The requirements for the automatic weighing module by the weight Sorting machine are that the system should be able to conduct real-time weighing of continuous or discrete materials flowing through the components of the weighing module, display, store, detect and implement necessary control according to different requirements. The system performs online weighing module sorting for the products that have been filled on the sorting machine, with the Electronic scale placed behind the labeling machine and in front of the Filling machine, positioned in the middle of the conveyor. The weighing module is weighed from left to right. The distance between the entrance photoelectric sensor and the electronic scale platform is a certain width. When the weighing module of this product is about to end, the next product just reaches the entrance position, the previous product reaches the sorting cylinder position, and this process is repeated to record the data. The electronic scale collects the analog signal of the weighed object, and the transducer amplifies and converts the weak analog signal (mV level signal) into a standard analog signal (0-10V), and the standard signal is sent to the voltage input terminal of the analog quantity module. The CPU, with its built-in 1MSPS sampling rate of 12-bit ADC, samples the signal, performs filtering and data processing on the sampled signal, and transmits the processed data through RS-485 to the PLC control system. The PLC can send instantaneous data or average data commands to the CPU at any time and perform read and write operations on the internal parameters of the CPU; the PLC can further process the subsequent data based on the values sent by the weighing module sensor. 

Since the conveying speed of the feeding bucket on the sorter is fast and fixed, approximately at a speed of 0.5 m/s, the bucket enters and leaves the weighing module platform in an impact form. The remaining time for the stable weighing module is very short, approximately 20 ms, during which the measurement is completed. The direct and indirect impacts of the bucket entering and leaving the weighing module platform on the platform will cause an overshoot in the system. The slope filtering method is used to filter the sampled data, which is to compare the values between two consecutive fixed sampling time intervals of the signals. The magnitude of the value is its slope. Set the value point of this ratio, filter the sampled data that exceeds this threshold, and perform mean filtering on the remaining data points with little slope change, thereby eliminating the interference caused by vibration and high-frequency. 

The sorter is mainly capable of selecting items that do not meet the specified weight values. It works in conjunction with the conveyor belt and the rejection equipment to separate the items that do not meet the requirements. Only the items that meet the requirements can pass through. It already includes many of the necessary functions. It uses the world's advanced digital weighing units to achieve high-speed and stable measurement. The patented weighing frame structure ensures accuracy and stability. The multi-mode LCD graphic display operating system has an operation interface in Chinese, English and Korean, which is convenient and easy to learn. It has powerful data statistics functions, recording the detection data for each shift. The detachable conveyor belt is convenient for maintenance. It can automatically count, automatically reject non-compliant products or give an alarm when encountering non-compliant products. The detection standard weight can be set, and the detection weight and quantity are displayed in real time, along with the inspection results. During the product transportation process, the weight of the products is measured and compared with the pre-set range. The controller issues instructions to reject the weight-unqualified products or send products within different weight ranges to the designated areas. The weighing machines all have a weight signal feedback function. Usually, the average weight of the set quantity of products is fed back to the controller of the packaging/filling/closing machine. The controller will dynamically adjust the feeding amount to make the average weight of the products closer to the target value. It can also provide rich report functions, including the quantity of packaging in each area, the total quantity in each area, the qualified quantity, the qualified total quantity, the average value, the standard deviation, and the total quantity and total cumulative.