Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...
Patent
1981-05-20
1983-07-26
Godici, Nicholas P.
Manufacturing container or tube from paper; or other manufacturi
Control means energized in response to activator stimulated...
Responsive to work material, the product or means engaging...
493196, 493204, 493926, B31B 2302, B31B 2314
Patent
active
043952526
ABSTRACT:
Bags are made from an elongated synthetic-resin tube by an apparatus having an endless conveyor having a transport path extending from an upstream cutting/welding station through a stacking station and a flattening station to a downstream punching station. This conveyor has a plurality of platforms having predetermined lengths in the transport direction and spaced apart by gaps. The tube is fed continuously in the transport direction to the upstream cutting/welding station that periodically transversely cuts through the tube and simultaneously forms upstream of each cut a transversely weld for subdividing the tube into a succession of bag blanks. The stacker includes a transversely reciprocal needle bar including at least one heated blocking needle and a transversely reciprocal stripper bar. The upstream end of each bag blank is pierced by the needles as it is cut off the tube, with the downstream portion of each bag blank lying on one of the conveyor platforms. Periodically the stripper bar is moved upwardly to strip an entire stack of bag blanks off the needles. A flattening device engages each of the bag blanks as it is cut free from the tube and presses it down against the stack on the platform. A gripper carriage is displaceable and has a holding element displaceable vertically so that this holding element can press the stack down against the conveyor as the conveyor is stepped to move this stack down to a punching station.
REFERENCES:
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patent: 3908522 (1975-09-01), Bender
patent: 3970508 (1976-07-01), Gossie
patent: 4083747 (1978-04-01), Rochla
patent: 4268346 (1981-05-01), Achelpohl
patent: 4308021 (1981-12-01), Achelpohl
Dubno Herbert
Godici Nicholas P.
Ross Karl F.
Rowan Kurt
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