CN1317437C - Process for weaving three-dimensional fabrics with special-shaped cross-section and special-purpose heald wire - Google Patents
Process for weaving three-dimensional fabrics with special-shaped cross-section and special-purpose heald wire Download PDFInfo
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- CN1317437C CN1317437C CNB2004100148645A CN200410014864A CN1317437C CN 1317437 C CN1317437 C CN 1317437C CN B2004100148645 A CNB2004100148645 A CN B2004100148645A CN 200410014864 A CN200410014864 A CN 200410014864A CN 1317437 C CN1317437 C CN 1317437C
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Abstract
The present invention relates to a process for weaving three-dimensional woven fabric with a special-shaped cross section and a heald special for the process for weaving three-dimensional woven fabric with a special-shaped cross section, which is characterized in that healds on heald frames of a heald lifting device are processed into specific healds with multiple heald eyes on the basis of a three-dimensional loom, warp yarn is arranged on the healds with multiple heald eyes according to the implementation technology of special-shaped cross sections, multiple layers of openings of the warp yarn are formed according to specific heald frame motion procedures, and weft yarn is inserted according to a definite order to form the structure of fabric. In the present invention, the healds with multiple heald eyes are used to form the structure of multiple layer fabric, the multiple layers are used to meet the requirement of the thickness of the fabric to make the fabric have definite thickness and a cross-sectional shape, the integrity of the fabric is strong, and the size profile modeling precision of the fabric is high; the warp yarn can be arranged on the healds with multiple heald eyes through the fluctuation procedure of different heald frames according to the size requirement of the special-shaped cross sections during weaving to form multiple layers of clear openings to make multiple layer weft insertion easy, the size control range of the fabric is larger, the operability during weaving the fabric is strong, and various kinds of special-shaped cross section fabric can be processed.
Description
Technical field
The present invention relates to the weaving process of the woven three dimensional fabric of a kind of profiled-cross-section, belong to stereo fabric weaving technology field.
Background technology
The engineering research of the woven 3-D technology of China starts from the nineties, and woven three dimensional fabric is widely used in space flight, aviation field, particularly aspect, military project weapon field.As the enhancing base material of composite, the function of fabric is developed to multi-functional direction by unicity.And that the weaving process of the woven three dimensional fabric of profiled-cross-section still belongs on the research of China and Application Areas is blank.The three-dimensional multilayer fabric that Chinese patent application CN-1182813A proposes, fabric layers is few, and structure is single, can not weave the heavy weave of complicated shape, and the three dimensional fabric that Chinese patent application CN-1297074A is proposed has certain limitation on thickness.
Summary of the invention
The technical problem to be solved in the present invention is exactly that the woven three dimensional fabric number of plies that weaves of prior art is few, structure is single, can not weaves complicated heavy weave, and thickness has certain circumscribed problem, for society provides the weaving process technology of the woven three-dimensional of a kind of profiled-cross-section, it can weave the enhancing base material of various composite profiled-cross-section section bars effectively.
The present invention is on the basis of three-dimensional loom equipment, heald on the heald lifting device heald frame is processed into many special healds, implementing process by profiled-cross-section on many healds carries out the warp thread arrangement, according to specific integrated box movement program, make warp thread form the multilayer opening, introduce weft yarn in sequence, realize the moulding of fabric construction.
The present invention includes following processing step:
(1), forms n layer warp thread according to the arrangement of the shape in fabric cross section at the stratose number of the enterprising yarn of passing through of many healds of weaving equipment;
(2) get the warp thread of fixed length, many healds of heald frame before counting arrangement mode and pierce into respectively by stratose, many healds of back heald frame;
(3) tenslator of the warp thread of fixed length and weaving equipment is coupled together the control warp thread tension force and keep evenly;
(4) according to the structural requirement of fabric, the shedding shedding motion begins relative motion up and down, and the warp thread before and after can driving through separately heald eye on the heald frame moves up and down, and forms the opening of n+1 layer equal altitudes;
(5) if preceding heald frame rises, back heald frame descends, and respectively introduces a weft yarn from top to bottom by a weft inserting apparatus successively in the n+1 layer opening that forms, and after wefting insertion was finished, beating device was thrown n+1 layer weft yarn into fell to the fell translation, finishes beating-up;
(6) heald frame rose after preceding heald frame descended, and at this moment layer stops up straight weft yarn with a layer crooked warp thread, in newly forming n+1 layer opening, respectively introduces a weft yarn from down to up and carries out wefting insertion;
(7) beating device was thrown n+1 layer weft yarn into fell by the requirement of Density to the fell translation after wefting insertion was finished;
Above technical process is carried out according to actual cycle.
The most of structure of loom equipment (as shown in Figure 1) that matches with the weaving process of the woven three dimensional fabric of profiled-cross-section of the present invention is same as the prior art, by let-off motion f, tenslator e, shedding shedding motion d, weft inserting apparatus c, beating device b, directly draw six most of compositions such as batching apparatus a.Its difference is that the heald with heald lifting device (as shown in Figure 2) is designed to many healds, and an eye number scope is 3～35.On many healds, the centre distance between two heald eyes is 20mm, and 1 layer of lifting traverse of heald lifting device is 20mm.Have two heald frames before and after the heald lifting device, arrange severally by institute's Woven fabric fabric width and the determined heald radical of warp count on the every heald frame, a number of many healds is determined by institute's woven fabric technology and fabric thickness.The relative lifting traverse of front and back heald frame wants big, the shedding inside casing is positioned at the lifting under the control of decelerator of fixing housing and is easy to control flexibly, the decelerator of control heald lifting device lifting is respectively in the both sides of loom, before and after the structure of heald frame identical, by decelerator 1, be steel wire rope 2, pulley 3, many healds 4, menelipsis lattice framing 5, shedding inside casing 6, shedding housings 7 formations (referring to Fig. 2).
The present invention utilizes many healds to realize the shaping structures of multiply cloth, utilizes multilayer to reach the thickness needs of fabric, makes fabric have certain thickness and shape of cross section; Fabric can make warp thread, weft yarn interweave in weaving process and be in different crosslinking methods, and layer and layer orthogonal are shallow or curved hands over fabric constructions such as shallow thereby form; Utilize the present invention to weave in fabric construction, weft yarn is in straightened condition, and thread layer makes fabric become as a whole with the interlayer flexure hinge, and the globality of fabric is strong, fabric size copying accuracy height; Can in weaving process according to the needs of profiled-cross-section size, arrange at many enterprising yarns of passing through of heald by different heald frame lifting programs, forming multi-level clear opening is easy to the multilayer wefting insertion and weaves, the fabric size control range is bigger, the weaving process of fabric is workable, can process multiple profiled-cross-section fabric.
Description of drawings
Fig. 1 is a three-dimensional loom schematic representation of apparatus of the present invention.
Among Fig. 1, a is that beating device, c are that weft inserting apparatus, d are the shedding shedding motion for direct traction batching apparatus, b, and e is that tenslator, f are that let-off motion, g are that forming fabric, h are that warp thread, i are heald.
Fig. 2 is heald frame schematic diagram of the present invention (a preceding heald frame).
Among Fig. 2,1 is that decelerator, 2 is that steel wire rope, 3 is that pulley, 4 is that many healds, 5 are that menelipsis lattice framing, 6 is that shedding inside casing, 7 is the shedding housing.
Fig. 3 is a layer and the structural representation of the shallow woven three dimensional fabric of layer orthogonal.
Fig. 4 is layer and the curved structural representation of handing over shallow woven three dimensional fabric of layer.
Fig. 5 is a heald frame elevating movement programme diagram of the present invention.
Fig. 6 is porose profiled-cross-section integrated box movement rule Fig. 1.
Fig. 7 is porose profiled-cross-section integrated box movement rule Fig. 2.
Fig. 8 is porose profiled-cross-section integrated box movement rule Fig. 3.
Fig. 9 is " V " font profiled-cross-section integrated box movement rule Fig. 1.
Figure 10 is " V " font profiled-cross-section integrated box movement rule Fig. 2.
Figure 11 is " V " font profiled-cross-section integrated box movement rule Fig. 3.
Figure 12 is " V " font profiled-cross-section integrated box movement rule Fig. 4.
Figure 13 is " V " font profiled-cross-section integrated box movement rule Fig. 5.
Figure 14 is " V " font profiled-cross-section integrated box movement rule Fig. 6.
Among Fig. 5-Figure 14, zero expression is installed with warp thread, and the empty heald eye of * expression does not have warp thread.
Figure 15 is fabric profiled-cross-section shape figure with holes.
Figure 16 is " V " font fabric profiled-cross-section shape figure.
Among Figure 15,16, circle is represented weft yarn, and curve is represented warp thread.
The specific embodiment
The so-called profiled-cross-section of the woven three dimensional fabric of profiled-cross-section of the present invention is meant fabric along warp thread direction or weft direction, the overall structure state that fabric cross section presents.The present invention can be used for weaving the fabric as multiple odd-shaped cross section listed in the table 1 (but being not limited to table 1), and these need can carry out warp thread according to its concrete shape on many healds arranges, and gets final product weaving by number of plies opening wefting insertion successively.
The institutional framework of three dimensional fabric determines that by the relative displacement lifting program of heald frame different lifting programs makes fabric have different structures.If any n layer warp thread, the n-1 layer opening of the concordant formation equal altitudes of heald frame; Front and back heald frame relative motion forms equal altitudes n+1 layer opening.The lifting of heald frame has two kinds: the shallow connection structure of orthogonal (as shown in Figure 3); The curved shallow connection structure (as shown in Figure 4) of handing over.
1, the shallow connection structure of orthogonal: two heald frames are concordant (as Fig. 5 (1) → preceding heald frame rising (as Fig. 5 (2)) → two heald frames concordant (as Fig. 5 (3)) → back heald frame rising (as Fig. 5 (4));
Four steps are weaved circulation as one.
2, the shallow connection structure of curved friendship: preceding heald frame rises (as Fig. 5 (3)) → back heald frame rising (as Fig. 5 (4));
Two steps are weaved circulation as one.
Be example with profiled-cross-section fabric with holes, " V " font profiled-cross-section fabric below, the present invention is further described.
A. profiled-cross-section fabric with holes (as shown in figure 15)
As shown in Figure 5, warp thread divides 2 zones on many healds, and 1 district is totally 3 floor warp thread, and 2 districts are totally 3 floor warp thread, and empty 2 heald eyes do not pass yarn between 1 district and 2 districts.
1, be raw material with glass fibre, carbon fiber, aramid fiber, quartz fibre, the yarn drafting plan is shown in Fig. 5 (1).Fabric structure adopts the curved structure that connects of layer and layer orthogonal, and weft yarn is in straight configuration in interleaving process, and warp thread is in case of bending.
2, utilize many healds, form the multiply cloth structure, on heald, carry out the arrangement of warp thread as (1) among Fig. 5:
3, weaving process parameter sees Table 2;
4, weave in the following order:
Weaving process such as Fig. 6-shown in Figure 8, the height traverse of front and back heald frame is the opening that forms the multilayer warp thread in proper order, horizontal line is represented the aperture position that the front and back heald frame forms, and just needs the position of wefting insertion.
(1) page or leaf heald frame in back rises than the high 2 layers of traverse of preceding page or leaf heald frame, shown in (1) among Fig. 6, introduces weft yarn 1,2,3 from top to bottom successively;
(2) page or leaf heald frame in back rises to than the high 4 layers of traverse of preceding page or leaf heald frame again, shown in (2) among Fig. 6, introduces weft yarn 4,5 from top to bottom successively;
(3) page or leaf heald frame in back drops to than the high 2 layers of traverse of preceding page or leaf heald frame, shown in (3) among Fig. 6, introduces weft yarn 6,7 from top to bottom successively;
(4) preceding page or leaf heald frame rises than the high 2 layers of traverse of back page or leaf heald frame, shown in (1) among Fig. 7, introduces weft yarn 1,2,3 from top to bottom successively;
(5) preceding page or leaf heald frame rises to than the high 4 layers of traverse of back page or leaf heald frame again, shown in (2) among Fig. 7, introduces weft yarn 4,5 from top to bottom successively;
(6) preceding page or leaf heald frame drops to than the high 2 layers of traverse of back page or leaf heald frame, shown in (3) among Fig. 7, introduces weft yarn 6,7 from top to bottom successively;
(7) technology of carrying out the whole coupling part of profiled-cross-section fabric with holes according to (1)～(6) step is weaved;
(8) according among Fig. 8 shown in (1), back page or leaf heald frame rises higher 2 layers than preceding page or leaf heald frame, with 2 weft inserting apparatuss in 1 district, 2 districts introduce weft yarn 1,2,3,4 respectively from top to bottom successively;
According among Fig. 8 shown in (2), preceding page or leaf heald frame rises higher 2 layers than back page or leaf heald frame, with 2 weft inserting apparatuss in 1 district, 2 districts introduce weft yarn 1,2,3,4 respectively from top to bottom successively;
Weave with this technology of finishing meshed portion as a circulation.
(9) according to the dimensional requirement of porose fabric reality, carry out weaving of fabric, can the adjustment hole length of weaving length and whole coupling part partly.Utilize the multilayer heald rationally to arrange the number of plies of warp thread to regulate the thickness of fabric.
B. " V " font profiled-cross-section (as shown in figure 16):
With glass fibre, carbon fiber, aramid fiber, quartz fibre is raw material, the yarn drafting plan as shown in Figure 6, organizational structure of fabrics adopts that layer and layer are curved hands over a shallow connection structure; Weft yarn is in straight configuration in interleaving process, and warp thread is in case of bending.
Weaving process such as Fig. 6-shown in Figure 8, the height traverse of front and back heald frame is the opening that forms the multilayer warp thread in proper order, horizontal line is represented the aperture position that the front and back heald frame forms, and just needs the position of wefting insertion.
1, the arrangement of warp thread is as shown in Figure 9 on heald;
2, the process parameter table of fabric sees Table 3;
3, carry out weaving of fabric by following process sequence;
4, three groups of warp thread are weaved separately in three zones respectively
4.1 (1) rising of back page or leaf heald frame is higher 2 layers than preceding page or leaf heald frame, shown in (1) among Figure 10, weft yarn 1,2,3,4 is introduced in 3 weft inserting apparatus zones separately from top to bottom successively;
(2) rising of preceding page or leaf heald frame is higher 2 layers than back page or leaf heald frame, and shown in (2) among Figure 10,3 weft inserting apparatuss are introduced weft yarn 1,2,3,4 respectively from top to bottom successively in zone separately;
4.2 the connection in 1 district and 2 districts is weaved
(1) rising of back page or leaf heald frame is higher 2 layers than preceding page or leaf heald frame, shown in (1) among Figure 11, introduces weft yarn 1,2,3 in 1 district from top to bottom successively with weft inserting apparatus 1; Introduce weft yarn 1,2,3,4 in 3 districts with another one weft inserting apparatus 2;
(2) a back page or leaf heald frame rise to again higher 4 layers than preceding page or leaf heald frame, shown in (2) among Figure 11, at 1 district and joint, 2 district weft inserting apparatus 1 introducing weft yarn 4,5;
(3) decline of back page or leaf heald frame is identical with (1) step, shown in (3) among Figure 11, introduces weft yarn 6,7 in 2 districts with weft inserting apparatus 1;
(4) rising of preceding page or leaf heald frame is higher 2 layers than back page or leaf heald frame, shown in (1) among Figure 12, introduces weft yarn 1,2,3 in 1 district from top to bottom successively with weft inserting apparatus 1; Introduce weft yarn 1,2,3,4 in 3 districts with another one weft inserting apparatus 2;
(5) preceding page or leaf heald frame rise to again higher 4 layers than back page or leaf heald frame, shown in (2) among Figure 12, at 1 district and joint, 2 district weft inserting apparatus 1 introducing weft yarn 4,5;
(6) decline of preceding page or leaf heald frame is identical with (4) step, shown in (3) among Figure 12, introduces weft yarn 6,7 in 2 districts with weft inserting apparatus 1;
4.3 connecting, 2 districts and 3 districts weave
(1) rising of back page or leaf heald frame is higher 2 layers than preceding page or leaf heald frame, shown in (1) among Figure 13, introduces weft yarn 1,2,3,4 in 1 district from top to bottom successively with weft inserting apparatus 1; Introduce weft yarn 1,2,3 in 2 districts with another one weft inserting apparatus 2;
(2) a back page or leaf heald frame rise to again higher 4 layers than preceding page or leaf heald frame, shown in (2) among Figure 13, at 2 districts and joint, 3 district weft inserting apparatus 2 introducing weft yarns 4,5;
(3) decline of back page or leaf heald frame is identical with (1) step, shown in (3) among Figure 13, introduces weft yarns 6,7 in 3 districts with weft inserting apparatus 2;
(4) rising of preceding page or leaf heald frame is higher 2 layers than back page or leaf heald frame, shown in (1) among Figure 14, introduces weft yarn 1,2,3,4 in 1 district from top to bottom successively with weft inserting apparatus 1; Introduce weft yarn 1,2,3 in 2 districts with another one weft inserting apparatus 2;
(5) preceding page or leaf heald frame rise to again higher 4 layers than back page or leaf heald frame, shown in (2) among Figure 14, at 2 districts and joint, 3 district weft inserting apparatus 2 introducing weft yarns 4,5;
(6) decline of preceding page or leaf heald frame is identical with (4) step, shown in (3) among Figure 14, introduces weft yarn 6,7 in 3 districts with weft inserting apparatus;
5, the weaving process of " V " font profiled-cross-section fabric combines by 4.1,4.2,4.3 3 parts and realizes the forming process of fabric." V " font profiled-cross-section can increase the warp thread number of plies and come the thickness of reinforced fiber according to the dimensional requirement of fabric, can carry out the arrangement of yarn according to actual conditions, and interregional connection dimensions length weaves period by increase and filling density is regulated.Each regional independent moulding is weaved length and is determined by the technology of needs.Technology can be known thus, and the fabric moulding of 2 districts connects moulding with 1 district, 3 districts respectively, and the length of weaving that length is far longer than 1 district, 3 districts is weaved in 2 districts, so needs 2 districts have independently feeding system of warp and realize technology.
The woven three dimensional fabric technological parameter of several profiled-cross-sections of table 1
| Raw material | Glass fibre 190Tex |
| Fabric size (mm) | 100×100×2.1 |
| The yarn specification | Warp thread: 190Tex * 1 strand weft yarn: 190Tex * 2 strand |
| Density | Warp-wise: 10/cm broadwise: 6 latitudes/cm |
| Porter | 100 teeth/10cm |
| The |
6 layer of 100 row |
| Fabric thickness | 2.1mm |
Table 2 fabric with holes
| Raw material | Glass fibre 190Tex |
| Fabric size (mm) | 100×100×2.1 |
| The yarn specification | Warp thread: 190Tex * 1 strand weft yarn: 190Tex * 2 strand |
| Density | Warp-wise: 10/cm broadwise: 6 latitudes/cm |
| Porter | 100 teeth/10em |
| The thread layer columns | 9 layer of 100 row |
| Fabric thickness | 2.1mm |
Table 3V font fabric
Claims (4)
1, the weaving process of the woven three dimensional fabric of a kind of profiled-cross-section is characterized in that comprising following processing step:
(1), forms n layer warp thread according to the arrangement of the shape in fabric cross section at the stratose number of the enterprising yarn of passing through of many healds of weaving equipment;
(2) get the warp thread of fixed length, many healds of heald frame before counting arrangement mode and pierce into respectively by stratose, many healds of back heald frame;
(3) tenslator of the warp thread of fixed length and weaving equipment is coupled together the control warp thread tension force and keep evenly;
(3) according to the structural requirement of fabric, the shedding shedding motion begins relative motion up and down, and the warp thread before and after can driving through separately heald eye on the heald frame moves up and down, and forms the opening of n+1 layer equal altitudes;
(5) preceding heald frame rises, and back heald frame descends, and respectively introduces a weft yarn from top to bottom by a weft inserting apparatus successively in the n+1 layer opening that forms, and after wefting insertion was finished, beating device was thrown n+1 layer weft yarn into fell to the fell translation, finishes beating-up;
(6) heald frame rose after heald frame descended, and at this moment layer stops up straight weft yarn with a layer crooked warp thread, in newly forming n+1 layer opening, respectively introduces a weft yarn from down to up and carries out wefting insertion;
(7) beating device was thrown n+1 layer weft yarn into fell by the requirement of Density to the fell translation after wefting insertion was finished;
Above technical process is carried out according to actual cycle.
2, the weaving process of the woven three dimensional fabric of profiled-cross-section as claimed in claim 1, the lifting program of the harness frame in aweaving machine when it is characterized in that weaving the fabric of the shallow connection structure of orthogonal is as follows:
Two heald frames are concordant → preceding heald frame rise → two heald frames concordant → the back heald frame rises, four steps are weaved circulation as one.
3, the weaving process of the woven three dimensional fabric of profiled-cross-section as claimed in claim 1, the lifting program of the harness frame in aweaving machine when it is characterized in that weaving the fabric of bending the shallow connection structure of friendship is as follows:
Preceding heald frame rising → back heald frame rises, and two steps are weaved circulation as one.
4, the weaving process of any woven three dimensional fabric of described profiled-cross-section of a kind of and claim 1 to 3 is characterized in that the centre distance between two heald eyes of described many healds is 20mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100148645A CN1317437C (en) | 2004-05-10 | 2004-05-10 | Process for weaving three-dimensional fabrics with special-shaped cross-section and special-purpose heald wire |
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| CNB2004100148645A CN1317437C (en) | 2004-05-10 | 2004-05-10 | Process for weaving three-dimensional fabrics with special-shaped cross-section and special-purpose heald wire |
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| CN1317437C true CN1317437C (en) | 2007-05-23 |
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|---|---|---|---|---|
| CN100370068C (en) * | 2006-04-04 | 2008-02-20 | 天津工业大学 | Capping three-dimensional fabric, and its knitting method |
| CN102061543B (en) * | 2009-11-16 | 2012-09-12 | 吴江市恒生利喷织有限公司 | Dobby shedding device suitable for ripple-shedding loom |
| CN102517741A (en) * | 2011-12-14 | 2012-06-27 | 东华大学 | Opening device for stereo loom |
| CN103849975B (en) * | 2014-03-21 | 2015-09-16 | 施小平 | Automatical stitching multiply cloth and production method thereof is manufactured without slurry |
| CN106319717B (en) * | 2016-11-25 | 2018-11-06 | 佛山慈慧通达科技有限公司 | A kind of novel three dimension fabric loom shedding mechanism |
| CN107904758B (en) * | 2017-12-05 | 2020-09-18 | 南京玻璃纤维研究设计院有限公司 | Online uniform warp increasing and decreasing device and woven fabric weaving method |
| CN108677352A (en) * | 2018-06-11 | 2018-10-19 | 武汉纺织大学 | Weaving method and device |
| CN113089155A (en) * | 2021-04-07 | 2021-07-09 | 广州美术学院 | Manual dobby loom operated by liberation foot |
| CN113337938B (en) * | 2021-06-04 | 2022-12-20 | 杭州华芳布艺有限公司 | Double-sided concave-convex jacquard curtain decorative cloth and weaving method thereof |
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| CN1183123A (en) * | 1995-04-06 | 1998-05-27 | 亚历山大·比斯根 | Method of weaving a three-dimensionally shaped fabric zone |
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