EP3251849A1 - Machine d'impression flexographique - Google Patents

Machine d'impression flexographique Download PDF

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Publication number
EP3251849A1
EP3251849A1 EP16172345.7A EP16172345A EP3251849A1 EP 3251849 A1 EP3251849 A1 EP 3251849A1 EP 16172345 A EP16172345 A EP 16172345A EP 3251849 A1 EP3251849 A1 EP 3251849A1
Authority
EP
European Patent Office
Prior art keywords
printing
register
image
central cylinder
correction data
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Withdrawn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
EP16172345.7A
Other languages
German (de)
English (en)
Inventor
Martin Krümpelmann
Frank Gunschera
Dietmar Pötter
Jürgen Dr. VUTZ
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP16172345.7A priority Critical patent/EP3251849A1/fr
Priority to EP17729056.6A priority patent/EP3463890A1/fr
Priority to PCT/EP2017/063230 priority patent/WO2017207670A1/fr
Publication of EP3251849A1 publication Critical patent/EP3251849A1/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Withdrawn legal-status Critical Current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
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/04—Rotary letterpress machines for printing on webs
    • B41F5/16—Rotary letterpress machines for printing on webs for multicolour printing
    • B41F5/18—Rotary letterpress machines for printing on webs for multicolour printing using one impression cylinder co-operating with several forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/10—Starting-up the machine
    • B41P2233/13—Pre-registering

Definitions

  • the invention relates to a flexographic printing machine and to a corresponding method for printing an image on a material web with a central cylinder and a plurality of inking units arranged around the central cylinder, in each of which printing ink can be transferred from a pressure roller to the material web.
  • the invention relates to a central cylinder flexographic printing machine, as this from the WO 2011/058074 A1 is known.
  • Such flexographic printing machines have a central cylinder around which the individual inking units are arranged in satellite construction. The printing material is guided past the individual inking units during the entire printing process on the central cylinder.
  • the central cylinder is operated with a high concentricity (with a steel cylinder of 1.80 m diameter, the concentricity is for example a few microns), so that the register position of the voltage applied to the central cylinder printing material remains constant. In this way, in particular stretchable plastic films can be printed with a high print quality.
  • the sleeve itself consists of a thin-walled sleeve, to which the flexible printing plates (also called cliché) are glued.
  • the printing plates are made of rubber or photopolymer, with their hardness and thickness depends on the particular substrate.
  • the object of the invention is therefore to provide a flexographic printing machine, which allows optimized under economic aspects determination and adjustment of the register data.
  • Fig. 1 shows a schematic overall view of the flexographic printing machine 101 according to the invention with a camera 102, a database 103 and a control unit 104.
  • the flexographic printing machine 101 is a so-called central cylinder machine and accordingly has a central cylinder 105 around which the eight inking units are arranged in a star shape.
  • Each of these inking units has a pressure roller, an anilox roller and a doctoring chamber, which are each mounted on machine-side anchors.
  • the inking unit 106 is designated by way of example.
  • the material web 107 In order to print on the material web 107, it is drawn off from the material roll 109 in the unwinding station 108 and fed to the pressure roll 110 via several guide rollers.
  • the pressure roller 110 applies the material web 107 for further transport to the central cylinder 105, so that the material web 107 is passed register-accurate to the inking units and the intermediate inking driers not shown.
  • the material web 107 After the material web 107 has left the central cylinder 105, it is passed through a bridge dryer 111 for drying the printing ink and then wound up in the winding station 112 onto the roll of material 113.
  • a database 103 is provided on which the PDF data of the respective printing cylinders are stored.
  • PDF is the abbreviation for Portable Document Format (short: PDF, German: (trans) portable document format) is a common name for a platform-independent file format for documents, which was originally developed by the company Adobe Systems and published in 1993.
  • test image corresponds to the image to be printed on the material web, however, initially only a single image is printed in order to minimize waste, which is referred to in this context as a test image.
  • Fig. 2 shows a schematic detail view of such a printed test pattern.
  • the test image consists of a color-printed letter "A", the color impression being obtained by three colors printed one above the other. Since the inking units are not yet set register-accurate to each other, the test image appears as in Fig. 2 shown with the corresponding register errors.
  • test image is transmitted from the camera 102 via the interface 104 to the control unit 104 and is compared there by way of pattern recognition via the interface 115 with the PDF data of the database 103. Due to this comparison, the control unit 104 is able to calculate the register correction data for the page register and the longitudinal register with respect to each inking unit and pass it via the interface 116 to the individual inking units of the flexographic printing press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP16172345.7A 2016-05-31 2016-05-31 Machine d'impression flexographique Withdrawn EP3251849A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16172345.7A EP3251849A1 (fr) 2016-05-31 2016-05-31 Machine d'impression flexographique
EP17729056.6A EP3463890A1 (fr) 2016-05-31 2017-05-31 Machine d'impression flexographique
PCT/EP2017/063230 WO2017207670A1 (fr) 2016-05-31 2017-05-31 Machine d'impression flexographique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16172345.7A EP3251849A1 (fr) 2016-05-31 2016-05-31 Machine d'impression flexographique

Publications (1)

Publication Number Publication Date
EP3251849A1 true EP3251849A1 (fr) 2017-12-06

Family

ID=56096559

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16172345.7A Withdrawn EP3251849A1 (fr) 2016-05-31 2016-05-31 Machine d'impression flexographique
EP17729056.6A Withdrawn EP3463890A1 (fr) 2016-05-31 2017-05-31 Machine d'impression flexographique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17729056.6A Withdrawn EP3463890A1 (fr) 2016-05-31 2017-05-31 Machine d'impression flexographique

Country Status (2)

Country Link
EP (2) EP3251849A1 (fr)
WO (1) WO2017207670A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112721441A (zh) * 2020-12-23 2021-04-30 江苏省高淳印刷股份有限公司 一种印刷机印刷质量检测装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004972A1 (de) * 2005-02-03 2006-08-10 Windmöller & Hölscher Kg Registerverfahren
EP1803565A1 (fr) * 2005-12-27 2007-07-04 Fischer & Krecke GmbH & Co. KG Procédé pour changer un groupe d'impression sur une presse rotative tournante
EP2055482A2 (fr) * 2006-07-28 2009-05-06 Comexi, SA Procédé de détermination d'images imprimées
WO2011058074A1 (fr) 2009-11-10 2011-05-19 Windmöller & Hölscher Kg Procédé d'exécution de tâches d'impression
DE102012221195A1 (de) * 2012-11-20 2014-05-22 Bst International Gmbh Verfahren und Vorrichtung zum Einstellen der Druckwerke an einem Druckzylinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142073A (en) * 1999-08-20 2000-11-07 Paper Converting Maching Company Method and apparatus for exchanging a roll of a printing press
ITVR20010130A1 (it) * 2001-12-06 2003-06-06 Of E M S R L Gruppo di stampa a cambio rapido delle maniche in macchine flessografiche
EP2384892A1 (fr) * 2010-05-07 2011-11-09 Windmöller & Hölscher KG Procédé de réglage et dispositif pour déterminer la distance optimale entre au moins deux cylindres impliqués dans le processus d'impression
ES2395182B1 (es) * 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método para controlar la operación de una máquina impresora y máquina impresora flexográfica para su implementación.
DE102012106981A1 (de) * 2012-07-31 2014-02-06 Eltromat Gmbh Verfahren zur Prüfung des Druckergebnisses bei Rotationsdruckmaschinen
DE102014219102A1 (de) * 2014-09-23 2016-03-24 Robert Bosch Gmbh Druckmaschine mit Bahnbeobachtung, welche durch die Registerregelung getriggert wird

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004972A1 (de) * 2005-02-03 2006-08-10 Windmöller & Hölscher Kg Registerverfahren
EP1803565A1 (fr) * 2005-12-27 2007-07-04 Fischer & Krecke GmbH & Co. KG Procédé pour changer un groupe d'impression sur une presse rotative tournante
EP2055482A2 (fr) * 2006-07-28 2009-05-06 Comexi, SA Procédé de détermination d'images imprimées
WO2011058074A1 (fr) 2009-11-10 2011-05-19 Windmöller & Hölscher Kg Procédé d'exécution de tâches d'impression
DE102012221195A1 (de) * 2012-11-20 2014-05-22 Bst International Gmbh Verfahren und Vorrichtung zum Einstellen der Druckwerke an einem Druckzylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112721441A (zh) * 2020-12-23 2021-04-30 江苏省高淳印刷股份有限公司 一种印刷机印刷质量检测装置

Also Published As

Publication number Publication date
WO2017207670A1 (fr) 2017-12-07
EP3463890A1 (fr) 2019-04-10

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