An anti-volatile electrospinning generator
By setting up a high-voltage power supply and a tensioning adjustment device on the partition of the electrospinning generator, and setting up a sliding liquid coating device along the high-voltage electrode, the problem of solution concentration changes caused by solvent volatility in the needle-free electrospinning equipment is solved, the uniformity and stability of the coating liquid are achieved, and the diameter consistency of nanofibers and product quality stability are improved.
Patent Information
- Application Number
- CN202010968008.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-09-15
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2040-09-15
AI Technical Summary
The open state of the solution tank of existing needle-free electrospinning equipment leads to volatilization of solvents, resulting in changes in solution concentration, affecting the consistency of nanofiber diameter and product quality stability.
An anti-volatilization electrospinning generator is designed. By setting a high-voltage power supply and a tensioning adjustment device on the partition, and a high-voltage electrode is provided between the high-voltage power supply and a tensioning adjustment device, and a liquid coating device is provided along the high-voltage electrode. The liquid coating device can slide along the high-voltage electrode with respect to the partition, and the solution is uniformly applied to the surface of the high-voltage electrode through the closed liquid coating channel.
The uniformity and stability of the coating liquid are achieved, the solution concentration changes caused by solvent volatility during the preparation process are reduced, the consistency of nanofiber diameters and the stability of product quality are improved, and the equipment design is simplified, manufacturing costs are reduced, and cleaning is facilitated.
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Figure CN112210836B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electrospinning processing, and particularly to an anti-volatile electrospinning generator. Background Art
[0002] Electrospinning is a special fiber manufacturing process in which a polymer solution or melt is ejected and spun in a strong electric field. In recent years, preparing nanofiber materials through electrospinning technology has become one of the most important topics in the field of world material science and technology.
[0003] A traditional electrospinning system consists of a hollow needle spinneret, a pump, an electrode receiving plate, and a high-voltage power supply device. Among them, the pump is used to feed the polymer solution into the spinneret, and the high-voltage power supply device is connected between the spinneret and the electrode receiving plate. This electrospinning method is needle type. Its spinneret has a small diameter, and a high-strength electric field formed near the surface of the spinneret makes the spinneret vulnerable to corona discharge under high voltage, which will cause the diameter of the prepared nanofibers to gradually increase and the quality to gradually deteriorate.
[0004] With the gradual development of technology, needleless electrospinning technology has been applied and solved the problem of discharge caused by the spinneret being vulnerable to corona under high voltage in needle-type electrospinning. However, since most of the solution tanks of existing needleless electrospinning equipment are in an open state, during the preparation process, as electrospinning progresses, the solution concentration becomes higher and higher due to solvent volatilization, resulting in inconsistent diameters of the nanofibers obtained during different preparation times and affecting the quality stability of nanofiber products.
[0005] After patent retrieval, it is found that the publication number: CN201920619138.8, publication date: 2020-03-13, proposed a lamp housing, including: a substrate; a high-voltage power supply device provided on the substrate; a tension adjustment device provided on the substrate and spaced from the high-voltage power supply device; a high-voltage electrode, both ends of which are respectively connected to the high-voltage power supply device and the tension adjustment device and can be positively charged under high voltage under the action of the high-voltage power supply device; a coating liquid device slidably connected between the high-voltage power supply device and the tension adjustment device along the extension direction of the high-voltage electrode, a closed coating liquid channel is formed inside the coating liquid device, and the high-voltage electrode passes through the coating liquid channel, but there are problems of uneven coating liquid, difficult processing, high cost, and difficult cleaning. Summary of the Invention
[0006] The purpose of the present invention is to solve the above problems and design an anti-volatile electrospinning generator.
[0007] To achieve the above purpose, the technical solution of the present invention is that an anti-volatile electrospinning generator includes a partition board, and the following are installed on both sides of the partition board:
[0008] A high-voltage power supply, which is installed at both ends of the partition board;
[0009] A tensioning and adjusting device, which is installed on both sides of the high-voltage power supply device at one end of the partition board;
[0010] A high-voltage electrode, both ends of which are respectively connected to the high-voltage power supply device and the tensioning and adjusting device;
[0011] A coating solution device, which is arranged between the electrodes at both ends on the partition board;
[0012] A sliding device, which is installed on the other side of the partition board.
[0013] For further description of the partition board, the partition board is rectangular, and a number of parallel sliding grooves are provided on the partition board where the high-voltage electrode is located.
[0014] For further description of the high-voltage electrode, the high-voltage electrode is wound around a number of terminal posts.
[0015] For further description of the tensioning and adjusting device, the tensioning and adjusting device includes an n-shaped fixing piece, an electrode plate for connecting the high-voltage electrode is arranged on the n-shaped fixing piece, a central shaft is arranged inside the n-shaped fixing piece, a wire wheel is arranged through the central shaft, and a manually screwed knob is arranged at the lower part of the n-shaped fixing piece.
[0016] For further description of the high-voltage power supply, the high-voltage power supply includes a columnar power supply column, a wire passing hole is arranged on the power supply column, the power supply column is fixedly installed on a fixing plate through a round base, and the fixing plate is installed on the partition board.
[0017] For further description of the coating solution device, the coating solution device includes a solution fixing plate, a surplus solution tank is arranged on the solution fixing plate, a T-shaped fixing piece is installed on the solution fixing plate, a solution tank is clamped on the T-shaped fixing piece, a solution input port is arranged at one end of the solution tank, a plug is arranged at the other end of the solution tank, and an electrode passing hole is arranged on the solution tank.
[0018] For further description of the sliding device, the sliding device includes a base, a slide rail is arranged on the base, a driving motor is fixedly installed on one side surface of the slide rail, a drag chain is arranged on the other side surface of the slide rail, a sliding piece is arranged on the slide rail, a U-shaped fixing piece is fixedly connected to the upper part of the sliding piece, and the upper part of the U-shaped fixing piece is connected to the solution fixing plate.
[0019] The beneficial effects are as follows. In an anti-volatile electrospinning generator of the present invention, a high-voltage power supply device and a tensioning and adjusting device are arranged on a partition board. A high-voltage electrode is arranged between the high-voltage power supply device and the tensioning and adjusting device, and a liquid coating device is arranged along the high-voltage electrode. The liquid coating device can slide relative to the partition board along the high-voltage electrode. Since the high-voltage power supply device makes the high-voltage electrode carry a high positive charge, when the liquid coating device slides, the solution can be smeared on the surface of the high-voltage electrode through its internal closed liquid coating channel. This liquid coating method can ensure the uniformity and stability of liquid coating. The liquid coating device of the present invention is simply designed. The part for containing the solution is only a columnar solution tank, with a small manufacturing cost. One end is provided with a plug, and the other end is provided with a solution inlet, which is convenient for the operation of injecting the solution. Moreover, the solution tank is convenient for disassembly and installation, and the surface and interior are also relatively easy to clean. Brief Description of the Drawings
[0020] Figure 1 is a schematic structural diagram of the present invention;
[0021] Figure 2 is another schematic structural diagram of the present invention;
[0022] Figure 3 is Figure 1 a schematic structural diagram of part A in
[0023] Figure 4 is Figure 1 a schematic structural diagram of part B in.
[0024] In the figure, 1, partition board; 2, high-voltage power supply; 3, tensioning and adjusting device; 4, high-voltage electrode; 5, liquid coating device; 6, sliding device; 7, sliding groove; 8, n-shaped fixing part; 9, electrode plate; 10, central axis; 11, wire wheel; 12, knob; 13, power supply column; 14, wire passing hole; 15, solution fixing plate; 16, surplus liquid tank; 17, solution inlet; 18, plug; 19, electrode hole; 20, base; 21, slide rail; 22, driving motor; 23, drag chain; 24, sliding piece; 25, U-shaped fixing part. Detailed Embodiment
[0025] The present invention will be specifically described below in conjunction with the drawings. As Figures 1-4 shown, an anti-volatile electrospinning generator. The present invention is mainly divided into a partition board 1, a high-voltage power supply 2, a tensioning and adjusting device 3, a high-voltage electrode 4, a liquid coating device 5 and a sliding device 6. Below, we will introduce these structures one by one.
[0026] First, let's take a look at the partition 1. The partition 1 is mainly used to install the above-mentioned various structures and separate the partition 1, the high-voltage power supply 2, the tension adjustment device 3, the high-voltage electrode 4, the coating device 5, and the sliding device 6. The high-voltage electrode 4 uses a cable, which is wound and fixed on the terminal of the partition 1. The high-voltage electrode 4 passes through the power supply column 13 of the high-voltage power supply 2, so that the cable on the high-voltage electrode 4 is energized.
[0027] Next, let's introduce the tension adjustment device 3 and the coating device 5. The tension adjustment device 3 includes an n-shaped fixing member 8. An electrode plate 9 connected to the high-voltage electrode 4 is provided on the n-shaped fixing member 8. A central shaft 10 is provided inside the n-shaped fixing member 8. A wire wheel 11 is arranged through the central shaft 10. A manually screwed knob 12 is provided at the lower part of the n-shaped fixing member 8. The coating device 5 includes a solution fixing plate 15. A surplus liquid tank 16 is provided on the solution fixing plate 15. A T-shaped fixing member is installed on the solution fixing plate 15. A solution tank is clamped on the T-shaped fixing member. A solution inlet 17 is provided at one end of the solution tank. A plug 18 is provided at the other end of the solution tank. An electrode hole 19 is provided on the solution tank.
[0028] One end of the cable is connected to the electrode plate 9 on the tension adjustment device 3. The cable passes through the electrode plate 9 and is wound around the wire wheel 11. The tension of the cable is adjusted by manually adjusting the knob 12. After being fixedly wound and connected through the terminals at various positions, the cable further passes through the solution tank on the coating device 5, passes through the electrode hole 19 and is wound around the terminal, and then through the fixedly wound and connected terminals at various positions. Finally, the other end of the cable is connected to the electrode plate 9 on the tension adjustment device 3. The cable passes through the electrode plate 9 and is wound around the wire wheel 11. Similarly, the tension of the cable can be adjusted by manually adjusting the knob 12.
[0029] Finally, let's take a look at the sliding device 6. The sliding device 6 includes a base 20. A slide rail 21 is provided on the base 20. A driving motor 22 is fixedly installed on one side surface of the slide rail 21. A drag chain 23 is provided on the other side surface of the slide rail 21. A slide piece 24 is provided on the slide rail 21. A U-shaped fixing member 25 is fixedly connected to the upper part of the slide piece 24. The upper part of the U-shaped fixing member 25 is connected to the solution fixing plate 15. A sliding device 6 is provided on the other side of the partition 1. The slide rail 21 thereon is fixedly installed on the base 20. The slide piece 24 is driven by the motor to reciprocate on the slide rail 21. The U-shaped fixing member 25 fixedly installed at the upper end of the slide piece 24 and the solution fixing plate 15 can drive the solution tank to move synchronously with the slide piece 24. The U-shaped fixing member 25 passes through the chute 7 on the partition 1 and is fixedly connected to the solution fixing plate 15, so as to achieve the effect that the coating device 5 coats the cable on the high-voltage electrode 4 in the energized state to achieve the anti-static effect, and this coating method can avoid unnecessary waste caused by the volatilization of the coating solution.
[0030] Working principle: The high-voltage electrode 4 uses a cable, which is wound and fixed on the terminal of the partition plate 1. The high-voltage electrode 4 passes through the power supply column 13 of the high-voltage power supply 2. The cable on the high-voltage electrode 4 is energized. One end of the cable is connected to the electrode plate 9 on the tension adjusting device 3. The cable passes through the electrode plate 9 and is wound on the wire wheel 11. The tension of the cable is adjusted by manually adjusting the knob 12. After being fixedly wound and connected through the terminals at each position, the cable further passes through the solution tank on the coating device 5, passes through the electrode hole 19 and is wound on the terminal again. Then, through the fixed winding connection of the terminals at each position, finally, the other end of the cable is connected to the electrode plate 9 on the tension adjusting device 3. The cable passes through the electrode plate 9 and is wound on the wire wheel 11. Similarly, the tension of the cable can be adjusted by manually adjusting the knob 12. A sliding device 6 is arranged on the other side of the partition plate 1. The slide rail 21 thereon is fixedly installed on the base 20. The slide plate 24 is driven by a motor to reciprocate on the slide rail 21. The U-shaped fixing part 25 and the solution fixing plate 15 fixedly installed at the upper end of the slide plate 24 can drive the solution tank to move synchronously with the slide plate 24, so as to achieve the coating of the cable on the energized high-voltage electrode 4 by the coating device 5, achieving the antistatic effect, and this coating method can avoid unnecessary waste caused by the volatilization of the coating solution.
[0031] The above technical solution only reflects the preferred technical solution of the technical solution of the present invention. Some changes that may be made to some parts by those skilled in the art of the present technology all reflect the principle of the present invention and fall within the protection scope of the present invention.
Claims
1. A volatile-proof electrospinning generator, comprising a partition plate (1), characterized in that, Mounted on both sides of the partition plate (1) are: A high-voltage power supply (2), which is installed at both ends of the partition plate (1); A tensioning and adjusting device (3), which is installed on both sides of the high-voltage power supply (2) device at one end of the partition plate (1); A high-voltage electrode (4), the two ends of which are respectively connected to the high-voltage power supply (2) device and the tensioning and adjusting device (3); A coating solution device (5), which is arranged between the electrodes at both ends of the partition plate (1); A sliding device (6), which is installed on the other side of the partition plate (1); The partition plate (1) is rectangular, and a number of parallel sliding grooves (7) are provided on the partition plate (1) where the high-voltage electrode (4) is located; The high-voltage electrode (4) is wound and fixed on a number of terminal posts; The tensioning and adjusting device (3) includes an n-shaped fixing member (8), an electrode plate (9) for connecting the high-voltage electrode (4) is provided on the n-shaped fixing member (8), a central shaft (10) is arranged inside the n-shaped fixing member (8), a wire wheel (11) is arranged through the central shaft (10), and a manually screwed knob (12) is arranged at the lower part of the n-shaped fixing member (8); The high-voltage power supply (2) includes a columnar power supply column (13), a wire passing hole (14) is provided on the power supply column (13), the power supply column (13) is fixedly installed on a fixing plate through a round base, and the fixing plate is installed on the partition plate (1); The coating solution device (5) includes a solution fixing plate (15), a surplus solution groove (16) is provided on the solution fixing plate (15), a T-shaped fixing member is installed on the solution fixing plate (15), a solution tank is clamped on the T-shaped fixing member, a solution input port (17) is arranged at one end of the solution tank, a plug (18) is arranged at the other end of the solution tank, and an electrode passing hole (19) is arranged on the solution tank; The sliding device (6) includes a base (20), a slide rail (21) is provided on the base (20), a driving motor (22) is fixedly installed on one side surface of the slide rail (21), a drag chain (23) is arranged on the other side surface of the slide rail (21), a sliding piece (24) is arranged on the slide rail (21), a U-shaped fixing member (25) is fixedly connected to the upper part of the sliding piece (24), and the upper part of the U-shaped fixing member (25) is connected to the solution fixing plate (15); The tension adjusting device (3) includes an n-shaped fixing member (8). An electrode plate (9) for connecting the high-voltage electrode (4) is provided on the n-shaped fixing member (8). A central shaft (10) is arranged inside the n-shaped fixing member (8). A wire wheel (11) is arranged through the central shaft (10). A manually screwed knob (12) is provided at the lower part of the n-shaped fixing member (8). The coating liquid device (5) includes a solution fixing plate (15). A surplus liquid tank (16) is provided on the solution fixing plate (15). A T-shaped fixing member is installed on the solution fixing plate (15). A solution tank is clamped on the T-shaped fixing member. A solution input port (17) is provided at one end of the solution tank. A plug (18) is provided at the other end of the solution tank. An electrode passing hole (19) is provided on the solution tank. One end of the high-voltage electrode (4) is connected to the electrode plate (9) on the tension adjusting device (3). The high-voltage electrode (4) passes through the electrode plate (9) and is wound around the wire wheel (11). The tension degree of the high-voltage electrode is adjusted by manually adjusting the knob (12). After being fixedly wound and connected through the connection terminals at various positions, the high-voltage electrode further passes through the solution tank on the coating liquid device (5), passes through the electrode hole (19) and is wound around the connection terminal again. Then, through the fixed winding connection of the connection terminals at various positions, finally, the other end of the high-voltage electrode is connected to the electrode plate (9) on the tension adjusting device (3). The high-voltage electrode passes through the electrode plate (9) and is wound around the wire wheel (11). Similarly, the tension degree of the high-voltage electrode can be adjusted by manually adjusting the knob (12).
Citation Information
Patent Citations
Needleless reciprocating type electrostatic spinning device
CN210140650U
Anti-volatilization type electrostatic spinning generator
CN212771076U