Press

Details Press Press

1976-10-05

1977-12-27

Keenan, Michael J.

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

72456, 100289, B21J 912

Patent

active

040647331

ABSTRACT:
A press comprises a plunger mounted for reciprocations, one die rigidly fixed to the frame and the other die secured to a slide mounted for reciprocations in the frame guides for closing and opening the dies. The press is provided with a mechanism for clamping the dies during stamping which comprises a nut-screw kinematic couple. One member of the couple is rigidly connected to the slide and the other member, which performs the rotary motion, supports two adjoining discs, one disc being rigidly connected to said member and the other disc being connected to said member by means of a self-locking thread for helical movement relative to the first disc under the action of inertia forces for clamping the dies during stamping, and there is provided a drive for returning the second disc to the initial position.
The disclosed press, according to the invention, has an improved efficiency with reduced power consumption as compared to prior art presses.

REFERENCES:
patent: 1760432 (1930-05-01), Murray
patent: 3035514 (1962-05-01), Harvanek
patent: 3111895 (1963-11-01), Kraft et al.
patent: 3668921 (1972-06-01), Budman et al.
patent: 3881343 (1975-05-01), Ducate

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