CA1272632A - Carrying handle for a can carton - Google Patents
Carrying handle for a can cartonInfo
- Publication number
- CA1272632A CA1272632A CA000531785A CA531785A CA1272632A CA 1272632 A CA1272632 A CA 1272632A CA 000531785 A CA000531785 A CA 000531785A CA 531785 A CA531785 A CA 531785A CA 1272632 A CA1272632 A CA 1272632A
- Authority
- CA
- Canada
- Prior art keywords
- horn
- container
- tip
- blank
- flanges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
- B29C65/7867—In-line machines, i.e. feeding, joining and discharging are in one production line using carriers, provided with holding means, said carriers moving in a closed path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
- B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/006—Preventing damaging, e.g. of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
- B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
- B29C66/7352—Thickness, e.g. very thin
- B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
- B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83531—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
- B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
- B29C66/92613—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools the gap being kept constant over time
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
- B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
- B29C66/92653—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops said stops being adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
- B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
- B29C66/7486—Paper, e.g. cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
- B29K2711/12—Paper, e.g. cardboard
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S53/00—Package making
- Y10S53/02—High frequency electric sealing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1034—Overedge bending of lamina about edges of sheetlike base
Abstract
ABSTRACT
An ultrasonic heatsealing mechanism and process for securing portions of a carton blank to at least one flanged container in which the surfaces to be secured are susceptible to ultrasonic heatsealing. The mechan-ism comprises a resiliently mounted ultrasonic horn and a series of movable counterpart elements spaced from an adjacent tip of the horn so that the counterpart elements move relative to the end of the horn one after the other. Means are provided to move the container and blank so that overlapping surfaces to be heatsealed together are passed with the counterpart elements longitudinally with respect to the horn tip means being provided to activate the horn at least when the sur-faces and at least one counterpart element are present together adjacent said end of the horn so that heat-sealing can occur and causing the horn to move resil-iently so that a constant gap between the tip of the horn and that counterpart element is maintained subst-antially constant during the heatsealing process.
An ultrasonic heatsealing mechanism and process for securing portions of a carton blank to at least one flanged container in which the surfaces to be secured are susceptible to ultrasonic heatsealing. The mechan-ism comprises a resiliently mounted ultrasonic horn and a series of movable counterpart elements spaced from an adjacent tip of the horn so that the counterpart elements move relative to the end of the horn one after the other. Means are provided to move the container and blank so that overlapping surfaces to be heatsealed together are passed with the counterpart elements longitudinally with respect to the horn tip means being provided to activate the horn at least when the sur-faces and at least one counterpart element are present together adjacent said end of the horn so that heat-sealing can occur and causing the horn to move resil-iently so that a constant gap between the tip of the horn and that counterpart element is maintained subst-antially constant during the heatsealing process.
Description
~ 2~6~
ULTRASONIC HEATSEALING FOR SECURING
CARTON BLANKS TO ARTICLES IN FORMING A PACKAGE
This invention relates to a method and a mechanism for securing materials together by means of ultrasonic heatsealing and is particularly suitable for forming a multi-unit package comprising a group of containers having outwardly extending flanges to which a paper- -board blank is secured by ultrasonic heatsealing.
US Patent No 3,562,041 discloses an ultrasonic heat-sealing process in which a pair of materials to be 1û heatsealed to one another are passed together with so-called anvil orcounterpart plates beneath the tip of an ultrasonic horn. In this arrangement the materials (and the anvils) pass transversely of the horn tip so that the contact time during whi'ch the material~s are 1~ subjected to ultrasonic bombardment is limited in relation to the width of the tip of the horn. Moreover the tip of the horn is set at a fixed distance from the juxtaposed face of the anvils during the heatsealing process.
~72~3;2 Heatsealing by means of an elongate ultrasonic horn extending in the direction of the weld seam to be formed is however known e.g. from U5 Patent No 3,0~8,343.
The present invention seeks to satisfy the req~irements of producirlg satisfactory seal strength achieved in a relatively rapid process. In this regard, it will be appreciated that there is a direct relationship between the strength of the seal, the contact time of the materials beneath the horn and the gap between the horn tip and counterplate elements (anvils). The present invention recognises the advantage in keeping a substantially constant gap throughout the heatsealing process where the thickness of one of the materials alters e.g. due to some degree of melting during the sealing process.
One aspect of the invention provides a method of form-ing a package whereby a blank of paperboard or similarfodable sheet material is secured to the top of a container made of thermoplastic material and having opposed outwardly projecting flanges at the top thereof and said blank comprises a top panel and securing strips foldably joined to the side edges of said top panel, which method comprises the steps of (a) applying said blank to the tûp of said container so that the top panel covers the top of said container and said securing strips extend beyond the flanges thereof, (b) folding said securing strips of said blank into contact with the undersides of said flanges so that at least portions of said flanges are interposed ~etween portions of said top panel and said securing strips to form overlapped side edge portions.
~Z7;~3;32 - 2a -(c) applying pressure to said overlapped side edge portions and simultaneously subjecting said portions to ultrasonic energy whereby the interior surfaces of said securing strips are welded to the undersides of said container flanges.
~i~7~3~
An embodiment of the invention will now be described by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a schematic, perspective view of a machine for applying~ folding and ultrasonically heat-sealing a paperboard blank to a group of containers to form a package;
1û Figures 1a to 1d are schematic cross-sectional end views showing' sequentially the manner in which the blank is applied, folded and heat-sealed to the container group;
Figure 2 is a schematic perspective view of an ultra-sonic heat-sealing mechanism incorporated in the machine shown in Figure 1;
Figure 3 is a schematic end view in partial cross-section, of the mechanism shown in Figure 2;
Figure 4 is an enlarged perspective view of one of the counterpart blocks or anvils used in the mechanism depicted in Figures 2 and 3;
Figure 5 is a plan view of a paperboard blank suitable for application to a group of containers, in accordance with the invention; and Figure 5a is a perspective view of a completed package formed according to the invention.
Referring first to Figure 5, an elongate blank 1 is formed from paperboard or similar foldable 'sheet material and which comprises a top panel 2 having spaced apertures a, a1. Securing strips 3, 4 are hinged;to respective ones of the longitudinal edges of the top panel along fold lines 5, 6 respectively. A
side panel 7 is hinged to securing strip 3 along fold ~Z7;~
line 9 and a side panel 8 is hinged to securlng strip 4 along fold line 10.
To form the completed package shown e.g. in Figure 5a, the blank 1 is applied to a group 'G' of containers so that the top panel 1 lies on the tops of the containers in the group and the securing strips 3, 4 brought into abutment with andheat-sealed to the under-faces of the flanges 'f' of the c~ntainers in each of the rows R1, R2 by folding the blank along fold lines 5, 9 and 6, 10. This folding operation which is described in detail hereinafter brings each of the side panels 7, ~ into aoutment with the exposed faces of the containers at the sides of the package.
Referring now to Figure 1 and la-1d, there is shown a packaging machine 'M' for applying the paperboard blank 1 to a group of articles in a continuous operation.
The blank 1 may be applied to a single container 2û possibly providing a closure lid thereof; or a single row of containers; or more usually a group of con-tainers arranged in two or more parallel rows. In this embodiment the blank is applied to a group of eight plastics containers arranged in two rows R', RZ cf four containers per row. The containers are pots or cups having outwardly extending flanges 'f' at their tops and each container is secured by a portion of its top flange 'f' to another immediateiy adjacent container in the group. This securing arrangement for such flanged cups has become well known for selling popular foodproducts such as yogurt and desserts. Each cup in the group can be readily detached from an adjacent cup by a frangible connection between the respective connected top flanges.
At the infeed end of the machine 'M' which corresponds to the location of flow arrow 'F', an infeed platform 12 is provided along which a container group 'G1' is supported and conveyed. The platform 12 is provided ~Z~ 2 is provided with an upstanding central guide 12a to prevent the container group 'G1~ being dislodged transversely of the infeed platform. ~ flow regulator device comprising a horizontally rotatable disc 14 is disposed alongside the infeed platform and has a periphery which is formed to provide an annular series ` of projections 14a. The projections are spaced apart so as to be insertable between successive containers in each group as that group passes the disc and thereby regulates the linear speed of the container group. A
similar flow regulatoI may be provided at an opposed location to that of disc 14, adjacent the infeed plat-form 12.
The container group at position 'G2' is then engaged and further conveyed along the infeed platform by a timing assembly 16 comprising an endless timing chain 16a entrained about horizontally disposed spaced sprockets 16b, 16c. The timing chain 16a carries a 2û series of lugs 16d of generally 'L'-shaped form, each of which engages the trailing edge of a container group so that the group 'G2' is pushed along the infeed plat-form and onto the upper reach of a moving conveyor assembly 20 contiguous therewith as will be described shortly. At position 'G2', a blank 'B2' is applied to the container group 'G2' from a supply of blanks 'B1' held in a hopper (not shown) above the infeed platform.
The blanks 'B1' are removed from the hopper success-ively by a known rotatable feed device 18 having a plurality of suction-cup arms 18a. The timing as~mbly 16 and the blank feed device 18 are driven in syn-chronism so that lZ7263~
successive blanks are applied onto the tops of the containers as each container group arrives at position 'G2' on the lnfeed conveyor. A similar timing assembly may be provided at an opposed location to that of assembly 16 adjacent the infeed platform and moving conveyor assembly 20.
The moving conveyor assembly 20 comprises a pair of side-by-side endless conveyor belts 22, 24 which are closely spaced apart by a continuation of central guides 12a so that one row R1 of containers in each group is seated on one belt and the other row R2 of containers in that group is seated on the neighbouring belt. The belts 22 and 24 are driven in unison by common longitudinally spaced drive wheels 26, 28 respectively.
A parallel overhead conveyor assembly 30 is mounted above the conveyor assembly 20 and comprises an endless belt 32 entrained about spaced drive wheels 34, 36 whose axes are parallel to those of drive wheels 26 and 28. Belts 22, 24 and 32 are driven in synchronism.
Belt 32 has a lower working reach which is spaced above the upper working reach of the belts 22, 24 by an amount which is approximately the height of a container group 'G'. Generally, the overhead belt is positioned so that its lower working reach applies downward pressure onto the container groups below. Belt 32 is formed with a series of transverse locator bars 38 arranged in spaced apart pairs such that the distance between a pair of locator bars 38-38a approximates the long-itudinal dimension of a container group. Belt 32 also carries a series of pairs of locator studs 40 each pair of studs being disposed between a pair of the located bars 38-38a. The locator bars and studs are provided to ensure that each of the carton blanks is maintained in its correct position relative to a container group along the working reaches of upper and lower conveyor assemblies 20 and 30. Thus, at the position of 127~31~
c~ntainer group 'G~' which corresponds to the infeed end of the Conveyor assemblies 20, 30, the containèr group is located at its leading end by a locator bar 38a, at its trailing end by a locator bar ~8 and loca~or studs 40 are engaged in the spaced apertures a,a, for the top panel ~ of the blank. A schematic end vieh~ of the container group at position 'G3' is shown in Figure 1a from which it can be seen that the blank 'B~' has its top panel centrally po~itioned and engaged with the tops of the containers in the group and its side panels disposed in the same horizontal plane as the top panel.
As the container group moves downstream of flow path 'F', it enters a folding section of the machine. The blank of the container group is then subjected to an initial folding operation in which the side wall panels 7, 8 together with the securing strips 3, 4 are folded substantially vertically downwards relative to the top panel as shown schematically in Figure 1b.
This initial folding operation is accomplished by means of static fold bars only one of which 42 is shown disposed on either side of the conveyor assembly 2û.
Each static fold bar is forwardly and downwardly inclined so that the side panels together with securing strips 3, 4 are progressively folded downwards about fold lines 5, 6 respectively as the container group advances. The container group at position G4 is nearing the completion of this folding operation. In a subse~uent folding operation it is necessary to bring the securing strips 3, 4 of the blank into face contac-ting relationship with the undersides of the container flanges 'f' as shown in Figure 1c preparatory to heat-sealing the securing strips to the undersides of the flanges by means of ultrasonic welding. This subsequent folding operation is accomplished by folding ~272~
blocks only one of which, 44, is shown and which are disposed on either side of the conveyor assembly 20.
Each folding block 44 has a cuneiform upstream end which has an upwardly inclined ramp surface 46 increa-sing in height in the feed direction of the container group and thereafter a contiguous uppermost horizontal surface 48. As the container group advances, the securing strips of the blank are caused to engage the ramp surfaces of the folding blocks and the strips and 1û their associated side panels progressively are folded about fold lines 5, 9; 6, 1û so that the securing strips are folded around and are folded into face contacting relationship with the container flanges and thereafter maintained in this folded condition by the upper horizontal surface 48 of the folding block.
The downstream end of the horizontal surface of folding block 44 is contiguous with an upper reach of an end-less set of counterpart blocks 52 at an ultrasonic heat-seaiing station. At the completion of the folding operation the container group is at position 'G5' and the ~rapper blank is disposed as depicted in Figure 1c, ready for heat-sealing as shown schematically in Figure ld.
Referring now additionally to Figures 2 and 3 of the drawings, an ultrasonic heat-sealing mechanism is located on either side of conveyor 3û, only one of which, designated reference numeral 50, is shown.
Mechanism 50 comprises an ultrasonic horn H disposed in an upright attitude at the lower end of an amplifier HA
is mounted for resilient vertical movement relative to the container group carton blank feed path 'F'.
A continuous set of counterpart blocks 52 which are metallic or may be some other suitable material is mounted for movement in an endless path having a working reach 'W~ and a retvrn reach 'R'. Each of the blocks is caused to pass alongside the feed path ~f~ in succession beneath the horn so that in the working reach they pass beneath and support the container flanges. The tip HT of the horn and each block 52 is of like longitudinal dimension as measured in the direction of flow 'F'. The horn is activated by a suitable energy source via the amplifier HA so as to emit ultrasonic waves from its tip. Each block 52 is carried by a respective lug 54 fixed to project from one side of an endless chain 56 ~figure 3). The chain is entrained about spaced sprockets 58 and 60 respect-ively and is driven from a suitable drive source in synchronism with carton flow. Within the working reach 'W~ in the vicinity of the horn tip, a static guide 62 is provided to support the counterpart blocks 52 as they pass beneath the horn.
2û Container group G6 is only partially depicted in Figures 2 and 3 in which a pair of containers 'C1', 'C2' of one row are shown in tandem, each container having a top flange 'f' sealed with a lid of plastics or aliminium material.
The blank 'B6' enters the working reach 'W' in the configuration shown in Figure 1d and 2. The containers together with the over-wrapped blank are conveyed along the feed path 'F' in synchronism with the moving 3û counterpart blocks 52. As will be seen, the container flanges (at one side of the container) including por-tions of the wrapper wrapped thereabout pass beneath the horn tip HT so that the underflange securing panel 3 ~or 4) lies atop a plurality of the counterpart blocks. At the horn location where counterpart block 52a is momentarily present heatsealing takes place.
The sealing ultrasonic vibrations are created between the container flanges and the counterpart block 52a which supports securing ~2~263~
1 o --strip 3 so that the strip 3 is heatsealed to the under-surface of the container flange.
Thus a heat seal is obtained between the container flanges and securing strip ~ corresponding to the presence of a counterpart block 52a beneath the ultrasonic horn tip. Preferably the counter-part blocks may be disposed in abutting relationship to produce a substantially continuous seal. ûf course, 1û in order to accomplish heatsealing of the containers and wrapper blank at the opposed side of the carton, a similar mechanism is located parallel to that shown adjacent the opposite side of conveyor assembly 2û in order to seal the opposed side of the package.
It has been found desirable to mount the ultrasonic horn resiliently so that it can move vertically as shown by arrow V1-V2 along its vertical axis. By this means, during the ultrasonic heatsealing process the horn tip can maintain an optimum sealing pressure at the container flange while the plastics flange is softening and becoming more fluid by being urged downwardly to compensate for the reduced thickness of the overlapped area as the flange melts.
In order to provide for resilient vertical movement of the ultrasonic horn a pneumatic or hydraulic (or other form of) damping device 64 is mounted alongside the 3û heatsealino mechanism S0. Device 64 includes an extensible and retractable leg 66 which engages a tran-sverse arm 68 extending from mechanism Sû and which, in use, urges the horn H downwardly, so that a subs.tan-tially constant gap 'g' between the horn tip HT and the uppermost surface of the counterplate blocks is main-tained throughout the heatsealing process. The gap 'g' may be preset to a desired value with the aid of an adjustable stop 7û.
~2~ 32 - 1 1 _ EX~MPLE
The following example gives a set of parameters which produce a satisfactory seal at the board~flange inter-face at a linear speed of 52m~min in relation to a package comprising a group of plastics containers in a
ULTRASONIC HEATSEALING FOR SECURING
CARTON BLANKS TO ARTICLES IN FORMING A PACKAGE
This invention relates to a method and a mechanism for securing materials together by means of ultrasonic heatsealing and is particularly suitable for forming a multi-unit package comprising a group of containers having outwardly extending flanges to which a paper- -board blank is secured by ultrasonic heatsealing.
US Patent No 3,562,041 discloses an ultrasonic heat-sealing process in which a pair of materials to be 1û heatsealed to one another are passed together with so-called anvil orcounterpart plates beneath the tip of an ultrasonic horn. In this arrangement the materials (and the anvils) pass transversely of the horn tip so that the contact time during whi'ch the material~s are 1~ subjected to ultrasonic bombardment is limited in relation to the width of the tip of the horn. Moreover the tip of the horn is set at a fixed distance from the juxtaposed face of the anvils during the heatsealing process.
~72~3;2 Heatsealing by means of an elongate ultrasonic horn extending in the direction of the weld seam to be formed is however known e.g. from U5 Patent No 3,0~8,343.
The present invention seeks to satisfy the req~irements of producirlg satisfactory seal strength achieved in a relatively rapid process. In this regard, it will be appreciated that there is a direct relationship between the strength of the seal, the contact time of the materials beneath the horn and the gap between the horn tip and counterplate elements (anvils). The present invention recognises the advantage in keeping a substantially constant gap throughout the heatsealing process where the thickness of one of the materials alters e.g. due to some degree of melting during the sealing process.
One aspect of the invention provides a method of form-ing a package whereby a blank of paperboard or similarfodable sheet material is secured to the top of a container made of thermoplastic material and having opposed outwardly projecting flanges at the top thereof and said blank comprises a top panel and securing strips foldably joined to the side edges of said top panel, which method comprises the steps of (a) applying said blank to the tûp of said container so that the top panel covers the top of said container and said securing strips extend beyond the flanges thereof, (b) folding said securing strips of said blank into contact with the undersides of said flanges so that at least portions of said flanges are interposed ~etween portions of said top panel and said securing strips to form overlapped side edge portions.
~Z7;~3;32 - 2a -(c) applying pressure to said overlapped side edge portions and simultaneously subjecting said portions to ultrasonic energy whereby the interior surfaces of said securing strips are welded to the undersides of said container flanges.
~i~7~3~
An embodiment of the invention will now be described by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a schematic, perspective view of a machine for applying~ folding and ultrasonically heat-sealing a paperboard blank to a group of containers to form a package;
1û Figures 1a to 1d are schematic cross-sectional end views showing' sequentially the manner in which the blank is applied, folded and heat-sealed to the container group;
Figure 2 is a schematic perspective view of an ultra-sonic heat-sealing mechanism incorporated in the machine shown in Figure 1;
Figure 3 is a schematic end view in partial cross-section, of the mechanism shown in Figure 2;
Figure 4 is an enlarged perspective view of one of the counterpart blocks or anvils used in the mechanism depicted in Figures 2 and 3;
Figure 5 is a plan view of a paperboard blank suitable for application to a group of containers, in accordance with the invention; and Figure 5a is a perspective view of a completed package formed according to the invention.
Referring first to Figure 5, an elongate blank 1 is formed from paperboard or similar foldable 'sheet material and which comprises a top panel 2 having spaced apertures a, a1. Securing strips 3, 4 are hinged;to respective ones of the longitudinal edges of the top panel along fold lines 5, 6 respectively. A
side panel 7 is hinged to securing strip 3 along fold ~Z7;~
line 9 and a side panel 8 is hinged to securlng strip 4 along fold line 10.
To form the completed package shown e.g. in Figure 5a, the blank 1 is applied to a group 'G' of containers so that the top panel 1 lies on the tops of the containers in the group and the securing strips 3, 4 brought into abutment with andheat-sealed to the under-faces of the flanges 'f' of the c~ntainers in each of the rows R1, R2 by folding the blank along fold lines 5, 9 and 6, 10. This folding operation which is described in detail hereinafter brings each of the side panels 7, ~ into aoutment with the exposed faces of the containers at the sides of the package.
Referring now to Figure 1 and la-1d, there is shown a packaging machine 'M' for applying the paperboard blank 1 to a group of articles in a continuous operation.
The blank 1 may be applied to a single container 2û possibly providing a closure lid thereof; or a single row of containers; or more usually a group of con-tainers arranged in two or more parallel rows. In this embodiment the blank is applied to a group of eight plastics containers arranged in two rows R', RZ cf four containers per row. The containers are pots or cups having outwardly extending flanges 'f' at their tops and each container is secured by a portion of its top flange 'f' to another immediateiy adjacent container in the group. This securing arrangement for such flanged cups has become well known for selling popular foodproducts such as yogurt and desserts. Each cup in the group can be readily detached from an adjacent cup by a frangible connection between the respective connected top flanges.
At the infeed end of the machine 'M' which corresponds to the location of flow arrow 'F', an infeed platform 12 is provided along which a container group 'G1' is supported and conveyed. The platform 12 is provided ~Z~ 2 is provided with an upstanding central guide 12a to prevent the container group 'G1~ being dislodged transversely of the infeed platform. ~ flow regulator device comprising a horizontally rotatable disc 14 is disposed alongside the infeed platform and has a periphery which is formed to provide an annular series ` of projections 14a. The projections are spaced apart so as to be insertable between successive containers in each group as that group passes the disc and thereby regulates the linear speed of the container group. A
similar flow regulatoI may be provided at an opposed location to that of disc 14, adjacent the infeed plat-form 12.
The container group at position 'G2' is then engaged and further conveyed along the infeed platform by a timing assembly 16 comprising an endless timing chain 16a entrained about horizontally disposed spaced sprockets 16b, 16c. The timing chain 16a carries a 2û series of lugs 16d of generally 'L'-shaped form, each of which engages the trailing edge of a container group so that the group 'G2' is pushed along the infeed plat-form and onto the upper reach of a moving conveyor assembly 20 contiguous therewith as will be described shortly. At position 'G2', a blank 'B2' is applied to the container group 'G2' from a supply of blanks 'B1' held in a hopper (not shown) above the infeed platform.
The blanks 'B1' are removed from the hopper success-ively by a known rotatable feed device 18 having a plurality of suction-cup arms 18a. The timing as~mbly 16 and the blank feed device 18 are driven in syn-chronism so that lZ7263~
successive blanks are applied onto the tops of the containers as each container group arrives at position 'G2' on the lnfeed conveyor. A similar timing assembly may be provided at an opposed location to that of assembly 16 adjacent the infeed platform and moving conveyor assembly 20.
The moving conveyor assembly 20 comprises a pair of side-by-side endless conveyor belts 22, 24 which are closely spaced apart by a continuation of central guides 12a so that one row R1 of containers in each group is seated on one belt and the other row R2 of containers in that group is seated on the neighbouring belt. The belts 22 and 24 are driven in unison by common longitudinally spaced drive wheels 26, 28 respectively.
A parallel overhead conveyor assembly 30 is mounted above the conveyor assembly 20 and comprises an endless belt 32 entrained about spaced drive wheels 34, 36 whose axes are parallel to those of drive wheels 26 and 28. Belts 22, 24 and 32 are driven in synchronism.
Belt 32 has a lower working reach which is spaced above the upper working reach of the belts 22, 24 by an amount which is approximately the height of a container group 'G'. Generally, the overhead belt is positioned so that its lower working reach applies downward pressure onto the container groups below. Belt 32 is formed with a series of transverse locator bars 38 arranged in spaced apart pairs such that the distance between a pair of locator bars 38-38a approximates the long-itudinal dimension of a container group. Belt 32 also carries a series of pairs of locator studs 40 each pair of studs being disposed between a pair of the located bars 38-38a. The locator bars and studs are provided to ensure that each of the carton blanks is maintained in its correct position relative to a container group along the working reaches of upper and lower conveyor assemblies 20 and 30. Thus, at the position of 127~31~
c~ntainer group 'G~' which corresponds to the infeed end of the Conveyor assemblies 20, 30, the containèr group is located at its leading end by a locator bar 38a, at its trailing end by a locator bar ~8 and loca~or studs 40 are engaged in the spaced apertures a,a, for the top panel ~ of the blank. A schematic end vieh~ of the container group at position 'G3' is shown in Figure 1a from which it can be seen that the blank 'B~' has its top panel centrally po~itioned and engaged with the tops of the containers in the group and its side panels disposed in the same horizontal plane as the top panel.
As the container group moves downstream of flow path 'F', it enters a folding section of the machine. The blank of the container group is then subjected to an initial folding operation in which the side wall panels 7, 8 together with the securing strips 3, 4 are folded substantially vertically downwards relative to the top panel as shown schematically in Figure 1b.
This initial folding operation is accomplished by means of static fold bars only one of which 42 is shown disposed on either side of the conveyor assembly 2û.
Each static fold bar is forwardly and downwardly inclined so that the side panels together with securing strips 3, 4 are progressively folded downwards about fold lines 5, 6 respectively as the container group advances. The container group at position G4 is nearing the completion of this folding operation. In a subse~uent folding operation it is necessary to bring the securing strips 3, 4 of the blank into face contac-ting relationship with the undersides of the container flanges 'f' as shown in Figure 1c preparatory to heat-sealing the securing strips to the undersides of the flanges by means of ultrasonic welding. This subsequent folding operation is accomplished by folding ~272~
blocks only one of which, 44, is shown and which are disposed on either side of the conveyor assembly 20.
Each folding block 44 has a cuneiform upstream end which has an upwardly inclined ramp surface 46 increa-sing in height in the feed direction of the container group and thereafter a contiguous uppermost horizontal surface 48. As the container group advances, the securing strips of the blank are caused to engage the ramp surfaces of the folding blocks and the strips and 1û their associated side panels progressively are folded about fold lines 5, 9; 6, 1û so that the securing strips are folded around and are folded into face contacting relationship with the container flanges and thereafter maintained in this folded condition by the upper horizontal surface 48 of the folding block.
The downstream end of the horizontal surface of folding block 44 is contiguous with an upper reach of an end-less set of counterpart blocks 52 at an ultrasonic heat-seaiing station. At the completion of the folding operation the container group is at position 'G5' and the ~rapper blank is disposed as depicted in Figure 1c, ready for heat-sealing as shown schematically in Figure ld.
Referring now additionally to Figures 2 and 3 of the drawings, an ultrasonic heat-sealing mechanism is located on either side of conveyor 3û, only one of which, designated reference numeral 50, is shown.
Mechanism 50 comprises an ultrasonic horn H disposed in an upright attitude at the lower end of an amplifier HA
is mounted for resilient vertical movement relative to the container group carton blank feed path 'F'.
A continuous set of counterpart blocks 52 which are metallic or may be some other suitable material is mounted for movement in an endless path having a working reach 'W~ and a retvrn reach 'R'. Each of the blocks is caused to pass alongside the feed path ~f~ in succession beneath the horn so that in the working reach they pass beneath and support the container flanges. The tip HT of the horn and each block 52 is of like longitudinal dimension as measured in the direction of flow 'F'. The horn is activated by a suitable energy source via the amplifier HA so as to emit ultrasonic waves from its tip. Each block 52 is carried by a respective lug 54 fixed to project from one side of an endless chain 56 ~figure 3). The chain is entrained about spaced sprockets 58 and 60 respect-ively and is driven from a suitable drive source in synchronism with carton flow. Within the working reach 'W~ in the vicinity of the horn tip, a static guide 62 is provided to support the counterpart blocks 52 as they pass beneath the horn.
2û Container group G6 is only partially depicted in Figures 2 and 3 in which a pair of containers 'C1', 'C2' of one row are shown in tandem, each container having a top flange 'f' sealed with a lid of plastics or aliminium material.
The blank 'B6' enters the working reach 'W' in the configuration shown in Figure 1d and 2. The containers together with the over-wrapped blank are conveyed along the feed path 'F' in synchronism with the moving 3û counterpart blocks 52. As will be seen, the container flanges (at one side of the container) including por-tions of the wrapper wrapped thereabout pass beneath the horn tip HT so that the underflange securing panel 3 ~or 4) lies atop a plurality of the counterpart blocks. At the horn location where counterpart block 52a is momentarily present heatsealing takes place.
The sealing ultrasonic vibrations are created between the container flanges and the counterpart block 52a which supports securing ~2~263~
1 o --strip 3 so that the strip 3 is heatsealed to the under-surface of the container flange.
Thus a heat seal is obtained between the container flanges and securing strip ~ corresponding to the presence of a counterpart block 52a beneath the ultrasonic horn tip. Preferably the counter-part blocks may be disposed in abutting relationship to produce a substantially continuous seal. ûf course, 1û in order to accomplish heatsealing of the containers and wrapper blank at the opposed side of the carton, a similar mechanism is located parallel to that shown adjacent the opposite side of conveyor assembly 2û in order to seal the opposed side of the package.
It has been found desirable to mount the ultrasonic horn resiliently so that it can move vertically as shown by arrow V1-V2 along its vertical axis. By this means, during the ultrasonic heatsealing process the horn tip can maintain an optimum sealing pressure at the container flange while the plastics flange is softening and becoming more fluid by being urged downwardly to compensate for the reduced thickness of the overlapped area as the flange melts.
In order to provide for resilient vertical movement of the ultrasonic horn a pneumatic or hydraulic (or other form of) damping device 64 is mounted alongside the 3û heatsealino mechanism S0. Device 64 includes an extensible and retractable leg 66 which engages a tran-sverse arm 68 extending from mechanism Sû and which, in use, urges the horn H downwardly, so that a subs.tan-tially constant gap 'g' between the horn tip HT and the uppermost surface of the counterplate blocks is main-tained throughout the heatsealing process. The gap 'g' may be preset to a desired value with the aid of an adjustable stop 7û.
~2~ 32 - 1 1 _ EX~MPLE
The following example gives a set of parameters which produce a satisfactory seal at the board~flange inter-face at a linear speed of 52m~min in relation to a package comprising a group of plastics containers in a
2 x 4 cups configuration (as shown in Figure 1) havin~
a package length i.e. seal length of 252 mm and in which the flange width i.e. seal width is 4.5 mm. The 1û power supplied to the ultrasonic generator was 1.2kw and the frequency at the tip of the horn was 20,000HZ.
1. The Horn Length (dimension 'l') = 80 mm ~idth (dimension 'y') = 8 mm Amplitude (dimension x/y) = 74 microns ~aterial = Titanium 2. The Cou terpart Blocks See Figure 5. The upper surface of each of the coun-- terpart blocks is serrated by a series of transverse (in relation to flow path F) ridges, as shown in Figure 5. All dimensions shown are in millimetres. The ridge dimensions are as follows:-a = 1.5 mm b = 0.75 mm q = 12 mm r = 25 mm s = 10 mm I
a package length i.e. seal length of 252 mm and in which the flange width i.e. seal width is 4.5 mm. The 1û power supplied to the ultrasonic generator was 1.2kw and the frequency at the tip of the horn was 20,000HZ.
1. The Horn Length (dimension 'l') = 80 mm ~idth (dimension 'y') = 8 mm Amplitude (dimension x/y) = 74 microns ~aterial = Titanium 2. The Cou terpart Blocks See Figure 5. The upper surface of each of the coun-- terpart blocks is serrated by a series of transverse (in relation to flow path F) ridges, as shown in Figure 5. All dimensions shown are in millimetres. The ridge dimensions are as follows:-a = 1.5 mm b = 0.75 mm q = 12 mm r = 25 mm s = 10 mm I
3. Horn/Counterpart Block Cap (Pressure) During vltrasonic heatsealing, total thickness of the materials = Plastics (flange) f Lid + Paperboard ~BlankJ
= 0.97 mm + 0.04 mm f (0.37 x 2) mm = 1.75 mm ~2~3~
Gap 'g' is set at between 0.95 mm and 1.05 mm i.e.
0.95 mm < 9 <1.05 mm.
The upstream end of the horn tip HT may be bevelled or flared to facilitate the overlapped side edge portions to move into gap '9l. The horn tip itself may be coated with TEE material or the like to reduce friction as the overlapped side edge portions are advanced while the horn tip applies pressure thereto.
lû
It has been fûund that when 'g' > substantially 1.05 mm the seal strength becomes unacceptable and when ~9 C
substantially 0.95 mm damage (scoring) to the blank and/or container lid occurs.
The following table gives a series of static test loads (in Kg) applied to the carton sufficient to break the seal between the paperboard and the plastics material of the container flanges all of which are regarded as 2û being associated with satisfactory flange/board seal-ing.
\ GAP
Pressur ~ 'G' (Kgf) ~ mm) û.95 1.ûû 1.û5 49.6û 4 46Kg 3.14Kg 3.3 Kg 3û
63.75 4.14Kg 3.26Kg 2.9~Kg 73.00 4.7 Kg 3.32Kg 3.00Kg ~27~
_ 13 -7he pressure in the above table is that applied by the ultrasonic horn tip during the heating process.
It is envisaged that the package could comprise a single container having opposed outwardly projecting flanges at the top thereof rather than the multiple container package described and shown in .Figure ~a.
= 0.97 mm + 0.04 mm f (0.37 x 2) mm = 1.75 mm ~2~3~
Gap 'g' is set at between 0.95 mm and 1.05 mm i.e.
0.95 mm < 9 <1.05 mm.
The upstream end of the horn tip HT may be bevelled or flared to facilitate the overlapped side edge portions to move into gap '9l. The horn tip itself may be coated with TEE material or the like to reduce friction as the overlapped side edge portions are advanced while the horn tip applies pressure thereto.
lû
It has been fûund that when 'g' > substantially 1.05 mm the seal strength becomes unacceptable and when ~9 C
substantially 0.95 mm damage (scoring) to the blank and/or container lid occurs.
The following table gives a series of static test loads (in Kg) applied to the carton sufficient to break the seal between the paperboard and the plastics material of the container flanges all of which are regarded as 2û being associated with satisfactory flange/board seal-ing.
\ GAP
Pressur ~ 'G' (Kgf) ~ mm) û.95 1.ûû 1.û5 49.6û 4 46Kg 3.14Kg 3.3 Kg 3û
63.75 4.14Kg 3.26Kg 2.9~Kg 73.00 4.7 Kg 3.32Kg 3.00Kg ~27~
_ 13 -7he pressure in the above table is that applied by the ultrasonic horn tip during the heating process.
It is envisaged that the package could comprise a single container having opposed outwardly projecting flanges at the top thereof rather than the multiple container package described and shown in .Figure ~a.
Claims (11)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method of forming a package whereby a blank of paperboard or similar foldable sheet material is secured to the top of a container made of thermoplastic material and having opposed outwardly projecting flanges at the top thereof and said blank comprises a top panel and securing strips foldably joined to the side edges of said top panel, which method comprises the steps of (a) applying said blank to the top of said container so that the top panel covers the top of said container and said securing strips extend beyond the flanges thereof, (b) folding said securing strips of said blank into contact with the undersides of said flanges so that at least portions of said flanges are interposed between portions of said top panel and said securing strips to form overlapped side edge portions, (c) applying pressure to said overlapped side edge portions and simultaneously subjecting said portions to ultrasonic energy whereby the interior surfaces of said securing strips are welded to the undersides of said container flanges.
2. The method of claim 1, characterised in that said steps (a) through (c) are performed in continous motion in a longitudinal direction.
3. The method of claim 2, further characterised in that said ultrasonic energy is provided by a stationary ultrasonic horn having a longitudinally extending tip and in that an anvil means is provided beneath said tip and arranged in spaced relationship thereto so that a predetermined gap is formed between said tip and said anvil means within which said overlapped side edge portions are received.
4. The method of claim 3, further characterised in that said anvil means is mounted on continuously moving endless chains.
5. The method of claim 3 or claim 4 further character-ised in that pressure is exerted on said side edge por-tions by said horn which is adjustably and resiliently mounted.
6. The method of claim 3 further characterised in that said gap is set to correspond to about 50% to 60% of the thickness of the overlapped side edge portions as measured prior to exposure to the ultrasonic energy.
7. The method of claim 6 further characterised in that the upstream end of said horn tip is flared to facilitate said overlapped side edge portions to move into said gap.
8. The method of claim 7 further characterised in that said tip of the horn has a longitudinal dimension of about 80 mm and the linear speed at which the overlapped side edge portions move underneath said tip is approximately 80mm/sec.
9. The method of claim 1, wherein the frequency of vibrations at said tip is 20,000 HZ.
10. The method of claim 3 further characterised in that said anvil means has a serrated upper surface.
11. The method of claim 1, further characterised in that the container comprises a plurality of individual containers each of which is connected to at least one adjacent container by an outwardly projecting top flange thereof so that said opposed outwardly projecting top flanges are each substantially continuous.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8606640 | 1986-03-18 | ||
GB868606640A GB8606640D0 (en) | 1986-03-18 | 1986-03-18 | Ultrasonic heat sealing |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1272632A true CA1272632A (en) | 1990-08-14 |
Family
ID=10594797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000531785A Expired - Lifetime CA1272632A (en) | 1986-03-18 | 1987-03-11 | Carrying handle for a can carton |
Country Status (16)
Country | Link |
---|---|
US (1) | US4750955A (en) |
EP (1) | EP0238295B1 (en) |
JP (1) | JPS62235004A (en) |
KR (1) | KR960009595B1 (en) |
CN (1) | CN1009447B (en) |
AT (1) | ATE64347T1 (en) |
AU (1) | AU587110B2 (en) |
BR (1) | BR8701211A (en) |
CA (1) | CA1272632A (en) |
DE (1) | DE3770665D1 (en) |
ES (1) | ES2022332B3 (en) |
GB (1) | GB8606640D0 (en) |
MX (1) | MX171390B (en) |
MY (1) | MY100498A (en) |
NZ (1) | NZ219656A (en) |
PT (1) | PT84499B (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0340334A3 (en) * | 1988-05-05 | 1991-03-06 | Drescher Geschäftsdrucke Gmbh | Apparatus for joining two or multilayered paper articles together |
DE3829307A1 (en) * | 1988-08-30 | 1990-03-08 | 4 P Nicolaus Kempten Gmbh | METHOD AND DEVICE FOR WELDING PLASTIC SURFACES |
US4928611A (en) * | 1988-11-15 | 1990-05-29 | Brother Kogyo Kabushiki Kaisha | Sewing machine with guide and ironing means for folding back and pressing stitched fabric margins |
US5183523A (en) * | 1990-08-15 | 1993-02-02 | Philip Morris Incorporated | Apparatus for ultrasonically bonding endcaps to a container of dissimilar material |
EP0473320A1 (en) * | 1990-08-15 | 1992-03-04 | Philip Morris Products Inc. | Apparatus and method for forming hinged top cigarette box |
JP2715197B2 (en) * | 1991-10-18 | 1998-02-18 | 富士写真フイルム株式会社 | Packaging equipment |
US5214904A (en) * | 1991-12-20 | 1993-06-01 | Eastman Kodak Company | Flexible apparatus and process for placing packages of different sizes in sleeve type boxes |
US5243808A (en) * | 1992-09-01 | 1993-09-14 | Kliklok Corporation | Flanged carton sealing apparatus and method |
SE501002C2 (en) * | 1993-11-09 | 1994-10-17 | Moelnlycke Ab | Method and apparatus for ultrasonic welding at high running speeds of the material webs |
NZ297315A (en) * | 1994-10-03 | 1997-09-22 | Riverwood Int Corp | Device for erecting carton from a collapsed carrier sleeve: upper flaps of carton ride over a cam surface whilst the lower flaps ride under the cam surface |
AU3608795A (en) * | 1994-11-04 | 1996-05-31 | Tetra Laval Holdings & Finance Sa | Device for sealing plastic foam sheets |
DE19505298A1 (en) * | 1995-02-16 | 1996-08-22 | Ips Int Packaging Syst | Ultrasonic sealing |
US6065521A (en) * | 1996-06-21 | 2000-05-23 | Tharpe, Jr.; John M. | Disposable undergarment forming apparatus having folder, registration conveyor, side connector, and separator and methods of folding, registering, conveying, connecting, and separating same |
DE19902827C1 (en) * | 1999-01-15 | 2000-06-08 | Hielscher Gmbh | Precision adjustment of clearance between sonotrode and cutting tool when cutting and/or welding sheet materials |
DE29917831U1 (en) * | 1999-10-09 | 2001-02-22 | Kuesters Eduard Maschf | Device for processing a material web with ultrasound |
JP4603122B2 (en) * | 2000-02-23 | 2010-12-22 | 四国化工機株式会社 | Ultrasonic sealing device |
SE523208C2 (en) * | 2001-04-26 | 2004-04-06 | Tetra Laval Holdings & Finance | Opposition and procedure in ultrasonic sealing of opening devices for packaging, as well as packaging |
WO2004037647A2 (en) * | 2002-10-25 | 2004-05-06 | Kliklok Corporation | Carton feeding and forming machine with selectively actuated lugs and related methods |
US20100200371A1 (en) * | 2002-10-25 | 2010-08-12 | Urs Reuteler | Conveyor with selectively actuated lugs and related methods |
JP2004306506A (en) * | 2003-04-09 | 2004-11-04 | Canon Inc | Method for joining components, method for joining closure member to container, and ultrasonic welding device |
US7172671B2 (en) * | 2004-11-30 | 2007-02-06 | Nsk-Warner Kabushiki Kaisha | Method of manufacturing friction plate |
KR100918823B1 (en) * | 2009-07-15 | 2009-09-25 | 오필제 | Packing method for food container adoptting the ultrsonic-wave welding |
CN202670170U (en) * | 2011-05-11 | 2013-01-16 | 株式会社石田 | Transverse-sealing device for packaging machine |
EP2769919A4 (en) * | 2012-11-21 | 2015-05-20 | Carmona Manuel Ruiz | Appliance for joining a sheet-type body to the mouth of a box |
AR093586A1 (en) * | 2013-11-21 | 2015-06-10 | Oscar Nemi Elio | MACHINE TO ASSEMBLE CARTON BOXES BY STEPS MAINTAINING THE SQUARE |
CN106275676B (en) * | 2015-05-20 | 2018-08-03 | 华生水资源生技股份有限公司 | The drinking water barrel and its manufacturing system of bottleneck sheet type sealing |
CN113212869A (en) * | 2021-05-17 | 2021-08-06 | 王骏桃 | Packaging assembly line equipment for bar products |
CN116922864B (en) * | 2023-08-09 | 2024-02-06 | 岳阳犇腾塑料包装股份有限公司 | Plastic packaging bag heat-sealing treatment device |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2970634A (en) * | 1955-07-13 | 1961-02-07 | Hantscho Co George | Method and apparatus for applying cover material to book cores and cases |
CH394928A (en) * | 1960-04-08 | 1965-06-30 | Bebo Plastik Gmbh | Process for the continuous closing of can-shaped plastic containers by welding on plastic lids and device for carrying out the process |
CH393173A (en) * | 1961-02-20 | 1965-05-31 | Alupak Ag | Method and device for tightly closing a bowl-like container with a lid along an edge flange and containers closed according to the method |
US3088343A (en) * | 1961-04-28 | 1963-05-07 | Cavitron Ultrasonics Inc | Ultrasonic seam welding apparatus |
US3272682A (en) * | 1962-08-13 | 1966-09-13 | Cavitron Ultrasonics Inc | Apparatus for joining thermoplastic sheet material with ultrasonic rotary vibrators |
US3468731A (en) * | 1966-07-01 | 1969-09-23 | Branson Instr | Method and apparatus for sonically sealing the end portion of thermoplastic tubular containers |
US3505136A (en) * | 1966-09-19 | 1970-04-07 | Union Special Machine Co | Method and apparatus for bonding thermoplastic sheet materials |
US3562041A (en) * | 1967-10-26 | 1971-02-09 | Cavitron Corp | Method and apparatus for the ultrasonic joining of materials according to a pattern |
FR1600576A (en) * | 1968-02-01 | 1970-07-27 | ||
ZA71923B (en) * | 1970-02-19 | 1971-10-27 | E & A Robinson Ltd | Decorated or printed containers |
GB1514914A (en) * | 1975-05-21 | 1978-06-21 | Kerry Ultrasonics | Ultrasonic welding of plastics materials |
ZA77281B (en) * | 1976-01-28 | 1977-11-30 | Ex Cell O Corp | Apparatus and method for vibration sealing |
US4187768A (en) * | 1977-11-15 | 1980-02-12 | Nihon Dixie Company, Limited | Method for the manufacture of a paper container |
US4159771A (en) * | 1977-11-22 | 1979-07-03 | Meiji Seika Kabushiki Kaisha | Container having multiple independently unsealable compartments |
US4280865A (en) * | 1979-08-27 | 1981-07-28 | Dale Products, Inc. | Synchronized drive for heat sealing roller anvils |
US4301640A (en) * | 1979-11-09 | 1981-11-24 | Brown Company | Container closing means and process |
US4313778A (en) * | 1980-09-22 | 1982-02-02 | Branson Ultrasonics Corporation | Ultrasonic seaming apparatus |
US4399491A (en) * | 1981-02-27 | 1983-08-16 | Gte Products Corporation | Folded edge seal for flashlamp array |
US4588390A (en) * | 1982-06-02 | 1986-05-13 | Rotopack Gmbh | Means and method for production of box blanks, boxes formed therefrom and apparatus useful therewith |
SE454683B (en) * | 1984-01-02 | 1988-05-24 | Tetra Pak Ab | Ultrasonic Sealing Device |
US4618516A (en) * | 1985-09-12 | 1986-10-21 | Branson Ultrasonics Corporation | Ultrasonic welding of thermoplastic workpieces |
-
1986
- 1986-03-18 GB GB868606640A patent/GB8606640D0/en active Pending
-
1987
- 1987-03-11 CA CA000531785A patent/CA1272632A/en not_active Expired - Lifetime
- 1987-03-16 AU AU70060/87A patent/AU587110B2/en not_active Ceased
- 1987-03-17 MY MYPI87000311A patent/MY100498A/en unknown
- 1987-03-17 NZ NZ219656A patent/NZ219656A/en unknown
- 1987-03-17 AT AT87302249T patent/ATE64347T1/en not_active IP Right Cessation
- 1987-03-17 PT PT84499A patent/PT84499B/en not_active IP Right Cessation
- 1987-03-17 BR BR8701211A patent/BR8701211A/en not_active IP Right Cessation
- 1987-03-17 ES ES87302249T patent/ES2022332B3/en not_active Expired - Lifetime
- 1987-03-17 EP EP87302249A patent/EP0238295B1/en not_active Expired - Lifetime
- 1987-03-17 DE DE8787302249T patent/DE3770665D1/en not_active Expired - Lifetime
- 1987-03-18 KR KR1019870002490A patent/KR960009595B1/en not_active IP Right Cessation
- 1987-03-18 US US07/027,375 patent/US4750955A/en not_active Expired - Fee Related
- 1987-03-18 JP JP62063648A patent/JPS62235004A/en active Pending
- 1987-03-18 MX MX005611A patent/MX171390B/en unknown
- 1987-03-18 CN CN87102204A patent/CN1009447B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8606640D0 (en) | 1986-04-23 |
KR870008686A (en) | 1987-10-20 |
AU587110B2 (en) | 1989-08-03 |
CN87102204A (en) | 1987-09-30 |
KR960009595B1 (en) | 1996-07-23 |
US4750955A (en) | 1988-06-14 |
DE3770665D1 (en) | 1991-07-18 |
PT84499A (en) | 1987-04-01 |
BR8701211A (en) | 1987-12-22 |
ATE64347T1 (en) | 1991-06-15 |
MY100498A (en) | 1990-10-30 |
MX171390B (en) | 1993-10-22 |
EP0238295B1 (en) | 1991-06-12 |
AU7006087A (en) | 1987-09-24 |
JPS62235004A (en) | 1987-10-15 |
ES2022332B3 (en) | 1991-12-01 |
CN1009447B (en) | 1990-09-05 |
EP0238295A2 (en) | 1987-09-23 |
PT84499B (en) | 1989-11-10 |
NZ219656A (en) | 1989-01-06 |
EP0238295A3 (en) | 1988-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1272632A (en) | Carrying handle for a can carton | |
US5345747A (en) | Ultrasonic sealing apparatus and method | |
CA2035574C (en) | Method and apparatus for continuosuly forming sealing and filling low density polyethylene bags at high speed | |
AU739136B2 (en) | Apparatus and methods for securing articles to containers | |
JPH04242503A (en) | Method and device to package article | |
CA1275771C (en) | Closure device for an injection moulding apparatus | |
CA1282313C (en) | Apparatus for folding and closing a blank of wrapping material around an article to be packaged | |
CA1217373A (en) | Device for folding and sealing the head of a folded carton | |
ES8605429A1 (en) | Packaging machine and method. | |
EP0333390A2 (en) | Ultrasonic heat sealing device | |
US4563860A (en) | Method and apparatus for enveloping articles with a plastic foil or the like | |
JPH0776018B2 (en) | Improved high capacity continuous packaging seam and selvage folding and stitching apparatus and method | |
US4501104A (en) | Multipacks of containers | |
JPH1170600A (en) | Method and device for automatically pasting heat-shrinkable plastic film on bottom of box-shaped container | |
US4980014A (en) | Apparatus for applying wrap-around labels to containers | |
ITBO950094A0 (en) | METHOD FOR EQUIPMENT FOR WELDING THE OVERLAPPING FLAPS OF A FILM IN HEAT-SEALABLE MATERIAL IN PACKAGING MACHINES | |
US3508376A (en) | Heat sealing of plastic trays | |
CA2054977A1 (en) | Method and apparatus for applying wrap-around labels to containers | |
EP0058652B1 (en) | A method and an apparatus for packaging ice cream articles in individual wrappings | |
US4702060A (en) | Adjustable packaging device | |
US5147270A (en) | Equipment for folding and joining boxes made from flat or basically flat materials | |
DE69603058D1 (en) | Apparatus and method for forming a multi-layer endless belt for the production of food packaging, and the belt and packaging thus produced | |
US4559092A (en) | Sealing lids to tray-like containers | |
US6520899B1 (en) | Method and device for feeding blanks | |
JPH03212306A (en) | Device to package article automatically |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |