Yarn tension control method based on sliding mode fuzzy control

A yarn tension and fuzzy control technology, applied in the textile field, can solve problems such as insufficient system stability and slow speed, achieve parameter changes and disturbance insensitivity, reduce static difference, and achieve simple physical effects

Inactive Publication Date: 2022-04-26
HUZHOU TEACHERS COLLEGE
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved in the present invention is: in order to solve the slow speed of the start-up process of the yarn tension control system in the prior art and the insufficient stability of the system, design a yarn tension control method based on sliding mode fuzzy control

Method used

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  • Yarn tension control method based on sliding mode fuzzy control
  • Yarn tension control method based on sliding mode fuzzy control
  • Yarn tension control method based on sliding mode fuzzy control

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Embodiment Construction

[0021] The structure of the yarn tension control system is as follows: figure 1 As shown, it consists of five parts: speed sensor, controller, tension sensor, winding mechanism and unwinding mechanism. The winding and unwinding mechanisms are respectively composed of winding and unwinding motors and winding and unwinding rollers. The winding and unwinding motors respectively drive the winding and unwinding rollers, and the winding and unwinding motors are directly connected with the winding and unwinding rollers. V 2 , V 1 Respectively, the linear speed of the take-up and unwinding rollers, l is the yarn length between the take-up and unwinding rollers. When there is a speed difference between the take-up and unwind rollers, tension is created inside the yarn. When V 2 greater than V 1 Too much will cause the yarn tension to be too large, which will easily cause the yarn to break; otherwise, the yarn tension will be too small, which will easily cause the yarn to fall off....

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Abstract

A yarn tension control method based on sliding-mode fuzzy control comprises the steps that a sliding-mode fuzzy controller is designed and comprises a sliding-mode controller and a fuzzy controller, a winding motor of a yarn tension control system serves as a control object, and a tension error e and a change rate of the tension error e are collected to serve as input variables of the sliding-mode controller; yarn tension control law output u acting on the winding motor is obtained; meanwhile, according to a mathematical model of a yarn tension control system, designing a sliding mode surface s of a sliding mode controller and a change rate of the sliding mode surface s as input variables of a fuzzy controller, and adjusting an output variable reaching law parameter delta gamma of the fuzzy controller in real time to act on the sliding mode controller through a fuzzy rule; the speed and stability of the starting process of the control system are improved.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a yarn tension control method based on sliding mode fuzzy control. Background technique [0002] Yarn tension control technology is an important link in the textile production process. The control performance of the yarn tension will directly affect the quality of the finished yarn. If the yarn tension is too small, the yarn is easy to loosen, resulting in stripping and reducing work efficiency; if the yarn tension is too high, the yarn is easy to break, increasing the end-break rate. Therefore, in order to improve the yarn quality, the yarn tension control system must have fast dynamic response speed and stable control performance. Contents of the invention [0003] The technical problem to be solved by the present invention is to design a yarn tension control method based on sliding mode fuzzy control in order to solve the slow start-up process and insufficient stability o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H59/38B65H63/00H02P6/182H02P6/34H02P21/00
CPCB65H59/385B65H63/00H02P21/0007H02P21/001H02P6/182H02P6/34B65H2701/31Y02P70/10
Inventor 王培良叶秋阳胡开亮沈刚
Owner HUZHOU TEACHERS COLLEGE
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