CN1309565C - On-line automatic controlsystem for printing quality - Google Patents
On-line automatic controlsystem for printing quality Download PDFInfo
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- CN1309565C CN1309565C CNB2004100736191A CN200410073619A CN1309565C CN 1309565 C CN1309565 C CN 1309565C CN B2004100736191 A CNB2004100736191 A CN B2004100736191A CN 200410073619 A CN200410073619 A CN 200410073619A CN 1309565 C CN1309565 C CN 1309565C
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- array ccd
- printing
- ccd camera
- transfer device
- image
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- 230000000052 comparative effect Effects 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The present invention discloses an on-line automatic control system for the printing quality, which comprises an image collecting device, an image processing device, an ink transfer device and a paper transfer device, wherein the image collecting device comprises a planar array CCD cameras and a linear array CCD cameras. The linear array CCD camera is arranged beside the printing rotary drum, and the area array CCD camera is arranged below the paper transfer device. The ink distribution transfer device is provided with a local adjusting mechanism of CPC ink color and an adjusting mechanism of an ink fountain roller. The image information collected by the image collecting device is input to the image processing device and compares with the stored standard sampling image. The comparative result is used as the control signal which is conveyed to the ink transfer device to adjust the ink color. By the area array CCD camera and the linear array CCD camera, the present invention respectively collects the image information on both sides of a printed product. After the image information is processed by the image processing device, the operation of the ink transfer device is controlled. The print quality of the printed product is controlled by the combination of the integral ink transfer and the local ink transfer, and the on-line automatic control of the print quality is realized.
Description
Technical field
The present invention relates to a kind of on-line automatic controlsystem for printing quality that is applied to printing machine.
Background technology
At present generally adopt the colour code method of inspection for the detection of press printing quality, promptly at printing one side printing colour code, and by checking the colour code quality to reach the purpose of checking whole printing printing quality.Owing to rely on colour code to reflect the printing quality that the whole width range of printing is interior, therefore this method only is applicable to the situation of the whole ink supply of printing cylinder, when the ink transfer device during to the printing cylinder ink supply, then can't adopt the printing quality of this method printing product to check in the mode of regional ink transfer.In a single day in addition, the above-mentioned printing quality method of inspection belongs to postmortem, promptly can only check the printing after being completed for printing, thereby the printing quality problem occur, then mean scrapping of a collection of print product.
Summary of the invention
At the existing problem that exists, the object of the present invention is to provide a kind of On line inspection that both can carry out printing quality, the on-line automatic controlsystem for printing quality that can carry out online adjustment again according to the printing quality check result to the ink supply situation of ink spreader simultaneously.
For achieving the above object, on-line automatic controlsystem for printing quality of the present invention comprises: image collecting device, image processing apparatus, ink transfer device and paper transfer device, and the printing that prints out through printing cylinder is transported to next process by the paper transfer device; Described image collecting device comprises area array CCD camera and linear array CCD camera and the light source that matches with two cameras, area array CCD camera is arranged on the image information of following printing product one side of paper transfer device and gathers, and linear array CCD camera is arranged on the image information of the other printing product opposite side of impression cylinder and gathers; Described image processing apparatus stores standard specimen page image; Described ink transfer device has mass colour local modulation mechanism and ink foundation roller governor motion; The image information input image processing unit that described area array CCD camera and linear array CCD camera are gathered, by with after described standard specimen page image is compared, comparative result is transferred to as control signal carries out mass colour with the mass colour local modulation mechanism of the corresponding one side of printing and ink foundation roller governor motion and regulate; Below the described paper transfer device adsorption plate is set also, adsorption hole gathers on this adsorption plate, adsorption hole joins by pipeline and air intake device, also has several and the perforate that the image size on the printing is fitted mutually on the described adsorption plate, and described area array CCD camera is arranged on each tapping one by one.
Further, described perforate interlaces and is distributed on the described adsorption plate.
The present invention gathers the image information on printing two sides respectively by area array CCD camera and linear array CCD camera, after image processing apparatus is handled the image information that collects, according to result the work of ink transfer device is controlled, not only having reached whole ink transfer and local ink transfer combines and controls the printing quality of printing, make printing have higher symbol sample and conforming purpose, also realized the automatic control that printing quality is online.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 is position and the structural representation of the present invention in money press;
Fig. 3 is the structural representation of adsorbent equipment among Fig. 2.
The specific embodiment:
As shown in Figure 1, linear array CCD camera and area array CCD camera are transferred to image processing apparatus after gathering image information, contain standard specimen page image information in the image processing apparatus, by the image information and the contrast of standard specimen page image information of will be gathered, comparative result is fed back to ink foundation roller governor motion and mass colour local modulation mechanism as control signal mass colour is carried out whole and local adjustment respectively, thereby realize the on-line automatic control of printing quality of printing.
As Fig. 2, shown in Figure 3, printing 1 is transported to next process by paper transfer device 3 after being sent to printing cylinder 2 and printed by sheet feeding-device.Linear array CCD camera 5 and lighting source 7 are positioned at the next door of printing cylinder 2, because the linear flatness of printing 1 its surperficial width during through printing cylinder 2 is better when other positions than printing 1, therefore adopt picture quality that linear array CCD camera 5 collects at this position than the picture quality height that collects at other positions.Adsorption plate 4 is positioned at the bottom of paper transfer device 3, have 5 perforates 10 suitable mutually on the adsorption plate 4 with printing 1 image size, these perforates 10 are interspersed on adsorption plate 4, area array CCD camera 6 and lighting source 8 are installed in these perforate 10 places one by one, the upper surface of adsorption plate 4 also is densely covered with some adsorption holes 9, and these adsorption holes 9 join by pipeline and air intake device.When paper transfer device 3 transported printing 1 through adsorption plate 4, printing 1 was close to the surface of adsorption plate 4 and is moved, thereby has guaranteed the planarization of printing 1, was convenient to area array CCD camera 6 and gathered image information.The image information of being gathered by linear array CCD camera and area array CCD camera is transferred to image processing apparatus, compare with the standard specimen page image of being stored in the image processing apparatus, result after will contrasting then feeds back to the ink foundation roller governor motion as control signal and mass colour local modulation mechanism carries out integral body and local the adjustment respectively to mass colour, thereby realizes the On-line Control of printing 1 printing quality.
Claims (2)
1, a kind of on-line automatic controlsystem for printing quality is characterized in that, comprising: image collecting device, image processing apparatus, ink transfer device and paper transfer device, and the printing that prints out through printing cylinder is transported to next process by the paper transfer device; Described image collecting device comprises area array CCD camera and linear array CCD camera and the light source that matches with two cameras, area array CCD camera is arranged on the image information of following printing product one side of paper transfer device and gathers, and linear array CCD camera is arranged on the image information of the other printing product opposite side of impression cylinder and gathers; Described image processing apparatus stores standard specimen page image; Described ink transfer device has mass colour local modulation mechanism and ink foundation roller governor motion; The image information input image processing unit that described area array CCD camera and linear array CCD camera are gathered, by with after described standard specimen page image is compared, comparative result is transferred to as control signal carries out mass colour with the mass colour local modulation mechanism of the corresponding one side of printing and ink foundation roller governor motion and regulate; Below the described paper transfer device adsorption plate is set also, adsorption hole gathers on this adsorption plate, adsorption hole joins by pipeline and air intake device, also has several and the perforate that the image size on the printing is fitted mutually on the described adsorption plate, and described area array CCD camera is arranged on each tapping one by one.
2, a kind of on-line automatic controlsystem for printing quality according to claim 1 is characterized in that, described perforate interlaces and is distributed on the described adsorption plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100736191A CN1309565C (en) | 2004-09-02 | 2004-09-02 | On-line automatic controlsystem for printing quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100736191A CN1309565C (en) | 2004-09-02 | 2004-09-02 | On-line automatic controlsystem for printing quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586892A CN1586892A (en) | 2005-03-02 |
| CN1309565C true CN1309565C (en) | 2007-04-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100736191A Expired - Fee Related CN1309565C (en) | 2004-09-02 | 2004-09-02 | On-line automatic controlsystem for printing quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1309565C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943666A (en) * | 2010-08-12 | 2011-01-12 | 中国印钞造币总公司 | Novel presswork sample conformity evaluation method and corresponding device |
| CN103895343B (en) * | 2012-12-26 | 2017-12-19 | 北京大学 | A kind of printed article detection method for quality and system |
| CN103472068B (en) * | 2013-08-16 | 2015-11-18 | 唐汉章 | Equipment and method for visual detection of ink color change and mechanical arm adjustment |
| DE102014108325A1 (en) | 2013-12-20 | 2015-06-25 | Manroland Web Systems Gmbh | Method and device for markless control and regulation of a digital printing process |
| CN103743748A (en) * | 2013-12-31 | 2014-04-23 | 江苏大学 | Rapid and low-cost machine vision online detection system |
| CN103879142B (en) * | 2014-02-21 | 2016-06-08 | 南通大学 | Embedded screen decorating machine printing quality automatic checkout system |
| CN106218217B (en) * | 2016-07-20 | 2018-11-16 | 长兴佳迪嘉科技有限公司 | Novel ink-scraping device |
| CN109624502B (en) * | 2018-12-12 | 2020-10-27 | 陕西东风海印刷有限公司 | Efficient low-loss printed product production system and method |
| CN109664611B (en) * | 2018-12-12 | 2020-11-17 | 浙江新中商务印刷有限公司 | Printing machine |
| CN113063787A (en) * | 2020-01-02 | 2021-07-02 | 南京造币有限公司 | Paper biting quality on-line detection device |
| CN113360278B (en) * | 2021-05-31 | 2024-05-03 | 南昌印钞有限公司 | Banknote character evaluation method, system, computer device and readable storage medium |
| CN113436196B (en) * | 2021-08-27 | 2021-12-10 | 广州市雄星塑料制品有限公司 | Two-dimensional code film production management system based on image recognition technology |
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|---|---|---|---|---|
| CN1162141A (en) * | 1996-03-22 | 1997-10-15 | 吉奥里大街公司 | Method for automatically detecting printing quality of colour picture |
| US5774225A (en) * | 1996-03-27 | 1998-06-30 | Advanced Vision Technology, Ltd. | System and method for color measurement and control on-press during printing |
| CN1198710A (en) * | 1996-06-18 | 1998-11-11 | 柯尼格及包尔-艾伯特公开股份有限公司 | Apparatus and method for quality assessment of printed sheets |
| CN1294720A (en) * | 1999-02-09 | 2001-05-09 | 穆尔北美公司 | Variable printing system and method with optical feedback |
| US6497522B2 (en) * | 2000-04-17 | 2002-12-24 | Hewlett-Packard Company | Edge lift reduction for belt type transports |
| US6634297B2 (en) * | 2001-03-27 | 2003-10-21 | Windmoeller & Hoelscher Kg | Device and process for setting the printed image in a flexographic press |
-
2004
- 2004-09-02 CN CNB2004100736191A patent/CN1309565C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162141A (en) * | 1996-03-22 | 1997-10-15 | 吉奥里大街公司 | Method for automatically detecting printing quality of colour picture |
| US5774225A (en) * | 1996-03-27 | 1998-06-30 | Advanced Vision Technology, Ltd. | System and method for color measurement and control on-press during printing |
| CN1198710A (en) * | 1996-06-18 | 1998-11-11 | 柯尼格及包尔-艾伯特公开股份有限公司 | Apparatus and method for quality assessment of printed sheets |
| CN1294720A (en) * | 1999-02-09 | 2001-05-09 | 穆尔北美公司 | Variable printing system and method with optical feedback |
| US6497522B2 (en) * | 2000-04-17 | 2002-12-24 | Hewlett-Packard Company | Edge lift reduction for belt type transports |
| US6634297B2 (en) * | 2001-03-27 | 2003-10-21 | Windmoeller & Hoelscher Kg | Device and process for setting the printed image in a flexographic press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1586892A (en) | 2005-03-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Inst. of Printing Science, Peolpe's Bank of China Assignor: China banknote printing and Minting Corporation Contract fulfillment period: 2008.11.11 to 2013.11.10 Contract record no.: 2008110000159 Denomination of invention: On-line automatic controlsystem for printing quality Granted publication date: 20070411 License type: Exclusive license Record date: 20081205 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.11 TO 2013.11.10; CHANGE OF CONTRACT Name of requester: PEOPLE'S BANK OF CHINA SCIENCE PRINTING TECHNOLOGY Effective date: 20081205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070411 Termination date: 20190902 |
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| CF01 | Termination of patent right due to non-payment of annual fee |