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Capping three-dimensional fabric, and its knitting method

A three-dimensional fabric and fabric technology, applied in the directions of fabrics, knitted fabrics, textiles and papermaking, can solve the problems of poor integrity, poor controllability of lay-up operations, and difficult to guarantee quality, and achieve uniform fiber volume content, convenient practical application, The effect of high damage tolerance

Inactive Publication Date: 2006-10-25
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this kind of structural parts are: poor weight reduction effect, poor mechanical properties of joints, and difficult to control; there are also two-dimensional fabric direct layering methods to make capping three-dimensional fabric composite parts, the main disadvantages It is: the fabric is layered, the integrity is poor, the controllability of the layering operation is poor, the fiber volume content of each part of the product is not uniform and consistent, which affects the overall performance of the component, especially the mechanical properties between the fabric layers are weak, and the quality is difficult. ensure
The patent document "Weaving Process of Reinforced Three-dimensional Fabric)" (CN200410014863.0) introduces a weaving process of reinforced three-dimensional fabric, which solves the problem of integral weaving of non-closed fabrics, and is not suitable for the capped three-dimensional fabric described in the present invention. weaving of fabric

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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  • Capping three-dimensional fabric, and its knitting method
  • Capping three-dimensional fabric, and its knitting method
  • Capping three-dimensional fabric, and its knitting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Adopt the weaving method of the present invention to weave rectangular body capped three-dimensional fabric (referring to Figure 7 ).

[0037] The top 6 of the rectangular body capping the three-dimensional fabric is rectangular, and the section of the body 7 is also rectangular. Weave the top 6 of the fabric first. The weaving of the top 6 starts from the preset reserved length warp yarn 2, and the warp density is 80 / layer / 10cm, the width of the top 6 is W=100mm, the length of the top 6 is L=120mm, the length of the body 7 is L'=180mm, and the fabric layer Number N=4 layers, the number of rows of the required warp yarn 2 is calculated to be 4, the number of columns is 80, the total number of warp yarns is 320, the length of the required warp yarn 2 is 180×2+120=480mm, and the length of the required weft yarn 3 For 180 * 2+100=460mm, 320 warp yarns 2 are divided into 4 rows, 80 columns, arranged in parallel and straight (see figure 2 ), then hang the two ends of ea...

Embodiment 2

[0039] Adopt the weaving method of the present invention to weave cone capping three-dimensional fabric (referring to Figure 8 , 10 ).

[0040] Theoretically, there is no top 6 and body 7 in the cone-capped three-dimensional fabric, but the cone tip (top local area) with a smaller area, for example, 5mm 2 A small square area is viewed as a cone capping the top of the 3D fabric 6 . Weave the fabric top 6 first. The weaving of the top of the fabric also starts from the preset reserved length warp yarn 2, and the density of the warp yarn 2 is 120 / layer / 10cm, the width of the top 6 is W=5mm, the length of the top 6 is L=5mm, and the length of the body 7 is L'=250mm. The number of layers of the fabric is 12 layers, the calculated number of rows of the required warp yarn 2 is 12, the number of columns is 6, the total number of warp yarns is 72, the length of the required warp yarn 2 is 250×2+5=505mm, and the required weft yarn 3 The length is 250×2+5=505mm, and 72 warp yarns 2 ...

Embodiment 3

[0042] Adopt the weaving method of the present invention to weave trapezoid body capped three-dimensional fabric (referring to Figure 9 ).

[0043] The weaving method of the top 6 of the trapezoid capped three-dimensional trapezoidal fabric is the same as the top weaving method of embodiment 1; the weaving method of its body 7 is the same as the body weaving method of embodiment 2. The specific parameters are designed according to the requirements of the fabric, and can be the same as or different from Embodiment 1 or 2.

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 peak enveloping three dimensional textiles and the producing process. The fabric possesses the crest and the body which are plaited on time by the longitude yarn and the abb, it is the three dimensional whole fabric without the layer. The said plaiting method plaits the crest of the peak enveloping three dimensional textile: the obligate longitude yarn is fixed in advance according to the fabric frame needing, the obligate length abb are inducted into the said obligate length longitude yarn according to the fabric frame needing using the beeline citing latitude method, they are interlaced, the said obligate length abb is installed in advance, the cycle is performed according to the process to finish the plaiting of the fabric crest; the without interlacing part of the said obligate length longitude yarn and the abb on the fabric crest can be used to be the yarn of the body of the peak enveloping three dimensional textile, the plaiting of the body can be performed using the method of machine plaiting or knitting, so the fabric whole plaiting can be finished.

Description

technical field [0001] The invention relates to a three-dimensional fabric technology, in particular to a capping three-dimensional fabric and its weaving method for the support of three-dimensional fabric composite material parts. The main international patent classification number is proposed to be Int.Cl 7 D03D13 / 00. Background technique [0002] The three-dimensional fabric has a unique structure, and the composite parts reinforced with it have comprehensive properties such as high damage tolerance, impact resistance, ablation resistance, delamination resistance and fatigue resistance. Capped three-dimensional fabric composite parts are a type of three-dimensional fabric composite materials, which have complex structures, various shapes, and various types. Capped 3D fabric is the support of capped 3D fabric composite parts. Among the 3D fabrics, it is a special-shaped fabric with special shape, high performance requirements, and good integrity requirements. It is widel...

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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IPC IPC(8): D03D13/00D04C1/00
Inventor 李嘉禄杨彩云
Owner TIANJIN POLYTECHNIC UNIV
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