CN211947308U - Bubble electrostatic spinning device for preparing nanofiber yarn - Google Patents
Bubble electrostatic spinning device for preparing nanofiber yarn Download PDFInfo
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- CN211947308U CN211947308U CN202020353559.3U CN202020353559U CN211947308U CN 211947308 U CN211947308 U CN 211947308U CN 202020353559 U CN202020353559 U CN 202020353559U CN 211947308 U CN211947308 U CN 211947308U
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Abstract
The utility model discloses a bubble electrostatic spinning device for preparing nano-fiber yarn, which comprises a liquid storage tank, wherein the upper end of the liquid storage tank is opened, a bubble generator is arranged in the liquid storage tank, and a gas injection assembly is also arranged in the liquid storage tank; the roller assembly comprises a first driving source, a second driving source and a receiving roller, wherein a central shaft of the receiving roller is horizontally arranged, the receiving roller is positioned right above the opening of the liquid storage tank, the first driving source drives the receiving roller to rotate on the horizontal plane, and the second driving source drives the receiving roller to rotate around the central shaft; one end of the high-voltage power supply assembly is electrically connected with the receiving roller, and the other end of the high-voltage power supply assembly is electrically connected with the bubble generator; the air supply assembly comprises a first air pump and a second air pump, the first air pump is connected with the plurality of air injection pipes to supply air, and the second air pump is connected with the bubble generator. The yarn forming quality is good, the working efficiency is high, and the production is continuous.
Description
Technical Field
The utility model relates to an electrostatic spinning technical field, concretely relates to bubble electrostatic spinning device of preparation nanofiber yarn.
Background
The bubble electrostatic spinning is a preparation method of superfine fiber and nano fiber which is started in recent years, compared with the traditional electrostatic spinning method, the bubble electrostatic spinning enables single or multiple uniform bubbles to be generated on the surface of a polymer solution, the bubbles are equivalent to a plurality of taylor cones of needle electrostatic spinning on a free liquid surface, the problems of low yield and easy blockage of needle holes of the traditional electrostatic spinning are solved, and the mass production of the nano fiber is hopefully realized.
With the continuous development of electrostatic spinning preparation technology, the produced nano-fiber has large specific surface area, high porosity and excellent mechanical, optical and thermal properties, and is widely applied to the fields of environmental protection, energy regeneration, biomedicine, information and the like. In these fields, most of the adopted nanofiber materials are in the form of nonwoven fabrics with randomly deposited nanofibers, and the inherent two-dimensional structure has the defect of insufficient mechanical properties, so that the nanofiber materials cannot be applied to all occasions.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a bubble electrostatic spinning device of preparation nanofiber yarn, its resultant yarn is of high quality, and work efficiency is high, and production is continuous.
In order to solve the technical problem, the utility model provides a bubble electrostatic spinning device of preparation nanofiber yarn, include: the liquid storage tank is provided with an opening at the upper end, a bubble generator is arranged inside the liquid storage tank, a gas injection assembly is further arranged in the liquid storage tank and comprises a plurality of vertically arranged gas injection pipes, the plurality of gas injection pipes are uniformly arranged around the circumference of the bubble generator, and the upper ends of the gas injection pipes are higher than the liquid level in the liquid storage tank;
the roller assembly comprises a first driving source, a second driving source and a receiving roller, wherein a central shaft of the receiving roller is horizontally arranged, the receiving roller is positioned right above an opening of the liquid storage tank, the first driving source drives the receiving roller to rotate on the horizontal plane, and the second driving source drives the receiving roller to rotate around the central shaft;
one end of the high-voltage power supply assembly is electrically connected with the receiving roller, and the other end of the high-voltage power supply assembly is electrically connected with the bubble generator;
the air supply assembly comprises a first air pump and a second air pump, the first air pump is connected with the plurality of air injection pipes for air supply, and the second air pump is connected with the bubble generator.
Preferably, the air injection assemblies are provided in two groups, and the two groups of air injection assemblies are concentric circles around a circle formed by the bubble generator.
Preferably, the gas injection pipes of the two groups of gas injection assemblies are arranged in a staggered mode.
Preferably, the cross section of the liquid storage tank is circular or rectangular.
Preferably, a hollow channel is vertically arranged in the liquid storage tank, the hollow channel is communicated with the outside of the liquid storage tank, and the gas ejector pipe is arranged in the hollow channel in a penetrating mode.
Preferably, the bubble generator is located at the center of the reservoir.
Preferably, the surface of the receiving roller is coated with a conductive metal film, and the high-voltage power supply assembly is electrically connected with the conductive metal film.
Preferably, the bubble generator further comprises a metal electrode, one end of the metal electrode is connected with the bubble generator, the other end of the metal electrode is connected with the positive electrode of the high-voltage power supply assembly, the negative electrode of the high-voltage power supply assembly is connected with the conductive metal film, and the conductive metal film is grounded.
Preferably, the first air pump passes through the second air pumpAThe trachea is connected with a plurality of jet-propelled pipes, the second air pump passes through the second trachea and is connected with bubble generator, all be provided with the pneumatic valve on first trachea and the second trachea.
Preferably, the roller assembly further comprises a top plate and an installation frame, the first driving source and the second driving source are both motors, the first driving source is fixedly arranged on the top plate, and a power output end of the first driving source is connected with the installation frame and can drive the installation frame to rotate in a horizontal plane; the mounting bracket is provided with a second driving source, one end of the receiving roller is connected with the motion output end of the second driving source, and the other end of the receiving roller is connected with the mounting bracket through a rotating bearing.
The utility model has the advantages that:
1. in the utility model, the first driving source drives the receiving roller to rotate, and the rotating surface of the roller is parallel to the liquid level of the spinning solution, so that the nano-fiber contacted with the receiving roller is twisted; the second driving source drives the receiving roller to perform winding motion so as to continuously collect the twisted and formed nano-fiber yarns, so that the working efficiency is high, the yield is high, and the production is continuous.
2. The utility model discloses in, jet-propelled subassembly includes the jet-propelled pipe of a plurality of vertical settings, and is a plurality of jet-propelled pipe evenly sets up around bubble generator's circumference, the upper end of jet-propelled pipe is higher than the liquid level in the liquid reserve tank, and the jet-propelled subassembly can further straighten the nanofiber, reduces crooked and overhead kick, improves the twisting resultant yarn evenness degree, and resultant yarn is of high quality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the roller assembly of the present invention;
FIG. 3 is a schematic view of a gas lance distribution.
The reference numbers in the figures illustrate: 1. a high voltage power supply assembly; 2. a liquid storage tank; 3. receiving a roller; 4. a first air pump; 5. a second air pump; 6. an air valve; 7. a hollow channel; 8. a gas ejector tube; 9. a bubble generator; 10. a metal electrode; 11. air bubbles; 12. a ground electrode; 13. a first drive source; 14. a second drive source; 15. a top plate; 16. a mounting frame; 17. and rotating the bearing.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1-3, the utility model discloses a bubble electrostatic spinning device for preparing nanofiber yarn, including liquid storage tank 2, roller subassembly, high voltage power supply subassembly 1 and air feed subassembly.
2 upper end openings of liquid storage tank 2 are provided with bubble generator 9 in the liquid storage tank 2, still are provided with jet-propelled subassembly in the liquid storage tank 2, and jet-propelled subassembly includes the jet-propelled pipe 8 of a plurality of vertical settings, and a plurality of jet-propelled pipes 8 encircle the even setting of circumference of bubble generator 9, and the upper end of jet-propelled pipe 8 is higher than the liquid level in the liquid storage tank 2. The bubble generator may be provided in plurality.
The roller assembly comprises a first driving source 13, a second driving source 14 and a receiving roller 3, wherein a central shaft of the receiving roller 3 is horizontally arranged, the receiving roller 3 is positioned right above an opening of the liquid storage tank 2, the first driving source 13 drives the receiving roller 3 to rotate on the horizontal plane, and the second driving source 14 drives the receiving roller 3 to rotate around the central shaft. The first driving source 13 drives the receiving roller 3 to rotate, and the rotation surface of the roller is parallel to the spinning solution level, so that the nanofibers contacting the receiving roller 3 are twisted. The second driving source 14 drives the receiving roller 3 to perform a winding motion to continuously collect the twisted nanofiber yarn.
One end of the high-voltage power supply assembly 1 is electrically connected with the receiving roller 3, and the other end is electrically connected with the bubble generator 9. The high voltage power supply assembly 1 is prior art and will not be described in detail here.
The air supply assembly comprises a first air pump 4 and a second air pump 5, the first air pump 4 is connected with a plurality of air injection pipes 8 for supplying air, and the second air pump 5 and an air bubble generator 9. The first air pump 4 is used for delivering vertical air flow and acting on the nano-fibers, and the second air pump 5 is used for generating bubbles in the solution or the melt. The first air pump 4 and the second air pump 5 may be specifically a high-pressure air cylinder, a hand blower, or the like.
The air injection assemblies are provided with two groups, and the two groups of air injection assemblies are concentric circles around the circle formed by the bubble generator 9. Generally, the number of the gas nozzles 8 depends on the aperture and the specification of the liquid storage tank 2, and it is sufficient to connect several gas nozzles 8 in a circle while keeping a suitable distance from each other, in this embodiment, the number of the gas nozzles 8 is 10. Therefore, the gas output by the second driving source 14 forms a circle of gas flow beams at the bottom of the jet flow, the motion range of the nano fibers is restricted and more nano fibers are deposited on the receiving roller 3, and the drafting effect of the gas flow can further improve the yarn forming strength and the evenness.
The gas injection pipes 8 of the two groups of gas injection assemblies are arranged in a staggered way. I.e. the gas lances 8 in both sets of gas injection modules are spaced apart.
The cross section of the liquid storage tank 2 is circular or rectangular. A hollow channel 7 is vertically arranged in the liquid storage tank 2, the hollow channel 7 is communicated with the outside of the liquid storage tank 2, and an air injection pipe 8 is arranged in the hollow channel 7 in a penetrating manner.
The bubble generator 9 is located at the center of the reservoir 2.
The surface of the receiving roller 3 is coated with a conductive metal film, and the high-voltage power supply assembly 1 is electrically connected with the conductive metal film. The utility model discloses still include metal electrode 10, metal electrode 10 one end is located bubble generator 9 and connects, and metal electrode 10's the other end and the anodal of high voltage power supply subassembly 1 are connected, and high voltage power supply subassembly 1's negative pole and conductive metal membrane are connected, conductive metal membrane ground connection.
The first air pump 4 is connected with a plurality of air injection pipes 8 through a second air pipe, the second air pump 5 is connected with the bubble generator 9 through a second air pipe, and air valves 6 are arranged on the first air pipe and the second air pipe. The air valve 6 is convenient for adjusting the size and opening and closing of the air flow.
The roller assembly further comprises a top plate 15 and a mounting frame 16, the first driving source 13 and the second driving source 14 are both motors, the first driving source 13 is fixedly arranged on the top plate 15, and a power output end of the first driving source 13 is connected with the mounting frame 16 and can drive the mounting frame 16 to rotate in a horizontal plane. The mounting frame 16 is provided with a second driving source 14, one end of the receiving roller 3 is connected with the motion output end of the second driving source 14, and the other end of the receiving roller 3 is connected with the mounting frame 16 through a rotating bearing 17.
The working principle of the utility model is as follows: the liquid storage tank 2 is filled with polymer solution or melt, the first air pump 4 and the second air pump 5 continuously output air, the second air pump 5 supplies air to the bubble generator 9, and the high-voltage power supply assembly 1 is opened after the upper end of the liquid storage tank 2 generates continuous, stable and uniform bubbles 11. The positive pole and the negative pole of high voltage power supply subassembly are electric connection respectively in bubble generator 9 and the receiving roller 3 in the liquid storage tank 2, so receive the electric field that produces between roller 3 and liquid storage tank 2, make the individual droplet that bubble 11 broke and produce form the silk bundle efflux under the electric field force effect, the efflux forms nanofiber through swing, evaporation, refinement process. When the first batch of nano fibers are deposited on the receiving roller 3, the first driving source 13 is started to work, and the nano fiber yarn is twisted due to the fact that the receiving roller 3 rotates to drive the nano fibers to be mutually entangled and gathered. The second motor then causes the receiving roller 3 to wind the twisted nanofiber bundle at a very slow speed. In the process, the gas pumped by the first air pump 4 is sprayed out through the gas spraying pipe 8, the gas spraying pipe 8 is in an annular shape to limit the motion range of the nano fibers, and meanwhile, the drafting effect of the gas flow accelerates the curing process of the nano fibers, so that the mechanical property and the evenness of the finished yarn are improved.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. An air bubble electrostatic spinning device for preparing nanofiber yarn, comprising:
the liquid storage tank is provided with an opening at the upper end, a bubble generator is arranged inside the liquid storage tank, a gas injection assembly is further arranged in the liquid storage tank and comprises a plurality of vertically arranged gas injection pipes, the plurality of gas injection pipes are uniformly arranged around the circumference of the bubble generator, and the upper ends of the gas injection pipes are higher than the liquid level in the liquid storage tank;
the roller assembly comprises a first driving source, a second driving source and a receiving roller, wherein a central shaft of the receiving roller is horizontally arranged, the receiving roller is positioned right above an opening of the liquid storage tank, the first driving source drives the receiving roller to rotate on the horizontal plane, and the second driving source drives the receiving roller to rotate around the central shaft;
one end of the high-voltage power supply assembly is electrically connected with the receiving roller, and the other end of the high-voltage power supply assembly is electrically connected with the bubble generator;
the air supply assembly comprises a first air pump and a second air pump, the first air pump is connected with the plurality of air injection pipes for air supply, and the second air pump is connected with the bubble generator.
2. The bubble electrospinning apparatus for producing nanofiber yarns as claimed in claim 1, wherein the air jet units have two sets, and the two sets of air jet units are concentric around the circle formed by the bubble generator.
3. The bubble electrospinning apparatus for producing nanofiber yarns as claimed in claim 2, wherein the air injection pipes of the two sets of air injection units are arranged alternately.
4. The bubble electrospinning apparatus for producing nanofiber yarns according to claim 1, wherein the cross section of the liquid reservoir is circular or rectangular.
5. The bubble electrospinning device for preparing nanofiber yarns as claimed in claim 1, wherein a hollow channel is vertically arranged in the liquid storage tank, the hollow channel is communicated with the outside of the liquid storage tank, and the gas injection pipe is arranged in the hollow channel in a penetrating manner.
6. The bubble electrospinning apparatus for producing nanofiber yarns as claimed in claim 1, wherein the bubble generator is located at the center of the liquid reservoir.
7. The bubble electrospinning apparatus for preparing nanofiber yarns as claimed in claim 1, wherein the surface of the receiving roller is coated with a conductive metal film, and the high voltage power supply assembly is electrically connected to the conductive metal film.
8. The bubble electrospinning apparatus for producing nanofiber yarns as claimed in claim 1, further comprising a metal electrode, wherein one end of the metal electrode is connected to the bubble generator, the other end of the metal electrode is connected to the positive electrode of the high voltage power supply module, the negative electrode of the high voltage power supply module is connected to the conductive metal film, and the conductive metal film is grounded.
9. The bubble electrospinning apparatus for producing nanofiber yarns as claimed in claim 1, wherein the first air pump is connected to the plurality of air injection pipes through a first air pipe, the second air pump is connected to the bubble generator through a second air pipe, and the first air pipe and the second air pipe are both provided with air valves.
10. The bubble electrospinning apparatus for preparing nanofiber yarns as claimed in claim 1, wherein the roller assembly further comprises a top plate and a mounting frame, the first driving source and the second driving source are both motors, the first driving source is fixedly arranged on the top plate, and a power output end of the first driving source is connected with the mounting frame and can drive the mounting frame to rotate in a horizontal plane; the mounting bracket is provided with a second driving source, one end of the receiving roller is connected with the motion output end of the second driving source, and the other end of the receiving roller is connected with the mounting bracket through a rotating bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020353559.3U CN211947308U (en) | 2020-03-19 | 2020-03-19 | Bubble electrostatic spinning device for preparing nanofiber yarn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020353559.3U CN211947308U (en) | 2020-03-19 | 2020-03-19 | Bubble electrostatic spinning device for preparing nanofiber yarn |
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| CN211947308U true CN211947308U (en) | 2020-11-17 |
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| CN202020353559.3U Active CN211947308U (en) | 2020-03-19 | 2020-03-19 | Bubble electrostatic spinning device for preparing nanofiber yarn |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081862A (en) * | 2021-04-12 | 2021-07-09 | 长春工业大学 | Preparation method of hyaluronic acid composite electrostatic spinning mask |
| CN115537940A (en) * | 2022-10-12 | 2022-12-30 | 北京化工大学 | Device and method for preparing melt-solution electrostatic spinning cross-scale composite yarn |
-
2020
- 2020-03-19 CN CN202020353559.3U patent/CN211947308U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081862A (en) * | 2021-04-12 | 2021-07-09 | 长春工业大学 | Preparation method of hyaluronic acid composite electrostatic spinning mask |
| CN115537940A (en) * | 2022-10-12 | 2022-12-30 | 北京化工大学 | Device and method for preparing melt-solution electrostatic spinning cross-scale composite yarn |
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