EP1511630A2 - Replacement of cartridgelike printing plates in a flexo printing machine - Google Patents

Replacement of cartridgelike printing plates in a flexo printing machine

Info

Publication number
EP1511630A2
EP1511630A2 EP03735390A EP03735390A EP1511630A2 EP 1511630 A2 EP1511630 A2 EP 1511630A2 EP 03735390 A EP03735390 A EP 03735390A EP 03735390 A EP03735390 A EP 03735390A EP 1511630 A2 EP1511630 A2 EP 1511630A2
Authority
EP
European Patent Office
Prior art keywords
printing machine
roller
pressure
printing
bearing block
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
EP03735390A
Other languages
German (de)
French (fr)
Other versions
EP1511630B1 (en
Inventor
Robert Blom
Dietmar Koopmann
Günter Rogge
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1511630A2 publication Critical patent/EP1511630A2/en
Application granted granted Critical
Publication of EP1511630B1 publication Critical patent/EP1511630B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/14—Devices for attaching printing elements or formes to supports for attaching printing formes to intermediate supports, e.g. adapter members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/10—Relief printing
    • B41P2200/12—Flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a printing press, preferably a Fiexo printing press, with at least one impression cylinder and with at least one printing roller fitted with an adapter sleeve and / or a jacket sleeve, the bearings of the printing roller being movable in guides relative to the impression cylinder and a bearing for intercepting the shaft journal of the free end of the pressure roller is provided.
  • Such a printing machine is known for example from DE 197 05 369 A1, in which the bearing block with the interception bearing for the printing roller in the printing machine frame can be moved transversely to the printing roller, so that the overhung pressure roller is moved from one side, for example through a window in the side frame of the printing press frame is freely accessible in order to be able to push off and pull up a jacket sleeve and / or an adapter sleeve for the jacket sleeve.
  • the object of the invention is therefore to provide a printing machine of the type specified in the introduction, in which the jacket sleeve and / or the adapter sleeve can be pushed out in a simple manner by the printing roller.
  • this object is achieved in that, for the purpose of the relative change in position between the adapter sleeve and / or the casing sleeve and the pressure roller, at least one shaft, but preferably two shafts, is mounted so that it can be rotated and rotated slowly and parallel to the center line of the pressure roller which carry radial gripper arms at their inner ends facing the pressure roller.
  • the radial arms are expediently provided with end-side pressure pieces.
  • the shafts can be rotatably supported at their outer ends with a holding piece and can be provided with a rotary drive.
  • the holding piece is expediently provided with a drive for its displacement relative to the bearing block.
  • a printing press preferably a Fiexo printing press
  • at least one impression cylinder and at least one pressure roller which is mounted on one end overhung in the frame
  • the bearings of the printing roller being movable in guides relative to the impression cylinder and a bearing for intercepting the shaft journal of the free end of the pressure roller
  • the invention solved in that in which the pressure roller flows Gend bearing bracket parallel to the surface line of the pressure roller two shafts are slidably and rotatably mounted, the radial arms at their inner ends facing the pressure roller with end-side thrust pieces, that the shafts are rotatably mounted at their outer ends in a holding piece and provided with a rotary drive and that the holding piece is provided with a drive which is movable relative to the bearing block.
  • a jacket sleeve and / or an adapter sleeve can be pushed off in a simple manner by the pressure pieces being axially displaced and pivoted radially into a corresponding system at the end regions the jacket sleeve and / or the adapter sleeve are brought so that the jacket sleeve and / or the adapter sleeve can then be pushed off the pressure roller by axial movement of the pressure pieces relative to the pressure roller.
  • the rotary drive expediently consists of a pressure medium-piston-cylinder unit, the cylinder and the piston rod of which are articulated at the ends of the radial levers of the shafts.
  • the radial levers can be given a pincer-like opening or closing movement in a simple manner.
  • the drive which moves the holding piece in the axial direction to the pressure roller preferably consists of at least one pressure medium-piston-cylinder unit, the ends of which engage the holding piece and the bearing block.
  • a pressure medium-piston-cylinder unit with a short-stroke cylinder and a pressure medium-piston-cylinder unit with a long-stroke cylinder are coupled to one another and the outer sides are connected on the one hand to the holding piece and on the other hand to the bearing block.
  • the short-stroke cylinder is used to position the pressure pieces in the correct position on the jacket sleeve and / or the adapter sleeve and Long stroke cylinder pushing off the jacket sleeve and / or the adapter sleeve from the pressure roller and possibly also pulling it up.
  • the long-stroke cylinder is expediently held in a bore in the bearing block.
  • the pressure pieces are expediently adapted to the shape of the jacket sleeve and / or adapter sleeve to be pushed off by the pressure roller.
  • the jacket sleeve can be provided with an annular groove at its end region facing the bearing block that overholds the pressure roller and the pressure pieces can be provided with wedges that engage in this annular groove.
  • FIG. 1 is a side view of a side frame of a Fiexo printing machine, in which the bearing blocks of a printing roller and an anilox roller are mounted, which can be adjusted against each other and against an impression cylinder,
  • FIG. 2 shows a schematic representation of a top view of a pressure roller which is mounted on the fly in a side frame with the interception bearing removed and a device for pushing off a casing sleeve and / or an adapter sleeve from the pressure roller.
  • Fig. 3 shows a section through the pressure roller along the line III-III in Fig. 2 and
  • Fig. 4 A to D different positions of on swiveling and movable in the axial direction thrust pieces on sleeves and / or adapter sleeves to be pushed out.
  • FIG. 1 shows a side view of the front of two cantilevered side frames 1 connected to the printing press frame, which are provided with windows forming openings 2, in the region of which on guide rails
  • the bearing blocks 4, 5 of a printing roller 6 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 on the printing roller 6 on and from this can be switched off and the printing roller 6 alone or together with the anilox roller 7 on the impression cylinder 8 is adjustable.
  • the two bearing blocks 4, 5 of a printing roller 6 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 on the printing roller 6 on and from this can be switched off and the printing roller 6 alone or together with the anilox roller 7 on the impression cylinder 8 is adjustable.
  • the two bearing blocks 4, 5 of a printing roller 6 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 on the printing roller 6 on and from this can be switched off and the printing roller 6 alone or together with the anilox roller 7 on the impression cylinder 8 is adjustable.
  • the pressure roller 10 is overhung in a bearing block 11, which is guided in the rear side frame 1 'on guide rails 3'.
  • the front shaft journal 12 of the pressure roller 10 is mounted in an interception bearing 13 during the printing operation, which in the position shown in FIG. 2 has been released from the shaft journal 12 and moved to the side, so that the pressure roller and the jacket sleeve 14 held thereon and the these carrying adapter sleeve 15 are freely accessible through the window 2 of the front side frame 1.
  • the shafts 17, 18 are guided and mounted in a slowly displaceable and rotatable manner parallel to one another and at a distance and symmetrically to a vertical plane intersecting the center line of the pressure roller 10 below the pressure roller 10.
  • radial arms 20 are fastened in a non-rotatable manner, the ends of which protrude freely upward carry jaws in the form of pressure pieces 21.
  • the rear ends of the shafts 17, 18 are rotatably but axially immovable in a plate-shaped holding piece 22.
  • Radial levers 23 are non-rotatably fastened to the rear shaft journals of the shafts 17, 18 passing through the holding piece 22, on the free ends of which the cylinder 24 and on the other hand the piston rod 25 of a pressure medium-piston-cylinder unit are mounted.
  • the short-stroke cylinder 26 of a pressure medium piston-cylinder unit is fastened to the holding piece 22, the piston rod 27 of which is connected by a coupling piece : '28 to the piston rod 29 of a wide stroke cylinder 30 of a pressure medium piston-cylinder unit, which is in a bore 31 the bearing block 11 is attached.
  • the jaws or pressure pieces 21 carry cushioning or buffering pieces 22 at their ends, which are used for gentle contact with the jacket sleeve 14 or the adapter sleeve 15.
  • the pressure piece 21 is created by appropriately extending the short-stroke cylinder 26 and pivoting the arms 20 to the front end face of the adapter sleeve 15, so that the adapter sleeve 15 is pushed off the pressure roller 12 by actuation of the wide-stroke cylinder 30 can.
  • 4B shows the right part encircled in FIG. 2.
  • the buffering part 22 of the pressure piece 21 is only applied to the end face of the casing sleeve 14, so that initially only this can be pushed off the adapter sleeve 15.
  • the pressure piece 21, which is specially designed according to FIG. 4 C, is provided with a shoulder 35 which abuts an annular projection 36 of the adapter sleeve 15 and thus pushes it off the pressure roller 10 when the jacket sleeve is already a predetermined distance from the adapter sleeve 15 has been deported.
  • This type of gradual pushing off facilitates handling when the adapter sleeve with the sleeve from the Printing roller is pushed off, because then the jacket sleeve can be removed more easily from the adapter sleeve.
  • the casing sleeve 14 is provided with an annular groove into which the wedge-shaped, buffering piece 22 of the pressure piece 21 engages, so that the casing sleeve 14 is pushed off by itself from the adapter sleeve 15 or else is pulled onto it can.
  • the pressure piece is provided with a sensor, for example an optical sensor 37, which detects a mark attached to the casing sleeve, so that the rotational position of the casing sleeve can be detected for the pressure absorption.
  • a sensor for example an optical sensor 37, which detects a mark attached to the casing sleeve, so that the rotational position of the casing sleeve can be detected for the pressure absorption.
  • the side register of the printing unit can also be used for the adaptation.

Landscapes

  • Rotary Presses (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

The bearings (4, 5) of a printing roller (6, 10) of a printing machine, preferably a flexo printing machine, which comprises at least one counter-pressure cylinder (8) and at least one printing roller that is over-mounted in the frame (1, 1'), can be displaced in guides (3) relative to the counter-pressure cylinder. A bearing (13) is provided to catch the shaft journal (12) of the free end of the printing roller. In order to be able to easily push out the enveloping jacket (14) and/or the adapter jacket (15), two shafts (17, 18) are mounted in such a way that they can rotate and move longitudinally in the bearing block (11) over-mounting the cylinder roller parallel to the center line of the printing roller. The inner ends (19) of said shafts facing the printing roller bear radial arms (20) with thrust pieces (21) on their ends. The outer ends of the shafts are rotationally mounted in a holding piece (22) and are provided with a rotational drive. The holding piece is provided with a drive (26) moving it relative to the bearing block.

Description

Druckmaschine press
Die Erfindung betrifft eine Druckmaschine, vorzugsweise eine Fiexodruckmaschine, mit mindestens einem Gegendruckzylinder und mit mindestens einer mit einer Adapterhülse und/oder einer Mantelhülse besetzten Druckwalze, wobei die Lager der Druckwalze relativ zu dem Gegendruckzylinder in Führungen verfahrbar sind und ein Lager zum Abfangen des Wellenzapfens des freien Endes der Druckwalze vorgesehen ist.The invention relates to a printing press, preferably a Fiexo printing press, with at least one impression cylinder and with at least one printing roller fitted with an adapter sleeve and / or a jacket sleeve, the bearings of the printing roller being movable in guides relative to the impression cylinder and a bearing for intercepting the shaft journal of the free end of the pressure roller is provided.
Eine derartige Druckmaschine ist beispielsweise aus der DE 197 05 369 A1 bekannt, bei der der Lagerbock mit dem Abfanglager für die Druckwalze in dem Druckmaschinengestell quer zu der Druckwalze verfahrbar ist, so daß die fliegend gelagerte Druckwaize von einer Seite, beispielsweise durch ein Fenster des Seitengestells des Druckmaschinengestells frei zugänglich ist, um eine Mantelhülse und/oder eine Adapterhulse für die Mantelhülse abschieben und aufziehen zu können.Such a printing machine is known for example from DE 197 05 369 A1, in which the bearing block with the interception bearing for the printing roller in the printing machine frame can be moved transversely to the printing roller, so that the overhung pressure roller is moved from one side, for example through a window in the side frame of the printing press frame is freely accessible in order to be able to push off and pull up a jacket sleeve and / or an adapter sleeve for the jacket sleeve.
Um beispielsweise mit Klischees versehene Mantelhülsen und/oder Adapterhülsen voneinander und/oder von einer Druckwalze abschieben und auch wieder auf- schieben zu können, ist es beispielsweise aus den DE 19'8 46 677 A1 und DE 200 10 068 A1 bekannt, die Mantel- und/oder Adapterhülsen durch Druckluft oder hydraulisch zu expandieren und zu kontrahieren. Trotz der Möglichkeit, die Mantelhülsen und/oder Adapterhülsen zum Zwecke des Auf- und Abziehens aufzuweiten, sind hierzu erhebliche Kräfte aufzubringen.In order, for example, to push sleeve sleeves and / or adapter sleeves provided with clichés from one another and / or from a pressure roller and also to slide them on again. To be able to push, it is known for example from DE 19 ' 8 46 677 A1 and DE 200 10 068 A1 to expand and contract the jacket and / or adapter sleeves by compressed air or hydraulically. Despite the possibility of expanding the casing sleeves and / or adapter sleeves for the purpose of pulling them on and off, considerable forces have to be exerted for this.
Aufgabe der Erfindung ist es daher, eine Druckmaschine der eingangs angegebenen Art zu schaffen, bei der sich von der Druckwalze in einfacher Weise die Mantelhülse und/oder die Adapterhülse ausschieben lassen.The object of the invention is therefore to provide a printing machine of the type specified in the introduction, in which the jacket sleeve and / or the adapter sleeve can be pushed out in a simple manner by the printing roller.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß zum Zwecke der relativen Lageänderung zwischen der Adapterhulse und/oder der Mantelhülse und der Druckwalze in dem die Druckwalze fliegend lagernden Lagerbock parallel zur Mittellinie der Druckwalze mindestens eine Welle, vorzugsweise jedoch zwei Wellen, langsverschieblich und drehbar gelagert sind, die an ihren inneren, der Druckwalze zugewandten Enden radiale Greifarme tragen.According to the invention, this object is achieved in that, for the purpose of the relative change in position between the adapter sleeve and / or the casing sleeve and the pressure roller, at least one shaft, but preferably two shafts, is mounted so that it can be rotated and rotated slowly and parallel to the center line of the pressure roller which carry radial gripper arms at their inner ends facing the pressure roller.
Zweckmäßigerweise sind die radialen Arme mit endseitigen Druckstücken versehen.The radial arms are expediently provided with end-side pressure pieces.
Die Wellen können an ihren äußeren Enden mit einem Haltestück drehbar gelagert und mit einem Drehantrieb versehen sein.The shafts can be rotatably supported at their outer ends with a holding piece and can be provided with a rotary drive.
Das Haltestück ist zweckmäßigerweise mit einem Antrieb zu seinem Verschieben relativ zu dem Lagerbock versehen.The holding piece is expediently provided with a drive for its displacement relative to the bearing block.
Die vorstehend angegebene Aufgabe wird bei einer Druckmaschine, vorzugsweise einer Fiexodruckmaschine, mit mindestens einem Gegendruckzylinder und mindestens einer Druckwaize, die einendig fliegend im Gestell gelagert ist, wobei die Lager der Druckwalze relativ zu dem Gegendruckzylinder in Führungen verfahrbar und ein Lager zum Abfangen des Wellenzapfens des freien Endes der Druckwalze vorgesehen ist, erfindungsgemäß dadurch gelöst, daß in dem die Druckwalze flie- gend lagernden Lagerbock parallel zur Mantellinie der Druckwalze zwei Wellen langsverschieblich und drehbar gelagert sind, die an ihren inneren der Druckwalze zugewandten Enden radiale Arme mit endseitigen Druckstücken tragen, daß die Wellen an ihren äußeren Enden in einem Haltestück drehbar gelagert und mit einem Drehantrieb versehen sind und daß das Haltestück mit einem dieses relativ zu dem Lagerbock verfahrbaren Antrieb versehen ist.The above-mentioned object is achieved in a printing press, preferably a Fiexo printing press, with at least one impression cylinder and at least one pressure roller, which is mounted on one end overhung in the frame, the bearings of the printing roller being movable in guides relative to the impression cylinder and a bearing for intercepting the shaft journal of the free end of the pressure roller is provided, according to the invention solved in that in which the pressure roller flows Gend bearing bracket parallel to the surface line of the pressure roller two shafts are slidably and rotatably mounted, the radial arms at their inner ends facing the pressure roller with end-side thrust pieces, that the shafts are rotatably mounted at their outer ends in a holding piece and provided with a rotary drive and that the holding piece is provided with a drive which is movable relative to the bearing block.
Bei der erfindungsgemäßen Druckmaschine lassen sich nach dem Entfernen des Abfanglagers von dem freien Ende der fliegend gelagerten Druckwalze von dieser in einfacher Weise eine Mantelhülse und/oder eine Adapterhülse dadurch abschieben, daß die Druckstücke durch axiales Verfahren und radiales Verschwenken in eine entsprechende Anlage an die Endbereiche der Mantelhülse und/oder der Adapterhülse gebracht werden, so daß anschließend durch axiales Verfahren der Druckstücke relativ zu der Druckwalze die Mantelhülse und/oder die Adapterhülse von der Druckwalze abgeschoben werden können.In the printing machine according to the invention, after removal of the interception bearing from the free end of the overhung pressure roller, a jacket sleeve and / or an adapter sleeve can be pushed off in a simple manner by the pressure pieces being axially displaced and pivoted radially into a corresponding system at the end regions the jacket sleeve and / or the adapter sleeve are brought so that the jacket sleeve and / or the adapter sleeve can then be pushed off the pressure roller by axial movement of the pressure pieces relative to the pressure roller.
Zweckmäßigerweise besteht der Drehantrieb aus einer Druckmittel-Kolben- Zylinder-Einheit, deren Zylinder und deren Kolbenstange jeweils an den Enden der radialen Hebel der Wellen angelenkt sind. Auf diese Weise läßt sich in einfacher Weise den radialen Hebeln eine zangenartige Öffnungs- oder Schließbewegung erteilen.The rotary drive expediently consists of a pressure medium-piston-cylinder unit, the cylinder and the piston rod of which are articulated at the ends of the radial levers of the shafts. In this way, the radial levers can be given a pincer-like opening or closing movement in a simple manner.
Vorzugsweise besteht der das Haltestück in axialer Richtung zur Druckwalze verfahrender Antrieb aus mindestens einer Druckmittel-Kolben-Zylinder-Einheit, deren Enden an dem Haltestück und dem Lagerbock angreifen.The drive which moves the holding piece in the axial direction to the pressure roller preferably consists of at least one pressure medium-piston-cylinder unit, the ends of which engage the holding piece and the bearing block.
Nach einer Weiterentwicklung der Erfindung ist vorgesehen, daß eine Druckmittel- Koiben-Zylinder-Einheit mit einem Kurzhubzylinder und eine Druckmittel-Kolben- Zylinder-Einheit mit einem Weithubzylinder miteinander gekuppelt und die äußeren Seiten einerseits mit dem Haltestück und andererseits mit dem Lagerbock verbunden sind. Bei dieser Ausgestaltung dient der Kurzhubzylinder dem lagerichtigen Anlegen der Druckstücke an die Mantelhülse und/oder die Adapterhülse und der Weithubzylinder dem Abschieben der Mantelhülse und/oder der Adapterhülse von der Druckwalze und ggf. auch dem Aufziehen.According to a further development of the invention, it is provided that a pressure medium-piston-cylinder unit with a short-stroke cylinder and a pressure medium-piston-cylinder unit with a long-stroke cylinder are coupled to one another and the outer sides are connected on the one hand to the holding piece and on the other hand to the bearing block. In this embodiment, the short-stroke cylinder is used to position the pressure pieces in the correct position on the jacket sleeve and / or the adapter sleeve and Long stroke cylinder pushing off the jacket sleeve and / or the adapter sleeve from the pressure roller and possibly also pulling it up.
Um eine möglichst kurze Bauweise zu ermöglichen, ist der Weithubzylinder zweckmäßigerweise in einer Bohrung des Lagerbocks gehaltert.In order to make the construction as short as possible, the long-stroke cylinder is expediently held in a bore in the bearing block.
Zweckmäßigerweise sind die Druckstücke der Form der von der Druckwalze abzuschiebenden Mantelhülse und/oder Adapterhülse angepaßt.The pressure pieces are expediently adapted to the shape of the jacket sleeve and / or adapter sleeve to be pushed off by the pressure roller.
Zum Abschieben und auch zum Aufziehen der Mantelhülse auf die Druckwalze oder die Adapterhülse können die Mantelhülse an Ihrem dem zu der die Druckwalze fliegend lagernden Lagerbock zugewandten Endbereich mit einer Ringnut und die Druckstücke mit in diese Ringnut greifenden Keilen versehen sein.For pushing off and also for pulling the jacket sleeve onto the pressure roller or the adapter sleeve, the jacket sleeve can be provided with an annular groove at its end region facing the bearing block that overholds the pressure roller and the pressure pieces can be provided with wedges that engage in this annular groove.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigtAn embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1 eine Seitenansicht eines Seitengestells einer Fiexodruckmaschine, in dem die Lagerböcke einer Druckwalze und einer Rasterwalze gelagert sind, die aneinander und an einen Gegendruckzylinder anstellbar sind,1 is a side view of a side frame of a Fiexo printing machine, in which the bearing blocks of a printing roller and an anilox roller are mounted, which can be adjusted against each other and against an impression cylinder,
Fig. 2 eine Draufsicht auf eine in einem Seitengestell fliegend gelagerte Druckwalze mit entferntem Abfanglager und einer Einrichtung zum Abschieben einer Mantelhülse und/oder einer Adapterhülse von der Druckwaize in schematischer Darstellung,2 shows a schematic representation of a top view of a pressure roller which is mounted on the fly in a side frame with the interception bearing removed and a device for pushing off a casing sleeve and / or an adapter sleeve from the pressure roller.
Fig. 3 einen Schnitt durch die Druckwalze längs der Linie lll-lll in Fig. 2 undFig. 3 shows a section through the pressure roller along the line III-III in Fig. 2 and
Fig. 4 A bis D unterschiedliche Stellungen von an schwenkbaren und in axialer Richtung bewegbaren Druckstücken an auszuschiebenden Mantel- und/oder Adapterhülsen.Fig. 4 A to D different positions of on swiveling and movable in the axial direction thrust pieces on sleeves and / or adapter sleeves to be pushed out.
Aus Fig. 1 ist eine Seitenansicht des vorderen von zwei mit dem Druckmaschinengestell verbundenen auskragenden Seitengestellen 1 ersichtlich, die mit Durchbrüchen 2 bildenden Fenstern versehen sind, in deren Bereich auf Führungsschienen1 shows a side view of the front of two cantilevered side frames 1 connected to the printing press frame, which are provided with windows forming openings 2, in the region of which on guide rails
3 die Lagerböcke 4, 5 einer Druckwalze 6 und einer Rasterwalze 7 in der Weise verfahrbar gelagert sind, daß die Rasterwalze 7 an die Druckwalze 6 an und von dieser abstellbar ist und die Druckwalze 6 für sich allein oder zusammen mit der Rasterwalze 7 an den Gegendruckzylinder 8 anstellbar ist. Die beiden Lagerböcke3 the bearing blocks 4, 5 of a printing roller 6 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 on the printing roller 6 on and from this can be switched off and the printing roller 6 alone or together with the anilox roller 7 on the impression cylinder 8 is adjustable. The two bearing blocks
4 für die Druckwalze 6 sind durch Spindeltriebe 9 verfahrbar. Die Antriebe für die Lagerböcke 5 der Rasterwalze sind nicht dargestellt.4 for the pressure roller 6 can be moved by spindle drives 9. The drives for the bearing blocks 5 of the anilox roller are not shown.
Wie aus Fig. 2 ersichtlich ist, ist die Druckwalze 10 in einem Lagerbock 11 fliegend gelagert, der in dem hinteren Seitengestell 1' auf Führungsschienen 3' verfahrbar geführt ist. Der vordere Wellenzapfen 12 der Druckwalze 10 ist in einem Abfanglager 13 während des Druckbetriebs gelagert, das in der aus Fig. 2 ersichtlichen Stellung von dem Wellenzapfen 12 gelöst und zur Seite verfahren ist, so daß die Druckwalze und die auf dieser gehalterte Mantelhülse 14 und die diese tragende Adapterhülse 15 frei durch das Fenster 2 des vorderen Seitengestells 1 zugänglich sind. Die Art der Lagerung des Wellenzapfens 12 der Druckwalze 10 in dem Abfanglager 13 und die Freigabe des Wellenzapfens 12 von dem Abfanglager 13 und das seitliche Verfahren dieses Abfanglagers sind aus der DE 197 05 369 A1 bekannt, auf die zur näheren Darstellung Bezug genommen wird.As can be seen from Fig. 2, the pressure roller 10 is overhung in a bearing block 11, which is guided in the rear side frame 1 'on guide rails 3'. The front shaft journal 12 of the pressure roller 10 is mounted in an interception bearing 13 during the printing operation, which in the position shown in FIG. 2 has been released from the shaft journal 12 and moved to the side, so that the pressure roller and the jacket sleeve 14 held thereon and the these carrying adapter sleeve 15 are freely accessible through the window 2 of the front side frame 1. The type of mounting of the shaft journal 12 of the pressure roller 10 in the interception bearing 13 and the release of the shaft journal 12 from the interception bearing 13 and the lateral method of this interception bearing are known from DE 197 05 369 A1, to which reference is made for a more detailed illustration.
In dem Lagerbock 11 sind parallel zueinander und im Abstand und symmetrisch zu einer die Mittellinie der Druckwalze 10 schneidenden vertikalen Ebene unterhalb der Druckwalze 10 die Wellen 17, 18 langsverschieblich und drehbar geführt und gelagert. Auf die den Lagerbock 11 durchsetzenden vorderen Enden 19 der Wellen 17, 18 sind zangenartig radiale Arme 20 undrehbar befestigt, deren frei nach oben hin auskragenden Enden Backen in Form von Druckstücken 21 tragen. Die hinteren Enden der Wellen 17, 18 sind in einem plattenförmigen Haltestück 22 drehbar aber axial unverschieblich gelagert. An den das Haltestück 22 durchsetzenden hinteren Wellenzapfen der Wellen 17, 18 sind radiale Hebel 23 undrehbar befestigt, an deren freien Enden einerseits der Zylinder 24 und andererseits die Kolbenstange 25 einer Druckmittel-Kolben-Zylinder-Einheit gelagert ist. An dem Haltestück 22 ist der Kurzhubzylinder 26 einer Druckmittel-Kolben-Zylinder-Einheit befestigt, deren Kolbenstange 27 durch ein Kupplungsstück:'28 mit der Kolbenstange 29 eines Weithubzylinders 30 einer Druckmittel-Kolben-Zylinder-Einheit verbunden ist, der in einer Bohrung 31 des Lagerbocks 11 befestigt ist.In the bearing block 11, the shafts 17, 18 are guided and mounted in a slowly displaceable and rotatable manner parallel to one another and at a distance and symmetrically to a vertical plane intersecting the center line of the pressure roller 10 below the pressure roller 10. On the front ends 19 of the shafts 17, 18 passing through the bearing block 11, radial arms 20 are fastened in a non-rotatable manner, the ends of which protrude freely upward carry jaws in the form of pressure pieces 21. The rear ends of the shafts 17, 18 are rotatably but axially immovable in a plate-shaped holding piece 22. Radial levers 23 are non-rotatably fastened to the rear shaft journals of the shafts 17, 18 passing through the holding piece 22, on the free ends of which the cylinder 24 and on the other hand the piston rod 25 of a pressure medium-piston-cylinder unit are mounted. The short-stroke cylinder 26 of a pressure medium piston-cylinder unit is fastened to the holding piece 22, the piston rod 27 of which is connected by a coupling piece : '28 to the piston rod 29 of a wide stroke cylinder 30 of a pressure medium piston-cylinder unit, which is in a bore 31 the bearing block 11 is attached.
Die Backen oder Druckstücke 21 tragen an ihren Enden polsternde oder puffernde Stücke 22, die der schonenden Anlage an der Mantelhülse 14 oder der Adapterhülse 15 dienen.The jaws or pressure pieces 21 carry cushioning or buffering pieces 22 at their ends, which are used for gentle contact with the jacket sleeve 14 or the adapter sleeve 15.
In der aus Fig. 4 B ersichtlichen Stellung ist das Druckstück 21 durch entsprechendes Ausfahren des Kurzhubzylinders 26 und verschwenken der Arme 20 an die vordere Stirnseite der Adapterhülse 15 angelegt, so daß durch Betätigung des Weithubzylinders 30 die Adapterhülse 15 von der Druckwalze 12- abgeschoben werden kann. Die Fig. 4 B zeigt den rechten in Fig. 2 eingekreisten Teil.In the position shown in FIG. 4B, the pressure piece 21 is created by appropriately extending the short-stroke cylinder 26 and pivoting the arms 20 to the front end face of the adapter sleeve 15, so that the adapter sleeve 15 is pushed off the pressure roller 12 by actuation of the wide-stroke cylinder 30 can. 4B shows the right part encircled in FIG. 2.
Die Fig. 4 A, C und D zeigen Betriebsweisen, die den linken eingekreisten Teil in Fig. 2 betreffen.4A, C and D show modes of operation relating to the left circled portion in FIG. 2.
Gemäß Fig. 4 C ist der puffernde Teil 22 des Druckstücks 21 nur an die Stirnseite der Mantelhülse 14 angelegt, so daß zunächst nur diese von der Adapterhülse 15 abgeschoben werden kann. Das gemäß Fig. 4 C besonders ausgestaltete Druck- stück 21 ist mit einem Absatz 35 versehen, der gegen einen ringförmigen Vorsprung 36 der Adapterhülse 15 stößt und somit diese von der Druckwalze 10 abschiebt, wenn bereits die Mantelhülse um eine vorbestimmte Strecke von der Adapterhülse 15 abgeschoben worden ist. Diese Art des stufenweisen Abschiebens erleichtert die Handhabung, wenn die Adapterhülse mit der Mantelhülse von der Druckwalze abgeschoben ist, weil sich dann die Mantelhülse leichter von der Adapterhülse abziehen läßt.According to FIG. 4 C, the buffering part 22 of the pressure piece 21 is only applied to the end face of the casing sleeve 14, so that initially only this can be pushed off the adapter sleeve 15. The pressure piece 21, which is specially designed according to FIG. 4 C, is provided with a shoulder 35 which abuts an annular projection 36 of the adapter sleeve 15 and thus pushes it off the pressure roller 10 when the jacket sleeve is already a predetermined distance from the adapter sleeve 15 has been deported. This type of gradual pushing off facilitates handling when the adapter sleeve with the sleeve from the Printing roller is pushed off, because then the jacket sleeve can be removed more easily from the adapter sleeve.
Bei dem Ausführungsbeispiel nach Fig. 4 D ist die Mantelhülse 14 mit einer Ringnut versehen, in die das keilförmig ausgebildete puffernde Stück 22 des Druckstücks 21 greift, so daß die Mantelhülse 14 für sich allein von der Adapterhülse 15 abgeschoben oder aber auch auf diese aufgezogen werden kann.4 D, the casing sleeve 14 is provided with an annular groove into which the wedge-shaped, buffering piece 22 of the pressure piece 21 engages, so that the casing sleeve 14 is pushed off by itself from the adapter sleeve 15 or else is pulled onto it can.
Nach dem Ausführungsbeispiel gemäß Fig. 4 A ist das Druckstück mit einem Sensor, beispielsweise einem optischen Sensor 37 versehen, der eine auf der Mantelhülse angebrachte Marke erfaßt, so daß für die Druckaufnahme die Drehstellung der Mantelhülse erfaßt werden kann.According to the embodiment of FIG. 4 A, the pressure piece is provided with a sensor, for example an optical sensor 37, which detects a mark attached to the casing sleeve, so that the rotational position of the casing sleeve can be detected for the pressure absorption.
Soweit zur Anpassung der Druckstücke 21 an die Mantel- oder Adapterhülse des Kurzhubzylinders 26 nicht ausreichen sollte, kann zur Anpassung auch das Seitenregister des Druckwerks benutzt werden. Insofar as it is not sufficient to adapt the pressure pieces 21 to the jacket or adapter sleeve of the short-stroke cylinder 26, the side register of the printing unit can also be used for the adaptation.

Claims

DruckmaschinePatentansprüche Press patent claims
1. Druckmaschine, vorzugsweise Fiexodruckmaschine, mit mindestens einem Gegendruckzylinder (8) und mit mindestens einer mit einer Adapterhülse (15) und/oder Mantelhülse (14) besetzten Druckwalze (10), wobei die Lager der Druckwaize (10) relativ zu dem Gegendruckzylinder (9) in Führungen verfahrbar sind und ein Lager (13) zum Abfangen des Wellenzapfens (12) des freien Endes der Druckwalze (10) vorgesehen ist,1. Printing machine, preferably a Fiexo printing machine, with at least one impression cylinder (8) and with at least one printing roller (10) with an adapter sleeve (15) and / or jacket sleeve (14), the bearings of the pressure rollers (10) being relative to the impression cylinder ( 9) can be moved in guides and a bearing (13) is provided for intercepting the shaft journal (12) of the free end of the pressure roller (10),
dadurch gekennzeichnet,characterized,
daß zum Zwecke der relativen Lageänderung zwischen Adapterhülse (15) und/oder Mantelhülse (14) und der Druckwalze in dem die Druckwalze (10) fliegend lagernden Lagerbock (11 ) parallel zur Mittellinie der Druckwalze (10) mindestens eine Welle, vorzugsweise jedoch zwei Wellen (17, 18), längsver- schieblich und drehbar gelagert sind, die an ihren inneren, der Druckwalze (10) zugewandten Enden radiale Greifarme (20) tragen.that for the purpose of the relative change in position between the adapter sleeve (15) and / or jacket sleeve (14) and the pressure roller in the bearing block (11) overhung in the bearing of the pressure roller (10) parallel to the center line of the pressure roller (10) at least one shaft, but preferably two shafts (17, 18), longitudinally are slidably and rotatably supported on their inner ends facing the pressure roller (10) with radial gripping arms (20).
2. Druckmaschine nach Anspruch 1 , dadurch gekennzeichnet, daß die radialen Arme (20) mit endseitigen Druckstücken (21 ) versehen sind.2. Printing machine according to claim 1, characterized in that the radial arms (20) are provided with end-side pressure pieces (21).
3. Druckmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Wellen (17, 18) an ihren äußeren Enden in einem Haltestück (22) drehbar gelagert und mit einem Drehantrieb versehen sind.3. Printing machine according to claim 1 or 2, characterized in that the shafts (17, 18) are rotatably mounted at their outer ends in a holding piece (22) and are provided with a rotary drive.
4. Druckmaschine nach Anspruch 3, dadurch gekennzeichnet, daß das Haltestück (22) mit einem Antrieb zum Verschieben dieses relativ zu dem Lagerbock (11 ) versehen ist.4. Printing machine according to claim 3, characterized in that the holding piece (22) is provided with a drive for displacing it relative to the bearing block (11).
5. Druckmaschine, vorzugsweise Fiexodruckmaschine, mit mindestens einem Gegendruckzylinder (8) und mindestens einer Druckwalze (10), die einendig fliegend im Gestell (1) gelagert ist, wobei die Lager der Druckwalze (10) relativ zu dem Gegendruckzylinder (9) in Führungen verfahrbar und ein Lager (13) zum Abfangen des Wellenzapfens (12) des freien Endes der Druckwalze (10) vorgesehen ist,5. Printing machine, preferably Fiexo printing machine, with at least one impression cylinder (8) and at least one printing roller (10) which is mounted on one end overhung in the frame (1), the bearings of the printing roller (10) relative to the impression cylinder (9) in guides can be moved and a bearing (13) is provided for intercepting the shaft journal (12) of the free end of the pressure roller (10),
dadurch gekennzeichnet, daß in dem die Druckwalze (10) fliegend lagernden Lagerbock (11 parallel zur Mittellinie der Druckwalze (10) zwei Wellen (17, 18) langsverschieblich und drehbar gelagert sind, die an ihren inneren, der Druckwalze (10) zugewandten Enden radiale Arme (20) mit endseitigen Druckstücken (21 ) tragen,characterized in that in the bearing block (11) overhung the pressure roller (10), two shafts (17, 18) are mounted so that they can move slowly and rotatably parallel to the center line of the pressure roller (10) Carry arms (20) with thrust pieces (21) on the end,
daß die Wellen (17, 18) an ihren äußeren Enden in einem Haltestück (22) drehbar gelagert und mit einem Drehantrieb versehen sind undthat the shafts (17, 18) are rotatably supported at their outer ends in a holding piece (22) and provided with a rotary drive and
daß das Haltestück (22) mit einem dieses relativ zu dem Lagerbock (11 ) verfahrbaren Antrieb versehen ist. that the holding piece (22) is provided with a drive which is movable relative to the bearing block (11).
6. Druckmaschine nach Anspruch 5, dadurch gekennzeichnet, daß der Drehantrieb aus einer Druckmittel-Kolben-Zylinder-Einheit besteht, deren Zylinder (24) und deren Kolbenstange (25) jeweils an den Enden von radialen Hebeln (23) der Wellen (17, 18) angelenkt sind.6. Printing machine according to claim 5, characterized in that the rotary drive consists of a pressure medium-piston-cylinder unit, the cylinder (24) and the piston rod (25) each at the ends of radial levers (23) of the shafts (17, 18) are articulated.
7. Druckmaschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß der das Haltestück (22) in axialer Richtung zur Druckwalze- (10) verfahrenden Antrieb und mindestens einer Druckmittel-Kolben-Zylinder-Einheit besteht, deren Enden an dem Haltestück (22) und dem Lagerbock (11) angreifen.7. Printing machine according to claim 5 or 6, characterized in that the holding piece (22) in the axial direction to the pressure roller (10) moving drive and at least one pressure medium piston-cylinder unit, the ends of which on the holding piece (22) and attack the bearing block (11).
8. Druckmaschine nach Anspruch 7, dadurch gekennzeichnet, daß eine Druck- mittel-Koiben-Zylinder-Einheit mit einem Kurzhubzylinder (26) und eine Druckmittel-Kolben-Zylinder-Einheit mit einem Weithubzylinder (30) miteinander gekuppelt und die äußeren Seiten der beiden Druckmittel-Kolben-Zylinder- Einheiten einerseits mit dem Haltestück (22) und andererseits mit dem Lagerbock (11) verbunden sind.8. Printing machine according to claim 7, characterized in that a pressure medium-piston-cylinder unit with a short stroke cylinder (26) and a pressure medium piston-cylinder unit with a wide stroke cylinder (30) are coupled together and the outer sides of the two Pressure medium piston-cylinder units are connected on the one hand to the holding piece (22) and on the other hand to the bearing block (11).
9. Druckmaschine nach Anspruch 8, dadurch gekennzeichnet, daß der Weithubzylinder (30) in einer Bohrung (31 ) des Lagerbocks (11 ) gehaltert ist.9. Printing machine according to claim 8, characterized in that the wide-stroke cylinder (30) is held in a bore (31) of the bearing block (11).
10. Druckmaschine nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß die Druckstücke (21) der Form der von der Druckwalze (10) abzuschiebenden Mantelhülse (14) und/oder Adapterhülse (15) angepaßt sind.10. Printing machine according to one of claims 5 to 9, characterized in that the pressure pieces (21) are adapted to the shape of the sleeve (14) and / or adapter sleeve (15) to be pushed off by the printing roller (10).
11. Druckmaschine nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß die Mantelhülse (14) an ihren dem der die Druckwalze (10) fliegend lagernden Lagerbock (11 ) zugewandten Endbereich in einer Ringnut und die Druckstücke (21 ) mit in diese Ringnut greifenden Keilen versehen sind. 11. Printing machine according to one of claims 5 to 9, characterized in that the casing sleeve (14) at its end region facing the bearing block (11) which overhung the printing roller (10) in an annular groove and the pressure pieces (21) with in this annular groove gripping wedges are provided.
EP03735390A 2002-05-08 2003-05-08 Replacement of cartridgelike printing plates in a flexo printing machine Expired - Lifetime EP1511630B1 (en)

Applications Claiming Priority (3)

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DE10220608 2002-05-08
DE10220608A DE10220608C1 (en) 2002-05-08 2002-05-08 press
PCT/EP2003/005064 WO2003095205A2 (en) 2002-05-08 2003-05-08 Replacement of cartridgelike printing plates in a flexo printing machine

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EP1511630A2 true EP1511630A2 (en) 2005-03-09
EP1511630B1 EP1511630B1 (en) 2010-07-28

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US (1) US7225736B2 (en)
EP (1) EP1511630B1 (en)
AU (1) AU2003236651A1 (en)
DE (2) DE10220608C1 (en)
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WO (1) WO2003095205A2 (en)

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EP1511630B1 (en) 2010-07-28
ES2346862T3 (en) 2010-10-21
US20050166774A1 (en) 2005-08-04
WO2003095205A3 (en) 2004-06-17
WO2003095205A2 (en) 2003-11-20
AU2003236651A1 (en) 2003-11-11
US7225736B2 (en) 2007-06-05
DE50312929D1 (en) 2010-09-09
AU2003236651A8 (en) 2003-11-11
DE10220608C1 (en) 2003-11-06

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