Design And Research Of Computer Control System For Multi - Filament Winding Machine

Filament winding is the most commonly techniques of fiber composite material forming. It relates to composite materials, polymer chemistry, machinery and electronics, and computer and many other subjects. The good performance of the fiber winding equipment is precondition and foundation for the production of high quality composite winding products. The paper has researched on computer-controlled multi-filament winding equipment that including winding control and winding tension control.Firstly, the paper studied a computer-controlled method which was used to control a multi-filament winding equipment. It focuses on analysis of all kinds of filament winding regular pattern such as helical winding, hoop winding and zero degree winding. The winding process is divided into two parts. One is the winding process of tube body with a constant winding angle.the other is the winding process of tube edges with dynamic winding angle. It analyzed and designed a calculation method which calculated winding center angle beyond length and winding speed ratio in different section. The paper derived the motion law between core mould and Yarn feeder. It also derived a winding speed ratio calculation method that was based on the mechanical properties of the multidirectional filament winding equipment It also derived a speed, ratio calculation method which based on the mechanical properties of the multidirectional filament winding equipment. Then It designed a winding machine computer-contorled system with stepper motor. It built a mathematical model of stepper motor with the S-curve shap ACC/DEC methods. The control system that based on the open-loop control strategy is divided into five functional modules, including input, output, winding, hanging yarn and exception handling. It details the five functional modules of hardware and software design and implementation process.Secondly.the paper analyzes the winding tension and designs a winding tension control system. In the filament winding process, suitable and stable tension helps to increase the winded components’mechanical properties and to improve the quality of winded products. The tension control system are researched and manufactured by this project. The closed-loop tension control system, with MCU as the main controller, alternating servo-electromotor as the actuator, equipped with the pressure sensor of real time feedback filament tension change is designed. The dynamic integral PID control algorithm is suitable forthe closed-loop system.Finally, the both systems are debugged in part and as a whole to ensure the correctness and stability. Experimental results proved that the principle of the design schemes is right and well meets the requirements of the system.