Electrostatic spinning and spraying device based on solution in-situ self-mixing

Abstract

The utility model provides an electrostatic spinning and spraying device based on solution in-situ self-mixing, which comprises a shell, and the shell sequentially comprises a handheld part, a driving part, a liquid carrying part and a spinning / spraying part in the clockwise direction; the handheld part is provided with a start-stop switch, the driving part is provided with a power source, the liquid carrying part is provided with a plurality of liquid carrying cabins and a driving device located below the liquid carrying cabins, and the driving part provides the power source for the driving device so that the driving device can be in linkage with the liquid carrying part. The liquid carrying part realizes in-situ self-mixing of liquid in a liquid carrying cabin under the action of a driving device and supplies the liquid to the spinning / spraying part, and the spinning / spraying part performs electrostatic spinning / spraying under the action of a power supply. Different requirements and use scenes of users can be met, solutions or powder with specific function requirements are mixed before use, and the problem that long-term storage cannot be achieved through premixing is solved; the on-site mixing avoids the problems of difficult storage and waste caused by premixing.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanometer fiber material technical field especially, it relates to a kind of electrospinning and spray device based on solution in situ self mixing. BACKGROUND

[0002] Electrospinning is one of the most common methods for preparing nanofiber membranes, which refers to the formation of a jet stream from a polymer solution under high-voltage static electricity. This jet stream undergoes high-speed stretching by electric field force, solvent evaporation, and thinning processes to form nanofibers. The resulting nanofiber membranes have high porosity, small fiber diameter, large specific surface area, good connectivity, and controllable bulk density. Nanoparticles can be further added to the surface or interior of the nanofibers to modify the properties of the nanofiber membranes and obtain composite nanofiber membranes with specific microstructures. For example, inorganic oxides, inorganic nanomaterials, carbon materials, inorganic salts, drug-loaded microspheres, micelles, and microcapsules can be dispersed in a polymer solution to obtain composite nanofibers with special functions through electrospinning.

[0003] The principle of electrostatic spraying is to disperse liquid into fine particles using a high-voltage static electric field and deposit them on the surface to be covered. An electrostatic sprayer mainly consists of a high-voltage generator, a nozzle, a liquid spray cup, a high-voltage electrode, and a grounded electrode. The high-voltage generator converts a low-voltage power source into a high-voltage DC power source. The nozzle is used to spray liquid and form fine particles. The high-voltage electrode generates an electric field, allowing the sprayed liquid particles to acquire static charges. The grounded electrode attracts the charged liquid particles, causing them to uniformly deposit on the workpiece surface. When the paint particles are negatively charged, they fly towards the workpiece under the action of electrostatic force and compressed air, forming a uniform coating on the receiving surface.

[0004] Medicines come in solid and liquid forms, and cannot be mixed and stored for a long time. Therefore, people often need to prepare multiple reagent bottles to store multiple reactants. When each compound is needed, it is configured on site. Therefore, this method is more troublesome in operation and is not convenient to carry. In addition, using the traditional method, there will be a certain amount of compound left after each use, which will cause waste. Therefore, a device is needed that can automatically mix two reagents before use to meet some specific use scenario requirements.

[0005] Therefore, it is necessary to improve the electrospinning and spray device in the prior art to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of electrospinning and spray device based on solution in situ self-mixing, by multiple liquid carrying cabin combination, in situ self-mixing before spinning, and then through high-voltage electrospinning and spray, in situ generate nanofiber and nanometer microparticle on the surface of acceptor.

[0007] To achieve the above object, the utility model provides a kind of electrospinning and spray device based on solution in situ self-mixing, it is characterized in that, including shell, the shell clockwise direction includes handheld portion, drive portion, liquid carrying portion and spinning / spray portion in sequence;The handheld portion is equipped with start-stop switch, the drive portion is equipped with power supply, the liquid carrying portion is equipped with several liquid carrying cabins and the drive device located below liquid carrying cabin, the drive portion provides power supply for drive device to make it link with liquid carrying portion, the liquid carrying portion realizes in situ self-mixing of liquid in liquid carrying cabin under the action of drive device and supplies liquid to spinning / spray portion, the spinning / spray portion carries out electrospinning / spray under the action of power supply.

[0008] In some embodiments, the handheld portion is sequentially provided with a start-stop switch, a display screen, a main control board and a switch board;The start-stop switch includes a control switch and a trigger switch, the main control board is connected with the trigger switch, and the switch board is connected with the control switch and the display screen.

[0009] In some embodiments, the control switch is provided with three working modes: liquid mixing mode, spinning mode and reset mode.

[0010] In some embodiments, the drive portion is provided with a battery as a power supply.

[0011] In some embodiments, the drive device is a stepper motor, the lead screw of the stepper motor is connected with a push rod at the bottom of the liquid carrying cabin, and the push rod moves axially under the drive of the lead screw;The number of the liquid carrying cabin is two.

[0012] In some embodiments, the liquid outlet of the liquid carrying cabin is respectively connected with the branch part of Y-shaped three-way hose, the other end of the Y-shaped three-way hose is connected with a spinning needle, and the Y-shaped three-way hose is further provided with a solenoid valve.

[0013] In some embodiments, the solenoid valve is arranged in the middle of the Y-shaped three-way hose, and can be opened and closed automatically.

[0014] In some embodiments, the liquid carrying portion is further provided with a high-voltage module, a liquid carrying cabin support and a motor support;The liquid carrying cabin support is used for mounting the liquid carrying cabin, and the motor support is used for mounting the stepper motor, and the high-voltage module is in communication with the power supply to provide high-voltage electrostatic for spinning / spray.

[0015] In some embodiments, a front cover detachably connected with the top of the shell is further included, and the spinning / spray portion is located inside the front cover.

[0016] Compared with the prior art, the utility model discloses the beneficial effects are: utilize the stepper motor screw rod under the control of control panel and motor drive board respectively can reciprocating motion, the piston of screw rod connection liquid carrying cabin, liquid carrying cabin connects the hose respectively, under the closed state of electromagnetic valve, two liquid carrying cabin liquid can intercommunicate and mix fully under the reciprocating motion of piston, can satisfy the different needs and use scene of user, mixes the solution or powder of specific function demand before use, solve the problem of long -term preservation of pre -mixing, on -the -spot mixing avoids the problem of pre -mixing and causes waste. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic diagram of electrospinning and spraying device based on in-situ self-mixing of solution shown in the utility model;

[0018] Figure 2 It is the internal structure diagram of electrospinning and spraying device based on in-situ self-mixing of solution shown in the utility model;

[0019] Figure 3 It is the three-dimensional schematic diagram of liquid carrying part shown in the utility model;

[0020] Figure 4 It is the structural schematic diagram of liquid carrying part shown in the utility model

[0021] Figure 5 It is Figure 3 The enlarged schematic diagram of A in the middle. DETAILED DESCRIPTION

[0022] The utility model will be explained in detail below in conjunction with each embodiment shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0023] As Figures 1-5 Shown, a kind of electrospinning and spraying device based on in-situ self-mixing of solution, including shell 1, the shell 1 clockwise direction includes hand-held part, drive part, liquid carrying part and spinning / spraying part in sequence;The hand-held part is equipped with start-stop switch, the drive part is equipped with power supply, the liquid carrying part is equipped with several liquid carrying cabins and the drive device located below liquid carrying cabin, the drive part provides power supply to drive device to make it link with liquid carrying part, the liquid carrying part realizes in-situ self-mixing of liquid in liquid carrying cabin under the action of drive device and supplies liquid to spinning / spraying part, the spinning / spraying part carries out electrospinning / spraying under the action of power supply.

[0024] The hand-held part is provided with start-stop switch, display screen 2, main control board 9 and switch board 10 in sequence; the start-stop switch comprises control switch 3 and trigger switch 5, the main control board 9 is connected with the trigger switch 5, and the switch board 10 is connected with the control switch 3 and the display screen 2. The control switch 3 is provided with three working modes: mixed liquid mode, spinning mode and reset mode. The display screen 2 can show the working mode and the spinning working conditions, such as voltage, spinning speed, humidity and temperature.

[0025] The driving part is provided with battery 11 as power supply. The driving device is step motor 8, the screw rod 24 of the step motor 8 is connected with the push rod 23 at the bottom of the liquid carrying cabin 21 and 22, and the push rod 23 moves axially under the driving of the screw rod 24; the number of the liquid carrying cabin is preferably two.

[0026] The liquid outlet of the liquid carrying cabin 21 and 22 is connected with the branch part 19 of Y-shaped three-way hose 25 respectively, the other end of the Y-shaped three-way hose 25 is connected with the spinning needle head 14, and the Y-shaped three-way hose 25 is further provided with electromagnetic valve 18.

[0027] The electromagnetic valve 18 is arranged in the middle of the collecting part of the Y-shaped three-way hose 25 and can be opened and closed automatically. In the embodiment, a one-way valve is arranged between the spinning needle head 14 and the electromagnetic valve 18 to prevent liquid backflow.

[0028] The liquid carrying part is further provided with high-voltage module 12, liquid carrying cabin support 13 and motor support 15; the liquid carrying cabin support 13 is used for mounting the liquid carrying cabin, the motor support 15 is used for mounting the step motor 8, and the high-voltage module 12 is connected with the power supply to provide high-voltage static electricity for spinning / spraying. The liquid carrying cabin support 13 is clamped in the shell 1, the liquid carrying cabin support 13 is detachable with the shell 1, the inside of the liquid carrying cabin support 13 is coaxially arranged with the screw rod 24, so as to ensure that the piston in the liquid carrying cabin 21 and 22 is pushed when the screw rod 24 advances, and liquid can flow out of the spinning needle head 14 at the head of the liquid carrying cabin support 13.

[0029] The device further comprises front cover 4 which is detachably connected with the top of the shell 1, and the spinning / spraying part is located in the inside of the front cover 4. The front cover 4 is further provided with set screw 20, the anode line of the high-voltage module 12 is mounted on the liquid carrying cabin support 13 and is in conduction with the spinning needle head 14.

[0030] Working principle:

[0031] (1) In-situ self-mixing principle: Solenoid valve 18 is located at the position of Y-type three-way hose 25. When control switch 3 selects "mixing mode", the solenoid valve is closed. At this time, one end of Y-type three-way hose 25 is closed, and the two materials will be fully mixed under the stepper motor 8. After mixing, the piston of the right liquid tank 22 moves to the bottom and is in an empty state. The left liquid tank 21 is filled with the mixture. At this time, the firing switch 5 is activated to start spinning / spraying. The left motor screw starts, and the equipment starts spinning / spraying the mixture. At this time, solenoid valve 18 is in the open state. Of course, it is also possible that the left liquid tank 21 is empty and the right liquid tank 22 is filled with the mixture.

[0032] (2) Electrospinning principle: Press the trigger switch 5. At this time, the solenoid valve 18 opens. The mixed spinning liquid in the liquid-carrying chamber is pushed by the stepper motor screw 24 and transported to the spinning needle 14 through the hose k. The spinning needle 14 has high voltage static electricity output by the high voltage module 12. The liquid transported to the spinning needle 14 carries high voltage static electricity and is then sprayed out at a certain speed, forming nanofibers / nanoparticles at the nozzle.

[0033] Depending on the material being prepared, the device can be configured to use either a spinning needle 14 or a spraying device.

[0034] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electrospinning and spraying device based on in-situ self-mixing of solution, characterized in that, The application relates to a handheld electrospinning device, which comprises a shell (1) sequentially comprising a handheld part, a driving part, a carrier liquid part and a spinning / spraying part in a clockwise direction; the handheld part is provided with an on-off switch, the driving part is provided with a power supply, the carrier liquid part is provided with a plurality of carrier liquid cabins and driving devices below the carrier liquid cabins, the driving part provides power supply for the driving devices to drive the carrier liquid part, the carrier liquid part realizes in-situ self-mixing of liquid in the carrier liquid cabins under the action of the driving devices and supplies liquid to the spinning / spraying part, and the spinning / spraying part carries out electrospinning / spraying under the action of the power supply.

2. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 1, wherein, The handheld part is sequentially provided with an on-off switch, a display screen (2), a main control board (9) and a switch board (10); the on-off switch comprises a control switch (3) and a trigger switch (5), the main control board (9) is connected with the trigger switch (5), and the switch board (10) is connected with the control switch (3) and the display screen (2).

3. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 2, wherein, The control switch (3) is provided with three working modes, namely a liquid mixing mode, a spinning mode and a reset mode.

4. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 1, wherein, The driving part is provided with a battery (11) as the power supply.

5. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 4, wherein, The driving device is a stepping motor (8), a lead screw (24) of the stepping motor (8) is connected with a push rod (23) at the bottom of the carrier liquid cabin, the push rod (23) moves axially under the driving of the lead screw (24), and the number of the carrier liquid cabins is two.

6. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 5, wherein, Branches (19) of Y-shaped three-way hoses (25) are respectively connected with liquid outlets of the carrier liquid cabins, the other end of the Y-shaped three-way hose (25) is connected with a spinning needle (14), and the Y-shaped three-way hose (25) is further provided with an electromagnetic valve (18).

7. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 6, wherein, The electromagnetic valve (18) is arranged in the middle of a collecting part of the Y-shaped three-way hose (25) and can be opened and closed automatically.

8. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 6, wherein, The carrier liquid part is further provided with a high-voltage module (12), a carrier liquid cabin support (13) and a motor support (15); the carrier liquid cabin support (13) is used for mounting the carrier liquid cabin, the motor support (15) is used for mounting the stepping motor (8), and the high-voltage module (12) is in communication with the power supply to provide high-voltage electrostatic for the spinning / spraying.

9. The solution-based in-situ self-mixing electrospinning and spraying device according to claim 1, wherein, The application further comprises a front cover (4) which is detachably connected with the top of the shell (1), and the spinning / spraying part is arranged in the inside of the front cover (4).

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