CN204356482U - A kind of stereo fabric of bicone structure - Google Patents

Abstract

A stereo fabric for bicone structure, it is two-layer inside and outside comprising, the cone structure of top closure, and described outer cone and internal layer cone are interwoven by warp thread and weft yarn plain weave, reduces successively from the cone end to vertex of a cone weft yarn; Connect with stitching weft between two-layer cone.Described fabric adopts ordinary two dimensional loom to weave, and reduce production cost, and it is good to have ability of anti-deformation, the feature that bearing capacity is strong.

Description

A kind of stereo fabric of bicone structure

Technical field

The utility model relates to textile technology field, particularly a kind of stereo fabric with the bicone structure of closed top end.

Background technology

Along with the continuous fast development of science and technology, various advanced composite material (ACM) constantly enters the visual field of people, composite is different from traditional metal, pottery and organic material, be composited according to certain way by two or more component, its stuctures and properties can design by selecting component and manufacturing technique, and combination property is more superior than traditional homogenous material or have the unexistent new capability of traditional material.Composite material for weaving is with the prefabricated component of textile material for base material, by the composite of resin compounded.

Early stage composite material for weaving is formed through laminated by two-dimensional fabric, because interlaminar strength is low, is requiring that comparatively harsh its application of occasion is restricted.Stereo fabric (three dimensional fabric) addresses this problem very well, and its thickness direction has multilayer, is connected between each layer fabric by the yarn of various form.It not only breaches the restriction of thickness direction, and mechanical property is also more satisfactory, has larger impact flexibility and fatigue resistance.

But the institutional framework of existing stereo fabric is interwoven by warp thread, weft yarn and vertical yarn, its weaving process and required weaving structure more complicated, and the fabric manufacture equipment of braiding stereo fabric costly, and the overall cost of this material is remained high.Therefore how to develop and use ordinary loom to carry out weaving of three dimensional fabric, play the market competition advantage of this new material, become problem demanding prompt solution.

Utility model content

Technical problem to be solved in the utility model is the defect overcoming prior art, there is provided a kind of stereo fabric of bicone structure, described fabric adopts ordinary two dimensional loom to weave, and reduces production cost, and it is good to have ability of anti-deformation, the feature that bearing capacity is strong.

Technical problem of the present utility model realizes with following technical proposals:

A stereo fabric for bicone structure, it is two-layer inside and outside comprising, the cone structure of top closure, and described outer cone and internal layer cone are interwoven by warp thread and weft yarn plain weave, and weft yarn reduces from the cone end successively to the vertex of a cone; Connect with stitching weft between two-layer cone.

The stereo fabric of above-mentioned bicone structure, described inside and outside two-layer cone thickness direction is 2.5D access node structure.

The stereo fabric of above-mentioned bicone structure, the cross section of described cone is circular or rhombus.

The stereo fabric of above-mentioned bicone structure, from the cone end to the vertex of a cone, symmetry reduces the weft yarn of equal number in the both sides of described cone cross section.

The stereo fabric of above-mentioned bicone structure, the both sides of described cone cross section increase the weft yarn of equal number from the vertex of a cone to cone end symmetry

The utility model is the stereo fabric of the inside and outside two-layer cone of top closure, and inside and outside bicone couples together by stitching weft, and the spacing of two-layer cone is 2.5D, forms composite material between cone through filling.The many arrangements in straightened condition of stitching weft, bending few compared with two-dimensional fabric, when being subject to External Force Acting every root fiber almost evenly carry, homogeneous deformation, improve integrated carrying ability, there is very high anti-bursting power and shear resistant, and bearing capacity is strong, without the problem of splitting.By changing the integrated carrying ability of the packing material adjustable composite material between inside and outside bicone, and the object of some property of adjustment section bar can be reached, as inhaled ripple wave penetrate capability etc.The utility model utilizes common two-dimensional loom warp thread, weft yarn and stitching weft to be woven into stereo fabric, low production cost, is conducive to the promotion and application of this fabric.Can need to select cotton, chemical fibre, wire etc. as yarn, to meet the demand of the field such as Aero-Space, building to different performance three dimension stereo fabric prefabricated component according to difference.

Accompanying drawing explanation

Fig. 1 is each access node in the utility model left and right maximum cross section block plan once;

Fig. 2 is the maximum cross section block plan of the utility model repeatedly access node;

Fig. 3 is that each access node in the utility model left and right fabric once flattens block plan;

Fig. 4 be the utility model repeatedly access node fabric flatten block plan;

Fig. 5 is each access node in the utility model left and right intersection chart once;

Fig. 6 instead knits looming draft;

Fig. 7 is just knitting looming draft.

In figure, each list of reference numerals is: 1, outer fabric warp thread, 2, outer fabric weft yarn head end, 3, outer fabric weft yarn end 4, internal layer fabric warp thread, 5, stitching weft, 6, internal layer fabric weft yarn head end, 7, internal layer fabric weft yarn end, 8, stitching weft head end, 9, stitching weft end, I, II represent Liang Ge great district in left and right in the block plan of maximum cross section, S1, S4, S5, S8 represent outer fabric and Outer Taper, and S2, S3, S5, S6 represent internal layer fabric and inner cone.A1-a13 represents by access node district and Fu Changxian district, 13 regions be divided into hollow coneshaped fabric maximum cross section, and n1-n7 represents 7 regions be divided into hollow coneshaped fabric maximum cross section by left and right access node period.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model uses traditional two-dimensional loom to weave the stereo fabric of inside and outside two-layer bicone structure, inside and outside two equal top closure of cone.Cone is plain weave, different according to conic section interleaved cyclic, forms the organization chart of bicone.The cross section of fabric can be circular or rhombus.When weaving, the cross section of inside and outside two cones is flattened and form two-layer or four-layer structure, inside and outside two-layer fabrics is connected again with stitching weft, and spacing of the cut to lengthen ectonexine cone of long line can be floated by stitching weft, the thickness direction of this fabric is 2.5D, namely inside and outside access node two-layer fabrics be weft yarn and non-woven.Weave cone can use and just knitting and instead knitting two kinds of methods, anti-a warp thread to be turned back when two warp thread use from brest beams when knitting, penetrate different heald frame and do levels simultaneously, often knit a circulation both sides ectonexine and add one deck.Often knit a circulation both sides ectonexine when just knitting and cut off two, be incorporated to consecutive warp and do double ends and weave.

As shown in Figure 1 and Figure 2, a weft yarn weft yarn of outer fabric, a weft yarn weft yarn of internal layer fabric, stitching weft is with one.

The path of outer fabric weft yarn is: weft yarn head end S1-S5-S8-S4-S1-S5-S8-S4 weft yarn tail end,

The path of internal layer fabric weft yarn is: weft yarn head end S2-S6-S7-S3-S2-S6-S7-S3 weft yarn tail end,

The path of stitching weft 5 is: weft yarn head end S2-S1-S6-S5-S6-S7-S8-S7-S4-S3 weft yarn tail end.(access node)

As seen from Figure 2, the binder yarn of upper and lower and symmetrical point floats the short difference of long line length, and the figure strutting postcentrum cross-sectional area is rhombus.

As shown in Figure 3, Figure 4, when using two-dimensional loom to knit the 2.5D normal direction bicone structure of top closure processed, first by flattening method, fabric is flattened, and be subdivided into a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13 13 districts.By changing the warp thread period in each district to control the size of the Distance geometry cone between inside and outside bicone.Wherein, the width of a1, a13 is equal, and the width of a6, a8 is equal, and the width of a2, a4, a7, a10, a12 is equal, and the width of a3, a5, a9, a11 is equal.A2, a4, a7, a10, a12 district is the interwoven region of stitching weft and inside and outside bicone, adopts a warp thread circulation, namely only interweaves once in each interwoven region.A3, a5, a9, a11 district be stitching weft between inside and outside bipyramid not with the region of warp yarns, the warp thread period by changing these districts controls inside and outside interpyramidally to space.A6, a8 district and a1, a13 district also can set on request.As circular cross-section will be obtained, the width that a6, a8 Liang Ge district also suitably regulates a1, a13 district can be removed; Obtain diamond-shaped cross-section and by calculating the width in control a6, a8 district, and can suitably regulate the width in a1, a13 district, to meet the effect preset.

Flatten cross section and be divided into again n1, n2, n3, n4, n5, n6, n7 seven districts.Wherein, using these four districts of a2, a3, a4, a5 as a Ge great district, represent with n2, a district is used as in these four districts of a9, a10, a11, a12, represents with n6.This design sketch repeatedly circulated is as Fig. 2 and Fig. 4.After determining the period of each community warp thread, the floating long line of stitching weft in n2, n6 district of repeatedly circulating, the total quantity of warps of corresponding increase warp thread, can expand arbitrarily the size of cone.

As shown in Figure 5, weave around each access node fabric time, inside and outside two-layer fabrics is coupled together by binder yarn.Interweave and occur double ends fault, affect quality and the performance of fabric, so when warping, need to remove two warp thread, the 7th namely in a7 district and the 8th.

As shown in Figure 6, Figure 7, looming draft is divided into and instead knits and just knit two kinds.Two kinds of weaving modes are all through four basic processes: warping, gait, denting, to weave.Because top closure 2.5D normal direction bicone structure is a closed structure, make it not occur double ends fault, need when weaving to remove or increase by two warp thread (just knitting and knitting two kinds of methods with counter).

Counter knitting refers to, first weaves from the top of cone when weaving, and then the cross section of the expansion fabric of a little, until required fabric size size.The effect of top closure penetrates different heald frame by the warp thread warp thread turned back on top respectively as levels to obtain.Need a warp thread to be used as during warping two with, first through a heald when passing, then around passing back through another heald, thus reaching the effect of fabric nose-circle slip, making fabric attractive in appearance, performance improvement.Spacing between inside and outside bipyramid controls binder yarn on request to float that the length of long line realizes, and namely changes the warp thread period in a3, a5, a9 and a11 district.

Just knitting and referring to, weaving from the bottom surface of cone when weaving, and then the cross section reducing fabric of a little, until the top of fabric has been weaved.The effect of top closure is yarn tail by outside is cut off and comes in carry out double ends and weave and obtain.Spacing between inside and outside bipyramid is control the length that binder yarn floats long line on request to realize equally, namely changes the warp thread period in a3, a5, a9 and a11 district.

The anti-weaving process knitted:

1) the anti-looming draft knitted: as shown in Figure 6, the fabric of top closure 2.5D normal direction bicone structure is divided into three parts in broadwise, represents with b1, b2, b3 respectively, when wherein weaving b1 district, only Outer Taper need be weaved, there is certain distance between top due to inside and outside two cones, so inner cone is not also weaved, also need not knit stitching weft, therefore, in b1 district, only have organization chart during nonwoven outer fabric, the thickness at fabric top is controlled by the period in b1 district.When weaving b2 district, start to weave inner cone, so the picking order in b2 district is a table one li in organization chart, after b2 district is woven into certain width, (pass reed, thin wire with the table warp thread of stitching weft generation access node), start to weave b3 district, namely start the region inweaving stitching weft.The bottom-right pegging plan of Fig. 6 is also subregion.When weaving b1 district, with the pegging plan corresponding to b1 district; When weaving b2 district, with the pegging plan corresponding to b2 district; When weaving b3 district, with the pegging plan corresponding to b3 district.But also can the pegging plan in Dou Yong b3 district, weave b1 district, when the opening knitting stitching weft and internal layer fabric is opened, do not introduce yarn.When knitting b2 district, when the opening knitting stitching weft is opened, do not introduce weft yarn.

2) weaving process: when passing, outer fabric warp thread and internal layer fabric warp thread can not pass with a warp thread, but outer warp thread and internal layer warp thread can be gaited with same warp thread respectively.S1 and S4 in Fig. 1 and Fig. 2 represents the outer fabric with a part, and represent two-layer up and down respectively, so the yarn of S1, S4 can pass with a warp thread, namely pass from the heald frame corresponding to 1,1 ' the warp thread of coming, from the heald frame corresponding to 4,4 ' through going; S2 and S3 represents the internal layer fabric with a part, and represents two-layer up and down respectively, so the yarn of S2, S3 can pass with a warp thread, namely passes from the heald frame corresponding to 2,2 ' the warp thread of coming, from the heald frame corresponding to 3,3 ' through going.The fabric of S5 with the S8 layer in Fig. 3 with Fig. 4 and S1 and S4 to pass method the same, the fabric of S6 with S7 layer and S2 and S3 to pass method the same.

In order to avoid double ends fault when passing, ectonexine fabric eliminates a warp thread respectively.The high order end in Fig. 5 Zhong a7 district removes a warp thread (representing inside and outside two-layer fabrics with a warp thread herein) of internal layer lower floor and outer lower floor, then inside and outside fabric is connected with a warp thread, form a7 district high order end, from the heald frame corresponding to warp thread 5 through the warp thread come again from the heald frame corresponding to warp thread 6 through going.In weaving process, weave and carry out with denting simultaneously.

A7 district is represented outer field warp thread denting, is fixed on after between brest beams and reed with thin wire, a7 district is represented the warp thread denting of internal layer, then make it with table latitude and show to have necessarily to space through top to be connected and fixed, standby rear binding, can start to weave.

After having weaved a circulation, respectively get two outer warp thread at the right and left, denting, be fixed on fell place with another root thin wire, then bind after machine, give certain tension force, start to weave, after a circulation terminates, extract thin wire out, urgent weft yarn.Circulate this process always, until the b1 district system of knitting is complete.

When weaving b2 district, outer fabric and internal layer fabric need plaiting simultaneously, and weaving process is also like this.During plaiting, the warp thread that put correctly adds, avoid producing with other warp thread inweaved being wound around, impact is weaved.Internal layer fabric starts to weave, and the Shi Yaoyi that throws a spear shows latitude, a back weft.Until pass reed, thin wire with the warp thread of stitching weft access node, start weaving of b3 district.If want that the drift angle making cone increases, can suitably increase at every turn at the plaiting number (even number) of ectonexine fabric.

When weaving b3 district, outer fabric and internal layer fabric need plaiting simultaneously, and weaving process is also like this, just starts weaving of stitching weft, after completing the weaving of outer and internal layer fabric, carry out the introducing of stitching weft.When inweaving stitching weft, preferably with there is the mould of certain altitude inside and outside two-layer fabrics separately, spacing between ectonexine fabric can be controlled better like this.Until fabric knitting completes.

For stitching weft float long line period many time, when namely access node is counted and increased, weaving process is also like this.

The weaving process just knitted:

1) looming draft just knitted: as shown in Figure 7, is divided into three parts by the fabric of top closure 2.5D normal direction bicone structure in broadwise, represents respectively with b1, b2, b3.When weaving b1 district, because be the bottom surface of bicone, outer fabric, internal layer fabric and stitching weft all exist.When the table warp thread with stitching weft generation access node is all cut by scissors, the b2 district that is about to begin weaves, and in this process, no longer includes the introducing of stitching weft.When the top of internal layer hollow coneshaped fabric is weaved complete, start weaving of b3 district, now, only have weaving of outer fabric.The bottom-right pegging plan of Fig. 7 is subregion.When weaving each district, with the pegging plan corresponding to each district.But also can all the time with the pegging plan in b1 district, when knitting b2 district, when the opening knitting stitching weft is opened, neither introduce stitching weft, also do not feed ectonexine fabric weft yarn used.Knit b3 district, when the opening knitting stitching weft and internal layer fabric is opened, do not introduce any yarn.

2) just knit weaving process: pass, denting time carry out according to looming draft.Method knits weaving process with counter.

Area of section due to cone is gradual change, so weft yarn circulation of often casting off, will respectively cut off two one threads from the high order end of outer fabric warp thread and internal layer fabric warp thread and low order end scissors, these two warp thread are exactly represent the warp thread with layer fabric levels.Circulate this process until inner fabric is made into.To when weaving b3 district, high order end and low order end two warp thread only need be cut, until Outer Taper top has been weaved.If want that the drift angle making cone increases, the number of threads (even number) at every turn cut off in ectonexine fabric suitably can be increased.

Claims (3)

1. a stereo fabric for bicone structure, is characterized in that, it is two-layer inside and outside comprising, the cone structure of top closure, and described outer cone and internal layer cone are interwoven by warp thread and weft yarn plain weave, and weft yarn reduces from the cone end successively to the vertex of a cone; Connect with stitching weft (5) between two-layer cone.

2. the stereo fabric of bicone structure according to claim 1, is characterized in that, the cross section of described cone is circular or rhombus.

3. the stereo fabric of bicone structure according to claim 2, is characterized in that, in the both sides of described cone cross section, from the cone end to the vertex of a cone, symmetry reduces the weft yarn of equal number.