EP1852256B1 - Machine d'impression flexographique - Google Patents

Machine d'impression flexographique Download PDF

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Publication number
EP1852256B1
EP1852256B1 EP20070008720 EP07008720A EP1852256B1 EP 1852256 B1 EP1852256 B1 EP 1852256B1 EP 20070008720 EP20070008720 EP 20070008720 EP 07008720 A EP07008720 A EP 07008720A EP 1852256 B1 EP1852256 B1 EP 1852256B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
format
flexographic printing
printing press
inking
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.)
Ceased
Application number
EP20070008720
Other languages
German (de)
English (en)
Other versions
EP1852256A1 (fr
Inventor
Günter Schmid
Silvio Zamzow
Bruno Senger
Miguel Angel Jimenez
Andreas Kraus
Peter Siebker
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.)
Schaeffler Industrial Drives AG and Co KG
IHO Holding GmbH and Co KG
Original Assignee
INA Drives and Mechatronics GmbH and Co KG
Schaeffler 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 INA Drives and Mechatronics GmbH and Co KG, Schaeffler KG filed Critical INA Drives and Mechatronics GmbH and Co KG
Publication of EP1852256A1 publication Critical patent/EP1852256A1/fr
Application granted granted Critical
Publication of EP1852256B1 publication Critical patent/EP1852256B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B41F13/38—Cylinder lifting or adjusting devices electrically or magnetically operated
    • 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

Definitions

  • the invention relates to a flexographic printing press with a central impression cylinder and surrounding format and color cylinders. Furthermore, the invention relates to a method for operating a flexographic printing machine.
  • a flexographic printing machine is for example from the DE 102 09 536 A1 known.
  • This printing machine has on both sides of a vertical, extending through the axis of a counter-pressure cylinder center plane brackets on which various roller bearing blocks are arranged displaceably.
  • the displaceability of the roller bearing blocks fulfills the purpose of being able to exchange color cylinders or format cylinders, also referred to as printing cylinders, as needed, for example after changing a print job.
  • the displacement of the individual roller bearing blocks takes place by means of different spindles and timing belt drives.
  • the invention has for its object to provide a flexographic printing machine, which allows for a simple structure, a fast, accurate and mutually independent adjustment of a format cylinder and a color cylinder. Furthermore, the object is to improve the performance of a flexographic printing machine.
  • the flexographic printing machine has, in a manner known per se, a central counter-pressure cylinder and a plurality of pairs each consisting of a format cylinder and a color cylinder.
  • the format cylinders abut on the impression cylinder and in turn are contacted by a respective color cylinder.
  • Moving devices are provided for changing the distances of the axes of rotation of the format cylinders and color cylinders from the axis of rotation of the impression cylinder.
  • Each traversing device enables independent adjustment of a format cylinder and a color cylinder.
  • the shuttle has a single, relative to the axis of the impression cylinder stationary, non-rotatable spindle, which serves to guide two independently movable carriage.
  • a spindle nut is mounted, which is directly driven by an electric motor.
  • the rotor of the electric motor is rigidly connected to the spindle nut, for example by a clamping or screw connection.
  • the motor is a torque motor.
  • the rotor of the motor is not rotatably supported by means of a separate Rotativlagers, but exclusively via a rotary bearing of the spindle nut, preferably a double-row angular contact ball bearings.
  • a rotary bearing of the spindle nut preferably a double-row angular contact ball bearings.
  • the traversing device has a length measuring device which can be designed as an incremental or absolute measuring system. Instead of a direct position determination of the carriage and an indirect position determination via a measurement of the angular position of the spindle nut-rotor unit is possible.
  • the traversing device with directly driven spindle nut has the particular advantage that compared to traversing systems which work with mechanical transmission means, such as toothed belts, high accelerations and traveling speeds as well as very short reaction times can be realized.
  • This makes it possible to use the shuttle not only when replacing cylinders, but also for active vibration damping.
  • vibrations of the impression cylinder are detected by means of a sensor and forwarded the corresponding signals to a control device which controls the traversing device, the one on the spindle nut counteracts the torque acting on the linear drive of the format and / or color cylinder of the oscillation of the impression cylinder.
  • FIG. 1 are roughly simplified essential functional elements of a flexographic printing machine 1 shown.
  • a central impression cylinder 2 acts together with format cylinders 3 and color cylinders 4.
  • An unillustrated to be printed fabric is applied to the surface of the impression cylinder 2 at.
  • the format cylinder 3 which presses the material web against the impression cylinder 2 have the printing pattern on the surface.
  • the printing ink is transferred from the color cylinders 4 to the format cylinder 3.
  • Both the format cylinder 3 and the color cylinder 4 can be replaced if necessary.
  • a shuttle 5 per pair of cylinders 3, 4 is present.
  • the traversing device 5 has a fixed, for example by means of a clamp 6, arranged in a frame 7 spindle 8. This spindle 8, together with a likewise fixed to the frame 7 linear guide 9 of the guide of two carriages 10, 11, which form bearing blocks of the format cylinder 3 and the color cylinder 4.
  • the format cylinder 3 is as out FIG. 2 emerges, as well as the color cylinder color cylinder 4 with roller bearings 12, for example, needle bearings, stored in the carriage 10, 11.
  • a length measuring device 13 with a measuring head 14 and a linear scale 15 is provided.
  • the drive of the carriage 10, 11 by means of a principle, for example, from the DE 102 10 071 A1 known torque motor 16, as shown in detail in Figure 3.
  • the permanent magnet excited torque motor 16 has a rigidly connected to the carriage 10, 11 energized primary part 17 and a rotatable secondary part 18 which is fixedly connected by means of a screw 19 with a spindle 8 cooperating with the spindle nut 20.
  • the spindle nut 20 is rotatably supported relative to the stator 17 of the torque motor 16 by means of a double-row angular contact ball bearing 21.
  • the rotor 18 of the torque motor 16 does not have its own Rotativlager.
  • the electric direct drive of the spindle nut 20 by the torque motor 16 makes it possible to change the forces acting between the cylinders 2, 3, 4, in particular between the format cylinder 3 and the impression cylinder 2, very accurately and quickly.
  • This property can be used to actively suppress vibrations of the impression cylinder 2.
  • vibrations of the impression cylinder 2 are measured with a vibration sensor 22, which passes corresponding signals to a control device 23.
  • the control device 23 is used to control the torque motor 16, whereby forces are generated, the counteracting in the oscillation of the impression cylinder 2 Mode act on the format cylinder 3 and / or the color cylinder 4. In this way, a closed loop for active vibration damping is realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (8)

  1. Machine d'impression flexographique, comprenant un cylindre de contre-pression (2) ainsi que plusieurs paires, disposées autour de lui, constituées chacune d'un cylindre de cliché (3) et d'un cylindre encreur (4), le cylindre de cliché (3) étant prévu pour venir en contact d'une part avec le cylindre de contre-pression (2) et d'autre part avec le cylindre encreur (4), et les positions des axes (A3, A4) du cylindre de cliché (3) et du cylindre encreur (4) par rapport à l'axe (A2) du cylindre de contre-pression (2) pouvant être modifiées au moyen d'un dispositif de déplacement (5), caractérisée en ce que le dispositif de déplacement (5) comprend une broche (8) fixée en position par rapport à l'axe (A2) du cylindre de contre-pression (2), sur laquelle deux chariots (10, 11) déplaçables indépendamment l'un de l'autre sont guidés au moyen d'un écrou de broche respectif entraînable (20), les chariots étant prévus pour supporter le cylindre encreur (4), respectivement le cylindre de cliché (3), un rotor (18) d'un moteur (16) servant à l'entraînement direct de l'écrou de broche (20) étant connecté rigidement à l'écrou de broche (20).
  2. Machine d'impression flexographique selon la revendication 1, caractérisée en ce que le moteur (16) entraînant directement l'écrou de broche (20) est réalisé sous forme de moteur à couple.
  3. Machine d'impression flexographique selon la revendication 1 ou 2, caractérisée en ce que le rotor (18) est monté à rotation sans palier rotatif propre, exclusivement par le biais d'un palier rotatif (21) de l'écrou de broche (20).
  4. Machine d'impression flexographique selon la revendication 3, caractérisée en ce que le palier rotatif (21) de l'écrou de broche (20) est réalisé sous forme de roulement à billes à contact oblique à deux rangées.
  5. Machine d'impression flexographique selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le dispositif de déplacement (5) présente un dispositif de mesure de longueur (13).
  6. Machine d'impression flexographique selon l'une quelconque des revendications 1 à 5, caractérisée par un capteur d'oscillations (22) enregistrant des oscillations du cylindre de contre-pression (2).
  7. Machine d'impression flexographique selon la revendication 6, caractérisée par un dispositif de commande (23) pour commander le dispositif de déplacement (5) en fonction d'un signal fourni par le capteur d'oscillations (22).
  8. Procédé pour faire fonctionner une machine d'impression flexographique, qui présente un cylindre de contre-pression (2) ainsi que plusieurs cylindres de cliché (3) en contact avec lui et un nombre de cylindres encreurs (4) correspondant au nombre des cylindres de cliché (3), qui viennent respectivement en contact avec un cylindre de cliché (3), ayant les caractéristiques suivantes :
    - les oscillations du cylindre de contre-pression (2) sont détectées au moyen d'un capteur d'oscillations (22) ;
    - les signaux fournis par le capteur d'oscillations (22) sont utilisés pour modifier automatiquement la position d'au moins l'un des cylindres, le cylindre de cliché (3) ou le cylindre encreur (4), de manière à amortir les oscillations, un chariot (10, 11) supportant le cylindre de cliché (3), respectivement le cylindre encreur (4), étant déplacé au moyen d'un entraînement à broche (8, 20) par un écrou de broche (20) entraîné directement électriquement.
EP20070008720 2006-05-05 2007-04-28 Machine d'impression flexographique Ceased EP1852256B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610020957 DE102006020957A1 (de) 2006-05-05 2006-05-05 Flexodruckmaschine

Publications (2)

Publication Number Publication Date
EP1852256A1 EP1852256A1 (fr) 2007-11-07
EP1852256B1 true EP1852256B1 (fr) 2008-07-09

Family

ID=38441248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070008720 Ceased EP1852256B1 (fr) 2006-05-05 2007-04-28 Machine d'impression flexographique

Country Status (3)

Country Link
EP (1) EP1852256B1 (fr)
CN (1) CN101066638B (fr)
DE (2) DE102006020957A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008025997B4 (de) 2008-05-29 2012-10-04 Windmöller & Hölscher Kg Farb- oder Druckwerk einer Druckmaschine
DE102009028208B4 (de) 2009-08-04 2017-04-13 Koenig & Bauer Ag Koppelvorrichtung eines Zylinders einer Druckmaschine und ein Verfahren zum Ankoppeln eines Zylinders einer Druckmaschine
DE102009028201B4 (de) 2009-08-04 2016-06-09 Kba-Meprint Ag Druckmaschine und ein Verfahren zur Handhabung von Zylindern
DE102009028204A1 (de) 2009-08-04 2011-02-17 Kba-Metronic Aktiengesellschaft Diagonalregistereinstellvorrichtung
DE102009028214B4 (de) * 2009-08-04 2016-06-02 Kba-Meprint Ag Positioniervorrichtung zweier Zylinder und ein Verfahren zur Positionierung von Zylindern
DE102009028199A1 (de) 2009-08-04 2011-02-17 Kba-Metronic Aktiengesellschaft Lageraufnahme eines Lagers eines Zylinderzapfens und ein Verfahren zum Schließen und Verriegeln einer Lageraufnahme
DE102010052482A1 (de) * 2010-11-26 2012-05-31 Kraussmaffei Berstorff Gmbh Walzenspaltmesssystem
CN108001029A (zh) * 2017-12-20 2018-05-08 上海广平印刷设备有限公司 一种柔版跳印装置
DK3738773T3 (da) * 2019-05-09 2022-10-31 Heidelberger Druckmasch Ag Apparat til udmåling af forhøjninger på overfladen af et omdrejningslegeme

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319493A1 (fr) * 1975-07-31 1977-02-25 Holweg Ateliers Const Meca Dispositif pour le changement et le calage des cylindres de machine a imprimer
DE4001735A1 (de) * 1990-01-22 1991-07-25 Windmoeller & Hoelscher Vorrichtung zum verfahren von wellen lagernden lagerboecken
DE4005681A1 (de) * 1990-02-22 1991-08-29 Windmoeller & Hoelscher Vorrichtung zum ausfuehren einer schnellverstellung von maschinenteilen o. dgl.
DE19540149C1 (de) * 1995-10-27 1997-04-24 Windmoeller & Hoelscher Vorrichtung zum Verfahren von auf in Schlittenführungen verschieblichen und Wellen lagernden Schlitten
US5868071A (en) * 1997-09-02 1999-02-09 Goss Graphic Systems, Inc. Variable cutoff printing press
DE10024350A1 (de) * 2000-05-17 2001-11-22 Bhs Druck Veredelungstech Wechsel-Druckwerk für Druckmaschinen zur Umrüstung zwischen Flexodruck- und Tiefdruck-Betrieb
DE10107135A1 (de) * 2001-02-15 2002-08-29 Windmoeller & Hoelscher Rollendruckmaschine sowie Verfahren zur Schwingungsdämpfung hieran
DE10114250A1 (de) * 2001-03-22 2002-09-26 Fischer & Krecke Gmbh & Co Druckverfahren
DE10209536B4 (de) * 2001-11-12 2006-11-02 Fritz Achelpohl Druckmaschine, vorzugsweise Flexodruckmaschine
DE10210071A1 (de) * 2002-03-08 2003-10-09 Lat Suhl Ag Drehmomentmotor in Segmentbauweise
CN2681895Y (zh) * 2004-03-17 2005-03-02 汕头市东源轻工机械厂有限公司 胶印机串墨辊压力调节机构

Also Published As

Publication number Publication date
CN101066638A (zh) 2007-11-07
CN101066638B (zh) 2010-08-04
DE502007000038D1 (de) 2008-08-21
DE102006020957A1 (de) 2007-11-08
EP1852256A1 (fr) 2007-11-07

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