Portable device combining electrostatic spraying and spinning processes

Abstract

The utility model discloses a portable device combining electrostatic spraying and spinning processes, which comprises a body, and a liquid carrying cavity and a high-voltage module are arranged in the body. The liquid carrying cavity comprises an atomizing liquid carrying cavity and a spinning liquid carrying cavity; a support is arranged at the end of the body, and an atomizing nozzle and a spinning nozzle are arranged on the support. The atomizing nozzle and the spinning nozzle are respectively connected with the atomizing liquid carrying cavity and the spinning liquid carrying cavity; the atomizing nozzle and the spinning nozzle are electrically connected with the high-pressure module respectively; the atomization liquid carrying cavity and the spinning liquid carrying cavity are connected with an atomization driving device and a spinning driving device respectively. The electrostatic spinning and the electrostatic spraying are combined together, so that a nanofiber membrane can be generated on the surface of an acceptor in situ by a fiber polymer and nano particles, and the electrostatic spinning device is highly integrated, convenient to carry and capable of being applied to the scenes of medical treatment, industrial production and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of biological composite process fiber membranes, in particular to a portable device for composite electrostatic spraying and spinning processes. Background Art

[0002] The principle of electrostatic spraying is to use a high-voltage electrostatic field to disperse the liquid into fine particles and deposit them on the surface to be covered. The electrostatic sprayer is mainly composed of five parts: a high-voltage generator, a nozzle, a liquid spray cup, a high-voltage electrode, and a grounding electrode. Among them, the high-voltage generator converts the low-voltage power supply into a high-voltage DC power supply, the nozzle is used to spray the liquid and form fine particles, the high-voltage electrode generates an electric field so that the sprayed liquid particles acquire an electrostatic charge, and the grounding electrode attracts the charged liquid particles and deposits them evenly on the surface of the workpiece. When the paint particles are negatively charged, they fly toward the workpiece under the action of electrostatic force and compressed air, and form a uniform coating on the surface of the recipient.

[0003] Electrospinning is one of the most commonly used methods for preparing nanofiber membranes. It refers to a technology in which a polymer solution forms a jet stream under high-voltage static electricity. These jets are stretched at high speed by electric field force, and the solvent evaporates and refines to form nanofibers. The prepared nanofiber membrane has the advantages of high porosity, small fiber diameter, large specific surface area, good connectivity, and controllable packing density. Nanoparticles can be further added to the surface or inside of the nanofiber to modify the nanofiber membrane to give it better performance and obtain a composite nanofiber membrane with a specific microstructure. For example, inorganic oxides, inorganic nanomaterials, carbon materials, inorganic salts, drug-loaded microspheres, micelles, microcapsules, etc. can be dispersed in a polymer solution, and composite nanofibers with special functions can be obtained by mixed electrospinning.

[0004] The study found that the two technologies can be innovatively combined to develop new high-performance and multifunctional nanomaterials. Electrostatic spraying can be used to create micro / nanoparticle modifications on nanofiber membranes by adjusting parameters, giving electrospun membranes better multifunctionality. In addition, using electrospun nanofibers as a matrix can make the micro / nanoparticles more evenly distributed, prevent micro / nanoparticles from agglomerating, and improve the performance of the micro / nanoparticles themselves, thereby improving the performance of the entire composite material. Some domestic technologies combine ultrasonic atomization with electrospinning to obtain polymer fibers. This method requires two independent systems, and the equipment is large in size and cannot meet the needs of easy carrying and in-situ molding. Utility Model Content

[0005] To solve the above problems, the utility model provides a portable device of composite electrostatic spraying and spinning process, which combines electrostatic spinning and electrostatic spraying together, so that fiber polymers and nanoparticles can generate nanofiber membranes in situ on the surface of the receptor. It is highly integrated and easy to carry, and can be used in medical, industrial production and other scenarios.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a portable device for composite electrostatic spraying and spinning process, comprising a main body, in which a liquid carrier chamber and a high-voltage module are arranged; the liquid carrier chamber comprises an atomizing liquid carrier chamber and a spinning liquid carrier chamber; a bracket is arranged at the end of the main body, and an atomizing nozzle and a spinning nozzle are arranged on the bracket; the atomizing nozzle and the spinning nozzle are respectively connected to the atomizing liquid carrier chamber and the spinning liquid carrier chamber; the atomizing nozzle and the spinning nozzle are respectively electrically connected to the high-voltage module; the atomizing liquid carrier chamber and the spinning liquid carrier chamber are respectively connected to the atomizing drive device and the spinning drive device; the atomizing drive device, the spinning drive device, and the high-voltage module are respectively electrically connected to the control board; the atomizing drive device, the spinning drive device, the high-voltage module, and the control board are respectively electrically connected to the power module; the atomizing drive device, the spinning drive device, the high-voltage module, and the control board are respectively electrically connected to the power module; the atomizing drive device, the spinning drive device, the power module, and the control board are arranged in the bracket.

[0007] As a preferred technical solution of the utility model: the atomizing nozzle includes a first nozzle body, on which a first infusion port, a first high-voltage terminal and a plurality of first spray needles are provided, the first infusion port is connected to the atomizing liquid-carrying cavity through a pipeline, the first terminal is electrically connected to the high-voltage module, and the first spray needle is electrically connected to the first high-voltage terminal.

[0008] As a preferred technical solution of the present utility model: the spinning nozzle includes a second nozzle body, on which a second infusion port, a second high-voltage terminal and a plurality of second spray needles are provided, the second infusion port is connected to the spinning liquid carrier cavity through a pipeline, the second terminal is electrically connected to the high-voltage module, and the second spray needle is electrically connected to the second high-voltage terminal.

[0009] As a preferred technical solution of the utility model: the atomization drive device includes a first stepper motor, the first stepper motor includes a first screw rod, a first piston is provided at one end of the atomization liquid carrier chamber, and the first screw rod is connected to the first piston; the spinning drive device includes a second stepper motor, the second stepper motor includes a second screw rod, a second piston is provided at one end of the spinning liquid carrier chamber, and the second screw rod is connected to the second piston.

[0010] As a preferred technical solution of the utility model: the first stepper motor and the second stepper motor are arranged inside the body through a motor bracket, and a drive plate is arranged on the motor bracket, and the drive plate is electrically connected to the first stepper motor and the second stepper motor respectively.

[0011] As an optimal technical solution of the utility model: the power module includes a power management board and a battery; the battery is electrically connected to the first stepper motor, the second stepper motor, the drive board, the switch board, the power management board, the control board and the high-voltage module respectively; the control board is electrically connected to the drive board, the switch board, the power management board and the high-voltage module respectively.

[0012] As a preferred technical solution of the present utility model: the bracket is rotatably arranged at the end of the body.

[0013] As a preferred technical solution of the utility model: the bracket includes an atomization bracket and a spinning bracket, the atomization bracket is arranged on the main body through a first rotating shaft, a first ratchet is arranged on the first rotating shaft, and a first locking device is arranged on the atomization bracket, and the first locking device is used to fix the first ratchet; the spinning bracket is arranged on the main body through a second rotating shaft, a second ratchet is arranged on the second rotating shaft, and a second locking device is arranged on the spinning bracket, and the second locking device is used to fix the second ratchet.

[0014] As a preferred technical solution of the utility model: the atomizing nozzle is arranged on the side of the atomizing bracket, a first screw is arranged in the atomizing bracket, a first screw hole is arranged at the bottom of the atomizing nozzle, the first screw hole is threadedly connected to the first screw, and the first infusion port is connected to the atomizing liquid carrier cavity through a pipeline; the spinning nozzle is arranged on the side of the spinning bracket, a second screw is arranged in the spinning bracket, a second screw hole is arranged at the bottom of the spinning nozzle, the second screw hole is threadedly connected to the second screw, and the second infusion port is connected to the spinning liquid carrier cavity through a pipeline.

[0015] As a preferred technical solution of the present utility model: a first knob is provided at the end of the first screw rod; and a second knob is provided at the end of the second screw rod.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model combines electrospinning and electrostatic spraying together, so that fiber polymers and nanoparticles can generate nanofiber membranes in situ on the surface of the recipient. The nanofiber membranes are highly integrated and easy to carry, and can be used in medical, industrial production and other scenarios.

[0018] 2. The angle and distance between the spray nozzle and the spinning nozzle can be adjusted independently to adapt to solutions with different proportions and components and meet the needs of various usage scenarios.

[0019] 3. The atomizing liquid carrier chamber and the spinning liquid carrier chamber are separate drive devices. The dual independent liquid supply channel design can work in two modes at the same time or in a single mode. The working mode can be switched freely according to the needs, which expands the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 for Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0022] Figure 3 This is a schematic diagram of the overall structure of the bracket of the utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the atomizing bracket of the utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the spinning support of the utility model;

[0025] Figure 6 This is a schematic diagram of the overall structure of the atomizing nozzle of the utility model;

[0026] Figure 7 It is a schematic diagram of the overall structure of the spinning nozzle of the utility model;

[0027] Figure 8 This is a schematic diagram of the use effect of the utility model;

[0028] 1. Main body; 2. Liquid-carrying cavity; 3. High-voltage module; 4. Front cover; 5. Atomizing liquid-carrying cavity; 6. Spinning liquid-carrying cavity; 7. Bracket; 8. Atomizing nozzle; 9. Spinning nozzle; 10. Atomizing drive device; 11. Spinning drive device; 12. Power module; 13. First stepper motor; 14. First screw rod; 15. First piston; 16. First nozzle body; 17. First infusion port; 18. First high-voltage terminal; 19. First spray needle; 20. Pipeline; 21. Second stepper motor; 22. Second screw rod; 23. Second piston; 24. Second nozzle body; 25. Second infusion port; 26. Second high-voltage terminal; 27. Second spray needle; 28. Motor bracket; 29. ​​Drive plate; 30. First Liquid outlet; 31. Second liquid outlet; 32. Control board; 33. Switch board; 34. Power management board; 35. Battery; 36. Atomization bracket; 37. Spinning bracket; 38. First rotating shaft; 39. First ratchet; 40. First locking device; 41. First slide groove; 42. First ratchet; 43. First return spring; 44. Second locking device; 45. Second slide groove; 46. Second ratchet; 47. Second return spring; 48. Second rotating shaft; 49. Second ratchet; 50. First screw; 51. First knob; 52. First screw hole; 53. Second screw; 54. Second knob; 55. Second screw hole; 56. Wire; 57. Nanoparticles; 58. Nanofiber; 59. Nanofiber membrane. DETAILED DESCRIPTION

[0029] In order to make the purpose and advantages of the utility model more clear, the utility model is further described in detail in conjunction with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] like Figure 1-Figure 2As shown, the embodiment of the utility model provides a portable device for composite electrostatic spraying and spinning process, including a body 1, in which a liquid-carrying chamber 2 and a high-voltage module 3 are arranged; the body 1 is a square ring structure, and of course it can also be designed as a circular or polygonal ring structure according to actual conditions, and the square ring structure is convenient for people to grasp when using. A front cover 4 is arranged at the end of the body 1, and the liquid-carrying chamber 2 is detachably arranged in the body below the front cover 4, and this embodiment preferably adopts a snap-on method. The liquid carrier chamber 2 includes an atomizing liquid carrier chamber 5 and a spinning liquid carrier chamber 6, which are used to load the atomizing solution and the spinning solution; a bracket 7 is provided at one end of the body, and an atomizing nozzle 8 and a spinning nozzle 9 are provided on the bracket 7; the atomizing nozzle 8 and the spinning nozzle 9 are respectively connected to the atomizing liquid carrier chamber 5 and the spinning liquid carrier chamber 6 through a pipeline 20; the atomizing nozzle 8 and the spinning nozzle 9 are electrically connected to the high-voltage module 3; the atomizing liquid carrier chamber 5 and the spinning liquid carrier chamber 6 are respectively connected to the atomizing drive device 10 and the spinning drive device 11; the atomizing drive device 10, the spinning drive device 11, and the high-voltage module 3 are respectively electrically connected to the control board 32; the atomizing drive device 10, the spinning drive device 11, the high-voltage module 3, and the control board 32 are respectively electrically connected to the power module 12; the atomizing drive device 10, the spinning drive device 11, the power module 12, and the control board 32 are arranged in the bracket 7. When in use, first load the solutions for spinning and spraying into the atomizing liquid carrier chamber 5 and the spinning liquid carrier chamber 6 respectively, and connect the atomizing nozzle 8 and the spinning nozzle 9 respectively; load the front cover 4 into the main body 1 as a whole, and set the liquid supply rate of the spinning and spraying solutions respectively on the control board 32, and control the atomizing drive device 10, the spinning drive device 11 and the high-voltage module 3 through the control board 32 to start the electrostatic spinning and electrostatic spraying at the same time, and generate a nanofiber membrane in situ on the surface of the acceptor. By combining electrostatic spinning and electrostatic spraying, the fiber polymer and nanoparticles can generate a nanofiber membrane in situ on the surface of the acceptor, and it is highly integrated and easy to carry, which can be used in medical, industrial production and other scenarios.

[0031] The atomization drive device 10 includes a first stepper motor 13, the first stepper motor 13 includes a first screw rod 14, one end of the atomization liquid carrier chamber 5 is provided with a first piston 15, the other end of the atomization liquid carrier chamber 5 is provided with a first liquid outlet 30, the first screw rod 14 is connected to the first piston 15, the first screw rod 14 is coaxial with the atomization liquid carrier chamber 5, and ensures that the first screw rod 14 can smoothly discharge liquid when pushing the first piston 15 forward; Figure 6As shown, the atomizing nozzle 8 includes a first nozzle body 16, on which a first infusion port 17, a first high-voltage terminal 18 and a plurality of first spray needles 19 are provided. In this embodiment, three first spray needles 19 are preferably provided. The first liquid outlet 30 is connected to the first infusion port 17 through a pipeline 20, and the pipeline 20 is a hose; the first high-voltage terminal 18 is electrically connected to the output positive electrode of the high-voltage module 3 through a wire 56, and the plurality of first spray needles 19 and the first high-voltage terminal 18 are made of metal and are electrically connected. The first stepper motor 13 pushes the first piston 15 through the first screw rod 14, so that the atomized solution in the atomizing liquid carrier cavity 5 is sprayed out through the first liquid outlet 30, the pipeline 20 and the first infusion port 17 at one time. Under the action of the high-voltage module 3, the atomized solution carries high-voltage static electricity, and nanoparticles are formed at the first infusion port 17.

[0032] The spinning drive device 11 includes a second stepper motor 21, which includes a second screw rod 22. A second piston 23 is disposed at one end of the spinning liquid carrier chamber 6, and a second liquid outlet 31 is disposed at the other end. The second screw rod 22 is connected to the second piston 23, and the second screw rod 22 is coaxial with the spinning liquid carrier chamber 6 to ensure that the second screw rod 22 pushes the second piston 23 forward to discharge the liquid smoothly. Figure 7 As shown, the spinning nozzle 9 includes a second nozzle body 24, on which a second infusion port 25, a second high-voltage terminal 26 and a plurality of second spray needles 27 are provided. In the present embodiment, three second spray needles 27 are preferably provided. The second infusion port 25 is connected to the second liquid outlet 31 via a pipeline 20, and the pipeline 20 is a hose. The second high-voltage terminal 26 is electrically connected to the output positive electrode of the high-voltage module 3 via a wire 56, and the plurality of second spray needles 27 and the second high-voltage terminal 26 are made of metal and are electrically connected. The second stepper motor 21 pushes the second piston 23 via the second screw 22, so that the spinning solution in the spinning liquid carrier cavity 6 is ejected in sequence through the second liquid outlet 31, the pipeline 20 and the second infusion port 25. Under the action of the high-voltage module 3, the atomized solution carries high-voltage static electricity, and nanofibers are formed at the second infusion port 25. As shown Figure 8 As shown, the nanofibers 58 and nanoparticles 57 cross-fuse to form a nanofiber membrane 59 on the surface of the receptor.

[0033] The first stepper motor 13 and the second stepper motor 21 are arranged inside the body 1 through a motor bracket 28, and a driving board 29 is arranged on the motor bracket 28, and the driving board 29 is electrically connected to the first stepper motor 13 and the second stepper motor 21 respectively. The power module 12 includes a power management board 34 and a battery 35; the battery 35 provides power for the entire device, that is, the battery 35 is electrically connected to the first stepper motor 13, the second stepper motor 21, the driving board 29, the power management board 34, the switch board 33, the control board 32 and the high-voltage module 3 respectively: the control board 32 is electrically connected to the driving board 29, the switch board 33, the power management board 34 and the high-voltage module 3 respectively. The switch board 33 is arranged on the outer side of the rear end of the body 1, and a start-stop button and a plurality of working status indicator lights are arranged on the switch board 33.

[0034] The first stepper motor 13 and the atomizing liquid carrier chamber 5, and the second stepper motor 21 and the spinning liquid carrier chamber 6 are two independent feeding mechanisms, which realize the use of dual independent liquid supply. The specific parameter settings of the two processes are realized through the control board 32, which can work in two modes at the same time, and can also independently realize the separate working modes of electrostatic spraying and electrostatic spinning. The working mode can be freely switched according to demand.

[0035] In order to facilitate the adjustment of the distance between the nozzles, the bracket 7 is rotatably arranged at the end of the body 1 .

[0036] The support 7 includes an atomizing support 36 and a spinning support 37. Figure 4 As shown, the atomizing bracket 36 is arranged on the body 1 through the first rotating shaft 38, the first rotating shaft 38 is provided with a first ratchet 39, the atomizing bracket 36 is provided with a first locking device 40, the first locking device 40 is used to fix the first ratchet 39, the first locking device 40 includes a first slide groove 41 arranged above the atomizing bracket 36, the first slide groove 41 is slidably connected with a first ratchet 42, and the first ratchet 42 is connected to a first return spring 43; as shown Figure 5 As shown, the spinning support 37 is arranged on the body 1 through the second rotating shaft 48, and the second rotating shaft 48 is provided with a second ratchet 49. The spinning support 37 is provided with a second locking device 44, and the second locking device 44 is used to fix the second ratchet 49. The second locking device 44 includes a second slide groove 45 arranged above the spinning support 37, and a second ratchet 46 is slidably connected in the second slide groove 45, and the second ratchet 46 is connected to the second reset spring 47. When the angle needs to be adjusted, taking the adjustment of the atomizing support 36 as an example, the first ratchet 42 is pushed back and disengaged from the first ratchet 39. When it is adjusted to a certain angle, the first ratchet 42 is released to fix the atomizing support 36; the adjustment of the spinning support 37 is based on the same principle. By adjusting the atomizing support 36 and the spinning support 37, different angles between the atomizing nozzle 8 and the spinning nozzle 9 can be achieved.

[0037] The atomizing nozzle 8 is arranged on the side of the atomizing bracket 36, and a first screw 50 is rotatably arranged in the atomizing bracket 36, a first knob 51 is arranged at the end of the first screw 50, a first screw hole 52 is arranged at the bottom of the atomizing nozzle 8, and the first screw hole 52 is threadedly connected to the first screw 50; the spinning nozzle 9 is arranged on the side of the spinning bracket 37, a second screw 53 is rotatably arranged in the spinning bracket 37, a second knob 54 is arranged at the end of the second screw 53, a second screw hole 55 is arranged at the bottom of the spinning nozzle 9, and the second screw hole 55 is threadedly connected to the second screw 53. Taking the adjustment of the atomizing nozzle 8 as an example, by rotating the first knob 51, the atomizing nozzle 8 moves along the axial direction of the first screw 50, and the spinning nozzle 9 has the same adjustment principle. By adjusting the atomizing nozzle 8 and the spinning nozzle 9, the distance adjustment of the atomizing nozzle 8 and the spinning nozzle 9 can be achieved.

[0038] The angle and distance between the atomizing nozzle 8 and the spinning nozzle 9 can be adjusted. The distance and angle can be adjusted according to the requirements of solutions with different ratios and components to prevent the nanoparticles from agglomerating, improve the performance of the nanoparticles themselves, and thus improve the performance of the entire composite material. The independently adjustable nozzle structure can adapt to solutions with different ratios and components and meet the needs of various usage scenarios.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A portable device for composite electrostatic spraying and spinning process, characterized in that: The invention comprises a body (1), wherein a liquid carrier cavity (2) and a high-pressure module (3) are arranged in the body (1); the liquid carrier cavity (2) comprises an atomizing liquid carrier cavity (5) and a spinning liquid carrier cavity (6); a bracket (7) is arranged at the end of the body (1), and an atomizing nozzle (8) and a spinning nozzle (9) are arranged on the bracket (7); the atomizing nozzle (8) and the spinning nozzle (9) are respectively connected to the atomizing liquid carrier cavity (5) and the spinning liquid carrier cavity (6); the atomizing nozzle (8) and the spinning nozzle (9) are respectively electrically connected to the high-pressure module (3); the atomizing liquid carrier cavity (5) and the spinning liquid carrier cavity (6 ... The spinning liquid carrier cavity (6) is respectively connected to the atomizing drive device (10) and the spinning drive device (11); the atomizing drive device (10), the spinning drive device (11), and the high-voltage module (3) are respectively electrically connected to a control board (32); the atomizing drive device (10), the spinning drive device (11), the high-voltage module (3), and the control board (32) are respectively electrically connected to a power module (12); the atomizing drive device (10), the spinning drive device (11), the power module (12), and the control board (32) are arranged in the bracket (7).

2. A portable device for combined electrostatic spraying and spinning process according to claim 1, characterized in that: The atomizing nozzle (8) comprises a first nozzle body (16), on which a first liquid infusion port (17), a first high-voltage terminal (18) and a plurality of first spray needles (19) are provided, the first liquid infusion port (17) being connected to the atomizing liquid-carrying cavity (5) via a pipeline (20), the first high-voltage terminal (18) being electrically connected to the high-voltage module (3), and the first spray needle (19) being electrically connected to the first high-voltage terminal (18).

3. A portable device for combined electrostatic spraying and spinning process according to claim 2, characterized in that: The spinning nozzle (9) comprises a second nozzle body (24), on which a second liquid infusion port (25), a second high-voltage terminal (26) and a plurality of second spray needles (27) are provided, the second liquid infusion port (25) being connected to the spinning liquid carrier chamber (6) via a pipeline (20), the second high-voltage terminal (26) being electrically connected to the high-voltage module (3), and the second spray needle (27) being electrically connected to the second high-voltage terminal (26).

4. A portable device for combined electrostatic spraying and spinning process according to claim 1, characterized in that: The atomization drive device (10) comprises a first stepper motor (13), the first stepper motor (13) comprises a first screw rod (14), one end of the atomization liquid carrier chamber (5) is provided with a first piston (15), and the first screw rod (14) is connected to the first piston (15); the spinning drive device (11) comprises a second stepper motor (21), the second stepper motor (21) comprises a second screw rod (22), one end of the spinning liquid carrier chamber (6) is provided with a second piston (23), and the second screw rod (22) is connected to the second piston (23).

5. A portable device for combined electrostatic spraying and spinning process according to claim 4, characterized in that: The first stepper motor (13) and the second stepper motor (21) are arranged inside the body (1) via a motor bracket (28); a drive plate (29) is arranged on the motor bracket (28); and the drive plate (29) is electrically connected to the first stepper motor (13) and the second stepper motor (21), respectively.

6. The portable device for combined electrostatic spraying and spinning process according to claim 1, characterized in that: The power module (12) comprises a power management board (34) and a battery (35); the battery (35) is electrically connected to the first stepper motor (13), the second stepper motor (21), the drive board (29), the power management board (34), the control board (32), the switch board (33) and the high-voltage module (3); the control board (32) is electrically connected to the drive board (29), the switch board (33), the power management board (34) and the high-voltage module (3).

7. A portable device for combined electrostatic spraying and spinning process according to claim 3, characterized in that: The bracket (7) is rotatably arranged at the end of the body (1).

8. A portable device for combined electrostatic spraying and spinning process according to claim 7, characterized in that: The support (7) comprises an atomizing support (36) and a spinning support (37); the atomizing support (36) is arranged on the body (1) via a first rotating shaft (38); a first ratchet (39) is arranged on the first rotating shaft (38); a first locking device (40) is arranged on the atomizing support (36); the first locking device (40) is used to fix the first ratchet (39); the spinning support (37) is arranged on the body (1) via a second rotating shaft (48); a second ratchet (49) is arranged on the second rotating shaft (48); a second locking device (44) is arranged on the spinning support (37); the second locking device (44) is used to fix the second ratchet (49).

9. A portable device for combined electrostatic spraying and spinning process according to claim 8, characterized in that: The atomizing nozzle (8) is arranged on the side of the atomizing bracket (36), a first screw (50) is arranged in the atomizing bracket (36), a first screw hole (52) is arranged at the bottom of the atomizing nozzle (8), the first screw hole (52) is threadedly connected to the first screw (50), and the first infusion port (17) is connected to the atomizing liquid carrier cavity (5) through a pipeline (20); the spinning nozzle (9) is arranged on the side of the spinning bracket (37), a second screw (53) is arranged in the spinning bracket (37), a second screw hole (55) is arranged at the bottom of the spinning nozzle (9), the second screw hole (55) is threadedly connected to the second screw (53), and the second infusion port (25) is connected to the spinning liquid carrier cavity (6) through a pipeline (20).

10. A portable device for combined electrostatic spraying and spinning process according to claim 9, characterized in that: A first knob (51) is disposed at the end of the first screw rod (50); and a second knob (54) is disposed at the end of the second screw rod.

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