Study on Ring Shape Chain Once Shaped Die

摘要

The ring shape chain was shaped by twice shape at two set die at present technology of works. It should be improved in structure. At first, the bar, which was passed through a shaped ring, was orientation on the upper punch, and the elasticity upper punch and side pressure block were used in die, the bar was bended into U shape, then, the side pressure block will pressure the open ends of U shape bar, at last, a ring chain was shaped at the die. The structure of this kind of die is not complex, but, it can reduce a shape process and a shape die, also reduce a half labor time. This die has high dependability, simply use and has extremely extend value.