目的 针对面粉自动冲装称量生产加工要求，改进设计一种可实现多款称量功能的冲粉称量机构，并进行可变脉冲积分化控制设计，实现自动冲装称量应用。方法 采用可编程序控制器(PLC)的高速脉冲输出功能，设计分段高速脉冲控制驱动步进电机解决冲粉称量的生产控制要求，即在精确称量阶段通过设计匀速递减可变脉冲来快速无限逼近积分控制过程以达到精准称量。结果 该设计有效地抑制了称量中干扰和步进电机的高频振颤现象，最大过冲量小于3 g。结论 与传统的粉末自动冲装称量控制应用相比，该控制无整定参数且精准称量时间更短，设计更便于采用PLC编程来实现，称量精度更逼近称量传感器的分辨率。

For flour automatic filling and weighing production requirement, this paper innovatively introduces a kind of flour filling weighting mechanism, which has realized its automatic weighing applications by designing variable impulse integral control. A piecewise high-speed impulse is designed by applying the PLC controller high-speed impulse output function, which drives stepper motor resolving production control. Namely, a constant decreasing high-speed impulse is designed infinitely approaching the integral control function to achieve accurate weighing process in precise weighing phase. This control design have effectively restrained system disturbance, step motor high frequency vibrating and overweighting less than 3 g. Compared with the traditional powder automatic weighing control application, the designed control system has no parameters setting and the accurate weighing time is shorter, and it is more convenient to be realized by programmable logic controller (PLC). The weighing accuracy is more approaching the resolution of weighing sensor.