Wrapping machine and method for use with polyethylene wrap

Details Wrapping machine and method for use with polyethylene wrap Wrapping machine and method for use with polyethylene wrap

1997-10-22

1999-09-07

Johnson, Linda

Package making

Wrapping machines

Cover-wiping passage or pocket for initial wrap

53234, 533759, 533762, 533873, B65B 1128

Patent

active

059468840

ABSTRACT:
A machine and method for wrapping cylindrical workpieces such as rolls of bathroom tissue and paper towel. The machine includes a workpiece infeed conveyor, a wrapping film feeder, a rotating carousel having a plurality of pockets, an oscillating exit conveyor, a discharge conveyor, and a sealing conveyor. A piece of wrapping film supplied by the wrapping film feeder is perforated and burst into a single sheet. The film sheet and a workpiece are directed into a pocket in the rotating carousel whereby the sheet is banded around the periphery of the workpiece by a clamping plate, underfolder plate, and brush secured by heat sealing the film sheet to itself. The banded workpieces are ejected from the rotating carousel onto an exit conveyor which passes the workpieces to a discharge conveyor which in turn conveys the workpieces through a sealing conveyor. Folding mechanisms for folding the wrapping film sheet extending beyond the ends of the workpieces are disclosed. The method of wrapping is also disclosed.

REFERENCES:
patent: 2110815 (1938-03-01), Parsons
patent: 2301016 (1942-11-01), Cannard
patent: 2363751 (1944-11-01), Schultz et al.
patent: 2383664 (1945-08-01), Malhiot
patent: 2642707 (1953-06-01), Sandberg
patent: 2822652 (1958-02-01), Taggart et al.
patent: 3899865 (1975-08-01), Revaz
patent: 4183191 (1980-01-01), Focke
patent: 5373681 (1994-12-01), Shigeta

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