该文在对原纸机定量控制功能进行深入分析和技术分解的基础上,采用市场上的通用器件如可编逻辑控制器PLC、步进电机驱动器等,对纸机定量阀控制系统电子控制单元进行了自主设计、编程、实施并投入运行,完成了该项目的国产化改造。国产化控制器成功投入应用后,性能更稳定,功能更完善,维护成本更低,更加有利于现场操作人员对定量阀的精确调整和纸页定量的稳定控制,提高了工艺流程和产品质量的稳定性;同时也锻炼提高了技术人员的业务素质,打破了国外公司对一些关键特有设备的垄断,在行业内推广应用前景十分广泛 Based on the in-depth analysis and technical decomposition of the quantitative control function of the paper machine, the article adopts the common devices on the market such as programmable logic controller PLC, stepper motor driver and so on, to make the electronic control unit of the paper machine quantitative valve control system Independent design, programming, implementation and put into operation, completed the localization of the project. After the localization controller has been successfully put into use, the performance is more stable, the functions are more perfect, the maintenance cost is lower, and the on-site operator is more beneficial to the precise adjustment of the dosing valve and the stable control of the sheet quantity, which improves the process flow and product quality Stability; also exercise to improve the professional quality of technical staff, breaking the monopoly of foreign companies on some of the key unique equipment in the industry to promote a wide range of applications