The sorting belt scale is mainly used for placing products. Its speed is slightly slower than the speeds of the latter two sections, and it is mainly used for buffering purposes to ensure that the products enter the dynamic weighing section at a uniform speed. It is used to achieve dynamic weighing during the belt movement and to feed the weighing data back to the control system. Based on the weight data fed back from the dynamic weighing section, the sorting action is determined at which level of the outlet to perform the sorting operation. After the products run to the corresponding rejection port, the rejection action is executed. The Sorting machine can quickly identify the relevant information of the products and perform address matching on the obtained information. Different product categories are stored in different areas on one side of the conveyor belt, and a scanner and an air cylinder push rod for pushing the products into the corresponding storage area are set on the opposite side of each area. When the photoelectric sensor detects the product separation, the sorting conveyor belt starts to operate and conveys the products down. If the information obtained by the corresponding scanner matches the area, this signal is taken as the PLC input and controlled by the PLC to push the products into the corresponding storage area by the corresponding air cylinder push rod, completing the sorting. If there is no match, the products continue to be conveyed and sorted.

The sorting machine mainly consists of control devices, pneumatic devices, conveying devices, electric devices, power supply, and sensing devices. The control device part mainly refers to the upper computer and PLC equipment; the pneumatic device part consists of cylinders, oil misters, water and air filters, and gas transmission channels, etc.; the conveying device is mainly a belt conveyor; the electric device includes DC motors, electric control reversing valves, etc.; the sensing device is composed of sensors, encoders, switches, etc.

The commonly used equipment and devices in the sorting machine distribution center generally consist of a classification device, a conveying device, and a sorting passage. During the operation of the entire automatic sorting system, all parts are connected through a computer network. Through automatic control with appropriate manual control, the product sorting work is completed. The main functions of each part device are as follows:

(1) Classification device: Its function is to receive the sorting instructions issued by the execution control device. When products with the same sorting instruction signal pass through the classification device, the classification device immediately places the product on another conveyor belt or directly into the sorting passage according to the sorting instructions.

(2) Conveying device: Its function is to convey the products to be sorted through the control device and the classification device to the two sides of the conveying device. Usually, the conveying device is connected to multiple sorting passages and is responsible for transporting the products to the classification device, allowing the sorted products to slide down the conveyor belt and proceed to the subsequent operations.

(3) Sorting passage: Through the sorting passage, the sorted products are conveyed down the conveyor belt and then into the platform passage of the collection area. The staff collects all the products on the collection platform, unites them, and stores them in the warehouse or departs for vehicle distribution.