Belt scale is a series of machines and equipment that use intelligent technology such as computer to detect and analyze the controller and get accurate weighing information content. It is used for automatic continuous weighing of bulk solid materials transferred on belt conveyors. It can accurately measure the instantaneous and cumulative total flow of materials transported on the belt conveyor in the material transportation link. The key components are weighing bridge, weighing sensor, speed sensor and weighing display indicator value.
020-34563445The belt scale is a linear action of the material weight on the transport belt through the scale frame on the weighing module, so that the strain in the sensor produces a micro strain, and then the resistance of the resistance strain gauge of each arm of the bridge attached to the strain change, under the excitation of the bridge voltage, there will be an unbalanced potential output, and the speed sensor measures the speed of the belt. These two signals are sent to the microcomputer integrator through a series of calculations can measure the instantaneous flow of the material. The form is one of the most basic and widely used belt scales, which accepts analog signals from Weighing modules and velocity sensors in the system, displays instantaneous flow and cumulative flow after integration, and sends the instantaneous flow to the computer system as an input signal with 4~20mA analog current signal at the same time. After comparing the signal with the set value, the computer outputs 4~20mA analog current signal to control the speed of the feeding motor through the inverter, realizing the closed-loop control of the material discharge flow, and finally keeping the instantaneous flow and cumulative flow of several materials within the range required by the batching process.
The belt scale consists of A bearing device, a weighing module, a speed sensor and a weighing display. The bearing device is responsible for weighing the weight of the object on the belt and transmitting the data to the weighing module. The weighing module converts the value into the corresponding voltage signal according to a certain conversion formula and converts it into a digital quantity A after a series of processing and transmits it to the arithmetic device. After receiving the transmission speed of the object on the belt, the speed sensor outputs the pulse number B and transmits it to the arithmetic machine. After receiving the data A and B, the arithmetic machine can calculate the total amount of the object in a measurement period, and the total amount of the object through the belt scale can be obtained by statistical and cumulative calculation of each measurement number.
