The Implement Of Automatic Control System Of Carton Paste Production Line

With the development of carton paste industry, the traditional carton paste production line is manual production, low efficiency, dust pollution is particularly serious during the control process of the weigh of input material, weighting the numerical measure of each carbon stove ,charge-in and gasoline controlling. Caused by excessive emission of pollutants, workshop production environment, product quality is not high, man-machine interface is not flexible, such as the increasingly obvious shortcomings, it has become China's carbon industry bottlenecks. It is very necessary to realize carbon paste production line process adjustment and automatic control.The topic analyses the theory and the process of the automatic control system of carton paste production line at the current domestic situation, using PID control theory, and adopting distributed control, implementing the mixture ratio and the weigh of input material, weighting the numerical measure of each carbon stove ,charge-in and gasoline controlling. The automatic monitoring system greatly reduce dust pollution, Optimizing electrode paste production process,improving efficiency. Also the production line adaptability condition and stability of safe operation greatly enhanced, to explore a practical way small and medium-sized carton paste factories.In this paper,the overall structure of control network and the communication between all parts of the network are designed based on PLC control network and HMI. The system has two DELTA PLC, with the communication of RS485 serial constituting the connection internet, adopting distributed control. The various parts are combined by using RS485 as the means of communication in order to realize the automatic control of carton paste production line. The stability of PLC communication system is complex, so the specific analysis of interference is done and the reasonable anti-interference way is used effectively in order to make the PLC communication system work steadily. In addition,HMI is designed by using delta software Screen Editor 1.05.74, and method of the operation and setting is explained in detail. So it is flexible to operate.