Title:
DISCHARGER FOR WORKPIECE OF PRESS
Document Type and Number:
Japanese Patent JPS57152332
Kind Code:
A
Abstract:
An improved workpiece ejecting system for presses includes an ejector piston hydraulically driven in response to reciprocation of the press slide in a manner whereby the motion of displacement of the ejector piston corresponds to the motion of displacement of the press slide during the stroke thereof, and the extent of displacement and velocity of the ejector piston are proportional to the corresponding characteristics of the slide. Ejector piston displacement is achieved by the flow of hydraulic fluid to and from the ejector piston chamber during reciprocation of the press slide through its total stroke. Ejector pins of various lengths are selectively associated with the press tooling and ejector piston to provide for varying the length of the workpiece ejecting stroke. Displacement of the ejector piston in the ejecting direction can be stopped prior to the slide reaching the end of its return stroke to provide a dwell in ejector pin displacement to facilitate workpiece feeding and removal with respect to the press tooling.
Inventors:
RUISU FURANSHISUKON KIYARIERI
Application Number:
JP1953282A
Publication Date:
September 20, 1982
Filing Date:
February 09, 1982
Export Citation:
Assignee:
GULF & WESTERN MFG CO
International Classes:
B21J13/14; B21D45/04; (IPC1-7): B21D45/04; B30B15/02
Previous Patent: JPS57152331
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