| 摘要 |
PURPOSE: An auto pressing die is provided to drive a die without using a die exchange equipment and without dissipating a power by connecting directly an upper and lower dies to both end of a forward and backward member for forwarding and backtracking a piston rod. CONSTITUTION: An auto pressing die comprises a forward and backward member(1), an upper die(2) and a lower die(3), a hydraulic pump, and a forward and backward controller. The upper die(2) and the lower die(3) are connected and opened/closed directly to both end of the forward and backward member for forwarding and backtracking a piston rod by a hydraulic pressure variation. The forward and backward member is composed of a piston and the piston rod and use a hydraulic pressure. A guide post, a brake stopper and a guide rail are formed integrally or separately at the forward and a backward machine. An actuator or a hydraulic controller is provided for controlling a drive speed of the die. The forward and backward controller is provided for distributing a pressure from the hydraulic pump and for forwarding and backtracking the forward and backward machine(1).
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