EP0043624B1 - Cleaning device for a wiping cylinder of an intaglio printing machine - Google Patents
Cleaning device for a wiping cylinder of an intaglio printing machine Download PDFInfo
- Publication number
- EP0043624B1 EP0043624B1 EP19810200739 EP81200739A EP0043624B1 EP 0043624 B1 EP0043624 B1 EP 0043624B1 EP 19810200739 EP19810200739 EP 19810200739 EP 81200739 A EP81200739 A EP 81200739A EP 0043624 B1 EP0043624 B1 EP 0043624B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- cleansing agent
- outlet
- separator
- way valve
- 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
Links
- 238000004140 cleaning Methods 0.000 title claims description 23
- 239000003599 detergent Substances 0.000 claims description 9
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 8
- 238000005352 clarification Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
- B41F9/16—Removing or recovering ink from wiping mechanisms
-
- 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 device for cleaning a wiping cylinder located on a steel engraving printing press with a container for the cleaning agent, with an outlet for the cleaning agent located thereon, a device provided with a pump for regenerating the cleaning agent and an inlet for the cleaning agent container regenerated cleaning agents.
- a device of the outlined type is known from DE-AS 12 29 547.
- This device has a clarification chamber for the purpose of regenerating the cleaning agent.
- this clarifying chamber is only in a somewhat imperfect way to regenerate the so-called wiping agent for cleaning the forme cylinder, provided that the clarifying chamber - which is always the case under practical conditions - should not have too large dimensions.
- the cleaning agent is only incompletely cleaned by a clarification chamber, which in turn means that it accumulates with color very quickly and can only be used for a relatively short time.
- the device according to the invention is shown schematically in an exemplary embodiment in the attached FIG. In a manner that does not limit the inventive concept.
- machine parts that are not essential are not shown in the figure because of a clearer representation, since they are already sufficiently known to the person skilled in the art.
- a wiper cylinder 2 touches the surface of the forme cylinder 1.
- the wiper cylinder can be driven and revolve in such a way that it touches the surface of the forme cylinder at the point of contact between the forme cylinder and the wiper cylinder 1 rotates in the opposite or the same direction.
- the wiping cylinder is at least partially surrounded by a container 3 for holding the cleaning liquid.
- This cleaning liquid is largely referred to as "wiping liquid" in specialist circles.
- At least two drain points 4 and 5 are provided on the container 3, with the aid of which the cleaning liquid 6 present in the container can drain off.
- the drain point 4 is at a distance 8 and the drain point 5 is at a distance 9 from the bottom 7 of the container 3.
- the distance 8 can also assume the dimension zero, so that the drain point 4 is at the lowest point of the container 3.
- the drain points are also arranged one below the other in such a way that they can remove the cleaning liquid 6 from different levels from the container.
- a drain 10 is assigned to drain 4 and a drain 11 to drain 5.
- the lines 10 and 11 are connected to the first three-way valve 12, while a pump 13 is arranged between the first three-way valve 12 and the second three-way valve 14.
- a plurality of components of a colloidal liquid mixture or liquid-solid mixture with the help of the centrifugal force, rotating in the manner of a centrifuge is arranged, which is a so-called ter can be self-cleaning separator.
- a line 17 leads from the separator 16 to the inlet point 15.
- the separator 16 is not only arranged between the pump 13 or the three-way valves 12 and 14 and the inlet point 15, but also between the outlet point 4 and the inlet point 15. Furthermore, a line 18 leads from the second three-way valve 14 to the line 17. A shut-off valve 19 is attached between the separator 16 and the confluence of the line 18 into the line 17.
- the cleaning liquid runs from the container 3 via the drain point 4 into the line 10, passes the first three-way valve 12 with a valve position such that the line 11 is blocked, then passes into the pump 13, then into the second three-way valve 14, which is switched so that the line 18 is blocked to then run to the separator 16.
- the cleaning agent is in turn cleaned there.
- the cleaned cleaning agent runs through the opened valve 19 and the line 17 to the inlet point 15 in order to be able to re-enter the container 3 in a cleaned form.
- the three-way valve 12 is adjusted such that it connects the line 11 to the pump 13 and blocks the flow through the line 10.
- the second three-way valve 14 is simultaneously adjusted in such a way that it connects the pump 13 to the line 18 and blocks the inlet to the separator 16, while the valve 19 is also blocked.
- the cleaning liquid is removed from the container 3 at a relatively high point for the short period of time for cleaning the separator. This is a point at which relatively pure cleaning agent is present in the container 3 in contrast to the position of the drain point 4 at which relatively dirty cleaning agent is to be found.
- the separator 16 can be cleaned quickly. After cleaning the separator, the three-way valves 12 and 14 and the valve 19 are switched over again so that the original circuit of the cleaning agent can be maintained again.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung bezieht sich auf eine Einrichtung zum Reinigen eines an einer Stahlstichdruckmaschine befindlichen Wischzylinders mit einem Behälter für das Reinigungsmittel, mit an diesem befindlichem Ablauf für das Reinigungsmittel, einer mit einer Pumpe versehenen Einrichtung zum Regenerieren des Reinigungsmittels und einem an dem Reinigungsmittelbehälter befindlichen Einlauf für das regenerierte Reinigungsmittel.The invention relates to a device for cleaning a wiping cylinder located on a steel engraving printing press with a container for the cleaning agent, with an outlet for the cleaning agent located thereon, a device provided with a pump for regenerating the cleaning agent and an inlet for the cleaning agent container regenerated cleaning agents.
Eine Einrichtung der umrissenen Art ist aufgrund der DE-AS 12 29 547 bekannt. Diese Einrichtung besitzt eine Klärkammer zum Zwecke des Regenerierens des Reinigungsmittels. Diese Klärkammer ist jedoch bei dem außerordentlich hohen Anfall an Farbstoffen, welche beim Reinigen des Formzylinders von Stahlstichdruckmaschinen anfallen, nur in recht unvollkommener Weise geeignet, das sogenannte Wischmittel zum Reinigen des Formzylinders zu regenerieren, sofern die Klärkammer - was unter praktischen Bedingungen immer gegeben ist - nicht allzu große Abmessungen aufweisen soll. Dadurch, daß die Größe der Klärkammer unter praktischen Bedingungen begrenzt ist, wird das Reinigungsmittel durch eine Klärkammer nur unvollkommen gereinigt, was wiederum bedeutet, daß sie sich sehr schnell mit Farbe anreichert und nur relativ kurze Zeit verwendet werden kann.A device of the outlined type is known from DE-AS 12 29 547. This device has a clarification chamber for the purpose of regenerating the cleaning agent. However, given the extraordinarily high amount of dyes that occur when cleaning the forme cylinder of steel engraving printing machines, this clarifying chamber is only in a somewhat imperfect way to regenerate the so-called wiping agent for cleaning the forme cylinder, provided that the clarifying chamber - which is always the case under practical conditions - should not have too large dimensions. Because the size of the clarification chamber is limited under practical conditions, the cleaning agent is only incompletely cleaned by a clarification chamber, which in turn means that it accumulates with color very quickly and can only be used for a relatively short time.
Wegen des sehr hohen Anteils von Farbe ist die Kapazität der Klärkammer sehr schnell erschöpft, weshalb die Klärkammer in relativ kurzen zeitlichen Intervallen gereinigt werden muß. Dies bedeutet einen fortlaufenden hohen Bedienungsaufwand. Analoges gilt für die Verwendung von Durchlauffiltern. Diese Filter setzen sich beim Betrieb der Einrichtung sehr schnell zu, so daß auch diese Filter in recht kurzen zeitlichen Intervallen gewechselt werden müssen.Because of the very high proportion of color, the capacity of the clarification chamber is exhausted very quickly, which is why the clarification chamber must be cleaned in relatively short time intervals. This means an ongoing high level of operating effort. The same applies to the use of flow filters. These filters clog up very quickly when the device is in operation, so that these filters also have to be changed at very short time intervals.
Es besteht daher die Aufgabe, die Standzeit des Reinigungsmittels zu verlängern, sowie die Reinigungsvorrichtung für Reinigungszwecke bequem vom Reinigungsmittelkreislauf abschalten zu können.There is therefore the task of extending the service life of the cleaning agent and of being able to conveniently switch off the cleaning device for cleaning purposes from the cleaning agent circuit.
Diese Aufgabe wird durch das in dem Anspruch umrissenen Patentbegehren gelöst.This object is achieved by the patent request outlined in the claim.
Durch die erfindungsgemäße Verwendung eines Separators zum Reinigen des Reinigungsmittels wird dieses während des Laufes der Stahlstichdruckmaschine kontinuierlich gereinigt. Dabei ist der Reinigungseffekt wesentlich größer als mit Hilfe der bisher verwendeten Klärkammern oder Durchlauffilter. Das Reinigen verstopfter Filter oder Klärkammern wird vollkommen vermieden. Desgleichen wird die Standzeit des Reinigungsmittels, d. h. diejenige Zeit, in welcher das Reinigungsmittel seinerseits rein genug ist, um den Wischzylinder der Stahlstichdruckmaschine zu reinigen, wesentlich verlängert. Die kurzen Zeiten, welche notwendig sind, um den Separator selbst zu reinigen, sind sehr kurz. Aufgrund der ebenfalls vorgeschlagenen Schaltung werden diese Zeiten zudem noch dadurch überbrückt, daß relativ gut gereinigtes Reinigungsmittel umgewälzt werden kann, wohingegen relativ schlecht gereinigtes Reinigungsmittel für diesen kurzen Zeitraum nicht verwendet wird. Die Zeiten, in welchen der Separator selbst gereinigt wird, werden bei Verwendung eines sogenannten selbstreinigenden Separators noch um ein weiteres verkürzt. Auf diese Weise wird ein vollkommen kontinuierlicher Betrieb der Wischeinrichtung und damit der Stahlstichdruckmaschine selbst erzielt.The inventive use of a separator for cleaning the cleaning agent cleans it continuously while the steel engraving printing press is running. The cleaning effect is much greater than with the help of the clarification chambers or flow filters used so far. The cleaning of clogged filters or clarification chambers is completely avoided. Likewise, the life of the detergent, i.e. H. the time in which the cleaning agent is in turn pure enough to clean the wiping cylinder of the steel engraving printing machine is considerably extended. The short times required to clean the separator itself are very short. Due to the circuit also proposed, these times are also bridged by the fact that relatively well cleaned cleaning agent can be circulated, whereas relatively poorly cleaned cleaning agent is not used for this short period of time. The times in which the separator itself is cleaned are shortened even further when a so-called self-cleaning separator is used. In this way, a completely continuous operation of the wiping device and thus of the steel engraving printing machine itself is achieved.
Die erfindungsgemäße Einrichtung ist in einer den Erfindungsgedanken nicht begrenzenden Weise in einem Ausführungsbeispiel in der beigefügten Fig. schematisch abgebildet. In der Fig. sind im vorliegenden Zusammenhang nicht wesentliche Maschinenteile wegen einer übersichtlicheren Darstellungsweise nicht gezeichnet, da sie dem Fachmann ohnehin hinreichend bekannt sind.The device according to the invention is shown schematically in an exemplary embodiment in the attached FIG. In a manner that does not limit the inventive concept. In the present context, machine parts that are not essential are not shown in the figure because of a clearer representation, since they are already sufficiently known to the person skilled in the art.
Zum Reinigen des Formzylinders 1 einer Stahlstichdruckmaschine zum Herstellen von Wertscheinen, beispielsweise Banknoten oder Briefmarken, berührt ein Wischzylinder2 die Oberfläche des Formzylinders 1. Der Wischzylinder kann dabei angetrieben sein und derart umlaufen, daß er an der Berührungsstelle von Formzylinder und Wischzylinder zu der Oberfläche des Formzylinders 1 gegenläufig oder gleichläufig umläuft.To clean the
Der Wischzylinder ist mindestens teilweise von einem Behälter 3 für die Aufnahme der Reinigungsflüssigkeit umgeben. Diese Reinigungsflüssigkeit wird in Fachkreisen weitgehend auch als « Wischflüssigkeit » bezeichnet. An dem Behälter 3 sind mindestens zwei Ablaufstellen 4 und 5 vorgesehen, mit deren Hilfe die in dem Behälter anstehende Reinigungsflüssigkeit 6 ablaufen kann. Vom Boden 7 des Behälters 3 ist die Ablaufstelle 4 um den Abstand 8 und die Ablaufstelle 5 um den Abstand 9 entfernt. Der Abstand 8 kann auch das Maß Null annehmen, so daß die Ablaufstelle 4 an der untersten Stelle des Behälters 3 liegt. Auf diese Weise sind die Ablaufstellen auch untereinander so angeordnet, daß sie die Reinigungsflüssigkeit 6 aus unterschiedlichen Niveaus aus dem Behälter abführen können.The wiping cylinder is at least partially surrounded by a
Der Ablaufstelle 4 ist eine Leitung 10 und der Ablaufstelle5 eine Leitung 11 zugeordnet. Die Leitungen 10 und 11 sind mit dem ersten Dreiwegeventil 12 verbunden, während eine Pumpe 13 zwischen dem ersten Dreiwegeventil 12 und dem zweiten Dreiwegeventil 14 angeordnet ist. Zwischen dem zweiten Dreiwegeventil 14 und der Zulaufstelle 15 für das regenerierte Reinigungsmittel ist ein mehrere Komponenten eines kolloidalen Flüssigkeitsgemisches oder Flüssigkeit-Feststoffgemisches mit Hilfe der Fliehkraft arbeitender, nach Art einer Zentrifuge umlaufender Separator 16 angeordnet, welcher ein sogenannter selbstreinigender Separator sein kann. Vom Separator 16 führt eine Leitung 17 zu der Zulaufstelle 15. Aufgrund der Verbindungsleitungen ist der Separator 16 nicht allein zwischen der Pumpe 13 oder den Dreiwegeventilen 12 und 14 und der Zulaufstelle 15, sondern auch zwischen der Ablaufstelle 4 und der Zulaufstelle 15 angeordnet. Ferner führt eine Leitung 18 von dem zweiten Dreiwegeventil 14 zu der Leitung 17. Zwischen dem Separator 16 und der Einmündung der Leitung 18 in die Leitung 17 ist ein Absperrventil 19 angebracht.A
Während des normalen Betriebsablaufes läuft die Reinigungsflüssigkeit aus dem Behälter3 über die Ablaufstelle4 in die Leitung 10, passiert das erste Dreiwegeventii 12 bei einer Ventilstellung derart, daß die Leitung 11 gesperrt ist, gelangt danach in die Pumpe 13, dann in das zweite Dreiwegeventil 14, welches so geschaltet ist, daß die Leitung 18 gesperrt ist, um danach dem Separator 16 zuzulaufen. Dort wird das Reinigungsmittel seinerseits gereinigt. Nach dem Reinigungsvorgang läuft das gereinigte Reinigungsmittel durch das geöffnete Ventil 19 und die Leitung 17 an die Zulaufstelle 15, um in gereinigter Form wieder in den Behälter 3 eintreten zu können.During the normal operating sequence, the cleaning liquid runs from the
Wenn der Separator seinerseits gereinigt werden soll, was relativ kurze Zeit insbesondere dann beansprucht, wenn es ein selbstreinigender Separator ist, wird das Dreiwegeventil 12 derart verstellt, daß es die Leitung 11 mit der Pumpe 13 verbindet und den Durchfluß durch die Leitung 10 sperrt. Das zweite Dreiwegeventil 14 wird gleichzeitig derart verstellt, daß es die Pumpe 13 mit der Leitung 18 verbindet und den Zulauf zum Separator 16 sperrt, während das Ventil19 ebenfalls gesperrt wird. Auf diese Weise wird die Reinigungsflüssigkeit für den kurzen Zeitraum des Reinigens des Separators an einer relativ weit oben gelegenen Stelle des Behälters 3 entnommen. Dies ist eine Stelle, an der relativ reines Reinigungsmittel in dem Behälter3 ansteht im Gegensatz zu der Position der Ablaufstelle 4, an welcher relativ verschmutztes Reinigungsmittel anzutreffen ist.If the separator itself is to be cleaned, which takes a relatively short time, particularly if it is a self-cleaning separator, the three-
Wenn die Ventile in dem zuletzt genannten Sinne verstellt worden sind, kann der Separator 16 schnell gereinigt werden. Nach der Reinigung des Separators werden die Dreiwegeventile 12 und 14 sowie das Ventil 19 wieder umgestellt, damit der ursprüngliche Kreislauf des Reinigungsmittels wieder eingehalten werden kann.If the valves have been adjusted in the latter sense, the
Claims (1)
- Device for cleaning a wiping cylinder (2) mounted to an intaglio printing press, with a tank (3) for the cleansing agent (6), having an outlet (4) for the cleansing agent, a device (16) provided with a pump (13) for regenerating the cleansing agent and an inlet (15) in the cleansing agent tank (3) for the regenerated cleansing agent (6), characterized by at least one further outlet (5) in the cleansing agent tank (3) for the passage of the cleansing agent (6), said outlet, compared with the outlet (4), having a different distance (8, 9) from the bottom (7) of the cleansing agent tank (3), a first three-way valve (12) connected at its entrance to the two or further outlet lines (10, 11) as well as a second three-way valve (14), the pump (13) being located between the three-way valves (12, 14), a centrifugal separator (16) following the two three-way valves (12, 14) and designed to function as a cleaning device, a further line (18) between the third outlet of the second three-way valve (14) and the inlet (15) by means of which the pump (13) separated from the separator (16) can be connected direct to the inlet (15).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803025639 DE3025639A1 (en) | 1980-07-07 | 1980-07-07 | DEVICE FOR CLEANING A WIPING CYLINDER ON A STEEL PRINTING MACHINE |
DE3025639 | 1980-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0043624A1 EP0043624A1 (en) | 1982-01-13 |
EP0043624B1 true EP0043624B1 (en) | 1984-02-08 |
Family
ID=6106559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810200739 Expired EP0043624B1 (en) | 1980-07-07 | 1981-06-30 | Cleaning device for a wiping cylinder of an intaglio printing machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0043624B1 (en) |
DE (1) | DE3025639A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4129189A1 (en) * | 1991-09-03 | 1993-03-04 | Roland Man Druckmasch | DEVICE FOR WASHING A CYLINDER OF A PRINTING MACHINE |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8801323U1 (en) * | 1988-02-03 | 1988-03-17 | Gisch, Lieselotte, 2081 Alveslohe | Device for washing dampening rollers |
CH686001A5 (en) * | 1990-04-18 | 1995-11-30 | Andre Robert Louis Monnerat | Process for regeneration inks for printing security documents by printing technique intaglio. |
DE4445212A1 (en) * | 1994-12-17 | 1996-06-20 | Baldwin Gegenheimer Gmbh | Washing system for rotating body of a printing machine |
DE19520550C2 (en) * | 1995-06-06 | 1999-03-25 | Roland Man Druckmasch | Cleaning device for printing press cylinders |
DE19546972A1 (en) * | 1995-12-15 | 1997-06-19 | Baldwin Gegenheimer Gmbh | Washing machine of a machine of the graphic industry |
UA28061C2 (en) * | 1996-09-02 | 2000-10-16 | Де Ля Рю Жіорі С.А. | method and device for obtaining FRESH washing solution and treating spent solution |
DE202005018085U1 (en) * | 2005-11-19 | 2006-01-19 | Technotrans Ag | Cleaning device for the dampening solution of an offset printing machine |
CN101665020B (en) | 2008-09-03 | 2013-01-09 | 海德堡印刷机械股份公司 | Method for operating a cleaning apparatus of a printing press |
EP2363290A1 (en) * | 2010-03-05 | 2011-09-07 | KBA-NotaSys SA | Installation and process for recycling wiping solution of one or more intaglio printing presses |
JP2016022586A (en) * | 2014-07-16 | 2016-02-08 | 株式会社小森コーポレーション | Wiping device for intaglio printing machine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2236800A (en) * | 1937-09-27 | 1941-04-01 | Louisville Drying Machinery Co | Method of treating distillery wastes |
FR1161915A (en) * | 1956-11-30 | 1958-09-08 | Improvements to the inkwell supply circuit in rotary printing machines, of the gravure printing type | |
DE1229547B (en) * | 1963-12-06 | 1966-12-01 | Gualtiero Giori | Device for cleaning the wiping cylinder of a steel engraving machine, which circulates in a solvent |
US3679483A (en) * | 1968-05-02 | 1972-07-25 | Bell Tech Systems Inc | Apparatus for cleaning members with fluids |
US3580261A (en) * | 1969-05-12 | 1971-05-25 | John W Key | Printing screen cleaner |
US3923658A (en) * | 1973-12-12 | 1975-12-02 | Burdon Eng Ltd E B | Vehicle washing plant |
-
1980
- 1980-07-07 DE DE19803025639 patent/DE3025639A1/en not_active Withdrawn
-
1981
- 1981-06-30 EP EP19810200739 patent/EP0043624B1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4129189A1 (en) * | 1991-09-03 | 1993-03-04 | Roland Man Druckmasch | DEVICE FOR WASHING A CYLINDER OF A PRINTING MACHINE |
Also Published As
Publication number | Publication date |
---|---|
EP0043624A1 (en) | 1982-01-13 |
DE3025639A1 (en) | 1982-01-21 |
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