Capacitance control system for pneumatic punch press feeders

Details Capacitance control system for pneumatic punch press feeders Capacitance control system for pneumatic punch press feeders

1979-03-14

1981-07-14

Meister, J. M.

Cutting

Tool engages work during dwell of intermittent workfeed

Work feed means controlled by means mounted on tool or tool...

83250, 83277, 226150, 226162, B65H 1736

Patent

active

042779979

ABSTRACT:
An improved multi-stroke control system for a pneumatically operated feeder for punch presses and the like; such system including means to charge and discharge a pneumatic capacitance. The pneumatic capacitance is adapted to be charged in response to the initiation of a first operative cycle of the feeder and to be discharged in response to the completion of said first cycle; said discharge being adapted to initiate a second operative cycle of said feeder. Once triggered the feeder may execute a number of successive operative cycles, the particular number being dependent on the effective volume of said pneumatic capacitance.

REFERENCES:
patent: 2803335 (1957-08-01), Powers
patent: 3038645 (1962-06-01), Nordlof
patent: 3846997 (1974-11-01), Leis
patent: 4140261 (1979-02-01), Scribner

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