Unit load wrapping with uniform wrap tension along the periphery

Details Unit load wrapping with uniform wrap tension along the periphery Unit load wrapping with uniform wrap tension along the periphery

1984-07-30

1986-03-04

Sipos, John

Package making

Methods

Wrapping contents including cover forming

53 64, 53229, 53441, 53553, 53556, 53586, B65B 1100

Patent

active

045733058

ABSTRACT:
Apparatus and method for wrapping a resiliently stretchable film wrap around a group of articles stacked on a pallet, with the film wrap tensioned to a desired tension, by feeding the film wrap along a feed path from supply rolls to a wrapping station, with tension rollers placed serially along the feed path such that the film wrap is coupled for movement with the surface of each tension roller, the tension rollers being driven so that the surface speeds of the serially located roller surfaces differ from one another in order to stretch and tension the film wrap to a given tension, and the stretched and tensioned film wrap being applied to the stacked articles with essentially uniform tension in the film wrap around the periphery of the unit load.

REFERENCES:
patent: 3596434 (1971-08-01), Zelnick
patent: 3739547 (1973-06-01), Brevko et al.
patent: 3884016 (1975-05-01), Bostrom
patent: 4167841 (1979-09-01), Camp
patent: 4313288 (1982-02-01), Tassi et al.
patent: 4413463 (1983-11-01), Lancaster

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