EP0430006B1 - Printing cylinder for rotary printing press - Google Patents

Printing cylinder for rotary printing press Download PDF

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Publication number
EP0430006B1
EP0430006B1 EP90122043A EP90122043A EP0430006B1 EP 0430006 B1 EP0430006 B1 EP 0430006B1 EP 90122043 A EP90122043 A EP 90122043A EP 90122043 A EP90122043 A EP 90122043A EP 0430006 B1 EP0430006 B1 EP 0430006B1
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EP
European Patent Office
Prior art keywords
cylinder
gap
printing unit
channel
slots
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
Application number
EP90122043A
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German (de)
French (fr)
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EP0430006A3 (en
EP0430006A2 (en
Inventor
Werner Weber
Markus Gerstenberger
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
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0430006A2 publication Critical patent/EP0430006A2/en
Publication of EP0430006A3 publication Critical patent/EP0430006A3/en
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Publication of EP0430006B1 publication Critical patent/EP0430006B1/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
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a printing unit cylinder for rotary printing presses with a channel web arranged in the cylinder channel thereof, which is supported on the bottom of the cylinder channel and is detachably fastened in the cylinder channel by means of a fastening device, the height of the channel web being such that the channel webs of two interacting cylinders meet.
  • DE-A-35 40 581 shows a filler in a cylinder channel, which is arranged in a web-like manner and is supported on the arch of the cylinder channel.
  • This relatively short filler is arranged approximately in the middle of the cylinder and is intended to intercept the blows that occur when the cylinder channel passes through the interaction with another filler in the counter-cylinder.
  • the known filler piece is supported on both sides by flats on the channel opening, so that the filler piece is rigidly supported. It has now been shown that due to the differences between the elastic rubber blanket and the rigid filler when rolling two cylinders, considerable impacts occur, which cannot avoid cylinder vibrations.
  • a support device in a cylinder pit is known in which complex adjusting means are provided in order to adjust the height of the support bar to the theoretical cylinder diameter. It is proposed to assemble the support bar from individual parts and to design the bar as a whole or its individual parts by means of adjusting means with inclined surfaces.
  • the disadvantage of this actuating means is the fact that in practical operation of a printing machine dust and solvents occur when washing the cylinders, which penetrate into the actuating means and harden after a short time. With this known solution, a sensitive adjustment of the support bar should not be possible in the long run.
  • complicated assembly work is required to remove the parts of the support strip from the cylinder channel or to reassemble them after changing the blankets or printing plates.
  • the object of the present invention is to provide a channel web for the cylinder channel of a printing couple cylinder, the structure of which is uncomplicated and simple to insert into the cylinder channel and which ensures reliable vibration damping during passage through the channel.
  • the channel web is designed as a plate and is divided in the longitudinal direction by transverse slots into individual zones and that the zones are assigned longitudinal slots which allow elastic resilience of the outer contour of the channel web when two channel webs meet.
  • the elastic design of the channel web in the interacting cylinders makes it possible to keep the rolling pressure between the two cylinders largely constant when the cylinder channel passes, even with different surface elasticities.
  • the printer only has to use a specific channel web, depending on the surface condition of the cylinder Longitudinal slots are formed so that the elastic spring force of the channel web corresponds to the support pressure, for example of the rubber blanket.
  • the spring force itself can be determined, for example, by calculation.
  • the transverse slots each open into a longitudinal slot and the length of the longitudinal slot is designed according to the required support pressure. This ensures that each individual zone of the channel web can be individually matched to the requirements in terms of its support pressure without the neighboring zone being influenced.
  • the length of the longitudinal slots is greater in the end regions of the channel web, so that the support pressure adapts to the cylinder deflection. It is also advantageous if the channel web extends in the middle at least over half the cylinder length and protrudes 0.2 to 0.25 mm beyond the theoretical cylinder diameter. A point load on the channel webs and thus wear of the same is largely excluded.
  • retaining springs are attached to the bottom of the cylinder duct, into which the duct web can be inserted. The installation and removal of the canal bridge is therefore possible in the shortest possible time without any effort.
  • the printing unit cylinder 1 can e.g. be covered with a rubber blanket 2 and can interact with a counter cylinder 3.
  • the rubber blanket 2 is stretched over two clamping spindles 4, 5, which are arranged in a cylinder channel 6.
  • a channel web 7 is further arranged between the two ends of the rubber blanket 2 or a pressure plate, which is supported on the bottom 8 of the cylinder channel 6.
  • the channel web 7 is designed so that it meets a channel web 11 in the counter cylinder 3.
  • Fig. 2 shows the printing unit cylinder with inserted channel web 7, 1 bearer rings 12 being provided on the end faces of the printing unit cylinder.
  • FIG. 3 shows the channel web 7, which, as can be seen from FIG. 1, is designed as a plate and, viewed in the longitudinal direction, is divided into individual zones 14 by transverse slots 13.
  • the individual zones 14 are assigned longitudinal slots 15, 16, the length of which is dimensioned in accordance with the required support pressure.
  • the transverse slots 13 meet in the embodiment shown with the longitudinal slots 15, so that an independent elastic spring back of the outer contour 17 of the channel web 7 is made possible.
  • the support pressure can e.g. for a blanket cylinder 1200 to 1600 Newtons.
  • the longitudinal slots 16 can be made longer than the center of the channel web 7, so that the support pressure is reduced here and the outer contour 17 of the channel web can adapt to the cylinder deflection. Furthermore, 18 hook projections 23 are provided in the two end regions, on which the printer Channel web 7 can pull out of the cylinder channel 6. It is advantageous if the channel web 7, 11 is arranged in the middle of the cylinder and has a length which corresponds to at least half the cylinder length, and if it projects 0.2 to 0.25 mm above the theoretical cylinder diameter of the printing unit cylinder 1.
  • retaining springs 19 are fastened by means of screws 20 (FIGS. 1 and 3).
  • screws 20 To hold the channel web 7, slots 21 are provided in the area of the retaining springs 19 in the channel web, into which the spring legs 22 engage. This ensures a stable mounting of the channel web while the printing press is running and also achieves an attachment thereof which enables the channel web 7 to be easily installed and removed.
  • the channel web 7 shown in Fig. 4 is provided at the end regions of the slots 15, 16 with recesses 24, 25, avoid the voltage peaks in these areas and reduce the tension when two channel webs meet one another so far that a uniform load is achieved.
  • 7 hooks 26 are provided in the end region of the zones 14 on the inner part 30 of the channel web 7, which hook into the approaches 14 on the zones 14.
  • T-shaped holding cams 28 are provided on the inner part 30 of the channel web, which hook into lugs 29 on the zones 14.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Printing Plates And Materials Therefor (AREA)

Description

Die Erfindung betrifft einen Druckwerkszylinder für Rotationsdruckmaschinen mit einem in dessen Zylinderkanal angeordneten Kanalsteg, der sich auf dem Boden des Zylinderkanals abstützt und über eine Befestigungseinrichtung im Zylinderkanal lösbar befestigt ist, wobei der Kanalsteg höhenmäßig so ausgebildet ist, daß die Kanalstege von zwei zusammenwirkenden Zylindern aufeinandertreffen.The invention relates to a printing unit cylinder for rotary printing presses with a channel web arranged in the cylinder channel thereof, which is supported on the bottom of the cylinder channel and is detachably fastened in the cylinder channel by means of a fastening device, the height of the channel web being such that the channel webs of two interacting cylinders meet.

Die DE-A-35 40 581 zeigt ein Füllstück in einem Zylinderkanal, das stegartig angeordnet ist und sich am Bogen des zylinderkanals abstützt. Dieses relativ kurze Füllstück ist etwa in der Zylindermitte angeordnet und soll die Schläge, die beim Durchgang des Zylinderkanals entstehen, durch das Zusammenwirken mit einem weiteren Füllstück im Gegenzylinder abfangen. In einer Ausgestaltung stützt sich das bekannte Füllstück beiderseits auf Abflachungen an der Kanalöffnung ab, so daß eine starre Lagerung des Füllstücks gegeben ist. Es hat sich nun gezeigt, daß durch die Unterschiede zwischen dem elastischen Gummituch und dem starren Füllstück beim aufeinander Abrollen von zwei Zylindern erhebliche Schläge entstehen, die Zylinderschwingungen nicht vermeiden können. Auch die Anpassung der äußeren Kontur des Füllstücks an den theoretischen Zylinderdurchmesser vermag Schwingungen nicht zu beseitigen, insbesondere, wenn berücksichtigt wird, daß Gummitücher mit unterschiedlichen Härtegraden und bei anderer Zylinderkombination auch Gummitücher mit Druckplatten zusammenwirken. Somit ist es mit dieser bekannten Lösung nicht möglich, die negativen Erscheinungen im Druckbild zu vermeiden.DE-A-35 40 581 shows a filler in a cylinder channel, which is arranged in a web-like manner and is supported on the arch of the cylinder channel. This relatively short filler is arranged approximately in the middle of the cylinder and is intended to intercept the blows that occur when the cylinder channel passes through the interaction with another filler in the counter-cylinder. In one embodiment, the known filler piece is supported on both sides by flats on the channel opening, so that the filler piece is rigidly supported. It has now been shown that due to the differences between the elastic rubber blanket and the rigid filler when rolling two cylinders, considerable impacts occur, which cannot avoid cylinder vibrations. Even the adaptation of the outer contour of the filler to the theoretical cylinder diameter cannot eliminate vibrations, especially if it is taken into account that rubber blankets with different degrees of hardness and, in the case of a different cylinder combination, also rubber blankets with printing plates interact. It is therefore not possible with this known solution to avoid the negative appearances in the printed image.

Aus der DE-A-36 44 501 ist eine Stützeinrichtung in einer Zylindergrube bekannt, bei der aufwendige Stellmittel vorgesehen sind, um die Abstützleiste in ihrer Höhe zum theoretischen Zylinderdurchmesser einstellen zu können. Hierbei ist vorgeschlagen, die Abstützleiste aus einzelnen Teilen zusammenzufügen und die Leiste insgesamt oder deren Einzelteile über Stellmittel mit schrägen Flächen höheneinstellbar auszubilden. Der Nachteil dieser Stellmittel ist darin zu sehen, daß im praktischen Betrieb einer Druckmaschine Staub- und Lösungsmittel beim Waschen der Zylinder anfallen, die in die Stellmittel eindringen und nach kurzer Zeit verhärten. Mit dieser bekannten Lösung dürfte somit eine feinfühlige Einstellung der Abstützleiste auf Dauer nicht möglich sein. Außerdem sind beim Platten- oder Gummituchwechsel komplizierte Montagearbeiten erforderlich, um die Teile der Abstützleiste aus dem Zylinderkanal zu entfernen, bzw. diese nach dem Wechsel der Gummitücher bzw. Druckplatten wieder zu montieren.From DE-A-36 44 501 a support device in a cylinder pit is known in which complex adjusting means are provided in order to adjust the height of the support bar to the theoretical cylinder diameter. It is proposed to assemble the support bar from individual parts and to design the bar as a whole or its individual parts by means of adjusting means with inclined surfaces. The disadvantage of this actuating means is the fact that in practical operation of a printing machine dust and solvents occur when washing the cylinders, which penetrate into the actuating means and harden after a short time. With this known solution, a sensitive adjustment of the support bar should not be possible in the long run. In addition, when changing plates or blankets, complicated assembly work is required to remove the parts of the support strip from the cylinder channel or to reassemble them after changing the blankets or printing plates.

Aufgabe der vorliegenden Erfindung ist es, einen Kanalsteg für den Zylinderkanal eines Druckwerkszylinders zu schaffen, der in seinem Aufbau unkompliziert und einfach in den Zylinderkanal einzusetzten ist und der eine sichere Schwingungsdämpfung beim Kanaldurchgang gewährleistet.The object of the present invention is to provide a channel web for the cylinder channel of a printing couple cylinder, the structure of which is uncomplicated and simple to insert into the cylinder channel and which ensures reliable vibration damping during passage through the channel.

Die Aufgabe wird dadurch gelöst, daß der Kanalsteg als Platte ausgebildet und in Längsrichtung durch quer verlaufende Schlitze in einzelne Zonen unterteilt ist und daß den Zonen Längsschlitze zugeordnet sind, die beim Aufeinandertreffen von zwei Kanalstegen ein elastisches Zurückfedern der äußeren Kontur des Kanalstegs ermöglichen. Durch die elastische Ausbildung des Kanalstegs in den zusammenwirkenden Zylindern ist es möglich, auch bei unterschiedlicher Oberflächenelastizität den Abrolldruck zwischen den beiden Zylindern beim Durchgang des Zylinderkanals weitgehend konstant zu halten. Der Drucker muß lediglich entsprechend der Oberflächenbeschaffenheit des Zylinders einen bestimmten Kanalsteg einsetzen, dessen Längsschlitze so ausgebildet sind, daß die elastische Federkraft des Kanalstegs dem Stützdruck z.B. des Gummituchs entspricht. Die Federkraft selbst läßt sich z.B. durch Berechnung ermitteln.The object is achieved in that the channel web is designed as a plate and is divided in the longitudinal direction by transverse slots into individual zones and that the zones are assigned longitudinal slots which allow elastic resilience of the outer contour of the channel web when two channel webs meet. The elastic design of the channel web in the interacting cylinders makes it possible to keep the rolling pressure between the two cylinders largely constant when the cylinder channel passes, even with different surface elasticities. The printer only has to use a specific channel web, depending on the surface condition of the cylinder Longitudinal slots are formed so that the elastic spring force of the channel web corresponds to the support pressure, for example of the rubber blanket. The spring force itself can be determined, for example, by calculation.

Die Unteransprüche kennzeichnen vorteilhafte Ausgestaltungen der Erfindung, wobei gemäß Anspruch 2 die querverlaufenden Schlitze jeweils in einen Längsschlitz münden und die Länge des Längsschlitzes entsprechend dem benötigten Stützdruck ausgeführt ist. Hierdurch ist gewährleistet, daß jede einzelne Zone des Kanalstegs in ihrem Stützdruck individuell auf die Erfordernisse abgestimmt sein kann, ohne daß die Nachbarzone beeinflußt wird.The sub-claims characterize advantageous embodiments of the invention, wherein according to claim 2, the transverse slots each open into a longitudinal slot and the length of the longitudinal slot is designed according to the required support pressure. This ensures that each individual zone of the channel web can be individually matched to the requirements in terms of its support pressure without the neighboring zone being influenced.

Vorteilhaft ist es, wenn die Länge der Längsschlitze in den Endbereichen des Kanalstegs größer ist, so daß sich der Stützdruck an die Zylinderdurchbiegung anpaßt. Weiterhin ist es vorteilhaft, wenn sich der Kanalsteg mindestens über die halbe Zylinderlänge mittig erstreckt und 0,2 bis 0,25 mm über den theoretischen Zylinderdurchmesser übersteht. Hiermit wird eine Punktbelastung der Kanalstege und somit ein Verschleiß derselben weitgehend ausgeschlossen. Zum einfachen Montieren des Kanalstegs sind auf dem Boden des Zylinderkanals Haltefedern befestigt, in die der Kanalsteg einsteckbar ist. Der Ein- und Ausbau des Kanalstegs ist somit ohne jeglichen Aufwand in kürzester Zeit möglich.It is advantageous if the length of the longitudinal slots is greater in the end regions of the channel web, so that the support pressure adapts to the cylinder deflection. It is also advantageous if the channel web extends in the middle at least over half the cylinder length and protrudes 0.2 to 0.25 mm beyond the theoretical cylinder diameter. A point load on the channel webs and thus wear of the same is largely excluded. For easy assembly of the duct web, retaining springs are attached to the bottom of the cylinder duct, into which the duct web can be inserted. The installation and removal of the canal bridge is therefore possible in the shortest possible time without any effort.

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

Fig. 1
einen Teilquerschnitt durch einen Druckwerkszylinder,
Fig. 2
eine Ansicht eines Druckwerkszylinders,
Fig. 3
eine Ansicht eines Kanalstegs,
Fig. 4
eine Ansicht eines anderen Kanalstegs.
An embodiment of the invention is shown schematically in the drawings. It shows:
Fig. 1
a partial cross section through a printing unit cylinder,
Fig. 2
a view of a printing unit cylinder,
Fig. 3
a view of a canal bridge,
Fig. 4
a view of another canal bridge.

Der Druckwerkszylinder 1 kann in bekannter Weise z.B. mit einem Gummituch 2 bespannt sein und kann mit einem Gegenzylinder 3 zusammenwirken. Das Gummituch 2 wird über zwei Spannspindeln 4, 5 gespannt, die in einem Zylinderkanal 6 angeordnet sind. Im Zylinderkanal 6 ist weiterhin zwischen den beiden Enden des Gummituchs 2 oder einer Druckplatte ein Kanalsteg 7 angeordnet, der sich auf dem Boden 8 des Zylinderkanals 6 abstützt. Der Kanalsteg 7 ist hierbei so ausgebildet, daß er mit einem Kanalsteg 11 im Gegenzylinder 3 zusammentrifft.The printing unit cylinder 1 can e.g. be covered with a rubber blanket 2 and can interact with a counter cylinder 3. The rubber blanket 2 is stretched over two clamping spindles 4, 5, which are arranged in a cylinder channel 6. In the cylinder channel 6, a channel web 7 is further arranged between the two ends of the rubber blanket 2 or a pressure plate, which is supported on the bottom 8 of the cylinder channel 6. The channel web 7 is designed so that it meets a channel web 11 in the counter cylinder 3.

Fig. 2 zeigt den Druckwerkszylinder mit eingesetztem Kanalsteg 7, wobei an den Stirnseiten des Druckwerkszylinders 1 Schmitzringe 12 vorgesehen sind.Fig. 2 shows the printing unit cylinder with inserted channel web 7, 1 bearer rings 12 being provided on the end faces of the printing unit cylinder.

Fig. 3 zeigt den Kanalsteg 7, der, wie aus Fig. 1 ersichtlich, als Platte ausgebildet ist und in Längsrichtung gesehen durch quer verlaufende Schlitze 13 in einzelne Zonen 14 unterteilt ist. In Längsrichtung des Kanalstegs 7 sind den einzelnen Zonen 14 Längsschlitze 15, 16 zugeordnet, deren Länge entsprechend dem benötigten Stützdruck bemessen ist. Die quer verlaufenden Schlitze 13 treffen im gezeigten Ausführungsbeispiel mit den Längsschlitzen 15 zusammen, so daß ein unabhängiges elastisches Zurückfedern der äußeren Kontur 17 des Kanalstegs 7 ermöglicht wird. Der Stützdruck kann z.B. bei einem Gummituchzylinder 1200 bis 1600 Newton betragen.FIG. 3 shows the channel web 7, which, as can be seen from FIG. 1, is designed as a plate and, viewed in the longitudinal direction, is divided into individual zones 14 by transverse slots 13. In the longitudinal direction of the channel web 7, the individual zones 14 are assigned longitudinal slots 15, 16, the length of which is dimensioned in accordance with the required support pressure. The transverse slots 13 meet in the embodiment shown with the longitudinal slots 15, so that an independent elastic spring back of the outer contour 17 of the channel web 7 is made possible. The support pressure can e.g. for a blanket cylinder 1200 to 1600 Newtons.

Im Endbereich 18 des Kanalstegs 7 können die Längsschlitze 16 gegenüber der Mitte des Kanalstegs 7 länger ausgebildet sein, so daß hier der Stützdruck verringert wird und sich die äußere Kontur 17 des Kanalstegs an die Zylinderdurchbiegung anpassen kann. Weiterhin sind in den beiden Endbereichen 18 Hakenansätze 23 vorgesehen, an denen der Drucker den Kanalsteg 7 aus dem Zylinderkanals 6 herausziehen kann. Vorteilhaft ist es, wenn der Kanalsteg 7, 11 in der Zylindermitte angeordnet ist und eine Länge aufweist, die mindestens der halben Zylinderlänge entspricht, und wenn er 0,2 bis 0,25 mm über den theoretischen Zylinderdurchmesser des Druckwerkszylinders 1 übersteht. Durch das überstehen der beiden zusammenwirkenden Kanalstege 7, 11 vor der Zentrale der beiden Zylinder erfolgt bereits ein Aufbau der Stützkraft vor dem Kanaleinlauf, so daß ein impulsartiger Kraftaufbau mit allen Nachteilen der Schwingungsanregung vermieden wird.In the end region 18 of the channel web 7, the longitudinal slots 16 can be made longer than the center of the channel web 7, so that the support pressure is reduced here and the outer contour 17 of the channel web can adapt to the cylinder deflection. Furthermore, 18 hook projections 23 are provided in the two end regions, on which the printer Channel web 7 can pull out of the cylinder channel 6. It is advantageous if the channel web 7, 11 is arranged in the middle of the cylinder and has a length which corresponds to at least half the cylinder length, and if it projects 0.2 to 0.25 mm above the theoretical cylinder diameter of the printing unit cylinder 1. As a result of the two cooperating channel webs 7, 11 projecting in front of the center of the two cylinders, the supporting force is built up before the channel inlet, so that an impulsive build-up of force with all the disadvantages of the vibration excitation is avoided.

Auf dem Boden 8 des Zylinderkanals 6 sind Haltefedern 19 mittels Schrauben 20 befestigt (Fig. 1 und 3). Zum Festhalten des Kanalstegs 7 sind im Bereich der Haltefedern 19 im Kanalsteg Schlitze 21 vorgesehen, in die die Federschenkel 22 eingreifen. Hierdurch ist eine stabile Halterung des Kanalstegs während des Druckmaschinenlaufs gewährleistet und weiterhin eine Befestigung desselben erreicht, die ein leichtes Ein- und Ausbauen des Kanalstegs 7 ermöglicht.On the bottom 8 of the cylinder channel 6, retaining springs 19 are fastened by means of screws 20 (FIGS. 1 and 3). To hold the channel web 7, slots 21 are provided in the area of the retaining springs 19 in the channel web, into which the spring legs 22 engage. This ensures a stable mounting of the channel web while the printing press is running and also achieves an attachment thereof which enables the channel web 7 to be easily installed and removed.

Der in Fig. 4 gezeigte Kanalsteg 7 ist an den Endbereichen der Schlitze 15, 16 mit Aussparungen 24, 25 versehen, die Spannungsspitzen in diesen Bereichen vermeiden und die Spannung beim Auftreffen von zwei Kanalstegen aufeinander so weit abbauen, daß eine gleichmäßige Belastung erreicht wird. Um zu verhindern, daß eine Zone 14 des Kanalstegs 7 bei Materialfehler abbricht und aus dem Zylinderkanal 6 herausgeschleudert wird, sind im Endbereich der Zonen 14 am inneren Teil 30 des Kanalstegs 7 Haken 26 vorgesehen, die in Ansätze 27 an den Zonen 14 einhaken. Zwischen den Zonen 14 sind am inneren Teil 30 des Kanalstegs 7 T-förmige Haltenocken 28 vorgesehen, die in Ansätze 29 an dem Zonen 14 einhaken.The channel web 7 shown in Fig. 4 is provided at the end regions of the slots 15, 16 with recesses 24, 25, avoid the voltage peaks in these areas and reduce the tension when two channel webs meet one another so far that a uniform load is achieved. In order to prevent a zone 14 of the channel web 7 from breaking off in the event of material defects and being thrown out of the cylinder channel 6, 7 hooks 26 are provided in the end region of the zones 14 on the inner part 30 of the channel web 7, which hook into the approaches 14 on the zones 14. Between the zones 14 7 T-shaped holding cams 28 are provided on the inner part 30 of the channel web, which hook into lugs 29 on the zones 14.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
DruckwerkszylinderPrinting unit cylinder
22nd
GummituchRubber blanket
33rd
GegenzylinderCounter cylinder
44th
SpannspindelClamping spindle
55
SpannspindelClamping spindle
66
ZylinderkanalCylinder channel
77
KanalstegCanal walkway
88th
Bodenground
99
KanalöffnungCanal opening
1010th
KanalkanteChannel edge
1111
KanalstegCanal walkway
1212th
SchmitzringBearer ring
1313
quer verlaufende Schlitztransverse slot
1414
ZonenZones
1515
LängsschlitzLongitudinal slot
1616
LängsschlitzLongitudinal slot
1717th
äußere Konturouter contour
1818th
EndbereichEnd area
1919th
HaltefederRetaining spring
2020th
Schraubescrew
2121
Schlitzslot
2222
FederschenkelFeather legs
2323
HakenansatzHook approach
2424th
AusspanungRelaxation
2525th
AusspanungRelaxation
2626
Hakenhook
2727
Ansatzapproach
2828
HaltenockenHolding cams
2929
Ansatzapproach
3030th
inneren Teilinner part

Claims (7)

  1. Printing unit cylinder (1) for rotary printing machines having a gap bar (7) arranged in the cylinder gap (6) of the rotary printing machine, which gap bar is constructed as a plate, is supported on the bottom (8) of the cylinder gap (6), and is releasably fixed in the cylinder gap (6) via a fixing device, the gap bar (7) being constructed in terms of height in such a way that the gap bars (7, 11) of two interacting cylinders (1, 3) strike against one another, characterized in that the gap bar (7) is subdivided in the longitudinal direction into individual zones (14) by slots (13) running transversely, and in that the zones (14) are assigned longitudinal slots (15, 16) which, when two gap bars (7, 11) strike against one another, allow elastic spring-back of the outer contour (17) of the gap bar (7).
  2. Printing unit cylinder according to Claim 1, characterized in that the transversely running slots (13) open out in each case into a longitudinal slot (15), and in that the lengths of the longitudinal slots (15, 16) are designed in accordance with the support pressure required.
  3. Printing unit cylinder according to Claims 1 and 2, characterized in that the length of the longitudinal slots (15, 16) is greater in the end regions (18) of the gap bar (7), such that the support pressure is adapted to the deflection of the cylinder.
  4. Printing unit cylinder according to Claims 1 and 2, characterized in that the gap bar (7) extends centrally at least over half the length of the cylinder and projects by 0.2 to 0.25 mm beyond the theoretical diameter of the cylinder.
  5. Printing unit cylinder according to Claim 1 or 4, characterized in that holding springs (19) into which the gap bar (7) can be inserted are fixed on the bottom (8) of the cylinder gap (6).
  6. Printing unit cylinder according to Claim 1 or 4, characterized in that recesses (24, 25) are provided at the end regions of the slots (15, 16) for stress reduction.
  7. Printing unit cylinder according to Claim 1 or 4, characterized in that hooks (26) are provided in the end region of the zones (14) and T-shaped holding lugs (28) are provided between the zones (14), and in that the hooks (26) and the holding lugs (28) hook into projections (27 and 29 respectively).
EP90122043A 1989-12-01 1990-11-17 Printing cylinder for rotary printing press Expired - Lifetime EP0430006B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3939725 1989-12-01
DE3939725 1989-12-01
DE4034767 1990-11-02
DE4034767A DE4034767A1 (en) 1989-12-01 1990-11-02 PRINTING CYLINDERS FOR ROTARY PRINTING MACHINES

Publications (3)

Publication Number Publication Date
EP0430006A2 EP0430006A2 (en) 1991-06-05
EP0430006A3 EP0430006A3 (en) 1991-10-09
EP0430006B1 true EP0430006B1 (en) 1994-03-09

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ID=25887547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122043A Expired - Lifetime EP0430006B1 (en) 1989-12-01 1990-11-17 Printing cylinder for rotary printing press

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Country Link
US (1) US5090319A (en)
EP (1) EP0430006B1 (en)
JP (1) JPH0753448B2 (en)
CN (1) CN1018810B (en)
CA (1) CA2030626C (en)
DE (2) DE4034767A1 (en)

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DE4102858A1 (en) * 1990-03-08 1991-09-12 Heidelberger Druckmasch Ag PRINTING CYLINDERS FOR ROTARY PRINTING MACHINES
DE4303872C2 (en) * 1992-04-24 1995-08-10 Roland Man Druckmasch Printing machine with a forme cylinder and process for preparing the forme cylinder
DE19516070A1 (en) * 1995-05-04 1996-11-07 Heidelberger Druckmasch Ag Bridging arrangement for axis-parallel cylinder duct of rotary printing machines
JPH09300588A (en) * 1996-05-17 1997-11-25 Mitsubishi Heavy Ind Ltd Mounting of blanket on rotary press and mounting device
FR2776566B1 (en) * 1998-03-27 2000-06-16 Heidelberger Druckmasch Ag PRINTING GROUP CYLINDER HAVING A PRINTING PLATE WITH ELBOWED ENDS, FIXED ON HIM, FOR ROTARY PRINTING MACHINES
US7370579B2 (en) * 2002-12-16 2008-05-13 Koenig & Bauer Aktiengesellschaft Printing blanket assembly for a blanket cylinder and method for producing a printing blanket assembly
JP4309395B2 (en) * 2002-12-16 2009-08-05 ケーニッヒ ウント バウエル アクチエンゲゼルシャフト Printing blanket device for printing blanket cylinder and manufacturing method of printing blanket device
JP4021856B2 (en) * 2004-02-06 2007-12-12 西研グラフィックス株式会社 Printing cylinder structure of rotary printing press
JP3878622B2 (en) * 2004-05-19 2007-02-07 株式会社東京機械製作所 Blanket cylinder filling material
CN102245388A (en) * 2008-11-03 2011-11-16 特瑞堡工程系统意大利股份公司 Finishing element of a coating for a typographic cylinder and manufacturing and finishing method thereof, coating of a typographic cylinder and manufacturing method thereof, typographic cylinder comprising such a coating, and method of application of
CN112537133A (en) * 2020-11-25 2021-03-23 无锡市华美达印刷有限公司 Rubber cloth tensioning device for printing

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Also Published As

Publication number Publication date
JPH0753448B2 (en) 1995-06-07
DE4034767A1 (en) 1991-06-06
CN1018810B (en) 1992-10-28
CA2030626A1 (en) 1991-06-02
EP0430006A3 (en) 1991-10-09
DE59004895D1 (en) 1994-04-14
EP0430006A2 (en) 1991-06-05
CA2030626C (en) 1995-04-04
US5090319A (en) 1992-02-25
DE4034767C2 (en) 1992-10-29
JPH03182354A (en) 1991-08-08
CN1052078A (en) 1991-06-12

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