| 摘要 |
PROBLEM TO BE SOLVED: To provide a simultaneous injection molding apparatus positioning a valve sleeve member or a valve pin member with respect to a cavity gate by properly separating different molten bodies and simplifying manufacture, assembly, and operation of the apparatus. SOLUTION: The simultaneous injection molding apparatus includes: a manifold 112; a nozzle 116 connected to the manifold; a sleeve 124 which is arranged in the nozzle and forms an outer molten body channel between the nozzle and the sleeve; a pin 126 which is arranged in the sleeve and forms an inner molten body channel between the sleeve and the pin; and a nozzle chip which has a positioning part allowed to contact with the sleeve. The sleeve is operated so as to open/close the communication of a molten body between the outer molten body channel and the cavity gate 138. The pin is operated so as to open/close the communication of the molten body between the inner molten body channel and an opening part of the sleeve. The positioning member positions the sleeve with respect to the cavity gate along an operation range of the sleeve. COPYRIGHT: (C)2009,JPO&INPIT
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