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针对当前天然橡胶干燥生产自动化程度低的问题,基于PLC设计了橡胶干燥生产线运胶工序的电气自动控制系统。根据橡胶初加工工艺要求,给出了电气控制系统的电气元件布置图和工艺控制流程图。所设计的电路包括主电路和控制电路两部分,其中,控制电路包括PLC外部接线图、I/O地址分配和PLC顺序功能图。仿真试验证明,该电气系统运行平稳,满足干燥生产工艺要求。该方案设计合理,自动化程度高,可以在天然橡胶干燥生产中推广使用。
Aiming at the problem of low degree of automation of natural rubber drying production, an electrical automatic control system based on PLC was designed for rubber transportation process of rubber drying production line. According to the initial rubber processing requirements, given the electrical control system layout of the electrical components and process control flow chart. The designed circuit includes the main circuit and the control circuit. The control circuit includes PLC external wiring diagram, I / O address allocation and PLC sequence function diagram. Simulation tests show that the electrical system runs smoothly to meet the requirements of dry production process. The program design is reasonable, high degree of automation, can be used in natural rubber drying production.