Mutton sorting device

The utility model relates to a mutton sorting device with a pre-screening function, in particular to a mutton sorting device which comprises a screening box and a conveying frame, the right side face of the screening box is detachably connected with the left side face of the conveying frame, a sliding groove is formed in the left side face of the inner wall of the screening box, and a cam is driven by a servo motor a to rotate. A cam and a pulley are meshed to pre-screen frozen mutton entering a screening frame according to the size, the screened mutton is arranged on the upper surface of a conveying belt through a discharging port, a servo motor b drives the conveying belt to convey the mutton, and after the mutton is pre-screened, the mutton blocks are manually sorted one by one, so that the mutton blocks are sorted one by one. And in order to avoid omission, the mutton conveyed on the surface of the conveying belt is blocked through the baffle, people only need to sort the mutton to the surface of the clas