EP1090754A1 - Device for changing a cylindrical printing sleeve - Google Patents

Device for changing a cylindrical printing sleeve Download PDF

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Publication number
EP1090754A1
EP1090754A1 EP99119764A EP99119764A EP1090754A1 EP 1090754 A1 EP1090754 A1 EP 1090754A1 EP 99119764 A EP99119764 A EP 99119764A EP 99119764 A EP99119764 A EP 99119764A EP 1090754 A1 EP1090754 A1 EP 1090754A1
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EP
European Patent Office
Prior art keywords
cylinder
cylinder sleeve
printing
sleeve
ejector
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
EP99119764A
Other languages
German (de)
French (fr)
Other versions
EP1090754B1 (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 DE59906531T priority Critical patent/DE59906531D1/en
Priority to ES99119764T priority patent/ES2205666T3/en
Priority to EP19990119764 priority patent/EP1090754B1/en
Publication of EP1090754A1 publication Critical patent/EP1090754A1/en
Application granted granted Critical
Publication of EP1090754B1 publication Critical patent/EP1090754B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a device for changing a printing cylinder sleeve in a printing press with a frame that has a drive side and an operating side has and in which a cylinder core receiving the impression cylinder sleeve is mounted in such a way that the pressure cylinder sleeve extends axially to the operating side pull off.
  • the clichés are on a printing cylinder sleeve or a so-called sleeve, which is releasably attached to a pressure cylinder core is postponed.
  • the change can be made when converting the printing press of the sleeves in the machine frame, so that the pressure cylinder core in the frame can remain. All that is needed for the sleeve to be removed is all that is needed removed the bearing for the cylinder core located on the operating side become. The cylinder core is then boom-like by the one on the opposite Side bearing held.
  • the end of the printing cylinder on the operating side is often only poorly accessible, making it difficult to put a new sleeve all over the cylinder core to be pushed open and / or the sleeve to be removed by hand or with the help of a robot at the end to pull it off the cylinder core.
  • the object of the invention is therefore to provide a device which Replacing the pressure cylinder sleeve made easier.
  • This object is achieved by one on the drive side arranged on the frame, acting on the end face of the pressure cylinder sleeve Ejector and / or one arranged on the drive side of the frame Retraction claw, which can be detached into a recess on the edge of the pressure cylinder sleeve intervenes.
  • drive side refers to the side of the printing press frame designated, which is opposite to the operator side. Usually is on this page also the drive for the various cylinders of the printing press arranged. However, this is not a necessary feature of the invention.
  • the bearings for the pressure cylinder core are preferably mounted on slides, which allow the impression cylinder to be placed against the impression cylinder.
  • a particularly preferred embodiment of the invention is the pusher and / or the retraction claw in one position with respect to the machine frame arranged on or near one by the axis of the cylinder core straight and parallel to the movement path of the slide lies.
  • the cylinder core can then be used to change the printing cylinder sleeve position using the slide so that the end face of the pressure cylinder sleeve comes to a position opposite the ejector.
  • Different Diameters of the cylinder core and / or the printing cylinder sleeve can then taken into account by appropriate positioning of the slide become stationary, so that it is possible for the ejector or the retraction claw to be arranged on the machine frame.
  • Figure 1 shows a view of the operator side of a flexographic press, i.e. to the side from which operating operations such as changing a printing cylinder sleeve.
  • the printing press has a frame 10 which is formed by two side parts 12 and 14, In Figure 1 shows only the side part 12. Between the side parts 12 and 14, an impression cylinder 16 is mounted, on the circumference of which several inking units 18 are arranged. Each inking unit 18 comprises an impression cylinder 20 and an application roller 22. In the side part 12 there is a window for each inking unit 18 24 recessed by the ends of the impression cylinder 20 and the applicator roller 22 are accessible.
  • the impression cylinders 20 and the application rollers 22 are individual stored in slides 26 and 28, which are independently along guide rails 30 are movable.
  • the guide rails 30 are each below of the associated window 24 on the inside of the side part 12 or 14 appropriate.
  • On the operating side are the bearings for the printing cylinders 20 and Applicator rollers 22 are designed as folding bearings or removable bearings
  • the printing cylinder 20 and the application roller are 22 on the opposite drive side of the drive side each in the associated slide 26 and 28 mounted.
  • Figures 1 and 2a show the printing press in the state in which the printing cylinder 20 is employed on the circumference of the impression cylinder 16 and the Applicator roller 22 is employed on the circumference of the printing cylinder 20.
  • FIG 2b are the pressure cylinder 20 and the application roller 22 with the aid of the slide 26 and 28 have been returned to their parked positions.
  • the diameter of the impression cylinder 20 varies according to that for the respective one Print order prescribed print length.
  • the drives for the sledges 26 are so based on the known diameter of the impression cylinder 20 controlled that the outer peripheral edge of the impression cylinder on that of the applicator roller 22 always facing side with the ejection and retraction device 32 is aligned.
  • the bearing is in the state shown in FIG. 2b for the pressure cylinder 20 on the operating side (on the side part 12) axially from the Axis of the impression cylinder has been pulled off, so that it can then be used of the carriage 26 can be moved to the side, as shown in FIG. 2c.
  • the impression cylinder is then due to the double bearing on the opposite side held on the side part 14 in a boom-like manner.
  • the pressure cylinder 20 has a cylinder core 36 onto which a printing cylinder sleeve 38 bearing the clichés is postponed.
  • the pressure cylinder sleeve 38 with the help of the ejection and retraction device 32 shifted a little on the cylinder core 36 been so that it is easily accessible on the operator side in the window 24 lies and then easily by hand or with the help of a robot can be deducted entirely from the cylinder core 36.
  • An actuating cylinder 40 is fixedly mounted on the console 34.
  • the free end of the The piston rod of this actuating cylinder 40 forms an ejector 42 for the pressure cylinder sleeve 38.
  • a retraction claw 44 is articulated on the ejector 42 and pivotable with the aid of a smaller actuating cylinder 46. If the pusher 42 rests on the end face of the pressure cylinder sleeve 38 and the actuating cylinder 46 is extended, the retraction claw 44 engages with its hook-shaped cranked end in a hole 48 which is close to the edge in the impression cylinder sleeve 38 is formed.
  • the pressure cylinder 20 is arranged with respect to the ejector 42 that this only the pressure cylinder sleeve 38 but not the cylinder core 36. If the impression cylinder sleeve 38 is to be removed from the cylinder core, then so first the interior of the cylinder core 36 with compressed air in a known manner acted upon. The pressure acts on the inside through holes 50 in the cylinder core the pressure cylinder sleeve 38 so that it is easily expanded and can be easily moved on the cylinder core. Then with the help of the actuating cylinder 40, the ejector 42 is extended so that it is the printing cylinder sleeve pushes a distance from the cylinder core 36, as shown in Figure 4 is. The retraction claw 44 remains in the released state, so that the cylinder sleeve can be pulled off further by hand.
  • FIG. 5 schematically shows an interior view of the side part 14 of the frame 10.
  • a part of the window 24 and a section of the guide rail can be seen 30 on which the carriage 26 is guided.
  • On the sled 26 it is Double bearing 52 mounted for the impression cylinder.
  • the cylinder core 36 and the Printing cylinder sleeve 38 are shown in dash-dot lines.
  • the ejection and retractor 32 shown. This device is on the same Height as the axis of the impression cylinder defined by the double bearing 52.
  • the carriage 26 is driven by an electronic control unit 54, into which the diameter of the impression cylinder is entered, controlled that the ejector 42 acts on the pressure cylinder sleeve 38 but not the End face of the cylinder core 36.
  • FIG. 5 shows the cylinder core 36 'and the pressure cylinder sleeve 38' as an example. of a printing cylinder with a larger diameter is shown in dash-dot lines. The associated position of the carriage 26 is also indicated by dash-dotted lines.
  • the ejection and retraction device could 32 also arranged on the upper or lower vertex of the printing cylinder his. In this case, however, it should also be adjustable in height to allow adaptation to different diameters of the printing cylinder.

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  • Rotary Presses (AREA)

Abstract

The framework has a drive side and a handling side. A cylinder core (36) containing the printing cylinder sleeve (38) is mounted in the framework so that the sleeve can be axially withdrawn on the handling side. An ejector (42) positioned on the drive side of the framework acts upon the end surface of the printing cylinder sleeve, and or a withdrawing-claw (44) on the drive side of the framework fits into a recess (48) on the edge of the printing cylinder sleeve.

Description

Die Erfindung betrifft eine Vorrichtung zum Wechseln einer Druckzylinderhülse in einer Druckmaschine mit einem Gestell, das eine Antriebsseite und eine Bedienseite aufweist und in dem ein die Druckzylinderhülse aufnehmender Zylinderkern derart gelagert ist, daß sich die Druckzylinderhülse axial zur Bedienseite hin abziehen läßt.The invention relates to a device for changing a printing cylinder sleeve in a printing press with a frame that has a drive side and an operating side has and in which a cylinder core receiving the impression cylinder sleeve is mounted in such a way that the pressure cylinder sleeve extends axially to the operating side pull off.

Bei einigen Druckmaschinen sind die Klischees auf einer Druckzylinderhülse oder einem sogenannten Sleeve befestigt, das lösbar auf einen Druckzylinderkern aufgeschoben ist. Beim Umrüsten der Druckmaschine kann der Wechsel des Sleeves im Maschinengestell erfolgen, so daß der Druckzylinderkern im Gestell verbleiben kann. Damit das Sleeve abgezogen werden kann, braucht lediglich das auf der Bedienseite befindliche Lager für den Zylinderkern entfernt zu werden. Der Zylinderkern wird dann auslegerartig durch das auf der gegenüberliegenden Seite befindliche Lager gehalten.In some printing machines, the clichés are on a printing cylinder sleeve or a so-called sleeve, which is releasably attached to a pressure cylinder core is postponed. The change can be made when converting the printing press of the sleeves in the machine frame, so that the pressure cylinder core in the frame can remain. All that is needed for the sleeve to be removed is all that is needed removed the bearing for the cylinder core located on the operating side become. The cylinder core is then boom-like by the one on the opposite Side bearing held.

Häufig ist jedoch das auf der Bedienseite gelegene Ende des Druckzylinders nur schlecht zugänglich, so daß es schwierig ist, ein neues Sleeve ganz auf den Zylinderkern aufzuschieben und/oder das zu entfernende Sleeve mit der Hand oder mit Hilfe eines Roboters am Ende zu erfassen, um es vom Zylinderkern abzuziehen.However, the end of the printing cylinder on the operating side is often only poorly accessible, making it difficult to put a new sleeve all over the cylinder core to be pushed open and / or the sleeve to be removed by hand or with the help of a robot at the end to pull it off the cylinder core.

Aufgabe der Erfindung ist es deshalb, eine Vorrichtung zu schaffen, die das Auswechseln der Druckzylinderhülse erleichtert.The object of the invention is therefore to provide a device which Replacing the pressure cylinder sleeve made easier.

Diese Aufgabe wird erfindungsgemäß gelöst durch einen auf der Antriebsseite des Gestells angeordneten, auf die Stirnfläche der Druckzylinderhülse wirkenden Ausstoßer und/oder eine auf der Antriebsseite des Gestells angeordnete Rückziehkralle, die lösbar in eine Vertiefung am Rand der Druckzylinderhülse eingreift.This object is achieved by one on the drive side arranged on the frame, acting on the end face of the pressure cylinder sleeve Ejector and / or one arranged on the drive side of the frame Retraction claw, which can be detached into a recess on the edge of the pressure cylinder sleeve intervenes.

Mit Hilfe des Ausstoßers, der durch einen Stellantrieb, beispielsweise einen Pneumatikzylinder, angetrieben ist, wird die auf dem Zylinderkern sitzende Druckzylinderhülse ein Stück weit in Richtung auf die Bedienseite verschoben, so daß sie sich dort bequemer erfassen und ganz abziehen läßt. Das Aufschieben einer neuen Druckzylinderhülse auf den Zylinderkern wird durch die gleichfalls durch einen Stellantrieb angetriebene Rückziehkralle erleichtert. Die Druckzylinderhülse braucht dann von der Bedienseite her nicht ganz auf den Zylinderkern aufgeschoben zu werden, sondern nur so weit, daß das entgegengesetzte Ende von der Rückziehkralle erfaßt werden kann. Mit Hilfe der Rückziehkralle wird die Druckzylinderhülse dann in ihre endgültige axiale Position auf den Zylinderkern gezogen. Besonders vorteilhaft ist naturgemäß eine Vorrichtung, die sowohl einen Ausstoßer als auch eine Rückziehkralle aufweist.With the help of the ejector by an actuator, for example a Pneumatic cylinder, which is driven, is the one sitting on the cylinder core Printing cylinder sleeve shifted a little towards the operating side, so that it can be grasped there more easily and pulled off completely. The postponement A new impression cylinder sleeve on the cylinder core is also replaced by the retraction claw driven by an actuator. The Printing cylinder sleeve then does not need to be completely on the operator side Cylinder core to be pushed open, but only so far that the opposite End can be caught by the retraction claw. With the help of the retraction claw the printing cylinder sleeve is then in its final axial position drawn on the cylinder core. Of course, a device that is particularly advantageous is which has both an ejector and a retraction claw.

Mit dem Begriff "Antriebsseite" wird in dieser Anmeldung die Seite des Druckmaschinengestells bezeichnet, die der Bedienseite entgegengesetzt ist. Zumeist ist auf dieser Seite auch der Antrieb für die verschiedenen Zylinder der Druckmaschine angeordnet. Dies ist jedoch kein notwendiges Merkmal der Erfindung.In this application, the term "drive side" refers to the side of the printing press frame designated, which is opposite to the operator side. Mostly is on this page also the drive for the various cylinders of the printing press arranged. However, this is not a necessary feature of the invention.

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

Die Lager für den Druckzylinderkern sind vorzugsweise auf Schlitten montiert, die es gestatten, den Druckzylinder an den Gegendruckzylinder anzustellen. In einer besonders bevorzugten Ausführungsform der Erfindung ist der Ausstoßer und/oder die Rückziehkralle in bezug auf das Maschinengestell in einer Position angeordnet, die auf oder in der Nähe einer durch die Achse des Zylinderkems gehenden und parallel zur Bewegungsbahn des Schlittens verlaufenden Geraden liegt. Für den Wechsel der Druckzylinderhülse läßt sich dann der Zylinderkern mit Hilfe des Schlittens so positionieren, daß die Stirnfläche der Druckzylinderhülse in eine dem Ausstoßer gegeüberliegende Position kommt. Unterschiedlichen Durchmessern des Zylinderkerns und/oder der Druckzylinderhülse kann dann durch entsprechende Positionierung des Schlittens Rechnung getragen werden, so daß es möglich ist, den Ausstoßer bzw. die Rückziehkralle stationär am Maschinengestell anzuordnen.The bearings for the pressure cylinder core are preferably mounted on slides, which allow the impression cylinder to be placed against the impression cylinder. In A particularly preferred embodiment of the invention is the pusher and / or the retraction claw in one position with respect to the machine frame arranged on or near one by the axis of the cylinder core straight and parallel to the movement path of the slide lies. The cylinder core can then be used to change the printing cylinder sleeve position using the slide so that the end face of the pressure cylinder sleeve comes to a position opposite the ejector. Different Diameters of the cylinder core and / or the printing cylinder sleeve can then taken into account by appropriate positioning of the slide become stationary, so that it is possible for the ejector or the retraction claw to be arranged on the machine frame.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. The following is an embodiment of the invention with reference to the drawing explained in more detail.

Es zeigen:

Fig. 1 eine
Teil-Seitenansicht einer Druckmaschine;
Fig. 2a bis 2c
Schnitte längs der Linie II-II in Figur 2 für unterschiedliche Zustände der Druckmaschine während eines Wechsels der Druckzylinderhülse;
Fig. 3 und 4
unterschiedliche Zustände eines Ausstoßers und einer Rückziehkralle in der Draufsicht; und
Fig. 5
den Ausstoßer und die Rückziehkralle in einer Stirnansicht.
Show it:
Fig. 1 a
Partial side view of a printing press;
2a to 2c
Sections along the line II-II in Figure 2 for different states of the printing press during a change of the printing cylinder sleeve;
3 and 4
different states of an ejector and a retraction claw in plan view; and
Fig. 5
the ejector and the retracting claw in a front view.

Figur 1 zeigt eine Ansicht auf die Bedienseite einer Flexodruckmaschine, d.h. auf die Seite, von der aus Bedienungsoperationen wie beispielsweise das Auswechseln einer Druckzylinderhülse vorgenommen werden. Die Druckmaschine weist ein Gestell 10 auf, das durch zwei Seitenteile 12 und 14 gebildet wird, In Figur 1 ist nur das Seitenteil 12 zu erkennen. Zwischen den Seitenteilen 12 und 14 ist ein Gegendruckzylinder 16 gelagert, an dessen Umfang mehrere Farbwerke 18 angeordnet sind. Jedes Farbwerk 18 umfaßt einen Druckzylinder 20 und eine Auftragwalze 22. In dem Seitenteil 12 ist für jedes Farbwerk 18 ein Fester 24 ausgespart, durch das die Enden des Druckzylinders 20 und der Auftragwalze 22 zugänglich sind. Die Druckzylinder 20 und die Auftragwalzen 22 sind einzeln in Schlitten 26 und 28 gelagert, die unabhängig voneinander längs Führungsschienen 30 verfahrbar sind. Die Führungsschienen 30 sind jeweils unterhalb des zugehörigen Fensters 24 auf der Innenseite des Seitenteils 12 bzw. 14 angebracht. Auf der Bedienseite sind die Lager für die Druckzylinder 20 und die Auftragwalzen 22 als Klapplager oder entfernbare Lager ausgebildet.Figure 1 shows a view of the operator side of a flexographic press, i.e. to the side from which operating operations such as changing a printing cylinder sleeve. The printing press has a frame 10 which is formed by two side parts 12 and 14, In Figure 1 shows only the side part 12. Between the side parts 12 and 14, an impression cylinder 16 is mounted, on the circumference of which several inking units 18 are arranged. Each inking unit 18 comprises an impression cylinder 20 and an application roller 22. In the side part 12 there is a window for each inking unit 18 24 recessed by the ends of the impression cylinder 20 and the applicator roller 22 are accessible. The impression cylinders 20 and the application rollers 22 are individual stored in slides 26 and 28, which are independently along guide rails 30 are movable. The guide rails 30 are each below of the associated window 24 on the inside of the side part 12 or 14 appropriate. On the operating side are the bearings for the printing cylinders 20 and Applicator rollers 22 are designed as folding bearings or removable bearings.

Wie in Figur 2a zu erkennen ist, sind der Druckzylinder 20 und die Auftragwalze 22 auf der der Bedienseite entgegengesetzten Antriebsseite jeweils zweifach in dem zugehörigen Schlitten 26 bzw. 28 gelagert. Außerdem erkennt man in Figur 2a eine Ausstoß- und Rückziehvorrichtung 32, die mit Hilfe einer Konsole 34 ortsfest in bezug auf das Seitenteil 14 gehalten ist.As can be seen in FIG. 2a, the printing cylinder 20 and the application roller are 22 on the opposite drive side of the drive side each in the associated slide 26 and 28 mounted. You can also see in figure 2a an ejection and retraction device 32, which is operated with the aid of a console 34 is held stationary with respect to the side part 14.

Figuren 1 und 2a zeigen die Druckmaschine in dem Zustand, in dem der Druckzylinder 20 an den Umfang des Gegendruckzylinders 16 angestellt ist und die Auftragwalze 22 an den Umfang des Druckzylinders 20 angestellt ist. In Figur 2b sind der Druckzylinder 20 und die Auftragwalze 22 mit Hilfe der Schlitten 26 und 28 in ihre abgestellten Positionen zurückgefahren worden.Figures 1 and 2a show the printing press in the state in which the printing cylinder 20 is employed on the circumference of the impression cylinder 16 and the Applicator roller 22 is employed on the circumference of the printing cylinder 20. In figure 2b are the pressure cylinder 20 and the application roller 22 with the aid of the slide 26 and 28 have been returned to their parked positions.

Der Durchmesser des Druckzylinders 20 variiert entsprechend der für den jeweiligen Druckauftrag vorgeschriebenen Drucklänge. Die Antriebe für die Schlitten 26 werden anhand des bekannten Durchmessers des Druckzylinders 20 so gesteuert, daß der äußere Umfangsrand des Druckzylinders auf der der Auftragwalze 22 zugewandten Seite stets mit der Ausstoß- und Rückziehvorrichtung 32 ausgerichtet ist. Weiterhin ist in dem in Figur 2b gezeigten Zustand das Lager für den Druckzylinder 20 auf der Bedienseite (am Seitenteil 12) axial von der Achse des Druckzylinders abgezogen worden, so daß es anschließend mit Hilfe des Schlittens 26 zur Seite bewegt werden kann, wie Figur 2c zeigt. Der Druckzylinder wird dann durch die Zweifachlagerung auf der entgegengesetzten Seite auslegerartig am Seitenteil 14 gehalten.The diameter of the impression cylinder 20 varies according to that for the respective one Print order prescribed print length. The drives for the sledges 26 are so based on the known diameter of the impression cylinder 20 controlled that the outer peripheral edge of the impression cylinder on that of the applicator roller 22 always facing side with the ejection and retraction device 32 is aligned. Furthermore, the bearing is in the state shown in FIG. 2b for the pressure cylinder 20 on the operating side (on the side part 12) axially from the Axis of the impression cylinder has been pulled off, so that it can then be used of the carriage 26 can be moved to the side, as shown in FIG. 2c. The impression cylinder is then due to the double bearing on the opposite side held on the side part 14 in a boom-like manner.

Wie weiterhin in Figur 2c zu erkennen ist, weist der Druckzylinder 20 einen Zylinderkern 36 auf, auf den eine die Klischees tragende Druckzylinderhülse 38 aufgeschoben ist. In Figur 2c ist die Druckzylinderhülse 38 mit Hilfe der Ausstoß- und Rückziehvorrichtung 32 ein Stück weit auf dem Zylinderkern 36 verschoben worden, so daß sie auf der Bedienseite bequem zugänglich in dem Fenster 24 liegt und sich dann von Hand oder mit Hilfe eines Roboters problemlos ganz vom Zylinderkern 36 abziehen läßt.As can also be seen in FIG. 2c, the pressure cylinder 20 has a cylinder core 36 onto which a printing cylinder sleeve 38 bearing the clichés is postponed. In Figure 2c, the pressure cylinder sleeve 38 with the help of the ejection and retraction device 32 shifted a little on the cylinder core 36 been so that it is easily accessible on the operator side in the window 24 lies and then easily by hand or with the help of a robot can be deducted entirely from the cylinder core 36.

Der Aufbau und die Wirkungsweise der Ausstoß- und Rückziehvorrichtung 32 werden nachstehend anhand der Figuren 3 und 4 näher erläutert.The structure and operation of the ejecting and retracting device 32 are explained below with reference to Figures 3 and 4.

Ein Stellzylinder 40 ist ortsfest auf der Konsole 34 montiert. Das freie Ende der Kolbenstange dieses Stellzylinders 40 bildet einen Ausstoßer 42 für die Druckzylinderhülse 38. Eine Rückziehkralle 44 ist gelenkig an dem Ausstoßer 42 gehalten und mit Hilfe eines kleineren Stellzylinders 46 schwenkbar. Wenn der Ausstoßer 42 an der Stirnfläche der Druckzylinderhülse 38 anliegt und der Stellzylinder 46 ausgefahren wird, so greift die Rückziehkralle 44 mit ihrem hakenförmig gekröpften Ende in ein Loch 48, das in Randnähe in der Druckzylinderhülse 38 ausgebildet ist. An actuating cylinder 40 is fixedly mounted on the console 34. The free end of the The piston rod of this actuating cylinder 40 forms an ejector 42 for the pressure cylinder sleeve 38. A retraction claw 44 is articulated on the ejector 42 and pivotable with the aid of a smaller actuating cylinder 46. If the pusher 42 rests on the end face of the pressure cylinder sleeve 38 and the actuating cylinder 46 is extended, the retraction claw 44 engages with its hook-shaped cranked end in a hole 48 which is close to the edge in the impression cylinder sleeve 38 is formed.

Der Druckzylinder 20 ist so in bezug auf den Ausstoßer 42 angeordnet, daß dieser nur die Druckzylinderhülse 38 aber nicht den Zylinderkern 36 beaufschlagt. Wenn die Druckzylinderhülse 38 vom Zylinderkern abgezogen werden soll, so wird zunächst in bekannter Weise das Innere des Zylinderkerns 36 mit Druckluft beaufschlagt. Der Druck wirkt über Löcher 50 im Zylinderkern auf die Innenseite der Druckzylinderhülse 38, so daß diese leicht aufgeweitet wird und sich leichtgängig auf dem Zylinderkern verschieben läßt. Anschließend wird mit Hilfe des Stellzylinders 40 der Ausstoßer 42 ausgefahren, so daß er die Druckzylinderhülse ein Stück weit vom Zylinderkern 36 abschiebt, wie in Figur 4 dargestellt ist. Die Rückziehkralle 44 bleibt jedoch im gelösten Zustand, so daß sich die Zylinderhülse von Hand weiter abziehen läßt.The pressure cylinder 20 is arranged with respect to the ejector 42 that this only the pressure cylinder sleeve 38 but not the cylinder core 36. If the impression cylinder sleeve 38 is to be removed from the cylinder core, then so first the interior of the cylinder core 36 with compressed air in a known manner acted upon. The pressure acts on the inside through holes 50 in the cylinder core the pressure cylinder sleeve 38 so that it is easily expanded and can be easily moved on the cylinder core. Then with With the help of the actuating cylinder 40, the ejector 42 is extended so that it is the printing cylinder sleeve pushes a distance from the cylinder core 36, as shown in Figure 4 is. The retraction claw 44 remains in the released state, so that the cylinder sleeve can be pulled off further by hand.

Wenn eine neue Zylinderhülse 38 aufgeschoben wird, so wird sie zunächst von Hand auf den Zylinderkern 36 aufgeschoben, bis sie mit ihrer Stirnseite am Ausstoßer 42 anschlägt, der sich in der in Figur 4 gezeigten Position befindet. Anschließend wird der Stellzylinder 46 betätigt, so daß die Rückziehkralle 44 in das Loch 48 eingreift. Dieser Vorgang kann ggf. auch automatisch dadurch ausgelöst werden, daß der Anschlag der Druckzylinderhülse am Ausstoßer 42 mit Hilfe eines Schalters abgetastet wird. Wenn die Rückziehkralle 44 die Druckzylinderhülse 38 erfaßt hat, wird die Kolbenstange des Stellzylinders 40 zurückgezogen, so daß die Druckzylinderhülse die in Figur 3 gezeigte axiale Position erreicht. Anschließend wird die Rückziehkralle 44 wieder gelöst, und der Ausstoßer 42 kann weiter zurückgezogen werden, damit die Betriebsabläufe während des Druckvorgangs nicht behindert werden.When a new cylinder sleeve 38 is pushed on, it is first of all Hand pushed onto the cylinder core 36 until it is with its front side on Ejector 42 strikes, which is in the position shown in Figure 4. Then the actuating cylinder 46 is actuated so that the retracting claw 44 in the hole 48 engages. This process can also be triggered automatically if necessary be that the stop of the pressure cylinder sleeve on the ejector 42 with Is sensed using a switch. When the retraction claw 44 the printing cylinder sleeve 38 has detected, the piston rod of the actuating cylinder 40 is withdrawn, so that the pressure cylinder sleeve reaches the axial position shown in Figure 3. Then the retraction claw 44 is released and the ejector 42 can be withdrawn further so that operations continue during the printing process are not hindered.

Figur 5 zeigt schematisch eine Innenansicht des Seitenteils 14 des Gestells 10. Man erkannt einen Teil des Fensters 24 sowie einen Abschnitt der Führungsschiene 30, auf der der Schlitten 26 geführt ist. Auf dem Schlitten 26 ist das Zweifachlager 52 für den Druckzylinder montiert. Der Zylinderkern 36 und die Druckzylinderhülse 38 sind strichpunktiert eingezeichnet. Weiterhin ist die Ausstoß- und Rückziehvorrichtung 32 dargestellt. Diese Vorrichtung liegt auf gleicher Höhe wie die durch das Zweifachlager 52 definierte Achse des Druckzylinders.FIG. 5 schematically shows an interior view of the side part 14 of the frame 10. A part of the window 24 and a section of the guide rail can be seen 30 on which the carriage 26 is guided. On the sled 26 it is Double bearing 52 mounted for the impression cylinder. The cylinder core 36 and the Printing cylinder sleeve 38 are shown in dash-dot lines. Furthermore, the ejection and retractor 32 shown. This device is on the same Height as the axis of the impression cylinder defined by the double bearing 52.

Der Antrieb des Schlittens 26 wird mit Hilfe einer elektronischen Steuereinheit 54, in die der Durchmesser des Druckzylinders eingegeben wird, so gesteuert, daß der Ausstoßer 42 die Druckzylinderhülse 38 beaufschlagt aber nicht die Stirnfläche des Zylinderkerns 36.The carriage 26 is driven by an electronic control unit 54, into which the diameter of the impression cylinder is entered, controlled that the ejector 42 acts on the pressure cylinder sleeve 38 but not the End face of the cylinder core 36.

Als Beispiel sind in Figur 5 der Zylinderkern 36' und die Druckzylinderhülse 38' eines Druckzylinders mit größerem Durchmesser strichpunktiert eingezeichnet. Die zugehörige Position des Schlittens 26 ist ebenfalls strichpunktiert angedeutet.5 shows the cylinder core 36 'and the pressure cylinder sleeve 38' as an example. of a printing cylinder with a larger diameter is shown in dash-dot lines. The associated position of the carriage 26 is also indicated by dash-dotted lines.

In einer modifizierten Ausführungsform könnte die Ausstoß- und Rückziehvorrichtung 32 auch am oberen oder unteren Scheitel des Druckzylinders angeordnet sein. In diesem Fall müßte sie jedoch auch in der Höhe verstellbar sein, um eine Anpassung an unterschiedliche Durchmesser des Druckzylinders zu ermöglichen.In a modified embodiment, the ejection and retraction device could 32 also arranged on the upper or lower vertex of the printing cylinder his. In this case, however, it should also be adjustable in height to allow adaptation to different diameters of the printing cylinder.

Claims (3)

Vorrichtung zum Wechseln einer Druckzylinderhülse (38) in einer Druckmaschine mit einem Gestell (10), das eine Antriebsseite und eine Bedienseite aufweist und in dem ein die Druckzylinderhülse aufnehmender Zylinderkern (36) derart gelagert ist, daß sich die Druckzylinderhülse axial zur Bedienseite hin abziehen läßt, gekennzeichnet durch einen auf der Antriebsseite des Gestells (10) angeordneten, auf die Stirnfläche der Druckzylinderhülse (38) wirkenden Ausstoßer (42) und/oder eine auf der Antriebsseite des Gestells (10) angeordnete Rückziehkralle (44), die lösbar in eine Vertiefung (48) am Rand der Druckzylinderhülse (38) eingreift.Device for changing a printing cylinder sleeve (38) in a printing press with a frame (10) which has a drive side and an operating side and in which a cylinder core (36) receiving the printing cylinder sleeve is mounted such that the printing cylinder sleeve can be pulled off axially towards the operating side , characterized by an ejector (42) arranged on the drive side of the frame (10) and acting on the end face of the pressure cylinder sleeve (38) and / or a retraction claw (44) arranged on the drive side of the frame (10) which detachably into a recess (48) engages on the edge of the impression cylinder sleeve (38). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Rückziehkralle (44) schwenkbar am Ausstoßer (42) montiert ist.Device according to claim 1, characterized in that the retraction claw (44) is pivotally mounted on the ejector (42). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Zylinderkern (36) in einem Schlitten (26) gelagert ist, der längs einer Führungsschiene (30) in bezug auf das Gestell (10) verschiebbar ist, daß der Ausstoßer (42) und/oder die Rückziehkralle (44) auf oder in der Nähe einer gedachten Linie angeordnet ist, die die Drehachse des Zylinderkerns (36) schneidet und parallel zu der Führungsschiene (30) verläuft, und daß die Position des Schlittens (26) längs der Führungsschiene (30) in Abhängigkeit vom Durchmesser der Druckzylinderhülse (38) steuerbar ist.Apparatus according to claim 1 or 2, characterized in that the cylinder core (36) is mounted in a carriage (26) which is displaceable along a guide rail (30) with respect to the frame (10), that the ejector (42) and / or the retraction claw (44) is arranged on or in the vicinity of an imaginary line that intersects the axis of rotation of the cylinder core (36) and runs parallel to the guide rail (30), and that the position of the slide (26) along the guide rail ( 30) can be controlled as a function of the diameter of the pressure cylinder sleeve (38).
EP19990119764 1999-10-06 1999-10-06 Device for changing a cylindrical printing sleeve Expired - Lifetime EP1090754B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59906531T DE59906531D1 (en) 1999-10-06 1999-10-06 Device for changing a pressure cylinder sleeve
ES99119764T ES2205666T3 (en) 1999-10-06 1999-10-06 DEVICE FOR CHANGING A PRINT CYLINDER HOSE.
EP19990119764 EP1090754B1 (en) 1999-10-06 1999-10-06 Device for changing a cylindrical printing sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19990119764 EP1090754B1 (en) 1999-10-06 1999-10-06 Device for changing a cylindrical printing sleeve

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EP1090754B1 EP1090754B1 (en) 2003-08-06

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220608C1 (en) * 2002-05-08 2003-11-06 Windmoeller & Hoelscher press
US6644188B2 (en) 2001-01-04 2003-11-11 Fischer & Krecke Gmbh & Co. Method of exchanging a printing cylinder sleeve and printing machine for carrying out the method
US6647880B2 (en) 2000-10-13 2003-11-18 Fischer & Krecke Gmbh & Co. Flexographic printing press with device for washing the back-pressure cylinder
EP1362697A1 (en) 2002-05-18 2003-11-19 Fischer & Krecke Gmbh & Co. Device for handling printing sleeves
DE102005039782A1 (en) * 2005-08-22 2007-03-01 Windmöller & Hölscher Kg System and method for making print length changes
DE102008040328A1 (en) * 2008-07-10 2010-01-28 Windmöller & Hölscher Kg Inking unit of a printing press
DE102011117440A1 (en) 2011-10-31 2013-05-02 Manroland Web Systems Gmbh Application device for printing cylinder sleeve for printing cylinder of rotary printing press, has cover, which is mounted on longitudinal end of printing cylinder sleeve in sealing manner
DE10261999B4 (en) * 2002-05-25 2015-01-29 Windmöller & Hölscher Kg Press with tread plate to reach the upper inking units

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037253B4 (en) 2004-07-31 2013-09-05 Windmöller & Hölscher Kg Sleevewechselsystem

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US5370047A (en) * 1993-12-01 1994-12-06 Paper Converting Machine Company Flexographic press adapted for short runs and method
DE4341246C1 (en) * 1993-12-03 1995-02-23 Roland Man Druckmasch Device for handling sleeves on cylinders
WO1996020835A1 (en) * 1994-12-27 1996-07-11 E.I. Du Pont De Nemours And Company Manifold for print cylinders for mounting expandable sleeves thereon
DE19500729A1 (en) * 1995-01-12 1996-07-18 Mohndruck Reinhard Mohn Ohg Printing plate or casing changing mechanism for printing cylinder
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DE2542748A1 (en) * 1974-09-26 1976-04-15 Buckley M A Engraving Ltd ANILINE PRESSURE ROLLER AND PROCEDURE FOR ITS ASSEMBLY
EP0053791A1 (en) * 1980-12-04 1982-06-16 Dai Nippon Insatsu Kabushiki Kaisha Sleeve-type gravure printing cylinder and method and apparatus for its assembly
US5370047A (en) * 1993-12-01 1994-12-06 Paper Converting Machine Company Flexographic press adapted for short runs and method
DE4341246C1 (en) * 1993-12-03 1995-02-23 Roland Man Druckmasch Device for handling sleeves on cylinders
WO1996020835A1 (en) * 1994-12-27 1996-07-11 E.I. Du Pont De Nemours And Company Manifold for print cylinders for mounting expandable sleeves thereon
DE19500729A1 (en) * 1995-01-12 1996-07-18 Mohndruck Reinhard Mohn Ohg Printing plate or casing changing mechanism for printing cylinder
EP0812681A1 (en) * 1996-06-12 1997-12-17 Fischer & Krecke Gmbh & Co. Printing machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6647880B2 (en) 2000-10-13 2003-11-18 Fischer & Krecke Gmbh & Co. Flexographic printing press with device for washing the back-pressure cylinder
US6644188B2 (en) 2001-01-04 2003-11-11 Fischer & Krecke Gmbh & Co. Method of exchanging a printing cylinder sleeve and printing machine for carrying out the method
DE10220608C1 (en) * 2002-05-08 2003-11-06 Windmoeller & Hoelscher press
WO2003095205A2 (en) * 2002-05-08 2003-11-20 Windmöller & Hölscher Kg Replacement of cartridgelike printing plates in a flexo printing machine
WO2003095205A3 (en) * 2002-05-08 2004-06-17 Windmoeller & Hoelscher Replacement of cartridgelike printing plates in a flexo printing machine
EP1362697A1 (en) 2002-05-18 2003-11-19 Fischer & Krecke Gmbh & Co. Device for handling printing sleeves
DE10261999B4 (en) * 2002-05-25 2015-01-29 Windmöller & Hölscher Kg Press with tread plate to reach the upper inking units
DE102005039782A1 (en) * 2005-08-22 2007-03-01 Windmöller & Hölscher Kg System and method for making print length changes
DE102008040328A1 (en) * 2008-07-10 2010-01-28 Windmöller & Hölscher Kg Inking unit of a printing press
DE102008040328B4 (en) * 2008-07-10 2011-02-24 Windmöller & Hölscher Kg Inking unit of a printing press and method for sliding a cylinder sleeve
DE102011117440A1 (en) 2011-10-31 2013-05-02 Manroland Web Systems Gmbh Application device for printing cylinder sleeve for printing cylinder of rotary printing press, has cover, which is mounted on longitudinal end of printing cylinder sleeve in sealing manner

Also Published As

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DE59906531D1 (en) 2003-09-11
ES2205666T3 (en) 2004-05-01
EP1090754B1 (en) 2003-08-06

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