The Filling system consists of two sets of weighing control devices, including a feed hopper with two feeding channels, two sets of weighing buckets and weighing controllers with the same device, a discharge gun and a shrinking mechanism, and a touch screen. The hopper is used to store the materials to be weighed, the weighing sensor installed at the bottom of the weighing hopper is used to detect the material quality in the bucket, the shrinking mechanism can shrink the filling gun according to the control signal, and the weighing controller is used to collect, process and control the data, and the touch screen with embedded MCGS configuration software can realize the real-time display of data and the setting of system parameters.

In the operation of the system, the two weighing controllers work in parallel, and both run the same program to complete quantitative weighing. Through the touch screen to set quantitative value, fast forward, medium forward, slow forward and other parameters, start the system. The automatic Filling machine controls the valve of the feed port to open fully, so that the material can enter the weighing bucket quickly, and the weight of the material is converted into the corresponding voltage signal through the weighing sensor to transmit to the weighing controller, which completes the signal amplification, filtering, A/D conversion and processing. On the one hand, the processed data is transmitted to the touch screen for real-time display, and on the other hand, it is compared and weighed to determine whether the quality of the material in the bucket is greater than the parameters set by the touch screen. According to the comparison results, the controller will combine the output control quantity of the three-stage feeding algorithm to drive the actuator to control the closure of the valve, thus changing the feeding speed. When the mass of the material in the weighing barrel and the amount of air drop reach the quantitative value, the valve of the discharge port is closed, and then the weighing controller with embedded MCGS touch screen sends the discharge request. Wait until the embedded MCGS touch screen gives the discharge signal, and finally execute the discharge, and the quantitative weighing of the weighing controller is completed. The whole weighing and unloading are controlled by the weighing controller, and the coordination process of the two weighing controllers is controlled by the touch screen with embedded MCGS.