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EP0109520B1 - Dispositif pour l'enduction d'une bande de matériau mobile - Google Patents

Dispositif pour l'enduction d'une bande de matériau mobile Download PDF

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Publication number
EP0109520B1
EP0109520B1 EP83109878A EP83109878A EP0109520B1 EP 0109520 B1 EP0109520 B1 EP 0109520B1 EP 83109878 A EP83109878 A EP 83109878A EP 83109878 A EP83109878 A EP 83109878A EP 0109520 B1 EP0109520 B1 EP 0109520B1
Authority
EP
European Patent Office
Prior art keywords
ductor
strip
face
bed
coated
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
Application number
EP83109878A
Other languages
German (de)
English (en)
Other versions
EP0109520A1 (fr
Inventor
Herbert Sommer
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.)
Jagenberg AG
Original Assignee
Jagenberg AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jagenberg AG filed Critical Jagenberg AG
Priority to AT83109878T priority Critical patent/ATE31151T1/de
Publication of EP0109520A1 publication Critical patent/EP0109520A1/fr
Application granted granted Critical
Publication of EP0109520B1 publication Critical patent/EP0109520B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/08—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by scraping
    • 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
    • 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
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work

Definitions

  • the invention relates to a device for coating running webs of material with adjustable application thickness with the aid of a doctor bar which rests against the coated side of the web of material, which is mounted in a rigidly designed doctor bed and is pressed elastically with adjustable pressure against the web of material to be coated, uniformly over the application width, whereby the face of the squeegee bar facing the web to be coated, which has a rectangular outline, forms a narrowing application gap with the web, the geometry of which is independent of the contact pressure and the top edge of the end face forms a straight-line and sharp-edged tear-off edge.
  • the doctor rod is designed as a roller doctor rod and is mounted in an elastic doctor bed.
  • a pressure medium for example a pressure hose loaded with compressed air, is provided between the doctor blade bed and the machine frame and presses the roller doctor rod against the material web to be coated with variable pressure in order to regulate the application thickness of the coating and thus to meter the coating medium.
  • the doctor blade rod results in a narrowing application gap of constant geometry for the coating medium. however, there is also a widening gap on the outlet side, which can lead to surface roughness in the coating.
  • DE-A-1 652 280 discloses a device of the type mentioned above, in which the outside of a material web guided over a support roller is connected to the open side of a coating chamber, this coating chamber on the web feed side and on the opposite side Each side has a rigid sealing blade or scraper blade. These blades can be adjusted independently of one another in that the coating chamber can be inclined in the web running direction by means of adjustable stops arranged on the frame. With such a device, a different coating thickness can be achieved by presetting the stops from coating process to coating process, but it is not possible to compensate for variations in web thickness or web profile in order to achieve a coating thickness that is as uniform as possible on the entire material web.
  • the invention has for its object to provide a device of the type described above, with which a sensitive change of the application weight with the highest coating quality is made possible with simple means.
  • the squeegee with low friction is fed to at least one flat sliding surface of the squeegee bed arranged in the web running direction and is designed to be flexible in the area of the end face and tear-off edge and that the pressure medium is also designed to be elastic and arranged between the squeegee bar and the squeegee bed is.
  • the squeegee strip which is guided with little friction in the squeegee bed, permits extremely sensitive regulation of the application weight of the coating, the elastic pressure medium acting directly on the squeegee iron, which is flexible in the area of its end face. This results in an extremely uniform coating of the material web.
  • a hydrodynamic pressure is built up in the application gap (wedge gap) between the geometrically stable end face of the squeegee strip, which leads to an equilibrium state with the pressure in the elastic pressure medium.
  • the sharp-edged tear-off edge on the trailing edge of the end face of the squeegee strip ensures a high smoothing value, while the formation of the end face with great wear resistance, u. a.
  • the inventive design and arrangement of the squeegee strip also means that additional devices for adapting the profile of the squeegee strip to irregularities in the support roller over which the material web runs and the material web itself along the coating width become superfluous.
  • the doctor bar can be guided with low friction between parallel sliding surfaces of the doctor bed.
  • the coefficient of friction between the squeegee strip and the squeegee bed is advantageously approximately ⁇ 0,1 0.1.
  • the friction of the squeegee bar against the squeegee holder is negligibly small compared to the contact pressure of the squeegee bar against the coated web.
  • the squeegee or squeegee bed is expediently made of steel, stainless steel or coated aluminum at least in the area of the sliding surfaces and the squeegee bed or squeegee bed is made of gunmetal, Teflon-coated, hard nickel-coated or hard-anodized at least in the area of the sliding areas.
  • the desired coefficient of friction can be achieved by such material pairings.
  • the end face of the squeegee strip advantageously runs at the tear-off edge approximately tangentially to the coated web and, at least in the area of the tear-off edge, is convexly curved from there with a radius of curvature R of 4 mm: s R: s ⁇ , preferably 5 mm: s R: s 250 mm, more preferably 20 mm: s R 50 50 mm, the curvature being selected in accordance with the desired application weight range and the rheological properties of the coating medium.
  • the end face is expediently shaped by facet grinding, which results in a particularly simple manufacture lead leads.
  • the end face expediently has a width between 8 mm and 60 mm.
  • the width of the end face is determined by how high the application weight should be. The higher the application weight, the lower the hydrodynamic pressure and the wider the end face and thus the wedge gap in length and the smaller the wedge angle in order to achieve a stable state of equilibrium.
  • a spacer can advantageously be inserted between the start-side surface of the squeegee strip and squeegee bed.
  • the tear-off edge of the squeegee strip can be ground to improve its effect.
  • the squeegee bar expediently has an area moment of inertia of 200 mm 4 s I s 7000 mm 4 in the area of the end face and tear-off edge with respect to an axis perpendicular to the tear-off edge and parallel to the coated web.
  • Such a design of the squeegee strip can be achieved in that it has equidistant incisions or equidistant incisions and recesses along its length.
  • the squeegee can be made of polytetrafluoroethylene, which makes incisions unnecessary.
  • the squeegee can alternatively be made of rubber-elastic material and have a wear-resistant insert or attachment on the end face.
  • the end face of the squeegee strip advantageously has a Vickers hardness greater than 600 HV.
  • the end face of the squeegee strip is appropriately chrome-plated.
  • the end face thereof can also be formed by an insert piece of high wear resistance inserted into the squeegee strip.
  • the squeegee strip is advantageously formed in the area of the end face on its underside with a longitudinal recess to form a labyrinth seal with respect to the squeegee holder in order to prevent coating medium from penetrating into its guides relative to the squeegee holder.
  • the elastic pressure medium preferably a pressure hose, expediently acts between a surface of the doctor bed that is essentially perpendicular to the sliding surface on the outlet side and a surface of the doctor bar that is essentially parallel to this.
  • the pressure medium and the squeegee strip can also be formed in one piece.
  • a further sealing elastic pressure medium preferably a pressure hose, is advantageously arranged between the start-side surface of the squeegee bar and the squeegee bed.
  • This further sealing elastic pressure medium prevents the penetration of coating medium between the squeegee holder and squeegee bar.
  • the further pressure medium and the squeegee can advantageously be formed in one piece.
  • the backup roller advantageously has a rubber-elastic surface, the hardness of which is preferably 60 s Shore A s 95.
  • two doctor blades with mutually facing end faces with different radii of curvature with different coating can be arranged.
  • a fixed ratio for the application weight can be set on both sides. It is understood that in this case no back-up roller is required and provided for guiding the coated material web in the coating area.
  • the same radii are used for the same application weight on both sides.
  • additional pressure elements for locally increasing the contact pressure can be arranged behind the first pressure medium.
  • These pressure elements are advantageously designed as adjusting screws in the doctor bed acting on a steel sheet support.
  • the squeegee can advantageously have a longitudinal slot open to the material web, at the open end of which an insert piece having the end face is attached by means of a latching connection.
  • the squeegee strip having the longitudinal slot can be divided along its length into a plurality of individually movable holding blocks.
  • means for partially pressing down the squeegee strip are expediently provided for easier removal of dirt which may occur between the squeegee strip and the material web and which would cause stripes on the material web, in particular in the line.
  • These means are advantageously insertable into the squeegee key, which act on a lateral extension of the squeegee bar.
  • a material web 1 to be coated runs in the direction of arrow A over a support roller 2.
  • a squeegee strip 6 is guided in a rigid doctor bed 3 between parallel sliding surfaces 4, 5.
  • the doctor blade 6 has an end face 7 pressed against the coated web 1 with a sharp-edged tear-off edge 8.
  • a pressure medium in the form of a pressure hose 9 between doctor blade holder 3 and doctor blade strip 6 the rocket strip 6 is pressed variably against the material web 1 to be coated.
  • the squeegee strip 3 is freely displaceable along the parallel sliding surfaces 4, 5 of the squeegee bed 3 in two axes within selectable limits, that is to say it is freely stretchable.
  • the doctor blade 6 has in the area of the end face 7 and tear-off edge 8, relative to an axis perpendicular to the tear-off edge 8 and parallel to the coated web 1, a relatively low area moment of inertia 1, which is preferably in the range between 200 mm 4 and 7 000 mm 4 .
  • Such felicitnträghe i ts moment I can for example be achieved in that. As can be seen from FIG.
  • equidistant incisions 10 and recesses 11 are provided along the length of the squeegee strip 6, the strip cross-section remaining constant over the entire length of the squeegee strip 6 up to a short distance from the tear-off edge 8.
  • the flexural softness of the squeegee strip 6 achieved in this way can alternatively also be achieved by suitable choice of material or by a correspondingly low height of the squeegee strip 6.
  • the end face 7 of the squeegee strip 6 runs at the tear-off edge 8 approximately tangentially to the coated web 1.
  • the end face 7 has a curvature with a radius of curvature R between 4 mm and ⁇ , preferably between, at least in the region of the tear-off edge 8 5 mm and 250 mm, further preferably between 20 mm and 50 mm to form a narrowing application gap.
  • the curvature is selected depending on the desired application weight range and the rheological properties of the application medium.
  • the squeegee strip 6 also has a surface with a Vickers hardness greater than 600 HV, at least in the region of the curved end face 7, in order to obtain a high wear resistance of the end face 7.
  • the end face 7 of the squeegee strip 6 can be chrome-plated, surface- or case-hardened, nitrided, coated by spraying on oxide ceramics, anodized, hard-coated or hard-nickel-plated in the case of aluminum.
  • the tear-off edge 8 of the squeegee strip 6 is designed to be absolutely straight and sharp-edged, as a result of which an extremely good surface smoothness of the coat application is achieved.
  • a further improvement in the tear-off behavior can be achieved, for example, by grinding the tear-off edge 8 at 12, as shown in FIG. 4.
  • the squeegee bar 6 is formed in the region of the end face 7 on its underside with a longitudinal recess 14 to form a labyrinth seal relative to the squeegee holder 3.
  • a limitation of the displacement of the squeegee bar 6 relative to the squeegee holder 3 is also achieved.
  • the geometry of the end face 7 of the squeegee strip 6 always remains constant with the described squeegee strip 6, regardless of the respective contact pressure. Since the contact pressure in addition to the formation of the end face 4, d. H. the size of the curvature R. of the web speed, the rheology of the application medium and the physical properties of the material web 1 is an essential parameter, and on the other hand this contact pressure does not change the geometry of the end face 7, the quality of the coating can be kept completely constant at different contact pressures.
  • An air pressure hose 9 is used as the elastic pressure medium for applying the contact pressure in the described device. Due to its flexibility, the pressure hose 9 ensures that the doctor blade 6 is pressed evenly over the working width against the material web 1 running on the support roller 2.
  • the line pressure applied via the hose pressure keeps the hydrodynamic pressure under the end face 7 of the doctor blade 6 in equilibrium.
  • the application weight can be varied very delicately, evenly and continuously, with the same state of equilibrium between hydrodynamic pressure and doctor blade pressure being established at every point in the working width without an additional profiling device. This is the prerequisite for a uniform line profile.
  • the pressure hose 9 is designed so that its forces can only be supported against the rear surface 15 of the squeegee strip 6 and an impression surface 16 in the squeegee holder 3 which is essentially parallel to the latter.
  • the squeegee strip 6 and the pressure hose 9 can also be formed in one piece, it must be ensured that this unit on the one hand has the required flexural softness and on the other hand the end face 7 has sufficient wear resistance.
  • the material pairing between the squeegee holder 3 and the squeegee strip 6 should be selected so that the lowest possible frictional forces build up when the squeegee strip 6 is displaced, which counteract the contact pressure of the pressure hose 9 and thus lead to a hysteresis behavior in the Regulation of the order weight could lead.
  • the inevitable shear stress condition in the application gap creates normal forces on the squeegee strip 6, which the air pressure in the pressure hose 9 maintains equilibrium. If the coefficient of friction ⁇ between doctor blade 6 and doctor bed 3 is chosen to be less than or equal to 0.1, the friction forces that occur are negligibly small compared to the contact pressure.
  • the material pairing between squeegee holder 3 and squeegee strip 6 can be selected to achieve the desired coefficient of friction g such that the squeegee bed 3 is made of steel or coated aluminum and the squeegee strip 6 is made of gunmetal or teflon-coated, hard nickel-coated or at least in the area of the sliding surfaces is hard anodized.
  • a further squeegee strip 6 is arranged in relation to the first squeegee strip 6 instead of the support roller 2 such that the end faces 7 of both squeegee strips 6 face each other and the squeegee strips 6 touch the material web 1 with their tear-off edges 8 at the same height.
  • the squeegee bed 3 has a stop bar 26 which has the flat sliding surface 4 for abutment and for slidingly guiding the squeegee bar 6.
  • a further sealing elastic pressure means in the form of a pressure tube 28 is disposed, which seals and a doctor bed 3 and doctor strip 6 against each other on the other hand to fix an achieved stable position of the doctor strip 6 can be used by increasing the pressure.
  • the pressure hose 28 presses against the surface 27 of the squeegee strip 6 and can hold the squeegee strip 6 in a stable position once it has been set at a correspondingly high pressure.
  • a relatively narrow squeegee strip 6 is also used, with an additional spacer 29 being provided in order to be able to replace the narrow squeegee strip 6 with a wider one.
  • squeegee strips 6 are also shown with a longitudinal slot 30 open to the material web 2, at the open end of which an insert 31 having the end face 7 is attached by means of a latching connection.
  • the squeegee strip 6 can be divided into a plurality of individually movable holding blocks 32 (FIG. 7).
  • additional pressure elements for locally increasing the contact pressure are further arranged to compensate for uneven coating medium absorption of the material web 1 behind the first pressure hose 9.
  • These pressure elements are designed as adjusting screws 34 in the doctor bed 3 which engage on a steel sheet support 33.
  • doctor blade bar 6 in the exemplary embodiment according to FIG. 6, in order to make it easier to remove any dirt (grain) that may occur between doctor bar 6 and material web, which would cause streaks on the material web, in particular in the line, means for partially depressing doctor blade bar 6 in the form of into the doctor bed 3 usable, provided on a lateral extension 35 of the squeegee 6 keys 36 provided, by rotating the squeegee 6 is depressed.

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  • Coating Apparatus (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)

Claims (31)

1. Dispositif pour l'enduction d'une bande de matériau courante avec une épaisseur de dépôt réglable à l'aide d'une latte de râclage (6) appliquée contre la face enduite de la bande de matériau, latte qui est disposée dans un berceau (3) rigide et qui est appuyée élastiquement avec une pression réglable contre la bande de matériau à enduire et uniformément sur la largeur de dépôt, la face avant de la latte de râclage (6) tournée vers la bande de matériau à enduire, face qui présente un contour rectangulaire. formant avec la bande une fente de dépôt d'épaisseur décroissante dont la géométrie est indépendante de la pression d'application et l'arête supérieure de la face avant formant une arête de lissage tranchante et rectiligne, caractérisé en ce que la latte de râclage (6) est guidée avec un frottement faible sur au moins une surface de glissement (4) plane du berceau (3) disposée du côté de l'échappement dans la direction de circulation de la bande et qu'elle est flexible dans la région de la face avant (7) et de l'arête de lissage (9) et en ce qu'en outre l'organe de pression (9) est élastique et est disposé entre la latte de râclage (6) et le berceau (3).
2. Dispositif suivant la revendication 1, caractérisé en ce que la latte de râclage (6) est guidée avec un frottement faible entre des surfaces de glissement (4, 5) parallèles ménagées dans le berceau.
3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que le coefficient de frottement entre la latte de râclage (6) et le berceau (3) est environ µ ≤ 0,1.
4. Dispositif suivant la revendication 3, caractérisé en ce que la latte de râclage (6), respectivement le berceau (3) est au moins dans la région des surfaces de glissement (4. 5), en acier, en acier allié ou en aluminium revêtu et que le .berceau (3), respectivement la latte de râclage (6) est, au moins dans la région des surfaces de glissement (4, 5), en laiton rouge, revêtu de téflon, revêtu de nickel dur ou oxydé par anodisation dure.
5. Dispositif suivant une des revendications 1 à 4, caractérisé en ce que la face avant (7) de la latte de râclage (6) se termine à l'arête de lissage (8) de façon sensiblement tangentielle à la bande enduite (1) et en ce qu'elle est, au moins dans la région de l'arête de lissage (8) et partant de celle-ci, dotée d'une courbure convexe avec un rayon de courbure R de 4 mm ≤ R ≤ ∞ mm, de préférence 5 mm s R ≤ 250 mm, et de préférence encore 20 mm ≤ R ≤ 50 mm.
6. Dispositif suivant la revendication 5, caractérisé en ce que pour l'approximation du rayon de courbure, la face avant (7) est formée par polissage par facettes.
7. Dispositif suivant une des revendications 1 à 6, caractérisé en ce que la face avant (7) présente une largeur comprise entre 8 mm et 60 mm.
8. Dispositif suivant une des revendications 1 à 7, caractérisé en ce qu'une pièce d'écartement (29) est insérée entre la face (27) de la latte de râclage, située du côté de l'échappement, et le berceau (3).
9. Dispositif suivant une des revendications 1 à 8, caractérisé en ce que l'arête de lissage (8) de la latte de râclage (6) est meulée en dépouille.
10. Dispositif suivant une des revendications 1 à 9, caractérisé en ce que la latte de râclage (6) présente, dans la région de la face avant (7) et de l'arête de lissage (8), un moment d'inertie géométrique I de 200 mm4 ≤ 1 s 7 000 mm4 par rapport à un axe perpendiculaire à l'arête de lissage (3) et parallèle à la bande enduite (1).
11. Dispositif suivant une des revendications 1 à 10, caractérisé en ce que la latte de râclage (6) présente sur sa longueur des entailles (10) équidistantes ou des entailles (10) et des évidements (11) équidistants.
12. Dispositif suivant une des revendications 1 à 10, caractérisé en ce que la latte de râclage (6) est constituée de polytétrafluoroéthylène.
13. Dispositif suivant une des revendications 1 à 10, caractérisé en ce que la latte de râclage (6) est constituée d'un matériau ayant l'élasticité du caoutchouc.
14. Dispositif suivant une des revendications 1 à 13, caractérisé en ce que la face avant (7) de la latte de râclage (6) présente une dureté Vickers supérieure à 600 HV.
15. Dispositif suivant une des revendications 1 à 14, caractérisé en ce que la face avant de la latte de râclage (6) est chromée, trempée en surface ou cémentée, nitrurée, revêtue d'oxyde céramique par projection, éloxée, recouverte d'aluminium dur ou de nickel dur.
16. Dispositif suivant une des revendications 1 à 15, caractérisé en ce que la face avant (7) de la latte de râclage (6) est constituée par une pièce rapportée (13) ayant une haute résistance à l'abrasion, introduite dans la latte de râclage (6).
17. Dispositif suivant une des revendications 1 à 16, caractérisé en ce que la latte de râclage (6) est pourvue, dans la région de là face avant sur sa face inférieure, d'une saignée longitudinale (14) formant un joint à labyrinthe par rapport au porte- râcle (3).
18. Dispositif suivant une des revendications 1 à 17, caractérisé en ce que l'organe de pression (9) souple agit entre une face (16) du berceau (3) essentiellement perpendiculaire à la surface de glissement (4) située du côté de l'échappement et une face (15) de la latte de râclage (6) essentiellement parallèle à celle-ci.
19. Dispositif suivant une des revendications 1 à 18, caractérisé en ce que l'organe de pression (9) est un tuyau souple sous pression.
20. Dispositif suivant une des revendications 1 à 18, caractérisé en ce que l'organe de pression (9) et la latte de râclage (6) sont réalisés en une seule pièce.
21. Dispositif suivant une des revendications 1 à 20, caractérisé en ce qu'un autre organe de pression (28) souple étanche est disposé entre la face (27) de la latte de râclage (6), située du côté de l'échappement, et le berceau (3).
22. Dispositif suivant la revendication 21, caractérisé en ce que l'organe de pression supplémentaire (28) est un tuyau souple sous pression.
23. Dispositif suivant la revendication 21, caractérisé en ce que l'organe de pression supplémentaire (28) et la latte de râclage (6) sont réalisés en une seule pièce.
24. Dispositif suivant une des revendications 1 à 23, caractérisé en ce que le rouleau de support (2) présente une surface ayant l'élasticité du caoutchouc, dont la dureté est de préférence 60 ≤ Shore A :s 95.
25. Dispositif suivant une des revendications 1 à 23, caractérisé en ce que, pour l'enduction des deux faces des bandes de matériau, on dispose deux lattes de râclage (6) avec leurs faces avant (7) tournées l'une vers l'autre et avec des rayons de courbure différents en cas d'enductions différentes.
26. Dispositif suivant une des revendications 1 à 25, caractérisé en ce que, pour compenser des irrégularités de dépôt de l'agent d'enduction sur la bande de matériau (1), des éléments d'application supplémentaires sont disposés derrière le premier organe de pression (9) pour augmenter localement la force d'application.
27. Dispositif suivant la revendication 26, caractérisé en ce que les éléments d'application supplémentaires sont constitués sous la forme de vis de réglage (34) montées dans le berceau (3) et attaquant un support (33) en tôle d'acier.
28. Dispositif suivant une des revendications 1 à 27, caractérisé en ce que la latte de râclage (6) présente une fente longitudinale (30) ouverte vers la bande de matériau (1 à l'extrémité ouverte de laquelle est montée, au moyen d'un assemblage à cliquet, une pièce rapportée (31) qui porte la face avant (7).
29. Dispositif suivant la revendication 23, caractérisé en ce que la latte de râclage (6) munie de la fente longitudinale (30) est subdivisée en plusieurs blocs de maintien (32) mobiles individuellement.
30. Dispositif suivant une des revendications 1 à 29, caractérisé en ce que des moyens sont prévus pour enfoncer partiellement la latte de râclage (6).
31. Dispositif suivant la revendication 30, caractérisé en ce que les moyens sont constitués par des clés (36) à introduire dans le berceau (3) et attaquant un ergot latéral (35) de la latte de râclage (6).
EP83109878A 1982-11-23 1983-10-04 Dispositif pour l'enduction d'une bande de matériau mobile Expired EP0109520B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83109878T ATE31151T1 (de) 1982-11-23 1983-10-04 Vorrichtung zum beschichten laufender materialbahnen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3243317 1982-11-23
DE3243317 1982-11-23
DE3305966 1983-02-21
DE3305966 1983-02-21

Publications (2)

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EP0109520A1 EP0109520A1 (fr) 1984-05-30
EP0109520B1 true EP0109520B1 (fr) 1987-12-02

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EP83109879A Expired EP0109521B1 (fr) 1982-11-23 1983-10-04 Dispositif pour l'enduction d'une bande de matériau en mouvement
EP83109878A Expired EP0109520B1 (fr) 1982-11-23 1983-10-04 Dispositif pour l'enduction d'une bande de matériau mobile

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Application Number Title Priority Date Filing Date
EP83109879A Expired EP0109521B1 (fr) 1982-11-23 1983-10-04 Dispositif pour l'enduction d'une bande de matériau en mouvement

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EP (2) EP0109521B1 (fr)
DE (2) DE3369080D1 (fr)

Cited By (1)

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DE19603861C1 (de) * 1996-02-03 1997-07-31 Jagenberg Papiertech Gmbh Vorrichtung zum Beschichten einer Materialbahn, insbesondere einer Papier- oder Kartonbahn

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US4826555A (en) * 1986-02-28 1989-05-02 Miply Equipment, Inc. Method and apparatus for compressing a self-supported web
DE8618988U1 (de) * 1986-07-16 1986-09-11 Krones Ag Hermann Kronseder Maschinenfabrik, 8402 Neutraubling Beleimungsvorrichtung für Etikettiermaschinen
DE3729621A1 (de) * 1987-09-04 1989-03-16 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
DE3934418A1 (de) * 1989-10-14 1991-04-18 Voith Gmbh J M Rakel
DE4402226C2 (de) * 1994-01-27 1997-11-06 Voith Gmbh J M Rakelvorrichtung
CN117483182B (zh) * 2023-12-29 2024-03-08 江苏中鑫波纹管有限公司 一种智能型波纹管生产用加工设备

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DE1652280A1 (de) * 1966-01-18 1970-09-17 Brittains Ltd Vorrichtung zum Beschichten einer bewegten Materialbahn mit einer fluessigen Verbindung

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DE2359413C3 (de) * 1973-11-29 1982-02-11 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Beschichten laufender Werkstoffbahnen aus Papier, Karton, Kunststoff o.dgl.
DE2825907B2 (de) * 1978-06-13 1981-02-26 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Aufbringen einer Beschichtung auf eine Materialbahn
DE2845036A1 (de) * 1978-10-16 1980-04-17 Jagenberg Werke Ag Vorrichtung zum kontinuierlichen gleichzeitigen aufbringen von beschichtungen konstanter dicken auf beide seiten einer materialbahn
DE3022955C2 (de) * 1980-06-19 1982-12-16 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Regeln der Auftragsstärke beim Beschichten laufender Materialbahnen

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DE1652280A1 (de) * 1966-01-18 1970-09-17 Brittains Ltd Vorrichtung zum Beschichten einer bewegten Materialbahn mit einer fluessigen Verbindung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19603861C1 (de) * 1996-02-03 1997-07-31 Jagenberg Papiertech Gmbh Vorrichtung zum Beschichten einer Materialbahn, insbesondere einer Papier- oder Kartonbahn

Also Published As

Publication number Publication date
EP0109521B1 (fr) 1987-01-14
EP0109520A1 (fr) 1984-05-30
DE3369080D1 (en) 1987-02-19
EP0109521A1 (fr) 1984-05-30
DE3374760D1 (en) 1988-01-14

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