EP0830943A2 - Procédé pour mettre/remettre l'impression du tirage en route - Google Patents

Procédé pour mettre/remettre l'impression du tirage en route Download PDF

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Publication number
EP0830943A2
EP0830943A2 EP97115439A EP97115439A EP0830943A2 EP 0830943 A2 EP0830943 A2 EP 0830943A2 EP 97115439 A EP97115439 A EP 97115439A EP 97115439 A EP97115439 A EP 97115439A EP 0830943 A2 EP0830943 A2 EP 0830943A2
Authority
EP
European Patent Office
Prior art keywords
sheet
printing
speed
feeder
machine
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
EP97115439A
Other languages
German (de)
English (en)
Other versions
EP0830943A3 (fr
EP0830943B1 (fr
Inventor
Joachim Müller
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 EP0830943A2 publication Critical patent/EP0830943A2/fr
Publication of EP0830943A3 publication Critical patent/EP0830943A3/fr
Application granted granted Critical
Publication of EP0830943B1 publication Critical patent/EP0830943B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a method for starting / restarting the production at a sheet-processing printing machine according to the preamble of claim 1.
  • the sheets to be printed are from the top removed from a stack, conveyed to the system via a conveyor table and there at feed marks aligned. Then a correctly fitting sheet is taken over by means of a pre-gripper and feeding this sheet into the first printing unit.
  • the on the one between the first printing unit of the printing press and the feeder stack Conveyor table conveyed sheets are conveyed under shed, so that their transport speed is less than the speed of the sheets within the printing press.
  • There are one on the conveyor table between the feeder stack and the printing press Larger number of sheets, so that after switching on the paper run (removal of a first Sheet from the stack of feeders) until a first sheet is reached on the system Machine makes a number of revolutions.
  • the feeders of sheetfed offset printing machines are usually via a switchable clutch connected to the drive of the printing press.
  • the clutch is the feeder with regard to its mechanical movements when printing units continue to run or further rotating printing machine can be stopped. This is especially necessary in order to Missed sheets or other disruptions in sheet travel due to an immediate stop of the feeder to prevent the paper feed and thus the feeding of sheets into the printing press.
  • the clutch arranged between the feeder and the printing press is as so-called index coupling, i.e. this coupling connects feeder and drive the press in phase. Due to the maximum strength of such Couplers interacting coupling parts can only be fed up to a maximum Basic speed of the printing press can be switched on.
  • the uppermost sheet from this stack is usually a blowing and suction device (Separating vacuum, lifting vacuum) provided, their blowing or suction air by electromagnetic actuatable valves is controllable.
  • suction is for slimming and conveying and blowing can be switched to separate regardless of the movement of the feeder.
  • the start-up / restart of the continuous printing takes place with a sheet-fed offset printing machine by switching on the feeder (clutch) at the so-called basic speed ( ⁇ 5000 sheets / h) and simultaneous switching on of the paper run (switching of the suction and Blowing air).
  • the feeder clutch
  • basic speed ⁇ 5000 sheets / h
  • simultaneous switching on of the paper run switching of the suction and Blowing air
  • the first sheets entering a printing press are due to the ink layer and dampening solution layer thicknesses that are not yet fully adjusted to the production run and the ink / fountain solution balance is not yet the optimal one Saturation of colors on Printing on the first sheets entering the press during the start-up process also due to torsional processes in the Drive system of the machine additional register offset and doubling phenomena. As a result, a certain number of waste sheets are created during the run-up process.
  • DE 4 407 631 C1 describes a method for starting / restarting the production print known in a sheet-processing printing machine with a feeder that can be coupled, at which engages the feeder at a basic speed and which removes the bow organs causing them remain switched off for the time being. Then the machine increased to an intermediate speed below the production speed and switched on the paper feed. After the first sheets have entered the machine the printing press is ramped up from the intermediate speed to that for continuous printing intended production speed.
  • This previously known method avoids a relative large number of waste sheets during the run-up process from the basic speed to the production speed, but when printing on sheets during the Run-up from intermediate to production speed also produces waste sheets.
  • This previously known control method also ensures that Detecting a double or missed sheet early switching off the ink supply is possible in the first printing unit, so that those still entering the machine and the sheets to be printed undergo a color decrease, which is based on the counteracts corresponding cylinders or rollers.
  • the object of the present invention is therefore to provide a method according to the preamble of Claim 1 to be expanded in such a way that, while avoiding the aforementioned Disadvantages of starting / restarting with a subsequent startup process waste can be reduced as far as possible.
  • the number is between a feeder stack and the Plant or the first printing zone located sheet known exactly. This number judges the design of the printing press and its feeder. Between the stack of feeders (the conveyor roller attached there) and the system are on the order of six sheets, so that the one to be carried out by the machine The number of revolutions can be deliberately exploited to the extent that it is brought forward over time Switching on the paper feed before, during or after starting the start-up process the machine a first sheet only during or after the printing speed has been reached reached the first pressure zone.
  • the times at which the switching on of the paper feed, the switching on of the feeder (Clutch) and triggering the start-up process (ramp) to production speed takes place depends in particular on the one explained above Number between feeder stack and system or printing zone of the first printing unit, the slope the ramp-up (expansion in seconds), the basic speed at which mechanical connection of the feeder is possible, as well as the preselected production speed.
  • FIG. 1 + 2 show the time course of a start-up process the printing speed, the printing speed specified in FIG. 1 is lower than the production speed according to example 2.
  • the number of sheets or machine revolutions between the feeder stack and the system or The printing zone of the first printing unit must be covered until after switching on (time z. Fig. 1) the paper feed (for example by switching on the feeder and switching the suction and blowing air) a first sheet reaches the system or the first printing zone (time e. Fig. 1 ).
  • the printing press for starting / restarting for example after a stop or at the start of production, is to be ramped up from the basic speed V G to a preprogrammed production printing speed V D.
  • the temporal extent of this programmed start-up process which is carried out by the main drive of the machine, is a predetermined period of time or a time interval dg.
  • the steepness of the ramp provided for the ramp-up process and the number of sheets explained above between the feeder stack and the system or the first one Printing zone in the first printing unit can be determined at which point in time z the switching on of the paper feed in addition to switching on the feeder has to take place until exactly a first sheet reaches the system or the first printing unit at time e after which the start-up process has ended (time d ).
  • connection of the investor and the paper feed takes place at a point in time z which is before the point in time g for triggering the start-up of the printing machine according to the specified ramp lies.
  • the above-explained time z for switching on the paper feed (blowing and suction air for the organs causing the sheet removal) and switching on the feeder was set to the production printing speed V D by a time before the time g for starting the run-up process, so that the time e of reaching a first sheet at the system or the first printing zone in the first printing unit is after the time d of reaching the production printing speed V D or coincides with this time d.
  • the production printing speed V D is higher than the production printing speed V D according to FIG. 1.
  • the steepness of the ramp-up executed between the time g and d is the same as the ramp-up according to the exemplary embodiment according to FIG. 1.
  • the higher production printing speed V D is the time interval dg in FIG. 2 larger than the corresponding interval dg according to FIG. 1.
  • the printing speed V changes according to the linear function shown according to the programmed ramp.
  • the paper feed is then switched on in addition to the feeder being switched on, two cases to be distinguished here, as will be explained below.
  • the point in time z ′′ is set in such a way that the point in time e of reaching a first sheet at the system or in the first printing zone is after the point in time d of reaching the printing speed V D or at the same time Time d coincides. Since here the speed difference between the printing speed V D to be reached and the basic speed V G is greater than in the exemplary embodiment according to FIG. 1, the time z '' for triggering or switching on the paper feed after the time g for starting the start-up process from the basic speed V G lie.
  • the printing speed V ′′ lies at the time z ′′ at which, according to Criterion explained above, the paper feed is to be switched on, above the maximum Print speed V (machine speed) at which the feeder is mechanical can be switched on via the clutch, so initially at a time z 'at one Speed V 'below the maximum admissible connection speed the connection of the To be done via the clutch and then delayed at a time z '' at the higher speed V '' the switching of the blowing and suction air for the organs that remove and support the bow, ultimately for switching the paper feed.
  • the time e was in each case as defines the point in time at which a first sheet on the system or the first printing zone of the first printing unit arrives.
  • Points in time since a sheet fed into a printing press is initially on the system comes to rest and then gripped by the pre-gripper and to the first pressure zone of the first Printing unit is promoted. Accordingly, the point in time e should be selected with regard to which the synchronization of the switching of the sheet travel to the start-up process has taken place.
  • both the arrival time at the facility and the arrival time in the the first printing unit can be the decisive criterion with regard to the time e.
  • acceleration b (V Max / 3600) / ramp the acceleration time t [sec]
  • V D / 3600 V G / 3600 + b ⁇ t
  • t (V D / 3600 - V G / 3600) / b
  • n 6 sheets between the feeder stack and the system
  • n 7.2 sheets between the feeder stack and the first printing zone. This means that 0.8 turns after starting the start-up process (0.8 x 360 °) the paper feed must be switched on.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Glass Compositions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP97115439A 1996-09-24 1997-09-06 Procédé pour mettre/remettre l'impression du tirage en route Expired - Lifetime EP0830943B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19639134 1996-09-24
DE19639134A DE19639134C2 (de) 1996-09-24 1996-09-24 Verfahren zum Anfahren/Wiederanfahren des Fortdruckes

Publications (3)

Publication Number Publication Date
EP0830943A2 true EP0830943A2 (fr) 1998-03-25
EP0830943A3 EP0830943A3 (fr) 1998-11-04
EP0830943B1 EP0830943B1 (fr) 2002-02-20

Family

ID=7806700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115439A Expired - Lifetime EP0830943B1 (fr) 1996-09-24 1997-09-06 Procédé pour mettre/remettre l'impression du tirage en route

Country Status (5)

Country Link
US (1) US5870957A (fr)
EP (1) EP0830943B1 (fr)
JP (1) JP2905180B2 (fr)
AT (1) ATE213464T1 (fr)
DE (2) DE19639134C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008040742A2 (fr) 2006-10-04 2008-04-10 Wifag Maschinenfabrik Ag Procédé de démarrage d'une rotative d'imprimerie à bobines
EP2065322A3 (fr) * 2007-11-30 2011-11-30 Koenig & Bauer AG Procédé destiné à démarrer/redémarrer une presse au sol

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19801871C2 (de) * 1998-01-20 2000-03-30 Maul & Co Chr Belser Gmbh Verfahren und Einrichtung zur Steuerung der Geschwindigkeitsänderung eines Druckzylinders
DE19916470A1 (de) * 1999-04-13 2000-10-26 Roland Man Druckmasch Verfahren und Vorrichtung zum Anfahren einer Bogendruckmaschine
JP3727859B2 (ja) * 2001-03-09 2005-12-21 三菱重工業株式会社 枚葉印刷機の運転方法
DE10137536A1 (de) * 2001-08-01 2003-02-13 Heidelberger Druckmasch Ag Verfahren zum Befördern von Bogen in einem Anleger einer Bogen verarbeitenden Druckmaschine
DE102004022085B4 (de) * 2004-05-05 2012-01-26 Manroland Ag Verfahren zum Steuern und/oder Regeln der Druckgeschwindigkeit beim Anfahren, Hoch- und/oder Herunterfahren einer Druckmaschine
US7597319B2 (en) * 2005-05-20 2009-10-06 Hewlett-Packard Development Company, L.P. Sheet handling using a ramp and grippers on an endless belt
DE102007017056A1 (de) * 2006-05-04 2007-11-08 Heidelberger Druckmaschinen Ag Nicht ganzzahliger Schuppenanleger für Bedruckstoffe verarbeitende Maschinen
US7748708B2 (en) * 2006-07-17 2010-07-06 Xerox Corporation Feedback-based document handling control system
US7914000B2 (en) * 2007-06-06 2011-03-29 Xerox Corporation Feedback-based document handling control system
JP5281851B2 (ja) * 2008-08-28 2013-09-04 リョービ株式会社 枚葉印刷機の給紙速度制御装置
DE102012024734B4 (de) * 2012-01-18 2023-04-06 Heidelberger Druckmaschinen Ag Verfahren zum Zuführen von Bogen zu einer drucktechnischen Maschine
JP6117669B2 (ja) * 2013-09-30 2017-04-19 リョービＭｈｉグラフィックテクノロジー株式会社 印刷機の制御装置
DE102014116074A1 (de) 2014-11-04 2016-05-04 manroland sheetfed GmbH Steuerung für Bogendruckmaschinen
JP6814566B2 (ja) * 2016-08-04 2021-01-20 株式会社小森コーポレーション 印刷装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460473A (en) * 1966-12-28 1969-08-12 Harris Intertype Corp Rotary sheet fed machine
IT991860B (it) * 1973-07-25 1975-08-30 Nebiolo Spa Macchina rotativa da stampa per fogli singoli
DE2921955C2 (de) * 1979-05-30 1982-06-09 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Bogenanleger für eine Bogendruckmaschine
US5103733A (en) * 1990-10-24 1992-04-14 A. B. Dick Company Printing machine with continuous sheet feed mechanism
US5606913A (en) * 1993-03-16 1997-03-04 Ward Holding Company Sheet registration control
DE4333071C1 (de) * 1993-09-29 1995-02-09 Roland Man Druckmasch Verfahren und Vorrichtung zur Steuerung des Bogeneinlaufes beim Anfahren einer bogenverarbeitenden Druckmaschine
DE4407631C1 (de) * 1994-03-08 1995-10-19 Roland Man Druckmasch Verfahren zum Anfahren/Wiederanfahren des Fortdrucks bei einer bogenverarbeitenden Druckmaschine, insbesondere Bogenoffsetdruckmaschine
DE19505560C2 (de) * 1995-02-18 1998-07-02 Roland Man Druckmasch Verfahren zum Steuern der Bogenzufuhr
DE19510082C2 (de) * 1995-03-20 1997-07-17 Roland Man Druckmasch Verfahren und Vorrichtung zur Steuerung der Bogenzufuhr bei einer bogenverarbeitenden Offsetdruckmaschine
DE19519374C2 (de) * 1995-05-26 1999-11-18 Heidelberger Druckmasch Ag Vorrichtung zur automatischen Bogenaussonderung im Ausleger einer Bogenrotationsdruckmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008040742A2 (fr) 2006-10-04 2008-04-10 Wifag Maschinenfabrik Ag Procédé de démarrage d'une rotative d'imprimerie à bobines
DE102006046894B4 (de) * 2006-10-04 2010-05-27 Wifag Maschinenfabrik Ag Verfahren zum Anfahren einer Rollenrotationsdruckmaschine
EP2065322A3 (fr) * 2007-11-30 2011-11-30 Koenig & Bauer AG Procédé destiné à démarrer/redémarrer une presse au sol

Also Published As

Publication number Publication date
EP0830943A3 (fr) 1998-11-04
DE59706422D1 (de) 2002-03-28
DE19639134A1 (de) 1998-04-02
EP0830943B1 (fr) 2002-02-20
JPH10109407A (ja) 1998-04-28
DE19639134C2 (de) 1999-03-25
ATE213464T1 (de) 2002-03-15
JP2905180B2 (ja) 1999-06-14
US5870957A (en) 1999-02-16

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