This invention relates to the technical field of vulcanizing injection molds, and particularly to a vulcanizing injection mold and its demolding
system. The vulcanizing injection mold includes an ejector pin
assembly, an upper mold
assembly, a middle mold
assembly, a lower mold assembly, and a mold base assembly. The lower mold assembly has an ejector pin through hole, which includes a material well hole, an inverted conical hole, and a straight cylindrical hole. The ejector pin column includes an inverted conical section and a straight cylindrical section. The end of the straight cylindrical section away from the inverted conical section is vertically and vertically connected to the mold base assembly. When the mold is closed, the inverted conical section is located inside the inverted conical hole. The vulcanizing injection mold can prevent
rubber material from entering the gap between the ejector pin column and the ejector pin through hole, avoid ejector pin jamming, improve demolding efficiency, and reduce maintenance costs. It solves the problems of existing ejector pin structures easily causing ejector pin jamming, which prevents the rubber part from being ejected smoothly, affecting demolding efficiency, or causing rubber leakage, which makes it difficult for the
rubber material to completely and evenly fill the injection mold cavity, affecting product quality, and the problems of difficult-to-clean leaked
rubber material and high maintenance costs.