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 PDF

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Publication number
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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CN
China
Prior art keywords
picture
printed matter
image
flaw
detection
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.)
Pending
Application number
CN201910043359.XA
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Chinese (zh)
Inventor
池克宇
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.)
ZHANGJIAGANG YONGHE PACKING PRINTING CO Ltd
Original Assignee
ZHANGJIAGANG YONGHE PACKING PRINTING 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 ZHANGJIAGANG YONGHE PACKING PRINTING CO Ltd filed Critical ZHANGJIAGANG YONGHE PACKING PRINTING CO Ltd
Priority to CN201910043359.XA priority Critical patent/CN109781741A/en
Publication of CN109781741A publication Critical patent/CN109781741A/en
Pending legal-status Critical Current

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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

A kind of picture on surface detection method of printed matter
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.
CN201910043359.XA 2019-01-17 2019-01-17 A kind of picture on surface detection method of printed matter Pending CN109781741A (en)

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
CN (1) CN109781741A (en)

Citations (9)

* Cited by examiner, † Cited by third party
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
CN106556611A (en) * 2016-12-07 2017-04-05 江苏唯侓机器人科技有限公司 Chromatograp defect automatic checkout system and detection method based on machine vision
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
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
CN106556611A (en) * 2016-12-07 2017-04-05 江苏唯侓机器人科技有限公司 Chromatograp defect automatic checkout system and detection method based on machine vision
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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