EP1952985A2 - Procédé et dispositif destinés au positionnement de clichés sur des outils d'imprégnation - Google Patents

Procédé et dispositif destinés au positionnement de clichés sur des outils d'imprégnation Download PDF

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Publication number
EP1952985A2
EP1952985A2 EP08101158A EP08101158A EP1952985A2 EP 1952985 A2 EP1952985 A2 EP 1952985A2 EP 08101158 A EP08101158 A EP 08101158A EP 08101158 A EP08101158 A EP 08101158A EP 1952985 A2 EP1952985 A2 EP 1952985A2
Authority
EP
European Patent Office
Prior art keywords
image
cliché
actual
carrier plate
data processing
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.)
Withdrawn
Application number
EP08101158A
Other languages
German (de)
English (en)
Other versions
EP1952985A3 (fr
Inventor
Andrea Franke
Annette Fuchs
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1952985A2 publication Critical patent/EP1952985A2/fr
Publication of EP1952985A3 publication Critical patent/EP1952985A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins

Definitions

  • the invention relates to a method and a device for positioning clichés on embossing tools according to the preambles of the independent claims.
  • the printed products contained on a printed sheet are separated by cutting the printed sheet.
  • the stamping dies used for the hot stamping and punching are hereinafter referred to uniformly as the backing sheets because they are very similar to each other and the invention applies to both types of tools equally applicable. A difference exists only insofar as the carrier plates used in stamping machines are usually heatable in order to detach the desired ornaments or lettering from the hot stamping foil and to fix it on the printed sheet.
  • the clichés on the support plate must be arranged so that they are correctly positioned relative to the print sheet, so that the embossing or stamping for all the printed matter contained on the print sheet at the intended positions, which are usually in relation to already existing print image, takes place.
  • This attachment of the clichés is carried out according to the prior art in a complex manner manually in an iterative process, the steps in steps: Apply clichés - install carrier plate in processing machine - perform sample stamping or punching - remove support plate from processing machine - includes, until finally each cliche is located at its intended location.
  • the present invention has the object to provide a method and an apparatus that significantly reduces the time required in the assembly of the carrier plate with clichés and leads to a highly accurate result.
  • the inventive method for positioning clichés on a support plate of a stamping or punching tool, wherein at least one cliché is attached to a predetermined position of the surface of the support plate is characterized in that an image of at least a portion of the surface of the support plate (actual image ) is recorded and superimposed with a predetermined image of at least a portion of the embossing or punching (target image) to be generated with the representation of the predetermined position of the plate (target position) and the cliché is moved on the surface of the support plate until the current Position of the cliché (actual position) coincides with the desired position and the cliché is mounted on the support plate.
  • the actual image can be detected for example by means of an electronic camera and the superposition of target image and Actual image can be visualized on a screen.
  • an electronic data processing device can be advantageously used for superposition of target image and actual image, as well as for visualization of the superposition of target image and actual image.
  • an electronic data processing device is used to control the movement of the plate on the surface of the carrier plate.
  • the accuracy of the method can be considerably improved by scaling at least one of the two images before the superimposition of target image and actual image. For example, it can be provided that the actual image is enlarged or the target image is reduced or a combination of both is performed. It is advantageously provided that the scaling of the at least one image takes place as a function of a temperature measured on the carrier plate.
  • the temperature of the carrier plate is continuously measured in a preferred embodiment of the method and the scaling of the image is continuously adjusted to the current value of the temperature.
  • continuous in contrast to a unique recording of the temperature and a one-time scaling of an image - equally the constant recording of the temperature, the constant adjustment of the scale, one at intervals temperature sensing and interval scaling adjustment.
  • an electronic data processing device is also used to control the movement of the camera.
  • the device according to the invention for carrying out the method for positioning clichés on a carrier plate of a stamping or punching tool comprises an image acquisition device for acquiring an actual image, an image overlay device for superposing the actual image with a predefinable target image and an evaluation device for evaluating the superimposed one Images.
  • the invention provides that the image capture device is movably mounted. In this way it is possible to detect only a portion of the surface of the carrier plate, then to move the image capture device and then to capture a different portion of the surface of the carrier plate.
  • a controllable drive device is furthermore provided, which is in operative connection with the image generation device.
  • the controllable drive means a highly accurate positioning of the image capture device over the surface of the carrier plate.
  • the drive device is in operative connection with an electronic data processing device and is controlled by it.
  • the image superimposition device is an electronic data processing device or a visualization device.
  • the image overlay can take place exclusively within a computer, which then possibly also carries out the evaluation of the overlaid images and possibly also controls the movement of the stereotype until the actual position coincides with the desired position.
  • the evaluation device is also an electronic data processing device, or the electronic data processing device assumes the functions of the evaluation device.
  • the evaluation device is a visualization device.
  • a controllable manipulation device is provided for moving the cliché on the surface of the carrier plate.
  • the use of such a manipulation device increases the accuracy in the positioning of the plates, saves manual work and allows the automation of the process.
  • the manipulation device is in operative connection with an electronic data processing device and is controlled by it.
  • the device may comprise a data processing device which at the same time performs the functions of superimposing the actual image with a predefinable target image, visualizing the superimposed images and / or evaluating the superimposed images and, if appropriate, triggering the manipulation device.
  • a temperature detection device connectable to the carrier plate and to the image superimposition device is provided.
  • the temperature of the carrier plate determined by means of the temperature detection device is transferred in this way to the image superimposing device, where the size of the scaling can be calculated on the basis of the thermal expansion coefficient of the material of the carrier plate. This calculation can be done either once before the superposition of the two images or continuously, that is recurring at intervals or constantly (permanently).
  • FIG. 1 a device for carrying out the method according to the invention.
  • the device according to the invention comprises an electronic camera 7 as an image capture device 3 and a computer 8 as a data processing device with the function of an image overlay device 4 and a screen 9 controlled by the computer with the functions of a visualization device 6 and an evaluation device 5.
  • a partial region of the surface of the carrier plate 1 is detected by the electronic camera 7 (actual image 10) and the actual image 10 is transferred to the computer 8.
  • a target image 11 of the same subregion of the surface of the carrier plate 1 is stored.
  • Both the actual image 10 and the target image 11 contain information that serves for the correct superposition of both images. This information may, for example, be a mark arranged at the same location of both images or, if the markers are not visible in the currently detected portion of the surface, the coordinates of the mark relative to the coordinates of the electronic camera 3 in a predetermined coordinate system.
  • the carrier plate 1 is a hot stamping tool, it is necessary to scale at least one of the two images 10, 11 prior to the overlay to compensate for thermal expansions.
  • the computer 8 sends the superimposed images to the screen 9 where they are visualized.
  • the machine setter who operates the device sees on the screen 9 at the same time in the target image 11 provided for the cliché 2 target position and in the superimposed actual image 10, the actual position of the actually located on the support plate cliché 2 and the deviation between the two positions.
  • the screen 9 in this embodiment of the device at the same time the evaluation device. 5
  • the cliché 2 can now be moved by hand on the support plate 1 until the evaluation device 5 signals to the machine setter that the actual position of the plate 2 corresponds to its desired position. Subsequently, the plate 2 can be mounted on the support plate 1.

Landscapes

  • Image Processing (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
EP08101158A 2007-02-02 2008-01-31 Procédé et dispositif destinés au positionnement de clichés sur des outils d'imprégnation Withdrawn EP1952985A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710006069 DE102007006069A1 (de) 2007-02-02 2007-02-02 Verfahren und Vorrichtung zur Positionierung von Klischees auf Prägewerkzeugen

Publications (2)

Publication Number Publication Date
EP1952985A2 true EP1952985A2 (fr) 2008-08-06
EP1952985A3 EP1952985A3 (fr) 2008-12-17

Family

ID=39471929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101158A Withdrawn EP1952985A3 (fr) 2007-02-02 2008-01-31 Procédé et dispositif destinés au positionnement de clichés sur des outils d'imprégnation

Country Status (2)

Country Link
EP (1) EP1952985A3 (fr)
DE (1) DE102007006069A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008117327A3 (fr) * 2007-03-27 2008-12-31 Sys Tec S R I Procédé et machine pour monter des clichés sur une table de repérage d'une machine d'estampage à feuille chaude plate
EP2127872A1 (fr) 2008-05-29 2009-12-02 Andrea Franke Procédé et dispositif destinés au positionnement de clichés sur des outils de gaufrage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677082A5 (fr) * 1988-06-01 1991-04-15 Bobst Sa
DE4140211C2 (de) * 1991-12-06 1999-12-09 Meurer Nonfood Product Gmbh Verfahren und Vorrichtung zum Einrichten von Stanzformen sowie zum Ausrichten von Prägeklischees zu einer Prägevorlage
US6823793B2 (en) * 2003-01-06 2004-11-30 Esko Graphics, Nv Method and apparatus for mounting flexographic plate segments

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008117327A3 (fr) * 2007-03-27 2008-12-31 Sys Tec S R I Procédé et machine pour monter des clichés sur une table de repérage d'une machine d'estampage à feuille chaude plate
EP2127872A1 (fr) 2008-05-29 2009-12-02 Andrea Franke Procédé et dispositif destinés au positionnement de clichés sur des outils de gaufrage

Also Published As

Publication number Publication date
DE102007006069A1 (de) 2008-08-07
EP1952985A3 (fr) 2008-12-17

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