EP0491112A1 - Impression cylinder for a printing machine with arrangements for oil conditioning and lubricating - Google Patents

Impression cylinder for a printing machine with arrangements for oil conditioning and lubricating Download PDF

Info

Publication number
EP0491112A1
EP0491112A1 EP91110849A EP91110849A EP0491112A1 EP 0491112 A1 EP0491112 A1 EP 0491112A1 EP 91110849 A EP91110849 A EP 91110849A EP 91110849 A EP91110849 A EP 91110849A EP 0491112 A1 EP0491112 A1 EP 0491112A1
Authority
EP
European Patent Office
Prior art keywords
oil
storage container
openings
cylinder
pressure 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.)
Granted
Application number
EP91110849A
Other languages
German (de)
French (fr)
Other versions
EP0491112B1 (en
Inventor
Bruno Molinatto
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.)
Componenti Grafici SRL
Original Assignee
Componenti Grafici SRL
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 Componenti Grafici SRL filed Critical Componenti Grafici SRL
Publication of EP0491112A1 publication Critical patent/EP0491112A1/en
Application granted granted Critical
Publication of EP0491112B1 publication Critical patent/EP0491112B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B41F13/22—Means for cooling or heating forme or impression cylinders

Definitions

  • the above invention relates to a pressure cylinder for a printing press with devices for air conditioning and lubricating the cylinder by means of oil.
  • Deformable pressure cylinders are used in printing machines, i.e. Cylinder with changeable curve, which essentially consist of a jacket, which is provided on the outside with a rubber coating and, with the interposition of ball bearings, is supported by a central support shaft.
  • the support shaft is mounted in the side columns of the printing machine.
  • Pressure cylinders of this type which are used, for example, to guide the paper tape precisely or to press the paper tape onto the printing cylinder, rotate at a considerable speed. For this reason it is necessary for the pressure cylinders to work safely that the ball bearings are properly lubricated. It has It has also proven to be advantageous if the amount of heat generated in the pressure cylinders is continuously removed from the cylinder and from the rotating bearings.
  • the object of the above invention is to avoid these disadvantages and to propose simple means with which a safe, continuous, faultless lubrication by means of oil, the support bearing of the pressure cylinder becomes possible, and that it is still possible to achieve a continuous and automatic air conditioning of the pressure cylinder in order to give the pressure cylinder a constant temperature over its entire extent.
  • the object of the invention is achieved in that the receiving shaft of the flexible cylinder jacket is hollow and has an inlet or outlet for a coolant at its ends, that the receiving shaft penetrates an oil storage chamber, and the oil storage container rotatably receives the elastic jacket of the cylinder via ball bearings , and the storage container has on its underside openings for the discharge of the oil and on its top openings for the supply of the oil, and these supply openings work together with scraper plates which extend in the radial direction up to the immediate vicinity of the inner circumference of the elastic cylinder jacket.
  • Dosing tubes are provided at the base of the storage container, in the vicinity of the ball bearings, of which one end projects into the oil reservoir in the container and the other end is directed towards the body of the associated ball bearing.
  • Oil having such characteristics has the advantage that the oil located in the cylinder-shaped storage container is in constant contact with the centrally arranged support shaft, as a result of which the oil quantity is continuously cooled; there is constantly cooled oil available inside the pressure cylinder.
  • the cooled oil is continuously supplied to the inner surface of the flexible cylinder jacket, which means that heat is continuously extracted from this jacket by the amount of oil present.
  • lubrication tubes Thanks to the provision of lubrication tubes, a continuous and precisely metered, safe lubrication of each ball bearing is achieved.
  • the beak-like lubrication or dosing tubes take up oil through an opening in the interior of the oil storage container in order to deliver this to the ball bearings in the form of small drops on the opposite side of the tube.
  • the bores for the outlet of the oil and the bores which cooperate with the scraper plates are arranged on a common vertical axis with particular advantage.
  • the pressure cylinder 1 consists of a centrally arranged receiving shaft 2.
  • This shaft has a line 3 for the supply of a certain amount of oil.
  • the shaft has a through bore 4, which makes it possible to supply a coolant from one side of the shaft, which coolant flows off on the other side of the shaft.
  • the shaft 2 also has lines 5 which make it possible to supply compressed air for two inflatable bellows 6 and 7.
  • the bellows 6 are provided for the deformation of the pressure cylinder 1.
  • the shaft 2 is surrounded by a cylindrical storage container 8.
  • Inflatable bellows 6 and 7 are arranged in a known manner between the bottom of the storage container 8 and the supporting shaft 2.
  • flanges 9 and 10 are arranged in a known manner. These flanges store, with the interposition of ball bearings 11 and 12, the ends of the elastically deformable cylinder jacket, which consists of a sleeve 14 made of spring steel or similar, elastic material and with a coating 15 soft-elastic material, eg rubber is coated.
  • the jacket 13 rests on further ball bearings 16, 17, 18 and 19.
  • the inner ring of the bearing is received by the cylindrical body of the storage container 8.
  • the storage container 8 is filled with oil 20 via the line 3, so that the storage container 8 is filled approximately to the filling level indicated by a chain line 21. This covers more than half the circumference of the central shaft 2 with oil.
  • Calibrated bores 22, 23, 24, 25, 26, 27, 28, 29, 30 and 31 are arranged on the underside, in the wall of the storage container 8.
  • the specified number of calibrated holes is not binding and can also be enlarged if necessary.
  • the container wall 8 On the upper side, the container wall 8 has openings 32, 33, 34, 35 and 36.
  • Scraper plates 37, 38, 39, 40 and 41 are assigned to these openings 32 to 36 in the manner of a scraper blade.
  • the scraper plates protrude radially from the cylindrical storage container 8.
  • the scraper plates protrude radially outwards and protrude in the immediate vicinity of the inner wall 42 of the casing 14, which is made of spring steel sheet, for example.
  • the essential mechanical components that have been described so far can also be seen in the drawing of FIG. 2.
  • the calibrated bores 22-31 and the openings 32-36 are advantageously arranged on a common vertical axis.
  • the beak-like lubrication tubes can have different shapes and can alternatively be used as required.
  • the lubrication tube 43 consists of an angularly bent tube which takes one end of oil from the oil reservoir 20 and doses the amount of oil removed via the other end of the tube to a bore 44 which penetrates both the bottom of the reservoir 8 and the inner race of the ball bearing 18 .
  • the beak-like tube 42 absorbs oil through the opening protruding into the oil reservoir 20 and, via the beak 43, the oil removed is fed in the form of metered droplets to the space between the two races of the ball bearing 18.
  • the cylinder 14 made of metal has an outer casing 15 made of rubber.
  • the oil film thus formed can move freely up to the doctor blades 37. These penetrate into the rotating oil film, represent an obstacle to it and peel the oil film from the inner surface 42 due to the scraping action which occurs. It is not necessary for this that the scraper blades 37 come into contact with the inner surface of the rotating pressure cylinder 1.
  • the detached, heated amount of oil is again conveyed through the associated bore 32 into the interior of the cylindrical storage container 8 by the scraper blades 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

An impression cylinder for a printing machine with arrangements for oil conditioning and lubricating, wherein the receiving shaft (2) of a flexible cylinder shell (13) is of hollow (4) construction and has at its ends an inlet and an outlet for a cooling liquid. Furthermore, the receiving shaft penetrates a chamber (8, 20) which forms an oil supply container, the supply container receiving the flexible cylinder shell (13) in a rotatable manner with interposition of ball bearings (16, 17, 18, 19), and said supply container (20) having openings (22-31) on its underside for draining the oil and feed openings (32-36) on its upper side which cooperate with scraper plates (37-41) which extend in the radial direction into the immediate vicinity of the inside circumference (42) of the flexible cylinder shell. <IMAGE>

Description

Die vorstehende Erfindung betrifft einen Anpresszylinder fuer eine Druckmaschine mit Einrichtungen zum Klimatisieren und Schmieren des Zylinders mittels Oel.The above invention relates to a pressure cylinder for a printing press with devices for air conditioning and lubricating the cylinder by means of oil.

In Druckmaschinen werden verformbare Anspresszylinder eingesetzt, d.h. Zylinder mit veraenderbarem Bogenverlauf, die im wesentlichen aus einem Mantel bestehen, der an seiner Aussenseite mit einer Gummibeschichtung versehen ist und, unter Zwischenschaltung von Kugellagern, von einer zentralen Stuetzwelle getragen wird. Die Stuetzwelle ist in den Seitenstaendern der Druckmaschine gelagert.Deformable pressure cylinders are used in printing machines, i.e. Cylinder with changeable curve, which essentially consist of a jacket, which is provided on the outside with a rubber coating and, with the interposition of ball bearings, is supported by a central support shaft. The support shaft is mounted in the side columns of the printing machine.

Anpresszylinder dieser Art, die z.B. zur genauen Fuehrung des Papierbandes oder zum Anpressen des Papierbandes an den Druckzylinder verwendet werden, rotieren mit erheblicher Drehzahl. Aus diesem Grunde ist es fuer das sichere Arbeiten der Anpresszylinder erforderlich, eine einwandfreie Schmierung der Kugellager vorzusehen. Es hat sich auch als vorteilhaft erwiesen, wenn die in den Anpresszylindern erzeugte Waermemenge fortlaufend vom Zylinder sowie von den sich drehenden Lagern abgefoerdert werden.Pressure cylinders of this type, which are used, for example, to guide the paper tape precisely or to press the paper tape onto the printing cylinder, rotate at a considerable speed. For this reason it is necessary for the pressure cylinders to work safely that the ball bearings are properly lubricated. It has It has also proven to be advantageous if the amount of heat generated in the pressure cylinders is continuously removed from the cylinder and from the rotating bearings.

In bekannten Anpresszylindern werden die Kugellager meistens ueber eine Fettfuellung geschmiert, Schmierung, die nicht problemlos ist. In den bekannten Anpresszylindern waren bisher keine Mittel vorgesehen, die es ermoeglichten, den Anpresszylinder waermetechnisch zu klimatisieren, d.h. es sind keine Mittel bekannt geworden, mit denen tatsaechlich die entstehende Waerme aus dem Anpresszylinder, besonders von den Kugellagern des Zylinders, d.h. in Punkten groesster thermischer Belastung des Zylinders, abfuehrbar waere. Dies fuehrt zu erheblichen, lokalen Erwaermungen des Anpresszylinders, besonders in der Naehe der Stuetzlager. Diese Waermeanhaeufung fuehrt wiederum zu einer groesseren Waermedehnung des Zylinderaussenmantels, was zu einer unerwuenschten Durchmesserzunahme des Anpresszylinders, besonders in der Naehe der Stuetzlager fuehrt, was Massabweichungen mit sich bringt, die wiederum Druckfehler hervorrufen.In known pressure cylinders, the ball bearings are mostly lubricated with a grease filling, lubrication that is not easy. In the known pressure cylinders, no means were previously provided which made it possible to air-condition the pressure cylinder thermally, i.e. No means have become known with which the heat actually generated from the pressure cylinder, in particular from the ball bearings of the cylinder, i.e. in points of greatest thermal load on the cylinder, would be removable. This leads to considerable local heating of the pressure cylinder, especially near the support bearings. This heat build-up in turn leads to a greater thermal expansion of the cylinder outer jacket, which leads to an undesirable increase in the diameter of the pressure cylinder, especially in the vicinity of the support bearings, which leads to dimensional deviations, which in turn cause printing errors.

Aufgabe der vorstehenden Erfindung ist es, diese Nachteile zu vermeiden und einfache Mittel vorzuschlagen, mit denen eine sichere, kontinuierliche, einwandfreie Schmierung mittels Oel der Stuetzlager des Anpresszylinders moeglich wird, und dass es weiterhin ermoeglicht wird, eine kontinuierliche und automatische Klimatisierung des Anpresszylinders zu erzielen, um dem Anpresszylinder gleichbleibende Temperatur ueber seine gesamte Erstreckung zu verleihen.The object of the above invention is to avoid these disadvantages and to propose simple means with which a safe, continuous, faultless lubrication by means of oil, the support bearing of the pressure cylinder becomes possible, and that it is still possible to achieve a continuous and automatic air conditioning of the pressure cylinder in order to give the pressure cylinder a constant temperature over its entire extent.

Die erfindungsgemaesse Aufgabe wird dadurch geloest, dass die Aufnahmewelle des flexiblen Zylindermantels hohl ausgebildet ist und an ihren Enden einen Zulauf bzw. einen Auslauf fuer ein Kuehlmittel besitzt, dass die Aufnahmewelle eine Oelvorratskammer durchdringt, und der Oelvorratsbehaelter ueber Kugellager den elastischen Mantel des Zylinders drehbar aufnimmt, und der Vorratsbehaelter an seiner Unterseite Oeffnungen fuer den Auslauf des Oeles und an seiner Oberseite Oeffnungen fuer die Zufuhr des Oeles aufweist, und diese Zufuhroeffnungen mit Schaberblechen zusammenarbeiten, die sich in Radialrichtung bis in unmittelbare Naehe des Innenumfanges des elastischen Zylindermantels erstrecken.The object of the invention is achieved in that the receiving shaft of the flexible cylinder jacket is hollow and has an inlet or outlet for a coolant at its ends, that the receiving shaft penetrates an oil storage chamber, and the oil storage container rotatably receives the elastic jacket of the cylinder via ball bearings , and the storage container has on its underside openings for the discharge of the oil and on its top openings for the supply of the oil, and these supply openings work together with scraper plates which extend in the radial direction up to the immediate vicinity of the inner circumference of the elastic cylinder jacket.

Mit besonderem Vorteil sind am Grund des Vorratsbehaelters, in der Naehe der Kugellager, Dosierroehrchen vorgesehen, von denen je ein Ende in den Oelvorrat im Behaelter ragt, und das andere Ende auf den Koerper des zugeordneten Kugellagers gerichtet ist.Dosing tubes are provided at the base of the storage container, in the vicinity of the ball bearings, of which one end projects into the oil reservoir in the container and the other end is directed towards the body of the associated ball bearing.

Mit Einrichtungen zum Klimatisieren und Schmieren mittels Oel, die solche Merkmale aufweisen, wird der Vorteil erzielt, dass das im zylinderfoermig ausgebildeten Vorratsbehaelter befindliche Oel staendig mit der zentral angeordneten Tragewelle in Kontakt steht, wodurch die Oelmenge andauernd gekuehlt wird; es steht staendig gekuehltes Oel im Inneren des Anpresszylinders zur Verfuegung.With facilities for air conditioning and lubrication Oil having such characteristics has the advantage that the oil located in the cylinder-shaped storage container is in constant contact with the centrally arranged support shaft, as a result of which the oil quantity is continuously cooled; there is constantly cooled oil available inside the pressure cylinder.

Dank der Vorsehung kalibrierter Oeffnungen am Grund des Oelvorratsbehaelters wird das gekuehlte Oel andauernd der Innenflaeche des flexiblen Zylindermantels zugefuehrt, dadurch wird von diesem Mantel durch die vorhandene Oelmenge kontinuerlich Waerme abgezogen.Thanks to the provision of calibrated openings at the bottom of the oil storage container, the cooled oil is continuously supplied to the inner surface of the flexible cylinder jacket, which means that heat is continuously extracted from this jacket by the amount of oil present.

Waehrend der Drehbewegung des Zylindermantels legt sich, aufgrund der auftretenden Zentrifugalkraefte die Oelmenge schleierartig an der inneren Flaeche des Zylindermantels ab. Von der inneren Zylinderflaeche wird die Oelschicht durch die Schaberbleche, die an der Oberseite des zylindrisch ausgebildeten Vorratsbehaelters angeordnet sind, abgeschabt. Ueber die in der Naehe der Schaberklingen vorgesehenen Bohrungen wird das Oel erneut in das Innere des Oelvorratsbehaelters gefoerdert, um erneut ueber die zentrale und gekuehlte Welle zu fliessen.During the rotation of the cylinder jacket, due to the centrifugal forces that occur, the amount of oil deposits on the inner surface of the cylinder jacket like a fog. The oil layer is scraped off from the inner cylinder surface by the scraper plates which are arranged on the top of the cylindrical storage container. The oil is again conveyed into the interior of the oil reservoir via the holes provided near the doctor blades in order to flow again over the central and cooled shaft.

Somit wird ein staendiger Waermeaustausch erzielt; von der Innenflaeche des Zylindermantels wird Waerme abgefoerdert, und dies fuehrt zu einer Vereinheitlichung der Temperatur auf der Aussenflaeche des mit Gummi ummantelten Zylinders. Es werden unerwuenschte, unregelmaessige Waermedehnungen, sowie Formabweichungen auf der Aussenflaeche des Anpresszylinders vermieden. Alle mechanischen Bauteile des Anpresszylinders werden automatisch auf einer konstanten Temperatur gehalten.A constant exchange of heat is thus achieved; heat is removed from the inner surface of the cylinder jacket, and this leads to a standardization of the temperature on the outer surface of the rubber-coated cylinder. Unwanted, irregular thermal expansion, as well as shape deviations on the outer surface of the pressure cylinder are avoided. All mechanical components of the pressure cylinder are automatically kept at a constant temperature.

Dank der Vorsehung von Schmierroehrchen wird eine kontinuierliche und genau dosierte, sichere Schmierung eines jeden Kugellagers erreicht. Die schnabelartig ausgebildeten Schmier- oder Dosierroehrchen, nehmen ueber eine Oeffnung im Inneren des Oelvorratsbehaelters Oel auf, um dieses auf der gegenueberliegenden Roehrchenseite in Form kleiner Tropfen an die Kugellagern abzugeben.Thanks to the provision of lubrication tubes, a continuous and precisely metered, safe lubrication of each ball bearing is achieved. The beak-like lubrication or dosing tubes take up oil through an opening in the interior of the oil storage container in order to deliver this to the ball bearings in the form of small drops on the opposite side of the tube.

Mit besonderem Vorteil sind die Bohrungen fuer den Auslauf des Oel, sowie die mit den Schaberblechen zusammenarbeitenden Bohrungen auf einer gemeinsamen Vertikalachse angeordnet.The bores for the outlet of the oil and the bores which cooperate with the scraper plates are arranged on a common vertical axis with particular advantage.

Weitere Vorteile der Erfindung koennen der nun folgenden Beschreibung, den Zeichnungen und den Unteranspruechen entnommen werden.Further advantages of the invention can be found in the following description, the drawings and the subclaims.

Der Gegenstand der vorstehenden Erfindung wird nun genauer anhand eines Ausfuehrungsbeispieles beschrieben und in den beigefuegten Zeichnungen dargestellt.The subject matter of the above invention will now be described in more detail with reference to an exemplary embodiment and shown in the accompanying drawings.

Es zeigen:

  • Fig. 1 einen Laengschnitt durch den erfindungsgemaess ausgebildeten Anpresszylinder;
  • Fig. 2 den Anpresszylinder im Querschnitt entlang der Linie II-II der Fig. 1; und
  • Fig. 3 ein Detail eines Kugellagers mit dem zugeordneten Schmierroehrchen in vergroessertem Massstab.
Show it:
  • Fig. 1 shows a longitudinal section through the inventive trained pressure cylinder;
  • Figure 2 shows the pressure cylinder in cross section along the line II-II of Fig. 1. and
  • Fig. 3 shows a detail of a ball bearing with the associated lubrication tube on an enlarged scale.

Wie der Fig. 1 zu entnehmen ist, besteht der Anspresszylinder 1 aus einer mittig angeordneten Aufnahmewelle 2. Diese Welle weist eine Leitung 3 fuer die Zufuhr einer bestimmten Oelmenge auf. Ferner weist die Welle eine Durchgangsbohrung 4 auf, die es ermoeglicht, von einer Seite der Welle ein Kuehlmittel zuzufuehren, das auf der anderen Seite der Welle abfliesst. Die Welle 2 weist ferner Leitungen 5 auf, die es ermoeglichen, Pressluft fuer zwei aufblasbare Baelge 6 und 7 zuzufuehren. Die Baelge 6 sind fuer die Verformung des Anpresszylinders 1 vorgesehen.As can be seen from FIG. 1, the pressure cylinder 1 consists of a centrally arranged receiving shaft 2. This shaft has a line 3 for the supply of a certain amount of oil. Furthermore, the shaft has a through bore 4, which makes it possible to supply a coolant from one side of the shaft, which coolant flows off on the other side of the shaft. The shaft 2 also has lines 5 which make it possible to supply compressed air for two inflatable bellows 6 and 7. The bellows 6 are provided for the deformation of the pressure cylinder 1.

Die Welle 2 wird von einem zylindrischen Vorratsbehaelter 8 umgeben. Zwischen dem Boden des Vorratsbehaelters 8 und der Tragewelle 2 sind in bekannter Weise aufblasbare Baelge 6 und 7 angeordnet.The shaft 2 is surrounded by a cylindrical storage container 8. Inflatable bellows 6 and 7 are arranged in a known manner between the bottom of the storage container 8 and the supporting shaft 2.

Am Ende der Welle 2 sind in bekannter Weise Flansche 9 und 10 angeordnet. Diese Flansche lagern, unter Zwischenschaltung von Kugellagern 11 und 12, die Enden des elastisch verformbaren Zylindermantels, der aus einer Huelse 14 aus Federstahl oder aehnlichem, elastischem Material besteht und mit einer Beschichtung 15 aus weich-elastischem Material, z.B. Gummi beschichtet ist.At the end of the shaft 2 flanges 9 and 10 are arranged in a known manner. These flanges store, with the interposition of ball bearings 11 and 12, the ends of the elastically deformable cylinder jacket, which consists of a sleeve 14 made of spring steel or similar, elastic material and with a coating 15 soft-elastic material, eg rubber is coated.

In Laengsrichtung des Vorratsbehaelters 8 liegt der Mantel 13 auf weiteren Kugellagern 16, 17, 18 und 19 auf. Der Innenring der Lager wird vom zylindrischen Koerper des Vorratsbehaelters 8 aufgenommen.In the longitudinal direction of the storage container 8, the jacket 13 rests on further ball bearings 16, 17, 18 and 19. The inner ring of the bearing is received by the cylindrical body of the storage container 8.

Der Vorratsbehaelter 8 wird ueber die Leitung 3 mit Oel 20 gefuellt, so dass der Vorratsbehaelter 8 ungefaehr bis zu der mit einer Strichpunktlinie 21 angezeigten Fuellhoehe gefuellt wird. Damit wird mehr als die Haelfte des Umfanges der zentralen Welle 2 vom Oel abgedeckt.The storage container 8 is filled with oil 20 via the line 3, so that the storage container 8 is filled approximately to the filling level indicated by a chain line 21. This covers more than half the circumference of the central shaft 2 with oil.

An der Unterseite, in der Wand des Vorratsbehaelters 8, sind kalibrierte Bohrungen 22, 23, 24, 25, 26, 27, 28, 29, 30 und 31 angeordnet. Die angegebene Anzahl der kalibrierten Bohrungen ist nicht bindend und kann im Bedarfsfalle auch vergroessert werden.Calibrated bores 22, 23, 24, 25, 26, 27, 28, 29, 30 and 31 are arranged on the underside, in the wall of the storage container 8. The specified number of calibrated holes is not binding and can also be enlarged if necessary.

An der Oberseite weist die Behaelterwand 8 Oeffnungen 32, 33, 34, 35 und 36 auf. Diesen Oeffnungen 32 bis 36 sind Schaberbleche 37, 38, 39, 40 und 41 nach Art einer Schaberklinge zugeordnet. Die Schaberbleche stehen radial vom zylinderfoermigen Vorratsbehaelter 8 ab. Die Schaberbleche stehen radial nach aussen ab und ragen bis in unmittelbare Naehe der Innenwand 42 des Mantels 14, der z.B. aus Federstahlblech hergestellt ist. Die wesentlichen, mechanischen Bauteile, die bisher beschrieben wurden, koennen auch der Zeichnung nach Fig. 2 entnommen werden.On the upper side, the container wall 8 has openings 32, 33, 34, 35 and 36. Scraper plates 37, 38, 39, 40 and 41 are assigned to these openings 32 to 36 in the manner of a scraper blade. The scraper plates protrude radially from the cylindrical storage container 8. The scraper plates protrude radially outwards and protrude in the immediate vicinity of the inner wall 42 of the casing 14, which is made of spring steel sheet, for example. The essential mechanical components that have been described so far can also be seen in the drawing of FIG. 2.

In vorteilhafter Weise sind die kalibrierten Bohrungen 22 - 31 und die Oeffnungen 32 - 36 auf einer gemeinsamen vertikalen Achse angeordnet.The calibrated bores 22-31 and the openings 32-36 are advantageously arranged on a common vertical axis.

Der Fig. 3 koennen im Detail die schnabelartigen Schmierroehrchen 43 bzw. 42 entnommen werden, die z.B. einem Kugellager 18 zugeordnet sind und fuer eine staendige Schmierung des Lagers sorgen.3 can be seen in detail the beak-like lubrication tubes 43 and 42, which e.g. are associated with a ball bearing 18 and ensure constant lubrication of the bearing.

Die schnabelartig ausgefuehrten Schmierroehrchen koennen in ihrer Form unterschiedlich ausgebildet sein und alternativ je nach Bedarf Verwendung finden.The beak-like lubrication tubes can have different shapes and can alternatively be used as required.

Das Schmierroehrchen 43 besteht aus einem winklig abgebogenem Roehrchen, das mit einem Ende Oel aus dem Oelvorrat 20 entnimmt und die entnommene Oelmenge dosiert ueber das andere Roehrchenende einer Bohrung 44 zufuehrt, die sowohl den Boden des Vorratsbehaelters 8 als auch den inneren Laufring des Kugellagers 18 durchdringt.The lubrication tube 43 consists of an angularly bent tube which takes one end of oil from the oil reservoir 20 and doses the amount of oil removed via the other end of the tube to a bore 44 which penetrates both the bottom of the reservoir 8 and the inner race of the ball bearing 18 .

Das schnabelartige Roehrchen 42 nimmt hingegen Oel ueber die in den Oelvorrat 20 ragende Oeffnung auf und, ueber den Schnabel 43 wird das entnommene Oel in Form von dosierten Troepfchen dem Zwischenraum zwischen den zwei Laufringen des Kugellagers 18 zugefuehrt.The beak-like tube 42, on the other hand, absorbs oil through the opening protruding into the oil reservoir 20 and, via the beak 43, the oil removed is fed in the form of metered droplets to the space between the two races of the ball bearing 18.

Die Arbeitsweise der Klimatisier- und Schmiereinrichtung wird genauer anhand der Fig. 2 beschrieben.The operation of the air conditioning and lubrication device is described in more detail with reference to FIG. 2.

Wenn der Mantel 13, 14 und 15 des Anpresszylinders 1 in eine Drehbewegung gemaess Pfeil (f) versetzt wird, so wird das Oel, das ueber die kalibrierten Bohrungen 22 - 31 auf die Innenflaeche 42 des elastischen Mantels 14 (aufgrund sich einstellender Zentrifugalkraefte) sofort als duenner Schleier auf die Wand 42 aufgetragen. Dieser aus gekuehltem Oel bestehende Schleier nimmt die sich im elastischen Mantel 13 des Anpresszylinders 1 angesammelte Waerme auf. Der Zylinder 14 aus Metall weist eine aeussere Ummantelung 15 aus Gummi auf.If the jacket 13, 14 and 15 of the pressure cylinder 1 is rotated according to arrow (f), then the oil, which is applied via the calibrated bores 22 - 31 to the inner surface 42 of the elastic jacket 14 (due to the centrifugal forces that arise) immediately as a thin veil on the wall 42. This veil, consisting of cooled oil, absorbs the heat accumulated in the elastic jacket 13 of the pressure cylinder 1. The cylinder 14 made of metal has an outer casing 15 made of rubber.

Der so gebildete Oelfilm kann sich unbehindert bis zu den Schaberklingen 37 bewegen. Diese dringen in den rotierenden Oelfilm ein, stellen ein Hindernis fuer diesen dar und schaelen den Oelfilm durch die eintretende Schaberwirkung von der Innenflaeche 42 ab. Dazu ist es nicht notwendig, dass die Schaberklingen 37 mit der Innenflaeche des rotierenden Anpresszylinders 1 in Beruehrung treten. Durch die Schaberklingen 37 wird die abgeloeste, erwaermte Oelmenge ueber die zugeordnete Bohrung 32 erneut in das Innere des zylindrischen Vorratsbehaelters 8 gefoerdert.The oil film thus formed can move freely up to the doctor blades 37. These penetrate into the rotating oil film, represent an obstacle to it and peel the oil film from the inner surface 42 due to the scraping action which occurs. It is not necessary for this that the scraper blades 37 come into contact with the inner surface of the rotating pressure cylinder 1. The detached, heated amount of oil is again conveyed through the associated bore 32 into the interior of the cylindrical storage container 8 by the scraper blades 37.

Waehrend des Niederrieselns des von der Wand 42 der elastischen Metallhuelse 14 abgeloesten Oels, umstroemt dieses die Oberseite der zentralen, gekuehlten Welle 2, um sofort abgekuehlt zu werden. Der dem Oel entzogene Waermegehalt wird ueber die Kuehlfluessigkeit, die durch die Bohrung 4 der Welle fliesst, abgefoerdert.During the trickling down of the oil detached from the wall 42 of the elastic metal sleeve 14, the oil flows around the top of the central, cooled shaft 2 in order to be cooled immediately. The heat content extracted from the oil is removed via the cooling liquid flowing through the bore 4 of the shaft.

Claims (8)

Anpresszylinder fuer eine Druckmaschine, dadurch gekennzeichnet , dass die Aufnahmewelle (2) des flexibel ausgebildeten Zylindermantels (13) hohl (4) ausgebildet ist und an ihren Enden einen Zulauf bzw. einen Ablauf fuer ein Kuehlmittel besitzt, dass die Aufnahmewelle (12) eine Oelvorratskammer (8, 20) durchdringt, und die Oelvorratskammer, unter Zwischenschaltung von Kugellagern (16, 17, 18, 19), drehbar einen elastischen Zylindermantel (13) aufnimmt, und dass der Oelvorratsbehaelter (20) an seiner Unterseite Oeffnungen (22 - 31) fuer den Auslauf des Oels und an seiner Oberseite Oeffnungen (32 - 36) fuer die Zufuhr des Oels aufweist, und die Zufuhroeffnungen mit Schaberblechen (37 - 41) zusammenarbeiten, die sich in Radialrichtung bis in unmittelbare Naehe des inneren Umfangs (42) des elastischen Zylindermantels (13) erstrecken.Pressure cylinder for a printing machine, characterized in that the receiving shaft (2) of the flexibly designed cylinder jacket (13) is hollow (4) and has an inlet or outlet for a coolant at its ends, and the receiving shaft (12) has an oil storage chamber (8, 20), and the oil storage chamber, with the interposition of ball bearings (16, 17, 18, 19), rotatably receives an elastic cylinder jacket (13), and that the oil storage container (20) has openings (22 - 31) on its underside. has openings (32 - 36) for the supply of the oil, and the supply openings work together with scraper plates (37 - 41) which extend in the radial direction up to the immediate vicinity of the inner circumference (42) of the elastic Extend cylinder jacket (13). Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass am Grund des Oelvorratsbehaelters (8, 20) in der Naehe der Kugellager (16, 19) Oeldosiereinrichtungen (42, 43, 44) vorgesehen sind, die mit einem Ende (42, 43) in den Oelvorrat (20) des Oelvorratsbehaelters (8) muenden und mit dem anderen Ende auf das zu schmierende Kugellager (16 - 19) gerichtet sind.Pressure cylinder according to claim 1, characterized in that at the bottom of the oil storage container (8, 20) near the ball bearings (16, 19) oil metering devices (42, 43, 44) are provided, which have one end (42, 43) in the oil supply (20) of the oil storage container (8) and the other end are aimed at the ball bearing (16 - 19) to be lubricated. Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass der Oelvorratsbehaelter (8 -20) als Zylindermantel mit Kreisquerschnitt ausgebildet ist und den Innenring der Kugellager (16 - 19) aufnimmt, die den elastischen, aeusseren Zylindermantel (13) aufnehmen.Pressure cylinder, according to claim 1, characterized characterized in that the oil storage container (8-20) is designed as a cylinder jacket with a circular cross-section and receives the inner ring of the ball bearings (16-19) which receive the elastic, outer cylinder jacket (13). Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass die Oeffnungen (22 - 31) im Grund des Oelaufnahmebehaelters (8) als kalibrierte Bohrungen ausgebildet sind.Press cylinder, according to claim 1, characterized in that the openings (22 - 31) in the base of the oil receptacle (8) are designed as calibrated bores. Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass die Oeffnungen (22 - 31) im Boden des Oelvorratsbehaelters (8) sowie die mit Schaberblechen (37) zusammenarbeitenden Oeffnungen (32 - 36) auf der Vertikalachse der Aufnahmewelle (2) angeordnet sind.Press cylinder, according to claim 1, characterized in that the openings (22 - 31) in the bottom of the oil storage container (8) and the openings (32 - 36) cooperating with scraper plates (37) are arranged on the vertical axis of the receiving shaft (2). Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass die schnabelartig ausgebildeten Schmierroehrchen (42, 43, 44) aus einem abgewinkelten Roehrchen bestehen, von denen ein Ende in den Oelvorrat ragt, und das andere Ende mit einer Bohrung (44) wirkverbunden ist, die den Boden des Vorratsbehaelters (8) und den Innenring des zugeordneten Kugellagers (16 - 19) durchdringt.Pressure cylinder according to claim 1, characterized in that the beak-like lubrication tubes (42, 43, 44) consist of an angled tube, one end of which protrudes into the oil reservoir and the other end is operatively connected to a bore (44) which penetrates the bottom of the storage container (8) and the inner ring of the associated ball bearing (16-19). Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass das schnabelartig ausgebildete Roehrchen (43, 43, 44) abgewinkelt ausgebildet ist und ein Ende des Roehrchens (42) in den Oelvorrat (20) ragt, und das andere Ende des Roehrchens (44) auf den Freiraum zwischen den zwei Laufringes des entsprechenden Kugellagers (16 - 19) hin gerichtet ist.Pressure cylinder according to claim 1, characterized in that the beak-like tube (43, 43, 44) is angled and one end of the tube (42) projects into the oil reservoir (20), and the other end of the tube (44) is directed towards the space between the two races of the corresponding ball bearing (16-19). Anpresszylinder, nach Patentanspruch 1, dadurch gekennzeichnet , dass der im Vorratsbehaelter (8) vorhandene Oelvorrat (20) mehr als die Haelfte (21) des Wellenumfangs umspuelt.Pressure cylinder according to claim 1, characterized in that the oil supply (20) present in the storage container (8) flows around more than half (21) of the shaft circumference.
EP91110849A 1990-12-19 1991-07-01 Impression cylinder for a printing machine with arrangements for oil conditioning and lubricating Expired - Lifetime EP0491112B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT02241790A IT1248446B (en) 1990-12-19 1990-12-19 PRESSURE ROLLER FOR PRINTING MACHINE, WITH AIR CONDITIONING AND LUBRICATION SYSTEM
IT2241790 1990-12-19

Publications (2)

Publication Number Publication Date
EP0491112A1 true EP0491112A1 (en) 1992-06-24
EP0491112B1 EP0491112B1 (en) 1995-06-07

Family

ID=11196024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110849A Expired - Lifetime EP0491112B1 (en) 1990-12-19 1991-07-01 Impression cylinder for a printing machine with arrangements for oil conditioning and lubricating

Country Status (5)

Country Link
US (1) US5174206A (en)
EP (1) EP0491112B1 (en)
JP (1) JP3093404B2 (en)
DE (1) DE59105662D1 (en)
IT (1) IT1248446B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023205A1 (en) * 2000-05-12 2001-11-22 Koenig & Bauer Ag Cylinder for a rotary printing press has roller bearings between the rotating mantle and the static carrier with a setting unit at the bearing at the cylinder end to adjust the radial gap between the carrier and the mantle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535674A (en) * 1994-06-24 1996-07-16 Heidelberger Druckmaschinen Ag Distortion-reduced lithographic printing press
DE19502475C2 (en) * 1995-01-27 1998-07-30 Heidelberger Druckmasch Ag Method and device for duct temperature control in the inking unit of a printing press
US6209456B1 (en) 1996-03-13 2001-04-03 Heidelberger Druckmaschinen Ag Web- and sheet-fed printing unit using various ink types, particularly water-based inks
US5694848A (en) * 1996-03-13 1997-12-09 Heidelberger Druckmaschinen Ag Printing unit for water based inks
IT1301774B1 (en) * 1998-06-22 2000-07-07 Plantex S P A DEVICE FOR COOLING TEXTURED WIRES AND TEXTURING EQUIPMENT PROVIDED WITH THAT DEVICE.
JP4146548B2 (en) 1998-09-11 2008-09-10 松下電器産業株式会社 Battery voltage detection device
US6216761B1 (en) * 1999-03-19 2001-04-17 Linear Products, Inc. Free turning chilling wheel assembly
DE102004030702B3 (en) * 2004-06-25 2006-02-09 Koenig & Bauer Ag Cylinder for web-shaped material processing machines
ES2386932T3 (en) * 2009-07-13 2012-09-06 Texmag Gmbh Vertriebsgesellschaft Easy March Roller
EP3227042B1 (en) * 2014-12-04 2021-12-08 Bobst Mex Sa Tool chuck, unit for transforming a planar substrate, and operating method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179363A2 (en) * 1984-10-25 1986-04-30 Albert-Frankenthal AG Cylinder for web-processing machines
DE8914511U1 (en) * 1989-12-09 1990-02-08 Hanssmann, Erich, Dipl.-Ing., 6347 Angelburg, De

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593595A (en) * 1948-04-08 1952-04-22 Offen Bernard Apparatus for chilling webs
US3282332A (en) * 1963-10-30 1966-11-01 Du Pont Tow-transporting roll
US3308552A (en) * 1964-07-30 1967-03-14 Vern F Kaufman Freeze-drying apparatus
US3331434A (en) * 1965-06-29 1967-07-18 Nat Drying Machinery Co Heat transfer roll
US4176605A (en) * 1976-09-13 1979-12-04 Toyo Ink Manufacturing Co., Ltd. Lithographic printing process
GB1539129A (en) * 1977-04-26 1979-01-24 Kuesters E Roller
US4183298A (en) * 1977-12-23 1980-01-15 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Water cooled ink roller for printing presses
US4920881A (en) * 1988-05-02 1990-05-01 Webquip Corporation Method of cooling hot webs
FI892957A (en) * 1988-07-07 1990-01-08 Eduard Kuesters Maschinenfabrik/Gmbh & Co.Kg UPPVAERMNINGS- OCH AVKYLNINGSFOERFARANDE FOER EN UPPVAERMBAR VALS OCH MOTSVARANDE VALS.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179363A2 (en) * 1984-10-25 1986-04-30 Albert-Frankenthal AG Cylinder for web-processing machines
DE8914511U1 (en) * 1989-12-09 1990-02-08 Hanssmann, Erich, Dipl.-Ing., 6347 Angelburg, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023205A1 (en) * 2000-05-12 2001-11-22 Koenig & Bauer Ag Cylinder for a rotary printing press has roller bearings between the rotating mantle and the static carrier with a setting unit at the bearing at the cylinder end to adjust the radial gap between the carrier and the mantle
DE10023205C2 (en) * 2000-05-12 2003-07-17 Koenig & Bauer Ag Cylinder of a rotary printing press

Also Published As

Publication number Publication date
JPH0717014A (en) 1995-01-20
IT9022417A1 (en) 1992-06-19
IT9022417A0 (en) 1990-12-19
US5174206A (en) 1992-12-29
JP3093404B2 (en) 2000-10-03
DE59105662D1 (en) 1995-07-13
EP0491112B1 (en) 1995-06-07
IT1248446B (en) 1995-01-19

Similar Documents

Publication Publication Date Title
EP0428893B1 (en) Printing unit
EP0491112B1 (en) Impression cylinder for a printing machine with arrangements for oil conditioning and lubricating
DE1088769B (en) Lubricating device for the bearings of a shaft rotating in a housing
DE1461066A1 (en) Adjustable roller for roller pairs, preferably for paper machines
CH672666A5 (en)
EP1060881A1 (en) Device and method for lubricating and cooling a roller bearing
DE2420324A1 (en) Rolling mill idler hydrostatic bearing - is supported on pistons with oil temperature controlled by built-in heat exchanger
DE2437932C3 (en) Method and device for lubricating the rotating bar bearings in axial fans
DE1159901B (en) Device for fractional distillation under vacuum
DE3104872C2 (en) Device for the production of a glassy slag
DE19623652A1 (en) Deflection adjustment roller
DE595792C (en) Water-cooled hollow roller
AT311291B (en) Squeegee device for rotary stencil printing machines
DE19616198A1 (en) Offset printing machine damping unit
DE7902911U1 (en) ROLLER BEARING WITH AUTOMATIC RE-GREASING DEVICE
DE1012776B (en) Centrifugal oil cleaner, especially for the lubricating oil of internal combustion engines
EP0031415B1 (en) Shaft seal for distributing rollers in inking systems of printing machines
DE526987C (en) Lubricating device for slide bearings
DE3200165A1 (en) Stirrer
DE862987C (en) Ball or roller bearings
AT200003B (en) Roller press, in particular for pressing liquids out of products containing liquids
DE646395C (en) Splash lubrication for axle bearings, especially in rail vehicles
AT86703B (en) Lubricating device for bearings with a bearing shell.
DE961355C (en) Sensorless inking unit for printing machines
DE8414320U1 (en) Cooling or heating roller

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19920924

17Q First examination report despatched

Effective date: 19940224

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950607

Ref country code: FR

Effective date: 19950607

REF Corresponds to:

Ref document number: 59105662

Country of ref document: DE

Date of ref document: 19950713

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950907

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19950607

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: OFFICINE MECCANICHE GIOVANNI CERUTTI S.P.A.

Free format text: COMPONENTI GRAFICI S.R.L.#VIA MAZZINI 39#CANDIA LOMELLINA (PAVIA) (IT) -TRANSFER TO- OFFICINE MECCANICHE GIOVANNI CERUTTI S.P.A.#VIA ADAM, 66#15033 CASALE MONFERRATO (IT)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100428

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20101209

Year of fee payment: 20

Ref country code: DE

Payment date: 20101107

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59105662

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59105662

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110702