CN112095197A - Preparation method of variable cross-section filament bundle - Google Patents
Preparation method of variable cross-section filament bundle Download PDFInfo
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- CN112095197A CN112095197A CN202010977851.7A CN202010977851A CN112095197A CN 112095197 A CN112095197 A CN 112095197A CN 202010977851 A CN202010977851 A CN 202010977851A CN 112095197 A CN112095197 A CN 112095197A
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- Prior art keywords
- filament bundle
- variable cross
- section
- filament
- bundle
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a preparation method of a variable cross-section filament bundle, which specifically comprises the following steps: firstly, the single filaments are subjected to doubling, cutting, carding, sizing and drying to form continuous filament bundles, and the filament bundles are placed between vertically arranged rubber roller subgroups for processing, so that the filament bundles are conveyed under the traction of a traction device. And secondly, cutting the filament bundle into a set variable cross-section filament bundle by a hob cutter in the conveying process, and sizing and drying the variable cross-section filament bundle to obtain a finished product. The preparation method of the variable cross-section filament bundle provides a new raw material preparation method for weaving or weaving, so that the diameter changing operation of the filament bundle is simple, convenient and efficient, the broken filament bundle is avoided in the fabric processing process, the fiber characteristics in the composite material can be favorably exerted, the technical support is provided for the manufacturing of the composite material fan blade and the prefabricated body with the continuous variable cross-section or variable thickness curved surface, and the preparation method has important significance for the integral forming of the clean size of relevant parts of aerospace.
Description
Technical Field
The invention relates to the technical field of composite material preform manufacturing, in particular to a preparation method of a variable cross-section filament bundle.
Background
The variable-thickness or variable-section or curved piece has important application value in the field of aerospace, such as engine blades. Generally, the continuous filament bundle is of uniform cross section, generally consisting of 500-4800 filaments of 1-20 μm diameter, and the filaments are bonded together by a sizing agent. In engineering, the purpose of thickening the tow is achieved by a method of locally adding a tow (i.e., a yarn adding method) so as to meet the technical requirements of variable cross-section or variable thickness parts. The processing method has the advantages that the number of broken ends of the tows is large, the use performance of the composite window is directly influenced, the number of manual participation is large, the labor intensity is high, the efficiency is low, and the product consistency is poor.
With the wide and deep application of composite materials, continuous tows or continuous yarns with variable cross sections or variable thicknesses are urgently needed so as to be directly machined and processed, meanwhile, the continuity of the tows is kept, namely, no yarn breakage exists, the reinforcing advantage of the continuous fiber tows is furthest exerted, and the comprehensive performance of the composite materials is improved, especially in the fields of core components such as engine blades, spray pipes, end heads and the like.
Disclosure of Invention
The invention aims to provide a preparation method of a variable cross-section filament bundle, which aims to solve the problems in the prior art, ensure that yarns are not broken, reduce the labor intensity and improve the consistency and the working efficiency of products.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a preparation method of a variable cross-section filament bundle, which comprises the following steps:
step one, carrying out doubling, cutting, carding, sizing and drying on single filaments to form continuous filament bundles, and placing the filament bundles between vertically arranged rubber roller subgroups to convey the filament bundles under the traction of a traction device;
and step two, cutting the filament bundle into a set variable cross-section filament bundle by a hob cutter in the conveying process, and sizing and drying the variable cross-section filament bundle to obtain a finished product.
Preferably, two adjacent rubber roller subgroups constitute a processing unit, the hob, the sizing and the drying treatment equipment are all arranged in the processing unit, and the length of the processing unit is 100-50000 mm.
Preferably, the filament bundle is a carbon fiber bundle or a glass fiber bundle, and the cross-sectional area is 0.05-500 mm2。
Preferably, in the second step, after the filament bundle is cut by the hob cutter, a carding device combs and cleans the monofilaments in the cut part.
Preferably, the hob cutter is arranged on a processing center, and the processing center can control the hob cutter to cut the filament bundle with a variable cross section according to a set track.
Preferably, the variable cross-section tows are continuous single variable cross-section unit circulating tows or continuous multiple variable cross-section unit circulating tows.
Compared with the prior art, the invention has the following technical effects:
the preparation method of the variable cross-section filament bundle provided by the invention provides a new raw material preparation method for weaving or weaving, so that the diameter changing operation of the filament bundle is simple, convenient and efficient, the broken filament bundle is avoided in the fabric processing process, the performance of fiber characteristics in a composite material is facilitated, technical support is provided for the manufacture of a composite material fan blade preform and a continuous variable cross-section or variable thickness curved surface preform, and the preparation method has important significance for the integral forming of the net size of aerospace related parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a process for producing a bundle of variable cross-section filaments according to the present invention;
wherein: 1-large diameter section and 2-small diameter section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a preparation method of a variable cross-section filament bundle, which aims to solve the problems in the prior art, ensure that yarns are not broken, reduce the labor intensity and improve the product consistency and the working efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1: the embodiment provides a preparation method of a variable cross-section filament bundle, which specifically comprises the following steps:
step one, carrying out doubling, cutting, carding, sizing and drying on single filaments to form continuous filament bundles, and placing the filament bundles between vertically arranged rubber roller subgroups to convey the filament bundles under the traction of a traction device; the thicker part in the middle of the filament bundle is held by two rubber rollers which are opposite up and down for processing.
And step two, cutting the filament bundle into a set variable cross-section filament bundle by a hob cutter in the conveying process, and sizing and drying the variable cross-section filament bundle to obtain a finished product. After the filament bundle is cut by the hobbing cutter, the carding device combs and cleans the monofilaments at the cut part, and the carding device consists of 1-3 groups of reeds. The hobbing cutter is arranged on a processing center, the processing center can control the hobbing cutter to cut the variable cross section of the filament bundle according to a set track, the diameter changing operation of the filament bundle is simple and convenient, designability is achieved, and diversity of the filament bundle variable cross section unit is improved.
Two adjacent rubber roller subgroups constitute a processing unit, and hobbing cutter, starching and stoving treatment equipment all set up in the processing unit, and the length of processing unit is 100-. The filament bundle is carbon fiber bundle or glass fiber bundle and has a cross-sectional area of 0.05-500 mm2. BecomeThe section tows are continuous single variable section unit circulating tows or continuous multiple variable section unit circulating tows. As shown in fig. 1, the variable cross-section tow forms a unit endless tow of a large diameter section 1 and a small diameter section 2.
In this embodiment, the thicker part of the filament bundle is held by the rubber roller group, and the continuously moving part of the filament bundle is cut at intervals by a hob cutter on the processing center (a filament reducing processing method), so that the broken monofilaments are separated, and the variable cross-section of the filament bundle is realized. The variable cross-section filament bundle can be used for weaving, knitting or knitting to form a variable thickness fabric, a variable cross-section tubular fabric or a curved fabric, and the fiber characteristics in the composite material can be favorably exerted because the short filament bundle which is not attached later is not used in the fabric processing process.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A preparation method of a variable cross-section filament bundle is characterized by comprising the following steps: the method specifically comprises the following steps:
step one, carrying out doubling, cutting, carding, sizing and drying on single filaments to form continuous filament bundles, and placing the filament bundles between vertically arranged rubber roller subgroups to convey the filament bundles under the traction of a traction device;
and step two, cutting the filament bundle into a set variable cross-section filament bundle by a hob cutter in the conveying process, and sizing and drying the variable cross-section filament bundle to obtain a finished product.
2. The method of producing a variable cross-section filament bundle according to claim 1, wherein: two adjacent rubber roller subgroups constitute a processing unit, hobbing cutter, starching and stoving treatment equipment all set up in the processing unit, the length of processing unit is 100-.
3. The method of producing a variable cross-section filament bundle according to claim 1, wherein: the filament bundle is a carbon fiber bundle or a glass fiber bundle, and the cross-sectional area of the filament bundle is 0.05-500 mm2。
4. The method of producing a variable cross-section filament bundle according to claim 1, wherein: and in the second step, after the filament bundle is cut by the hob cutter, a carding device combs and cleans the monofilaments at the cut part.
5. The method of producing a variable cross-section filament bundle according to claim 1, wherein: the hobbing cutter is arranged on a processing center, and the processing center can control the hobbing cutter to cut the variable cross section of the filament bundle according to a set track.
6. The method of producing a variable cross-section filament bundle according to claim 1, wherein: the variable cross-section filament bundle is a continuous single variable cross-section unit circulating filament bundle or a continuous multiple variable cross-section unit circulating filament bundle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010977851.7A CN112095197B (en) | 2020-09-17 | 2020-09-17 | Preparation method of variable cross-section filament bundle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010977851.7A CN112095197B (en) | 2020-09-17 | 2020-09-17 | Preparation method of variable cross-section filament bundle |
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| CN112095197A true CN112095197A (en) | 2020-12-18 |
| CN112095197B CN112095197B (en) | 2021-09-10 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069565A (en) * | 1974-11-28 | 1978-01-24 | Toray Industries, Inc. | Process and apparatus for producing textured multifilament yarn |
| EP0129366A2 (en) * | 1983-06-06 | 1984-12-27 | Sebastian Aftalion | Shaped fibres, their production and their use |
| JPH0380894B2 (en) * | 1983-08-12 | 1991-12-26 | Mitsubishi Rayon Co | |
| JPH10226936A (en) * | 1996-09-30 | 1998-08-25 | Zinser Textilmas Gmbh | Formation of part of thick yarn in filament yarn and apparatus therefor |
| JPH111837A (en) * | 1997-06-11 | 1999-01-06 | Teijin Ltd | Interlaced cohesive bulky yarn |
| US5996328A (en) * | 1997-10-22 | 1999-12-07 | Basf Coporation | Methods and systems for forming multi-filament yarns having improved position-to-position consistency |
| JP2000336534A (en) * | 1999-05-28 | 2000-12-05 | Toray Ind Inc | Composite false twist yarn and its production |
| JP2001140125A (en) * | 1999-11-08 | 2001-05-22 | Toray Ind Inc | Polyamide-based multifilament yarn, method for producing the same and woven fabric |
| CN210506659U (en) * | 2019-06-12 | 2020-05-12 | 浙江三星特种纺织股份有限公司 | Diameter variation and color ratio variation controllable coated wire and production equipment thereof |
| CN211394775U (en) * | 2019-11-25 | 2020-09-01 | 杭州崛鑫纺织有限公司 | Bamboo joint yarn with length and reducing structure |
-
2020
- 2020-09-17 CN CN202010977851.7A patent/CN112095197B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069565A (en) * | 1974-11-28 | 1978-01-24 | Toray Industries, Inc. | Process and apparatus for producing textured multifilament yarn |
| EP0129366A2 (en) * | 1983-06-06 | 1984-12-27 | Sebastian Aftalion | Shaped fibres, their production and their use |
| JPH0380894B2 (en) * | 1983-08-12 | 1991-12-26 | Mitsubishi Rayon Co | |
| JPH10226936A (en) * | 1996-09-30 | 1998-08-25 | Zinser Textilmas Gmbh | Formation of part of thick yarn in filament yarn and apparatus therefor |
| JPH111837A (en) * | 1997-06-11 | 1999-01-06 | Teijin Ltd | Interlaced cohesive bulky yarn |
| US5996328A (en) * | 1997-10-22 | 1999-12-07 | Basf Coporation | Methods and systems for forming multi-filament yarns having improved position-to-position consistency |
| JP2000336534A (en) * | 1999-05-28 | 2000-12-05 | Toray Ind Inc | Composite false twist yarn and its production |
| JP2001140125A (en) * | 1999-11-08 | 2001-05-22 | Toray Ind Inc | Polyamide-based multifilament yarn, method for producing the same and woven fabric |
| CN210506659U (en) * | 2019-06-12 | 2020-05-12 | 浙江三星特种纺织股份有限公司 | Diameter variation and color ratio variation controllable coated wire and production equipment thereof |
| CN211394775U (en) * | 2019-11-25 | 2020-09-01 | 杭州崛鑫纺织有限公司 | Bamboo joint yarn with length and reducing structure |
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| CN112095197B (en) | 2021-09-10 |
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