在砼搅拌工艺的配料计量过程中,一般采用气动机构来控制砂石料仓弧门的启闭来实现对物料称重量的控制。我们知道,气动装置的动作都有一定的滞后性,即电磁气阀得到电信号开始到气缸动作的完成需要一定的时间,这段时间一般是由气源气压、管道阻力、气缸活塞阻力和机械结构及物料阻力 In the mixing and metering process of the mixing and stirring process, a pneumatic mechanism is generally used to control the opening and closing of the arc gate of the gravel bin to achieve the control of the weighing of the material. We know that the action of the pneumatic device has a certain lag, that is, it takes a certain time for the electromagnetic valve to get the electrical signal from the beginning of the cylinder action. This time is generally the air source pressure, the pipe resistance, the cylinder piston resistance and the mechanical Structure and material resistance