Electrostatic spinning coating mechanism and electrostatic spinning device

Abstract

The utility model discloses an electrostatic spinning coating mechanism and an electrostatic spinning device. The electrostatic spinning coating mechanism comprises a base; the seat stand is connected to the base in a sliding manner; the at least one coating piece is mounted on the seat stand and comprises a seat body, and the seat body is provided with a liquid storage tank and a wire passing hole communicated with the liquid storage tank; the electrode wires are fixed at the two ends of the base and penetrate through the wire passing holes; the liquid supply circulating assembly comprises a liquid inlet header pipe, a liquid outlet pipe, a liquid storage tank and a circulating pump, the circulating pump is connected with the liquid inlet header pipe and the liquid storage tank, and the liquid outlet pipe is connected with the liquid storage tank; wherein the liquid storage tank and the circulating pump are installed on one side of the seat stand, a liquid outlet hole communicated with the wire passing hole and a liquid inlet hole communicated with the liquid storage tank are further formed in the bottom of the seat body, the liquid inlet header pipe is connected with the liquid inlet hole, and the liquid outlet pipe is connected with the liquid outlet hole. And the liquid supply circulating assembly is connected with the coating piece, so that the spinning liquid can circularly flow in a backflow and supply manner, and the working continuity of the whole spinning process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrospinning, and in particular to an electrospinning coating mechanism and an electrospinning device. Background Art

[0002] Electrospinning is a special process for manufacturing nanofibers. Its principle uses high-voltage electrostatic force to accelerate the ejection of spinning solution. During the extrusion process, the spinning solution is pulled by the electrostatic force, overcoming gravity, surface tension and other effects to be drawn into nano- or micron-sized silk threads, which eventually fly to the surface of the low-potential substrate and form a thin film.

[0003] The types of mass-produced electrospinning equipment mainly include needle-type and needle-free electrospinning equipment. Different types of electrospinning equipment are selected according to different scenarios. Needle-type electrospinning equipment is often used in scenarios where high fiber quality requirements are required. Needle-free electrospinning equipment is often used in scenarios where high product air permeability and softness are required because of the larger gaps between the fibers it spins. In the structure of the needle-free electrospinning equipment, the spinning liquid is evenly coated on the electrode wire through the reciprocating motion of the coating mechanism during operation. After the electrode wire is energized, a high voltage is formed between the electrode plate on the top to form an electrostatic field. The spinning liquid is stretched from the surface of the electrode wire to form a jet, and finally non-woven nanofibers are formed on the surface of the base fabric. The coating uniformity of the spinning liquid on the surface of the electrode wire directly affects the uniformity of the nanofibers.

[0004] The structure of the coating mechanism in the existing needle-free electrospinning equipment is, for example, a "tension-adjustable linear electrospinning emitter and electrospinning device" disclosed in publication number CN111778570A. The electrode wire is fixed between two fixed components and passes through a liquid supply brush head. The liquid supply brush head is connected to a liquid supply system. The liquid supply system includes a liquid storage tank and a waste liquid tank. A liquid supply flow channel and a waste liquid flow channel are opened in the liquid supply brush head. The liquid supply flow channel is connected to the liquid storage tank, and the waste liquid channel is connected to the waste liquid tank. During operation, the spinning liquid is contained in the liquid storage tank and enters the liquid supply brush head through the liquid supply flow channel and the spinning liquid is coated on the surface of the electrode wire, and the excess spinning liquid flows back to the waste liquid tank through the waste liquid channel. After working for a period of time, this coating mechanism needs to manually add spinning liquid to the liquid storage tank, and because there is no liquid supply power source, when the spinning liquid level in the liquid storage tank is lower than the liquid outlet, the spinning liquid cannot enter the liquid supply brush head through the liquid inlet hole, resulting in a relatively low effective utilization rate of the spinning liquid in the liquid storage tank. Utility Model Content

[0005] In order to improve the continuity of electrospinning work, the first object of the present application is to provide an electrospinning coating mechanism.

[0006] The present application provides an electrospinning coating mechanism that adopts the following technical solution:

[0007] An electrospinning coating mechanism, comprising:

[0008] Pedestal;

[0009] A seat platform, slidably connected to the base;

[0010] At least one coating member, the coating member is mounted on the base, and comprises a base body, the base body is provided with a liquid storage tank and a wire hole connected to the liquid storage tank;

[0011] Electrode wires are fixed to both ends of the base and passed through the wire holes; and

[0012] A liquid supply circulation assembly, the liquid supply circulation assembly comprising a liquid inlet main pipe, a liquid outlet pipe, a liquid storage tank and a circulation pump, the circulation pump is connected to the liquid inlet main pipe and the liquid storage tank, and the liquid outlet pipe is connected to the liquid storage tank;

[0013] The liquid storage tank and the circulating pump are installed on one side of the base, and the bottom of the base is also provided with a liquid outlet hole connected to the wire hole and a liquid inlet hole connected to the liquid storage tank, the liquid inlet main pipe is connected to the liquid inlet hole, and the liquid outlet pipe is connected to the liquid outlet hole.

[0014] By adopting the above technical solution, the seat moves relative to the base and drives the coating part to move synchronously. When the coating part slides, the electrode wire is coated on the surface due to being inserted into the wire hole. The spinning liquid on the surface of the electrode wire enters the liquid outlet pipe through the liquid outlet hole connected to the wire hole and finally flows back to the liquid storage tank. During the spinning process, the circulating pump works to pump the spinning liquid in the liquid storage tank into the liquid inlet main pipe, and re-enters the liquid storage tank through the liquid inlet main pipe to realize the supply of the spinning liquid capacity in the coating part, so as to realize continuous spinning work without the need for personnel to supply the spinning liquid. In addition, the liquid capacity in the liquid storage tank only needs to meet the corresponding number of coating parts, and thus the volume can be effectively reduced. Similarly, the power of the circulating pump only needs to meet the flow rate of a certain amount of spinning liquid, and the volume of the circulating pump does not need to be too large. Therefore, the liquid storage tank and the circulating pump can be installed on one side of the seat, and the synchronous movement of the seat also solves the problem of remote liquid supply.

[0015] Preferably, it also includes a flow guide component, and the flow guide component includes:

[0016] Gas source;

[0017] An air guide joint connected to the coating member and in communication with the liquid outlet; and

[0018] Air guide tube, connecting the air source and the air guide joint.

[0019] By adopting the above technical solution, the spinning liquid on the surface of the electrode wire is scraped and enters the liquid inlet hole. The guide component uses the air source to supply air into the air guide pipe. The airflow enters the liquid inlet hole and accelerates to flow back to the liquid storage tank, while alleviating the problem of blockage in the liquid outlet pipe.

[0020] Preferably, the flow guide assembly further comprises a pneumatic double-joint fixed to one side of the base, and the pneumatic double-joint connects the air source and the air guide joint via an air guide pipe.

[0021] By adopting the above technical solution, the setting of the pneumatic two-piece can first filter the gas supplied from the gas source to reduce the impurity particles brought into the spinning solution and affect the spinning process. Secondly, the pneumatic two-piece can be installed on the platform as a gas transfer station. The connection between the gas source and the pneumatic two-piece and the connection between the coating part and the pneumatic two-piece realizes modular connection, which is convenient for the overall disassembly and assembly; finally, the pneumatic two-piece can also be used as a pressure regulating element to adjust the air pressure supplied to the coating part, which can be used for the gas supply operation of the coating part during the spinning process and after shutdown.

[0022] Preferably, the wire-passing hole is a tapered hole and the hole diameter gradually decreases from the inlet side to the liquid storage tank.

[0023] By adopting the above technical solution, the electrode wire is coated with liquid in the wire passing hole during the sliding process of the coating part. Since the wire passing hole is a tapered hole and the aperture gradually decreases toward the liquid storage tank, the scraped spinning wire can freely slide along the wire passing hole to the liquid outlet hole, reducing the accumulation of spinning liquid in the wire passing hole.

[0024] Preferably, the coating member also includes a liquid outlet joint tube and a liquid inlet joint tube, the liquid outlet joint tube is detachably connected to the liquid outlet hole, the liquid inlet joint tube is detachably connected to the liquid inlet hole, the liquid inlet joint tube is connected to the liquid inlet main pipe, and the liquid outlet joint tube is connected to the liquid outlet pipe.

[0025] By adopting the above technical solution, the arrangement of the liquid outlet joint pipe and the liquid inlet joint pipe first facilitates the connection between the liquid inlet main pipe and the liquid outlet pipe, and the detachable installation structure can be applied to the connection between the seat body and the liquid supply circulation assembly in different scenarios.

[0026] Preferably, the liquid outlet joint pipe and the liquid inlet joint pipe both include a cone in which a main body section is connected to a main body section, a step is formed at the connection between the cone and the main body section, a liquid inlet branch pipe is connected between the liquid inlet joint pipe and the liquid inlet main pipe, and the liquid inlet branch pipe and the liquid outlet pipe are hoses.

[0027] By adopting the above technical solution, the hose is easy to install and connect because of its certain deformation ability, and after being connected with the joint pipe, the cone can limit the hose by using the step structure to reduce the occurrence of the hose falling off.

[0028] Preferably, the coating member further comprises an insulating shell mounted on the base, the insulating shell is provided with a limiting groove and a cutout connected to the limiting groove, the base body is accommodated in the limiting groove and the electrode wire passes through the cutout.

[0029] By adopting the above technical solution, the electrode wire forms a high-voltage positive electrode after being energized, and the insulating shell can electrically insulate the seat body from the seat platform to ensure the normal operation of the equipment. Secondly, the seat body can also be protected when installed in the insulating shell, and the opening can not only facilitate the routing of the electrode wire, but also facilitate the removal of the seat body by acting on the seat body from the incision.

[0030] Preferably, it further comprises a sliding assembly, wherein the sliding assembly comprises:

[0031] A guide rail, mounted on the bottom of the base;

[0032] A sliding seat, mounted on the base and connected to the guide rail;

[0033] A screw nut pair, mounted on the base; and

[0034] The driving motor is installed on the base and connected with the lead screw nut pair.

[0035] By adopting the above technical solution, the transmission of the screw nut pair has better transmission accuracy and is more stable, the spinning liquid coating of the electrode wire is more uniform, and the spinning quality can be guaranteed.

[0036] In order to improve the continuity of electrospinning, the second object of the present application is to provide an electrospinning device.

[0037] The present application provides an electrospinning device that adopts the following technical solution:

[0038] An electrostatic spinning device comprises the electrostatic spinning coating mechanism and an electrode plate located above the electrostatic spinning coating mechanism.

[0039] By adopting the above technical solution, an electrostatic field is formed between the electrode plate and the energized electrode wire, and the surface of the electrode wire is coated with spinning liquid through the reciprocating motion of the coating part. The spinning liquid utilizes the liquid supply circulation component to realize the circulation of the spinning liquid between the liquid storage tank and the coating part, which greatly improves the working continuity of the equipment.

[0040] Preferably, it also includes an adjustment component, and the adjustment component includes:

[0041] frame;

[0042] Two adjusting rollers are rotatably connected to the frame, and two ends of the electrode plate are wound around the adjusting rollers; and

[0043] A driving member connected to the adjusting rollers is used to drive the two adjusting rollers to slide horizontally relative to the frame to increase / decrease the unfolding area of ​​the electrode plate.

[0044] By adopting the above technical solution, the expansion area of ​​the electrode plate can be adjusted by the adjusting component, and the size of the electrostatic field can be changed according to the length of the bottom electrode wire to adapt to the production of the nanofiber layer of the area.

[0045] In summary, the present application includes at least one of the following beneficial technical effects:

[0046] 1. By setting the connection between the liquid supply circulation assembly and the coating part, the spinning solution can realize the circulation flow of reflux and supply, thereby improving the working continuity of the entire spinning process. At the same time, the liquid storage tank in the liquid supply circulation assembly is connected with the circulation pump and the base to shorten the entire liquid supply replenishment path, and the spinning solution can be quickly replenished to the coating part;

[0047] 2. The setting of the flow guide assembly makes the spinning solution reflux smoother and reduces the possibility of blockage of the return pipe. The setting of the pneumatic two-piece can adjust the control air pressure and combine with the work of the circulation pump to make the spinning solution reflux and supply smoother.

[0048] 3. The seat body and the insulating shell of the coating part are split into a structure that facilitates the replacement of the seat body alone. At the same time, the liquid outlet joint pipe and the liquid inlet joint pipe are detachably connected to the seat body, which can realize modular replacement of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a structural schematic diagram of the electrospinning coating mechanism in Example 1;

[0050] Figure 2 It is a schematic diagram of the exploded coating member in the first embodiment;

[0051] Figure 3 This is a schematic diagram mainly showing the internal structure of the seat body in the first embodiment;

[0052] Figure 4 It is a structural schematic diagram of the liquid supply circulation component in Example 1;

[0053] Figure 5 is a schematic structural diagram of the flow guide assembly in Example 1;

[0054] Figure 6 It is a structural schematic diagram of the sliding assembly in the first embodiment;

[0055] Figure 7 Schematic diagram of the structure of the electrospinning device in Example 2.

[0056] Description of reference numerals: 1, base; 11, electrode base; 2, base; 21, mounting groove; 3, coating member; 31, base body; 311, liquid storage tank; 312, wire hole; 313, liquid inlet hole; 314, liquid outlet hole; 315, liquid guide hole; 32, insulating shell; 321, limit groove; 322, cutout; 33, sealing plate; 34, fastener; 35, liquid inlet joint pipe; 36, liquid outlet joint pipe; 37. Main section; 38. Cone; 4. Electrode wire; 5. Liquid supply circulation assembly; 51. Liquid inlet main pipe; 52. Liquid outlet pipe; 53. Liquid storage tank; 54. Circulation pump; 55. Liquid inlet branch pipe; 6. Pneumatic two-piece; 7. Air guide joint; 8. Air guide pipe; 9. Guide rail; 91. Slide; 92. Lead screw; 93. Drive motor; 10. Frame; 20. Electrode plate; 30. Adjusting roller; 40. Drive member. DETAILED DESCRIPTION

[0057] The present application is further described in detail below in conjunction with the accompanying drawings.

[0058] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of this application. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. Embodiment 1

[0060] Figure 1 The overall schematic diagram of the electrostatic textile coating mechanism is shown, and the overall coating mechanism includes a base 1, a base 2 slidably connected to the base 1, a plurality of coating members 3 mounted on the base 2, and an electrode wire 4 passing through the coating member 3. In this embodiment, a plurality of coating members 3 are arranged at equal intervals, each coating member 3 corresponds to an electrode wire 4, and both ends of the electrode wire 4 are electrically connected to the electrode base 11, respectively. The coating member 3 contains spinning liquid and the spinning liquid is coated on the surface of the electrode wire 4 during the sliding process with the base 2.

[0061] Shared Reference Figure 2 and Figure 3The coating member 3 includes an insulating shell 32 and a seat body 31. The surface of the seat 2 is provided with a mounting groove 21. The bottom of the insulating shell 32 is clamped in the mounting groove 21. The insulating shell 32 is provided with a limiting groove 321, and the seat body 31 is accommodated in the limiting groove 321.

[0062] The seat body 31 is made of metal, including a liquid storage tank 311 opened in the middle and a wire hole 312 that passes through the seat body 31 along the length direction, and the wire hole 312 is connected to the liquid storage tank 311. The wire hole 312 is a tapered hole, and the aperture gradually decreases from one side of the end face of the seat body 31 toward the liquid storage tank 311. The electrode wire 4 passes through the wire hole 312 and the liquid storage tank 311. The liquid storage tank 311 contains spinning liquid, and the spinning liquid is applied to the electrode wire 4 during the sliding process of the seat 2. The insulating shell 32 also has two cutouts 322 connected to the limit groove 321. The cutouts 322 are for the electrode wire 4 to pass through, and at the same time, it is convenient to act on the seat body 31 from the cutouts 322 to facilitate the separation between the seat body 31 and the insulating shell 32.

[0063] The bottom of the seat body 31 is also provided with a liquid outlet hole 314 and a liquid inlet hole 313, the liquid inlet hole 313 is connected to the liquid storage tank 311, and the liquid outlet hole 314 is connected to the wire hole 312. The liquid outlet hole 314 is connected to the liquid outlet pipe 52 joint, and the liquid inlet hole 313 is connected to the liquid inlet pipe joint. The liquid outlet pipe 52 joint and the liquid inlet pipe joint are both threadedly connected to realize a detachable connection with the seat body 31.

[0064] The coating member 3 further includes a sealing plate 33, which is connected to the base 31 via a fastener 34, and further fixes the base 31 to the insulating housing 32. The sealing plate 33 simultaneously closes the opening of the liquid storage tank 311 so that the spinning solution is stored in the liquid storage tank 311.

[0065] Combination Figure 4 The coating mechanism further includes a liquid supply circulation assembly 5, which includes a liquid storage tank 53, a circulation pump 54, a liquid inlet manifold 51, and a liquid outlet pipe 52. The liquid storage tank 53 and the circulation pump 54 are installed on one side of the base 2, the liquid inlet manifold 51 is connected to the base 2, the circulation pump 54 connects the liquid inlet manifold 51 and the liquid storage tank 53, and the liquid outlet pipe 52 connects the base body 31 and the liquid storage tank 53.

[0066] The liquid storage tank 53 is pre-filled with a sufficient amount of spinning solution to supply sufficient spinning solution to all the coating parts 3 installed on the seat 2. The circulation pump 54 adopts a micro-circulation pump 54, and the power is sufficient to supply a certain flow rate of spinning solution. The liquid inlet pipe joint is connected to the liquid inlet main pipe 51 through the liquid inlet branch pipe 55. The liquid inlet main pipe 51 can be connected to all the liquid inlet branches 55 to synchronously supply spinning solution to the liquid storage tank 311 of the seat body 31. The liquid outlet pipe 52 is connected to the liquid outlet pipe 52 joint. After passing through the wire hole 312, the electrode wire 4 will scrape the spinning solution into the liquid outlet pipe 52 joint through the liquid outlet hole 314, and finally flow back to the liquid storage tank 53. In particular, both the liquid outlet pipe 52 and the liquid inlet branch pipe 55 are made of hoses. When the circulation pump 54 is working, the liquid storage tank 311 is filled with the spinning liquid supplied from the liquid storage box 53, so that a certain pressure is guaranteed in the liquid storage tank 311. Part of the spinning liquid will enter the wire hole 312 to extend the coating area of ​​the electrode wire 4, and at the same time realize the circulation of the spinning liquid between the coating part 3 and the liquid supply circulation component 5.

[0067] In addition, the conical structure of the wire hole 312 allows the spinning liquid to flow toward the liquid outlet 314 due to its own gravity after coming out of the liquid storage tank 311, further improving the circulation of the spinning liquid. The wire hole 312 is relatively smaller in diameter on the side close to the liquid storage tank 311, which can inhibit the flow rate of the spinning liquid in the wire hole 312 to a certain extent and reduce the leakage of the spinning liquid from the surface of the seat body 31.

[0068] The structure of the liquid inlet pipe joint is the same as that of the liquid outlet pipe 52 joint, both of which include a main section 37 of a certain length and a frustum 38 located at the end of the main section 37. The diameter of the frustum 38 gradually increases from the end toward the main section 37, and a step is formed at the connection of the main section 37. When the liquid inlet branch pipe 55 is connected to the liquid outlet pipe 52, it can be quickly introduced into the pipe joint and the connection strength between the liquid inlet branch pipe 55 and the liquid outlet pipe 52 can be increased through the step of the frustum 38, thereby reducing the occurrence of pipe detachment.

[0069] See also Figure 5 The coating mechanism also includes an air guide component, which includes an air source, a pneumatic double-joint 6, an air guide joint 7 and an air guide pipe 8. The pneumatic double-joint 6 is fixed to the other side of the base 2 relative to the liquid supply circulation component 5, so that the weight on both sides of the base 2 can be balanced to a certain extent. At the same time, the pneumatic double-joint 6 is connected to the air source and the air guide joint 7 through the air guide pipe 8, and each coating component 3 is connected to two air guide joints 7. The air guide joint 7 is connected to the air guide hole opened on the side of the base body 31, and the air guide hole is connected to the liquid outlet hole 314. The air source provides a certain flow rate of gas into the base body 31. After the impurities are removed and the air pressure is adjusted by the pneumatic double-joint 6, the gas enters the liquid outlet hole 314 through the air guide joint 7, which accelerates the reflux of the spinning solution and reduces the blockage of the liquid outlet joint pipe 36 and the liquid outlet pipe 52.

[0070] See also Figure 6 The coating mechanism also includes a sliding assembly, which includes a guide rail 9 installed at the bottom of the base 1, a slide 91 installed on the base 2, a screw 92-nut pair connected to the slide 91, and a drive motor 93 that drives the screw 92-nut pair. The screw 92-nut pair includes a screw 92 and a nut seat threadedly connected to the screw 92, the nut seat is installed on the base 2, and the drive motor 93 is connected to one end of the screw 92. When working, the drive motor 93 drives the screw 92 to rotate, and the base 2 is driven to slide relative to the base 1 through the rotation of the screw 92. The drive motor 93 is a servo motor that can control the screw 92 to achieve forward and reverse rotation.

[0071] When the coating mechanism is working, the electrode wire 4 is powered by the electrode holder 11 so that its surface carries high voltage electricity, and the circulating pump 54 works to divert the spinning liquid in the liquid storage tank 53 through the liquid inlet main pipe 51 to the liquid inlet branch pipe 55 and enter the liquid storage tank 311, and the driving motor 93 works to drive the seat 2 to realize reciprocating motion, and the coating part 3 realizes the coating of the electrode wire 4. When the electrode wire 4 slides in the wire hole 312, the spinning liquid is scraped off and enters the liquid outlet hole 314, and finally falls back into the liquid storage tank 53 through the liquid outlet pipe 52.

[0072] The air guide component can be executed during the spinning process or after the spinning is completed. During the spinning process, the air flow pressure adjusted by the pneumatic double-joint 6 is relatively small, which reduces the interference with the reflux of the spinning liquid and instead assists the reflux of the spinning liquid; after the spinning work is completed, the pneumatic double-joint 6 increases the air pressure to clear the spinning liquid in the liquid outlet pipe 52. Embodiment 2

[0073] See also Figure 7 An electrostatic spinning device includes a frame 10 and a coating mechanism in the first embodiment. Two adjusting rollers 30 are installed on the frame, an electrode plate 20 is arranged between the two adjusting rollers 30, and both ends of the electrode plate 20 are wound around the adjusting rollers 30. A driving member 40 is also arranged on the frame 10, and the driving member 40 is connected to the adjusting roller 30 to drive the adjusting roller 30 to slide horizontally relative to the frame 10. When the distance between the two adjusting rollers 30 increases, the expansion area of ​​the electrode plate 20 is synchronously increased to increase the spinning area.

[0074] During operation, the entire electrospinning device is in a closed environment, an electrostatic field is formed between the electrode wire 4 and the electrode plate 20, the base cloth is placed in the electrostatic field, and the two ends of the base cloth are respectively connected to the unwinding device and the winding device. As the base cloth is gradually unwound, a nanofiber film is formed on the surface of the base cloth.

[0075] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrospinning coating mechanism, characterized in that: include: Base (1); A seat (2) slidably connected to the base (1); At least one coating member (3), the coating member (3) being mounted on the base (2), and comprising a base body (31), the base body (31) being provided with a liquid storage tank (311) and a wire hole (312) connected to the liquid storage tank (311); Electrode wires (4) are fixed to two ends of the base (1) and pass through the wire holes (312); and A liquid supply circulation assembly (5), the liquid supply circulation assembly (5) comprising a liquid inlet main pipe (51), a liquid outlet pipe (52), a liquid storage tank (53), and a circulation pump (54), the circulation pump (54) connecting the liquid inlet main pipe (51) and the liquid storage tank (53), and the liquid outlet pipe (52) connecting the liquid storage tank (53); The liquid storage tank (53) and the circulation pump (54) are installed on one side of the base (2); the bottom of the base body (31) is also provided with a liquid outlet hole (314) connected to the wire hole (312) and a liquid inlet hole (313) connected to the liquid storage tank (311); the liquid inlet main pipe (51) is connected to the liquid inlet hole (313); and the liquid outlet pipe (52) is connected to the liquid outlet hole (314).

2. The electrospinning coating mechanism according to claim 1, characterized in that: Also included is a flow guide component, the flow guide component comprising: Gas source; An air guide joint (7) connected to the coating member (3) and in communication with the liquid outlet hole (314); and The air guide pipe (8) is connected to the air source and the air guide joint (7).

3. The electrospinning coating mechanism according to claim 2, characterized in that: The flow guide assembly further comprises a pneumatic double-joint (6) fixed to one side of the base (2), wherein the pneumatic double-joint (6) is connected to an air source and an air guide joint (7) via an air guide pipe (8).

4. The electrospinning coating mechanism according to claim 1, characterized in that: The wire-passing hole (312) is a tapered hole, and the hole diameter gradually decreases from the inlet side to the liquid storage tank (311).

5. The electrospinning coating mechanism according to claim 1, characterized in that: The coating member (3) further comprises a liquid outlet joint pipe (36) and a liquid inlet joint pipe (35); the liquid outlet joint pipe (36) is detachably connected to the liquid outlet hole (314); the liquid inlet joint pipe (35) is detachably connected to the liquid inlet hole (313); the liquid inlet joint pipe (35) is connected to the liquid inlet main pipe (51); and the liquid outlet joint pipe (36) is connected to the liquid outlet pipe (52).

6. The electrospinning coating mechanism according to claim 5, characterized in that: The liquid outlet joint pipe (36) and the liquid inlet joint pipe (35) both comprise a main body section (37) connected to a frustum (38) of the main body section (37), a step being formed at the connection between the frustum (38) and the main body section (37), a liquid inlet branch pipe (55) being connected between the liquid inlet joint pipe (35) and the liquid inlet main pipe (51), and the liquid inlet branch pipe (55) and the liquid outlet pipe (52) being hoses.

7. The electrospinning coating mechanism according to claim 1, characterized in that: The coating member (3) further comprises an insulating shell (32) mounted on the base (2); the insulating shell (32) is provided with a limiting groove (321) and a cutout (322) connected to the limiting groove (321); the base (31) is received in the limiting groove (321) and the electrode wire (4) passes through the cutout (322).

8. The electrospinning coating mechanism according to claim 1, characterized in that: Also included is a sliding assembly, the sliding assembly comprising: A guide rail (9) is mounted on the bottom of the base (1); A sliding seat (91) is mounted on the base (2) and connected to the guide rail (9); A screw (92) and a nut pair mounted on the base (1); and A driving motor (93) is mounted on the base (1) and connected to the lead screw (92) and a nut pair.

9. An electrospinning device, characterized in that: It comprises the electrospinning coating mechanism as claimed in any one of claims 1 to 8 and an electrode plate (20) located above the electrospinning coating mechanism.

10. The electrospinning device according to claim 9, characterized in that: Also included is an adjustment component, the adjustment component comprising: Rack (10); Two adjustment rollers (30) are rotatably connected to the frame (10), and both ends of the electrode plate (20) are wound around the adjustment rollers (30); and A driving member (40) is connected to the adjusting rollers (30) and is used to drive the two adjusting rollers (30) to slide horizontally relative to the frame (10) so as to increase / decrease the unfolded area of ​​the electrode plate (20).

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