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Three-dimensional weaving tension control method

A technology of tension control and three-dimensional weaving, which is applied in textiles, papermaking, fabrics, textiles, etc., can solve the problems of difficult control of weaving tension, reduce yarn wear, reduce yarn knotting, and facilitate high-quality forming.

Active Publication Date: 2020-04-10
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention mainly provides a three-dimensional weaving tension control method, which mainly solves the problem that weaving tension is difficult to control in the field of three-dimensional weaving

Method used

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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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] According to a typical embodiment of the present invention, such as figure 2 As shown, according to the height difference between the weaving needle 21 and the woven prefabricated body 23 of 75mm, the tension side rod 25 selects a stainless steel rod with a diameter of 3mm, the yarn 24 is T300-3K carbon fiber multifilament, and the reserved length is 310mm, and the yarn in the weaving process is set. The tension of the thread 24 is 25cN, and the theoretical weaving deflection angle between the yarn 24 and the ground gradually decreases from 6.9° to 2.6° during the weaving process of the weaving needle 21 .

[0023] During the weaving process, the weaving needle 21 moves horizontally toward the pref...

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Abstract

The invention relates to the field of fiber reinforced composite preform manufacturing, in particular to a three-dimensional weaving tension control method. The method comprises the steps that yarn tension is set, and a theoretical yarn weaving deflection angle of a weaving needle at any position in the weaving process is calculated. In the weaving process, the weaving deflection angle is detectedin real time and compared with a theoretical weaving deflection angle, tension application lines are actively wound and unwound, and the control over the weaving deflection angle is realized, so thatthe control over tension is realized. According to the three-dimensional weaving tension control method, the tension control over a preform three-dimensional weaving process is achieved, and the controllability and automation degree of the three-dimensional weaving process can be improved.

Description

technical field [0001] The invention relates to the technical field of composite material prefabricated body manufacturing, in particular to a method for controlling three-dimensional weaving tension of composite materials. Background technique [0002] Due to the gradual shortage of energy in recent years, the production and transportation costs of material manufacturing have increased greatly, so many researchers have focused on the lightweight technology of materials. Since the 1960s, a variety of fiber-reinforced composite materials with three-dimensional structures have been developed. Because of their high damage tolerance, good interlayer performance, and flexible structural design, they are widely used in cutting-edge fields such as aerospace and national defense. [0003] With the development of three-dimensional forming technology for composite material preforms, the production process of preforms is developing towards automation and controllability, and the qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D41/00D03D25/00
CPCD03D25/005D03D41/004D10B2505/02
Inventor 刘丰单忠德杜悟迪吴晓川李志坤陈哲
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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