Upper die locking and clamping mechanism of die frame

The utility model discloses an upper mold locking and closing mechanism of a mold frame, an upper mold frame is arranged above an upper mold, the left side and the right side of the upper mold are respectively provided with a locking buckle plate, a rotating shaft is arranged in each locking buckle plate, a locking plate is arranged below the upper mold frame, the outer surface of each locking plate is provided with a locking clamping groove, and the locking clamping grooves are connected with the upper mold frame. A driving motor is arranged in the upper die, a lead screw is arranged above the driving motor, a fixing rod is arranged on the left side of the lead screw, a bearing is arranged above the lead screw, a sliding block is arranged outside the lead screw, a telescopic spring is arranged in the sliding block, and guide sliding grooves are formed in the upper side and the lower side of the telescopic spring correspondingly. Guide sliding plates are arranged on the right sides of the telescopic springs.