CN106835412B - Method and device for twisting electrostatic spinning nanofiber into yarn - Google Patents
Method and device for twisting electrostatic spinning nanofiber into yarn Download PDFInfo
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- CN106835412B CN106835412B CN201710099332.3A CN201710099332A CN106835412B CN 106835412 B CN106835412 B CN 106835412B CN 201710099332 A CN201710099332 A CN 201710099332A CN 106835412 B CN106835412 B CN 106835412B
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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
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/06—Threads formed from strip material other than paper
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- 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
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
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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
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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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
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
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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
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/20—Protein-derived artificial fibres
- D10B2211/22—Fibroin
Abstract
The invention relates to a method and a device for twisting a nanofiber belt into yarn by electrostatic spinning, which is characterized in that the nanofiber is compounded on a base fabric in a film-shaped manner by the electrostatic spinning method, the base fabric compounded with an electrostatic spinning nanofiber membrane is wound into a roll to form an electrostatic spinning nanofiber membrane/base fabric compound roll, the base fabric roll compounded with the electrostatic spinning nanofiber membrane is drawn by a feeding roller and fed into a cutting zone, the base fabric entering the cutting zone is separated from the electrostatic spinning nanofiber membrane, the base fabric is recovered by a collecting mechanism, the electrostatic spinning nanofiber membrane is cut into strips to form the electrostatic spinning nanofiber belt, the electrostatic spinning nanofiber belt is output by an output roller, the electrostatic spinning nanofiber belt is twisted into yarn under the action of a twisting mechanism, and the yarn is wound on a bobbin. The method and the device for twisting the electrostatic spinning nanofiber into the yarn have good stability and high efficiency, and are suitable for batch production of the electrostatic spinning nanofiber yarn.
Description
Technical Field
The invention belongs to the field of electrostatic spinning micro-nano fiber yarn forming, and relates to a method and a device for twisting electrostatic spinning nano fibers into yarns.
Background
Electrospinning is one of the major methods for mass production of polymer fibers having diameters of tens of nanometers to several micrometers. The electrostatic spinning technology is fast and efficient. The equipment is simple and easy to operate. It is easy to control the chemical composition and physical properties of the article. The prepared fiber membrane has the advantages of high porosity, large specific surface area, large length-diameter ratio and the like, and is widely applied to the aspects of filter medium materials, electronic and optical materials, super-hydrophobic materials, biomedical functional materials, reinforced composite materials, small-diameter artificial blood vessels, nerve conduits and the like. The electrostatic spinning single fiber and the fiber membrane thereof have small strength and are difficult to be applied independently. Twisting electrospun nanofibers into yarn is one of the effective ways for practical applications.
In the current invention patent, the disclosed invention patent CN101033563A adopts a conjugated electrospinning method to obtain a skin-core composite nanofiber yarn; the disclosed invention patent CN104739473A utilizes conjugate electrospinning to make nanofiber yarn, and further coats a film on the surface of the yarn to be used as a nerve conduit; the disclosed invention patent CN103266365A passes the fiber bundle obtained by electrostatic spinning through coagulating bath, and draws, heats and twists with air flow to form nanofiber yarn; the disclosed invention patent CN102703998A collects the nano-fiber ejected from two spinneret orifices and then twists the nano-fiber by an air flow nozzle to prepare the nano-fiber yarn. The existing patent has the defects of poor controllability of yarn quality and low efficiency.
It can be seen that the patents of the present invention for electrostatic spinning of nanofiber yarn have not reported any methods and related devices from rolling of nanofiber composite film, cutting of film into strips, peeling of film from substrate in strips, and twisting to yarn.
Disclosure of Invention
The invention aims to provide a method for twisting an electrostatic spinning nanofiber belt into yarn, which is characterized in that an electrostatic spinning nanofiber membrane/base cloth composite roll is drawn and unwound by a feeding roller, the electrostatic spinning nanofiber membrane is separated from the base cloth by a base cloth guiding roller and a stripping roller, the electrostatic spinning nanofiber membrane is cut into strips by laser, and then the strips are twisted into the yarn.
The technical scheme for solving the technical problem is as follows: a method for twisting the nano-fibre band to become yarn includes such steps as electrostatically spinning to compound the nano-fibre film onto substrate cloth, winding the substrate cloth with nano-fibre film to become a coiled composite roll of nano-fibre film/substrate cloth, drawing the said substrate cloth by roller, feeding it to cutting area, separating the substrate cloth from nano-fibre film, collecting the substrate cloth, cutting the nano-fibre film to become nano-fibre band, delivering it by roller, twisting to become yarn, and winding it on bobbin.
The raw material is the electrostatic spinning nanometer fiber film/base cloth composite roll, the electrostatic spinning nanometer fiber film raw material comprises various synthetic high polymers, regenerated cellulose, natural high polymers such as fibroin or wool protein and various protein high polymers, and can also be organic/inorganic composite. The base fabric material comprises woven fabric, knitted fabric, non-woven fabric, paper and the like.
In the electrostatic spinning nanofiber membrane, the electrostatic spinning nanofibers can be randomly distributed, and can also be oriented and arranged along the unwinding direction of the electrostatic spinning nanofiber membrane/base fabric composite roll.
The width of the electrostatic spinning nanofiber belt is more than thousand times of the diameter of the fibers in the electrostatic spinning nanofiber belt.
The method for cutting the electrostatic spinning nanofiber membrane into the strips comprises one or more of laser cutting, high-pressure water flow cutting, blade cutting, hot melting cutting and airflow cutting, and the number of the cut strips is at least two.
The number of the laser nozzles is at least one, and the laser emitted by the laser nozzles cuts the electrostatic spinning nanofiber membrane into strips.
After the electrostatic spinning nanofiber belt is discharged from a nip of a delivery roller, the electrostatic spinning nanofiber belt is wound in front of the nip by the transmission of yarn twist to form a twisting triangular area.
The invention also provides a device for twisting the electrostatic spinning nanofiber belt into yarn, which mainly comprises a feeding roller, a base cloth guide roller, an output roller, a stripping roller, a laser nozzle and a twisting and winding device, wherein the laser nozzle is arranged at the upper side of the unwound electrostatic spinning nanofiber membrane, the electrostatic spinning nanofiber membrane is cut into a plurality of strips, the electrostatic spinning nanofiber belt is discharged from a jaw of the output roller and twisted into yarn by the twisting and winding device, the twisting and winding device consists of a bobbin, a winding hook, a winding disc and a spindle blade, the bobbin is inserted on the spindle blade and is driven by friction of the spindle blade to rotate, the spindle blade simultaneously drives the bobbin to reciprocate up and down, the movement distance of the motion is equal to the length of the winding yarn on the bobbin, the winding hook is fixed on the winding disc, the rotation of the spindle blade adds twist to the axial direction of the yarn, and the speed of the spindle blade is higher than that of the winding disc, each electrostatic spinning nanofiber belt corresponds to a set of yarn guide ring, bobbin, yarn winding hook, yarn winding disc and spindle blade to form a twisting and winding device.
The jaws formed by the feeding rollers hold the electrospun nanofiber membrane/base cloth, and the rotation of the feeding rollers enables the electrospun nanofiber membrane/base cloth to be unwound from the roll. The surface linear speeds of the stripping roller and the base cloth guide roller are the same as those of the feeding roller. The rotation of the base cloth guide roller and the stripping roller strips the base cloth and the electrostatic spinning nanofiber membrane, and the stripped base cloth is wound by the base cloth winding frame. The surface linear speed of the base cloth roll is the same as that of the base cloth guide roller.
The number of the laser nozzles is at least one, and the laser emitted by the laser nozzles cuts the electrostatic spinning nanofiber membrane into strips.
The electrostatic spinning nanofiber belt is held by a jaw formed by the output roller, the surface linear velocity of the output roller is the same as that of the feeding roller, and the electrostatic spinning nanofiber belt is output by the rotation of the output roller.
The yarn guide ring is positioned right above the bobbin and is lower than the nip of the delivery roller. The yarn guide ring guides the yarn to the twisting and winding device.
The twisting and winding device consists of a yarn guide ring, a bobbin, a yarn winding hook, a yarn winding disc and a spindle blade. The bobbin is inserted onto the spindle blade and is driven to rotate by friction of the spindle blade. The spindle blade simultaneously drives the bobbin to reciprocate up and down, and the moving stroke of the spindle blade is equal to the length of the wound yarn on the bobbin. The yarn winding hooks are fixed on the yarn winding discs, two yarn winding hooks are symmetrically fixed on each yarn winding disc, and connecting lines of the joint points of the two yarn winding hooks and the yarn winding discs pass through the axes of the yarn winding discs. Rotation of the spindle rod imparts an axial twist to the yarn. The spindle blade is faster than the winding disc and the difference in speed between the spindle blade and the winding disc causes the yarn to be wound onto the bobbin.
The device for twisting the electrostatic spinning nanofiber belts into yarns is characterized in that each electrostatic spinning nanofiber belt corresponds to a set of yarn guide ring, bobbin, yarn winding hook, yarn winding disc and spindle blade to form a twisting and winding device.
In the electrostatic spinning nanofiber membrane/base fabric composite roll, the nanofibers are arranged on the base fabric in a random mode or are arranged in an oriented mode along the unwinding direction of the electrostatic spinning nanofiber membrane/base fabric composite roll. In the invention, the electrostatic spinning nanofiber membrane/base fabric composite roll is rotationally unwound in the anticlockwise direction under the traction action of the feeding roller, and the surface linear velocity of the electrostatic spinning nanofiber membrane/base fabric composite roll is kept constant. The base cloth roll winds the base cloth clockwise, the electrostatic spinning nanofiber membrane is separated from the base cloth by the base cloth guide roller and the stripping roller, and the surface linear speed of the base cloth roll is consistent with that of the electrostatic spinning nanofiber membrane/base cloth composite roll. The feeding roller jaw and the output roller jaw have the function of clamping the middle nanofiber membrane/belt. The laser nozzle sprays a laser beam, and a row of laser beams cuts the electrospun nanofiber membrane into a plurality of strips. The electrostatic spinning nanofiber belt is drawn by a pair of output roller jaws, and the surface linear speeds of the output roller, the feeding roller, the stripping roller and the base cloth guide roller are consistent with those of the base cloth roll. After being discharged from the nip of the output roller, the electrostatic spinning nanofiber belt is subjected to the twisting transmission action formed by the rotation of the bobbin and the yarn winding hook to form a twisting triangular area. The electrostatic spinning nanofiber yarn with the twist passes through the yarn guide ring, passes through the yarn winding hook and is wound on the bobbin. The yarn winding hook is arranged on the yarn winding disc and rotates along the anticlockwise direction. The bobbin is mounted on the spindle blade and revolves in a counterclockwise direction. The spindle blade drives the bobbin to rotate to twist the yarn; the difference of the rotation speed of the spindle rod and the yarn winding hook enables the yarn to be wound on the bobbin. The spindle blade reciprocates up and down while rotating, so that the yarn is uniformly wound on the bobbin. Two yarn winding hooks are arranged on each yarn winding disc, so that the yarn winding discs can keep balance when rotating.
The invention has the following beneficial effects: in the electrostatic spinning process, the jet stream is dispersed in a spiral bending unstable shape after passing through a stabilization stage, and the scattering area of the formed nano fiber is larger. Electric field mutual interference among the multiple-nozzle electrostatic spinning nozzles causes the nano fibers to be more spread. The electrostatic spinning nano-fiber is directly collected and twisted into yarn by means of air flow or liquid and other media, and compared with the method and the device, the method and the device have long process and difficult operation. According to the method and the device for twisting the electrostatic spinning nanofiber belt into the yarn, the electrostatic spinning nanofiber membrane is stripped from the base cloth and cut into thin strips, and the diameter of the nanofiber is generally below micron, and the length-diameter ratio of the fiber in the electrostatic spinning nanofiber belt with the width of more than millimeter is more than one thousand. And the electrostatic spinning nanofiber belt is softer and is easy to twist to form yarns. The method and the device for twisting the electrostatic spinning nanofiber into the yarn have high stability and high efficiency, and are suitable for batch production of the electrostatic spinning nanofiber yarn.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a method and apparatus for electrospinning nanofibers into yarns with twisting according to the present invention;
FIG. 2 is the prepared electrospun PVDF-TrFE nanofiber yarn.
Detailed Description
The present invention is described in detail below with reference to the following embodiments and the accompanying drawings, the specific method of the embodiments is only for illustrating the present invention, the scope of the present invention is not limited by the embodiments, the present invention can be modified and changed in various forms and structures in the application, and the equivalent forms based on the present invention are also within the scope of the claims of the present invention.
Examples
As shown in fig. 1, the device for twisting the electrospun nanofiber ribbon into a yarn mainly comprises a composite winding frame 1, a electrospun nanofiber membrane/base fabric composite winding 2, a electrospun nanofiber/base fabric composite film 3, an upper feeding roller 4, a lower feeding roller 5, a stripping roller 6, a laser nozzle 7, a laser 8, a base fabric 9, an upper base fabric guiding roller 10, a lower base fabric guiding roller 11, a electrospun nanofiber ribbon 12, a laser cutting line 13, a base fabric winding frame 14, a base fabric winding 15, an upper output roller 16, a lower output roller 17, a nanofiber ribbon twisting triangle 18, a nanofiber yarn 19, a yarn guide ring 20, a bobbin 21, a yarn winding hook 22, a yarn winding disc 23 and a spindle blade 2. The electrostatic spinning nanofiber/base fabric composite film 3 is held by a jaw formed by an upper feeding roller 4 and a lower feeding roller 5, and the electrostatic spinning nanofiber film/base fabric composite roll 2 is rotated and unwound from the composite roll frame 1 at a constant surface linear speed by the rotation of the feeding rollers. The surface linear velocities of the detaching roller 6, the upper base cloth guide roller 10, and the lower base cloth guide roller 11 are the same as those of the upper feed roller 4. The rotation of the peeling roller 6, the upper base cloth guide roller 10, and the lower base cloth guide roller 11 peels the base cloth 9 and the electrospun nanofiber membrane, and the peeled base cloth 9 is wound up by the base cloth roll 15 on the base cloth roll holder 14. The surface linear velocity of the base fabric roll 15 is the same as that of the upper base fabric guide roller 10. An array of laser nozzles 7 emits laser light 8 to cut the electrospun nanofiber membrane along laser cut lines 13 into electrospun nanofiber ribbons 12. The nip formed by the upper delivery roller 16 and the lower delivery roller 17 holds the electrospun nanofiber ribbon 12 and delivers the electrospun PVDF-TrFE nanofiber ribbon 12 from the nip of the rollers at a constant surface linear velocity. The electrostatic spinning nanofiber belt 12 forms an electrostatic spinning nanofiber belt twisting triangle 18 on the output side of the nip of the output roller under the action of the twisting transmission of the electrostatic spinning nanofiber yarn 19. The electrospun nanofiber yarn 19 is guided by the guide ring 20 and then passes around the winding hook 22 and is wound onto the bobbin 21. The bobbin 21 is driven by the spindle rod 24 to rotate and axially twist the electrostatic spinning nanofiber yarn 19; the bobbin 21 is simultaneously driven by the spindle rod 24 to make a linear reciprocating motion, and the electrostatic spinning nanofiber yarn 19 is uniformly wound on the bobbin 21. The winding hook 22 is driven to rotate by the winding disc 23, and the difference in the rotation speed between the bobbin 21 and the winding hook 22 causes the yarn to be wound on the bobbin 21.
The specific method comprises the following steps: the PVDF-TrFE nano fiber is compounded on the base cloth in a film-forming state by an electrostatic spinning method, the base cloth compounded with the electrostatic spinning nano fiber film is wound into a roll to form an electrostatic spinning nano fiber film/base cloth compound roll, the base cloth roll compounded with the electrostatic spinning nano fiber film is drawn by a feeding roller and fed into a cutting area, the base cloth entering the cutting area is separated from the electrostatic spinning nano fiber film, the base cloth is recovered by a collecting mechanism, the electrostatic spinning nano fiber film is cut into a strip shape to form an electrostatic spinning nano fiber belt, the electrostatic spinning nano fiber belt is output by an output roller, yarns are twisted under the action of a twisting mechanism and are wound on a bobbin.
The raw material of the electrostatic spinning nanofiber membrane can also be various synthetic polymers, regenerated cellulose, natural polymers such as fibroin or wool protein and other various protein polymers, and can also be organic/inorganic composites. The base fabric material comprises woven fabric, knitted fabric, non-woven fabric, paper and the like.
In the electrostatic spinning nanofiber membrane, the electrostatic spinning nanofibers can be randomly distributed, and can also be oriented and arranged along the unwinding direction of the electrostatic spinning nanofiber membrane/base fabric composite roll.
The width of the electrostatic spinning nanofiber belt is more than thousand times of the diameter of the fibers in the electrostatic spinning nanofiber belt.
The method for cutting the electrostatic spinning nanofiber membrane into the strips comprises one or more of laser cutting, high-pressure water flow cutting, blade cutting, hot melting cutting and airflow cutting, and the number of the cut strips is at least two.
The number of the laser nozzles is at least one, and the laser emitted by the laser nozzles cuts the electrostatic spinning nanofiber membrane into strips.
After the electrostatic spinning nanofiber belt is discharged from a nip of a delivery roller, the electrostatic spinning nanofiber belt is wound in front of the nip by the transmission of yarn twist to form a twisting triangular area.
The obtained electrospun PVDF-TrFE nanofiber yarn is shown in figure 2.
Claims (9)
1. A method for twisting nano-fiber tape into yarn by electrostatic spinning is characterized in that: the method comprises the steps of compounding nano fibers on base cloth in a film-forming manner by using an electrostatic spinning method, winding the base cloth compounded with the electrostatic spinning nano fiber film into a roll to form an electrostatic spinning nano fiber film/base cloth compound roll, drawing the base cloth roll compounded with the electrostatic spinning nano fiber film through a feeding roller, feeding the base cloth roll compounded with the electrostatic spinning nano fiber film into a cutting area, separating the base cloth entering the cutting area from the electrostatic spinning nano fiber film, recovering the base cloth by a collecting mechanism, cutting the electrostatic spinning nano fiber film into strips to form an electrostatic spinning nano fiber belt, outputting the electrostatic spinning nano fiber belt through an output roller, twisting the electrostatic spinning nano fiber belt into yarns under the action of a twisting mechanism, and winding the yarns on a bobbin.
2. The method of electrospinning nanofiber ribbon twisting into a yarn of claim 1, wherein: the width of the electrostatic spinning nanofiber belt is more than thousand times of the diameter of the fibers in the electrostatic spinning nanofiber belt.
3. The method of electrospinning nanofiber ribbon twisting into a yarn of claim 1, wherein: in the electrostatic spinning nanofiber membrane, the electrostatic spinning nanofibers can be randomly distributed, and can also be oriented and arranged along the unwinding direction of the electrostatic spinning nanofiber membrane/base fabric composite roll.
4. The method of electrospinning nanofiber ribbon twisting into a yarn of claim 1, wherein: the raw materials of the electrostatic spinning nanofiber membrane are one or more of synthetic high polymer, regenerated cellulose and natural high polymer, organic compound and inorganic compound, and the base fabric is woven fabric or knitted fabric or non-woven fabric or paper.
5. The method of electrospinning nanofiber ribbon twisting into a yarn of claim 1, wherein: the method for cutting the electrostatic spinning nanofiber membrane into the strips adopts one or more of laser cutting, high-pressure water flow cutting, blade cutting, hot melting cutting and airflow cutting, and the number of the cut strips is at least two.
6. A device for twisting nano-fiber into yarn for electrostatic spinning mainly comprises a feeding roller, a base cloth guide roller, an output roller, a stripping roller, a laser nozzle and a twisting and winding device, and is characterized in that: the laser nozzle is arranged on the upper side of the unwound electrospun nanofiber membrane, the electrospun nanofiber membrane is cut into a plurality of strips, and the electrospun nanofiber strips are discharged from a nip of a delivery roller and twisted into yarns by a twisting and winding device; the feeding roller forms a jaw to hold the electrostatic spinning nanofiber membrane/base cloth, the electrostatic spinning nanofiber membrane/base cloth is unwound from a roll by the rotation of the feeding roller, the surface linear speeds of the stripping roller and the base cloth guiding roller are the same as those of the feeding roller, the base cloth and the electrostatic spinning nanofiber membrane are stripped by the rotation of the base cloth guiding roller and the stripping roller, the stripped base cloth is rolled up by the base cloth rolling frame, and the surface linear speed of the base cloth roll is the same as that of the base cloth guiding roller; the twisting and winding device comprises a yarn guide ring, a bobbin, a yarn winding hook, a yarn winding disc and a spindle blade, wherein the bobbin is inserted onto the spindle blade and is driven to rotate by the spindle blade in a friction mode, the spindle blade simultaneously drives the bobbin to do up-and-down reciprocating motion, the moving distance of the motion is equal to the length of the yarn winding on the bobbin, the yarn winding hook is fixed on the yarn winding disc, the rotation of the spindle blade axially twists yarns, the speed of the spindle blade is higher than that of the yarn winding disc, and each electrostatic spinning nanofiber band corresponds to one set of bobbin, the yarn winding hook, the yarn winding disc and the spindle blade to form the twisting and winding device and the yarn guide ring.
7. The device for electrospinning of nanofibers ribbon twisting into yarns according to claim 6, characterized by: the number of the laser nozzles is at least one, and the laser emitted by the laser nozzles cuts the electrostatic spinning nanofiber membrane into strips.
8. The device for electrospinning of nanofibers ribbon twisting into yarns according to claim 6, characterized by: the electrostatic spinning nanofiber belt is held by a jaw formed by the output roller, the surface linear velocity of the output roller is the same as that of the feeding roller, and the electrostatic spinning nanofiber belt is output by the rotation of the output roller.
9. The device for electrospinning of nanofibers ribbon twisting into yarns according to claim 6, characterized by: the yarn guide ring is positioned right above the bobbin and lower than the nip of the output roller, the yarn is introduced into the twisting and winding device by the yarn guide ring, two yarn winding hooks are symmetrically fixed on each yarn winding disc, and the connecting line of the joint points of the two yarn winding hooks and the yarn winding disc passes through the axis of the yarn winding disc.
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| CN107502957B (en) * | 2017-07-06 | 2019-12-10 | 东华大学 | Batch pre-bundling high-count nanofiber yarn production device and application method thereof |
| CN107268129A (en) * | 2017-07-07 | 2017-10-20 | 河南工程学院 | The preparation method of PVA nano-fibre yams |
| CN107245776B (en) * | 2017-07-19 | 2019-11-08 | 东华大学 | One kind being suitable for industrialization production nano fibre yarn line apparatus and its application method |
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| CN110079903B (en) * | 2019-05-21 | 2020-10-09 | 江西先材纳米纤维科技有限公司 | Preparation method and application of continuous long-line high-count yarn of electrospun nylon nanofiber |
| CN110067084B (en) * | 2019-05-21 | 2020-07-14 | 江西先材纳米纤维科技有限公司 | Preparation process and application of ultra-high count PI electrospun fiber long yarn |
| CN111254507B (en) * | 2020-01-19 | 2020-12-01 | 武汉纺织大学 | High-strength chitosan filament and interfacial polymerization preparation method and device thereof |
| CN111575861A (en) * | 2020-04-20 | 2020-08-25 | 蔡松来 | Fancy yarn production process |
| CN111893617B (en) * | 2020-07-29 | 2022-11-18 | 浙江理工大学 | Preparation method of regenerated silk protein nanofiber intelligent fabric |
| CN113235192B (en) * | 2021-04-28 | 2022-12-20 | 东华大学 | Fire grass fiber collecting device |
| CN114941189B (en) * | 2022-06-02 | 2023-08-29 | 大连工业大学 | Continuous winding and twisting yarn forming device for electrostatic spinning nanofiber membrane and application |
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