| 摘要 |
PURPOSE: A gap between injection holes of an injection nozzle is minimized to reduce the size of the injection nozzle, and a plurality of valve pins are operated by a piston. CONSTITUTION: A manifold(3) to distribute resin to an upper fixing plate of a mold(1) is provided. A piston(8) and a cylinder(7) formed with an injection nozzle are installed in lower part of the upper fixing plate. A valve pin to open and close an injection hole of the injection nozzle is connected to the lower part of the piston. A resin injecting device comprises a resin hole(10) connected to the resin hole of the manifold. A plurality of inserting holes(14) to insert the injection nozzle is provided.
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