System and method for carrying out alignment detection by adopting optical technology

Abstract

The invention relates to the technical field of optical projection, and particularly provides a system and a method for performing alignment detection by adopting an optical technology, the system adopts a projection instrument, and the projection instrument comprises a projection lens; the system comprises an image acquisition module, an image encryption module, an image projection module, a feature screening module and an image analysis and alignment module. The method comprises the steps of assembling a projection instrument, collecting a layout map image, segmenting and storing the image and encrypting the image, screening out typesetting features, inputting the typesetting features into a processing module, generating an alignment mold map of each branch, generating a total alignment mold map, performing 1: 1 projection imaging, and performing installation adjustment and production. According to the invention, a layout pattern is converted into an image by using a shadow technology and projection imaging is carried out, so that plate mounting, correspondence and inspection are facilitated, the inspection precision is high, and the processing effect of a production line is greatly improved; compared with an alignment method using a film in the prior art, the method has the advantage of obvious qualitative improvement.

Description

Technical Field

[0001] The present invention relates to the field of optical projection technology, and in particular to a system and method for alignment detection using optical technology. Background Art

[0002] During the printing process, the negative film in the printing plate needs to be accurately aligned and fixed in the corresponding position of the printing machine to ensure that the pattern, text or image of the printed product can be accurately reproduced on the substrate. In the hot stamping and embossing process, most plates are not processed in their entirety, but only in part. Therefore, the hot stamping plate and the embossing plate are only processed in part, so if they are accurately positioned, a registration plate is required.

[0003] The published Chinese patent, with publication number CN114575192A, discloses a paper with the effect of imitating laser paper, its production process and packaging box. The production process of the paper with the effect of imitating laser paper includes the following steps: step 1, preparing the printing substrate; step 2, making a film according to the graphics and text showing the laser effect on the printed product document; step 3, printing a cold stamping plate or a hot stamping plate according to the film; step 4, installing the cold stamping plate in the cold stamping equipment or installing the hot stamping plate on the hot stamping machine, using laser positioning hot stamping foil as the hot stamping material to perform cold stamping or positioning hot stamping on the surface of the printing substrate, so that the surface of the printing substrate obtains a laser effect; step 5, using a UV printer to perform UV printing on the surface of the printing substrate, and curing it under ultraviolet light after standing, and coating it with varnish after printing to obtain a finished product.

[0004] The above-mentioned patent uses film for alignment. Film is a commonly used material in printing plate making. It is usually used to make negatives for printing plates. Through processes such as exposure and development, the design draft is converted into a printable layout. Film alignment is very time-consuming and has extremely high requirements for staff. The alignment efficiency is not high. In addition, film is not reusable, which increases the pressure and cost of procurement and storage environment. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a system and method for alignment detection using optical technology. The present invention uses image alignment instead, which greatly saves alignment time and efficiency and reduces the professional requirements for staff. The alignment imaging is clear and accurate and has unlimited reusability. Long-term use will greatly reduce the application cost. Compared with the prior art, it can achieve qualitative improvements and breakthroughs and can solve the problems in the prior art.

[0006] To achieve the above-mentioned object and other related objects, the present invention provides a system for alignment detection using optical technology, wherein the system uses a projection instrument, and the projection instrument includes a projection lens;

[0007] The system comprises:

[0008] An image acquisition module, which acquires the required layout image through a projection lens;

[0009] An image encryption module, wherein the image encryption module performs encryption operation on the layout image by dividing the drawing content and storing them separately;

[0010] A feature screening module, the feature screening module is used to screen out typesetting features on the typesetting image;

[0011] An image analysis and alignment module, which matches the typesetting features with the mold module information existing in the system one by one and generates an alignment mold map;

[0012] The image projection module projects the alignment mold diagram onto the machine frame at a ratio of 1:1 for projection imaging. The mold corresponding to the alignment mold diagram is selected and used at the workstation on the production line.

[0013] In one embodiment of the present invention, in the image encryption module, the method of storing the segmented drawing contents separately includes segmenting the collected image contents into multiple parts, storing different parts in different locations or systems, and only authorized users can view the image contents.

[0014] In one embodiment of the present invention, the authorized users include ordinary authorized users and special authorized users. Ordinary authorized users only support viewing a single portion of image content, while special authorized users support viewing all portions of image content and all portions of reassembled image content.

[0015] In one embodiment of the present invention, in the feature screening module, the layout features include image position, image color block, knife line etching contour, and color separation coating.

[0016] In one embodiment of the present invention, the mold module includes a processing module used in any one of a hot stamping machine, a die-cutting machine, and a printing machine.

[0017] In one embodiment of the present invention, the projection instrument further comprises a light source, and the light source provides illumination for the projection lens to collect light. The projection system modulates the light beam of the light source and outputs the light beam to the projection lens for imaging.

[0018] In one embodiment of the present invention, the light source is a laser light source or a mixed light source of laser and fluorescence, and the laser light source includes a two-color laser light source or a three-primary color laser light source.

[0019] A method for alignment detection using optical technology, based on the system for alignment detection using optical technology, comprises the following steps:

[0020] S1. Use a workbench, suspend a projector above the workbench, and connect the projector to a control panel; place the layout drawing to be printed on the workbench and below the projection of the projector;

[0021] S2, the projection device modulates the light source beam and outputs it to the projection lens to collect the layout image and transmit it to the control panel;

[0022] S3. The layout image of the collected image is divided into multiple parts in the control panel, and different parts are stored in different locations or systems, and viewing permissions are set;

[0023] S4. The authorized user selects the layout features on the projected layout image; wherein, the ordinary authorized user can only view the current part of the image content and select the features, and the specially authorized user can view any part of the image content and all the reorganized image contents and further select the features;

[0024] S5. Enter the processing modules of the hot stamping machine, die-cutting machine and printing machine in the control panel in advance;

[0025] S6. Ordinary authorized users match the layout features with the mold module information existing in this control panel and generate mold diagrams for each division;

[0026] S7. The specially authorized user collects and reorganizes the alignment mold drawings of each branch to obtain the overall alignment mold drawing;

[0027] S8. The projection equipment projects the alignment mold diagram onto the machine frame at a ratio of 1:1 for projection imaging. The production line can be adjusted according to the alignment mold diagram and put into production.

[0028] A computer program comprising a program code which, when executed in a computer, causes the computer to execute the method.

[0029] A computer-readable storage medium stores a computer program, which, when executed in a computer, causes the computer to execute the method described above.

[0030] As described above, the system and method of the present invention using optical technology for alignment detection have the following features:

[0031] Beneficial effects:

[0032] The present invention utilizes optical projection imaging to collect, encrypt, screen layout features, analyze alignment, and project images of required layout drawings. The layout features include image position, image color blocks, knife line etching contours, color separation coatings, etc., and are projected into images of different positions according to different needs, distinguishing color blocks, knife line etchings, and reflecting different coating color separations. Projection imaging can reflect layout details with high precision, with clear imaging and simple and convenient operation. The overall, classified, regional, and color separation blocks can be quickly selected and accurately aligned, with fast imaging and high efficiency. After a large number of uses, it is usually promoted for use in die-cutting machines, and is also promoted for use in inspection and printing units.

[0033] The present invention utilizes light and shadow technology to convert the structural layout of the layout diagram in graphic form into an image, and projects it onto the table frame of the hot stamping machine, die-cutting machine or the roller plate of the printing press with a 1:1 size ratio. The production line workers adjust the plate installation on the machine position according to the projected image. At the same time, the projected image can also correspond and inspect the engraving blocks, engraving knives and wire teeth used on the machine. The inspection accuracy is high, which greatly improves the production line processing effect. Compared with the existing technology using film alignment method, there is a significant qualitative improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a schematic diagram of collecting data using a projection instrument disclosed in the present invention.

[0035] Figure 2 Shown is a system block diagram of the present invention for performing alignment detection using optical technology.

[0036] Figure 3 The display is a layout diagram collected and projected using a projection device disclosed in the present invention.

[0037] Component number description

[0038] Projection instrument 1; workbench 2; image acquisition module 3; image encryption module 4; feature screening module 5; image analysis and alignment module 6; image projection module 7; control panel 8. DETAILED DESCRIPTION

[0039] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0040] See also Figures 1 to 3It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0041] Example 1, please refer to Figure 1-Figure 3 This embodiment provides a system for alignment detection using optical technology. The system uses a projection instrument 1, which includes a projection lens; the projection instrument 1 also includes a light source, which provides illumination for the projection lens to collect. The projection system modulates the light source beam and outputs it to the projection lens for imaging. The light source is a laser light source or a mixed light source of laser and fluorescence, and the laser light source includes a two-color laser light source or a three-primary color laser light source.

[0042] The system includes an image acquisition module 3, an image encryption module 4, a feature screening module 5, an image analysis and alignment module 6, and an image projection module 7. The image acquisition module 3 acquires the required layout image through a projection lens; the image encryption module 4 encrypts the layout image by dividing the drawing content and storing them separately; the feature screening module 5 is used to screen out layout features on the layout image, and the layout features include image position, image color block, knife line etching contour, color separation coating, etc.; the image analysis and alignment module 6 matches the layout features with the mold module information existing in the system one by one and generates an alignment mold map; the image projection module 7 projects the alignment mold map onto the machine frame at a ratio of 1:1 for projection imaging, and the mold selected on the production line according to the alignment mold map can be used at the workstation, wherein the mold module includes a processing module used on any machine of a hot stamping machine, a die-cutting machine, and a printing machine.

[0043] The method of storing the divided drawing content separately includes dividing the collected image content into multiple parts, storing different parts in different locations or systems, and only authorized users can view the image content; the risk of single file leakage is reduced by decentralized storage, and the possibility of illegal personnel obtaining the complete drawing at one time is reduced. The authorized users include ordinary authorized users and special authorized users. Ordinary authorized users only support viewing a single part of the image content, and special authorized users support viewing all parts of the image content and all parts of the reorganized image content.

[0044] The present invention utilizes optical projection imaging to collect, encrypt, screen layout features, analyze alignment, and project images of required layout drawings. The layout features include image position, image color blocks, knife line etching contours, color separation coatings, etc., and are projected into images of different positions according to different needs, distinguishing color blocks, knife line etchings, and reflecting different coating color separations. Projection imaging can reflect layout details with high precision, with clear imaging and simple and convenient operation. The overall, classified, regional, and color separation blocks can be quickly selected and accurately aligned, with fast imaging and high efficiency. After a large number of uses, it is usually promoted for use in die-cutting machines, and is also promoted for use in inspection and printing units.

[0045] Embodiment 2: This embodiment provides a method for alignment detection using optical technology, including the system for alignment detection using optical technology described in Embodiment 1, including the following steps:

[0046] S1. Use a workbench 2, and suspend a projector 1 above the workbench 2. The projector 1 is electrically connected to a control panel 8. The control panel 8 can be handheld or installed on the machine. The control panel 8 can use a handheld tablet computer display. Place the layout drawing to be printed on the workbench 2 and below the projection of the projector 1.

[0047] S2, the projection device 1 modulates the light source beam and outputs it to the projection lens to collect the layout image and transmit it to the control panel 8;

[0048] S3, the collected layout image is divided into multiple parts in the control panel 8, different parts are stored in different locations or systems, and viewing permissions are set;

[0049] S4. The authorized user selects the layout features on the projected layout image; wherein, the ordinary authorized user can only view the current part of the image content and select the features, and the specially authorized user can view any part of the image content and all the reorganized image contents and further select the features;

[0050] S5, entering the processing modules of the hot stamping machine, die-cutting machine and printing machine in the control panel 8 in advance;

[0051] S6. The user with ordinary authorization matches the typesetting features with the mold module information existing in the control panel 8 and generates a mold diagram for each division;

[0052] S7. The specially authorized user collects and reorganizes the alignment mold drawings of each branch to obtain the overall alignment mold drawing;

[0053] S8. The projection device 1 projects the alignment mold diagram onto the machine frame at a ratio of 1:1 for projection imaging. The production line can be adjusted according to the alignment mold diagram and put into production.

[0054] Embodiment 3, this embodiment provides a computer program, which includes program code that, when run in a computer, causes the computer to execute the method according to the first aspect. The computer program can be stored or distributed in the form of an electronic memory such as RAM, SRAM, DRAM, SDRAM, ROM, PROM, EPROM, EEPROM, etc.; an optical disk; a magnetic disk or a magnetic tape; or other commercial storage medium. The storage medium can also be a propagation signal.

[0055] In summary, the present invention uses light and shadow technology to convert the structural layout of the layout diagram into an image, and projects it onto the machine frame of the hot stamping machine, die-cutting machine or the roller plate of the printing press with a 1:1 size ratio. The production line workers adjust the plate installation on the machine position according to the projected image. At the same time, the projected image can also correspond and inspect the engraving blocks, engraving knives, and wire teeth used on the machine. The inspection accuracy is high, which greatly improves the production line processing effect; compared with the alignment method using film in the prior art, there is a significant qualitative improvement. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A system for alignment detection using optical technology, characterized in that: The system uses a projection instrument, which includes a projection lens; The system comprises: An image acquisition module, which acquires the required layout image through a projection lens; An image encryption module, wherein the image encryption module performs encryption operation on the layout image by dividing the drawing content and storing them separately; A feature screening module, the feature screening module is used to screen out typesetting features on the typesetting image; An image analysis and alignment module, which matches the typesetting features with the mold module information existing in the system one by one and generates an alignment mold map; An image projection module projects the alignment mold image onto the machine frame at a ratio of 1:1 for projection imaging; on the production line, the mold is selected according to the alignment mold image and used at the corresponding workstation.

2. The system for alignment detection using optical technology according to claim 1, characterized in that: In the image encryption module, the method of storing the divided drawing contents separately includes dividing the collected image contents into multiple parts, storing different parts in different locations or systems, and only authorized users can view the image contents.

3. The system for alignment detection using optical technology according to claim 2, characterized in that: The authorized users include common authorized users and special authorized users. Common authorized users are only supported to view a single portion of image content, while special authorized users are supported to view all portions of image content and all portions of reorganized image content.

4. The system for alignment detection using optical technology according to claim 1, characterized in that: In the feature screening module, the layout features include image position, image color block, knife line etching outline, and color separation coating.

5. The system for alignment detection using optical technology according to claim 1, characterized in that: The mold module includes a processing module used in any one of a hot stamping machine, a die-cutting machine and a printing machine.

6. The system for alignment detection using optical technology according to claim 1, characterized in that: The projection instrument also includes a light source, which provides illumination for the projection lens to collect light. The projection system modulates the light beam from the light source and outputs it to the projection lens for imaging.

7. The system for alignment detection using optical technology according to claim 6, characterized in that: The light source is a laser light source or a mixed light source of laser and fluorescence, and the laser light source includes a two-color laser light source or a three-primary color laser light source.

8. A method for alignment detection using optical technology, based on the system for alignment detection using optical technology according to any one of claims 1 to 7, characterized in that: The steps include: S1. Use a workbench, suspend a projector above the workbench, and connect the projector to a control panel; place the layout drawing to be printed on the workbench and below the projection of the projector; S2, the projection device modulates the light source beam and outputs it to the projection lens to collect the layout image and transmit it to the control panel; S3. The layout image of the collected image is divided into multiple parts in the control panel, and different parts are stored in different locations or systems, and viewing permissions are set; S4. The authorized user selects the layout features on the projected layout image; wherein, the ordinary authorized user can only view the current part of the image content and select the features, and the specially authorized user can view any part of the image content and all the reorganized image contents and further select the features; S5. Enter the processing modules of the hot stamping machine, die-cutting machine and printing machine in the control panel in advance; S6. Ordinary authorized users match the layout features with the mold module information existing in this control panel and generate mold diagrams for each division; S7. The specially authorized user collects and reorganizes the alignment mold drawings of each branch to obtain the overall alignment mold drawing; S8. The projection equipment projects the alignment mold diagram onto the machine frame at a ratio of 1:1 for projection imaging. The production line can be adjusted according to the alignment mold diagram and put into production.

9. A computer program, characterized in that The program comprises a program code which, when executed in a computer, causes the computer to execute the method according to claim 8 .

10. A computer-readable storage medium, characterized in that: A computer program is stored therein, which, when executed in a computer, causes the computer to execute the method according to claim 8.

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