Analysis And Design Of Parallel Automatic Weighing System

Volume batching process has been is indispensable important production link like rubber, pharmacy, daily chemical industry, printing ink, cosmetics, building materials, food, agriculture and so on. Automatic weighing system has the advantage of fast speed, high precision. It plays a key role in the production. Automatic weighing system can not only reduce labor costs and significantly improved weighing accuracy, especially in certain contamination or hazardous environments, unmanned automatic weighing system to better play a unique role.This paper studies cement batching of a material parallel automatic weighing system. Weightlessness weighing and weightlessness has been made the introduction to the working principle of emissions. Weightlessness weigh on principle not subject the scale body and the feed mechanism of change of affecting. It just re-calculate the weight difference, the difference with the flow setpoint error the next weighing cycle to compensate, and the two weight measurement time in minutes. By analyzing the principle of emission rate and cycle emissions of expression derived materials designed feeding weighing system, broken arches and chassis and other components. Arch part adopts screw lift machinery breaking arch. and designing the dust seal and the shaft structure design of the level of single screw conveyor screw conveyor choose to calculate its structure parameters. Broken arches spiral lift mechanical broken arch, and the connection can support the bracket part hopper with broken arch devices.On the basis of analyzing the working principle of the automatic weighing system, The thesis gives introduction of the PLC system hardware and software, the designed communication networking technology transfer data production and management.Designs the software and hardware of PLC control system to increase the controllability of the. Automatic weighing system mathematical model is established. Using MATLAB /SIUMLINK, I analyze of the simulation model results. It is a great way of getting the accuracy of the structural parameters dynamics to further improve the automatic weighing system measuring accuracy.On the basis of the above design and analysis, I choose the suitable motor frequency converter and sensor to designs the automatic weighing system.