The weighing control system is an organic whole, and the storage unit, batching unit, and control unit are three inseparable basic units, which are necessary and sufficient conditions to ensure the flow rate of materials for batching. The changes in the basic unit of materials and the materials in the conveying process will have an impact on the flow rate. Ingredient control not only relies on the improvement of regulating devices and optimization of control software to continuously improve the quality of ingredient regulation, but also has an inseparable connection with ingredient technology. Only from the perspective of ingredient engineering can we grasp the development direction of ingredient control and meet the requirements of modern industrial automation production. The weighing mixer includes various batching equipment such as storage, transportation, weighing and batching of raw materials, dust removal, and material mixing, involving various materials such as powder, granular, solid, and bulk materials. The weighing and batching equipment can reasonably choose weighing methods such as "zero position method" or "reduction method" based on industry characteristics, production process requirements, and specific material characteristics, and has multiple working modes such as single bucket single material, single bucket multiple material, and multiple bucket multiple material. The weighing and batching machine is equipped with a centralized control console on the production site, and the dynamic weighing instrument is installed on the console. The weighing sensor data line installed under the support leg of the feeding system is connected to the dynamic measuring instrument. Real time data is uploaded from the weighing instrument to the industrial control computer in the control center through a communication line, and the formula and control commands are transmitted from the industrial control computer in the control center to the explosion-proof Electronic scale instrument and PLC controller through a communication line.

The Weighing system of the extruder includes a suction device, a weighing device, and a discharging device installed in sequence from top to bottom on the extruder. The weighing device includes a fixed bracket, a hopper scale, and several Weighing modules. The suction device is installed above the fixed bracket, and the hopper scale is installed inside the fixed bracket. There are a total of four weighing modules suspended and fixed on the fixed bracket, evenly distributed at the four corners of the hopper scale, in contact with the hopper scale. A feeding valve is installed between the suction device and the hopper scale, and a discharging valve is installed below the hopper scale; The feeding device includes an extruder raw material hopper and several level detection devices. The hopper scale is connected to the extruder raw material hopper, and the level detection device includes a first level detection device, a second level detection device, a third level detection device, a feeding level detection device, and a shortage detection device installed from top to bottom in the extruder raw material hopper. The first level detection device, the second level detection device, the third level detection device, the feeding level detection device, and the shortage detection device are evenly distributed in the extruder raw material hopper, and the feeding level detection device is electrically connected to the feeding valve. The shortage detection device is installed at the bottom of the raw material hopper of the extruder, between the first level detection device, the second level detection device, the third level detection device, the discharge level detection device, and the shortage detection device. The weighing system also includes a material bag connected to the suction device for storing cable materials.