CN104762747A - 3D-braided two-ply board type fiber hybrid prefabricated member and preparation method thereof - Google Patents
3D-braided two-ply board type fiber hybrid prefabricated member and preparation method thereof Download PDFInfo
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- CN104762747A CN104762747A CN201510140894.9A CN201510140894A CN104762747A CN 104762747 A CN104762747 A CN 104762747A CN 201510140894 A CN201510140894 A CN 201510140894A CN 104762747 A CN104762747 A CN 104762747A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
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Abstract
The invention relates to a four-step process 3D-braided two-ply board type fiber hybrid prefabricated member and a preparation method thereof. The hybrid prefabricated member comprises two different kinds of braided yarns, and is characterized in that a fabric structure of the prefabricated member is a four-step process 3D-braided structure, two kinds of braided yarns are distributed in a two-ply board structure in the prefabricated member, and connection of two-ply boards is realized between the two kinds of knitted yarns through a hybrid braided structure. The preparation method provided by the invention is based on a four-step-process 3D braiding process and is characterized in that a 3D fiber hybrid braided structure is used as a connecting unit to form a fiber hybrid connecting region, so that the connection of two braided yarn plates at two sides of the prefabricated member is realized, yarn winding is performed in a partitioning manner, and braiding is performed in a partitioning manner. Two side plates of the two-ply board in the hybrid prefabricated member are connected together by using braiding fibers, so that the prefabricated member is high in structure integrity and stable in structure mechanical property, does not need a subsequent stitching procedure, is wide in application range, and can be suitable for various forms of braided yarns such as single yarns and plied yarns; mechanization can be realized for movement of the braided yarns in a braiding manner without human assistance, so that the preparation efficiency is improved.
Description
Technical field
The present invention relates to a kind of 3D to weave two plywood fiber types and mix prefabricated component and preparation method thereof, particularly relate to a kind of two kinds of different knitting yarns and mix prefabricated component and preparation method thereof in the 3D braided fiber of two board structures distributions in prefabricated component.
Background technology
Mix containing two or more different types of fiber in prefabricated component at 3D braided fiber, it is that the preparation of multifunctional material provides an important channel; Meanwhile, 3D woven preform structure is the space fiber net structure of height integration, and this structure has the mechanical property of shock resistance, endurance, many excellences such as not stratified.These characteristics makes 3D braided fiber mix prefabricated component in field extensive application such as Aero-Space, defence and military and communications and transportation.
It is that two plywood type 3D braided fibers mix prefabricated component that 3D braided fiber mixes the large class of one in prefabricated component, namely two kinds of different fibers in prefabricated component in two board structures distributions.Wherein, by correct Selecting parameter and rational Performance Match, the multifunction of material can be realized; Such as, side material plays protective action or radiation proof or inhales ripple effect on surface, opposite side material, in inner side, plays carrying effect, can play the performance requirement of structure-function integration.
At present, the preparation of two plywood type prefabricated components mainly adopts following two kinds of methods: 1. stacked sewing, namely first weaves stacked respectively by two kinds of different fibrage prefabricated components again, then two panels woven preform is carried out sewing up to form overall structure; The shortcoming of the method is: sewing process, while playing connection function, also can cause the problems such as fibre damage.2. laying co-curing method, namely first two kinds of fiber reinforcement woven preform are woven respectively, then two panels woven preform lamination is cured, resin is utilized two panels woven preform to be bonded together to form overall structure, the shortcoming of the method is: lack fiber between two-layer woven preform and connect, the globality of reinforcement is not strong, the poor-performing such as shock resistance, endurance of gained composite.
Summary of the invention
The technical problem to be solved in the present invention is that to make 3D braided fiber mix the structural integrity of prefabricated component high, and structural mechanical property is stablized, and does not need follow-up laying, quilting process in its manufacturing process.
In order to solve the problems of the technologies described above, a technical scheme of the present invention there is provided a kind of four step rule 3D and weaves two plywood fiber types and mix prefabricated component, containing two kinds of different types of knitting yarns in this fiber hybrid prefabricated component, it is characterized in that: this prefabricated component fabric construction adopts four step rule 3D braided structure; Two kinds of different types of knitting yarns distribute in two board structures in prefabricated component, a kind of knitting yarn is distributed in the side of prefabricated component cross section all the time, another kind of knitting yarn is distributed in the other side of prefabricated component cross section all the time, and the knitting yarn of side can not intrude other side; The connection that two kinds of knitting yarns realize between two plates at two plywood juncture areas by mixing braided structure, whole prefabricated component is the space fiber net structure of height integration, there is not layering in prefabricated component; Two kinds of knitting yarn distributions in prefabricated component cross section are metastable, arbitrary cross-sectional yarns distributed architecture with apart from this interface arbitrary integer machine cycles place, the yarn distributed architecture in prefabricated component cross section is identical.
Preferably, in described four step rule 3D braided structure or the axle yarn added between knitting yarn along part length direction, i.e. 0 degree of yarn, or only containing knitting yarn, i.e. angle yarn.
Preferably, in described two board structures, the thickness or identical that two kinds of knitting yarns form in both sides, or different.
Preferably, in described two board structures, the shape of cross section or identical that two kinds of knitting yarns form in both sides, or different.
Preferably, in described two board structures, the shape of cross section that two kinds of knitting yarns form in both sides has diversity, or is regular sections, or is odd-shaped cross section.
Preferably, described two plywood juncture areas realize the thickness mixing braided structure of connection function between two plates or keep fixing, or size is adjustable.
Another technical scheme of the present invention there is provided a kind of above-mentioned four step rule 3D and weaves the preparation method that two plywood fiber types mix prefabricated component, based on four step rule square 3D weaving, by controlling arrangement and the characteristics of motion of knitting yarn, make two kinds of knitting yarns in prefabricated component in two board structure distributions, it is characterized in that: utilize 3D braided fiber hybrid structure to form the fiber hybrid bonding pad between two plywood two plates as linkage unit, to realize the connection between two plates that the two kinds of knitting yarns in prefabricated component both sides are formed; During extension yarn, subregion carries out, or first carry out two kinds of fiber hybrid arrangement extension yarns to mixing bonding pad, then with two kinds of fibers, extension yarn is carried out respectively to the non-motley region of both sides, or first with two kinds of fibers, extension yarn being carried out respectively to the non-motley region of both sides, then carrying out two kinds of fiber hybrid arrangement extension yarns to mixing bonding pad; During braiding, subregion carries out, or first weaves the non-motley region of both sides, then weaves mixing bonding pad, or first weaves mixing bonding pad, then weaves the non-motley region of both sides.
Preferably, it is square that 3D as linkage unit weaves the cross section of hybrid structure: the line number of (i) its main body knitting yarn is odd number with columns and equal, (ii) knitting yarn on its square cross section right boundary, up-and-down boundary adheres to different kinds of fibers separately, and the distribution of (iii) knitting yarn in cross section is stable.
Preferably, the preparation method that described 3D weaves hybrid structure is: the line number that when row carries spindle, main body carries spindle keeps equal with columns and is odd number, and the spindle place spindle group of carrying when hanging yarn on right boundary and up-and-down boundary hangs different types of knitting yarn; So-called " spindle group ", is the set of one group of spindle, is made up of the spindle on braiding machine with same movement locus.
Preferably, in preparation process, as linkage unit 3D braided fiber hybrid structure or remain unchanged, to keep the thickness of fiber hybrid bonding pad constant; Or size is adjustable, to adjust the thickness mixing bonding pad.
Preferably, specifically comprise the steps:
The first step, according to the cross sectional dimensions requirement of prefabricated component, determine that the spindle that carries of the 3D braided fiber hybrid structure as linkage unit arranges, ensure that the main body of selected 3D braided fiber hybrid structure carries the line number of spindle equal with columns and be odd number, determine that the spindle that carries in the non-motley region of both sides arranges;
Second step, subregion carries out extension yarn: (i) carries out extension yarn to fiber hybrid bonding pad, 3D braided fiber hybrid structure selected by the first step, determine spindle group distribution situation wherein, make the spindle group of carrying spindle place in its cross section on right boundary and up-and-down boundary hang different types of knitting yarn, in units of spindle group, carry out extension yarn successively; (ii) carry out extension yarn to non-motley region, the spindle that carries according to the determined non-motley region of the first step arranges, and carries out extension yarn to the non-motley region of both sides;
3rd step, subregion weaves: (i) weaves non-motley region, according to four step rule square 3D weaving, non-motley region is woven, 1st step makes the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in non-motley region, 2nd step makes year spindle in the adjacent column in non-motley region along the distance of a column direction alternating movement spindle, 3rd step, in 4th step carry spindle the direction of motion respectively with the 1st step, 2nd step is contrary, through above-mentioned four step motions, non-motley region completes a braiding circulation, then the braiding of fiber hybrid bonding pad is carried out, (ii) fiber hybrid bonding pad is woven, according to four step rule square 3D weaving, fiber hybrid bonding pad is woven: the 5th step makes to mix the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in bonding pad, 6th step makes to mix the distance of year spindle in the adjacent column in bonding pad along a column direction alternating movement spindle, the direction of motion of carrying spindle in 7th step, the 8th step is contrary with the 5th step, the 6th step respectively, through above-mentioned four step motions, fiber hybrid bonding pad completes a braiding circulation, (iii) through above-mentioned eight steps motions, whole prefabricated component completes a braiding circulation, proceeds follow-up braiding, until prefabricated component reaches Len req according to (i), braid method described in (ii)
Beneficial effect of the present invention:
(1) this mixes prefabricated component is overall space fiber net structure, and structural integrity is high; It is stable that this mixes yarn distribution in prefabricated component cross section, and structural mechanical property is stablized;
(2) implementation method is 3D weaving integral forming method, does not need follow-up laying, quilting process, decreases the subsequent insult to fortifying fibre, decreases operation simultaneously, reduce cost; The motion weaving spindle in braiding process can realize mechanization, and do not need manual auxiliary, preparation efficiency improves.
(3) applied widely, all applicable to the various forms of knitting yarn such as single thread, strand.
Accompanying drawing explanation
Figure 1A is the linkage unit schematic diagram under two plywood two plate bonding pads adopt 3 row 3 to arrange row's warp mode, and in figure, "●" is kinds of fibers a, and "○" is kinds of fibers b, A is main body knitting yarn, and B is left margin knitting yarn, and C is lower boundary knitting yarn;
Figure 1B is the linkage unit spindle component cloth under two plywood two plate bonding pads adopt 3 row 3 to arrange row's warp mode, and in figure, 1,2,3 is spindle group 1,2,3;
Fig. 2 A is the linkage unit schematic diagram under two plywood two plate bonding pads adopt 5 row 5 to arrange row's warp mode, and in figure, "●" is kinds of fibers a, and "○" is kinds of fibers b;
Fig. 2 B is the linkage unit spindle component cloth under two plywood two plate bonding pads adopt 5 row 5 to arrange row's warp mode; In figure, 1,2,3,4,5 is spindle group 1,2,3,4,5;
Fig. 3 A is the three-dimensional shape schematic diagram that two plywood type 3D braided fibers mix prefabricated component;
Fig. 3 B is the cross-sectional yarns distribution map that two plywood type 3D braided fibers mix prefabricated component;
Fig. 3 C and Fig. 3 D is the subregion braid method that two plywood type 3D braided fibers mix prefabricated component, and in Fig. 3 A to Fig. 3 D, two plywood bonding pad linkage unit row warp modes are identical with Figure 1A and Figure 1B, and "●" is carbon fiber, and "○" is glass fibre;
Fig. 4 A is the three-dimensional shape schematic diagram that another two plywood type 3D braiding mixes prefabricated component;
Fig. 4 B is the cross-sectional yarns distribution map that another two plywood type 3D braiding mixes prefabricated component;
Fig. 4 C and Fig. 4 D is the subregion braid method that another two plywood type 3D braiding mixes prefabricated component, and in Fig. 4 A to Fig. 4 D, row's warp mode of bonding pad linkage unit is identical with Fig. 2 A and Fig. 2 B, and "●" is carbon fiber, and "○" is glass fibre.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Figure 1A and Figure 1B be two plywood bonding pads adopt 3 row 3 arrange row warp modes under linkage unit and spindle component cloth, linkage unit is under 3 row 3 arrange row's warp mode, carry spindle and be divided into 3 spindle groups, wherein, the spindle that carries on left margin and lower boundary belongs to spindle group 1,2, and right margin belongs to spindle group 3 with year spindle on coboundary; In units of spindle group, carry out grouping successively hang yarn, spindle group 1,2 is used for hanging kinds of fibers a, spindle group 3 is used for hanging kinds of fibers b, just the linkage unit under the row 3 row row warp mode of bonding pad 3 is obtained, in this unit, knitting yarn on left margin and lower boundary is kinds of fibers a, and the knitting yarn on right margin and coboundary is kinds of fibers b.
Fig. 2 A and Fig. 2 B be two plywood bonding pads adopt 5 row 5 arrange row warp modes under linkage unit and spindle component cloth, linkage unit is under 5 row 5 arrange row's warp mode, carry spindle and be divided into 5 spindle groups, wherein, the spindle that carries on left margin and lower boundary belongs to spindle group 1,2,3, and right margin belongs to spindle group 4,5 with year spindle on coboundary; In units of spindle group, carry out grouping successively hang yarn, spindle group 1,2,3 is used for hanging kinds of fibers a, spindle group 4,5 is used for hanging kinds of fibers b, just the linkage unit under 5 row 5 row row warp modes is obtained, in this unit, knitting yarn on left margin and lower boundary is kinds of fibers a, and the knitting yarn on right margin and coboundary is kinds of fibers b.
Mix prefabricated component and preparation method thereof for two concrete plywood type 3D braided fibers below, set forth the present invention.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can do various change and/or amendment to the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read the content that the present invention tells about.
Embodiment 1
As shown in Fig. 3 A to Fig. 3 D, be two plywood type 3D braiding mix prefabricated component three-dimensional shape schematic diagram, cross-sectional yarns distribution and braid method, in two plywood bonding pads, linkage unit adopts the linkage unit shown in Fig. 1.This two plywood fiber type mixes containing carbon fiber and glass fibre two kinds of knitting yarns in prefabricated component, and prefabricated component cross section is rectangle; Prefabricated component fabric construction is four step rule 3D braided structure; Carbon fiber and glass fibre distribute in two board structures in prefabricated component, carbon fiber is distributed in the left side of prefabricated component cross section, and glass fibre is distributed in the right side of prefabricated component cross section, and carbon fiber can not intrude right side from left side, similarly, glass fibre also can not intrude left side from right side; Realize being connected by fiber hybrid braided structure between carbon fiber side with glass fibre side, whole prefabricated component is the space fiber net structure of height integration, there is not layering in prefabricated component; Carbon fiber and the distribution of glass fibre in prefabricated component cross section are metastable, and from arbitrary cross section after an arbitrary integer machine cycles, the yarn distribution in prefabricated component cross section remains unchanged completely.
T700-12k carbon fiber and 1200tex glass can be adopted to carry out this preparation mixing prefabricated component, and concrete operations are:
The first step, according to the cross sectional dimensions requirement of prefabricated component, determine that the spindle that carries of the 3D braided fiber hybrid structure as bonding pad linkage unit arranges, ensure that the main body of selected linkage unit 3D braided fiber hybrid structure carries the line number of spindle equal with columns and be odd number, determine that the spindle that carries in non-motley region, both sides arranges; 3D braided fiber hybrid structure under selection 3 row 3 row row warp modes is as shown in Figure 1 as bonding pad linkage unit, and the quantity of linkage unit is taken as 5, and year spindle arrangement in non-motley region, both sides is elected 19 row 6 as and arranged.
Second step, subregion carries out extension yarn:
I () carries out extension yarn to fiber hybrid bonding pad, linkage unit 3D braided fiber hybrid structure selected by the first step, determine spindle group distribution situation wherein, make the spindle group of carrying spindle place on linkage unit right boundary and up-and-down boundary hang different types of knitting yarn, in units of spindle group, carry out extension yarn successively.Joined end to end by 5 linkage units, composition fiber hybrid bonding pad, carry out extension yarn by the fiber hybrid mode shown in Figure 1A and Figure 1B to each linkage unit, wherein, spindle group 1,2 is for hanging carbon fiber, and spindle group 3 is for hanging glass fibre.
(i i) carries out extension yarn to non-motley region, and the spindle that carries according to the determined non-motley region of the first step arranges, and carries out extension yarn to the non-motley region of both sides.Be used in non-motley region on the left of prefabricated component hanging carbon fiber to form carbon fiber layer, row's warp mode is that 19 row 6 arrange; Be used in non-motley region on the right side of prefabricated component hanging glass fibre to form glass layer, row's warp mode is that 19 row 6 arrange.
3rd step, subregion weaves:
I () weaves non-motley region, weave non-motley region according to four step rule square 3D weaving.1st step makes the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in non-motley region, 2nd step makes the adjacent column in non-motley region carries spindle along the distance of a column direction alternating movement spindle, and the direction of motion of carrying spindle in the 3rd step, the 4th step is contrary with the 1st step, the 2nd step respectively; Through above-mentioned four step motions, non-motley region completes a braiding circulation, then carries out the braiding mixing bonding pad.
(ii) fiber hybrid bonding pad is woven, according to four step rule square 3D weaving, fiber hybrid bonding pad is woven.5th step makes the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in fiber hybrid bonding pad, 6th step makes the adjacent column in fiber hybrid bonding pad carries spindle along the distance of a column direction alternating movement spindle, and the direction of motion of carrying spindle in the 7th step, the 8th step is contrary with the 5th step, the 6th step respectively; Through above-mentioned four step motions, fiber hybrid bonding pad completes a braiding circulation.
(iii) through above-mentioned eight steps motions, whole prefabricated component completes a braiding circulation, proceeds follow-up braiding, until prefabricated component reaches Len req according to (i), braid method described in (ii); The width that gained two plywood type 3D braided fiber mixes prefabricated component is about 15.4mm, and gross thickness is about 13.1mm, and wherein carbon fiber layer thickness is about: 5.4mm, and glass fibre layer thickness is about 5.4mm, and fiber hybrid articulamentum thickness is about 2.3mm.
Embodiment 2
As shown in Fig. 4 A to Fig. 4 D, for another two plywood type 3D braided fiber mixes the three-dimensional shape schematic diagram of prefabricated component, cross-sectional yarns distribution map and braid method thereof, its bonding pad linkage unit adopts Fig. 2 A and the row's warp mode shown in Fig. 2 B.This mixes containing carbon fiber and glass fibre two kinds of different types of knitting yarns in prefabricated component, and prefabricated component cross section is rectangle, and preform structure is four step rule 3D braided structure; Carbon fiber and glass fibre distribute in two board structures in prefabricated component, carbon fiber is distributed in the left side of prefabricated component cross section, and glass fibre is distributed in the right side of prefabricated component cross section, and carbon fiber can not intrude right side from left side, similarly, glass fibre also can not intrude left side from right side; Realize being connected by fiber hybrid braided structure between carbon fiber with glass fibre, whole prefabricated component is the space fiber net structure of height integration, there is not layering in prefabricated component; Carbon fiber and the distribution of glass fibre in prefabricated component cross section are metastable, and after an arbitrary integer machine cycles, the yarn distribution in prefabricated component cross section remains unchanged completely.
T700-12k carbon fiber and 1200tex high-strength fiber glass can be adopted to carry out this preparation mixing prefabricated component, and concrete operations are:
The first step, according to the cross sectional dimensions requirement of prefabricated component, determine that the spindle that carries of the 3D braided fiber hybrid structure as bonding pad linkage unit arranges, ensure that the main body of selected linkage unit 3D braided fiber hybrid structure carries the line number of spindle equal with columns and be odd number, determine that the spindle that carries in the non-motley region of both sides arranges; 3D braided fiber hybrid structure under selection 5 row 5 row row warp modes is as shown in Figure 2 as linkage unit, and the quantity of linkage unit is taken as 6, and year spindle arrangement in the non-motley region of both sides is elected 35 row 10 as and arranged.
Second step, subregion carries out extension yarn:
I () carries out extension yarn to fiber hybrid bonding pad, 3D braided fiber hybrid structure selected by the first step, determine spindle group distribution situation wherein, make the spindle group of carrying spindle place on linkage unit right boundary and up-and-down boundary hang different types of knitting yarn, in units of spindle group, carry out extension yarn successively.Joined end to end by 6 linkage units, composition fiber hybrid bonding pad, carry out extension yarn by the promiscuous mode shown in Fig. 2 A and Fig. 2 B to each linkage unit, wherein, spindle group 1,2,3 is for hanging carbon fiber, and spindle group 4,5 is for hanging glass fibre.
(ii) carry out extension yarn to non-motley region, the spindle that carries according to the determined non-motley region of the first step arranges, and carries out extension yarn to the non-motley region of both sides.Be used in non-motley region on the left of prefabricated component hanging carbon fiber to form carbon fiber layer, row's warp mode is that 35 row 10 arrange; Be used in non-motley region on the right side of prefabricated component hanging glass fibre to form glass layer, row's warp mode is that 35 row 10 arrange.
3rd step, subregion weaves:
I () weaves non-motley region, weave non-motley region according to four step rule square 3D weaving.1st step makes the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in non-motley region, 2nd step makes the adjacent column in non-motley region carries spindle along the distance of a column direction alternating movement spindle, and the direction of motion of carrying spindle in the 3rd step, the 4th step is contrary with the 1st step, the 2nd step respectively; Through above-mentioned four step motions, non-motley region completes a braiding circulation, then carries out the braiding of fiber hybrid bonding pad.
(ii) fiber hybrid bonding pad is woven, according to four step rule square 3D weaving, fiber hybrid bonding pad is woven.5th step makes the distance of carrying a spindle alternating movement spindle in the row direction in fiber hybrid bonding pad in adjacent lines, 6th step makes to carry spindle along the distance of a column direction alternating movement spindle in fiber hybrid bonding pad in adjacent column, and the direction of motion of carrying spindle in the 7th step, the 8th step is contrary with the 5th step, the 6th step respectively; Through above-mentioned four step motions, fiber hybrid bonding pad completes a braiding circulation.
(iii) through above-mentioned eight steps motions, whole two plywood type prefabricated components complete a braiding circulation, proceed follow-up braiding, until prefabricated component reaches Len req according to (i), braid method described in (ii); The width that gained two plywood type 3D braided fiber mixes prefabricated component is about 28.5mm, and gross thickness is about 20.8mm, and wherein the thickness of carbon fiber layer is about 8.5mm, and the thickness of glass layer is about 8.5mm, and the thickness of fiber hybrid articulamentum is about 3.8mm.
Claims (11)
1. four step rule 3D weaves two plywood fiber types and mixes a prefabricated component, containing two kinds of different types of knitting yarns in this fiber hybrid prefabricated component, it is characterized in that: this prefabricated component fabric construction adopts four step rule 3D braided structure; Two kinds of different types of knitting yarns distribute in two board structures in prefabricated component, a kind of knitting yarn is distributed in the side of prefabricated component cross section all the time, another kind of knitting yarn is distributed in the other side of prefabricated component cross section all the time, and the knitting yarn of side can not intrude other side; The connection that two kinds of knitting yarns realize between two plates at two plywood juncture areas by mixing braided structure, whole prefabricated component is the space fiber net structure of height integration, there is not layering in prefabricated component; Two kinds of knitting yarn distributions in prefabricated component cross section are metastable, arbitrary cross-sectional yarns distributed architecture with apart from this interface arbitrary integer machine cycles place, the yarn distributed architecture in prefabricated component cross section is identical.
2. a kind of four step rule 3D as claimed in claim 1 weaves two plywood fiber types and mixes prefabricated component, it is characterized in that, in described four step rule 3D braided structure or the axle yarn added between knitting yarn along part length direction, i.e. 0 degree of yarn, or only containing knitting yarn, i.e. angle yarn.
3. a kind of four step rule 3D as claimed in claim 1 weaves two plywood fiber types and mixes prefabricated component, it is characterized in that, in described two board structures, and the thickness or identical that two kinds of knitting yarns form in both sides, or different.
4. a kind of four step rule 3D as claimed in claim 1 weaves two plywood fiber types and mixes prefabricated component, it is characterized in that, in described two board structures, and the shape of cross section or identical that two kinds of knitting yarns form in both sides, or different.
5. a kind of four step rule 3D as claimed in claim 1 weaves two plywood fiber types and mixes prefabricated component, it is characterized in that, in described two board structures, the shape of cross section that two kinds of knitting yarns form in both sides has diversity, or is regular sections, or is odd-shaped cross section.
6. a kind of four step rule 3D as claimed in claim 1 weaves two plywood fiber types and mixes prefabricated component, it is characterized in that, described two plywood juncture areas realize the thickness mixing braided structure of connection function between two plates or keep fixing, or size is adjustable.
7. the four step rule 3D according to any one of claim 1 to 6 weaves the preparation method that two plywood fiber types mix prefabricated component, based on four step rule square 3D weaving, by controlling arrangement and the characteristics of motion of knitting yarn, make two kinds of knitting yarns in prefabricated component in two board structure distributions, it is characterized in that: utilize 3D braided fiber hybrid structure to form the fiber hybrid bonding pad between two plywood two plates as linkage unit, to realize the connection between two plates that the two kinds of knitting yarns in prefabricated component both sides are formed; During extension yarn, subregion carries out, or first carry out two kinds of fiber hybrid arrangement extension yarns to mixing bonding pad, then with two kinds of fibers, extension yarn is carried out respectively to the non-motley region of both sides, or first with two kinds of fibers, extension yarn being carried out respectively to the non-motley region of both sides, then carrying out two kinds of fiber hybrid arrangement extension yarns to mixing bonding pad; During braiding, subregion carries out, or first weaves the non-motley region of both sides, then weaves mixing bonding pad, or first weaves mixing bonding pad, then weaves the non-motley region of both sides.
8. preparation method as claimed in claim 7, it is characterized in that, it is square that 3D as linkage unit weaves the cross section of hybrid structure: the line number of (i) its main body knitting yarn is odd number with columns and equal, (ii) knitting yarn on its square cross section right boundary, up-and-down boundary adheres to different kinds of fibers separately, and the distribution of (iii) knitting yarn in cross section is stable.
9. preparation method as claimed in claim 8, it is characterized in that, the preparation method that described 3D weaves hybrid structure is: the line number that when row carries spindle, main body carries spindle keeps equal with columns and is odd number, and the spindle place spindle group of carrying when hanging yarn on right boundary and up-and-down boundary hangs different types of knitting yarn; So-called " spindle group ", is the set of one group of spindle, is made up of the spindle on braiding machine with same movement locus.
10. the preparation method as described in any one in claim 7 to 9, is characterized in that, in preparation process, as linkage unit 3D braided fiber hybrid structure or remain unchanged, to keep the thickness of fiber hybrid bonding pad constant; Or size is adjustable, to adjust the thickness mixing bonding pad.
11. preparation methods as described in any one in claim 7 to 9, is characterized in that, specifically comprise the steps:
The first step, according to the cross sectional dimensions requirement of prefabricated component, determine that the spindle that carries of the 3D braided fiber hybrid structure as linkage unit arranges, ensure that the main body of selected 3D braided fiber hybrid structure carries the line number of spindle equal with columns and be odd number, determine that the spindle that carries in the non-motley region of both sides arranges;
Second step, subregion carries out extension yarn: (i) carries out extension yarn to fiber hybrid bonding pad, 3D braided fiber hybrid structure selected by the first step, determine spindle group distribution situation wherein, make the spindle group of carrying spindle place in its cross section on right boundary and up-and-down boundary hang different types of knitting yarn, in units of spindle group, carry out extension yarn successively; (ii) carry out extension yarn to non-motley region, the spindle that carries according to the determined non-motley region of the first step arranges, and carries out extension yarn to the non-motley region of both sides;
3rd step, subregion weaves: (i) weaves non-motley region, according to four step rule square 3D weaving, non-motley region is woven, 1st step makes the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in non-motley region, 2nd step makes year spindle in the adjacent column in non-motley region along the distance of a column direction alternating movement spindle, 3rd step, in 4th step carry spindle the direction of motion respectively with the 1st step, 2nd step is contrary, through above-mentioned four step motions, non-motley region completes a braiding circulation, then the braiding of fiber hybrid bonding pad is carried out, (ii) fiber hybrid bonding pad is woven, according to four step rule square 3D weaving, fiber hybrid bonding pad is woven: the 5th step makes to mix the distance of carrying a spindle alternating movement spindle in the row direction in the adjacent lines in bonding pad, 6th step makes to mix the distance of year spindle in the adjacent column in bonding pad along a column direction alternating movement spindle, the direction of motion of carrying spindle in 7th step, the 8th step is contrary with the 5th step, the 6th step respectively, through above-mentioned four step motions, fiber hybrid bonding pad completes a braiding circulation, (iii) through above-mentioned eight steps motions, whole prefabricated component completes a braiding circulation, proceeds follow-up braiding, until prefabricated component reaches Len req according to (i), braid method described in (ii).
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