CN110904554B - Large-tow carbon fiber spreading device - Google Patents
Large-tow carbon fiber spreading device Download PDFInfo
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- CN110904554B CN110904554B CN201911283720.2A CN201911283720A CN110904554B CN 110904554 B CN110904554 B CN 110904554B CN 201911283720 A CN201911283720 A CN 201911283720A CN 110904554 B CN110904554 B CN 110904554B
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/18—Separating or spreading
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Abstract
The invention provides a large-tow carbon fiber spreading device, which comprises: the staggered yarn collecting device comprises at least two yarn dividing units which are arranged in parallel in the same vertical plane and are used for dividing a plurality of strands of large-tow carbon fibers simultaneously; the layered fiber spreading device comprises a plurality of fiber spreading units, each fiber spreading unit corresponds to one yarn dividing unit and is used for spreading the carbon fiber after the yarn dividing of the corresponding yarn dividing unit; the stacking and fiber spreading device comprises a second stacking unit and a stacking and fiber spreading unit, the second stacking unit is used for stacking and mixing the carbon fibers spread by the plurality of fiber spreading units, and the stacking and fiber spreading unit is used for spreading the carbon fibers after stacking and mixing. Compared with the prior art, the large-tow carbon fiber spreading device has the beneficial effects that the thickness of yarn sheets of the large-tow carbon fiber after spreading the fiber is uniform in a mode of carrying out staggered yarn collection, layered fiber spreading, merging and fiber spreading.
Description
Technical Field
The invention relates to the technical field of carbon fiber forming, in particular to a large-tow carbon fiber spreading device.
Background
Carbon fibers are inorganic polymer fibers containing more than 90% of carbon, and the structure of carbon fibers can be generally regarded as a two-dimensional ordered crystal and pore composition, wherein the content, size and distribution of pores have a large influence on the properties of carbon fibers. The carbon fiber material is divided into the following components according to the specification: 1K carbon fiber cloth, 3K carbon fiber cloth, 6K carbon fiber cloth, 12K carbon fiber cloth, 24K and above large-tow carbon fiber cloth. 1K represents that a bundle of carbon fiber contains 1000 precursor, along with the development of science and technology, the developed K number is larger and larger, and the division of large and small tows can be continuously adjusted.
The carbon fiber composite material is used in a plurality of fields with excellent performance, the requirement of small-tow carbon fibers on process control is strict, the equipment manufacturing cost is high, and although the performance of the carbon fiber composite material is superior to that of large-tow carbon fibers, the carbon fiber composite material is not applied in a large scale due to the problems of cost and mass production efficiency. Therefore, the application of the low-cost large-tow carbon fiber is important content for developing the technical research of the low-cost composite material. At present, carbon fibers with the carbon fiber number of more than 48K are generally called large-tow carbon fibers and are mainly applied to the industrial fields such as automobiles, rail transit, wind power blades, energy buildings, sports goods and the like, and the large-tow carbon fibers become the mainstream direction of the development of the future carbon fibers. Because the application of the small-tow carbon fiber is earlier, the technology is relatively mature, so the processing of the large-tow carbon fiber mostly adopts the processing equipment of the small tow at present, however, due to the performance difference of the large tow and the small tow, when the large tow is applied to the processing equipment of the small-tow carbon fiber, the thickness of the yarn sheet after fiber spreading is difficult to be uniform.
Referring to fig. 4, the yarn distribution state before fiber spreading of the small tow carbon fiber processing equipment is changed to the yarn sheet state after fiber spreading, and it can be seen from the figure that when the large tow carbon fiber is spread by the small tow carbon fiber spreading device, the upper surface is wavy, that is, the thickness of the yarn sheet after fiber spreading is not uniform.
In view of the above defects, the designer actively makes research and innovation based on practical experience and professional knowledge that such product engineering is applied for many years, and combines with the application of scholars, so as to create a large tow carbon fiber spreading device, which is more practical.
Disclosure of Invention
In view of this, the invention provides a large-tow carbon fiber spreading device, and aims to solve the technical problems that in the prior art, when large-tow carbon fibers are spread, the effect of accumulating and spreading the fibers is not good, and the thickness of a yarn sheet after spreading the fibers is not uniform.
The invention provides a large-tow carbon fiber spreading device, which comprises: a staggered yarn collecting device, a layered fiber unfolding device and a superposed fiber unfolding device;
the staggered yarn collecting device comprises at least two yarn distributing units which are arranged in parallel in the same vertical plane and used for distributing multi-strand large-tow carbon fiber yarns at the same time;
the layered fiber spreading device comprises a plurality of fiber spreading units, each fiber spreading unit corresponds to one yarn dividing unit and is used for spreading the carbon fiber after the yarn dividing of the corresponding yarn dividing unit;
the stacking and fiber spreading device comprises a second stacking unit and a stacking and fiber spreading unit, the second stacking unit is used for stacking and mixing a plurality of carbon fibers after the fiber spreading of the fiber spreading unit, and the stacking and fiber spreading unit is used for spreading the mixed carbon fibers.
Further, every the yarn dividing unit all includes two parallel arrangement's yarn dividing pole, the equidistance is provided with a plurality of yarn dividing grooves on the yarn dividing pole.
Furthermore, the yarn dividing unit also comprises a fixing frame and a fixing clamp;
grooves for bearing the yarn dividing rods are respectively arranged on one sides of the fixing frames opposite to each other;
the fixing clamp is used for fixing the two yarn distributing rods on the fixing frame at the same time.
Further, the dislocation yarn collecting device also comprises a first transition roller and a first superposition unit;
each first transition roller corresponds to each yarn dividing unit and is used for performing cross transition on two strands of large-tow carbon fibers passing through the same yarn dividing unit;
each first superposing unit corresponds to each first transition roller and is used for superposing and polymerizing two strands of large-tow carbon fibers passing through the same first transition roller.
Furthermore, each fiber spreading unit comprises a first fixed fiber spreading roller, a first sliding fiber spreading roller and a first lifting device for driving the first sliding fiber spreading roller to slide;
the first fixed fiber spreading roller and the first sliding fiber spreading roller are distributed at intervals;
the first lifting device adjusts wrap angles and tension when the carbon fibers are spread by lifting the first sliding fiber spreading roller.
Furthermore, the fiber spreading unit further comprises tension detection units, and each tension detection unit corresponds to one first fiber spreading unit and is used for detecting the tension of each first fiber spreading unit during fiber spreading.
Furthermore, the overlapping fiber spreading unit comprises a second fixed fiber spreading roller, a second sliding fiber spreading roller and a second lifting device for driving the second sliding fiber spreading roller to slide, and the second fixed fiber spreading roller and the second sliding fiber spreading roller are distributed at intervals.
Compared with the prior art, the large-tow carbon fiber spreading device has the beneficial effects that the thickness of yarn sheets of the large-tow carbon fiber after spreading the fiber is uniform in a mode of carrying out staggered yarn collection, layered fiber spreading, merging and fiber spreading.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a front view of a large-tow carbon fiber spreading device provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a yarn dividing unit provided by an embodiment of the invention;
FIG. 3 is a side view of a large tow carbon fiber spreading device provided by an embodiment of the invention;
FIG. 4 is a schematic diagram of a prior art method for spreading large-tow carbon fibers by using a small-tow spreading device;
FIG. 5 is a schematic diagram of a fiber spreading device according to an embodiment of the present invention;
reference numerals: 1. a staggered yarn collecting device; 11. a yarn dividing unit; 111. a yarn separating rod; 1111. a yarn separating groove; 112. a fixed mount; 1121. a groove; 113. a fixing clip; 12. a first transition roll; 13. a first superimposing unit; 2. a layered fiber spreading device; 21. a fiber spreading unit; 211. a first fixed fiber spreading roller; 212. a first sliding fiber spreading roller; 213. a first lifting device; 214. a tension detection unit; 3. stacking fiber spreading devices; 31. a second superimposing unit; 32. overlapping fiber spreading units; 321. a second fixed fiber spreading roller; 322. a second sliding fiber spreading roller; 323. and a second lifting device.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, it can be seen that, the large tow carbon fiber spreading device according to the embodiment of the present invention includes: the device comprises a dislocation yarn collecting device 1, a layered fiber spreading device 2 and a superimposed fiber spreading device 3, wherein the dislocation yarn collecting device 1 comprises yarn dividing units 11, at least two yarn dividing units 11 are arranged in parallel in the same vertical plane and used for dividing a plurality of strands of large-tow carbon fibers simultaneously; the layered fiber spreading device 2 comprises a plurality of fiber spreading units 21, each fiber spreading unit 21 corresponds to one corresponding yarn dividing unit 11 and is used for spreading the carbon fiber after the yarn is divided by the corresponding yarn dividing unit 11; the fiber stacking and spreading device 3 includes a second stacking unit 31 and a fiber stacking and spreading unit 32, the second stacking unit 31 is used for stacking and mixing the carbon fibers spread by the plurality of fiber spreading units 21, and the fiber stacking and spreading unit 32 is used for spreading the stacked and mixed carbon fibers. Compared with the prior art, the large-tow carbon fiber spreading device provided by the embodiment firstly carries out dislocation yarn collection on large-tow carbon fibers, then carries out layered fiber spreading and finally carries out superposition fiber spreading, and the thickness of fiber yarn pieces after the fiber spreading is uniform.
In this embodiment, the staggered yarn collecting device 1 further includes first transition rollers 12 and first superimposing units 13, each first transition roller 12 corresponds to one yarn dividing unit 11, and is used for performing cross transition on two strands of large-tow carbon fibers passing through the same yarn dividing unit 11; each first superimposing unit 13 corresponds to each first transition roller 12 and is used for superimposing and polymerizing two strands of large-tow carbon fibers passing through the same first transition roller 12 to form one strand.
During specific implementation, each yarn dividing unit 11 comprises two yarn dividing rods 111 arranged in parallel, a plurality of yarn dividing grooves 1111 are equidistantly arranged on each yarn dividing rod 111, carbon fibers are more uniformly dispersed when passing through the yarn dividing grooves 1111, each yarn dividing unit 11 further comprises a fixing frame 112 and a fixing clamp 113, grooves 1121 for bearing the yarn dividing rods 111 are respectively formed in one side, opposite to the fixing frame 112, of each fixing frame 113, each fixing clamp 113 is used for fixing the two yarn dividing rods 111 to the corresponding fixing frame 112 at the same time, and each fixing clamp 113 is similar to a hoop.
In this embodiment, each fiber spreading unit 21 includes a first fixed fiber spreading roller 211, a first sliding fiber spreading roller 212, and a first lifting device 213 for driving the first sliding fiber spreading roller 212 to slide, the first fixed fiber spreading roller 211 and the first sliding fiber spreading roller 212 are distributed at intervals, the first lifting device 213 adjusts wrap angle and tension when the carbon fiber is spread by lifting the first sliding fiber spreading roller 212, in specific implementation, the first sliding fiber spreading roller 212 is fixedly connected to the sliding block, and the first lifting device 213 drives the sliding block to slide up and down to drive the first sliding fiber spreading roller 212 to lift.
In this embodiment, the stacked fiber spreading unit 32 includes a second fiber fixing and spreading roller 321, a second sliding fiber spreading roller 322, and a second lifting device 323 for driving the second sliding fiber spreading roller 322 to slide, where the second fiber fixing and spreading roller 321 and the second sliding fiber spreading roller 322 are distributed at intervals.
In this embodiment, when the stranded carbon fiber enters the superposed fiber spreading device 3, it is necessary to ensure that the tension is consistent, therefore, the fiber spreading unit 21 further includes a tension detecting unit 214, each tension detecting unit 214 corresponds to one first fiber spreading unit 21, and is used for detecting the tension when each first fiber spreading unit 21 spreads the fibers, and specifically, the tension detecting unit can detect the tension through a tension sensor, and controls the tension when the fiber spreading through the first lifting device 213 controlled by the PLC, so that the stranded carbon fiber tension entering the superposed fiber spreading device 3 is consistent.
The specific working process of the large-tow carbon fiber spreading device provided by the embodiment is as follows:
the yarn dividing unit 11, the first transition roller 12 and the first superposing unit 13 are respectively provided with two, during operation, two of four large-tow carbon fibers are in a group and respectively pass through one yarn dividing unit 11, specifically, one of the large-tow carbon fibers passes through the upper side yarn dividing rod 111, the other one passes through the lower side yarn dividing rod 111, the two large-tow carbon fibers cross and pass through the first transition roller 12, namely, the large-tow carbon fibers at the lower side pass through the first transition roller 12, the large-tow carbon fibers at the upper side pass through the lower side of the first transition roller 12 to form cross, so that the dispersion is more uniform, the two large-tow carbon fibers passing through the same first transition roller 12 are superposed into a group in the first superposing unit 13, at the moment, the four large-tow carbon fibers are superposed to form, the carbon fibers are respectively spread by the two fiber spreading units 21 and then are superposed into one tow by the second superposing unit 31, and then the fiber is expanded through the superposed fiber expanding unit 32.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A large-tow carbon fiber spreading device is characterized by comprising: a staggered yarn collecting device (1), a layered fiber unfolding device (2) and a superposed fiber unfolding device (3);
the staggered yarn collecting device (1) comprises at least two yarn dividing units (11), wherein the yarn dividing units (11) are arranged in parallel in the same vertical plane and are used for dividing a plurality of strands of large-tow carbon fibers simultaneously;
the layered fiber spreading device (2) comprises a plurality of fiber spreading units (21), each fiber spreading unit (21) corresponds to one yarn dividing unit (11) and is used for spreading the carbon fiber after the yarn dividing of the corresponding yarn dividing unit (11);
the stacking and fiber spreading device (3) comprises a second stacking unit (31) and a stacking and fiber spreading unit (32), wherein the second stacking unit (31) is used for stacking and mixing the carbon fibers spread by the plurality of fiber spreading units (21), and the stacking and fiber spreading unit (32) is used for spreading the carbon fibers after stacking and mixing;
the dislocation yarn collecting device (1) further comprises a first transition roller (12) and a first superposition unit (13);
each first transition roller (12) corresponds to each yarn dividing unit (11) and is used for performing cross transition on two large-tow carbon fibers passing through the same yarn dividing unit (11);
each first superposing unit (13) corresponds to each first transition roller (12) and is used for superposing and polymerizing two strands of large-tow carbon fibers passing through the same first transition roller (12);
each fiber spreading unit (21) comprises a first fixed fiber spreading roller (211), a first sliding fiber spreading roller (212) and a first lifting device (213) for driving the first sliding fiber spreading roller (212) to slide;
the first fixed fiber spreading roller (211) and the first sliding fiber spreading roller (212) are distributed at intervals;
the first lifting device (213) adjusts wrap angle and tension when the carbon fiber is spread by lifting the first sliding fiber spreading roller (212);
when a plurality of strands of carbon fibers enter the superposed fiber spreading device (3), the fiber spreading unit (21) further comprises tension detecting units (214), each tension detecting unit (214) corresponds to one fiber spreading unit (21) and is used for detecting the tension of each fiber spreading unit (21) during fiber spreading, and the first lifting device (213) is controlled by a PLC (programmable logic controller) to control the tension during fiber spreading so that the tensions of the plurality of strands of carbon fibers entering the superposed fiber spreading device (3) are consistent.
2. The large-tow carbon fiber spreading device according to claim 1, wherein each yarn dividing unit (11) comprises two yarn dividing rods (111) arranged in parallel, and the yarn dividing rods (111) are provided with a plurality of yarn dividing grooves (1111) at equal intervals.
3. The large-tow carbon fiber spreading device according to claim 2, wherein the yarn dividing unit (11) further comprises a fixing frame (112), a fixing clip (113);
grooves (1121) used for bearing the yarn dividing rods (111) are respectively formed in one sides, opposite to the fixed frame (112);
the fixing clamp (113) is used for fixing the two yarn distributing rods (111) on the fixing frame (112) at the same time.
4. The large-tow carbon fiber spreading device according to claim 1, wherein the overlapping spreading unit (32) comprises a second fixed spreading roller (321), a second sliding spreading roller (322), and a second lifting device (323) for driving the second sliding spreading roller (322) to slide, and the second fixed spreading roller (321) and the second sliding spreading roller (322) are distributed at intervals.
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| CN201911283720.2A CN110904554B (en) | 2019-12-13 | 2019-12-13 | Large-tow carbon fiber spreading device |
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| CN111430529A (en) * | 2020-04-20 | 2020-07-17 | 绍兴中松智能科技有限公司 | Production robot for luminescent fibers and production method for conductive fibers |
| CN114057012A (en) * | 2021-12-13 | 2022-02-18 | 江苏恒神股份有限公司 | Carbon fiber yarn splitting device and yarn splitting method |
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| CN104870103A (en) * | 2012-12-20 | 2015-08-26 | 帝人芳纶有限公司 | Vibrational spreader bar for spreading unidirectional yarns |
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| CN107881617A (en) * | 2017-12-13 | 2018-04-06 | 常州市新创智能科技有限公司 | A kind of yarn opens up fine cornerite automatic regulating apparatus and its control method |
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