Presses – Methods
Patent
1995-01-19
1996-11-12
Gerrity, Stephen F.
Presses
Methods
72426, 83 82, 83157, 83165, 100218, B30B 1532
Patent
active
055729266
ABSTRACT:
An apparatus and method for unloading presses with a nonhydraulic press unloader. The apparatus generally includes a support frame, a reciprocating tray, a tray arm, a link arm, an actuating arm, and an attachment arm. The support frame has a pair of support frame members having top surfaces. A tray roller, for supporting the reciprocating tray, is rotatably mounted to each end of the support frame member. The tray arm is slidably engaged with the top surface of one of the support frame members and is pivotally attached to the link arm. The midsection of the tray arm is pinably connected to the reciprocating tray. The actuating arm is pivotally connected to the other end of the link arm and to the support frame. A pickup roller is rotatably attached to the actuating arm near its midsection. A release roller is rotatably attached to the actuating arm also near the midsection and adjacent the pickup roller. As the press ram rises, the arms draw the tray in between the gap presented by the separating die halves. The workpieces are dropped onto the tray. Just prior to the ram reaching top dead center, the tray is released and retracts under the force of gravity. The mechanism is then reset for the next ram stroke.
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