EP0564795B1 - Device for cleaning ink carrying surfaces in printing units - Google Patents

Device for cleaning ink carrying surfaces in printing units Download PDF

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Publication number
EP0564795B1
EP0564795B1 EP93102617A EP93102617A EP0564795B1 EP 0564795 B1 EP0564795 B1 EP 0564795B1 EP 93102617 A EP93102617 A EP 93102617A EP 93102617 A EP93102617 A EP 93102617A EP 0564795 B1 EP0564795 B1 EP 0564795B1
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EP
European Patent Office
Prior art keywords
cleaning
cleaning unit
ink
carrying surfaces
surfaces according
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
EP93102617A
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German (de)
French (fr)
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EP0564795A1 (en
Inventor
Gerhard Görl
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
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Heidelberger Druckmaschinen AG
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Publication of EP0564795A1 publication Critical patent/EP0564795A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices

Definitions

  • the invention relates to a device for cleaning ink-carrying surfaces in printing units of rotary printing presses.
  • washing devices from DE 39 09 114 A1 and from DE 39 09 119 A1 of a well-known printing machine manufacturer
  • the pressure elements consist of an elastic part accommodated in a U-profile, which brings a washing cloth into contact with a color-carrying surface when compressed air is applied.
  • a disadvantage of these washing devices is the fact that the width of the washcloth to be used is determined by the width of the pressing element. If the washing devices are to be used on printing machines with wider surfaces to be cleaned, extensive modifications must be carried out. Furthermore, it is perceived as cumbersome to interrupt a supply line each time a washing device designed as a slide-in element is replaced and to restore it after replacement.
  • a device for washing a printing press cylinder in which a washing cloth is unwound from a supply roll, guided over a pressure element that can be set on the printing unit cylinder and is wound up by a winding roll.
  • the positioning of the pressure element on the printing unit cylinder and the transport of the washcloth are carried out in this device by separate actuating devices, one The washcloth is only transported when the pressure element is switched off from the printing press cylinder.
  • the object of the invention is to optimize a washing device in such a way that a compact design and rapid interchangeability are achieved.
  • the object is achieved in that a transport of a coating and a positioning movement of a pivotable deflecting element on a color-guiding surface of a transfer cylinder are simultaneously coupled Drive elements are carried out.
  • the advantages associated with this solution are diverse. On the one hand, the manufacturing costs can be significantly reduced by reducing the number of components used. On the other hand, the cumbersome and time-consuming loosening of a pneumatic supply line when removing and installing a retractable washing device will no longer be necessary.
  • the combination of the coating transport and employment function makes it possible to dispense with components, which can save space.
  • the pivotable deflection element is provided with an elevator made of resilient material which, when the cover is turned on, allows the cover to nestle in a concave configuration and thus enlarges the cleaning sector on the transfer cylinder.
  • the ends of the Deflection elements are included in swivel levers. Bearing arrangements for the deflecting element and the take-up spool, which are designed as one-way clutches, are accommodated on the drive-side swivel lever. In this way it is achieved that the deflecting element and the take-up spool only rotate in the transport direction of the coating when the coating is being transported.
  • side parts which are connected to one another by at least one cross member, take up spring locking bolts with which the side parts which can be received in their lower regions with rollers in grooves in rails can be locked in their insertion position.
  • the ends of the supply spool and the take-up spool facing a first side part are received in locking bolts. If the supply spool is exhausted and the take-up spool is full, you can simply unhook it by pulling the locking bolts. Then new coils can be hung up; or if it is intended to be used in a larger-format printing press - after exchanging a traverse between the side parts - correspondingly longer bobbins are attached.
  • Fig. 1 shows the installation of a cleaning unit in the direction of rotation to the right of a transfer cylinder.
  • a deflecting element 2 based on the axis of a transfer cylinder 1
  • the coating 3 located on the supply reel 6 is transported by a take-up reel 5 and conveyed via a deflection element 2.
  • the take-up reel 5 and the supply reel 6 are mounted in side parts 7a, 7b, of which only the side part 7a is shown here.
  • the dashed circle around the take-up spool 5 indicates the winding thickness up to which a used coating 3 can be taken up on the take-up spool 5 (see also FIG. 2).
  • rollers 8, 18 are received, with which side parts 7a, and 7b, which are connected to one another by a crossmember 9, are received in guides.
  • Reference numeral 11 marks the direction in which the deflection element 2 is pivoted in this installed position in order to come into contact with the surface of the transfer cylinder 1.
  • the deflection element 2 shows the installation of a cleaning unit in the direction of rotation to the left of the transfer cylinder 1.
  • the deflection element 2, over which the coating 3 moves, is set on the transfer cylinder 1.
  • the deflecting element 2 has an adjusting movement in the adjusting direction 12 about the axis of rotation of the take-up spool 5.
  • the position of the deflecting element 2 and thus the adjacent strip of the cover 3 is approximately 15 ° - 30 ° above the axis of rotation of the transfer cylinder 1.
  • the used coating 3 runs off the deflection element 2 and runs onto the take-up reel 5 from below.
  • the used coating 3 runs onto the take-up reel 5 from above.
  • FIG. 2 also shows a rail 10a in which there is a groove 10c.
  • the groove 10c receives the rollers 8 and 18 of the side parts 7a and 7b.
  • FIG. 3a shows a partially sectioned view of a sectioned cleaning unit from above.
  • Both rail bearings 19a and 19b and a journal of a transfer cylinder 1 are accommodated in a side wall 13.
  • a rail 10a which has a groove 10c, is accommodated in the rail bearings 19a and 19b.
  • the rollers 8 and 18 of the side part 7a move in the groove 10c.
  • the ends of the take-up reel 5 and the supply reel 6 are received via locking bolts 15.
  • the supply spool 6 is still wound with several turns of the coating 3, while only a few turns of the coating 3 are wound on the winding spool 5.
  • a pivot lever 16a is mounted on a bushing, which receives a bearing 2a of the deflection element 2 via a screw 17 and a spacer.
  • the deflection element 2 is provided with an elevator 4, which has a high elastic deformability and returns to its original shape after being relieved.
  • the coating 3 is guided over this elevator 4.
  • the deflecting element 2 is turned on, its elevator 4 causes the covering 3 to conform to the curved surface of the transfer cylinder 1.
  • the deformable elevator 4 assumes a concave contour - corresponding to the surface curvature of the transfer cylinder 1.
  • a corresponding strip of the coating 3, which extends over the width of the transfer cylinder 1, is pressed against the latter and its ink-carrying surface is cleaned.
  • a locking bolt 26a is fastened in the side part 7a, with which the cleaning unit can be locked in the inserted position.
  • the locking bolts 15 allow simple replacement of full or empty take-up and supply spools 5, 6 without having to completely replace the cleaning unit.
  • the cleaning unit can be used universally.
  • FIG. 4a shows a front view of the cleaning unit with a flat rail bearing.
  • the fastening of the bearing pin 19b to the rail 10a and the side wall 13 is shown opposite it.
  • 3b shows a view of the drive side of the cleaning unit, seen from above.
  • the ends of the take-up reel 5 of the supply reel 6 and the drive-side end of the deflecting element 2 are received on the drive-side part 7b and via the swivel lever 16b.
  • a bearing 2b with a one-way clutch secures the deflecting element 2 against rotation, so that only one rotation of the deflecting element 2 - depending on the installation case - can take place in the transport direction of the cover 3. This favors the contact of the coating 3 with the elevator 4 which adapts to the surface of the transfer cylinder 1.
  • At the drive end of the take-up reel 5 storage with one-way clutch 22 is provided.
  • the take-up reel 5 can also only be rotated in the transport direction of the cover 3, as a result of which a uniform pretension in the cover 3 can be achieved.
  • the supply spool 6, the drive end of which is also received in the side part 7b, is provided with a gearwheel 24, in which a spring-loaded pawl 23 engages. After a part of the coating 3 has been unwound by rotating the take-up reel 5, the supply roller 6 is locked in its rotational position until a further transport operation takes place.
  • a strip of fresh coating 3 lies in the cleaning area on the surface to be cleaned and cleans the surface of the transfer cylinder 1.
  • the drive cylinder 27, which is rotatably fastened outside the side wall 14, moves about an abutment 27a and is arranged in a machine-fixed manner.
  • the drive cylinder 27 can move the drive shaft 25 in one or the other of the adjustment directions 11 and 12 via the joint 29, which is received in a bolt 28, depending on the installation case.
  • Fig. 4 b shows a front view of the cleaning unit with cranked rail mounting.
  • the screw connection of the rail bearing 19b and the groove 10c of the rail 10 are configured one above the other.
  • the locking bolt 26b of the drive-side part 7b corresponding to the locking bolt 26a defines the insertion position of the cleaning unit. After both locking bolts 26a, 26b have been pulled, the cleaning unit can be pulled out of the rails 10a and 10b, the positive drive connection also being interrupted immediately without supply lines having to be interrupted.
  • the machine-mounted detergent dispenser is arranged so that the coating 3 can be soaked with detergent before contact with the surface of the transfer cylinder 1 to be cleaned; however, it is not shown here.
  • Fig. 5 shows a side view of the cleaning unit.
  • the deflection element 2, provided with a flexible elevator 4, can be pivoted in both directions of adjustment 11 and 12.
  • the pivot lever 16a opposite the pivot lever 16b - not shown here - of course pivots parallel to the pivot lever 16b.
  • On the coupling 20 flanged to the pivot lever 16b a coupling slot 21 is provided which has an enlarged inlet area.
  • the pivoting movement - approximately in the direction of adjustment 11 - deforms the elevator 4 of the deflection element 2 and conforms it concavely to the transfer cylinder 1.
  • By limiting the swivel movements a dosing of the positioning force can be achieved; the employment characteristic can also by the selection of suitable elevators 4 for the deflection element 2 can be varied.
  • adjustable stops or the like can be provided on the drive cylinder 27.

Landscapes

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

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Reinigung farbführender Oberflächen in Druckwerken von Rotationsdruckmaschinen.The invention relates to a device for cleaning ink-carrying surfaces in printing units of rotary printing presses.

Bei bekannten Wascheinrichtungen aus DE 39 09 114 A1 sowie aus DE 39 09 119 A1 eines namhaften Druckmaschinenproduzenten sind die mit der zu reinigenden farbführenden Oberfläche zusammenwirkenden Partien der Wascheinrichtungen als betätigbare Andrückelemente ausgeführt. Die Andrückelemente bestehen aus einem in einem U-Profil aufgenommenen elastischen Teil, welches bei Druckluftbeaufschlagung ein Waschtuch mit einer farbführenden Oberfläche in Kontakt bringt. Ungünstig bei diesen Wascheinrichtungen ist der Umstand, daß die Breite des zu verwendenden Waschtuches durch die Breite des Andrückelementes festgelegt ist. Sollen die Wascheinrichtungen bei Druckmaschinen mit breiteren zu reinigenden Oberflächen verwendet werden, sind umfangreiche Modifikationen auszuführen. Weiter wird es als umständlich empfunden, beim Austausch einer als Einschubelement ausgebildeten Wascheinrichtung jedesmal eine Versorgungsleitung zu unterbrechen und nach Austausch wieder herzustellen.In known washing devices from DE 39 09 114 A1 and from DE 39 09 119 A1 of a well-known printing machine manufacturer, the parts of the washing devices interacting with the ink-carrying surface to be cleaned are designed as actuatable pressing elements. The pressure elements consist of an elastic part accommodated in a U-profile, which brings a washing cloth into contact with a color-carrying surface when compressed air is applied. A disadvantage of these washing devices is the fact that the width of the washcloth to be used is determined by the width of the pressing element. If the washing devices are to be used on printing machines with wider surfaces to be cleaned, extensive modifications must be carried out. Furthermore, it is perceived as cumbersome to interrupt a supply line each time a washing device designed as a slide-in element is replaced and to restore it after replacement.

Aus der DE-OS-38 10 786 A1 ist eine Vorrichtung zum Waschen eines Druckmaschinenzylinders bekannt, bei welcher ein Waschtuch von einer Vorratrolle abgewickelt, über ein an den Druckwerkszylinder anstellbares Andrückelement geführt und von einer Aufwickelrolle aufgewickelt wird. Das Anstellen des Andrückelements an den Druckwerkszylinder und das Transportieren des Waschtuches werden bei dieser Vorrichtung durch separate Stelleinrichtungen durchgeführt, wobei ein Transport des Waschtuches nur beim Abstellen des Andrückelements vom Druckmaschinenzylinder erfolgt.From DE-OS-38 10 786 A1 a device for washing a printing press cylinder is known, in which a washing cloth is unwound from a supply roll, guided over a pressure element that can be set on the printing unit cylinder and is wound up by a winding roll. The positioning of the pressure element on the printing unit cylinder and the transport of the washcloth are carried out in this device by separate actuating devices, one The washcloth is only transported when the pressure element is switched off from the printing press cylinder.

Ausgehend vom umrissenen Stande der Technik liegt der Erfindung die Aufgabe zugrunde, eine Wascheinrichtung dahingehend zu optimieren, daß eine kompakte Bauform sowie eine schnelle Auswechselbarkeit erzielt wird.Starting from the outlined state of the art, the object of the invention is to optimize a washing device in such a way that a compact design and rapid interchangeability are achieved.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß ein Transport eines Überzuges und eine Anstellbewegung eines schwenkbaren Umlenkelementes an eine farbführende Oberfläche eines Übertragungszylinders gleichzeitig durch kuppelbare Antriebselemente erfolgt. Die mit dieser Lösung verbundenen Vorteile sind vielfältiger Natur. Einerseits können die Herstellkosten durch eine Herabsetzung der Anzahl der verwendeten Bauteile erheblich gesenkt werden. Andererseits kann künftig das umständliche und zeitraubende Lösen einer Pneumatikversorgungsleitung beim Aus- und Einbau einer einschiebbaren Wascheinrichtung entfallen. Die Zusammenfassung von Überzugtransport- und Anstellungsfunktion erlaubt den Verzicht auf Bauteile, wodurch Platz eingespart werden kann.According to the invention the object is achieved in that a transport of a coating and a positioning movement of a pivotable deflecting element on a color-guiding surface of a transfer cylinder are simultaneously coupled Drive elements are carried out. The advantages associated with this solution are diverse. On the one hand, the manufacturing costs can be significantly reduced by reducing the number of components used. On the other hand, the cumbersome and time-consuming loosening of a pneumatic supply line when removing and installing a retractable washing device will no longer be necessary. The combination of the coating transport and employment function makes it possible to dispense with components, which can save space.

Vorteilhafte Weiterbildungen des der Erfindung zugrunde liegenden Gedankens sind darin zu sehen, daß der Transport des Überzuges sowie die Anstellbewegung des schwenkbaren Umlenkelementes jeweils um den gleichen Drehpunkt stattfinden. Dadurch kann eine einfache Steuerung erzielt werden. Eine Anstellbewegung des Umlenkelementes um die Drehachse ist sowohl in eine erste als auch in eine zweite Anstellrichtung ausführbar. Damit ist die erfindungsgemäße Reinigungseinheit - beispielsweise bei Rollenrotationsmaschinen - sowohl in Druckwerken oberhalb als auch in Druckwerken unterhalb der Bedruckstoffbahn verwendbar. Lediglich der Anstellweg ist den Verhältnissen anzupassen. Ferner ist die Transportrichtung des Überzuges entgegengesetzt zur Rotationsrichtung des Übertragungszylinders gerichtet. Dies erlaubt eine einfache konstruktive Ausführung der Reinigungseinheit, da durch die gegenläufige Rotation eine Spannung des Überzuges zwischen Umlenkelement und Aufwickelspule erzielt werden kann, andererseits die Effizienz des Reinigungsvorganges sehr hoch ist.
Außerdem ist das schwenkbare Umlenkelement mit einem Aufzug aus nachgiebigem Material versehen, der bei der Anstellung des Überzuges ein Anschmiegen des Überzuges in konkaver Konfiguration erlaubt und somit den Reinigungssektor am übertragungszylinder vergrößert. Die Enden des Umlenkelementes sind in Schwenkhebeln aufgenommen. Am antriebsseitigen Schwenkhebel sind Lageranordnungen für das Umlenkelement und die Aufwickelspule aufgenommen, die als Einwegkupplungen ausgeführt sind. Auf diese Weise wird erreicht, daß sich das Umlenkelement und die Aufwickelspule nur beim Transport des Überzuges in die Transportrichtung des Überzuges drehen.Advantageous further developments of the idea on which the invention is based can be seen in the fact that the transport of the coating and the positioning movement of the pivotable deflection element take place around the same pivot point. This enables simple control to be achieved. An adjustment movement of the deflection element about the axis of rotation can be carried out in both a first and a second adjustment direction. The cleaning unit according to the invention can thus be used both in printing units above and in printing units below the printing material web, for example in web-fed rotary machines. Only the adjustment path has to be adjusted to the conditions. Furthermore, the transport direction of the coating is opposite to the direction of rotation of the transfer cylinder. This allows the cleaning unit to be designed in a simple manner, since the counter-rotating rotation can achieve a tension in the coating between the deflection element and the take-up spool, and on the other hand the efficiency of the cleaning process is very high.
In addition, the pivotable deflection element is provided with an elevator made of resilient material which, when the cover is turned on, allows the cover to nestle in a concave configuration and thus enlarges the cleaning sector on the transfer cylinder. The ends of the Deflection elements are included in swivel levers. Bearing arrangements for the deflecting element and the take-up spool, which are designed as one-way clutches, are accommodated on the drive-side swivel lever. In this way it is achieved that the deflecting element and the take-up spool only rotate in the transport direction of the coating when the coating is being transported.

Schließlich nehmen Seitenteile, die durch mindestens eine Traverse miteinander verbunden sind, Federrastbolzen auf, mit welchen die in ihren unteren Bereichen mit Laufrollen in Nuten von Schienen aufnehmbaren Seitenteile in ihrer Einschubposition arretierbar sind. Die einem ersten Seitenteil zugewandten Enden der Vorratsspule und der Aufwickelspule sind in Rastbolzen aufgenommen. Ist die Vorratsspule erschöpft, und die Aufwickelspule voll, können diese einfach durch Ziehen der Rastbolzen ausgehangen werden. Danach können neue Spulen eingehangen werden; oder falls eine Verwendung in einer formatbreiteren Druckmaschine vorgesehen ist - nach Austausch einer Traverse zwischen den Seitenteilen - entsprechend längere Spulen eingehangen werden.Finally, side parts, which are connected to one another by at least one cross member, take up spring locking bolts with which the side parts which can be received in their lower regions with rollers in grooves in rails can be locked in their insertion position. The ends of the supply spool and the take-up spool facing a first side part are received in locking bolts. If the supply spool is exhausted and the take-up spool is full, you can simply unhook it by pulling the locking bolts. Then new coils can be hung up; or if it is intended to be used in a larger-format printing press - after exchanging a traverse between the side parts - correspondingly longer bobbins are attached.

Nachfolgend wird die Erfindung anhand einer Zeichnung detailliert beschrieben, wobei

Fig. 1
den Einbau einer Reinigungseinheit bei Drehrichtung rechts des Übertragungszylinders,
Fig. 2
den Einbau einer Reinigungseinheit bei Drehrichtung links des Übertragungszylinders,
Fig. 3a
eine Ansicht der Reinigungseinheit von oben (teilweise geschnitten),
Fig. 3b
eine Ansicht der Antriebsseite der Reinigungseinheit von oben,
Fig. 4a
eine Vorderansicht der Reinigungseinheit mit ebener Schienenlagerung,
Fig. 4b
eine Vorderansicht der Reinigungseinheit mit gekröpfter Schienenlagerung und
Fig. 5
eine Seitenansicht der Reinigungseinheit zeigt.
The invention is described in detail below with reference to a drawing
Fig. 1
the installation of a cleaning unit in the direction of rotation to the right of the transfer cylinder,
Fig. 2
the installation of a cleaning unit with the direction of rotation to the left of the transfer cylinder,
Fig. 3a
a view of the cleaning unit from above (partially cut),
Fig. 3b
a view of the drive side of the cleaning unit from above,
Fig. 4a
a front view of the cleaning unit with flat rail mounting,
Fig. 4b
a front view of the cleaning unit with cranked rail mounting and
Fig. 5
shows a side view of the cleaning unit.

Fig. 1 zeigt den Einbau einer Reinigungseinheit bei Drehrichtung rechts eines Übertragungszylinders. In der hier gezeigten Einbaulage ist ein Umlenkelement 2, bezogen auf die Achse eines Übertragungszylinders 1, 15°-30° unterhalb der Rotationsachse des Übertragungszylinders 1 an die farbführende Oberfläche des Übertragungszylinders 1 angestellt. Der auf der Vorratsspule 6 befindliche Überzug 3 wird von einer Aufwickelspule 5 transportiert und über ein Umlenkelement 2 gefördert. Die Aufwickelspule 5 und die Vorratsspule 6 sind in Seitenteilen 7a, 7b gelagert, von denen hier nur das Seitenteil 7a dargestellt ist. Der gestrichelte Kreis um die Aufwickelspule 5 deutet die Wickelstärke an, bis zu der ein verbrauchter Überzug 3 auf der Aufwickelspule 5 aufgenommen werden kann (siehe auch Fig. 2). In den Seitenteilen 7a, 7b sind Laufrollen 8, 18 aufgenommen mit welchen durch eine Traverse 9 miteinander verbundene Seitenteile 7a, und 7b in Führungen aufgenommen werden. Bezugszeichen 11 markiert die Anstellrichtung in welche das Umlenkelement 2 in dieser Einbaulage geschwenkt wird, um in Kontakt mit der Oberfläche des Übertragungszylinders 1 zu gelangen.Fig. 1 shows the installation of a cleaning unit in the direction of rotation to the right of a transfer cylinder. In the installation position shown here, a deflecting element 2, based on the axis of a transfer cylinder 1, is placed 15 ° -30 ° below the axis of rotation of the transfer cylinder 1 against the ink-carrying surface of the transfer cylinder 1. The coating 3 located on the supply reel 6 is transported by a take-up reel 5 and conveyed via a deflection element 2. The take-up reel 5 and the supply reel 6 are mounted in side parts 7a, 7b, of which only the side part 7a is shown here. The dashed circle around the take-up spool 5 indicates the winding thickness up to which a used coating 3 can be taken up on the take-up spool 5 (see also FIG. 2). In the side parts 7a, 7b, rollers 8, 18 are received, with which side parts 7a, and 7b, which are connected to one another by a crossmember 9, are received in guides. Reference numeral 11 marks the direction in which the deflection element 2 is pivoted in this installed position in order to come into contact with the surface of the transfer cylinder 1.

Fig. 2 zeigt den Einbau einer Reinigungseinheit bei Drehrichtung links des Übertragungszylinders 1. An den Übertragungszylinder 1 ist das Umlenkelement 2 angestellt, über welches sich der Überzug 3 bewegt. Das Umlenkelement 2 hat eine Anstellbewegung in die Anstellrichtung 12 um die Drehachse der Aufwickelspule 5 vollzogen. Im in Fig. 2 gezeigten Einbaufall liegt die Position des Umlenkelementes 2 und damit des anliegenden Streifens des Überzuges 3 etwa 15° - 30° oberhalb der Rotationsachse des Übertragungszylinders 1. Im Gegensatz zum in Fig. 1 dargestellten Einbaufall läuft der verbrauchte Überzug 3 vom Umlenkelement 2 ab und von unten auf die Aufwickelspule 5 auf. Beim in Fig. 1 dargestellten Einbaufall läuft der verbrauchte Überzug 3 von oben auf die Aufwickelspule 5 auf. In beiden Einbaufällen ist eine Transportrichtung des Überzuges 3 gegeben, die entgegengesetzt zur Rotationsrichtung des Übertragungszylinders 1 verläuft, wodurch sich bessere Reinigungseigenschaften erzielen lassen. In Fig. 2 ist darüber hinaus eine Schiene 10a gezeigt, in welcher sich eine Nut 10c befindet. Die Nut 10c nimmt die Laufrollen 8 bzw. 18 der Seitenteile 7a und 7b auf.2 shows the installation of a cleaning unit in the direction of rotation to the left of the transfer cylinder 1. The deflection element 2, over which the coating 3 moves, is set on the transfer cylinder 1. The deflecting element 2 has an adjusting movement in the adjusting direction 12 about the axis of rotation of the take-up spool 5. In the installation shown in Fig. 2, the position of the deflecting element 2 and thus the adjacent strip of the cover 3 is approximately 15 ° - 30 ° above the axis of rotation of the transfer cylinder 1. In contrast to the installation shown in FIG. 1, the used coating 3 runs off the deflection element 2 and runs onto the take-up reel 5 from below. In the installation shown in FIG. 1, the used coating 3 runs onto the take-up reel 5 from above. In both installation cases, there is a transport direction of the coating 3, which is opposite to the direction of rotation of the transfer cylinder 1, whereby better cleaning properties can be achieved. FIG. 2 also shows a rail 10a in which there is a groove 10c. The groove 10c receives the rollers 8 and 18 of the side parts 7a and 7b.

Fig. 3a zeigt eine teilweise geschnittene Ansicht einer geschnittenen Reinigungseinheit von oben. In einer Seitenwand 13 sind sowohl Schienenlager 19a und 19b aufgenommen, als auch ein Zapfen eines Übertragungszylinders 1. In den Schienenlagern 19a und 19b ist eine Schiene 10a aufgenommen, die eine Nut 10c aufweist. In der Nut 10c bewegen sich die Laufrollen 8 bzw. 18 des Seitenteils 7a. Im Seitenteil 7a sind über Rastbolzen 15 die Enden der Aufwickelspule 5 sowie der Vorratsspule 6 aufgenommen. Im hier gezeigten Zustand ist die Vorratsspule 6 noch mit mehreren Windungen des Überzuges 3 bewickelt, während auf der Aufwickelspule 5 erst wenige Windungen des Überzuges 3 aufgewickelt sind. An dem der Aufwickelspindel 5 zugeordneten Rastbolzen 15 ist auf einer Buchse ein Schwenkhebel 16a gelagert, der über eine Schraube 17 und ein Distanzstück eine Lagerung 2a des Umlenkelementes 2 aufnimmt. Das Umlenkelement 2 ist mit einem Aufzug 4 versehen, welcher eine hohe elastische Verformbarkeit aufweist und nach seiner Entlastung wieder seine ursprüngliche Form annimmt. Über diesen Aufzug 4 wird der überzug 3 geführt. Bei der Anstellung des Umlenkelements 2 bewirkt dessen Aufzug 4 einen Anschmiegevorgang des Überzuges 3 an die gekrümmte Oberfläche des Übertragungszylinders 1. Dabei nimmt der verformbare Aufzug 4 eine konkave Kontur - entsprechend der Oberflächenkrümmung des Übertragungszylinders 1 - an. Dadurch wird ein entsprechender Streifen des Überzugs 3, sich über die Breite des Übertragungszylinders 1 erstreckend, an diesen gedrückt und dessen farbführende Oberfläche gereinigt. Im Seitenteil 7a ist darüber hinaus ein Arretierbolzen 26a befestigt, mit dem die Reinigungseinheit in der eingeschobenen Position arretiert werden kann.
Die Rastbolzen 15 erlauben ein einfaches Auswechseln voller bzw. leerer Aufwickel- und Vorratsspulen 5, 6 ohne die Reinigungseinheit komplett auswechseln zu müssen. Durch Einbau entsprechend dimensionierter Traversen 9 und Umlenkelemente 2 ist die Reinigungseinheit universell verwendbar.3a shows a partially sectioned view of a sectioned cleaning unit from above. Both rail bearings 19a and 19b and a journal of a transfer cylinder 1 are accommodated in a side wall 13. A rail 10a, which has a groove 10c, is accommodated in the rail bearings 19a and 19b. The rollers 8 and 18 of the side part 7a move in the groove 10c. In the side part 7a, the ends of the take-up reel 5 and the supply reel 6 are received via locking bolts 15. In the state shown here, the supply spool 6 is still wound with several turns of the coating 3, while only a few turns of the coating 3 are wound on the winding spool 5. On the locking pin 15 assigned to the winding spindle 5, a pivot lever 16a is mounted on a bushing, which receives a bearing 2a of the deflection element 2 via a screw 17 and a spacer. The deflection element 2 is provided with an elevator 4, which has a high elastic deformability and returns to its original shape after being relieved. The coating 3 is guided over this elevator 4. When the deflecting element 2 is turned on, its elevator 4 causes the covering 3 to conform to the curved surface of the transfer cylinder 1. The deformable elevator 4 assumes a concave contour - corresponding to the surface curvature of the transfer cylinder 1. As a result, a corresponding strip of the coating 3, which extends over the width of the transfer cylinder 1, is pressed against the latter and its ink-carrying surface is cleaned. In addition, a locking bolt 26a is fastened in the side part 7a, with which the cleaning unit can be locked in the inserted position.
The locking bolts 15 allow simple replacement of full or empty take-up and supply spools 5, 6 without having to completely replace the cleaning unit. By installing appropriately dimensioned crossbeams 9 and deflection elements 2, the cleaning unit can be used universally.

Fig. 4a zeigt eine Vorderansicht der Reinigungseinheit mit ebener Schienenlagerung. Auf der Vorratsspule 6 befinden sich noch etliche Windungen des Überzugs 3. Die Schraube 17 mit der eine Traverse 9 sowie eine Laufrolle 18 am Seitenteil 7a aufgenommen sind, ragt in die Nut 10c der Schiene 10a hinein. Ihr gegenüberliegend ist die Befestigung des Lagerbolzens 19b an der Schiene 10a und der Seitenwand 13 dargestellt.4a shows a front view of the cleaning unit with a flat rail bearing. On the supply spool 6 there are still several turns of the coating 3. The screw 17, with which a crossmember 9 and a roller 18 are received on the side part 7a, projects into the groove 10c of the rail 10a. The fastening of the bearing pin 19b to the rail 10a and the side wall 13 is shown opposite it.

In Fig. 3b ist eine Ansicht der Antriebsseite der Reinigungseinheit, von oben gesehen, dargestellt. Am antriebsseitigen Seitenteil 7b sind die Enden der Aufwickelspule 5 der Vorratsspule 6 sowie über den Schwenkhebel 16b das antriebsseitige Ende des Umlenkelements 2 aufgenommen. Eine Lagerung 2b mit Einwegkupplung sichert das Umlenkelement 2 gegen Verdrehen, so daß nur eine Rotation des Umlenkelements 2 - je nach Einbaufall in Transportrichtung des Überzugs 3 erfolgen kann. Dadurch wird die Anlage des Überzugs 3 an den sich an die Oberfläche des übertragungszylinders 1 anpassenden Aufzug 4 begünstigt. Am antriebsseitigen Ende der Aufwickelspule 5 ist eine Lagerung mit Einwegkupplung 22 vorgesehen. Dadurch ist die Aufwickelspule 5 ebenfalls nur in die Transportrichtung des Überzugs 3 drehbar, wodurch eine gleichmäßige Vorspannung im Überzug 3 erreichbar ist. Die Vorratsspule 6, deren antriebsseitiges Ende ebenfalls im Seitenteil 7b aufgenommen ist, ist mit einem Zahnrad 24 versehen, in welches eine federbelastete Sperrklinke 23 eingreift. Nach Abwicklung eines Teiles des Überzuges 3 durch Verdrehung der Aufwickelspule 5 wird die Vorratswalze 6 in ihrer Drehlage arretiert, bis ein weiterer Transportvorgang erfolgt.3b shows a view of the drive side of the cleaning unit, seen from above. The ends of the take-up reel 5 of the supply reel 6 and the drive-side end of the deflecting element 2 are received on the drive-side part 7b and via the swivel lever 16b. A bearing 2b with a one-way clutch secures the deflecting element 2 against rotation, so that only one rotation of the deflecting element 2 - depending on the installation case - can take place in the transport direction of the cover 3. This favors the contact of the coating 3 with the elevator 4 which adapts to the surface of the transfer cylinder 1. At the drive end of the take-up reel 5 storage with one-way clutch 22 is provided. As a result, the take-up reel 5 can also only be rotated in the transport direction of the cover 3, as a result of which a uniform pretension in the cover 3 can be achieved. The supply spool 6, the drive end of which is also received in the side part 7b, is provided with a gearwheel 24, in which a spring-loaded pawl 23 engages. After a part of the coating 3 has been unwound by rotating the take-up reel 5, the supply roller 6 is locked in its rotational position until a further transport operation takes place.

Wird die Reinigungseinheit in die Schienen 10a, 10b eingeschoben, entsteht antriebsseitig eine formschlüssige Verbindung zwischen dem Vierkant 25a einer Antriebsachse 25 und einer Kupplung 20. Der Vierkant 25a gelangt beim Einschub der Reinigungseinheit in einen Kupplungsschlitz 21 der Kupplung 20. Wird die Antriebsachse 25 durch den Antriebszylinder 27 verdreht, verdreht sich der Schwenkhebel 16b auf der Antriebsseite in die entsprechende Anstellrichtung. Durch die Lagerung mit Einwegkupplung 22 wird bei dieser Drehbewegung gleichzeitig die Aufwickelspule 5 so verdreht, daß der überzug 3 in Transportrichtung gezogen wird. Parallel dazu wird entsprechend die Vorratsspule 6 bewegt, bis nach Abwicklung eines Teiles des Überzugs 3 die federbelastete Sperrklinke 23 das Zahnrad 24 der Vorratsspule 6 arretiert. Dadurch liegt ein Streifen frischer Überzug 3 im Reinigungsbereich an der zu reinigenden Oberfläche an und reinigt die Oberfläche des Übertragungszylinders 1. Der außerhalb der Seitenwand 14 drehbar befestigte Antriebszylinder 27 bewegt sich um ein Widerlager 27a und ist maschinenfest angeordnet. Beim Auswechseln der Reinigungseinheit wird lediglich die formschlüssige Verbindung zwischen Kupplungsschlitz 21 und Vierkant 25a dadurch aufgehoben, daß die Seitenteile 7a und 7b aus den Schienen 10a und 10b herausgezogen werden. Durch die hier nicht näher beschriebene Steuerung der Reinigungseinheit kann der Antriebszylinder 27 über das Gelenk 29, welches in einem Bolzen 28 aufgenommen ist - je nach Einbaufall - die Antriebsachse 25 in die eine oder die andere der Anstellrichtungen 11 und 12 bewegen.If the cleaning unit is pushed into the rails 10a, 10b, a positive connection is created on the drive side between the square 25a of a drive axle 25 and a coupling 20. The square 25a arrives in a coupling slot 21 of the coupling 20 when the cleaning unit is inserted Twisted drive cylinder 27, the pivot lever 16b rotates on the drive side in the corresponding direction of attack. Due to the storage with one-way clutch 22, the take-up spool 5 is simultaneously rotated during this rotary movement so that the cover 3 is pulled in the transport direction. In parallel with this, the supply spool 6 is moved accordingly until after the processing of a part of the coating 3, the spring-loaded pawl 23 locks the gear 24 of the supply spool 6. As a result, a strip of fresh coating 3 lies in the cleaning area on the surface to be cleaned and cleans the surface of the transfer cylinder 1. The drive cylinder 27, which is rotatably fastened outside the side wall 14, moves about an abutment 27a and is arranged in a machine-fixed manner. When replacing the cleaning unit, only the positive connection between the coupling slot 21 and the square 25a is canceled by pulling the side parts 7a and 7b out of the rails 10a and 10b. By the control of the not described here Cleaning unit, the drive cylinder 27 can move the drive shaft 25 in one or the other of the adjustment directions 11 and 12 via the joint 29, which is received in a bolt 28, depending on the installation case.

Fig. 4 b zeigt eine Vorderansicht der Reinigungseinheit mit gekröpfter Schienenlagerung. Bei dieser Konfiguration, mit der seitlicher Einbauraum eingespart werden kann, sind die Verschraubung des Schienenlagers 19b und die Nut 10c der Schiene 10 übereinanderliegend ausgeführt. Der dem Arretierbolzen 26a entsprechende Arretierbolzen 26b des antriebsseitigen Seitenteils 7b legt die Einschubposition der Reinigungseinheit fest.
Nach Ziehen beider Arretierbolzen 26a, 26b ist die Reinigungseinheit aus den Schienen 10a und 10b ziehbar, wobei auch die formschlüssige Antriebsverbindung sofort unterbrochen wird, ohne daß Versorgungsleitungen zu unterbrechen wären. Die maschinenfest gelagerte Waschmittelspendevorrichtung ist so angeordnet, daß der Überzug 3 vor dem Kontakt mit der zu reinigenden Oberfläche des Übertragungszylinders 1 mit Waschmittel tränkbar ist; sie ist jedoch hier nicht wiedergegeben.Fig. 4 b shows a front view of the cleaning unit with cranked rail mounting. In this configuration, with which lateral installation space can be saved, the screw connection of the rail bearing 19b and the groove 10c of the rail 10 are configured one above the other. The locking bolt 26b of the drive-side part 7b corresponding to the locking bolt 26a defines the insertion position of the cleaning unit.
After both locking bolts 26a, 26b have been pulled, the cleaning unit can be pulled out of the rails 10a and 10b, the positive drive connection also being interrupted immediately without supply lines having to be interrupted. The machine-mounted detergent dispenser is arranged so that the coating 3 can be soaked with detergent before contact with the surface of the transfer cylinder 1 to be cleaned; however, it is not shown here.

Fig. 5 zeigt eine Seitenansicht der Reinigungseinheit. Das Umlenkelement 2, versehen mit einem nachgiebigem Aufzug 4 ist in beide Anstellrichtungen 11 und 12 schwenkbar. Der dem Schwenkhebel 16b gegenüberliegende - hier nicht dargestellte - Schwenkhebel 16a schwenkt selbstverständlich parallel zum Schwenkhebel 16b. An der am Schwenkhebel 16b angeflanschten Kupplung 20 ist ein Kupplungsschlitz 21 ausgeführt, der einen erweiterten Einlaßbereich aufweist. Durch die Schwenkbewegung - etwa in Anstellrichtung 11 - wird der Aufzug 4 des Umlenkelements 2 verformt und konkav an den Übertragungszylinder 1 angeschmiegt. Durch die Begrenzung der Schwenkbewegungen kann eine Dosierung der Anstellkraft erreicht werden; die Anstellcharakteristik kann ferner durch die Auswahl geeigneter Aufzüge 4 für das Umlenkelement 2 variiert werden. Um einen Kanalschlag am Übertragungszylinder 1 zu vermeiden, können am Antriebszylinder 27 einstellbare Anschläge oder ähnliches vorgesehen werden.Fig. 5 shows a side view of the cleaning unit. The deflection element 2, provided with a flexible elevator 4, can be pivoted in both directions of adjustment 11 and 12. The pivot lever 16a opposite the pivot lever 16b - not shown here - of course pivots parallel to the pivot lever 16b. On the coupling 20 flanged to the pivot lever 16b, a coupling slot 21 is provided which has an enlarged inlet area. The pivoting movement - approximately in the direction of adjustment 11 - deforms the elevator 4 of the deflection element 2 and conforms it concavely to the transfer cylinder 1. By limiting the swivel movements, a dosing of the positioning force can be achieved; the employment characteristic can also by the selection of suitable elevators 4 for the deflection element 2 can be varied. In order to avoid a channel blow on the transfer cylinder 1, adjustable stops or the like can be provided on the drive cylinder 27.

TeilelisteParts list

11
ÜbertragungszylinderTransfer cylinder
22nd
UmlenkelementDeflecting element
2a2a
Lagerungstorage
2b2 B
Lagerung mit EinwegkupplungStorage with one-way clutch
33rd
Überzugcoating
44th
AufzugElevator
55
AufwickelspuleTake-up spool
66
VorratsspuleSupply spool
7a7a
Seitenteil (BS)Side panel (BS)
7b7b
Seitenteil (AS)Side panel (AS)
88th
LaufrolleRoller
99
Traversetraverse
10a10a
Schienerail
10b10b
Schienerail
10c10c
NutGroove
1111
AnstellrichtungDirection of attack
1212th
AnstellrichtungDirection of attack
1313
Seitenwand (BS)Sidewall (BS)
1414
Seitenwand (AS)Sidewall (AS)
1515
RastbolzenLocking bolt
16a16a
SchwenkhebelSwivel lever
16b16b
SchwenkhebelSwivel lever
1717th
Schraubescrew
1818th
LaufrolleRoller
19a19a
SchienenlagerRail bearing
19b19b
SchienenlagerRail bearing
2020th
Kupplungclutch
2121
KupplungsschlitzClutch slot
2222
Lagerung mit EinwegkupplungStorage with one-way clutch
2323
SperrklinkePawl
23a23a
BuchseRifle
2424th
Zahnradgear
24a24a
BuchseRifle
2525th
AntriebsachseDrive axle
25a25a
VierkantSquare
26a26a
ArretierbolzenLocking bolt
26b26b
ArretierbolzenLocking bolt
2727
AntriebszylinderDrive cylinder
27a27a
WiderlagerAbutment
2828
Bolzenbolt
2929
Gelenkjoint

Claims (9)

  1. Cleaning unit for the cleaning of ink-carrying surfaces in printing units of rotary printing machines, a wind-off covering (3) being transported from a stock reel (6) onto a winding reel (5), and the winding reel (5), when the cleaning unit is pushed into guides (10) arranged ahead of the surface to be cleaned, being connectable mechanically to a drive element, characterized in that a transport of the covering (3) and a throw-on movement of a pivotable deflecting element (2) onto an ink-carrying surface of a transfer cylinder (1) take place simultaneously by means of couplable drive elements (20, 27).
  2. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 1, characterized in that the transport of the covering (3) and the throw-on movement of the pivotable deflecting element (2) each takes place about the same axis of rotation (5).
  3. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 1 and 2, characterized in that a throw-on movement of the deflecting element (2) and a transport of the covering (3) about the axis of rotation (5) can be executed both in a first throw-on direction (11) and in a second throw-on direction (12).
  4. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 1, characterized in that the direction of transport of the covering (3) is opposite to the direction of rotation of the transfer cylinder (1).
  5. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 1, characterized in that the pivotable deflecting element (2) is provided with a dressing (4) consisting of flexible material.
  6. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 1, characterized in that the ends of the deflecting element (2) are received in pivoting levers (16a, 16b).
  7. Cleaning unit for the cleaning of ink-carrying surfaces according to one or more of the preceding claims, characterized in that bearing arrangements (2b, 22), designed as one-way couplings, for the deflecting element (2) and for the winding reel (5) are received on the pivoting lever (16b) located on the driving side.
  8. Cleaning unit for the cleaning of ink-carrying surfaces according to one or more of the preceding claims, characterized in that side parts (7a, 7b), connected to one another by means of at least one cross-member (9), receive spring catch bolts (26a, 26b), by means of which the side parts (7a, 7b), receivable in grooves (10c) of rails (10a, 10b) by means of running rollers (8, 18), can be retained in their pushed-in position.
  9. Cleaning unit for the cleaning of ink-carrying surfaces according to Claim 8, characterized in that the ends of the stock reel (6) and of the winding reel (5) which confront the first side part (7a) are received in catch bolts (15).
EP93102617A 1992-04-04 1993-02-19 Device for cleaning ink carrying surfaces in printing units Expired - Lifetime EP0564795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211310A DE4211310A1 (en) 1992-04-04 1992-04-04 Device for cleaning ink-carrying surfaces in printing units
DE4211310 1992-04-04

Publications (2)

Publication Number Publication Date
EP0564795A1 EP0564795A1 (en) 1993-10-13
EP0564795B1 true EP0564795B1 (en) 1996-06-19

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US (1) US5390602A (en)
EP (1) EP0564795B1 (en)
DE (2) DE4211310A1 (en)

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DE19543518B4 (en) * 1995-11-22 2006-03-30 Heidelberger Druckmaschinen Ag Apparatus for washing cylinder jacket surfaces in rotary printing machines
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DE20023540U1 (en) * 2000-01-08 2004-10-07 Baldwin Germany Gmbh Cleaning device for printing press cylinders
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DE10008214B4 (en) * 2000-02-23 2006-10-12 Man Roland Druckmaschinen Ag Extinguishing and cleaning device for cylindrical surfaces, in particular printing plate and blanket cylinders of a printing press
DE10160197A1 (en) * 2001-12-09 2003-06-18 Baldwin Germany Gmbh Device for cleaning rotary print machine cylinders has an assembly of dirty cloth and clean cloth spindles together with a drive and clutch mechanism that enables reuse of the relatively clean cloth sections
DE10160255A1 (en) * 2001-12-09 2003-06-18 Baldwin Germany Gmbh Device for cleaning rotary print machine cylinders comprises a gear wheel rack and pinion drive that enables the easy insertion and removal of a wash bar in its support device or removal of its component elements
DE10215612B4 (en) * 2002-04-09 2005-04-28 Roland Man Druckmasch Extinguishing and cleaning device for cylinders, in particular printing forme and blanket cylinders of a printing machine
DE102004035399A1 (en) * 2004-07-21 2006-02-16 Technotrans Ag Device for cleaning surfaces, in particular printing press cylinders
WO2008111235A1 (en) * 2007-03-13 2008-09-18 Toyo Seikan Kaisha, Ltd. Method and device for trapping ink
DE102009013327B4 (en) * 2008-04-21 2019-03-07 Heidelberger Druckmaschinen Ag Method for operating a printing machine
JP6759257B2 (en) * 2018-01-19 2020-09-23 ニッカ株式会社 Cleaning cloth roll

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Also Published As

Publication number Publication date
DE4211310A1 (en) 1993-10-28
DE59302973D1 (en) 1996-07-25
EP0564795A1 (en) 1993-10-13
US5390602A (en) 1995-02-21

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