Package making – With contents treating – Reshaping
Patent
1993-06-09
1995-03-14
Coan, James F.
Package making
With contents treating
Reshaping
53528, 53544, 53589, B65B 2708, B65H 3130
Patent
active
053967526
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an apparatus for forming bundles of boxes produced by folding-glueing or stitching machines and packing them by a strap.
It is known that the boxes made by folding-glueing or stitching machines, i.e. the boxes not yet prepared to receive the material they will contain and which therefore are completely folded forming a substantially flat body, are packed in bundles by a strap generally made of plastics.
The above cited packing of the boxes has various problems deriving from the need to obtain a firm packing, both for transporting the bundles and storing them.
The above mentioned problems arise mainly due to the fact that the boxes to be packed have different thickness sometimes either in length or width and sometimes in both directions, whereby the stacking thereof must be accomplished in a proper way to obtain a bundle of boxes having a substantially constant height both in length and in width.
A further problem to be solved to obtain a firm packing as hereinabove pointed out derives from the fact that the stacked boxes must be overlapped to each other as correctly as possible, i.e. perfectly lined-up along the height of the pack that must have no protruding parts or portions which would prevent a correct application of the blocking strap thus making the packing of the boxes scarcely reliable.
Machines for forming bundles of boxes as hereinabove mentioned are already known but however they have remarkable drawbacks relating both to quality and reliability of the packings and or the operating possibilities that they offer and that force the user to manually operate.
A first kind of known machine essentially consists of a station for receiving the boxes made by a folding-glueing or stitching machine, in which stacks of boxes are successively formed, each of them consisting in as many boxes as a half of those forming a bundle.
Said stacks are fed to a station subsequent to the receiving one and more precisely said subsequent station is fed with a pair of stacks at a time there being provided a means which prepares said pair of stacks of boxes to form the bundle.
Said means essentially consists in a plane for supporting the stacks of boxes and tiltable by an angle of 180.degree. so that it receives a first stack of boxes on one surface and is rotated of 180.degree. to receive the second stack of boxes on the other surface.
Then an adequate means causes said stacks to exit from the station containing them and thus they opposedly overlap to each other as one of the stacks is rotated of 180.degree. with respect to the other.
The overlapped stacks are taken by an operator who must manually accomplish the alignment in height and/or width i.e. the so-called matching of the boxes and obviously this manual operation causes the operating cycle time of the apparatus to increase as well as the operating costs.
Once the stacked boxes have been matched they are forwarded, again manually, to a station for applying the strap to form the bundle package.
The drawbacks of this known machine are clear both for costs as above mentioned, and due to the fact that the manual handling of the boxes does not ensure to obtain a correct packing.
Another kind of known apparatus has substantially the same drawbacks of the previous one as also therein many operating steps, particularly the matching of boxes and the forwarding thereof to the strapping station, are manually accomplished.
Also by this second kind of traditional apparatus there is formed at first a bundle of boxes consisting of two stacks of opposedly overlapped boxes and this bundle is manually formed and sent again manually to the station for applying the strap after the matching of the boxes.
Thus the drawbacks are the same and affect in the same negative way the operating costs and the manufactured product.
U.S. Pat. No. 3,568,591 discloses an apparatus for compacting and tying bundles of flat objects, with the bundles being fed along a straight horizontal path on a conveyor belt.
The object of the present invention is to provide an apparat
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patent: 3568591 (1971-03-01), Dunlap
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patent: 4870807 (1989-10-01), Palamides et al.
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Dallanegra Mario
Mastropasqua Angelo
Zava Graziano
Coan James F.
Mega Service Di Angelo Mastropasqua & C. S.N.C.
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