EP0821102B1 - Dispositif pour l'application directe d'une substance fluide ou pâteuse sur une bande en mouvement, particulièrement de papier ou carton - Google Patents

Dispositif pour l'application directe d'une substance fluide ou pâteuse sur une bande en mouvement, particulièrement de papier ou carton Download PDF

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Publication number
EP0821102B1
EP0821102B1 EP97109654A EP97109654A EP0821102B1 EP 0821102 B1 EP0821102 B1 EP 0821102B1 EP 97109654 A EP97109654 A EP 97109654A EP 97109654 A EP97109654 A EP 97109654A EP 0821102 B1 EP0821102 B1 EP 0821102B1
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EP
European Patent Office
Prior art keywords
metering device
zones
zone
web
actuators
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
EP97109654A
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German (de)
English (en)
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EP0821102A2 (fr
EP0821102A3 (fr
Inventor
Manfred Ueberschär
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1996127470 external-priority patent/DE19627470A1/de
Priority claimed from DE1996127489 external-priority patent/DE19627489A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0821102A2 publication Critical patent/EP0821102A2/fr
Publication of EP0821102A3 publication Critical patent/EP0821102A3/fr
Application granted granted Critical
Publication of EP0821102B1 publication Critical patent/EP0821102B1/fr
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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
    • B05C11/04—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 with blades
    • B05C11/041—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 with blades characterised by means for positioning, loading, or deforming the blades
    • B05C11/042—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 with blades characterised by means for positioning, loading, or deforming the blades allowing local positioning, loading or deforming along the blades
    • 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
    • D21H23/34—Knife or blade type coaters
    • 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
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades

Definitions

  • the present invention relates to an applicator for direct application of a liquid or pasty medium to a running material web, in particular made of paper or cardboard. Furthermore, the invention relates to a method for the controlled setting of a desired transverse profile of a liquid or pasty medium applied to a running material web by means of such an applicator.
  • Coating lines used to make a running web of material for example made of paper, cardboard or a textile material exists, on one or both sides with one or more Layers of liquid or pasty coating media too Mistake.
  • the coating media is for example about color, starch, impregnation liquid or like.
  • the liquid or pasty medium from an application device directly onto the Surface of the running web of material applied during the application on a rotating counter surface, for example an endless belt or a counter roller, is supported.
  • the Application device usually as a pre-metering device designed the liquid or pasty medium initially orders in excess order quantity.
  • the pre-metering device is in the direction of travel of the material web expediently a final metering device (also Fine dosing device, finished dosing device or Equalization device) connected downstream, which previously excess applied by the pre-metering device Medium with the help of a running material web pressed, consistently over essentially the entire Web width extending doctor element, such as one Doctor blade, a doctor blade or the like, doctored and so the desired final order quantity on the Material web achieved.
  • the final dispenser is common in a variety of cross-directional Zones divided into material web (see e.g.
  • each zone normally an actuator is assigned so that by a different influence of the Contact pressure of the doctor element by means of a respective one Actuator a desired cross profile of the applied Medium is reached.
  • the actuators are mostly operated remotely or by hand, the Control of the actuators based on measured values from the Cross profile of the applied liquid or pasty medium is carried out via a control loop.
  • a pre-metering device for this purpose, for example uses a metering gap designed as a free jet nozzle, that between an inlet-side and outlet-side lip formed and in itself transverse to the direction of the web extending zones is divided, with each zone in generally an actuator is assigned so that the lip on the inlet side or the lip on the outlet side the length of the application is uniform or in zones different in their distance from the opposite lip is adjustable. It is also possible to use both lips to adjust at the same time.
  • the actuators mentioned are mostly remotely controlled or alternatively by hand press, the actuation of the actuators based on measured values of the cross profile of the applied liquid or pasty medium is carried out via a control loop.
  • a control loop Such an application is for example from DE-A-4432177 by the applicant and under the trade name "Jet Flow F" known.
  • the preliminary and final metering devices explained above are usually used in two common configurations, and on the one hand in an arrangement in which a so-called “spatially separated” preliminary and final dosing takes place and for another in an arrangement in which the preliminary and final dosing "not spatially separated” is executed.
  • the pre-dosing device is located a first counter roller and the final metering device on one second counter roll in the direction of the web seen after the first roller is connected.
  • a commissioned work with such a configuration is for example from the DE-A-3715307 known.
  • the arrangement is a preliminary and final metering device assigned common counter roller.
  • the present invention is therefore based on the object to create a suitable commissioned work with through a coordinated cross-profile setting from pre and final dosing device to simple and effective Way an exact setting of a desired one final cross profile and thus a high quality End product is achieved.
  • Another job is one suitable method for the regulated setting of a desired cross profile of one by means of such Applicator on a running material web, in particular from Paper or cardboard, applied liquid or pasty To create medium.
  • the first-mentioned task is solved by a Commissioned work according to the invention with the features of Claim 1 and another commissioned work according to the invention with the Features of claim 2.
  • the inventors of the present application have recognized that the size ratio of the respectively selected zone widths of the pre-metering device and the final metering device has a special influence on the achievable quality of the final cross profile of the applied liquid or pasty medium produced by the coordinated cross-profile setting of the pre-metering and final metering devices. Accordingly, in the application unit according to the invention, the respective zone widths of the zones of the pre-metering device and the final metering device which extend transversely to the running direction of the material web are essentially identical. In the second application work according to the invention, the zones are different from one another.
  • a zone is to be understood as a region of the pre-dosing or end-dosing device which is defined and extends transversely to the direction of travel of the material web and which is equipped with one or more actuators arranged in a predetermined arrangement pattern and which is relative to others by means of these actuators similarly designed areas for setting a specific transverse profile based on the web width of the material web is locally adjustable.
  • Zones extending transversely to the direction of travel of the material web is divided, for example, a physical separation between the individual zones, just like one segmented or comb-like doctor blade bed divided into zones Final metering.
  • Act the actuators one Final dosing device, however, directly on a corresponding designed, zone-wise adjustable doctor element, see above is used here in order to avoid the formation of grooves on the doctored order no physical separation of the zones available.
  • the zone-by-zone adjustment is then carried out by a elastic deformation of wall sections of the Doctor element. The latter variant is of course also adequate conceivable with a pre-metering device.
  • the application work according to the invention allows special proportions of the respective zone widths of the Pre and final dosing device and the achievable thereby targeted overlay of the respective locally varying Cross-section corrections of these facilities to one Total correction in a simple and effective way high profiling potential and an exact setting and Controllability of a desired final cross section and thus a high quality end product. moreover enables the solution according to the invention with which Final dosing device only relatively small local Having to make corrections to the cross section, causing a significantly less, locally different wear of the final metering doctor element (especially when used a doctor blade as a doctor element) and the Service life of the doctor element can be increased significantly. Finally, the excess amount of liquid or pasty application medium reducible.
  • the zones of the pre-metering device and the zones of the final metering device are offset from one another by such a predetermined amount in the width direction of the material web.
  • the amount corresponds to half of the identical zone widths of the preliminary and final metering device.
  • the amount corresponds to half of the respectively smaller of the zone widths which differ from one another of the preliminary and final metering device.
  • the zones of the pre-metering device comprise at least two zone types, the zone widths of which differ from one another. It is also provided according to the invention that the zones of the final metering device comprise at least two zone types, the zone widths of which differ from one another.
  • the two aforementioned variants can of course also be combined.
  • the mutual Distance of the adjustment points of the zones of the Actuators associated with the pre-metering device Division and by the mutual distance of the Adjustment points of the zones of the final dosing device assigned actuators formed division are identical. Is a respective zone of the preliminary and final dosing device only assigned to a single actuator, the corresponds to said identical division of the aforementioned identical Zone width of the preliminary and final dosing device. Are one or several zones of these facilities, however, several Actuators assigned, so the previously described identical division from the identical zone widths of the pre and final metering device may be different. Under a Adjustment point of an actuator is in the sense of the invention to understand the usually punctual area in which the Actuator attacks on the preliminary or final metering device.
  • the respective adjustment points are preferably located Predosing device and the final metering device in Direction of travel of the material web seen in direct succession.
  • Another preferred embodiment of the invention provides before that the pre-metering device and Final metering device have identical zone widths, however in contrast to one previously explained Embodiment by the mutual distance of the Adjustment points of the zones of the pre-metering device assigned actuators formed division and by the mutual distance of the adjustment points of the zones of the Actuators associated with the final metering device Division are different from each other. This measure too contributes to production depending on various parameters a desired final cross profile of the applied liquid or pasty medium.
  • this is preferably Adjustment points of the zones of the pre-metering device assigned actuators formed division an integer multiple of that of the mutual Distance of the adjustment points of the zones of the Actuators associated with the final metering device Division, or vice versa.
  • the invention provides that the Material web seen and related to the width direction of the Material web an integral multiple of each smaller division of the aforementioned divisions is congruent with the larger division.
  • zone widths of pre and Final dosing device can adjust the adjustment points of the respective Actuators of the pre-metering device within a Zone area in a certain uniform or irregular arrangement pattern can be arranged, the respective distance between at least two neighboring ones Adjustment points or actuators are not the same is.
  • assigned to the zones of the final metering device Actuators by their respective mutual distance Adjustment points form at least two divisions that are different from each other.
  • the running web of material is a preferred one Embodiment of the invention designed such that the Predosing device at least one laterally over one Edge zone extending beyond the edge of the running material web comprises, and / or the final metering device at least one sideways over an edge of the running material web extends beyond the peripheral zone.
  • the Predosing device at least one laterally over one Edge zone extending beyond the edge of the running material web comprises, and / or the final metering device at least one sideways over an edge of the running material web extends beyond the peripheral zone.
  • one Edge zone can also be a within the meaning of the invention partially act in the zone width zone, which protrudes laterally over the edge of the material web and on this way forms the corresponding edge zone.
  • the design feature is the zone width of the edge zone Predosing device preferably different from that Zone width of the remaining zones of the pre-metering device, and / or the zone width of the edge zone of the Final dosing device different from the zone width of the remaining zones of the final metering device.
  • Edge zone widths of the preliminary and final dosing device are the same or can be different.
  • Edge zone width of the downstream of the pre-metering device Final dosing device from the edge zone width of the Differentiate pre-metering device because of the order of the liquid or pasty medium by means of Predosing device an expansion or swelling of the Material web occurs in the width direction, which is already as it passes through the coated web of material downstream final metering device makes noticeable.
  • This one too coordinated arrangement of the edge zone actuators the respective facility may have an extension the current coated by the pre-metering device Material web to be taken into account, so that if necessary low Deviation from the aforementioned position information is necessary could be.
  • the application work according to the invention comprises in another preferred embodiment expediently at least one Control device, the pre-metering device and Final dosing device in a coordinated Control loop of this control device are integrated. This allowed while the application is running a quick and reliable adjustment to changing Operating conditions.
  • the object underlying the invention is further solved by an inventive method for regulated Setting a desired cross profile using a Applicator according to one of claims 1 to 23 directly a running material web, in particular made of paper or Cardboard, applied liquid or pasty medium, where the method comprises the features of claim 24. Accordingly, is used to set the desired cross profile if necessary both a first cross profile correction by adjusting the Actuators of the pre-metering device as well as a second one Cross-section correction of the final control device actuators made, the first and second Cross-section correction in its effect to a required Complete the overall correction of the cross profile.
  • the method according to the invention already provides the context with the application mentioned advantages.
  • Adjusting the actuators of the front and Final dispenser can be in line with the inventive method both sequentially and in essentially done synchronously.
  • both the pre and the Final dosing device can be adjusted by hand.
  • both the two furnishings by hand and the other one via the control loop or both devices via one mutually independent or coordinated regulation one note.
  • the commission includes one Counter roll 2, on the one to be provided with an order Material web 4 runs, which during the application process of the Counter roll 2 is supported.
  • the direction of rotation of the counter roller 2 and thus the running direction of the material web 4 is in the Figure marked by an arrow.
  • the counter-roller 2 is opposite.
  • the bar the pre-metering device V contains a distribution pipe for the liquid or to be applied to the running material web 4 pasty medium, hereinafter referred to as coating medium referred to as.
  • the inlet-side lip 2 of the pre-metering device V is divided into a plurality of adjustable zones, which extend transversely to the direction of travel of the material web 4, for setting both a longitudinal and a transverse profile of the liquid or pasty coating medium to be applied, with one or more actuators 14 v being assigned to each zone is.
  • the lip 8 on the inlet side can be profiled by the actuators 14 v both uniformly over substantially their entire longitudinal extent and, if necessary, different zones.
  • the precise configuration of the zones of the pre-metering device V will be discussed in more detail below.
  • the pre-metering device V is followed by a final metering device E, viewed in the direction of travel of the material web 4.
  • the final metering device E comprises a support bar (not shown) and a doctor element held in a doctor element holder fastened to the support bar in the form of a continuous doctor blade 16 which extends essentially over the entire web width and with which the coating medium 12 previously applied to the material web 4 by means of the pre-metering device V is used Setting a desired cross profile is doctored off.
  • the final metering device E ie more precisely the doctor blade 16 in the present case, is divided into a plurality of adjustable zones extending transversely to the running direction of the material web 4, each zone preferably being assigned one or more actuators 14 e .
  • the zones of the doctor blade 16 are to be understood in the present case as regions of a defined size extending transversely to the direction of travel of the material web 4, which are adjusted by the actuators 14 e compared to other regions of the doctor blade 16 of similar design for setting a specific transverse profile in relation to the web width of the material web 4 are locally adjustable. This adjustability is ensured by the reversible deformability of the doctor blade 16. There is therefore no physical separation of the zones of the doctor blade 16, as is the case by parting lines or the like.
  • the actuators 14v and 14e of the front and Final dosing devices are expediently in one Control loop of at least one, not shown Control device integrated, so that during operation of the Commissioned and depending on various, the cross profile influencing parameters if necessary a fast and reliable correction of the cross profile can be made can.
  • FIG. 2 shows a schematic cross-sectional illustration a second basic configuration for the invention Commissioned.
  • the basic configuration of this configuration corresponds essentially to that of FIG. 1, but in In contrast, the commissioned work for a "spatially separated" Pre and final dosing designed. That is, the Predosing device V is a first counter roll 2.1 and the final metering device E of a second counter roll 2.2 assigned, seen in the running direction of the material web 4 the first counter-roller 2.1 is connected.
  • FIG. 3 shows a schematic plan view of the zones Z v of the pre-metering device V and zones Z e of the final metering device E of a first embodiment of the application unit according to the invention, shown in a common representation level for purposes of illustration.
  • the respective zones Z v and Z e of the pre-metering device V and final metering device E are indicated in simplified form as rectangular boxes.
  • the respective zones Z v and Z e extend transversely to the running direction of the material web 4 over its substantially entire width B, the respective zone widths b v of the pre-metering device V and the respective zone widths b e of the final metering device E being identical , As further indicated in FIG.
  • both the pre-metering device V and the final metering device E comprise edge zones Z vr and Z er extending laterally beyond a respective side edge of the running material web 4.
  • the zone width b vr of the edge zone Z vr of the pre-metering device V is different in the present example from the zone width b v of the other Z v of the pre-metering device V.
  • the zone width b er of the edge zones Z er of the end metering device E is different from the zone width b e of the other zones Z e of the end metering device E.
  • the edge zone width b er of the end metering device E is different from the edge zone width b vr of the pre-metering device V by one by Application of the liquid or pasty coating medium and expansion ⁇ B or swelling of the material web that occurs after the material web has passed through the pre-metering device V in the web width direction.
  • edge zones Z vr and Z er explained above can in principle also have the same width as the respective other zones Z v or Z e of the preliminary and final metering device. This is the case, for example, when an edge zone Z vr or Z er is formed by a zone Z v or Z e of the preliminary and final metering device which projects beyond the edge of the material web.
  • adjustment points P v of the actuators 14 v of the pre-metering device V are shown as crosses and the adjustment points P e of the actuators 14 e of the final metering device E are shown in simplified form as circles.
  • an adjustment point of an actuator is to be understood as the generally punctiform area in which the actuator intervenes on the preliminary or final metering device E.
  • Actuators formed Te division identical and seen in the direction of the web of material 4 are also directly behind each other.
  • the adjustment points of the edge zones Z vr of the pre-metering device V and the adjustment points of the edge zones Z he of the final metering device E, seen in the running direction of the material web 4 are essentially directly behind one another.
  • the position of the adjustment points of the edge zones Z vr and Z he related to the width direction of the material web 4 can, however, differ slightly in order to take into account any extensions ⁇ B of the material web that may occur in the web width direction.
  • FIG. 4 shows a second embodiment of the applicator according to the invention, which corresponds essentially to the variant according to FIG. 3, in which the zones Z v and Z e are directly behind one another as seen in the running direction of the material web without lateral offset.
  • the respective zones Z v of the pre-metering device V and the respective zones Z e of the final metering device E are assigned two actuators. Accordingly exist per zone Z v two adjustment points P v and per zone Z e two adjustment points P e, when viewed in the running direction of the material web are located directly one behind the other.
  • FIG. 5 shows a third embodiment of the application unit according to the invention, in which the zones Z v and Z e , viewed in the direction of travel of the material web, are in turn directly behind one another, but due to the mutual spacing of the adjustment points P v of the zones Z v of the pre-metering device V assigned actuators division T v and the division T e formed by the mutual spacing of the adjustment points P e of the actuators assigned to the zones Z e of the final metering device E are different from each other.
  • T e 2 * T v .
  • FIG. 6 shows a fourth embodiment, in which the zones Z v and Z e, seen in the direction of travel of the material web, lie directly one behind the other without lateral offset, and the actuators assigned to the zones Z e of the final metering device E, however, by their respective mutual spacing of their adjustment points P e form two divisions T e1 and T e2 , which are different from each other.
  • every fourth adjustment point P e of the final metering device E viewed in the direction of travel of the material web, lies directly behind an adjustment point P v of the pre-metering device V.
  • FIG. 7 shows a fifth embodiment of the application unit according to the invention in a representation analogous to FIG. 3.
  • the zones Z v of the pre-metering device V and the zones Z e of the final metering device E are offset by a predetermined amount x in the width direction of the material web when viewed in the running direction of the material web.
  • This amount x preferably corresponds to half of the respectively identical zone widths b v and b e of the preliminary and final metering device.
  • the same graduations T v and T e formed by the respective adjustment points of the preliminary and final metering device are not congruent when viewed in the running direction of the material web. The same applies to the adjustment points.
  • FIG. 8 shows a sixth embodiment of the application unit according to the invention, which corresponds essentially to the variant according to FIG.
  • the respective adjustment points of the pre-metering device V and the final metering device E lie directly one behind the other.
  • FIG. 9 shows a seventh embodiment essentially corresponding to the variant according to FIG. 8, in which the respective adjustment points of the pre-metering device V and the final metering device E are offset relative to one another in the direction of travel of the material web by such a predetermined amount y in the width direction of the material web, which corresponds to half of the identical divisions T v and T e .
  • FIG. 10 shows an eighth embodiment of the application unit according to the invention, in which the zones of the pre-metering device V and the zones of the final metering device E are in turn offset by a predetermined amount x and the division T e is an integral multiple of the division T v .
  • T e 2 * T v .
  • FIG. 11 shows a ninth embodiment of the application unit according to the variant which corresponds essentially to the variant according to FIG. 10, but here the number and arrangement of the adjustment points of the preliminary and final metering device are exactly interchanged compared to FIG. 9, the division T v now being an integer Is a multiple of the division T e .
  • FIG. 12 shows a tenth embodiment of the application unit according to the invention, which corresponds essentially to the variant according to FIG. 10.
  • the offset x of the zones of the pre-metering device V and the final metering device E lying in the width direction of the material web and the number and position of the respective adjustment points are selected such that, viewed in the direction of travel of the material web, and in relation to the width direction of the material web, an integral multiple of the smaller division T v is congruent with the larger division T e .
  • the individual adjustment point P e of a respective zone of the final metering device E is also directly behind the first of the two adjustment points P v of a respective zone of the pre-metering device V.
  • the pre-metering device V has two divisions T v1 and T v2 , which are different from one another, and the final metering device E also has different divisions T e1 and T e2 .
  • the division T v2 of the pre-metering device V results from a distance of two adjacent adjustment points located at the edge regions of a zone Z v
  • the division T v1 results from a uniform mutual distance between the adjustment points within the zone Z v .
  • FIG. 14 shows a schematic plan view of the zones Z v of the pre-metering device V and zones Z e of the final metering device E of a first embodiment of the second application unit according to the invention, shown in a common display plane for purposes of illustration.
  • the respective zones Z v and Z e of the pre-metering device V and final metering device E are indicated in simplified form as rectangular boxes.
  • the respective zones Z v and Z e extend transversely to the running direction of the material web 4 over its substantially entire width B, the respective zone widths b v of the pre-metering device V and the respective zone widths b e of the final metering device E being different from one another are.
  • the width of a zone Z v of the pre-metering device V is twice the width of a zone Z e of the final metering device.
  • the zones Z v and Z e of different widths lie directly one behind the other in the direction of travel of the material web 4 without any lateral offset.
  • the number of the respective zones Z v and Z e and their respective zone widths b v and b e differ depending on the application, so that the manner of representation in the drawings is only explanatory.
  • both the pre-metering device V and the final metering device E comprise edge zones Z vr and Z er extending laterally beyond a respective side edge of the running material web 4.
  • the zone width b vr of the edge zone Z vr of the pre-metering device V is different in the present example from the zone width b v of the other Z v of the pre-metering device V.
  • the zone width b er of the edge zones Z er of the end metering device E is different from the zone width b e of the other zones Z e of the end metering device E.
  • the edge zone width b er of the end metering device E is different from the edge zone width b vr of the pre-metering device V by one by Application of the liquid or pasty coating medium and expansion ⁇ B or swelling of the material web that occurs after the material web has passed through the pre-metering device V in the web width direction.
  • edge zones Z vr and Z er explained above can in principle also have the same width as the respective other zones Z v or Z e of the preliminary and final metering device. This is the case, for example, when an edge zone Z vr or Z er is formed by a zone Z v or Z e of the preliminary and final metering device which projects beyond the edge of the material web.
  • adjustment points P v of the actuators 14 v of the pre-metering device V are shown as crosses and the adjustment points P e of the actuators 14 e of the final metering device E are shown in simplified form as circles.
  • an adjustment point of an actuator is to be understood as the generally punctiform area in which the actuator intervenes on the preliminary or final metering device E.
  • the respective zones Z v of the pre-metering device V are assigned two actuators and the respective zones Z e of the final metering device E are assigned an actuator. Accordingly, two adjustment points P Z and v per zone Z e is an adjusting point P e v exist per zone.
  • the adjustment points of the edge zones Z vr of the pre-metering device V and the adjustment points of the edge zones Z he of the final metering device E, seen in the running direction of the material web 4 are essentially directly behind one another.
  • the position of the adjustment points of the edge zones Z vr and Z he related to the width direction of the material web 4 can, however, differ slightly in order to take into account any extensions ⁇ B of the material web that may occur in the web width direction.
  • each of the 14 shows corresponding views, the material web 4 not shown for the sake of clarity.
  • FIG. 15 shows a second embodiment of the second applicator according to the invention, which corresponds essentially to the variant according to FIG. 14, but here the number and arrangement of the adjustment points of the preliminary and final metering device are exactly reversed compared to FIG. 14.
  • the zone width b e of the zones Z e of the final metering device E is also greater than the zone width b v of the zones Z v of the pre-metering device V.
  • FIG. 16 shows, in a representation analogous to FIG. 14, a third embodiment of the second application unit according to the invention, in which the zones Z v and Z e , which each have only one adjustment point in the case of different zone widths, are each seen in the running direction of the material web without lateral offset lie directly one behind the other, and the pitch T v formed by the mutual spacing of the adjustment points P v of the actuators assigned to the zones Z v of the predosing device V and the pitch formed by the mutual spacing of the adjusting points P e of the actuators assigned to the zones Z e of the final metering device E.
  • T e are different from each other.
  • the division T v is an integer multiple of the division T e .
  • T v 2 * T e .
  • Fig. 17 shows a fourth embodiment of the second applicator according to the invention, in which the zones Z v and Z e of different widths, viewed in the direction of travel of the material web, lie directly one behind the other without lateral offset, the actuators assigned to the zones Z e of the final metering device E by their respective mutual spacing However, their adjustment points P e form two divisions T e1 and T e2 , which are different from one another.
  • the final metering device E comprises zones to which either one or two adjusting points are assigned, there are both adjusting point P e of the final metering device E in this configuration, which, viewed in the direction of travel of the material web, lie directly behind an adjusting point P v of the pre-metering device V, as well as adjusting points P e , which are offset from adjustment points P v of the pre-metering device V in the running direction of the material web by a predetermined amount Y in the width direction of the material web.
  • the actuators assigned to the zones Z v of the pre-metering device V form at least two divisions which are different from one another due to their respective mutual spacing of their adjustment points.
  • FIG. 18 shows a fifth embodiment of the second application unit according to the invention in a representation analogous to FIG. 14.
  • the zones Z v and zones Z e of the preliminary and final metering devices which are of different widths, are offset by a predetermined amount x in the width direction of the material web when viewed in the running direction of the material web.
  • this amount x corresponds to half the zone width b v of the zones Z v of the pre-metering device V, which is smaller than the zone width b e of the zones Z e of the final metering device E.
  • FIG. 19 shows a sixth embodiment of the second application unit according to the invention, which corresponds essentially to the variant according to FIG. 18.
  • Each zone of the preliminary and final metering device is assigned an adjustment point and the offset x in the width direction of the material web of the zones of different widths of the pre-metering device V and the final metering device E and the number and position of the respective adjusting points are chosen so that the material web is viewed in the running direction and based on the width direction of the material web, an integral multiple of the smaller pitch T v is congruent with the larger pitch T e .
  • T e 2 * T v .
  • an adjustment point P e of the final metering device E lies directly behind a first or third adjustment point P v of the pre-metering device V.
  • FIG. 20 shows a seventh embodiment of the second application unit according to the invention in a representation analogous to FIG. 14.
  • the special feature of this variant is that not only are the zone widths of the zones of the preliminary and final metering devices different from one another, but also the respective zones of the pre-metering device V comprise two different zone types Z v1 , Z v2 , whose zone widths b v1 , b v2 differ from one another are.
  • the zones of the final metering device E also comprise at least two different zone types Z e1 , Z e2 , whose zone widths b e1 , b e2 are different from one another.
  • the zones Z v1 , Z v2 and Z e1 , Z e2 of the preliminary and final metering device are also offset from one another in the width direction of the material web in this exemplary embodiment.
  • the respective zone widths b v1 , b v2 , b e1 , b e2 and the number and arrangement of the adjustment points P v , P e of the preliminary and final metering device are selected such that the adjustment points P e and P v are seen directly in succession in the direction of travel of the material web lie.
  • both a first cross profile correction by adjusting the actuators 14 v of the pre-metering device V and a second cross profile correction are required by adjusting the actuators of the final metering device E, the effect of the first and second profile corrections being complementary to a required overall correction of the cross profile.
  • a long-wave correction of the cross profile is preferably carried out by regulated adjustment of the actuators 14 v of the pre-metering device V and a short-wave correction of the deviations of the cross profile by controlled adjustment of the actuators 14 e of the final metering device E.
  • a short-wave correction of the cross profile by controlled adjustment of the actuators 14 v of the pre-metering device and a long-wave correction of the deviation of the cross profile by controlled adjustment of the actuators 14 e of the final metering device E If predominantly long-wave profile components are to be corrected with the actuators 14 v of the pre-metering device V, fewer actuators 14 v can usually be used than actuators 14 e .
  • the actuators 14 v and 14 e of the preliminary and final metering device are integrated in a control circuit, not shown in the figures. The actuators 14 v and 14 e can be adjusted in succession or essentially simultaneously.
  • the invention is not limited to the above exemplary embodiments, which only serve to explain the basic idea of the invention in general.
  • the application work according to the invention can rather also take embodiments other than those described above.
  • the application can have features that represent a combination of the respective individual features of the claims. Configurations are also possible which essentially correspond to the embodiments shown in the figures, although the number and position of the respective adjustment points of the preliminary and final metering device, as is the case in FIGS. 9 and 10, is exactly interchanged.
  • the divisions T v and Te explained above can of course also be a non-integer multiple of the other division T e or T v instead of an integer multiple.
  • one or more adjustment points of the final metering device seen in the direction of travel of the material web, can lie directly behind one or more adjustment points of the pre-metering device and / or multiples of the respectively smaller of the mentioned divisions in the direction of travel of the material web can be congruent with the respectively larger of these divisions.

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Claims (28)

  1. Dispositif d'enduction pour l'application directe d'une substance fluide ou pâteuse (12) sur une bande de matière (4) en mouvement, en particulier en papier ou en carton, comprenant
    au moins un équipement de prédosage (V) équipé de vérins (14v) pour le réglage d'un profil transversal, subdivisé en une pluralité de zones (Zv) s'étendant transversalement à la direction de défilement de la bande de matière (4) et pouvant être profilé par zones au moyen des vérins (14v), dans lequel au moins un vérin (14v) est associé à chaque zone (Zv), ainsi que
    au moins un équipement de dosage final (E) disposé après l'équipement de prédosage (V) dans le sens de défilement de la bande de matière (4), également équipé de vérins (14e), subdivisé en une pluralité de zones (Ze) s'étendant transversalement à la direction de défilement de la bande de matière (4) et pouvant être profilé par zones au moyen des vérins (14e) pour le réglage d'un profil transversal, dans lequel au moins un vérin (14e) est associé à chaque zone (Ze), dans lequel
    des largeurs de zones respectives (bv, be) de l'équipement de prédosage (V) et de l'équipement de dosage final (E) sont identiques.
  2. Dispositif d'enduction pour l'application directe d'une substance fluide ou pâteuse (12) sur une bande de matière (4) en mouvement, en particulier en papier ou en carton, comprenant
    au moins un équipement de prédosage (V) équipé de vérins (14v) pour le réglage d'un profil transversal, subdivisé en une pluralité de zones (Zv) s'étendant transversalement à la direction de défilement de la bande de matière (4) et pouvant être profilé par zones au moyen des vérins (14v), dans lequel au moins un vérin (14v) est associé à chaque zone (Zv), ainsi que
    au moins un équipement de dosage final (E) disposé après l'équipement de prédosage (V) dans le sens de défilement de la bande de matière (4), également équipé de vérins (14e), subdivisé en une pluralité de zones (Ze) s'étendant transversalement à la direction de défilement de la bande de matière (4) et pouvant être profilé par zones au moyen des vérins (14e) pour le réglage d'un profil transversal, dans lequel au moins un vérin. (14e) est associé à chaque zone (Ze), dans lequel des largeurs de zones respectives (bv, be) de l'équipement de prédosage (V) et de l'équipement de dosage final (E) sont différentes l'une de l'autre.
  3. Dispositif d'enduction suivant la revendication 1 ou 2, caractérisé en ce que les zones (Zv) et (Ze) sont situées directement l'une derrière l'autre en regardant dans le sens de défilement de la bande de matière (4).
  4. Dispositif d'enduction suivant la revendication 1 ou 2, caractérisé en ce que les zones (Zv) et (Ze) sont déportées l'une par rapport à l'autre d'une distance prédéterminée (x) dans le sens de la largeur (B) de la bande de matière (4), en regardant dans le sens de défilement de la bande de matière (4).
  5. Dispositif d'enduction suivant les revendications 1 et 4, caractérisé en ce que les zones (Zv) et (Ze) sont déportées l'une par rapport à l'autre, dans le sens de la largeur (B) de la bande de matière (4), d'une distance prédéterminée (x) qui correspond à la moitié des largeurs de zones chaque fois identiques (bv, be), en regardant dans le sens de défilement de la bande de matière (4).
  6. Dispositif d'enduction suivant la revendication 1 ainsi que suivant l'une quelconque des revendications 3 à 5, caractérisé en ce que le pas (Tv) formé par la distance relative des points de réglage (Pv) des vérins (14v) associés aux zones (Zv) de l'équipement de prédosage (V) et le pas (Te) formé par la distance relative des points de réglage (Pe) des vérins (14e) associés aux zones (Ze) de l'équipement de dosage final (E) sont identiques.
  7. Dispositif d'enduction suivant les revendications 2 et 4, caractérisé en ce que les zones (Zv) et (Ze) sont déportées l'une par rapport à l'autre, dans le sens de la largeur (B) de la bande de matière (4), d'une distance prédéterminée (x) qui correspond à la moitié de chaque plus petite des largeurs des zones différentes l'une de l'autre (bv, be), en regardant dans le sens de défilement de la bande de matière (4).
  8. Dispositif d'enduction suivant la revendication 2 ainsi que suivant l'une quelconque des revendications 3, 4 ou 7, caractérisé en ce que les zones de l'équipement de prédosage (V) comprennent au moins deux types de zones (Zv1, Zv2), dont les largeurs de zones (bv1, bv2) sont différentes l'une de l'autre.
  9. Dispositif d'enduction suivant la revendication 2 ainsi que suivant l'une quelconque des revendications 3, 4, 7 ou 8, caractérisé en ce que les zones de l'équipement de dosage final (E) comprennent au moins deux types de zones (Ze1, Ze2), dont les largeurs de zones (be1, be2) sont différentes l'une de l'autre.
  10. Dispositif d'enduction suivant la revendication 2 ainsi que suivant l'une quelconque des revendications 3, 4, 7, 8 ou 9, caractérisé en ce que le pas (Tv) formé par la distance relative des points de réglage (Pv) des vérins (14v) associés aux zones (Zv) de l'équipement de prédosage (V) et le pas (Te) formé par la distance relative des points de réglage (Pe) des vérins (14e) associés aux zones (Ze) de l'équipement de dosage final (E) sont différents l'un de l'autre.
  11. Dispositif d'enduction suivant les revendications 1 et 6 ou 2 et 10, caractérisé en ce que les points de réglage respectifs (Pv, Pe) de l'équipement de prédosage (V) et de l'équipement de dosage final (E) sont situés directement l'un derrière l'autre, en regardant dans le sens de défilement de la bande de matière (4).
  12. Dispositif d'enduction suivant les revendications 1 et 6 ou 2 et 10, caractérisé en ce que les points de réglage respectifs (Pv, Pe) de l'équipement de prédosage (V) et de l'équipement de dosage final (E) sont déportés l'un par rapport à l'autre d'une distance prédéterminée (y), dans le sens de la largeur (B) de la bande de matière (4), en regardant dans le sens de défilement de la bande de matière (4).
  13. Dispositif d'enduction suivant les revendications 1 ou 2 et 12, caractérisé en ce que les points de réglage respectifs (Pv, Pe) de l'équipement de prédosage (V) et de l'équipement de dosage final (E) sont déportés l'un par rapport à l'autre, dans le sens de la largeur (B) de la bande de matière (4), d'une distance prédéterminée (y) qui correspond à la moitié des pas chaque fois identiques (Tv, Te), en regardant dans le sens de défilement de la bande de matière (4).
  14. Dispositif d'enduction suivant une ou plusieurs des revendications précédentes, caractérisé en ce que le pas (Tv) formé par la distance relative des points de réglage (Pv) des vérins (14v) associés aux zones (Zv) de l'équipement de prédosage (V) et le pas (Te) formé par la distance relative des points de réglage (Pe) des vérins (14e) associés aux zones (Ze) de l'équipement de dosage final (E) sont différents l'un de l'autre.
  15. Dispositif d'enduction suivant la revendication 14, caractérisé en ce que le pas (Tv) est un multiple entier du pas (Te) ou inversement.
  16. Dispositif d'enduction suivant la revendication 14 ou 15, caractérisé en ce que, en regardant dans le sens de défilement de la bande de matière (4) et par rapport au sens de la largeur (B) de la bande de matière (4), un multiple entier du pas (Tv) ou (Te) respectivement le plus petit couvre exactement le pas (Te) ou (Tv) respectivement le plus grand.
  17. Dispositif d'enduction suivant la revendication 14 ou 15, caractérisé en ce que, en regardant dans le sens de défilement de la bande de matière (4) et par rapport au sens de la largeur (B) de la bande de matière (4), un multiple entier du pas (Tv) ou (Te) respectivement le plus petit ne couvre pas exactement le pas (Te) ou (Tv) respectivement le plus grand.
  18. Dispositif d'enduction suivant une ou plusieurs des revendications précédentes, caractérisé en ce que les vérins (14v) associés aux zones (Zv) de l'équipement de prédosage (V) forment, par la distance relative respective de leurs points de réglage (Pv), au moins deux pas (Tv1) et (Tv2), qui sont différents l'un de l'autre.
  19. Dispositif d'enduction suivant une ou plusieurs des revendications précédentes, caractérisé en ce que les vérins (14e) associés aux zones (Ze) de l'équipement de dosage final (E) forment, par la distance relative respective de leurs points de réglage (Pe), au moins deux pas (Te1) et (Te2), qui sont différents l'un de l'autre.
  20. Dispositif d'enduction suivant une ou plusieurs des revendications précédentes, caractérisé en ce que
    l'équipement de prédosage (V) comprend au moins une zone de bord (Zvr) s'étendant latéralement au-delà d'un bord de la bande de matière (4) en mouvement,
    et/ou
    l'équipement de dosage final (E) comprend au moins une zone de bord (Zer) s'étendant latéralement au-delà d'un bord de la bande de matière (4) en mouvement.
  21. Dispositif d'enduction suivant la revendication 20, caractérisé en ce que
    la largeur de zone (bvr) de la zone de bord (Zvr) de l'équipement de prédosage (V) est différente de la largeur de zone (bv) des autres zones (Zv) de l'équipement de prédosage (V),
    et/ou
    la largeur de zone (ber) de la zone de bord (Zer) de l'équipement de dosage final (E) est différente de la largeur de zone (be) des autres zones (Ze) de l'équipement de dosage final (E).
  22. Dispositif d'enduction suivant la revendication 10 ou 21, caractérisé en ce que les points de réglage (Pv, Pe) d'au moins un vérin (14v) associé à la zone de bord (Zvr) de l'équipement de prédosage (V) et d'au moins un vérin (14e) associé à la zone de bord (Zer) de l'équipement de dosage final (E) sont situés sensiblement directement l'un derrière l'autre, en regardant dans le sens de défilement de la bande de matière (4).
  23. Dispositif d'enduction suivant une ou plusieurs des revendications précédentes, caractérisé en ce que celui-ci comporte en outre au moins un dispositif de régulation, l'équipement de prédosage (V) et l'équipement de dosage final (E) étant inclus dans un circuit de régulation accordé l'un à l'autre de ce dispositif de régulation.
  24. Procédé pour la régulation du réglage d'un profil transversal désiré d'une substance liquide ou pâteuse (12) appliquée directement sur une bande de matière (4) en mouvement, en particulier en papier ou en carton, au moyen d'un dispositif d'enduction suivant l'une quelconque des revendications 1 à 18, dans lequel, pour le réglage du profil transversal désiré, on procède au besoin aussi bien à une première correction du profil transversal par a justement des vérins (14v) de l'équipement de prédosage (V) qu'à une seconde correction du profil transversal par ajustement des vérins (14e) de l'équipement de dosage final (E), la première et la seconde correction du profil transversal combinant leurs effets pour effectuer une correction totale nécessaire du profil transversal.
  25. Procédé suivant la revendication 24, caractérisé par
    une correction de grande longueur d'onde du profil transversal par un ajustement régulé des vérins (14v) de l'équipement de prédosage (V), et
    une correction de courte longueur d'onde des écarts du profil transversal par un ajustement régulé des vérins (14v) de l'équipement de dosage final (E).
  26. Procédé suivant la revendication 24, caractérisé par
    une correction de courte longueur d'onde du profil transversal par un ajustement régulé des vérins (14v) de l'équipement de prédosage (V), et
    une correction de grande longueur d'onde des écarts du profil transversal par un ajustement régulé des vérins (14e) de l'équipement de dosage final (E).
  27. Procédé suivant l'une quelconque des revendications 24 à 26, caractérisé en ce que l'on procède à
    un ajustement grossier du profil transversal au moyen de l'équipement de prédosage (V), et à
    un ajustement fin du profil transversal au moyen de l'équipement de dosage final (E).
  28. Procédé suivant l'une quelconque des revendications 24 à 26, caractérisé en ce que l'on procède à
    un ajustement grossier du profil transversal au moyen de l'équipement de dosage final (E), et à
    un ajustement fin du profil transversal au moyen de l'équipement de prédosage (V).
EP97109654A 1996-07-08 1997-06-13 Dispositif pour l'application directe d'une substance fluide ou pâteuse sur une bande en mouvement, particulièrement de papier ou carton Expired - Lifetime EP0821102B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19627470 1996-07-08
DE1996127470 DE19627470A1 (de) 1996-07-08 1996-07-08 Auftragwerk zum direkten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE19627489 1996-07-08
DE1996127489 DE19627489A1 (de) 1996-07-08 1996-07-08 Auftragwerk zum direkten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton

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Publication Number Publication Date
EP0821102A2 EP0821102A2 (fr) 1998-01-28
EP0821102A3 EP0821102A3 (fr) 1999-07-07
EP0821102B1 true EP0821102B1 (fr) 2002-03-27

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US (1) US6022591A (fr)
EP (1) EP0821102B1 (fr)
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US8545574B2 (en) * 2003-06-17 2013-10-01 The Procter & Gamble Company Methods for treating fibrous structures
SE529074C2 (sv) * 2005-06-08 2007-04-24 Abb Ab Förfarande och anordning för optimering av planhetsstyrning vid valsning av ett band
CN107109800B (zh) * 2014-11-18 2019-07-05 K·O·拉赫托宁 润滑剂施加器以及润滑背辊的方法和装置

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US4245582A (en) * 1979-02-02 1981-01-20 Beloit Corporation Adjustable rod holder for metering rod coaters
CH663362A5 (de) * 1984-01-07 1987-12-15 Jagenberg Ag Vorrichtung zum beschichten von ueber eine stuetzwalze laufenden materialbahnen mit regelbarer auftragsstaerke.
AT396437B (de) * 1986-10-25 1993-09-27 Voith Gmbh J M Vordosiereinrichtung in einer streichanlage
DE3715307C2 (de) * 1987-05-08 1995-07-20 Voith Gmbh J M Auftragswerk zur Beschichtung laufender Warenbahnen
DE3729621A1 (de) * 1987-09-04 1989-03-16 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
ATE85904T1 (de) * 1987-10-10 1993-03-15 Johannes Zimmer Auftragungsvorrichtung.
DE3927329A1 (de) * 1989-08-18 1991-02-21 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
FI91025C (fi) * 1991-02-08 1995-08-22 Valmet Paper Machinery Inc Menetelmä paperin tai muun rainamateriaalin päällystemäärän poikkiprofiilin säätämiseksi ja menetelmän toteuttamiseen tarkoitettu päällystysasema
DE4124988C2 (de) * 1991-07-27 1995-06-22 Voith Gmbh J M Streicheinrichtung mit Klingennachstellung
DE4432177A1 (de) * 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
EP0701022B1 (fr) * 1994-09-09 2001-04-04 Voith Paper Patent GmbH Appareil d'enduction pour déposer directement ou indirectement un matériau fluide ou pâteux sur une bande en mouvement

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DE59706731D1 (de) 2002-05-02
EP0821102A2 (fr) 1998-01-28
US6022591A (en) 2000-02-08
JPH1066915A (ja) 1998-03-10
EP0821102A3 (fr) 1999-07-07

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