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CN-121978048-A - Detection device and detection method for component analysis of conductive printing ink

CN121978048ACN 121978048 ACN121978048 ACN 121978048ACN-121978048-A

Abstract

The application provides a detection device and a detection method for component analysis of conductive printing ink, which relate to the technical field of conductive printing ink detection and comprise an infrared spectrometer, wherein the infrared spectrometer is used for analyzing chemical components of the conductive printing ink, a detection cavity and a detection unit are arranged on the inner bottom surface of the detection cavity, a supporting table is fixedly arranged on the inner bottom surface of the detection cavity, the conductive printing ink is driven by an alternating current motor to rotate, so that the conductive printing ink is influenced by centrifugal force and can flow under stress, a tray body can be heated by a heating wire in the rotation process of the tray assembly, the conductive printing ink is in the highest fluidity state, a piezoelectric ceramic sheet is started to apply high-frequency vibration to the conductive printing ink, the fluidity of the conductive printing ink can be further increased by the high-frequency vibration, a worker only needs to smear quantitative conductive printing ink on the surface of the tray body, and the subsequent leveling operation is realized by the tray assembly, so that the method is convenient and quick.

Inventors

  • CHEN HAIPENG
  • ZHANG JINBI
  • ZHANG ZHILONG

Assignees

  • 惠州市华士德化工有限公司

Dates

Publication Date
20260505
Application Date
20260126

Claims (10)

  1. 1. A detection device for analysis of the composition of a conductive printing ink, comprising; the infrared spectrometer (100) is used for analyzing chemical components of the conductive printing ink and is provided with a detection cavity (101) and a detection unit, wherein a supporting table (200) is fixedly arranged on the inner bottom surface of the detection cavity (101), and the detection unit comprises an infrared light source, a Michelson interferometer, a reflection optical assembly, an infrared detector and a signal processing module; The tray assembly (400) comprises a tray body (401), wherein the tray body (401) is in a circular cover shape, the tray body (401) is used for bearing conductive printing ink, the tray body (401) can vibrate at high frequency, the tray body (401) can rotate on the basis of a first axis, the conductive printing ink on the surface of the tray body (401) can be subjected to centrifugal force when the tray body (401) rotates, and the temperature of the surface of the tray body (401) can be changed; A mounting mechanism (300) for mounting a tray assembly (400) capable of detecting an angle at which the tray assembly (400) rotates; and the driving mechanism (500) is used for driving the tray assembly (400) to rotate.
  2. 2. The detecting device for conductive printing ink composition analysis according to claim 1, wherein the mounting mechanism (300) comprises an annular turntable (310), a mounting assembly (320) and a conductive assembly (330), and the annular turntable (310) is fixedly mounted on the top surface of the support table (200) by screws.
  3. 3. The detection device for component analysis of conductive printing ink according to claim 2, wherein the mounting assembly (320) comprises an annular mounting seat (321), the annular mounting seat (321) is fixedly connected with one side of the annular turntable (310) away from the supporting table (200), an annular groove is formed in the outer circumferential surface of the annular mounting seat (321), a grating scale (322) is fixedly mounted in the annular groove, the grating scale (322) is adapted with a reading head (340), and the reading head (340) is fixedly mounted on the top surface of the supporting table (200).
  4. 4. A detection device for analysis of the composition of conductive printing ink according to claim 3, characterized in that the circumferential surface of the annular mounting (321) is fixedly provided with a toothed disc (323).
  5. 5. The detection device for analysis of components of conductive printing ink according to claim 4, wherein the inner wall of the annular mounting base (321) is fixedly connected with a connecting piece (324).
  6. 6. The detection device for component analysis of conductive printing ink according to claim 5, wherein the conductive component (330) comprises a conductive slip ring (331), the conductive slip ring (331) is fixedly mounted on the top surface of the support table (200), the conductive slip ring (331) is located at the axial center of the annular turntable (310) for mounting the component (320), a connecting rod (332) is fixedly connected to the side wall of the conductive slip ring (331), and one end, far away from the conductive slip ring (331), of the connecting rod (332) is fixedly connected with the connecting piece (324).
  7. 7. The detection device for component analysis of conductive printing ink according to claim 6, wherein the tray body (401) is fixedly mounted on the top surface of the annular mounting seat (321), an annular blocking member (402) is fixedly arranged on the top surface of the tray body (401), and a rubber ring (403) is fixedly connected to the top surface of the tray body (401).
  8. 8. The detection device for component analysis of conductive printing ink according to claim 7, wherein the bottom surface of the tray body (401) is fixedly connected with a heating wire (405) in a welding manner, the heating wire (405) is electrically connected with the conductive slip ring (331) through a flexible circuit, the shaft center of the bottom surface of the tray body (401) is fixedly connected with a piezoelectric ceramic plate (404) in a welding manner, the flexible circuit of the piezoelectric ceramic plate (404) is electrically connected with the conductive slip ring (331), and the bottom surface of the tray body (401) is fixedly connected with a temperature sensor (406) in a welding manner.
  9. 9. The detection device for component analysis of conductive printing ink according to claim 8, wherein the driving mechanism (500) comprises an alternating current motor (501) and a speed reducer (502), the alternating current motor (501) and the speed reducer (502) are fixedly installed on the top surface of the supporting table (200), the output end of the alternating current motor (501) is connected with the input end of the speed reducer (502) in a matched mode, the output end of the speed reducer (502) is fixedly connected with a gear (503), and the gear (503) is meshed and clamped with the fluted disc (323).
  10. 10. A detection method for a detection device for conductive printing ink composition analysis, employing the detection device for conductive printing ink composition analysis according to claims 1 to 9, comprising the steps of; The method comprises the steps of S1, opening a cover plate of an infrared spectrometer (100), smearing conductive printing ink on the top surface of a tray body (401) through a scraper or an injector, covering the cover plate of the infrared spectrometer (100) and starting an alternating current motor (501) to drive a gear (503) to rotate through a speed reducer (502), driving a mounting assembly (320) and a rear assembly to rotate through a fluted disc (323), driving the tray assembly (400) above to rotate by the mounting assembly (320), driving the conductive printing ink to rotate and generating centrifugal force, and enabling the conductive printing ink to flow under the action of the centrifugal force, so that uneven surfaces are accelerated due to uneven smearing; S2, heating the tray body (401) through a heating wire (405) in the rotating process of the tray assembly (400), further heating the conductive printing ink, controlling the temperature to be 80-100 ℃ so that the conductive printing ink is in a state with highest fluidity, starting a piezoelectric ceramic plate (404) at the moment to enable the tray body (401) to generate high-frequency vibration, enabling the tray body (401) which is in high-frequency vibration to apply the high-frequency vibration to the conductive printing ink, enabling the high-frequency vibration to scatter local accumulation structures of the conductive printing ink caused by dust, impurities or uneven smearing, further increasing the fluidity of the conductive printing ink, and enabling the conductive printing ink to be quickly and uniformly spread on the top surface of the tray body (401) in a mode of accelerating the flow of the conductive printing ink; S3, after the conductive printing ink is tiled on the surface of the tray body (401), a detection unit of an infrared spectrometer (100) is started to detect the conductive printing ink, an infrared light source emits infrared light, the infrared light is modulated into interference light through an interferometer, the interference light uniformly irradiates the surface of the conductive printing ink, the conductive printing ink selectively absorbs infrared light with specific wavelength, the residual light is diffusely reflected, the diffuse reflection interference light is collected by the reflection optical assembly and transmitted to a detector, the detector converts an optical signal into an electric signal, and the electric signal is Fourier transformed through a signal processing module to output an ink characteristic spectrum, so that component analysis is realized.

Description

Detection device and detection method for component analysis of conductive printing ink Technical Field The invention belongs to the technical field of conductive printing ink detection, and particularly relates to a detection device and a detection method for component analysis of conductive printing ink. Background The conductive printing ink is used as a core material in the emerging fields of flexible electronics, internet of things, printed electronics and the like, and the composition (such as conductive filler, adhesive, solvent, functional auxiliary agent and the like) directly determines the conductivity, adhesive force, printing adaptability and long-term stability of the ink. Along with the development of electronic equipment to miniaturization, flexibility and high performance, strict requirements are put on accurate control of components of conductive printing ink, and component analysis becomes a key link of ink research and development optimization, production quality control and application reliability evaluation. At present, the component analysis of the conductive printing ink mainly depends on a spectrum detection method (infrared spectrum and Raman spectrum), a chromatograph detection method (gas chromatograph and liquid chromatograph), a mass spectrum detection method, an element analysis method and the like, wherein a detection device using the spectrum detection method comprises an infrared spectrometer, the infrared spectrometer comprises a plurality of detection modes such as transmission, diffuse reflection, total reflection and the like, the paste of the conductive printing ink is in a viscous liquid state, contains a large amount of conductive particles such as silver powder, carbon system and the like, is completely opaque and cannot transmit light, therefore, the conductive printing ink is usually subjected to diffuse reflection detection by adopting a Fourier transform infrared spectrometer, the surface of the conductive printing ink is required to be ensured to be smooth when the conductive printing ink is detected by the infrared spectrometer (otherwise, infrared light reflection/scattering disorder is caused, and partial light cannot effectively act on a sample), the problems that the spectrum signal is weakened, the peak shape is deformed, the reflection path of infrared light is disordered on the concave-convex surface, the light in a part of area is scattered excessively, the light in a part of area is blocked, the spectrum peak shape, the absorption intensity of the same batch of samples are fluctuated, and the repeatability is poor are caused, although the existing conductive printing ink belongs to slurry and semi-fluid, the existing conductive printing ink naturally flows smoothly under the action of gravity when being detected by using an infrared spectrometer, the problem of uneven surface is avoided, and when the infrared spectrometer is used for carrying out component analysis on the conductive printing ink, workers find that if the conductive printing ink is coated by using a scraper and a coating rod by a researcher, the strength is uneven, the speed is negligent and slow, or the surface of a coating tool has impurities (dust), the problems of scratch, local accumulation or uneven thickness are caused, therefore, the conductive printing ink is smeared on the detection end of the infrared spectrometer by relying on the smearing technology of workers, if the technology is not skillful, researchers use the infrared spectrometer to detect the conductive printing ink, the experiment can be failed, the secondary detection and even the repeated detection are needed, and the detection efficiency is affected. Disclosure of Invention In order to solve the above technical problems, the present invention provides a detection device and a detection method for component analysis of conductive printing ink, so as to solve the above problems. A detection device for conductive printing ink composition analysis, comprising. The infrared spectrometer is used for analyzing chemical components of the conductive printing ink, the infrared spectrometer is at least provided with a detection cavity, a control unit and a detection unit, the detection unit is in the prior art, the control unit is used for controlling electronic devices in the infrared spectrometer, a supporting table is fixedly arranged on the inner bottom surface of the detection cavity through bolts, the detection unit comprises an infrared light source, a Michelson interferometer, a reflection optical assembly, an infrared detector and a signal processing module, the infrared light source emits infrared light, the infrared light is modulated into interference light through the interferometer, the interference light uniformly irradiates the surface of the conductive printing ink through the reflection optical assembly, the conductive printing ink selectively absorbs infrared light with specific wavelength, the residual