The adaptive adjustment system used by the Feeder is composed of real-time quality feedback (batching scale feedback information) and an adaptive controller, which is the real-time quality of the batching components. The multi-stage variable speed batching controller controls the speed and corresponding time of the discharger according to the deviation of the input and feedback, according to the set batching parameters (the speed of the discharger and the corresponding time), so as to control the output quality of the discharger. It mainly includes host computer, batching controller, each component bin, frequency conversion screw discharger and control valve group, batching scale and mixing machine, etc. As the main station, the controller communicates with host computer and batching scale through Profibus bus. The upper interface of the system is written by VB, which can download the formula and set the ingredients parameters through the upper computer. The batching controller automatically selects the bin according to the formula requirements, and starts the frequency conversion screw discharger and control valve under the corresponding bin. At the same time, it reads the material quality of the batching scale for detection and judgment, and controls the speed of the discharger according to the adaptive multi-level variable speed control algorithm to achieve the control of the discharging speed. If the final weighing mass is within the allowable range of error, the discharging of the component will be completed. If the error is greater than the allowable error, the alarm will be issued, and the group will be distributed to the mixer after the operator handles it, and then the next component of the ingredients will be started. Before the next batch of ingredients, the system will automatically fine tune the ingredients parameters, so that the quality of the ingredients will gradually enter the allowable error range. After all components are weighed, the mixer begins to mix according to the formula setting process.

The proportioning scale is mainly used for the setting of four parts of parameters, such as proportioning monitoring parameters, liquid adding parameters, proportioning parameters and correction parameters. The component monitoring parameters are mainly used to set the parameters of delay monitoring time, monitoring cycle time and stability time, among which the delay monitoring time means that the system automatically monitors whether the discharge quality of the discharger reaches the minimum feed quality set by the fast/slow feed monitoring within this period of time, and if it does not reach the minimum feed quality, the output alarm prompts the lack of material. The stabilization time is used to monitor the actual quality of the ingredients and improve the stability of the system. The liquid addition parameter part is used to set the actual calibrated liquid mass per unit pulse. The system will calculate the added liquid mass according to the number of pulses collected. The setting part of the batching parameters is used to set the parameters of the emptying monitoring period, the monitoring emptying quality, the maximum emptying time, the scale emptying quality and the balance empty delay closing time, etc. The emptying monitoring period refers to the output alarm in the set time if the unloading quality of the scale is less than the set monitoring emptying quality, indicating the unloading failure of the scale. When the scale shows that the mass is less than the set scale empty mass, the system task scale has emptied, and the scale discharge valve is closed after the delay setting time.