EP0422625B1 - Reciprocating applicator roller in an inking unit on a printing press - Google Patents

Reciprocating applicator roller in an inking unit on a printing press Download PDF

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Publication number
EP0422625B1
EP0422625B1 EP90119447A EP90119447A EP0422625B1 EP 0422625 B1 EP0422625 B1 EP 0422625B1 EP 90119447 A EP90119447 A EP 90119447A EP 90119447 A EP90119447 A EP 90119447A EP 0422625 B1 EP0422625 B1 EP 0422625B1
Authority
EP
European Patent Office
Prior art keywords
roller
shaft
casing
friction
applicator roller
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 - Lifetime
Application number
EP90119447A
Other languages
German (de)
French (fr)
Other versions
EP0422625A1 (en
Inventor
Claus Simeth
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
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0422625A1 publication Critical patent/EP0422625A1/en
Application granted granted Critical
Publication of EP0422625B1 publication Critical patent/EP0422625B1/en
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
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking rollers

Definitions

  • the invention relates to an oscillating application roller of an inking unit of a printing press with a roller shaft which is rotatably mounted on both sides in bearings and with a roller shell which is held on the shaft so as to be rotatable and axially displaceable relative to the shaft, with adjusting rings for limiting the rotation on the shaft Axial movement of the roller shell are attached and the roller shell can be driven to rotate and axially displaced via a friction roller resting on it.
  • the invention is based on the object of proposing an oscillating application roller with the features mentioned at the outset, which is distinguished in particular by a noticeable structural improvement.
  • bearings between the shaft and the casing should be able to be used, which can be produced inexpensively and whose maintenance, even over a long operating life, has only low requirements.
  • the adjusting rings on the roller shaft are infinitely adjustable and clampable, as a result of which the axial stroke of the applicator roller is adjusted accordingly, specifically as a function of the axial stroke of the friction roller resting on it.
  • four abrasive rollers can be used without the quality of the print suffering.
  • FIG. 1 schematically shows a longitudinal section through the essential components of an applicator roller according to the invention with a friction roller resting on it and a plate cylinder resting on it.
  • a roller shaft 2 is rotatably mounted in machine-fixed bearings 1. On it sit on both sides of the collars 3, which can be attached to the shaft 2 in a continuously adjustable manner.
  • a roller jacket 4 is pushed onto the shaft 2.
  • the jacket 4 can be rotated relative to the shaft via bearings 5 and axially displaced in the direction of the double arrow 6.
  • a friction roller 7 On the outer circumference of the jacket 4 is a friction roller 7, which is driven to rotate in the inking unit of the printing press in question and which is axially displaced (changes) in the direction of the arrow 6. This rotary movement and the axial displacement is transmitted from the friction roller 7 to the jacket 4 of the application roller, the application roller being axially displaced between the two adjusting rings 3 serving as stops.
  • Friction surfaces 8 or counter-friction surfaces 9 are formed between the inner sides of the adjusting rings 3 and the opposite end faces of the casing 4.
  • the figure on the right shows how the friction surfaces and counter-friction surfaces abut each other and the shaft 2 is thereby carried along.
  • the speed of the shaft is always synchronized with the speed of the casing and the shaft rotates in the bearings. This eliminates the need for an axial bearing, as was necessary in a known system.
  • the figure also shows a plate cylinder 10, on the circumference of which the oscillating applicator roller bears.
  • rings 11 e.g. made of rubber or plastic, which serve as wear parts when the applicator roller strikes the relevant collar 3 as an attenuator and to increase the friction.
  • the rings rotate with the roller shell and are attached to it in an exchangeable manner.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

PCT No. PCT/EP90/01695 Sec. 371 Date Jun. 4, 1991 Sec. 102(e) Date Jun. 4, 1991 PCT Filed Oct. 10, 1990 PCT Pub. No. WO91/05662 PCT Pub. Date Mar. 2, 1991.An oscillating form roller in the inking mechanism of a printing press includes a roller casing which is rotatable and axially displaceable relative to a roller shaft. During its axial displacement the roller casing encounters set collars that are fastened to the roller shaft so as to be continuously adjustable. Friction surfaces are provided so that, in this contacting position, the set collars and the roller shaft are caused to rotate in synchronism with the roller casing.

Description

Die Erfindung betrifft eine changierende Auftragswalze eines Farbwerks einer Druckmaschine mit einer beidseits in Lagern drehbar gelagerten Walzenwelle und mit einem Walzenmantel, der über Lager relativ zu der Welle drehbar und axial verschiebbar an der Welle gehalten ist, wobei drehfest auf der Welle Stellringe für die Begrenzung der Axialbewegung des Walzenmantels befestigt sind und der Walzenmantel über eine an ihm anliegende Reibwalze auf Drehung angetrieben und axial verschoben werden kann.The invention relates to an oscillating application roller of an inking unit of a printing press with a roller shaft which is rotatably mounted on both sides in bearings and with a roller shell which is held on the shaft so as to be rotatable and axially displaceable relative to the shaft, with adjusting rings for limiting the rotation on the shaft Axial movement of the roller shell are attached and the roller shell can be driven to rotate and axially displaced via a friction roller resting on it.

Eine derartige Auftragswalze ist in der EP 0 313 702 A1 beschrieben.Such an application roller is described in EP 0 313 702 A1.

Der Erfindung liegt die Aufgabe zugrunde, eine changierende Auftragswalze mit den eingangs genannten Merkmalen vorzuschlagen, die sich insbesondere durch eine fühlbare konstruktive Verbesserung auszeichnet. Insbesondere sollen Lagerungen zwischen der Welle und dem Mantel verwendet werden können, die kostengünstig hergestellt werden können und an deren Wartung, auch über eine lange Betriebsdauer, nur geringe Anforderungen gestellt werden.The invention is based on the object of proposing an oscillating application roller with the features mentioned at the outset, which is distinguished in particular by a noticeable structural improvement. In particular, bearings between the shaft and the casing should be able to be used, which can be produced inexpensively and whose maintenance, even over a long operating life, has only low requirements.

Erfindungsgemäß wird dies durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 erreicht.According to the invention, this is achieved by applying the features of the characterizing part of claim 1.

Durch diese einfache Maßnahmen erreicht man einen synchronen oder doch praktisch synchronen Antrieb zwischen dem Walzenmantel und der Walzenwelle, so daß das Lager zwischen diesen beiden Bauteilen im Betrieb praktisch nur noch für die axiale Verschiebbarkeit des Mantels relativ zur Welle sorgen muß; während des Betriebs treten praktisch keine oder nur sehr geringe Drehzahlunterschiede zwischen diesen beiden Bauteilen auf.These simple measures achieve a synchronous or practically synchronous drive between the roller shell and the roller shaft, so that the bearing between these two components in operation only has to provide for the axial displacement of the shell relative to the shaft; practically no or only very slight differences in speed between these two components occur during operation.

Die einander gegenüberliegenden Flächen der Stellringe und des Walzenmantels brauchen nicht mit gesonderten Reibbelägen zu versehen sein, obgleich dies durchaus möglich ist, wenn man eine besonders hohe Reibkraft übertragen will. Im allgemeinen wird es genügen, wenn diese Bauteile (Stellringe einerseits und Walzenmantel andererseits) mit ihren herkömmlich bearbeiteten, metallischen Flächen aneinander anliegen, weil auch dann eine ausreichende Reibungskraft zwischen diesen Teilen übertragen wird, um die Welle synchron oder praktisch synchron mit dem Mantel mitzunehmen.The opposing surfaces of the collars and the roll shell need not be provided with separate friction linings, although this is quite possible if one wants to transmit a particularly high frictional force. In general, it will be sufficient if these components (adjusting rings on the one hand and roller shell on the other) abut each other with their conventionally machined, metallic surfaces, because sufficient frictional force is then also transmitted between these parts in order to carry the shaft synchronously or practically synchronously with the shell.

Es wird bevorzugt, wenn die Stellringe auf der Walzenwelle stufenlos verstellbar und klemmbar sind, wodurch dann der axiale Hub der Auftragswalze entsprechend eingestellt wird, und zwar in Abhängigkeit vom axialen Hub der an ihr anliegenden Reibwalze.It is preferred if the adjusting rings on the roller shaft are infinitely adjustable and clampable, as a result of which the axial stroke of the applicator roller is adjusted accordingly, specifically as a function of the axial stroke of the friction roller resting on it.

Die Deformation der feinsten Rasterpunkte, wie sie beim Druckvorgang beim Einsatz von mehreren verreibenden Auftragwalzen in einem Farbwerk vorkommt, tritt bei der erfindungsgemäßen Anordnung nicht mehr auf. Es können beispielsweise vier verreibende (changierende) Auftragwalzen eingesetzt werden, ohne daß die Qualität des Drucks leidet.The deformation of the finest halftone dots, as occurs in the printing process when using several distributing application rollers in an inking unit, no longer occurs in the arrangement according to the invention. For example, four abrasive rollers can be used without the quality of the print suffering.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert, aus dem sich weitere wichtige Merkmale ergeben. Die Figur zeigt schematisch einen Längsschnitt durch die wesentlichen Bauelemente einer erfindungsgemäßen Auftragwalze mit einer an ihr anliegenden Reibwalze und einem an ihr anliegenden Plattenzylinder.The invention is explained in more detail below on the basis of an exemplary embodiment from which further important features result. The figure schematically shows a longitudinal section through the essential components of an applicator roller according to the invention with a friction roller resting on it and a plate cylinder resting on it.

In maschinenfesten Lagern 1 ist eine Walzenwelle 2 drehbar gelagert. Auf ihr sitzen beidseits Stellringe 3 auf, die stufenlos verstellbar auf der Welle 2 befestigt werden können.A roller shaft 2 is rotatably mounted in machine-fixed bearings 1. On it sit on both sides of the collars 3, which can be attached to the shaft 2 in a continuously adjustable manner.

Ein Walzenmantel 4 ist auf die Welle 2 aufgeschoben. Der Mantel 4 kann über Lager 5 relativ zur Welle gedreht und in Richtung des Doppelpfeiles 6 axial verschoben werden.A roller jacket 4 is pushed onto the shaft 2. The jacket 4 can be rotated relative to the shaft via bearings 5 and axially displaced in the direction of the double arrow 6.

Am Außenumfang des Mantels 4 liegt eine Reibwalze 7 an, die im Farbwerk der betreffenden Druckmaschine auf Drehung angetrieben wird und die in Richtung des Pfeiles 6 axial verschoben wird (changiert). Diese Drehbewegung und die axiale Verschiebung wird von der Reibwalze 7 auf den Mantel 4 der Auftragwalze übertragen, wobei die Auftragwalze zwischen den beiden als Anschläge dienenden Stellringe 3 axial verschoben wird.On the outer circumference of the jacket 4 is a friction roller 7, which is driven to rotate in the inking unit of the printing press in question and which is axially displaced (changes) in the direction of the arrow 6. This rotary movement and the axial displacement is transmitted from the friction roller 7 to the jacket 4 of the application roller, the application roller being axially displaced between the two adjusting rings 3 serving as stops.

Zwischen den Innenseiten der Stellringe 3 und den gegenüberliegenden Stirnseiten des Mantels 4 sind Reibflächen 8 bzw. Gegenreibflächen 9 ausgebildet.Friction surfaces 8 or counter-friction surfaces 9 are formed between the inner sides of the adjusting rings 3 and the opposite end faces of the casing 4.

Die Figur zeigt rechts, wie die Reibflächen und Gegenreibflächen aneinander anliegen und dadurch wird die Welle 2 mitgenommen. Dadurch wird also die Drehzahl der Welle stets wieder mit der Drehzahl des Mantels synchronisiert und die Welle dreht sich in den Lagern mit. Eine Axiallagerung, wie sie bei einem bekannten System notwendig war, entfällt hierdurch.The figure on the right shows how the friction surfaces and counter-friction surfaces abut each other and the shaft 2 is thereby carried along. As a result, the speed of the shaft is always synchronized with the speed of the casing and the shaft rotates in the bearings. This eliminates the need for an axial bearing, as was necessary in a known system.

Die Figur zeigt auch einen Plattenzylinder 10, an dessen Umfang die changierende Auftragwalze anliegt.The figure also shows a plate cylinder 10, on the circumference of which the oscillating applicator roller bears.

Vorzugsweise sitzen auf der Welle 2 stirnseitig der Auftragwalze Ringe 11, z.B. aus Gummi oder Kunststoff, auf, die als Verschleißteile beim Auftreffen der Auftragwalze auf den betreffenden Stellring 3 als Dämpfungsglied und zur Erhöhung der Reibung dienen. Die Ringe drehen sich mit dem Walzenmantel und sind an ihm auswechselbar befestigt.Preferably, rings 11, e.g. made of rubber or plastic, which serve as wear parts when the applicator roller strikes the relevant collar 3 as an attenuator and to increase the friction. The rings rotate with the roller shell and are attached to it in an exchangeable manner.

Claims (4)

  1. Reciprocating applicator roller of an inking unit of a printing press with a roller shaft (2) mounted rotatably in bearings on both sides and with a roller casing (4) which is mounted via bearings (5) rotatably relative to the shaft (2) and axially displaceably on the shaft (2), wherein rotationally fast on the shaft (2) are fixed adjusting rings (3) for limiting the axial movement of the roller casing (4) and the roller casing (4) can be driven into rotation via a distributor roller lying against it and axially displaced, characterised in that the adjusting rings fixed outside the roller casing (4) on the roller shaft (2) have on their inner surfaces towards the applicator roller friction surfaces (8) which form a friction positive connection with counter-friction surfaces (9) on the end faces of the roller casing (4) on abutment of one of the counter-friction faces (9) against the neighbouring friction face (8) between roller shaft (2) and roller casing (4).
  2. Reciprocating applicator roller according to Claim 1, characterised in that the counter-friction surfaces (9) are constructed on separate rings (11).
  3. Reciprocating applicator roller according to Claim 2, characterised in that the rings (11) consist of rubber material or of plastics.
  4. Reciprocating applicator roller according to one of Claims 1 - 3, characterised in that the adjusting rings (3) can be adjusted and clamped steplessly on the roller shaft (2).
EP90119447A 1989-10-12 1990-10-10 Reciprocating applicator roller in an inking unit on a printing press Expired - Lifetime EP0422625B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3934070A DE3934070A1 (en) 1989-10-12 1989-10-12 CHANGING APPLICATION ROLLER OF A INK PRINTING MACHINE
DE3934070 1989-10-12

Publications (2)

Publication Number Publication Date
EP0422625A1 EP0422625A1 (en) 1991-04-17
EP0422625B1 true EP0422625B1 (en) 1994-09-21

Family

ID=6391322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119447A Expired - Lifetime EP0422625B1 (en) 1989-10-12 1990-10-10 Reciprocating applicator roller in an inking unit on a printing press

Country Status (7)

Country Link
US (1) US5228389A (en)
EP (1) EP0422625B1 (en)
JP (1) JPH074936B2 (en)
AT (1) ATE111815T1 (en)
DE (2) DE3934070A1 (en)
ES (1) ES2060884T3 (en)
WO (1) WO1991005662A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109917A1 (en) 2013-09-10 2015-03-12 Manroland Web Systems Gmbh Changeable roller of a printing machine

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
US5632203A (en) * 1995-06-14 1997-05-27 Quad Graphics, Inc. Anti-ghosting roller
SE524817C2 (en) * 2003-02-17 2004-10-05 Scandrive Control Ab Apparatus for applying oscillating axial movements to a rotatable roller
US20090101033A1 (en) * 2007-10-23 2009-04-23 Byer Kevin T Oscillating ink form roller
DE102008001875A1 (en) * 2008-05-20 2009-11-26 Manroland Ag Inking unit for applying printing ink on plate cylinder of printing unit of sheet offset printing machine, has bearing arrangement including bolts, which partially unblock intermediate spaces in position so that axial clearance is unblocked
DE102010042698B4 (en) * 2010-10-20 2014-12-18 Koenig & Bauer Aktiengesellschaft Arrangement of in a printing machine axially parallel to each other arranged rollers

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0313702A1 (en) * 1987-10-30 1989-05-03 Komori Corporation Inking apparatus for printing press

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109917A1 (en) 2013-09-10 2015-03-12 Manroland Web Systems Gmbh Changeable roller of a printing machine

Also Published As

Publication number Publication date
EP0422625A1 (en) 1991-04-17
ES2060884T3 (en) 1994-12-01
WO1991005662A1 (en) 1991-05-02
DE3934070C2 (en) 1991-09-12
JPH074936B2 (en) 1995-01-25
JPH04500049A (en) 1992-01-09
ATE111815T1 (en) 1994-10-15
DE59007235D1 (en) 1994-10-27
US5228389A (en) 1993-07-20
DE3934070A1 (en) 1991-04-25

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