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Smart Weigh is committed to helping clients increase productivity at a reduced cost.
Author: Smartweigh–Multihead Weighter
Do you know how the automatic multihead weigher works and what parts make up the multihead weigher? Through the collection and sorting, the editor prepared this article about the working principle of multihead weigher and the institutional components of multihead weigher for everyone. The automatic multihead weigher is composed of electronic components, load cells, amplifying circuits, AD conversion circuits, single-chip circuits, display circuits, keyboard circuits, communication interface circuits, and regulated power supply circuits. Multihead weigher workflow: When the object is placed on the weighing pan, pressure is applied to the sensor, the sensor is deformed, so that the impedance changes, and the excitation voltage is changed to output a changing analog signal.
The signal is amplified by the amplifier circuit and output to the analog-to-digital converter. Convert it into a digital signal for easy processing and output it to the CPU for operation control. The CPU outputs such results to the display according to keyboard commands and programs.
until this result is displayed. How does the automatic multihead weigher work? 1: During the feeding process, the product enters the feeding conveyor, and the speed setting of the feeding conveyor is jointly determined according to the spacing of the products and the required speed. The purpose is to ensure that there can only be one product during the automatic multihead weigher work process. on the weighing platform. 2: Weighing process When the product enters the weighing conveyor, the system recognizes that the product to be detected enters the weighing area according to the 5261 external signal, such as the photoelectric switch signal, or the internal level signal.
4102 Based on the running speed of the weighing conveyor and the length of the conveyor, or according to the level signal, the system can determine when the product leaves the weighing conveyor. From the time the product enters the weighing platform to the time it leaves the weighing platform, the weighing sensor 1653 will detect the signal, and the controller will select the signal in the stable signal area for processing, and then the weight of the product can be obtained. 3: Special process of rejection When the controller gets the weight signal of the product, the system will compare it with the preset weight range to reject the product. The rejection type will be different according to the application, mainly including the following types: 1. Unqualified products are rejected.
2. Eliminate overweight and underweight separately, or transport them to different places.
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