Chopstick sharpening machine capable of preventing deviation

The chopstick sharpening machine comprises a bottom frame, a discharging hopper is fixedly connected to one side of the top of the bottom frame, a discharging opening is formed in the bottom of the side, close to the bottom frame, of the discharging hopper, and a PLC is fixedly connected to the side, away from the discharging hopper, of the bottom frame. Feeding motors are fixedly connected to the two sides, close to the discharging hopper, of the bottom frame, spiral feeding rollers used in cooperation with the bottom frame are fixedly connected to output shafts of the feeding motors, a fixing frame is fixedly connected to the center of the bottom of the bottom frame, and a supporting plate is arranged on the side, close to one spiral feeding roller, of the bottom frame; and one side of the supporting plate is fixedly connected with a grinding motor. By arranging the limiting mechanism, providing a driving source through the double-head air cylinder and matching the sliding area, the supporting arm, the slid