Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1997-03-31
1998-07-07
Culver, Horace M.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
1986261, 1986266, B65B 906, B65G 1514, B65G 1544
Patent
active
057750688
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Packaging machines for groups of vertically standing discs, e.g. biscuits, are known, for example, from the Swiss Patent Nos. 376 047 and 581 047. The spaced-apart groups are advanced by driving plates on a table. A packaging material band is used to form a tube around the groups and is sealed with a longitudinal sealing seam. Transverse sealing seams are formed downstream between the groups, and the individual packages are separated. In order to prevent individual discs in the group from being displaced or tilted inside the tube, metal holders are inserted into the spaces between the groups by means of chains circulating along the side, which holders are pulled out just prior to the transverse sealing station. These devices are not very flexible, since a change in format for the biscuits and the group lengths requires that the chains be replaced each time by other chains with matching form and spacing for the holders.
SUMMARY OF THE INVENTION
It is the object of the invention at hand to avoid the above disadvantage. The above and other objects are accomplished according to the invention by the provision of an arrangement for an endless belt, comprising: an endless belt having an inside adapted to be driven by a transport wheel and an outside; and elastic fingers attached to the outside of the endless belt, the elastic fingers being substantially evenly spaced from one another, each elastic finger having a free end and another end that constitutes a fastening point to the endless belt, and each elastic finger having a curved shape between the free end and the fastening point and presenting a clamping region between the free end and the fastening point.
According to a further aspect of the invention there is additionally provided a packaging machine including at least two belts as defined above, the packaging machine further comprising: feed means for continuously feeding groups of vertically standing discs at regular intervals; a device for forming a tube from packaging material around the continuously fed groups, with the two belts being arranged on opposite sides of the tube; a longitudinal sealing device for forming a longitudinal sealing seam on the tube; a transverse sealing device downstream of the longitudinal sealing device for forming a transverse sealing seam on the tube of packaging material between adjacent ones of the groups of vertically standing discs; and a transport wheel assigned to each belt for synchronously driving the belts with a forward feed for the packaging tube, wherein a number of the elastic fingers of each belt press the packaging tube into gaps between the groups of vertically standing discs and an additional number of elastic fingers push the packaging tube against the vertically standing discs of the respective groups.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention is explained in the following with the aid of the drawings. Shown are in:
FIG. 1 A diagrammatic view from the side of a packaging machine;
FIG. 2 A view from above of the machine;
FIG. 3 A view from the side of a supporting device;
FIG. 4 A view from above of the supporting device;
FIG. 5 A longitudinal cut through a belt with guide;
FIGS. 6 and 7 Cuts along the line VI--VI in FIG. 5 for two variants of the belt;
FIG. 8 A perspective view of a package;
FIG. 9 A detail of the supporting device;
FIG. 10 A cut along the line X--X in FIG. 9 and
FIGS. 11/12 A diagrammatic representation of an adjustment device.
DETAILED DESCRIPTION OF THE INVENTION
A horizontal bag forming, filling and sealing machine 1 is shown diagrammatically in FIGS. 1 and 2. On a horizontal table 2 with a longitudinal slot 3, groups 4 of adjoining, vertically standing discs, for example biscuits 5 are supplied. For that, regularly spaced pairs of drivers 6, which are attached to a circulating chain 7, extend through the slot 3. Next to the downstream end of the chain 7, a tube 9 is formed around the group 4 with a packaging material foil 8, which tube has a longitudinal fin-type seam 10 on t
REFERENCES:
patent: 3179237 (1965-04-01), Ninneman
patent: 4064987 (1977-12-01), Rowan
patent: 4798281 (1989-01-01), Egger
patent: 4905349 (1990-03-01), Townsend
patent: 5052166 (1991-10-01), Ziegler et al.
patent: 5090557 (1992-02-01), Carmen
patent: 5109654 (1992-05-01), Suga
patent: 5154281 (1992-10-01), Garner
patent: 5177935 (1993-01-01), Jones et al.
patent: 5255495 (1993-10-01), Kovacs
patent: 5269119 (1993-12-01), Tolson
Kern Werner
Strasser Thomas
Walz Theo
Culver Horace M.
SIG - Schweizerische Industrie-Gesellschaft
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