Control System Of The Pail Packing Line Of Flux Wire

In this thesis the control system of the pail packing line ,one of the key projects of Tianjin Science and Technology Committee,which can coil and pack the products rapidly and stably,is designed and the main equipment selection analyzed.This product line will be the first one in our country and supply new welding consumable .According to the requirements of the flux cored wire manufactured by Tianjin Sanying Welding Industry Group on the basis of the thorough analysis of the structure,characteristic and the factors that effects the tensile force of the flux cored wire in the process of coiling, the control system of pail packing line for coiling and packing is designed. The models of the speed control system and tensile force feedback control system are established in the view of engineering.A type of PID regulator is designed according to the requirements of the tensile force feedback control system.On the principle of minimizing the fluctuation of the flux cored wire,the choice of parameters of PID is studied.A tensile force feedback regulator feasible for engineering application is designed,the PID parameters of which are abtained in a optimization tuning method.The simulation in MATLAB shows that the expected control performance are achieved.To settle the problem of the poor control performance of PID regulator due to the variation of the diameter of the H wheel of pay-off ,a type of fuzzy adaptive PID algorithm is presented,and a fuzzy adaptive PID regulator for tensile force feedback control system designed.The simulation in MATLAB shows that the algorithm above has better control performance than PID regulator when the diameter of the H wheel is varying.