Abstract
Winding molding is a commonly-used molding method for composite fiber materials. In this method, the fiber winding tension control is a key technique in fiber winding since the winding tension directly affects the quality of winded products. Here designed is a closed-loop tension control system, equipped with the PLC as the main controller, the industrial control computer as the upper-host, the alternating numeric servo-electromotor and air cylinder as the actuators, and with the angle sensor of real time feedback filament tension change is designed. Presented below is Fuzzy-PID control algorithm, which combines the advantages of PID and fuzzy control by adopting the theory of adapt fuzzy control in big error range and adapt PID control in small error range. Experimental results prove that the principle of the design scheme is right with tension deviation less than 4 pers, response time about 0.4s and thus meeting the requirements of the system well.
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