Express waste paper box recovery device

The utility model provides an express waste paper box recovery device, and relates to the technical field of waste paper box recovery devices, the express waste paper box recovery device comprises a crushing box, a crushing roller and a replacement device, the replacement device is arranged on the side surface of the crushing box, the replacement device comprises two motors, the motors are fixedly connected with the side surface of the crushing box, and two rotating rods are fixedly installed on the inner walls of the two sides of the crushing box. A sliding ring is slidably connected to the surface of the rotating rod, traction rods are hinged to the surfaces of the two sides of the sliding ring, clamping grooves are formed in the surfaces of the two sides of the rotating rod, two sliding grooves are formed in the surface of the crushing roller, clamping blocks are slidably connected into the sliding grooves, and mounting grooves are formed in the surfaces of the two ends of the crushing roller. According to