EP0987110B1 - Procédé pour évaluer la qualité d'un matériau traité - Google Patents
Procédé pour évaluer la qualité d'un matériau traité Download PDFInfo
- Publication number
- EP0987110B1 EP0987110B1 EP99118436A EP99118436A EP0987110B1 EP 0987110 B1 EP0987110 B1 EP 0987110B1 EP 99118436 A EP99118436 A EP 99118436A EP 99118436 A EP99118436 A EP 99118436A EP 0987110 B1 EP0987110 B1 EP 0987110B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- counter
- error
- sheets
- count
- inspected
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
Definitions
- the invention relates to methods for qualitative Evaluation of processed material according to the Preamble of claim 1.
- DE-OS 23 38 849 describes a method for Finding defects in rolled steel surfaces. there those errors are identified that a certain Show periodicity.
- DE 41 29 126 A1 discloses a method for Detection of defects in a textile web. The number of consecutive errors added. If a faultless product occurs the counter reading is reset to zero.
- the invention has for its object a method for the qualitative assessment of processed material to accomplish.
- a processing machine for example a rotary printing machine, is provided with a device for the qualitative assessment of processed material.
- This material can be printed sheets or webs, for example.
- sheets of paper are printed using the steel engraving process and then assessed qualitatively inline.
- the rotary printing press can be, for example, a steel engraving printing press known from EP 04 06 157 B1.
- picture elements of a sheet to be checked are compared with stored picture elements of so-called "master" sheets. If one or more measured values lie outside a predetermined tolerance of the corresponding measured values of the "master” sheets, an error is detected. This error can now be indicated optically or acoustically by means of a first warning signal.
- the corresponding sheet with an error can also be marked or sorted out.
- a counter is fed a signal for the defective sheet, whereby the counter reading of a counting unit, e.g. B. is increased by one. If one or more defective sheets follow directly on the defective sheet, the counter reading of the counter is increased by one for each defective sheet. The counter only adds the counter reading by one counter unit, e.g. B. one up. If an error-free sheet is detected after a defective sheet, a signal for the error-free sheet is fed to the counter. B. one is reduced. Now follow more error-free
- the counter reading is reduced by one for each error-free sheet. If the counter reading has reached a lower limit, for example the value 0, no further downward counting takes place.
- the counter reading is thus changed step by step according to the number of inspected, faulty and error-free sheets. This procedure takes place within a range of the counter reading from a lower limit, e.g. B. zero, up to a definable (selectable), upper limit of the counter reading. If this limit value is reached, a second warning signal is triggered and, for example, fed to the machine control. This signal can, for example, cause the speed of the rotary printing press to be reduced or the rotary printing press to be switched off.
- This procedure is based on the total number of inspecting sheet applicable.
- the sheets to be inspected are often processed in machines in which cyclical errors can occur. This is the case, for example, when the sheets to be inspected are printed using a rotary printing press known from EP 04 06 157 B1.
- This rotary printing press has a plate cylinder which is provided with three printing plates, each having an identical printing form. The non-printing areas of these printing plates are cleaned by a common wiper device after inking.
- This wiping device consists, among other things, of a wiping cylinder operated under pressure. If, for example, one of the three pressure plates is damaged or is partially a little lower, the wiper device does not completely clean this area. Therefore, every third sheet of all sheets produced would have a toning area. Toning areas can also only occur for a limited time, for example by slugs which are removed by the wiping device.
- each printing plate is assigned its own counter. This counter is synchronized with the printing press and the inspection device in such a way that a signal of an error-free or defective sheet printed on a specific printing plate is fed to the counter assigned to this printing plate. Each counter assigned to a printing plate is therefore only supplied with signals from the sheets printed and inspected by means of this associated printing plate.
- This particular counter can work according to the following simple principle: If a faulty sheet is detected, a signal is fed to the respective counter, whereby the counter reading is increased by one counting unit, e.g. B. one is increased. This is done for successive sheets up to a preselectable limit. However, by detecting a faultless sheet, the counter reading is reset to zero and only when the faulty sheet occurs again does the counting start. If this limit value is reached, a second warning signal is issued, which is forwarded, for example, to the machine control for triggering further processes.
- one counting unit e.g. B. one is increased. This is done for successive sheets up to a preselectable limit.
- the counter reading is reset to zero and only when the faulty sheet occurs again does the counting start. If this limit value is reached, a second warning signal is issued, which is forwarded, for example, to the machine control for triggering further processes.
- the method described at the outset is also used for counting these cyclically occurring errors. Accordingly, the counting up and down is carried out step by step according to the number of faulty and faultless sheets.
- This counting of cyclical errors is not just that described example of plate cylinders with several Printing plates limited, taking cyclical errors successive sheets or reports of the web can be detected. There are also other use cases possible. Relevant possible sources of error are that generate a cyclical error, at least one own counter assigned.
- Step size not equal to one it is also possible to count in other counter units or step sizes (i.e. Step size not equal to one) and with other limit values perform.
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Facsimiles In General (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Claims (5)
- Procédé pour évaluer la qualité d'un matériau imprimé, au moyen d'un capteur photoélectrique et d'un dispositif d'évaluation coopérant avec celui-ci, caractérisé en ce qu'une zone d'image du matériau inspecté est appréhendée, de façon associée à un compteur, en ce qu'on effectue un comptage ascendant et descendant d'un état de comptage du compteur, lorsque la zone d'image ayant été inspectée, est entachée de défaut et exempte de défaut.
- Procédé selon la revendication 1, caractérisé en ce que l'état de comptage du compteur a augmenté d'une unité de comptage, lorsque la zone d'image est entachée de défaut, et en ce que l'état de comptage du compteur a diminué d'une unité de comptage, lorsque la zone inspectée est exempte de défaut.
- Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'état de comptage n'est diminué que jusqu'à une valeur limite inférieure.
- Procédé selon l'une des revendications 1 ou 2, caractérisé en ce qu'un signal est déclenché à l'atteinte d'une valeur limite supérieure de l'état de comptage.
- Procédé selon la revendication 1, caractérisé en ce qu'on fixe comme zone d'image une feuille entière ou bien un rapport d'une bande.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613083A DE19613083A1 (de) | 1996-04-02 | 1996-04-02 | Verfahren zur qualitativen Beurteilung von bearbeitetem Material |
DE19613083 | 1996-04-02 | ||
EP97920565A EP0892722B1 (fr) | 1996-04-02 | 1997-04-01 | Procede pour evaluer la qualite d'un materiau traite |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97920565A Division EP0892722B1 (fr) | 1996-04-02 | 1997-04-01 | Procede pour evaluer la qualite d'un materiau traite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0987110A1 EP0987110A1 (fr) | 2000-03-22 |
EP0987110B1 true EP0987110B1 (fr) | 2002-01-16 |
Family
ID=7790212
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99118436A Expired - Lifetime EP0987110B1 (fr) | 1996-04-02 | 1997-04-01 | Procédé pour évaluer la qualité d'un matériau traité |
EP97920565A Expired - Lifetime EP0892722B1 (fr) | 1996-04-02 | 1997-04-01 | Procede pour evaluer la qualite d'un materiau traite |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97920565A Expired - Lifetime EP0892722B1 (fr) | 1996-04-02 | 1997-04-01 | Procede pour evaluer la qualite d'un materiau traite |
Country Status (6)
Country | Link |
---|---|
US (1) | US6333987B1 (fr) |
EP (2) | EP0987110B1 (fr) |
JP (1) | JPH11507305A (fr) |
DE (3) | DE19613083A1 (fr) |
ES (2) | ES2170563T3 (fr) |
WO (1) | WO1997036749A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10049752A1 (de) | 1999-10-11 | 2001-05-10 | Heidelberger Druckmasch Ag | Verfahren zur Erkennung der Lagegenauigkeit von Register und Falz-oder Schneidkanten an flachen Exemplaren |
US7656930B2 (en) * | 2001-09-10 | 2010-02-02 | Digimarc Corporation | Assessing quality of service using digital watermark information |
US20020146120A1 (en) * | 2001-04-05 | 2002-10-10 | Hugh Anglin | Inspecting print quality using digital watermarks |
ATE409584T1 (de) * | 2004-03-23 | 2008-10-15 | Koenig & Bauer Ag | Verfahren zur identifikation eines einzelnen nutzens mit einem druckbild von fehlerhafter qualität auf einem bedruckstoff mit mehreren nutzen |
DE102004052181B3 (de) * | 2004-07-23 | 2006-01-19 | Koenig & Bauer Ag | Verfahren zur Erkennung eines Bahnrisses einer in einer Rollendruckmaschine bedruckten Materialbahn |
EP2492094A1 (fr) * | 2011-02-25 | 2012-08-29 | Bobst Bielefeld GmbH | Appareil et procédé de vérification des couleurs |
DE102013108485B4 (de) * | 2013-08-06 | 2015-06-25 | Khs Gmbh | Vorrichtung und Verfahren zum Fehlertracking bei Bandmaterialien |
EP3668649B1 (fr) * | 2017-08-15 | 2022-03-02 | The General Hospital Corporation | Dispositif microfluidique |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5213952B2 (fr) | 1972-07-31 | 1977-04-18 | ||
DE3248928T1 (de) * | 1981-07-29 | 1983-07-07 | Dai Nippon Insatsu K.K., Tokyo | Druck-inspektionsverfahren und vorrichtung zur durchfuehrung des verfahrens |
US4677680A (en) * | 1982-08-31 | 1987-06-30 | Dai Nippon Insatsu Kabushiki Kaisha | Method and device for inspecting image |
DE3481595D1 (de) | 1983-06-02 | 1990-04-19 | Wales R Langdon | Registerregelung in geschlossener schleife. |
US4736446A (en) * | 1985-03-29 | 1988-04-05 | Quad-Tech Inc. | Cutoff control system |
JPH0674112B2 (ja) | 1986-04-23 | 1994-09-21 | 三菱重工業株式会社 | シート状の紙の自動選別装置 |
ATE105774T1 (de) * | 1989-06-29 | 1994-06-15 | De La Rue Giori Sa | Tiefdruckmaschine zum drucken von wertpapieren. |
DE4124397A1 (de) * | 1990-07-23 | 1992-04-02 | Lehner Rolf Peter | Verfahren zum erkennen von fehlern in bedruckten bahnen |
JP2931109B2 (ja) | 1990-12-25 | 1999-08-09 | 東芝機械株式会社 | 印刷物監視装置 |
US5187376A (en) | 1990-12-20 | 1993-02-16 | Toshiba Kikai Kabushiki Kaisha | Print monitoring apparatus with data processing |
EP0540833B1 (fr) | 1991-08-12 | 1997-04-23 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | ContrÔle de qualité d'une image, par exemple un modèle imprimé |
DE4142481A1 (de) * | 1991-08-12 | 1993-02-18 | Koenig & Bauer Ag | Qualitaetskontrolle einer bildvorlage z. b. eines gedruckten musters |
DE4129126A1 (de) | 1991-09-02 | 1993-03-04 | Memminger Iro Gmbh | Verfahren zum feststellen von fehlern in einer textilen warenbahn |
CH687138A5 (fr) | 1992-02-07 | 1996-09-30 | Bobst Sa | Dispositif de détection d'erreurs d'impression dans une machine à imprimer rotative. |
US5305392A (en) * | 1993-01-11 | 1994-04-19 | Philip Morris Incorporated | High speed, high resolution web inspection system |
DE4321177A1 (de) * | 1993-06-25 | 1995-01-05 | Heidelberger Druckmasch Ag | Vorrichtung zur parallelen Bildinspektion und Farbregelung an einem Druckprodukt |
DE4432371B4 (de) | 1994-09-12 | 2004-12-09 | Heidelberger Druckmaschinen Ag | Verfahren zum Drucken und Weiterverarbeiten von Nutzen |
US5908541A (en) * | 1997-09-09 | 1999-06-01 | Elcorsy Technology Inc. | Multicolor electrocoagulation printing method and apparatus |
-
1996
- 1996-04-02 DE DE19613083A patent/DE19613083A1/de not_active Withdrawn
-
1997
- 1997-04-01 DE DE59706033T patent/DE59706033D1/de not_active Expired - Lifetime
- 1997-04-01 EP EP99118436A patent/EP0987110B1/fr not_active Expired - Lifetime
- 1997-04-01 EP EP97920565A patent/EP0892722B1/fr not_active Expired - Lifetime
- 1997-04-01 WO PCT/DE1997/000655 patent/WO1997036749A1/fr active IP Right Grant
- 1997-04-01 JP JP9534826A patent/JPH11507305A/ja active Pending
- 1997-04-01 ES ES99118436T patent/ES2170563T3/es not_active Expired - Lifetime
- 1997-04-01 ES ES97920565T patent/ES2165605T3/es not_active Expired - Lifetime
- 1997-04-01 DE DE59705282T patent/DE59705282D1/de not_active Expired - Fee Related
- 1997-04-01 US US09/147,072 patent/US6333987B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59706033D1 (de) | 2002-02-21 |
US6333987B1 (en) | 2001-12-25 |
ES2165605T3 (es) | 2002-03-16 |
ES2170563T3 (es) | 2002-08-01 |
EP0892722B1 (fr) | 2001-11-07 |
DE59705282D1 (de) | 2001-12-13 |
JPH11507305A (ja) | 1999-06-29 |
DE19613083A1 (de) | 1997-10-09 |
EP0987110A1 (fr) | 2000-03-22 |
EP0892722A1 (fr) | 1999-01-27 |
WO1997036749A1 (fr) | 1997-10-09 |
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