Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work cooling means
Patent
1988-05-05
1990-04-03
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work cooling means
53253, 156515, 156538, B65B 4330
Patent
active
049137654
ABSTRACT:
An apparatus is disclosed for making bags or sacks from a continuous tubular film of thermoplastic material. The continuous tubular film is moved intermittently in a downward direction to a welding device, a cutter below the welding device, and a turret-like rotary conveyor below the cutter. A bag length is received by grippers on the rotary conveyor before it is welded and cut. When thus received the bag length is welded and cut, and the conveyor indexed by one step to present succeeding grippers to the tube. The tube is then advanced another bag length so that the succeeding bag is received in the succeeding pair of grippers. The process is repeated with succeeding bags. The bags on the conveyor are successively delivered to a transfer station where the grippers are opened to release the bags.
REFERENCES:
patent: 3607574 (1971-09-01), Satake
patent: 3948019 (1976-04-01), Doring et al.
patent: 4108300 (1978-08-01), Hayase
patent: 4353198 (1982-10-01), Koppe
patent: 4534158 (1985-08-01), McClosky
patent: 4975888 (1976-08-01), Jones
Huwelmann Helmut
Tetenborg Konrad
Simmons David
Windmoller & Hoscher
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