Analysis And Research On Key Mechanism Of New-Style Automatic Winder

As a bibcock production enterprise of automatic winder, Qingdao Hongda textile machinery has been developed the new-style automatic winder with independent intellectual property rights under many years of hard working. At the same time, the preliminary numeralization was realized in this automatic winder. But there are still some shortcomings, such as the unconstant contact pressure of the bobbin and drum, the pretermission of the tubular yarn when exchanging, the unstable tension and tension control process associating with hysteretic nature. These shortcomings directly affect the quality of bobbin. Therefore, we with Qingdao Honda textile machinery carried out the analysis and research on the key mechanism of the new-style automatic winder.Based on the summaries of the present status and development of the automatic winder, the author has researched the winding mechanism, the automatic exchanger tubular yarn mechanism and tension controll system of the new-style automatic winder.On the basis of analyzing the winding transmission theory, the winding movement and winding density of bobbin, the author improved the winding transmission theory, established its geometrical model and derived the relation equations. This work could provide a theoretical basis when selecting the winding parameter and ensure the high quality bobbin.According to the analysis of the exchanger device of the automatic exchanger tubular yarn mechanism, the author developed a kind of tubular yarn slider mechanism, realized the design and simulation using virtual prototype technology, and verified the feasibility. It will optimize the mechanism, reduce the cost and short the design cycle.The shortcomings of the assolenoid style tension hybrid control system were summarised and then a kind of tension closed-loop control system was presented. The present system employs the fuzzy control method instead of the traditional PID control. In the meantime, the Simulink was applied to simulating the fuzzy control system, then the comparison with the traditional PID control was conducted, and finally the feasibility of the tension closed-loop control system was verified.