EP0110166B1 - Rollenrotations-Druckmaschine - Google Patents

Rollenrotations-Druckmaschine Download PDF

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Publication number
EP0110166B1
EP0110166B1 EP83110849A EP83110849A EP0110166B1 EP 0110166 B1 EP0110166 B1 EP 0110166B1 EP 83110849 A EP83110849 A EP 83110849A EP 83110849 A EP83110849 A EP 83110849A EP 0110166 B1 EP0110166 B1 EP 0110166B1
Authority
EP
European Patent Office
Prior art keywords
web
inking
cylinder
printing machine
inking roller
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
Application number
EP83110849A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0110166A1 (de
Inventor
Hermann Fischer
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0110166A1 publication Critical patent/EP0110166A1/de
Application granted granted Critical
Publication of EP0110166B1 publication Critical patent/EP0110166B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301—Devices for tripping and adjusting form rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/20—Safety devices preventing damage
    • B41P2233/23—Safety devices preventing damage by preventing the web winding up around cylinders

Definitions

  • the invention relates to a web-fed rotary printing press with at least one printing unit, in which each plate cylinder can be inked by at least one inking roller of an inking unit, and with a device for determining a web break.
  • the object of the invention is to develop web-fed rotary printing presses of the type specified at the outset in such a way that in the event of web breaks, the web is prevented from entering the inking unit.
  • the printing unit 1 comprises two plate cylinders 4, 5 and two blanket cylinders 6 and 7, while in the printing unit 2 two plate cylinders 8, 9 and two blanket cylinders 10, 11 are provided.
  • This inking unit comprises at least one inking roller 12 which is in contact with a distribution cylinder 13.
  • the distribution cylinder 13 receives ink via a further inking unit roller 14, on which a so-called rider roller 15 can be placed, as well as via an inking unit roller 16, to which ink is supplied in the usual manner from an ink fountain (not shown).
  • a device for detecting a paper web tear is provided between the two printing units 1 and 2. This can consist, for example, of an optical radiation source 17 and a photo cell 18.
  • the paper web 3 is passed between these two elements 17, 18. If a web break occurs, the amount of light striking the photocell 18 changes.
  • the elements 17 and 18 are connected via electrical lines 19, 20 to a control circuit in which a signal caused by the change in light quantity at the photocell 18 is registered when a web break occurs.
  • the control circuit 21 then transmits a control signal via a control line 22 to a valve 23, for example a pneumatically or hydraulically operating valve, which is connected via a corresponding line 24 to a hydraulically or pneumatically operating power piston 25.
  • the control mentioned causes the power piston 25 to be activated in order to retract its piston, not shown in FIGS. 2 and 3, which had previously been extended, by a certain amount.
  • FIG. 3 the bearings of the right side of the inking roller 12 and the distribution cylinder 13 are shown.
  • the side wall 26 which is usually also used for mounting the printing couple cylinders is used for this.
  • a lever 27 is rotatably arranged on the journal 28 of the distribution cylinder, specifically via a bearing 29.
  • a bearing housing 30 is shown on the inside of the lever 27, which supports the journal 31 of the inking roller 12 via a bearing 32 positioned.
  • a pin 33 is indicated, on which the power cylinder 25 is articulated.
  • the piston of the power cylinder 25, secured by a bolt 34, is connected to a lever 35.
  • the latter is arranged in a rotationally fixed manner on a pin 37 by means of a pin 36, the rear part of which is connected eccentrically to the bearing housing 30.
  • Fig. 2 shows that the lever 27 is connected to another stationary articulated cylinder 38 through which the lever 27 can be pivoted about the axle 28.
  • Such pivoting enables the inking roller 12 to be lifted off the plate cylinder 4, the contact between the distribution cylinder 13 and the inking roller 12 being maintained unchanged.
  • the inking roller 12 can advantageously be separated from the distribution cylinder 13 by activating the power piston 25, the inking roller 12 maintaining contact with the plate cylinder 4. This separation of the inking roller 12 from the distribution cylinder 13 takes place each time a web break is detected in order to prevent the torn web 3 from being pulled into the inking unit via the plate cylinder 4.
  • the web 3 coming up via the plate cylinder 4 is detected by the inking roller 12 provided with an ink layer and, since this is a larger amount of ink than the plate cylinder 4 carries and also has a soft surface, whereby the adhesive force exerted on the paper web 3 is greater than the adhesion to the plate cylinder 4.
  • the pneumatic power cylinder 38 provides a resilient contact of the inking roller 12, which means that it can lift off from the plate cylinder without damaging its bearings or bends, ie, evade it, in accordance with the wound, torn paper web 3.
  • the lever 35 shown in Figures 2 and 3 is designed so that its pivot point is 39, i. that is, when the power piston 25 is activated, the lever 35 rotates around the point 39.
  • the center 40 of the journal 31 of the inking roller 12 does not coincide with the pivot point of the lever 35, but lies higher, when the power piston 25 moves in, the center point of the journal 31 is pivoted to the point 41, as a result of which the inking roller 12 is separated from the distribution cylinder 13.
  • other means available to the person skilled in the art can also be used instead of the devices for separating the inking roller 12 from the distribution cylinder 13 shown in FIGS. 2 and 3 or instead of the distribution cylinder 13 on the inking roller 12. For example, it is possible to lift the distribution cylinder 13 upwards if the inking rollers allow this.
  • a further inking roller 42 is indicated by dashed lines and is likewise in contact with the distribution cylinder 13. Seen in the direction of rotation of the plate cylinder 4, this second inking roller 42 lies behind the inking roller 12.
  • this ink can of course also be equipped with the separating device described, as well as the first inking roller transferring dampening agent.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Recording Measured Values (AREA)
EP83110849A 1982-11-27 1983-10-29 Rollenrotations-Druckmaschine Expired EP0110166B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3244045 1982-11-27
DE3244045A DE3244045C2 (de) 1982-11-27 1982-11-27 Einrichtung zum Verhindern von Druckwerksschäden bei Papierbahnrissen

Publications (2)

Publication Number Publication Date
EP0110166A1 EP0110166A1 (de) 1984-06-13
EP0110166B1 true EP0110166B1 (de) 1986-09-03

Family

ID=6179294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110849A Expired EP0110166B1 (de) 1982-11-27 1983-10-29 Rollenrotations-Druckmaschine

Country Status (4)

Country Link
US (1) US4523522A (enrdf_load_stackoverflow)
EP (1) EP0110166B1 (enrdf_load_stackoverflow)
JP (1) JPS59104940A (enrdf_load_stackoverflow)
DE (1) DE3244045C2 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765258A (en) * 1984-05-21 1988-08-23 Coal Tech Corp. Method of optimizing combustion and the capture of pollutants during coal combustion in a cyclone combustor
DE3822497A1 (de) * 1987-12-02 1989-10-19 Kotterer Grafotec Vorrichtung zum verhindern von maschinenschaeden
DE3911990A1 (de) * 1989-04-12 1990-10-25 Kotterer Grafotec Vorrichtung zum fangen einer gerissenen bedruckstoffbahn
DE4311774A1 (de) * 1993-04-08 1994-10-13 Heidelberger Druckmasch Ag Sicherheitsvorrichtung für eine Rotationsdruckmaschine zum Drucken auf Bahnen
US5355798A (en) * 1993-11-12 1994-10-18 Yoder Jr Donald E Intermittent motion rotary printing press
DE4417661C2 (de) * 1994-05-20 1996-06-05 Koenig & Bauer Albert Ag Anordnung zum Verhindern von Druckwerksschäden bei einer Rollenrotationsdruckmaschine
FR2761355B1 (fr) * 1997-03-26 1999-06-11 Heidelberg Harris Sa Dispositif de retenue d'une bande dans la superstructure d'une machine rotative a imprimer
DE10057571B4 (de) * 1999-12-16 2012-01-26 Heidelberger Druckmaschinen Ag Verfahren zur Zylinderverstellung und Druckmaschinen zur Durchführung des Verfahrens
DE50110918D1 (de) * 2000-05-24 2006-10-19 Voith Patent Gmbh Trockenpartie
DE10215422A1 (de) * 2002-04-08 2003-10-23 Roland Man Druckmasch Farb- oder Feuchtwerk einer Rotationsdruckmaschine
DE102008034249B4 (de) * 2008-07-23 2013-11-21 manroland sheetfed GmbH Verfahren zum Betreiben eines Farbwerks eines Druckwerks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156505B1 (de) * 1971-11-13 1973-02-15 Maschinenfabnk Augsburg Nürnberg AG, 8900 Augsburg Einrichtung zum verhindern von druckwerksschaeden bei papierbahnrissen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095810A (en) * 1958-08-18 1963-07-02 Timsons Ltd Rotary printing machines
DE1279690B (de) * 1966-09-09 1968-10-10 Roland Offsetmaschf Einrichtung an einem Feuchtwerk fuer Offsetdruckmaschinen zum Steuern der Feuchtfluessigkeitszufuhr
CH480180A (de) * 1968-02-07 1969-10-31 Albert Schnellpressen Vorrichtung zum An- und Abstellen der Auftragwalzen im Farbwerk von Rotationsdruckmaschinen
US3638568A (en) * 1970-08-07 1972-02-01 Wallace H Granger Rotary newspaper printing press having automatic interrupters for press cylinders
US3789757A (en) * 1971-03-26 1974-02-05 Motter J Printing Press Co Printing press having automatic printing cylinder loading and unloading apparatus
IT1160413B (it) * 1978-12-28 1987-03-11 Cigardi Omc Sa Dispositivo di bagnotura perfezionato, ad acqua ed a miscela acqua-alcool, applicabile su macchine da stampa offset
DE2902228C2 (de) * 1979-01-20 1981-12-17 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Vorrichtung zum Zuführen von Flüssigkeit zum Plattenzylinder einer Offset-Rotationsdruckmaschine
US4240346A (en) * 1979-01-29 1980-12-23 Harris Corporation Web printing press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156505B1 (de) * 1971-11-13 1973-02-15 Maschinenfabnk Augsburg Nürnberg AG, 8900 Augsburg Einrichtung zum verhindern von druckwerksschaeden bei papierbahnrissen

Also Published As

Publication number Publication date
US4523522A (en) 1985-06-18
JPH0410424B2 (enrdf_load_stackoverflow) 1992-02-25
EP0110166A1 (de) 1984-06-13
DE3244045C2 (de) 1984-12-20
JPS59104940A (ja) 1984-06-18
DE3244045A1 (de) 1984-05-30

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