Design of networked and electric control system for flat screen printing unit

In response of the deficiency of the convenitional flat screen printing unit such as poor anti- interference ability,weak communication networking function,low accuracy in position control,serious pollution of the network frame and so on,this paper puts forward an optimized electrical control scheme in which Panasonic FP-X PLC is used as the center controller of printing units which consititute a monitoring control system via PC-LINK communication network,and the touch screen is employed as a display and control unit,dynamically monitoring the production process. The printing unit scraper system and network frame lift-up system technology are improved by using new permanent magnet synchronous servo driving strategy. Through the renovation of a number of enterprises' equipment,the results show that the system has high control precision,fast speed,full function,and high degree of automation,improving the efficiency of production and management of enterprises.