MOLD DEVICE FOR INJECTION MOLDING

摘要

A mold device (S) for injection molding for forming a molding by injecting a molten resin material into a cavity (5) formed between a fixed die (10) of a fixed side mold (1) and a movable die (20) of a movable side mold (2) movable in the forward and backward directions. The fixed die (10) and the movable die (20) are formed of an aluminum alloy or a zinc alloy, and the mold (2) comprises the movable die (20), a backup plate (24) supporting the movable die (20), a spacer block (23), and a movable side mounting plate (22). Support bushes (25) are installed along the forward and backward movement direction of the mold to connect the backup plate (24) to the movable side mounting plate (22), and the support bush (25a) is disposed on an extension extending from a gate (4) in the forward and backward movement direction of the mold.