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Screen printing , its not subject to the restrictions of the size and shape of the substrates , strong adaptability to the ink , printing ink wide range of thickness mediation is widely used , therefore , developed to control accuracy , high performance , easy to operate , wire mesh The printing press is very necessary . In this paper, the production of the original screen printing machine , mature programmable control technology and terminal control technology , and design to transform the original screen printing machine electrical control system . In this paper, based on new screen printing machine electrical control system BWSP-9011HA task analysis , detailed part of its hardware design . Including the master device PLC function module , the man-machine interface configuration as well as the detailed design of the circuit schematic . Speed ??control with AC frequency control technology, PLC control inverter with extended memory communication . Position control servo drive system , the use of semi-closed loop control , with the proximity switch , PLC and positioning module as the controller to control the servo motor driven treadmill accurately delivered slide . PLC program structure design of the entire control system software is based in part on the idea of modular programming , writing initialization , manual , automatic , numerical computation, data communications , and monitoring program module , and the use of EasyBuilder developed touch programmable terminal control procedures, human-machine interface design system , the interaction between the user and the system . After commissioning and commissioning of laboratory and field testing , the paper developed BWSP-9011HA screen printing machine embodied in the use of a good system reliability and high efficiency , good operating performance , and friendly man-machine interface , automation of the entire printing process substrates . The operation results show that the measures taken in this article in the operation of the system during the ideal , to achieve a predetermined indicator .
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