EP0264396B1 - Device for applying small or extremely small quantities of flowable substances - Google Patents

Device for applying small or extremely small quantities of flowable substances Download PDF

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Publication number
EP0264396B1
EP0264396B1 EP87902310A EP87902310A EP0264396B1 EP 0264396 B1 EP0264396 B1 EP 0264396B1 EP 87902310 A EP87902310 A EP 87902310A EP 87902310 A EP87902310 A EP 87902310A EP 0264396 B1 EP0264396 B1 EP 0264396B1
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EP
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Prior art keywords
cylinder
magnetic
coating
dosing
trough
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EP87902310A
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German (de)
French (fr)
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EP0264396A1 (en
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Johannes Zimmer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers

Definitions

  • the invention relates to a device for applying small amounts of flowable substances to a sheet-like support, e.g. a sheet-like material web, by means of a magnetically pressed application roller, to which a device for supplying the substance to be applied is assigned.
  • the application roller A device for supplying the substance to be applied is associated with better support of the application roller on the one hand on a magnetic roller or on a sliding table and on the other hand also on the metering roller.
  • the device for supplying the substance to be applied for example a metering roller, has to convey the substance to be applied from bottom to top, which on the one hand increases the uniformity of the application and on the other hand the application amount per unit area can be better controlled.
  • the device for supplying the substance to be applied is a trough
  • the trough area which is open for filling can be freely viewed and is freely accessible. If you give this trough the function of a doctor blade at the same time, there is only an extremely minimal fluid requirement, about 1 liter per meter of length, necessary for filling the trough, which is ideal for patterning and small-scale production, and substances that decompose easily and have a short service life can also be used.
  • Another advantage of the invention is that when two rollers are arranged on the side, the so-called metering roller can be dimensioned larger, since this roller can rest and thus relieve the weight.
  • an axial drive can be used with which a differential speed can be achieved. This results in an advance of the application roller in particular. With such an advance, there is an additional quantity control, namely an increase in quantity. A reduction in quantity is possible in the event of lag.
  • the application and metering rollers are self-cleaning when they advance, since the rollers are slowly wiped off.
  • FIG. 1 shows an embodiment of the invention.
  • Fig. 2 shows another embodiment with a special storage of the metering roller.
  • Figure 3 is a single roller embodiment.
  • Fig. 4 shows an embodiment of the invention, in which the device generating the magnetic contact force is designed as a magnetic bar. 5 is another embodiment.
  • FIG. 1 Another embodiment is shown in FIG.
  • the axes of the metering roller 5 and the application roller 4 lie in a different plane than the longitudinal axis 9 of the magnet system 2.
  • the trough 7 in this embodiment has a recess 10 in which the metering roller 5 is arranged.
  • This recess 10 has a diameter which is slightly larger than the diameter of the metering roller 5, so that the metering roller 5 floats in the bearing shell formed by the recess 10 and during operation, i. H. when they are twisted through the wall.
  • Both the application roller 4 and the metering roller 5 have no axle bearings, so they are freely movable, and the three existing rollers, i. H. Magnetic roller 1, applicator roller 4 and metering roller 5 support each other.
  • the magnet system 2 is arranged approximately 45 ° from the vertical and can be pivotable about the magnet roller axis, as a result of which the inclined forces and also the force distribution on both rollers 4, 5 can be changed.
  • the wall of the recess 10 can have a surface structuring, depending on the requirements, it can be rasterized, edged, axially grooved or rough, but also smooth rollers can be used as metering rollers 5. It is possible to work almost completely free of air. If coating is desired, the metering roller 5 can be smooth, whereas the application roller 4 is structured. After the application there may still be a smoothing knife.
  • Fig. 2 the web 11 is also shown, which is first guided over a slide bar 12, which may spread the web 11, and only then passes between the application roller 4 and the magnetic roller 1.
  • both the applicator roller 4 and the metering roller 5 are made of magnetizable material.
  • FIG. 3 shows an embodiment in which the metering and application roller are replaced by a single roller 13.
  • This roller 13 lies in the recess 10 of the trough 7 and its diameter can be adapted to the respective needs and it can also be provided with any surface.
  • the magnet system 2 also serves here, among other things, to press the roller 13 into the recess 10.
  • a zone for a lint brush or suction can be provided above the roller 13. It is expedient if the trough 7 can be moved with respect to the magnetic roller 1, so as to enable automatic adjustment and also to compensate for irregularities in the web 11.
  • An additional drive can be present both in the embodiment of the invention with metering and application roller and in the embodiment with only one roller, so that the roller serving as the application roller leads.
  • the peripheral speed can be regulated very precisely and you can also control the amount of substance applied in this way.
  • the device generating the magnetic contact pressure does not have to be designed as a magnetic roller, but it is also possible to provide a magnetic bar. This is shown in FIG. 4. It should be pointed out immediately that the exemplary embodiments according to FIGS. 2 and 3 can also be provided with a magnetic bar instead of the magnetic roller 1.
  • Such magnetic bars 14 are known per se. They generally have a table surface 15 over which the web 11 is guided.
  • the magnet system 2 inserted into the magnetic bar 14, generally an electromagnet, which has a magnet coil and an iron core, ends in the table surface 15 or in its immediate vicinity. 4, the axis 16 of the magnet system is arranged at an angle to the vertical 3.
  • the application roller 4 is pressed onto the web 11 and the substance 6 to be applied is fed to it via the metering roller 5.
  • This substance to be applied is in turn located in a trough which has a surface 8 directed towards the table surface 15.
  • the magnetic bar 14 is designed to be displaceable in order to be able to change the relative position to the trough and thus to the application roller 4, or to arrange the magnetic bar 14 so as to be pivotable, likewise in order to enable a change in position relative to the application roller 4.
  • FIG. 5 Another embodiment of the invention is shown in FIG. 5.
  • a trough 7 is provided with the flowable substance 6 to be applied to a web 11.
  • the metering and application roller is again formed by a single roller 13, whereby at most an additional friction drive can be provided for the roller.
  • the roller can either be mounted by means of the stub axle 21 or can rest on the floor 19 which carries ribs 20, so that metering can also take place on this floor.
  • the trough 7 there is also a strip of material 17 which projects beyond the upper edge of the trough and carries a roller 18.
  • the web 11 slides over this roller 18 and above the roller 18 an additional storage space is defined which is defined by the roller 13 and the web 11 and is filled in a defined manner.
  • the material web 11 in turn rests on a counter surface to the roller 13.
  • the counter surface can be given by a magnetic roller 1 with a magnetic system 2 or by a magnetic bar.
  • the axis of the magnet system 2 in turn encloses an angle with the vertical and is also offset in relation to the axis of rotation of the roller 13 in the illustration in FIG. 5.
  • the material strip 17 and / or the body carrying the sliding surface 18 for the web 11 can optionally also consist of a magnetizable material and be attracted to the magnet system 2.
  • the material strip 17 can have a pre-tension, which then acts as a counterforce to the applied magnetic force. In this way, the storage space can be precisely defined within given limits.

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  • Coating Apparatus (AREA)

Abstract

In a device for applying flowable substances (6) to a flat support by means of a magnetically applied coating cylinder (4), the mechanism (1, 14) producing the magnetic application force, as well as the coating cylinder (4), are arranged obliquely in relation to the vertical direction (3). A system (5) for feeding the substance (6) to be applied is provided for the coating cylinder (4).

Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen geringer Mengen fließfähiger Substanzen auf einen, an einer Stützfläche anliegenden, flächenförmigen Träger, z.B. eine flächenförmige Materialbahn, mittels einer magnetisch anpreßbaren Auftragswalze, der eine Einrichtung zum Zuführen der aufzutragenden Substanz zugeordnet ist.The invention relates to a device for applying small amounts of flowable substances to a sheet-like support, e.g. a sheet-like material web, by means of a magnetically pressed application roller, to which a device for supplying the substance to be applied is assigned.

Das Auftragen geringer oder geringster Mengen von fließfähigen Medien auf einem flächenförmigen Träger stellt ein großes Problem dar, wenn die Auftragung völlig gleichmäßig sein soll. Einerseits muß über die gesamte Warenbreite je Flächeneinheit die genau gleiche Menge an Auftragsmedium zugeführt werden und andererseits muß auch der Anpreßdruck der Warenbahn an eine Unterstützungsfläche über die gesamte Warenbreite gleich sein. Es ist bereits bekannt, zum Bedrucken oder Beschichten von Warenbahnen Magnetrakeln zu verwenden, d.h. also Rollrakeln, die magnetisch an die Warenbahn angepreßt werden. Bei diesen Magnetrakeln wird aus einer Vorratsmenge des aufzutragenden Mediums vor der Magnetrakel ein Flüssigkeitskeil gebildet, aus dem die benötigen Mengen an Substanz entnommen werden. Es ist klar, daß es damit nicht möglich ist, geringe oder geringste Mengen eines Auftragsmediums gleichmäßig auf einem flächigen Träger aufzubringen. Es ist auch bereits bekannt, am tiefsten Punkt der Magnetwalze einen Trog mit einer Auftragswalze vorzusehen. Ein derartiger, unter der Magnetwalze befindlicher Trog ist jedoch sehr schwer zugänglich und nicht einschaubar. Ferner ist aus der AT-B-379 330 eine Anordnung zum gleichmäßigen Aufbringen fließfähiger Medien auf eine Warenbahn bekannt, bei der eine magnetisch angepreßte Auftragswalze unter einem rechten Winkel zur Vertikalen vorgesehen ist. Dies erschwert die Steuerung der aufzutragenden Menge an fließfähigem Medium und um diese Schwierigkeit zu beseitigen, werden erfindungsgemäß die Maßnahmen gemäß dem Kennzeichen des Anspruches 1 vorgeschlagen.The application of small or very small amounts of flowable media on a sheet-like carrier is a major problem if the application is to be completely uniform. On the one hand, the exact same amount of application medium must be supplied over the entire width of the goods per unit area, and on the other hand, the contact pressure of the material web on a support surface must be the same over the entire width of the goods. It is already known to use magnetic squeegees for printing or coating webs, i.e. so doctor blades, which are pressed magnetically onto the web. In the case of these magnetic doctor blades, a liquid wedge is formed from a supply quantity of the medium to be applied in front of the magnetic doctor blade, from which the required amounts of substance are removed. It is clear that it is not possible to apply small or very small amounts of an application medium evenly to a flat carrier. It is also already known to provide a trough with an application roller at the lowest point of the magnetic roller. However, such a trough located under the magnetic roller is very difficult to access and cannot be seen. Furthermore, from AT-B-379 330 an arrangement for the uniform application of flowable media to a web is known, in which a magnetically pressed application roller is provided at a right angle to the vertical. This makes it difficult to control the amount of flowable medium to be applied and, in order to eliminate this difficulty, the measures according to the invention are proposed according to the characterizing part of claim 1.

Dadurch, daß die Achse der die magnetische Anpressungskraft erzeugenden Einrichtung mit der Vertikalebene einen nach unten offenen Winkel einschließt, wird die Magnetkraft als Hubkraft auf die Auftragswalze aufgepreßt und da zusätzlich die Ebene durch die Achse der Auftragswalze und der Berührungslinie mit dem Träger ebenfalls einen nach unten offenen Winkel mit der Vertikalebene bildet, wobei der Auftragswalse eine Einrichtung zum Zuführen der aufzutragenden Substanz zugeordnet ist, ergibt sich eine bessere Abstützung der Auftragswalze einerseits an einer Magnetwalze bzw. an einem Gleittisch und andererseits auch der Dosierwlaze. Überdies muß der Einrichtung zum Zuführen der aufzutragenden Substanz, z.B. einer Dosierwalze, die aufzutragende Substanz von unten nach oben gefördert werden, wodurch einerseits die Gleichmäßigkeit der Auftragung erhöht wird und andererseits die Auftragungsmenge pro Flächeneinheit besser zu steuern ist.Characterized in that the axis of the device generating the magnetic contact force forms an angle which is open downwards with the vertical plane, the magnetic force is pressed onto the application roller as a lifting force and since the plane through the axis of the application roller and the line of contact with the carrier is also downward forms an open angle with the vertical plane, the application roller A device for supplying the substance to be applied is associated with better support of the application roller on the one hand on a magnetic roller or on a sliding table and on the other hand also on the metering roller. In addition, the device for supplying the substance to be applied, for example a metering roller, has to convey the substance to be applied from bottom to top, which on the one hand increases the uniformity of the application and on the other hand the application amount per unit area can be better controlled.

Überdies erreicht man, daß dann, wenn die Einrichtung zum Zuführen der aufzutragenden Substanz ein Trog ist, der für die Einfüllung offene Trogbereich frei einschaubar und frei zugänglich ist. Wenn man diesem Trog gleichzeitig die Funktion einer Abstreichrakel gibt, so ist nur ein äußerst minimaler Flüssigkeitsbedarf, etwa 1 Liter pro Längenmeter, für die Füllung des Troges notwendig, was ideal für die Musterung und Kleinstproduktion ist, und es können auch Substanzen verwendet werden, die sich leicht zersetzen und nur eine geringe Standzeit haben. Ein weiterer Vorteil der Erfindung liegt darin, daß bei seitlicher Anordnung von zwei Walzen die sogenannte Dosierwalze größer dimensioniert werden kann, da diese Walze aufliegen kann und so eine Gewichtsentlastung gegeben ist.Moreover, if the device for supplying the substance to be applied is a trough, the trough area which is open for filling can be freely viewed and is freely accessible. If you give this trough the function of a doctor blade at the same time, there is only an extremely minimal fluid requirement, about 1 liter per meter of length, necessary for filling the trough, which is ideal for patterning and small-scale production, and substances that decompose easily and have a short service life can also be used. Another advantage of the invention is that when two rollers are arranged on the side, the so-called metering roller can be dimensioned larger, since this roller can rest and thus relieve the weight.

Verwendet man eine magnetisch angepreßte Auftrags- und/oder Dosiewalze und treibt diese zusätzlich an, so kann man zusätzlich zum magnetisch bewirkten Umfangsantrieb noch einen Axialantrieb einsetzen, mit dem eine Differenzgeschwindigkeit erzielt werden kann. Dadurch ergibt sich insbesondere eine Voreilung der Auftragswalze. Bei einer derartigen Voreilung ergibt sich eine zusätzliche Mengenregelung,und zwar eine Mengenvergrößerung. Bei Nacheilung ist eine Mengenverringerung möglich. Zusätzlich erfolgt bei Voreilung eine Selbstreinigung der Auftrags- und Dosierwalze, da die Walzen langsam abgestreift werden.If one uses a magnetically pressed application and / or metering roller and drives it additionally, then in addition to the magnetically effected peripheral drive, an axial drive can be used with which a differential speed can be achieved. This results in an advance of the application roller in particular. With such an advance, there is an additional quantity control, namely an increase in quantity. A reduction in quantity is possible in the event of lag. In addition, the application and metering rollers are self-cleaning when they advance, since the rollers are slowly wiped off.

Die Erfindung wird anhand der Zeichnungen beispielsweise beschrieben. Fig. 1 zeigt eine Ausführungsform der Erfindung. Fig. 2 zeigt eine andere Ausführungsform mit einer speziellen Lagerung der Dosierwalze. Fig. 3 ist eine Ausführungsform mit einer einzigen Walze. Fig. 4 zeigt ein Ausführungsbeispiel der Erfindung, bei dem die die magnetische Anpressungskraft erzeugende Einrichtung als Magnetbalken ausgebildet ist. Fig. 5 ist eine weitere Ausführungsform.The invention is described for example with reference to the drawings. 1 shows an embodiment of the invention. Fig. 2 shows another embodiment with a special storage of the metering roller. Figure 3 is a single roller embodiment. Fig. 4 shows an embodiment of the invention, in which the device generating the magnetic contact force is designed as a magnetic bar. 5 is another embodiment.

Gemäß Fig. 1 befindet sich in einer Magnetwalze 1 ein Magnetsystem 2, das gegenüber der Vertikalen 3 versetzt ist. Ebenfalls versetzt gegenüber der Vertikalen 3 liegt eine Auftragswalze 4 an der Magnetwalze 1 an. Dieser Auftragswalze 4 ist eine Dosierwalze 5 zugeordnet, die in die aufzutragende Substanz 6 eintaucht und diese der Auftragswalze 4 zuführt.Die Substanz 6 befindet sich in einem Trog 7, der eine gegen die Magnetwalze 1 gerichtete Fläche 8 aufweist, auf der die Dosierwalze 5 aufliegt.1, there is a magnet system 2 in a magnetic roller 1, which is offset with respect to the vertical 3. Likewise offset from the vertical 3, an application roller 4 bears against the magnetic roller 1. This applicator roller 4 is assigned a metering roller 5, which dips into the substance 6 to be applied and feeds it to the applicator roller 4. The substance 6 is located in a trough 7, which has a surface 8 directed against the magnetic roller 1, on which the metering roller 5 rests .

Dadurch ist es möglich, den Durchmesser der Dosierwalze zu vergrößern, da das Magnetsystem 2 nicht das Gewicht von Auftragswalze 4 und Dosierwalze 5 tragen muß, sondern durch die Fläche 8 eine Gewichtsentlastung gegeben ist.This makes it possible to increase the diameter of the metering roller, since the magnet system 2 does not have to bear the weight of the application roller 4 and metering roller 5, but the surface 8 relieves the weight.

In Fig. 2 ist eine andere Ausführungsform dargestellt. Hier liegen die Achsen der Dosierwalze 5 und der Auftragswalze 4 in einer anderen Ebene als die Längsachse 9 des Magnetsystemes 2. Der Trog 7 weist bei diesem Ausführungsbeispiel eine Ausnehmung 10 auf, in der die Dosierwalze 5 angeordnet ist. Diese Ausnehmung 10 hat einen Durchmesser, der geringfügig größer ist als der Durchmesser der Dosierwalze 5, so daß die Dosierwalze 5 in der durch die Ausnehmung 10 gebildeten Lagerschale schwimmt und während des Betriebes, d. h. bei ihrer Verdrehung durch die Wand, abgestreift wird.Another embodiment is shown in FIG. Here, the axes of the metering roller 5 and the application roller 4 lie in a different plane than the longitudinal axis 9 of the magnet system 2. The trough 7 in this embodiment has a recess 10 in which the metering roller 5 is arranged. This recess 10 has a diameter which is slightly larger than the diameter of the metering roller 5, so that the metering roller 5 floats in the bearing shell formed by the recess 10 and during operation, i. H. when they are twisted through the wall.

Sowohl die Auftragswalze 4 als auch die Dosierwalze 5 besitzen keine Achslager, sind also frei beweglich, und die drei vorhandenen Walzen, d. h. Magnetwalze 1, Auftragswalze 4 und Dosierwalze 5, stützen sich gegenseitig ab. Das Magnetsystem 2 ist etwa 45° gegen die Vertikale angeordnet und kann um die Magnetwalzenachse schwenkbar sein, wodurch die Schrägkräfte und auche die Kraftaufteilung auf beide Walzen 4, 5 verändert werden können. Die Wandung der Ausnehmung 10 kann eine Oberflächenstrukturierung aufweisen, und zwar je nach Bedard kann sie gerastert, randriert, axial gerillt oder rauh sein, aber auch glatte Walzen Können als Dosierwalze 5 eingesetzt werden. Es ist möglich, nahezu vollständig luftfrei zu arbeiten. Will mach Beschichten, so kann die Dosierwalze 5 glatt sein, wohingegen die Auftragswalze 4 strukturiert ist. Nach der Auftragung kann dam noch eine Glättrakel vorhanden sein.Both the application roller 4 and the metering roller 5 have no axle bearings, so they are freely movable, and the three existing rollers, i. H. Magnetic roller 1, applicator roller 4 and metering roller 5 support each other. The magnet system 2 is arranged approximately 45 ° from the vertical and can be pivotable about the magnet roller axis, as a result of which the inclined forces and also the force distribution on both rollers 4, 5 can be changed. The wall of the recess 10 can have a surface structuring, depending on the requirements, it can be rasterized, edged, axially grooved or rough, but also smooth rollers can be used as metering rollers 5. It is possible to work almost completely free of air. If coating is desired, the metering roller 5 can be smooth, whereas the application roller 4 is structured. After the application there may still be a smoothing knife.

In Fig. 2 ist noch die Warenbahn 11 dargestellt, die zuerst über eine Gleitleiste 12, welche gegebenenfalls die Warenbahn 11 ausbreitet, geführt ist und dann erst zwischen der Auftragswalze 4 und der Magnetwalze 1 hindurchtritt.In Fig. 2 the web 11 is also shown, which is first guided over a slide bar 12, which may spread the web 11, and only then passes between the application roller 4 and the magnetic roller 1.

Es ist auch möglich, die Auftragswalze 4 mit einer nachgiebigen Oberfläche, z.B. aus Weichgummi, zu versehen, und sowohl die Auftragswalze 4 als auch die Dosierwalze 5 bestehen aus magnetisierbarem Material.It is also possible to apply the application roller 4 with a resilient surface, e.g. made of soft rubber, and both the applicator roller 4 and the metering roller 5 are made of magnetizable material.

Fig. 3 stellt eine Ausführungsform dar, bei der die Dosier- und Auftragswalze durch eine einzige Walze 13 ersetzt sind. Diese Walze 13 liegt in der Ausnehmung 10 des Troges 7 und ihr Durchmesser kann den jeweiligen Bedürfnissen angepaßt werden und sie kann auch mit einer beliebigen Oberfläche versehen sein. Das Magnetsystem 2 dient hier unter anderem auch dazu, die Walze 13 in die Ausnehmung 10 zu pressen. Oberhalb der Walze 13 kann eine Zone für eine Flusenbürste bzw. Absaugung vorgesehen sein. Es ist güngstig, wenn der Trog 7 gegenüber der Magnetwalze 1 bewegbar ist, um so eine selbsttätige Einstellung zu ermöglichen und auch Unregelmäßigkeiten in der Warenbahn 11 auszugleichen.FIG. 3 shows an embodiment in which the metering and application roller are replaced by a single roller 13. This roller 13 lies in the recess 10 of the trough 7 and its diameter can be adapted to the respective needs and it can also be provided with any surface. The magnet system 2 also serves here, among other things, to press the roller 13 into the recess 10. A zone for a lint brush or suction can be provided above the roller 13. It is expedient if the trough 7 can be moved with respect to the magnetic roller 1, so as to enable automatic adjustment and also to compensate for irregularities in the web 11.

Sowohl bei der Ausführungsform der Erfindung mit Dosier- und Auftragswalze als auch bei der Ausführungsform mit nur einer Walze kann ein zusätzlicher Antrieb vorhanden sein, so daß die als Auftragswalze dienende Walze voreilt. Die Umfangsgeschwindigkeit läßt sich sehr genau regulieren und man kann auf diese Weise auch die aufgetragenen Substanzmengen steuern.An additional drive can be present both in the embodiment of the invention with metering and application roller and in the embodiment with only one roller, so that the roller serving as the application roller leads. The peripheral speed can be regulated very precisely and you can also control the amount of substance applied in this way.

Durch den zusätzlichen Axialantrieb erreicht man eine Differenzgeschwindigkeit der Auftragswalze zu den anderen Walzen, wodurch nicht nur ein Voreilen sondern auch ein Nacheilen gegeben sein kann. Voreilen bedeutet Vergrößerung der Substanzmenge und Nacheilen Verringerung der Subsranzmenge. Wichtig ist auch die Selbstreinigung beim Voreilen, und zwar insbesondere bei Auftragung auf Trägern, die eine Atrieb aufweisen, so z.B. Glasfasern. Das Voreilen kann durch Wahl der Geschwindigkeiten genau gewählt werden. In diesem Falle sollen die Auftragswalzen möglichst glatt sein.Due to the additional axial drive, a differential speed of the application roller to the other rollers is achieved, which means that not only leading but also lagging can occur. Leading means increasing the amount of substance and lagging means reducing the amount of substance. Also important is self-cleaning when leading, especially when applied to carriers that have a drive, such as glass fibers. The advance can be selected precisely by selecting the speeds. In this case, the application rollers should be as smooth as possible.

Die die magnetische Anpressungskraft erzeugende Einrichtung muß nicht als Magnetwalze ausgebildet sein, sondern es ist auch möglich, einen Magnetbalken vorzusehen. Dies ist in Fig. 4 dargestellt. Es sei gleich darauf hingewiesen, daß auch die Ausführungsbeispiele gemäß den Fig. 2 und 3 anstelle der Magnetwalze 1 mit einem Magnetbalkenversehen werden können. Derartige Magnetbalken 14 sind an und für sich bekannt. Sie besitzen im allgemeinen eine Tischfläche 15, über die die Warenbahn 11 geführt wird. In der Tischfläche 15 oder in ihrer unmittelbaren Nähe endet das in den Magnetbalken 14 eingesetzte Magnetsystem 2, im allgemeinen ein Elektromagnet, der eine Magnetspule und einen Eisenkern aufweist. Beim Ausführungsbeispiel gemäß Fig. 4 ist die Achse 16 des Magnetsystems in einem Winkel zur Vertikalen 3 angeordnet. Im Bereich der Tischfläche 15 wird die Auftragswalze 4 an die Warenbahn 11 angepreßt und es wird ihr über die Dosierwalze 5 die aufzutragende Substanz 6 zugeführt. Diese aufzutragende Substanz befindet sich wiederum in einem Trog, der eine gegen die Tischfläche 15 gerichtete Fläche 8 aufweist. Es besteht die Mlöglichkeit, den Magnetbalken 14 verschieblich auszubilden, um die relative Lage zum Trog und somit zur Auftragswalse 4 ändern zu können, oder aber auch den Magnetbalken 14 verschwenkbar anzuordnen, ebenfalls um eine Lageveränderung gegenüber der Auftragswalze 4 zu ermöglichen.The device generating the magnetic contact pressure does not have to be designed as a magnetic roller, but it is also possible to provide a magnetic bar. This is shown in FIG. 4. It should be pointed out immediately that the exemplary embodiments according to FIGS. 2 and 3 can also be provided with a magnetic bar instead of the magnetic roller 1. Such magnetic bars 14 are known per se. They generally have a table surface 15 over which the web 11 is guided. The magnet system 2 inserted into the magnetic bar 14, generally an electromagnet, which has a magnet coil and an iron core, ends in the table surface 15 or in its immediate vicinity. 4, the axis 16 of the magnet system is arranged at an angle to the vertical 3. In the area of the table surface 15, the application roller 4 is pressed onto the web 11 and the substance 6 to be applied is fed to it via the metering roller 5. This substance to be applied is in turn located in a trough which has a surface 8 directed towards the table surface 15. There is the possibility of designing the magnetic bar 14 to be displaceable in order to be able to change the relative position to the trough and thus to the application roller 4, or to arrange the magnetic bar 14 so as to be pivotable, likewise in order to enable a change in position relative to the application roller 4.

Eine weitere Ausführungsform der Erfindung ist in Fig. 5 dargestellt. Hier ist wiederum ein Trog 7 mit der auf eine Warenbahn 11 aufzutragenden fließfähigen Substanz 6 vorgesehen. Die Dosier- und Aüftragswalze wird wieder durch eine einzige Walze 13 gebildet, wobei allenfalls ein zusätzlicher Friktionsantrieb für die Walze vorgesehen sein kann. Die Walze kann entweder mittels des Achsstummels 21 gelagert sein oder aber auf dem Boden 19 aufliegen, der Rippen 20 trägt, so daß an diesem Boden ebenfalls eine Dosierung erfolgen kann. Im Trog 7 ist auch ein Materialstreifen 17 gelagert, der über den oberen Rand des Troges hinausragt und eine Rolle 18 trägt. Die Warenbahn 11 gleitet über diese Rolle 18 und es wird oberhalb der Rolle 18 ein durch die Walze 13 und die Warenbahn 11 begrenzter zusätzlicher Stauraum gebildet, der definiert gefüllt ist. Die Warenbahn 11 liegt wiederum an einer Gegenfläche zur Walze 13 an. Die Gegenfläche kann durch eine Magnetwalze 1 mit einem Magnetsystem 2 oder durch einen Magnetbalken gegeben sein. Die Achse des Magnetsystems 2 schließt wiederum mit der Vertikalen einen Winkel ein und ist bei der Darstellung in Fig. 5 auch gegenüber der Drehachse der Walze 13 versetzt.Another embodiment of the invention is shown in FIG. 5. Here, in turn, a trough 7 is provided with the flowable substance 6 to be applied to a web 11. The metering and application roller is again formed by a single roller 13, whereby at most an additional friction drive can be provided for the roller. The roller can either be mounted by means of the stub axle 21 or can rest on the floor 19 which carries ribs 20, so that metering can also take place on this floor. In the trough 7 there is also a strip of material 17 which projects beyond the upper edge of the trough and carries a roller 18. The web 11 slides over this roller 18 and above the roller 18 an additional storage space is defined which is defined by the roller 13 and the web 11 and is filled in a defined manner. The material web 11 in turn rests on a counter surface to the roller 13. The counter surface can be given by a magnetic roller 1 with a magnetic system 2 or by a magnetic bar. The axis of the magnet system 2 in turn encloses an angle with the vertical and is also offset in relation to the axis of rotation of the roller 13 in the illustration in FIG. 5.

Der Materialstreifen 17 und/oder der die Gleitfläche 18 für die Warenbahn 11 tragende Körper können gegebenenfalls auch aus einem magnetisierbarem Material bestehen und vom Magnetsystem 2 angezogen werden. Dabei kann der Materialstreifen 17 eine Vorspannung aufweisen, die dann als Gegenkraft zu der aufgebrachten Magnetkraft wirkt. Auf diese Weise läßt sich der Stauraum innerhalb gegebener Grenzen genau festlegen.The material strip 17 and / or the body carrying the sliding surface 18 for the web 11 can optionally also consist of a magnetizable material and be attracted to the magnet system 2. The material strip 17 can have a pre-tension, which then acts as a counterforce to the applied magnetic force. In this way, the storage space can be precisely defined within given limits.

Claims (17)

1. Apparatus for applying small quantities of flowable substances to a flat support (11), for example a flat material web, resting against a support surface (1, 14), by means of a magnetically applied coating cylinder (4, 13), with which a device (5, 10) for supplying the substance to be applied is associated, characterised in that disposed on the side of the support surface (1, 14) remote from the coating cylinder (4, 13) is a device (2) (solenoid) producing a magnetic application force, whereof the axis (9, 16) encloses with the vertical plane (3) an angle which is open on the under side and the plane through the axis of the coating cylinder (4, 13) and the line of contact with the support (11) likewise forms with the vertical plane (3) an angle which is open on the under side.
2. Apparatus according to Claim 1, characterised in that the device (2) producing the magnetic application force is in the form of a beam and is provided with a sliding surface, against which the coating cylinder (4, 13) bears.
3. Apparatus according to one of the preceding Claims, characterised in that the support surface (1) is a magnetic cylinder and that the coating cylinder (4, 13) acts in the lower half of the magnetic cylinder (1), preferably at an angle of 45° with respect to the vertical.
4. Apparatus according to Claim 3, characterised in that with the axis of the dosing cylinder, the axis of the magnetic cylinder forms a plane which is different from that plane in which the axes of the coating cylinder (4, 13) and of the magnetic cylinder (1) lie.
5. Apparatus according to one of the preceding Claims, characterised in that both the dosing cylinder (5, 10) as well as the coating cylinder (4, 13) consist of magnetizable material.
6. Apparatus according to one of Claims 3 to 5, characterised in that provided in a trough (7) is a surface (8) extending obliquely with respect to the magnetic cylinder, on which surface the dosing cylinder (5, 10) or the coating cylinder (4, 13) rests.
7. Apparatus according to Claim 6, characterised in that the trough (7) comprises a recess, which overlaps the dosing cylinder (5, 10) or the coating cylinder (4, 13) in the shape of a circular cylinder and has a diameter which is slightly greater than the diameter of the dosing cylinder or coating cylinder.
8. Apparatus according to one of the preceding Claims, characterised in that with the presence of a coating cylinder and dosing cylinder, the diameter of the dosing cylinder (5, 10) can be chosen to be greater than the diameter of the coating cylinder (4, 13).
9. Apparatus according to one of the preceding Claims, characterised in that both the dosing cylinder as well as the coating cylinder are arranged to move freely without axle bearings.
10. Apparatus according to one of Claims 6 to 9, characterised in that the inner surface of the recess in the trough (7) is fluted.
11. Apparatus according to one of the preceding Claims, characterised in that the dosing cylinder (5, 10) has a surface structure, i.e. is embossed, knurled, axially ribbed etc..
12. Apparatus according to one of Claims 3 to 11, characterised in that either one or two cylinders is/are arranged laterally with respect to the magnetic cylinder (1), preferably in the lower lateral quarter, and that the cylinder or one of the cylinders is held in a sliding mounting or bears tangentially against a sliding surface, due to which a dosing function is achieved.
13. Apparatus according to one of Claims 6 to 12, characterised in that the trough (7) is movable with respect to the magnetic cylinder (1).
14. Apparatus according to one of Claims 6 to 13, characterised in that the trough (7) is tiltable with respect to the magnetic cylinder (1).
15. Apparatus according to one of the preceding Claims, characterised in that the magnetically applied coating and/or dosing cylinder additionally comprises a drive, so that due to the magnetically operated peripheral drive and the drive by way of the axle, a differential speed can be achieved, in particular a lead of the coating cylinder.
16. Apparatus according to one of Claims 6 to 15, characterised in that mounted on the trough (7) for the substance to be applied is a material strip, which comprises a sliding surface for the flat support, a storage chamber which is filled in a defined manner being formed between this support for the sliding surface and the dosing cylinder.
17. Apparatus according to one of Claims 6 to 16, characterised in that provided in the trough (7) is a base plate with ribs or grooves, on which the coating cylinder or the dosing cylinder rests.
EP87902310A 1986-04-30 1987-04-29 Device for applying small or extremely small quantities of flowable substances Expired - Lifetime EP0264396B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0117886A AT386761B (en) 1986-04-30 1986-04-30 DEVICE FOR APPLYING LOW OR LOWEST AMOUNTS OF FLOWABLE SUBSTANCES
AT1178/86 1986-04-30

Publications (2)

Publication Number Publication Date
EP0264396A1 EP0264396A1 (en) 1988-04-27
EP0264396B1 true EP0264396B1 (en) 1991-06-26

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ID=3508297

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EP87902310A Expired - Lifetime EP0264396B1 (en) 1986-04-30 1987-04-29 Device for applying small or extremely small quantities of flowable substances

Country Status (5)

Country Link
US (1) US4892057A (en)
EP (1) EP0264396B1 (en)
AT (1) AT386761B (en)
DE (1) DE8706186U1 (en)
WO (1) WO1987006504A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032318A1 (en) * 1990-05-15 1991-11-21 Windmoeller & Hoelscher DEVICE FOR APPLYING LIQUID MEDIA ON A RAILWAY
US5303440A (en) * 1990-08-16 1994-04-19 Johannes Zimmer Process for applying, impressing or removing liquids or substances
AT394665B (en) * 1990-09-25 1992-05-25 Zimmer Johannes MULTIPURPOSE MACHINING DEVICE
AT401622B (en) * 1991-09-23 1996-10-25 Johannes Zimmer DEVICE FOR APPLYING A FLOWABLE VISCOSE SUBSTANCE
DE9206355U1 (en) * 1992-05-12 1992-08-06 J.M. Voith Gmbh, 7920 Heidenheim Device for coating running webs of paper or cardboard
US5506653A (en) * 1993-04-14 1996-04-09 Spillane; John D. 58 second color print processor
US5665163A (en) * 1995-08-22 1997-09-09 Beloit Technologies, Inc. Film applicator with entrained air removal and surface control
DE20010388U1 (en) † 2000-06-09 2001-10-11 Timatec Maschinen Und Anlagenbau Gmbh, Velden Device for applying substances to sheet material
DE102004039732A1 (en) * 2004-08-17 2006-02-23 Man Roland Druckmaschinen Ag Color film coating device for use in printing unit of rotary printing press, has roll coater whose supply and differential speed between backing roller and coater are controlled based on magnetic field strength of magnet within roller
JP2015205261A (en) * 2014-04-23 2015-11-19 Ｂｅｌｌｍａｔｉｃ株式会社 Coating system

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO1987001308A1 (en) * 1985-08-30 1987-03-12 Johannes Zimmer Device for applying and dosing of fluid media to a web or a cylinder

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Publication number Priority date Publication date Assignee Title
DE1940665C3 (en) * 1969-08-09 1982-10-21 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Device for roller coating of metal strip with paints and liquid plastics
AT315800B (en) * 1973-03-30 1974-06-10 Zimmer Johannes Round stencil screen printing machine
AT379330B (en) * 1984-03-12 1985-12-27 Johannes Zimmer ARRANGEMENT FOR APPLYING FLOWABLE MEDIA ON A TRACK

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
WO1987001308A1 (en) * 1985-08-30 1987-03-12 Johannes Zimmer Device for applying and dosing of fluid media to a web or a cylinder

Also Published As

Publication number Publication date
WO1987006504A1 (en) 1987-11-05
EP0264396A1 (en) 1988-04-27
US4892057A (en) 1990-01-09
DE8706186U1 (en) 1987-08-27
ATA117886A (en) 1988-03-15
AT386761B (en) 1988-10-10

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