CN1068607A

CN1068607A - A kind of new weaving method of three axial and orthogonal stereo fabric

Info

Publication number: CN1068607A
Application number: CN 92108506
Authority: CN
Inventors: 张仲槐; 吴以心; 蔡光
Original assignee: CHINESE TEXTILE UNIV
Current assignee: CHINESE TEXTILE UNIV
Priority date: 1992-07-18
Filing date: 1992-07-18
Publication date: 1993-02-03

Abstract

The present invention is a kind of new weaving method of weaving three axial and orthogonal stereo fabric.Fabric is made up of to yarn warp thread, weft yarn, Z.Warp thread is that heald frame is inserted in the multilayer arrangement, and by multi-arm control integrated box movement, shed open is that multilayer moves shed open, and two above wefting insertion pin bilaterals replace wefting insertion, and Z divides upper and lower two-layer to yarn, by heald frame control, and parallel positive conveying, insert in warp, the weft yarn.The present invention is half plain edge fabric, and boundless yarn and selvedge mechanism owing to adopt the page or leaf openings of combining, have increased the number of plies of fabric more.Width of fabric is 20-100mm.

Description

A kind of new weaving method of three axial and orthogonal stereo fabric

The present invention relates to weave three axial and orthogonal, selvedge be half plain edge, layer stereo fabric knitting method.

Fibre-reinforced composite is that the material by two or more different in kind combines by various processes on substantially.The material of forming plays synergy on performance, obtained incomparable, the more superior combination property of homogenous material.This class novel composite material has characteristics such as light weight, specific strength specific modulus height, good, wear-resisting, the anti-width of cloth of chemical stability are penetrated, anti-ablation, self-lubricating, has become the new engineering material that industrial departments such as aerospace, rocket, guided missile, aviation, machinery, weaving, building materials, shipbuilding are used.As the stereo fabric in the composite reinforced structure, in composite, used more and more widely.

Fibre-reinforced stereo fabric is to form the profile of composite and bear the suffered main load of material as the skeleton of composite.The forming process of stereo fabric has many kinds, as weave and hatching etc.The stereo fabric that is shaped with braiding and weaving method has many advantages, and the internal structure characteristics of this fabric are that fiber is a continuous fiber, and fibre-reinforced direction number is a three-dimensional or multidirectional.With this fabric is that the composite that strengthens skeleton has mechanics and the physical property more more superior than other fibre-reinforced composite.

The stereo fabric that is shaped with weaving method also has many kinds.Be applied to weave layer cloth or three layers of cloth such as cloth bag, flannelette, carpet in traditional weaving method, this fabric just can be made into ordinary loom or double rapier machine and dobby shedding mechanism, but the thickness of fabric has been subjected to certain restriction.As the fabric of composite reinforced structure, its thickness there is certain requirement, therefore use traditional weaving method fully, be to weave desirable stereo fabric on ordinary loom.

Abroad, U.S.'s patent No. on February 4th, 1992 be 5085252 patent be the 3-D sandwich construction fabric method as shown in Figure 2, warp thread is divided into multilayer and forms the multilayer shed open, but these shed opens are fixing shed open entirely, so the number of plies of fabric is restricted.This patent is still needed a limit yarn " gripping " warp thread to form selvedge, just needs a cover selvedge mechanism for this reason.

Domestic relevant document, the patent that has not yet to see the weaving method of similar three axial stereo fabrics.

The purpose of this invention is to provide one weave three axial and orthogonal, selvedge is method half plain edge, the layer stereo fabric.

Technical characterstic of the present invention is that warp thread is that multilayer is arranged and is divided into two groups and controlled by heald frame; Weft yarn is that the wefting insertion pin by both sides is introduced into shed open; The weft yarn of introducing both sides is caught on weft yarn by the crisperding pin of both sides; Z is divided into two-layer up and down to yarn, by two heald frame controls, Z is to the same parallel introducing with warp thread of yarn, and the Z of introducing vertically inserts between warp thread and weft yarn to yarn; Beat up with reed weft yarn is pressed into fell.Another characteristics of the present invention are, the warp thread that multilayer is arranged is divided into two groups, and wherein one group of warp thread does not carry out harness motion for fixing in weaving process; Another group warp thread carries out harness motion in weaving process, form mobile shed open.The warp thread number of plies of the present invention in addition can be selected according to the desired number of plies of fabric.In this weaving method, be used for the radical of every group of wefting insertion pin of wefting insertion can be more than two according to shed open number decision.The method of wefting insertion is that weft yarn is alternately introduced shed open from bilateral.Another characteristics of the present invention are that reed is flat motion.Z can actively control according to the number of plies of requirement fabric to the thread-feeding amount of yarn.According to above-mentioned weaving method, be woven into the stereo fabric of the number of plies that requires.

In conjunction with Fig. 1 operation principle of the present invention is set forth as follows: the warp thread that multilayer is arranged on the warp shaft 1 is divided into two groups, one group of thread layer penetrates top shed heald frame 5 and lower shed heald frame 3 through the top shed back rest 2 and the lower shed back rest 11 respectively, this group warp thread carries out the upper and lower opening motion in weaving process, alternately to form the multilayer shed open; Another group thread layer penetrates static heald frame 4, and this group thread layer does not carry out the upper and lower opening motion for what fix in weaving process.The yarn of Z on yarn axle 12, be divided into two-layer up and down control and penetrate heald frame 6 by two heald frames, the weft yarn (not shown) is alternately introduced the multilayer shed open by two groups of wefting insertion pins 9 from both sides, each crisperding pin 7 by offside of weft yarn of introducing shed open catches on it, and weft yarn is squeezed into fell by reed 10, form stereo fabric 8.

Thread layer of the present invention is a multilayer, and it is divided into two groups, and one group is fixing, need not carry out the upper and lower opening motion in weaving process.Another group thread layer must carry out the upper and lower opening motion in weaving process, alternately form the multilayer shed open.By the movement of the warp in the dobby shedding mechanism controls heald frame, the number of plies of fabric can increase greatly, to satisfy the needs of heavy weave.As adopt 16 pages to combine, and the maximum number of plies warp thread of fabric can be 13 layers, and weft yarn is 14 layers.Because the present invention is a double weft two way alternate wefting insertion, with the fabric that this Weft insertion method is woven into, its selvedge is half plain edge, so just need not use the limit yarn, thereby simplify selvedge mechanism.

The present invention has following accompanying drawing:

Fig. 1 is a weaving principle schematic diagram of the present invention.

Fig. 2 is the fabric knitting principal diagram intention of United States Patent (USP) 3-D sandwich construction.

Fig. 3 is a three-dimensional orthogonal stereo fabric organization chart of the present invention.

Fig. 4 weaves working cycle diagram for the present invention.

Fig. 5 is the multi-arm pegging plan of gaiting.

Embodiment of the

present invention

1,4,5 are exemplified below in conjunction with the accompanying drawings:

Be example with the fixing thread layer of one deck and the thread layer of six layers of motion now, every group of required latitude pin number of this fabric construction is two.The loom working cycle diagram of this fabric as shown in Figure 4, pegging plan is gaited as shown in Figure 5 by dobby shedding mechanism, the heald frame number is 9, period is 8, wherein Z penetrates heald frame 1,2 to yarn, and the motion warp thread penetrates

heald frame

3,4,5,7,8,9, and the stationary warp layer penetrates combines 6.The order of gaiting is 1,3,4,5,6,7,8,9; 2,3,4,5,6,7,8,9, circulation successively.The installation of each heald frame is all different with traverse.Heald frame the 1, the 2nd, full traverse, all the other are half traverse.Heald

frame

3,4,5 is in top shed motion, and

heald frame

7,8,9 moves at lower shed.Two wefting insertion pins of loom one side are introduced two weft yarns respectively in upper and lower two shed opens then.When weft yarn was guided to offside, this side had crisperding pin vertical direction below fabric to rise to grip weft yarn.Thereafter draw yarn pin rollback, reed beats up, the crisperding pin is backed off.After one side wefting insertion was finished, opposite side began wefting insertion.Left and right sides wefting insertion each four times, promptly wefting insertion is finished a weave cycle for eight times.In each weave cycle, batch with Z and carry out once respectively or secondary to sending of warp thread.

Claims

1, a kind of weaving method of three axial and orthogonal stereo fabric is characterized in:

(1) the warp thread multilayer is arranged, by every layer of movement of the warp of heald frame control;

(2) by the wefting insertion pin of loom two sides weft yarn is introduced shed open;

(3) weft yarn of Yin Ruing is caught on weft yarn by the crisperding pin of both sides;

(4) Z that introduces with warps parallel is divided into upper and lower two-layerly to yarn, and by two heald frames controls, Z vertically inserts between warp thread and the weft yarn to yarn;

(5) beat up by reed, weft yarn is pressed into fell.

2, the weaving method of three axial and orthogonal stereo fabric according to claim 1 is characterized in that the warp thread that multilayer is arranged is divided into two groups, and wherein one group of warp thread does not carry out harness motion for what fix in weaving process; Another group warp thread carries out harness motion in weaving process, form mobile shed open.

3, the weaving method of three axial and orthogonal stereo fabric according to claim 1 and 2 is characterized in that the number of plies of warp thread can be selected according to the desired number of plies of fabric.

4, the weaving method of three axial and orthogonal stereo fabric according to claim 1 is characterized in that the radical of every group of wefting insertion pin determines to can be more than two according to the shed open number.

5,, it is characterized in that weft yarn is that bilateral is alternately introduced shed open according to the weaving method of claim 1 or 4 described three axial and orthogonal stereo fabrics.

6, the weaving method of three axial and orthogonal stereo fabric according to claim 1 is characterized in that reed is parallel motion.

7, the weaving method of three axial and orthogonal stereo fabric according to claim 1 is characterized in that Z can actively control according to the thickness requirement of fabric to the thread-feeding amount of yarn.

8, the weaving method of three axial and orthogonal stereo fabric according to claim 1 is characterized in that by the woven fabric of this method.