Servo driven draw roll for bag machine

Details Servo driven draw roll for bag machine Servo driven draw roll for bag machine

1988-11-14

1991-03-19

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493194, 493199, 493203, 493204, 226115, B65H 2922

Patent

active

050007270

ABSTRACT:
A machine for the continuous production of plastic bags utilizes a servo drive motor to drive the machines film web draw roll assembly and through a seal roll index gear also to drive a seal roll of the machine in coordination with the servo driven draw roll. Control of the servo motor is through a motion controller receiving inputs form the servo motor.

REFERENCES:
patent: 3431828 (1969-03-01), Crawford et al.
patent: 3722376 (1973-03-01), Wech
patent: 3805683 (1974-04-01), Hook
patent: 3822168 (1974-07-01), Wech
patent: 4070951 (1978-01-01), Bala
patent: 4192705 (1980-03-01), Wech
"Bottomweld Bagmaking Machine", 1982 by Alpine Plastic Machinery Ltd., England.

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