Package making – With cover-adjunct application or formation – By printing
Patent
1976-02-12
1976-10-19
McGehee, Travis S.
Package making
With cover-adjunct application or formation
By printing
53384, 279 4, 279109, B65B 4326
Patent
active
039863220
ABSTRACT:
Bag placing apparatus for use in conjunction with automatic bag filling equipment of the type that fills valve type bags through a horizontal spout that is received within the bag valve when the bag is properly positioned for filling on the spout; such bag filling equipment cyclicalling alternately between fill and filled bag discharge intervals respectively initiated automatically by placement of an empty bag on the spout and upon completion of the filling of such bag.
The bag placing apparatus includes a placer provided with vacuum bag holders and a relatively movable snapper. An articulated support inclusive of a slide mounting and cam guides are provided which concurrently upon initiation of the filled bag discharge interval commences sequentially (a) to separate an empty bag from a horizontal stack of bags, (b) to grip the bag by the snapper, (c) to move the placer and the bag held thereby toward the spout, while the snapper moves relative to the placer to open the valve, and (d) to move the bag to receive the spout within the valve after the bag has been turned to change the valve from a vertical to a horizontal orientation.
Upon completion of placement of the bag on the spout, the fill interval is initiated whereupon the snapper is caused to open and release its grip on the bag until it next grips a bag as previously described, and the placer is caused to travel reversely the previously described path thereof to cause the same to hold by vacuum the next bag of the stack.
The synchronism of the placer and snapper movements with the cyclic operation of the bag filler or packer is pneumatically effected.
REFERENCES:
patent: 2922612 (1955-12-01), Bulls et al.
patent: 3287879 (1966-11-01), Miller
Breidenthal Robert E.
McGehee Travis S.
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