Core-pulling device in injection mold

The utility model discloses a core-pulling device in an injection mold. De-molding device comprising a base and a de-molding frame, a demolding frame is fixedly assembled on the surface of the base. An injection device is arranged on the right side of the vertical plate; a forming box is fixedly assembled on the left side of the vertical plate; a sleeve is fixedly assembled on the left side of thesliding frame; one end of a third spring is fixedly assembled on the inner wall of the sleeve; a rack is fixedly assembled at the other end of the third spring; the rack is inserted into the sleeve;a power structure is fixedly assembled on the left side of the sliding frame; the power structure is meshed with the rack; a mold pressing plate is fixedly assembled on the right side of the rack; according to the inner core-pulling device of the injection mold, it is guaranteed that gas in the mold can be exhausted in the machining process, the machining quality of raw materials is guaranteed, meanwhile, the good demoldin