Control system for synchronizing combination press line

Details Control system for synchronizing combination press line Control system for synchronizing combination press line

1982-05-27

1985-01-08

Truhe, J. V.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Synchronizing or phasing control

318 72, 318 73, 318 70, 318654, 318655, H02P 546

Patent

active

044929013

ABSTRACT:
A control system for synchronizing a combination press line comprised of a transfer press and a double-action press.
The transfer press is set as a master press and the double-action press as a slave press following the transfer press in operation.
The transfer and double-action press each has a synchro coupled to respective drive shafts for detecting an angular position of each press. A comparator is provided for comparing signals from both synchros and generating a signal corresponding to a difference between signals from both synchros. The output signal from the comparator is fed only to a motor for the double-action press for controlling the speed of the motor, thus enabling the double-action press to follow the transfer press in operation.

REFERENCES:
patent: 2619733 (1952-12-01), Horton et al.
patent: 3073997 (1963-01-01), Tagliasacchi
patent: 3199439 (1965-08-01), Danly
patent: 3557686 (1971-01-01), Sapolsky
patent: 3621348 (1971-11-01), Uchida et al.
patent: 4314185 (1982-02-01), Schneider et al.

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