| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding die, wherein even in the case of a type of allowing core insert pins to be engaged with each other for forming an undercut shape, external power is not required. SOLUTION: Two movement units 80, 180 move accompanying the opening/closing of an injection molding die 30, and, by this movement, the core insert pins 20 and 120 are put in/out from a molding space 34 in such a manner that they are not interfered with each other. In such a state that the injection molding die 30 is perfectly opened, i.e., in such a state that a fixed side insert 42 and a movable side insert 62 are perfectly separated, and the fixed side movement unit 50 and the movable side movement unit 70 are not in contact with each other at all and further a fixed side movement unit 150 and a movable side movement unit 170 are not in contact with each other at all as shown in Fig.1 (and not shown here) and Fig.4, the two core insert pins 20, 120 are perfectly separated (put out) from the molding space 34 as shown in Fig.7(a). COPYRIGHT: (C)2009,JPO&INPIT
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