Multi-layered warp knitted weft insertion weaving knitting composite structure and weaving method therefor and yarn feeding device

Abstract

The invention relates to a multi-layered warp knitted weft insertion weaving knitting composite structure and a weaving method therefor and a yarn feeding device. The composite structure comprises two weft plain knitting stitches; the weaving method comprises the following steps: 4 groups of warp yarn and 3 groups of weft yarn are respectively lined into stitch wales and longitudinal rows of the two weft plain knitting stitches, so that the textile fabric can be provided with multi-layers of warp yarn and multi-layers of weft yarn at the same time; layer number of weft knitted fabric in the textile fabric is increased; number difference of lined warp yarn and weft yarn is reduced; as a result, axial mechanical property differentiation of the textile fabric is reduced, thickness of the textile fabric is increased; in addition, the textile fabric features uniform thickness and symmetrical structure, which expands application thereof in composite materials.

Description

technical field [0001] The invention relates to a woven and knitted composite structure, a weaving method and a device thereof, in particular to a multi-layer warp and weft inlay woven and knitted composite structure, a weaving method and a yarn feeding device for a flat knitting machine. Background technique [0002] Weaving and knitting are two traditional textile processing methods for forming yarns into fabric structures. In the woven structure, since the warp and weft exist in an approximately straight line, they exhibit better structural stability, less extensibility, and lower elasticity when subjected to external forces. Difficult to layer, but poor formability; in the knitted structure, because the warp or weft mainly exists in the form of loops, when subjected to external force, the loops can be deformed, and the yarn can slip, showing greater extensibility And high elasticity, good formability, but poor structural stability. [0003] The woven and knitted compos...

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Problems solved by technology

[0004] But these existing multi-layer interlining technologies can line three groups of weft yarns in the ground weave courses, i.e. four layers of weft yarns, while only two layers of warp yarns can be lined between the wales of the ground weave loops. The number of layers is small, so there is a large difference in the number of interlinings between warp and weft yarns, the difference in the axial mechanical properties of the fabric is large, and the thickness of the fabric is small, which limits its application in composite materials to a certain extent.

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