CN111455524A - Composite structure fabric and weaving method thereof - Google Patents
Composite structure fabric and weaving method thereof Download PDFInfo
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- CN111455524A CN111455524A CN202010377615.1A CN202010377615A CN111455524A CN 111455524 A CN111455524 A CN 111455524A CN 202010377615 A CN202010377615 A CN 202010377615A CN 111455524 A CN111455524 A CN 111455524A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
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- D—TEXTILES; PAPER
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- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
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Abstract
The invention discloses a composite structure fabric and a weaving method thereof, the composite structure fabric comprises warp yarns, weft yarns, X-direction yarns, Y-direction yarns and normal yarns, the normal yarns connect all structural units into an integral structure, and the number of layers of the normal yarns penetrating through the fabric is adjustable, so that the interlaminar shearing performance of the fabric is improved, and meanwhile, the fabric has the characteristic of strong designability of function and mechanical property; the weaving method is characterized in that a single normal yarn opening and yarn feeding control system is added on the basis of the existing angle interlocking and orthogonal weaving technology, so that the movement stroke of the single normal yarn is adjusted according to the design requirement, the three-dimensional integral structure woven fabric with different connecting layers is formed, the process is simple, the operation is convenient, the universality is high, and the requirements of the fields of aerospace, military protection and the like on the structure-function integrated composite material can be met.
Description
Technical Field
The invention relates to a composite structure fabric and a weaving method thereof, belonging to the field of three-dimensional fabrics and weaving methods thereof.
Background
The three-dimensional textile composite material has excellent damage tolerance and anti-delamination capability, and is widely applied to the fields of aerospace, military protection and the like. With the continuous expansion of the application range, higher integrated requirements of bearing, structure and function are provided for the application range, and multiple fabric structures are required to exist simultaneously in order to meet multiple functions of the same part. And two or more fabric structures are bonded only by a matrix, so that the formed composite material part has the problems of poor integrity, easy damage to a layered part and the like, and therefore, a fabric structure which can meet multiple functions and has good integrity is urgently needed. The patent "a new structure three-dimensional fabric and its knitting method" (publication No. CN103061003B), "a new structure three-dimensional fabric and its knitting method" (publication No. CN103061004B), "a new structure three-dimensional fabric and its knitting method" (publication No. CN103088546B) respectively introduce three-dimensional multidirectional structure and shallow cross-linking structure, three-way orthogonal structure and shallow cross-linking structure, three-dimensional multidirectional structure and three-way orthogonal structure combined three-dimensional fabric and its knitting method, but these three patent fabric structures are the accumulation of the horizontal direction, can't satisfy the multi-layer multi-functional performance requirement of the thickness direction.
Disclosure of Invention
The invention provides a composite structure fabric and a weaving method thereof, aiming at solving the problem that the fabric in the prior art cannot meet the multi-layer and multi-functional requirements of multiple layers in the thickness direction.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a composite structure fabric and a weaving method thereof are provided, the composite structure fabric comprises warp yarns, weft yarns, X-direction yarns, Y-direction yarns and normal yarns, the warp yarns and the weft yarns are interwoven, the X-direction and the Y-direction are straightened along the width direction and the length direction of the fabric, and the normal yarns connect all structural units into an integral structure.
The warp yarns and the weft yarns form an angle interlocking structure, the X-direction yarns, the Y-direction yarns and the normal yarns form an orthogonal structure, and the normal yarns are interwoven with other yarns.
In order to realize that the normal yarns penetrate through the fabric with adjustable layer number according to different functional requirements, the normal yarns can penetrate through the thickness of the fabric and can also penetrate through and connect with each other in a partial area.
According to design requirements, the angle interlocking structural units and the orthogonal structural units are orderly stacked in a multilayer mode to form an integral structure.
The composite structure fabric can meet the requirements of a bearing-structure-function integrated composite material.
According to the weaving method of the composite structure fabric, on the basis of the existing angle interlocking and orthogonal weaving technology, the single normal yarn opening and the yarn feeding control system are added, so that the movement stroke of the single normal yarn is adjusted according to the design requirement, and the composite structure fabric with different connecting layers is formed.
The weaving method of the further composite structure fabric comprises the following steps which are connected in sequence:
(1) initial yarn arrangement: arranging M rows of warps with N rows on a three-dimensional loom warp spindle; arranging Y-direction yarns in M 'rows and N' columns on a Y-direction spindle; arranging a row of normal yarns on the left side and the right side of the Y-direction yarns respectively, wherein the total number of the normal yarns is N' -1, and the total number of the structural units is N;
(2) opening movement: under the driving of the shedding device, adjacent warps in the angle interlocking area move up and down relatively to form a shed; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the shed position of the layer a, the lower layer of normal yarns reach the shed position of the layer b, and the Y-direction yarns form a shed;
(3) weft insertion movement: in a shed formed by warp yarns and Y-direction yarns, weft yarns are introduced layer by a weft insertion device, and after the weft insertion is finished, a beating-up device translates towards a weaving opening to beat up the weft yarns to form a composite structure;
(4) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns respectively feed out different yarn lengths;
(5) secondary opening movement: under the driving of the shedding device, the adjacent warps in the angle interlocking area move up and down relatively to form a shed again; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the position of a c-th layer shed, the lower layer of normal yarns reach the position of a d-th layer shed, and Y-direction yarns form sheds;
(6) and (3) secondary weft insertion movement: respectively introducing weft yarns into each layer of shed in the mode of the step (3) in the shed formed by the warp yarns and the Y-direction yarns, and after the weft insertion is finished, translating the beating-up device to a weaving opening and tightly beating up the weft yarns to form a composite structure;
(7) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns respectively feed out different yarn lengths;
(8) and (4) repeating the process steps (2) to (7) to the target length of the fabric, thus obtaining the multilayer composite structure fabric.
In the steps (2) and (5), the normal yarns in the orthogonal area relatively move to reach the position of the appointed warp yarn layer, and can be set according to the design requirement.
The invention utilizes normal yarns to orderly superpose all the structures into an integral fabric structure, so that the composite structure fabric has the characteristic of layered design of function and mechanical property. The weaving method is characterized in that a single normal yarn opening and a yarn feeding control system are added on the basis of the existing angle interlocking and orthogonal weaving technology, so that the penetration position of the single normal yarn is controllable, the process is simple, and the operability is strong.
Drawings
FIG. 1 is a schematic view of a prior art corner interlock arrangement;
FIG. 2 is a schematic diagram of a prior art orthogonal structure;
FIG. 3 is a schematic representation of a composite fabric structure with normal yarns connecting orthogonal thicknesses according to the present invention;
FIG. 4 is a schematic representation of a composite fabric structure of example 1 of the present invention with through thickness normal yarns;
FIG. 5 is a schematic representation of the construction of a composite fabric of variable joint thickness of normal yarns according to example 2 of the present invention;
fig. 6 is a schematic view of a fabric structure of a composite structure of an angle interlocking structure + orthogonal + angle interlocking structure in example 3 of the present invention.
In the figure, 1 is a warp yarn, 2 is a weft yarn, 3 is an X-direction yarn, 4 is a Y-direction yarn, and 5 is a normal yarn.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the content of the present invention, but the content of the present invention is not limited to the following examples.
In each example, the composite structure fabric comprises warp yarns 1, weft yarns 2, X-direction yarns 3, Y-direction yarns 4 and normal yarns 5 which are mutually interwoven, wherein the warp yarns 1 move up and down in the fabric to form interweaving with the weft yarns 2; the X-direction yarns 3, the Y-direction yarns 4 and the normal yarns 5 are perpendicular to each other, the X-direction yarns 3 and the Y-direction yarns 4 are bound and fixed by the normal yarns 5, and the angle interlocking and orthogonal structures are connected into a whole by the normal yarns 5.
Nothing in this specification is said to apply to the prior art.
Specific examples of the present invention are given below.
Example 1
A composite structure fabric with the width of 400mm is developed, warp yarns and Y-direction yarns are carbon fiber 3K × 2 plied yarns, weft yarns and X-direction yarns are carbon fiber 3K × 4 plied yarns, normal yarns are carbon fiber 3K × single yarns, the number of warp yarns is 4 layers, Y-direction yarns are 3 layers, the warp density of the fabric is 80/10 Cm, the weft density of the fabric is 30/10 Cm, the fabric structure is formed by 4 layers of angle interlocking and 3 layers of orthogonal yarns, and the normal yarns penetrate through the thickness of the fabric to be connected into a whole.
Designing technological parameters of the fabric:
(1) the number of warp yarn rows is 320, the number of Y-direction yarn rows is 320, the number of normal yarn rows is 319, and the number of angle interlocking structures and orthogonal structures is 2;
(2) the number of layers of warp yarns is 4, the number of layers of Y-direction yarns is 3, and the number of layers of sheds is 8.
The method comprises the following specific implementation steps:
1) initial yarn arrangement, wherein 4 rows of × 320 rows of warp yarns are arranged on a warp yarn spindle, 3 rows of × 320 rows of Y-direction yarns are arranged on a Y-direction yarn spindle, and the total 319 rows of normal yarns are arranged on the left side and the right side of the Y-direction yarns;
2) opening movement: under the driving of the opening device, the adjacent warps in the angle interlocking area move up and down relatively to form a 5-layer shed; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the position of a 1 st layer of shed, and the lower layer of normal yarns reach the bottom layer of an 8 th layer of shed to form 4 layers of sheds;
3) weft insertion movement: in the 8-layer shed, weft yarns are introduced layer by the weft insertion device, and after the weft insertion is finished, the beating-up device translates towards the weaving opening and tightens the weft yarns to form an integral structure;
4) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns feed the same amount of yarn length;
5) and (3) repeating the process steps 2) -3) to the target length of the fabric, thus obtaining the multilayer composite structure three-dimensional woven fabric.
In the step 2), the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the position of the 1 st layer of shed, and the lower layer of normal yarns reach the bottom layer of the 8 th layer of shed. The upper layer normal yarns reach the 5 th layer shed layer and the lower layer normal yarns reach the 8 th layer shed bottom layer according to the design requirement, so that the integral fabric only in a connection angle interlocking and orthogonal structure is formed.
Example 2
The method is characterized by developing a complex fabric with the width of 400mm, wherein warp yarns and Y-direction yarns are carbon fiber 3K × 2 plied yarns, weft yarns and X-direction yarns are carbon fiber 3K × 4 plied yarns, normal yarns are carbon fiber 3K × single yarns, the number of warp yarns is 4 layers, Y-direction yarns are 3 layers, the warp density of the fabric is 80/10 Cm, the weft density of the fabric is 30/10 Cm, the fabric structure is a combination of 4-layer angle interlocking and 3-layer orthogonal, the normal yarns partially penetrate through the thickness, and the partial area is connected with the 3-layer and 5-layer integral structures.
Designing technological parameters of the fabric:
(1) the number of warp yarn rows is 320, the number of Y-direction yarn rows is 320, the number of normal yarn rows is 319, and the number of 2.5D angle interlocking structures and orthogonal structures is 2;
(2) the number of layers of warp yarns is 4, the number of layers of Y-direction yarns is 3, and the number of layers of sheds is 8.
The method comprises the following specific implementation steps:
1) initial yarn arrangement, wherein 4 rows of × 320 rows of warp yarns are arranged on a warp yarn spindle, 3 rows of × 320 rows of Y-direction yarns are arranged on a Y-direction yarn spindle, and the total 319 rows of normal yarns are arranged on the left side and the right side of the Y-direction yarns;
2) opening movement: under the driving of the opening device, the adjacent warps in the angle interlocking area move up and down relatively to form a 5-layer shed; the normal yarns in the orthogonal area move relatively, the normal yarns in the upper layer partially reach the shed position of the layer 1, partially reach the shed position of the layer 3, partially reach the shed position of the layer 5, and the normal yarns in the lower layer reach the bottom layer of the shed of the layer 8 to form a shed of the layer 8;
3) weft insertion movement: in the 8-layer shed, weft yarns are introduced layer by the weft insertion device, and after the weft insertion is finished, the beating-up device translates towards the weaving opening and tightens the weft yarns to form an integral structure;
4) yarn feeding movement: under the drive of a normal yarn feeding system, according to different penetration thicknesses, the normal yarns feed out different yarn lengths;
5) secondary opening movement: under the driving of the opening device, the adjacent warps in the angle interlocking area move up and down relatively to form 5 layers of sheds again; the normal yarns in the orthogonal area move relatively, the normal yarns in the upper layer partially reach the shed position of the layer 1, partially reach the shed position of the layer 3, partially reach the shed position of the layer 5, and the normal yarns in the lower layer reach the bottom layer of the shed in the layer 8 to form the shed in the layer 8 again; 6) and (3) secondary weft insertion movement: respectively introducing weft yarns into each layer of shed again in 8 layers of sheds according to the mode of the step 3), and after weft insertion is finished, translating the beating-up device to a weaving opening to tighten the weft yarns to form an integral structure;
7) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns feed out different yarn lengths;
8) and (3) repeating the process steps 2) to 7) to the target length of the fabric, thus obtaining the multilayer composite structure fabric.
In the steps 2) and 5), the normal yarns in the orthogonal area move relatively, the upper layer normal yarns partially reach the 1 st layer shed position, partially reach the 3 rd layer shed position, partially reach the 5 th layer shed position, and the lower layer normal yarns reach the 8 th layer shed bottom layer.
Example 3
The method is characterized by developing a complex fabric with the width of 400mm, wherein warp yarns and Y-direction yarns are carbon fiber 3K × 2 plied yarns, weft yarns and X-direction yarns are carbon fiber 3K × 4 plied yarns, normal yarns are carbon fiber 3K × single yarns, the number of warp yarns is 6 layers, Y-direction yarns are 3 layers, the warp density of the fabric is 80/10 Cm, the weft density of the fabric is 30/10 Cm, the fabric structure is 3-layer angle interlocking + 3-layer orthogonal combination + 3-layer angle interlocking, and the normal yarns are connected with an upper part angle interlocking structure and a lower part angle interlocking structure to form the whole fabric.
Designing technological parameters of the fabric:
(1) the number of warp rows is 320, the number of Y-direction yarn rows is 320, the number of normal yarn rows is 319, and the number of angle interlocking structural units and orthogonal structures is 3;
(2) the number of warp layers is 6, the number of Y-direction yarns is 3, and the number of shed layers is 10.
The method comprises the following specific implementation steps:
1) initial yarn arrangement, wherein 3 rows × 320 rows of warp yarns are arranged on the warp yarn spindle in the 1 st angle interlocking area, 3 layers × 320 rows of Y-direction yarns are arranged on the Y-direction yarn spindle in the orthogonal area, 3 rows × 320 rows of warp yarns are arranged on the warp yarn spindle in the 2 nd angle interlocking area, and 319 rows of normal yarns are arranged on the normal yarn spindle;
2) opening movement: under the driving of the opening device, adjacent warps in the angle interlocking area move up and down relatively to form 4 layers of sheds and 4 layers of sheds; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the upper layer of the 4 th layer of shed, and the lower layer of normal yarns reach the lower layer of the 7 th layer of shed, so that the 4-layer shed is formed;
3) weft insertion movement: in 10 layers of sheds, weft yarns are introduced layer by the weft insertion device, and after weft insertion is finished, the beating-up device translates towards a weaving opening and tightens the weft yarns to form an integral structure;
4) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns feed the same amount of yarn length;
5) secondary opening movement: under the driving of the opening device, the adjacent warps in the angle interlocking area move up and down relatively to form 4 layers of sheds and 4 layers of sheds again; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the upper layer of the 4 th layer of shed, the lower layer of normal yarns reach the lower layer of the 7 th layer of shed, and the 4-layer shed is formed again;
6) and (3) secondary weft insertion movement: respectively introducing weft yarns into each layer of shed again in 10 layers of sheds according to the mode of the step 3), and after weft insertion is finished, translating the beating-up device to a weaving opening to tighten the weft yarns to form an integral structure;
7) yarn feeding movement: the normal yarns are driven by the normal yarn feeding system again to feed the same amount of yarn length;
8) and (3) repeating the process steps 2) to 7) to the target length of the fabric, thus obtaining the fabric with the composite structure.
In the steps 2) and 5), the normal yarns in the orthogonal area move relatively, the upper layer normal yarns reach the upper layer position of the 4 th layer shed, and the lower layer normal yarns reach the lower layer of the 7 th layer shed. According to design requirements, the upper layer of normal yarns reach the 1 st layer of shed layers, and the lower layer of normal yarns reach the 10 th layer of shed bottom layers, so that the through-thickness integral fabric is formed.
Claims (5)
1. A composite structural fabric characterized by: comprises warp, weft, X-direction yarns, Y-direction yarns and normal yarns; the warp yarns and the weft yarns are interwoven with each other, the X direction and the Y direction are straightened along the width direction and the length direction of the fabric, the normal yarns connect all the structural units into an integral structure, and the number of layers of the normal yarns penetrating through the fabric is adjustable.
2. The composite structural fabric of claim 1, wherein: the fabric structure is an integral structure formed by orderly overlapping angle interlocking structure units and orthogonal structure units in a multi-level manner, for example, 4 layers of angle interlocking structures +3 layers of orthogonal structures, 3 layers of angle interlocking structures +3 layers of orthogonal +3 layers of angle interlocking, and the like, and is not limited to the fabric structure in the example.
3. The composite structural fabric of claim 1, wherein: the normal yarns of the fabric penetrate through the fabric layer number and are adjustable, can penetrate through the thickness of the fabric, and can also penetrate through and connect with the fabric in regions; for example, the normal yarns run through the thickness of the fabric, the normal yarns connect 3 layers, connect 5 layers, connect 3 layers in partial areas, connect 5 layers in partial areas, etc., but not limited to the fabric structure in the example.
4. A weaving method of a composite structure fabric is characterized in that: on the basis of the existing angle interlocking and orthogonal weaving technology, a single normal yarn opening and a yarn feeding control system are added, so that the movement stroke of the single normal yarn is adjusted according to the design requirement, and the composite structure fabric with different connecting layer numbers is formed.
5. The method of claim 4, wherein the step of weaving comprises: comprises the following steps that:
(1) initial yarn arrangement: arranging M rows of warps with N rows on a three-dimensional loom warp spindle; arranging Y-direction yarns in M 'rows and N' columns on a Y-direction spindle; arranging a row of normal yarns on the left side and the right side of the Y-direction yarns respectively, wherein the total number of the normal yarns is N' -1, and the total number of the structural units is N;
(2) opening movement: under the driving of the shedding device, adjacent warps in the angle interlocking area move up and down relatively to form a shed; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the shed position of the layer a, the lower layer of normal yarns reach the shed position of the layer b, and the Y-direction yarns form a shed;
(3) weft insertion movement: in a shed formed by warp yarns and Y-direction yarns, weft yarns are introduced layer by a weft insertion device, and after the weft insertion is finished, a beating-up device translates towards a weaving opening to beat up the weft yarns to form a composite structure;
(4) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns respectively feed out different yarn lengths;
(5) secondary opening movement: under the driving of the shedding device, the adjacent warps in the angle interlocking area move up and down relatively to form a shed again; the normal yarns in the orthogonal area move relatively, the upper layer of normal yarns reach the position of a c-th layer shed, the lower layer of normal yarns reach the position of a d-th layer shed, and Y-direction yarns form sheds;
(6) and (3) secondary weft insertion movement: respectively introducing weft yarns into each layer of shed in the mode of the step (3) in the shed formed by the warp yarns and the Y-direction yarns, and after the weft insertion is finished, translating the beating-up device to a weaving opening and tightly beating up the weft yarns to form a composite structure;
(7) yarn feeding movement: under the drive of the normal yarn feeding system, the normal yarns respectively feed out different yarn lengths;
(8) and (4) repeating the process steps (2) to (7) to the target length of the fabric, thus obtaining the multilayer composite structure fabric.
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| WO1990014454A1 (en) * | 1989-05-26 | 1990-11-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Three-dimensional textile and method of producing the same |
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| CN101718020A (en) * | 2009-12-18 | 2010-06-02 | 东华大学 | Manufacturing method for three-dimensional textile having orthogonal structure and plain weave structure |
| CN106987979A (en) * | 2017-05-26 | 2017-07-28 | 天津工业大学 | A kind of angle-interlock fabric and its method for weaving containing oblique yarn |
| CN107487048A (en) * | 2016-06-13 | 2017-12-19 | 杜邦公司 | Fabric composite for thermal protection article |
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2020
- 2020-05-07 CN CN202010377615.1A patent/CN111455524A/en active Pending
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| WO1990014454A1 (en) * | 1989-05-26 | 1990-11-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Three-dimensional textile and method of producing the same |
| CN1540052A (en) * | 2003-11-01 | 2004-10-27 | 浙江工程学院 | Method for weaving 3D textile with variable cross section appicable to composite material |
| CN101718020A (en) * | 2009-12-18 | 2010-06-02 | 东华大学 | Manufacturing method for three-dimensional textile having orthogonal structure and plain weave structure |
| CN107487048A (en) * | 2016-06-13 | 2017-12-19 | 杜邦公司 | Fabric composite for thermal protection article |
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Application publication date: 20200728 |