Digital Design And Joint Control Simulation Of Automatic Equal-length Winder

Textile and garment processing companies often need to lay a roll of cloth on a platform with the required length and number of layers,Which is usually done by a winding and paving machine.To solve the problem of the current low level of automation of domestic winder and long-term cost of automatic full-length winders,this dissertstion designed a fully automatic equal-length winder to improve working efficiency.Its main research work and achievements are as follows:1 Detailed designed the main power system,transmission system and servo system,support shaft system,worm system,and lever system of the automatic equal-length winder;established a fully automatic equal-length winder mathematical model of tension in the process and tension control system;designed the winder control system,and presented the control wiring diagram of the frequency conversion speed regulation of the winder and the wiring diagram of the fine-adjustment control system of the winder diameter,and finally completed the design of automatic equal-length winder control system.2 Firstly,this dissertation built a three-dimensional model of the winder using Solidworks,then built a multi-rigid model of the winder using ADAMS,established the finite element model of the supporting axis of the key part in ANSYS,obtained its modal property,and then output the model.After that,imported neutral files into ADAMS to generate corresponding flexible bodies.Replaced the rigid supporting shaft with the generated flexible shaft to complete the construction of the rigid-flexible coupling dynamic model of the winder,paving the way for subsequent research work.3 Kinematic analysis of the multi-rigid model of the winder using ADAMS to adjust the overall radius of the winding process and the micro adjustment of the winding process.The simulation analysis results show that: The winding radius can be changed from R2000 mm to R1500mm;in the micro adjustment process of the winding radius,it can realize 4 layers of cloth per winding,automatically adjust the winding radius to reduce the thickness of 4 layers,and realize the radius Smooth fine-tuning,but found that in the overall adjustment of the radius of the winding radius adjustment was not smooth,and there were the problems of shock vibration and too low utilization rate of 120 degree worm wheel angle.In order to solve these problems,a parameterized model of the simplified model was established and improved by a parameterized method for the coiler system of the winder.Finally,the average value of the absolute value of the line acceleration with a radius change was reduced by 67.35%,and the utilization rate of the worm gear was improved by 36%.4 Through simulation analysis of the winder-flexible coupling model of the winder,the analysis results of the dynamic stress of the flexible supporting shaft indicated that the strength of the support shaft was insufficient;the overall and partial structure of the support shaft was improved according to the distribution of dynamic stress data,and the support shaft was twisted to the maximum The shear stress was reduced by 71.6%,dropping from 56.933 Mpa to 16.126 Mpa.The effect of reducing the torsional shear stress is very significant,and finally meets the strength requirements of the supporting shaft.5 A joint control simulation model was established in Adams and Simulink.The self-tuning fuzzy PID control algorithm was used for joint control simulation to verify the reliability of the mechanical design of the winder and the coupling characteristics between the mechanical system and the control system of the winder.Simulation results show that the winder can meet the needs of the work,and the coupling characteristics between the winder mechanical system and the control system is good.