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A multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device and weft insertion method

A technology of weft insertion device and preform, which is applied in textiles, textiles, papermaking, looms, etc., can solve the problems of low weaving efficiency of multi-layer three-dimensional preforms, and achieve simple structure, simple mechanism movement and convenient use Effect

Active Publication Date: 2018-02-27
SINOMA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of low weaving efficiency of multi-layer three-dimensional preforms in the prior art, the present invention provides an asymmetric two-way rapier weft insertion device for multi-layer three-dimensional preforms and a weft insertion method thereof

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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  • A multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device and weft insertion method
  • A multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device and weft insertion method

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Such as figure 1 As shown, the asymmetric two-way rapier weft insertion device for a multi-layer three-dimensional preform includes a first rapier weft insertion device and a second rapier weft insertion device; the first rapier weft insertion device includes a first rapier system, a second rapier weft insertion device A horizontal motion device and a first up and down motion device; the second rapier weft insertion device includes a second rapier system, a second horizontal motion device and a second up and down motion device;

[0051] The first rapier system includes a first rapier and a first rapier connecting rod, the first rapier is arranged at one end of the first rapier connecting rod; the first horizontal movement device includes a first rapier bracket, a first rapier box and the first pneumatic device, the first rapier box includes a first upper bottom plate and a first lower bottom plate, the first rapier bracket is arranged between the first upper bottom plat...

Embodiment 2

[0056] Taking the design length of 1000 mm, width of 400 mm, and thickness of 9 mm multi-layer three-dimensional preform as an example, it adopts a shallow cross-bending and continuous weaving structure, and the design warp and weft yarns are quartz glass fibers, and the warp yarn specification is 190Tex×4 strands , the density is 9 strands / cm, and the number of layers is 10 layers; the weft yarn specification is 190Tex×7 strands, and the density is 2 strands / cm. Such as figure 2 As shown, using the multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device in Example 1 for weft insertion, the specific weaving steps are as follows:

[0057] 1. First, according to the law of motion of the weaving structure, all the warp yarns in the first layer of odd columns are raised to the height of movement, and the first pneumatic device on one side drives the first rapier connecting rod to move horizontally on the first rapier bracket, thereby driving The fir...

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 an asymmetric two-way rapier weft insertion device for a multi-layer three-dimensional preform and a weft insertion method thereof. Multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device, including a first rapier weft insertion device and a second rapier weft insertion device; the first rapier weft insertion device includes a first rapier system, a first horizontal movement device and the first up and down movement device; the second rapier weft insertion device includes the second rapier system, the second horizontal movement device and the second up and down movement device; the first rapier weft insertion device is opposite to the second rapier weft insertion device Set, and the first rapier weft insertion device is higher than the second rapier weft insertion device. The multi-layer three-dimensional preform asymmetric two-way rapier weft insertion device of the present invention has a simple structure and is convenient to use; the movement of the mechanism is simple during weft insertion, and the weft insertion can be performed synchronously on both sides of the device respectively, and the weaving forming efficiency is significantly improved.

Description

technical field [0001] The invention relates to an asymmetric two-way rapier weft insertion device for a multilayer three-dimensional preform and a weft insertion method thereof, belonging to the field of fabrics. Background technique [0002] Multi-layer three-dimensional preforms usually have high thickness, large size, and complex shape. Due to the large number of layers of the preform, the weft insertion movement has become one of the key technical points in the preparation and molding. Usually, the traditional multi-layer three-dimensional preform adopts three or more rapier alternate weft insertion motions and single rapier movable weft insertion motion, in which more than three rapier alternate weft insertion devices are designed on the same side, weft insertion The movement is that each rapier introduces the weft yarn from top to bottom in the weft insertion area in turn. The design of the weft insertion device is complicated and the weaving efficiency is low; The d...

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 Patents(China)
IPC IPC(8): D03D47/18
CPCD03D47/18
Inventor 赵谦张立泉李超郭洪伟
Owner SINOMA SCI & TECH