Rubber injection molding part embedding device

The invention relates to a rubber injection molding part embedding device which comprises an upper mold and a lower mold, a guide cylinder is fixed to the outer side of the upper mold, an insertion hole is formed in the upper mold in a penetrating mode, the guide cylinder and the insertion hole are coaxially arranged, an embedded part is inserted into the guide cylinder and the insertion hole, a through hole is formed in the side face of the guide cylinder in a penetrating mode, and the through hole is communicated with the insertion hole. Clamping units are arranged at the two ends of the through hole, each clamping unit comprises a clamping block, a guide rod, a guide sleeve and an elastic piece, the guide rod is inserted into the guide sleeve in a sliding mode, the clamping block is fixed to one end of the guide rod, the other end of the guide rod is connected with the elastic piece, the clamping block is inserted into the through hole, and the elastic piece is connected with the guide sleeve. A cutting-of