Author: Smartweigh–Multihead Weighter
Multihead weigher is a kind of weighing equipment used for intermittent feeding and continuous discharging on production lines. It is often used for control batching of fine materials such as cement, lime powder and coal powder. Multihead weigher can reduce labor costs on the assembly line and improve production efficiency. Now it is recognized and used by more and more enterprises. So what is the working principle of multihead weigher and how does multihead weigher obtain traffic? Let's take a look below! ! ◆The working principle of multihead weigher Before understanding the principle of multihead weigher, let's briefly look at the structure of multihead weigher: multihead weigher includes: feeding gate, weighing hopper, agitator, discharging device, weighing sensor, metering control device components. The main function of the feed gate is to feed the weighing hopper. The function of the weighing hopper is to carry heavy materials. The function of the agitator is to assist the unloading of materials with poor fluidity. The main function of the discharge device is to discharge the weighing hopper. The bulk material weighing sensor inside is to convert the weight signal of the material into an electrical signal for output. The metering control device controls and measures the feeding rate, conveying volume, etc. The functions of these parts are familiar. Let's introduce the multihead The working principle of the weigher will be much easier, the working principle of the multihead weigher.
In the work, the multihead weigher first weighs the discharging device and the weighing hopper, and compares the actual feeding rate with the set feeding rate according to the weight loss per unit time, so as to control the discharging device and make the actual feeding rate Always accurately meet the set value. During the feeding process in a short time, the discharge device uses gravity to make the control signal stored during the work work according to the volumetric principle. During the weighing process, the weight of the material in the weighing hopper is converted into an electrical signal by the weighing sensor and sent to the weighing instrument. The weighing instrument compares and discriminates the calculated material weight with the pre-set upper and lower weight limits. The feeding gate is controlled by PLC, and the material is fed into the weighing hopper intermittently. At the same time, the weighing instrument compares the calculated actual feeding rate (discharge flow) with the preset feeding rate, and uses PID adjustment to control the discharging device, so that the actual feeding rate accurately tracks the set value .
When the feeding gate is opened to feed into the weighing hopper, the control signal locks the feeding rate, and volumetric discharging is performed. The weighing instrument displays the actual feeding rate and the accumulated weight of the discharged material. This is the principle of multihead weigher. ◆How does the multihead weigher acquire the flow? The multihead weigher is very important for the acquisition of the flow, because the acquisition of the flow is the basis for the accurate measurement of the product. The internal algorithm of such a device and instrument performs the control calculation and output adjustment to approach the target flow when it is used. signal to control the inverter, etc.
Let's take a look at how the multihead weigher obtains traffic. In the process of using the multihead weigher, it will effectively use its weighing bucket and feeding mechanism as its entire scale body. When in use, it will continuously sample the weight signal through the symmetrical body of its instrument, so that the multihead weigher can be effectively calculated. The rate of change of the weigher per unit time can be used as its instantaneous flow. This is how the multihead weigher obtains traffic. In the future, more and more enterprises will choose the multihead weigher. If you have any questions about the multihead weigher, you can contact us.
Author: Smartweigh–Multihead Weighter Manufacturers
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