Guide column polishing device of injection mold

The invention discloses a guide column polishing device of an injection mold. The guide column polishing device of the injection mold comprises a first shell and a second shell, wherein the second shell is welded onto the outer wall of one side of the first shell; a first motor, a fixing frame and a first groove are mounted on/in the inner wall of one side away from the second shell of the first shell through bolts; the first motor is located at the top of the fixing frame; the first groove is located under the first motor; a first rolling wheel, a second rolling wheel and a rotating shaft arearranged in the first shell; an output shaft of the first motor is welded with the first rolling wheel; the second rolling wheel is welded on the rotating shaft; a belt is arranged between the firstrolling wheel and the second rolling wheel. According to the guide column polishing device, the first motor, the rotating shaft, the first rolling wheel, the second rolling wheel, the belt and the fixing bolts are matched with