Author: Smartweigh–Multihead Weighter
Multihead weigher is a kind of weighing equipment with intermittent feeding and continuous discharging. Different types of multihead weighers have special functions. Through this article, I will introduce to you how multihead weighers work? In the work, what factors will affect the accuracy of the multihead weigher and what are the future development prospects of the multihead weigher. Matters needing attention in multihead weigher, factors affecting accuracy Multihead weigher has both static scale and multihead weigher characteristics. Therefore, when designing the system, it is required: the correct delivery rate range. Generally, the actual working range is 60%~70% of the rated delivery rate. %optimal. If AC speed regulation is adopted, the best strain frequency is 35~40Hz.
This ensures a wide adjustment range, because when the delivery rate is too low, the system stability is poor. In other words, the sensor also uses 60%~70% of its range, and the signal variation range is wide, which is extremely beneficial to improve the accuracy. The mechanical structure design should ensure that the material has good fluidity, and at the same time, ensure that the feeding time is short.
The supporting transmission system should ensure smooth operation and good linearity. Application prospect of multihead weigher With the rapid development of electronic control technology, multihead weigher adopts new technology to increase the measurement accuracy from 0.3%~0.5% to 0.1%~0.2%, even to exceed static scales, this new technology The core is the application of digital load cells. The system automatically controls the discharge screw/electric vibration machine/belt conveyor according to the reduction rate of the material weight in the weighing hopper to achieve the purpose of quantitative feeding.
When the material in the weighing hopper reaches the lower limit of the weighing position, the feeder will discharge the material at a fixed speed at that time, and at the same time, the material in the transition silo will quickly drop into the weighing hopper, and stop loading when the material reaches the upper weighing limit. material. Applicable range of weight loss weighing: batching accuracy of granules and powders with high viscosity, large particle size and high moisture content:≤1% F.S.
Author: Smartweigh–Multihead Weighter Manufacturers
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