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Warp arrangement method of 2.5D copying woven sleeve and copying machine woven sleeve

A copying machine and warp technology, applied in the direction of fabrics, textiles, textiles and papermaking, etc., can solve the problems of reducing the performance of fabrics, unevenness, etc.

Active Publication Date: 2019-03-29
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when circular looms are used to weave tubular fabrics, there are gaps and unevenness on both sides of the woven tubular fabrics, which reduces the usability of the fabrics.

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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  • Warp arrangement method of 2.5D copying woven sleeve and copying machine woven sleeve
  • Warp arrangement method of 2.5D copying woven sleeve and copying machine woven sleeve
  • Warp arrangement method of 2.5D copying woven sleeve and copying machine woven sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0038] A 2.5D cylindrical profiling woven cover is prepared by using gradient cloth warp. The warp used in the cylindrical profiling woven cover is 480Tex×1 strand of high-strength glass fiber, the weft is 480Tex×1 strand of high-strength glass fiber, the theoretical thickness of the cylindrical profiling woven cover is 3mm, and the cylinder diameter 70mm, length 200mm, equal diameter along the length direction. The fabric structure is a 2.5D woven shallow cross-bending structure, the warp density of the fabric is 9 threads / cm, and the weft density is 3.3 threads / cm.

[0039] The weaving method of described woven cover comprises the following steps:

[0040] The first step, determine the total row number n=200 of fabric warp yarn according to fabric perimeter, determine the total number of layers m=10 of fabric warp yarn according to fabric thickness;

[0041] The second step, the main warp yarn arrangement: the warp yarns are arranged in the upper 5 layers and the lower 5 l...

Embodiment approach 2

[0047] Embodiment 2 is basically the same as Embodiment 1, except that the fabric structure is a 2.5D woven shallow cross-linked structure, and the weft yarn weaving method is as follows:

[0048] The first step, the first weft introduction: adjust the front and rear heald frames to the position where the front heald frame is higher than the two heald eyes of the rear heald frame, and the position after the yarn movement is as follows: figure 2 As shown, the introduction method of the weft yarn is the same as that of the first weft in Embodiment 1, and will not be repeated here.

[0049] The second step, the second weft introduction: adjust the front and rear rows of heald frames so that the front and rear heald frames are in the same position, and the position after the yarn moves is as follows: figure 1 As shown, the introduction method of the weft yarn is the same as that of the second weft in Embodiment 1, and will not be repeated here.

[0050] The third step, the third...

Embodiment approach 3

[0054] A 2.5D conical profiling woven sleeve is prepared by using gradient cloth warp. The warp used in the woven cover is 480Tex×1 strand of high-strength glass fiber, the weft is 480Tex×2 strand of high-strength glass fiber, the thickness of the 2.5D woven cone is 3.0mm, and the diameter of the large end of the fabric is Φ=400± 1mm, the diameter of the small end is Φ=0mm. The fabric structure is a 2.5D woven shallow cross-linked structure, the number of warp yarns is designed to be 4 layers, the warp density of the fabric is 9 threads / cm, and the weft density is 4.0 threads / cm.

[0055] The weaving method of described woven cover comprises the following steps:

[0056] The first step, determine the total row number n=1132 of fabric warp yarn according to fabric circumference, determine the total number of layers m=8 of fabric warp yarn according to fabric thickness;

[0057] The second step, the main warp yarn arrangement: the warp yarns are arranged in the upper 4 layers ...

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 warp arrangement method of a 2.5D copying woven sleeve and the woven sleeve woven with the method. The warp arrangement method is a gradient warp arrangement process, namely,after main warps are arranged, two rows of edge warps in one group are arranged on the two sides of the main warps from the middle to two edges respectively in a gradient descending manner, and the edge warps are decreased progressively from an inner layer to an outer layer. The 2.5D cylindrical or tapered copying woven sleeve is prepared by adopting the gradient warp arrangement process, no gasexists between an upper piece and a lower piece of the prepared woven sleeve, and the phenomenon of non-uniformity does not exist.

Description

technical field [0001] The invention relates to the technical field of 2.5D three-dimensional weaving, in particular to a method for arranging warp yarns of a 2.5D profiling woven cover and weaving of a profiling woven cover. Background technique [0002] 2.5D weaving is a new type of weaving technology developed in recent years. It has the advantages of large-scale production capacity, relatively simple structure design and relatively stable manufacturing technology. It is a promising new type of composite material structure. The preformed fabric prepared by 2.5D textile has good structural integrity, which is conducive to improving the performance of the composite material, endowing the composite material with excellent interlaminar shear strength, excellent impact damage resistance, suitable toughness and high Specific strength, specific modulus, and fabrics of different profiles can be woven according to needs. [0003] Equal cross-section or variable cross-section tubu...

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 Applications(China)
IPC IPC(8): D03D25/00
CPCD03D25/005
Inventor 李丹丹李小欢朱梦蝶唐亦囡乔志炜
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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