EP1859938B1 - Device for cleaning a cylinder in a printing press - Google Patents

Device for cleaning a cylinder in a printing press Download PDF

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Publication number
EP1859938B1
EP1859938B1 EP07107401A EP07107401A EP1859938B1 EP 1859938 B1 EP1859938 B1 EP 1859938B1 EP 07107401 A EP07107401 A EP 07107401A EP 07107401 A EP07107401 A EP 07107401A EP 1859938 B1 EP1859938 B1 EP 1859938B1
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EP
European Patent Office
Prior art keywords
tube
carrier
channel
brush roller
blade system
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.)
Not-in-force
Application number
EP07107401A
Other languages
German (de)
French (fr)
Other versions
EP1859938A2 (en
EP1859938A3 (en
Inventor
Alexandra Genuth
Thomas Harzbecker
Steffen Siegemund
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1859938A2 publication Critical patent/EP1859938A2/en
Publication of EP1859938A3 publication Critical patent/EP1859938A3/en
Application granted granted Critical
Publication of EP1859938B1 publication Critical patent/EP1859938B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F35/00Cleaning arrangements or devices
    • B41F35/06Cleaning arrangements or devices for offset cylinders
    • 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
    • B41P2235/23Brushes
    • 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
    • B41P2235/26Spraying devices

Definitions

  • the present invention relates to an apparatus for cleaning a cylinder of a printing press.
  • a cleaning apparatus for a printing press cylinder which comprises a brush roller. Furthermore, the cleaning device comprises a first spray tube and a second spray tube for spraying different detergents onto the brush roller and a third spray tube for spraying water onto the brush roller.
  • the third spray tube may be formed as a so-called spray blade and thus fulfill the function of engaging in the bristles of the brush roller scraper.
  • This cleaning device is unfavorable in terms of their maintenance. Due to the design, the inspection and the possibly required cleaning of the spray pipes and the spray doctor can be done only within the printing press, which is cumbersome.
  • the brush roller is arranged in a housing.
  • the housing has a removable rear wall, are arranged on the nozzle rows for the supply of a cleaning liquid and engaging in the brush roller doctor blade.
  • the rear wall is removable from the housing together with the sprayers and the squeegee, so that the sprayers and the squeegee outside the printing press can be checked and cleaned if necessary.
  • the cleaning device comprises an upper cross member in the form of a folded sheet metal strip and a lower cross member in the form of a profiled bar made of folded sheet metal.
  • the rear wall has cover plates on its front sides.
  • a cleaning device which comprises a spray doctor blade - that is, as a liquid supply and as a scraper in double function acting element.
  • This spray bar is supported by a holder, which consists of components screwed together. In manufacturing technology unfavorable because of the multi-piece design of the holder.
  • the invention has for its object to provide a maintenance and production-friendly cleaning device with good cleaning effect.
  • the inventive apparatus for cleaning a cylinder of a printing machine comprises a brush roller, a spray bar system which engages in the brush roller, with a first channel for detergent and a second channel for water, and further comprises a carrier, which is made in one piece as a bent sheet metal part to Carrying the spray doctor system, wherein the spray doctor system is removable together with the carrier from the printing press.
  • An advantage of the device according to the invention is that an inspection and possibly required cleaning of the spray bar system in a comfortable manner outside the printing press are possible. Further advantages are the effective spraying and doctor blade scrubbing by means of the spray doctor system and the resulting rapid and thorough cylinder cleaning.
  • the one-piece design of the carrier advantageous is the one-piece design of the carrier as a bent sheet metal part. Since the carrier is no longer composed of different components, no screws or other fastening means for connecting such components with each other are required. Such screws or other fastening means are at most for attaching the carrier together with the spray bar system to a frame of the machine or a housing of the Device required. Due to the one-piece design of the carrier as a bent sheet metal part, the number of components and the assembly costs decrease.
  • the carrier is permanently connected to the spray doctor system.
  • the carrier may be glued or soldered to the spray bar system.
  • the carrier is welded to the spray bar system.
  • the wearer has cloths. These flaps may form support arms for holding the carrier and / or the spray bar system. These tabs may be cut as tab-shaped projections of the generally substantially rod-shaped carrier into the sheet from which the carrier is made, before the cut-out benefit is bent into the shape desired for the carrier.
  • the cutting can z. B. by means of a water or laser beam quickly and accurately.
  • the flaps may have mounting holes for screws and / or pins, with which the carrier can be fastened in the printing press.
  • the flaps can be angled or folded.
  • the flaps may form substantially L-shaped support arms for the spray bar system.
  • the first channel is formed by a first tube and the second channel by a second tube, which is connected directly to the first tube.
  • the first tube and the second tube are thus not indirectly connected via an intermediate piece, but directly to each other.
  • the first tube and the second tube are permanently connected to each other.
  • the two tubes can be glued or soldered together.
  • the first tube and the second tube are welded directly to each other.
  • there the first tube and the second tube are preferably welded together by means of an uninterrupted weld seam, ie not with a weld point row.
  • the uninterrupted weld is uninterrupted at least over the length of the spray bar system contacted by the brush roller so that the gusset facing the brush roll is sealed between the tubes and no deposits can accumulate in this gusset.
  • first channel and the second channel are formed in one and the same extruded part.
  • This extrusion may have a profile which looks similar to the common profile of the two tubes of the other embodiment welded together or similar to the figure eight.
  • FIG. 1 shows a printing machine 1 for offset printing, which comprises a printing form cylinder 2, a blanket cylinder 3 and a counter-pressure cylinder 4.
  • a printing machine 1 for offset printing which comprises a printing form cylinder 2, a blanket cylinder 3 and a counter-pressure cylinder 4.
  • One of the cylinders, here the blanket cylinder 3, a cleaning device 5 is assigned to wash the cylinder.
  • FIG. 2 shows that the cleaning device 5 comprises a brush roller 6, which rotates in the direction indicated by an arrow. Not shown are the cylinder to be cleaned, to which the brush roller 6 is applied, and a housing having a rear wall and a collecting tray, in which housing the components shown are arranged.
  • a spray bar system 7 comprises a first tube 8 and a second tube 9, which extend parallel to each other and along the axis of rotation of the brush roller 6 along this.
  • the tubes 8, 9 dip each in the bristle of the brush roller 6 and thus act as a scraper for the bristles.
  • the brush roller 6 is in her - with respect to the FIG. 2 underlying viewing direction - fourth quadrant contacted by the spray bar system 7.
  • first tube 8 In the first tube 8 is a first channel 10, which leads the means of the first tube 8 in the brush roller 6 sprayed or blasted detergent.
  • second tube 9 In the second tube 9 is a second channel 11, which conducts the rinse water, which is injected by means of the second tube 9 in the bristle stocking.
  • the channels 10, 11 are closed at the pipe ends by screws, after the removal of a problem-free pipe cleaning z. B. by blowing out the tubes 8, 9 by means of compressed air is possible.
  • the supply of the detergent and the rinse water via pipe manifold 12, which open near the ends of the tubes 8, 9 in this.
  • a weld 20 which extends substantially without interruption over the axial length of the bristle facing of the brush roller 6, the two tubes 8, 9 are welded together.
  • the weld seam 20 is located in the gusset roller 6 facing gusset, which form the two adjoining tubes 8, 9.
  • the weld 20 not only guarantees a stable connection of the tubes 8, 9 with each other, but also prevents deep penetration and settling of dirt, such.
  • the weld 20 does not completely fill said gusset, so that the bristles of the brush roller 6 can spring slightly into the unfilled upper region of the gusset and the two tubes 8, 9 like two squeegees in a row and not just like a single squeegee.
  • the tubes 8, 9 are held by a common carrier 13, which is a different from the said housing, from the rear wall and the collecting tray component.
  • the carrier 13 is a sheet metal bent part, d. h., A cut out of a sheet or punched out and then bent or bent into the required shape component.
  • the sheet thickness of the sheet used for the preparation of the carrier 13 may, for. B. be about 6 millimeters.
  • the carrier 13 includes attachment tabs 14 for screwing the carrier 13 to a crossmember 19 or to another machine part and further comprises support tabs 15 for supporting the second tube 9. The ends of the support tabs 15 abut against the brush roller 6 side facing away from the second tube 9 and are welded to the latter.
  • FIG. 3 shows the brush roller 6 and the spray bar system 7 together with the carrier 13 from the in FIG. 2 with the arrow III indicated direction.
  • These fasteners 18 can be easily solved by the operator to remove the unit formed from the spray bar system 7 and the carrier 13 from the printing press 1, z. B. to clean the pipes 8, 9 or other maintenance work in a comfortable manner outside of the To be able to carry out printing press 1. It is advantageous that when removing and reinserting the unit not two different support the tubes 8, 9 must be uninstalled and installed, but only the one, common carrier 13th
  • FIG. 4 shows the unit consisting of the spray bar system 7 and the carrier 13 in the uninstalled state outside the printing machine 1.
  • the carrier 13 has between the tabs 14, 15 support strips 16.
  • the support strips 16 rest with their upper side on the side facing away from the brush roller 6 bottom of the first tube 8 and are welded to the latter.
  • the fastening tabs 14 are each provided with fastening holes 17 for a pin and a fastening element 18 (cf. FIG. 3 ) forming screw provided.
  • the fastening tabs 14 are folded away at a right angle to the support strips 16, following the side facing away from the brush roller 6.
  • the support tabs 15 are not bent at the bending line 23; Rather, they each have a rectilinear in the fastening tabs 14 merging horizontal arm and a substantially vertical support arm, which faces the second tube 9 upwards.
  • the support tabs 15 are bent or bent at a lying between the horizontal arm and the support arm bending line substantially L-shaped.
  • each support tab 15 is formed by two incisions in the carrier 13, wherein the incisions at least extend to the bending line 23 or even beyond this in the respective fastening tabs 14 inside.
  • the tubes 8, 9 are each provided with nozzles arranged in a row for the detergent or rinse water.
  • the nozzles 22 branch from the respective channel 10 or 11 (see. FIG. 2 ) and are directed to the brush roller 6.
  • FIG. 5 shows a modification of the spray bar system 7, wherein the two tubes 8, 9 are replaced by a single extrusion 21, in which the two parallel channels 10, 11 extend.
  • the strict compression part 21 is made of aluminum and may be coated with a wear-resistant coating, by which the abrasion caused by the bristles is reduced.
  • the profile of the extruded part 21 is somewhat constricted in the lying between the channels 10, 11 area, so that even in the extrusion 21 two successively switched doctor blades are available.
  • the modification is advantageous in terms of large-scale manufacturing and further in terms of avoiding settling contaminants. Since there is no open gap between the two channels 10, 11, no such gap needs to be sealed by means of a weld in order to prevent the settling of the contaminants in the gap.
  • modification corresponding spray bar system 7 can be held by the same carrier 13, as in the FIGS. 2 to 4 D. h., Even in the modification, the sheet metal bending part, which forms the carrier 13 and in the FIGS. 2 to 4 is shown used. This sheet metal part can be z. B. adhered to the extrusion 21 and optionally additionally secured by rivets.

Abstract

The device (5) has a brush roller (6), a spray doctor blade system (7), which is engaged in the brush roller. The blade system has a channel (10) for a washing agent and another channel (11) for water. A carrier is made as a single piece bent part for supporting the blade system. The blade system is removable together with the carrier from the printing machine. The carrier is detachably connected with the blade system. The channels are designed by two pipes (8, 9), where one of the pipes is connected directly with another pipe.

Description

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Reinigen eines Zylinders einer Druckmaschine.The present invention relates to an apparatus for cleaning a cylinder of a printing press.

In EP 1 151 864 B1 ist eine Reinigungsvorrichtung für einen Druckmaschinenzylinder beschrieben, welche eine Bürstenwalze umfasst. Des Weiteren umfasst die Reinigungsvorrichtung ein erstes Sprührohr und ein zweites Sprührohr zum Sprühen verschiedener Waschmittel auf die Bürstenwalze und ein drittes Sprührohr zum Sprühen von Wasser auf die Bürstenwalze. Das dritte Sprührohr kann als eine sogenannte Sprührakel ausgebildet sein und somit die Funktion eines in die Borsten der Bürstenwalze eingreifenden Abstreifers erfüllen. Diese Reinigungsvorrichtung ist hinsichtlich ihrer Wartung ungünstig. Konstruktiv bedingt kann die Inspektion und die gegebenenfalls erforderliche Reinigung der Sprührohre und der Sprührakel nur innerhalb der Druckmaschine erfolgen, was beschwerlich ist.In EP 1 151 864 B1 a cleaning apparatus for a printing press cylinder is described which comprises a brush roller. Furthermore, the cleaning device comprises a first spray tube and a second spray tube for spraying different detergents onto the brush roller and a third spray tube for spraying water onto the brush roller. The third spray tube may be formed as a so-called spray blade and thus fulfill the function of engaging in the bristles of the brush roller scraper. This cleaning device is unfavorable in terms of their maintenance. Due to the design, the inspection and the possibly required cleaning of the spray pipes and the spray doctor can be done only within the printing press, which is cumbersome.

In EP 1 066 965 B1 ist eine Reinigungsvorrichtung beschrieben, deren Bürstenwalze in einem Gehäuse angeordnet ist. Das Gehäuse hat eine abnehmbare Rückwand, an der Düsenreihen für die Zufuhr einer Reinigungsflüssigkeit und eine in die Bürstenwalze eingreifende Rakel angeordnet sind. Anstelle der Düsenreihen können als Sprüheinrichtungen auch Sprührohre vorgesehen sein. Die Rückwand ist zusammen mit den Sprüheinrichtungen und der Rakel von dem Gehäuse abnehmbar, so dass die Sprüheinrichtungen und die Rakel außerhalb der Druckmaschine überprüft und gegebenenfalls gereinigt werden können. Des Weiteren umfasst die Reinigungsvorrichtung eine obere Traverse in Form eines abgekanteten Blechstreifens und eine untere Traverse in Form eines Profilstabes aus abgekantetem Blech. Die Rückwand trägt an ihren Stirnseiten Deckbleche. Hinsichtlich der Reinigungswirkung ungünstig an dieser Reinigungsvorrichtung ist, dass zum Besprühen der Bürstenwalze und zum Abrakeln der Bürstenwalze verschiedene Elemente vorgesehen sind.In EP 1 066 965 B1 a cleaning device is described, the brush roller is arranged in a housing. The housing has a removable rear wall, are arranged on the nozzle rows for the supply of a cleaning liquid and engaging in the brush roller doctor blade. Instead of the rows of nozzles can be provided as sprayers and spray pipes. The rear wall is removable from the housing together with the sprayers and the squeegee, so that the sprayers and the squeegee outside the printing press can be checked and cleaned if necessary. Furthermore, the cleaning device comprises an upper cross member in the form of a folded sheet metal strip and a lower cross member in the form of a profiled bar made of folded sheet metal. The rear wall has cover plates on its front sides. With regard to the cleaning effect on this cleaning device is unfavorable that various elements are provided for spraying the brush roller and for doctor blade off the brush.

In EP 0 388 664 B1 ist eine Reinigungsvorrichtung beschrieben, welche eine Sprührakel - also ein als Flüssigkeitszuführung und als Abstreifer in Doppelfunktion fungierendes Element - umfasst. Diese Sprührakel wird von einem Halter getragen, der aus miteinander verschraubten Bauteilen besteht. In fertigungstechnischer Hinsicht ungünstig daran ist die mehrstückige Ausbildung des Halters.In EP 0 388 664 B1 a cleaning device is described, which comprises a spray doctor blade - that is, as a liquid supply and as a scraper in double function acting element. This spray bar is supported by a holder, which consists of components screwed together. In manufacturing technology unfavorable because of the multi-piece design of the holder.

In EP 0 919 381 A1 ist eine fachübliche Reinigungsvorrichtung offenbart.In EP 0 919 381 A1 a conventional cleaning device is disclosed.

Der Erfindung liegt die Aufgabe zugrunde, eine wartungs- und fertigungsfreundliche Reinigungsvorrichtung mit guter Reinigungswirkung zu schaffen.The invention has for its object to provide a maintenance and production-friendly cleaning device with good cleaning effect.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Die erfindungsgemäße Vorrichtung zum Reinigen eines Zylinders einer Druckmaschine umfasst eine Bürstenwalze, ein Sprührakelsystem, das in die Bürstenwalze eingreift, mit einem ersten Kanal für Waschmittel und einem zweiten Kanal für Wasser, und umfasst weiterhin einen Träger, der einstückig als ein Blechbiegeteil gefertigt ist, zum Tragen des Sprührakelsystems, wobei das Sprührakelsystem zusammen mit dem Träger aus der Druckmaschine entnehmbar ist.This object is achieved by a device having the features of claim 1. The inventive apparatus for cleaning a cylinder of a printing machine comprises a brush roller, a spray bar system which engages in the brush roller, with a first channel for detergent and a second channel for water, and further comprises a carrier, which is made in one piece as a bent sheet metal part to Carrying the spray doctor system, wherein the spray doctor system is removable together with the carrier from the printing press.

Ein Vorteil der erfindungsgemäßen Vorrichtung besteht darin, dass eine Inspektion und eine gegebenenfalls erforderliche Reinigung des Sprührakelsystems auf komfortable Art und Weise außerhalb der Druckmaschine möglich sind. Weitere Vorteile liegen in dem effektiven Besprühen und Abrakeln der Bürstenwalze mittels des Sprührakelsystems und in der daraus resultierenden schnellen und gründlichen Zylinderreinigung. Hinsichtlich der Herstellung der Reinigungsvorrichtung vorteilhaft ist die einstückige Ausbildung des Trägers als ein Blechbiegeteil. Da der Träger nicht mehr aus verschiedenen Bauteilen zusammengesetzt ist, sind auch keine Schrauben oder andere Befestigungsmittel zum Verbinden solcher Bauteile miteinander erforderlich. Solche Schrauben oder andere Befestigungsmittel sind höchstens zum Befestigen des Trägers mitsamt des Sprührakelsystems an einem Gestell der Maschine oder einem Gehäuse der Vorrichtung erforderlich. Durch die einstückige Ausbildung des Trägers als ein Blechbiegeteil verringern sich die Bauteileanzahl und der Montageaufwand.An advantage of the device according to the invention is that an inspection and possibly required cleaning of the spray bar system in a comfortable manner outside the printing press are possible. Further advantages are the effective spraying and doctor blade scrubbing by means of the spray doctor system and the resulting rapid and thorough cylinder cleaning. With regard to the production of the cleaning device advantageous is the one-piece design of the carrier as a bent sheet metal part. Since the carrier is no longer composed of different components, no screws or other fastening means for connecting such components with each other are required. Such screws or other fastening means are at most for attaching the carrier together with the spray bar system to a frame of the machine or a housing of the Device required. Due to the one-piece design of the carrier as a bent sheet metal part, the number of components and the assembly costs decrease.

Vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung sind in den Unteransprüchen genannt.Advantageous developments of the device according to the invention are mentioned in the subclaims.

Bei einer Weiterbildung ist der Träger unlösbar mit dem Sprührakelsystem verbunden. Beispielsweise kann demgemäß der Träger an das Sprührakelsystem angeklebt oder angelötet sein. Vorzugsweise ist der Träger jedoch an das Sprührakelsystem angeschweißt.In a further development, the carrier is permanently connected to the spray doctor system. For example, accordingly, the carrier may be glued or soldered to the spray bar system. Preferably, however, the carrier is welded to the spray bar system.

Bei einer weiteren Weiterbildung weist der Träger Lappen auf. Diese Lappen können Haltearme zum Halten des Trägers und/oder des Sprührakelsystems bilden. Diese Lappen können als zungenförmige Vorsprünge des insgesamt im Wesentlichen stangenförmigen Trägers in das Blech, aus welchem der Träger gefertigt wird, hineingeschnitten werden, bevor der ausgeschnittene Nutzen in die für den Träger gewünschte Form gebogen wird. Das Schneiden kann z. B. mittels eines Wasser- oder Laserstrahles schnell und präzise erfolgen. Die Lappen können Befestigungslöcher für Schrauben und/oder Stifte aufweisen, mit denen der Träger in der Druckmaschine befestigbar ist. Die Lappen können abgewinkelt oder abgekantet sein. Beispielsweise können die Lappen im Wesentlichen L-förmige Stützarme für das Sprührakelsystem bilden.In a further development, the wearer has cloths. These flaps may form support arms for holding the carrier and / or the spray bar system. These tabs may be cut as tab-shaped projections of the generally substantially rod-shaped carrier into the sheet from which the carrier is made, before the cut-out benefit is bent into the shape desired for the carrier. The cutting can z. B. by means of a water or laser beam quickly and accurately. The flaps may have mounting holes for screws and / or pins, with which the carrier can be fastened in the printing press. The flaps can be angled or folded. For example, the flaps may form substantially L-shaped support arms for the spray bar system.

Bei einer weiteren Weiterbildung ist der erste Kanal durch ein erstes Rohr und der zweite Kanal durch ein zweites Rohr gebildet, welches direkt mit dem ersten Rohr verbunden ist. Demgemäß sind das erste Rohr und das zweite Rohr also nicht indirekt über ein Zwischenstück, sondern direkt miteinander verbunden. Vorzugsweise sind das erste Rohr und das zweite Rohr unlösbar miteinander verbunden. Hierzu können die beiden Rohre miteinander verklebt oder verlötet sein. Bevorzugt wird eine Variante, bei welcher das erste Rohr und das zweite Rohr direkt miteinander verschweißt sind. Dabei sind das erste Rohr und das zweite Rohr vorzugsweise mittels einer ununterbrochenen Schweißnaht, also nicht mit einer Schweißpunktreihe, miteinander verschweißt. Die ununterbrochene Schweißnaht ist zumindest über die von der Bürstenwalze kontaktierte Länge des Sprührakelsystems hinweg ununterbrochen, so dass der der Bürstenwalze zugewandte Zwickel zwischen den Rohren abgedichtet wird und sich in diesem Zwickel keine Ablagerungen ansammeln können.In a further development, the first channel is formed by a first tube and the second channel by a second tube, which is connected directly to the first tube. Accordingly, the first tube and the second tube are thus not indirectly connected via an intermediate piece, but directly to each other. Preferably, the first tube and the second tube are permanently connected to each other. For this purpose, the two tubes can be glued or soldered together. Preferred is a variant in which the first tube and the second tube are welded directly to each other. there the first tube and the second tube are preferably welded together by means of an uninterrupted weld seam, ie not with a weld point row. The uninterrupted weld is uninterrupted at least over the length of the spray bar system contacted by the brush roller so that the gusset facing the brush roll is sealed between the tubes and no deposits can accumulate in this gusset.

Bei einer weiteren Weiterbildung sind der erste Kanal und der zweite Kanal in ein und demselben Strangpressteil ausgebildet. Dieses Strangpressteil kann ein Profil haben, welches so ähnlich wie das gemeinsame Profil der zwei miteinander verschweißten Rohre des anderen Ausführungsbeispiels oder so ähnlich wie die Ziffer Acht aussieht.In a further development, the first channel and the second channel are formed in one and the same extruded part. This extrusion may have a profile which looks similar to the common profile of the two tubes of the other embodiment welded together or similar to the figure eight.

Weitere konstruktiv und funktionell vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen und der dazugehörigen Zeichnung.Other constructive and functional advantageous developments of the device according to the invention will become apparent from the following description of exemplary embodiments and the accompanying drawings.

In dieser zeigt:

Figur 1
eine Druckmaschine mit einem Zylinder und einer Reinigungsvorrichtung zum Waschen des Zylinders,
Figur 2
als Bestandteile der Reinigungsvorrichtung aus Figur 1 eine Bürstenwalze und eine Einheit, welche ein Sprührakelsystem und einen Träger des Sprührakelsystems umfasst,
Figur 3
die Einheit aus Figur 2 in der darin angegebenen Perspektive III,
Figur 4
eine dreidimensionale Darstellung der Einheit aus Figur 2 in deren aus der Druckmaschine entnommenen Zustand und
Figur 5
eine alternative Ausbildung des Sprührakelsystems aus Figur 2.
In this shows:
FIG. 1
a printing machine with a cylinder and a cleaning device for washing the cylinder,
FIG. 2
as components of the cleaning device FIG. 1 a brush roller and a unit comprising a spray bar system and a carrier of the spray bar system,
FIG. 3
the unit off FIG. 2 in the perspective III specified therein,
FIG. 4
a three-dimensional representation of the unit FIG. 2 in their removed from the printing press state and
FIG. 5
an alternative embodiment of the spray doctor from FIG. 2 ,

Figur 1 zeigt eine Druckmaschine 1 für den Offsetdruck, welche einen Druckformzylinder 2, einen Gummituchzylinder 3 und einen Gegendruckzylinder 4 umfasst. Einem der Zylinder, hier dem Gummituchzylinder 3, ist eine Reinigungsvorrichtung 5 zum Waschen des Zylinders beigeordnet. FIG. 1 shows a printing machine 1 for offset printing, which comprises a printing form cylinder 2, a blanket cylinder 3 and a counter-pressure cylinder 4. One of the cylinders, here the blanket cylinder 3, a cleaning device 5 is assigned to wash the cylinder.

Figur 2 zeigt, dass die Reinigungsvorrichtung 5 eine Bürstenwalze 6 umfasst, welche sich in die mit einem Pfeil angegebene Richtung dreht. Nicht mit dargestellt sind der zu reinigende Zylinder, an dem die Bürstenwalze 6 dabei anliegt, sowie ein Gehäuse mit einer Rückwand und einer Auffangwanne, in welchem Gehäuse die dargestellten Bauteile angeordnet sind. FIG. 2 shows that the cleaning device 5 comprises a brush roller 6, which rotates in the direction indicated by an arrow. Not shown are the cylinder to be cleaned, to which the brush roller 6 is applied, and a housing having a rear wall and a collecting tray, in which housing the components shown are arranged.

Ein Sprührakelsystem 7 umfasst ein erstes Rohr 8 und ein zweites Rohr 9, die sich parallel miteinander und mit der Rotationsachse der Bürstenwalze 6 entlang dieser erstrecken. Die Rohre 8, 9 tauchen jeweils in den Borstenbesatz der Bürstenwalze 6 ein und fungieren somit als Abstreifer für die Borsten. Die Bürstenwalze 6 wird in ihrem - bezüglich der der Figur 2 zugrunde liegenden Blickrichtung - vierten Quadranten von dem Sprührakelsystem 7 kontaktiert.A spray bar system 7 comprises a first tube 8 and a second tube 9, which extend parallel to each other and along the axis of rotation of the brush roller 6 along this. The tubes 8, 9 dip each in the bristle of the brush roller 6 and thus act as a scraper for the bristles. The brush roller 6 is in her - with respect to the FIG. 2 underlying viewing direction - fourth quadrant contacted by the spray bar system 7.

In dem ersten Rohr 8 befindet sich ein erster Kanal 10, welcher das mittels des ersten Rohres 8 in die Bürstenwalze 6 gesprühte oder gestrahlte Waschmittel führt. In dem zweiten Rohr 9 befindet sich ein zweiter Kanal 11, der das Spülwasser leitet, das mittels des zweiten Rohres 9 in den Borstenbesatz injiziert wird. Die Kanäle 10, 11 sind an den Rohrenden durch Schrauben verschlossen, nach deren Entfernung eine problemlose Rohrreinigung z. B. durch Ausblasen der Rohre 8, 9 mittels Druckluft möglich ist. Die Zuführung des Waschmittels und des Spülwassers erfolgt über Rohrkrümmer 12, die nahe an den Enden der Rohre 8, 9 in diese einmünden.In the first tube 8 is a first channel 10, which leads the means of the first tube 8 in the brush roller 6 sprayed or blasted detergent. In the second tube 9 is a second channel 11, which conducts the rinse water, which is injected by means of the second tube 9 in the bristle stocking. The channels 10, 11 are closed at the pipe ends by screws, after the removal of a problem-free pipe cleaning z. B. by blowing out the tubes 8, 9 by means of compressed air is possible. The supply of the detergent and the rinse water via pipe manifold 12, which open near the ends of the tubes 8, 9 in this.

Über eine Schweißnaht 20, welche sich im wesentlichen ohne Unterbrechung über die axiale Länge des Borstenbesatzes der Bürstenwalze 6 hinzieht, sind die beiden Rohre 8, 9 aneinander angeschweißt. Die Schweißnaht 20 befindet sich in dem der Bürstenwalze 6 zugewandten Zwickel, welchen die beiden aneinander anliegenden Rohre 8, 9 bilden. Die Schweißnaht 20 garantiert nicht nur eine stabile Verbindung der Rohre 8, 9 miteinander, sondern verhindert auch ein tiefes Eindringen und Festsetzen von Verschmutzungen, wie z. B. Druckfarberesten, in dem Spalt zwischen den beiden Rohren 8, 9. Die Schweißnaht 20 füllt aber besagten Zwickel nicht vollständig aus, so dass die Borsten der Bürstenwalze 6 in den unausgefüllten oberen Bereich des Zwickels ein wenig hineinfedern können und die beiden Rohre 8, 9 wie zwei hintereinandergeschaltete Rakeln und nicht nur wie eine einzige Rakel wirken.Via a weld 20, which extends substantially without interruption over the axial length of the bristle facing of the brush roller 6, the two tubes 8, 9 are welded together. The weld seam 20 is located in the gusset roller 6 facing gusset, which form the two adjoining tubes 8, 9. The weld 20 not only guarantees a stable connection of the tubes 8, 9 with each other, but also prevents deep penetration and settling of dirt, such. However, the weld 20 does not completely fill said gusset, so that the bristles of the brush roller 6 can spring slightly into the unfilled upper region of the gusset and the two tubes 8, 9 like two squeegees in a row and not just like a single squeegee.

Die Rohre 8, 9 werden von einem gemeinsamen Träger 13 gehalten, der ein von dem erwähnten Gehäuse, von dessen Rückwand und dessen Auffangwanne verschiedenes Bauteil ist. Der Träger 13 ist ein Blechbiegeteil, d. h., ein aus einem Blech ausgeschnittenes oder ausgestanztes und danach in die erforderliche Form gebogenes oder abgekantetes Bauteil. Die Blechdicke des zur Herstellung des Trägers 13 verwendeten Bleches kann z. B. ca. 6 Millimeter betragen. Der Träger 13 umfasst Befestigungslappen 14 zum Anschrauben des Trägers 13 an eine Traverse 19 oder an ein anderes Maschinenteil und umfasst weiterhin Stützlappen 15 zum Abstützen des zweiten Rohres 9. Die Enden der Stützlappen 15 liegen an der der Bürstenwalze 6 abgewandten Seite des zweiten Rohres 9 an und sind an letzteres angeschweißt.The tubes 8, 9 are held by a common carrier 13, which is a different from the said housing, from the rear wall and the collecting tray component. The carrier 13 is a sheet metal bent part, d. h., A cut out of a sheet or punched out and then bent or bent into the required shape component. The sheet thickness of the sheet used for the preparation of the carrier 13 may, for. B. be about 6 millimeters. The carrier 13 includes attachment tabs 14 for screwing the carrier 13 to a crossmember 19 or to another machine part and further comprises support tabs 15 for supporting the second tube 9. The ends of the support tabs 15 abut against the brush roller 6 side facing away from the second tube 9 and are welded to the latter.

Figur 3 zeigt die Bürstenwalze 6 und das Sprührakelsystem 7 mitsamt des Trägers 13 aus der in Figur 2 mit dem Pfeil III angegebenen Blickrichtung. Zu erkennen sind Befestigungselemente 18, z. B. Schrauben, mit denen der Träger 13 an der Traverse 19 lösbar angebracht ist. Diese Befestigungselemente 18 lassen sich vom Bediener einfach lösen, um die aus dem Sprührakelsystem 7 und dem Träger 13 gebildete Einheit aus der Druckmaschine 1 entnehmen zu können, z. B. um die Rohre 8, 9 zu säubern oder um andere Wartungsarbeiten daran auf bequeme Art und Weise außerhalb der Druckmaschine 1 durchführen zu können. Vorteilhaft ist, dass beim Entnehmen und Wiedereinsetzen der Einheit nicht zwei verschiedene Träger der Rohre 8, 9 deinstalliert und installiert werden müssen, sondern nur der eine, gemeinsame Träger 13. FIG. 3 shows the brush roller 6 and the spray bar system 7 together with the carrier 13 from the in FIG. 2 with the arrow III indicated direction. To recognize are fasteners 18, z. B. screws, with which the carrier 13 is detachably attached to the cross member 19. These fasteners 18 can be easily solved by the operator to remove the unit formed from the spray bar system 7 and the carrier 13 from the printing press 1, z. B. to clean the pipes 8, 9 or other maintenance work in a comfortable manner outside of the To be able to carry out printing press 1. It is advantageous that when removing and reinserting the unit not two different support the tubes 8, 9 must be uninstalled and installed, but only the one, common carrier 13th

Figur 4 zeigt die aus dem Sprührakelsystem 7 und dem Träger 13 bestehende Einheit im deinstallierten Zustand außerhalb der Druckmaschine 1. Der Träger 13 weist zwischen den Lappen 14, 15 Stützleisten 16 auf. Die Stützleisten 16 liegen mit ihrer Oberseite an der der Bürstenwalze 6 abgewandten Unterseite des ersten Rohres 8 an und sind an letzteres angeschweißt. Die Befestigungslappen 14 sind jeweils mit Befestigungslöchern 17 für einen Stift und eine das Befestigungselement 18 (vgl. Figur 3) bildende Schraube versehen. An Biegelinien 23 sind die Befestigungslappen 14 nach der von der Bürstenwalze 6 weg weisenden Seite hin im Wesentlichen im rechten Winkel zu den Stützleisten 16 abgekantet. Die Stützlappen 15 sind nicht an der Biegelinie 23 abgekantet; sie weisen vielmehr jeweils einen geradlinig in den Befestigungslappen 14 übergehenden Horizontalarm und einen im Wesentlichen vertikalen Stützarm auf, der zum zweiten Rohr 9 nach oben weist. FIG. 4 shows the unit consisting of the spray bar system 7 and the carrier 13 in the uninstalled state outside the printing machine 1. The carrier 13 has between the tabs 14, 15 support strips 16. The support strips 16 rest with their upper side on the side facing away from the brush roller 6 bottom of the first tube 8 and are welded to the latter. The fastening tabs 14 are each provided with fastening holes 17 for a pin and a fastening element 18 (cf. FIG. 3 ) forming screw provided. At bending lines 23, the fastening tabs 14 are folded away at a right angle to the support strips 16, following the side facing away from the brush roller 6. The support tabs 15 are not bent at the bending line 23; Rather, they each have a rectilinear in the fastening tabs 14 merging horizontal arm and a substantially vertical support arm, which faces the second tube 9 upwards.

Wie dies am besten in Figur 2 zu sehen ist, sind die Stützlappen 15 an einer zwischen dem Horizontalarm und dem Stützarm liegenden Biegelinie im Wesentlichen L-förmig umgebogen oder abgekantet.As this is best in FIG. 2 can be seen, the support tabs 15 are bent or bent at a lying between the horizontal arm and the support arm bending line substantially L-shaped.

Aus Figur 4 ist ersichtlich, dass jeder Stützlappen 15 durch zwei Einschnitte in den Träger 13 gebildet ist, wobei sich die Einschnitte zumindest bis zur Biegelinie 23 oder sogar über diese hinaus in den jeweiligen Befestigungslappen 14 hinein erstrecken. Außerdem ist erkennbar, dass die Rohre 8, 9 jeweils mit in einer Reihe angeordneten Düsen für das Waschmittel bzw. Spülwasser versehen sind. Die Düsen 22 zweigen von dem jeweiligen Kanal 10 oder 11 (vgl. Figur 2) ab und sind auf die Bürstenwalze 6 gerichtet.Out FIG. 4 It can be seen that each support tab 15 is formed by two incisions in the carrier 13, wherein the incisions at least extend to the bending line 23 or even beyond this in the respective fastening tabs 14 inside. In addition, it can be seen that the tubes 8, 9 are each provided with nozzles arranged in a row for the detergent or rinse water. The nozzles 22 branch from the respective channel 10 or 11 (see. FIG. 2 ) and are directed to the brush roller 6.

Figur 5 zeigt eine Modifikation des Sprührakelsystems 7, wobei die beiden Rohre 8, 9 durch ein einziges Strangpressteil 21 ersetzt sind, in welchem die beiden parallelen Kanäle 10, 11 verlaufen. Das Strengpressteil 21 besteht aus Aluminium und kann mit einer verschleißfesten Beschichtung beschichtet sein, durch welche die von den Borsten verursachte Abrasion reduziert wird. Das Profil des Strangpressteiles 21 ist im zwischen den Kanälen 10, 11 liegenden Bereich etwas eingeschnürt, so dass auch bei dem Strangpressteil 21 zwei hintereinandergeschaltete Rakeln vorhanden sind. FIG. 5 shows a modification of the spray bar system 7, wherein the two tubes 8, 9 are replaced by a single extrusion 21, in which the two parallel channels 10, 11 extend. The strict compression part 21 is made of aluminum and may be coated with a wear-resistant coating, by which the abrasion caused by the bristles is reduced. The profile of the extruded part 21 is somewhat constricted in the lying between the channels 10, 11 area, so that even in the extrusion 21 two successively switched doctor blades are available.

Die Modifikation ist hinsichtlich einer in großen Stückzahlen erfolgenden Fertigung vorteilhaft und weiterhin hinsichtlich der Vermeidung sich festsetzender Verschmutzungen. Da zwischen den beiden Kanälen 10, 11 kein offener Spalt vorhanden ist, braucht auch kein solcher Spalt mittels einer Schweißnaht abgedichtet werden, um das Festsetzen der Verschmutzungen in dem Spalt zu verhindern.The modification is advantageous in terms of large-scale manufacturing and further in terms of avoiding settling contaminants. Since there is no open gap between the two channels 10, 11, no such gap needs to be sealed by means of a weld in order to prevent the settling of the contaminants in the gap.

Das der in Figur 5 gezeigten Modifikation entsprechende Sprührakelsystem 7 kann von demselben Träger 13 gehalten werden, wie das in den Figuren 2 bis 4 gezeigte Sprührakelsystem 7. D. h., auch bei der Modifikation kann das Blechbiegeteil, welches den Träger 13 bildet und in den Figuren 2 bis 4 gezeigt ist, verwendet werden. Dieses Blechbiegeteil kann z. B. an das Strangpressteil 21 angeklebt und daran gegebenenfalls zusätzlich durch Niete gesichert werden.The in FIG. 5 As shown modification corresponding spray bar system 7 can be held by the same carrier 13, as in the FIGS. 2 to 4 D. h., Even in the modification, the sheet metal bending part, which forms the carrier 13 and in the FIGS. 2 to 4 is shown used. This sheet metal part can be z. B. adhered to the extrusion 21 and optionally additionally secured by rivets.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Druckmaschinepress
22
DruckformzylinderPlate cylinder
33
GummituchzylinderBlanket cylinder
44
GegendruckzylinderImpression cylinder
55
Reinigungsvorrichtungcleaning device
66
Bürstenwalzebrush roll
77
SprührakelsystemSprührakelsystem
88th
erstes Rohrfirst pipe
99
zweites Rohrsecond pipe
1010
erster Kanalfirst channel
1111
zweiter Kanalsecond channel
1212
Rohrkrümmerelbow
1313
Trägercarrier
1414
Befestigungslappenfastening tabs
1515
Stützlappensupport tab
1616
Stützleistesupporting strip
1717
Befestigungslochmounting hole
1818
Befestigungselementfastener
1919
Traversetraverse
2020
SchweißnahtWeld
2121
StrangpressteilExtrusion
2222
Düsejet
2323
Biegelinieelastic line

Claims (10)

  1. Device for cleaning a cylinder (3) of a printing press (1) comprising
    - a brush roller (6),
    - a spray blade system (7) meshing with the brush roller (6) and including a first channel (10) for a cleaning agent and a second channel (11) for water, and
    - a support (13) manufactured as a flexible one-piece sheet metal part for supporting the spray blade system (7), the spray blade system (7) being removable from the printing press (1) together with the support (13).
  2. Device according to Claim 1,
    wherein the support (13) is inseparably connected to the spray blade system (7).
  3. Device according to Claim 2,
    wherein the support (13) is welded to the spray blade system (7).
  4. Device according to one of Claims 1 to 3,
    wherein the support (13) includes flaps (14, 15).
  5. Device according to Claim 4,
    wherein the flaps (14) have attachment holes (17).
  6. Device according to Claim 4 or 5,
    wherein the flaps (15) are angled.
  7. Device according to one of Claims 1 to 6,
    wherein the first channel (10) is formed by a first tube (8) and the second channel (11) is formed by a second tube (9) directly connected to the first tube (8).
  8. Device according to Claim 7,
    wherein the first tube (8) and the second tube (9) are directly welded to each other.
  9. Device according to Claim 8,
    wherein the first tube (8) and the second tube (9) are welded to each other by means of a continuous welding seam (20).
  10. Device according to one of Claims 1 to 6,
    wherein the first channel (10) and the second channel (11) are formed in one and the same extrusion part (21).
EP07107401A 2006-05-22 2007-05-03 Device for cleaning a cylinder in a printing press Not-in-force EP1859938B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006023896A DE102006023896A1 (en) 2006-05-22 2006-05-22 Device for cleaning a cylinder of a printing machine

Publications (3)

Publication Number Publication Date
EP1859938A2 EP1859938A2 (en) 2007-11-28
EP1859938A3 EP1859938A3 (en) 2008-01-16
EP1859938B1 true EP1859938B1 (en) 2010-12-15

Family

ID=38332458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07107401A Not-in-force EP1859938B1 (en) 2006-05-22 2007-05-03 Device for cleaning a cylinder in a printing press

Country Status (3)

Country Link
EP (1) EP1859938B1 (en)
AT (1) ATE491575T1 (en)
DE (2) DE102006023896A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896894B (en) * 2012-10-15 2015-08-12 北京印刷学院 A kind of spraying mechanism for blanket cylinder cleaning device
CN104553308B (en) * 2015-01-23 2017-03-15 深圳市力嘉创意文化产业发展有限公司 A kind of cleaning method of flexographic plate and device
CN111097619B (en) * 2020-01-18 2020-11-03 安徽持家汉家居工艺品有限公司 Equipment for spraying and printing characters on surface of pipe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909819A1 (en) * 1989-03-24 1990-09-27 Heidelberger Druckmasch Ag WASHING DEVICE FOR CLEANING A CYLINDER OF A PRINTING MACHINE
DE9415155U1 (en) * 1994-09-19 1994-11-03 Su Wu Shuan Device for scraping a plate cylinder of an offset printing machine
DE29708470U1 (en) * 1997-05-13 1997-07-10 Roland Man Druckmasch Cleaning device for a cylinder or roller of a printing machine
DE19753231A1 (en) * 1997-12-01 1999-06-02 Heidelberger Druckmasch Ag Device for cleaning a cylinder in a printing press
DE19931305A1 (en) * 1999-07-07 2001-01-18 Roland Man Druckmasch Cleaning device for the printing unit of a rotary printing press
DE10040950B4 (en) * 1999-09-15 2009-04-02 Heidelberger Druckmaschinen Ag press
DE20008043U1 (en) * 2000-05-04 2000-07-13 Roland Man Druckmasch Cleaning device for a cylinder of a printing machine
DE10346659B3 (en) * 2003-09-10 2004-11-18 Janko Despot Cleaning device for cylindrical surface in printing press using rotating brush roller with oval cross-section bristle set having bristles of high elasticity and lesser elasticity in alternating zones in peripheral direction
DE102004033771A1 (en) * 2004-03-16 2005-10-13 Man Roland Druckmaschinen Ag Printing press has a turning station followed by a further print cylinder with independently-operated washing assembly
GB2421216A (en) * 2004-12-16 2006-06-21 G A P Printing Sales Ltd Apparatus for washing a blanket in an offset printing press

Also Published As

Publication number Publication date
EP1859938A2 (en) 2007-11-28
EP1859938A3 (en) 2008-01-16
DE502007005926D1 (en) 2011-01-27
DE102006023896A1 (en) 2007-11-29
ATE491575T1 (en) 2011-01-15

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