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A three-dimensional weaving tension control method

A tension control and three-dimensional weaving technology, 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 improve controllability

Active Publication Date: 2021-02-02
BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A three-dimensional weaving tension control method
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  • A three-dimensional weaving tension control method

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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 of 75mm between the weaving needle (21) and the woven preform (23), the tension side bar (25) selects a stainless steel rod with a diameter of 3mm, and the yarn (24) is T300-3K carbon fiber multifilament, reserved The length is 310mm, the tension of the yarn (24) is set to 25cN during the weaving process, and the theoretical weaving deflection angle between the yarn (24) and the ground is gradually reduced 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 prefabricat...

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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Abstract

The invention relates to the field of manufacturing fiber-reinforced composite material preforms, in particular to a method for controlling three-dimensional weaving tension of composite materials. The steps of the invention are: setting the tension of the yarn, and calculating the theoretical yarn weaving deflection angle of the weaving needle at any position during the weaving process. During the weaving process, the weaving deflection angle is detected in real time and compared with the theoretical weaving deflection angle, and the tension application line is actively retracted to realize the control of the weaving deflection angle and thus the tension. The three-dimensional weaving tension control method proposed by the present invention realizes the tension control in the three-dimensional weaving process of the prefabricated body, and is conducive to improving the controllability and automation of the three-dimensional weaving process.

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

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 Patents(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 BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD