Injection mould is a tool for producing plastic products. It is also the tool that gives plastic products complete structure and precise size. Injection molding is a process used in the mass production of complex shaped parts. Specifically refers to the heat melts the material by high pressure into the mold cavity, after cooling curing, forming products. The injection mold is composed of moving mold and fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the moving mold and the fixed mold are closed to form the casting system and cavity, and the moving mold and the fixed mold are separated to take out the plastic products.