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EP0829575B1 - Procédé et dispositif pour l'application directe ou indirecte d'un médium liquide ou pasteux sur une bande de matérial mouvante - Google Patents

Procédé et dispositif pour l'application directe ou indirecte d'un médium liquide ou pasteux sur une bande de matérial mouvante Download PDF

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Publication number
EP0829575B1
EP0829575B1 EP97111574A EP97111574A EP0829575B1 EP 0829575 B1 EP0829575 B1 EP 0829575B1 EP 97111574 A EP97111574 A EP 97111574A EP 97111574 A EP97111574 A EP 97111574A EP 0829575 B1 EP0829575 B1 EP 0829575B1
Authority
EP
European Patent Office
Prior art keywords
medium
profile
application
web
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97111574A
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German (de)
English (en)
Other versions
EP0829575A1 (fr
Inventor
Manfred Ueberschär
Anton Plomer
Hans-Peter Dr. Sollinger
Bernhard Kohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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Filing date
Publication date
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0829575A1 publication Critical patent/EP0829575A1/fr
Application granted granted Critical
Publication of EP0829575B1 publication Critical patent/EP0829575B1/fr
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0283—Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction of the work
    • 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
    • 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
    • D21H23/78—Controlling or regulating not limited to any particular process or apparatus
    • 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

Definitions

  • the invention relates to methods for direct or indirect Apply a liquid or pasty medium to a running material web, in particular made of paper or cardboard, and devices for performing the method.
  • From DE-A-44 32 177 is a commissioned work for direct or indirect application of a liquid or pasty Known medium on a running web of material.
  • the the described work is a free jet nozzle work, where the free jet nozzle of two elongated lip elements is formed.
  • the Dosing gap of the free jet nozzle i.e. the distance between the two lip elements, is about the longitudinal extent of the Lip elements, i.e. across the width of those to be coated Material web, differently adjustable in zones. Consequently can indicate the application quantity of the liquid or pasty medium the free jet nozzle can be dosed differently in zones.
  • the Free jet nozzle work can also be a Be finely metered, which by means of a Doctor element, e.g. a doctor blade, excess applied liquid or pasty medium on the desired final cross profile.
  • the invention is based on the technical problem To create methods and associated devices in which the regulation of the profile of the applied liquid or pasty medium is simplified.
  • this technical problem is solved by one Method with the features of claim 1 and one Procedure with the characteristics of the sibling Claim 2 and a device with the Features of claim 3 and a device with the Features of the independent claim 6 solved.
  • the invention is based on the idea of separating the Regulation of the cross profile and regulation of the longitudinal profile to make.
  • the cross profile of the applied is regulated liquid or pasty medium immediately when applied of the medium and the regulation of the longitudinal profile of the subsequently applied liquid or pasty medium, So downstream in the direction of flow, on the previous one applied medium.
  • Variant regulates the longitudinal profile of the applied liquid or pasty medium immediately when applying the medium and regulating the cross profile of the applied liquid or pasty medium in Then the direction of flow on the previously applied medium.
  • the cross profile is replaced by a corresponding zone-wise different dosage at Process of applying the medium controlled while the Longitudinal profile already in a downstream process applied medium is controlled.
  • the second variant is the longitudinal profile by a corresponding total dosage controlled during the process of applying the medium while the cross section in a downstream process by a zone-wise influencing of the already applied medium is controlled.
  • the two variants according to the invention differ from the principle only in that related on the flow direction of the associated system Influencing the cross profile and the longitudinal profile in a spatially reverse sequence takes place.
  • the cross profile of the applied medium is the contour the applied coating across the transverse direction of the Material web, i.e. across the width of the material web.
  • the Longitudinal profile refers to the course of the coating in Longitudinal direction of the material web, that is in the direction of flow of the Material web.
  • the longitudinal profile is the final one so-called stroke weight set. One should predetermined average order quantity per Material web area for the continuous material web be respected.
  • the longitudinal profile adjustment device So can the cross section, as far as it part of the medium that has already penetrated into the material web concerned, no longer change.
  • the two variants of the invention result in practical implementation of a certain mutual Influencing or feedback between the successive control stations for the respective Regulation of longitudinal and transverse profiles.
  • This certain Feedback is going in both directions - possibly different levels - take place, i.e. of the Longitudinal profile control on the cross profile control and vice versa.
  • An influence on the cross profile by the Longitudinal profile control station can at the Cross profile control station are compensated accordingly and vice versa.
  • an operating state must first be set. This can still at both control stations, i.e. at the Longitudinal profile control station and the Cross profile control station, one by zone different setting may be required.
  • the System has been started up and then adjusted according to the invention during operation different zones, i.e. across the web width locally different influence only at the Cross profile control station made while at the Longitudinal profile control station only an overall influence over the web width is made.
  • the control process is significantly simplified.
  • the methods of the invention can be used both in direct as well as with the indirect application of a liquid or pasty medium on a running web of material that from Paper, cardboard, a textile material or the like exists, are used.
  • a liquid or pasty medium directly on the surface applied a running web of material in the area of Order point supported on a rotating counter surface becomes.
  • Such a circumferential counter surface is the Shell surface of a rotating counter roller, the surface a continuous endless belt or the like is formed.
  • the liquid or pasty medium first immediately on the surface of a revolving Application area applied.
  • Such an all-round The application surface is a rotating surface Applicator roller, as the surface of a circulating application endless belt or the like.
  • an application roller is the one applied Medium in an application gap on the surface of a Transfer material web.
  • Such an order gap will be for example between an application roller and a counter roller or e.g. also between a continuous order and an order Counter endless belt is formed and the material web is through the Order gap passed through there to the medium on the Transfer material web.
  • the cross profile over the web width during the order immediately first on the material web or during the order affects an order area controlled by zones.
  • the method according to the invention can be used for different types of orders. So e.g. for an application of the medium in a free jet, for application of the medium by means of a doctor element, for application of the medium by means of a scoop roller and comparable order types. In a preferred one However, the embodiment is carried out in a free one Beam.
  • a doctor element is a Squeegee blade, squeegee bar or roller squeegee used.
  • a Air knife or another known to those skilled in the art Leveling element can be used.
  • the Cross profile and the control of the longitudinal profile of the applied medium separately from each other in automatic Control loops.
  • the control loops are based on measurements of the Profile of the medium on the surface of the material web or completely applied to the surface of the application area is, i.e. the measurements are after the point on which affects the longitudinal profile or the measurements can alternatively go directly to the order point downstream.
  • the measured actual values of the applied profiles are continuously computer-aided predetermined target values for the profile are compared and resulting deviations are separated into corresponding ones Control instructions for influencing the cross profile and implemented to influence the longitudinal profile.
  • the second method according to the invention works analogously to first method according to the invention explained above, however, one is now on the order facility Total dosing of the order amount made to the To influence the longitudinal profile directly during the job, and in a downstream arrangement takes place in zones Influencing the applied medium by means of a Leveling element to close the cross section of the medium influence.
  • An inventive device for performing the first is designed as follows. It is an application device for applying a liquid or pasty medium provided, which preferably as Free jet nozzle work is designed, however, also as doctor element-pressure chamber applicator, doctor element-sump applicator or another, known per se Commissioned work can be carried out.
  • the order setup is assigned to a peripheral counter surface on which the coating, running material web is supported. How already explained above, the circumferential counter surface as rotating counter roller, rotating endless belt or the like be trained.
  • the Order setup of a circulating order area that is a rotating application roller, a continuous endless belt or the like. From the surface of this the surrounding order area will be the medium in one Transmission gap through which the running material web passed through, transferred to this.
  • the order quantity of medium is directly at the order facility by means of appropriate adjustment devices across the web width dosed independently in zones. Such Adjustment devices or adjustable dosing devices are known per se and for example in the beginning mentioned DE-A-44 32 177 explained.
  • the order facility is followed by a Equalization device provided in the case of a direct Apply the medium to either the same counter surface is assigned to which the order facility is also assigned or is assigned to its own separate counter surface.
  • the Leveling device of the surrounding order area assigned is preferably over the material web width can be set independently in zones make a basic setting when starting the device to be able to. Furthermore, the leveling device as a whole is in with respect to the assigned counter surface or the assigned Order area adjustable to the in operation To be able to make longitudinal profile settings.
  • Doctor element such as a doctor blade, an air knife or a comparable facility.
  • Leveling device preferably one Basic setting to only when starting the To be able to make a basic setting for each zone, as well as an overall adjustment device to move during operation a necessary readjustment of the preset To be able to make leveling device.
  • the device according to the invention further comprises a Measuring device for detecting the cross profile of the applied medium.
  • the measuring device exists preferably from a measuring frame with a large number of them over the web width arranged measuring sensors and is the Leveling device or directly from the order point downstream. By continuously measuring the Cross profile also becomes the longitudinal profile of the continuous one Material web detected.
  • a computer-aided, automatic control device provided with the Measuring device, the metering device and the Leveling device forms control loops.
  • the measuring device, the control device and the Dosing device of the application device a first independent control loop for controlling the cross profile of the applied medium and the measuring device, the Control device and the overall adjustment device of the Leveling device a second independent control loop to regulate the longitudinal profile of the applied medium.
  • the leveling device with relative can be manufactured and operated with little effort, so that corresponding cost savings can be achieved.
  • a single control device be provided, one corresponding to the two independent control loops separate control of the Cross profile adjustment on the dosing device of Order setup and the longitudinal profile adjustment at the Complete adjustment device of the leveling device.
  • the control device can be integrated into a device Cross profile control unit and a longitudinal profile control unit be divided, the former being the Cross section control loop and the latter the longitudinal profile control loop assigned.
  • An inventive device for performing the second method according to the invention differs from the above-described device for performing the first method according to the invention in that at the A total dosing device is provided for the application device is through a across the entire web width effective change in the order quantity of the medium, e.g. by Varying the amount of the pump to influence the longitudinal profile.
  • a zone is also different adjustable basic metering device on the Application device provided to during the start of the Attach a basic setting of the order setup to be able to make.
  • the basic dosing device and the Total dosing device can be used in the constructive Be combined with each other, such as that a zone-wise adjustable dosing device on the Application device is provided during operation is only adjusted as a whole.
  • the device for performing the second inventive method in that the Leveling device now over the web width can be set differently in zones in order to achieve that To influence the cross-section of the medium.
  • two separate Control loops provided, namely a longitudinal profile control loop and a cross section control loop.
  • the longitudinal profile control loop includes the measuring device, the control device and the Total metering device of the application device, during the Cross section control loop the measuring device that Control device and the different zones adjustable adjustment device of the leveling device includes.
  • Fig. 1 comprises a Commissioned work, generally designated 11 an application device 15, a Leveling device 17 and a counter roller 12. Die Counter roller 12 rotates in the direction of the arrow and is supported on it Lateral surface along a support section a running Paper web 9. The direction of travel of the paper web 9 is indicated by arrows.
  • the paper web 9 On the inlet side to the commissioning plant 11, that is to the left in Fig. 1, the paper web 9 over a Web guide roller 13 fed and the output side of the applicator 11, ie in Fig. 1 right, the paper web 9 after the Coating removed via a web guide roller 14.
  • the Application device 15 is the paper web 9 to be coated assigned in the area in which the paper web on the Counter roll 12 is supported.
  • the application device 15 is a free-jet nozzle application device trained in a conventional manner.
  • a liquid or pasty medium 10 that is running on Paper web 9 is to be applied from a Dosing gap formed between two lips 15a, 15b, applied to the paper web in a free jet.
  • the medium 10 which is illustrated by dots in FIG. 1 is, for example, a pigmented one Coating color, an impregnating liquid or starch.
  • the Application device 15 is known per se Adjustment device 16 equipped to the metering gap between lips 15a, 15b across the width of the paper web to be able to set zones independently. For this are for example, automatically actuated adjusting spindles the length of the metering gap is distributed. The single ones Adjusting spindles then locally adjust the one Lip element with respect to the other, so the gap width to change.
  • the leveling device 17 is in the direction of flow Paper web 9 seen, the application device 15th downstream and also assigned to an area where the paper web is supported on the counter roller 12.
  • the Leveling device is in a manner known per se with a Roller doctor 17a equipped in a doctor bed 17b is rotatably mounted.
  • the doctor blade arrangement 17a, 17b is on a support beam 17e attached.
  • Between a support bar 17d and a back surface of the doctor bed 17b is one Pressure hose 17c provided.
  • the pressure hose 17c is in its interior filled with compressed air, its pressure level can be set differently. Thus through Changing the pressure level in the pressure hose 17c the doctor bed 17b and thus the doctor blade 17a as a whole as required stronger or less against those previously with the medium 10 coated paper web 9 pressed.
  • the leveling device 17 is also provided with an adjusting device 18 in order to one across the width of the paper web 9 different basic setting of the pressing force Roll squeegee 17a.
  • adjustment spindles are over the length of the leveling device is arranged to be distributed a rear surface of the support bar 17c and thus ultimately to apply the roller doctor blade 17a differently locally.
  • the adjusting device 18 does not have to be actuated automatically be because they are just adjusting a basic setting serves when starting up the system.
  • 1 is also a Deflection compensation device 19 for the support beam 17e intended. Such a deflection compensation device can of course also in the application device 15 if required to be available.
  • a measuring station 21 is attached in front of the web guide roller 13, that by means of appropriate sensors known per se Way the fed paper web 9 in its initial profile measured across the web width before the paper web then runs through the order work 11.
  • Another Measuring station 22 is provided after the web guide roller 14 the profile of the paper web 9 over its web width after the Measure coating with the medium 10 on the applicator 11.
  • the second measuring station 22 is only after one Drying device (not shown) provided to the dried coating result to the measuring station to capture.
  • Both measuring stations 21, 22 send their measured values continuously to a computer 23, which the cross profile of the applied medium 10 over the web width of the paper web 9 determined. By continuously determining the Cross profile also results in the longitudinal profile of the coating with the medium 10 for the continuous paper web 9.
  • the computer 23 is connected to a via lines 23a Control unit 20 connected. Furthermore, the Control unit 20 via lines 24 the setpoints for the Cross profile of the coating medium. The control unit 20 is via lines 25 with the adjusting device 16th connected.
  • the computer 23 is also connected to a via a line 23b Control unit 26 connected.
  • the control unit 26 receives the setpoint for the longitudinal profile via a line 27 of the coating medium in the direction of travel of the paper web.
  • the control unit 26 is connected to a via a line 28 Transmitter 29 connected, which in turn via a line 30 is connected to the pressure hose 17c.
  • Fig. 1 The Application device 15 becomes the liquid or pasty medium 10 in a free beam according to a given one Cross profile in different doses across the web width applied to the running paper web 9. Subsequently squeegee doctor blade 17a on leveling device 17 a certain one according to a given longitudinal profile Amount of the previously applied medium 10. The doctored Medium 10 is on the doctor blade 17a by an arrow indicated. On the application device 15, the cross profile set, while on the leveling device 17 Longitudinal profile is set.
  • the actual coating result on paper web 9 is constantly monitored by the measuring stations 21, 22. From the the computer 23 determines the measured values obtained there the actual values for the cross section of the Coating medium and the actual value for the longitudinal profile of the coating medium.
  • the cross section is made if necessary adjusted.
  • the control unit 20 receives from Computer 23 continuously ascertains the lines 23a Actual values of the cross section. These actual values are compared with the predefined target values for the cross section, the the control unit 20 receives via the lines 24. Deviations between the actual values and the target values are converted into corresponding manipulated variables which are controlled via the Lines 25 passed on to the adjusting device 16 become. Appropriate local ones then take place there Readjustment of the metering gap. Thus the local Order quantity adjusted over the web width and that maintain the specified, desired cross profile.
  • a second independent control loop, that of the measuring stations 21, 22, the computer 23, the control unit 26, the Transmitter 29 and the pressure hose 17c is formed the regulation of the longitudinal profile of the coating medium.
  • the Control unit 26 continuously receives the actual value from computer 23 of the longitudinal profile. This is constantly with the target value for the longitudinal profile that the control unit 26 receives via line 27.
  • a deviation between the actual value and the target value of the longitudinal profile is converted into a corresponding control variable implemented via line 28 is passed on to the transmitter 29.
  • the manipulated variable is converted into a corresponding pressure change in the Pressure hose 17c implemented on the pressure hose 17c is passed on via the fluid pressure line 30.
  • the adjustment of the metering gap width on the Application device 15 via the adjustment device 16 pneumatic, hydraulic or similar, can between the control unit 20 and the Adjustment device 16 also a transmitter be interposed, the electrical control signals in implement a corresponding fluid change.
  • the medium is first of all from the application device 15 applied to the outer surface 33 of an application roller 31.
  • the application roller 31 rotates in the direction of the arrow. So happens the medium 10 applied by the application device 15 the rotation of the application roller 31, the Leveling device 17, before the medium is then added the further rotation of the application roller 31 in one Order gap 32 arrives.
  • the regulation of the cross section and the longitudinal profile of the applied medium 10 is thus on the application device 15 and the leveling device 17.
  • the set in its cross and longitudinal profile, applied medium 10 then runs on the outer surface 33 of the Applicator roller 31 in the nip or transfer nip 32 into where the medium on the running material web 9th is transmitted, which passes through the nip becomes.
  • two application rollers 31 with the associated order facilities 15 and Leveling devices 17 arranged symmetrically and form the nip 32 between them.
  • This arrangement is for a coating on both sides of the material web 9 is suitable.
  • one of the two application rollers 31 with the Application device 15 and the leveling device 17 through a rotating counter roll to be replaced with the other applicator roller 31 forms the nip 32.
  • a such an arrangement is for a one-sided coating Material web 9 sufficient.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

  1. Procédé d'application directe ou indirecte d'un milieu liquide ou pâteux sur une bande de matériau en mouvement, en particulier en papier ou en carton, dans lequel :
    un milieu liquide ou pâteux (10) est appliqué par enduction directe directement sur la surface d'une bande de matériau (9) supportée sur une contre-face périphérique (12 ; 12') ou est appliqué par enduction indirecte tout d'abord sur la surface (33) d'une face d'enduction (31) périphérique, de laquelle le milieu enduit (10) est appliqué dans une fente d'enduction (32), à travers laquelle on fait passer une bande de matériau (9), sur cette dernière, et
    pendant l'enduction (15), le profil transversal du milieu (10) est influencé de manière contrôlée par zones sur toute la largeur de la bande de matériau, et
    dans la direction d'avance après l'enduction, le profil longitudinal du milieu (10) appliqué auparavant directement sur la surface de la bande de matériau (9) ou la surface de la face d'enduction est influencé (17) de manière contrôlée,
    la commande du profil transversal et la commande du profil longitudinal du milieu enduit (10) s'effectuant de manière séparée l'une de l'autre dans des circuits de régulation automatiques (21, 22, 23, 20, 16 ; 21, 22, 23, 26, 29, 17c) sur la base de mesures (21, 22) du profil du milieu (10) appliqué sur la surface de la bande de matériau (9) ou la surface de la face d'enduction, en comparant la valeur réelle mesurée (23a ; 23b) du profil appliqué en continu de manière assistée par ordinateur avec des valeurs de consigne prédéterminées (24; 27) et en convertissant les variations résultantes en indications de commande séparées correspondantes (25; 28) pour influencer (16) le profil transversal et pour influencer (17c) le profil longitudinal.
  2. Procédé d'application directe ou indirecte d'un milieu liquide ou pâteux sur une bande de matériau en mouvement, en particulier en papier ou en carton, dans lequel :
    un milieu liquide ou pâteux est appliqué directement, lors de l'enduction directe, sur la surface d'une bande de matériau supportée sur une contre-face périphérique ou est appliqué, lors d'une enduction indirecte, tout d'abord sur la surface d'une face d'enduction périphérique, de laquelle le milieu enduit est appliqué dans une fente d'enduction, à travers laquelle on fait passer une bande de matériau, sur cette dernière, et
    pendant l'enduction, le profil longitudinal du milieu est influencé de manière contrôlée, et
    dans la direction d'avance après l'enduction, le profil transversal du milieu appliqué auparavant directement sur la surface de la bande de matériau ou la surface de la face d'enduction est influencé de manière contrôlée par zones,
    la commande du profil longitudinal et la commande du profil transversal du milieu appliqué s'effectuant de manière séparée l'une de l'autre dans des circuits de régulation automatiques sur la base de mesures du profil du milieu appliqué sur la surface de la bande de matériau ou la surface de la face d'enduction, en comparant la valeur réelle mesurée du profil appliqué en continu de manière assistée par ordinateur avec des valeurs de consigne prédéterminées et en convertissant les variations résultantes en indications de commande séparées correspondantes pour influencer le profil longitudinal et pour influencer le profil transversal.
  3. Dispositif de mise en oeuvre du procédé selon la revendication 1, comprenant :
    un dispositif d'enduction (15) pour l'application d'un milieu liquide ou pâteux (10),
    une contre-face périphérique (12; 12') associée au dispositif d'enduction (15), sur laquelle est supportée une bande de matériau en mouvement (9), ou une face d'enduction périphérique (31) associée au dispositif d'enduction (15), qui est associée à une fente de transfert (32), à travers laquelle on fait passer une bande de matériau en mouvement (9),
    un dispositif de dosage (15a, 15b, 16) ajustable indépendamment par zones sur la largeur de la bande de matériau et se trouvant sur le dispositif d'enduction (15) pour le milieu à appliquer,
    un dispositif d'égalisation (17) placé après le dispositif d'enduction (15), associé à une contre-face périphérique (12; 12') ou à la face d'enduction périphérique, avec un dispositif de réglage d'ensemble (17c, 29, 30) ajustable par rapport à la contre-face (12; 12') ou à la face d'enduction,
    un dispositif de mesure (21, 22, 23) pour détecter le profil transversal et le profil longitudinal du milieu appliqué (10), et
    un dispositif de commande automatique assisté par ordinateur (20, 26), qui forme des circuits de régulation avec le dispositif de mesure (21, 22, 23), le dispositif de dosage (15a, 15b, 16) et le dispositif d'égalisation (17),
    le dispositif de mesure (21, 22, 23), le dispositif de commande (20) et le dispositif de dosage (15a, 15b, 16) formant un circuit de régulation du profil transversal indépendant pour le milieu appliqué (10) et
    le dispositif de mesure (21, 22, 23), le dispositif de commande (26) et le dispositif de réglage d'ensemble (17c, 29, 30) formant un circuit de régulation du profil longitudinal indépendant pour le milieu appliqué (10).
  4. Dispositif selon la revendication 3, caractérisé en ce que pour pouvoir prendre en charge un ajustage de base par zones du dispositif d'égalisation (17) lors du démarrage de l'installation, le dispositif d'égalisation (17) est muni d'un dispositif d'ajustage de base (18) ajustable indépendamment par zones sur la largeur de la bande de matériau.
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que le dispositif de commande est divisé en une unité de commande séparée (20) du profil transversal associée au circuit de régulation du profil transversal et une unité de commande séparée (26) du profil longitudinal associée au circuit de régulation du profil longitudinal.
  6. Dispositif pour la mise en oeuvre du procédé selon la revendication 2, comprenant :
    un dispositif d'enduction pour l'application d'un milieu liquide ou pâteux,
    une contre-face périphérique associée au dispositif d'enduction, sur laquelle est supportée une bande de matériau, ou une face d'enduction périphérique associée au dispositif d'enduction, qui est associée à une fente de transfert, à travers laquelle on fait passer une bande de matériau en mouvement,
    un dispositif de dosage d'ensemble pour le milieu à appliquer, se trouvant sur le dispositif d'enduction,
    un dispositif d'égalisation placé après le dispositif d'enduction, associé à une contre-face périphérique ou à la face d'enduction périphérique, avec un dispositif de réglage ajustable indépendamment par zones sur la largeur de la bande de matériau,
    un dispositif de mesure pour détecter le profil longitudinal et le profil transversal du milieu appliqué, et
    un dispositif de commande automatique assisté par ordinateur, qui forme des circuits de régulation avec le dispositif de mesure, le dispositif de dosage d'ensemble et le dispositif de réglage du dispositif d'égalisation,
    le dispositif de mesure, le dispositif de commande et le dispositif de dosage d'ensemble formant un circuit de régulation indépendant du profil longitudinal pour le milieu appliqué et
    le dispositif de mesure, le dispositif de commande et le dispositif de réglage du dispositif d'égalisation formant un circuit de régulation indépendant du profil transversal pour le milieu appliqué.
  7. Dispositif selon la revendication 6, caractérisé en ce que pour pouvoir prendre en charge un ajustage de base par zones du dispositif d'enduction lors du démarrage de l'installation, le dispositif d'enduction est muni d'un dispositif de dosage de base pour le milieu à appliquer ajustable indépendamment par zones sur la largeur de la bande de matériau.
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que le dispositif de commande est divisé en une unité de commande séparée du profil longitudinal associée au circuit de régulation du profil longitudinal et une unité de commande séparée du profil transversal associée au circuit de régulation du profil transversal.
EP97111574A 1996-09-12 1997-07-09 Procédé et dispositif pour l'application directe ou indirecte d'un médium liquide ou pasteux sur une bande de matérial mouvante Expired - Lifetime EP0829575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637164 1996-09-12
DE19637164A DE19637164A1 (de) 1996-09-12 1996-09-12 Verfahren und Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn

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EP0829575A1 EP0829575A1 (fr) 1998-03-18
EP0829575B1 true EP0829575B1 (fr) 2001-03-14

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EP97111574A Expired - Lifetime EP0829575B1 (fr) 1996-09-12 1997-07-09 Procédé et dispositif pour l'application directe ou indirecte d'un médium liquide ou pasteux sur une bande de matérial mouvante

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US (1) US6010739A (fr)
EP (1) EP0829575B1 (fr)
JP (1) JPH1085649A (fr)
AT (1) ATE199753T1 (fr)
DE (2) DE19637164A1 (fr)

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Also Published As

Publication number Publication date
DE19637164A1 (de) 1998-03-19
US6010739A (en) 2000-01-04
EP0829575A1 (fr) 1998-03-18
ATE199753T1 (de) 2001-03-15
DE59703130D1 (de) 2001-04-19
JPH1085649A (ja) 1998-04-07

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