| 摘要 |
PROBLEM TO BE SOLVED: To continuously mold resin molded products having undercut portions inside of the products. SOLUTION: A pair of slide cores 6 is arranged in movable-side mold plates 4 so as to slide on a movable-side receiving plate 5 and cavity blocks 7 are connected to the cores. In a pair of facing inner slide cores 11, supporting portions 11a are incorporated in a fixed-side mold plate 2 movably in a mold opening and closing direction and in a vertical direction, tips face a cavity 8 having bosses 11b fitting into undercut portions 9a of the molded product 9 formed inside the molded product 9. A center core 12 having a tapering portion is secured to the fixed-side receiving plate 3 and the tip enters the inside of an inner slide core 11 so as to be sandwiched. Pushing pins 13 arranged in the cavity blocks 7 are biased by coil springs 14 and push and press the inner slide core 11 in a closing direction. COPYRIGHT: (C)2008,JPO&INPIT
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