| 摘要 |
PROBLEM TO BE SOLVED: To provide a temperature control part efficiently cooling a long and narrow core pin, facilitating the designing and machining of a metal mold, and reducing metal mold manufacturing costs and molding man-hours, solving problems of the extension of a shot time due to bad cooling efficiency and often causing improper communication due to improper machining and deposit, in actual operations, and additionally needing much more labor in designing and machining for placing a cooling circuit on a slide core compared to a fixed core because of a metal molding structure though the cooling circuit is placed using conventional techniques in manufacturing metal molds that need the installation of the cooling circuit as much as possible even when the long and narrow core pin with a small area is the slide core. SOLUTION: A fork end port cooling water mouthpiece 1 is formed by adding a branch mouthpiece as a water drain side mouthpiece 4 to a cooling water mouthpiece used as an existing temperature control part. An exclusive cooling pipe 2 is inserted/fixed into a water feed side mouthpiece 3 inner wall to form the temperature control part of the circulation type cooling water mouthpiece having a dual pipe structure and being integrated for feeding/draining of water. COPYRIGHT: (C)2004,JPO
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