CN109267160A - A kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas - Google Patents
A kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas Download PDFInfo
- Publication number
- CN109267160A CN109267160A CN201811315128.1A CN201811315128A CN109267160A CN 109267160 A CN109267160 A CN 109267160A CN 201811315128 A CN201811315128 A CN 201811315128A CN 109267160 A CN109267160 A CN 109267160A
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- CN
- China
- Prior art keywords
- syringe needle
- needle
- plate
- gas
- array
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- D01D5/0007—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
-
- 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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
Abstract
A kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas, is equipped with upper cover plate, syringe needle mounting plate, conductive plate, support plate, needle array and gas hood；Upper cover plate sets inlet opening, and upper cover plate is connect with liquid feed device；Syringe needle mounting plate is hierarchic structure, and the difference in height of hierarchic structure is consistent with the difference in height of corresponding position syringe needle；Conductive plate is connected with high-voltage power cathode；Support plate and conductive plate cooperate, and support plate sets support plate through-hole, with the big coaxial distribution such as hole on conductive plate；Needle array sets the syringe needle arranged by arcuate array, and the syringe needle in needle array middle position is located at minimum point, the two sides syringe needle symmetry arrangement of needle array；Gas hood is set there are two air inlet, and gas hood is connected by gas-guide tube with feeder.The electric field inhibition interference between the more fluid jet nozzles of electrostatic spinning and the electrostatic interference between more jet streams can be reduced, improve more jet densities and jetting stability, Electrospun nano-fibers deposition efficiency is improved, realize the rapid shaping of large area even tunica fibrosa.
Description
Technical field
The present invention relates to electrostatic spinning fields, spray more particularly, to a kind of arcuate array electrostatic spinning with the constraint of sheath gas
Head.
Background technique
As a kind of micro nanometer fiber manufacturing technology, electrostatic spinning is with its device simple, operation is controllable, raw material extensively, at
The advantages that this is cheap, has caused the extensive concern of scholar or even industrial circle.Traditional single injector electrostatic spinning efficiency is very
Low, only 0.1g/h or so limits the promotion of electro spinning nano fiber yield.Realize uniform diameter, the high nanofiber of porosity
Before quick, the mass deposition preparation of film is the emphasis of its application study and the important of electrostatic spinning technique industrialization promotion
It mentions.And probe into the key that the more jet stream injection control strategies of high density have become mass electrostatic spinning.Spininess mass Static Spinning
Silk is to improve the most direct mode of fiber production, and can effectively inhibit the Free Surface of electrified jet to float using nozzle,
Improve fiber distributing homogeneity.Its shortcoming is that the non-uniform electric field at repulsion and different spray nozzles between adjacent nozzle will lead to and penetrate
Stream is difficult to continually and steadily spray (Theron S A, Yarin A L, Zussman E, et al.Multiple jets in
electrospinning:experiment and modeling[J].Polymer,2005,46(9):2889-2899).Cause
This, weakens the repulsion interference between more jet streams, improves the research emphasis that jet density has become spininess mass electrostatic spinning.
Summary of the invention
Inhibit interference the purpose of the present invention is to provide the electric field that can reduce between the more fluid jet nozzles of electrostatic spinning and penetrates more
Electrostatic interference between stream improves more jet densities and jetting stability, promotes the volatilization of jet stream solvent, improves nanofiber matter
Amount, auxiliary sheath gas provide jet stream additional stretching and effect of contraction, reduce electro spinning nano fiber diameter, improve electrostatic spinning and receive
Rice fiber deposition efficiency, it can be achieved that large area even tunica fibrosa rapid shaping it is a kind of with sheath gas constraint arcuate array
Electrostatic spinning nozzle.
The present invention is equipped with upper cover plate, syringe needle mounting plate, conductive plate, support plate, needle array and gas hood；
The upper cover plate is equipped with inlet opening, and upper cover plate is connect by hose with liquid feed device, guarantees the controllable of spinning solution
Weight feed uniformly flows into each spinning syringe needle；
The syringe needle mounting plate is hierarchic structure, and the difference in height of hierarchic structure is consistent with the difference in height of corresponding position syringe needle,
Each ladder is equipped with the boss with needle array corresponding position, and boss and syringe needle inner hole are interference fitted, inside syringe needle mounting plate
For arc groove, arc groove and upper cover plate form solution tank, adequately buffer the flowing space to spinning solution, on syringe needle mounting plate with
Needle array corresponding position is equipped with through-hole runner, for realizing each uniform feed flow of spinning syringe needle；
The conductive plate is connected with high-voltage power cathode, and for providing space high-voltage electric field, conductive plate is hierarchic structure, rank
Terraced difference in height and corresponding position needle height difference are consistent, are equipped with conductive plate through-hole in syringe needle corresponding position, guarantee upper surface and needle
The frusto-conical portion of head is steadily contacted, and each syringe needle can good conductive；
The support plate and conductive plate cooperate, and support plate is equipped with support plate through-hole, and hole on conductive plate etc. is big coaxial divides
Cloth convenient for the installation and fixation of syringe needle avoids that the problems such as syringe needle falls off or is conductive bad occurs；
The needle array is equipped with the syringe needle by arcuate array arrangement, and the syringe needle in needle array middle position is located at minimum
Point, the two sides syringe needle symmetry arrangement of needle array；
The gas hood is set there are two air inlet, and gas hood is connected by gas-guide tube with feeder, controls gas using pressure regulator valve
The size of body flow and pressure, the bottom surface of gas hood are cambered surface, and the bottom surface of gas hood is equipped with coaxial stomata corresponding with needle position, needle
Head stretches out 1~3mm of gas hood, and auxiliary gas is flowed into from air inlet, from each coaxial after the buffer function of the airslide of gas hood
Stomata uniformly flows out, and constrains fluidic vectoring thrust sheath gas and stretches.
The inlet opening can be equipped with 2~4.
7~15 stainless steel dispensing needle heads can be used in the syringe needle, and difference in height can differ between syringe needle for 0~8mm, between syringe needle
Away from can be 5~20mm.
The height of the boss can be 2~4mm.
The diameter of the conductive plate through-hole can be 1~3mm.
The diameter of the support plate through-hole can be 1~3mm.
The syringe needle mounting plate is equipped with threaded hole, and syringe needle mounting plate, conductive plate, support plate can be connected by lock-screw is fixed
It connects.
The diameter of the coaxial stomata can be 1~2mm.
Threaded hole can be equipped on the upper cover plate, upper cover plate, syringe needle mounting plate, gas hood can be fixedly connected by lock-screw.
The conductive plate can be by metal material processing, and the upper cover plate, syringe needle mounting plate, support plate, gas hood can be by insulating
Material processing.
The present invention can reduce the electric field between the more fluid jet nozzles of electrostatic spinning and inhibit the electrostatic between interference and more jet streams dry
It disturbs, improves more jet densities and jetting stability, Electrospun nano-fibers deposition efficiency is improved, to realize that large area is uniform
The rapid shaping of nano fibrous membrane.
The present invention carries out the more jet stream spinning of high density using spininess head array, can effectively improve the deposition of electro spinning nano fiber
Efficiency.Needle array uses arc arrangement mode, can effectively weaken the electric jamming inhibiting effect in more jet stream course of injection, mention
High more jet stream jetting stabilities.By introducing the constraint of sheath gas, accelerates spinning jet using the drawing force of secondary air and spray, improve
Fiber jet efficiency refines jet stream, reduces nanofiber diameter, promotes the volatilization of jet stream solvent, reduces bead structure in fiber
It is formed, helps to improve electrospinning fibre into film uniformity and quality of forming film.Secondary air can carry away needle surface charge, reduce
Jet surface charge density, to help to further decrease the electrostatic interference between jet stream, that realizes the more jet streams of high density can
Control spray printing.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the top view of gas hood.
Fig. 3 is the top view of conductive plate.
Each label in the figure are as follows: 1. upper cover plates, 2. syringe needle mounting plates, 3. outer locking screws, 4. conductive plates, 5. support plates,
6. internal locking screw, 7. gas hoods, 8. needle array.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1 it is a specific embodiment of the invention, is equipped with upper cover plate 1, syringe needle mounting plate 2, outer locking screw
3, conductive plate 4, support plate 5, internal locking screw 6, gas hood 7 and needle array 8.The syringe needle mounting plate 2 is equipped with threaded hole, needle
Head mounting plate 2, conductive plate 4, support plate 5 are fixedly connected by internal locking screw 6.Upper cover plate 1 is equipped with threaded hole, upper cover plate 1, needle
Head mounting plate 2, gas hood 7 are fixedly connected by outer locking screw 3.Needle array 8 is arranged by 9 stainless steel dispensing needle heads by arcuate array
The difference in height of cloth composition, outermost syringe needle and middle position syringe needle is 12cm, and syringe needle spacing 15mm, middle position syringe needle is positioned at most
Low spot, two sides syringe needle symmetry arrangement.
The upper cover plate 1 is equipped with 2 inlet openings, is connect by hose with liquid feed device, guarantees the controllable fixed of spinning solution
Amount supply, uniformly flows into needle array 8.
The syringe needle mounting plate 2 is hierarchic structure, and ladder height difference and corresponding position needle height difference are consistent, each ladder
It is equipped with the boss with needle array corresponding position, boss height 3mm is interference fitted with 8 inner hole of stainless steel dispensing needle head array.
It is arc groove inside syringe needle mounting plate 2, forms solution tank with upper cover plate 1, adequately buffer the flowing space, syringe needle to spinning solution
It is equipped with through-hole runner with 8 corresponding position of needle array on mounting plate 2, realizes each uniform feed flow of spinning syringe needle.
The conductive plate 4 is connected with high-voltage power cathode, provides space high-voltage electric field, is hierarchic structure, and ladder height is poor
It is consistent with corresponding position needle height difference, it is equipped with the through-hole of diameter 2mm in syringe needle corresponding position, guarantees upper surface and stainless steel point
The frusto-conical portion of plastic pin head array 8 is steadily contacted, and each syringe needle can good conductive.
The support plate 5 cooperates with conductive plate, is equipped with 2mm through-hole structure, is coaxially distributed with the hole on conductive plate, is convenient for needle
The installation and fixation of head avoid that the problems such as syringe needle falls off or is conductive bad occurs.
The gas hood 7 is set there are two air inlet, is connected by gas-guide tube with feeder, and pressure regulator valve control gas stream is utilized
The size of amount and pressure.Bottom surface is cambered surface, and design has coaxial stomata corresponding with 8 position of needle array, coaxial hole diameter
1mm, syringe needle stretch out gas hood 1mm.Gas is assisted to flow into from air inlet, from each coaxial stomata after the buffer function of airslide
Uniformly outflow constrains fluidic vectoring thrust sheath gas and stretches.
Fig. 2 show the top view of gas hood 7, and both ends are equipped with mounting-positioning holes, utilize outer locking screw 3 and upper cover plate 1, needle
Head mounting plate 2 is fixedly connected.The design of 7 bottom end of gas hood has coaxial stomata corresponding with 8 position of needle array, coaxial hole diameter
1mm.Auxiliary gas is uniformly flowed out from each coaxial stomata, is constrained fluidic vectoring thrust sheath gas and is stretched, can refine jet stream and fiber
Diameter reduces electrostatic interference, improves jet stream jetting stability and quality of forming film.
Fig. 3 show the top view of conductive plate 4, and both ends are equipped with mounting-positioning holes, is installed using internal locking screw 6 and syringe needle
Plate 2, support plate 5 are fixedly connected.Conductive plate 4 is equipped with coaxial through-hole corresponding with 8 position of needle array, coaxial through-hole diameter
The frusto-conical portion of 2mm, upper surface and stainless steel dispensing needle head array 8 is steadily contacted, and each syringe needle can good conductive.Conductive plate
4 are connected by conducting wire with high-voltage power cathode, and high voltage electric field is formed between spray head and collecting board, and spinning solution occurs to stretch shape
Become, jet stream is generated, so that fast deposition obtains nano fibrous membrane on collecting board.
In use, spinning solution flows through inlet by hose by liquid feed device and realizes to each spinning the present embodiment
The uniform feed flow of silk syringe needle, high-voltage power cathode are connected by conducting wire with conductive plate, carry out stable power-supplying to each syringe needle, thus
High voltage electric field is formed between spray head and collecting board, forms more jet stream high density injections.Secondary air is supplied by feeder, benefit
Gas flow and pressure size are controlled with pressure regulator valve, enters airslide from the air inlet of gas hood, from each after buffer function
Stomata uniformly flows out, and plays constraint and stretching action to jet stream.According to actual needs, syringe needle quantity, syringe needle spacing, needle point radian
Size etc. can be adjusted, and promote large area, the fast deposition of uniform electro spinning nanometer fiber membrane.
Needle array of the invention uses arc arrangement mode, can effectively reduce the electric jamming in more jet stream course of injection
Inhibiting effect improves more jet stream jetting stabilities.The constraint of sheath gas is introduced, accelerates spinning jet using the drawing force of secondary air and sprays
It penetrates, improves fiber jet efficiency, reduce nanofiber diameter, help to improve electrospinning fibre into film uniformity.About with sheath gas
The more jet flow static electricity spinning nozzles of the arcuate array of beam can overcome the interference of the electric field in more jet stream course of injection to inhibit, and promote big face
The efficient molding of long-pending, uniform electro spinning nanometer fiber membrane.
Claims (10)
1. it is a kind of with sheath gas constraint arcuate array electrostatic spinning nozzle, it is characterised in that be equipped with upper cover plate, syringe needle mounting plate,
Conductive plate, support plate, needle array and gas hood；
The upper cover plate is equipped with inlet opening, and upper cover plate is connect by hose with liquid feed device, guarantees the controllable ration of spinning solution
Supply, uniformly flows into each spinning syringe needle；
The syringe needle mounting plate is hierarchic structure, and the difference in height of hierarchic structure is consistent with the difference in height of corresponding position syringe needle, each
Ladder is equipped with the boss with needle array corresponding position, and it is arc inside syringe needle mounting plate that boss and syringe needle inner hole, which are interference fitted,
Shape slot, arc groove and upper cover plate form solution tank, adequately buffer the flowing space to spinning solution, on syringe needle mounting plate with syringe needle
Array corresponding position is equipped with through-hole runner, for realizing each uniform feed flow of spinning syringe needle；
The conductive plate is connected with high-voltage power cathode, and for providing space high-voltage electric field, conductive plate is hierarchic structure, and ladder is high
Degree difference is consistent with corresponding position needle height difference, is equipped with conductive plate through-hole in syringe needle corresponding position, guarantees upper surface and syringe needle
Frusto-conical portion is steadily contacted, and each syringe needle can good conductive；
The support plate and conductive plate cooperate, and support plate is equipped with support plate through-hole, and the big coaxial distribution such as hole on conductive plate, just
In the installation and fixation of syringe needle；
The needle array is equipped with the syringe needle by arcuate array arrangement, and the syringe needle in needle array middle position is located at minimum point, needle
The two sides syringe needle symmetry arrangement of head array；
The gas hood is set there are two air inlet, and gas hood is connected by gas-guide tube with feeder, controls gas stream using pressure regulator valve
The size of amount and pressure, the bottom surface of gas hood are cambered surface, and the bottom surface of gas hood is equipped with coaxial stomata corresponding with needle position, and syringe needle is stretched
1~3mm of air leaving cover, auxiliary gas is flowed into from air inlet, from each coaxial stomata after the buffer function of the airslide of gas hood
Uniformly outflow constrains fluidic vectoring thrust sheath gas and stretches.
2. as described in claim 1 it is a kind of with sheath gas constraint arcuate array electrostatic spinning nozzle, it is characterised in that it is described into
Fluid apertures is equipped with 2~4.
3. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that the needle
Head uses 7~15 stainless steel dispensing needle heads, and difference in height is that 0~8mm is differed between syringe needle, and syringe needle spacing is 5~20mm.
4. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that described convex
The height of platform is 2~4mm.
5. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that described to lead
The diameter of battery plate through-hole is 1~3mm.
6. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that the branch
The diameter of fagging through-hole is 1~3mm.
7. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that the needle
Head mounting plate is equipped with threaded hole, and syringe needle mounting plate, conductive plate, support plate are fixedly connected by lock-screw.
8. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that described same
The diameter of axis stomata is 1~2mm.
9. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that on described
Cover board is equipped with threaded hole, and upper cover plate, syringe needle mounting plate, gas hood are fixedly connected by lock-screw.
10. a kind of arcuate array electrostatic spinning nozzle with the constraint of sheath gas as described in claim 1, it is characterised in that described to lead
Battery plate is processed by metal material processing, the upper cover plate, syringe needle mounting plate, support plate, gas hood by insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315128.1A CN109267160B (en) | 2018-11-06 | 2018-11-06 | Arc array electrostatic spinning nozzle with sheath gas restraint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315128.1A CN109267160B (en) | 2018-11-06 | 2018-11-06 | Arc array electrostatic spinning nozzle with sheath gas restraint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109267160A true CN109267160A (en) | 2019-01-25 |
| CN109267160B CN109267160B (en) | 2019-12-27 |
Family
ID=65191458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315128.1A Active CN109267160B (en) | 2018-11-06 | 2018-11-06 | Arc array electrostatic spinning nozzle with sheath gas restraint |
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| CN (1) | CN109267160B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670156A (en) * | 2019-09-26 | 2020-01-10 | 佛山轻子精密测控技术有限公司 | Needle tip induction electrostatic spinning nozzle and needle tip induction electrostatic spinning device |
| CN114318555A (en) * | 2021-11-24 | 2022-04-12 | 江苏飙鲛新材料科技有限公司 | Multi-micropore spray head for electrostatic spinning |
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| CN202595358U (en) * | 2012-05-31 | 2012-12-12 | 苏州大学 | Electrostatic spinning device |
| JP2013124426A (en) * | 2011-12-14 | 2013-06-24 | Mecc Co Ltd | Spinneret for producing nanofiber |
| CN103628150A (en) * | 2013-12-05 | 2014-03-12 | 厦门大学 | Multi-spray-head electrostatic spinning device |
| CN203960405U (en) * | 2014-07-03 | 2014-11-26 | 福建省贝思达环保投资有限公司 | A kind of seedpod of the lotus electrospinning shower nozzle |
| CN203976987U (en) * | 2014-08-11 | 2014-12-03 | 厦门大学 | The even air feed flow passage structure of a kind of sheath layer air-flow |
| CN206015157U (en) * | 2016-09-07 | 2017-03-15 | 厦门大学 | A kind of many fluid jet nozzles of the coaxial electrically spun for preparing composite cellulosic membrane |
-
2018
- 2018-11-06 CN CN201811315128.1A patent/CN109267160B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013124426A (en) * | 2011-12-14 | 2013-06-24 | Mecc Co Ltd | Spinneret for producing nanofiber |
| CN202595358U (en) * | 2012-05-31 | 2012-12-12 | 苏州大学 | Electrostatic spinning device |
| CN103628150A (en) * | 2013-12-05 | 2014-03-12 | 厦门大学 | Multi-spray-head electrostatic spinning device |
| CN203960405U (en) * | 2014-07-03 | 2014-11-26 | 福建省贝思达环保投资有限公司 | A kind of seedpod of the lotus electrospinning shower nozzle |
| CN203976987U (en) * | 2014-08-11 | 2014-12-03 | 厦门大学 | The even air feed flow passage structure of a kind of sheath layer air-flow |
| CN206015157U (en) * | 2016-09-07 | 2017-03-15 | 厦门大学 | A kind of many fluid jet nozzles of the coaxial electrically spun for preparing composite cellulosic membrane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670156A (en) * | 2019-09-26 | 2020-01-10 | 佛山轻子精密测控技术有限公司 | Needle tip induction electrostatic spinning nozzle and needle tip induction electrostatic spinning device |
| CN114318555A (en) * | 2021-11-24 | 2022-04-12 | 江苏飙鲛新材料科技有限公司 | Multi-micropore spray head for electrostatic spinning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109267160B (en) | 2019-12-27 |
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Effective date of registration: 20221213 Address after: 362600 Part A, No. 04, Office, Floor 5, Times Square, Taocheng Town East Street, Yongchun County, Quanzhou City, Fujian Province Patentee after: Quanzhou Hengyi Enterprise Service Co.,Ltd. Address before: Xiamen City, Fujian Province, 361005 South Siming Road No. 422 Patentee before: XIAMEN University |
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Effective date of registration: 20230531 Address after: Room 205-2, Kehui Building, No. 3 Zengcuo'an North Road, Software Park Phase I, Xiamen Torch High tech Zone, Xiamen, Fujian Province, 361000 Patentee after: Xiamen Dinghuili Education Technology Co.,Ltd. Address before: 362600 Part A, No. 04, Office, Floor 5, Times Square, Taocheng Town East Street, Yongchun County, Quanzhou City, Fujian Province Patentee before: Quanzhou Hengyi Enterprise Service Co.,Ltd. |
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