Collapsible web wrapping apparatus

Details Collapsible web wrapping apparatus Collapsible web wrapping apparatus

1978-07-26

1980-11-25

Sipos, John

Package making

Methods

Applying a partial cover

53441, 53556, 53587, B65B 1104

Patent

active

042350620

ABSTRACT:
A process for automatically making a spiral wrapped unitary package with a single web of stretchable material to form a netting overwrap. A series of loads, each containing a plurality of units are fed one at a time onto a turntable adjacent a film dispenser with the leading edge of the film from the film dispenser being collapsed in width and held by a clamp mechanism mounted on the turntable. The collapsed film web is spirally wrapped around the load to one end of the load and spirally wrapped around the load to the other end to complete a first cycle defining an overwrap netting configuration with a plurality of symmetrical angular spaces. The turntable is then rotated at least 90.degree. to offset the collapsed film web and a second cycle is repeated with the film web being spirally wrapped to overlie part of the originally spirally wrapped film web and reduce the angularly shaped spaces formed by the first cycle. On the return the collapsed film web is tucked under a portion of the collapsed film wrapped around the load.

REFERENCES:
patent: 3788199 (1974-01-01), Jato
patent: 4077179 (1978-03-01), Lancaster
patent: 4136501 (1979-01-01), Connolly
"The Digest"--Sep. 1977--by Infra-Pak.
"The Digest"--Dec. 1977--by Infra-Pak.

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