An ultrasonic-assisted electrospinning apparatus and method of use

Abstract

This invention discloses an ultrasonic-assisted electrospinning device and its usage method. The ultrasonic-assisted electrospinning device includes a feeding module, a drive module, a central control module, and an electrospinning module. An ultrasonic device is incorporated into the electrospinning module. The central control module closely monitors the particle size and viscosity of the spinning solution using a laser particle size analyzer and a viscosity probe, automatically setting different ultrasonic powers based on the different properties of the spinning solution. The drive module also drives the piston to advance at a uniform speed and can control the piston to advance at different speeds. This invention reduces the viscosity of the spinning solution through the action of ultrasound, thereby allowing the use of a more viscous reaction solution, expanding the selectivity of the reaction solution. Furthermore, the action of ultrasound can reduce the diameter of the spun fibers, improve the spinning structure, and enhance the mechanical properties of the spun fibers.

Description

Technical Field

[0001] This invention relates to a spinning device, specifically to an ultrasonic-assisted electrospinning device and its usage method. Background Technology

[0002] Electrospinning is a low-cost and simple fiber manufacturing process. Its principle is to apply a high-voltage electric field to a polymer solution or melt. Under the action of the electric field, the droplets at the nozzle will change from a spherical shape to a conical shape and extend from the tip of the cone to obtain fiber filaments. In this way, polymer filaments with nanoscale diameters can be produced.

[0003] Electrospinning is one of the fastest and simplest methods for preparing micro and nanofibers. It was first proposed in 1745 and has attracted widespread research and attention in fields such as military equipment, biomaterials, and conductive polymers since the 1990s.

[0004] Electrospinning is affected by many factors, including the properties of raw materials, the strength of the electric field, and the ambient temperature. Among these, the viscosity of the spinning solution has the most significant impact on spinning. Traditional electrospinning can only use low-viscosity spinning solutions. Excessive viscosity can clog the spinning needles, causing unstable solution flow and interrupting the spinning process, thus affecting the performance of the spun product. Furthermore, the fibers obtained by electrospinning have significant structural defects and poor mechanical properties. Summary of the Invention

[0005] This invention addresses the problem that traditional electrospinning methods can only use low-viscosity spinning solutions, and that excessively viscous spinning solutions can clog the spinning needles, resulting in fiber structures with significant defects and poor mechanical properties. The invention provides an ultrasonic-assisted electrospinning device and its usage method.

[0006] An ultrasonic-assisted electrospinning device includes a feeding module, a drive module, a central control module, and an electrospinning module;

[0007] The electrospinning module includes a syringe and an amplitude transformer. A piston is installed inside the syringe, and the amplitude transformer passes through the piston and communicates with the inside of the syringe. The radial movement of the amplitude transformer can drive the radial movement of the piston. The amplitude transformer is connected to a transducer, and the transducer is also connected to an ultrasonic controller. The needle of the syringe is connected to an adjustable high-voltage power supply, and the adjustable high-voltage power supply is connected to an electrospinning receiving device. Turning on the adjustable high-voltage power supply can create a high-voltage electric field between the needle and the electrospinning receiving device.

[0008] The central control module includes a control console, which is connected to a viscosity testing probe, a laser particle size analyzer, and an ultrasonic controller. The viscosity testing probe is placed inside the syringe, and the laser particle size analyzer is placed outside the syringe.

[0009] The feeding module is connected to the inside of the syringe;

[0010] The drive module is connected to the amplitude transformer, and the radial movement of the drive module along the syringe drives the radial movement of the amplitude transformer.

[0011] The feeding module includes a storage chamber, which is connected to a feeding pipe. A feeding pump is installed in the middle of the feeding pipe. One end of the feeding pipe passes through a piston and is connected to a syringe. There is a feeding port at the top of the storage chamber, and the feeding port is equipped with a matching plug.

[0012] The drive module includes a lead screw stepper motor, which is connected to the screw via a motor cable. The screw is fixed on the base of the lead screw stepper motor and connected to the bottom of the motion plate. The rotation of the screw can drive the motion plate to move radially along the syringe. The top of the motion plate is provided with a double-layered hollow semi-circular disk for placing an auxiliary disk. The auxiliary disk is fixed to the end of the amplitude transformer near the transducer.

[0013] The connection between the screw and the bottom of the motion plate is as follows: a nut is installed on the screw, and the outer diameter thread of the screw matches the inner diameter thread of the nut; a motion plate base is installed at the bottom of the motion plate, and a movable nut is embedded inside the motion plate base. The movable nut can rotate freely along the vertical plane of the axial direction of the motion plate base, but the axial relative position between the movable nut and the motion plate base remains unchanged, and the outer diameter thread of the nut matches the inner diameter thread of the movable nut.

[0014] The spacing between the two hollow semicircular disks at the top of the motion plate matches the thickness of the auxiliary disk, which allows the double-layered hollow semicircular disks to hold the auxiliary disk in place. The inner diameter of the hollow semicircular disks matches the outer diameter of the amplitude transformer.

[0015] The electrospinning receiving device is fixedly supported by a receiving plate base, and aluminum foil is laid on the side of the electrospinning receiving device near the needle tip.

[0016] Both the needle tip and the aluminum foil of the electrospinning receiving device are connected to an adjustable high-voltage power supply via high-voltage cables, the ends of which are alligator clips.

[0017] The transducer and the ultrasonic controller are connected via an ultrasonic cable.

[0018] The syringe is fixed with a support rod, and a support base is installed below the support rod.

[0019] The method of using the ultrasonic-assisted electrospinning device includes the following steps:

[0020] Step 1: Pour the spinning solution into the storage chamber and seal it with the plug;

[0021] Step 2: Turn on the feed pump. The spinning solution in the storage chamber enters the syringe through the feed pipe. After feeding is complete, turn off the feed pump.

[0022] Step 3: Turn on the adjustable high-voltage power supply to create a high-voltage electric field between the electrospinning receiver and the needle.

[0023] Step 4: Turn on the control panel and ultrasonic controller. The viscosity detection probe and laser particle size analyzer connected to the control panel detect the viscosity and particle size of the spinning solution inside the syringe. When the viscosity and particle size of the spinning solution meet the set conditions, the ultrasonic controller will start the corresponding power. At this time, the amplitude rod starts to vibrate. The vibration of the amplitude rod will drive the vibration of the piston, thereby driving the vibration of the spinning solution in the syringe to achieve the ultrasonic effect.

[0024] Step 5: Turn on the lead screw stepper motor. The lead screw will rotate and drive the nut to rotate and move, which in turn drives the movable nut to rotate and move, which in turn drives the radial movement of the moving plate. The moving plate then drives the amplitude rod to move radially, thereby achieving the effect of piston squeezing the spinning liquid.

[0025] Step Six: The spinning solution is ejected from the needle under the action of extrusion and ultrasound, and spinning is completed on the aluminum foil surface of the electrospinning receiving device under the action of a high voltage electric field;

[0026] Step 7: After spinning is complete, turn off the ultrasonic controller, control console and adjustable high voltage power supply, and then control the lead screw stepper motor to drive the screw to rotate in response, driving the motion plate, amplitude rod and piston to move in the opposite direction to complete one cycle.

[0027] The flow rate of the spinning solution entering the syringe is controlled by the feed pump;

[0028] The viscosity detection probe and laser particle size analyzer detect the spinning solution inside the syringe and feed the detection information back to the control console, which then controls the power of the ultrasonic controller.

[0029] The control panel will activate the ultrasonic controller only when the laser particle size analyzer detects that the particle size of the spinning solution is below 500 nm and the viscosity detection probe detects that the viscosity of the spinning solution is below 800 Pa·s.

[0030] When the viscosity detection probe detects that the viscosity of the spinning solution is 500-800 Pa·s, the control panel will set the power of the ultrasonic controller to 200W.

[0031] When the viscosity detection probe detects that the viscosity of the spinning solution is 100-500 Pa·s, the control panel will set the power of the ultrasonic controller to 100W.

[0032] When the viscosity detection probe detects that the viscosity of the spinning solution is less than 100 Pa·s, the control panel will set the power of the ultrasonic controller to 50W.

[0033] The ultrasonic power of the amplitude transformer is controlled by an ultrasonic controller to control the ultrasonic power of the spinning solution under different conditions.

[0034] The voltage of the high-voltage electric field applied between the electrospinning receiving device and the needle is controlled by an adjustable high-voltage power supply.

[0035] By controlling the screw with a lead screw stepper motor to achieve bidirectional rotation at different speeds, the nut can achieve radial movement at different speeds, which in turn can be transformed into radial movement of the moving plate at different speeds, and finally into radial movement of the piston at different speeds, thus achieving spinning at different speeds.

[0036] Compared with the prior art, the beneficial effects of this invention are that an ultrasonic device is added to the electrospinning module. The ultrasonic action can reduce the viscosity of the spinning solution, expand the selectivity of the spinning solution, and thus select the spinning solution with a higher viscosity. In addition, the ultrasonic action can reduce the diameter of the spun fibers, improve the spinning structure, and improve the mechanical properties of the spun fibers. A central control module is also set up, which can closely monitor the particle size and viscosity of the spinning solution through a laser particle size analyzer and a viscosity detection probe, so that the particle size and viscosity of the spinning solution are more accurate, thereby improving the mechanical properties of the obtained fibers.

[0037] Furthermore, a drive module is set up to drive the piston to advance at a uniform speed, and can also control the piston to advance at different speeds to achieve different spinning requirements; the central control module can automatically set different ultrasonic power according to the different properties of the spinning solution, which can accurately and quickly achieve the spinning standard of the spinning solution. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below:

[0039] Figure 1 This is a schematic diagram of the overall side view structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the overall side view structure of the present invention;

[0041] Figure 3 for Figure 2 A schematic diagram of the auxiliary disk and motion plate at point A.

[0042] Figure 4 for Figure 2 A schematic diagram of the structure of the motion plate base and screw at point B;

[0043] In the diagram: 1. Base; 2. Storage chamber; 3. Plug; 4. Feed pipe; 5. Feed pump; 6. Ultrasonic controller; 7. Lead screw stepper motor; 8. Motor cable; 9. Lead screw stepper motor base; 10. Screw; 11. Ultrasonic cable; 12. Transducer; 13. Amplifier rod; 14. Auxiliary disc; 15. Motion plate; 16. Piston; 17. Support base; 18. Support rod; 19. Syringe; 20. Needle; 21. Adjustable high-voltage power supply; 22. High-voltage cable; 23. Receiver plate base; 24. Electrospinning receiver; 25. Motion plate base; 26. Nut; 27. Movable nut. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings:

[0045] Please see Figures 1-2 The present invention provides an ultrasonic-assisted electrospinning device, including a feeding module, a driving module, a central control module and an electrospinning module.

[0046] The electrospinning module includes a syringe 19 with a needle 20. A piston 16 is installed inside the syringe 19. One end of an amplitude rod 13 is inserted into the middle of the piston 16 in the syringe 19 and tightly connected. The radial movement of the amplitude rod 13 can drive the radial movement of the piston 16. The amplitude rod 13 is connected to the transducer 12. An auxiliary disk 14 of a certain thickness is provided at one end of the amplitude rod 13 near the transducer 12. The auxiliary disk 14 is tightly fixed to the amplitude rod 13 and is coaxial with the amplitude rod 13. The transducer 12 is connected to the ultrasonic controller 6 through an ultrasonic cable 11.

[0047] The syringe 19 is fixed by a support rod 18, and a support base 17 is provided below the support rod 18.

[0048] The needle 20 of the syringe 19 is equipped with an electrospinning receiver 24. Turning on the adjustable high-voltage power supply 21 can create a high-voltage electric field between the needle 20 and the electrospinning receiver 24. The electrospinning receiver 24 is fixedly supported by a receiving plate base 23. A layer of aluminum foil is laid on the side of the electrospinning receiver 24 near the needle 20. Both the needle 20 and the aluminum foil of the electrospinning receiver 24 are connected to the adjustable high-voltage power supply 21 through a high-voltage cable 22. The end of the high-voltage cable 22 is an alligator clip.

[0049] The drive module includes a lead screw stepper motor 7, which is connected to a screw 10 via a motor cable 8. The screw 10 is fixed in the middle of the lead screw stepper motor base 9 and is connected to the bottom of the motion plate 15. The rotation of the screw 10 can drive the motion plate 15 to move radially along the syringe 19.

[0050] like Figure 4As shown, the connection between the screw 10 and the bottom of the moving plate 15 is as follows: a nut 26 is provided on the screw 10, and the outer diameter thread of the screw 10 matches the inner diameter thread of the nut 26; when the screw 10 and the nut 26 are engaged, the rotation of the screw 10 can drive the rotation of the nut 26; a moving plate base 25 is provided at the bottom of the moving plate 15, and a movable nut 27 is embedded inside the moving plate base 25. The movable nut 27 can rotate freely along the vertical plane of the axial direction of the moving plate base 25, but the axial relative position of the movable nut 27 and the moving plate base 25 remains unchanged. The outer diameter thread of the nut 26 matches the inner diameter thread of the movable nut 27. When the nut 26 and the movable nut 27 are engaged, the rotation of the nut 26 can drive the rotation of the movable nut 27. In this way, the rotation of the movable nut 27 is converted into the radial movement of the moving plate base 25, thereby driving the radial movement of the moving plate 15.

[0051] like Figure 3 As shown, the top of the motion plate 15 consists of a double-layered hollow semi-circular disk with a certain diameter gap at its center. The two hollow semi-circular disks are identical in size and coaxial. The distance between the two disks matches the thickness of the auxiliary disk 14 on the amplitude transformer 13. The outer diameter of the hollow semi-circular disk is slightly larger than the diameter of the auxiliary disk 14 on the amplitude transformer 13. The diameter of the semi-circular gap at the center of the two layers of disks matches the outer diameter of the amplitude transformer 13. The double-layered hollow semi-circular disk at the top of the motion plate 15 can tightly engage with the auxiliary disk 14 on the amplitude transformer 13. The auxiliary disk 14 on the amplitude transformer 13 can slowly descend from directly above the center of the double-layered hollow semi-circular disk and engage with it. In this way, the radial movement of the motion plate 15 is converted into the radial movement of the amplitude transformer 13.

[0052] The feeding module includes a storage chamber 2, which is connected to one end of a feeding pipe 4. A feeding pump 5 is installed in the middle of the feeding pipe 4. The other end of the feeding pipe 4 passes through a piston 16 and is connected to the spinning chamber of a syringe 19. The top of the storage chamber 2 has a feeding port, and the feeding port has a matching plug 3.

[0053] Storage chamber 2, ultrasonic controller 6, lead screw stepper motor 7, lead screw stepper motor base 9, support base 17, adjustable high voltage power supply 21, and receiver board base 23 are all placed on base 1.

[0054] The central control module includes a console, a viscosity detection probe, a laser particle size analyzer, and an ultrasonic controller 6 in the electrospinning module, all of which are connected to the console. The viscosity detection probe is placed inside the syringe 19, and the laser particle size analyzer is placed outside the syringe 19.

[0055] A method of using an ultrasonic-assisted electrospinning device includes the following steps:

[0056] Step 1: Pull out the plug 3 on the feed port, pour the spinning solution into the storage chamber 2, and then seal the plug 3;

[0057] Step 2: Turn on the feed pump 5. The spinning solution in the storage chamber 2 enters the syringe 19 through the feed pipe 4. After the injection is complete, turn off the feed pump 5.

[0058] Step 3: Secure the auxiliary disc 14 on the amplitude rod 13 to the double-layered hollow semi-circular disc on the top of the motion plate 15, engage the movable nut 27 and nut 26 on the motion plate base 25, and engage the nut 27 with the screw 10.

[0059] Step 4: Connect the two ends of the adjustable high-voltage power supply 21 to the electrospinning receiver 24 and the needle 20 respectively through the high-voltage cable 22, turn on the adjustable high-voltage power supply 21, and form a high-voltage electric field between the electrospinning receiver 24 and the needle 20.

[0060] Step 5: Turn on the control console and ultrasonic controller 6. The viscosity detection probe and laser particle size analyzer connected to the control console detect the viscosity and particle size of the spinning solution inside the syringe 19. When the viscosity and particle size meet the requirements, the ultrasonic controller 6 will start to the corresponding power. At this time, the amplitude transformer 13 starts to work. The vibration of the amplitude transformer 13 will drive the vibration of the piston 16, thereby driving the vibration of the spinning solution in the syringe 19, thus achieving the ultrasonic effect.

[0061] Step 6: Turn on the lead screw stepper motor 7, and the screw 10 will rotate accordingly, which will drive the nut 26 to rotate and move, which in turn will drive the movable nut 27 to rotate and move, which in turn will drive the shaft of the motion plate 15 to move. The double-layer semi-circular disk at the top of the motion plate 15 will then drive the amplitude rod 13 to move radially, thereby achieving the effect of the piston 16 squeezing the spinning liquid.

[0062] Step 7: The spinning solution is ejected from the needle 20 under the action of extrusion and ultrasound, and spinning is completed on the aluminum foil surface of the electrospinning receiving device 24 under the action of high voltage electric field;

[0063] Step 8: After spinning is completed, turn off the ultrasonic controller 6, the control console and the adjustable high voltage power supply 21, and then control the lead screw stepper motor 7 to drive the screw 10 to rotate in response, which drives the motion plate 15, the amplitude rod 13 and the piston 16 to move in the opposite direction to complete one cycle.

[0064] The viscosity and particle size of the spinning solution inside the syringe 19 can be detected by a viscosity detection probe and a laser particle size analyzer, and the viscosity and particle size information is transmitted to the control console. The control console will only activate the ultrasonic controller 6 when the particle size of the spinning solution is below 500 nm and the viscosity is below 800 Pa·s. When the viscosity detection probe detects a viscosity of 500-800 Pa·s, the control console will set the power of the ultrasonic controller 6 to 200 W; when the viscosity detection probe detects a viscosity of 100-500 Pa·s, the control console will set the power of the ultrasonic controller 6 to 100 W; and when the viscosity detection probe detects a viscosity of less than 100 Pa·s, the control console will set the power of the ultrasonic controller 6 to 50 W.

[0065] The flow rate of the spinning solution entering the syringe 19 can be controlled by the feed pump 5.

[0066] The ultrasonic power of the amplitude transformer 13 can be controlled by the ultrasonic controller 6, thereby achieving control of the ultrasonic power of the spinning solution at different levels.

[0067] The voltage applied to the high-voltage electric field between the electrospinning receiver 24 and the needle 20 can be controlled by the adjustable high-voltage power supply 21.

[0068] The screw 10 can be controlled by the lead screw stepper motor 7 to achieve bidirectional rotation at different speeds, thereby realizing the radial movement of the nut 26 at different speeds, which in turn is transformed into the radial movement of the motion plate 15 at different speeds, and finally into the radial movement of the piston 16 at different speeds, ultimately achieving spinning at different speeds.

[0069] The information of the spinning solution inside the syringe 19 can be detected by a viscosity detection probe and a laser particle size analyzer and fed back to the control console, which then controls the power of the ultrasonic controller 6.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make modifications or equivalent substitutions to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the protection scope of the claims of the present invention pending approval.

Claims

1. An ultrasonic-assisted electrospinning device, characterized in that, It includes a feeding module, a drive module, a central control module, and an electrospinning module; The electrospinning module includes a syringe (19) and an amplitude transformer (13). A piston (16) is installed inside the syringe (19). The amplitude transformer (13) passes through the piston (16) and communicates with the inside of the syringe (19). The radial movement of the amplitude transformer (13) can drive the radial movement of the piston (16). The amplitude transformer (13) is connected to the transducer (12). The transducer (12) is also connected to the ultrasonic controller (6). The needle (20) of the syringe (19) is connected to the adjustable high-voltage power supply (21). The adjustable high-voltage power supply (21) is connected to the electrospinning receiver (24). Turning on the adjustable high-voltage power supply (21) can form a high-voltage electric field between the needle (20) and the electrospinning receiver (24). The central control module includes a control console, which is connected to a viscosity detection probe, a laser particle size analyzer and an ultrasonic controller (6) respectively. The viscosity detection probe is placed inside the syringe (19) and the laser particle size analyzer is placed outside the syringe (19). The feeding module is internally connected to the syringe (19); The drive module is connected to the amplitude rod (13), and the drive module drives the amplitude rod (13) to move radially along the syringe (19).

2. The ultrasonic-assisted electrospinning equipment according to claim 1, characterized in that, The feeding module includes a storage chamber (2), which is connected to the feeding pipe (4). A feeding pump (5) is installed in the middle of the feeding pipe (4). One end of the feeding pipe (4) passes through a piston (16) and is connected to the syringe (19). The top of the storage chamber (2) has a feeding port, and the feeding port has a matching plug (3).

3. The ultrasonic-assisted electrospinning equipment according to claim 2, characterized in that, The drive module includes a lead screw stepper motor (7), which is connected to the screw (10) via a motor cable (8). The screw (10) is fixed on the lead screw stepper motor base (9) and connected to the bottom of the motion plate (15). The rotation of the screw (10) can drive the motion plate (15) to move radially along the syringe (19). The top of the motion plate (15) is provided with a double-layered hollow semi-circular disk for placing an auxiliary disk (14). The auxiliary disk (14) is fixed to the end of the amplitude transformer (13) near the transducer (12).

4. The ultrasonic-assisted electrospinning equipment according to claim 3, characterized in that, The connection between the screw (10) and the bottom of the motion plate (15) is as follows: a nut (26) is provided on the screw (10), and the outer diameter thread of the screw (10) and the inner diameter thread of the nut (26) are matched; a motion plate base (25) is provided at the bottom of the motion plate (15), and a movable nut (27) is embedded inside the motion plate base (25). The movable nut (27) can rotate freely along the vertical plane of the axial direction of the motion plate base (25), but the axial relative position of the movable nut (27) and the motion plate base (25) remains unchanged, and the outer diameter thread of the nut (26) and the inner diameter thread of the movable nut (27) are matched.

5. The ultrasonic-assisted electrospinning equipment according to claim 3, characterized in that, The distance between the two hollow semicircular disks at the top of the motion plate (15) matches the thickness of the auxiliary disk (14), which enables the double-layered hollow semicircular disks to hold the auxiliary disk (14) in place. The inner diameter of the hollow semicircular disks matches the outer diameter of the amplitude rod (13).

6. The ultrasonic-assisted electrospinning equipment according to claim 1, characterized in that, The electrospinning receiving device (24) is fixedly supported by the receiving plate base (23) below, and aluminum foil is laid on the side of the electrospinning receiving device (24) near the needle (20); The aluminum foil of the needle (20) and the electrospinning receiver (24) are both connected to the adjustable high-voltage power supply (21) via a high-voltage cable (22), the end of which is an alligator clip.

7. The ultrasonic-assisted electrospinning equipment according to claim 1, characterized in that, The transducer (12) is connected to the ultrasonic controller (6) via an ultrasonic cable (11).

8. The ultrasonic-assisted electrospinning equipment according to claim 1, characterized in that, The syringe (19) is fixed with a support rod (18), and a support base (17) is provided below the support rod (18).

9. A method of using an ultrasonic-assisted electrospinning device according to any one of claims 3-5, characterized in that, Includes the following steps: Step 1: Pour the spinning solution into the storage chamber (2) and seal it with a plug (3); Step 2: Turn on the feed pump (5), and the spinning solution in the storage chamber (2) enters the syringe (19) through the feed pipe (4). After the feeding is completed, turn off the feed pump (5). Step 3: Turn on the adjustable high-voltage power supply (21) to form a high-voltage electric field between the electrospinning receiving device (24) and the needle (20); Step 4: Turn on the control console and ultrasonic controller (6). The viscosity detection probe and laser particle size analyzer connected to the control console detect the viscosity and particle size of the spinning solution inside the syringe (19). When the viscosity and particle size of the spinning solution meet the set conditions, the ultrasonic controller (6) will start the corresponding power. At this time, the amplitude rod (13) will start to vibrate. The vibration of the amplitude rod (13) will drive the vibration of the piston (16), thereby driving the vibration of the spinning solution in the syringe (19) to achieve the ultrasonic effect. Step 5: Turn on the lead screw stepper motor (7), the screw (10) rotates accordingly, and at the same time drives the nut (26) to rotate and move, which in turn drives the movable nut (27) to rotate and move, which in turn drives the moving plate (15) to move radially. The moving plate (15) then drives the amplitude rod (13) to move radially, thereby achieving the effect of the piston (16) squeezing the spinning liquid. Step 6: The spinning solution is ejected from the needle (20) under the action of extrusion and ultrasound, and spinning is completed on the aluminum foil surface of the electrospinning receiving device (24) under the action of high voltage electric field; Step 7: After spinning is completed, turn off the ultrasonic controller (6), the control console and the adjustable high voltage power supply (21), and then control the screw stepper motor (7) to drive the screw (10) to rotate in response, which drives the motion plate (15), the amplitude rod (13) and the piston (16) to move in the opposite direction to achieve one cycle.

10. The method of using an ultrasonic-assisted electrospinning device according to claim 9, characterized in that, The flow rate of the spinning solution into the syringe (19) is controlled by the feed pump (5); The viscosity detection probe and laser particle size analyzer detect the spinning solution inside the syringe (19) and feed the detection information back to the control console, which then controls the power of the ultrasonic controller (6). The control panel will activate the ultrasonic controller (6) when the laser particle size analyzer detects that the particle size of the spinning solution is below 500 nm and the viscosity detection probe detects that the viscosity of the spinning solution is below 800 Pa·s. When the viscosity detection probe detects that the viscosity of the spinning solution is 500-800 Pa·s, the control panel will set the power of the ultrasonic controller (6) to 200W. When the viscosity detection probe detects that the viscosity of the spinning solution is 100-500 Pa·s, the control panel will set the power of the ultrasonic controller (6) to 100W. When the viscosity detection probe detects that the viscosity of the spinning solution is less than 100 Pa·s, the control panel will set the power of the ultrasonic controller (6) to 50W. The ultrasonic power of the amplitude transformer (13) is controlled by the ultrasonic controller (6) to control the ultrasonic power of the spinning solution under different conditions. The voltage of the high-voltage electric field applied between the electrospinning receiving device (24) and the needle (20) is controlled by an adjustable high-voltage power supply (21); By controlling the screw (10) with the lead screw stepper motor (7) to achieve bidirectional rotation at different speeds, the nut (26) can achieve radial movement at different speeds, which in turn transforms into radial movement at different speeds of the moving plate (15), and finally into radial movement at different speeds of the piston (16), thus achieving spinning at different speeds.

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