EP2015938B1 - Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller - Google Patents

Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller Download PDF

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Publication number
EP2015938B1
EP2015938B1 EP07728598A EP07728598A EP2015938B1 EP 2015938 B1 EP2015938 B1 EP 2015938B1 EP 07728598 A EP07728598 A EP 07728598A EP 07728598 A EP07728598 A EP 07728598A EP 2015938 B1 EP2015938 B1 EP 2015938B1
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EP
European Patent Office
Prior art keywords
roller
roller according
pump
fixed shaft
drive
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Not-in-force
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EP07728598A
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German (de)
French (fr)
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EP2015938A2 (en
Inventor
Volker Gerold Rauh
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication of EP2015938A2 publication Critical patent/EP2015938A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking rollers

Definitions

  • the invention relates to a roller for a printing machine with a device for generating an axial oscillatory movement of the rotating roller according to the preamble of claim 1.
  • the invention relates to such devices in the context of Verreibwalzen a color or dampening of a printing press.
  • the rotational drive of such rolls is usually carried out by frictional engagement with an adjacent roll or an adjacent cylinder, which is driven directly or indirectly via the machine drive.
  • Verreibwalze is known, wherein an external power source is provided in particular in the form of a piston / cylinder unit for the reciprocating movement.
  • the Verreibwalze may have in its interior two pressure chambers through the differential pressure, the reciprocating movement of the Verreibwalze.
  • compressed air is provided, which is generated by an external compressor.
  • Another device for generating axial movements of the Verreibwalzen of inking and dampening of printing presses is from the DE-OS 2 235 313 known.
  • an external double-acting cylinder is provided, the piston forms a leg of Verreibwalze.
  • the hydraulic fluid is fed as working fluid alternately to the pressure chambers of the cylinder.
  • the hydraulic oil is stored in an external oil reservoir.
  • a self-oscillating roller assembly is known, wherein working fluid from an external compressed air source via a timer-controlled external switching valve is supplied alternately oppositely acting pressure chambers.
  • the DE 36 20 423 A1 describes various types of drives for the axial movement of oscillating rollers.
  • the roller is moved by means of a pressure medium system, wherein the pressure medium supply is arranged outside the roller.
  • the axial movement is generated by means of a mechanical transmission.
  • the DE 10 2005 019 266 A1 discloses a drive for a paint roller of a printing press.
  • the drive has a hydraulically actuated lifting cylinder, which shifts the roller oscillating in the axial direction.
  • the associated pressure medium supply by means of a pump.
  • the invention has for its object to provide a roller of a printing machine with a device for generating an axial oscillatory movement of the rotating roller.
  • the drive energy can be derived in many ways from the rotation of the roller, in particular, for example, also by magnetic or electromagnetic means.
  • the motor drive comprises a drive wheel, in particular arranged in the interior of the roller, which can be driven by the rotating roller and, in particular, can be in frictional or positive connection with it.
  • the drive wheel is in drive connection with a cylindrical roller shell of the roller.
  • the axial oscillatory movement could in principle be effected in a variety of ways, for example via an electromagnetic drive and a suitable transmission. However, it is preferred if the oscillatory movement can be effected by alternating supply of a working fluid in pressure chambers which are effective in respectively opposite axial direction.
  • the pressure chambers can in this case be doubled acting cylinder may be formed, which is arranged in the interior of the roller, either as a separate component or defined for example by the inner walls of the roll shell.
  • the motor drive comprises a pumping device which puts the working fluid under working pressure and which is connected to the drive wheel and thus actuated by the latter.
  • This pump device is also preferably arranged in the interior of the roller.
  • a switching valve is expediently provided, which is also preferably arranged in the interior of the roller.
  • the motor drive can work in particular hydraulically or possibly also pneumatically.
  • a reservoir for hydraulic fluid may be provided which is preferably also disposed in the interior of the roller and in particular may be in communication with the pump device via the changeover valve.
  • a pneumatic drive in particular air can be used as the working fluid.
  • the basic construction of the roller could be e.g. be such that the roller has a cylindrical roll shell which is rotatably mounted on a non-rotatable, but slidably mounted in the axial direction shaft.
  • the structure is such that the roller has a cylindrical roller shell, which is rotatable relative to a fixed shaft, wherein the cylindrical roller shell in addition to a non-rotatably on the fixed shaft, but slidably mounted in the axial direction carriage along the fixed shaft and is slidably mounted ago.
  • the arrangement of the individual drive components preferably within the roller so that the cylinder / piston arrangement acts between the shaft and the carriage, that the pump device together with the drive wheel and possibly together with reservoir are preferably mounted on the fixed shaft, but possibly also on the carriage, and that the switching valve is preferably arranged either on the fixed shaft or optionally also on the carriage such that the switching valve is switchable due to a relative movement between the fixed shaft and the carriage.
  • the device according to the invention enables a compact and insensitive construction of a motor-driven distribution roller, which is inexpensive to produce and requires no external drive components.
  • the risk of damage, in particular with regard to consequential damage due to a blocking roller is comparatively low and due to a pressure limiting of the pump device is an automatic overload protection.
  • the invention provides increased flexibility, after variable Abreibhübe be reached by changing the stop for the switching valve.
  • the optionally adjustable delivery rate of the pump device determines the Verreibfrequenz.
  • the drive according to the invention can be easily adapted to different roller dimensions.
  • the roller 01 of the invention for example, a Verreibwalze 01 of an inking unit or dampening unit of a printing press, not shown, comprising a fixed shaft 02 with an axis 03.
  • a carriage 04 is by means of suitable bearings 05 on the shaft 02 in the direction of Axis 03 displaceable, but guided against rotation.
  • the twist resistance of the guide is in Fig. 1 indicated by a bolt 06 fixed in the shaft 02, which engages in a slot 07 or a slot 07 in the carriage 04;
  • the rotation could be ensured in other ways, for example via a suitable, for example, polygonal cross-section of the shaft 02 and a correspondingly adapted guide cross section of the carriage 04 and the bearing 05th
  • a cylindrical roller shell 08 of the roller 01 is supported by bearings 09 on the carriage 04 for free rotation in both directions of rotation.
  • the roller shell 08 of the roller 01 is thus on the one hand rotatable about the axis 03 and on the other hand slidably mounted along the axis 03.
  • the roller 01 or Verreibwalze 01 on an adjacent, during operation rotatably driven roller or a rotationally driven cylinder (not shown) abut and be set by this or this in rotation.
  • a device to be described below is provided to move the roller 01 during its rotation back and forth, so the roller 01 at the same time to convey an axial oscillatory motion, for example, to a uniform To achieve distribution of printing ink.
  • a pump device 11 namely a pump 11, in particular a miniature pump 11 is attached to hydraulic fluid, which is driven by means of a drive wheel 12 which abuts with its circumference on the inside of the roll shell 08 and of the stationary or stationary shaft 02 this is frictionally driven.
  • the pump 11 delivers regardless of the direction of rotation of the drive wheel 12 and the rotational direction of the roll shell 08.
  • the reference numeral 13 denotes a reservoir for hydraulic fluid, which is also mounted on the fixed shaft 02 and the pump 11, a common housing ( Fig. 1 ) or outside the housing, for. B. in a shaft (02) can be arranged ( Fig. 3 ).
  • a cylinder / piston arrangement 14 comprises a double-acting cylinder 16 with two pressure chambers 17 and 18, which are separated from each other by the piston 19 and each have a connection for a hydraulic line 32 and 33, cf. Fig. 2 ,
  • the one end of the cylinder 16 is connected via an angular support 22 with the fixed shaft 02, while at the opposite end of the cylinder 16, the piston 19 associated with the piston rod 21 exits from the cylinder 16 and is connected to the carriage 04.
  • the cylinder / piston assembly 14 is arranged so that the arrangement of the cylinder / piston assembly 14, the pump device 11 generates an oscillating movement in the axial direction of a longitudinal axis of the roller 01.
  • the switching valve 23 is designed as z. B.
  • Directional valve 23 is formed and includes a central displaceable switching portion 24 which is adjustable between two functional positions and for this purpose during the axial displacement of the carriage 04, i. at the respective end portions of the axial displacement, with its one protruding end 26 with a stop surface 28 of a stop 04 fixed to the carriage 04 or with its other projecting end 27 with an opposite stop surface 31 of the carriage 04 comes into engagement.
  • the switching valve 23 may be formed as a pressure valve, which is switchable in dependence of the pressure in the chambers 17, 18 of the cylinder 16 existing pressure.
  • the switching valve 23 is thus in the possibly defined by suitable stops and possibly also adjustable end positions of the carriage 04, the working direction of the cylinder / piston assembly 14 is reversed.
  • a detent be provided for example by means of a ball, by which a neutral position is excluded, in which the two working directions block each other.
  • a pneumatic system is provided instead of the described hydraulic system, in particular air can be used as the working fluid.
  • a reservoir for the working fluid is unnecessary in this case.
  • a compressed air supply possibly via a plug connection from the outside by corresponding holes in the fixed shaft 02 through done.
  • the pump device 11 can in principle also be mounted externally, ie for example outside the roller shell 08 on the stationary shaft 02.
  • the supply lines can be guided through the stationary shaft 02 into the interior of the roller 01 in this case
  • the cylinder 16 could be mounted externally, as well as the reservoir 13 and / or the changeover valve 23.
  • An external arrangement of these components may allow their common use for multiple rolls. Also is in an external arrangement, any adjustment or subsequent adjustment of operating parameters easier, for example, the adjustment of the friction frequency. Also, a control of the friction frequency is independent of the engine speed possible.
  • the pump 11 is preferably designed as an axial piston pump, which has at least one piston 38.
  • a plurality of pistons 38 are arranged rotationally symmetrical to the shaft 02 of the roller 01.
  • a longitudinal axis of the piston 38 is preferably arranged parallel to the shaft 02 or the roller 01.
  • the piston housing of the pump 11 is fixed, preferably frictionally engaged, in particular by means of a clamping set with the shaft 02.
  • a preferably circumferential contact surface 39 is provided, whose plane with the longitudinal axis of the shaft 02 has an opening angle ⁇ not equal to 90 ° and not equal to 180 °.
  • the contact surface 39 is inclined to a vertical plane 41 with z. B. an opening angle ⁇ of 3 ° to 20 °.
  • This contact surface 39 rotates with the roll shell 08 and is preferably frictionally z. B. connected by means of a clamping set with the roll shell 08.
  • the roller 01 may be formed, for example, as a directly cooperating with an inking roller 42 friction roller 43.
  • the inking roller 42 and / or the dampening roller 46 is directly in contact with a forme cylinder 44.
  • the roller 01 may be formed as an inking roller 42 or dampening roller 46. It is also possible to form the roller as an intermediate roller 47 of a dampening unit. This intermediate roller 47 preferably interacts directly with the dampening roller 46.
  • the drive of the roller 01 in particular of the roller shell 08, takes place, for example, exclusively by frictional engagement of a roller directly interacting with the roller 01 or a forme cylinder 44.
  • the drive of the pump 11 therefore takes place outside the roller 01 exclusively by a frictionally engaged drive through the directly interacting roller Roller or the directly cooperating form cylinder 44th

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Friction Gearing (AREA)
  • Printing Methods (AREA)

Abstract

A roller of a printing machine includes a device for use in the generation of an axial oscillating movement of the rotating roller. The device includes a drive that is comprised of a pump which pressurizes a working fluid. The pump is arranged inside of the roller.

Description

Die Erfindung betrifft eine Walze für eine Druckmaschine mit einer Vorrichtung zum Erzeugen einer axialen Oszillationsbewegung der rotierenden Walze gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a roller for a printing machine with a device for generating an axial oscillatory movement of the rotating roller according to the preamble of claim 1.

Insbesondere bezieht sich die Erfindung auf solche Vorrichtungen im Zusammenhang mit Verreibwalzen eines Farb- oder Feuchtwerks einer Druckmaschine. Der Rotationsantrieb solcher Walzen erfolgt in der Regel durch Reibschluss mit einer benachbarten Walze oder einem benachbarten Zylinder, die bzw. der direkt oder indirekt über den Maschinenantrieb angetrieben ist.In particular, the invention relates to such devices in the context of Verreibwalzen a color or dampening of a printing press. The rotational drive of such rolls is usually carried out by frictional engagement with an adjacent roll or an adjacent cylinder, which is driven directly or indirectly via the machine drive.

Aus der DE 196 03 765 A1 ist eine solche Vorrichtung zum axialen Hin- und Herbewegen einer Verreibwalze bekannt, wobei eine externe Energiequelle insbesondere in Form einer Kolben-/Zylindereinheit für die Hin- und Herbewegung vorgesehen ist. Gemäß einem Ausführungsbeispiel kann die Verreibwalze in ihrem Inneren zwei Druckräume aufweisen, durch deren Differenzdruckbeaufschlagung die Hin- und Herbewegung der Verreibwalze erfolgt. Als Arbeitsmedium ist hierbei Druckluft vorgesehen, die von einem externen Kompressor erzeugt wird.From the DE 196 03 765 A1 Such a device for axially reciprocating a Verreibwalze is known, wherein an external power source is provided in particular in the form of a piston / cylinder unit for the reciprocating movement. According to one embodiment, the Verreibwalze may have in its interior two pressure chambers through the differential pressure, the reciprocating movement of the Verreibwalze. As a working medium in this case compressed air is provided, which is generated by an external compressor.

Eine weitere Vorrichtung zum Erzeugen von axialen Bewegungen der Verreibwalzen von Farb- und Feuchtwerken von Druckmaschinen ist aus der DE-OS 2 235 313 bekannt. Hier ist ein externer doppeltwirkender Zylinder vorgesehen, dessen Kolben einen Schenkel der Verreibwalze bildet. Über einen externen Hydraulikantrieb und ein externes Umschaltventil wird den Druckräumen des Zylinders alternierend das Hydrauliköl als Arbeitsfluid zugeführt. Das Hydrauliköl wird in einem externen Ölbehälter gespeichert. Schließlich ist aus der US 5,329,851 A eine selbst-oszillierende Walzenanordnung bekannt, wobei Arbeitsfluid aus einer externen Druckluftquelle über ein Timer-gesteuertes externes Umschaltventil alternierend entgegengesetzt wirkenden Druckräumen zugeführt wird.Another device for generating axial movements of the Verreibwalzen of inking and dampening of printing presses is from the DE-OS 2 235 313 known. Here, an external double-acting cylinder is provided, the piston forms a leg of Verreibwalze. Via an external hydraulic drive and an external changeover valve, the hydraulic fluid is fed as working fluid alternately to the pressure chambers of the cylinder. The hydraulic oil is stored in an external oil reservoir. Finally, out of the US 5,329,851 A a self-oscillating roller assembly is known, wherein working fluid from an external compressed air source via a timer-controlled external switching valve is supplied alternately oppositely acting pressure chambers.

Es ist auch bekannt, im Gegensatz zu den im Vorstehenden erläuterten motorischen Antrieben einen rein mechanischen, selbst antreibenden Antrieb für die axiale Oszillationsbewegung vorzusehen, vgl. beispielsweise DE 29 31 141 C3 . Die dort offenbarte Vorrichtung erhält ihren Antrieb von der Drehbewegung des Walzenmantels, wobei die Reibbewegung über eine Kugel und eine nicht drehbar gelagerte Buchse erzeugt wird, die eine schräg verlaufende Nut aufweist, zwischen der und einer zweiten, senkrecht zur Mittelachse der Verreibwalze verlaufenden Nut in einer im Walzenmantel fest angeordneten Buchse die Kugel abrollt. Bei solchen Walzen mit mechanischen Reibgetrieben besteht die Gefahr von blockierenden Walzen, was zusätzlich zu beträchtlichen Folgeschäden führen kann. Darüber hinaus ist es nicht möglich, die Verreibfrequenz, die durch die baulichen Gegebenheiten fest vorgegeben ist, zu variieren.It is also known, in contrast to the above-described motor drives to provide a purely mechanical, self-propelling drive for the axial oscillation movement, see. for example DE 29 31 141 C3 , The disclosed there device receives its drive from the rotational movement of the roll shell, wherein the rubbing motion is generated by a ball and a non-rotatably mounted bush having a slanted groove, between the and a second, perpendicular to the central axis of the Verreibwalze groove in one in the roll shell firmly arranged bushing rolls off the ball. In such rollers with mechanical friction gears there is a risk of blocking rollers, which can also lead to considerable consequential damage. In addition, it is not possible to vary the Verreibfrequenz that is fixed by the structural conditions fixed.

Die DE 36 20 423 A1 beschreibt verschiedene Ausführungen von Antrieben für die axiale Bewegung von oszillierenden Walzen. In einer Ausführung wird mittels eines Druckmittelsystems die Walze bewegt, wobei die Druckmittelversorgung außerhalb der Walze angeordnet ist. In einer anderen Ausführung wird mittels eines mechanischen Getriebes die Axialbewegung erzeugt.The DE 36 20 423 A1 describes various types of drives for the axial movement of oscillating rollers. In one embodiment, the roller is moved by means of a pressure medium system, wherein the pressure medium supply is arranged outside the roller. In another embodiment, the axial movement is generated by means of a mechanical transmission.

Die DE 10 2005 019 266 A1 offenbart einen Antrieb für eine Farbwalze einer Druckmaschine. Der Antrieb weist einen hydraulisch betätigbaren Hubzylinder auf, der die Walze oszillierend in Axialrichtung verschiebt. Die zugehörige Druckmittelzufuhr erfolgt mittels einer Pumpe.The DE 10 2005 019 266 A1 discloses a drive for a paint roller of a printing press. The drive has a hydraulically actuated lifting cylinder, which shifts the roller oscillating in the axial direction. The associated pressure medium supply by means of a pump.

Der Erfindung liegt die Aufgabe zugrunde, eine Walze einer Druckmaschine mit einer Vorrichtung zum Erzeugen einer axialen Oszillationsbewegung der rotierenden Walze zu schaffen.The invention has for its object to provide a roller of a printing machine with a device for generating an axial oscillatory movement of the rotating roller.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass eine vollkommen autarke Walze bzw. Verreibwalze geschaffen wird, die nicht von zusätzlichen Versorgungs- und/oder Steuereinheiten abhängig ist. Dennoch muss für den axialen Antrieb nicht auf mechanische Getriebe mit den oben geschilderten bekannten Nachteilen zurückgegriffen werden.The achievable with the invention advantages are in particular that a completely self-sufficient roller or Verreibwalze is created, which is not dependent on additional supply and / or control units. Nevertheless, it is not necessary to resort to mechanical transmissions with the above-described known disadvantages for the axial drive.

Besonders vorteilhaft ist es, wenn der motorische Antrieb vollständig im Inneren der Walze angeordnet ist, wodurch der Aufbau besonders kompakt wird und der Antrieb bzw. dessen Bauteile vor Beschädigungen geschützt sind.It when the motor drive is arranged completely inside the roller, whereby the structure is particularly compact and the drive or its components are protected from damage is particularly advantageous.

Die Antriebsenergie kann grundsätzlich auf vielfältige Weise von der Rotation der Walze abgeleitet werde, insbesondere beispielsweise auch auf magnetischem oder elektromagnetischem Weg. Bevorzugt ist jedoch vorgesehen, dass der motorische Antrieb ein insbesondere im Inneren der Walze angeordnetes Antriebsrad umfasst, welches von der rotierenden Walze antreibbar ist und insbesondere mit dieser reib- oder formschlüssig in Verbindung stehen kann. Im Einzelnen ist zweckmäßigerweise vorgesehen, dass das Antriebsrad mit einem zylindrischen Walzenmantel der Walze in Antriebsverbindung steht.In principle, the drive energy can be derived in many ways from the rotation of the roller, in particular, for example, also by magnetic or electromagnetic means. Preferably, however, it is provided that the motor drive comprises a drive wheel, in particular arranged in the interior of the roller, which can be driven by the rotating roller and, in particular, can be in frictional or positive connection with it. Specifically, it is expediently provided that the drive wheel is in drive connection with a cylindrical roller shell of the roller.

Auch die axiale Oszillationsbewegung könnte grundsätzlich auf vielfältige Weise bewirkt werden, beispielsweise über einen elektromagnetischen Antrieb und ein geeignetes Getriebe. Bevorzugt ist jedoch, wenn die Oszillationsbewegung durch alternierende Zufuhr eines Arbeitsfluids in in jeweils entgegengesetzter axialer Richtung wirksame Druckkammern bewirkbar ist.. Die Druckkammern können hierbei von einem doppelt wirkenden Zylinder gebildet sein, der im Inneren der Walze angeordnet ist, entweder als separates Bauteil oder definiert z.B. durch die Innenwandungen des Walzenmantels.The axial oscillatory movement could in principle be effected in a variety of ways, for example via an electromagnetic drive and a suitable transmission. However, it is preferred if the oscillatory movement can be effected by alternating supply of a working fluid in pressure chambers which are effective in respectively opposite axial direction. The pressure chambers can in this case be doubled acting cylinder may be formed, which is arranged in the interior of the roller, either as a separate component or defined for example by the inner walls of the roll shell.

Gemäß einem besonders bevorzugten Merkmal der Erfindung ist vorgesehen, dass der motorische Antrieb eine das Arbeitsfluid unter Arbeitsdruck setzende Pumpeneinrichtung umfasst, die mit dem Antriebsrad verbunden ist und somit von diesem betätigt wird. Diese Pumpeneinrichtung ist ebenfalls vorzugsweise im Inneren der Walze angeordnet.According to a particularly preferred feature of the invention, it is provided that the motor drive comprises a pumping device which puts the working fluid under working pressure and which is connected to the drive wheel and thus actuated by the latter. This pump device is also preferably arranged in the interior of the roller.

Zum alternierenden Zuführen von Arbeitsfluid zu der einen oder zu der anderen Druckkammer ist zweckmäßigerweise ein Umschaltventil vorgesehen, das ebenfalls vorzugsweise im Inneren der Walze angeordnet ist.For alternately supplying working fluid to one or the other pressure chamber, a switching valve is expediently provided, which is also preferably arranged in the interior of the roller.

Der motorische Antrieb kann insbesondere hydraulisch oder ggf. auch pneumatisch arbeiten. Im Falle eines hydraulischen Antriebs kann ein Vorratsbehälter für Hydraulikflüssigkeit vorgesehen sein, der vorzugsweise ebenfalls im Inneren der Walze angeordnet ist und insbesondere über das Umschaltventil mit der Pumpeneinrichtung in Verbindung stehen kann. Im Falle eines pneumatischen Antriebs kann als Arbeitsfluid insbesondere Luft verwendet werden.The motor drive can work in particular hydraulically or possibly also pneumatically. In the case of a hydraulic drive, a reservoir for hydraulic fluid may be provided which is preferably also disposed in the interior of the roller and in particular may be in communication with the pump device via the changeover valve. In the case of a pneumatic drive, in particular air can be used as the working fluid.

Der grundsätzliche Aufbau der Walze bzw. Verreibwalze könnte z.B. so sein, dass die Walze einen zylindrischen Walzenmantel aufweist, der an einer nicht rotierbar, aber in axialer Richtung verschieblich gelagerten Welle rotierbar gelagert ist. Vorzugsweise ist der Aufbau jedoch so, dass die Walze einen zylindrischen Walzenmantel aufweist, der relativ zu einer feststehenden Welle rotierbar ist, wobei der zylindrische Walzenmantel zusätzlich über einen an der feststehenden Welle drehfest, jedoch in axialer Richtung verschieblich gelagerten Schlitten entlang der feststehenden Welle hin und her verschiebbar gelagert ist.The basic construction of the roller could be e.g. be such that the roller has a cylindrical roll shell which is rotatably mounted on a non-rotatable, but slidably mounted in the axial direction shaft. Preferably, however, the structure is such that the roller has a cylindrical roller shell, which is rotatable relative to a fixed shaft, wherein the cylindrical roller shell in addition to a non-rotatably on the fixed shaft, but slidably mounted in the axial direction carriage along the fixed shaft and is slidably mounted ago.

Bei einem solchen Aufbau ist die Anordnung der einzelnen Antriebskomponenten innerhalb der Walze vorzugsweise so, dass die Zylinder-/Kolben-Anordnung zwischen der Welle und dem Schlitten wirkt, dass die Pumpeneinrichtung samt Antriebsrad und ggf. samt Vorratsbehälter vorzugsweise auf der feststehenden Welle, ggf. jedoch auch auf dem Schlitten befestigt sind, und dass das Umschaltventil entweder vorzugsweise auf der feststehenden Welle oder ggf. auch auf dem Schlitten angeordnet ist derart, dass das Umschaltventil aufgrund einer Relativbewegung zwischen der feststehenden Welle und dem Schlitten umschaltbar ist.In such a structure, the arrangement of the individual drive components preferably within the roller so that the cylinder / piston arrangement acts between the shaft and the carriage, that the pump device together with the drive wheel and possibly together with reservoir are preferably mounted on the fixed shaft, but possibly also on the carriage, and that the switching valve is preferably arranged either on the fixed shaft or optionally also on the carriage such that the switching valve is switchable due to a relative movement between the fixed shaft and the carriage.

Die erfindungsgemäße Vorrichtung ermöglicht eine kompakte und unempfindliche Bauweise einer motorisch angetriebenen Verreibwalze, die kostengünstig herstellbar ist und keinerlei externe Antriebskomponenten benötigt. Das Schadensrisiko insbesondere in Bezug auf Folgeschäden aufgrund einer blockierenden Walze ist vergleichsweise gering und aufgrund einer Druckbegrenzung der Pumpeneinrichtung besteht ein automatischer Überlastungsschutz.The device according to the invention enables a compact and insensitive construction of a motor-driven distribution roller, which is inexpensive to produce and requires no external drive components. The risk of damage, in particular with regard to consequential damage due to a blocking roller is comparatively low and due to a pressure limiting of the pump device is an automatic overload protection.

Die Erfindung schafft eine erhöhte Flexibilität, nachdem durch Änderung des Anschlages für das Umschaltventil variable Verreibhübe erreichbar sind. Die ggf. einstellbare Fördermenge der Pumpeneinrichtung bestimmt die Verreibfrequenz. Des Weiteren kann der erfindungsgemäße Antrieb problemlos an unterschiedliche Walzendimensionen angepasst werden.The invention provides increased flexibility, after variable Abreibhübe be reached by changing the stop for the switching valve. The optionally adjustable delivery rate of the pump device determines the Verreibfrequenz. Furthermore, the drive according to the invention can be easily adapted to different roller dimensions.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawings and will be described in more detail below.

Es zeigen:

Fig. 1
eine aufgebrochene und teilweise schematisierte Seitenansicht einer Walze mit innenliegendem motorischem Antrieb, wobei zur besseren Klarheit der Darstellung Teile der Anordnung weggelassen wurden,
Fig. 2
den Hydraulikplan des Antriebes gemäß Fig. 1 in schematischer Darstellung,
Fig. 3
eine Ausführungsform einer Pumpe innerhalb einer Walze und
Fig. 4
eine Druckeinheit einer Druckmaschine.
Show it:
Fig. 1
a broken and partially schematized side view of a roller with internal motor drive, with parts of the arrangement have been omitted for clarity of illustration,
Fig. 2
the hydraulic plan of the drive according to Fig. 1 in a schematic representation,
Fig. 3
an embodiment of a pump within a roller and
Fig. 4
a printing unit of a printing press.

Die erfindungsgemäße Walze 01 gemäß dem beschriebenen und dargestellten Ausführungsbeispiel, beispielsweise eine Verreibwalze 01 eines nicht näher dargestellten Farbwerks oder Feuchtwerks einer Druckmaschine, umfasst eine feststehende Welle 02 mit einer Achse 03. Ein Schlitten 04 ist mittels geeigneter Lager 05 an der Welle 02 in Richtung der Achse 03 verschiebbar, aber verdrehsicher geführt. Die Verdrehsicherheit der Führung ist in Fig. 1 durch einen in der Welle 02 befestigten Bolzen 06 angedeutet, der in ein Langloch 07 oder einen Schlitz 07 im Schlitten 04 eingreift; selbstverständlich könnte die Verdrehsicherheit auch auf andere Weise sichergestellt sein, z.B. über einen geeigneten, z.B. polygonalen Querschnitt der Welle 02 und einen entsprechend angepassten Führungsquerschnitt des Schlittens 04 bzw. des Lagers 05.The roller 01 of the invention according to the described and illustrated embodiment, for example, a Verreibwalze 01 of an inking unit or dampening unit of a printing press, not shown, comprising a fixed shaft 02 with an axis 03. A carriage 04 is by means of suitable bearings 05 on the shaft 02 in the direction of Axis 03 displaceable, but guided against rotation. The twist resistance of the guide is in Fig. 1 indicated by a bolt 06 fixed in the shaft 02, which engages in a slot 07 or a slot 07 in the carriage 04; Of course, the rotation could be ensured in other ways, for example via a suitable, for example, polygonal cross-section of the shaft 02 and a correspondingly adapted guide cross section of the carriage 04 and the bearing 05th

Ein zylindrischer Walzenmantel 08 der Walze 01 ist mittels Lager 09 auf dem Schlitten 04 zur freien Rotation in beide Drehrichtungen gelagert. Der Walzenmantel 08 der Walze 01 ist somit einerseits um die Achse 03 drehbar und andererseits längs der Achse 03 verschiebbar gelagert. Im Betrieb kann die Walze 01 bzw. Verreibwalze 01 an einer benachbarten, während des Betriebes rotierend angetriebenen Walze oder einem rotierend angetriebenen Zylinder (jeweils nicht dargestellt) anliegen und von dieser bzw. diesem in Rotation versetzt werden.A cylindrical roller shell 08 of the roller 01 is supported by bearings 09 on the carriage 04 for free rotation in both directions of rotation. The roller shell 08 of the roller 01 is thus on the one hand rotatable about the axis 03 and on the other hand slidably mounted along the axis 03. In operation, the roller 01 or Verreibwalze 01 on an adjacent, during operation rotatably driven roller or a rotationally driven cylinder (not shown) abut and be set by this or this in rotation.

Weiterhin ist eine im Folgenden zu beschreibende Einrichtung vorgesehen, um die Walze 01 während ihrer Rotation hin und her zu bewegen, der Walze 01 also gleichzeitig eine axiale Oszillationsbewegung zu vermitteln, beispielsweise, um eine gleichmäßige Verteilung von Druckfarbe zu erreichen.Furthermore, a device to be described below is provided to move the roller 01 during its rotation back and forth, so the roller 01 at the same time to convey an axial oscillatory motion, for example, to a uniform To achieve distribution of printing ink.

Zu diesem Zweck ist auf der ruhenden bzw. feststehenden Welle 02 eine Pumpeneinrichtung 11, nämlich eine Pumpe 11, insbesondere eine Miniaturpumpe 11 für Hydraulikflüssigkeit befestigt, die mittels eines Antriebsrades 12 antreibbar ist, welches mit seinem Umfang an der Innenseite des Walzenmantels 08 anliegt und von diesem reibschlüssig antreibbar ist. Die Pumpe 11 fördert unabhängig von der Drehrichtung des Antriebsrades 12 bzw. der Rotationsrichtung des Walzenmantels 08. Mit der Bezugsziffer 13 ist ein Vorratsbehälter für Hydraulikflüssigkeit bezeichnet, der ebenfalls auf der feststehenden Welle 02 befestigt ist und mit der Pumpe 11 ein gemeinsames Gehäuse (Fig. 1) aufweisen kann oder auch außerhalb des Gehäuses, z. B. in einer Welle (02) angeordnet sein kann (Fig. 3).For this purpose, a pump device 11, namely a pump 11, in particular a miniature pump 11 is attached to hydraulic fluid, which is driven by means of a drive wheel 12 which abuts with its circumference on the inside of the roll shell 08 and of the stationary or stationary shaft 02 this is frictionally driven. The pump 11 delivers regardless of the direction of rotation of the drive wheel 12 and the rotational direction of the roll shell 08. The reference numeral 13 denotes a reservoir for hydraulic fluid, which is also mounted on the fixed shaft 02 and the pump 11, a common housing ( Fig. 1 ) or outside the housing, for. B. in a shaft (02) can be arranged ( Fig. 3 ).

Eine Zylinder-/Kolben-Anordnung 14 umfasst einen doppeltwirkenden Zylinder 16 mit zwei Druckkammern 17 und 18, die durch den Kolben 19 voneinander getrennt sind und jeweils einen Anschluss für eine Hydraulikleitung 32 bzw. 33 aufweisen, vgl. Fig. 2. Das eine Ende des Zylinders 16 ist über einen winkelförmigen Träger 22 mit der feststehenden Welle 02 verbunden, während am entgegengesetzten Ende des Zylinders 16 die dem Kolben 19 zugeordnete Kolbenstange 21 aus dem Zylinder 16 austritt und mit dem Schlitten 04 verbunden ist.A cylinder / piston arrangement 14 comprises a double-acting cylinder 16 with two pressure chambers 17 and 18, which are separated from each other by the piston 19 and each have a connection for a hydraulic line 32 and 33, cf. Fig. 2 , The one end of the cylinder 16 is connected via an angular support 22 with the fixed shaft 02, while at the opposite end of the cylinder 16, the piston 19 associated with the piston rod 21 exits from the cylinder 16 and is connected to the carriage 04.

Die Zylinder-/Kolben-Anordnung 14 ist so angeordnet, dass durch die Anordnung der Zylinder-/Kolben-Anordnung 14 die Pumpeneinrichtung 11 eine oszillierende Bewegung in axialer Richtung einer Längsachse der Walze 01 erzeugt.The cylinder / piston assembly 14 is arranged so that the arrangement of the cylinder / piston assembly 14, the pump device 11 generates an oscillating movement in the axial direction of a longitudinal axis of the roller 01.

Wenn somit der Kolben 19 des an der feststehenden Welle 02 fixierten Zylinders 16 eine oszillierende Bewegung vollzieht, so wird diese parallel zur Achse 03 verlaufende oszillierende Bewegung über die Kolbenstange 21 auf den Schlitten 04 übertragen und von hier auf den auf dem Schlitten 04 drehbar gelagerten rotierenden Walzenmantel 08.Thus, when the piston 19 of the fixed to the fixed shaft 02 cylinder 16 performs an oscillating motion, this is parallel to the axis 03 extending oscillating movement via the piston rod 21 on the carriage 04 and transmitted from here to the rotatably mounted on the carriage 04 rotating Roll shell 08.

Um den Kolben 19 der Zylinder-/Kolben-Anordnung 14 in eine oszillierende, also hin und her gehende Bewegung zu versetzen, wird den Druckkammern 17, 18 des Zylinders 16 abwechselnd Hydraulikflüssigkeit zugeführt, wobei dieses abwechselnde Zuführen über ein Umschaltventil 23 gesteuert wird, welches im Falle des Ausführungsbeispiels ebenfalls an der feststehenden Welle 02 befestigt ist. Das Umschaltventil 23 ist als z. B. Wegeventil 23 ausgebildet und umfasst einen mittleren verschiebbaren Schaltabschnitt 24, der zwischen zwei Funktionspositionen verstellbar ist und zu diesem Zweck während des axialen Verschiebens des Schlittens 04, d.h. an den jeweiligen Endabschnitten des axialen Verstellwegs, mit seinem einen vorstehenden Ende 26 mit einer Anschlagsfläche 28 eines am Schlitten 04 befestigten Anschlagswinkels 29 oder mit seinem anderen vorstehenden Ende 27 mit einer gegenüberliegenden Anschlagsfläche 31 des Schlittens 04 in Eingriff kommt.To put the piston 19 of the cylinder / piston assembly 14 in an oscillating, so reciprocating movement, the pressure chambers 17, 18 of the cylinder 16 alternately supplied hydraulic fluid, said alternating supply is controlled by a changeover valve 23, which in the case of the embodiment also attached to the fixed shaft 02. The switching valve 23 is designed as z. B. Directional valve 23 is formed and includes a central displaceable switching portion 24 which is adjustable between two functional positions and for this purpose during the axial displacement of the carriage 04, i. at the respective end portions of the axial displacement, with its one protruding end 26 with a stop surface 28 of a stop 04 fixed to the carriage 04 or with its other projecting end 27 with an opposite stop surface 31 of the carriage 04 comes into engagement.

Auch kann das Umschaltventil 23 als Druckventil ausgebildet sein, welches in Abhängigkeit des in den Druckkammern 17, 18 des Zylinders 16 bestehenden Druckes umschaltbar ist.Also, the switching valve 23 may be formed as a pressure valve, which is switchable in dependence of the pressure in the chambers 17, 18 of the cylinder 16 existing pressure.

Wie aus Fig. 2 erkennbar weist das Umschaltventil 23 einerseits drei und andererseits zwei Eingänge auf, die über die beiden Kanäle des verschieblichen Schaltabschnitts 24 durch Verschieben des Schaltabschnitts 24 in unterschiedlicher Kombination miteinander verbindbar sind, nämlich derart, dass je nach Stellung des Schaltabschnitts 24 über die Pumpe 11 entweder, wie dargestellt, die Druckkammer 18 über die Hydraulikleitungen 34, 33 oder aber, in der anderen, nicht dargestellten Position des Schaltabschnitts 24, die Druckkammer 17 über die Hydraulikleitung 34 und 32 mit Hydraulikflüssigkeit beaufschlagt wird und die jeweils andere Druckkammer 17 bzw. 18 über die Hydraulikleitungen 32 und 36 (wie dargestellt) bzw. 33, 37 und 36 (in der anderen, nicht dargestellten Position) mit dem Vorratsbehälter 13 verbunden wird.How out Fig. 2 recognizable the changeover valve 23 on the one hand three and on the other hand two inputs which are connected via the two channels of the sliding switching portion 24 by moving the switching portion 24 in different combinations with each other, namely such that depending on the position of the switching portion 24 via the pump 11 either as shown, the pressure chamber 18 via the hydraulic lines 34, 33 or, in the other, not shown position of the switching portion 24, the pressure chamber 17 is acted upon via the hydraulic line 34 and 32 with hydraulic fluid and the other pressure chamber 17 and 18 on the Hydraulic lines 32 and 36 (as shown) and 33, 37 and 36 (in the other, not shown position) is connected to the reservoir 13.

Mittels des Umschaltventils 23 wird somit in den ggf. durch geeignete Anschläge definierten und ggf. auch verstellbaren Endlagen des Schlittens 04 die Arbeitsrichtung der Zylinder-/Kolben-Anordnung 14 umgekehrt. Es kann in diesem Zusammenhang auch eine Fixierung, z. B. eine Rastung, beispielsweise mittels einer Kugel vorgesehen sein, durch die eine Neutrallage ausgeschlossen wird, in der sich die beiden Arbeitsrichtungen gegenseitig blockieren.By means of the switching valve 23 is thus in the possibly defined by suitable stops and possibly also adjustable end positions of the carriage 04, the working direction of the cylinder / piston assembly 14 is reversed. It may in this context, a fixation, z. Example, a detent, be provided for example by means of a ball, by which a neutral position is excluded, in which the two working directions block each other.

Im Falle der Erfindung bezieht somit der insbesondere die Bauteile 11; 12; 14 und 23 umfassende motorische Antrieb 11; 12; 14; 23 für die axiale Oszillationsbewegung seine Antriebsenergie aus der Rotation der Walze 01 bzw. des Walzenmantels 08; der motorische Antrieb 11; 12; 14; 23 ist gemäß dem beschriebenen bevorzugten Ausführungsbeispiel vollständig innerhalb der Walze 01 untergebracht.In the case of the invention thus relates in particular the components 11; 12; 14 and 23 comprehensive motor drive 11; 12; 14; 23 for the axial oscillatory movement of its drive energy from the rotation of the roller 01 and the roller shell 08; the motor drive 11; 12; 14; 23 is completely housed within the roller 01 according to the described preferred embodiment.

Bei einer alternativen, nicht dargestellten Ausführungsform der Erfindung ist anstelle des beschriebenen hydraulischen Systems ein pneumatisches System vorgesehen, wobei als Arbeitsfluid insbesondere Luft einsetzbar ist. Ein Vorratsbehälter für das Arbeitsfluid erübrigt sich in diesem Fall.In an alternative, not shown embodiment of the invention, a pneumatic system is provided instead of the described hydraulic system, in particular air can be used as the working fluid. A reservoir for the working fluid is unnecessary in this case.

Ggf. kann gemäß einer weiteren, ebenfalls nicht dargestellten Ausführungsform auch eine Druckluftversorgung ggf. über einen Steckanschluss von außen durch entsprechende Bohrungen in der feststehenden Welle 02 hindurch erfolgen.Possibly. can according to another, also not shown embodiment, a compressed air supply possibly via a plug connection from the outside by corresponding holes in the fixed shaft 02 through done.

Die Pumpeneinrichtung 11 kann gemäß einer weiteren, ebenfalls nicht dargestellten Ausführungsform grundsätzlich auch extern montiert sein, d.h. beispielsweise außerhalb des Walzenmantels 08 auf der feststehenden Welle 02. Die Versorgungsleitungen können in diesem Fall durch die feststehende Welle 02 hindurch in das Innere der Walze 01 geführt werden. Auch könnte der Zylinder 16 extern montiert sein, ebenso wie der Vorratsbehälter 13 und/oder das Umschaltventil 23. Eine externe Anordnung dieser Bauteile ermöglicht ggf. deren gemeinsame Verwendung für mehrere Walzen. Auch ist bei einer externen Anordnung eine etwaige Einstellung oder nachträgliche Verstellung von Betriebsparametern einfacher, beispielsweise der Einstellung der Reibfrequenz. Auch ist eine Steuerung der Reibfrequenz unabhängig von der Maschinendrehzahl möglich.According to a further embodiment, which is likewise not illustrated, the pump device 11 can in principle also be mounted externally, ie for example outside the roller shell 08 on the stationary shaft 02. The supply lines can be guided through the stationary shaft 02 into the interior of the roller 01 in this case , Also, the cylinder 16 could be mounted externally, as well as the reservoir 13 and / or the changeover valve 23. An external arrangement of these components may allow their common use for multiple rolls. Also is in an external arrangement, any adjustment or subsequent adjustment of operating parameters easier, for example, the adjustment of the friction frequency. Also, a control of the friction frequency is independent of the engine speed possible.

Die Pumpe 11 ist vorzugsweise als Axialkolbenpumpe ausgebildet, die mindestens einen Kolben 38 aufweist. Vorzugsweise sind mehrere Kolben 38 rotationssymmetrisch zu der Welle 02 der Walze 01 angeordnet. Eine Längsachse des Kolbens 38 ist vorzugsweise parallel zu der Welle 02 oder der Walze 01 angeordnet.The pump 11 is preferably designed as an axial piston pump, which has at least one piston 38. Preferably, a plurality of pistons 38 are arranged rotationally symmetrical to the shaft 02 of the roller 01. A longitudinal axis of the piston 38 is preferably arranged parallel to the shaft 02 or the roller 01.

Das Kolbengehäuse der Pumpe 11 ist fest, vorzugsweise reibschlüssig, insbesondere mittels eines Spannsatzes mit der Welle 02 verbunden.The piston housing of the pump 11 is fixed, preferably frictionally engaged, in particular by means of a clamping set with the shaft 02.

Als Antrieb für die Pumpe 11, insbesondere für die Kolben 38 ist eine vorzugsweise umlaufende Kontaktfläche 39 vorgesehen, deren Ebene mit der Längsachse der Welle 02 eine Öffnungswinkel α ungleich 90° und ungleich 180° aufweist.As a drive for the pump 11, in particular for the piston 38, a preferably circumferential contact surface 39 is provided, whose plane with the longitudinal axis of the shaft 02 has an opening angle α not equal to 90 ° and not equal to 180 °.

Die Kontaktfläche 39 ist geneigt zu einer Vertikalebene 41 mit z. B. einem Öffnungswinkel β von 3° bis 20° angeordnet. Diese Kontaktfläche 39 rotiert mit dem Walzenmantel 08 und ist vorzugsweise reibschlüssig z. B. mittels eines Spannsatzes mit dem Walzenmantel 08 verbunden.The contact surface 39 is inclined to a vertical plane 41 with z. B. an opening angle β of 3 ° to 20 °. This contact surface 39 rotates with the roll shell 08 and is preferably frictionally z. B. connected by means of a clamping set with the roll shell 08.

Die Walze 01 kann beispielsweise als direkt mit einer Farbauftragswalze 42 zusammenwirkenden Reibwalze 43 ausgebildet sein. Die Farbauftragswalze 42 und/oder die Feuchtauftragswalze 46 ist direkt mit einem Formzylinder 44 in Kontakt. Auch kann die Walze 01 als Farbauftragswalze 42 oder Feuchtauftragswalze 46 ausgebildet sein. Ebenso ist es möglich, die Walze als Zwischenwalze 47 eines Feuchtwerkes auszubilden. Diese Zwischenwalze 47 wirkt vorzugsweise direkt mit der Feuchtauftragswalze 46 zusammen.The roller 01 may be formed, for example, as a directly cooperating with an inking roller 42 friction roller 43. The inking roller 42 and / or the dampening roller 46 is directly in contact with a forme cylinder 44. Also, the roller 01 may be formed as an inking roller 42 or dampening roller 46. It is also possible to form the roller as an intermediate roller 47 of a dampening unit. This intermediate roller 47 preferably interacts directly with the dampening roller 46.

Der Antrieb der Walze 01, insbesondere des Walzenmantels 08, erfolgt beispielsweise ausschließlich vorzugsweise reibschlüssig von einer mit der Walze 01 direkt zusammenwirkenden Walze oder einem Formzylinder 44. Der Antrieb der Pumpe 11 erfolgt außerhalb der Walze 01 daher ausschließlich durch einen reibschlüssigen Antrieb durch die direkt zusammenwirkende Walze oder dem direkt zusammenwirkenden Formzylinder 44.The drive of the roller 01, in particular of the roller shell 08, takes place, for example, exclusively by frictional engagement of a roller directly interacting with the roller 01 or a forme cylinder 44. The drive of the pump 11 therefore takes place outside the roller 01 exclusively by a frictionally engaged drive through the directly interacting roller Roller or the directly cooperating form cylinder 44th

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Walze, VerreibwalzeRoller, distributor roller
0202
Welle, feststehendeWave, fixed
0303
Achse (02)Axis (02)
0404
Schlittencarriage
0505
Lagercamp
0606
Bolzenbolt
0707
Langloch, SchlitzSlot, slot
0808
Walzenmantelroll shell
0909
Lagercamp
1010
--
1111
Pumpeneinrichtung, Pumpe, MiniaturpumpePumping device, pump, miniature pump
1212
Antriebsraddrive wheel
1313
Vorratsbehälterreservoir
1414
Zylinder-/Kolben-AnordnungCylinder / piston arrangement
1515
--
1616
Zylinder, doppeltwirkender (14)Cylinder, double acting (14)
1717
Druckkammer (16)Pressure chamber (16)
1818
Druckkammer (16)Pressure chamber (16)
1919
Kolben (14)Piston (14)
2020
--
2121
Kolbenstangepiston rod
2222
Trägercarrier
2323
Umschaltventil, WegeventilChangeover valve, directional control valve
2424
Schaltabschnitt (23)Switching section (23)
2525
--
2626
Ende (24)End (24)
2727
Ende (24)End (24)
2828
Anschlagsflächestop surface
2929
AnschlagswinkelSquares
3030
--
3131
Anschlagsflächestop surface
3232
Hydraulikleitunghydraulic line
3333
Hydraulikleitunghydraulic line
3434
Hydraulikleitunghydraulic line
3535
--
3636
Hydraulikleitunghydraulic line
3737
Hydraulikleitunghydraulic line
3838
Kolbenpiston
3939
Kontaktflächecontact area
4040
--
4141
Vertikalebenevertical plane
4242
FarbauftragswalzeInking roller
4343
Reibwalzedistributing roller
4444
Formzylinderform cylinder
4545
--
4646
FeuchtauftragswalzeDampener roller
4747
Zwischenwalzeintermediate roll
αα
Öffnungswinkelopening angle
ββ
Öffnungswinkelopening angle

Claims (52)

  1. Roller (01) for a printing press comprising a device for generating an axial oscillating movement of the rotating roller (01) of the printing press by means of a drive (11, 12, 14, 23), the drive (11, 12, 14, 23) comprising a pump device (11) subjecting a working fluid to operating pressure, characterized in that the pump device (11) is arranged in the interior of the roller (01), in that the drive (11, 12, 14, 23) comprises a drive wheel (12) which can be driven by the rotating roller (01), in that the drive wheel (12) is arranged in the interior of the roller (01), and in that the pump device (11) is connected to the drive wheel (12).
  2. Roller according to Claim 1, characterized in that the drive wheel (12) has a frictional or interlocking connection to the rotating roller (01).
  3. Roller according to Claim 1 or 2, characterized in that the drive wheel (12) has a drive connection to a cylindrical roller sleeve (08) of the roller (01).
  4. Roller according to any of the preceding claims, characterized in that pressure chambers (17, 18) effective in opposite axial directions in each case are arranged.
  5. Roller according to Claim 1, characterized in that the pump device (11) is driven by the rotation of the roller (01).
  6. Roller according to Claim 1, characterized in that the roller (01) has a detached shaft (02).
  7. Roller according to any of the preceding claims, characterized in that the roller (01) has a cylindrical roller sleeve (08).
  8. Roller according to Claim 7, characterized in that the roller sleeve (08) is rotatable about a fixed shaft (02).
  9. Roller according to Claim 8, characterized in that the cylindrical roller sleeve (08) is mounted so as to be displaceable back and forth along the fixed shaft (02).
  10. Roller according to Claim 9, characterized in that a carriage (04) is mounted on the fixed shaft (02) so as to be nonrotatable but displaceable in the axial direction.
  11. Roller according to Claim 10, characterized in that the cylindrical roller sleeve (08) is rotatably mounted on the carriage (04).
  12. Roller according to Claim 1, characterized in that the drive (11, 12, 14, 23) comprises a cylinder/piston arrangement (14).
  13. Roller according to Claims 4 and 12, characterized in that the pressure chambers (17; 18) are formed by a double-acting cylinder (16) of the cylinder/piston arrangement (14).
  14. Roller according to Claim 12, characterized in that the cylinder/piston arrangement (14) is arranged in the interior of the roller (01).
  15. Roller according to Claims 10 and 12, characterized in that the cylinder/piston arrangement (14) acts between the shaft (02) and the carriage (04).
  16. Roller according to Claim 15, characterized in that the cylinder (16) of the cylinder/piston arrangement (14) is connected to the fixed shaft (02) and the piston (19) of the cylinder/piston arrangement (14) is connected to the carriage (04).
  17. Roller according to Claim 1, characterized in that the pump device (11) has at least one pump (11).
  18. Roller according to Claim 17, characterized in that the pump (11) is in the form of a piston pump having at least one piston (38).
  19. Roller according to Claim 18, characterized in that the piston pump is in the form of an axial piston pump.
  20. Roller according to Claim 6, characterized in that the pump device (11) is arranged nonrotatably relative to the fixed shaft (02).
  21. Roller according to Claims 6 and 17, characterized in that at least the pump (11) is arranged nonrotatably relative to the fixed shaft (02).
  22. Roller according to Claim 20, characterized in that the pump device (11) is fastened to the fixed shaft (02).
  23. Roller according to Claims 1, 4 and according to any of Claims 6 to 22, characterized in that working fluid can be fed alternately to the pressure chambers (17; 18) by means of the pump device (11).
  24. Roller according to Claim 1, characterized in that the drive (11, 12, 14, 23) has a changeover valve (23).
  25. Roller according to Claim 24, characterized in that the changeover valve (23) is formed for alternate feeding of working fluid to the one or the other pressure chamber (17 or 18).
  26. Roller according to Claim 24, characterized in that the changeover valve (23) is arranged within the roller (01).
  27. Roller according to Claims 6 and 24, 25 or 26, characterized in that the changeover valve (23) is arranged nonrotatably relative to the fixed shaft (02).
  28. Roller according to Claim 7 and according to any of Claims 24 to 27, characterized in that the changeover valve (23) is switchable on the basis of a relative movement between the fixed shaft (02) and the roller sleeve (08).
  29. Roller according to Claims 4 and 24, characterized in that the changeover valve (23) is switchable on the basis of the pressure prevailing in the pressure chambers (17; 18).
  30. Roller according to any of Claims 24 to 29, characterized in that the changeover valve (23) comprises a moveable switching section (24) which is switchable by engagement with the carriage (04) or with an actuating element connected thereto or with the fixed shaft (02) or with an actuating element connected thereto.
  31. Device according to any of Claims 6 and 24 to 30, characterized in that the changeover valve (23) is fastened to the fixed shaft (02).
  32. Roller according to any of the preceding claims, characterized in that the working fluid is a hydraulic liquid.
  33. Roller according to Claim 32, characterized in that a storage container (13) for hydraulic liquid is provided.
  34. Roller according to Claim 33, characterized in that the storage container (13) is connected to the pump device (11) via the changeover valve (23).
  35. Roller according to Claim 33 or 34, characterized in that the storage container (13) is arranged in the interior of the roller (01).
  36. Roller according to Claims 6 and 35, characterized in that the storage container (13) is arranged nonrotatably relative to the fixed shaft (02).
  37. Roller according to Claim 33, characterized in that the storage container (13) has a common housing together with the pump (11) of the pump device (11).
  38. Roller according to Claim 36, characterized in that the storage container (13) is fastened to the fixed shaft (02).
  39. Roller according to any of the preceding claims, characterized in that the working fluid is a gas.
  40. Roller according to Claim 39, characterized in that the working fluid is air.
  41. Roller according to any of the preceding claims, characterized in that the drive (11, 12, 14, 23) is arranged in the interior of the roller (01).
  42. Roller according to any of Claims 4 to 41, characterized in that the working fluid can be fed to the interior of the roller (01) via at least one bore in the fixed shaft (02).
  43. Roller according to any of the preceding claims, characterized in that the roller (01) is a distributor roller (01).
  44. Roller according to Claim 43, characterized in that the roller (01) is a distributor roller (01) of an inking or damping unit of a printing press.
  45. Roller according to Claim 1, characterized in that the pump device (11) has a contact surface (39) arranged inclined to a vertical plane (41).
  46. Roller according to Claim 24, characterized in that the changeover valve (23) has a device which excludes a neutral position.
  47. Roller according to Claim 24 or 46, characterized in that the changeover valve (23) has a grid.
  48. Roller according to Claim 17 and Claim 7, characterized in that the pump (11) is arranged within the roller sleeve (08).
  49. Roller according to Claim 48, characterized in that the pump (11) arranged within the roller sleeve (08) is driven exclusively by frictional contact outside the roller sleeve (08).
  50. Roller according to Claim 7, characterized in that the total drive (11, 12, 14, 23) is arranged completely within the roller sleeve (08).
  51. Roller according to Claim 12, characterized in that the cylinder/piston arrangement (14) is arranged in such a way that the pump device (11) produces an oscillating movement in the axial direction of a longitudinal axis of the roller (01).
  52. Roller according to Claim 4 and Claim 7, characterized in that the pressure chambers (17; 18) are arranged within the roller sleeve (08).
EP07728598A 2006-05-10 2007-04-27 Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller Not-in-force EP2015938B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006021749A DE102006021749A1 (en) 2006-05-10 2006-05-10 Device for generating an axial oscillation movement of a rotating roller of a printing machine and roller with such a device
PCT/EP2007/054143 WO2007128709A2 (en) 2006-05-10 2007-04-27 Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller

Publications (2)

Publication Number Publication Date
EP2015938A2 EP2015938A2 (en) 2009-01-21
EP2015938B1 true EP2015938B1 (en) 2009-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07728598A Not-in-force EP2015938B1 (en) 2006-05-10 2007-04-27 Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller

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US (1) US8001894B2 (en)
EP (1) EP2015938B1 (en)
CN (1) CN101432140B (en)
AT (1) ATE442256T1 (en)
DE (2) DE102006021749A1 (en)
WO (1) WO2007128709A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004411A1 (en) * 2007-01-30 2008-07-31 Hydac System Gmbh Roller has transmission unit that is provided with transmission element guided to and fro along roller axle in axial direction, where transmission element is coupled with coat body by driver arrangement
CN102114989B (en) * 2010-01-06 2012-08-15 株式会社理光 Paper feeder and image forming device using same
IT1401878B1 (en) * 2010-09-21 2013-08-28 Lys Graf S R L "WATERLESS" TYPE OFFSET PRINTING SYSTEM.
MX2014009042A (en) * 2012-02-01 2014-11-04 Crown Packaging Technology Inc Container decoration.
WO2020017125A1 (en) * 2018-07-19 2020-01-23 パナソニックＩｐマネジメント株式会社 Water boat device and printing machine
WO2020097451A1 (en) 2018-11-09 2020-05-14 Ball Corporation A metering roller for an ink station assembly of a decorator and a method of decorating a container with the decoration

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US2697983A (en) * 1951-11-02 1954-12-28 Harris Seybold Co Oscillating ink roller
US3179047A (en) * 1963-07-29 1965-04-20 George O Comeau Oscillating ink rolls
DD95018A1 (en) 1971-08-19 1973-01-12
DE2238481A1 (en) 1972-08-04 1974-02-14 Zeuthen & Aagaard As DRIVE FOR A SIMULTANEOUSLY ROTATING AND MOVABLE DISTRIBUTION ROLLER ON PRINTING MACHINES
DE2931141C3 (en) 1979-08-01 1982-01-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Device for moving a distribution roller axially backwards
DE3620423A1 (en) * 1986-06-18 1987-12-23 Manfred Hattensauer Axially oscillating, rotatable roller
US5062362A (en) * 1988-10-07 1991-11-05 Advanced Graphics Technologies, Inc. Oscillating printing press roller having a plurality of separate annular pistons
CA1330636C (en) 1988-10-07 1994-07-12 James R. Kemp Oscillating printing press roller and method for operating the same
CH682895A5 (en) 1990-04-23 1993-12-15 Bobst Sa A movement of players in a printing machine.
US5125340A (en) 1990-09-21 1992-06-30 Rockwell International Corporation Oscillator apparatus for imparting axial oscillations to a roller
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US5329851A (en) 1991-10-02 1994-07-19 Rockwell International Corporation Fluidic driven self-oscillating printer roller and method
DE19603765A1 (en) 1996-02-02 1997-08-07 Heidelberger Druckmasch Ag Friction roller for printing
US6543355B1 (en) * 1998-04-24 2003-04-08 Koenig & Bauer Aktiengesellschaft Roller for a rotary press
DE10227516B4 (en) * 2001-10-25 2012-10-18 Heidelberger Druckmaschinen Ag Traversing mechanism for a rubbing roller of a printing machine
JP4364497B2 (en) * 2001-10-25 2009-11-18 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Lateral swing mechanism for lateral roller of printing press
DE102004057817A1 (en) 2003-12-15 2005-07-14 Heidelberger Druckmaschinen Ag Distribution roll oscillating mechanism for high-speed press, has crank mechanism in interior of distributor roll and having three-dimensional mechanism kinematics transforming rotation of roll barrel into axial to-and-fro movement
DE102005019266A1 (en) 2004-05-24 2005-12-15 Bosch Rexroth Aktiengesellschaft Drive unit for color roller used in printer has hydraulic remote cylinder that has pressure chambers arranged over directional control valve with inflow line for guiding system or low pressure, and connectable to return pipe

Also Published As

Publication number Publication date
ATE442256T1 (en) 2009-09-15
WO2007128709A3 (en) 2008-01-31
WO2007128709A2 (en) 2007-11-15
DE102006021749A1 (en) 2007-12-06
DE502007001503D1 (en) 2009-10-22
EP2015938A2 (en) 2009-01-21
US20090266253A1 (en) 2009-10-29
CN101432140B (en) 2010-07-28
CN101432140A (en) 2009-05-13
US8001894B2 (en) 2011-08-23

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