The batching machine sets the given values of each material according to the mixing ratio. The weighing instrument or DCS system controls the feeding of various materials in sequence and detects the amount of materials added. The rotational speed of the discharging motor is controlled according to the amount of materials set by the system. When the amount of materials added reaches the set value, the feeding valve of this material is closed. The batching process is completed until all the materials have been added in accordance with the set addition values. The Weighing modules are respectively used to detect whether the raw materials in the mixing silo are sufficient. If the raw material supply reaches this position, the weighing module gives a signal to control the discharge valve of this silo to close and stop the discharge. The screw Feeder is responsible for sending the raw materials from each corresponding batching bin to the batching scale according to the formula respectively. The weight of the batching scale is detected in real time by the weighing module. Once all the required raw materials reach the required weight, the gate of the batching scale's opening mechanism is controlled to open. After the raw materials are completely fed into the mixer according to the formula process, the gate of the batching scale's opening mechanism is closed. The motor of the mixer starts the mixing process. According to the process requirements of the formula worker, after stirring for a certain period of time, the motor of the mixer stops. The motor of the opening mechanism of the mixer rotates forward, opening the gate of the mixer and sending it to the next process.

The batching machine uses a hopper scale for weighing. The hopper scale conducts intermittent weighing, which can conveniently achieve batch control of batching, ensuring uniform mixing of materials entering the silo, thereby stabilizing the silo conditions, shortening the feeding time, and achieving the goal of increasing production. The batching machine has two control modes: automatic and manual. The automatic mode is further divided into fully automatic and semi-automatic. In fully automatic mode, according to production requirements, the proportion of various materials is input into the upper computer. The upper computer calculates the target values of various materials and then sends the target quantities of various materials to the corresponding weighing instruments through communication. The PIC sends a start batching signal to start the weighing instruments, and the weighing instruments then carry out batching. The weighing instrument sends out a rapid feeding signal, keeping the screw feeder in a high-frequency state. The material quickly falls into the weighing hopper, and at the same time, the net weight of the material is displayed in real time on the upper computer. When the material reaches the set rapid batching target value, the weighing instrument sends out a slow feeding signal and stops the rapid feeding signal, putting the screw feeder in a low-frequency state. When the material reaches the set slow-speed batching target value, the weighing instrument stops the slow-speed feeding signal, causing the screw feeder to stop. When the difference between the actual material weight and the target value is not within the allowable range, the weighing instrument will continue to start the point operation for feeding to ensure the accuracy of the batching.