Knitting method of adjacent-connection-type hollow knitted fabric

A braided and hollow technology is applied in the field of braiding of adjacent hollow braids, which can solve the problems of insufficient utilization of the tensile modulus of braided yarns, damage damage, easy diffusion of hollow structures, etc., so as to enhance the ability to resist damage, The effect of improving the utilization rate and reducing the degree of tortuosity

Inactive Publication Date: 2013-06-19
JIANGNAN UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages that the existing three-dimensional braided fabrics cannot make full use of the tensile modulus of the braided yarns because the braided yarns zigzag from one side to the other in the braided fabric, and the damage is easy to spread and it is difficult to form a hollow structure. , the primary purpose of the present invention is to provide a hollow braid, the hollow braid can not only improve the utilization rate of yarn tensile modulus, but also effectively limit the expansion and extension of braid damage, the second purpose is to provide a A method of weaving the above-mentioned hollow braided 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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Knitting method of adjacent-connection-type hollow knitted fabric
  • Knitting method of adjacent-connection-type hollow knitted fabric
  • Knitting method of adjacent-connection-type hollow knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The structural unit of the adjacent connected hollow braided fabric of the present invention and its braiding method on a vertical and horizontal rectangular braiding machine

[0018] For the convenience of describing and understanding the "closely adjacent to intertwining" braid structure of this embodiment, at first by means of figure 1 , figure 2 and image 3 From the shallower to the deeper, the concept of hollow and the structure and composition of "next to each other" are described.

[0019] exist figure 1 , shows the schematic diagram of the knitting yarn in the adjacent continuous hollow braided fabric around the mold. All braiding yarns 1, 2, 3, 4, 5, 6, 7 are distributed around the mould, and if figure 2 , image 3 and Figure 4 As shown, each braided yarn is only limited to a small range with itself as the center and adjacent yarns as the border in the braided fabric. In this embodiment, the braided yarn is in a helical state and has it...

Embodiment 2

[0028] Embodiment 2: Rectangular adjacent connected hollow braided fabric and its weaving method on a vertical and horizontal rectangular braiding machine

[0029] Carry out the braiding of the square hollow braid on the vertical and horizontal rectangular three-dimensional braiding machine with the carbon fiber whose thickness is 6k.

[0030] The yarns are first arranged around the die 8 on the weaving machine. The yarn arrangement of one of the four sides of the rectangular adjacent hollow braided fabric is as follows: Figure 8 As shown in (1), Figure 7 Each "●" in represents a knitting yarn, which corresponds to the rectangular shape and size of the side to be woven in this example. The yarns are arranged in a row or column in a row or row, and the yarns are arranged in an aligned manner in every other row or column, and the yarns are arranged in an adjacent row or column. arranged in a staggered manner.

[0031] The yarns on the other three sides of the rectangular a...

Embodiment 3

[0033] Embodiment Three: Ring-shaped adjacent-connected hollow braided fabric and its braiding method on a circular three-dimensional knitting machine

[0034] The direct roving glass fiber with a thickness of 1200tex is braided on a ring rail-shooting type circular three-dimensional knitting machine.

[0035] The yarn is first arranged on the loom. Corresponding to the size of the circular knitting body to be braided in this example, the yarn is arranged around the mold 8 in checkers mode on each ring rail or each shooting rail of the circular knitting machine in a row-by-row mode. The knitting yarns in the ring track or shooting track are arranged in an aligned manner, while the knitting yarns in the adjacent ring track or shooting track are distributed in a staggered manner.

[0036] Then carry out the braiding of the circular adjacent continuous type hollow braided fabric. Except that the step size of each step is 2, the four-step braiding is carried out in the same way ...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an adjacent-connection-type hollow knitted fabric. According to the invention, a hollow structure can easily be formed, and knitting yarn modulus utilization rate can be improved. According to the invention, all knitting yarns are distributed in the knitted fabric with a checkers-type arrangement manner around a mold; each knitting yarn in the knitted fabric forms and only forms exchanges with surrounding adjacent knitting yarns around a long-straight-shape position central line of itself. Therefore, all knitting yarns are connected into an integral hollow knitted fabric with the adjacent-connection manner. Each knitting yarn only extends in a limited range in which the position central line of itself is adopted as a center and the adjacent knitting yarns are adopted as a boundary, and the position central line is the long-straight-shape on the length direction of the knitted fabric. Therefore, the hollow shape is formed, and a bending degree and a bending distribution range of each knitting yarn are reduced. Therefore, the purpose for increasing knitting yarn tensile modulus utilization rate is achieved.

Description

Technical field [0001] The invention relates to a method for weaving hollow braided fabrics, in particular to an adjacent-connected hollow braided fabric that can reduce the bending degree and meandering distribution range of each braided yarn in the braided fabric to improve the utilization rate of the tensile modulus of the braided yarns , the braid is used as a composite reinforcement. Background technique [0002] At present, the known three-dimensional braids used as composite material reinforcements are formed by intertwining all or part of the yarns that make up the braids. It is difficult to weave into a hollow shape, especially a large hollow braid. Because, whether it is the usual four-step weaving method or the two-step weaving method, whether it is obtained by a rectangular knitting machine or a circular knitting machine, and whether it is obtained by a vertical and horizontal knitting machine or a rotary spindle knitting machine Yes, any braiding yarn that play...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D04C1/00
Inventor周罗庆周頔
OwnerJIANGNAN UNIV