A light source heating component and a preparation device that can be used for the formation of micro-nano three-dimensional structures

Abstract

A light source heating component and a preparation device that can be used for micro-nano three-dimensional structure molding. Relates to the field of micro-nano manufacturing. The light source of the light source heating component is a linear light source for heating. It has a simple structure and can effectively control the curing rate, optimize the molding accuracy, and improve the three-dimensional molding quality during the micro-nano molding process, which has positive significance for improving and optimizing the micro-nano molding process. With the help of the light source heating component, the preparation device has a simple structure, high molding accuracy, and high preparation efficiency, and can realize the rapid and accurate molding of a variety of complex micro-nano structures, and has a good three-dimensional molding effect.

Description

Technical Field

[0001] The present invention relates to the field of micro-nano manufacturing, and in particular, to a light source heating component and a preparation device for forming micro-nano three-dimensional structures. Background Art

[0002] In recent years, micro-nano electronic sensors based on micro-nano processing technology have attracted extensive attention due to their advantages such as small size, low power consumption, high sensitivity, and high degree of integration. Common micro-nano processing technologies include mechanical micro-processing technology, laser processing technology, photolithography etching technology, electroforming deposition technology and other subtractive preparation processes. Traditional subtractive micro-nano processing technology faces problems such as single material variety, high cost, and environmental pollution, which greatly limit the development of micro-nano electronic sensors. With the development of micro-nano processing technology, additive micro-nano processing technology has been gradually improved. Among them, the method of micro-nano scale pattern printing using electrospinning direct writing method has attracted extensive attention due to its high flexibility, good material compatibility, low cost, and environmental friendliness, and has broad application prospects. However, traditional printing methods are difficult to complete the preparation of complex multi-layer microstructures. Therefore, a new printing process is urgently needed in the field of micro-nano preparation to solve the problems of poor accuracy and difficulty in three-dimensional forming of traditional micro-nano printing processes.

[0003] In view of this, the present application is specifically proposed. Summary of the Invention

[0004] The first object of the present invention is to provide a light source heating component with a simple structure, which can effectively optimize the forming accuracy, improve the preparation rate, and improve the three-dimensional forming quality during the micro-nano forming process, and has positive significance for improving and optimizing the micro-nano forming process.

[0005] The second object of the present invention is to provide a preparation device with a simple structure, high forming accuracy, and high preparation efficiency, which can realize the rapid and accurate forming of micro-nano structures and has a good three-dimensional forming effect.

[0006] The embodiments of the present invention are implemented as follows:

[0007] A light source heating component for forming micro-nano three-dimensional structures, wherein the light source of the light source heating component is a linear light source for heating.

[0008] Furthermore, the light source heating component further has a control mechanism for adjusting the irradiation position of the light source.

[0009] Furthermore, the control mechanism includes: a first adjustment kinematic pair for adjusting the irradiation position of the light source along a first preset direction.

[0010] Further, the control mechanism further includes: a second adjustment kinematic pair for adjusting the irradiation position of the light source along a second preset direction. The first preset direction is perpendicular to the second preset direction.

[0011] Further, the control mechanism includes: a controller for controlling the on / off and light intensity of the light source. The light sources are continuously arranged along a first preset direction, and all the light sources are electrically connected to the controller so that the controller can separately control each light source.

[0012] Further, the light sources are simultaneously continuously arranged along a second preset direction, and the light sources are continuously arranged along the first preset direction and the second preset direction in an array distribution.

[0013] A preparation device applicable to the formation of micro-nano three-dimensional structures, which includes: the above-mentioned light source heating component.

[0014] Further, the preparation device includes:

[0015] A forming component;

[0016] A feeding component;

[0017] A gas supply component;

[0018] A collecting plate for receiving the formed material output by the forming component;

[0019] A power supply component, one pole of which is electrically connected to the needle tube of the forming component, and the other pole is electrically connected to the collecting plate or grounded; and

[0020] A displacement control component for driving the movement of the forming component or the collecting plate.

[0021] Further, the control mechanism includes: a controller for controlling the on / off and light intensity of the light source. The light sources are continuously arranged along a first preset direction, and all the light sources are electrically connected to the controller so that the controller can separately control each light source. The first preset direction is perpendicular to the plate surface of the collecting plate.

[0022] Further, the light sources are simultaneously continuously arranged along a second preset direction, and the light sources are continuously arranged along the first preset direction and the second preset direction in an array distribution. The second preset direction is along the plate surface of the collecting plate.

[0023] The beneficial effects of the embodiments of the present invention are:

[0024] The inventors of the present application have found through research that in the traditional electrospinning direct writing three-dimensional structure forming technology, under the action of an external electric field, the solvent in the jet volatilizes, and a cured micro / nano fiber structure is obtained on the collecting plate. However, due to the short distance between the nozzle and the collecting plate, it is difficult for the solvent to volatilize quickly and completely, and adhesion will occur during the deposition of the next layer of fibers, affecting precise three-dimensional forming. In addition, the characteristic scale of micro / nano fibers is small, and precise three-dimensional forming places high requirements on the strength of the fiber structure. Incomplete curing will cause fiber deformation and collapse, while excessive curing degree will lead to insufficient bonding force between fiber layers, making it difficult to achieve precise stacking forming of multi-layer fiber structures.

[0025] The inventors of the present application have innovatively proposed a special light source heating component that can be used for micro / nano three-dimensional structure forming. The light source heating component can be used to irradiate the formed structure on the collecting plate during the forming process.

[0026] Introduce a method of regulating the curing speed of micro / nano fiber layers by using a linear light source. The light source acts as an auxiliary heat source to heat the fibers, improving the solvent volatilization speed to enhance the forming strength of the three-dimensional micro / nano fiber structure and achieve precise three-dimensional forming.

[0027] The preparation device provided by the embodiments of the present invention utilizes the light source heating component to achieve the effects of simple structure, high forming accuracy, and high preparation efficiency, and can achieve rapid and accurate forming of micro / nano structures with good three-dimensional forming effects.

[0028] Generally speaking, the light source heating component provided by the embodiments of the present invention has a simple structure, can effectively reduce external field interference, optimize forming accuracy, and improve structural strength during the micro / nano forming process, which has a positive significance for improving and optimizing the micro / nano forming process. The preparation device provided by the embodiments of the present invention has a simple structure, high forming accuracy, and good structural strength, and can achieve rapid and accurate forming of micro / nano structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of the light source heating component provided by the embodiments of the present invention;

[0031] Figure 2 It is a schematic structural diagram of the preparation device provided by the embodiments of the present invention;

[0032] Figure 3 For Figure 2Schematic diagram of the forming component of the preparation device;

[0033] Figure 4 is Figure 2 Schematic diagram of the forming component of the preparation device during operation;

[0034] Figure 5 is Figure 2 Schematic diagram of the preparation device when preparing a single-layer micro-nano structure;

[0035] Figure 6 is Figure 2 Schematic diagram of the preparation device when preparing a multi-layer micro-nano structure;

[0036] Figure 7 is Figure 2 Schematic diagram of the preparation device when preparing a suspended micro-nano structure;

[0037] Figure 8 is Figure 3 Schematic diagram of the structure of the preparation device when using a light source heating component with other structures.

[0038] Icons: Forming component 100; Material channel 110; First receiving port 111; First output port 112; Air flow channel 120; Second receiving port 121; Second output port 122; First syringe 130; Second syringe 140; Preparation device 1000; Feeding component 1100; Gas supply component 1200; Collection plate 1300; Power supply component 1400; Displacement control component 1500; Light source heating component 1600; Light source 1610; Controller 1620. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0041] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] The terms "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0044] Embodiment

[0045] Please refer to the figure. This embodiment provides a light source heating assembly 1600 that can be used for micro-nano three-dimensional structure forming. The light source 1610 of the light source heating assembly 1600 is a linear light source for heating.

[0046] The inventors of the present application have found through research that: in the traditional electrospinning direct writing three-dimensional structure forming technology, under the action of an external electric field, the solvent in the jet volatilizes, and a cured micro-nano fiber structure is obtained on the collecting plate 1300. However, due to the short distance between the nozzle and the collecting plate 1300, the solvent is difficult to volatilize quickly and completely, and adhesion will occur during the deposition of the next layer of fibers, affecting precise three-dimensional forming. In addition, the characteristic scale of the micro-nano fibers is small, and precise three-dimensional forming puts forward higher requirements for the strength of the fiber structure. Incomplete curing will cause fiber deformation and collapse, while excessive curing degree will lead to insufficient bonding force between fiber layers, making it difficult to achieve precise stacked forming of multi-layer fiber structures.

[0047] The inventors of the present application innovatively propose a special light source heating assembly 1600 that can be used for micro-nano three-dimensional structure forming. The light source heating assembly 1600 can be used to irradiate the forming material on the collecting plate 1300 during the forming process.

[0048] Introduce a method of regulating the curing speed of micro-nano fiber layers by using a linear light source. The light source 1610 is used as an auxiliary heat source to heat the fibers, improve the solvent volatilization speed, so as to improve the forming strength of the three-dimensional micro-nano fiber structure and achieve precise three-dimensional forming.

[0049] Generally speaking, the light source heating assembly 1600 provided by the embodiment of the present invention has a simple structure, can effectively reduce external field interference, optimize the forming accuracy, and improve the preparation rate during the micro-nano forming process, which has positive significance for improving and optimizing the micro-nano forming process.

[0050] Furthermore, the light source heating assembly 1600 also has a control mechanism for adjusting the irradiation position of the light source 1610.

[0051] Specifically, the first setting mode of the control mechanism may include: a first adjustment kinematic pair (not shown in the figure) for adjusting the irradiation position of the light source 1610 along a first preset direction, and for adjusting the height direction of the irradiation position of the light source 1610 to adapt to different thicknesses and numbers of layers for the forming work.

[0052] On this basis, the control mechanism can also be configured with: a second adjustment kinematic pair (not shown in the figure) for adjusting the irradiation position of the light source 1610 along a second preset direction. Wherein, the first preset direction is perpendicular to the second preset direction. The second kinematic pair is used to adjust the movement of the irradiation position of the light source 1610 along the width / length direction of the collection plate 1300 to adapt to the forming operations at different planar positions.

[0053] Of course, the control mechanism can also be in other forms. For example, the second setting mode can be: the control mechanism includes a controller 1620 for controlling the on / off and light intensity of the light source 1610. The light sources 1610 are continuously arranged along a first preset direction, and all the light sources 1610 are electrically connected to the controller 1620 so that the controller 1620 can separately control each light source 1610. The first preset direction can be set along the height direction of the collection plate 1300 to adapt to different thicknesses and numbers of layers for the forming work, or can be set along the width / length direction of the collection plate 1300 to adapt to the forming work at different planar positions.

[0054] On this basis, the light sources 1610 can also be continuously arranged along a second preset direction at the same time. The light sources 1610 being continuously arranged along the first preset direction and the second preset direction results in an overall array distribution. At this time, the first preset direction can be set along the height direction of the collection plate 1300, and the second preset direction can be set along the width / length direction of the collection plate 1300, so as to achieve omnidirectional irradiation of the molding material on the collection plate 1300.

[0055] In this embodiment, the second setting mode is adopted. By using the controller 1620 to control the corresponding light source 1610 at the corresponding position to turn on and irradiate at different positions of the jet during the forming process, and configuring an appropriate light intensity, the forming quality is ensured. The light sources 1610 at other positions are in the off state to avoid interference. As the forming progresses, the position of the forming needle relative to the collection plate 1300 changes, and then the controller 1620 can be used to control the corresponding light source 1610 to turn on with an appropriate intensity, so as to achieve continuous forming.

[0056] In general, the independent control of the line light source of the light source heating component 1600 ensures the consistency of the curing degree of different layers of fibers, and realizes the precise molding of the three-dimensional micro-nano structure. The light source heating component 1600 promotes the volatilization of the solvent, accelerates the curing of the fibers, improves the molding strength of the three-dimensional micro-nano structure, and contributes to the precise molding of the three-dimensional micro-nano structure.

[0057] Among them, each layer of fiber corresponds to an independent light source 1610 (linear light source) with controllable light intensity. As the fiber stacking height increases, the micro-nano fiber structure is heated in a controllable manner, and the temperature response speed is fast. The material compatibility is good, and the use of a linear light source to heat the material can be adapted to a variety of polymer materials, and the composite micro-nano three-dimensional structure with different layers of fibers made of different materials can be regulated. The linear light source has high heating position accuracy, and the curing speed of each layer of micro-nano fibers can be accurately controlled. The linear light source has a simple structure and flexible position, and the design of parallel light rays can be applied to the precise molding of a variety of complex structures. It can be used to achieve independent jet curing molding control and realize the composite molding of micro-nano structures with various mechanical strengths or different material properties. The intensity of each light source 1610 can be independently controlled to ensure the consistency of the curing degree of different layers of fibers, improve the molding strength of the three-dimensional micro-nano fiber structure, and achieve precise three-dimensional molding.

[0058] This embodiment also provides a preparation device 1000 that can be used for micro-nano three-dimensional structure molding, which includes: a light source heating component 1600.

[0059] In this embodiment, the preparation device 1000 also includes: a molding component 100, a material feeding component 1100, an air supply component 1200, a collecting plate 1300 for receiving the molding material output by the molding component 100, a power supply component 1400 (one pole of which is conductively connected to the second needle tube 140 of the molding component 100, and the other pole is conductively connected to the collecting plate 1300 or is grounded), and a displacement control component 1500 for driving the molding component 100 or the collecting plate 1300 to move.

[0060] For details, please refer to Figures 1 - 2 The molding assembly 100 provided in this embodiment and which can be used for molding micro-nano three-dimensional structures includes: a material channel 110 and an airflow channel 120. The airflow channel 120 is arranged along the circumference of the material channel 110, and the airflow channel 120 is arranged around the material channel 110, so that the airflow channel 120 surrounds the material channel 110. The flow directions of the airflow channel 120 and the material channel 110 are the same, that is, the airflow direction in the airflow channel 120 and the material flow direction in the material channel 110 are the same.

[0061] The material channel 110 has a first receiving port 111 for receiving materials and a first output port 112 for outputting materials. The air flow channel 120 has a second receiving port 121 for receiving auxiliary gas and a second output port 122 for outputting auxiliary gas. Among them, the first receiving port 111 and the second receiving port 121 are located at the same end, and the first output port 112 and the second output port 122 are located at the same end.

[0062] During use (taking the electrospinning direct writing process as an example), the printing material enters the material channel 110 through the first receiving port 111 and is ejected from the first output port 112 through the material channel 110. The auxiliary gas (taking nitrogen as an example) enters the air flow channel 120 through the second receiving port 121 and is ejected from the second output port 122 through the air flow channel 120. Under the action of the electric field force, the printing material forms a Taylor cone at the tip of the first output port 112 and then forms a fiber structure, thereby forming on the forming plate. The auxiliary gas flow ejected from the second output port 122 has a high degree of directivity and has a high degree of restrictive effect on the material ejected from the first output port 112, ensuring accurate forming of the material and maintaining the accuracy of the ejection direction, greatly improving the forming accuracy and fineness.

[0063] In addition, the flow direction of the auxiliary gas flow is the same as the material flow direction, and the auxiliary gas flow wraps around the outside of the material, having a strong constraining effect on the material, ensuring the accuracy of the material deposition position, making the formed fiber structure compact and stable, avoiding the scattering of the fiber structure, and greatly improving the forming quality and forming accuracy. On the other hand, the auxiliary gas flow can also promote solvent volatilization and increase the curing speed.

[0064] It should be noted that the auxiliary gas flow generated through the second output port 122 of the air flow channel 120 also has a protective effect on the material and the fiber structure, equivalent to forming a barrier between the material and the outside, preventing floating impurity particles from being mixed in during the process of material fibrillation, greatly improving the "purity" of the fiber structure, and ensuring the quality of the fiber structure.

[0065] On the other hand, the barrier formed by the auxiliary gas flow effectively reduces the influence of external interference factors on the material, the fiber structure, and the fibrillation process of the material, improves the independence and anti-interference ability of the forming process, and has a positive significance for improving the final forming quality.

[0066] Due to the special structural design of the forming component 100, the forming process is very fine, with high accuracy and good reliability, which also promotes the improvement of the forming efficiency. With the assistance of the auxiliary gas flow, the forming rate can be further improved.

[0067] Further, along the flow directions of both the gas flow channel 120 and the material channel 110, the first outlet 112 extends beyond the second outlet 122. Through this design, it is ensured that the auxiliary gas flow is formed before the material is ejected, thereby ensuring that the material can be effectively protected and improving the forming assistance effect of the auxiliary gas flow on the material.

[0068] The forming assembly 100 includes: a first syringe 130 and a second syringe 140. The outer diameter of the first syringe 130 is smaller than the inner diameter of the second syringe 140. The second syringe 140 is sleeved on the first syringe 130. The lumen of the first syringe 130 constitutes the material channel 110, and the outer wall of the first syringe 130 and the inner wall of the second syringe 140 enclose the gas flow channel 120. In this embodiment, the first syringe 130 and the second syringe 140 are coaxially arranged, and the bodies of both the first syringe 130 and the second syringe 140 are cylindrical. Through this design, in the circumferential direction along the flow direction, a stable closed annular gas flow can be formed by the auxiliary gas flow to wrap the material and the fiber structure, further enhancing the forming effect and protection ability.

[0069] It should be noted that the second syringe 140 can be made of a conductive material, which is more convenient for application in the electrospinning direct writing process. At this time, one pole of the high-voltage power supply can be conductively connected to the second syringe 140, and the other pole can be conductively connected to the collecting plate 1300 or grounded.

[0070] The second syringe 140 of the forming assembly 100 is made of a conductive material. The feeding assembly 1100 is communicated with the first receiving port 111 of the forming assembly 100. The gas supply assembly 1200 is communicated with the second receiving port 121 of the forming assembly 100. The collecting plate 1300 is used to receive the formed material output by the forming assembly 100. One pole of the power supply assembly 1400 is conductively connected to the second syringe 140, and the other pole is conductively connected to the collecting plate 1300 or grounded (in this embodiment, the power supply assembly 1400 provides high voltage. The positive pole of the power supply assembly 1400 is conductively connected to the second syringe 140, and the negative pole of the power supply assembly 1400 is electrically connected to the collecting plate 1300 [at this time, the collecting plate 1300 is also made of a conductive material] or grounded). The displacement control assembly 1500 is used to drive the forming assembly 100 or the collecting plate 1300 to move, so as to realize the control of the spatial configuration of the formed three-dimensional structure, such as Figures 4 - 6 as shown.

[0071] Further, in this embodiment, the output direction of the forming assembly 100 is perpendicular to the collecting plate 1300, that is, both the first syringe 130 and the second syringe 140 are perpendicular to the plate surface of the collecting plate 1300.

[0072] Please refer to Figure 7, the preparation device 1000 further includes: a light source heating component 1600 for assisting in the shaping of the molding material, which provides heating for the molding material at the printing position through the light source heating component 1600, accelerates the volatilization of the solvent, and improves the shaping efficiency, shaping quality and shaping stability.

[0073] In this embodiment, the collection plate 1300 is driven by the displacement control component 1500, so that relative movement can occur between the shaping component 100 and the collection plate 1300 to achieve three-dimensional shaping. The light sources 1610 of the light source heating component 1600 of the preparation device 1000 are continuously arranged along the height direction of the collection plate, and the optical path directions of the light sources 1610 are all parallel to the plate surface of the collection plate 1300. The light sources 1610 are all electrically connected to the controller 1620 to respectively control the on / off of each group of light sources 1610 by using the controller 1620.

[0074] The light sources 1610 provide fixed-point heating for the molding material at the printing position, accelerate the volatilization of the solvent, and under the control of the controller 1620, control the on / off and voltage magnitude of the light sources 1610 at different height positions (to achieve the control of light intensity), while adapting to different printing positions, provide different heating temperatures for the printed pattern, and prevent damage to the printed material.

[0075] Through the above design, the displacement control component 1500 is used to control the movement of the collection plate 1300 in the horizontal direction, while the light source heating component 1600 can achieve the shaping and curing of fibers with different thicknesses and different layers.

[0076] The preparation device 1000 uses line light source focusing, can perform follow-up controllable heating as the fiber layers are stacked, the positions of the fiber layers correspond one by one to the positions of the line light sources, no moving parts are required, the control is simple, and it can be achieved by using the controller 1620 for control. The light rays between the light sources 1610 are parallel rays, avoiding the blockage of micro-nano structures, and can meet the shaping of various structures.

[0077] It should be noted that, in this embodiment, the auxiliary gas can be an inert gas or other protective gases (it should be noted that the selected protective gas cannot have a negative impact on the normal shaping reaction, and on this basis, it can be flexibly selected). The displacement control component 1500 can be a precision displacement controller 1620, and of course it can also be other adjustment components that can adjust the position. The feeding component 1100 can be composed of an injection pump and a syringe, or can be a feeding pump, an infusion pump or other supply devices that can be used for spraying material supply.

[0078] Furthermore, there are two groups of light source heating components 1600, and the two groups of light source heating components 1600 are respectively arranged on opposite sides of the collection plate 1300 for irradiating the shaping area on the collection plate 1300 from both sides.

[0079] When forming a multi-layer structure, as the number of layers increases, its height relative to the collection plate 1300 will gradually rise. At this time, by controlling the light source 1610 at the corresponding irradiation height to turn on through the controller 1620, the forming work corresponding to the height and thickness can be adapted. Of course, the light source heating component 1600 can also adopt other forms, such as Figure 8 the situation shown

[0080] In summary, the light source heating component 1600 has a simple structure, can effectively reduce external field interference, optimize the forming accuracy, and improve the preparation rate during the micro-nano forming process, which has a positive significance for improving and optimizing the micro-nano forming process. The preparation device 1000 has a simple structure, high forming accuracy, and high preparation efficiency, and can realize the rapid and accurate forming of micro-nano structures.

[0081] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A light source heating component that can be used for forming micro-nano three-dimensional structures, characterized in that, The light source of the light source heating component is a linear light source for heating; the light source heating component further has a control mechanism for adjusting the irradiation position of the light source to control the curing speed of the micro-nano fiber lamination. The control mechanism includes: a first adjustment kinematic pair for adjusting the irradiation position of the light source along a first preset direction; the control mechanism further includes: a second adjustment kinematic pair for adjusting the irradiation position of the light source along a second preset direction; wherein, the first preset direction is perpendicular to the second preset direction; the control mechanism includes: a controller for controlling the on / off and light intensity of the light source; the light sources are continuously arranged along the first preset direction, and all the light sources are electrically connected to the controller so that the controller can separately control each light source; the light sources are simultaneously continuously arranged along the second preset direction, and the light sources are continuously arranged along the first preset direction and the second preset direction in an array distribution.

2. A preparation device that can be used for the formation of micro-nano three-dimensional structures, characterized in that, Including: The light source heating component according to claim 1.

3. The preparation device according to claim 2, characterized in that, The preparation device includes: A forming component; A feeding component; An air supply component; A collecting plate for receiving the formed material output by the forming component; A power supply component, one pole of which is electrically connected to the needle tube of the forming component, and the other pole is electrically connected to the collecting plate or grounded; and A displacement control component for driving the movement of the forming component or the collecting plate.

4. The production device according to claim 3, characterized in that The control mechanism includes: a controller for controlling the on / off and light intensity of the light source; the light sources are continuously arranged along a first preset direction, and all the light sources are electrically connected to the controller so that the controller can separately control each light source; the first preset direction is perpendicular to the plate surface of the collecting plate.

5. The preparation device according to claim 4, characterized in that, The light sources are simultaneously continuously arranged along a second preset direction, and the light sources are continuously arranged along the first preset direction and the second preset direction in an array distribution; the second preset direction is along the plate surface of the collecting plate.

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