CN1540052A - Method for weaving 3D textile with variable cross section appicable to composite material - Google Patents
Method for weaving 3D textile with variable cross section appicable to composite material Download PDFInfo
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- CN1540052A CN1540052A CNA2003101039299A CN200310103929A CN1540052A CN 1540052 A CN1540052 A CN 1540052A CN A2003101039299 A CNA2003101039299 A CN A2003101039299A CN 200310103929 A CN200310103929 A CN 200310103929A CN 1540052 A CN1540052 A CN 1540052A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000009941 weaving Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims description 14
- 239000004753 textile Substances 0.000 title 1
- 239000004744 fabric Substances 0.000 claims abstract description 41
- 239000002759 woven fabric Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 3
- 230000008520 organization Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Abstract
A method for weaving the cross section variable 3D stereo fabric used for composition is disclosed. On the basis of planar orthogonal 3D stereo structure, changing the moving rule of vertical yarn can form a longitudinal cross section variable orthogonal stereo structure, resulting in that the part of warp is floating on the fabric and the vertical yarn is always woven. For the transverse cross section variable stereo structure, if the number of weft layers for various regions is Lwi, the number Rwi of its cycles, the number Lti of warp layers, the number Rti of wary cycles and the minimal number Hi of heddles in each region can be derived.
Description
Technical field
The present invention relates to a kind of weaving method of particular fabric, particularly relate to a kind of weaving method that is used for the variable cross-section three dimension stereo fabric of composite.
Background technology
Composite is another new material after metal material occurs, and has all obtained good application in Aero-Space, military products and civilian goods.In the practical application of composite, not only need the constant member of cross sectional shape, the complex component that also needs cross sectional shape to change.The high-performance composite materials of moulding as a whole just press for the fabric preform of corresponding variable cross-section shape.
Summary of the invention
Purpose of the present invention is exactly in order to solve above-mentioned described problem, and a kind of weaving method that is used for the variable cross-section three dimension stereo fabric of composite is provided.Weave out the fabric preform of variable cross-section shape, the high performance complex component that also needs cross sectional shape to change.
The present invention is achieved through the following technical solutions above-mentioned purpose.This weaving method that is used for the variable cross-section three dimension stereo fabric of composite, 1) on the basis of plane quadrature 3-D solid structure, by changing the characteristics of motion of the yarn that hangs down, can form longitudinal variable cross-section orthogonal stereo structure, each comprised when interweaving rule different that change of the yarn that hangs down through the meeting of weft layers number, the warp thread that is straight distribution is not inweaved within the fabric because of the variation of cross sectional shape at different positions but is floated over outside the fabric with the form of long flotation line, but the yarn that hangs down is in the state that interweaves all the time, and the different numbers of plies are interconnected to integral body through weft yarn.2), the formation method of horizontal variable cross-section Woven Fabrics Structure, if laterally the variable cross-section Woven Fabrics Structure is made up of n section, the weft yarn number of plies of each section be respectively Lwi (i=1,2,3,4 ..., n), then can extrapolate weft yarn period Rwi, warp thread number of plies Lti, warp thread period Rti, the minimum heddle (heald) of each section and count Hi, then the required total heddle (heald) number of horizontal variable cross-section orthogonal stereo machine-knitted structure that should be made up of the N section is Ht.
Described plane quadrature 3-D solid structure is, one group of warp thread and one group of weft yarn also have one group to play and connect each layer through the effect of the weft yarn yarn that hangs down, and making three directions in the fabric is warp-wise, broadwise and thickness direction, all has yarn to exist.
The horizontal formation method of variable cross-section orthogonal stereo machine-knitted structure, they can be respectively with following various calculating:
Rwi=2×Lwi,(i=1、2、3、4、……、n)
Lti=Lwi-1,(i=1、2、3、4、……、n)
Rti=Lwi-1+2=Lwi+1,(i=1、2、3、4、……、n)
Hi=Rti
Then should be Ht=H1+H2+H3+ by the required total heddle (heald) number of the horizontal variable cross-section orthogonal stereo machine-knitted structure that the N section is formed (or total line pin number) ... + Hn.
Weft yarn period when for simplicity, table 1 has been listed each weft yarn number of plies, the warp thread number of plies, warp thread period and minimum heddle (heald) number.
The relation of the table 1 orthohormbic structure weft yarn number of plies and weft yarn period, the warp thread number of plies, warp thread period and minimum heddle (heald) number
Weft yarn number of plies Lw | Weft yarn period Rw | Warp thread number of plies Lt | The yarn radical hangs down | Warp thread period Rt | Minimum heddle (heald) is counted H |
??1 | ??2 | ??0 | ??2 | ????2 | ????2 |
??2 | ??4 | ??1 | ??2 | ????3 | ????3 |
??3 | ??6 | ??2 | ??2 | ????4 | ????4 |
??4 | ??8 | ??3 | ??2 | ????5 | ????5 |
??5 | ??10 | ??4 | ??2 | ????6 | ????6 |
??6 | ??12 | ??5 | ??2 | ????7 | ????7 |
??7 | ??14 | ??6 | ??2 | ????8 | ????8 |
??8 | ??16 | ??7 | ??2 | ????9 | ????9 |
??9 | ??18 | ??8 | ??2 | ????10 | ????10 |
??10 | ??20 | ??9 | ??2 | ????11 | ????11 |
??11 | ??22 | ??10 | ??2 | ????12 | ????12 |
??12 | ??24 | ??11 | ??2 | ????13 | ????13 |
??… | ??… | ??… | ??… | ????… | ????… |
The horizontal formation method of the accurate orthogonal stereo machine-knitted structure of variable cross-section, they can be respectively with following various calculating:
Rwi=2×Lwi,(i=1、2、3、4、……、n)
Lti=2×Lwi,(i=1、2、3、4、……、n)
Rti=Lti+2,(i=1、2、3、4、……、n)
Then the required total heddle (heald) number of being made up of the N section (or total line pin number) of the accurate orthogonal stereo machine-knitted structure of horizontal variable cross-section is Ht=H1+H2 3+ ... + Hn.
As with foregoing longitudinal variable cross-section and laterally the Woven Fabrics Structure of variable cross-section combine and can form in length and breadth to two-way variable cross-section Woven Fabrics Structure.Adopt orthohormbic structure to make two-way in length and breadth variable cross-section stereo fabric construction by structure, its structure Design method can according to design earlier determine the sector number of horizontal variable cross-section and each section through weft yarn initial layers number, the warp-wise variable cross-section in each section is determined in design again.It must be noted that variable cross-section can be designed to the single face variation of fabric, also can change simultaneously the front-back two-sided of fabric.
The effect that the present invention is useful: a kind of weaving method that is used for the variable cross-section three dimension stereo fabric of composite is provided.Weaving method is practical, uses easy to operate.
Description of drawings
Fig. 1 is a plane three-dimensional orthogonal perspective view of the present invention;
Fig. 2 is vertical quadrature variable cross-section three-dimensional structure diagram of the embodiment of the invention 1;
Fig. 3 is the looming draft of the embodiment of the invention 1;
Fig. 4 is the vertical accurate quadrature variable cross-section three-dimensional structure diagram of the embodiment of the invention 2;
Fig. 5 is the looming draft of the embodiment of the invention 2;
Fig. 6 is the longitudinal variable cross-section angle interlock figure of the embodiment of the invention 3;
Fig. 7 is the looming draft of the embodiment of the invention 3;
Fig. 8 is the horizontal variable cross-section orthogonal stereo machine-knitted structure figure of the embodiment of the invention 4;
Fig. 9 is the longitdinal cross-section diagram of each section of the embodiment of the invention 4;
Figure 10 is the organization rule and the looming draft of each section of the embodiment of the invention 4;
Figure 11 is the horizontal variable cross-section orthogonal stereo structure looming draft of the embodiment of the invention 4;
Figure 12 is the accurate orthogonal stereo machine-knitted structure of the horizontal variable cross-section figure of the embodiment of the invention 5;
Figure 13 is the organization rule and the looming draft of each section of the embodiment of the invention 5;
Figure 14 is the accurate orthogonal stereo structure of the horizontal variable cross-section looming draft of the embodiment of the invention 5;
Figure 15 is each section figure of two-way in length and breadth single face variable cross-section of the embodiment of the invention 6;
Figure 16 is that the section 1 of the embodiment of the invention 6 is indulged (warp) to three-dimensional structure diagram;
Figure 17 is that the section 2 of the embodiment of the invention 6 is indulged (warp) to three-dimensional structure diagram;
Figure 18 is that the section 3 of the embodiment of the invention 6 is indulged (warp) to three-dimensional structure diagram;
Figure 19 is the two-way in length and breadth single face variable cross-section orthohormbic structure looming draft of the embodiment of the invention 6;
Figure 20 is each section figure of two-way in length and breadth two-sided variable cross-section of the embodiment of the invention 7;
Figure 21 is that the section 1 of the embodiment of the invention 7 is indulged (warp) to three-dimensional structure diagram;
Figure 22 is that the section 2 of the embodiment of the invention 7 is indulged (warp) to three-dimensional structure diagram;
Figure 23 is that the section 3 of the embodiment of the invention 7 is indulged (warp) to three-dimensional structure diagram;
Figure 24 is the two-way in length and breadth two-sided variable cross-section orthohormbic structure looming draft of the embodiment of the invention 7;
The specific embodiment
Be further described below in conjunction with embodiment and accompanying drawing.
Embodiment 1: the weaving method of the three-dimensional woven fabric of longitudinal variable cross-section orthohormbic structure.
Figure 1 shows that plane three-dimensional orthogonal stereochemical structure.Its design feature is except that one group of warp thread and one group of weft yarn are arranged, and also has one group of warp thread to play and connects the effect of each layer through weft yarn.Just because of the existence of the yarn that hangs down, make three directions (warp-wise, broadwise and thickness direction) in the fabric all have yarn to exist, guaranteed the mechanical performance of its composite in all directions, especially guaranteed the raising of thickness directional properties.
On the basis of plane quadrature 3-D solid structure, by changing the characteristics of motion of the yarn that hangs down, can form longitudinal variable cross-section orthogonal stereo structure, among Fig. 2, positive and negative two whiles of fabric reduce the number of plies of yarn in stereo fabric gradually.As can be seen from Figure 2, the warp thread that is straight distribution might be not be inweaved within the fabric but is floated over outside the fabric with the form of long flotation line because of the variation of cross sectional shape at different positions, but the yarn that hangs down is in the state that interweaves all the time, and the different numbers of plies are interconnected to integral body through weft yarn.
Organization chart structure for longitudinal variable cross-section orthogonal stereo structure is done, then be similar to plane quadrature 3-D solid structure, different is, and the hang down rule that interweaves of yarn changes each comprised when interweaving rule different through the meeting of weft layers number that change of the yarn that hangs down simultaneously because of the variation in cross section thereupon.Be noted that simultaneously, although in the part of stereo fabric front, reverse side or positive and negative tiling warp thread is not interleaved in because of the variation of cross sectional shape, but still need take into account when structure is made organization chart or looming draft, promptly these warp thread in the front are in the state that floats (through interlacing point) all the time.Fig. 3 is the looming draft of Fig. 2 structure.
Embodiment 2: the weaving method of the three-dimensional woven fabric of the accurate orthohormbic structure of longitudinal variable cross-section.
Adopt accurate orthogonal stereo structure can make the three-dimensional woven fabric structure of the accurate orthohormbic structure of longitudinal variable cross-section by structure equally.Fig. 4 is along the variable section structure of positive unidirectional minimizing through the weft layers number.Fig. 5 is the looming draft of the accurate orthohormbic structure of Fig. 4 longitudinal variable cross-section.Its structure is made method and then is similar to longitudinal variable cross-section orthohormbic structure in the foregoing description 1, no longer repeats here.
Embodiment 3: the weaving method of the three-dimensional woven fabric of longitudinal variable cross-section angle interlock.
Be similar to longitudinal variable cross-section orthogonal stereo fabric structure, on the basis of plane angle interlocking stereochemical structure, can form longitudinal variable cross-section angle interlock equally.Fig. 6 is for to reduce the yarn number of plies (from initial being reduced to through 3 layers of 5 layers of latitudes through 7 layers of 10 layers of latitudes) simultaneously along positive and negative two directions of stereo fabric, and Fig. 7 is the looming draft of Fig. 6 longitudinal variable cross-section angle interlock.
Embodiment 4:
Laterally the formation principle of the three-dimensional woven fabric of variable cross-section is according to the difference of stereo fabric construction the warp thread of the different numbers of plies to be arranged according to the variation in cross section, introduce the wefting insertion route of weft yarn simultaneously, can design its organization chart and looming draft according to the organization rule of this broadwise sectional view and various Woven Fabrics Structure.
Figure 8 shows that the horizontal variable cross-section orthogonal stereo machine-knitted structure figure that adopts said method to be drawn as.Lateral cross section is divided into three sections among the figure, and the weft yarn number of plies of each section is respectively 6 layers, 4 layers and 3 layers, and corresponding warp thread then is respectively 5 layers, 3 layers and 2 layers.Owing to be the orthogonal stereo structure, two vertical yarns (i.e. a among the figure and b) are arranged respectively after each file warp thread.
Want structure to make the tissue of this stereochemical structure, must first structure make the tissue of each section in the lateral cross section, for this reason can be earlier vertical (being warp-wise) sectional view 2-of each section be drawn, as shown in Figure 9.According to structure chart shown in Figure 9, can make the organization chart and the looming draft of each section, as shown in figure 10.
According to the organization rule of each section of Figure 10, can form the tissue and the looming draft of horizontal variable cross-section orthogonal stereo machine-knitted structure, as Figure 11 as showing.In gaiting the design of rule, adopt this looming draft subregion to wear method.It is worthy of note, because laterally variable cross-section orthogonal stereo machine-knitted structure is different in the number of plies of different section longitude and latitude yarns, so in order to form desirable stereochemical structure, it will be different that every reed of the interior warp thread of each section penetrates number.
The tissue or the looming draft rule of the horizontal variable cross-section orthogonal stereo machine-knitted structure of being made up of n section just can obtain as follows.Then adopt subregion to wear method for the rule of gaiting, the heddle (heald) number of partitions should equal sector number n.Then adopt one in each district along wearing method, a suitable cycle-index of wearing then depends on the width or the warp thread radical of this section.And the card rule is placed side by side with the card rule of each section by only needing, and is noted that just first latitude in each section all should be on same latitude.For example in the looming draft in Figure 11, the first latitude card of second and third section should be respectively aligns with the 1st latitude and the 7th latitude in the pegging plan.
Certainly, if laterally in the variable cross-section orthogonal stereo machine-knitted structure, the bottom surface is not like that concordant, but the bottom surface also resemble above change, then at this moment, except the generation method of the card rule of each section changed to some extent, all the other were all identical.
Embodiment 5: the three-dimensional accurate orthogonal woven structure of horizontal variable cross-section
Be similar to the formation of orthogonal woven structure, adopt accurate orthogonal woven structure also can form horizontal variable cross-section stereo fabric, different is the warp thread radical between every layer of weft yarn and interweaves different when concerning with the employing orthohormbic structure.Figure 12 is horizontal (broadwise) sectional view of the three-dimensional accurate orthogonal woven structure of horizontal variable cross-section be made up of three sections, and in this structure, the weft yarn number of plies of three sections is respectively 4 layers, 3 layers and 2 layers.For further seeing the relation of interweaving through weft yarn of each section clearly, Figure 13 has provided vertical (warp-wise) sectional view and the corresponding looming draft of three sections.Adopt the method identical can form the tissue and the looming draft of the accurate orthogonal stereo machine-knitted structure of horizontal variable cross-section, as shown in figure 14 with orthohormbic structure.
To ordinary circumstance, if laterally the accurate orthogonal stereo machine-knitted structure of variable cross-section is made up of n section, the weft yarn number of plies of each section be respectively Lwi (i=1,2,3,4 ..., n), then can extrapolate weft yarn period Rwi, warp thread number of plies Lti, warp thread period Rti, the minimum heddle (heald) of each section equally and count Hi, they can be respectively with following various calculating:
Rwi=2×Lwi,(i=1、2、3、4、……、n)
Lti=2×Lwi,(i=1、2、3、4、……、n)
Rti=Lti+ 2,(i=1、2、3、4、……、n)
Hi=Rti
Then the required total heddle (heald) number of being made up of the N section (or total line pin number) of the accurate orthogonal stereo machine-knitted structure of horizontal variable cross-section is Ht=H1+H2+H3+ ... + Hn.
Weft yarn period when table 2 has been listed each weft yarn number of plies, the warp thread number of plies, warp thread period and minimum heddle (heald) number.
The relation of the table 2 accurate orthohormbic structure weft yarn number of plies and weft yarn period, the warp thread number of plies, warp thread period and minimum heddle (heald) number
Weft yarn number of plies Lw | Weft yarn period Rw | Warp thread number of plies Lt | Through the yarn number that hangs down | Warp thread period Rt | Minimum heddle (heald) is counted H |
??2 | ????4 | ????4 | ??2 | ???6 | ???6 |
??3 | ????6 | ????6 | ??2 | ???8 | ???8 |
??4 | ????8 | ????8 | ??2 | ???10 | ???10 |
??5 | ????10 | ????10 | ??2 | ???12 | ???12 |
??6 | ????12 | ????12 | ??2 | ???14 | ???14 |
??7 | ????14 | ????14 | ??2 | ???16 | ???16 |
??8 | ????16 | ????16 | ??2 | ???18 | ???18 |
??… | ????… | ????… | ??… | ???… | ???… |
Embodiment 6:
Two-way in length and breadth single face variable cross-section orthogonal stereo structure is meant and adopts the orthogonal stereo structure, only change the stereo fabric one side in length and breadth to the cross section, the another side of fabric does not then change, so be plane.Figure 15 is the two-way in length and breadth single face variable cross-section orthogonal stereo structure of being made up of three sections, and it to fading to 3 layers of warp, 4 layers of latitude from 5 layers of warp, 6 layers of latitude, fades to 2 layers of warp, 3 layers of latitude along horizontal (latitude) again.
To then changing respectively, each section changes of section is longitudinally seen Figure 16, Figure 17 and Figure 18 respectively to three sections among Figure 15 at vertical (warp).Table 3 item has been listed each section longitudinally through the situation of change of weft layers number.
According to front " longitudinal variable cross-section Woven Fabrics Structure and tissue design " and " laterally variable cross-section Woven Fabrics Structure and tissue design ", the method for designing of organizing of longitudinal variable cross-section Woven Fabrics Structure and horizontal variable cross-section Woven Fabrics Structure is combined, can form the looming draft of two-way in length and breadth single face variable cross-section orthogonal stereo structure, see shown in Figure 19.
Each section of table 3 is vertically through the variation of weft layers number and period
Section | Section |
1 | | | |
The longitude and latitude paper money number of plies and | 5 layers of warp, 6 layers of latitude are through period: 7 latitude periods: 6 | 3 layers of warp, 4 layers of latitude are through period: 5 latitude periods: 4 | 2 layers of warp, 3 layers of latitude are through period: 4 latitude periods: 3 |
4 layers of warp, 5 layers of latitude are through period: 6 latitude periods: 5 | 2 layers of warp, 3 layers of latitude are through period: 4 latitude periods: 3 | 1 layer of warp, 2 layers of latitude are through period: 3 latitude periods: 2 | |
3 layers of warp, 4 layers of latitude are through period: 5 latitude periods: 4 | 1 layer of warp, 2 layers of latitude are through period: 3 latitude periods: 2 | 0 layer of warp, 1 layer of latitude are through period: 2 latitude periods: 1 | |
2 layers of warp, 3 layers of latitude are through period: 4 latitude periods: 3 | |||
1 layer of warp, 2 layers of latitude are through period: 3 latitude periods: 2 |
Annotate: the listed warp thread number of plies does not comprise 2 vertical yarns in the table
The determining of the warp thread period of two-way in length and breadth single face variable cross-section orthogonal stereo structure organization depends on the arrangement of horizontal stroke (latitude) to thread layer, promptly depends on warp thread arranging situation shown in Figure 15.According to each listed in the table 1 section maximum through the weft layers place of number (this example i.e. first row in the table 1) through period and repeat to penetrate number of times (will determine the transverse width of fabric), can calculate through period.Because the number of repetition of each section is 4 in this example, the maximum of each section is respectively 7,5,4 through period, and structure then shown in Figure 15 is 4 * (7+5+4) through period, promptly 64.
The weft yarn period of two-way in length and breadth single face variable cross-section orthogonal stereo structure organization rule really depends on the arrangement of the weft layers of each section, promptly depends among Figure 16, Figure 17, Figure 18 weft yarn arrangement situation longitudinally.Because weft yarn is continuous in the wefting insertion process, so longitudinally the weft yarn period of each section (i.e. the vertical every change of yarn of correspondence is comprised when once interweaving rule) should be got the maximum of the each several part weft yarn number of plies.Vertical weft yarn arrangement situation among contrast Figure 16, Figure 17, Figure 18, the weft yarn number of plies that comprised when the every change of yarn once interweaves rule of hanging down among Figure 16 as can be seen is all the time more than or equal to the weft yarn number of plies of correspondence position among Figure 17, Figure 18, so the weft yarn period of total will be determined by the weft yarn arrangement structure among Figure 16.Weft yarn arrangement structure from Figure 16 as can be seen, variation according to the weft yarn number of plies, vertical arrangement architecture can be divided into 5 parts in this section, the number of plies of weft yarn is respectively 6,5,4,3 and 2 layers in these 5 parts, the number of repetition of weft layers is respectively 3,3,3,3 and 4 in these parts, then its weft yarn period is 3 * (6+5+4+3)+4 * 2, i.e. 62 latitudes.
After having determined the longitude and latitude period, can determine drafting plan.Drafting plan adopts subregion to wear method, and the number of partitions is identical with the transverse region hop count of fabric.Three sections are arranged in this example, and then drafting plan is divided into three districts, then adopts one along wearing method, as shown in figure 19 in each district.
The determining of card rule can adopt the card with each section longitudinal variable cross-section structure successively to carry out by the subregion of gaiting and to close, the card generation method of each section longitudinal variable cross-section structure can no longer repeat here referring to front " longitudinal variable cross-section Woven Fabrics Structure and tissue design ".
It needs to be noted when structure is made pegging plan since in second section the 5th, the 6th latitude and the warp thread relation that do not interweave, at Figure 15 the 5th, 6 latitude places, all warp thread all should descend, and promptly all should be the latitude interlacing point.Similarly, the 4th, 5,6 latitudes and the warp thread relation that do not interweave in the 3rd section, at Figure 15 the 4th, 5,6 latitude places, all warp thread all should descend, and promptly all should be the latitude interlacing point.
It must be noted that for the bigger structure of caliper variation, may exceed the ability of weaving of general dobbies, because of maximum heddle (heald) numbers of thumping majority dobbies can be above 20.Obviously, when caliper variation big and exceed dobbies weave ability the time, just need to adopt the jacquard looms, so just significantly reduce in the fabric restriction, thereby the variation that significantly reduces fabric thickness limits through the weft layers number.
Embodiment 7:
Two-way in length and breadth two-sided variable cross-section orthogonal stereo structure is meant and adopts the orthogonal stereo structure, change simultaneously stereo fabric positive and negative two in length and breadth to the cross section, two of fabric all are not plane.Figure 20 is the two-way in length and breadth two-sided variable cross-section orthogonal stereo structure of being made up of three sections, to fading to 3 layers of warp, 4 layers of latitude from 5 layers through 6 layers of latitude, fades to 1 layer of warp, 2 layers of latitude along horizontal (latitude) again.Figure 21, Figure 22, Figure 23 then are respectively the longitudinal cross-section situation of change of three sections.
The looming draft structure of two-way in length and breadth two-sided variable cross-section orthogonal stereo structure do method to above-mentioned in similar, but different when structure is made pegging plan.In determining Figure 20 during the pegging plan of second section, the interior warp thread of the 1st latitude and the 6th latitude and second section relation that do not interweave among Figure 20.So all warp thread all should be mentioned during the 1st latitude in Figure 20, promptly all should be through interlacing point; All warp thread all should descend during the 6th latitude in Figure 20, promptly all should be the latitude interlacing point.Similarly, in determining Figure 20 during the pegging plan of the 3rd section, during the 1st, 2 latitudes, all warp thread all should be mentioned, and promptly all should be through interlacing point in Figure 20; During the 5th, 6 latitudes, all warp thread all should descend, and promptly all should be the latitude interlacing point in Figure 20.Figure 24 is Figure 20, Figure 21, Figure 22, two-way in length and breadth two-sided variable cross-section orthogonal stereo structure looming draft shown in Figure 23.
Claims (4)
1, a kind of weaving method that is used for the variable cross-section three dimension stereo fabric of composite is characterized in that:
1), on the basis of plane quadrature 3-D solid structure, by changing the characteristics of motion of the yarn that hangs down, can form longitudinal variable cross-section orthogonal stereo structure, each comprised when interweaving rule different that change of the yarn that hangs down through the meeting of weft layers number, the warp thread that is straight distribution is not inweaved within the fabric because of the variation of cross sectional shape at different positions but is floated over outside the fabric with the form of long flotation line, but the yarn that hangs down is in the state that interweaves all the time, and the different numbers of plies are interconnected to integral body through weft yarn.
2), the formation method of horizontal variable cross-section Woven Fabrics Structure, if laterally the variable cross-section Woven Fabrics Structure is made up of n section, the weft yarn number of plies of each section be respectively Lwi (i=1,2,3,4 ..., n), then can extrapolate weft yarn period Rwi, warp thread number of plies Lti, warp thread period Rti, the minimum heddle (heald) of each section and count Hi, then the required total heddle (heald) number of horizontal variable cross-section orthogonal stereo machine-knitted structure that should be made up of the N section is Ht.
2, the weaving method that is used for the variable cross-section three dimension stereo fabric of composite according to claim 1, it is characterized in that: described plane quadrature 3-D solid structure is, one group of warp thread and one group of weft yarn, also have one group to play each layer of connection through the vertical yarn of the effect of weft yarn, making three directions in the fabric is warp-wise, broadwise and thickness direction, all has yarn to exist.
3, the weaving method that is used for the variable cross-section three dimension stereo fabric of composite according to claim 1 is characterized in that: the horizontal formation method of variable cross-section orthogonal stereo machine-knitted structure, and they can be respectively with following various calculating:
Rwi=2×Lwi,(i=1、2、3、4、……、n)
Lti=Lwi-1,(i=1、2、3、4、……、n)
Rti=Lwi-1+2=Lwi+1,(i=1、2、3、4、……、n)
Hi=Rti
Then should be Ht=H1+H2+H3+ by the required total heddle (heald) number of the horizontal variable cross-section orthogonal stereo machine-knitted structure that the N section is formed (or total line pin number) ... + Hn.
4, the weaving method that is used for the variable cross-section three dimension stereo fabric of composite according to claim 1 is characterized in that: the horizontal formation method of the accurate orthogonal stereo machine-knitted structure of variable cross-section, and they can be respectively with following various calculating:
Rwi=2×Lwi,(i=1、2、3、4、……、n)
Lti=2×Lwi,(i=1、2、3、4、……、n)
Rti=Lti+2,(i=1、2、3、4、……、n)
Hi=Rti
Then the required total heddle (heald) number of being made up of the N section (or total line pin number) of the accurate orthogonal stereo machine-knitted structure of horizontal variable cross-section is Ht=H1+H2+H3+ ... + Hn.
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CNA2003101039299A Pending CN1540052A (en) | 2003-11-01 | 2003-11-01 | Method for weaving 3D textile with variable cross section appicable to composite material |
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Cited By (12)
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CN101858006A (en) * | 2010-06-09 | 2010-10-13 | 江苏华业纺织有限公司 | Multifunctional gas cell fabric and production method thereof |
CN101532506B (en) * | 2009-04-16 | 2011-02-09 | 东华大学 | Method for weaving inclusive ring of gas compressor of engine |
CN101005157B (en) * | 2007-01-19 | 2011-08-31 | 东华大学 | Method for constituting conformal bearing microstrip antenna structure based on three dimension orthogonal machine woven fabric |
CN102517759A (en) * | 2011-12-29 | 2012-06-27 | 山东岱银纺织集团股份有限公司 | Weaving method for same-width and different-thickness three-dimensional woven fabric |
CN102973067A (en) * | 2012-12-29 | 2013-03-20 | 孚日集团股份有限公司 | Six-layer jacquard satin towel and quilt type product and weaving method thereof |
CN103835057A (en) * | 2014-02-28 | 2014-06-04 | 东华大学 | Three-dimensional woven fabric manufacturing method |
CN105113106A (en) * | 2015-08-27 | 2015-12-02 | 浙江理工大学 | Structural design and weaving device and process of rip vertical yarn combined type three-dimensional woven fabric |
WO2018001305A1 (en) * | 2016-07-01 | 2018-01-04 | 东丽纤维研究所(中国)有限公司 | Voluminous textile |
CN109023756A (en) * | 2018-10-08 | 2018-12-18 | 信泰(福建)科技有限公司 | Mesh cloth with three-dimensional middle embroidery threads and manufacturing method thereof |
CN109972271A (en) * | 2019-03-27 | 2019-07-05 | 中材科技股份有限公司 | A kind of Varying-thickness precast body, a kind of composite component and a kind of Varying-thickness precast body subtract yarn method |
CN111455524A (en) * | 2020-05-07 | 2020-07-28 | 北京机科国创轻量化科学研究院有限公司 | Composite structure fabric and weaving method thereof |
CN111910325A (en) * | 2020-07-30 | 2020-11-10 | 南京玻璃纤维研究设计院有限公司 | Rotary shell fabric and plane forming method thereof |
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CN101005157B (en) * | 2007-01-19 | 2011-08-31 | 东华大学 | Method for constituting conformal bearing microstrip antenna structure based on three dimension orthogonal machine woven fabric |
CN101532506B (en) * | 2009-04-16 | 2011-02-09 | 东华大学 | Method for weaving inclusive ring of gas compressor of engine |
CN101858006A (en) * | 2010-06-09 | 2010-10-13 | 江苏华业纺织有限公司 | Multifunctional gas cell fabric and production method thereof |
CN102517759A (en) * | 2011-12-29 | 2012-06-27 | 山东岱银纺织集团股份有限公司 | Weaving method for same-width and different-thickness three-dimensional woven fabric |
CN102517759B (en) * | 2011-12-29 | 2013-12-25 | 山东岱银纺织集团股份有限公司 | Weaving method for same-width and different-thickness three-dimensional woven fabric |
CN102973067B (en) * | 2012-12-29 | 2014-09-03 | 孚日集团股份有限公司 | Six-layer jacquard satin towel and quilt type product and weaving method thereof |
CN102973067A (en) * | 2012-12-29 | 2013-03-20 | 孚日集团股份有限公司 | Six-layer jacquard satin towel and quilt type product and weaving method thereof |
CN103835057B (en) * | 2014-02-28 | 2015-04-08 | 东华大学 | Three-dimensional woven fabric manufacturing method |
CN103835057A (en) * | 2014-02-28 | 2014-06-04 | 东华大学 | Three-dimensional woven fabric manufacturing method |
CN105113106A (en) * | 2015-08-27 | 2015-12-02 | 浙江理工大学 | Structural design and weaving device and process of rip vertical yarn combined type three-dimensional woven fabric |
CN105113106B (en) * | 2015-08-27 | 2017-03-22 | 浙江理工大学 | Structural design and weaving device and process of rip vertical yarn combined type three-dimensional woven fabric |
WO2018001305A1 (en) * | 2016-07-01 | 2018-01-04 | 东丽纤维研究所(中国)有限公司 | Voluminous textile |
CN109023756A (en) * | 2018-10-08 | 2018-12-18 | 信泰(福建)科技有限公司 | Mesh cloth with three-dimensional middle embroidery threads and manufacturing method thereof |
CN109023756B (en) * | 2018-10-08 | 2023-09-15 | 信泰(福建)科技有限公司 | Screen cloth with three-dimensional middle embroidery threads and manufacturing method thereof |
CN109972271A (en) * | 2019-03-27 | 2019-07-05 | 中材科技股份有限公司 | A kind of Varying-thickness precast body, a kind of composite component and a kind of Varying-thickness precast body subtract yarn method |
CN109972271B (en) * | 2019-03-27 | 2023-03-14 | 南京玻璃纤维研究设计院有限公司 | Variable thickness preform, composite component and yarn reducing method of variable thickness preform |
CN111455524A (en) * | 2020-05-07 | 2020-07-28 | 北京机科国创轻量化科学研究院有限公司 | Composite structure fabric and weaving method thereof |
CN111910325A (en) * | 2020-07-30 | 2020-11-10 | 南京玻璃纤维研究设计院有限公司 | Rotary shell fabric and plane forming method thereof |
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