CN104562239B - Fiber drawing method - Google Patents
Fiber drawing method Download PDFInfo
- Publication number
- CN104562239B CN104562239B CN201510031208.4A CN201510031208A CN104562239B CN 104562239 B CN104562239 B CN 104562239B CN 201510031208 A CN201510031208 A CN 201510031208A CN 104562239 B CN104562239 B CN 104562239B
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- China
- Prior art keywords
- fiber
- boundling
- gel
- drive roll
- active
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
Abstract
The invention provides a fiber drawing method. The fiber drawing method comprises the steps of preparing gel-spun fibers, bundling and pre-drawing, extracting, drying and hotly drawing, and is characterized in that an initiative fiber feeding procedure is increased before the step of bundling and pre-drawing. With the adoption of the fiber drawing method, the fineness deviation of the fibers can be reduced and the dispersion degree of the fineness of the finished-product fibers is also reduced; meanwhile, waste fibers generated in a drawing procedure are reduced and the cost is saved; the tension of the gel-spun fibers can be conveniently adjusted and keeps constant in a drawing process; meanwhile, the manpower is saved and the labor production efficiency is improved.
Description
Technical field
A kind of a kind of the present invention relates to improved draft process in fiber production process, more particularly to superhigh molecular weight polyethylene
Drafting method in alkene fiber production process, the drafting method can reduce fibre number deviation.
Background technology
In the production process of superhigh molecular weight polyethylene fibers, gel spinning method is typically adopted.When gel fiber carries out drawing-off,
Creel is first gone up typically, is then carried out preliminary draft, extraction again successively, is dried, hot gas spring is finally carried out to obtain fibre strength.For
Improve production efficiency, per the fiber up to three, four rows of batch boundling, should control subtended angle, again constant-tension, and this is just for protecting
The uniformity of card gel fiber increases difficulty.
In existing production drafting process, boundling roller is all driven roll, and gel fiber is due to containing solvent naphtha, being easier to when going out fiber barrel
Adhesion, also easy roll banding.When gel fiber per batch boundling has multiple rows of, the tension force of last row is always maximum, so causes the
At the end of one row's drawing-off, last row is always remaining, up to 100 meters of gel fiber when many, more than to waste, and finished fiber
Fiber number is substantially less than normal compared with first row, increases the dispersion of finished fiber.
Chinese patent CN202107807U discloses a kind of spinning multistage drafting high-frequency inductance hot rollers, and primary structure is by first
Hot-rolling, second pair of hot-rolling, the 3rd pair of setting roller, filar guide, draw-off godet, up- coiler, high speed hot-rolling magneto, sensing are added
Hot device, electromagnetic valve, noncontact rotation thermometric transmitter composition;Spinning enters first pair of hot-rolling by filar guide, hot at first pair
Roller enters second pair of hot-rolling after winding certain number of turns, and silk has certain drawing-off between first pair of hot-rolling and second pair of hot-rolling,
The 3rd pair of setting roller is entered after certain number of turns in second pair of hot-rolling, is entered through the silk of thermal finalization in the 3rd pair of setting roller
Enter draw-off godet, up- coiler coiling and molding is entered by draw-off godet;Three pairs of hot-rollings are all the drafting systems of drive roll, three pairs of hot-rollings
Heating passes through solenoid valve control.The product produced by said apparatus has uniform fiber number, strength height, boiling water shrinkage low
Feature.However, in the patent three pairs of hot-rollings constant airspeed, although ensure that fiber number is uniform, but the tension force of silk be unadjustable, and
And the position of three pairs of hot-rollings maintains static, the regulation to fiber number and tension force is made troubles.
The content of the invention
The present invention is proposed for solution the problems referred to above of the prior art.
It is an object of the invention to provide improved draft process in a kind of fiber production process, to reduce finished fiber fiber number
Deviation and dispersion, it is ensured that the tension force of gel fiber conveniently can adjust, and be consistent in drafting process, reduce and waste.
For achieving the above object, the present invention is employed the following technical solutions:
It is an aspect of the invention to provide a kind of drawing of fiber method, the drawing of fiber include gel fiber preparation,
Boundling preliminary draft, extraction, dry and hot gas spring step, it is characterised in that increase before the boundling preliminary draft step on actively
Wire process.
In a preferred embodiment of said method, in the active, wire process is completed by boundling traction apparatuss, should
Device is made up of reciprocating lever (3), godet (5), active boundling traction roller group (4) and the motor (7) be arrangeding in parallel;Wherein, institute
State active boundling traction roller group (4) to be made up of at least one drive roll, gear drive is passed through by the motor (7).
In another preferred embodiment of said method, active boundling traction roller group (4) are by three parallel actives
Roller group is into the section of three parallel drive rolls forms triangle roll surface, and drive roll a is maintained static, and drive roll b is described
Can adjust up and down on roll surface, drive roll c on the roll surface can up and down, left and right adjusting.
It is highly preferred that the rotating speed of three drive rolls is adjusted by changing pinion ratio;Wherein, the drive roll b
Rotating ratio drive roll a and drive roll c rotating speed it is slow.
In a preferred embodiment of said method, the boundling traction apparatuss can draw several gel fibers simultaneously,
Can connect in the drawing of fiber step several boundling traction apparatuss.
In the above-mentioned methods, it is preferable that the top of reciprocating lever (3) arranges several U-shaped sub-wire teeth at equal intervals, and institute
State reciprocating lever (3) and do reciprocating motion parallel to its axial direction, to prevent gel fiber adhesion.It is highly preferred that the reciprocating lever
(3) reciprocating stroke is 10-15cm.
In the above-mentioned methods, it is preferable that the lower section of godet (5) arranges several equidistant circular rings, the jelly
Collodion silk is passed through from the middle of circular rings.
Draft process of the said method suitable for any one polymer fiber production process, is especially preferably applied to
Superhigh molecular weight polyethylene fibers.
Compared with prior art, had the advantage that using technical scheme:
(1) size deviation of fiber had both been reduced, the dispersion of finished fiber fiber number had been reduced again;
(2) waste silk produced in reducing drafting process, has saved cost;
(3) device structure is simple, easy to operate;
(4) tension force of gel fiber is convenient is adjusted, and guarantees that the tension force of gel fiber is consistent in drafting process;
(5) save artificial, improve labor productivity.
Description of the drawings
Fig. 1 is the top view of boundling traction apparatuss of the present invention;
Fig. 2 is the A views in Fig. 1, i.e., the side view of boundling traction apparatuss of the present invention;
Fig. 3 is the B views in Fig. 1, i.e., the plan view of boundling traction apparatuss of the present invention;
In figure, 1- creels, 2- fiber barrels, 3- reciprocating levers, 4- active boundling traction roller groups, 5- godets, 6- gel fibers,
7- motors.
Specific embodiment
The invention provides a kind of drawing of fiber method for reducing fibre number deviation.
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
Embodiment 1:
1. 200D gel fibers are prepared, some days after entering fiber barrel 2, are stood, waits phase separation to terminate.
2. boundling:Gel fiber 6 after completing to be separated neatly is emitted at creel 1, is divided into three rows, often arranges three barrels, bucket
Interior gel fiber is uniformly arranged out, actively wire vent in order, circular latch closure respectively successively below Jing reciprocating levers 3, godet 5, active
After tri- roller of a, b, c in boundling traction roller group 4, the drawing-off to preliminary draft.Wherein, reciprocating lever 3 does at the uniform velocity reciprocal with stroke 10cm
Motion, to prevent strand adhesion.Three roller diameters in active boundling traction roller group 4 are 15cm, and roller a, the roller space of roller c are
30cm, roller b move down 25cm from roller a, roller c same planes.The gear ratio of roller a and roller b is 24:25.All frozen glue strand outermosts
Gel fiber and preliminary draft gathering at subtended angle be not more than 45 °.
3. extract:Strand Jing after preliminary draft is entered in extraction tank, goes out the first solvent with the second solvent extraction of volatile-type,
Then go out extraction tank.
4. it is dried:It is dried using one-level, two grades, three-level or three-level above drying baker.
5. hot gas spring:Super times hot gas spring and heat setting process is carried out, it is final to obtain finished fiber 1.
Embodiment 2:
1. 600D gel fibers are prepared, some days after entering fiber barrel 2, are stood, waits phase separation to terminate.
2. boundling:Gel fiber 6 after completing to be separated neatly is emitted at creel 1, is divided into three rows, often arranges three barrels, bucket
Interior gel fiber is uniformly arranged out, actively wire vent in order, circular latch closure respectively successively below Jing reciprocating levers 3, godet 5, active
After tri- roller of a, b, c in boundling traction roller group 4, the drawing-off to preliminary draft.Wherein, reciprocating lever 3 does at the uniform velocity reciprocal with stroke 15cm
Motion, to prevent strand adhesion.Three roller diameters in active boundling traction roller group 4 are 15cm, and roller a, the roller space of roller c are
25cm, roller b move down 30cm from roller a, roller c same planes.The gear ratio of roller a and roller b is 20:19.All frozen glue strand outermosts
Gel fiber and preliminary draft gathering at subtended angle be not more than 45 °.
3. as follows embodiment 1 obtains finished fiber 2.
Comparative example:
1. 200D gel fibers are prepared, some days after entering fiber barrel 2, are stood, waits phase separation to terminate.
2. boundling:The gel fiber after being separated is completed, is neatly emitted at creel 1, is divided into three rows, often arrange three barrels, bucket
Interior gel fiber is uniformly arranged out, actively in order wire vent, respectively Jing after the circular latch closure below reciprocating lever 3 and godet 5, to leading in advance
Place's drawing-off is stretched, without active boundling traction roller group.
3. as follows embodiment 1, obtains finished fiber 3.
The correction data of the fiber number of each embodiment finished fiber, dispersion and remaining useless gel fiber amount is as shown in table 1.
1 each embodiment finished product synopsis of table
Remarks:1 is the ratio of the standard deviation with meansigma methodss of fibre number;
2 proportions that are the more nominal fiber number of every batch finished product size deviation in the range of ± 5%.
As can be seen from Table 1, the finished fiber size deviation for being obtained using the embodiment of the present invention 1,2 methods described of embodiment
Less than the finished fiber size deviation that comparative example methods described is obtained, finished product dispersion is also less;With regard to remaining useless gel fiber
For amount, the 3rd row of only embodiment 2 has useless gel fiber on a small quantity, compared with comparative example, greatlys save useless gel fiber
Amount.
Above the specific embodiment of the present invention is described in detail, but which has been intended only as example, the present invention has not been limited
It is formed on particular embodiments described above.To those skilled in the art, any equivalent modifications carried out by the present invention and
Replacement is also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, should all cover within the scope of the invention.
Claims (8)
1. a kind of drawing of fiber method, the drawing of fiber include the preparation of gel fiber, boundling preliminary draft, extraction, are dried and heat
Drafting step, it is characterised in that increase wire process on actively before the boundling preliminary draft step;
Wherein, in the active, wire process is completed by boundling traction apparatuss, and the device is by the reciprocating lever (3), seal wire be arrangeding in parallel
Roller (5), active boundling traction roller group (4) and motor (7) composition;Wherein, active boundling traction roller group (4) are by least one
Drive roll is constituted, and passes through gear drive by the motor (7);
Active boundling traction roller group (4) are made up of three parallel drive rolls, and the section of three parallel drive rolls is formed
Triangle roll surface, drive roll a are maintained static, and drive roll b can be adjusted on the roll surface up and down, and drive roll c is in the roller
In plane can up and down, left and right adjusting.
2. method according to claim 1, it is characterised in that the rotating speed of three drive rolls is by changing travelling gear
Than adjusting;Wherein, the rotating speed of the rotating ratio drive roll a and drive roll c of the drive roll b is slow.
3. method according to claim 1, it is characterised in that the boundling traction apparatuss draw several gel fibers simultaneously,
In the several boundling traction apparatuss of drawing of fiber step series connection.
4. method according to claim 3, it is characterised in that the top of reciprocating lever (3) arranges several equidistant U
Type sub-wire tooth, and the reciprocating lever (3) does the reciprocating motion parallel to its axial direction, to prevent gel fiber adhesion.
5. method according to claim 3, it is characterised in that the reciprocating stroke of reciprocating lever (3) is 10-
15cm。
6. method according to claim 1, it is characterised in that the lower section of godet (5) arrange it is several at equal intervals
Circular rings, the gel fiber are passed through from the middle of circular rings.
7. method according to claim 1, it is characterised in that the fiber is polymer fiber.
8. method according to claim 1, it is characterised in that the fiber is superhigh molecular weight polyethylene fibers.
Priority Applications (1)
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CN201510031208.4A CN104562239B (en) | 2015-01-21 | 2015-01-21 | Fiber drawing method |
Applications Claiming Priority (1)
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CN201510031208.4A CN104562239B (en) | 2015-01-21 | 2015-01-21 | Fiber drawing method |
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CN104562239A CN104562239A (en) | 2015-04-29 |
CN104562239B true CN104562239B (en) | 2017-03-22 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105133060B (en) * | 2015-07-22 | 2017-05-03 | 浙江竟成特种单丝有限公司 | Drafting device of monofilament production line |
CN108977905B (en) * | 2018-08-31 | 2020-12-11 | 高安工业(江阴)有限公司 | Fibril preparation process and PET fiber prepared by same |
CN114717669B (en) * | 2022-03-30 | 2023-05-26 | 南通纺织丝绸产业技术研究院 | Nanofiber yarn and continuous yarn forming method thereof |
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JP2000265318A (en) * | 1999-03-17 | 2000-09-26 | Toray Ind Inc | Drawing method for synthetic staple |
CN101575742B (en) * | 2008-05-05 | 2011-01-26 | 宁波荣溢化纤科技有限公司 | Preparation method of ultra-high molecular weight polyethylene fiber |
CN101314871B (en) * | 2008-06-12 | 2010-06-23 | 东华大学 | Post-treatement method for PVA (polyvinyl alcohol) jelly glue fibre |
CN201495320U (en) * | 2009-08-26 | 2010-06-02 | 湖南中泰特种装备有限责任公司 | Drawing device and production line used for preparing high-strength high-model polyethylene fiber |
CN101775666B (en) * | 2010-01-22 | 2011-07-27 | 东华大学 | Preparation method of high-strength high-modulus polyethylene fiber |
CN101798711B (en) * | 2010-03-26 | 2011-06-15 | 山东爱地高分子材料有限公司 | Non-breakpoint direct spinning continuous production method of ultra-high molecular weight polyethylene fiber |
CN203238365U (en) * | 2012-12-20 | 2013-10-16 | 江苏神泰科技发展有限公司 | High-strength and high-modulus polyethylene fiber gel silk guide frame |
CN103255489A (en) * | 2013-06-01 | 2013-08-21 | 山东爱地高分子材料有限公司 | Continuous on-line production method of ultra-high modulus polyethylene fiber |
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