US 3812820 A
A machine for application of adhesive or other liquid, of the type having a rotating wheel which is rolled upon the material on which liquid is to be applied, the wheel having one or more application apertures on its circumference, the machine having means for carrying liquid from a reservoir to said aperture or apertures, characterized in that the means for carrying the liquid to the aperture or apertures of the wheel comprises a conduit system rotating with the wheel.
Claims available in
Description (OCR text may contain errors)
States Patet 1191 Ronneberg May 28, 1974 1 MACHINE FOR APPLICATION FOR 2,828,553 4/1958 Jarosz 118/3 ADHESIVE OR OTHER LIQUID 2,896,569 7/1959 Ferguson et al 1 18/3 3,152,011 10/1964 Gerard 118/211 Inventor: Hemline Ronneberg, Blegdamsvej 3,271,800 9/1966 Allard 118/3 x 28-32, Copenhagen, Denmark 3,509,853 5/1970 Hartbauer et al l18/411  Flled' 1971 Primary Examiner-John P. McIntosh  Appl. No.: 131,380 Attorney, Agent, or Firm-Albert C Nolte, Jr.; Ed-
ward B. Hunter; Charles B. Hamburg  Foreign Application Priority Data Apr. 6, 1970 Denmark 1703/70  AI 3STRACT A machme for applicatlon of adheslve or other l1qu1d, 52 U.S. c1 118/3, 118/259, 118/411 of the type having a g wheel which rolled 51 1m. (:1. B05c 5/02 P the material which hquid he PP the 53 Field f Search 118/3, 5 21 1, 5 411 wheel having one or more application apertures on its circumference, the machine having means for carrying 5 References Cited liquid from a reservoir to said aperture or apertures, UNITED STATES PATENTS characterized in that the means for carrying the liquid 1 976 016 10/1934 G e noug 11 /3 UX to the aperture or apertures of the wheel compnses a 2,268,876 1 1942 Kagley 118/3 condu't System rotating the wheel 2,811,943 11/1957 Ferguson et al. 118/3 7 Claims, 10 Drawing Figures MACHINE FOR APPLICATION FOR ADHESIVE OR OTHER LIQUID The invention relates to a machine for application of adhesive or other liquid, of the type having a rotating wheel which is rolled upon the material on which liquid is to be applied, the wheel having one or more application apertures on its circumference, the machine having means for carrying liquid from a reservoir to said aperture or apertures.
A machine of the said type is known (US. Pat. Specification No. 3,091,216) in which the wheel comprises a cylindrical metal shell having two rows of apertures. In contact with the inner side of the cylindrical shell there is arranged a liquid delivery member having two apertures. Each time these apertures in the delivery member are in register with two apertures in the metal shell liquid will be delivered from the delivery member to the said two shell apertures, and such liquid will be applied to thematerial, for instance paper, on which the liquid is to be applied.
It is an object of the invention to provide animproved machine of the said type, especially a machine with which it is possible to apply liquid according to different patterns. The machine according to the invention is characterized in that the means for carrying the liquid to the apertures of the wheel comprises a conduit system rotating with the wheel.
The apertures may be arranged in one or more units, each only comprising a fraction of the wheel circumference, and each having a separate delivery conduit for liquid, in each such conduit a valve means arranged to be opened at the latest concurrently with the unit coming in contact with the material on which liquid is to be applied. Each unit will apply liquid in a definite pattern, and the pattern may be varied within wide limits.
The machine may have sensing means to sense, during rolling of the wheel upon said material, if such material is present, at one or more positions along the circumference of the wheel, and to operate, according to such sensing, a valve means in a corresponding delivery conduit in such a manner that said valve is kept closed if such material is not present. Hereby is prevented application of liquid on a machine part carrying such material or accumulation of liquid on the wheel surface around the apertures.
In the accompanying drawing a wheel for a machine according to the invention is shown.
FIG. 1 shows the wheel, seen in axial direction, partly in a sectional view.
FIG. 2 the wheel seen from the side,
FIG. 3 an inner part of the wheel, seen in axial directron,
FIG. 4 the inner part shown in FIG. 3, seen from the side and partly in a sectional view,
FIG. 5 a stamp member of the wheel shown in FIG. I, seen at right angles to its stamping surface,
FIG. 6 the stamp member shown in FIG. 5, in a sectional view along line 6-6 in FIG. 5,
FIG. 7 the stamp member shown in FIG. 5, in a sectional view along line 77 in FIG. 5,
FIG. 8 a distributor member of the wheel shown in FIG. I, for supporting the stamp member shown in FIG. 5, seen in the same direction as the stamp member in FIG. 5,
FIG. 9 the distributor head shown in FIG. 8, in a sectional view along line 9-9 in FIG. 8, and
FIG. 10 the distributor member shown in FIG. 8, in a sectional view along line l0-I0 in FIG. 8.
The applicator wheel comprises eight stamp members or glue plates I, each fastened to a distributor member or glue head 2 by means of screws. The glue heads 2 are, by means of screws 4 fastened to an inner part or a glue wheel 6.
Each unit consisting of a glue plate and a glue head has two glue needles or sensing members 3'which are movable inwards against a spring 7 which is fastened by means of a screw 8. Each glue needle projects through a sleeve 9.
The glue wheel has plane surface portions for the glue heads 2. In the centre of each such surface portion opens a radial glue delivery conduit 21. Each such conduit 21 is connected to two inclined conduits 22 in the glue head 2. The conduits 22 provide connection to a through bore 23 in which a glue needle 3, a spring 7 and a screw 8 is arranged. From a narrow portion of these bores 23 extend transverse bores 24 from which extend bores 25 opening into longitudinal grooves 26 in the plane outer surface of the glue head. When the glue plate has been fastened to the glue head2, the spaces delimited by the grooves 26 and the glue plate 1 are, via bores 27, connected with longitudinal grooves 28 in the printing or stamping surface of the glue plate, these grooves beeing positioned within raised portion 29 of said stamping surface.
When using the applicator wheel glue is caused to flow into and through the conduits 21 to the glue heads 2. Further flowing is normally prevented by the glue needles 3 which are made as spring loaded valves. The wheel is caused to rotate and to roll upon a material upon which glue is to be applied, for instance a band of paper or cardboard, which is moved continuously. During such rolling the glue needles will contact the material before the surface of the relevant glue plate contacts the material, and the needles will open so that glue will flow through the conduits 24, 25, grooves 26, bores 27 to the grooves 28. The raised portions 29 will then contact the said material and glue in the grooves 28 will be applied to said material. Further rolling will raise the glue plate I from the said material, and the glue needles will close and prevent glue from flowing to the relevant glue plate.
The embodiment shown and described is only to be considered as an example, as many modifications are possible within the scope of the invention. On one shaft two or more applicator wheels may be arranged. The delivery of glue or other liquid may take place through a conduit in the shaft for the wheel. The glue heads may be replaced by suitable recesses in the circumference of the inner part 6, and the separate glue plates 1 may be replaced by a ring member surrounding the inner member and having the necessary apertures. The glue needles may be replace by such sensing means which do not contact the glue, but cooperate with a diaphragm delimiting a chamber for glue or other liquid and transmitting the sensing movement to a valve arranged in such chamber. By this arrangement it is obtained that such valve parts and parts in connection therewith which contact the glue will not dry up.
1. A machine for application of adhesive or other liquid, comprising a wheel, means for mounting said wheel for rotation, a plurality of liquid dispensing portions located along the wheel circumference, singular and separate conduit means for each of said portions and extending radially within and rotatable with said wheel for carrying liquid from a reservoir to said portions, each of said portions including head means having respective means communicating with said singular separate conduit means and comprising plural conduit means, each said head means having an outer surface, glue plate means having apertures therein removably attached to each of said outer surfaces, said glue plate means and said surfaces having means for mounting said glue plate means to said surfaces and for securing and removing the same such that different glue plates may be interchangeably received, said apertures comprising means for passing liquid from said plural conduit means therethrough each said outer surfaces.
2. A machine according to claim 1, wherein said plural communicating means includes valve means for controlling the flow of liquid therethrough, said valve means including means for opening said valve means at the latest, concurrently with said plate means coming in contact with the material on which liquid is to be applied.
3. A machine according to claim 2, wherein said means for opening said valve means comprises means for contacting the material on which liquid is to be applied, said contacting means being separate from and adjacent the apertures.
4. A machine according to claim 2, wherein said valve means include means communicating with at least two apertures for controlling the flow of liquid thereto.
5. A machine according to claim 2, wherein said aperture defining means defines a plurality of apertures and said valve means includes a plurality of valves each having separate means communicating with at least two apertures for controlling the flow of liquid thereto.
6. A machine according to claim 1, wherein there is provided means for removably mounting said head means on said wheel.
7. A machine according to claim 1, wherein said apertures define at least one groove shaped aperture.