EP1428660B1 - Cylindre porte-blanchet pour une machine d'impression offset - Google Patents

Cylindre porte-blanchet pour une machine d'impression offset Download PDF

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Publication number
EP1428660B1
EP1428660B1 EP03028072A EP03028072A EP1428660B1 EP 1428660 B1 EP1428660 B1 EP 1428660B1 EP 03028072 A EP03028072 A EP 03028072A EP 03028072 A EP03028072 A EP 03028072A EP 1428660 B1 EP1428660 B1 EP 1428660B1
Authority
EP
European Patent Office
Prior art keywords
blanket cylinder
blanket
surface region
cylinder
film
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
EP03028072A
Other languages
German (de)
English (en)
Other versions
EP1428660A1 (fr
Inventor
Peter Knauer
Martin Endisch
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
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1428660A1 publication Critical patent/EP1428660A1/fr
Application granted granted Critical
Publication of EP1428660B1 publication Critical patent/EP1428660B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B41F13/193—Transfer cylinders; Offset cylinders

Definitions

  • the invention relates to a blanket cylinder according to the preamble of claim 1.
  • the so-called channelless pressure in particular the sleeve technique, which is characterized by a printing plate applied channelless on a sleeve and / or rubber blanket applied without a gap, allows a reduced rigidity because of the reduced vibration excitation due to the missing cylinder channels.
  • the length / thickness ratio of the printing cylinder, or their relative stiffness with respect to a deflection becomes increasingly unfavorable.
  • the shape and position of the impression cylinders undesirably change from one another, i. that the impression cylinders bend.
  • the change in position as a result of a deflection changes the pressure provision, ie the contact pressure between the pressure cylinders interacting in the printing unit, which is seen over the cylinder width uneven.
  • this pressure provision is usually determined by the measurement of the so-called impression width, ie the width of the zone at each other Employed, ie cylinders driven by pressing defined the contact area of the cylinder. This measurement is particularly easy in offset printing, since always one cylinder of a pair of cylinders has a compressible (soft) surface.
  • a thickness profile is varied in that the lateral surface in the axial direction of the cylinder assumes a convex or concave shape on the blanket cylinder. That is, in particular, concaved rubber blankets / rubber sleeves and kankav ground cylindrical surfaces are described in connection with flat blankets / rubber sleeves.
  • EP 0 704 301 B1 describes a thin intermediate layer for the adjustment and better anchoring of a blanket on a blanket cylinder in the form of a self-adhesive plastic film.
  • the surface of the blanket cylinder according to the thickness of the thin film on a stepped area in the form of a diameter reduction.
  • This measure can be applied to both gapless and gapy rubber sleeves.
  • Fig. 1 shows a blanket cylinder 1 with a concave ground cylindrical surface 2, for which a flat blanket can be used, to which a concave surface profile is forced, so that the lateral ends of the surface of the blanket radially further from the axis of rotation of the blanket cylinder located below 1 are removed as the center of the blanket.
  • the resulting surface speed profile improves the conveying behavior with respect to a paper web and avoids wrinkling. Nevertheless, the grinding process on the blanket cylinder is complex.
  • FIG. 2 shows a blanket cylinder 3 according to the invention with a stepped surface region 4 running parallel to the axis of rotation in the form of a constant reduction in diameter.
  • a concave at least on the outside made film 5 is inserted, which completely fills the surface area 4 and the outer surface of the blanket cylinder 3 indirectly gives a symmetrical to the center concave shape.
  • the concave-made film 5 may be a self-adhesive plastic film that is easily replaceable. Of course, the film 5 can also be designed as a replaceable sleeve itself.
  • the foil 5 helps on the one hand to adjust the rubber blanket (channeled or as a sleeve) on the cylinder and on the other hand to provide optimal adhesion to the roll core.
  • Fig. 3 shows a blanket cylinder 6 according to the Fig. 2, but which has a stepped surface region 7 which is ground concave symmetrically to the center. In this surface region 7, a flat or concave produced film 8 can be introduced.

Landscapes

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

Claims (3)

  1. Cylindre porte-blanchet d'un machine à imprimer offset destinée à recevoir un blanchet plat en matière élastiquement déformable ou un manchon en caoutchouc,
    caractérisé en ce que
    sur le côté impression, on prévoit une zone de surface décalée (4, 7) formant une réduction du diamètre, dans laquelle on place une feuille (5, 8) qui remplit la zone de surface (4, 7).
  2. Cylindre porte-blanchet selon la revendication 1,
    caractérisé en ce que
    la zone de surface décalée (7) est polie de façon légèrement concave symétriquement au milieu du cylindre porte-blanchet (6), et dans cette zone on insère une feuille (8) qui remplit la zone de surface (7).
  3. Cylindre porte-blanchet selon la revendication 1,
    caractérisé en ce que
    la zone de surface décalée (4) est essentiellement parallèle à l'axe de rotation du cylindre porte-blanchet (3) et prévue sous la forme d'une réduction du diamètre pour l'essentiel constante, est dans cette zone on insère une feuille (5) concave au moins sur le côté extérieur, et qui remplit la zone de surface (4).
EP03028072A 2002-12-11 2003-12-09 Cylindre porte-blanchet pour une machine d'impression offset Expired - Fee Related EP1428660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10258048A DE10258048A1 (de) 2002-12-11 2002-12-11 Gummituchzylinder für Offset-Druckmaschinen
DE10258048 2002-12-11

Publications (2)

Publication Number Publication Date
EP1428660A1 EP1428660A1 (fr) 2004-06-16
EP1428660B1 true EP1428660B1 (fr) 2007-05-23

Family

ID=32319066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028072A Expired - Fee Related EP1428660B1 (fr) 2002-12-11 2003-12-09 Cylindre porte-blanchet pour une machine d'impression offset

Country Status (4)

Country Link
US (1) US6854389B2 (fr)
EP (1) EP1428660B1 (fr)
JP (2) JP2004188974A (fr)
DE (2) DE10258048A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103712A1 (de) * 2013-04-12 2014-10-16 Manroland Web Systems Gmbh Druckwerk und Gummituchplatte für ein Druckwerk
ES2929325T3 (es) * 2019-05-09 2022-11-28 Heidelberger Druckmasch Ag Dispositivo para medir elevaciones en la superficie de un cuerpo giratorio

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082601B (de) * 1958-10-31 1960-06-02 Kartonagenmaschinenwerk Kama V Vorrichtungen zum Spannen des Gummituches auf Druckzylindern
DE2701670A1 (de) * 1977-01-17 1978-07-20 Maschf Augsburg Nuernberg Ag Offset-rotationsdruckmaschine
DE10257746B3 (de) * 2002-12-10 2004-06-24 Man Roland Druckmaschinen Ag Formzylinder einer Rotationsdruckmaschine, insbesondere einer Offsetdruckmaschine
DE3410638A1 (de) * 1984-03-22 1985-10-03 Albert Handtmann ELTEKA GmbH & Co KG, 7950 Biberach Walze fuer druck- oder papiermaschinen
US4654571A (en) * 1985-09-16 1987-03-31 Hinds Walter E Single plane orthogonally movable drive system
JPH06246896A (ja) * 1993-02-26 1994-09-06 Ryobi Ltd オフセット両面印刷機
DE4436973C2 (de) * 1993-12-21 2003-06-26 Heidelberger Druckmasch Ag Gummituch mit variierendem Profil und Verfahren zu seiner Herstellung
US6105498A (en) * 1993-12-21 2000-08-22 Heidelberger Druckmaschinen Ag Varying profile cylinder blanket
DE4432816A1 (de) * 1994-09-15 1996-03-21 Roland Man Druckmasch Druckwalze für den kanallosen Druck
DE29612105U1 (de) * 1996-07-11 1996-08-22 Roland Man Druckmasch Walze in einer Druckmaschine
ES2247820T3 (es) 1998-05-25 2006-03-01 Jennissen, Herbert P. Analizador de cizallamiento de circulacion para moleculas biologicas activas en capas de liquidos en superficies, procedimiento para los analisis de un liquido y procedimiento para determinar un espesor de una capa de liquido ultrafina.
FR2789347B1 (fr) * 1999-02-04 2001-04-06 Rollin Sa Blanchet a proprietes de surface variables pour machine a imprimer
US6513425B1 (en) * 1999-05-05 2003-02-04 Metso Paper Karlstad Ab Assembly for positioning a heater in a relation to a roll, and a press device with such an assembly
JP3069098B1 (ja) * 1999-09-22 2000-07-24 株式会社東京機械製作所 印刷機のブランケット装着装置及びブランケット

Also Published As

Publication number Publication date
US6854389B2 (en) 2005-02-15
US20040123755A1 (en) 2004-07-01
JP2007302004A (ja) 2007-11-22
DE50307316D1 (de) 2007-07-05
DE10258048A1 (de) 2004-06-24
EP1428660A1 (fr) 2004-06-16
JP2004188974A (ja) 2004-07-08

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