Equipment for covering stacked goods with shrinkable hoods

Details Equipment for covering stacked goods with shrinkable hoods Equipment for covering stacked goods with shrinkable hoods

1981-07-02

1984-11-13

Heinz, A. J.

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

53241, B65B 910

Patent

active

044817541

ABSTRACT:
Apparatus for pulling hoods made of shrinkable foil over stacks of wares comprising a supply spool, a continuous, flattened foil sleeve having a free openable end wound upon the supply spool, mobile gripping means for seizing the free end of the sleeve and for drawing the sleeve from the supply spool, support means for contacting and guiding the external surface of the drawn sleeve, spreading means supported by the support means and receivable within the free end of the sleeve for engaging and spreading apart the opposed walls of the drawn sleeve, a welding and cutting device for subsequently welding a cross-seam in the spread apart sleeve at a location on the sleeve remote from the free end and for subsequently severing the sleeve at a location adjacent to the cross-seam, thereby forming a newly formed separated hood having a spread apart open end and a sealed end while also providing the undetached portion of the sleeve with a newly formed, spread apart free end, the open end of the hood being seized by the mobile gripping means for subsequent placement over a stack of goods, the mobile gripping means being subsequently engagable with the newly formed, opened free end of the sleeve for drawing additional sleeve from the supply spool.

REFERENCES:
patent: 3792565 (1974-02-01), Goransson
patent: 3895480 (1975-07-01), Lombardo
patent: 3925964 (1975-12-01), Birkenfeld

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