EP0303208B1 - Device for closing the gap between the ends of an intaglio plate attached to a form cylinder - Google Patents

Device for closing the gap between the ends of an intaglio plate attached to a form cylinder Download PDF

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Publication number
EP0303208B1
EP0303208B1 EP88112836A EP88112836A EP0303208B1 EP 0303208 B1 EP0303208 B1 EP 0303208B1 EP 88112836 A EP88112836 A EP 88112836A EP 88112836 A EP88112836 A EP 88112836A EP 0303208 B1 EP0303208 B1 EP 0303208B1
Authority
EP
European Patent Office
Prior art keywords
gap
plate
closing
plate attached
form cylinder
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
EP88112836A
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German (de)
French (fr)
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EP0303208A2 (en
EP0303208A3 (en
Inventor
Joachim Dorow
Gerhard Bleckmann
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.)
BASF SE
Original Assignee
BASF SE
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Publication date
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Publication of EP0303208A2 publication Critical patent/EP0303208A2/en
Publication of EP0303208A3 publication Critical patent/EP0303208A3/en
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Publication of EP0303208B1 publication Critical patent/EP0303208B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a device for closing the gap between the ends of a gravure plate clamped on a forme cylinder, with a plate covering the gap and devices for filling the gap cavity with plastic and hardenable material, consisting of two shaped pieces - which are inserted onto the shaft ends of the forme cylinder -, A profile firmly connected to the fittings, in which two movable pressure strips are incorporated.
  • This object is achieved in that a plurality of pressure screws distributed over the length of the pressure bars are arranged above the pressure bars.
  • the forme cylinder 1 of a sheet-fed or rotary rotogravure printing machine is provided with a groove 2 which runs along the forme cylinder axis and widens from the cylinder surface to the cylinder center, into which the intaglio printing plate 3 with the two is clamped folded ends 4 is hooked at an acute angle.
  • a plate 6 is placed over the two end sections of the intaglio printing plate, which is elastically bendable or shaped according to the contour of the cylinder surface.
  • the device according to the invention is used to press the plate, the construction of which is described below.

Landscapes

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

Description

Die Erfindung betrifft eine Vorrichtung zum Verschließen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte, mit einer den Spalt abdeckenden Platte und Einrichtungen zum Füllen des Spalthohlraums mit plastischem und aushärtbarem Material, bestehend aus zwei Formstücken - die auf die Wellenenden des Formzylinders eingesetzt werden -, einem mit den Formstücken fest verbundenen Profil, in das zwei bewegbare Andrückleisten eingearbeitet sind.The invention relates to a device for closing the gap between the ends of a gravure plate clamped on a forme cylinder, with a plate covering the gap and devices for filling the gap cavity with plastic and hardenable material, consisting of two shaped pieces - which are inserted onto the shaft ends of the forme cylinder -, A profile firmly connected to the fittings, in which two movable pressure strips are incorporated.

Es ist bekannt, Tiefdruckplatten, bestehend aus einem dimensionsstabilen und biegsamen Träger und einer darauf aufgebrachten Deckschicht, auf einen Formzylinder einer Bogen- oder Rotationsdruckmaschine aufzuspannen. Hierzu ist der Formzylinder mit einer parallel oder auch schräg zur Formzylinderachse verlaufenden Nut versehen, in die die Tiefdruckplatte mit umgekanteten Enden unter spitzem Winkel eingehängt und festgehalten wird. Der dabei entstehende Spalt zwischen den beiden Enden der Tiefdruckplatte wird mit einer Kunststoffmasse verschlossen. Dazu wird eine fließfähige und aushärtbare Masse in den Spalt gefüllt, nachdem zuvor dieser durch ein Flächenstück, beispielsweise eine den Spalt abdeckende Platte mittels eines Druckstücks abgedeckt wurde (s. EP-A 0 118 866).It is known to clamp gravure printing plates, consisting of a dimensionally stable and flexible support and a cover layer applied thereon, onto a forme cylinder of a sheet-fed or rotary printing machine. For this purpose, the forme cylinder is provided with a groove running parallel or also obliquely to the forme cylinder axis, into which the intaglio printing plate is hung and held at an acute angle with bent ends. The resulting gap between the two ends of the rotogravure plate is closed with a plastic compound. For this purpose, a flowable and curable mass is filled into the gap after it has been covered beforehand by a flat piece, for example a plate covering the gap, by means of a pressure piece (see EP-A 0 118 866).

Bei der Weiterentwicklung obiger Vorrichtungen wurde das Druckstück durch zwei Biegelineale ersetzt, wobei dieselben extrem biegesteif ausgeführt sein müssen, um ein teilweises Abheben der Biegeleisten beim Einspritzen der Kunststoffmasse zu verhindern. Dies hat zur Folge, daß unter der Platte Kunststoffmasse herausgedrückt wird (s. DE-A 34 01 501).In the further development of the above devices, the pressure piece was replaced by two bending rulers, the same having to be designed to be extremely rigid in order to prevent the bending strips from being partially lifted when the plastic compound was injected. This has the consequence that plastic mass is pressed out from under the plate (see DE-A 34 01 501).

All die vorgenannten Vorrichtungen sind mit dem Nachteil behaftet, daß dieselben sehr schwer sind und zudem schwer zu handhaben sind. Des weiteren ist die Umstellung auf verschiedene Zylinderdurchmesser mit diesen Vorrichtungen nicht flexibel genug. Letztendlich konnte auch mit den oben erwähnten Biegelinealen eine Durchbiegung derselben beim Einspritzen der Kunststoffmasse nicht verhindert werden.All of the above devices have the disadvantage that they are very heavy and also difficult to handle. Furthermore, the conversion to different cylinder diameters is not flexible enough with these devices. Ultimately, even with the above-mentioned bending rulers, it was not possible to prevent them from deflecting when the plastic compound was injected.

Es stellte sich daher die Aufgabe, eine Vorrichtung zum Verschließen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte zu entwickeln, die ein deutlich geringeres Gewicht aufweist, so daß dieselbe bei kleineren Druckeinheiten von einer Person gehandhabt werden kann. Des weiteren sollte der Spaltverschluß auf dem Formzylindertransportwagen oder in der Druckmaschine selbst vorgenommen werden können, und eine Durchbiegung der Biegelineale ausgeschlossen werden.It was therefore the task of developing a device for closing the gap between the ends of a gravure printing plate clamped on a forme cylinder, which has a significantly lower weight, so that it can be handled by one person in smaller printing units can be. Furthermore, it should be possible to close the gap on the forme cylinder transport carriage or in the printing press itself, and to prevent deflection of the bending rulers.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß über den Andruckleisten jeweils mehrere über die Länge der Andrückleisten verteilte Andrückschrauben angeordnet sind.This object is achieved in that a plurality of pressure screws distributed over the length of the pressure bars are arranged above the pressure bars.

Zum besseren Verständnis der Erfindung ist ein Ausführungsbeispiel anhand der Zeichnung nachfolgend beschrieben:For a better understanding of the invention, an embodiment is described below with reference to the drawing:

Es zeigen

Figur 1
den Formzylinder mit aufgespannter Tiefdruckplatte und der erfindungsgemäßen Vorrichtung zum Verschließen des Spaltes im Querschnitt,
Figur 2
den Formzylinder wie Figur 1, jedoch im Längsschnitt.
Show it
Figure 1
the forme cylinder with a rotogravure plate and the device according to the invention for closing the gap in cross section,
Figure 2
the form cylinder as Figure 1, but in longitudinal section.

Der Formzylinder 1 einer Bogen- oder Rotationstiefdruckmaschine ist, wie in Figur 1 und 2 zu sehen, mit einer entlang der Formzylinderachse verlaufenden und von der Zylinderoberfläche zum Zylinderzentrum hin sich aufweitenden Nut 2 versehen, in die die auf dem Formzylinder aufgespannte Tiefdruckplatte 3 mit den beiden umgekanteten Enden 4 unter spitzem Winkel eingehängt ist. Zum Verschließen des Spaltes 5 zwischen den beiden Enden wird eine die beiden Endabschnitte der Tiefdruckplatte übergreifende Platte 6 aufgelegt, die elastisch biegbar oder entsprechend der Kontur der Zylinderoberfläche geformt ist. Zum Andrücken der Platte wird die erfindungsgemäße Vorrichtung verwendet, deren Aufbau nachstehend beschrieben wird.As can be seen in FIGS. 1 and 2, the forme cylinder 1 of a sheet-fed or rotary rotogravure printing machine is provided with a groove 2 which runs along the forme cylinder axis and widens from the cylinder surface to the cylinder center, into which the intaglio printing plate 3 with the two is clamped folded ends 4 is hooked at an acute angle. To close the gap 5 between the two ends, a plate 6 is placed over the two end sections of the intaglio printing plate, which is elastically bendable or shaped according to the contour of the cylinder surface. The device according to the invention is used to press the plate, the construction of which is described below.

Zwischen den zwei Formstücken 7, die in die Wellenenden des Formzylinders eingesetzt sind, befindet sich ein mit dem Formstück fest verbundenes Profil 8, in welches bewegbar angeordnete Andrückleisten 9 eingearbeitet sind, die in Richtung Formzylinder verstellbar sind. Zusätzlich sind in diese Profile - mit den Andrückleisten fluchtend - mehrere Andrückschrauben 10 eingearbeitet, mittels deren die Andrückleisten auf ihrer gesamten Länge mit hoher Kraft gegen die Platte angedrückt werden können, so daß auf der gesamten Länge des Zylinders beidseitig des Spaltes Kontakt zwischen Platte und Tiefdruckplatte besteht. Dadurch wird erreicht, daß beim Einspritzen der Kunststoffmasse dieselbe nicht zwischen fehlenden Kontaktstellen zwischen Platte und Tiefdruckplatte herausfließen kann.Between the two shaped pieces 7, which are inserted into the shaft ends of the forme cylinder, there is a profile 8 firmly connected to the shaped piece, into which movably arranged pressure strips 9 are incorporated, which are adjustable in the direction of the forme cylinder. In addition, in these profiles - aligned with the pressure bars - several pressure screws 10 are incorporated, by means of which the pressure bars can be pressed against the plate over their entire length with high force, so that contact between the plate and gravure plate is provided on both sides of the gap over the entire length of the cylinder consists. This ensures that when the plastic mass is injected it cannot flow out between missing contact points between the plate and the gravure plate.

Claims (1)

  1. Apparatus for closing the gap between the ends of a gravure printing plate (3) clamped on a plate cylinder (1), having a gap (5) - covering plate (6) and means for filling the gap cavity with plastic and curable material, consisting of two shaped pieces (7), which are mounted on the shaft ends of the plate cylinder, and a section (8) which is firmly connected to the shaped pieces and in which two displaceable pressure bars (9) are incorporated, wherein a plurality of pressure screws (10) distributed over the length of the pressure bars are arranged above each of the pressure bars.
EP88112836A 1987-08-14 1988-08-06 Device for closing the gap between the ends of an intaglio plate attached to a form cylinder Expired - Lifetime EP0303208B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873727115 DE3727115A1 (en) 1987-08-14 1987-08-14 DEVICE FOR CLOSING THE GAP BETWEEN THE ENDS OF A PRINTING PLATE CLAMPED ON A FORM CYLINDER
DE3727115 1987-08-14

Publications (3)

Publication Number Publication Date
EP0303208A2 EP0303208A2 (en) 1989-02-15
EP0303208A3 EP0303208A3 (en) 1989-11-23
EP0303208B1 true EP0303208B1 (en) 1992-03-11

Family

ID=6333746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112836A Expired - Lifetime EP0303208B1 (en) 1987-08-14 1988-08-06 Device for closing the gap between the ends of an intaglio plate attached to a form cylinder

Country Status (6)

Country Link
US (1) US4896603A (en)
EP (1) EP0303208B1 (en)
JP (1) JPS6469347A (en)
CA (1) CA1306640C (en)
DE (2) DE3727115A1 (en)
ES (1) ES2029502T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102858A1 (en) * 1990-03-08 1991-09-12 Heidelberger Druckmasch Ag PRINTING CYLINDERS FOR ROTARY PRINTING MACHINES
JP3878622B2 (en) * 2004-05-19 2007-02-07 株式会社東京機械製作所 Blanket cylinder filling material
US20060054328A1 (en) * 2004-09-16 2006-03-16 Chevron U.S.A. Inc. Process of installing compliant offshore platforms for the production of hydrocarbons
CN100417521C (en) * 2005-02-23 2008-09-10 吴广顺 Inclined open technology of single sheet paper gravure machie printing plate rotary drum and flat sheet type gravure technology
CN115298040A (en) * 2020-03-23 2022-11-04 东丽株式会社 Cylindrical printing plate and method for manufacturing printed matter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527520A1 (en) * 1982-05-27 1983-12-02 Cuir Jean Pierre DEVICE FOR FIXING A PLATE ON A CYLINDER
DK159251C (en) * 1983-03-12 1991-02-18 Basf Ag PROCEDURE FOR CLOSING THE SPACE BETWEEN A END OF THE PRESSURE PRESSURE CYLINDER OPENING THE END OF THE PRESSURE PRESSURE Cylinder, AND THE FITTING OF THE DEPTH PRESSURE DEVICE
DE3401501A1 (en) * 1984-01-18 1985-07-25 Basf Ag, 6700 Ludwigshafen DEVICE FOR CLOSING THE GAP BETWEEN THE ENDS OF A PRINTING PLATE CLAMPED ON A FORM CYLINDER
DE3433046A1 (en) * 1984-09-08 1986-03-20 Basf Ag, 6700 Ludwigshafen METHOD FOR CLOSING THE GAP BETWEEN THE ENDS OF PRINTING PLATES CLAMPED ON FORM CYLINDERS
ATE43294T1 (en) * 1985-07-26 1989-06-15 De La Rue Giori Sa DEVICE AND METHOD FOR MOUNTING PRESSURE PLATES ON PLATE CYLINDER.

Also Published As

Publication number Publication date
US4896603A (en) 1990-01-30
ES2029502T3 (en) 1992-08-16
DE3869013D1 (en) 1992-04-16
EP0303208A2 (en) 1989-02-15
CA1306640C (en) 1992-08-25
EP0303208A3 (en) 1989-11-23
JPS6469347A (en) 1989-03-15
DE3727115A1 (en) 1989-02-23

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