CN116690992A - Aerosol printing feedback adjusting device and method based on image processing - Google Patents

Aerosol printing feedback adjusting device and method based on image processing Download PDF

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Publication number
CN116690992A
CN116690992A CN202310625707.0A CN202310625707A CN116690992A CN 116690992 A CN116690992 A CN 116690992A CN 202310625707 A CN202310625707 A CN 202310625707A CN 116690992 A CN116690992 A CN 116690992A
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China
Prior art keywords
aerosol
printing
line
image
module
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CN202310625707.0A
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Chinese (zh)
Inventor
刘颖杰
张远明
宋时雨
袁顺腾
王子文
朱涛
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Linyi University
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Linyi University
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Priority to CN202310625707.0A priority Critical patent/CN116690992A/en
Publication of CN116690992A publication Critical patent/CN116690992A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

The invention provides an aerosol printing feedback regulating device and method based on image processing, wherein the regulating device comprises an aerosol printer, a line solidifying module, an image real-time acquisition module, an image processing module and a data feedback regulating module, wherein the aerosol printer is used for realizing substrate printing, the line solidifying module is used for realizing the solidification of printed lines, the image real-time acquisition module is used for realizing photographing of the printed lines and transmitting pictures to the image processing module, the image processing module is used for realizing picture datamation processing and transmitting line width data obtained by processing to the data feedback regulating module, and the data feedback regulating module is used for realizing real-time regulation of aerosol printing particle flow in an aerosol spray head. By utilizing the adjusting device and the method, the aerosol particle flow in the aerosol spray head can be adjusted in real time, so that the real-time adjustment of the width of the printed line is realized, the line printing accuracy can be improved, and the printing time and the consumable can be saved.

Description

Aerosol printing feedback adjusting device and method based on image processing
Technical Field
The invention relates to the technical field of aerosol three-dimensional printing, in particular to an aerosol printing feedback adjusting device and method based on image processing.
Background
The aerosol inkjet printing technology is a product of combining an additive manufacturing technology and a printing electronic technology, functional ink is first required to be atomized to form aerosol (at present, the aerosol is mainly generated by pneumatic atomization and ultrasonic atomization), carrier gas entrains atomized aerosol particles to form aerosol mist flow, the aerosol particles are transported to a printing spray head, and the spray head deposits the aerosol on a substrate material according to a preset pattern path. Advantages of aerosol printing technology include high resolution, wide viscosity range, etc., and the technology has been widely used in life sciences, new energy sources, intelligent sensing, photoelectric display, etc.
Aerosol inkjet printing is a complex process that is often unstable because aerosol inkjet printing is commonly used in electronic devices and requires high precision. The current printing equipment can only measure the precision of the printed line, and when the precision is not in accordance with the requirement, the printing needs to be performed again, so that the waste of time and resources is caused.
Disclosure of Invention
The invention aims to provide an aerosol printing feedback adjusting device and method based on image processing, by using the adjusting device and method, aerosol particle flow in an aerosol spray head can be adjusted in real time, so that the real-time adjustment of the width of a printing line is realized, the line printing accuracy can be improved, and the printing time and consumables can be saved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an aerosol printing feedback adjusting device based on image processing, includes aerosol printer, line solidification module, image real-time collection module, image processing module, data feedback adjusting module, the aerosol printer includes moving platform, ultrasonic atomizing device, aerosol shower nozzle, print platform, moving platform sets up in the frame of aerosol printer, the aerosol shower nozzle sets up on the moving platform, and is located print platform top, moving platform is used for driving the aerosol shower nozzle moves about and back and forth, ultrasonic atomizing device utilizes the air current pipeline to realize to the aerosol shower nozzle provides aerosol printing granule, line solidification module is used for realizing in real time the solidification of printing line in the aerosol printer printing process, image real-time collection module is used for realizing in the aerosol printer printing process in real time that prints the line take a picture and transmit the picture to image processing module, image processing module is used for realizing the picture data processing and transmitting the line width data that obtains to the data feedback adjusting module, data feedback adjusting module is used for realizing that the aerosol value is compared with the image processing range carries out real-time flow and compares the aerosol particle line width of print result to the real-time flow adjustment module according to the comparison real-time flow of aerosol particle.
Preferably, the line curing module comprises a laser light source, an optical fiber and an optical fiber head, wherein the optical fiber head is arranged at the emitting end of the optical fiber light source, the laser light source and the optical fiber are arranged at one side of the aerosol spray head, the line curing module and the aerosol spray head synchronously move, the laser light source is connected with the light source entering end of the optical fiber, and the light source projected on the printing substrate by the optical fiber head is used for sintering and curing a line formed by printing on the printing substrate by the aerosol spray head in real time.
Further, the image real-time acquisition module comprises a fixed support, an adjusting support rod and a CCD camera, wherein the fixed support is fixedly arranged on a frame of the aerosol printer, a U-shaped frame is arranged on the upper portion of the fixed support, a support tube is arranged in the U-shaped frame, a round tube base of the adjusting support rod is sleeved on the support tube, the adjusting support rod can freely rotate relative to the support tube, the U-shaped frame realizes that the adjusting support rod is limited relative to the left and right movement of the support tube, an adjusting bolt is sleeved in the support tube, a positioning press block is sleeved at the nut end of the adjusting bolt, a circle of positioning clamping groove is formed in the outer edge of the side wall of the round tube base opposite to the positioning press block, positioning clamping teeth matched with the positioning clamping groove are pressed in the corresponding positioning clamping groove through the adjusting bolt, a camera fixing base is arranged at the swinging end of the adjusting support rod, the CCD camera is arranged on the fixing base, the CCD camera is used for realizing photographing of a printing area and transmitting images to the CCD camera, and the image acquisition module can be realized, and the image acquisition module can be adjusted to a high degree.
Preferably, the adjusting support rod is a telescopic rod.
Further, the image processing module comprises a computer, MATLAB software is installed in the computer, the data feedback adjusting module comprises an operation table and an electric control flow adjusting valve, the operation table comprises a display screen, an operation control area and a single chip processor, the single chip processor is electrically connected with the display screen and the operation control area, the electric control flow adjusting valve is arranged on the air flow conveying pipeline, and the electric control flow adjusting valve is electrically connected with the single chip processor.
The invention also provides an aerosol printing feedback regulating method based on image processing, which comprises the aerosol printing feedback regulating device based on image processing, and the regulating method further comprises the following steps:
step one: starting an aerosol printer, inputting a printing path code, initializing the position of an aerosol spray head by the aerosol printer according to the printing path code, so that the aerosol spray head moves to an initial printing position, and meanwhile, preheating the aerosol spray head;
step two: according to the initial position of the aerosol spray head, the position of the CCD camera is adjusted by adjusting the placement angle and the telescopic length of the support rod, so that the CCD camera can take a picture of a printed line in real time; starting a laser light source, and adjusting the projection angle of the optical fiber head light source so that the light source projected on the printing substrate by the optical fiber head can sinter and solidify lines printed on the printing substrate by the aerosol spray head in real time;
step three: inputting the expected value range of the line into a singlechip processor by utilizing the control area;
step four: the method comprises the steps that printing is started, an aerosol spray head performs spray printing according to a program appointed path, a CCD camera performs real-time photographing to further achieve capturing of printed lines, the CCD camera transmits images to a computer in real time in the photographing process, MATLAB software in the computer performs data conversion processing on the images and transmits obtained line width values to a singlechip processor, the singlechip processor compares the obtained line width values with an input line expected value range in real time, and when the line width values are larger than the maximum value of the line expected value range, the singlechip processor adjusts an electric control flow regulating valve according to a set program to reduce the flow of the aerosol spray head so as to achieve reduction of the printing line width; when the line width value is in the line expected value range or is equal to the minimum value or the maximum value of the line expected value range, the singlechip processor does not send a regulating instruction to the electric control flow regulating valve, so that the electric control flow regulating valve continuously works according to the existing working state; when the line width value is smaller than the minimum value of the line expected value range, the singlechip processor adjusts the electric control flow regulating valve according to a set program to increase the flow of the aerosol spray head so as to realize the increase of the printing line width; MATLAB software performs image processing by adopting binarization processing mode, and specifically processesThe flow is as follows: firstly, carrying out gray scale treatment on an image, then carrying out filtering treatment on the image, solving an image consistency measure A after the filtering treatment is finished, carrying out the following comparison process on the consistency measure A, carrying out corrosion treatment on the image when A is more than 110, and carrying out image binarization treatment after the corrosion treatment is finished; when A is more than or equal to 110 and less than or equal to 120, performing edge detection treatment, performing corrosion and expansion treatment on the image after the edge detection treatment is finished, and performing image binarization treatment; when A is more than 120, performing corrosion treatment on the image, and then directly performing image binarization treatment; after binarization processing is completed on the image, line width data is acquired, and the specific acquisition processing method comprises the following steps: the lines are distributed in an XY plane coordinate system, wherein the lengths of the lines are distributed along an X axis, namely a transverse axis, the widths of the lines are distributed along a Y axis and a longitudinal axis, n valued points are removed from the lines in unit length, the line width of each valued point is calculated, then the average line width of the n valued points is taken as the line width value in unit length, and the calculation formula of the line width value in unit length is as follows:wherein L is W Line width value per unit length->For Y value out of boundary point on line at value point, < >>And Y is a Y value which is obtained by the line lower boundary point at the value point.
The beneficial effects of the invention are as follows: in the actual printing process, the real-time monitoring of the line width and the adjustment of the printing quality in the printing process are realized by utilizing the mutual coordination work of the image real-time acquisition module, the image processing module and the data feedback adjustment module, so that the line printing quality can be improved, and the printing time and the consumable can be saved; compared with the existing electron microscope observation method, the image processing module adopts an image binarization processing method to realize higher accuracy of line width measurement, thereby being convenient for realizing accurate adjustment of line printing and further ensuring printing quality; position adjustment of the CCD camera can be achieved by means of the adjusting support rods and the camera fixing base, and effective image acquisition of the CCD camera is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some preferred embodiments of the invention and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of an image real-time acquisition module;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic flow chart of the adjusting method of the present invention;
FIG. 5 is a flow chart of an image binarization process;
in the figure: 11 frames, 111 connecting plates, 12 moving platforms, 13 aerosol spray heads, 131 airflow conveying pipelines, 21 laser light sources, 22 optical fibers, 23 optical fiber heads, 31 fixed supports, 311U-shaped frames, 32 adjusting support rods, 321 round tube bases, 3211 positioning clamping grooves, 33 camera fixed bases, 34CCD cameras, 35 adjusting bolts, 351 nuts, 36 positioning pressing blocks, 361 positioning clamping teeth, 4 computers, 51 display screens, 52 control areas and 53 electric control flow adjusting valves.
Description of the embodiments
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments and fig. 1 to 5, and it is obvious that the described embodiments are only some of the preferred embodiments of the present invention, but not all embodiments. Similar modifications can be made by those skilled in the art without departing from the spirit of the invention, and therefore the invention is not to be limited by the specific embodiments disclosed below.
An aerosol printing feedback regulating device (shown in fig. 1) based on image processing comprises an aerosol printer, a line curing module, an image real-time acquisition module, an image processing module and a data feedback regulating module, wherein the aerosol printer is a product of known technology in the art, so detailed description of the detailed structure and working principle of the aerosol printer is omitted, the aerosol printer mainly comprises a moving platform 12, an ultrasonic atomizing device, an aerosol spray head 13 and a printing platform 14, the ultrasonic atomizing device is used for atomizing printing ink to generate aerosol printing particles, the printing platform 14 is used for placing a printing substrate board, the moving platform 12 is arranged on a frame 11 of the aerosol printer, the aerosol spray head 13 is arranged on the moving platform 12 and above the printing platform 14, the moving platform 12 is used for driving the aerosol spray head 13 to move left and right and back, a linear driving mechanism for realizing the left and right and back movement of the moving platform 12 is a product of known technology in the art, the ultrasonic atomizing device is omitted for describing the movement of the moving platform 12, the ultrasonic atomizing device is used for conveying the line width of the aerosol spray head 131 to the aerosol spray head 13 to realize the line real-time data acquisition module for acquiring the image data of the image processing module and the line real-time processing module for acquiring the image data of the image processing module, the line data of the image processing module is used for realizing the line real-time processing and the image processing module is used for acquiring the line data of the image processing module in real-time, the data feedback adjustment module is used for realizing real-time comparison between the line expected value range and line width data transmitted by the image processing module, and carrying out real-time adjustment on aerosol printing particle flow in the aerosol spray head according to a real-time comparison result.
Based on the above embodiment, the specific implementation manner of the line curing module is as follows: the line curing module comprises a laser light source 21, an optical fiber 22 and an optical fiber head 23, wherein the optical fiber head 23 is arranged at the light source emitting end of the optical fiber 22, the laser light source 21 and the optical fiber 22 are arranged at one side of the aerosol spray head 13, the line curing module and the aerosol spray head 13 synchronously move, in particular, the laser light source 21 is arranged on the moving platform 12, the lower end of the optical fiber 22 is fixedly connected with the aerosol spray head 13 by using a connecting plate 111, the laser light source 21 is connected with the light source entering end of the optical fiber 22, the light source projected on the printing substrate by the optical fiber head 23 is used for carrying out sintering curing on a line formed by printing on the printing substrate by the aerosol spray head 13 in real time, namely, in the actual printing process, the real-time sintering curing of the line formed by aerosol particles can be realized by using laser emitted by the optical fiber head 23, so that the subsequent image real-time acquisition module can realize photographing acquisition of the printing line.
Based on the above embodiment, the specific implementation manner of the image real-time acquisition module is as follows: the image real-time acquisition module comprises a fixed bracket 31, an adjusting support rod 32 and a CCD camera 34, wherein the fixed bracket 31 is fixedly arranged on a frame 11 of the aerosol printer and positioned on the right side of an aerosol spray head 13, a U-shaped frame 311 is arranged at the upper part of the fixed bracket 31, a support tube is arranged in the U-shaped frame 311, a round tube base 321 of the adjusting support rod 32 is sleeved on the support tube, the adjusting support rod 32 can freely rotate relative to the support tube, the U-shaped frame 311 realizes the left and right movement limit of the adjusting support rod 32 relative to the support tube, thereby ensuring the positioning accuracy of the CCD camera 34, an adjusting bolt 35 is sleeved in the support tube, a nut 351 is sleeved on the adjusting bolt 35, a positioning press block 36 is sleeved at the nut end of the adjusting bolt 35, a circle of positioning clamping groove 3211 is arranged on the outer edge of the side wall of the circular tube base 321 opposite to the positioning pressing block 36, positioning clamping teeth 361 matched with the positioning clamping groove 3211 are arranged on the side wall of the positioning pressing block 36, the positioning clamping teeth 361 are pressed in the corresponding positioning clamping grooves 3211 through adjusting bolts 35 to realize rotation limit of the adjusting support rods 32, when the placing angle of the adjusting support rods 32 needs to be adjusted again, nuts 351 are loosened, then the adjusting support rods 32 are rotated, after the adjusting support rods 32 are adjusted to a proper angle, the nuts 351 are screwed again to realize fixation of the adjusting support rods 32, a camera fixing base 33 is arranged at the swinging end of the adjusting support rods 32, the CCD camera 34 is arranged on the camera fixing base 33, and the CCD camera 34 is used for realizing photographing collection of a printing area and transmitting pictures to an image processing module, the adjusting support rod 32 can also realize the height adjustment of the CCD camera 34, specifically, the adjusting support rod 32 is a telescopic rod, and after the placement angle of the adjusting support rod 32 is adjusted, the height adjustment can be realized by utilizing the retractility of the adjusting support rod 32.
Based on the above embodiment, the specific implementation manners of the image processing module and the data feedback adjustment module are as follows: the image processing module comprises a computer 4, MATLAB software is installed in the computer 4, the MATLAB software is known data processing software, the data feedback adjusting module comprises an operation desk and an electric control flow adjusting valve 53, the operation desk comprises a display screen 51, an operation area 52 and a single chip processor, a plurality of operation keys are arranged in the operation area 52 so as to realize the setting of expected line width values by using the operation keys, the single chip processor is electrically connected with the display screen 51 and the operation area 52, the electric control flow adjusting valve 53 is arranged on an air flow conveying pipeline 131, the electric control flow adjusting valve 131 is electrically connected with the single chip processor, in practical application, the single chip processor can convey the printing line width data processed by the computer 4 to the single chip processor, the single chip processor can compare the line width data with the expected line value range in the single chip processor, and can adjust and control the working state of the flow adjusting valve 53 according to a comparison result, so that the aerosol in the aerosol spray nozzle 13 can realize the adjustment of the line width, the specific control condition can be realized, the aerosol can be controlled according to the actual condition of the actual condition, the actual condition can be controlled, and the actual quality can be controlled, and the real-time can be controlled, and the quality can be controlled, and the real-time can be saved, and the quality can be printed and the quality can be compared can be better.
The invention also provides an aerosol printing feedback regulating method based on image processing, which comprises the aerosol printing feedback regulating device based on image processing, and the regulating method further comprises the following steps:
step one: starting an aerosol printer, inputting a printing path code, initializing the position of an aerosol spray head 13 by the aerosol printer according to the printing path code, enabling the aerosol spray head 13 to move to an initial printing position, and meanwhile preheating the aerosol spray head, wherein the aerosol spray head 13 is preheated to have a known function of the aerosol printer, so that a preheating principle is not described in detail;
step two: according to the initial position of the aerosol spray head 13, the position of the CCD camera 34 is adjusted, and particularly, the position of the CCD camera 34 can be adjusted by adjusting the placement angle and the telescopic length of the supporting rod 32, so that the CCD camera can take a picture of a printed line in real time; adjusting the projection angle of the optical fiber head 23, specifically, starting the laser light source 21, and adjusting the projection angle of the optical fiber head 23 light source so as to enable the light source projected on the printing substrate by the optical fiber head 23 to sinter and solidify the lines printed on the printing substrate by the aerosol spray head 13 in real time;
step three: inputting a line expected value range into a singlechip processor by using an operation key arranged on the control area 52, wherein the line expected value range is set according to the actual substrate printing technology requirement;
step four: starting printing, spraying and printing the aerosol spray head 13 according to a program specified path, in the printing process, realizing real-time sintering of lines by utilizing laser, photographing in real time by using the CCD camera 34, capturing the printed lines, transmitting the images to the computer 4 in real time by using the CCD camera 34 in the photographing process, performing data conversion processing on the images by MATLAB software in the computer 4, transmitting the obtained line width value to the singlechip processor, comparing the obtained line width value with an input line expected value range in real time by the singlechip processor, and when the line width value is larger than the maximum value of the line expected value range, regulating the electric control flow regulating valve 53 by using the singlechip processor according to a set program, namely, transmitting a signal for reducing the carrier gas flow to the electric control flow regulating valve 53, thereby realizing flow regulation of the aerosol spray head 13Finishing to achieve a reduction in print line width; when the line width value is in the line expected value range or equal to the minimum value or the maximum value of the line expected value range, the singlechip processor does not send a regulating instruction to the electric control flow regulating valve 53, so that the electric control flow regulating valve 53 continues to work according to the existing working state; when the line width value is smaller than the minimum value of the line expected value range, the singlechip processor adjusts the electric control flow regulating valve 53 according to a set program, namely, sends a signal of increasing the carrier gas flow to the electric control flow regulating valve 53, thereby realizing the flow adjustment of the aerosol spray head 13 so as to realize the increase of the printing line width; the MATLAB software adopts a binarization processing mode to process images, and the specific processing flow is as follows: firstly, carrying out gray scale treatment on an image, then carrying out filtering treatment on the image, solving an image consistency measure A after the filtering treatment is finished, carrying out the following comparison process on the consistency measure A, carrying out corrosion treatment on the image when A is more than 110, and carrying out image binarization treatment after the corrosion treatment is finished; when A is more than or equal to 110 and less than or equal to 120, performing edge detection treatment, performing corrosion and expansion treatment on the image after the edge detection treatment is finished, and performing image binarization treatment; when A is more than 120, performing corrosion treatment on the image, and then directly performing image binarization treatment; after binarization processing is completed on the image, line width data is acquired, and the specific acquisition processing method comprises the following steps: the line is distributed in an XY plane coordinate system, wherein the length of the line is distributed along an X axis, namely a transverse axis, the width of the line is distributed along a Y axis, namely a longitudinal axis, n valued points are removed from the line in unit length, the line width of each valued point is calculated, then the average line width of the n valued points is taken as the line width value in unit length, and the calculation formula of the line width value in unit length is as follows:wherein L is W Line width value per unit length->For the Y value at the boundary point on the line at the value point, < >>The Y value at the line lower boundary point at the value point is taken.
Other than the technical features described in the specification, all are known to those skilled in the art.
While the preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and the scope of the invention is also defined by the appended claims.

Claims (6)

1. The utility model provides an aerosol printing feedback adjusting device based on image processing, includes the aerosol printer, the aerosol printer includes moving platform, ultrasonic atomizing device, aerosol shower nozzle, print platform, moving platform sets up in the frame of aerosol printer, the aerosol shower nozzle sets up on the moving platform, and be located print platform top, moving platform is used for driving the aerosol shower nozzle is controlled and is moved back and forth, ultrasonic atomizing device utilizes the air current pipeline to realize to the aerosol shower nozzle provides aerosol printing particles, characterized by that, this adjusting device still includes line solidification module, image real-time acquisition module, image processing module, data feedback adjusting module, line solidification module is used for realizing the solidification of printing lines in real time in the aerosol printer printing process, image real-time acquisition module is used for realizing the shooting of printing lines in real time in the aerosol printer printing process and transmitting the picture to image processing module, image processing module is used for realizing the picture data processing and transmitting the line width data who obtains with handling to the data feedback adjusting module, data feedback adjusting module is used for realizing the line width and the comparison of aerosol particles in the real-time flow control module and carrying out the comparison real-time flow control module according to the expected value of aerosol particles.
2. The aerosol printing feedback adjustment device based on image processing according to claim 1, wherein the line curing module comprises a laser light source, an optical fiber and an optical fiber head, the optical fiber head is arranged at the emitting end of the optical fiber light source, the laser light source and the optical fiber are arranged at one side of the aerosol spray head, the line curing module and the aerosol spray head synchronously move, the laser light source is connected with the light source entering end of the optical fiber, and the light source projected on the printing substrate by the optical fiber head is used for sintering and curing lines formed by printing on the printing substrate by the aerosol spray head in real time.
3. The aerosol printing feedback adjusting device based on image processing according to claim 2, wherein the image real-time acquisition module comprises a fixed support, an adjusting support rod and a CCD camera, the fixed support is fixedly arranged on a frame of the aerosol printer, a U-shaped frame is arranged on the upper portion of the fixed support, a support tube is arranged in the U-shaped frame, a round tube base of the adjusting support rod is sleeved on the support tube, the adjusting support rod can freely rotate relative to the support tube, the U-shaped frame realizes that the adjusting support rod can move left and right relative to the support tube, an adjusting bolt is sleeved in the support tube, a positioning clamping groove is sleeved at the nut end of the adjusting bolt, a positioning clamping groove is arranged on the outer edge of the side wall of the round tube base opposite to the positioning clamping groove, positioning clamping teeth are pressed in the corresponding positioning clamping groove through the adjusting bolt, the rotation limiting of the adjusting support rod is realized, a camera fixing base is arranged at the swinging end of the adjusting support rod, the CCD camera is fixed on the CCD base, and the CCD camera can be used for acquiring images, and the image processing module can realize that the image processing is high.
4. An aerosol printing feedback adjustment device based on image processing according to claim 3, wherein the adjustment support rod is a telescopic rod.
5. The aerosol printing feedback regulating device based on image processing of claim 4, wherein the image processing module comprises a computer, MATLAB software is installed in the computer, the data feedback regulating module comprises an operation table and an electric control flow regulating valve, the operation table comprises a display screen, a control area and a singlechip processor, the singlechip processor is electrically connected with the display screen and the control area, the electric control flow regulating valve is arranged on the air flow conveying pipeline, and the electric control flow regulating valve is electrically connected with the singlechip processor.
6. An image processing-based aerosol printing feedback adjustment method, comprising the image processing-based aerosol printing feedback adjustment device according to claim 6, the adjustment method further comprising the steps of:
step one: starting an aerosol printer, inputting a printing path code, initializing the position of an aerosol spray head by the aerosol printer according to the printing path code, so that the aerosol spray head moves to an initial printing position, and meanwhile, preheating the aerosol spray head;
step two: according to the initial position of the aerosol spray head, the position of the CCD camera is adjusted by adjusting the placement angle and the telescopic length of the support rod, so that the CCD camera can take a picture of a printed line in real time; starting a laser light source, and adjusting the projection angle of the optical fiber head light source so that the light source projected on the printing substrate by the optical fiber head can sinter and solidify lines printed on the printing substrate by the aerosol spray head in real time;
step three: inputting the expected value range of the line into a singlechip processor by utilizing the control area;
step four: printing is started, the aerosol spray head performs spraying printing according to a program designated path, the CCD camera performs real-time photographing to capture printed lines, and the CCD camera performs real-time photographingThe image is transmitted to a computer, MATLAB software in the computer carries out data conversion processing on the image and transmits the obtained line width value to a singlechip processor, the singlechip processor compares the obtained line width value with an input line expected value range in real time, and when the line width value is larger than the maximum value of the line expected value range, the singlechip processor adjusts an electric control flow regulating valve according to a set program to reduce the flow of the aerosol spray head so as to reduce the width of a printing line; when the line width value is in the line expected value range or is equal to the minimum value or the maximum value of the line expected value range, the singlechip processor does not send a regulating instruction to the electric control flow regulating valve, so that the electric control flow regulating valve continuously works according to the existing working state; when the line width value is smaller than the minimum value of the line expected value range, the singlechip processor adjusts the electric control flow regulating valve according to a set program to increase the flow of the aerosol spray head so as to realize the increase of the printing line width; the MATLAB software adopts a binarization processing mode to process images, and the specific processing flow is as follows: firstly, carrying out gray scale treatment on an image, then carrying out filtering treatment on the image, solving an image consistency measure A after the filtering treatment is finished, carrying out the following comparison process on the consistency measure A, carrying out corrosion treatment on the image when A is more than 110, and carrying out image binarization treatment after the corrosion treatment is finished; when A is more than or equal to 110 and less than or equal to 120, performing edge detection treatment, performing corrosion and expansion treatment on the image after the edge detection treatment is finished, and performing image binarization treatment; when A is more than 120, performing corrosion treatment on the image, and then directly performing image binarization treatment; after binarization processing is completed on the image, line width data is acquired, and the specific acquisition processing method comprises the following steps: the line is distributed in an XY plane coordinate system, wherein the length of the line is distributed along an X axis, namely a transverse axis, the width of the line is distributed along a Y axis, namely a longitudinal axis, n valued points are removed from the line in unit length, the line width of each valued point is calculated, then the average line width of the n valued points is taken as the line width value in unit length, and the calculation formula of the line width value in unit length is as follows:wherein L is W Line width value per unit length->For the Y value at the boundary point on the line at the value point, < >>The Y value at the line lower boundary point at the value point is taken.
CN202310625707.0A 2023-05-30 2023-05-30 Aerosol printing feedback adjusting device and method based on image processing Pending CN116690992A (en)

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CN202310625707.0A CN116690992A (en) 2023-05-30 2023-05-30 Aerosol printing feedback adjusting device and method based on image processing

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