CN104060399A - Three-dimensional weaving method with cross section being pipe fitting shaped like Chinese character 'mu' - Google Patents
Three-dimensional weaving method with cross section being pipe fitting shaped like Chinese character 'mu' Download PDFInfo
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- CN104060399A CN104060399A CN201410312358.8A CN201410312358A CN104060399A CN 104060399 A CN104060399 A CN 104060399A CN 201410312358 A CN201410312358 A CN 201410312358A CN 104060399 A CN104060399 A CN 104060399A
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- pipe fitting
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- order font
- weaving method
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Abstract
The invention discloses a three-dimensional weaving method with a cross section being a pipe fitting shaped like the Chinese character 'mu'. The weaving method is characterized in that a fabric structure of the pipe fitting is one layer and more than one layer of two-dimension bidirectional weaving laminated structure or two-dimension three-direction weaving laminated structure. The overall knitting of the fabric structure is conducted by imitating a core model so as to guarantee the size of the inner molded surface of the fabric and prevent yarns from loosening or bending in the fabric. The knitting is divided into an inner pipe part and an outer pipe part, and an inner pipe serves as the reinforcing rib in the pipe fitting cross section. When the three-dimensional weaving method is adopted for preparing pipe fittings with the cross sections shaped like the Chinese character 'mu', mechanization can be achieved in the production process, work efficiency is improved, and quality stability is good; due to the fact that knitting is conducted directly on the core model, fiber in the fabric is tensioned, kinking does not occur, and the utilization rate of fiber strength is high; composite materials for the weaving laminated structure is more resistant to impact and fatigue and good in shear resistance compared with a traditional laminated structure.
Description
Technical field
The present invention relates to a kind of weaving of section tube, particularly a kind of cross section is the stereo weaving technology of order font pipe fitting, belongs to stereo weaving technical field.
Background technology
Automotive light weight technology is the important technical of energy-saving and emission-reduction, carrys out the important development direction that substituted metal is loss of weight with composite.The application of composite on automobile is from non-structural part, and people develop the application on structural member gradually.
At present people prepare composite material automobile structural member and substantially still adopt the method for traditional laying.Tradition laying method is prepared sheet material ratio and is easier to, but while preparing pipe fitting, be particularly just difficult to when section tube, such as bending pipe fitting, along the variable cross-section pipe fitting of part length direction shape of cross section and change in size, in cross section, there is the pipe fitting of reinforcement, be just difficult to realize by traditional laying method.
On new-energy automobile, have a kind of bending pipe fitting, its cross section is order font, with the very difficult preparation of current composite tradition laying method; This beam requires shock resistance as structural member, and traditional laminated composite shock resistance is lower; Auto parts and components require preparation efficiency high, batch production, and traditional laying method is prepared section tube need be auxiliary by hand in a large number, is not suitable for batch production.
Summary of the invention
To be solved by this invention is the technical problems that traditional laying method must be manual auxiliary in a large number in the time preparing section tube, and a kind of method that realizes required cross section geometric structure multiply cloth by stereo weaving method is provided.
In order to address the above problem, the invention provides a kind of cross section is the stereo weaving method of order font pipe fitting, it is characterized in that, the fabric construction of described pipe fitting be the above two dimension two of one deck and one deck to or two-dimentional three-dimensional braiding laminated construction; The integral weaving of fabric construction, with core profiling, to ensure the interior molding surface size of fabric, and ensures that lax and flexing do not occur yarn in fabric; Braiding is divided into two parts: inner and outer tubes, inner tube is as the reinforcement in pipe fitting cross section.
Preferably, described braid method specifically comprises the following steps:
Step 1): on 3 inner tube cores, weave respectively 3 inner tubes, reach and form inner tube wall thickness and the appearance and size that reinforcement needs;
Step 2): using step 1) make 3 inner tubes with inner tube core are arranged in juxtaposition as outer tube core, knit outer on tube core mould outside, reaches the braiding number of plies and appearance and size that outer tube needs;
Step 3): take out inner tube core and obtain the pipe fitting that cross section is order font.
Preferably, described cross section is that the pipe fitting of order font is straight pipe or bending pipe fitting along its length.
Preferably, described cross section is that the cross sectional dimensions of the pipe fitting of order font can change along pipe fitting length direction.
Preferably, described cross section is that the shape of cross section of the pipe fitting of order font can change along pipe fitting length direction.
Preferably, described cross section is that the cross section of the pipe fitting of order font is the shape in housing with two vertical reinforcements, and housing is polygon, ellipse, circle or similar rectangle.
Further, described housing is quadrangle.
Further, described housing is rectangle or trapezoidal.
Adopting stereo weaving method provided by the invention to prepare cross section is order font pipe fitting, and production process can realize mechanization, and production efficiency improves, quality stability is good, owing to being directly braiding on core, fiber tensioning in fabric, not flexing, fibre strength utilization rate is high; The composite of braiding laying structure is more shock-resistant than traditional laying structure, endurance, and anti-shear performance is good.From article cross sections, outer tube wall thickness is even everywhere, and the wall thickness of the reinforcement in outer tube is even, and outer tube wall thickness can be identical with reinforcement wall thickness, can be different, to select flexibly, and designability is strong.
Brief description of the drawings
Step 1 in Fig. 1 embodiment) schematic diagram;
Step 2 in Fig. 2 embodiment) schematic diagram;
Step 3 in Fig. 3 embodiment) schematic diagram;
Step 4 in Fig. 4 embodiment) schematic diagram;
Fig. 5 is that the cross section that embodiment makes is the cross sectional representation of order font pipe fitting;
Fig. 6 is that cross section housing is the cross sectional representation of oval-shaped order font pipe fitting;
Fig. 7 is that cross section housing is the cross sectional representation of the order font pipe fitting of similar rectangle;
Fig. 8 is that cross section housing is the cross sectional representation of circular order font pipe fitting;
Fig. 9 is that cross section housing is the cross sectional representation of hexagonal order font pipe fitting;
Figure 10 is that cross section housing is the cross sectional representation of trapezoidal order font pipe fitting.
Detailed description of the invention
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment
A kind of cross section is that the concrete steps of stereo weaving method of order font pipe fitting are as follows:
Step 1): on 3 inner tube cores 2, weave respectively 3 inner tubes 1, reach and form inner tube wall thickness and the appearance and size that reinforcement needs, as shown in Figure 1;
Step 2): by 3 steps 1) inner tube with inner tube core 21 that makes is arranged in a row, composition outer tube core, as shown in Figure 2;
Step 3): knit outer 3 on tube core mould outside, now the wall thickness of outer tube 3 adds that the thickness of the order font cross section pipe fitting housing wall thickness of wall thickness formation of inner tube 1 and the reinforcement of the wall thickness composition of adjacent two inner tubes 1 is identical, as shown in Figure 3, the cross section at this moment forming is that wall thickness is identical everywhere for the pipe fitting of order font;
Step 4): continue knit outer 3, make outer tube 3 reach the braiding number of plies and appearance and size that outer tube needs, as shown in Figure 4, the cross section forming is that in the pipe fitting cross section of order font, the wall thickness of inner reinforcement is less than pipe wall thickness, pipe wall thickness is even everywhere, and the wall thickness of inner two reinforcements is identical;
Step 5): by step 4) pipe fitting that makes is together with core 2, infiltrates resin, and solidify by liquid molding process such as resin transfer moldings in fabric, after solidifying, removes core 2, obtains the pipe fitting that cross section is order font, as shown in Figure 5.
Above-mentioned stereo weaving method is in preparation process, and fabric is stereo weaving on mould, and fabric can amount not be out of shape outward, and fiber can not relax, and the tube wall thickness of preparation is even, can not cause because wall unevenness is even composite material element stress raisers.
Adopt said method, also can the Formation cross-section shape pipe fitting fabric with inner reinforcement miscellaneous, as shown in Fig. 6-10, the pipe fitting cross section that inside is had to a reinforcement is decomposed into by outer tube 3 and several inner tubes 1 and forms, and inner tube 1 is used to form reinforcement.First on inner tube core 2, prepare inner tube 1 fabric, again these inner tubes 1 are constituted to outer tube core together with its inner tube core 2, knit outer 3 on tube core mould outside, form desired composite preform, finally together with mould by composite material shaping process such as resin transfer moldings, resin by injection in fabric, curing molding, remove again inner tube core 2, just obtain having in desired cross section the composite pipe of reinforcement.
Claims (8)
1. cross section is a stereo weaving method for order font pipe fitting, it is characterized in that, the fabric construction of described pipe fitting be the above two dimension two of one deck and one deck to or two-dimentional three-dimensional braiding laminated construction; The integral weaving of fabric construction, with core (2) profiling, to ensure the interior molding surface size of fabric, and ensures that lax and flexing do not occur yarn in fabric; Braiding is divided into two parts: inner tube (1) and outer tube (3), inner tube (1) is as the reinforcement in pipe fitting cross section.
2. cross section as claimed in claim 1 is the stereo weaving method of order font pipe fitting, it is characterized in that, specifically comprises the following steps:
Step 1): on 3 inner tube cores (2), weave respectively 3 inner tubes (1), reach and form inner tube wall thickness and the appearance and size that reinforcement needs;
Step 2): using step 1) inner tube (1) of make 3 band inner tube cores (2) is arranged in juxtaposition as outer tube core, knit outer (3) on tube core mould outside, reaches the braiding number of plies and appearance and size that outer tube needs;
Step 3): take out inner tube core (2) and obtain the pipe fitting that cross section is order font.
3. cross section as claimed in claim 2 is the stereo weaving method of order font pipe fitting, it is characterized in that, described cross section is that the pipe fitting of order font is straight pipe or bending pipe fitting along its length.
4. cross section as claimed in claim 2 is the stereo weaving method of order font pipe fitting, it is characterized in that, described cross section is that the cross sectional dimensions of the pipe fitting of order font can change along pipe fitting length direction.
5. cross section as claimed in claim 2 is the stereo weaving method of order font pipe fitting, it is characterized in that, described cross section is that the shape of cross section of the pipe fitting of order font can change along pipe fitting length direction.
6. cross section as claimed in claim 2 is the stereo weaving method of order font pipe fitting, it is characterized in that, described cross section is that the cross section of the pipe fitting of order font is the shape in housing with two vertical reinforcements, and housing is polygon, ellipse, circle or similar rectangle.
7. cross section as claimed in claim 7 is the stereo weaving method of order font pipe fitting, it is characterized in that, described housing is quadrangle.
8. cross section as claimed in claim 8 is the stereo weaving method of order font pipe fitting, it is characterized in that, described housing is rectangle or trapezoidal.
Priority Applications (1)
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CN201410312358.8A CN104060399B (en) | 2014-07-02 | 2014-07-02 | A kind of cross section is the stereo weaving method of order font pipe fitting |
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CN201410312358.8A CN104060399B (en) | 2014-07-02 | 2014-07-02 | A kind of cross section is the stereo weaving method of order font pipe fitting |
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CN104060399A true CN104060399A (en) | 2014-09-24 |
CN104060399B CN104060399B (en) | 2016-04-06 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113136646A (en) * | 2021-03-01 | 2021-07-20 | 西安理工大学 | Method for customizing protective equipment product in personalized mode |
Citations (8)
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JPS6440648A (en) * | 1987-08-05 | 1989-02-10 | Nippon Pillar Packing | Lattice knitting structure and its production |
JPH04327910A (en) * | 1991-04-26 | 1992-11-17 | Toray Ind Inc | Reinforcing tubular preform material |
US5225262A (en) * | 1991-04-29 | 1993-07-06 | A. W. Chesterton Co. | Braided high-temperature packing comprising a core of folded flexible graphite sheet |
JP2000178855A (en) * | 1998-12-15 | 2000-06-27 | Toyota Autom Loom Works Ltd | Fiber structure for filling gap |
JP2007076312A (en) * | 2005-09-16 | 2007-03-29 | Murata Mach Ltd | Braided frp pipe having impact energy absorption propety |
CN102051764A (en) * | 2011-01-11 | 2011-05-11 | 东华大学 | Three-dimensionally braiding method of indented pyramid sleeve fabric |
CN102102276A (en) * | 2011-01-11 | 2011-06-22 | 东华大学 | Net-size preparation method of three-dimensional woven pyramid sleeve |
CN103276527A (en) * | 2013-06-20 | 2013-09-04 | 宜兴市华恒高性能纤维织造有限公司 | Device and method for realizing integral knitting for horizontal division area structures |
-
2014
- 2014-07-02 CN CN201410312358.8A patent/CN104060399B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6440648A (en) * | 1987-08-05 | 1989-02-10 | Nippon Pillar Packing | Lattice knitting structure and its production |
JPH04327910A (en) * | 1991-04-26 | 1992-11-17 | Toray Ind Inc | Reinforcing tubular preform material |
US5225262A (en) * | 1991-04-29 | 1993-07-06 | A. W. Chesterton Co. | Braided high-temperature packing comprising a core of folded flexible graphite sheet |
JP2000178855A (en) * | 1998-12-15 | 2000-06-27 | Toyota Autom Loom Works Ltd | Fiber structure for filling gap |
JP2007076312A (en) * | 2005-09-16 | 2007-03-29 | Murata Mach Ltd | Braided frp pipe having impact energy absorption propety |
CN102051764A (en) * | 2011-01-11 | 2011-05-11 | 东华大学 | Three-dimensionally braiding method of indented pyramid sleeve fabric |
CN102102276A (en) * | 2011-01-11 | 2011-06-22 | 东华大学 | Net-size preparation method of three-dimensional woven pyramid sleeve |
CN103276527A (en) * | 2013-06-20 | 2013-09-04 | 宜兴市华恒高性能纤维织造有限公司 | Device and method for realizing integral knitting for horizontal division area structures |
Non-Patent Citations (1)
Title |
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刘海文等: "目字形立体机织物预制件的织制", 《棉纺织技术》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113136646A (en) * | 2021-03-01 | 2021-07-20 | 西安理工大学 | Method for customizing protective equipment product in personalized mode |
CN113136646B (en) * | 2021-03-01 | 2022-09-09 | 西安理工大学 | Method for customizing protective equipment product in personalized mode |
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CN104060399B (en) | 2016-04-06 |
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