CN114314196B - Online wire bonding production process and device for carbon fiber manufacturing - Google Patents
Online wire bonding production process and device for carbon fiber manufacturing Download PDFInfo
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- CN114314196B CN114314196B CN202111590837.2A CN202111590837A CN114314196B CN 114314196 B CN114314196 B CN 114314196B CN 202111590837 A CN202111590837 A CN 202111590837A CN 114314196 B CN114314196 B CN 114314196B
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Abstract
The invention relates to an on-line wire bonding production process and device for carbon fiber manufacture, wherein the on-line wire bonding production process comprises the following steps: the method comprises the steps of (1) separating a to-be-connected precursor fiber bundle A by a gap to separate the to-be-connected precursor fiber bundle A from a precursor fiber bundle B running beside the precursor fiber bundle A, (2) twisting a knot made by the carbon fiber bundle C into the precursor fiber bundle B by using a carbon fiber bundle C wound on a yarn unwinding device, (3) naturally unwinding the carbon fiber bundle C by using the yarn unwinding device, (4) butting the carbon fiber bundle C with the to-be-connected precursor fiber bundle A to enable the carbon fiber bundle C and the precursor fiber bundle A to form an integral fiber bundle D, and (5) conducting yarn guiding by using a yarn guiding device until the integral fiber bundle D is totally straightened, removing the yarn guiding device, and enabling the integral fiber bundle D to normally run to achieve the effect of stable running after yarn breakage and yarn splicing.
Description
Technical Field
The invention relates to the field of carbon fiber manufacturing, in particular to an online wire bonding production process and device for carbon fiber manufacturing.
Background
Carbon fiber (CarbonFibre) is a fibrous carbon material, and its chemical composition contains carbon element more than 90% of total mass. The carbon fiber and the composite material thereof have a series of excellent performances of high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electric conduction, heat transfer, small thermal expansion coefficient and the like, and can be used as a structural material for bearing load and a functional material for playing a role. Accordingly, carbon fibers and composite materials thereof have been rapidly developed in recent years.
Through years of development, the industrialization of the process for preparing the carbon fiber by using three raw materials, namely viscose (cellulose) base fiber, asphalt fiber and Polyacrylonitrile (PAN) fiber is realized at present, key technologies such as rapid spinning and the like fall behind in the process of preparing the carbon fiber, so that the product performance is unstable, and the problem of uncontrollable yarn breakage is caused, various problems are caused to the processes such as homogenizing pre-oxidation, rapid oxidation carbonization and the like of the carbon fiber, and particularly, the irrecoverable loss such as fire and even explosion and the like can be caused when the critical pre-oxidation process breaks the yarn.
In the current carbon fiber production, when the oxidation furnace breaks, the carbon fiber tows are manually removed, and the yarn playback device is pulled, so that the operation of reducing the quantity of the carbon fiber tows in production is realized, the yield is reduced, when the yarns are spliced again, a yarn splicing gun is used, the precursor is damaged, the probability of broken yarns in oxidation of the precursor becomes wool is increased, and great hidden danger is brought to stable production.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an online wire bonding production process and device for manufacturing carbon fibers, so that the wire breakage treatment caused by oxidization is simplified.
In order to achieve the above purpose, the following technical scheme is provided:
an online wire bonding production process and device for carbon fiber manufacture, wherein the online wire bonding production process comprises the following steps of:
(1) Separating the to-be-connected precursor tows A by a gap (5-10 cm) after the post placing personnel and the oxidation post personnel go to the humidifying station, so that the to-be-connected precursor tows A are separated from the precursor tows B running beside the precursor tows A, and the running is prevented from being affected by the mutual intersection;
(2) One carbon fiber tow C wound on a yarn unwinding device is used for knotting one end of the carbon fiber tow C, the knots made by the carbon fiber tow C are twisted into a precursor tow B by using a yarn twisting method, and the carbon fiber tow C is carried into an oxidation furnace to operate by using the operating precursor tow B;
(3) Naturally unwinding the carbon fiber tows C by using a yarn unwinding device;
(4) After the carbon fiber tows C enter an oxidation furnace, reserving 2-3m for the carbon fiber tows C after the twisting position of the carbon fiber tows C and the precursor tows B moves and passes through a guide roller, and butting the carbon fiber tows C with the precursor tows A to be connected to form an integral tows D with the precursor tows A;
(5) After the wire connection is finished, a wire guiding device is used for guiding wires, a wire guiding post worker holds the wire guiding device by hand, the whole wire bundle D passes through a wire guiding pulley of the wire guiding device, the whole wire bundle D formed by the carbon fiber wire bundle C and the precursor wire bundle A is straightened, the whole wire bundle D is gradually pulled into an oxidation furnace to run along with the driving of the movement of a guide roller until the whole wire bundle D is totally straightened, the wire guiding device is removed, the whole wire bundle D runs normally, and the effect of stable running after wire breakage and wire connection is achieved.
Preferably, the on-line wire connecting production device comprises a wire unwinding device and a wire guiding device, the wire unwinding device comprises a wire unwinding frame, a wire unwinding shaft and a wire unwinding cylinder, the wire unwinding shaft penetrates through the wire unwinding cylinder and rotates relative to the wire unwinding shaft, the wire unwinding cylinder is located in the middle of the wire unwinding shaft, two ends of the wire unwinding shaft penetrate through the upper parts of two sides of the wire unwinding frame respectively and are fixedly connected with the wire unwinding shaft, the wire guiding device comprises a wire guiding pulley and a wire guiding rod, and the wire guiding rod penetrates through the wire guiding pulley and can rotate relative to the wire guiding pulley.
Preferably, a carbon fiber tow C is wound on a yarn unwinding cylinder of the yarn unwinding device.
The beneficial effects of the invention are as follows:
1. the process can ensure the continuity of production, simplify the wire breakage treatment caused by oxidation, is also suitable for other posts in carbon fiber production, and has high wire connection success rate.
2. The device used by the invention is simple, the operation is convenient, the quick wire connection can be realized, the wire connection quality is reliable, the wire connection is not easy to break, and the wire connection work efficiency is high.
Drawings
FIG. 1 is a schematic diagram of a yarn feeding device according to the present invention;
FIG. 2 is a schematic view of a guide wire device according to the present invention;
FIG. 3 is a schematic view of an embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of a guidewire of the present invention;
the reference numerals shown in the figures are: 1-wire-releasing frame, 2-wire-releasing shaft, 3-wire-releasing cylinder, 4-carbon fiber tow C, 5-wire-guiding pulley, 6-wire-guiding rod, 7-integral tow D and 8-guide roller.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
As shown in fig. 1 to 4, an on-line wire bonding production process and device for manufacturing carbon fibers, the on-line wire bonding production process comprises the following steps:
(1) Separating the to-be-connected precursor tows A by a gap (5-10 cm) after the post placing personnel and the oxidation post personnel go to the humidifying station, so that the to-be-connected precursor tows A are separated from the precursor tows B running beside the precursor tows A, and the running is prevented from being affected by the mutual intersection;
(2) A 25K carbon fiber tow C4 wound on a yarn releasing device is used for knotting one end of the carbon fiber tow C4, a yarn twisting method is used for twisting the knots of the carbon fiber tow C4 into a precursor tow B, and the carbon fiber tow C4 is carried into an oxidation furnace to operate by using the operating precursor tow B;
(3) Naturally unwinding the 25K carbon fiber bundles C4 by using a filament unwinding device;
(4) After the carbon fiber tows C4 enter an oxidation furnace, reserving 2-3m for the carbon fiber tows C4 after the twisting position of the carbon fiber tows C4 and the precursor tows B moves to pass through a guide roller 8, and butting the carbon fiber tows C4 with the precursor tows A to be connected to form an integral tows D7 by the carbon fiber tows C4 and the precursor tows A;
(5) After the wire connection is finished, a wire guiding device is used for guiding wires, a wire guiding post worker holds the wire guiding device by hand, the whole wire bundle D7 passes through a wire guiding pulley 5 of the wire guiding device, the whole wire bundle D7 formed by the carbon fiber wire bundle C4 and the precursor wire bundle A is straightened, the whole wire bundle D7 is gradually pulled into an oxidation furnace to run along with the driving of the movement of a guide roller 8 until the whole wire bundle D7 is totally straightened, the wire guiding device is removed, the whole wire bundle D7 runs normally, and the effect of stable running after the wire breakage wire connection is achieved.
The on-line wire connecting production device comprises a wire unwinding device and a wire guiding device, the wire unwinding device comprises a wire unwinding frame 1, a wire unwinding shaft 2 and a wire unwinding cylinder 3, the wire unwinding shaft 2 penetrates through the wire unwinding cylinder 3 and rotates relative to the wire unwinding shaft, the wire unwinding cylinder 3 is located in the middle of the wire unwinding shaft 2, carbon fiber bundles C4 are wound on the wire unwinding cylinder 3, two ends of the wire unwinding shaft 2 penetrate through the upper parts of two sides of the wire unwinding frame 1 respectively and are fixedly connected with the wire unwinding shaft, the wire guiding device comprises a wire guiding pulley 5 and a wire guiding rod 6, and the wire guiding rod 6 penetrates through the wire guiding pulley 5 and can rotate relative to the wire guiding pulley 5.
Examples
As shown in fig. 1-4, the strand a to be connected is separated from the strand B running beside the strand a by a gap (5-10 cm) after the strand placing person and the oxidation person go to the humidifying station, so that the strand a to be connected is separated from the strand B running beside the strand a, and the running is prevented from being affected by the mutual intersection; a 25K carbon fiber tow C4 wound on a yarn releasing device is used for knotting one end of the carbon fiber tow C4, a yarn twisting method is used for twisting the knots of the carbon fiber tow C4 into a precursor tow B, and the carbon fiber tow C4 is carried into an oxidation furnace to operate by using the operating precursor tow B; naturally unwinding the 25K carbon fiber bundles C4 by using a filament unwinding device; the carbon fiber tows C4 enter an oxidation furnace, after the twisting position of the carbon fiber tows C4 and the precursor tows B moves to pass through one guide roller 8 after 5 minutes, reserving 3m for the carbon fiber tows C4, and butting the carbon fiber tows C4 with the precursor tows A to be connected to form an integral tows D7 by the carbon fiber tows C4 and the precursor tows A; after the wire connection is finished, a wire guiding device is used for guiding wires, a wire guiding post worker holds the wire guiding device by hand, the whole wire bundle D7 passes through a wire guiding pulley 5 of the wire guiding device, the whole wire bundle D7 formed by the carbon fiber wire bundle C4 and the precursor wire bundle A is straightened, the whole wire bundle D7 is gradually pulled into an oxidation furnace to run along with the driving of the movement of a guide roller 8 until the whole wire bundle D7 is totally straightened, the wire guiding device is removed, the whole wire bundle D7 runs normally, and the effect of stable running after the wire breakage wire connection is achieved.
Claims (4)
1. An online wire bonding production process for manufacturing carbon fibers is characterized by comprising the following steps of:
(1) Separating the to-be-connected precursor tows A from the to-be-connected precursor tows B in running beside the precursor tows A by a gap after the post placing personnel and the oxidation post personnel go to the humidifying station, so that the to-be-connected precursor tows A are separated from the precursor tows B in running beside the precursor tows A, and the running is prevented from being affected by the mutual intersection;
(2) One carbon fiber tow C wound on a yarn unwinding device is used for knotting one end of the carbon fiber tow C, the knots made by the carbon fiber tow C are twisted into a precursor tow B by using a yarn twisting method, and the carbon fiber tow C is carried into an oxidation furnace to operate by using the operating precursor tow B;
(3) Naturally unwinding the carbon fiber tows C by using a yarn unwinding device;
(4) After the carbon fiber tows C enter an oxidation furnace, reserving 2-3m for the carbon fiber tows C after the twisting position of the carbon fiber tows C and the precursor tows B moves and passes through a guide roller, and butting the carbon fiber tows C with the precursor tows A to be connected to form an integral tows D with the precursor tows A;
(5) After the wire connection is finished, a wire guiding device is used for guiding wires, a wire guiding post worker holds the wire guiding device by hand, the whole wire bundle D passes through a wire guiding pulley of the wire guiding device, the whole wire bundle D formed by the carbon fiber wire bundle C and the precursor wire bundle A is straightened, the whole wire bundle D is gradually pulled into an oxidation furnace to run along with the driving of the movement of a guide roller until the whole wire bundle D is totally straightened, the wire guiding device is removed, the whole wire bundle D runs normally, and the effect of stable running after wire breakage and wire connection is achieved.
2. The online wire bonding production process for manufacturing the carbon fibers according to claim 1, wherein the online wire bonding production process is produced by an online wire bonding production device, the production device comprises a wire discharging device and a wire guiding device, the wire discharging device comprises a wire discharging frame, a wire discharging shaft and a wire discharging cylinder, the wire discharging shaft penetrates through the wire discharging cylinder and rotates relatively to the wire discharging shaft, the wire discharging cylinder is located in the middle of the wire discharging shaft, two ends of the wire discharging shaft penetrate through the upper parts of two sides of the wire discharging frame respectively and are fixedly connected with the wire discharging shaft, the wire guiding device comprises a wire guiding pulley and a wire guiding rod, and the wire guiding rod penetrates through the wire guiding pulley and can rotate relatively to the wire guiding pulley.
3. The process for producing on-line wire bonds for carbon fiber manufacturing according to claim 1, wherein carbon fiber tows C are wound on a wire unwinding drum of the wire unwinding device.
4. An on-line wire bonding process for carbon fiber production according to claim 1, wherein in the step (1), the strand a to be bonded is separated by a gap of 5 to 10cm.
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| US6485592B1 (en) * | 1997-02-14 | 2002-11-26 | Toray Industries, Inc. | Precursor fiber bundle for manufacture of carbon fiber, manufacturing apparatus and method of manufacturing carbon fiber bundle |
| CN102209806A (en) * | 2008-11-10 | 2011-10-05 | 东丽株式会社 | Fiber bundle with pieced part, process for producing same, and process for producing carbon fiber |
| JP2015120582A (en) * | 2013-12-24 | 2015-07-02 | 東邦テナックス株式会社 | Connection method for fiber yarn, and manufacturing method for carbon fiber |
| CN206015168U (en) * | 2016-08-11 | 2017-03-15 | 浙江精业新兴材料有限公司 | A kind of carbon fiber production line operation device |
| CN107385531A (en) * | 2017-06-21 | 2017-11-24 | 兰州蓝星纤维有限公司 | A kind of processing method of big tow precursor joint |
| CN208201201U (en) * | 2018-05-22 | 2018-12-07 | 浙江精功碳纤维有限公司 | A kind of carbon fiber continuous production wears the device that furnace connects silk |
| CN112794162A (en) * | 2021-01-29 | 2021-05-14 | 广州赛奥碳纤维技术股份有限公司 | Device and method for replacing spindle and connecting raw yarn spindle |
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2021
- 2021-12-23 CN CN202111590837.2A patent/CN114314196B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335089A (en) * | 1979-08-31 | 1982-06-15 | Sumitomo Chemical Co., Ltd. | Process for producing carbon fibers |
| US6485592B1 (en) * | 1997-02-14 | 2002-11-26 | Toray Industries, Inc. | Precursor fiber bundle for manufacture of carbon fiber, manufacturing apparatus and method of manufacturing carbon fiber bundle |
| JP2002302341A (en) * | 2001-04-09 | 2002-10-18 | Mitsubishi Rayon Co Ltd | Ending machine and carbon fiber producing method |
| CN102209806A (en) * | 2008-11-10 | 2011-10-05 | 东丽株式会社 | Fiber bundle with pieced part, process for producing same, and process for producing carbon fiber |
| JP2015120582A (en) * | 2013-12-24 | 2015-07-02 | 東邦テナックス株式会社 | Connection method for fiber yarn, and manufacturing method for carbon fiber |
| CN206015168U (en) * | 2016-08-11 | 2017-03-15 | 浙江精业新兴材料有限公司 | A kind of carbon fiber production line operation device |
| CN107385531A (en) * | 2017-06-21 | 2017-11-24 | 兰州蓝星纤维有限公司 | A kind of processing method of big tow precursor joint |
| CN208201201U (en) * | 2018-05-22 | 2018-12-07 | 浙江精功碳纤维有限公司 | A kind of carbon fiber continuous production wears the device that furnace connects silk |
| CN112794162A (en) * | 2021-01-29 | 2021-05-14 | 广州赛奥碳纤维技术股份有限公司 | Device and method for replacing spindle and connecting raw yarn spindle |
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