EP1013467A2 - Printing plate for a rotating offset printer - Google Patents

Printing plate for a rotating offset printer Download PDF

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Publication number
EP1013467A2
EP1013467A2 EP99123969A EP99123969A EP1013467A2 EP 1013467 A2 EP1013467 A2 EP 1013467A2 EP 99123969 A EP99123969 A EP 99123969A EP 99123969 A EP99123969 A EP 99123969A EP 1013467 A2 EP1013467 A2 EP 1013467A2
Authority
EP
European Patent Office
Prior art keywords
plate
printing
predetermined breaking
breaking points
printing 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.)
Granted
Application number
EP99123969A
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German (de)
French (fr)
Other versions
EP1013467B1 (en
EP1013467A3 (en
Inventor
Robert Richard Murray
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.)
Goss International Americas LLC
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1013467A2 publication Critical patent/EP1013467A2/en
Publication of EP1013467A3 publication Critical patent/EP1013467A3/en
Application granted granted Critical
Publication of EP1013467B1 publication Critical patent/EP1013467B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41NPRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00Printing plates or foils; Materials therefor
    • B41N1/04Printing plates or foils; Materials therefor metallic
    • B41N1/08Printing plates or foils; Materials therefor metallic for lithographic printing

Definitions

  • the present invention relates to a printing plate in a rotary printing press, in particular an offset printing plate in a web-fed rotary printing press for the Newspaper printing, according to the preamble of claim 1.
  • a web is usually passed through in a web-fed rotary offset printing press led a variety of printing units in which they with a single or multi-colored Image is printed. This is often the case in magazine or newspaper printing Need one or more of the on the plate cylinders of the press arranged pressure plates to change, for. B. to go to the first page of a current Issue a newspaper to print the latest news or around the newspaper head change during a production run if the newspaper is in different areas appears with different names.
  • the printing press Before a new production run, however, the printing press must be set up and printing plates must be applied to the plate cylinders of the printing press.
  • conventional newspaper printing presses in which usually two, three, four or even more webs in a corresponding number of printing units at the same time are printed and the printing units each have at least two, but usually four or include more plate cylinders, with a large number of printing plates, u. U. to to hundred, worked in the right order, position and orientation (with respect to the top and bottom edge) mounted on the correct plate cylinder Need to become.
  • the prepress area which is usually the preparation of the layout of the Newspaper pages, the transmission of the images contained on the individual newspaper pages on a film and transferring the images from the film to the printing plate, the printing plates are handled individually, which means that for large Newspaper printing machines in which e.g. B. a hundred pages and more, enormous Prepress capacities and facilities must be available and the Preparing the printing plates requires a lot of time.
  • a shortening of the resulting time span between the completion of the Newspaper layouts and the start of printing can only be achieved by increasing prepress capacities and the number of machine operators who assemble the printing plates, can be achieved.
  • Another option is automatic Use plate changing systems, which are expensive and for those in compact Printing presses often do not have enough space.
  • an offset printing plate for a rotary printing press in particular to create a newspaper printing press, which reduces the required prepress capacities and those for applying the printing plates to the Plate cylinder of a newspaper printing machine allows the time required.
  • Another object of the invention is to provide a method for producing a to create such an offset printing plate for a newspaper printing press.
  • the printing plate according to the invention for a rotary printing press comprises a plate base body or a plate base and a plurality of them disposed Predetermined breaking points, which define the edges or edges of partial plates, which the wear respective print images assigned to a newspaper page.
  • the inventive method for producing an offset printing plate comprises the following steps: Provision of a plate base and creation of predetermined breaking points in the plate base, which define the edges or margins of partial plates, the one to wear printing image.
  • the method according to the invention for producing an offset printing plate includes: provision of at least two partial plates and joining the partial plates together so that they have a single pressure plate Form predetermined breaking points, which are in one piece on the plate cylinder Offset printing machine can be applied.
  • the rotary offset printing machine shown in Fig. 1 in particular for the Newspaper printing, comprises a plurality of printing units 4a, 4b, 4c, 4d and 4e with each at least one plate cylinder 6 and at least one blanket cylinder 8 for Printing a web 2 with a single or multi-color image.
  • Fig. 1 there is only one Lane 2 shown.
  • the rotary offset printing machine cannot be shown in FIG. 1 further printing units for printing a plurality of webs 2, z. B. two, five or eight lanes 2.
  • each of the plate cylinders 6 is formed to be a according to the invention, consisting of a plurality of partial plates 10A, 10B, 10C, 10D Offset printing plate 10 can accommodate.
  • An offset printing plate 10 comprises, as shown in FIG. 3, one Plate body 12, which as a conventional, e.g. B. between 0.2 mm and 0.5 mm thick aluminum plate coated with a photosensitive layer according to the state of the art Technology can be trained.
  • the photosensitive layer can be coated with a respective one A, B, C and D are printed on the newspaper page.
  • the printing plates 10 at least one formed in the base body 10 Predetermined breaking point 14a, 14b, 14c, which the edges or edges of the partial plates 10A, 10B, Define 10C, 10D.
  • the partial plates 10A, 10B, 10C, 10D are each with the in the Offset newspaper printing press 1 to be printed image A, B, C, D of a newspaper page illustrated.
  • the predetermined breaking points 14a, 14b 14c run z. B. from the front edge 16a to the rear edge 16b of the pressure plate 10.
  • the Front edge 16a and the rear edge 16b for fastening the pressure plate on one Plate cylinder chamfered portions 18a, 18b include, as in conventional Printing plates are known.
  • the folded portions 18a, 18b are preferred generated after imaging the printing plate 10, for. B. by means of a known Plate bending machine or a plate bending machine.
  • the solo break points 14a, 14b, 14c can be used as a series of holes 20 with connecting portions 22 (Fig. 4) as a notch 24 (Fig. 5), as a series of spot welds 26 (Fig. 6) or as any combination of Notches 24, welding spots 26 and holes 20 with connecting sections 22 be trained.
  • the holes or openings 20 can be made after imaging the plate 10 e.g. B. by means of a modified plate cutter or a plate punch before or after imaging into plate 10 while end portions 18a, 18b the pressure plate 10 are folded or the register perforation is punched into the plate 10 becomes.
  • the openings 20 or notches or notch-shaped grooves 24 can also on a other known ways, e.g. B. by means of a laser beam, a saw or a Drilling device, are introduced into the plate 10.
  • the predetermined breaking points 14 can also be generated by preferably before folding the end sections 18a, 18b two or more at the front edge 16a or the rear edge 16b of the plate 10
  • Sub-panels 10A, 10B, 10C, 10D are glued together, e.g. B. by means of a known glue, adhesive or filler such. B. epoxy or acrylate.
  • the welding points 26 of the predetermined breaking points 14 of the embodiment shown in FIG. 6 As an alternative to this, preferably before the end sections 18a, 18b are folded Sub-plates 14a-d z. B. by means of a known spot welding device in the partial plates 10A, 10B, 10C and 10D.
  • the solar break points 14 are preferably after imaging the plate 10 in the Plate base 12 are introduced, as already in connection with a known Plate folding machine or plate punch has been described, it is also possible to Predetermined breaking points 14 before imaging the printing plate or even before the application of Introduce photosensitive layer on the plate base 12 in the plate base 12.
  • the entire plate 10 After imaging the entire plate with the respective image A, B, C and D, the entire plate 10 then applied in one piece on a plate cylinder 6 and attached to it, e.g. B. with the aid of a known plate clamping device 30a-d, as shown in Fig. 2.
  • the first production start is started and the printing machine for so long kept in operation until the first production run is finished and another Production run- B. with a different front page for another local edition of the Newspaper - can be started.
  • the printing machine is stopped corresponding sub-plate 10A, 10B, 10C or 10D by breaking the plate 10 on the corresponding predetermined breaking point 14a, 14b, 14c removed and by another, with the replaced new image for the other edition of the newspaper illustrated partial plate.
  • the printing plate 10 according to the invention can be broken at the predetermined breaking points 14, by z. B. the plate clamping device 30a-d opened for the corresponding partial plate while the jigs for those remaining on the plate cylinder Partial plates remain closed. Then the predetermined breaking point of the corresponding Partially broken plate, z. B. by holding an end portion, e.g. B. the rear End portion 16b and simultaneously rotating the plate cylinder 6th
  • a register setting mechanism used to align the Sub-plates 10A, 10B, 10C, 10D can be used to attach the tarpaulin 10 to the Break breaking points 14, z. B. by the respective register setting mechanism so is actuated that the partial plate to be replaced is moved back and forth until the Plate 10 breaks due to the mechanical forces generated at the predetermined breaking point 14.
  • the panel can then be removed as shown in the lower one Plate cylinder is shown in Fig. 2.
  • the device according to the invention and the method according to the invention were here in Described in connection with an offset newspaper printing press.
  • the invention is however, not limited to this, but may e.g. B. also in a flexographic printing machine or generally in another type of press, e.g. B. also in a sheet-fed rotary printing press, be used.
  • the predetermined breaking points 14 can also be arranged in such a way that the Printing plates 10 horizontally broken into a plurality of partial plates 10A, 10B, 10C, 10D if there are two or more sub-plates around the circumference of a plate cylinder are excited.
  • the breaking process of the single printing plate (as a whole) into a variety of partial plates by a mechanical Cutter, e.g. B. a knife or a blade, which z. B. also firm be arranged in the printing unit of the printing press, and z. B. by means of a hydraulic, electrical or pneumatic actuating device on the pressure plate can be.
  • the same method can be applied by a single sleeve-shaped plate is provided with a plurality of predetermined breaking points, which the Define edges of partial plates or partial sleeves, each on a newspaper page correspond.
  • the sleeve-shaped plate is in one piece on the plate cylinder applied, e.g. B. axially pushed onto the overhung cylinder.
  • To The end of the first production run of the printing press is the tubular plate broken as previously described, one newspaper page through another newspaper page, e.g. B. for another local edition to replace.
  • the new subplate can then z. B. by means of a known, conventional plate holding device on the plate cylinder be applied.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Printing Methods (AREA)

Abstract

The plate has a base body with one or more breakable links defining the edges of a sub-plates carrying print formats. Each sub-plate is for a respective newspaper page. The breakable links run in straight lines from the front edge to the rear edge of the printing plate. The links may be in the form of slots, or rows of holes such as punched holes, or as glued seams. A method of manufacturing a printing plate is also claimed.

Description

Die vorliegende Erfindung betrifft eine Druckplatte in einer Rotationsdruckmaschine, insbesondere eine Offset-Druckplatte in einer Rollenrotationsdruckmaschine für den Zeitungsdruck, gemäß dem Oberbegriff von Anspruch 1.The present invention relates to a printing plate in a rotary printing press, in particular an offset printing plate in a web-fed rotary printing press for the Newspaper printing, according to the preamble of claim 1.

In einer Rollenrotations-Offsetdruckmaschine wird in der Regel eine Papierbahn durch eine Vielzahl von Druckwerken geführt, in denen sie mit einem ein- oder mehrfarbigen Bild bedruckt wird. Im Zeitschriften- oder Zeitungsdruck besteht häufig die Notwendigkeit, eine oder mehrere der auf den Plattenzylindern der Druckmaschine angeordneten Druckplatten zu wechseln, z. B. um auf die erste Seite einer laufenden Ausgabe einer Zeitung die neuesten Nachrichten zu drucken oder um den Zeitungskopf wahrend eines Produktionslaufs zu ändern, wenn die Zeitung in verschiedenen Gebieten mit unterschiedlichen Namen erscheint.A web is usually passed through in a web-fed rotary offset printing press led a variety of printing units in which they with a single or multi-colored Image is printed. This is often the case in magazine or newspaper printing Need one or more of the on the plate cylinders of the press arranged pressure plates to change, for. B. to go to the first page of a current Issue a newspaper to print the latest news or around the newspaper head change during a production run if the newspaper is in different areas appears with different names.

Vor einem neuen Produktionslauf muß jedoch die Druckmaschine eingerichtet werden und es müssen auf die Plattenzylinder der Druckmaschine Druckplatten aufgebracht werden. Bei herkömmlichen Zeitungsdruckmaschinen, in denen in der Regel zwei, drei, vier oder sogar mehr Bahnen in einer entsprechenden Vielzahl von Druckwerken gleichzeitig bedruckt werden und die Druckwerke jeweils mindestens zwei, meist jedoch vier oder mehr Plattenzylinder umfassen, wird mit einer großen Anzahl von Druckplatten, u. U. bis zu hundert, gearbeitet, die in der richtigen Reihenfolge, Position und Ausrichtung (bezüglich der Ober- und Unterkante) auf dem jeweils richtigen Plattenzylinder montiert werden müssen.Before a new production run, however, the printing press must be set up and printing plates must be applied to the plate cylinders of the printing press. In conventional newspaper printing presses, in which usually two, three, four or even more webs in a corresponding number of printing units at the same time are printed and the printing units each have at least two, but usually four or include more plate cylinders, with a large number of printing plates, u. U. to to hundred, worked in the right order, position and orientation (with respect to the top and bottom edge) mounted on the correct plate cylinder Need to become.

Auch im Bereich der Druckvorstufe, die in der Regel die Vorbereitung des Layouts der Zeitungsseiten, die Übertragung der auf den einzelnen Zeitungsseiten enthaltenen Bilder auf einen Film und die Übertragung der Bilder vom Film auf die Druckplatte umfaßt, werden die Druckplatten einzeln gehandhabt, was bedeutet, daß für große Zeitungsdruckmaschinen, in denen z. B. hundert Seiten und mehr gedruckt werden, enorme Druckvorstufen-Kapazitäten und -Einrichtungen vorhanden sein müssen und die Vorbereitung der Druckplatten einen hohen Zeitaufwand erfordert.Also in the prepress area, which is usually the preparation of the layout of the Newspaper pages, the transmission of the images contained on the individual newspaper pages on a film and transferring the images from the film to the printing plate, the printing plates are handled individually, which means that for large Newspaper printing machines in which e.g. B. a hundred pages and more, enormous Prepress capacities and facilities must be available and the Preparing the printing plates requires a lot of time.

Eine Verkürzung der dadurch entstehenden Zeitspanne zwischen der Fertigstellung des Zeitungslayouts und dem Druckbeginn kann nur durch eine Erhöhung der Druckvorstufen-Kapazitäten und der Anzahl der Maschinenbediener, welche die Druckplatten montieren, erreicht werden. Eine weitere Möglichkeit besteht darin, automatische Plattenwechselsysteme einzusetzen, die jedoch teuer sind und für die in kompakten Druckmaschinen häufig nicht genügend Platz vorhanden ist.A shortening of the resulting time span between the completion of the Newspaper layouts and the start of printing can only be achieved by increasing prepress capacities and the number of machine operators who assemble the printing plates, can be achieved. Another option is automatic Use plate changing systems, which are expensive and for those in compact Printing presses often do not have enough space.

Ausgehend von den Nachteilen des Stands der Technik ist es eine Aufgabe der vorliegenden Erfindung, eine Offset-Druckplatte für eine Rotationsdruckmaschine, insbesondere eine Zeitungsdruckmaschine, zu schaffen, welche eine Reduzierung der benötigten Druckvorstufen-Kapazitäten und der zum Aufbringen der Druckplatten auf die Plattenzylinder einer Zeitungsdruckmaschine benötigten Zeit ermöglicht.Given the disadvantages of the prior art, it is a task of present invention, an offset printing plate for a rotary printing press, in particular to create a newspaper printing press, which reduces the required prepress capacities and those for applying the printing plates to the Plate cylinder of a newspaper printing machine allows the time required.

Eine weitere Aufgabe der Erfindung besteht darin, ein Verfahren zur Herstellung einer derartigen Offset-Druckplatte für eine Zeitungsdruckmaschine zu schaffen.Another object of the invention is to provide a method for producing a to create such an offset printing plate for a newspaper printing press.

Diese Aufgaben werden durch die Merkmale von Anspruch 1, 9 und 11 gelöst.These objects are solved by the features of claims 1, 9 and 11.

Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention emerge from the subclaims.

Die erfindungsgemäße Druckplatte für eine Rotationsdruckmaschine umfaßt einen Platten-Grundkörper oder eine Plattenbasis und eine Vielzahl von darin angeordneten Sollbruchstellen, welche die Kanten oder Ränder von Teilplatten definieren, die die jeweiligen, einer Zeitungsseite zugeordneten Druckbilder tragen.The printing plate according to the invention for a rotary printing press comprises a plate base body or a plate base and a plurality of them disposed Predetermined breaking points, which define the edges or edges of partial plates, which the wear respective print images assigned to a newspaper page.

Das erfindungsgemäße Verfahren zur Herstellung einer Offset-Druckplatte umfaßt die folgenden Schritte: Bereitstellung einer Plattenbasis und Erzeugung von Sollbruchstellen in der Plattenbasis, welche die Kanten oder Ränder von Teilplatten definieren, die ein zu druckendes Bild tragen. The inventive method for producing an offset printing plate comprises the following steps: Provision of a plate base and creation of predetermined breaking points in the plate base, which define the edges or margins of partial plates, the one to wear printing image.

Alternativ kann das erfindungsgemäße Verfahren zur Herstellung einer Offset-Druckplatte die folgenden Verfahrensschritte umfassen: Bereitstellung von mindestens zwei Teilplatten und Verbinden der Teilplatten miteinander, so daß sie eine einzige Druckplatte mit Sollbruchstellen bilden, welche in einem Stück auf den Plattenzylinder einer Offsetdruckmaschine aufgebracht werden kann.Alternatively, the method according to the invention for producing an offset printing plate the following process steps include: provision of at least two partial plates and joining the partial plates together so that they have a single pressure plate Form predetermined breaking points, which are in one piece on the plate cylinder Offset printing machine can be applied.

Die Merkmale der vorliegenden Erfindung werden in der folgenden Beschreibung bevorzugter Ausführungsbeispiele im Zusammenhang mit den beigefügten, nachstehend aufgeführten Zeichnungen näher erläutert.The features of the present invention will become apparent in the following description preferred embodiments in connection with the accompanying, below listed drawings explained in more detail.

Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Turmanordnung von Gummi-Gummi-Druckwerken zum Bedrucken einer vertikal geführten Bahn;
Fig. 2
einen schematischen Querschnitt eines der Druckwerke der Turmanordnung von Fig. 1 mit zwei Plattenzylindern, welche so ausgebildet sind, daß sie vier Teilplatten tragen können, wobei zu dem gezeigten Zeitpunkt eine der vier Teilplatten abgenommen wurde, um sie zu wechseln;
Fig. 3
eine schematische Ansicht einer erfindungsgemäßen Offset-Druckplatte mit durch gestrichelte Linien angedeuteten Sollbruchstellen, welche die Kanten der Teilplatten definieren;
Fig. 4
eine erfindungsgemäße Druckplatte, bei der die Solibruchstellen als eine Reihe von längs verlaufenden Löchern mit Verbindungsabschnitten ausgebildet sind;
Fig. 5
eine erfindungsgemäße Druckplatte, bei der die Sollbruchstellen als eine Kerbe ausgebildet sind;
Fig. 6
eine weitere Ausführungsform einer erfindungsgemäßen Druckplatte, bei der die Sollbruchstellen als eine Reihe von Schweißpunkten ausgebildet sind; und
Fig. 7
eine weitere Ausführungsform einer erfindungsgemäßen Druckplatte, bei der die Sollbruchstellen aus einer Klebeverbindung bestehen, mit der aneinandergrenzende Kanten von Teilplatten verbunden werden.
Show it:
Fig. 1
a schematic side view of a tower arrangement of rubber-rubber printing units for printing a vertically guided web;
Fig. 2
a schematic cross section of one of the printing units of the tower arrangement of Figure 1 with two plate cylinders, which are designed so that they can support four partial plates, at the time shown one of the four partial plates was removed to change them.
Fig. 3
a schematic view of an offset printing plate according to the invention with predetermined breaking points indicated by broken lines, which define the edges of the partial plates;
Fig. 4
a printing plate according to the invention, in which the solar break points are designed as a series of longitudinal holes with connecting sections;
Fig. 5
a printing plate according to the invention, in which the predetermined breaking points are formed as a notch;
Fig. 6
a further embodiment of a printing plate according to the invention, in which the predetermined breaking points are designed as a series of welding spots; and
Fig. 7
a further embodiment of a printing plate according to the invention, in which the predetermined breaking points consist of an adhesive connection with which adjoining edges of partial plates are connected.

Die in Fig. 1 gezeigte Rotations-Offsetdruckmaschine, insbesondere für den Zeitungsdruck, umfaßt eine Vielzahl von Druckwerken 4a, 4b, 4c, 4d und 4e mit jeweils mindestens einem Plattenzylinder 6 und mindestens einem Gummituchzylinder 8 zum Bedrucken einer Bahn 2 mit einem ein- oder mehrfarbigen Bild. In Fig. 1 ist nur eine Bahn 2 gezeigt. Die Rotations-Offsetdruckmaschine kann jedoch in Fig. 1 nicht gezeigte weitere Druckwerke zum Bedrucken einer Vielzahl von Bahnen 2, z. B. zwei, fünf oder acht Bahnen 2, umfassen.The rotary offset printing machine shown in Fig. 1, in particular for the Newspaper printing, comprises a plurality of printing units 4a, 4b, 4c, 4d and 4e with each at least one plate cylinder 6 and at least one blanket cylinder 8 for Printing a web 2 with a single or multi-color image. In Fig. 1 there is only one Lane 2 shown. However, the rotary offset printing machine cannot be shown in FIG. 1 further printing units for printing a plurality of webs 2, z. B. two, five or eight lanes 2.

Wie in Fig. 2 und 3 gezeigt ist, ist jeder der Plattenzylinder 6 so ausgebildet, daß er eine erfindungsgemäße, aus einer Vielzahl von Teilplatten 10A, 10B, 10C, 10D bestehende Offset-Druckplatte 10 aufnehmen kann.As shown in Figs. 2 and 3, each of the plate cylinders 6 is formed to be a according to the invention, consisting of a plurality of partial plates 10A, 10B, 10C, 10D Offset printing plate 10 can accommodate.

Eine erfindungsgemäße Offset-Druckplatte 10 umfaßt, wie in Fig. 3 gezeigt ist, einen Platten-Grundköper 12, der als eine herkömmliche, z. B. zwischen 0,2 mm und 0,5 mm dicke, mit einer photosensitiven Schicht überzogene Aluminiumplatte nach dem Stand der Technik ausgebildet sein kann. Die photosensitive Schicht kann mit einem einer jeweiligen Zeitungsseite entsprechenden Druckbild A, B, C und D bebildert werden.An offset printing plate 10 according to the invention comprises, as shown in FIG. 3, one Plate body 12, which as a conventional, e.g. B. between 0.2 mm and 0.5 mm thick aluminum plate coated with a photosensitive layer according to the state of the art Technology can be trained. The photosensitive layer can be coated with a respective one A, B, C and D are printed on the newspaper page.

Wie in Fig. 3 durch die gestrichelten Linien angedeutet ist, umfassen die erfindungsgemäßen Druckplatten 10 mindestens eine im Grundkörper 10 geformte Sollbruchstelle 14a, 14b, 14c, welche die Kanten oder Ränder der Teilplatten 10A, 10B, 10C, 10D definieren. Die Teilplatten 10A, 10B, 10C, 10D sind jeweils mit dem in der Offset-Zeitungsdruckmaschine 1 zu druckenden Druckbild A, B, C, D einer Zeitungsseite bebildert.As indicated in FIG. 3 by the dashed lines, the printing plates 10 according to the invention at least one formed in the base body 10 Predetermined breaking point 14a, 14b, 14c, which the edges or edges of the partial plates 10A, 10B, Define 10C, 10D. The partial plates 10A, 10B, 10C, 10D are each with the in the Offset newspaper printing press 1 to be printed image A, B, C, D of a newspaper page illustrated.

Die Sollbruchstellen 14a, 14b 14c verlaufen z. B. von der Vorderkante 16a zur Hinterkante 16b der Druckplatte 10. The predetermined breaking points 14a, 14b 14c run z. B. from the front edge 16a to the rear edge 16b of the pressure plate 10.

Wie in Fig. 3 weiterhin durch die punktierten Linien angedeutet ist, können die Vorderkante 16a und die Hinterkante 16b zum Befestigen der Druckplatte auf einem Plattenzylinder abgekantete Abschnitte 18a, 18b umfassen, wie sie bei herkömmlichen Druckplatten bekannt sind. Die abgekanteten Abschnitte 18a, 18b werden vorzugsweise nach dem Bebildern der Druckplatte 10 erzeugt, z. B. mittels eines bekannten Plattenabkanters oder einer Platten-Biegemaschine.As is further indicated in FIG. 3 by the dotted lines, the Front edge 16a and the rear edge 16b for fastening the pressure plate on one Plate cylinder chamfered portions 18a, 18b include, as in conventional Printing plates are known. The folded portions 18a, 18b are preferred generated after imaging the printing plate 10, for. B. by means of a known Plate bending machine or a plate bending machine.

Wie in Fig. 4, 5 und 6 weiterhin gezeigt ist, können die Solibruchstellen 14a, 14b, 14c als eine Reihe von Löchern 20 mit Verbindungsabschnitten 22 (Fig. 4), als eine Kerbe 24 (Fig. 5), als eine Reihe von Schweißpunkten 26 (Fig. 6) oder als eine beliebige Kombination aus Kerben 24, Schweißpunkten 26 und Löchern 20 mit Verbindungsabschnitten 22 ausgebildet sein. Die Löcher oder Öffnungen 20 können nach dem Bebildern der Platte 10 z. B. mittels eines modifizierten Plattenabkanters oder einer Plattenstanze vor oder nach dem Bebildern in die Platte 10 eingebracht werden, während die Endabschnitte 18a, 18b der Druckplatte 10 abgekantet werden oder die Registerlochung in die Platte 10 eingestanzt wird.As further shown in FIGS. 4, 5 and 6, the solo break points 14a, 14b, 14c can be used as a series of holes 20 with connecting portions 22 (Fig. 4) as a notch 24 (Fig. 5), as a series of spot welds 26 (Fig. 6) or as any combination of Notches 24, welding spots 26 and holes 20 with connecting sections 22 be trained. The holes or openings 20 can be made after imaging the plate 10 e.g. B. by means of a modified plate cutter or a plate punch before or after imaging into plate 10 while end portions 18a, 18b the pressure plate 10 are folded or the register perforation is punched into the plate 10 becomes.

Die Öffnungen 20 oder Kerben bzw. kerbenförmigen Nuten 24 können auch auf eine andere bekannte Weise, z. B. mittels eines Laserstrahls, einer Säge- oder einer Bohrvorrichtung, in die Platte 10 eingebracht werden.The openings 20 or notches or notch-shaped grooves 24 can also on a other known ways, e.g. B. by means of a laser beam, a saw or a Drilling device, are introduced into the plate 10.

Gemäß einer weiteren Ausführungsform der Erfindung können die Sollbruchstellen 14 auch erzeugt werden, indem vorzugsweise vor dem Abkanten der Endabschnitte 18a, 18b an der Vorderkante 16a oder der Hinterkante 16b der Platte 10 zwei oder mehrere Teilplatten 10A, 10B, 10C, 10D miteinander verleimt werden, z. B. mittels eines bekannten Leims, Klebstoffs oder Füllmaterials wie z. B. Epoxidharz oder Acrylat.According to a further embodiment of the invention, the predetermined breaking points 14 can also be generated by preferably before folding the end sections 18a, 18b two or more at the front edge 16a or the rear edge 16b of the plate 10 Sub-panels 10A, 10B, 10C, 10D are glued together, e.g. B. by means of a known glue, adhesive or filler such. B. epoxy or acrylate.

Die Schweißpunkte 26 der Sollbruchstellen 14 der in Fig. 6 gezeigten Ausführungsform werden alternativ hierzu vorzugsweise vor dem Abkanten der Endabschnitte 18a, 18b der Teilplatten 14a-d z. B. mittels eines bekannten Punktschweißgeräts in die Teilplatten 10A, 10B, 10C und 10D eingebracht. The welding points 26 of the predetermined breaking points 14 of the embodiment shown in FIG. 6 As an alternative to this, preferably before the end sections 18a, 18b are folded Sub-plates 14a-d z. B. by means of a known spot welding device in the partial plates 10A, 10B, 10C and 10D.

Obwohl die Solibruchstellen 14 vorzugsweise nach dem Bebildern der Platte 10 in die Plattenbasis 12 eingebracht werden, wie bereits im Zusammenhang mit einem bekannten Plattenabkanter oder Plattenstanzer beschrieben wurde, ist es ebenso möglich, die Sollbruchstellen 14 vor dem Bebildern der Druckplatte oder sogar vor dem Aufbringen der photosensitiven Schicht auf die Plattenbasis 12 in die Plattenbasis 12 einzubringen.Although the solar break points 14 are preferably after imaging the plate 10 in the Plate base 12 are introduced, as already in connection with a known Plate folding machine or plate punch has been described, it is also possible to Predetermined breaking points 14 before imaging the printing plate or even before the application of Introduce photosensitive layer on the plate base 12 in the plate base 12.

Nach dem Bebildern der gesamten Platte mit dem jeweiligen Bild A, B, C und D wird die gesamte Platte 10 anschließend in einem Stück auf einem Plattenzylinder 6 aufgebracht und auf diesem befestigt, z. B. mit Hilfe einer bekannten Plattenspannvorrichtung 30a - d, wie sie in Fig. 2 gezeigt ist.After imaging the entire plate with the respective image A, B, C and D, the entire plate 10 then applied in one piece on a plate cylinder 6 and attached to it, e.g. B. with the aid of a known plate clamping device 30a-d, as shown in Fig. 2.

Nach dem Aufbringen aller weiteren, vorzugsweise ebenfalls erfindungsgemäßen Druckplatten 10 wird der erste Produktionstauf gestartet und die Druckmaschine so lange in Betrieb gehalten, bis der erste Produktionslauf beendet ist und ein weiterer Produktionslauf- z. B. mit einer anderen Titelseite für eine andere Lokalausgabe der Zeitung - begonnen werden kann. Dazu wird die Druckmaschine angehalten, die entsprechende Teilplatte 10A, 10B, 10C oder 10D durch Brechen der Platte 10 an der entsprechenden Sollbruchstelle 14a, 14b, 14c abgenommen und durch eine andere, mit dem neuen Bild für die andere Ausgabe der Zeitung bebilderte Teilplatte ersetzt.After the application of all further, preferably likewise according to the invention Printing plates 10, the first production start is started and the printing machine for so long kept in operation until the first production run is finished and another Production run- B. with a different front page for another local edition of the Newspaper - can be started. To do this, the printing machine is stopped corresponding sub-plate 10A, 10B, 10C or 10D by breaking the plate 10 on the corresponding predetermined breaking point 14a, 14b, 14c removed and by another, with the replaced new image for the other edition of the newspaper illustrated partial plate.

Die erfindungsgemäße Druckplatte 10 kann an den Sollbruchstellen 14 gebrochen werden, indem z. B. die Plattenspannvorrichtung 30a - d für die entsprechende Teilplatte geöffnet wird, während die Spannvorrichtungen für die auf dem Plattenzylinder verbleibenden Teilplatten geschlossen bleiben. Anschließend wird die Sollbruchstelle der entsprechenden Teilplatte manuell gebrochen, z. B. durch Festhalten eines Endabschnitts, z. B. des hinteren Endabschnitts 16b und gleichzeitiges Drehen des Plattenzylinders 6.The printing plate 10 according to the invention can be broken at the predetermined breaking points 14, by z. B. the plate clamping device 30a-d opened for the corresponding partial plate while the jigs for those remaining on the plate cylinder Partial plates remain closed. Then the predetermined breaking point of the corresponding Partially broken plate, z. B. by holding an end portion, e.g. B. the rear End portion 16b and simultaneously rotating the plate cylinder 6th

Alternativ kann auch ein verwendeter Registereinstellmechanismus zum Ausrichten der Teilplatten 10A, 10B, 10C, 10D dazu verwendet werden, die Plane 10 an den Sollbruchstellen 14 zu brechen, z. B. indem der jeweilige Registereinstellmechanismus so betätigt wird, daß die auszuwechselnde Teilplatte vor und zurück bewegt wird, bis die Platte 10 aufgrund der so erzeugten mechanischen Kräfte an der Sollbruchstelle 14 bricht. Alternatively, a register setting mechanism used to align the Sub-plates 10A, 10B, 10C, 10D can be used to attach the tarpaulin 10 to the Break breaking points 14, z. B. by the respective register setting mechanism so is actuated that the partial plate to be replaced is moved back and forth until the Plate 10 breaks due to the mechanical forces generated at the predetermined breaking point 14.

Die Teilplatte kann anschließend abgenommen werden, wie es anhand des unteren Plattenzylinders in Fig. 2 gezeigt ist.The panel can then be removed as shown in the lower one Plate cylinder is shown in Fig. 2.

Die erfindungsgemäße Vorrichtung und das erfindungsgemäße Verfahren wurden hier im Zusammenhang mit einer Offset-Zeitungsdruckmaschine beschrieben. Die Erfindung ist jedoch nicht darauf beschränkt, sondern kann z. B. auch in einer Flexodruckmaschine oder allgemein in einer anderen Druckmaschinenart, z. B. auch in einer Bogenrotations-Druckmschine, eingesetzt werden.The device according to the invention and the method according to the invention were here in Described in connection with an offset newspaper printing press. The invention is however, not limited to this, but may e.g. B. also in a flexographic printing machine or generally in another type of press, e.g. B. also in a sheet-fed rotary printing press, be used.

Die Sollbruchstellen 14 können ferner in einer Weise angeordnet sein, daß die Druckplatten 10 horizontal in eine Vielzahl von Teilplatten 10A, 10B, 10C, 10D gebrochen werden, wenn zwei oder mehr Teilplatten um den Umfang eines Plattenzylinders herum gespannt sind.The predetermined breaking points 14 can also be arranged in such a way that the Printing plates 10 horizontally broken into a plurality of partial plates 10A, 10B, 10C, 10D if there are two or more sub-plates around the circumference of a plate cylinder are excited.

Gemäß einer weiteren Ausführungsform der Erfindung kann der Brechvorgang der einzelnen Druckplatte (als ganzes) in eine Vielzahl von Teilplatten durch ein mechanisches Schneidgerät, z. B. ein Messer oder eine Klinge, unterstützt werden, welches z. B. auch fest im Druckwerk der Druckmaschine angeordnet sein, und z. B. mittels einer hydraulischen, elektrischen oder pneumatischen Betätigungseinrichtung an die Druckplatte angestellt werden kann.According to a further embodiment of the invention, the breaking process of the single printing plate (as a whole) into a variety of partial plates by a mechanical Cutter, e.g. B. a knife or a blade, which z. B. also firm be arranged in the printing unit of the printing press, and z. B. by means of a hydraulic, electrical or pneumatic actuating device on the pressure plate can be.

In Druckmaschinen mit einem Plattenzylinder, auf den hülsenförmige Druckplatten aufgebracht werden, kann dasselbe Verfahren angewandt werden, indem eine einzelne hülsenförmige Platte mit einer Vielzahl von Sollbruchstellen versehen wird, welche die Kanten von Teilplatten oder Teilhülsen definieren, die jeweils einer Zeitungsseite entsprechen. Die hülsenförmige Platte wird in einem Stück auf den Plattenzylinder aufgebracht, z. B. axial auf den fliegend gelagerten Zylinder aufgeschoben. Nach Beendigung des ersten Produktionslaufs der Druckmaschine wird die hülsenförmige Platte wie bereits beschrieben gebrochen, um eine Zeitungsseite durch eine andere Zeitungsseite, z. B. für eine andere Lokalausgabe, zu ersetzen. Die neue Teilplatte kann anschließend z. B. mittels einer bekannten, herkömmlichen Plattenhaltevorrichtung auf den Plattenzylinder aufgebracht werden. In printing presses with a plate cylinder, on the sleeve-shaped printing plates the same method can be applied by a single sleeve-shaped plate is provided with a plurality of predetermined breaking points, which the Define edges of partial plates or partial sleeves, each on a newspaper page correspond. The sleeve-shaped plate is in one piece on the plate cylinder applied, e.g. B. axially pushed onto the overhung cylinder. To The end of the first production run of the printing press is the tubular plate broken as previously described, one newspaper page through another newspaper page, e.g. B. for another local edition to replace. The new subplate can then z. B. by means of a known, conventional plate holding device on the plate cylinder be applied.

Schließlich kann es vorgesehen sein, daß beim Einsatz von aus dem Stand der Technik bekannten Direktbebilderungseinrichtungen die erfindungsgemäßen Platten als unbebilderte Planen in die Maschine eingesetzt und im Anschluß daran in der Maschine bebildert werden. Nach der Beendigung des Druckauftrags wird dann die jeweilige Platte in der oben beschriebenen Weise herausgebrochen und z. B. durch eine im herkömmlicher Weise außerhalb bebilderte Druckplatte ersetzt, wodurch sich die Druck- und Bebilderungspausen nochmals erheblich verkürzen lassen. Finally, it can be provided that when using from the prior art known direct imaging devices the plates according to the invention as unimaged tarpaulins inserted into the machine and then in the machine be illustrated. After the print job is finished, the respective plate is then broken out in the manner described above and z. B. by a conventional Way replaced outside illustrated printing plate, which is the printing and Have the imaging breaks shortened considerably again.

Liste der BezugszeichenList of reference numbers

11
DruckmaschinePrinting press
22nd
Bahntrain
4a4a
DruckwerkPrinting unit
4b4b
DruckwerkPrinting unit
4c4c
DruckwerkPrinting unit
4d4d
DruckwerkPrinting unit
4e4e
DruckwerkPrinting unit
66
PlattenzylinderPlate cylinder
88th
GummituchzylinderBlanket cylinder
1010th
Druckplatteprinting plate
10A10A
TeilplattePartial plate
10B10B
TeilplattePartial plate
10C10C
TeilplattePartial plate
10D10D
TeilplattePartial plate
1212th
PlattenbasisPlate base
14a14a
SollbruchstellePredetermined breaking point
14b14b
SollbruchstellePredetermined breaking point
14c14c
SollbruchstellePredetermined breaking point
16a16a
VorderkanteLeading edge
16b16b
HinterkanteTrailing edge
18a18a
abgekanteter Abschnittfolded section
18b18b
abgekanteter Abschnittfolded section
2020th
LöcherHoles
2222
VerbindungsabschnitteConnecting sections
2424th
Kerbescore
2626
SchweißpunkteSpot welds
3030th
PlattenspannvorrichtungPlate clamping device
AA
Druckbild für eine ZeitungsseitePrint image for a newspaper page
BB
Druckbild für eine Zeitungsseite Print image for a newspaper page
CC.
Druckbild für eine ZeitungsseitePrint image for a newspaper page
DD
Druckbild für eine ZeitungsseitePrint image for a newspaper page

Claims (13)

Druckplatte in einer Rotatationsdruckmaschine mit einem Platten-Grundkörper (12) gekennzeichnet durch eine oder mehrere im Grundkörper (12) gebildete Sollbruchstellen (14a, 14b, 14c), welche die Ränder von Druckbildern tragenden Teilplatten (10A, 10B, 10C, 10D) definieren.Printing plate in a rotary printing press with a plate base (12) characterized by one or more in the base body (12) formed predetermined breaking points (14a, 14b, 14c), which are the edges of printed images define load-bearing sub-plates (10A, 10B, 10C, 10D). Druckplatte nach Anspruch 1,
dadurch gekennzeichnet,
daß die Teilplatten (10A, 10B, 10C, 10D) jeweils einer durch die Druckplatte (10) zu druckenden Zeitungsseite (A, B, C, D) zugeordnet sind.
Printing plate according to claim 1,
characterized,
that the partial plates (10A, 10B, 10C, 10D) are each assigned to a newspaper page (A, B, C, D) to be printed by the printing plate (10).
Druckplatte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Sollbruchstellen (14a, 14b, 14c) geradlinig von der Vorderkante (16a) zur Hinterkante (16b) der Druckplatte (10) verlaufen.
Printing plate according to one of the preceding claims,
characterized,
that the predetermined breaking points (14a, 14b, 14c) run straight from the front edge (16a) to the rear edge (16b) of the pressure plate (10).
Druckplatte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Sollbruchstellen (14a, 14b, 14c) jeweils als durchgehende Kerben (24) ausgebildet sind.
Printing plate according to one of the preceding claims,
characterized,
that the predetermined breaking points (14a, 14b, 14c) are each designed as continuous notches (24).
Druckplatte nach einem der Ansprüche 1-3,
dadurch gekennzeichnet,
daß die Sollbruchstellen (14a, 14b, 14c) jeweils als eine Reihe von Löchern (20) ausgebildet sind.
Pressure plate according to one of claims 1-3,
characterized,
that the predetermined breaking points (14a, 14b, 14c) are each designed as a series of holes (20).
Druckplatte nach Anspruch 5,
dadurch gekennzeichnet,
daß die Löcher (20) Stanzlöcher sind.
Printing plate according to claim 5,
characterized,
that the holes (20) are punch holes.
Druckplatte nach einem der Ansprüche 1-3,
dadurch gekennzeichnet,
daß die Teilplatten (10A, 10B, 10C, 10D) durch einen Klebstoff miteinander verbunden sind und daß die Sollbruchstellen (14a, 14b, 14c) jeweils als Klebenähte ausgebildet sind.
Pressure plate according to one of claims 1-3,
characterized,
that the partial plates (10A, 10B, 10C, 10D) are connected to each other by an adhesive and that the predetermined breaking points (14a, 14b, 14c) are each formed as adhesive seams.
Druckplatte nach einem der Ansprüche 1-3,
dadurch gekennzeichnet,
daß die Teilplatten (10A, 10B, 10C, 10D) durch Schweißpunkte (26) miteinander verbunden sind und daß die Sollbruchstellen (14a, 14b, 14c) jeweils als eine Reihe von Schweißpunkten (26) gebildet werden.
Pressure plate according to one of claims 1-3,
characterized,
that the partial plates (10A, 10B, 10C, 10D) are connected to one another by welding spots (26) and that the predetermined breaking points (14a, 14b, 14c) are each formed as a series of welding spots (26).
Verfahren zur Herstellung einer Druckplatte,
gekennzeichnet durch
die folgenden Schritte:
Bereitstellen eines Platten-Grundkörpers (12); und Einbringen von Sollbruchstellen (14a, 14b 14c, 14d) in den Platten-Grundkörper (12), wobei die Sollbruchstellen (14a, 14b, 14c) die Ränder von Druckbildern tragenden Teilplatten (10A, 10B, 10C, 10D) definieren.
Process for the production of a printing plate,
marked by
the following steps:
Providing a plate base body (12); and introducing predetermined breaking points (14a, 14b 14c, 14d) into the plate base body (12), the predetermined breaking points (14a, 14b, 14c) defining the edges of partial plates (10A, 10B, 10C, 10D) bearing printed images.
Verfahren nach Anspruch 9,
dadurch gekennzeichnet,
daß jede Teilplatte (10A, 10B, 10C, 10D) einer Zeitungsseite entsprechendes Druckbild (A, B, C, D) trägt.
Method according to claim 9,
characterized,
that each partial plate (10A, 10B, 10C, 10D) carries a printed image (A, B, C, D) corresponding to a newspaper page.
Verfahren zur Herstellung einer Druckplatte,
gekennzeichnet durch
die folgenden Schritte:
Bereitstellen von mindestens zwei Teilplatten (10A, 10B, 10C, 10D); und Verbinden der mindestens zwei Teilplatten (10A, 10B, 10C, 10D) miteinander, in der Weise, daß sie eine einzige, Sollbruchstellen (14a, 14b, 14c) aufweisende Druckplatte (10) bilden, welche in einem Stück auf einen Plattenzylinder (6) einer Druckmaschine (1) aufgebracht werden kann.
Process for the production of a printing plate,
marked by
the following steps:
Providing at least two partial plates (10A, 10B, 10C, 10D); and connecting the at least two partial plates (10A, 10B, 10C, 10D) to one another in such a way that they form a single pressure plate (10) having predetermined breaking points (14a, 14b, 14c), which are integrally attached to a plate cylinder (6 ) a printing press (1) can be applied.
Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
daß die Teilplatten (10A, 10B, 10C, 10D) durch Klebstoff miteinander verbunden werden.
A method according to claim 11,
characterized,
that the partial plates (10A, 10B, 10C, 10D) are connected to one another by adhesive.
Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
daß die Teilplatten (10A, 10B, 10C, 10D) durch Schweißpunkte (26) miteinander verbunden werden.
A method according to claim 11,
characterized,
that the partial plates (10A, 10B, 10C, 10D) are connected to one another by welding spots (26).
EP99123969A 1998-12-23 1999-12-06 Printing plate for a rotating offset printer Expired - Lifetime EP1013467B1 (en)

Applications Claiming Priority (2)

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US221192 1998-12-23
US09/221,192 US6161479A (en) 1998-12-23 1998-12-23 Printing plate for a lithographic rotary printing press

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EP1013467A3 EP1013467A3 (en) 2003-01-08
EP1013467B1 EP1013467B1 (en) 2004-09-01

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AT (1) ATE275045T1 (en)
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JP2000190650A (en) 2000-07-11
EP1013467B1 (en) 2004-09-01
EP1013467A3 (en) 2003-01-08
DE59910391D1 (en) 2004-10-07
US6161479A (en) 2000-12-19
ATE275045T1 (en) 2004-09-15
JP4559572B2 (en) 2010-10-06

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