The weighing and Feeding machine uses a control circuit to enable the weighing hopper to be connected to the weighing instrument according to the program. After the weighing module of the hopper is automatically connected to the weighing instrument, it performs automatic tare. And connect the rapid feeding control circuit of the large hopper to load materials into the weighing hopper at a speed of 10kg/s. When the material weight is equal to or greater than the preset value, a high level is output to automatically shut off the fast feeding circuit, and at the same time, the slow feeding circuit is connected to slowly feed at a speed of 5kg/s. Multiple mixed components are configured together according to the proportion requirements of the formula and sent into a "batch mixer" that operates periodically for mixing. Then, they are configured into a material flow containing various components in accordance with the proportion of the formula. When the material flow enters the continuous mixer, it is mixed into a uniform material flow.

The mixing process of the feeding machine is actually a process of mutual blending and relative movement among materials. Mix various raw materials in accordance with the formula ratio to form a batch of a certain capacity. Then, send this batch of materials into the mixer for mixing. One mixing cycle results in the production of one batch of products. After the start of the batching operation process is clicked here, the PLC controls the pneumatic valve and screw for the first material to open. This material is slowly added to the weighing reaction tank. The computer monitors the signal sent by the weighing and metering module in real time and compares it with the target value set by the formula. When the set formula target value is reached, the PLC control output is disconnected The pneumatic valve and screw for feeding the first type of material are closed. After it stabilizes, the total weight of the weighing hopper and the added material is measured, and this value is used as the zero position before feeding the second type of material. Immediately after that, the process of adding the second material begins, and this repeats until the second, third, and so on. Until all the materials have been added.

When the feeding process is completed and all the pre-set discharging conditions are met, the discharging process begins. The discharge pneumatic valve opens, and the mixed material flows out naturally under the action of gravity. The system monitors in real time the signals sent by the weighing module of the weighing hopper. When it detects that the total weight of the weighing hopper has returned to the initial zero position, the discharge valve closes, the discharge process ends, and the mixing process begins. The operator can preset the sequence of each feeding and opening. The system can record the tank number during seed transportation, the actual feeding amount of each raw material, the deviation from the target value set by the formula, the start and end times and feeding time of feeding, as well as the start and end times and discharging time of discharging and other operation data.