Edge material removing device for highlight plate

The utility model discloses a highlight plate rim charge removing device which comprises a frame, a base plate is connected to the inner side of the frame, a conveying mechanism is arranged on the inner side of the frame, the conveying mechanism is arranged above the base plate, the conveying mechanism is connected with a driving motor, four guide wheels are connected to the side walls of the two ends of the frame respectively, and the four guide wheels are symmetrically distributed. The upper ends of the side walls of the two ends of the frame are connected with an upper plate through reinforcing rib structures, a middle plate is arranged below the upper plate, a lower plate is arranged below the middle plate, an air cylinder is arranged in the middle of the upper plate, the output end of the air cylinder sequentially penetrates through the upper plate, the middle plate and the lower plate from top to bottom, and the output end of the air cylinder is fixedly connected with the middle plate through a locking