Process and apparatus for forming stacks of bags held...

Details Process and apparatus for forming stacks of bags held... Process and apparatus for forming stacks of bags held...

B - Operations, Transporting

65

H

270/53

B65H 29/00 (2006.01) B31B 19/98 (2006.01)

Patent

CA 2037554

ABSTRACT PROCESS AND APPARATUS FOR FORMING STACKS OF BAGS HELD TOGETHER BY CLAMPS Stacks of bags are formed in that consecutively fed flattened bags having at least one stacking hole each are cyclically pushed onto at least one stacking pin. To eliminate the need for a blocking of the stacks of bags to each other by welding means or heated severing knives, at least one stacking pin which at its bottom end has an enlarged bottom head is inserted into a stacking station in step with the stacking cycles and is held in said stacking station. A striker or a sliding pusher pushes the bags onto said stacking pin when the bags have been fed by a conveyor. A top head member is inserted into the pusher before the last bag for each stack is pushed onto the stacking pin and said top head member is forced onto the stacking pin by the pusher in such a manner that the top head member is positively and/or non-positively held on the stacking pin and the stack is held on the stacking pin between the head and the head member provided at the ends of the pin.

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