Plastic mold is a tool for producing plastic products It is composed of several groups of parts, in which there is a molding cavity. When the plastic mold is injected, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding mold cavity, cooled and shaped in the cavity, then the upper and lower molds are separated, and the plastic products are ejected from the mold cavity through the ejection system.