EP0480285A2 - Rollers assembly for coating web or sheet material - Google Patents

Rollers assembly for coating web or sheet material Download PDF

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Publication number
EP0480285A2
EP0480285A2 EP91116692A EP91116692A EP0480285A2 EP 0480285 A2 EP0480285 A2 EP 0480285A2 EP 91116692 A EP91116692 A EP 91116692A EP 91116692 A EP91116692 A EP 91116692A EP 0480285 A2 EP0480285 A2 EP 0480285A2
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EP
European Patent Office
Prior art keywords
roller
counter
applicator according
bearing
applicator
Prior art date
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Granted
Application number
EP91116692A
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German (de)
French (fr)
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EP0480285A3 (en
EP0480285B1 (en
Inventor
Erich Dipl.-Ing. Hanssmann
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HANSSMANN ERICH
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HANSSMANN ERICH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers

Definitions

  • roller application units with these features have been in use for a long time and are therefore generally known. Such devices have to meet certain conditions: The application roller and the counter roller must be completely rigid so that a uniform coating of the material passing through is guaranteed over the entire web width. This condition is met in the known applicators by appropriate dimensioning of the diameter and wall thickness of the applicator roller and the counter roller.
  • the counter roller should not come into contact with the coating liquid. Their width must therefore be matched to the width of the sheet or sheet material to be coated. If the counter-roller protrudes laterally beyond the surface of the material to be coated, its edges are contaminated with the coating liquid, this contamination being transferred to subsequent rollers.
  • the surface of the counter roll must have a more or less hard to soft elastic surface adapted to the coating substance. Since various types of sheet or sheet-like materials are to be coated with different substances with such an application unit, it is necessary that a number of counter-rollers with different surfaces on the one hand and different widths on the other hand be available. Of course, the counter roll must be interchangeably mounted in the applicator.
  • the invention is therefore based on the object of improving a roller applicator of the type defined in the introduction to the description and in the preamble of claim 1 in such a way that the deficiencies described of the known applicator mechanisms of this type are eliminated.
  • the counter roller should be light, be able to be kept available in a large number of designs with different surfaces and in different widths at the lowest possible cost, and be easy and quick to replace without great effort in manual work and technical aids.
  • the accumulation wave of the coating liquid should be kept as short as possible before the inlet between the application roller and the material web to be coated, which improves the uniformity of the coating.
  • a trough 3 for receiving a coating liquid is arranged in the lower region on a trough support 2 and a scoop roller 4 immersed in the trough 3 is mounted above it.
  • the position of the tub support 2 is vertically adjustable by means of a hand spindle 5 .
  • the tub 3 is easily removable on the tub support 2 and is exchangeably attached to another tub.
  • the scoop roller 4 has a structured surface. It is associated with a doctor device 6 for wiping off excess coating liquid.
  • the side walls 1 of the machine frame each have a vertical guide and bearing block 7 . In the lower region of a rolling on the scoop roller 4 application roller 8 is adjustably supported against the scoop roller.
  • a counter-roller set is arranged above it, which is movable by means of several cylinder drives in the vertical guide of the guide and bearing blocks 7 against the application roller 8 .
  • the counter-roller set consists of three rollers, namely two shape-identical, rigid press rollers 9 , 10 , which are mounted parallel and next to each other in a horizontal plane at a slightly greater distance above the applicator roller 8 and one between the applicator roller 8 and the two press rollers 9 , 10 counter roller 11 . This is pressed against the applicator roller 8 by the two press rollers 9 , 10 , whereby it rolls on the one hand under the press rollers 9 , 10 and on the other hand on the web 12 of the material to be coated which runs over the applicator roller 8 .
  • the counter roll 11 is guided at both ends between the vertical bearing plates 13, which are each part of which is arranged on the guide blocks 7 mountings for the counter-roller. 11 It has a stub axle 14 with a central depression at each end. There is one end bearing ball 15 each, which rotates with the counter roller 11 on the adjacent bearing plate 13 of the holder.
  • the brackets for the counter-roller 11 each consist of two movably connected parts, namely a bracket part 16 fastened to the adjacent guide and bearing block 7 and a device on the free inner side of which is rotatably mounted about an axis 17 running parallel to the counter-roller 11 at a distance from the latter for lateral guidance and for Lift the counter roller 11 out of its working position.
  • Each of these at both ends of the counter roll 11 provided means for laterally guiding and lifting of the counter-roller 11 has a around the axis 17 pivotally mounted on Konsolteil 16, oriented perpendicular to the axis 17 of the bearing plate eighteenth
  • Konsolteil 16 oriented perpendicular to the axis 17 of the bearing plate eighteenth
  • two bearing journals 19 , 20 with commercially available ball bearings 19a , 20a are arranged, the axes of which are directed parallel to the counter roller 11 and on which these rests with their stub axles 14 .
  • the bearing plate 18 is designed as a central part of a two-armed lever pivotable about the axis 17 .
  • the short lever arm 21 is connected by a tension spring 22 to a downward arm 23 fastened to the bracket part 16 .
  • the long lever arm opposite the short lever arm forms an operating lever 24 .
  • the guide and bearing blocks 7 holding the counter-roller set 9 , 10 , 11 are vertically movable by means of a plurality of cylinder drives on the side walls 1 of the machine frame, whereby the counter-roller set 9 , 10 , 11 from the applicator roller 8 or from the web running over it 12 of the material to be coated can be lifted off. Then, after depressing the operating lever 24, the counter roller 11 can be easily removed and another one inserted.
  • the counter roll 11 consists of a light core tube 11a , which is closed at both ends by end walls 11b with the stub axles 14 and is surrounded by a jacket 11c made of a different material.
  • the coat 11c can, depending on the type the coating liquid and / or the material to be coated consist of more or less soft rubber, plastic or other material. Its surface can be smooth or textured. It can also be more or less shorter than the core tube 11a , its length depending on the width of the material web or sheet to be coated.
  • the counter-roller 11 is practically not subjected to bending, since it bears under the rigid pressure rollers 9 , 10 over the entire length of its jacket 11c and is only pressed down by this onto the web of the material to be coated which runs over the application roller. It only has to withstand the pressure of the press rolls 9 , 10 without permanent deformation. Therefore, compared to the counter rolls in the known applicators, it can be built much more easily and, in terms of production costs, considerably cheaper. It is therefore much cheaper to have a larger range of counter-rollers with different surfaces and different shell widths. Due to the low weight, the replacement of the counter rollers can be carried out effortlessly with little manual work, even without technical aids.

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

Abstract

Roller assembly for coating with a liquid coating agent a web-shaped or sheet-shaped material passing through it, a dipper roller being mounted above a trough and dipping into said trough and above said roller an application roller being mounted which rolls on said dipper roller and at least one counter roller which presses down the web of material to be coated onto the application roller being mounted above the application roller with variable spacing from the application roller. The counter roller (11) is a component of a counter roller set consisting of three rollers, two torsionally rigid pressing rollers (9, 10) being vertically movable above the counter roller (11) and being mounted so as to be adjustable with the desired pressure onto the application roller (8) and the counter roller (11) being constructed as a light-weight, less torsionally rigid roller with a diameter which is smaller in comparison with the pressing rollers (9, 10) and has an axle stub (14) at the two ends. <IMAGE>

Description

Die Erfindung betrifft ein Walzen-Auftragwerk zum Beschichten von durchlaufendem bahn- oder tafelförmigem Material mit einem in flüssigem Zustand aufzutragenden Beschichtungsmittel, wobei

  • im unteren Bereich zwischen zwei Seitenwänden eines Maschinengestells über einer Wanne zur Bereithaltung der aufzutragenden Beschichtungsflüssigkeit eine in diese eintauchende Schöpfwalze und darüber eine auf der Schöpfwalze abrollende Auftragwalze gelagert sind und
  • über der Auftragwalze wenigstens eine die zu beschichtende Materialbahn oder -tafel gegen die Auftragwalze niederdrückende und auf dieser abrollende Gegenwalze auswechselbar zwischen zwei an den Seitenwänden des Maschinengestells angeordneten Führungs- und Lagerblöcken gelagert ist, deren Abstand zur Auftragwalze veränderbar ist.
The invention relates to a roller applicator for coating continuous web or sheet material with a coating agent to be applied in the liquid state, wherein
  • in the lower region between two side walls of a machine frame, above a trough for holding the coating liquid to be applied, a scoop roller which is immersed in it and above which an application roller rolling on the scoop roller are mounted and
  • Above the applicator roller, at least one counter-roller, which presses the material web or sheet to be coated against the applicator roller and rolls on it, is interchangeably mounted between two guide and bearing blocks arranged on the side walls of the machine frame, the distance to the applicator roller being variable.

Walzen-Auftragwerke mit diesen Merkmalen sind bereits seit langem im Gebrauch und daher allgemein bekannt. Solche Vorrichtungen haben bestimmte Bedingungen zu erfüllen:
Die Auftragwalze und die Gegenwalze müssen völlig biegesteif ein, damit eine über die ganze Bahnbreite gleichmäßige Beschichtung des durchlaufenden Materials gewährleistet ist. Diese Bedingung wird bei den bekannten Auftragwerken durch entsprechende Dimensionierung der Durchmesser und der Wandstärken der Auftragwalze und der Gegenwalze erfüllt.
Roller application units with these features have been in use for a long time and are therefore generally known. Such devices have to meet certain conditions:
The application roller and the counter roller must be completely rigid so that a uniform coating of the material passing through is guaranteed over the entire web width. This condition is met in the known applicators by appropriate dimensioning of the diameter and wall thickness of the applicator roller and the counter roller.

Die Gegenwalze soll mit der Beschichtungsflüssigkeit nicht in Berührung kommen. Ihre Breite muß daher mit der Breite des zu beschichtenden bahn- oder tafelförmigen Materials abgestimmt sein. Wenn die Gegenwalze seitlich über die zu beschichtende Materialfläche hinausragt, werden ihre Ränder mit der Beschichtungsflüssigkeit verunreinigt, wobei diese Verunreinigung auf nachfolgende Walzen übertragen wird.The counter roller should not come into contact with the coating liquid. Their width must therefore be matched to the width of the sheet or sheet material to be coated. If the counter-roller protrudes laterally beyond the surface of the material to be coated, its edges are contaminated with the coating liquid, this contamination being transferred to subsequent rollers.

Die Oberfläche der Gegenwalze muß eine der Beschichtungssubstanz angepaßte mehr oder weniger harte bis weichelastische Oberfläche haben. Da mit einem solchen Auftragwerk verschiedenartige bahn- oder tafelförmige Materialien mit verschiedenen Substanzen beschichtet werden sollen, ist es erforderlich, daß eine Reihe von Gegenwalzen mit einerseits verschiedenen Oberflächen und andererseits in verschiedenen Breiten verfügbar ist. Dabei muß natürlich die Gegenwalze auswechselbar im Auftragwerk gelagert sein.The surface of the counter roll must have a more or less hard to soft elastic surface adapted to the coating substance. Since various types of sheet or sheet-like materials are to be coated with different substances with such an application unit, it is necessary that a number of counter-rollers with different surfaces on the one hand and different widths on the other hand be available. Of course, the counter roll must be interchangeably mounted in the applicator.

Daraus ergibt sich eine Reihe von Unvollkommenheiten bei den bekannten Auftragwerken:
Es ist ein erheblicher Aufwand an manueller Arbeit und technischen Hilfsmitteln erforderlich, um die Gegenwalze auszuwechseln, die wegen der erforderlichen Formstabilität sehr schwer ist.
Die Verfügbarkeit einer Reihe von Gegenwalzen mit verschiedenen Oberflächen und verschiedenen Breiten ist sehr kostspielig, dies um so mehr, je vielseitiger die Einsatzmöglichkeiten eines solchen Auftragwerkes sein sollen.
Die Gegenwalze mit verhältnismäßig großem Durchmesser bewirkt eine lange Stauwelle der Beschichtungsflüssigkeit vor dem Einlauf zwischen Auftragwalze und der unter der Gegenwalze anliegenden Materialbahn. Dadurch wird die Gleichmäßigkeit der Beschichtung beeinträchtigt.
This results in a number of imperfections in the known commissioned works:
A considerable amount of manual work and technical aids are required to complete the Replace counter roll, which is very difficult due to the required dimensional stability.
The availability of a number of counter rolls with different surfaces and different widths is very expensive, and the more varied the possible uses of such a coating unit, the more so.
The counter roller with a relatively large diameter causes a long accumulation wave of the coating liquid before the inlet between the application roller and the material web lying under the counter roller. This affects the uniformity of the coating.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Walzen-Auftragwerk der in der Beschreibungseinleitung und im Oberbegriff des Anspruchs 1 definierten Gattung so zu verbessern, daß die beschriebenen Mängel der bekannten Auftragwerke dieser Art beseitigt sind. Insbesondere soll die Gegenwalze leicht sein, in einer Vielzahl von Ausführungen mit veschiedenen Oberflächen und in verschiedenen Breiten bei geringstmöglichem Kostenaufwand verfügbar gehalten werden können sowie einfach und schnell ohne großen Aufwand an manueller Arbeit und technischen Hilfsmitteln auswechselbar sein. Dabei soll die Stauwelle der Beschichtungsflüssigkeit vor dem Einlauf zwischen der Auftragwalze und der zu beschichtenden Materialbahn möglichst kurz gehalten werden, was die Gleichmäßigkeit der Beschichtung verbessert.The invention is therefore based on the object of improving a roller applicator of the type defined in the introduction to the description and in the preamble of claim 1 in such a way that the deficiencies described of the known applicator mechanisms of this type are eliminated. In particular, the counter roller should be light, be able to be kept available in a large number of designs with different surfaces and in different widths at the lowest possible cost, and be easy and quick to replace without great effort in manual work and technical aids. The accumulation wave of the coating liquid should be kept as short as possible before the inlet between the application roller and the material web to be coated, which improves the uniformity of the coating.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein solches Auftragwerk mit den Merkmalen gemäß dem kennzeichnenden Teil des Anspruchs 1 ausgestattet ist.
Weitere Einzelheiten der Erfindung und alternative Detail-Lösungsvorschläge gehen aus den Ansprüchen 2 bis 11 hervor.
The stated object is achieved in that such an application is equipped with the features according to the characterizing part of claim 1 is.
Further details of the invention and alternative detailed solutions are evident from claims 2 to 11.

Die Erfindung wird im Folgenden anhand einer sie beispielweise darstellenden Zeichnung näher erläutert. Das Ausführungsbeispiel ist ein Walzenauftragwerk für die Beschichtung von bahnförmigem Material. Es zeigen:

Fig. 1
Eine Frontansicht des gesamten Auftragwerkes in schematisierter Darstellung;
Fig. 2
eine Stirnansicht derselben Maschine;
Fig. 3
eine Stirnansicht der Lagerung der Gegenwalze;
Fig. 4
eine Frontansicht der Lagerung der Gegenwalze nach der Schnittlinie A bis D der Fig. 3;
Fig. 5
eine innere Stirnansicht der Führungs- und Aushebeeinrichtung für die Gegenwalze;
Fig. 6
die Führungs- und Aushebeeinrichtung für die Gegenwalze von der Bedienungsseite her gesehen;
Fig. 7
die Führungs- und Aushebeeinrichtung für die Gegenwalze in Draufsicht.
The invention is explained in more detail below with the aid of a drawing, for example. The exemplary embodiment is a roller applicator for the coating of sheet material. Show it:
Fig. 1
A front view of the entire commissioned work in a schematic representation;
Fig. 2
an end view of the same machine;
Fig. 3
an end view of the mounting of the counter roll;
Fig. 4
a front view of the mounting of the counter roller along the section line A to D of Fig. 3;
Fig. 5
an inner end view of the guide and lifting device for the counter roller;
Fig. 6
seen the guide and lifting device for the counter roller from the operator side;
Fig. 7
the guide and lifting device for the counter roller in plan view.

Zwischen zwei Seitenwänden 1 eines Maschinengestells sind im unteren Bereich auf einem Wannenträger 2 eine Wanne 3 zur Aufnahme einer Beschichtungsflüssigkeit angeordnet und darüber eine in die Wanne 3 eintauchende Schöpfwalze 4 gelagert. Die Position des Wannenträgers 2 ist mittels Handspindel 5 vertikal verstellbar. Die Wanne 3 ist auf dem Wannenträger 2 leicht abnehmbar und gegen eine andere Wanne austauschbar befestigt. Die Schöpfwalze 4 hat eine strukturierte Oberfläche. Ihrist eine Rakeleinrichtung 6 zum Abstreifen überschüssiger Beschichtungsflüssigkeit zugeordnet. Oberhalb der Schöpfwalze 4 haben die Seitenwände 1 des Maschinengestells je einen vertikalen Führungs- und Lagerblock 7. In dessen unterem Bereich ist eine auf der Schöpfwalze 4 abrollende Auftragwalze 8 gegen die Schöpfwalze 4 verstellbar gelagert. Darüber ist ein Gegenwalzen-Satz angeordnet, der mittels mehrerer Zylindertriebe in der vertikalen Führung der Führungs- und Lagerblöcke 7 gegen die Auftragwalze 8 beweglich ist.
Der Gegenwalzen-Satz besteht aus drei Walzen, nämlich aus zwei formgleichen, biegesteifen Preßwalzen 9, 10, die in geringem Abstand parallel nebeneinander in waagerechter Ebene in etwas größerem Abstand über der Auftragwalze 8 gelagert sind und einer zwischen der Auftragwalze 8 und den beiden Preßwalzen 9, 10 gelagerten Gegenwalze 11. Diese wird von den beiden Preßwalzen 9, 10 gegen die Auftragwalze 8 niedergedrückt, wobei sie einerseits unter den Preßwalzen 9, 10 und andererseits auf der über die Auftragwalze 8 laufenden Bahn 12 des zu beschichtenden Materials abrollt.
Between two side walls 1 of a machine frame, a trough 3 for receiving a coating liquid is arranged in the lower region on a trough support 2 and a scoop roller 4 immersed in the trough 3 is mounted above it. The position of the tub support 2 is vertically adjustable by means of a hand spindle 5 . The tub 3 is easily removable on the tub support 2 and is exchangeably attached to another tub. The scoop roller 4 has a structured surface. It is associated with a doctor device 6 for wiping off excess coating liquid. Above the scoop roller 4 , the side walls 1 of the machine frame each have a vertical guide and bearing block 7 . In the lower region of a rolling on the scoop roller 4 application roller 8 is adjustably supported against the scoop roller. 4 A counter-roller set is arranged above it, which is movable by means of several cylinder drives in the vertical guide of the guide and bearing blocks 7 against the application roller 8 .
The counter-roller set consists of three rollers, namely two shape-identical, rigid press rollers 9 , 10 , which are mounted parallel and next to each other in a horizontal plane at a slightly greater distance above the applicator roller 8 and one between the applicator roller 8 and the two press rollers 9 , 10 counter roller 11 . This is pressed against the applicator roller 8 by the two press rollers 9 , 10 , whereby it rolls on the one hand under the press rollers 9 , 10 and on the other hand on the web 12 of the material to be coated which runs over the applicator roller 8 .

Die Gegenwalze 11 ist an beiden Stirnseiten zwischen senkrechten Lagerscheiben 13 geführt, die jeweils Bestandteil der an den Führungsblöcken 7 angeordneten Halterungen für die Gegenwalze 11 sind. Sie hat an jedem Stirnende einen Achsstummel 14 mit einer zentralen Vertiefung. Darin befindet sich je eine Stirnlager-Kugel 15, die sich mit der Gegenwalze 11 an der benachbarten Lagerscheibe 13 der Halterung dreht.The counter roll 11 is guided at both ends between the vertical bearing plates 13, which are each part of which is arranged on the guide blocks 7 mountings for the counter-roller. 11 It has a stub axle 14 with a central depression at each end. There is one end bearing ball 15 each, which rotates with the counter roller 11 on the adjacent bearing plate 13 of the holder.

Die Halterungen für die Gegenwalze 11 bestehen jeweils aus zwei beweglich miteinander verbundenen Teilen, nämlich einem an dem benachbarten Führungs- und Lagerblock 7 befestigten Konsolteil 16 und einer an dessen freier Innenseite um eine parallel zur Gegenwalze 11 im Abstand von dieser verlaufende Achse 17 drehbar gelagerten Einrichtung zur seitlichen Führung und zum Ausheben der Gegenwalze 11 aus ihrer Arbeitsposition. Jede dieser an beiden Stirnenden der Gegenwalze 11 vorgesehenen Einrichtungen zum seitlichen Führen und Ausheben der Gegenwalze 11 hat eine um die Achse 17 am Konsolteil 16 schwenkbar gelagerte, senkrecht zur Achse 17 gerichtete Lagerplatte 18. An dieser sind auf der der Gegenwalze 11 zugewandten Seite im Bereich des benachbarten Achsstummels 14 die Lagerscheibe 13 und darunter in geringem Abstand nebeneinander zwei Lagerzapfen 19, 20 mit handelsüblichen Kugellagern 19a, 20a angeordnet, deren Achsen parallel zur Gegenwalze 11 gerichtet sind und auf denen diese mit ihren Achsstummeln 14 ruht.The brackets for the counter-roller 11 each consist of two movably connected parts, namely a bracket part 16 fastened to the adjacent guide and bearing block 7 and a device on the free inner side of which is rotatably mounted about an axis 17 running parallel to the counter-roller 11 at a distance from the latter for lateral guidance and for Lift the counter roller 11 out of its working position. Each of these at both ends of the counter roll 11 provided means for laterally guiding and lifting of the counter-roller 11 has a around the axis 17 pivotally mounted on Konsolteil 16, oriented perpendicular to the axis 17 of the bearing plate eighteenth On this, on the side facing the counter roller 11 in the area of the adjacent stub axle 14, the bearing disk 13 and below it, at a short distance, two bearing journals 19 , 20 with commercially available ball bearings 19a , 20a are arranged, the axes of which are directed parallel to the counter roller 11 and on which these rests with their stub axles 14 .

Die Lagerplatte 18 ist als Mittelteil eines zweiarmigen um die Achse 17 schwenkbaren Hebels ausgebildet. Der kurze Hebelarm 21 ist durch eine Zugfeder 22 mit einem am Konsolteil 16 befestigten, nach unten gerichteten Ausleger 23 verbunden. Der dem kurzen Hebelarm gegenüber befindliche lange Hebelarm bildet einen Bedienungshebel 24.
Die den Gegenwalzen-Satz 9, 10, 11 haltenden Führungs- und Lagerblöcke 7 sind mittels mehrerer Zylindertriebe an den Seitenwänden 1 des Maschinengestells vertikal beweglich, womit der Gegenwalzen-Satz 9, 10, 11 von der Auftragwalze 8 bzw. von der darüber laufenden Bahn 12 des zu beschichtenden Materials abgehoben werden kann. Dann läßt sich nach Niederdrücken des Bedienungshebels 24 die Gegenwalze 11 leicht herausnehmen und eine andere einsetzen.
The bearing plate 18 is designed as a central part of a two-armed lever pivotable about the axis 17 . The short lever arm 21 is connected by a tension spring 22 to a downward arm 23 fastened to the bracket part 16 . The long lever arm opposite the short lever arm forms an operating lever 24 .
The guide and bearing blocks 7 holding the counter-roller set 9 , 10 , 11 are vertically movable by means of a plurality of cylinder drives on the side walls 1 of the machine frame, whereby the counter-roller set 9 , 10 , 11 from the applicator roller 8 or from the web running over it 12 of the material to be coated can be lifted off. Then, after depressing the operating lever 24, the counter roller 11 can be easily removed and another one inserted.

Bei diesem Ausführungsbeispiel besteht die Gegenwalze 11 aus einem leichten Kernrohr 11a, welches an beiden Enden durch Stirnwände 11b mit den Achsstummeln 14 verschlossen und von einem Mantel 11c aus einem anderen Material umgeben ist. Der Mantel 11c kann je nach Art der Beschichtungsflüssigkeit und/oder des zu beschichtenden Materials aus mehr oder weniger weichem Gummi, Kunststoff oder anderem Material bestehen. Seine Oberfläche kann glatt oder strukturiert sein. Er kann auch mehr oder weniger kürzer als das Kernrohr 11a sein, wobei sich seine Länge nach der Breite der zu beschichtenden Materialbahn oder -tafel richtet.In this embodiment, the counter roll 11 consists of a light core tube 11a , which is closed at both ends by end walls 11b with the stub axles 14 and is surrounded by a jacket 11c made of a different material. The coat 11c can, depending on the type the coating liquid and / or the material to be coated consist of more or less soft rubber, plastic or other material. Its surface can be smooth or textured. It can also be more or less shorter than the core tube 11a , its length depending on the width of the material web or sheet to be coated.

Die Gegenwalze 11 wird praktisch nicht auf Biegung beansprucht, da sie in der ganzen Länge ihres Mantels 11c unter den biegesteifen Preßwalzen 9, 10 anliegt und nur durch diese auf die über die Auftragwalze laufende Bahn des zu beschichtenden Materials niedergedrückt wird. Sie hat lediglich dem Druck der Preßwalzen 9, 10 ohne bleibende Verformung standzuhalten. Daher kann sie im Vergleich zu den Gegenwalzen in den bekannten Auftragwerken sehr viel leichter und hinsichtlich Herstellungskosten ganz erheblich billiger gebaut werden. Daher ist die Bereithaltung eines größeren Sortimentes von Gegenwalzen mit verschiedenen Oberflächen und verschiedenen Mantelbreiten auch sehr viel billiger.
Wegen des geringen Gewichtes kann das Auswechseln der Gegenwalzen mit geringem Aufwand an manueller Arbeit auch ohne technische Hilfsmittel mühelos durchgeführt werden.
The counter-roller 11 is practically not subjected to bending, since it bears under the rigid pressure rollers 9 , 10 over the entire length of its jacket 11c and is only pressed down by this onto the web of the material to be coated which runs over the application roller. It only has to withstand the pressure of the press rolls 9 , 10 without permanent deformation. Therefore, compared to the counter rolls in the known applicators, it can be built much more easily and, in terms of production costs, considerably cheaper. It is therefore much cheaper to have a larger range of counter-rollers with different surfaces and different shell widths.
Due to the low weight, the replacement of the counter rollers can be carried out effortlessly with little manual work, even without technical aids.

Claims (11)

Walzen-Auftragwerk zum Beschichten von durchlaufendem bahn- oder tafelförmigem Material mit einem in flüssigem Zustand aufzutragenden Beschichtungsmittel, wobei - im unteren Bereich zwischen zwei Seitenwänden eines Maschinengestells über einer Wanne zur Bereithaltung der aufzutragenden Beschichtungsflüssigkeit eine in diese eintauchende Schöpfwalze und darüber eine auf der Schöpfwalze abrollende Auftragwalze gelagert sind und - über der Auftragwalze wenigstens eine die zu beschichtende Materialbahn oder -tafel auf die Auftragwalze niederdrückende und auf dieser abrollende Gegenwalze auswechselbar zwischen zwei an den Seitenwänden des Maschinengestells angeordneten Führungs- und Lagerblöcken gelagert ist, deren Abstand zur Auftragwalze veränderbar ist, dadurch gekennzeichnet,
daß die Gegenwalze (11) Bestandteil eines aus drei Walzen bestehenden Gegenwalzen-Satzes ist, wobei über der Gegenwalze (11) in Rollkontakt mit dieser zwei biegesteife Preßwalzen (9, 10) in geringem Abstand und wenigstens annähernd waagerechter Ebene nebeneinander an den Führungs- und Lagerblöcken (7) gemeinsam mit der Gegenwalze (11) vertikal beweglich und mit gewünschtem Druck auf die Auftragwalze (8) einstellbar gelagert sind und wobei die Gegenwalze (11) als leichte, weniger biegesteife Walze mit einem im Vergleich mit den Preßwalzen ( 9, 10) kleineren Durchmesser ausgebildet ist und an beiden Stirnenden einen Achsstummel (14) aufweist.
Roller applicator for coating continuous sheet or sheet material with a coating agent to be applied in the liquid state, wherein - In the lower area between two side walls of a machine frame above a trough for holding the coating liquid to be applied, a scoop roller which is immersed in this and above which an application roller rolling on the scoop roller are mounted and over the applicator roller, at least one counter-roller, which presses the material web or sheet to be coated onto the applicator roller and rolls on it, is interchangeably mounted between two guide and bearing blocks arranged on the side walls of the machine frame, the distance from which can be changed from the applicator roller, characterized,
that the counter-roller ( 11 ) is part of a set of three rollers counter-roller set, with over the counter-roller ( 11 ) in rolling contact with these two rigid press rollers ( 9, 10 ) at a short distance and at least approximately horizontal level next to each other on the guide and Bearing blocks ( 7 ) are vertically movable together with the counter roller ( 11 ) and are adjustable with the desired pressure on the application roller ( 8 ), and wherein the counter roller ( 11 ) is designed as a light, less rigid roller with a smaller diameter in comparison with the press rollers ( 9, 10 ) and has an axle stub ( 14 ) on both ends.
Walzen-Auftragwerk nach Anspruch 1,
dadurch gekennzeichnet,
daß die Gegenwalze (11) zwischen senkrechten Führungselementen von zwei an den Führungs- und Lagerblöcken (7) angeordneten Halterungen gelagert ist, die jeweils aus zwei beweglich miteinander verbundenen Teilen bestehen, nämlich einem an dem benachbarten Führungs- und Lagerblock (7) befestigten Konsolteil (16) und einer an dessen freier Innenseite um eine parallel zur Gegenwalze (11) im Abstand zu dieser verlaufende Achse (17) drehbar gelagerten Einrichtung zur seitlichen Führung und zum Ausheben der Gegenwalze (11) aus ihrer Arbeitsposition.
Roller applicator according to claim 1,
characterized,
that the counter-roller ( 11 ) is mounted between vertical guide elements of two brackets arranged on the guide and bearing blocks ( 7 ), each consisting of two movably connected parts, namely a bracket part ( 7 ) fastened to the adjacent guide and bearing block ( 7 ) 16 ) and a device on its free inside about a parallel to the counter roller ( 11 ) at a distance from this axis ( 17 ) rotatably mounted for lateral guidance and for lifting the counter roller ( 11 ) from its working position.
Walzen-Auftragwerk nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß jede der an den beiden Stirnenden der Gegenwalze (11) vorgesehenen Einrichtungen zum seitlichen Führen und Ausheben der Gegenwalze (11) eine um die Achse (17) an der Innenseite des Konsolteils (16) schwenkbar gelagerte, senkrecht zur Achse (17) gerichtete Lagerplatte (18) hat, an deren der Gegenwalze (11) zugewandten Seite in geringem Abstand nebeneinander zwei parallel zur Achse der der Gegenwalze gerichtete und die Achsstummel (14) der Gegenwalze (11) untergreifende Lagerzapfen (19, 20) angeordnet sind und daß die Lagerplatte (18) als Mittelteil eines zweiarmigen, um die Achse (17) schwenkbaren Hebels ausgebildet ist, wobei der kurze Hebelarm (21) durch eine Zugfeder (22) mit einem am Konsolteil (16) befestigten, nach unten gerichteten Ausleger (23) verbunden ist und der dem kurzen Hebelarm (21) gegenüber befindliche lange Hebelarm einen Bedienungshebel (24) bildet.
Roller applicator according to claims 1 and 2,
characterized,
that each of the devices provided on the two ends of the counter-roller ( 11 ) for laterally guiding and lifting the counter-roller ( 11 ) has a bearing plate which is pivotably mounted about the axis ( 17 ) on the inside of the console part ( 16 ) and is perpendicular to the axis ( 17 ) ( 18 ), on the side facing the counter-roller ( 11 ) at a small distance next to each other two parallel to the axis of the counter-roller and the stub axles ( 14 ) of the counter-roller ( 11 ) engaging under bearing journals ( 19, 20 ) and that the bearing plate ( 18 ) is designed as a central part of a two-armed lever which can be pivoted about the axis ( 17 ), wherein the short lever arm ( 21 ) is connected by a tension spring ( 22 ) to a downward arm ( 23 ) attached to the bracket part ( 16 ) and the long lever arm opposite the short lever arm ( 21 ) forms an operating lever ( 24 ).
Walzen-Auftragwerk nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß auf den an der Lagerplatte (18) befindlichen Lagerzapfen (19, 20) handelsübliche Kugellager ( 19a, 20a) angeordnet sind, auf denen die Achsstummel (14) der Gegenwalze (11) in freier Auflage drehbar sind.
Roller applicator according to claims 1 to 3,
characterized by
that on the on-the bearing plate (18) bearing pins (19, 20) are commercially available ball bearings (19a, 20a) are arranged, on which the stub axle (14) of the counter-roller (11) are rotatable in freely supported.
Walzen-Auftragwerk nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß die Achsstummel (14) der Gegenwalze (11) in deren Stirnwänden (11b) drehbar gelagert sind und auf den Lagerzapfen (19, 20) der Lagerplatte (18) frei liegen.
Roller applicator according to claims 1 to 3,
characterized by
that the stub axles ( 14 ) of the counter-roller ( 11 ) are rotatably mounted in their end walls ( 11b ) and are exposed on the bearing journal ( 19, 20 ) of the bearing plate ( 18 ).
Walzen-Auftragwerk nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die Gegenwalze (11) aus einem leichten Kernrohr (11a) besteht, welches an beiden Enden durch Stirnwände (11b) verschlossen ist, aus denen die Achsstummel (14) herausragen, wobei auf dem Kernrohr (11a) ein Mantel (11c) aus einem anderen Material angeordnet ist.
Roller applicator according to one of claims 1 to 5,
characterized,
that the counter-roller ( 11 ) consists of a light core tube ( 11a ) which is closed at both ends by end walls ( 11b ) from which the stub axles ( 14 ) protrude, with a jacket ( 11c ) on the core tube ( 11a ) other material is arranged.
Walzen-Auftragwerk nach Anspruch 6,
dadurch gekennzeichnet,
daß der Mantel (11c) der Gegenwalze (11) aus einem mehr oder weniger weichen Werkstoff wie Gummi oder Kunststoff besteht.
Roller applicator according to claim 6,
characterized,
that the jacket ( 11c ) of the counter-roller ( 11 ) consists of a more or less soft material such as rubber or plastic.
Walzen-Auftragwerk nach Anspruch 6,
dadurch gekennzeichnet,
daß der Mantel (11c) der Gegenwalze (11) aus einem harten Material besteht.
Roller applicator according to claim 6,
characterized,
that the jacket ( 11c ) of the counter-roller ( 11 ) consists of a hard material.
Walzen-Auftragwerk nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet,
daß der Mantel (11c) der Gegenwalze (11) eine glatte Oberfläche hat.
Roller applicator according to one of claims 6 to 8,
characterized by
that the jacket ( 11c ) of the counter-roller ( 11 ) has a smooth surface.
Walzen-Auftragwerk nach einem der Ansprüch 6 bis 8,
dadurch gekennzeichnet,
daß der Mantel (11c) der Gegenwalze (11) eine strukturierte Oberfläche hat.
Roller applicator according to one of Claims 6 to 8,
characterized by
that the jacket ( 11c ) of the counter-roller ( 11 ) has a structured surface.
Walzen-Auftragwerk nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,
daß der Mantel (11c) der Gegenwalze (11) in beliebigem Maß kürzer ist, als das Kernrohr (11a).
Roller applicator according to one of claims 1 to 10,
characterized by
that the jacket ( 11c ) of the counter-roller ( 11 ) is shorter to any extent than the core tube ( 11a ).
EP91116692A 1990-10-09 1991-09-30 Rollers assembly for coating web or sheet material Expired - Lifetime EP0480285B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031946A DE4031946A1 (en) 1990-10-09 1990-10-09 ROLLER APPLICATION FOR COATING CONTINUOUS RAIL OR TABLET MATERIAL
DE4031946 1990-10-09

Publications (3)

Publication Number Publication Date
EP0480285A2 true EP0480285A2 (en) 1992-04-15
EP0480285A3 EP0480285A3 (en) 1992-05-27
EP0480285B1 EP0480285B1 (en) 1994-11-30

Family

ID=6415892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116692A Expired - Lifetime EP0480285B1 (en) 1990-10-09 1991-09-30 Rollers assembly for coating web or sheet material

Country Status (3)

Country Link
EP (1) EP0480285B1 (en)
AT (1) ATE114513T1 (en)
DE (2) DE4031946A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105562283A (en) * 2016-02-15 2016-05-11 上海和科设备制造有限公司 Flat pipe coating device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019123050B4 (en) * 2019-08-28 2021-03-18 Achenbach Buschhütten GmbH & Co. KG Commissioned work

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE272473C (en) *
FR1079761A (en) * 1951-06-19 1954-12-02 Nordisk Aluminium Ind As Machine for applying surface coatings to belts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE272473C (en) *
FR1079761A (en) * 1951-06-19 1954-12-02 Nordisk Aluminium Ind As Machine for applying surface coatings to belts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105562283A (en) * 2016-02-15 2016-05-11 上海和科设备制造有限公司 Flat pipe coating device

Also Published As

Publication number Publication date
DE59103674D1 (en) 1995-01-12
EP0480285A3 (en) 1992-05-27
EP0480285B1 (en) 1994-11-30
ATE114513T1 (en) 1994-12-15
DE4031946A1 (en) 1992-04-16

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