EP1418049B1 - Machine d'impression rotative - Google Patents

Machine d'impression rotative Download PDF

Info

Publication number
EP1418049B1
EP1418049B1 EP20030016019 EP03016019A EP1418049B1 EP 1418049 B1 EP1418049 B1 EP 1418049B1 EP 20030016019 EP20030016019 EP 20030016019 EP 03016019 A EP03016019 A EP 03016019A EP 1418049 B1 EP1418049 B1 EP 1418049B1
Authority
EP
European Patent Office
Prior art keywords
printing
treatment
machine according
electrode
corona
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 - Fee Related
Application number
EP20030016019
Other languages
German (de)
English (en)
Other versions
EP1418049A3 (fr
EP1418049A2 (fr
Inventor
Arndt Jentzsch
Christian Ziegenbalg
Uwe Becker
Tilo Steinborn
Michael Pscheidl
Matthias Lange
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1418049A2 publication Critical patent/EP1418049A2/fr
Publication of EP1418049A3 publication Critical patent/EP1418049A3/fr
Application granted granted Critical
Publication of EP1418049B1 publication Critical patent/EP1418049B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing

Definitions

  • the invention relates to a rotary printing machine with a system, at least one printing module, comprising a printing cylinder and a transfer cylinder, a delivery and a corona device for treating present as sheet or plate printing materials by means of electrical corona discharge, with a treatment electrode and a counter electrode, between which a treatment gap is formed.
  • the corona treatment is a proven and often used for the pretreatment of web-shaped or plate-shaped substrates in the printing industry treatment method.
  • the aim of the treatment is to prepare the substrates such that for the actual printing or coating of the substrates sufficient adhesion to the substrates and non-polar substances is achieved or even made possible.
  • they are passed through a treatment gap in which a corona discharge occurs between the treatment electrode and the counterelectrode, which influences the surface of the substrate.
  • the sheet to be treated is transported by a transport electrode unit (transport roller) formed as a counter electrode by gripping and transferring the sheet from grippers formed on the transport electrode unit.
  • the transport electrode unit (counterelectrode) opposite treatment electrode is designed so that it is for passing the gripper through the treatment gap of the counter electrode, ie the transport roller pivots, whereby the treatment gap is increased, that is, the treatment gap is synchronized with the circulation of the sheet gripper between a working and a gripper passage position adjusted.
  • a method and a device for corona treatment in which the ink layer applied to a printing material is dried before, for example, coating by corona treatment. This is done by the means for corona treatment after the last printing unit and provided before the means for coating the printing material and disposed over the impression cylinder of the last color printing unit.
  • the object of the invention is to develop a rotary printing machine according to the type mentioned above such that the corona device can be used for the targeted treatment of substrates in different processing levels within a processing line.
  • the corona device is associated with a printing unit, such that the pressure cylinder is designed as a counter electrode, and wherein with this pressure cylinder with the remaining corona device and with a transfer drum, a separate corona printing module is formed.
  • the corona printing module can be arranged at any passage between / before / after printing units of a rotary printing press.
  • the disadvantages of the previous solutions according to the prior art, according to which the corona device in an existing printing unit subsequently / additionally installed or adapted to this, in particular with regard to the establishment of the technically required treatment gap, the necessary design measures due to the rotating gripper elements the impression cylinder, the arrangement of additional aggregates, such as Blowing or suction devices, and the resulting increased structure can be circumvented with the inventive solution.
  • the corona printing unit module is arranged upstream of a first printing unit module, that is, after the installation, the corona printing unit module follows.
  • the printing material present as a sheet or plate is already subjected to corona treatment before being supplied or fed to the rotary printing press in order to prepare the printing material in such a way that it is suitable for the intended subsequent treatment steps, such as printing. Since the substrate properties achieved by the corona treatment can change or regress in time, According to this embodiment, by means of the corona printing unit module preceded by a first printing unit module, the printing substrate is again subjected to a corona treatment in order to refresh or improve the existing properties.
  • a corona printing unit module inserted after the system and another corona printing module for surface treatment of the other side (reverse side) of the substrate can be installed before or after the sheet turning device.
  • the grippers are designed as mechanically operating clamping gripper and consist of cooperating with gripper mounts movable gripper fingers or each of two gripper claw halves.
  • the clamping grippers protrude over the periphery of the printing cylinder to allow the acquisition of the sheet-shaped substrate from an upstream sheet-guiding cylinder or a transfer drum.
  • On the gripper acts a device which engages the gripper under the periphery of the printing cylinder in accordance with the angle of rotation of the printing cylinder with respect to the treatment electrode or the treatment gap.
  • the grippers are designed as suction pads and have a suction surface which extends at least approximately along the lateral surface of the impression cylinder.
  • the corona printing unit module at least one printing unit module nach- and upstream of at least one coating unit module, which additionally the drying rate of the applied color can be positively influenced.
  • the invention includes a corona printing unit module for use in a rotary printing press, wherein the treatment gap between the treatment electrode and the counter electrode during the treatment has a constant width in the range between 4 mm and 8 mm.
  • Counter electrode and treatment electrode are each connected to a high voltage source and controlled by control means in dependence on other machine-specific data.
  • the treatment electrode disposed opposite the counterelectrode may be formed, for example, as a one-piece rod-shaped electrode which extends over the entire format width.
  • the treatment electrode may be formed as an array of multiple (e.g., in-line) electrode elements, which array, which also extends across the entire width of the format, housed in a device opposite the counter electrode.
  • the treatment electrode or the device in which it is received is movably mounted and can be pivoted away from its working position and thus, spatially away from the counter electrode. This is particularly advantageous if the corona device is not used or needed.
  • the counter electrode (ground) is formed by the pressure cylinder or the electrically conductive support for the sheet.
  • the treatment gap between the counter electrode and the treatment electrode preferably has a width of 4 mm to 8 mm.
  • the opposing electrodes are arranged so that the surface of the printing material lying between them (sheet / plate) is optimally processed.
  • the treatment gap is so large / far chosen so that the pressure cylinder (that is, at the counter electrode) formed gripper can pass through the treatment gap unhindered.
  • the treatment gap is 6 mm. With this gap width of 6 mm, the corona treatment of the printing substrate is optimal and the grippers can pass through the treatment gap without hindrance.
  • the corona printing module has at least one hold-down for holding down the sheet / plate, which is in each case arranged in the region of a gap which is formed between two arranged on the printing cylinder grippers, the printing cylinder opposite.
  • two spaced-down device will be provided.
  • the hold-downs are arranged on the corona device such that, while the grippers pass through the area with the hold-downs in the processing process, each engage in a gap between two juxtaposed grippers, without the grippers or hold-down obstruct each other.
  • the hold-downs may e.g. cylindrical, on a plane parallel to the printing cylinder arranged cross-member traverse rollers be present during the processing or printing process on the sheet / plate and roll on this / this.
  • the axial length of the rollers is less than the distance between two juxtaposed grippers, so that each one roller can easily engage in the gap between two grippers.
  • one of the hold-down devices is preferably arranged in each case on a lateral end region of an axis-parallel traverse. The hold downs press the sheet / plate against the impression cylinder.
  • At least a hold-down device in front of the treatment electrode and a hold-down device after the treatment electrode are arranged on the corona device in the sheet running direction.
  • the distance between the treatment electrode and the hold-down device is 2 mm in each case. This ensures that the substrate in the region of the treatment gap at the counter electrode, so the pressure cylinder is applied.
  • the hold-downs can also be moved from their hold-down position from the working position, e.g. be swung upwards.
  • printing materials made of plastic, substrates with a certain material thickness or the like, which have a certain stiffness must be pressed or pressed against the printing cylinder by means of the hold-down so that the substrates actually pass the treatment gap on the pressure cylinder to achieve optimal corona treatment results and to avoid touching the treatment electrode.
  • a plurality of hold-downs can be arranged on a crossbeam (receiver).
  • the hold-downs can be pressed against the impression cylinder in a spring-loaded manner and roll on the printing substrate.
  • the hold-down or the trusses on which the hold-down are arranged, are formed wegschwenkbar from the printing cylinder.
  • a suction device sucking off the sheet / plate is provided on the corona printing unit module, the suction opening of which is aligned with the treatment gap.
  • electrical ground potential can be achieved on the impression cylinder by means of carbon slip rings.
  • the rotary printing machine has at least two printing unit modules, each with a printing tower, which are each equipped with a blanket cylinder a plate cylinder and an inking unit.
  • the first printing unit module in the sheet running direction is preceded by a corona printing unit module.
  • the corona printing unit module is a separate, independent module and has a pressure cylinder designed as a counter electrode and a transfer drum.
  • the corona device is arranged with the treatment electrode, wherein the treatment electrode and the counter electrode (impression cylinder) form between them the treatment gap.
  • the treatment electrode and the counter electrode impression cylinder
  • the treatment gap between the printing cylinder and the corona device is chosen so that the provided on the printing cylinder gripper can pass through this easily.
  • the corona printing unit module and the other printing unit modules each have a substantially same printing cylinder on a substantially same transfer drum and differ in that the printing unit modules are each provided with a printing tower, while the corona printing module with a corona device is provided.
  • the corona printing module 1 may also be inserted between two printing unit modules or connect to the last printing module and mounted before the delivery. Due to the modular design, no changes or similar must be made to the printing units. be made, the corona printing module can also be added later at any point on the rotary press as required.

Claims (14)

  1. Machine d'impression rotative comportant une installation, au moins un module de groupe d'impression avec un cylindre d'impression et un tambour de transfert, un margeur et une installation à effet couronne pour traiter les matières imprimées disponibles sous forme de feuilles ou de plaques par une décharge couronne, une électrode de traitement et une contre-électrode entre lesquelles on forme un intervalle de traitement,
    l'installation à effet couronne étant associée à un groupe d'impression de façon que le cylindre d'impression serve de contre-électrode, machine caractérisée en ce que
    le cylindre d'impression est réalisé comme contre-électrode, le restant de l'installation couronne et un tambour de transfert, constituent un module de groupe d'impression à effet couronne, séparé.
  2. Machine d'impression rotative selon la revendication 1,
    dans laquelle
    le module de groupe d'impression à effet couronne est installé en amont d'un premier module de groupe d'impression.
  3. Machine d'impression rotative selon la revendication 1 ou 2, selon laquelle
    le module de groupe d'impression à effet couronne est en aval d'au moins un module de groupe d'impression et en amont d'au moins un groupe de vernissage.
  4. Machine d'impression rotative selon l'une des revendications 1 à 3, comprenant au moins deux modules de groupe d'impression, et entre ceux-ci une installation de retournement de feuilles,
    le module de groupe d'impression couronne se trouvant directement en amont ou en aval de l'installation de retournement de feuilles.
  5. Machine d'impression rotative selon l'une des revendications 1 à 4, selon laquelle
    le premier cylindre d'impression réalisé comme contre-électrode, comporte des pinces installées du côté de l'enveloppe qui fixent la matière d'impression par son arête et une installation qui abaisse les pinces en dessous de la périphérie du cylindre d'impression suivant l'indication de l'angle de rotation du cylindre d'impression.
  6. Machine d'impression rotative selon l'une des revendications 1 à 4, selon laquelle
    le cylindre d'impression réalisé comme contre-électrode comprend du côté de l'enveloppe, des pinces travaillant avec de l'air aspiré pour fixer la matière d'impression au niveau de son arête avant, les pinces ayant une surface d'aspiration qui passe au moins sensiblement le long de la surface-enveloppe du cylindre d'impression.
  7. Machine d'impression rotative selon l'une des revendications précédentes,
    selon laquelle
    l'intervalle de traitement entre l'électrode de traitement et la contre-électrode présente une largeur constante de l'ordre de 4 mm à 8 mm pendant le fonctionnement.
  8. Machine d'impression rotative selon la revendication 7,
    selon laquelle
    l'intervalle de traitement reste constant à 6 mm pendant le fonctionnement.
  9. Machine d'impression rotative selon l'une des revendications précédentes comportant au moins un serre-flan, pour maintenir la feuille ou la plaque contre le cylindre d'impression, et qui est réalisé dans la zone de l'intervalle entre deux pinces installées sur le cylindre d'impression, en regard du cylindre d'impression.
  10. Machine d'impression rotative selon la revendication 9,
    selon laquelle
    au moins un serre-flan est prévu dans un logement d'axe parallèle au cylindre d'impression.
  11. Machine d'impression rotative selon la revendication 8 ou 9,
    selon laquelle
    dans la direction de circulation des feuilles, il est prévu au moins un serre-flan en amont et au moins un serre-flan en aval de l'électrode de traitement.
  12. Machine d'impression rotative selon l'une des revendications précédentes,
    selon laquelle
    l'orifice d'aspiration d'une installation d'aspiration qui aspire la feuille/plaque est aligné sur l'intervalle de traitement.
  13. Machine d'impression rotative selon l'une des revendications précédentes,
    selon laquelle
    l'installation à effet couronne et/ou les serre-flans peuvent être basculés hors de leur position active et être ainsi écartés de la contre-électrode.
  14. Machine d'impression rotative selon l'une des revendications précédentes,
    selon laquelle
    le potentiel électrique de masse est appliqué au cylindre d'impression par des bagues de frottement au carbone.
EP20030016019 2002-07-17 2003-07-15 Machine d'impression rotative Expired - Fee Related EP1418049B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10232255 2002-07-17
DE2002132255 DE10232255A1 (de) 2002-07-17 2002-07-17 Rotationsdruckmaschine

Publications (3)

Publication Number Publication Date
EP1418049A2 EP1418049A2 (fr) 2004-05-12
EP1418049A3 EP1418049A3 (fr) 2006-03-15
EP1418049B1 true EP1418049B1 (fr) 2010-05-12

Family

ID=30010072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030016019 Expired - Fee Related EP1418049B1 (fr) 2002-07-17 2003-07-15 Machine d'impression rotative

Country Status (2)

Country Link
EP (1) EP1418049B1 (fr)
DE (2) DE10232255A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007437A1 (de) * 2005-02-18 2006-08-31 Man Roland Druckmaschinen Ag Bogendruckmaschine
PL1700692T3 (pl) 2005-03-10 2016-05-31 manroland sheetfed GmbH Urządzenie do transferu warstw nadających obraz z folii nośnej na arkusze drukarskie
JP2008540075A (ja) * 2005-05-04 2008-11-20 イスト メッツ ゲーエムベーハー 平面材料をコロナ処理する為の方法及び装置
DE102005038834A1 (de) * 2005-08-17 2007-02-22 Man Roland Druckmaschinen Ag Bogendruckmaschine
DE102006048523A1 (de) * 2005-12-27 2007-08-02 Man Roland Druckmaschinen Ag Überdruckbare Prägebeschichtung
DE102006056901A1 (de) 2005-12-27 2007-07-05 Man Roland Druckmaschinen Ag Prägebeschichtung für Folienbedruckstoffe
JP2008132723A (ja) * 2006-11-29 2008-06-12 Komori Corp 液体転移装置
EP2178704B1 (fr) 2007-08-09 2011-07-27 Manroland AG Traitement par plasma par compression
DE102007061398A1 (de) 2007-12-19 2009-06-25 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zum Erfassen einer Kante von durchsichtigen oder durchscheinenden Bogen
DE102009016360A1 (de) 2009-04-07 2010-10-14 Steinemann Technology Ag Hochleistungsoberflächenbehandlungsvorrichtung
DE102016109044B3 (de) 2016-05-17 2017-07-06 Leonhard Kurz Stiftung & Co. Kg Vorrichtung zur Oberflächenbehandlung eines Substrats
CN110637357A (zh) 2017-06-21 2019-12-31 惠普印迪格公司 真空工作台

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115958C2 (de) * 1981-04-22 1983-12-29 Hahne, Ernst August, 4123 Allschwill "Verfahren zum Anfeuchten eines flexiblen bahnförmigen und mit einer durch Trocknung verfestigten Beschichtung versehenen Trägermaterials
DE19912054A1 (de) * 1999-03-18 2000-09-21 Inst Oberflaechenmodifizierung Verfahren zum Bedrucken und Kaschieren von flexiblen Materialien
DE19957929A1 (de) * 1999-12-01 2001-06-07 Koenig & Bauer Ag Verfahren und Vorrichtung zum Behandeln der Oberflächen von Bedruckstoffen in Druckmaschinen
DE10020648A1 (de) * 2000-04-27 2001-10-31 Heidelberger Druckmasch Ag Bogendruckmaschine
DE10039073A1 (de) 2000-08-10 2002-02-28 Ist Metz Gmbh Vorrichtung und Verfahren zur Koronabehandlung von Flachmaterial
DE10041934A1 (de) * 2000-08-25 2002-03-07 Roland Man Druckmasch Verfahren und Vorrichtung zum Beschichten von Druckprodukten
DE10106385A1 (de) * 2000-10-10 2002-04-11 Andreas Altmeyer Foliendruckverfahren und Vorrichtung hierzu

Also Published As

Publication number Publication date
EP1418049A3 (fr) 2006-03-15
DE50312704D1 (de) 2010-06-24
EP1418049A2 (fr) 2004-05-12
DE10232255A1 (de) 2004-02-05

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