DE3434642C1 - Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines - Google Patents

Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines

Info

Publication number
DE3434642C1
DE3434642C1 DE19843434642 DE3434642A DE3434642C1 DE 3434642 C1 DE3434642 C1 DE 3434642C1 DE 19843434642 DE19843434642 DE 19843434642 DE 3434642 A DE3434642 A DE 3434642A DE 3434642 C1 DE3434642 C1 DE 3434642C1
Authority
DE
Germany
Prior art keywords
cylinder
printing
clamping
pit
printing unit
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
DE19843434642
Other languages
German (de)
Inventor
Hans-Jürgen Dipl.-Ing. 8900 Augsburg Kittsteiner
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to DE19843434642 priority Critical patent/DE3434642C1/en
Application granted granted Critical
Publication of DE3434642C1 publication Critical patent/DE3434642C1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/12Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/125Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end on a curvilinear path, e.g. by winding on a roll

Landscapes

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

Abstract

To avoid jolts when rolling over adjacent printing unit cylinders, webs are provided in the cylinder gap which are covered with cylinder coating material. Located between the gaps are openings in the attachment channel in the form of interruptions into which attachment straps separated from one another by cutouts can be introduced.

Description

Durch die erfindungsgemäße Verwendung der Stege 10 erhält der Druckwerkzylinder 1 zusätzlich eine höhere Steifigkeit. Durch den erfindungsgemäß erreichten konstanten Rollradius des Druckwerkzylinders 1 können beim Abrollen zweier benachbarter Zylinder nunmehr keine Stöße entstehen, die bekanntlich ursächlich sind für im Druckbild bemerkbare, sogenannte Druckstreifen. The inventive use of the webs 10 gives the printing unit cylinder 1 also has a higher rigidity. By the constant achieved according to the invention The rolling radius of the printing unit cylinder 1 can be used when two adjacent cylinders roll now there are no shocks that are known to be the cause of the print image noticeable, so-called pressure marks.

Claims (11)

Patentanspruch: Stoßfreie Druckplatten- und Gummituchspannvorrichtung an Druckwerkzylindern von Rotationsdruckmaschinen mit einer in Achsrichtung des Druckwerkzylinders verlaufenden, nicht durchgehenden Zylindergrube, dadurch gekennz e i c h n e t, daß in der sich in Achsrichtung erstrekkenden Zylindergrube (7) abwechselnd an die kreiszylindrische Mantelkontur des Druckwerkzylinders (1) sich anschließende Stege (10) aus Vollmaterial und Spannkanalöffnungen (11) angeordnet sind, in der Weise, daß das aufzuspannende Gummituch oder die Druckplatte (2) mit seinen bzw. ihren an den beiden Enden vorgesehenen Spannlaschen (3, 4), die entsprechend den Stegen (10) durch Ausnehmungen (5, 6) voneinander getrennt sind, in die Spannkanalöffnungen (11) einführbar sind und von den in der Zylindergrube (7) angeordneten Spannmitteln (8, 9) aufnehmbar sind, daß die Stege (10) mit Zylinderauflagematerial (2') belegt sind und daß die Spannlaschen (3, 4) in Achsrichtung der Zylindergrube (7) gesehen, um ein Vielfaches breiter als die Ausnehmungen (5, 6) sind. Claim: Seamless printing plate and blanket tensioning device on printing unit cylinders of rotary printing machines with one in the axial direction of the Printing unit cylinder running, not continuous cylinder pit, thereby marked e i c h n e t that in the axial direction extending cylinder pit (7) alternately adjoining the circular cylindrical jacket contour of the printing unit cylinder (1) Web (10) made of solid material and clamping channel openings (11) are arranged in the Way that the blanket or the pressure plate (2) to be stretched with its or their clamping straps (3, 4) provided at both ends, which correspond to the Web (10) are separated from one another by recesses (5, 6), in the clamping channel openings (11) can be inserted and from the clamping means arranged in the cylinder pit (7) (8, 9) can be received so that the webs (10) are covered with cylinder support material (2 ') and that the clamping straps (3, 4) seen in the axial direction of the cylinder pit (7), are many times wider than the recesses (5, 6). Die Erfindung betrifft eine stoßfreie Druckplatten-und Gummituchspannvorrichtung an Druckwerkzylindern von Rotationsdruckmaschinen mit einer in Achsrichtung des Druckwerkzylinders verlaufenden, nicht durchgehenden Zylindergrube. The invention relates to a shock-free printing plate and blanket tensioning device on printing unit cylinders of rotary printing machines with one in the axial direction of the Printing unit cylinder running, not continuous cylinder pit. Aus der DE-PS 6 09 099 ist bereits eine stoßfreie Spannvorrichtung der vorangehend definierten Art bekannt. Bei dieser werden zwei Grubeneinsatzleisten verwendet, die an der gemeinsamen Stoßstelle mit kammartig ineinandergreifenden Fingern versehen sind. From DE-PS 6 09 099 is already a shock-free jig known of the type defined above. In this case, two pit insert strips are used used that at the common joint with a comb-like interlocking Fingers are provided. Eine dieser Schienen ist beweglich, während die andere fest angeordnet ist. Bei dieser bekannten Vorrichtung werden durch die verzahnte Anordnung der erwähnten Leisten zwar Zylinderschwingungen und -stöße beim Überlauf der Zylindergrube vermieden, jedoch ist diese Vorrichtung wegen der erforderlichen Vielzahl von Teilen und Stellmitteln aufwendig und teuer.One of these rails is movable, while the other is fixed is. In this known device are due to the toothed arrangement of the mentioned Although cylinder vibrations and shocks are avoided when the cylinder pit overflows, however, this device is because of the multitude of parts and actuators required complex and expensive. Aufgabe der Erfindung ist es, eine Spannvorrichtung der eingangs definierten Gattung zu schaffen, bei der keine zusätzlichen beweglichen Bauteile zur Vermeidung von Zylinderstößen in der Grube benötigt werden. The object of the invention is to provide a clamping device of the initially mentioned to create a defined category with no additional moving components are required to avoid cylinder bumps in the pit. Diese Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Teils des Patentanspruchs gelöst. Aus der DE-PS 6 33 984 ist zwar bereits bekannt, Zylinderaufzüge für eine Bogenrotationstiefdruckmaschine mit kammartig ineinandergreifenden Laschen an den Enden zu versehen, die in zwei voneinander beabstandeten Lochreihen eingeführt werden. Durch die beiden Lochreihen geht Zylinderumfang verloren, der somit nicht für den Druck zur Verfügung steht Die Figuren zeigen F i g. 1 eine Draufsicht auf die erfindungsgemäße Zylindergrube, F i g. 2 einen Schnitt entlang der Linie II-II nach Fig. 1, Fig.3 einen Schnitt entlang der Linie III-III nach Fig. 1 und Fig.4 eine Druckplatte oder ein Gummituch zum Aufspannen auf die Vorrichtung gemäß F i g. 1 bis 3.This task is accomplished by applying the characteristics of the characteristic Part of the claim solved. From DE-PS 6 33 984 it is already known Cylinder lifts for a sheet-fed rotogravure printing machine with comb-like interlocking To provide tabs at the ends in two spaced rows of holes to be introduced. The cylinder circumference is lost due to the two rows of holes is therefore not available for printing. The figures show F i g. 1 is a plan view on the cylinder pit according to the invention, FIG. 2 shows a section along the line II-II according to FIG. 1, FIG. 3 shows a section along the line III-III according to FIG. 1 and 4 shows a printing plate or a rubber blanket for clamping onto the device according to FIG F i g. 1 to 3. Der dargestellte Druckwerkzylinder 1 kann ein Gummituchzylinder oder ein Formzylinder sein, auf dem ein in Fig.4 dargestelltes Gummituch 2 oder an dessen Stelle eine in gleicher Weise ausgebildete Druckplatte aufgespannt werden kann. Hierfür weist das Gummituch bzw. die Druckplatte 2 jeweils an den Enden Spannlaschen 3,4 auf, die durch verhältnismäßig schmale Ausnehmungen 5,6 voneinander getrennt sind. The illustrated printing unit cylinder 1 can be a blanket cylinder or be a forme cylinder on which a blanket 2 shown in Figure 4 or on its Place a pressure plate designed in the same way can be clamped. For this purpose, the rubber blanket or the pressure plate 2 has clamping tabs at each end 3.4 on, which are separated from each other by relatively narrow recesses 5.6 are. Die Enden des Gummituches bzw der Druckplatte 2 werden in die sich in Achsrichtung des Druckwerkzylinders 1 erstreckende Zylindergrube 7 eingeführt. In dieser befinden sich herkömmliche Spannmittel, beispielsweise in Form von Spannspindeln 8, 9. The ends of the blanket or the printing plate 2 are in the In the axial direction of the printing unit cylinder 1 extending cylinder pit 7 introduced. This contains conventional clamping devices, for example in the form of clamping spindles 8, 9. Wie besonders aus F i g. 1 ersichtlich ist, umfaßt die Zylindergrube 7 voneinander beabstandete Stege, die sich an die kreiszylindrische Mantelkontur des Druckwerkzylinders 1 anschließen, d. h. sich in Höhe dessen Zylindermantels befinden. As is particularly evident from FIG. 1 can be seen, includes the cylinder pit 7 spaced apart webs, which are attached to the circular cylindrical jacket contour of the printing unit cylinder 1, d. H. at the height of the cylinder jacket are located. In Achsrichtung gesehen können die Stege 10 verhältnismäßig schmal sein, verglichen mit den sich jeweils zwischen diesen befindlichen Spannkanalöffnungen bzw. Durchbrüchen Viewed in the axial direction, the webs 10 can be relatively narrow compared to the clamping channel openings located between them or breakthroughs 11. Die Durchbrüche 11 sind zur Aufnahme der Spannlaschen 3,4 des Gummituches bzw.11. The openings 11 are for receiving the clamping straps 3, 4 of the blanket or der Druckplatte 2 vorgesehen. Infolge der in der Zylindergrube 7 angeordneten Stege 10 aus Vollmaterial ist es nicht möglich, Gummitücher bzw. Druckplatten 2 mit einer durchgehenden Kante an den Enden zu verwenden, weshalb die bereits erwähnten Ausnehmungen 5, 6 vorgesehen sind, die in ihrer Breite auf die Stege 10 in der Zylindergrube 7 abgestimmt sind. Die in die Spannkanalöffnungen bzw. Durchbrüche 11 einführbaren Spannlaschen 3, 4 sind in die nicht näher bezeichneten Schlitze der Spannspindeln 8, 9 einführbar, so daß das Gummituch bzw. die Druckplatte 2 in herkömmlicher Weise gespannt werden können.the pressure plate 2 is provided. As a result of the arranged in the cylinder pit 7 Web 10 made of solid material, it is not possible to use rubber blankets or printing plates 2 to use with a continuous edge at the ends, which is why the ones already mentioned Recesses 5, 6 are provided, the width of which on the webs 10 in the cylinder pit 7 are matched. The insertable into the clamping channel openings or breakthroughs 11 Clamping straps 3, 4 are in the unspecified slots of the clamping spindles 8, 9 insertable so that the blanket or the printing plate 2 in a conventional manner can be tensioned. Vorzugsweise sind die in der Mantelkontui des Druckwerkzylinders 1 liegenden Stege 10 mit einem Zylinderauflagematerial versehen, das bei 2' angedeutet ist. Dieses Zylinderauflagematerial 2' ist dickenmäßig so dimensioniert, daß der gesamte Mantel des Druckwerkzylinders 1 stoßfrei ist. They are preferably in the jacket contour of the printing unit cylinder 1 lying webs 10 provided with a cylinder support material, which is indicated at 2 ' is. This cylinder pad material 2 'is dimensioned in terms of thickness so that the entire jacket of the printing unit cylinder 1 is shock-free.
DE19843434642 1984-09-21 1984-09-21 Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines Expired DE3434642C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843434642 DE3434642C1 (en) 1984-09-21 1984-09-21 Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843434642 DE3434642C1 (en) 1984-09-21 1984-09-21 Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines

Publications (1)

Publication Number Publication Date
DE3434642C1 true DE3434642C1 (en) 1986-06-19

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ID=6245946

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843434642 Expired DE3434642C1 (en) 1984-09-21 1984-09-21 Jolt-free device for attaching printing plates and rubber blankets to printing unit cylinders of rotary printing machines

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DE (1) DE3434642C1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540581A1 (en) * 1985-11-15 1987-05-21 Roland Man Druckmasch PRINTING CYLINDER WITH A FILLING PIECE IN ITS CYLINDER PIT
DE3644501A1 (en) * 1986-12-24 1988-07-07 Koenig & Bauer Ag SUPPORT IN A CYLINDER PIT
DE4427945C1 (en) * 1994-08-06 1995-11-02 Koenig & Bauer Ag Flexible plate with bent ends for mounting on a cylinder of a rotary printing press
EP0699531A1 (en) 1994-08-06 1996-03-06 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Device for mounting flexible plates with bent edges on a cylinder of a rotary printing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE609099C (en) * 1930-03-10 1935-02-07 Angelo Dagnino Fixing and clamping device for flexible printing plates on the forme cylinder of rotogravure printing machines
DE633984C (en) * 1936-08-13 Koenig & Bauer Schnellpressfab Impression cylinder lift for sheet-fed rotogravure printing machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE633984C (en) * 1936-08-13 Koenig & Bauer Schnellpressfab Impression cylinder lift for sheet-fed rotogravure printing machines
DE609099C (en) * 1930-03-10 1935-02-07 Angelo Dagnino Fixing and clamping device for flexible printing plates on the forme cylinder of rotogravure printing machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540581A1 (en) * 1985-11-15 1987-05-21 Roland Man Druckmasch PRINTING CYLINDER WITH A FILLING PIECE IN ITS CYLINDER PIT
DE3644501A1 (en) * 1986-12-24 1988-07-07 Koenig & Bauer Ag SUPPORT IN A CYLINDER PIT
US4790245A (en) * 1986-12-24 1988-12-13 Koenig & Bauer Aktiengesellschaft Support assembly for a cylinder groove
DE4427945C1 (en) * 1994-08-06 1995-11-02 Koenig & Bauer Ag Flexible plate with bent ends for mounting on a cylinder of a rotary printing press
EP0697286A1 (en) 1994-08-06 1996-02-21 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Flexible plate with bent edges for mounting on a cylinder of a rotary printing machine
EP0699531A1 (en) 1994-08-06 1996-03-06 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Device for mounting flexible plates with bent edges on a cylinder of a rotary printing machine
EP0699531B1 (en) * 1994-08-06 2001-04-04 Koenig & Bauer Aktiengesellschaft Device for mounting flexible plates with bent edges on a cylinder of a rotary printing machine

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8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee