In each cycle of injection molding, the plastic part must be accurately separated from the mold cavity or core. The device that completes the separation of the plastic part is called the demolding mechanism, also called the ejection mechanism.This design adopts a simple push rod demoulding mechanism, and the push mechanism with inclined roof design is the push mechanism. Since the parting surface of the plastic part is simple and the structure is not complicated, the use of this demolding mechanism can simplify the mold structure and bring convenience to manufacturing and maintenance.