EP1206324A1 - Device for tempering coatings - Google Patents

Device for tempering coatings

Info

Publication number
EP1206324A1
EP1206324A1 EP00947902A EP00947902A EP1206324A1 EP 1206324 A1 EP1206324 A1 EP 1206324A1 EP 00947902 A EP00947902 A EP 00947902A EP 00947902 A EP00947902 A EP 00947902A EP 1206324 A1 EP1206324 A1 EP 1206324A1
Authority
EP
European Patent Office
Prior art keywords
coating medium
coating
container
medium
intermediate container
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
EP00947902A
Other languages
German (de)
French (fr)
Other versions
EP1206324B1 (en
Inventor
Jürgen Schölzig
Hans-Georg Eitel
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 EP1206324A1 publication Critical patent/EP1206324A1/en
Application granted granted Critical
Publication of EP1206324B1 publication Critical patent/EP1206324B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus

Definitions

  • the invention relates to a device for tempering coating media according to the preamble of patent claim 1.
  • a device for coating a surface in a printing process is known. It describes that a coating composition for various systems for supplying the coating compositions to printing processes can be provided from a single storage container.
  • Each device for supplying the coating composition is described as a reactor vessel in which the temperature and thus also the viscosity of the coating composition can be influenced.
  • a heat exchanger and a temperature sensor system as well as a viscometer for determining the viscosity of the coating composition are provided in the reactor vessel.
  • the described device has the disadvantage that the coating composition can only be influenced in anticipation of the actual printing process or coating process. On the way between the reactor vessel and the printing process, the physical conditions of the coating composition can change again.
  • Another disadvantage of the described device is that not all of the process sequences are covered by the temperature control process sequences. For example, it is necessary to provide processes for rinsing or cleaning the applicator and the elements transporting the coating composition contained therein, in order to avoid permanent contamination by curing the coating composition. It is advantageous to influence the temperature of the cleaning process. This is not possible with the device described.
  • the object of the invention is therefore to influence the temperature control of a coating medium close to the printing process and, on the other hand, to ensure that cleaning processes can also be supported by temperature control mechanisms.
  • the application unit is assigned a temperature-controllable container that receives the coating medium.
  • this container can be supplied with both coating medium and a rinsing medium used for cleaning.
  • the flushing medium By feeding the flushing medium into the intermediate container, it can also be set to a temperature suitable for the cleaning process.
  • the intermediate container is suitably separated from the containers for supplying the coating medium. The arrangement shown ensures at all times that all elements that come into contact with the coating medium can be adequately cleaned.
  • Fig. 1 an order work
  • Fig. 2 a a supply device with a temperable to 2 c intermediate container in the normal
  • the application unit includes a printing cylinder 1 for guiding a sheet to be coated, a forme cylinder 2 for transferring a layer of the coating medium to the sheet to be printed, and a metering unit for producing the coating.
  • the metering unit consists of an applicator roller which is designed as an anilox roller 3 and is evenly provided with cups for transporting the coating medium.
  • a chamber doctor 4 is employed, the two doctor blades of which together with the body of the chamber doctor 4 form a space for feeding the coating medium.
  • the chamber squeegee 4 is set with its two squeegees against the anilox roller 3 and transfers the coating medium into the recesses of the anilox roller 3 by supplying the coating medium by means of a pump issued.
  • the printing form can be a uniform surface that covers the entire subject of a printing sheet, but it can also be provided only for parts of the printing sheet.
  • the coating medium is fed to the chambered doctor blade 4 by means of delivery lines A and discharged from there again by means of delivery lines B.
  • the delivery lines A and B are connected to the medium delivery system, which includes delivery and suction pumps.
  • FIGS. 2 a, 2 b and 2 c show a temperature control system in connection with an intermediate container 5.
  • the intermediate container 5 is arranged such that on the one hand it can be supplied with coating medium from a storage container 6.
  • the delivery lines A and B are also connected to the intermediate container 5.
  • the intermediate container 5 can also be connected to a container 7 containing a dirty medium.
  • the coating medium is guided through the intermediate container 5 during operation during coating and is set there to a specific temperature. This can be done by cooling or heating.
  • sensors are to be provided which record the temperature of the coating medium.
  • the sensors can be arranged on the intermediate container 5 or on the coating device itself. The processing process is ensured by the temperature control.
  • Suitable pipe and valve systems are provided for the corresponding connections.
  • the detergent can again be passed through the intermediate container 5.
  • a different temperature of the rinsing medium can now be set.
  • both the supply of the coating medium in the form of a replenishing pump 8 and the entire coating medium circuit are cleaned in an optimal manner and in the shortest possible time.
  • the Post-dosing pump 8 can even be used to pump the detergent around during cleaning.
  • the intermediate container 5 is therefore integrated as a temperature control container in the coating medium and the rinsing circuit.
  • the intermediate container 5 is an independent interchangeable element and can be used for heating or cooling depending on its function.
  • the advantage of an intermediate container 5 is, inter alia, that it does not act as a continuous heat exchanger. Pass-through heat exchangers are usually operated with high energy consumption due to the short dwell time of the medium to be tempered and only offer poor or extremely difficult cleaning options.
  • the intermediate container 5 can be used as a storage container for a print job. Then the connection to the storage container 6 is interrupted after the intermediate container 5 has been filled and the re-metering pump 8 pumps the coating medium around only in the circulating mode in order to maintain the consistency. This procedure can also be used to end a print job. Then the supply of coating medium from the storage container 6 to the intermediate container 5 is interrupted in good time, so that the remaining amount of coating medium in the intermediate container 5 is still sufficient to complete the printing job safely. This saves effort for the return of coating medium into the storage container 6 and time when cleaning the system.
  • different temperature control devices can also be provided on the application unit.
  • the doctor blade body including the doctor blade connected to it, can thus be set to a certain temperature, which in turn is transferred to the coating medium present in the chamber doctor blade 4.
  • the anilox roller 3 can be provided with a temperature control device known from inking units of rotary printing machines. For this purpose, the anilox roller 3 can be traversed with a series of flow channels, through which a heat transfer liquid flows alternately.
  • a roller coating unit can also be provided for coating by means of a chamber doctor blade and an anilox roller.
  • the temperature of the coating medium to be transferred can be set in exactly the same way by arranging temperature control devices on both rollers, possibly also only on one of the two rollers.
  • the system described can be expanded by the fact that in roller coating units or roller coating units, a coating pan that may be provided is comparable to the chamber doctor blade or the coating supply on a so-called squeeze roller system, for example a lacquer sword immersed in a coating stock between the two rollers forming the squeeze roller system.
  • cleaning liquids which are to be applied to the surfaces coming into contact with the coating medium can also be tempered, preferably heated.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)

Abstract

A coating system for supplying a coating medium to sheet material in a printing press. The coating system includes a tempering system operable for influencing the temperature of both a coating medium processed through the applicator system and rinsing mediums supplied to the applicator system for cleaning the system. The tempering system includes and intermediate container connected to the metering system of the applicator system, a first storage container connected to the intermediate container for containing a stored quantity of coating medium, and a second storage or discharge container connected to the intermediate container for a rinsing medium. The intermediate container includes a heat exchanger such that upon selected connection of either the first or second storage containers to the intermediate container, the cleaning medium or the rinsing medium can be individually tempered for optimum processing.

Description

Vorrichtung zum Temperieren von Beschichtungsmedien Device for tempering coating media
[Beschreibung][Description]
Die Erfindung betrifft eine Vorrichtung zum Temperieren von Beschichtungsmedien nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for tempering coating media according to the preamble of patent claim 1.
[Stand der Technik][State of the art]
In Auftragswerken für Druckmaschinen beispielsweise in Lak- kierwerken ist es bekannt die Viskosität des Beschichtungsme- diums über Mittel zum Temperieren zu regulieren. Dies dient dazu, die Verarbeitungsfähigkeit der Beschichtungsmedien für verschiedene Arten von Medien und für verschiedene Verfahrensweisen zum Auftragen regulieren zu können. Damit wird der Arbeitsbereich eines solchen Auftragswerkes erweitert.In application units for printing presses, for example in painting plants, it is known to regulate the viscosity of the coating medium by means of temperature control. This serves to regulate the processability of the coating media for different types of media and for different methods of application. This extends the work area of such a commissioned work.
Aus der US 5520739 A ist beispielsweise eine Vorrichtung zum Beschichten einer Oberfläche in einem Druckprozeß bekannt. Darin wird beschrieben, daß aus einem einzigen Vorratsbehälter eine Beschichtungszusammensetzung für verschiedene Systeme zur Zufuhr der Beschichtungszusammensetzungen zu Druckprozessen bereitgestellt werden kann. Jede Einrichtung zur Zufuhr der Beschichtungszusammensetzung ist als Reaktorbehälter beschrieben, in dem die Temperatur und damit auch die Viskosität der Beschichtungszusammensetzung beeinflusst werden können. Dazu sind in dem Reaktorbehälter ein Wärmetauscher und eine Temperatursensorik sowie ein Viskosimeter zur Bestimmung der Viskosität der Beschichtungszusammensetzung vorgesehen.From US 5520739 A, for example, a device for coating a surface in a printing process is known. It describes that a coating composition for various systems for supplying the coating compositions to printing processes can be provided from a single storage container. Each device for supplying the coating composition is described as a reactor vessel in which the temperature and thus also the viscosity of the coating composition can be influenced. For this purpose, a heat exchanger and a temperature sensor system as well as a viscometer for determining the viscosity of the coating composition are provided in the reactor vessel.
Die beschriebene Vorrichtung hat den Nachteil, daß die Beschichtungszusammensetzung nur im Vorgriff zum eigentlichen Druckprozeß bzw. Beschichtungsprozeß beeinflusst werden kann. Auf dem Weg zwischen dem Reaktorbehälter und dem Druckprozeß können sich die physikalischen Bedingungen der Beschichtungszusammensetzung wieder ändern. Ein weiterer Nachteil der beschriebenen Vorrichtung ist, daß nicht alle Verfahrensabläufe durch die Verfahrensabläufe der Temperierung erfasst werden. Es ist beispielsweise notwendig Abläufe für das Spülen bzw. Reinigen des Auftragwerkes und der darin enthaltenen die Beschichtungszusammensetzung transportierenden Elemente vorzusehen, um eine dauerhafte Verunreinigung durch aushärten der Beschichtungszusammensetzung zu vermeiden. Hierbei ist es Vorteilhaft die Temperatur des Reinigungsprozesses zu beeinflussen. Dies ist mit der be- schriebenen Vorrichtung nicht möglich.The described device has the disadvantage that the coating composition can only be influenced in anticipation of the actual printing process or coating process. On the way between the reactor vessel and the printing process, the physical conditions of the coating composition can change again. Another disadvantage of the described device is that not all of the process sequences are covered by the temperature control process sequences. For example, it is necessary to provide processes for rinsing or cleaning the applicator and the elements transporting the coating composition contained therein, in order to avoid permanent contamination by curing the coating composition. It is advantageous to influence the temperature of the cleaning process. This is not possible with the device described.
[Aufgabe der Erfindung]OBJECT OF THE INVENTION
Aufgabe der Erfindung ist es daher die Temperierung einer Beschichtungsmedium nahe am Druckprozeß zu beeinflussen und andererseits Sorge zu tragen, daß Reinigungsprozesse eben- falls durch Temperiermechanismen unterstützt werden können.The object of the invention is therefore to influence the temperature control of a coating medium close to the printing process and, on the other hand, to ensure that cleaning processes can also be supported by temperature control mechanisms.
Die Lösung dieser Aufgabe gestaltet sich nach dem Kennzeichen der Anspruchs 1. Hierbei kommt vorteilhaft zur Geltung, daß dem Auftragwerk ein das Beschichtungsmedium aufnehmender temperierbarer Behälter zugeordnet ist. Diesem Behälter können in besonders vorteilhafter Weise sowohl Beschichtungsmedium als auch ein der Reinigung dienendes Spühlmedium zugeführt werden. Durch die Zuführung des Spülmediums in den Zwischenbehälter ist dieses ebenfalls auf eine für den Reini- gungsprozeß geeignete Temperatur einstellbar. Hierbei wird der Zwischenbehälter in geeigneter Weise von den Behältern zur Zufuhr des Beschichtungsmediums getrennt. Durch die aufgezeigte Anordnung ist jederzeit sichergestellt, daß alle mit dem Beschichtungsmedium in Berührung kommenden Elemente angemessen gereinigt werden können.The solution to this problem is designed according to the characterizing part of claim 1. In this case, it is advantageous that the application unit is assigned a temperature-controllable container that receives the coating medium. In a particularly advantageous manner, this container can be supplied with both coating medium and a rinsing medium used for cleaning. By feeding the flushing medium into the intermediate container, it can also be set to a temperature suitable for the cleaning process. Here, the intermediate container is suitably separated from the containers for supplying the coating medium. The arrangement shown ensures at all times that all elements that come into contact with the coating medium can be adequately cleaned.
Die Wirkung der verbesserten Reinigung ist auch in weiterer vorteilhafter Anordnung mittels temperierter Elemente zur Führung und Dosierung des Beschichtungsmediums erzielbar. [Beispiele]The effect of the improved cleaning can also be achieved in a further advantageous arrangement by means of temperature-controlled elements for guiding and metering the coating medium. [Examples]
Die Erfindung wird im Folgenden an Hand von zeichnerischen Darstellungen näher erläutert. Darin zeigen:The invention is explained in more detail below with the aid of drawings. In it show:
Fig. 1 ein Auftragswerk undFig. 1 an order work and
Fig. 2 a eine Versorgungseinrichtung mit einem bis 2 c temperierbaren Zwischenbehälter im Normal imFig. 2 a a supply device with a temperable to 2 c intermediate container in the normal
SpühlbetriebSpühlbetrieb
In Figur 1 ist ein Auftragswerk beschrieben. Das Auftragswerk beinhaltet einen Druckzylinder 1 zur Führung eines zu beschichtenden Bogens, einen Formzylinder 2 zur Übertragung einer Schicht des Beschichtungsmediums auf den zu bedruckenden Bogen und ein Dosierwerk zu Erzeugung der Beschichtung. Das Dosierwerk besteht im gezeigt Fall aus einer Auftragwal- ze, die als Rasterwalze 3 ausgebildet ist und zum Transport des Beschichtungsmediums gleichmäßig mit Näpfchen versehen ist. An dieser Rasterwalze 3 ist ein Kammerrakel 4 angestellt, dessen beide Rakel gemeinsam mit dem Körper des Kammerrakels 4 einen Raum zum Zuführen des Beschichtungsmedi- ums bilden. Das Kammerrakel 4 wird mit seinen beiden Rakeln gegen die Rasterwalze 3 angestellt und überträgt unter Zufuhr des Beschichtungsmediums mittels einer Pumpe das Beschichtungsmedium in die Vertiefungen der Rasterwalze 3. Das Beschichtungsmedium wird beim Abwälzen der Rasterwalze 3 auf der Oberfläche des Formzylinders 2 an eine dort befestigte Druckform abgegeben. Die Druckform kann eine das gesamte Sujet eines Druckbogens überstreichende einheitliche Fläche sein, sie kann aber auch nur für Teile des Druckbogens vorgesehen sein. Dem Kammerrakel 4 wird das Beschichtungsmedium mittels Förderleitungen A zugeführt und mittels Förderleitungen B von dort wieder abgeführt. Die Förderleitungen A und B sind mit dem Mediumfördersystem, das Förder- und Saugpumpen beinhal- tet, verbunden.A commissioned work is described in FIG. The application unit includes a printing cylinder 1 for guiding a sheet to be coated, a forme cylinder 2 for transferring a layer of the coating medium to the sheet to be printed, and a metering unit for producing the coating. In the case shown, the metering unit consists of an applicator roller which is designed as an anilox roller 3 and is evenly provided with cups for transporting the coating medium. On this anilox roller 3, a chamber doctor 4 is employed, the two doctor blades of which together with the body of the chamber doctor 4 form a space for feeding the coating medium. The chamber squeegee 4 is set with its two squeegees against the anilox roller 3 and transfers the coating medium into the recesses of the anilox roller 3 by supplying the coating medium by means of a pump issued. The printing form can be a uniform surface that covers the entire subject of a printing sheet, but it can also be provided only for parts of the printing sheet. The coating medium is fed to the chambered doctor blade 4 by means of delivery lines A and discharged from there again by means of delivery lines B. The delivery lines A and B are connected to the medium delivery system, which includes delivery and suction pumps.
In den Figuren 2 a, 2 b und 2 c ist ein System zur Temperierung im Zusammenhang mit einem Zwischenbehälter 5 gezeigt. Der Zwischenbehälter 5 ist derart angeordnet, daß er einer- seits mit Beschichtungsmedium aus einem Vorratsbehälter 6 versorgt werden kann. Mit dem Zwischenbehälter 5 sind auch die Förderleitungen A und B verbunden. Andererseits kann der Zwischenbehälter 5 auch mit einem ein Schmutzmedium beinhaltenden Behälter 7 verbunden werden. Dadurch wird im Betrieb bei Beschichtung das Beschichtungsmedium durch den Zwischenbehälter 5 geführt und dort auf eine bestimmte Temperatur eingestellt. Dies kann durch Kühlung oder Heizung erfolgen. Dazu sind Sensoren vorzusehen, die die Temperatur des Beschichtungsmediums erfassen. Die Sensoren können an dem Zwischenbehälter 5 oder an der Beschichtungseinrichtung selbst angeordnet sein. Durch die Temperierung wird der Verarbeitungsprozeß sichergestellt .FIGS. 2 a, 2 b and 2 c show a temperature control system in connection with an intermediate container 5. The intermediate container 5 is arranged such that on the one hand it can be supplied with coating medium from a storage container 6. The delivery lines A and B are also connected to the intermediate container 5. On the other hand, the intermediate container 5 can also be connected to a container 7 containing a dirty medium. As a result, the coating medium is guided through the intermediate container 5 during operation during coating and is set there to a specific temperature. This can be done by cooling or heating. For this purpose, sensors are to be provided which record the temperature of the coating medium. The sensors can be arranged on the intermediate container 5 or on the coating device itself. The processing process is ensured by the temperature control.
Für die entsprechenden Verbindungen sind geeignete Leitungs- und Ventilsysteme vorgesehen.Suitable pipe and valve systems are provided for the corresponding connections.
Beim Reinigen des gesamten Lack- bzw. Beschichtungsmediumsy- stemes kann nun wiederum das Spülmittel durch den Zwischenbehälter 5 geführt werden. Je nach Art des zu verarbeitenden Beschichtungsmediums kann nun eine unterschiedliche Temperatur des Spülmediums eingestellt werden. Dadurch wird sowohl die Zufuhr des Beschichtungsmediums in Form einer Nachdosier- pumpe 8 als auch der gesamte Beschichtungsmedienkreislauf in optimaler Weise und in kürzest möglicher Zeit gereinigt. Die Nachdosierpumpe 8 kann sogar zum Umpumpen des Spülmittels beim Reinigen dienen.When cleaning the entire paint or coating medium system, the detergent can again be passed through the intermediate container 5. Depending on the type of coating medium to be processed, a different temperature of the rinsing medium can now be set. As a result, both the supply of the coating medium in the form of a replenishing pump 8 and the entire coating medium circuit are cleaned in an optimal manner and in the shortest possible time. The Post-dosing pump 8 can even be used to pump the detergent around during cleaning.
Auf die beschriebene Weise wird also der Zwischenbehälter 5 als Temperierbehälter in den Beschichtungsmedien- und den Spülkreislauf eingebunden. Der Zwischenbehälter 5 ist ein eigenständiges austauschbares Element und kann abhängig von seiner Funktion zum Heizen oder Kühlen eingesetzt werden. Der Vorteil eines Zwischenbehälters 5 besteht unter anderem darin, daß er nicht als DurchlaufWärmetauscher fungiert. Durchlaufwärmetauscher sind üblicherweise wegen der kurzen Verweildauer des zu temperierenden Mediums mit großem Energieaufwand zu betreiben und bieten nur mangelhafte bzw. extrem erschwerte Reinigungsmöglichkeiten.In the manner described, the intermediate container 5 is therefore integrated as a temperature control container in the coating medium and the rinsing circuit. The intermediate container 5 is an independent interchangeable element and can be used for heating or cooling depending on its function. The advantage of an intermediate container 5 is, inter alia, that it does not act as a continuous heat exchanger. Pass-through heat exchangers are usually operated with high energy consumption due to the short dwell time of the medium to be tempered and only offer poor or extremely difficult cleaning options.
Bei einer entsprechenden Dimensionierung kann der Zwischenbehälter 5 als Vorratsbehälter für einen Druckauftrag verwendet werden. Dann wird die Verbindung zum Vorratsbehälter 6 nach Füllung des Zwischenbehälters 5 unterbrochen und die Nachdo- sierpumpe 8 pumpt das Beschichtungsmedium lediglich im Umwälzbetrieb zur Aufrechterhaltung der Konsistenz um. Dieses Verfahren kann auch zum Beenden eines Druckauftrages verwendet werden. Dann wird die Zufuhr von Beschichtungsmedium vom Vorratsbehälter 6 zum Zwischenbehälter 5 rechtzeitig unter- brochen, sodaß die verbleibende Menge an Beschichtungsmedium im Zwischenbehälter 5 noch ausreicht, um den Druckauftrag noch sicher zu beenden. Damit wird Aufwand für das Rückfördern von Beschichtungsmedium in den Vorratsbehälter 6 und Zeit beim Reinigen des System eingespart.With an appropriate dimensioning, the intermediate container 5 can be used as a storage container for a print job. Then the connection to the storage container 6 is interrupted after the intermediate container 5 has been filled and the re-metering pump 8 pumps the coating medium around only in the circulating mode in order to maintain the consistency. This procedure can also be used to end a print job. Then the supply of coating medium from the storage container 6 to the intermediate container 5 is interrupted in good time, so that the remaining amount of coating medium in the intermediate container 5 is still sufficient to complete the printing job safely. This saves effort for the return of coating medium into the storage container 6 and time when cleaning the system.
Zur Sicherstellung einer gleichmäßigen Verarbeitung unterschiedlichster Beschichtungsmedien können an dem Auftragswerk weiterhin unterschiedliche Temperiereinrichtungen vorgesehen. Im Bereich des Kammerrakels 4 kann im Rakelkörper oder an diesen angesetzt eine Wärmetauschereinrichtung beliebiger bekannter Art eingesetzt werden. Damit läßt sich der Rakelkörper inklusive der mit diesem verbundenen Rakel auf eine bestimmte Temperatur einstellen, die wiederum auf das in dem Kammerrakel 4 vorhandene Beschichtungsmedium übertragen wird. Weiterhin kann die Rasterwalze 3 mit einer aus Farbwerken von Rotationsdruckmaschinen bekannten Temperiereinrichtung versehen sein. Dazu kann die Rasterwalze 3 mit einer Reihe von Strömungskanälen durchzogen sein, die wechselseitig mit einer Temperierflüssigkeit durchströmt werden.To ensure uniform processing of a wide variety of coating media, different temperature control devices can also be provided on the application unit. In the area of the chambered doctor blade 4 can be in the doctor blade body or a heat exchanger device of any known type can be used. The doctor blade body, including the doctor blade connected to it, can thus be set to a certain temperature, which in turn is transferred to the coating medium present in the chamber doctor blade 4. Furthermore, the anilox roller 3 can be provided with a temperature control device known from inking units of rotary printing machines. For this purpose, the anilox roller 3 can be traversed with a series of flow channels, through which a heat transfer liquid flows alternately.
Eine weiter Möglichkeit zur Temperierung besteht darin den Formzylinder 2 mit einer wie von der Rasterwalze 3 her bekannten Temperiereinrichtung zu versehen. Alternativ kann zur Beschichtung mittels eines Kammerrakels und einer Rasterwalze auch ein Walzenbeschichtungswerk vorgesehen sein. Durch Anordnung von Temperiereinrichtungen an beiden Walzen gegebenenfalls auch nur an einer der beiden Walzen läßt sich die Temperatur des zu übertragenden Beschichtungsmediums genauso einstellen. Ausgeweitet werden kann das beschriebene System dadurch, daß in Walzenlackierwerken bzw. Walzenbeschichtungseinheiten auch eine eventuell vorzusehende Lackwanne vergleichbar mit dem Kammerrakel oder der Lackzulauf an einem sogenannten Quetschwalzensystem, zum Beispiel ein in einen Lackvorrat zwischen den das Quetschwalzensystem bildenen beiden Walzen tauchendes Lackschwert, temperierbar ist.Another possibility for temperature control is to provide the forme cylinder 2 with a temperature control device known from the anilox roller 3. Alternatively, a roller coating unit can also be provided for coating by means of a chamber doctor blade and an anilox roller. The temperature of the coating medium to be transferred can be set in exactly the same way by arranging temperature control devices on both rollers, possibly also only on one of the two rollers. The system described can be expanded by the fact that in roller coating units or roller coating units, a coating pan that may be provided is comparable to the chamber doctor blade or the coating supply on a so-called squeeze roller system, for example a lacquer sword immersed in a coating stock between the two rollers forming the squeeze roller system.
Weiterhin können Reinigungsflüssigkeiten, die auf die mit dem Beschichtungsmedium in Verbindung kommenden Oberflächen aufzutragen sind, ebenfalls temperiert, vorzugsweise erwärmt werden. [Bezugszeichenliste]Furthermore, cleaning liquids which are to be applied to the surfaces coming into contact with the coating medium can also be tempered, preferably heated. [REFERENCE LIST]
1 Druckzylinder1 impression cylinder
2 Formzylinder2 forme cylinders
3 Rasterwalze 4 Kammerrakel3 anilox roller 4 chamber doctor blade
5 Zwischenbehälter5 intermediate containers
6 Vorratsbehälter6 storage containers
7 Schmutzbehälter7 dirt container
8 Nachdosierpumpe8 replenishment pump
A ZuführleitungA supply line
B Abführleitung B discharge line

Claims

[Patentansprüche] [Claims]
1. Vorrichtung zum Temperieren von Beschichtungsmedien in einem Auftragswerk bestehend aus einem Bogentransportsy- ste , einem Formzylinder zum Auftragen des Beschichtungs- mediums auf einen Bedruckstoff, einer Auftragwalze zum Auftragen des Beschichtungsmediums auf den Formzylinder bzw. eine darauf angeordnete Druckform, einem Dosiersystem zur Festlegung der Menge des auf die Auftragwalze übertragenen Beschichtungsmediums und einem System zur Zufuhr eines Beschichtungsmediums zu dem Auftragswerk, wobei Mittel zur Erfassung der Temperatur des Beschichtungsmediums und Mittel zur Beeinflussung der Temperatur des Beschichtungsmediums im Bereich der Transportwege des Beschichtungsmediums vorgesehen sind, dadurch gekennzeichnet, daß in schaltbarer Verbindung zwischen einem Vorratsbehälter (6) für Beschichtungsmedium, dem Auftragswerk und einem Schmutzmittelbehälter (7) ein temperierbarer Zwischenbehälter (5) angeordnet ist, derart, daß die Tempe- ratur des Beschichtungsmediums vor der Dosierung oder eines Spülmediums beim Reinigen der das Beschichtungsmedium führenden Elemente beeinflussbar ist.1. Device for tempering coating media in an applicator consisting of a sheet transport system, a forme cylinder for applying the coating medium to a printing material, an applicator roller for applying the coating medium to the forme cylinder or a printing form arranged thereon, a dosing system for determining the Amount of the coating medium transferred to the application roller and a system for supplying a coating medium to the application unit, means for detecting the temperature of the coating medium and means for influencing the temperature of the coating medium in the region of the transport paths of the coating medium being provided, characterized in that in a switchable connection A temperature-controlled intermediate container (5) is arranged between a storage container (6) for the coating medium, the application unit and a dirt container (7), such that the temperature of the coating medium before de r dosage or a rinsing medium when cleaning the elements carrying the coating medium can be influenced.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die schaltbare Verbindung derart ausgeführt ist, daß wenigstens eine Verbindung des Vorratsbehälter (6) über den Zwischenbehälter (5) zum Auftragswerk herstellbar ist, und/oder daß wenigstens eine Verbindung zwischen einem Ablauf des Zwischenbehälters (5) über eine Förderpumpe zu Zulauf des Zwischenbehälters (5) bei abgeschalteter Verbindung zum Vorratsbehälter (6) herstellbar ist, und/oder daß wenigstens eine Verbindung zwischen dem Zwischenbehälter (5) und dem Schmutzmittelbehälter (7) bei abgeschalteter Verbindung zum Vorratsbehälter (6) herstellbar ist.2. Device according to claim 1, characterized in that the switchable connection is designed such that at least one connection of the storage container (6) via the intermediate container (5) to the applicator can be made, and / or that at least one connection between an outlet of the intermediate container (5) can be produced via a feed pump to the inlet of the intermediate container (5) when the connection to the storage container (6) is switched off, and / or that at least one connection between the intermediate container (5) and the dirt container (7) can be established when the connection to the storage container (6) is switched off.
3. Verfahren zum Temperieren von Beschichtungsmedien in einem Auftragswerk bestehend aus einem Bogentransportsy- ste , einem Formzylinder zum Auftragen des Beschichtungsmediums auf einen Bedruckstoff, einer Auftragwalze zum Auftragen des Beschichtungsmediums auf den Formzylinder bzw. eine darauf angeordnete Druckform, einem Dosiersystem zur Festlegung der Menge des auf die Auftragwalze übertragenen Beschichtungsmediums und einem System zur Zufuhr eines Beschichtungsmediums zu dem Auftragswerk, wobei Mittel zur Erfassung der Temperatur des Beschich- tungs ediums und Mittel zur Beeinflussung der Temperatur des Beschichtungsmediums im Bereich der Transportwege des Beschichtungsmediums vorgesehen sind, dadurch gekennzeichnet, daß einem in schaltbarer Verbindung zwischen einem Vor- ratsbehälter (6) für Beschichtungsmedium, dem Auftragswerk und einem Schmutzmittelbehälter (7) angeordneten temperierbaren Zwischenbehälter (5) im Beschichtungsbe- trieb aus dem Vorratsbehälter (6) Beschichtungsmedium zugeführt und von diesem in temperiertem Zustand an das Auftragswerk abgeführt wird, und daß zur Reinigung des gesamten Systems der Zwischenbehälter (5) mit dem Schmutzmittelbehälter (7) verbunden wird, derart daß im System umgeführtes Spülmittel durch den Zwischenbehälter (5) geführt wird.3. Process for tempering coating media in an applicator comprising a sheet transport system, a forme cylinder for applying the coating medium to a printing material, an applicator roller for applying the coating medium to the forme cylinder or a printing form arranged thereon, a metering system for determining the amount of coating medium transferred to the application roller and a system for supplying a coating medium to the application unit, means for detecting the temperature of the coating medium and means for influencing the temperature of the coating medium in the region of the transport paths of the coating medium being provided, characterized in that one in Switchable connection between a storage container (6) for coating medium, the applicator and a dirt container (7) arranged temperature-controlled intermediate container (5) in the coating operation from the storage container (6) htungsmedium supplied and discharged from this in a tempered state to the applicator, and that for cleaning the entire system, the intermediate container (5) is connected to the dirt container (7), so that detergent transferred in the system is passed through the intermediate container (5).
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß bei geringerem Bedarf an Beschichtungsmedium die Verbindung zum Vorratsbehälter (6) unterbrochen und das Be- schichtungsmedium im Zwischenbehälter (5) umgewälzt wird.4. The method according to claim 3, characterized in that when there is less need for coating medium, the connection to the reservoir (6) is interrupted and the loading Layering medium is circulated in the intermediate container (5).
Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß beim Reinigen Spülmittel durch einen Kreislauf über den Zwischenbehälter (5) , den Schmutzmittelbehälter (7) und das Auftragswerk unter Einschluß einer Zuführpumpe für das Beschichtungsmedium geführt wird, wobei das Spülmittel temperiert wird. A method according to claim 3, characterized in that during cleaning, the detergent is passed through a circuit via the intermediate container (5), the dirt container (7) and the application unit, including a feed pump for the coating medium, the detergent being tempered.
EP00947902A 1999-08-07 2000-06-30 Device for tempering coatings Expired - Lifetime EP1206324B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19937468 1999-08-07
DE19937468A DE19937468A1 (en) 1999-08-07 1999-08-07 Device for tempering coating media
PCT/EP2000/006130 WO2001010569A1 (en) 1999-08-07 2000-06-30 Device for tempering coatings

Publications (2)

Publication Number Publication Date
EP1206324A1 true EP1206324A1 (en) 2002-05-22
EP1206324B1 EP1206324B1 (en) 2003-07-30

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EP00947902A Expired - Lifetime EP1206324B1 (en) 1999-08-07 2000-06-30 Device for tempering coatings

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US (1) US6607601B1 (en)
EP (1) EP1206324B1 (en)
JP (1) JP4642300B2 (en)
AT (1) ATE246049T1 (en)
CZ (1) CZ299663B6 (en)
DE (2) DE19937468A1 (en)
WO (1) WO2001010569A1 (en)

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DE102009033046A1 (en) 2008-07-25 2010-01-28 Heidelberger Druckmaschinen Ag System for coating a printing material with a fluid
JP6349197B2 (en) * 2014-08-08 2018-06-27 株式会社小森コーポレーション Liquid transfer device

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DE2426743A1 (en) * 1974-06-01 1975-12-18 Agfa Gevaert Ag DEVICE FOR COATING PAPER OR FILM
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JPS59142151A (en) * 1983-02-03 1984-08-15 Komori Printing Mach Co Ltd Varnish coater for print
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Also Published As

Publication number Publication date
CZ299663B6 (en) 2008-10-08
DE50003134D1 (en) 2003-09-04
EP1206324B1 (en) 2003-07-30
CZ2002309A3 (en) 2002-07-17
WO2001010569A1 (en) 2001-02-15
US6607601B1 (en) 2003-08-19
JP2003506227A (en) 2003-02-18
JP4642300B2 (en) 2011-03-02
DE19937468A1 (en) 2001-03-08
ATE246049T1 (en) 2003-08-15

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