Detection device and detection method for component analysis of conductive printing ink

Abstract

The invention provides a detection device and a detection method for component analysis of conductive printing ink, and relates to the technical field of conductive printing ink detection.The detection device comprises an infrared spectrometer which is used for analyzing chemical components of the conductive printing ink and provided with a detection cavity and a detection unit, and a supporting table is fixedly arranged on the inner bottom face of the detection cavity; the tray assembly is driven by the alternating current motor to rotate, the conductive printing ink is influenced by centrifugal force, the conductive printing ink is stressed to flow under the action of the centrifugal force, the tray body can be heated through the heating wire in the rotating process of the tray assembly, and the conductive printing ink is in the highest fluidity state; the piezoelectric ceramic piece is started to apply high-frequency vibration to the conductive printing ink, the flowability of the conductive printing ink can be further improved through the high-frequency vibration, a worker only needs to smear the quantitative conductive printing ink on the surface of the tray body, and subsequent leveling operation is achieved through the tray assembly, so that convenience and rapidness are achieved.

Description

Technical Field

[0001] This invention belongs to the field of conductive printing ink detection technology, and more specifically, relates to a detection device and detection method for conductive printing ink component analysis. Background Technology

[0002] As a core material in emerging fields such as flexible electronics, the Internet of Things, and printed electronics, conductive printing inks' composition (such as conductive fillers, binders, solvents, and functional additives) directly determines the ink's conductivity, adhesion, printability, and long-term stability. With the miniaturization, flexibility, and high performance of electronic devices, stringent requirements are placed on the precise control of the conductive printing ink's composition. Composition analysis has become a crucial step in ink R&D optimization, production quality control, and application reliability assessment.

[0003] Currently, the compositional analysis of conductive printing inks mainly relies on spectroscopic detection methods (infrared spectroscopy, Raman spectroscopy), chromatographic detection methods (gas chromatography, liquid chromatography), mass spectrometry, and elemental analysis methods. Among these, the detection devices using spectroscopic methods include infrared spectrometers, which offer various detection modes such as transmission, diffuse reflectance, and total reflectance. However, conductive printing ink slurries are viscous liquids containing a large amount of conductive particles such as silver powder and carbon-based materials, and are completely opaque and cannot transmit light. Therefore, Fourier transform infrared spectroscopy is typically used for diffuse reflectance detection. When using infrared spectroscopy to analyze conductive printing inks, it is essential to ensure that the surface of the ink is flat (otherwise, it will lead to disordered infrared light reflection / scattering, with some light failing to interact effectively with the sample, resulting in weakened spectral signals and distorted peaks. Uneven surfaces will also cause chaotic infrared light reflection paths and excessive light scattering in some areas). (Some areas are obscured, causing fluctuations in the spectral peak shape and absorption intensity of the same batch of samples, resulting in poor repeatability.) Although existing conductive printing inks are pastes and semi-fluids, they will flow naturally and smoothly under gravity when detected by an infrared spectrometer, without causing surface unevenness. However, when using an infrared spectrometer to analyze the composition of conductive printing inks, it was found that if researchers apply the conductive printing ink with uneven force or speed when using a scraper or coating rod, or if there are impurities (dust) on the surface of the coating tool, it will cause scratches, local accumulation, or uneven thickness of the coating. Therefore, the application of conductive printing ink to the infrared spectrometer detection end is highly dependent on the application technique of the staff. If researchers with poor skills use an infrared spectrometer to detect conductive printing ink, it may lead to experimental failure, requiring secondary or even multiple tests, which will affect the detection efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a detection device and method for analyzing the composition of conductive printing inks.

[0005] A detection device for analyzing the composition of conductive printing inks, including...

[0006] An infrared spectrometer is used to analyze the chemical composition of conductive printing ink. It includes at least a detection cavity, a control unit, and a detection unit. The detection unit and control unit are existing technologies and are used to control the electronic components inside the infrared spectrometer. A support platform is fixed to the inner bottom surface of the detection cavity by bolts. The detection unit includes an infrared light source, a Michelson interferometer, a reflective optical component, an infrared detector, and a signal processing module. The infrared light source emits infrared light, which is modulated into interference light by the interferometer. The interference light passes through the reflective optical component and uniformly illuminates the surface of the conductive printing ink. The conductive printing ink selectively absorbs infrared light of a specific wavelength, and the remaining light undergoes diffuse reflection. The reflective optical component collects the diffusely reflected interference light and transmits it to the detector. The detector converts the optical signal into an electrical signal, which is then Fourier transformed by the signal processing module to output the ink's characteristic spectrum, thus achieving component analysis. The tray assembly includes a tray body, which is dome-shaped. The dome shape refers to the overall circular shape of the tray body, which has a stepped dome structure with a raised center and flat sides. The tray body is a thin sheet made of titanium alloy. The tray body is used to carry conductive printing ink. The tray body can vibrate at high frequency and rotate based on a first axis. When the tray body rotates, the conductive printing ink on its surface is subjected to centrifugal force. The first axis is an extension of the central axis of the tray body and is Z1. When the tray body rotates on the first axis, the conductive printing ink on its surface will flow to the outside of the tray body under the influence of centrifugal force. The flowing conductive printing ink will make its uneven surface more uniform and flat. The temperature of the tray body surface can be changed to heat the conductive printing ink, making it more fluid and easier to flatten. The mounting mechanism is used to mount the pallet assembly and can detect the angle of rotation of the pallet assembly. Drive mechanism, which is used to drive the tray assembly to rotate.

[0007] Preferably, the installation mechanism includes an annular turntable, an installation component, and a conductive component. The annular turntable is fixedly installed on the top surface of the support platform by screws. The side of the annular turntable away from the support platform is fixedly connected to the installation component by a bolt and nut. The annular turntable includes a movable part and a fixed part. The fixed part is fixedly connected to the support platform, and the movable part is fixedly connected to the installation component.

[0008] Preferably, the mounting assembly includes an annular mounting base, which is an annular structure made of stainless steel. The annular mounting base is fixedly connected to the side of the annular turntable away from the support platform by bolts and nuts. An annular groove is formed on the outer circumferential surface of the annular mounting base. A grating scale is fixedly installed in the annular groove by screws. The grating scale is adapted to a reading head, which is fixedly installed on the top surface of the support platform by screws. The grating scale is used to detect the rotation angle of the tray assembly in conjunction with the reading head.

[0009] Preferably, a geared disc is fixedly mounted on the circumferential surface of the annular mounting base by integral machining. The geared disc is used to cooperate with the gear in the drive mechanism for transmission, so that the drive mechanism can drive the mounting component to rotate, and the mounting component drives the tray assembly to rotate.

[0010] Preferably, the inner wall of the annular mounting base is fixedly connected to a connector by welding. The connector is a plate-shaped structure made of stainless steel. The connector is used to fix the movable part of the conductive slip ring in conjunction with the connecting rod, so that the movable part of the conductive slip ring can rotate together with the mounting assembly.

[0011] Preferably, the conductive component includes a conductive slip ring, which is fixedly installed on the top surface of the support platform by screws. The conductive slip ring is located at the axis of the annular turntable used for mounting the component. A connecting rod is fixedly connected to the side wall of the conductive slip ring by welding. The connecting rod is a rod-shaped structure made of stainless steel and is used to connect the connector. The end of the connecting rod away from the conductive slip ring is fixedly connected to the connector by bolts and nuts. The conductive slip ring is used to supply power to the heating wire and includes a movable part and a fixed part. The movable part is fixedly connected to the connecting rod, and the fixed part is fixedly connected to the support platform. The conductive slip ring is electrically connected to the control unit of the infrared spectrometer.

[0012] Preferably, the pallet body is fixedly installed on the top surface of the annular mounting base by screws. The top surface of the pallet body is fixedly provided with an annular barrier by integral processing. The annular barrier is used to prevent the conductive printing ink on the top from flowing outward under the action of centrifugal force when the pallet body rotates. A rubber ring is fixedly connected to the top surface of the pallet body by adhesive. The rubber ring is used to dampen the edges of the pallet body and avoid high-frequency vibration from affecting the installation stability of the pallet body. The principle is to convert the vibration energy into heat energy through the internal friction of the pallet body material.

[0013] Preferably, a heating wire is fixedly connected to the bottom surface of the tray body by welding. The heating wire is electrically connected to a conductive slip ring via a flexible circuit. A piezoelectric ceramic sheet is fixedly connected to the center of the bottom surface of the tray body by welding. The flexible circuit of the piezoelectric ceramic sheet is electrically connected to the conductive slip ring. A temperature sensor is fixedly connected to the bottom surface of the tray body by welding. The piezoelectric ceramic sheet can cause the tray body to generate high-frequency vibration. The piezoelectric ceramic sheet converts the electrical signal into mechanical vibration through the inverse piezoelectric effect, and then transmits it to the tray body through mechanical coupling, causing it to vibrate accordingly. The heating wire is used to heat the heating wire, which in turn heats the conductive printing ink. The temperature sensor is used to detect the temperature of the tray body. The temperature sensor is a surface-mount temperature sensor with a thermistor.

[0014] Preferably, the drive mechanism includes an AC motor and a reducer. Both the AC motor and the reducer are fixedly installed on the top surface of the support platform by screws. The output end of the AC motor and the input end of the reducer are connected by a spline connection. The output end of the reducer is fixedly connected with a gear, which meshes with a gear plate.

[0015] A detection method for a detection device used for analyzing the composition of conductive printing inks includes the following steps; S1; Apply conductive printing ink to the top surface of the tray body using a scraper or syringe. Start the AC motor and drive the gear to rotate through the reducer. The gear drives the mounting component and its rear component to rotate through the gear plate. The mounting component drives the tray component above to rotate. The rotation of the tray component drives the conductive printing ink to rotate and generates centrifugal force. Under the action of centrifugal force, the conductive printing ink will be forced to flow, causing the uneven surface caused by improper application to flow faster. S2; During the rotation of the tray assembly, the tray body can be heated by the heating wire, which in turn heats the conductive printing ink. The temperature is controlled at 80-100 degrees Celsius to make the conductive printing ink in its most fluid state. At this time, the piezoelectric ceramic sheet is activated to make the tray body vibrate at a high frequency. The high-frequency vibration of the tray body can apply high-frequency vibration to the conductive printing ink. The high-frequency vibration can break up the local accumulation structure of the conductive printing ink caused by dust, impurities or uneven application, further increasing the fluidity of the conductive printing ink. By accelerating the flow of the conductive printing ink, it is made to spread quickly and evenly on the top surface of the tray body. S3; After the conductive printing ink is spread evenly on the surface of the tray body, the detection unit of the infrared spectrometer is activated to detect the conductive printing ink. The infrared light source emits infrared light, which is modulated into interference light by the interferometer. The interference light passes through the reflective optical component and is uniformly irradiated onto the surface of the conductive printing ink. The conductive printing ink selectively absorbs infrared light of a specific wavelength, and the remaining light undergoes diffuse reflection. The reflective optical component collects the diffusely reflected interference light and transmits it to the detector. The detector converts the light signal into an electrical signal, which is then Fourier transformed by the signal processing module to output the ink characteristic spectrum, thereby realizing component analysis.

[0016] This application first applies conductive printing ink to the top surface of the tray body using a scraper or syringe. An AC motor is then started, driving a gearbox to rotate. The gearbox, through a gear plate, drives the mounting assembly and its rear components to rotate. The mounting assembly then rotates the tray assembly above it. This rotation of the tray assembly causes the conductive printing ink to rotate, generating centrifugal force. Under this centrifugal force, the conductive printing ink flows, accelerating the flow of ink from uneven surfaces caused by improper application. During the rotation of the tray assembly, a heating wire heats the tray body, thereby heating the conductive printing ink. The temperature is controlled at 80-100 degrees Celsius, maximizing the ink's fluidity. At this point, a piezoelectric ceramic plate is activated, causing the tray body to vibrate at high frequency. This high-frequency vibration of the tray body breaks up localized accumulations of ink caused by dust, impurities, or uneven application, further increasing the ink's fluidity. By accelerating the flow of the conductive printing ink, it is quickly and evenly spread across the top surface of the tray body. This method does not rely on the researcher's technical expertise; the worker only needs to apply a measured amount of conductive printing ink to the tray body surface. Subsequent leveling is handled by the tray assembly, making it convenient and quick.

[0017] During the process of conducting spectral analysis on conductive printing inks, the inventors discovered that the test results for the same conductive printing ink varied at different time periods. However, after applying a tray body 401 capable of high-frequency vibration and rotation to the detection of conductive printing inks in this application, it was found that the test results for the same conductive printing ink at different time periods showed only slight differences. Through long-term experiments, it was found that high-frequency vibration, while increasing fluidity, can cause impurities (dust) adhering to the surface of the conductive printing ink to settle to the bottom of the conductive printing ink or mix into the interior of the conductive printing ink under vibration. This prevents impurities from floating on the surface of the conductive printing ink and participating in spectral analysis, thereby avoiding the influence of impurities on spectral analysis. This makes the test results of this application less susceptible to interference from external impurities, resulting in greater stability and accuracy.

[0018] In this invention, by enabling the tray body to rotate, vibrate, and heat, this application has three methods to increase the fluidity of conductive printing ink. Even if the structure required by one of the methods is damaged, the other two methods can still increase the fluidity of the conductive printing ink to a certain extent, which can assist in the component analysis of the conductive printing ink and make this application have high stability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the connection state between the support platform and the installation mechanism of the overall structure of the present invention; Figure 3 This is a schematic diagram of the support platform and installation mechanism of the overall structure of the present invention in a separated state; Figure 4 This is a schematic diagram of the installation mechanism and the tray assembly of the overall structure of the present invention in a separated state; Figure 5 This is an exploded view of the installation mechanism of the overall structure of the present invention; Figure 6 This is a schematic diagram of the mounting components and drive mechanism of the overall structure of the present invention; Figure 7 This is a bottom view of the tray assembly of the overall structure of the present invention; Figure 8 This is a half-sectional view of the overall structure tray assembly of the present invention.

[0020] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: 100, Infrared spectrometer; 101, Detection chamber; 200, Support platform; 300, Mounting mechanism; 310, Annular turntable; 320, Mounting assembly; 321, Annular mounting base; 322, Grating scale; 323, Gear plate; 324, Connector; 330, Conductive component; 331, Conductive slip ring; 332, Connecting rod; 340, Reading head; 400, Tray assembly; 401, Tray body; 402, Annular barrier; 403, Rubber ring; 404, Piezoelectric ceramic sheet; 405, Heating wire; 406, Temperature sensor; 500, Drive mechanism; 501, AC motor; 502, Reducer; 503, Gear. Detailed Implementation

[0021] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0022] Example 1 Currently, when using infrared spectrometers to analyze the composition of conductive printing inks, researchers have found that uneven pressure, inconsistent speed, or impurities (dust) on the surface of the coating tools when applying the ink with a scraper or coating rod can lead to scratches, localized build-up, or uneven thickness in the coating. Therefore, the application of conductive printing inks to the infrared spectrometer detection end is highly dependent on the operator's application technique. If researchers with inexperienced skills use infrared spectrometers to detect conductive printing inks, it may lead to experimental failure, requiring secondary or even multiple tests, thus affecting the detection efficiency.

[0023] To address the problems existing in the prior art, the present invention provides a technical solution; like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the detection device for analyzing the composition of conductive printing ink includes an infrared spectrometer 100, a mounting mechanism 300, a tray assembly 400, and a drive mechanism 500. The infrared spectrometer 100 is used to analyze the chemical composition of the conductive printing ink. It includes at least a detection cavity 101, a cover plate, a control unit, and a detection unit. The detection unit and control unit are both existing technologies. The control unit controls the electronic components inside the infrared spectrometer 100. A support platform 200 is bolted to the inner bottom surface of the detection cavity 101. The detection unit includes an infrared light source, a Michelson interferometer, a reflective optical component, an infrared detector, and a signal processing module. The infrared light source emits infrared light, which is modulated into interference light by the interferometer. The interference light passes through the reflective optical component and uniformly illuminates the surface of the conductive printing ink. The conductive printing ink selectively absorbs infrared light of a specific wavelength, and the remaining light undergoes diffuse reflection. The reflective optical component collects the diffusely reflected interference light and transmits it to the detector. The detector converts the optical signal into an electrical signal, which is then Fourier transformed by the signal processing module to output the ink characteristic spectrum, thus achieving composition analysis. The tray assembly 400 includes a tray body 401. The tray body 401 is in the shape of a dome, meaning it is circular with a stepped, raised center and flat sides. The tray body 401 is a thin sheet made of titanium alloy. It is used to hold conductive printing ink. The tray body 401 can vibrate at a high frequency (20kHz-50kHz). It can rotate based on a first axis. When the tray body 401 rotates, the conductive printing ink on its surface is subjected to centrifugal force. The first axis is the central axis of the tray body 401. Extending to the first axis Z1, when the tray body 401 rotates along the first axis, the conductive printing ink on its surface will flow to the outside of the tray body 401 under the influence of centrifugal force. The flowing conductive printing ink will make its uneven surface more uniform and flat. The temperature of the surface of the tray body 401 can be changed, heating the conductive printing ink to make it more fluid and easier to flatten it. The mounting mechanism 300 is used to mount the tray assembly 400, and it can detect the rotation angle of the tray assembly 400. The driving mechanism 500 is used to drive the tray assembly 400 to rotate.

[0024] like Figure 3 , Figure 4 and Figure 5 As shown, the mounting mechanism 300 includes an annular turntable 310, a mounting component 320, and a conductive component 330. The annular turntable 310 is fixedly mounted on the top surface of the support platform 200 by screws. The side of the annular turntable 310 away from the support platform 200 is fixedly connected to the mounting component 320 by a bolt and nut. The annular turntable 310 includes a movable part and a fixed part. The fixed part is fixedly connected to the support platform 200, and the movable part is fixedly connected to the mounting component 320.

[0025] like Figure 4 , Figure 5 and Figure 6 As shown, the mounting assembly 320 includes an annular mounting base 321, which is an annular structure made of stainless steel. The annular mounting base 321 is fixedly connected to the side of the annular turntable 310 away from the support platform 200 by bolts and nuts. An annular groove is formed on the outer circumferential surface of the annular mounting base 321. A grating scale 322 is fixedly installed in the annular groove by screws. The grating scale 322 is adapted to a reading head 340. The reading head 340 is fixedly installed on the top surface of the support platform 200 by screws. The grating scale 322 is used to cooperate with the reading head 340 to detect the rotation angle of the tray assembly 400.

[0026] like Figure 4 , Figure 5 and Figure 6 As shown, a gear plate 323 is fixedly mounted on the circumferential surface of the annular mounting base 321 by integral machining. The gear plate 323 is used to cooperate with the gear 503 in the drive mechanism 500 for transmission, so that the drive mechanism 500 can drive the mounting component 320 to rotate, and the mounting component 320 drives the tray assembly 400 to rotate.

[0027] like Figure 4 , Figure 5 and Figure 6 As shown, the inner wall of the annular mounting base 321 is fixedly connected to the connector 324 by welding. The connector 324 is a plate structure made of stainless steel. The connector 324 is used to cooperate with the connecting rod 332 to fix the movable part of the conductive slip ring 331, so that the movable part of the conductive slip ring 331 can rotate together with the mounting assembly 320.

[0028] like Figure 4 and Figure 5 As shown, the conductive component 330 includes a conductive slip ring 331, which is fixedly mounted on the top surface of the support platform 200 by screws. The conductive slip ring 331 is located at the axis of the annular turntable 310 used to mount the component 320. A connecting rod 332 is fixedly connected to the side wall of the conductive slip ring 331 by welding. The connecting rod 332 is a rod-shaped structure made of stainless steel and is used to connect the connector 324. The end of the connecting rod 332 away from the conductive slip ring 331 is fixedly connected to the connector 324 by bolts and nuts. The conductive slip ring 331 is used to supply power to the heating wire 405 and the heating wire 405. It includes a movable part and a fixed part. The movable part is fixedly connected to the connecting rod 332, and the fixed part is fixedly connected to the support platform 200. The conductive slip ring 331 is electrically connected to the control unit of the infrared spectrometer 100.

[0029] like Figure 4 , Figure 7 and Figure 8As shown, the tray body 401 is fixedly installed on the top surface of the annular mounting base 321 by screws. The top surface of the tray body 401 is fixedly provided with an annular barrier 402 by integral processing. The annular barrier 402 is used to prevent the conductive printing ink on the top from flowing outward under the action of centrifugal force when the tray body 401 rotates. A rubber ring 403 is fixedly connected to the top surface of the tray body 401 by adhesive. The rubber ring 403 is used to dampen the edges of the tray body 401 and avoid high-frequency vibration from affecting the installation stability of the tray body 401. The principle is to convert the vibration energy into heat energy through the internal friction of the material inside the tray body 401.

[0030] like Figure 4 , Figure 7 and Figure 8 As shown, a heating wire 405 is fixedly connected to the bottom surface of the tray body 401 by welding. The heating wire 405 is electrically connected to the conductive slip ring 331 through a flexible circuit. A piezoelectric ceramic sheet 404 is fixedly connected to the axis of the bottom surface of the tray body 401 by welding. The flexible circuit of the piezoelectric ceramic sheet 404 is electrically connected to the conductive slip ring 331. A temperature sensor 406 is fixedly connected to the bottom surface of the tray body 401 by welding. The piezoelectric ceramic sheet 404 can cause the tray body 401 to generate high-frequency vibration. The piezoelectric ceramic sheet 404 converts the electrical signal into mechanical vibration through the inverse piezoelectric effect, and then transmits it to the tray body 401 through mechanical coupling, so that it follows the vibration. The heating wire 405 is used to heat the heating wire 405, thereby heating the conductive printing ink. The temperature sensor 406 is used to detect the temperature of the tray body 401. The temperature sensor 406 is a surface-mount temperature sensor with a thermistor.

[0031] like Figure 2 , Figure 3 and Figure 6 As shown, the drive mechanism 500 includes an AC motor 501 and a reducer 502. Both the AC motor 501 and the reducer 502 are fixedly installed on the top surface of the support platform 200 by screws. The output end of the AC motor 501 and the input end of the reducer 502 are connected by a spline connection. The output end of the reducer 502 is fixedly connected to a gear 503, which meshes with the gear disc 323.

[0032] A detection method for a detection device used for analyzing the composition of conductive printing inks includes the following steps; S1; Apply conductive printing ink to the top surface of the tray body 401 using a scraper or syringe. Start the AC motor 501, which drives the gear 503 to rotate via the reducer 502. The gear 503 drives the mounting component 320 and its rear components to rotate via the gear plate 323. The mounting component 320 drives the upper tray component 400 to rotate. The rotation of the tray component 400 causes the conductive printing ink to rotate and generate centrifugal force. Under the action of centrifugal force, the conductive printing ink will flow under force, accelerating the flow of the uneven surface caused by improper application. S2; During the rotation of the tray assembly 400, the tray body 401 can be heated by the heating wire 405, thereby heating the conductive printing ink. The temperature is controlled at 80-100 degrees to make the conductive printing ink in the state of highest fluidity. At this time, the piezoelectric ceramic sheet 404 is activated to make the tray body 401 generate high-frequency vibration. The high-frequency vibration of the tray body 401 can apply high-frequency vibration to the conductive printing ink. The high-frequency vibration can break up the local accumulation structure of the conductive printing ink caused by dust, impurities or uneven coating, further increasing the fluidity of the conductive printing ink. By accelerating the flow of the conductive printing ink, it is made to spread quickly and evenly on the top surface of the tray body 401. S3; After the conductive printing ink is spread evenly on the surface of the tray body 401, the detection unit of the infrared spectrometer 100 is activated to detect the conductive printing ink. The infrared light source emits infrared light, which is modulated into interference light by the interferometer. The interference light passes through the reflective optical component and is uniformly irradiated onto the surface of the conductive printing ink. The conductive printing ink selectively absorbs infrared light of a specific wavelength, and the remaining light undergoes diffuse reflection. The reflective optical component collects the diffusely reflected interference light and transmits it to the detector. The detector converts the light signal into an electrical signal, which is then Fourier transformed by the signal processing module to output the ink characteristic spectrum, thereby realizing component analysis.

[0033] This application first applies conductive printing ink to the top surface of the tray body 401 using a scraper or syringe. The AC motor 501 is then started, driving the gear 503 via the reducer 502. The gear 503, through the gear disc 323, drives the mounting assembly 320 and its rear components to rotate. The mounting assembly 320 then drives the upper tray assembly 400 to rotate. This rotation of the tray assembly 400 causes the conductive printing ink to rotate, generating centrifugal force. Under this centrifugal force, the conductive printing ink flows, accelerating the flow on the uneven surface caused by improper application. During the rotation of the tray assembly 400, the tray body 401 can be heated via the heating wire 405, thereby heating the conductive printing ink and controlling the temperature at 80°C. -100 degrees Celsius brings the conductive printing ink to its highest fluidity. At this temperature, the piezoelectric ceramic sheet 404 is activated, causing the tray body 401 to vibrate at high frequency. This high-frequency vibration of the tray body 401 applies high-frequency vibration to the conductive printing ink, breaking up any localized accumulations caused by dust, impurities, or uneven application. This further increases the fluidity of the conductive printing ink, allowing it to spread quickly and evenly on the top surface of the tray body 401. This method does not require technical expertise from researchers; workers only need to apply a measured amount of conductive printing ink to the surface of the tray body 401. Subsequent leveling is then performed by the tray assembly 400, making the process convenient and quick.

[0034] This application heats the conductive printing ink by setting a tray body 401 and sets a piezoelectric ceramic sheet 404 to make the tray body 401 vibrate at high frequency. While increasing the fluidity, it can also cause impurities (dust) attached to the surface of the conductive printing ink to settle to the bottom of the conductive printing ink or mix into the interior of the conductive printing ink under vibration. This prevents impurities from floating on the surface of the conductive printing ink and participating in spectral detection, thereby avoiding the influence of impurities on spectral detection. This makes the detection results of this application less susceptible to interference from external impurities, and more stable and accurate.

[0035] If this application simply rotates the tray body 401 to force the conductive printing ink to flow faster, it will be found that the surface of the conductive printing ink will produce spiral grooves due to centrifugal force, making the overall structure of the conductive printing ink uneven. If the tray body 401 is simply subjected to high-frequency vibration, it will be found that the conductive printing ink on the tray body 401 with larger protrusions (depressions) (due to improper application) is difficult to flow to the depressions. The reason is that the energy transmitted by high-frequency vibration is limited, and it is difficult to quickly affect the results of conductive printing ink. It requires a long time of interference, which affects the experimental efficiency. However, under the action of the high-frequency vibration and rotation of the tray body 401 (in conjunction with heating the conductive printing ink to keep it in the highest flow state), the spiral grooves of the conductive printing ink caused by centrifugal force will flow and fill quickly, making the surface of the conductive printing ink smooth. Rotation affects the large protrusions or depressions of the conductive printing ink, and high-frequency vibration affects the small protrusions or depressions of the conductive printing ink. The combination of these factors can make the conductive printing ink smooth quickly.

[0036] During the spectral detection of conductive printing ink, the inventors discovered that the detection results of the same conductive printing ink varied at different time periods. However, after applying a tray body 401 capable of high-frequency vibration and rotation to the detection of conductive printing ink, it was found that the detection results of the same conductive printing ink at different time periods showed only slight differences. After long-term experiments, it was found that the reason for the difference in detection results was that the conductive printing ink could combine with dust and impurities in the environment. These impurities would adhere to the surface of the conductive printing ink and participate in the spectral detection. The tray body 401 of this application, while increasing fluidity through high-frequency vibration, can also cause the impurities (dust) attached to the surface of the conductive printing ink to settle to the bottom of the conductive printing ink or mix into the interior of the conductive printing ink under the action of vibration. This prevents impurities from floating on the surface of the conductive printing ink and participating in the spectral detection, thereby avoiding the influence of impurities on the spectral detection. This makes the detection results of this application less susceptible to interference from external impurities, and more stable and accurate.

[0037] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A detection device for analyzing the composition of conductive printing inks, characterized in that, include; An infrared spectrometer (100) is used to analyze the chemical composition of conductive printing ink. It is provided with a detection cavity (101) and a detection unit. A support stage (200) is fixedly provided on the inner bottom surface of the detection cavity (101). The detection unit includes an infrared light source, a Michelson interferometer, a reflective optical component, an infrared detector, and a signal processing module. A tray assembly (400) includes a tray body (401) which is in the shape of a dome and is used to carry conductive printing ink. The tray body (401) is capable of high-frequency vibration and can rotate on its own axis. When the tray body (401) rotates, the conductive printing ink on its surface is subjected to centrifugal force, and the temperature of the surface of the tray body (401) can be changed. Mounting mechanism (300) for mounting pallet assembly (400) and capable of detecting the angle of rotation of pallet assembly (400); A drive mechanism (500) is used to drive the tray assembly (400) to rotate.

2. The detection device for analyzing the composition of conductive printing ink as described in claim 1, characterized in that, The mounting mechanism (300) includes an annular turntable (310), a mounting component (320), and a conductive component (330). The annular turntable (310) is fixedly mounted on the top surface of the support platform (200) by screws.

3. The detection device for analyzing the composition of conductive printing ink as described in claim 2, characterized in that, The mounting assembly (320) includes an annular mounting base (321), which is fixedly connected to the side of the annular turntable (310) away from the support platform (200). An annular groove is provided on the outer circumferential surface of the annular mounting base (321), and a grating scale (322) is fixedly installed in the annular groove. The grating scale (322) is adapted to a reading head (340), which is fixedly installed on the top surface of the support platform (200).

4. The detection device for analyzing the composition of conductive printing ink as described in claim 3, characterized in that, A toothed disc (323) is fixedly provided on the circumferential surface of the annular mounting base (321).

5. The detection device for analyzing the composition of conductive printing ink as described in claim 4, characterized in that, The inner wall of the annular mounting base (321) is fixedly connected to a connector (324).

6. The detection device for analyzing the composition of conductive printing ink as described in claim 5, characterized in that, The conductive component (330) includes a conductive slip ring (331), which is fixedly installed on the top surface of the support platform (200). The conductive slip ring (331) is located at the axis of the annular turntable (310) used to install the component (320). A connecting rod (332) is fixedly connected to the side wall of the conductive slip ring (331), and the end of the connecting rod (332) away from the conductive slip ring (331) is fixedly connected to the connector (324).

7. The detection device for analyzing the composition of conductive printing ink as described in claim 6, characterized in that, The pallet body (401) is fixedly installed on the top surface of the annular mounting base (321), and an annular barrier (402) is fixedly provided on the top surface of the pallet body (401). A rubber ring (403) is fixedly connected to the top surface of the pallet body (401).

8. The detection device for analyzing the composition of conductive printing ink as described in claim 7, characterized in that, A heating wire (405) is fixedly connected to the bottom surface of the tray body (401) by welding. The heating wire (405) is electrically connected to a conductive slip ring (331) through a flexible circuit. A piezoelectric ceramic sheet (404) is fixedly connected to the center of the bottom surface of the tray body (401) by welding. The flexible circuit of the piezoelectric ceramic sheet (404) is electrically connected to the conductive slip ring (331). A temperature sensor (406) is fixedly connected to the bottom surface of the tray body (401) by welding.

9. The detection device for analyzing the composition of conductive printing ink as described in claim 8, characterized in that, The drive mechanism (500) includes an AC motor (501) and a reducer (502). The AC motor (501) and the reducer (502) are both fixedly installed on the top surface of the support platform (200). The output end of the AC motor (501) is connected to the input end of the reducer (502). The output end of the reducer (502) is fixedly connected to a gear (503), which meshes with a gear disc (323).

10. A detection method for a detection device for analyzing the composition of conductive printing ink, comprising the following steps, using the detection device for analyzing the composition of conductive printing ink as described in claims 1-9; S1； Open the cover of the infrared spectrometer (100), apply conductive printing ink to the top surface of the tray body (401) using a scraper or syringe, close the cover of the infrared spectrometer (100) and start the AC motor (501). The gear (503) is driven to rotate through the reducer (502). The gear (503) drives the mounting component (320) and its rear components to rotate through the gear plate (323). The mounting component (320) drives the tray component (400) above to rotate. The rotation of the tray component (400) causes the conductive printing ink to rotate and generate centrifugal force. Under the action of centrifugal force, the conductive printing ink will be forced to flow, causing the uneven surface caused by improper application to flow faster. S2; During the rotation of the tray assembly (400), the tray body (401) can be heated by the heating wire (405), thereby heating the conductive printing ink. The temperature is controlled at 80-100 degrees to make the conductive printing ink in the state of highest fluidity. At this time, the piezoelectric ceramic sheet (404) is activated to make the tray body (401) generate high-frequency vibration. The high-frequency vibrating tray body (401) can apply high-frequency vibration to the conductive printing ink. The high-frequency vibration can break up the local accumulation structure of the conductive printing ink caused by dust, impurities or uneven coating, further increasing the fluidity of the conductive printing ink. By accelerating the flow of the conductive printing ink, it is made to spread quickly and evenly on the top surface of the tray body (401). S3; After the conductive printing ink is spread evenly on the surface of the tray body (401), the detection unit of the infrared spectrometer (100) is activated to detect the conductive printing ink. The infrared light source emits infrared light, which is modulated into interference light by the interferometer. The interference light passes through the reflective optical component and is uniformly irradiated onto the surface of the conductive printing ink. The conductive printing ink selectively absorbs infrared light of a specific wavelength, and the remaining light undergoes diffuse reflection. The reflective optical component collects the diffusely reflected interference light and transmits it to the detector. The detector converts the light signal into an electrical signal, which is then Fourier transformed by the signal processing module to output the ink characteristic spectrum, thereby realizing component analysis.

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