CN109781741A - A kind of picture on surface detection method of printed matter - Google Patents
A kind of picture on surface detection method of printed matter Download PDFInfo
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- CN109781741A CN109781741A CN201910043359.XA CN201910043359A CN109781741A CN 109781741 A CN109781741 A CN 109781741A CN 201910043359 A CN201910043359 A CN 201910043359A CN 109781741 A CN109781741 A CN 109781741A
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- picture
- printed matter
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- image
- detection method
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Abstract
The invention discloses a kind of picture on surface detection methods of printed matter, for detecting the picture on surface of the printed matter after dyeing in transmission process with the presence or absence of flaw, the following steps are included: (1) passes through fixed stroboscopic light irradiation printed matter, and the frequency of fixed stroboscopic lamp is adjusted, picture still is made or is moved with the speed of setting；(2) printed matter is shot by picture pick-up device, and the picture signal of shooting is sent into display equipment, show the image of corresponding image signals in the display device；(3) it is counted by the length that sensor for countering transmits printed matter；(4) it observes picture respectively and image determines position of the flaw on printed matter according to sensor for countering when observing flaw from picture or image.A kind of picture on surface detection method of printed matter of the present invention can accurately detect the flaw that printed matter surface occurs, and prevent missing inspection, and accuracy in detection is high, and detection efficiency is high；It can determine the position of flaw, simultaneously convenient for being handled in time.
Description
Technical field
The present invention relates to a kind of picture on surface detection methods of printed matter.
Background technique
In printed patterns on printed matter, it inevitably will appear flaw.Since the transmission speed of printed matter is very fast, nothing
Method determines whether its surface flaw occurs by directly observing.
Summary of the invention
The object of the present invention is to provide a kind of picture on surface detection methods of printed matter, can accurately detect printed matter
The flaw that surface occurs, accuracy in detection is high, and detection efficiency is high.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of picture on surface detection method of printed matter, the picture on surface for detecting the printed matter after dyeing in transmission process are
It is no that there are flaws, comprising the following steps:
(1) by fixed stroboscopic light irradiation printed matter, and adjust the frequency of the fixed stroboscopic lamp, make picture still or with
The speed of setting moves；
(2) printed matter is shot by picture pick-up device, and the picture signal of shooting is sent into display equipment, in the display equipment
The middle image for showing corresponding described image signal；
(3) it is counted by the length that sensor for countering transmits printed matter；
(4) picture and image are observed respectively, when observing flaw from picture or image, are determined according to the sensor for countering
Position of the flaw on printed matter.
Preferably, the fixed stroboscopic lamp and the picture pick-up device are used to detect printed matter in its transmission direction not
Same position.
Preferably, standard pattern is stored in the display equipment, and image and standard pattern is compared.
It is highly preferred that automatically image and standard pattern is compared by program, and issue alarm when there is flaw
Signal.
Preferably, when occur in picture or image one of ink dot, knife silk, white point, colour cast, chromatography or more than one
When, determine that there are flaws.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: a kind of print of the present invention
The picture on surface detection method of brush product can be accurately by combining fixed stroboscopic light irradiation with picture pick-up device shooting
It detects the flaw that printed matter surface occurs, prevents missing inspection, accuracy in detection is high, and detection efficiency is high；Sensing is counted by setting
Device can determine the position of flaw, convenient for being handled in time.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to specific embodiment.
The picture on surface detection method of above-mentioned a kind of printed matter, for detecting the table of the printed matter after dyeing in transmission process
Face pattern whether there is flaw, comprising the following steps:
(1) fixed stroboscopic lamp is set, by fixed stroboscopic light irradiation printed matter, and adjusts the frequency of fixed stroboscopic lamp,
Needs according to the observation, the picture still made or the speed uniform motion with setting；
(2) picture pick-up device is set, picture pick-up device and fixed stroboscopic lamp is made to be used to detect printed matter in its transmission direction not
Same position；Printed matter is shot by picture pick-up device, and the picture signal of shooting is sent into display equipment, is shown in the display device
Show the image of corresponding image signals；
Standard pattern is stored in the display device, and image and standard pattern are compared；In the present embodiment, pass through program
Automatically image and standard pattern are compared, and issues alarm signal when there is flaw；
(3) it is counted and is counted by the length that sensor for countering transmits printed matter；To obtain real-time pictures and in real time
The corresponding numerical value of image, i.e. real-time pictures and realtime graphic are located at the position on printed matter；
(4) picture and image are observed respectively, when occurring one of ink dot, knife silk, white point, colour cast, chromatography in picture or image
Or more than one when, determining it, there are flaws；
When observing flaw from picture or image, position of the flaw on printed matter is determined according to sensor for countering, is found
The flaw is simultaneously handled it.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (5)
1. a kind of picture on surface detection method of printed matter, for detecting the picture on surface of the printed matter after dyeing in transmission process
With the presence or absence of flaw, it is characterised in that: the following steps are included:
(1) by fixed stroboscopic light irradiation printed matter, and adjust the frequency of the fixed stroboscopic lamp, make picture still or with
The speed of setting moves；
(2) printed matter is shot by picture pick-up device, and the picture signal of shooting is sent into display equipment, in the display equipment
The middle image for showing corresponding described image signal；
(3) it is counted by the length that sensor for countering transmits printed matter；
(4) picture and image are observed respectively, when observing flaw from picture or image, are determined according to the sensor for countering
Position of the flaw on printed matter.
2. a kind of picture on surface detection method of printed matter according to claim 1, it is characterised in that: the fixed frequency
Flashing light and the picture pick-up device are for detecting different location of the printed matter in its transmission direction.
3. a kind of picture on surface detection method of printed matter according to claim 1, it is characterised in that: set in the display
Standby middle storage standard pattern, and image and standard pattern are compared.
4. a kind of picture on surface detection method of printed matter according to claim 3, it is characterised in that: automatic by program
Image and standard pattern are compared, and issue alarm signal when there is flaw.
5. a kind of picture on surface detection method of printed matter according to claim 1, it is characterised in that: when picture or image
In occur one of ink dot, knife silk, white point, colour cast, chromatography or more than one when, determine there are flaws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043359.XA CN109781741A (en) | 2019-01-17 | 2019-01-17 | A kind of picture on surface detection method of printed matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043359.XA CN109781741A (en) | 2019-01-17 | 2019-01-17 | A kind of picture on surface detection method of printed matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109781741A true CN109781741A (en) | 2019-05-21 |
Family
ID=66500906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910043359.XA Pending CN109781741A (en) | 2019-01-17 | 2019-01-17 | A kind of picture on surface detection method of printed matter |
Country Status (1)
| Country | Link |
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| CN (1) | CN109781741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117549666A (en) * | 2023-12-27 | 2024-02-13 | 广州市普理司科技有限公司 | Control system of reverse detection quality control machine |
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| CN206208781U (en) * | 2016-12-01 | 2017-05-31 | 佛山市南海正彩塑料包装有限公司 | A kind of stroboscopic detecting system of packaging film printing |
| CN207366475U (en) * | 2017-09-28 | 2018-05-15 | 蚌埠金黄山凹版印刷有限公司 | A kind of relief pattern Online Video detection device |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158650A (en) * | 2007-11-09 | 2008-04-09 | 无锡东望科技有限公司 | On-line detecting method of machine vision system for printed calico flaw |
| CN101545869A (en) * | 2009-04-23 | 2009-09-30 | 轻工业自动化研究所 | Embedded machine vision printing quality intelligent detecting system |
| CN203637339U (en) * | 2013-11-07 | 2014-06-11 | 浙江彩通印刷包装有限公司 | Image observing system for playing card gravure |
| CN203838076U (en) * | 2013-12-24 | 2014-09-17 | 北京慧眼智行科技有限公司 | Printing detection system |
| CN203974230U (en) * | 2014-03-07 | 2014-12-03 | 潍坊东航印刷科技股份有限公司 | A kind of multi-joint document printing machine image detection device |
| CN204749509U (en) * | 2015-07-06 | 2015-11-11 | 浙江荣丰纸业有限公司 | Lithography apparatus on -line measuring device |
| CN206208781U (en) * | 2016-12-01 | 2017-05-31 | 佛山市南海正彩塑料包装有限公司 | A kind of stroboscopic detecting system of packaging film printing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117549666A (en) * | 2023-12-27 | 2024-02-13 | 广州市普理司科技有限公司 | Control system of reverse detection quality control machine |
| CN117549666B (en) * | 2023-12-27 | 2024-04-12 | 广州市普理司科技有限公司 | Control system of reverse detection quality control machine |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |
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| RJ01 | Rejection of invention patent application after publication |