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EP1628828B1 - Mandrel locking unit for printing roller mandrels in a rotary printing machine - Google Patents

Mandrel locking unit for printing roller mandrels in a rotary printing machine Download PDF

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Publication number
EP1628828B1
EP1628828B1 EP04733566A EP04733566A EP1628828B1 EP 1628828 B1 EP1628828 B1 EP 1628828B1 EP 04733566 A EP04733566 A EP 04733566A EP 04733566 A EP04733566 A EP 04733566A EP 1628828 B1 EP1628828 B1 EP 1628828B1
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EP
European Patent Office
Prior art keywords
mandrel
locking unit
piston
mounting element
medium cylinder
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
EP04733566A
Other languages
German (de)
French (fr)
Other versions
EP1628828A2 (en
Inventor
Georg Rasch
Hans-Jörg MIESELER
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1628828A2 publication Critical patent/EP1628828A2/en
Application granted granted Critical
Publication of EP1628828B1 publication Critical patent/EP1628828B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • 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 mandrel locking unit according to the preamble of claim 1.
  • the prior art therefore includes pressure rollers, which include Druckwalzenendorne, of which pressure roller sleeves - the so-called sleeves - can be deducted and postponed.
  • the pressure rolling mandrels are usually mounted on one end overhung. The free end is included in the printing operation of a bearing that can be removed for the purpose of Sleeve Touchs.
  • all rollers involved in a printing process are to be understood as pressure rollers.
  • the patent DE 197 05 369 A1 shows, for example, such a printing press.
  • Each roller involved in the printing process is associated with a bearing block, which is movable relative to this after releasing the bearing connection to the roller.
  • the actual warehouse is located in a warehouse head. This is movable in parallel to the axis of the roller guides.
  • the method is carried out by a piston-cylinder unit.
  • the unit, consisting of the bearing, the mandrel receiving element, the guides and the piston-cylinder unit, is often referred to as a mandrel locking unit.
  • the mandrel locking unit has a construction-related depth, which is composed at least from the depth of the bearing piston and the maximum stroke of the piston-cylinder unit.
  • This construction depth causes on the operating side of the printing press a space consumption, which has a restrictive effect on the ease of use of the printing press.
  • the US 3,147,702 has a similar mandrel locking unit, but in which not the bearing from the roll, but the roll neck is withdrawn from the roll.
  • the shaft journal is thus part of the mandrel locking unit.
  • the shaft journal is surrounded in this arrangement by the piston designed as a cavity.
  • the piston designed as a cavity.
  • the object of the invention is therefore to propose a Dornverriegelungshow, which has a more compact design with a smaller overall depth.
  • the interface - as stated in the preamble of the main claim - the part of the surface of the piston, which limits the pressure chamber of the pressure medium cylinder.
  • the mandrel receiving member is a suitable for receiving the mandrel on the mandrel support surface component. Since the mandrel is supported on its support surface by means of bearings, this component usually encloses this or these bearings. As a rule, the mandrel receiving element is designed as a sleeve. To displace the mandrel receiving member, it is connected to the piston at a junction.
  • the distance between the interface and the junction is less than three quarters of the maximum stroke of the piston in the cylinder.
  • the distance between the interface and the junction is less than half the maximum stroke of the piston in the cylinder.
  • Such a design offers a good compromise between a compact design and a secure guidance of the mandrel receiving element in the guide sleeve, for example, to prevent tilting.
  • the distance can be significantly smaller.
  • the inner diameter of the pressure medium cylinder is greater than the outer diameter of the mandrel receiving element.
  • the piston is a disk without a piston rod. Since then the mandrel receiving element assumes the leadership function of the piston rod, this must have a greater length than the maximum stroke of the piston.
  • both the mandrel receiving element and the pressure medium cylinder are circular cylindrical designed.
  • the axes of symmetry of these two circular cylindrical components are parallel to each other, but not aligned. This results in a slight acentric connection between these two components, which offers the advantage that the mandrel receiving element can be arranged on one side of the guide bush. If two pressure rollers with a small outer diameter cooperate in one printing press, the minimum outer diameter is given by the dimensions of the mandrel locking unit. If the mandrel receiving element is arranged offset, then the minimum distance can be reduced again, so that it is possible to reduce the minimum printing length of the printing press.
  • the present invention advantageously finds use in flexographic or gravure printing machines, but can also be used in printing machines operating on other principles.
  • the Figures 1 and 2 show a mandrel locking unit 1, which consists essentially of a pressure cylinder 2.
  • the pressure medium cylinder 2 has a pressure chamber 3, in which a piston 4 is displaceable.
  • the piston 4 has on its outer periphery a sealing ring 5, which is known to prevent compressed air from passing from one side to the other side of the piston 4.
  • the compressed air is introduced through the compressed air supply lines 6, 7 in the pressure chamber 3.
  • the pressure medium cylinder 2 has a guide region 8 away from the pressure chamber 3, in which the mandrel receiving element 9 is slidably mounted.
  • the pressure chamber 3 and the guide region 8 are separated from each other by the mandrel receiving element 9 and the seal 10.
  • the mandrel receiving element 9 carries a bearing 11, for example a rolling bearing, which is capable of enclosing the mandrel supporting surface 12 of the pressure rolling mandrel 13.
  • a bearing 11 for example a rolling bearing, which is capable of enclosing the mandrel supporting surface 12 of the pressure rolling mandrel 13.
  • the pressure chamber is acted upon by the compressed air supply 7 with compressed air, so that the piston 4 and with him the mandrel receiving member 9 away from the pressure roller mandrel 13 into its in the Fig. 2 , moved shown end position.
  • the platen 13 and the mandrel locking unit 1 can be moved relative to each other.
  • the mandrel locking unit 1 is moved in the direction of the arrow x.
  • the pressure medium cylinder 2 at at least one point on an opening 14.
  • the Fig. 3 shows the slightly staggered arrangement of the piston 4 and the mandrel receiving member 9 to minimize the distance between the mandrel receiving member 9 and the outer edge of the pressure medium cylinder 2 on the side of the aperture 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rotary Presses (AREA)
  • Rotary Pumps (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Rod-locking unit (1) for a rotary printing machine comprises a rod-receiving element (9) forming a hollow body and surrounding a bearing (11) receiving a printing roller rod (13) with a rod bearing surface (12). The locking unit is displaced between a receiving position in which the printing roller rod engages with the bearing and a release position in which the printing roller rod disengages from the bearing. The locking unit also comprises a cylinder (2) containing a pressure chamber (3) and a piston (4) for displacing the receiving element between the receiving and release positions. The piston defines the pressure chamber at a boundary and at a connecting point with the receiving element to transfer the displacement force required. The distance between the boundary and the connecting point is shorter than the maximum stroke of the piston in the cylinder. The cylinder has an opening (14) that is open in the release position so that the printing roller rod and the locking unit are separated by displacement relative to each other.

Description

Die Erfindung betrifft eine Dornverriegelungseinheit nach dem Oberbegriff des Anspruchs 1.The invention relates to a mandrel locking unit according to the preamble of claim 1.

Zur Abwicklung von verschiedenen Druckaufträgen ist es häufig notwendig, die Druckformen zu wechseln. Zum Stand der Technik gehören daher Druckwalzen, welche Druckwalzendorne umfassen, von denen Druckwalzenhülsen - die so genannten Sleeves - abgezogen und wieder aufgeschoben werden können. Um die Sleeves wechseln zu können, ohne die Druckwalze aus der Druckmaschinen entfernen zu müssen, sind die Druckwalzendorne gewöhnlich einendig fliegend gelagert. Das freie Ende wird im Druckbetrieb von einem Lager umfasst, das zum Zwecke des Sleevewechsels entfernt werden kann. Im Rahmen der vorliegenden Erfindung sind alle an einem Druckprozess beteiligten Walzen als Druckwalzen zu verstehen.To process different print jobs, it is often necessary to change the printing forms. The prior art therefore includes pressure rollers, which include Druckwalzenendorne, of which pressure roller sleeves - the so-called sleeves - can be deducted and postponed. To be able to change the sleeves without having to remove the pressure roller from the printing presses, the pressure rolling mandrels are usually mounted on one end overhung. The free end is included in the printing operation of a bearing that can be removed for the purpose of Sleevewechsels. In the context of the present invention, all rollers involved in a printing process are to be understood as pressure rollers.

Die Patentschrift DE 197 05 369 A1 zeigt beispielsweise eine derartige Druckmaschine. Jeder am Druckprozess beteiligten Walze ist ein Lagerbock zugeordnet, der nach dem Lösen der Lagerverbindung zur Walze relativ zu dieser verfahrbar ist. Das eigentliche Lager befindet sich in einem Lagerkopf. Dieser ist in zur Achse der Walze parallelen Führungen verfahrbar. Das Verfahren erfolgt durch eine Kolbenzylindereinheit. Die Einheit, bestehend aus dem Lager, dem Dornaufnahmeelement, den Führungen und der Kolbenzylindereinheit, wird häufig auch als Dornverriegelungseinheit bezeichnet.The patent DE 197 05 369 A1 shows, for example, such a printing press. Each roller involved in the printing process is associated with a bearing block, which is movable relative to this after releasing the bearing connection to the roller. The actual warehouse is located in a warehouse head. This is movable in parallel to the axis of the roller guides. The method is carried out by a piston-cylinder unit. The unit, consisting of the bearing, the mandrel receiving element, the guides and the piston-cylinder unit, is often referred to as a mandrel locking unit.

Nachteilig bei dieser Konstruktion ist allerdings, dass die Dornverriegelungseinheit eine aufbaubedingte Bautiefe aufweist, welche sich mindestens aus der Tiefe des Lagerkolbens und dem maximalen Hub der Kolbenzylindereinheit zusammensetzt. Diese Bautiefe verursacht an der Bedienungsseite der Druckmaschine einen Platzverbrauch, der sich einschränkend auf die komfortable Bedienbarkeit der Druckmaschine auswirkt.A disadvantage of this construction, however, is that the mandrel locking unit has a construction-related depth, which is composed at least from the depth of the bearing piston and the maximum stroke of the piston-cylinder unit. This construction depth causes on the operating side of the printing press a space consumption, which has a restrictive effect on the ease of use of the printing press.

Die US 3,147,702 weist eine ähnliche Dornverriegelungseinheit auf, bei der jedoch nicht das Lager von der Walze, sondern der Walzenzapfen von der Walze abgezogen wird. Der Wellenzapfen ist also Bestandteil der Dornverriegelungseinheit. Der Wellenzapfen ist bei dieser Anordnung von dem als Hohlraum ausgebildeten Kolben umgeben. Jedoch ist auch bei dieser Dornverriegelungseinheit die sehr große Bautiefe nachteilig.The US 3,147,702 has a similar mandrel locking unit, but in which not the bearing from the roll, but the roll neck is withdrawn from the roll. The shaft journal is thus part of the mandrel locking unit. The shaft journal is surrounded in this arrangement by the piston designed as a cavity. However, even with this Dornverriegelungseinheit the very large depth is disadvantageous.

Aufgabe der Erfindung ist es daher, eine Dornverriegelungseinheit vorzuschlagen, die eine kompaktere Bauform mit einer geringeren Bautiefe aufweist.The object of the invention is therefore to propose a Dornverriegelungseinheit, which has a more compact design with a smaller overall depth.

Die Aufgabe wird gelöst durch eine Dornverriegelungseinheit mit den Merkmalen nach Anspruch 1.The object is achieved by a mandrel locking unit having the features of claim 1.

Hierbei ist die Grenzfläche - wie im Oberbegriff des Hauptanspruchs ausgeführt - der Teil der Oberfläche des Kolbens, welcher den Druckraum des Druckmittelzylinders begrenzt.Here, the interface - as stated in the preamble of the main claim - the part of the surface of the piston, which limits the pressure chamber of the pressure medium cylinder.

Das Dornaufnahmeelement ist ein zur Aufnahme des Dornes an der Dornauflagefläche geeignetes Bauteil. Da der Dorn an seiner Auflagefläche mit Hilfe von Lagern gehaltert wird, umschließt dieses Bauteil in der Regel auch dieses oder diese Lager. In der Regel ist das Dornaufnahmeelement als Hülse ausgeführt. Um das Dornaufnahmeelement zu verschieben, ist es mit dem Kolben an einer Verbindungsstelle verbunden.The mandrel receiving member is a suitable for receiving the mandrel on the mandrel support surface component. Since the mandrel is supported on its support surface by means of bearings, this component usually encloses this or these bearings. As a rule, the mandrel receiving element is designed as a sleeve. To displace the mandrel receiving member, it is connected to the piston at a junction.

In einer vorteilhaften Ausführung der Erfindung ist der Abstand zwischen der Grenzfläche und der Verbindungsstelle kleiner als drei Viertel des maximalen Hubs des Kolbens in dem Zylinder.In an advantageous embodiment of the invention, the distance between the interface and the junction is less than three quarters of the maximum stroke of the piston in the cylinder.

In einer besonders bevorzugten Ausführungsform ist der Abstand zwischen der Grenzfläche und der Verbindungsstelle kleiner als die Hälfte des maximalen Hubs des Kolbens in dem Zylinder. Eine solche Ausführung bietet einen guten Kompromiss zwischen einer kompakten Bauweise und einer sicheren Führung des Dornaufnahmeelements in der Führungshülse, beispielsweise um ein Verkanten zu verhindern. Selbstverständlich kann der Abstand noch bedeutend kleiner sein.In a particularly preferred embodiment, the distance between the interface and the junction is less than half the maximum stroke of the piston in the cylinder. Such a design offers a good compromise between a compact design and a secure guidance of the mandrel receiving element in the guide sleeve, for example, to prevent tilting. Of course, the distance can be significantly smaller.

Vorteilhaft bei der Ausführung der vorliegenden Erfindung ist auch, wenn es die Konstruktion ermöglicht, dass der Verfahrbereich des Dornaufnahmeelements und der Druckraum, in dem sich der Kolben bewegen kann, in axialer Richtung in einander übergehen. Unter anderem auf diese Weise kann auf die Kolbenstange, die bei bekannten Dornverriegelungseinheiten mindestens so lang ist wie der maximale Hub des Kolbens, sogar ganz verzichtet werden.It is also advantageous in the embodiment of the present invention, if it allows the construction, that the travel range of the mandrel receiving member and the pressure chamber in which the piston can move in the axial direction into each other. Among other things, in this way can be completely dispensed with the piston rod, which is at least as long as the maximum stroke of the piston in known mandrel locking units.

Wenn der Druckraum und der Verfahrbereich in einander übergehen ist es vorteilhaft, wenn der Innendurchmesser des Druckmittelzylinders größer ist als der Außendurchmesser des Dornaufnahmeelements.When the pressure space and the travel range merge into one another, it is advantageous if the inner diameter of the pressure medium cylinder is greater than the outer diameter of the mandrel receiving element.

Auf diese Weise ist eine direkte Kraftübertragung von dem Kolben auf das Dornaufnahmeelement gewährleistet.In this way, a direct power transmission is ensured by the piston on the mandrel receiving element.

Besonders vorteilhaft ist es, wenn der Kolben eine Scheibe ohne Kolbenstange ist. Da dann das Dornaufnahmeelement die Führungsfunktion der Kolbenstange übernimmt, muss dieses eine größere Baulänge als der maximale Hub des Kolbens besitzen.It is particularly advantageous if the piston is a disk without a piston rod. Since then the mandrel receiving element assumes the leadership function of the piston rod, this must have a greater length than the maximum stroke of the piston.

Um eine sichere Verbindung zwischen dem Kolben und dem Dornaufnahmeelement zu gewährleisten, ist es von Vorteil, eine Schraubverbindung zwischen diesen beiden Elementen vorzusehen.In order to ensure a secure connection between the piston and the mandrel receiving element, it is advantageous to provide a screw connection between these two elements.

In einer vorteilhaften Ausgestaltung der Erfindung sind sowohl das Dornaufnahmeelement als auch der Druckmittelzylinder kreiszylinderförmig ausgestaltet. Die Symmetrieachsen dieser beiden kreiszylinderförmigen Bauteile verlaufen parallel zueinander, fluchten aber nicht. Es ergibt sich also eine leichte azentrische Verbindung zwischen diesen beiden Bauteilen, was den Vorteil bietet, dass das Dornaufnahmeelement auf einer Seite der Führungsbuchse angeordnet sein kann. Wirken in einer Druckmaschine zwei Druckwalzen mit einem geringen Außendurchmesser zusammen, so ist der minimale Außendurchmesser durch die Dimensionen der Dornverriegelungseinheit gegeben. Wird das Dornaufnahmeelement versetzt angeordnet, so kann der minimale Abstand nochmals verringert werden, so dass es damit möglich ist, die minimale Drucklänge der Druckmaschine zu reduzieren.In an advantageous embodiment of the invention, both the mandrel receiving element and the pressure medium cylinder are circular cylindrical designed. The axes of symmetry of these two circular cylindrical components are parallel to each other, but not aligned. This results in a slight acentric connection between these two components, which offers the advantage that the mandrel receiving element can be arranged on one side of the guide bush. If two pressure rollers with a small outer diameter cooperate in one printing press, the minimum outer diameter is given by the dimensions of the mandrel locking unit. If the mandrel receiving element is arranged offset, then the minimum distance can be reduced again, so that it is possible to reduce the minimum printing length of the printing press.

Die vorliegende Erfindung findet vorteilhafterweise Verwendung in Flexo- oder Tiefdruckmaschinen, ist aber auch in Druckmaschinen, die nach anderen Prinzipien arbeiten, einsetzbar.The present invention advantageously finds use in flexographic or gravure printing machines, but can also be used in printing machines operating on other principles.

Ein Ausführungsbeispiel der Erfindung geht aus der nachfolgenden Beschreibung und der Zeichnung hervor.An embodiment of the invention will become apparent from the following description and the drawings.

Die einzelnen Figuren zeigen:

Fig. 1
eine erfindungsgemäße Dornverriegelungseinheit mit umschlos- sener Dornauflagefläche,
Fig. 2
eine erfindungsgemäße Dornverriegelungseinheit mit freigegebener Dornauflagefläche,
Fig. 3
Ansicht III - III der Dornverriegelungseinheit gemäß Fig. 1.
The individual figures show:
Fig. 1
a mandrel locking unit according to the invention with enclosed mandrel support surface,
Fig. 2
an inventive mandrel locking unit with released mandrel bearing surface,
Fig. 3
View III - III of the mandrel locking unit according to Fig. 1 ,

Die Figuren 1 und 2 zeigen eine Dornverriegelungseinheit 1, die im wesentlichen aus einem Druckmittelzylinder 2 besteht. Der Druckmittelzylinder 2 weist einen Druckraum 3 auf, in dem ein Kolben 4 verschiebbar ist. Der Kolben 4 weist an seinem Außenumfang einen Dichtungsring 5 auf, welcher bekanntermaßen verhindert, dass Druckluft von der einen Seite auf die andere Seite des Kolbens 4 gelangt. Die Druckluft wird durch die Druckluftzuführungen 6, 7 in den Druckraum 3 eingeleitet. Der Druckmittelzylinder 2 weist abseits des Druckraums 3 einen Führungsbereich 8 auf, in dem das Dornaufnahmeelement 9 verschieblich gelagert ist. Der Druckraum 3 und der Führungsbereich 8 sind durch das Dornaufnahmeelement 9 und die Dichtung 10 voneinander getrennt. In einem Abschnitt mit erweitertem Innendurchmesser trägt das Dornaufnahmeelement 9 ein Lager 11, beispielsweise ein Wälzlager, das die Dornauflagefläche 12 des Druckwalzendorns 13 zu umschließen vermag. Um die durch die Zuführung von Druckluft auf den Kolben 4 wirkende Kraft auf das Dornaufnahmeelement 9 zu übertragen, sind beide Bauteile auf nicht näher dargestellte Weise miteinander verbunden. Diese Verbindung wird vorteilhafterweise mit einer Schraube hergestellt.The Figures 1 and 2 show a mandrel locking unit 1, which consists essentially of a pressure cylinder 2. The pressure medium cylinder 2 has a pressure chamber 3, in which a piston 4 is displaceable. The piston 4 has on its outer periphery a sealing ring 5, which is known to prevent compressed air from passing from one side to the other side of the piston 4. The compressed air is introduced through the compressed air supply lines 6, 7 in the pressure chamber 3. The pressure medium cylinder 2 has a guide region 8 away from the pressure chamber 3, in which the mandrel receiving element 9 is slidably mounted. The pressure chamber 3 and the guide region 8 are separated from each other by the mandrel receiving element 9 and the seal 10. In a section with an expanded inner diameter, the mandrel receiving element 9 carries a bearing 11, for example a rolling bearing, which is capable of enclosing the mandrel supporting surface 12 of the pressure rolling mandrel 13. In order to transmit the force acting on the piston 4 by the supply of compressed air to the mandrel receiving element 9, both components are connected to each other in a manner not shown. This connection is advantageously made with a screw.

Im in Fig. 1. dargestellten Betriebszustand wird der Druckraum über die Druckluftzuführung 6 mit Druckluft beaufschlagt, so dass sich der Kolben 4 in axialer Richtung auf den Druckwalzendorn 13 zu bewegt. Eine axiale Führung des Kolbens 4 ist durch die Führung des Dornaufnahmeelements 9 in dem Druckmittelzylinder 2 sichergestellt. Während des Druckbetriebes bleibt der Druckraum 3 mit Druckluft beaufschlagt, so dass keine ungewollte Trennung von Lager 11 und Dornauflagefläche 12 auftritt.Im in Fig. 1 , shown operating state of the pressure chamber is acted upon by the compressed air supply 6 with compressed air, so that the piston 4 moves in the axial direction of the pressure roller mandrel 13 to. An axial guidance of the piston 4 is ensured by the guidance of the mandrel receiving element 9 in the pressure medium cylinder 2. During the printing operation of the pressure chamber 3 is subjected to compressed air, so that no unwanted separation of bearing 11 and mandrel support surface 12 occurs.

Um den in Fig. 2 dargestellten Betriebszustand zu erreichen, wird der Druckraum über die Druckluftzuführung 7 mit Druckluft beaufschlagt, so dass sich der Kolben 4 und mit ihm das Dornaufnahmeelement 9 von dem Druckwalzendorn 13 weg bis in seine in der Fig. 2. gezeigte Endposition bewegt. Nach der Freigabe der Druckwalzenauflagefläche 12 können der Druckwalzendorn 13 und die Dornverriegelungseinheit 1 relativ zueinander bewegt werden. Im gezeigten Ausführungsbeispiel wird die Dornverriegelungseinheit 1 in Richtung des Pfeiles x bewegt. Zu diesem Zweck weist der Druckmittelzylinder 2 an zumindest einer Stelle einen Durchbruch 14 auf.To the in Fig. 2 To reach the operating state shown, the pressure chamber is acted upon by the compressed air supply 7 with compressed air, so that the piston 4 and with him the mandrel receiving member 9 away from the pressure roller mandrel 13 into its in the Fig. 2 , moved shown end position. After the release of the platen bearing surface 12, the platen 13 and the mandrel locking unit 1 can be moved relative to each other. In the exemplary embodiment shown, the mandrel locking unit 1 is moved in the direction of the arrow x. For this purpose, the pressure medium cylinder 2 at at least one point on an opening 14.

Die Fig. 3 zeigt die leicht versetzte Anordnung des Kolbens 4 und des Dornaufnahmeelements 9, um den Abstand zwischen Dornaufnahmeelement 9 und der Außenkante des Druckmittelzylinders 2 auf der Seite des Durchbruchs 14 zu minimieren. Bezugszeichenliste 1 Dornverriegelungseinheit 2 Druckmittelzylinder 3 Druckraum 4 Kolben 5 Dichtungsring 6 Druckluftzuführung 7 Druckluftzuführung 8 Führungsbereich 9 Dornaufnahmeelement 10 Dichtung 11 Lager 12 Dornauflagefläche 13 Druckwalzendorn 14 Durchbruch x Bewegungsrichtung der Dornverriegelungseinheit The Fig. 3 shows the slightly staggered arrangement of the piston 4 and the mandrel receiving member 9 to minimize the distance between the mandrel receiving member 9 and the outer edge of the pressure medium cylinder 2 on the side of the aperture 14. LIST OF REFERENCE NUMBERS 1 Dorn locking unit 2 Pressure cylinder 3 pressure chamber 4 piston 5 sealing ring 6 Compressed air supply 7 Compressed air supply 8th guide region 9 Mandrel receiving element 10 poetry 11 camp 12 Dorn bearing surface 13 Pressure roll mandrel 14 breakthrough x Direction of movement of the mandrel locking unit

Claims (7)

  1. Mandrel-locking unit (1) for a rotary printing machine with
    - a mandrel-mounting element (9) that forms a hollow body and accommodates in an enclosed form in its interior a bearing (11) for mounting a print roller mandrel (13) having a mandrel-supporting surface (12) and that can be slid between a mounting position in which the print roller mandrel (13) is in mesh with the bearing (11) and a release position in which the print roller mandrel (13) is out of mesh with the bearing (11),
    - a pressurizing medium cylinder (2) comprising a pressure chamber (3) and a piston (4) located inside it for sliding the mandrel-mounting element (9) between the mounting position and the release position, where the piston (4) delimits the pressure chamber (3) at a boundary surface and is connected to the mandrel-mounting element (9) at a connecting point for the transfer of the force required for sliding the mandrel-mounting element,
    characterized in
    - that the distance between the boundary surface and the connecting point is smaller than the maximum stroke of the piston (4) in the pressurizing medium cylinder (2),
    - that the inner diameter of the pressurizing medium cylinder (2) is larger than the outer diameter of the mandrel-mounting element (9) and
    - that the pressurizing medium cylinder comprises a break-through (14) that is open in the release position of the mandrel-mounting element (9) so that the print roller mandrel (13) and the mandrel-locking unit (1) can be separated from one another by a movement in relation to one another.
  2. Mandrel-locking unit (1) according to claim 1,
    characterized in that
    the distance between the boundary surface and the connecting point is smaller than three quarters of the maximum stroke of the piston (4) in the pressurizing medium cylinder (2).
  3. Mandrel-locking unit (1) according to any of the preceding claims,
    characterized in that
    the distance between the boundary surface and the connecting point is smaller than half of the maximum stroke of the piston (4) in the pressurizing medium cylinder (2).
  4. Mandrel-locking unit (1) according to any of the preceding claims,
    characterized in that
    parts of the mandrel-mounting element (9) can be displaced into the pressurizing medium cylinder (2).
  5. Mandrel-locking unit (1) according to one of the preceding claims,
    characterized in that
    the piston (4) is a disk without a piston rod.
  6. Mandrel-locking unit (1) according to one of the preceding claims,
    characterized in that
    the connecting point between the piston (4) and the mandrel-mounting element (9) has a screwed connection.
  7. Mandrel-locking unit (1) according to one of the preceding claims,
    characterized in that
    the mandrel-mounting element (9) and the pressurizing medium cylinder (2) are shaped as circular cylinders and that their axes of symmetry extend parallel to the distance between one another.
EP04733566A 2003-05-23 2004-05-18 Mandrel locking unit for printing roller mandrels in a rotary printing machine Expired - Lifetime EP1628828B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10323805A DE10323805B3 (en) 2003-05-23 2003-05-23 Rod-locking unit for a rotary printing machine comprises a piston defining a pressure chamber at a boundary and a connecting point which are separated by a distance that is shorter than the maximum stroke of the piston
PCT/EP2004/005488 WO2004103706A2 (en) 2003-05-23 2004-05-18 Mandrel locking unit for printing roller mandrels in a rotary printing machine

Publications (2)

Publication Number Publication Date
EP1628828A2 EP1628828A2 (en) 2006-03-01
EP1628828B1 true EP1628828B1 (en) 2010-04-14

Family

ID=33154510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04733566A Expired - Lifetime EP1628828B1 (en) 2003-05-23 2004-05-18 Mandrel locking unit for printing roller mandrels in a rotary printing machine

Country Status (6)

Country Link
US (1) US7900559B2 (en)
EP (1) EP1628828B1 (en)
AT (1) ATE464183T1 (en)
DE (2) DE10323805B3 (en)
ES (1) ES2343250T3 (en)
WO (1) WO2004103706A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008514469A (en) * 2004-09-29 2008-05-08 ゴス インターナショナル コーポレイション Inboard cantilever cylinder support for printing press
DE102005017182A1 (en) * 2005-04-13 2006-10-19 Man Roland Druckmaschinen Ag Apparatus and method for pressing a fabric to a printing cylinder of a rotary printing machine
US9126395B2 (en) 2012-04-30 2015-09-08 Rossini S.P.A. Bridge sleeves with diametrically expandable stabilizers
US9120302B2 (en) 2012-04-30 2015-09-01 Rossini S.P.A. Bridge sleeves with diametrically expandable stabilizers
ES2941384T3 (en) * 2020-05-26 2023-05-22 Bobst Bielefeld Gmbh Bearing assembly for supporting a printing cylinder or anilox roll on a printing machine and printing press

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE543117C (en) * 1930-03-02 1932-02-01 Albert Schnellpressen Storage for cylinders on printing machines, especially for the forme cylinders on rotogravure printing machines
US2460504A (en) * 1944-10-24 1949-02-01 William C Huebner Printing apparatus
US3147702A (en) * 1962-10-01 1964-09-08 Clary Corp Printing press roll supporting and adjusting means
US4083205A (en) * 1970-11-05 1978-04-11 Imperial Chemical Industries Limited Textile printing apparatus
JP2874128B2 (en) * 1993-12-27 1999-03-24 株式会社神戸製鋼所 Rim clamp device for tire testing machine
IT1277167B1 (en) * 1995-03-20 1997-11-05 Rossini Erminio Spa IMPROVEMENTS TO DEFORMABLE SPINDLES FOR ROTARY PRINTING CYLINDERS
DE19705369C2 (en) * 1997-02-12 2003-03-06 Windmoeller & Hoelscher press
SE516997C2 (en) * 1999-11-16 2002-04-02 Etp Transmission Ab Hydromechanical chuck mounting tool
US20030145472A1 (en) * 2002-02-01 2003-08-07 Swift Edgar Leon Reciprocating saw with flush cutting capability

Also Published As

Publication number Publication date
WO2004103706A2 (en) 2004-12-02
ES2343250T3 (en) 2010-07-27
US7900559B2 (en) 2011-03-08
ATE464183T1 (en) 2010-04-15
DE502004011043D1 (en) 2010-05-27
WO2004103706A3 (en) 2005-05-26
EP1628828A2 (en) 2006-03-01
DE10323805B3 (en) 2004-11-11
US20060266236A1 (en) 2006-11-30

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