MOLDING DIE, MOLDING DIE SYSTEM, AND COMPRESSION MOLDING METHOD

摘要

A molding die (10) is provided with: a cavity (80) that is formed across a mold dividing surface and in which a molten resin is filled; a gate seal device (70) capable of blocking a gate (82) through which the molten resin flows in the cavity; a frame plate (20) that has a plurality of piece accommodation holes (24) opening into the cavity and constitutes a frame compression surface (23) with an end surface thereof facing the cavity at parts other than the plurality of piece accommodation holes; a plurality of movable pieces (30, 60) that is accommodated in the plurality of piece accommodation holes and of which end surfaces facing the cavity constitute divided compression surfaces (33, 63), the divided compression surfaces being displaceable in an advancing direction toward the cavity and a retracting direction away from the cavity; a plurality of piece driving devices (30, 65) that separately drives the divided compression surfaces of the plurality of movable pieces; an entire compression plate (50) that commonly supports the ends of the frame plate and the plurality of movable pieces on a side opposite to the cavity and integrally advances the frame plate and the plurality of movable pieces when advancing; and an entire driving device (55) that drives the entire compression plate.