EP0943433A1 - Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset - Google Patents

Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset Download PDF

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Publication number
EP0943433A1
EP0943433A1 EP98810217A EP98810217A EP0943433A1 EP 0943433 A1 EP0943433 A1 EP 0943433A1 EP 98810217 A EP98810217 A EP 98810217A EP 98810217 A EP98810217 A EP 98810217A EP 0943433 A1 EP0943433 A1 EP 0943433A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
rubber
bearer rings
printing machine
bearer
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.)
Granted
Application number
EP98810217A
Other languages
German (de)
English (en)
Other versions
EP0943433B1 (fr
Inventor
Georg Götting
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.)
Grapha Holding AG
Original Assignee
Grapha Holding 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 Grapha Holding AG filed Critical Grapha Holding AG
Priority to EP98810217A priority Critical patent/EP0943433B1/fr
Priority to DE59804990T priority patent/DE59804990D1/de
Priority to JP11067152A priority patent/JP2000033686A/ja
Priority to US09/268,689 priority patent/US6314881B1/en
Publication of EP0943433A1 publication Critical patent/EP0943433A1/fr
Application granted granted Critical
Publication of EP0943433B1 publication Critical patent/EP0943433B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B41F13/21—Bearer rings

Definitions

  • the invention relates to a printing unit for a printing press, in particular offset rotary machine, with at least one Plate cylinder, a rubber cylinder and an impression cylinder or another rubber cylinder and another Plate cylinder.
  • a printing unit of this type has become known from EP-A-0 531 880.
  • the elements involved in the printing process such as gears, bearings and cylinders, have to be manufactured and assembled with very high precision, since otherwise printing defects in the form of stripes, dot widening or duplication phenomena occur.
  • Such a lack of pressure is also the so-called channel strip, which appears more and more with increasing machine speed.
  • the bearer rings prevent the cylinders from reducing their spacing in the cylinder channels, where the compressive stress collapses briefly without bearer rings, and then slightly diverge again when the pressure is subsequently used.
  • the use of the bearer rings mentioned has the disadvantage that that the distances between the interacting cylinders are not are adjustable.
  • the printing tension i.e. the distance between the rubber and the impression cylinder be adjustable to adapt to different Allow paper thicknesses or paper surfaces.
  • the elevator strength on the rubber cylinder be changed, which in turn changes the compressive stress changed between rubber and plate cylinder-
  • the compressive stress should be constant. So that should also Lift strength of the plate can be changed. This in turn changed the print length, which is not permitted in many cases is.
  • the invention has for its object a printing unit to create the type mentioned without sacrificing the benefits of the bearer rings infinitely adjustable center distances for rubber and impression cylinders or for rubber-rubber cylinders To enable rubber-rubber printing units.
  • the task is in a generic printing unit solved that the rubber cylinder on both ends each has a conical bearer ring that is under pressure on a conical bearer ring of the impression cylinder or the further rubber cylinder expires.
  • the center distance between the rubber and the impression cylinder or between the two blanket cylinders thereby adjust continuously, for example by means of a spindle of the impression cylinder in its axial direction is moved. The center distance between the plate and this does not change the rubber cylinder.
  • a backlash in drive gears can be Further development of the invention is particularly simply ineffective make when the rolling diameter of the bearer rings on the driving cylinder is smaller than the rolling diameter of the Bearings on the driven cylinder, the said Gears have the same number of teeth. Between Bearings create a frictional force, which a makes existing tooth play ineffective. Such a tooth game arises when the distance between the axles increases the two cylinders.
  • the printing unit 30 shown in FIG. 1 has a conventional one Plate cylinder 1 on the side plates 4 and 5 is stored.
  • the storage not shown here is here trained as usual.
  • the plate cylinder 1 is cylindrical Bearings 6 and 7 provided on cylindrical Unroll bearer rings 8 and 9 of a rubber cylinder.
  • To attach the pressure plates not shown here the plate cylinder 1 is a known clamping device 19 on.
  • the plates are attached to this at bent edges.
  • the rubber cylinder 2 also has a clamping device 20 with which the rubber blanket, not shown here is spanned. On the two jigs 19 and 20 there is a gap between the clamping edges for example 8 mm, which is the case with printing units according to the prior art Technology can cause the above-mentioned channel blow.
  • the rubber cylinder 2 has additional on both sides conical bearer rings 10 and 11 on conical Unroll bearer rings 12 and 13 of an impression cylinder 3.
  • cones 26 and 27 of the bearer rings 10 and 11 on the blanket cylinder 2 in the same direction and same counter angle.
  • Cones 28 and 29 of the bearer rings 12 and 13 have the opposite direction and the same cone angle like the cones 26 and 27 of the bearer rings 10 and 11.
  • the shaft ends 22 of the rubber cylinder are by springs 41 loaded and thereby roll the bearer rings 8, 9 of the blanket cylinder 2 on the bearer rings 6, 7 of the plate cylinder 1 under pressure.
  • a spindle 14 is arranged, with which the impression cylinder 3 is displaceable in its axial direction is. With such a shift, the center distance changes A between rubber 2 and impression cylinder 3, while the center distance B between the plate 1 and the rubber cylinder 2 remains unchanged.
  • a further spindle 15 is also attached to the side plate 4, with which the plate cylinder 1 axially displaceable is, for example, the print image on the substrate adjust laterally. Change at such a shift however, the center distances A and B of cylinders 1, 2 and 3 Not.
  • FIG. 3 shows a printing unit 40 according to the invention, at which a plate cylinder 31 conical bearer rings 35 and 37 which also on conical bearer rings 36 and 38 roll of a rubber cylinder 32.
  • the bearer rings of the rubber cylinder 32 in turn roll on bearer rings 12 and 13 of the impression cylinder 33.
  • the provided at the printing unit 30 cylindrical bearer rings 8 and 9 are in this embodiment not mandatory.
  • the impression cylinder 33 can also be changed here by means of a spindle 14 Center distance between the cylinders 32 and 33 in the axial direction be moved.
  • a spindle 34 which on a fixed frame part 39 is supported here three cylinders 31, 32, and 33 axially by the same amount can be moved to adjust the print image laterally. The center distances are not changed here.
  • the cylinders 1 to 3 or 31 to 33 with gears 16, 17 and 18 driven In the printing unit 30 as well as in the printing unit 40, the cylinders 1 to 3 or 31 to 33 with gears 16, 17 and 18 driven.
  • the gears 17 and 18, which the of the center distance adjustable cylinders 2 and 3 or 32 and 33 drive must be set for the smallest center distance so as not to jam. If the center distance is increased, so you get a backlash that is undesirable, because it creates printing problems. This play of teeth can by per se known and not shown idler gears To get picked up.
  • the tooth play mentioned can, however, be skilful Make the selection of the bearer ring diameter ineffective.
  • the Rolling diameter of the bearer rings on the driving cylinder for example, the cylinder 3 or 33 smaller than that Rolling diameter of the bearer rings on the driven cylinder,
  • the driven one Cylinder according to the ratio of the above Turn the rolling diameter more slowly than the driving cylinder.
  • the cylinders are forced at the same speed to run.
  • a relative movement occurs in the circumferential direction. Since these bearer rings 2 and 3 or 32 and 33 rolling under pressure on each other arises between them a frictional force that makes an existing backlash ineffective and eliminates the need for complex idler gears.
  • the printing unit according to the invention can also have four working cylinders in the order: plate, rubber, rubber and plate cylinders exhibit.
  • the two are Rubber cylinders on their faces with conical bearer rings provided and can be steplessly spaced axially from each other can be set.
  • the printing unit 30 would then be the Impression cylinder 3 by another blanket cylinder and replaced another plate cylinder.
  • This other rubber cylinder and the rubber cylinder 2 would then each be conical Bearings provided and can be spaced apart can be adjusted continuously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP98810217A 1998-03-16 1998-03-16 Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset Expired - Lifetime EP0943433B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98810217A EP0943433B1 (fr) 1998-03-16 1998-03-16 Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset
DE59804990T DE59804990D1 (de) 1998-03-16 1998-03-16 Druckwerk für eine Druckmaschine, insbesondere Offset-Rotationsmaschine
JP11067152A JP2000033686A (ja) 1998-03-16 1999-03-12 印刷機、特にオフセット輪転機用の印刷装置
US09/268,689 US6314881B1 (en) 1998-03-16 1999-03-16 Printing group for a printing press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98810217A EP0943433B1 (fr) 1998-03-16 1998-03-16 Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset

Publications (2)

Publication Number Publication Date
EP0943433A1 true EP0943433A1 (fr) 1999-09-22
EP0943433B1 EP0943433B1 (fr) 2002-07-31

Family

ID=8235985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810217A Expired - Lifetime EP0943433B1 (fr) 1998-03-16 1998-03-16 Unité d'impression pour une machine à imprimer, en particulier une machine rotative d'impression offset

Country Status (4)

Country Link
US (1) US6314881B1 (fr)
EP (1) EP0943433B1 (fr)
JP (1) JP2000033686A (fr)
DE (1) DE59804990D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2241441A1 (fr) * 2009-04-15 2010-10-20 Müller Martini Holding AG Dispositif de traitement d'un matériau en bande entre deux cylindres de travail pouvant être entraînés de manière opposée
DE102010001747A1 (de) 2010-02-10 2011-08-11 KOENIG & BAUER Aktiengesellschaft, 97080 Schmitzring sowie ein Verfahren zum reversiblen Verändern eines Außenradius eines Schmitzrings
DE102016215761A1 (de) 2016-08-23 2018-03-01 Koenig & Bauer Ag Zylinder für eine Bogen verarbeitende Maschine

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2827544B1 (fr) * 2001-07-23 2003-10-17 Goss Systemes Graphiques Nante Presse offset a montage de cylindre ameliore
US6997108B2 (en) * 2001-08-21 2006-02-14 Mitsubishi Heavy Industries, Ltd. Plate-making type printing press, multi-color printing press and plate-making type printing method
DE60314479T2 (de) * 2002-08-19 2008-02-21 Bobst S.A. Rotationspresse zum Anbringen von Bildern auf einem Substrat
DE10327490B4 (de) * 2003-06-17 2006-09-21 Koenig & Bauer Ag Druckeinheit einer Rotationsdruckmaschine
DE102006062282A1 (de) * 2006-12-22 2008-07-03 Kba-Metronic Ag Verschleißarme Schmitzringe
DE102008041776A1 (de) * 2008-09-03 2010-03-04 Manroland Ag Schmitzring, insbesondere für Zylinder in einer Rotationsdruckmaschine
JP2010211105A (ja) 2009-03-12 2010-09-24 Seiko Epson Corp 画像形成装置及び画像形成方法
US9248639B2 (en) * 2011-06-03 2016-02-02 Hewlett-Packard Development Company, L.P. Imaging device having fluid container and method for collecting carrier fluid
JP5980411B2 (ja) * 2013-03-06 2016-08-31 富士フイルム株式会社 記録媒体搬送装置及びインクジェット記録装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732813A (en) * 1972-01-03 1973-05-15 Rockwell International Corp Bearer arrangement for printing press
EP0295449A2 (fr) * 1987-06-19 1988-12-21 Grapha-Holding Ag Dispositif pour imprimer ou découper à l'emporte-pièce une bande
DE19501243A1 (de) * 1995-01-17 1996-07-18 Wifag Maschf Schmitzringlagerung für einen Zylinder einer Rotationsdruckmaschine
EP0771648A1 (fr) * 1995-10-31 1997-05-07 MAN Roland Druckmaschinen AG Dispositif de rattrapage de jeu dans une machine d'impression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503858A (en) * 1944-08-21 1950-04-11 Robert J Waterworth Folding machine roll adjusting means
DE9115598U1 (de) 1991-09-09 1992-04-23 Koenig & Bauer AG, 8700 Würzburg Anordnung zum Einstellen von Exzenterbuchsen für Zylinder von Druckmaschinen
FR2756214B1 (fr) * 1996-11-28 1999-02-12 Heidelberg Harris Sa Dispositif de deplacement de cylindres d'un groupe d'impression recto-verso d'une machine rotative a imprimer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732813A (en) * 1972-01-03 1973-05-15 Rockwell International Corp Bearer arrangement for printing press
EP0295449A2 (fr) * 1987-06-19 1988-12-21 Grapha-Holding Ag Dispositif pour imprimer ou découper à l'emporte-pièce une bande
DE19501243A1 (de) * 1995-01-17 1996-07-18 Wifag Maschf Schmitzringlagerung für einen Zylinder einer Rotationsdruckmaschine
EP0771648A1 (fr) * 1995-10-31 1997-05-07 MAN Roland Druckmaschinen AG Dispositif de rattrapage de jeu dans une machine d'impression

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2241441A1 (fr) * 2009-04-15 2010-10-20 Müller Martini Holding AG Dispositif de traitement d'un matériau en bande entre deux cylindres de travail pouvant être entraînés de manière opposée
CN101863158A (zh) * 2009-04-15 2010-10-20 米勒·马蒂尼控股公司 用于在两个可反向地驱动的工作辊之间加工材料带的装置
DE102010001747A1 (de) 2010-02-10 2011-08-11 KOENIG & BAUER Aktiengesellschaft, 97080 Schmitzring sowie ein Verfahren zum reversiblen Verändern eines Außenradius eines Schmitzrings
DE102010001747B4 (de) * 2010-02-10 2011-11-17 Koenig & Bauer Aktiengesellschaft Schmitzring sowie ein Verfahren zum reversiblen Verändern eines Außenradius eines Schmitzrings
DE102016215761A1 (de) 2016-08-23 2018-03-01 Koenig & Bauer Ag Zylinder für eine Bogen verarbeitende Maschine
DE102016215761B4 (de) 2016-08-23 2024-01-11 Koenig & Bauer Ag Zylinder für eine Bogen verarbeitende Maschine

Also Published As

Publication number Publication date
JP2000033686A (ja) 2000-02-02
DE59804990D1 (de) 2002-09-05
EP0943433B1 (fr) 2002-07-31
US6314881B1 (en) 2001-11-13

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