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A Weaving Method of Three-dimensional Prefabricated Body with Gradient Structure

A gradient structure and prefabricated body technology, which is applied in textiles, papermaking, textiles, looms, etc., can solve the problem of not being able to weave three-dimensional prefabricated bodies, and achieve the effect of less dependence on labor and good reliability

Active Publication Date: 2017-05-10
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fine-woven piercing process can realize the weaving of large-thickness fabrics, but due to the use of carbon fiber smooth fabrics or satin fabrics for piercing, this method cannot weave a three-dimensional prefabricated body with a gradient structure in the plane

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 Weaving Method of Three-dimensional Prefabricated Body with Gradient Structure
  • A Weaving Method of Three-dimensional Prefabricated Body with Gradient Structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] 1. Make a fiber-reinforced composite material prefabricated body with a carbon fiber cross-sectional size of 250mm×80mm×30mm. The working condition is that the main structure bears static load, and the X direction bears part of the dynamic load on the left side. Divide the prefab structure into 3 parts like figure 2 As shown, 1 is the full-fiber weaving area, 3 is the weaving area using the carbon fiber composite material guide sleeve in the Z direction, and 2 is the transition area between the full-fiber weaving area 1 and the Z-direction weaving area 3 using the carbon fiber composite material guide sleeve;

[0030] 2. According to the overall loading situation, the fibers are laid in the three directions of X, Y, and Z in the space, and the fibers in the X and Y directions running through the full fiber weaving area 1 and the Z direction using the carbon fiber composite guide sleeve in the weaving area 3 use T300 -6K carbon fiber, the fiber winding method is linear,...

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 discloses a three-dimensional prefabricated body weaving method with a gradient structure, which mainly includes the following steps: decomposing and determining the performance requirements of different functional parts of the parts according to the use requirements of the required composite parts; , fiber selection and parameter design; design the guide sleeve, fiber selection and parameter design of the transition area to achieve a smooth transition in the transition area; determine the weaving sequence in the computer according to the functional parts, the guide sleeve layout of the transition area, and the fiber winding method to generate layers Fiber iteration instructions for layer weaving; guide sleeves are arranged according to the design requirements of functional parts and transition areas to generate guide sleeve arrays; the weaving mechanism is driven to select different fibers for layer-by-area weaving to obtain a three-dimensional prefabricated body with a gradient structure. The invention can realize the weaving of the composite three-dimensional prefabricated body with gradient structure, and is especially suitable for the development of the prefabricated body with different loading conditions at different parts of parts.

Description

technical field [0001] The invention belongs to the field of three-dimensional prefabricated body weaving. Background technique [0002] The number of yarn directions in the three-dimensional preform is 3 or more, and most of the inner yarns are in a straight state. Three-dimensional preforms are used as reinforcement materials to make advanced composite materials. They have been successfully used in high-tech fields such as aviation, aerospace, ships, and rail transit, and have good development prospects. [0003] At present, three-dimensional is mainly realized through weaving process, three-dimensional weaving process and fine weaving and piercing process. Chinese patent CN1068607A discloses a weaving method for weaving three-axis orthogonal structure fabrics using a weaving process. A multi-layer moving shed is formed by controlling the movement of the heald frame through a dobby mechanism. The weft and Z yarns are divided into upper and lower layers, which are also co...

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): D03D25/00
CPCD03D41/004D03D25/005D10B2401/16D10B2401/18D10B2505/02D03D1/00D10B2101/06D10B2101/12D10B2321/0211D10B2331/021D10B2401/04D10B2401/06
Inventor 单忠德刘丰王争张群战丽乔娟娟
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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