Single reciprocating dynamic balancer for a double action stampi

Metal deforming – Including interrelated tool-mover and blankholder-mover

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Details

72452, 100254, 100282, 83615, 74603, B21J 918

Patent

active

051368757

ABSTRACT:
A double action mechanical press, especially for cupping operations in which an outer slide is provided within which an inner slide is reciprocally mounted on a common crankshaft. According to the present invention, a single dynamic balancer, out of phase from both the inner and outer slides, is provided on the crankshaft in order to counterbalance the inertial forces generated by the inner and outer slides during press operation.

REFERENCES:
patent: 2357557 (1944-09-01), Sherman et al.
patent: 2610524 (1952-09-01), Maussnest
patent: 3450038 (1969-06-01), Kraft et al.
patent: 3611918 (1971-10-01), Marsh
patent: 4674357 (1987-06-01), Sugawara et al.
patent: 4757734 (1988-07-01), Portmann
patent: 4890524 (1990-01-01), Brown et al.

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