Auxiliary device for injection mold

The invention relates to an auxiliary device for an injection mold, and belongs to the technical field of injection molds, the auxiliary device comprises a machine body, an upper mold core and a lower mold core are arranged in the machine body, the upper mold core and the lower mold core are buckled to form a mold cavity for molding an injection molding part, and a gas-assisted needle is arranged on the upper mold core; the gas-assisted needle is communicated with a gas supply system outside the machine body, the gas supply system is used for providing gas with a certain pressure value, and the gas-assisted needle impacts the deformation part of the injection molding part, so that the deformation quantity of the injection molding part is reduced. The injection molding device has the effect of improving the molding quality of the injection molded part. 本申请涉及一种用于注塑模具的辅助装置，属于注塑模具技术领域，包括机体，所述机体内设置有上模芯和下模芯，所述上模芯和下模芯扣合形成用于注塑件成型的模腔，所述上模芯上设置有气辅针，所述气辅针与机体外的供气系统连通设置，供气系统用于提供一定压力值的气体通过气辅针冲击在注塑件的变形处、以减小注塑件的形变量。本申请具有提高注塑件