EP1201430A2 - Device for feeding printing plates to the plate cylinder of a printing press - Google Patents

Device for feeding printing plates to the plate cylinder of a printing press Download PDF

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Publication number
EP1201430A2
EP1201430A2 EP01122531A EP01122531A EP1201430A2 EP 1201430 A2 EP1201430 A2 EP 1201430A2 EP 01122531 A EP01122531 A EP 01122531A EP 01122531 A EP01122531 A EP 01122531A EP 1201430 A2 EP1201430 A2 EP 1201430A2
Authority
EP
European Patent Office
Prior art keywords
plate
plate cylinder
printing
feeding
front edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01122531A
Other languages
German (de)
French (fr)
Other versions
EP1201430A3 (en
EP1201430B1 (en
Inventor
Andreas Techert
Jan Teller
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
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1201430A2 publication Critical patent/EP1201430A2/en
Publication of EP1201430A3 publication Critical patent/EP1201430A3/en
Application granted granted Critical
Publication of EP1201430B1 publication Critical patent/EP1201430B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • 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
    • B41P2227/62—Devices for introducing printing plates

Definitions

  • the invention relates to a device for feeding printing plates onto the plate cylinder of printing presses, the plate cylinder being arranged axially to the plate cylinder Has plate cylinder channel in which a tensioning rail for receiving the front edge of the Pressure plate is arranged.
  • a device is known through which the printing plates in the open detection area of a clamping rail of a plate cylinder assigned to the start of printing can be introduced. In doing so, it is moved to those moved to a certain angular position Plate cylinder in such a way on an insertion rail extending over the format width the outer circumference of the plate cylinder in the area of the start of printing that the front edge the pressure plate directly into the via the insertion surface formed by the insertion rail Detection area of the pressure start clamping rail can be introduced.
  • the outer circumference the plate cylinder thus forms a funnel-shaped area for the with the insertion rail Printing plate leading edge.
  • the object of the invention is to develop a device by which the Pressure plate from an exact pre-positioning in the open mouth of the pressure plate clamping rail can be introduced.
  • the invention has the advantage that only a small amount for the exact insertion of the printing plate mechanical effort is required.
  • the way from prepositioning to the clamping point is in short, which contributes to the stability of the process.
  • the device for feeding printing plates consists of one Plate cylinder 1 with a plate cylinder channel 3.
  • plate cylinder channel 3 there are one Front clamping rail 31 for grasping the front edge of a pressure plate 22 and a rear one Clamping rail 32 arranged for grasping the rear edge of a pressure plate 22.
  • the structure the front tensioning rail 31 and the rear tensioning rail 32 are generally known and will be on not explained in more detail here.
  • a lay-in shaft 4 which is rotatable about its axis is arranged parallel to the plate cylinder channel. This extends over the entire format width and has a segment cutout 41 Mistake.
  • the segment cutout 41 serves to receive the front edge of the new printing plate 22 and is provided with pre-fitting pins 42.
  • the exemplary embodiment is described using an insertion shaft 4. But it is also possible to use another rod-shaped element and on this a suitable receptacle to be arranged for the front edge of the new pressure plate 22.
  • the plate cylinder 1 is also assigned a storage roller 6, which is the guide or the storage the used printing plate.
  • a guide plate 71 is assigned, which with a guide plate 81 the discharge shaft 7 for used printing plates.
  • the feed shaft 8 for new printing plates 22 is through the Guide plates 81 and 82 formed.
  • the new printing plate 22 is fed through the feed shaft 8 introduced and stored in the segment cutout 41 on the pre-fit pins 42.
  • the new pressure plate 22 is clamped on its rear edge.
  • the new pressure plate 22 can be pressed lightly against the pre-fitting pins 42 so that they fit in this position is under tension.
  • Another variant of the invention is the new one Pressure plate 22 is not under tension, but is due to its weight on the pre-fit pins 42 on.
  • the rear clamping rail 32 is now opened.
  • the drives Plate cylinder 1 in a position in which the protruding from the rear clamping rail 32
  • the trailing edge of the used pressure plate 21 comes to rest on the storage roller 6.
  • the front tensioning rail 31 is opened.
  • the insertion shaft is rotated in the direction of the arrow until approximately the position shown in FIG. 2 is reached.
  • the new pressure plate 22 jumps out of the segment cutout due to the pretension 41 and slides into the open front tensioning rail 31. If there is no pretension, due to its weight, the new pressure plate 22 slips into the front tensioning rail 31.
  • the new printing plate 22 is then placed on the plate cylinder 1 in the known manner reared.

Landscapes

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

Abstract

The plate-cylinder (1) has a duct (3) axially positioned in relation to the plate cylinder. The duct contains a clamping rail (31) for holding the front edge of the printing plate (22). The duct has a bar-shaped element in the form of a feeder shaft (4) rotating on its axis and extending parallel with the plate cylinder duct. The holder for the front edge of the printing plate extends the entire width of the format and consists o f a segment cut out (41) from the feeder shaft.

Description

Die Erfindung betrifft eine Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen, wobei der Plattenzylinder einen axial zum Plattenzylinder angeordneten Plattenzylinder-Kanal aufweist, in dem eine Spannschiene zur Aufnahme der Vorderkante der Druckplatte angeordnet ist.The invention relates to a device for feeding printing plates onto the plate cylinder of printing presses, the plate cylinder being arranged axially to the plate cylinder Has plate cylinder channel in which a tensioning rail for receiving the front edge of the Pressure plate is arranged.

Aus der DE 42 15 969 A1 ist eine Vorrichtung bekannt, durch welche die Druckplatten in den geöffneten Erfassungsbereich einer dem Druckanfang zugeordneten Spannschiene eines Plattenzylinders eingeführt werden können. Dabei wird an den in eine bestimmte Winkelposition verfahrenen Plattenzylinder eine sich über die Formatbreite erstreckende Einführschiene derartig an den Außenumfang des Plattenzylinders im Bereich des Druckanfanges angestellt, dass die Vorderkante der Druckplatte über die durch die Einführschiene gebildete Einführfläche direkt in den Erfassungsbereich der Druckanfang-Spannschiene eingeführt werden kann. Der Außenumfang des Plattenzylinders bildet somit mit der Einführschiene einen trichterförrnigen Bereich für die Druckplattenvorderkante.From DE 42 15 969 A1 a device is known through which the printing plates in the open detection area of a clamping rail of a plate cylinder assigned to the start of printing can be introduced. In doing so, it is moved to those moved to a certain angular position Plate cylinder in such a way on an insertion rail extending over the format width the outer circumference of the plate cylinder in the area of the start of printing that the front edge the pressure plate directly into the via the insertion surface formed by the insertion rail Detection area of the pressure start clamping rail can be introduced. The outer circumference the plate cylinder thus forms a funnel-shaped area for the with the insertion rail Printing plate leading edge.

Diese Lösung birgt die Gefahr in sich, dass die Druckplatte schief in das geöffnete Maul der Druckplatten-Spannschiene eingeführt werden könnte. Einer der Gründe dafür ist, dass mit dieser Vorrichtung keine Vorpositionierung der Druckplatte erfolgen kann. Damit kann das exakte Einführen in die Druckplatten-Spannschiene nicht gewährleistet werden.This solution harbors the risk that the pressure plate slanted into the open mouth of the Pressure plate clamping rail could be introduced. One of the reasons is that with this Device no prepositioning of the printing plate can take place. So that can be exact Insertion into the pressure plate clamping rail cannot be guaranteed.

Die Aufgabe der Erfindung besteht darin, eine Vorrichtung zu entwickeln, durch welche die Druckplatte aus einer exakten Vorpositionierung lagegenau in das geöffnete Maul der Druckplatten-Spannschiene eingeführt werden kann.The object of the invention is to develop a device by which the Pressure plate from an exact pre-positioning in the open mouth of the pressure plate clamping rail can be introduced.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des 1. Anspruchs gelöst. Die Unteransprüche zeigen eine bevorzugte Ausführungsform der Erfindung.According to the invention, the object is achieved by the features of claim 1. The subclaims show a preferred embodiment of the invention.

Die Erfindung hat den Vorteil, dass für das exakte Einführen der Druckplatte nur ein geringer mechanischer Aufwand erforderlich ist. Der Weg von der Vorpositionierung zur Spannstelle ist kurz, was zur Stabilität des Vorgangs beiträgt.The invention has the advantage that only a small amount for the exact insertion of the printing plate mechanical effort is required. The way from prepositioning to the clamping point is in short, which contributes to the stability of the process.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Die dazugehörigen Zeichnungen haben folgende Bedeutung:

Figur 1
Darstellung der erfindungsgemäßen Einrichtung mit bereitgestellter neuer Druckplatte
Figur 2
Darstellung der erfindungsgemäßen Einrichtung in der Phase des Einführens der neuen Druckplatte
The invention will be explained in more detail using an exemplary embodiment. The associated drawings have the following meaning:
Figure 1
Representation of the device according to the invention with a new printing plate provided
Figure 2
Representation of the device according to the invention in the phase of introducing the new printing plate

Wie aus der Figur 1 ersichtlich, besteht die Vorrichtung zum Zuführen von Druckplatten aus einem Plattenzylinder 1 mit einem Plattenzylinder-Kanal 3. Im Plattenzylinder-Kanal 3 sind eine vordere Spannschiene 31 zum Erfassen der Vorderkante einer Druckplatte 22 und eine hintere Spannschiene 32 zum Erfassen der Hinterkante einer Druckplatte 22 angeordnet. Der Aufbau der vorderen Spannschiene 31und hinteren Spannschiene 32 ist allgemein bekannt und wird an dieser Stelle nicht näher erläutert.As can be seen from FIG. 1, the device for feeding printing plates consists of one Plate cylinder 1 with a plate cylinder channel 3. In plate cylinder channel 3 there are one Front clamping rail 31 for grasping the front edge of a pressure plate 22 and a rear one Clamping rail 32 arranged for grasping the rear edge of a pressure plate 22. The structure the front tensioning rail 31 and the rear tensioning rail 32 are generally known and will be on not explained in more detail here.

Parallel zum Plattenzylinder-Kanal ist eine um ihre Achse drehbare Einlegewelle 4 angeordnet. Diese erstreckt sich über die gesamte Formatbreite und ist mit einem Segmentausschnitt 41 versehen. Der Segmentausschnitt 41 dient zur Aufnahme der Vorderkante der neuen Druckplatte 22 und ist mit Vorpass-Stiften 42 versehen.A lay-in shaft 4 which is rotatable about its axis is arranged parallel to the plate cylinder channel. This extends over the entire format width and has a segment cutout 41 Mistake. The segment cutout 41 serves to receive the front edge of the new printing plate 22 and is provided with pre-fitting pins 42.

Das Ausführungsbeispiel wird an Hand einer Einlegewelle 4 beschrieben. Es ist aber auch möglich, ein anderes stabförmiges Element zu verwenden und an diesem eine geeignete Aufnahme für die Vorderkante der neuen Druckplatte 22 anzuordnen.The exemplary embodiment is described using an insertion shaft 4. But it is also possible to use another rod-shaped element and on this a suitable receptacle to be arranged for the front edge of the new pressure plate 22.

Dem Plattenzylinder 1 ist weiterhin eine Ablagerolle 6 zugeordnet, die der Führung bzw. der Ablage der gebrauchten Druckplatte dient. Zu diesem Zwecke ist dem Zu- und Abführmechanismus ein Führungsblech 71 zugeordnet, das mit einem Führungsblech 81 den Abführschacht 7 für gebrauchte Druckplatten bildet. Der Zuführschacht 8 für neue Druckplatten 22 wird durch die Führungsbleche 81 und 82 gebildet.The plate cylinder 1 is also assigned a storage roller 6, which is the guide or the storage the used printing plate. For this purpose, the feed and discharge mechanism a guide plate 71 is assigned, which with a guide plate 81 the discharge shaft 7 for used printing plates. The feed shaft 8 for new printing plates 22 is through the Guide plates 81 and 82 formed.

Zur Wirkungsweise der erfindungsgemäßen Einrichtung:Operation of the device according to the invention:

Bei anstehendem Druckplatten-Wechsel wird die neue Druckplatte 22 durch den Zuführschacht 8 eingeführt und im Segmentausschnitt 41 auf den Vorpass-Stiften 42 abgelegt. In den Figuren nicht dargestellt ist, dass die neue Druckplatte 22 an ihrer Hinterkante geklemmt wird. Damit kann die neue Druckplatte 22 leicht gegen die Vorpass-Stifte 42 gedrückt werden, so dass sie in dieser Lage unter Vorspannung steht. In einer anderen Variante der Erfindung steht die neue Druckplatte 22 nicht unter Vorspannung, sondern liegt infolge ihres Gewichtes an den Vorpass-Stiften 42 an.When there is a change of printing plate, the new printing plate 22 is fed through the feed shaft 8 introduced and stored in the segment cutout 41 on the pre-fit pins 42. In the figures is not shown that the new pressure plate 22 is clamped on its rear edge. In order to the new pressure plate 22 can be pressed lightly against the pre-fitting pins 42 so that they fit in this position is under tension. Another variant of the invention is the new one Pressure plate 22 is not under tension, but is due to its weight on the pre-fit pins 42 on.

Zum Druckplatten-Wechsel wird nun die hintere Spannschiene 32 geöffnet. Dabei fährt der Plattenzylinder 1 in eine Stellung, bei der die aus der hintere Spannschiene 32 herausspringende Hinterkante der gebrauchten Druckplatte 21 auf der Ablagerolle 6 zur Ablage kommt. Durch die Drehung des Plattenzylinders 1 entgegen seiner Betriebs-Drehrichtung wird die gebrauchte Druckplatte in den Abführschacht 7 für gebrauchte Druckplatten eingeschoben und kann aus diesen entnommen werden. Die vordere Spannschiene 31 wird geöffnet.To change the printing plate, the rear clamping rail 32 is now opened. The drives Plate cylinder 1 in a position in which the protruding from the rear clamping rail 32 The trailing edge of the used pressure plate 21 comes to rest on the storage roller 6. Through the Rotation of the plate cylinder 1 against its operating direction of rotation becomes the used one Pressure plate inserted into the discharge shaft 7 for used pressure plates and can be removed these are taken. The front tensioning rail 31 is opened.

Danach wird die Einlegewelle in Pfeilrichtung verdreht, bis etwa die in Figur 2 dargestellte Lage erreicht ist. Dabei springt die neue Druckplatte 22 durch die Vorspannung aus dem Segmentausschnitt 41 und gleitet in die geöffnete vordere Spannschiene 31. Ist keine Vorspannung vorhanden, rutscht die neue Druckplatte 22 infolge ihres Gewichtes in die vordere Spannschiene 31.Then the insertion shaft is rotated in the direction of the arrow until approximately the position shown in FIG. 2 is reached. The new pressure plate 22 jumps out of the segment cutout due to the pretension 41 and slides into the open front tensioning rail 31. If there is no pretension, due to its weight, the new pressure plate 22 slips into the front tensioning rail 31.

Anschließend wird die neue Druckplatte 22 auf die bekannte Weise auf den Plattenzylinder 1 aufgezogen. The new printing plate 22 is then placed on the plate cylinder 1 in the known manner reared.

Aufstellung der verwendeten BezugszeichenList of the reference symbols used

11
Plattenzylinderplate cylinder
2222
Druckplatte (neu)Pressure plate (new)
33
Plattenzylinder-KanalPlate cylinder channel
3131
Vordere SpannschieneFront tensioning rail
3232
Hintere SpannschieneRear tensioning rail
44
Einlegewelleinlay wave
4141
Segmentausschnittsegment cutout
4242
Vorpass-StiftePre-registration pins
66
Ablagerollestorage role
77
Abführschachtremoval chute
7171
Führungsblechguide plate
88th
Zuführschacht für neue DruckplatteFeed chute for new printing plate
8181
Führungsblechguide plate
8282
Führungsblechguide plate

Claims (3)

Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen,
wobei der Plattenzylinder (1) einen axial zum Plattenzylinder(1) angeordneten Plattenzylinder-Kanal (3) aufweist, in dem eine Spannschiene (31) zur Aufnahme der Vorderkante der Druckplatte (22) angeordnet ist,
dadurch gekennzeichnet, dass
dem Plattenzylinder-Kanal (3) ein um seine Achse drehbares, stabförmiges Element zugeordnet ist, das sich parallel zum Plattenzylinder-Kanal (3) ausdehnt und mit einer sich über die gesamte Formatbreite erstreckende Aufnahme für die Vorderkante der Druckplatte (22) versehen ist.Device for feeding printing plates onto the plate cylinders of printing machines,
wherein the plate cylinder (1) has a plate cylinder channel (3) arranged axially to the plate cylinder (1), in which a tensioning rail (31) for receiving the front edge of the pressure plate (22) is arranged,
characterized in that
The plate cylinder channel (3) is assigned a rod-shaped element which can be rotated about its axis and which extends parallel to the plate cylinder channel (3) and is provided with a receptacle for the front edge of the printing plate (22) which extends over the entire format width. Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen nach Anspruch 1, dadurch gekennzeichnet, dass als stabförmiges Element eine Einlegewelle (4) vorgesehen ist.Device for feeding printing plates onto the plate cylinder of printing machines according to claim 1, characterized in that an insertion shaft (4) is provided as the rod-shaped element. Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen nach Anspruch 1, dadurch gekennzeichnet, dass als Aufnahme für die Druckplatte (22) ein Segmentausschnitt (41) in der Einlegewelle (4) vorgesehen ist.Device for feeding printing plates to the plate cylinder of printing machines according to claim 1, characterized in that a segment cutout (41) is provided in the insertion shaft (4) as a receptacle for the printing plate (22).
EP01122531A 2000-10-25 2001-09-24 Device for feeding printing plates to the plate cylinder of a printing press Expired - Lifetime EP1201430B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10052773A DE10052773B4 (en) 2000-10-25 2000-10-25 Apparatus for feeding a printing plate onto a plate cylinder of a printing machine
DE10052773 2000-10-25

Publications (3)

Publication Number Publication Date
EP1201430A2 true EP1201430A2 (en) 2002-05-02
EP1201430A3 EP1201430A3 (en) 2003-03-12
EP1201430B1 EP1201430B1 (en) 2006-04-26

Family

ID=7660938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122531A Expired - Lifetime EP1201430B1 (en) 2000-10-25 2001-09-24 Device for feeding printing plates to the plate cylinder of a printing press

Country Status (3)

Country Link
EP (1) EP1201430B1 (en)
AT (1) ATE324263T1 (en)
DE (2) DE10052773B4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021109488A1 (en) 2021-04-15 2022-10-20 Koenig & Bauer Ag Device for supplying printing plates and method for carrying out a plate change
DE102021122827A1 (en) 2021-09-03 2023-03-09 Koenig & Bauer Ag Apparatus and method for feeding printing plates to a plate cylinder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511478A (en) * 1993-11-18 1996-04-30 Man Roland Druckmaschinen Ag Apparatus for the automated changing of printing plates of a printing machine
US5526747A (en) * 1994-04-18 1996-06-18 Heidelberger Druckmaschinen Ag Device for replacing printing plates in rotary printing presses
US5709151A (en) * 1994-01-17 1998-01-20 Koenig & Bauer-Albert Aktiengesellschaft Device for mounting, dismounting and transporting curved objects that are easy to bend and have hanging up edges
US5715752A (en) * 1995-02-18 1998-02-10 Man Roland Druckmaschinen Ag Device for drawing a printing plate onto the plate cylinder of a printing machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61227056A (en) * 1985-03-30 1986-10-09 Toppan Moore Co Ltd Printing press with automatic form-replacing device
JPS62221541A (en) * 1986-03-25 1987-09-29 Mitsubishi Heavy Ind Ltd Automatic press plate installation device
DE3940795A1 (en) * 1989-12-09 1991-06-13 Koenig & Bauer Ag METHOD AND DEVICE FOR AUTOMATIC FEEDING OR REMOVING A PRINT PLATE
DE4215969C2 (en) * 1992-05-18 1994-10-13 Roland Man Druckmasch Device for feeding printing plates onto the plate cylinders of printing machines, in particular sheet-fed offset printing machines
JPH07148911A (en) * 1993-11-26 1995-06-13 Sakurai Graphic Syst:Kk Auxiliary device for setting press plate for printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511478A (en) * 1993-11-18 1996-04-30 Man Roland Druckmaschinen Ag Apparatus for the automated changing of printing plates of a printing machine
US5709151A (en) * 1994-01-17 1998-01-20 Koenig & Bauer-Albert Aktiengesellschaft Device for mounting, dismounting and transporting curved objects that are easy to bend and have hanging up edges
US5526747A (en) * 1994-04-18 1996-06-18 Heidelberger Druckmaschinen Ag Device for replacing printing plates in rotary printing presses
US5715752A (en) * 1995-02-18 1998-02-10 Man Roland Druckmaschinen Ag Device for drawing a printing plate onto the plate cylinder of a printing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021109488A1 (en) 2021-04-15 2022-10-20 Koenig & Bauer Ag Device for supplying printing plates and method for carrying out a plate change
DE102021122827A1 (en) 2021-09-03 2023-03-09 Koenig & Bauer Ag Apparatus and method for feeding printing plates to a plate cylinder

Also Published As

Publication number Publication date
DE50109609D1 (en) 2006-06-01
DE10052773B4 (en) 2005-02-17
DE10052773A1 (en) 2002-05-16
EP1201430A3 (en) 2003-03-12
EP1201430B1 (en) 2006-04-26
ATE324263T1 (en) 2006-05-15

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