CORE COOLING STRUCTURE OF AN INJECTION MOLD FOR PREVENTING DEFORMATION OF PRODUCTS BY QUICKLY AND EQUALLY COOLING A CORE

摘要

PURPOSE: A core cooling structure of an injection mold is provided to cool down left and right sides of a core at equal temperature by supplying cooling water to cool from a central portion of the core and to improve production efficiency by shortening a withdrawal cycle. CONSTITUTION: A core cooling structure of an injection mold having a core(10) with a cooling water passage(20) to cool and harden an injected article(A) is composed of a cooling water supply unit(30,30a) for communicating with both the cooling water passages symmetrical to each other about a central portion of the core and feeding the cooling water and a cooling water discharge port(40,40a) communicating with the cooling water passage of both ends of the core and discharging the cooling water passing through the cooling water passage formed in the center. The core cooling structure executes a quick cooling by cooling down from the central portion of the core with high temperature by the cooling water.