Pneumatic-hydraulic driving device for the knockout mechanism as

Details Pneumatic-hydraulic driving device for the knockout mechanism as Pneumatic-hydraulic driving device for the knockout mechanism as

1983-09-12

1985-06-25

Hershkovitz, Abraham

Cutting

Means to drive or to guide tool

With simple rectilinear reciprocating motion only

60545, 605471, 60591, 60593, 60594, B26D 512, B60T 702

Patent

active

045246602

ABSTRACT:
An improved pneumatic-hydraulic driving device for the knockout mechanism associated with the slide of a press-machine wherein the device serves to actuate the knockout mechanism in a controlled manner to provide cushioning motion during punching of the work, and knocking out motion after punching to permit removal of the punched work by a transfer machine, with the device being particularly useful in the fabrication of printed circuit plates wherein the device serves to decrease cycle-time of fabrication and increase quantity of production.

REFERENCES:
patent: 4147179 (1979-04-01), Miura
patent: 4182360 (1980-01-01), Neff
patent: 4288987 (1981-09-01), Grullmeier

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