EP0722834B1 - Method for cleaning cylinders and rollers of a printing unit of a printing machine - Google Patents
Method for cleaning cylinders and rollers of a printing unit of a printing machine Download PDFInfo
- Publication number
- EP0722834B1 EP0722834B1 EP95119527A EP95119527A EP0722834B1 EP 0722834 B1 EP0722834 B1 EP 0722834B1 EP 95119527 A EP95119527 A EP 95119527A EP 95119527 A EP95119527 A EP 95119527A EP 0722834 B1 EP0722834 B1 EP 0722834B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- roller
- rollers
- roller train
- plate
- 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.)
- Revoked
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/04—Cleaning arrangements or devices for inking rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/002—Cleaning arrangements or devices for dampening rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/02—Cleaning arrangements or devices for forme cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/10—Cleaning characterised by the methods or devices
- B41P2235/20—Wiping devices
- B41P2235/21—Scrapers, e.g. absorbent pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/10—Cleaning characterised by the methods or devices
- B41P2235/26—Spraying devices
Definitions
- the invention relates to a method for cleaning Cylinders and rollers of a printing unit of a printing press, especially an offset printing machine.
- a procedure for cleaning cylinders and rollers is over known from EP 0 453 853 A2. According to the procedure Relative positions of blanket cylinders, plate cylinders as well assigned rollers freely controllable so that when Cleaning process a distance or system position can be taken.
- the object of the invention is therefore to provide a method develop that with the same washing quality the cleaning time and noticeably reduces cleaning fluid consumption.
- the task the invention is characterized by the characterizing part of Main claim resolved. Further training results from the Subclaims.
- the printing unit consists of an ink fountain 7 with Ink fountain roller 6, an ink lifter 5 and a sequence of Ink rollers, which are referred to as an ink roller train 4.
- the Ink roller 4 is a detergent spray device 10 and a water spray device 11 assigned.
- the ink roller 4 is a plate cylinder 1 which carries a printing plate, assigned.
- the plate cylinder 1 is still a Dampening roller train 3 assigned, which with a bridge roller the inking roller train 4 can be coupled.
- Plate cylinder 1 a blanket cylinder 2 one Assigned to the offset printing unit.
- On other components of the Printing unit is not discussed further.
- In the direction of rotation of the Plate cylinder 1 is seen on one of the last rollers of the Ink roller 4 a doctor device 8 arranged.
- the Doctor device 8 is received in a swivel and is pivotable by means of an actuating device 9.
- the Actuator 9 and the detergent spray device 10 and the water spray device 11 are with a controller connected in
- the mode of operation is as follows: The control is used to control the Wash sequence activated.
- the detergent spray device 10 sprays the detergent onto the for a defined time neighboring inking roller 4.
- the detergent is then over the inking roller 4 distributed to approximately the same Layer thicknesses of color and detergent are available.
- the Doctor device 8 is periodically on one of the last rollers of the inking roller 4 started and doctored the emulsion of Color and detergent.
- the inking roller 4 is from Plate cylinder 1 turned off.
- washing sequence can be repeated several times.
- the plate cylinder 1 is in contact with the inking roller 4 brought and thus the printing plate on the plate cylinder 1st also cleaned. If the wet whale train 3 is also to be cleaned, so this is over a bridge roller with the inking roller 4th coupled.
- the dampening roller of the Dampening roller train 3 additionally on the plate cylinder 1 be employed. It is about the controls, next to the one above Series connection already described, still possible individual assemblies, such as the dampening roller train 3 or To skip plate cylinder 1 and therefore only the absolutely to control components to be cleaned and in the Include cleaning procedures.
- washing sequences with detergent will be at least one Wash sequence carried out with water as a detergent.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Reinigung von Zylindern und Walzen eines Druckwerkes einer Druckmaschine, insbesondere einer Offsetdruckmaschine.The invention relates to a method for cleaning Cylinders and rollers of a printing unit of a printing press, especially an offset printing machine.
Ein Verfahren zur Reinigung von Zylindern und Walzen ist aus der EP 0 453 853 A2 bekannt. Verfahrensgemäß sind die Relativstellungen von Gummituchzylinder, Plattenzylinder sowie zugeordneten Walzen frei steuerbar einstellbar, so daß beim Reinigungsvorgang eine Abstands- oder Anlagestellung eingenommen werden kann.A procedure for cleaning cylinders and rollers is over known from EP 0 453 853 A2. According to the procedure Relative positions of blanket cylinders, plate cylinders as well assigned rollers freely controllable so that when Cleaning process a distance or system position can be taken.
Aus der DE 36 06 006 A1 ist eine Reinigungseinrichtung für den Farbwalzenzug eines Offsetdruckwerkes bekannt, welche einen Primär- und einen Sekundärstrang für die Reinigungsfluidzuführung aufweist. Beim Reinigungsvorgang selbst wird eine variable Menge an Reinigungsfluid, abhängig von der Farbschichtdicke und der Anzahl der Walzen/Zylinder, dem abgestellten Farbwalzenzug zugeführt. Die Reinigungsflüssigkeit wird abschließend mit dem angelosten Farbresten durch eine ständig angestellte Rakel vom Walzenzug entfernt.DE 36 06 006 A1 describes a cleaning device for the Ink roller of an offset printing unit known, which one Primary and a secondary strand for the Has cleaning fluid supply. During the cleaning process itself a variable amount of cleaning fluid becomes dependent on the ink layer thickness and the number of rollers / cylinders, fed to the parked inking roller. The Cleaning liquid is finally dissolved with the Remnants of ink due to a constantly running doctor blade from the single drum roller away.
Insbesondere bei Walzenzügen mit hoher Anzahl von zu reinigenden Walzen, einschließlich Zylindern, ist es nachteilig, daS eine relativ lange Zeit zum Reinigen erforderlich ist und ein relativ hoher Reinigungsfluidverbrauch (Waschmittel und Wasser) anfällt.Especially for single drum rollers with a high number of cleaning rollers, including cylinders, it is disadvantageous that a relatively long time to clean is required and a relatively high Cleaning fluid consumption (detergent and water) arises.
Aufgabe der Erfindung ist es deshalb, ein Verfahren zu entwickeln, daß bei gleicher Waschqualität die Reinigungszeit und den Reinigungsfluidverbrauch spürbar senkt. Die Aufgabe der Erfindung wird durch den kennzeichnenden Teil des Hauptanspruches gelost. Weiterbildungen ergeben sich aus den Unteransprüchen.The object of the invention is therefore to provide a method develop that with the same washing quality the cleaning time and noticeably reduces cleaning fluid consumption. The task the invention is characterized by the characterizing part of Main claim resolved. Further training results from the Subclaims.
Die vorliegende Lösung reduziert den Verbrauch von
Reinigungsfluid (Waschmittel und/oder Wasser) und reduziert
die Waschzeiten bei gleicher Waschqualität. Es wurde gefunden,
daß insbesondere durch das periodische Rakeln der Verbrauch
von Reinigungsfluid gesenkt wird, da nicht mehr wie bisher ein
ständig angestelltes Rakel unter Umständen unverbrauchtes
Reinigungsfluid sofort wieder abrakelt. Weiterhin wird durch
die Waschfolge ein Trockenlaufen (bei zu wenig
Reinigungsfluid) von Walzen oder ein sogenanntes Aufschwimmen
(Aquaplaning) bei zuviel Reinigungsfluid vermieden. Durch die
frei wählbare Zeit einer Waschfolge sowie der Anzahl von
Waschfolgen, die Auswahl erfolgt durch den Bediener oder eine
lernende Steuerung, wird die Reinigungszeit und der Verbrauch
an Reinigungsfluid weiter reduziert. Nach der
erfindungsgemäßen Lösung kann bei Beibehaltung der Waschfolge
noch die Anzahl der zu reinigenden Walzen/Zylinder gewählt
werden. Dazu ist durch den Bediener oder eine entsprechende
Steuerung programmtechnisch zwischen vier Reinigungsschritten
auszuwählen. Die Reinigungsschritte werden im
Reinigungsverfahren nacheinander abgearbeitet oder es können
einzelne oder auch mehrere Schritte ausgewählt werden. Die
Reinigungsschritte beinhalten:
Je nach ausgewählten Reinigungsschritten (1 bis 3) nimmt durch Zuschalten von Plattenzylinder mit der entsprechenden Platte sowie des Feuchtwalzenzuges die Umfangslänge des Walzenzuges (Farbwalzenzug, Feuchtwalzenzug und Plattenzylinder) zu. Entsprechend der zunehmenden Umfangslänge nimmt die Anzahl und/oder die Reinigungszeit der Waschfolgen manuell oder gesteuert zu. Depending on the selected cleaning steps (1 to 3) takes Switching on plate cylinders with the corresponding plate and the dampening roller train the circumferential length of the roller train (Ink roller train, dampening roller train and plate cylinder). The number increases according to the increasing circumferential length and / or the cleaning time of the washing sequences manually or controlled to.
Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention is to be closer to an embodiment are explained.
Dabei zeigt:
- Fig. 1
- ein Druckwerk einer Offsetrotationsdruckmaschine.
- Fig. 1
- a printing unit of an offset rotary printing press.
Das Druckwerk besteht aus einem Farbkasten 7 mit
Farbkastenwalze 6, einem Farbheber 5 sowie einer Folge von
Farbwalzen, die als ein Farbwalzenzug 4 bezeichnet sind. Dem
Farbwalzenzug 4 ist eine Waschmittelsprüheinrichtung 10 und
eine Wassersprüheinrichtung 11 zugeordnet. Der Farbwalzenzug 4
ist einem Plattenzylinder 1, der eine Druckplatte trägt,
zugeordnet. Dem Plattenzylinder 1 ist weiterhin ein
Feuchtwalzenzug 3 zugeordnet, der über eine Brückenwalze mit
dem Farbwalzenzug 4 koppelbar ist. In bekannter Weise ist dem
Plattenzylinder 1 ein Gummituchzylinder 2 eines
Offsetdruckwerkes zugeordnet. Auf weitere Bauteile des
Druckwerkes wird nicht weiter eingegangen. In Drehrichtung des
Plattenzylinders 1 gesehen ist an einer der letzten Walzen des
Farbwalzenzuges 4 eine Rakeleinrichtung 8 angeordnet. Die
Rakeleinrichtung 8 ist in einem Drehgelenk aufgenommen und ist
mittels einer Betätigungseinrichtung 9 schwenkbar. Die
Betätigungseinrichtung 9 sowie die Waschmittelsprüheinrichtung
10 und die Wassersprüheinrichtung 11 sind mit einer Steuerung
schaltungstechnisch verbunden.The printing unit consists of an
Die Wirkungsweise ist wie folgt: Über die Steuerung wird die
Waschfolge aktiviert. Die Waschmittelsprüheinrichtung 10
sprüht eine definierte Zeit das Waschmittel auf den
benachbarten Farbwalzenzug 4. Das Waschmittel wird danach über
den Farbwalzenzug 4 verteilt bis annähernd gleiche
Schichtdicken von Farb- und Waschmittel vorhanden sind. Die
Rakeleinrichtung 8 wird periodisch an eine der letzten Walzen
des Farbwalzenzuges 4 angestellt und rakelt die Emulsion von
Farbe und Waschmittel ab. Der Farbwalzenzug 4 ist dabei vom
Plattenzylinder 1 abgestellt. Wie bereits beschrieben sind
Farbkasten 7, Farbkastenwalze 6 und Farbheber 5 in den
Farbwalzenzug 4 integriert. Ist ein Entleeren des Farbkastens
7 (Ausspachteln/Farbwechsel) erforderlich, werden alle
Farbschieber geschlossen und nach dem Entleeren wird der
Farbkasten abgeschwenkt. Auf der Farbkastenwalze 6 befindet
sich dann noch ein sehr dünner Farbfilm. Um diesen Farbfilm
mit zu reinigen wird der Farbheber 5 freigegeben, die
Streifenbreite des Farbhebers 5 auf Maximum eingestellt und
somit die Farbkastenwalze 6 durch die Kopplung von Farbheber 5
mit dem übrigen Farbwalzenzug 4 mitgereinigt. Die Waschfolge
gilt analog auch für die Verwendung von Wasser als
Reinigungsfluid. Bei Verwendung von Waschmittel wird als
Reinigungsfluid vorzugsweise ein Pflanzenölester eingesetzt.The mode of operation is as follows: The control is used to control the
Wash sequence activated. The
Die Waschfolge ist mehrfach wiederholbar. Über die Steuerung
wird der Plattenzylinder 1 mit dem Farbwalzenzug 4 in Kontakt
gebracht und somit die Druckplatte auf dem Plattenzylinder 1
mitgereinigt. Ist der Feuchtwalsenzug 3 ebenfalls zu reinigen,
so wird dieser über eine Brückenwalze mit dem Farbwalzenzug 4
gekoppelt. Wahlweise kann die Feuchtauftragwalze des
Feuchtwalzenzuges 3 zusätzlich an den Plattenzylinder 1
angestellt werden. Über die Steuerung ist es, neben der oben
bereits beschriebenen Reihenschaltung, weiterhin möglich
einzelne Baugruppen, wie den Feuchtwalzenzug 3 oder den
Plattenzylinder 1, zu überspringen und somit nur die unbedingt
zu reinigenden Baugruppen anzusteuern und in das
Reinigungsverfahren einzubeziehen. Nach Beendigung der
Waschfolgen mit Waschmittel wird abschließend mindestens eine
Waschfolge mit Wasser als Spülmittel durchgeführt. Für das
Reinigen von Farbwalzen 4 und Plattenzylinder 1 mit
entsprechender Platte bzw. von allen Walzen (Farbwalzenzug 4,
Feuchtwalzenzug 3) und Plattenzylinder 1 mit Platte sind
längere Sprüh-, Pausen- und Rakelzeiten zur Erreichung der
notwendigen Qualität erforderlich. Vorzugsweise werden dazu
die Reinigungszeiten um einen editierbaren Faktor verlängert.
Am Ende des Reinigungsverfahrens werden der Farbwalzenzug 4
und der Feuchtwalzenzug 3 vom Plattenzylinder 1 abgestellt. The washing sequence can be repeated several times. About the controller
the
- 11
- PlattenzylinderPlate cylinder
- 22nd
- GummituchzylinderBlanket cylinder
- 33rd
- FeuchtwalzenzugDampening roller train
- 44th
- FarbwalzenzugInk roller
- 55
- FarbheberColor lifter
- 66
- FarbkastenwalzeInk fountain roller
- 77
- FarbkastenPaint box
- 88th
- RakeleinrichtungDoctor device
- 99
- BetätigungseinrichtungActuator
- 1010th
- WaschmittelsprüheinrichtungDetergent spray device
- 1111
- WassersprüheinrichtungWater spray device
Claims (6)
- Process for cleaning cylinders and rollers of a printing unit of a printing press with a spray device and a doctor device which are arranged relative to at least one roller train, characterized in that the cleaning takes place in a multiply repeatable cleaning sequence freely choosable with respect to time or adjusting itself, wherein each individual cleaning sequence comprisesspraying on of cleaning agentdistribution of cleaning agent anda periodic doctoring in the roller train.
- Process according to Claim 1, characterized in that each individual cleaning sequence comprisesspraying on of waterdistribution of watera periodic doctoring in the roller train.
- Process according to Claim 1, characterized in that a vegetable oil ester is used as cleaning agent.
- Process according to Claims 1 to 3, characterized in that while maintaining the cleaning sequence in accordance as desireda cleaning of an inking roller train ora cleaning of the inking roller train and a plate on the plate cylinder ora cleaning of the inking roller train, the plate on the plate cylinder and a damping roller train takes place.
- Process according to Claim 4, characterized in that with increasing circulation length of rollers and cylinders, the number and/or the cleaning time of the cleaning sequences increases.
- Process according to Claims 1 to 5, characterized in that the cleaning times of the cleaning sequences are corrected to a value which corresponds to the increase or reduction of the peripheral length of rollers/cylinders to be cleaned.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19501806A DE19501806C5 (en) | 1995-01-21 | 1995-01-21 | Method for cleaning cylinders and rollers of a printing unit of a printing machine |
DE19501806 | 1995-01-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0722834A2 EP0722834A2 (en) | 1996-07-24 |
EP0722834A3 EP0722834A3 (en) | 1996-11-27 |
EP0722834B1 true EP0722834B1 (en) | 1998-01-28 |
Family
ID=7752024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95119527A Revoked EP0722834B1 (en) | 1995-01-21 | 1995-12-12 | Method for cleaning cylinders and rollers of a printing unit of a printing machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0722834B1 (en) |
AT (1) | ATE162761T1 (en) |
DE (2) | DE19501806C5 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19843363B4 (en) * | 1998-09-22 | 2006-04-13 | Koenig & Bauer Ag | Method for cleaning cylinders and rollers |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19645169C2 (en) * | 1996-11-02 | 2000-02-03 | Roland Man Druckmasch | Process for cleaning cylinders and rollers in a printing press |
DE19708435C2 (en) * | 1997-03-01 | 2001-05-10 | Heidelberger Druckmasch Ag | Process for cleaning an inking unit of a printing press |
DE19711545B4 (en) * | 1997-03-20 | 2005-08-04 | Heidelberger Druckmaschinen Ag | Inking unit for rotary printing presses |
DE29906466U1 (en) * | 1999-04-13 | 1999-07-01 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Printing press with an inking and dampening unit |
ATE457233T1 (en) | 2000-05-17 | 2010-02-15 | Komori Printing Mach | METHOD FOR REMOVAL OF INK FOR A PRINTING PRESS |
JP4824192B2 (en) * | 2000-05-17 | 2011-11-30 | 株式会社小森コーポレーション | Ink removal method for printing press |
DE10313014A1 (en) * | 2003-03-24 | 2004-10-07 | Baldwin Germany Gmbh | Rinsing and emptying apparatus for printing machine, has advance strand to convey washing liquid to an inlet at a cleaning device case and return strand to convey washing liquid coming from exhaust of case back to reservoir |
DE102007004217A1 (en) | 2007-01-27 | 2008-07-31 | Man Roland Druckmaschinen Ag | Method for cleaning of cylinders and rollers in offset printing machine, involves moving away dampening solution case from operating position for printing operation, in which dampening ductor is dipped in dampening solution |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3800702A (en) * | 1972-12-07 | 1974-04-02 | S & S Corrugated Paper Mach | Inking apparatus having automatic wash-up means |
US3913797A (en) * | 1974-02-11 | 1975-10-21 | Baldwin Gegenheimer Corp | Fluid dispensing system |
US4344361A (en) * | 1979-04-19 | 1982-08-17 | Baldwin-Gegenheimer Corporation | Automatic blanket cylinder cleaner |
DD227927A1 (en) * | 1984-11-02 | 1985-10-02 | Polygraph Leipzig | DEVICE FOR CLEANING A CYLINDER OF A PRINTING MACHINE |
DD236052A1 (en) * | 1985-04-12 | 1986-05-28 | Polygraph Leipzig | DEVICE FOR CLEANING CYLINDERS AND ROLLERS IN PRINTING MACHINES OF PRINTING MACHINES |
DD236053A1 (en) * | 1985-04-12 | 1986-05-28 | Polygraph Leipzig | DEVICE FOR APPLYING AND DISPENSING CLEANING FLUID |
JPH0764053B2 (en) * | 1988-12-06 | 1995-07-12 | 株式会社東京機械製作所 | Method and device for automatically cleaning liquid supply roller of rotary press |
DE4013465A1 (en) * | 1990-04-27 | 1991-10-31 | Heidelberger Druckmasch Ag | PRINTING MACHINE WITH WASHING DEVICE |
DE4126719A1 (en) * | 1991-08-13 | 1993-02-18 | Baldwin Gegenheimer Gmbh | NONTIONIC LIQUID PRESSURE WASHING MACHINE FOR MACHINE RUBBER CLEANING IN OFFSET PRINTING MACHINES |
DE9212582U1 (en) * | 1992-09-18 | 1992-11-26 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Device for washing an inking unit on printing machines |
-
1995
- 1995-01-21 DE DE19501806A patent/DE19501806C5/en not_active Expired - Fee Related
- 1995-12-12 EP EP95119527A patent/EP0722834B1/en not_active Revoked
- 1995-12-12 AT AT95119527T patent/ATE162761T1/en not_active IP Right Cessation
- 1995-12-12 DE DE59501375T patent/DE59501375D1/en not_active Revoked
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19843363B4 (en) * | 1998-09-22 | 2006-04-13 | Koenig & Bauer Ag | Method for cleaning cylinders and rollers |
Also Published As
Publication number | Publication date |
---|---|
EP0722834A3 (en) | 1996-11-27 |
DE19501806C5 (en) | 2005-08-18 |
EP0722834A2 (en) | 1996-07-24 |
DE59501375D1 (en) | 1998-03-05 |
ATE162761T1 (en) | 1998-02-15 |
DE19501806C2 (en) | 1998-10-01 |
DE19501806A1 (en) | 1996-07-25 |
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