WO2004096547A2 - Systeme zur inspektion eines druckbildes - Google Patents
Systeme zur inspektion eines druckbildes Download PDFInfo
- Publication number
- WO2004096547A2 WO2004096547A2 PCT/EP2004/050662 EP2004050662W WO2004096547A2 WO 2004096547 A2 WO2004096547 A2 WO 2004096547A2 EP 2004050662 W EP2004050662 W EP 2004050662W WO 2004096547 A2 WO2004096547 A2 WO 2004096547A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- area
- evaluation unit
- display
- display device
- Prior art date
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 systems for inspecting a printed image according to the preamble of claim 1, 2, 3 or 4.
- EP 0 554 811 A1 discloses a device for detecting printing errors or other errors in a printing machine, wherein at least two cameras with a different image resolution at the output of the printing process in the production direction of a web or a sheet are arranged one behind the other and their respective output signal to a computer with a screen and a keyboard being connected to the computer, wherein the first camera in the production direction, preferably a line scan camera synchronized in its image recording with the production speed of the printing press, has a coarser resolution than the subsequent second camera, preferably a CCD area camera, wherein the image of the unprinted or uniformly printed zones of the web or the sheet, which is recorded in the direction of production of the first camera, steers the second camera in the direction of production through its displacement transversely to the direction of production No longer systematically record these zones, but to record high-resolution images of zones in which the first camera in the production direction has already detected an error, wherein an image taken by the first camera or by the second camera can be displayed on the screen and is comparable by
- a system for operating a printing machine is known from EP 1 291 767 A2, wherein two different applications are simultaneously displayed in two differently sized windows on a monitor assigned to the printing machine, wherein one of the windows has an original of the printing original and functions in the other window are shown for operating the printing press. 2004-04-30
- US2002 / 0029703 A1 discloses an apparatus for controlling a printing press, wherein various control information and status information relating to the printing is displayed on a monitor of a personal computer, the status information being represented with reference to printed pages in the form of symbols.
- DE 43 21 179 A1 discloses a method and a device for controlling or regulating operations of a printing machine are known, wherein at least one image pickup device is directed to the surface of a printed product, wherein the image pickup device reproducing their surface of the printed image information of a control and Feeds control circuit and wherein on a screen connected to the control and regulating circuit, either individually or in sub-images, a target image, an actual image and a differential image can be displayed, wherein at a determined by a comparator of the control and regulating circuit impermissible deviation of the actual image from the target image, an error signal can be output.
- the helm belongs to a computerized system for quality control and quality control of printed matter produced by a printing press.
- the control station has in a console or belonging to the control station keyboard u. a. a variety of different controls for controlling an arranged in the printing press Farbdosiersystems.
- the quality control is carried out densitometrically or spectrophotometrically.
- the control station offers a printer the possibility of checking printed copies taken from current production and of making corrections deemed necessary by operating control elements.
- the invention has for its object to provide systems for inspecting a printed image. 2004-04-30
- the achievable with the present invention consist in particular that a working during production without specimen removal system for inspection of a printed image is provided in its Parametherung and In his user interface flexible and application-related preferably alone with integrated in the display area input device and adjustable is comfortable to use. All information required for a particular user group is clearly structured and clearly displayed on the same display area.
- the system is easily expandable to perform control tasks. Defects in the quality of print images produced by the system during the inspection are displayed and preferably logged during the inspection and, if necessary, automatically lead to the marking or ejection of these deficient printed images by the system.
- the single FIGURE shows a highly simplified representation of a display device 01, an evaluation unit 02, an image sensor 03 and several with a printing machine 06 applied to a print carrier 07 printed images 04.
- the printing machine 06 is z. B. as a rotary printing machine with at least one printing unit, wherein the printing unit has at least one at least one printing plate-carrying forme cylinder (not shown) and cooperating with the forme cylinder Ubertragungszylinder 21.
- the Ubertragungszylinder 21 is employed against a parallel to its axis A impression cylinder 22, wherein the impression cylinder 22 may be formed as a second Ubertragungszylinder, which in turn cooperates with at least one associated therewith another forme cylinder (not shown).
- Ubertragungszylinder 21 per revolution in the direction of its circumference U two printed images 04 in succession, wherein in its axial direction three printed images 04 are arranged side by side, so per revolution of the transfer cylinder 21 in its direction of production P on the in the transport direction T between the transfer cylinder 21 and the impression cylinder 22 passed Print carrier 07 a total of six printed images 04 are applied.
- the print carrier 07 is z. As a sheet 07 or a web of material 07, preferably a web 07.
- the printing machine 06 prints either on a continuous web 07 in the transport direction T successive sequence of printed images 04 or printed a sequence of printed sheets 07 each with at least one print image 04 , wherein the printed sheets 07 are transported in the transport direction T.
- the image sensor 03 z. B. a color camera 03, preferably a digital semiconductor camera 03 with at least one CCD chip, is directed with its image pickup area 23 on the print substrate 07, wherein the image pickup area 23 of the image sensor 03 at least partially images a printed image 07 applied to the print substrate 04.
- the image sensor 03 is arranged, for example, at the output of the last printing unit of the printing press 06 in the direction of transport T of the print carrier 07.
- the image sensor 03 detects z. B. the entire width B of the print carrier 07, wherein the width B of the print carrier 07 extends transversely to the transport direction T.
- the image sensor 03 supplies an electronically evaluable image of at least part of a printed image 04, but preferably of the entire width B of the printed substrate 07, wherein along the width B of the print substrate 07 at least one print image 04 is applied to the print substrate 07.
- the image sensor 03 is embodied as an area camera 03 or as a line camera 03, which in each case has an optical device 33, in particular an objective 33, suitable for detecting the desired image recording area 23.
- An alternative arrangement of the image sensor 03 is that this is not directly downstream of the printing unit, but in one of the printing press 06, the promotional of the printing machine 06 produced printed images 04 and / or processing 2004-04-30
- the evaluation unit 02 which is designed in particular as a program-controlled, electronic computing system 02 and z. B. is located in a belonging to the printing machine 06 control station, receives via a data link 24, z. B. a data line 24, with the recorded image correlated data by the image sensor 03 transmits this data to the evaluation unit 02 or at least retrievable holds.
- the data correlated with the recorded image are processed in such a way that the image can be displayed on a display surface 08 of the display device 01.
- the display device 01 and the evaluation unit 02 are preferably connected to one another via a bidirectional data transmission path 31 or data line 31.
- the image sensor 03, the evaluation unit 02 and the display device 01 together form a system for inspecting at least part of a print image 04 applied to a print substrate 07.
- the functionality of this system can also be extended to control tasks, as will be explained below ,
- the evaluation unit 02 is associated with a memory 26 in which data of at least part of the recorded images and / or data can be stored over part of a captured image.
- the stored data at least the data of a particular image, serves as a reference in comparison with data from continuously updated images.
- the connection between the evaluation unit 02 and the memory 26 is in a bidirectional data transmission path 27, z. B. data line 27.
- comparing the data of a currently recorded image with the data of a previously recorded image or a stored reference image can be in the current printing process z.
- Printed image or type area between perfecting or between top and bottom in the production of double-sided printing products Likewise, by comparison, a register is test bar, i. H. the intended accuracy that individual partial colors have when overprinting in multicolor printing. Dot gain, register accuracy as well as register accuracy play an important role in multicolor printing.
- the print image 04 can be qualitatively judged on the basis of an identifying feature characterizing the print image 04 by checking either the recognition feature alone or the print image 04 together with the recognition feature by comparison with a reference image as to whether the recognition feature or print image 04 has the recognition feature belong to a particular class of recognition features or printed images 04, whether the recognition feature has a certain geometric contour and / or a specific relative arrangement to at least one further recognition feature.
- These tests are preferably fault tolerant, d. H. the assessment is carried out taking into account permissible tolerance limits.
- the evaluation unit 02 can be equipped with at least one output, from which the positioning command is transmitted via a data transmission path 28 to an actuating drive 29 influencing the printing process in the printing machine 06.
- Such actuator 29 is z. B. in conjunction with a printing unit belonging to the inking unit or dampening unit, a circumferential register, a page register or a diagonal adjustment for at least one of the forme cylinder relative to its associated transfer cylinder 21 is provided.
- the output of the evaluation unit 02 can also be used to a lighting device (not shown) for the image sensor 2004-04-30
- the display device 01 has a graphics-capable display surface 08 with a plurality of differently controllable by the evaluation unit 02, window-like areas 09; 11; 12; 13; 14, wherein a first area 09 optionally displays a currently recorded image, a previously recorded image or a reference image and a second area 11 at least one input field 6; 17 and / or a control panel 18; 19 for setting and / or operation of the evaluation unit 02 and / or for setting and / or operation of the printing machine 06 has.
- the system can be set with regard to at least one parameter, a function exerted by the system can be called up and / or triggered and / or a positioning command to be issued by the evaluation unit 02 can be input into the system or selected from a set of provided positioning commands.
- the display device 01 and the evaluation unit 02 can be designed such that in the first area 09 continuously recorded images are displayed. As soon as a currently recorded image reveals that the imaged print image 2004-04-30
- the display of this image is frozen, so to speak, by stopping the display of the continuously recorded images.
- the display stops at an image that exceeds at least a previously set allowable tolerance limit, at least for a preferably adjustable duration, before the display of the continuously recorded images is continued with the then currently recorded image.
- the duration for stopping the display can be z. B. 5 to 15 seconds, preferably 10 seconds.
- a printed image 04 whose evaluated image indicates that it exceeds a permissible tolerance limit with regard to its quality to be assessed can be identified by means of a marking device (not shown) connected to the system and / or discharged by a conveyor (not shown), wherein the system can be adjusted such that the Ausiree nit 02 a permissible tolerance limit automatically initiates' upon detection of exceeding the identification of the printed image 04 by the marking and / or the discharge by the conveyor by the evaluation unit, for 02. B. at its output sends a corresponding control command.
- the conditions for triggering this control command are preferably selectable and adjustable on the display surface 08.
- a third region 12 is provided on the display surface 08, wherein the third region 12 displays at least one designation of the evaluation unit 02 and / or a job currently being processed in the printing press 06. Also, in this third area 12 z. Example, whether the current job has undergone a change in its parameters relevant to the printing process.
- the display area 08 can also have a fourth area 13, the fourth area 13 having at least one menu with a menu structure which opens at its selection with at least one function for operating and / or setting the evaluation unit 02 and / or for operating and / or setting the Printing machine 06 2004-04-30
- the selectable in the fourth area 13 of the display area 08 from a menu function thus relates to z. B. setting up a new job to be processed by the printing press 06 or editing or changing an existing job, the second area 11 of the display area 08 depending on the selection made in the menu, a fixed sequence of input fields 16; 1 and / or control panels 18; 19 for setting and / or operation of the evaluation unit 02 and / or for setting and / or operation of the printing press 06 pretends.
- a user is guided with respect to a functionality to be set in the system and / or the printing press 06, in that all settings required for the desired functionality are queried consistently one after the other, with a subsequent query requiring a response to the previous query.
- an image stored in the memory 26 z. B. selectable by means of the displayable in the fourth region 13 of the display area 08 menu and in the first area 09 of the display surface 08 can be brought to the display.
- Another in the fourth area 13 in the menu selectable function can, for.
- Example to set one or more allowable tolerance limits for assessing the quality of the printed images 06 generated by the printing machine 04 or to put the system by an orderly shutdown of its functions out of service, the latter is preferably executable only at a standstill of the printing press 06 and its Completion is indicated by the system by a corresponding message. It is advantageous for a quality characteristic to be assessed, in which an allowable tolerance limit is to be defined, to deposit a number of different sensitivity levels in the evaluation unit 02, for example, B.
- sensitivity levels between five and twenty sensitivity levels, preferably ten sensitivity levels, with a suitable sensitivity level by means of the menus displayed in the fourth area 13 and / or the input fields 16; 17 and / or the control panels 18; 19 in the second area 11 selectable and is adjustable for the system.
- a fifth region 14 can be provided on the display surface 08, wherein the fifth region 14 at least one status of the evaluation unit 02 and / or the 2004-04-30
- Print engine 06 indicates. Status displays in this fifth area 14 may, for. B. in the form of a pictogram.
- the display surface 08 the first area 09 and the second area 11 arranged side by side and at least two of the five areas 09; 11; 12; 13; 14, preferably all five areas 09; 11; 12; 13; 14, at the same time.
- the third, fourth and fifth regions 12; 13; 14 are preferably each cell-shaped, wherein the display surface 08 displays at least the fourth region 13 and the fifth region 14 permanently.
- the first area 09 of the display area 08 is video-capable and capable of displaying a sequence of several successive pictures in quick succession.
- the first area 09 of the display surface 08 is thus capable of sequentially displaying images of print images 04 printed on the print substrate 07 or at least of parts of the printed images 04 printed on the print substrate 07 with the image sensor 03 sequentially in a sequence such as that completely or at least partially by the image sensor 03 fixed with respect to the printing press stationary image images 04 due to the transport speed of the print carrier 07, the image pickup area 23 of the image sensor 03 pass.
- An image playback frequency of the first region 09 of the display surface 08 is therefore at least as large as an image recording frequency of the image sensor 03. According to the transport speed of the print carrier 07 can be such.
- This film-like display of the printed images 04 has the advantage that z. B. color deviations of their tendency to be quickly recognizable, even if at a display speed of several frames per second, the single print image 04 is no longer discretely inspectable for operators of the printing press.
- displaying a sequence of print images 04 is also visualized in which 2004-04-30
- Such an initiated adjustment of zone screws of the inking unit will then turn after a short time for the operating personnel of the printing press in the first area 09 of the display surface 08 running film of the printed images 04 recognizable by a reversal in the tendency of color deviation.
- the electronic control of the display surface 08 is to be designed such that video signals can be processed and displayed.
- the control must z. B. can process a sufficiently large signal bandwidth at a high speed.
- the display surface 08 has at least one touch-sensitive field for operation and / or adjustment of the evaluation unit 02 and / or the printing press 06, wherein in particular in the second region 11, the input field 16; 17 and / or the control panel 18; 19 are configured for setting and / or operation of the evaluation unit 02 and / or for setting and / or operation of the printing press 06 as a touch-sensitive field.
- the display surface 08 is thus preferably designed as a touch screen.
- the display device 01 and / or the evaluation unit 02 have at least two operating modes, the operating modes being in a different design of the display surface 08 and / or in the scope, ie in particular in the number of displays shown on the display surface 08 and / or or in the scope of the operation and / or adjustment of the evaluation unit 02 and / or the printing machine 06 differ.
- a change from a currently set operating mode to a larger operating range with respect to the displays and / or the operation and / or the setting of the evaluation unit 02 and / or the printing press 06 preferably depends on the proof of an authorization, this proof z.
- B. in a password or in an identification feature of the user and the system is to be notified by an input for review.
- the order of the displayed on the display surface 08 input fields 16; 17 and / or panels 18; 19 can 2004-04-30
- the operating modes differ z. Example is that in one mode only necessary to execute a print job functions are displayed, whereas in another mode z. B. all settings of the system up to the settings of the image sensor 03 and those of the printing press 06 are changeable.
- evaluation unit 02 preferably has a learning mode for determining and / or defining at least one reference image and a working mode for comparing a currently recorded image with the reference image, wherein display device 01 detects in its first region 09 a test performed by evaluation unit 02 Indicates deviation from the reference image.
- the number of printed images 04 to be evaluated in the learning mode can be entered on the display surface 08 and can be variably adjusted.
- the system may preferably automatically switch to working mode.
- the system in particular the display surface 08, has a function to prevent an unintentional or erroneous input on an input field 16; 17 and / or control panel 18; 19 and / or to cancel or delete an erroneous selection from the menu displayed in the fourth area 13 of the display area 08.
- Also stored in the memory 26 data that are no longer needed are completely or partially z. B. by the operation of a specific control panel 18; 19 erasable.
- the display surface 08 can in particular in its fifth region 14 z. For example, indicate how many printed images 04 have been produced in total and / or how many well-rated images 04 of the printing machine 06 at a current order already.
- Statistics feature can display information about a single image and / or multiple images. This information may preferably be stored in the memory 26 for a limited time and / or be able to be printed and printed there on the basis of a command that can be input to the system to a printer (not shown) connected to the evaluation unit 02.
- the evaluation unit 02 advantageously has an operating system which supports a method for inter-process communication, which is designed to exchange complex data structures.
- the operating system may be Windows NT4.0 e (or higher) or Windows 2000 ⁇ (or higher), and communication may be according to the COM (Co mon Object Model) / DCOM (Distributed Component Object Model) standard.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04730545.3A EP1620265B2 (de) | 2003-05-02 | 2004-04-30 | System zur inspektion eines druckbildes |
US10/554,695 US7664294B2 (en) | 2003-05-02 | 2004-04-30 | System for automatic quality inspection of a printed image, comprising an image sensor, evaluation unit and display |
DE502004009270T DE502004009270D1 (de) | 2003-05-02 | 2004-04-30 | System zur inspektion eines druckbildes |
JP2006505583A JP2006525145A (ja) | 2003-05-02 | 2004-04-30 | 印刷画像を検査するためのシステム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10319771.0 | 2003-05-02 | ||
DE10319771A DE10319771B4 (de) | 2003-05-02 | 2003-05-02 | System zur Inspektion eines Druckbildes |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004096547A2 true WO2004096547A2 (de) | 2004-11-11 |
WO2004096547A3 WO2004096547A3 (de) | 2004-12-23 |
Family
ID=33394073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/050662 WO2004096547A2 (de) | 2003-05-02 | 2004-04-30 | Systeme zur inspektion eines druckbildes |
Country Status (8)
Country | Link |
---|---|
US (1) | US7664294B2 (de) |
EP (2) | EP2011651B1 (de) |
JP (1) | JP2006525145A (de) |
CN (1) | CN100395107C (de) |
AT (1) | ATE427217T1 (de) |
DE (3) | DE10319771B4 (de) |
ES (1) | ES2321616T3 (de) |
WO (1) | WO2004096547A2 (de) |
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- 2004-04-30 DE DE502004009772T patent/DE502004009772D1/de not_active Expired - Lifetime
- 2004-04-30 DE DE502004009270T patent/DE502004009270D1/de not_active Expired - Lifetime
- 2004-04-30 JP JP2006505583A patent/JP2006525145A/ja active Pending
- 2004-04-30 ES ES04730545T patent/ES2321616T3/es not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP1620265A2 (de) | 2006-02-01 |
DE10319771A1 (de) | 2004-11-25 |
EP1620265B2 (de) | 2017-10-25 |
JP2006525145A (ja) | 2006-11-09 |
CN100395107C (zh) | 2008-06-18 |
US7664294B2 (en) | 2010-02-16 |
ATE427217T1 (de) | 2009-04-15 |
EP1620265B1 (de) | 2009-04-01 |
DE502004009772D1 (de) | 2009-08-27 |
US20060230358A1 (en) | 2006-10-12 |
DE502004009270D1 (de) | 2009-05-14 |
EP2011651B1 (de) | 2009-07-15 |
CN1784308A (zh) | 2006-06-07 |
EP2011651A1 (de) | 2009-01-07 |
ES2321616T3 (es) | 2009-06-09 |
DE10319771B4 (de) | 2005-03-17 |
WO2004096547A3 (de) | 2004-12-23 |
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