B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 37/00 (2006.01) B21D 28/14 (2006.01) B21D 28/32 (2006.01) B26D 5/16 (2006.01)
Patent
CA 2073204
A noise reducing structure of slide-cam die, wherein in the slide-cam die comprising, a passive cam having an inclined passive face of a fixed inclination angle .alpha., and an actuating cam having an inclined actuating face of the same inclination angle .alpha. as that of the inclined passive face of the passive cam, and contacting the inclined actuating face of the actuating cam to the inclined passive face of the passive cam to drive the passive cam for pressing a work; a roller is disposed rotatably at the side of the passive cam, and a speed control cam plate having, at a location of the actuating cam facing the roller, a cam face having, at a position where an upper die contacts to the roller at the beginning of descending, a low-speed inclination angle .beta. which is larger than the inclination angle a of the inclined faces of the passive cam and the actuating cam and close to a right angle, and a succeeding medium-speed inclination angle .gamma. which is slightly larger than the inclination angle a of the inclined faces of the passive cam and the actuating cam, is disposed such that, after the medium-speed inclination angle .gamma. of the cam plate has contacted to the roller, the inclined actuating face of the actuating cam contacts to the inclined passive face of the passive cam for pressing work.
Marks & Clerk
Umix Co. Ltd.
LandOfFree
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