| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding mold which can carry out stable molding by preventing a fall in resin temperature by suppressing the transmission of the heat of a gate nozzle and a manifold, wherethrough a molten resin passes, to a manifold plate and a manifold back plate surrounding them. SOLUTION: The injection molding mold 1 includes the manifold 2, the manifold plate 7 and the manifold back plate 11 which surround the manifold 2 with a space s held between them, the gate nozzle 20 which keeps the base end side supported by the manifold 2 and penetrates the space s and penetrates a through hole 8 formed in the manifold plate 7, a band heater h which is wound around the periphery of the nozzle 20, a nozzle backup ring 32 arranged between the base end side of the gate nozzle 20 and the interior of the through hole 8 of the manifold plate 7, and a heat-resistant, heat-insulation ring 30 held between the flange 27 (base end side) of the gate nozzle 20 and the nozzle backup ring 32. COPYRIGHT: (C)2008,JPO&INPIT
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