CN116278380A - Automatic printing snapshot font system and font snapshot method - Google Patents

Automatic printing snapshot font system and font snapshot method Download PDF

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Publication number
CN116278380A
CN116278380A CN202310309394.8A CN202310309394A CN116278380A CN 116278380 A CN116278380 A CN 116278380A CN 202310309394 A CN202310309394 A CN 202310309394A CN 116278380 A CN116278380 A CN 116278380A
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China
Prior art keywords
unit
printing
shooting
module
adjusting
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Pending
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CN202310309394.8A
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Chinese (zh)
Inventor
刘国澄
黄文奎
刘杰
苏春红
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Guilin Hongya Color Printing And Packaging Co ltd
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Guilin Hongya Color Printing And Packaging Co ltd
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Application filed by Guilin Hongya Color Printing And Packaging Co ltd filed Critical Guilin Hongya Color Printing And Packaging Co ltd
Priority to CN202310309394.8A priority Critical patent/CN116278380A/en
Publication of CN116278380A publication Critical patent/CN116278380A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The invention relates to the technical field of printing, in particular to an automatic printing snapshot font system and a font snapshot method. And the offset distance of the image is combined to obtain an error value, and finally, the driving module on the printing structure is driven by the adjusting module based on the error value to adjust the position of the printing structure, so that the printing system can be automatically corrected, and the processing efficiency and the processing quality are improved.

Description

Automatic printing snapshot font system and font snapshot method
Technical Field
The invention relates to the technical field of printing, in particular to an automatic printing snapshot font system and a font snapshot method.
Background
The existing printer adopts color separation printing when printing color fonts, namely one printing station only prints one color, the printing material is printed with patterns of various colors when sequentially passing through each printing unit, and the complete color pattern is formed when the last color is printed. However, during the printing process, the actual printing position deviates from the original printing position due to the changes of factors such as system tension, temperature, physical properties of the printing material and the like, and the error is called a color register error. Because of the color register error, high-speed printers can generate a large amount of waste products in the processes of starting up, changing rolls and washing plates.
At present, a common operation mode is manual operation, and an operator continuously observes the printing quality of a printed matter through naked eyes, and manually adjusts the position of a corresponding printing cylinder after finding deviation.
However, the manual labor intensity is high and the working efficiency is low by adopting the mode.
Disclosure of Invention
The invention aims to provide an automatic printing snapshot font system and a font snapshot method, which aim to automatically adjust the position of a printing structure and improve the working efficiency.
In order to achieve the above object, in a first aspect, the present invention provides an automatic print snapshot font system, which includes a marking module, a plurality of shooting modules, a comparison module and an adjustment module, wherein the plurality of shooting modules are connected with the comparison module, and the adjustment module is connected with the comparison module;
the marking module is used for marking the printing paper;
the shooting module is used for shooting the paper in printing at a high speed to obtain a shooting image;
the comparison module is used for comparing the shot images obtained by the plurality of shooting modules in a preset time period to obtain an error value;
the adjustment module is used for driving the driving module to adjust the printing structure based on the error value.
The automatic snapshot font printing system comprises a printing system, a printing system and a printing system, wherein the printing system further comprises a caching module, and the caching module is used for storing photographed images.
The shooting module comprises an illumination unit and a shooting unit, wherein the illumination unit is used for providing illumination conditions during shooting, and the shooting unit is used for shooting printing paper at a high speed.
The shooting module further comprises an adjusting structure, the adjusting structure comprises a test data acquisition unit, an inclination angle calculation unit and a first adjusting unit, the test data acquisition unit is used for acquiring a test image shot by the shooting unit in a position test mode, the inclination angle calculation unit is used for calculating an inclination angle based on the difference value between the test image and a standard image, and the first adjusting unit is used for adjusting the angle of the shooting unit based on the inclination angle.
The comparison module comprises a time setting unit, a cutting unit and a comparison unit, wherein the time setting unit, the cutting unit and the comparison unit are sequentially connected, and the time setting unit is used for setting a preset time period based on shooting parameters of the shooting unit;
the clipping unit is used for clipping the shot images in a preset time period to obtain target images;
the comparison unit is used for comparing the target images of all the shooting units to obtain an error value.
The adjusting module comprises a coding unit and a second adjusting unit, wherein the coding unit is used for coding the error value to obtain coding information; the second adjusting unit is used for adjusting the printing structure by adopting the driving unit based on the coding information.
The automatic printing snapshot font system further comprises a judging module, wherein the judging module is used for comparing fonts with printing texts, judging whether the printing is missing or not, and adjusting the corresponding printing module if the printing is missing.
In a second aspect, the present invention further provides a font capturing method of a printing automatic capturing font system, including:
marking the printed paper;
shooting a paper in printing at a high speed to obtain a shooting image;
comparing the shooting images obtained by the shooting modules within a preset time period to obtain an error value;
the driving module is driven to adjust the printing structure based on the error value.
The invention relates to an automatic printing snapshot font system and a font snapshot method, wherein a printing paper is marked by a marking module; the color code group consists of a group of color marks with diamond shapes, the color codes can be arranged at any position of the printing plate, and other patterns can appear around the color code group: the color codes can be arranged along the circumferential direction of the printing plate or along the axial direction of the printing plate: and then a plurality of shooting modules are sequentially arranged on one sides of the plurality of coloring printing structures, so that shooting is performed after each coloring printing structure is printed, actual processing conditions are collected, and shooting images obtained by the plurality of shooting modules in a preset time period are compared through the comparison modules, so that differences of pixel points at the same position are obtained. And combining the offset distance of the image to obtain an error value, and finally adopting the adjusting module to drive the driving module on the printing structure to adjust the position of the printing structure based on the error value, so that the printing system can be automatically corrected, and the processing efficiency and the processing quality are improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a printing automatic snap font system according to a first embodiment of the present invention.
Fig. 2 is a block diagram of a printing automatic snap font system according to a second embodiment of the present invention.
Fig. 3 is a block diagram of a photographing module according to a second embodiment of the present invention.
Fig. 4 is a structural diagram of an adjustment structure of a second embodiment of the present invention.
Fig. 5 is a block diagram of an alignment module according to a second embodiment of the present invention.
Fig. 6 is a block diagram of an adjustment module according to a second embodiment of the present invention.
Fig. 7 is a block diagram of a judgment module according to a second embodiment of the present invention.
Fig. 8 is a flow chart of a font snapshot method of a printing automatic snapshot font system according to a third embodiment of the present invention.
101-marking module, 102-shooting module, 103-comparing module, 104-adjusting module, 201-buffering module, 202-lighting unit, 203-shooting unit, 204-adjusting structure, 205-test data acquisition unit, 206-inclination calculation unit, 207-first adjusting unit, 208-time setting unit, 209-clipping unit, 210-comparing unit, 211-encoding unit, 212-second adjusting unit, 213-judging module, 214-pixel acquisition unit, 215-color difference calculation unit, 216-third adjusting unit, 217-alarm unit.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1, fig. 1 is a block diagram of a printing automatic snap font system according to a first embodiment of the present invention. The invention provides an automatic snapshot font printing system, which comprises: the device comprises a marking module 101, a plurality of shooting modules 102, a comparison module 103 and an adjustment module 104, wherein a plurality of shooting modules 102 are connected with the comparison module 103, and the adjustment module 104 is connected with the comparison module 103;
the marking module 101 is used for marking the printing paper;
the shooting module 102 is configured to shoot a paper in printing at a high speed to obtain a shot image;
the comparison module 103 compares the photographed images obtained by the plurality of photographing modules 102 within a preset time period to obtain an error value;
the adjustment module 104 is configured to drive the driving module to adjust the printing structure based on the error value.
In this embodiment, the marking module 101 is used to mark the printed paper, and the specific scheme may be to print a color code set specially used for detecting color registration errors on the outer side of each color of printed pattern during plate making; the color code group consists of a group of color marks with diamond shapes, the color codes can be arranged at any position of the printing plate, and other patterns can appear around the color code group: the color codes can be arranged along the circumferential direction of the printing plate or along the axial direction of the printing plate: then, a plurality of shooting modules 102 are sequentially installed on one sides of a plurality of coloring printed structures, so that shooting is performed after each coloring printed structure is printed, actual processing conditions are collected, and then shooting images obtained by the plurality of shooting modules 102 in a preset time period are compared through the comparison module 103, so that differences of pixel points in the same position are obtained. And combining the offset distance of the image to obtain an error value, and finally adopting the adjustment module 104 to drive a driving module on the printing structure to adjust the position of the printing structure based on the error value, so that the printing system can be automatically corrected, and the processing efficiency and the processing quality are improved.
Second embodiment
Referring to fig. 2 to 7, fig. 2 is a block diagram of a printing automatic snap font system according to a second embodiment of the present invention. Fig. 3 is a block diagram of a photographing module according to a second embodiment of the present invention. Fig. 4 is a structural diagram of an adjustment structure of a second embodiment of the present invention. Fig. 5 is a block diagram of an alignment module according to a second embodiment of the present invention. Fig. 6 is a block diagram of an adjustment module according to a second embodiment of the present invention. Fig. 7 is a block diagram of a judgment module according to a second embodiment of the present invention. On the basis of the first embodiment, the invention further provides a printing automatic snapshot font system, and the printing automatic snapshot font system further comprises a buffer module 201, wherein the buffer module 201 is used for storing a shot image. The cache module 201 can store the shot image, so that the reasons for the occurrence of the problems can be conveniently searched later, and the use is more convenient.
In this embodiment, the photographing module 102 includes an illumination unit 202 and a photographing unit 203, the illumination unit 202 is used for providing illumination conditions during photographing, and the photographing unit 203 is used for photographing a printed paper at a high speed. The illumination unit 202 can provide stable illumination for a printing scene, so that the shooting environment of the shooting unit 203 is more problematic, the shooting quality is improved, then the shooting unit 203 can collect images, and the shooting unit 203 can select to adopt a matched high-speed camera according to the printing speed.
The photographing module 102 further includes an adjusting structure 204, where the adjusting structure 204 includes a test data obtaining unit 205, an inclination calculating unit 206, and a first adjusting unit 207, where the test data obtaining unit 205 is configured to obtain a test image photographed by the photographing unit 203 in a position test mode, the inclination calculating unit 206 is configured to calculate an inclination angle based on a difference between the test image and a standard image, and the first adjusting unit 207 is configured to adjust an angle of the photographing unit based on the inclination angle. Since the plurality of photographing units 203 are required to be simultaneously installed at different positions for photographing, if the installation angles are inconsistent, the photographed plurality of photographs will have offset during comparison, thereby affecting the judging precision, and the adjusting structure 204 is set for adjusting, specifically, the test data obtaining unit 205 is used for controlling the photographing unit 203 to photograph the test image, then the inclination angle is calculated by the difference value between the test image and the standard image through the inclination angle calculating unit 206, the calculation is performed by combining the distance data from the camera to the photographing plane, and finally the angle of the photographing unit is adjusted by the first adjusting unit 207 based on the inclination angle, and the first adjusting unit 207 can adopt a stepping motor, so that the judging precision of the system can be improved.
Specifically, the comparison module 103 includes a time setting unit 208, a clipping unit 209, and a comparison unit 210, where the time setting unit 208, the clipping unit 209, and the comparison unit 210 are sequentially connected, and the time setting unit 208 is configured to set a preset time period based on a shooting parameter of the shooting unit 203; the cropping unit 209 is configured to crop the captured image within a preset period of time to obtain a target image; the comparing unit 210 is configured to compare the target images of all the shooting units 203 to obtain an error value. Because the three independent shooting units 203 independently perform shooting, and because the shooting speed is high, when comparing, the same section of printing object needs to be selected for comparison, the matching time period can be calculated by combining the distance between the adjacent shooting units 203 and the shooting speed to select a correct image, then the target image needing to be calculated is cut out by the cutting unit 209, thus the calculated amount can be reduced, the operation efficiency of the system is improved, and finally, the error value is obtained by shifting the pixel blocks of the target image.
Then, the adjustment module 104 includes an encoding unit 211 and a second adjustment unit 212, where the encoding unit 211 is configured to encode the error value to obtain encoded information; the second adjusting unit 212 is configured to adjust the printing structure by using the driving unit based on the encoded information. The encoding unit 211 may convert the distance value of the error value to a format required by the second adjusting unit 212, and then the second adjusting unit 212 may control the printing structure accordingly, so that the use is more convenient.
Further, the automatic print snapshot font system further includes a judging module 213, where the judging module 213 is configured to compare the font with the print text, judge whether there is a defect, and adjust the corresponding printing module if the defect occurs. In addition to the problem of offset of the printing structure during the printing process, the problem of missing fonts or color distortion caused by ink leakage or insufficient ink may also occur, so the determining module 213 is set for detecting.
Specifically, the judging module 213 includes a pixel acquiring unit 214, a color difference calculating unit 215, a third adjusting unit 216, and an alarm unit 217, where the pixel acquiring unit 214, the color difference calculating unit 215, and the third adjusting unit 216 are sequentially connected, and the pixel acquiring unit 214 is configured to acquire a color pixel of a font; the color difference calculating unit 215 is configured to compare the color pixels with the printed text, and calculate a color difference; the third adjusting unit 216 is configured to find a missing color based on the color difference value, and adjust the corresponding printing module. In a specific operation, a preset number of pixels may be randomly selected, and then the pixels of the pixels are compared with a standard printed text to determine whether the color is true, and if the color is true, the third adjustment unit 216 is used for adjusting the corresponding printing module, so as to reduce the generation of defective products, so that the use is more convenient.
Finally, the alarm unit 217 is configured to determine whether there is a stain based on the color difference value in the range, and if there is a stain, send out an alarm to stop. The alarm unit 217 can alarm and inform relevant personnel to process in time, so that the use is more convenient.
Third embodiment
Referring to fig. 8, fig. 8 is a flowchart of a font capturing method of a printing automatic capturing font system according to a third embodiment of the present invention. On the basis of the first embodiment, the invention also provides a font snapshot method of the printing automatic snapshot font system, which comprises the following steps:
s101, marking a printing paper;
the adopted marking module 101 is used for marking the printing paper, and the specific scheme can be that a color code group specially used for detecting color register errors is printed on the outer side of each color printing pattern during plate making; the color code group consists of a group of color marks with diamond shapes, the color codes can be arranged at any position of the printing plate, and other patterns can appear around the color code group: the color patches may be arranged circumferentially or axially with respect to the printing plate.
S102, shooting a paper in printing at a high speed to obtain a shooting image;
and then sequentially mounted to one side of a plurality of coloring printed structures using a plurality of photographing modules 102, so that photographing is performed after each coloring printed structure is printed, to collect actual processing conditions,
s103, comparing the shot images obtained by the plurality of shooting modules 102 in a preset time period to obtain an error value;
and then comparing the photographed images obtained by the plurality of photographing modules 102 in a preset time period through the comparison module 103 to obtain the difference value of the pixel points at the same position. And combining the offset distance of the image to obtain an error value.
S104, driving the driving module to adjust the printing structure based on the error value.
Finally, the adjustment module 104 is used for driving the driving module on the printing structure based on the error value to adjust the position of the printing structure, so that the printing system can be automatically corrected, and the processing efficiency and the processing quality are improved.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.

Claims (8)

1. A printing automatic snapshot font system is characterized in that,
the device comprises a marking module, a plurality of shooting modules, a comparison module and an adjusting module, wherein the plurality of shooting modules are connected with the comparison module, and the adjusting module is connected with the comparison module;
the marking module is used for marking the printing paper;
the shooting module is used for shooting the paper in printing at a high speed to obtain a shooting image;
the comparison module is used for comparing the shot images obtained by the plurality of shooting modules in a preset time period to obtain an error value;
the adjustment module is used for driving the driving module to adjust the printing structure based on the error value.
2. An automatic snap-printing font system as in claim 1,
the automatic snapshot font printing system further comprises a cache module, and the cache module is used for storing the shot image.
3. An automatic snap-printing font system as in claim 2,
the shooting module comprises an illumination unit and a shooting unit, wherein the illumination unit is used for providing illumination conditions during shooting, and the shooting unit is used for shooting printing paper at a high speed.
4. An automatic snap-printing font system as claimed in claim 3, wherein,
the shooting module further comprises an adjusting structure, the adjusting structure comprises a test data acquisition unit, an inclination angle calculation unit and a first adjusting unit, the test data acquisition unit is used for acquiring a test image shot by the shooting unit in a position test mode, the inclination angle calculation unit is used for calculating an inclination angle based on the difference value between the test image and a standard image, and the first adjusting unit is used for adjusting the angle of the shooting unit based on the inclination angle.
5. A print automatic snap font system as in claim 4,
the comparison module comprises a time setting unit, a cutting unit and a comparison unit, wherein the time setting unit, the cutting unit and the comparison unit are sequentially connected, and the time setting unit is used for setting a preset time period based on shooting parameters of the shooting unit;
the clipping unit is used for clipping the shot images in a preset time period to obtain target images;
the comparison unit is used for comparing the target images of all the shooting units to obtain an error value.
6. An automatic snap-printing font system as in claim 5,
the adjusting module comprises a coding unit and a second adjusting unit, wherein the coding unit is used for coding the error value to obtain coding information; the second adjusting unit is used for adjusting the printing structure by adopting the driving unit based on the coding information.
7. An automatic snap-printing font system as in claim 6,
the automatic snapshot font system for printing further comprises a judging module, wherein the judging module is used for comparing the fonts with the printed text, judging whether the printing is missing or not, and adjusting the corresponding printing module if the printing is missing.
8. A font snapshot method of a printing automatic snapshot font system, employing the printing automatic snapshot font system as claimed in any one of claims 1 to 7, comprising:
marking the printed paper;
shooting a paper in printing at a high speed to obtain a shooting image;
comparing the shooting images obtained by the shooting modules within a preset time period to obtain an error value;
the driving module is driven to adjust the printing structure based on the error value.
CN202310309394.8A 2023-03-27 2023-03-27 Automatic printing snapshot font system and font snapshot method Pending CN116278380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310309394.8A CN116278380A (en) 2023-03-27 2023-03-27 Automatic printing snapshot font system and font snapshot method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310309394.8A CN116278380A (en) 2023-03-27 2023-03-27 Automatic printing snapshot font system and font snapshot method

Publications (1)

Publication Number Publication Date
CN116278380A true CN116278380A (en) 2023-06-23

Family

ID=86777771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310309394.8A Pending CN116278380A (en) 2023-03-27 2023-03-27 Automatic printing snapshot font system and font snapshot method

Country Status (1)

Country Link
CN (1) CN116278380A (en)

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