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EP1724114B1 - Machine d'impression rotative avec au moins un groupe d'impression - Google Patents

Machine d'impression rotative avec au moins un groupe d'impression Download PDF

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Publication number
EP1724114B1
EP1724114B1 EP06010014A EP06010014A EP1724114B1 EP 1724114 B1 EP1724114 B1 EP 1724114B1 EP 06010014 A EP06010014 A EP 06010014A EP 06010014 A EP06010014 A EP 06010014A EP 1724114 B1 EP1724114 B1 EP 1724114B1
Authority
EP
European Patent Office
Prior art keywords
blanket
cylinders
cylinder
printing
rubber
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.)
Not-in-force
Application number
EP06010014A
Other languages
German (de)
English (en)
Other versions
EP1724114A2 (fr
EP1724114A3 (fr
Inventor
Roman Herold
Peter Knauer
Josef Singler
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.)
Manroland AG
Original Assignee
Manroland 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 Manroland AG filed Critical Manroland AG
Publication of EP1724114A2 publication Critical patent/EP1724114A2/fr
Publication of EP1724114A3 publication Critical patent/EP1724114A3/fr
Application granted granted Critical
Publication of EP1724114B1 publication Critical patent/EP1724114B1/fr
Not-in-force 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
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/025—Multicolour printing or perfecting on sheets or on one or more webs, in one printing unit
    • 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
    • B41F13/193—Transfer cylinders; Offset cylinders

Definitions

  • the invention relates to an offset web-fed rotary printing press having at least one printing unit, which has two plate cylinder / blanket pairs, sleeve-shaped printing blankets in the form of sleeves being slidable on the blanket cylinders and a printing material web being printable between the blanket cylinders.
  • both the plate cylinder - also known as forme cylinder - and the blanket cylinders - also called transfer cylinders - have a so-called simple circumference. This means that in each case one turn of the plate cylinder and blanket cylinder, the plate cylinder rolls once on the blanket cylinder, because the circumferences of both cylinders are the same size.
  • the blanket cylinders have axial clamping channels in which the ends of the réellespannenden blankets on the blanket cylinders can be fixed.
  • Offset web-fed rotary presses with axial chucks in the blanket cylinders generate vibrations that adversely affect the quality of the print due to the relatively large width of the blanket cylinder pits.
  • these vibrations are greater, as increasingly makes the lack of rigidity of a simple large blanket cylinder adversely noticeable. Therefore, so far offset web presses have been equipped with so-called double-size blanket cylinders, ie, the blanket cylinders have twice the size of the plate cylinders, while the plate cylinders have a simple circumference.
  • the WO 03/016057 A1 discloses an offset web-fed rotary printing machine having at least one printing unit, which consists of a first printing unit with a first plate cylinder and a first blanket cylinder and a second printing unit with a second plate cylinder and a second blanket cylinder, wherein between the blanket cylinders a printing material web is feasible, so that they can be provided on both sides with a pressure, and wherein the plate cylinder can each be provided with a finite plate, the ends of which are fixed in clamping slots of the plate cylinder, and wherein on the blanket cylinder, a tubular blanket is pushed axially and the blanket cylinder a double circumference and the plate cylinder have a simple circumference, and wherein the lengths of the cylinders is more than 1400 mm, wherein the diameters of the cylinders are uniform in the axial direction.
  • the EP 0659 585 A1 discloses tubular rubber blankets having axially varying diameters or material properties.
  • the object of the present invention is to provide offset web-fed rotary printing presses for the use of sleeve technology, i. to allow the use of sleeve-shaped blankets, which may have a greater width than the previously known printing machines and in which printing substrate webs are thus printed with a large width, which can be used for the plate cylinder simple heights, without causing uncontrollably high bending vibrations.
  • a significant advantage of the offset web-fed rotary printing press according to the invention is that there is no uncontrollable high deflection on the blanket cylinders and, therefore, even in the case of wide, i.e. In machines for large web widths a high print quality is possible without a modification to the rubber cylinder diameters in the axial direction or different compressibilities or rubber layer thicknesses in the axial direction of the cylinder are required, thus ensuring a stable web promotion in the inventively constructed offset web-fed rotary printing press, and a good register pressure results.
  • a printing unit 20 of an offset web-fed rotary printing machine in which preferably a printing substrate 1 horizontally between two rubber cylinders 2, 3 can be passed, so that the printing substrate 1 can be provided on both sides with a pressure.
  • the blanket cylinders 2, 3 - also called transfer cylinder or transfer cylinder - according to the invention
  • an axially slidable on the blanket cylinder 2, 3 rubber sleeve as a sleeve-shaped blanket 4, 6 can be pushed.
  • the cylinders 2, 3 remain in the machine, the storage being uncovered only on one side of the cylinders 2, 3 for changing a rubber sleeve or a sleeve-shaped blanket 4, 6, so that the sleeve-shaped blankets 4 to be applied , 6 through the side wall axially on the blanket cylinder 2, 3 can be pushed.
  • the sleeve-shaped blankets 4, 6 comprise a metallic support, e.g. made of nickel or a carrier made of CFK, which is expandable by air, so that there is an easy application of the sleeve-shaped blankets 4, 6 on the cylinder 2, 3 through the side wall of the printing machine.
  • a rubber layer or rubber layer is compressible, outside the sleeve-shaped blanket 4, 6 each having a pressure surface, as indicated by the reference numeral 5 of the tubular blanket 4.
  • a pressure surface 5 can each be formed by a separate layer which forms the outer layer or outer layer of the tubular blanket 4 or 6.
  • sleeve-shaped blankets 4, 6 are also referred to as rubber sleeves and the rubber layers may be endless or they may have a shock, ie a gap, which may also be filled with a material.
  • the sleeve-shaped blankets must each be registered, ie applied in a certain circumferential position on the blanket cylinders 2, 3.
  • Each of the simply large plate cylinder with clamping slots 12, 13 for fixing the printing plates is an inking unit 14, 16 and a dampening unit 15, 17 associated with, so that arranged on the plate cylinders 10, 11 printing plates are fixable in a conventional manner.
  • the drawing shows dashed lines that conventional machines in which no Sleevetechnik is used, the blanket cylinders 2, 3 must have at least one axially extending clamping channel 18, 19 to fix the blanket to be placed each with its ends on the blanket cylinders 2, 3 ,
  • these clamping channels 18, 19 unnecessary in printing presses with Sleevetechnik, but hitherto machines were used with Sleevetechnik each with rubber cylinders with a simple scope, where, as stated, done to avoid pressure differences either modifications to the cylinder diameters in the axial direction or the compressibility or rubber layer thickness was formed differently in the axial direction, so that in such slender rubber cylinders the web conveying problems could be counteracted.
  • the inventive use of blanket cylinders with double circumference also improves the accessibility to the individual components of the Printing units 20 compared to machines with rubber cylinders, which have a simple circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)

Claims (5)

  1. Machine d'impression Offset à bobine comportant au moins une unité d'impression formée d'un premier groupe d'impression composé d'un premier cylindre porte-plaques (10) et d'un premier cylindre de blanchet (2) ainsi qu'un second groupe d'impression comprenant un second cylindre porte-plaques (11) et un second cylindre de blanchet (13) pour imprimer les deux faces d'une bande de matière d'impression (1) passant entre les cylindres de blanchet (2, 3),
    - les cylindres porte-plaques (2, 3) étant munis chacun d'une plaque de longueur finie dont les extrémités sont fixées dans des fentes de serrage (12, 13) du cylindre porte-plaques (10, 11) et
    - un blanchet tubulaire (4, 6) est emmanché axialement sur les cylindres de blanchet (2, 3) et
    - les cylindres de blanchet (2, 3) ont une périphérie double et les cylindre porte-plaques (10, 11) ont une périphérie simple,
    - la longueur des cylindres (2, 3, 10, 11) étant supérieur à 1400 mm et
    - le diamètre des cylindres (2, 3, 10, 11) dans la direction axiale est identique,
    caractérisée en ce que
    - le diamètre des blanchets tubulaires (4, 6) dans la direction axiale est identique
    - les blanchets tubulaires (4, 6) comportent chacun un manchon de support, métallique, expansé par de l'air, plusieurs couches de caoutchouc appliquées sur le manchon de support et parmi celles-ci une couche de caoutchouc est compressible et une surface d'impression (5) réalisée sous la forme d'une couche séparée constituant la surface extérieure du blanchet et
    - l'épaisseur et la rigidité des couches en caoutchouc du blanchet tubulaire (4, 6) sont identiques dans la direction axiale.
  2. Machine d'impression rotative Offset à bobine comportant au moins une unité d'impression selon la revendication 1,
    caractérisée en ce que
    un cylindre de blanchet (3) est entraîné par un moteur (7) et par sa denture frontale, il entraîne le cylindre porte-plaque (11) associé.
  3. Machine d'impression rotative Offset à bobine comportant au moins une unité d'impression selon la revendication 1 ou 2,
    caractérisée en ce que
    les cylindres de blanchet (2, 3) ont un refroidissement intérieur.
  4. Machine d'impression rotative Offset à bobine comportant au moins une unité d'impression selon l'une des revendications précédentes,
    caractérisée en ce que
    la couche de caoutchouc (5) d'un blanchet tubulaire (4) présente un intervalle dans la direction axiale et
    le cylindre de blanchet (2) comporte un marquage de registre périphérique par rapport auquel se positionne le blanchet tubulaire (4) après avoir été emmanché sur le cylindre de blanchet (2), en étant mis en correspondance de registre dans la direction périphérique.
  5. Machine d'impression rotative Offset à bobine comportant au moins une unité d'impression selon l'une des revendications précédentes,
    caractérisée en ce que
    chaque cylindre de blanchet (2, 3) est relié à un moteur distinct (7) et chaque fois le cylindre porte-plaque (13, 11) correspondant est entrainé par le cylindre porte blanchet (2, 3) associé par une denture frontale et un encrier (16, 14) et un dispositif de mouillage (17, 15) sont associes à chaque cylindre porte-plaques (10, 11).
EP06010014A 2005-05-19 2006-05-16 Machine d'impression rotative avec au moins un groupe d'impression Not-in-force EP1724114B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005022986A DE102005022986A1 (de) 2005-05-19 2005-05-19 Rollenrotationsdruckmaschine mit mindestens einem Druckwerk

Publications (3)

Publication Number Publication Date
EP1724114A2 EP1724114A2 (fr) 2006-11-22
EP1724114A3 EP1724114A3 (fr) 2007-03-28
EP1724114B1 true EP1724114B1 (fr) 2010-12-01

Family

ID=36910775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06010014A Not-in-force EP1724114B1 (fr) 2005-05-19 2006-05-16 Machine d'impression rotative avec au moins un groupe d'impression

Country Status (4)

Country Link
US (1) US20070006753A1 (fr)
EP (1) EP1724114B1 (fr)
CA (1) CA2547426A1 (fr)
DE (2) DE102005022986A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007008719A1 (de) * 2007-02-22 2008-08-28 Man Roland Druckmaschinen Ag Übertragungszylinder einer Druckmaschine
DE102014108524A1 (de) * 2014-06-17 2015-12-17 Manroland Web Systems Gmbh Druckwerk für eine Rotationsdruckmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681035A (en) * 1985-03-14 1987-07-21 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Rotary offset printing machine system
DE4217793C1 (de) * 1992-05-29 1993-12-09 Roland Man Druckmasch Offset-Gummituch und Verfahren zu dessen Herstellung
DE4337554A1 (de) * 1992-12-16 1994-06-23 Heidelberger Druckmasch Ag Lithographische Offsetdruckmaschine
DE4436973C2 (de) * 1993-12-21 2003-06-26 Heidelberger Druckmasch Ag Gummituch mit variierendem Profil und Verfahren zu seiner Herstellung
US5553544A (en) * 1995-04-12 1996-09-10 Heidelberg Harns Inc. Plate cylinder
EP0862999B1 (fr) * 1997-03-04 2002-02-06 MAN Roland Druckmaschinen AG Presse à bobines pour un changement de production rapide
DE19815294B4 (de) * 1997-04-18 2010-09-23 Goss International Americas, Inc.(N.D.Ges.D. Staates Delaware) Rollenrotations-Zeitungsdruckmaschine
DE19911180C2 (de) * 1999-03-12 2001-02-01 Koenig & Bauer Ag Druckwerk für eine Rotationsdruckmaschine
ATE438508T1 (de) * 1999-12-02 2009-08-15 Koenig & Bauer Ag Druckwerk einer rotationsdruckmaschine
ATE312715T1 (de) * 2000-07-22 2005-12-15 Koenig & Bauer Ag Druckeinheit einer offsetdruckmaschine mit trennbaren gestellmodulen
WO2003016057A1 (fr) * 2001-08-03 2003-02-27 Koenig & Bauer Aktiengesellschaft Elements d'impression pour presse d'imprimerie
DE20204412U1 (de) * 2002-03-19 2002-05-29 Polywest Kunststofftechnik Saueressig & Partner GmbH & Co. KG, 48683 Ahaus Hülse für den Flexodruck
DE10234329B3 (de) * 2002-07-26 2004-02-19 Man Roland Druckmaschinen Ag Vorrichtung zur Handhabung einer Hülse auf einem Zylinder einer Druckmaschine

Also Published As

Publication number Publication date
DE502006008415D1 (de) 2011-01-13
US20070006753A1 (en) 2007-01-11
DE102005022986A1 (de) 2006-11-23
EP1724114A2 (fr) 2006-11-22
CA2547426A1 (fr) 2006-11-19
EP1724114A3 (fr) 2007-03-28

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