EP1090754B1 - Device for changing a cylindrical printing sleeve - Google Patents

Device for changing a cylindrical printing sleeve Download PDF

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Publication number
EP1090754B1
EP1090754B1 EP19990119764 EP99119764A EP1090754B1 EP 1090754 B1 EP1090754 B1 EP 1090754B1 EP 19990119764 EP19990119764 EP 19990119764 EP 99119764 A EP99119764 A EP 99119764A EP 1090754 B1 EP1090754 B1 EP 1090754B1
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EP
European Patent Office
Prior art keywords
cylinder
sleeve
cylinder sleeve
ejector
printing
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.)
Expired - Lifetime
Application number
EP19990119764
Other languages
German (de)
French (fr)
Other versions
EP1090754A1 (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 EP19990119764 priority patent/EP1090754B1/en
Priority to ES99119764T priority patent/ES2205666T3/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 pressure cylinder sleeve in a printing press with a frame that has a drive side and an operator side and in which a pressure cylinder sleeve receiving cylinder core is mounted so that the pressure cylinder sleeve axially to the operating side pull off, and arranged with a on the drive side of the frame Ejector and / or arranged on the drive side of the frame Retracting claw, releasably in a recess at the edge of the pressure cylinder sleeve intervenes.
  • the clichés are on a printing cylinder sleeve or a so-called sleeve, which is detachable on a pressure cylinder core is deferred.
  • the change can of the sleeve in the machine frame, so that the pressure cylinder core in the frame can remain.
  • the sleeve only needs to be removed removed the bearing for the cylinder core located on the operating side become.
  • the cylinder core is then cantilevered by that on the opposite Page held camp held.
  • EP-A-0 053 791 describes a device for attaching a sleeve on a pressure cylinder core and for releasing the sleeve from the cylinder core, at an ejector acts on the end face of the sleeve.
  • the object of the invention is to provide a device which allows the replacement the printing cylinder sleeve further facilitated.
  • the bearings for the pressure cylinder core are mounted on slides that allow it. to turn on the impression cylinder to the impression cylinder.
  • the ejector and / or the remindziehkralle is in relation to the machine frame in a position arranged on or near one through the axis of the cylinder core going and parallel to the trajectory of the carriage running Straight line lies.
  • For the change of the printing cylinder sleeve can then be the cylinder core position it with the aid of the carriage so that the end face of the Pressure cylinder sleeve comes in a position opposite to the ejector.
  • Different diameters of the cylinder core and / or the pressure cylinder sleeve can then bill by appropriate positioning of the carriage be worn so that it is possible, the ejector or the remindziehkralle stationary to be arranged on the machine frame.
  • drive side in this application is the side of the printing press frame referred to, which is opposite to the operating side. Usually 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.
  • Figure 1 shows a view on the operating side of a flexographic printing machine, i. on the side from which operating operations such as replacing a printing cylinder sleeve can be made.
  • the printing press has a frame 10 which is formed by two side parts 12 and 14, In Figure 1, only the side part 12 can be seen. Between the side parts 12 and 14, a counter-pressure cylinder 16 is mounted, on the circumference of several inking units 18 are arranged.
  • Each inking unit 18 includes a printing cylinder 20 and an applicator roller 22.
  • a solid 24 recessed, through which the ends of the printing cylinder 20 and the applicator roll 22 are accessible.
  • the impression cylinder 20 and the applicator rollers 22 are single stored in carriages 26 and 28, which are independently longitudinal guide rails 30 are movable.
  • the guide rails 30 are each below the associated window 24 on the inside of the side part 12 and 14th appropriate.
  • On the operator side are the bearings for the impression cylinder 20 and the Mandatory rollers 22 designed as a folding bearing or removable bearings.
  • Figures 1 and 2a show the printing press in the state in which the printing cylinder 20 is employed at the periphery of the impression cylinder 16 and the Application roller 22 is employed at the periphery of the printing cylinder 20.
  • FIG 2b the printing cylinder 20 and the applicator roller 22 by means of the carriage 26th and 28 have been returned to their parked positions.
  • the diameter of the printing cylinder 20 varies according to the respective one Print job prescribed print length.
  • the drives for the slides 26 are based on the known diameter of the printing cylinder 20 so controlled, that the outer peripheral edge of the printing cylinder on the applicator roll 22 facing side always with the ejection and retraction device 32nd is aligned.
  • the bearing for the printing cylinder 20 on the operating side (on the side part 12) axially of the Axis of the printing cylinder has been deducted, so that it with the help of the carriage 26 can be moved to the side, as Figure 2c shows.
  • the printing cylinder is then due to the dual storage on the opposite side cantilever-like held on the side part 14.
  • the printing cylinder 20 has a cylinder core 36, on which a clichés carrying pressure cylinder sleeve 38th is deferred.
  • the pressure cylinder sleeve 38 is removed with the aid of the ejection and retractor 32 a piece moved on the Zylinderkem 36 been so that they are conveniently accessible on the operating page in the window 24 and then easily by hand or with the help of a robot can pull off completely from the cylinder core 36.
  • An actuating cylinder 40 is fixedly mounted on the console 34.
  • the free end of the Piston rod of this actuating cylinder 40 forms an ejector 42 for the printing cylinder sleeve 38.
  • a retracting claw 44 is hinged to the ejector 42 and pivotable by means of a smaller actuating cylinder 46. If the ejector 42 abuts against the end face of the pressure cylinder sleeve 38 and the actuating cylinder 46 is extended, the pull-back claw 44 engages with its hook-shaped cranked end in a hole 48, the near the edge in the pressure cylinder sleeve 38 is formed.
  • the impression cylinder 20 is arranged with respect to the ejector 42 that this only the pressure cylinder sleeve 38 but not the cylinder core 36 acted upon. If the printing cylinder sleeve 38 is to be removed from the cylinder core, so is first in a known manner, the interior of the cylinder core 36 with compressed air applied. The pressure acts through holes 50 in the cylinder core on the inside the pressure cylinder sleeve 38, so that it is slightly widened and can be moved easily on the cylinder core. Subsequently, with Help the actuating cylinder 40 of the ejector 42 extended so that he the pressure cylinder sleeve a piece far away from the cylinder core 36, as shown in Figure 4 is. However, the remindziehkralle 44 remains in the dissolved state, so that The cylinder sleeve can be further pulled off by hand.
  • FIG. 5 schematically shows an interior view of the side part 14 of the frame 10. It recognizes a part of the window 24 and a portion of the guide rail 30, on which the carriage 26 is guided.
  • the Double bearing 52 mounted for the printing cylinder.
  • the cylinder core 36 and the Pressure cylinder sleeve 38 are shown in phantom.
  • the ejection and retractor 32 is on the same Height as the axis defined by the double bearing 52 axis of the printing cylinder.
  • the drive of the carriage 26 is by means of an electronic control unit 54, in which the diameter of the impression cylinder is entered, so controlled that the ejector 42, the pressure cylinder sleeve 38 is applied but not the End face of the cylinder core 36.
  • the ejector and retractor could 32 also arranged at the top or bottom vertex of the printing cylinder his. In this case, however, it would have to be adjustable in height to to allow adaptation to different diameters of the printing cylinder.

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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, und mit einem auf der Antriebsseite des Gestells angeordneten Ausstoßer und/oder einer auf der Antriebsseite des Gestells angeordneten Rückziehkralle, die lösbar in eine Vertiefung am Rand der Druckzylinderhülse eingreift.The invention relates to a device for changing a pressure cylinder sleeve in a printing press with a frame that has a drive side and an operator side and in which a pressure cylinder sleeve receiving cylinder core is mounted so that the pressure cylinder sleeve axially to the operating side pull off, and arranged with a on the drive side of the frame Ejector and / or arranged on the drive side of the frame Retracting claw, releasably in a recess at the edge of the pressure cylinder sleeve intervenes.

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 presses, the clichés are on a printing cylinder sleeve or a so-called sleeve, which is detachable on a pressure cylinder core is deferred. When changing the press, the change can of the sleeve in the machine frame, so that the pressure cylinder core in the frame can remain. The sleeve only needs to be removed removed the bearing for the cylinder core located on the operating side become. The cylinder core is then cantilevered by that on the opposite Page held camp 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.Often, however, the end of the impression cylinder located on the operator side is only poorly accessible, so it's difficult to put a new sleeve all over the cylinder core defer and / or the sleeve to be removed by hand or with the help of a robot at the end to pick it up from the cylinder core.

Aus DE-C-43 41 246 ist eine Druckmaschine der eingangs genannten Art bekannt, bei der ein Ausstoßer das Abziehen des Sleeves vom Zylinderkern erleichtert. EP-A-0 053 791 beschreibt eine Vorrichtung zum Befestigen eines Sleeves auf einem Druckzylinderkern und zum Lösen des Sleeves vom Zylinderkern, bei der ein Ausstoßer auf die Stirnfläche des Sleeves wirkt.From DE-C-43 41 246 a printing machine of the type mentioned is known in which an ejector facilitates the removal of the sleeve from the cylinder core. EP-A-0 053 791 describes a device for attaching a sleeve on a pressure cylinder core and for releasing the sleeve from the cylinder core, at an ejector acts on the end face of the sleeve.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die das Auswechseln der Druckzylinderhülse weiter erleichtert.The object of the invention is to provide a device which allows the replacement the printing cylinder sleeve further facilitated.

Diese Aufgabe wird erfindungsgemäß mit den in Patentanspruch 1 angegebenen Merkmalen gelöst. This object is achieved with the specified in claim 1 Characteristics solved.

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.With the help of the ejector, by an actuator, such as a Pneumatic cylinder, driven, is sitting on the cylinder core Pressure cylinder sleeve moved a bit towards the operating side, so that she can be more comfortable there and completely withdrawn. Postponing a new pressure cylinder sleeve on the cylinder core is characterized by the same facilitated by an actuator driven Rückziehkralle. The Pressure cylinder sleeve then does not need to be completely on the operating side Cylinder core to be postponed, but only so far that the opposite End can be detected by the Rückziehkralle. With the help of the pullback claw The pressure cylinder sleeve is then in its final axial position pulled on the cylinder core.

Die Lager für den Druckzylinderkern sind auf Schlitten montiert, die es gestatten. den Druckzylinder an den Gegendruckzylinder anzustellen. Der Ausstoßer und/oder die Rückziehkralle ist in bezug auf das Maschinengestell in einer Position angeordnet, die auf oder in der Nähe einer durch die Achse des Zylinderkerns 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 gegenüberliegende 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 mounted on slides that allow it. to turn on the impression cylinder to the impression cylinder. The ejector and / or the Rückziehkralle is in relation to the machine frame in a position arranged on or near one through the axis of the cylinder core going and parallel to the trajectory of the carriage running Straight line lies. For the change of the printing cylinder sleeve can then be the cylinder core position it with the aid of the carriage so that the end face of the Pressure cylinder sleeve comes in a position opposite to the ejector. Different diameters of the cylinder core and / or the pressure cylinder sleeve can then bill by appropriate positioning of the carriage be worn so that it is possible, the ejector or the Rückziehkralle stationary to be arranged on the machine frame.

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.The term "drive side" in this application is the side of the printing press frame referred to, which is opposite to the operating side. Mostly 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.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. In the following 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 machine;
Fig. 2a to 2c
Sections along the line II-II in Figure 2 for different states of the printing machine during a change of the printing cylinder sleeve;
3 and 4
different states of a pusher and a Rückziehclalle in plan view; and
Fig. 5
the ejector and the Rückziehclalle in an end 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 on the operating side of a flexographic printing machine, i. on the side from which operating operations such as replacing a printing cylinder sleeve can be made. The printing press has a frame 10 which is formed by two side parts 12 and 14, In Figure 1, only the side part 12 can be seen. Between the side parts 12 and 14, a counter-pressure cylinder 16 is mounted, on the circumference of several inking units 18 are arranged. Each inking unit 18 includes a printing cylinder 20 and an applicator roller 22. In the side part 12 is for each inking unit 18 a solid 24 recessed, through which the ends of the printing cylinder 20 and the applicator roll 22 are accessible. The impression cylinder 20 and the applicator rollers 22 are single stored in carriages 26 and 28, which are independently longitudinal guide rails 30 are movable. The guide rails 30 are each below the associated window 24 on the inside of the side part 12 and 14th appropriate. On the operator side are the bearings for the impression cylinder 20 and the Mandatory rollers 22 designed as a folding bearing 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 Figure 2a, the impression cylinder 20 and the applicator roll 22 on the operating side opposite drive side in each case twice in the associated carriage 26 and 28 stored. In addition one recognizes in figure 2a an ejection and retraction device 32, by means of a console 34th 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 at the periphery of the impression cylinder 16 and the Application roller 22 is employed at the periphery of the printing cylinder 20. In FIG 2b, the printing cylinder 20 and the applicator roller 22 by means of the carriage 26th 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 printing cylinder 20 varies according to the respective one Print job prescribed print length. The drives for the slides 26 are based on the known diameter of the printing cylinder 20 so controlled, that the outer peripheral edge of the printing cylinder on the applicator roll 22 facing side always with the ejection and retraction device 32nd is aligned. Furthermore, in the state shown in Figure 2b, the bearing for the printing cylinder 20 on the operating side (on the side part 12) axially of the Axis of the printing cylinder has been deducted, so that it with the help of the carriage 26 can be moved to the side, as Figure 2c shows. The printing cylinder is then due to the dual storage on the opposite side cantilever-like held on the side part 14.

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 Zylinderkem 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 further be seen in FIG. 2c, the printing cylinder 20 has a cylinder core 36, on which a clichés carrying pressure cylinder sleeve 38th is deferred. In FIG. 2c, the pressure cylinder sleeve 38 is removed with the aid of the ejection and retractor 32 a piece moved on the Zylinderkem 36 been so that they are conveniently accessible on the operating page in the window 24 and then easily by hand or with the help of a robot can pull off completely 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 ejection and retraction device 32 will be explained in more detail 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 Piston rod of this actuating cylinder 40 forms an ejector 42 for the printing cylinder sleeve 38. A retracting claw 44 is hinged to the ejector 42 and pivotable by means of a smaller actuating cylinder 46. If the ejector 42 abuts against the end face of the pressure cylinder sleeve 38 and the actuating cylinder 46 is extended, the pull-back claw 44 engages with its hook-shaped cranked end in a hole 48, the near the edge in the pressure 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 Zylinderkems 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 impression cylinder 20 is arranged with respect to the ejector 42 that this only the pressure cylinder sleeve 38 but not the cylinder core 36 acted upon. If the printing cylinder sleeve 38 is to be removed from the cylinder core, so is first in a known manner, the interior of the cylinder core 36 with compressed air applied. The pressure acts through holes 50 in the cylinder core on the inside the pressure cylinder sleeve 38, so that it is slightly widened and can be moved easily on the cylinder core. Subsequently, with Help the actuating cylinder 40 of the ejector 42 extended so that he the pressure cylinder sleeve a piece far away from the cylinder core 36, as shown in Figure 4 is. However, the Rückziehkralle 44 remains in the dissolved state, so that The cylinder sleeve can be further pulled off 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, it is first of Hand pushed onto the cylinder core 36 until it with its front side on Pusher 42 strikes, which is located in the position shown in Figure 4. Subsequently, the actuating cylinder 46 is actuated, so that the Rückziehkralle 44 in the hole 48 engages. If necessary, this process can also be triggered automatically be that the stop of the printing cylinder sleeve on the ejector 42 with Help is scanned by a switch. When the pullback claw 44 the pressure cylinder sleeve Detected 38, the piston rod of the adjusting cylinder 40 is retracted, so that the pressure cylinder sleeve reaches the axial position shown in Figure 3. Subsequently, the Rückziehkralle 44 is released again, and the ejector 42 can be further withdrawn, so that the operations 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. It recognizes a part of the window 24 and a portion of the guide rail 30, on which the carriage 26 is guided. On the carriage 26 is the Double bearing 52 mounted for the printing cylinder. The cylinder core 36 and the Pressure cylinder sleeve 38 are shown in phantom. Furthermore, the ejection and retractor 32. This device is on the same Height as the axis defined by the double bearing 52 axis of the printing cylinder.

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 drive of the carriage 26 is by means of an electronic control unit 54, in which the diameter of the impression cylinder is entered, so controlled that the ejector 42, the pressure cylinder sleeve 38 is applied 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.As an example, in Figure 5, the cylinder core 36 'and the pressure cylinder sleeve 38' drawn a dashed line of a printing cylinder with a larger diameter. 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 ejector and retractor could 32 also arranged at the top or bottom vertex of the printing cylinder his. In this case, however, it would have to be adjustable in height to to allow adaptation to different diameters of the printing cylinder.

Claims (2)

  1. Apparatus for changing an impression cylinder sleeve (38) in a printing machine having a frame (10) which has a drive side and an operating side and in which a cylinder core (36), which receives the impression cylinder sleeve, is supported in such a manner that the impression cylinder sleeve can be drawn off axially towards the operating side, and having an ejector (42), which is arranged at the drive side of the frame (10), and/or a retraction claw (44), which is arranged at the drive side of the frame (10) and which engages releasably in a recess (48) at the edge of the impression cylinder sleeve (38), characterised in that the cylinder core (36) is supported in a carriage (26) which can be displaced along a guide rail (30) relative to the frame (10), in that the ejector (42), which acts on the end face of the impression cylinder sleeve (38), and/or the retraction claw (44) is/are arranged on or near a notional line which intersects with the axis of rotation of the cylinder core (36) and which extends parallel with the guide rail (30), and in that the position of the carriage (26) along the guide rail (30) can be controlled dependent on the diameter of the impression cylinder sleeve (38).
  2. Apparatus according to claim 1, characterised in that the retraction claw (44) is mounted pivotably on the ejector (42).
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
EP19990119764 EP1090754B1 (en) 1999-10-06 1999-10-06 Device for changing a cylindrical printing sleeve
ES99119764T ES2205666T3 (en) 1999-10-06 1999-10-06 DEVICE FOR CHANGING A PRINT CYLINDER HOSE.

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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EP1090754A1 EP1090754A1 (en) 2001-04-11
EP1090754B1 true EP1090754B1 (en) 2003-08-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7225736B2 (en) 2002-05-08 2007-06-05 Windmoeller & Hoelscher Kg Printing machine
US9156244B2 (en) 2008-07-10 2015-10-13 Windmoeller & Hoelscher Kg Inking unit of a printing machine
US10737482B2 (en) 2004-07-31 2020-08-11 Windmoeller & Hoelscher Kg Sleeve exchange system

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Publication number Priority date Publication date Assignee Title
EP1197333B1 (en) 2000-10-13 2006-03-01 Fischer & Krecke GmbH & Co. Flexographic printing press with a washing device for the impression cylinder
ES2258989T5 (en) 2001-01-04 2011-01-17 FISCHER & KRECKE GMBH & CO. PROCEDURE FOR CHANGING A PRINT CYLINDER CAP AND PRINTING MACHINE FOR THE PERFORMANCE OF THIS PROCEDURE.
DE50202714D1 (en) 2002-05-18 2005-05-12 Fischer & Krecke Gmbh & Co Kg Device for handling printing cylinder sleeves
DE10223414B4 (en) * 2002-05-25 2013-04-25 Windmöller & Hölscher Kg Change station for sleeves of printing presses
DE102005039782A1 (en) * 2005-08-22 2007-03-01 Windmöller & Hölscher Kg System and method for making print length changes
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

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JPS5163708A (en) * 1974-09-26 1976-06-02 Emu Ei Batsukuree Engureibingu
EP0053791B1 (en) * 1980-12-04 1984-12-19 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
AU4689496A (en) * 1994-12-27 1996-07-24 E.I. Du Pont De Nemours And Company Manifold for print cylinders for mounting expandable sleeves thereon
DE19500729C2 (en) * 1995-01-12 2003-02-20 Mohndruck Graphische Betr E Gm Sleeve changing device for a printing unit
EP0812681A1 (en) * 1996-06-12 1997-12-17 Fischer & Krecke Gmbh & Co. Printing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7225736B2 (en) 2002-05-08 2007-06-05 Windmoeller & Hoelscher Kg Printing machine
US10737482B2 (en) 2004-07-31 2020-08-11 Windmoeller & Hoelscher Kg Sleeve exchange system
US9156244B2 (en) 2008-07-10 2015-10-13 Windmoeller & Hoelscher Kg Inking unit of a printing machine
US10166757B2 (en) 2008-07-10 2019-01-01 Windmoeller & Hoelscher Kg Inking unit of a printing machine

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ES2205666T3 (en) 2004-05-01
DE59906531D1 (en) 2003-09-11
EP1090754A1 (en) 2001-04-11

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