A tubular multilayer multiaxial warp knitting machine

Abstract

The invention relates to a preparation method of a tubular multilayer multiaxial warp knitting machine. The method is mainly realized through the following steps: provide multiple layers of weft laying carriers that can rotate relatively on the circular needle bed and distribute them in different circle layers, lay weft at multiple angles along different directions, and then send it into the loop forming mechanism through the transmission mechanism, and pass the vertical The crochet needles arranged on the weft yarn hook the binding yarn into the weft yarn layer to weave into loops, and finally exit the knitting area through the pulling and crimping mechanism, thereby completing the weaving of the tubular multi-layer warp knitted fabric.

Description

technical field [0001] The invention aims to study a preparation method of a tubular multilayer multiaxial warp knitting machine, which belongs to the field of textile processing and textile machinery. technical background [0002] Multi-axial warp knitting technology is a new type of multi-head weft-inserted knitting technology developed on the basis of uniaxial and biaxial technology. Using this technology, yarns can be interleaved at different angles in multiple directions of the fabric, and then woven into the desired fabric through the loop forming mechanism. This technology avoids the defects that the traditional woven fabric yarn structure is curved and the performance of the yarn cannot be fully utilized, and fully utilizes the advantages of each component in the fabric structure, so that the fabric's tensile properties, elastic modulus, Various performances such as drapability are improved. This kind of multi-axial warp knitting product, which combines the structu...

AI Technical Summary

Problems solved by technology

Compared with braided fabrics, three-dimensional woven fabrics have a tighter structure, lower prices, and are widely used. However, during the production process, the mechanical movement is complex, and the friction between yarns is large, which easily causes fiber damage and affects production efficiency.

Compared with woven products, three-dimensional braids overcome the layering phenomenon of fibers, and are easy to form different shapes required for production, but at the same time, the formed weaving structure is easy to loose, which limits the improvement of weaving level

In foreign countries, U.S. Patent US20110014403 A1 discloses a method and equipment for weaving integrated tubular multi-layer fabrics, but the tubular length of the equipment can be woven at one time is limited, the yarn bobbin is placed inside the machine, and the volume is small Less, lower practical performance

[0007] It can be seen that the technology of combining tubular fabrics with multi-layer fabrics is not mature enough

The warp knitting machine that can weave tubular multi-layer warp knitted fabric can not only break the development limitations of traditional warp knitting machines, but also simplify the weaving equipment of three-dimensional fabrics, and solve the problem of high production cost of composite material three-dimensional fabrics in the prior art, complicated weaving equipment and difficult production Slow speed and poor production continuity

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