Folding machine and control

Details Folding machine and control Folding machine and control

1978-04-06

1979-09-11

Burr, Edgar S.

Sheet-material associating

Associating or disassociating

Sheet associating

270 5, 270 61R, B65H 4514

Patent

active

041672658

ABSTRACT:
Each section of a buckle sheet feed folding machine is driven by a silicon controlled rectifier (SCR) controlled DC motor. The speed of the first section is infinitely variable by means of a rheostat in the SCR control. A signal related to the speed of the first section is applied to all subsequent SCR controls such that the speed of all fold sections will follow changes made to the speed of the first section. Each section also includes a rheostat to vary the relative speed between that section and the first. A switch is provided at each subsequent section in order to disconnect the first section speed signal and apply an independent control signal.

REFERENCES:
patent: 2294620 (1942-09-01), Kiessling
patent: 3305716 (1967-02-01), Wigington
Advertising Circular for Baumfolder Division of Bell & Howell Co.; 3-23-64.

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