Screw press having a shifting coupling and a continuously rotati

Details Screw press having a shifting coupling and a continuously rotati Screw press having a shifting coupling and a continuously rotati

1984-12-14

1986-08-19

Husar, Francis S.

Metal deforming

With means to drive tool

Including screw-actuated tool support

72 30, 72444, 100289, B21J 918

Patent

active

046062173

ABSTRACT:
The invention is a shifting mechanism for a screw press. The screw press includes a shifting coupling for the press spindle, a drive mechanism for continuously rotating a flywheel, a coupling mechanism operatively located between the flywheel and the shifting mechanism which is dependent upon angular deceleration and is controlled for the purpose of actuating the coupling mechanism. The shifting mechanism comprises a hydraulically actuatable shifting coupling. A hydraulically prestressed valve is located between the reaction mass and a rotating coupling portion that is connected to the flywheel. The coupling mechanism is controlled through the use of a hydraulic line and the prestressed valve is affected by the hydraulic pressure medium in that line acting upon the coupling mechanism.

REFERENCES:
patent: 4207763 (1980-06-01), Huydts et al.

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