CN101210352A - Taylor awl multiple spray head static spinning machine - Google Patents
Taylor awl multiple spray head static spinning machine Download PDFInfo
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- CN101210352A CN101210352A CNA2007101727441A CN200710172744A CN101210352A CN 101210352 A CN101210352 A CN 101210352A CN A2007101727441 A CNA2007101727441 A CN A2007101727441A CN 200710172744 A CN200710172744 A CN 200710172744A CN 101210352 A CN101210352 A CN 101210352A
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- shower nozzle
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Abstract
The invention relates to a Taylor cone multi-nozzle electrostatic spinning machine, which comprises a nozzle box (1), an automatic liquid feeding device (2), a spinneret group, a high-voltage electrostatic generator (4) and a rolling mechanism, wherein the spinneret group is arranged in the nozzle box and is fed with liquid by the automatic liquid feeding device (2), yarns emitted by the electrostatic field generated by the high-voltage electrostatic generator (4) are collected by the rolling mechanism, and the spinneret group consists of a plurality of spinnerets arranged. The invention can improve the quality and the output of felt, and has stable operation and uniform product. Under the same process conditions, the thinness of the spun nanofiber is half the thinness of fiber spun by conventional electrostatic spinning machine.
Description
Technical field
The invention belongs to field of textile machinery, relate in particular to a kind of multiple spray head static spinning machine.
Background technology
With on polymer solution or the melt band several thousand to volt high-pressure electrostatics up to ten thousand, charged drop is accelerated at the Taylor vertex of a cone under the electric field force effect, when electric field force was enough big, the polymer drop can overcome surface tension and form and spray thread.The refinement that under effects such as electric field force, viscous resistance, surface tension, is stretched of charged polymer jet, simultaneously charged jet in electric field owing to existing surface charge to bend.Thread is solvent evaporation or curing in course of injection, finally drops on the receiving system, forms the nanofiber mats of similar nonwoven fabric.In recent years, because the rapid intensification of nanosecond science and technology research makes this spining technology for preparing the nano-scale fiber of electrostatic spinning evoke people to its great interest of furtheing investigate.At present, electrostatic spinning has become and has produced most important, the effective method of nanofiber.But the diameter of electrospun fibers is thinner, thus yield poorly, and provide the electric field of drafting force to be interfered easily, hindered industrialized production and application.The output that improves electrostatic spinning is extremely urgent, and what wherein use morely is that a plurality of shower nozzles assemble raising output.
U.S.Pat.No.6,713,011 have reported static spins the apparatus and method that the liquid that contains fiber forming material obtains fibrofelt.Reveal in the literary composition with a plurality of nozzles and improve output, and, make spinning even by improving the formation and the collection of control jet.Thereby also reveal in the literary composition and use secondary electric field correction primary electric field to provide enough electric-field intensity surface tension that overcomes charged fluid and the interference that is close to shower nozzle/jet to help to form jet.The liquid feeding device design is accurate but let it be to the greatest extent, but sprinkler design down is difficult to avoid spinning solution to have little time to form fiber and drips down, and makes into the felt deterioration.Domesticly also obtaining gratifying achievement aspect the electrostatic spinning industrialization.Tongji University has delivered the patent of bull electrostatic spinning apparatus, but has only infusion set and spinning head, does not also form a machine.Donghua University ten thousand beautiful celerys have been delivered a kind of patent that can be used for the novel spinnerets of electrostatic spinning, and the fiber that it spins is thinner than common spinning equipment, but is difficult to reach nanoscale, and does not also form machine.
Summary of the invention
Technical problem to be solved by this invention provides a kind of Taylor awl multiple spray head static spinning machine, and production efficiency is low in the solution prior art, becomes the ropy defective of felt.
Technical scheme
A kind of Taylor awl multiple spray head static spinning machine, comprise shower nozzle case, automatic infusion device, spinning head group, HV generator and winding mechanism, described spinning head group is installed in the shower nozzle case is infused by automatic infusion device, HV generator produces the silk of electrostatic field emission and is collected by winding mechanism, and described spinning head group is that some spinning heads arrangements form.
Described spinning head is made up of metal shower nozzle and housing, and the spinning liquid level must not be lower than metal shower nozzle and lucite housing.
Described housing is a lucite.
Described winding mechanism is that base cloth or fiber collecting curtain are collected spinning by machinery control control.
Described shower nozzle case can be done straight reciprocating motion by electric control box and travel switch control.
The direction of motion of described shower nozzle case is vertical with the direction of motion of base cloth or fiber collecting curtain.
Described shower nozzle case maskable electric field, the motor and the pump housing of described automatic infusion device insulate.
The shape of single shower nozzle can be arbitrary shapes such as circle, triangle, rectangle; The size of single shower nozzle is unfixing, regulates according to the high pressure that applies, and the then single shower nozzle area of high pressure height is big, and it is little that height forces down then single shower nozzle area; The design of single shower nozzle makes the spinning liquid level must not be lower than metal shower nozzle and lucite housing, and spinning solution is except being subjected to the high-tension electricity field force in single shower nozzle, do not apply other additional force (for example adding magnetic field etc.), except metal shower nozzle and lucite housing, do not add any other object in single shower nozzle.
Beneficial effect
The present invention adopts the method for spray up, makes spinning solution can not drip to and makes into the felt deterioration on the felt; Use the jet head sets of many shower nozzles to improve the output of spinning; Under the identical situation of process conditions, it is half as large that the nanofiber fineness ratio conventional electrostatic spinning machine of spinning spins; With the electric field between housing shielding head and the head, the electric field with between shielded box shielding head and the frame makes that the electric field of electrostatic spinning is more stable; The reciprocating motion of shower nozzle case, the translation of the base cloth that cooperation and the motion of shower nozzle case are perpendicular makes finished product even, shower nozzle case and base cloth or fiber collecting curtain can move at a slow speed and adjustable-speed; The design infusion set makes the insulation of the pump housing and infusion set, and amount of infusion is accurately adjustable, make in the solution with high-tension electricity can not have influence on the rotation of motor.The design of infusion set can be satisfied continuous automatic infusion, keeps accurate amount of infusion, and producing for the electrostatic spinning machine serialization provides guarantee, can make the liquid level of liquid in the shower nozzle keep desirable arc, and many jets can be extracted out from the arc liquid level simultaneously incessantly.
Description of drawings
Fig. 1 Taylor awl multiple spray head static spinning machine schematic diagram;
1-shower nozzle case, 2-automatic infusion device, 3-spinning head, 4-HV generator, 5-base cloth or fiber collecting curtain, 6-electric control box, 7-travel switch, the control of 8-machinery;
Fig. 2 spinning head structural representation;
The Pareto diagram of shower nozzle in Fig. 3 shower nozzle case;
The sem photograph of Fig. 4 base cloth (spun-bonded non-woven fabrics) and nanofiber mats;
Figure a base cloth sem photograph, multiplication factor is 1000 times (fibre diameter is about 12um); The sem photograph of figure b nanometer felt, 20000 times of multiplication factors (average diameter is about 250nm)
The filter efficiency that the nanofiber mats of the different grammes per square metres of Fig. 5 spins respectively on melt spraying non-woven fabrics and spun-bonded non-woven fabrics compares.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
The present invention relates to a kind of Taylor awl multiple spray head static spinning machine, mainly comprise ejecting device, automatic infusion device 2, HV generator 4 and four parts of winding mechanism.Wherein high pressure generator adopts F10-II type HV generator; The reciprocating motion of shower nozzle case 1 provides compressed air by ZB-0.1/8 type air compressor, provides reciprocating motion power by Cylinder SC50-500, with two travel switch 7LX19-001 controlled motions back and forth.Winding mechanism 100YYJ-250 type GEAR MOTOR transmission.Its technological process is: open total power switch → open HV generator power supply with preheating HV generator → the start automatic infusion device control cabinet valve of infusing → open, the shower nozzle case begins reciprocating motion → open high pressure generator high-voltage switch gear, adjust voltage, beginning spinning → open winding mechanism motor switch, after finishing, motor speed adjusting base cloth translation speed → spinning turns off automatic infusion device thereby regulate, stop to infuse → turn off the high pressure generator high-voltage switch gear, stop spinning → the turn off power supply of winding mechanism motor, what stop base cloth batches → turns off the control cabinet valve, stops the power supply of the reciprocating motion of shower nozzle case → turn off high pressure generator → turn off total power switch → take off from the work beam base cloth that has spun fiber.Realize by the following method:
(1) direction of spinning head, shape and distribution
Base cloth is positioned at the top of spinning head 3, and spinning head 3 sprays up, sees Fig. 1.The infusion set of accurate design can remove spinning solution with certain pressure or flow volume delivery to each shower nozzle.Drop not can as down the spray device in drop onto on the felt that is spun into, be broken to the felt quality.
Nozzle structure is seen Fig. 2, makes the shower nozzle tip form the drop of certain radian, and electric field force is easy to overcome the surface tension of solution like this.And, make each shower nozzle can extract a plurality of jets simultaneously out by improving solution and optimizing spinning technology parameter, improved the output of single shower nozzle.The a plurality of spinning heads of combination are seen Fig. 3 in the shower nozzle case, adjust distance and distribution between the shower nozzle, make between the shower nozzle that the interference between the jet is as far as possible little, thereby have guaranteed the uniformity of spinning, further improve the output of electrostatic spinning.The distance of a plurality of shower nozzles and distribute can also guarantee that each shower nozzle can extract a plurality of jets simultaneously out, and electric field influences each other lessly between shower nozzle, cooperates the motion of shower nozzle case and winding mechanism, make spinning evenly, quality of finished product good.
(2) adopt housing and shower nozzle case electric field shielding.
Distance between the multi-nozzle electrospinning shower nozzle is less, and electric field phase mutual interference between shower nozzle is isolated so need between the shower nozzle to be used for to shield, and as shown in Figure 2, single shower nozzle is made up of metal shower nozzle 3b and lucite housing 3a.Housing around the metal shower nozzle can partly shielding effect falls the interference of electric field between shower nozzle and the shower nozzle, and it is less to make between the shower nozzle that electric field disturbs, and electric field is more stable.Machine is made shelf with iron, and when the shower nozzle case moved near frame, frame was bigger to the shower nozzle electric field effects, the electric field instability that makes spinning, and also the shower nozzle case is reciprocating, has increased the instability of frame to the shower nozzle electric field influence.The shower nozzle case is seen Fig. 1 among the present invention, can shield frame and ambient substance to many shower nozzles electric field effects in the case, has further improved the stability of spinning electric field, makes spinning stable, thereby improves into the felt quality.
(3) many shower nozzles and base cloth motion respectively in vertical direction
Many ejecting devices jet beam is more concentrated, jet volatilizees in spinning journey does not have single shower nozzle desirable like that, and fiber volatilizees not exclusively in the fibrofelt of collecting, and shower nozzle case and base cloth all move among the present invention, make the fibrofelt internal solvent that the enough volatilization time be arranged, the felt quality of collecting is better.As shown in Figure 1, shower nozzle case 1 is done straight reciprocating motion by electric control box 6 controls.And by electric control box 6 control shower nozzle casees 1 reciprocating direction and speed.The coiling of base cloth 5 is finished by machinery control 8.The translation of the base cloths that the reciprocating motion of the shower nozzle case 1 of electric control box 6 control and machinery control 8 are controlled adds that many shower nozzles spray more uniformly that to make into the felt quality even, can realize the industrialization of electrostatic spinning.
(4) precision of infusion set design
Liquid level need keep certain shape on the shower nozzle, makes the surface tension of liquid less like this, applies the electric field that less high pressure obtains and extracts jet out with regard to being enough to overcome solution surface tension.Solution in many shower nozzles that the present invention adopts is communicated with, and solution can be with certain pressure or flow volume delivery to each shower nozzle.Solution is with high voltage in the process of spinning, thus the engine of automatic infusion device 2 and the pump housing insulate, make in the solution with high-tension electricity can not have influence on the rotation of engine.Infusion set of the present invention can be infused automatically continuously, for the serialization production of spinning machine provides prerequisite.
When using the present invention to adopt polyvinyl alcohol (PVA) to carry out spinning, spinning solution injects automatic infusion device 2, and transfusion speed is controlled at 0.05 ~ 0.5ml/min automatic transport in the shower nozzle case 1 on each shower nozzle 3.The voltage of high pressure generator 4 is adjusted to 40kV, and base cloth or fiber collecting curtain 5 be with the speed translation of 0.5m/min, and match with the reciprocating motion of shower nozzle case 1, and the distance of accepting apart from base cloth or fiber collecting curtain 5 and shower nozzle 3 is 20cm.The diameter of the nanofiber mats that produces is about 250nm, and Gram Mass is 1.5g/m
2, see ESEM Fig. 4.Regulate technological parameter simultaneously, produce the nanofiber mats of different grammes per square metres, and tested the filter efficiency of different grammes per square metre nanofiber mats.Experiment spins the nanofiber of different grammes per square metres spunbond or melt and spray on the base cloth respectively, tests its strainability.The method of test is high efficiency particulate air filter method (HEPA), i.e. sodium flame method.Test result is seen Fig. 5.
Claims (7)
1. a Taylor bores multiple spray head static spinning machine, comprise shower nozzle case (1), automatic infusion device (2), spinning head group, HV generator (4) and winding mechanism, described spinning head group is installed in the shower nozzle case and is infused by automatic infusion device (2), HV generator (4) produces the silk of electrostatic field emission and collected by winding mechanism, it is characterized in that: described spinning head group is that some spinning heads (3) arrangement forms.
2. Taylor awl multiple spray head static spinning machine as claimed in claim 1, it is characterized in that: described spinning head (3) is made up of metal shower nozzle (3b) and housing (3a), and the spinning liquid level must not be lower than metal shower nozzle (3b) and lucite housing (3a).
3. Taylor awl multiple spray head static spinning machine as claimed in claim 2, it is characterized in that: described housing (3a) is a lucite.
4. Taylor awl multiple spray head static spinning machine as claimed in claim 1 is characterized in that: described winding mechanism is that base cloth or fiber collecting curtain (5) are collected spinning by machinery control (8) control.
5. as the Taylor awl multiple spray head static spinning machine of the described spray up of any claim in the claim 1～4, it is characterized in that: described shower nozzle case (1) can be done straight reciprocating motion by electric control box (6) and travel switch (7) control.
6. Taylor awl multiple spray head static spinning machine as claimed in claim 5, it is characterized in that: the direction of motion of described shower nozzle case (1) is vertical with the direction of motion of base cloth or fiber collecting curtain (5).
7. as the described Taylor awl of any claim in the claim 1～4 multiple spray head static spinning machine, it is characterized in that: described shower nozzle case (1) maskable electric field, the motor and the pump housing of described automatic infusion device (2) insulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101727441A CN101210352B (en) | 2007-12-21 | 2007-12-21 | Taylor awl multiple spray head static spinning machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101727441A CN101210352B (en) | 2007-12-21 | 2007-12-21 | Taylor awl multiple spray head static spinning machine |
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| CN101210352A true CN101210352A (en) | 2008-07-02 |
| CN101210352B CN101210352B (en) | 2010-11-17 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818381A (en) * | 2010-04-27 | 2010-09-01 | 东华大学 | Novel magnetic stirring electrostatic spinning spray head and using method thereof |
| CN101880916A (en) * | 2010-06-04 | 2010-11-10 | 殷雪琰 | Method for mass production and preparation of nano-fiber |
| CN102191574A (en) * | 2011-05-19 | 2011-09-21 | 厦门大学 | Nano fiber batch manufacturing device |
| CN102529366A (en) * | 2012-01-13 | 2012-07-04 | 华中科技大学 | Device and method for preparing array patterns based on static spray printing |
| CN103409813A (en) * | 2013-07-30 | 2013-11-27 | 苏州豪建纺织有限公司 | Melt spinning flocking device |
| CN103572448A (en) * | 2013-11-20 | 2014-02-12 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
| CN105233568A (en) * | 2015-09-29 | 2016-01-13 | 东华大学 | Static spinning method and nano fiber/glass fiber composite filter material prepared by same |
| CN105937060A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle |
| CN106435772A (en) * | 2016-10-21 | 2017-02-22 | 上海工程技术大学 | Method and device for preparing nano fiber by using electrostatic method |
| CN108385172A (en) * | 2018-01-17 | 2018-08-10 | 广州市白云美好滤清器厂 | A kind of nanofiber manufacturing equipment |
| CN108914222A (en) * | 2018-09-05 | 2018-11-30 | 东华大学 | A kind of electrospinning process of the double water-spraying fabrics of free surface |
| CN111041708A (en) * | 2019-12-30 | 2020-04-21 | 浙江清华柔性电子技术研究院 | Composite membrane, preparation method thereof and pressure sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141056Y (en) * | 2007-12-21 | 2008-10-29 | 东华大学 | Multi-nozzle spinning machine for spraying upwards |
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2007
- 2007-12-21 CN CN2007101727441A patent/CN101210352B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818381A (en) * | 2010-04-27 | 2010-09-01 | 东华大学 | Novel magnetic stirring electrostatic spinning spray head and using method thereof |
| CN101880916A (en) * | 2010-06-04 | 2010-11-10 | 殷雪琰 | Method for mass production and preparation of nano-fiber |
| CN102191574A (en) * | 2011-05-19 | 2011-09-21 | 厦门大学 | Nano fiber batch manufacturing device |
| CN102191574B (en) * | 2011-05-19 | 2012-09-05 | 厦门大学 | Nano fiber batch manufacturing device |
| CN102529366A (en) * | 2012-01-13 | 2012-07-04 | 华中科技大学 | Device and method for preparing array patterns based on static spray printing |
| CN102529366B (en) * | 2012-01-13 | 2014-12-17 | 华中科技大学 | Device and method for preparing array patterns based on static spray printing |
| CN103409813A (en) * | 2013-07-30 | 2013-11-27 | 苏州豪建纺织有限公司 | Melt spinning flocking device |
| CN103409813B (en) * | 2013-07-30 | 2016-04-13 | 苏州豪建纺织有限公司 | A kind of melt spinning flocking plant |
| CN103572448B (en) * | 2013-11-20 | 2017-02-15 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
| CN103572448A (en) * | 2013-11-20 | 2014-02-12 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
| CN105233568A (en) * | 2015-09-29 | 2016-01-13 | 东华大学 | Static spinning method and nano fiber/glass fiber composite filter material prepared by same |
| CN105937060A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle |
| CN105937060B (en) * | 2016-06-27 | 2019-02-12 | 佛山轻子精密测控技术有限公司 | A kind of electrostatic spinning nozzle of cylindrical surface helix array distribution mode |
| CN106435772A (en) * | 2016-10-21 | 2017-02-22 | 上海工程技术大学 | Method and device for preparing nano fiber by using electrostatic method |
| CN108385172A (en) * | 2018-01-17 | 2018-08-10 | 广州市白云美好滤清器厂 | A kind of nanofiber manufacturing equipment |
| CN108914222A (en) * | 2018-09-05 | 2018-11-30 | 东华大学 | A kind of electrospinning process of the double water-spraying fabrics of free surface |
| CN111041708A (en) * | 2019-12-30 | 2020-04-21 | 浙江清华柔性电子技术研究院 | Composite membrane, preparation method thereof and pressure sensor |
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| CN101210352B (en) | 2010-11-17 |
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Granted publication date: 20101117 Termination date: 20121221 |