Sanding machine

The sueding machine comprises a machine frame, and cloth feeding rollers are sequentially arranged on the machine frame in the machining direction. A front traction roller group; a front grinding roller group; a middle traction roller group; a reverse grinding roller group; a rear cloth spreading roller group is arranged on the rack at the cloth feeding end of the rear traction roller group; the cloth outlet roller is arranged on the rack at the cloth outlet end of the rear traction roller group; the cloth swinging frame is provided with a cloth swinging roller; the sanding machine can be used for sanding the front side and the back side of cloth at the same time, and batting generated after sanding can be sucked away through the front side air suction mechanism and the back side air suction mechanism, so that the whole sanding process is more environment-friendly; the number of the sanding rollers of the front sanding roller set and the back sanding roller set is reduced, and the shaft diameter of the sandin