Electromagnetically-driven high-flux internal ultrasonic atomization type aerosol printing nozzle

Abstract

The utility model discloses an electromagnetically-driven high-flux internal ultrasonic atomization type aerosol printing spray head. The spray head comprises a spray head base body module, an ultrasonic atomization module, a multi-material mixing module and a shutter control module. Wherein the ultrasonic atomization module is installed in the spray head base body module, the multi-material mixing module is installed above the ultrasonic atomization module and connected with the spray head base body module, and the shutter control module is installed on the side face of the spray head base body module and is evenly distributed with the ultrasonic atomization module. According to the utility model, real-time proportioning of multiple materials can be realized, the flowability, the adhesion and the curing speed in the printing process can be better controlled, the printing quality is improved, the printing of complex structures and functionally graded materials is realized, and a better printing effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro-nano processing and manufacturing, and particularly relates to an electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle. Background Technique

[0002] Aerosol printing technology is a new non-contact advanced manufacturing technology. By controlling the deposition of particles suspended in a gas, 3D printing at the micro-nano level can be achieved. This technology can be used to prepare complex microstructures, such as optoelectronic devices, nano-sensors, human-machine interface probes, etc., and has great application prospects in the fields of aerospace, military defense, medical and health, etc.

[0003] Compared with inkjet printing, aerosol printing technology has the unique ability to directly print various electronic and biological materials onto almost any substrate, is suitable for irregular surfaces, can achieve conformal deposition printing on corners and grooves, and has higher printing resolution. However, the current aerosol printing nozzles still have the following problems: First, the ink is already prepared before printing. During the printing process, the material ratio is the same at different positions of the entire model, and real-time adjustment of different material ratios cannot be achieved. Second, the current aerosol printers arrange the printing nozzle and the atomization device separately, and do not integrate the atomization device inside the nozzle, resulting in some materials remaining in the trachea during the atomization process. In the lightest case, it causes waste of materials, and in the worst case, the aerosol accumulates in the trachea, affecting the printing quality. Therefore, for those skilled in the art, how to achieve real-time multi-material ratio and improve printing quality is a technical problem that needs to be solved currently. Summary of the Invention

[0004] In view of this, the utility model provides an electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle that can achieve real-time multi-material ratio.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle includes: a nozzle base module, an ultrasonic atomization module, a multi-material mixing module, and a shutter control module. The ultrasonic atomization module is installed inside the nozzle base module, the multi-material mixing module is installed above the ultrasonic atomization module and connected to the nozzle base module, and the shutter control module is installed on the side of the nozzle base module and evenly distributed with the ultrasonic atomization module.

[0007] The nozzle base module includes: a protective cover; a multi-functional base fixedly installed on the protective cover in a threaded structure; a sheath gas nozzle fixedly installed at the lower end of the multi-functional base in a hole-shaft structure; an aerosol channel joint fixedly installed at the lower end of the multi-functional base in a threaded structure; a rubber ring for sealing the contact surface between the multi-functional base and the aerosol channel joint; an aerosol focusing joint fixedly installed at the lower end of the aerosol channel joint in a hole-shaft structure; a nozzle protective sleeve fixedly installed at the lower end of the aerosol focusing joint in a threaded structure; a replaceable nozzle fixedly installed at the lower end of the aerosol focusing joint and inside the nozzle protective sleeve.

[0008] The ultrasonic atomization module includes: an atomization bottle; an ultrasonic flow guide fixedly installed at the upper end of the atomization bottle; an atomization bottle cap fixedly installed at the upper end of the ultrasonic flow guide; the atomization bottle cap has Hole Ⅰ and Hole Ⅱ; a nitrogen gas pipe fixedly installed in Hole Ⅱ at the upper end of the atomization bottle cap; an atomization mover fixedly installed at the lower end of the atomization bottle; a protective cover fixedly installed at the lower end of the atomization mover; an iron core fixedly installed at the lower end of the atomization mover and inside the protective cover; a baffle fixedly installed outside the atomization mover and the protective cover.

[0009] The multi-material mixing module includes: a carrier gas pipe fixedly installed in Hole Ⅰ at the upper end of the atomization bottle cap; a mixing channel fixedly installed at the outlet of the carrier gas pipe; a mixer fixedly installed at the lower end of the mixing channel in a hole-shaft structure; a sealed channel fixedly installed at the lower end of the mixer in a hole-shaft structure.

[0010] The air inlets Ⅰ, Ⅱ, and Ⅲ of the mixing channel are respectively connected to three identical carrier gas pipes, and then connected to ultrasonic atomization modules with the same structure.

[0011] The shutter control module includes: a motor mounting bracket fixedly installed at the lower side of the multi-functional base; a stepper motor fixedly installed on the motor mounting bracket; a nut Ⅰ fixedly installed on the stepper motor in a threaded structure; a gasket Ⅰ fixedly installed at the lower end of the nut Ⅰ; a shutter fixedly installed at the lower end of the gasket Ⅰ and fixedly installed on the stepper motor in a threaded structure; a gasket Ⅱ fixedly installed at the lower end of the shutter; a nut Ⅱ fixedly installed at the lower end of the gasket Ⅱ and fixedly installed on the stepper motor in a threaded structure.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The device of the present utility model is provided with three ultrasonic atomization modules. Each module adopts the same design and can independently atomize one material respectively. By using a flow controller to monitor and adjust the working state of each atomization module in real time, precise proportioning and real-time adjustment of three materials can be achieved. The prominent advantage of this design is that it can solve the problem of unstable material proportioning in complex process flows.

[0014] There is a dedicated space inside the nozzle base module for placing the ultrasonic atomization module, integrating the atomizer and the nozzle into one. Compared with the way of placing the atomizer and the nozzle separately, the prominent advantage of this structure is to provide higher space utilization and a more simplified installation process. More importantly, it reduces the gas path connection and potential leakage points, ensuring the continuity and accuracy of the aerosol from generation to ejection. At the same time, a protective cover is equipped above the multi-functional base, which can protect the gas path and the ultrasonic atomization module from being damaged or exposed during use. And the protective cover and the multi-functional base are connected by a threaded connection, which is convenient for filling, cleaning and replacing the atomization bottle and the trachea.

[0015] There is an aerosol delivery channel inside the multi-functional base. The channel is tapered from wide to narrow. The prominent advantage of this structure is that it can accelerate the air flow speed, provide more effective air flow guidance and the delivery of aerosol particles, thereby improving the atomization efficiency of the aerosol and the uniformity of ejection. Another prominent advantage of this structure is that it can reduce the deposition and aggregation of the aerosol in the channel, reducing the risk of blockage. Sheath gas is introduced at the bottom of the multi-functional base to form an annular confinement gas to confine and guide the aerosol droplets. By controlling the flow controller to adjust the sheath gas flow rate, the minimum feature line width of the printed line can be affected, that is, the larger the sheath gas flow rate, the smaller the minimum feature line width. The aerosol channel joint installed at the lower end of the multi-functional base is used for the delivery of the aerosol and the sheath gas, and can be disassembled for easy cleaning of the multi-functional base. The internal channel of the aerosol focusing joint is still tapered from wide to narrow. The purpose of setting the tapered channel twice in the nozzle base module is to adjust the ejection speed and direction of the aerosol multiple times by gradually reducing the size of the channel to achieve higher printing accuracy. The nozzle adopts a replaceable structure, which is convenient to replace different printing nozzles according to printing needs.

[0016] The ultrasonic atomization module uses the principle of electromagnetic drive to convert electrical energy into mechanical energy, so that the atomization mover generates high-frequency vibration under the magnetic field of the iron core. This high-frequency vibration disperses the liquid material in the atomization bottle into tiny droplets, forming an ultrasonic atomization effect. Subsequently, these droplets are further dispersed in nitrogen to form a stable aerosol. The bottom of the atomization bottle adopts a tapered structure, corresponding to the tapered surface of the ultrasonic flow guide, which can shape and guide the air flow generated during the atomization process, helping the aerosol after atomization to be evenly distributed and have a small particle size, forming a concentrated longitudinal flow. At the same time, there are partitions on the ultrasonic flow guide, which can further precisely guide the atomization air flow. This guiding method makes the atomization air flow wrap and compress the aerosol particle size in a tangential direction. The working mode of the above ultrasonic atomization module can not only improve the atomization efficiency, but also enhance the flexibility and uniformity of material mixing, making the device achieve a better atomization effect.

[0017] The output flow rate of each atomization module can be flexibly adjusted by controlling the flow controller. The multi-material mixing module mixes different aerosols input. Through this flow regulation mechanism, the accuracy and consistency of the material mixing ratio can be ensured, material waste can be reduced, and the different material ratio requirements of different parts of the printed model can be met.

[0018] The shutter control module is fixed on the side of the multi-functional base. It uses a stepping motor to control the shutter. At the same time, a groove is set at the tail of the shutter to timely abort the printing process. When printing is not required, the motor drives the shutter to move below the nozzle, which can effectively intercept and collect the aerosol residues of the nozzle. The outstanding advantage of this structure is that it can avoid the disorderly diffusion of the aerosol and reduce material waste. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the nozzle base module of the present invention;

[0022] Figure 3 It is a sectional view of the nozzle base module of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the ultrasonic atomization module of the present invention;

[0024] Figure 5 It is a sectional view of the ultrasonic atomization module of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the multi-material mixing module of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the shutter control module of the present invention;

[0027] Figure 8 It is a schematic diagram of the distribution of the internal gas pipeline of the nozzle of the present invention;

[0028] Figure 9 It is a schematic diagram of the aerosol passage of the present invention;

[0029] Figure 10 It is a flowchart of the preferred embodiment of the present invention.

[0030] Reference numerals:

[0031] 1 - Sprayer base module 11 - Protective cover 12 - Multifunctional base

[0032] 13 - Sheath gas nozzle 14 - Aerosol channel joint 15 - Aerosol focusing joint

[0033] 16 - Nozzle protective sleeve 17 - Rubber ring 18 - Replaceable nozzle

[0034] 2 - Ultrasonic atomization module 21 - Atomization bottle 22 - Ultrasonic deflector

[0035] 23 - Atomization bottle cap 23A - Hole Ⅰ 23B - Hole Ⅱ

[0036] 24 - Nitrogen tube 25 - Atomization mover 26 - Baffle

[0037] 27 - Protective cover 28 - Iron core 3 - Multi - material mixing module

[0038] 31 - Carrier gas tube 32 - Mixing channel 32A - Inlet Ⅰ

[0039] 32B - Inlet Ⅱ 32C - Inlet Ⅲ 33 - Mixer

[0040] 34 - Sealing channel 4 - Shutter control module 41 - Motor mounting bracket

[0041] 42 - Stepper motor 43 - Nut Ⅰ 44 - Spacer Ⅰ

[0042] 45 - Shutter 46 - Nut Ⅱ 47 - Spacer Ⅱ Detailed implementation mode

[0043] The present utility model provides an electromagnetic - driven high - throughput internal ultrasonic atomization aerosol printing nozzle. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further details the present utility model. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0044] The following makes a detailed description of the electromagnetic - driven high - throughput internal ultrasonic atomization aerosol printing nozzle of the present utility model in combination with embodiments.

[0045] As Figure 1 shown, the electromagnetic - driven high - throughput internal ultrasonic atomization aerosol printing nozzle includes: a sprayer base module 1, an ultrasonic atomization module 2, a multi - material mixing module 3, and a shutter control module 4.

[0046] As Figure 2 and Figure 3As shown in the figure, the nozzle base module 1 includes: a protective cover 11; a multifunctional base 12 fixedly installed on the protective cover 11 by a threaded structure; a sheath gas nozzle 13 fixedly installed at the lower end of the multifunctional base 12 by a hole-shaft structure; an aerosol channel joint 14 fixedly installed at the lower end of the multifunctional base 12 by a threaded structure; a rubber ring 17 for sealing the contact surface between the multifunctional base 12 and the aerosol channel joint 14; an aerosol focusing joint 15 fixedly installed at the lower end of the aerosol channel joint 14 by a hole-shaft structure; a nozzle protective sleeve 16 fixedly installed at the lower end of the aerosol focusing joint 15 by a threaded structure; a replaceable nozzle 18 fixedly installed at the lower end of the aerosol focusing joint 15 and inside the nozzle protective sleeve 16 by a hole-shaft structure.

[0047] As Figure 4 and Figure 5 shown in the figure, the ultrasonic atomization module 2 includes: an atomization bottle 21; an ultrasonic deflector 22 fixedly installed at the upper end of the atomization bottle 21; an atomization bottle cap 23 fixedly installed at the upper end of the ultrasonic deflector 22; the atomization bottle cap 23 has a hole Ⅰ 23A and a hole Ⅱ 23B; a nitrogen gas pipe 24 fixedly installed in the hole Ⅱ 23B at the upper end of the atomization bottle cap 23; an atomization mover 25 fixedly installed at the lower end of the atomization bottle 21; a protective cover 27 fixedly installed at the lower end of the atomization mover 25; an iron core 28 fixedly installed at the lower end of the atomization mover 25 and inside the protective cover 27; a baffle 26 fixedly installed on the outside of the atomization mover 25 and the protective cover 27.

[0048] As Figure 6 shown in the figure, the multi-material mixing module 3 includes: a carrier gas pipe 31 fixedly installed in the hole Ⅰ 23A at the upper end of the atomization bottle cap 23; a mixing channel 32 fixedly installed at the outlet of the carrier gas pipe 31; a mixer 33 fixedly installed at the lower end of the mixing channel 32 by a hole-shaft structure; a sealing channel 34 fixedly installed at the lower end of the mixer 33 by a hole-shaft structure. The air inlet Ⅰ 32A, air inlet Ⅱ 32B, and air inlet Ⅲ 32C of the mixing channel 32 are respectively connected to three identical carrier gas pipes 31, and further connected to the ultrasonic atomization modules 2 with the same structure.

[0049] As Figure 7 shown in the figure, the shutter control module 4 includes: a motor mounting bracket 41 fixedly installed at the lower side of the multifunctional base 12; a stepper motor 42 fixedly installed on the motor mounting bracket 41; a nut Ⅰ 43 fixedly installed on the stepper motor 42 by a threaded structure; a gasket Ⅰ 44 fixedly installed at the lower end of the nut Ⅰ 43; a shutter 45 fixedly installed at the lower end of the gasket Ⅰ 44 and fixedly installed on the stepper motor 42 by a threaded structure; a gasket Ⅱ 47 fixedly installed at the lower end of the shutter 45; a nut Ⅱ 46 fixedly installed at the lower end of the gasket Ⅱ 47 and fixedly installed on the stepper motor 42 by a threaded structure.

[0050] The working principle and process of the electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle of the present utility model will be described below.

[0051] 1. The aerosol jet printing operation of the nozzle base module 1

[0052] Figure 1 Three ultrasonic atomization modules 2 are placed in three slots inside the nozzle base module 1, integrating the atomizer and the nozzle into one body to form an internal atomization form. After being atomized by the ultrasonic atomization module 2, various materials form aerosols, and then flow into Figure 2 and Figure 3 the conical aerosol delivery channel inside the multifunctional base 12 in [], while introducing sheath gas from the sheath gas nozzle 13 and setting an annular sheath gas channel inside the multifunctional base 12, so that the sheath gas stably forms a ring, and then the sheath gas forms an annular confinement gas to confine and guide the aerosol droplets. The aerosol under the confinement of the sheath gas flows through the internal channel of the aerosol channel adapter 14 and the conical channel inside the aerosol focusing adapter 15 in sequence to form finer aerosol droplets, and finally is ejected from the replaceable nozzle 18, thus completing the aerosol jet printing operation.

[0053] 2. The atomization mechanism of the ultrasonic atomization module 2 for generating aerosols

[0054] Figure 4 Three different liquid materials are respectively placed in three atomization bottles 21, and the materials include but are not limited to metals, plastics, ceramics, biological materials, etc. During the atomization process, using the electromagnetic drive principle, electrical energy is converted into mechanical energy, so that the atomization mover 25 fixedly installed at the lower end of the atomization bottle 21 generates high-frequency vibration under the magnetic field of the iron core 28, and the liquid materials in the atomization bottle 21 are dispersed into tiny droplets under the vibration to form an ultrasonic atomization effect. Subsequently, these droplets are further dispersed in the nitrogen gas introduced from the nitrogen pipe 24 to form stable aerosols.

[0055] Figure 5 The conical structure at the bottom of the atomization bottle 21 in [] can correspond to the conical surface of the ultrasonic flow deflector 22 to shape and divert the airflow generated during the atomization process, making the aerosol distribution more uniform and the particle size finer, and forming a concentrated longitudinal flow to facilitate the export of the aerosol. The partition on the ultrasonic flow deflector 22 can further accurately divert the atomization airflow so that the atomization airflow wraps and compresses the aerosol particle size in a tangential direction. The above entire atomization process is the atomization mechanism of the ultrasonic atomization module 2 for generating aerosols.

[0056] 3. The mixing mechanism of the multi-material mixing module 3 for mixing different aerosols

[0057] Figure 6The air inlets Ⅰ32A, Ⅱ32B, and Ⅲ32C of the mixing channel 32 are respectively connected to three identical carrier gas pipes 31, and further connected to the ultrasonic atomization modules 2 with the same structure. Since three different liquid materials have been placed in three atomization bottles 21 respectively during the atomization process, the aerosols input into the air inlets Ⅰ32A, Ⅱ32B, and Ⅲ32C are different, which makes it possible for the aerosols to be proportioned into a new composite aerosol in the mixing channel 32. By controlling the flow controller, the output flow of each ultrasonic atomization module 2 can be flexibly adjusted, which makes the input flow of the multi-material mixing module 3 different. Therefore, mixed aerosols with different proportions can be formed, so as to achieve precise proportioning and real-time adjustment of multiple materials. The above completes the mixing and proportioning process of different aerosols.

[0058] 4. The printing abort action of the shutter control module 4

[0059] Figure 7 In the shutter control module 4, the stepping motor 42 is used to control the rotation of the shutter 45. When it is necessary to abort the printing process, the stepping motor 42 controls the shutter 45 to rotate to directly below the replaceable nozzle 18 to intercept the residual aerosol of the nozzle. A groove is provided at the tail of the shutter 45 to facilitate the collection of the aerosol sprayed into the shutter 45, thus completing the printing abort action.

[0060] 5. The dynamic control mechanism of the internal gas path of the aerosol printing nozzle

[0061] Figure 8 In the nitrogen gas and the sheath gas of the sheath gas nozzle 13 introduced into the ultrasonic atomization module 2 use the nitrogen gas cylinder as the gas source, and a flow controller is installed before each is introduced into the device to control the input flow. The power supply powers the ultrasonic atomization module 2, so that the electromagnetic drive plays a role to achieve the atomization function.

[0062] Figure 9 As can be seen from the internal gas flow directions of different gases in the nozzle, the nitrogen gas flows into the inside of the atomization bottle 21 from the nitrogen gas pipes 24 of the three ultrasonic atomization modules 2 respectively and acts on the tiny droplets formed by ultrasonic atomization. The aerosol formed after the action then flows upward from the inside of the ultrasonic flow guide 22 into the multi-material mixing module 3 for mixing. The mixed aerosol then flows downward along the internal channel of the nozzle base module 1. At the same time, the sheath gas is introduced from the sheath gas nozzle 13 to form an annular sheath gas channel to wrap around the periphery of the mixed aerosol and spray out from the replaceable nozzle 18 together with it.

[0063] 6. The preferred embodiment process of the present utility model is as Figure 10 shown, and it includes the steps:

[0064] S10. Inject different materials into multiple atomization bottles respectively, and use the electromagnetic drive principle to make the materials form tiny droplets through vibration;

[0065] S20. Introduce nitrogen into the nitrogen pipe and set the gas flow rate to form a stable aerosol, which flows out through the ultrasonic flow guide device;

[0066] S30. Control the output flow rates of different aerosols to form a mixed aerosol after passing through the mixing channel;

[0067] S40. Introduce sheath gas into the sheath gas nozzle and set the sheath gas flow rate;

[0068] S50. The mixed aerosol passes through the internal channels of the multi-functional base and the connector and is ejected from the replaceable nozzle to complete printing;

[0069] S60. After printing, the motor drives the shutter to move below the nozzle to intercept and collect the residual aerosol.

[0070] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements should all fall within the protection scope of the appended claims of the present invention.

Claims

1. An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle, comprising: Spray head base module (1), ultrasonic atomization module (2), multi-material mixing module (3), shutter control module (4); It is characterized in that the ultrasonic atomization module (2) is installed inside the spray head base module (1), the multi-material mixing module (3) is installed above the ultrasonic atomization module (2) and connected to the spray head base module (1), and the shutter control module (4) is installed on the side of the spray head base module (1) and evenly distributed with the ultrasonic atomization module (2).

2. An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle according to claim 1, characterized in that, The spray head base module (1) includes: a protective cover (11); a multi-functional base (12) fixedly installed on the protective cover (11) by a threaded structure; a sheath gas nozzle (13) fixedly installed at the lower end of the multi-functional base (12) by a hole-shaft structure; an aerosol channel joint (14) fixedly installed at the lower end of the multi-functional base (12) by a threaded structure; a rubber ring (17) sealing the contact surface between the multi-functional base (12) and the aerosol channel joint (14); an aerosol focusing joint (15) fixedly installed at the lower end of the aerosol channel joint (14) by a hole-shaft structure; a nozzle protective sleeve (16) fixedly installed at the lower end of the aerosol focusing joint (15) by a threaded structure; a replaceable nozzle (18) fixedly installed at the lower end of the aerosol focusing joint (15) and inside the nozzle protective sleeve (16) by a hole-shaft structure.

3. The electromagnetic drive high-throughput internal ultrasonic atomization aerosol printing nozzle according to claim 1, characterized in that, The ultrasonic atomization module (2) includes: an atomization bottle (21); an ultrasonic deflector (22) fixedly installed at the upper end of the atomization bottle (21); an atomization bottle cap (23) fixedly installed at the upper end of the ultrasonic deflector (22); the atomization bottle cap (23) has a hole Ⅰ (23A) and a hole Ⅱ (23B); a nitrogen gas pipe (24) fixedly installed in the hole Ⅱ (23B) at the upper end of the atomization bottle cap (23); an atomization mover (25) fixedly installed at the lower end of the atomization bottle (21); a protective cover (27) fixedly installed at the lower end of the atomization mover (25); an iron core (28) fixedly installed at the lower end of the atomization mover (25) and inside the protective cover (27); a baffle (26) fixedly installed on the outside of the atomization mover (25) and the protective cover (27).

4. An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle according to claim 1, characterized in that, The multi-material mixing module (3) includes: a carrier gas pipe (31) fixedly installed in the hole Ⅰ (23A) at the upper end of the atomization bottle cap (23); a mixing channel (32) fixedly installed at the outlet of the carrier gas pipe (31); a mixer (33) fixedly installed at the lower end of the mixing channel (32) by a hole-shaft structure; a sealing channel (34) fixedly installed at the lower end of the mixer (33) by a hole-shaft structure.

5. An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle according to claim 4, characterized in that, The inlet Ⅰ (32A), inlet Ⅱ (32B), and inlet Ⅲ (32C) of the mixing channel (32) are respectively connected to three identical carrier gas pipes (31), and further connected to ultrasonic atomization modules (2) with the same structure.

6. An electromagnetic-driven high-throughput internal ultrasonic atomization aerosol printing nozzle according to claim 1, characterized in that, The shutter control module (4) includes: a motor mounting bracket (41) fixedly installed at the lower end of the side surface of the multifunctional base (12); a stepping motor (42) fixedly installed on the motor mounting bracket (41); a nut I (43) fixedly installed on the stepping motor (42) in a threaded structure; a gasket I (44) fixedly installed at the lower end of the nut I (43); a shutter (45) fixedly installed at the lower end of the gasket I (44) and fixedly installed on the stepping motor (42) in a threaded structure; a gasket II (47) fixedly installed at the lower end of the shutter (45); a nut II (46) fixedly installed at the lower end of the gasket II (47) and fixedly installed on the stepping motor (42) in a threaded structure.

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