Weight detection machine is a kind of automatic weight detection line equipment, mainly used to dynamically detect whether the weight of the product is qualified, so as to determine whether the product packaging is missing parts, product accessories or excess weight. The weight of the product is measured during the transmission process of the product, and the measured weight is compared with the pre-set weight range, and the product that does not meet the weight is automatically removed, or the product of different weight ranges is selected into the specified weight class area.
020-34563445Sorting machine is a low speed, high precision online weight inspection equipment, can be integrated with a variety of packaging production lines and conveying systems, mainly used for online testing whether the weight of the product is qualified, whether the package is missing parts or product weight archives. The online automatic detection machine completes the measurement of the weight of the product in the process of product transportation, and compares the measured weight with the pre-set range, and the controller issues instructions to remove the weight unqualified products, or distribute the products of different weight ranges to the designated area.
The general production of weighing and sorting scale is composed of weighing conveyor, controller and material conveyor. The weighing conveyor completes the collection of the weight signal and sends the weight signal to the controller for processing. The feed conveyor mainly ensures sufficient spacing between products by increasing the speed. The discharge conveyor is used to transport the tested product away from the weighing area.
The conveying speed of the material on the conveyor production line is fast and fixed, about 0.5ms speed. The material enters and leaves the weighing platform in the form of an impact, and the remaining stable weighing time is very short. The measurement should be completed within about 20ms. For the direct and indirect impact of the material on the weighing platform when it enters and leaves, an overshoot will be generated on the system. The principle is to compare the value between two continuous fixed sampling time interval signals, the value of the value is its slope, set the threshold point of the ratio, filter the sampled data that exceeds the threshold value, and filter the remaining data points with little slope change, so as to eliminate the interference caused by vibration and high frequency.
To realize the on-line dynamic detection machine of automatic production line, the weight is used as the reference value of the product and automatically eliminated, and the statistics and feedback are given to the sorting system as the basis for control adjustment. The whole system design does not need to select interfaces, A/D and other devices, saving costs and components, and directly communicate with other machines on the production line through the bus, to achieve fully automated production and testing. It has the characteristics of fast measurement speed, high measurement accuracy, low cost, reliable operation, generous interface display, easy operation and multiple expansion functions, suitable for most automatic weighing industries, and easy to upgrade. It not only reduces the manpower input of the enterprise, but also has high efficiency and is free from external interference, and can realize the fully automated operation and detection of the production line.
