EP1732760B1 - Printing mechanism of a printing machine having a pressure roller - Google Patents

Printing mechanism of a printing machine having a pressure roller Download PDF

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Publication number
EP1732760B1
EP1732760B1 EP05715859A EP05715859A EP1732760B1 EP 1732760 B1 EP1732760 B1 EP 1732760B1 EP 05715859 A EP05715859 A EP 05715859A EP 05715859 A EP05715859 A EP 05715859A EP 1732760 B1 EP1732760 B1 EP 1732760B1
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EP
European Patent Office
Prior art keywords
impression roller
shaft
printing unit
roller shaft
impression
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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.)
Not-in-force
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EP05715859A
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German (de)
French (fr)
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EP1732760A1 (en
Inventor
Herbert Lübke
Volker Schröder
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP1732760A1 publication Critical patent/EP1732760A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • 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 unit of a printing press with at least one impression roller according to the preamble of claim 1.
  • Such printing units are known. Such printing units are often designed so that the first end of a pressure roller can be exposed, so that a pressure roller sleeve can be pulled over this exposed end in the axial direction of the pressure roller mandrel. Subsequently, a new pressure roller sleeve, which carries for example a new print motif can be pushed over this end.
  • the patents DE 28 21 36 and US 1,329,325 show such printing works. In these patents, however, nothing is said about the handling of impression rollers.
  • Press rollers in printing units of printing machines, especially of gravure printing machines, are subject to wear and other influences and must therefore be interchangeable.
  • the impression rollers often consist of a stamping shaft on which a Presseurmantel can be pushed and pulled off again. In this way, the impression shaft can continue to be used, while only the Presseurmantel is changed.
  • the DE 40 08 501 A1 shows a printing unit that allows this.
  • this printing unit is the impression shaft stored in printing operation with their shaft journals in two folding bearings.
  • the first shaft journal of the impression roller is exposed by first below the second shaft journal is equipped with a horizontally extending support or slide rail equipped holding device. In this position, the support rail is fixed.
  • a supporting shell which simultaneously defines a vertical pivot axis acts from above.
  • the printing unit described has the disadvantage that employed before changing the presser tower shell at both ends of the impression roller roller support devices or the folding bearings must be removed in order to pivot the impression roller can. Therefore, the change of Pressurmantels is cumbersome and therefore time consuming.
  • Object of the present invention is therefore to propose a generic printing unit, in which the change of the Presseurmantels is less cumbersome.
  • the means for holding the impression roller in an exchange position are configured to hold the impression roller in a position in which the impression roller shaft is inclined against gravity.
  • the force of gravity exerts a torque on the impression roller, so that the impression roller during the exposure of a shaft journal or immediately thereafter with the exposed shaft journal in the direction of the force attracting him, so gravity moves.
  • This is, for example, a vertical lowering movement, which, however, may be superposed with a pivoting movement.
  • the means for holding are arranged so that they are not in contact with the impression shaft during the printing operation. However, they counteract the torque generated by gravity when they come into contact with the impression shaft.
  • the means for holding comprise a stop limiting the angle of inclination.
  • the chosen arrangement of the means for holding determines the angle of inclination that the impression roller shaft now occupies with respect to its previous position, for example the position in the printing operation.
  • the means for holding need not, as is the case in the prior art, first be brought into contact with the impression shaft before the first shaft journal is exposed. In the inclined position can now easily Presseurmantel of be deducted from the impeller shaft, since this process is facilitated due to the gravitational force on the Presseurmantel.
  • the stop can be made movable in order to choose the Absenkumble free. With the aid of a movable stopper, even the lowering and lifting movement can be carried out or supported. In a preferred embodiment of the invention, however, the stop is attached to the printing unit frame.
  • the means for holding the impression roller are adapted to hold the impression roller in at least two different positions, in which the impression roller shaft is inclined against gravity. In this way, the impression roller shaft can be brought into a different position after removal, in which the postponement of a new Presseurmantels is facilitated.
  • a lesser angle of inclination is set than for peeling in order not to have to work with too great a force against gravity.
  • the angle of inclination against gravity in the first position has a different sign than in the second position.
  • This measure facilitates in a particularly simple way changing the Presseurmantels, since now the action of gravity can be exploited on the Presseurmantel to its change.
  • the means for holding comprise a bearing on which the impression roller shaft is articulated or mounted with its second shaft journal.
  • the bearing is constructed so that with him the inclination of the impression shaft is vorappelbar.
  • the bearing may be convexly formed on its outer circumference and enclosed by a concave shaped bushing.
  • This socket is connected to the printing unit frame in a manner described below.
  • the means for holding the impression roller in an exchange position on the impression shaft between the second shaft journal and the working position of the Presseurmantels attack is to be understood as meaning the axial position which the press mantle occupies during the printing operation.
  • the end of the mover shaft is to be understood as a shaft journal.
  • the impression roller shaft can be acted upon by means of a force which effects the inclination of the impression roller shaft.
  • the lifting and lowering device can be brought into engagement with a bearing, which surrounds the impression shaft in the region of the first shaft journal. With this lifting and lowering device, the shaft journal and thus the impression shaft can be moved.
  • the raised position is at the same time the operating position in which the impression roller can be brought into contact with the printing material and employed on the forme cylinder.
  • the lifting and lowering takes place relative to the component of the printing unit to which the lifting and lowering device is attached. This may be the printing unit frame or another component which is connected to the printing frame, be.
  • the holding device with which the second shaft journal of the impression roller shaft is held, and the lifting and lowering device, with which the first shaft journal can be raised and lowered, are each connected to a support plate, the so-called pressure former plates. which are displaceable relative to the printing unit frame.
  • the holding device then consists for example of a attached to the one Presseurplatte support bracket which carries the socket, in which in turn is the camp. But the socket can also be attached directly to the Presseurplatte. Due to the displaceability of the Presseurplatten relative to the printing unit frame of the impression roller can be raised so that it is no longer in contact with the substrate. This is a prerequisite to be able to change the Presseurmantel under continuous operation, so when the substrate is passed through the printing unit on the guide rollers.
  • Fig. 1 shows a printing unit 1 according to the invention, from the printing unit frame, the front side frame is not shown for reasons of clarity, so that the rear side frame 2 is visible.
  • the guide rollers 3, 4, 5 are rotatably mounted in the printing unit frame.
  • the substrate 6 is passed through the printing unit 1.
  • the substrate 6 is additionally guided over the impression roller 7.
  • the impression roller 7 is employed against the forme cylinder 8.
  • This form cylinder 8 takes ink from a color reservoir
  • the impression roller 7 is vertically displaceable relative to the printing unit frame.
  • the impression roller 7 with Presseurplatten 9 of which only the front is visible connected.
  • these Presseurplatten 9 slides 10 are mounted, which include attached to the side frames 2 rails 11, so that a linear mobility is ensured.
  • the displacement itself is effected by a lifting drive 13, which acts on the pull rod 12.
  • the lifting drive 13 facing away from the end of the tie rod 12 is connected to the Presseurplatte 9.
  • the linear actuator can be for example a known per se spindle drive or a piston-cylinder unit: Also, other forms of linear actuators can be used at this point.
  • a lifting and lowering device 14 In the printing operation of the impression roller 7 is held immobile by a lifting and lowering device 14 relative to the Presseurplatte 9.
  • the operation of this lifting and lowering device 14 is effected by a piston-cylinder unit 15 which is rotatably mounted on the Presseurplatte 9.
  • the piston-cylinder unit 15 acts on the first leg of a U-shaped lever 16, which is mounted rotatably in the center approximately on the impression roller plate 9.
  • a connecting piece 17 is articulated.
  • the other end of the connecting piece 17 is rotatably connected to a linear lever 18.
  • This linear lever 18 is rotatably mounted approximately centrally on the Presseurplatte 9.
  • the free end 19 of the linear lever 8 is angled so that it can take under the bearing 21, which is applied to the impression roller shaft 20, and can hold the impression roller 7 so immovable relative to the Presseurplatte 9.
  • the bearing 21 is clamped between the free end 19 of the linear lever 18 and a recess 23 of the Presseurplatte 9.
  • the impression roller plates 9 are first raised via the tie rods 12 and the lifting drives 13 into a predetermined change position so that the impression roller 7 is no longer in contact with the printing material 6. Subsequently, the piston-cylinder unit 15 is actuated. About the lever mechanism, the free end 19 of the linear lever 18 is pivoted from the bearing 21 downwards, so that in the Fig. 1 visible end of impression roller 7 slowly lowers. The free end 19 is additionally provided with a hook 29, which prevents the exposed end of the impression roller 7 from slipping down along the free end 19 and thus descends uncontrolled or obliquely. A substantially vertical lowering is ensured in this way.
  • the Fig. 3 shows the view III-III of Fig. 2 , of the printing unit 1.
  • both side frames 2 and both Presseurplatten 9 are shown or visible.
  • the representation of the guide rollers 3, 4, 5 and the printing material 6 was omitted.
  • Each Presseurplatte 9 is assigned its own pull rod 12 and its own lifting drive 13, but both Presseurplatten 9 are connected for the purpose of synchronization with a crossbar 24. As a result, a uniform pressure of the impression roller 7 is ensured in the direction of the forme cylinder 8 in the printing operation.
  • the free end 19 of the linear lever 18 does not include the bearing 21 of the impression roller 7, so that this first, left side in this Fig., End of the impression roller 7 is slightly lowered.
  • the bearing 25, in which the second end of the impression roller shaft 20 is mounted tiltably equipped.
  • the bearing 25 is surrounded by a bush 28, wherein the bush 28 is connected to the Presseurplatte 9.
  • the impeller shaft 20 penetrates with its shaft journal 26 not only the bearing 25, but also the Presseurplatte 9 and the side frame 2.
  • a stop 27 is attached. On this stop 27, the shaft journal 26 is supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Pens And Brushes (AREA)
  • Printing Methods (AREA)
  • Impact Printers (AREA)

Abstract

The invention relates to the printing mechanism (1) of a printing machine having a pressure roller (7). This pressure roller has a pressure roller jacket (22) that, during printing, is fastened to a pressure roller shaft (20) with two shaft journals (26) situated at the ends. In the printing mechanism (1), at least one of the two shaft journals (26) of the pressure roller shaft (20) can be exposed in order to exchange the pressure roller jacket (22), and the printing mechanism (1) has means for holding (25, 27, 28) the at least one pressure roller (7) in at least one exchanging position of the pressure roller jacket (22). The means for holding (25, 27, 28) the pressure roller (7) in an exchanging position are designed so that they hold the pressure roller (7) in a position in which the pressure roller shaft (20) is inclined against the force of gravity.

Description

Die Erfindung betrifft ein Druckwerk einer Druckmaschine mit mindestens einem Presseur gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a printing unit of a printing press with at least one impression roller according to the preamble of claim 1.

Derartige Druckwerke sind bekannt. Solche Druckwerke sind häufig so ausgelegt, dass das erste Ende einer Druckwalze freigelegt werden kann, so dass eine Druckwalzenhülse über dieses freigelegte Ende in axialer Richtung vom Druckwalzendorn abgezogen werden kann. Anschließend kann eine neue Druckwalzenhülse, die beispielsweise ein neues Druckmotiv trägt über dieses Ende aufgeschoben werden. Die Patentschriften DE 28 21 36 und US 1 329 325 zeigen solche Druckwerke. In diesen Patentschriften ist jedoch nichts über die Handhabung von Presseuren ausgesagt.Such printing units are known. Such printing units are often designed so that the first end of a pressure roller can be exposed, so that a pressure roller sleeve can be pulled over this exposed end in the axial direction of the pressure roller mandrel. Subsequently, a new pressure roller sleeve, which carries for example a new print motif can be pushed over this end. The patents DE 28 21 36 and US 1,329,325 show such printing works. In these patents, however, nothing is said about the handling of impression rollers.

Presseure in Druckwerken von Druckmaschinen, insbesondere von Tiefdruckmaschinen, unterliegen Verschleiß und weiteren Einflüssen und müssen daher auswechselbar sein. Um den Wechsel zu vereinfachen, bestehen die Presseure häufig aus einer Presseurwelle, auf die ein Presseurmantel aufgeschoben und auch wieder abgezogen werden kann. Auf diese Weise kann die Presseurwelle weiter verwendet werden, während nur der Presseurmantel gewechselt wird.Press rollers in printing units of printing machines, especially of gravure printing machines, are subject to wear and other influences and must therefore be interchangeable. In order to simplify the change, the impression rollers often consist of a stamping shaft on which a Presseurmantel can be pushed and pulled off again. In this way, the impression shaft can continue to be used, while only the Presseurmantel is changed.

Um den Wechsel zu ermöglichen, ist es notwendig, einen ersten Wellenzapfen der Presseurwelle frei zu legen, während die Presseurwelle ansonsten von Mitteln zum Halten im Druckwerk gehalten wird. Die DE 40 08 501 A1 zeigt ein Druckwerk, das dieses ermöglicht. In diesem Druckwerk ist die Presseurwelle im Druckbetrieb mit ihren Wellenzapfen in zwei Klapplagern gelagert. Zum Wechseln des Presseurmantels wird der erste Wellenzapfen der Presseurwalze freigelegt, indem zunächst unterhalb des zweiten Wellenzapfens eine mit einer horizontal verlaufenden Stütz- oder Gleitschiene ausgestattete Haltevorrichtung angestellt wird. In dieser Position wird die Stützschiene festgelegt. Auf den über das die Presseurwelle lagernde Klapplager hinaus verlängerten Abschnitt des zweiten Wellenzapfens wirkt zudem von oben eine Stützschale, die gleichzeitig eine vertikale Schwenkachse definiert. Nach dem Entfernen der Klapplager von beiden Wellenzapfen kann der Presseur, nunmehr lediglich von der Stützschiene und der Stützschale gehalten, um die beschriebene vertikale Schwenkachse in horizontaler Richtung verschwenkt werden, so dass der Presseurmantel in axialer Richtung von der Presseurwelle abgezogen werden kann.In order to enable the change, it is necessary to expose a first shaft journal of the impression shaft, while the impression shaft is otherwise held by means for holding in the printing unit. The DE 40 08 501 A1 shows a printing unit that allows this. In this printing unit is the impression shaft stored in printing operation with their shaft journals in two folding bearings. To change the Presseurmantels the first shaft journal of the impression roller is exposed by first below the second shaft journal is equipped with a horizontally extending support or slide rail equipped holding device. In this position, the support rail is fixed. In addition, on the section of the second shaft journal which extends beyond the spring carriage supporting the folding shaft bearing, a supporting shell which simultaneously defines a vertical pivot axis acts from above. After removing the folding bearing of the two shaft journal of the impression roller, now held only by the support rail and the support shell to the described vertical Swivel axis are pivoted in the horizontal direction, so that the Presseurmantel can be deducted in the axial direction of the impression roller shaft.

Das beschriebene Druckwerk weist allerdings den Nachteil auf, dass vor dem Wechsel des Presseurmantels an beiden Enden der Presseurwalze Stützvorrichtungen angestellt beziehungsweise die Klapplager entfernt werden müssen, um den Presseur verschwenken zu können. Daher ist der Wechsel des Presseurmantels umständlich und damit zeitaufwändig.However, the printing unit described has the disadvantage that employed before changing the presser tower shell at both ends of the impression roller roller support devices or the folding bearings must be removed in order to pivot the impression roller can. Therefore, the change of Pressurmantels is cumbersome and therefore time consuming.

Aufgabe der vorliegenden Erfindung ist es daher, ein gattungsgemäßes Druckwerk vorzuschlagen, bei dem der Wechsel des Presseurmantels weniger umständlich ist.Object of the present invention is therefore to propose a generic printing unit, in which the change of the Presseurmantels is less cumbersome.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object is solved by the characterizing features of claim 1.

Demnach sind die Mittel zum Halten des Presseurs in einer Austauschposition derart ausgestaltet, dass sie den Presseur in einer Position halten, in der die Presseurwelle gegen die Schwerkraft geneigt ist. Die Schwerkraft übt dabei ein Drehmoment auf den Presseur aus, so dass sich der Presseur während des Freilegens eines Wellenzapfens oder unmittelbar danach mit dem freigelegten Wellenzapfen in Richtung auf die ihn anziehende Kraft, also die Schwerkraft, bewegt. Dies ist beispielsweise eine vertikale Absenkbewegung, die jedoch noch mit einer Schwenkbewegung überlagert sein kann. Die Mittel zum Halten sind dabei so angeordnet, dass sie während des Druckbetriebes nicht mit der Presseurwelle in Kontakt stehen. Sie wirken aber dem von der Schwerkraft erzeugten Drehmoment entgegen, wenn sie in Kontakt mit der Presseurwelle kommen. Die Mittel zum Halten umfassen einen Anschlag, mit dem der Neigungswinkel begrenzt wird. Die gewählte Anordnung der Mittel zum Halten bestimmt den Neigungswinkel, den die Presseurwelle nun gegenüber ihrer früheren Position, zum Beispiel der Position im Druckbetrieb, einnimmt. Die Mittel zum Halten müssen nicht, wie im Stand der Technik der Fall, zunächst in Kontakt mit der Presseurwelle gebracht werden, bevor der erste Wellenzapfen freigelegt wird. In der geneigten Position kann nun auf einfache Weise der Presseurmantel von der Presseurwelle abgezogen werden, da dieser Vorgang aufgrund der Schwerkrafteinwirkung auf den Presseurmantel erleichtert wird. Der Anschlag kann verfahrbar ausgeführt sein, um die Absenkstrecke frei wählen zu können. Mithilfe eines verfahrbaren Anschlags kann sogar die Senk- und Hebebewegung ausgeführt oder unterstützt werden. In einer bevorzugten Ausführungsform der Erfindung ist der Anschlag jedoch am Druckwerksrahmen befestigt.Thus, the means for holding the impression roller in an exchange position are configured to hold the impression roller in a position in which the impression roller shaft is inclined against gravity. The force of gravity exerts a torque on the impression roller, so that the impression roller during the exposure of a shaft journal or immediately thereafter with the exposed shaft journal in the direction of the force attracting him, so gravity moves. This is, for example, a vertical lowering movement, which, however, may be superposed with a pivoting movement. The means for holding are arranged so that they are not in contact with the impression shaft during the printing operation. However, they counteract the torque generated by gravity when they come into contact with the impression shaft. The means for holding comprise a stop limiting the angle of inclination. The chosen arrangement of the means for holding determines the angle of inclination that the impression roller shaft now occupies with respect to its previous position, for example the position in the printing operation. The means for holding need not, as is the case in the prior art, first be brought into contact with the impression shaft before the first shaft journal is exposed. In the inclined position can now easily Presseurmantel of be deducted from the impeller shaft, since this process is facilitated due to the gravitational force on the Presseurmantel. The stop can be made movable in order to choose the Absenkstrecke free. With the aid of a movable stopper, even the lowering and lifting movement can be carried out or supported. In a preferred embodiment of the invention, however, the stop is attached to the printing unit frame.

Besonders vorteilhaft ist es, wenn die Mittel zum Halten des Presseurs geeignet sind, den Presseur in zumindest zwei verschiedenen Positionen zu halten, in welchen die Presseurwelle gegen die Schwerkraft geneigt ist Auf diese Weise kann die Presseurwelle nach dem Abziehen in eine andere Position gebracht werden, in der das Aufschieben eines neuen Presseurmantels erleichtert wird. In der Regel wird dazu ein geringerer Neigungswinkel als zum Abziehen eingestellt, um nicht mit allzu großer Kraft gegen die Schwerkraft arbeiten zu müssen.It is particularly advantageous if the means for holding the impression roller are adapted to hold the impression roller in at least two different positions, in which the impression roller shaft is inclined against gravity. In this way, the impression roller shaft can be brought into a different position after removal, in which the postponement of a new Presseurmantels is facilitated. As a rule, a lesser angle of inclination is set than for peeling in order not to have to work with too great a force against gravity.

Vorteilhafterweise besitzt dabei der Neigungswinkel gegen die Schwerkraft in der ersten Position ein anderes Vorzeichen als in der zweiten Position. Dies bedeutet in der Regel, dass der freigelegte Wellenzapfen in der ersten Position gegenüber dem Druckbetrieb abgesenkt, in der zweiten Position jedoch angehoben ist. Diese Maßnahme erleichtert in besonders einfacher Art das Wechseln des Presseurmantels, da nun die Einwirkung der Schwerkraft auf den Presseurmantel zu dessen Wechsel ausgenutzt werden kann.Advantageously, the angle of inclination against gravity in the first position has a different sign than in the second position. This usually means that the exposed shaft journal is lowered in the first position relative to the printing operation, but raised in the second position. This measure facilitates in a particularly simple way changing the Presseurmantels, since now the action of gravity can be exploited on the Presseurmantel to its change.

In einer bevorzugten Ausgestaltung der Erfindung umfassen die Mittel zum Halten ein Lager, an dem die Presseurwelle mit ihrem zweiten Wellenzapfen angelenkt oder gelagert ist. Das Lager ist so aufgebaut, dass mit ihm die Neigung der Presseurwelle so vornehmbar ist. Dazu kann das Lager an seinem Außenumfang konvex ausgeformt und von einer konkav ausgeformten Buchse umschlossen sein. Diese Buchse ist auf eine weiter unten beschriebenen Weise mit dem Druckwerksrahmen verbunden. Durch diese aufgrund des beschriebenen Aufbaus ermöglichte Bewegungsfreiheit des Lagers kann, nachdem der erste Wellenzapfen freigelegt wurde, die Presseurwelle geneigt werden. Durch eine entsprechende Ausnehmung im Druckmaschinengestell kann nun der Presseurmantel in axialer Richtung von der Presseurwelle abgezogen werden. Dadurch, dass gegenüber dem Stand der Technik kein zusätzlicher Platz mehr in horizontaler Richtung zum Freilegen des ersten Wellenzapfens benötigt wird, kann der Presseurmantel gewechselt werden, während weitere Druckwerke in der Druckmaschine in Betrieb stehen und der Bedruckstoff durch das Druckwerk mit dem zu wechselnden Presseurmantel hindurch läuft. Bei Druckwerken mit horizontal schwenkbarer Presseurwelle bestünde bei dem Wechsel des Presseurmantels unter laufendem Betrieb eine erhöhte Unfallgefahr für das Bedienpersonal und ist daher in der Regel nicht vorgesehen.In a preferred embodiment of the invention, the means for holding comprise a bearing on which the impression roller shaft is articulated or mounted with its second shaft journal. The bearing is constructed so that with him the inclination of the impression shaft is vornehmbar. For this purpose, the bearing may be convexly formed on its outer circumference and enclosed by a concave shaped bushing. This socket is connected to the printing unit frame in a manner described below. As a result of this freedom of movement of the bearing, which is made possible by the construction described above, after the first shaft journal has been uncovered, the impeller shaft is inclined become. By a corresponding recess in the printing press frame, the Presseurmantel can now be deducted in the axial direction of the impression shaft. Due to the fact that no additional space in the horizontal direction is required in comparison with the prior art for exposing the first shaft journal, the pressurm shell can be exchanged. while more printing units are in operation in the printing press and the printing material passes through the printing unit with the Presseurmantel to be changed. For printing units with horizontally swiveling impression shaft, there would be an increased risk of accident for the operating personnel during the change of the presser mantle under continuous operation and, as a rule, is therefore not intended.

In weiterer Ausgestaltung der Erfindung greifen die Mittel zum Halten des Presseurs in einer Austauschposition an der Presseurwelle zwischen dem zweiten Wellenzapfen und der Arbeitsposition des Presseurmantels an. Unter Arbeitsposition des Presseurmantels ist die axiale Position zu verstehen, die der Presseurmantel während des Druckbetriebes einnimmt Als Wellenzapfen ist in diesem Fall das Ende der Presseurwelle zu verstehen.In a further embodiment of the invention, the means for holding the impression roller in an exchange position on the impression shaft between the second shaft journal and the working position of the Presseurmantels attack. The working position of the presser mantle is to be understood as meaning the axial position which the press mantle occupies during the printing operation. In this case, the end of the mover shaft is to be understood as a shaft journal.

In weiterer Ausgestaltung der Erfindung ist die Presseurwelle mithilfe einer Kraft beaufschlagbar, welche die Neigung der Presseurwelle bewirkt. Die Hebe- und Senkvorrichtung kann mit einem Lager, welches im Bereich des ersten Wellenzapfens die Presseurwelle umgreift, in Eingriff bringbar sein. Mit dieser Hebe- und Senkvorrichtung kann der Wellenzapfen und damit die Presseurwelle bewegt werden. Die angehobene Position ist dabei gleichzeitig die Betriebsposition, in der der Presseur mit dem Bedruckstoff in Kontakt gebracht und an den Formzylinder angestellt werden kann. Das Anheben und das Absenken erfolgt dabei relativ zu dem Bauteil des Druckwerks, an dem die Hebe- und Senkvorrichtung befestigt ist. Dieses kann der Druckwerksrahmen oder auch ein anderes Bauteil, welches mit dem Druckwerksrahmen verbunden ist, sein.In a further embodiment of the invention, the impression roller shaft can be acted upon by means of a force which effects the inclination of the impression roller shaft. The lifting and lowering device can be brought into engagement with a bearing, which surrounds the impression shaft in the region of the first shaft journal. With this lifting and lowering device, the shaft journal and thus the impression shaft can be moved. The raised position is at the same time the operating position in which the impression roller can be brought into contact with the printing material and employed on the forme cylinder. The lifting and lowering takes place relative to the component of the printing unit to which the lifting and lowering device is attached. This may be the printing unit frame or another component which is connected to the printing frame, be.

Von besonderem Vorteil ist es, wenn die Haltevorrichtung, mit welcher der zweite Wellenzapfen der Presseurwelle gehalten wird und die Hebe- und Senkvorrichtung, mit welcher der erste Wellenzapfen anheb- und absenkbar ist, mit jeweils einer Tragplatte, den so genannten Presseurplatten, verbunden sind, welche relativ zum Druckwerksrahmen verschiebbar sind. Die Haltevorrichtung besteht dann beispielsweise aus einem an der einen Presseurplatte angebrachten Tragwinkel, der die Buchse trägt, in welcher sich wiederum das Lager befindet. Die Buchse kann aber auch direkt an der Presseurplatte befestigt sein. Aufgrund der Verschiebbarkeit der Presseurplatten relativ zum Druckwerksrahmen kann der Presseur derart angehoben werden, dass er nicht mehr in Kontakt mit dem Bedruckstoff steht. Dieses ist eine Voraussetzung, um den Presseurmantel unter laufendem Betrieb, also wenn der Bedruckstoff über die Leitwalzen durch das Druckwerk geführt wird, wechseln zu können.It is particularly advantageous if the holding device, with which the second shaft journal of the impression roller shaft is held, and the lifting and lowering device, with which the first shaft journal can be raised and lowered, are each connected to a support plate, the so-called pressure former plates. which are displaceable relative to the printing unit frame. The holding device then consists for example of a attached to the one Presseurplatte support bracket which carries the socket, in which in turn is the camp. But the socket can also be attached directly to the Presseurplatte. Due to the displaceability of the Presseurplatten relative to the printing unit frame of the impression roller can be raised so that it is no longer in contact with the substrate. This is a prerequisite to be able to change the Presseurmantel under continuous operation, so when the substrate is passed through the printing unit on the guide rollers.

Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.Further embodiments of the invention will become apparent from the description and the claims.

Die einzelnen Figuren zeigen:

Fig. 1
Seitenansicht eines erfindungsgemäßen Druckwerks im Druckbetrieb
Fig. 2
Seitenansicht eines erfindungsgemäßen Druckwerks in einer Position, in der der Presseurmantel gewechselt werden kann
Fig. 3
Ansicht III-III aus Fig. 2
The individual figures show:
Fig. 1
Side view of a printing unit according to the invention in printing operation
Fig. 2
Side view of a printing unit according to the invention in a position in which the Presseurmantel can be changed
Fig. 3
View III-III off Fig. 2

Fig. 1 zeigt ein erfindungsgemäßes Druckwerk 1, von dessen Druckwerksrahmen das vordere Seitengestell aus Gründen der besseren Übersichtlichkeit nicht dargestellt ist, so dass das hintere Seitengestell 2 sichtbar ist. Über ebenfalls nicht dargestellte Anbauten an die Seitengestelle 2 sind die Leitwalzen 3, 4, 5 drehbar im Druckwerksrahmen gelagert. Über diese Leitwalzen 3, 4, 5 wird der Bedruckstoff 6 durch das Druckwerk 1 geführt. Im in Fig. 1 dargestellten Druckbetrieb wird der Bedruckstoff 6 zusätzlich über den Presseur 7 geführt. Der Presseur 7 ist dabei gegen den Formzylinder 8 angestellt. Dieser Formzylinder 8 entnimmt Druckfarbe aus einem Farbreservoir und überträgt diese auf den Bedruckstoff 6. Um den Presseur 7 vom Bedruckstoff 6 abheben zu können, aber auch, um den Presseur 7 auf die verschiedenen Umfänge des Formzylinders 8 anpassen zu können, ist der Presseur 7 relativ zum Druckwerksrahmen vertikal verschiebbar. Zu diesem Zweck ist der Presseur 7 mit Presseurplatten 9, von der nur die vordere sichtbar ist, verbunden. Auf diesen Presseurplatten 9 sind Schlitten 10 angebracht, die an die Seitengestelle 2 angebrachte Schienen 11 umfassen, so dass eine lineare Verfahrbarkeit sichergestellt ist. Das Verschieben selbst erfolgt durch einen Hubantrieb 13, der auf die Zugstange 12 wirkt. Das dem Hubantrieb 13 abgewandte Ende der Zugstange 12 ist mit der Presseurplatte 9 verbunden. Der Hubantrieb kann beispielsweise ein an sich bekannter Spindelantrieb oder auch eine Kolbenzylindereinheit sein: Auch weitere Formen von Hubantrieben sind an dieser Stelle einsetzbar. Fig. 1 shows a printing unit 1 according to the invention, from the printing unit frame, the front side frame is not shown for reasons of clarity, so that the rear side frame 2 is visible. About not shown additions to the side frames 2, the guide rollers 3, 4, 5 are rotatably mounted in the printing unit frame. About this guide rollers 3, 4, 5, the substrate 6 is passed through the printing unit 1. Im in Fig. 1 shown printing operation, the substrate 6 is additionally guided over the impression roller 7. The impression roller 7 is employed against the forme cylinder 8. This form cylinder 8 takes ink from a color reservoir To transfer the impression roller 7 from the substrate 6, but also to adjust the impression roller 7 to the different circumferences of the forme cylinder 8, the impression roller 7 is vertically displaceable relative to the printing unit frame. For this purpose, the impression roller 7 with Presseurplatten 9, of which only the front is visible connected. On these Presseurplatten 9 slides 10 are mounted, which include attached to the side frames 2 rails 11, so that a linear mobility is ensured. The displacement itself is effected by a lifting drive 13, which acts on the pull rod 12. The lifting drive 13 facing away from the end of the tie rod 12 is connected to the Presseurplatte 9. The linear actuator can be for example a known per se spindle drive or a piston-cylinder unit: Also, other forms of linear actuators can be used at this point.

Im Druckbetrieb wird der Presseur 7 von einer Hebe- und Senkvorrichtung 14 relativ zur Presseurplatte 9 unbeweglich gehalten. Die Betätigung dieser Hebe- und Senkvorrichtung 14 erfolgt durch eine Kolbenzylindereinheit 15, die drehbar an der Presseurplatte 9 gelagert ist. Die Kolbenzylindereinheit 15 wirkt auf den ersten Schenkel eines U-förmigen Hebels 16, der in etwa mittig drehbar an der Presseurplatte 9 gelagert ist. Am zweiten Schenkel des U-förmigen Hebels 16 ist ein Verbindungsstück 17 gelenkig gelagert. Das andere Ende des Verbindungsstücks 17 ist drehbar mit einem linearen Hebel 18 verbunden. Dieser lineare Hebel 18 ist in etwa mittig drehbar an der Presseurplatte 9 gelagert. Das freie Ende 19 des linearen Hebels 8 ist abgewinkelt, so dass dieses unter das Lager 21, welches auf die Presseurwelle 20 aufgebracht ist, fassen kann und den Presseur 7 so relativ zur Presseurplatte 9 unbeweglich halten kann. Dabei wird das Lager 21 zwischen dem freien Ende 19 des linearen Hebels 18 und einer Ausnehmung 23 der Presseurplatte 9 klemmend gehalten.In the printing operation of the impression roller 7 is held immobile by a lifting and lowering device 14 relative to the Presseurplatte 9. The operation of this lifting and lowering device 14 is effected by a piston-cylinder unit 15 which is rotatably mounted on the Presseurplatte 9. The piston-cylinder unit 15 acts on the first leg of a U-shaped lever 16, which is mounted rotatably in the center approximately on the impression roller plate 9. On the second leg of the U-shaped lever 16, a connecting piece 17 is articulated. The other end of the connecting piece 17 is rotatably connected to a linear lever 18. This linear lever 18 is rotatably mounted approximately centrally on the Presseurplatte 9. The free end 19 of the linear lever 8 is angled so that it can take under the bearing 21, which is applied to the impression roller shaft 20, and can hold the impression roller 7 so immovable relative to the Presseurplatte 9. In this case, the bearing 21 is clamped between the free end 19 of the linear lever 18 and a recess 23 of the Presseurplatte 9.

Soll nun der Presseur 7 zum Zwecke des Wechsels des Presseurmantels 22 gelöst werden, werden zunächst die Presseurplatten 9 über die Zugstangen 12 und die Hubantriebe 13 bis in eine festgelegte Wechselposition angehoben, so dass der Presseur 7 nicht mehr mit dem Bedruckstoff 6 in Kontakt steht. Anschließend wird die Kolbenzylindereinheit 15 betätigt. Über den Hebelmechanismus wird das freie Ende 19 des linearen Hebels 18 von dem Lager 21 nach unten abgeschwenkt, so dass sich das in der Fig. 1 sichtbare Ende des Presseurs 7 langsam absenkt. Das freie Ende 19 ist zusätzlich noch mit einem Haken 29 versehen, der verhindert, dass das freizulegende Ende des Presseurs 7 entlang des freien Endes 19 herunterrutscht und sich so unkontrolliert oder schräg absenkt. Ein im wesentlichen vertikales Absenken ist auf diese Weise gewährleistet. Die Fig. 2 zeigt das Druckwerk 1 nach erfolgter Absenkung des vorderen Endes des Presseurs 7. In dieser Position wird der Bedruckstoff 6 lediglich noch über die Leitwalzen 3, 4, 5 geführt. Der Presseur 7 besitzt ausreichend Abstand zum Bedruckstoff 6, so dass ein Auswechseln des Presseurmantels 22 ohne ein Unfallrisiko für den Bediener erfolgen kann.If now the impression roller 7 are to be released for the purpose of changing the presser tower cover 22, the impression roller plates 9 are first raised via the tie rods 12 and the lifting drives 13 into a predetermined change position so that the impression roller 7 is no longer in contact with the printing material 6. Subsequently, the piston-cylinder unit 15 is actuated. About the lever mechanism, the free end 19 of the linear lever 18 is pivoted from the bearing 21 downwards, so that in the Fig. 1 visible end of impression roller 7 slowly lowers. The free end 19 is additionally provided with a hook 29, which prevents the exposed end of the impression roller 7 from slipping down along the free end 19 and thus descends uncontrolled or obliquely. A substantially vertical lowering is ensured in this way. The Fig. 2 shows the printing unit 1 after the lowering of the front end of the impression roller 7. In this position, the printing material 6 is still only on the guide rollers 3, 4, 5 out. The impression roller 7 has sufficient distance from the printing material 6, so that replacement of the Presseurmantels 22 can take place without an accident risk for the operator.

Die Fig. 3 zeigt die Ansicht III-III der Fig. 2. des Druckwerks 1. In dieser Ansicht sind beide Seitengestelle 2 und auch beide Presseurplatten 9 dargestellt beziehungsweise sichtbar. In dieser Figur wurde jedoch auf die Darstellung der Leitwalzen 3, 4, 5 und des Bedruckstoffes 6 verzichtet. Jeder Presseurplatte 9 ist eine eigene Zugstange 12 und ein eigener Hubantrieb 13 zugeordnet, jedoch sind beide Presseurplatten 9 zum Zwecke des Gleichlaufs mit einer Traverse 24 verbunden. Dadurch ist ein gleichmäßiger Andruck des Presseurs 7 in Richtung auf den Formzylinder 8 im Druckbetrieb gewährleistet.The Fig. 3 shows the view III-III of Fig. 2 , of the printing unit 1. In this view, both side frames 2 and both Presseurplatten 9 are shown or visible. In this figure, however, the representation of the guide rollers 3, 4, 5 and the printing material 6 was omitted. Each Presseurplatte 9 is assigned its own pull rod 12 and its own lifting drive 13, but both Presseurplatten 9 are connected for the purpose of synchronization with a crossbar 24. As a result, a uniform pressure of the impression roller 7 is ensured in the direction of the forme cylinder 8 in the printing operation.

Das freie Ende 19 des linearen Hebels 18 umfasst das Lager 21 des Presseurs 7 nicht, so dass dieses erste, in dieser Fig. linksseitige, Ende des Presseurs 7 leicht abgesenkt ist. Um dieses Absenken zu ermöglichen, ist das Lager 25, in welchem das zweite Ende der Presseurwelle 20 gelagert ist, kippbar ausgestattet. Dazu wird das Lager 25 von einer Buchse 28, umschlossen, wobei die Buchse 28 mit der Presseurplatte 9 verbunden ist. Die Presseurwelle 20 durchstößt mit ihrem Wellenzapfen 26 nicht nur das Lager 25, sondern auch die Presseurplatte 9 und das Seitengestell 2. Um ein zu weites Absenken des ersten Endes des Presseurs 7 zu verhindern, ist auf der Außenseite des Seitengestells 2 ein Anschlag 27 befestigt. Auf diesem Anschlag 27 stützt sich der Wellenzapfen 26 ab. In dieser Position lässt sich nun der Presseurmantel 22 in Richtung des Doppelpfeils A abziehen und wieder aufschieben. Bezugszeichenliste 1 Druckwerk 2 Seitengestell 3 Leitwalze 4 Leitwalze 5 Leitwalze 6 Bedruckstoff 7 Presseur 8 Formzylinder 9 Presseurplatte 10 Schlitten 11 Schiene 12 Zugstange 13 Hubantrieb 14 Hebe- und Senkvorrichtung 15 Kolbenzylindereinheit 16 U-förmiger Hebel 17 Verbindungsstück 18 linearer Hebel 19 freies Ende 20 Presseurwelle 21 Lager 22 Presseurmantel 23 Ausnehmung 24 Traverse 25 Lager 26 Wellenzapfen 27 Anschlag 28 Buchse 29 Haken A Abziehrichtung des Presseurmantels 22 The free end 19 of the linear lever 18 does not include the bearing 21 of the impression roller 7, so that this first, left side in this Fig., End of the impression roller 7 is slightly lowered. To enable this lowering, the bearing 25, in which the second end of the impression roller shaft 20 is mounted, tiltably equipped. For this purpose, the bearing 25 is surrounded by a bush 28, wherein the bush 28 is connected to the Presseurplatte 9. The impeller shaft 20 penetrates with its shaft journal 26 not only the bearing 25, but also the Presseurplatte 9 and the side frame 2. In order to prevent too far lowering of the first end of the impression 7, on the outside of the side frame 2, a stop 27 is attached. On this stop 27, the shaft journal 26 is supported. In this position, the Presseurmantel 22 can now deduct in the direction of the double arrow A and postpone again. LIST OF REFERENCE NUMBERS 1 printing unit 2 side frame 3 guide roll 4 guide roll 5 guide roll 6 substrate 7 impression roller 8th form cylinder 9 Presseurplatte 10 carriage 11 rail 12 pull bar 13 Linear actuator 14 Lifting and lowering device 15 Piston-cylinder unit 16 U-shaped lever 17 joint 18 linear lever 19 free end 20 impression roller 21 camp 22 Presseurmantel 23 recess 24 traverse 25 camp 26 shaft journal 27 attack 28 Rifle 29 hook A Pull-off direction of the presser tower cover 22

Claims (11)

  1. Printing unit (1) of a printing press
    - which at least comprises an impression roller (7) which during the printing operation comprises an impression roller jacket (22) which is mounted to an impression roller shaft (20) with two shaft journals at the end,
    - at which (1) at least one of the two shaft journals of the impression roller shaft (20) can be exposed in order to replace the impression roller jacket (22) and
    - which (1) comprises means (25, 27, 28) for the holding of the at last one impression roller (7) in at least a replacement position of the impression roller jacket (22),
    characterized in
    - that the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position is shaped in such a way that they keep the impression roller (7) in a position that the impression roller shaft (20) is inclined against gravitation and
    - that the means (25, 27, 28) for the holding of the impression roller (7) comprise an edge guide (27) in a replacement position which limits the angle of inclination of the impression roller shaft (20).
  2. Printing unit according to the preceding claim,
    characterized in
    that the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position are suited to hold the impression roller (7) in at least two different positions in which the impression roller shaft (22) is inclined against gravitation.
  3. Printing unit according to the preceding claim,
    characterized in that
    - the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position are suited to hold the impression roller (7) in at least two different positions in which the impression roller shaft (20) is inclined against gravitation,
    - whereby the angle of inclination against gravitation features in the first position another prefix than in the second position.
  4. Printing unit according to one of the preceding claims,
    characterized in that
    the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position comprise a bearing (25),
    - at which (25) the impression roller shaft (20) with its second shaft extension (26) is controlled or supported, and
    - by means of which (25) the inclination of the impression roller shaft (20) can be executed in such a way
    - that the vertical position of the first shaft extension of the impression roller shaft (20) can be changed.
  5. Printing unit (1) according to one of the preceding claims,
    characterized in that
    the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position effect the impression roller shaft (20).
  6. Printing unit (1) according to the preceding claim,
    characterized in that
    the means (25, 27, 28) for the holding of the impression roller (7) in a replacement position at the impression roller shaft (20) effect the second shaft extension (26) and the working position of the impression roller shaft (22)
  7. Printing unit (1) of a printing press according to one of the claims 4 to 7,
    characterized in that
    by means of a lifting- and lowering gear, the impression roller shaft (20) is chargeable with a force which effects the inclination of the impression roller shaft (20).
  8. Printing unit (1) of a printing press according to the preceding claim,
    characterized in that
    the impression roller shaft (20) and the lifting- and lowering gear (14) in the printing unit (1) are arranged in such a way to each other that the force effecting the inclination of the impression roller shaft (20) effects in the final section of the impression roller shaft (20) where the first shaft extension is situated.
  9. Printing unit (1) of a printing press according to the preceding claim,
    characterized in that
    the lifting- and lowering gear (14) is a pneumatically operated lever mechanism (16, 17, 18, 19).
  10. Printing unit (1) of a printing press according to one or several of the preceding claims,
    characterized in that
    the holding device (28) by means of which the second shaft extension (26) of the impression roller shaft (20) is held and the lifting- and lowering gear (14) by means of which the first shaft extension (26) can be lifted and lowered, is connected with a least one carrier plate (9) which can be shifted relatively to the side frame (2) of the printing unit frame.
  11. Procedure for the exchange of an impression roller jacket (22) of an impression roller (7) in a printing unit (1) of a printing press drawn on an impression roller shaft (20), whereby the first shaft extension of the impression roller shaft (20) is excavated while the second shaft extension (26) of the impression roller shaft (20) is held by means (25, 27, 28) for the holding ,
    characterized in
    - that the first shaft extension is lowered by means of a lifting- and lowering gear (14), and
    - that the lifting- and lowering gear (14) is separated from the first shaft extension in order to exchange the impression roller jacket (22), and
    - that the impression roller shaft (20) is kept in an inclined position against gravitation during the exchange of the impression roller jacket, and
    - that the angle of inclination of the impression roller shaft (20) is limited by means of an edge guide if the impression roller (7) is in an exchange position.
EP05715859A 2004-03-25 2005-02-07 Printing mechanism of a printing machine having a pressure roller Not-in-force EP1732760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015180A DE102004015180B4 (en) 2004-03-25 2004-03-25 Printing unit of a printing press with impression roller
PCT/EP2005/002466 WO2005092616A1 (en) 2004-03-25 2005-02-07 Printing mechanism of a printing machine having a pressure roller

Publications (2)

Publication Number Publication Date
EP1732760A1 EP1732760A1 (en) 2006-12-20
EP1732760B1 true EP1732760B1 (en) 2010-06-02

Family

ID=34961917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715859A Not-in-force EP1732760B1 (en) 2004-03-25 2005-02-07 Printing mechanism of a printing machine having a pressure roller

Country Status (4)

Country Link
EP (1) EP1732760B1 (en)
AT (1) ATE469762T1 (en)
DE (2) DE102004015180B4 (en)
WO (1) WO2005092616A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006041314B4 (en) * 2006-09-01 2008-10-02 Windmöller & Hölscher Kg Printing unit of a gravure printing machine
CN113183623A (en) * 2021-04-29 2021-07-30 无锡光群雷射科技有限公司 Quick plate changing device and plate changing method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282136C (en) *
US1329325A (en) * 1918-04-04 1920-01-27 George W Mascord Printing-machine
DE3543704A1 (en) * 1985-12-11 1987-06-19 Md Papierfabrik Pasing Nicolau DEVICE AND METHOD FOR PRINTING A TRAIN
IT1226463B (en) * 1988-07-27 1991-01-16 Sted Eng Srl QUICK COUPLING FOR REPLACING ROLLERS
DE4008501A1 (en) * 1989-12-18 1991-06-20 Windmoeller & Hoelscher PRINTING MACHINE WITH PRESSORS WITH INTERCHANGEABLE SLEEVE-SHAPED PRESSING MACHINES
DE4005890A1 (en) * 1990-02-24 1991-09-05 Bielomatik Leuze & Co Cliché sleeve mounting device
US6186068B1 (en) * 1999-05-18 2001-02-13 Creo Srl Method for holding printing sleeves in an imaging device
ATE270616T1 (en) * 2002-02-26 2004-07-15 Rsd Technik Gmbh ENGRAVING OR PRINTING MACHINE

Also Published As

Publication number Publication date
ATE469762T1 (en) 2010-06-15
WO2005092616A1 (en) 2005-10-06
DE502005009679D1 (en) 2010-07-15
EP1732760A1 (en) 2006-12-20
DE102004015180A1 (en) 2005-10-20
DE102004015180B4 (en) 2008-10-02

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