EP1758739B1 - Cylinders for machines that process sheet-like material - Google Patents

Cylinders for machines that process sheet-like material Download PDF

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Publication number
EP1758739B1
EP1758739B1 EP05752566A EP05752566A EP1758739B1 EP 1758739 B1 EP1758739 B1 EP 1758739B1 EP 05752566 A EP05752566 A EP 05752566A EP 05752566 A EP05752566 A EP 05752566A EP 1758739 B1 EP1758739 B1 EP 1758739B1
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EP
European Patent Office
Prior art keywords
lubricant
cylinder according
cylinder
pressurized
gas
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EP05752566A
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German (de)
French (fr)
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EP1758739A1 (en
Inventor
Rolf Michael Thiemicke
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Officine Meccaniche Giovanni Cerutti SpA
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CERUTTI SpA OFF MEC
Officine Meccaniche Giovanni Cerutti SpA
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    • 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
    • B41F13/18—Impression cylinders
    • 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
    • B41F13/18—Impression cylinders
    • B41F13/187—Impression cylinders for rotogravure
    • 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

Definitions

  • the invention relates to a cylinder for web-like material processing machines according to the preamble of claim 1.
  • a cylinder for sheet material processing machines comprising a rotatably mounted spindle and a tubular jacket which is rotatably mounted on the spindle.
  • the jacket of the impression roller is made of steel, for example, and carries a sleeve (also called sleeve) made of rubber-like material.
  • a sleeve also called sleeve
  • the cylinder described in this document uses a heat exchanger that is integrated with the cylinder.
  • the special problems of simultaneously efficient lubrication of the moving parts of the cylinder can not be solved by the integrated heat exchanger.
  • a cylinder in which a lubricant and cooling circuit is formed.
  • fluid flow is created within the cylinder, particularly in the space between a stationary support and the tubular jacket.
  • the sealing of the flow area continues to cause difficulties at high rotational speeds and in the case of an optionally desired bending of the cylinder.
  • this design does not provide a solution to the way in which changing the applied to the shell of the cylinder sleeve can be facilitated or supported.
  • the conventional use of a sliding layer produced by compressed air is ruled out because the intended lubricant circuit no longer allows the outflow of compressed air through the jacket of the cylinder.
  • the US 5 174 206 A discloses a cylinder for web-like material processing machines with a rotatably mounted shaft and a rotatably mounted on this over several bearings mantle, wherein between the axis and the jacket is provided a partially extending in the axial direction lubricant space.
  • the invention has for its object to provide a cylinder for web material processing machines.
  • the two sealing rings may consist of different materials and have different shapes, whereby they can be optimally adapted to the respective medium contained in the space to be sealed. It is particularly advantageous if the compressed gas space can be supplied with compressed gas, in particular compressed air, via a compressed gas bore extending at least partially in the axis. At the front-side mouth of the pressure gas bore in the axis can be connected in this case, particularly simple, a compressed gas supply line. Starting from the compressed gas bore, several supply bores can be led to the compressed gas space.
  • the lubricant for efficient lubrication of the bearings and simultaneous cooling of the cylinder jacket, it is advantageous if the lubricant, for.
  • As oil during the rotation of the shell is caused to a targeted flow.
  • the heat generated by the flexing work can be dissipated quickly from the inside of the jacket.
  • the flow can preferably pass through the individual bearings, which are arranged between the axis and the jacket, in order to ensure optimum lubrication conditions there. Since the individual bearings hinder a running in the axial direction of free lubricant flow, the lubricant must be specifically accelerated in the axial direction and returned to the home page after passing through such a camp.
  • an inclined oil deflector is preferably arranged in the vicinity of the inner surface of the shell. Upon rotation of the shell, this first oil deflector peels off the oil adhering to the inner surface of the shell and accelerates it in the axial direction. It is also advantageous if a second oil deflector is provided which, after flowing through a bearing, diverts the lubricant flow extending in the axial direction substantially in a radial direction, on the one hand to close the lubricant circuit and on the other hand to minimize the oil pressure acting on the lubricant side seal.
  • the second oil deflector is preferably arranged in the immediate vicinity of the lubricant-side sealing ring.
  • a impression roller or cylinder a one-piece or multi-piece formed axis 01, which is rotatably mounted with one end in a fixed bearing and with the other end in a floating bearing (not shown).
  • the printing press is preferably a gravure printing machine in which the impression roller acts as an impression cylinder of a forme cylinder for printing on a printing material.
  • the cylinder in particular a sleeve of the cylinder can have one or more printing plates.
  • the second main component of the cylinder is a tubular jacket 02, which is rotatably mounted on the axis 01.
  • the bearing of the shell 02 are several bearings 03, which are preferably designed as a ball bearing o. ⁇ . Rolling.
  • a pressure gas bore 04 extends starting from the fixed bearing side (in the figure on the left) of the axis 01.
  • the pressure gas bore 04 extends up to preferably a plurality of supply bores 05, which extend essentially radially through the axis 01 and open into a compressed gas space 06 .
  • the compressed gas chamber 06 communicates with a plurality of outlet openings 07, which are distributed on the circumference of the shell 02.
  • a lubricant chamber 08 is provided for the lubrication of the bearings 03 and the rotatable shell 02, which extends in the axial direction in sections between the axis 01 and the inner wall of the shell 02.
  • a suitable lubricant especially oil.
  • the two sealing rings 09; 10 are for example arranged immediately adjacent to each other and preferably each consist of a material which is adapted to the medium contained in the adjacent space (oil or compressed air).
  • the sealing rings 09; 10 are also located as close as possible to one of the bearings 03, on which the shell 02 is supported. The resulting from the possible bending of the Presseurmantels mechanical loads on the sealing rings 09; 10 can be kept small.
  • the sealing edges of the sealing rings 09; 10 are each facing the adjacent lubricant 08 or compressed gas chamber 06, as illustrated by the arrows.
  • a grease chamber for lubricating the pressure gas side sealing ring.
  • a directed lubricant flow is formed as the shell 02 rotates as follows: At rest, the lubricating oil collects in the lower part 8a of the lubricant space 08. When the shell 02 rotates, an oil layer forms on the inside surface of the lubricant Sheath 02, which has a certain thickness depending on the rotational speed and viscosity of the oil.
  • a first oil deflector 11 is provided, which partially peels off the oil layer adhering to the inner surface of the casing 02.
  • the first oil deflector 11 is slightly inclined to accelerate the peeled oil in the axial direction of the cylinder.
  • the resulting lubricant flow is indicated by a dashed line in Fig. 2 shown. Since the first oil deflector 11 is in the vicinity of the bearing 03, the lubricant flow is passed through the bearing 03. In the flow direction behind the bearing 03 in turn forms a radial oil layer the inner surface of the shell 02 from.
  • a second oil deflector 12 is provided, which peels off the lubricating oil from the inner surface of the casing 02 and directs it in the direction of the axis 01.
  • the lubricant circuit is closed in the illustrated embodiment by a lubricant channel 13 which extends obliquely to the axial direction of the cylinder through the axis 01.
  • a lubricant channel 13 which extends obliquely to the axial direction of the cylinder through the axis 01.
  • the lubricant channel 13 extends through the axis 01 and there intersects the pressure gas bore 04, a seal between the lubricant channel 13 and the pressure gas bore 04 must take place. This is done, for example, by a pipe 14 is inserted into a corresponding bore in the axis 01. It would also be conceivable that the lubricant channel 13 extends radially offset to the pressure gas bore 04 and in this way an intersection of these two cavities is avoided.
  • ⁇ lbe alternahrung 16 To seal the lubricant chamber 08 to the outside more sealing elements 15 are provided in the end regions of the cylinder.
  • an externally accessible ⁇ lbe spallbohrung 16 is present, which extends for example through the axis 01 and in the case of an intersection with the pressure gas bore 04 must also be sealed by a pipe 14.
  • the ⁇ lbe spallbohrung 16 extends from an oil filling 17 into the lubricant space 08.
  • the ⁇ lbe spallbohrung 16 can be used simultaneously for the venting of the lubricant space 08.
  • a Dipstick (not shown) are used, with which the oil level can be controlled.
  • a plurality of lubricant spaces 08 and, if required, a plurality of compressed gas spaces 06 may be formed on the cylinder, which are constructed in a comparable manner and sealed from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • General Details Of Gearings (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Disintegrating Or Milling (AREA)
  • Replacement Of Web Rolls (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

A cylinder which is part of a machine which processes lengths of material includes a rotationally fixed central pin or shaft. A casing or jacket is rotatably supported on the central pin or shaft by a number of bearings. A sleeve can be placed over the outer surface of the jacket or casing. A lubricant space, which extends, in sections, in an axial direction, is located between the pin or shaft and an inner surface of the jacket or casing. A compressed gas space which extends, in sections, in an axial direction, is provided with outlet openings on an outer surface of the jacket or casing.

Description

Die Erfindung betrifft einen Zylinder für bahnförmiges Material verarbeitende Maschinen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a cylinder for web-like material processing machines according to the preamble of claim 1.

Der Grundaufbau eines solchen Zylinders, der vorzugsweise in Tiefdruckmaschinen eingesetzt wird, kann beispielsweise der EP 0 047 435 B1 entnommen werden. In dieser Druckschrift ist auch die prinzipielle Anordnung des Presseurs in einer Tiefdruckmaschine beschrieben. Ebenso werden Möglichkeiten dargestellt, die eine Verbiegung des Presseurs zur Anpassung an die Biegelinie des gegenüberliegenden Druckzylinders gestatten. Eine besondere Schwierigkeit bisher bekannter Bauformen besteht darin, die Lager und bewegten Teile des Presseurs effektiv zu schmieren und gegebenenfalls zu kühlen und gleichzeitig geeignete Mittel für das Aufziehen unterschiedlicher Hülsen auf den Mantel des Presseurs bereit zu stellen.The basic structure of such a cylinder, which is preferably used in gravure printing machines, for example, the EP 0 047 435 B1 be removed. In this document, the basic arrangement of the impression in a gravure printing machine is described. Likewise, possibilities are shown which allow a bending of the impression roller to adapt to the bending line of the opposite printing cylinder. A particular difficulty hitherto known designs is to lubricate the bearings and moving parts of the impression effectively and optionally cool and at the same time to provide suitable means for mounting different sleeves on the jacket of the impression.

Aus der EP 0 179 363 B1 ist ein Zylinder für bahnförmiges Material verarbeitende Maschinen bekannt, der eine drehfest gelagerte Spindel und einen rohrförmigen Mantel umfasst, welcher drehbar auf der Spindel gelagert ist. Der Mantel des Presseurs ist beispielsweise aus Stahl hergestellt und trägt eine Hülse (auch Sleeve genannt) aus gummiartigem Material. Bei hohen Druckgeschwindigkeiten, die eine hohe Rotationszahl des Zylinders zur Folge haben, kommt es durch die geleistete Walkarbeit zu einer erheblichen Erwärmung der Hülse. Um die dabei entstehende Wärme effizient abzuführen, verwendet der in diesem Dokument beschriebene Zylinder einen Wärmetauscher, der in den Zylinder integriert ist. Dies führt allerdings zu einem komplizierten und wartungsintensiven Aufbau des Zylinders. Die besonderen Probleme einer gleichzeitig effizienten Schmierung der bewegten Teile des Zylinders können durch den integrierten Wärmetauscher nicht gelöst werden.From the EP 0 179 363 B1 a cylinder for sheet material processing machines is known, comprising a rotatably mounted spindle and a tubular jacket which is rotatably mounted on the spindle. The jacket of the impression roller is made of steel, for example, and carries a sleeve (also called sleeve) made of rubber-like material. At high printing speeds, which have a high rotational speed of the cylinder result, it comes through the flexing done to a considerable warming of the sleeve. To effectively dissipate the resulting heat, the cylinder described in this document uses a heat exchanger that is integrated with the cylinder. However, this leads to a complicated and maintenance-intensive construction of the cylinder. The special problems of simultaneously efficient lubrication of the moving parts of the cylinder can not be solved by the integrated heat exchanger.

In der WO 01/85454 A1 ist ein Zylinder gezeigt, in welchem ein Schmiermittel- und Kühlkreislauf ausgebildet ist. Für eine effektive Schmierung aller beweglichen Elemente und die gleichzeitige Kühlung wird eine Fluidströmung innerhalb des Zylinders, insbesondere in dem Raum zwischen einem feststehenden Träger und dem rohrförmigen Mantel erzeugt. Die Abdichtung des Strömungsbereiches bereitet allerdings bei hohen Rotationsgeschwindigkeiten und bei einer gegebenenfalls gewünschten Verbiegung des Zylinders weiterhin Schwierigkeiten. Außerdem gibt diese Gestaltung keine Lösung dafür an, auf welche Weise das Wechseln der auf den Mantel des Zylinders aufzubringenden Hülse erleichtert bzw. unterstützt werden kann. Die herkömmliche Nutzung einer durch Druckluft erzeugten Gleitschicht scheidet aus, da der vorgesehene Schmiermittelkreislauf das Ausströmen der Druckluft durch den Mantel des Zylinders nicht mehr gestattet.In the WO 01/85454 A1 a cylinder is shown in which a lubricant and cooling circuit is formed. For effective lubrication of all movable elements and simultaneous cooling, fluid flow is created within the cylinder, particularly in the space between a stationary support and the tubular jacket. The sealing of the flow area, however, continues to cause difficulties at high rotational speeds and in the case of an optionally desired bending of the cylinder. In addition, this design does not provide a solution to the way in which changing the applied to the shell of the cylinder sleeve can be facilitated or supported. The conventional use of a sliding layer produced by compressed air is ruled out because the intended lubricant circuit no longer allows the outflow of compressed air through the jacket of the cylinder.

Die US 5 174 206 A offenbart einen Zylinder für bahnförmiges Material verarbeitende Maschinen mit einer drehfest gelagerten Achse und einem auf dieser über mehrere Lager drehbar gelagertem Mantel, wobei zwischen der Achse und dem Mantel ein sich abschnittsweise in axialer Richtung erstreckender Schmiermittelraum vorgesehen ist.The US 5 174 206 A discloses a cylinder for web-like material processing machines with a rotatably mounted shaft and a rotatably mounted on this over several bearings mantle, wherein between the axis and the jacket is provided a partially extending in the axial direction lubricant space.

Der Erfindung liegt die Aufgabe zugrunde, einen Zylinder für bahnförmiges Material verarbeitende Maschinen zu schaffen.The invention has for its object to provide a cylinder for web material processing machines.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass bei diesem Zylinder sowohl eine effektive Schmierung der bewegten Bauteile als auch ein leichtes Wechseln der Hülsen (Sleeve) unter Einsatz von Druckluft möglich ist.The achievable with the present invention consist in particular that in this cylinder both an effective lubrication of the moving components and a slight change of the sleeves (sleeve) using compressed air is possible.

Durch die benachbarte Anordnung von zwei Dichtringen, deren Dichtränder voneinander abgewandt und damit einerseits dem Schmiermittelraum und andererseits dem Druckgasraum zugewandt sind, wird eine verbesserte Abdichtung zwischen diesen unterschiedliche Medien führenden Räumen erzielt. Dadurch ist sichergestellt, dass kein Schmiermittel über den Druckgasraum verloren geht und auch nicht mit dem Druckgas aus dem Zylinder austreten kann. Die beiden Dichtringe können aus unterschiedlichen Materialen bestehen und unterschiedliche Formen aufweisen, wodurch sie an das jeweils in dem abzudichtenden Raum enthaltende Medium optimal angepasst werden können. Es ist besonders vorteilhaft, wenn der Druckgasraum über eine zumindest teilweise in der Achse verlaufende Druckgasbohrung mit Druckgas, insbesondere Druckluft, versorgt werden kann. An der stirnseitigen Mündung der Druckgasbohrung in der Achse kann in diesem Fall besonders einfach eine Druckgasversorgungsleitung angeschlossen werden. Ausgehend von der Druckgasbohrung können mehrere Versorgungsbohrungen zum Druckgasraum geführt werden.Due to the adjacent arrangement of two sealing rings, the sealing edges facing away from each other and thus on the one hand the lubricant space and on the other hand facing the compressed gas space, an improved seal between them achieved different media leading rooms. This ensures that no lubricant is lost through the compressed gas space and can not escape with the compressed gas from the cylinder. The two sealing rings may consist of different materials and have different shapes, whereby they can be optimally adapted to the respective medium contained in the space to be sealed. It is particularly advantageous if the compressed gas space can be supplied with compressed gas, in particular compressed air, via a compressed gas bore extending at least partially in the axis. At the front-side mouth of the pressure gas bore in the axis can be connected in this case, particularly simple, a compressed gas supply line. Starting from the compressed gas bore, several supply bores can be led to the compressed gas space.

Für eine effiziente Schmierung der Lager und eine gleichzeitige Kühlung des Zylindermantels ist es vorteilhaft, wenn das Schmiermittel, z. B. Öl, während der Drehung des Mantels zu einer gezielten Strömung veranlasst wird. Dadurch kann die durch die Walkarbeit entstehende Wärme schnell von der Innenseite des Mantels abgeführt werden. Außerdem kann die Strömung bevorzugt durch die einzelnen Lager verlaufen, welche zwischen der Achse und dem Mantel angeordnet sind, um auch dort optimale Schmierbedingungen zu gewährleisten. Da die einzelnen Lager eine in axialer Richtung verlaufende freie Schmiermittelströmung behindern, muss das Schmiermittel gezielt in Achsrichtung beschleunigt und nach dem Durchlaufen eines solchen Lagers auch auf die Startseite zurückgeführt werden. Dafür ist es vorteilhaft, einen Schmiermittelkanal durch die Achse hindurch zu führen, der schräg zur Achsrichtung verläuft und dessen Enden in durch das zu schmierende Lager getrennten Bereichen des Schmiermittelraums liegen.For efficient lubrication of the bearings and simultaneous cooling of the cylinder jacket, it is advantageous if the lubricant, for. As oil, during the rotation of the shell is caused to a targeted flow. As a result, the heat generated by the flexing work can be dissipated quickly from the inside of the jacket. In addition, the flow can preferably pass through the individual bearings, which are arranged between the axis and the jacket, in order to ensure optimum lubrication conditions there. Since the individual bearings hinder a running in the axial direction of free lubricant flow, the lubricant must be specifically accelerated in the axial direction and returned to the home page after passing through such a camp. For this purpose, it is advantageous to guide a lubricant channel through the axis which runs obliquely to the axial direction and whose ends are located in regions of the lubricant space which are separated by the bearing to be lubricated.

Um das Schmiermittel gezielt zu beschleunigen, damit es durch ein rotierendes Lager (insbesondere kommen Wälzlager zum Einsatz) hindurchtreten kann, wird vorzugsweise ein schräggestellter Ölabweiser in der Nähe der Innenfläche des Mantels angeordnet. Bei der Drehung des Mantels schält dieser erste Ölabweiser das an der Innenfläche des Mantels anhaftende Öl ab und beschleunigt es in Achsrichtung. Es ist außerdem vorteilhaft, wenn ein zweiter Ölabweiser vorgesehen ist, der nach einem durchströmten Lager die in Achsrichtung verlaufende Schmiermittelströmung im Wesentlichen in eine radiale Richtung umleitet, einerseits um den Schmiermitteikreisiauf zu schließen und andererseits um den auf den schmiermittelseitigen Dichtring wirkenden Öldruck zu minimieren. Der zweite Ölabweiser wird dazu vorzugsweise in unmittelbarer Nähe des schmiermittelseitigen Dichtrings angeordnet.In order to accelerate the lubricant specifically so that it can pass through a rotating bearing (in particular roller bearings are used), an inclined oil deflector is preferably arranged in the vicinity of the inner surface of the shell. Upon rotation of the shell, this first oil deflector peels off the oil adhering to the inner surface of the shell and accelerates it in the axial direction. It is also advantageous if a second oil deflector is provided which, after flowing through a bearing, diverts the lubricant flow extending in the axial direction substantially in a radial direction, on the one hand to close the lubricant circuit and on the other hand to minimize the oil pressure acting on the lubricant side seal. For this purpose, the second oil deflector is preferably arranged in the immediate vicinity of the lubricant-side sealing ring.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawing and will be described in more detail below.

Es zeigen:

Fig. 1
eine geschnittene Übersichtsdarstellung eines erfindungsgemäßen Zylinders, wobei nur einzelne Abschnitte des Zylinders gezeichnet sind;
Fig. 2
eine geschnittene Detaildarstellung von zwei Abschnitten des Zylinders, wobei die gewählte Schnittebene ebenfalls achsparallel aber senkrecht zu der in Fig. 1 angewendeten Schnittebene verläuft;
Fig. 3
eine Ausführungsvariante gemäß Figur 2.
Show it:
Fig. 1
a sectional overview of a cylinder according to the invention, wherein only individual portions of the cylinder are drawn;
Fig. 2
a sectional detail of two sections of the cylinder, wherein the selected cutting plane also parallel to the axis but perpendicular to the in Fig. 1 applied cutting plane runs;
Fig. 3
a variant according to FIG. 2 ,

Wie aus der Längsschnittdarstellung in Fig. 1 ersichtlich ist, umfasst ein Presseur bzw. Zylinder eine einstückig oder auch mehrstückig ausgebildete Achse 01, die mit einem Ende in einem Festlager und mit dem anderen Ende in einem Loslager (nicht gezeigt) drehfest gelagert ist. Die Druckmaschine ist vorzugsweise eine Tiefdruckmaschine, in welcher der Presseur als Gegendruckzylinder eines Formzylinders zum Bedrucken eines Druckstoffes wirkt. Auch kann der Zylinder, insbesondere eine Hülse des Zylinders eine oder mehrere Druckformen aufweisen. Der zweite Hauptbestandteil des Zylinders ist ein rohrförmiger Mantel 02, der drehbar auf dem Achse 01 gelagert ist. Der Lagerung des Mantels 02 dienen mehrere Lager 03, die bevorzugt als Kugellager o. ä. Wälzlager ausgebildet sind.As from the longitudinal section in Fig. 1 it can be seen, comprises a impression roller or cylinder a one-piece or multi-piece formed axis 01, which is rotatably mounted with one end in a fixed bearing and with the other end in a floating bearing (not shown). The printing press is preferably a gravure printing machine in which the impression roller acts as an impression cylinder of a forme cylinder for printing on a printing material. Also, the cylinder, in particular a sleeve of the cylinder can have one or more printing plates. The second main component of the cylinder is a tubular jacket 02, which is rotatably mounted on the axis 01. The bearing of the shell 02 are several bearings 03, which are preferably designed as a ball bearing o. Ä. Rolling.

Bei der dargestellten Ausführungsform verläuft beginnend auf der Festlagerseite (in der Figur links) der Achse 01 eine Druckgasbohrung 04. Die Druckgasbohrung 04 erstreckt sich bis zu bevorzugt mehreren Versorgungsbohrungen 05, die sich im Wesentlichen radial durch die Achse 01 erstrecken und in einem Druckgasraum 06 münden. Der Druckgasraum 06 kommuniziert mit mehreren Austrittsöffnungen 07, die am Umfang des Mantels 02 verteilt sind. Beim Aufziehen einer nicht dargestellten Hülse (Sleeve) auf den Mantel 02 wird über den Druckgasraum 06 Druckluft aus den Austrittsöffnungen 07 herausgepresst, um die Hülse leichter auf den Mantel 02 aufziehen zu können.In the illustrated embodiment, starting from the fixed bearing side (in the figure on the left) of the axis 01, a pressure gas bore 04 extends. The pressure gas bore 04 extends up to preferably a plurality of supply bores 05, which extend essentially radially through the axis 01 and open into a compressed gas space 06 , The compressed gas chamber 06 communicates with a plurality of outlet openings 07, which are distributed on the circumference of the shell 02. When mounting a sleeve (sleeve), not shown, on the jacket 02, compressed air is forced out of the outlet openings 07 via the compressed gas chamber 06 in order to be able to easily pull the sleeve onto the jacket 02.

In den Endbereichen des Zylinders ist für die Schmierung der Lager 03 und des drehbaren Mantels 02 jeweils ein Schmiermittelraum 08 vorgesehen, der sich in axialer Richtung abschnittsweise zwischen der Achse 01 und der Innenwand des Mantels 02 erstreckt. Im Schmiermittelraum 08 befindet sich ein geeignetes Schmiermittel, insbesondere Öl.In the end regions of the cylinder, a lubricant chamber 08 is provided for the lubrication of the bearings 03 and the rotatable shell 02, which extends in the axial direction in sections between the axis 01 and the inner wall of the shell 02. In the lubricant chamber 08 is a suitable lubricant, especially oil.

Aus der in Fig. 2 dargestellten Detailzeichnung des Zylinders lassen sich die konstruktiven Besonderheiten noch besser erkennen. Die Strömung der in die Druckgasbohrung 04 eingeleiteten Druckluft, beispielsweise mit einem Druck von 15 bar, ist durch eine dicke strichpunktierte Linie verdeutlicht. Die Druckluftströmung verläuft durch die Druckgasbohrung 04 und die sich anschließende Versorgungsbohrung 05 in den Druckgasraum 06 und von dort durch die Austrittsöffnungen 07 nach außen.From the in Fig. 2 The detailed drawing of the cylinder shows the design features even better. The flow of introduced into the compressed gas bore 04 compressed air, for example, with a pressure of 15 bar, is illustrated by a thick dot-dash line. The compressed air flow passes through the pressure gas bore 04 and the subsequent supply bore 05 in the compressed gas space 06 and from there through the outlet openings 07 to the outside.

Um eine wirkungsvolle, dichte Trennung zwischen dem Druckgasraum 06 und dem Schmiermittelraum 08 zu erzielen, sind diese beiden Räume jeweils durch einen schmiermittelseitigen Dichtring 09 und einen druckgasseitigen Dichtring 10 voneinander getrennt. Die beiden Dichtringe 09; 10 sind beispielsweise unmittelbar benachbart zueinander angeordnet und bestehen vorzugsweise jeweils aus einem Material, welches an das im angrenzenden Raum enthaltene Medium angepasst ist (Öl bzw. Druckluft). Die Dichtringe 09; 10 befinden sich außerdem möglichst nahe an einem der Lager 03, an welchen der Mantel 02 abgestützt ist. Die aus der möglichen Verbiegung des Presseurmantels resultierenden mechanischen Belastungen auf die Dichtringe 09; 10 können dadurch klein gehalten werden. Die Dichtränder der Dichtringe 09; 10 sind jeweils zum angrenzenden Schmiermittel- 08 bzw. Druckgasraum 06 gewandt, wie dies durch die eingezeichneten Pfeile verdeutlicht wird. Auf diese Weise erfolgt jeweils eine getrennte Abdichtung des Schmiermittelraums 08 und des Druckgasraumes 06, so dass die entsprechende Belastung nur einseitig auf den jeweiligen Dichtring 09; 10 wirkt. Dadurch kann über einen deutlich längeren Zeitraum eine gute Abdichtung der beiden Räume 06; 08 erreicht werden, im Vergleich zur Nutzung eines gemeinsamen Dichtrings 09; 10 für beide Räume 06; 08, der dann von beiden Seiten durch unterschiedliche Medien belastet werden würde.In order to achieve an effective, tight separation between the compressed gas chamber 06 and the lubricant chamber 08, these two spaces are each separated by a lubricant side sealing ring 09 and a pressure gas side sealing ring 10. The two sealing rings 09; 10 are for example arranged immediately adjacent to each other and preferably each consist of a material which is adapted to the medium contained in the adjacent space (oil or compressed air). The sealing rings 09; 10 are also located as close as possible to one of the bearings 03, on which the shell 02 is supported. The resulting from the possible bending of the Presseurmantels mechanical loads on the sealing rings 09; 10 can be kept small. The sealing edges of the sealing rings 09; 10 are each facing the adjacent lubricant 08 or compressed gas chamber 06, as illustrated by the arrows. In this way, in each case a separate sealing of the lubricant space 08 and the compressed gas space 06, so that the corresponding load only on one side of the respective sealing ring 09; 10 acts. As a result, over a much longer period a good seal of the two spaces 06; 08 can be achieved, compared to the use of a common sealing ring 09; 10 for both rooms 06; 08, which would then be burdened by both sides by different media.

In einer bevorzugten Ausführung (Fig. 3) ist zwischen schmiermittelseitigem Dichtring 09 und druckgasseitigem Dichtring 10 mittels eines Zwischenrings eine Fettkammer zur Schmierung des druckgasseitigen Dichtrings ausgebildet.In a preferred embodiment ( Fig. 3 ) is formed between the lubricant side sealing ring 09 and pressure gas side sealing ring 10 by means of an intermediate ring, a grease chamber for lubricating the pressure gas side sealing ring.

Um eine effiziente Schmierung im Schmiermittelraum 08 zu erreichen, wird bei der Drehung des Mantels 02 eine gerichtete Schmiermittelströmung wie folgt ausgebildet: Im Ruhezustand sammelt sich das Schmieröl im unteren Teil 8a des Schmiermittelraums 08. Bei rotierendem Mantel 02 bildet sich eine Ölschicht an der Innenfläche des Mantels 02 aus, die je nach Rotationsgeschwindigkeit und Viskosität des Öls eine bestimmte Dicke aufweist. Um das Schmieröl auch durch das im Schmiermittelraum 08 angeordnete Lager 03 hindurch zu führen, ist ein erster Ölabweiser 11 vorgesehen, der die an der Innenfläche des Mantels 02 anhaftende Ölschicht teilweise abschält. Der erste Ölabweiser 11 ist leicht schräg gestellt, um das abgeschälte Öl in Achsrichtung des Zylinders zu beschleunigen. Die resultierende Schmiermittelströmung ist durch eine gestrichelte Linie in Fig. 2 dargestellt. Da sich der erste Ölabweiser 11 in der Nähe des Lagers 03 befindet, wird die Schmiermittelströmung durch das Lager 03 hindurchgeleitet. In Strömungsrichtung hinter dem Lager 03 bildet sich wiederum eine radiale Ölschicht an der Innenfläche des Mantels 02 aus.In order to achieve an efficient lubrication in the lubricant space 08, a directed lubricant flow is formed as the shell 02 rotates as follows: At rest, the lubricating oil collects in the lower part 8a of the lubricant space 08. When the shell 02 rotates, an oil layer forms on the inside surface of the lubricant Sheath 02, which has a certain thickness depending on the rotational speed and viscosity of the oil. In order to guide the lubricating oil through the bearing 03 arranged in the lubricant space 08, a first oil deflector 11 is provided, which partially peels off the oil layer adhering to the inner surface of the casing 02. The first oil deflector 11 is slightly inclined to accelerate the peeled oil in the axial direction of the cylinder. The resulting lubricant flow is indicated by a dashed line in Fig. 2 shown. Since the first oil deflector 11 is in the vicinity of the bearing 03, the lubricant flow is passed through the bearing 03. In the flow direction behind the bearing 03 in turn forms a radial oil layer the inner surface of the shell 02 from.

Um den Öldruck auf den schmiermittelseitigen Dichtring 09 trotzdem gering zu halten, ist ein zweiter Ölabweiser 12 vorgesehen, der das Schmieröl von der Innenfläche des Mantels 02 abschält und in Richtung zur Achse 01 leitet.In order nevertheless to keep the oil pressure on the lubricant-side sealing ring 09 low, a second oil deflector 12 is provided, which peels off the lubricating oil from the inner surface of the casing 02 and directs it in the direction of the axis 01.

Der Schmiermittelkreislauf wird bei der dargestellten Ausführungsform durch einen Schmiermittelkanal 13 geschlossen, welcher schräg zur Achsrichtung des Zylinders durch die Achse 01 verläuft. Die beiden Enden des Schmiermittelkanals 13 münden durch diese Anordnung in den durch das Lager 03 getrennten Bereichen des Schmiermittelraums 08. Durch den Schmiermittelkanal 13 läuft das Öl schwerkraftbedingt von der Rückseite des Lagers 03 zurück zur Vorderseite, wo es aufgrund der Rotation des Mantels 02 erneut an der Innenfläche des Mantels 02 verteilt wird.The lubricant circuit is closed in the illustrated embodiment by a lubricant channel 13 which extends obliquely to the axial direction of the cylinder through the axis 01. Through this arrangement, the two ends of the lubricant channel 13 open into the regions of the lubricant space 08 separated by the bearing 03. The oil passes through the lubricant channel 13 from the rear side of the bearing 03 back to the front side, where it rests again due to the rotation of the jacket 02 the inner surface of the shell 02 is distributed.

Sofern der Schmiermittelkanal 13 durch die Achse 01 verläuft und dort die Druckgasbohrung 04 kreuzt, muss eine Abdichtung zwischen dem Schmiermittelkanal 13 und der Druckgasbohrung 04 erfolgen. Dies geschieht beispielsweise, indem ein Rohr 14 in eine entsprechende Bohrung in der Achse 01 eingesetzt wird. Es wäre aber auch denkbar, dass der Schmiermittelkanal 13 radial versetzt zur Druckgasbohrung 04 verläuft und auf diese Weise eine Kreuzung dieser beiden Hohlräume vermieden wird.If the lubricant channel 13 extends through the axis 01 and there intersects the pressure gas bore 04, a seal between the lubricant channel 13 and the pressure gas bore 04 must take place. This is done, for example, by a pipe 14 is inserted into a corresponding bore in the axis 01. It would also be conceivable that the lubricant channel 13 extends radially offset to the pressure gas bore 04 and in this way an intersection of these two cavities is avoided.

Zur Abdichtung des Schmiermittelraums 08 nach außen sind in den Endbereichen des Zylinders weitere Dichtelemente 15 vorgesehen. Um das Öl in den Schmiermittelraum 08 einzufüllen und den Füllstand zu messen, ist eine von außen zugängliche Ölbefüllbohrung 16 vorhanden, die beispielsweise durch die Achse 01 verläuft und im Fall einer Kreuzung mit der Druckgasbohrung 04 ebenfalls durch ein Rohr 14 abgedichtet sein muss. Die Ölbefüllbohrung 16 erstreckt sich ausgehend von einer Ölbefüllöffnung 17 bis in den Schmiermittelraum 08. Die Ölbefüllbohrung 16 kann gleichzeitig für die Entlüftung des Schmiermittelraums 08 genutzt werden. Außerdem kann in die Ölbefüllbohrung 16 ein Messstab (nicht gezeigt) eingesetzt werden, mit welchem der Ölfüllstand kontrolliert werden kann.To seal the lubricant chamber 08 to the outside more sealing elements 15 are provided in the end regions of the cylinder. To fill the oil in the lubricant space 08 and to measure the level, an externally accessible Ölbefüllbohrung 16 is present, which extends for example through the axis 01 and in the case of an intersection with the pressure gas bore 04 must also be sealed by a pipe 14. The Ölbefüllbohrung 16 extends from an oil filling 17 into the lubricant space 08. The Ölbefüllbohrung 16 can be used simultaneously for the venting of the lubricant space 08. In addition, in the Ölbefüllbohrung 16 a Dipstick (not shown) are used, with which the oil level can be controlled.

Es ist darauf hinzuweisen, dass je nach Anwendungsfall prinzipiell mehrere Schmiermittelräume 08 und bei Bedarf auch mehrere Druckgasräume 06 an dem Zylinder ausgebildet sein können, die in vergleichbarer Weise aufgebaut und gegeneinander abgedichtet sind.It should be noted that, depending on the application, in principle a plurality of lubricant spaces 08 and, if required, a plurality of compressed gas spaces 06 may be formed on the cylinder, which are constructed in a comparable manner and sealed from each other.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Achseaxis
0202
Mantelcoat
0303
Lagercamp
0404
DruckgasbohrungPressure gas drilling
0505
Versorgungsbohrungsupply hole
0606
DruckgasraumPressure gas chamber
0707
Austrittsöffnungoutlet opening
0808
Schmiermittelraumlubricant space
08a08a
unterer Teil des Schmiermittelraumslower part of the lubricant space
0909
Schmiermittelseitiger DichtringLubricant-side sealing ring
1010
Druckgasseitiger DichtringCompressed gas side sealing ring
1111
Erster ÖlabweiserFirst oil deflector
1212
Zweiter ÖlabweiserSecond oil deflector
1313
Schmiermittelkanallubricant channel
1414
Rohrpipe
1515
Dichtelementesealing elements
1616
ÖlbefüllbohrungÖlbefüllbohrung
1717
ÖlbefüllöffnungÖlbefüllöffnung

Claims (32)

  1. Cylinder, for machines that process sheet-like material, having a shaft (01) that is mounted so as to be fixed against rotation and a shell (02) which is mounted on the latter via a plurality of bearings (03) so as to be able to rotate and onto which a sleeve can be drawn, there being provided between the shaft (01) and the shell (02) a lubricant chamber 08) extending in sections in the axial direction and a pressurized-gas chamber (06) extending in sections in the axial direction and having outlet openings (07) on the shell (02).
  2. Cylinder according to Claim 1, characterized in that a lubricant channel (13) and a pressurized-gas bore (04) are arranged to run in the shaft (01).
  3. Cylinder according to Claim 1, characterized in that the pressurized-gas chamber (06) and the lubricant chamber (08) are separated from each other by at least one sealing ring (09) on the lubricant side and a sealing ring (10) on the pressurized-gas side.
  4. Cylinder according to Claim 3, characterized in that these two sealing rings (09; 10) extend radially between the shaft (01) and the shell (02) and their sealing edges respectively face the adjacent lubricant chamber (08) and pressurized-gas chamber (06).
  5. Cylinder according to Claim 1, characterized in that the pressurized-gas chamber (06) can be supplied with pressurized gas via a pressurized-gas bore (04) running at least partly in the shaft (01).
  6. Cylinder according to Claim 2, characterized in that the pressurized-gas bore (04) opens at the end of the shaft (01).
  7. Cylinder according to Claim 5 or 6, characterized in that the pressurized-gas bore (04) is connected to the pressurized-gas chamber (06) via at least one supply bore (05) running radially or obliquely in the shaft (01).
  8. Cylinder according to Claim 1, characterized in that at least one lubricant channel (13) is provided, whose ends open in regions of the lubricant chamber (08) separated by at least one of the bearings (03).
  9. Cylinder according to Claim 8, characterized in that the lubricant channel (13) runs through the shaft (01) obliquely with respect to the axial direction of the cylinder.
  10. Cylinder according to Claim 9, characterized in that the lubricant channel (13) runs through the shaft (01) and, in the region of the crossing with the pressurized-gas bore (4), is sealed off with respect to the latter in a gas-tight manner.
  11. Cylinder according to Claim 10, characterized in that the lubricant channel (13) is formed as a pipe (14), which is inserted into a passage bore introduced into the shaft (01).
  12. Cylinder according to Claim 1, characterized in that a first oil deflector (11) is provided.
  13. Cylinder according to Claim 12, characterized in that the first oil deflector (11) is arranged close to the inner surface of the shell (02) and adjacent to a bearing (03) positioned in the lubricant chamber (08).
  14. Cylinder according to Claim 12, characterized in that this first oil deflector (11) is placed obliquely in such a way that, as the shell (02) rotates, lubricant peeled off its inner surface is accelerated axially in the direction of this bearing (3), in order to flow through this bearing (03).
  15. Cylinder according to Claim 12, characterized in that a second oil deflector (12) is provided.
  16. Cylinder according to Claim 15, characterized in that the second oil deflector (12) is arranged close to the inner surface of the shell (02) and adjacent to the sealing ring (09) on the lubricant side.
  17. Cylinder according to Claim 16, characterized in that, as seen in the axial direction of the cylinder, one end of the lubricant channel (13) opens into the lubricant chamber (08) close to the first oil deflector (11), and the other end close to the second oil deflector (12).
  18. Cylinder according to Claim 16 or 17, characterized in that the second oil deflector (12) is arranged between the bearing (03) through which lubricant flows and the sealing ring (09) on the lubricant side.
  19. Cylinder according to Claim 1, characterized in that lubricant chambers (08) are formed on the two outer sections of the cylinder and the pressurized-gas chamber (06) is formed in the central section of the cylinder.
  20. Cylinder according to Claim 1, characterized in that the bearings (03) are formed as rolling bearings (03), which are arranged in the region of the lubricant chamber (08).
  21. Cylinder according to Claim 3, characterized in that the sealing ring (09) on the lubricant side and the sealing ring (10) on the pressurized-gas side consist of different materials, which are matched to the medium respectively carried in the lubricant chamber (08) and pressurized-gas chamber (06) to be sealed off.
  22. Cylinder according to Claim 3, characterized in that, in relation to the overall length of the cylinder, the sealing ring (09) on the lubricant side and the sealing ring (10) on the pressurized-gas side are arranged very close to a bearing (03) extending between shaft (01) and shell (02).
  23. Cylinder according to Claim 3, characterized in that, between the sealing ring (09) on the lubricant side and the sealing ring (10) on the pressurized-gas side, a grease chamber for lubricating the sealing ring (10) on the pressurized-gas side is formed by means of an intermediate ring.
  24. Cylinder according to Claim 1, characterized in that an oil filling bore (16) is provided which, starting from an oil filling opening (17) that is accessible in the installed state, extends as far as the lubricant chamber (08).
  25. Cylinder according tc Claim 24, characterized in that the oil filling bore (16) runs through the shaft (01) obliquely with respect to the axial direction of the cylinder.
  26. Cylinder according to Claim 24 or 25, characterized in that the oil filling bore (16) simultaneously serves as a venting opening for the lubricant chamber (08).
  27. Cylinder according to Claim 24, 25 or 26, characterized in that a measuring rod can be inserted into the oil filling bore (16).
  28. Cylinder according to Claim 1, characterized in that the cylinder is constructed as a press roll.
  29. Cylinder according to Claim 1, characterized in that the cylinder is constructed as an impression cylinder.
  30. Cylinder according to Claim 1, characterized in that the sleeve has a printing form.
  31. Cylinder according tc Claim 1, characterized in that the cylinder is arranged in a printing press.
  32. Cylinder according tc Claim 1, characterized in that the cylinder is arranged in a gravure printing press.
EP05752566A 2004-06-25 2005-06-03 Cylinders for machines that process sheet-like material Not-in-force EP1758739B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004030702A DE102004030702B3 (en) 2004-06-25 2004-06-25 Cylinder for web-shaped material processing machines
PCT/EP2005/052557 WO2006000516A1 (en) 2004-06-25 2005-06-03 Cylinders for machines that process sheet-like material

Publications (2)

Publication Number Publication Date
EP1758739A1 EP1758739A1 (en) 2007-03-07
EP1758739B1 true EP1758739B1 (en) 2010-09-29

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Application Number Title Priority Date Filing Date
EP05752566A Not-in-force EP1758739B1 (en) 2004-06-25 2005-06-03 Cylinders for machines that process sheet-like material

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US (1) US20080254960A1 (en)
EP (1) EP1758739B1 (en)
CN (1) CN100491124C (en)
AT (1) ATE482824T1 (en)
DE (2) DE102004030702B3 (en)
WO (1) WO2006000516A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100553970C (en) * 2006-12-19 2009-10-28 陕西北人印刷机械有限责任公司 Cooling roller device
IT1390945B1 (en) * 2008-08-06 2011-10-27 Futura Spa ROLLER FOR THE TREATMENT OF NASTRIFORM CARTACEOUS MATERIAL
CN102653161A (en) * 2012-05-09 2012-09-05 中国人民银行印制科学技术研究所 Printing roller
CN104608472A (en) * 2015-02-14 2015-05-13 合肥誉联信息科技有限公司 Sealing device for jacking and rotating of printing plate cylinder

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE322471B (en) * 1966-04-28 1970-04-06 Skandinaviska Apparatind
US3420590A (en) * 1966-10-31 1969-01-07 Forano Ltd Dustproof bearing for idler roller
FI67675C (en) * 1980-09-04 1985-05-10 Frankenthal Ag Albert CYLINDER FOR BANFORM MATERIAL BEARBETANDE MASKINER
US4437695A (en) * 1982-01-08 1984-03-20 Best Lock Corporation Knob retainer blocker mechanism
DE3439090A1 (en) * 1984-10-25 1986-04-30 Albert-Frankenthal Ag, 6710 Frankenthal CYLINDERS FOR RAILWAY MATERIAL MACHINERY
IT1248446B (en) * 1990-12-19 1995-01-19 Componenti Grafici Srl PRESSURE ROLLER FOR PRINTING MACHINE, WITH AIR CONDITIONING AND LUBRICATION SYSTEM
SE501758C2 (en) * 1993-09-07 1995-05-08 Scandrive Hallstahammar Ab Roll, especially tear roll
US5484212A (en) * 1994-01-14 1996-01-16 Heidelberger Druckmaschinen Ag Method of lubricating printing cyclinder bearings
EP0741016A3 (en) * 1995-05-05 1997-09-24 Pretto De Escher Wyss Srl Impression roller
US5632203A (en) * 1995-06-14 1997-05-27 Quad Graphics, Inc. Anti-ghosting roller
DE19603651C2 (en) * 1996-02-01 2000-06-21 Voith Sulzer Papiermasch Gmbh roller
US5943955A (en) * 1997-08-29 1999-08-31 Goss Graphic Systems, Inc. Printing press having cantilevered self-driven cylinders
DE10023205C2 (en) * 2000-05-12 2003-07-17 Koenig & Bauer Ag Cylinder of a rotary printing press

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DE502005010309D1 (en) 2010-11-11
WO2006000516A1 (en) 2006-01-05
US20080254960A1 (en) 2008-10-16
DE102004030702B3 (en) 2006-02-09
EP1758739A1 (en) 2007-03-07
CN1878673A (en) 2006-12-13
CN100491124C (en) 2009-05-27
ATE482824T1 (en) 2010-10-15

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