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EP0679513A2 - Device for guiding a printing support - Google Patents

Device for guiding a printing support Download PDF

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Publication number
EP0679513A2
EP0679513A2 EP95104640A EP95104640A EP0679513A2 EP 0679513 A2 EP0679513 A2 EP 0679513A2 EP 95104640 A EP95104640 A EP 95104640A EP 95104640 A EP95104640 A EP 95104640A EP 0679513 A2 EP0679513 A2 EP 0679513A2
Authority
EP
European Patent Office
Prior art keywords
guide elements
guide
print carrier
pair
plate
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.)
Granted
Application number
EP95104640A
Other languages
German (de)
French (fr)
Other versions
EP0679513A3 (en
EP0679513B1 (en
Inventor
Hans-Jürgen Kusch
Rudi Stellberger
Bernd Ruf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0679513A2 publication Critical patent/EP0679513A2/en
Publication of EP0679513A3 publication Critical patent/EP0679513A3/en
Application granted granted Critical
Publication of EP0679513B1 publication Critical patent/EP0679513B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a device for guiding a printing medium when feeding and removing the printing medium to and from a plate cylinder of a printing press.
  • the invention has for its object to provide a device that allows a reliable supply and discharge of a printing medium to or from a plate cylinder.
  • the device according to the invention achieves problem-free guiding of the printing medium when changing plates.
  • the two guide elements ensure that that the surface of the print carrier does not come into contact with machine parts; this effectively prevents damage to the sensitive printing surface.
  • the device is also designed so that one of the two guide elements only comes into contact with the surface of the not yet printed, color-free printing medium (printing plate, printing film), while the other only comes into contact with the surface of the already printed, color-bearing printing medium comes into contact, soiling of an as yet unprinted print carrier, in particular when clamping onto the plate cylinder, is excluded from the outset.
  • the two guide elements are a pair of rollers.
  • Inexpensive - or required in certain embodiments - is also the design to use roller-shaped segments or runners instead of continuous rollers.
  • Such an embodiment is less expensive, but can also prove to be expedient or must be turned out to be necessary to avoid a collision with the grippers of the terminal strips of the clamping and tensioning devices.
  • the guide elements are arranged eccentrically on a traverse. Depending on the pivoted position, this offset means that only the desired guide element comes into contact with the surface of the print carrier.
  • An inexpensive variant of the device according to the invention provides the following adjusting mechanism for pivoting the crossbar.
  • Two friction wheels are rotatably mounted in the end areas of the traverse.
  • a freewheel is assigned to each of these friction wheels, with a freewheel opposite direction of entrainment of the other.
  • the traverse itself is spring-mounted in a pivoted lever. Via a curve control, the friction wheels are pressed against the bearer rings of the printing cylinder while a pressure carrier is being fed in or out.
  • the crosshead with the two guide elements is automatically brought into the desired positions in accordance with the driving directions of the freewheels which are coordinated with the direction of rotation of the plate cylinder when the pressure carrier is fed in and out.
  • a lever is fastened to the crossmember and can be actuated via an actuating element, for example an actuating cylinder with two working positions, a motor or a magnet .
  • a further crossmember is provided between the pivotable levers, on which at least one guide element is fixed.
  • the guide element is rigidly attached to the feed table.
  • the guide element ensures safe removal of the plate to the feed table.
  • the guide elements are advantageously arranged in a gap between the grippers of the adhesive strips.
  • the configuration of attaching the device for feeding and removing the printing medium to a pivotably mounted protection of a printing unit proves to be advantageous.
  • the device can then be removed at the same time as the protection, which is inevitably necessary if work is to be carried out on the rollers and cylinders of the printing unit.
  • Figures 1 to 5 show an advantageous embodiment of the device according to the invention for feeding and removing pressure carriers in the two working positions (position A, position B).
  • the embodiments with which the two different positions (A, B) can be controlled are described later.
  • Fig. 1 shows the position of the pair of rollers 8 at a time when the print carrier 1 (printing plate or printing film) guided over the feed table 2 is placed between the clamping surfaces 4a, 5a of the two clamping strips 4, 5 of the leading edge clamping device 3.
  • the front edge of the pressure plate 1 is clamped in that one of the two clamping surfaces 4a, 5a is moved perpendicular to the other clamping surface 4a, 5a.
  • the clamping device 3 is arranged in the cylinder channel 6 of the plate cylinder 7 of a printing machine, which is not shown separately.
  • this position A defined as the starting position the pair of rollers 8, consisting of the two guide rollers 9, 10, is set down from the surface of the plate cylinder 7.
  • the two idlers 9, 10 are mounted eccentrically on a swiveling crossbar 11.
  • Figures 2 and 3 show the position of the pair of rollers 8 during the mounting of the printing plate 1 on the plate cylinder 7 again (position B).
  • the pair of rollers swivels in position B to a defined distance from the plate cylinder by a pivoting movement of the crossmember 11.
  • the guide roller 9 holds the plate down while the plate cylinder 7 rotates in the direction of the arrow about its central axis.
  • the pair of rollers 8 remains in this position until the rear edge of the pressure plate 1 is fixed between the clamping surfaces 15a, 16a of the clamping strips 15, 16 of the trailing edge clamping and tensioning device 14 after one rotation of the plate cylinder.
  • Devices for clamping and tensioning printing plates 1 have already become well known. To name possible embodiments for such devices, reference is made to DE 41 28 994 A1 or DE 41 29 831 A1.
  • a guide element 18 is provided, which is part of the feed table 2.
  • the pair of rollers 8 swings into the second position (position A). As soon as the clamping and tensioning device 14 releases the plate trailing edge, it springs out of the holder due to the internal stress and comes into contact with the surface of the guide roller 10. During the rotation of the plate cylinder 7 and thus the unwinding of the pressure plate 1, it becomes on the guide roller 10 passed and pushed onto the feed table 2.
  • the guide elements 18 advantageously support the 'ejection' of the pressure plate 1.
  • FIGS. 4 and 5 This state of affairs is illustrated in FIGS. 4 and 5.
  • Fig. 6 shows a side view of the pair of rollers with a first embodiment of an on and off mechanism; in Fig. 7 the corresponding device is shown in plan view.
  • the guide rollers 9, 10 are rigidly mounted on a rotatably mounted crossmember 11 - in the case shown it is a square.
  • the two guide rollers 9, 10 are composed of eccentrically mounted roller-shaped segments 49 which are arranged in such a way that the two positions (position A, position B) of the guide rollers 9, 10 can be realized by rotating the crossbar 11 by a certain angle.
  • the distance between the roller-shaped segments 49 is dimensioned such that a collision with the clamping strips 4.15 of the clamping and tensioning devices 3.14 on the plate cylinder 7 is excluded.
  • the end regions 52 of the crossmember 11 are rotatably supported by bushings 53 in bearing levers 54 arranged on both sides.
  • the end regions 52 of the crossmember 11 carry friction wheels 42.
  • Each friction wheel 42 is assigned a freewheel 43, 44 with the opposite driving direction on the drive and operator side.
  • the shaft 55 is rotatably supported in the bearing levers 54 and the fastening parts 54 rigidly connected to the printing unit protection 29.
  • a bolt 51, which interacts with a curve 28, is attached to the fastening part 53 on the drive side.
  • the bearing levers 54 carrying the pair of rollers 8 are rotated about the central axis of the shaft 55.
  • work is done against the force of the tension spring 50.
  • the pivoting movement of the bearing levers 54 causes the friction wheels 42, each of which has a rubber ring 48 on its circumference, to be applied to the bearer rings 33 of the plate cylinder 7 pressed.
  • the driving direction of the freewheels 43, 44 is designed in such a way that the guide roller 9 is in the case of the plate feed and the guide roller 10 is in the vicinity of the pressure plate 1 in the case of the plate ejection.
  • 49 limiting pins 45 are attached to the two outer roller-shaped segments, which engage in the two required angular positions strike the edges of the appropriately designed fastening parts 56.
  • the attachment points are marked with 'x' in FIG. 6.
  • the guide rollers 9, 10 which in turn consist of individual roller-shaped segments 49 in the case shown, are rigidly attached to a rotatably mounted crossmember 11, in the case shown on a square. Since the roller-shaped segments 49 of each of the two guide rollers 9, 10 are arranged eccentrically, the two desired positions can be set by rotating the crossmember 11.
  • the crossmember 11 carries bearings 20 on both sides, which are each mounted in an elongated hole 21 of the fastening parts 27 on springs 22. A force is exerted on the spring-mounted crossmember 11, with the guide rollers 9, 10, controlled via a curve 28, in order to adjust the two positions of the roller pair 8.
  • 11 friction wheels 42 are rotatably mounted on the cross member.
  • the friction wheels 42 each have a protruding rubber ring 48 on their circumference.
  • a further cross member 25 couples the two levers 24 rigidly to one another. Is on the two levers 24 and thus on the crossbar 11th and the guide rollers 9, 10 exert a force by means of the cam control, the friction wheels 42 are pressed onto the bearer rings 33 of the plate cylinder 7.
  • the friction wheels 42 each have a freewheel 43, 44, the freewheel 44 on the operator side having a different driving direction than the freewheel 43 on the drive side.
  • the direction of travel of the freewheels 43, 44 is selected such that the crossmember 11 with the guide rollers 9, 10 is pivoted into position B in the case of plate insertion and into position A in the case of plate ejection.
  • pins 45 are provided on the end faces of the roller 9 or on the end faces of the two outer roller-shaped segments, which interact with a correspondingly adapted shape of the fastening parts 27.
  • the two contact points for the limiting pin 45 on the fastening part 27 are marked with an 'x' in FIG. 8.
  • a further cross member 26 (square) is rigidly mounted in the levers 24 arranged on both sides.
  • the guide elements 18 are fixed on this cross member 26 by means of retaining rings arranged on both sides.
  • the cross member 26 with the guide elements 18 makes the pivoting movement of the lever 24 with the rigid coupling.
  • the guide elements 18 are arranged on the crossmember 26 such that they do not collide with the clamping strips 4, 5, 15, 16 of the clamping and tensioning devices 3, 14 for the front and rear edge of the plate.
  • the roller-shaped segments 49 shown in FIGS. 9 and 10 consist of symmetrically shaped, disk-shaped parts 34 which are connected by means of a pin 36 and over Circlips 37 held together and are additionally fixed off-center on the crossbar 11 via the latter.
  • a ring 35 is rotatably mounted in a recess in the disk-shaped parts 34 made in the circumferential direction. As soon as the pressure plate 1 comes into contact with the circumferential surface of the rings 35 of the roller-shaped segments 49 employed, they roll on the pressure plate 1.
  • the device for feeding and ejecting a printing plate 1 is screwed to the printing unit guard 29 via angled fastening parts 27 arranged on both sides.
  • these fastening parts 29 are omitted in the top view according to FIGS. 9 and 10.
  • the printing unit protection 29 is screwed to a lever 30 pivotably mounted about the axis 31.
  • the printer In order to be able to carry out work on the printing unit, the printer must fold up the protection 29.
  • the plate feed device is moved away at the same time, whereby unimpeded access to the printing unit, for example for cleaning purposes, is achieved.
  • FIG. 11 a further on and off mechanism for the pair of rollers 8 is shown. With the exception of this mechanism, the other elements correspond to those from FIG. 9 or FIG. 10.
  • a lever 46 is coupled to the roller pin 41 for pivoting the cross member 11.
  • the lever 46 is assigned an actuating element 47 which, by applying a force F to the lever, performs the necessary actuating processes as a function of the angular position of the printing press.
  • This control element is, for example, a lifting cylinder with two working positions or a magnet.
  • An electric motor can of course also be used.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

The device has a pair of guide components (8-10) axis-parallel to the print cylinder (7). The guide components are so positioned by an adjustment mechanism that one of guides (9) during the feed of the print carrier (1) to the plate cylinder (7) and the other guide component (10) during the outward movement of the print carrier comes into contact with the print carrier. The guide components are a roller pair or are formed as runners or as roller-shaped segments. They are provided off-centre on a traverse (11). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Führen eines Druckträgers beim Zu- und Abführen des Druckträgers zu bzw. von einem Plattenzylinder einer Druckmaschine.The invention relates to a device for guiding a printing medium when feeding and removing the printing medium to and from a plate cylinder of a printing press.

Auf dem Druckmaschinensektor wird den Forderungen nach einem Höchstmaß an Rationalisierung einerseits durch steigende Druckgeschwindigkeiten und andererseits durch Minimierungen bei den Rüstzeiten für die Druckmaschine Rechnung getragen. So ist beispielsweise ein Plattenwechsel an einer Druckmaschine - wenn er von dem Drucker manuell durchgeführt werden muß - ein relativ zeitaufwendiger Prozeß. Eine Automatisierung des Plattenwechsels (Entfernen der alten Platte und Spannen einer neuen Platte auf jeden Plattenzylinder der Druckmaschine) bringt hier eine erhebliche Zeitersparnis. Besonders bedeutsam wird ein automatischer Plattenwechsel, wenn Druckaufträge mit einer geringen Anzahl zu erstellender Druckprodukte auszuführen sind - was ein häufiges Plattenwechseln erforderlich macht. Eine Vorrichtung zum automatischen Plattenwechsel wird in der DE 41 30 359 A1 beschrieben.In the printing press sector, demands for maximum rationalization are met on the one hand by increasing printing speeds and on the other hand by minimizing makeready times for the printing press. For example, a plate change on a printing press - if it has to be carried out manually by the printer - is a relatively time-consuming process. Automating the plate change (removing the old plate and clamping a new plate onto each plate cylinder of the printing machine) saves a considerable amount of time. An automatic plate change becomes particularly important if print jobs have to be carried out with a small number of print products to be created - which makes frequent plate changes necessary. A device for automatic plate change is described in DE 41 30 359 A1.

Ausgehend vom Stand der Technik, liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zu schaffen, die ein zuverlässiges Zu- und Abführen eines Druckträgers zu bzw. von einem Plattenzylinder erlaubt.Starting from the prior art, the invention has for its object to provide a device that allows a reliable supply and discharge of a printing medium to or from a plate cylinder.

Die Aufgabe wird durch die Merkmale des Hauptanspruchs gelöst.The object is solved by the features of the main claim.

Durch die erfindungsgemäße Vorrichtung wird ein problemloses Führen des Druckträgers bei einem Plattenwechsel erzielt. Die beiden Leitelemente sorgen durch Niederhalten einmal dafür, daß die Oberfläche des Druckträgers nicht mit Maschinenteilen in Berührung kommt; hierdurch wird ein Beschädigen der empfindlichen Druckfläche wirksam verhindert. Da die Vorrichtung darüber hinaus so ausgebildet ist, daß stets das eine der beiden Leitelemente nur mit der Oberfläche des noch nicht abgedruckten, farbfreien Druckträgers (Druckplatte, Druckfolie) in Kontakt kommt, während das andere nur mit der Oberfläche des bereits abgedruckten, Farbe tragenden Druckträgers in Berührung kommt, wird ein Beschmutzen eines noch nicht abgedruckten Druckträgers, insbesondere beim Aufspannen auf den Plattenzylinder von vorneherein ausgeschlossen.The device according to the invention achieves problem-free guiding of the printing medium when changing plates. By holding down, the two guide elements ensure that that the surface of the print carrier does not come into contact with machine parts; this effectively prevents damage to the sensitive printing surface. Since the device is also designed so that one of the two guide elements only comes into contact with the surface of the not yet printed, color-free printing medium (printing plate, printing film), while the other only comes into contact with the surface of the already printed, color-bearing printing medium comes into contact, soiling of an as yet unprinted print carrier, in particular when clamping onto the plate cylinder, is excluded from the outset.

Gemäß einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist vorgesehen, daß es sich bei den beiden Leitelementen um ein Rollenpaar handelt. Günstig - bzw. bei gewissen Ausführungsformen erforderlich - ist auch die Ausgestaltung, anstelle durchgehender Rollen rollenförmige Segmente oder Kufen zu verwenden. Eine derartige Ausführungsform ist einmal kostengünstiger, kann sich aber auch als zweckmäßig erweisen oder als Muß entpuppen, um eine Kollision mit den Greifern der Klemmleisten der Klemm- und Spannvorrichtungen zu vermeiden.According to an advantageous development of the device according to the invention, it is provided that the two guide elements are a pair of rollers. Inexpensive - or required in certain embodiments - is also the design to use roller-shaped segments or runners instead of continuous rollers. Such an embodiment is less expensive, but can also prove to be expedient or must be turned out to be necessary to avoid a collision with the grippers of the terminal strips of the clamping and tensioning devices.

Gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung sind die wie auch immer konstruierten Leitelemente - außermittig auf einer Traverse angeordnet. Je nach eingeschwenkter Position kommt durch diesen Versatz stets nur das gewünschte Leitelement mit der Oberfläche des Druckträgers in Kontakt.According to a further embodiment of the device according to the invention, the guide elements, however constructed, are arranged eccentrically on a traverse. Depending on the pivoted position, this offset means that only the desired guide element comes into contact with the surface of the print carrier.

Zum Verschwenken der Traverse sieht eine kostengünstige Variante der erfindungsgemäßen Vorrichtung den folgenden Stellmechanismus vor. In den Endbereichen der Traverse sind zwei Reibräder drehbar gelagert. Diesen Reibrädern ist jeweils ein Freilauf zugeordnet, wobei ein Freilauf die entgegengesetzte Mitnahmerichtung des anderen aufweist. Die Traverse selbst ist in schwenkbar gelagerten Hebel federnd gelagert. Über eine Kurvensteurung werden die Reibräder während des Zu- oder Abführens eines Druckträgers an die Schmitzringe des Druckzylinders angedrückt. Entsprechend der auf die Drehrichtung des Plattenzylinders beim Zu- und Abführen des Druckträgers abgestimmten Mitnahmerichtungen der Freiläufe wird die Traverse mit den beiden Leitelementen automatisch in die gewünschten Positionen gebracht.An inexpensive variant of the device according to the invention provides the following adjusting mechanism for pivoting the crossbar. Two friction wheels are rotatably mounted in the end areas of the traverse. A freewheel is assigned to each of these friction wheels, with a freewheel opposite direction of entrainment of the other. The traverse itself is spring-mounted in a pivoted lever. Via a curve control, the friction wheels are pressed against the bearer rings of the printing cylinder while a pressure carrier is being fed in or out. The crosshead with the two guide elements is automatically brought into the desired positions in accordance with the driving directions of the freewheels which are coordinated with the direction of rotation of the plate cylinder when the pressure carrier is fed in and out.

Äquivalente Ausführungsformen zu dieser Art der Positionierung der Traverse sind gemäß vorteilhafter Weiterbildungen der erfindungsgemäßen Vorrichtung darin zu sehen, daß an der Traverse ein Hebel befestigt ist, der über ein Stellelement, beispielsweise über einen Stellzylinder mit zwei Arbeitsstellungen, einen Motor oder einen Magneten, betätigbar ist.Equivalent embodiments to this type of positioning of the crossmember can be seen according to advantageous developments of the device according to the invention in that a lever is fastened to the crossmember and can be actuated via an actuating element, for example an actuating cylinder with two working positions, a motor or a magnet .

Gemäß einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist zwischen den schwenkbaren Hebeln eine weitere Traverse vorgesehen, auf der zumindest ein Führungselement fixiert ist. Alternativ ist vorgesehen, das Führungselement starr am Zuführtisch anzubringen. Das Führungselement sorgt für eine sicheres Abführen der Platte zum Zuführtisch. Vorteilhafterweise sind die Führungselemente auf Lücke zwischen den Greifern der Kleimmleisten angeordnet.According to an advantageous development of the device according to the invention, a further crossmember is provided between the pivotable levers, on which at least one guide element is fixed. Alternatively, provision is made for the guide element to be rigidly attached to the feed table. The guide element ensures safe removal of the plate to the feed table. The guide elements are advantageously arranged in a gap between the grippers of the adhesive strips.

Vorteilhaft erweist sich darüber hinaus die Ausgestaltung, die Vorrichtung zum Zu- und Abführen des Druckträgers an einem schwenkbar gelagerten Schutz eines Druckwerkes zu befestigen. Gleichzeitig mit dem Schutz läßt sich dann die Vorrichtung entfernen, was zwangsläufig notwendig ist, wenn Arbeiten an den Walzen und Zylindern des Druckwerkes durchzuführen sind.In addition, the configuration of attaching the device for feeding and removing the printing medium to a pivotably mounted protection of a printing unit proves to be advantageous. The device can then be removed at the same time as the protection, which is inevitably necessary if work is to be carried out on the rollers and cylinders of the printing unit.

Die Erfindung wird anhand der nachfolgenden Figuren näher erläutert.The invention is explained in more detail with reference to the following figures.

Die Figuren 1 bis 5 zeigen eine vorteilfhafte Ausführungsform der erfindungsgemäßen Zu- und Abführvorrichtung für Druckplatten in den beiden Arbeitspositionen. Insbesondere zeigt:

Fig. 1
die Ausgangsstellung ( Position A ),
Fig. 2
die Position des Rollenpaares nach Einführen der Plattenvorderkante in die Klemmeinrichtung (Position B),
Fig. 3
die Stellung des Rollenpaares kurz vor dem Klemmen der Plattenhinterkante in der Klemm- und Spanneinrichtung,
Fig. 4
die Position des Rollenpaares bei Lösen der Plattenhinterkante aus der Klemm- und Spannvorrichtung (Position A) und
Fig. 5
die Stellung des Rollenpaares beim Abführen der Platte.
Figures 1 to 5 show an advantageous embodiment of the feed and discharge device according to the invention for printing plates in the two working positions. In particular shows:
Fig. 1
the starting position (position A),
Fig. 2
the position of the pair of rollers after inserting the front edge of the plate into the clamping device (position B),
Fig. 3
the position of the pair of rollers shortly before the rear edge of the plate is clamped in the clamping and tensioning device,
Fig. 4
the position of the pair of rollers when the rear edge of the plate is released from the clamping and tensioning device (position A) and
Fig. 5
the position of the pair of rollers when removing the plate.

Weiterhin zeigt:

Fig. 6
eine Seitenansicht des Rollenpaares mit einer ersten Ausführungsform eines vorteilhaften An- und Abstellmechanismus',
Fig. 7
eine Draufsicht auf die Ausführungsform gemäß Fig. 6,
Fig. 8
eine Seitenansicht des Rollenpaares mit einer weiteren Ausführungsform des vorteilhaften An- und Abstellmechanismus',
Fig. 9
eine Draufsicht auf die Ausführungsform gemäß Fig. 8,
Fig. 10
eine teilweisen vergrößerte Darstellung von Fig. 9 und
Fig. 11
eine Seitenansicht des Rollenpaares gemäß einer dritten vorteilhaften Ausbildung des An- und Abstellmechanismus'.
Furthermore shows:
Fig. 6
a side view of the pair of rollers with a first embodiment of an advantageous on and off mechanism,
Fig. 7
6 shows a top view of the embodiment according to FIG. 6,
Fig. 8
a side view of the pair of rollers with a further embodiment of the advantageous on and off mechanism,
Fig. 9
8 shows a plan view of the embodiment according to FIG. 8,
Fig. 10
a partial enlarged view of Fig. 9 and
Fig. 11
a side view of the pair of rollers according to a third advantageous embodiment of the on and off mechanism.

Die Figuren 1 bis 5 zeigen eine vorteilhafte Ausführungsform der erfindungsgemäßen Vorrichtung zum Zu- und Abführen von Druckträgern in den beiden Arbeitsstellungen (Position A, Position B). Die Ausführungsformen, mit denen die beiden unterschiedlichen Positionen (A, B) ansteuerbar sind, werden an späterer Stelle beschrieben.Figures 1 to 5 show an advantageous embodiment of the device according to the invention for feeding and removing pressure carriers in the two working positions (position A, position B). The embodiments with which the two different positions (A, B) can be controlled are described later.

Fig. 1 zeigt die Stellung des Rollenpaares 8 zu einem Zeitpunkt, wenn der über den Zuführtisch 2 geführte Druckträger 1 (Druckplatte oder Druckfolie) zwischen den Klemmflächen 4a, 5a der beiden Klemmleisten 4,5 der Vorderkantenklemmvorrichtung 3 plaziert ist. Ein Festklemmen der Vorderkante der Druckplatte 1 erfolgt dadurch, daß eine der beiden Klemmflächen 4a, 5a senkrecht zu der anderen Klemmfläche 4a, 5a bewegt wird. Wie allgemein üblich, ist die Klemmeinrichtung 3 in dem Zylinderkanal 6 des Plattenzylinders 7 einer nicht gesondert dargestellten Druckmaschine angeordnet. In dieser als Ausgangsstellung definierten Position A ist das Rollenpaar 8, bestehend aus den beiden Leitrollen 9, 10, von der Oberfläche des Plattenzylinders 7 abgestellt. Die beiden Leitrollen 9, 10 sind exzentrisch auf einer schwenkbar gelagerten Traverse 11 montiert.Fig. 1 shows the position of the pair of rollers 8 at a time when the print carrier 1 (printing plate or printing film) guided over the feed table 2 is placed between the clamping surfaces 4a, 5a of the two clamping strips 4, 5 of the leading edge clamping device 3. The front edge of the pressure plate 1 is clamped in that one of the two clamping surfaces 4a, 5a is moved perpendicular to the other clamping surface 4a, 5a. As is generally customary, the clamping device 3 is arranged in the cylinder channel 6 of the plate cylinder 7 of a printing machine, which is not shown separately. In this position A defined as the starting position, the pair of rollers 8, consisting of the two guide rollers 9, 10, is set down from the surface of the plate cylinder 7. The two idlers 9, 10 are mounted eccentrically on a swiveling crossbar 11.

Die Figuren 2 und 3 geben die Position des Rollenpaares 8 während des Aufziehens der Druckplatte 1 auf den Plattenzylinder 7 wieder (Position B). Durch eine Schwenkbewegung der Traverse 11 schwenkt das Rollenpaar in Position B auf einen definierten Abstand zum Plattenzylinder. Die Leitrolle 9 hält die Platte nieder, während sich der Plattenzylinder 7 in Pfeilrichtung um seine Mittelachse dreht.Figures 2 and 3 show the position of the pair of rollers 8 during the mounting of the printing plate 1 on the plate cylinder 7 again (position B). The pair of rollers swivels in position B to a defined distance from the plate cylinder by a pivoting movement of the crossmember 11. The guide roller 9 holds the plate down while the plate cylinder 7 rotates in the direction of the arrow about its central axis.

Wie aus Fig. 3 ersichtlich, bleibt das Rollenpaar 8 in dieser Stellung, bis die Hinterkante der Druckplatte 1 nach einer Umdrehung des Plattenzylinders zwischen den Klemmflächen 15a, 16a der Klemmleisten 15, 16 der Hinterkantenklemm- und spannvorrichtung 14 fixiert wird. Vorrichtungen zum Klemmen und Spannen von Druckplatten 1 sind bereits zur Genüge bekannt geworden. Um mögliche Ausführungsformen für derartige Vorrichtungen zu nennen, sei auf die DE 41 28 994 A1 oder die DE 41 29 831 A1 verwiesen. Um ein sicheres Einführen der Plattenvorderkante in die Klemmvorrichtung sicherzustellen, ist ein Führungselement 18 vorgesehen, das Teil des Zuführtisches 2 ist.3, the pair of rollers 8 remains in this position until the rear edge of the pressure plate 1 is fixed between the clamping surfaces 15a, 16a of the clamping strips 15, 16 of the trailing edge clamping and tensioning device 14 after one rotation of the plate cylinder. Devices for clamping and tensioning printing plates 1 have already become well known. To name possible embodiments for such devices, reference is made to DE 41 28 994 A1 or DE 41 29 831 A1. In order to ensure a safe insertion of the front edge of the plate into the clamping device, a guide element 18 is provided, which is part of the feed table 2.

Zum Entfernen der Druckplatte 1 von dem Plattenzylinder 7 schwenkt das Rollenpaar 8 in die zweite Position (Position A). Sobald die Klemm- und Spannvorrichtung 14 die Plattenhinterkante freigibt, springt diese infolge der Eigenspannung aus der Halterung heraus und kommt in Kontakt mit der Oberfläche der Leitrolle 10. Während der Drehung des Plattenzylinders 7 und damit des Abwickelns der Druckplatte 1 wird diese an der Leitrolle 10 vorbeigeführt und auf den Zuführtisch 2 geschoben. Vorteilhafterweise unterstützen die Führungselemente 18 den 'Auswurf' der Druckplatte 1.To remove the printing plate 1 from the plate cylinder 7, the pair of rollers 8 swings into the second position (position A). As soon as the clamping and tensioning device 14 releases the plate trailing edge, it springs out of the holder due to the internal stress and comes into contact with the surface of the guide roller 10. During the rotation of the plate cylinder 7 and thus the unwinding of the pressure plate 1, it becomes on the guide roller 10 passed and pushed onto the feed table 2. The guide elements 18 advantageously support the 'ejection' of the pressure plate 1.

Zeichnerisch ist dieser Sachverhalt in den Figuren 4 und 5 dargestellt.This state of affairs is illustrated in FIGS. 4 and 5.

Fig. 6 zeigt eine Seitenansicht des Rollenpaares mit einer ersten Ausführungsform eines An- und Abstellmechanismus'; in Fig. 7 ist die entsprechende Vorrichtung in Draufsicht wiedergegeben. Die Leitrollen 9, 10 sind starr auf einer drehbar gelagerten Traverse 11 - im dargestellten Fall handelt es sich um einen Vierkant - gelagert. Die beiden Leitrollen 9, 10 setzen sich aus exzentrisch gelagerten rollenförmigen Segmenten 49 zusammen, die so angeordnet sind, daß sich die beiden Stellungen (Position A, Position B) der Leitrollen 9, 10 durch Verdrehen der Traverse 11 um einen gewissen Winkel realisieren lassen. Der Abstand zwischen den rollenförmigen Segmente 49 ist so bemessen, daß eine Kollision mit den Klemmleisten 4,15 der Klemm- und Spannvorrichtungen 3,14 am Plattenzylinder 7 ausgeschlossen ist.Fig. 6 shows a side view of the pair of rollers with a first embodiment of an on and off mechanism; in Fig. 7 the corresponding device is shown in plan view. The guide rollers 9, 10 are rigidly mounted on a rotatably mounted crossmember 11 - in the case shown it is a square. The two guide rollers 9, 10 are composed of eccentrically mounted roller-shaped segments 49 which are arranged in such a way that the two positions (position A, position B) of the guide rollers 9, 10 can be realized by rotating the crossbar 11 by a certain angle. The distance between the roller-shaped segments 49 is dimensioned such that a collision with the clamping strips 4.15 of the clamping and tensioning devices 3.14 on the plate cylinder 7 is excluded.

Die Endbereiche 52 der Traverse 11 sind über Buchsen 53 drehbar in beidseitig angeordneten Lagerhebeln 54 gelagert. Die Endbereiche 52 der Traverse 11 tragen Reibräder 42. Jedem Reibrad 42 ist ein Freilauf 43, 44 mit entgegengesetzter Mitnahmerichtung auf Antriebs- und Bedienerseite zugeordnet ist. Die Welle 55 ist drehbar in den Lagerhebeln 54 und den mit dem Druckwerksschutz 29 starr verbundenen Befestigungsteilen 54 gelagert. An dem Befestigungsteil 53 auf der Antriebsseite ist ein Bolzen 51 angebracht, der mit einer Kurve 28 zusammenwirkt. Angesteuert über die Kurve 28 werden die das Rollenpaar 8 tragenden Lagerhebel 54 um die Mittelachse der Welle 55 gedreht. Hierbei wird Arbeit gegen die Kraft der Zugfeder 50 geleistet.The end regions 52 of the crossmember 11 are rotatably supported by bushings 53 in bearing levers 54 arranged on both sides. The end regions 52 of the crossmember 11 carry friction wheels 42. Each friction wheel 42 is assigned a freewheel 43, 44 with the opposite driving direction on the drive and operator side. The shaft 55 is rotatably supported in the bearing levers 54 and the fastening parts 54 rigidly connected to the printing unit protection 29. A bolt 51, which interacts with a curve 28, is attached to the fastening part 53 on the drive side. Driven via the curve 28, the bearing levers 54 carrying the pair of rollers 8 are rotated about the central axis of the shaft 55. Here work is done against the force of the tension spring 50.

Durch die Schwenkbewegung der Lagerhebel 54 werden die Reibräder 42, die auf ihrem Umfang jeweils einen Gummiring 48 tragen, auf die Schmitzringe 33 des Plattenzylinders 7 angedrückt. Die Mitnahmerichtung der Freiläufe 43, 44 ist derart ausgelegt, daß im Falle des Platteneinzugs die Leitrolle 9 und im Falle des Plattenauswurfs die Leitrolle 10 in Nähe der Druckplatte 1 steht.The pivoting movement of the bearing levers 54 causes the friction wheels 42, each of which has a rubber ring 48 on its circumference, to be applied to the bearer rings 33 of the plate cylinder 7 pressed. The driving direction of the freewheels 43, 44 is designed in such a way that the guide roller 9 is in the case of the plate feed and the guide roller 10 is in the vicinity of the pressure plate 1 in the case of the plate ejection.

Zur Begrenzung der Drehbewegung der Traverse 11 und des darauf montierten Rollenpaares 8 bzw. zur Arretierung des Rollenpaares 8 in den beiden Endstellungen (Position A, Position B) sind an den beiden äußeren rollenförmigen Segmenten 49 Begrenzungsstifte 45 angebracht, die in den beiden geforderten Winkelstellungen an den Kanten der entsprechend ausgebildeten Befestigungsteile 56 anschlagen. Die Anschlagpunkte sind in der Fig. 6 mit 'x' gekennzeichnet.To limit the rotational movement of the crossmember 11 and the pair of rollers 8 mounted thereon or for locking the pair of rollers 8 in the two end positions (position A, position B), 49 limiting pins 45 are attached to the two outer roller-shaped segments, which engage in the two required angular positions strike the edges of the appropriately designed fastening parts 56. The attachment points are marked with 'x' in FIG. 6.

Die Fig. 8 zeigt eine Seitenansicht des erfindungsgemäßen Rollenpaares 8 mit einer weiteren vorteilhaften Ausführungsform des An- und Abstellmechanismus'. Die Leitrollen 9, 10, die im gezeigten Fall wiederum aus einzelnen rollenförmigen Segmenten 49 bestehen, sind starr auf einer drehbar gelagerten Traverse 11, im dargestellten Fall auf einem Vierkant, befestigt. Da die rollenförmigen Segmente 49 jeder der beiden Leitrollen 9, 10 exzentrischen angeordnet sind, lassen sich durch Drehen der Traverse 11 die beiden gewünschten Positionen einstellen.8 shows a side view of the pair of rollers 8 according to the invention with a further advantageous embodiment of the engagement and disengagement mechanism. The guide rollers 9, 10, which in turn consist of individual roller-shaped segments 49 in the case shown, are rigidly attached to a rotatably mounted crossmember 11, in the case shown on a square. Since the roller-shaped segments 49 of each of the two guide rollers 9, 10 are arranged eccentrically, the two desired positions can be set by rotating the crossmember 11.

Die Traverse 11 trägt beidseitig Lager 20, die jeweils in einem Langloch 21 der Befestigungsteile 27 auf Federn 22 gelagert sind. Auf die federnd gelagerte Traverse 11, mit den Leitrollen 9, 10 wird, gesteuert über eine Kurve 28, zum Einstellen der beiden Positionen des Rollenpaares 8 eine Kraft ausgeübt. Wie aus Fig. 8, insbesondere jedoch aus Fig. 9 ersichtlich ist, sind auf der Traverse 11 Reibräder 42 drehbar gelagert. Die Reibräder 42 tragen auf ihrem Umfang jeweils einen überstehenden Gummiring 48. Eine weitere Traverse 25 koppelt die beiden Hebel 24 starr miteinander. Wird auf die beiden Hebel 24 und damit auf die Traverse 11 und die Leitrollen 9, 10 mittels der Kurvensteuerung eine Kraft ausgeübt, werden die Reibräder 42 auf die Schmitzringe 33 des Plattenzylinders 7 angedrückt.The crossmember 11 carries bearings 20 on both sides, which are each mounted in an elongated hole 21 of the fastening parts 27 on springs 22. A force is exerted on the spring-mounted crossmember 11, with the guide rollers 9, 10, controlled via a curve 28, in order to adjust the two positions of the roller pair 8. As can be seen from FIG. 8, but in particular from FIG. 9, 11 friction wheels 42 are rotatably mounted on the cross member. The friction wheels 42 each have a protruding rubber ring 48 on their circumference. A further cross member 25 couples the two levers 24 rigidly to one another. Is on the two levers 24 and thus on the crossbar 11th and the guide rollers 9, 10 exert a force by means of the cam control, the friction wheels 42 are pressed onto the bearer rings 33 of the plate cylinder 7.

Die Reibräder 42 besitzen jeweils einen Freilauf 43, 44, wobei der Freilauf 44 auf der Bedienerseite eine andere Mitnahmerichtung aufweist als der Freilauf 43 auf der Antriebsseite. Die Mitnahmerichtung der Freiläufe 43, 44 ist derart gewählt, daß die Traverse 11 mit den Leitrollen 9, 10 im Falle des Platteneinzugs in die Position B und im Falle des Plattenauswurfs in die Position A geschwenkt wird. Um eine Fixierung des Rollenpaares 8 in der jeweils angesteuerten Endstellung zu erzielen, sind an den Stirnseiten der Rolle 9, bzw an den Stirnseiten der beiden äußeren rollenförmigen Segmente, Stifte 45 vorgesehen, die mit einer entsprechend angepaßten Form der Befestigungsteile 27 zusammenwirken. Die beiden Anlegestellen für den Begrenzungsstift 45 an dem Befestigungsteil 27 sind in Fig. 8 mit jeweils einem 'x' markiert.The friction wheels 42 each have a freewheel 43, 44, the freewheel 44 on the operator side having a different driving direction than the freewheel 43 on the drive side. The direction of travel of the freewheels 43, 44 is selected such that the crossmember 11 with the guide rollers 9, 10 is pivoted into position B in the case of plate insertion and into position A in the case of plate ejection. In order to achieve a fixation of the pair of rollers 8 in the respectively controlled end position, pins 45 are provided on the end faces of the roller 9 or on the end faces of the two outer roller-shaped segments, which interact with a correspondingly adapted shape of the fastening parts 27. The two contact points for the limiting pin 45 on the fastening part 27 are marked with an 'x' in FIG. 8.

Desweiteren ist, wie der Fig. 8 in Seitenansicht und den Fig. 9, 10 in Draufsicht zu entnehmen ist, eine weitere Traverse 26 (Vierkant) starr in den beidseitig angeordneten Hebeln 24 gelagert. Auf dieser Traverse 26 sind die Führungselemente 18 mittels beidseitig angeordneter Sicherungsringe fixiert. Die Traverse 26 mit den Führungselementen 18 macht infolge der starren Kopplung die Schwenkbewegung des Hebels 24 mit. Die Führungselemente 18 sind derart auf der Traverse 26 angeordnet, daß sie nicht mit den Klemmleisten 4, 5, 15, 16 der Klemm- und Spannvorrichtungen 3, 14 für die Plattenvorder- und hinterkante kollidieren.Furthermore, as can be seen in FIG. 8 in a side view and FIGS. 9, 10 in a top view, a further cross member 26 (square) is rigidly mounted in the levers 24 arranged on both sides. The guide elements 18 are fixed on this cross member 26 by means of retaining rings arranged on both sides. The cross member 26 with the guide elements 18 makes the pivoting movement of the lever 24 with the rigid coupling. The guide elements 18 are arranged on the crossmember 26 such that they do not collide with the clamping strips 4, 5, 15, 16 of the clamping and tensioning devices 3, 14 for the front and rear edge of the plate.

Die in den Fig. 9 und 10 gezeigten rollenförmigen Segmente 49 bestehen aus symmetrisch geformten, scheibenförmigen Teilen 34, die mittels eines Stiftes 36 und über Sicherungsringe 37 zusammengehalten und über letztere zusätzlich auf der Traverse 11 außermittig fixiert sind. In einer in Umfangsrichtung angebrachten Ausnehmung der scheibenförmigen Teile 34 ist drehbar ein Ring 35 gelagert. Sobald die Druckplatte 1 mit der Umfangsfläche der Ringe 35 der jeweils angestellten rollenförmigen Segmente 49 in Berührung kommt, rollen diese auf der Druckplatte 1 ab.The roller-shaped segments 49 shown in FIGS. 9 and 10 consist of symmetrically shaped, disk-shaped parts 34 which are connected by means of a pin 36 and over Circlips 37 held together and are additionally fixed off-center on the crossbar 11 via the latter. A ring 35 is rotatably mounted in a recess in the disk-shaped parts 34 made in the circumferential direction. As soon as the pressure plate 1 comes into contact with the circumferential surface of the rings 35 of the roller-shaped segments 49 employed, they roll on the pressure plate 1.

Wie in Fig. 8 gezeigt, ist die Vorrichtung zum Zuführen und Auswerfen einer Druckplatte 1 über beidseitig angeordnete, gewinkelte Befestigungsteile 27 mit dem Druckwerkschutz 29 verschraubt. Der Übersichtlichkeit halber sind diese Befestigungsteile 29 in der Draufsicht nach den Fig. 9 und 10 weggelassen. Der Druckwerkschutz 29 ist mit einem verschwenkbar um die Achse 31 gelagerten Hebel 30 verschraubt. Um Arbeiten am Druckkwerk durchführen zu können, muß der Drucker den Schutz 29 hochklappen. Vorteilhafterweise wird durch die gewählte Konstruktion die Plattenzuführvorrichtung gleichzeitig wegbewegt, womit ein ungehinderter Zugang zu dem Druckwerk, beispielsweise zu Reinigungszwecken, erreicht wird.As shown in FIG. 8, the device for feeding and ejecting a printing plate 1 is screwed to the printing unit guard 29 via angled fastening parts 27 arranged on both sides. For the sake of clarity, these fastening parts 29 are omitted in the top view according to FIGS. 9 and 10. The printing unit protection 29 is screwed to a lever 30 pivotably mounted about the axis 31. In order to be able to carry out work on the printing unit, the printer must fold up the protection 29. Advantageously, due to the selected construction, the plate feed device is moved away at the same time, whereby unimpeded access to the printing unit, for example for cleaning purposes, is achieved.

In Fig. 11 ist ein weiterer An- und Abstellmechanismus für das Rollenpaar 8 dargestellt. Mit Ausnahme dieses Mechanismus' stimmen die übrigen Elemente mit denen aus der Fig. 9 bzw der Fig. 10 überein. Zum Verschwenken der Traverse 11 ist mit dem Rollenzapfen 41 ein Hebel 46 gekoppelt. Dem Hebel 46 ist ein Stellelement 47 zugeordnet, das durch Beaufschlagung des Hebels mit einer Kraft F die erforderlichen Stellvorgänge in Abhängigkeit von der Winkelstellung der Druckmaschine vornimmt. Bei diesem Stellelement handelt es sich beispielsweise um einen Hubzylinder mit zwei Arbeitsstellungen oder um einen Magneten. Selbstverständlich kann auch ein Elektromotor zur Anwendung kommen.In Fig. 11 a further on and off mechanism for the pair of rollers 8 is shown. With the exception of this mechanism, the other elements correspond to those from FIG. 9 or FIG. 10. A lever 46 is coupled to the roller pin 41 for pivoting the cross member 11. The lever 46 is assigned an actuating element 47 which, by applying a force F to the lever, performs the necessary actuating processes as a function of the angular position of the printing press. This control element is, for example, a lifting cylinder with two working positions or a magnet. An electric motor can of course also be used.

BezugszeichenlisteReference list

11
Druckplatte, DruckfoliePrinting plate, printing film
22nd
ZuführtischFeed table
33rd
Klemmvorrichtung 'Vorderkante'Clamping device 'front edge'
44th
KlemmleisteTerminal block
4a4a
KlemmflächeClamping surface
55
KlemmleisteTerminal block
5a5a
KlemmflächeClamping surface
66
ZylinderkanalCylinder channel
77
PlattenzylinderPlate cylinder
88th
RollenpaarPair of roles
99
Leitrolle 'Platteneinzug'Guide roller 'plate feeder'
1010th
Leitrolle 'Plattenauswurf'Guide roller 'plate ejection'
1111
Traversetraverse
1212th
StelleinrichtungActuator
1313
DrehachseAxis of rotation
1414
Klemmvorrichtung 'Hinterkante'Clamping device 'rear edge'
1515
KlemmleisteTerminal block
15a15a
KlemmflächeClamping surface
1616
KlemmleisteTerminal block
16a16a
KlemmflächeClamping surface
1717th
KurvensteuerungCurve control
1818th
FührungselementGuide element
1919th
Traversetraverse
2020th
Lagercamp
2121
LanglochLong hole
2222
Federfeather
2323
HebelflächeLeverage area
2424th
Hebellever
2525th
Traversetraverse
2626
Traversetraverse
2727
BefestigungsteilFastener
2828
KurveCurve
2929
Schutzprotection
3030th
schwenkbarer Hebelswiveling lever
3131
Drehachse 'Schutz'Protection axis
3232
Achszapfen PlattenzylinderAxle journal plate cylinder
3333
SchmitzringBearer ring
3434
Scheibedisc
3535
Ringring
3636
Stiftpen
3737
SicherungsringCirclip
3838
AbstandshalterSpacers
3939
SicherungsringeCirclips
4040
ZapfenCones
4141
ZapfenCones
4242
ReibradFriction wheel
4343
Freilauf ASFreewheel AS
4444
Freilauf BSFreewheel BS
4545
BegrenzungsstiftLimiting pin
4646
Hebellever
4747
StellelementActuator
4848
GummiringRubber ring
4949
rollenförmiges Segmentroll-shaped segment
5050
ZugfederTension spring
5151
Bolzenbolt
5252
ZapfenCones
5353
BuchseRifle
5454
LagerhebelBearing lever
5555
Wellewave
5656
BefestigungsteilFastener

Claims (9)

Vorrichtung zum Führen eines Druckträgers beim Zu- und Abführen des Druckträgers zu bzw. von einem Plattenzylinder einer Druckmaschine,
dadurch gekennzeichnet,
daß achsparallel zu dem Druckzylinder (7) ein Paar von Leitelementen (8; 9, 10) vorgesehen ist, wobei die Leitelemente (8; 9,10) mittels eines Stellmechanismus' (12) derart positioniert werden, daß jeweils eines der Leitelemente (9) während des Zuführens des Druckträgers (1) auf den Plattenzylinder (7) (Position B) und das andere Leitelement (10) während des Herausführens des Druckträgers (1) (Position A) mit dem Druckträger (1) in Kontakt kommt.Device for guiding a print carrier when feeding and removing the print carrier to or from a plate cylinder of a printing press,
characterized by
that a pair of guide elements (8; 9, 10) is provided axially parallel to the pressure cylinder (7), the guide elements (8; 9, 10) being positioned by means of an adjusting mechanism (12) such that one of the guide elements (9 ) while the print carrier (1) is being fed onto the plate cylinder (7) (position B) and the other guide element (10) comes into contact with the print carrier (1) while the print carrier (1) (position A) is being brought out. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß es sich bei den Leitelementen (8) um ein Rollenpaar (9,10) handelt.Device according to claim 1,
characterized by
that the guide elements (8) are a pair of rollers (9, 10). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Leitelemente (8) als rollenförmige Segmente (49) oder als Kufen ausgebildet sind.Device according to claim 1,
characterized by
that the guide elements (8) are designed as roller-shaped segments (49) or as runners. Vorrichtung nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
daß die Leitelemente (9,10) außermittig auf einer Traverse (11) angeordnet sind.Device according to claim 2 or 3,
characterized by
that the guide elements (9, 10) are arranged eccentrically on a crossmember (11). Vorrichtung nach Anspruch 1 oder 4,
dadurch gekennzeichnet,
daß der Verstellmechanismus (12) aus folgenden Elementen besteht: - aus zwei Reibrädern (42), die auf der Traverse (11) drehbar gelagert sind, - aus den Reibrädern zugeordneten Freiläufen (43, 44) mit entgegegesetzten Mitnahmerichtungen, - aus mindestens einem schwenkbaren Hebel (54), in dem die Traverse (11) gelagert ist, und - aus einer Kurvensteuerung, die die Reibräder (42) während des Wechselns des Druckträgers (1) an die Schmitzringe (33) des Plattenzylinders (7) andrückt. Device according to claim 1 or 4,
characterized by
that the adjustment mechanism (12) consists of the following elements: - From two friction wheels (42) which are rotatably mounted on the cross member (11), - from the friction wheels assigned freewheels (43, 44) with opposite driving directions, - From at least one pivotable lever (54) in which the crossmember (11) is mounted, and - From a cam control, which presses the friction wheels (42) while changing the pressure carrier (1) against the bearer rings (33) of the plate cylinder (7). Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß an der Traverse (11) ein Hebel (46) angeordnet ist, der über eine Stellelement (47) betätigbar ist.Device according to claim 4,
characterized by
that a lever (46) is arranged on the crossmember (11) and can be actuated via an adjusting element (47). Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet,
daß es sich bei dem Stellelement (47) um einen Stellzylinder mit zwei Arbeitspositionen, um einen Magneten oder um einen Elektromotor handelt.Apparatus according to claim 6,
characterized by
that it is in the actuating element (47) is an actuating cylinder with two working positions, a magnet or an electric motor. Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,
daß starr an den schwenkbar gelagerten Hebeln (24) eine Traverse (26) angebracht ist, auf der zumindest ein Führungselement (18) fixiert ist.Device according to claim 5,
characterized by
that a crossbar (26) is rigidly attached to the pivotably mounted levers (24), on which at least one guide element (18) is fixed. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Zu- und Abführvorrichtung (2, 8) für den Druckträger (1) an einem schwenkbar gelagerten Druckwerkschutz (29) befestigt ist.Device according to claim 1,
characterized by
that the feed and discharge device (2, 8) for the printing medium (1) is attached to a pivotally mounted printing unit protection (29).
EP95104640A 1994-04-26 1995-03-29 Method and device for guiding a printing support Expired - Lifetime EP0679513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4414443A DE4414443C1 (en) 1994-04-26 1994-04-26 Device for guiding a print carrier
DE4414443 1994-04-26

Publications (3)

Publication Number Publication Date
EP0679513A2 true EP0679513A2 (en) 1995-11-02
EP0679513A3 EP0679513A3 (en) 1996-11-13
EP0679513B1 EP0679513B1 (en) 2002-06-12

Family

ID=6516413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104640A Expired - Lifetime EP0679513B1 (en) 1994-04-26 1995-03-29 Method and device for guiding a printing support

Country Status (5)

Country Link
US (1) US5738015A (en)
EP (1) EP0679513B1 (en)
JP (1) JP3790563B2 (en)
CA (1) CA2144194C (en)
DE (2) DE4414443C1 (en)

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EP0712725A3 (en) * 1994-11-10 1996-06-05 Roland Man Druckmasch
EP1407881A1 (en) * 2002-10-11 2004-04-14 MAN Roland Druckmaschinen AG Method for mounting and removing flexible printing plates
WO2005007405A2 (en) * 2003-07-11 2005-01-27 Koenig & Bauer Aktiengesellschaft Devices and methods for raising and/or lowering a printing form
DE102008019937A1 (en) 2007-05-14 2008-11-20 Heidelberger Druckmaschinen Ag Apparatus for feeding printing plates to a printing plate cylinder

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DE10238177B3 (en) * 2002-08-21 2004-02-05 Koenig & Bauer Ag Web-fed printing machine has printer unit printing width of six axially adjacent pages, with superstructure, at least one roller and folder and two printing towers
GB9509479D0 (en) * 1995-05-10 1995-07-05 Btr Plc Manipulation of printing blankets
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Also Published As

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DE4414443C1 (en) 1995-11-30
EP0679513A3 (en) 1996-11-13
JPH07290690A (en) 1995-11-07
DE59510234D1 (en) 2002-07-18
CA2144194C (en) 1999-06-01
EP0679513B1 (en) 2002-06-12
CA2144194A1 (en) 1995-10-27
JP3790563B2 (en) 2006-06-28
US5738015A (en) 1998-04-14

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