| 摘要 |
PROBLEM TO BE SOLVED: To overcome such a problem that it is hard to easily and rapidly replace worn-out and damaged parts in a conventional hot-runner type injection mold using a gate valve. SOLUTION: This injection mold is equipped with: a fixed-side mold 11 in which a recess 12 is formed in a part of a parting surface FP, a supporting block 14 which is removably fixed to the recess 12 of the mold 11 via attachment/detachment means 16-18 and forms a part of the parting surface FP of the mold 11, and a nozzle tip 21 which is removably fitted into the supporting block 14 from the other side of the parting surface FP and in which a gate 22 facing the parting surface FP is opened at a tip. The nozzle tip 21 is held in a state of being sandwiched between the supporting block 14 and a nozzle holder 19 which is inserted into the supporting block 14 via the mold 11, and the gate 22 is opened/closed by using a gate pin 27 which is housed in the nozzle holder 19. COPYRIGHT: (C)2003,JPO
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