CN112301439A - Nanofiber electrostatic spinning equipment - Google Patents
Nanofiber electrostatic spinning equipment Download PDFInfo
- Publication number
- CN112301439A CN112301439A CN202011306374.8A CN202011306374A CN112301439A CN 112301439 A CN112301439 A CN 112301439A CN 202011306374 A CN202011306374 A CN 202011306374A CN 112301439 A CN112301439 A CN 112301439A
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- Prior art keywords
- spinning
- adjusting device
- lower electrode
- adjusting
- electrostatic
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 35
- 238000010041 electrostatic spinning Methods 0.000 title claims abstract description 23
- 238000009987 spinning Methods 0.000 claims abstract description 115
- 230000005686 electrostatic field Effects 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000001523 electrospinning Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000002572 peristaltic effect Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
-
- 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
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention provides nanofiber electrostatic spinning equipment which comprises an electrostatic field generating device (100), a spinning device (200), a spinning solution supply device (300), a spinning member adjusting device (400) and a collecting device (500). The spinning equipment can realize the simultaneous nano electrostatic spinning in a plurality of electrostatic fields, can adjust the intensity of the electrostatic fields according to the requirements and the like, and can greatly improve the spinning efficiency.
Description
Technical Field
The invention relates to nanofiber electrostatic spinning equipment, and belongs to the field of electrostatic spinning.
Background
Nanofibers are a new type of fibrous material, and their excellent properties and potential applications have attracted attention in various fields. In recent years, with the rapid development of nano material technology, nano fiber technology has become the leading edge of fiber science and the research hot spot. At present, the main methods for preparing the nano-fiber include a drawing method, a template method, a self-assembly method and an electrostatic spinning method. Electrostatic spinning, i.e. a polymer jet electrostatic drawing spinning method, is an important method for preparing superfine fibers.
The electrostatic spinning is used as a method for preparing the nano-fiber, and has the characteristics of simplicity, low cost, controllable fiber shape and the like. Compared with the traditional spinning mode, the electrostatic spinning has the greatest characteristic that the polymer spinning solution generates jet flow by utilizing a high-voltage electric field. During the process that the fiber reaches the receiving device after the jet flow, the solvent in the fiber is evaporated and solidified, and then the fiber-shaped substance is obtained. Compared with other technologies, the electrostatic spinning technology has the advantages of simple equipment, lower cost, strong operability and the like. With the rapid development stage of the electrostatic spinning technology research, the research of the electrostatic spinning device is stepped into the experimental device research stage, and the experimental electrostatic spinning device used for laboratories appears. However, most of the spraying devices in the existing electrostatic spinning devices are fixed, inconvenient to adjust, the height of the spray head and the like need to be adjusted manually, needle blockage and the like in the experimental process need to be checked manually, the experimental efficiency is influenced, and the preparation efficiency of the nano fibers is influenced due to the lack of a corresponding real-time monitoring link and an automatic adjusting system. In addition, in the electrostatic spinning process, the size generated by an electrostatic field is limited to a certain extent, and the spinning solution is supplied to a general injection needle cylinder, so that the nano electrostatic spinning efficiency is very low, and the requirements of the current production and research cannot be met at all.
Therefore, the development of a novel multifunctional electrospinning device is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides a novel multifunctional electrostatic spinning device, which solves the most important efficiency problem in nanofiber spinning.
In order to realize the purpose of the invention, the technical scheme of the invention is as follows:
the invention provides nanofiber electrostatic spinning equipment, which comprises an electrostatic field generating device (100), a spinning device (200), a spinning solution supplying device (300), a spinning member adjusting device (400) and a collecting device (500),
the electrostatic field generating device (100) comprises an adjustable high-voltage power supply (101), the adjustable high-voltage power supply (101) is connected to at least one spinning device (200), and the spinning device (200) is used for forming a vertical spinning electrostatic field area;
the spinning solution supply device (300) is used for coating the spinning solution on the lower electrode (202);
the spinning component adjusting device (400) is used for adjusting parameters such as an angle and a distance between the upper electrode (201) and the lower electrode (202)) to control the spinning effect;
the collecting device (500) is used for collecting the fiber filaments (600).
Further, when the adjustable high-voltage power supply (101) is in negative high voltage, the adjustable high-voltage power supply is connected to a lower electrode (202) of the spinning equipment; when the adjustable high-voltage power supply (101) is in positive high voltage, the adjustable high-voltage power supply is connected to an upper electrode (201) of the spinning equipment.
Further, the spinning device (200) comprises an upper electrode (201) and a lower electrode (202), wherein an included angle between the upper electrode (201) and the lower electrode (202) is 0-90 degrees.
Further, the spinning solution supply device (300) comprises a spinning solution application tank (304), a pump type spinning solution storage box (301) and a driving mechanism (302); wherein the pump type spinning solution storage box (301) is used for continuously supplying liquid into the spinning solution coating groove (304), and the spinning solution is uniformly coated on an upper electrode (201) and a lower electrode (202) of the spinning device (200) through a driving mechanism (302).
Further, the spinning member adjusting device (400) comprises a left adjusting device (402) and a right adjusting device (401).
Furthermore, a side adjusting device (4021) is arranged on the left adjusting device (402) and used for adjusting slight lateral deviation of the steel wire.
Furthermore, an up-down adjusting device (4011) is arranged on the right adjusting device (401) and used for adjusting the height of the steel wire.
Furthermore, a new steel wire coil is arranged on the left adjusting device (402), and the steel wire coil slides to a right pulley (4011) on the right adjusting device (401) through a left pulley (4023) and is finally connected to a waste steel wire coil (4012).
Further, the collecting device (500) comprises an unwinding roll (508), a motor (506) and a take-up roll (504), wherein
The unreeling device (508) is used for ensuring that the non-woven fabric roll (509) is always in a tensioned state;
the motor (506) is used for providing cloth collecting power;
the take-up roll (504) is used to collect the fibrous nonwoven fabric.
Further, the collecting device 500 further comprises a tensioning mechanism.
Compared with the prior art, the nanofiber electrostatic spinning equipment at least has the following beneficial effects: nanometer electrostatic spinning can be carried out simultaneously in a plurality of electrostatic fields, and electrostatic field intensity size etc. can be adjusted as required, spinning efficiency can greatly be improved.
Drawings
FIG. 1 is a schematic structural view of nanofiber electrospinning apparatus (with the outer shell removed) according to the present invention;
FIG. 2 is a side view of the nanofiber electrospinning apparatus of the present invention (with the housing removed);
FIG. 3 is a front view of the nanofiber electrospinning apparatus of the present invention (with the housing removed);
FIG. 4 is a schematic structural view of a spinning member adjustment apparatus 400 of the present invention;
FIG. 4A is an enlarged view of area A of FIG. 4;
FIG. 4B is an enlarged view of area B of FIG. 4;
FIG. 5 is a schematic view of a collection device 500 according to the present invention;
fig. 6 is a schematic view of the structure of the nanofiber electrospinning device (removing the outer shell) of the present invention in operation.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention.
As shown in fig. 1, the nanofiber electrospinning device of the present invention comprises an electrostatic field generating apparatus 100, a spinning device 200, a spinning solution supplying apparatus 300, a spinning member adjusting apparatus 400, and a collecting apparatus 500.
The electrostatic field generating device 100 includes adjustable high voltage power supplies 101, and the number of the adjustable high voltage power supplies can be 1-2. When the high-voltage power supply is negative high voltage, the high-voltage power supply is connected to a lower electrode 202 of the spinning equipment; when the high-voltage power supply is positive high voltage, the high-voltage power supply is connected to the upper electrode 201 of the spinning equipment, so that a stable electrostatic field can be provided for the nanofiber electrostatic spinning equipment. The present invention preferably uses two high voltage power supplies (one positive and one negative) simultaneously. The adjustable high-voltage power supply 101 is connected to the spinning device 200, and the spinning device 200 is used for forming a vertical spinning electrostatic field area; the spinning device 200 comprises electrodes which are parallel to each other in two planes, the number of the upper electrode 201 and the lower electrode 202 can be respectively 1-8 parallel steel wires, the included angle between the upper electrode 201 and the lower electrode 202 can be 0-90 degrees, and the upper electrode 201 and the lower electrode 202 are preferably respectively 8 steel wires. All upper electrodes 201 of the nanofiber electrospinning apparatus may be replaced by a block steel plate. The spinning device 200 is parallel to the plane of collecting nanofibers and will form a spinning zone, and the steel wire used for the electrode in the present invention and the steel wire in the steel wire coil are the same steel wire.
The spinning member adjusting device 400 can be used for adjusting parameters such as an angle and a distance between the upper electrode (201) and the lower electrode (202) to control the spinning effect, and the upper electrode 202 passes through the liquid tank of the spinning liquid supply device 300;
the spinning solution supply device 300 comprises a spinning solution storage box (301), a spinning solution coating groove (304) and a driving mechanism (302), wherein a peristaltic pump (not shown) is arranged in the spinning solution storage box (301) and is used for continuously supplying liquid to the spinning solution coating groove (304), and the driving mechanism controls the spinning solution coating groove to move back and forth in an electrostatic field in parallel with the lower electrode 202, so that the spinning solution is coated on the lower electrode 202 of the spinning device 200. The fibers are brought towards the spin upper member by the electrostatic field and fall onto a collecting device 500 located in the middle of the spinning device. The spinning solution is applied to the lower electrode (202) by the spinning solution supply device 300, and after the electrostatic field is formed, fibers are generated in the spinning solution in the electric field, and the fibers are brought to the upper electrode (201) and fall to the collecting device 500 in the middle of the spinning device 200. The spinning solution supply device 300 is controlled in its motion trajectory by a motion control means and moves in an electrostatic field formed between an upper electrode (201) and a lower electrode (202); a collecting device 500 is arranged at the top end of the spinning device.
As shown in fig. 2, the upper electrode 201 is positioned at the top end of the spinning space of the spinning device 200, and the lower electrode 202 is fixed to the left and right adjusting devices 402 and 401 of the spinning member adjusting device 400. The spinning solution supply device (300) comprises a spinning solution application tank 304, a pump-type spinning solution storage box 301 and a drive mechanism 302; the pump-type spinning solution storage tank 301 is used to continuously supply a liquid to the spinning solution application tank 304, and the spinning solution is uniformly applied to the lower electrode 202 of the spinning apparatus 200 by the driving mechanism 302. The spinning solution application tank 304 reciprocates on the lower electrode 202, the driving mechanism 302 drives the slide table 303, and the spinning solution application tank 304 is fixed to the slide table 303. When the driving mechanism 302 is driven, the dope solution tank 304 reciprocates on the lower electrode 202 of the spinning device 200, and the supply of the spinning solution to the electrostatic field is completed.
As shown in fig. 3, the driving mechanism 302 includes a motor 3021, a bearing and bearing seat 3022, an insulating driving rod 3023 and a belt pulley 3024, and the insulating driving rod 3023 can well isolate high voltage and prevent the motor 3021 from being damaged due to the high voltage.
As shown in fig. 4, two steel wires of the spinning device are required to be parallel in the spinning process, and the parallelism is required to be high. Therefore, the spinning apparatus is provided with a spinning member adjusting device 400, the spinning member adjusting device 400 can fix the lower electrode 202 of the spinning device 200, wherein a new steel wire coil (not shown) is arranged on the left adjusting device 402, the steel wire coil slides to the pulley 4011 of the right adjusting device 401 through the pulley 4023 and is finally connected to the waste steel wire coil 4012, and the used steel wire is collected by rotating the waste steel wire coil 4012. The left adjusting device 402 is provided with a side adjusting device 4021, the steel wire can be adjusted to slightly deviate on the side, the right adjusting device 401 is provided with an upper adjusting device 4011 and a lower adjusting device 4011, the height of the steel wire can be adjusted, and the steel wire can be ensured to be parallel to the upper steel wire (the steel wire can be horizontally positioned in a spinning space) through adjustment in two directions. The new steel wire coil can be used for coiling and uncoiling the steel wire, so that the steel wire can be conveniently replaced. The included angle of the steel wires is determined by the fixing mode of the spinning component adjusting device. The linear steel wire at the bottom end of the spinning device can be fixed on the spinning member adjusting device.
As shown in fig. 5, a nanofiber collecting device is provided at the top end of the spinning apparatus. The collecting device 500 comprises an unreeling device 508, which is generally fixed on the base 501 by a non-woven fabric roll 509 through a bearing 510, and a fastening screw 511 is arranged at one end of the bearing 510, so as to adjust the tension of the non-woven fabric roll 509 and ensure that the non-woven fabric roll 509 is always in a tensioned state. The collecting device 500 comprises a motor 506 providing the cloth collecting power. The rubber rod 502 is connected by a shaft coupling (not shown), the take-up roll 504 is placed on the rubber rod 502, and the take-up roll is driven by the friction force between the rubber rod 502 and the take-up roll 504. In some cases, the weight of the take-up roller 504 may be increased, and the take-up holder 503 is used to hold the take-up roller 504. The collecting device 500 is positioned in parallel between the two wires of the spinning device. A collection device 500 (a roll of nonwoven or other collection material) is driven by a motor at a constant velocity through the spinning zone to collect the nanofibers.
The whole spinning process of the nanofiber electrospinning device of the present invention is shown in fig. 6, and a nanofiber filament 600 is formed during the operation. The high voltage power supply 101 is connected to at least one spinning device 200, so that the spinning device 200 forms a vertical spinning electrostatic field region. The spinning solution supply device 300 moves back and forth in the electrostatic field in parallel with the lower electrode 202, so that the spinning solution is smeared on the lower electrode 202 of the spinning device 200. By the action of the electrostatic field, the nanofiber filaments 600 are brought towards the upper electrode (moving from 202 to 201) and fall onto the collecting device 500 located in the middle of the spinning device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electrostatic spinning apparatus for nanofibers, comprising an electrostatic field generating device (100), a spinning device (200), a spinning solution supplying device (300), a spinning member adjusting device (400), and a collecting device (500), wherein,
the electrostatic field generating device (100) comprises an adjustable high-voltage power supply (101), the adjustable high-voltage power supply (101) is connected to at least one spinning device (200), and the spinning device (200) is used for forming a vertical spinning electrostatic field area;
the spinning solution supply device (300) is used for coating the spinning solution on the lower electrode (202);
the spinning component adjusting device (400) is used for adjusting parameters such as an angle and a distance between the upper electrode (201) and the lower electrode (202) to control the spinning effect;
the collecting device (500) is used for collecting the fiber filaments (600).
2. The nanofiber electrospinning device of claim 1, wherein when the adjustable high voltage power supply (101) is at negative high voltage, it is connected to the upper electrode (201) of the spinning device; when the adjustable high-voltage power supply (101) is in positive high voltage, the adjustable high-voltage power supply is connected to a lower electrode (202) of the spinning equipment.
3. The nanofiber electrospinning device of claim 1, wherein the spinning device (200) comprises an upper electrode (201) and a lower electrode (202), wherein the included angle between the upper electrode (201) and the lower electrode (202) is 0-90 degrees.
4. The nanofiber electrospinning apparatus of claim 1, wherein the dope supply device (300) comprises a dope application tank (304), a dope storage tank (301), and a driving mechanism (302); wherein,
the spinning solution storage box (301) is internally provided with a peristaltic pump for continuously supplying liquid to the spinning solution coating groove (304), and the spinning solution is uniformly coated on an upper electrode (201) and a lower electrode (202) of the spinning device (200) through a driving mechanism (302).
5. The nanofiber electrospinning apparatus of claim 1, wherein the spinning member adjusting device (400) comprises a left adjusting device (402) and a right adjusting device (401).
6. The nanofiber electrospinning device of claim 5, wherein the left adjusting device (402) is provided with a side adjusting device (4021) for adjusting slight lateral deflection of the steel wires.
7. The nanofiber electrospinning device of claim 5, wherein the right adjusting device (401) is provided with an up-down adjusting device (4011) for adjusting the height of the steel wire.
8. The nanofiber electrospinning device of claim 5, wherein a new wire coil is provided on the left adjusting device (402), and the wire coil is slid onto the right pulley (4011) on the right adjusting device (401) through the left pulley (4023) and finally connected to the waste wire coil (4012).
9. The nanofiber electrospinning apparatus of claim 1, wherein the collecting device (500) comprises an unreeling roll (508), a motor (506), and a reeling roll (504), wherein
The unreeling device (508) is used for ensuring that the non-woven fabric roll (509) is always in a tensioned state;
the motor (506) is used for providing cloth collecting power;
the take-up roll (504) is used to collect the fibrous nonwoven fabric.
10. The nanofiber electrospinning apparatus of claim 9, wherein the collecting device 500 further comprises a tensioning mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306374.8A CN112301439A (en) | 2020-11-19 | 2020-11-19 | Nanofiber electrostatic spinning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306374.8A CN112301439A (en) | 2020-11-19 | 2020-11-19 | Nanofiber electrostatic spinning equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112301439A true CN112301439A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011306374.8A Pending CN112301439A (en) | 2020-11-19 | 2020-11-19 | Nanofiber electrostatic spinning equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568409A (en) * | 2016-01-29 | 2016-05-11 | 佛山轻子精密测控技术有限公司 | Method for preparing nanofibers through electrostatic spinning |
| CN105568408A (en) * | 2016-01-31 | 2016-05-11 | 武汉纺织大学 | Reciprocating linear guide rail type electrostatic spinning method |
| CN106012050A (en) * | 2016-07-15 | 2016-10-12 | 佛山轻子精密测控技术有限公司 | Electrostatic spinning device for preparing nanofibers in batches |
| CN108588864A (en) * | 2018-06-24 | 2018-09-28 | 安徽苏瑞智能科技有限公司 | A kind of electrostatic spinning apparatus including electrode roll |
| CN113981551A (en) * | 2020-07-27 | 2022-01-28 | 苏州苏英慧联智能科技有限公司 | Nanofiber electrostatic spinning equipment |
-
2020
- 2020-11-19 CN CN202011306374.8A patent/CN112301439A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568409A (en) * | 2016-01-29 | 2016-05-11 | 佛山轻子精密测控技术有限公司 | Method for preparing nanofibers through electrostatic spinning |
| CN105568408A (en) * | 2016-01-31 | 2016-05-11 | 武汉纺织大学 | Reciprocating linear guide rail type electrostatic spinning method |
| CN106012050A (en) * | 2016-07-15 | 2016-10-12 | 佛山轻子精密测控技术有限公司 | Electrostatic spinning device for preparing nanofibers in batches |
| CN108588864A (en) * | 2018-06-24 | 2018-09-28 | 安徽苏瑞智能科技有限公司 | A kind of electrostatic spinning apparatus including electrode roll |
| CN113981551A (en) * | 2020-07-27 | 2022-01-28 | 苏州苏英慧联智能科技有限公司 | Nanofiber electrostatic spinning equipment |
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