EP0253981A1 - Device for conveying webs - Google Patents

Device for conveying webs Download PDF

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Publication number
EP0253981A1
EP0253981A1 EP87107132A EP87107132A EP0253981A1 EP 0253981 A1 EP0253981 A1 EP 0253981A1 EP 87107132 A EP87107132 A EP 87107132A EP 87107132 A EP87107132 A EP 87107132A EP 0253981 A1 EP0253981 A1 EP 0253981A1
Authority
EP
European Patent Office
Prior art keywords
pressure
web
fluid
cavity
end walls
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.)
Granted
Application number
EP87107132A
Other languages
German (de)
French (fr)
Other versions
EP0253981B1 (en
Inventor
Roland Grunder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grapha Holding AG
Original Assignee
Grapha Holding AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grapha Holding AG filed Critical Grapha Holding AG
Priority to AT87107132T priority Critical patent/ATE59830T1/en
Publication of EP0253981A1 publication Critical patent/EP0253981A1/en
Application granted granted Critical
Publication of EP0253981B1 publication Critical patent/EP0253981B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/112—Means for varying cross-section
    • B65H2404/1121—Means for varying cross-section for changing diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/185—Rollers composed of several layers easy deformable

Definitions

  • the present invention relates to a device for conveying web-shaped material with a conveyor roller, which has a cylinder jacket and end walls.
  • the conveyor roller of such a device has e.g. in printing or punching machines, the task of always conveying a precisely prescribed length of the material web per working cycle of the machine or per roller revolution. Since these machines, for example specified, can process material webs of different thicknesses, the task arises of being able to convey material web sections of the same length during one machine cycle, even with different material thicknesses.
  • known devices use a driven conveyor roller, which is partially wrapped around by the material web and the material web in front of the conveyor roller is elastically stretched according to its thickness under tension, such that with each revolution of the conveyor roller after it the same length of the said Rotation relaxed material web section is promoted.
  • this procedure is limited by the material properties of the material web.
  • a superposition gear is built into the drive arrangement of the conveyor roller, which superimposes a correction speed, which is dependent on the thickness of the material web, on the main drive.
  • this measure is complex and has the disadvantage that inaccuracies in the form of periodic fluctuations are brought into the drive arrangement of the conveyor roller by the superposition gear.
  • the object of the present invention is to improve a device of the type mentioned at the outset in such a way that it can convey material web sections of the same length during a working cycle with little design effort and without additional tensile stress on the material web and regardless of the material web thickness.
  • a conveyor roller 3 is rotatably mounted in bearings 2 between two parallel end plates 1.
  • the conveyor roller 3 has a penetrating axial shaft 4 which carries at one end a pinion 5 which is connected to a motor which is not shown.
  • Circular end walls 6, which are tightly connected to a cylindrical jacket 7, are firmly connected to the shaft 4.
  • An axial channel 8 is arranged in one end of the shaft 4, which branches in the region of the cavity 9 enclosed by the jacket 7 and whose branches open into the cavity 9. At the outer end of the shaft 4, the channel 8 is through a screw 10 closed. Between the cavity 9 and the end walls 6 other ichtungsmaschine'11 D are arranged.
  • the right end of the shaft 4 passes through a section of smaller diameter diametrically through the pressure cylinder 12 of a hydro-pneumatic pressure transducer 15 and is rotatably supported therein with pressure-tight bearings 13.
  • the channel 8 In the area of the pressure chamber 14 of the pressure cylinder 12, the channel 8 has a branch opening into the pressure chamber 14, so that the pressure chamber 14 communicates with the cavity 9.
  • a pneumatic cylinder 16 Connected axially to the pressure cylinder 12 is a pneumatic cylinder 16 which can be acted upon by a pressure medium source (not shown) with a gaseous pressure medium via a line 17.
  • a pressure medium source not shown
  • a gaseous pressure medium via a line 17.
  • In the line 17 are means to selectively build up and maintain a certain excess pressure in the cavity 9.
  • the end walls 6 and the shaft 4 are preferably made of steel, whereas the cylinder jacket 7 consists of a material which can be deformed elastically within a pressure range. Light metal alloys are particularly suitable for this. If the cavity 9 is pressurized by the pressure transducer 15, the diameter of the conveyor roller 3 increases (dash-dotted line in FIG. 2). With increasing diameter, the length of the material section conveyed per roller revolution increases. The thinner the material thickness, the greater the overpressure in the cavity 9 is chosen or vice versa, such that the radius from the shaft axis to the center of the material web (neutral fiber) remains constant.
  • the cylinder jacket 7 has annular ribs 18 spaced apart from one another on the inside. Under pressure, the outside of the cylinder jacket 7 receives one corrugated shape, as indicated by dash-dotted lines in Fig. 3, which gives the material web a more stable lateral guidance.

Abstract

A web transporting apparatus wherein the web is trained over the external surface of a radially expandible elastic shell which is connected with two end walls to form a roll and to define an internal compartment which is filled with a pressurized hydraulic fluid. The pressure of hydraulic fluid is regulated in dependency upon the thickness of the web which is being transported so that the neutral zone of the web is invariably located at the same distance from the axis of the roll. The pressure of fluid in the compartmnt is regulatable by a hydropneumatic transducer wherein a hydraulic cylinder and piston unit admits pressurized hydraulic fluid into the compartment and the pressure of fluid in the hydraulic cylinder and piston unit is regulated by a pneumatic cylinder and piston unit which receives pressurized gaseous fluid by way of an adjusting valve. Regulation of the outer diameter of the shell compensates for variations in the thickness of the transported web. The material of the shell is selected in such a way that it is capable of undergoing a purely elastic deformation within a desired range which depends upon the range of thicknesses of webs which are to be transported in the apparatus.

Description

Die vorliegende Erfindung bezieht sich auf eine Einrichtung zum Fördern von bahnförmigem Material mit einer Förderwalze, die einen Zylindermantel und endseitige Stirnwände aufweist.The present invention relates to a device for conveying web-shaped material with a conveyor roller, which has a cylinder jacket and end walls.

Die Förderwalze einer solchen Einrichtung hat z.B. in Druck-oder Stanzmaschinen die Aufgabe, pro Arbeitszyklus der Maschine bzw. pro Walzenumdrehung stets eine genau vorgeschriebene Länge der Materialbahn zu fördern. Da diese beispielsweise angegebenen Maschinen Materialbahnen verschiedener Dicke verarbeiten können, stellt sich die Aufgabe, mit der Förderwalze auch bei verschiedenen Materialdicken stets gleich lange Materialbahnabschnitte während eines Maschinentaktes fördern zu können. Zur Lösung dieser Aufgabe benutzen bekannte Einrichtungen eine angetriebene Förderwalze, die von der Materialbahn teilweise umschlungen und die Materialbahn vor der Förderwalze entsprechend ihrer Dicke unter Zugspannung elastisch gedehnt wird, derart, dass mit jeder Umdrehung der Förderwalze nach dieser stets die gleiche Länge des um die genannte Drehung relaxierten Materialbahnabschnittes gefördert wird. Diesem Vorgehen sind indessen durch die Stoffeigenschaften der Materialbahn Grenzen gesetzt..The conveyor roller of such a device has e.g. in printing or punching machines, the task of always conveying a precisely prescribed length of the material web per working cycle of the machine or per roller revolution. Since these machines, for example specified, can process material webs of different thicknesses, the task arises of being able to convey material web sections of the same length during one machine cycle, even with different material thicknesses. To solve this problem, known devices use a driven conveyor roller, which is partially wrapped around by the material web and the material web in front of the conveyor roller is elastically stretched according to its thickness under tension, such that with each revolution of the conveyor roller after it the same length of the said Rotation relaxed material web section is promoted. However, this procedure is limited by the material properties of the material web.

Bei weiteren bekannten Einrichtungen ist in die Antriebsanordnung der Förderwalze ein Überlagerungsgetriebe eingebaut, welches dem Hauptantrieb eine von der Dicke der Materialbahn abhängige Korrekturdrehzahl überlagert. Diese Massnahme ist jedoch aufwendig und hat den Nachteil, dass durch das Überlagerungsgetriebe Ungenauigkeiten in der Form periodischer Schwankungen in die Antriebsanordnung der Förderwalze gebracht werden.In other known devices, a superposition gear is built into the drive arrangement of the conveyor roller, which superimposes a correction speed, which is dependent on the thickness of the material web, on the main drive. However, this measure is complex and has the disadvantage that inaccuracies in the form of periodic fluctuations are brought into the drive arrangement of the conveyor roller by the superposition gear.

Die vorliegende Erfindung stellt sich die Aufgabe, eine Einrichtung der eingangs erwähnten Art derart zu verbessern, dass sie mit geringem konstruktivem Aufwand und ohne zusätzliche Zugbeanspruchung der Materialbahn und unabhängig von der Materialbahndicke stets gleich lange Materialbahnabschnitte während eines Arbeitszyklus fördern kann.The object of the present invention is to improve a device of the type mentioned at the outset in such a way that it can convey material web sections of the same length during a working cycle with little design effort and without additional tensile stress on the material web and regardless of the material web thickness.

Erfindungsgemäss wird diese Aufgabe gelöst durch die kennzeichnenden Merkmale des Anspruches 1.According to the invention, this object is achieved by the characterizing features of claim 1.

Anhand der beiliegenden schematischen Zeichnung wird die Erfin- dung beispielsweise erläutert. Es zeigen:

  • Fig. 1 einen Längsschnitt durch die Förderwalze einer Einrichtung,
  • Fig. 2 einen Schnitt längs der Linie II-II in Fig. 1 und
  • Fig. 3 eine gleiche Darstellung wie Fig. 2 eines zweiten Ausführungsbeispiels einer Förderwalze.
E is rfin- dung example explained with reference to the accompanying schematic drawing. Show it:
  • F ig. 1 shows a longitudinal section through the conveyor roller of a device,
  • Fig. 2 shows a section along the line II - II in Fig. 1 and
  • Fig. 3 is the same representation as Fig. 2 of a second embodiment of a conveyor roller.

Zwischen zwei parallelen Lagerschildern 1 ist in Lagern 2 eine Förderwalze 3 drehbar gelagert. Die Förderwalze 3 weist eine durchsetzende achsiale Welle 4 auf, welche an einem Ende ein mit einem nicht dargestellten Motor getrieblich verbundenes Ritzel 5 trägt. Fest mit der Welle 4 verbunden sind kreisförmige Stirnwände 6, die dicht mit einem zylindrischen Mantel 7 verbunden sind. In einem Ende der Welle 4 ist ein achsialer Kanal 8 angeordnet, der sich im Bereich des vom Mantel 7 umschlossenen Hohlraums 9 verzweigt und dessen Verzweigungen in den Hohlraum 9 münden. Am äusseren Ende der Welle 4 ist der Kanal 8 durch eine Schraube 10 verschlossen. Zwischen dem Hohlraum 9 und den Stirnwänden 6 sind weitere Dichtungselemente'11 angeordnet. Das rechte Ende der Welle 4 durchsetzt mit einem Abschnitt kleineren Durchmessers diametral den Druckzylinder 12 eines hydro-pneumatischen Druckwandlers 15 und ist in diesem mit druckdichten Lagern 13 drehbar gelagert. Im Bereich der Druckkammer 14 des Druckzylinders 12 weist der Kanal 8 eine in die Druckkammer 14 mündende Verzweigung auf, so dass die Druckkammer 14 mit dem Hohlraum 9 kommuniziert. Achsial an den Druckzylinder 12 schliesst ein pneumatischer Zylinder 16 an, der über eine Leitung 17 von einer nicht dargestellten Druckmediumquelle mit einem gasförmigen Druckmedium beaufschlagbar ist. In der Leitung 17 sind Mittel, um im Hohlraum 9 wahlweise einen bestimmten Überdruck aufzubauen und zu halten. Die Stirnwände 6 und die Welle 4 sind vorzugsweise aus Stahl gefertigt, wogegen der Zylindermantel 7 aus einem innerhalb eines Druckbereiches elastisch verformbaren Material besteht. Hierzu eignen sich insbesondere Leichtmetalllegierungen. Wird der Hohlraum 9 durch den Druckwandler 15 unter Überdruck gesetzt, vergrössert sich der Durchmesser der Förderwalze 3 (in Fig. 2 strichpunktierte Linie). Mit zunehmendem Durchmesser wächst die Länge des pro Walzenumdrehung geförderten Materialabschnitts. Je dünner die Materialdicke, umso grösser wird der Überdruck im Hohlraum 9 gewählt bzw. umgekehrt, derart, dass der Radius von der Wellenachse zur Mitte der Materialbahn (neutrale Faser) konstant bleibt.A conveyor roller 3 is rotatably mounted in bearings 2 between two parallel end plates 1. The conveyor roller 3 has a penetrating axial shaft 4 which carries at one end a pinion 5 which is connected to a motor which is not shown. Circular end walls 6, which are tightly connected to a cylindrical jacket 7, are firmly connected to the shaft 4. An axial channel 8 is arranged in one end of the shaft 4, which branches in the region of the cavity 9 enclosed by the jacket 7 and whose branches open into the cavity 9. At the outer end of the shaft 4, the channel 8 is through a screw 10 closed. Between the cavity 9 and the end walls 6 other ichtungselemente'11 D are arranged. The right end of the shaft 4 passes through a section of smaller diameter diametrically through the pressure cylinder 12 of a hydro-pneumatic pressure transducer 15 and is rotatably supported therein with pressure-tight bearings 13. In the area of the pressure chamber 14 of the pressure cylinder 12, the channel 8 has a branch opening into the pressure chamber 14, so that the pressure chamber 14 communicates with the cavity 9. Connected axially to the pressure cylinder 12 is a pneumatic cylinder 16 which can be acted upon by a pressure medium source (not shown) with a gaseous pressure medium via a line 17. In the line 17 are means to selectively build up and maintain a certain excess pressure in the cavity 9. The end walls 6 and the shaft 4 are preferably made of steel, whereas the cylinder jacket 7 consists of a material which can be deformed elastically within a pressure range. Light metal alloys are particularly suitable for this. If the cavity 9 is pressurized by the pressure transducer 15, the diameter of the conveyor roller 3 increases (dash-dotted line in FIG. 2). With increasing diameter, the length of the material section conveyed per roller revolution increases. The thinner the material thickness, the greater the overpressure in the cavity 9 is chosen or vice versa, such that the radius from the shaft axis to the center of the material web (neutral fiber) remains constant.

Beim Ausführungsbeispiel nach Fig. 3 weist der Zylindermantel 7 innenseitig voneinander distanzierte Ringrippen 18 auf. Unter Überdruck erhält die Aussenseite-des Zylindermantels 7 eine gewellte Form, wie dies strichpunktiert in Fig. 3 angedeutet ist, was der Materialbahn eine stabilere Seitenführung verleiht.In the exemplary embodiment according to FIG. 3, the cylinder jacket 7 has annular ribs 18 spaced apart from one another on the inside. Under pressure, the outside of the cylinder jacket 7 receives one corrugated shape, as indicated by dash-dotted lines in Fig. 3, which gives the material web a more stable lateral guidance.

Claims (5)

1. Einrichtung zum Fördern von bahnförmigem Material mit einer Förderwalze, die einen Zylindermantel (7) und endseitige Stirnwände (6) aufweist, dadurch gekennzeichnet, dass der Zylindermantel (7) innerhalb eines Druckbereichs rein elastisch verformbar ist, dass der Zylindermantel (7) mit den Stirnwänden (6) einen Hohlraum (9) druckdicht umschliesst, der von einer im genannten Druckbereich arbeitenden Druckmediumquelle (12 bis 16) beaufschlagbar ist und dass Mittel vorhanden sind, um im Hohlraum innerhalb des genannten Druckbereichs einen bestimmten Überdruck zu erzeugen und zu halten.1. Device for conveying web-shaped material with a conveyor roller, which has a cylinder jacket (7) and end walls (6), characterized in that the cylinder jacket (7) is purely elastically deformable within a pressure range that the cylinder jacket (7) with the end walls (6) encloses a cavity (9) in a pressure-tight manner, which can be acted upon by a pressure medium source (12 to 16) operating in the said pressure range and that means are available to generate and maintain a certain excess pressure in the cavity within the said pressure range. 2. Einrichtung nach Anspruch 1, dadurch gekenn- zeichnet, dass die Wandstärke des zylindrischen Mantels (7) gleichmässig dick ist.2. Device according to claim 1, characterized labeled in - is characterized in that the wall thickness of the cylindrical casing (7) is uniformly thick. 3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der zylindrische Mantel (7) auf der dem Hohlraum (9) zugewandten Seite voneinander distanzierte Rippen (17) aufweist.3. Device according to claim 1 or 2, characterized in that the cylindrical jacket (7) on the side facing the cavity (9) has spaced apart ribs (17). 4. Einrichtung nach Anspruch 3, dadurch gekenn- zeichnet, dass die Rippen (17) mit regelmässigem gegenseitigem Abstand angeordnet sind.4. A device according to claim 3, characterized labeled in - is characterized in that the ribs (17) are arranged with a regular mutual distance. 5. Einrichtung nach Anspruch 1, dadurch gekenn- zeichnet, dass der Hohlraum (9) durch einen achsial durch eine der Stirnwände (6) geführten Kanal (8) mit der Druckmediumquelle (12 bis 16) verbunden ist.5. Device according to claim 1, characterized labeled in - is characterized in that the cavity (9) (8) is connected to the pressure medium source (12 to 16) by an axially guided through one of the end walls (6) channel.
EP87107132A 1986-07-21 1987-05-16 Device for conveying webs Expired - Lifetime EP0253981B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87107132T ATE59830T1 (en) 1986-07-21 1987-05-16 DEVICE FOR CONVEYING WEB-FORM MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2915/86 1986-07-21
CH2915/86A CH669584A5 (en) 1986-07-21 1986-07-21

Publications (2)

Publication Number Publication Date
EP0253981A1 true EP0253981A1 (en) 1988-01-27
EP0253981B1 EP0253981B1 (en) 1991-01-09

Family

ID=4244484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107132A Expired - Lifetime EP0253981B1 (en) 1986-07-21 1987-05-16 Device for conveying webs

Country Status (6)

Country Link
US (1) US4792076A (en)
EP (1) EP0253981B1 (en)
JP (1) JP2615047B2 (en)
AT (1) ATE59830T1 (en)
CH (1) CH669584A5 (en)
DE (1) DE3767239D1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401886A1 (en) * 1989-05-29 1990-12-12 Stork Screens B.V. Supporting or guiding roller
EP0451890A1 (en) * 1990-03-20 1991-10-16 Stork Screens B.V. Method for the manufacture of a roller, and roller thus obtained
EP0478535A2 (en) * 1990-09-24 1992-04-01 Ickinger, Georg, Dipl.-Ing.- Dr.techn. Polymer coated object, eg roller, pressure cushion etc, with localized adhesion and procedure for its manufacture
DE4117388A1 (en) * 1991-05-28 1992-12-03 Koenig & Bauer Ag ROLLER FOR CARRYING A RAILWAY
EP0621218A2 (en) * 1993-04-21 1994-10-26 Matsushita Electric Industrial Co., Ltd. Roller of variable outer diameter type, and carrying apparatus and method using the same
EP0970807A1 (en) * 1998-07-06 2000-01-12 Heidelberger Druckmaschinen Aktiengesellschaft Roller having a variable diameter
US6802253B2 (en) 1999-11-16 2004-10-12 Maschinenfabrik Wifag Rotational body configuration for web width correction
DE102006042959A1 (en) * 2006-05-17 2007-11-22 Koenig & Bauer Aktiengesellschaft Method for reducing vibrations of rotary cylinder of printing machine, involves changing resonance frequency of cylinder by inserting or diverting of matters into interior of cylinder or from interior of cylinder

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EP0465259B1 (en) * 1990-07-06 1995-01-11 Sumitomo Gomu Kogyo Kabushiki Kaisha Elastic roller for paper feeding
DE4110310A1 (en) * 1991-03-28 1992-10-01 Goebel Gmbh Maschf Rotary belt pulley unit with variable dia. - consists of two belt pulleys, with at least one driven
DE4223900C2 (en) * 1992-07-21 1996-05-15 Roland Man Druckmasch Pull roller
DE4340915A1 (en) * 1993-02-23 1994-08-25 Heidelberger Druckmasch Ag Interchangeable pressure sleeve
DE9319240U1 (en) * 1993-12-15 1994-02-24 Wako Walzen Konstruktion Syste Roller for the pressure treatment of textile webs or the like.
US5845868A (en) * 1997-07-03 1998-12-08 Valmet-Karlstad Ab Apparatus and method for winding paper
US5901918A (en) * 1997-07-03 1999-05-11 Valmet-Karlstad Ab Apparatus and method for winding paper
US20030136643A1 (en) * 2002-01-18 2003-07-24 Lockheed Martin Corporation Dynamically variable diameter, drive roller mounting system for companioned-belt speed synchronization, and a method of operating the same
CN105173861A (en) * 2015-09-11 2015-12-23 苏州爱可姆机械有限公司 Vacuum adsorption roller device
CN117465909B (en) * 2023-12-28 2024-03-12 衡水鑫日升智能输送系统有限公司 Tilting conveying equipment of driving deviation correcting conveying belt and deviation correcting control system thereof

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GB2015695A (en) * 1978-01-02 1979-09-12 Polygraph Leipzig Roller for web tensioning
DE2933775C2 (en) * 1979-08-21 1981-11-05 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Brake roller for tensioning several tapes

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GB2015695A (en) * 1978-01-02 1979-09-12 Polygraph Leipzig Roller for web tensioning
DE2933775C2 (en) * 1979-08-21 1981-11-05 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Brake roller for tensioning several tapes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401886A1 (en) * 1989-05-29 1990-12-12 Stork Screens B.V. Supporting or guiding roller
EP0451890A1 (en) * 1990-03-20 1991-10-16 Stork Screens B.V. Method for the manufacture of a roller, and roller thus obtained
US5133125A (en) * 1990-03-20 1992-07-28 Stork Screens B. V. Method for the manufacture of a roller, and roller thus obtained
EP0478535A2 (en) * 1990-09-24 1992-04-01 Ickinger, Georg, Dipl.-Ing.- Dr.techn. Polymer coated object, eg roller, pressure cushion etc, with localized adhesion and procedure for its manufacture
EP0478535A3 (en) * 1990-09-24 1992-07-08 Georg Dipl.-Ing.- Dr.Techn. Ickinger Polymer coated object, eg roller, pressure cushion etc, with localized adhesion and procedure for its manufacture
DE4117388A1 (en) * 1991-05-28 1992-12-03 Koenig & Bauer Ag ROLLER FOR CARRYING A RAILWAY
EP0621218A2 (en) * 1993-04-21 1994-10-26 Matsushita Electric Industrial Co., Ltd. Roller of variable outer diameter type, and carrying apparatus and method using the same
EP0621218A3 (en) * 1993-04-21 1995-01-18 Matsushita Electric Ind Co Ltd Roller of variable outer diameter type, and carrying apparatus and method using the same.
EP0970807A1 (en) * 1998-07-06 2000-01-12 Heidelberger Druckmaschinen Aktiengesellschaft Roller having a variable diameter
US6802253B2 (en) 1999-11-16 2004-10-12 Maschinenfabrik Wifag Rotational body configuration for web width correction
DE102006042959A1 (en) * 2006-05-17 2007-11-22 Koenig & Bauer Aktiengesellschaft Method for reducing vibrations of rotary cylinder of printing machine, involves changing resonance frequency of cylinder by inserting or diverting of matters into interior of cylinder or from interior of cylinder
DE102006042959B4 (en) * 2006-05-17 2012-06-06 Officine Meccaniche Giovanni Cerutti S.P.A. Method and apparatus for reducing vibrations of a rotating cylinder of a printing machine

Also Published As

Publication number Publication date
ATE59830T1 (en) 1991-01-15
US4792076A (en) 1988-12-20
JP2615047B2 (en) 1997-05-28
JPS6331921A (en) 1988-02-10
DE3767239D1 (en) 1991-02-14
CH669584A5 (en) 1989-03-31
EP0253981B1 (en) 1991-01-09

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