EP1511630B1 - Replacement of cartridgelike printing plates in a flexo printing machine - Google Patents

Replacement of cartridgelike printing plates in a flexo printing machine Download PDF

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Publication number
EP1511630B1
EP1511630B1 EP03735390A EP03735390A EP1511630B1 EP 1511630 B1 EP1511630 B1 EP 1511630B1 EP 03735390 A EP03735390 A EP 03735390A EP 03735390 A EP03735390 A EP 03735390A EP 1511630 B1 EP1511630 B1 EP 1511630B1
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EP
European Patent Office
Prior art keywords
printing press
cylinder
impression roll
bearing block
sleeve
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
EP03735390A
Other languages
German (de)
French (fr)
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EP1511630A2 (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
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Publication of EP1511630A2 publication Critical patent/EP1511630A2/en
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Publication of EP1511630B1 publication Critical patent/EP1511630B1/en
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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 machine, preferably a flexographic printing machine, with at least one impression cylinder and at least one occupied with an adapter sleeve and / or a jacket sleeve pressure roller, the bearings of the pressure roller are movable relative to the impression cylinder in guides and a bearing for intercepting the journal of the free end of the pressure roller is provided, which is removable, wherein the pressure roller is then stored in the bearing of the bearing block flying, and wherein for the purpose of relative change in position between the adapter sleeve and / or jacket sleeve and the pressure roller two waves are provided which are parallel to the center line of the pressure roller Are mounted longitudinally displaceable.
  • Such a printing press is for example from the DE 197 05 369 A1 known, in which the bearing block with the interceptor for the pressure roller in the printing press frame is moved transversely to the pressure roller, so that the cantilevered pressure roller from one side, for example, through a window of the side frame of the printing press frame is freely accessible to a jacket sleeve and / or to push off an adapter sleeve for the jacket sleeve and raise.
  • the DE 100 44 909 A1 shows an apparatus and method for removing a printing sleeve from a printing press cylinder.
  • a first embodiment of a device for removing cylinder sleeves comprises a band which can be fastened by means of a tensioning device on the cylinder sleeve.
  • the second embodiment of a device for removing cylinder sleeves of DE 100 44 909 A1 includes a clamp arm that can grasp the cylinder sleeve of the cylinder. In both cases, the sleeve can be grasped from the operating side of the printing press and pulled off from the cylinder core. This is done manually or by means of a robot.
  • a removal device is described which is arranged on the operating side of the opposite end of the pressure roller. About guides moving in the axial direction gripping arms are also moved radially so that they can take the sleeve on its outer periphery, move relative to the core and then release again.
  • the EP 1 090 754 A1 shows a device for changing a printing cylinder sleeve in a printing press
  • the interior of the core is first applied in known manner through holes with compressed air.
  • the ejector is extended by means of the actuating cylinder, so that the pressure cylinder sleeve is a piece far away from the cylinder core. Since the ejector is arranged fixed to the frame on the machine frame, the carriage in which the pressure cylinder is mounted, must first be aligned so that only the pressure cylinder sleeve to be deported is detected by the piston (ejector) of the actuating cylinder.
  • the object of the invention is therefore to provide a printing machine of the type specified, in which can be pushed out of the pressure roller in a simple manner, the jacket sleeve and / or the adapter sleeve.
  • the radial arms are provided with end pressure pieces.
  • the shafts can be rotatably mounted at their outer ends with a holding piece and provided with a rotary drive.
  • the holding piece is expediently provided with a drive for its displacement relative to the bearing block.
  • the printing press according to the invention can be after the removal of the interceptor from the free end of the cantilevered pressure roller from this easily deport a jacket sleeve and / or an adapter sleeve, that the plungers by axial movement and radial pivoting in a corresponding system to the end the jacket sleeve and / or the adapter sleeve are brought, so that subsequently by axial movement of the pressure pieces relative to the pressure roller, the jacket sleeve and / or the adapter sleeve can be deported from the pressure roller.
  • the rotary drive consists of a pressure medium piston-cylinder unit whose cylinder and the piston rod are articulated in each case at the ends of the radial lever of the shafts. In this way, it is easy to give the radial levers a pincer-like opening or closing movement.
  • the drive in the axial direction to the pressure roller traversing the holding piece consists of at least one pressure medium piston-cylinder unit whose ends 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 Weithubzylinder coupled together and the outer sides are connected on the one hand to the holding piece and on the other hand with the bearing block.
  • the Kurzhubzylinder the correct position applying the thrust pieces to the jacket sleeve and / or the adapter sleeve and the Weithubzylinder the removal of the jacket sleeve and / or the adapter sleeve of the pressure roller and possibly also the mounting.
  • the Weithubzylinder is suitably mounted in a bore of the bearing block.
  • the plungers are adapted to the shape of the sheath sleeve and / or adapter sleeve to be deported by the pressure roller.
  • the jacket sleeve For pushing and also for mounting the jacket sleeve on the pressure roller or the adapter sleeve, the jacket sleeve can be provided at its the pressure roller flying overlying bearing block facing end portion with an annular groove and the plungers with cross in this annular grooves wedges.
  • Fig. 1 is a side view of the front of two associated with the printing machine frame cantilevered side frames 1, which are provided with apertures 2 forming windows in the area on guide rails 3, the bearing blocks 4, 5 a pressure roller 10 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 can be adjusted to the pressure roller 10 and from this and the pressure roller 10 can be adjusted by itself or together with the anilox roller 7 to the impression cylinder 8.
  • the two bearing blocks 4 for the pressure roller 10 are moved by spindle drives 9.
  • the drives for the bearing blocks 5 of the anilox roller are not shown.
  • the pressure roller 10 is cantilevered in a bearing block 11, which is guided in the rear side frame 1 'on guide rails 3' movable.
  • the front shaft journal 12 of the pressure roller 10 is mounted in a trapping 13 during the printing operation, which in the Fig. 2 apparent position of the shaft journal 12 is released and moved to the side, so that the pressure roller and held on this jacket sleeve 14 and this carrying adapter sleeve 15 are freely accessible through the window 2 of the front side frame 1.
  • the type of storage of the shaft journal 12 of the pressure roller 10 in the interceptor storage 13 and the release of the shaft journal 12 from the interceptor storage 13 and the lateral process of this interceptor storage are from the DE 197 05 369 A1 known.
  • the shafts 17, 18 are longitudinally displaceably and rotatably guided and supported parallel to each other and at a distance and symmetrically to a center line of the pressure roller 10 intersecting vertical plane below the pressure roller 10.
  • On the bearing block 11 passing through the front ends 19 of the shafts 17, 18 are forceps-like radial arms 20 are non-rotatably mounted, carry their freely upwardly projecting ends jaws in the form of pressure pieces 21.
  • the rear ends of the shafts 17, 18 are rotatably mounted in a plate-shaped holding piece 22 but axially immovable.
  • a plate-shaped holding piece 22 At the holding piece 22 passing through the rear shaft journal of the shafts 17, 18 are non-rotatably mounted radial lever 23, at the free ends of the cylinder 24 and on the other hand the piston rod 25 of a pressure medium piston-cylinder unit is mounted.
  • the piston rod 27 On the holding piece 22 of the short-stroke cylinder 26 of a pressure medium-piston-cylinder unit is fixed, the piston rod 27 is connected by a coupling piece 28 with the piston rod 29 of a Weithubzylinders 30 of a pressure medium piston-cylinder unit in a bore 31 of the bearing block 11 is attached.
  • the jaws or plungers 21 carry at their ends cushioning or buffering pieces 22, which serve the gentle contact with the jacket sleeve 14 or the adapter sleeve 15.
  • the pressure piece 21 is applied by appropriate extension of the Kurzhubzylinders 26 and pivoting the arms 20 to the front end side of the adapter sleeve 15 so that the adapter sleeve 15 can be deported from the pressure roller 10 by actuation of the Weithubzylinders 30.
  • the Fig. 4B shows the right in Fig. 2 circled part.
  • Fig. 4 A, C and D. show operations that the left circled part in Fig. 2 affect.
  • the buffering part 22 of the pressure piece 21 is applied only to the end face of the jacket sleeve 14, so that initially only this can be deported from the adapter sleeve 15.
  • the according to Fig. 4C specially designed pressure piece 21 is provided with a shoulder 35 which abuts against an annular projection 36 of the adapter sleeve 15 and thus shunts them from the pressure roller 10, if already the jacket sleeve has been deported by a predetermined distance from the adapter sleeve 15.
  • This type of gradual deportation facilitates handling when the adapter sleeve with the jacket sleeve of the Pressure roller is deported because then the jacket sleeve can be easily deducted from the adapter sleeve.
  • the jacket 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 jacket sleeve 14 can be deported by itself from the adapter sleeve 15 or can be mounted on this.
  • the pressure piece is provided with a sensor, such as an optical sensor 37 which detects a mounted on the jacket sleeve brand, so that the rotational position of the jacket sleeve can be detected for the pressure pickup.
  • a sensor such as an optical sensor 37 which detects a mounted on the jacket sleeve brand, so that the rotational position of the jacket sleeve can be detected for the pressure pickup.
  • the page register of the printing unit can be used to adjust.

Landscapes

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

Description

Die Erfindung betrifft eine Druckmaschine, vorzugsweise eine Flexodruckmaschine, 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, welches entfernbar ist, wobei die Druckwalze anschließend im Lager des Lagerbocks fliegend gelagert ist, und wobei zum Zwecke der relativen Lageänderung zwischen Adapterhülse und/oder Mantelhülse und der Druckwalze zwei Wellen vorgesehen sind, welche parallel zur Mittellinie der Druckwalze Längsverschieblich gelagert sind.The invention relates to a printing machine, preferably a flexographic printing machine, with at least one impression cylinder and at least one occupied with an adapter sleeve and / or a jacket sleeve pressure roller, the bearings of the pressure roller are movable relative to the impression cylinder in guides and a bearing for intercepting the journal of the free end of the pressure roller is provided, which is removable, wherein the pressure roller is then stored in the bearing of the bearing block flying, and wherein for the purpose of relative change in position between the adapter sleeve and / or jacket sleeve and the pressure roller two waves are provided which are parallel to the center line of the pressure roller Are mounted longitudinally displaceable.

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 Druckwalze von einer Seite, beispielsweise durch ein Fenster des Seitengestells des Druckmaschinengestells frei zugänglich ist, um eine Mantelhülse und/oder eine Adapterhülse für die Mantelhülse abschieben und aufziehen zu können.Such a printing press is for example from the DE 197 05 369 A1 known, in which the bearing block with the interceptor for the pressure roller in the printing press frame is moved transversely to the pressure roller, so that the cantilevered pressure roller from one side, for example, through a window of the side frame of the printing press frame is freely accessible to a jacket sleeve and / or to push off an adapter sleeve for the jacket sleeve and raise.

Um beispielsweise mit Klischees versehene Mantelhülsen und/oder Adapterhülsen voneinander und/oder von einer Druckwalze abschieben und auch wieder aufschieben zu können, ist es beispielsweise aus den DE 198 46 677 A1 und DE 200 10 068 U1 bekannt, die Mantel- und/oder Adapterhülsen durch Druckluft oder hydraulisch zu expandieren und zu kontrahieren.In order, for example, to dispense jacket sleeves and / or adapter sleeves provided with clichés from one another and / or from a pressure roller and also postpone it again it is for example from the DE 198 46 677 A1 and DE 200 10 068 U1 known to expand the jacket and / or adapter sleeves by compressed air or hydraulically and contract.

Die DE 100 44 909 A1 zeigt eine Vorrichtung und ein Verfahren zum Abnehmen einer Druckhülse, von einem Druckmaschinenzylinder. Ein erstes Ausführungsbeispiel einer Vorrichtung zum Abnehmen von Zylinderhülsen umfasst ein Band, welches mittels einer Spannvorrichtung auf der Zylinderhülse befestigt werden kann. Das zweite Ausführungsbeispiel einer Vorrichtung zum Abnehmen von Zylinderhülsen der DE 100 44 909 A1 umfasst einen Klemmarm, der die Zylinderhülse des Zylinders ergreifen kann. In beiden Fällen kann von der Bedienseite der Druckmaschine aus die Hülse ergriffen werden und von dem Zylinderkern abgezogen werden. Dies erfolgt händisch oder mittels eines Roboters. In einer weiteren Ausführungsform ist eine Abnehmvorrichtung beschrieben, die an dem der Bedienseite gegenüber liegenden Ende der Druckwalze angeordnet ist. Über Führungen werden die in axialer Richtung bewegten Greifarme auch radial bewegt, so dass sie die Hülse an ihrem Außenumfang ergreifen, relativ zum Kern verschieben und anschließend wieder loslassen können.The DE 100 44 909 A1 shows an apparatus and method for removing a printing sleeve from a printing press cylinder. A first embodiment of a device for removing cylinder sleeves comprises a band which can be fastened by means of a tensioning device on the cylinder sleeve. The second embodiment of a device for removing cylinder sleeves of DE 100 44 909 A1 includes a clamp arm that can grasp the cylinder sleeve of the cylinder. In both cases, the sleeve can be grasped from the operating side of the printing press and pulled off from the cylinder core. This is done manually or by means of a robot. In a further embodiment, a removal device is described which is arranged on the operating side of the opposite end of the pressure roller. About guides moving in the axial direction gripping arms are also moved radially so that they can take the sleeve on its outer periphery, move relative to the core and then release again.

Die EP 1 090 754 A1 zeigt eine Vorrichtung zum Wechseln einer Druckzylinderhülse in einer Druckmaschine, Um die Druckzylinderhülse vom Zylinderkern abzuziehen, wird zunächst in bekannter Weise das Innere des Kerns über Löcher mit Druckluft beaufschlagt. Anschließend wird mithilfe des Stellzylinders der Ausstoßer ausgefahren, so dass die Druckzylinderhülse ein stückweit vom Zylinderkern abgeschoben wird. Da der Ausstoßer gestellfest am Maschinengestell angeordnet ist, muss der Schlitten, in welchem der Druckzylinder gelagert ist, zunächst derart ausgerichtet werden, dass nur die abzuschiebende Druckzylinderhülse vom Kolben (Ausstoßer) des Stellzylinders erfasst wird.The EP 1 090 754 A1 shows a device for changing a printing cylinder sleeve in a printing press, To remove the printing cylinder sleeve from the cylinder core, the interior of the core is first applied in known manner through holes with compressed air. Subsequently, the ejector is extended by means of the actuating cylinder, so that the pressure cylinder sleeve is a piece far away from the cylinder core. Since the ejector is arranged fixed to the frame on the machine frame, the carriage in which the pressure cylinder is mounted, must first be aligned so that only the pressure cylinder sleeve to be deported is detected by the piston (ejector) of the actuating cylinder.

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 which can be pushed out of the pressure roller in a simple manner, the jacket sleeve and / or the adapter sleeve.

Erfindungsgemäß wird diese Aufgabe durch eine Druckmaschine mit allen Merkmalen im Anspruch 1 gelöst.According to the invention this object is achieved by a printing press with all the features in claim 1.

Zweckmäßigerweise sind die radialen Arme mit endseitigen Druckstücken versehen.Conveniently, the radial arms are provided with end 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 mounted at their outer ends with a holding piece and 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.

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 press according to the invention can be after the removal of the interceptor from the free end of the cantilevered pressure roller from this easily deport a jacket sleeve and / or an adapter sleeve, that the plungers by axial movement and radial pivoting in a corresponding system to the end the jacket sleeve and / or the adapter sleeve are brought, so that subsequently by axial movement of the pressure pieces relative to the pressure roller, the jacket sleeve and / or the adapter sleeve can be deported from 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.Conveniently, the rotary drive consists of a pressure medium piston-cylinder unit whose cylinder and the piston rod are articulated in each case at the ends of the radial lever of the shafts. In this way, it is easy to give the radial levers a pincer-like opening or closing movement.

Vorzugsweise besteht der das Haltestück in axialer Richtung zur Druckwalze verfahrende Antrieb aus mindestens einer Druckmittel-Kolben-Zylinder-Einheit, deren Enden an dem Haltestück und dem Lagerbock angreifen.Preferably, the drive in the axial direction to the pressure roller traversing the holding piece consists of at least one pressure medium piston-cylinder unit whose ends engage the holding piece and the bearing block.

Nach einer Weiterentwicklung der Erfindung ist vorgesehen, dass eine Druckmittel-Kolben-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 Weithubzylinder coupled together and the outer sides are connected on the one hand to the holding piece and on the other hand with the bearing block. In this embodiment, the Kurzhubzylinder the correct position applying the thrust pieces to the jacket sleeve and / or the adapter sleeve and the Weithubzylinder the removal of the jacket sleeve and / or the adapter sleeve of the pressure roller and possibly also the mounting.

Um eine möglichst kurze Bauweise zu ermöglichen, ist der Weithubzylinder zweckmäßigerweise in einer Bohrung des Lagerbocks gehaltert.In order to allow the shortest possible construction, the Weithubzylinder is suitably mounted in a bore of the bearing block.

Zweckmäßigerweise sind die Druckstücke der Form der von der Druckwalze abzuschiebenden Mantelhülse und/oder Adapterhülse angepaßt.Conveniently, the plungers are adapted to the shape of the sheath sleeve and / or adapter sleeve to be deported by the pressure roller.

Zum Abschieben und auch zum Aufziehen der Mantelhülse auf die Druckwalze oder die Adapterhülse können die Mantelhülse an ihrem dem die Druckwalze fliegend lagernden Lagerbock zugewandten Endbereich mit einer Ringnut und die Druckstücke mit in diese Ringnut greifenden Keilen versehen sein.For pushing and also for mounting the jacket sleeve on the pressure roller or the adapter sleeve, the jacket sleeve can be provided at its the pressure roller flying overlying bearing block facing end portion with an annular groove and the plungers with cross in this annular grooves wedges.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
eine Seitenansicht eines Seitengestells einer Flexo- druckmaschine, in dem die Lagerböcke einer Druckwal- ze und einer Rasterwalze gelagert sind, die aneinander und an einen Gegendruckzylinder anstellbar sind,
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 Druckwalze in schematischer Darstellung,
Fig. 3
einen Schnitt durch die Druckwalze längs der Linie III-III in Fig. 2 und
Fig. 4 A bis D
unterschiedliche Stellungen von anschwenkbaren und in axialer Richtung bewegbaren Druckstücken an auszu- schiebenden Mantel- und/oder Adapterhülsen.
An embodiment of the invention will be explained below with reference to the drawing. In this shows
Fig. 1
3 is a side view of a side frame of a flexographic printing press in which the bearing blocks of a pressure roller and an anilox roller are mounted, which can be adjusted to one another and to a counter-pressure cylinder,
Fig. 2
a top view of a side-mounted in a cantilevered pressure roller with removed interceptor and means for pushing a jacket sleeve and / or an adapter sleeve of the pressure roller in a schematic representation,
Fig. 3
a section through the pressure roller along the line III-III in Fig. 2 and
Fig. 4 A to D
different positions of pivotable and movable in the axial direction pressure pieces to be pushed out jacket and / or adapter sleeves.

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 Führungsschienen 3 die Lagerböcke 4, 5 einer Druckwalze 10 und einer Rasterwalze 7 in der Weise verfahrbar gelagert sind, daß die Rasterwalze 7 an die Druckwalze 10 an und von dieser abstellbar ist und die Druckwalze 10 für sich allein oder zusammen mit der Rasterwalze 7 an den Gegendruckzylinder 8 anstellbar ist. Die beiden Lagerböcke 4 für die Druckwalze 10 sind durch Spindeltriebe 9 verfahrbar. Die Antriebe für die Lagerböcke 5 der Rasterwalze sind nicht dargestellt.Out Fig. 1 is a side view of the front of two associated with the printing machine frame cantilevered side frames 1, which are provided with apertures 2 forming windows in the area on guide rails 3, the bearing blocks 4, 5 a pressure roller 10 and an anilox roller 7 are movably mounted in such a way that the anilox roller 7 can be adjusted to the pressure roller 10 and from this and the pressure roller 10 can be adjusted by itself or together with the anilox roller 7 to the impression cylinder 8. The two bearing blocks 4 for the pressure roller 10 are 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.How out Fig. 2 it can be seen, the pressure roller 10 is cantilevered in a bearing block 11, which is guided in the rear side frame 1 'on guide rails 3' movable. The front shaft journal 12 of the pressure roller 10 is mounted in a trapping 13 during the printing operation, which in the Fig. 2 apparent position of the shaft journal 12 is released and moved to the side, so that the pressure roller and held on this jacket sleeve 14 and this carrying adapter sleeve 15 are freely accessible through the window 2 of the front side frame 1. The type of storage of the shaft journal 12 of the pressure roller 10 in the interceptor storage 13 and the release of the shaft journal 12 from the interceptor storage 13 and the lateral process of this interceptor storage are from the DE 197 05 369 A1 known.

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 längsverschieblich 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 auskragende Enden Backen in Form von Druckstücken 21 tragen.In the bearing block 11, the shafts 17, 18 are longitudinally displaceably and rotatably guided and supported parallel to each other and at a distance and symmetrically to a center line of the pressure roller 10 intersecting vertical plane below the pressure roller 10. On the the bearing block 11 passing through the front ends 19 of the shafts 17, 18 are forceps-like radial arms 20 are non-rotatably mounted, carry their freely upwardly projecting ends jaws in the form of pressure pieces 21.

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.The rear ends of the shafts 17, 18 are rotatably mounted in a plate-shaped holding piece 22 but axially immovable. At the holding piece 22 passing through the rear shaft journal of the shafts 17, 18 are non-rotatably mounted radial lever 23, at the free ends of the cylinder 24 and on the other hand the piston rod 25 of a pressure medium piston-cylinder unit is mounted. On the holding piece 22 of the short-stroke cylinder 26 of a pressure medium-piston-cylinder unit is fixed, the piston rod 27 is connected by a coupling piece 28 with the piston rod 29 of a Weithubzylinders 30 of a pressure medium piston-cylinder unit in a bore 31 of 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 plungers 21 carry at their ends cushioning or buffering pieces 22, which serve the 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 10 abgeschoben werden kann. Die Fig. 4 B zeigt den rechten in Fig. 2 eingekreisten Teil.In the out Fig. 4B apparent position, the pressure piece 21 is applied by appropriate extension of the Kurzhubzylinders 26 and pivoting the arms 20 to the front end side of the adapter sleeve 15 so that the adapter sleeve 15 can be deported from the pressure roller 10 by actuation of the Weithubzylinders 30. The Fig. 4B shows the right in Fig. 2 circled part.

Die Fig. 4 A, C und D zeigen Betriebsweisen, die den linken eingekreisten Teil in Fig. 2 betreffen.The Fig. 4 A, C and D. show operations that the left circled part in Fig. 2 affect.

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 Druckstück 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. 4C the buffering part 22 of the pressure piece 21 is applied only to the end face of the jacket sleeve 14, so that initially only this can be deported from the adapter sleeve 15. The according to Fig. 4C specially designed pressure piece 21 is provided with a shoulder 35 which abuts against an annular projection 36 of the adapter sleeve 15 and thus shunts them from the pressure roller 10, if already the jacket sleeve has been deported by a predetermined distance from the adapter sleeve 15. This type of gradual deportation facilitates handling when the adapter sleeve with the jacket sleeve of the Pressure roller is deported because then the jacket sleeve can be easily deducted 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.According to the embodiment Fig. 4 D the jacket 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 jacket sleeve 14 can be deported by itself from the adapter sleeve 15 or can be mounted on this.

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 according to Fig. 4 A the pressure piece is provided with a sensor, such as an optical sensor 37 which detects a mounted on the jacket sleeve brand, so that the rotational position of the jacket sleeve can be detected for the pressure pickup.

Soweit die 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.As far as the adaptation of the plungers 21 to the jacket or adapter sleeve of the short-stroke cylinder 26 should not be sufficient, the page register of the printing unit can be used to adjust.

Claims (10)

  1. Printing press, preferably flexographic printing press,
    - having at least one back-pressure cylinder (8), and
    - having at least one impression roll (10) which is fitted with an adapter sleeve (15) and/or casing sleeve (14),
    - it being possible for the bearings of the impression roll (10) to be displaced in guides relative to the back-pressure cylinder (8), and one bearing (13) which can be removed being provided for supporting the shaft journal (12) of the free end of the impression roll (10), the impression roll subsequently being mounted in a floating manner in the bearing of the bearing block (11), and
    - two shafts (17, 18) which are mounted such that they can be displaced longitudinally parallel to the centre line of the impression roll (10) being provided for the purpose of the relative positional change between the adapter sleeve (15) and/or casing sleeve (14) and the impression roll (10),
    characterized
    - in that the shafts (17, 18) are mounted longitudinally displaceably in the bearing block (11) which mounts the impression roll (10) in a floating manner,
    - in that each shaft (17, 18) comprises a radial gripping arm (20) at its front end (19) which faces the impression roll (10),
    - in that the shafts (17, 18) are mounted in the bearing block such that they can be rotated about their longitudinal axes, and
    - in that parts of each gripping arm can be brought into contact with the end regions of the casing sleeve and/or the adapter sleeve by axial displacement and radial pivoting.
  2. Printing press according to Claim 1, characterized in that the radial gripping arms (20) are provided with end-side pressure pieces (21).
  3. Printing press according to Claim 1 or 2, characterized in that the shafts (17, 18) are held rotatably in a holding piece (22) at their outer ends and are provided with a rotary drive.
  4. Printing press 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. Printing press according to Claim 3, characterized in that the rotary drive comprises a pressure medium/piston/cylinder unit, the cylinder (24) and piston rod (25) of which are articulated in each case at the ends of radial levers (23) of the shafts (17, 18).
  6. Printing press according to Claim 3 or 5, characterized in that the drive which displaces the holding piece (22) in the axial direction of the impression roll (10) comprises at least one pressure medium/piston/cylinder unit, the ends of which act on the holding piece (22) and the bearing block (11).
  7. Printing press according to Claim 6, characterized in that a pressure medium/piston/cylinder unit with a short-stroke cylinder (26) and a pressure medium/piston/cylinder unit with a long-stroke cylinder (30) are coupled to one another and the outer sides of the two pressure medium/piston/cylinder units are connected firstly to the holding piece (22) and secondly to the bearing block (11).
  8. Printing press according to Claim 7, characterized in that the long-stroke cylinder (30) is held in a hole (31) of the bearing block (11).
  9. Printing press according to one of Claims 2 to 8, characterized in that the pressure pieces (21) are adapted to the shape of the adapter sleeve (15) and/or casing sleeve (14) to be pushed off from the impression roll (10).
  10. Printing press according to one of Claims 2 to 9, characterized in that, at its end region which faces the bearing block (11) which mounts the impression roll (10) in a floating manner, a casing sleeve (14) is provided with an annular groove and the pressure pieces (21) are provided with wedges which engage into the said annular groove.
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)

Application Number Priority Date Filing Date Title
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

Publications (2)

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

Family

ID=28799024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735390A Expired - Lifetime EP1511630B1 (en) 2002-05-08 2003-05-08 Replacement of cartridgelike printing plates in a flexo printing machine

Country Status (6)

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US (1) US7225736B2 (en)
EP (1) EP1511630B1 (en)
AU (1) AU2003236651A1 (en)
DE (2) DE10220608C1 (en)
ES (1) ES2346862T3 (en)
WO (1) WO2003095205A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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DE10304109A1 (en) * 2003-01-31 2004-08-19 Windmöller & Hölscher Kg Printing unit of a printing press
DE102008040328B4 (en) 2008-07-10 2011-02-24 Windmöller & Hölscher Kg Inking unit of a printing press and method for sliding a cylinder sleeve
US20100122638A1 (en) * 2008-11-18 2010-05-20 C.G. Bretting Manufacturing Co., Inc. Flexographic Printing Apparatus And Method
US9120302B2 (en) 2012-04-30 2015-09-01 Rossini S.P.A. Bridge sleeves with diametrically expandable stabilizers
US9126395B2 (en) 2012-04-30 2015-09-08 Rossini S.P.A. Bridge sleeves with diametrically expandable stabilizers
US11014324B2 (en) * 2014-12-04 2021-05-25 Bobst Mex Sa Sleeve extractor, unit for converting a flat substrate, and method for extracting sleeves

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DE3702889A1 (en) * 1987-01-31 1988-08-11 Roland Man Druckmasch DEVICE FOR APPLYING A SLEEVE TO A PRINTING CYLINDER
US5289769A (en) * 1992-08-17 1994-03-01 W. O. Hickok Mfg., Co. Method and apparatus for changing a printing sleeve
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DE4341246C1 (en) 1993-12-03 1995-02-23 Roland Man Druckmasch Device for handling sleeves on cylinders
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DE19500729C2 (en) * 1995-01-12 2003-02-20 Mohndruck Graphische Betr E Gm Sleeve changing device for a printing unit
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US6386103B1 (en) * 1999-10-22 2002-05-14 Heidelberger Druckmaschinen Ag Blanket tube removal device
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US6647879B1 (en) * 2002-12-26 2003-11-18 Paper Converting Machine Co. Bridge sleeve for printing apparatus

Also Published As

Publication number Publication date
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
EP1511630A2 (en) 2005-03-09
DE50312929D1 (en) 2010-09-09
AU2003236651A8 (en) 2003-11-11
DE10220608C1 (en) 2003-11-06

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