Put the workpieces to be checked into the express sorting system warehouse (maximum 6 pieces), if there are less than 2 systems, it will automatically alarm. The target workpiece can be automatically and continuously dropped, and the micro switch is used to detect the blank. The workpiece falls on the conveyor belt, detects that the workpiece is in place, starts the conveyor belt, sequentially detects the position, height, material, color of the workpiece, and then pushes in two positions. First push to the loading station for weight detection, and then push to the electric slide for sorting. Finally, through the pneumatic push sorting system, the workpieces are sorted according to the designated slider. 5 storage rails.Press the start button, the system starts to run, press the stop button, the system stops. Before restarting the device, first press the reset button to reset the internal parameters of the program.