Method for knitting 2.5-dimension integral knit multiple-pass fabric
An integral weaving, multi-pass tube technology, applied in the directions of braids, fabrics, textiles, etc., can solve the problems of weak mechanical properties at the interlacing of the fabric interface, difficult to control the uniformity and consistency of the fabric, and difficult to guarantee the quality. The effect of improving the hole phenomenon, ensuring the overall density uniformity and high damage tolerance
Active Publication Date: 2010-09-29
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is that the overall profiling weaving of the 2.5-dimensional multi-way pipe fabric is difficult, the uniformity and consistency of the fabric are difficult to control, the mechanical properties of the interweaving part of the fabric interface are weak, and the quality is difficult to guarantee. Weaving method of 2.5-dimensional overall braided multi-way tubular 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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Embodiment
[0026] Example: The fabric adopts a 2.5-dimensional shallow cross-bending structure
[0027] Referring to Figure 1, the following takes the 2.5-dimensional four-way pipe as an example to describe the process implementation method in detail. As shown in Figure 1, we divide the fabric into two parts: the connector B and the through pipe A; according to the weaving process, the sphere part is divided into three parts (C, D, E in Figure 1): the upper hemisphere part, the arc between the through pipes segment and the lower hemisphere. The weaving sequence is shown in Figure 1: 12→13→14→15→16→17.
[0028] The present invention is described in further detail below.
[0029] The upper hemisphere of the fabric realizes the increase of the warp by shifting and adding yarns. We assume that the number of warp layers of the fabric is 8 layers. The specific operation is as follows:
[0030] (1) Referring to Figure 2, in the shallow cross-bending structure of 2.5-dimensional fabrics, two ...
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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The invention relates to a weave method of 2.5-dimensional overall braided multi-through pipe fabric. The weave method is characterized in that (1) the structure of the fabric adopts a 2.5-dimensional shallow-cross bended-connection structure; (2) the overall weaving of the fabric adopts core imitation-shaped weaving to ensure the internal molded surface dimension of the fabric; (3) the fabric isdivided into two parts, namely a connecting body part and a through pipe part, wherein the connecting body is a part connected with the through pipes, while the through pipes are connected through the same connecting body; (4) the lower section of each through pipe is provided with warp yarns of the part in advance; (5) weft yarns between through pipes in the same plane are lined between the warpyarns layer by layer through adopting a weft insertion process; (6) when the horizontal section of the connecting body increases, warp yarns are increased through adopting a shift yarn adding method,and the method can effectively improve the hole phenomenon in yarn-adding points; and (7) when the horizontal section of the connecting body decreases, warp yarns are reduced through adopting a shiftyarn reduction method. The 2.5-dimensional multi-through pipe fabric woven by the weave method has the advantages of better overall property, controllable shaping, high damage tolerance, excellent performances of impact resistance, delamination resistance, fatigue resistance, and the like.
Description
technical field [0001] The invention relates to a weaving process for special-shaped fabrics, in particular to an integral weaving technique for multi-pass tubular fabrics, and belongs to the technical field of three-dimensional fabric weaving. Background technique [0002] The overall weaving and molding of the multi-way pipe fabric is the technical key of the present invention. At present, there is an urgent demand for this type of fabric in China, and its potential application fields are also wide. The integrity, dimensional accuracy, density uniformity and batch consistency of the multi-way pipe fabric are the key control indicators of the present invention, especially the performance of the joints of various parts of the fabric is the key to design and control. [0003] An important application direction of this kind of fabric is to replace the metal structural materials used in satellite engine brackets, so as to reduce the weight of satellite structures, increase sat...
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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IPC IPC(8): D03D3/00D03D13/00D04C1/00
Inventor 蒋云朱梦蝶朱建勋吴超
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD