EP0712725A2 - Pressure roll for pressing a flexible printing plate against the forme cylinder - Google Patents

Pressure roll for pressing a flexible printing plate against the forme cylinder Download PDF

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Publication number
EP0712725A2
EP0712725A2 EP95117485A EP95117485A EP0712725A2 EP 0712725 A2 EP0712725 A2 EP 0712725A2 EP 95117485 A EP95117485 A EP 95117485A EP 95117485 A EP95117485 A EP 95117485A EP 0712725 A2 EP0712725 A2 EP 0712725A2
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EP
European Patent Office
Prior art keywords
rollers
rolling element
forme cylinder
cylinder
forme
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
EP95117485A
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German (de)
French (fr)
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EP0712725B2 (en
EP0712725A3 (en
EP0712725B1 (en
Inventor
Gunnar Rau
Albert Heller
Michael Scholz
Georg Kässmair
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Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0712725A2 publication Critical patent/EP0712725A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a rolling element for pressing a flexible printing plate against the form cylinder of a printing unit of a rotary printing machine when changing plates according to the preamble of patent claim 1 or 6.
  • JP patent right 1-176558 shows a device for assembling and disassembling a flexible printing plate.
  • the device uses two rollers with which the printing plate is pressed against the rotating forme cylinder.
  • the rollers are spaced from each other and are each employed by a working cylinder, on the piston rods of which they are rotatably attached.
  • a disadvantage of this device is that the rollers are smeared with printing ink when the printing plate is removed from its colored image. Before installing a new printing plate, the rollers have to be cleaned in a time-consuming process. Otherwise, the rollers will smear the new printing plate, and as a result, waste will accumulate at the start of printing until the printing plate cleans itself during printing.
  • this object is achieved in a generic device by using the features of the characterizing part of patent claim 1.
  • the first rollers which are only used in the mounting of the printing plates, are not smeared with paint when the printing plate is removed and thus do not contaminate the new printing plate.
  • the rolling element no longer has to be washed continuously, and no waste has to be accepted for this advantage.
  • the rolling element opens up the possibility of a fully automatic plate change.
  • the object is also achieved according to the invention with the characterizing features of patent claim 6.
  • the dirt protection prevents pressure elements from becoming dirty due to paint splashes and paint mist and saves them having to be cleaned. Even rolls that are only used to assemble a printing plate and are thus arranged in a stationary manner and extend across the width of the printing plate no longer need to be subjected to frequent cleaning.
  • the rollers 7, 8 have a rubber or other elastic covering so that they do not damage the pressure plate when it is in contact with it.
  • the design can also be changed so that only one, possibly wider, roller is arranged on a piston rod 11, 23. In the limit case, only a single first roller can be used, which extends over about half of the printing plate, while a single second roller can be set in the area of the other half of the printing plate.
  • the rollers 7 and 8 together with the working cylinders 12 and 24 and the cross member 13 are housed in a dirt protection 16.
  • the latter is box-shaped and has a pivotable opening flap 17 towards the forme cylinder 3.
  • a working cylinder 18 is attached to the dirt guard 16, more precisely to the cross member 13, the piston rod 19 of which is articulated via a coupling 20 to the opening flap 17 for its actuation (FIG. 7).
  • the roller guard 15 which is rounded with large radii, prevents the trailing end of the pressure plate 25 from getting caught.
  • the rollers 7 are in rolling contact with the forme cylinder 3 and press the pressure plate 25 against the forme cylinder 3.
  • the opened opening flap 17 serves as a run-in protection for the run-in gap 28 between forme cylinder 3 and roller 7.
  • the transfer cylinder 5 does not need to be in contact with the forme cylinder 3. Instead, the transfer cylinder 5 is in the printing position, so that the web 29 to be printed later does not need to be capped when changing the plate, that is to say both when mounting the plate and when removing the plate as described below.
  • FIG. 6 shows the disassembly of the pressure plate 25.
  • the opening flap 17 of the dirt protection 16 is already in the open position by appropriately actuating the working cylinder 18.
  • their piston rods 23 are brought from the position shown in FIG. 2 to the position shown in FIG. H. extended.
  • the rollers 8 are moved up to the forme cylinder 3 and supply the rolling contact to the latter when the printing plate 25 is being unwound.
  • the clean rollers 7 are then again available for the assembly of a new, clean pressure plate 25.
  • Another rolling element with first and second rollers 7, 8 is arranged on the forme cylinder 4 of the lower printing unit 2.
  • the rollers 7, 8 are attached to the roller guard 30, which is mounted in the pivot point 31 in the side walls 14.
  • the first and second rollers 7, 8 together with the roller guard 30 can be pivoted away from the forme cylinder 4 about the pivot point 31 (position shown in broken lines in FIG. 1).
  • the working cylinders 12, 18 and 24 are advantageously operated with compressed air.
  • the compressed air for the working cylinder 18 is so limited in terms of its pressure that the actuated opening flap 17 does not injure an operator's hands when opening or closing.

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  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

The roller element finds application in a rotary printing machine during foam plate (15) exchange. It consists of several, individually adjustable rollers (7), arranged along the jacket of the forme cylinder (3). One or several first rollers (7) are adjustable on the forme cylinders during the forme plate mounting, while one or more second rollers are adjustably usable during the forme plate dismounting. Pref. the two types of rollers are fitted to the forme cylinder alternatingly adjacent to each other.

Description

Die Erfindung betrifft ein Wälzelement zum Andrücken einer flexiblen Druckplatte an den Formzylinder eines Druckwerkes einer Rotationsdruckmaschine beim Plattenwechsel nach dem Oberbegriff des Patentanspruchs 1 oder 6.The invention relates to a rolling element for pressing a flexible printing plate against the form cylinder of a printing unit of a rotary printing machine when changing plates according to the preamble of patent claim 1 or 6.

Das JP-Schutzrecht 1-176558 zeigt eine Vorrichtung zur Montage und Demontage einer flexiblen Druckplatte. Beim Wickeln der Druckplatte auf den oder von dem Formzylinder bedient sich die Vorrichtung zweier Rollen, mit denen die Druckplatte gegen den sich drehenden Formzylinder gedrückt wird. Die Rollen sind zueinander beabstandet und werden von jeweils einem Arbeitszylinder angestellt, an deren Kolbenstangen sie drehbar befestigt sind. Bei dieser Vorrichtung ist nachteilig, daß die Rollen bei der Demontage einer Druckplatte von deren eingefärbtem Bild mit Druckfarbe verschmiert werden. Vor dem Montieren einer neuen Druckplatte müssen die Rollen zeitaufwendig gesäubert werden. Anderenfalls verschmieren die Rollen die neue Druckplatte, und als Folge dessen fällt beim Druckbeginn Makulatur an, bis sich die Druckplatte beim Drucken säubert.JP patent right 1-176558 shows a device for assembling and disassembling a flexible printing plate. When winding the printing plate on or from the forme cylinder, the device uses two rollers with which the printing plate is pressed against the rotating forme cylinder. The rollers are spaced from each other and are each employed by a working cylinder, on the piston rods of which they are rotatably attached. A disadvantage of this device is that the rollers are smeared with printing ink when the printing plate is removed from its colored image. Before installing a new printing plate, the rollers have to be cleaned in a time-consuming process. Otherwise, the rollers will smear the new printing plate, and as a result, waste will accumulate at the start of printing until the printing plate cleans itself during printing.

Bei einer stationär am Formzylinder angeordneten Andrückrolle (DE 42 18 602 C2) besteht weiterhin die Gefahr, daß die Andrückrolle durch Farbspritzer und Farbnebeln verschmutzt wird. Bei der Montage einer neuen Druckplatte stellen sich dann ebenfalls die aufgezeigten Nachteile ein.In the case of a pressure roller arranged in a stationary manner on the forme cylinder (DE 42 18 602 C2), there is also the risk that the pressure roller will be contaminated by paint splashes and ink mists. When installing a new pressure plate, the disadvantages shown also arise.

Es ist Aufgabe der Erfindung, ein Wälzelement zum Andrücken der Druckplatte zu schaffen, das die Druckplatte bei deren Montage nicht mit Farbe verschmiert.It is an object of the invention to provide a rolling element for pressing the printing plate, which does not smear the printing plate with paint when it is being assembled.

Erfindungsgemäß wird diese Aufgabe bei einer gattungsgemäßen Vorrichtung durch die Anwendung der Merkmale des Kennzeichens des Patentanspruchs 1 gelöst. Durch die Trennung des Wälzelements in erste und zweite Rollen werden die lediglich bei der Druckplattenmontage verwendeten ersten Rollen bei einer Druckplattendemontage nicht mit Farbe verschmiert und verschmutzen so nicht die neue Druckplatte. Maschinenstillstandszeiten sparend braucht nicht mehr laufend das Wälzelement gewaschen zu werden, und für diesen Vorteil muß keine Makulatur in Kauf genommen werden. In Verbindung mit einem geeigneten Plattenspannsystem eröffnet das Wälzelement die Möglichkeit eines vollautomatischen Plattenwechsels.According to the invention, this object is achieved in a generic device by using the features of the characterizing part of patent claim 1. By separating the rolling element into first and second rollers, the first rollers, which are only used in the mounting of the printing plates, are not smeared with paint when the printing plate is removed and thus do not contaminate the new printing plate. To save machine downtimes, the rolling element no longer has to be washed continuously, and no waste has to be accepted for this advantage. In conjunction with a suitable plate clamping system, the rolling element opens up the possibility of a fully automatic plate change.

Die Aufgabe wird auch erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruchs 6 gelöst. Der Schmutzschutz vermeidet das Verschmutzen von Andrückelementen durch Farbspritzer und Farbnebeln und erspart deren Reinigen. Auch Rollen, die nur zur Montage einer Druckplatte verwendet werden und so ggf. stationär angeordnet sind und über die Breite der Druckplatte reichen, brauchen nunmehr keinen häufigen Reinigungen mehr unterzogen zu werden.The object is also achieved according to the invention with the characterizing features of patent claim 6. The dirt protection prevents pressure elements from becoming dirty due to paint splashes and paint mist and saves them having to be cleaned. Even rolls that are only used to assemble a printing plate and are thus arranged in a stationary manner and extend across the width of the printing plate no longer need to be subjected to frequent cleaning.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen in Verbindung mit der Beschreibung.Advantageous further developments result from the subclaims in connection with the description.

Die Erfindung soll nachfolgend an einem Ausführungsbeispiel näher erläutert werden. In den zugehörigen Zeichnungen zeigt schematisch:

Fig. 1
ein Doppeldruckwerk im Schnitt,
Fig. 2
die Ansicht Z nach Fig. 1,
Fig. 3
den Schnitt III-III nach Fig. 2,
Fig. 4
den Schnitt III-III nach Fig. 2 beim Klemmen der vorlaufenden Kante der Druckplatte,
Fig. 5
den Schnitt III-III nach Fig. 2 beim Aufziehen der Druckplatte,
Fig. 6
den Schnitt VI-VI nach Fig. 2 bei der Demontage der Druckplatte,
Fig. 7
den Schnitt VII-VII nach Fig. 2
Fig. 1 zeigt eine Druckeinheit einer Offset-Rotationsdruckmaschine mit den Druckwerken 1 und 2. Jedes Druckwerk 1, 2 enthält einen Formzylinder 3, 4 und einen Übertragungszylinder 5, 6. Am Formzylinder 3 sind Wälzelemente in Form von ersten und zweiten Rollen 7, 8 angeordnet (Fig. 2), und zwar sind die ersten und zweiten Rollen 7, 8 jeweils im Wechsel nebeneinander angeordnet. Jeweils zwei Rollen 7 sind auf einer Achse 10 drehbar gelagert, die an der Kolbenstange 11 eines Arbeitszylinders 12 befestigt ist. Analog dazu sind jeweils zwei Rollen 8 auf einer Achse 22 drehbar gelagert, die an der Kolbenstange 23 eines Arbeitszylinders 24 befestigt ist. Die Arbeitszylinder 12 und 24 sind an einer Traverse 13 angeordnet, die an einem schwenkbar in den Seitenwänden 14 des Druckwerks 1 gelagerten Walzenschutz 15 befestigt ist. Durch Hochschwenken des Walzenschutzes 15 um seinen Schwenkpunkt 34 in die in Fig. 1 strichpunktiert gezeichnete Stellung werden somit gleichzeitig die Rollen 7, 8 vom Formzylinder 3 weggeschwenkt, wobei letzterer gut zugänglich wird. Unter Verzicht auf diese Freilegmöglichkeit des Formzylinders 3 kann die Traverse 13 auch fest an den Seitenwänden 14 befestigt werden.The invention will be explained in more detail using an exemplary embodiment. The accompanying drawings show schematically:
Fig. 1
a double printing unit on average,
Fig. 2
the view Z of FIG. 1,
Fig. 3
the section III-III of FIG. 2,
Fig. 4
the section III-III of FIG. 2 when clamping the leading edge of the pressure plate,
Fig. 5
the section III-III of FIG. 2 when pulling the pressure plate,
Fig. 6
the section VI-VI of Fig. 2 when dismantling the pressure plate,
Fig. 7
the section VII-VII of FIG. 2nd
1 shows a printing unit of an offset rotary printing press with the printing units 1 and 2. Each printing unit 1, 2 contains a forme cylinder 3, 4 and a transfer cylinder 5, 6. On the forme cylinder 3 there are rolling elements in the form of first and second rollers 7, 8 arranged (Fig. 2), namely the first and second rollers 7, 8 are alternately arranged side by side. In each case two rollers 7 are rotatably mounted on an axis 10 which is fastened to the piston rod 11 of a working cylinder 12. Similarly, two rollers 8 are each rotatably mounted on an axis 22 which is fastened to the piston rod 23 of a working cylinder 24. The working cylinders 12 and 24 are arranged on a traverse 13 which is fastened to a roller protection 15 which is pivotably mounted in the side walls 14 of the printing unit 1. By pivoting the roller guard 15 about its pivot point 34 into the position shown in broken lines in FIG. 1, the rollers 7, 8 are thus simultaneously pivoted away from the forme cylinder 3, the latter being easily accessible. Dispensing with this possibility of exposing the forme cylinder 3, the cross member 13 can also be fixedly attached to the side walls 14.

Die Rollen 7, 8 haben einen Gummi- oder anderweitigen elastischen Belag, damit sie bei der Anlage an der Druckplatte diese nicht beschädigen. Die Ausführung kann auch dahingehend geändert sein, daß an einer Kolbenstange 11, 23 nur eine, ggf. breitere Rolle angeordnet wird. Im Grenzfall kann auch nur eine einzige erste Rolle zum Einsatz kommen, die etwa über eine Hälfte der Druckplatte reicht, während eine einzige zweite Rolle im Bereich der anderen Hälfte der Druckplatte anstellbar ist.The rollers 7, 8 have a rubber or other elastic covering so that they do not damage the pressure plate when it is in contact with it. The design can also be changed so that only one, possibly wider, roller is arranged on a piston rod 11, 23. In the limit case, only a single first roller can be used, which extends over about half of the printing plate, while a single second roller can be set in the area of the other half of the printing plate.

Die Rollen 7 und 8 mitsamt den Arbeitszylindern 12 und 24 und der Traverse 13 sind in einem Schmutzschutz 16 untergebracht. Letzterer ist kastenförmig ausgebildet und weist zum Formzylinder 3 hin eine schwenkbare Öffnungsklappe 17 auf. Am Schmutzschutz 16, genauer gesagt an der Traverse 13, ist ein Arbeitszylinder 18 befestigt, dessen Kolbenstange 19 über eine Koppel 20 gelenkig mit der Öffnungsklappe 17 zu deren Betätigung verbunden ist (Fig. 7).The rollers 7 and 8 together with the working cylinders 12 and 24 and the cross member 13 are housed in a dirt protection 16. The latter is box-shaped and has a pivotable opening flap 17 towards the forme cylinder 3. A working cylinder 18 is attached to the dirt guard 16, more precisely to the cross member 13, the piston rod 19 of which is articulated via a coupling 20 to the opening flap 17 for its actuation (FIG. 7).

Zur Montage der Druckplatte 25 wird diese zunächst mit ihrem vorlaufenden Ende an den Spannkanal 26 an den Formzylinder 3 herangeführt. Anschließend wird der Arbeitszylinder 18 umgesteuert und seine Kolbenstange 19 herausgefahren. Diese schwenkt dabei über die Koppel 20 die Öffnungsklappe 17 in die in Fig. 4 gezeichnete Öffnungstellung (Öffnungsstellung ist in Fig. 7 strichpunktiert gezeichnet). Danach werden durch Umsteuern der Arbeitszylinder 12 deren Kolbenstangen 11 herausgefahren und dadurch die Rollen 7 an den Formzylinder 3 angestellt. Die Rollen 7 klemmen nun die Vorderkante der Druckplatte 25. Beim anschließenden Drehen des Formzylinders 3 in der angegebenen Richtung (Fig. 4 und 5) wird die Druckplatte 25 auf den Formzylinder 3 aufgezogen. Sie wird dabei von der Bürstenwalze 27 gestützt. Außerdem wird durch den mit großen Radien gerundeten Walzenschutz 15 verhindert, daß sich das nachlaufende Ende der Druckplatte 25 verhakt. Beim Aufziehen der Druckplatte 25 stehen die Rollen 7 mit dem Formzylinder 3 in Rollkontakt und drücken die Druckplatte 25 an den Formzylinder 3 an. Die geöffnete Öffnungsklappe 17 dient dabei als Einlaufschutz für den Einlaufspalt 28 zwischen Formzylinder 3 und Rolle 7. Beim Aufziehen der Druckplatte ist von Vorteil, daß die Anlage des Übertragungszylinders 5 am Formzylinder 3 nicht benötigt wird. Statt dessen befindet sich der Übertragungszylinder 5 in der Druckabstellung, so daß bei einem Plattenwechsel, also sowohl bei der Plattenmontage, wie auch bei der weiter unten beschriebenen Plattendemontage die später zu bedruckende Bahn 29 nicht gekappt zu werden braucht.To assemble the printing plate 25, this is first brought up to the forme cylinder 3 with its leading end to the clamping channel 26. Then the working cylinder 18 is reversed and its piston rod 19 is moved out. This pivots the opening flap 17 via the coupling 20 into the open position shown in FIG. 4 (open position is shown in broken lines in FIG. 7). Thereafter, the piston rods 11 are moved out by reversing the working cylinders 12 and the rollers 7 are thereby placed against the forme cylinder 3. The rollers 7 now clamp the front edge of the printing plate 25. When the forme cylinder 3 is subsequently rotated in the direction indicated (FIGS. 4 and 5), the printing plate 25 is pulled onto the forme cylinder 3. It is supported by the brush roller 27. In addition, the roller guard 15, which is rounded with large radii, prevents the trailing end of the pressure plate 25 from getting caught. When the pressure plate 25 is pulled up, the rollers 7 are in rolling contact with the forme cylinder 3 and press the pressure plate 25 against the forme cylinder 3. The opened opening flap 17 serves as a run-in protection for the run-in gap 28 between forme cylinder 3 and roller 7. When the printing plate is pulled up, it is advantageous that the transfer cylinder 5 does not need to be in contact with the forme cylinder 3. Instead, the transfer cylinder 5 is in the printing position, so that the web 29 to be printed later does not need to be capped when changing the plate, that is to say both when mounting the plate and when removing the plate as described below.

In Fig. 6 ist die Demontage der Druckplatte 25 gezeigt. Die Öffnungsklappe 17 des Schmutzschutzes 16 befindet sich durch entsprechendes Ansteuern des Arbeitszylinders 18 bereits in der Öffnungsstellung. Durch Umsteuern der Arbeitszylinder 24 werden deren Kolbenstangen 23 aus der in Fig. 2 gezeigten Stellung in die in Fig. 6 gezeichnete Stellung gebracht, d. h. ausgefahren. Dadurch werden die Rollen 8 an den Formzylinder 3 herangefahren und liefern zu diesem den Abrollkontakt beim Abwickeln der Druckplatte 25. Es kommen also lediglich diese Rollen 8 mit der eingefärbten, zu demontierenden Druckplatte 25 in Kontakt und werden mit Farbe beschmutzt. Für die Montage einer neuen, sauberen Druckplatte 25 stehen dann wieder die sauberen Rollen 7 zur Verfügung.6 shows the disassembly of the pressure plate 25. The opening flap 17 of the dirt protection 16 is already in the open position by appropriately actuating the working cylinder 18. By reversing the working cylinders 24, their piston rods 23 are brought from the position shown in FIG. 2 to the position shown in FIG. H. extended. As a result, the rollers 8 are moved up to the forme cylinder 3 and supply the rolling contact to the latter when the printing plate 25 is being unwound. Thus, only these rollers 8 come into contact with the colored printing plate 25 which is to be removed and are soiled with paint. The clean rollers 7 are then again available for the assembly of a new, clean pressure plate 25.

Ein weiteres Wälzelement mit ersten und zweiten Rollen 7, 8 ist am Formzylinder 4 des unteren Druckwerkes 2 angeordnet. Die Befestigung der Rollen 7, 8 erfolgt am Walzenschutz 30, der im Schwenkpunkt 31 in den Seitenwänden 14 gelagert ist. Somit sind die ersten und zweiten Rollen 7, 8 zusammen mit dem Walzenschutz 30 um den Schwenkpunkt 31 vom Formzylinder 4 wegschwenkbar (strichpunktiert gezeichnete Lage in Fig. 1).Another rolling element with first and second rollers 7, 8 is arranged on the forme cylinder 4 of the lower printing unit 2. The rollers 7, 8 are attached to the roller guard 30, which is mounted in the pivot point 31 in the side walls 14. Thus, the first and second rollers 7, 8 together with the roller guard 30 can be pivoted away from the forme cylinder 4 about the pivot point 31 (position shown in broken lines in FIG. 1).

Die Arbeitszylinder 12, 18 und 24 werden vorteilhaft mit Druckluft betrieben. Dabei ist die Druckluft für den Arbeitszylinder 18 hinsichtlich ihres Druckes so begrenzt, daß die betätigte Öffnungsklappe 17 beim Öffnen oder Schließen die Hände einer Bedienperson nicht verletzt.The working cylinders 12, 18 and 24 are advantageously operated with compressed air. The compressed air for the working cylinder 18 is so limited in terms of its pressure that the actuated opening flap 17 does not injure an operator's hands when opening or closing.

Das Plattenspannsystem der Formzylinder 3, 4 selbst mitsamt der zugehörigen Betätigungselemente 32, 33 wird nicht beschrieben, da dies nicht Gegenstand der Erfindung ist.The plate clamping system of the forme cylinders 3, 4 itself together with the associated actuating elements 32, 33 is not described, since this is not the subject of the invention.

Claims (9)

Wälzelement zum Andrücken einer flexiblen Druckplatte an den Formzylinder eines Druckwerkes einer Rotationsdruckmaschine beim Plattenwechsel, wobei das Wälzelement aus mehreren längs des Mantels des Formzylinders angeordneten, einzeln an diesen anstellbaren Rollen besteht, dadurch gekennzeichnet, daß eine oder mehrere erste Rollen (7) bei der Montage der Druckplatte (25) und eine oder mehrere zweite Rollen (8) bei der Demontage der Druckplatte (25) im Bereich der Druckplatte (25) an den Formzylinder (3, 4) anstellbar sind.Rolling element for pressing a flexible printing plate against the forme cylinder of a printing unit of a rotary printing machine when changing plates, the rolling element consisting of a plurality of rollers which can be arranged along the jacket of the forme cylinder and can be adjusted individually, characterized in that one or more first rollers (7) during assembly the pressure plate (25) and one or more second rollers (8) can be adjusted to the forme cylinder (3, 4) in the area of the pressure plate (25) when the pressure plate (25) is removed. Wälzelement nach Anspruch 1, dadurch gekennzeichnet, daß erste und zweite Rollen (7, 8) jeweils im Wechsel nebeneinander am Formzylinder (3, 4) angeordnet sind.Rolling element according to claim 1, characterized in that first and second rollers (7, 8) are alternately arranged side by side on the forme cylinder (3, 4). Wälzelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jeweils eine oder zwei erste Rollen (7) mittels eines Arbeitszylinders (12) an den Formzylinder (3) anstellbar sind, wobei die Rollen (7) auf einer Achse (10) drehbar gelagert sind, die an der Kolbenstange (11) des Arbeitszylinders (12) befestigt ist.Rolling element according to claim 1 or 2, characterized in that in each case one or two first rollers (7) can be adjusted to the forme cylinder (3) by means of a working cylinder (12), the rollers (7) being rotatably mounted on an axis (10) , which is attached to the piston rod (11) of the working cylinder (12). Wälzelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jeweils eine oder zwei zweite Rollen (8) mittels eines Arbeitszylinders (24) an den Formzylinder (3) anstellbar sind, wobei die Rollen (8) auf einer Achse (22) drehbar gelagert sind, die an der Kolbenstange (23) des Arbeitszylinders (24) befestigt ist.Rolling element according to claim 1 or 2, characterized in that in each case one or two second rollers (8) can be adjusted to the forme cylinder (3) by means of a working cylinder (24), the rollers (8) being rotatably mounted on an axis (22) , which is attached to the piston rod (23) of the working cylinder (24). Wälzelement nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Arbeitszylinder (12, 24) an einer Traverse (13) angeordnet sind, die an einem schwenkbar in den Seitenwänden (14) des Druckwerks (1, 2) gelagerten Walzenschutz (15, 30) befestigt ist.Rolling element according to Claim 3 or 4, characterized in that the working cylinders (12, 24) are arranged on a crossmember (13) which are mounted on a roller guard (15, 30) which is pivotably mounted in the side walls (14) of the printing unit (1, 2) ) is attached. Wälzelement zum Andrücken einer flexiblen Druckplatte an den Formzylinder einer Rotationsdruckmaschine beim Plattenwechsel, wobei das Wälzelement an den Formzylinder anstellbar ist, insbesondere nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Wälzelement (7, 8) in einem Schmutzschutz (16) angeordnet ist, der aus dem Verstellbereich des Wälzelements (7, 8) wegfahrbar ist.Rolling element for pressing a flexible printing plate against the forme cylinder of a rotary printing machine when changing plates, the rolling element being adjustable against the forme cylinder, in particular according to one of claims 1 to 5, characterized in that the rolling element (7, 8) is arranged in a dirt guard (16) which can be moved away from the adjustment range of the rolling element (7, 8). Wälzelement nach Anspruch 6, dadurch gekennzeichnet, daß der Schmutzschutz (16) kastenförmig ausgebildet ist und zum Formzylinder (3) hin eine schwenkbare Öffnungsklappe (17) aufweist.Rolling element according to claim 6, characterized in that the dirt protection (16) is box-shaped and has a pivotable opening flap (17) towards the forme cylinder (3). Wälzelement nach Anspruch 7, dadurch gekennzeichnet, daß an dem Schmutzschutz (16) ein Arbeitszylinder (18) befestigt ist, dessen Kolbenstange (19) über eine Koppel (20) gelenkig mit der Öffnungsklappe (17) zu deren Betätigung verbunden ist.Rolling element according to claim 7, characterized in that a working cylinder (18) is fastened to the dirt protection (16), the piston rod (19) of which is articulated to the opening flap (17) for actuating it via a coupling (20). Wälzelement nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Öffnungsklappe (17) im geöffneten Zustand als Schutz für den Einlaufspalt zwischen der Rolle (8) und dem Formzylinder (3) dient.Rolling element according to claim 7 or 8, characterized in that the opening flap (17) serves in the open state as protection for the inlet gap between the roller (8) and the forme cylinder (3).
EP95117485A 1994-11-10 1995-11-07 Pressure roll for pressing a flexible printing plate against the forme cylinder Expired - Lifetime EP0712725B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4440239A DE4440239C5 (en) 1994-11-10 1994-11-10 Rolling element for pressing a flexible pressure plate to the forme cylinder
DE4440239 1994-11-10

Publications (4)

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EP0712725A2 true EP0712725A2 (en) 1996-05-22
EP0712725A3 EP0712725A3 (en) 1996-06-05
EP0712725B1 EP0712725B1 (en) 1999-05-12
EP0712725B2 EP0712725B2 (en) 2004-09-01

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EP95117485A Expired - Lifetime EP0712725B2 (en) 1994-11-10 1995-11-07 Pressure roll for pressing a flexible printing plate against the forme cylinder

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US (1) US5617792A (en)
EP (1) EP0712725B2 (en)
JP (1) JP2922141B2 (en)
DE (2) DE4440239C5 (en)

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DE10238177B3 (en) * 2002-08-21 2004-02-05 Koenig & Bauer Ag Web-fed printing machine has printer unit printing width of six axially adjacent pages, with superstructure, at least one roller and folder and two printing towers
US6792860B2 (en) 2000-05-17 2004-09-21 Koenig & Bauer Aktiengesellschaft Method and device for pressing a packing against a cylinder
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DE102006050568B3 (en) * 2006-10-26 2008-01-10 Koenig & Bauer Aktiengesellschaft Press-on device for pressing a lifting device onto a cylinder in a rotating roller printing machine adjusts press-on rollers onto the cylinder when fitted alongside each other in the cylinder's axial direction
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EP0739728A2 (en) * 1995-04-26 1996-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Process and device for attaching a printing plate to a cylinder
US6345575B1 (en) 1998-11-13 2002-02-12 Heidelberger Druckmaschinen Ag Pivotable printing-form changing device and method for changing printing forms
US6792860B2 (en) 2000-05-17 2004-09-21 Koenig & Bauer Aktiengesellschaft Method and device for pressing a packing against a cylinder
US6779452B2 (en) 2000-05-17 2004-08-24 Koenig & Bauer Aktiengesellschaft Devices for pressing a blanket on a cylinder
WO2001087613A1 (en) * 2000-05-17 2001-11-22 Koenig & Bauer Aktiengesellschaft Method and devices for pressing a blanket against a cylinder
WO2001087614A1 (en) * 2000-05-17 2001-11-22 Koenig & Bauer Aktiengesellschaft Devices for pressing a blanket on a cylinder
US7159512B2 (en) 2001-10-05 2007-01-09 Koenig & Bauer Aktiengesellschaft Printing unit and a rotary roller printing press
US7448320B2 (en) 2001-10-05 2008-11-11 Koenig & Bauer Aktiengesellschaft Printing unit and a rotary roller printing press
US7562623B2 (en) 2001-10-05 2009-07-21 Koenig & Bauer Aktiengesellschaft Printing unit and a rotary roller printing press
US7546801B2 (en) 2001-10-05 2009-06-16 Koenig & Bauer Aktiengesellschaft Printing unit and a rotary roller printing press
EP1543967A2 (en) 2002-08-21 2005-06-22 Koenig & Bauer Aktiengesellschaft Method for tightening a covering on a cylinder and method for slackening a covering on a cylinder of a printing press
DE10238179B3 (en) * 2002-08-21 2004-01-08 Koenig & Bauer Ag Device for guiding an elevator to a cylinder of a printing press
US7237483B2 (en) 2002-08-21 2007-07-03 Koenig & Bauer Aktiengesellschaft Device for guiding a dressing on a cylinder of a printing press
US7237484B2 (en) 2002-08-21 2007-07-03 Koenig & Bauer Aktiengesellschaft Device and method for pressing a dressing on a cylinder of a printing machine
US7240616B2 (en) 2002-08-21 2007-07-10 Koenig & Bauer Aktiengesellschaft Device and method for pressing a tympan to a cylinder of a printing machine by means of pressing elements
WO2004020205A2 (en) 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Devices for the pressing of a tympan to a cylinder of a printing machine and method for tightening or slackening said tympan
EP1535735A2 (en) 2002-08-21 2005-06-01 Koenig & Bauer Aktiengesellschaft Method for pressing a covering on a cylinder of a printing machine
DE10238177B3 (en) * 2002-08-21 2004-02-05 Koenig & Bauer Ag Web-fed printing machine has printer unit printing width of six axially adjacent pages, with superstructure, at least one roller and folder and two printing towers
EP1712359A3 (en) * 2005-04-13 2011-03-16 manroland AG Device and process for pressing a covering against a rotary press printing cylinder
DE102006050568B3 (en) * 2006-10-26 2008-01-10 Koenig & Bauer Aktiengesellschaft Press-on device for pressing a lifting device onto a cylinder in a rotating roller printing machine adjusts press-on rollers onto the cylinder when fitted alongside each other in the cylinder's axial direction

Also Published As

Publication number Publication date
JPH08207249A (en) 1996-08-13
EP0712725B2 (en) 2004-09-01
EP0712725A3 (en) 1996-06-05
EP0712725B1 (en) 1999-05-12
US5617792A (en) 1997-04-08
DE4440239C2 (en) 1999-09-30
DE59505896D1 (en) 1999-06-17
DE4440239A1 (en) 1996-05-15
JP2922141B2 (en) 1999-07-19
DE4440239C5 (en) 2007-11-22

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