CN211872154U - Stirring type large-batch free liquid level electrostatic spinning device - Google Patents
Stirring type large-batch free liquid level electrostatic spinning device Download PDFInfo
- Publication number
- CN211872154U CN211872154U CN202020286350.XU CN202020286350U CN211872154U CN 211872154 U CN211872154 U CN 211872154U CN 202020286350 U CN202020286350 U CN 202020286350U CN 211872154 U CN211872154 U CN 211872154U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- liquid storage
- stirring
- telescopic rotating
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The application relates to a stirring type large-batch free liquid level electrostatic spinning device which comprises a liquid storage tank, a stirring mechanism, a telescopic rotating mechanism, a driving mechanism and a high-voltage electrostatic generator, wherein the liquid storage tank is used for containing spinning solution; the driving mechanism drives the telescopic rotating mechanism to rotate so that the telescopic rotating mechanism can lift and rotate relative to the liquid storage tank, and then the stirring mechanism is driven to lift and rotate in the liquid storage tank. The stirring type large-batch free liquid level electrostatic spinning device and method can prevent the spinning solution from being solidified in the spinning process, so that the spinning yield and quality are improved.
Description
Technical Field
The utility model relates to a big free liquid level electrostatic spinning device in batches of stirring formula belongs to electrostatic spinning technical field.
Background
The free liquid level electrostatic spinning is used as a novel spinning process, the spinning principle of the free liquid level electrostatic spinning is similar to that of bubble electrostatic spinning, the electrostatic force provided by a high-voltage electric field is utilized to overcome the surface tension of the liquid level of a polymer, a Taylor cone is formed on the liquid level of the polymer, jet flow is further formed, and the jet flow is attenuated into nano fibers under the action of the electric field force. Because no bubble is involved in the process, the defects of uncontrollable bubble size, irregular bubble breakage and uneven fiber diameter distribution caused by the uncontrollable bubble size and the irregular bubble breakage are overcome, and the advantage of high yield of bubble electrostatic spinning is also kept. However, in the free liquid level spinning process, the surface tension exists only on the liquid storage device, and the generated fibers are not enough to overcome the surface tension under the action of high-voltage static electricity. Meanwhile, the solution is solidified in the spinning process due to the fact that the viscosity of some spinning solutions is high; and due to the action of gravity, substances added into the solution, such as graphene (Gr) and Carbon Nanotubes (CNTs), can aggregate and precipitate during a long-term spinning process, so that the quality of the spun fiber film is not uniform and the experimental and production requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a free liquid level electrostatic spinning device in batches of stirring formula, it can prevent that spinning solution from taking place the coagulation phenomenon at the spinning in-process to improve spinning output and quality.
In order to achieve the above purpose, the utility model provides a following technical scheme: a stirring type large-batch free liquid level electrostatic spinning device comprises a liquid storage tank for containing spinning solution, a stirring mechanism arranged in the liquid storage tank, a telescopic rotating mechanism connected with the stirring mechanism, a driving mechanism for driving the telescopic rotating mechanism and a high-voltage electrostatic generator connected with the liquid storage tank, wherein a through hole is formed in the bottom of the liquid storage tank, and the telescopic rotating mechanism extends into the liquid storage tank through the through hole and is connected with the stirring mechanism; the driving mechanism drives the telescopic rotating mechanism to rotate so that the telescopic rotating mechanism can lift and rotate relative to the liquid storage tank, and then the stirring mechanism is driven to lift and rotate in the liquid storage tank.
Furthermore, the telescopic rotating mechanism comprises a first rod connected with the driving mechanism and a second rod capable of lifting relative to the first rod, the first rod is connected with the liquid storage tank, and the second rod is connected with the stirring mechanism.
Further, a sealing member for preventing the spinning solution from leaking out is arranged between the first rod and the through hole.
Further, the stirring mechanism comprises at least one base connected with the telescopic rotating mechanism and a stirring rod arranged on the base.
Further, the top of the stirring rod is provided with a groove.
Further, the cross-section of the groove is shaped like a hemisphere.
Furthermore, the stirring type large-batch free liquid level electrostatic spinning device also comprises a constant-flow liquid supply mechanism which is connected with the liquid storage tank and provides spinning solution for the liquid storage tank.
Further, the stirring type large-batch free liquid level electrostatic spinning device also comprises a receiving mechanism arranged on one side of the liquid storage tank.
The beneficial effects of the utility model reside in that: by arranging the telescopic rotating mechanism and the stirring mechanism, the telescopic rotating mechanism can drive the stirring mechanism to rotate in the liquid storage tank so as to stir the spinning solution, so that the spinning solution is prevented from being solidified, and the spinning yield and quality are improved; meanwhile, the telescopic rotating mechanism can also drive the stirring mechanism to lift relative to the liquid storage tank, and when the stirring mechanism extends out of the spinning solution, the surface tension of the spinning solution can be broken, so that the liquid level is easier to be stretched to generate more fibers;
the stirring mechanism is provided with a groove, the spinning solution can be contained in the groove when the stirring mechanism extends out of the spinning solution, and then a plurality of small free liquid surfaces with surface tension are formed above the liquid storage tank to be stretched, so that more fibers are generated.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the stirring type large batch free liquid level electrostatic spinning device of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to 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, in a preferred embodiment of the present invention, the stirring type electrostatic spinning apparatus with free liquid level in batch comprises a liquid storage tank 9 for containing spinning solution, a stirring mechanism disposed in the liquid storage tank 9, a telescopic rotating mechanism 6 connected to the stirring mechanism, a driving mechanism 5 for driving the telescopic rotating mechanism 6, a high voltage electrostatic generator 4 connected to the liquid storage tank 9, a constant current liquid supply mechanism 1 connected to the liquid storage tank 9 for providing spinning solution to the liquid storage tank 9, and a receiving mechanism 2 disposed on one side of the liquid storage tank 9, wherein the receiving mechanism 2 is grounded, that is, connected to the grounding electrode 3. The driving mechanism 5 drives the telescopic rotating mechanism 6 to rotate so that the telescopic rotating mechanism 6 can be lifted and rotated relative to the liquid storage tank 9, and further drives the stirring mechanism to be lifted and rotated in the liquid storage tank 9. The material of the telescopic rotating mechanism 6 and the stirring mechanism is non-conductive high polymer such as polytetrafluoroethylene, and the driving mechanism 5 is prevented from being damaged by high-voltage static electricity. In the present embodiment, the driving mechanism 5 is a motor. Indeed, in other embodiments, the driving mechanism 5 may be other, and is not limited herein, depending on the actual situation. In this embodiment, the material of the liquid storage 9 is a conductive metal material, such as gold, copper, etc., and is not particularly limited herein, depending on the actual situation. The reservoir 9 has a notch formed by being depressed inward from the surface thereof, and the stirring mechanism is disposed in the notch. The receiving mechanism 2 may be a net or a roller, and is mainly used for obtaining uniform fibers, which is not limited herein. For better fiber reception, the receiving means 2 is arranged above the slot from which the fibers move upwards and are then collected in the receiving means 2. Indeed, in other embodiments, the positions of the receiving mechanism 2 and the reservoir 9 may be other, and are not limited herein, depending on the actual situation.
The bottom of liquid storage tank 9 is provided with the through-hole, flexible rotary mechanism 6 passes through the through-hole stretch into to in the liquid storage tank 9 with rabbling mechanism is connected. In order to prevent the spinning solution from leaking out of the through hole to cause the waste of the spinning solution, a sealing member is further disposed between the through hole and the telescopic rotating mechanism 6, and the sealing member may be a rubber sealing member or the like, and is not particularly limited herein, depending on the actual situation. Specifically, the telescopic rotating mechanism 6 includes a first rod (not shown) connected to the driving mechanism 5 and a second rod (not shown) capable of moving up and down relative to the first rod, and the moving up and down of the first rod and the second rod is conventional and will not be described herein. The first rod is connected with the liquid storage tank 9, the second rod is fixedly connected with the stirring mechanism, and the first rod can rotate relative to the liquid storage tank 9 to drive the second rod and the stirring mechanism to rotate. It is noted that, in this embodiment, when the telescopic rotating mechanism 6 and the stirring mechanism are in the initial state, that is, the telescopic rotating mechanism 6 and the stirring mechanism are not lifted and rotated with respect to the liquid storage tank 9, the stirring mechanism is located in the spinning solution.
The stirring mechanism comprises at least one base 7 connected with the telescopic rotating mechanism 6 and stirring rods 10 arranged on the base 7, in this embodiment, the number of the bases 7 is 4, the bases 7 are uniformly arranged, and each base 7 is provided with two stirring rods 10. However, in other embodiments, the number of the base 7 and the stirring rods 10 may be other, and is not limited specifically herein, depending on the actual situation. However, the number of the stirring mechanisms should not be too large, so that the diameter distribution of the produced fibers is prevented from being uneven. The top of the stirring rod 10 is provided with a groove 8, and the cross section of the groove 8 is hemispherical. Indeed, in other embodiments, the shape of the groove 8 may be other, and is not limited in particular, as the case may be. When the telescopic rotating mechanism 6 and the stirring mechanism are in the initial state, the stirring mechanism is positioned in the spinning solution. The driving mechanism 5 is started, and then the telescopic rotating mechanism 6 is driven to rotate so as to drive the stirring mechanism to rotate. And starting the telescopic rotating mechanism 6 to lift so as to drive the rotating mechanism to lift relative to the liquid storage tank 9. When the stirring rod 10 protrudes from the spinning solution to the outside of the spinning solution, the surface tension of the spinning liquid surface is broken, thereby making the spinning liquid surface more easily drawn to produce more fibers. And, because the top of the stirring rod 10 is provided with the groove 8, when the stirring rod 10 extends out of the spinning solution from the inside of the spinning solution, the spinning solution is contained in the groove 8, so that a plurality of small free liquid surfaces with surface tension are formed for drawing, and the fiber yield is improved. The diameter of the groove 8 is sized according to the desired fiber yield and is not particularly limited. In order to prevent the diameter of the produced fibers from being uneven, the height of the stirring rod 10 extending out of the liquid surface is in the range of 0.5 to 2 cm. Indeed, in other embodiments, the height range of the stirring rod 10 extending out of the liquid level can be other, as long as the corresponding purpose is achieved. When the stirring rod 10 is lowered into the spinning solution, no spinning solution remains in the groove 8.
The implementation process of the stirring type large-batch free liquid level electrostatic spinning device is as follows: preparing spinning solution, injecting the spinning solution into a constant-flow liquid supply mechanism 1, injecting the spinning solution into a liquid storage tank 9 at a constant speed through the constant-flow liquid supply mechanism 1 until the spinning solution in the liquid storage tank 9 is flush with the end part of the liquid storage tank 9, and then closing the constant-flow liquid supply mechanism 1. At this time, the stirring mechanism is located at the bottom end of the liquid storage tank 9. And (3) opening the high-voltage electrostatic generator 4, simultaneously opening the constant-current liquid supply mechanism 1 again, and after the liquid supply rate is set, starting the driving mechanism 5 to drive the telescopic rotating mechanism 6 to rotate and repeatedly lift the liquid storage tank 9 by the driving mechanism 5, so as to drive the stirring mechanism to repeatedly lift, further lift the stirring rod 10 in the liquid storage tank 91, wherein the lifting height is 1 cm. The free liquid level formed in the liquid storage tank 9 and the groove 8 is stretched into filaments under the action of high-voltage static electricity, and forms a Taylor cone to finally form fibers until the fibers are received by the receiving mechanism 2, and finally a uniform nanofiber membrane is formed.
The utility model also provides a big free liquid level electrostatic spinning method of stirring formula, adopt as above big free liquid level electrostatic spinning device in batches of stirring formula, the method includes:
s1: preparing a spinning solution, and putting the prepared spinning solution into the liquid storage tank 9;
s2: starting the driving mechanism 5, wherein the driving mechanism 5 drives the telescopic rotating mechanism 6 to rotate in the liquid storage tank 9 and move upwards along the liquid storage tank 9 until the stirring mechanism extends out of the spinning solution for spinning;
s3: the "S2" step was repeated to prepare a uniform nanofiber membrane.
In summary, the following steps: by arranging the telescopic rotating mechanism 6 and the stirring mechanism, the telescopic rotating mechanism 6 can drive the stirring mechanism to rotate in the liquid storage tank 9 so as to stir the spinning solution, so that the spinning solution is prevented from being solidified, and the spinning yield and quality are improved; meanwhile, the telescopic rotating mechanism 6 can also drive the stirring mechanism to lift relative to the liquid storage tank 9, and when the stirring mechanism extends out of the spinning solution, the surface tension of the spinning solution can be broken, so that the liquid level is easier to be stretched to generate more fibers;
be provided with recess 8 on the rabbling mechanism, can contain the spinning solution in the recess 8 when rabbling mechanism stretches out from the spinning solution, form a plurality of little free liquid levels that have surface tension above liquid storage tank 9 then in order to stretch, and then produce more fibre.
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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A stirring type large-batch free liquid level electrostatic spinning device is characterized by comprising a liquid storage tank for containing spinning solution, a stirring mechanism arranged in the liquid storage tank, a telescopic rotating mechanism connected with the stirring mechanism, a driving mechanism for driving the telescopic rotating mechanism and a high-voltage electrostatic generator connected with the liquid storage tank, wherein a through hole is formed in the bottom of the liquid storage tank, and the telescopic rotating mechanism extends into the liquid storage tank through the through hole and is connected with the stirring mechanism; the driving mechanism drives the telescopic rotating mechanism to rotate so that the telescopic rotating mechanism can lift and rotate relative to the liquid storage tank, and then the stirring mechanism is driven to lift and rotate in the liquid storage tank.
2. The apparatus according to claim 1, wherein the telescopic rotating mechanism comprises a first rod connected to the driving mechanism and a second rod that is movable up and down relative to the first rod, the first rod is connected to the liquid reservoir, and the second rod is connected to the stirring mechanism.
3. The agitated bulk free surface electrospinning device of claim 2, wherein a seal is further provided between the first rod and the through hole to prevent the spinning solution from leaking out.
4. The agitated bulk free liquid surface electrospinning apparatus of claim 1, wherein the agitation mechanism comprises at least one base connected to the telescoping rotation mechanism and an agitator bar disposed on the base.
5. The agitated bulk free liquid surface electrospinning device of claim 4, wherein the top of the agitating bar is provided with a groove.
6. The agitated bulk free-meniscus electrospinning device of claim 5, wherein the cross-section of the grooves is hemispherical in shape.
7. The agitated bulk free liquid surface electrospinning apparatus of claim 1, further comprising a constant flow supply mechanism connected to the reservoir and providing spinning solution to the reservoir.
8. The agitated bulk free liquid surface electrospinning apparatus of claim 1, further comprising a receiving mechanism disposed on a side of the reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286350.XU CN211872154U (en) | 2020-03-10 | 2020-03-10 | Stirring type large-batch free liquid level electrostatic spinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286350.XU CN211872154U (en) | 2020-03-10 | 2020-03-10 | Stirring type large-batch free liquid level electrostatic spinning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211872154U true CN211872154U (en) | 2020-11-06 |
Family
ID=73254922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020286350.XU Withdrawn - After Issue CN211872154U (en) | 2020-03-10 | 2020-03-10 | Stirring type large-batch free liquid level electrostatic spinning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211872154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139541A (en) * | 2020-03-10 | 2020-05-12 | 苏州大学 | Stirring type large-batch free liquid level electrostatic spinning device and method |
| CN115467033A (en) * | 2022-09-19 | 2022-12-13 | 魏桥纺织股份有限公司 | Telescopic liquid-carrying needle-free electrostatic spinning device |
| WO2023004835A1 (en) * | 2021-07-27 | 2023-02-02 | 苏州大学 | Free surface electrospinning apparatus |
-
2020
- 2020-03-10 CN CN202020286350.XU patent/CN211872154U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139541A (en) * | 2020-03-10 | 2020-05-12 | 苏州大学 | Stirring type large-batch free liquid level electrostatic spinning device and method |
| WO2023004835A1 (en) * | 2021-07-27 | 2023-02-02 | 苏州大学 | Free surface electrospinning apparatus |
| CN115467033A (en) * | 2022-09-19 | 2022-12-13 | 魏桥纺织股份有限公司 | Telescopic liquid-carrying needle-free electrostatic spinning device |
| CN115467033B (en) * | 2022-09-19 | 2023-10-31 | 魏桥纺织股份有限公司 | Telescopic carrier liquid needleless electrostatic spinning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211872154U (en) | Stirring type large-batch free liquid level electrostatic spinning device | |
| CN206308452U (en) | A kind of electrostatic spinning nano fiber generating means | |
| CN108532005B (en) | Electrostatic spinning method for preparing nanofibers in batches through electrostatic spinning device | |
| CN102140701B (en) | Porous sprayer electrostatic spinning device for preparing nano fibrofelt and preparation method thereof | |
| CN101818381B (en) | Novel magnetic stirring electrostatic spinning spray head and using method thereof | |
| CN108330550B (en) | Non-nozzle type electrostatic spinning device and using method thereof | |
| CN105734696B (en) | A kind of preparation method of polystyrene Kynoar coaxial electrostatic spinning silk fiber | |
| CN112921414A (en) | Preparation method of green environment-friendly waterborne polyurethane nanofiber | |
| CN111139541A (en) | Stirring type large-batch free liquid level electrostatic spinning device and method | |
| CN108411383B (en) | Porous spherical electrostatic spinning nozzle and spinning method thereof | |
| CN105926058B (en) | A kind of funneling jet device for spinning | |
| CN108660521B (en) | Spherical electrostatic spinning nozzle for controlling electric field distribution under fixed spinning solution curvature and application thereof | |
| CN111455479A (en) | Groove type electrostatic spinning device for reducing viscosity of solution | |
| CN113398812A (en) | Continuous production machine and production method for silicon-carbon negative electrode material of lithium battery | |
| CN211814726U (en) | Telescopic large-batch free liquid level electrostatic spinning device | |
| WO2022126818A1 (en) | Rolling-type electrostatic spinning device with sawtooth grooves and gear | |
| CN105648548A (en) | Tapered-bulge roller type electrostatic spinning device and method for preparing nanofiber membrane by adopting device | |
| CN108642575B (en) | Electrostatic spinning method for preparing uniform nanofibers in batches through electrostatic spinning device | |
| CN105040161A (en) | Preparation method of high purity WO<3> mesoporous nano-belt | |
| CN112430858A (en) | Electrostatic spinning equipment | |
| CN214004861U (en) | Rotatable lifting type sawtooth electrostatic spinning device | |
| CN105755556B (en) | A kind of ring type electrostatic spinning apparatus | |
| CN112708280B (en) | Lignin fiber aerogel and preparation method and application thereof | |
| CN204918861U (en) | Totally enclosed electrostatic spinning device | |
| CN212270284U (en) | Groove type electrostatic spinning device for reducing viscosity of solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201106 Effective date of abandoning: 20230630 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201106 Effective date of abandoning: 20230630 |