CN112937088A - Net frame nesting system - Google Patents

Net frame nesting system Download PDF

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Publication number
CN112937088A
CN112937088A CN202110326383.1A CN202110326383A CN112937088A CN 112937088 A CN112937088 A CN 112937088A CN 202110326383 A CN202110326383 A CN 202110326383A CN 112937088 A CN112937088 A CN 112937088A
Authority
CN
China
Prior art keywords
printing
pattern
frame
mark
marking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110326383.1A
Other languages
Chinese (zh)
Inventor
陈洁辉
周华
冀万六
邱向亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Cnding Robot Co ltd
Original Assignee
Guangzhou Cnding Robot Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Cnding Robot Co ltd filed Critical Guangzhou Cnding Robot Co ltd
Priority to CN202110326383.1A priority Critical patent/CN112937088A/en
Publication of CN112937088A publication Critical patent/CN112937088A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The invention provides a screen frame nesting system, which comprises: the printing device comprises a printing head and a screen frame which are movably arranged on the rack, and a position adjusting mechanism for driving the screen frame to move; the printing device is used for generating mark patterns on the printing bedplate in a one-to-one correspondence manner; the image acquisition device is used for acquiring each mark pattern; the image processing device is used for selecting any one of the mark patterns as a reference pattern and determining the offset distance of the mark pattern corresponding to each printing device relative to the reference pattern; the position adjusting mechanism adjusts the position of the screen frame according to the corresponding offset distance. The screen frame nesting system collects the mark patterns of a plurality of printing devices through one image collecting device, automatically adjusts the screen frame after the offset distance is obtained, and is high in adjusting speed and accurate.

Description

Net frame nesting system
Technical Field
The invention relates to the technical field of printing, in particular to a screen frame nesting system.
Background
The oval printing machine is an automatic printing device, is suitable for various printing materials, such as glue drops, water paste, printing ink and the like, and is suitable for the plane screen printing of cut pieces such as clothing cut-parts printing, ready-made clothes, trousers, socks, umbrellas and the like; the printing process is applicable to the following steps: and (5) carrying out thick plate discharge dyeing, and combining with a pressing machine to carry out gold stamping, silver stamping and the like.
The elliptical printing machine is characterized in that the cameras are arranged on the printing heads, one printing head corresponds to one camera, and when the number of the printing heads is large, the cost is greatly wasted.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a screen frame nesting system.
One embodiment of the present invention provides a frame nesting system, comprising: the printing device comprises a printing head and a screen frame which are movably arranged on the rack and a position adjusting mechanism for driving the screen frame to move, and the position adjusting mechanism is connected with the image processing device;
the printing device is used for generating mark patterns on the printing bedplate in a one-to-one correspondence manner;
the image acquisition device is used for acquiring each mark pattern;
the image processing device is used for selecting any one of the mark patterns as a reference pattern and determining the offset distance of the mark pattern corresponding to each printing device relative to the reference pattern;
the position adjusting mechanism adjusts the position of the screen frame according to the corresponding offset distance.
Compared with the prior art, the screen frame nesting system has the advantages that the marking patterns of the plurality of printing devices are acquired through the image acquisition device, the screen frame is automatically adjusted after the offset distance is acquired, the adjustment speed is high and accurate, the marking patterns are printed on the plurality of printing table plates, so that the camera can acquire enough large marking patterns in a small range, the accuracy of the marking patterns is improved, and the problem that the acquisition accuracy is low due to the fact that the acquisition range is expanded for the camera to acquire the plurality of marking patterns is avoided.
Further, the mark patterns correspondingly generated by different printing devices are different.
Further, the pattern of markings comprises one or more of a digital pattern, a two-dimensional code, or a geometric figure.
Further, the image processing device is configured to select any one of the mark patterns as a reference pattern, acquire center points of the mark patterns and the reference pattern, and determine an offset distance between the center point of the mark pattern corresponding to each of the printing devices and the center point of the reference pattern.
Further, the marking pattern comprises a number identification part and a position identification part, and the number identification parts correspondingly generated by different printing devices are different;
the image processing device is used for selecting any marking pattern as a reference pattern, determining the printing device corresponding to the marking pattern according to the number identification part, and determining the offset distance of the marking pattern relative to the reference pattern according to the offset of the position identification part relative to the reference pattern.
Further, the number identification part comprises a digital pattern, a two-dimensional code or a geometric figure, and the position identification part comprises a geometric figure.
Further, the image acquisition device comprises a camera arranged on the machine frame and positioned above the printing platen and a light source arranged on the machine frame and facing the printing platen.
Further, the light source is an annular light source disposed between the printing platen and the camera, and the annular light source is arranged around the marking pattern when the image capturing device captures the marking pattern.
Further, the printing device is used for printing the mark patterns on the printing stock of the printing platen in a one-to-one correspondence mode.
Further, the image acquisition device is arranged between two adjacent printing devices.
In order that the invention may be more clearly understood, specific embodiments thereof will be described hereinafter with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a frame nesting system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the configuration of a printing platen and various marking patterns according to one embodiment of the present invention;
FIG. 3 is a schematic structural view of a printing platen and a marking pattern according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an image capturing device according to another embodiment of the present invention.
Description of reference numerals:
10. a frame; 20. a printing platen; 30. a printing device; 31. a screen frame; 40. an image acquisition device; 41. a camera; 42. a light source; 50. marking a pattern; 51. a number identification part; 52. a position identification part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of a frame positioning system according to an embodiment of the present invention, the frame positioning system includes: the printing device comprises a machine frame 10, a guide rail arranged on the machine frame 10, a plurality of printing platens 20 arranged on the guide rail and driven by a driving mechanism, a plurality of printing devices 30 sequentially arranged along the guide rail, an image acquisition device 40 arranged on the machine frame 10 and an image processing device connected with the image acquisition device 40, wherein the printing devices 30 comprise a printing head and a screen frame 31 movably arranged on the machine frame 10 and a position adjusting mechanism driving the screen frame 31 to move, and the position adjusting mechanism is connected with the image processing device.
Referring to fig. 2, which is a schematic structural diagram of a printing platen and different marking patterns according to an embodiment of the present invention, the printing device 30 is used for generating the marking patterns 50 on the printing platen 20 in a one-to-one correspondence; the image acquisition device 40 is used for acquiring each mark pattern 50; the image processing device is configured to select any one of the mark patterns 50 as a reference pattern, and determine a shift distance of the mark pattern 50 corresponding to each of the printing devices 30 from the reference pattern; the position adjustment mechanism adjusts the position of the frame 31 in accordance with the corresponding offset distance.
When the screen frame 31 is registered, the printing heads of all the printing devices 30 needing to be registered generate the mark patterns 50 on the printing platens 20 through the screen frame 31, each printing device 30 corresponds to the mark pattern 50 on one printing platen 20, then each printing platen 20 sequentially goes under the image acquisition device 40, the image acquisition device 40 acquires an image with the mark pattern 50, then the image processing device selects any one of the mark patterns 50 as a reference pattern, acquires the coordinates of the reference pattern and the mark pattern 50 in the image, obtains the offset distance of the mark pattern 50 relative to the reference pattern after comparing the coordinates of the reference pattern and the mark pattern 50, except the printing device 30 corresponding to the reference pattern, after obtaining the offset distance corresponding to each printing device 30, the position adjusting mechanism corresponding to each printing device 30 adjusts the position of the screen frame 31 according to the offset distance, so that the patterns printed by the screen frame 31 of the respective printing devices 30 can be aligned without being shifted in position at the time of subsequent printing. In order to increase the adjustment speed, after all the printing devices 30 complete printing at the same time, the marking pattern 50 on the printing platen 20 which enters the capture position of the image capture device 40 at the first time can be used as a reference pattern, and when the subsequent printing platen moves and the image capture device 40 captures images, the image processing device can synchronously process the images, thereby improving the image processing efficiency and the adjustment speed of the screen frame 31.
The offset distance of the two-axis translation mechanism for adjusting the position of the screen frame 31 in the X-axis and Y-axis directions can be divided into components in the X-axis and Y-axis directions, so that the position adjusting mechanism can perform accurate adjustment according to the two components.
In some optional embodiments, the marking patterns 50 generated by different printing devices 30 are different, so that the image processing device can determine the corresponding printing device 30 according to the marking pattern 50, and after obtaining the offset distance of the marking pattern 50 from the reference pattern, the position of the screen frame 31 of the corresponding printing device 30 can be adjusted. Since there are a plurality of printing devices 30, and one frame corresponding to the printing device 30 can print only one color in actual printing, there may be printing devices 30 having different numbers and different positions, and thus the frame of the printing device 50 can be quickly adjusted corresponding to the printing device 30 by the mark pattern 50.
In some alternative embodiments, the marking pattern 50 includes one or more of a digital pattern, a two-dimensional code, or a geometric figure, and the printing devices 30 corresponding to the marking pattern 50 are distinguished by the difference of the digital pattern, the two-dimensional code, or the geometric figure, for example, 1, 2, 3, etc. of the digital pattern correspond to each printing device 30; squares, hearts, stars, circles, triangles, etc. in the geometric figure correspond to each printing device 30.
In some optional embodiments, the image processing device is configured to select any one of the mark patterns 50 as a reference pattern, obtain center points of the mark patterns 50 and the reference pattern, determine an offset distance between the center point of the mark pattern 50 corresponding to each of the printing devices 30 and the center point of the reference pattern, and facilitate identification of the position of the mark pattern 50 by identifying the center point.
Referring to fig. 3, which is a schematic structural diagram of a printing platen and a marking pattern according to another embodiment of the present invention, in some alternative embodiments, the marking pattern 50 includes a number mark portion 51 and a position mark portion 52, and the number mark portions 51 generated by different printing devices 30 are different; the image processing apparatus is configured to select any one of the mark patterns 50 as a reference pattern, determine the printing apparatus 30 corresponding to the mark pattern 50 according to the serial number identifier 51, and determine a shift distance of the mark pattern 50 from the reference pattern according to a shift amount of the position identifier 52 from the position identifier 52 of the reference pattern. Preferably, the number identification part 51 includes a number pattern, a two-dimensional code or a geometric figure, and the position identification part 52 includes a geometric figure. For example, the number marking part 51 of the marking pattern 50 may adopt a digital pattern, and the position marking part 52 may adopt a circular pattern surrounding the digital pattern, the image processing apparatus may recognize the printing apparatus 30 corresponding to the marking pattern 50 based on the digital pattern of the marking pattern 50, and then compare the position of the center point of the circular pattern of the marking pattern 50 with the position of the center point of the circular pattern of the reference pattern to obtain an offset distance, and then the position adjustment mechanism of the corresponding printing apparatus 30 may adjust the position of the screen frame 31.
Referring to fig. 4, which is a schematic structural diagram of an image capturing device according to another embodiment of the present invention, in some alternative embodiments, the image capturing device 40 includes a camera 41 disposed on the frame 10 and above the printing platen 20, and a light source 42 disposed on the frame 10 and facing the printing platen 20. Preferably, the light source 42 is a ring-shaped light source 42 disposed between the printing platen 20 and the camera 41, and when the image capturing device 40 captures the mark pattern 50, the ring-shaped light source 42 is disposed around the mark pattern 50, and usually the mark pattern 50 is printed on the printing platen 20 within a preset range, and the ring-shaped light source 42 can ensure that the light in the preset range is sufficiently uniform.
In some alternative embodiments, the printing device 30 is used to print the mark pattern 50 on the printing material of the printing platen 20 in a one-to-one correspondence, and the registration can be achieved by placing a printing material on the printing platen 20 that is dedicated to registration. Of course, during the printing process, there is usually a portion to be cut out on the printing material, and the mark pattern 50 may be printed on the portion to be cut out on the printing material in the printing process, so as to realize real-time detection of whether the position of the screen frame 31 is accurate.
In some alternative embodiments, the image capturing device 40 is disposed between two adjacent printing devices 30, and the image capturing device 40 may be disposed in front of the printing device 30 at the printing start point or behind the printing device 30 at the printing end point.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A frame nesting system, comprising: the printing device comprises a printing head and a screen frame which are movably arranged on the rack and a position adjusting mechanism for driving the screen frame to move, and the position adjusting mechanism is connected with the image processing device;
the printing device is used for generating mark patterns on the printing bedplate in a one-to-one correspondence manner;
the image acquisition device is used for acquiring each mark pattern;
the image processing device is used for selecting any one of the mark patterns as a reference pattern and determining the offset distance of the mark pattern corresponding to each printing device relative to the reference pattern;
the position adjusting mechanism adjusts the position of the screen frame according to the corresponding offset distance.
2. A frame nesting system according to claim 1, wherein: the mark patterns correspondingly generated by different printing devices are different.
3. A frame nesting system according to claim 2, wherein: the marking pattern comprises one or more of a combination of a number pattern, a two-dimensional code and a geometric figure.
4. A frame nesting system according to any one of claims 1 to 3, wherein: the image processing device is used for selecting any one of the marking patterns as a reference pattern, acquiring the marking patterns and the center points of the reference pattern, and determining the offset distance of the center point of the marking pattern corresponding to each printing device relative to the center point of the reference pattern.
5. A frame nesting system according to any one of claims 1 to 3, wherein: the marking pattern comprises a number identification part and a position identification part, and the number identification parts correspondingly generated by different printing devices are different;
the image processing device is used for selecting any marking pattern as a reference pattern, determining the printing device corresponding to the marking pattern according to the number identification part, and determining the offset distance of the marking pattern relative to the reference pattern according to the offset of the position identification part relative to the reference pattern.
6. The frame nesting system of claim 5, wherein: the number identification part comprises a digital pattern, a two-dimensional code or a geometric figure, and the position identification part comprises a geometric figure.
7. A frame nesting system according to claim 1, wherein: the image acquisition device comprises a camera arranged on the frame and positioned above the printing platen and a light source arranged on the frame and facing the printing platen.
8. The frame nesting system of claim 7, wherein: the light source is an annular light source arranged between the printing platen and the camera, and the annular light source is arranged around the mark pattern when the mark pattern is acquired by the image acquisition device.
9. A frame nesting system according to claim 1, wherein: the printing device is used for printing the mark patterns on the printing stock of the printing platen in a one-to-one correspondence mode.
10. A frame nesting system according to claim 1, wherein: the image acquisition device is arranged between two adjacent printing devices.
CN202110326383.1A 2021-03-26 2021-03-26 Net frame nesting system Withdrawn CN112937088A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110326383.1A CN112937088A (en) 2021-03-26 2021-03-26 Net frame nesting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110326383.1A CN112937088A (en) 2021-03-26 2021-03-26 Net frame nesting system

Publications (1)

Publication Number Publication Date
CN112937088A true CN112937088A (en) 2021-06-11

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CN202110326383.1A Withdrawn CN112937088A (en) 2021-03-26 2021-03-26 Net frame nesting system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113858773A (en) * 2021-11-01 2021-12-31 苏州印丝特数码科技有限公司 Cut-parts positioner of calico printing machine
CN113942292A (en) * 2021-10-08 2022-01-18 广东彩格科技有限公司 Automatic nesting printing machine and automatic nesting method
CN115008917A (en) * 2022-06-08 2022-09-06 中国人民解放军陆军工程大学 Spraying method of digital camouflage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113942292A (en) * 2021-10-08 2022-01-18 广东彩格科技有限公司 Automatic nesting printing machine and automatic nesting method
CN113858773A (en) * 2021-11-01 2021-12-31 苏州印丝特数码科技有限公司 Cut-parts positioner of calico printing machine
CN113858773B (en) * 2021-11-01 2022-11-18 苏州印丝特数码科技有限公司 Cut-parts positioner of calico printing machine
CN115008917A (en) * 2022-06-08 2022-09-06 中国人民解放军陆军工程大学 Spraying method of digital camouflage

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Application publication date: 20210611