EP2156899A1 - Device for direct or indirect application of a fluid or paste application medium to a mobile material web - Google Patents
Device for direct or indirect application of a fluid or paste application medium to a mobile material web Download PDFInfo
- Publication number
- EP2156899A1 EP2156899A1 EP09165136A EP09165136A EP2156899A1 EP 2156899 A1 EP2156899 A1 EP 2156899A1 EP 09165136 A EP09165136 A EP 09165136A EP 09165136 A EP09165136 A EP 09165136A EP 2156899 A1 EP2156899 A1 EP 2156899A1
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- EP
- European Patent Office
- Prior art keywords
- application
- metering
- application medium
- medium
- rib
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- 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.)
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Classifications
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- 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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
- B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
- D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
Definitions
- the invention relates to a device for the indirect or direct application of a liquid or pasty application medium to a movable material web, comprising a functional unit with an applicator and a device for metering application medium and a functional unit at least indirectly supporting carrying unit.
- a device in which at least one elongated functional unit in direct contact with the application medium and an elongate support element carrying the at least one functional unit are provided. Since the application medium pumped by the device is usually heated as a result of the flow through various device components and by circulation devices or by the action of extra heating means, there are significant temperature differences between the application medium, heated by the application medium portions of the functional unit and the colder support element, which are reflected in changes in length, which are exposed depending on the connection between the support unit and functional unit very high voltages. The deformations also lead to an impairment of the order.
- the at least one functional unit is connected to the support member via a plurality of individual spaced-apart webs, a thermal shielding of the functional unit and the support member against each other and a Allow compensation of thermally induced relative changes in length between the functional unit and the support element. Due to the thermal decoupling of support unit and functional unit, the different length expansions of these and their consequences can be largely avoided, however, in devices for applying liquid or pasty application medium with an applicator and one of these functionally downstream equalization device, which is mounted on the applicator after as observed before severe deformation of individual components, in particular the equalization device, which can lead to a delay or to bending in relation to the surface to be coated, unless appropriate countermeasures are taken.
- the deformations can be considered in the longitudinal direction of the applicator lead to considerable inaccuracies in the order or make a constant readjustment or a complicated deflection compensation system required.
- the invention is therefore based on the object, a device for direct or indirect application of application medium of the type mentioned in such a way that deflections within the functional unit as a result of different changes in length and changes over the longitudinal extension of the functional unit considered as simple as possible and avoided changing constraints on a job process are customizable to achieve high quality job results.
- a device for the indirect or direct application of application medium to a movable material web, comprising a functional unit with an application device and a device for metering application medium and a carrying unit which is at least indirectly the functional unit, is characterized in that means for thermal decoupling between the application device and the device for metering application medium are provided.
- the solution according to the invention enables a desired thermal shielding between the application device, in particular the application media supply and the device for metering application medium, whereby the length changes caused by these can be compensated in a simple manner and, furthermore, optimum functioning of the entire functional unit can be guaranteed can.
- a functional unit is understood to mean any application concept-specific device which comes into direct contact with the latter for the processing and manipulation or manipulation of the application medium and / or the order produced with the application medium.
- This comprises at least one application device and a device for metering the application medium, which can be designed as a separate structural unit or else can be part of the application device.
- these may include pre-and end metering devices, such as a free-jet applicator, including paint distribution tube, supply channels, and applicator nozzle.
- the functional unit may further comprise various assemblies or individual parts to ensure, if necessary, replacement or maintenance of these components, in particular the parts exposed to high wear.
- Application device is understood to mean a device which makes possible an application of media to the surface to be coated. This generally includes an application media supply and an applicator chamber or nozzle coupled thereto.
- the inventors have recognized that a separation of the application medium contacting parts of the application medium supply and the device for metering application medium and the provision of the thermal shield between these components, which are connected via a rule formed by the rib-shaped elementsAuspehnungskompensations adopteden that in conventional devices occurring adverse deflection phenomena can be effectively minimized in a simple manner or even completely avoided.
- the thermal decoupling thereby prevents heat transfer from the application device, in particular the application media supply to the device for metering application medium and thus a conditional by differently tempered areas deformation of these components themselves, while the designated means these preferably firmly connect with each other, but at the same time an unhindered linear expansion of these allows both relative to each other, so that a deformation caused due to the heated coating medium does not transfer to the means for metering.
- the device on the one hand can be made very dimensionally stable in terms of its operation and works very precisely even without further additional measures.
- the use of relatively complex and expensive deflection compensation systems is generally superfluous. these can be additionally used, but considerably reduced in size and simplified in terms of the required deflection compensation requirement.
- Another advantage of the solution according to the invention is that different materials and materials can be selected between the individual elements of the functional unit.
- special materials can be used for the parts contacting the application medium.
- the thermal decoupling can be done directly between the applicator and the device for metering or indirectly.
- the means for thermal decoupling between application device and means for metering are arranged.
- the connection of the functional unit can then be done by connecting the applicator or the device for metering application medium with the support unit.
- the first option offers the advantage of a more compact design.
- the connection of the device for metering application medium and the Aufrags Marie takes place each directly to the support unit, free of a connection with each other and the thermal decoupling via the connection between the support unit and functional unit, in particular the applicator and the device for metering application medium.
- the means for thermal decoupling of application device and device for metering application medium are formed by the means for thermal decoupling of support unit and functional unit.
- the means solely by the provided additional intermediate elements, preferably in the form of rib-shaped elements or webs and the enclosable between them Form air layer.
- the means are formed directly by the connecting elements, which are further designed and configured to compensate for a deformation, in particular length extension of the connecting elements.
- insulation material specifically in the connections between applicator device and device for metering. In particular, insulation layers on the individual components of the application device and / or the device for metering are conceivable.
- the thermal insulation layer may be air, a coating applied to the respective elements that can be coupled to one another via the rib-shaped elements-application device and device for metering-or separate elements with insulating properties that are integrated into the connection.
- the design of the insulation layer is preferably adapted to the respective geometry of the mutually associated connection surfaces of the functional unit and of the support element, wherein the insulation layer can also assume sealing functions.
- connection between the application device and the device for metering preferably takes place detachably, so that they can be easily separated from one another for maintenance purposes or for exchange with other elements, in particular during wear. Furthermore, this also makes it possible to couple different components and different designs of applicators and metering units with each other.
- the connections are non-positive or positive.
- the individual components in the connection can also be designed and arranged to be movable relative to one another be, which allows for easier compensation of manufacturing tolerances and an adjustment in positioning their position to each other.
- the inventive solution for a functional unit from an application device with a job media supply and at least one application nozzle and a leveling device, which is arranged separately from the actual application nozzle used.
- the leveling device is preferably a doctor element which extends in the width direction of the surface to be coated.
- the thermal decoupling is preferably carried out between the doctor blade associated Rakelhalterung and the order medium supply the applicator, wherein the applicator is used simultaneously with for clamping the doctor element.
- the X direction corresponds to the longitudinal direction and in the installed position usually the machine direction.
- the Y-direction corresponds in installed position of the illustrated elements of the width direction and thus the direction transverse to the longitudinal direction, while the Z direction describes the height direction.
- FIG. 1 illustrates in a simplified schematic representation of the structure of an inventively designed device 1 for direct or indirect application of a liquid or pasty application medium 2 on a movable, in particular moving material M.
- the material web M is preferably in the form of a fibrous web, in particular as a paper or board web.
- the device 1 comprises a preferably multi-part functional unit 4 which is supported on a support unit 3, in particular in the form of an elongate support beam.
- the order of the coating medium 2 takes place either indirectly on a carrier surface 9 formed by a counter-roller 8, from which the order then takes place on the material web M, or directly on the supported by the counter-roller 8 web M.
- the direction of rotation of the counter-roller 8 is in the drawing illustrates by means of an arrow.
- means 10 for thermal decoupling of application device 5, in particular application media supply 6, and device 7 for metering application medium 2 are provided. These are arranged directly between the Aufrags worn 5 and the device 7 for metering application medium 2. Furthermore, means 11 for thermal decoupling of the functional unit 4 and the carrying unit 3 are provided in the illustrated case.
- the applicator 5 is exemplified as a nozzle applicator comprising at least one over the width of the material to be coated web M or the support surface 9 extending applicator, here denoted by 12, which is coupled to the order media supply 6, which at least one, preferably over the entire Width of the material web to be coated M extending distribution channel 13 includes, which is coupled to the respective application nozzle 12.
- the exit from the application nozzle 12 takes place on the support surface 9 or supported by this material web M.
- the application device 5 downstream in the functional direction is the device 7 for metering the application medium 2, here in the form of a leveling device 14, extending over the entire width of the support surface 9 extends.
- the leveling device 14 comprises a doctor element 15, which is mounted in a doctor blade holder 16.
- the squeegee holder 16 comprises means 17 for fixing the squeegee element 15, in particular for clamping, and further means for positioning and for generating a corresponding pressing force against the mating surface in the form of a pressing device 19 for realizing a corresponding metering gap 18.
- Doctor blade element 15 and blade holder 16 thereby form a structural unit, which is designed in several parts.
- the pressing device 19 preferably comprises a pressing element 20 which extends across the width and generates a constant or variable pressing force acting on the doctor element 15 and positions it relative to the support surface 9 and holds it in this position.
- About the positioning of the doctor element 15 relative to the support surface 9 of the metering gap 18 is set in width and thus the corresponding layer thickness of the application medium 2.
- the individual elements of the equalizer 14, in particular the means for clamping 17 and the pressing device 19 are formed in several parts.
- the doctor element 15 is clamped by the means 17 for attachment between the application nozzle 12 and the doctor blade holder 16. This is realized by way of example by generating a corresponding clamping force.
- the pressing device 20 comprises in the simplest case, a pressing element, which is also mounted in the doctor blade holder 16.
- this example comprises a pressure bar 21, on which an elastic element 22 is mounted, which is effective with its directed to the doctor element 15 surface at this.
- the pressure bar 21 is mounted movably in the longitudinal direction relative to the doctor element 15 and thus enables the adjustment of the corresponding metering gap 18.
- the means 10 for thermal decoupling between the device 7 for metering application medium 2 and the application medium supply 6, in particular the application device 5, include illustrated case web or rib-shaped elements 23, in particular a plurality of in the longitudinal direction of the functional unit 4, which corresponds to installation position of the width direction of the device 1 and thus Y-direction, spaced from each other arranged rib-shaped elements 23, at both ends of each device 7 and the application medium supply 6, in particular the application device 5, are arranged.
- the rib-shaped elements 23 are formed in the illustrated case such that these with their vertical Direction top end portion 24 are connected to the doctor blade holder 16 of the device 7 for metering application medium 2 and further in a vertically lower end portion with the actual application device 5 and theWhenmediumzuschreib 6, in particular the application nozzle 12.
- the rib-shaped elements 23 are formed such that these are suitable to be coupled to the application nozzle 12 at at least two locations or articulation areas, a first articulation area 25.1 and a second articulation area 25.2, wherein between the two articulation areas 25.1 and 25.2, which are preferably arranged offset from one another in the vertical direction, the central distribution channel 13 is arranged.
- the rib-shaped elements 23 enclose the element receiving the distributor channel 13 at least by a partial region of its outer circumference. Furthermore, means 11 for thermal decoupling between the support unit 3 and the functional unit 4 are provided. These are likewise a plurality of rib-shaped elements 26 which are arranged at a spacing from one another transversely to the longitudinal direction and which are connected in each case to the carrying unit 3 and the functional unit 4 in their end regions, in which case the connection with the application device 5 or the application medium feed 6 takes place.
- the rib-shaped elements 26, which can also be referred to as webs, take over the thermal decoupling of the functional unit 4 from the support unit 3 and also the rib-shaped elements 23 thermal decoupling of the device 7 for metering application medium from the application medium supply 6 and the actual application device 5 in Form of the application nozzle 12. These allow a thermal shielding of the individual functional units or elements against each other and a compensation of thermally induced relative changes in length.
- the thermal shield can be further improved by at least one thermal insulation layer, which is preferably formed from air, wherein the individual rib-shaped elements 23 and 26, so to speak, bridge the thermal insulation layer.
- connections between the means 10 for thermal decoupling between the means 7 for metering of application medium 2 and the order media supply 6 and the Application device 5 is preferably detachable. This possibility offers the advantage of a corresponding adjustability of the position assignment to one another. However, it is also conceivable compounds in non-detachable form, for example cohesive compounds in the form of welded joints.
- the connection may also be made in releasable connection with mobility within the connection in at least one direction.
- the elements coupled to one another via the means 10, in particular the means 7 for metering application medium 2 and the application medium supply 6-containing elements, in particular the applicator 5, are made of materials which have the same or substantially the same coefficient of thermal expansion.
- FIG. 2a illustrates a section of an embodiment according to FIG. 1 in which only the already known from the prior art thermal separation between the support unit 3 and the functional unit 4 is shown. Visible here is the support element, in particular the support beam of the support unit 3 and a part of the functional unit 4, in particular the application medium supply 6 and the application nozzle 12, which form the application device 5.
- the support beam of the support unit 3 is preferably formed as a hollow cylindrical element, on the outer circumference 27 over a portion of its extension in the circumferential direction, the means 11 for thermal decoupling between support unit 3 and functional unit 4 are hinged or connected to the support unit 3.
- the individual rib-shaped elements or webs 26 extend with their end portion facing the support unit 3 over a portion of the outer periphery 27 in the circumferential direction of the supporting beam of the support unit 3, wherein the articulation in a closed hinge region in the circumferential direction or as in the FIG. 2a shown at two circumferentially spaced hinge portions 29.1 and 29.2 takes place.
- the end region facing the application device 5 is likewise articulated or connected to the application device 5 in two articulation regions 28.1 and 28.2.
- the individual articulation areas 29.1 and 29.2 and 28.1 and 28.2 are arranged spaced apart from each other in the vertical and / or horizontal direction. This results in a higher stability.
- the arrangement of the articulation areas 25.1 and 25.2 takes place in such a way that, based on this nozzle design and the application medium supply 6, it enables optimum optimal support of the application device 5.
- FIG. 2b illustrates the FIG. 2b based on a section according to FIG. 2a an illustration of the means 10 for thermal decoupling between the applicator 5 of the functional unit 4 and the means 7 for metering application medium, in particular the actual doctor blade holder 16.
- this preferably comprises rib-shaped elements 23 which are formed as webs or connecting webs, and the doctor blade holder 16 and thus connect the device 7 for metering application medium with the actual application device 5.
- the connection takes place here in the two articulation areas 25.1 and 25.2, which are arranged offset from one another in the vertical direction.
- the individual rib-shaped elements 23 are guided in the circumferential direction around the application medium supply 6, in particular the central distribution channel 13.
- the rib-shaped elements 23 and 26 are arranged offset to one another over the longitudinal extension of the functional unit 4.
- the individual rib-shaped elements 26, 23 can be arranged in the width direction of the device 1 either parallel to one another or at an angle to one another. Preferably, parallel arrangements are chosen to achieve optimum strength evenly across the width of the device 1.
- the rib-shaped elements 23 and 26 can also be profiled to ensure the support function.
- FIGS. 1 and 2 illustrated embodiments in the device 1 for direct or indirect application of coating medium 2 on a movable material web M are characterized here by a functional separation of applicator 5 and means 7 for metering application medium by the means 7 for metering the applicator 5 is functionally downstream and is arranged separately from this, but elements of the actual applicator 5 can be used to attach the device 7 for metering application medium, in particular for example for mounting.
- the said embodiment can also be used for functional units 4, in which the device 7 for metering application medium 7 with the applicator 5 forms a structural unit, in particular in the formation of applicators 5 in the form of so-called free-jet nozzles, in which the order directly on the support surface 9 or supported by this material web M occurs.
- Such an embodiment is exemplary in the FIG. 3 played.
- the metering device in the form of the device 7 is formed by an element 30 of the application nozzle 12, in particular an outlet gap forming area, the change in position relative to the other elements of the application nozzle 12 has an altered outlet cross-section of this and in connection therewith with other exit parameters for the application medium 2 allows a dosage.
- An additional leveling device 14 is not provided here.
- the support unit 3 is formed of a carbon fiber reinforced plastic.
- FIG. 4 illustrates an alternative connection of the functional unit 4 to the support unit 3.
- the application device 5 and the device 7 for metering application medium in the form of a homogenizing device 14, as in FIG. 1 described run and connected to each other via rib-shaped elements 23, which form the means 10 for thermal decoupling between application device 5 and means 7 for metering application medium.
- the connection of the application device 5 takes place via the coupling with the device 7, in particular the metering device on the support unit 3.
- a direct connection between the application device 5 and support unit 3 is not provided.
- connection between the applicator 5 and the support unit 3 is thus indirectly via the connection of the device 7 for metering application medium with the support unit 3.
- the function of thermal decoupling can be taken directly from each of the individual rib-shaped elements 23 and 26.
- the connections between the individual rib-shaped elements 23, 26 and the connecting elements can be non-positive or positive or cohesive. Furthermore, this can be carried out detachably or permanently.
- an insulating layer may be provided or formed by the rib-shaped elements themselves.
- FIGS. 5a and 5b illustrate with reference to two views of a further embodiment in which the applicator 5 are connected by means of individual rib-shaped elements 23 and the device 7 via further rib-shaped elements 32 to the support unit 3, wherein there is no direct connection between applicator 5 and device 7.
- the individual connections are shown in different parallel sectional planes.
- the arrangement of the rib-shaped elements 26 and 32 in the longitudinal direction of the support unit 3, which the direction of extension of the longitudinal axis of the support unit and thus the Y-direction in Mounting position corresponds to alternate.
- a symmetrical arrangement is preferably selected with respect to the center of the longitudinal axis of the support unit 3.
- the distances between the individual rib-shaped elements 23 and 32 can vary or, preferably, be kept constant in order to realize equal force ratios over the longitudinal extent along the longitudinal axis of the carrying unit 3.
- the individual rib-shaped elements 26 and 32 are part of the means 11 for thermal decoupling of support unit 3 and functional unit 4 and thus also the means 10 for thermal decoupling of application device 5 and device 7 for dosing.
- the device according to the invention may also assume other than the above-described embodiments.
- the device may have features that represent a combination of the respective individual features of the claims.
- deviating shapes for the individual functional elements can be selected with regard to the geometric configuration.
- the thermal insulation layer may have another, preferably the respective geometry of the functional unit 4, the support unit 3 and the connecting device adapted design or it may also be a different type of thermal decoupling be selected, for example by specially used materials.
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Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum indirekten oder direkten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine bewegbare Materialbahn, umfassend eine Funktionseinheit mit einer Auftragseinrichtung und einer Einrichtung zur Dosierung von Auftragsmedium und eine die Funktionseinheit wenigstens mittelbare tragende Trageinheit.The invention relates to a device for the indirect or direct application of a liquid or pasty application medium to a movable material web, comprising a functional unit with an applicator and a device for metering application medium and a functional unit at least indirectly supporting carrying unit.
Vorrichtungen zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums sind beispielhaft in den Druckschriften
Aus der Druckschrift
Aus der Druckschrift
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum direkten oder indirekten Auftrag von Auftragsmedium der eingangs genannten Art derart weiterzuentwickeln, dass Durchbiegungen innerhalb der Funktionseinheit infolge unterschiedlicher Längenänderungen und Änderungen über die Längserstreckung der Funktionseinheit betrachtet auf möglichst einfache Art und Weise vermieden werden und an sich ändernde Randbedingungen bei einem Auftragsprozess anpassbar sind, um qualitativ hochwertige Auftragsergebnisse zu erzielen.The invention is therefore based on the object, a device for direct or indirect application of application medium of the type mentioned in such a way that deflections within the functional unit as a result of different changes in length and changes over the longitudinal extension of the functional unit considered as simple as possible and avoided changing constraints on a job process are customizable to achieve high quality job results.
Die erfindungsgemäße Lösung ist durch die Merkmale des Anspruchs 1 charakterisiert. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.The solution according to the invention is characterized by the features of
Eine erfindungsgemäße Vorrichtung zum indirekten oder direkten Auftragen von Auftragsmedium auf eine bewegbare Materialbahn, umfassend eine Funktionseinheit mit einer Auftragseinrichtung und einer Einrichtung zur Dosierung von Auftragsmedium und eine die Funktionseinheit wenigstens mittelbare tragende Trageinheit, ist dadurch gekennzeichnet, dass Mittel zur thermischen Entkopplung zwischen der Auftragseinrichtung und der Einrichtung zur Dosierung von Auftragsmedium vorgesehen sind.A device according to the invention for the indirect or direct application of application medium to a movable material web, comprising a functional unit with an application device and a device for metering application medium and a carrying unit which is at least indirectly the functional unit, is characterized in that means for thermal decoupling between the application device and the device for metering application medium are provided.
Die erfindungsgemäße Lösung ermöglicht einerseits eine gewünschte thermische Abschirmung zwischen der Auftragseinrichtung, insbesondere der Auftragsmedienzufuhr und der Einrichtung zur Dosierung von Auftragsmedium, wodurch die durch diese in diesen bedingten Längenänderungen auf einfache Art und Weise kompensiert werden können und ferner eine optimale Funktionsweise der gesamten Funktionseinheit gewährleistet werden kann.On the one hand, the solution according to the invention enables a desired thermal shielding between the application device, in particular the application media supply and the device for metering application medium, whereby the length changes caused by these can be compensated in a simple manner and, furthermore, optimum functioning of the entire functional unit can be guaranteed can.
Unter einer Funktionseinheit im Sinne der Erfindung wird dabei eine beliebige auftragskonzeptspezifische Einrichtung verstanden, welche zur Be- und Verarbeitung oder Manipulation von Auftragsmedium und/oder des mit dem Auftragsmedium hergestellten Auftrages mit diesen in direkten Kontakt gelangt. Diese umfasst zumindest eine Auftragseinrichtung und eine Einrichtung zur Dosierung des Auftragsmediums, welche als separate Baueinheit ausgeführt oder aber Bestandteil der Auftragseinrichtung sein kann. Beispielsweise können diese Vor- und Enddosiereinrichtungen, wie etwa ein Freistrahlauftragswerk, einschließlich Farbverteilrohr, Zuleitkanälen und Auftragsdüse umfassen. Auftragswerke mit einer Auftragskammer, sogenannte "Short Dwell Time Applicators" (SDTA), "Long Dwell Time Applicators (LDTA)", Egalisiereinrichtungen oder Fertigdosiereinrichtungen mit einem oder mehreren Rakelelementen. Die Funktionseinheit kann ferner diverse Baugruppen oder Einzelteile umfassen, um bei Bedarf einen Austausch oder eine Wartung dieser Komponenten, insbesondere der einem hohen Verschleiß ausgesetzten Teile zu gewährleisten.In the context of the invention, a functional unit is understood to mean any application concept-specific device which comes into direct contact with the latter for the processing and manipulation or manipulation of the application medium and / or the order produced with the application medium. This comprises at least one application device and a device for metering the application medium, which can be designed as a separate structural unit or else can be part of the application device. For example, these may include pre-and end metering devices, such as a free-jet applicator, including paint distribution tube, supply channels, and applicator nozzle. Application work with a coating chamber, so-called "Short Dwell Time Applicators" (SDTA), "Long Dwell Time Applicators (LDTA)", leveling or Fertigdosiereinrichtungen with one or more Squeegee elements. The functional unit may further comprise various assemblies or individual parts to ensure, if necessary, replacement or maintenance of these components, in particular the parts exposed to high wear.
Unter Auftragseinrichtung wird eine Einrichtung verstanden, welche eine Auftragsmedienzufuhr zur zu beschichtenden Oberfläche ermöglicht. Diese umfasst im Allgemeinen eine Auftragsmedienzufuhr und eine mit dieser gekoppelte Auftragskammer oder Düse.Application device is understood to mean a device which makes possible an application of media to the surface to be coated. This generally includes an application media supply and an applicator chamber or nozzle coupled thereto.
Die Erfinder haben erkannt, dass eine Trennung der das Auftragsmedium kontaktierenden Teile der Auftragsmediumzufuhr und der Einrichtung zur Dosierung von Auftragsmedium sowie das Vorsehen der thermischen Abschirmung zwischen diesen Komponenten, die über eine von den rippenförmigen Elementen gewissermaßen gebildeten Längenausdehnungskompensationseinrichtungen miteinander verbunden werden, die bei konventionellen Vorrichtungen auftretenden nachteiligen Durchbiegungserscheinungen auf einfache Art und Weise wirkungsvoll minimiert oder sogar vollständig vermieden werden können.The inventors have recognized that a separation of the application medium contacting parts of the application medium supply and the device for metering application medium and the provision of the thermal shield between these components, which are connected via a rule formed by the rib-shaped elements Längenauspehnungskompensationseinrichtungen that in conventional devices occurring adverse deflection phenomena can be effectively minimized in a simple manner or even completely avoided.
Die thermische Entkopplung verhindert dabei eine Wärmeübertragung von der Auftragseinrichtung, insbesondere der Auftragsmedienzufuhr zur Einrichtung zur Dosierung von Auftragsmedium und damit eine durch unterschiedlich temperierte Bereiche bedingte Verformung dieser Komponenten selbst, während die dafür vorgesehenen Mittel diese vorzugsweise fest miteinander verbinden, gleichzeitig jedoch eine ungehinderte Längenausdehnung dieser beiden relativ zueinander zulässt, so dass eine aufgrund des erwärmten Auftragsmediums verursachte Verformung sich nicht auf die Einrichtung zur Dosierung überträgt. Dadurch kann die Vorrichtung zum einen hinsichtlich ihrer Funktionsweise sehr maßhaltig ausgebildet werden und arbeitet auch ohne weitere Zusatzmaßnahmen sehr präzise. Der Einsatz von relativ aufwendigen und teuren Durchbiegungsausgleichssystemen ist in der Regel überflüssig. Diese können zusätzlich verwendet werden, jedoch hinsichtlich des erforderlichen Durchbiegungsausgleichsbedarfs erheblich verkleinert und vereinfacht ausgeführt werden.The thermal decoupling thereby prevents heat transfer from the application device, in particular the application media supply to the device for metering application medium and thus a conditional by differently tempered areas deformation of these components themselves, while the designated means these preferably firmly connect with each other, but at the same time an unhindered linear expansion of these allows both relative to each other, so that a deformation caused due to the heated coating medium does not transfer to the means for metering. As a result, the device on the one hand can be made very dimensionally stable in terms of its operation and works very precisely even without further additional measures. The use of relatively complex and expensive deflection compensation systems is generally superfluous. these can be additionally used, but considerably reduced in size and simplified in terms of the required deflection compensation requirement.
Ein weiterer Vorteil der erfindungsgemäßen Lösung besteht darin, dass zwischen den einzelnen Elementen der Funktionseinheit unterschiedliche Material- und Werkstoffe wählbar sind. Dabei können beispielsweise für die das Auftragsmedium kontaktierenden Teile auch Sonderwerkstoffe eingesetzt werden.Another advantage of the solution according to the invention is that different materials and materials can be selected between the individual elements of the functional unit. In this case, for example, special materials can be used for the parts contacting the application medium.
Ferner ist eine separate Fertigung zwischen der Dosiereinrichtung und der Auftragseinrichtung denkbar, wobei die einzelnen Komponenten nunmehr in standardisierter Bauweise bereitgestellt werden können.Furthermore, a separate production between the metering device and the application device is conceivable, wherein the individual components can now be provided in a standardized construction.
Die thermische Entkopplung kann dabei direkt zwischen der Auftragseinrichtung und der Einrichtung zur Dosierung erfolgen oder indirekt. Im ersten Fall sind die Mittel zur thermischen Entkopplung zwischen Auftragseinrichtung und Einrichtung zur Dosierung angeordnet. Die Anbindung der Funktionseinheit kann dann durch Verbindung der Auftragseinrichtung oder der Einrichtung zur Dosierung von Auftragsmedium mit der Trageinheit erfolgen. Die erst genannte Möglichkeit bietet den Vorteil einer kompakteren Gestaltung. Im zweiten Fall erfolgt die Anbindung der Einrichtung zur Dosierung von Auftragsmedium sowie der Aufragseinrichtung jeweils direkt an die Trageinheit, frei von einer Verbindung untereinander und die thermische Entkopplung über die Verbindung zwischen Trageinheit und Funktionseinheit, insbesondere der Auftragseinrichtung und der Einrichtung zur Dosierung von Auftragsmedium. Die Mittel zur thermischen Entkoppelung von Auftragseinrichtung und Einrichtung zur Dosierung von Auftragsmedium werden dabei von den Mitteln zur thermischen Entkopplung von Trageinheit und Funktionseinheit gebildet.The thermal decoupling can be done directly between the applicator and the device for metering or indirectly. In the first case, the means for thermal decoupling between application device and means for metering are arranged. The connection of the functional unit can then be done by connecting the applicator or the device for metering application medium with the support unit. The first option offers the advantage of a more compact design. In the second case, the connection of the device for metering application medium and the Aufragseinrichtung takes place each directly to the support unit, free of a connection with each other and the thermal decoupling via the connection between the support unit and functional unit, in particular the applicator and the device for metering application medium. The means for thermal decoupling of application device and device for metering application medium are formed by the means for thermal decoupling of support unit and functional unit.
Ferner besteht in beiden Fällen die Möglichkeit, die Mittel allein durch die vorgesehenen zusätzlichen Zwischenelemente, vorzugsweise in Form von rippenförmigen Elementen oder Stegen und die zwischen diesen einschließbare Luftschicht auszubilden. In diesem Fall werden die Mittel direkt von den Verbindungselementen gebildet, die ferner derart ausgeführt und ausgestaltet sind, eine Verformung, insbesondere Längenausdehnung der Anschlusselemente zu kompensieren. Des Weiteren besteht die Möglichkeit speziell Isolationsmaterial in die Verbindungen zwischen Auftragseinrichtung und Einrichtung zur Dosierung zu integrieren. Denkbar sind insbesondere Isolationsschichten an den einzelnen Komponenten der Auftragseinrichtung und/oder der Einrichtung zur Dosierung.Furthermore, in both cases it is possible to use the means solely by the provided additional intermediate elements, preferably in the form of rib-shaped elements or webs and the enclosable between them Form air layer. In this case, the means are formed directly by the connecting elements, which are further designed and configured to compensate for a deformation, in particular length extension of the connecting elements. Furthermore, it is possible to integrate insulation material specifically in the connections between applicator device and device for metering. In particular, insulation layers on the individual components of the application device and / or the device for metering are conceivable.
Bei der thermischen Isolationsschicht kann es sich um Luft, eine auf die jeweils miteinander über die rippenförmigen Elemente koppelbaren Elemente - Auftragseinrichtung und Einrichtung zur Dosierung - aufgebrachte Beschichtung oder separate in die Verbindung integrierte Elemente mit Isolationseigenschaften handeln. Die Gestaltung der Isolationsschicht ist vorzugsweise der jeweiligen Geometrie der einander zugeordneten Verbindungsflächen der Funktionseinheit und des Tragelementes angepasst, wobei die Isolationsschicht auch abdichtende Funktionen übernehmen kann.The thermal insulation layer may be air, a coating applied to the respective elements that can be coupled to one another via the rib-shaped elements-application device and device for metering-or separate elements with insulating properties that are integrated into the connection. The design of the insulation layer is preferably adapted to the respective geometry of the mutually associated connection surfaces of the functional unit and of the support element, wherein the insulation layer can also assume sealing functions.
Bei der Verwendung eines gasförmigen Mediums, insbesondere Luft als thermische Isolationsschicht ist es von Vorteil, wenn diese beispielsweise mittels eines Gebläses bewegt wird, wodurch die Abschirmwirkung verbessert wird und ferner ein zusätzlicher Kühleffekt erzielt werden kann.When using a gaseous medium, in particular air as a thermal insulation layer, it is advantageous if it is moved, for example by means of a blower, whereby the shielding effect is improved and also an additional cooling effect can be achieved.
Die Verbindung zwischen der Auftragseinrichtung und der Einrichtung zur Dosierung erfolgt vorzugsweise lösbar, so dass diese zu Wartungszwecken oder zum Austausch gegen andere Elemente, insbesondere bei Verschleiß, einfach voneinander trennbar sind. Ferner besteht dadurch auch die Möglichkeit, unterschiedliche Komponenten und unterschiedliche Ausführungen von Auftragseinrichtungen und Dosiereinheiten miteinander zu koppeln. Die Verbindungen erfolgen kraftschlüssig oder formschlüssig.The connection between the application device and the device for metering preferably takes place detachably, so that they can be easily separated from one another for maintenance purposes or for exchange with other elements, in particular during wear. Furthermore, this also makes it possible to couple different components and different designs of applicators and metering units with each other. The connections are non-positive or positive.
Gemäß einer vorteilhaften Ausführungsform können die einzelnen Komponenten in der Verbindung auch relativ zueinander bewegbar ausgebildet und angeordnet werden, was einen leichteren Ausgleich von Fertigungstoleranzen sowie eine Justierung bei der Positionierung ihrer Lage zueinander ermöglicht.According to an advantageous embodiment, the individual components in the connection can also be designed and arranged to be movable relative to one another be, which allows for easier compensation of manufacturing tolerances and an adjustment in positioning their position to each other.
In einer besonders vorteilhaften Ausführung wird die erfindungsgemäße Lösung für eine Funktionseinheit aus einer Auftragseinrichtung mit einer Auftragsmedienzufuhr und zumindest einer Auftragsdüse und einer Egalisiereinrichtung, welche separat zur eigentlichen Auftragsdüse angeordnet ist, eingesetzt. Bei der Egalisiereinrichtung handelt es sich vorzugsweise um ein Rakelelement, das sich in Breitenrichtung der zu beschichtenden Oberfläche erstreckt. Die thermische Entkopplung erfolgt dabei vorzugsweise zwischen der dem Rakelelement zugeordneten Rakelhalterung und der Auftragsmediumzufuhr der Auftragseinrichtung, wobei die Auftragseinrichtung gleichzeitig mit zur Klemmung des Rakelelementes verwendbar ist.In a particularly advantageous embodiment, the inventive solution for a functional unit from an application device with a job media supply and at least one application nozzle and a leveling device, which is arranged separately from the actual application nozzle used. The leveling device is preferably a doctor element which extends in the width direction of the surface to be coated. The thermal decoupling is preferably carried out between the doctor blade associated Rakelhalterung and the order medium supply the applicator, wherein the applicator is used simultaneously with for clamping the doctor element.
In einer vorteilhaften Weiterentwicklung ist des Weiteren eine thermische Entkopplung zwischen der Funktionseinheit, insbesondere der Auftragseinrichtung und der Trageinheit, vorgesehen. Es gelten die gleichen Vorteile.In an advantageous further development, furthermore, a thermal decoupling between the functional unit, in particular the application device and the support unit, is provided. The same advantages apply.
Die erfindungsgemäße Lösung wird nachfolgend anhand von Figuren erläutert. Darin ist im Einzelnen Folgendes dargestellt:
Figur 1- verdeutlicht in schematisiert vereinfachter Darstellung anhand eines Axialschnittes den Grundaufbau und die Grundfunktion einer vorteilhaften erfindungsgemäßen Ausführung mit einer Funktionseinheit, umfassend eine Auftragseinrichtung und eine dieser separat zugeordnete Einrichtung zur Dosierung von Auftragsmed ium;
- Figur 2a
- verdeutlicht anhand eines Ausschnittes gemäß
die thermische Entkopplung zwischen der Trageinheit und der Funktionseinheit, insbesondere der Auftragseinrichtung;Figur 1 - Figur 2b
- verdeutlicht anhand eines Details gemäß
die erfindungsgemäße thermische Entkopplung zwischen der Einrichtung zur Dosierung von Auftragsmedium und der Auftragsmediumzufuhr der Auftragseinrichtung;Figur 1 Figur 3- verdeutlicht eine Ausführung einer erfindungsgemäßen Vorrichtung, bei welcher die Einrichtung zur Dosierung von Auftragsmedium integraler Bestandteil der Auftragseinrichtung ist;
Figur 4- verdeutlicht anhand einer Ausführung gemäß
eine alternative Verbindung zwischen Trageinheit und Funktionseinheit;Figur 1 - Figuren 5a und 5b
- verdeutlichen eine alternative Ausführung zu
mit jeweils direkter Anbindung der Auftragseinrichtung und der Einrichtung zur Dosierung an die Trageinheit über separate rippenförmige Elemente.Figur 1
- FIG. 1
- illustrates in a schematic simplified representation on the basis of an axial section of the basic structure and the basic function of an advantageous embodiment of the invention with a functional unit, comprising an applicator and one of these separately assigned device for metering order med ium;
- FIG. 2a
- clarified by a section according to
FIG. 1 the thermal decoupling between the support unit and the functional unit, in particular the application device; - FIG. 2b
- clarified by a detail according to
FIG. 1 the inventive thermal decoupling between the means for metering application medium and the application medium supply of the applicator; - FIG. 3
- illustrates an embodiment of a device according to the invention, in which the means for metering application medium is an integral part of the application device;
- FIG. 4
- illustrated by an embodiment according to
FIG. 1 an alternative connection between the carrying unit and the functional unit; - FIGS. 5a and 5b
- illustrate an alternative embodiment too
FIG. 1 each with direct connection of the applicator and the device for metering to the support unit via separate rib-shaped elements.
Zur Verdeutlichung der einzelnen Richtungen sind in den einzelnen Figuren Koordinatensysteme dargestellt, wobei die X-Richtung der Längsrichtung und in Einbaulage in der Regel der Maschinenrichtung entspricht. Die Y-Richtung entspricht in Einbaulage der dargestellten Elemente der Breitenrichtung und damit der Richtung quer zur Längsrichtung, während die Z-Richtung die Höhenrichtung beschreibt.To illustrate the individual directions coordinate systems are shown in the individual figures, the X direction corresponds to the longitudinal direction and in the installed position usually the machine direction. The Y-direction corresponds in installed position of the illustrated elements of the width direction and thus the direction transverse to the longitudinal direction, while the Z direction describes the height direction.
Die
Gemäß einer besonders vorteilhaften Ausführung werden die miteinander über die Mittel 10 gekoppelten Elemente, insbesondere die Einrichtung 7 zur Dosierung von Auftragsmedium 2 und die Auftragsmediumzufuhr 6 beinhaltenden Elemente, insbesondere die Auftragseinrichtung 5, aus Werkstoffen gefertigt, die einen gleichen oder im Wesentlichen gleichen Wärmeausdehnungskoeffizienten aufweisen.According to a particularly advantageous embodiment, the elements coupled to one another via the
Erkennbar in
Die
Demgegenüber verdeutlicht die
Die rippenförmigen Elemente 23 und 26 sind über die Längserstreckung der Funktionseinheit 4 betrachtet zueinander versetzt angeordnet. Die einzelnen rippenförmigen Elemente 26, 23 können dabei in Breitenrichtung der Vorrichtung 1 betrachtet entweder parallel zueinander oder aber in einem Winkel zueinander angeordnet sein. Vorzugsweise werden zur Erzielung einer optimalen Festigkeit gleichmäßig über die Breite der Vorrichtung 1 betrachtet parallele Anordnungen gewählt. Die rippenförmigen Elemente 23 und 26 können zur Gewährleistung der Tragfunktion auch profiliert ausgebildet sein.The rib-shaped
Die in den
Bei allen Ausführungen ist vorzugsweise die Trageinheit 3 aus einem kohlenstofffaserverstärktem Kunststoff gebildet.In all embodiments, preferably the
Nicht dargestellt, jedoch ebenfalls möglich, ist das Vorsehen spezieller thermischer Isolationsschichten in den Verbindungen zwischen Auftragseinrichtung 5 und Einrichtung 7 zur Dosierung sowie Funktionseinheit 4 und Trageinheit 3.Not shown, but also possible, is the provision of special thermal insulation layers in the connections between
Die
Die
Die einzelnen rippenförmigen Elemente 26 und 32 sind Bestandteil der Mittel 11 zur thermischen Entkopplung von Trageinheit 3 und Funktionseinheit 4 und damit auch der Mittel 10 zur thermischen Entkopplung von Auftragseinrichtung 5 und Einrichtung 7 zur Dosierung.The individual rib-shaped
Die erfindungsgemäße Lösung ist nicht auf die in den Figuren dargestellten Ausführungsbeispiele beschränkt. Diese dienen lediglich der allgemeinen Erläuterung des Grundgedankens der Erfindung. Im Rahmen des Schutzumfangs kann die erfindungsgemäße Vorrichtung vielmehr auch andere als die oben beschriebenen Ausgestaltungsformen annehmen. Die Vorrichtung kann dabei Merkmale aufweisen, die eine Kombination aus den jeweiligen Einzelmerkmalen der Ansprüche darstellen. Des Weiteren können hinsichtlich der geometrischen Ausgestaltung abweichende Formen für die einzelnen Funktionselemente gewählt werden. Ebenso kann die thermische Isolationsschicht eine andere, vorzugsweise der jeweiligen Geometrie der Funktionseinheit 4, der Trageinheit 3 sowie deren Verbindungseinrichtung angepasste Gestaltung aufweisen oder es kann auch eine andere Art der thermischen Entkopplung gewählt werden, beispielsweise durch speziell verwendete Materialien.The solution according to the invention is not limited to the exemplary embodiments illustrated in the figures. These are merely for the general explanation of the basic idea of the invention. Within the scope of protection, the device according to the invention may also assume other than the above-described embodiments. The device may have features that represent a combination of the respective individual features of the claims. Furthermore, deviating shapes for the individual functional elements can be selected with regard to the geometric configuration. Likewise, the thermal insulation layer may have another, preferably the respective geometry of the
- 11
- Vorrichtung zum direkten oder indirekten Auftrag von AuftragsmediumDevice for direct or indirect application of application medium
- 22
- Auftragsmediumapplication medium
- 33
- Trageinheitsupport unit
- 44
- Funktionseinheitfunctional unit
- 55
- Auftragseinrichtungapplicator
- 66
- AuftragsmediumzufuhrApplication medium supply
- 77
- Einrichtung zur Dosierung von AuftragsmediumDevice for metering application medium
- 88th
- Gegenwalzebacking roll
- 99
- Trägerflächesupport surface
- 1010
- Mittel zur thermischen EntkopplungMeans for thermal decoupling
- 1111
- Mittel zur thermischen Entkopplung zwischen Trageinheit und FunktionseinheitMeans for thermal decoupling between support unit and functional unit
- 1212
- Auftragsdüseapplicator
- 1313
- Verteilkanaldistribution channel
- 1414
- EgalisierungseinrichtungEgalisierungseinrichtung
- 1515
- Rakelelementdoctor element
- 1616
- Rakelhaltersqueegee holder
- 1717
- Mittel zur BefestigungMeans for attachment
- 1818
- Dosierspaltmetering
- 1919
- Anpresseinrichtungpressing device
- 2020
- Anpresselementpresser
- 2121
- Andrückleistepressure strip
- 2222
- elastisches Elementelastic element
- 2323
- rippenförmiges Elementrib-shaped element
- 2424
- Endbereichend
- 25.1, 25.225.1, 25.2
- Anlenkbereicharticulation
- 2626
- rippenförmiges Elementrib-shaped element
- 2727
- Außenumfangouter periphery
- 28.1, 28.228.1, 28.2
- Anlenkbereicharticulation
- 29.1, 29.229.1, 29.2
- Anlenkbereicharticulation
- 3030
- Elementelement
- 3131
- AuftragsmediumauffangeinrichtungApplication medium collecting device
- 3232
- rippenförmiges Elementrib-shaped element
- MM
- Materialbahnweb
- X, Y, ZX, Y, Z
- Koordinatensystemcoordinate system
Claims (25)
dadurch gekennzeichnet,
dass Mittel (10) zur thermischen Entkopplung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) vorgesehen sind.Device (1) for the indirect or direct application of a liquid or pasty application medium (2) to a movable material web (M), comprising a functional unit (4) with an application device (5) and a device (7) for metering application medium (2) and a support unit (3) at least indirectly supporting the functional unit (4),
characterized,
in that means (10) for thermal decoupling of application device (5) and the device (7) for metering application medium (2) are provided.
dadurch gekennzeichnet,
dass die Mittel (10) zur thermischen Entkopplung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) direkt zwischen Auftragseinrichtung (5) und Einrichtung (7) zur Dosierung von Auftragsmedium (2) angeordnet sind.Device (1) according to claim 1,
characterized,
in that the means (10) for thermal decoupling of application device (5) and the device (7) for metering application medium (2) are arranged directly between application device (5) and device (7) for metering application medium (2).
dadurch gekennzeichnet,
dass die Mittel (10) zur thermischen Entkopplung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) eine Mehrzahl von einzelnen quer zur Längsrichtung der Vorrichtung (1) beabstandeten rippenförmigen Elementen (23) umfassen, die die Einrichtung (7) zur Dosierung von Auftragsmedium (2) mit der Auftragseinrichtung (5) verbinden und die derart ausgebildet und angeordnet sind, geeignet zu sein, eine thermische Abschirmung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) gegeneinander und eine Kompensation thermischer relativer Längenänderungen zwischen diesen zu ermöglichen.Device (1) according to claim 1 or 2,
characterized,
in that the means (10) for decoupling the application device (5) and the device (7) for metering application medium (2) comprise a plurality of individual rib-shaped elements (23) spaced transversely to the longitudinal direction of the device (1) (7) for metering application medium (2) with the applicator (5) connect and which are designed and arranged to be suitable for allowing thermal shielding of the application device (5) and the device (7) for metering the application medium (2) against each other and for compensating thermal relative changes in length between them.
dadurch gekennzeichnet,
dass die Mittel (10) zur thermischen Entkopplung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) eine zwischen der Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) angeordnete oder aufbringbare thermische Isolationsschicht umfassen.Device (1) according to one of claims 1 to 3,
characterized,
in that the means (10) for thermal decoupling of application device (5) and the device (7) for metering application medium (2) are arranged or can be applied between the application device (5) and the device (7) for metering application medium (2) include thermal insulation layer.
dadurch gekennzeichnet,
dass die thermische Isolationsschicht von den rippenförmigen Elementen (23) überbrückt wird.Device (1) according to claim 4,
characterized,
that the thermal insulation layer is bridged by the rib-shaped elements (23).
dadurch gekennzeichnet,
dass die Isolationsschicht von Luft gebildet wird.Device (1) according to one of claims 4 or 5,
characterized,
that the insulation layer is formed by air.
dadurch gekennzeichnet,
dass die Isolationsschicht von Isolationsmaterial gebildet wird, welches in der Verbindung zwischen den rippenförmigen Elementen (23) und der Auftragseinrichtung (5) und/oder der Einrichtung (7) zur Dosierung von Auftragsmedium (2) angeordnet ist.Device (1) according to one of claims 4 or 5,
characterized,
in that the insulating layer is formed by insulation material which is arranged in the connection between the rib-shaped elements (23) and the application device (5) and / or the device (2) for metering application medium.
dadurch gekennzeichnet,
dass die Auftragseinrichtung (5) eine Auftragsmediumzufuhr (6) und zumindest eine mit dieser koppelbare Auftragsdüse (12) umfasst, wobei die Auftragsmediumzufuhr (6) einen quer zur Längsrichtung verlaufenden zentralen Verteilerkanal (13) aufweist, und die Ausbildung der rippenförmigen Elemente (23) derart erfolgt, dass diese geeignet sind, an der Auftragseinrichtung (5) an zumindest zwei Anlenkbereichen (25.1, 25.2), die in vertikaler Richtung zueinander versetzt angeordnet sind unter zumindest teilweiser Umschließung des zentralen Verteilerkanals (13) angelenkt zu werden.Device (1) according to one of claims 1 to 7,
characterized,
in that the application device (5) comprises a application medium supply (6) and at least one application nozzle (12) which can be coupled thereto, the application medium supply (6) having a central distribution channel (13) extending transversely to the longitudinal direction, and the formation of the rib-shaped elements (23). in such a way that they are suitable to be articulated to the applicator (5) on at least two articulation areas (25.1, 25.2), which are arranged offset from each other in the vertical direction, at least partially enclosing the central distributor passage (13).
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) von einer Egalisiereinrichtung (14) gebildet wird, umfassend ein Rakelelement (15), welches in einem Rakelhalter (16) gelagert ist, wobei zwischen dem Rakelhalter (16) und der Auftragsdüse (12) die Mittel (10) zur thermischen Entkopplung vorgesehen sind.Device (1) according to one of claims 1 to 8,
characterized,
in that the device (7) for metering application medium (2) is formed by a leveling device (14), comprising a doctor element (15) which is mounted in a doctor blade holder (16), between the doctor blade holder (16) and the application nozzle (16). 12) the means (10) are provided for thermal decoupling.
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) und die Auftragseinrichtung (5) lösbar miteinander verbunden sind.Device (1) according to one of claims 1 to 9,
characterized,
that the device (7) for metering coating medium (2) and the application device (5) are detachably connected together.
dadurch gekennzeichnet,
dass zwischen der Funktionseinheit (4) und der Trageinheit (3) Mittel (11) zur thermischen Entkopplung von Trageinheit (3) und Funktionseinheit (4) vorgesehen sind.Device (1) according to one of claims 1 to 10,
characterized,
in that means (11) for thermal decoupling of the carrying unit (3) and functional unit (4) are provided between the functional unit (4) and the carrying unit (3).
dadurch gekennzeichnet,
dass die Mittel (11) eine Mehrzahl von einzelnen voneinander beabstandeten rippenförmigen Elementen (26, 32) umfassen, die derart angeordnet und ausgebildet sind, geeignet zu sein, eine thermische Abschirmung der Funktionseinheit (4) und der Trageinheit (3) gegeneinander und eine Kompensation thermischer relativer Längenänderungen zwischen der Funktionseinheit (4) und der Trageinheit (3) vorzusehen.Device (1) according to claim 11,
characterized,
in that the means (11) comprise a plurality of individual spaced-apart rib-shaped elements (26, 32) arranged and adapted to be suitable, a thermal shielding of the functional unit (4) and the support unit (3) against each other and compensation thermal relative length changes between the functional unit (4) and the support unit (3) provide.
dadurch gekennzeichnet,
dass die thermische Abschirmung der Funktionseinheit (4) und der Trageinheit (3) gegeneinander durch mindestens eine zwischen der Funktionseinheit (4) und der Trageinheit (3) angeordnete thermische Isolationsschicht gebildet wird.Device (1) according to claim 11 or 12,
characterized,
that the thermal shielding of the functional unit (4) and the supporting unit (3) is formed against each other by at least one arranged between the functional unit (4) and the supporting unit (3) thermal insulation layer.
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) direkt an der Trageinheit (3) befestigt ist und die rippenförmigen Elemente (26) die Auftragseinrichtung (5) mit der Trageinheit (3) verbinden.Device (1) according to one of claims 11 to 13,
characterized,
in that the device (7) for metering application medium (2) is fastened directly to the support unit (3) and the rib-shaped elements (26) connect the applicator device (5) to the support unit (3).
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) direkt an der Trageinheit (3) befestigt ist und die rippenförmigen Elemente (32) die Einrichtung (7) zur Dosierung von Auftragsmedium (2) mit der Trageinheit (3) verbinden.Device (1) according to one of claims 11 to 13,
characterized,
in that the device (7) for metering application medium (2) is fastened directly to the support unit (3) and the rib-shaped elements (32) connect the device (7) for metering application medium (2) to the support unit (3).
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) direkt an der Trageinheit (3) befestigt ist und die Mittel (10) zur thermischen Entkopplung von Auftragseinrichtung (5) und der Einrichtung (7) zur Dosierung von Auftragsmedium (2) von den Mitteln (11) zur thermischen Entkopplung der Funktionseinheit (4) von der Trageinheit (3) gebildet werden, umfassend rippenförmige Elemente (26) zur Verbindung von Auftragseinrichtung (5) mit der Trageinheit (3) und weitere rippenförmige Elemente (32) zur Verbindung der Einrichtung (7) zur Dosierung mit der Trageinheit (3), wobei Aufragseinrichtung (5) und Einrichtung (7) zur Dosierung von Auftragsmedium (2) frei von einer direkten Verbindung sind.Device (1) according to claims 11 to 13,
characterized,
in that the device (7) for metering application medium (2) is fastened directly to the support unit (3) and the means (10) for thermal decoupling of application device (5) and the device (7) for metering Application medium (2) from the means (11) for thermal decoupling of the functional unit (4) by the support unit (3) are formed, comprising rib-shaped elements (26) for connecting applicator (5) with the support unit (3) and further rib-shaped elements (32) for connecting the device (7) for metering with the carrying unit (3), wherein the depositing device (5) and device (7) for metering the application medium (2) are free from a direct connection.
dadurch gekennzeichnet,
dass die rippenförmigen Elemente (26, 32) zur Verbindung zwischen Auftragseinrichtung (5) und/oder Einrichtung (7) zur Dosierung von Auftragsmedium (2) mit der Trageinheit (3) und/oder die rippenförmigen Elemente (23) zur Verbindung zwischen Auftragseinrichtung (5) und Einrichtung (7) zur Dosierung von Auftragsmedium (2) wechselweise angeordnet sind.Device (1) according to one of claims 11 to 16,
characterized,
in that the rib-shaped elements (26, 32) for connection between application device (5) and / or device (7) for metering application medium (2) with the support unit (3) and / or the rib-shaped elements (23) for connection between application device ( 5) and means (7) for metering application medium (2) are arranged alternately.
dadurch gekennzeichnet,
dass die rippenförmigen Elemente (26, 32) zur Verbindung zwischen Auftragseinrichtung (5) und/oder Einrichtung (7) zur Dosierung von Auftragsmedium (2) mit der Trageinheit (3) und/oder die rippenförmigen Elemente (23) zur Verbindung zwischen Auftragseinrichtung (5) und Einrichtung (7) zur Dosierung von Auftragsmedium (2) symmetrisch bezogen auf die Erstreckung der Längsachse der Trageinheit (3) angeordnet sind.Device (1) according to one of claims 11 to 17,
characterized,
in that the rib-shaped elements (26, 32) for connection between application device (5) and / or device (7) for metering application medium (2) with the support unit (3) and / or the rib-shaped elements (23) for connection between application device ( 5) and means (7) for metering application medium (2) symmetrically with respect to the extension of the longitudinal axis of the support unit (3) are arranged.
dadurch gekennzeichnet,
dass die rippenförmigen Elemente (26, 32) zur Verbindung zwischen Auftragseinrichtung (5) und/oder Einrichtung (7) zur Dosierung von Auftragsmedium (2) mit der Trageinheit (3) und/oder die rippenförmigen Elemente (23) zur Verbindung zwischen Auftragseinrichtung (5) und Einrichtung (7) zur Dosierung von Auftragsmedium (2) jeweils mit konstantem Abstand zueinander bezogen auf die Erstreckung der Längsachse der Trageinheit (3) angeordnet sind.Device (1) according to one of claims 11 to 18,
characterized,
in that the rib-shaped elements (26, 32) for connection between application device (5) and / or device (7) for metering application medium (2) with the support unit (3) and / or the rib-shaped elements (23) for connection between application device ( 5) and Device (7) for metering application medium (2) are each arranged at a constant distance from each other with respect to the extension of the longitudinal axis of the support unit (3).
dadurch gekennzeichnet,
dass die Auftragseinrichtung (5) und die Einrichtung (7) zur Dosierung von Auftragsmedium (2) in Längsrichtung in paralleler Richtung zueinander bewegbar sind.Device (1) according to one of claims 1 to 19,
characterized,
in that the application device (5) and the device (7) for metering the application medium (2) are movable in the longitudinal direction in a direction parallel to one another.
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) und die Auftragseinrichtung (5) von separaten Baueinheiten gebildet werden, die zueinander beabstandet angeordnet sind.Device (1) according to one of claims 1 to 20,
characterized,
in that the device (7) for metering the application medium (2) and the applicator device (5) are formed by separate structural units which are arranged at a distance from one another.
dadurch gekennzeichnet,
dass Bestandteile der Einrichtung (7) zur Dosierung von Auftragsmedium (2) Bestandteil der Auftragseinrichtung (5) sind.Device (1) according to one of claims 1 to 20,
characterized,
that components of the device (7) for metering application medium (2) are part of the application device (5).
dadurch gekennzeichnet,
dass die Einrichtung (7) zur Dosierung von Auftragsmedium (2) zumindest ein Element (30) umfasst, welches Bestandteil eines verstellbaren Austrittsspaltes einer Auftragsdüse (12) der Auftragseinrichtung (5) ist.Device (1) according to claim 22,
characterized,
in that the device (7) for metering application medium (2) comprises at least one element (30) which is part of an adjustable outlet gap of an application nozzle (12) of the application device (5).
dadurch gekennzeichnet,
dass die Auftragseinrichtung (5) und die Einrichtung (7) zur Dosierung von Auftragsmedium (2) aus Materialien mit dem gleichen Wärmeausdehnungskoeffizienten oder annähernd dem gleichen Wärmeausdehnungskoeffizienten gebildet sind.Device (1) according to one of claims 1 to 23,
characterized,
in that the application device (5) and the device (7) for metering the application medium (2) are made from materials having the same properties Thermal expansion coefficient or approximately the same coefficient of thermal expansion are formed.
dadurch gekennzeichnet,
dass die Auftragseinrichtung (5) von einer der folgenden Einrichtungen gebildet wird:
characterized,
that the applicator device (5) is formed by one of the following means:
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041119 DE102008041119A1 (en) | 2008-08-08 | 2008-08-08 | Device for direct or indirect application of a liquid or pasty application medium to a movable material web |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2156899A1 true EP2156899A1 (en) | 2010-02-24 |
Family
ID=41120054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09165136A Withdrawn EP2156899A1 (en) | 2008-08-08 | 2009-07-10 | Device for direct or indirect application of a fluid or paste application medium to a mobile material web |
Country Status (3)
Country | Link |
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EP (1) | EP2156899A1 (en) |
CN (1) | CN201505620U (en) |
DE (1) | DE102008041119A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE535994C2 (en) * | 2011-03-03 | 2013-03-19 | Mattssonfoeretagen I Uddevalla Ab | Method and apparatus for dosing and coating |
WO2016023791A1 (en) * | 2014-08-15 | 2016-02-18 | Voith Patent Gmbh | Coater |
DE102018009535A1 (en) | 2018-12-07 | 2020-06-10 | Andritz Küsters Gmbh | Commissioned work for the direct or indirect application of a coating medium |
Citations (9)
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US3134126A (en) * | 1961-10-17 | 1964-05-26 | Beloit Corp | Deflection compensation for doctor backs |
US4258650A (en) * | 1979-09-19 | 1981-03-31 | Mccrocklin Teddy A | Rod holder for coating doctor system |
DE3236755A1 (en) * | 1982-10-05 | 1984-04-12 | J.M. Voith Gmbh, 7920 Heidenheim | Doctoring device for continuous webs of material, in particular paper webs |
EP0781608A2 (en) | 1995-12-28 | 1997-07-02 | Valmet Corporation | Applicator device for application of a coating agent onto a moving base |
US6261368B1 (en) * | 1999-01-08 | 2001-07-17 | Beloit Technologies, Inc. | Short dwell coater with cross machine direction profiling |
DE20110022U1 (en) | 2000-06-16 | 2001-09-06 | Metso Paper, Inc., Helsinki | Bend compensated beam |
DE102004005087A1 (en) * | 2004-02-02 | 2005-08-18 | Voith Paper Patent Gmbh | Support beam in fiber-reinforced composite material, used in papermaking machine, has fiber orientations selected to minimize coefficient of thermal expansion |
WO2006010794A1 (en) * | 2004-07-28 | 2006-02-02 | Metso Paper, Inc. | Beam structure for a web forming machine |
US20080121770A1 (en) * | 2006-11-23 | 2008-05-29 | Klaus Bartelmuss | Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19649559A1 (en) | 1996-11-29 | 1998-06-04 | Voith Sulzer Papiermasch Gmbh | Device for the direct or indirect application of a liquid or pasty coating medium to a running material web |
-
2008
- 2008-08-08 DE DE200810041119 patent/DE102008041119A1/en not_active Withdrawn
-
2009
- 2009-07-10 EP EP09165136A patent/EP2156899A1/en not_active Withdrawn
- 2009-08-07 CN CN2009201630116U patent/CN201505620U/en not_active Expired - Fee Related
Patent Citations (9)
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US3134126A (en) * | 1961-10-17 | 1964-05-26 | Beloit Corp | Deflection compensation for doctor backs |
US4258650A (en) * | 1979-09-19 | 1981-03-31 | Mccrocklin Teddy A | Rod holder for coating doctor system |
DE3236755A1 (en) * | 1982-10-05 | 1984-04-12 | J.M. Voith Gmbh, 7920 Heidenheim | Doctoring device for continuous webs of material, in particular paper webs |
EP0781608A2 (en) | 1995-12-28 | 1997-07-02 | Valmet Corporation | Applicator device for application of a coating agent onto a moving base |
US6261368B1 (en) * | 1999-01-08 | 2001-07-17 | Beloit Technologies, Inc. | Short dwell coater with cross machine direction profiling |
DE20110022U1 (en) | 2000-06-16 | 2001-09-06 | Metso Paper, Inc., Helsinki | Bend compensated beam |
DE102004005087A1 (en) * | 2004-02-02 | 2005-08-18 | Voith Paper Patent Gmbh | Support beam in fiber-reinforced composite material, used in papermaking machine, has fiber orientations selected to minimize coefficient of thermal expansion |
WO2006010794A1 (en) * | 2004-07-28 | 2006-02-02 | Metso Paper, Inc. | Beam structure for a web forming machine |
US20080121770A1 (en) * | 2006-11-23 | 2008-05-29 | Klaus Bartelmuss | Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant |
Also Published As
Publication number | Publication date |
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CN201505620U (en) | 2010-06-16 |
DE102008041119A1 (en) | 2010-02-11 |
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