Silencing method and silencer device in crank press machine

Details Silencing method and silencer device in crank press machine Silencing method and silencer device in crank press machine

1976-02-26

1977-07-26

Lanham, C.W.

Metal deforming

With means to drive tool

72441, 72450, B21J 920

Patent

active

040374580

ABSTRACT:
This invention provides a method and device for eliminating vibration and for silencing noise caused during operation of a crank-driven press tool. A brake operates on the crank shaft of the press tool from just before to just after the termination of the press stroke, thereby preventing the kinetic energy of the mechanical components and metal mold from being reduced instantaneously to zero and thus preventing the generation of vibration and noise usually occurring during press work in a crank-driven press tool.

REFERENCES:
patent: 3485109 (1969-12-01), Dunlap

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