EP0657286B1 - 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
EP0657286B1
EP0657286B1 EP94118919A EP94118919A EP0657286B1 EP 0657286 B1 EP0657286 B1 EP 0657286B1 EP 94118919 A EP94118919 A EP 94118919A EP 94118919 A EP94118919 A EP 94118919A EP 0657286 B1 EP0657286 B1 EP 0657286B1
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EP
European Patent Office
Prior art keywords
cylinder
printing
printing plates
extraction
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94118919A
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German (de)
French (fr)
Other versions
EP0657286A1 (en
Inventor
Michael Dr. Koch
Arndt Jentzsch
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.)
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 EP0657286A1 publication Critical patent/EP0657286A1/en
Application granted granted Critical
Publication of EP0657286B1 publication Critical patent/EP0657286B1/en
Anticipated expiration legal-status Critical
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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
    • 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 extraction 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, of one or more sheet conveying means leading to the printing unit.
  • the sheet conveying means are designed as sheet guide cylinders or as chain guides, not shown.
  • Sheet guiding cylinders are the cylinders which 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 perfecting and 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.
  • 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.
  • at least one cylinder 14; 6; 8 is designed to be adjustable relative to the sheet and / or printing plate conveying direction, an additional movement in the direction of rotation taking place when the printing plates 4 are drawn in and counter to the direction of rotation when the printing plates are pulled out. For normal operation (printing operation), the cylinders remain in the starting position, drawing in printing plates.
  • the adjustable pressure cylinder 14 shown in FIG. 3 is used to compensate for the phase offset via the pressure cylinder 14.
  • the pressure cylinder 14 changes its position relative to the intermediate cylinder 6 during printing plate conveying operation compared to normal operation.
  • the auxiliary gripper system 7 of the intermediate cylinder 6 is by the amount of the phase offset P in the intermediate cylinder is offset from the channel edge 20.
  • the auxiliary gripper system 7 can be pivoted in normal operation to below the intermediate cylinder periphery.
  • the pressure plate 4 is transferred from the gripper system 5 of the pressure cylinder 14 to the staggered auxiliary gripper system 7 of the intermediate cylinder 6 after the phase offset compensation.
  • the means for detachable connection between the leg and the pressure cylinder drive wheel 21 are generally known and are therefore not shown and not described.
  • a flange 40 with a stop pin 25 is arranged on the leg of the pressure cylinder 14 and engages in a radius elongated hole 26 arranged in the pressure cylinder drive wheel 21.
  • the length of the radius elongated hole 26 corresponds to the amount of the phase offset P. According to a variant shown in FIGS.
  • the flange 40 is designed as a toothed wheel 29 which is operatively connected to a motor pinion 30; Gear 29 and motor pinion 30 form an adjusting means.
  • a first pivot point 31 is arranged in the pressure cylinder drive wheel 21 and a second pivot point 32 is arranged on the flange.
  • a spreader roller lever 33 is articulated with a common cam roller 34 which is operatively connected to a pivotable cam 35.
  • the spreading roller levers 33 are connected to one another by a spring 36; the spreading roller lever 33 and the curve 35 form the adjusting means.
  • FIG. 8 is on the pressure cylinder drive wheel 21, a first hinge point 31 and a second hinge point 32 are arranged on the flange 40.
  • a working cylinder 38 is arranged between the articulation points.
  • a gearwheel 29 is arranged on the flange 40 and the gearwheel 29 is connected to the pressure cylinder drive wheel 21 by a three-wheel gear 39 which can be adjusted via a working cylinder 38.
  • the adjustable intermediate cylinder 6 shown in FIG. 4 is used to compensate for the phase offset P via the intermediate cylinder 6.
  • 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 offset 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 is behind the printing plate edge 4.2 in the area of the printing form cylinder periphery 27 of the printing form cylinder 8 and simultaneously clamped by lowering.
  • the design of the intermediate cylinder 6 with respect to the compensation of the phase offset corresponds to the design of the printing cylinder 14 already described, ie the design variants shown in FIGS. 6 ... 9 can also be used for the intermediate cylinder 6.
  • To realize the compensation of the phase offset P over the Printing form cylinder 8 is used for the adjustably designed printing form cylinder 8 (FIG. 5).
  • the pressure plate 4 is transferred from the auxiliary gripper system 7 of the intermediate cylinder 6 to the plate gripper system 9 of the printing form cylinder 8 and the phase offset is compensated.
  • the design of the printing form cylinder 8 in relation to the compensation of the phase offset corresponds to the design of the printing cylinder 14 already described, ie the design variants shown in FIGS. 6 ... 9 can also be used for the printing form cylinder 8. It can be seen from FIG. 5 that the pressure application line 19 has been brought into line with the target pressure application line 37 by the compensation of the phase offset.
  • 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 which is provided for the sheet alignment.
  • the printing plate 4 is 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 printing units Printing cylinder 14 of the first printing unit via a transfer drum 13 to the printing cylinder of the second printing unit and similar to other printing units with the existing gripper systems 5 continued.
  • 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 pressure plate 4 is transferred 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 gripper system 9.1 After the front plate gripper system 9.1 has been taken over 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 application lines 37 of the printing form cylinder 8, 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.
  • This phase offset P is compensated for by the devices described and illustrated in FIGS. 3 to 9 when the printing plates are moved in and / or out, ie in the printing plate conveyor mode.
  • 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 is located above the printing form cylinder periphery 27. After the takeover, 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 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 pressure plate 4 is taken over by the auxiliary gripper system 7 from the gripper system 5 of the pressure cylinder 14 with a phase shift P, whereby the phase offset P is compensated for by the movement of the intermediate cylinder 6 and thus the prerequisite is created that the front plate gripper system 9.1 can take over the printing plate 4 without a phase offset P - target pressure insert line 37 and pressure insert line 19 are the same in relation to the printing form cylinder 8.
  • the plate gripper system 9 is located above the printing form cylinder periphery 27. After the takeover, the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
  • 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. 5).
  • the pressure plate 4 is taken over 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 with a phase offset P.
  • the phase offset P is eliminated by moving the printing form cylinder 8 in the printing plate movement direction.
  • the connection between the printing cylinder drive wheel 21 and the flange 40 or the connection of the other cylinder drive wheels 23, 28 mentioned with the respective flanges 40 is released using generally known means.
  • the rotation by the phase offset is limited by the length of the radius elongated hole 26.
  • the spreading roller levers 33 with the common cam roller 34 serve to initiate the twisting movement.
  • the curve 35 By pivoting the curve 35 into the working area of the cam roller 34, since the first articulation point 31 acts as a fixed point, the second articulation point 32 arranged on the flange 40 is moved with the same relative to the first articulation point 31.
  • the mechanism shown in FIG. 8 with the working cylinder 38 also serves to initiate the rotating movement.
  • the working cylinder 38 By actuating the working cylinder 38, which is supported against the drive wheel acting as a fixed point, the cylinder body is rotated.
  • the three-wheel transmission 39 shown in FIGS. 9a, 9b also serves to initiate the rotational movement.
  • the twisting movement is reversed again (twisting in the opposite direction). After the twisting movement in the opposite direction has ended and the starting position has been reached, the connection between the cylinder drive wheel and the cylinder arm is restored. Flexible printing plates are extracted in the reverse order to the printing plates.

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

Description

Die Erfindung betrifft eine Einrichtung zum automatischen Ein- und/oder Auszug von flexiblen Druckplatten an Druckmaschinen.The invention relates to a device for the automatic insertion and / or removal of flexible printing plates on printing machines.

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).A method and a device for the automatic insertion and / or extraction 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 1 gelöst.According to the invention the object is achieved by the characterizing part of patent claim 1.

Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher beschrieben.
In den Zeichnungen zeigen

Fig. 1
: Bogendruckmaschine
Fig. 2
: Phasenversatz
Fig. 3
: Verstellbarer Druckzylinder
Fig. 4
: Verstellbarer Zwischenzylinder
Fig. 5
: Verstellbarer Druckformzylinder
Fig. 6a; b
: Zylinderverstellung I
Fig. 7
: Zylinderverstellung II
Fig. 8
: Zylinderverstellung III
Fig. 9a; b
: Zylinderverstellung IV
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
: Adjustable pressure cylinder
Fig. 4
: Adjustable intermediate cylinder
Fig. 5
: Adjustable printing form cylinder
Fig. 6a; b
: Cylinder adjustment I
Fig. 7
: Cylinder adjustment II
Fig. 8
: Cylinder adjustment III
Fig. 9a; b
: Cylinder adjustment IV

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 dem Förderweg einer bestimmten Druckplatte in einem Druckwerk 2, der Druckzylinder 14, liegt an einem als Gummizylinder ausgebildeten Zwischenzylinder 6 an.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, of one or more sheet conveying means leading to the printing unit. The sheet conveying means are designed as sheet guide cylinders or as chain guides, not shown.
Sheet guiding cylinders are the cylinders which 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 perfecting and printing machines, the SW drum (not shown).
The respective last sheet guide cylinder in the conveying path of a specific printing plate in a printing unit 2, the printing cylinder 14, bears against an intermediate cylinder 6 designed as a rubber cylinder.

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.
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 Zylinder 14; 6; 8 relativ zur Bogen- und/oder Druckplattenförderrichtung verstellbar ausgestaltet, wobei beim Einzug der Druckplatten 4 eine Zusatzbewegung in Drehrichtung und beim Auszug der Druckplatten entgegen der Drehrichtung erfolgt. Für den Normalbetrieb (Druckbetrieb) verbleiben die Zylinder in der Ausgangsstellung Einzug von Druckplatten.
Zur Realisierung des Ausgleiches des Phasenversatzes über den Druckzylinder 14 dient der in Fig. 3 dargestellte verstellbar gestaltete Druckzylinder 14.
Der Druckzylinder 14 verändert relativ zum Zwischenzylinder 6 beim Druckplattenförderbetrieb seine Lage gegenüber dem 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.
Die Druckplatte 4 wird von dem Greifersystem 5 des Druckzylinders 14 nach dem Phasenversatzausgleich an das versetzt angeordnete Hilfsgreifersystem 7 des Zwischenzylinders 6 übergeben.
Zur Verstellung des Druckzylinders 14 ist das Druckzylinderantriebsrad 21, welches im Zahneingriff mit den vor- und nachgeordneten Übergabetrommelantriebsrädern 22 und dem Zwischenzylinderantriebsrad 23 steht, lösbar an dem Schenkel des Druckzylinders 14 angeordnet (Fig. 1; Fig. 6...9). Die Mittel zur lösbaren Verbindung zwischen dem Schenkel und dem Druckzylinderantriebsrad 21 sind allgemein bekannt und deshalb nicht dargestellt und nicht beschrieben.
Auf dem Schenkel des Druckzylinders 14 ist ein Flansch 40 mit einem Anschlagbolzen 25 angeordnet, der in ein im Druckzylinderantriebsrad 21 angeordnetes Radiuslangloch 26 eingreift. Die Länge des Radiuslangloches 26 entspricht dabei dem Betrag des Phasenversatzes P.
Nach einer in Fig. 6a und 6b dargestellten Variante ist der Flansch 40 als Zahnrad 29 ausgebildet, welches mit einem Motorritzel 30 in Wirkverbindung steht; Zahnrad 29 und Motorritzel 30 bilden ein Verstellmittel.
Nach einer in Fig. 7 dargestellten Variante ist im Druckzylinderantriebsrad 21 ein erster Gelenkpunkt 31 und an dem Flansch ein zweiter Gelenkpunkt 32 angeordnet. An jedem Gelenkpunkt ist je ein Spreizrollenhebel 33 mit einer gemeinsamen Kurvenrolle 34, die mit einer einschwenkbaren Kurve 35 in Wirkverbindung steht, angelenkt. Die Spreizrollenhebel 33 sind durch eine Feder 36 miteinander verbunden; der Spreizrollenhebel 33 und die Kurve 35 bilden das Verstellmittel.
Nach einer in Fig. 8 dargestellten Variante ist am Druckzylinderantriebsrad 21 ein erster Gelenkpunkt 31 und am Flansch 40 ein zweiter Gelenkpunkt 32 angeordnet. Zwischen den Gelenkpunkten ist ein Arbeitszylinder 38 angeordnet.
Nach einer in Fig. 9a, 9b dargestellten Variante ist am Flansch 40 ein Zahnrad 29 angeordnet und das Zahnrad 29 mit dem Druckzylinderantriebsrad 21 durch ein über einen Arbeitszylinder 38 anstellbares Dreirädergetriebe 39 verbunden.
Zur Realisierung des Ausgleiches des Phasenversatzes P über den Zwischenzylinder 6 dient der in Fig. 4 dargestellte verstellbar gestaltete Zwischenzylinder 6.
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 Druckplattenhinter
kante 4.2 im Bereich der Druckformzylinderperipherie 27 des Druckformzylinders 8 erfaßt und durch Absenken gleichzeitig spannt.
Die Ausbildung des Zwischenzylinders 6 in Bezug auf den Ausgleich des Phasenversatzes entspricht der Ausbildung des bereits beschriebenen Druckzylinders 14, d.h. die in den Fig. 6...9 dargestellten Ausführungsvarianten sind auch für den Zwischenzylinder 6 anwendbar.
Zur Realisierung des Ausgleiches des Phasenversatzes P über den Druckformzylinder 8 dient der verstellbar gestaltete Druckformzylinder 8 (Fig. 5).
Die Druckplatte 4 wird von dem Hilfsgreifersystem 7 des Zwischenzylinders 6 an das Plattengreifersystem 9 des Druckformzylinders 8 übergeben und der Phasenversatz ausgeglichen.
Die Ausbildung des Druckformzylinders 8 in Bezug auf den Ausgleich des Phasenversatzes entspricht der Ausbildung des bereits beschriebenen Druckzylinders 14, d.h. die in den Fig. 6...9 dargestellten Ausführungsvarianten sind auch für den Druckformzylinder 8 anwendbar.
Es ist aus der Fig. 5 ersichtlich, daß durch den Ausgleich des Phasenversatzes die Druckeinsatzlinie 19 mit der Solldruckeinsatzlinie 37 in Einklang gebracht wurde.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.
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 cylinder 14; 6; 8 is designed to be adjustable relative to the sheet and / or printing plate conveying direction, an additional movement in the direction of rotation taking place when the printing plates 4 are drawn in and counter to the direction of rotation when the printing plates are pulled out. For normal operation (printing operation), the cylinders remain in the starting position, drawing in printing plates.
The adjustable pressure cylinder 14 shown in FIG. 3 is used to compensate for the phase offset via the pressure cylinder 14.
The pressure cylinder 14 changes its position relative to the intermediate cylinder 6 during printing plate conveying operation compared to normal operation.
The auxiliary gripper system 7 of the intermediate cylinder 6 is by the amount of the phase offset P in the intermediate cylinder is offset from the channel edge 20. The auxiliary gripper system 7 can be pivoted in normal operation to below the intermediate cylinder periphery.
The pressure plate 4 is transferred from the gripper system 5 of the pressure cylinder 14 to the staggered auxiliary gripper system 7 of the intermediate cylinder 6 after the phase offset compensation.
To adjust the pressure cylinder 14, the pressure cylinder drive wheel 21, which is in meshing engagement with the upstream and downstream transfer drum drive wheels 22 and the intermediate cylinder drive wheel 23, is detachably arranged on the leg of the pressure cylinder 14 (Fig. 1; Fig. 6 ... 9). The means for detachable connection between the leg and the pressure cylinder drive wheel 21 are generally known and are therefore not shown and not described.
A flange 40 with a stop pin 25 is arranged on the leg of the pressure cylinder 14 and engages in a radius elongated hole 26 arranged in the pressure cylinder drive wheel 21. The length of the radius elongated hole 26 corresponds to the amount of the phase offset P.
According to a variant shown in FIGS. 6a and 6b, the flange 40 is designed as a toothed wheel 29 which is operatively connected to a motor pinion 30; Gear 29 and motor pinion 30 form an adjusting means.
According to a variant shown in FIG. 7, a first pivot point 31 is arranged in the pressure cylinder drive wheel 21 and a second pivot point 32 is arranged on the flange. At each pivot point a spreader roller lever 33 is articulated with a common cam roller 34 which is operatively connected to a pivotable cam 35. The spreading roller levers 33 are connected to one another by a spring 36; the spreading roller lever 33 and the curve 35 form the adjusting means.
According to a variant shown in Fig. 8 is on the pressure cylinder drive wheel 21, a first hinge point 31 and a second hinge point 32 are arranged on the flange 40. A working cylinder 38 is arranged between the articulation points.
According to a variant shown in FIGS. 9a, 9b, a gearwheel 29 is arranged on the flange 40 and the gearwheel 29 is connected to the pressure cylinder drive wheel 21 by a three-wheel gear 39 which can be adjusted via a working cylinder 38.
The adjustable intermediate cylinder 6 shown in FIG. 4 is used to compensate for the phase offset P via the intermediate cylinder 6.
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 offset 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 is behind the printing plate
edge 4.2 in the area of the printing form cylinder periphery 27 of the printing form cylinder 8 and simultaneously clamped by lowering.
The design of the intermediate cylinder 6 with respect to the compensation of the phase offset corresponds to the design of the printing cylinder 14 already described, ie the design variants shown in FIGS. 6 ... 9 can also be used for the intermediate cylinder 6.
To realize the compensation of the phase offset P over the Printing form cylinder 8 is used for the adjustably designed printing form cylinder 8 (FIG. 5).
The pressure plate 4 is transferred from the auxiliary gripper system 7 of the intermediate cylinder 6 to the plate gripper system 9 of the printing form cylinder 8 and the phase offset is compensated.
The design of the printing form cylinder 8 in relation to the compensation of the phase offset corresponds to the design of the printing cylinder 14 already described, ie the design variants shown in FIGS. 6 ... 9 can also be used for the printing form cylinder 8.
It can be seen from FIG. 5 that the pressure application line 19 has been brought into line with the target pressure application line 37 by the compensation of the phase offset.

Nachfolgend wird die Wirkungsweise der erfindungsgemäßen Einrichtung näher beschrieben.The mode of operation of the device according to the invention is described in more detail below.

Der automatische Einzug von flexiblen Druckplatten 4 auf den als Plattenzylinder ausgebildeten Druckformzylinder 8 einer Bogendruckmaschine läuft wie nachfolgend beschrieben ab.The automatic feeding of flexible printing plates 4 onto the printing form cylinder 8 of a sheet-fed printing press designed as a plate cylinder takes place 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 Druckformzylinderperipherie 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 8, 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 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).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 which is provided for the sheet alignment. Then the printing plate 4 is 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 printing units Printing cylinder 14 of the first printing unit via a transfer drum 13 to the printing cylinder of the second printing unit and similar to other printing units with the existing gripper systems 5 continued. 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 pressure plate 4 is transferred 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 the front plate gripper system 9.1 has been taken over 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 application lines 37 of the printing form cylinder 8, 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 since the distance of the sheet leading edge 18 to the printing insert line 19 and the distance of the printing plate leading edge to the printing insert line 19 are different, but both the printing plate 4 and the sheet 18 are held by the gripper systems of the sheet guiding mechanisms, a phase shift P between the printing insert line 19 is present the sheet 18 and the pressure insert line occurs on the printing plate 4 (Fig. 2).

Dieser Phasenversatz P wird durch die beschriebenen und in den Figuren 3...9 dargestellten Einrichtungen bei dem Ein- und/oder Auszug von Druckplatten, d.h. im Druckplattenförderbetrieb, ausgeglichen.
Zum Ausgleich des Phasenversatzes P mittels des verstellbar angeordneten Druckzylinders 14 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 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.
Zum Ausgleich des Phasenversatzes P mittels des verstellbar angeordneten Zwischenzylinders 6 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 Zwischenzylinders 6 ausgeglichen und damit die Voraussetzung geschaffen wird, daß das vordere Plattengreifersystem 9.1 die Druckplatte 4 ohne Phasenversatz P - Solldruckeinsatzlinie 37 und Druckeinsatzlinie 19 sind bezogen auf den Druckformzylinder 8 gleich - übernehmen kann.
Zur Druckplattenübergabe befindet sich das Plattengreifersystem 9 über der Druckformzylinderperipherie 27. Nach der Übernahme wird das Plattengreifersystem 9 bis unter die Druckformzylinderperipherie 27 abgesenkt.
Zum Ausgleich des Phasenversatzes P mittels des verstellbar angeordneten Druckformzylinder 8 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. 5).
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 Druckformzylinders 8 in Druckplattenbewegungsrichtung.This phase offset P is compensated for by the devices described and illustrated in FIGS. 3 to 9 when the printing plates are moved in and / or out, ie in the printing plate conveyor mode.
In order to compensate for the phase offset P by means of the adjustably arranged 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 is located above the printing form cylinder periphery 27. After the takeover, 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.
To compensate for the phase offset P by means of the adjustably arranged intermediate cylinder 6, 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 pressure plate 4 is taken over by the auxiliary gripper system 7 from the gripper system 5 of the pressure cylinder 14 with a phase shift P, whereby the phase offset P is compensated for by the movement of the intermediate cylinder 6 and thus the prerequisite is created that the front plate gripper system 9.1 can take over the printing plate 4 without a phase offset P - target pressure insert line 37 and pressure insert line 19 are the same in relation to the printing form cylinder 8.
For the transfer of printing plates, the plate gripper system 9 is located above the printing form cylinder periphery 27. After the takeover, the plate gripping system 9 is lowered to below the printing form cylinder periphery 27.
To compensate for the phase offset P by means of the adjustably arranged 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. 5).
The pressure plate 4 is taken over 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 with a phase offset P.
The phase offset P is eliminated by moving the printing form cylinder 8 in the printing plate movement direction.

Zur Realisierung der Verstellung des Druckzylinders 14 oder des Zwischenzylinders 6 oder des Druckformzylinders 8 wird die Verbindung zwischen dem Druckzylinderantriebsrad 21 und dem Flansch 40 bzw. die Verbindung der anderen genannten Zylinderantriebsräder 23, 28 mit den jeweiligen Flanschen 40 mit allgemein bekannten Mitteln gelöst. Damit ist es möglich den Zylinderkörper relativ zum Antriebsrad, welches in Zahneingriff mit anderen Antriebsrädern steht, zu verdrehen. Der Verdrehung um den Phasenversatz ist durch die Länge des Radiuslangloches 26 begrenzt.
Zur Einleitung der Verdrehbewegung dient in der ersten Variante ein Motorritzel 30, welches in das auf dem Zylinderschenkel angeordnete Zahnrad 29 eingreift. Durch die Drehbewegung des Motorritzels 30 wird der Zylinderkörper 24 gegenüber dem Antriebsrad verdreht.
Zur Einleitung der Verdrehbewegung dienen in der zweiten Variante die Spreizrollenhebel 33 mit der gemeinsamen Kurvenrolle 34, die in Wirkverbindung mit der Kurve 35 steht. Durch das Einschwenken der Kurve 35 in den Arbeitsbereich der Kurvenrolle 34 wird, da der erste Gelenkpunkt 31 als Festpunkt wirkt, der am Flansch 40 angeordnete zweite Gelenkpunkt 32 mit demselben relativ zum ersten Gelenkpunkt 31 bewegt.
Zur Einleitung der Verdrehbewegung dient auch der in Fig. 8 dargestellte Mechanismus mit dem Arbeitszylinder 38. Durch die Betätigung des Arbeitszylinders 38, der sich gegen das als Festpunkt wirkende Antriebsrad abstützt, wird der Zylinderkörper verdreht.
Zur Einleitung der Verdrehbewegung dient auch das in Fig. 9a, 9b dargestellte Dreirädergetriebe 39.
Nach Ausführung der Verdrehbewegung und damit des Ausgleiches des Phasenversatzes sowie der Übergabe der Druckplatte an den nächsten Zylinder wird die Verdrehbewegung wieder rückgängig gemacht (Verdrehung in entgegengesetzte Richtung). Nach Beendigung der Verdrehbewegung in entgegengesetzter Richtung und Erreichung der Ausgangslage wird die Verbindung zwischen Zylinderantriebsrad und Zylinderschenkel wieder hergestellt.
Der Auszug von flexiblen Druckplatten erfolgt in umgekehrter Reihenfolge analog zum Einzug der Druckplatten.In order to implement the adjustment of the printing cylinder 14 or the intermediate cylinder 6 or the printing form cylinder 8, the connection between the printing cylinder drive wheel 21 and the flange 40 or the connection of the other cylinder drive wheels 23, 28 mentioned with the respective flanges 40 is released using generally known means. This makes it possible to rotate the cylinder body relative to the drive wheel, which is in meshing engagement with other drive wheels. The rotation by the phase offset is limited by the length of the radius elongated hole 26.
In the first variant, a motor pinion 30, which is arranged in the one arranged on the cylinder leg, serves to initiate the twisting movement Gear 29 engages. Due to the rotary movement of the motor pinion 30, the cylinder body 24 is rotated relative to the drive wheel.
In the second variant, the spreading roller levers 33 with the common cam roller 34, which is in operative connection with the cam 35, serve to initiate the twisting movement. By pivoting the curve 35 into the working area of the cam roller 34, since the first articulation point 31 acts as a fixed point, the second articulation point 32 arranged on the flange 40 is moved with the same relative to the first articulation point 31.
The mechanism shown in FIG. 8 with the working cylinder 38 also serves to initiate the rotating movement. By actuating the working cylinder 38, which is supported against the drive wheel acting as a fixed point, the cylinder body is rotated.
The three-wheel transmission 39 shown in FIGS. 9a, 9b also serves to initiate the rotational movement.
After executing the twisting movement and thus compensating for the phase offset and transferring the pressure plate to the next cylinder, the twisting movement is reversed again (twisting in the opposite direction). After the twisting movement in the opposite direction has ended and the starting position has been reached, the connection between the cylinder drive wheel and the cylinder arm is restored.
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
DruckzylinderantriebsradPrinting cylinder drive wheel
2222
ÜbergabetrommelantriebsradTransfer drum drive wheel
2323
ZwischenzylinderantriebsradIntermediate cylinder drive wheel
2424th
DruckzylinderkörperImpression cylinder body
2525th
AnschlagbolzenStop bolts
2626
RadiuslanglochRadius slot
2727
DruckformzylinderperipheriePrinting form cylinder periphery
2828
DruckformzylinderantriebsradPrinting forme cylinder drive wheel
2929
Zahnradgear
3030th
MotorritzelMotor pinion
3131
erster Gelenkpunktfirst hinge point
3232
zweiter Gelenkpunktsecond hinge point
3333
SpreizrollenhebelSpreading roller lever
3434
KurvenrolleCam roller
3535
KurveCurve
3636
Federfeather
3737
SolldruckeinsatzlinieTarget pressure application line
3838
ArbeitszylinderWorking cylinder
3939
DreirädergetriebeThree-wheel transmission
4040
Flanschflange
PP
PhasenversatzPhase shift

Claims (11)

  1. Device for the automatic introduction and/or extraction of flexible printing plates (4) onto or from at least one print cylinder (8) equipped with a plate gripper system (9) and forming part of a printing press by means of the sheet feeding mechanism already present on the printing press and comprising a sheet guide roller (13;14) equipped with gripper systems (5) and by means of an intermediate roller (6) equipped with an auxiliary gripper system (7) thereby characterised that at least one gripper system (5;7;9) is designed to be capable of travel to compensate for phase displacement (p) of the print application lines (19) in relation to the leading edge of the printing plate (4.1) and the leading edge of the sheet (18.1) relative to the direction of advance of the sheet and/or printing plate.
  2. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 1 thereby characterised that the auxiliary gripper system (7) incorporated in the intermediate roller (6) is capable of being displaced to an extent equivalent to the phase displacement (p) of the print insertion lines (19) in relation to the printing plate leading edge (4.1) and the sheet leading edge (18.1) along the direction of printing plate advance and that the gripper system (5) of the print cylinder (14) is designed to be capable of displacement along a radial path (22) within the print cylinder channel (21) to an extent equivalent to the phase displacement (p).
  3. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 1 thereby characterised that the plate gripper system (9) on the print cylinder (8) is designed to travel radially as far as and below the print cylinder periphery (27) of the print cylinder (8) and the auxiliary gripper system (7) on the intermediate roller (6) is designed to swing away within the intermediate roller channel (15) in the direction of advance of the printing plate along a path radial to the intermediate cylinder to an extent equivalent to the phase displacement (p).
  4. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 1 thereby characterised that the print cylinder (8) is capable of being displaced in the direction of advance of the printing plate.
  5. Device for the automatic introduction and/or extraction of flexible printing plates as described in one of the above Claims thereby characterised that the cylinder (14;6;8) can be displaced in the normal direction of rotation when introducing flexible printing plates (4).
  6. Device for the automatic insertion and/or extraction of flexible printing plates (4) as described in one of the above Claims thereby characterised that the cylinder (14;6;8) can be displaced in a direction counter to the normal direction of rotation when extracting flexible printing plates.
  7. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 1 above thereby characterised that a limiter rod (25) is fitted onto a flange (40) attached to one end-face of the print roller, intermediate roller, or print cylinder (14;6;8), and a radial groove (26) is positioned on the corresponding cylinder drive wheel (21;23;28), the end-face and the cylinder drive wheel being detachably connected by means of a commonly available device, and the flange (40) linked mechanically to an adjuster.
  8. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 7 above thereby characterised that the adjuster consists of a drive pinion (30) mechanically engaged in a toothed wheel (29) attached to a flange (40).
  9. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 7 thereby characterised that the adjuster consists of a roller spacing lever (33) comprising a cam roller (34) mechanically engaged with an introducible curve (35) mounted between the flange (40) and the drive-wheel.
  10. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 7 thereby characterised that the adjuster consists of a working cylinder (38) positioned between the flange (40) and the drive wheel.
  11. Device for the automatic introduction and/or extraction of flexible printing plates as described in Claim 7 thereby characterised that the means of adjustment comprises a triple-wheeled drive (39) operated through a working cylinder (38) and positioned between the flange (40) and the drive wheel.
EP94118919A 1993-12-04 1994-12-01 Device for automatically mounting and/or demounting flexible printing plates Expired - Lifetime EP0657286B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341385A DE4341385A1 (en) 1993-12-04 1993-12-04 Device for automatic insertion and / or removal of flexible printing plates
DE4341385 1993-12-04

Publications (2)

Publication Number Publication Date
EP0657286A1 EP0657286A1 (en) 1995-06-14
EP0657286B1 true EP0657286B1 (en) 1997-03-19

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ID=6504189

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Application Number Title Priority Date Filing Date
EP94118919A Expired - Lifetime EP0657286B1 (en) 1993-12-04 1994-12-01 Device for automatically mounting and/or demounting flexible printing plates

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Country Link
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DE (2) DE4341385A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027876A1 (en) * 2006-06-16 2007-12-20 Man Roland Druckmaschinen Ag Rotary press

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3721879A1 (en) * 1987-07-02 1989-01-12 Heidelberger Druckmasch Ag METHOD AND PRINTING MACHINE FOR MULTI-COLORED PRINTING
DE4220011C2 (en) * 1992-05-16 1995-09-07 Kba Planeta Ag Process and device for the automatic insertion and / or removal of flexible printing plates

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EP0657286A1 (en) 1995-06-14
DE4341385A1 (en) 1995-06-08

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