EP1037746B1 - Bahnführungswalze - Google Patents
Bahnführungswalze Download PDFInfo
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F22/00—Means preventing smudging of machine parts or printed articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying 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.
Landscapes
- 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
Bei Berührung der bedruckten Seite der Papierbahn mit der Papierleitwalze kommt es zu Farbablagerungen auf der Papierleitwalze, welche zum Verschmieren des Druckbildes führen können.
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.
- 1
- Druckeinheit
- 2
- Druckeinheit
- 3
- Gummizylinder
- 4
- Gummizylinder
- 5
- -
- 6
- Plattenzylinder
- 7
- Plattenzylinder
- 8
- Papierbahn, Druckträgerbahn
- 9
- Papierleitwalze, Bahnführungswalze
- 10
- -
- 11
- Oberfläche (9)
- 12
- Motor (1)
- 13
- Motor (2)
- 14
- Motor (9)
- 15
- -
- 16
- Druckwerk, linkes (1)
- 17
- Druckwerk, rechtes (1)
- 18
- Druckwerk, linkes (2)
- 19
- Druckwerk, rechtes (2)
- 20
- -
- 21
- Zugwalze (9)
- 22
- Gegenwalze (9)
- 23
- Motor (22)
- 24
- Bahnfangeinrichtung
- 25
- -
- 26
- Rißstelle
- F
- Laufrichtung (8)
- d
- Radius (9)
- e
- Radius (3; 4)
Claims (7)
- Bahnführungswalze für eine Rollenrotationsdruckmaschine, wobei eine Druckträgerbahn (8) mittels Druckwerken (16 bis 19) bedruckt und nachfolgend über zumindest eine die bedruckte Seite der Druckträgerbahn (8) berührende Bahnführungswalze (9) geführt wird, dadurch gekennzeichnet, daß ein Radius (d) der antreibbaren Bahnführungswalze (9) gleich einem wirksamen Radius (e) im Druckbetrieb eines belasteten Übertragungszylinders (3 oder 4) eines Druckwerkes (16 bis 19) ist und daß die Bahnführungswalze (9) winkelsynchron zu diesem Übertragungszylinder (3; 4) angetrieben ist.
- Bahnführungswalze für eine Rollenrotationsdruckmaschine, wobei eine Druckträgerbahn (8) mittels Druckwerken (16 bis 19) bedruckt und nachfolgend über zumindest eine die bedruckte Seite der Druckträgerbahn (8) berührende Bahnführungswalze (9) geführt wird, dadurch gekennzeichnet, daß ein Radius (d) der antreibbaren Bahnführungswalze (9) gleich einem ganzzahligen Bruchteil (1/n) eines wirksamen Radius (e) im Druckbetrieb eines belasteten Übertragungszylinders (3 oder 4) eines Druckwerkes (16 bis 19) ist und daß ein Formzylinder (6 oder 7) des Druckwerkes (16 bis 19) annähernd den Radius (d) der Bahnführungswalze (9) aufweist.
- Bahnführungswalze für eine Rollenrotationsdruckmaschine, wobei eine Druckträgerbahn (8) mittels Druckwerken (16 bis 19) bedruckt und nachfolgend über zumindest eine die bedruckte Seite der Druckträgerbahn (8) berührende Bahnführungswalze (9) geführt wird, dadurch gekennzeichnet, daß ein Radius (d) der antreibbaren Bahnführungswalze (9) einem ganzzahligen Vielfachen eines wirksamen Radius (e) im Druckbetrieb eines belasteten Übertragungszylinders (3 oder 4) eines Druckwerkes (16 bis 19) entspricht.
- Bahnführungswalze nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß die Bahnführungswalze (9) eine oleophobe Oberfläche (11) aufweist.
- Bahnführungswalze nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß die Bahnführungswalze (9) eine gummierte Oberfläche (11) aufweist.
- Bahnführungswalze nach Anspruch 5, dadurch gekennzeichnet, daß die Bahnführungswalze (9) eine umfangsveränderbare gummibeschichtete Oberfläche (11) aufweist.
- Bahnführungswalze nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß die Bahnführungswalze (9) mittels drehbarer Einführungen für ein durchfließendes temperierbares Medium ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19755317A DE19755317A1 (de) | 1997-12-12 | 1997-12-12 | Bahnführungswalze |
DE19755317 | 1998-12-08 | ||
PCT/DE1998/003640 WO1999029507A2 (de) | 1997-12-12 | 1998-12-08 | Bahnführungswalze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1037746A2 EP1037746A2 (de) | 2000-09-27 |
EP1037746B1 true EP1037746B1 (de) | 2001-10-17 |
Family
ID=7851725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966772A Expired - Lifetime EP1037746B1 (de) | 1997-12-12 | 1998-12-08 | Bahnführungswalze |
Country Status (5)
Country | Link |
---|---|
US (1) | US6371020B1 (de) |
EP (1) | EP1037746B1 (de) |
JP (1) | JP3387056B2 (de) |
DE (2) | DE19755317A1 (de) |
WO (1) | WO1999029507A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602004028553D1 (de) * | 2003-07-24 | 2010-09-23 | Miyakoshi Printing Mach | Rotationsdruckmaschine |
US20100064917A1 (en) * | 2006-11-24 | 2010-03-18 | Goss International Montataire Sa | Printing machine and corresponding method |
DE102009005065B4 (de) * | 2008-02-18 | 2021-04-29 | Heidelberger Druckmaschinen Ag | Verfahren und Vorrichtung zum Ein- und Auskuppeln eines Plattenzylinders in einer Bogendruckmaschine |
US20150328879A1 (en) * | 2014-05-19 | 2015-11-19 | Matthias Hermann Regelsberger | Precision registration in printing cylinder systems |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3060853A (en) * | 1958-07-16 | 1962-10-30 | Tribune Company | Printing |
DE1873638U (de) * | 1963-03-28 | 1963-06-12 | Maschf Augsburg Nuernberg Ag | Mehrfarben-offsetrotationsdruckmaschine. |
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 (de) * | 1991-07-05 | 1994-03-17 | Roland Man Druckmasch | Beschichtete Papierleitwalze |
-
1997
- 1997-12-12 DE DE19755317A patent/DE19755317A1/de not_active Withdrawn
-
1998
- 1998-12-08 EP EP98966772A patent/EP1037746B1/de not_active Expired - Lifetime
- 1998-12-08 DE DE59801816T patent/DE59801816D1/de not_active Expired - Lifetime
- 1998-12-08 WO PCT/DE1998/003640 patent/WO1999029507A2/de active IP Right Grant
- 1998-12-08 US US09/589,598 patent/US6371020B1/en not_active Expired - Fee Related
- 1998-12-08 JP JP2000524134A patent/JP3387056B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1037746A2 (de) | 2000-09-27 |
DE59801816D1 (de) | 2001-11-22 |
WO1999029507A2 (de) | 1999-06-17 |
JP3387056B2 (ja) | 2003-03-17 |
WO1999029507A3 (de) | 1999-07-22 |
US6371020B1 (en) | 2002-04-16 |
JP2001525274A (ja) | 2001-12-11 |
DE19755317A1 (de) | 1999-06-17 |
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