EP0808714B1 - Apparatus for axially positioning of a printing plate - Google Patents

Apparatus for axially positioning of a printing plate Download PDF

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Publication number
EP0808714B1
EP0808714B1 EP97107854A EP97107854A EP0808714B1 EP 0808714 B1 EP0808714 B1 EP 0808714B1 EP 97107854 A EP97107854 A EP 97107854A EP 97107854 A EP97107854 A EP 97107854A EP 0808714 B1 EP0808714 B1 EP 0808714B1
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EP
European Patent Office
Prior art keywords
cylinder
plate
printing
printing plate
pressure 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
EP97107854A
Other languages
German (de)
French (fr)
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EP0808714A3 (en
EP0808714A2 (en
Inventor
Bernhard Walter Wolfgang Muth
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Publication of EP0808714A2 publication Critical patent/EP0808714A2/en
Publication of EP0808714A3 publication Critical patent/EP0808714A3/en
Application granted granted Critical
Publication of EP0808714B1 publication Critical patent/EP0808714B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/005Attaching and registering printing formes to supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/10Attaching several printing plates on one cylinder
    • B41P2227/11Attaching several printing plates on one cylinder in axial direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/30Detecting the correct position of printing plates on the cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/40Adjusting means for printing plates on the cylinder
    • B41P2227/41Adjusting means for printing plates on the cylinder axially
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00Printing
    • Y10S101/36Means for registering or alignment of print plates on print press structure

Definitions

  • the invention relates to a device for axial Position a printing plate according to the generic term of claim 1.
  • a suction element performs a linear movement between a delivery roller and a plate cylinder and thus transports the printing plate. Between the delivery roller and the plate cylinder there is a positioning table on which the suction element places the plate. The positioning table positions the plate, whereupon it is gripped again by the suction element and transported further to the plate cylinder.
  • the disadvantage of this device is that the The suction plate holds the positioned plate Errors can occur and the plate only in one, position that cannot be selected.
  • DE 42 38 800 A1 describes a method for Aligning printing plates. There are gaps between reference marks and edges of the printing plates measured. Differences of these distances of Different printing plates are used to align the associated plate cylinder used.
  • the invention has for its object a Device for the axial positioning of a pressure plate to create on a plate cylinder.
  • the fan-out phenomenon describes the axial register deviation of a pixel to be printed in multi-color printing from printing point to printing point on a material web.
  • This register deviation depends, for example, on the grammage and the properties (penetration behavior, type) of the paper web, the type of subject to be printed and the printing speed.
  • penetration behavior, type the properties of the paper web
  • axial register deviations can be of different sizes for different print jobs.
  • side register stops which are assigned axially adjacent printing plates have been set accordingly. With the device according to the invention it is possible to preselect different positions remotely and to position the pressure plate accordingly on the cylinder. This avoids time-consuming manual adjustment of the side register stops.
  • the device according to the invention is in the drawing shown and is described in more detail below.
  • Fig. 1 shows a cylinder 1 one Rotary printing machine with easily bendable, arcuate objects 2, preferably printing plates 2nd
  • each of the easily bendable, arcuate objects 2, front and rear hook-in edges 3, 4 are arranged at their opposite ends, the respective legs 6, 7 of which enclose an opening angle alpha of less than 90 °.
  • These hook-in folds 3, 4 are designed to be dimensionally stable, ie when the objects 2 are clamped on the cylinder 1, these hook-in folds 3, 4 are not bent open.
  • This object 2 designed in this way can also consist of printing rubber blankets which are provided with hooked-in folds 3, 4.
  • These dimensionally stable hook-in folds 3, 4 of the printing rubber blankets can be folded ends of a metal plate on which the printing rubber blanket has been firmly bonded, for example glued or vulcanized.
  • the fabric inserts of the printing rubber blanket can be made of CFRP (carbon fiber reinforced plastic) or GRP (glass fiber reinforced plastic) and the hooked-in folds 3, 4 can be formed therefrom.
  • CFRP carbon fiber reinforced plastic
  • GRP glass fiber reinforced plastic
  • the cylinder 1 of the rotary printing press which is mounted in two side frames 8, 9, is associated with an inking unit protection 11 which is close to the cylinder and is designed as a first printing plate preparation device 12.
  • This pressure plate supply device 12 has an upper and a lower, the upper opposite wall 13, 14, which together form a shaft 16.
  • the plate cylinder near end 17 of the upper wall 13 is formed approximately parallel to a tangent 21, which is determined by a cylindrical surface 22 of the cylinder 1 and the hanging bar 19 of the printing plate preparation device 12.
  • a second one Printing plate supply device 23 arranged be, whose plate cylinder end 24 also with a hanging strip 26 with a nose-shaped cross section is provided and approximately parallel to that of Cylinder surface 22 of the cylinder 1 and Hanging rails 19 of the first Printing plate supply device 12 set Tangent 21 is formed.
  • Linear drive 27, 28 attached, for example each from threaded spindles 29, 31 which are rotatable in trestles 32, 33, 34, 36 are mounted on the frame, consists.
  • Other known linear drives can also be used 27, 28 such as e.g. B. belt or chain drives, Rack and pinion drives, hydraulic or pneumatic Servo cylinders or linear motors can be used.
  • a strap 37 e.g. B. timing belt
  • the right and left threaded spindle 29, 31 mechanically synchronized, becomes a synchronous rotary movement by a drive 38 of the threaded spindles 29, 31 generated.
  • This Synchronization can also be done mechanically, for example Chain or cardan shafts or electronically via two separate drives 38 of the linear drives 27, 28 respectively.
  • the two threaded spindles 29, 31 move one Traverse 39 parallel to the axis of rotation 18 of the cylinder 1 in a transport plane 41, which is above and approximately parallel to the cylinder jacket surface 22 of the cylinder 1 and hanger 19 of the Determine printing plate supply device 12 Tangent 21 lies.
  • At the two ends of this traverse 39 are each threaded nuts 42 so that the Traverse 39 at right angles with the threaded spindles 29, 31 is in operative connection.
  • at least one gripping and pressing device 43 in illustrated example are four gripping and Pressure devices 43 attached.
  • Each one, an axial cylinder section associated printing plate 2 is an independent operable gripping and pressing device 43 assigned. It is also possible with an additional one Linear drive through which a single gripping and Pressure device 43 an axial movement along the Traverse 39 executes, several along the cylinder 1 arranged pressure plates 2 with only a single gripping and Pressure device 43 to change.
  • a gripping and pressing device 43 consists of at least one gripper unit 44 and at least one pressure roller 46.
  • This gripper unit 44 and the pressure rollers 46 are independent of the cylinder 1 in the radial direction "D", the gripper unit 44 also in the axial direction "C” displaceable from one another by positioning devices.
  • the gripping and pressing device 43 is constructed approximately symmetrically to the center line of the pressure plate 2 running in the cylinder circumferential direction:
  • Each gripping and pressing device 43 is a gripper unit 44 in the form of z.
  • two suction strips 47 are formed which are perpendicular to a guide bar 48 against rotation tangential direction "B" of the cylinder 1 and are pressed by compression springs 49 in the direction "B" against a stop 51.
  • These guide strips 48 are on another Guide bar 52 attached and by one Positioning drive 53 against direction “C” slidable.
  • a pneumatic cylinder 54 causes one Change in position of the guide bar 52 with the Squeegees 47 along the direction "D".
  • Suction strips 47 are each a pressure roller 46 opposed by a pneumatic cylinder 56 Direction "D" to be placed on the pressure plate 2 can.
  • the positioning drive 53 can be designed, for example, as a stepper motor with a threaded spindle 55.
  • An electric motor with interacting incremental encoders or potentiometers is also possible.
  • means for detecting its position or the position of the pressure plate 2 preferably cooperate with the positioning drive 53.
  • the cylinder 1 in axial direction, parallel to the axis of rotation 18 of the Cylinder 1 in cylinder pits 62, four Closures 57, 58, 59, 61 arranged.
  • the length of the Closures 57, 58, 59, 61 are each about half Cylinder length.
  • These closures 57, 58, 59, 61 are subdivided again to plate width (i.e. per Closure 57, 58, 59, 61 are two pressure plates each 2 provided) and are both within this Subdivision as well as independently actuatable.
  • the closures 57, 58 are in Circumferential direction of the cylinder 1 to each other by approximately 90 ° transferred.
  • Each closure 57, 58 is one Closure 59, 61 assigned opposite.
  • the new pressure plate 84 to be applied was on the top wall 13 and on the hanging bar 19 of the Printing plate supply device 12 pre-positioned.
  • the suction strips 47 are by venting the Pneumatic cylinder 54 to the level of the pressure plate 84 lowered and charged with suction air. This will the printing plate 84 with its printing side on the Gripping and pressing device 43 fixed.
  • each of a plurality of axially adjacent pressure plates 84 at least two side register stops 86, 66 assigned. At least one of these two Side register stops 66, 86 can be directly on the Hanging rails 19 the Printing plate supply device 12 or also separately in an area between the Printing plate supply device 12 and the Cylinder 1 may be arranged (Fig. 3).
  • a Side register stop 86 on the cylinder 1 omitted.
  • the in the area between Printing plate supply device 12 and cylinder 1 arranged side register device 67 consists of three side register stops arranged one after the other 68, 69, 71 which are in the axial direction of the cylinder 1 are staggered with respect to each other (Fig. 4).
  • These page register stops 68, 69, 71 are for example, each with a threaded screw 91, 92, 93 and a linear bearing 94, 96, 97 Finely adjustable.
  • only one side register stop 72, 74 is displaceably arranged in a bearing 98, 99, wherein this can be brought into different positions offset from one another in the axial direction of the cylinder 1.
  • the side register stop 72 can be attached to a stationary working cylinder 73 (FIG. 5). A piston of this working cylinder 73 moves the side register stop 72 in two positions.
  • a side register stop 74 in a continuously adjustable manner in the axial direction of the cylinder 1.
  • the side register stop 74 can be positioned, for example, by means of a threaded spindle 77 driven by an electric motor 76 (FIG. 6).
  • the pressure plate 84 is axially aligned as follows at the side register stops 66-69, 71, 72, 74: If a plurality of side register stops 66-69, 71, 86 are arranged one behind the other as in the first and second exemplary embodiments, the gripping and pressing device 43 moves with the gripped pressure plate 84 in the direction “B” a preselected one which is assigned to the desired side register stop 66-69, 71, 86 Position.
  • the positioning drive 53 moves the gripper unit 44 in the axial direction until the pressure plate 84 with her Insert folding 3 against the respective Side register stop 66-69, 71, 72, 74, 86 pressed becomes. Then the positioning drive 53 switched off. This can be done, for example, by a Limiting the current draw of an electric driven positioning drive 53 or it can also be a sensor in the area of the power flow Determination of the contact pressure may be arranged. Likewise it is possible from the relationship between the distance traveled and the required time of the pressure plate 84 or the Positioning drive 53 a criterion for Determine shutdown.
  • the side register stops 66-69, 71, 72, 74, 86 can also sensors for detecting the position of the Pressure plate 84 may be provided. It is particularly suitable a CCD sensor for determining the position of the printing plate 84 and to control the positioning drive 53 Gripper unit 44. This CCD sensor can be advantageous partially from the side edge of the pressure plate 84 covering and stationary with respect to the side frame be attached. The CCD sensor is related to one assigned specific position of the cylinder 1 aligned.
  • the pressure plate 84 After the gripper unit gripped the pressure plate 84 has the starting position using the CCD sensor the pressure plate 84 determined. Of this The positioning drive starts from the starting position 53 operated until the pressure plate 84 the desired Position with respect to the CCD sensor and therefore with respect of cylinder 1 has reached. The positioning drive 53 is now switched off and the pressure plate 84 is in Transported towards cylinder 1.
  • Another embodiment has two sensors for position detection on the gripping and pressing device 43 and a reference point on the cylinder 1.
  • the first sensor which detects a side edge of the pressure plate 84, is fastened to the cross member 39 in the region of a side edge of the pressure plate 84.
  • the second sensor which detects the reference point, is arranged to be movable with the gripper unit 44 in the region of the reference point located on the cylinder 1.
  • the gripper unit 44 with the second sensor is moved in the axial direction until the reference point of the cylinder 1 is reached. This reference position is stored by the control of the positioning drive 53.
  • the control of the positioning drive 53 calculates a distance by which the pressure plate 84 can still be displaced. The positioning drive 53 then performs the necessary axial movement of the pressure plate 84.
  • the further assembly can, for example, according to the described in DE 44 24 931 A1.
  • Pressure plates in assigned cylinder sections mountable next to each other, at least one Cylinder section several lying side by side selectable target positions. Every cylinder section, to which a printing plate is assigned are several adjacent selectable target positions assigned. By selecting the cylinder section the "rough position" of the plate is determined. Within the cylinder section is by selection a target position from several in the axial direction adjacent target positions the "fine position" fixed.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum axialen Positionieren einer Druckplatte gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device for axial Position a printing plate according to the generic term of claim 1.

Die DE 28 04 970 A1 beschreibt eine Einrichtung zur Montage und Demontage von Druckplatten in einer Rotationsdruckmaschine.
Dabei führt ein Saugorgan eine lineare Bewegung zwischen einer Abgabewalze und einem Plattenzylinder aus und transportiert damit die Druckplatte.
Zwischen Abgabewalze und Plattenzylinder befindet sich ein Positioniertisch auf den das Saugorgan die Platte ablegt. Der Positioniertisch positioniert die Platte, worauf diese wieder von dem Saugorgan ergriffen wird und weiter zum Plattenzylinder transportiert wird.
DE 28 04 970 A1 describes a device for assembling and disassembling printing plates in a rotary printing press.
A suction element performs a linear movement between a delivery roller and a plate cylinder and thus transports the printing plate.
Between the delivery roller and the plate cylinder there is a positioning table on which the suction element places the plate. The positioning table positions the plate, whereupon it is gripped again by the suction element and transported further to the plate cylinder.

Nachteilig ist an dieser Einrichtung, daß bei der Aufnahme der positionierten Platte durch das Saugorgan Fehler entstehen können und die Platte nur in eine, nicht vorwählbare Position gebracht werden kann.The disadvantage of this device is that the The suction plate holds the positioned plate Errors can occur and the plate only in one, position that cannot be selected.

Die DE 195 31 024 A1 und die DE 44 24 931 A1 offenbaren Druckplattenwechseleinrichtungen, bei denen eine Druckplatte in axialer Richtung positioniert wird. DE 195 31 024 A1 and DE 44 24 931 A1 disclose Printing plate changing devices, in which a Pressure plate is positioned in the axial direction.

Die DE 42 38 800 A1 beschreibt ein Verfahren zum Ausrichten von Druckplatten. Dabei werden Abstände zwischen Bezugsmarken und Rändern der Druckplatten ausgemessen. Differenzen dieser Abstände der verschiedenen Druckplatten werden zur Ausrichtung des zugehörigen Plattenzylinders benutzt.DE 42 38 800 A1 describes a method for Aligning printing plates. There are gaps between reference marks and edges of the printing plates measured. Differences of these distances of Different printing plates are used to align the associated plate cylinder used.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum axialen Positionieren einer Druckplatte auf einem Plattenzylinder zu schaffen. The invention has for its object a Device for the axial positioning of a pressure plate to create on a plate cylinder.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den Merkmalen des Anspruches 1 gelöst.This object is achieved by a Device with the features of claim 1 solved.

In vorteilhafter Weise kann mit der erfindungsgemäßen Vorrichtung eine Druckplatte in verschiedenen Positionen registergenau auf den Plattenzylinder montiert werden.Advantageously, with the invention Device a printing plate in different positions mounted exactly on the plate cylinder.

Damit kann das sogenannte Fan-Out-Phänomen kompensiert werden. Unter dem Fan-Out-Phänomen wird die axiale Passerabweichung eines zu druckenden Bildpunktes im Mehrfarbendruck von Druckstelle zu Druckstelle auf einer Materialbahn bezeichnet. Diese Passerabweichung ist beispielsweise abhängig von der Grammatur und den Eigenschaften (Penetrationsverhalten, Typ) der Papierbahn, der Art des zu druckenden Sujets und der Druckgeschwindigkeit. Dies hat zur Folge, daß axiale Passerabweichungen bei unterschiedlichen Druckaufträgen verschieden groß sein können. Um diese Passerabweichungen zu kompensieren, werden bisher Seitenregisteranschläge, die axial nebeneinander liegenden Druckplatten zugeordnet sind, entsprechend eingestellt.
Mit der erfindungsgemäßen Vorrichtung ist es möglich, unterschiedliche Positionen ferngesteuert vorzuwählen und die Druckplatte entsprechend auf dem Zylinder zu positionieren. Dadurch werden aufwendige manuelle Einstellarbeiten der Seitenregisteranschläge vermieden.
This can be used to compensate for the so-called fan-out phenomenon. The fan-out phenomenon describes the axial register deviation of a pixel to be printed in multi-color printing from printing point to printing point on a material web. This register deviation depends, for example, on the grammage and the properties (penetration behavior, type) of the paper web, the type of subject to be printed and the printing speed. As a result, axial register deviations can be of different sizes for different print jobs. In order to compensate for these register deviations, side register stops which are assigned axially adjacent printing plates have been set accordingly.
With the device according to the invention it is possible to preselect different positions remotely and to position the pressure plate accordingly on the cylinder. This avoids time-consuming manual adjustment of the side register stops.

Ist ein Referenzpunkt zur Detektion der Position der Druckplatte auf dem Zylinder angeordnet, werden Ungenauigkeiten infolge des Transportes der Druckplatte mittels der Transportmittel reduziert.Is a reference point for the detection of the position of the Pressure plate arranged on the cylinder Inaccuracies due to the transport of the printing plate reduced by means of transport.

Die erfindungsgemäße Vorrichtung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.The device according to the invention is in the drawing shown and is described in more detail below.

Es zeigen

Fig. 1
eine schematische Darstellung in Draufsicht einer Vorrichtung zur Montage von Druckplatten,
Fig. 2
eine schematische Darstellung einer Greif- und Andrückeinrichtung der Vorrichtung aus Fig. 1,
Fig. 3
eine schematische Seitenansicht der Vorrichtung mit zugehörigem Zylinder und Bereitstellungseinrichtungen aus Fig. 1,
Fig. 4
eine schematische Draufsicht auf eine Seitenregistereinrichtung gemäß einem zweiten Beispiel,
Fig. 5
eine schematische Draufsicht auf einen verstellbaren Seitenregisteranschlag gemäß einem dritten Beispiel,
Fig. 6
eine schematische Draufsicht auf einen verstellbaren Seitenregisteranschlag gemäß einem vierten Beispiel.
Show it
Fig. 1
1 shows a schematic illustration in plan view of a device for mounting printing plates,
Fig. 2
1 shows a schematic illustration of a gripping and pressing device of the device from FIG. 1,
Fig. 3
2 shows a schematic side view of the device with associated cylinder and preparation devices from FIG. 1,
Fig. 4
2 shows a schematic top view of a page register device according to a second example,
Fig. 5
2 shows a schematic top view of an adjustable side register stop according to a third example,
Fig. 6
is a schematic plan view of an adjustable side register stop according to a fourth example.

Für die in den Fig. 5 und 6 und zugehöriger Beschreibung offenbarten Gegenstände wird kein Schutz begehrt.For the description in FIGS. 5 and 6 and associated description no protection is sought.

Fig. 1 zeigt einen Zylinder 1 einer Rotationsdruckmaschine mit leicht biegbaren, bogenförmigen Gegenständen 2, vorzugsweise Druckplatten 2.Fig. 1 shows a cylinder 1 one Rotary printing machine with easily bendable, arcuate objects 2, preferably printing plates 2nd

An jedem leicht biegbaren, bogenförmigen Gegenstand 2 sind an dessen gegenüberliegenden Enden jeweils vordere und hintere Einhängeabkantungen 3, 4 angeordnet, deren jeweilige Schenkel 6, 7 einen Öffnungswinkel Alpha kleiner als 90° einschließen. Diese Einhängeabkantungen 3, 4 sind formstabil ausgebildet, d. h. beim Spannen der Gegenstände 2 auf dem Zylinder 1 werden diese Einhängeabkantungen 3, 4 nicht aufgebogen. Dieser derart gestaltete Gegenstand 2 kann auch aus Druckgummitüchern, die mit Einhängeabkantungen 3, 4 versehen sind, bestehen.
Diese formstabilen Einhängeabkantungen 3, 4 der Druckgummitücher können abgekantete Enden einer Metallplatte sein, auf der das Druckgummituch stoffschlüssig befestigt, beispielsweise geklebt oder vulkanisiert wurde. Auch können insbesondere die Gewebeeinlagen des Druckgummituches aus CFK (Kohlefaser verstärkter Kunststoff) oder GFK (Glasfaser verstärkter Kunststoff) gefertigt und daraus die Einhängeabkantungen 3, 4 geformt sein. Vereinfachend wird im folgenden dieser beschriebene Gegenstand Druckplatte 2 genannt.
On each of the easily bendable, arcuate objects 2, front and rear hook-in edges 3, 4 are arranged at their opposite ends, the respective legs 6, 7 of which enclose an opening angle alpha of less than 90 °. These hook-in folds 3, 4 are designed to be dimensionally stable, ie when the objects 2 are clamped on the cylinder 1, these hook-in folds 3, 4 are not bent open. This object 2 designed in this way can also consist of printing rubber blankets which are provided with hooked-in folds 3, 4.
These dimensionally stable hook-in folds 3, 4 of the printing rubber blankets can be folded ends of a metal plate on which the printing rubber blanket has been firmly bonded, for example glued or vulcanized. In particular, the fabric inserts of the printing rubber blanket can be made of CFRP (carbon fiber reinforced plastic) or GRP (glass fiber reinforced plastic) and the hooked-in folds 3, 4 can be formed therefrom. To simplify matters, this described object is called pressure plate 2 in the following.

Dem Zylinder 1 der Rotationsdruckmaschine, der in zwei Seitengestellen 8, 9 gelagert ist, ist ein zylindernaher, gestellfester Farbwerkschutz 11 zugeordnet, der als eine erste Druckplatten-Bereitstellungseinrichtung 12 ausgebildet ist.
Diese Druckplatten-Bereitstellungseinrichtung 12 weist eine obere und eine untere, der oberen gegenüberliegenden Wand 13, 14 auf, die zusammen einen Schacht 16 bilden. An einem plattenzylindernahen Ende 17 der oberen Wand 13 ist eine sich über die Breite des Zylinders 1 erstreckende, parallel zu einer Drehachse 18 des Zylinders 1 verlaufende Einhängeleiste 19 mit nasenförmigem Querschnitt angebracht. Das plattenzylindernahe Ende 17 der oberen Wand 13 ist annähernd parallel zu einer Tangente 21, die von einer Zylindermantelfläche 22 des Zylinders 1 und der Einhängeleiste 19 der Druckplatten-Bereitstellungseinrichtung 12 bestimmt wird, ausgebildet.
The cylinder 1 of the rotary printing press, which is mounted in two side frames 8, 9, is associated with an inking unit protection 11 which is close to the cylinder and is designed as a first printing plate preparation device 12.
This pressure plate supply device 12 has an upper and a lower, the upper opposite wall 13, 14, which together form a shaft 16. On a plate cylinder-near end 17 of the upper wall 13 there is a hanging bar 19 with a nose-shaped cross-section that extends across the width of the cylinder 1 and runs parallel to an axis of rotation 18 of the cylinder 1. The plate cylinder near end 17 of the upper wall 13 is formed approximately parallel to a tangent 21, which is determined by a cylindrical surface 22 of the cylinder 1 and the hanging bar 19 of the printing plate preparation device 12.

Neben der ersten Druckplatten-Bereitstellungseinrichtung 12 kann wie im vorliegenden Beispiel eine zweite Druckplatten-Bereitstellungseinrichtung 23 angeordnet sein, deren plattenzylindernahes Ende 24 ebenfalls mit einer Einhängeleiste 26 mit nasenförmigen Querschnitt versehen ist und annähernd parallel zu der von Zylindermantelfläche 22 des Zylinders 1 und der Einhängeleiste 19 der ersten Druckplatten-Bereitstellungseinrichtung 12 festgelegten Tangente 21 ausgebildet ist.In addition to the first printing plate preparation device 12 can, as in the present example, a second one Printing plate supply device 23 arranged be, whose plate cylinder end 24 also with a hanging strip 26 with a nose-shaped cross section is provided and approximately parallel to that of Cylinder surface 22 of the cylinder 1 and Hanging rails 19 of the first Printing plate supply device 12 set Tangent 21 is formed.

Oberhalb und parallel zu dieser Tangente 21 ist in den Seitengestellen 8, 9 jeweils eine rechter und linker Linearantrieb 27, 28 befestigt, der beispielsweise jeweils aus Gewindespindeln 29, 31 die drehbar in gestellfesten Böcken 32, 33, 34, 36 gelagert sind, besteht. Ebenso können andere bekannte Linearantriebe 27, 28, wie z. B. Riemen- bzw. Kettenantriebe, Zahnstangenantriebe, hydraulische bzw. pneumatische Servozylinder oder Linearmotoren eingesetzt werden. Über einen Riemen 37, z. B. Zahnriemen, der die rechte und linke Gewindespindel 29, 31 mechanisch synchronisiert, wird durch einen Antrieb 38 eine synchrone Drehbewegung der Gewindespindeln 29, 31 erzeugt. Diese Synchronisation kann beispielsweise mechanisch auch über Ketten- oder Gelenkwellen oder elektronisch über zwei getrennte Antriebe 38 der Linearantriebe 27, 28 erfolgen. Die beiden Gewindespindeln 29, 31 bewegen eine zur Drehachse 18 des Zylinders 1 parallele Traverse 39 in einer Transportebene 41, die oberhalb und annähernd parallel zur von Zylindermantelfläche 22 des Zylinders 1 und Einhängeleiste 19 der Druckplatten-Bereitstellungseinrichtung 12 bestimmten Tangente 21 liegt. An den beiden Enden dieser Traverse 39 sind jeweils Gewindemuttern 42 angeordnet, so daß die Traverse 39 rechtwinklig mit den Gewindespindeln 29, 31 in Wirkverbindung steht. Entlang dieser Traverse 39 ist mindestens eine Greif- und Andrückeinrichtung 43, im dargestellten Beispiel sind vier Greif- und Andrückeinrichtungen 43 befestigt.Above and parallel to this tangent 21 is in the Side frames 8, 9 one on the right and one on the left Linear drive 27, 28 attached, for example each from threaded spindles 29, 31 which are rotatable in trestles 32, 33, 34, 36 are mounted on the frame, consists. Other known linear drives can also be used 27, 28 such as e.g. B. belt or chain drives, Rack and pinion drives, hydraulic or pneumatic Servo cylinders or linear motors can be used. about a strap 37, e.g. B. timing belt, the right and left threaded spindle 29, 31 mechanically synchronized, becomes a synchronous rotary movement by a drive 38 of the threaded spindles 29, 31 generated. This Synchronization can also be done mechanically, for example Chain or cardan shafts or electronically via two separate drives 38 of the linear drives 27, 28 respectively. The two threaded spindles 29, 31 move one Traverse 39 parallel to the axis of rotation 18 of the cylinder 1 in a transport plane 41, which is above and approximately parallel to the cylinder jacket surface 22 of the cylinder 1 and hanger 19 of the Determine printing plate supply device 12 Tangent 21 lies. At the two ends of this traverse 39 are each threaded nuts 42 so that the Traverse 39 at right angles with the threaded spindles 29, 31 is in operative connection. Along this traverse is 39 at least one gripping and pressing device 43, in illustrated example are four gripping and Pressure devices 43 attached.

Jeder einzelnen, einem axialen Zylinderabschnitt zugehörigen Druckplatte 2 ist eine unabhängig betätigbare Greif- und Andrückeinrichtung 43 zugeordnet. Ebenso ist es aber auch möglich mit einem zusätzlichen Linearantrieb, durch den eine einzige Greif- und Andrückeinrichtung 43 eine axiale Bewegung entlang der Traverse 39 ausführt, mehrere entlang des Zylinders 1 angeordnete Druckplatten 2 mit nur einer einzigen Greif- und Andrückeinrichtung 43 zu wechseln.Each one, an axial cylinder section associated printing plate 2 is an independent operable gripping and pressing device 43 assigned. It is also possible with an additional one Linear drive through which a single gripping and Pressure device 43 an axial movement along the Traverse 39 executes, several along the cylinder 1 arranged pressure plates 2 with only a single gripping and Pressure device 43 to change.

In Fig. 2 sind die Elemente einer Greif- und Andrückeinrichtung 43 dargestellt:
Eine Greif- und Andrückeinrichtung 43 besteht aus mindestens einer Greifereinheit 44 und mindestens einer Andrückrolle 46. Diese Greifereinheit 44 und die Andrückrollen 46 sind bezüglich des Zylinders 1 in radialer Richtung "D", die Greifereinheit 44 zusätzlich noch in axialer Richtung "C", unabhängig voneinander durch Positioniereinrichtungen verschiebbar.
The elements of a gripping and pressing device 43 are shown in FIG. 2:
A gripping and pressing device 43 consists of at least one gripper unit 44 and at least one pressure roller 46. This gripper unit 44 and the pressure rollers 46 are independent of the cylinder 1 in the radial direction "D", the gripper unit 44 also in the axial direction "C" displaceable from one another by positioning devices.

Im vorliegenden Beispiel ist die Greif- und Andrückeinrichtung 43 annähernd symmetrisch zur in Zylinderumfangsrichtung verlaufenden Mittellinie der Druckplatte 2 aufgebaut:
Je Greif- und Andrückeinrichtung 43 ist eine Greifereinheit 44 in Form von z. B. zwei Saugleisten 47 ausgebildet, die senkrecht zu einer Führungsleiste 48 verdrehgesichert entgegen tangentialer Richtung "B" des Zylinders 1 verschiebbar sind und durch Druckfedern 49 in Richtung "B" gegen einen Anschlag 51 gedrückt werden.
In the present example, the gripping and pressing device 43 is constructed approximately symmetrically to the center line of the pressure plate 2 running in the cylinder circumferential direction:
Each gripping and pressing device 43 is a gripper unit 44 in the form of z. B. two suction strips 47 are formed which are perpendicular to a guide bar 48 against rotation tangential direction "B" of the cylinder 1 and are pressed by compression springs 49 in the direction "B" against a stop 51.

Diese Führungsleisten 48 sind an einer weiteren Führungsleiste 52 befestigt und durch einen Positionierantrieb 53 entgegen Richtung "C" verschiebbar. Ein Pneumatikzylinder 54 bewirkt eine Positionsveränderung der Führungsleiste 52 mit den Saugleisten 47 entlang der Richtung "D". Neben den Saugleisten 47 befindet sich jeweils eine Andrückrolle 46, die über einen Pneumatikzylinder 56 entgegen Richtung "D" auf die Druckplatte 2 angestellt werden kann.These guide strips 48 are on another Guide bar 52 attached and by one Positioning drive 53 against direction "C" slidable. A pneumatic cylinder 54 causes one Change in position of the guide bar 52 with the Squeegees 47 along the direction "D". In addition to the Suction strips 47 are each a pressure roller 46 opposed by a pneumatic cylinder 56 Direction "D" to be placed on the pressure plate 2 can.

Der Positionierantrieb 53 kann beispielsweise als Schrittmotor mit Gewindespindel 55 ausgeführt sein. Auch ist ein Elektromotor mit zusammenwirkenden Inkrementalgeber oder Potentiometer möglich.
Vorzugsweise wirken also mit dem Positionierantrieb 53 Mittel zum Detektieren seiner Stellung oder der Stellung der Druckplatte 2 zusammen.
The positioning drive 53 can be designed, for example, as a stepper motor with a threaded spindle 55. An electric motor with interacting incremental encoders or potentiometers is also possible.
Thus, means for detecting its position or the position of the pressure plate 2 preferably cooperate with the positioning drive 53.

Im vorliegenden Beispiel sind in dem Zylinder 1 in axialer Richtung, parallel zur Drehachse 18 des Zylinders 1 in Zylindergruben 62 verlaufend, vier Verschlüsse 57, 58, 59, 61 angeordnet. Die Länge der Verschlüsse 57, 58, 59, 61 beträgt jeweils ca. halbe Zylinderlänge. Diese Verschlüsse 57, 58, 59, 61 sind nochmals auf Plattenbreite unterteilt (d. h. pro Verschluß 57, 58, 59, 61 sind jeweils zwei Druckplatten 2 vorgesehen) und sind sowohl innerhalb dieser Unterteilung als auch untereinander unabhängig betätigbar. Die Verschlüsse 57, 58 sind in Umfangsrichtung des Zylinders 1 um ca. 90° zueinander versetzt. Jedem Verschluß 57, 58 ist jeweils ein Verschluß 59, 61 gegenüberliegend zugeordnet.In the present example, the cylinder 1 in axial direction, parallel to the axis of rotation 18 of the Cylinder 1 in cylinder pits 62, four Closures 57, 58, 59, 61 arranged. The length of the Closures 57, 58, 59, 61 are each about half Cylinder length. These closures 57, 58, 59, 61 are subdivided again to plate width (i.e. per Closure 57, 58, 59, 61 are two pressure plates each 2 provided) and are both within this Subdivision as well as independently actuatable. The closures 57, 58 are in Circumferential direction of the cylinder 1 to each other by approximately 90 ° transferred. Each closure 57, 58 is one Closure 59, 61 assigned opposite.

Zum Aufspannen einer neuen Druckplatte 84 dreht der Zylinder 1 in eine Aufspannposition, die dadurch bestimmt wird, daß die Mittellinie des Verschlusses 57 annähernd deckungsgleich mit dem von der Drehachse 18 auf die senkrecht zur Bewegungsrichtung der Linearantriebe 27, 28 gefällten Lot 81 ist. Die Traverse 39 wird mittels der beiden Linearantriebe 27, 28 in Position zur Aufnahme der neuen Druckplatte 84 gebracht, d. h. die Saugleisten 47 stehen in Bereich des plattenzylindernahen Endes 17 der Druckplatten-Bereitstellungseinrichtung 12. Durch Betätigen des Positionierantriebes 53 wird die Greifereinheit 44 entgegen Richtung "C" verschoben.To clamp a new pressure plate 84, the Cylinder 1 in a clamping position, which thereby it is determined that the center line of the shutter 57 approximately congruent with that of the axis of rotation 18 on the perpendicular to the direction of movement of the Linear drives 27, 28 precipitated solder 81. The traverse 39 is by means of the two linear drives 27, 28 in Position for receiving the new pressure plate 84, d. H. the suction strips 47 are in the range of plate cylinder end 17 of the Printing plate supply device 12. By Operating the positioning drive 53 is the Gripper unit 44 moved in the opposite direction "C".

Die neu aufzubringende Druckplatte 84 wurde auf der oberen Wand 13 und an der Einhängeleiste 19 der Druckplatten-Bereitstellungseinrichtung 12 vorpositioniert aufgelegt.The new pressure plate 84 to be applied was on the top wall 13 and on the hanging bar 19 of the Printing plate supply device 12 pre-positioned.

Die Saugleisten 47 werden durch Entlüften des Pneumatikzylinders 54 auf das Niveau der Druckplatte 84 abgesenkt und mit Saugluft beaufschlagt. Dadurch wird die Druckplatte 84 mit ihrer druckenden Seite an der Greif- und Andrückeinrichtung 43 fixiert.The suction strips 47 are by venting the Pneumatic cylinder 54 to the level of the pressure plate 84 lowered and charged with suction air. This will the printing plate 84 with its printing side on the Gripping and pressing device 43 fixed.

Zur axialen Ausrichtung einer Druckplatte 84 sind beispielsweise folgende Mittel vorgesehen:For the axial alignment of a pressure plate 84 are For example, the following funds are provided:

In einem ersten Ausführungsbeispiel sind jeder von mehreren axial nebeneinander liegenden Druckplatten 84 mindestens zwei Seitenregisteranschläge 86, 66 zugeordnet. Mindestens einer dieser beiden Seitenregisteranschläge 66, 86 kann direkt an der Einhängeleiste 19 der Druckplatten-Bereitstellungseinrichtung 12 oder auch separat in einem Bereich zwischen der Druckplatten-Bereitstellungseinrichtung 12 und dem Zylinder 1 angeordnet sein (Fig. 3).In a first embodiment, each of a plurality of axially adjacent pressure plates 84 at least two side register stops 86, 66 assigned. At least one of these two Side register stops 66, 86 can be directly on the Hanging rails 19 the Printing plate supply device 12 or also separately in an area between the Printing plate supply device 12 and the Cylinder 1 may be arranged (Fig. 3).

Im einfachsten Fall ist zusätzlich zu dem üblicherweise auf dem Zylinder 1 vorhandenen Seitenregisteranschlag 86 ein zweiter Seitenregisteranschlag 66 an der Einhängeleiste 19 angeordnet. Dieser Seitenregisteranschlag 66 ist in axialer Richtung des Zylinders 1 seitlich versetzt und feinjustierbar angeordnet.In the simplest case, in addition to that is usual side register stop 86 present on cylinder 1 a second side register stop 66 on the Hanging bar 19 arranged. This Side register stop 66 is in the axial direction of the Cylinder 1 laterally offset and finely adjustable arranged.

In einem zweiten Ausführungsbeispiel wird auf einen Seitenregisteranschlag 86 auf dem Zylinder 1 verzichtet. Die in dem Bereich zwischen Druckplatten-Bereitstellungseinrichtung 12 und Zylinder 1 angeordnete Seitenregistereinrichtung 67 besteht aus drei nacheinander angeordneten Seitenregisteranschlägen 68, 69, 71, die in axialer Richtung des Zylinders 1 zueinander stufenartig versetzt angeordnet sind (Fig.4). Diese Seitenregisteranschläge 68, 69, 71 sind beispielsweise jeweils mittels einer Gewindeschraube 91, 92, 93 und eines Linearlagers 94, 96, 97 feinjustierbar ausgeführt.In a second embodiment, a Side register stop 86 on the cylinder 1 omitted. The in the area between Printing plate supply device 12 and cylinder 1 arranged side register device 67 consists of three side register stops arranged one after the other 68, 69, 71 which are in the axial direction of the cylinder 1 are staggered with respect to each other (Fig. 4). These page register stops 68, 69, 71 are for example, each with a threaded screw 91, 92, 93 and a linear bearing 94, 96, 97 Finely adjustable.

In einem dritten und vierten Ausführungsbeispiel ist jeweils nur ein Seitenregisteranschlag 72, 74 in einem Lager 98, 99 verschiebbar angeordnet, wobei dieser in verschiedene, in axialer Richtung des Zylinders 1 zueinander versetzte Positionen bringbar ist.
Beispielsweise kann der Seitenregisteranschlag 72 an einem ortsfest angeordneten Arbeitszylinder 73 befestigt sein (Fig. 5). Ein Kolben dieses Arbeitszylinders 73 bewegt den Seitenregisteranschlag 72 in zwei Stellungen. Auch ist es möglich einen Seitenregisteranschlag 74 in axialer Richtung des Zylinders 1 stufenlos verstellbar anzuordnen. Dazu kann der Seitenregisteranschlag 74 beispielsweise mittels einer von einem Elektromotor 76 angetriebenen Gewindespindel 77 positioniert werden (Fig. 6).
In a third and fourth exemplary embodiment, only one side register stop 72, 74 is displaceably arranged in a bearing 98, 99, wherein this can be brought into different positions offset from one another in the axial direction of the cylinder 1.
For example, the side register stop 72 can be attached to a stationary working cylinder 73 (FIG. 5). A piston of this working cylinder 73 moves the side register stop 72 in two positions. It is also possible to arrange a side register stop 74 in a continuously adjustable manner in the axial direction of the cylinder 1. For this purpose, the side register stop 74 can be positioned, for example, by means of a threaded spindle 77 driven by an electric motor 76 (FIG. 6).

Die Druckplatte 84 wird folgendermaßen an den Seitenregisteranschlägen 66-69, 71, 72, 74 axial ausgerichtet:
Sind mehrere Seitenregisteranschläge 66-69, 71, 86 wie im ersten und zweiten Ausführungsbeispiel hintereinander angeordnet, fährt die Greif- und Andrückeinrichtung 43 mit der ergriffenen Druckplatte 84 in Richtung "B" eine vorgewählte, dem gewünschten Seitenregisteranschlag 66-69, 71, 86 zugeordnete Position an.
The pressure plate 84 is axially aligned as follows at the side register stops 66-69, 71, 72, 74:
If a plurality of side register stops 66-69, 71, 86 are arranged one behind the other as in the first and second exemplary embodiments, the gripping and pressing device 43 moves with the gripped pressure plate 84 in the direction “B” a preselected one which is assigned to the desired side register stop 66-69, 71, 86 Position.

Bei verstellbarem Seitenregisteranschlag 72, 74 wird der Seitenregisteranschlag 72, 74 beispielsweise mittels des Arbeitszylinders 73 oder Elektromotors 76 in die vorgewählte Position gebracht. Die Greifereinheit 44 fährt mit der ergriffenen Druckplatte 84 in eine dem Seitenregisteranschlag zugeordnete Position in Richtung "A".With adjustable side register stop 72, 74 the Side register stop 72, 74 for example by means of Working cylinder 73 or electric motor 76 in the selected position brought. The gripper unit 44 moves with the gripped pressure plate 84 in a Position assigned to the side register stop in the direction "A".

Der Positionierantrieb 53 bewegt die Greifereinheit 44 in axialer Richtung bis die Druckplatte 84 mit ihrer Einhängeabkantung 3 gegen den jeweiligen Seitenregisteranschlag 66-69, 71, 72, 74, 86 gedrückt wird. Anschließend wird der Positionierantrieb 53 abgestellt. Dies kann beispielsweise durch eine Begrenzung der Stromaufnahme eines elektrisch angetriebenen Positionierantriebes 53 erfolgen oder es kann auch ein Sensor im Bereich des Kraftflusses zur Ermittlung der Anpreßkraft angeordnet sein. Ebenso ist es möglich aus der Beziehung zwischen zurückgelegtem Weg und dafür benötigter Zeit der Druckplatte 84 oder des Positionierantriebes 53 ein Kriterium für die Abschaltung zu ermitteln.The positioning drive 53 moves the gripper unit 44 in the axial direction until the pressure plate 84 with her Insert folding 3 against the respective Side register stop 66-69, 71, 72, 74, 86 pressed becomes. Then the positioning drive 53 switched off. This can be done, for example, by a Limiting the current draw of an electric driven positioning drive 53 or it can also be a sensor in the area of the power flow Determination of the contact pressure may be arranged. Likewise it is possible from the relationship between the distance traveled and the required time of the pressure plate 84 or the Positioning drive 53 a criterion for Determine shutdown.

Anstelle der Seitenregisteranschläge 66-69, 71, 72, 74, 86 können auch Sensoren zur Detektion der Position der Druckplatte 84 vorgesehen sein. Insbesondere eignet sich ein CCD-Sensor zur Positionsbestimmung der Druckplatte 84 und zur Steuerung des Positionierantriebes 53 der Greifereinheit 44. Dieser CCD-Sensor kann vorteilhaft von der Seitenkante der Druckplatte 84 teilweise überdeckend und bezüglich des Seitengestells ortsfest befestigt werden. Dabei ist der CCD-Sensor bezüglich einer bestimmten Position des Zylinders 1 zugeordnet ausgerichtet.Instead of the side register stops 66-69, 71, 72, 74, 86 can also sensors for detecting the position of the Pressure plate 84 may be provided. It is particularly suitable a CCD sensor for determining the position of the printing plate 84 and to control the positioning drive 53 Gripper unit 44. This CCD sensor can be advantageous partially from the side edge of the pressure plate 84 covering and stationary with respect to the side frame be attached. The CCD sensor is related to one assigned specific position of the cylinder 1 aligned.

Nachdem die Greifereinheit die Druckplatte 84 ergriffen hat, wird mittels des CCD-Sensors die Ausgangsposition der Druckplatte 84 ermittelt. Von dieser Ausgangsposition ausgehend wird der Positionierantrieb 53 betätigt, bis die Druckplatte 84 die gewünschte Position bezüglich des CCD-Sensors und damit bezüglich des Zylinders 1 erreicht hat. Der Positionierantrieb 53 wird nun abgeschaltet und die Druckplatte 84 wird in Richtung Zylinder 1 transportiert.After the gripper unit gripped the pressure plate 84 has the starting position using the CCD sensor the pressure plate 84 determined. Of this The positioning drive starts from the starting position 53 operated until the pressure plate 84 the desired Position with respect to the CCD sensor and therefore with respect of cylinder 1 has reached. The positioning drive 53 is now switched off and the pressure plate 84 is in Transported towards cylinder 1.

Eine weiteres, nicht dargestelltes Ausführungsbeispiel weist zwei Sensoren zur Positionserkennung an der Greif- und Andrückeinrichtung 43 und einen Referenzpunkt auf dem Zylinder 1 auf. Der erste, eine Seitenkante der Druckplatte 84 detektierende Sensor ist an der Traverse 39 im Bereich einer Seitenkante der Druckplatte 84 befestigt. Der zweite, den Referenzpunkt detektierende Sensor ist mit der Greifereinheit 44 bewegbar im Bereich des auf dem Zylinder 1 befindlichen Referenzpunkt angeordnet.
Die Greifereinheit 44 mit dem zweiten Sensor wird solange in axialer Richtung bewegt, bis der Referenzpunkt des Zylinders 1 erreicht ist. Diese Referenzposition wird von der Steuerung des Positionierantriebes 53 gespeichert. Wurde während dieser Bewegung von dem ersten Sensor die Position der Seitenkante der Druckplatte 84 erkannt, wird auch diese Position gespeichert, ansonsten wird die Druckplatte 84 solange weiter axial verschoben, bis die Seitenkante der Druckplatte 84 detektiert wurde. Aufgrund dieser beiden Positionswerte und einer vorgewählten Position, in der die Druckplatte 84 montiert werden soll, errechnet die Steuerung des Positionierantriebes 53 eine Wegstrecke, um die die Druckplatte 84 noch zu verschieben ist. Der Positionierantrieb 53 führt anschließend die notwendige axiale Bewegung der Druckplatte 84 aus.
Another embodiment, not shown, has two sensors for position detection on the gripping and pressing device 43 and a reference point on the cylinder 1. The first sensor, which detects a side edge of the pressure plate 84, is fastened to the cross member 39 in the region of a side edge of the pressure plate 84. The second sensor, which detects the reference point, is arranged to be movable with the gripper unit 44 in the region of the reference point located on the cylinder 1.
The gripper unit 44 with the second sensor is moved in the axial direction until the reference point of the cylinder 1 is reached. This reference position is stored by the control of the positioning drive 53. If the position of the side edge of the pressure plate 84 was recognized by the first sensor during this movement, this position is also stored, otherwise the pressure plate 84 is shifted further axially until the side edge of the pressure plate 84 has been detected. On the basis of these two position values and a preselected position in which the pressure plate 84 is to be mounted, the control of the positioning drive 53 calculates a distance by which the pressure plate 84 can still be displaced. The positioning drive 53 then performs the necessary axial movement of the pressure plate 84.

Schließlich ist in einem weiteren, nicht dargestellten Ausführungsbeispiel auf dem Zylinder 1 der Referenzpunkt als Anschlag für eine Seitenkante der Druckplatte 84 ausgebildet. Die in der Einhängeleiste 63 des Zylinders 1 eingehängte Druckplatte 84 wird mit ihrer Einhängeabkantung 3 von Greifereinrichtung 44 gehalten mittels des Positionierantriebes 53 in axialer Richtung gegen den Anschlag geführt. Stößt die Einhängeabkantung 3 gegen den Anschlag schaltet der Positionierantrieb 53 ab. Diese Abschaltung kann beispielsweise mittels Strombegrenzer oder durch Auswertung von Impulsfolgen eines Inkrementalgebers erfolgen. Von dieser Referenzposition ausgehend, wird die Druckplatte 84 mittels des Positionierantriebes 53 an die vorgewählte Position des Zylinders 1 in axialer Richtung positioniert.Finally, another is not shown Embodiment on the cylinder 1 the reference point as a stop for a side edge of the pressure plate 84 educated. The in the hanging bar 63 of the cylinder 1 suspended pressure plate 84 with her Hook-in bend 3 held by gripper device 44 by means of the positioning drive 53 in the axial direction led against the attack. Bumps the hooked edge 3 against the stop, the positioning drive 53 from. This shutdown can be done, for example Current limiter or by evaluating pulse trains an incremental encoder. Of this Starting from the reference position, the pressure plate 84 by means of the positioning drive 53 to the preselected one Position of the cylinder 1 in the axial direction positioned.

Die weitere Montage kann beispielsweise entsprechend dem in der DE 44 24 931 A1 beschriebenen Verfahren erfolgen.The further assembly can, for example, according to the described in DE 44 24 931 A1.

Sind auf einem Zylinder in axialer Richtung mehrere Druckplatten in zugeordneten Zylinderabschnitten nebeneinander montierbar, so weist mindestens ein Zylinderabschnitt mehrere nebeneinander liegende wählbare Sollpositionen auf. Jedem Zylinderabschnitt, dem eine Druckplatte zugeordnet ist, sind mehrere nebeneinanderliegende wählbare Sollpositionen zugeordnet. Durch die Auswahl des Zylinderabschnittes wird also die "Grobposition" der Platte festgelegt. Innerhalb des Zylinderabschnitts wird durch Auswahl einer Sollposition aus mehreren in axialer Richtung nebeneinanderliegenden Sollpositionen die "Feinposition" festgelegt. Are several on one cylinder in the axial direction Pressure plates in assigned cylinder sections mountable next to each other, at least one Cylinder section several lying side by side selectable target positions. Every cylinder section, to which a printing plate is assigned are several adjacent selectable target positions assigned. By selecting the cylinder section the "rough position" of the plate is determined. Within the cylinder section is by selection a target position from several in the axial direction adjacent target positions the "fine position" fixed.

BezugszeichenlisteReference list

11
Zylindercylinder
22nd
Druckplatte (biegbarer, bogenförmiger Gegenstand)Pressure plate (bendable, arched object)
33rd
Einhängeabkantung, vordere (2)Hook-in bend, front (2)
44th
Einhängeabkantung, hintere (2)Insert folding, rear (2)
55
--
66
Schenkelleg
77
Schenkelleg
88th
Seitengestell, rechtesRight side frame
99
Seitengestell, linkesSide frame, left
1010th
--
1111
FarbwerkschutzInking unit protection
1212th
Druckplatten-Bereitstellungseinrichtung, erstePrinting plate preparation device, first
1313
Wand, obere (12)Wall, upper (12)
1414
Wand, untere (12)Wall lower (12)
1515
--
1616
Schacht (12)Manhole (12)
1717th
Ende, plattenzylindernah (13)End, close to the plate cylinder (13)
1818th
Drehachse (1)Axis of rotation (1)
1919th
Einhängeleiste (12)Hanging rails (12)
2020th
--
2121
Tangente (1, 12)Tangent (1, 12)
2222
Zylindermantelfläche (1)Cylinder surface (1)
2323
Druckplatten-Bereitstellungseinrichtung, zweitePrinting plate preparation device, second
2424th
Ende, plattenzylindernah (23)End, close to the plate cylinder (23)
2525th
--
2626
Einhängeleiste (23) Hanging rails (23)
2727
Linearantrieb, rechterLinear drive, right
2828
Linearantrieb, linkerLinear drive, left
2929
Gewindespindel, rechte (27)Lead screw, right (27)
3030th
--
3131
Gewindespindel, linke (28)Left-hand lead screw (28)
3232
BockBuck
3333
BockBuck
3434
BockBuck
3535
--
3636
BockBuck
3737
Riemenbelt
3838
Antriebdrive
3939
Traversetraverse
4040
--
4141
TransportebeneTransport level
4242
Gewindemutter (39)Threaded nut (39)
4343
Greif- und AndrückeinrichtungGripping and pressing device
4444
Greifereinheit (43)Gripper unit (43)
4545
--
4646
Andrückrolle (43)Pressure roller (43)
4747
Saugleisten (44)Suction strips (44)
4848
Führungsleiste (44)Guide bar (44)
4949
Druckfeder (44)Compression spring (44)
5050
--
5151
Anschlag (44)Stop (44)
5252
Führungsleiste (44)Guide bar (44)
5353
PositionierantriebPositioning drive
5454
Pneumatikzylinder (47)Pneumatic cylinder (47)
5555
Gewindespindel (53) Lead screw (53)
5656
Pneumatikzylinder (46)Pneumatic cylinder (46)
5757
Verschluß (1)Closure (1)
5858
Verschluß (1)Closure (1)
5959
Verschluß (1)Closure (1)
6060
--
6161
Verschluß (1)Closure (1)
6262
Zylindergrube (1)Cylinder pit (1)
6363
Einhängeleiste, vordere (1)Hanging rails, front (1)
6464
--
6565
--
6666
Seitenregisteranschlag, zweiterSide register stop, second
6767
SeitenregistereinrichtungPage register facility
6868
Seitenregisteranschlag (67)Side register stop (67)
6969
Seitenregisteranschlag (67)Side register stop (67)
7070
--
7171
Seitenregisteranschlag (67)Side register stop (67)
7272
SeitenregisteranschlagSide register stop
7373
ArbeitszylinderWorking cylinder
7474
SeitenregisteranschlagSide register stop
7575
--
7676
ElektromotorElectric motor
7777
GewindespindelThreaded spindle
7878
--
7979
--
8080
--
8181
Lot (18, 29; 31)Lot (18, 29; 31)
8484
Druckplatte, neu, erste Pressure plate, new, first
8585
--
8686
SeitenregisteranschlagSide register stop
8787
Schutzprotection
8888
Druckplatte, neu, zweitePrinting plate, new, second
8989
--
9090
--
9191
GewindeschraubeThreaded screw
9292
GewindeschraubeThreaded screw
9393
GewindeschraubeThreaded screw
9494
LinearlagerLinear bearings
9595
--
9696
LinearlagerLinear bearings
9797
LinearlagerLinear bearings
9898
Lagercamp
9999
Lagercamp
AA
Richtungdirection
BB
Richtungdirection
CC.
Richtungdirection
DD
Richtungdirection
PP
ProduktionsrichtungProduction direction
ss
Spaltgap

Claims (5)

  1. Apparatus for the axial positioning of printing plates (84) during mounting on a cylinder (1) of a rotary printing machine by means of transport (27; 28; 43), characterized in that means (53; 66-69; 71-74; 76; 77; 86) are provided for positioning the printing plate (84) on the cylinder (1) in a position, preselectable from a plurality of positions located axially next to one another, within a cylinder portion assigned to the printing plate (84), and in that a printing plate (84) assigned to a specific cylinder portion is assigned a plurality of stops (66 to 69) or a plurality of sensors.
  2. Apparatus according to Claim 1, characterized in that the stops or sensors are arranged on the cylinder (1).
  3. Apparatus according to Claim 1, characterized in that the stops (66-69) or sensors are arranged outside the cylinder (1).
  4. Apparatus according to Claim 1, characterized in that a CCD sensor is provided as sensors.
  5. Apparatus according to Claim 1, characterized in that a positioning drive (53) is provided for moving the printing plate (84) in the axial direction, and in that this positioning drive (53) has means for detecting its position.
EP97107854A 1996-05-24 1997-05-14 Apparatus for axially positioning of a printing plate Expired - Lifetime EP0808714B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620997A DE19620997C2 (en) 1996-05-24 1996-05-24 Method and device for axially positioning a printing plate
DE19620997 1996-05-24

Publications (3)

Publication Number Publication Date
EP0808714A2 EP0808714A2 (en) 1997-11-26
EP0808714A3 EP0808714A3 (en) 1998-03-04
EP0808714B1 true EP0808714B1 (en) 2000-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107854A Expired - Lifetime EP0808714B1 (en) 1996-05-24 1997-05-14 Apparatus for axially positioning of a printing plate

Country Status (4)

Country Link
US (1) US5806431A (en)
EP (1) EP0808714B1 (en)
JP (1) JPH1044374A (en)
DE (2) DE19620997C2 (en)

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US7856925B2 (en) 2007-07-30 2010-12-28 Koenig & Bauer Aktiengesellschaft Method for the arrangement of printing blocks on a plate cylinder of a printing machine

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US7856925B2 (en) 2007-07-30 2010-12-28 Koenig & Bauer Aktiengesellschaft Method for the arrangement of printing blocks on a plate cylinder of a printing machine

Also Published As

Publication number Publication date
DE19620997A1 (en) 1997-11-27
EP0808714A3 (en) 1998-03-04
US5806431A (en) 1998-09-15
EP0808714A2 (en) 1997-11-26
DE19620997C2 (en) 1998-03-26
DE59702179D1 (en) 2000-09-21
JPH1044374A (en) 1998-02-17

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