EP0534931A1 - Device for applying a liquid viscous substance - Google Patents

Device for applying a liquid viscous substance Download PDF

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Publication number
EP0534931A1
EP0534931A1 EP92890200A EP92890200A EP0534931A1 EP 0534931 A1 EP0534931 A1 EP 0534931A1 EP 92890200 A EP92890200 A EP 92890200A EP 92890200 A EP92890200 A EP 92890200A EP 0534931 A1 EP0534931 A1 EP 0534931A1
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EP
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Prior art keywords
substance
boundary wall
collecting space
application
doctor element
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EP92890200A
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German (de)
French (fr)
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EP0534931B1 (en
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Johannes Zimmer
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    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material

Definitions

  • the invention relates to a device for applying a, in a closed system within the device to the application area under pressure, flowable viscous substance on flat surfaces, webs, rollers and the like.
  • a substance supply device which distributes the viscous flowable substance uniformly over the application width, the outlet openings of which open into a collecting space, the boundary walls of which form a slot forming the application area.
  • Such devices are, for example. known from the two Austrian patents 379,526 and 382,091 and from the European patent 147 536 based on these two Austrian patents.
  • the device described therein are characterized in that the slot rests sealingly on all sides against the template or the surface to be applied, and that this sealing contact is brought about by a magnetizable mass or magnetized by a magnetic field.
  • This all-round sealing of the slot leads to the following undesirable behavior when working with a template in practice.
  • the substance film remaining after application to the template is removed through the other side of the slot.
  • the object of the present invention is to provide a device in which these defects do not occur.
  • the inventive idea is to use dynamic sealing through the movement of the template and the web, which is particularly feasible for viscous substances. That means through the movement and the adhesion a force acts on the substance in the slot, which keeps the supply pressure in balance.
  • the object was achieved in that there is a dynamically sealing gap between the front boundary wall of the collecting space and the template or the surface to be applied, as viewed in the direction of movement, whereas the rear boundary wall with one adjacent to this boundary wall and the template or to the surface Squeegee element seals the collecting space.
  • the dynamic seal prevents substance from escaping through the gap.
  • Another object is to provide such a doctor device which can apply vertically upwards. It was no longer possible or necessary in printing and coating technology to create units that work against gravity. The previous machines either work with gravity or they work with nozzle devices. However, in order to create printing machines that require little space, it is advantageous to create printing stations that can work in any spatial position, including from bottom to top or diagonally from bottom to top.
  • the device according to the invention has a special device which constantly conveys the substance, a highly sensitive control device and a corresponding width-distributing substance supply device, which are also the subject of the invention.
  • FIGS. 1 and 2 show different embodiments of the invention, namely FIG. 1 a device with a doctor blade, the device working from bottom to top and FIG. 2 a device with a squeegee.
  • the substance according to the invention is fed via a feed line 14, which at the same time is also support beam of the device according to the invention.
  • the substance is then passed from the feed line 14 through a branching channel system of a substance supply device 8 and then reaches a collecting space 9.
  • the channels of the branching system can be thin-walled tubes which are connected to one another via distribution system openings 12.
  • a covering such as a square tube, in which a body 18 provided with channels 21 on its outer surfaces is preferably inserted from plastic.
  • the channels 21 are connected to one another at the distribution points 12 and it is thus possible to design a lightweight, width-distributing substance feed device 8 in a space-saving manner.
  • the collecting space 9 ends in a slot designed as an application area.
  • the front boundary wall 2 in the direction of movement is shorter than the rear boundary wall 1 in the direction of movement. That is, there is a gap between the application area and the template 3 or the application surface 4.
  • a doctor element is a roller doctor which is made of magnetizable material and can be pressed against the template 3 or, in FIG. 2, against the application surface 4 via a magnetic device 7.
  • the magnet 7 is switched off and a holding magnet 13 in the rear boundary wall 1 then comes into action. That is, when the magnet 7 is switched off, the holding magnet 13, which can be a permanent magnet, comes into effect and lifts the roller doctor blade 5 off the support surface.
  • the pressure inside the collecting space 9 on the substance is kept as low as possible, ie as low as the substance supply requires until application. It should be set so low that no passage of the substance through the openings of the template 3 is brought about by this pressure.
  • the arrangement according to the invention makes it possible to also work against gravity. To optimally adjust the pressure according to the invention To enable and to keep constant is, for example. a pump with a control device available.
  • a measuring device 10 is integrated in the collecting space 9, ie a measuring probe, the sensitivity of which responds to the special requirements of the substance supply in the low pressure range.
  • the substance supply can also be in the form of a pressure vessel from which the application substance is supplied in a pressure-adjustable manner.
  • FIG. 2 Another embodiment of the invention is shown in FIG. 2, in which a cavity 15 is incorporated into the rear boundary wall 1, in which a rod 16 made of magnetizable material is inserted.
  • This rod 16 carries a doctor blade 6 and is raised and lowered by a magnetic device located in the upper wall.
  • a device is created by the invention which is constructed similarly to a nozzle slot doctor blade device, that is with a limited i.e. defined substance exit area, with such a minimal substance pressure that there is no substance application.
  • the substance pressure should be as close to zero as possible in connection with a highly sensitive measuring probe and is set as low as is necessary for the measuring and control process. There is no pressure control here, i.e. thus no control in order to be able to set different pressures, as is the case for slot nozzle devices according to the known prior art.

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

Abstract

A device for applying a flowable viscous substance, which is under pressure in a closed system within the device as far as the region of application, onto plane surfaces, webs, rollers and the like in any width, with or without the use of stencils, there being arranged in the device a substance-feed apparatus which distributes the viscous flowable substance uniformly over the width of application and the outflow orifices of which open into a collecting space, the limiting walls of which form a slit constituting the region of application, characterised in that a dynamically sealing gap is present between the limiting wall (2), at the front as seen in the direction of movement, of the collecting space (9) and the stencil (3) or the surface to be coated, whereas the rear limiting wall (1) seals off the collecting space (9) by means of a conductor element (5) bearing against this limiting wall (1) and the stencil (3) or against the surface. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen einer, in einem geschlossenen System innerhalb der Vorrichtung bis zum Auftragungsbereich unter Druck stehenden, fließfähigen viskosen Substanz auf ebene Flächen, Bahnen, Walzen und dgl., in beliebiger Breite mit oder ohne Verwendung von Schablonen, wobei in der Vorrichtung eine die viskose fließfähige Substanz gleichmäßig über die Auftragungsbreite verteilende Substanzzuführeinrichtung angeordnet ist, deren Austrittsöffnungen in einen Sammelraum münden, dessen Begranzungswände einen den Auftragsbereich bildenden Schlitz formen.The invention relates to a device for applying a, in a closed system within the device to the application area under pressure, flowable viscous substance on flat surfaces, webs, rollers and the like. In any width with or without the use of templates, in which Device is arranged a substance supply device which distributes the viscous flowable substance uniformly over the application width, the outlet openings of which open into a collecting space, the boundary walls of which form a slot forming the application area.

Derartoge Vorrichtungen sind zB. durch die beiden österreichischen Patente 379.526 und 382.091 bzw. aus dem auf diesen beiden österreichischen Patenten beruhenden europäischem Patent 147 536 bekannt.Such devices are, for example. known from the two Austrian patents 379,526 and 382,091 and from the European patent 147 536 based on these two Austrian patents.

Die darin beschriebenen Vorrichtung sind dadurch gekennzeichnet, daß der Schlitz allseitig abdichtend an der Schablone bzw. der zu beauftragenden Fläche anliegt und daß dieses abdichtende Anliegen durch eine magnetisierbare bzw. von einem Magnetfeld magnetisierte Masse bewirkt wird. Durch dieses allseitige Abdichten des Schlitzes kommt es beim Arbeiten mit einer Schablone in der Praxis zu folgenden unerwünschten Verhalten. Der nach dem Auftragen auf der Schablone verbleibende Substanzfilm wird durch die andere Seite des Schlitzes wieder abgenommen. Das heißt, die in Bewegungsrichtung vorne liegende Begrenzungsleiste nimmt Substanz ab, wodurch sich ein irregulärer Zwickel vor dieser Leiste bildet. Dies stört den gesamten Auftragungsvorgang, indem diese Dichtleiste wie eine Rakel vor der eigentlichen Rakel zu wirken beginnt. Dieser Effekt ist umso stärker, je höher die Viskosität der aufzutragenden Substanz ist.The device described therein are characterized in that the slot rests sealingly on all sides against the template or the surface to be applied, and that this sealing contact is brought about by a magnetizable mass or magnetized by a magnetic field. This all-round sealing of the slot leads to the following undesirable behavior when working with a template in practice. The substance film remaining after application to the template is removed through the other side of the slot. This means that the limiting strip lying at the front in the direction of movement decreases in substance, as a result of which an irregular gusset forms in front of this strip. This disrupts the entire application process in that this sealing strip begins to act like a doctor blade in front of the actual doctor blade. The higher the viscosity of the substance to be applied, the stronger this effect.

Ein weiterer Mangel dieser oben genannten Vorrichtung des Standes der Technik ist, daß durch das Anliegen der beiden Begranzungwände, die einen Abstand von einigen mm oder cm voneinander haben, eine störende Verformung der sehr dünnwandigen gekrümmten Schabloneninnenwand mit relativ kleinem Radius entsteht. Unter Umständen kann es dabei sogar zu zerstörenden Einflüssen kommen.Another deficiency of the above-mentioned prior art device is that the contact between the two boundary walls, which are spaced a few mm or cm apart, results in a disruptive deformation of the very thin-walled curved inner template wall with a relatively small radius. Maybe it can there are even destructive influences.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zu schaffen, bei der diese Mängel nicht auftreten.The object of the present invention is to provide a device in which these defects do not occur.

Die erfinderische Idee ist die dynamische Abdichtung durch die Bewegung der Schablone und der Warenbahn zu nutzen, was insbesondere bei viskosen Substanzen durchführbar ist. Das heißt durch die Bewegung und die Adhäsion wirkt eine Kraft auf die im Schlitz befindliche Substanz, die dem Zuführungsdruck das Gleichgewicht hält.The inventive idea is to use dynamic sealing through the movement of the template and the web, which is particularly feasible for viscous substances. That means through the movement and the adhesion a force acts on the substance in the slot, which keeps the supply pressure in balance.

Die Aufgabe wurde dadurcht gelöst ,daß zwischen der in Bewegungsrichtung gesehen, vorderen Begrenzungswand der Sammelraumes und der Schablone bzw. der zu beauftragenden Fläche ein dynamisch abdichtender Spalt ist, wohingegen die hintere Begrenzungswand mit einem an dieser Begrenzungswand und der Schablone bzw. an der Fläche anliegenden Rakelelement den Sammemraum abdichtet. Damit kommt es nicht mehr zu den oben angeführten Mängeln, da die vordere Begrenzungswand nicht mehr an der Schablone bzw. der zu beauftragenden Fläche anliegt. Es wird aber durch die dymanische Abdichtung verhindert, daß Substanz durch den Spalt austritt.The object was achieved in that there is a dynamically sealing gap between the front boundary wall of the collecting space and the template or the surface to be applied, as viewed in the direction of movement, whereas the rear boundary wall with one adjacent to this boundary wall and the template or to the surface Squeegee element seals the collecting space. This means that the defects listed above no longer occur, since the front boundary wall no longer lies against the template or the surface to be applied. However, the dynamic seal prevents substance from escaping through the gap.

Bei den Vorrichtung gemäß des Standes der Technik ergeben sich dadurch weitere Probleme, daß bei der Zuführungs- und Breitenverteilungseinrichtung ein möglichst hoher Systemdruck aufgebaut wird, um mit möglichst geringen Austrittsquerschnitten auskommen zu können, was eine relativ große Gesamtquerschnittsdimensionierung erforderlich macht. In der EP-A 147 536 wird als Verteilungseinrichtung eine Platte mit eingearbeiteten verzweigenden Kanälen vorgeschlagen. Diese hat den Nachteil, daß sie einen zu großen Raumbedarf hat, zu schwer ist und außerdem bei dem erforderlichen hohen Druck schwer abzudichten ist. Ferner fordert der hohe Druck bei allen bekannten Vorrichtungen auch eine sehr leistungsstarke und dementsprechend teure Pumpe.In the device according to the prior art, there are further problems in that the highest possible system pressure is built up in the feed and width distribution device in order to be able to manage with the smallest possible outlet cross sections, which necessitates a relatively large overall cross-sectional dimensioning. In EP-A 147 536 a plate with incorporated branching channels is proposed as a distribution device. This has the disadvantage that it takes up too much space, is too heavy and, moreover, is difficult to seal at the high pressure required. Furthermore, the high pressure in all known devices also requires a very powerful and accordingly expensive pump.

Es ist daher eine weitere durch die vorliegende Erfindung gelöste Aufgabe, die Substanzzuführung der Vorrichtung so zu gestalten, daß der auf die Substanz einwirkende Druck äußerst niedrig gehalten wird, sodaß die Zuführung und die Breitenverteilungseinrichtung klein und leicht gehalten werden können und auch bei der Abdichtung der Einrichtungen keine Probleme entstehen. Durch die Erfindungsgemäße Lösung dieser Aufgabe ist es gleichzeitig ermöglicht, daß die erfingungsgemäße Vorrichtung mit Substanzen von geringer Viskosität arbeiten kann als bei Zuführungseinrichtungen, die mit hohem Druck arbeiten.It is therefore another one solved by the present invention Task to design the substance feed of the device so that the pressure acting on the substance is kept extremely low, so that the feed and the width distribution device can be kept small and light and no problems arise with the sealing of the devices. By achieving this object according to the invention, it is at the same time possible that the device according to the invention can work with substances of low viscosity than with supply devices which work with high pressure.

Eine weitere Aufgabe liegt darin, eine solche Rakel-Vorrichtung zu schaffen, die senkrecht nach oben auftragen kann. Bischer war es in der Druck- und Beschichtungstechnik nicht möglich bzw. nicht erforderlich , Aggregate zu schaffen, die gegen die Schwerkraft arbeiten. Die bisherigen Maschinen arbeiten entweder mit der Schwerkraft, oder sie arbeiten mit Düsengeräten. Um aber Druckmaschinen zu schaffen, die geringen Platsbedarf haben, ist es vorteilhaft, Druckstationen zu schaffen, die in jeder beliebigen räumlichen Lage arbeiten können, unter anderem von unten nach oben oder schräg von unten nach oben.Another object is to provide such a doctor device which can apply vertically upwards. It was no longer possible or necessary in printing and coating technology to create units that work against gravity. The previous machines either work with gravity or they work with nozzle devices. However, in order to create printing machines that require little space, it is advantageous to create printing stations that can work in any spatial position, including from bottom to top or diagonally from bottom to top.

Diese Aufgaben werden dadurch gelöst, daß die erfingungsgemäße Vorrichtung eine spezielle, die Substanz konstant fördernde Einrichtung, eine hoch empfindliche Steuereinrichtung und eine korrespondierende breitenverteilende Substanzzuführeinrichtung aufweist, die ebenfalls Gegenstand der Erfindung sind.These objects are achieved in that the device according to the invention has a special device which constantly conveys the substance, a highly sensitive control device and a corresponding width-distributing substance supply device, which are also the subject of the invention.

Die Erfindung wird an Hand der Zeichnungen beispielsweise näher beschrieben, wobei die Fig. 1 und 2 verschiedene Ausführungsformen der Erfindung zeigen, und zwar Fig.1 eine Vorrichtung mit einer Rollrakel, wobei die Vorrichtung von unten nach oben arbeitet und die Fig.2 eine Vorrichtung mit einer Streichrakel.The invention is described in more detail, for example, with reference to the drawings, in which FIGS. 1 and 2 show different embodiments of the invention, namely FIG. 1 a device with a doctor blade, the device working from bottom to top and FIG. 2 a device with a squeegee.

Wie man aus Fig.1 erkennen kann, wird der erfindungsgemäßen Vorrichtung die Substanz über eine Zuleitung 14 zugeführt, die zugleich auch Tragholm der erfindungsgemäßen Vorrichtung ist. Aus der Zuleitung 14 wird die Substanz dann durch ein sich verzweigendes Kanalsystem einer Substanzzuführeinrichtung 8 geleitet und gelangt dann in einen Sammelraum 9. Die Kanäle des Verzweigungssystems können dünnwandige Rohre sein, die miteinander über Verteilungssystemöffnungen 12 verbunden sind. Es besteht aber auch die Möglichkeit, eine Umhüllung, wie z.B. ein Vierkantrohr vorzusehen, in dem ein an seinen Aussenflächen mit Kanälen 21 versehener Körper 18 vorzugsweise aus Kunststoff eingesetzt ist. (Fig.2) Die Kanäle 21 sind an den Verteilungsstellen 12 miteinander verbunden und es ist so möglich, raumsparend eine leichtgewichtige, breitenverteilende Substanzzuführeinrichtung 8 zu gestalten. Der Sammelraum 9 endet in einem als Auftragungsbereich ausgebildeten Schlitz. Wie man erkennen kann, ist die in Bewegungsrichtung vordere Begrenzungswand 2 kürzer als die in Bewegungsrichtung hintere Begrenzungswand 1. Das heißt es entsteht ein Spalt zwischen dem Auftragungsbereich und der Schablone 3 bzw. der Auftragungsfläche 4. Um den Abstand zwischen dem Ende der hinteren Begrenzungswand 1 und der Auftragungsfläche 4 bzw. 3 abzudichten, ist erfindungsgemäß ein Rakelelement eine Rollrakel, die aus magnetisierbarem Material besteht, und über eine magnetische Einrichtung 7 an die Schablone 3 bzw. in der Fig.2 an die Auftragungsfläche 4 angepreßt werden kann.As can be seen from FIG. 1, the substance according to the invention is fed via a feed line 14, which at the same time is also support beam of the device according to the invention. The substance is then passed from the feed line 14 through a branching channel system of a substance supply device 8 and then reaches a collecting space 9. The channels of the branching system can be thin-walled tubes which are connected to one another via distribution system openings 12. However, there is also the possibility of providing a covering, such as a square tube, in which a body 18 provided with channels 21 on its outer surfaces is preferably inserted from plastic. (FIG. 2) The channels 21 are connected to one another at the distribution points 12 and it is thus possible to design a lightweight, width-distributing substance feed device 8 in a space-saving manner. The collecting space 9 ends in a slot designed as an application area. As can be seen, the front boundary wall 2 in the direction of movement is shorter than the rear boundary wall 1 in the direction of movement. That is, there is a gap between the application area and the template 3 or the application surface 4. By the distance between the end of the rear boundary wall 1 and to seal the application surface 4 or 3, according to the invention, a doctor element is a roller doctor which is made of magnetizable material and can be pressed against the template 3 or, in FIG. 2, against the application surface 4 via a magnetic device 7.

Ist die Vorrichtung nicht in Betrieb, so wird der Magnet 7 abgeschaltet und es tritt dann ein Haltemagnet 13 in der hinteren Begrenzungswand 1 in Aktion. Das heißt bei Abschalten des Magneten 7 kommt der Haltmagnet 13 , der ein Permanentmagnet sein kann, zur Wirkung und hebt die Rollrakel 5 von Auflagefläche ab. Der Druck innerhalb des Sammelraumes 9 auf die Substanz wird so niedrig als möglich gehalten, d.h. so niedrig, als es die Substanzzuführung bis zur Auftragung erfordert. Er soll so gering eingestellt werden, daß durch diesen Druck kein Durchtritt der Substanz durch die Öffnungen der Schablone 3 zustande gebracht wird. Durch die erfindungsgemäße Anordnung ist es möglich, auch entgegen der Schwerkraft zu arbeiten. Um die erfindungsgemäß optimale Einstellung der Druckes zu ermöglichen und konstant zu erhalten, ist zB. eine Pumpe mit einer Steuerungseinrichtung vorhanden. Im Sammelraum 9 ist eine Meßeinrichtung 10 integriert, d.h. eine Meßsonde, deren Empfindlichkeit auf die speziellen Erfordernisse der Substanzzuführung im geringen Druckbereich anspricht. Die Substanzzuführung kann auch in Form eines Druckbehälters vorliegen, aus dem Auftragungssubtanz druckeinstellbar zugeführt wird.If the device is not in operation, the magnet 7 is switched off and a holding magnet 13 in the rear boundary wall 1 then comes into action. That is, when the magnet 7 is switched off, the holding magnet 13, which can be a permanent magnet, comes into effect and lifts the roller doctor blade 5 off the support surface. The pressure inside the collecting space 9 on the substance is kept as low as possible, ie as low as the substance supply requires until application. It should be set so low that no passage of the substance through the openings of the template 3 is brought about by this pressure. The arrangement according to the invention makes it possible to also work against gravity. To optimally adjust the pressure according to the invention To enable and to keep constant is, for example. a pump with a control device available. A measuring device 10 is integrated in the collecting space 9, ie a measuring probe, the sensitivity of which responds to the special requirements of the substance supply in the low pressure range. The substance supply can also be in the form of a pressure vessel from which the application substance is supplied in a pressure-adjustable manner.

In Fig.2 ist eine andere Ausführungsform der Erfindung dargestellt, indem hier in die hintere Begrenzungswand 1 eine Holraum 15 eingearbeitet ist, in dem ein Stab 16 aus magnetisierbarem Material eingesetzt ist. Dieser Stab 16 trägt eine Streichrakel 6 und wird durch eine sich in der oberen Wand befindliche Magneteinrichtung gehoben und gesenkt.Another embodiment of the invention is shown in FIG. 2, in which a cavity 15 is incorporated into the rear boundary wall 1, in which a rod 16 made of magnetizable material is inserted. This rod 16 carries a doctor blade 6 and is raised and lowered by a magnetic device located in the upper wall.

Zusammenfassend kann gesagt werden, es ist durch die Erfingung eine Vorrichtung geschaffen, die ähnlich einem Düsenschlitzrakelgerät konstruiert ist, das ist mit einem begrenzten d.h. definierten Substanzaustrittsbereich, wobei ein so minimaler Substanzdruck vorhanden ist, daß dadurch keine Substanzauftragung gegeben ist. Der Substanzdruck soll möglichst nahe an Null in Verbindung mit einer hochempfindlichen Meßsonde sein und wird so gering eingestellt, als es für den Meß- und Steuerungsvorgang erforderlich ist. Es findet hier alos keine Drucksteuerung statt, d.h. also keine Steuerung, um unterschiedliche Drücke einstellen zu können, wie dies für Schlitzdüsengeräte nach dem bekannten Stand der Technik der Fall ist. Es ist ein möglichst kontinuierlich arbeitendes Zuführungssystem vorhanden, das feinfühlig gesteuert, mit Auftragungssubtanz versorgt wird, wobei es auch möglich ist, dieses Auftragungsgerät ohne konstruktive Änderungen für unterschiedliche Auftragungsvorgänge einzusetzen , und zwar für ein Subtanzauftragung entweder von oben nach unten oder von unten nach oben, ebenso horizontal oder schräg gerichtet.In summary it can be said that a device is created by the invention which is constructed similarly to a nozzle slot doctor blade device, that is with a limited i.e. defined substance exit area, with such a minimal substance pressure that there is no substance application. The substance pressure should be as close to zero as possible in connection with a highly sensitive measuring probe and is set as low as is necessary for the measuring and control process. There is no pressure control here, i.e. thus no control in order to be able to set different pressures, as is the case for slot nozzle devices according to the known prior art. There is a supply system that works as continuously as possible, which is controlled with care, supplied with application substance, whereby it is also possible to use this application device without design changes for different application processes, for a substance application either from top to bottom or from bottom to top, just as horizontally or obliquely.

Claims (10)

Vorrichtung zum Auftragen einer, in einem geschlossenen System innerhalb der Vorrichtung bis zum Auftragungsbereich unter Druck stehenden, fließfähigen viskosen Subtanz auf ebene Flächen, Bahnen, Walzen und dgl., in beliebiger Breite mit oder ohne Verwendung von Schablonen, wobei in der Vorrichtung, eine die viskose fließfähige Substanz gleichmäßig über die Auftragungsbreite verteilende Substanzzuführeinrichtung angeordnet ist, deren Austrittsöffnungen in einen Sammelraum münden, dessen Begrenzungswände einen den Auftragungsbereich bildenden Schlitz formen, dadurch gekennzeichnet, daß zwischen der in Bewegungsrichtung gesehen, vorderen Begrenzungswand (2) des Sammelraumes (9) und der Schablone (3) bzw. der zu beauftragenden Fläche (4) ein dynamisch abdichtender Spalt ist, wohingegen die hintere Begrenzungswand (1) mit einem an dieser Begrenzungswand (1) und der Schablone (3) bzw. an der Fläche (4) anliegenden Rakelelement (5,6) den Sammelraum (9) abdichtet.Device for applying a flowable, viscous substance under pressure in a closed system within the device to the application area on flat surfaces, webs, rollers and the like, in any width with or without the use of stencils, wherein in the device, one of the Viscous flowable substance is arranged uniformly over the application width distributing substance feed device, the outlet openings of which open into a collecting space, the boundary walls forming a slot forming the application area, characterized in that between the front boundary wall (2) of the collecting space (9) and the Template (3) or the surface to be applied (4) is a dynamically sealing gap, whereas the rear boundary wall (1) with a doctor element resting on this boundary wall (1) and the template (3) or on the surface (4) (5,6) seals the collecting space (9). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Rakelelement (5,6), zumindest teilweise aus magnetisierbarem Material besteht und die Abdichtung gegen die Schablone (3) bzw. die zu beauftragende Fläche (4) mittels einer magnetischen Einrichtung (7) erzielt wird.Apparatus according to claim 1, characterized in that the doctor element (5,6) consists at least partially of magnetizable material and the sealing against the template (3) or the surface to be applied (4) is achieved by means of a magnetic device (7) . Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rakelelement eine Rollrakel (5) ist.Apparatus according to claim 1 or 2, characterized in that the doctor element is a roller doctor (5). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rakelelement eine Streichrakelleiste (6) ist.Apparatus according to claim 1 or 2, characterized in that the doctor element is a doctor blade strip (6). Vorrichtung nach einen der vorgehenden Ansprüche, dadurch gekennzeichnet, daß die Substanzzuführeinrichtung (8) von einer Pumpe mit Substanz versorgt wird, die den für die konstante Zuführung der Substanz in den Auftragungsbereich benötigten Mindestdruck erzeugt, während der für die Auftragung benötigte Druck durch die Form bzw. die Anordnung des Rakelelementes und durch die Kraft bestimmt wird, mit der das Rakelelement (5,6) and die Schablone (3) bzw. die Fläche (4) gepreßt wird.Device according to one of the preceding claims, characterized in that the substance supply device (8) is supplied with substance by a pump which generates the minimum pressure required for the constant supply of the substance into the application area, while the pressure required for the application is determined by the shape or arrangement of the doctor element and by the force with which the doctor element (5, 6) is pressed onto the stencil (3) or the surface (4). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Sammelraum (9) ein Druck- bzw. Kontaktmeßgerät odgl.(10) angeordnet ist, das signalgebend für die Steuereinrichtung der Pumpe ist.Device according to one of the preceding claims, characterized in that a pressure or contact measuring device or the like (10) is arranged in the collecting space (9), which is signaling for the control device of the pump. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Substanzzuführeinrichtung (8) aus einer Umhüllung, z.B. einem Vierkantrohr, und einem darin befindlichen, vorzugsweise aus Kunststoff gefertigten Einsatzkörper (18), der an seinen Außenflächen mit Kanälen (21) versehen ist, die an Verteilungsstellen (12) miteinander verbunden sind, besteht.Device according to one of Claims 1 to 6, characterized in that the substance supply device (8) consists of a covering, e.g. a square tube, and an insert body (18) located therein, preferably made of plastic, which is provided on its outer surfaces with channels (21) which are connected to one another at distribution points (12). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in der in Bewegungsrichtung gesehen hinteren Begrenzungswand (1) mindestens ein Haltemagnet (13) angeordnet ist, der das Rakelelement (5,6) anhebt und außerhalb des Betriebszustandes an der Begrenzungwand (1) festhält und es von der Schablone (3) bzw. von der Fläche (4) abhebt.Device according to one of the preceding claims, characterized in that at least one holding magnet (13) is arranged in the rear boundary wall (1) when viewed in the direction of movement, which holds the doctor element (5,6) and holds it against the boundary wall (1) outside the operating state and it lifts from the template (3) or from the surface (4). Vorrichtung nach einem der vorhergehendnen Ansprüche, dadurch gekennzeichnet, daß das Rakelelement (5,6) in einem Hohlraum (15) der hinteren Begrenzungswand (1) heb- und senkbar eingesetzt ist.Device according to one of the preceding claims, characterized in that the doctor element (5, 6) is inserted in a cavity (15) of the rear boundary wall (1) so that it can be raised and lowered. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß eine Steichrakel (6) in einem Stab aus zumindest teilweise magnetisierbarem Material eingesetzt ist, der sich im Hohlraum (15) befindet.Apparatus according to claim 13, characterized in that a squeegee (6) is inserted in a rod made of at least partially magnetizable material, which is located in the cavity (15).
EP19920890200 1991-09-23 1992-09-22 Device for applying a liquid viscous substance Expired - Lifetime EP0534931B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1916/91 1991-09-23
AT191691A AT401622B (en) 1991-09-23 1991-09-23 DEVICE FOR APPLYING A FLOWABLE VISCOSE SUBSTANCE

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EP0534931A1 true EP0534931A1 (en) 1993-03-31
EP0534931B1 EP0534931B1 (en) 1996-05-08

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EP19920890200 Expired - Lifetime EP0534931B1 (en) 1991-09-23 1992-09-22 Device for applying a liquid viscous substance

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EP (1) EP0534931B1 (en)
AT (1) AT401622B (en)
DE (1) DE59206224D1 (en)
ES (1) ES2089486T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404334B (en) * 1994-12-12 1998-10-27 Zimmer Johannes Hollow-body supporting beam of an application/doctor apparatus

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DE2134983A1 (en) * 1970-07-22 1972-02-03 Zimmer, Peter, Kufstein, Tirol (Österreich) Squeegee device
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
WO1985001226A1 (en) * 1983-09-12 1985-03-28 Johannes Zimmer Process and device for applying a material to a medium
WO1987006504A1 (en) * 1986-04-30 1987-11-05 Johannes Zimmer Device for applying small or extremely small quantities of flowable substances
EP0297528A1 (en) * 1987-06-30 1989-01-04 Johannes Zimmer Doctor device

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US4452833A (en) * 1982-02-08 1984-06-05 Consolidated Papers, Inc. Paper coating method
US4503804A (en) * 1983-01-17 1985-03-12 Consolidated Papers, Inc. Edge seal assembly for paper coating apparatus
FI71081C (en) * 1984-05-11 1986-11-24 Waertsilae Oy Ab coating method
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Publication number Priority date Publication date Assignee Title
DE2134983A1 (en) * 1970-07-22 1972-02-03 Zimmer, Peter, Kufstein, Tirol (Österreich) Squeegee device
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
WO1985001226A1 (en) * 1983-09-12 1985-03-28 Johannes Zimmer Process and device for applying a material to a medium
WO1987006504A1 (en) * 1986-04-30 1987-11-05 Johannes Zimmer Device for applying small or extremely small quantities of flowable substances
EP0297528A1 (en) * 1987-06-30 1989-01-04 Johannes Zimmer Doctor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404334B (en) * 1994-12-12 1998-10-27 Zimmer Johannes Hollow-body supporting beam of an application/doctor apparatus

Also Published As

Publication number Publication date
EP0534931B1 (en) 1996-05-08
ES2089486T3 (en) 1996-10-01
DE59206224D1 (en) 1996-06-13
AT401622B (en) 1996-10-25
ATA191691A (en) 1996-03-15

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