EP1592556A1 - Printing group of a printing press - Google Patents

Printing group of a printing press

Info

Publication number
EP1592556A1
EP1592556A1 EP04701954A EP04701954A EP1592556A1 EP 1592556 A1 EP1592556 A1 EP 1592556A1 EP 04701954 A EP04701954 A EP 04701954A EP 04701954 A EP04701954 A EP 04701954A EP 1592556 A1 EP1592556 A1 EP 1592556A1
Authority
EP
European Patent Office
Prior art keywords
bearing block
printing unit
printing
unit according
locking bolt
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
EP04701954A
Other languages
German (de)
French (fr)
Other versions
EP1592556B1 (en
Inventor
Günter Rogge
Hans-Jörg MIESELER
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 EP1592556A1 publication Critical patent/EP1592556A1/en
Application granted granted Critical
Publication of EP1592556B1 publication Critical patent/EP1592556B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/307—Sliding bearings
    • 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

Definitions

  • the invention relates to a printing unit of a printing press according to the preamble of claim 1.
  • Such a printing press is known from DE 197 05 369 A1.
  • the printing and ink transfer rollers are mounted with their first ends overhung in a bearing block mounted on guide rails.
  • their second ends are supported by means of intercepting bearings, which in turn are attached to bearing blocks.
  • the interception bearing can be detached from the rollers and moved together with the bearing blocks. In this way, the second, free ends of the rollers can be released, for example for sleeving purposes or for other work. Since the bearing blocks supporting the intercepting bearings have to be moved, but the bearing blocks in which the rollers are overhung are held, it is also necessary to use the doctor chamber which connects the two bearing blocks or the doctor chamber holder from.
  • the object of the present invention is therefore to propose an arrangement in a printing unit, in which possible displacements and bending of the doctor chamber are avoided after loosening the fixed connection to the bearing block.
  • the object is achieved in that the doctor blade chamber holder assigned to the second bearing block is permanently supported on the second bearing block via supporting elements.
  • the doctor blade chamber holder therefore no longer needs to be completely detached from the second bearing block.
  • the doctor chamber or the doctor chamber holder carrying it no longer has to be placed on the printing machine frame.
  • the manual work associated with loosening or restoring the connection between the doctor blade chamber holder and the bearing block is eliminated.
  • the support elements comprise at least a linear guide, which are attached to the doctor chamber holder in such a way that the second bearing block can be displaced relative to the doctor chamber holder. In this way, the bearing block can be moved without the doctor chamber being deformed by a lifting or lowering movement.
  • the support elements advantageously consist of a rail fastened to the squeegee chamber holder and a guide carriage which is fixedly connected to the bearing block.
  • the bearing block is to be brought into the release position, then in a preferred embodiment the squeegee chamber holder is locked in the printing unit frame. This prevents bending of the doctor blade chamber as a result of slipping at the end even in the case of a printing unit which is not arranged horizontally, and damage to the surface of the ink transfer roller which may occur is thereby avoided.
  • doctor blade chamber holder is alternately connected to the bearing block or to the printing unit frame.
  • a locking bolt can be slidably attached to the squeegee chamber holder, which in one end position firmly connects the squeegee chamber holder to the bearing block and in its other end position fits into a recess in the printing unit frame.
  • a locking plate is advantageously attached to the anilox roller block, which can be clamped between the locking bolt and a stop.
  • both elements are provided with mutually parallel bevels on the mutually facing surfaces, so that the play is eliminated by changing the adjustment path of the locking pin.
  • the squeegee chamber holder is to be fixed on the printing unit frame, it is advantageous to provide a receptacle attached to the printing unit frame. Means for moving advantageously act on the locking bolts.
  • the means for displacing the locking bolt comprise a drive unit and means for transmitting the drive force.
  • a piston-cylinder unit can be provided as the drive unit.
  • a receptacle mounted on the piston of the piston-cylinder unit which engages around a pin attached to the locking bolt in the printing position of the anilox roller block.
  • Such an arrangement offers the advantage that lines for driving the piston-cylinder unit can be laid parallel to other, driven or controlled devices located on the anilox roller block.
  • FIG. 1 side view of a printing unit of a flexographic printing press of known type
  • FIG. 2 side view of a section of a printing unit of the type according to the invention, the anilox roller block in
  • Release position is. 3 view of the inking unit according to FIG. 2.
  • FIG. 4 view of the inking unit according to FIG. 3
  • FIG. 5 side view of a section of a printing unit of the type according to the invention, the anilox roller block being in
  • FIG. 6 is a view of the inking unit according to FIG. 5.
  • FIG. 7 is a view of the inking unit according to FIG. 6
  • Fig. 1 shows a flexographic printing machine of known type in the printing position.
  • An impression cylinder 1 on which the material web to be printed and not shown is guided, is mounted in a machine frame, not shown.
  • a printing unit frame 2, which is part of the printing unit 3, is fixedly connected to the machine frame.
  • the rear printing unit frame which is attached to the back of the impression cylinder on the machine frame, is not visible.
  • a plurality of such inking units can be provided on a flexographic printing press, which are then distributed over the circumference of the impression cylinder.
  • the printing roller 29 is mounted in an interception bearing 7.
  • the interception bearing is based on the pressure roller bearing block, which is supported on the slide 13 on the guide rail 12 and can be moved back and forth along the double arrow B via the motor 14 and the spindle 15.
  • the guide rail 12 is firmly connected to the printing unit frame.
  • the anilox roller 27 is mounted in the anilox roller bearing block 4 via an interception bearing 6. Via the motor 10 and the spindle 11, the slide 9, which runs on the rail 8 fastened to the printing unit frame 2 and on which the anilox roller bearing block 4 is held, can be moved along the double arrow A.
  • An ink chamber doctor blade 31 is attached to the doctor blade chamber holder 16 in a manner not described in detail.
  • This squeegee chamber holder 16 is connected to the anilox roller block 4 in a manner secured against rotation and movement, by means of two bolts 17 which reach through holes in the anilox roller bearing block 4 and grip in two holes of the squeegee chamber holder.
  • the anilox roller block is first moved away from the printing roller (print-down position). Then, after the intercepting bearing 6 has been released from the anilox roller 27, the anilox roller block 4 must be displaced relative to the anilox roller 27. For this purpose, the doctor blade chamber holder 16 is to be separated from the anilox roller bearing block 4 by pulling out the two bolts 17. After separation, the anilox roller block 4 can be moved into the so-called release position.
  • Figures 2 to 4 now show a section of the printing unit according to the invention. The illustration of the anilox roller bearing block 4 with the interception bearing and the guide elements has been omitted in FIG. 2 for the sake of clarity.
  • the anilox roller is in the print-off position and the bearing block 4 is in the release position, which enables free access to the anilox roller.
  • a guide rail 18 is fastened to the squeegee chamber holder 16 and is enclosed by a guide carriage 28 visible in FIG. 3. This carriage 28 is in turn attached to the anilox roller bearing 4.
  • the locking bolt 19 is displaceable in the guides 21, 22 along the arrow C. In the operating state shown here, the locking bolt 19 is fixed in the locking bolt receptacle 26 via the locking bolt base 25. In order to prevent an unintentional displacement of the locking bolt 19, a resilient pressure piece 37 is attached to the squeegee chamber holder 16.
  • the ball of the resilient pressure piece 37 acts on an annular groove 40 which is introduced into the locking bolt 19 at a corresponding position.
  • the resilient pressure piece is not shown in FIGS. 3 and 4 for the sake of clarity.
  • the locking pin receptacle is firmly connected to the printing unit frame 2.
  • a locking plate 30 is fastened to the anilox roller bearing block 4 and has a projection 39.
  • the projection 39 is chamfered on one side.
  • the projection 39 and the slope are dimensioned so that the projection 39 can be locked between the locking bolt head 24 and the stop 23.
  • a piston-cylinder unit 32 is fastened below the locking plate 30, the piston 33 of which protrudes downward.
  • a receptacle 34 and two rollers 35 are attached to the piston on both sides. The rollers 35 run in roller guides 36, 38, of which only the roller guide 36 is shown.
  • Figures 5 to 7 show the same section of the printing unit according to the invention, wherein the anilox roller block 4 is in the printing position.
  • the anilox roller block 4 is displaced in the direction of the anilox roller 27, so that the interception bearing 6 can encompass the free end of the anilox roller.
  • the receptacle 34 attached to the piston 33 also includes the pin 20 fastened in the locking pin 19.
  • the piston cylinder unit 32 can be actuated by actuating the piston cylinder unit 32 Locking bolts are moved upward and clamps the projection 39 of the locking plate between the stop 23 and the locking bolt head 24.
  • a constant pressurization by the piston-cylinder unit 32 ensures that the projection 39 is clamped without play due to the bevels of the projection 39 and the cylinder head 38. This enables a reproducibly exact position of the doctor blade chamber holder relative to the anilox roller block.
  • the locking bolt 19 can slide into a position in which, as shown in FIG. 7, the ball of the resilient pressure piece 37 acts on the lower annular groove 40, so that a further movement of the locking bolt 19 is prevented. A sufficient clamping of the projection 39 is ensured in this way even when there is no pressure applied.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The invention relates to a printing group (3) of a printing press, preferably a rotary press, comprising at least one ink-transmitting roller (27), at least one bearing block which can be displaced relative to the frame (2) of the printing group and within which one end of the ink-transmitting roller (27) can be mounted in the printing position while said end of the ink-transmitting roller (27) is released in the releasing position of the bearing block, and a doctor blade chamber support (16) which supports at least one doctor blade chamber (31) that can be placed against the ink-transmitting roller (27), and is connected in a torsion-proof and displacement-proof manner to the bearing block (4) in the printing position of the bearing block (4). The doctor blade chamber support (16) permanently rests on the bearing block (4) via supporting elements (18, 28).

Description

Druckwerk einer Druckmaschine Printing unit of a printing press
Die Erfindung betrifft ein Druckwerk einer Druckmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a printing unit of a printing press according to the preamble of claim 1.
Eine derartige Druckmaschine ist aus der DE 197 05 369 A1 bekannt. In dieser Ausführung sind die Druck- und Farbübertragungswalzen mit ihren ersten Enden einendig fliegend in je einem auf Führungsschienen gelagerten Lagerbock gelagert. Um während des Druckbetriebes Schwingungen der Walzen zu vermeiden, werden deren zweiten Enden mit Hilfe von Abfanglagern, die ihrerseits an Lagerböcken befestigt sind, gelagert. Die Abfanglager lassen sich von den Walzen lösen und gemeinsam mit den Lagerböcken verfahren. Auf diese Weise lassen sich die zweiten, freien Enden der Walzen, beispielsweise zum Zwecke des Sleevewechsels oder für andere Arbeiten, frei geben. Da die die Abfanglager tragenden Lagerböcke verfahren werden müssen, aber die Lagerböcke, in welchen die Walzen fliegend gelagert sind, festgehalten werden, ist es auch notwendig, die Rakelkammer, die beide Lagerböcke verbindet, oder die Rakelkammerhalterung von. dem das Abfanglager tragenden Lagerbock zu lösen. Bei den bekannten Druckmaschinen werden hierzu in der Druckposition des Lagerbockes Stifte in den das Abfanglager tragenden Lagerbock durchsetzende Bohrungen eingeschoben, die zusätzlich in die Rakelkammerhalterung der Rakelkammer eingebrachten Sacklochbohrungen fassen. Soll nun dieser Lagerbock verfahren werden, wird durch Herausnahme der Stifte die feste Verbindung zwischen Rakelkammerhalterung und Lagerbock getrennt. Der Nachteil einer solchen Vorrichtung ist, dass die Rakelkammerhalterung sich nunmehr auf dem Druckmaschinengestell abstützt, wobei sich die Rakelkammer aufgrund des für den Druckbetrieb erforderlichen Abstandes zwischen Rakelkammerhalterung und Druckmaschinengestell durchbiegt. Gleichzeitig kann es bei nicht waagerecht eingebauten Druckwerken auch zu Rutschbewegungen kommen, so dass Beschädigungen der Farbubertragungswalze nicht auszuschließen sind.Such a printing press is known from DE 197 05 369 A1. In this version, the printing and ink transfer rollers are mounted with their first ends overhung in a bearing block mounted on guide rails. In order to avoid vibrations of the rollers during the printing operation, their second ends are supported by means of intercepting bearings, which in turn are attached to bearing blocks. The interception bearing can be detached from the rollers and moved together with the bearing blocks. In this way, the second, free ends of the rollers can be released, for example for sleeving purposes or for other work. Since the bearing blocks supporting the intercepting bearings have to be moved, but the bearing blocks in which the rollers are overhung are held, it is also necessary to use the doctor chamber which connects the two bearing blocks or the doctor chamber holder from. to solve the bearing bracket supporting the interception bearing. In the known printing presses, for this purpose, pins are inserted into the bores which pass through the bearing block and which penetrate the bearing block and which additionally have blind holes drilled in the squeegee chamber holder of the squeegee chamber. If this bracket is to be moved, the fixed connection between the squeegee chamber holder and the bracket is separated by removing the pins. The disadvantage of such a device is that the doctor chamber holder is now supported on the printing press frame, the doctor chamber being due to the the printing operation bends the required distance between the squeegee chamber holder and the press frame. At the same time, if the printing units are not installed horizontally, slipping movements can occur, so that damage to the ink transfer roller cannot be ruled out.
Aufgabe der vorliegenden Erfindung ist es folglich, eine Anordnung in einem Druckwerk vorzuschlagen, bei der mögliche Verschiebungen und Verbiegungen der Rakelkammer nach dem Lösen der festen Verbindung zum Lagerbock vermieden werden.The object of the present invention is therefore to propose an arrangement in a printing unit, in which possible displacements and bending of the doctor chamber are avoided after loosening the fixed connection to the bearing block.
Die Aufgabe wird dadurch gelöst, dass sich die dem zweiten Lagerbock zugeordnete Rakelkammerhalterung permanent über Stützelemente am zweiten Lagerbock abstützt. Die Rakelkammerhalterung braucht also nicht mehr vollständig vom dem zweiten Lagerbock gelöst werden. Die Rakelkammer beziehungsweise die sie tragende Rakelkammerhalterung muss nicht mehr auf dem Druckmaschinengestell abgesetzt werden. Zudem entfällt die manuelle Arbeit, die mit dem Lösen beziehungsweise der Wiederherstellung der Verbindung zwischen der Rakelkammerhalterung und dem Lagerbock verbunden ist.The object is achieved in that the doctor blade chamber holder assigned to the second bearing block is permanently supported on the second bearing block via supporting elements. The doctor blade chamber holder therefore no longer needs to be completely detached from the second bearing block. The doctor chamber or the doctor chamber holder carrying it no longer has to be placed on the printing machine frame. In addition, the manual work associated with loosening or restoring the connection between the doctor blade chamber holder and the bearing block is eliminated.
Besonders vorteilhaft ist es dabei, wenn die Stützelemente zumindest Linearführung umfassen, welche derart an der Rakelkammerhalterung angebracht sind, dass der zweite Lagerbock relativ zur Rakelkammerhalterung verschiebbar ist. Auf diese Weise lässt sich der Lagerbock verschieben, ohne dass die Rakelkammer durch eine Hebe- oder Senkbewegung deformiert wird.It is particularly advantageous if the support elements comprise at least a linear guide, which are attached to the doctor chamber holder in such a way that the second bearing block can be displaced relative to the doctor chamber holder. In this way, the bearing block can be moved without the doctor chamber being deformed by a lifting or lowering movement.
Vorteilhafterweise bestehen die Stützelemente aus einer an der Rakelkammerhalterung befestigten Schiene und einem fest mit dem Lagerbock verbundenen Führungsschlitten. Auf diese Weise ist es möglich, den Lagerbock relativ zur Rakelkammerhalterung zu verschieben, um das freie Ende der Druckwalze frei zu geben, ohne die Rakelkammerhalterung vollständig vom Lagerbock trennen zu müssen. Soll der Lagerbock in die Freigabeposition gebracht werden, so wird in einer bevorzugten Ausführungsform die Rakelkammerhalterung in Druckwerksrahmen arretiert. Damit werden auch bei einem nicht waagerecht angeordneten Druckwerk ein Verbiegen der Rakelkammer infolge eines endseitigen Verrutschens verhindert und dadurch möglicherweise auftretende Beschädigungen der Oberfläche der Farbubertragungswalze vermieden.The support elements advantageously consist of a rail fastened to the squeegee chamber holder and a guide carriage which is fixedly connected to the bearing block. In this way it is possible to move the bearing block relative to the squeegee chamber holder in order to release the free end of the pressure roller without having to completely separate the squeegee chamber holder from the bearing block. If the bearing block is to be brought into the release position, then in a preferred embodiment the squeegee chamber holder is locked in the printing unit frame. This prevents bending of the doctor blade chamber as a result of slipping at the end even in the case of a printing unit which is not arranged horizontally, and damage to the surface of the ink transfer roller which may occur is thereby avoided.
11
Besonders vorteilhaft ist dabei, wenn die Rakelkammerhalterung wechselweise mit dem Lagerbock oder mit dem Druckwerksrahmen verbunden ist. Hierzu kann ein an der Rakelkammerhalterung verschieblich angebrachter Arretierbolzen vorgesehen sein, der in seiner einen Endlage die Rakelkammerhalterung fest mit dem Lagerbock verbindet und in seiner anderen Endlage in eine Aussparung des Druckwerkrahmens fasst.It is particularly advantageous if the doctor blade chamber holder is alternately connected to the bearing block or to the printing unit frame. For this purpose, a locking bolt can be slidably attached to the squeegee chamber holder, which in one end position firmly connects the squeegee chamber holder to the bearing block and in its other end position fits into a recess in the printing unit frame.
Um ein ungewolltes Lösen des Arretierbolzens aus den beschriebenen Endlagen zu vermeiden, ist es vorteilhaft, an der Rakelkammerhalterung ein federndes Druckstück vorzusehen. Die Kugel des federnden Druckstücks fasst dabei jeweils in eine in den Arretierbolzen eingebrachte Vertiefung.In order to avoid unwanted loosening of the locking bolt from the end positions described, it is advantageous to provide a resilient pressure piece on the squeegee chamber holder. The ball of the resilient pressure piece grips in each case in a recess made in the locking bolt.
Zur Gewährleistung einer festen Verbindung zwischen der Rakelkammerhalterung und dem Rasterwalzenbock ist vorteilhafterweise am Rasterwalzenbock eine Arretierplatte befestigt, die zwischen dem Arretierbolzen und einem Anschlag einklemmbar ist.In order to ensure a firm connection between the squeegee chamber holder and the anilox roller block, a locking plate is advantageously attached to the anilox roller block, which can be clamped between the locking bolt and a stop.
Um ein nach häufigerer Verschiebung des Arretierbolzens auftretendes Spiel zwischen Arretierplatte und Arretierbolzen zu verhindern, sind in einer besonders bevorzugten Ausführungsform beide Elemente an den einander zugewandten Flächen mit zueinander parallelen Schrägen versehen, so dass das Spiel durch eine Veränderung des Stellweges des Arretierbolzens eliminiert wird.In order to prevent a play between the locking plate and the locking pin that occurs after the locking pin has been moved more frequently, in a particularly preferred embodiment both elements are provided with mutually parallel bevels on the mutually facing surfaces, so that the play is eliminated by changing the adjustment path of the locking pin.
Soll die Rakelkammerhalterung am Druckwerksrahmen festgelegt werden, ist es vorteilhaft, hierzu eine am Druckwerksrahmen befestigte Aufnahme vorzusehen. Auf den Arretierbolzen wirken vorteilhafterweise Mittel zum Verschieben.If the squeegee chamber holder is to be fixed on the printing unit frame, it is advantageous to provide a receptacle attached to the printing unit frame. Means for moving advantageously act on the locking bolts.
In einer bevorzugten Ausführungsform umfassen die Mittel zum Verschieben des Arretierbolzens eine Antriebseinheit sowie Mittel zum Übertragen der Antriebskraft.In a preferred embodiment, the means for displacing the locking bolt comprise a drive unit and means for transmitting the drive force.
Als Antriebseinheit kann dabei eine Kolbenzylindereinheit vorgesehen werden.A piston-cylinder unit can be provided as the drive unit.
Vorteilhafterweise bestehen die Mittel zum. Übertragen der Antriebskraft aus einer auf dem Kolben der Kolbenzylindereinheit aufgebrachten Aufnahme, die in der Druckposition des Rasterwalzenbocks einen am Arretierbolzen befestigten Stift umgreift. Auf diese Weise ist es möglich, die Kolbenzylindereinheit am Rasterwalzenbock vorzusehen. Eine solche Anordnung bietet den Vorteil, dass Leitungen zum Antrieb der Kolbenzylindereinheit parallel zu weiteren am Rasterwalzenbock befindlichen, angetriebenen oder angesteuerten Vorrichtungen gelegt werden können.Advantageously, the means for. Transmission of the driving force from a receptacle mounted on the piston of the piston-cylinder unit, which engages around a pin attached to the locking bolt in the printing position of the anilox roller block. In this way it is possible to provide the piston-cylinder unit on the anilox roller block. Such an arrangement offers the advantage that lines for driving the piston-cylinder unit can be laid parallel to other, driven or controlled devices located on the anilox roller block.
Ein Ausführungsbeispiel der Erfindung wird anhand der Figuren näher erläutert. Die einzelnen Figuren zeigen:An embodiment of the invention is explained in more detail with reference to the figures. The individual figures show:
Fig. 1 Seitenansicht eines Druckwerks einer Flexodruckmaschine bekannter Art Fig. 2 Seitenansicht eines Ausschnitts eines Druckwerks der erfindungsgemäßen Art, wobei sich der Rasterwal∑enbock inFig. 1 side view of a printing unit of a flexographic printing press of known type Fig. 2 side view of a section of a printing unit of the type according to the invention, the anilox roller block in
Freigabeposition befindet. Fig. 3 Ansicht des Farbwerks gemäß Fig. 2. Fig. 4 Ansicht des Farbwerks gemäß Fig. 3 Fig. 5 Seitenansicht eines Ausschnitts eines Druckwerks der erfindungsgemäßen Art, wobei sich der Rasterwalzenbock inRelease position is. 3 view of the inking unit according to FIG. 2. FIG. 4 view of the inking unit according to FIG. 3 FIG. 5 side view of a section of a printing unit of the type according to the invention, the anilox roller block being in
Druckposition befindet Fig. 6 Ansicht des Farbwerks gemäß Fig. 5 Fig. 7 Ansicht des Farbwerks gemäß Fig. 6 Fig. 1 zeigt eine Flexodruckmaschine bekannter Art in Druckposition. Ein Gegendruckzylinder 1, auf dem die zu bedruckende und nicht näher dargestellte Materialbahn geführt wird, ist in einem nicht dargestellten Maschinengestell gelagert. Fest mit dem Maschinengestell verbunden ist ein Druckwerksrahmen 2, der Bestandteil des Druckwerks 3 ist. Der hintere Druckwerksrahmen, der auf der rückwärtigen Seite des Gegendruckzylinders am Maschinengestell angebracht ist, ist nicht sichtbar. An einer Flexodruckmaschine können mehrere derartige Farbwerke vorgesehen sein, die dann über den Umfang des Gegendruckzylinders verteilt sind. Im Druckbetrieb ist die Druckwalze 29 in einem Abfanglager 7 gelagert. Das Abfanglager stützt sich auf den Druckwalzenlagerbock, der sich über den Schlitten 13 auf der Führungsschiene 12 abstützt und über den Motor 14 und die Spindel 15 entlang des Doppelpfeils B hin- und her bewegt werden kann. Die Führungsschiene 12 ist fest mit dem Druckwerksrahmen verbunden. Die Rasterwalze 27 ist über ein Abfanglager 6 in dem Rasterwalzenlagerbock 4 gelagert. Über den Motor 10 und der Spindel 11 kann der Schlitten 9, der auf der an dem Druckwerksrahmen 2 befestigten Schiene 8 läuft und an dem der Rasterwalzenlagerbock 4 gehaltert ist, entlang des Doppelpfeils A verschoben werden. Ein Farbkammerrakel 31 ist auf eine nicht näher beschriebene Weise an der Rakelkammerhalterung 16 befestigt. Diese Rakelkammerhalterung 16 ist über zwei Bolzen 17, die durch Bohrungen in dem Rasterwalzenlagerbock 4 hindurchgreifen und in zwei Bohrungen der Rakelkammerhalterung fassen, verdreh- und bewegungsgesichert mit dem Rasterwalzenbock 4 verbunden.6 is a view of the inking unit according to FIG. 5. FIG. 7 is a view of the inking unit according to FIG. 6 Fig. 1 shows a flexographic printing machine of known type in the printing position. An impression cylinder 1, on which the material web to be printed and not shown is guided, is mounted in a machine frame, not shown. A printing unit frame 2, which is part of the printing unit 3, is fixedly connected to the machine frame. The rear printing unit frame, which is attached to the back of the impression cylinder on the machine frame, is not visible. A plurality of such inking units can be provided on a flexographic printing press, which are then distributed over the circumference of the impression cylinder. In the printing operation, the printing roller 29 is mounted in an interception bearing 7. The interception bearing is based on the pressure roller bearing block, which is supported on the slide 13 on the guide rail 12 and can be moved back and forth along the double arrow B via the motor 14 and the spindle 15. The guide rail 12 is firmly connected to the printing unit frame. The anilox roller 27 is mounted in the anilox roller bearing block 4 via an interception bearing 6. Via the motor 10 and the spindle 11, the slide 9, which runs on the rail 8 fastened to the printing unit frame 2 and on which the anilox roller bearing block 4 is held, can be moved along the double arrow A. An ink chamber doctor blade 31 is attached to the doctor blade chamber holder 16 in a manner not described in detail. This squeegee chamber holder 16 is connected to the anilox roller block 4 in a manner secured against rotation and movement, by means of two bolts 17 which reach through holes in the anilox roller bearing block 4 and grip in two holes of the squeegee chamber holder.
Um nun beispielsweise den Rasterwalzensleeve vom Zylinderkern der Rasterwalze entfernen zu können, wird zunächst der Rasterwalzenbock von der Druckwalze abgerückt (Druck-ab-Position). Anschließend muss nach dem Lösen des Abfanglagers 6 von der Rasterwalze 27 der Rasterwalzenbock 4 relativ zur Rasterwalze 27 verschoben werden. Hierzu ist die Rakelkammerhalterung 16 vom Rasterwalzenlagerbock 4 durch Herausziehen der beiden Bolzen 17 zu trennen. Nach dem Trennen kann der Rasterwal∑enbock 4 in die sog. Freigabeposition verschoben werden. Die Figuren 2 bis 4 zeigen nun einen Ausschnitt des erfindungsgemäßen Druckwerks. Auf die Darstellung des Rasterwalzenlagerbocks 4 mit dem Abfanglager sowie den Führungselementen wurde in Figur 2 der Übersichtlichkeit wegen verzichtet. Die Rasterwalze befindet sich in der Druck- ab-Position und der Lagerbock 4 befindet sich in der Freigabeposition, die einen freien Zugriff auf die Rasterwalze ermöglicht. An der Rakelkammerhalterung 16 ist eine Führungsschiene 18 befestigt, die von einem in Fig. 3 sichtbaren Führungswagen 28 umfasst wird. Dieser Führungswagen 28 ist wiederum am Rasterwalzenlagerbock 4 befestigt. Der Arretierbolzen 19 ist in den Führungen 21, 22 entlang des Pfeils C verschiebbar. In dem hier dargestellten Betriebszustand ist der Arretierbol∑en 19 über den Arretierbol∑enfuß 25 in der Arretierbolzenaufnahme 26 festgelegt. Um ein ungewolltes Verschieben des Arretierbolzens 19 zu verhindern, ist an der Rakelkammerhalterung 16 ein federndes Druckstück 37 angebracht. Die Kugel des federnden Druckstücks 37 wirkt dabei auf eine Ringnut 40, die an entsprechender Position in den Arretierbolzen 19 eingebracht ist. Das federnde Druckstück ist der Übersichtlichkeit halber in den Fig. 3 und 4 nicht dargestellt. Die Arretierbolzenaufnahme ist fest mit dem Druckwerksrahmen 2 verbunden. An dem Rasterwal∑enlagerbock 4 ist eine Arretierplatte 30 befestigt, die einen Vorsprung 39 aufweist. Der Vorsprung 39 ist einseitig abgeschrägt. Der Vorsprung 39 und die Schräge sind dabei so dimensioniert, dass der Vorsprung 39 zwischen dem Arretierbolzenkopf 24 und dem Anschlag 23 arretiert werden kann. Unterhalb der Arretierplatte 30 ist eine Kolbenzylindereinheit 32 befestigt, deren Kolben 33 nach unten heraus ragt. An dem Kolben sind eine Aufnahme 34 sowie beidseitig je zwei Rollen 35 befestigt. Die Rollen 35 laufen in Rollenführungen 36, 38, von denen nur die Rollenführung 36 dargestellt ist.In order, for example, to be able to remove the anilox roller sleeve from the cylinder core of the anilox roller, the anilox roller block is first moved away from the printing roller (print-down position). Then, after the intercepting bearing 6 has been released from the anilox roller 27, the anilox roller block 4 must be displaced relative to the anilox roller 27. For this purpose, the doctor blade chamber holder 16 is to be separated from the anilox roller bearing block 4 by pulling out the two bolts 17. After separation, the anilox roller block 4 can be moved into the so-called release position. Figures 2 to 4 now show a section of the printing unit according to the invention. The illustration of the anilox roller bearing block 4 with the interception bearing and the guide elements has been omitted in FIG. 2 for the sake of clarity. The anilox roller is in the print-off position and the bearing block 4 is in the release position, which enables free access to the anilox roller. A guide rail 18 is fastened to the squeegee chamber holder 16 and is enclosed by a guide carriage 28 visible in FIG. 3. This carriage 28 is in turn attached to the anilox roller bearing 4. The locking bolt 19 is displaceable in the guides 21, 22 along the arrow C. In the operating state shown here, the locking bolt 19 is fixed in the locking bolt receptacle 26 via the locking bolt base 25. In order to prevent an unintentional displacement of the locking bolt 19, a resilient pressure piece 37 is attached to the squeegee chamber holder 16. The ball of the resilient pressure piece 37 acts on an annular groove 40 which is introduced into the locking bolt 19 at a corresponding position. The resilient pressure piece is not shown in FIGS. 3 and 4 for the sake of clarity. The locking pin receptacle is firmly connected to the printing unit frame 2. A locking plate 30 is fastened to the anilox roller bearing block 4 and has a projection 39. The projection 39 is chamfered on one side. The projection 39 and the slope are dimensioned so that the projection 39 can be locked between the locking bolt head 24 and the stop 23. A piston-cylinder unit 32 is fastened below the locking plate 30, the piston 33 of which protrudes downward. A receptacle 34 and two rollers 35 are attached to the piston on both sides. The rollers 35 run in roller guides 36, 38, of which only the roller guide 36 is shown.
Die Figuren 5 bis 7 zeigen den selben Ausschnitt des erfindungsgemäßen Druckwerks, wobei sich der Rasterwalzenbock 4 in der Druckposition befindet. Um diese Position zu erreichen, wird der Rasterwalzenbock 4 in Richtung zur Rasterwalze 27 verschoben, so dass das Abfanglager 6 das freie Ende der Rasterwalze umfassen kann. In dieser Position des Rasterwalzenbocks umfasst auch die am Kolben 33 angebrachte Aufnahme 34 den im Arretierboizen 19 befestigten Stift 20. Durch die Betätigung der Kolbenzylindereinheit 32 kann der Arretierbolzen nach oben verschoben werden und klemmt dabei den Vorsprung 39 der Arretierplatte zwischen dem Anschlag 23 und dem Arretierbolzenkopf 24 ein. Eine ständige Druckbeaufschlagung durch die Kolbenzylindereinheit 32 stellt aufgrund der Anschrägungen des Vorsprungs 39 und des Zylinderkopfes 38 eine spielfreie Klemmung des Vorsprungs 39 sicher. Somit wird eine reproduzierbar exakte Position der Rakelkammerhalterung relativ zum Rasterwalzenbock ermöglicht. Sollte jedoch in einer fehlerhaften Betriebssituation die Druckbeaufschlagung durch die Kolbenzylindereinheit 32 ausfallen, so kann der Arretierbolzen 19 in eine Position rutschen, in der, wie in Fig. 7 dargestellt, die Kugel des federnden Druckstücks 37 auf die untere Ringnut 40 wirkt, so dass eine weitergehende Bewegung des Arretierbolzens 19 verhindert wird. Auch bei fehlender Druckbeaufschlagung ist auf diese Weise eine ausreichende Klemmung des Vorsprungs 39 sichergestellt. Figures 5 to 7 show the same section of the printing unit according to the invention, wherein the anilox roller block 4 is in the printing position. In order to achieve this position, the anilox roller block 4 is displaced in the direction of the anilox roller 27, so that the interception bearing 6 can encompass the free end of the anilox roller. In this position of the anilox roller block, the receptacle 34 attached to the piston 33 also includes the pin 20 fastened in the locking pin 19. The piston cylinder unit 32 can be actuated by actuating the piston cylinder unit 32 Locking bolts are moved upward and clamps the projection 39 of the locking plate between the stop 23 and the locking bolt head 24. A constant pressurization by the piston-cylinder unit 32 ensures that the projection 39 is clamped without play due to the bevels of the projection 39 and the cylinder head 38. This enables a reproducibly exact position of the doctor blade chamber holder relative to the anilox roller block. However, should the pressure application by the piston-cylinder unit 32 fail in a faulty operating situation, the locking bolt 19 can slide into a position in which, as shown in FIG. 7, the ball of the resilient pressure piece 37 acts on the lower annular groove 40, so that a further movement of the locking bolt 19 is prevented. A sufficient clamping of the projection 39 is ensured in this way even when there is no pressure applied.

Claims

Patentansprüche claims
Druckwerk (3) einer Druckmaschine, vorzugsweise Rotationsdruckmaschine,Printing unit (3) of a printing press, preferably a rotary printing press,
• mit mindestens einer Farbubertragungswalze (27, 29),With at least one ink transfer roller (27, 29),
• wobei die Farbubertragungswalze (27, 29) mit ihrem ersten Ende in einem ersten Lagerbock drehbar gelagert ist,Wherein the ink transfer roller (27, 29) is rotatably supported with its first end in a first bearing block,
• wobei die Farbubertragungswalze (27, 29) mit ihrem zweiten Ende in einem mit einem zweiten Lagerbock (4, 5) verbundenen Abfanglager (7, 9) drehbar gelagert ist, wobei das Abfanglager (7, 9) von der Farbubertragungswalze (27, 29) lösbar und der zweite Lagerbock (4) relativ zur Farbubertragungswalze (27, 29) und relativ zum ersten Lagerbock verschiebbar ist, so dass das zweite Ende der Farbubertragungswalze (27, 29) frei zugänglich ist, und o wobei jedem Lagerbock (4, 5) eine Rakelkammerhalterung (16) zugeordnet ist, welche (16) mindestens eine Farbkammerrakel (31) tragen, die (31) an die Farbubertragungswalze (27, 29) anstellbar ist,• wherein the ink transfer roller (27, 29) is rotatably mounted with its second end in an interception bearing (7, 9) connected to a second bearing block (4, 5), the interception bearing (7, 9) from the ink transfer roller (27, 29 ) releasable and the second bearing block (4) is displaceable relative to the ink transfer roller (27, 29) and relative to the first bearing block, so that the second end of the ink transfer roller (27, 29) is freely accessible, and o each bearing block (4, 5 ) a squeegee chamber holder (16) is assigned which (16) carries at least one ink chamber squeegee (31) which (31) can be set against the ink transfer roller (27, 29),
• wobei die Rakelkammerhalterungen (16) bei der Verschiebung des zweiten Lagerbockes (4, 5) relativ zum ersten Lagerbock ruhen dadurch gekennzeichnet, dass sich die dem zweiten Lagerbock (4, 5) zugeordnete Rakelkammerhalterung (16) permanent über Stützelemente (18, 28) am zweiten Lagerbock (4, 5) abstützt.• wherein the doctor blade chamber holders (16) rest when the second bearing block (4, 5) is displaced relative to the first bearing block, characterized in that the doctor chamber holder (16) assigned to the second bearing block (4, 5) is permanently supported on the second bearing block (4, 5) via supporting elements (18, 28).
2. Druckwerk nach Anspruch 1 dadurch gekennzeichnet, dass die Stützelemente zumindest Linearführung (18) umfassen, welche derart an der Rakelkammerhalterung (16) angebracht sind, dass der zweite Lagerbock (4, 5) relativ zur Rakelkammerhalterung (16) verschiebbar ist.2. Printing unit according to claim 1, characterized in that the support elements comprise at least linear guide (18) which are attached to the doctor chamber holder (16) such that the second bearing block (4, 5) is displaceable relative to the doctor chamber holder (16).
3. Druckwerk nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass3. Printing unit according to one of the preceding claims, characterized in that
- die Stüt∑elemente mindestens eine an der Rakelkammerhalterung (16) befestigte Schiene (18) und mindestens einen die Schiene umgreifenden, am Lagerbock (4) befestigten Führungswagen (28) umfassen.- The support elements comprise at least one rail (18) fastened to the squeegee chamber holder (16) and at least one guide carriage (28) encompassing the rail and fastened to the bearing block (4).
4. Druckwerk nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass die Rakelkammerhalterung (16) in jeder Position des Lagerbocks (4), die nicht die Druckposition ist, mit dem Druckwerksrahmen (2) verbunden ist.4. Printing unit according to one of the preceding claims, characterized in that the doctor chamber holder (16) is connected to the printing unit frame (2) in every position of the bearing block (4) which is not the printing position.
5. Druckwerk nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass dass an der Rakelkammerhalterung (16) ein Arretierbolzen (19) längs seiner Achse verschieblich gelagert ist, der in seiner einen Endlage mit dem Lagerbock (4) und in seiner anderen Endlage mit dem Druckwerksrahmen (2) verbindbar ist.5. Printing unit according to one of the preceding claims, characterized in that on the squeegee chamber holder (16) a locking bolt (19) is slidably mounted along its axis, which in its one end position with the bearing block (4) and in its other end position with the printing unit frame (2) is connectable.
6. Druckwerk nach Anspruch 5 dadurch gekennzeichnet, dass der Arretierbolzen (19) in jeder dieser Endlagen mit Hilfe einer Kugel eines federnden Druckstücks, welches an der Rakelkammerhalterung (16) angebracht ist, festlegbar ist, wobei die Kugel auf eine der in den Arretierbolzenfuß (19) eingebrachte Vertiefung (40) wirkt.6. Printing unit according to claim 5, characterized in that the locking bolt (19) can be fixed in each of these end positions with the aid of a ball of a resilient pressure piece which is attached to the squeegee chamber holder (16), the ball acting on one of the recesses (40) made in the locking bolt foot (19).
7. Druckwerk nach Anspruch 5 oder 6 dadurch gekennzeichnet, dass in der Druckposition ein Vorsprung (39) einer am Lagerbock (4) befestigten Arretierplatte (30) zwischen dem Arretierbolzen (19) und einem Anschlag (23) einklemmbar ist.7. Printing unit according to claim 5 or 6, characterized in that in the printing position a projection (39) of a bearing block (4) attached locking plate (30) between the locking bolt (19) and a stop (23) can be clamped.
8. Druckwerk nach einem der Ansprüche 5 bis 7 dadurch gekennzeichnet, dass der Vorsprung (39) und der Arretierbolzen (19) an den einander zugewandten Seiten parallel verlaufende Schrägen aufweisen.8. Printing unit according to one of claims 5 to 7, characterized in that the projection (39) and the locking bolt (19) have parallel slopes on the mutually facing sides.
9. Druckwerk nach einem der Ansprüche 5 bis 8 dadurch gekennzeichnet, dass zur Verbindung der Rakelkammerhalterung (16) mit dem Druckwerkrahmen (2) der Arretierbolzen (19) in einer am Druckwerkrahmen (2) befestigten Aufnahme (26) festlegbar ist.9. Printing unit according to one of claims 5 to 8, characterized in that for the connection of the squeegee chamber holder (16) to the printing unit frame (2) the locking bolt (19) can be fixed in a receptacle (26) attached to the printing unit frame (2).
10. Druckwerk nach einem der Ansprüche 5 bis 9 gekennzeichnet dadurch, dass auf den Arretierbolzen (19) Mittel zum Verschieben (32, 33, 34, 20) wirken.10. Printing unit according to one of claims 5 to 9, characterized in that means for moving (32, 33, 34, 20) act on the locking bolt (19).
11. Druckwerk nach Anspruch 10 dadurch gekennzeichnet, dass die Mittel zum Verschieben eine Antriebseinheit (32) und Mittel zum Übertragen der Antriebskraft (33, 34, 20) umfassen. 11. Printing unit according to claim 10, characterized in that the means for moving comprise a drive unit (32) and means for transmitting the drive force (33, 34, 20).
12. Druckwerk nach Anspruch 11 dadurch gekennzeichnet, dass der Antrieb aus einer Kolbenzylindereinheit (32) besteht.12. Printing unit according to claim 11, characterized in that the drive consists of a piston-cylinder unit (32).
13. Druckwerk nach Anspruch 11 oder 12 dadurch gekennzeichnet, dass die Mittel zum Übertragen der Antriebskraft eine Aufnahme (34) umfassen, die in der Druckposition des Lagerbocks (4) einen am Arretierbolzen (19) befestigten Stift (20) umgreift. 13. Printing unit according to claim 11 or 12, characterized in that the means for transmitting the driving force comprise a receptacle (34) which, in the printing position of the bearing block (4), engages around a pin (20) fastened on the locking bolt (19).
EP04701954A 2003-01-31 2004-01-14 Printing group of a printing press Expired - Lifetime EP1592556B1 (en)

Applications Claiming Priority (3)

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DE10304109 2003-01-31
DE10304109A DE10304109A1 (en) 2003-01-31 2003-01-31 Printing unit of a printing press
PCT/EP2004/000413 WO2004067279A1 (en) 2003-01-31 2004-01-14 Printing group of a printing press

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EP1592556A1 true EP1592556A1 (en) 2005-11-09
EP1592556B1 EP1592556B1 (en) 2008-01-02

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EP (1) EP1592556B1 (en)
AT (1) ATE382481T1 (en)
DE (2) DE10304109A1 (en)
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DE10223666B4 (en) * 2002-05-28 2006-06-14 Windmöller & Hölscher Kg Inking system for flexo printing machines
ITVR20040141A1 (en) * 2004-09-10 2004-12-10 Valentini Maria Grazia SUPPORT AND RELEASE DEVICE FOR A HUB OF A CYLINDER FOR PRINTING MACHINE.
DE102006003013B4 (en) * 2005-06-17 2011-03-03 Koenig & Bauer Aktiengesellschaft flexographic printing
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BR112015022200A2 (en) 2013-03-13 2017-07-18 Probity Eng Llc ink source apparatus, flexo printing press system and method for adjusting printing characteristics in flexo printing
JP6736090B2 (en) * 2017-07-06 2020-08-05 株式会社ミヤコシ Ink supply device for printing machine
DE102019100307A1 (en) * 2019-01-08 2020-07-09 Koenig & Bauer Ag Application unit with positioning device
DE102019100310A1 (en) * 2019-01-08 2020-07-09 Koenig & Bauer Ag Application unit with positioning device and storage device
DE102019100309A1 (en) * 2019-01-08 2020-07-09 Koenig & Bauer Ag Application unit with positioning device and storage device

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DE10304109A1 (en) 2004-08-19
EP1592556B1 (en) 2008-01-02
US20060150843A1 (en) 2006-07-13
WO2004067279A1 (en) 2004-08-12
ATE382481T1 (en) 2008-01-15
ES2295814T3 (en) 2008-04-16
DE502004005821D1 (en) 2008-02-14
US7287472B2 (en) 2007-10-30

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