Patent ID: 6418767
Filing Date: 2002-07-16
Classification: B21H

Abstract:
A round die type form rolling apparatus comprising:a base; a first die moving block for supporting a first round die, said first die moving block being slidably mounted on said base; a second die moving block for supporting a second round die that is to be disposed opposite the first round die, said second die moving block being slidably mounted on said base to cause the second round die to move toward and away from the first round die; a push mechanism for pushing said second die moving block; a pressure plate mounted slidably on said base for supporting said push mechanism; a plurality of beam shafts each having a first end fixed to said first die moving block and a second end fixed to said pressure plate; and motion transmitting means connected between said pressure plate and said second die moving block; wherein said second die moving block is slidable along said beam shafts at a location between said first die moving block and said pressure plate; and further wherein said push mechanism is operated to push said second die moving block over a distance in a first direction while said motion transmitting means cause said first die moving block and said pressure plate to move over the same distance in a second direction opposite to the first direction in response to the movement of said second die moving block in the first direction to cause the first and second round dies to move toward one another and to roll the work.