| 摘要 |
PURPOSE:To simplify the constitution of driving system and as well as to automate the mold opening at an undercut part by a method wherein an arbitrary number of slide cores are slid along a conical guide face and, at the same time, a stopper means, by which the stroke of said sliding is limited, is provided. CONSTITUTION:A female mold 1a is provided in a vertical driven movable mold 1. In addition, a guide face 2a, which is a upward convergent conical hole, is provided in a fixed mold 2. Slide cores 4, which are arranged so as to come into contact with the conical hole-like guide face 2a, are guided by a conical core guide 5 so as to slide to the direction of the generating line of the cone as being brought into sliding contact with the conical hole-like guide face 2a. Further, the rising sliding stroke of the slide cores 4 is limited by a core stopper 6. On the core stopper 6, a slide bar 6c, which fits to a guide hole 5a, a stopper cap 6b, against which the upper ends of the slide cores 4 abut, and a stopper flange 6c, which limits the rising of the slide bar 6a, are integrally formed. |
