Device for accurately controlling feeding amount of grinding aid

The utility model discloses a grinding aid feed quantity accurate control device which comprises a mixing cylinder, a stirring bin is arranged inside the mixing cylinder, one side of the top of the mixing cylinder is fixedly connected with a conveying box, the inside of the conveying box is movably connected with a movable shaft, the outer circumferential surface of the movable shaft is fixedly connected with a spiral piece, and the spiral piece is fixedly connected with a feeding port of the mixing cylinder. A first motor is installed on the outer surface of the conveying box, one side of the movable shaft penetrates through the conveying box and is fixedly connected with the output end of the first motor, the top of the conveying box communicates with a feeding bin, the bottom of the conveying box communicates with a discharging bin, and the bottom of the discharging bin extends into the stirring bin; and a feeding bin is arranged on the other side of the top of the mixing barrel, and the bottom of the feed