Pneumatic feeder for punch presses

Details Pneumatic feeder for punch presses Pneumatic feeder for punch presses

1985-08-09

1986-10-28

Hornsby, Harvey C.

Advancing material of indeterminate length

By intermittent material-mover

Comprising reciprocating or oscillating material-mover

137 82, 226134, 226150, B65H 2018

Patent

active

046193901

ABSTRACT:
A pneumatic feeder for punch presses and the like wherein a novel circuit and arrangement is incorporated in the feeder control system for causing the stock gripping means on the reciprocating feed slide to be released in response to the completion of each intermittent stock feeding stroke of the slide. This circuit and control arrangement includes a fluid motor means that is controlled by a pilot operated supplementary valve means which in turn is controlled by an air jet means that is arranged and adapted to sense the arrival of the feed slide at a predetermined position.

REFERENCES:
patent: 3038645 (1962-06-01), Nordlof
patent: 3159170 (1964-12-01), Callan
patent: 3447555 (1969-06-01), Jenney
patent: 3994311 (1976-11-01), Walle
patent: 4051987 (1977-10-01), Scribner
patent: 4059130 (1977-11-01), Cohen
patent: 4160518 (1979-07-01), Scribner
patent: 4290541 (1981-09-01), Scribner
patent: 4310114 (1982-01-01), Scribner

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