CN106480516A - Rotation Multi-tip electrostatic spinning apparatus - Google Patents
Rotation Multi-tip electrostatic spinning apparatus Download PDFInfo
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- CN106480516A CN106480516A CN201510524884.5A CN201510524884A CN106480516A CN 106480516 A CN106480516 A CN 106480516A CN 201510524884 A CN201510524884 A CN 201510524884A CN 106480516 A CN106480516 A CN 106480516A
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- needle point
- electrostatic spinning
- sleeve
- liquid bath
- point group
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Abstract
The invention discloses a kind of batch electrostatic spinning apparatus of liquid of quenching with Multi-tip group pattern, rotation, being simultaneously provided with roller set and collecting cloth carries out the batch collection of nanofiber.It is provided with needle point group, sleeve, battery lead plate, support, rotating shaft, shaft coupling A, direct current generator, liquid bath, back flow plate, catheter, solution feed pump, conveying roller, collects cloth, saddle, arc, hold-down roller, collecting drum, shaft coupling B, running roller motor, high voltage power supply, infrared sensor and master control borad.Electrostatic spinning is carried out by introducing needle point and overcomes solution backflow phenomenon and spray nozzle clogging, so as to reducing the critical startup voltage of spinning and improve the stability of spinning cone-jet；Electrostatic spinning is carried out by Multi-tip group pattern and is used as collection device with reference to roller set and collection cloth, realize mass manufacture and the collection of uniform nonwoven cloth of nanofiber；The uniformity that feed flow can realize solution supply is carried out by way of Multi-tip group is rotated in liquid bath liquid of quenching, so as to improve the uniformity of collected nanofiber diameter.
Description
Technical field
The present invention relates to a kind of device of electrostatic spinning, particularly a kind of electrostatic spinning apparatus of the large area, the spinning of many jets and collection with many spinnerets head array.
Background technology
Electrostatic spinning is a kind of new technique that simply can carry out producing nanofiber, development recently as nanosecond science and technology, the sufficient research that electrostatic spinning technique is also obtained, has been widely used the field of bioengineering, filtering material, chemical catalysis and flexible electronic.Electrostatic spinning mainly borrows external electric field makes solution surface polarization produce surface charge, surface charge stretches solution in the presence of electric field and forms taylor cone, the effect for continuing high electric fields can produce jet from taylor cone tip, the jet dynamic refinement of whip in space, finally deposit to dielectric surface and form orderly or unordered nanofiber, the stock size of fiber up to micro-nano rank, with high specific surface area.Traditional electrostatic spinning apparatus are mainly using injection needle or capillary as nozzle, and drop meniscus is formed under the extruding of syringe pump, main cause is that they have high draw ratio and preferably the electric-field intensity at nozzle can be made larger by focusing electric field, so that meniscus is produced rheology and spray to form jet；The equipment simplified required for electrostatic spinning of electrostatic spinning is made using similar capillary and injection needle as nozzle, but while have also been introduced the problem of spray nozzle clogging, as electrostatic spinning nozzle inside diameter is typically in hundred micron levels, once the bad process of blocking, especially can have a strong impact on the behavior of many jets injection and the uniformity of nanofiber when the needle nozzle of array is introduced for high-volume electrostatic spinning；Meanwhile, there is one to common disadvantage is that at nozzle using the nozzle of capillary type and solution backflow phenomenon inside hanging drop, is had, unstable solution backflow phenomenon can affect the stability of Static Spinning screw tap-jet model.In addition, feed flow speed is very big on the diameter impact of electrostatic spinning production nanofiber, general multiinjector electrostatic spinning apparatus are difficult to accomplish the uniformity of multiinjector feed flow that the runner design for carrying out detailed complexity can be accomplished still to make whole equipment cost and complexity all improve.The invention discloses a kind of batch electrostatic spinning apparatus of liquid of quenching with Multi-tip group pattern, rotation, being simultaneously provided with roller set and collecting cloth carries out the batch collection of nanofiber.Electrostatic spinning is carried out by introducing needle point and overcomes solution backflow phenomenon and spray nozzle clogging, so as to reducing the critical startup voltage of spinning and improve the stability of spinning cone-jet；Electrostatic spinning is carried out by Multi-tip group pattern and is used as collection device with reference to roller set and collection cloth, realize mass manufacture and the collection of uniform nonwoven cloth of nanofiber；The uniformity that feed flow can realize solution supply is carried out by way of Multi-tip group is rotated in liquid bath liquid of quenching, so as to improve the uniformity of collected nanofiber diameter.
Content of the invention
The present invention is intended to provide a kind of batch electrostatic spinning apparatus with Multi-tip group pattern, rotary liquid of quenching, be simultaneously provided with roller set and cloth is collected as collection device, overcome spray nozzle clogging phenomenon and realize the uniformity of nozzle shunting, improve the simplicity of device operation, carry out the yield that the spinning of many jet flow static electricities increases substantially spinning, the critical startup voltage for reducing spinning and the stability that improve spinning cone-jet, improve the uniformity of collected nanofiber diameter and distribution.
The present invention is provided with needle point group, sleeve, battery lead plate, support, rotating shaft, shaft coupling A, direct current generator, liquid bath, back flow plate, catheter, solution feed pump, conveying roller, collects cloth, saddle, arc, hold-down roller, collecting drum, shaft coupling B, running roller motor, high voltage power supply, infrared sensor and master control borad, wherein needle point group, arc are that good conductive material is processed into, respectively as nozzle and earth polar；Sleeve, support, rotating shaft, liquid bath, back flow plate and saddle are insulating materials and are processed into.Needle point group is multiple needle points composition arranged in a straight line, and linear array needle point quantity can be 10 ~ 100, and needle point group is fixedly connected with sleeve, and needle point protrudes excircle of sleeve surface as nozzle, protrudes 1 ~ 10mm of length, and needle point main diameter is 200um ~ 1mm；Tip end is taper, and center cone angle is 30 ° ~ 45 °, and needle point group circle distribution on sleeve can set needle point group pattern quantity as 6 ~ 36 groups, and forming many jets of multiinjector generation by needle point group pattern carries out batch electrostatic spinning.Battery lead plate is connected with sleeve one end fits, with supply line on battery lead plate, it is connected with array needle point group respectively, it is mutually isolated between the supply line of each needle point group, battery lead plate is drawn bus and is connected with the on-off circuit one end on master control borad, the on-off circuit other end is connected with high-voltage power cathode, realizes the independent control that needle point group is powered.The sleeve other end, rotating shaft, shaft coupling and direct current generator are linked in sequence, by DC motor Driver sleeve so as to realize the rotary motion of needle point group pattern.
Liquid bath set by the present invention is located at below needle point nozzle, spinning solution is housed in liquid bath, liquid bath is positioned at needle point certain distance and adjustable, make 0.5 times of the of length no more than pin length of needle point immersion solution, not less than 0.25 times of pin length, drive pinpoint array rotation to quench in turn the spinning solution that takes in liquid bath by sleeve rotating, realize the supply of solution, and the amount of solution between the mode that takes of quenching can make each needle point nozzle is more balanced, so can guarantee that the uniformity of solution shunt.Needle point nozzle is quenched the solution for taking under the centrifugal action of rotary motion, is flowed toward at the cone point of needle point, while applying high pressure, forms taylor cone so as to produce jet injection in conjunction with the sophisticated place that acts on of electric field force.Back flow plate is connected with liquid bath, and back flow plate is 15 ° ~ 30 ° with vertical direction angle, and the effect of back flow plate is to prevent occurring solution to throw away phenomenon under the action of the centrifugal force, and the solution for throwing away can be made to be back to liquid bath.Solution feed pump is connected with liquid bath by catheter, and output spinning solution, can timely make-up solution when needle point group pattern is persistently quenched and takes solution-polymerized SBR to liquid bath；Infrared sensor is provided with above liquid bath, infrared sensor is connected with master control borad, the solution height information of feedback liquid bath, in conjunction with solution supplementary function of the solution feed pump to liquid bath, make the solution in liquid bath maintain certain height all the time, the amount of solution taken so as to can guarantee that needle point to quench every time, improves the uniformity that modus ponens of quenching divides liquid.
Saddle set by the present invention is located at directly over needle point group pattern, is designed with support column on saddle, and arc is fixed on the support column, and arc is used as earth polar；Arc guide rail is designed with saddle, arc guide rail has the identical center of circle and arranged concentric with sleeve, cloth both sides are collected with guide rail contact and move along guide rail, zone line is nanofibres deposit region, consistent all the time so as to the die opening of the rotary motion electrostatic spinning with needle point group pattern, improve the uniformity of this device spinning.Collecting drum is by shaft coupling B and running roller motor connection, effect is wound around deposited the collection cloth of nanofiber, hold-down roller effect makes appropriate compression collect cloth, a large amount of collection cloth are wound with conveying roller, being rotated by running roller Motor drive collecting drum, rolling around collecting cloth and driving collection cloth to move along the arc guide rail of saddle, while nanofiber is continual depositing to collection cloth, conveying roller is driven so as to persistently convey collection cloth, realizes the batch collection of nanofiber.
Master control borad set by the present invention is electrically connected with high voltage power supply, battery lead plate, direct current generator, running roller motor, infrared sensor and solution feed pump respectively；When whole device works, control program is pre-entered in main control chip, by master control borad while coordinating each device cooperating.It is to drive direct current generator to drive needle point group pattern to rotate the spinning solution taken in liquid bath of quenching first, when needle point group rotates through back flow plate, while under the action of the centrifugal solution motion to needle point cone point, now master control borad opens the switch for changing needle point group, high-tension electricity is applied to the needle point group by battery lead plate, producing jet carries out spinning in arc area, next group of needle point group comes to carry out spinning through same process then rotary motion, continual the quenching of the needle point group of array takes solution, and rotary motion is to arc area spinning；While the height of set infrared sensor Real-time Feedback liquid bath spinning solution is to master control borad, master control borad adjusts the feed flow speed of solution feed pump, makes the solution in liquid bath maintain sustained height all the time.While master control borad drive roller wheel motor is with certain rotating speed rotary motion, drives collection cloth slowly to move, the nanofiber of the continual depositing dosed quantities of collection cloth is made, is then around to collecting drum.The present invention carries out batch electrostatic spinning by Multi-tip group pattern, improves nanofiber yield；Quenched by the rotation of needle point group pattern and take solution-type, improve the uniformity of point liquid, so as to the uniformity of collected nanofiber diameter is improved, solution backflow phenomenon and spray nozzle clogging is overcome, so as to reducing the critical startup voltage of spinning and improve the stability of spinning cone-jet；The batch for Electrospun nano-fibers being carried out by roller set and collection cloth is continuously collected, and improves the uniformity of nanofiber distribution.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is assembly of the invention schematic diagram.
Fig. 2 is present invention rotation needle point operating diagram.
Fig. 3 is collecting drum operating diagram of the present invention.
Fig. 4 is cage structure schematic diagram of the present invention.
1. needle point group of in figure, 2. sleeve, 3. battery lead plate, 4. support, 5. rotating shaft, 6. shaft coupling A, 7. direct current generator, 8. liquid bath, 9. back flow plate, 10. catheter, 11. solution feed pumps, 12. conveying rollers, 13. collect cloth, 14. saddles, 15. arcs, 16. hold-down rollers, 17. collecting drums, 18. shaft coupling B, 19. running roller motors, 20. high voltage power supplies, 21. infrared sensors, 22. master control borads.
Specific embodiment
In FIG, needle point group（1）With sleeve（2）It is fixedly connected, needle point protrudes sleeve（2）Outer round surface is used as nozzle, needle point group（1）6 groups of even circumferentials are had in sleeve（2）On；Battery lead plate（3）With sleeve（2）One end fits connect, battery lead plate（3）On be designed with supply line, respectively with 6 groups of needle point groups（1）Connection, every group of circuit are mutually isolated；Battery lead plate（3）On be designed with lead line and master control borad（22）Connection, realizes different needle point groups（1）Between independently-powered；Liquid bath（8）It is located at sleeve（2）Underface, equipped with spinning solution, liquid bath（22）Both sides are equipped with back flow plate（9）, direct current generator（7）Band moving sleeve（2）During rotation, needle point group（1）Array will be in turn from liquid bath（8）In quench and take solution, and back flow plate（9）The spinning solution for sputtering out can be made to be back to liquid bath（8）；Solution feed pump（11）By catheter with（10）Liquid bath（8）Connection supply spinning solution.Infrared sensor（21）It is installed on liquid bath（8）Top, with master control borad（22）Connection, monitors liquid bath at any time（8）In solution height and feed back to master control borad（22）.Saddle（14）It is installed on liquid bath（8）Surface, saddle（14）On be designed with support column, arc（15）It is installed on above, saddle（14）, arc（15）All and sleeve（2）Place with one heart, arc（2）Reliable ground；Conveying roller（12）Positioned at saddle（14）The right, hold-down roller（16）And collecting drum（17）Positioned at saddle（14）Left end, and conveying roller（12）On be wound with and a large amount of collect cloth（13）, collect cloth（13）Both sides are positioned over saddle（14）Arc guide rail on, by collecting drum（17）Rotary motion make collection cloth along saddle（14）Arc guide rail motion, by hold-down roller（16）Be cloth to be collected in exceptionally straight state, nanofibres deposit can be made more uniform.Master control borad（22）Respectively with high voltage power supply（20）, battery lead plate（3）, direct current generator（7）, running roller motor（19）, infrared sensor（21）And solution feed pump（11）Electrical connection；When whole device works, control program is pre-entered in main control chip, by master control borad（22）While coordinating each device cooperating.It is to drive direct current generator first（7）Drive needle point group（1）Array rotation is quenched and takes liquid bath（8）In spinning solution, treat needle point group（1）Rotate through back flow plate（9）When, at the same under the action of the centrifugal solution motion to needle point cone point, now master control borad（22）Open and high voltage power supply（20）The switch of the on-off circuit of connection, high-tension electricity pass through battery lead plate（3）Apply to the needle point group（1）, producing jet carries out spinning, next group of needle point group in arc area（1）Come to carry out spinning, the needle point group of array through same process then rotary motion（1）Continual quenching takes solution, and rotary motion is to arc area spinning；While set infrared sensor（21）The height of Real-time Feedback liquid bath spinning solution is to master control borad（22）, master control borad（22）Adjustment solution feed pump（11）Feed flow speed, make liquid bath（8）In solution maintain sustained height all the time.While master control borad（22）Drive roller wheel motor（19）With certain rotating speed rotary motion, drive and collect cloth（13）Slow motion, makes collection cloth（13）The nanofiber of continual depositing dosed quantities, is then around to collecting drum（17）.
Sleeve in fig. 2（2）The other end and rotating shaft（5）Connection, rotating shaft（5）By shaft coupling A（6）With direct current generator（7）Connection, direct current generator（7）With master control borad（22）Electrical connection, so as to direct current generator（7）Can be in master control borad（22）Control lower band moving sleeve（2）Rotate；Needle point group（1）It is made up of 10 pinpoint array.
Collecting drum in figure 3（17）By shaft coupling B（18）With running roller motor（19）Connection, so as to realize rotating collection motion；Collecting drum（17）Wound by rotary motion and collect cloth（13）.
Saddle in the diagram（14）On have 4 support columns, be designed with arc guide rail, between arc guide rail be Electrospun nano-fibers deposition region.
Claims (8)
1. one kind rotates Multi-tip electrostatic spinning apparatus, the connected mode of needle point group, sleeve, battery lead plate, support, rotating shaft, shaft coupling A, direct current generator, liquid bath, back flow plate, catheter, solution feed pump, conveying roller, collection cloth, saddle, arc, hold-down roller, collecting drum, shaft coupling B, running roller motor, high voltage power supply, infrared sensor and master control borad, is characterized in that：Described needle point group pattern is distributed on sleeve and is fixedly connected, and needle point protrudes excircle of sleeve as nozzle；Sleeve one end is connected with motor electrode plate, and battery lead plate is provided with lead line and is connected with the on-off circuit on master control borad, and the on-off circuit other end connects high-voltage power cathode, high voltage power supply minus earth；The sleeve other end is connected with direct current generator by shaft coupling A；Described liquid bath is installed on immediately below sleeve, and both sides are equipped with back flow plate；Above infrared sensor installation and liquid bath；Solution feed pump is connected with liquid bath by catheter；Described saddle is designed with support column, and arc is mounted above and is grounded；Conveying roller is wound with a large amount of collection cloth, and on the right of saddle, collecting drum is located at the saddle left side with hold-down roller, and hold-down roller effect makes compression collect cloth tightens which；Collecting drum is by shaft coupling B and running roller motor connection；Collect cloth to be exported by conveying roller, by the arc guide rail on saddle and hold-down roller, be connected with collecting drum；Described master control borad is electrically connected with high voltage power supply, battery lead plate, direct current generator, running roller motor, infrared sensor and solution feed pump respectively, coordinates whole device operation.
2. one kind according to claim 1 rotates Multi-tip electrostatic spinning apparatus, it is characterised in that its feature is 200 m ~ 1mm in the main diameter in needle point；Tip end is taper, and the center cone angle of taper is 30 ° ~ 45 °.
3. one kind according to claim 1 rotates Multi-tip electrostatic spinning apparatus, it is characterised in that needle point group is made up of multiple needle point linear arrays, and the needle point quantity of linear array can be 10 ~ 100, and it can be 1 ~ 10mm that needle point group protrudes the length of excircle of sleeve.
4. one kind according to claim 1 rotates Multi-tip electrostatic spinning apparatus, it is characterised in that needle point group is circumferentially distributed on sleeve, and the array quantity of needle point group can be 6 ~ 36 groups.
5. one kind according to claim 1 rotates Multi-tip electrostatic spinning apparatus, it is characterised in that the back flow plate connected with liquid bath can be 15 ° ~ 30 ° with vertical direction angle.
6. according to claim 1 rotation Multi-tip electrostatic spinning apparatus, it is characterised in that with supply line on battery lead plate, be connected with array needle point group respectively, the supply line of each needle point group is mutually isolated.
7. a kind of rotation Multi-tip electrostatic spinning apparatus according to claim 1, it is characterised in that liquid bath is located at sleeve distance below and adjustable, makes needle point immersion solution length be less than 0.5 times of pin length, not less than 0.25 times of pin length.
8. one kind according to claim 1 rotates Multi-tip electrostatic spinning apparatus, it is characterised in that the arc guide rail on arc, saddle has the identical center of circle and concentric installation with sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524884.5A CN106480516A (en) | 2015-08-25 | 2015-08-25 | Rotation Multi-tip electrostatic spinning apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524884.5A CN106480516A (en) | 2015-08-25 | 2015-08-25 | Rotation Multi-tip electrostatic spinning apparatus |
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| CN106480516A true CN106480516A (en) | 2017-03-08 |
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| CN201510524884.5A Pending CN106480516A (en) | 2015-08-25 | 2015-08-25 | Rotation Multi-tip electrostatic spinning apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536183A (en) * | 2018-02-08 | 2018-09-14 | 广东工业大学 | Spray printing distance regulation method based near field electrospinning spray printing Multi needle array experiment |
| CN112430858A (en) * | 2020-11-11 | 2021-03-02 | 青岛大学 | Electrostatic spinning equipment |
| CN114277458A (en) * | 2021-12-31 | 2022-04-05 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and use method thereof |
| CN114540963A (en) * | 2020-11-26 | 2022-05-27 | 季华实验室 | Industrialized electrostatic spinning collection device |
-
2015
- 2015-08-25 CN CN201510524884.5A patent/CN106480516A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536183A (en) * | 2018-02-08 | 2018-09-14 | 广东工业大学 | Spray printing distance regulation method based near field electrospinning spray printing Multi needle array experiment |
| CN108536183B (en) * | 2018-02-08 | 2021-08-24 | 广东工业大学 | Spray printing distance regulation and control method based on near-field electrospinning spray printing multi-needle array experiment |
| CN112430858A (en) * | 2020-11-11 | 2021-03-02 | 青岛大学 | Electrostatic spinning equipment |
| CN112430858B (en) * | 2020-11-11 | 2022-06-24 | 上海胜启纳米科技中心 | Electrostatic spinning equipment |
| CN114540963A (en) * | 2020-11-26 | 2022-05-27 | 季华实验室 | Industrialized electrostatic spinning collection device |
| CN114277458A (en) * | 2021-12-31 | 2022-04-05 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and use method thereof |
| CN114277458B (en) * | 2021-12-31 | 2022-12-09 | 武汉纺织大学 | Accumulation-free centrifugal spinning device and using method thereof |
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Application publication date: 20170308 |