Sand roller pressure plate

The emery roll pressure plate comprises an outer ring, connecting rods and a shaft sleeve, the connecting rods which are axially distributed at equal intervals are fixedly arranged on the inner side of the outer ring, the shaft sleeve is arranged at the circle center of the outer ring, and the connecting rods are fixedly connected with the shaft sleeve; the four threaded blind holes and the external emery roll are fixed through bolts, then the outer ring is arranged to abut against the side face of the emery roll, and the emery roll is clamped in cooperation with the bolts, so that connection between the emery roll pressing disc and the emery roll is more stable, and the emery roll pressing disc and the emery roll are more stable. The balance groove is arranged, so that the cost is reduced without influencing the structural strength of the connecting rod, the gravity center of the emery roll pressure plate is not changed, the stability of the emery roll pressure plate is ensured, and the emery roll pressure p