Abstract: According to the surface treatment process of carbon fiber composites, the overall plan of the production line about the carbon fiber composites surface polishing and spaying was designed, including the component and functional planning of control system, the design of program flow chart, the selection of PLC analysis, the design of I/O contact distribution, robot communication configuration, and the design of human-machine interface. The whole system design of the production line about the carbon fiber composites surface polishing and spaying were finally realized by the whole machine debugging.

Key words: PLC, production line, robot, human-machine interface, control system