EP0732202B1 - Cylinder with a device for tensioning a printing plate - Google Patents
Cylinder with a device for tensioning a printing plate Download PDFInfo
- Publication number
- EP0732202B1 EP0732202B1 EP96103836A EP96103836A EP0732202B1 EP 0732202 B1 EP0732202 B1 EP 0732202B1 EP 96103836 A EP96103836 A EP 96103836A EP 96103836 A EP96103836 A EP 96103836A EP 0732202 B1 EP0732202 B1 EP 0732202B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- slit
- slot
- tongues
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000002105 tongue Anatomy 0.000 claims description 26
- 238000005452 bending Methods 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 9
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 244000059549 Borneo rubber Species 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B41F27/125—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 on a curvilinear path, e.g. by winding on a roll
Definitions
- the invention relates to a cylinder with a Device for clamping plates with folded edges Ends on a cylinder of a rotary printing press according to the preamble of claim 1.
- DE 42 38 343 A1 is a clamping and Clamping device on a forme cylinder as a Foil-formed cliché became known. Both Ends of the film are narrow, axial running slot inserted in the forme cylinder and from a clamping and arranged inside the forme cylinder Clamping device held and tensioned.
- the tension and Clamping device consists of one Actuating spindle on the a number of idlers are threaded. A rotation of the tension pulleys on the Fastening spindle is only after overcoming one Slip clutch between mounting spindle and Tension rollers possible.
- the mounting spindle is on spring-mounted at both ends. This ensures that the rollers on the ends inserted into the slot of the cliché. The twist of the Actuating spindle follow the rollers and pull, - in pressed position -, the film ends in the slot inside.
- DE-OS 21 26 941 shows a plate cylinder with a device for tensioning a printing plate.
- the plate cylinder has one in a pit arranged, rotatable spindle. On this spindle is attached a pull sheet provided with a bar. One end of the pressure plate is used to hold the bar a molded hook.
- the invention has for its object a cylinder with a device for tensioning plates with folded ends on this cylinder one To create rotary printing press with the one folded end of the plate in a tight, in a Shell of the cylinder introduced slot is retractable.
- a slot that serves to accommodate bent ends is only slightly wider than twice the thickness of the plate.
- a folded end of a plate does not have to be changed in thickness in order to be gripped by the device according to the invention and drawn into the slot of the cylinder.
- the slot is only partially widened by depressions in the circumferential direction, which is why a very narrow channel is formed. This largely avoids channel impacts and the vibrations that occur as a result.
- the cylinder according to the invention is in the drawing shown and is described in more detail below.
- a cylinder 1 of a rotary printing machine for receiving flexible plates 2 with bent ends 3, 4 with at least one narrow slot 7 extending parallel to its axis of rotation and extending from a lateral surface 6 of the cylinder 1 into its interior 5.
- Legs 8, 9 are folded at the ends 3, 4.
- the leg 9 of the end 4 which runs after the end has in the present example a number of rectangular cutouts 11 arranged next to one another in the axial direction.
- the slot 7 is preferably rectangular in cross section.
- a side surface 13 of the slot 7 facing the end 4 of the plate 2 is provided with a number of U-shaped recesses 14 running parallel to this side surface 13.
- These recesses 14 each have a spring-back space 16 pointing outwards in the direction of the lateral surface 6 of the cylinder 1, so that the respective recess 14 widens in the circumferential direction of the cylinder 1 and forms a bending edge 15 at its transition.
- a bore 17 running parallel to the slot 7 is made in the cylinder 1.
- a pivot lever 18, which in the present embodiment as a spindle 18 with a radius r18, z. B. r18 15 mm, is pivotally mounted centrally.
- the grooves 22 of the spindle 18 and the recess 14 of the slot 7 of the cylinder 1 are adapted to one another.
- an axially extending slot 23 which extends radially from the lateral surface 19 into an interior of the spindle 18, is introduced.
- ends 24 of flexible, but pressure and tension-resistant tongues 26 are suspended, which in the present example as leaf springs, for.
- tongues 26 lie in the U-shaped grooves 22 of the spindle 18 and adapt to the shape of the spindle 18 in the installed state.
- a second, not connected to the spindle 18 end of the tongue 26 is formed in the direction of the leading end 3 of the plate 2 and acting in the direction of the spindle 18 barb 27.
- An outside of the barb 27 pointing in the direction of the lateral surface 6 of the cylinder 1 is provided with a bevel 28 pointing in the direction of the leading end 3 of the plate 2.
- a cam 29 pointing in the direction of the leading end 3 of the plate 2.
- the tongues 26 extend over a length l26, z. B.
- the axial position of the recesses 14 of the slot 7, the grooves 22 of the spindle 18 and the tongues 26 are adapted to one another.
- the operation of the device according to the invention is as follows: In an insertion position (FIG. 1) of the spindle 18, the barb 27 of the respective tongue 26 is located in the area of the resilience space 16 of the recesses 14, just below the lateral surface 6 of the cylinder 1. In this position, the leading, beveled end 3 of the plate is first 2 led into the slot 7. Then the leg 9 of the trailing end 4 of the plate 2, which is provided with cutouts 11 in the area of the tongues 26, is brought into the slot 7. Here, the leg 9 abuts the bevel 28 of the barbs 27 and presses them around the bending edge 15 into the spring-back space 16 of the recess 14 of the slot 7.
- the spindle 18 is rotated counterclockwise, whereby the tongues 26 pull the suspended leg 9 of the plate 2 into the slot 7. Barbs 27 and legs 9 remain in the slot 7. After the clamping process has been completed, the spindle 18 is locked in a rotationally fixed or spring-loaded manner.
- the spindle 16 in Turned clockwise, the cams 29 of the tongues 26th press against the leg 9 of the end 4 after running.
- the tongues spring as the rotation continues 27 outwards into their extended position so that the tongues 27 stand tangential to the spindle 16 and in the Depressions 14 of the slot 7 run.
- the spindle 18 is rotated until the leg 9 of the trailing end 4 completely out of the slot 7 is removed, i.e. the cams 29 of the tongues 26 are in the Area of the outer surface 6 of the cylinder 1. Das trailing end 4 of the plate 2 can from the tongue 27 be removed.
- the device according to the invention can be attached to both ends 3, 4 of the plate 2 act simultaneously or it can for each end 3, 4 may be provided with its own device.
- the slot 7 can be widened to the extent that both the bevelled ends 3, 4 and the tongues 21 are included as well as the spring-back space 16 is formed.
- the slot 7 around the Depth of the U-shaped described in the first example Wells 14 be widened and these wells 14 can then be omitted. In this case it would be Side surface 13 of the slot 7 with a the bending edge 15 forming, axially extending, bead-like or hemispherical elevation. Between one such increase and the beginning 10 of the slot 7 will thus also created a spring-back space 16.
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Description
Die Erfindung betrifft einen Zylinder mit einer Vorrichtung zum Spannen von Platten mit abgekanteten Enden auf einem Zylinder einer Rotationsdruckmaschine gemäß dem Oberbegriff des Anspruches 1.The invention relates to a cylinder with a Device for clamping plates with folded edges Ends on a cylinder of a rotary printing press according to the preamble of claim 1.
Durch die DE 42 38 343 A1 ist eine Klemm- und Spannvorrichtung auf einem Formzylinder für ein als Folie ausgebildetes Klischee bekannt geworden. Beide Enden der Folie werden hierbei in einen engen, axial verlaufenden Schlitz im Formzylinder eingeführt und von einer im Inneren des Formzylinders angeordneten Klemm- und Spannvorrichtung gehalten und gespannt. Die Spann- und Klemmvorrichtung besteht hierbei aus einer Betätigungsspindel auf die eine Anzahl von Spannrollen aufgefädelt sind. Eine Rotation der Spannrollen auf der Befestigungsspindel ist erst nach überwindung einer Rutschkupplung zwischen Befestigungsspindel und Spannrollen möglich. Die Befestigungsspindel ist an beiden Enden federnd gelagert. Hierdurch wird erreicht, daß die Rollen an die in den Schlitz eingeführten Enden des Klischees angedrückt werden. Der Verdrehung der Betätigungsspindel folgen die Rollen und ziehen, - in angedrückter Stellung -, die Folienenden in den Schlitz hinein.DE 42 38 343 A1 is a clamping and Clamping device on a forme cylinder as a Foil-formed cliché became known. Both Ends of the film are narrow, axial running slot inserted in the forme cylinder and from a clamping and arranged inside the forme cylinder Clamping device held and tensioned. The tension and Clamping device consists of one Actuating spindle on the a number of idlers are threaded. A rotation of the tension pulleys on the Fastening spindle is only after overcoming one Slip clutch between mounting spindle and Tension rollers possible. The mounting spindle is on spring-mounted at both ends. This ensures that the rollers on the ends inserted into the slot of the cliché. The twist of the Actuating spindle follow the rollers and pull, - in pressed position -, the film ends in the slot inside.
Die DE-OS 21 26 941 zeigt einen Plattenzylinder mit einer Vorrichtung zum Spannen einer Druckplatte. Hierbei weist der Plattenzylinder eine in einer Grube angeordnete, verdrehbare Spindel auf. An dieser Spindel ist ein mit einer Leiste versehenes Zugblech angebracht. Ein Ende der Druckplatte ist zur Aufnahme der Leiste mit einem angeformten Haken versehen.DE-OS 21 26 941 shows a plate cylinder with a device for tensioning a printing plate. Here the plate cylinder has one in a pit arranged, rotatable spindle. On this spindle is attached a pull sheet provided with a bar. One end of the pressure plate is used to hold the bar a molded hook.
Der Erfindung liegt die Aufgabe zugrunde, einen Zylinder mit einer Vorrichtung zum Spannen von Platten mit abgekanteten Enden auf diesem Zylinder einer Rotationsdruckmaschine zu schaffen, mit der ein abgekantetes Ende der Platte in einen engen, in eine Mantelfläche des Zylinders eingebrachten Schlitz einziehbar ist.The invention has for its object a cylinder with a device for tensioning plates with folded ends on this cylinder one To create rotary printing press with the one folded end of the plate in a tight, in a Shell of the cylinder introduced slot is retractable.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst.This object is achieved by the features of the characterizing part of claim 1 solved.
Die mit der Erfindung erzielbaren Vorteile bestehen
insbesondere darin, daß ein zur Aufnahme von
abgekanteten Enden dienender Schlitz nur etwas breiter
als eine doppelte Dicke der Platte ausgeführt ist. Ein
abgekantetes Ende einer Platte muß nicht in seiner Dicke
verändert werden, um von der erfindungsgemäßen
Vorrichtung erfaßt und in den Schlitz des Zylinders
gezogen zu werden. Der Schlitz ist nur partiell durch
Vertiefungen in Umfangsrichtung verbreitert, weswegen
ein nur sehr enger Kanal entsteht. Hierdurch werden
Kanalschläge und dadurch auftretende Schwingungen
weitgehend vermieden.
Vorteilhafterweise entfällt ein Einfädeln des Endes der
Platte in eine innerhalb der Grube liegende Spindel, das
Ende der Platte wird kontrolliert eingehängt. Hierdurch
wird die Handhabung erleichtert und die
Funktionssicherheit erhöht.The advantages that can be achieved with the invention are, in particular, that a slot that serves to accommodate bent ends is only slightly wider than twice the thickness of the plate. A folded end of a plate does not have to be changed in thickness in order to be gripped by the device according to the invention and drawn into the slot of the cylinder. The slot is only partially widened by depressions in the circumferential direction, which is why a very narrow channel is formed. This largely avoids channel impacts and the vibrations that occur as a result.
Advantageously, there is no need to thread the end of the plate into a spindle located inside the pit, and the end of the plate is hooked in in a controlled manner. This simplifies handling and increases functional reliability.
Der erfindungsgemäße Zylinder ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.The cylinder according to the invention is in the drawing shown and is described in more detail below.
Es zeigen
- Fig. 1
- einen schematischen Schnitt durch einen erfindungsgemäßen Zylinder in Einführstellung;
- Fig. 2
- einen schematischen Schnitt durch den erfindungsgemäßen Zylinder in Spannstellung;
- Fig. 3
- eine schematische Draufsicht auf einen Schlitz in einer Mantelfläche des erfindungsgemäßen Zylinders.
- Fig. 1
- a schematic section through a cylinder according to the invention in the insertion position;
- Fig. 2
- a schematic section through the cylinder according to the invention in the clamping position;
- Fig. 3
- is a schematic plan view of a slot in a lateral surface of the cylinder according to the invention.
Ein Zylinder 1 einer Rotationsdruckmaschine ist zur
Aufnahme von biegsamen Platten 2 mit abgekanteten Enden
3, 4 mit mindestens einem parallel zu seiner Drehachse
verlaufenden, sich von einer Mantelfläche 6 des
Zylinders 1 in sein Inneres 5 erstreckenden, engen
Schlitz 7 versehen.
Bei der Platte 2 mit einer Dicke d2, z. B. d2 = 0,3 mm,
handelt es sich vorzugsweise um Druckplatten oder um
Trägerplatten mit z. B. darauf befestigten Gummitüchern.
An den Enden 3, 4 sind Schenkel 8, 9 abgekantet. Der
Schenkel 9 des nach laufenden Endes 4 weist an seinem
Ende im vorliegenden Beispiel eine Anzahl von
rechteckigen, in axialer Richtung nebeneinander
angeordneten Aussparungen 11 auf.A cylinder 1 of a rotary printing machine is provided for receiving
In the
Der Schlitz 7 ist im Querschnitt vorzugsweise rechteckig
ausgebildet. Eine Breite b7 des Querschnittes des
Schlitzes 7 weist an seinem Anfang 10 etwas mehr als die
doppelte Dicke d2 der Platte 2 auf, d.h. beispielsweise
b7 = 1 mm. Der Schlitz 7 ist bezüglich einer an der
Mantelfläche 6 im Bereich des Schlitzes 7 anliegenden
Tangente 12 um einen Neigungswinkel Alpha, z. B.
Alpha = 45°, geneigt. Eine dem nach laufenden Ende 4 der
Platte 2 zugewandte Seitenfläche 13 des Schlitzes 7 ist
mit einer Anzahl von parallel zu dieser Seitenfläche 13
verlaufenden U-förmigen Vertiefungen 14 versehen. Diese
Vertiefungen 14 weisen jeweils einen nach außen in
Richtung der Mantelfläche 6 des Zylinders 1 weisenden
Rückfederraum 16 auf, so daß sich die jeweilige
Vertiefung 14 in Umfangsrichtung des Zylinders 1
erweitert und an dessen übergang eine Biegekante 15
bildet. Am Ende des Schlitzes 7 ist eine parallel zu dem
Schlitz 7 verlaufende Bohrung 17 in dem Zylinder 1
angebracht. Der Schlitz 7 tangiert die Bohrung 17, so
daß die Bohrung 17 mit dem Schlitz 7 in Verbindung
steht.
In dieser Bohrung 17 ist ein Schwenkhebel 18, der im
vorliegenden Ausführungsbeispiel als eine Spindel 18 mit
einem Radius r18, z. B. r18 = 15 mm, ausgeführt ist,
schwenkbar zentrisch gelagert. Eine Mantelfläche 19 der
Spindel 18 weist über einen Winkel Beta, z.B. Beta =
80°, bezogen auf eine Längsachse 21 der Spindel 18 in
Umfangsrichtung verlaufende U-förmige Nuten 22 mit
reduziertem Radius r22, z. B. r22 = 14,5 mm, auf. In
axialer Richtung gesehen sind die Nuten 22 der Spindel
18 und die Vertiefung 14 des Schlitzes 7 des Zylinders 1
aufeinander angepaßt. Am Ende dieser U-förmigen Nuten 22
ist ein axial verlaufender, sich radial von der
Mantelfläche 19 in ein Inneres der Spindel 18
erstreckender Schlitz 23 eingebracht. In diesem Schlitz
23 sind Enden 24 von biegeelastischen, aber druck- und
zugsteifen Zungen 26 eingehängt, die im vorliegenden
Beispiel als Blattfedern, z. B. aus Federstahl,
ausgeführt sind. Diese Zungen 26 liegen in den
U-förmigen Nuten 22 der Spindel 18 und passen sich im
eingebauten Zustand der Form der Spindel 18 an. Ein
zweites, nicht mit der Spindel 18 verbundenes Ende der
Zunge 26 ist in Richtung vorlaufendes Ende 3 der Platte
2 weisender und in Richtung Spindel 18 wirkender
Widerhaken 27 ausgebildet. Eine in Richtung Mantelfläche
6 des Zylinders 1 weisende Außenseite des Widerhakens 27
ist mit einer in Richtung vorlaufendes Ende 3 der Platte
2 weisenden Abschrägung 28 versehen. In einem Abstand a
zu dem Widerhaken 27 ist an der Zunge 26 ein in Richtung
vorlaufendes Ende 3 der Platte 2 weisender Nocken 29
angebracht. Die Zungen 26 erstrecken sich über eine
Länge l26, z. B. l26 = 25 mm, und weisen eine Dicke d26,
z. B. d26 = 0,5 mm, auf. Die axiale Lage der
Vertiefungen 14 des Schlitzes 7, der Nuten 22 der
Spindel 18 und der Zungen 26 sind aufeinander angepaßt.The
In this
Die Funktionsweise der erfindungsgemäßen Vorrichtung ist
folgendermaßen:
In einer Einführstellung (Fig. 1) der Spindel 18
befindet sich der Widerhaken 27 der jeweiligen Zunge 26
im Bereich des Rückfederraumes 16 der Vertiefungen 14
kurz unter der Mantelfläche 6 des Zylinders 1. In dieser
Stellung wird zuerst das vorlaufende, abgekantete Ende 3
der Platte 2 in den Schlitz 7 geführt. Anschließend wird
der mit Aussparungen 11 im Bereich der Zungen 26
versehene Schenkel 9 des nachlaufenden Endes 4 der
Platte 2 in den Schlitz 7 gebracht. Hierbei stößt der
Schenkel 9 gegen die Abschrägung 28 der Widerhaken 27
und drückt diese um die Biegekante 15 in den
Rückfederraum 16 der Vertiefung 14 des Schlitzes 7.
Dadurch gleitet der Schenkel 9 am Widerhaken 27 vorbei,
bis die Aussparungen 11 der Platte 2 in die Widerhaken
27 einrasten, wobei die Zungen 26 aus dem Rückfederraum
16 des Schlitzes 7 federn.
Zum Spannen der Platte 2 wird die Spindel 18 gegen den
Uhrzeigersinn verdreht, wodurch die Zungen 26 den
eingehängten Schenkel 9 der Platte 2 in den Schlitz 7
ziehen. Widerhaken 27 und Schenkel 9 bleiben dabei im
Schlitz 7. Nach abgeschlossenen Spannvorgang wird die
Spindel 18 drehfest oder gefedert arretiert.The operation of the device according to the invention is as follows:
In an insertion position (FIG. 1) of the
To tension the
Zum Entfernen der Platte 2 wird die Spindel 16 im
Uhrzeigersinn gedreht, wobei die Nocken 29 der Zungen 26
gegen den Schenkel 9 des nach laufenden Endes 4 drücken.
Im Verlauf der weiteren Drehbewegung federn die Zungen
27 nach außen in ihre Strecklage, so daß die Zungen 27
tangential bezüglich der Spindel 16 stehen und in den
Vertiefungen 14 des Schlitzes 7 verlaufen. Die Spindel
18 wird soweit verdreht bis der Schenkel 9 des
nachlaufenden Endes 4 vollständig aus dem Schlitz 7
entfernt ist, d.h. die Nocken 29 der Zungen 26 stehen im
Bereich der Mantelfläche 6 des Zylinders 1. Das
nachlaufende Ende 4 der Platte 2 kann von der Zunge 27
entfernt werden.To remove the
Die erfindungsgemäße Vorrichtung kann auf beide Enden 3,
4 der Platte 2 gleichzeitig wirken oder es kann für
jedes Ende 3, 4 eine eigene Vorrichtung vorgesehen sein. The device according to the invention can be attached to both ends 3,
4 of the
Auch kann der Schlitz 7 soweit verbreitert sein, daß
sowohl die abgekanteten Enden 3, 4 und die Zungen 21
aufgenommen werden als auch noch der Rückfederraum 16
gebildet wird. Beispielsweise kann der Schlitz 7 um die
Tiefe der im ersten Beispiel beschriebenen, U-förmigen
Vertiefungen 14 verbreitert sein und diese Vertiefungen
14 können dann entfallen. In diesem Fall wäre die
Seitenfläche 13 des Schlitzes 7 mit einer die Biegekante
15 bildende, sich axial erstreckenden, wulstartigen oder
halbkugelförmigen Erhöhung versehen. Zwischen einer
solchen Erhöhung und dem Anfang 10 des Schlitzes 7 wird
also ebenfalls ein Rückfederraum 16 geschaffen. The
- 11
- Zylindercylinder
- 22nd
- Platteplate
- 33rd
- Ende, vorlaufendes (2)End, leading (2)
- 44th
- Ende, nachlaufendes (2)End, trailing (2)
- 55
- Inneres (1)Interior (1)
- 66
- Mantelfläche (1)Lateral surface (1)
- 77
- Schlitz (1)Slot (1)
- 88th
- Schenkel (3)Thigh (3)
- 99
- Schenkel (4)Thigh (4)
- 1010th
- Anfang (7)Beginning (7)
- 1111
- Lochung (9)Perforation (9)
- 1212th
- Tangentetangent
- 1313
- SeitenflächeSide surface
- 1414
- Vertiefung, U-förmig, (7)Recess, U-shaped, (7)
- 1515
- BiegekanteBending edge
- 1616
- RückfederraumSpring-back space
- 1717th
- Bohrungdrilling
- 1818th
- Spindelspindle
- 1919th
- Mantelfläche (18)Lateral surface (18)
- 2020th
- --
- 2121
- Längsachse (18)Longitudinal axis (18)
- 2222
- Nut, U-förmig, (18)Groove, U-shaped, (18)
- 2323
- Schlitz (18)Slot (18)
- 2424th
- Ende (26)End (26)
- 2525th
- --
- 2626
- Zunge (26)tongue (26)
- 2727
- Widerhaken (26) Barb (26)
- 2828
- Abschrägungbevel
- 2929
- Nocken (26)Cams (26)
- aa
- Abstand zwischen Widerhaken (27) und Nocken (29)Distance between barbs (27) and cams (29)
- b7b7
- Breite des Schlitzes (7)Width of the slot (7)
- d2d2
- Dicke der Platte (2)Plate thickness (2)
- d26d26
- Dicke der Zunge (26)Tongue Thickness (26)
- l26l26
- Längelength
- r18r18
- Radiusradius
- r22r22
- Radiusradius
- Alphaalpha
- NeigungswinkelAngle of inclination
- Betabeta
- Winkelangle
Claims (9)
- Cylinder with a device for locking up plates (2) with bent ends (3; 4) on a cylinder (1) of a rotary printing machine, having a pivot lever (18) arranged in an interior part (5) of the cylinder (1), the cylinder (1) being provided with a narrow, axially running slit (7) for receiving the bent ends (3; 4) of the plate (2), characterized in that a number of tongues (26) are fastened to the pivot lever (18), in that the tongues (26) are arranged in the slit (7) to be movable from a beginning (10) of the slit (7) in the direction of the interior part (5) of the cylinder (1) and back, in that the tongues (26) are each provided with a barb (27) engaging in perforations (11) of at least one bent end (3; 4) of the plate (2).
- Cylinder according to Claim 1, characterized in that one lateral face (13) of the slit (7) is provided with a bending edge (15) and a spring-back space (16) which adjoins the bending edge (15) in the direction of the beginning (10) of the slit (7) and into which the barbs (27) of the tongue (26) are able to move back resiliently.
- Cylinder according to Claim 1, characterized in that one lateral face (13) of the slit (7) is provided with a number of recesses (14), in that the tongues (26) are arranged to be movable in the recesses (14) of the slit (7).
- Cylinder according to Claims 1 to 3, characterized in that the recesses (14) of the slit (7) are arranged to widen in the direction of the lateral surface (6) and circumferential direction of the cylinder (1) and form a spring-back space (16).
- Cylinder according to Claim 1, characterized in that a cam (29) cooperating with one leg (8, 9) of one bent end (3; 4) is arranged on the tongue (26) at a distance a from the barb (27).
- Cylinder according to Claims 1, 3 and 5, characterized in that the tongue (26) consists of a flexurally elastic, tension-and compression-resistant material.
- Cylinder according to Claim 6, characterized in that the tongue (26) consists of spring steel.
- Cylinder according to Claims 1 to 7, characterized in that the barbs (27) are provided with a sloping face (28) in the direction of the lateral surface (6) of the cylinder (1).
- Cylinder according to Claim 1, characterized in that the pivot lever (18) is designed as a spindle (18).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19509563A DE19509563C2 (en) | 1995-03-16 | 1995-03-16 | Cylinder with a device for clamping plates |
| DE19509563 | 1995-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0732202A1 EP0732202A1 (en) | 1996-09-18 |
| EP0732202B1 true EP0732202B1 (en) | 1998-06-03 |
Family
ID=7756856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96103836A Expired - Lifetime EP0732202B1 (en) | 1995-03-16 | 1996-03-12 | Cylinder with a device for tensioning a printing plate |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5644984A (en) |
| EP (1) | EP0732202B1 (en) |
| JP (1) | JP2801578B2 (en) |
| DE (2) | DE19509563C2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733718B1 (en) * | 1995-05-04 | 1997-08-01 | Heidelberg Harris Sa | CONNECTION DEVICE BETWEEN RETAINING ELEMENTS AND A TRANSMISSION OF A PRINTING SHAPE CYLINDER |
| US6131513A (en) * | 1998-10-23 | 2000-10-17 | Heidelberger Druckmaschinen Ag | Printing press with simple lock-up plate cylinder |
| EP1038672B1 (en) * | 1999-03-26 | 2003-12-03 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for tensioning of printing plates in lock-up gaps having a reduced size |
| US6378430B1 (en) | 1999-10-15 | 2002-04-30 | King Press Corporation | Cylinder with plate gripping device |
| JP3446122B2 (en) * | 2000-07-12 | 2003-09-16 | 株式会社東京機械製作所 | Blanket torso |
| DE10208262A1 (en) | 2002-02-26 | 2003-09-04 | Roland Man Druckmasch | Device for fastening a covering on a printing unit cylinder |
| FR2844743B1 (en) * | 2002-09-19 | 2004-12-17 | Goss Systemes Graphiques Nante | ASSEMBLY COMPRISING A BLANKET UNIT AND A CYLINDER WITH BLANKET FASTENING DEVICE, CYLINDER, BLANKET UNIT AND OFFSET PRESS THEREOF |
| DE102010001751B4 (en) | 2010-02-10 | 2013-05-16 | Koenig & Bauer Aktiengesellschaft | Device for fastening at least one elevator on a cylinder |
| US10737481B2 (en) * | 2017-07-03 | 2020-08-11 | Manroland Goss Web Systems Gmbh | Plate cylinder with plate lockup mechanism and related printing press and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2109152A (en) * | 1937-03-26 | 1938-02-22 | Meisel Press Mfg Company | Securing plate on printing press cylinders |
| US3626848A (en) * | 1969-06-09 | 1971-12-14 | American Rockwell Corp | Lockup for thin plates |
| DE2126941A1 (en) * | 1971-05-29 | 1972-11-30 | Albert Schnellpressen | Device for clamping flexible printing plates on the forme cylinder of rotary printing machines |
| US3727551A (en) * | 1971-07-22 | 1973-04-17 | North American Rockwell | Reversible lockup for flexible printing plate |
| DE2225016C3 (en) * | 1972-05-23 | 1976-01-29 | Koenig & Bauer Ag | DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON FORMING CYLINDERS OF ROTARY PRINTING MACHINES |
| JPH02103148A (en) * | 1988-10-13 | 1990-04-16 | Mitsubishi Heavy Ind Ltd | Plate clamping apparatus |
| DE4238343C2 (en) * | 1992-11-13 | 2003-03-27 | Kocher & Beck Gmbh & Co Rotati | Cliché fixture |
| FR2709090B1 (en) * | 1993-08-20 | 1995-11-10 | Heidelberg Harris Sa | Hook and retractable device for holding a printing plate on a plate cylinder, in a rotary printer, and rotary printer comprising such a device. |
-
1995
- 1995-03-16 DE DE19509563A patent/DE19509563C2/en not_active Expired - Fee Related
-
1996
- 1996-03-12 DE DE59600234T patent/DE59600234D1/en not_active Expired - Fee Related
- 1996-03-12 EP EP96103836A patent/EP0732202B1/en not_active Expired - Lifetime
- 1996-03-13 JP JP8056348A patent/JP2801578B2/en not_active Expired - Lifetime
- 1996-03-15 US US08/616,578 patent/US5644984A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5644984A (en) | 1997-07-08 |
| DE19509563A1 (en) | 1996-09-19 |
| EP0732202A1 (en) | 1996-09-18 |
| JP2801578B2 (en) | 1998-09-21 |
| JPH08267718A (en) | 1996-10-15 |
| DE59600234D1 (en) | 1998-07-09 |
| DE19509563C2 (en) | 1997-01-23 |
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