EP1918107B1 - Cleaning device for printing rollers - Google Patents

Cleaning device for printing rollers Download PDF

Info

Publication number
EP1918107B1
EP1918107B1 EP20070018071 EP07018071A EP1918107B1 EP 1918107 B1 EP1918107 B1 EP 1918107B1 EP 20070018071 EP20070018071 EP 20070018071 EP 07018071 A EP07018071 A EP 07018071A EP 1918107 B1 EP1918107 B1 EP 1918107B1
Authority
EP
European Patent Office
Prior art keywords
cleaning device
shaft
gear
drive
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20070018071
Other languages
German (de)
French (fr)
Other versions
EP1918107A3 (en
EP1918107A2 (en
Inventor
Hary Kosciesza
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.)
Technotrans SE
Original Assignee
Technotrans SE
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 Technotrans SE filed Critical Technotrans SE
Publication of EP1918107A2 publication Critical patent/EP1918107A2/en
Publication of EP1918107A3 publication Critical patent/EP1918107A3/en
Application granted granted Critical
Publication of EP1918107B1 publication Critical patent/EP1918107B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F35/00Cleaning arrangements or devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00Cleaning
    • B41P2235/10Cleaning characterised by the methods or devices
    • B41P2235/20Wiping devices
    • B41P2235/24Wiping devices using rolls of cleaning cloth
    • B41P2235/246Pressing the cleaning cloth against the cylinder

Definitions

  • the invention relates to a cleaning device for pressure rollers or cylinders by means of a cleaning cloth, which is pressed against the surface to be cleaned and transported from a supply shaft to a collecting shaft for dirty cleaning cloth, with a drive for rotating the collecting shaft comprising a drive cylinder whose piston rod is connected to a pivotable lever which cooperates with a freewheel, which transmits torque during the advancement of the piston, while decoupling the retraction of the piston.
  • a cleaning device of this kind is from the DE 10 2004 035 399.9 A1 the applicant known.
  • the cleaning cloth which is sprayed with water and / or a cleaning agent, pulled over an elastic strip, in particular rubber strip and pressed by this against the surface of the roller to be cleaned. After some contamination, the cleaning cloth is cyclically pulled from a supply shaft to a collecting shaft and wound up on this.
  • the cleaning device is located in an elongated housing with two end plates in which the two ends of the supply shaft and the collecting shaft are mounted. Also, the mentioned elastic strip extends from one end plate to the other.
  • an adjusting cylinder As a drive for rotating the winding shaft, an adjusting cylinder is described, the piston rod engages on an outer ring of a freewheel bearing so that the winding shaft is rotated during advancement of the piston rod in the winding direction, while the return stroke stops due to the freewheel effect.
  • the GB 2 277 056 A describes a device for cleaning cylinders of a printing machine comprising a cleaning cloth that is of a replaceable Unwinded supply roll and can be wound up on a dirty cloth roll. Described is reversible drive for advancing and partially rewinding the cleaning cloth.
  • the drive is an electronically controllable electric motor which drives a gear which is movably mounted so that it can be brought into engagement with either a gear which is connected to the supply roll, or with a toothed wheel which is connected to the dirty cloth roll.
  • a device which is designed according to this operating principle works satisfactorily per se.
  • the supply of cloth available on the supply shaft is limited so that the cleaning cloth has to be changed from time to time. This leads to business interruptions and thus to loss of time.
  • the use of the cleaning cloth is relatively uneconomical. While much dirt accumulates at the beginning of a cleaning process, the dirt load gradually decreases more and more, so that the cleaning cloth is possibly only slightly contaminated.
  • the invention has for its object to provide a space-saving and inexpensive to produce cleaning device with which the intervals in which the cleaning cloth must be changed, extended and the utilization of the cleaning cloth can be made more economical overall.
  • the freewheel is connected to a drive wheel and that the drive cylinder and the drive wheel are mounted on a pivotally mounted on the device housing holder, which is movable in its pivotal movement between a first position in which a drive connection of the drive wheel for There is a collecting shaft for dirty cleaning cloth, and a second position in which there is a drive connection to the supply shaft.
  • the cleaning cloth can therefore be pulled both from the supply shaft to the collecting shaft and vice versa from the collecting shaft back to Supply shaft.
  • the cleaning cloth which is only slightly soiled towards the end of a cleaning process, can therefore be used again for cleaning heavily soiled roll surfaces.
  • the drive wheel is a gear and on the collecting shaft and the supply shaft are also gears, with which the drive wheel can be alternately engaged. If the direction of rotation of the supply shaft in the return of the tape to be opposite to the direction of rotation of the collecting shaft in the forward, is located between the drive gear and the gear on one of the wool an idler gear.
  • the holder, on which the drive cylinder and the drive wheel are located, is preferably formed as a flat plate, which is mounted at one end of the cleaning device.
  • a drive for pivoting this plate is preferably a pivot cylinder, in particular air cylinder is provided, which is mounted fixed to the frame on the cleaning device, so that the pivotable plate can be pivoted by means of the pivot cylinder.
  • the swivel cylinder for the pivotable holder or plate at the end of a drive operation is in a blocking position, so that it can not be pushed back by the stroke of the drive cylinder. This danger could exist because the drive cylinder is much stronger than the swing cylinder of the pivoting plate.
  • a cam roller is otherwise provided, which is connected to a sensor for the winding thickness on the collecting shaft and rests against the other hand, the pivotable lever of the drive.
  • This cam roller serves to limit the stroke of the drive cylinder and to adapt the stroke of the drive cylinder to the diameter of the wound web on the collecting shaft, so that with each stroke an equal length piece of the cleaning cloth can be wound.
  • the cam roller which causes the stroke limit of the drive cylinder is rotated by the diameter sensor for the winding thickness on the collecting shaft and thus adjusted.
  • Fig. 1 In the upper area of the Fig. 1 is the geometric axis of a perpendicular to the plane wave marked, which is hidden in the drawing and which should be referred to here as supply shaft 10.
  • the supply shaft 10 serves to receive a supply roll of a clean cleaning cloth. This cleaning cloth is pulled in a manner not shown on an elastic strip and transferred step by step to a collecting shaft, which is also perpendicular to the plane in Fig. 1 is also represented by its geometric axis.
  • the collecting shaft 12 is located in the lower region of Fig. 1 ,
  • the two shafts 10 and 12 are mounted between two end plates 14, which support and limit the bar-shaped cleaning device on both sides.
  • a pivotable plate 22 is mounted, on which some of the in Fig. 1 and 2 shown elements are stored, as will be explained below.
  • the pivotable plate 22 is connected to a pivoting cylinder 24 in connection, the piston rod 26 is pivotally connected in an axis 28 with the pivotable plate 22.
  • a drive cylinder 30 is pivotally mounted in an axis 32.
  • the drive cylinder 30 has a piston rod 34 which is pivotally connected to a lever 36 via an axis 38.
  • the lever 36 in turn is connected to an outer ring of a freewheel, not shown, in connection, whose inner ring is connected to a gear 40 in connection, which is mounted in an axis 42 on said pivotable plate 22.
  • the freewheel causes 30 torque on the lever 36 and the freewheel on the gear 40 is transmitted during extension of the piston rod 34 of the drive cylinder, on the return stroke of the piston rod 34, however, there is no drive connection, so the gear stops.
  • a pivotable pawl 44 is otherwise mounted, which can engage in the gear 40 and lock them. This can prevent the drive running unintentionally.
  • the gear 40 may alternatively be engaged with the gear shaft 18 of the collecting shaft (forward drive) or with the gear 16 of the supply shaft (return transport).
  • the gear 46 is provided as an intermediate gear, which causes a reversal of direction.
  • connection between the piston rod 26 of the swivel cylinder 24 and the pivotable plate is shown here as being released.
  • the axis 28 of the piston rod 26 is identical to the axis 52 of the pivotable plate 22, or there is a connection via a coupling joint, as will be described later.
  • Fig. 1 shows the position in which the gear 40 is engaged with the gear 18 of the collecting shaft. In this position, the collecting shaft is rotated in the forward direction. It is the usual operation, in which the cleaning cloth is pulled from the supply shaft to the collecting shaft.
  • This value is important since it depends on the thickness of the roll how long a portion of the cleaning cloth is that is picked up by a certain rotation of the winding shaft.
  • the angle of rotation traveled by the winding shaft 12 at each stroke of the drive cylinder 30 depends on the length of this stroke.
  • the stroke length of the piston rod 34 tends to be set the shorter the thicker the winding on the winding shaft.
  • the cam roller 56 forms a stop for the pivoting of the lever 36 and thus for the stroke of the cylinder 30th
  • Fig. 3 is an enlarged section of Fig. 1 and shows the pivotable plate 22 with the lever 36 and the gear 40 and the gear 18 on the collecting shaft. In this position, there is a risk that the much stronger drive cylinder 30, the relatively weak pivot cylinder 24 of the pivotable plate 22 penetratedrlindt so that it comes, for example, to an undesirable pivoting of the pivotable plate 22 by the drive cylinder 30.
  • Fig. 3 shows therefore a joint which connects the piston rod 26 with the pivotable plate 22 and is designated 62.
  • the pivotable plate 22 is locked by the hinge 62.

Description

Die Erfindung betrifft eine Reinigungsvorrichtung für Druckwalzen oder -zylinder mit Hilfe eines Reinigungstuches, das gegen die zu reinigende Oberfläche gedrückt und von einer Vorratswelle zu einer Sammelwelle für verschmutztes Reinigungstuch transportiert wird, mit einem Antrieb zum Drehen der Sammelwelle, der einen Antriebszylinder umfasst, dessen Kolbenstange mit einem schwenkbaren Hebel verbunden ist, der mit einem Freilauf zusammenwirkt, der beim Vorschub des Kolbens Drehmoment überträgt, beim Rückzug des Kolbens dagegen entkoppelt.The invention relates to a cleaning device for pressure rollers or cylinders by means of a cleaning cloth, which is pressed against the surface to be cleaned and transported from a supply shaft to a collecting shaft for dirty cleaning cloth, with a drive for rotating the collecting shaft comprising a drive cylinder whose piston rod is connected to a pivotable lever which cooperates with a freewheel, which transmits torque during the advancement of the piston, while decoupling the retraction of the piston.

Eine Reinigungsvorrichtung dieser Art ist aus der DE 10 2004 035 399.9 A1 der Anmelderin bekannt. Bei der bekannten Vorrichtung wird das Reinigungstuch, das mit Wasser und/oder einem Reinigungsmittel besprüht wird, über eine elastische Leiste, insbesondere Gummileiste gezogen und durch diese gegen die Oberfläche der zu reinigenden Walze gedrückt. Nach Eintritt einer gewissen Verschmutzung wird das Reinigungstuch taktweise von einer Vorratswelle zu einer Sammelwelle gezogen und auf diese aufgewickelt. Die Reinigungsvorrichtung liegt in einem langgestreckten Gehäuse mit zwei Endplatten, in denen die beiden Enden der Vorratswelle und der Sammelwelle gelagert sind. Auch die erwähnte elastische Leiste erstreckt sich von der einen Endplatte zu der anderen. Als Antrieb zur Drehung der Wickelwelle wird ein Nachstellzylinder beschrieben, dessen Kolbenstange an einem Außenring eines Freilauflagers derart angreift, dass die Wickelwelle beim Vorschub der Kolbenstange in Wickelrichtung gedreht wird, beim Rückhub dagegen aufgrund des Freilauf-Effekts stehenbleibt.A cleaning device of this kind is from the DE 10 2004 035 399.9 A1 the applicant known. In the known device, the cleaning cloth, which is sprayed with water and / or a cleaning agent, pulled over an elastic strip, in particular rubber strip and pressed by this against the surface of the roller to be cleaned. After some contamination, the cleaning cloth is cyclically pulled from a supply shaft to a collecting shaft and wound up on this. The cleaning device is located in an elongated housing with two end plates in which the two ends of the supply shaft and the collecting shaft are mounted. Also, the mentioned elastic strip extends from one end plate to the other. As a drive for rotating the winding shaft, an adjusting cylinder is described, the piston rod engages on an outer ring of a freewheel bearing so that the winding shaft is rotated during advancement of the piston rod in the winding direction, while the return stroke stops due to the freewheel effect.

Die GB 2 277 056 A beschreibt eine Vorrichtung zur Reinigung von Zylindern einer Druckmaschine umfassend ein Reinigungstuch, das von einer austauschbaren Vorratsrolle abgewickelt und auf einer Schmutztuchrolle aufgewickelt werden kann. Beschrieben wird reversierbarer Antrieb zum Vorschub und zum teilweisen Rückaufwickeln des Reinigungstuchs. Als Antrieb wird ein elektronisch regelbarer Elektromotor, der ein Zahnrad antreibt, das beweglich montiert ist, so dass es entweder mit einem Zahnrad, das mit der Vorratsrolle verbunden ist, oder mit einem Zahnrad, das mit der Schmutztuchrolle verbunden ist, in Eingriff bringbar ist.The GB 2 277 056 A describes a device for cleaning cylinders of a printing machine comprising a cleaning cloth that is of a replaceable Unwinded supply roll and can be wound up on a dirty cloth roll. Described is reversible drive for advancing and partially rewinding the cleaning cloth. The drive is an electronically controllable electric motor which drives a gear which is movably mounted so that it can be brought into engagement with either a gear which is connected to the supply roll, or with a toothed wheel which is connected to the dirty cloth roll.

Eine Vorrichtung, die nach diesem Funktionsprinzip ausgebildet ist, arbeitet an sich zufriedenstellend. Naturgemäss ist der auf der Vorratswelle verfügbare Tuchvorrat begrenzt, so dass das Reinigungstuch von Zeit zu Zeit gewechselt werden muss. Dies führt zu Betriebsunterbrechungen und damit zu Zeitverlusten. Im übrigen ist die Ausnutzung des Reinigungstuches verhältnismässig unökonomisch. Während zu Beginn eines Reinigungsvorganges viel Schmutz anfällt, nimmt die Schmutzlast nach und nach immer mehr ab, so dass das Reinigungstuch schliesslich allenfalls noch geringfügig verschmutzt wird.A device which is designed according to this operating principle works satisfactorily per se. Naturally, the supply of cloth available on the supply shaft is limited so that the cleaning cloth has to be changed from time to time. This leads to business interruptions and thus to loss of time. Moreover, the use of the cleaning cloth is relatively uneconomical. While much dirt accumulates at the beginning of a cleaning process, the dirt load gradually decreases more and more, so that the cleaning cloth is possibly only slightly contaminated.

Der Erfindung liegt die Aufgabe zugrunde, eine platzsparende und günstig herzustellende Reinigungsvorrichtung zu schaffen, mit der die Intervalle, in denen das Reinigungstuch gewechselt werden muss, verlängert und die Ausnutzung des Reinigungstuches insgesamt ökonomischer gestaltet werden können.The invention has for its object to provide a space-saving and inexpensive to produce cleaning device with which the intervals in which the cleaning cloth must be changed, extended and the utilization of the cleaning cloth can be made more economical overall.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass der Freilauf mit einem Antriebsrad verbunden ist und dass der Antriebszylinder und das Antriebsrad auf einer schwenkbar am Vorrichtungsgehäuse gelagerten Halterung angebracht sind, die in ihrer Schwenkbewegung beweglich ist zwischen einer ersten Stellung, in der eine Antriebsverbindung des Antriebsrades zur Sammelwelle für verschmutztes Reinigungstuch besteht, und einer zweiten Stellung, in der eine Antriebsverbindung zur Vorratswelle besteht.This object is achieved in that the freewheel is connected to a drive wheel and that the drive cylinder and the drive wheel are mounted on a pivotally mounted on the device housing holder, which is movable in its pivotal movement between a first position in which a drive connection of the drive wheel for There is a collecting shaft for dirty cleaning cloth, and a second position in which there is a drive connection to the supply shaft.

Das bedeutet, dass die Transportrichtung des Reinigungstuches umgeschaltet werden kann. Das Reinigungstuch kann also sowohl von der Vorratswelle auf die Sammelwelle gezogen werden als auch umgekehrt von der Sammelwelle zurück zur Vorratswelle. Das gegen Ende eines Reinigungsvorgangs nur noch geringfügig verschmutzte Reinigungstuch kann also noch einmal genutzt werden zur Reinigung stark verschmutzter Walzenoberflächen.This means that the transport direction of the cleaning cloth can be switched. The cleaning cloth can therefore be pulled both from the supply shaft to the collecting shaft and vice versa from the collecting shaft back to Supply shaft. The cleaning cloth, which is only slightly soiled towards the end of a cleaning process, can therefore be used again for cleaning heavily soiled roll surfaces.

Vorzugsweise ist das Antriebsrad ein Zahnrad und auf der Sammelwelle sowie der Vorratswelle befinden sich ebenfalls Zahnräder, mit denen das Antriebsrad abwechselnd in Eingriff gebracht werden kann. Wenn die Drehrichtung der Vorratswelle beim Rücklauf des Bandes entgegengesetzt zu der Drehrichtung der Sammelwelle beim Vorlauf sein soll, befindet sich zwischen dem Antriebs-Zahnrad und dem Zahnrad auf einer der Wollen ein Zwischenzahnrad.Preferably, the drive wheel is a gear and on the collecting shaft and the supply shaft are also gears, with which the drive wheel can be alternately engaged. If the direction of rotation of the supply shaft in the return of the tape to be opposite to the direction of rotation of the collecting shaft in the forward, is located between the drive gear and the gear on one of the wool an idler gear.

Die Halterung, auf der sich der Antriebszylinder und das Antriebsrad befinden, ist vorzugsweise als flache Platte ausgebildet, die an einem Ende der Reinigungsvorrichtung gelagert ist. Als Antrieb zum Schwenken dieser Platte ist vorzugsweise ein Schwenkzylinder, insbesondere Luftzylinder vorgesehen, der gestellfest an der Reinigungsvorrichtung gelagert ist, so dass die schwenkbare Platte mit Hilfe des Schwenkzylinders geschwenkt werden kann.The holder, on which the drive cylinder and the drive wheel are located, is preferably formed as a flat plate, which is mounted at one end of the cleaning device. As a drive for pivoting this plate is preferably a pivot cylinder, in particular air cylinder is provided, which is mounted fixed to the frame on the cleaning device, so that the pivotable plate can be pivoted by means of the pivot cylinder.

Vorzugsweise geht der Schwenkzylinder für die schwenkbare Halterung bzw. Platte am Ende eines Antriebsvorganges in eine Sperrstellung, so dass er nicht durch den Hub des Antriebszylinders zurückgedrückt werden kann. Diese Gefahr könnte deshalb bestehen, weil der Antriebszylinder wesentlich stärker ist als der Schwenkzylinder der schwenkbaren Platte.Preferably, the swivel cylinder for the pivotable holder or plate at the end of a drive operation is in a blocking position, so that it can not be pushed back by the stroke of the drive cylinder. This danger could exist because the drive cylinder is much stronger than the swing cylinder of the pivoting plate.

Auf der schwenkbaren Platte ist im übrigen eine Kurvenrolle vorgesehen, die zum einen mit einem Fühler für die Wickeldicke auf der Sammelwelle verbunden ist und zum anderen gegen den schwenkbaren Hebel des Antriebs anliegt. Diese Kurvenrolle dient zur Hubbegrenzung des Antriebszylinders und zur Anpassung des Hubes des Antriebszylinders an den Durchmesser der aufgewickelten Bahn auf der Sammelwelle, so dass mit jedem Hub ein gleich langes Stück des Reinigungstuches aufgewickelt werden kann.On the pivotable plate, a cam roller is otherwise provided, which is connected to a sensor for the winding thickness on the collecting shaft and rests against the other hand, the pivotable lever of the drive. This cam roller serves to limit the stroke of the drive cylinder and to adapt the stroke of the drive cylinder to the diameter of the wound web on the collecting shaft, so that with each stroke an equal length piece of the cleaning cloth can be wound.

Die Kurvenrolle, die die Hubbegrenzung des Antriebszylinders bewirkt, wird durch den Durchmesserfühler für die Wickeldicke auf der Sammelwelle gedreht und damit eingestellt.The cam roller which causes the stroke limit of the drive cylinder is rotated by the diameter sensor for the winding thickness on the collecting shaft and thus adjusted.

Im folgenden werden bevorzugte Ausführungsbeispiele der Erfindung anhand der beigefügten Zeichnungen näher erläutert.

Fig. 1
ist eine Ansicht auf eines der Enden einer insgesamt balkenförmigen Reinigungsvorrichtung in der Stellung für Vorwärtstransport des Reinigungstuches;
Fig. 2
ist eine entsprechende Darstellung, bezieht sich jedoch auf den Rücktransport des Reinigungstuches;
Fig. 3
ist eine vergrößerte Teildarstellung zu Fig. 1.
In the following preferred embodiments of the invention will be explained in more detail with reference to the accompanying drawings.
Fig. 1
Figure 11 is a view of one of the ends of a generally bar-shaped cleaning device in the position for advancing the cleaning cloth;
Fig. 2
is a corresponding representation, but refers to the return transport of the cleaning cloth;
Fig. 3
is an enlarged partial view too Fig. 1 ,

Im oberen Bereich der Fig. 1 ist die geometrische Achse einer senkrecht zur Zeichenebene stehenden Welle markiert, die in der Zeichnung verdeckt ist und die hier als Vorratswelle 10 bezeichnet werden soll. Die Vorratswelle 10 dient zur Aufnahme einer Vorratsrolle eines sauberen Reinigungstuches. Dieses Reinigungstuch wird in nicht dargestellter Weise über eine elastische Leiste gezogen und so Schritt für Schritt auf eine Sammelwelle übertragen, die ebenfalls senkrecht zur Zeichenebene in Fig. 1 steht und ebenfalls durch ihre geometrische Achse repräsentiert wird. Die Sammelwelle 12 befindet sich im unteren Bereich der Fig. 1. Die beiden Wellen 10 und 12 sind zwischen zwei Endplatten 14 gelagert, die die balkenförmige Reinigungsvorrichtung an beiden Seiten tragen und begrenzen.In the upper area of the Fig. 1 is the geometric axis of a perpendicular to the plane wave marked, which is hidden in the drawing and which should be referred to here as supply shaft 10. The supply shaft 10 serves to receive a supply roll of a clean cleaning cloth. This cleaning cloth is pulled in a manner not shown on an elastic strip and transferred step by step to a collecting shaft, which is also perpendicular to the plane in Fig. 1 is also represented by its geometric axis. The collecting shaft 12 is located in the lower region of Fig. 1 , The two shafts 10 and 12 are mounted between two end plates 14, which support and limit the bar-shaped cleaning device on both sides.

Auf den beiden Wellen 10 und 12 befinden sich Zahnräder 16 und 18, auf die später eingegangen werden soll. Im übrigen ist auf der Endplatte 14 in einer Achse 20 eine schwenkbare Platte 22 angebracht, auf der einige der in Fig. 1 und 2 gezeigten Elemente gelagert sind, wie anschließend erläutert werden soll. Die schwenkbare Platte 22 steht mit einem Schwenkzylinder 24 in Verbindung, dessen Kolbenstange 26 in einer Achse 28 schwenkbar mit der schwenkbaren Platte 22 verbunden ist.On the two shafts 10 and 12 are gears 16 and 18, which will be discussed later. Incidentally, on the end plate 14 in an axis 20, a pivotable plate 22 is mounted, on which some of the in Fig. 1 and 2 shown elements are stored, as will be explained below. The pivotable plate 22 is connected to a pivoting cylinder 24 in connection, the piston rod 26 is pivotally connected in an axis 28 with the pivotable plate 22.

Auf der schwenkbaren Platte 22 ist ein Antriebszylinder 30 in einer Achse 32 schwenkbar gelagert. Der Antriebszylinder 30 weist eine Kolbenstange 34 auf, die mit einem Hebel 36 über eine Achse 38 schwenkbar verbunden ist. Der Hebel 36 seinerseits steht mit einem Außenring eines nicht dargestellten Freilaufs in Verbindung, dessen Innenring mit einem Zahnrad 40 in Verbindung steht, das in einer Achse 42 auf der erwähnten schwenkbaren Platte 22 gelagert ist.On the pivotable plate 22, a drive cylinder 30 is pivotally mounted in an axis 32. The drive cylinder 30 has a piston rod 34 which is pivotally connected to a lever 36 via an axis 38. The lever 36 in turn is connected to an outer ring of a freewheel, not shown, in connection, whose inner ring is connected to a gear 40 in connection, which is mounted in an axis 42 on said pivotable plate 22.

Der nicht dargestellte Freilauf bewirkt, dass beim Ausfahren der Kolbenstange 34 des Antriebszylinders 30 Drehmoment über den Hebel 36 und den Freilauf auf das Zahnrad 40 übertragen wird, beim Rückhub der Kolbenstange 34 dagegen keine Antriebsverbindung besteht, das Zahnrad also stehenbleibt.The freewheel, not shown, causes 30 torque on the lever 36 and the freewheel on the gear 40 is transmitted during extension of the piston rod 34 of the drive cylinder, on the return stroke of the piston rod 34, however, there is no drive connection, so the gear stops.

Auf der schwenkbaren Platte 22 ist im übrigen eine schwenkbare Sperrklinke 44 angebracht, die in das Zahnrad 40 eingreifen und diese sperren kann. Dadurch kann verhindert werden, dass der Antrieb unbeabsichtigt nachläuft.On the pivotable plate 22, a pivotable pawl 44 is otherwise mounted, which can engage in the gear 40 and lock them. This can prevent the drive running unintentionally.

Auf dem Ende der Vorratswelle 10 befindet sich das bereits erwähnte Zahnrad 16, und auf dem Ende der Sammelwelle ist das Zahnrad 18 befestigt. Das Zahnrad 16 auf der Vorratswelle kämmt mit einem weiteren Zahnrad 46, das in einer Achse 48 am Vorrichtungsgehäuse, genauer gesagt an der in Fig. 1 und 2 dargestellten Endplatte 14 gelagert ist.On the end of the supply shaft 10 is the already mentioned gear 16, and on the end of the collecting shaft, the gear 18 is fixed. The gear 16 on the supply shaft meshes with another gear 46, which in an axis 48 on the device housing, more precisely to the in Fig. 1 and 2 is shown end plate 14 is mounted.

Auf der schwenkbaren Platte 22, die um die Achse 20 mit Hilfe des Schwenkzylinders 24 geschwenkt werden kann, befinden sich der Antriebszylinder 30, der in der Achse 32 gelagert ist, und das Zahnrad 40 mit seiner Achse 42.On the pivotable plate 22 which can be pivoted about the axis 20 by means of the pivoting cylinder 24, there are the drive cylinder 30 which is mounted in the axis 32, and the gear 40 with its axis 42nd

Wie ein Vergleich von Fig. 1 und 2 zeigt, kann durch Schwenkung der schwenkbaren Platte 22 zwischen einer ersten Position und einer zweiten Position das Zahnrad 40 alternativ mit dem Zahnrad 18 der Sammelwelle (Vorwärtsantrieb) oder mit dem Zahnrad 16 der Vorratswelle (Rücktransport) in Eingriff gebracht werden.Like a comparison of Fig. 1 and 2 Alternatively, by pivoting the pivotable plate 22 between a first position and a second position, the gear 40 may alternatively be engaged with the gear shaft 18 of the collecting shaft (forward drive) or with the gear 16 of the supply shaft (return transport).

Da die Vorratswelle 16 in entgegengesetzter Richtung zu der Sammelwelle 18 gedreht werden muß, ist das Zahnrad 46 als Zwischenzahnrad vorgesehen, das eine Drehrichtungsumkehr bewirkt.Since the supply shaft 16 must be rotated in the opposite direction to the collecting shaft 18, the gear 46 is provided as an intermediate gear, which causes a reversal of direction.

Zu Fig. 2 ist der guten Ordnung halber zu ergänzen, dass die Verbindung zwischen der Kolbenstange 26 des Schwenkzylinders 24 und der schwenkbaren Platte hier als gelöst dargestellt ist. Tatsächlich ist die Achse 28 der Kolbenstange 26 mit der Achse 52 der schwenkbaren Platte 22 identisch, oder es besteht eine Verbindung über ein Koppelgelenk, wie später beschrieben wird.To Fig. 2 For the sake of good order, it should be added that the connection between the piston rod 26 of the swivel cylinder 24 and the pivotable plate is shown here as being released. In fact, the axis 28 of the piston rod 26 is identical to the axis 52 of the pivotable plate 22, or there is a connection via a coupling joint, as will be described later.

Fig. 1 zeigt die Stellung, in der das Zahnrad 40 mit dem Zahnrad 18 der Sammelwelle in Eingriff steht. In dieser Stellung wird die Sammelwelle in Vorwärtsrichtung gedreht. Es handelt sich um den üblichen Betrieb, bei dem das Reinigungstuch von der Vorratswelle zur Sammelwelle gezogen wird. Fig. 1 shows the position in which the gear 40 is engaged with the gear 18 of the collecting shaft. In this position, the collecting shaft is rotated in the forward direction. It is the usual operation, in which the cleaning cloth is pulled from the supply shaft to the collecting shaft.

Andererseits zeigt Fig. 2 die Stellung, in der das Zahnrad 40 mit dem Zahnrad 46 in Eingriff steht, das das Zwischenzahnrad des Antriebs bildet.On the other hand shows Fig. 2 the position in which the gear 40 is engaged with the gear 46, which forms the intermediate gear of the drive.

Alle in der Zeichnung dargestellten Elemente, die nicht auf der schwenkbaren Platte 22 gelagert sind, sind auf der mit 14 bezeichneten Endplatte des Gehäuses befestigt oder gelagert, die das nicht dargestellte Gehäuse der Reinigungsvorrichtung abschließt. Dies gilt insbesondere für die beiden Wellen 10 und 12 mit ihren Zahnrädern 16 und 18, die schwenkbare Platte 22 selbst mit ihrem Schwenkzylinder 24, das Zwischenzahnrad 46, und eine Kurvenrolle 56, die in einer Achse 58 drehbar auf der Endplatte 14 gelagert ist. Die Kurvenrolle 56 kann durch einen schwenkbaren Fühler 60 in ihrer Winkelposition eingestellt werden, der hinter der Endplatte 14 liegt und daher nur gestrichelt dargestellt ist. Der Fühler dient dazu, die Dicke des aufgenommenen Wickels des verschmutzten Reinigungstuchs auf der Sammelwelle 12 abzutasten.All elements shown in the drawing, which are not mounted on the pivotable plate 22, are mounted or mounted on the 14 designated end plate of the housing, which terminates the housing, not shown, of the cleaning device. This is especially true for the two shafts 10 and 12 with their gears 16 and 18, the pivoting plate 22 itself with its pivoting cylinder 24, the intermediate gear 46, and a cam roller 56 which is rotatably mounted in an axis 58 on the end plate 14. The cam roller 56 can be adjusted by a pivotable probe 60 in its angular position, which lies behind the end plate 14 and therefore only shown in dashed lines. The probe serves to sense the thickness of the picked-up roll of soiled cleaning cloth on the collecting shaft 12.

Dieser Wert ist von Bedeutung, da es von der Dicke des Wickels abhängt, wie lang ein Abschnitt des Reinigungstuches ist, der bei einer bestimmten Drehung der Wickelwelle aufgenommen wird. Der Drehwinkel, den die Wickelwelle 12 bei jedem Hub des Antriebszylinders 30 zurücklegt, hängt naturgemäß andererseits von der Länge dieses Hubes ab.This value is important since it depends on the thickness of the roll how long a portion of the cleaning cloth is that is picked up by a certain rotation of the winding shaft. On the other hand, the angle of rotation traveled by the winding shaft 12 at each stroke of the drive cylinder 30 depends on the length of this stroke.

Tendenziell wird daher die Hublänge der Kolbenstange 34 um so kürzer eingestellt, je dicker der Wickel auf der Wickelwelle ist. Die Kurvenrolle 56 bildet dabei einen Anschlag für die Schwenkung des Hebels 36 und damit für den Hub des Zylinders 30.Therefore, the stroke length of the piston rod 34 tends to be set the shorter the thicker the winding on the winding shaft. The cam roller 56 forms a stop for the pivoting of the lever 36 and thus for the stroke of the cylinder 30th

Fig. 3 ist ein vergrößerter Ausschnitt aus Fig. 1 und zeigt die schwenkbare Platte 22 mit dem Hebel 36 und dem Zahnrad 40 sowie dem Zahnrad 18 auf der Sammelwelle. In dieser Stellung besteht die Gefahr, dass der wesentlich stärkere Antriebszylinder 30 den relativ schwachen Schwenkzylinder 24 der schwenkbaren Platte 22 zurückdrängt, so dass es beispielsweise zu einer nicht erwünschten Schwenkung der schwenkbaren Platte 22 durch den Antriebszylinder 30 kommt. Fig. 3 is an enlarged section of Fig. 1 and shows the pivotable plate 22 with the lever 36 and the gear 40 and the gear 18 on the collecting shaft. In this position, there is a risk that the much stronger drive cylinder 30, the relatively weak pivot cylinder 24 of the pivotable plate 22 zurückdrängt so that it comes, for example, to an undesirable pivoting of the pivotable plate 22 by the drive cylinder 30.

Fig. 3 zeigt daher ein Gelenk, das die Kolbenstange 26 mit der schwenkbaren Platte 22 verbindet und mit 62 bezeichnet ist. Die schwenkbare Platte 22 wird durch das Gelenk 62 gesperrt. Fig. 3 shows therefore a joint which connects the piston rod 26 with the pivotable plate 22 and is designated 62. The pivotable plate 22 is locked by the hinge 62.

Claims (9)

  1. A cleaning device for cleaning printing rollers or cylinders with the help of a cleaning cloth pressable against the surface to be cleaned, with a supply shaft (10) and a collecting shaft (12), wherein soiled cleaning cloth is transportable from the supply shaft (10) to the collecting shaft (12), and with a drive (30, 34, 40) for rotating the collecting shaft (12), which comprises a drive cylinder (30), the piston rod (34) of which is connected to a pivotable lever (36) interacting with a freewheel that transmits torque when the piston is advanced, but decouples when the piston is retracted, characterized that the freewheel is connected to a driving wheel (40) and that the drive cylinder (30) and the driving wheel (40) are attached to a holder (22) pivotally supported on the device housing, said holder being movable in the pivoting movement thereof between a first position, in which a drive connection of the driving wheel (40) to the collecting shaft (12) for soiled cleaning cloth is established, and a second position, in which a drive connection to the collecting shaft (10) is established.
  2. The cleaning device according to claim 1, characterized in that the driving wheel is a gear (40), and that corresponding gears are located on the collecting shaft (12) and the supply shaft (10).
  3. The cleaning device according to claim 2, characterized in that one of the gears (18, 16) on the collecting shaft (12) and the supply shaft (10) meshes with a further gear (46) supported on the device housing, and that the drive connection for one of the gears (16, 18) on one of the shafts to the driving gear (40) is established via the gear (46) that serves as the intermediate gear.
  4. The cleaning device according to one of claims 1 to 3, characterized in that the holder is a flat plate (22).
  5. The cleaning device according to claim 4, characterized in that the holder has a pivoting cylinder (24) as the pivot drive.
  6. The cleaning device according to one of the preceding claims, characterized by a locking pawl (64) on the pivotable plate for blocking the driving gear (40).
  7. The cleaning device according to one of the preceding claims, characterized by a cam roller (56), the circumferential surface of which determines the respective final position of the stroke of the drive cylinder (30) and which is adjustable with the help of a sensing head that scans the thickness of the winding of the soiled cleaning cloth on the collection shaft (12).
  8. The cleaning device according to one of the preceding claims, characterized by a locking pawl (44) pivotally attached on the pivotable plate (22), which engages with the driving gear (40) in one of its positions.
  9. The cleaning device according to one of the preceding claims, characterized by a hinge (62) in the joint between the pivoting cylinder (24) and the pivotable plate (22), which locks the pivotable plate in one of its two final positions after pivoting.
EP20070018071 2006-10-26 2007-09-14 Cleaning device for printing rollers Expired - Fee Related EP1918107B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610050490 DE102006050490B3 (en) 2006-10-26 2006-10-26 Cleaning device for printing rollers/cylinders uses a cleaning cloth/fabric pressed against a surface to be cleaned and conveyed by a dispenser shaft to a collector shaft for soiled cleaning clothes

Publications (3)

Publication Number Publication Date
EP1918107A2 EP1918107A2 (en) 2008-05-07
EP1918107A3 EP1918107A3 (en) 2009-07-15
EP1918107B1 true EP1918107B1 (en) 2011-03-09

Family

ID=38565127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070018071 Expired - Fee Related EP1918107B1 (en) 2006-10-26 2007-09-14 Cleaning device for printing rollers

Country Status (2)

Country Link
EP (1) EP1918107B1 (en)
DE (2) DE102006050490B3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0822592B2 (en) * 1987-11-06 1996-03-06 ビー・ジェー・トレーディング有限会社 Cylinder cleaning device
JP3000535B2 (en) * 1992-01-27 2000-01-17 株式会社小森コーポレーション Printing machine cylinder cleaning equipment
DE4312420C2 (en) 1993-04-16 2001-04-19 Heidelberger Druckmasch Ag Washing device for cylinders of a printing machine
US5735212A (en) * 1994-08-09 1998-04-07 Baldwin-Japan Ltd. Cylinder cleaning apparatus
DE102004035399A1 (en) * 2004-07-21 2006-02-16 Technotrans Ag Device for cleaning surfaces, in particular printing press cylinders

Also Published As

Publication number Publication date
EP1918107A3 (en) 2009-07-15
DE102006050490B3 (en) 2007-11-08
DE502007006651D1 (en) 2011-04-21
EP1918107A2 (en) 2008-05-07

Similar Documents

Publication Publication Date Title
DE4312420C2 (en) Washing device for cylinders of a printing machine
EP0006511A1 (en) Device for cleaning pipes
EP1272349B1 (en) Cleaning-cloth roller for cleaning devices
DE2601025C3 (en) Device for printing on intermittently fed strips or ribbons
DE10330302B4 (en) Device for receiving a supply roll with a trunnion
EP1918107B1 (en) Cleaning device for printing rollers
DE102015109952A1 (en) Cleaning device for acting on a surface to be cleaned
EP3319846A1 (en) Washing device for a vehicle washing system, and vehicle washing system
EP1619027A1 (en) Device for cleaning surfaces, in particular cylinders of printing machines
DE6809450U (en) RUBBER SHEET WASHING UNIT FOR OFFSET MACHINE
WO2004101283A1 (en) Device and method for cleaning a cylinder or a roller of a printing press
DE10160197A1 (en) Device for cleaning rotary print machine cylinders has an assembly of dirty cloth and clean cloth spindles together with a drive and clutch mechanism that enables reuse of the relatively clean cloth sections
DE3600095A1 (en) WINDOW WIPER DEVICE WITH NON-CIRCULAR WIPING MOVEMENT
EP2114681B1 (en) Printing unit of a rotary printing press and a method for washing a dampening unit of a printing unit
DE10118074A1 (en) Cleaning device for printing machine, has coupling unit which mutually connects and disconnects cleaning tool and tilting clamp mechanism
DE102021117391B3 (en) Device for cleaning an inside of a roller shutter facing a window and method for operating such a device
DE3144093C1 (en) Device for cleaning roller shutters for windows
EP3827952B1 (en) Wall saw with guide for saw blade guard
EP1440615B1 (en) Agricultural machine
DE3546038C2 (en)
DE19725505A1 (en) Folder for printed sheets
DE1611333C3 (en)
EP1813760B1 (en) Movement system for a pivoting and sliding door
DE10160255A1 (en) Device for cleaning rotary print machine cylinders comprises a gear wheel rack and pinion drive that enables the easy insertion and removal of a wash bar in its support device or removal of its component elements
DE2909769A1 (en) DEVICE FOR FEEDING, TENSIONING AND DISCHARGING ROD OR TUBULAR GOODS

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: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20091203

17Q First examination report despatched

Effective date: 20100120

AKX Designation fees paid

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502007006651

Country of ref document: DE

Date of ref document: 20110421

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007006651

Country of ref document: DE

Effective date: 20110421

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

Ref country code: GB

Payment date: 20110914

Year of fee payment: 5

Ref country code: FR

Payment date: 20110908

Year of fee payment: 5

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

Effective date: 20111212

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007006651

Country of ref document: DE

Effective date: 20111212

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120914

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

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 NON-PAYMENT OF DUE FEES

Effective date: 20130403

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120914

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007006651

Country of ref document: DE

Effective date: 20130403