EP0768177A1 - Method and device for attaching and tensioning printing plates with bent edges - Google Patents

Method and device for attaching and tensioning printing plates with bent edges Download PDF

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Publication number
EP0768177A1
EP0768177A1 EP96115768A EP96115768A EP0768177A1 EP 0768177 A1 EP0768177 A1 EP 0768177A1 EP 96115768 A EP96115768 A EP 96115768A EP 96115768 A EP96115768 A EP 96115768A EP 0768177 A1 EP0768177 A1 EP 0768177A1
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EP
European Patent Office
Prior art keywords
plate cylinder
nose
support surface
lug
hook
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
EP96115768A
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German (de)
French (fr)
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EP0768177B1 (en
Inventor
Claus Dieter Barrois
Georg Johann Lindner
Hans-Jürgen Zelfel
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
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Publication date
Application filed by Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0768177A1 publication Critical patent/EP0768177A1/en
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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
    • B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever

Definitions

  • the invention relates to a method and a device for fastening and tensioning printing plates with folded ends on a plate cylinder of a rotary printing press according to the preambles of claims 1 and 3.
  • EP 01 24 008 A2 describes a forme cylinder with a device for clamping flexible printing plates with clamping means for folded ends of a printing plate. These clamping devices are arranged in a pit and designed as a triangular segment body with a hanging edge, the outer surface of which covers the pit gap in the tensioned state of the pressure plate and corresponds to the contour of the forme cylinder.
  • DE 33 00 678 C2, DE 44 20 314 A1, DE 80 34 630 U1 and EP 0 132 532 B1 disclose devices for fastening and tensioning printing plates with bent ends on a plate cylinder of a rotary printing press.
  • the invention has for its object to provide a method and an apparatus for fastening and tensioning printing plates with folded ends on a plate cylinder of a rotary printing press.
  • the device according to the invention also makes it possible to overprint a hanging nose during the printing process.
  • the device according to the invention ensures a spit-free mounting of the hanging nose. Pressure disturbances due to movements of the hooking nose are avoided.
  • a molding compound of a bearing of a clamping spindle is free of forces in the clamping state.
  • the device according to the invention is shown in the drawing and is described in more detail below.
  • a plate cylinder 1 of a rotary printing press has a left and right hooking nose 2, 3, which are each formed by the outer and inner surfaces 4, 6, 7, 8.
  • the respective outer surface 4, 6 includes with the inner surface 7, 8 an acute angle alpha of 45 °, for example, and is adapted to a curvature of a contour 9 of the plate cylinder 1.
  • hook-in lugs 2, 3 run parallel to an axis of rotation 5 of the plate cylinder 1 and are delimited on their outer surface 4, 6 by the contour 9 of the plate cylinder 1.
  • a channel 11 runs axially, for example with a U-shaped cross section.
  • a seal 12 for. B. a round cord inserted.
  • a pressure plate 13 or a carrier plate of a rubber blanket is hooked into the hook-in lugs 2, 3 with its bent ends 14, 16. Folded legs 17, 18 of these ends also enclose with the pressure plate an opening angle alpha of, for example, 45 °, which is adapted to the hook-in lugs 2, 3.
  • the left hanging lug 2 is molded directly into the plate cylinder 1, while the right hanging lug 3 is pivotally arranged, for example, on a clamping spindle 19. It is also possible to make both hook-in lugs 2, 3 pivotable. In a tensioned state, the tensioning spindle 19 continuously continues the contour 9 of the plate cylinder 1 with the hanging nose 3.
  • a support surface 23 adapted to this surface 22 is integrally formed on the plate cylinder 1 in the direction of its interior 21.
  • This surface 22 approximately opposite a support surface 24 is arranged on an underside of a tip of the hanging lug 3, for which a support surface 26 is also provided which is directly molded onto the interior 21 of the plate cylinder 1.
  • the two support surfaces 23, 26 do not run parallel and preferably form an angle delta of 15 ° to 30 °, that is to say the two support surfaces 23, 26 are tapered toward one another.
  • the clamping spindle 19 is pivotally mounted in a cylindrical pit 27 in a hardened, shell-shaped molding compound 28 about its axis of rotation 20.
  • the pivoting movement for tensioning and releasing the pressure plate 13 is generated by means of a worm gear 29 arranged at an end face of the tensioning spindle 19.
  • This self-locking worm gear 29 consists essentially of a toothed segment 31, a first worm 32, a worm wheel 33 and a second worm 34.
  • the first worm 32 is fastened together with the worm wheel 33 on a rotatably mounted shaft 36.
  • This shaft 36 is arranged at right angles to the clamping spindle 19 on one end face of the plate cylinder 1 in two bearings 37, 38.
  • the worm 32 of this shaft 36 engages in the toothed segment 31 of the clamping spindle 19 which is fastened on the end face, while the worm wheel 33 meshes with the second worm 34.
  • the second screw 34 is provided in the present embodiment with a hexagon 39 to initiate a rotary movement, but there are also other actuators, for. B. stepper motors, possible. Instead of the worm gear 29, other drives for generating the pivoting movement are also possible.
  • the operation of the device according to the invention is as follows:
  • the pressure plate 13 is first with its folded end 14 in the fixed hanging lug 2 at the beginning of the print and z. B. after one revolution with its end 16 hooked into the open, that is to say pivoted outward hooking nose 3 at the end of the print.
  • a tool engaging the hexagon 39 is now rotated on the second worm 34, so that this rotary movement is transmitted to the shaft 36 and finally to the toothed segment 31.
  • the clamping spindle 19 pivots about its axis of rotation 20 with the hook-in nose 3 in the direction of the interior 21 of the plate cylinder 1 and clamps the pressure plate 13.
  • the contact surface 24 of the hook-in nose 3 rests on the support surface 26.
  • a torque is now introduced into the clamping spindle 19 by means of the worm gear 29.
  • the bearing surface 24 is pressed onto the support surface 26 and forms a new pivot axis 41.
  • the clamping spindle 19 is now lifted off the molding compound 28 about this new pivot axis 41, moved outward in the direction of the contour 6 and pressed with its surface 22 against the support surface 23 of the plate cylinder 1. A clear, splinter-free position of the clamping spindle 19 and the hook-in nose 3 is thus achieved. This second pivoting movement takes place within a play between the clamping spindle 19 and the molding compound 28.
  • the hook-in nose 3 can only be supported at its ends in the axial direction in two bearing rings.
  • the inside diameter of the bearing rings is somewhat larger than the outside diameter of the clamping spindle 19 stored therein.
  • a bearing is provided as a positive guide, which brings the bearing surface 24 of the hooking lug 3 into contact with the support surface 26 of the plate cylinder 1.
  • Hanging nose 3 and plate cylinder 1 are with surfaces 22, 24; 23; 26 provided which form a positive guidance. Due to this positive guidance, the hook-in nose 3 is pressed without play out of the channel 11 in the direction of the contour 6 against the plate cylinder 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The mechanism secures a printing plate (13) with bent-over edges (14,16) to the cylinder (1), having an axial lug (3) pivoting on a first axis (20). Two surfaces (22,24) on the lug work against supporting surfaces (23,26) on the cylinder. A mechanism (29) exerts torque on the lug, and a bearing (28) brings the faces (24,26) into contact. The lug also pivots outwards on a second axis formed by these faces, pressing the faces (22,23) against each other. The lug can be fixed to a clamping spindle (19) working in a mass of hardening material.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Befestigen und Spannen von Druckplatten mit abgekanteten Enden auf einem Plattenzylinder einer Rotationsdruckmaschine gemäß den Oberbegriffen der Ansprüche 1 und 3.The invention relates to a method and a device for fastening and tensioning printing plates with folded ends on a plate cylinder of a rotary printing press according to the preambles of claims 1 and 3.

Die EP 01 24 008 A2 beschreibt einen Formzylinder mit einer Einrichtung zum Aufspannen von biegsamen Druckplatten mit Spannmitteln für abgekantete Enden einer Druckplatte. Diese Spannmittel sind in einer Grube angeordnet und als dreieckförmige Segmentkörper mit einer Einhängekante ausgebildet, deren äußere Fläche im gespannten Zustand der Druckplatte den Grubenspalt abdeckt und der Kontur des Formzylinders entspricht.EP 01 24 008 A2 describes a forme cylinder with a device for clamping flexible printing plates with clamping means for folded ends of a printing plate. These clamping devices are arranged in a pit and designed as a triangular segment body with a hanging edge, the outer surface of which covers the pit gap in the tensioned state of the pressure plate and corresponds to the contour of the forme cylinder.

Durch die DE 33 00 678 C2, DE 44 20 314 A1, DE 80 34 630 U1 und die EP 0 132 532 B1 sind Vorrichtungen zum Befestigen und Spannen von Druckplatten mit abgekanteten Enden auf einem Plattenzylinder einer Rotationsdruckmaschine bekannt.DE 33 00 678 C2, DE 44 20 314 A1, DE 80 34 630 U1 and EP 0 132 532 B1 disclose devices for fastening and tensioning printing plates with bent ends on a plate cylinder of a rotary printing press.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Befestigen und Spannen von Druckplatten mit abgekanteten Enden auf einem Plattenzylinder einer Rotationsdruckmaschine zu schaffen.The invention has for its object to provide a method and an apparatus for fastening and tensioning printing plates with folded ends on a plate cylinder of a rotary printing press.

Diese Aufgabe wird durch die Merkmale der kennzeichnenden Teile der Ansprüche 1 und 3 gelöst.This object is achieved by the features of the characterizing parts of claims 1 and 3.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß mit der erfindungsgemäßen Vorrichtung auch ein Überdrucken einer Einhängenase während des Druckvorganges möglich ist. Durch die erfindungsgemäße Vorrichtung wird eine spietfreie Lagerung der Einhängenase gewährleistet. Druckstörungen infolge Bewegungen der Einhängenase werden vermieden. Eine Formmasse einer Lagerung einer Spannspindel ist im Spannendzustand frei von Kräften.The advantages that can be achieved with the invention exist in particular in that the device according to the invention also makes it possible to overprint a hanging nose during the printing process. The device according to the invention ensures a spit-free mounting of the hanging nose. Pressure disturbances due to movements of the hooking nose are avoided. A molding compound of a bearing of a clamping spindle is free of forces in the clamping state.

Die erfindungsgemäße Vorrichtung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.The device according to the invention is shown in the drawing and is described in more detail below.

Es zeigen

Fig. 1
eine schematische Darstellung der erfindungsgemäßen Vorrichtung in Einhängestellung;
Fig. 2
eine schematische Darstellung der erfindungsgemäßen Vorrichtung in Spannendstellung.
Show it
Fig. 1
a schematic representation of the device according to the invention in the hanging position;
Fig. 2
is a schematic representation of the device according to the invention in the clamping position.

Ein Plattenzylinder 1 einer Rotationsdruckmaschine weist eine linke und rechte Einhängenase 2, 3 auf, die jeweils von Außen- und Innenfläche 4, 6, 7, 8 gebildet werden. Die jeweilige Außenfläche 4, 6 schließt mit der Innenfläche 7, 8 einen spitzwinkligen Öffnungswinkel Alpha von beispielsweise 45° ein und ist an eine Krümmung einer Kontur 9 des Plattenzylinders 1 angepaßt.A plate cylinder 1 of a rotary printing press has a left and right hooking nose 2, 3, which are each formed by the outer and inner surfaces 4, 6, 7, 8. The respective outer surface 4, 6 includes with the inner surface 7, 8 an acute angle alpha of 45 °, for example, and is adapted to a curvature of a contour 9 of the plate cylinder 1.

Diese Einhängenasen 2, 3 verlaufen parallel zu einer Drehachse 5 des Plattenzylinders 1 und werden an ihrer Außenfläche 4, 6 von der Kontur 9 des Plattenzylinders 1 begrenzt. Unterhalb der beiden Einhängenasen 2, 3 verläuft ein Kanal 11 axial mit beispielsweise U-förmigen Querschnitt. In diesem Kanal 11 ist eine Dichtung 12, z. B. eine Rundschnur, eingelegt. Eine Druckplatte 13 oder eine Trägerplatte eines Gummituches ist mit ihren abgekanteten Enden 14, 16 in die Einhängenasen 2, 3 eingehängt. Abgekantete Schenkel 17, 18 dieser Enden schließen mit der Druckplatte ebenfalls einen Öffnungswinkel Alpha von beispielsweise 45° ein, der auf die Einhängenasen 2, 3 angepaßt ist. Die linke Einhängenase 2 ist direkt in den Plattenzylinder 1 eingeformt, während die rechte Einhängenase 3 schwenkbar beispielsweise an einer Spannspindel 19 angeordnet ist. Es ist auch möglich beide Einhängenasen 2, 3 schwenkbar auszuführen. In einem Spannendzustand setzt die Spannspindel 19 mit der Einhängenase 3 die Kontur 9 des Plattenzylinders 1 absatzlos, kontinuierlich fort.These hook-in lugs 2, 3 run parallel to an axis of rotation 5 of the plate cylinder 1 and are delimited on their outer surface 4, 6 by the contour 9 of the plate cylinder 1. Below the two hook-in lugs 2, 3, a channel 11 runs axially, for example with a U-shaped cross section. In this channel 11, a seal 12, for. B. a round cord inserted. A pressure plate 13 or a carrier plate of a rubber blanket is hooked into the hook-in lugs 2, 3 with its bent ends 14, 16. Folded legs 17, 18 of these ends also enclose with the pressure plate an opening angle alpha of, for example, 45 °, which is adapted to the hook-in lugs 2, 3. The left hanging lug 2 is molded directly into the plate cylinder 1, while the right hanging lug 3 is pivotally arranged, for example, on a clamping spindle 19. It is also possible to make both hook-in lugs 2, 3 pivotable. In a tensioned state, the tensioning spindle 19 continuously continues the contour 9 of the plate cylinder 1 with the hanging nose 3.

An die Außenfläche 6 der Einhängenase 3 schließt sich in Richtung Inneres 21 des Plattenzylinders 1 eine Fläche 22 an, die mit der Außenfläche 6 einen Öffnungswinkel Beta, z. B. Beta = 150°, einschließt. Eine auf diese Fläche 22 angepaßte Abstützfläche 23 ist an dem Plattenzylinder 1 in Richtung seines Inneren 21 angeformt. Dieser Fläche 22 annähernd gegenüberliegend ist an einer Unterseite einer Spitze der Einhängenase 3 eine Auflagefläche 24 angeordnet, für die ebenfalls eine an dem Inneren 21 des Plattenzylinders 1 direkt angeformte Abstützfläche 26 vorgesehen ist. Die beiden Abstützflächen 23, 26 verlaufen nicht parallel und schließen vorzugsweise einen Winkel Delta von 15° bis 30° ein, d. h. die beiden Abstützflächen 23, 26 sind nach außen verjüngend zueinander angeordnet. Die Spannspindel 19 ist in einer Zylindergrube 27 in einer gehärteten, schalenförmig ausgebildeten Formmasse 28 schwenkbar um ihre Drehachse 20 gelagert. Die Schwenkbewegung zum Spannen und Entspannen der Druckplatte 13 wird mittels eines an einem stirnseitigen Ende der Spannspindel 19 angeordneten Schneckengetriebes 29 erzeugt. Dieses selbsthemmende Schneckengetriebe 29 besteht im wesentlichen aus einem Zahnsegment 31, einer ersten Schnecke 32, einem Schneckenrad 33 und einer zweiten Schnecke 34. Die erste Schnecke 32 ist gemeinsam mit dem Schneckenrad 33 auf einer drehbar gelagerten Welle 36 befestigt. Diese Welle 36 ist rechtwinklig zur Spannspindel 19 an einer Stirnseite des Plattenzylinders 1 in zwei Lagerungen 37, 38 angeordnet. Die Schnecke 32 dieser Welle 36 greift in das stirnseitig befestigte Zahnsegment 31 der Spannspindel 19 ein, während das Schneckenrad 33 mit der zweiten Schnecke 34 kämmt. Die zweite Schnecke 34 ist im vorliegenden Ausführungsbeispiel mit einem Sechskant 39 zur Einleitung einer Drehbewegung versehen, aber es sind auch andere Stellantriebe, z. B. Schrittmotoren, möglich. Anstelle des Schneckengetriebes 29 sind auch andere Antriebe zur Erzeugung der Schwenkbewegung möglich.On the outer surface 6 of the hook-in nose 3, a surface 22 adjoins the interior 21 of the plate cylinder 1, which with the outer surface 6 has an opening angle Beta, e.g. B. Beta = 150 °. A support surface 23 adapted to this surface 22 is integrally formed on the plate cylinder 1 in the direction of its interior 21. This surface 22 approximately opposite a support surface 24 is arranged on an underside of a tip of the hanging lug 3, for which a support surface 26 is also provided which is directly molded onto the interior 21 of the plate cylinder 1. The two support surfaces 23, 26 do not run parallel and preferably form an angle delta of 15 ° to 30 °, that is to say the two support surfaces 23, 26 are tapered toward one another. The clamping spindle 19 is pivotally mounted in a cylindrical pit 27 in a hardened, shell-shaped molding compound 28 about its axis of rotation 20. The pivoting movement for tensioning and releasing the pressure plate 13 is generated by means of a worm gear 29 arranged at an end face of the tensioning spindle 19. This self-locking worm gear 29 consists essentially of a toothed segment 31, a first worm 32, a worm wheel 33 and a second worm 34. The first worm 32 is fastened together with the worm wheel 33 on a rotatably mounted shaft 36. This shaft 36 is arranged at right angles to the clamping spindle 19 on one end face of the plate cylinder 1 in two bearings 37, 38. The worm 32 of this shaft 36 engages in the toothed segment 31 of the clamping spindle 19 which is fastened on the end face, while the worm wheel 33 meshes with the second worm 34. The second screw 34 is provided in the present embodiment with a hexagon 39 to initiate a rotary movement, but there are also other actuators, for. B. stepper motors, possible. Instead of the worm gear 29, other drives for generating the pivoting movement are also possible.

Die Funktionsweise der erfindungsgemäßen Vorrichtung ist folgendermaßen:
Die Druckplatte 13 wird mit ihrem abgekanteten Ende 14 zuerst in die feststehende Einhängenase 2 am Druckanfang und z. B. nach einer Umdrehung mit ihrem Ende 16 in die geöffnete, d. h. nach außen geschwenkte Einhängenase 3 am Druckende eingehängt. Es ist aber auch möglich die feststehende Einhängenase 2 am Druckende und die schwenkbare Einhängenase 3 am Druckanfang anzuordnen und somit auch eine Drehrichtungsumkehr des Plattenzylinders 1 zu ermöglichen.The operation of the device according to the invention is as follows:
The pressure plate 13 is first with its folded end 14 in the fixed hanging lug 2 at the beginning of the print and z. B. after one revolution with its end 16 hooked into the open, that is to say pivoted outward hooking nose 3 at the end of the print. However, it is also possible to arrange the fixed hook-in lug 2 at the end of the print and the pivotable hook-in lug 3 at the start of the print and thus also enable the direction of rotation of the plate cylinder 1 to be reversed.

Mittel eines an dem Sechskant 39 angreifenden Werkzeuges wird nun an der zweiten Schnecke 34 gedreht, so daß diese Drehbewegung auf die Welle 36 und schließlich auf das Zahnsegment 31 übertragen wird. Dadurch schwenkt die Spannspindel 19 um ihre Drehachse 20 mit der Einhängenase 3 in Richtung Inneres 21 des Plattenzylinders 1 und spannt die Druckplatte 13. Nachdem der Spannendzustand nahezu erreicht ist, liegt die Auflagefläche 24 der Einhängenase 3 auf der Abstützfläche 26 auf. Über diese Stellung hinaus wird nun mittels des Schneckengetriebes 29 ein Drehmoment in die Spannspindel 19 eingeleitet. Dadurch wird die Auflagefläche 24 auf die Abstützfläche 26 gepreßt und bildet eine neue Schwenkachse 41. Um diese neue Schwenkachse 41 wird nun die Spannspindel 19 von der Formmasse 28 abgehoben, nach außen in Richtung Kontur 6 bewegt und mit ihrer Fläche 22 gegen die Abstützfläche 23 des Plattenzylinders 1 gedrückt. Somit ist eine eindeutige, splelfreie Position der Spannspindel 19 und der Einhängenase 3 erreicht. Diese zweite Schwenkbewegung erfolgt innerhalb eines Spiels zwischen Spannspindel 19 und Formmasse 28.A tool engaging the hexagon 39 is now rotated on the second worm 34, so that this rotary movement is transmitted to the shaft 36 and finally to the toothed segment 31. As a result, the clamping spindle 19 pivots about its axis of rotation 20 with the hook-in nose 3 in the direction of the interior 21 of the plate cylinder 1 and clamps the pressure plate 13. After the clamping state has almost been reached, the contact surface 24 of the hook-in nose 3 rests on the support surface 26. Beyond this position, a torque is now introduced into the clamping spindle 19 by means of the worm gear 29. As a result, the bearing surface 24 is pressed onto the support surface 26 and forms a new pivot axis 41. The clamping spindle 19 is now lifted off the molding compound 28 about this new pivot axis 41, moved outward in the direction of the contour 6 and pressed with its surface 22 against the support surface 23 of the plate cylinder 1. A clear, splinter-free position of the clamping spindle 19 and the hook-in nose 3 is thus achieved. This second pivoting movement takes place within a play between the clamping spindle 19 and the molding compound 28.

Anstelle der Formmasse 28 kann auch eine andere Lagerung für die Einhängenase 3 angeordnet sein. So kann beispielsweise die Einhängenase 3 nur an ihren Enden in axialer Richtung in zwei Lagerringen gelagert sein. Der Innendurchmesser der Lagerringe ist dabei etwas größer als der Außendruchmesser der darin gelagerten Spannspindel 19.Instead of the molding compound 28, another mounting for the hooking nose 3 can also be arranged. For example, the hook-in nose 3 can only be supported at its ends in the axial direction in two bearing rings. The inside diameter of the bearing rings is somewhat larger than the outside diameter of the clamping spindle 19 stored therein.

In jedem Fall ist eine Lagerung als Zwangsführung vorgesehen, die die Auflagefläche 24 der Einhängenase 3 in Kontakt mit der Abstützfläche 26 des Plattenzylinders 1 bringt.In any case, a bearing is provided as a positive guide, which brings the bearing surface 24 of the hooking lug 3 into contact with the support surface 26 of the plate cylinder 1.

Einhängenase 3 und Plattenzylinder 1 sind mit Flächen 22, 24; 23; 26 versehen, die eine Zwangsführung bilden. Durch diese Zwangsführung wird die Einhängenase 3 spielfrei aus dem Kanal 11 heraus in Richtung Kontur 6 gegen den Plattenzylinder 1 gedrückt.Hanging nose 3 and plate cylinder 1 are with surfaces 22, 24; 23; 26 provided which form a positive guidance. Due to this positive guidance, the hook-in nose 3 is pressed without play out of the channel 11 in the direction of the contour 6 against the plate cylinder 1.

TeilelisteParts list

11
PlattenzylinderPlate cylinder
22nd
Einhängenase, linkeHanging nose, left
33rd
Einhängenase, rechteHanging nose, right
44th
Außenfläche (2)Outside surface (2)
55
Drehachse (1)Axis of rotation (1)
66
Außenfläche (3)Outside (3)
77
Innenfläche (2)Inner surface (2)
88th
Innenfläche (3)Inner surface (3)
99
Konturcontour
1010th
--
1111
Kanalchannel
1212th
Dichtungpoetry
1313
Druckplatteprinting plate
1414
Ende, abgekantet (13)Bevelled end (13)
1515
--
1616
Ende, abgekantet (13)Bevelled end (13)
1717th
Schenkel (14)Thigh (14)
1818th
Schenkel (16)Thigh (16)
1919th
SpannspindelClamping spindle
2020th
Drehachse (19)Axis of rotation (19)
2121
Inneres (11)Interior (11)
2222
Fläche (19)Surface (19)
2323
Abstützfläche (1)Support surface (1)
2424th
Auflagefläche (3)Contact surface (3)
2525th
--
2626
Abstützfläche (1)Support surface (1)
2727
Zylindergrube (1)Cylinder pit (1)
2828
FormmasseMolding compound
2929
SchneckengetriebesWorm gear
3030th
--
3131
ZahnsegmentTooth segment
3232
Schnecke, ersteSnail, first
3333
Zahnradgear
3434
Schnecke, zweiteSnail, second
3535
--
3636
Wellewave
3737
Lagerungstorage
3838
Lagerungstorage
3939
SechskantHexagon
4040
--
4141
SchwenkachseSwivel axis
Alphaalpha
Öffnungswinkel der Einhängenasen (2; 3)Opening angle of the hook-in lugs (2; 3)
Betabeta
Öffnungswinkel (6, 22)Opening angle (6, 22)
Deltadelta
Winkel (23, 26)Angle (23, 26)

Claims (7)

Verfahren zum Befestigen und Spannen von Druckplatten (13) mit abgekanteten Enden (14; 16) auf einem Plattenzylinder (1) einer Rotationsdruckmaschine mittels einer um eine erste Drehachse (20) schwenkbaren, sich axial erstreckenden Einhängenase (3), dadurch gekennzeichnet, daß eine Auflagefläche (24) der Einhängenase (3) in Kontakt mit einer Abstützfläche (26) des Plattenzylinders (1) gebracht wird und eine Fläche (22) der Einhängenase (3) gegen die Abstützfläche (23) des Plattenzylinders (1) gepreßt wird, so daß die Fläche (22) und die Auflagefläche (24) der Einhängenase (1) spielfrei zwischen den Abstützflächen (23; 26) des Plattenzylinders (1) geführt werden.Method for fastening and tensioning printing plates (13) with bent ends (14; 16) on a plate cylinder (1) of a rotary printing press by means of an axially extending hanging nose (3) which can be pivoted about a first axis of rotation (20), characterized in that a Contact surface (24) of the hooking lug (3) is brought into contact with a support surface (26) of the plate cylinder (1) and a surface (22) of the hooking lug (3) is pressed against the support surface (23) of the plate cylinder (1), so that the surface (22) and the bearing surface (24) of the hanging lug (1) are guided without play between the support surfaces (23; 26) of the plate cylinder (1). Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Einhängenase (3) nach außen in Richtung Kontur (6) um eine sich durch Auflagefläche (24) und Abstützfläche (26) bildende zweite Schwenkachse (41) geschwenkt wirdMethod according to claim 1, characterized in that the hook-in nose (3) is pivoted outwards in the direction of the contour (6) about a second pivot axis (41) formed by the support surface (24) and the support surface (26) Vorrichtung zum Befestigen und Spannen von Druckplatten (13) mit abgekanteten Enden (14; 16) auf einem Plattenzylinder (1) einer Rotationsdruckmaschine mittels einer um eine erste Drehachse (20) schwenkbaren, sich axial erstreckenden Einhängenase (3), dadurch gekennzeichnet, daß an der Einhängenase (3) eine Fläche (22) und eine Auflagefläche (24) vorgesehen sind, daß an dem Plattenzylinder (1) zwei mit diesen zusammenwirkende Abstützflächen (23; 26) angeordnet sind, daß an der Einhängenase (3) Mittel (29) zum Einleiten eines Drehmomentes derart angeordnet sind, daß die Einhängenase (3) nach außen in Richtung Kontur (6) um eine sich durch Auflagefläche (24) und Abstützfläche (26) bildende zweite Schwenkachse (41) schwenkt und die Fläche (22) gegen die Abstützfläche (23) gepreßt wird.Device for fastening and tensioning printing plates (13) with bent ends (14; 16) on a plate cylinder (1) of a rotary printing press by means of an axially extending hanging nose (3) which can be pivoted about a first axis of rotation (20), characterized in that the hooking nose (3) has a surface (22) and a support surface (24) that are provided the plate cylinder (1) has two supporting surfaces (23; 26) which cooperate with it, that means (29) for introducing a torque are arranged on the hook-in nose (3) in such a way that the hook-in nose (3) outwards in the direction of the contour (6 ) pivots about a second pivot axis (41) formed by the support surface (24) and support surface (26) and the surface (22) is pressed against the support surface (23). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einhängenase (3) an einer schwenkbaren Spannspindel (19) befestigt ist und diese Spannspindel (19) in einer aushärtbaren Formmasse (28) gelagert ist.Apparatus according to claim 1, characterized in that the hooking lug (3) is fastened to a pivotable clamping spindle (19) and this clamping spindle (19) is mounted in a hardenable molding compound (28). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Fläche (22) und die Auflagefläche (24) bzw. die beiden Abstützflächen (23; 26) zueinander nach außen verjüngend angeordnet sind.Device according to claim 1, characterized in that the surface (22) and the support surface (24) or the two support surfaces (23; 26) are arranged to taper towards one another. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß als Mittel (29) zum Einleiten des Drehmomentes ein selbsthemmendes Schneckengetriebe (29) vorgesehen ist.Device according to claim 1, characterized in that a self-locking worm gear (29) is provided as means (29) for introducing the torque. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Außenfläche (4; 6) der Einhängenase (2; 3) in einem Spannendzustand eine Kontur (9) des Plattenzylinders (1) aufweist.Device according to claim 1, characterized in that an outer surface (4; 6) of the hook-in nose (2; 3) has a contour (9) of the plate cylinder (1) in a tensioned state.
EP96115768A 1995-10-07 1996-10-02 Device for attaching and tensioning printing plates with bent edges Expired - Lifetime EP0768177B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537420A DE19537420C1 (en) 1995-10-07 1995-10-07 Device for fastening and tensioning printing plates with bent ends
DE19537420 1995-10-07

Publications (2)

Publication Number Publication Date
EP0768177A1 true EP0768177A1 (en) 1997-04-16
EP0768177B1 EP0768177B1 (en) 1999-04-21

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EP96115768A Expired - Lifetime EP0768177B1 (en) 1995-10-07 1996-10-02 Device for attaching and tensioning printing plates with bent edges

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US (1) US5749299A (en)
EP (1) EP0768177B1 (en)
JP (1) JP2918103B2 (en)
DE (2) DE19537420C1 (en)

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DE19922021A1 (en) * 1999-05-12 2000-11-23 Zirkon Druckmaschinen Gmbh Printing plate and rubbercloth fixing and tensioning device, with tensioning unit having control device
DE10208262A1 (en) * 2002-02-26 2003-09-04 Roland Man Druckmasch Device for fastening a covering on a printing unit cylinder
DE102004008723A1 (en) * 2004-02-23 2005-09-15 Man Roland Druckmaschinen Ag Printing cylinder with a clamping channel
DE102004042342B4 (en) * 2004-09-01 2008-02-14 Maschinenfabrik Wifag Clamping device for a clamping channel of a cylinder body, printing forme cylinder and method of manufacture
JP2009023313A (en) * 2007-07-24 2009-02-05 Tokyo Kikai Seisakusho Ltd Printing plate mounting apparatus
JP2009160927A (en) 2007-12-13 2009-07-23 Komori Corp Mounting apparatus of blanket or plate
JP2023537731A (en) * 2020-08-06 2023-09-05 クレイン アンド カンパニー、 インコーポレイテッド Improved packing and fronting tensioning mechanism and method
CN112562291B (en) * 2020-12-01 2022-04-26 朱列长 Alarm device for electronic information laboratory with suspension structure convenient to disassemble and assemble

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GB514118A (en) * 1938-04-27 1939-10-31 Ernest Arthur Timson Improvements in or relating to printing cylinders
US2409536A (en) * 1943-02-16 1946-10-15 Hoe & Co R Printing cylinder blanket securing mechanism
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DE4222332A1 (en) * 1992-07-08 1994-01-13 Heidelberger Druckmasch Ag Device for fastening and changing the position of a cylinder lift

Also Published As

Publication number Publication date
DE19537420C1 (en) 1997-03-13
DE59601700D1 (en) 1999-05-27
EP0768177B1 (en) 1999-04-21
US5749299A (en) 1998-05-12
JPH09123405A (en) 1997-05-13
JP2918103B2 (en) 1999-07-12

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