VENTING MECHANISM OF MOLD

摘要

PROBLEM TO BE SOLVED: To provide the venting mechanism of a mold receiving no restriction with respect to an installation place or the number of installations and capable of efficiently sucking and discharging gas even if the cavity has a complicated shape or there is a part formed deeply as compared with other part such as a part becoming a boss part in a product or the like. SOLUTION: In the venting mechanism of the mold, a core pin 3 protruded into the cavity 2 of the mold 1 is provided and a gas suction passage 5 is formed by providing a clearance not permitting the penetration of a molten resin between the outer periphery of the core pin 3 and the inner peripheral surface of a core pin arranging hole 4 and a venting passage 6 communicating with the gas suction passage 5 to reach the outside of the mold 1 is provided in the mold 1.