EP1908589A2 - Unité d'impression d'une machine d'impression - Google Patents

Unité d'impression d'une machine d'impression Download PDF

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Publication number
EP1908589A2
EP1908589A2 EP07018888A EP07018888A EP1908589A2 EP 1908589 A2 EP1908589 A2 EP 1908589A2 EP 07018888 A EP07018888 A EP 07018888A EP 07018888 A EP07018888 A EP 07018888A EP 1908589 A2 EP1908589 A2 EP 1908589A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
axial
printing
printing unit
base body
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Withdrawn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
EP07018888A
Other languages
German (de)
English (en)
Other versions
EP1908589A3 (fr
Inventor
John Dr. Thomas
Thomas Dr. Kandlbinder
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
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 Manroland AG, MAN Roland Druckmaschinen AG filed Critical Manroland AG
Publication of EP1908589A2 publication Critical patent/EP1908589A2/fr
Publication of EP1908589A3 publication Critical patent/EP1908589A3/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Withdrawn legal-status Critical Current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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • 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
    • 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 printing unit of a printing press according to the preamble of claim 1.
  • Printing units of printing presses have a form cylinder, a rolling on the forme cylinder transfer cylinder, a rolling on the transfer cylinder impression cylinder, an inking unit and possibly a dampening unit.
  • ink can be applied to the forme cylinder, namely to at least one printing forme positioned on the same.
  • the forme cylinder is also referred to as a plate cylinder.
  • the transfer cylinder which carries at least one blanket or rubber blanket sleeve positioned thereon, transfers the printing ink to a printing substrate, wherein the printing substrate is movable through a printing nip formed between the transfer cylinder and the impression cylinder.
  • the transfer cylinder is also referred to as a rubber cylinder.
  • the counter-pressure cylinder of a printing unit of a printing unit is designed either as a so-called satellite cylinder, which rolls on a plurality of transfer cylinders of different printing units of the printing unit, or as a transfer cylinder of another printing unit of the printing unit.
  • a defined pressure is required on the one hand between the forme cylinder and the transfer cylinder and on the other hand between the transfer cylinder and the impression cylinder.
  • the pressure between the cylinders along the axial extension thereof may vary, so that a non-uniform ink transfer over the width or axial extent of the cylinder is formed.
  • the print quality is adversely affected.
  • Such a non-uniform ink transfer as a result of deflections of the rolling cylinders rolling against each other is particularly noticeable in relatively slender cylinders, which have a relatively large width or axial extent and a relatively small diameter.
  • the present invention is based on the problem to provide a novel printing unit of a printing press.
  • This problem is solved by a printing unit according to claim 1.
  • at least one cylinder namely the forme cylinder and / or the transfer cylinder and / or the impression cylinder, has a graduated diameter along its axial extent.
  • the forme cylinder and / or the transfer cylinder and / or the impression cylinder may have such a stepped diameter along its axial extent, it is preferred that only the impression cylinder has a stepped diameter along an axial extent.
  • the present invention relates to a printing unit of a printing machine, in particular a web-fed rotary printing press, wherein such a printing unit has a forme cylinder, a transfer cylinder, an impression cylinder, an inking unit and preferably a dampening unit.
  • a printing unit has a forme cylinder, a transfer cylinder, an impression cylinder, an inking unit and preferably a dampening unit.
  • the inking unit printing ink can be applied to the forme cylinder, namely to printing forms which are positioned on the forme cylinder.
  • the forme cylinder is also referred to as a plate cylinder.
  • the transfer cylinder transfers with the positioned on it at least one blanket or a blanket sleeve, the ink on a substrate to be printed, which is moved through a gap between the transfer cylinder and the impression cylinder through.
  • the transfer cylinder is also referred to as a rubber cylinder.
  • the impression cylinder of a printing unit of a printing unit can either be a satellite cylinder rolling on a plurality of transfer cylinders of the printing unit or a transfer cylinder of another printing unit of the printing unit.
  • Fig. 1 shows a highly schematic transfer cylinder or blanket cylinder 10 of a printing unit according to the invention a printing press, wherein the transfer cylinder 10 has a cylinder base 11, on both sides of each a bearer ring 12 and a respective shaft journal 13 is positioned, the bearer 12 of the setting of Nominal dimension for the transfer cylinder 10 and the shaft journal 13 of the rotatable storage of the same serve on a machine frame.
  • the cylinder body 11 has along its axial extent over a stepped diameter, wherein in the illustrated embodiment of FIG. 1, the cylinder body 11 seen in axial extent of the same is divided into three segments 14, 15 and 16, in such a way that the middle segment 15 has a larger diameter than the lateral segments 14 and 16.
  • a blanket 17 is arranged with the same thickness.
  • the segments 14, 15 and 16 of the cylinder main body 11 have a slightly smaller outer diameter than the bearer rings 17, but then, when the blankets 17 are positioned on the segments 14, 15 and 16, has the transfer cylinder 10 in the region of the segments 14, 15 and 16 over a slightly larger outer diameter than the bearer rings 12th
  • the transfer cylinder 10 of a printing unit in the sense of FIG. 1 is executed.
  • Fig. 2 shows a transfer cylinder 18 of a printing unit of a printing machine according to a second embodiment of the present invention, wherein the transfer cylinder 18 of FIG. 2 as well as the transfer cylinder 10 of FIG. 1 a cylinder body 19 and on both sides of the cylinder body 19 each have a bearer ring 20 and a shaft journal 21 has.
  • the cylinder main body 19 of the transfer cylinder 18 has a uniform diameter along its axial extent which, according to FIG. 2, is smaller than the diameter of the bearer rings 20.
  • the cylinder main body 19 with the uniform diameter at different axial sections 22, 23 and 24 blankets 25, 26 and 27, respectively, the blankets having different thicknesses.
  • the rubber blanket 26 arranged on the middle axial section 23 has a greater thickness than the blankets 25 and 27 arranged on the lateral axial sections 22 and 24.
  • the diameter is greater than in the region of lateral segments 14, 16 or lateral axial sections 22 and 24, so as to the deflection of the cylinder to provide a uniform pressure along the axial extent of the cylinder and thus to compensate for or compensate for a uniform color transmission.
  • a transfer cylinder with a graduated in axial extent diameter can also be provided by using a cylinder body with a uniform axial diameter and rubber blankets with the same thickness for positioning on the cylinder body, but at least an intermediate element is arranged between the central axial section of the cylinder base body and the or each rubber blanket to be positioned on the central axial section so that the diameter of the transfer cylinder is again increased in the central axial section relative to lateral axial sections.
  • This intermediate element is preferably a shim that is either connected to the cylinder main body in the middle axial section thereof or to the respective rubber blanket.
  • the transfer cylinder in the sense of the present invention in axial extent has a stepped diameter.
  • the forme cylinder of a printing unit can also be designed in the above manner, with the difference that no blankets but a lot more printing plates are then positioned on the cylinder main body.
  • Fig. 3 shows a counter-pressure cylinder 28 of a printing unit in the sense of the present invention, which has a stepped diameter in its axial extent.
  • the counter-pressure cylinder 28 of FIG. 3 has a cylinder main body 29, which is divided in the embodiment of FIG. 3 in the axial direction into three segments 30, 31 and 32 with different diameters such that the central segment 31 has a larger diameter than the both side segments 30 and 32.
  • Side of the cylinder body 29 in turn follow Schmitz rings 33 and shaft journal 34 at.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Handling Of Sheets (AREA)
EP07018888A 2006-09-29 2007-09-26 Unité d'impression d'une machine d'impression Withdrawn EP1908589A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006046521A DE102006046521A1 (de) 2006-09-29 2006-09-29 Druckwerk einer Druckmaschine

Publications (2)

Publication Number Publication Date
EP1908589A2 true EP1908589A2 (fr) 2008-04-09
EP1908589A3 EP1908589A3 (fr) 2009-07-29

Family

ID=39092297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018888A Withdrawn EP1908589A3 (fr) 2006-09-29 2007-09-26 Unité d'impression d'une machine d'impression

Country Status (6)

Country Link
US (1) US20080087179A1 (fr)
EP (1) EP1908589A3 (fr)
JP (1) JP2008087481A (fr)
CN (1) CN101186140A (fr)
CA (1) CA2605319A1 (fr)
DE (1) DE102006046521A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9849709B2 (en) * 2010-03-05 2017-12-26 Shuhou Co., Ltd. Printing blanket, printing device, and method of manufacturing printing blanket
CN102490451A (zh) * 2011-11-17 2012-06-13 天津长荣印刷设备股份有限公司 一种有可拆装垫板的承印滚筒及其工作方法
KR101375129B1 (ko) * 2013-01-09 2014-03-20 주식회사 보성산업롤 골판지 인쇄기용 급지 롤러
KR101419714B1 (ko) * 2013-01-09 2014-07-17 주식회사 보성산업롤 골판지 인쇄기용 급지 롤러
DE102013103712A1 (de) * 2013-04-12 2014-10-16 Manroland Web Systems Gmbh Druckwerk und Gummituchplatte für ein Druckwerk
JP7032559B2 (ja) * 2018-04-05 2022-03-08 エシティ・ハイジーン・アンド・ヘルス・アクチエボラグ フレキソ印刷デバイスおよび印刷方法
CN109484008A (zh) * 2018-10-18 2019-03-19 南宁七彩虹印刷机械有限责任公司 一种新型印刷机压印滚筒设计方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050229800A1 (en) 2004-04-20 2005-10-20 Heidelberger Druckmaschinen Ag Plate cylinder with larger diameter central image area
EP1637326A2 (fr) 2004-09-16 2006-03-22 Koenig & Bauer Aktiengesellschaft Groupe d'impression offset comprenant un cylindre de transfert avec un recouvrement élastique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257746B3 (de) * 2002-12-10 2004-06-24 Man Roland Druckmaschinen Ag Formzylinder einer Rotationsdruckmaschine, insbesondere einer Offsetdruckmaschine
DE3419764C2 (de) * 1984-05-26 1986-05-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum seitlichen Transportieren überschüssiger Farbe, Farb-/Wasseremulsion oder Wasser
DE3540912A1 (de) * 1985-11-19 1987-05-21 Roland Man Druckmasch Vorrichtung zum seitlichen transportieren ueberschuessiger farbe, farb-/wasseremulsion oder wasser
DE9005141U1 (de) * 1990-05-07 1991-06-13 List, Klaus, Ing.(grad.), Lügumskloster Druckwalze
DE29623426U1 (de) * 1996-12-20 1998-05-28 Koenig & Bauer-Albert Aktiengesellschaft, 97080 Würzburg Walze
JP3510452B2 (ja) * 1997-05-13 2004-03-29 三菱重工業株式会社 印刷機，印刷ユニットおよび筒状ブランケットセット
US6098540A (en) * 1998-08-10 2000-08-08 Heidelberger Druckmaschinen Ag Apparatus and method for reducing mottling in printing presses
US6062138A (en) * 1999-03-30 2000-05-16 Howard A. Fromson Offset printing having blanket cylinder with blanket having different thicknesses
CN1323833C (zh) * 2001-10-05 2007-07-04 柯尼格及包尔公开股份有限公司 卷筒纸印刷机
US7073435B2 (en) * 2003-07-11 2006-07-11 Goss International Americas, Inc. Printing blanket with convex carrier layer
DE102004056389B4 (de) * 2004-09-16 2008-05-21 Koenig & Bauer Aktiengesellschaft Druckwerk einer Offsetdruckmaschine mit mindestens einem Formzylinder und einem Übertragungszylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050229800A1 (en) 2004-04-20 2005-10-20 Heidelberger Druckmaschinen Ag Plate cylinder with larger diameter central image area
EP1637326A2 (fr) 2004-09-16 2006-03-22 Koenig & Bauer Aktiengesellschaft Groupe d'impression offset comprenant un cylindre de transfert avec un recouvrement élastique

Also Published As

Publication number Publication date
CA2605319A1 (fr) 2008-03-29
EP1908589A3 (fr) 2009-07-29
US20080087179A1 (en) 2008-04-17
DE102006046521A1 (de) 2008-04-03
CN101186140A (zh) 2008-05-28
JP2008087481A (ja) 2008-04-17

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