Patent ID: 8230712
Filing Date: 2012-07-31
Classification: B21D,B26D,B26F,Y10T

Abstract:
1. A punching device comprising: a lower part including a die adapted to support a workpiece thereon; an upper part including a punch support attached magnetically to said die; a punch supported movably on said punch support so as to be slidable against said die to cut the workpiece; and a separating mechanism including a driving unit mounted rotatably on one of said upper and lower parts and rotatable relative to said upper and lower parts, and a pressing unit mounted movably on said one of said upper and lower parts and associated with said driving unit in such a manner that when an external force is applied to said driving unit for rotating said driving unit relative to said upper and lower parts, the external force can be transferred from said driving unit to said pressing unit to allow said pressing unit to press against the other of said upper and lower parts in order to overcome a magnetically attracting force between said punch support and said die to thereby separate said upper and lower parts from each other.