| 摘要 |
PURPOSE:To obtain a molded piece having an undercut part by a comparatively simple structure wherein a pair of block dies are pulled down under the cavity of a fixed die to open both sides of the molded piece. CONSTITUTION:After molding in a cavity, a movable die 6 is opened, a driving plate 13 is moved, a fixed mold 1 is separated from a fixed plate 12 through a push rod 19, a spring 16, the block dies 7, 7 are pulled down from the cavity of the fixed die 1 and both sides of the molded piece 3 are opened. An ejector plate 22 is moved, the molded piece 3 having both sides opened is projected from the lower surface and the molded piece 3 is deformed elastically and removed from the undercut molding part 5 of the fixed die 1. |
