EP0726147B1 - Controller for the blanket washing system of a rotary offset printing machine with several units - Google Patents

Controller for the blanket washing system of a rotary offset printing machine with several units Download PDF

Info

Publication number
EP0726147B1
EP0726147B1 EP95119894A EP95119894A EP0726147B1 EP 0726147 B1 EP0726147 B1 EP 0726147B1 EP 95119894 A EP95119894 A EP 95119894A EP 95119894 A EP95119894 A EP 95119894A EP 0726147 B1 EP0726147 B1 EP 0726147B1
Authority
EP
European Patent Office
Prior art keywords
parameters
water
control parameters
washing
proportion
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
EP95119894A
Other languages
German (de)
French (fr)
Other versions
EP0726147A1 (en
Inventor
Claus Simet
Klaus Dürrnagel
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 EP0726147A1 publication Critical patent/EP0726147A1/en
Application granted granted Critical
Publication of EP0726147B1 publication Critical patent/EP0726147B1/en
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
    • B41F35/00—Cleaning arrangements or devices

Definitions

  • the invention relates to a control for the blanket washing devices an offset rotary printing press with several printing units arranged in series.
  • Paper dust pollution and paper stroke which is largely dependent on the print run, is, for example, when entering the printing press, i.e. on the first printing unit and also in the case of reverse printing machines greatest at the first turn. Because paper dust and paper lines mainly dissolved and cleaned with water , it is necessary, for example, the blanket washers the one at the inlet and after the first turn arranged printing units so that they with a washing liquid with a higher water content.
  • the setting of the blanket washers of these two mentioned printing units not same as the paper dust pollution after the turn in the Is usually less than the inlet.
  • the second printing unit after the enema or after the turn is less with Paper dust is dirty and therefore usually required higher solvent content during the washing process.
  • Other setting parameters are the detergent dosage.
  • the each suitable, individual attitudes of the individual Since then, washing facilities have had to be operated by the operating personnel the machine. Because these settings must be found again and again, this is with additional effort and it can lead to incorrect settings come that the print quality or economy affect the operation of the press.
  • a spray dampening system with a control system is known from EP 0 325 381 A2.
  • the control is suitable for printing presses with printing units arranged in series.
  • EP 0 654 350 A1 describes a method for cleaning cylinders with a central one Control system known.
  • the control is also suitable for printing machines with in-line arranged printing units.
  • the controller has an electronic data processing device on, among other things, the printing parameters according to given laws Assigns control parameters.
  • the invention has for its object a controller for the blanket washing equipment of several printing units to create an offset rotary printing press that has a automatic adaptation of the washing program to the operating mode which enables printing units.
  • the characteristic values and algorithms used by the computing unit are determined empirically and at the respective Adapted machine type.
  • the characteristic values and algorithms are optimized so that each with the economical smallest amount of water or detergent worked becomes.
  • the solvent levels are kept to a minimum Level optimized.
  • Operator experience can according to the invention by entering control commands are taken into account by which the control parameters are temporary or can be changed permanently.
  • the control according to the invention has the advantage that the Setting the printing machine is significantly simplified. The operating staff is relieved and incorrect settings the blanket washers are avoided.
  • the control according to the invention also takes account of convertible ones Perfecting machines the arrangement of the turn, since these are also for the correct setting of the Blanket washers is essential.
  • the control system then calculates the following control parameters for the washing processes of the individual blanket guard devices which take place at a specified time interval:
  • Printing unit 1 Amount of water 0.02 ml Amount of solvent 0.01 ml
  • Printing unit 2 Amount of water 0.01 ml Amount of solvent 0.02 ml
  • Printing unit 3 Amount of water 0.01 ml Amount of solvent 0.01 ml
  • Printing unit 4 Amount of water 0.01 ml Amount of solvent 0.015 ml
  • the specified amounts are carried out with every wash the duration of the spraying time for spraying water and Dosed solvent.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The control has an electronic data processor. This has a data input for different print parameters e.g. board height, type of printing material, type of solution, mode of operation of individual print mechanisms, and type of ink etc. It also has a data memory to store the input parameters. A computing unit calculates control parameters e.g. proportion of solution, proportion of water and dispensing quantities, from the input print parameters, for that particular washing device. The computing unit accesses tables of characteristic values stored in the memory and/or processes algorithms which allocate control parameters to the print parameters according to predetermined rules. The control also has a data output for the derived control parameters. Preferably, the control parameters can be varied by inputting control commands.

Description

Die Erfindung betrifft eine Steuerung für die Drucktuch-Wascheinrichtungen einer Offset-Rotationsdruckmaschine mit mehreren in Reihe angeordneten Druckwerken.The invention relates to a control for the blanket washing devices an offset rotary printing press with several printing units arranged in series.

Bei Offset-Rotationsdruckmaschinen mit mehreren Druckwerken sind die Anforderungen an die Drucktuch-Wascheinrichtungen der einzelnen Druckwerke sehr unterschiedlich. Der Verschmutzungsgrad und die Verschmutzungsart der einzelenen Druckwerke stehen im Zusammenhang mit der Auflagenhöhe, dem verwendeten Bedruckstoff, der Farbe und der Betriebsart der einzelnen Druckwerke. Die Verschmutzung durch Papierstaub und Papierstrich, die in starkem Maße auflagenabhängig ist, ist beispielsweise beim Einlauf in die Druckmaschine, d.h. am ersten Druckwerk und bei Widerdruckmaschinen auch nach der ersten Wendung am größten. Da Papierstaub und Papierstrich vornehmlich mit Wasser gelöst und gereinigt werden können, ist es beispielsweise notwendig, die Drucktuch-Wascheinrichtungen der am Einlauf und nach der ersten Wendung angeordneten Druckwerke so einzustellen, daß sie mit einer Waschflüssigkeit mit höherem Wasseranteil arbeiten. Gleichwohl ist jedoch die Einstellung der Drucktuch-Wascheinrichtungen dieser beiden genannten Druckwerke nicht gleich, da die Papierstaubbelastung nach der Wendung in der Regel geringer ist als beim Einlauf. Das zweite Druckwerk nach dem Einlauf oder nach der Wendung wird weniger mit Papierstaub verschmutzt und erfordert daher in der Regel höhere Lösungsmittelanteile beim Waschvorgang. Weitere Einstellparameter sind die Waschmitteldosierung. Die jeweils geeigneten, individuellen Einstellungen der einzelnen Wascheinrichtungen müssen seither vom Bedienungspersonal der Maschine vorgenommen werden. Da diese Einstellungen immer wieder neu gefunden werden müssen, ist dies mit zusätzlichem Aufwand verbunden und es kann zu Fehleinstellungen kommen, die die Druckqualität oder die Wirtschaftlichkeit des Betriebs der Druckmaschine beeinträchtigen. For offset rotary printing presses with multiple printing units are the requirements for the blanket washing equipment of the individual printing units very different. The degree of pollution and the type of pollution of the individual Printing units are related to the number of copies, the used substrate, the color and the mode of operation individual printing units. Paper dust pollution and paper stroke, which is largely dependent on the print run, is, for example, when entering the printing press, i.e. on the first printing unit and also in the case of reverse printing machines greatest at the first turn. Because paper dust and paper lines mainly dissolved and cleaned with water , it is necessary, for example, the blanket washers the one at the inlet and after the first turn arranged printing units so that they with a washing liquid with a higher water content. Nevertheless, the setting of the blanket washers of these two mentioned printing units not same as the paper dust pollution after the turn in the Is usually less than the inlet. The second printing unit after the enema or after the turn is less with Paper dust is dirty and therefore usually required higher solvent content during the washing process. Other setting parameters are the detergent dosage. The each suitable, individual attitudes of the individual Since then, washing facilities have had to be operated by the operating personnel the machine. Because these settings must be found again and again, this is with additional effort and it can lead to incorrect settings come that the print quality or economy affect the operation of the press.

Aus der EP 0 325 381 A2 ist ein Sprühfeuchtwerk mit einem Steuerungssystem bekannt. Die Steuerung ist geeignet für Druckmaschinen mit in Reihe angeordneten Druckwerken.A spray dampening system with a control system is known from EP 0 325 381 A2. The control is suitable for printing presses with printing units arranged in series.

Weiterhin ist aus der EP 0 654 350 A1 ein Verfahren zur Zylinderreinigung mit zentralem Leitsystem bekannt. Die Steuerung ist ebenso geeignet für Druckmaschinen mit in Reihe angeordneten Druckwerken. Die Steuerung weist eine elektronische Datenverarbeitungseinrichtung auf, die unter anderem den Druckparametern nach vorgegebenen Gesetzen Steuerparameter zuordnet. Furthermore, EP 0 654 350 A1 describes a method for cleaning cylinders with a central one Control system known. The control is also suitable for printing machines with in-line arranged printing units. The controller has an electronic data processing device on, among other things, the printing parameters according to given laws Assigns control parameters.

Der Erfindung liegt die Aufgabe zugrunde, eine Steuerung für die Drucktuch-Wascheinrichtungen mehrerer Druckwerke einer Offset-Rotationsdruckmaschine zu schaffen, die eine selbsttätige Anpassung des Waschprogramms an die Betriebsweise der Druckwerke ermöglicht.The invention has for its object a controller for the blanket washing equipment of several printing units to create an offset rotary printing press that has a automatic adaptation of the washing program to the operating mode which enables printing units.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1.This object is achieved by the features of claim 1.

Die von der Recheneinheit verwendeten Kennwerte und Algorithmen werden empirisch ermittelt und an den jeweiligen Maschinentyp angepaßt. Die Kennwerte und Algorithmen werden dabei so optimiert, daß jeweils mit der wirtschaftlich geringsten Wasser- oder auch Waschmittelmenge gearbeitet wird. Ebenso werden die Lösungsmittelgehalte auf minimalem Niveau optimiert. Erfahrungen des Bedienungspersonals können erfindungsgemäß durch Eingabe von Steuerbefehlen berücksichtigt werden, durch die die Steuerparameter vorübergehend oder dauerhaft änderbar sind.The characteristic values and algorithms used by the computing unit are determined empirically and at the respective Adapted machine type. The characteristic values and algorithms are optimized so that each with the economical smallest amount of water or detergent worked becomes. Likewise, the solvent levels are kept to a minimum Level optimized. Operator experience can according to the invention by entering control commands are taken into account by which the control parameters are temporary or can be changed permanently.

Die erfindungsgemäße Steuerung hat den Vorteil, daß die Einstellung der Druckmaschine wesentlich vereinfacht wird. Das Bedienungspersonal wird entlastet und Fehleinstellungen der Drucktuch-Wascheinrichtungen werden vermieden. Die erfindungsgemäße Steuerung berücksichtigt auch bei umstellbaren Schön- und Widerdruckmaschinen die Anordnung der Wendung, da diese ebenfalls für die richtige Einstellung der Drucktuch-Wascheinrichtungen wesentlich ist.The control according to the invention has the advantage that the Setting the printing machine is significantly simplified. The operating staff is relieved and incorrect settings the blanket washers are avoided. The The control according to the invention also takes account of convertible ones Perfecting machines the arrangement of the turn, since these are also for the correct setting of the Blanket washers is essential.

Die Erfindung wird nachfolgend anhand eines Beispiels näher erläutert:The invention will now be described with reference to an example explains:

Bei einer Schön- und Widerdruckmaschine mit vier Druckwerken werden folgende Druckparameter für die Steuerung der Drucktuch-Wascheinrichtung der einzelnen Druckwerke eingegeben:

Papierart:
ungestrichenes Papier (d.h. starker Papierstaubanfall)
Auflagenhöhe:
8.000 Bogen pro Stunde
Wendung:
zwischen 2. und 3. Druckwerk
In the case of a perfecting press with four printing units, the following printing parameters are entered for controlling the blanket washing device of the individual printing units:
Paper type:
uncoated paper (ie heavy paper dust)
Edition size:
8,000 sheets per hour
Turn:
between 2nd and 3rd printing unit

Die Steuerung errechnet hiernach folgende Steuerparameter für die in einem festgelegten zeitlichen Abstand erfolgenden Waschvorgänge der einzelnen Drucktuch-Wacheinrichtungen: Druckwerk 1: Wassermenge 0,02 ml Lösungsmittelmenge 0,01 ml Druckwerk 2: Wassermenge 0,01 ml Lösungsmittelmenge 0,02 ml Druckwerk 3: Wassermenge 0,01 ml Lösungsmittelmenge 0,01 ml Druckwerk 4: Wassermenge 0,01 ml Lösungsmittelmenge 0,015 ml The control system then calculates the following control parameters for the washing processes of the individual blanket guard devices which take place at a specified time interval: Printing unit 1: Amount of water 0.02 ml Amount of solvent 0.01 ml Printing unit 2: Amount of water 0.01 ml Amount of solvent 0.02 ml Printing unit 3: Amount of water 0.01 ml Amount of solvent 0.01 ml Printing unit 4: Amount of water 0.01 ml Amount of solvent 0.015 ml

Die angegebenen Mengen werden bei jedem Waschvorgang durch die Dauer der Sprühzeit für das Aufsprühen von Wasser und Lösungsmittel dosiert.The specified amounts are carried out with every wash the duration of the spraying time for spraying water and Dosed solvent.

Werden die eingegebenen Druckparameter geändert, z.B. die Auflagenhöhe vergrößert, so führt dies nach den in der Steuerung abgelegten Kennwerten oder Gesetzmäßigkeiten zu einer Änderung der Steuerparameter, z.B. einer unterschiedlichen Vergrößerung der Wasser- und Lösungsmittelmengen bei den einzelnen Druckwerken.If the entered print parameters are changed, e.g. the Edition length increased, this leads to the in the Control of stored parameters or regularities a change in the control parameters, e.g. a different one Increase in the amount of water and solvents the individual printing units.

Claims (4)

  1. Controller for the blanket washing device of an offset rotary printing press with several printing units arranged in series, an electronic data processing unit with a data input for various print parameters such as run level, the type of material to be printed, the type of solvent, the mode of operation of the individual printing units, the type of printing ink, a data store for storing the input print parameters, a computer unit which calculates from the input print parameters control parameters such as solvent proportion, water proportion and their metered amounts for the individual blanket washing devices, wherein the computing unit fetches characteristic values from tables deposited in a store and/or places algorithms which match the print parameters to control parameters according to predetermined rules, and with a data output for the control parameters calculated, characterised by a conformity to the laws for the calculation of the control parameters in accordance with which the washing liquid composed of water and solvent for the blanket washing device at the first printing unit after the run-in contains a higher quantity of water than the washing liquid for the blanket washing device of the following printing unit and that the quantity of water or solvent in the case of each washing process is metered by the duration of the corresponding spraying time for the spraying of the quantity of water or solvent.
  2. Controller according to Claim 1, characterised by a conformity with rules for the calculation of the control parameters in accordance with which the washing liquid for the blanket washing device at the first printing unit after a turning contains a higher proportion of water than the washing liquid for the washing device of the following printing unit.
  3. Controller according to one of the preceding Claims, characterised by a conformity with rules for the calculation of the control parameters in accordance with which the proportion of water in the washing liquid for the washing unit at the first printing unit after the turning is less than the proportion of water in the washing liquid for the washing device at the first printing unit after the entry.
  4. Controller according to one of the preceding Claims, characterised in that the control parameters are changeable temporarily or permanently by an input of control commands.
EP95119894A 1995-01-20 1995-12-16 Controller for the blanket washing system of a rotary offset printing machine with several units Expired - Lifetime EP0726147B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19501694A DE19501694A1 (en) 1995-01-20 1995-01-20 Control for the blanket washing device of an offset rotary printing machine with several printing units
DE19501694 1995-01-20

Publications (2)

Publication Number Publication Date
EP0726147A1 EP0726147A1 (en) 1996-08-14
EP0726147B1 true EP0726147B1 (en) 1999-06-09

Family

ID=7751953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119894A Expired - Lifetime EP0726147B1 (en) 1995-01-20 1995-12-16 Controller for the blanket washing system of a rotary offset printing machine with several units

Country Status (3)

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EP (1) EP0726147B1 (en)
AT (1) ATE181018T1 (en)
DE (2) DE19501694A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19705632A1 (en) * 1997-02-14 1998-09-03 Roland Man Druckmasch Method and arrangement for cleaning a part of a printing unit of an offset printing machine
JP2005088541A (en) * 2003-09-19 2005-04-07 Komori Corp Washing method and device for printing machine
DE102007043857A1 (en) * 2007-09-14 2009-03-19 Manroland Ag Method for operating a web-fed printing machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1313388C (en) * 1988-01-19 1993-02-02 Jimek A.B. Spray dampener valve assembly and control system
DE3841411C1 (en) * 1988-12-08 1990-07-26 Baldwin-Gegenheimer Gmbh, 8900 Augsburg, De
SE465764B (en) * 1990-03-06 1991-10-28 Nils Reinhold Berntsson SYSTEM FOR APPLICATION OF LIQUIDS ON ROLLS IN A OFFSETROTATION PRESSURE PRESSURE
US5450792A (en) * 1992-10-02 1995-09-19 Baldwin Graphic Systems, Inc. Automatic cleaning system for press rollers and cylinders
US5325780A (en) * 1993-03-09 1994-07-05 Sakurai Graphic Systems Ink washing device for a printing machine
DE4338625A1 (en) * 1993-11-12 1995-05-18 Oxy Dry Maschinen Gmbh Process for fully automatic cylinder cleaning in printing presses with a central control system

Also Published As

Publication number Publication date
DE19501694A1 (en) 1996-07-25
EP0726147A1 (en) 1996-08-14
DE59506166D1 (en) 1999-07-15
ATE181018T1 (en) 1999-06-15

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