EP0671266A1 - Procédé pour éviter des maculatures pendant les changements de vitesse d'une machine d'impression offset - Google Patents

Procédé pour éviter des maculatures pendant les changements de vitesse d'une machine d'impression offset Download PDF

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Publication number
EP0671266A1
EP0671266A1 EP95102369A EP95102369A EP0671266A1 EP 0671266 A1 EP0671266 A1 EP 0671266A1 EP 95102369 A EP95102369 A EP 95102369A EP 95102369 A EP95102369 A EP 95102369A EP 0671266 A1 EP0671266 A1 EP 0671266A1
Authority
EP
European Patent Office
Prior art keywords
speed
sheet
sheets
printing
stack
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.)
Granted
Application number
EP95102369A
Other languages
German (de)
English (en)
Other versions
EP0671266B1 (fr
Inventor
Thomas Fuchs
Karl-Heinz Franz
Valentin Gensheimer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6512126&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0671266(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0671266A1 publication Critical patent/EP0671266A1/fr
Application granted granted Critical
Publication of EP0671266B1 publication Critical patent/EP0671266B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/16—Programming systems for automatic control of sequence of operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/08—Tripping devices or stop-motions for starting or stopping operation of cylinders

Definitions

  • the sheets to be printed are removed from the top of a sheet stack by means of separating and drag suction devices in a feeder, conveyed to a sheet feeder via an feed table, aligned there and - if a correct sheet feeder has been determined - detected by a pre-gripper or the like and printed in the individual printing units.
  • the blanket cylinder is mounted on and off both on the corresponding plate cylinder and on the sheet-guiding impression cylinder for printing on and off.
  • the ink is fed to the printing forms stretched around the respective plate cylinders via jack inking units with a number of inking unit rollers.
  • the printing of sheets is interrupted at least within the period in which the change in the printing speed is carried out and the printing of the sheets takes place again only after the intended printing speed has been reached.
  • the method according to the invention can be carried out in three variants which are explained below. It is assumed in the exemplary embodiments described that a brief stop occurred during the production printing and that the printing press is then raised from a basic speed to the production printing speed.
  • the stop at the production speed (eg faulty sheet travel) initially blocked the sheet inlet on the sheet feeder and decoupled the feeder from the printing press via the magnetic coupling.
  • the blowing and suction air for the separating and drag vacs was switched off.
  • the press was brought down from the production speed to the basic speed or next to a standstill over a steep time ramp.
  • the respective blanket cylinders were switched off from the counter-pressure and plate cylinders.
  • the dampening and inking rollers were also switched off from the plate cylinder.
  • the dampening and inking rollers are then re-positioned, the respective blanket cylinders are positioned on the corresponding plate cylinders, and the blanket cylinders are positioned on the impression cylinders for printing on the first sheet.
  • the speed of the sheet-fed offset printing machine is increased to the production printing speed, for example, after a blanket washing or also at the start of production.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP95102369A 1994-03-08 1995-02-21 Procédé pour éviter des maculatures pendant les changements de vitesse d'une machine d'impression offset Expired - Lifetime EP0671266B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407632A DE4407632C2 (de) 1994-03-08 1994-03-08 Verfahren zur Vermeidung von Makulatur während des Betriebs einer Bogenoffsetdruckmaschine
DE4407632 1994-03-08

Publications (2)

Publication Number Publication Date
EP0671266A1 true EP0671266A1 (fr) 1995-09-13
EP0671266B1 EP0671266B1 (fr) 1997-09-24

Family

ID=6512126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102369A Expired - Lifetime EP0671266B1 (fr) 1994-03-08 1995-02-21 Procédé pour éviter des maculatures pendant les changements de vitesse d'une machine d'impression offset

Country Status (3)

Country Link
EP (1) EP0671266B1 (fr)
AT (1) ATE158538T1 (fr)
DE (2) DE4407632C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1044910A2 (fr) * 1999-04-13 2000-10-18 MAN Roland Druckmaschinen AG Procédé et dispositif pour démarrer une machine d'impression de feuilles
DE102006026658A1 (de) * 2005-12-27 2007-07-05 Man Roland Druckmaschinen Ag Vorauslaufende Walzenabstellung bei Druckformwechsel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007032922B4 (de) * 2007-07-14 2015-05-07 manroland sheetfed GmbH Verfahren zum Betreiben einer Bogendruckmaschine
DE102015208179B4 (de) * 2014-05-27 2021-01-14 Koenig & Bauer Ag Verfahren zur Ausrichtung von Plattenzylindern und zur Justierung von Druckplatten in Bogendruckmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477367A (en) * 1967-07-14 1969-11-11 Harris Intertype Corp Printing press
DE2113608A1 (de) * 1971-03-20 1972-09-28 Maschf Augsburg Nuernberg Ag Offsetrotationsdruckmaschine
EP0490475A1 (fr) * 1990-11-28 1992-06-17 Ward Holding Company, Inc. Démarrage et arrêt d'impression des feuilles fournies
GB2264673A (en) * 1992-03-03 1993-09-08 Heidelberger Druckmasch Ag Method for reducing doubling in the start-up phase of a sheet-fed printing press.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195456A (en) * 1963-11-18 1965-07-20 Cutler Hammer Inc Timing and sequencing control system for sheet fed rotary printing press
US3467007A (en) * 1966-03-22 1969-09-16 Harris Intertype Corp Electrical controls for a multiple couple printing press
US3460473A (en) * 1966-12-28 1969-08-12 Harris Intertype Corp Rotary sheet fed machine
DE3338143C2 (de) * 1983-10-20 1986-12-18 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zur Erzeugung einer dem Druckbild entsprechenden Farbschichtstärke im Farbwerk einer Druckmaschine
DE3707695A1 (de) * 1987-03-11 1988-09-22 Heidelberger Druckmasch Ag Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477367A (en) * 1967-07-14 1969-11-11 Harris Intertype Corp Printing press
DE2113608A1 (de) * 1971-03-20 1972-09-28 Maschf Augsburg Nuernberg Ag Offsetrotationsdruckmaschine
EP0490475A1 (fr) * 1990-11-28 1992-06-17 Ward Holding Company, Inc. Démarrage et arrêt d'impression des feuilles fournies
GB2264673A (en) * 1992-03-03 1993-09-08 Heidelberger Druckmasch Ag Method for reducing doubling in the start-up phase of a sheet-fed printing press.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1044910A2 (fr) * 1999-04-13 2000-10-18 MAN Roland Druckmaschinen AG Procédé et dispositif pour démarrer une machine d'impression de feuilles
EP1044910A3 (fr) * 1999-04-13 2002-05-15 MAN Roland Druckmaschinen AG Procédé et dispositif pour démarrer une machine d'impression de feuilles
DE102006026658A1 (de) * 2005-12-27 2007-07-05 Man Roland Druckmaschinen Ag Vorauslaufende Walzenabstellung bei Druckformwechsel

Also Published As

Publication number Publication date
ATE158538T1 (de) 1997-10-15
DE4407632C2 (de) 1996-06-20
EP0671266B1 (fr) 1997-09-24
DE4407632A1 (de) 1995-09-21
DE59500696D1 (de) 1997-10-30

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