EP2127871B1 - Inking or printing unit of a printing press - Google Patents

Inking or printing unit of a printing press Download PDF

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Publication number
EP2127871B1
EP2127871B1 EP09007037A EP09007037A EP2127871B1 EP 2127871 B1 EP2127871 B1 EP 2127871B1 EP 09007037 A EP09007037 A EP 09007037A EP 09007037 A EP09007037 A EP 09007037A EP 2127871 B1 EP2127871 B1 EP 2127871B1
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EP
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Prior art keywords
bearing
inking
printing unit
ink transfer
cylinder
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EP09007037A
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German (de)
French (fr)
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EP2127871A1 (en
Inventor
Dietmar Koopmann
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • 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

Definitions

  • the invention relates to a color or printing unit of a printing machine, which comprises a ink transfer roller, at least consisting of a roller body, connect to the end-side pin, each pin of the roller is rotatably mounted in each case a bearing housing of the color or printing unit via at least one bearing wherein the bearing housings for adjusting the ink transfer roller to a further cylinder of the printing press are independently movable relative to the further cylinder.
  • flexographic printing can be format rollers to which a cliché cylinder jacket consisting of a sleeve can be pushed in order to be able to convert to a new job as quickly as possible.
  • offset printing are available as ink transfer rollers, among other blanket cylinder available that transmitted a printed image that was conveyed to them by a printing plate-bearing cylinder.
  • the above-mentioned printing plate cylinder transfer color are available as ink transfer rollers, among other blanket cylinder available that transmitted a printed image that was conveyed to them by a printing plate-bearing cylinder.
  • the above-mentioned printing plate cylinder transfer color are available as ink transfer rollers, among other blanket cylinder available that transmitted a printed image that was conveyed to them by a printing plate-bearing cylinder.
  • intaglio printing process is to be mentioned as a ink transfer roller of the forme cylinder, in which so-called wells are engraved for color transfer.
  • the patent application EP 1 852 256 A1 shows a format cylinder of a flexographic printing machine whose end bearing journals are mounted in bearings, such as needle bearings.
  • the bearings are independently movable.
  • bearings are stored in bearing receptacles, for example in so-called bearing housings.
  • bearing housings can serve a movable bearing block, with the help of which then the bearing is movable.
  • the bearings are in movable bearing blocks.
  • the mobility of the bearing blocks is often provided by rails on which the bearing blocks are movable.
  • so-called eccentrics often include the bearings of a color transfer cylinder.
  • the cliché jacket coat thickness in particular in the case of the flexographic printing process, it is possible for the cliché jacket coat thickness to vary over the length of the format cylinder because, for example, the adhesion of the cliché coat jacket to the format cylinder is uneven or the cliché coat has a manufacturing defect.
  • the object of the present invention is therefore to propose a bearing for a format cylinder, which reduces the disadvantages of the prior art.
  • a further bearing at least one end-side pin, which allows a pivoting of at least one bearing with respect to an axis which is perpendicular to the Anstellraum the ink transfer roller to the other cylinder.
  • the further storage should at least provide a pivoting of the bearing or bearings with respect to an axis which is perpendicular to the Anstellraum.
  • this axis is perpendicular to the plane which is spanned by the adjusting movement of the format cylinder and the pressure nip.
  • An advantage over this limited pivoting is when pivoting the further storage is given with respect to at least two axes. This is called pivoting with respect to a plane.
  • a large pivoting is ensured by bearings in which a bearing head slides in a ring.
  • the bearing pivotally designed by the bearing can be a bearing that the shaft or axle that supports it allows axial or circumferential movement. If a stronger displacement drive for moving the ink-transferring roller is provided in the inking unit, further storage of an axial bearing is of particular advantage.
  • Such a thrust bearing is often part of a side register device by allowing relative movements between rollers and shafts that drive these rollers. By such a thrust bearing can - if necessary - the drive motor of such a roller remain stationary in a side register movement, which has advantages.
  • the axial bearing is advantageously an axial deep groove ball bearing whose bearing shells are displaceable relative to each other via balls, so that an inclined position of the format cylinder - a so-called angular error - can be compensated.
  • the at least one bearing may also be a radial bearing.
  • the device for adjusting the side register can be, for example, a spindle adjustment, which can be driven by a motor.
  • the bearing block which includes the bearing, for example, for side register adjustment have a bore into which a sleeve with an external thread is inserted.
  • the bearing block By the motor (rotation-shaped) driving the sleeve, the bearing block, which is for example mounted on rails, can be moved.
  • FIG. 1 A plan view of a two-sided storage of a color transfer cylinder
  • FIG. 2 An enlargement of the further storage according to the invention
  • FIG. 1 A plan view of a two-sided storage of a color transfer cylinder
  • FIG. 1 shows a plan view of a color transfer cylinder in an inking unit.
  • the color transfer cylinder 1 to be changed is lifted or introduced in a manner not described in more detail in a color or printing unit of a printing machine, also not shown in the drawing, for example a flexographic printing press.
  • the ink transfer cylinder 1 - for example, the format cylinder of a flexographic printing press - is mounted between operator BS and drive side AS each in a radial bearing 2 and 3.
  • the end-side shaft journals 19 of the ink transfer roller 1 comprise positive coupling halves.
  • the piston 13 of a pneumatic piston-cylinder unit 5, 13 at the end comprises a coupling half corresponding to the coupling half of the ink transfer roller. Both coupling halves form the clutch 4.
  • a further coupling half is provided, which corresponds to the coupling half of the ink transfer roller. Both coupling halves form the coupling 6.
  • the piston 13 of the air cylinder piston unit 5,13 is moved counter to the direction of the arrow 9 and thus the coupling halves of the couplings 4 and 6 positively connected.
  • the force exerted by the compressed-air cylinder piston unit 5, 13 on the clutches is constant and so large that the positive engagement of the clutches 4 and 6 is ensured even during the printing operation.
  • the force can be varied depending on the printing speed.
  • the bearings that store the format or color transfer cylinder 1 are stored in bearing blocks 13.
  • the axial bearing 7 is a structural unit with the further storage 24:
  • the thrust bearing 7 consists of bearing shells 15 a, 15 b, which are mutually displaceable by means of balls 16.
  • the bearing shell 15b also has the function of a bearing head 30 which is movable in the ring 17 along the circular arc 25. In this way, an oblique position of the cylinder journal 19 of the format cylinder 1 does not lead to tilting in the axial bearing 7.
  • the axial bearing is advantageously an axial deep groove ball bearing 7, whose bearing shells 15a, 15b, as mentioned, are displaceable relative to one another via balls 16.
  • the structure described above has the effect that, when an angular error of a format or color transfer cylinder 1, a force is exerted by the direction of the in FIG. 2 drawn force F L deviates, the bearing shell 15b is moved in the direction of arrow 25.
  • a corrugated bellows 8 for example a metal shaft bellows, which transmits the angular error (also called axial offset of the cylinder 1), which the oblique position of the format cylinder 1 transfers to the axial bearing 7, can compensate.
  • angular error also called axial offset of the cylinder 1
  • Another advantage of the bellows 8 is that it is very torsionally stiff.
  • the jaw clutches can be acted upon by the pneumatic cylinder 5 with a force to keep the clutch in working position. If this is the case, larger forces act on the axial bearing 7 over a longer period of time. Circumstances of this type reinforce the advantages of the present invention.
  • the area 12 which includes the axial bearing 7, can be moved by means of a spindle adjustment, not shown here in the direction of arrows 9 and 10.
  • LIST OF REFERENCE NUMBERS 1 Ink transfer cylinder 2 Radial bearing of the ink transfer cylinder 3 Radial bearing of the ink transfer cylinder 4 Clutch / dog clutch 5 Air Cylinder 6 (second) clutch / dog clutch 7 Axial bearing / deep groove ball bearings 8th (Metal) bellows 9 arrow 10 arrow 11 driving range 12 Axial storage area 13 Piston of the air cylinder 14 Mobile bearing block 15 Bearing shells 15a, 15b of the bearing 7th 16 Ball of the camp 7 17 Ring of the camp 7 18 19 End-side spigot 20 Shaft piece of the drive 21 grab 22 roller body 23 Stock holding bush 24 storage 25 Arrow of the circular path 26 30 bearing head BS operator side AS driving side

Abstract

The printing unit has an ink transfer roller (1) comprising a roller body (22) to which end-sided pins (19) are connected. Each pin is rotatably supported in a bearing house by two radial bearings (2, 3). The bearing house is moved independently relative to a pneumatic cylinder (5) for engagement of the ink transfer roller at the pneumatic cylinder. A third bearing allows pivoting of the pins with respect to an axle, which runs perpendicular to an engagement direction of the ink transfer roller to the pneumatic cylinder.

Description

Die Erfindung betrifft ein Farb- oder Druckwerk einer Druckmaschine, welches eine Farbübertragungswalze umfasst, wenigstens bestehend aus einem Walzenkörper, an den sich endseitige Zapfen anschließen, wobei jeder Zapfen der Walze in jeweils einem Lagergehäuse des Farb- oder Druckwerks über zumindest ein Lager rotierbar gelagert ist, wobei die Lagergehäuse zur Anstellung der Farbübertragungswalze an einen weiteren Zylinder der Druckmaschine unabhängig voneinander relativ zu dem weiteren Zylinder bewegbar sind.The invention relates to a color or printing unit of a printing machine, which comprises a ink transfer roller, at least consisting of a roller body, connect to the end-side pin, each pin of the roller is rotatably mounted in each case a bearing housing of the color or printing unit via at least one bearing wherein the bearing housings for adjusting the ink transfer roller to a further cylinder of the printing press are independently movable relative to the further cylinder.

Um Farbübertragungswalzen von Druckmaschinen über ihre gesamte Länge gleichmäßig gegeneinander anstellen zu können, werden die endseitigen Lagerzapfen dieser Farbübertragungswalzen jeweils in unabhängig voneinander verschiebbaren Lagern gelagert.In order to make evenly against each other ink transfer rollers of printing presses over their entire length, the end-side journals of these ink transfer rollers are each stored in independently displaceable bearings.

Bei Farbübertragungswalzen kann es sich beim Flexodruck um Formatwalzen handeln, denen ein aus einer Hülse bestehender Klischeezylindermantel aufgeschoben werden kann, um möglichst schnell auf einen neuen Auftrag umrüsten zu können.In the case of ink transfer rollers, flexographic printing can be format rollers to which a cliché cylinder jacket consisting of a sleeve can be pushed in order to be able to convert to a new job as quickly as possible.

Im Offsetdruck stehen als Farbübertragungswalzen unter Anderem Gummituchzylinder zur Verfügung, die ein Druckbild, das ihnen von einem Druckform tragenden Zylinder vermittelt wurde übertragen. Natürlich übertragen auch die vorerwähnten Druckplattenzylinder Farbe.In offset printing are available as ink transfer rollers, among other blanket cylinder available that transmitted a printed image that was conveyed to them by a printing plate-bearing cylinder. Of course, the above-mentioned printing plate cylinder transfer color.

Im Tiefdruckverfahren ist als Farbübertragungswalze der Formzylinder zu nennen, in denen so genannte Näpfchen zur Farbübertragung eingraviert sind.In intaglio printing process is to be mentioned as a ink transfer roller of the forme cylinder, in which so-called wells are engraved for color transfer.

Die Patentanmeldung EP 1 852 256 A1 zeigt einen Formatzylinder einer Flexodruckmaschine, dessen endseitige Lagerzapfen in Wälzlagern, beispielsweise Nadellagern, gelagert sind. Die Wälzlager sind unabhängig voneinander bewegbar.The patent application EP 1 852 256 A1 shows a format cylinder of a flexographic printing machine whose end bearing journals are mounted in bearings, such as needle bearings. The bearings are independently movable.

Die Lager werden in Lageraufnahmen, beispielsweise in so genannten Lagergehäusen, gelagert. Als Lagergehäuse kann ein bewegbarer Lagerbock dienen, mit dessen Hilfe dann auch das Lager bewegbar ist.The bearings are stored in bearing receptacles, for example in so-called bearing housings. As a bearing housing can serve a movable bearing block, with the help of which then the bearing is movable.

Wenn die - oben erwähnten - Farbübertragungswalzen über ihre Länge ein unterschiedliches Farbübertragungsverhalten aufweisen, ist es notwendig, die Farbübertragungswalzen durch die unabhängig Bewegbarkeit ihrer endseitigen Lagerung unterschiedlich an die Gegenwalze (beispielsweise einem Gegendruckzylinder) anzustellen. Bei der vorerwähnten EP 1 852 256 A1 ist es beispielsweise möglich, die Lagerböcke unterschiedlich zu bewegen.When the ink transfer rollers mentioned above have different color transfer characteristics over their length, it is necessary to make the ink transfer rollers different from the counter roller (for example, an impression cylinder) due to the independent mobility of their end support. At the aforementioned EP 1 852 256 A1 For example, it is possible to move the bearing blocks differently.

Die Achsen der Lager des Farbübertragungszylinders auf der Antriebsseite und auf der Bedienseite fluchten als Folge eines solchen ungleichmäßigen Anstellprozesses nicht mehr.The axes of the bearings of the ink transfer cylinder on the drive side and on the operator side are no longer aligned as a result of such uneven Anstellprozesses.

Um die Farbübertragungszylinder der EP 1 852 256 A1 an einen Gegenzylinder anstellen zu können, befinden sich die Lager in beweglichen Lagerböcken. Im Flexodruck wird die Bewegbarkeit der Lagerböcke häufig durch Schienen, auf denen die Lagerböcke verfahrbar sind, bereitgestellt. Im Offsetdruck umfassen häufig so genannte Exzenter die Lager eines Farbübertragungszylinders.To the color transfer cylinder of the EP 1 852 256 A1 To be able to hire a counter-cylinder, the bearings are in movable bearing blocks. In flexographic printing, the mobility of the bearing blocks is often provided by rails on which the bearing blocks are movable. In offset printing, so-called eccentrics often include the bearings of a color transfer cylinder.

Insbesondere beim Flexodruckverfahren kann es vorkommen, dass die Klischeezylindermanteldicke über die Länge des Formatzylinders variiert, weil beispielsweise die Klebung des Klischeezylindermantels auf dem Formatzylinder ungleichmäßig ist oder der Klischeemantel einen Herstellungsfehler aufweist. Dadurch bekommt der Formatzylinder mit dem aufgezogenen Klischeemantel eine konische Form. Optimiert man in einer solchen Situation die Position der Formatzylinderböcke, so dass ein gleichmäßiger Druck über die gesamte Druckbreite zustande kommt fluchten die Achsen der Lager zu beiden Seiten des Formatzylinders nicht mehr.In particular in the case of the flexographic printing process, it is possible for the cliché jacket coat thickness to vary over the length of the format cylinder because, for example, the adhesion of the cliché coat jacket to the format cylinder is uneven or the cliché coat has a manufacturing defect. This gives the format cylinder with the mounted cliché a conical shape. Optimized in one In such a situation, the position of the format cylinder blocks, so that a uniform pressure over the entire printing width comes about, the axes of the bearings on both sides of the format cylinder are no longer aligned.

Liegen die endseitigen Lager eines Zylinders nicht mehr in einer Flucht, kann es zu einem "Verkanten" der Zapfen innerhalb der Lager bzw. zum Verkanten der Lagerschalen oder des Lagers innerhalb der Lageraufnahme kommen. Dies kann zu erhöhtem Verschleiß und damit zu außerplanmäßigen Maschinenstillständen führen.If the end-side bearings of a cylinder are no longer in alignment, there may be a "tilting" of the pins within the bearings or tilting of the bearing shells or of the bearing within the bearing receiver. This can lead to increased wear and thus unscheduled machine downtime.

Die Aufgabe der vorliegenden Erfindung ist es daher, eine Lagerung für einen Formatzylinder vorzuschlagen, welche die Nachteile des Standes der Technik verringert.The object of the present invention is therefore to propose a bearing for a format cylinder, which reduces the disadvantages of the prior art.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst.According to the invention, this object is solved by the features of the characterizing part of claim 1.

Demnach ist eine weitere Lagerung zumindest eines endseitigen Zapfens, welche eine Schwenkung zumindest eines Lagers bezüglich einer Achse, die senkrecht zur Anstellrichtung der Farbübertragungswalze zu dem weiteren Zylinder verläuft, ermöglicht.Accordingly, a further bearing at least one end-side pin, which allows a pivoting of at least one bearing with respect to an axis which is perpendicular to the Anstellrichtung the ink transfer roller to the other cylinder.

Die weitere Lagerung sollte zumindest eine Schwenkbarkeit des oder der betreffenden Lager bezüglich einer Achse, die senkrecht zur Anstellrichtung liegt, gewähren. Bei Flexodruckmaschinen gemäß der EP 1 852 256 A1 ist diese Achse senkrecht gegenüber der Ebene, die von der Anstellbewegung der Formatzylinder und dem Druckspalt aufgespannt wird.The further storage should at least provide a pivoting of the bearing or bearings with respect to an axis which is perpendicular to the Anstellrichtung. In flexographic printing machines according to the EP 1 852 256 A1 this axis is perpendicular to the plane which is spanned by the adjusting movement of the format cylinder and the pressure nip.

Vorteilhaft gegenüber dieser eingeschränkten Schwenkbarkeit ist, wenn eine Schwenkbarkeit der weiteren Lagerung bezüglich zumindest zweier Achsen gegeben ist. Dies wird als Schwenkbarkeit bezüglich einer Ebene bezeichnet. Eine große Schwenkbarkeit wird von Lagerungen gewährleistet, bei denen ein Lagerkopf in einem Ring gleitet. Hier besteht eine Analogie mit einigen Gelenken des menschlichen Körpers. Das von der Lagerstelle schwenkbar gestaltete Lager kann ein Lager sein, dass der Welle oder Achse, die es lagert eine axiale oder eine Bewegung in Umfangsrichtung gestattet. Ist in dem Farbwerk ein stärkerer Verschiebeantrieb zum Verschieben der farbübertragenden Walze vorgesehen, ist eine weitere Lagerung eines Axiallagers von besonderem Vorteil. Ein solches Axiallager ist oft Bestandteil einer Seitenregistervorrichtung, indem es Relativbewegungen zwischen Walzen und Wellen, die diese Walzen antreiben, zulässt. Durch ein solches Axiallager kann - gegebenenfalls - der Antriebsmotor einer solchen Walze bei einer Seitenregisterbewegung ortsfest verbleiben, was Vorteile hat.An advantage over this limited pivoting is when pivoting the further storage is given with respect to at least two axes. This is called pivoting with respect to a plane. A large pivoting is ensured by bearings in which a bearing head slides in a ring. Here is an analogy with some joints of the human body. The bearing pivotally designed by the bearing can be a bearing that the shaft or axle that supports it allows axial or circumferential movement. If a stronger displacement drive for moving the ink-transferring roller is provided in the inking unit, further storage of an axial bearing is of particular advantage. Such a thrust bearing is often part of a side register device by allowing relative movements between rollers and shafts that drive these rollers. By such a thrust bearing can - if necessary - the drive motor of such a roller remain stationary in a side register movement, which has advantages.

Auch in diesem Fall ist eine weitere Lagerung zur Schwenkung eines Lagers auf der Antriebsseite von Vorteil.Also in this case, another storage for pivoting a bearing on the drive side of advantage.

Bei dem axialen Lager handelt es sich vorteilhafterweise um ein axiales Rillenkugellager, dessen Lagerschalen über Kugeln zueinander verschiebbar sind, so dass eine Schrägstellung des Formatzylinders - ein so genannter Winkelfehler - ausgeglichen werden kann.The axial bearing is advantageously an axial deep groove ball bearing whose bearing shells are displaceable relative to each other via balls, so that an inclined position of the format cylinder - a so-called angular error - can be compensated.

In einer anderen bevorzugten Ausführungsform kann es sich bei dem zumindest einen Lager auch um ein radiales Lager handeln.In another preferred embodiment, the at least one bearing may also be a radial bearing.

Bei der Einrichtung zur Einstellung des Seitenregisters kann es sich beispielsweise um eine Spindelverstellung handeln, die motorisch angetrieben werden kann.The device for adjusting the side register can be, for example, a spindle adjustment, which can be driven by a motor.

Der Lagerbock, der das Lager umfasst, kann beispielsweise zur Seitenregistereinstellung eine Bohrung aufweisen, in die eine Hülse mit Außengewinde einführbar ist. Durch das motorische (rotationsförmige) Antreiben der Hülse, kann der Lagerbock, der beispielsweise auf Schienen gelagert ist, verfahren werden.The bearing block, which includes the bearing, for example, for side register adjustment have a bore into which a sleeve with an external thread is inserted. By the motor (rotation-shaped) driving the sleeve, the bearing block, which is for example mounted on rails, can be moved.

Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor. Figur 1 Eine Draufsicht einer beidseitigen Lagerung eines Farbübertragungszylinders Figur 2 Eine Vergrößerung der erfindungsgemäßen weiteren Lagerung aus Figur 1 Further embodiments of the invention will become apparent from the description and the claims. FIG. 1 A plan view of a two-sided storage of a color transfer cylinder FIG. 2 An enlargement of the further storage according to the invention FIG. 1

Die Figur 1 zeigt eine Draufsicht auf einen Farbübertragungszylinder in einem Farbwerk.The FIG. 1 shows a plan view of a color transfer cylinder in an inking unit.

Der zu wechselnde Farbübertragungszylinder 1 wird in nicht näher beschriebener Weise in ein Farb- oder Druckwerk einer ebenfalls zeichnerisch nicht dargestellten Druckmaschine, beispielsweise einer Flexodruckmaschine, gehoben bzw. eingebracht.The color transfer cylinder 1 to be changed is lifted or introduced in a manner not described in more detail in a color or printing unit of a printing machine, also not shown in the drawing, for example a flexographic printing press.

Der Farbübertragungszylinder 1 - beispielsweise der Formatzylinder einer Flexodruckmaschine - ist zwischen Bediener BS- und Antriebsseite AS jeweils in einem Radiallager 2 und 3 gelagert.The ink transfer cylinder 1 - for example, the format cylinder of a flexographic printing press - is mounted between operator BS and drive side AS each in a radial bearing 2 and 3.

Die endseitigen Wellenzapfen 19 der Farbübertragungswalze 1 umfassen formschlüssige Kupplungshälften. Auf der Bedienerseite BS umfasst der Kolben 13 einer Druckluftkolbenzylindereinheit 5, 13 endseitig eine zur Kupplungshälfte der Farbübertragungswalze korrespondierende Kupplungshälfte. Beide Kupplungshälften bilden die Kupplung 4. Antriebsseitig AS ist eine weitere Kupplungshälfte vorgesehen, die mit der Kupplungshälfte der Farbübertragungswalze korrespondiert. Beide Kupplungshälften bilden die Kupplung 6.The end-side shaft journals 19 of the ink transfer roller 1 comprise positive coupling halves. On the operator side BS, the piston 13 of a pneumatic piston-cylinder unit 5, 13 at the end comprises a coupling half corresponding to the coupling half of the ink transfer roller. Both coupling halves form the clutch 4. On the drive side AS, a further coupling half is provided, which corresponds to the coupling half of the ink transfer roller. Both coupling halves form the coupling 6.

Nachdem die Farbübertragungswalze 1 in das Druckwerk mithilfe einer nicht dargestellten Einrichtung in das Farb- oder Druckwerk eingebracht wurde, wird der Kolben 13 der Druckluftzylinderkolbeneinheit 5,13 entgegen der Richtung des Pfeils 9 bewegt und damit die Kupplungshälften der Kupplungen 4 und 6 formschlüssig verbunden. Die Kraft, die die Druckluftzylinderkolbeneinheit 5, 13 dabei auf die Kupplungen ausübt, ist konstant und so groß gewählt, dass die Formschlüssigkeit der Kupplungen 4 und 6 auch während des Druckbetriebes gewährleistet ist. Die Kraft kann je nach Druckgeschwindigkeit variiert werden. Die Lager, die den Format- bzw. Farbübertragungszylinder 1 lagern, sind in Lagerböcken 13 gelagert. Befinden sich bei den oben geschilderten Ankoppelvorgang die Lagerböcke 13, die beispielsweise auf Schienen verfahrbar sind, um den Formatzylinder an den Gegendruckzylinder anstellen zu können, nicht mehr in einer Flucht, so tritt ein so genanntes Verkanten des Zapfens des Format- oder Farbübertragungszylinders 1 unter anderem im axialen Lager 7 auf.After the ink transfer roller 1 has been introduced into the printing unit using a device, not shown in the color or printing unit, the piston 13 of the air cylinder piston unit 5,13 is moved counter to the direction of the arrow 9 and thus the coupling halves of the couplings 4 and 6 positively connected. The force exerted by the compressed-air cylinder piston unit 5, 13 on the clutches is constant and so large that the positive engagement of the clutches 4 and 6 is ensured even during the printing operation. The force can be varied depending on the printing speed. The bearings that store the format or color transfer cylinder 1 are stored in bearing blocks 13. Are in the coupling process described above, the bearing blocks 13, which are movable for example on rails to hire the format cylinder to the impression cylinder, no longer in alignment, so occurs a so-called tilting of the pin of the format or color transfer cylinder 1, among others in the axial bearing 7.

Auch wenn die verfahrbaren Lagerböcke in einer Flucht liegen, kann es durch einen ungleichmäßigen Klischeemantel (bzgl. seiner Dicke) zu einem Verkanten des Formatzylinderzapfens im Lager 7 kommen.Even if the moveable bearing blocks are in alignment, an uneven cliché jacket (with respect to its thickness) can lead to tilting of the format cylinder pin in the bearing 7.

Das axiale Lager 7 ist bildet eine bauliche Einheit mit der weiteren Lagerung 24: Das Axiallager 7 besteht aus Lagerschalen 15a, 15b, die über Kugeln 16 zueinander verschiebbar sind. Die Lagerschale 15b hat auch die Funktion eines Lagerkopfes 30, der in dem Ring 17 entlang des Kreisbogens 25 beweglich ist. Auf diese Weise führt eine Schräglage des Zylinderzapfens 19 des Formatzylinders 1 nicht zu einem Verkanten im Axiallager 7.The axial bearing 7 is a structural unit with the further storage 24: The thrust bearing 7 consists of bearing shells 15 a, 15 b, which are mutually displaceable by means of balls 16. The bearing shell 15b also has the function of a bearing head 30 which is movable in the ring 17 along the circular arc 25. In this way, an oblique position of the cylinder journal 19 of the format cylinder 1 does not lead to tilting in the axial bearing 7.

Bei dem axialen Lager handelt es sich vorteilhafterweise um ein axiales Rillenkugellager 7, dessen Lagerschalen 15a, 15b wie erwähnt über Kugeln 16 zueinander verschiebbar sind.The axial bearing is advantageously an axial deep groove ball bearing 7, whose bearing shells 15a, 15b, as mentioned, are displaceable relative to one another via balls 16.

Der oben dargestellte Aufbau bewirkt, dass - wenn bei einem Winkelfehler eines Format- bzw. Farbübertragungszylinders 1 eine Kraft ausgeübt wird, die von der Richtung der in Figur 2 eingezeichneten Kraft FL abweicht, die Lagerschale 15b in Richtung des Pfeils 25 bewegt wird.The structure described above has the effect that, when an angular error of a format or color transfer cylinder 1, a force is exerted by the direction of the in FIG. 2 drawn force F L deviates, the bearing shell 15b is moved in the direction of arrow 25.

Der dargestellte integrierte Aufbau der weiteren Lagerung 24 und des Axiallagers 7 in einem integrierten Bauteil, das lediglich drei ringförmige Komponenten (15a,15b,17) aufweist, die gegeneinander beweglich sind, ist sehr vorteilhaft.The illustrated integrated construction of the further bearing 24 and the axial bearing 7 in an integrated component, which has only three annular components (15a, 15b, 17) which are movable relative to one another, is very advantageous.

Zwischen der weiteren Lagerstelle 24 und dem nicht dargestellten Antrieb der farbübertragenden Walze 1 befindet sich ein Wellenbalg 8, beispielsweise ein Metallwellenbalg, der den Winkelfehler (auch axialer Versatz des Zylinders 1 genannt), den die Schrägstellung des Formatzylinders 1 auf das axiale Lager 7 überträgt, ausgleichen kann. Ein weiterer Vorteil des Wellenbalges 8 ist, dass dieser sehr torsionssteif ist.Between the further bearing point 24 and the drive of the ink-transferring roller 1, not shown, there is a corrugated bellows 8, for example a metal shaft bellows, which transmits the angular error (also called axial offset of the cylinder 1), which the oblique position of the format cylinder 1 transfers to the axial bearing 7, can compensate. Another advantage of the bellows 8 is that it is very torsionally stiff.

Bei einem Auftrag- oder Formatwechsel wird der Kolben 13 des Druckluftzylinders 5 in Richtung des Pfeils 9 verfahren und die Klauenkupplung 4 vom Zylinder 1 gelöst. Gleichzeitig wird - mit einer in der Figur 1 nicht dargestellten Vorrichtung - der Antriebsbereich 11 in Richtung des Pfeils 10 verfahren und damit die Kupplungshälften der Klauenkupplung 6 voneinander getrennt. Jetzt kann der Farbübertragungszylinder 1 - mit einer in der Figur 1 nicht dargestellten Vorrichtung - aus der Druckmaschine entfernt - beispielsweise herausgehoben - werden.In an order or format change the piston 13 of the air cylinder 5 is moved in the direction of arrow 9 and the jaw clutch 4 released from the cylinder 1. At the same time - with one in the FIG. 1 not shown device - the drive portion 11 in the direction of arrow 10 and thus the coupling halves of the dog clutch 6 separated from each other. Now, the ink transfer cylinder 1 - with a in the FIG. 1 not shown device - removed from the printing press - for example, lifted out - are.

Im Druckbetrieb können die Klauenkupplungen von dem Druckluftzylinder 5 mit einer Kraft beaufschlagt werden, um die Kupplung in Arbeitsposition zu halten. Ist dies der Fall, so wirken über längere Zeit größere Kräfte auf das Axiallager 7. Umstände dieser Art verstärken die Vorteile der vorliegenden Erfindung.In the printing operation, the jaw clutches can be acted upon by the pneumatic cylinder 5 with a force to keep the clutch in working position. If this is the case, larger forces act on the axial bearing 7 over a longer period of time. Circumstances of this type reinforce the advantages of the present invention.

Um das Seitenregister in der Druckmaschine einzustellen, kann der Bereich 12, der die axiale Lagerung 7 umfasst, mithilfe einer hier nicht gezeigten Spindelverstellung in Richtung der Pfeile 9 und 10 bewegt werden. Bezugszeichenliste 1 Farbübertragungszylinder 2 Radiallager des Farbübertragungszylinders 3 Radiallager des Farbübertragungszylinders 4 Kupplung / Klauenkupplung 5 Druckluftzylinder 6 (zweite) Kupplung / Klauenkupplung 7 Axiales Lager /Rillenkugellager 8 (Metall)Wellenbalg 9 Pfeil 10 Pfeil 11 Antriebsbereich 12 Axialer Lagerbereich 13 Kolben des Druckluftzylinders 14 Beweglicher Lagerbock 15 Lagerschalen 15a , 15b des Lagers 7 16 Kugel des Lagers 7 17 Ring des Lagers 7 18 19 Endseitiger Zapfen 20 Wellenstück des Antriebes 21 Greifer 22 Walzenkörper 23 Lagerhaltebuchse 24 Lagerung 25 Pfeil der Kreisbahn 26 30 Lagerkopf BS Bedienerseite AS Antriebsseite To set the page register in the printing press, the area 12, which includes the axial bearing 7, can be moved by means of a spindle adjustment, not shown here in the direction of arrows 9 and 10. LIST OF REFERENCE NUMBERS 1 Ink transfer cylinder 2 Radial bearing of the ink transfer cylinder 3 Radial bearing of the ink transfer cylinder 4 Clutch / dog clutch 5 Air Cylinder 6 (second) clutch / dog clutch 7 Axial bearing / deep groove ball bearings 8th (Metal) bellows 9 arrow 10 arrow 11 driving range 12 Axial storage area 13 Piston of the air cylinder 14 Mobile bearing block 15 Bearing shells 15a, 15b of the bearing 7th 16 Ball of the camp 7 17 Ring of the camp 7 18 19 End-side spigot 20 Shaft piece of the drive 21 grab 22 roller body 23 Stock holding bush 24 storage 25 Arrow of the circular path 26 30 bearing head BS operator side AS driving side

Claims (9)

  1. Inking or printing unit of a printing press,
    - which inking or printing unit comprises an ink transfer roll (1) which comprises a roll body which is adjoined by end-side journals,
    - each journal of the roll being mounted rotatably via at least one bearing (2, 3, 7) in in each case one bearing housing of the inking or printing unit,
    - and it being possible for the bearing housings to be moved independently of one another relative to a further cylinder for setting the ink transfer roll (1) against the further cylinder of the printing press,
    characterized by
    a further mounting (24) of at least one end-side journal, which further mounting (24) makes pivoting possible of at least one bearing (2, 3, 7) with regard to an axis which extends to the further cylinder perpendicularly with respect to the throwing-on direction of the ink transfer roll.
  2. Inking or printing unit according to the preceding claim, characterized in that
    - the further mounting (24) comprises at least one ring (17),
    - which ring (17) encloses a bearing head (30),
    - the ring and the bearing head (30) being displaceable relative to one another along a circular track (25).
  3. Inking or printing unit according to the preceding claims, characterized in that the outer surface of the bearing head (30) is arched to the outside and is inserted into the ring (17), the inner surface of which is arched to the inside.
  4. Inking or printing unit according to one of the preceding claims, characterized in that the at least one bearing (2, 3, 7) is a radial bearing.
  5. Inking or printing unit according to one of the preceding claims, characterized in that the at least one bearing (2, 3, 7) is an axial bearing (7).
  6. Inking or printing unit according to the preceding claim, characterized in that the ink transfer roll (1) can be displaced in the axial direction against an axial bearing (7) by means of a displacement drive (5, 13).
  7. Inking or printing unit according to one of the two preceding claims, characterized in that the axial bearing (7) is a constituent part of a system for setting the lateral register of the ink transfer roll.
  8. Inking or printing unit according to one of the preceding claims, characterized in that the mounting is provided on the drive side (AS) of the ink transfer roll (1).
  9. Inking or printing unit according to one of the preceding claims, characterized in that the mounting (24) mounts at least one bearing (7) pivotably, in which a shaft is mounted which transmits torque to a shaft journal of the ink transfer roll (1).
EP09007037A 2008-05-29 2009-05-27 Inking or printing unit of a printing press Active EP2127871B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008025997A DE102008025997B4 (en) 2008-05-29 2008-05-29 Color or printing unit of a printing press

Publications (2)

Publication Number Publication Date
EP2127871A1 EP2127871A1 (en) 2009-12-02
EP2127871B1 true EP2127871B1 (en) 2011-05-04

Family

ID=41010231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09007037A Active EP2127871B1 (en) 2008-05-29 2009-05-27 Inking or printing unit of a printing press

Country Status (4)

Country Link
EP (1) EP2127871B1 (en)
AT (1) ATE507970T1 (en)
DE (2) DE102008025997B4 (en)
ES (1) ES2363060T3 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH685019A5 (en) * 1991-11-21 1995-02-28 Daverio Ag Bearing assembly with a radial bearing.
DE19624393A1 (en) * 1996-06-19 1998-01-02 Roland Man Druckmasch Overhead mounted printing unit cylinders
DE29615110U1 (en) * 1996-08-30 1996-10-31 Goebel Gmbh Maschf Storage facility
ATE310639T1 (en) * 1999-10-01 2005-12-15 Koenig & Bauer Ag SHORT COLOR WORK
DE10045146A1 (en) * 2000-09-13 2002-05-23 Ina Schaeffler Kg Bearing for cylinders or drums in printing machines
DE10145322A1 (en) * 2001-09-14 2003-04-03 Ina Schaeffler Kg Bearing arrangement for cylinders, rollers or drums
DE10145321A1 (en) * 2001-09-14 2003-04-03 Ina Schaeffler Kg Bearing unit including rotating bearing has rotating bearing in bearing housing able to be displaced relative to mounting wall
DE102006020957A1 (en) 2006-05-05 2007-11-08 Schaeffler Kg flexographic printing

Also Published As

Publication number Publication date
DE102008025997B4 (en) 2012-10-04
EP2127871A1 (en) 2009-12-02
DE502009000615D1 (en) 2011-06-16
DE102008025997A1 (en) 2009-12-24
ATE507970T1 (en) 2011-05-15
ES2363060T3 (en) 2011-07-19

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