| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing an injection-molded product and an injection molding apparatus capable of efficiently cooling components (a core, an insert, or the like) in a die to quicken cooling of an injection molding die and to shorten a molding cycle. SOLUTION: The method for manufacturing the injection-molded product including a cylindrical first insert 3 with a first vent hole formed at one end, and a second insert 2 having a second vent hole formed to communicate with the first vent hole, comprises a first process for allowing the first vent hole and the second vent hole to communicate with each other and performing mold clamping; a second process for filling molten resin; a third process for blowing air to the first vent hole and the second vent hole to cool the inner surface part of the first insert 3; a fourth process for stopping the air; a fifth process for releasing connection between the first vent hole and the second vent hole; a sixth process for discharging a molded product; and a seventh process for cooling the outside surface of the first insert 3 with air blasted from the second vent hole for aeration. COPYRIGHT: (C)2010,JPO&INPIT |
