CN111270319A - Trapezoidal spherical multi-needle-head bubble spinning device and method - Google Patents
Trapezoidal spherical multi-needle-head bubble spinning device and method Download PDFInfo
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- CN111270319A CN111270319A CN202010239931.2A CN202010239931A CN111270319A CN 111270319 A CN111270319 A CN 111270319A CN 202010239931 A CN202010239931 A CN 202010239931A CN 111270319 A CN111270319 A CN 111270319A
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- 238000009987 spinning Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000003860 storage Methods 0.000 claims abstract description 62
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 230000005684 electric field Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 3
- 230000005686 electrostatic field Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010041 electrostatic spinning Methods 0.000 description 10
- 239000002121 nanofiber Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The application relates to a trapezoidal spherical multi-needle-head bubble spinning device and method, which comprises the following steps: the liquid storage tank is used for placing spinning solution; the air pump is used for conveying air into the liquid storage tank; the high-voltage power supply device is connected with the liquid storage tank; the conductive device is arranged above the liquid storage tank and forms a high-voltage electric field with the liquid storage tank; the receiving device is arranged on one side of the liquid storage tank to receive the prepared fibers and is connected with the high-voltage power supply device; in the height direction of the spinning device, the liquid storage tank is provided with a convex spherical top and a plurality of needles communicated with the inside of the liquid storage tank. Set the top through with the liquid storage tank to evagination sphere form, and the top is provided with a plurality of evenly distributed and orientation the syringe needle that the center slope of top set up for charge distribution on the syringe needle after the circular telegram is more concentrated, has improved the utilization ratio of electrostatic field power, reaches the effect of energy saving, makes more fibers be collected on receiving arrangement simultaneously, avoids the wasting of resources.
Description
Technical Field
The invention relates to a trapezoidal spherical multi-needle-head bubble spinning device and method, and belongs to the technical field of electrostatic spinning.
Background
The electrostatic spinning method is a spinning method for obtaining nano-scale fibers by spraying and stretching polymer solution or melt under the action of an electrostatic field. At present, as the basis of nano-fiber, electrostatic spinning fiber has become a hot point of application research. The electrostatic spinning nano-fiber has obvious advantages and is mainly reflected in the aspects of wide spinnable raw materials, adjustable structure, various shapes, large specific surface area of the fiber and the like. The electrostatic spinning equipment is simple, the technical operation is simple and convenient, but the traditional single-needle electrostatic spinning equipment has low spinning efficiency, and the batch production of the nano fibers is limited.
The novel bubble electrostatic spinning method is provided based on the spider spinning principle and the bubble dynamics principle. A large amount of bubbles are quickly generated on the free liquid surface, and the bubbles are broken to form a large amount of jet flow for spinning by means of external force (high voltage or strong airflow and other modes), so that the spinning speed can be improved, and the mass production of the nano fibers can be realized to a certain extent by bubble electrostatic spinning. However, the problems of uncontrollable bubble size, irresolvable bubble bursting rule, large and unstable jet angle exist in bubble electrostatic spinning, and the problems of uneven fiber diameter distribution, poor uniformity and orientation, difficult control of spinning conditions, raw material waste, pollution to the spinning environment and the like are caused, so that the application of the bubble electrostatic spinning in industrial production is limited.
Disclosure of Invention
The invention aims to provide a trapezoidal spherical multi-needle-head bubble spinning device and method, which can obtain fibers with uniform and stable diameter distribution and can save energy and resources.
In order to achieve the purpose, the invention provides the following technical scheme: a trapezoidal spherical multi-needle-head bubble spinning device comprises:
the liquid storage tank is used for placing spinning solution;
the air pump is connected with the liquid storage tank and used for conveying air into the liquid storage tank;
the high-voltage power supply device is connected with the liquid storage tank;
the conductive device is arranged above the liquid storage tank and forms a high-voltage electric field with the liquid storage tank;
the receiving device is arranged on one side of the liquid storage tank to receive the prepared fibers and is connected with the high-voltage power supply device;
in the height direction of the spinning device, the liquid storage tank is provided with a top part in a convex spherical surface shape, and the top part is provided with a plurality of needle heads communicated with the inside of the liquid storage tank.
Further, a plurality of the needles are evenly distributed and are obliquely arranged towards the center of the top.
Further, the cross section of the liquid storage tank is trapezoidal.
Furthermore, the liquid storage tank is made of metal.
Further, the conducting device comprises a conducting ring and a power supply connected with the conducting ring, and the conducting ring is arranged above the liquid storage tank.
Further, the diameter of the conductive ring is greater than or equal to the diameter of the top portion.
Furthermore, the anode of the power supply is connected with the conducting ring, and the cathode of the high-voltage power supply device is connected with the liquid storage tank.
Further, the trapezoidal spherical multi-needle-head bubble spinning device further comprises a liquid supply device connected with the liquid storage tank, and the liquid supply device is connected with the liquid storage tank through a liquid guide pipe.
The invention also provides a trapezoidal spherical multi-needle bubble spinning method, which adopts the trapezoidal spherical multi-needle bubble spinning device and comprises the following steps:
placing the spinning solution in a liquid storage tank, wherein the liquid level of the spinning solution is positioned in a needle head at the top;
opening a high-voltage power supply device and an air pump, and adjusting the air flow speed of the air pump to generate bubbles in the spinning solution, wherein the bubbles are broken after reaching the spinning liquid level to form jet flow;
and simultaneously opening a conductive device to form a high-voltage electric field between the conductive device and the liquid storage tank and between the conductive device and the receiving device, and drawing the jet into fibers under the action of the high-voltage electric field until the fibers are received on the receiving device.
Further, the spinning temperature is 20-25 ℃, and the spinning humidity is 50-55%.
The invention has the beneficial effects that: the top of the liquid storage tank is arranged into the convex spherical surface shape, and the plurality of needles are arranged at the top, so that the charge distribution on the electrified needles is more concentrated, the acting force of the electrostatic field force on the spinning solution is maximized, the utilization rate of the electrostatic field force is improved, and the effect of saving energy is achieved;
a plurality of needles evenly distributed and towards the central slope setting at top for the inside gathering of efflux reduces the outside diffusion of large tracts of land of efflux, and the efflux can be more received on receiving arrangement, reduces extravagantly.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a trapezoidal spherical multi-needle bubble spinning device of the present invention.
Fig. 2 is a schematic structural view of the reservoir in fig. 1.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the trapezoidal spherical multi-needle bubble spinning device in a preferred embodiment of the present invention includes a liquid storage tank 2 for storing a spinning solution, an air pump 6 connected to the liquid storage tank 2 through an air duct 7 and configured to deliver air into the liquid storage tank 2, a conductive device disposed above the liquid storage tank 2 and forming a high voltage electric field with the liquid storage tank 2, and a receiving device 10 disposed at one side of the liquid storage tank 2 and configured to receive a manufactured fiber, wherein the receiving device 10 is grounded 11, and the liquid storage tank 2 is made of metal. Indeed, in other embodiments, the material of the liquid storage tank 2 may also be other conductive materials, which is not specifically limited herein and is determined according to practical situations.
In this embodiment, the receiving device 10 is a roller, which can receive the finally formed fiber more uniformly. Indeed, in other embodiments, the receiving device 10 may be other, as long as the corresponding technical effect is achieved, and is not specifically limited herein, depending on the actual situation. The liquid storage tank 2 is provided with a hole, and the air duct 7 extends into the liquid storage tank 2 through the hole. In order to prevent the solution in the reservoir 2 from overflowing through the hole, a sealing member (not shown) is further disposed between the hole and the air duct 7, and the material of the sealing member is rubber or other materials, which are not specifically limited herein, depending on the actual situation.
The trapezoidal spherical multi-needle-head bubble spinning device further comprises a high-voltage power supply device 5 connected with the liquid storage tank 2, and meanwhile, the negative electrode of the high-voltage power supply device 5 is connected with the receiving device 10.
In order to enable the integral device to continuously spin, the trapezoidal spherical multi-needle-head bubble spinning device further comprises a liquid supply device 3 connected with the liquid storage tank 2, and the liquid supply device 3 is connected with the liquid storage tank 2 through a liquid guide pipe 4. The connection mode of the liquid supply device 3 and the liquid storage tank 2 is the same as the connection mode of the air pump 6 and the liquid storage tank 2, which is not described in detail herein.
The conducting device comprises a conducting ring 8 and a power supply 9 connected with the conducting ring 8, and the conducting ring 8 is arranged above the liquid storage tank 2 and below the receiving device 10. The positive electrode of the power supply 9 is connected with the conducting ring 8, the negative electrode of the high-voltage power supply device 5 is connected with the receiving device 10, so that a high-voltage electric field is formed between the conducting ring 8 and the receiving device 10 as well as between the conducting ring and the liquid storage tank 2, and the jet flow is stretched into a filament under the action of the high-voltage electric field and is finally received on the receiving device 10.
In spinning device's direction of height, liquid storage tank 2 has the top that is evagination sphere form, be provided with on the top a plurality of with syringe needle 1 of the inside intercommunication of liquid storage tank 2, the spinning liquid level in the liquid storage tank 2 is located syringe needle 1. The purpose of setting the top part into a convex spherical surface shape is as follows: the electric charge distribution on the electrified needle head 1 can be more concentrated, so that the acting force of the electrostatic field force on the spinning solution can be utilized to the maximum degree, the utilization rate of the electric field force is improved, and the energy conservation is realized. In this embodiment, a plurality of syringe needle 1 evenly distributed just moves towards the central slope setting at top evenly sets up and can reduce the influence between bubble and the bubble to make the liquid level produce evenly distributed's bubble, also reached the technological effect of control bubble size simultaneously, reduced syringe needle 1 and spouted the mixed and disorderly nature, and can make the nanofiber membrane of final collection more even, further improved spinning efficiency. The inclined arrangement of the needle 1 towards the center of the top can make the jet gather more towards the inside and reduce the possibility of the jet spreading to a large area towards the outside, so that the receiving device 10 can receive more nano-fibers as much as possible and reduce waste. Wherein the diameter of the conductive ring 8 is larger than or equal to the diameter of the top, so that the jet drops onto the receiving means 10 after being drawn into a filament by the conductive ring 8. The cross section of the liquid storage tank 2 is trapezoidal, so that a Taylor cone can be formed on the liquid level more conveniently, and continuous liquid supply is facilitated.
The invention also provides a trapezoidal spherical multi-needle bubble spinning method, which adopts the trapezoidal spherical multi-needle bubble spinning device and comprises the following steps:
the spinning solution is placed in a liquid storage tank 2, and the liquid level of the spinning solution is positioned in a needle head 1 at the top;
opening a high-voltage power supply device 5 and an air pump 6, and adjusting the air flow speed of the air pump 6 to generate bubbles in the spinning solution, wherein the bubbles are broken after reaching the spinning liquid level to form jet flow;
while the conducting means are opened so that a high voltage electric field is formed between the conducting means and the receiving means 10, the jet is drawn into a fibre under the influence of the high voltage electric field until the fibre is received on the receiving means 10.
Wherein the spinning temperature is 20-25 ℃, and the spinning humidity is 50-55%. Indeed, in other embodiments, the ranges of the spinning temperature and the spinning humidity may be other, and are not specifically limited herein, depending on the actual situation.
In summary, the following steps: the top of the liquid storage tank 2 is arranged into a convex spherical surface shape, and the top is provided with the plurality of needles 1, so that the charge distribution on the electrified needles 1 is more concentrated, the acting force of the electrostatic field force on the spinning solution is utilized to the maximum extent, the utilization rate of the electrostatic field force is improved, and the effect of saving energy is achieved;
a plurality of syringe needles 1 evenly distributed and towards the central slope setting at top for the inside gathering of efflux reduces the outside diffusion of large tracts of land of efflux, and the efflux can be more received on receiving arrangement 10, reduces extravagantly.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a many syringe needles of trapezoidal sphere bubble spinning equipment which characterized in that includes:
the liquid storage tank is used for placing spinning solution;
the air pump is connected with the liquid storage tank and used for conveying air into the liquid storage tank;
the high-voltage power supply device is connected with the liquid storage tank;
the conductive device is arranged above the liquid storage tank and forms a high-voltage electric field with the liquid storage tank;
the receiving device is arranged on one side of the liquid storage tank to receive the prepared fibers and is connected with the high-voltage power supply device;
in the height direction of the spinning device, the liquid storage tank is provided with a top part in a convex spherical surface shape, and the top part is provided with a plurality of needle heads communicated with the inside of the liquid storage tank.
2. The trapezoidal spherical multi-needle bubble spinning device according to claim 1, wherein a plurality of said needles are uniformly distributed and are disposed obliquely toward the center of said top portion.
3. The trapezoidal spherical multi-needle bubble spinning device according to claim 1, wherein the cross section of said reservoir is trapezoidal in shape.
4. The trapezoidal spherical multi-needle bubble spinning device according to claim 1, wherein the liquid reservoir is made of metal.
5. The apparatus according to claim 1, wherein the conducting means comprises a conducting ring and a power supply connected to the conducting ring, and the conducting ring is disposed above the liquid reservoir.
6. The trapezoidal spherical multi-needle bubble spinning device according to claim 5, wherein the diameter of said conductive ring is greater than or equal to the diameter of said top.
7. The trapezoidal spherical multi-needle bubble spinning device according to claim 5, wherein the positive pole of the power supply is connected to the conductive ring, and the negative pole of the high voltage power supply is connected to the liquid storage tank.
8. The trapezoidal spherical multi-needle bubble spinning device according to claim 1, further comprising a liquid supply device connected to said liquid reservoir, said liquid supply device being connected to said liquid reservoir through a liquid guide tube.
9. A trapezoidal spherical multi-needle bubble spinning method, which is characterized in that the trapezoidal spherical multi-needle bubble spinning device as claimed in any one of claims 1 to 8 is adopted, and the method comprises the following steps:
placing the spinning solution in a liquid storage tank, wherein the liquid level of the spinning solution is positioned in a needle head at the top;
opening a high-voltage power supply device and an air pump, and adjusting the air flow speed of the air pump to generate bubbles in the spinning solution, wherein the bubbles are broken after reaching the spinning liquid level to form jet flow;
and simultaneously opening a conductive device to form a high-voltage electric field between the conductive device and the liquid storage tank and between the conductive device and the receiving device, and drawing the jet into fibers under the action of the high-voltage electric field until the fibers are received on the receiving device.
10. The trapezoidal spherical multi-needle bubble spinning method according to claim 9, wherein the spinning temperature is 20 ℃ to 25 ℃, and the spinning humidity is 50% to 55%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010239931.2A CN111270319A (en) | 2020-03-31 | 2020-03-31 | Trapezoidal spherical multi-needle-head bubble spinning device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010239931.2A CN111270319A (en) | 2020-03-31 | 2020-03-31 | Trapezoidal spherical multi-needle-head bubble spinning device and method |
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| CN111270319A true CN111270319A (en) | 2020-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287772A (en) * | 2022-08-01 | 2022-11-04 | 东华大学 | Separated air electrostatic spinning device with uniformly distributed bubbles and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN108660522A (en) * | 2018-05-31 | 2018-10-16 | 苏州大学 | Capillary electrostatic spinning apparatus and spinning process |
| CN209456618U (en) * | 2019-01-25 | 2019-10-01 | 青岛科技大学 | A kind of spherical shape free interface melt electrostatic spinning device |
| CN210085634U (en) * | 2019-03-11 | 2020-02-18 | 苏州大学 | Ball tangent plane bubble spinning equipment |
| CN211921756U (en) * | 2020-03-31 | 2020-11-13 | 苏州大学 | Trapezoidal spherical multi-needle-head bubble spinning device |
-
2020
- 2020-03-31 CN CN202010239931.2A patent/CN111270319A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN108660522A (en) * | 2018-05-31 | 2018-10-16 | 苏州大学 | Capillary electrostatic spinning apparatus and spinning process |
| CN209456618U (en) * | 2019-01-25 | 2019-10-01 | 青岛科技大学 | A kind of spherical shape free interface melt electrostatic spinning device |
| CN210085634U (en) * | 2019-03-11 | 2020-02-18 | 苏州大学 | Ball tangent plane bubble spinning equipment |
| CN211921756U (en) * | 2020-03-31 | 2020-11-13 | 苏州大学 | Trapezoidal spherical multi-needle-head bubble spinning device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287772A (en) * | 2022-08-01 | 2022-11-04 | 东华大学 | Separated air electrostatic spinning device with uniformly distributed bubbles and use method thereof |
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