EP2644283B2 - Coating system - Google Patents
Coating system Download PDFInfo
- Publication number
- EP2644283B2 EP2644283B2 EP13156791.9A EP13156791A EP2644283B2 EP 2644283 B2 EP2644283 B2 EP 2644283B2 EP 13156791 A EP13156791 A EP 13156791A EP 2644283 B2 EP2644283 B2 EP 2644283B2
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- EP
- European Patent Office
- Prior art keywords
- applicator
- rolls
- roll
- fluid
- framework part
- 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.)
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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
- 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
- B05C1/0826—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 the work being a web or sheets
- B05C1/0834—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 the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
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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
- 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
- B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
- B05C1/0878—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the pressure applied between two rollers, e.g. between the coating roller and a backing roller or between the coating roller and a dosing roller
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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
- 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
- B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
- B05C1/0882—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the distance between two rollers, e.g. between the coating roller and a backing roller
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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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
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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
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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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
- 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
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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
- 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
- B05C1/0817—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 removing partially liquid or other fluent material from the roller, e.g. scrapers
Definitions
- the present invention relates to an applicator for applying a fluid to a material web according to the preamble of claim 1.
- Applicators of the type mentioned are used in particular for the application of a lubricant to metallic film webs, which are cut to length according to their manufacture or cut and formed as blanks in a subsequent deep-drawing process in a thermoforming device to form parts.
- the blanks are pressed by a deep-drawing die into a deep-drawing die or a deep-drawing mold, wherein the lubricant film usually applied to the blank on both sides reduces the frictional forces occurring between the deep-drawing die and the blank as well as the blank and the deep-drawing die during the forming process.
- an applicator for applying a fluid to a material web which has two oppositely and in the web direction driven applicator rollers, between which a material web is guided.
- the applicator has two scoop rollers, each associated with an applicator roller and transferred by rotation of its peripheral surface by a fluid bath fluid from the fluid bath to a peripheral surface of the associated and opposite to the scoop driven applicator roller.
- the DE 103 37 594 B4 shows a release agent application device with actuators for variably adjusting a metering roll against a mandrel.
- the pressure forces of the metering roller are determined by means of force measuring sensors and regulated as a function of the respectively required release agent application amount.
- the EP 2 062 729 A1 shows a applicator for solvent-containing application material, in which by means of a scoop roller, the application material is transferred to a metering roller from which the application material passes by means of a transfer roller on an applicator roller, which is provided with printing cylinders to the application material on a web by means of a form roller transfer. All rollers and the impression cylinder are stored in a common machine stand.
- a device for coating a strip material by means of a coating roll wherein the coating material is fed into a groove formed between a scraper and the coating roll and is transferred from the coating roll to a strip material.
- a roll applicator which serves to apply a coating material to a steel web, wherein the rolls are arranged in a common frame.
- the present invention is therefore based on the object to propose an applicator of the type mentioned, in which the contact force between the applicator rollers can be changed, without affecting the relative positioning of the applicator roller relative to the associated scoop roller is influenced.
- the applicator for setting a force acting between the applicator rollers and the material web contact force at least one applicator roller which is provided with an acting on the applicator roller feed device, which is provided with a measuring device for measuring the contact force, such that actuation of the feed device in Dependence on the measured contact force occurs.
- the inventively designed applicator allows the adjustment of the contact force a uniform application of lubricant. Consequently, by providing a defined contact force with a constant amount of fluid provided by the scoop rollers, a correspondingly constant lubricant application can be generated.
- the change in the contact force makes it possible to influence the contact surface formed between the application rollers and the material web and thus to influence the lubricant application accordingly.
- the delivery device is embodied such that a first frame part and a second frame part each have an application roller with the associated scoop roller and an actuator of the delivery device is provided for adjusting the contact force, which acts on a frame part, such that the relative position of the frame parts is changed so that it is possible in each case to adjust a pair of rollers formed from an applicator roller and a scoop roller as a unit with respect to a second roller pair formed from applicator roller and scoop roller.
- a particularly easy to implement and compact design of the force measuring device is possible if at least one bearing of the applicator roller axis is provided with a device for measuring the contact force to form the force measuring device.
- a particularly accurate reproducible adjustment of the transfer gap is possible if the delivery device for adjusting the transfer gap has an acting on the scoop roller actuator, which allows a radial adjustment of the axis relative to a storage of the axis receiving frame part of the application.
- the scoop rollers are provided with an oscillating device, such that the scoop rollers oscillatory movements in the direction of its axis To run.
- the effect of a first scraper device can be particularly advantageously enhanced if the scoop rollers are provided above their axis with a second scraper device which has a scraper edge running parallel to the scoop roller axis.
- stripping devices are provided with an oscillation device, such that the stripping devices perform an oscillatory movement in the direction of their longitudinal axis.
- a mutual positive influence on the oscillatory movements can be achieved if the stripping devices are connected to the associated oscillation devices in such a way that the stripping devices perform opposing oscillatory movements.
- the deflection rollers can be provided with a displacement measuring device for detecting their horizontal position.
- Fig. 1 shows an applicator 10 with two frame parts 11, 12 which are arranged on a frame base 13, wherein each frame part 11, 12 respectively for the arrangement of an applicator roller 14 and one of the applicator roller associated scoop roller 15 is used.
- the frame parts 11, 12 each have an applicator roller bearing 18 and a scoop roller bearing 19, which define the alignment and arrangement of an applicator roller axis 20 to the scoop roller axis 21 in the frame part 11 and 12 respectively.
- Fig. 1 shows the frame parts 11, 12 in a modified relative position relative to the frame base 13, the frame part 11 relative to the frame part 12 and the frame base 13 with a first feed device 22 in the vertical direction.
- the second frame part 12 with respect to the first frame part 11 and the frame base 13 by means of a second feed device 23 is horizontally displaceable.
- the feed devices 22 and 23 have in the case of the illustrated embodiment, in each case a longitudinal guide 24 and 25 on the frame base 13, which by means of a drive device not shown in each case a longitudinal displacement of the frame part 11 and 12 in the vertical or horizontal direction relative to the frame base thirteenth enable.
- a fluid tank 27 for receiving a fluid bath 28 is formed on each frame part 11, 12, whereby the level of a bath surface 29 in the fluid tank 27 is adjusted by means of a filling level control (not shown).
- the scoop rollers 15 are arranged in each frame part 11, 12 so that they dive with a partial circumferential surface in the fluid bath 28 and remove fluid adhering to its peripheral surface 31 during rotation in the drive direction 30 to the fluid bath 28.
- the circumferential surface 31 may be provided with a suitable profiling or surface structure, which may for example have a plurality of scooping recesses formed on the circumferential surface 31.
- a fluid wedge 45 due to the rotation of the scoop roller 15 continuously with fluid from the Fluid bath 28 is supplemented and according to the rotation of the applicator roll 14 fluid is constantly removed, which is transferred to a peripheral surface 34 of the applicator roll 14 and transferred from this on a web bottom 43 and a web top 44 of a web 37.
- Fig. 1 shows, in the operation of the applicator 10, the web 37 is passed through an applicator nip 36 between the two opposing applicator rollers 14, wherein in a lead-in area 38 and a discharge area 39 of the applicator respectively a horizontally adjustable guide roller 40, 41 is arranged, which influences the Allow inlet angle ⁇ and a discharge angle ⁇ , which is formed between a nip plane 42 and the material web 37 in the inlet region 38 and in the outlet region 39.
- a horizontally adjustable guide roller 40, 41 which influences the Allow inlet angle ⁇ and a discharge angle ⁇ , which is formed between a nip plane 42 and the material web 37 in the inlet region 38 and in the outlet region 39.
- Fig. 3 shown schematically, forms between the web bottom 43 and the top web 44 of the web 37 and the respectively against the web bottom 43 and the top web 44 applied application roller 14, a contact force F from.
- the size of the contact force F can preferably be determined by an integrated into the applicator roller bearing 18, not shown force measuring device and used as a manipulated variable for the feed device 22 or 23, so that when exceeding a defined value for the contact force F, an increase in the axial distance a takes place between the applicator rollers 14.
- a determined for example in tests contact force F which allows for defined parameters, such as rolling belt speed and fluid viscosity, as uniform as possible fluid application to the web bottom 43 and web top 44 of the web 37, serve as a reference for the axial distance a, so that the setting the center distance a can be made depending on the contact force.
- scrapers 47, 48 are provided in the peripheral region of the scoop rollers 15, wherein the lower scraper 47 is arranged with its scraper edge 49 which extends parallel to the scoop roller axis 21, above a Eintauchtoxinss 50 of the scoop roller 15 on the fluid tank 27.
- the scraper 48 is located with its also parallel to the scoop roller axis 21 extending scraper edge 51 above the scoop roller axis 21st
Description
Die vorliegende Erfindung betrifft ein Auftragwerk zum Auftragen eines Fluids auf eine Materialbahn gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to an applicator for applying a fluid to a material web according to the preamble of claim 1.
Auftragwerke der eingangs genannten Art werden insbesondere zum Auftrag eines Gleitmittels auf metallische Folienbahnen verwendet, die nachfolgend ihrer Herstellung abgelängt oder zugeschnitten werden und als Zuschnitte in einem nachfolgenden Tiefziehverfahren in einer Tiefziehvorrichtung zu Formteilen umgeformt werden. In der Tiefziehvorrichtung werden die Zuschnitte von einem Tiefziehstempel in ein Tiefziehgesenk oder eine Tiefziehform eingepresst, wobei der in der Regel beidseitig auf den Zuschnitt aufgetragene Gleitmittelfilm eine Reduzierung der zwischen dem Tiefziehstempel und dem Zuschnitt sowie dem Zuschnitt und dem Tiefziehgesenk während der Umformung auftretenden Reibungskräfte sorgt. Um während des Tiefziehvorgangs eine möglichst einheitliche Beanspruchung der Oberfläche des Zuschnitts mit Reibungskräften und damit bei dem fertiggestellten Umformprodukt eine möglichst gute Oberflächenqualität zu erreichen sowie zur weitestgehenden Reduzierung der zur Durchführung des Umformvorgangs notwendigen Kräfte, die insbesondere maßgeblich sind für die Dimensionierung der Krafterzeuger und damit maßgeblich die Kosten für die Durchführung des Umformverfahrens beeinflussen, erweist es sich als wesentlich, eine möglichst gleichmäßige und flächendeckende Verteilung des Gleitmittels auf der Oberfläche des Zuschnitts zu erreichen.Applicators of the type mentioned are used in particular for the application of a lubricant to metallic film webs, which are cut to length according to their manufacture or cut and formed as blanks in a subsequent deep-drawing process in a thermoforming device to form parts. In the deep-drawing device, the blanks are pressed by a deep-drawing die into a deep-drawing die or a deep-drawing mold, wherein the lubricant film usually applied to the blank on both sides reduces the frictional forces occurring between the deep-drawing die and the blank as well as the blank and the deep-drawing die during the forming process. In order to achieve as uniform as possible a stress on the surface of the blank during the deep-drawing process with frictional forces and thus in the finished formed product as good as possible surface quality and the greatest possible reduction of the forces necessary to carry out the forming forces, which are particularly relevant for the dimensioning of the force generator and thus significantly If the cost of carrying out the forming process is affected, it proves essential to achieve the most uniform and comprehensive distribution possible of the lubricant on the surface of the blank.
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Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Auftragwerk der eingangs genannten Art vorzuschlagen, bei dem die Kontaktkraft zwischen den Auftragwalzen verändert werden kann, ohne dass hierdurch die Relativpositionierung der Auftragwalze gegenüber der zugeordneten Schöpfwalze beeinflusst wird.The present invention is therefore based on the object to propose an applicator of the type mentioned, in which the contact force between the applicator rollers can be changed, without affecting the relative positioning of the applicator roller relative to the associated scoop roller is influenced.
Diese Aufgabe wird durch ein Auftragwerk mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by an applicator with the features of claim 1.
Erfindungsgemäß weist das Auftragwerk zur Einstellung einer zwischen den Auftragwalzen und der Materialbahn wirkenden Kontaktkraft zumindest eine Auftragwalze auf, die mit einer auf die Auftragwalzenachse wirkenden Zustelleinrichtung versehen ist, die mit einer Messeinrichtung zur Messung der Kontaktkraft versehen ist, derart, dass eine Betätigung der Zustelleinrichtung in Abhängigkeit von der gemessenen Kontaktkraft erfolgt.According to the invention, the applicator for setting a force acting between the applicator rollers and the material web contact force at least one applicator roller which is provided with an acting on the applicator roller feed device, which is provided with a measuring device for measuring the contact force, such that actuation of the feed device in Dependence on the measured contact force occurs.
Das erfindungsgemäß ausgestaltete Auftragwerk ermöglicht über die Einstellung der Kontaktkraft einen gleichmäßigen Auftrag von Gleitmittel. Mithin kann durch die Vorgabe einer definierten Kontaktkraft bei konstanter durch die Schöpfwalzen bereitgestellter Fluidmenge ein entsprechend konstanter Gleitmittelauftrag erzeugt werden.The inventively designed applicator allows the adjustment of the contact force a uniform application of lubricant. Consequently, by providing a defined contact force with a constant amount of fluid provided by the scoop rollers, a correspondingly constant lubricant application can be generated.
Insbesondere bei einer elastischen Ausbildung der Oberfläche der Auftragwalzen ermöglicht die Veränderung der Kontaktkraft eine Beeinflussung der zwischen den Auftragwalzen und der Materialbahn ausgebildeten Kontaktfläche und somit eine entsprechende Beeinflussung des Gleitmittelauftrags.Particularly in the case of an elastic design of the surface of the application rollers, the change in the contact force makes it possible to influence the contact surface formed between the application rollers and the material web and thus to influence the lubricant application accordingly.
Erfindungsgemäß ist die Zustelleinrichtung derart ausgeführt, dass ein erstes Gestellteil und ein zweites Gestellteil jeweils eine Auftragwalze mit der zugeordneten Schöpfwalze aufweisen und zur Einstellung der Kontaktkraft ein Stellglied der Zustelleinrichtung vorgesehen ist, das auf einen Gestellteil wirkt, derart, dass die Relativposition der Gestellteile verändert wird, sodass es möglich ist, jeweils eine aus einer Auftragwalze und einer Schöpfwalze gebildete Walzenpaarung als Einheit gegenüber einer zweiten, aus Auftragwalze und Schöpfwalze gebildeten Walzenpaarung zu verstellen.According to the invention, the delivery device is embodied such that a first frame part and a second frame part each have an application roller with the associated scoop roller and an actuator of the delivery device is provided for adjusting the contact force, which acts on a frame part, such that the relative position of the frame parts is changed so that it is possible in each case to adjust a pair of rollers formed from an applicator roller and a scoop roller as a unit with respect to a second roller pair formed from applicator roller and scoop roller.
Eine besonders einfach realisierbare und kompakte Ausführung der Kraftmesseinrichtung wird möglich, wenn zur Ausbildung der Kraftmesseinrichtung zumindest ein Lager der Auftragwalzenachse mit einer Einrichtung zur Messung der Kontaktkraft versehen ist.A particularly easy to implement and compact design of the force measuring device is possible if at least one bearing of the applicator roller axis is provided with a device for measuring the contact force to form the force measuring device.
Besonders vorteilhaft ist es auch, wenn ein zwischen einer Schöpfwalze und einer Auftragwalze ausgebildeter Übergabespalt, der die Menge des von der Schöpfwalze auf die Auftragswalze übergebenen Fluids entscheidend mit beeinflusst, einstellbar ist.It is also particularly advantageous if a trained between a scoop roller and an applicator roll Transfer gap, which affects the amount of the transferred from the scoop roller on the applicator roll decisively, is adjustable.
Eine besonders genau reproduzierbare Einstellung des Übergabespalts wird möglich, wenn die Zustellungeinrichtung zur Einstellung des Übergabespaltes ein auf die Schöpfwalzenachse wirkendes Stellglied aufweist, das eine radiale Verstellung der Achse gegenüber einem die Lagerung der Achse aufnehmenden Gestellteil des Auftragwerks ermöglicht.A particularly accurate reproducible adjustment of the transfer gap is possible if the delivery device for adjusting the transfer gap has an acting on the scoop roller actuator, which allows a radial adjustment of the axis relative to a storage of the axis receiving frame part of the application.
Um zu verhindern, dass sich beispielsweise ein stabiles Fluidpolster zwischen einem von der Schöpfwalze auf die Auftragwalze übertragenen Gleitmittelauftrag und der Oberfläche der Auftragwalze aufbaut, ist es vorteilhaft, wenn die Schöpfwalzen mit einer Oszillationseinrichtung versehen sind, derart, dass die Schöpfwalzen Oszillationsbewegungen in Richtung ihrer Achse ausführen.In order to prevent, for example, a stable fluid cushion from building up on the applicator roller lubricant application and the surface of the applicator roll, it is advantageous if the scoop rollers are provided with an oscillating device, such that the scoop rollers oscillatory movements in the direction of its axis To run.
Besonders vorteilhaft lässt sich die Ausbildung eines Fluidpolsters zwischen der Oberfläche der Schöpfwalzen mit dem aus dem Fluidbad aufgenommenen Gleitmittelauftrag und der Oberfläche der Auftragwalze dadurch verhindern, dass die Schöpfwalzen an ihrer Umfangsfläche innerhalb eines Fluidtanks, der zur Aufnahme des Fluidbades dient, mit einer Abstreifvorrichtung versehen sind, die eine parallel zur Schöpfwalzenachse verlaufende und oberhalb eines Eintauchumfangs sowie unterhalb der Achse der Schöpfwalze angeordnete Abstreifkante aufweist.Particularly advantageous is the formation of a fluid cushion between the surface of the scoop rollers with the recorded from the fluid bath lubricant application and the surface of the applicator roll prevent it, that the scoop rollers are provided on its peripheral surface within a fluid tank, which serves to receive the fluid bath with a stripping which has a scraper edge running parallel to the scoop roller axis and arranged above an immersion circumference and below the axis of the scoop roller.
Hierdurch ist sichergestellt, dass sich die der Ausbildung von Fluidpolstern entgegenwirkende Abstreifkante in einer Relativposition zur Umfangsfläche der Schöpfwalze in unmittelbarer Nähe zum Übergang zwischen der Walzenoberfläche der Schöpfwalze und der Badoberfläche des Fluidbads befindet, so dass verhindert wird, dass sich eine große Stauwelle im Bereich dieses Übergangs ausbildet, welche das Entstehen eines Fluidpolsters fördern könnte.This ensures that the wiping edge counteracting the formation of fluid pads is in a position relative to the peripheral surface of the scoop roller in the immediate vicinity of the transition between the roller surface of the scoop roller and the bath surface of the fluid bath, thus preventing a large damming wave in the area of this Transition forms, which could promote the emergence of a fluid cushion.
Besonders vorteilhaft lässt sich die Wirkung einer ersten Abstreifvorrichtung verstärken, wenn die Schöpfwalzen oberhalb ihrer Achse mit einer zweiten Abstreifvorrichtung versehen sind, die eine parallel zur Schöpfwalzenachse verlaufende Abstreifkante aufweist.The effect of a first scraper device can be particularly advantageously enhanced if the scoop rollers are provided above their axis with a second scraper device which has a scraper edge running parallel to the scoop roller axis.
Eine weitere Verstärkung der vorteilhaften Wirkung der Abstreifvorrichtungen lässt sich erzielen, wenn die Abstreifvorrichtungen mit einer Oszillationseinrichtung versehen sind, derart, dass die Abstreifvorrichtungen eine Oszillationsbewegung in Richtung ihrer Längsachse ausführen.A further enhancement of the advantageous effect of the stripping devices can be achieved if the stripping devices are provided with an oscillation device, such that the stripping devices perform an oscillatory movement in the direction of their longitudinal axis.
Eine gegenseitige positive Beeinflussung der Oszillationsbewegungen lässt sich erreichen, wenn die Abstreifvorrichtungen derart an die zugeordneten Oszillationseinrichtungen angeschlossen sind, dass die Abstreifvorrichtungen gegensinnige Oszillationsbewegungen ausführen.A mutual positive influence on the oscillatory movements can be achieved if the stripping devices are connected to the associated oscillation devices in such a way that the stripping devices perform opposing oscillatory movements.
Wenn im Einlaufbereich und im Auslaufbereich der Auftragwalzen jeweils eine Umlenkrolle angeordnet ist, deren Relativanordnung zu den Auftragwalzen in horizontaler Richtung veränderbar ist, kann die Menge des Gleitmittelauftrags von den Auftragwalzen auf die Oberfläche der Materialbahn insbesondere durch eine Beeinflussung des zwischen der Materialbahn und den Auftragwalzen ausgebildeten Umschlingungswinkels beeinflusst werden.If in each case a deflection roller is arranged in the inlet region and in the outlet region of the application rollers whose relative arrangement is changeable to the application rollers in the horizontal direction, the amount of Gleitmittelauftrags of the application rollers on the surface of the material web in particular by influencing the formed between the material web and the application rollers Wrap angle can be influenced.
Für eine reproduzierbare Relativanordnung der Umlenkrollen gegenüber den Auftragwalzen können die Umlenkrollen mit einer Wegmesseinrichtung zur Erfassung ihrer horizontalen Position versehen sein.For a reproducible relative arrangement of the deflection rollers relative to the application rollers, the deflection rollers can be provided with a displacement measuring device for detecting their horizontal position.
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel des Auftragwerks anhand der Zeichnung näher erläutert. Es zeigen:
- Fig. 1
- ein Auftragwerk in Seitenansicht und einer ersten Konfiguration;
- Fig. 2
- das in
Fig. 1 dargestellte Auftragwerk in einer zweiten Konfiguration; - Fig. 3
- in schematischer Darstellung eine zwischen zwei Auftragwalzen des in
Fig. 1 dargestellten Auftragwerks gemäß dem Stand der Technik geführte Materialbahn.
- Fig. 1
- an applicator in side view and a first configuration;
- Fig. 2
- this in
Fig. 1 illustrated applicator in a second configuration; - Fig. 3
- in a schematic representation one between two application rollers of in
Fig. 1 shown applicator according to the prior art guided material web.
Die Gestellteile 11, 12 weisen jeweils eine Auftragwalzenlagerung 18 sowie eine Schöpfwalzenlagerung 19 auf, die die Ausrichtung und Anordnung einer Auftragwalzenachse 20 zur Schöpfwalzenachse 21 in dem Gestellteil 11 bzw. 12 definieren.The
Wie ferner aus einem Vergleich der
Wie
Wie in der
Wie
Wie in
Die Größe der Kontaktkraft F kann vorzugsweise durch eine in die Auftragwalzenlagerung 18 integrierte, hier nicht näher dargestellte Kraftmesseinrichtung ermittelt und als Stellgröße für die Zustelleinrichtung 22 oder 23 verwendet werden, so dass etwa bei Überschreitung eines für die Kontaktkraft F definierten Sollwertes eine Vergrößerung des Achsabstands a zwischen den Auftragwalzen 14 erfolgt. Hierdurch kann eine beispielsweise in Versuchen ermittelte Kontaktkraft F, die für definierte Parameter, wie Walzbandgeschwindigkeit und Fluidviskosität, einen möglichst gleichmäßigen Fluidauftrag auf die Bahnunterseite 43 bzw. Bahnoberseite 44 der Materialbahn 37 ermöglicht, als Referenz für den Achsabstand a dienen, so dass also die Einstellung des Achsabstands a in Abhängigkeit von der Kontaktkraft erfolgen kann.The size of the contact force F can preferably be determined by an integrated into the applicator roller bearing 18, not shown force measuring device and used as a manipulated variable for the
Wie ferner den
Claims (11)
- An applicator (10) for applying a fluid onto a material web (37), having at least two applicator rolls (14) being driven in opposite directions and in the direction of web travel, the material web being guided between said rolls while the applicator is running, and having at least two drawing rolls (15), which are each assigned to an applicator roll and convey fluid, by way of rotation of their circumferential surface (31) through a fluid bath (28), from the fluid bath onto a circumferential surface (34) of the assigned applicator roll that is driven in the opposite direction of the drawing roll,
wherein, for setting a contact force that acts between the applicator rolls and the material web, the applicator rolls are each equipped with a positioning unit (22, 23) which acts on the applicator roll axis (20), the positioning units (22, 23) being equipped with a measuring unit for measuring the contact force, in such a manner that the positioning unit is actuated as a function of the measured contact force, a first framework part (11) and a second framework part (12) each including one applicator roll (14) having the assigned drawing roll (15), and the positioning units (22, 23) including an actuator for setting the contact force, which actuator acts on a framework part in such a manner that the relative position of the framework parts is changed,
characterised in that
the first framework part (11) is vertically movable with respect to the second framework part (12) and to a framework base (13) by means of the first positioning unit (22) and the second framework part (12) is horizontally movable with respect to the first framework part (11) and to the framework base (13) by means of the second positioning unit (23). - The applicator according to claim 1,
characterised in that
for constructing the force measuring unit, at least one bearing of the applicator roll axis (20) is equipped with a unit for measuring the contact force. - The applicator according to claim 1 or 2,
characterised in that
a transfer gap (35) being constructed between a drawing roll (15) and an applicator roll (14) can be set by means of a positioning unit. - The applicator according to claim 3,
characterised in that
the positioning unit, for setting the transfer gap (35), includes an actuator which acts on a drawing roll axis (21) of the drawing roll (15), and which allows for radial displacement of the drawing roll axis with respect to a framework part (11, 12) of the applicator (10), said framework part receiving the bearing of the axis. - The applicator according to one of the preceding claims,
characterised in that
the drawing rolls (15) are equipped with an oscillation unit, in such a manner that the drawing rolls perform an oscillation movement in the direction of their axis. - The applicator according to one of the preceding claims,
characterised in that
the drawing rolls (15), at their circumferential surface within a fluid tank (27) for receiving the fluid bath (28), are equipped with a scraping device (47), having a scraping edge (49) extending parallel to the drawing roll axis (21) and being disposed above a an immersion circumference (50) as well as below the drawing roll axis. - The applicator according to claim 6,
characterised in that
the drawing rolls (15), above the drawing roll axis (21), are equipped with a second scraping device (48), which includes a scraping edge (51) extending parallel to the drawing roll axis. - The applicator according to claim 6 or 7,
characterised in that
the scraping devices (47, 48) are equipped with an oscillation device, in such a manner that the scraping devices perform an oscillation movement in the direction of their longitudinal axes. - The applicator according to claim 8,
characterised in that
the scraping devices (47, 48) are connected to the assigned oscillation units in such a manner that the scraping devices perform oscillation movements in opposite directions. - The applicator according to one of the preceding claims,
characterised in that
in the inlet region (38) and in the outlet region (39) of the applicator rolls (14), one deflexion pulley (40, 41) is in each instance arranged, whose arrangement relative to the applicator rolls can be changed in the horizontal direction. - The applicator according to claim 10,
characterised in that
the deflexion pulleys (40, 41) are equipped with a path-measuring unit for identifying their horizontal position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012204878A DE102012204878A1 (en) | 2012-03-27 | 2012-03-27 | commissioned |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2644283A1 EP2644283A1 (en) | 2013-10-02 |
EP2644283B1 EP2644283B1 (en) | 2015-07-08 |
EP2644283B2 true EP2644283B2 (en) | 2018-06-27 |
Family
ID=47900566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13156791.9A Active EP2644283B2 (en) | 2012-03-27 | 2013-02-26 | Coating system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2644283B2 (en) |
DE (1) | DE102012204878A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015210685A1 (en) * | 2014-11-14 | 2016-05-19 | Sms Group Gmbh | Plant for coating at least one side of a band-shaped substrate |
DE102019123050B4 (en) * | 2019-08-28 | 2021-03-18 | Achenbach Buschhütten GmbH & Co. KG | Commissioned work |
DE102019125269A1 (en) * | 2019-09-19 | 2021-03-25 | Achenbach Buschhütten GmbH & Co. KG | Commissioned work |
WO2022087882A1 (en) * | 2020-10-28 | 2022-05-05 | 苏州法比瑞纺织科技有限公司 | Cloth material coating device |
CN113926656A (en) * | 2021-11-23 | 2022-01-14 | 涿州北方重工设备设计有限公司 | Waxing machine |
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JPS62149375A (en) † | 1985-12-24 | 1987-07-03 | Kawasaki Steel Corp | Method for preventing stripe pattern on coated film |
JPH03188973A (en) † | 1989-12-20 | 1991-08-16 | Kawasaki Steel Corp | Method for preventing occurrence of linear flaw in coated steel strip |
DE69121351T2 (en) † | 1990-10-12 | 1997-01-16 | Valmet Corp | Device for dosing an agent to be applied to a moving base |
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JPH10146562A (en) † | 1996-11-20 | 1998-06-02 | Kawasaki Steel Corp | Method and device for uniformly applying surface treatment liquid to metallic band |
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Also Published As
Publication number | Publication date |
---|---|
EP2644283A1 (en) | 2013-10-02 |
EP2644283B1 (en) | 2015-07-08 |
DE102012204878A1 (en) | 2013-10-02 |
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