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A 3D weaving method about special-shaped section

A special-shaped cross-section, 3D technology, applied in the field of 3D weaving, can solve the problems of unrealistic weaving, etc., and achieve the effect of high weaving efficiency and simple weaving process

Active Publication Date: 2017-11-03
IANGSU COLLEGE OF ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing four-step three-dimensional weaving technology mainly produces prefabricated materials with rectangular structures, which cannot realize the weaving of prefabricated materials with complex cross-sections.

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 3D weaving method about special-shaped section
  • A 3D weaving method about special-shaped section
  • A 3D weaving method about special-shaped section

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] A 3D weaving method for special-shaped sections, which divides the entire weaving area into several interconnected rectangular weaving areas of the same size. The size of each weaving area can be determined according to the material structure to be woven. Each weaving area can be the same or can be Different, the rectangular knitting area is divided into 5 knitting work areas, respectively marked as A knitting work area 1, B knitting work area 3, C knitting work area 2, D knitting work area 4, E knitting work area 5; C knitting work area 2 , D knitting work area 4, and E weaving work area 5 are arranged along the horizontal direction, and A knitting work area 1 and B knitting work area 3 are respectively arran...

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 3D (Three-dimensional) knitting method for a special-shaped section. A whole knitting region is divided into a plurality of rectangular knitting regions which are connected with one another and have the same size; each rectangular knitting region is divided into 5 knitting working regions; the 3D knitting method adopts a four-step-process 1*1 knitting method and a knitting cycle is finished through 7 process steps; the 3D knitting method for the special-shaped section is finished through a plurality of knitting cycles. According to the knitting method disclosed by the invention, yarn carriers are separated into a plurality of rectangular knitting regions, which are independently connected with one another, on a common rectangular knitting machine according to a section structure of a prefabricated part, and then the 7 knitting steps are carried out so that the yarn carriers in the plurality of knitting regions finish one time of four-step-process knitting in the seven-step knitting cycle; the knitting regions are completely connected together so that 3D knitting of the prefabricated part with the complicated section is realized; the knitting process is simple and the knitting efficiency is high.

Description

technical field [0001] The present invention relates to a weaving method, in particular to a 3D weaving method on special-shaped sections. Background technique [0002] 3D weaving technology is a new technology developed in the early 1980s abroad. It is a new technology for weaving composite material parts preforms by weaving. A large number of experimental data have confirmed that the composite material with 3D braided structure can not only greatly improve the stiffness and strength of the composite material, but also has good damage resistance and impact resistance. The existing four-step three-dimensional weaving technology mainly weaves prefabricated materials with rectangular structures, which cannot realize the weaving of prefabricated materials with complex cross-sections. The method adopted in the present invention is to divide the complex material into several two-by-two interconnected rectangular weaving areas according to the structure, and then adopts a weaving...

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
CPCD03D25/005
Inventor 陈和春
Owner IANGSU COLLEGE OF ENG & TECH
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