Shock dampening systems for presses

Details Shock dampening systems for presses Shock dampening systems for presses

B - Operations, Transporting

26

F

164/103, 267/65

B26F 1/40 (2006.01) B21D 28/20 (2006.01) B23D 31/00 (2006.01)

Patent

CA 1063925

SHOCK DAMPENING SYSTEMS FOR PRESSES Abstract of the Disclosure A hydraulic fluid shock dampening system is disclosed for a shearing press to minimize shock and vibration imposed on the press following breakthrough of the material being sheared by cutting die components carried by the press bed and slide. The system includes cylinder and piston units interposed between the press bed and slide each providing a variable-volume fluid receiving chamber from which fluid under pressure is expelled during movement of the slide toward the bed to achieve a shearing operation. A flow sensitive shutoff valve is responsive to accelerated movement of the slide upon breakthrough to block fluid flow from the chambers and thus restrain further slide movement toward the press bed.

293352

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