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EP0151397B1 - Device for closing the gap between the ends of an intaglio plate attached to a forme cylinder - Google Patents

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

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Publication number
EP0151397B1
EP0151397B1 EP85100234A EP85100234A EP0151397B1 EP 0151397 B1 EP0151397 B1 EP 0151397B1 EP 85100234 A EP85100234 A EP 85100234A EP 85100234 A EP85100234 A EP 85100234A EP 0151397 B1 EP0151397 B1 EP 0151397B1
Authority
EP
European Patent Office
Prior art keywords
gap
centering
pair
plate
forme 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
Application number
EP85100234A
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German (de)
French (fr)
Other versions
EP0151397A3 (en
EP0151397A2 (en
Inventor
Gerhard Bleckmann
John Dr. Lynch
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
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 BASF SE filed Critical BASF SE
Publication of EP0151397A2 publication Critical patent/EP0151397A2/en
Publication of EP0151397A3 publication Critical patent/EP0151397A3/en
Application granted granted Critical
Publication of EP0151397B1 publication Critical patent/EP0151397B1/en
Expired 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
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/924—Deformation, material removal, or molding for manufacture of seal

Definitions

  • the invention relates to a device for closing the gap between the ends of an intaglio printing plate clamped on a forme cylinder according to the preamble of patent claim 1.
  • a plate was covered by a pressure piece (patent applications DE-A-2545618 and DE-A-33 08 807). In the area of the plate ends, this creates a continuous, uniform surface without elevations and depressions, but an exact continuation of the surface of the forme cylinder is not guaranteed. It depends on the exact positioning of the plate in relation to the gap.
  • the forme cylinder 1 of a sheet-fed or rotary intaglio 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 clamped on the forme cylinder is folded with both End 4 is hooked at an acute angle.
  • a plate 7 is placed over the two end sections 6 of the intaglio printing plate, which is elastically attached to the underside of a box-shaped retaining strip 8 by means of rubber or spring washers 30 and is elastically bendable or shaped according to the contour of the cylinder surface .
  • the retaining strip 8 is fastened to the movable cylinder housing 9 of a pneumatic working cylinder 10, the piston of which - connected to a guide rail 11 - is fixed.
  • the working cylinder is accordingly a guide and, at the same time, a drive element for the plate 7 to be moved onto the form cylinder 1 by means of the retaining strip.
  • the holder for the plate which is designed in this way, is present opposite both end faces of the form cylinder and is shown in the drawing only for one side.
  • the guide rail 11 is pivotably mounted on the axis of the forme cylinder or on an axis 12 coaxial with this and can be fixed by means of a clamp 13.
  • the axis is held in a U-shaped leg 14 which is fixed by means of a locking screw 15 on the stub shaft 16 of the forme cylinder 1.
  • a centering device 17 which consists of a pair of centering rails 19, which is also pivotably mounted on the axis 12 and can be fixed by means of a clamp 18, with recesses 20 running radially to the axis and a centering bar 21 which is accommodated therein without play and extends over the entire length of the forme cylinder, which is wedge-shaped towards the gap 5.
  • the centering bar As can be seen in FIG. 2, after the centering bar has been lowered into the gap 5 by hand, it is pressed into it by its own weight or with the aid of springs 22 supported on the two centering rails.
  • the pair of centering rails is pulled onto the gap center radius, whereby it is of course assumed that the recesses 20 serving as guides are arranged exactly on the center line of the rail, and then fixed by means of the clamps 18 by the set screws 23.
  • the pair of centering rails is thus an alignment aid for the pair of guide rails 11 arranged immediately next to it and including it. This is now pivoted into the same position as that of the pair of centering rails (FIG. 3) and is fixed with it by means of congruent holes 24 by means of pins 25, whereby the pair of guide rails in the aligned position is brought.
  • the guide rails are then fixed and the centering rails after removing the pins 25 and Relaxing the clamps 18, with the centering bar 21 being pivoted back again (FIG. 4), so that the plate 7, which is now precisely positioned, can be lowered onto the gap 5 of the forme cylinder 1 by actuating the working cylinder 10.
  • the pressure of the plate on the end sections 6 of the intaglio printing plate 3 can be adjusted such that on the one hand it is sufficient to seal the gap 5 against the pressure of the filling compound in the gap cavity, and on the other hand deformations of the pressure surfaces are avoided will.
  • the plate is deformed elastically, its curvature corresponding to that of the forme cylinder surface.
  • each guide rail is provided with an additional guide 32 which extends radially with respect to the forme cylinder axis, into which the centering bar can be inserted via a lateral outlet 33 and can be removed therefrom before the plate 7 is lowered.
  • the centering device consists of a radiation source which is aligned with the forme cylinder surface and generates a bundled light beam 34, for example from laser optics or a shadow mask 35, over which a light source 36 is arranged, the antelle of the centering bar 21 a carrier connecting the centering rails 19 or above the plate 7 is attached to the retaining bar 8.
  • a radiation source which is aligned with the forme cylinder surface and generates a bundled light beam 34, for example from laser optics or a shadow mask 35, over which a light source 36 is arranged, the antelle of the centering bar 21 a carrier connecting the centering rails 19 or above the plate 7 is attached to the retaining bar 8.
  • the latter arrangement requires that the plate 7 is transparent. This has the additional advantage that the filling process of the gap 5 and the tightness between the plate and its support surfaces can be observed.
  • a radiation source 28 for example a fluorescent tube, is pivotably held on the holding strip 8 for the plate 7 by means of a hinged holder 29. After the filling process, the radiation source extending over the entire length of the gap 5 is pivoted over the transparent plate and is thus effective towards the gap.
  • the surface which has arisen in the manner described above and connects the two end sections 6 of the gravure printing plate 3 can be used without reworking, so that the forme cylinder 1 can be removed for use in the printing press after the holder of the plate 7 has been pivoted back.

Landscapes

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

Description

Die Erfindung betrifft eine Vorrichtung zum Verschließen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a device for closing the gap between the ends of an intaglio printing plate clamped on a forme cylinder according to the preamble of patent claim 1.

Es ist bekannt, Tiefdruckplatten, bestehend aus einem dimensionsstabilen und biegsamen Träger und einer darauf aufgebrachten Druckschicht, auf einen Formzylinder einer Bogen- oder Rotationstiefdruckmaschine 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 - wie beispielsweise in den Patentanmeldungen DE-A-30 49 143 und DE-A-32 21 206 beschrieben. 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, z. B. eine Platte, mittels eines Druckstücks abgedeckt wurde (Patentanmeldungen DE-A-2545618 und DE-A-33 08 807). Im Bereich der Plattenenden entsteht dadurch zwar eine durchgehende gleichmäßige Oberfläche ohne Erhebungen und Vertiefungen, eine exakte Fortführung der Formzylinderoberfläche ist jedock nicht gewährleistet. Sie hängt von der genauen Positionierung der Platte in Bezug auf den Spalt ab.It is known to clamp gravure printing plates, consisting of a dimensionally stable and flexible support and a printing layer applied thereon, onto a forme cylinder of a sheet-fed or rotary gravure 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 - as for example in patent applications DE-A-30 49 143 and DE-A-32 21 206. 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 this has previously been through a sheet, e.g. B. a plate was covered by a pressure piece (patent applications DE-A-2545618 and DE-A-33 08 807). In the area of the plate ends, this creates a continuous, uniform surface without elevations and depressions, but an exact continuation of the surface of the forme cylinder is not guaranteed. It depends on the exact positioning of the plate in relation to the gap.

Dementsprechend ist es die Aufgabe vorliegender Erfindung, eine Vorrichtung zum Verschließen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte zu schaffen, bei der die den Spalt abdeckende Platte exakt auf den Spalt ausgerichtet werden kann.Accordingly, it is the object of the present invention to provide a device for closing the gap between the ends of a gravure printing plate clamped on a forme cylinder, in which the plate covering the gap can be exactly aligned with the gap.

Die erfindungsgemäße Lösung der Aufgabe besteht in einer Vorrichtung, wie sie in den Patentansprüchen gekennzeichnet ist.The achievement of the object according to the invention consists in a device as characterized in the claims.

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

  • Fig. 1 den Formzylinder mit der erfindungsgemäßen Vorrichtung zum Verschließen des Spaltes in einer Teilansicht im Längsschnitt
  • Fig. 2-4 den Formzylinder mit der Vorrichtung in Ansicht X gemäß Fig. 1 in aufeinanderfolgenden Arbeitsstellungen
  • Fig. 5-6 den Formzylinder mit der Vorrichtung zum Verschließen des Spaltes mit verschiedenen Ausführungsformen der Zentriereinrichtung.
Show it
  • Fig. 1 shows the forme cylinder with the device according to the invention for closing the gap in a partial view in longitudinal section
  • 2-4 the forme cylinder with the device in view X according to FIG. 1 in successive working positions
  • Fig. 5-6 the forme cylinder with the device for closing the gap with different embodiments of the centering device.

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 den Formzylinder aufgespannte Tiefdruckplatte 3 mit beiden umgekanteten Enden 4 unter spitzem Winkel eingehängt ist. Zum Verschließen des Spaltes 5 zwischen den beiden Enden wird eine die beiden Endabschnitte 6 der Tiefdruckplatte übergreifende Platte 7 aufgelegt, die an der Unterseite einer Kastenförmigen Halteleiste 8 mittels Gummi- oder Federringen 30 elastisch befestigt ist und elastisch biegbar oder entsprechend der Kontur der Zylinderoberfläche geformt ist.As can be seen in FIGS. 1 and 2, the forme cylinder 1 of a sheet-fed or rotary intaglio 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 clamped on the forme cylinder is folded with both End 4 is hooked at an acute angle. To close the gap 5 between the two ends, a plate 7 is placed over the two end sections 6 of the intaglio printing plate, which is elastically attached to the underside of a box-shaped retaining strip 8 by means of rubber or spring washers 30 and is elastically bendable or shaped according to the contour of the cylinder surface .

Die Halteleiste 8 ist am beweglichen Zylindergehäuse 9 eines pneumatischen Arbeitszylinders 10 befestigt, dessen Kolben - verbunden mit einer Führungsschiene 11 - feststeht. Der Arbeitszylinder ist dementsprechend Führung und zugleich Antriebsorgan für die auf den Formzylinder 1 mittels der Halteleiste zu fahrenden Platte 7. Die derartig gestaltete Halterung für die Platte ist gegenüber beiden Stirnseiten des Formzylinders vorhanden und in der Zeichnung nur für eine Seite dargestellt.The retaining strip 8 is fastened to the movable cylinder housing 9 of a pneumatic working cylinder 10, the piston of which - connected to a guide rail 11 - is fixed. The working cylinder is accordingly a guide and, at the same time, a drive element for the plate 7 to be moved onto the form cylinder 1 by means of the retaining strip. The holder for the plate, which is designed in this way, is present opposite both end faces of the form cylinder and is shown in the drawing only for one side.

Zum Positionieren der Platte 7 bezüglich des abzudeckenden Spaltes 5 ist die Führungsschiene 11 auf der Achse des Formzylinders oder einer zu dieser koaxialen Achse 12 schwenkbar gelagert und mittels einer Schelle 13 feststellbar. Im in der Figur 1 dargestellten Ausführungsbeispiel ist die Achse in einem U-förmigen Schenkel 14 gehalten, der mittels einer Feststellschraube 15 auf dem Wellenstumpf 16 des Formzylinders 1 befestigt ist.To position the plate 7 with respect to the gap 5 to be covered, the guide rail 11 is pivotably mounted on the axis of the forme cylinder or on an axis 12 coaxial with this and can be fixed by means of a clamp 13. In the embodiment shown in Figure 1, the axis is held in a U-shaped leg 14 which is fixed by means of a locking screw 15 on the stub shaft 16 of the forme cylinder 1.

Vor dem Auflegen der Platte 7 auf die Formzylinderoberfläche ist diese auf den Spalt 5 auszurichten. Hierzu ist eine Zentriereinrichtung 17 vorgesehen, die aus einem ebenfalls auf der Achse 12 schwenkbar gelagerten und mittels einer Schelle 18 feststellbaren Zentrierschienenpaar 19 mit zur Achse radial verlaufenden Aussparungen 20 und einer darin spielfrei aufgenommenen, über die gesamte Länge des Formzylinders sich erstreckenden Zentrierleiste 21 besteht, die zum spalt 5 hin keilförmig ausgebildet ist. Wie in Figur 2 zu sehen, wird die Zentrierleiste, nachdem sie von Hand in den Spalt 5 abgesenkt wurde, durch ihr Eigengewicht oder mit Hilfe an den beiden Zentrierschienen abgestützter Federn 22 in diesen gedrückt. Dabei wird das Zentrierschienenpaar auf den Spaltmittenradius gezogen, wobei selbstverständlich vorausgesetzt ist, daß die als Führungen dienenden Aussparungen 20 exakt auf der Schienenmittellinie angeordnet sind, und anschließend mittels der Schellen 18 durch die Stellschrauben 23 festgestellt. Das Zentrierschienenpaar ist somit eine Ausrichthilfe für das unmittelbar daneben und dieses einschließend angeordnete Führungsschienenpaar 11. Dieses wird nun in die gleiche Position wie die des Zentrierschienenpaares geschwenkt (Figur 3) und mit diesem über deckungsgleich angebrachte Bohrungen 24 durch Stifte 25 fixiert, wodurch das Führungsschienenpaar in die ausgerichtete Stellung gebracht ist. Durch Spannen der Schellen 13 mittels der Stellschrauben 26 werden die Führungsschienen sodann festgestellt und die Zentrierschienen nach Entfernen der Stifte 25 und Entspannen der Schellen 18 unter Anheben der Zentrierleiste 21 wieder zurückgeschwenkt (Figur 4), so daß die jetzt genau positionierte Platte 7 durch Betätigen der Arbeitszylinder 10 auf den Spalt 5 des Formzylinders 1 abgesenkt werden kann. Mit Hilfe des über den Anschluß 27 dem Zylindergehäuse 9 zuzuführenden Druckmediums ist der Andruck der Platte auf die Endabschnitte 6 der Tiefdruckplatte 3 so einstellbar, daß einerseits dieser ausreicht, den Spalt 5 gegen den Druck der Füllmasse im Spalthohlraum abzudichten, und andererseits Deformationen der Andruckflächen vermieden werden. Die Platte wird dabei elastisch verformt, wobei ihre Krümmung der der Formzylinderoberfläche entspricht.Before the plate 7 is placed on the surface of the forme cylinder, it must be aligned with the gap 5. For this purpose, a centering device 17 is provided, which consists of a pair of centering rails 19, which is also pivotably mounted on the axis 12 and can be fixed by means of a clamp 18, with recesses 20 running radially to the axis and a centering bar 21 which is accommodated therein without play and extends over the entire length of the forme cylinder, which is wedge-shaped towards the gap 5. As can be seen in FIG. 2, after the centering bar has been lowered into the gap 5 by hand, it is pressed into it by its own weight or with the aid of springs 22 supported on the two centering rails. The pair of centering rails is pulled onto the gap center radius, whereby it is of course assumed that the recesses 20 serving as guides are arranged exactly on the center line of the rail, and then fixed by means of the clamps 18 by the set screws 23. The pair of centering rails is thus an alignment aid for the pair of guide rails 11 arranged immediately next to it and including it. This is now pivoted into the same position as that of the pair of centering rails (FIG. 3) and is fixed with it by means of congruent holes 24 by means of pins 25, whereby the pair of guide rails in the aligned position is brought. By tensioning the clamps 13 by means of the set screws 26, the guide rails are then fixed and the centering rails after removing the pins 25 and Relaxing the clamps 18, with the centering bar 21 being pivoted back again (FIG. 4), so that the plate 7, which is now precisely positioned, can be lowered onto the gap 5 of the forme cylinder 1 by actuating the working cylinder 10. With the help of the pressure medium to be supplied to the cylinder housing 9 via the connection 27, the pressure of the plate on the end sections 6 of the intaglio printing plate 3 can be adjusted such that on the one hand it is sufficient to seal the gap 5 against the pressure of the filling compound in the gap cavity, and on the other hand deformations of the pressure surfaces are avoided will. The plate is deformed elastically, its curvature corresponding to that of the forme cylinder surface.

In weiterer Ausgestaltung der erfindungsgemäßen Vorrichtung (Figur 5) ist die keilförmige Zentrierleiste 21 in den Führungsschienen 11 für die Halteleiste 8 geführt, so daß das Zentrierschienenpaar 19 entfallen kann. Dazu ist jede Führungsschiene mit einer zusätzlichen zur Formzylinderachse radial verlaufenden Führung 32 versehen, in die die Zentrierleiste über einen seitlichen Auslauf 33 einsetzbar und vor dem Absenken der Platte 7 daraus wieder entnehmbar ist.In a further embodiment of the device according to the invention (Figure 5), the wedge-shaped centering bar 21 is guided in the guide rails 11 for the retaining bar 8, so that the pair of centering rails 19 can be omitted. For this purpose, each guide rail is provided with an additional guide 32 which extends radially with respect to the forme cylinder axis, into which the centering bar can be inserted via a lateral outlet 33 and can be removed therefrom before the plate 7 is lowered.

Gemäß einer weiteren Ausbildung der Vorrichtung (Figur 6) besteht die Zentriereinrichtung aus einer auf die Formzylinderoberfläche ausgerichteten, einen gebündelten Lichtstrahl 34 erzeugenden Strahlenquelle, beispielsweise aus einer Laseroptik oder einer Lochmaske 35, über der eine Lichtquelle 36 angeordnet ist, die antelle der Zentrierleiste 21 an einem die Zentrierschienen 19 verbindenden Träger oder über der Platte 7 an der Halteleiste 8 befestigt ist. Letztere Anordnung erfordert, daß die Platte 7 transparent ist. Dadurch ist zusätzlich noch der Vorteil gegeben, daß der Füllvorgang des Spaltes 5 sowie die Dichtheit zwischen der Platte und deren Auflageflächen beobachtet werden können.According to a further embodiment of the device (FIG. 6), the centering device consists of a radiation source which is aligned with the forme cylinder surface and generates a bundled light beam 34, for example from laser optics or a shadow mask 35, over which a light source 36 is arranged, the antelle of the centering bar 21 a carrier connecting the centering rails 19 or above the plate 7 is attached to the retaining bar 8. The latter arrangement requires that the plate 7 is transparent. This has the additional advantage that the filling process of the gap 5 and the tightness between the plate and its support surfaces can be observed.

Zum Aushärten lichthärbarer Füllmaterialien ist an der Halteleiste 8 für die Platte 7 eine Strahlungsquelle 28, beispielsweise eine Leuchtstoffröhre, mittels eines angelenkten Halters 29 schwenkbar gehalten. Nach dem Füllvorgang wird die über die gesamte Länge des Spaltes 5 sich erstreckende Strahlungsquelle über die transparente Platte geschwenkt und damit zum Spalt hin wirksam.For curing light-curable filling materials, a radiation source 28, for example a fluorescent tube, is pivotably held on the holding strip 8 for the plate 7 by means of a hinged holder 29. After the filling process, the radiation source extending over the entire length of the gap 5 is pivoted over the transparent plate and is thus effective towards the gap.

Die auf die vorstehend beschriebene Weise entstandene, die beiden Endabschnitte 6 der Tiefdruckplatte 3 verbindende Fläche ist ohne Nachbearbeitung einsetzbar, so daß der Formzylinder 1 nach Zurückschwenken der Halterung der Platte 7 zum Einsatz in der Druckmaschine entnommen werden kann.The surface which has arisen in the manner described above and connects the two end sections 6 of the gravure printing plate 3 can be used without reworking, so that the forme cylinder 1 can be removed for use in the printing press after the holder of the plate 7 has been pivoted back.

Claims (7)

1. Apparatus for closing the gap between the ends of a gravure printing plate clamped on a forme cylinder, comprising a plate (7) which covers the gap (5) and means for filling the gap cavity with a plastic and, curable material, wherein, for positioning the plate provided for the plate (7) exactly in relation to the gap (5), a holder which is rotatable in the region of the gap is the holder consisting of a pair of guide rails (11) which are rotatably mounted on the axle (12) of the forme cylinder (1) and can be fixed, and which possess guides which run radially with respect to the axle and are intended for accepting a holding bar (8) to whose lower side the plate is elastically fastened and which can be moved toward the forme cylinder manually or by means of a drive (10), and a centering means (17) is provided for the holder, which means can be aligned with the gap.
2. Apparatus as claimed in claim 1, wherein the plate (7) covering the gap (5) is transparent.
3. Apparatus as claimed in either of claims 1 and 2, wherein the centering means consists of a radiation source which is located above the transparent plate (7) and directed toward the forme cylinder surface.
4. Apparatus as claimed in either of claims 1 and 2, wherein the centering means consists of a centering bar (21) which can be inserted into guides (20) in the guide rails (11) and can be moved therein, and which has a cross-section which is wedge-shaped toward the gap (5).
5. Apparatus as claimed in claim 1, wherein the centering means consists of a pair of centering rails (19) which are likewise rotatably mounted on the axle (12) of the forme cylinder (1) directly adjacent to the pair of guide rails (11) and which can be fixed and possess guides (20) which also run radially with respect to the axle and in which a centering bar (21) which is wedge-shaped toward the gap (5) can be moved therein under its own weight or by means of spring force, thereby adjusting the pair of rails (19) to the radius corresponding to the middle of the gap, and the pair of centering rails subsequently to be fixed and the pair of guide rails to be swiveled over these can be fixed to one another through superimposed holes (24) by means of one pin (25) in each case in order to center the pair of guide rails, and can then be detached from one another once again by removing the pin to permit the pair of centering rails to be swung back.
6. Apparatus as claimed in any of claims 1, 2 and 5, wherein the pair of centering rails (19), instead of being provided with the.guides (20) and the wedge-shaped centering bar (21), is equipped with a radiation source (36) directed toward the forme cylinder surface.
7. Apparatus as claimed in any of claims 1 to 6, wherein a radiation source (28) which is effective toward the gap cavity and extends along its entire length is rotatably held on the holding bar (8) for the plate (7).
EP85100234A 1984-01-18 1985-01-11 Device for closing the gap between the ends of an intaglio plate attached to a forme cylinder Expired EP0151397B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3401501 1984-01-18
DE19843401501 DE3401501A1 (en) 1984-01-18 1984-01-18 DEVICE FOR CLOSING THE GAP BETWEEN THE ENDS OF A PRINTING PLATE CLAMPED ON A FORM CYLINDER

Publications (3)

Publication Number Publication Date
EP0151397A2 EP0151397A2 (en) 1985-08-14
EP0151397A3 EP0151397A3 (en) 1987-08-19
EP0151397B1 true EP0151397B1 (en) 1989-10-11

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EP85100234A Expired EP0151397B1 (en) 1984-01-18 1985-01-11 Device for closing the gap between the ends of an intaglio plate attached to a forme cylinder

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US (1) US4569286A (en)
EP (1) EP0151397B1 (en)
JP (1) JPS60232959A (en)
DE (2) DE3401501A1 (en)

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DE3727115A1 (en) * 1987-08-14 1989-02-23 Basf Ag DEVICE FOR CLOSING THE GAP BETWEEN THE ENDS OF A PRINTING PLATE CLAMPED ON A FORM CYLINDER
US4825558A (en) * 1987-09-14 1989-05-02 Adflex Corporation Pin bar for mounting flexographic printing plates
JP2517890Y2 (en) * 1990-10-16 1996-11-20 日本鋼管継手株式会社 Conversion joint between resin pipe and metal pipe
US5410961A (en) 1992-12-30 1995-05-02 Fit Group, Inc. Fountain assembly
US5701823A (en) * 1997-01-27 1997-12-30 Morris; Jerry L. Self aligning tool for registering rotary printing plates and method of registering plates
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GB367436A (en) * 1930-11-20 1932-02-22 Leslie Thomas Albert Robinson Improvements in or relating to printing cylinders
US3353481A (en) * 1962-06-08 1967-11-21 Potter Instrument Co Inc High speed printer drum with print plate mounting means
DE1273377B (en) * 1963-10-26 1968-07-18 Haegglund & Soener Ab Device for the rotatable attachment of a weapon turret
US3358598A (en) * 1966-01-27 1967-12-19 Middleton John O'brien Method of mounting plates to printing machine cylinders
US4031838A (en) * 1970-11-14 1977-06-28 Blohm & Voss Ag Modular interchangeable weapons sub-assembly system for warships
DE2545618A1 (en) * 1975-10-11 1977-04-21 Frankenthal Ag Albert Gravure printing forme cylinder with magnetically mounted plate - whose plate engaging grooves are filled with epoxy, polyester or acrylic resin
US4343011A (en) * 1980-03-17 1982-08-03 Thomas M. Murray Facsimile apparatus
US4515378A (en) * 1984-05-17 1985-05-07 Dixon Industries Corporation Double cup sealing member for double action piston pump

Also Published As

Publication number Publication date
JPH0442987B2 (en) 1992-07-15
US4569286A (en) 1986-02-11
EP0151397A3 (en) 1987-08-19
JPS60232959A (en) 1985-11-19
DE3573560D1 (en) 1989-11-16
DE3401501A1 (en) 1985-07-25
EP0151397A2 (en) 1985-08-14

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