EP1000737A1 - Printing machine - Google Patents

Printing machine Download PDF

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Publication number
EP1000737A1
EP1000737A1 EP98121059A EP98121059A EP1000737A1 EP 1000737 A1 EP1000737 A1 EP 1000737A1 EP 98121059 A EP98121059 A EP 98121059A EP 98121059 A EP98121059 A EP 98121059A EP 1000737 A1 EP1000737 A1 EP 1000737A1
Authority
EP
European Patent Office
Prior art keywords
shaft
cylinder sleeve
printing machine
torque transmission
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98121059A
Other languages
German (de)
French (fr)
Other versions
EP1000737B1 (en
Inventor
Manfred Terstegen
Wilfried Dr. Kolbe
Klaus Schirrich
Bodo Steinmeier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to ES98121059T priority Critical patent/ES2172079T3/en
Priority to EP98121059A priority patent/EP1000737B1/en
Priority to DE59803357T priority patent/DE59803357D1/en
Priority to US09/431,473 priority patent/US6267056B1/en
Priority to JP11314560A priority patent/JP2000141598A/en
Publication of EP1000737A1 publication Critical patent/EP1000737A1/en
Application granted granted Critical
Publication of EP1000737B1 publication Critical patent/EP1000737B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/0008Driving devices

Definitions

  • the invention relates to a printing press with a rotary drive Cylinder sleeve directly at both ends with projecting stub axles is stored in the machine frame, and with a rotatable through the Cylinder sleeve extending shaft.
  • a printing machine of this type is known from EP-A-0 769 373.
  • the shaft is clamped in the machine frame like a boom, so that when changing the pressure cylinder, the cylinder sleeve axially from the free End of the shaft can be pulled off after the bearings for the Open cylinder sleeve and the unit consisting of shaft and cylinder sleeve from the Storage has been excavated.
  • the pressure cylinder sleeve is driven via one arranged on an extension of an axle stub of the cylinder sleeve Gear that meshes with a drive gear.
  • the object of the invention is a printing press of the type mentioned kind of creating an easy replacement of the cylinder sleeve, in particular the pressure cylinder sleeve, and in which a direct drive Printing cylinder sleeve by means of a coaxial drive motor is possible.
  • the shaft therefore not only serves to support the cylinder sleeve during the cylinder change, but also serves as the drive shaft. So it is it is possible to start the motor without the intermediary of a gear transmission to couple the drive shaft.
  • the drive connection is required when changing cylinders not to be interrupted between motor and shaft.
  • Torque transmission member takes place when changing the cylinder special measures required to connect the drive between Interrupt and restore shaft and cylinder sleeve.
  • the invention is not based on the drive for the printing cylinder sleeve limited but is generally for interchangeable and rotary drives
  • Rotating bodies of a printing press can be used, for example also in Anilox rollers of a flexographic printing machine and the like.
  • the direct bearing of the cylinder sleeve in the machine frame has the advantage that the axis of rotation of the cylinder sleeve is precisely defined and thus a quiet one Run of the printing machine and perfect print quality achieved can be. But since according to the invention the drive of the cylinder sleeve the shaft takes place, which in turn must be stored in the machine frame, it is expedient, the bearing of the shaft and / or the coupling between the Shaft and the cylinder sleeve so that overdetermination of the Axis of rotation can be avoided and thus the axis of rotation of the cylinder sleeve still largely due to the bearing of the axle stub in the machine frame is determined.
  • the shaft is rigidly coupled to the rotor of the drive motor means this means that the rotor of the drive motor or the entire drive motor is resiliently held on the machine frame in the radial direction.
  • This can be achieved by constructing the bracket for the motor, which has a certain elasticity in the radial direction of the shaft.
  • the Torque transmission member between the shaft and the pressure cylinder sleeve can then, for example, be designed as a cone which is frictionally engaged with a Counter cone engages on the cylinder sleeve. If the cylinder sleeve is placed axially against the cone, this results in a centering of the Shaft on the axis of rotation defined by the stub shaft of the cylinder sleeve.
  • the torque transmission member is as flat friction disc formed with an end face of an axle stub the cylinder sleeve interacts.
  • a friction clutch offers the possibility of a slight eccentricity of the shaft with respect to the axis of rotation to compensate for the cylinder sleeve. In this case, therefore, the wave also be rigidly mounted with respect to the machine frame.
  • Another option is to use an axial coupling between the rotor of the motor and the shaft.
  • the Setting the side register only adjusts the shaft in the axial direction while the rotor maintains its axial position and the relative movement between Shaft and rotor is balanced by the axial clutch.
  • the entire motor housing axially on the machine frame support so that when setting the side register the cylinder sleeve, the shaft and motor are moved as one unit.
  • the cylinder sleeve is in a defined angular position can be coupled to the shaft so that the respective angular position of the cylinder sleeve with the help of one arranged on the shaft or attached to the motor or angle increment encoder integrated in the motor automatically can be detected.
  • the torque transmission member or on the corresponding Counter surface of the cylinder sleeve at least one driver claw arranged in a corresponding opposite contour of the other Component occurs when the cylinder sleeve axially against the torque transmission member is employed.
  • the engagement of the driving claw in the counter contour should be free of play in the circumferential direction so that the angular position the cylinder sleeve can be grasped precisely. If the torque transmission link is designed as a flat friction disc, the driver claw and the counter contour, however, can be moved relative to one another in the radial direction, thus the compensation of the eccentricity between the shaft and the cylinder sleeve remains possible. It happens through the engagement of the driving claw in the Counter contour to a certain form fit between the torque transmission member and the cylinder sleeve, but the cylinder sleeve becomes so tight stretched against the torque transmission member that the torque transmission nevertheless done primarily by frictional connection. During the The operation of the printing press is therefore the mechanical load on the driving claw low, so that the wear and the plastic or elastic Deformation of the driving claw is minimized. That way long-term high precision when recording the angular position reach the cylinder sleeve.
  • FIG. 1 shows the frame of a printing press, for example a flexographic printing press, represented by two side parts 10 and 12 shown in section.
  • a printing press for example a flexographic printing press
  • On the side part 10 is a drive housing shown only schematically 14 grown.
  • An interchangeable cylinder sleeve 16 for example a pressure cylinder sleeve, is provided with stub axles at both ends 18 stored in the side parts 10 and 12.
  • the bearing 20 for the cylinder sleeve 16 is removable.
  • this is Bearing 20 axially removable from the stub axle 18, or the bearing is as Folded bearing with a laterally opening bearing cover designed and in the direction perpendicular to the plane of the drawing in FIG. 1 onto the side part 12 movable, as described in EP-A-0 812 681.
  • a shaft 22 is mounted, which coaxially the cylinder sleeve 16 extends and via an axial coupling 24 to the output shaft a motor 26 rigidly connected to the drive housing 14 is.
  • a torque transmission link in the form of a flat friction disc 28 sits rigidly on the shaft 22 and stands with the end face of the Axle stub 18 of the cylinder sleeve 16 in a frictional connection, so that transmit the drive torque of the motor 26 to the cylinder sleeve 16 becomes.
  • the shaft 22 carries a tendon 30, which engages the stub axle 18 there and the cylinder sleeve 16 presses firmly against the friction disk 28.
  • An actuating mechanism 32 known per se is located in the drive housing 14 installed to adjust the page register.
  • This adjusting mechanism 32 is actuated by a servomotor 34 and allows the by the shaft 22, the cylinder sleeve 16 and the tendon 30 unit formed axially adjust.
  • the relative movement between the shaft 22 and the output shaft the motor 26 is compensated by the axial clutch 24.
  • the motor 26 has an angle sensor 36, one for the angular position of the Wave 22 provides a representative signal for setting the longitudinal register is needed. So that the signal of the angle sensor 36 also for the angular position of the cylinder sleeve 16 is representative, the angular position of the cylinder sleeve 16 fixed relative to the shaft 22 by a driving claw 38, which is arranged on the outer circumference of the friction disc 28 and in the manner of a Single tooth clutch in a corresponding recess 40 of the stub axle 18 engages, as shown enlarged in Figure 1A.
  • the intervention of the Driver claw 28 in the recess 40 is free of play in the circumferential direction, takes place in the radial direction with a certain play, so that slight assembly-related eccentricities between the shaft 22 and the cylinder sleeve 16 can be compensated without causing bending stresses comes on the shaft or the cylinder sleeve. This ensures that the axis of rotation of the cylinder sleeve 16 precisely through the storage in the side parts 10 and 12 is defined, regardless of any inaccuracies when installing the drive housing 14.
  • Figure 2 illustrates the procedure when changing the cylinder sleeve 16. It can be seen in Figure 2 that the bearing 20 on the side of the side part 12th has been removed. In addition, the tendon 30 has been released. In the shown Example, the tendon 30 is a component with expandable elements that, when detached, closely fit the scope of the Apply shaft 22 so that the cylinder sleeve 16 over the tendon pull axially from the shaft 22. The construction of the tendon is described in detail in the earlier European patent application 98 110 132 described.
  • the new cylinder sleeve 16 is opened again over the tendon 30 the shaft 22 is pushed on until the end of its stub axle 18th strikes on the friction disc 28.
  • the cylinder sleeve is aligned so that the driving claw 38 can enter the recess 40.
  • By arrow-shaped bevel of the driving claw becomes an automatic precise Adjustment of the angular position of the cylinder sleeve 16 with respect to the shaft 22 is achieved.
  • the tendon 30 is spread again and against Cylinder sleeve 16 tensioned so that it is pressed firmly against the friction disk 28 becomes.
  • the bearing 20 is reinstalled, and that is it the process of changing cylinders has been completed.
  • FIG. 3 shows a modified embodiment in which the axial clutch 24 omitted and the output shaft of the motor 26 rigidly connected to the shaft 22 or is formed in one piece with this.
  • the housing of the engine 26 and the angle sensor 36 is in this case axially displaceable but non-rotatable held on a console 42 of the drive housing 14 and increases the adjustment of the side register on the axial movement of the shaft 22 and the cylinder sleeve 16 part.

Abstract

The printer has a rotatably driven cylindrical casing (16) mounted directly in the printer housing at both ends with protruding axle stubs (18) and a shaft (22) passing through and rotating with the cylinder casing. The rotary drive is exerted on the shaft and the cylinder casing can be applied axially to a torque transfer element (28) seated on the shaft. The torque transfer element can form a frictional coupling with an axle stub.

Description

Die Erfindung betrifft eine Druckmaschine mit einer drehantreibbaren Zylinderhülse, die an beiden Enden mit vorspringenden Achsstummeln direkt im Maschinengestell gelagert ist, und mit einer mitdrehbar durch die Zylinderhülse verlaufenden Welle.The invention relates to a printing press with a rotary drive Cylinder sleeve directly at both ends with projecting stub axles is stored in the machine frame, and with a rotatable through the Cylinder sleeve extending shaft.

Eine Druckmaschine dieser Art ist aus EP-A-0 769 373 bekannt. Bei dieser Druckmaschine ist die Welle auslegerartig im Maschinengestell eingespannt, so daß bei einem Druckzylinderwechsel die Zylinderhülse axial vom freien Ende der Welle abgezogen werden kann, nachdem die Lager für die Zylinderhülse geöffnet und die Einheit aus Welle und Zylinderhülse aus den Lagern ausgehoben worden ist. Der Antrieb der Druckzylinderhülse erfolgt über ein auf einer Verlängerung eines Achsstummels der Zylinderhülse angeordnetes Zahnrad, das mit einem Antriebszahnrad kämmt.A printing machine of this type is known from EP-A-0 769 373. At this Printing machine, the shaft is clamped in the machine frame like a boom, so that when changing the pressure cylinder, the cylinder sleeve axially from the free End of the shaft can be pulled off after the bearings for the Open cylinder sleeve and the unit consisting of shaft and cylinder sleeve from the Storage has been excavated. The pressure cylinder sleeve is driven via one arranged on an extension of an axle stub of the cylinder sleeve Gear that meshes with a drive gear.

Aufgabe der Erfindung ist es, eine Druckmaschine der eingangs genannten Art zu schaffen, die ein einfaches Auswechseln der Zylinderhülse, insbesondere der Druckzylinderhülse, gestattet, und bei der ein Direktantrieb der Druckzylinderhülse mittels eines koaxial dazu angeordneten Antriebsmotors möglich ist.The object of the invention is a printing press of the type mentioned Kind of creating an easy replacement of the cylinder sleeve, in particular the pressure cylinder sleeve, and in which a direct drive Printing cylinder sleeve by means of a coaxial drive motor is possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Drehantrieb über die Welle erfolgt und die Zylinderhülse axial gegen ein auf der Welle sitzendes Drehmomentübertragungsglied anstellbar ist.This object is achieved in that the rotary drive takes place via the shaft and the cylinder sleeve axially against a seated on the shaft Torque transmission element is adjustable.

Die Welle dient somit nicht nur zur Abstützung der Zylinderhülse während des Zylinderwechsels, sondern sie dient zugleich als Antriebswelle. Somit Ist es möglich, den Motor ohne Zwischenschaltung eines Zahnradgetriebes an die Antriebswelle zu koppeln. Bei einem Zylinderwechsel braucht die Antriebsverbindung zwischen Motor und Welle nicht unterbrochen zu werden. Da die Übertragung des Antriebsdrehmoments von der Welle auf die Zylinderhülse einfach durch axiales Anstellen der Zylinderhülse gegen das Drehmomentübertragungsglied erfolgt, sind bei einem Zylinderwechsel keine besonderen Maßnahmen erforderlich, um die Antriebsverbindung zwischen Welle und Zylinderhülse zu unterbrechen und wiederherzustellen. Wenn die Zylinderhülse von der Welle abgezogen wird, so wird dabei die Antriebsverbindung automatisch unterbrochen, und wenn die Zylinderhülse wieder axial auf die Welle aufgeschoben wird und ihre Endlage auf der Welle erreicht, so ist sie wieder an das Drehmomentübertragungsglied angestellt, so daß das Antriebsdrehmoment wieder auf die Zylinderhülse übertragen werden kann.The shaft therefore not only serves to support the cylinder sleeve during the cylinder change, but also serves as the drive shaft. So it is it is possible to start the motor without the intermediary of a gear transmission to couple the drive shaft. The drive connection is required when changing cylinders not to be interrupted between motor and shaft. As the transmission of the drive torque from the shaft to the Simply by axially turning the cylinder sleeve against the cylinder sleeve Torque transmission member takes place when changing the cylinder special measures required to connect the drive between Interrupt and restore shaft and cylinder sleeve. If the Cylinder sleeve is withdrawn from the shaft, so the drive connection automatically interrupted, and when the cylinder sleeve is axial again is pushed onto the shaft and reaches its end position on the shaft, so it is hired again to the torque transmission member, so that Drive torque can be transferred back to the cylinder sleeve.

Die Erfindung ist nicht auf den Antrieb für die Druckzylinderhülse beschränkt sondern ist generell bei auswechselbaren und drehangetriebenen Rotationskörpern einer Druckmaschine anwendbar, beispielsweise auch bei Rasterwalzen einer Flexodruckmaschine und dergleichen.The invention is not based on the drive for the printing cylinder sleeve limited but is generally for interchangeable and rotary drives Rotating bodies of a printing press can be used, for example also in Anilox rollers of a flexographic printing machine and the like.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Die direkte Lagerung der Zylinderhülse im Maschinengestell hat den Vorteil, daß die Drehachse der Zylinderhülse präzise definiert ist und somit ein ruhiger Lauf der Druckmaschine sowie eine einwandfreie Druckqualität erreicht werden können. Da aber erfindungsgemäß der Antrieb der Zylinderhülse über die Welle erfolgt, die ihrerseits im Maschinengestell gelagert sein muß, ist es zweckmäßig, die Lagerung der Welle und/oder die Kopplung zwischen der Welle und der Zylinderhülse so zu gestalten, daß Überbestimmungen der Drehachse vermieden werden und somit die Drehachse der Zylinderhülse nach wie vor maßgeblich durch die Lagerung der Achsstummel im Maschinengestell bestimmt wird. Dies läßt sich beispielsweise durch eine in Radialrichtung nachgiebige Lagerung der Welle im Maschinengestell erreichen. Sofern die Welle starr mit dem Rotor des Antriebsmotors gekoppelt ist, bedeutet dies, daß auch der Rotor des Antriebsmotors oder der gesamte Antriebsmotor in Radialrichtung nachgiebig am Maschinengestell gehalten ist. Dies läßt sich etwa durch eine Konstruktion der Halterung für den Motor erreichen, die in Radialrichtung der Welle eine gewisse Elastizität aufweist. Das Drehmomentübertragungsglied zwischen Welle und Druckzylinderhülse kann dann beispielsweise als Konus ausgebildet sein, der reibschlüssig mit einem Gegenkonus an der Zylinderhülse in Eingriff tritt. Wenn die Zylinderhülse axial gegen den Konus angestellt wird, ergibt sich so eine Zentrierung der Welle auf die durch die Achsstummel der Zylinderhülse definierte Drehachse.The direct bearing of the cylinder sleeve in the machine frame has the advantage that the axis of rotation of the cylinder sleeve is precisely defined and thus a quiet one Run of the printing machine and perfect print quality achieved can be. But since according to the invention the drive of the cylinder sleeve the shaft takes place, which in turn must be stored in the machine frame, it is expedient, the bearing of the shaft and / or the coupling between the Shaft and the cylinder sleeve so that overdetermination of the Axis of rotation can be avoided and thus the axis of rotation of the cylinder sleeve still largely due to the bearing of the axle stub in the machine frame is determined. This can be done, for example, in the radial direction achieve flexible shaft support in the machine frame. Provided the shaft is rigidly coupled to the rotor of the drive motor means this means that the rotor of the drive motor or the entire drive motor is resiliently held on the machine frame in the radial direction. This can be achieved by constructing the bracket for the motor, which has a certain elasticity in the radial direction of the shaft. The Torque transmission member between the shaft and the pressure cylinder sleeve can then, for example, be designed as a cone which is frictionally engaged with a Counter cone engages on the cylinder sleeve. If the cylinder sleeve is placed axially against the cone, this results in a centering of the Shaft on the axis of rotation defined by the stub shaft of the cylinder sleeve.

In einer anderen Ausführungsform ist das Drehmomentübertragungsglied als flache Reibscheibe ausgebildet, die mit einer Stirnfläche eines Achsstummels der Zylinderhülse zusammenwirkt. Eine so gestaltete Reibungskupplung bietet die Möglichkeit, eine leichte Exzentrizität der Welle in Bezug auf die Drehachse der Zylinderhülse auszugleichen. In diesem Fall kann daher die Welle auch starr in Bezug auf das Maschinengestell gelagert sein.In another embodiment, the torque transmission member is as flat friction disc formed with an end face of an axle stub the cylinder sleeve interacts. Such a friction clutch offers the possibility of a slight eccentricity of the shaft with respect to the axis of rotation to compensate for the cylinder sleeve. In this case, therefore, the wave also be rigidly mounted with respect to the machine frame.

Die beiden oben beschriebenen Lösungen, bei denen die Zylinderhülse mit verhältnismäßig hoher Kraft axial gegen das Drehmomentübertragungsglied gespannt wird, damit eine reibschlüssige Drehmomentübertragung erreicht wird, haben zugleich den Vorteil, daß eine axialfeste Verbindung zwischen der Zylinderhülse und der Welle geschaffen wird. Hierdurch bietet sich die vorteilhafte Möglichkeit, auch die Einstellung des Seitenregisters über die Welle vorzunehmen. Bei einem Direktantrieb der Welle muß in diesem Fall allerdings auch dafür gesorgt werden, daß eine axiale Verstellung der Welle unter Aufrechterhaltung der Antriebsverbindung zwischen Welle und Motor möglich ist. Dies läßt sich beispielsweise dadurch erreichen, daß der Rotor des Motors relativ zum Stator axial verstellbar ist. Der Rotor kann dann starr mit der Welle gekoppelt oder einstückig mit dieser ausgebildet sein und nimmt bei der Einstellung des Seitenregisters an der Axialbewegung der Welle teil. Eine weitere Möglichkeit besteht darin, eine Axialkupplung zwischen dem Rotor des Motors und der Welle vorzusehen. In diesem Fall wird bei der Einstellung des Seitenregisters nur die Welle in Axialrichtung verstellt, während der Rotor seine Axialposition behält und die Relativbewegung zwischen Welle und Rotor durch die Axialkupplung ausgeglichen wird. Schließlich ist es auch möglich, das gesamte Motorgehäuse axialbeweglich am Maschinengestell abzustützen, so daß bei der Einstellung des Seitenregisters die Zylinderhülse, die Welle und der Motor als eine Einheit bewegt werden.The two solutions described above, in which the cylinder sleeve with relatively high force axially against the torque transmission member is tensioned so that a frictional torque transmission is achieved will also have the advantage that an axially fixed connection between the cylinder sleeve and the shaft is created. This offers the advantageous way, also the setting of the page register on the Wave. In this case, however, with a direct drive of the shaft also be ensured that an axial adjustment of the shaft under Maintaining the drive connection between the shaft and motor is possible. This can be achieved, for example, by the rotor the motor is axially adjustable relative to the stator. The rotor can then be rigid coupled to the shaft or integrally formed with it and takes part in the axial movement of the shaft when setting the side register part. Another option is to use an axial coupling between the rotor of the motor and the shaft. In this case, the Setting the side register only adjusts the shaft in the axial direction while the rotor maintains its axial position and the relative movement between Shaft and rotor is balanced by the axial clutch. Finally is it is also possible to move the entire motor housing axially on the machine frame support so that when setting the side register the cylinder sleeve, the shaft and motor are moved as one unit.

Im Hinblick auf eine einfache und genaue Einstellung des Längsregisters ist es wünschenswert, wenn die Zylinderhülse in einer definierten Winkellage mit der Welle gekoppelt werden kann, damit die jeweilige Winkellage der Zylinderhülse mit Hilfe eines auf der Welle angeordneten oder an den Motor angebauten oder in den Motor integrierten Winkelinkrementgebers automatisch erfaßt werden kann. Zu diesem Zweck ist gemäß einer Weiterbildung der Erfindung an dem Drehmomentübertragungsglied oder an der entsprechenden Gegenfläche der Zylinderhülse mindestens eine Mitnehmerklaue angeordnet, die in eine entsprechende Gegenkontur des jeweils anderen Bauteils einfällt, wenn die Zylinderhülse axial gegen das Drehmomentübertragungsglied angestellt wird. Der Eingriff der Mitnehmerklaue in die Gegenkontur sollte in Umfangsrichtung spielfrei sein, damit sich die Winkellage der Zylinderhülse präzise erfassen läßt. Wenn das Drehmomentübertragungsglied als flache Reibscheibe ausgebildet ist, sollten die Mitnehmerklaue und die Gegenkontur jedoch in Radialrichtung relativ zueinander beweglich sein, damit der Ausgleich der Exzentrizität zwischen Welle und Zylinderhülse möglich bleibt. Zwar kommt es durch den Eingriff der Mitnehmerklaue in die Gegenkontur zu einem gewissen Formschluß zwischen dem Drehmomentübertragungsglied und der Zylinderhülse, doch wird die Zylinderhülse so fest gegen das Drehmomentübertragungsglied gespannt, daß die Drehmomentübertrgagung dennoch in erster Linie durch Kraftschluß erfolgt. Während des Betriebs der Druckmaschine ist deshalb die mechanische Belastung der Mitnehmerklaue gering, so daß der Verschleiß und die plastische oder elastische Verformung der Mitnehmerklaue minimiert wird. Auf diese Weise läßt sich auch langfristig eine hohe Präzision bei der Erfassung der Winkellage der Zylinderhülse erreichen.With regard to a simple and precise adjustment of the longitudinal register it is desirable if the cylinder sleeve is in a defined angular position can be coupled to the shaft so that the respective angular position of the cylinder sleeve with the help of one arranged on the shaft or attached to the motor or angle increment encoder integrated in the motor automatically can be detected. For this purpose, according to a training course of the invention on the torque transmission member or on the corresponding Counter surface of the cylinder sleeve at least one driver claw arranged in a corresponding opposite contour of the other Component occurs when the cylinder sleeve axially against the torque transmission member is employed. The engagement of the driving claw in the counter contour should be free of play in the circumferential direction so that the angular position the cylinder sleeve can be grasped precisely. If the torque transmission link is designed as a flat friction disc, the driver claw and the counter contour, however, can be moved relative to one another in the radial direction, thus the compensation of the eccentricity between the shaft and the cylinder sleeve remains possible. It happens through the engagement of the driving claw in the Counter contour to a certain form fit between the torque transmission member and the cylinder sleeve, but the cylinder sleeve becomes so tight stretched against the torque transmission member that the torque transmission nevertheless done primarily by frictional connection. During the The operation of the printing press is therefore the mechanical load on the driving claw low, so that the wear and the plastic or elastic Deformation of the driving claw is minimized. That way long-term high precision when recording the angular position reach the cylinder sleeve.

Im folgenden werden Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert.The following are exemplary embodiments of the invention with reference to the drawing explained in more detail.

Es zeigen:

Fig. 1
einen schematischen Axialschnitt durch eine Zylinderhülse einer Druckmaschine mit zugehöriger Antriebs- und Seitenregisterverstellvorrichtung;
Fig. 1A
eine Detailvergrößerung zu Fig. 1;
Fig. 2
eine Darstellung entsprechend Figur 1, jedoch für ein Zwischenstadium während eines Wechsels der Zylinderhülse; und
Fig. 3
eine Antriebs- und Seitenregisterverstellvorrichtung gemäß einer abgewandelten Ausführungsform.
Show it:
Fig. 1
a schematic axial section through a cylinder sleeve of a printing press with associated drive and side register adjustment device;
Fig. 1A
an enlarged detail of Fig. 1;
Fig. 2
a representation corresponding to Figure 1, but for an intermediate stage during a change of the cylinder sleeve; and
Fig. 3
a drive and side register adjustment device according to a modified embodiment.

In Figur 1 ist das Gestell einer Druckmaschine, beispielsweise einer Flexodruckmaschine, durch zwei im Schnitt dargestellte Seitenteile 10 und 12 repräsentiert. An das Seitenteil 10 ist ein nur schematisch dargestelltes Antriebsgehäuse 14 angebaut. Eine auswechselbare Zylinderhülse 16, beispielsweise eine Druckzylinderhülse, ist mit an beiden Enden vorgesehenen Achsstummeln 18 in den Seitenteilen 10 und 12 gelagert. Bei dem Seitenteil 12 ist das Lager 20 für die Zylinderhülse 16 entfernbar. Beispielsweise ist dieses Lager 20 axial von dem Achsstummel 18 abziehbar, oder das Lager ist als Klapplager mit einem sich seitlich öffnenden Lagerdeckel ausgebildet und in der Richtung senkrecht zur Zeichenebene in Figur 1 auf den Seitenteil 12 verfahrbar, wie in EP-A-0 812 681 beschrieben wird.1 shows the frame of a printing press, for example a flexographic printing press, represented by two side parts 10 and 12 shown in section. On the side part 10 is a drive housing shown only schematically 14 grown. An interchangeable cylinder sleeve 16, for example a pressure cylinder sleeve, is provided with stub axles at both ends 18 stored in the side parts 10 and 12. With the side part 12 the bearing 20 for the cylinder sleeve 16 is removable. For example, this is Bearing 20 axially removable from the stub axle 18, or the bearing is as Folded bearing with a laterally opening bearing cover designed and in the direction perpendicular to the plane of the drawing in FIG. 1 onto the side part 12 movable, as described in EP-A-0 812 681.

In dem Getriebegehäuse 14 ist eine Welle 22 gelagert, die sich koaxial durch die Zylinderhülse 16 erstreckt und über eine Axialkupplung 24 mit der Ausgangswelle eines starr am Antriebsgehäuse 14 gehaltenen Motors 26 verbunden ist. Ein Drehmomentübertragungsglied in der Form einer flachen Reibscheibe 28 sitzt starr auf der Welle 22 und steht mit der Stirnfläche des Achsstummels 18 der Zylinderhülse 16 in reibschlüssiger Verbindung, so daß das Antriebsdrehmoment des Motors 26 auf die Zylinderhülse 16 übertragen wird. Am freien Ende, rechts in Figur 1, trägt die Welle 22 ein Spannglied 30, das an dem dortigen Achsstummel 18 angreift und die Zylinderhülse 16 fest gegen die Reibscheibe 28 andrückt.In the gear housing 14, a shaft 22 is mounted, which coaxially the cylinder sleeve 16 extends and via an axial coupling 24 to the output shaft a motor 26 rigidly connected to the drive housing 14 is. A torque transmission link in the form of a flat friction disc 28 sits rigidly on the shaft 22 and stands with the end face of the Axle stub 18 of the cylinder sleeve 16 in a frictional connection, so that transmit the drive torque of the motor 26 to the cylinder sleeve 16 becomes. At the free end, on the right in FIG. 1, the shaft 22 carries a tendon 30, which engages the stub axle 18 there and the cylinder sleeve 16 presses firmly against the friction disk 28.

In dem Antriebsgehäuse 14 ist ein an sich bekannter Stellmechanismus 32 zur Verstellung des Seitenregisters installiert. Dieser Stellmechanismus 32 wird durch einen Stellmotor 34 betätigt und gestattet es, die durch die Welle 22, die Zylinderhülse 16 und das Spannglied 30 gebildete Einheit axial zu verstellen. Die Relativbewegung zwischen der Welle 22 und der Ausgangswelle des Motors 26 wird dabei durch die Axialkupplung 24 ausgeglichen.An actuating mechanism 32 known per se is located in the drive housing 14 installed to adjust the page register. This adjusting mechanism 32 is actuated by a servomotor 34 and allows the by the shaft 22, the cylinder sleeve 16 and the tendon 30 unit formed axially adjust. The relative movement between the shaft 22 and the output shaft the motor 26 is compensated by the axial clutch 24.

Der Motor 26 weist einen Winkelfühler 36 auf, der ein für die Winkellage der Welle 22 repräsentatives Signal liefert, das für die Einstellung des Längsregisters benötigt wird. Damit das Signal des Winkelfühlers 36 auch für die Winkellage der Zylinderhülse 16 repräsentativ ist, wird die Winkellage der Zylinderhülse 16 relativ zu der Welle 22 durch eine Mitnehmerklaue 38 fixiert, die am äußeren Umfang der Reibscheibe 28 angeordnet ist und nach Art einer Einzahnkupplung in eine entsprechende Ausnehmung 40 des Achsstummels 18 eingreift, wie vergrößert in Figur 1A dargestellt ist. Der Eingriff der Mitnehmerklaue 28 in die Ausnehmung 40 ist in Umfangsrichtung spielfrei, erfolgt jedoch in Radialrichtung mit einem gewissen Spiel, so daß geringfügige montagebedingte Exzentrizitäten zwischen der Welle 22 und der Zylinderhülse 16 ausgeglichen werden können, ohne daß es zu Biegebeanspruchungen an der Welle oder der Zylinderhülse kommt. Auf diese Weise ist sichergestellt, daß die Drehachse der Zylinderhülse 16 präzise durch die Lagerung in den Seitenteilen 10 und 12 definiert ist, unabhängig von etwaigen Ungenauigkeiten bei der Montage des Antriebsgehäuses 14.The motor 26 has an angle sensor 36, one for the angular position of the Wave 22 provides a representative signal for setting the longitudinal register is needed. So that the signal of the angle sensor 36 also for the angular position of the cylinder sleeve 16 is representative, the angular position of the cylinder sleeve 16 fixed relative to the shaft 22 by a driving claw 38, which is arranged on the outer circumference of the friction disc 28 and in the manner of a Single tooth clutch in a corresponding recess 40 of the stub axle 18 engages, as shown enlarged in Figure 1A. The intervention of the Driver claw 28 in the recess 40 is free of play in the circumferential direction, takes place in the radial direction with a certain play, so that slight assembly-related eccentricities between the shaft 22 and the cylinder sleeve 16 can be compensated without causing bending stresses comes on the shaft or the cylinder sleeve. This ensures that the axis of rotation of the cylinder sleeve 16 precisely through the storage in the side parts 10 and 12 is defined, regardless of any inaccuracies when installing the drive housing 14.

Figur 2 illustriert die Vorgehensweise bei einem Wechsel der Zylinderhülse 16. Man erkennt in Figur 2, daß das Lager 20 auf der Seite des Seitenteils 12 entfernt worden ist. Außerdem ist das Spannglied 30 gelöst worden. Im gezeigten Beispiel handelt es sich bei dem Spannglied 30 um ein Bauteil mit spreizbaren Elementen, die sich im gelösten Zustand eng an den Umfang der Welle 22 anlegen, so daß sich die Zylinderhülse 16 über das Spannglied hinweg axial von der Welle 22 abziehen läßt. Die Konstruktion des Spanngliedes wird im einzelnen in der älteren europäischen Patentanmeldung 98 110 132 beschrieben.Figure 2 illustrates the procedure when changing the cylinder sleeve 16. It can be seen in Figure 2 that the bearing 20 on the side of the side part 12th has been removed. In addition, the tendon 30 has been released. In the shown Example, the tendon 30 is a component with expandable elements that, when detached, closely fit the scope of the Apply shaft 22 so that the cylinder sleeve 16 over the tendon pull axially from the shaft 22. The construction of the tendon is described in detail in the earlier European patent application 98 110 132 described.

Die neue Zylinderhülse 16 wird wieder über das Spannglied 30 hinweg auf die Welle 22 aufgeschoben, bis sie mit der Stirnseite ihres Achsstummels 18 an der Reibscheibe 28 anschlägt. Dabei ist die Zylinderhülse so ausgerichtet, daß die Mitnehmerklaue 38 in die Ausnehmung 40 eintreten kann. Durch pfeilförmige Abschrägung der Mitnehmerklaue wird eine selbsttätige präzise Justierung der Winkellage der Zylinderhülse 16 in Bezug auf die Welle 22 erreicht. Anschließend wird das Spannglied 30 wieder gespreizt und gegen die Zylinderhülse 16 gespannt, so daß diese fest gegen die Reibscheibe 28 angedrückt wird. Schließlich wird das Lager 20 wieder installiert, und damit ist der Vorgang des Zylinderwechsels abgeschlossen.The new cylinder sleeve 16 is opened again over the tendon 30 the shaft 22 is pushed on until the end of its stub axle 18th strikes on the friction disc 28. The cylinder sleeve is aligned so that the driving claw 38 can enter the recess 40. By arrow-shaped bevel of the driving claw becomes an automatic precise Adjustment of the angular position of the cylinder sleeve 16 with respect to the shaft 22 is achieved. Then the tendon 30 is spread again and against Cylinder sleeve 16 tensioned so that it is pressed firmly against the friction disk 28 becomes. Finally, the bearing 20 is reinstalled, and that is it the process of changing cylinders has been completed.

Figur 3 zeigt eine modifizierte Ausführungsform, bei der die Axialkupplung 24 entfällt und die Ausgangswelle des Motors 26 starr mit der Welle 22 verbunden oder in einem Stück mit dieser ausgebildet ist. Das Gehäuse des Motors 26 und des Winkelfühlers 36 ist in diesem Fall axial verschiebbar aber drehfest auf einer Konsole 42 des Antriebsgehäuses 14 gehalten und nimmt bei der Einstellung des Seitenregisters an der axialen Bewegung der Welle 22 und der Zylinderhülse 16 teil.FIG. 3 shows a modified embodiment in which the axial clutch 24 omitted and the output shaft of the motor 26 rigidly connected to the shaft 22 or is formed in one piece with this. The housing of the engine 26 and the angle sensor 36 is in this case axially displaceable but non-rotatable held on a console 42 of the drive housing 14 and increases the adjustment of the side register on the axial movement of the shaft 22 and the cylinder sleeve 16 part.

Claims (9)

Druckmaschine mit einer drehantreibbaren Zylinderhülse (16), die an beiden Enden mit vorspringenden Achsstummeln (18) direkt im Maschinengestell (10, 12) gelagert ist, und mit einer mitdrehbar durch die Zylinderhülse verlaufenden Welle (22), dadurch gekennzeichnet, daß der Drehantrieb über die Welle (22) erfolgt und die Zylinderhülse (16) axial gegen ein auf der Welle sitzendes Drehmomentübertragungsglied (28) anstellbar ist.Printing machine with a rotatably drivable cylinder sleeve (16), which is supported at both ends with projecting stub axles (18) directly in the machine frame (10, 12), and with a shaft (22) which can also rotate through the cylinder sleeve, characterized in that the rotary drive via the shaft (22) takes place and the cylinder sleeve (16) can be adjusted axially against a torque transmission element (28) seated on the shaft. Druckmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Drehmomentübertragungsglied (28) und die Zylinderhülse (16) axial gegeneinander spannbar sind, so daß das Drehmomentübertragungsglied mit dem ihm zugewandten Achsstummel (18) der Zylinderhülse eine Reibungskupplung bildet.Printing machine according to claim 1, characterized in that the torque transmission member (28) and the cylinder sleeve (16) can be axially clamped against one another, so that the torque transmission member forms a friction clutch with the axle stub (18) of the cylinder sleeve facing it. Druckmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Zylinderhülse (16) mittels eines auf der Welle (22) sitzenden Spanngliedes (30) gegen das Drehmomentübertragungsglied (28) spannbar ist.Printing machine according to claim 2, characterized in that the cylinder sleeve (16) can be tensioned against the torque transmission member (28) by means of a tensioning member (30) seated on the shaft (22). Druckmaschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Drehmomentübertragungsglied (28) eine flache Reibscheibe ist.Printing machine according to claim 2 or 3, characterized in that the torque transmission member (28) is a flat friction disc. Druckmaschine nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Winkelposition der Welle (22) mit Hilfe eines Winkelfühlers (36) erfaßbar ist und daß das Drehmomentübertragungsglied (28) oder der Achsstummel (18) der Zylinderhülse (16) mindestens eine Mitnehmerklaue (38) aufweist, die in Umfangsrichtung spielfrei In eine entsprechende Ausnehmung (40) des jeweiligen anderen Bauteils eingreift.Printing machine according to one of the preceding claims, characterized in that the angular position of the shaft (22) can be detected with the aid of an angle sensor (36) and that the torque transmission member (28) or the stub shaft (18) of the cylinder sleeve (16) has at least one driver claw (38 ) which engages without play in the circumferential direction in a corresponding recess (40) of the respective other component. Druckmaschine nach den Ansprüchen 4 und 5, dadurch gekennzeichnet, daß die Mitnehmerklaue (38) eine Einzahnkupplung bildet und in der Ausnehmung (40) in Radialrichtung Spiel hat.Printing machine according to claims 4 and 5, characterized in that the driver claw (38) forms a one-tooth clutch and has play in the recess (40) in the radial direction. Druckmaschine nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein Stellmechanismus (32) zur Verstellung des Seitenregisters an der Welle (22) angreift. Printing machine according to one of the preceding claims, characterized in that an adjusting mechanism (32) acts on the shaft (22) for adjusting the side register. Druckmaschine nach Anspruch 7, dadurch gekennzeichnet, daß ein Motor (26) für den Antrieb der Welle (22) mit der Welle (22) über eine Axialkupplung (24) verbunden ist, die axiale Relativbewegungen zwischen der Welle (22) und der Ausgangswelle des Motors ausgleicht.Printing machine according to claim 7, characterized in that a motor (26) for driving the shaft (22) is connected to the shaft (22) via an axial coupling (24), the axial relative movements between the shaft (22) and the output shaft of the Motors compensates. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Ausgangswelle eines Motors (26) für den Antrieb der Welle (22) starr mit dieser Welle verbunden ist und das Gehäuse dieses Motors (26) drehfest und axial verschiebbar am Maschinengestell gehalten ist.Apparatus according to claim 7, characterized in that the output shaft of a motor (26) for driving the shaft (22) is rigidly connected to this shaft and the housing of this motor (26) is held on the machine frame in a rotationally fixed and axially displaceable manner.
EP98121059A 1998-11-06 1998-11-06 Printing machine Expired - Lifetime EP1000737B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES98121059T ES2172079T3 (en) 1998-11-06 1998-11-06 PRINTING MACHINE.
EP98121059A EP1000737B1 (en) 1998-11-06 1998-11-06 Printing machine
DE59803357T DE59803357D1 (en) 1998-11-06 1998-11-06 press
US09/431,473 US6267056B1 (en) 1998-11-06 1999-11-01 Printing machine
JP11314560A JP2000141598A (en) 1998-11-06 1999-11-05 Printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98121059A EP1000737B1 (en) 1998-11-06 1998-11-06 Printing machine

Publications (2)

Publication Number Publication Date
EP1000737A1 true EP1000737A1 (en) 2000-05-17
EP1000737B1 EP1000737B1 (en) 2002-03-13

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US (1) US6267056B1 (en)
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JP (1) JP2000141598A (en)
DE (1) DE59803357D1 (en)
ES (1) ES2172079T3 (en)

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WO2002076742A1 (en) 2001-03-26 2002-10-03 Koenig & Bauer Aktiengesellschaft Drive mechanism of a cylinder
WO2002081216A2 (en) * 2001-04-09 2002-10-17 Koenig & Bauer Aktiengesellschaft Printing couple in a printing machine with a pivotal transfer cylinder
DE10114801A1 (en) * 2001-03-26 2002-10-17 Koenig & Bauer Ag Printer drive unit comprises transmission cylinder with connection with form cylinder, motor, spur toothing, inker unit, and drive mechanism
US6776093B2 (en) 2001-03-26 2004-08-17 Koenig & Bauer Aktiengesellschaft Drive system for a printing group
US6901854B2 (en) 2001-03-26 2005-06-07 Koenig & Bauer Aktiengesellschaft Drive mechanism of a printing unit
WO2005100022A2 (en) * 2004-04-16 2005-10-27 Man Roland Druckmaschinen Ag Direct drive for a cylinder of a converting machine
DE10232552B4 (en) * 2002-07-18 2005-12-08 Koenig & Bauer Ag Drive a rotating body

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ES1054281Y (en) * 2003-03-17 2003-10-16 Comexi Sa MACHINERY ROLLER FOR FLEXOGRAPHIC PRINTING WITH ANGLE POSITION CONTROL DEVICE.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6901854B2 (en) 2001-03-26 2005-06-07 Koenig & Bauer Aktiengesellschaft Drive mechanism of a printing unit
DE10114806A1 (en) * 2001-03-26 2002-10-17 Koenig & Bauer Ag Drive a cylinder
DE10114801A1 (en) * 2001-03-26 2002-10-17 Koenig & Bauer Ag Printer drive unit comprises transmission cylinder with connection with form cylinder, motor, spur toothing, inker unit, and drive mechanism
US6776093B2 (en) 2001-03-26 2004-08-17 Koenig & Bauer Aktiengesellschaft Drive system for a printing group
WO2002076742A1 (en) 2001-03-26 2002-10-03 Koenig & Bauer Aktiengesellschaft Drive mechanism of a cylinder
US6915739B2 (en) 2001-03-26 2005-07-12 Koenig & Bauer Aktiengesellschaft Drive mechanism of a cylinder
DE10114801B4 (en) * 2001-03-26 2005-10-13 Koenig & Bauer Ag Drive a printing unit
WO2002081216A2 (en) * 2001-04-09 2002-10-17 Koenig & Bauer Aktiengesellschaft Printing couple in a printing machine with a pivotal transfer cylinder
WO2002081216A3 (en) * 2001-04-09 2002-12-27 Koenig & Bauer Ag Printing couple in a printing machine with a pivotal transfer cylinder
DE10232552B4 (en) * 2002-07-18 2005-12-08 Koenig & Bauer Ag Drive a rotating body
WO2005100022A2 (en) * 2004-04-16 2005-10-27 Man Roland Druckmaschinen Ag Direct drive for a cylinder of a converting machine
WO2005100022A3 (en) * 2004-04-16 2006-02-23 Roland Man Druckmasch Direct drive for a cylinder of a converting machine
US7709986B2 (en) 2004-04-16 2010-05-04 Ditf Deutsche Institute Fur Textil-Und Faserforschung Direct drive for a cylinder of a converting machine

Also Published As

Publication number Publication date
DE59803357D1 (en) 2002-04-18
ES2172079T3 (en) 2002-09-16
JP2000141598A (en) 2000-05-23
US6267056B1 (en) 2001-07-31
EP1000737B1 (en) 2002-03-13

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