EP1264692B1 - Cleaning device for a cylinder of a printing machine - Google Patents

Cleaning device for a cylinder of a printing machine Download PDF

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Publication number
EP1264692B1
EP1264692B1 EP02009631A EP02009631A EP1264692B1 EP 1264692 B1 EP1264692 B1 EP 1264692B1 EP 02009631 A EP02009631 A EP 02009631A EP 02009631 A EP02009631 A EP 02009631A EP 1264692 B1 EP1264692 B1 EP 1264692B1
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EP
European Patent Office
Prior art keywords
printing machine
cam
machine cylinder
cleaning unit
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02009631A
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German (de)
French (fr)
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EP1264692A1 (en
Inventor
Herbert Stanka
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Baldwin Germany GmbH
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Baldwin Germany GmbH
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Publication date
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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
    • B41F35/006—Cleaning arrangements or devices for impression cylinders
    • 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

Definitions

  • the invention relates to a printing machine cylinder cleaning device of a sheet-fed printing press according to the preamble of claim 1.
  • the invention aims to solve the problem of reducing the noise and material wear of the cam-cam follower arrangement, even if the printing press cylinder rotates at higher speeds than the currently common speeds of about 1200 U / h.
  • press cylinders in sheetfed presses are especially the impression cylinder, often referred to only as a printing cylinder.
  • other printing machine cylinders of sheet-fed printing presses which have a gripper device for signatures can also be cleaned.
  • the outer surface of a printing press cylinder can be dry or preferably wet cleaned.
  • a cleaning unit with a wettable washing cloth is for example from the DE 30 05 469 C2 known.
  • a cleaning device for a sheet-fed cylinder is known with a gripper bar, wherein the hiring of the device is effected by a pneumatic cylinder which is supported by a cam-cam follower arrangement.
  • the parking is purely pneumatic.
  • Fig. 1 shows the drawing shows schematically a side view of a printing press cylinder cleaning device according to the invention for a sheet-fed press.
  • the sheet-fed press is shown partially canceled and contains z.
  • B. a plate cylinder 2, from which a printed image is transferred to a blanket cylinder 4, which transmits the printed image on a sheet (not shown) made of paper or other material, which is located on the lateral surface 8 of a counter-pressure cylinder 6 and at its in Rotation direction 11 front end of a gripping device 10 is held.
  • the counter-pressure cylinder 6, hereinafter referred to as generally customary only printing cylinder 6, has at least one such gripping device 10 and can hold one of the number of gripping means corresponding number of sheets on its lateral surface 8 successively.
  • the printing cylinder 6 of Fig. 1 has as an example two diametrically opposed gripping devices 10th
  • Each gripping device 10 includes a circumferential surface 8 interrupting, extending over the entire cylinder length channel 12 (or pit) in which a gripper bar 14 (or a plurality of grippers) is pivotable about an axis of rotation 16 to a gripper nose 18, the front edge a sheet (not shown) next to the channel 12 on the lateral surface 8 to clamp and then release again for passing the sheet to another processing station.
  • the gripper nose 18 projects out of the channel 12 beyond the rear end 20 of the channel 12 with respect to the direction of rotation 11, which has a circumferentially opposite front end 22.
  • a cleaning unit 24 is distanced from the lateral surface 8 in a parking position 24-1.
  • Fig. 1 does not show the above-described printing operation, but the cleaning operation for cleaning the lateral surface 8 of the printing cylinder 2, wherein the cleaning unit 24 in a cleaning position, the lateral surface 8 contacted.
  • the cleaning operation is normally a washing operation, since the lateral surface 6 of the impression cylinder 2 is dampened wet faster than dry.
  • a washing cloth On the lateral surface 8.
  • Serving as a cleaning element 26 washing cloth washing cloth is then transported stepwise in each case if it does not contact the lateral surface 8.
  • the further transport of the washcloth 26 is preferably carried out by a device which transfers the movement of the cleaning unit 24 from the cleaning position shown in Fig. 1 in the parking position 24-1 (or in the reverse direction of movement) on the wash cloth 26.
  • a wet washcloth 26 other cleaning elements may be used, such as a dry cloth or a wet or dry brush or the like.
  • the cleaning element 26 is resiliently applied to the lateral surface 8 (pressed). Therefore, the part of the cleaning unit 24, which carries the cleaning element 26, be brought closer to the lateral surface 8, as required for a weak contact of the lateral surface 8 by the cleaning element 26. In the following, however, to simplify the description, it is done as if the cleaning unit 24 together with the cleaning element 26 is only moved exactly to the lateral surface 8.
  • the adjustment of the cleaning unit 24 between the cleaning position and the parking position 24-1 is effected by at least one double-acting pneumatic actuator 28, the pressure piston 30 is mechanically connected to the cleaning unit 24.
  • the actuator 28 has on one side of the pressure piston 30 a Anstelltikhunt 32 and on the other side a Abstelltikwait 34. They are alternately acted upon by compressed air and vented through a valve assembly 36th
  • the cleaning unit 24 is guided in a holder 38, which is inserted into a printing machine frame (not shown), in which the cylinders 2, 4 and 6 are rotatably mounted.
  • the cleaning unit 24 is not immersed in the channel 12 and then strikes at the rear end 20, and that the cleaning element 26 does not strike the gripper nose 18 of the gripper bar 14, but with Height distance is moved over it (or according to another embodiment, the gripper nose 18 only with slight pressure contacted), so that the cleaning element 26 and the gripper bar 14 do not stick to each other and damage each other.
  • the cleaning unit 24, together with the cleaning element 26 is carried over the gripper nose 18 and over the entire width of the channel 12 in the direction of rotation 11 by a cam follower assembly 40.
  • a close to each gripping device 10 attached to the pressure cylinder 6 control cam 42 in the cylinder circumferential direction has a cleaning element 26 to a larger cylinder radius than the gripper nose 18 lifting and then lowered again length of curve beginning 44 to curve end 46, which preferably approximately equal to or slightly larger is seen as the plug from the front end 22 of the channel 12 to the end of the gripper nose 18 of this same channel 12 opposite to the cylinder rotational direction 11.
  • a control cam element 41 for one of the two gripping devices 10 is shown in FIG. 1, but in reality a control cam element of this type is fastened to the pressure cylinder 6 for each gripping device 10.
  • the control cam 42 has, seen from the direction of rotation of the cylinder 11, one of the curve beginning 44th up to a mountain peak 48 on a curved mountain 50 only with a small slope rising curve slope 52, and one of the mountain peak 48 to the curve end 46, preferably steeper, sloping curve descent 54.
  • At the beginning of the curve 44 or shortly thereafter begins the gentle rise of the curve slope 52.
  • Auf the hilltop 48 is the cleaning element 26 on the gripper nose 18, and after the rear end of the channel 20, the cleaning element 26 is placed again on the then following lateral surface 8 of the printing cylinder 6.
  • FIG. 1 shows the situation in which the cam follower 56 of the control cam has run so far that the washing element 26 again touches the lateral surface 8.
  • the curve descent 54 may drop steeply towards the curve end 46.
  • the valve arrangement 36 is part of a control device 60, which also contains an electronic control part 62 and a rotary encoder 64.
  • the rotary encoder 64 shows the electronic control part 62 rotational angular positions of the pressure cylinder 6, when the actuator 28 is subjected to pneumatic pressure or vented.
  • a rotary encoder 64 actuated by the printing cylinder 6 switches, for example, proximity switches can be used. However, preference is given to an incremental encoder.
  • the control device 60 is designed such that the Anstelltikhunt 32 of the cleaning unit 24 is automatically vented for the curve rise 52, wherein the beginning of the venting of the angular position of the pressure cylinder 6 relative to the cleaning unit 24 is dependent. Furthermore, the control device 60 is designed such that the pneumatic contact pressure of Cleaning unit 24 is automatically rebuilt after said venting for the following on the gripping device 10 portion of the lateral surface 8 of the rotating pressure cylinder 6. The beginning of the venting and / or the beginning of the reconstruction of the pneumatic Anstell horres the actuator 28 to the cleaning unit 24 is preferably variable adjustable.
  • the start of the rebuilding of the pneumatic setting pressure is preferably also dependent on the angular position of the pressure cylinder 6 relative to the cleaning unit 24.
  • Valve assembly 36 includes a positioning valve 66 and downstream therefrom a pressure control valve 68 through which, in the valve positions shown in FIG. 1, the pneumatic pressure of a compressed air source 70 acts via pressure regulator 72 in pitching chamber 32 and thereby cleaning unit 24 from park position 24-1 moved into the cleaning position 24 and there presses the cleaning element 26 to the lateral surface 8 in order to clean them with rotating pressure cylinder 6.
  • the two valves 66 and 68 are preferably 5/2-way valves.
  • the pressure control valve 68 is located in the compressed air path 74 from the positioning valve 66 to Anstelltiksch 32 and divides this into the two path sections 74-1 and 74-2. Further, a compressed air path 76 is formed by the positioning valve 66 to the storage chamber 34 of the actuator 28, which goes past the pressure control valve 68.
  • the Anstelltikhunt 32 is vented by the positioning valve 66, and the Abstelltikwait 34 is connected by the positioning valve 66 to the pressure source 70, so that their pneumatic pressure in the Abstelltikwait 34, the pressure piston 30 and thus also the cleaning unit 34 moves from the drawn in solid lines position in the parking position 34-1 back.
  • an adjustable flow restrictor 78 and 80 may be located, which in each case one in the pressure direction of the compressed air source 70 opening check valve 79 and 81 is connected in parallel.
  • This pressure reduction can be accelerated by additional switching of the positioning valve 66 in the valve position, not shown in FIG. 1, in which compressed air of the compressed air source 70 can pass through the positioning valve and the compressed air path 76 into the storage chamber 34, so that the discharge of the cleaning unit 24 of the control cam 42 is accelerated.
  • the beginning of the above-described venting of the Anstellhunt 32 and the counter-pressure in the Abstelltikwait 34 can be done exactly at the front end of the channel 22 or preferably just before, or after, but before the gripper nose 18. The further this is done in front of the gripper nose 18, the flatter (small pitch angle) may be the curve increase 52.
  • the beginning of the Anstelltikhunt 32 and / or the beginning of the pressurization of the Abstelltikwait 34 for the curve increase 52 is variably adjustable.
  • the cleaning unit 24 with its cleaning element 26 must again be placed on the then following section of the lateral surface 8, preferably with the contact pressure, which is required for the cleaning of the lateral surface 8. Therefore, the Abstelltikwait 34 is vented again by that shown in Fig. 1 Valve position of the positioning valve 66 and the Anstelltikhunt 32 is again supplied with compressed air from the compressed air source 70 by the position shown in Fig. 1 of the positioning valve 66 and the pressure control valve 68 before the cam follower 56 passes from the control cam 42 on the lateral surface 8, ie preferably before the curve end 46, z. B. still on the curve descent 54 or already in the vicinity of the curve tip 48, shortly before this (on this or after this).
  • the exact time and the exact angular position of the pressure cylinder 6 for this process is preferably variably adjustable.
  • the cam follower 56 may be rigidly formed or attached to the washing device 24, for example in the vicinity of the cleaning element or via a support arm. However, the cam follower and such a support arm increase the weight of the cleaning unit 24 and impede their removal and their insertion from or into the holder 38 in the machine frame.
  • the cam follower 56 is provided at a first end 98 of a lever assembly 86, which is mounted on the holder 38 and has a second end 100, which on a cylinder circumference of the impression cylinder 6 facing support surface 104 of the cleaning unit 24 is applied, wherein the two ends 98 and 100 are only movable together in the direction of the printing cylinder 6 or away from it, so that the cleaning unit 24 is moved away by the curve 52 in the direction of the pressure cylinder 6 and through the curve descent 54 in the direction of Pressure cylinder is moved towards.
  • the lever assembly 86 is a toggle lever assembly having two mounted on the holder 38 by a bearing 87 and 88 rocker arms 90 and 92 and an intermediate lever 94, the ends and at one end of the two rocker arm 90 and 92 through Bearings 95 and 96 are rotatably mounted, wherein all bearing axes are arranged parallel to the axis of rotation of the printing cylinder 6.
  • a stop 102 is formed, which abuts in the direction of the pressure cylinder 6 on the support surface 104 of the cleaning unit 24, which faces towards the impression cylinder 6.
  • the cam follower 56 and / or the stop 102 of the lever assembly 86 may be immovable relative to the levers, but are for Avoidance of material wear and to avoid frictional resistance preferably formed by a roller which is rotatably mounted respectively on the respective rocker lever 90 and 92 about an axis of rotation which is parallel to the axis of rotation of the printing cylinder 6.
  • a tension spring 106 is fixed with bias on the one hand to the holder 38 and on the other hand to one of the two mutually projecting Helbelarme the rocker arm 90, 92, preferably on the acting on the cleaning unit 24 lever arm of the second rocker arm 92. This leaves the tension spring 106 when removing and inserting Thus, the weight of the cleaning unit 24 is not increased by the tension spring 106 and it does not interfere with their handling when removing and inserting the cleaning unit 24 from or into the holder 38.
  • the tension spring 106 pulls the cleaning unit 24 away from the pressure cylinder 6 via the toggle lever arrangement 86 when the pneumatic pressure fails in the actuator 28. It thus has a safety function by which damage to the washing device 24 and / or the gripping device 10 by mutual contact in case of failure of the pneumatic system is prevented.
  • the force acting on the cleaning unit 24 by the tension spring 106 is smaller than that by the pneumatic pressure normally generated on the cleaning unit 24 force.
  • the tension spring 106 has as well as the impingement of Abstelltikschhunt 34 of the actuator 28 with compressed air during the venting of Anstelltikschsch before and / or during the emergence of the cam follower 56 on the curve 52 the advantage that thus the cleaning unit 24 on the control cam 42nd acting pressure can be reduced faster.
  • tension spring 106 can also be a compression spring between the lever assembly and the holder 38 are used, the force acts in the same direction on the cleaning unit 24.
  • the arrangement comprising at least one control cam 42, a cam follower 56, a toggle lever arrangement 86 and a spring 106 (tension or compression spring) can be provided on one end face or on both end faces of the pressure cylinder 6.
  • the compressed air path 74 of the Anstelltikhunt 32 or this Anstelltikhunt 32 may be provided with a pressure relief valve 110 or other pressure limiting element which limits the pneumatic pressure therein; in addition to or instead of the pressure control valve 68.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft eine Druckmaschinenzylinder-Reinigungsvorrichtung einer Bogendruckmaschine gemäß dem Oberbegriff von Anspruch 1.The invention relates to a printing machine cylinder cleaning device of a sheet-fed printing press according to the preamble of claim 1.

Durch die Erfindung soll die Aufgabe gelöst werden, die Geräusche und die Materialabnutzung der Steuerkurve-Kurvenfolger-Anordnung zu reduzieren, auch wenn der Druckmaschinenzylinder mit höheren Drehzahlen als den heute üblichen Drehzahlen von ungefähr 1200 U/h rotiert.The invention aims to solve the problem of reducing the noise and material wear of the cam-cam follower arrangement, even if the printing press cylinder rotates at higher speeds than the currently common speeds of about 1200 U / h.

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.

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

Zu reinigende Druckmaschinenzylinder bei Bogendruckmaschinen sind insbesondere der Gegendruckzylinder, häufig auch nur als Druckzylinder bezeichnet. Gereinigt werden können jedoch auch andere Druckmaschinenzylinder von Bogendruckmaschinen, welche eine Greifereinrichtung für Druckbögen haben.To be cleaned press cylinders in sheetfed presses are especially the impression cylinder, often referred to only as a printing cylinder. However, other printing machine cylinders of sheet-fed printing presses which have a gripper device for signatures can also be cleaned.

Mit einer Reinigungseinheit kann die Mantelfläche eines Druckmaschinenzylinders trocken oder vorzugsweise nass gereinigt werden. Eine Reinigungseinheit mit einem befeuchtbaren Waschtuch ist beispielsweise aus der DE 30 05 469 C2 bekannt.With a cleaning unit, the outer surface of a printing press cylinder can be dry or preferably wet cleaned. A cleaning unit with a wettable washing cloth is for example from the DE 30 05 469 C2 known.

Aus der US-A-5 921 182 ist eine Reinigungsvorrichtung für einen Bogendruckzylinder mit einer Greiferleiste bekannt, bei der das Anstellen der Vorrichtung durch einen Pneumatikzylinder erfolgt, der durch eine Steuerkurve-Kurvenfolger-Anordnung unterstützt wird. Das Abstellen erfolgt rein pneumatisch.From the US-A-5,921,182 a cleaning device for a sheet-fed cylinder is known with a gripper bar, wherein the hiring of the device is effected by a pneumatic cylinder which is supported by a cam-cam follower arrangement. The parking is purely pneumatic.

Die Erfindung wird im folgenden mit Bezug auf die beiliegende Zeichnung anhand einer bevorzugten Ausführungsform als Beispiel beschrieben.The invention will be described below with reference to the accompanying drawings with reference to a preferred embodiment as an example.

Fig. 1 zeigt der Zeichnung zeigt schematisch eine Seitenansicht einer Druckmaschinenzylinder-Reinigungsvorrichtung nach der Erfindung für eine Bogendruckmaschine. Die Bogendruckmaschine ist teilweise abgebrochen dargestellt und enthält z. B. einen Plattenzylinder 2, von welchem ein Druckbild auf einen Gummituchzylinder 4 übertragen wird, der das Druckbild auf einen Druckbogen (nicht dargestellt) aus Papier oder aus einem anderen Material überträgt, welcher sich auf der Mantelfläche 8 eines Gegendruckzylinders 6 befindet und an dessen in Drehrichtung 11 vorderen Ende von einer Greifeinrichtung 10 gehalten wird. Der Gegendruckzylinder 6, im folgenden wie allgemein üblich nur Druckzylinder 6 genannt, hat mindestens eine solche Greifeinrichtung 10 und kann eine der Anzahl der Greifeinrichtungen entsprechende Anzahl von Druckbögen auf seiner Mantelfläche 8 nacheinander halten. Der Druckzylinder 6 von Fig. 1 hat als Beispiel zwei diametral einander gegenüberliegende Greifeinrichtungen 10.Fig. 1 shows the drawing shows schematically a side view of a printing press cylinder cleaning device according to the invention for a sheet-fed press. The sheet-fed press is shown partially canceled and contains z. B. a plate cylinder 2, from which a printed image is transferred to a blanket cylinder 4, which transmits the printed image on a sheet (not shown) made of paper or other material, which is located on the lateral surface 8 of a counter-pressure cylinder 6 and at its in Rotation direction 11 front end of a gripping device 10 is held. The counter-pressure cylinder 6, hereinafter referred to as generally customary only printing cylinder 6, has at least one such gripping device 10 and can hold one of the number of gripping means corresponding number of sheets on its lateral surface 8 successively. The printing cylinder 6 of Fig. 1 has as an example two diametrically opposed gripping devices 10th

Jede Greifeinrichtung 10 enthält einen die Mantelfläche 8 unterbrechenden, sich über die gesamte Zylinderlänge erstreckenden Kanal 12 (oder Grube), in welcher eine Greiferleiste 14 (oder eine Vielzahl von Greifern) um eine Drehachse 16 schwenkbar ist, um mit einer Greifernase 18 den vorderen Rand eines Druckbogens (nicht dargestellt) neben dem Kanal 12 auf die Mantelfläche 8 zu klemmen und dann wieder freizugeben zur Weitergabe des Druckbogens an eine weitere Bearbeitungsstation. Die Greifernase 18 ragt aus dem Kanal 12 heraus über das bezüglich der Drehrichtung 11 hintere Ende 20 des Kanals 12, welcher ein in Umfangsrichtung gegenüberliegendes vorderes Ende 22 hat.Each gripping device 10 includes a circumferential surface 8 interrupting, extending over the entire cylinder length channel 12 (or pit) in which a gripper bar 14 (or a plurality of grippers) is pivotable about an axis of rotation 16 to a gripper nose 18, the front edge a sheet (not shown) next to the channel 12 on the lateral surface 8 to clamp and then release again for passing the sheet to another processing station. The gripper nose 18 projects out of the channel 12 beyond the rear end 20 of the channel 12 with respect to the direction of rotation 11, which has a circumferentially opposite front end 22.

Während des vorstehend beschriebenen Druckbetriebes ist eine Reinigungseinheit 24 von der Mantelfläche 8 distanziert in einer Parkposition 24-1.During the printing operation described above, a cleaning unit 24 is distanced from the lateral surface 8 in a parking position 24-1.

Fig. 1 zeigt nicht den vorstehend beschriebenen Druckbetrieb, sondern den Reinigungsbetrieb zum Reinigen der Mantelfläche 8 des Druckzylinders 2, bei welchem die Reinigungseinheit 24 in einer Reinigungsposition die Mantelfläche 8 kontaktiert. Der Reinigungsbetrieb ist normalerweise ein Waschbetrieb, da die Mantelfläche 6 des Druckzylinders 2 feucht schneller reinigbar ist als trocken. Durch die Rotation des Druckzylinders 2 in der Drehrichtung 11 streift ein Reinigungselement 26, z. B. ein Waschtuch, an der Mantelfläche 8. Das als Reinigungselement 26 dienende Waschtuch wird jeweils dann schrittweise weiter transportiert, wenn es die Mantelfläche 8 nicht kontaktiert. Der Weitertransport des Waschtuches 26 erfolgt vorzugsweise durch eine Vorrichtung, welche die Bewegung der Reinigungseinheit 24 von der in Fig. 1 gezeigten Reinigungsposition in die Parkposition 24-1 (oder bei der umgekehrten Bewegungsrichtung) auf das Waschtuch 26 überträgt. Statt eines feuchten Waschtuches 26 können auch andere Reinigungselemente verwendet werden, beispielsweise ein trockenes Tuch oder eine feuchte oder trockene Bürste oder dergleichen.Fig. 1 does not show the above-described printing operation, but the cleaning operation for cleaning the lateral surface 8 of the printing cylinder 2, wherein the cleaning unit 24 in a cleaning position, the lateral surface 8 contacted. The cleaning operation is normally a washing operation, since the lateral surface 6 of the impression cylinder 2 is dampened wet faster than dry. By the rotation of the printing cylinder 2 in the direction of rotation 11 brushes a cleaning element 26, z. As a washing cloth, on the lateral surface 8. Serving as a cleaning element 26 washing cloth is then transported stepwise in each case if it does not contact the lateral surface 8. The further transport of the washcloth 26 is preferably carried out by a device which transfers the movement of the cleaning unit 24 from the cleaning position shown in Fig. 1 in the parking position 24-1 (or in the reverse direction of movement) on the wash cloth 26. Instead of a wet washcloth 26, other cleaning elements may be used, such as a dry cloth or a wet or dry brush or the like.

Das Reinigungselement 26 wird federelastisch an die Mantelfläche 8 angestellt (angedrückt). Deshalb muss der Teil der Reinigungseinheit 24, welcher das Reinigungselement 26 trägt, etwas näher an die Mantelfläche 8 herangeführt werden, als dies für eine schwache Kontaktierung der Mantelfläche 8 durch das Reinigungselement 26 erforderlich ist. Im folgenden wird jedoch zur Vereinfachung der Beschreibung so getan, als ob die Reinigungseinheit 24 zusammen mit dem Reinigungselement 26 nur exakt bis zur Mantelfläche 8 bewegt wird.The cleaning element 26 is resiliently applied to the lateral surface 8 (pressed). Therefore, the part of the cleaning unit 24, which carries the cleaning element 26, be brought closer to the lateral surface 8, as required for a weak contact of the lateral surface 8 by the cleaning element 26. In the following, however, to simplify the description, it is done as if the cleaning unit 24 together with the cleaning element 26 is only moved exactly to the lateral surface 8.

Die Verstellung der Reinigungseinheit 24 zwischen der Reinigungsposition und der Parkposition 24-1 erfolgt durch mindestens ein doppelt wirkendes pneumatisches Stellglied 28, dessen Druckkolben 30 mit der Reinigungseinheit 24 mechanisch verbunden ist. Das Stellglied 28 hat auf der einen Seite des Druckkolbens 30 eine Anstelldruckkammer 32 und auf der anderen Seite eine Abstelldruckkammer 34. Sie sind wechselweise mit Druckluft beaufschlagbar und entlüftbar durch eine Ventilanordnung 36.The adjustment of the cleaning unit 24 between the cleaning position and the parking position 24-1 is effected by at least one double-acting pneumatic actuator 28, the pressure piston 30 is mechanically connected to the cleaning unit 24. The actuator 28 has on one side of the pressure piston 30 a Anstelldruckkammer 32 and on the other side a Abstelldruckkammer 34. They are alternately acted upon by compressed air and vented through a valve assembly 36th

Die Reinigungseinheit 24 ist in einer Halterung 38 geführt, welche in einen Druckmaschinenrahmen (nicht gezeigt) eingesetzt ist, in welchem die Zylinder 2, 4 und 6 drehbar gelagert sind.The cleaning unit 24 is guided in a holder 38, which is inserted into a printing machine frame (not shown), in which the cylinders 2, 4 and 6 are rotatably mounted.

Während des Reinigungsbetriebes, im vorliegenden Falle Waschbetriebes, muss dafür gesorgt werden, dass die Reinigungseinheit 24 nicht in den Kanal 12 eintaucht und dann an dessen hinterem Ende 20 aufschlägt, und dass das Reinigungselement 26 nicht auf die Greifernase 18 der Greiferleiste 14 aufschlägt, sondern mit Höhenabstand darüber hinwegbewegt wird (oder gemäß anderer Ausführungsform die Greifernase 18 nur mit leichtem Druck kontaktiert), damit das Reinigungselement 26 und die Greiferleiste 14 nicht aneinander hängenbleiben und einander beschädigen. Bei der hier beschriebenen bevorzugten Ausführungsform wird davon ausgegangen, dass die Reinigungseinheit 24 zusammen mit dem Reinigungselement 26 über die Greifernase 18 und über die gesamte Breite des Kanals 12 in Drehrichtung 11 hinweggetragen wird durch eine Steuerkurve-Kurvenfolger-Anordnung 40. Gemäß einer anderen Ausführungsform besteht auch die Möglichkeit, die Reinigungseinheit 24 mit dem Waschelement 26 nicht schon vom vorderen Ende 22 des Kanals 12 oder kurz zuvor über den Radius der Mantelfläche 8 hinaus abzuheben, sondern erst kurz vor der Greifernase 18. Dies hat aber den Nachteil, dass der Ausstieg der Steuerkurve um so steiler gemacht werden muss, je kürzer sie ist, und dass die Materialabnutzung und Geräusche durch Aufschlagen des Kurvenfolgers mit zunehmender Kurvensteilheit ebenfalls zunehmen.During the cleaning operation, in the present case washing operation, it must be ensured that the cleaning unit 24 is not immersed in the channel 12 and then strikes at the rear end 20, and that the cleaning element 26 does not strike the gripper nose 18 of the gripper bar 14, but with Height distance is moved over it (or according to another embodiment, the gripper nose 18 only with slight pressure contacted), so that the cleaning element 26 and the gripper bar 14 do not stick to each other and damage each other. In the preferred embodiment described here, it is assumed that the cleaning unit 24, together with the cleaning element 26, is carried over the gripper nose 18 and over the entire width of the channel 12 in the direction of rotation 11 by a cam follower assembly 40. According to another embodiment Also, the possibility of the cleaning unit 24 with the washing element 26 not already from the front end 22 of the channel 12 or shortly before over the radius of the lateral surface 8 addition, but only shortly before the gripper nose 18. This has the disadvantage that the exit of the The steeper the control curve, the shorter it is to be made, and the material wear and noise also increase as the curve slope increases as the curve steepens.

Deshalb hat eine nahe bei jeder Greifeinrichtung 10 am Druckzylinder 6 befestigte Steuerkurve 42 in Zylinderumfangsrichtung eine das Reinigungselement 26 auf einen größeren Zylinderradius als die Greifernase 18 anhebende und dann wieder absenkende Länge von Kurvenanfang 44 bis Kurvenende 46, welche vorzugsweise ungefähr gleich groß wie oder geringfügig größer ist als die Stecke vom vorderen Ende 22 des Kanals 12 bis zum Ende der Greifernase 18 dieses gleichen Kanals 12 entgegen der Zylinderdrehrichtung 11 gesehen. Zur deutlicheren Darstellung ist in Fig. 1 nur ein Steuerkurvenelement 41 für eine der beiden Greifeinrichtungen 10 gezeigt, in Wirklichkeit ist jedoch für jede Greifeinrichtung 10 ein solches Steuerkurvenelement am Druckzylinder 6 befestigt. Die Steuerkurve 42 hat, entgegen der Zylinderdrehrichtung 11 gesehen, einen vom Kurvenanfang 44 bis zu einer Bergspitze 48 auf einem Kurvenberg 50 nur mit kleiner Steilheit ansteigenden Kurvenanstieg 52, und einen von der Bergspitze 48 bis zum Kurvenende 46, vorzugsweise steiler, abfallenden Kurvenabstieg 54. Am Kurvenanfang 44 oder kurz danach beginnt das sachte Ansteigen des Kurvenanstieges 52. Auf der Bergspitze 48 ist das Reinigungselement 26 über der Greifernase 18, und nach dem hinteren Kanalende 20 ist das Reinigungselement 26 wieder auf die danach folgende Mantelfläche 8 des Druckzylinders 6 aufgesetzt. Fig. 1 zeigt die Situation, bei welcher der Kurvenfolger 56 von der Steuerkurve soweit abgelaufen ist, dass das Waschelement 26 wieder auf der Mantelfläche 8 aufsetzt. Der Kurvenabstieg 54 kann zum Kurvenende 46 hin steil abfallen.Therefore, a close to each gripping device 10 attached to the pressure cylinder 6 control cam 42 in the cylinder circumferential direction has a cleaning element 26 to a larger cylinder radius than the gripper nose 18 lifting and then lowered again length of curve beginning 44 to curve end 46, which preferably approximately equal to or slightly larger is seen as the plug from the front end 22 of the channel 12 to the end of the gripper nose 18 of this same channel 12 opposite to the cylinder rotational direction 11. For a clearer illustration, only one control cam element 41 for one of the two gripping devices 10 is shown in FIG. 1, but in reality a control cam element of this type is fastened to the pressure cylinder 6 for each gripping device 10. The control cam 42 has, seen from the direction of rotation of the cylinder 11, one of the curve beginning 44th up to a mountain peak 48 on a curved mountain 50 only with a small slope rising curve slope 52, and one of the mountain peak 48 to the curve end 46, preferably steeper, sloping curve descent 54. At the beginning of the curve 44 or shortly thereafter begins the gentle rise of the curve slope 52. Auf the hilltop 48 is the cleaning element 26 on the gripper nose 18, and after the rear end of the channel 20, the cleaning element 26 is placed again on the then following lateral surface 8 of the printing cylinder 6. FIG. 1 shows the situation in which the cam follower 56 of the control cam has run so far that the washing element 26 again touches the lateral surface 8. The curve descent 54 may drop steeply towards the curve end 46.

Die Ventilanordnung 36 ist Teil einer Steuereinrichtung 60, welche auch einen elektronischen Steuerteil 62 und einen Drehwinkelgeber 64 enthält. Der Drehwinkelgeber 64 zeigt dem elektronischen Steuerteil 62 Drehwinkelstellungen des Druckzylinders 6 an, wann das Stellglied 28 mit pneumatischem Druck beaufschlagt oder entlüftet wird. Als Drehwinkelgeber 64 können vom Druckzylinder 6 betätigte Schalter, beispielsweise Näherungsschalter, verwendet werden. Bevorzugt wird jedoch ein Inkrementalgeber.The valve arrangement 36 is part of a control device 60, which also contains an electronic control part 62 and a rotary encoder 64. The rotary encoder 64 shows the electronic control part 62 rotational angular positions of the pressure cylinder 6, when the actuator 28 is subjected to pneumatic pressure or vented. As a rotary encoder 64 actuated by the printing cylinder 6 switches, for example, proximity switches can be used. However, preference is given to an incremental encoder.

Die Steuereinrichtung 60 ist derart ausgebildet, dass die Anstelldruckkammer 32 der Reinigungseinheit 24 für den Kurvenanstieg 52 automatisch entlüftet wird, wobei der Beginn der Entlüftung von der Drehwinkelstellung des Druckzylinders 6 relativ zur Reinigungseinheit 24 abhängig ist. Ferner ist die Steuereinrichtung 60 derart ausgebildet, dass der pneumatische Anstelldruck der
Reinigungseinheit 24 nach der genannten Entlüftung automatisch wieder aufgebaut wird für den auf die Greifeinrichtung 10 folgenden Abschnitt der Mantelfläche 8 des rotierenden Druckzylinders 6. Der Beginn der Entlüftung und/oder der Beginn des Wiederaufbaus des pneumatischen Anstelldruckes des Stellgliedes 28 auf die Reinigungseinheit 24 ist vorzugsweise variabel einstellbar.The control device 60 is designed such that the Anstelldruckkammer 32 of the cleaning unit 24 is automatically vented for the curve rise 52, wherein the beginning of the venting of the angular position of the pressure cylinder 6 relative to the cleaning unit 24 is dependent. Furthermore, the control device 60 is designed such that the pneumatic contact pressure of
Cleaning unit 24 is automatically rebuilt after said venting for the following on the gripping device 10 portion of the lateral surface 8 of the rotating pressure cylinder 6. The beginning of the venting and / or the beginning of the reconstruction of the pneumatic Anstelldruckes the actuator 28 to the cleaning unit 24 is preferably variable adjustable.

Zusätzlich zum Beginn der Entlüftung ist vorzugsweise auch der Beginn des Wiederaufbaues des pneumatischen Anstelldruckes von der Drehwinkelstellung des Druckzylinders 6 relativ zur Reinigungseinheit 24 abhängig.In addition to the beginning of the venting, the start of the rebuilding of the pneumatic setting pressure is preferably also dependent on the angular position of the pressure cylinder 6 relative to the cleaning unit 24.

Eine bevorzugte Ausführungsform hierfür wird nachfolgend beschrieben.A preferred embodiment of this will be described below.

Die Ventilanordnung 36 enthält ein Positionierventil 66 und stromabwärts davon ein Drucksteuerventil 68, durch welche bei den in Fig. 1 gezeigten Ventilstellungen der pneumatische Druck einer Druckluftquelle 70 über einen Druckregler 72 in der Anstelldruckkammer 32 wirkt und dadurch die Reinigungseinheit 24 von der Parkposition 24-1 in die Reinigungsposition 24 bewegt und dort das Reinigungselement 26 an die Mantelfläche 8 andrückt, um diese bei rotierendem Druckzylinder 6 zu reinigen. Die beiden Ventile 66 und 68 sind vorzugsweise 5/2-Wegeventile.Valve assembly 36 includes a positioning valve 66 and downstream therefrom a pressure control valve 68 through which, in the valve positions shown in FIG. 1, the pneumatic pressure of a compressed air source 70 acts via pressure regulator 72 in pitching chamber 32 and thereby cleaning unit 24 from park position 24-1 moved into the cleaning position 24 and there presses the cleaning element 26 to the lateral surface 8 in order to clean them with rotating pressure cylinder 6. The two valves 66 and 68 are preferably 5/2-way valves.

Das Drucksteuerventil 68 befindet sich im Druckluftweg 74 vom Positionierventil 66 zur Anstelldruckkammer 32 und unterteilt diesen in die beiden Wegabschnitte 74-1 und 74-2. Ferner ist ein Druckluftweg 76 vom Positionierventil 66 zur Abstellkammer 34 des Stellgliedes 28 gebildet, welcher an dem Drucksteuerventil 68 vorbei geht. Durch Umschalten des Positionierventils 66 in seine in Fig. 1 nicht gezeigte Ventilstellung, und Beibehaltung der in Fig. 1 gezeigten Ventilstellung des Drucksteuerventils 68, wird die Anstelldruckkammer 32 durch das Positionierventil 66 entlüftet, und die Abstelldruckkammer 34 wird durch das Positionierventil 66 mit der Druckquelle 70 verbunden, so dass deren pneumatische Druck in der Abstelldruckkammer 34 den Druckkolben 30 und damit auch die Reinigungseinheit 34 von der in ausgezogenen Linien gezeichneten Position in die Parkposition 34-1 zurück bewegt.The pressure control valve 68 is located in the compressed air path 74 from the positioning valve 66 to Anstelldruckkammer 32 and divides this into the two path sections 74-1 and 74-2. Further, a compressed air path 76 is formed by the positioning valve 66 to the storage chamber 34 of the actuator 28, which goes past the pressure control valve 68. By switching the Positioning valve 66 in its not shown in FIG. 1 valve position, and maintaining the valve position of the pressure control valve 68 shown in FIG. 1, the Anstelldruckkammer 32 is vented by the positioning valve 66, and the Abstelldruckkammer 34 is connected by the positioning valve 66 to the pressure source 70, so that their pneumatic pressure in the Abstelldruckkammer 34, the pressure piston 30 and thus also the cleaning unit 34 moves from the drawn in solid lines position in the parking position 34-1 back.

Im Druckluftweg 76 der Abstellkammer 34 und im Druckluftweg 74, vorzugsweise im Wegabschnitt 74-1 zwischen den beiden Ventilen 66 und 68, kann sich jeweils eine einstellbare Strömungsdrossel 78 bzw. 80 befinden, welcher jeweils ein in Druckrichtung der Druckluftquelle 70 öffnendes Rückschlagventil 79 bzw. 81 parallel geschaltet ist. Dadurch kann der Druck der Druckluftquelle 70 jeweils ungedrosselt schnell in den Kammern 32 und 34 aufgebaut werden, und die Entlüftung dieser Kammern 32 und 34 kann durch die Drosseln 78 und 80 variabel eingestellt werden.In the compressed air path 76 of the storage chamber 34 and in the compressed air path 74, preferably in the path section 74-1 between the two valves 66 and 68, respectively an adjustable flow restrictor 78 and 80 may be located, which in each case one in the pressure direction of the compressed air source 70 opening check valve 79 and 81 is connected in parallel. As a result, the pressure of the compressed air source 70 each unthrottled quickly in the chambers 32 and 34 are constructed, and the venting of these chambers 32 and 34 can be adjusted variably by the throttles 78 and 80.

Wenn bei dem in Fig. 1 gezeigten Reinigungsbetrieb die vordere Kante 22 die Nähe des Reinigungselements 26 erreicht, und damit auch der Kurvenfolger 56 sich an oder kurz vor dem Kurvenanfang 44 befindet, wird dies vom elektronischen Steuerteil 62 durch den Drehwinkelgeber 64 erkannt und der elektronische Steuerteil 62 schaltet das Drucksteuerventil 68 von der in Fig. 1 gezeigten Druckaufbaustellung in die nicht gezeigte Ventilstellung um, bei welcher es die Anstellkammer 32 des Stellgliedes 28 mit der Außenatmosphäre 82 verbindet, vorzugsweise über eine einstellbare Strömungsdrossel 84. Durch dieses Entlüften kann die Steuerkurve 32 die Reinigungseinheit 24 über den Radius der Mantelfläche 8 hinaus radial wegdrücken, ohne dass der Pneumatikdruck in der Anstelldruckkammer 32 wesentlich erhöht wird durch dieses Zurückschieben der Reinigungseinheit 24. Im Gegenteil, durch das Entlüften kann der pneumatische Druck konstant gehalten oder reduziert werden. Vorzugsweise wird er hierbei reduziert.If the front edge 22 reaches the vicinity of the cleaning element 26 in the cleaning operation shown in FIG. 1, and thus the cam follower 56 is at or shortly before the beginning of the curve 44, this is detected by the electronic control part 62 by the rotary encoder 64 and the electronic Control part 62 switches the pressure control valve 68 from the pressure build-up position shown in Fig. 1 in the valve position, not shown, in which it connects the Anstellkammer 32 of the actuator 28 with the outer atmosphere 82, preferably via an adjustable flow restrictor 84. By this venting, the control curve 32nd the cleaning unit 24 over the Radius of the lateral surface 8 also push radially away without the pneumatic pressure in the Anstelldruckkammer 32 is substantially increased by this pushing back the cleaning unit 24. On the contrary, by venting the pneumatic pressure can be kept constant or reduced. Preferably, it is reduced here.

Diese Druckreduzierung kann noch beschleunigt werden durch zusätzliches Umschalten des Positionierventils 66 in die in Fig. 1 nicht gezeigte Ventilstellung, in welcher Druckluft der Druckluftquelle 70 über das Positionierventil und den Druckluftweg 76 in die Abstellkammer 34 gelangen kann, so dass die Entlastung der Reinigungseinheit 24 von der Steuerkurve 42 beschleunigt wird.This pressure reduction can be accelerated by additional switching of the positioning valve 66 in the valve position, not shown in FIG. 1, in which compressed air of the compressed air source 70 can pass through the positioning valve and the compressed air path 76 into the storage chamber 34, so that the discharge of the cleaning unit 24 of the control cam 42 is accelerated.

Der Beginn der vorstehend beschriebenen Entlüftung der Anstellkammer 32 und der Gegendruckbeaufschlagung in der Abstelldruckkammer 34 kann genau am vorderen Kanalende 22 oder vorzugsweise kurz davor, oder danach, jedoch vor der Greifernase 18 erfolgen. Je weiter dies vor der Greifernase 18 erfolgt, desto flacher (kleiner Steigungswinkel) kann der Kurvenanstieg 52 sein. Vorzugsweise ist der Beginn der Anstelldruckkammer 32 und/oder der Beginn der Druckbeaufschlagung der Abstelldruckkammer 34 für den Kurvenanstieg 52 variabel einstellbar.The beginning of the above-described venting of the Anstellkammer 32 and the counter-pressure in the Abstelldruckkammer 34 can be done exactly at the front end of the channel 22 or preferably just before, or after, but before the gripper nose 18. The further this is done in front of the gripper nose 18, the flatter (small pitch angle) may be the curve increase 52. Preferably, the beginning of the Anstelldruckkammer 32 and / or the beginning of the pressurization of the Abstelldruckkammer 34 for the curve increase 52 is variably adjustable.

Am Ende der Steuerkurve 42 muss die Reinigungseinheit 24 mit ihrem Reinigungselement 26 wieder auf den dann folgenden Abschnitt der Mantelfläche 8 aufgesetzt werden, vorzugsweise mit dem Anpressdruck, welcher für die Reinigung der Mantelfläche 8 erforderlich ist. Deshalb wird die Abstelldruckkammer 34 wieder entlüftet durch die in Fig. 1 gezeigte Ventilstellung des Positionierventils 66 und die Anstelldruckkammer 32 wird wieder mit Druckluft der Druckluftquelle 70 beaufschlagt durch die in Fig. 1 gezeigte Stellung des Positionierventils 66 und des Drucksteuerventils 68 noch bevor der Kurvenfolger 56 von der Steuerkurve 42 auf die Mantelfläche 8 übergeht, d. h. vorzugsweise bereits vor dem Kurvenende 46, z. B. noch auf dem Kurvenabstieg 54 oder bereits in der Nähe der Kurvenspitze 48, kurz vor dieser (auf dieser oder nach dieser). Der genaue Zeitpunkt und die genaue Winkelstellung des Druckzylinders 6 für diesen Vorgang ist vorzugsweise variabel einstellbar.At the end of the control cam 42, the cleaning unit 24 with its cleaning element 26 must again be placed on the then following section of the lateral surface 8, preferably with the contact pressure, which is required for the cleaning of the lateral surface 8. Therefore, the Abstelldruckkammer 34 is vented again by that shown in Fig. 1 Valve position of the positioning valve 66 and the Anstelldruckkammer 32 is again supplied with compressed air from the compressed air source 70 by the position shown in Fig. 1 of the positioning valve 66 and the pressure control valve 68 before the cam follower 56 passes from the control cam 42 on the lateral surface 8, ie preferably before the curve end 46, z. B. still on the curve descent 54 or already in the vicinity of the curve tip 48, shortly before this (on this or after this). The exact time and the exact angular position of the pressure cylinder 6 for this process is preferably variably adjustable.

Beim Einbringen von Druckluft in die Anstelldruckkammer 32 und die Abstelldruckkammer 34 und bei deren Entlüftung ist zu beachten, dass dieses Belüften und Entlüften Zeit dauert und deshalb gestartet werden sollte, bevor die damit gewünschten Relativpositionen zwischen Reinigungseinheit 24 und Drehwinkelstellung des Druckzylinders 6 erreicht werden. Je höher die Drehzahl des Druckzylinders 6 ist, desto früher müssen die beschriebenen Belüftungen und Entlüftungen zeitlich vor den gewünschten Relativstellungen und Drücken zwischen der Reinigungseinheit 24 und der jeweiligen Drehwinkelposition des Druckzylinders 6 gestartet werden. Dies bedeutet, dass die genauen Zeitpunkte und Winkelstellungen von mehreren Eigenschaften der Druckmaschine abhängig sind. Zusätzlich zur Drehzahl des Druckzylinders 6 beispielsweise auch von der Art der Greifeinrichtung 10 und deren Größe in Zylinderumfangsrichtung und in Richtung radial über den Durchmesser der Mantelfläche 8 hinaus.When introducing compressed air into the Anstelldruckkammer 32 and Abstelldruckkammer 34 and during the venting is to be noted that this venting and venting takes time and should therefore be started before the desired relative positions between cleaning unit 24 and rotational angular position of the printing cylinder 6 are achieved. The higher the rotational speed of the printing cylinder 6, the earlier the aeration and venting described must be started in time before the desired relative positions and pressures between the cleaning unit 24 and the respective rotational angular position of the printing cylinder 6. This means that the exact times and angular positions are dependent on several properties of the printing press. In addition to the rotational speed of the printing cylinder 6, for example, also on the type of gripping device 10 and the size in the cylinder circumferential direction and in the direction radially beyond the diameter of the lateral surface 8 addition.

Der Kurvenfolger 56 kann starr an der Wascheinrichtung 24 gebildet oder befestigt sein, beispielsweise in der Nähe des Reinigungselementes oder über einen Trägerarm. Der Kurvenfolger und ein solcher Trägerarm erhöhen jedoch das Gewicht der Reinigungseinheit 24 und behindern deren Herausnahme und deren Einsetzen aus bzw. in die Halterung 38 im Maschinengestell.The cam follower 56 may be rigidly formed or attached to the washing device 24, for example in the vicinity of the cleaning element or via a support arm. However, the cam follower and such a support arm increase the weight of the cleaning unit 24 and impede their removal and their insertion from or into the holder 38 in the machine frame.

Gemäß der in Fig. 1 gezeigten bevorzugten Ausführungsform ist der Kurvenfolger 56 an einem ersten Ende 98 einer Hebelanordnung 86 vorgesehen, welche an der Halterung 38 gelagert ist und ein zweites Ende 100 aufweist, welches an einer zum Zylinderumfang des Druckzylinders 6 zeigenden Stützfläche 104 der Reinigungseinheit 24 anliegt, wobei die beiden Enden 98 und 100 jeweils nur gemeinsam in Richtung zum Druckzylinder 6 hin oder von diesem weg bewegbar sind, so dass die Reinigungseinheit 24 durch den Kurvenanstieg 52 in Richtung vom Druckzylinder 6 wegbewegt wird und durch den Kurvenabstieg 54 in Richtung zum Druckzylinder hin bewegbar ist.According to the preferred embodiment shown in Fig. 1, the cam follower 56 is provided at a first end 98 of a lever assembly 86, which is mounted on the holder 38 and has a second end 100, which on a cylinder circumference of the impression cylinder 6 facing support surface 104 of the cleaning unit 24 is applied, wherein the two ends 98 and 100 are only movable together in the direction of the printing cylinder 6 or away from it, so that the cleaning unit 24 is moved away by the curve 52 in the direction of the pressure cylinder 6 and through the curve descent 54 in the direction of Pressure cylinder is moved towards.

Gemäß der bevorzugten Ausführungsform ist die Hebelanordnung 86 eine Kniehebelanordnung, welche zwei an der Halterung 38 je durch eine Lagerung 87 bzw. 88 gelagerte Wippenhebel 90 und 92 und einen Zwischenhebel 94 aufweist, dessen Enden und je an einem Ende der beiden Wippenhebel 90 und 92 durch Lagerungen 95 und 96 drehbar gelagert sind, wobei alle Lagerachsen parallel zur Rotationsachse des Druckzylinders 6 angeordnet sind.According to the preferred embodiment, the lever assembly 86 is a toggle lever assembly having two mounted on the holder 38 by a bearing 87 and 88 rocker arms 90 and 92 and an intermediate lever 94, the ends and at one end of the two rocker arm 90 and 92 through Bearings 95 and 96 are rotatably mounted, wherein all bearing axes are arranged parallel to the axis of rotation of the printing cylinder 6.

An dem ersten Ende 98 der Hebelanordnung 86 ist der Kurvenfolger 56 angeordnet und am zweiten Ende 100 der Hebelanordnung ist ein Anschlag 102 gebildet, der in Richtung vom Druckzylinder 6 weg an der Stützfläche 104 der Reinigungseinheit 24 anliegt, welche in Richtung zum Druckzylinder 6 zeigt. Der Kurvenfolger 56 und/oder der Anschlag 102 der Hebelanordnung 86 können relativ zu den Hebeln unbewegliche Elemente sein, sind jedoch zur Vermeidung von Materialabnutzungen und zur Vermeidung von Reibungswiderständen vorzugsweise durch eine Rolle gebildet, die je an dem betreffenden Wippenhebel 90 bzw. 92 drehbar gelagert ist um eine Drehachse, die parallel zur Drehachse des Druckzylinders 6 ist.At the first end 98 of the lever assembly 86 of the cam follower 56 is arranged and at the second end 100 of the lever assembly, a stop 102 is formed, which abuts in the direction of the pressure cylinder 6 on the support surface 104 of the cleaning unit 24, which faces towards the impression cylinder 6. The cam follower 56 and / or the stop 102 of the lever assembly 86 may be immovable relative to the levers, but are for Avoidance of material wear and to avoid frictional resistance preferably formed by a roller which is rotatably mounted respectively on the respective rocker lever 90 and 92 about an axis of rotation which is parallel to the axis of rotation of the printing cylinder 6.

Durch die Verwendung von zwei Wippenhebeln 90 und 92 und des sie gelenkig miteinander verbindenden Zwischenhebels 94 können die beiden Hebelenden 98 und 100 jeweils nur gemeinsam in Richtung zur Steuerkurve 42 bzw. zum Druckzylinder 6 hin oder davon weg bewegt werden.Through the use of two rocker levers 90 and 92 and the pivotally interconnecting intermediate lever 94, the two lever ends 98 and 100 can only be moved together in the direction of the control cam 42 and the pressure cylinder 6 toward or away.

Eine Zugfeder 106 ist mit Vorspannung einerseits an der Halterung 38 und andererseits an einem der beiden voneinander wegragenden Helbelarme der Wippenhebel 90, 92 befestigt, vorzugsweise an dem auf die Reinigungseinheit 24 wirkenden Hebelarm des zweiten Wippenhebels 92. Dadurch verbleibt die Zugfeder 106 beim Herausnehmen und Einsetzen der Reinigungseinheit 24 aus bzw. in die Halterung 38 an dieser Halterung, zusammen mit der Kniehebelanordnung 86. Dadurch wird das Gewicht der Reinigungseinheit 24 durch die Zugfeder 106 nicht erhöht und sie stört nicht deren Handhabung beim Herausnehmen und Einsetzen der Reinigungseinheit 24 aus bzw. in die Halterung 38.A tension spring 106 is fixed with bias on the one hand to the holder 38 and on the other hand to one of the two mutually projecting Helbelarme the rocker arm 90, 92, preferably on the acting on the cleaning unit 24 lever arm of the second rocker arm 92. This leaves the tension spring 106 when removing and inserting Thus, the weight of the cleaning unit 24 is not increased by the tension spring 106 and it does not interfere with their handling when removing and inserting the cleaning unit 24 from or into the holder 38.

Die Zugfeder 106 zieht über die Kniehebelanordnung 86 die Reinigungseinheit 24 vom Druckzylinder 6 weg, wenn im Stellglied 28 der Pneumatikdruck ausfällt. Sie hat damit eine Sicherheitsfunktion, durch welche Beschädigungen der Wascheinrichtung 24 und/oder der Greifeinrichtung 10 durch gegenseitiges kontaktieren bei einem Ausfall der Pneumatik verhindert wird. Die von der Zugfeder 106 auf die Reinigungseinheit 24 wirkende Kraft ist kleiner als die durch den pneumatischen Druck im Normalfall auf die Reinigungseinheit 24 erzeugte Kraft. Die Zugfeder 106 hat ebenso wie das Beaufschlagen der Abstelldruckkammer 34 des Stellgliedes 28 mit Druckluft während der Entlüftung der Anstelldruckkammer 32 vor und/oder während des Auflaufens des Kurvenfolgers 56 auf den Kurvenanstieg 52 den Vorteil, dass damit der von der Reinigungseinheit 24 auf die Steuerkurve 42 wirkende Druck schneller reduziert werden kann.The tension spring 106 pulls the cleaning unit 24 away from the pressure cylinder 6 via the toggle lever arrangement 86 when the pneumatic pressure fails in the actuator 28. It thus has a safety function by which damage to the washing device 24 and / or the gripping device 10 by mutual contact in case of failure of the pneumatic system is prevented. The force acting on the cleaning unit 24 by the tension spring 106 is smaller than that by the pneumatic pressure normally generated on the cleaning unit 24 force. The tension spring 106 has as well as the impingement of Abstelldruckkammer 34 of the actuator 28 with compressed air during the venting of Anstelldruckkammer 32 before and / or during the emergence of the cam follower 56 on the curve 52 the advantage that thus the cleaning unit 24 on the control cam 42nd acting pressure can be reduced faster.

Anstelle einer Zugfeder 106 kann auch eine Druckfeder zwischen der Hebelanordnung und der Halterung 38 eingesetzt werden, deren Kraft in gleicher Richtung auf die Reinigungseinheit 24 wirkt. Die aus mindestens einer Steuerkurve 42, einem Kurvenfolger 56, einer Kniehebelanordnung 86 und einer Feder 106 (Zug- oder Druckfeder) bestehende Anordnung kann auf einer Stirnseite oder auf beiden Stirnseiten des Druckzylinders 6 vorgesehen sein.Instead of a tension spring 106 can also be a compression spring between the lever assembly and the holder 38 are used, the force acts in the same direction on the cleaning unit 24. The arrangement comprising at least one control cam 42, a cam follower 56, a toggle lever arrangement 86 and a spring 106 (tension or compression spring) can be provided on one end face or on both end faces of the pressure cylinder 6.

Gemäß einer anderen Ausführungsform der Erfindung kann der Druckluftweg 74 der Anstelldruckkammer 32 oder diese Anstelldruckkammer 32 mit einem Überdruckventil 110 oder einem anderen Druckbegrenzungselement versehen sein, welches den pneumatischen Druck darin begrenzt; zusätzlich oder anstatt des Drucksteuerventils 68.According to another embodiment of the invention, the compressed air path 74 of the Anstelldruckkammer 32 or this Anstelldruckkammer 32 may be provided with a pressure relief valve 110 or other pressure limiting element which limits the pneumatic pressure therein; in addition to or instead of the pressure control valve 68.

Claims (15)

  1. Printing machine cylinder cleaning device of a sheet-fed printing machine, containing a cleaning unit for cleaning the outer surface (8) of a printing machine cylinder (6), a positioning device, at least one pneumatic actuator (28) with an advancing pressure chamber (32) for the pneumatic advancing and pressing of the cleaning unit onto the cylinder outer surface (8) of the printing machine cylinder (6) to be cleaned, while there is no printed sheet located on the latter, a control-cam/cam-follower arrangement (40) with at least one control cam (42) and with at least one cam follower (56), running on the latter, for supporting the cleaning unit (24), instead of by the cylinder outer surface (8), and at the same time for guiding the cleaning unit (24) over and above at least one printed-sheet gripping means (10), provided on the printing machine cylinder (6), as a function of the rotary-angle position of a printing machine cylinder (6) in relation to the cleaning unit (24), whenever the gripping means (10) of the rotating printing machine cylinder (6) rotates past the cleaning unit (24), wherein a control means (60) is provided, which is designed for the automatic venting of the advancing pressure chamber (32) of the actuator (28) for a cam rise (52) of a control cam (42) of the control-cam/cam-follower arrangement (40), wherein the commencement of venting is dependent on the rotary-angle position of the printing machine cylinder (6) in relation to the cleaning unit (24), and wherein the control means (60) is designed for an automatic rebuild-up of the pneumatic advancing pressure in the advancing pressure chamber (32) of the actuator (28) for that portion of the cylinder outer surface (8) of the rotating printing machine cylinder (6) which follows the gripping means (10).
  2. Printing machine cylinder cleaning device according to Claim 1, characterized in that the commencement of the venting of the pneumatic advancing pressure of the advancing pressure chamber (32) is adjustable with respect to the rotary-angle position of the printing machine cylinder (6) in relation to the cleaning unit (24).
  3. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the commencement of the rebuild-up of the pneumatic advancing pressure in the vented advancing pressure chamber (32) is adjustable.
  4. Printing machine cylinder cleaning device according to Claim 3, characterized in that the commencement of the rebuild-up of the pneumatic advancing pressure is adjustable with respect to the rotary-angle position of the printing machine cylinder in relation to the cleaning unit (24).
  5. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the control means (60) is designed in such a way that the rebuild-up of the pneumatic pressure in the advancing pressure chamber (32) recommences even while the cleaning unit (24) is still thrown onto the control-cam/cam-follower arrangement (40) instead of onto the cylinder outer surface (8).
  6. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the at least one actuator (28) has a retracting pressure chamber (34) for generating a pneumatic pressure which acts in the opposite direction to the pressure capable of being generated pneumatically in the advancing pressure chamber (32).
  7. Printing machine cylinder cleaning device according to Claim 6, characterized in that the venting of the pneumatic pressure in the advancing pressure chamber (32) can be accelerated by a pneumatic pressure being generated in the retracting pressure chamber (34), in order thereby to drive the compressed air out of the advancing pressure chamber (32) while the advancing pressure chamber (32) is switched by the control means (60) to venting, in order to reduce the pressure force of the cleaning unit (24) on the cam rise (52) of the control-cam/cam-follower arrangement (40).
  8. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the rebuild-up of the pneumatic pressure in the advancing pressure chamber (32) of the actuator (28) takes place in the region between an end portion of a cam rise in front of a cam crest tip (48) and the cam end (46).
  9. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the commencement of the venting of the advancing pressure chamber (32) begins before the control-cam/cam follower arrangement (40) takes over the advancing pressure of the cleaning unit (24) from the cylinder outer surface (8).
  10. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that the control-cam/cam-follower arrangement (40) has a cam rise (52), of which the length in the circumferential direction of the printing machine cylinder is approximately equal to the circumferential distance of the cylinder from a front channel end (22) of a gripper channel (12) to the radially highest point of a printed-sheet gripper (18) projecting from the gripper channel (12) of the rear channel end (20).
  11. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that a control cam (42), which in each case cooperates with a cam follower (56) of the cleaning unit (24), is arranged on the printing machine cylinder (6) for each gripping means (10) provided on the latter.
  12. Printing machine cylinder cleaning device according to Claim 11, characterized in that the control cam (42) is arranged, in a circumferential direction of the printing machine cylinder, at least partially in front of or after the gripping means (10) belonging to it, and in that the cam follower (56) is provided at a first end (98) of a lever arrangement (86) which is mounted rotatably on a holding means (38) receiving the cleaning unit (24) and which has a second end (100) which bears on a supporting surface (104) of the cleaning unit (24), said supporting surface pointing toward the cylinder circumference of the printing machine cylinder (6), the two ends (98, 100) being in each case movable only jointly in the direction of the printing machine cylinder (6) or away from the latter.
  13. Printing machine cylinder cleaning device according to Claim 12, characterized in that the lever arrangement (86) is a toggle-lever arrangement which contains two rocker levers (90, 92), mounted rotatably on the holding means (38) by means of rotary bearings (87, 88), and an intermediate lever (94), the ends of which are each mounted rotatably at an adjacent end of the rocker levers each by means of a rotary bearing (95, 96), all bearing axes being arranged parallel to the axis of rotation of the printing machine cylinder (6), and in that those ends of the rocker levers (90, 92) which are remote from the intermediate lever (94) form the two ends (98, 100) of the toggle-lever arrangement.
  14. Printing machine cylinder cleaning device according to one of the preceding claims, characterized in that at least one spring (106) is provided, the spring force of which acts on the cleaning unit (24) in the opposite direction to the pneumatic pressure in the advancing pressure chamber (32) on the cleaning unit (24) and exerts on the latter a lower force than the pneumatic pressure in the advancing pressure chamber (32) during the throwing of the cleaning unit (24) onto the cylinder outer surface (8) or onto the control-cam/cam-follower arrangement (40).
  15. Printing machine cylinder cleaning device according to Claim 14 in combination with Claim 12 or 13, characterized in that the at least one spring (106) engages, on the one hand, on the holding means (38) and, on the other hand, on the lever arrangement (86).
EP02009631A 2001-06-07 2002-04-27 Cleaning device for a cylinder of a printing machine Expired - Lifetime EP1264692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10127442A DE10127442A1 (en) 2001-06-07 2001-06-07 Printing press cylinder cleaning device
DE10127442 2001-06-07

Publications (2)

Publication Number Publication Date
EP1264692A1 EP1264692A1 (en) 2002-12-11
EP1264692B1 true EP1264692B1 (en) 2007-06-13

Family

ID=7687367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009631A Expired - Lifetime EP1264692B1 (en) 2001-06-07 2002-04-27 Cleaning device for a cylinder of a printing machine

Country Status (5)

Country Link
US (1) US20020185028A1 (en)
EP (1) EP1264692B1 (en)
JP (1) JP2003025552A (en)
CN (1) CN1390702A (en)
DE (2) DE10127442A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020393A1 (en) 2008-04-23 2009-10-29 Baldwin Germany Gmbh Printing cylinder cleaning device for printing machine, particularly offset printing machine, has support, and elongated pressing element which is arranged at support behind transport route of cleaning cloth transverse to transport route
DE102009002012A1 (en) 2009-03-31 2010-10-07 Koenig & Bauer Aktiengesellschaft Cleaning device for cleaning cylinder in e.g. sheet-fed rotary printing press, has control unit provided at blanket cylinder and causing cyclic turning of cleaner from pneumatic cylinder depending on rotation of blanket cylinder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327888A1 (en) * 2003-06-20 2005-01-05 Baldwin Germany Gmbh Sheet-fed press washing device and control device therefor
EP1719621B1 (en) * 2005-05-02 2009-07-22 Baldwin Oxy-Dry GmbH Cleaning system for the surfaces of the cylinders of a printing machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
DE3614496A1 (en) * 1986-04-29 1987-11-05 Heidelberger Druckmasch Ag WASHING DEVICE FOR PRINTING CYLINDERS OF PRINTING MACHINES
JPH01122438A (en) * 1987-11-06 1989-05-15 B J Trading Kk Cylinder washing apparatus
JPH02164540A (en) * 1988-12-19 1990-06-25 Nippon Baldwin Kk Cleaning apparatus for impression cylinder of offset press
US5271326A (en) * 1990-03-05 1993-12-21 Komori Corporation Cylinder cleaning mechanism for a printing press
JPH0750203Y2 (en) * 1991-12-18 1995-11-15 ニッカ株式会社 Engaging device for printing cylinder cleaning unit
DE19611125C2 (en) * 1996-03-21 1999-09-02 Heidelberger Druckmasch Ag Cleaning device on rotary printing machines
DE19611126A1 (en) * 1996-03-21 1997-09-25 Heidelberger Druckmasch Ag Cleaning device on rotary printing machines
DE19920230A1 (en) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Cleaning device for the graphics industry
DE19920228A1 (en) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Printing machine cleaning device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020393A1 (en) 2008-04-23 2009-10-29 Baldwin Germany Gmbh Printing cylinder cleaning device for printing machine, particularly offset printing machine, has support, and elongated pressing element which is arranged at support behind transport route of cleaning cloth transverse to transport route
DE102009002012A1 (en) 2009-03-31 2010-10-07 Koenig & Bauer Aktiengesellschaft Cleaning device for cleaning cylinder in e.g. sheet-fed rotary printing press, has control unit provided at blanket cylinder and causing cyclic turning of cleaner from pneumatic cylinder depending on rotation of blanket cylinder
DE102009002012B4 (en) 2009-03-31 2018-10-31 Koenig & Bauer Ag Device for cleaning a cylinder in a printing machine

Also Published As

Publication number Publication date
DE50210300D1 (en) 2007-07-26
US20020185028A1 (en) 2002-12-12
CN1390702A (en) 2003-01-15
JP2003025552A (en) 2003-01-29
EP1264692A1 (en) 2002-12-11
DE10127442A1 (en) 2002-12-12

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