EP0657284A1 - Device for automatically mounting and/or demounting flexible printing plates - Google Patents

Device for automatically mounting and/or demounting flexible printing plates Download PDF

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Publication number
EP0657284A1
EP0657284A1 EP94118916A EP94118916A EP0657284A1 EP 0657284 A1 EP0657284 A1 EP 0657284A1 EP 94118916 A EP94118916 A EP 94118916A EP 94118916 A EP94118916 A EP 94118916A EP 0657284 A1 EP0657284 A1 EP 0657284A1
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EP
European Patent Office
Prior art keywords
printing
gripper system
cylinder
plate
sheet
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
EP94118916A
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German (de)
French (fr)
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EP0657284B1 (en
Inventor
Michael Dr. Koch
Arndt Jentzsch
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KBA Planeta AG
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KBA Planeta AG
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Publication date
Application filed by KBA Planeta AG filed Critical KBA Planeta AG
Publication of EP0657284A1 publication Critical patent/EP0657284A1/en
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Publication of EP0657284B1 publication Critical patent/EP0657284B1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/61—Devices for transferring printing plates using the sheet feed system

Definitions

  • the invention relates to a device for the automatic insertion and / or removal of flexible printing plates on printing machines.
  • a method and a device for the automatic insertion and / or removal of flexible printing plates onto / from a printing form cylinder provided with plate grippers via sheet conveyors provided on the printing press and an intermediate cylinder provided with auxiliary grippers is known (DE 42 20 011).
  • the conveyance of the printing plate via the sheet path means that the printing plate leading edge in the system is aligned with the front marks and is conveyed via the known sheet conveying means, for example the transfer drum and the printing cylinder.
  • the leading edge of the printing plate occupies the same position as the leading edge of the sheet. The problem arises that the distance of the earliest possible printing insert from the leading edge is greater for the printing plate than for the sheet.
  • the object of the invention is to compensate for the phase offset of the printing insert lines in relation to the leading edge of the sheet and the leading edge of the printing plate during the automatic insertion and / or removal of printing plates via the sheet path.
  • Fig. 1 the view of a sheet-fed printing machine is shown, which consists of a feed device, two identically constructed printing units 2 and a discharge device, not shown.
  • the feed device which leads to the printing units 2, is composed of a feeder 1, a feed table 3, a pre-gripper 10, a feed drum 11 and an alignment device 12 and, depending on the position of the printing unit 2, from one or more sheet conveyors leading to the printing unit are designed as a sheet guide cylinder or as chain guides, not shown.
  • Sheet guiding cylinders are the cylinders that convey the sheet 18 in normal operation and the printing plate 4 in printing plate conveying operation with the aid of existing gripper systems 5, such as the transfer drum 13, the printing cylinder 14 and, in the case of surface and reverse printing machines, the SW drum (not shown).
  • An auxiliary gripper system 7 for printing plate transport is arranged in the intermediate cylinder duct 15 of the intermediate cylinder 6.
  • the rubber blanket 16 is stretched on the intermediate cylinder 6 using generally known tensioning means.
  • the intermediate cylinder 6 corresponds to the printing form cylinder 8, which is designed as a plate cylinder.
  • a plate gripper system 9 is arranged in the printing form cylinder channel 17 for the printing plate leading edge 4.1 and the printing plate trailing edge 4.2, by which the printing plate 4 fed to the printing form cylinder 8 is held and tensioned.
  • At least one gripper system 5, 7, 9 is designed to be movable relative to the sheet and / or printing plate conveying direction, movement in the direction of rotation when the printing plates 4 are drawn in and counter to the direction of rotation when the printing plates are extracted.
  • the movably designed gripper system 5 of the pressure cylinder 14 shown in FIG. 3 serves to implement the compensation of the phase offset.
  • the pressure cylinder 14 and the intermediate cylinder 6 remain in the same position relative to one another in the printing plate conveyor operation as in normal operation.
  • the auxiliary gripper system 7 of the intermediate cylinder 6 is offset by the amount of the phase offset P in the intermediate cylinder with respect to the channel edge 20.
  • the auxiliary gripper system 7 can be pivoted in normal operation to below the intermediate cylinder periphery.
  • the gripper system 5 of the pressure cylinder 14 is mounted on rollers 23 which are connected via a coupling 24 to a roller lever 26 which is operatively connected to a curve 25.
  • the rollers 23 and thus the gripper system 5 preferably roll on a radius track 22; other cam tracks are conceivable.
  • the auxiliary gripper system 7 is mounted on a lever arm 29 in the intermediate cylinder center 30, pivotable on an intermediate cylinder radius track 28.
  • the lever arm 29 is connected to a roller lever arm 31 which is operatively connected to an actuation curve 32.
  • the printing plate 4 is taken over by the gripper system 5 of the printing cylinder 14 through the auxiliary gripper system 7 of the intermediate cylinder 6 and, after the phase shift compensation, is transferred from the auxiliary gripper system 7 to the plate gripper system 9, which is arranged in the printing form cylinder channel 17 of the printing form cylinder 8.
  • the plate gripper system 9 is shown in the takeover / transfer position and in the operating position, which corresponds to the position in normal operation.
  • the coupling gear is designed so that it moves the auxiliary gripper 7 in the pressure plate conveying direction for the purpose of compensating for the phase shift P, the auxiliary gripper 7 for the purpose of transferring to or taking over from the plate gripper system 9.1 moves and swivels in the radial direction.
  • the swiveling and radial movement enables the plate gripper system 9 to be arranged firmly below the printing form cylinder periphery 27.
  • the plate gripper system 9, which is movably arranged in the printing form cylinder 8 (FIG. 6), serves to implement the compensation of the phase offset P via the plate gripper system 9.
  • the plate gripper system 9 is connected to an angle lever 34, which carries a cam roller 36, which is operatively connected to a swivel cam 35.
  • the position in which the pressure plate 4 is taken over is shown fully drawn out; the operating position is shown in dashed lines.
  • the plate gripper system can be moved once into the operating position up to the printing form cylinder periphery 27 (FIG. 6) or only in the circumferential direction - in this position the plate gripping system 9 is not guided up to the printing form cylinder periphery. It can be seen that the pressure application line 19 has been brought into line with the target pressure application line 37.
  • the printing plate 4 is fed to the printing form cylinder 8 on the sheet path via the intermediate cylinder 6.
  • the feeding of the printing plate 4 begins analogously to the feeding of sheets with the separation at the feeder 1, which transfers the printing plate 4 to the feed table 3.
  • the printing plate 4 is aligned on the feed table 3 with the aid of an aligning device 12 provided for the sheet alignment.
  • the printing plate 4 is then analogous to the sheet (not shown) via the pre-gripper 10 and the feed drum 11 to the printing cylinder 14 of the first printing unit and, in the case of downstream further printing units, from the printing cylinder 14 of the first printing unit via a transfer drum 13 to the printing cylinder of the second printing unit and analogously to further printing units with the existing gripper systems 5.
  • the printing plate 4 is then transferred from the printing cylinder 14 to the intermediate cylinder 6, which is designed as a rubber cylinder.
  • the transfer of the pressure plate 4 takes place from the existing gripper system 5 of the pressure cylinder 14 to the auxiliary gripper system 7 arranged in the intermediate cylinder channel 15 of the intermediate cylinder 6.
  • the pressure plate 4 is transferred from the auxiliary gripper system 7 into the plate gripper system 9.
  • the front plate gripping system 9.1 After taking over the leading edge 4.1 of the printing plate by the front plate gripper system 9.1 in the area of the printing form cylinder periphery 27, the front plate gripping system 9.1 is lowered from the printing form cylinder periphery 27, the printing form cylinder 8 is rotated and the printing plate trailing edge 4.2 is gripped and clamped by the rear plate gripper system 9.2 in the area of the printing form cylinder periphery 27 . The rear plate gripper system 9.2 is then lowered, as a result of which the printing plate 4 is clamped on the printing form cylinder 8.
  • the printing press In normal operation / printing operation, the printing press is geometrically designed in such a way that the target pressure insertion lines 37 of the printing form cylinder 9, the intermediate cylinder 6 and the printing cylinder 14 are brought to coincide with the rotation thereof.
  • this also means that the target pressure application line 37 of the printing cylinder 14 must be in agreement with the pressure application line 19 on the sheet 18 held by the gripper system 5 in order to achieve optimal printing results.
  • the pressure plate 4 is moved in addition to the cylinder movement by the amount of the phase offset P in the pressure plate conveying direction and transferred to the auxiliary gripper system 7 arranged in the intermediate cylinder 6 (FIG. 3).
  • the auxiliary gripper system 7 of the intermediate cylinder 6 can take over the pressure plate 4 in the offset position, since the same is arranged offset in the intermediate cylinder by the amount of the phase offset P.
  • the position of the target pressure application line 37 and the position of the pressure application line 19 are, based on the intermediate cylinder 6, the same and the pressure plate 4 can now be transferred to the plate gripper system 9, ie to the front plate gripper system 9.1.
  • the plate gripper system 9.1 is located above the printing form cylinder periphery 27. After the transfer, the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
  • the auxiliary gripper system 7 arranged in the intermediate cylinder 6 is brought into an ineffective position below the periphery of the intermediate cylinder after the printing plate has been transferred to the printing form cylinder 8.
  • the movement of the gripper system 5 in the pressure cylinder channel 21 preferably takes place on a radius path 22 through the gear 23; 24; 25; 26.
  • the pressure plate 4 After being taken over by the gripper system 5 of the printing cylinder 14, is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction and transferred to the plate gripper system 9 arranged in the printing form cylinder 8 (FIG. 4).
  • the transfer of the pressure plate 4 by the auxiliary gripper system 7 from the gripper system 5 of the pressure cylinder 14 takes place with a phase shift P, the phase shift P being compensated for by the movement of the auxiliary gripper system 7 and thus creating the prerequisite that the front plate gripper system 4.1 the pressure plate 4 without a phase shift P - Set pressure line 37 and pressure line 19 are the same in relation to the printing form cylinder 8 - can take over.
  • the auxiliary gripper system 7 preferably moves in the intermediate cylinder channel 15 on an intermediate cylinder radius path 28 around the intermediate cylinder center 30 by means of the gear 31; 32.
  • the plate gripper system 9.1 is located above the printing form cylinder periphery 27.
  • the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
  • the auxiliary gripper system 7 which is movably arranged in the intermediate cylinder 6, the printing plate 4 taken over by the gripper system 5 of the printing cylinder is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction and to the plate gripper system 9.1 arranged in the printing plate cylinder 8 below the printing plate cylinder periphery 27 handed over (Fig. 5).
  • the auxiliary gripper system 7 In addition to the movement in the printing plate conveying direction, the auxiliary gripper system 7 also executes a movement in the radial direction and a pivoting movement.
  • the printing plate 4 conveyed by the gripper system 5 of the printing cylinder 14 via the auxiliary gripper system 7 of the intermediate cylinder 6 is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction (FIG. 6) .
  • the transfer of the pressure plate 4 by the plate gripper system 9 from the gripper system 5 of the pressure cylinder 14 via the auxiliary gripper system 7 of the intermediate cylinder 6 takes place with phase offset P.
  • the phase offset P is eliminated by the movement of the front plate gripper system 9.1 in the direction of pressure plate movement, the front plate gripper system 9.1 preferably using a transmission 34; 35; 36 is moved so that the front plate gripper system 9.1 is controlled after the compensation of the phase offset under the printing form cylinder periphery 27.
  • Flexible printing plates are extracted in the reverse order to the printing plates.

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  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The invention relates to a device for automatically mounting and/or demounting flexible printing plates on printing machines. Setting out from the object of compensating the phase offset of the impression lines relative to the leading edge of the sheet and the leading edge of the printing plate during automatic mounting and/or demounting of printing plates over the sheet path, at least one gripper system is designed to be movable in relation to the sheet-conveying and/or printing plate-conveying apparatus for compensating the phase offset of the impression lines relative to the leading edge of the printing plate and the leading edge of the sheet in a device for automatically mounting and/or demounting flexible printing plates on/from at least one printing forme cylinder of a printing machine provided with a plate gripper system by sheet conveying means, present on the printing machine and containing sheet-conveying cylinders fitted with gripper systems, and an intermediate cylinder provided with an auxiliary gripper system.

Description

Die Erfindung betrifft eine Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten an Druckmaschinen. Es ist ein Verfahren und eine Einrichtung zum automatischen Ein-und/oder Auszug von flexiblen Druckplatten auf/von einen mit Plattengreifern versehenen Druckformzylinder über an der Druckmaschine vorhandene Bogenfördermittel und einen mit Hilfsgreifern versehenen Zwischenzylinder bekannt (DE 42 20 011).The invention relates to a device for the automatic insertion and / or removal of flexible printing plates on printing machines. A method and a device for the automatic insertion and / or removal of flexible printing plates onto / from a printing form cylinder provided with plate grippers via sheet conveyors provided on the printing press and an intermediate cylinder provided with auxiliary grippers is known (DE 42 20 011).

Die Förderung der Druckplatte über den Bogenweg bedeutet, daß die Druckplattenvorderkante in der Anlage an den Vordermarken ausgerichtet und über die bekannten Bogenfördermittel, beispielsweise die Übergabetrommel und der Druckzylinder, gefördert wird. Dabei nimmt die Druckplattenvorderkante die gleiche Position ein wie die Bogenvorderkante.
Es tritt das Problem auf, daß der Abstand des frühestmöglichen Druckeinsatzes von der Vorderkante bei der Druckplatte größer als beim Bogen ist.The conveyance of the printing plate via the sheet path means that the printing plate leading edge in the system is aligned with the front marks and is conveyed via the known sheet conveying means, for example the transfer drum and the printing cylinder. The leading edge of the printing plate occupies the same position as the leading edge of the sheet.
The problem arises that the distance of the earliest possible printing insert from the leading edge is greater for the printing plate than for the sheet.

Aufgabe der Erfindung ist der Ausgleich des Phasenversatzes der Druckeinsatzlinien bezogen auf die Bogenvorderkante und die Druckplattenvorderkante beim automatischen Ein- und/oder Auszug von Druckplatten über den Bogenweg.The object of the invention is to compensate for the phase offset of the printing insert lines in relation to the leading edge of the sheet and the leading edge of the printing plate during the automatic insertion and / or removal of printing plates via the sheet path.

Erfindungsgemäß wird die Aufgabe durch das Kennzeichen des Patentanspruches gelöst.
Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher beschrieben.
In den Zeichnungen zeigen

Fig. 1:
Bogendruckmaschine
Fig. 2:
Phasenversatz
Fig. 3:
Bewegliches Greifersystem
Fig. 4:
Bewegliches Hilfsgreifersystem (Radiusbahn)
Fig. 5:
Bewegliches Hilfsgreifersystem (Koppelbahn)
Fig. 6:
Bewegliches Plattengreifersystem
According to the invention the object is achieved by the characterizing part of the patent claim.
The invention is described in more detail below using an exemplary embodiment.
Show in the drawings
Fig. 1:
Sheet printing machine
Fig. 2:
Phase shift
Fig. 3:
Movable gripper system
Fig. 4:
Movable auxiliary gripper system (radius track)
Fig. 5:
Movable auxiliary gripper system (coupling track)
Fig. 6:
Movable plate gripper system

In Fig. 1 ist die Ansicht einer Bogendruckmaschine dargestellt, die aus einer Zuführeinrichtung, zwei identisch aufgebauten Druckwerken 2 und einer nicht dargestellten Abführeinrichtung besteht. Die Zuführeinrichtung, die zu den Druckwerken 2 führt, setzt sich zusammen aus einem Anleger 1, einem Anlegtisch 3, einem Vorgreifer 10, einer Anlegtrommel 11 und einer Ausrichteinrichtung 12 und je nach Position des Druckwerkes 2 aus einem oder mehreren zum Druckwerk führenden Bogenfördermitteln Die Bogenfördermittel sind als Bogenführungszylinder oder als nicht dargestellte Kettenführungen ausgestaltet.
Bogenführungszylinder sind die Zylinder, die im Normalbetrieb den Bogen 18 und im Druckplattenförderbetrieb auch die Druckplatte 4 mit Hilfe vorhandener Greifersysteme 5 befördern, wie die Übergabetrommel 13, der Druckzylinder 14 und bei Schön- und Widerdruckmaschinen, die nicht dargestellte SW-Trommel.
Der jeweils letzte Bogenführungszylinder in einem Druckwerk 2, der Druckzylinder 14, liegt an einem als Gummizylinder ausgebildeten Zwischenzylinder 6 an.
In dem Zwischenzylinderkanal 15 des Zwischenzylinders 6 ist ein Hilfsgreifersystem 7 zum Druckplattentransport angeordnet. Auf dem Zwischenzylinder 6 ist das Gummituch 16 mit allgemein bekannten Spannmitteln gespannt.
Der Zwischenzylinder 6 korrespondiert mit dem Druckformzylinder 8, der als Plattenzylinder ausgebildet ist. In dem Druckformzylinderkanal 17 ist ein Plattengreifersystem 9 jeweils für die Druckplattenvorderkante 4.1 und die Druckplattenhinterkante 4.2 angeordnet, von dem die dem Druckformzylinder 8 zugeführte Druckplatte 4 gehalten und gespannt wird.In Fig. 1 the view of a sheet-fed printing machine is shown, which consists of a feed device, two identically constructed printing units 2 and a discharge device, not shown. The feed device, which leads to the printing units 2, is composed of a feeder 1, a feed table 3, a pre-gripper 10, a feed drum 11 and an alignment device 12 and, depending on the position of the printing unit 2, from one or more sheet conveyors leading to the printing unit are designed as a sheet guide cylinder or as chain guides, not shown.
Sheet guiding cylinders are the cylinders that convey the sheet 18 in normal operation and the printing plate 4 in printing plate conveying operation with the aid of existing gripper systems 5, such as the transfer drum 13, the printing cylinder 14 and, in the case of surface and reverse printing machines, the SW drum (not shown).
The respective last sheet guide cylinder in a printing unit 2, the printing cylinder 14, bears against an intermediate cylinder 6 designed as a blanket cylinder.
An auxiliary gripper system 7 for printing plate transport is arranged in the intermediate cylinder duct 15 of the intermediate cylinder 6. The rubber blanket 16 is stretched on the intermediate cylinder 6 using generally known tensioning means.
The intermediate cylinder 6 corresponds to the printing form cylinder 8, which is designed as a plate cylinder. A plate gripper system 9 is arranged in the printing form cylinder channel 17 for the printing plate leading edge 4.1 and the printing plate trailing edge 4.2, by which the printing plate 4 fed to the printing form cylinder 8 is held and tensioned.

Bei der Förderung der Druckplatte 4 mittels der Greifersysteme 5, 7, 9 wird durch dieselben die Druckplattenvorderkante 4.1 in der gleichen Art und Weise wie die Bogenvorderkante 18.1 erfaßt (Fig. 2). Der Abstand der Bogenvorderkante 18.1 zur Druckeinsatzlinie 19 entspricht dabei nicht dem Abstand der Druckplattenvorderkante 4.1 zur Druckeinsatzlinie 19, d.h. es ergibt sich ein Phasenversatz P. Da die Druckeinsatzlinien 19 im Druckbetrieb die gleiche Lage einnehmen und deckungsgleich mit der maschinenbedingten Solldruckeinsatzlinie 37 sein müssen, ist der Phasenversatz P beim Druckplattenförderbetrieb auszugleichen.
Zum Ausgleich des Phasenversatzes P ist mindestens ein Greifersystem 5, 7, 9 relativ zur Bogen- und/oder Druckplattenförderrichtung beweglich ausgestaltet, wobei beim Einzug der Druckplatten 4 eine Bewegung in Drehrichtung und beim Auszug der Druckplatten entgegen der Drehrichtung erfolgt. Für den Normalbetrieb (Druckbetrieb) verbleiben die Greifersysteme in der Ausgangsstellung Einzug von Druckplatten.
Zur Realisierung des Ausgleiches des Phasenversatzes über das Greifersystem 5 dient das in Fig. 3 dargestellte beweglich gestaltete Greifersystem 5 des Druckzylinders 14.
Der Druckzylinder 14 und der Zwischenzylinder 6 verbleiben beim Druckplattenförderbetrieb relativ zueinander in der gleichen Lage wie beim Normalbetrieb.
Das Hilfsgreifersystem 7 des Zwischenzylinders 6 ist um den Betrag des Phasenversatzes P im Zwischenzylinder gegenüber der Kanalkante 20 versetzt angeordnet. Das Hilfsgreifersystem 7 ist im Normalbetrieb bis unter die Zwischenzylinderperipherie schwenkbar. Das Greifersystem 5 des Druckzylinders 14 ist auf Rollen 23 gelagert, welche über eine Koppel 24 mit einem mit einer Kurve 25 in Wirkverbindung stehenden Rollenhebel 26 verbunden ist. Die Rollen 23 und damit das Greifersystem 5 rollen vorzugsweise auf einer Radiusbahn 22 ab; andere Kurvenbahnen sind denkbar.
Zur Realisierung des Ausgleiches des Phasenversatzes P über das Hilfsgreifersystem 7 dient das in Fig. 4 dargestellte, beweglich gestaltete Hilfsgreifersystem 7. Das Hilfsgreifersystem 7 ist an einem Hebelarm 29 im Zwischenzylindermittelpunkt 30, verschwenkbar auf einer Zwischenzylinderradiusbahn 28, gelagert.
Der Hebelarm 29 ist mit einem Rollenhebelarm 31, der mit einer Betätigungskurve 32 in Wirkverbindung steht, verbunden.
Die Druckplatte 4 wird von dem Greifersystem 5 des Druckzylinders 14 durch das Hilfsgreifersystem 7 des Zwischenzylinders 6 übernommen und von dem Hilfsgreifersystem 7 nach dem Phasenversatzausgleich an das Plattengreifersystem 9 übergeben, welches in dem Druckformzylinderkanal 17 des Druckformzylinders 8 angeordnet ist. Das Plattengreifersystem 9 ist in der Übernahme-/Übergabe- und in der Betriebsstellung, die der Stellung im Normalbetrieb entspricht, dargestellt.
Das vordere Plattengreifersystem 9.1 ist so angeordnet, daß dieses die Druckplattenvorderkante 4.1 übernimmt, und nach der Übernahme unter die Druckformzylinderperipherie 27 des Druckformzylinders 8 in die Betriebsstellung gesenkt wird.
Im Druckformzylinder 8 ist weiterhin ein absenkbares hinteres Plattengreifersystem 9.2 angeordnet, das die Druckplattenhinterkante 4.2 im Bereich der Druckformzylinderperipherie 27 des Druckformzylinders 8 erfaßt und durch Absenken gleichzeitig spannt.
Zur Realisierung des Ausgleiches des Phasenversatzes P über das Hilfsgreifersystem 7 dient in einer weiteren Ausführungsvariante das im Zwischenzylinder 6 angeordnete Hilfsgreifersystem 7 mit einem zugeordneten Koppelgetriebe 33 (Fig. 5).
Das Koppelgetriebe ist so ausgelegt, daß es den Hilfsgreifer 7 in Druckplattenförderrichtung zum Zwecke des Ausgleiches des Phasenversatzes P bewegt, den Hilfsgreifer 7 zum Zwecke der Übergabe an das bzw. der Übernahme von dem Plattengreifersystem 9.1 in radialer Richtung bewegt und schwenkt.
Die Schwenk- und Radialbewegung ermöglicht es, das Plattengreifersystem 9 fest unterhalb der Druckformzylinderperipherie 27 anzuordnen.
Zur Realisierung des Ausgleiches des Phasenversatzes P über das Plattengreifersystem 9 dient das im Druckformzylinder 8 beweglich angeordnete Plattengreifersystem 9 (Fig. 6).
Das Plattengreifersystem 9 ist an einem Winkelhebel 34, welcher eine Kurvenrolle 36 trägt, die mit einer Schwenkkurve 35 in Wirkverbindung steht, verbunden.
Die Stellung, bei der die Übernahme der Druckplatte 4 erfolgt, ist voll ausgezogen dargestellt; die Betriebsstellung ist gestrichelt dargestellt. Das Plattengreifersystem kann einmal in die Betriebsstellung bis unter die Druckformzylinderperipherie 27 (Fig. 6) oder nur in Umfangsrichtung - in dieser Stellung wird das Plattengreifersystem 9 nicht bis unter die Druckformzylinderperipherie geführt - verschoben werden.
Es ist ersichtlich, daß die Druckeinsatzlinie 19 mit der Solldruckeinsatzlinie 37 in Einklang gebracht wurde.When the printing plate 4 is conveyed by means of the gripper systems 5, 7, 9, the printing plate leading edge 4.1 is grasped by the same in the same way as the leading sheet edge 18.1 (FIG. 2). The distance of the sheet leading edge 18.1 to the printing insert line 19 does not correspond to the distance of the printing plate leading edge 4.1 to the printing insert line 19, i.e. there is a phase offset P. Since the printing insert lines 19 assume the same position in printing operation and must be congruent with the machine-related target printing insert line 37, that is Compensate for phase offset P in printing plate conveyor operation.
To compensate for the phase offset P, at least one gripper system 5, 7, 9 is designed to be movable relative to the sheet and / or printing plate conveying direction, movement in the direction of rotation when the printing plates 4 are drawn in and counter to the direction of rotation when the printing plates are extracted. For normal operation (printing operation), the gripper systems remain in the starting position of the intake of printing plates.
The movably designed gripper system 5 of the pressure cylinder 14 shown in FIG. 3 serves to implement the compensation of the phase offset.
The pressure cylinder 14 and the intermediate cylinder 6 remain in the same position relative to one another in the printing plate conveyor operation as in normal operation.
The auxiliary gripper system 7 of the intermediate cylinder 6 is offset by the amount of the phase offset P in the intermediate cylinder with respect to the channel edge 20. The auxiliary gripper system 7 can be pivoted in normal operation to below the intermediate cylinder periphery. The gripper system 5 of the pressure cylinder 14 is mounted on rollers 23 which are connected via a coupling 24 to a roller lever 26 which is operatively connected to a curve 25. The rollers 23 and thus the gripper system 5 preferably roll on a radius track 22; other cam tracks are conceivable.
To realize the compensation of the phase offset P via the Auxiliary gripper system 7 serves the movable auxiliary gripper system 7 shown in FIG. 4. The auxiliary gripper system 7 is mounted on a lever arm 29 in the intermediate cylinder center 30, pivotable on an intermediate cylinder radius track 28.
The lever arm 29 is connected to a roller lever arm 31 which is operatively connected to an actuation curve 32.
The printing plate 4 is taken over by the gripper system 5 of the printing cylinder 14 through the auxiliary gripper system 7 of the intermediate cylinder 6 and, after the phase shift compensation, is transferred from the auxiliary gripper system 7 to the plate gripper system 9, which is arranged in the printing form cylinder channel 17 of the printing form cylinder 8. The plate gripper system 9 is shown in the takeover / transfer position and in the operating position, which corresponds to the position in normal operation.
The front plate gripper system 9.1 is arranged in such a way that it takes over the printing plate leading edge 4.1 and, after being taken over, is lowered into the operating position under the printing form cylinder periphery 27 of the printing form cylinder 8.
A lowerable rear plate gripper system 9.2 is also arranged in the printing form cylinder 8, which detects the printing plate trailing edge 4.2 in the area of the printing form cylinder periphery 27 of the printing form cylinder 8 and simultaneously clamps it by lowering it.
In a further embodiment variant, the auxiliary gripper system 7 arranged in the intermediate cylinder 6 with an associated coupling gear 33 (FIG. 5) serves to implement the compensation of the phase offset P via the auxiliary gripper system 7.
The coupling gear is designed so that it moves the auxiliary gripper 7 in the pressure plate conveying direction for the purpose of compensating for the phase shift P, the auxiliary gripper 7 for the purpose of transferring to or taking over from the plate gripper system 9.1 moves and swivels in the radial direction.
The swiveling and radial movement enables the plate gripper system 9 to be arranged firmly below the printing form cylinder periphery 27.
The plate gripper system 9, which is movably arranged in the printing form cylinder 8 (FIG. 6), serves to implement the compensation of the phase offset P via the plate gripper system 9.
The plate gripper system 9 is connected to an angle lever 34, which carries a cam roller 36, which is operatively connected to a swivel cam 35.
The position in which the pressure plate 4 is taken over is shown fully drawn out; the operating position is shown in dashed lines. The plate gripper system can be moved once into the operating position up to the printing form cylinder periphery 27 (FIG. 6) or only in the circumferential direction - in this position the plate gripping system 9 is not guided up to the printing form cylinder periphery.
It can be seen that the pressure application line 19 has been brought into line with the target pressure application line 37.

Nachfolgend wird die Wirkungsweise der erfindungsgemäßen Einrichtung näher beschrieben.
Der automatische Einzug von flexiblen Druckplatten 4 auf den als Plattenzylinder ausgebildeten Druckformzylinder 8 einer Bogendruckmaschine läuft wie nachfolgend beschrieben ab.The mode of operation of the device according to the invention is described in more detail below.
The automatic feeding of flexible printing plates 4 onto the printing form cylinder 8 of a sheet-fed printing press, which is designed as a plate cylinder, proceeds as described below.

Die Druckplatte 4 wird auf dem Bogenweg über den Zwischenzylinder 6 dem Druckformzylinder 8 zugeführt.
Die Zuführung der Druckplatte 4 beginnt analog der Zuführung von Bogen mit der Vereinzelung am Anleger 1, der die Druckplatte 4 an den Anlegtisch 3 übergibt. Auf den Anlegtisch 3 erfolgt die Ausrichtung der Druckplatte 4 mit Hilfe einer für die Bogenausrichtung vorhandenen Ausrichteinrichtung 12. Anschließend wird die Druckplatte 4 analog dem nicht dargestellten Bogen über den Vorgreifer 10 und die Anlegtrommel 11 zum Druckzylinder 14 des ersten Druckwerkes und bei nachgeordneten weiteren Druckwerken vom Druckzylinder 14 des ersten Druckwerkes über eine Übergabetrommel 13 zum Druckzylinder des zweiten Druckwerkes und analog zu weiteren Druckwerken mit den vorhandenen Greifersystemen 5 weitergeführt. Danach wird die Druckplatte 4 vom Druckzylinder 14 an den als Gummizylinder ausgebildeten Zwischenzylinder 6 übergeben.
Die Übergabe der Druckplatte 4 erfolgt von dem vorhandenen Greifersystem 5 des Druckzylinders 14 an das im Zwischenzylinderkanal 15 des Zwischenzylinders 6 angeordneten Hilfsgreifersystem 7. Von dem Hilfsgreifersystem 7 wird die Druckplatte 4 in das Plattengreifersystem 9 übergeben.
Nach der Übernahme der Druckplattenvorderkante 4.1 durch das vordere Plattengreifersystem 9.1 im Bereich der Druckformzylinder peripherie 27, wird das vordere Plattengreifersystem 9.1 aus der Druckformzylinderperipherie 27 abgesenkt, der Druckformzylinder 8 gedreht und die Druckplattenhinterkante 4.2 durch das hintere Plattengreifersystem 9.2 im Bereich der Druckformzylinderperipherie 27 erfaßt und geklemmt. Danach erfolgt die Absenkung des hinteren Plattengreifersystems 9.2, wodurch die Druckplatte 4 auf dem Druckformzylinder 8 gespannt wird.
Die Druckmaschine ist im Normalbetrieb/Druckbetrieb geometrisch so ausgelegt, daß die Solldruckeinsatzlinien 37 des Druckformzylinders 9, des Zwischenzylinders 6 und des Druckzylinders 14 bei der Drehung derselben zur Deckung gebracht werden. Dies bedeutet natürlich auch, daß die Solldruckeinsatzlinie 37 des Druckzylinders 14 mit der Druckeinsatzlinie 19 auf dem sich vom Greifersystem 5 gehaltenen Bogen 18 zur Erzielung eines optimalen Druckergebnisse in Übereinstimmung befinden muß.
Umgekehrt bedeutet dies, da der Abstand der Bogenvorderkante 18 zur Druckeinsatzlinie 19 und der Abstand der Druckplattenvorderkante 4.1 zur Druckeinsatzlinie 19 unterschiedlich, aber sowohl die Druckplatte 4 als auch der Bogen 18 von den Greifersystemen der Bogenführungsmechanismen gehalten werden, daß ein Phasenversatz P zwischen der Druckeinsatzlinie 19 auf dem Bogen 18 und der Druckeinsatzlinie auf der Druckplatte 4 auftritt (Fig. 2). Dieser Phasenversatz P wird durch die beschriebenen und in den Figuren 3 ... 6 dargestellten Einrichtungen bei dem Ein- und/oder Auszug von Druckplatten, d.h. im Druckplattenförderbetrieb, ausgeglichen.
Zum Ausgleich des Phasenversatzes P mittels des im Druckzylinder 14 beweglich angeordneten Greifersystems 5 wird die Druckplatte 4 zusätzlich zur Zylinderbewegung noch um den Betrag des Phasenversatzes P in Druckplattenförderrichtung bewegt und an das im Zwischenzylinder 6 angeordnete Hilfsgreifersystem 7 übergeben (Fig. 3). Das Hilfsgreifersystem 7 des Zwischenzylinders 6 kann die Druckplatte 4 in der versetzten Lage übernehmen, da dasselbe im Zwischenzylinder um den Betrag des Phasenversatzes P versetzt angeordnet ist.
Die Lage der Solldruckeinsatzlinie 37 und die Lage der Druckeinsatzlinie 19 sind, bezogen auf den Zwischenzylinder 6, damit gleich und die Druckplatte 4 kann nunmehr an das Plattengreifersystem 9, d.h. an das vordere Plattengreifersystem 9.1, übergeben werden.
Zur Druckplattenübergabe befindet sich das Plattengreifersystem 9.1 über der Druckformzylinderperipherie 27. Nach der Übernahme wird das Plattengreifersystem 9 bis unter die Druckformzylinderperipherie 27 abgesenkt.
Das im Zwischenzylinder 6 angeordnete Hilfsgreifersystem 7 wird nach der Druckplattenübergabe an den Druckformzylinder 8 in eine unwirksame Stellung unterhalb der Zwischenzylinderperipherie gebracht.
Vorzugsweise erfolgt die Bewegung des Greifersystems 5 im Druckzylinderkanal 21 auf einer Radiusbahn 22 durch das Getriebe 23; 24; 25; 26.
Zum Ausgleich des Phasenversatzes P mittels des im Zwischenzylinder 6 beweglich angeordneten Hilfsgreifersystems 7 wird die Druckplatte 4 nach der Übernahme vom Greifersystem 5 des Druckzylinders 14 zusätzlich zur Zylinderbewegung noch um den Betrag des Phasenversatzes P in Druckplattenförderrichtung bewegt und an das im Druckformzylinder 8 angeordnete Plattengreifersystem 9 übergeben (Fig. 4). Die Übernahme der Druckplatte 4 durch das Hilfsgreifersystem 7 vom Greifersystem 5 des Druckzylinders 14 erfolgt mit Phasenversatz P, wobei der Phasenversatz P durch die Bewegung des Hilfsgreifersystems 7 ausgeglichen und damit die Voraussetzung geschaffen wird, daß das vordere Plattengreifersystem 4.1 die Druckplatte 4 ohne Phasenversatz P - Solldruckeinsatzlinie 37 und Druckeinsatzlinie 19 sind bezogen auf den Druckformzylinder 8 gleich - übernehmen kann.
Vorzugsweise erfolgt die Bewegung des Hilfsgreifersystems 7 im Zwischenzylinderkanal 15 auf einer Zwischenzylinderradiusbahn 28 um den Zwischenzylindermittelpunkt 30 mittels des Getriebes 31; 32.
Zur Druckplattenübergabe befindet sich das Plattengreifersystem 9.1 über der Druckformzylinderperipherie 27. Nach der Übernahme wird das Plattengreifersystem 9 bis unter die Druckformzylinderperipherie 27 abgesenkt.
Zum Ausgleich des Phasenversatzes P mittels des im Zwischenzylinder 6 beweglich angeordneten Hilfsgreifersystems 7 wird die vom Greifersystem 5 des Druckzylinders übernommene Druckplatte 4 zusätzlich zur Zylinderbewegung noch um den Betrag des Phasenversatzes P in Druckplattenförderrichtung bewegt und an das im Druckformzylinder 8 unterhalb der Druckformzylinderperipherie 27 angeordnete Plattengreifersystem 9.1 übergeben (Fig. 5). Neben der Bewegung in Druckplattenförderrichtung führt das Hilfsgreifersystem 7 noch eine Bewegung in radialer Richtung und eine Schwenkbewegung aus. Dies ist erforderlich, um die Druckplatte 4 an das unterhalb der Druckformzylinderperipherie 27 in Normalbetriebsstellung angeordnete Plattengreifersystem 9.1 übergeben zu können.
Die Übernahme der Druckplatte 4 durch das Hilfsgreifersystem 7 vom Greifersystem 5 des Druckzylinders 14 erfolgt mit Phasenversatz P, wobei der Phasenversatz durch die Bewegung des Hilfsgreifersystems 7 in Druckplattenförderrichtung ausgeglichen und damit die Voraussetzung geschaffen wird, daß das vordere Plattengreifersystem 9.1 die Druckplatte 4 ohne Phasenversatz P übernehmen kann.
Als Antrieb für die drei Bewegungen des Hilfsgreifersystems 7 wird ein Koppelgetriebe 33 verwendet.
Zum Ausgleich des Phasenversatzes P mittels des im Druckformzylinder 8 beweglich angeordneten Plattengreifersystems 9 wird die vom Greifersystem 5 des Druckzylinders 14 über das Hilfsgreifersystem 7 des Zwischenzylinders 6 geförderte Druckplatte 4 zusätzlich zur Zylinderbewegung noch um den Betrag des Phasenversatzes P in Druckplattenförderrichtung bewegt (Fig. 6).
Die Übernahme der Druckplatte 4 durch das Plattengreifersystem 9 vom Greifersystem 5 des Druckzylinders 14 über das Hilfsgreifersystem 7 des Zwischenzylinders 6 erfolgt mit Phasenversatz P. Die Eliminierung des Phasenversatzes P erfolgt durch die Bewegung des vorderen Plattengreifersystems 9.1 in Druckplattenbewegungsrichtung, wobei das vordere Plattengreifersystem 9.1 vorzugsweise mittels eines Getriebes 34; 35; 36 so bewegt wird, daß das vordere Plattengreifersystem 9.1 nach dem Ausgleich des Phasenversatzes unter die Druckformzylinderperipherie 27 gesteuert wird. Der Auszug von flexiblen Druckplatten erfolgt in umgekehrter Reihenfolge analog zum Einzug der Druckplatten.The printing plate 4 is fed to the printing form cylinder 8 on the sheet path via the intermediate cylinder 6.
The feeding of the printing plate 4 begins analogously to the feeding of sheets with the separation at the feeder 1, which transfers the printing plate 4 to the feed table 3. The printing plate 4 is aligned on the feed table 3 with the aid of an aligning device 12 provided for the sheet alignment. The printing plate 4 is then analogous to the sheet (not shown) via the pre-gripper 10 and the feed drum 11 to the printing cylinder 14 of the first printing unit and, in the case of downstream further printing units, from the printing cylinder 14 of the first printing unit via a transfer drum 13 to the printing cylinder of the second printing unit and analogously to further printing units with the existing gripper systems 5. The printing plate 4 is then transferred from the printing cylinder 14 to the intermediate cylinder 6, which is designed as a rubber cylinder.
The transfer of the pressure plate 4 takes place from the existing gripper system 5 of the pressure cylinder 14 to the auxiliary gripper system 7 arranged in the intermediate cylinder channel 15 of the intermediate cylinder 6. The pressure plate 4 is transferred from the auxiliary gripper system 7 into the plate gripper system 9.
After taking over the leading edge 4.1 of the printing plate by the front plate gripper system 9.1 in the area of the printing form cylinder periphery 27, the front plate gripping system 9.1 is lowered from the printing form cylinder periphery 27, the printing form cylinder 8 is rotated and the printing plate trailing edge 4.2 is gripped and clamped by the rear plate gripper system 9.2 in the area of the printing form cylinder periphery 27 . The rear plate gripper system 9.2 is then lowered, as a result of which the printing plate 4 is clamped on the printing form cylinder 8.
In normal operation / printing operation, the printing press is geometrically designed in such a way that the target pressure insertion lines 37 of the printing form cylinder 9, the intermediate cylinder 6 and the printing cylinder 14 are brought to coincide with the rotation thereof. Of course, this also means that the target pressure application line 37 of the printing cylinder 14 must be in agreement with the pressure application line 19 on the sheet 18 held by the gripper system 5 in order to achieve optimal printing results.
Conversely, this means that the distance of the sheet leading edge 18 to the printing insert line 19 and the distance of the printing plate leading edge 4.1 to the printing insert line 19 differ, but both the printing plate 4 and the sheet 18 from the gripper systems of the sheet guiding mechanisms are held so that a phase shift P occurs between the printing insert line 19 on the sheet 18 and the printing insert line on the printing plate 4 (FIG. 2). This phase offset P is compensated for by the devices described and shown in FIGS. 3 to 6 when the printing plates are moved in and / or out, ie in the printing plate conveyor mode.
To compensate for the phase offset P by means of the gripper system 5 movably arranged in the pressure cylinder 14, the pressure plate 4 is moved in addition to the cylinder movement by the amount of the phase offset P in the pressure plate conveying direction and transferred to the auxiliary gripper system 7 arranged in the intermediate cylinder 6 (FIG. 3). The auxiliary gripper system 7 of the intermediate cylinder 6 can take over the pressure plate 4 in the offset position, since the same is arranged offset in the intermediate cylinder by the amount of the phase offset P.
The position of the target pressure application line 37 and the position of the pressure application line 19 are, based on the intermediate cylinder 6, the same and the pressure plate 4 can now be transferred to the plate gripper system 9, ie to the front plate gripper system 9.1.
For the transfer of printing plates, the plate gripper system 9.1 is located above the printing form cylinder periphery 27. After the transfer, the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
The auxiliary gripper system 7 arranged in the intermediate cylinder 6 is brought into an ineffective position below the periphery of the intermediate cylinder after the printing plate has been transferred to the printing form cylinder 8.
The movement of the gripper system 5 in the pressure cylinder channel 21 preferably takes place on a radius path 22 through the gear 23; 24; 25; 26.
To compensate for the phase offset P by means of the in the intermediate cylinder 6 movably arranged auxiliary gripper system 7, the pressure plate 4, after being taken over by the gripper system 5 of the printing cylinder 14, is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction and transferred to the plate gripper system 9 arranged in the printing form cylinder 8 (FIG. 4). The transfer of the pressure plate 4 by the auxiliary gripper system 7 from the gripper system 5 of the pressure cylinder 14 takes place with a phase shift P, the phase shift P being compensated for by the movement of the auxiliary gripper system 7 and thus creating the prerequisite that the front plate gripper system 4.1 the pressure plate 4 without a phase shift P - Set pressure line 37 and pressure line 19 are the same in relation to the printing form cylinder 8 - can take over.
The auxiliary gripper system 7 preferably moves in the intermediate cylinder channel 15 on an intermediate cylinder radius path 28 around the intermediate cylinder center 30 by means of the gear 31; 32.
For the transfer of printing plates, the plate gripper system 9.1 is located above the printing form cylinder periphery 27. After the transfer, the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
In order to compensate for the phase offset P by means of the auxiliary gripper system 7 which is movably arranged in the intermediate cylinder 6, the printing plate 4 taken over by the gripper system 5 of the printing cylinder is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction and to the plate gripper system 9.1 arranged in the printing plate cylinder 8 below the printing plate cylinder periphery 27 handed over (Fig. 5). In addition to the movement in the printing plate conveying direction, the auxiliary gripper system 7 also executes a movement in the radial direction and a pivoting movement. This is necessary in order to transfer the printing plate 4 to the plate gripper system 9.1 arranged below the printing form cylinder periphery 27 in the normal operating position to be able to.
The transfer of the pressure plate 4 by the auxiliary gripper system 7 from the gripper system 5 of the pressure cylinder 14 takes place with a phase shift P, the phase shift being compensated for by the movement of the auxiliary gripper system 7 in the pressure plate conveying direction and thus the prerequisite is created that the front plate gripper system 9.1 the pressure plate 4 without phase shift P. can take over.
A coupling gear 33 is used as the drive for the three movements of the auxiliary gripper system 7.
To compensate for the phase offset P by means of the plate gripper system 9 movably arranged in the printing form cylinder 8, the printing plate 4 conveyed by the gripper system 5 of the printing cylinder 14 via the auxiliary gripper system 7 of the intermediate cylinder 6 is moved in addition to the cylinder movement by the amount of the phase offset P in the printing plate conveying direction (FIG. 6) .
The transfer of the pressure plate 4 by the plate gripper system 9 from the gripper system 5 of the pressure cylinder 14 via the auxiliary gripper system 7 of the intermediate cylinder 6 takes place with phase offset P. The phase offset P is eliminated by the movement of the front plate gripper system 9.1 in the direction of pressure plate movement, the front plate gripper system 9.1 preferably using a transmission 34; 35; 36 is moved so that the front plate gripper system 9.1 is controlled after the compensation of the phase offset under the printing form cylinder periphery 27. Flexible printing plates are extracted in the reverse order to the printing plates.

BezugszeichenaufstellungList of reference symbols

11
AnlegerInvestors
22nd
DruckwerkPrinting unit
33rd
AnlegtischFeed table
44th
Druckplatteprinting plate
4.14.1
DruckplattenvorderkantePrinting plate front edge
4.24.2
DruckplattenhinterkanteTrailing plate edge
55
GreifersystemGripper system
66
ZwischenzylinderIntermediate cylinder
77
HilfsgreifersystemAuxiliary gripper system
88th
DruckformzylinderPrinting form cylinder
99
PlattengreifersystemPlate gripper system
9.19.1
vorderes Plattengreifersystemfront plate gripper system
9.29.2
hinteres Plattengreifersystemrear plate gripper system
1010th
VorgreiferForerunner
1111
AnlegtrommelFeed drum
1212th
AusrichteinrichtungAlignment device
1313
ÜbergabetrommelTransfer drum
1414
DruckzylinderImpression cylinder
1515
ZwischenzylinderkanalIntercylinder duct
1616
GummituchRubber blanket
1717th
DruckformzylinderkanalPrinting forme cylinder channel
1818th
Bogenbow
18.118.1
BogenvorderkanteLeading edge
1919th
DruckeinsatzliniePressure application line
2020th
KanalkanteChannel edge
2121
DruckzylinderkanalImpression cylinder channel
2222
RadiusbahnRadiusbahn
2323
Rollerole
2424th
KoppelPaddock
2525th
KurveCurve
2626
RollenhebelRoller lever
2727
DruckformzylinderperipheriePrinting form cylinder periphery
2828
ZwischenzylinderradiusbahnInter-cylinder radius path
2929
HebelarmLever arm
3030th
ZwischenzylindermittelpunktIntermediate cylinder center
3131
RollenhebelarmRoller lever arm
3232
BetätigungskurveActuation curve
3333
KoppelgetriebeCoupling gear
3434
WinkelhebelAngle lever
3535
SchwenkkurveSwing curve
3636
KurvenrolleCam roller
3737
SolldruckeinsatzlinieTarget pressure application line

Claims (8)

Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten auf/von mindestens einem mit einem Plattengreifersystem versehenen Druckformzylinder einer Druckmaschine über an der Druckmaschine vorhandene, mit Greifersystemen bestückte Bogenführungszylinder enthaltende Bogenfördermittel und einem mit einem Hilfsgreifersystem versehenen Zwischenzylinder, dadurch gekennzeichnet, daß mindestens ein Greifersystem (5; 7; 9) zum Ausgleich des Phasenversatzes (P) der Druckeinsatzlinien (19) bezogen auf die Druckplattenvorderkante (4.1) und die Bogenvorderkante (18.1) relativ zur Bogen- und/oder Druckplattenförderrichtung beweglich ausgestaltet ist.Device for the automatic insertion and / or removal of flexible printing plates on / from at least one printing plate cylinder provided with a plate gripper system of a printing press via sheet conveying means provided on the printing press with sheet guiding systems equipped with gripper systems and an intermediate cylinder provided with an auxiliary gripper system, characterized in that at least one Gripper system (5; 7; 9) to compensate for the phase offset (P) of the printing insert lines (19) in relation to the printing plate front edge (4.1) and the sheet front edge (18.1) is designed to be movable relative to the sheet and / or printing plate conveying direction. Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach Anspruch 1, dadurch gekennzeichnet, daß das im Zwischenzylinder (6) angeordnete Hilfsgreifersystem (7) um den Betrag des Phasenversatzes (P) der Druckeinsatzlinien (19) bezogen auf die Druckplattenvorderkante (4.1) und die Bogenvorderkante (18.1) in Druckplattenförderrichtung versetzt angeordnet und das Greifersystem (5) des Druckzylinders (14) im Druckzylinderkanal (21) in Bogen-und Druckplattenförderrichtung auf einer Radiusbahn (22) um den Betrag des Phasenversatzes (P) verschiebbar angeordnet ist.Device for the automatic insertion and / or removal of flexible printing plates according to claim 1, characterized in that the auxiliary gripper system (7) arranged in the intermediate cylinder (6) by the amount of the phase offset (P) of the printing insert lines (19) in relation to the front edge of the printing plate (4.1 ) and the sheet leading edge (18.1) offset in the printing plate conveying direction and the gripper system (5) of the printing cylinder (14) in the printing cylinder channel (21) in the sheet and printing plate conveying direction on a radius path (22) is displaceable by the amount of the phase offset (P). Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach Anspruch 1, dadurch gekennzeichnet, daß das im Druckformzylinder (8) angeordnete Plattengreifersystem (9) radial bis auf und unter die Druckformzylinderperipherie (27) des Druckformzylinders (8) beweglich angeordnet und das Hilfsgreifersystem (7) des Zwischenzylinders (6) im Zwischenzylinderkanal (15) in Druckplattenförderrichtung auf einer Zwischenzylinderradiusbahn (28) um den Betrag des Phasenversatses (P) verschwenkbar angeordnet ist.Device for the automatic insertion and / or removal of flexible printing plates according to claim 1, characterized in that the plate gripper system (9) arranged in the printing form cylinder (8) is arranged to be movable radially up to and below the printing form cylinder periphery (27) of the printing form cylinder (8) and that Auxiliary gripper system (7) of the intermediate cylinder (6) in the intermediate cylinder channel (15) in the pressure plate conveying direction is arranged on an inter-cylinder radius path (28) pivotable by the amount of the phase offset (P). Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach Anspruch 1, dadurch gekannzeichnet, daß dem im Zwischenzylinder (6) angeordneten Hilfsgreifersystem (7) ein Koppelgetriebe (33) zum Zwecke des Ausglelches des Phasenversatze (P) in Druckplattenförderrichtung und zum Zwecke der Übergabe auf das bzw. die Übernahme von dem im Druckformzylinder (8) unterhalb der Druckformzylinderperipherie (27) angeordnete Plattengreifersystem (9) schwenkbar und in Druckplattenförderrichtung und in radialer Richtung bewegbar zugeordnet ist.Device for automatic insertion and / or removal of flexible printing plates according to claim 1, characterized in that the auxiliary gripper system (7) arranged in the intermediate cylinder (6) has a coupling gear (33) for the purpose of compensating the phase offset (P) in the printing plate conveying direction and for the purpose is assigned to the transfer to or transfer from the plate gripper system (9) arranged in the printing form cylinder (8) below the printing form cylinder periphery (27) and is movable in the printing plate conveying direction and in the radial direction. Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach Anspruch 1, dadurch gekennzeichnet, daß das Plattengreifersystem (9) des Druckformzylinders (8) im Druckformzylinderkanal (17) in Druckplattenförderrichtung auf einer Druckformzylinderradiusbahn verschwenkbar angeordnet ist.Device for the automatic insertion and / or removal of flexible printing plates according to claim 1, characterized in that the plate gripper system (9) of the printing form cylinder (8) in the printing form cylinder channel (17) is arranged to be pivotable in the printing plate conveying direction on a printing form cylinder radius path. Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach Anspruch 1, dadurch gekennzeichnet, daß das Plattengreifersystem (9) des Druckformzylinders (8) im Druckformzylinderkanal (17) in Druckplattenförderrichtung auf einer Kurvenbahn bis unter die Druckformzylinderperipherie (27) führbar angeordnet ist.Device for the automatic insertion and / or removal of flexible printing plates according to claim 1, characterized in that the plate gripper system (9) of the printing form cylinder (8) is arranged in the printing form cylinder channel (17) in the printing plate conveying direction on a cam track to below the printing form cylinder periphery (27) . Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Greifersystem (5; 7; 9) beim Einzug von flexiblen Druckplatten (4) in Normaldrehrichtung verschiebbar ist.Device for the automatic insertion and / or removal of flexible printing plates according to one of the preceding claims, characterized in that the gripper system (5; 7; 9) can be displaced in the normal direction of rotation when flexible printing plates (4) are drawn in. Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Greifersystem (5; 7; 9) beim Auszug von flexiblen Druckplatten (4) entgegen der Normaldrehrichtung verschiebbar ist.Device for automatically pulling in and / or pulling out flexible printing plates according to one of the preceding claims, characterized in that the gripper system (5; 7; 9) can be moved against the normal direction of rotation when pulling out flexible printing plates (4).
EP94118916A 1993-12-04 1994-12-01 Device for automatically mounting and/or demounting flexible printing plates Expired - Lifetime EP0657284B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341358 1993-12-04
DE4341358A DE4341358A1 (en) 1993-12-04 1993-12-04 Device for automatic insertion and / or removal of flexible printing plates

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EP0657284B1 EP0657284B1 (en) 1997-03-19

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DE10203059B4 (en) * 2001-02-20 2014-12-04 Heidelberger Druckmaschinen Ag Device with a cylinder having a gripper system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206536A (en) * 1987-07-02 1989-01-11 Heidelberger Druckmasch Ag Multi-colour printing machine
DE4220011A1 (en) * 1992-05-16 1993-11-18 Kba Planeta Ag Automatic fitting and/or removal of flexible forme plates - guides forme plate from feeder via intermediate feeders by auxiliary grippers on intermediate cylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206536A (en) * 1987-07-02 1989-01-11 Heidelberger Druckmasch Ag Multi-colour printing machine
DE4220011A1 (en) * 1992-05-16 1993-11-18 Kba Planeta Ag Automatic fitting and/or removal of flexible forme plates - guides forme plate from feeder via intermediate feeders by auxiliary grippers on intermediate cylinder

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DE4341358A1 (en) 1995-06-08
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