EP0304646A2 - Device for affixing a flexible printing plate to the printing cylinder of a rotary printing press - Google Patents

Device for affixing a flexible printing plate to the printing cylinder of a rotary printing press Download PDF

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Publication number
EP0304646A2
EP0304646A2 EP88112012A EP88112012A EP0304646A2 EP 0304646 A2 EP0304646 A2 EP 0304646A2 EP 88112012 A EP88112012 A EP 88112012A EP 88112012 A EP88112012 A EP 88112012A EP 0304646 A2 EP0304646 A2 EP 0304646A2
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EP
European Patent Office
Prior art keywords
clamping
plate
tensioning
cylinder
bar
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
EP88112012A
Other languages
German (de)
French (fr)
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EP0304646B1 (en
EP0304646A3 (en
Inventor
Willi Jeschke
Lothar Stadler
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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
Priority claimed from DE19873728263 external-priority patent/DE3728263A1/en
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0304646A2 publication Critical patent/EP0304646A2/en
Publication of EP0304646A3 publication Critical patent/EP0304646A3/en
Application granted granted Critical
Publication of EP0304646B1 publication Critical patent/EP0304646B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Definitions

  • the invention relates to a device for clamping flexible printing plates on the plate cylinder of rotary printing presses with clamping rails for clamping the printing plate, which are assigned to the two plate ends and are supported on the side walls of a cylinder channel, a one-piece clamping rail being provided for the trailing plate end a clamp for the plate end is arranged in its central area, and means for stretching or compressing the plate end in the axial direction of the plate cylinder are provided in the outer area of the tensioning rails, according to P 36 06 351.7.
  • the object of the present invention is to improve a device for clamping flexible printing plates on the plate cylinder so that the stretching or upsetting of the trailing plate end can be carried out in a simple manner, the means used enabling precise and precise control and being so designed that a remote adjustment is made possible while the machine is running.
  • clamping bars are mounted on the trailing rail on both sides in the outer region to be longitudinally displaceable, with one on the The tensioning rail and the tensioning bar mounted eccentric bolts for longitudinally displacing the tensioning bar, which cooperates with an adjusting means, and that clamping rams are displaceably guided on the tensioning bar, which are moved by means of eccentric tensioning bolts which are mounted in the tensioning bar and press the end of the plate against a clamping surface on the tensioning bar and clamp.
  • the proposed clamping strips, on which the plate end is clamped, can be adjusted very precisely and with a high actuating force axially via the eccentric bolt, so that the plate end can be stretched or compressed very precisely using a remote control.
  • the sub-claim characterizes an advantageous embodiment of the invention, wherein a mechanical or electrical actuation of the actuating means is also possible.
  • FIG. 1 of a plate cylinder 1 of a sheetfed offset printing press carries in a known manner a flexible printing plate 2 which is stretched over clamping means.
  • a cylinder channel 3 which extends over the length of the cylinder body of the plate cylinder 1, serves to receive the clamping means.
  • the leading plate end 4 and the trailing end Plate ends 5 are angled in a bending device in register.
  • the leading plate end 4 is suspended for tensioning on a tensioning rail 6 and held by a spring 7.
  • Dowel pins 8 are used for the exact alignment of the front and rear plate ends 4, 5.
  • the plate cylinder is rotated by one turn to place the pressure plate 2, so that the trailing plate end 5 can also be hung on a tensioning rail 9 .
  • the pressure plate 2 is clamped on the plate cylinder 1 by means of compression springs 13, so that the two clamping rails 6 and 9 are pivoted into the position shown in FIG.
  • the two plate ends 4 and 5 are under a cover plate 14, which prevents them from sliding out.
  • a clamping punch 10 is provided which can be adjusted and clamped to the angled area of the trailing plate end 5 by means of tensioning eccentric 11, which is supported on a bearing 12 on the tensioning rail 9 . This ensures that the trailing plate end 5 is fixed in the middle in the circumferential direction and laterally.
  • 1, 2, 4 and 5 show the clamping bars 15 provided on both sides on the tensioning rail 9 in the outer region, which are mounted so as to be longitudinally displaceable relative to the tensioning rail 9.
  • a guide groove 16 is provided, into which a guide pin 17 engages, the tensioning bar 15 being slidably held in a recess 19 of the tensioning rail 9 by a cover plate 18.
  • an eccentric bolt 20 is provided, which is mounted in the area of the clamping bar 15 pointing towards the center of the cylinder via a needle bearing 21.
  • the two eccentric pins 22 of the eccentric bolt 20 are mounted in bearing bodies 23, 24, which in turn are fastened to the tensioning rail 9.
  • a fork lever 25 is used to turn the eccentric bolt 20 and, according to FIG. 3, is actuated by a hydraulic cylinder 26 as an adjusting means.
  • a piston 27 is provided in the hydraulic cylinder 26 and, as soon as a pressure medium is supplied via the pressure line 28, pivots the fork lever 25 via a roller 29 (shown in FIG. 3, 4).
  • a clamping punch 32 is displaceably guided in a holder 33 on the clamping bar 15.
  • An eccentric clamping bolt 34 which is mounted on the clamping bar 15 by means of a bearing 35, enables the plate end 5 to be clamped by turning to a clamping surface 36, which is also provided on the clamping bar 15.
  • the clamping punch 32 and the eccentric clamping bolt 34 are held by means of a cover 37.
  • Two compression springs 38 in the holder 33 serve to move the clamping plunger 32 back in order to facilitate the insertion of the plate end 5.
  • the fork lever 25 and thus the eccentric bolt 20 can be rotated via the hydraulic cylinder 26.
  • the clamping bar 15 is moved in the longitudinal direction, so that the plate end 5 is stretched by the jamming between the clamping punch 32 and the clamping surface 36 when moving outward. Moving towards the center of the cylinder enables the end of the pressure plate to be compressed.
  • the amount of stretching or compression of the trailing plate end depends on the required correction of the printed image. Usually this correction is made evenly on both sides of the printing plate by a small amount.

Landscapes

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

Abstract

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufspannen von biegsamen Druckplatten (2) auf den Plattenzylinder (1) von Rotationsdruckmaschinen mit Spannschienen (6, 9) zum Spannen der Druckplatte (2), die den beiden Plattenenden (4, 5) zugeordnet und an den Seitenwänden eines Zylinderkanals (3) abgestützt sind, wobei für das nachlaufende Plattenende (5) eine einteilige Spannschiene (9) vorgesehen ist, auf der in ihrem mittleren Bereich ein Klemmstempel (10) für das Plattenende (5) angeordnet ist, und im äußeren Bereich der Spannschiene (9) Mittel zum Strecken oder Stauchen des Plattenendes (5) in Achsrichtung des Plattenzylinders (1) vorgesehen sind, die als längsverschiebbare Spannleisten (15) ausgebildet und mittels Exzenterbolzen (20) verschiebbar sind.The invention relates to a device for clamping flexible printing plates (2) on the plate cylinder (1) of rotary printing machines with clamping rails (6, 9) for clamping the printing plate (2), which are assigned to the two plate ends (4, 5) and on the side walls of a cylinder channel (3) are supported, a one-piece clamping rail (9) being provided for the trailing plate end (5), on which a clamping stamp (10) for the plate end (5) is arranged in its central region, and in the outer region Area of the tensioning rail (9) means for stretching or upsetting the plate end (5) in the axial direction of the plate cylinder (1) are provided, which are designed as longitudinally displaceable tensioning strips (15) and can be displaced by means of eccentric bolts (20).

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufspannen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen zum Spannen der Druckplatte, die den beiden Plattenenden zugeordnet und an den Seitenwänden eines Zylinderkanals abgestützt sind, wobei für das nachlaufende Plattenende eine einteilige Spannschiene vorgesehen ist, auf der in ihrem mittleren Bereich ein Klemmstempel für das Plattenende angeordnet ist, und im äußeren Bereich der Spannschienen Mittel zum Strecken oder Stauchen des Plattenendes in Achsrichtung des Plattenzylinders vorgesehen sind, gemäß P 36 06 351.7.The invention relates to a device for clamping flexible printing plates on the plate cylinder of rotary printing presses with clamping rails for clamping the printing plate, which are assigned to the two plate ends and are supported on the side walls of a cylinder channel, a one-piece clamping rail being provided for the trailing plate end a clamp for the plate end is arranged in its central area, and means for stretching or compressing the plate end in the axial direction of the plate cylinder are provided in the outer area of the tensioning rails, according to P 36 06 351.7.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zum Aufspannen von biegsamen Druckplatten auf dem Plattenzylinder so zu verbessern, daß das Strecken oder Stauchen des nachlaufenden Plattenendes auf einfache Weise durchgeführt werden kann, wobei die verwendeten Mittel eine genaue und präzise Steuerung ermöglichen und so ausgelegt sind, daß auch eine fernbetätigte Verstellung während des Maschinenlaufs ermöglicht wird.The object of the present invention is to improve a device for clamping flexible printing plates on the plate cylinder so that the stretching or upsetting of the trailing plate end can be carried out in a simple manner, the means used enabling precise and precise control and being so designed that a remote adjustment is made possible while the machine is running.

Gemäß dem Kennzeichen des Anspruchs 1 wird die Aufgabe dadurch gelöst, daß auf der nachlaufenden Spannschiene auf beiden Seiten im äußeren Bereich Spannleisten längsverschiebbar gelagert sind, mit einem an der Spannschiene und der Spannleiste gelagerten Exzenterbolzen zum Längsverschieben der Spannleiste, der mit einem Stellmittel zusammenwirkt, und daß an der Spannleiste Klemmstempel verschiebbar geführt sind, die mittels Exzenterspannbolzen, die in der Spannleiste gelagert sind, verschoben werden und das Plattenende gegen eine Klemmfläche an der Spannleiste andrücken und festklemmen.According to the characterizing part of claim 1, the object is achieved in that clamping bars are mounted on the trailing rail on both sides in the outer region to be longitudinally displaceable, with one on the The tensioning rail and the tensioning bar mounted eccentric bolts for longitudinally displacing the tensioning bar, which cooperates with an adjusting means, and that clamping rams are displaceably guided on the tensioning bar, which are moved by means of eccentric tensioning bolts which are mounted in the tensioning bar and press the end of the plate against a clamping surface on the tensioning bar and clamp.

Die vorgeschlagenen Spannleisten, an denen das Plattenende festgeklemmt ist, lassen sich über den Exzenterbolzen sehr präzise und mit hoher Stellkraft axial verstellen, so daß über eine Fernbedienung das Plattenende sehr präzise gestreckt oder gestaucht werden kann.The proposed clamping strips, on which the plate end is clamped, can be adjusted very precisely and with a high actuating force axially via the eccentric bolt, so that the plate end can be stretched or compressed very precisely using a remote control.

Der Unteranspruch kennzeichnet eine vorteilhafte Ausgestaltung der Erfindung, wobei auch eine mechanische oder elektrische Betätigung der Stellmittel möglich ist.The sub-claim characterizes an advantageous embodiment of the invention, wherein a mechanical or electrical actuation of the actuating means is also possible.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt. Es zeigt:

  • Fig. 1 einen Teilquerschnitt durch die erfindungsgemäße Vorrichtung gemäß Schnitt 1-1 in Figur 4,
  • Fig. 2 einen Teilquerschnitt gemäß 2-2 in Figur 4,
  • Fig. 3 eine Teildraufsicht auf das Spannmittel,
  • Fig. 4 eine Draufsicht auf die Spannvorrichtung im Plattenzylinder,
  • Fig. 5 einen Teillängsschnitt durch den Plattenzylinder.
An embodiment of the invention is shown schematically in the drawings. It shows:
  • 1 is a partial cross section through the device according to the invention according to section 1-1 in Figure 4,
  • 2 shows a partial cross section according to 2-2 in FIG. 4,
  • 3 is a partial top view of the clamping means,
  • 4 is a plan view of the clamping device in the plate cylinder,
  • Fig. 5 shows a partial longitudinal section through the plate cylinder.

Der in Figur 1 wiedergegebene Teilquerschnitt eines Plattenzylinders 1 einer Bogenoffsetdruckmaschine trägt in bekannter Weise eine biegsame Druckplatte 2, die über Spannmittel gespannt wird. Zur Aufnahme der Spannmittel dient ein Zylinderkanal 3, der sich über die Länge des Zylinderkörpers des Plattenzylinders 1 erstreckt. Das vorlaufende Plattenende 4 und das nachlaufende Plattenende 5 sind in einer Biegevorrichtung passerhaltig abgewinkelt. Das vorlaufende Plattenende 4 wird zum Spannen an einer Spannschiene 6 eingehängt und von einer Feder 7 gehalten. Zur exakten Ausrichtung des vorderen und hinteren Plattenendes 4,5 dienen Paßstifte 8. Sobald das vordere Plattenende 4 eingespannt ist, wird der Plattenzylinder zum Auflegen der Druckplatte 2 um eine Umdrehung verdreht, so daß das nachlaufende Plattenende 5 ebenfalls an einer Spannschiene 9 eingehängt werden kann. Das Festspannen der Druckplatte 2 auf dem Plattenzylinder 1 erfolgt über Druckfedern 13, so daß die beiden Spannschienen 6 und 9 in die in Figur 1 gezeigte Stellung geschwenkt sind. Hierbei befinden sich die beiden Plattenenden 4 und 5 unter einer Abdeckplatte 14, die ein Herausgleiten derselben verhindert.The partial cross section shown in FIG. 1 of a plate cylinder 1 of a sheetfed offset printing press carries in a known manner a flexible printing plate 2 which is stretched over clamping means. A cylinder channel 3, which extends over the length of the cylinder body of the plate cylinder 1, serves to receive the clamping means. The leading plate end 4 and the trailing end Plate ends 5 are angled in a bending device in register. The leading plate end 4 is suspended for tensioning on a tensioning rail 6 and held by a spring 7. Dowel pins 8 are used for the exact alignment of the front and rear plate ends 4, 5. As soon as the front plate end 4 is clamped, the plate cylinder is rotated by one turn to place the pressure plate 2, so that the trailing plate end 5 can also be hung on a tensioning rail 9 . The pressure plate 2 is clamped on the plate cylinder 1 by means of compression springs 13, so that the two clamping rails 6 and 9 are pivoted into the position shown in FIG. Here, the two plate ends 4 and 5 are under a cover plate 14, which prevents them from sliding out.

Im mittleren Bereich der nachlaufenden Spannschiene 9 ist, wie in Figur 4 wiedergegeben, ein Klemmstempel 10 vorgesehen, der mittels Spannexzenter 11, der sich an einem Lager 12 an der Spannschiene 9 abstützt, an dem abgewinkelten Bereich des nachlaufenden Plattenendes 5 anstellbar ist und dieses festklemmt. Hiermit ist gewährleistet, daß das nachlaufende Plattenende 5 in seiner Mitte in Umfangsrichtung und seitlich festgelegt ist.In the middle area of the trailing tensioning rail 9, as shown in FIG. 4, a clamping punch 10 is provided which can be adjusted and clamped to the angled area of the trailing plate end 5 by means of tensioning eccentric 11, which is supported on a bearing 12 on the tensioning rail 9 . This ensures that the trailing plate end 5 is fixed in the middle in the circumferential direction and laterally.

In Figur 1, 2, 4 und 5 sind die beiderseits auf der Spannschiene 9 im äußeren Bereich vorgesehenen Spannleisten 15 wiedergegeben, die gegenüber der Spannschiene 9 längsverschiebbar gelagert sind. Am äußeren Ende der Spannleiste 15 ist eine Führungsnut 16 vorgesehen, in die ein Führungszapfen 17 eingreift, wobei die Spannleiste 15 durch eine Abdeckplatte 18 verschiebbar in einer Ausnehmung 19 der Spannschiene 9 gehalten ist.1, 2, 4 and 5 show the clamping bars 15 provided on both sides on the tensioning rail 9 in the outer region, which are mounted so as to be longitudinally displaceable relative to the tensioning rail 9. At the outer end of the tensioning bar 15, a guide groove 16 is provided, into which a guide pin 17 engages, the tensioning bar 15 being slidably held in a recess 19 of the tensioning rail 9 by a cover plate 18.

Zum Längsverschieben der Spannleiste 15 ist ein Exzenterbolzen 20 vorgesehen, der in dem zur Mitte des Zylinders zeigenden Bereich der Spannleiste 15 über ein Nadellager 21 gelagert ist. Die beiden exzentrischen Zapfen 22 des Exzenterbolzens 20 sind in Lagerkörpern 23,24 gelagert, die wiederum an der Spannschiene 9 befestigt sind. Zum Verdrehen des Exzenterbolzens 20 dient ein Gabelhebel 25, der gemäß Figur 3 als Stellmittel von einem Hydraulikzylinder 26 betätigt wird. In dem Hydraulikzylinder 26 ist ein Kolben 27 vorgesehen, der, sobald über die Druckleitung 28 ein Druckmittel zugeführt wird, über eine Rolle 29 den Gabelhebel 25 verschwenkt (in Figur 3,4 gezeichnet). Durch genaues Dosieren des Druckmittels läßt sich eine feinfühlige und stufenlose Verschwenkung des Gabelhebels 25 und somit des Exzenterbolzens 20 durchführen, so daß die Spannleiste 15 auch um sehr geringe Beträge in Längsrichtung verschoben werden kann. Der Hydraulikzylinder 26 ist an der Spannschiene 9 befestigt. Zum Zurückziehen des Kolbens, bei Reduzierung des Druckes in der Druckleitung 28, dient eine Zugfeder 30, die an einer an der Spannleiste 15 befestigten Schraube 31 eingehängt ist.For the longitudinal displacement of the clamping bar 15, an eccentric bolt 20 is provided, which is mounted in the area of the clamping bar 15 pointing towards the center of the cylinder via a needle bearing 21. The two eccentric pins 22 of the eccentric bolt 20 are mounted in bearing bodies 23, 24, which in turn are fastened to the tensioning rail 9. A fork lever 25 is used to turn the eccentric bolt 20 and, according to FIG. 3, is actuated by a hydraulic cylinder 26 as an adjusting means. A piston 27 is provided in the hydraulic cylinder 26 and, as soon as a pressure medium is supplied via the pressure line 28, pivots the fork lever 25 via a roller 29 (shown in FIG. 3, 4). By precisely metering the pressure medium, a sensitive and stepless pivoting of the fork lever 25 and thus of the eccentric bolt 20 can be carried out, so that the clamping bar 15 can also be displaced in the longitudinal direction by very small amounts. The hydraulic cylinder 26 is attached to the tensioning rail 9. A tension spring 30, which is attached to a screw 31 fastened to the tensioning bar 15, is used to retract the piston while reducing the pressure in the pressure line 28.

Um ein Strecken oder Stauchen des nachlaufenden Plattenendes durchführen zu können, ist gemäß vorliegender Erfindung an der Spannleiste 15 ein Klemmstempel 32 in einer Halterung 33 verschiebbar geführt. Ein Exzenterspannbolzen 34, der über eine Lagerung 35 an der Spannleiste 15 gelagert ist, ermöglicht durch Verdrehen ein Festklemmen des Plattenendes 5 an einer Klemmfläche 36, die ebenfalls an der Spannleiste 15 vorgesehen ist. Der Klemmstempel 32 und der Exzenterspannbolzen 34 sind mittels einer Abdeckung 37 gehalten. Zum Zurückbewegen des Klemmstempels 32, um das Einführen des Plattenendes 5 zu erleichtern, dienen zwei Druckfedern 38 in der Halterung 33.In order to be able to stretch or compress the trailing plate end, according to the present invention, a clamping punch 32 is displaceably guided in a holder 33 on the clamping bar 15. An eccentric clamping bolt 34, which is mounted on the clamping bar 15 by means of a bearing 35, enables the plate end 5 to be clamped by turning to a clamping surface 36, which is also provided on the clamping bar 15. The clamping punch 32 and the eccentric clamping bolt 34 are held by means of a cover 37. Two compression springs 38 in the holder 33 serve to move the clamping plunger 32 back in order to facilitate the insertion of the plate end 5.

Nachdem auf beiden Seiten der Spannschiene 9 das Plattenende 5 von den Klemmstempeln 32 durch Verdrehen des Exzenterspannbolzens 34 festgeklemmt ist, läßt sich über den Hydraulikzylinder 26 der Gabelhebel 25 und somit der Exzenterbolzen 20 verdrehen. Hierdurch wird die Spannleiste 15 in Längsrichtung verschoben, so daß bei einer Bewegung nach Außen das Plattenende 5 durch die Verklemmung zwischen Klemmstempel 32 und Klemmfläche 36 gestreckt wird. Durch eine Bewegung zur Zylindermitte hin ist ein Stauchen des Druckplattenendes möglich. Der Betrag der Streckung oder Stauchung des nachlaufenden Plattenendes richtet sich nach der erforderlichen Korrektur des Druckbildes. Normalerweise wird diese Korrektur gleichmäßig auf beiden Seiten der Druckplatte um einen geringen Betrag vorgenommen. Durch die mittlere Klemmung über den Klemmstempel 10 läßt sich auch eine einseitige Verstellung der Spannleiste 15 und somit des nachlaufenden Druckplattenendes 5 durchführen.After the plate end 5 is clamped on both sides of the clamping rail 9 by the clamping punches 32 by rotating the eccentric clamping bolt 34, the fork lever 25 and thus the eccentric bolt 20 can be rotated via the hydraulic cylinder 26. As a result, the clamping bar 15 is moved in the longitudinal direction, so that the plate end 5 is stretched by the jamming between the clamping punch 32 and the clamping surface 36 when moving outward. Moving towards the center of the cylinder enables the end of the pressure plate to be compressed. The amount of stretching or compression of the trailing plate end depends on the required correction of the printed image. Usually this correction is made evenly on both sides of the printing plate by a small amount. By means of the middle clamping via the clamping ram 10, one-sided adjustment of the clamping bar 15 and thus the trailing pressure plate end 5 can also be carried out.

TEILELISTEPARTS LIST

1 Plattenzylinder
2 Druckplatte
3 Zylinderkanal
4 Plattenende
5 Plattenende
6 Spannschiene
7 Feder
8 Paßstift
9 Spannschiene
10 Klemmstempel
11 Spannexzenter
12 Lager
13 Druckfeder
14 Abdeckplatte
15 Spannleiste
16 Führungsnut
17 Führungszapfen
18 Abdeckplatte
19 Ausnehmung
20 Exzenterbolzen
21 Nadellager
22 Zapfen
23 Lagerkörper
24 Lagerkörper
25 Gabelhebel
26 Hydraulikzylinder
27 Kolben
28 Druckleitung
29 Rolle
30 Zugfeder
31 Schraube
32 Klemmstempel
33 Halterung
34 Exzenterspannbolzen
35 Lagerung
36 Klemmfläche
37 Abdeckung
38 Druckfeder
1 plate cylinder
2 pressure plate
3 cylinder channel
4 plate ends
5 plate end
6 tensioning rails
7 spring
8 dowel pin
9 tensioning rail
10 clamp stamps
11 clamping eccentrics
12 bearings
13 compression spring
14 cover plate
15 tensioning bar
16 guide groove
17 guide pins
18 cover plate
19 recess
20 eccentric bolts
21 needle bearings
22 cones
23 bearing body
24 bearing body
25 fork lever
26 hydraulic cylinders
27 pistons
28 pressure line
29 roll
30 tension spring
31 screw
32 clamp stamps
33 bracket
34 eccentric locking bolts
35 Storage
36 clamping surface
37 cover
38 compression spring

Claims (2)

1. Vorrichtung zum Aufspannen von biegsamen Druckplatten (2) auf dem Plattenzylinder (1) von Rotationsdruckmaschinen mit Spannschienen (6,9) zum Spannen der Druckplatte (2), die den beiden Plattenenden (4,5) zugeordnet und an den Seitenwänden eines Zylinderkanals (3) abgestützt sind, wobei für das nachlaufende Plattenende (5) eine einteilige Spannschiene (9) vorgesehen ist, auf der in ihrem mittleren Bereich ein Klemmstempel (10) für das Plattenende (5) angeordnet ist, und im äußeren Bereich der Spannschiene (9) Mittel zum Strecken oder Stauchen des Plattenendes in Achsrichtung des Plattenzylinders (1) vorgesehen sind, gemäß P 36 06 351.7,
dadurch gekennzeichnet,
daß auf der nachlaufenden Spannschiene (9) auf beiden Seiten im äußeren Bereich Spannleisten (15) längsverschiebbar gelagert sind, mit einem an der Spannschiene (9) und der Spannleiste (15) gelagerten Exzenterbolzen (20) zum Längsverschieben der Spannleiste (15), der mit einem Stellmittel (25,26) zusammenwirkt, und daß an der Spannleiste (15) Klemmstempel (32) verschiebbar geführt sind, die mittels Exzenterspannbolzen (34), die in der Spannleiste (15) gelagert sind, verschoben werden und das Plattenende (5) gegen eine Klemmfläche (36) an der Spannleiste (15) andrücken und festklemmen.1. Device for clamping flexible printing plates (2) on the plate cylinder (1) of rotary printing machines with clamping rails (6,9) for clamping the printing plate (2), which are assigned to the two plate ends (4,5) and on the side walls of a cylinder channel (3) are supported, a one-piece clamping rail (9) being provided for the trailing plate end (5), on which a clamping punch (10) for the plate end (5) is arranged in its central region, and in the outer region of the clamping rail ( 9) Means for stretching or upsetting the plate end in the axial direction of the plate cylinder (1) are provided, in accordance with P 36 06 351.7,
characterized,
that on the trailing tensioning rail (9) on both sides in the outer area tensioning bars (15) are mounted for longitudinal displacement, with an eccentric bolt (20) mounted on the tensioning bar (9) and the tensioning bar (15) for longitudinally displacing the tensioning bar (15), cooperates with an adjusting means (25, 26), and that clamping rams (32) are displaceably guided on the clamping bar (15), which are displaced by means of eccentric clamping bolts (34), which are mounted in the clamping bar (15), and the plate end (5 ) press against a clamping surface (36) on the clamping bar (15) and clamp. 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Exzenterbolzen (20) einen Gabelhebel (25) trägt, dem ein Stellmittel vorzugsweise ein Hydraulikzylinder (26) zugeordnet ist.2. Device according to claim 1,
characterized,
that the eccentric bolt (20) carries a fork lever (25) to which an adjusting means is preferably assigned a hydraulic cylinder (26).
EP88112012A 1987-08-25 1988-07-26 Device for affixing a flexible printing plate to the printing cylinder of a rotary printing press Expired - Lifetime EP0304646B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873728263 DE3728263A1 (en) 1986-02-27 1987-08-25 Device for attaching flexible printing formes to the forme cylinder of rotary printing machines
DE3728263 1987-08-25

Publications (3)

Publication Number Publication Date
EP0304646A2 true EP0304646A2 (en) 1989-03-01
EP0304646A3 EP0304646A3 (en) 1989-10-18
EP0304646B1 EP0304646B1 (en) 1991-11-06

Family

ID=6334402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112012A Expired - Lifetime EP0304646B1 (en) 1987-08-25 1988-07-26 Device for affixing a flexible printing plate to the printing cylinder of a rotary printing press

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Country Link
US (1) US4831931A (en)
EP (1) EP0304646B1 (en)
JP (1) JPS6482953A (en)
CN (1) CN1008161B (en)
DE (1) DE3866063D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236709A (en) * 1989-10-14 1991-04-17 Heidelberger Druckmasch Ag Printing plate deformation apparatus
DE3933678A1 (en) * 1989-10-09 1991-04-18 Miller Johannisberg Druckmasch DEVICE FOR ACCURATELY POSITIONING A PRINT PLATE ON A PRINT CYLINDER
EP0534214A1 (en) * 1991-09-20 1993-03-31 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for correcting trapezoidal register deviations

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918215C1 (en) * 1989-06-03 1990-11-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE3936459C1 (en) * 1989-11-02 1991-04-18 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3936446A1 (en) * 1989-11-02 1991-05-08 Miller Johannisberg Druckmasch PLATE CYLINDER OF A PRINTING MACHINE
US5199352A (en) * 1990-02-24 1993-04-06 Komori Corporation Plate lock-up device for printing press
DE4034494C1 (en) * 1990-10-30 1992-03-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
US5317968A (en) * 1991-11-22 1994-06-07 Shinohara Machiner Co., Ltd. Plate cocking apparatus for sheet-fed printing press
DE4210897C1 (en) * 1992-04-02 1993-08-12 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
JP2547584Y2 (en) * 1993-05-24 1997-09-10 株式会社東京機械製作所 Plate cylinder of rotary printing press
WO1994029109A1 (en) * 1993-06-16 1994-12-22 Nissha Printing Co., Ltd. Print roll and elastic form plate for print roll
US5419248A (en) * 1994-03-09 1995-05-30 Heidelberg Druckmaschinen Ag Adjustable alignment device for printing plates
US5553545A (en) * 1995-09-26 1996-09-10 Heath Custom Press, Inc. Plate clamping and tensioning apparatus for rotary printing press
DE29621906U1 (en) * 1996-12-17 1997-02-06 Heidelberger Druckmasch Ag Adjusting device for a height adjustment of diametrically opposed gripper sash bars on sheet-guiding cylinders of printing machines
DE10236865A1 (en) * 2002-08-12 2004-02-26 Koenig & Bauer Ag Print cylinder, forme cylinder or transfer cylinder for a print unit has an axial channel with a retaining device that holds the print forme in place and can be displaced along the channel be means of an actuator
DE102016201236A1 (en) * 2015-02-24 2016-08-25 Heidelberger Druckmaschinen Ag Printing press cylinder
DE102020123196A1 (en) * 2020-09-04 2022-03-10 Kolbus Gmbh & Co. Kg Device for stretching an arcuate roll cover around a roll
CN114030289B (en) * 2021-11-05 2023-04-18 江苏富台机械科技有限公司 Multi-purpose plate hanging mechanism of water-based printing machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219847A1 (en) * 1973-03-01 1974-09-27 Heidelberger Druckmasch Ag
DE2431133A1 (en) * 1974-06-28 1976-01-15 Roland Offsetmaschf PRINT PLATE CLAMPING DEVICE
DE2500282A1 (en) * 1975-01-04 1976-07-29 Karlheinz Ahlsdorf Printing plate holder for offset printing machines - has plate holding pins which are retracted by screws in clamping profile
DE3606351A1 (en) * 1986-02-27 1987-09-03 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7219684U (en) * 1974-05-30 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Device for attaching flexible printing plates
JPS57205152A (en) * 1981-06-13 1982-12-16 Komori Printing Mach Co Ltd Color register adjusting device for sheet printer
DE3228244A1 (en) * 1982-07-28 1984-02-02 Günter 8425 Neustadt Beil Clamping rail for attaching printing plates to the cylinder of printing machines
CH653616A5 (en) * 1983-07-26 1986-01-15 De La Rue Giori Sa METHOD FOR FIXING AND ADJUSTING A PRINTING PLATE ON A PLATE-HOLDING CYLINDER AND DEVICE FOR IMPLEMENTING SAME.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219847A1 (en) * 1973-03-01 1974-09-27 Heidelberger Druckmasch Ag
DE2431133A1 (en) * 1974-06-28 1976-01-15 Roland Offsetmaschf PRINT PLATE CLAMPING DEVICE
DE2500282A1 (en) * 1975-01-04 1976-07-29 Karlheinz Ahlsdorf Printing plate holder for offset printing machines - has plate holding pins which are retracted by screws in clamping profile
DE3606351A1 (en) * 1986-02-27 1987-09-03 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933678A1 (en) * 1989-10-09 1991-04-18 Miller Johannisberg Druckmasch DEVICE FOR ACCURATELY POSITIONING A PRINT PLATE ON A PRINT CYLINDER
US5259312A (en) * 1989-10-09 1993-11-09 Man Miller Druckmaschinen Gmbh Position-strict clamping of a printing plate on a printing cylinder
GB2236709A (en) * 1989-10-14 1991-04-17 Heidelberger Druckmasch Ag Printing plate deformation apparatus
GB2236709B (en) * 1989-10-14 1993-10-20 Heidelberger Druckmasch Ag Printing plate deformation apparatus
EP0534214A1 (en) * 1991-09-20 1993-03-31 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for correcting trapezoidal register deviations

Also Published As

Publication number Publication date
DE3866063D1 (en) 1991-12-12
US4831931A (en) 1989-05-23
CN1008161B (en) 1990-05-30
EP0304646B1 (en) 1991-11-06
CN1033593A (en) 1989-07-05
EP0304646A3 (en) 1989-10-18
JPS6482953A (en) 1989-03-28
JPH0528991B2 (en) 1993-04-28

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