Plastic mold demolding device

The utility model relates to the technical field of plastic mold demolding, in particular to a plastic mold demolding device which comprises a supporting frame, a fixing plate is fixedly connected to the bottom of the supporting frame, a bottom mold is fixedly connected to the top end of the fixing plate, and a limiting rod is fixedly connected to the interior of the supporting frame. The driving motor is turned on to drive the bidirectional threaded rod to rotate, so that the moving block moves by attaching to the outer wall of the bidirectional threaded rod, the moving block moves to drive the rotating rod to rotate, the rotating rod rotates to drive the moving frame to move, and the limiting block moves by attaching to the outer wall of the limiting rod while the moving frame moves. According to the mold, the movable frame is limited, so that the movable frame moves upwards, the top mold is driven to move upwards, the top mold and the bottom mold are separated for demolding, the demolding step is facilitat