Package making – Plural layer package material – Lining preformed receptacle
Patent
1982-09-07
1985-06-11
Coan, James F.
Package making
Plural layer package material
Lining preformed receptacle
53386, 493100, 493907, B31B 702
Patent
active
045220123
ABSTRACT:
A bag inserter machine having pinch rolls for automatically unwinding a perforated bag roll one bag length, bag opening and separating assemblies to cooperatively grippingly engage the leading bag of the bag roll and separating it therefrom along perforations and then opening the bag, an inserter assembly movable into the opened bag for moving the opened bag into a case on a conveyer and cuff the upper portion of the bag over the upwardly extending case top flaps, and controls to stop a case on a conveyer in a position to have a bag inserted therein, stop the drive to the pinch rolls after unwinding the bag roll a bag length, then the bag opening and separating assemblies to grippingly engage the bag to separate it from the bag roll, then open the bag, thereafter operate the inserter assembly to insert and cuff the bag and retract the inserter assembly and then allow the conveyer to move another case to have a bag inserted therein, and automatically continue the cycle of operation.
In a second embodiment, in place of an inserter assembly, a hopper assembly may be provided to drop a weighed charged of product into the opened bag and then the bag opening and separating assemblies operated to release the opened bag to fall into a case on the conveyer or the weight of product in the bag, strip the bag from the last mentioned assemblies.
In the third embodiment, the bag separating assembly is moved transversely relative the bag opening assembly as said assemblies move longitudinally together with a bag clamped therebetween to facilitate unblocking of the bag so that it will open as the opening assembly moves away from the separating assembly.
REFERENCES:
patent: 3579948 (1971-05-01), Lerner
patent: 3939624 (1976-02-01), Gidewall et al.
patent: 4079663 (1978-03-01), Heller
patent: 4083293 (1978-04-01), Goldstein
patent: 4142453 (1979-03-01), Gidewall et al.
Bemis Company Inc.
Coan James F.
Johnson Clayton R.
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