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EP1037746B1 - Web guiding roller - Google Patents

Web guiding roller Download PDF

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Publication number
EP1037746B1
EP1037746B1 EP98966772A EP98966772A EP1037746B1 EP 1037746 B1 EP1037746 B1 EP 1037746B1 EP 98966772 A EP98966772 A EP 98966772A EP 98966772 A EP98966772 A EP 98966772A EP 1037746 B1 EP1037746 B1 EP 1037746B1
Authority
EP
European Patent Office
Prior art keywords
web
guide roll
printing
web guide
radius
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
EP98966772A
Other languages
German (de)
French (fr)
Other versions
EP1037746A2 (en
Inventor
Johannes Georg Schaede
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 AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1037746A2 publication Critical patent/EP1037746A2/en
Application granted granted Critical
Publication of EP1037746B1 publication Critical patent/EP1037746B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F22/00Means preventing smudging of machine parts or printed articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/02Conveying or guiding webs through presses or machines

Definitions

  • the invention relates to a web guide roller for a Web-fed rotary printing press according to the preamble of Claims 1, 2 and 3.
  • a web-fed rotary printing press which has at least one paper guide roller in the running direction behind the last printing unit for deflecting the paper web. If the printed side of the paper web touches the paper guide roller, there will be color deposits on the paper guide roller, which can lead to smearing of the printed image.
  • JP-A-57-193368 describes guide rolls, the Diameter equal to the diameter of a rubber cylinder a printing unit.
  • the invention has for its object a To create web guide roller.
  • the invention is based on one Embodiment explained in more detail.
  • the only Drawing shows the schematic representation of Printing units of a web-fed rotary printing press with a web guide roller according to the invention.
  • Each printing unit 16 to 19 has each have a transfer cylinder, e.g. B. rubber cylinder 3 or 4 and each a forme cylinder, e.g. B. Plate cylinder 6 or 7.
  • the cylinder 3; 4; 6; 7 each printing unit 16 to 19 are, for example with each other by means of known gear transmissions connected.
  • each printing unit 16 to 19 can be one color printed, the plate cylinders 6 or 7 each supplied by inking units, not shown become.
  • dampening units can be assigned.
  • the Rubber cylinder 3; 4 are against each other or against a continuous, print carrier web, e.g. B. paper web 8 employable.
  • the paper web 8 is after leaving the printing units 1; 2 in the running direction F via a web guide roller, e.g. B. paper guide roller 9 and deflected.
  • the paper web 8 lies at an angle of e.g. B. 90 ° or smaller / larger on the paper guide roller 9 on.
  • the paper guide roller 9 has an outer radius d on which an effective outer radius e a Rubber cylinder 3 or 4 corresponds.
  • the radius e thus corresponds to an effective one Transport radius e, due to which one Transport speed of the paper web depending on determined by the speed of the transfer cylinder is.
  • This radius e is smaller than a in printing operation Radius of the rubber cylinder in the unloaded state.
  • the effective radius e of the rubber cylinder is technical Meaning equal to the radius d of the web guide roller, d. H. Tolerances are allowed as long as on the rubber cylinder and no slippage occurs on the web guide roller. Such tolerances only lead to negligible changes in web tension.
  • the paper guide roller 9 has an oleophilic, i.e. H. e.g. B. with a rubber surface 11 or a oleophobic surface 11, e.g. B. a chrome coating.
  • the printing units 1; 2 and the paper guide roller 9 are according to a first variant with one Rotation angle-position controlled drive, e.g. B. engine 12; 13; 14 connected.
  • Each engine 12 through 14 is not a assigned rotation angle position sensor assigned, with each motor 12 to 14 and each position encoder a drive controller, not shown, is connected. All drive controllers are connected via a data bus in connection with each other. So that's one Angular synchronism between both the blanket cylinders 3 or 4 of the printing unit 1 as well as between the Rubber cylinders 3 or 4 of the printing unit 2 and Paper guide roller 9 given by both with the same Transport speed can be driven.
  • the Scope of the paper guide roller 9 the effective scope of rubber elastic elevator of rubber cylinder 3 or 4 be adaptable to compensate for possible tolerances.
  • the paper guide roller 9 has a circumferentially changeable rubber or plastic coated Surface 11 on.
  • the changeability is z. B. achieved by that on a shaft of the paper guide roller 9 circumferentially adjustable, cylindrical support element is arranged, which is a number of shell segments which is wedge-like on its inside are formed and with in the axial direction arranged counter wedges interact.
  • the support element is a cylindrical coil spring threaded, one end of which is connected to the shaft and the other end with a tensioning device is connected to the diameter of the coil spring change.
  • a oleophilic paper guide roller also an endless Have a rubber coating, a so-called sleeve.
  • an oleophilic paper guide roller in that a roller body of a coat-like one, carrying a rubber blanket Carrier plate is surrounded, the angled Leg of the carrier plate in a secant Slit of the roller body are held.
  • the oleophobic surface of a z. B. chrome coated Paper guide roller 9 thereby formed circumferentially changeable be that first the shaft journal by means of known rotatable entries. Thus a temperable liquid, e.g. B. water or oil the inside of the roller is guided.
  • a temperable liquid e.g. B. water or oil the inside of the roller is guided.
  • the radius d or the circumference of the paper guide roller 9 um be changed a few millimeters. So that can possible tolerances between the sizes of the Rubber cylinder 3 or 4 and the paper guide roller 9 be balanced.
  • The also works with double circumference machines and Double production, d. H. two identical subjects on the circumference of the forme cylinder or plate cylinder 6 or 7.
  • the peripheral speed of the rubber cylinders 3 or 4 and the driven paper guide roller 9 is the same, so that a possible deposition of color always on same location of the surface 11 or the circumference of the Paper guide roller 9 and thus with a harmless effect he follows.
  • the radius of the drivable Paper guide roller 9 an integer multiple, z. B. twice an effective radius e one Rubber cylinders 3 or 4 of a printing unit 16 to 19 correspond, the peripheral speed in each case is equal to.
  • the drivable paper guide roller or web guide roller 9 can also act as a pull roller 21.
  • the pull roller 21 driven by the motor 14 may fall still be assigned a counter roller 22, which in If necessary, can be driven by a motor 23.
  • the Counter roll 22 can also in support arms, not shown stored and by means of spring force against the pull roller 21 be employable.
  • the engine 23 can also on the counter roller 22 and the motor 14 can also be connected to the Paper guide roller 9 be flanged.
  • the drivable paper guide roller or web guide roller 9 together with the drivable counter roller 22 as a web catching device 24. If the paper web 8 tears at an assumed tear point 26 located behind the web catching device 24, the web guide roller 9 can roll up the paper web 8, which is now feeding in the running direction F, until the web-fed rotary printing machine comes to a standstill.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft eine Bahnführungswalze für eine Rollenrotationsdruckmaschine gemäß dem Oberbegriff der Ansprüche 1, 2 und 3.The invention relates to a web guide roller for a Web-fed rotary printing press according to the preamble of Claims 1, 2 and 3.

Durch die DE 29 51 246 C2 ist eine Rollenrotationsdruckmaschine bekannt, welche in Laufrichtung hinter der letzten Druckeinheit zum Umlenken der Papierbahn zumindest eine Papierleitwalze aufweist.
Bei Berührung der bedruckten Seite der Papierbahn mit der Papierleitwalze kommt es zu Farbablagerungen auf der Papierleitwalze, welche zum Verschmieren des Druckbildes führen können.
From DE 29 51 246 C2, a web-fed rotary printing press is known which has at least one paper guide roller in the running direction behind the last printing unit for deflecting the paper web.
If the printed side of the paper web touches the paper guide roller, there will be color deposits on the paper guide roller, which can lead to smearing of the printed image.

Die JP-A-57-193368 beschreibt Leitwalzen, deren Durchmesser gleich dem Durchmesser eines Gummizylinders einer Druckeinheit ist.JP-A-57-193368 describes guide rolls, the Diameter equal to the diameter of a rubber cylinder a printing unit.

Der Erfindung liegt die Aufgabe zugrunde, eine Bahnführungswalze zu schaffen.The invention has for its object a To create web guide roller.

Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1, 2 und 3 gelöst.The object is achieved by the features of Claims 1, 2 and 3 solved.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß die bedruckte Druckträgerbahn bei der Berührung mit der Bahnführungswalze kein Ablagern von Druckfarbe und somit kein Verschmieren des Druckbildes erzeugt. Dies wird einerseits durch eine oleophobe Oberfläche, z. B. aus Chrom erreicht und andererseits dadurch, daß die Oberfläche der oleophilen Bahnführungswalze einen Gummiaufzug oder Gummiüberzug aufweist. Mögliche Farbablagerungen auf der Oberfläche der Bahnführungswalze erfolgen nunmehr unschädlicherweise immer an der gleichen Stelle.The advantages that can be achieved with the invention exist especially in that the printed print carrier web when touching the web guide roller no Deposition of printing ink and therefore no smearing of the Print image generated. This is done on the one hand by a oleophobic surface, e.g. B. made of chrome and on the other hand in that the surface of the oleophilic Web guide roller a rubber elevator or rubber cover having. Possible color deposits on the surface the web guide roller now take place always in the same place.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. Die einzige Zeichnung zeigt die schematische Darstellung von Druckeinheiten einer Rollenrotationsdruckmaschine mit einer erfindungsgemäßen Bahnführungswalze.The invention is based on one Embodiment explained in more detail. The only Drawing shows the schematic representation of Printing units of a web-fed rotary printing press with a web guide roller according to the invention.

In einer Rollenrotationsdruckmaschine sind zumindest zwei bekannte Druckeinheiten 1; 2 mit vier Druckwerken 16; 17; 18; 19, z. B. eines sogenannten Achterturmes übereinander angeordnet. Jedes Druckwerk 16 bis 19 weist jeweils einen Übertragungszylinder, z. B. Gummizylinder 3 oder 4 und jeweils einen Formzylinder, z. B. Plattenzylinder 6 oder 7 auf. Die Zylinder 3; 4; 6; 7 jedes Druckwerkes 16 bis 19 sind beispielsweise untereinander mittels bekannter Zahnradgetriebe verbunden.At least in a web-fed rotary printing press two known printing units 1; 2 with four printing units 16; 17; 18; 19, e.g. B. a so-called aft tower arranged one above the other. Each printing unit 16 to 19 has each have a transfer cylinder, e.g. B. rubber cylinder 3 or 4 and each a forme cylinder, e.g. B. Plate cylinder 6 or 7. The cylinder 3; 4; 6; 7 each printing unit 16 to 19 are, for example with each other by means of known gear transmissions connected.

Mit jedem Druckwerk 16 bis 19 kann jeweils eine Farbe gedruckt werden, die den Plattenzylindern 6 oder 7 jeweils von nichtdargestellten Farbwerken zugeführt werden. Darüberhinaus können auch noch jedem Plattenzylinder 6 oder 7 der Druckwerke 16 bis 19 nicht dargestellte Feuchtwerke zugeordnet sein. Die Gummizylinder 3; 4 sind jeweils gegeneinander bzw. gegen eine durchlaufende, Druckträgerbahn, z. B. Papierbahn 8 anstellbar.With each printing unit 16 to 19 can be one color printed, the plate cylinders 6 or 7 each supplied by inking units, not shown become. In addition, anyone can Plate cylinders 6 or 7 of the printing units 16 to 19 are not shown dampening units can be assigned. The Rubber cylinder 3; 4 are against each other or against a continuous, print carrier web, e.g. B. paper web 8 employable.

Die Papierbahn 8 wird nach Verlassen der Druckeinheiten 1; 2 in Laufrichtung F über eine Bahnführungswalze, z. B. Papierleitwalze 9 geführt und dabei umgelenkt. Dabei liegt die Papierbahn 8 in einem Winkel von z. B. 90° oder kleiner/größer an der Papierleitwalze 9 an. Die Papierleitwalze 9 weist einen äußeren Radius d auf, welcher einem wirksamen äußeren Radius e eines Gummizylinders 3 oder 4 entspricht.The paper web 8 is after leaving the printing units 1; 2 in the running direction F via a web guide roller, e.g. B. paper guide roller 9 and deflected. The paper web 8 lies at an angle of e.g. B. 90 ° or smaller / larger on the paper guide roller 9 on. The paper guide roller 9 has an outer radius d on which an effective outer radius e a Rubber cylinder 3 or 4 corresponds.

Der Radius e entspricht also einem wirksamen Transportradius e, aufgrund dessen eine Transportgeschwindigkeit der Papierbahn in Abhängigkeit von der Drehzahl des Übertragungszylinders festgelegt ist.The radius e thus corresponds to an effective one Transport radius e, due to which one Transport speed of the paper web depending on determined by the speed of the transfer cylinder is.

Dieser Radius e ist im Druckbetrieb kleiner als ein Radius des Gummizylinders im unbelasteten Zustand. Der wirksame Radius e des Gummizylinders ist im technischen Sinne gleich dem Radius d der Bahnführungswalze, d. h. Toleranzen sind zulässig, solange auf dem Gummizylinder und auf der Bahnführungswalze kein Schlupf auftritt. Derartige Toleranzen führen lediglich zu vernachlässigbaren Veränderungen in der Bahnspannung.This radius e is smaller than a in printing operation Radius of the rubber cylinder in the unloaded state. The effective radius e of the rubber cylinder is technical Meaning equal to the radius d of the web guide roller, d. H. Tolerances are allowed as long as on the rubber cylinder and no slippage occurs on the web guide roller. Such tolerances only lead to negligible changes in web tension.

Die Papierleitwalze 9 hat eine oleophile, d. h. z. B. mit einem Gummituch versehene Oberfläche 11 oder eine oleophobe Oberfläche 11, z. B. eine Chrombeschichtung. The paper guide roller 9 has an oleophilic, i.e. H. e.g. B. with a rubber surface 11 or a oleophobic surface 11, e.g. B. a chrome coating.

Die Druckeinheiten 1; 2 sowie die Papierleitwalze 9 sind nach einer ersten Ausführungsvariante jeweils mit einem rotationswinkel-lagegeregelten Antrieb, z. B. Motor 12; 13; 14 verbunden. Jedem Motor 12 bis 14 ist ein nicht dargestellter Rotationswinkel-Lagegeber zugeordnet, wobei jeder Motor 12 bis 14 und jeder Lagegeber mit einem nicht dargestellten Antriebsregler verbunden ist. Alle Antriebsregler stehen über einen Datenbus miteinander in Verbindung. Damit ist eine Winkelsynchronität sowohl zwischen den Gummizylindern 3 oder 4 der Druckeinheit 1 als auch zwischen den Gummizylindern 3 oder 4 der Druckeinheit 2 und der Papierleitwalze 9 gegeben, indem beide mit gleicher Transportgeschwindigkeit antreibbar sind.The printing units 1; 2 and the paper guide roller 9 are according to a first variant with one Rotation angle-position controlled drive, e.g. B. engine 12; 13; 14 connected. Each engine 12 through 14 is not a assigned rotation angle position sensor assigned, with each motor 12 to 14 and each position encoder a drive controller, not shown, is connected. All drive controllers are connected via a data bus in connection with each other. So that's one Angular synchronism between both the blanket cylinders 3 or 4 of the printing unit 1 as well as between the Rubber cylinders 3 or 4 of the printing unit 2 and Paper guide roller 9 given by both with the same Transport speed can be driven.

Bei einer vorteilhaften Ausführungsvariante kann der Umfang der Papierleitwalze 9 dem wirksamen Umfang des gummielastischen Aufzuges des Gummizylinders 3 oder 4 anpaßbar sein, um mögliche Toleranzen auszugleichen. Dazu weist die Papierleitwalze 9 eine umfangsveränderbare gummi- oder kunststoffbeschichtete Oberfläche 11 auf. In an advantageous embodiment, the Scope of the paper guide roller 9 the effective scope of rubber elastic elevator of rubber cylinder 3 or 4 be adaptable to compensate for possible tolerances. For this purpose, the paper guide roller 9 has a circumferentially changeable rubber or plastic coated Surface 11 on.

Die Umfangsveränderbarkeit wird z. B. dadurch erzielt, daß auf einer Welle der Papierleitwalze 9 ein umfangseinstellbares, zylinderartiges Stützelement angeordnet ist, welches eine Anzahl Mantelsegmente aufweist, welche auf ihrer Innenseite keilartig ausgebildet sind und die mit in axialer Richtung angeordneten Gegenkeilen zusammenwirken. Auf dieses Stützelement ist eine zylindrische Schraubenfeder aufgefädelt, deren eines Ende mit der Welle verbunden und deren anderes Ende mit einer Spanneinrichtung verbunden ist, um den Durchmesser der Schraubenfeder zu verändern.The changeability is z. B. achieved by that on a shaft of the paper guide roller 9 circumferentially adjustable, cylindrical support element is arranged, which is a number of shell segments which is wedge-like on its inside are formed and with in the axial direction arranged counter wedges interact. On this The support element is a cylindrical coil spring threaded, one end of which is connected to the shaft and the other end with a tensioning device is connected to the diameter of the coil spring change.

Nach einer weiteren Ausführungsvariante kann eine oleophile Papierleitwalze auch einen endlosen Gummiüberzug aufweisen, einen sogenannten Sleeve.According to a further embodiment variant, a oleophilic paper guide roller also an endless Have a rubber coating, a so-called sleeve.

Ebenso ist es möglich, eine oleophile Papierleitwalze dadurch herzustellen, daß ein Walzengrundkörper von einer mantelartigen, ein Gummituch tragenden Trägerplatte umgeben ist, wobei die abgewinkelten Schenkel der Trägerplatte in einen sekantenartigen Schlitz des Walzengrundkörpers gehalten sind.It is also possible to use an oleophilic paper guide roller in that a roller body of a coat-like one, carrying a rubber blanket Carrier plate is surrounded, the angled Leg of the carrier plate in a secant Slit of the roller body are held.

Nach einer anderen Ausführungsvariante kann die oleophobe Oberfläche einer z. B. chrombeschichteten Papierleitwalze 9 dadurch umfangsveränderbar ausgebildet werden, daß zunächst die Wellenzapfen mittels bekannter drehbarer Einführungen versehen werden. Somit kann eine temperierbare Flüssigkeit, z. B. Wasser oder öl durch das Walzeninnere geführt werden.According to another embodiment variant, the oleophobic surface of a z. B. chrome coated Paper guide roller 9 thereby formed circumferentially changeable be that first the shaft journal by means of known rotatable entries. Thus a temperable liquid, e.g. B. water or oil the inside of the roller is guided.

Durch entsprechende Temperierung der Flüssigkeit und der damit verbundenen unterschiedlichen Wärmeausdehnung kann der Radius d bzw. der Umfang der Papierleitwalze 9 um einige Millimeter verändert werden. Damit können mögliche Toleranzen zwischen den Umfängen der Gummizylinder 3 oder 4 und der Papierleitwalze 9 ausgeglichen werden.By appropriate tempering of the liquid and associated different thermal expansion can the radius d or the circumference of the paper guide roller 9 um be changed a few millimeters. So that can possible tolerances between the sizes of the Rubber cylinder 3 or 4 and the paper guide roller 9 be balanced.

Schließlich ist es auch möglich, daß der Radius d der antreibbaren Papierleitwalze 9 einem ganzzahligen Bruchteil 1/n (z. B. n = 2) eines Radius e, z. B. einem 1/2 Teil, eines Gummizylinders 3 oder 4 eines Druckwerkes 16 bis 19 entspricht. Dabei weist dann ein Plattenzylinder 6 oder 7 des Druckwerkes 16 bis 19 annähernd den Radius d der Papierleitwalze 9 auf. Das geht auch bei Doppelumfangsmaschinen und Doppelproduktion, d. h. zwei gleiche Sujets am Umfang des Formzylinders bzw. Plattenzylinders 6 oder 7.Finally, it is also possible that the radius d drivable paper guide roller 9 an integer Fraction 1 / n (e.g. n = 2) of a radius e, e.g. B. one 1/2 part, a rubber cylinder 3 or 4 one Printing unit 16 to 19 corresponds. Then instructs Plate cylinder 6 or 7 of the printing unit 16 to 19 approximately the radius d of the paper guide roller 9. The also works with double circumference machines and Double production, d. H. two identical subjects on the circumference of the forme cylinder or plate cylinder 6 or 7.

Die Umfangsgeschwindigkeit von den Gummizylindern 3 oder 4 und der angetriebenen Papierleitwalze 9 ist gleich, so daß ein mögliches Ablagern von Farbe an stets der gleichen Stelle der Oberfläche 11 bzw. des Umfanges der Papierleitwalze 9 und somit mit unschädlicher Wirkung erfolgt. The peripheral speed of the rubber cylinders 3 or 4 and the driven paper guide roller 9 is the same, so that a possible deposition of color always on same location of the surface 11 or the circumference of the Paper guide roller 9 and thus with a harmless effect he follows.

Andererseits kann auch der Radius der antreibbaren Papierleitwalze 9 einem ganzzahligen Vielfachen, z. B. einem Zweifachen eines wirksamen Radius e eines Gummizylinders 3 oder 4 eines Druckwerkes 16 bis 19 entsprechen, wobei die Umfangsgeschwindigkeit jeweils gleich ist.On the other hand, the radius of the drivable Paper guide roller 9 an integer multiple, z. B. twice an effective radius e one Rubber cylinders 3 or 4 of a printing unit 16 to 19 correspond, the peripheral speed in each case is equal to.

Die antreibbare Papierleitwalze bzw. Bahnführungswalze 9 kann auch als Zugwalze 21 wirken. In einem besonderen Fall kann der von dem Motor 14 angetriebenen Zugwalze 21 noch eine Gegenwalze 22 zugeordnet werden, die im Bedarfsfalle durch einen Motor 23 antreibbar ist. Die Gegenwalze 22 kann auch in nichtdargestellten Tragarmen gelagert und mittels Federkraft gegen die Zugwalze 21 anstellbar ausgebildet sein. Der Motor 23 kann auch an die Gegenwalze 22 und der Motor 14 kann auch an die Papierleitwalze 9 angeflanscht sein.The drivable paper guide roller or web guide roller 9 can also act as a pull roller 21. In a special one The pull roller 21 driven by the motor 14 may fall still be assigned a counter roller 22, which in If necessary, can be driven by a motor 23. The Counter roll 22 can also in support arms, not shown stored and by means of spring force against the pull roller 21 be employable. The engine 23 can also on the counter roller 22 and the motor 14 can also be connected to the Paper guide roller 9 be flanged.

Schließlich ist es möglich, die antreibbare Papierleitwalze bzw. Bahnführungswalze 9 zusammen mit der antreibbaren Gegenwalze 22 als Bahnfangeinrichtung 24 zu verwenden.
Reißt nämlich die Papierbahn 8 an einer angenommenen, hinter der Bahnfangeinrichtung 24 befindlichen Rißstelle 26 durch, so kann die Bahnführungswalze 9 die nunmehr in Laufrichtung F nachschiebende Papierbahn 8 aufrollen, bis die Rollenrotationsdruckmaschine zum Stillstand kommt.
Finally, it is possible to use the drivable paper guide roller or web guide roller 9 together with the drivable counter roller 22 as a web catching device 24.
If the paper web 8 tears at an assumed tear point 26 located behind the web catching device 24, the web guide roller 9 can roll up the paper web 8, which is now feeding in the running direction F, until the web-fed rotary printing machine comes to a standstill.

BezugszeichenlisteReference list

11
DruckeinheitPrinting unit
22nd
DruckeinheitPrinting unit
33rd
GummizylinderRubber cylinder
44th
GummizylinderRubber cylinder
55
--
66
PlattenzylinderPlate cylinder
77
PlattenzylinderPlate cylinder
88th
Papierbahn, DruckträgerbahnPaper web, print carrier web
99
Papierleitwalze, BahnführungswalzePaper guide roller, web guide roller
1010th
--
1111
Oberfläche (9)Surface (9)
1212th
Motor (1)Motor (1)
1313
Motor (2)Motor (2)
1414
Motor (9)Motor (9)
1515
--
1616
Druckwerk, linkes (1)Printing unit, left (1)
1717th
Druckwerk, rechtes (1)Right printing unit (1)
1818th
Druckwerk, linkes (2)Printing unit, left (2)
1919th
Druckwerk, rechtes (2)Right printing unit (2)
2020th
--
2121
Zugwalze (9)Pull roller (9)
2222
Gegenwalze (9)Counter roll (9)
2323
Motor (22)Motor (22)
2424th
BahnfangeinrichtungWeb catching device
2525th
--
2626
Rißstelle Crack
FF
Laufrichtung (8)Running direction (8)
dd
Radius (9)Radius (9)
ee
Radius (3; 4)Radius (3; 4)

Claims (7)

  1. Web guide roll for a web-fed rotary printing machine, a printing-medium web (8) being printed by means of printing units (16 to 19) and then led over at least one web guide roll (9) that touches the printed side of the printing-medium web (8), characterized in that a radius (d) of the driven web guide roll (9) is equal to an effective radius (e) during printing operation of a loaded transfer cylinder (3 or 4) of a printing unit (16 to 19), and in that the web guide roll (9) is driven in angular synchronism with this transfer cylinder (3; 4).
  2. Web guide roll for a web-fed rotary printing machine, a printing-medium web (8) being printed by means of printing units (16 to 19) and then led over at least one web guide roll (9) that touches the printed side of the printing-medium web (8), characterized in that a radius (d) of the driven web guide roll (9) is equal to an integer fraction (1/n) of an effective radius (e) during printing operation of a loaded transfer cylinder (3 or 4) of a printing unit (16 to 19), and in that a plate cylinder (6 or 7) of the printing unit (16 to 19) has approximately the same radius (d) as the web guide roll (9).
  3. Web guide roll for a web-fed rotary printing machine, a printing-medium web (8) being printed by means of printing units (16 to 19) and then led over at least one web guide roll (9) that touches the printed side of the printing-medium web (8), characterized in that a radius (d) of the driven web guide roll (9) corresponds to an integer multiple of an effective radius (e) during printing operation of a loaded transfer cylinder (3 or 4) of a printing unit (16 to 19).
  4. Web guide roll according to Claims 1, 2 or 3, characterized in that the web guide roll (9) has an oleophobic surface (11).
  5. Web guide roll according to Claims 1, 2 or 3, characterized in that the web guide roll (9) has a rubber-covered surface (11).
  6. Web guide roll according to Claim 5, characterized in that the web guide roll (9) has a variable-circumference, rubber-coated surface (11).
  7. Web guide roll according to Claims 1, 2 or 3, characterized in that the web guide roll (9) is constructed, by means of rotatable feeds, for a temperature-controlled medium to flow through.
EP98966772A 1997-12-12 1998-12-08 Web guiding roller Expired - Lifetime EP1037746B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19755317A DE19755317A1 (en) 1997-12-12 1997-12-12 Web guide roller
DE19755317 1998-12-08
PCT/DE1998/003640 WO1999029507A2 (en) 1997-12-12 1998-12-08 Web guiding roller

Publications (2)

Publication Number Publication Date
EP1037746A2 EP1037746A2 (en) 2000-09-27
EP1037746B1 true EP1037746B1 (en) 2001-10-17

Family

ID=7851725

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Application Number Title Priority Date Filing Date
EP98966772A Expired - Lifetime EP1037746B1 (en) 1997-12-12 1998-12-08 Web guiding roller

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US (1) US6371020B1 (en)
EP (1) EP1037746B1 (en)
JP (1) JP3387056B2 (en)
DE (2) DE19755317A1 (en)
WO (1) WO1999029507A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1500502B1 (en) * 2003-07-24 2010-08-11 Miyakoshi Printing Machinery Co., Ltd. Rotary press
FR2909031B1 (en) * 2006-11-24 2011-03-04 Goss Int Montataire Sa PRINTING MACHINE AND CORRESPONDING METHOD.
DE102009005065B4 (en) * 2008-02-18 2021-04-29 Heidelberger Druckmaschinen Ag Method and device for engaging and disengaging a plate cylinder in a sheet-fed printing press
US20150328879A1 (en) * 2014-05-19 2015-11-19 Matthias Hermann Regelsberger Precision registration in printing cylinder systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060853A (en) * 1958-07-16 1962-10-30 Tribune Company Printing
DE1873638U (en) * 1963-03-28 1963-06-12 Maschf Augsburg Nuernberg Ag MULTICOLOR OFFSET ROTATION PRINTING MACHINE.
US4271379A (en) 1978-12-29 1981-06-02 Harris Corporation Web fed printing press motor control
JPS57193368A (en) * 1981-05-26 1982-11-27 Dainippon Printing Co Ltd Ink drying machine for offset rotary printing machine
AU579278B2 (en) 1986-04-28 1988-11-17 Nikka Kabushiki Kaisha Washing method and apparatus for guide rollers of rotary press
DE4122322C2 (en) * 1991-07-05 1994-03-17 Roland Man Druckmasch Coated paper guide roller

Also Published As

Publication number Publication date
WO1999029507A2 (en) 1999-06-17
DE59801816D1 (en) 2001-11-22
JP3387056B2 (en) 2003-03-17
EP1037746A2 (en) 2000-09-27
JP2001525274A (en) 2001-12-11
US6371020B1 (en) 2002-04-16
DE19755317A1 (en) 1999-06-17
WO1999029507A3 (en) 1999-07-22

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