EP0716924B1 - Waschanlage für Rotationskörper einer Druckmaschine - Google Patents
Waschanlage für Rotationskörper einer Druckmaschine Download PDFInfo
- Publication number
- EP0716924B1 EP0716924B1 EP95119195A EP95119195A EP0716924B1 EP 0716924 B1 EP0716924 B1 EP 0716924B1 EP 95119195 A EP95119195 A EP 95119195A EP 95119195 A EP95119195 A EP 95119195A EP 0716924 B1 EP0716924 B1 EP 0716924B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- return
- wash
- filter
- filter device
- flow
- 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
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/06—Cleaning arrangements or devices for offset 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
- B41P2235/30—Recovering used solvents or residues
- B41P2235/31—Recovering used solvents or residues by filtering
Definitions
- the invention relates to a washing system for Rotary body of a printing press, which several to washing rotating body, such as in particular plate cylinders, blanket cylinders, Impression cylinders, inking rollers, dampening rollers and Guide rolls according to claim 1.
- EP-A-0 419 289 shows a cleaning system for Printing cylinder of a printing press.
- the invention is intended to achieve the object that Cleaning of rotating bodies in printing machines too rationalize in such a way that there are fewer devices, less time and less washing liquid, where it should be possible for all rotating bodies to use the same washing liquid, and being pollution is largely avoided.
- the invention has the advantage that with a single Car wash several or all to be cleaned Rotary body of a printing press can be cleaned can.
- One storage container becomes one Washing liquid all rotating bodies to be cleaned fed and then through a common to them Filter device back into the storage container returned.
- the washing liquid is used after not thrown away as environmental pollution, but cleaned and regenerated and then used again. This is it is possible to clean the rotating body with a lot Wash washing liquid without environmental problems arise.
- the filters for cleaning the Washing liquids have a very long operating time, before they need to be cleaned.
- the one from the filters excreted seizure is mud or solid and can be disposed of much more environmentally friendly are polluted as a constantly flowing Liquid.
- FIG. 1 On the left edge of FIG. 1 is a partial area Printing unit 1 of an offset printing machine shown and below this representation is in one Cutout enlargement shown as during a Cleaning process a washing device 2 to one Blanket cylinder 3 is pivoted. The one for this required washing liquid is over a Flow line 4 with a flow pump 5 from a Supply container 6 and supplied via a Return line 7 into a return tank 8 dissipated. The return of washing liquid from the Washing device 2 in the return tank 8 happens under the action of gravity and does not need any Pump.
- a filter line 10 runs from the return tank 8 to a filter device 11 and from here on to Storage container 6.
- a filter pump upstream of the filter device 11 12 and a valve 13 are provided in the filter feed line 10 .
- a flushing line 15 with a flush valve 16 leads from Storage container 6 to the filter line 10 in the Section between the valve 13 and the filter pump 12th
- the filter device 11 consists of a candle pre-filter 20 and one in the direction of flow behind this horizontal depth filter 30.
- the filter elements 22 of the candle prefilter 20 and the filter pack 32 of the Depth filters 30 are each in one a frame 40 standing boiler 24 or 34. In Fig. 2nd are these in a lifted out of the cauldrons Position shown.
- the boilers have pressure covers 25, 35 and mud drain cocks 26, 36.
- the filter line 10 opens into the upper third of the Boiler 24 of the candle pre-filter 20 tangentially in this.
- the candle pre-filter opens in a similar way 20 leading to the depth filter 30 Connection line 42 in the upper third of the boiler 34 tangential in this.
- An electrical control device for control of the valves and for supplying and controlling the pumps is housed in a switch box 50.
- To this Control device belongs in the return tank 8 arranged level switch 81, the when reached of a certain liquid level.
- the washing device 2 is each after a longer Printing operating time of the printing press to the Blanket cylinder 3 pivoted up, then one short cleaning process. At the Cleaning process leads the flow pump 5 fresh and filtered washing liquid from the storage container 6 to the washing device 2 and the dirt-laden Washing liquid runs from the washing device 2 in the return tank 8 from.
- the Level switch 81 the filter pump 12, which at closed valve 16 and open valve 13 the Return liquid through the filter device 11 in drives the reservoir 6.
- volume of the container 8th and 6 and the throughput of the filters and Pumps are dimensioned so that the filter operation and subsequent rinse cycle are finished when the Printing operation of the printing press again for one Wash cycle is interrupted.
- the embodiment of Fig. 1 also includes additional 2/2-way valves 86, 87, 88, 89 and 90, which a flushing of the filter device 11 in Allow reverse flow direction when from the valve positions shown in Fig. 1 each in their other possible valve position can be switched, the Flush valve 16 also of its illustrated Closed position switched to an open position becomes, whereas the return valve 13 the Filter line 10 upstream of the filter pump 12 as drawn remains closed. For this Backwashing the filter device 11 is the Filter pump 12 switched off and the flow pump 5 switched on.
- the additional valves 86, 87, 88, 89 and 90 are in Fig. 1 in a valve position for the Washing operation and the forward rinsing shown which above have been described.
- valves 86, 87, 88, 89 and 90 there is a first valve 86 on the pressure side of the filter pump 12 in the open position and must be closed for the backwash; a second valve 87 is in the closed position in one the filter pump 12 and the first valve 86 bridging bypass 91; a third valve 88 in The open position is in the filter line 10 between the filter device 11 and the Storage container 6; a fourth valve 89 in The open position is on the pressure side of the Flow pump 5 in the flow 4 to connect them Flow pump 5 with the washing device 2; the fifth Valve 90 in the closed position is also connected to the Pressure side of the feed pump 5 connected to Connection of this flow pump 5 with the filter line 10 on a between the filter device 11 and the third valve 88 located point. The fourth valve 89 is open when the fifth valve 90 is closed and vice versa.
- valves 86 through 90 could also other switching means are used.
- Washing system is fresh and recovered washing liquid from the Storage container 6 via a flow distributor 52 in the Flow line 4 not only to the washing device 2 of the blanket cylinder 3, but depending on Optionally required for one or more others Washing devices 2.2 to 2.5 for washing others Rotational bodies such as one Impression cylinder 3.2, plate cylinder 3.3, one Inking roller 3.4 and a dampening roller 3.5 des Printing unit 1 and / or one or more others Printing units 1.2 of the printing press, each via one Flow connection line 4.2 to 4.5.
- Flow connection lines 4.2 to 4.5 can adjustable throttles or adjustable pressure regulators or adjustable valves, so that the supply of washing liquid to each washing device 2 and 2.2 to 2.5 of each printing unit 1 and 1.2 individually can be adjusted or regulated.
- the prefilter 20 of the filter device 11 can one or more additional filters 60 upstream be upstream, as shown schematically in Fig. 5 is shown to coarse dirt and fine dirt to be able to filter separately. This enables one environmentally friendly disposal of the various Types of dirt and fine filters need less to be cleaned frequently.
- a washing system contains for each Washing device 2 and 2.2 to 2.5 each a separate Flow line 4 and 4.2 to 4.5, in which each a feed pump 5 and 5.2 to 5.5 is located from which is shown schematically in Fig. 6 only 3 pieces are representative of all pumps.
- At this 6 may be the return line 7 and return connection lines 7.2 - 7.5 the Washing devices 2 and 2.2. to 2.5 according to Fig. 5 fluidly connected to the return tank 8 be or each to a separate return tank 8 and 8.2 to 8.5 may be connected, of which in FIG. 6 only the return tank 8 and schematically two more Return tank representative of the Return tanks 8.2 to 8.5 are shown, the Number of washing devices 2.2 to 2.5 corresponds.
- the reservoir 6 can be continuous or intermittently fresh as needed Washer fluid are supplied.
- the Washing devices 2, 2.2 to 2.5 can all be the same or be different.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
- Fig. 1
- schematisch eine Waschanlage nach der Erfindung,
- Fig. 2
- eine Filtereinrichtung der Waschanlage in Vorderansicht,
- Fig. 3
- die Filtereinrichtung in Seitenansicht,
- Fig. 4
- die Filtereinrichtung in Rückansicht,
- Fig. 5
- schematisch eine besondere Ausführungsform der Waschanlage von Fig. 1,
- Fig. 6
- eine weitere besondere Ausführungsform nach der Erfindung der Waschanlage von Fig. 1.
Claims (6)
- Waschanlage für Rotationskörper einer Druckmaschine, welche mehrere zu waschende Rotationskörper aufweist, wie beispielsweise Plattenzylinder (3.3), Gummituchzylinder (3), Gegendruckzylinder (3.2), Farbwerkswalzen (3.4), Feuchtwerkswalzen (3.5) und Leitwalzen, mit folgenden Merkmalen der Waschanlage: eine Vielzahl von Waschvorrichtungen (2, 2.2 bis 2.5) zum maschinellen Waschen der Rotationskörper (3, 3.2 bis 3.5); einen mit allen Waschvorrichtungen (2, 2.2 bis 2.5) über mindestens eine Vorlaufleitung (4, 4.2 bis 4.5) strömungsmäßig verbundenen Vorratsbehälter (6) für Waschflüssigkeit; mindestens einen mit den Waschvorrichtungen (2, 2.2 bis 2.5) über eine oder mehrere Rücklaufleitungen (7, 7.2 bis 7.5) verbundenen Rücklaufbehälter (8, 8.2 bis 8.5) zur Aufnahme von Rücklauf-Waschflüssigkeit; eine im Strömungsweg der Rücklauf -Waschflüssigkeit zwischen dem Rücklaufbehälter (8) oder den Rücklaufbehältern (8, 8.2 bis 8.5) und dem Vorratsbehälter (6) angeordnete Filtereinrichtung (11); mindestens eine Pumpe (12) zum Pumpen der RücklaufWaschflüssigkeit aus dem Rücklaufbehälter (8) oder den Rücklaufbehältern (8, 8.2 bis 8.5) durch die Filtereinrichtung (11) hindurch in den Vorratsbehälter (6), derart, daß die RücklaufWaschflüssigkeit von allen Waschvorrichtungen (2, 2.2 bis 2.5) durch die gleiche Filtereinrichtung (11) hindurch in den Vorratsbehälter (6) fließt; Umschaltmittel (13, 16, 86, 87, 88, 90) zur Spülung der Filtereinrichtung (11) in RückwärtsStrömungsrichtung.
- Waschanlage nach Anspruch 1,
dadurch gekennzeichnet, daß die Filtereinrichtung (11) in Strömungsrichtung der Rücklauf-Waschflüssigkeit nacheinander mehrere Filter (60, 20, 30) aufweist, die nacheinander eine feinere Wirkung haben. - Waschanlage nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch einen in dem betreffenden Rücklaufbehälter (8, 8.2 - 8.5) angeordneten Niveauschalter (81), der die zu diesem Rücklaufbehälter (8) zugehörige Filterpumpe (12) bei Erreichen eines bestimmten Pegels der Waschflüssigkeit einschaltet. - Waschanlage nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch mindestens eine Freispülleitung (15) vom Vorratsbehälter (6) zur Filtereinrichtung (11) zur Spülung der Filtereinrichtung (11) mit Waschflüssigkeit aus dem Vorratsbehälter (6). - Waschanlage nach Anspruch 4,
dadurch gekennzeichnet, daß die Freispülleitung (15) in die Filterleitung (10) auf deren zwischen dem Rücklaufbehälter (8, 8.2 bis 8.5) und der Filterpumpe (12) liegenden Abschnitt mündet und Ventile (13, 16) in diesen Leitungen vorgesehen sind. - Waschanlage nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Leitungen (10, 42), welche waschflüssigkeit in die Filter (20, 30) der Filtereinrichtung (11) einspeisen, ungefähr im oberen Drittel der Höhe dieser Filter (20, 30) tangential in sie münden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4445212A DE4445212A1 (de) | 1994-12-17 | 1994-12-17 | Waschanlage für Rotationskörper einer Druckmaschine |
DE4445212 | 1994-12-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0716924A1 EP0716924A1 (de) | 1996-06-19 |
EP0716924B1 true EP0716924B1 (de) | 1998-07-08 |
Family
ID=6536216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95119195A Expired - Lifetime EP0716924B1 (de) | 1994-12-17 | 1995-12-06 | Waschanlage für Rotationskörper einer Druckmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0716924B1 (de) |
DE (2) | DE4445212A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19723830C2 (de) * | 1997-06-06 | 2003-01-30 | Roland Man Druckmasch | Verfahren zum Auffangen und Entsorgen gebrauchter Waschflüssigkeit von einer Waschvorrichtung für eine Druckmaschine und Vorrichtung zur Durchführung des Verfahrens |
GB0027049D0 (en) * | 2000-11-06 | 2000-12-20 | Dynamic Products Ltd | Method and apparatus for coating porous or permeable substrates |
DE102007051000A1 (de) * | 2007-10-25 | 2009-04-30 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Reinigung geschlossener Räume einer Maschine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0419289A2 (de) * | 1989-09-22 | 1991-03-27 | Oxy-Dry Corporation | System zum Reinigen eines Druckzylinders |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3896730A (en) * | 1974-02-22 | 1975-07-29 | Koppers Co Inc | Wash-up system for flexographic printers |
DE3005236C2 (de) * | 1980-02-13 | 1983-05-19 | Mathias Bäuerle GmbH, 7742 St Georgen | Waschwerk für eine Offsetmaschine |
DE3025639A1 (de) * | 1980-07-07 | 1982-01-21 | Maschinenfabrik Goebel Gmbh, 6100 Darmstadt | Einrichtung zum reinigen eines an einer stahlstichdruckmaschine befindlichen wischzylinders |
DE8801323U1 (de) * | 1988-02-03 | 1988-03-17 | Gisch, Lieselotte, 2081 Alveslohe, De | |
DE4116762A1 (de) * | 1991-05-23 | 1992-11-26 | Roland Man Druckmasch | Vorrichtung zum waschen eines zylinders einr druckmaschine |
DE4118944A1 (de) * | 1991-06-08 | 1992-12-10 | Ind Siebdruck Systeme Neckarwe | Reinigungsvorrichtung fuer druckmasken |
DE4129189C2 (de) * | 1991-09-03 | 1997-02-27 | Roland Man Druckmasch | Vorrichtung zum Waschen eines Zylinders einer Druckmaschine |
DE9115948U1 (de) * | 1991-12-21 | 1992-02-20 | Loessner, Wolfgang, 6229 Kiedrich, De |
-
1994
- 1994-12-17 DE DE4445212A patent/DE4445212A1/de not_active Withdrawn
-
1995
- 1995-12-06 DE DE59502754T patent/DE59502754D1/de not_active Expired - Fee Related
- 1995-12-06 EP EP95119195A patent/EP0716924B1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0419289A2 (de) * | 1989-09-22 | 1991-03-27 | Oxy-Dry Corporation | System zum Reinigen eines Druckzylinders |
Also Published As
Publication number | Publication date |
---|---|
DE4445212A1 (de) | 1996-06-20 |
DE59502754D1 (de) | 1998-08-13 |
EP0716924A1 (de) | 1996-06-19 |
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