Patent ID: 6984120
Filing Date: 2006-01-10
Classification: B29C

Abstract:
1. An electric direct-acting die clamping unit of an injection molding machine, comprising: a base; a back plate fixed at one of the ends of the base; a stationary platen fixed at the other end of the base and configured to hold a stationary die; a movable platen configured to hold a movable die and arranged on the base such that a front surface of the movable platen faces the stationary platen; a ball screw having a threaded rod and a nut, the tip of the threaded rod being fixed at a back surface of the movable platen; a housing configured to rotatably support the nut; an elastic member connecting between the back plate and the housing and contractable in the directions of clamping and unclamping the dies; and a motor rotating the nut of the ball screw.