CN102443936A - Forming method of various-thickness three-dimensional woven fabric - Google Patents

Abstract

Translated fromChinese

本发明提供了一种变厚度三维机织物的成型方法，其特征在于，包括：采用二维织机设备，在基础组织上采用接结方式织造接结多层三维织物，逐步变化织物厚度，得到变厚度三维机织物。与现有技术相比，本发明具有以下有益效果：变厚度织物一次成型，提高了织物的结构整体性和稳定性；织物厚度变化时基础组织不变化，织物表面外观没有变化；织物厚度的变化范围可根据使用需要而定，变化灵活，可设计性强；可在常规二维织机上织造，产品生产加工方便，成本在易接受范围内。

The invention provides a method for forming a variable-thickness three-dimensional woven fabric, which is characterized in that it includes: using two-dimensional loom equipment, weaving and bonding multi-layer three-dimensional fabrics on the basic weave by means of bonding, and gradually changing the thickness of the fabric to obtain Variable thickness three-dimensional woven fabric. Compared with the prior art, the present invention has the following beneficial effects: the one-time forming of the variable thickness fabric improves the structural integrity and stability of the fabric; the basic structure does not change when the fabric thickness changes, and the surface appearance of the fabric does not change; the fabric thickness changes The scope can be determined according to the needs of use, flexible in change, and strong in design; it can be woven on a conventional two-dimensional loom, and the production and processing of the product are convenient, and the cost is within an acceptable range.

Description

A kind of forming method of thickening degree three-dimensional woven fabric

Technical field

The invention belongs to textile technology field, be specifically related to the forming method of thickening degree three-dimensional woven fabric.

Background technology

The design feature of three-dimensional woven is that the yarn bundle of warp-wise and broadwise planar is 90 degree and interweaves or arrange; The interior performance of face of composite is provided; And the binder yarn Shu Ze on the structural thickness direction provides the stability of material; This design feature makes it have good tension to press, and the performance of shock resistance and high interlaminar shear strength is widely used in the industry profile in the fields such as Aero-Space, building, fishery, physical culture, military affairs.

Mostly common three-dimensional woven fabric is that size is single, the flat board of even structure, and under some particular surroundings, needs sectional dimension continually varying fabric to adapt to requirement.The design of the woven three dimensional fabric of cross section continually varying and weaving process still belong to blank in the research of China and Application Areas.The three-dimensional multilayer fabric that one Chinese patent application CN1182813A proposes, its number of plies is few, and structure is single, can not realize the variation of fabric thickness.The three dimensional fabric that patent CN1297074A proposed has certain limitation on thickness direction, can not realize the variation of fabric thickness.

Summary of the invention

The purpose of this invention is to provide a kind of forming method of three dimensional fabric of warp cross section continuous stepless variation, it is the enhance bone support body of weaving composite material profiled-cross-section section bar effectively.

In order to achieve the above object, the invention provides a kind of forming method of thickening degree three-dimensional woven fabric, it is characterized in that; Comprise: adopt two-dimensional loom equipment; On basic organization, adopt the access node mode to weave access node multi-layer three-dimension fabric, progressively change fabric thickness, obtain thickening degree three-dimensional woven fabric.

Preferably, the described concrete grammar that progressively changes fabric thickness is: progressively change weft yarn density, progressively change broadwise pad yarn quantity and progressively change at least a in the weft yarn quantity that interweaves with warp-wise pad yarn.

Compared with prior art, the present invention has following beneficial effect:

1) thickening degree fabric one-shot forming has improved the structural integrity and the stability of fabric;

2) basic organization does not change during caliper variation, and the fabric face outward appearance does not change;

3) excursion of fabric thickness can be decided according to the use needs, changes flexibly, and designability is strong.

4) can on conventional two-dimensional loom, weave, production is easy to process, and cost is accepted in the scope being prone to.

Description of drawings

Fig. 1 is a thickening degree three-dimensional woven fabric structural representation.

Fig. 2 is for progressively changing weft yarn density sketch map;

Fig. 3 is for progressively changing broadwise pad yarn sketch map;

Fig. 4 is for progressively changing the weft yarn sketch map that interweaves with warp-wise pad yarn.

Fig. 5 is a binding pick access node basic structure broadwise sketch map;

Fig. 6 is a binding pick access node basic structure pegging plan;

Fig. 7 a is the binding pick structural change pegging plan that broadwise is inserted 1 group of pad yarn;

Fig. 7 b is the binding pick structural change pegging plan that broadwise is inserted 2 groups of pad yarns;

Fig. 7 c is the binding pick structural change pegging plan that broadwise is inserted 3 groups of pad yarns;

Fig. 7 d is the binding pick structural change pegging plan that broadwise is inserted 4 groups of pad yarns;

Fig. 7 e is the binding pick structural change pegging plan that broadwise is inserted 5 groups of pad yarns;

Fig. 7 f is for introducing the binding pick structural change pegging plan of 1 group of weft yarn that interweaves with warp-wise pad yarn;

Fig. 7 g is for introducing the binding pick structural change pegging plan of 2 groups of weft yarns that interweave with warp-wise pad yarn;

Fig. 7 h is for introducing the binding pick structural change pegging plan of 3 groups of weft yarns that interweave with warp-wise pad yarn;

Fig. 7 i is for introducing the binding pick structural change pegging plan of 4 groups of weft yarns that interweave with warp-wise pad yarn;

Fig. 7 j is for introducing the binding pick structural change pegging plan of 5 groups of weft yarns that interweave with warp-wise pad yarn;

Fig. 8 a changes alignment problem figure for the binding pick stitching weft that changes weft yarn specification in the basic structure;

Fig. 8 b is for inserting the binding pick stitching weft variation alignment problem figure that the pad yarn also progressively changes its specification in broadwise;

Fig. 8 c changes alignment problem figure for introducing the binding pick stitching weft that interweaves weft yarn and progressively change its specification with warp-wise pad yarn;

Fig. 9 is self access node basic structure broadwise sketch map;

Figure 10 is self access node basic structure pegging plan;

Figure 11 a is self access node structural change pegging plan that broadwise is inserted 1 group of pad yarn;

Figure 11 b is self access node structural change pegging plan that broadwise is inserted 2 groups of pad yarns;

Figure 11 c is self access node structural change pegging plan that broadwise is inserted 3 groups of pad yarns;

Figure 11 d is self access node structural change pegging plan that broadwise is inserted 4 groups of pad yarns;

Figure 11 e is self access node structural change pegging plan that broadwise is inserted 5 groups of pad yarns;

Figure 11 f is for introducing self access node structural change pegging plan of 1 group of weft yarn that interweaves with warp-wise pad yarn;

Figure 11 g is for introducing self access node structural change pegging plan of 2 groups of weft yarns that interweave with warp-wise pad yarn;

Figure 11 h is for introducing self access node structural change pegging plan of 3 groups of weft yarns that interweave with warp-wise pad yarn;

Figure 11 i is for introducing self access node structural change pegging plan of 4 groups of weft yarns that interweave with warp-wise pad yarn;

Figure 11 j is for introducing self access node structural change pegging plan of 5 groups of weft yarns that interweave with warp-wise pad yarn;

Figure 12 a changes alignment problem figure for self stitching weft that changes weft yarn specification in the basic structure;

Figure 12 b changes alignment problem figure for self stitching weft that inserts the pad yarn in broadwise and progressively change its specification;

Figure 12 c changes alignment problem figure for introducing self stitching weft that interweaves weft yarn and progressively change its specification with warp-wise pad yarn.

Among the figure, 1,2,3 represent warp thread, weft yarn and pad yarn respectively.

The specific embodiment

Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes and modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute limited range equally.

As shown in Figure 1; Be thickening degree three-dimensional woven fabric structural representation; The present invention directly weaves out the stereoscopic multi-layer fabric on the basis of two-dimensional loom equipment, this fabric is basic organization with the simple tissue, adopts certain access node mode to constitute access node multi-layer three-dimension fabric; Under the condition that does not change basic organization, make its warp-wise thickness be stepless variation through changing fabric complete organization and yarn linear density.

As shown in Figure 2, for progressively changing weft yarn density sketch map, in the access node multiply cloth, if weft yarn density is low, the fabric of formation is thinner relatively.Through progressively increasing the line density of weft yarn, can progressively increase fabric thickness, vice versa.Progressively changing weft yarn density method can use separately, or uses with other method combination that changes fabric thickness.

As shown in Figure 3, for progressively changing broadwise pad yarn sketch map, in the access node multiply cloth, when not having inlaid thread, the fabric of formation is thinner relatively.Through between each layer fabric, progressively inserting one group of liner weft yarn along broadwise, can progressively increase fabric thickness, vice versa.Progressively changing broadwise pad yarn method can use separately, or uses with other method combination that changes fabric thickness.

As shown in Figure 4, for progressively changing the weft yarn sketch map that interweaves with warp-wise pad yarn.In the access node multiply cloth, warp-wise pad yarn is not during with other system yarns interwoven, and the fabric of formation is thinner relatively.Through successively introduce the weft yarn that interweaves with warp-wise pad yarn in broadwise, progressively increase fabric thickness, vice versa.The method that progressively changes the weft yarn that interweaves with warp-wise pad yarn can be used separately, or uses with other method combination that changes fabric thickness.

The above-mentioned means of combination utilization can change fabric warp-wise thickness in a big way.

As preferred version, on the basis that progressively changes weft yarn density, desire further to increase fabric thickness, can adopt the method that progressively changes broadwise pad yarn.

As the scheme that is more preferably, progressively changing weft yarn density and progressively changing on the basis of weft yarn density, desiring further increases fabric thickness again, can adopt the method that progressively changes the weft yarn that interweaves with warp-wise pad yarn.

Embodiment 1

Basic organization is that 2/2 warp is heavily flat, and the basic organization fabric layers is six layers, and access node is organized as the binding pick access node, and is as shown in Figure 5, is binding pick access node basic structure broadwise sketch map.Carbon fiber multifilament with four kinds of specifications is done weft yarn, is respectively: 3K, 6K, 9K, 12K are A, B, C, D to its number consecutively.

Adopt two-dimensional loom equipment; On basic organization, adopt the access node mode to weave access node multi-layer three-dimension fabric; Adopt progressively to change weft yarn density, progressively change broadwise pad yarn quantity and progressively change to combine and progressively change fabric thickness, obtain thickening degree three-dimensional woven fabric with three kinds of methods of weft yarn quantity that warp-wise pad yarn interweaves.

Last machine process is following:

As shown in Figure 6; Be binding pick access node basic structure pegging plan, shown in Fig. 7 a-Fig. 7 e, insert the binding pick structural change pegging plan of 1-5 group pad yarn for broadwise; Shown in Fig. 7 f-Fig. 7 j, for introducing the binding pick structural change pegging plan that 1-5 organizes the weft yarn that interweaves with warp-wise pad yarn; When weaving with a circulation be unit change once.

The principle that weft yarn changes is for beginning progressively upwards undersurface layer transition from middle wefts.

Shown in Fig. 8 a-8c; For changing weft yarn specification in the basic structure, inserting the pad yarn and progressively change interweave weft yarn and progressively change the binding pick stitching weft variation alignment problem figure of its specification of its specification and introducing and warp-wise pad yarn in broadwise; Every row represent one to weave circulation among the figure, and the weft yarn of the selected corresponding specification of this latitude is weaved in each letter representative in every row.

Embodiment 2

Basic organization is that 2/2 warp is heavily flat, and the basic organization fabric layers is six layers, and access node is organized as self access node, and is as shown in Figure 9, is self access node basic structure broadwise sketch map.Glass fibre multifilament with four kinds of specifications is done weft yarn, is respectively: 200,400,600,800, and be A ', B ', C ', D ' to its number consecutively.

Adopt two-dimensional loom equipment; On basic organization, adopt the access node mode to weave access node multi-layer three-dimension fabric; Adopt progressively to change weft yarn density, progressively change broadwise pad yarn quantity and progressively change to combine and progressively change fabric thickness, obtain thickening degree three-dimensional woven fabric with three kinds of methods of weft yarn quantity that warp-wise pad yarn interweaves.

Last machine process is following:

Shown in figure 10; Be self access node basic structure pegging plan; Shown in Figure 11 a-Figure 11 e, for broadwise is inserted self access node structural change pegging plan of 5 groups of pad yarns, shown in Figure 11 f-Figure 11 j; For introducing self access node structural change pegging plan of 5 groups of weft yarns that interweave with warp-wise pad yarn, when weaving with a circulation be unit change once.

The principle that weft yarn changes is for beginning progressively upwards undersurface layer transition from middle wefts.

Shown in Figure 12 a-Figure 12 c; For changing weft yarn specification in the basic structure, inserting the pad yarn and progressively change interweave weft yarn and progressively change self stitching weft variation alignment problem figure of its specification of its specification and introducing and warp-wise pad yarn in broadwise; Every row represent one to weave circulation among the figure, and the weft yarn of the selected corresponding specification of this latitude is weaved in each letter representative in every row.

Claims (2)

Translated fromChinese

1.一种变厚度三维机织物的成型方法，其特征在于，包括：采用二维织机设备，在基础组织上采用接结方式织造接结多层三维织物，逐步变化织物厚度，得到变厚度三维机织物。1. A molding method of a variable thickness three-dimensional woven fabric, characterized in that, comprising: adopting two-dimensional loom equipment, adopting a knotting mode to weave and join multilayer three-dimensional fabrics on the basic structure, gradually changing the thickness of the fabric, and obtaining variable thickness Three-dimensional woven fabric.2.如权利要求1所述的变厚度三维机织物的成型方法，其特征在于，所述的逐步变化织物厚度的具体方法为：逐步变化纬纱线密度、逐步变化纬向垫纱数量以及逐步变化与经向垫纱交织的纬纱数量中的至少一种。2. The molding method of variable thickness three-dimensional woven fabric as claimed in claim 1, is characterized in that, the concrete method of described stepwise change fabric thickness is: stepwise change weft yarn density, stepwise change weft laying quantity and step by step At least one of the number of weft yarns interwoven with the warp lap yarns is varied.

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