EP1244551B1 - Washing bar for a printing press cylinder - Google Patents

Washing bar for a printing press cylinder Download PDF

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Publication number
EP1244551B1
EP1244551B1 EP01905647A EP01905647A EP1244551B1 EP 1244551 B1 EP1244551 B1 EP 1244551B1 EP 01905647 A EP01905647 A EP 01905647A EP 01905647 A EP01905647 A EP 01905647A EP 1244551 B1 EP1244551 B1 EP 1244551B1
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EP
European Patent Office
Prior art keywords
wash
bar
crossbar
pipe
pressure element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01905647A
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German (de)
French (fr)
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EP1244551A1 (en
Inventor
Torsten Schmutz
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.)
Baldwin Germany GmbH
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Baldwin Germany GmbH
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Publication date
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Publication of EP1244551A1 publication Critical patent/EP1244551A1/en
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Publication of EP1244551B1 publication Critical patent/EP1244551B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

Definitions

  • the ending relates to a wash bar for printing press cylinders according to the preamble of claim 1.
  • Such a wash bar is e.g. known from US-A-5 123 354.
  • the invention relates to a wash bar for Printing press cylinder, containing side parts and one with these connected traverse, a pressing element for pressing a Washcloth section of a washcloth to the outer surface of one cleaning cylinder, with the pressure element positioned on the crossbar is and extends in the longitudinal direction thereof, and bearings in the side parts for rotatable bearing of a clean cloth spindle and a dirty cloth spindle, around the washcloth from the clean cloth spindle over the pressure element to move the dirty cloth spindle the pressing element in Truss-transverse direction seen arcuate extends over an inner bar, the two Longitudinal edges of the pressing element between the inner bar and outer bars inserted are and the strips with the Traverse are connected.
  • the object of the invention is to solve a problem create through which the pressure element in a simple manner quickly can be assembled and disassembled.
  • the wash bar is characterized according to the invention in that that the longitudinal edges of the pressing element the crossbar sit on and each have a lateral edge projection that of the neighboring bar is overlapped, that the inner bar on the crossbar is releasably attached with fasteners that are outside of the Pressing element are accessible so that the inner bar can be detached from them and after loosening the inner bar from the pressing element in the longitudinal direction of the truss is extractable.
  • the pressure element preferably consists of a flexible elastic Material, e.g. As rubber or plastic, and is usually also called Pressure lip or pressure membrane called.
  • the press cylinder that washes with the wash bar can be, is in particular a so-called blanket cylinder in one Offset printing machine, however, can be any other cylinder or any different role of an offset printing press or another printing press his.
  • the washing bar 2 shown in the drawings for Printing press cylinder 4 contains a pressing element 6 for pressing one Wash cloth section 8 to the outer surface 10 of the cylinder to be cleaned 4.
  • the pressing element 6 is preferably a flexible lip made of rubber or Plastic. According to FIG. 1, it essentially has a cross section semicircular or u-shaped tunnel roof shape and forms between itself and one Inner bar 12 has a cavity 14.
  • the cavity 14 can be inflatable to Contact and press the pressure element 6 to the cylinder 4 with the washcloth section 8 lying between them
  • the embodiment shown in the drawings is not the cavity 14 inflatable.
  • Dashed lines 6-2 show how the pressing element 6 of the Cylinder 4 is deformable.
  • the wash bar 2 can be of a not shown Drive automatically from the basic position shown in Fig.
  • the longitudinal edges 16 and 17 of the pressing element 6 are between one Traverse 20, the inner bar 12 and outer holding bars 18 and 19 clamped, which each extend over the entire length of the Pressure element 6 extend and on the cross member 20 with screws 21 and 23 or are fastened by quick connection elements (clamping wedge or the like).
  • this inner bar 12 can the pressing element 6 are pulled out in the longitudinal direction of the bar. Then the pressing element 6 between the outer strips 18 and 19 in Strip longitudinal direction are pulled out or transversely to the outer strips 18th and 19 compressed and thus freed from them and then across or be taken out lengthways. The insertion of the pressing element 6 and the inner bar 12 between the outer bars 18 and 19 takes place in reverse order.
  • the longitudinal edges 16 and 17 of the pressing element 6 sit on the cross member 20 and each have an outwardly protruding edge projection 16-1 or 17-1, which is overlapped by the adjacent outer retaining strip 18 or 19.
  • the cross member 20 connects side parts 22 of the wash bar to one another.
  • bearings 24 for the rotatable mounting of a Clean cloth spindle 26, on which a clean wash cloth 28 is wound, and bearings 30 for a dirty cloth spindle 32 for winding each dirty washcloth section.
  • the dirty cloth spindle 32 is provided with a freewheel drive 34, which the dirty cloth spindle 32 then rotates and thereby the wash cloth from the cleaning cloth spindle 26 via a deflection plate 36 and the pressing element 6 transported by a predetermined washcloth section 8 when the Wash bar 2 from the basic position shown in Fig. 1 in the washing position is moved transversely to the cylinder 4. Press in the washing position not shown the pressing element 6 the washcloth section 8 against the lateral surface 10 of the cylinder 4 and is thereby easily deformed as this by the dashed lines 6-2 is shown.
  • the freewheel drive 34 is similar to one Ratchet trained.
  • the backward movement or free-running movement of the cloth driving lever 38 is limited by a sensor lever 40 which is provided with a roller 42, which rides on the wipe of the dirty cloth spindle 34 and thereby the return path in the freewheeling direction of the cloth driving lever 38 in Dependence on the respective diameter of the wipe certainly. This ensures that regardless of the winding diameter of the washcloth on the two spindles 32 and 26 each advance step of the Washcloth is about the same size.
  • the wash bar has two rollers 44 and 45 on each side, with which it moves in Guides a fixed bracket between the basic position and the Washing position is mobile.
  • a spray tube 50 is next to the path of movement of the washcloth 28 from the Clean cloth spindle 26 to the pressing element 6 arranged for moistening of the washcloth 28 by a curtain-like spray 52 from a very large variety of very small nozzle bores 54 in the spray tube 50.
  • the spray tube 50 is in a channel 56 of the upper outer holding strip in FIG. 1 19 used and is in it by the retaining bar against deflection supported.
  • the cross-sectional shape of the channel 56 is the round shape of the Spray tube 50 adapted and extends only partially, preferably around about 180 ° around the spray tube 50.
  • the spray tube 50 can radially in channel 56 may be used, however, is preferred Embodiment axially inserted into the channel 56 and from this too axially extractable.
  • the spray tube 50 is preferably only at its ends one fastener 58-1 and 58-2 releasably attached to the cross member 20.
  • the fasteners 58-1 and 58-2 are preferably mirror images or Identical liquid connector body, in which the ends of the Spray tube 50 are inserted liquid-tight.
  • the seal will preferably achieved by O-rings 60 which are on the pipe ends are attached.
  • the fluid connector bodies 58-1 and 58-2 are over Liquid lines 62-1 and 62-2 to a liquid source 64 connected. Liquid, e.g. Water, then in each case via the nozzle bores 54 of the spray tube 50 on the Wash cloth 28 sprayed during or just before the wash cloth 28 by one Step further to the pressing element 6 is moved.
  • the spray jet 52 is preferably in the inlet wedge between this washcloth 28 and the Pressure element 6 directed.
  • the spray tube 50 is preferably with a on its outer circumference Provide flat 66 against which a positioning screw 68 presses, which through the outer retaining strip 19, which carries the spray tube 50, is screwed through.
  • a positioning screw 68 presses, which through the outer retaining strip 19, which carries the spray tube 50, is screwed through.
  • One and / or the other of the two outer holding strips 18 and 19 can be a one-piece piece of material together with the traverse 20.
  • 5 and 6 show an embodiment in which both outer Holding strips 18 and 19 together with the cross member 20 a one-piece Are piece of material. 5 and 6 also show a possibility for detachable Attachment of the inner bar 12 to the cross member 20 by Quick fasteners 70 instead of screws 21.
  • the Quick fasteners 70 are about an axis of rotation 72 which in the Traverse 20 is mounted, pivotable on the inner bar 12.
  • the inner bar 12 can be designed such that it has the longitudinal edges 16, 17th of the, preferably compressibly elastic, pressing element 6 laterally engages and preferably against the cross member 20 and / or the outer Holding strips 18, 19 spans.
  • the inner bar 12 z. B. with Height distance above the crossbeam have 20 lateral edge projections, which overlap inner edge projections of the pressing element 6, or in Seen in cross-section have a dovetail shape or trapezoid shape, the width of the last near the traverse 20 is smallest and with increasing distance from the traverse becomes larger.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Description

Die Endung betrifft einen Waschbalken für Druckmaschinenzylinder gemäß dem Oberbegriff von Anspruch 1.The ending relates to a wash bar for printing press cylinders according to the preamble of claim 1.

Ein derartiger Waschbalken ist z.B. aus US-A-5 123 354 bekannt.Such a wash bar is e.g. known from US-A-5 123 354.

Demgemäß betrifft die Erfindung einen Waschbalken für Druckmaschinenzylinder, enthaltend Seitenteile und eine mit diesen verbundene Traverse, ein Andrückelement zum Andrücken eines Waschtuchabschnittes eines Waschtuches an die Mantelfläche eines zu reinigenden Zylinders, wobei das Andrückelement an der Traverse positioniert ist und sich in dessen Längsrichtung erstreckt, und Lager in den Seitenteilen zur drehbaren Lagerung einer Saubertuchspindel und einer Schmutztuchspindel, um das Waschtuch von der Saubertuchspindel über das Andrückelement auf die Schmutztuchspindel zu bewegen, wobei sich das Andrückelement in Traversen- Querrichtung gesehen bogenförmig über eine Innenleiste erstreckt, die beiden Längsränder des Andrückelements zwischen die Innenleiste und Außenleisten eingefügt sind und die Leisten mit der Traverse verbunden sind. Accordingly, the invention relates to a wash bar for Printing press cylinder, containing side parts and one with these connected traverse, a pressing element for pressing a Washcloth section of a washcloth to the outer surface of one cleaning cylinder, with the pressure element positioned on the crossbar is and extends in the longitudinal direction thereof, and bearings in the side parts for rotatable bearing of a clean cloth spindle and a dirty cloth spindle, around the washcloth from the clean cloth spindle over the pressure element to move the dirty cloth spindle the pressing element in Truss-transverse direction seen arcuate extends over an inner bar, the two Longitudinal edges of the pressing element between the inner bar and outer bars inserted are and the strips with the Traverse are connected.

Durch die Erfindung soll die Aufgabe gelöst werden, eine Möglichkeit zu schaffen, durch welche das Andrückelement auf einfache Weise schnell montiert und demontiert werden kann.The object of the invention is to solve a problem create through which the pressure element in a simple manner quickly can be assembled and disassembled.

Bei einem Waschbalken, welcher ein Sprührohr zum Besprühen des Waschtuches mit Flüssigkeit enthält, soll gleichzeitig die Möglichkeit geschaffen werden, das Sprührohr auf einfache Weise schnell austauschen zu können.In a wash bar, which has a spray tube for spraying the Contains washcloth with liquid, should also create the opportunity be able to quickly replace the spray tube in a simple manner.

Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.This object is achieved according to the invention by the characterizing Features of claim 1 solved.

Der Waschbalken ist gemäß der Erfindung dadurch gekennzeichnet, daß die Längsränder des Andrückelements auf der Traverse aufsitzen und je einen seitlichen Randvorsprung haben, der von der benachbarten Leiste übergriffen wird, daß die Innenleiste an der Traverse lösbar befestigt ist mit Befestigungsmitteln, die von außerhalb des Andrückelements zugänglich sind, so daß an ihnen die Innenleiste lösbar ist und nach dem Lösen die Innenleiste aus dem Andrückelement in Traversen-Längsrichtung herausziehbar ist.The wash bar is characterized according to the invention in that that the longitudinal edges of the pressing element the crossbar sit on and each have a lateral edge projection that of the neighboring bar is overlapped, that the inner bar on the crossbar is releasably attached with fasteners that are outside of the Pressing element are accessible so that the inner bar can be detached from them and after loosening the inner bar from the pressing element in the longitudinal direction of the truss is extractable.

Weitere Merkmale der Erfindung sind in den Unteransprüchen enthalten.Further features of the invention are contained in the subclaims.

Das Andrückelement besteht vorzugsweise aus einem biegeelastischen Material, z. B. Gummi oder Kunststoff, und wird üblicherweise auch als Anpresslippe oder Anpressmembran bezeichnet. The pressure element preferably consists of a flexible elastic Material, e.g. As rubber or plastic, and is usually also called Pressure lip or pressure membrane called.

Der Druckmaschinenzylinder, welcher mit dem Waschbalken gewaschen werden kann, ist insbesondere ein sogenannter Gummituchzylinder in einer Offset-Druckmaschine, kann jedoch auch jeder andere Zylinder oder jede andere Rolle einer Offset-Druckmaschine oder einer anderen Druckmaschine sein.The press cylinder that washes with the wash bar can be, is in particular a so-called blanket cylinder in one Offset printing machine, however, can be any other cylinder or any different role of an offset printing press or another printing press his.

Die Erfindung wird im folgenden mit Bezug auf die Zeichnungen anhand von bevorzugten Ausführungsformen als Beispiele beschrieben. In den Zeichnungen zeigen

Fig. 1
schematisch eine Seitenansicht eines Waschbalkens nach der Erfindung zum Waschen der Mantelfläche eines Druckmaschinenzylinders,
Fig. 2
eine Längsansicht eines Sprührohres von Fig. 1 mit den ihn haltenden Elementen, im wesentlichen in der Ebene II-II von Fig. 1 in Richtung der dortigen Pfeile gesehen,
Fig. 3
eine Querschnittsansicht längs der Ebene III-III von Fig. 2 in Richtung der dortigen Pfeile gesehen,
Fig. 4
unmaßstäblich eine Vorderansicht auf wesentliche Teile des Waschbalkens von dem Druckmaschinenzylinder her gesehen,
Fig. 5
eine unmaßstäbliche Seitenansicht einer weiteren Ausführungsform einer Haltevorrichtung nach der Erfindung, durch welche ein Waschtuch-Andrückelement und ein Sprührohr schnell austauschbar ist,
Fig. 6
eine Draufsicht auf die Ausführungsform von Fig. 5.
The invention is described below with reference to the drawings using preferred embodiments as examples. Show in the drawings
Fig. 1
schematically a side view of a washing bar according to the invention for washing the outer surface of a printing press cylinder,
Fig. 2
2 shows a longitudinal view of a spray tube from FIG. 1 with the elements holding it, essentially in the plane II-II of FIG. 1 in the direction of the arrows there,
Fig. 3
a cross-sectional view along the plane III-III of FIG. 2 seen in the direction of the arrows there,
Fig. 4
a scale front view of essential parts of the wash bar seen from the printing press cylinder,
Fig. 5
FIG. 2 shows an unscaled side view of a further embodiment of a holding device according to the invention, by means of which a wash cloth pressing element and a spray tube can be exchanged quickly,
Fig. 6
5 shows a top view of the embodiment of FIG. 5.

Der in den Zeichnungen dargestellte Waschbalken 2 für Druckmaschinenzylinder 4 enthält ein Andrückelement 6 zum Andrücken eines Waschtuchabschnittes 8 an die Mantelfläche 10 des zu reinigenden Zylinders 4. Das Andrückelement 6 ist vorzugsweise eine flexible Lippe aus Gummi oder Kunststoff. Sie hat gemäß Fig. 1 im Querschnitt gesehen eine im wesentlichen halbrunde oder u-förmige Tunnel-Dachform und bildet zwischen sich und einer Innenleiste 12 einen Hohlraum 14. Der Hohlraum 14 kann aufblasbar sein zum Kontaktieren und Andrücken des Andrückelementes 6 an den Zylinder 4 mit dem zwischen ihnen liegenden Waschtuchabschnitt 8. Gemäß der in den Zeichnungen dargestellten Ausführungsform ist der Hohlraum 14 nicht aufblasbar. Gestrichelte Linien 6-2 zeigen, wie das Andrückelement 6 von dem Zylinder 4 deformierbar ist. Der Waschbalken 2 kann von einem nicht gezeigten Antrieb automatisch von der in Fig. 1 gezeigten Grundposition, in welcher das Andrückelement 6 Abstand vom Zylinder 4 hat, in eine Waschposition vorgeschoben werden, in welcher das Andrückelement 6 den auf ihm liegenden Waschtuchabschnitt 8 an die Mantelfläche 10 des Zylinders 4 andrückt, und dann wieder in die Grundposition zurückbewegt werden. Nach oder beim Zurückziehen des Waschbalkens 2 von seiner Waschposition in seine Grundposition nimmt das Andrückelement 6 aufgrund seiner eigenen Federelastizität wieder seine in ausgezogenen Linien dargestellte Ursprungsform an.The washing bar 2 shown in the drawings for Printing press cylinder 4 contains a pressing element 6 for pressing one Wash cloth section 8 to the outer surface 10 of the cylinder to be cleaned 4. The pressing element 6 is preferably a flexible lip made of rubber or Plastic. According to FIG. 1, it essentially has a cross section semicircular or u-shaped tunnel roof shape and forms between itself and one Inner bar 12 has a cavity 14. The cavity 14 can be inflatable to Contact and press the pressure element 6 to the cylinder 4 with the washcloth section 8 lying between them The embodiment shown in the drawings is not the cavity 14 inflatable. Dashed lines 6-2 show how the pressing element 6 of the Cylinder 4 is deformable. The wash bar 2 can be of a not shown Drive automatically from the basic position shown in Fig. 1, in which the Pressing element 6 has distance from the cylinder 4, in a washing position be pushed in which the pressing element 6 the lying on it Wash cloth section 8 presses against the outer surface 10 of the cylinder 4, and then be moved back to the basic position. After or at Retract the wash bar 2 from its wash position to its Basic position takes the pressure element 6 due to its own Spring elasticity again its shown in solid lines Original form.

Die Längsränder 16 und 17 des Andrückelementes 6 sind zwischen einer Traverse 20, die Innenleiste 12 und äußere Halteleisten 18 und 19 eingespannt, welche sich jeweils über die gesamte Länge des Andrückelementes 6 erstrecken und an der Traverse 20 mit Schrauben 21 und 23 oder durch Schnellverbindungselemente (Spannkeil oder dgl.) befestigt sind. The longitudinal edges 16 and 17 of the pressing element 6 are between one Traverse 20, the inner bar 12 and outer holding bars 18 and 19 clamped, which each extend over the entire length of the Pressure element 6 extend and on the cross member 20 with screws 21 and 23 or are fastened by quick connection elements (clamping wedge or the like).

Nach dem Herausnehmen der Schrauben 21 oder Lösen der Schnellverbindungselemente der Innenleiste 12 kann diese Innenleiste 12 aus dem Andrückelement 6 in Leistenlängsrichtung herausgezogen werden. Danach kann das Andrückelement 6 zwischen den Außenleisten 18 und 19 in Leistenlängsrichtung herausgezogen werden oder quer zu den Außenleisten 18 und 19 zusammengedrückt und damit von diesen freigemacht und dann quer oder längs herausgenommen werden. Das Einsetzen des Andrückelements 6 und der Innenleiste 12 zwischen die Außenleisten 18 und 19 erfolgt in umgekehrter Reihenfolge.After removing the screws 21 or loosening the Quick-connect elements of the inner bar 12, this inner bar 12 can the pressing element 6 are pulled out in the longitudinal direction of the bar. Then the pressing element 6 between the outer strips 18 and 19 in Strip longitudinal direction are pulled out or transversely to the outer strips 18th and 19 compressed and thus freed from them and then across or be taken out lengthways. The insertion of the pressing element 6 and the inner bar 12 between the outer bars 18 and 19 takes place in reverse order.

Die Längsränder 16 und 17 des Andrückelements 6 sitzen auf der Traverse 20 und haben je einen nach außen wegragenden Randvorsprung 16-1 bzw. 17-1, der von der benachbarten äußeren Halteleiste 18 bzw. 19 übergriffen wird.The longitudinal edges 16 and 17 of the pressing element 6 sit on the cross member 20 and each have an outwardly protruding edge projection 16-1 or 17-1, which is overlapped by the adjacent outer retaining strip 18 or 19.

Die Traverse 20 verbindet Seitenteile 22 des Waschbalkens miteinander.The cross member 20 connects side parts 22 of the wash bar to one another.

In den Seitenteilen 22 befinden sich Lager 24 zur drehbaren Lagerung einer Saubertuchspindel 26, auf welche ein sauberes Waschtuch 28 gewickelt ist, und Lager 30 für eine Schmutztuchspindel 32 zum Aufwickeln des jeweils schmutzigen Waschtuchabschnittes.In the side parts 22 there are bearings 24 for the rotatable mounting of a Clean cloth spindle 26, on which a clean wash cloth 28 is wound, and bearings 30 for a dirty cloth spindle 32 for winding each dirty washcloth section.

Die Schmutztuchspindel 32 ist mit einem Freilaufantrieb 34 versehen, welcher die Schmutztuchspindel 32 jeweils dann dreht und dadurch das Waschtuch von der Saubertuchspindel 26 über ein Umlenkblech 36 und das Andrückelement 6 um einen vorbestimmten Waschtuchabschnitt 8 weitertransportiert, wenn der Waschbalken 2 von der in Fig. 1 gezeigten Grundposition in die Waschposition quer zum Zylinder 4 bewegt wird. In der nicht gezeigten Waschposition drückt das Andrückelement 6 den Waschtuchabschnitt 8 gegen die Mantelfläche 10 des Zylinders 4 und wird dadurch leicht verformt, wie diese durch die gestrichelten Linien 6-2 gezeigt ist. Der Freilaufantrieb 34 ist ähnlich wie eine Ratsche ausgebildet. Sie hat einen Tuchmitnahmehebel 38, welcher bei der Bewegung des Waschbalkens von der Waschposition (nicht gezeigt) in die Grundposition (gezeigt) an einem Anschlag einer Halterung anliegt und dadurch gehindert wird, der Bewegung des Waschbalkens zu folgen. Bei der umgekehrten Bewegung des Waschbalkens von der gezeigten Grundposition in die nicht gezeigte Waschposition gibt der Anschlag den Tuchmitnahmehebel 38 frei, so daß er sich durch eine in ihm enthaltene Feder in die Ausgangsposition zurückbewegen kann, wobei er aufgrund seines Freilaufes bei dieser Rückwärtsbewegung die Schmutztuchspindel 32 nicht dreht.The dirty cloth spindle 32 is provided with a freewheel drive 34, which the dirty cloth spindle 32 then rotates and thereby the wash cloth from the cleaning cloth spindle 26 via a deflection plate 36 and the pressing element 6 transported by a predetermined washcloth section 8 when the Wash bar 2 from the basic position shown in Fig. 1 in the washing position is moved transversely to the cylinder 4. Press in the washing position not shown the pressing element 6 the washcloth section 8 against the lateral surface 10 of the cylinder 4 and is thereby easily deformed as this by the dashed lines 6-2 is shown. The freewheel drive 34 is similar to one Ratchet trained. It has a cloth drive lever 38, which at the Movement of the wash bar from the wash position (not shown) to the Basic position (shown) abuts a stop on a bracket and is prevented from following the movement of the wash bar. In the reverse movement of the wash bar from the basic position shown in the washing position, not shown, the stop gives the cloth take-up lever 38 free, so that it is by a spring contained in it Starting position can move back, due to its free running during this backward movement, the dirty tissue spindle 32 does not rotate.

Die Rückwärtsbewegung oder Freilaufbewegung des Tuchmitnahmehebels 38 wird durch einen Fühler-Hebel 40 begrenzt, der mit einer Rolle 42 versehen ist, die auf dem Waschtuchwickel der Schmutztuchspindel 34 reitet und dadurch die Rücklaufstrecke in Freilaufrichtung des Tuchmitnahmehebels 38 in Abhängigkeit von dem jeweiligen Durchmesser des Schmutztuchwickels bestimmt. Damit wird erreicht, daß unabhängig von den Wickeldurchmessern des Waschtuches auf den beiden Spindeln 32 und 26 jeder Vörschubschritt des Waschtuches ungefähr gleich groß ist.The backward movement or free-running movement of the cloth driving lever 38 is limited by a sensor lever 40 which is provided with a roller 42, which rides on the wipe of the dirty cloth spindle 34 and thereby the return path in the freewheeling direction of the cloth driving lever 38 in Dependence on the respective diameter of the wipe certainly. This ensures that regardless of the winding diameter of the washcloth on the two spindles 32 and 26 each advance step of the Washcloth is about the same size.

Der Waschbalken hat auf jeder Seite zwei Rollen 44 und 45, mit welchen er in Führungen einer ortsfesten Halterung zwischen der Grundposition und der Waschposition fahrbar ist.The wash bar has two rollers 44 and 45 on each side, with which it moves in Guides a fixed bracket between the basic position and the Washing position is mobile.

Ein Sprührohr 50 ist neben dem Bewegungsweg des Waschtuches 28 von der Saubertuchspindel 26 zu dem Andrückelement 6 angeordnet zum Befeuchten des Waschtuches 28 durch einen vorhangartigen Sprühstrahl 52 aus einer sehr großen Vielzahl von sehr kleinen Düsenbohrungen 54 im Sprührohr 50.A spray tube 50 is next to the path of movement of the washcloth 28 from the Clean cloth spindle 26 to the pressing element 6 arranged for moistening of the washcloth 28 by a curtain-like spray 52 from a very large variety of very small nozzle bores 54 in the spray tube 50.

Das Sprührohr 50 ist in einen Kanal 56 der in Fig. 1 oberen äußeren Halteleiste 19 eingesetzt und wird darin von der Halteleiste gegen Durchbiegung abgestützt. Die Querschnittsform des Kanals 56 ist der runden Form des Sprührohres 50 angepasst und erstreckt sich nur teilweise, vorzugsweise um ungefähr 180°, um das Sprührohr 50 herum. Das Sprührohr 50 kann radial in den Kanal 56 eingesetzt sein, ist jedoch gemäß der bevorzugten Ausführungsform axial in den Kanal 56 eingeschoben und aus diesem auch axial herausziehbar.The spray tube 50 is in a channel 56 of the upper outer holding strip in FIG. 1 19 used and is in it by the retaining bar against deflection supported. The cross-sectional shape of the channel 56 is the round shape of the Spray tube 50 adapted and extends only partially, preferably around about 180 ° around the spray tube 50. The spray tube 50 can radially in channel 56 may be used, however, is preferred Embodiment axially inserted into the channel 56 and from this too axially extractable.

Wie Fig. 2 zeigt, ist das Sprührohr 50 vorzugsweise nur an seinen Enden durch je ein Befestigungsmittel 58-1 und 58-2 an der Traverse 20 lösbar befestigt.2 shows, the spray tube 50 is preferably only at its ends one fastener 58-1 and 58-2 releasably attached to the cross member 20.

Die Befestigungsmittel 58-1 und 58-2 sind vorzugsweise spiegelbildlich oder identisch ausgebildete Flüssigkeitsanschlußkörper, in welche die Enden des Sprührohres 50 flüssigkeitsdicht eingesteckt sind. Die Dichtung wird vorzugsweise durch O-Ringe 60 erreicht, welche auf die Rohrenden aufgesteckt sind. Die Flüssigkeitsanschlußkörper 58-1 und 58-2 sind über Flüssigkeitsleitungen 62-1 und 62-2 an eine Flüssigkeitsquelle 64 angeschlossen. Von der Flüssigkeitsquelle 64 wird Flüssigkeit, z.B. Wasser, jeweils dann über die Düsenbohrungen 54 des Sprührohres 50 auf das Waschtuch 28 gesprüht, während oder kurz bevor das Waschtuch 28 um einen Schritt weiter zu dem Andrückelement 6 bewegt wird. Der Sprühstrahl 52 ist vorzugsweise in den Einlaufkeil zwischen diesem Waschtuch 28 und dem Andrückelement 6 gerichtet.The fasteners 58-1 and 58-2 are preferably mirror images or Identical liquid connector body, in which the ends of the Spray tube 50 are inserted liquid-tight. The seal will preferably achieved by O-rings 60 which are on the pipe ends are attached. The fluid connector bodies 58-1 and 58-2 are over Liquid lines 62-1 and 62-2 to a liquid source 64 connected. Liquid, e.g. Water, then in each case via the nozzle bores 54 of the spray tube 50 on the Wash cloth 28 sprayed during or just before the wash cloth 28 by one Step further to the pressing element 6 is moved. The spray jet 52 is preferably in the inlet wedge between this washcloth 28 and the Pressure element 6 directed.

Zum Herausnehmen des Sprührohres 50 braucht lediglich einer der beiden Flüssigkeitsanschlußkörper 58-1 oder 58-2 von der Traverse 20 abgeschraubt zu werden. Danach kann das Sprührohr 6 axial aus dem anderen Flüssigkeitsanschlußkörper 58-1 oder 58-2 und aus dem Kanal 56 der Halteleiste 19 herausgezogen werden. Dies bedeutet einen sehr geringen Montageaufwand. Gemäß einer anderen Ausführungsform könnte der vom einen Rohrende wegzunehmende Flüssigkeitsanschlußkörper 58-1 oder 58-2 an der Traverse 20 auch längsverschiebbar angeordnet sein. Gemäß einer nochmals weiteren Ausführungsform könnten die Flüssigkeitsanschlußkörper 58-1 und 58-2 an der äußeren Halteleiste 19, welche das Sprührohr 50 trägt, lösbar befestigt sein, anstatt an der Traverse 20.Only one of the two is required to remove the spray tube 50 Unscrewed fluid connector body 58-1 or 58-2 from the cross member 20 to become. Thereafter, the spray tube 6 axially from the other Liquid connector body 58-1 or 58-2 and from the channel 56 of the Retaining strip 19 are pulled out. This means a very small one Installation effort. According to another embodiment, that of a liquid connector body 58-1 or 58-2 to be removed from a pipe end can also be arranged on the traverse 20 so as to be longitudinally displaceable. According to one yet another embodiment could be the liquid connector body 58-1 and 58-2 on the outer retaining strip 19, which carries the spray tube 50, be releasably attached instead of to the cross member 20.

Bei allen Ausführungsformen besteht der Vorteil, daß nicht mehr eine Vielzahl von Schrauben über die gesamte Länge des Waschbalkens, dessen Länge der Länge des zu reinigenden Zylinders 4 entspricht, gelöst zu werden braucht, sondern nur noch eine einzige Schraube oder ein anderes Befestigungselement, mit welchem der Flüssigkeitsanschlußkörper an der Traverse 20 (oder der äußeren Halteleiste 19) befestigt ist.In all embodiments there is the advantage that there is no longer a large number of screws along the entire length of the washbar, the length of which Corresponds to the length of the cylinder 4 to be cleaned, needs to be released, but just a single screw or another Fastening element with which the liquid connector body on the Traverse 20 (or the outer retaining strip 19) is attached.

Gemäß anderen Ausführungsformen besteht auch die Möglichkeit, nur eines der beiden Befestigungsmittel 58-1 und 58-2 als Flüssigkeitsanschlußkörper auszubilden, oder keinen der beiden, wenn die Flüssigkeit auf andere Weise dem Sprührohr 50 zugeführt wird, z. B. an einer von den Sprührohrenden entfernten Stelle, z. B. in der Sprührohrmitte.According to other embodiments, there is also the possibility of only one of the two fasteners 58-1 and 58-2 as a liquid connection body to train, or neither, if the liquid is otherwise is supplied to the spray tube 50, e.g. B. at one of the spray tube ends remote location, e.g. B. in the middle of the spray tube.

Das Sprührohr 50 ist an seinem Außenumfang vorzugsweise mit einer Abflachung 66 versehen, gegen die eine Positionierschraube 68 drückt, welche durch die äußere Halteleiste 19, welche das Sprührohr 50 trägt, hindurchgeschraubt ist. Dadurch wird die Drehwinkellage der Sprühdüsenöffnungen 54 relativ zu der Halteleiste 19 definiert. Diese Positionierschraube 68 muß jeweils zurückgeschraubt werden, wenn das Sprührohr 50 nicht radial, sondern axial herausgezogen oder eingesetzt wird aus bzw. in den Kanal 56 der äußeren Halteleiste 19.The spray tube 50 is preferably with a on its outer circumference Provide flat 66 against which a positioning screw 68 presses, which through the outer retaining strip 19, which carries the spray tube 50, is screwed through. As a result, the angular position of the Spray nozzle openings 54 defined relative to the holding bar 19. This Positioning screw 68 must be screwed back each time that Spray tube 50 is not pulled out or inserted radially, but axially from or into the channel 56 of the outer retaining strip 19.

Die eine und/oder andere der beiden äußeren Halteleisten 18 und 19 können zusammen mit der Traverse 20 ein einteiliges Materialstück sein. One and / or the other of the two outer holding strips 18 and 19 can be a one-piece piece of material together with the traverse 20.

Die Fig. 5 und 6 zeigen eine Ausführungsform, bei welcher beide äußeren Halteleisten 18 und 19 zusammen mit der Traverse 20 ein einteiliges Materialstück sind. Ferner zeigen die Fig. 5 und 6 eine Möglichkeit zur lösbaren Befestigung der Innenleiste 12 an der Traverse 20 durch Schnellbefestigungselemente 70 anstatt durch Schrauben 21. Die Schnellbefestigungselemente 70 sind um eine Drehachse 72, die in der Traverse 20 gelagert ist, auf die Innenleiste 12 schwenkbar.5 and 6 show an embodiment in which both outer Holding strips 18 and 19 together with the cross member 20 a one-piece Are piece of material. 5 and 6 also show a possibility for detachable Attachment of the inner bar 12 to the cross member 20 by Quick fasteners 70 instead of screws 21. The Quick fasteners 70 are about an axis of rotation 72 which in the Traverse 20 is mounted, pivotable on the inner bar 12.

Die Innenleiste 12 kann so ausgebildet sein, daß sie die Längsränder 16, 17 des, vorzugsweise kompressibel elastischen, Andrückelements 6 seitlich übergreift und vorzugsweise gegen die Traverse 20 und/oder die äußeren Halteleisten 18, 19 spannt. Hierfür kann die Innenleiste 12 z. B. mit Höhenabstand über der Traverse 20 seitliche Randvorsprünge haben, welche innere Randvorsprünge des Andrückelements 6 übergreifen, oder im Querschnitt gesehen eine Schwalbenschwanzform oder Trapezform haben, wobei die Leistenbreite nahe der Traverse 20 am kleinsten ist und mit zunehmenden Abstand von der Traverse größer wird.The inner bar 12 can be designed such that it has the longitudinal edges 16, 17th of the, preferably compressibly elastic, pressing element 6 laterally engages and preferably against the cross member 20 and / or the outer Holding strips 18, 19 spans. For this, the inner bar 12 z. B. with Height distance above the crossbeam have 20 lateral edge projections, which overlap inner edge projections of the pressing element 6, or in Seen in cross-section have a dovetail shape or trapezoid shape, the width of the last near the traverse 20 is smallest and with increasing distance from the traverse becomes larger.

Claims (10)

  1. Wash bar for printing machine cylinders, containing side portions (22) and a crossbar (20) connected thereto, a pressure element (6) for pressing a wash blanket section (8) of a wash blanket (28) against the peripheral surface of a cylinder (4) to be cleaned, wherein the pressure element (6) is positioned on the crossbar and extends in the longitudinal direction thereof, bearings (24, 30) in the side portions (22) for rotatably mounting a clean-blanket spindle (26) and a dirty-blanket spindle (32) for moving the wash blanket (28) from the clean-blanket spindle via the pressure element (6) onto the dirty-blanket spindle, wherein the pressure element (6) seen in the transverse direction of the crossbar extends arcuately over an inner bar (12), the two longitudinal edges (16, 17) of the pressure element (6) are inserted between the inner bar (12) and outer bars (18, 19), the bars (12, 18, 19) are connected to the crossbar (20), characterised in that the longitudinal edges (16, 17) of the pressure element (6) are seated on the crossbar (20) and each have a lateral edge projection (16-1, 17-1) which is overlapped by the adjacent bar (18, 19), in that the inner bar (12) is releasably fastened to the crossbar (20) with fastening means (21; 70) which are accessible from outside the pressure element (6), so that at them the inner bar is releasable and after release the inner bar (12) can be pulled out of the pressure element (6) in the longitudinal direction of the crossbar.
  2. Wash bar according to claim 1, characterised in that the lateral edge projections (16-1, 17-1) extend outwardly in the transverse direction of the crossbar and are overlapped by the outer bars (18, 19).
  3. Wash bar according to claim 1 or 2, characterised in that the fastening means comprise bolts (21) which extend through the crossbar (20) and are screwed into the inner bar (12).
  4. Wash bar according to claim 1 or 2, characterised in that the fastening means comprise quick-release connecting means (70) by which the inner bar (12) is releasably connected to the crossbar (20).
  5. Wash bar according to any of the preceding claims, characterised in that the crossbar (20) and at least one of the two outer bars (18, 19) together are a single piece of material.
  6. Wash bar according to any of claims 1 to 4, characterised in thar at least one of the two outer bars (18, 19) is fastened to the crossbar (20).
  7. Wash bar according to any of the preceding claims, characterised in thar the longitudinal edges of the pressure element (6) are clamped between the crossbar (20), the inner bar (12) and the outer bars (18, 19).
  8. Wash bar according to any of the preceding claims, characterised in that a spray pipe (50) for moistening the wash blanket (28) is inserted in a channel (56) of one of the two outer bars (18, 19) and supported therein by this outer bar (19) in the transverse direction of the pipe, and in that fastening means (58-1, 58-2) are provided for releasably fastening the spray pipe (50) at both pipe ends.
  9. Wash bar according to claim 8, characterised in that the pipe fastening means (58-1, 58-2) at at least one pipe end comprise a holder in which the pipe end can be inserted axially liquid-tightly and from which it can be taken out axially, in that the pipe fastening means at least of the other pipe end concerned is arranged so that it can be removed in such a way that after removal of this pipe fastening means the pipe can be taken axially out of the holder of one pipe fastening means and after this taking out can also be taken out of the channel of the outer bar, and in that the pipe fastening means at at least one pipe end comprise a liquid inlet for liquid delivery to the pipe end held by them.
  10. Wash bar according to claim 9, characterised in that the holder is a socket-type holder which with the pipe end concerned forms a socket coupling.
EP01905647A 2000-01-08 2001-01-05 Washing bar for a printing press cylinder Expired - Lifetime EP1244551B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10000555 2000-01-08
DE10000555A DE10000555A1 (en) 2000-01-08 2000-01-08 Wash bars for printing press cylinders
PCT/EP2001/000066 WO2001051286A1 (en) 2000-01-08 2001-01-05 Washing bar for a printing press cylinder

Publications (2)

Publication Number Publication Date
EP1244551A1 EP1244551A1 (en) 2002-10-02
EP1244551B1 true EP1244551B1 (en) 2003-07-02

Family

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Application Number Title Priority Date Filing Date
EP01905647A Expired - Lifetime EP1244551B1 (en) 2000-01-08 2001-01-05 Washing bar for a printing press cylinder

Country Status (6)

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US (1) US20030116045A1 (en)
EP (1) EP1244551B1 (en)
JP (1) JP2003523845A (en)
CN (1) CN1394169A (en)
DE (2) DE10000555A1 (en)
WO (1) WO2001051286A1 (en)

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DE10135658B4 (en) * 2001-07-21 2005-03-17 Stranz, Andreas H., Dipl.-Ing.(FH) Method and device for cleaning the surface of a rotating body
DE102006033398B4 (en) * 2006-07-19 2010-01-14 Technotrans Ag Washing device for printing machines
US7726240B2 (en) * 2007-03-20 2010-06-01 Komori Corporation Cleaning apparatus
WO2009034909A1 (en) * 2007-09-12 2009-03-19 Jpe Co., Ltd. Cylinder rinsing device
US20110056039A1 (en) * 2008-04-21 2011-03-10 Baldwin-Japan Ltd. Cylinder cleaning device
CN107364232A (en) * 2017-09-18 2017-11-21 陈银 A kind of offset press non-woven fabrics cleaning device

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US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
JPH0276740A (en) * 1988-09-13 1990-03-16 Nikka Kk Blanket cleaning device and cleaning of printer
DE3909114C2 (en) * 1989-03-20 1994-06-01 Heidelberger Druckmasch Ag Actuator acted upon by pressure medium for placing a washcloth on a washing device of a printing press
JP2900272B2 (en) * 1989-12-27 1999-06-02 大日本印刷株式会社 Offset sheet-fed printing press impression cylinder cleaning device
DE4008159A1 (en) * 1990-03-15 1991-09-19 Heidelberger Druckmasch Ag CLEANING DEVICE FOR A PRINTING MACHINE
DE4209642A1 (en) * 1992-03-25 1993-09-30 Heidelberger Druckmasch Ag Device for the optional cleaning of several cylinders
JP2872559B2 (en) * 1993-08-04 1999-03-17 ニッカ株式会社 Crimping pad for cleaning a printing press cylinder and the like, and method of manufacturing the same
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ATE205783T1 (en) * 1997-11-14 2001-10-15 Elettra Srl DEVICE FOR SUPPLYING LIQUID CLEANING AGENT
IT1306450B1 (en) * 1998-11-03 2001-06-11 Tgc Srl DEVICE FOR THE CLEANING OF THE EXTERNAL SURFACE OF CYLINDERS AND SIMILAR
IT1320895B1 (en) * 2000-02-25 2003-12-10 Marco Corti BAR FOR DISPENSING DETERGENT FLUID MIXTURE IN THE DEVICES FOR THE AUTOMATIC CLEANING OF THE CYLINDERS OF THE PRINTING MACHINES

Also Published As

Publication number Publication date
WO2001051286A1 (en) 2001-07-19
JP2003523845A (en) 2003-08-12
CN1394169A (en) 2003-01-29
DE10000555A1 (en) 2001-07-12
EP1244551A1 (en) 2002-10-02
US20030116045A1 (en) 2003-06-26
DE50100348D1 (en) 2003-08-07

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