Deceleration method and apparatus for a moving bolster for a pre

Details Deceleration method and apparatus for a moving bolster for a pre Deceleration method and apparatus for a moving bolster for a pre

1990-06-29

1992-06-16

Bilinsky, Z. R.

Tool changing

With control means energized in response to activator...

72446, 72448, 483 28, 83563, 100918, 91454, B21J 1308, B23Q 3155

Patent

active

051215381

ABSTRACT:
A method and apparatus for changing dies on a moving bolster for a press including a control circuit in combination with a cam-actuated deceleration valve. A ramp is located at a predetermined location along a path for the moving bolster. Upon reaching the ramp location when the bolster is moving toward the press, the deceleration valve is actuated to inhibit and shut off a flow of air to air-operated motors on the bolster. Thereupon, the moves to a stop at a predetermined location relative to the press.

REFERENCES:
patent: 4433620 (1984-02-01), Kiyosawa
patent: 4630536 (1986-12-01), Shah

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