EP0734859A1 - Device for exchanging printing plates - Google Patents

Device for exchanging printing plates Download PDF

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Publication number
EP0734859A1
EP0734859A1 EP96100378A EP96100378A EP0734859A1 EP 0734859 A1 EP0734859 A1 EP 0734859A1 EP 96100378 A EP96100378 A EP 96100378A EP 96100378 A EP96100378 A EP 96100378A EP 0734859 A1 EP0734859 A1 EP 0734859A1
Authority
EP
European Patent Office
Prior art keywords
printing form
printing
unit
loading unit
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96100378A
Other languages
German (de)
French (fr)
Other versions
EP0734859B1 (en
Inventor
Jacques Métrope
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
Goss International Montataire SA
Original Assignee
Heidelberger Druckmaschinen AG
Heidelberg Harris SA
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, Heidelberg Harris SA filed Critical Heidelberger Druckmaschinen AG
Publication of EP0734859A1 publication Critical patent/EP0734859A1/en
Application granted granted Critical
Publication of EP0734859B1 publication Critical patent/EP0734859B1/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 changing printing forms on cylinders of printing machines, which comprises a pivotable printing form loading unit, which includes a printing form feed and a printing form removal unit, the printing form loading unit being pivotable into a working position on the channel of a printing form cylinder with clamping devices and into a loading position , in which the printing form loading unit has been withdrawn from the working position.
  • a plate changing device for printing machines has become known from the prior art, EP 0519 583.
  • a plate holding unit is moved up and down by a bevel gear arranged above the printing unit.
  • a rack which is provided on the rear part of the plate holding unit, meshes with a gear arranged on a bevel gear shaft, whereby a vertical movement of the plate holding unit can be achieved.
  • EP 0 530 577 A1 discloses a device for positioning a magazine which serves for automatic printing plate change.
  • a magazine that can be moved into several positions fits harmoniously into the overall machine.
  • a printing plate change position a position for exchanging the printing plates in the magazine, as well as a service and a normal operating position can be adopted.
  • the magazine can be moved in a vertical guide and pivoted about a horizontal axis; there are also drives for moving and tilting the magazine intended. With this configuration, it is possible to cover the delivery side of a sheet-fed printing machine in the normal operating position of the magazine, so that it functions as protection.
  • EP 0 520 594 A1 shows a printing form changing device on printing machines.
  • a printing form magazine is pivotally mounted between a working and a loading position.
  • rotatable rollers are provided which support the magazine on the printing form cylinder when changing the printing form - i.e. when the magazine is positioned against the clamping device of the printing form cylinder - in order to hold the magazine in position during the printing form change.
  • the object of the invention is to optimize a printing form changing device in such a way that the accessibility to printing unit components is not restricted by the printing form changing device.
  • An advantage of the solution according to the invention is above all the fact that in the contact area between the printing form and the holding element, when the old and supplying the new printing form are removed, moving adjustment elements can be dispensed with, since the inherent elasticity of the printing form is used both when removing and when applying becomes.
  • the swiveling of the printing form magazine allows unhindered access to the printing unit and unhindered access to the magazine in its loading position - for example from a platform.
  • the inlet area of the holding element to the printing form removal compartment of the printing form loading unit, so that a continuous conveying plane is created.
  • the conveying devices are mounted on the holding element in such a way that they extend into the conveying plane of the printing form removal compartment.
  • a protective device can be used in the inactive state - during the printing form change - to support the printing form loading unit, a separate support device or an adjustment to the printing unit cylinder can be omitted.
  • a roller that is already in the machine - for example the dampening roller - can be used; a separate pressure unit can be omitted.
  • locking means which can be activated via a separate actuating unit.
  • Preloaded levers or hooks are provided as detents in the exemplary embodiment. These can be displaceably mounted on guides or stationary in the printing form loading unit.
  • the pivotable printing form loading unit is in a vertical loading position.
  • the pivotable printing form loading unit 2 comprises a printing form removal compartment 2.1 and a printing form feed compartment 2.2.
  • a movable locking device 3 is provided, with which a printing form 14 to be removed can be completely drawn into the printing form removal compartment 2.1.
  • a hook 4 By means of a hook 4, a printing form 14 to be applied - with angled front and rear edges 15, 16 - is held in a vertical position in the printing form feed compartment 2.2.
  • the rear edge 16 can be released by an actuating unit 23 moving the hook 4.
  • a swivel unit 21 - here represented schematically as a piston / cylinder unit - the printing forme loading unit 2 can be set against a holding element 5 about a pivot axis 24 and a stopping point 26.
  • the printing form loading unit 2 has an actuating unit 29 above the printing form removal compartment 2.1, with which the locking device 3 can be displaced parallel to the printing form removal compartment 2.1 by means of a link guide 31.
  • the locking device 3 comprises a rotatably mounted lever 30 which is spring-loaded by means of a prestressing element 28 and which grips the rear edge 16 of a printing form 14 to be removed which enters the printing form removal compartment 2.1.
  • both a protective device 8, which serves simultaneously as a support for the printing form loading unit 2 pivoted into its working position, and a holding element 5 are provided on the printing unit, consisting of a transfer cylinder 10 and a printing form cylinder 12, both a protective device 8, which serves simultaneously as a support for the printing form loading unit 2 pivoted into its working position, and a holding element 5 are provided.
  • the holding element 5 and the protective device 8 can both be pivoted via actuating units 18 and 20 - it being possible to design the actuating units 18 and 20 as pneumatic cylinders, electric motors or the like.
  • the printing form 14 currently located on the circumference of the printing form cylinder 12, but to be removed therefrom, is fastened with front and rear edges 15, 16 in a channel 17 of the printing form cylinder 12.
  • an automatic clamping device 1 which clamps the printing forms 14 and 22, respectively.
  • the pivotable holding element 5 already mentioned has an upper guide surface 9 and a lower guide surface 11, between which a funnel-shaped inlet area 13 is formed.
  • the adjusting unit 18 pivots the protective device 8 in such a way that it serves to support the front part of the printing form loading unit 2.
  • the conveyors 6 grip the rear side of the new printing form 22; the hook 4 is then actuated by the actuating unit 23, so that the rear edge 16 of the printing form 22 is exposed in the printing form feed compartment 2.2.
  • the roller 7 is now positioned against the surface of the printing plate 14 located on the printing form cylinder 12.
  • This roller 7 can be an existing roller, such as a dampening roller or the like, in any case no separate pressure roller is required .
  • the printing couple cylinders 12 slowly rotate backwards until the channel 17 of the lower guide surface 11 of the holding element 5 is opposite. Then the automatic clamping device 1 releases the rear edge 16 of the printing form 14 in order to close again immediately in order to continue to fix the front edge 15.
  • the rear edge 16 runs into the inlet area 13, through which it reaches the printing form removal compartment 2.1 of the printing form loading unit 2 placed on the holding element 5, as shown in FIG. 3.
  • the front area of the printing form 22 to be applied is gripped by the conveying devices 6 below the holding element 5, the printing form 22 to be newly applied is thereby in the Printing form feed tray 2.2 fixed. Supported by the roller 7 placed on the surface of the printing form to be removed, the printing form 14 is inserted into the printing form removal compartment 2.1 of the printing form loading unit 2.
  • the actuating unit 29 is provided with a link guide 31, on which the locking device 3 together with the pretensioned lever 30 is received.
  • the removed printing form 14 is removed in this way from the inlet area 13 of the holding element 5, with which the front area of the already seized printing form 22 to be reapplied according to FIG. 6 is now set against the surface of the printing form cylinder 12.
  • the front edge 15 of the new printing form 22 to be applied to the lateral surface of the printing form cylinder 12 is still held by the conveying devices 6; After immersion in the channel 17, the front edge 15 is clamped by the automatic holding devices 1 and the printing form 22 can be lifted to the cylinder circumference of the printing form cylinder 12, since the rear edge 16 is released by the hook 4.
  • a roller 7 to be set against the printing form 22 according to FIG. 7 considerably facilitates the mounting of the printing form 22 and nestles it against the curvature of the surface of the printing form cylinder 12.
  • the rear edge 16 of the new printing form 22 to be applied approaches the conveying devices 6 below the holding element 5, they release the printing form 22 completely, so that it is supported by the roller 7 on the circumference of the printing form cylinder 12. Since the inside of the printing form feed compartment 2.2 and printing form removal compartment 2.1 are provided with a friction-reducing coating that protects the printing form top, damage to the printing forms is excluded.
  • the protective device 8 shows how both the front and the rear edge 15, 16 of the printing form 22 are pressed in order to achieve a minimal gap.
  • the protective device 8 pivots back into the gap between the printing unit cylinders 10, 12 via the actuating unit 18, the holding element 5 is brought into a position which is set away from the circumference of the printing form cylinder 12 by means of the setting unit 20, and the pivotable printing form loading unit 2 can now pivot back into its loading position.

Abstract

The device exchanges printing plates on the cylinders of printing presses. It uses a pivoted plate loading unit (2) with a feed chamber and a removal chamber. The unit is not only pivoted in a working position by the channel (17) of a cylinder (12) with clamps (1) but also in a loading position, in which the unit is pulled back from the working position. The unit pivoted in a vertical loading position is pivoted to a holder (5) on which an intake region (13) is provided for a printing plate (14) to be removed from the cylinder and guide devices (6) for a plate to be mounted on the cylinder.

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Wechseln von Druckformen auf Zylindern von Druckmaschinen, die eine schwenkbare Druckformladeeinheit umfaßt, die ein Druckformzuführ- und eine Druckformentfernungseinheit einschließt, wobei die Druckformladeeinheit in eine Arbeitsposition an den Kanal eines Druckformzylinders mit Klemmeinrichtungen und in eine Ladeposition verschwenkbar ist, in der die Druckformladeeinheit aus der Arbeitsposition zurückgezogen ist.The invention relates to a device for changing printing forms on cylinders of printing machines, which comprises a pivotable printing form loading unit, which includes a printing form feed and a printing form removal unit, the printing form loading unit being pivotable into a working position on the channel of a printing form cylinder with clamping devices and into a loading position , in which the printing form loading unit has been withdrawn from the working position.

Aus dem Stand der Technik, der EP 0519 583, ist eine Plattenwechseleinrichtung für Druckmaschinen bekannt geworden. Eine Plattenhalteeinheit wird durch ein oberhalb des Druckwerkes angeordnetes Kegelradgetriebe auf- und abbewegt. Eine Zahnstange, die am rückwärtigen Teil der Plattenhalteeinheit vorgesehen ist, kämmt mit einem auf einer Kegelradwelle angeordneten Zahnrad, wodurch eine Vertikalbewegung der Plattenhalteeinheit erzielbar ist.A plate changing device for printing machines has become known from the prior art, EP 0519 583. A plate holding unit is moved up and down by a bevel gear arranged above the printing unit. A rack, which is provided on the rear part of the plate holding unit, meshes with a gear arranged on a bevel gear shaft, whereby a vertical movement of the plate holding unit can be achieved.

EP 0 530 577 A1 offenbart eine Vorrichtung zur Positionierung eines dem automatischen Druckplattenwechsel dienenden Magazins. Ein in mehrere Positionen verfahrbares Magazin fügt sich bei dieser Konzeption harmonisch in die Gesamtmaschine ein. Es können eine Druckplattenwechselposition, eine Position für den Austausch der Druckplatten im Magazin, sowie eine Service- und eine Normalbetriebsposition eingenommen werden. Das Magazin ist in einer Vertikalführung verschiebbar und um eine horizontale Achse schwenkbar; ferner sind Antriebe für das Verschieben und das Kippen des Magazins vorgesehen. Mit dieser Ausgestaltung ist eine Abdeckung der Auslegerseite eines Bogenmaschinendruckwerkes in der Normalbetriebsposition des Magazins erreichbar, so daß es als Schutz fungiert.EP 0 530 577 A1 discloses a device for positioning a magazine which serves for automatic printing plate change. With this concept, a magazine that can be moved into several positions fits harmoniously into the overall machine. A printing plate change position, a position for exchanging the printing plates in the magazine, as well as a service and a normal operating position can be adopted. The magazine can be moved in a vertical guide and pivoted about a horizontal axis; there are also drives for moving and tilting the magazine intended. With this configuration, it is possible to cover the delivery side of a sheet-fed printing machine in the normal operating position of the magazine, so that it functions as protection.

EP 0 520 594 A1 zeigt eine Druckformwechseleinrichtung an Druckmaschinen. Ein Druckformmagazin ist zwischen einer Arbeits- und einer Ladeposition verschwenkbar gelagert. An dem dem Druckwerk zugewandten Ende des Magazines sind drehbare Rollen vorgesehen, die beim Druckformwechsel - also bei Anstellung des Magazins an die Spanneinrichtung des Druckformzylinders - das Magazin am Druckformzylinder abstützen, um das Magazin während des Druckformwechsels in Position zu halten.EP 0 520 594 A1 shows a printing form changing device on printing machines. A printing form magazine is pivotally mounted between a working and a loading position. At the end of the magazine facing the printing unit, rotatable rollers are provided which support the magazine on the printing form cylinder when changing the printing form - i.e. when the magazine is positioned against the clamping device of the printing form cylinder - in order to hold the magazine in position during the printing form change.

Ausgehend vom skizzierten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Druckformwechseleinrichtung derart zu optimieren, daß die Zugänglichkeit zu Druckwerkkomponenten durch die Druckformwechseleinrichtung nicht eingeschränkt wird.Starting from the outlined state of the art, the object of the invention is to optimize a printing form changing device in such a way that the accessibility to printing unit components is not restricted by the printing form changing device.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Patentanspruches 1 gelöst.According to the invention, this object is achieved by the features of patent claim 1.

Von Vorteil bei der erfindungsgemäßen Lösung ist vor allem der Umstand, daß im Kontaktbereich zwischen der Druckform und dem Halteelement bei Abnahme der alten und Zufuhr der neuen Druckform auf mitbewegte Justageelemente verzichtet werden kann, da die Eigenelastizität der Druckform sowohl beim Abnehmen als auch beim Aufbringen ausgenutzt wird. Die Schwenkbarkeit des Druckformmagazins erlaubt ungehinderten Zugang zum Druckwerk und einen ungehinderten Zugang zum Magazin in dessen Ladeposition - etwa von einer Plattform aus.An advantage of the solution according to the invention is above all the fact that in the contact area between the printing form and the holding element, when the old and supplying the new printing form are removed, moving adjustment elements can be dispensed with, since the inherent elasticity of the printing form is used both when removing and when applying becomes. The swiveling of the printing form magazine allows unhindered access to the printing unit and unhindered access to the magazine in its loading position - for example from a platform.

In Ausgestaltung des Erfindungsgedankens, ist vorgesehen, den Einlaufbereich des Halteelements dem Druckformentfernungsfach der Druckformladeeinheit zuzuordnen, so daß eine durchgehende Förderebene geschaffen wird. Die Fördereinrichtungen sind am Halteelement derart gelagert, daß sie in die Förderebene des Druckformentfernungsfaches hineinreichen.In an embodiment of the inventive concept, it is provided to assign the inlet area of the holding element to the printing form removal compartment of the printing form loading unit, so that a continuous conveying plane is created. The conveying devices are mounted on the holding element in such a way that they extend into the conveying plane of the printing form removal compartment.

Eine Schutzeinrichtung kann im inaktiven Zustand - während des Druckformwechsels - zur Abstützung der Druckformladeeinheit verwendet werden, eine separate Abstützeinrichtung oder eine Anstellung an den Druckwerkzylinder können entfallen. Zum Anpassen der Druckform an die Oberfläche des Druckformzylinders kann eine bereits in der Maschine befindliche Walze - beispielsweise die Feuchtauftragswalze - benutzt werden; eine separate Anpreßeinheit kann entfallen.A protective device can be used in the inactive state - during the printing form change - to support the printing form loading unit, a separate support device or an adjustment to the printing unit cylinder can be omitted. To adapt the printing form to the surface of the printing form cylinder, a roller that is already in the machine - for example the dampening roller - can be used; a separate pressure unit can be omitted.

Die Arretierung und Freigabe der jeweils in der Druckformladeeinheit befindlichen Druckformen erfolgt über Arretierungen, die über je eine separate Stelleinheit aktivierbar sind. Als Arretierungen sind im Ausführungsbeispiel vorgespannte Hebel oder Haken vorgesehen. Diese können an Führungen verschiebbar oder stationär in der Druckformladeeinheit aufgenommen sein.The locking and releasing of the printing forms located in the printing form loading unit takes place via locking means, which can be activated via a separate actuating unit. Preloaded levers or hooks are provided as detents in the exemplary embodiment. These can be displaceably mounted on guides or stationary in the printing form loading unit.

Anhand einer Zeichnung wird die Erfindung nachstehend im Detail erläutert.The invention is explained in detail below with reference to a drawing.

Es zeigt:

Fig. 1
die Druckformladeeinheit in vertikaler Position mit senkrecht orientierter zuzuführender Druckform,
Fig. 2
die um eine Schwenkachse verschwenkte Druckformladeeinheit im an das Halteelement angestellten Zustand,
Fig. 3
den Einlauf eines rückwärtigen Endes einer vom Druckformzylinder anzunehmenden Druckform in die Druckformentfernungseinheit,
Fig. 4
den Einzug der abgenommenen Druckform in die Druckformentfernungseinheit,
Fig. 5
die Endposition der abgenommenen Druckform in der Druckformentfernungseinheit,
Fig. 6
die Anstellung des Vorderteils einer zuzuführenden Druckform an die Oberfläche des Druckformzylinders,
Fig. 7
das durch das Halteelement freigegebene Ende der neu aufzuziehenden Druckform und
Fig. 8
das Glattstreichen der aufgebrachten Druckform am sich in axialer Richtung erstreckenden Kanal des Druckformzylinders.
It shows:
Fig. 1
the printing form loading unit in the vertical position with the printing form to be fed oriented vertically,
Fig. 2
the printing form loading unit pivoted about a pivot axis in the state in which it is in the state of the holding element
Fig. 3
the entry of a rear end of a printing form to be accepted by the printing form cylinder into the printing form removal unit,
Fig. 4
the removal of the removed printing form into the printing form removal unit,
Fig. 5
the end position of the removed printing form in the printing form removal unit,
Fig. 6
the placement of the front part of a printing form to be fed onto the surface of the printing form cylinder,
Fig. 7
the end released by the holding element of the new printing form and
Fig. 8
the smoothing of the applied printing form on the channel of the printing form cylinder which extends in the axial direction.

In der Darstellung gemäß Fig. 1 befindet sich die verschwenkbare Druckformladeeinheit in einer senkrechten Ladeposition.1, the pivotable printing form loading unit is in a vertical loading position.

Die schwenkbare Druckformladeeinheit 2 umfaßt ein Druckformentfernungsfach 2.1 und ein Druckformzuführfach 2.2. Im rückwärtigen Teil des Druckformentfernungsfaches 2.1 ist eine bewegbare Arretierung 3 vorgesehen, mit welcher eine zu entfernende Druckform 14 vollständig in das Druckformentfernungsfach 2.1 eingezogen werden kann. Mittels eines Hakens 4 wird eine aufzubringende Druckform 14 - mit abgewinkelter Vorder- und Hinterkante 15, 16 - in senkrechter Lage im Druckformzuführfach 2.2 gehalten. Die Hinterkante 16 ist durch einen den Haken 4 bewegende Stelleinheit 23 freigebbar. Mittels einer Schwenkeinheit 21 - hier schematisch als Kolben/Zylindereinheit wiedergegeben - kann die Druckformladeeinheit 2 um eine Schwenkachse 24 und einen Haltepunkt 26 an ein Halteelement 5 angestellt werden. Die Druckformladeeinheit 2 verfügt oberhalb des Druckformentfernungsfaches 2.1 über eine Stelleinheit 29, mit welcher die Arretierung 3 mittels einer Kulissenführung 31 parallel zum Druckformentfernungsfach 2.1 verschiebbar ist. Die Arretierung 3 umfaßt einen drehbar gelagerten Hebel 30, der mittels eines Vorspannelementes 28 federnd angestellt ist und die Hinterkante 16 einer in das Druckformentfernungsfach 2.1 einlaufenden abzunehmenden Druckform 14 ergreift.The pivotable printing form loading unit 2 comprises a printing form removal compartment 2.1 and a printing form feed compartment 2.2. In the rear part of the printing form removal compartment 2.1, a movable locking device 3 is provided, with which a printing form 14 to be removed can be completely drawn into the printing form removal compartment 2.1. By means of a hook 4, a printing form 14 to be applied - with angled front and rear edges 15, 16 - is held in a vertical position in the printing form feed compartment 2.2. The rear edge 16 can be released by an actuating unit 23 moving the hook 4. By means of a swivel unit 21 - here represented schematically as a piston / cylinder unit - the printing forme loading unit 2 can be set against a holding element 5 about a pivot axis 24 and a stopping point 26. The printing form loading unit 2 has an actuating unit 29 above the printing form removal compartment 2.1, with which the locking device 3 can be displaced parallel to the printing form removal compartment 2.1 by means of a link guide 31. The locking device 3 comprises a rotatably mounted lever 30 which is spring-loaded by means of a prestressing element 28 and which grips the rear edge 16 of a printing form 14 to be removed which enters the printing form removal compartment 2.1.

Am Druckwerk, bestehend aus einem Übertragungszylinder 10 und einem Druckformzylinder 12, ist sowohl eine Schutzvorrichtung 8, die gleichzeitig als Abstützung für die in ihre Arbeitsposition geschwenkte Druckformladeeinheit 2 dient, als auch ein Halteelement 5 vorgesehen ist. Das Halteelement 5 sowie die Schutzeinrichtung 8 sind beide über Stelleinheiten 18 bzw. 20 verschwenkbar - wobei es dahingestellt sein kann, die Stelleinheiten 18 und 20 als Pneumatikzylinder, Elektromotoren oder dergleichen auszubilden. Entsprechendes gilt für eine Stelleinheit 19, mit welcher eine Walze 7 an die Oberfläche des Druckformzylinders 12 an- un wieder abstellbar ist. Die gegenwärtig auf dem Umfang der Druckformzylinder 12 befindliche, jedoch von diesem abzunehmende Druckform 14 ist mit Vorder- und Hinterkante 15, 16 in einem Kanal 17 des Druckformzylinders 12 befestigt. In diesem Kanal 17 ist eine automatische Klemmeinrichtung 1 vorgesehen, welche die Druckformen 14 bzw. 22 klemmt. Das bereits erwähnte schwenkbare Halteelement 5 verfügt über eine obere Leitfläche 9 und eine untere Leitfläche 11, zwischen denen ein trichterförmig verlaufender Einlaufbereich 13 gebildet ist. An der Unterseite des Halteelementes 5 befinden sich Fördereinrichtungen 6, mit deren Hilfe eine auf den Umfang des Druckformzylinders 2 aufzubringende Druckform 22 an die Oberfläche des Zylinders 12 anstellbar ist.On the printing unit, consisting of a transfer cylinder 10 and a printing form cylinder 12, both a protective device 8, which serves simultaneously as a support for the printing form loading unit 2 pivoted into its working position, and a holding element 5 are provided. The holding element 5 and the protective device 8 can both be pivoted via actuating units 18 and 20 - it being possible to design the actuating units 18 and 20 as pneumatic cylinders, electric motors or the like. The same applies correspondingly to an actuating unit 19 with which a roller 7 can be turned on and off again on the surface of the printing form cylinder 12. The printing form 14 currently located on the circumference of the printing form cylinder 12, but to be removed therefrom, is fastened with front and rear edges 15, 16 in a channel 17 of the printing form cylinder 12. In this channel 17, an automatic clamping device 1 is provided, which clamps the printing forms 14 and 22, respectively. The pivotable holding element 5 already mentioned has an upper guide surface 9 and a lower guide surface 11, between which a funnel-shaped inlet area 13 is formed. On the underside of the holding element 5 there are conveyors 6, with the help of which one on the circumference the printing form cylinder 2 to be applied to the surface of the cylinder 12 can be set.

Fig. 2 zeigt die Druckformladeeinheit 2 im an das Halteelement angestellten Zustand.2 shows the printing forme loading unit 2 in the state in which it is in the state of the holding element.

Bevor die Druckformladeeinheit 2 an das Halteelement 5 angestellt wird, verschwenkt die Stelleinheit 18 die Schutzvorrichtung 8 derart, daß diese als Abstützung des vorderen Teils der Druckformladeeinheit 2 dient. Die Fördereinrichtungen 6 ergreifen die rückwärtige Seite der neu aufzubringenden Druckform 22; anschließend wird durch die Stelleinheit 23 der Haken 4 betätigt, so daß die Hinterkante 16 der Druckform 22 in dem Druckformzuführfach 2.2 freiliegt. Mittels der Stelleinheit 19 erfolgt nunmehr die Anstellung der Walze 7 an die Oberfläche der auf den Druckformzylinder 12 befindlichen Druckform 14. Bei dieser Walze 7 kann es sich um eine bereits vorhandene Walze handeln, wie beispielsweise eine Feuchtauftragswalze oder ähnliche, jedenfalls ist keine separate Andrückwalze erforderlich.Before the printing form loading unit 2 is placed against the holding element 5, the adjusting unit 18 pivots the protective device 8 in such a way that it serves to support the front part of the printing form loading unit 2. The conveyors 6 grip the rear side of the new printing form 22; the hook 4 is then actuated by the actuating unit 23, so that the rear edge 16 of the printing form 22 is exposed in the printing form feed compartment 2.2. By means of the actuating unit 19, the roller 7 is now positioned against the surface of the printing plate 14 located on the printing form cylinder 12. This roller 7 can be an existing roller, such as a dampening roller or the like, in any case no separate pressure roller is required .

Die Druckwerkzylinder 12 drehen sich langsam rückwärts, bis der der Kanal 17 der unteren Leitfläche 11 des Halteelementes 5 gegenüberliegt. Sodann gibt die automatische Klemmeinrichtung 1 die Hinterkante 16 der Druckform 14 frei, um sich gleich darauf wieder zu schließen, um die Vorderkante 15 weiterhin zu fixieren. Die Hinterkante 16 läuft in den Einlaufbereich 13 ein, durch welchen sie gemäß Fig. 3 in das Druckformentfernungsfach 2.1 der an das Halteelement 5 gestellten Druckformladeeinheit 2 gelangt.The printing couple cylinders 12 slowly rotate backwards until the channel 17 of the lower guide surface 11 of the holding element 5 is opposite. Then the automatic clamping device 1 releases the rear edge 16 of the printing form 14 in order to close again immediately in order to continue to fix the front edge 15. The rear edge 16 runs into the inlet area 13, through which it reaches the printing form removal compartment 2.1 of the printing form loading unit 2 placed on the holding element 5, as shown in FIG. 3.

Zu diesem Zeitpunkt ist der vordere Bereich der aufzubringenden Druckform 22 von den Fördereinrichtungen 6 unterhalb des Halteelementes 5 ergriffen, die neu aufzubringende Druckform 22 ist dadurch im Druckformzuführfach 2.2 fixiert. Unterstützt durch die an die Oberfläche der abzunehmenden Druckform angestellte Walze 7 erfolgt das Einschieben der Druckform 14 in das Druckformentfernungsfach 2.1 der Druckformladeeinheit 2.At this time, the front area of the printing form 22 to be applied is gripped by the conveying devices 6 below the holding element 5, the printing form 22 to be newly applied is thereby in the Printing form feed tray 2.2 fixed. Supported by the roller 7 placed on the surface of the printing form to be removed, the printing form 14 is inserted into the printing form removal compartment 2.1 of the printing form loading unit 2.

In Fig. 4 ist gezeigt, wie nach Freigabe der Vorderkante 15 die abzunehmende Druckform 14 auf der unteren Leitfläche 11 des Halteelementes 5 aufliegend, durch den vorgespannten Hebel 30 an der Hinterkante 16 ergriffen, in das Druckformentfernungsfach 2.1 eingezogen wird. Die neu aufzubringende Druckform 22 verbleibt, ergriffen durch die Fördereinrichtung 6 unterhalb des Halteelementes 5 in ihrer Lage, wobei deren Hinterkante 16 durch den Haken 4 bereits freigegeben ist.4 shows how, after the front edge 15 has been released, the printing plate 14 to be removed, lying on the lower guide surface 11 of the holding element 5, gripped by the pretensioned lever 30 on the rear edge 16, is drawn into the printing form removal compartment 2.1. The new printing form 22 to be applied remains gripped by the conveying device 6 below the holding element 5, the rear edge 16 of which has already been released by the hook 4.

Der Darstellung gemäß Fig. 5 ist zu entnehmen, daß die vom Druckformzylinder 12 abzunehmende Druckform 14 durch eine Stelleinheit 29 im Druckformentfernungsfach 2.1 bis an dessen Ende befördert wird. Die Stelleinheit 29 ist mit einer Kulissenführung 31 versehen, an welcher die Arretierung 3 samt vorgespanntem Hebel 30 aufgenommen ist. Die abgenommene Druckform 14 wird auf diese Weise aus dem Einlaufbereich 13 des Halteelementes 5 entfernt, mit welchem nunmehr der vordere Bereich der bereits ergriffenen, neu aufzubringenden Druckform 22 gemäß Fig. 6 an die Oberfläche des Druckformzylinders 12 angestellt wird.5 that the printing form 14 to be removed from the printing form cylinder 12 is conveyed to the end by an actuating unit 29 in the printing form removal compartment 2.1. The actuating unit 29 is provided with a link guide 31, on which the locking device 3 together with the pretensioned lever 30 is received. The removed printing form 14 is removed in this way from the inlet area 13 of the holding element 5, with which the front area of the already seized printing form 22 to be reapplied according to FIG. 6 is now set against the surface of the printing form cylinder 12.

Die an die Mantelfläche des Druckformzylinders 12 angestellte Vorderkante 15 der neu aufzubringenden Druckform 22 wird noch von den Fördereinrichtungen 6 gehalten; nach Eintauchen in den Kanal 17 erfolgt die Klemmung der Vorderkante 15 durch die automatischen Halteeinrichtungen 1 und der Aufzug der Druckform 22 auf dieden Zylinderumfang des Druckformzylinders 12 kann erfolgen, da die Hinterkante 16 durch den Haken 4 freigegeben ist.The front edge 15 of the new printing form 22 to be applied to the lateral surface of the printing form cylinder 12 is still held by the conveying devices 6; After immersion in the channel 17, the front edge 15 is clamped by the automatic holding devices 1 and the printing form 22 can be lifted to the cylinder circumference of the printing form cylinder 12, since the rear edge 16 is released by the hook 4.

Eine gemäß Fig. 7 an die Druckform 22 anzustellende Walze 7 erleichtert das Aufziehen der Druckform 22 erheblich und schmiegt diese an die Krümmung der Oberfläche des Druckformzylinders 12 an. Bei Annäherung der Hinterkante 16 der neu aufzubringenden Druckform 22 an die Fördereinrichtungen 6 unterhalb des Halteelementes 5 geben diese die Druckform 22 vollständig frei, so daß diese unterstützt durch die Walze 7 auf dem Umfang des Druckformzylinders 12 gelangt. Da die Innenseiten vom Druckformzuführfach 2.2 und Druckformentfernungsfach 2.1 mit einer reibungsvermindernden die Druckformoberseite schonenden Beschichtung versehen sind, ist eine Beschädigung der Druckformen ausgeschlossen.A roller 7 to be set against the printing form 22 according to FIG. 7 considerably facilitates the mounting of the printing form 22 and nestles it against the curvature of the surface of the printing form cylinder 12. When the rear edge 16 of the new printing form 22 to be applied approaches the conveying devices 6 below the holding element 5, they release the printing form 22 completely, so that it is supported by the roller 7 on the circumference of the printing form cylinder 12. Since the inside of the printing form feed compartment 2.2 and printing form removal compartment 2.1 are provided with a friction-reducing coating that protects the printing form top, damage to the printing forms is excluded.

In der Darstellung gemäß Fig. 8 ist gezeigt, wie sowohl die Vorder- als auch die Hinterkante 15, 16 der Druckform 22 angedrückt werden, um einen minimalen Spalt zu erzielen. Über die Stelleinheit 18 schwenkt die Schutzeinrichtung 8 in den Spalt zwischen den Druckwerkzylindern 10, 12 zurück, mittels der Stelleinheit 20 wird das Halteelement 5 in eine vom Umfang des Druckformzylinders 12 abgestellte Lage gebracht, die schwenkbare Druckformladeeinheit 2 kann nunmehr in ihre Ladeposition zurückschwenken.8 shows how both the front and the rear edge 15, 16 of the printing form 22 are pressed in order to achieve a minimal gap. The protective device 8 pivots back into the gap between the printing unit cylinders 10, 12 via the actuating unit 18, the holding element 5 is brought into a position which is set away from the circumference of the printing form cylinder 12 by means of the setting unit 20, and the pivotable printing form loading unit 2 can now pivot back into its loading position.

BezugszeichenlisteReference list

11
automatische Klemmeinrichtungautomatic clamping device
22nd
DruckformladeeinheitPrinting form loading unit
2.12.1
DruckformentfernungsfachPrint form removal tray
2.22.2
DruckformzuführfachPrinting form feeder
33rd
ArretierungLocking
44th
Hakenhook
55
HalteelementHolding element
66
FördereinrichtungConveyor
77
Walzeroller
88th
SchutzvorrichtungProtection device
99
obere Leitflächeupper guide surface
1010th
ÜbertragungszylinderTransfer cylinder
1111
untere Leitflächelower guide surface
1212th
DruckformzylinderPrinting form cylinder
1313
EinlaufbereichInfeed area
1414
abzunehmende Druckformprint form to be removed
1515
VorderkanteLeading edge
1616
HinterkanteTrailing edge
1717th
Kanalchannel
1818th
StelleinheitActuator
1919th
StelleinheitActuator
2020th
StelleinheitActuator
2121
SchwenkeinheitSwivel unit
2222
aufzubringende Druckformprinting form to be applied
2323
StelleinheitActuator
2424th
SchwenkachseSwivel axis
2525th
Halterungbracket
2626
HaltepunktBreakpoint
2727
KolbenstangePiston rod
2828
VorspannelementPreloading element
2929
StelleinheitActuator
3030th
Hebellever
3131
KulissenführungScenery tour

Claims (11)

Einrichtung zum Wechsel vom Druckformen auf Zylindern von Druckmaschinen, die eine schwenkbare Druckformladeeinheit umfaßt, die ein Druckformzuführ- und ein Druckformentfernungsfach einschließt, wobei die Druckformladeeinheit in eine Arbeitsposition an den Kanal eines Druckformzylinders mit Klemmeinrichtungen und in eine Ladeposition schwenkbar ist, in der die Druckformladeeinheit aus der Arbeitsposition zurückgezogen ist,
dadurch gekennzeichnet,
daß die in eine vertikale Ladeposition schwenkbare Druckformladeeinheit (2) an ein Halteelement (5) anschwenkbar ist, an welchem ein Einlaufbereich (13) für eine vom Druckformzylinder (12) abzunehmende Druckform (14) und Fördereinrichtungen (6) für eine auf den Druckformzylinder (12) aufzubringende Druckform (22) vorgesehen sind.Means for changing printing formes on cylinders of printing machines, which comprises a pivotable printing form loading unit, which includes a printing form feed and a printing form removal compartment, wherein the printing form loading unit can be pivoted into a working position on the channel of a printing form cylinder with clamping devices and into a loading position, in which the printing form loading unit is withdrawn from the working position,
characterized by
that the printing form loading unit (2), which can be pivoted into a vertical loading position, can be pivoted onto a holding element (5), on which an inlet area (13) for a printing form (14) to be removed from the printing form cylinder (12) and conveyor devices (6) for a onto the printing form cylinder ( 12) to be applied printing form (22) are provided. Einrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß der Einlaufbereich (13) dem Druckformentfernungsfach (2.1) der Druckformladeeinheit (2) zugeordnet ist.Device according to claim 1,
characterized by
that the inlet area (13) is assigned to the printing form removal compartment (2.1) of the printing form loading unit (2). Einrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Fördereinrichtungen (6) am Halteelement (5) in die Förderebene der aufzubringenden Druckform (22) des Druckformzuführfaches (2.2.) eingreifen.Device according to claim 1,
characterized by
that the conveying devices (6) on the holding element (5) engage in the conveying plane of the printing form (22) of the printing form feed compartment (2.2.) to be applied. Einrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Druckformladeeinheit (2) in ihre Arbeitsposition von einer Schutzeinrichtung (8) abgestützt wird.Device according to claim 1,
characterized by
that the printing form loading unit (2) is supported in its working position by a protective device (8). Einrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß das Abnehmen der Druckform (14) und das Aufziehen der aufzubringenden Druckform (22) durch eine an den Druckformzylinder (12) anstellbare Walze (7) unterstützt ist.Device according to claim 1,
characterized by
that the removal of the printing form (14) and the mounting of the printing form (22) to be applied is supported by a roller (7) which can be adjusted to the printing form cylinder (12). Einrichtung gemäß Anspruch 5,
dadurch gekennzeichnet,
daß die anstellbare Walze (7) die Feuchtauftragswalze eines Druckwerkes ist.Device according to claim 5,
characterized by
that the adjustable roller (7) is the dampening roller of a printing unit. Einrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß dem Druckformentfernungsfach (2.1) und dem Druckzuführfach (2.2) der Druckformladeeinheit (2) jeweils eine Stelleinheit (23, 29) zugeordnet ist, welche Arretierungen (3, 4) für die Druckformen (14, 22) betätigen.Device according to claim 1,
characterized by
that the printing form removal compartment (2.1) and the pressure supply compartment (2.2) of the printing form loading unit (2) are each assigned an actuating unit (23, 29) which actuate detents (3, 4) for the printing forms (14, 22). Einrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß die Arretierung (3) einen vorgespannten Hebel (28, 30) umfaßt.Device according to claim 7,
characterized by
that the lock (3) comprises a pretensioned lever (28, 30). Einrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß die Arretierung (3) parallel zum Druckformentfernungsfach (2.1) verfahrbar ist.Device according to claim 7,
characterized by
that the locking mechanism (3) can be moved parallel to the printing form removal compartment (2.1). Einrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß die Arretierung (3) in einer Kulissenführung (31) verfahrbar ist.Device according to claim 7,
characterized by
that the locking device (3) can be moved in a link guide (31). Einrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß die Arretierung (4), die dem Druckformzuführfach (2.2) zugeordnet ist, die Hinterkante (16) der neu aufzubringenden Druckform (22) ergreift.Device according to claim 7,
characterized by
that the lock (4), which is assigned to the printing form feed compartment (2.2), grips the rear edge (16) of the printing form (22) to be newly applied.
EP96100378A 1995-03-31 1996-01-12 Device for exchanging printing plates Expired - Lifetime EP0734859B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503828 1995-03-31
FR9503828A FR2732267B1 (en) 1995-03-31 1995-03-31 DEVICE FOR CHANGING PRINTING FORMS

Publications (2)

Publication Number Publication Date
EP0734859A1 true EP0734859A1 (en) 1996-10-02
EP0734859B1 EP0734859B1 (en) 1999-03-31

Family

ID=9477630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100378A Expired - Lifetime EP0734859B1 (en) 1995-03-31 1996-01-12 Device for exchanging printing plates

Country Status (7)

Country Link
US (1) US5701822A (en)
EP (1) EP0734859B1 (en)
JP (1) JP3032484U (en)
AT (1) ATE178269T1 (en)
CA (1) CA2172459A1 (en)
DE (1) DE59601528D1 (en)
FR (1) FR2732267B1 (en)

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DE10238106A1 (en) * 2002-08-21 2004-03-04 Koenig & Bauer Ag Fitting a printing plate to the cylinder, of a rotary printing press, inserts the leading hanging leg into the holding slit to hook against the leading edge by radial force through relative movements
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EP2141020A3 (en) * 2003-03-28 2010-03-17 Koenig & Bauer Aktiengesellschaft Printing plate cassette with a receiving device to receive several printing plates to be mounted on a plate cylinder of a printing press
DE102006006330B3 (en) * 2006-02-11 2007-04-12 Koenig & Bauer Ag Printing mechanism with platen moving device for rotary printing press has fixed guide sector remote from platen cylinder
DE102006061316B4 (en) * 2006-12-22 2014-11-20 Koenig & Bauer Aktiengesellschaft Device having a plurality of storage planes each arranged at a distance from one another
WO2020140346A1 (en) * 2018-12-31 2020-07-09 高斯图文印刷系统（中国）有限公司 Upper automatic plate exchanging device of book roll-fed printing press

Also Published As

Publication number Publication date
JP3032484U (en) 1996-12-24
FR2732267A1 (en) 1996-10-04
US5701822A (en) 1997-12-30
DE59601528D1 (en) 1999-05-06
ATE178269T1 (en) 1999-04-15
EP0734859B1 (en) 1999-03-31
CA2172459A1 (en) 1996-10-01
FR2732267B1 (en) 1997-06-20

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