EP2740544A1 - Device for applying in particular pasty plastic material onto a surface - Google Patents

Device for applying in particular pasty plastic material onto a surface Download PDF

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Publication number
EP2740544A1
EP2740544A1 EP13005741.7A EP13005741A EP2740544A1 EP 2740544 A1 EP2740544 A1 EP 2740544A1 EP 13005741 A EP13005741 A EP 13005741A EP 2740544 A1 EP2740544 A1 EP 2740544A1
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EP
European Patent Office
Prior art keywords
opening
liquid
wall element
discharge opening
attached
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Granted
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EP13005741.7A
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German (de)
French (fr)
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EP2740544B1 (en
Inventor
Udo Tartler
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Individual
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Individual
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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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element

Definitions

  • the present invention relates to a device for dispensing liquid as a wide jet, having a supply port for the liquid and having a discharge port which is in line communication with the supply port and has an opening cross-section which is wider than high.
  • the uniform application must be done in a limited time, ie as quickly as possible, because until the curing of the plastic (which of course should take place only after application) only a limited time is available: some plastics, for example (at least) two components are mixed together , The mixture then cross-links and cures.
  • the application is therefore preferably as late as possible after mixing, for example, immediately after passing the plastic through a tubular conduit section (mixer) with shaped elements (swirling elements) in its interior, variously deflecting and deflecting the fluid flowing through it, locally damaging, generating turbulence and / or swirl and thus mix.
  • a tubular conduit section mixer
  • the uniform surface application of the plastic in this example - but also of liquids in whatever technical context whatsoever, be it by a robot or by hand - is known to accomplish particularly well by means of a device for dispensing the liquid as a broad beam.
  • the discharge opening of the device, from which the wide jet preferably exits with a uniform volume flow, is then preferably guided over the surface at a uniform speed, the guide direction being at right angles to the width of the jet. In this way, (as with a lawn mower to be mowed lawn) the entire area is painted over, with a trace of application as flush as possible to an adjacent.
  • the device In order to apply as evenly as possible within an application track, it is necessary for the device to uniformly spread a beam over its width generated distributed volume flow. This is directly or indirectly dependent on a large number of flow-mechanical parameters: directly, for example, from the liquid pressure across the width of the discharge opening; at least indirectly, for example, of cross-sectional areas and contours and of the directional course of the line connection between the liquid feed line and the dispensing opening and of the opening contour of the dispensing opening and of the viscosity of the liquid and the temperature.
  • the present invention is based on the object to provide a device for dispensing liquid as a broad jet with improved uniformity of the volume flow across its width and that adaptable to various fluid mechanical parameters of the liquid flow in the device.
  • a device serves to dispense liquid as a broad jet.
  • it has a feed opening for conveying the liquid through the feed opening into the device, and a discharge opening which is in line connection with the feed opening in the device.
  • the discharge opening has an opening cross-section which is wider than high so as to produce the liquid jet as a broad jet as liquid is dispensed from the discharge opening.
  • the discharge opening is formed in a wall element which can be detached from the device and, in particular, can be attached to the device again.
  • the dispensing opening for another dispensing opening in particular with another contour, interchangeable, which can then be adapted to a respective other flow situation and / or technical task when dispensing liquid as a broad beam.
  • the dispensing opening may be slit-shaped, ie wider than high, with the gap height in the middle of the gap being smallest (viewed across its width) and center-symmetrically thereafter enlarged on both sides to the split ends.
  • the pressure which drops slightly towards these edges is taken into account in the liquid passed through the device: there, at the ends, the liquid under lower pressure becomes less in the form of the larger flow cross-section opposite there larger gap heights.
  • the discharge opening in another wall element, which is also set up for attachment to the device, may be thin for dispensing another such as water Liquid the discharge opening slit-shaped with over the slit width constant slit height.
  • the discharge opening may be formed by, for example, a straight row of, for example, circular bores all over the width of this discharge opening area for example, have a larger diameter towards the edge.
  • the discharge opening is formed in still another wall element so that the device generates a beam with over its width deliberately unevenly distributed volume flow.
  • Essential to the invention is the diversity of the design possibilities of the discharge opening contour but the removability of the wall element with the discharge opening, which particularly preferably provides a device system allows with several wall elements with different discharge openings - or even without dispensing opening, so that the user with his Production options in such a wall element without dispensing opening a discharge opening according to its requirements only for example milled or punched.
  • By replacing the device can thus be adapted to different fluidic tasks, but also be maintained faster, for example, by a dirty and / or clogged discharge port is replaced with a new clean.
  • the device and also the wall element are preferably made of metal and / or plastic.
  • the wall element may also consist of a different material from the rest of the device, for example of plastic, if the rest of the device consists (essentially) of metal.
  • the wall element fitted to the device, covers an opening in the device.
  • the wall element on a circumference around the flange liquid-tightly connects to the device, so that the line connection of the discharge opening with the inlet opening to the outside is formed liquid-tight in the device, so that the liquid only through the inlet opening into the device and again through the discharge opening can escape.
  • the wall element has at least one connecting element which cooperates in a form-fitting manner with a connecting counter element on the device (in particular on the outside of the device) when the wall element is attached to the device.
  • the device has two parallel grooves as connecting counter elements (the flange opening being arranged between the grooves), and the wall element has projection structures, for example webs or barbs or Schwabenschwanz Modellen as connecting elements, of which at least one engages in each of the grooves and the Wandungselement liquid-tight pressed against the circumference of the flange opening holds when the wall element is attached to the device.
  • the wall element can be designed to be pushed off the side of the device for removal.
  • the flange opening is preferably wider than high (with appropriate orientation of height and width).
  • the flange opening is bounded by a flat edge, against which a flat inner surface of the wall element liquid-tight, when the wall element is attached to the device. This can ensure the liquid-tightness, even if the wall element is designed to be laterally slidable for removal from the device.
  • the device is a tool, wherein the feed opening is preferably set up for the connection of a flexible supply line.
  • the device 2 according to Fig. 1 to 6 is used for applying cross-linking, still liquid plastic (not shown) on a surface (not shown).
  • the device 2 has a tubular supply port 4 for the plastic (with a connection pipe 6 for a supply hose (not shown), so as to form a tool that can move freely due to the flexibility of the supply hose by hand or by robot) and a discharge port 8 for the plastic.
  • the feed opening 4 and the discharge opening 8 are the device 2 along a straight central axis 10 in line connection 12 with each other.
  • the tubular supply line 4 is around the straight central axis 10 around a circular cylindrical tube.
  • the discharge opening 8 is (in Fig. 6 recognizable) slit-shaped, that is wider than high, wherein the gap height HM in the middle of the gap (viewed over its width B) is the lowest, and increases from there mittsymmetrisch to both sides to the gap ends.
  • the pressure slightly decreasing towards these edges (due to there in the edge regions of greater flow resistance) in the guided through the device 2 Fluid taken into account: there at the ends of the lower pressure liquid there is opposed to a lower flow resistance in the shape of the larger flow cross-section of the larger gap heights HE.
  • the outlet opening 8 is arranged in a wall element 14, which can be removed from the device 2 and replace it with another wall element, which in geometry and Dimensions of the outlet opening 8 can be exactly adapted to the now to be dispensed with the device 2 liquid and the other flow and boundary conditions.
  • the wall element 14 and any other wall element with corresponding connection structures can thus be applied again to the device 2 and then covered again, attached, a flange 16 in the device 2.
  • a flange 16 On a circumference around the flange 16 closes the wall member 14 liquid-tight to the device, so that the line connection 12 of the discharge opening 8 is formed with the supply port 4 in the device 2 to the outside liquid-tight.
  • the flange opening 16 has an opening cross-section which is wider than high.
  • the edge 18 of the flange opening 16 is rectangular, with the rectangle 18 described by the edge 18 having a height HF smaller than its width BF.
  • the corners 20 of the rectangle 14 are rounded. This facilitates the production, for example as an injection-molded component - and, if necessary, the cleaning. In addition, it counteracts "dead water" areas in the corners, so areas in sharp corners, for example, where through adhesion effects, the flow and so the exchange and rapid onward transport of the liquid would be reduced - which can lead to premature cross-linking, for example the liquid is crosslinking plastic.
  • the edge 18 of the flange opening 16 is flat - that is, it lies in an (imaginary) plane (with a view to Fig. 4 can be seen as straight line 22).
  • a flat edge 18 is a flat inner surface 24 of the wall member 14 liquid-tight, when the wall element 14 (as shown) is attached to the device 2.
  • Wall element 14 In order to be interchangeable in this planar orientation of the sealing surfaces 18, 24 to each other with ease of handling, the wall element 14 is displaceable in a direction of the plane 22 with respect to the device 2 and detachable from the device 2 - namely deputable total of the device 2:
  • Wall element 14 has as a connecting element on two parallel webs 26, the form-fitting, each with a connecting counter-element in the form of a groove 28 (parallel to each other on the outside of the Device 2) cooperate when the wall element 14 is attached to the device 2.
  • the flange opening 16 is disposed between the grooves.
  • the webs 26 are projection structures which are matched in their position and dimension to the grooves 28 and the sealing surfaces 18, 24 in such a way that they respectively engage in one of the grooves 28 and hold the wall element 14 in a liquid-tight manner against the periphery 18 of the flange opening 16 when the wall element 14 is attached to the device 2.
  • the supply line opening 4 has the hose connection 6 in the form of a circular cylindrical outer contour with a peripheral thickening 6 which extends in a suitable coupling counterpart (not shown), namely simply the hose end (not shown) of the supply hose, stuck and there, for example, with a quick-release clamp (not shown) force and frictionally secure.

Abstract

The apparatus (2) has a tubular inlet opening (4) for a liquid i.e. liquid plastic, and a discharge opening (8) that is provided in line connection with the supply opening. The discharge opening is provided with an opening cross-section that is widen than height of the opening. The discharge opening is formed in a wall element (14) that is able to be removed from the liquid dispensing apparatus. A fiber element is formed in a wall element. The wall element is arranged with a connector that cooperates positively with a counter-connection element.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung, zum Abgeben von Flüssigkeit als breitem Strahl, mit einer Zuleitungsöffnung für die Flüssigkeit und mit einer Abgabeöffnung, die in Leitungsverbindung mit der Zuleitungsöffnung steht und einen Öffnungsquerschnitt aufweist, der breiter ist als hoch.The present invention relates to a device for dispensing liquid as a wide jet, having a supply port for the liquid and having a discharge port which is in line communication with the supply port and has an opening cross-section which is wider than high.

Das Abgeben von Flüssigkeit als breitem Strahl ist in der Technik vielfach erforderlich. Nur zum Beispiel beim Herstellen von Bauteilflächen oder flachen Halbzeugen aus faserverstärktem Kunststoff wird zum Beispiel noch nicht (vollständig) vernetzter, noch flüssiger Kunststoff durch eine Schlauch- oder Rohrleitung zu einer Herstellungsvorrichtung geleitet, wo die Faserverstärkung bereits auf einer Formfläche liegt. Der Kunststoff ist dann möglichst gleichmäßig und schnell auf die Formfläche aufzutragen, bevor sich dann zum Beispiel eine Formgegenfläche auf die Formfläche absenkt, die (im entsprechend dimensionierten Zwischenraum) den Kunststoff mit der Faserverstärkung zu einem Bauteil gleichmäßiger Dicke verpresst. Zum Beispiel Motorhauben aus CFK werden prinzipiell auf diese Weise hergestellt.The dispensing of liquid as a broad jet is often required in the art. For example, only when producing component surfaces or flat semi-finished products made of fiber-reinforced plastic is not (fully) crosslinked, still liquid plastic passed through a hose or pipe to a manufacturing device, where the fiber reinforcement is already on a mold surface. The plastic is then as evenly and quickly applied to the mold surface before then, for example, a mold counter surface lowers to the mold surface, which (in the correspondingly dimensioned gap) compresses the plastic with the fiber reinforcement to a component of uniform thickness. For example, bonnets made of CFRP are manufactured in principle in this way.

Das gleichmäßige Auftragen muss in begrenzter Zeit, also möglichst schnell geschehen, weil bis zum Aushärten des Kunststoffs (das selbstverständlich erst nach dem Auftragen erfolgen soll) nur eine begrenzte Zeit zur Verfügung steht: bei einigen Kunststoffen werden zum Beispiel (mindestens) zwei Komponenten miteinander vermischt. Das Gemisch vernetzt dann und härtet aus. Das Aufbringen erfolgt daher bevorzugt möglichst spät nach dem Mischenzum Beispiel unmittelbar nach dem Durchleiten des Kunststoffs durch einen rohrförmigen Leitungsabschnitt (Mischer) mit Formelementen (Verwirbelungselementen) in seinem Innenraum, die hindurchströmendes Fluid verschiedentlich um- und ablenken, lokal stauen, Turbulenzen erzeugen und/oder verwirbeln und somit durchmischen. In diesen Mischer hinein führten bekanntlich Zuleitungen insbesondere in der Anzahl der fluiden Komponenten, aus denen der Kunststoff zusammenzumischen ist.The uniform application must be done in a limited time, ie as quickly as possible, because until the curing of the plastic (which of course should take place only after application) only a limited time is available: some plastics, for example (at least) two components are mixed together , The mixture then cross-links and cures. The application is therefore preferably as late as possible after mixing, for example, immediately after passing the plastic through a tubular conduit section (mixer) with shaped elements (swirling elements) in its interior, variously deflecting and deflecting the fluid flowing through it, locally damaging, generating turbulence and / or swirl and thus mix. In these mixers, it is known that supply lines resulted in particular in the number of fluid components from which the plastic is to be mixed.

Das gleichmäßig flächige Auftragen des Kunststoffs in diesem Beispiel - aber auch von Flüssigkeiten überhaupt in welchem technischen Zusammenhang auch immer, sei es durch einen Roboter oder von Hand - lässt sich bekanntlich besonders gut mittels einer Vorrichtung zum Abgeben der Flüssigkeit als breitem Strahl bewerkstelligen. Die Abgabeöffnung der Vorrichtung, aus der der breite Strahl vorzugsweise mit gleichmäßigem Volumenstrom austritt, wird dann vorzugsweise mit gleichmäßiger Geschwindigkeit über die Fläche geführt, die Führungsrichtung rechtwinklig zur Breite des Strahls. Auf diese Weise wird (wie mit einem Rasenmäher der zu mähende Rasen) die gesamte Fläche überstrichen, mit einer Auftragungsspur möglichst bündig an einer benachbarten.The uniform surface application of the plastic in this example - but also of liquids in whatever technical context whatsoever, be it by a robot or by hand - is known to accomplish particularly well by means of a device for dispensing the liquid as a broad beam. The discharge opening of the device, from which the wide jet preferably exits with a uniform volume flow, is then preferably guided over the surface at a uniform speed, the guide direction being at right angles to the width of the jet. In this way, (as with a lawn mower to be mowed lawn) the entire area is painted over, with a trace of application as flush as possible to an adjacent.

Damit auch innerhalb einer Auftragungsspur das Auftragen möglichst gleichmäßig erfolgt, ist es erforderlich, dass die Vorrichtung einen Strahl mit über seine Breite gleichmäßig verteiltem Volumenstrom erzeugt. Dies ist von einer Vielzahl strömungsmechanischer Parameter unmittelbar oder mittelbar abhängig: unmittelbar zum Beispiel vom Flüssigkeitsdruck über die Breite der Abgabeöffnung; mindestens mittelbar zum Beispiel von Querschnittsflächen und -konturen und vom Richtungsverlauf der Leitungsverbindung zwischen der Flüssigkeitszuleitung und der Abgabeöffnung sowie von der Öffnungskontur der Abgabeöffnung und von der Viskosität der Flüssigkeit und der Temperatur.In order to apply as evenly as possible within an application track, it is necessary for the device to uniformly spread a beam over its width generated distributed volume flow. This is directly or indirectly dependent on a large number of flow-mechanical parameters: directly, for example, from the liquid pressure across the width of the discharge opening; at least indirectly, for example, of cross-sectional areas and contours and of the directional course of the line connection between the liquid feed line and the dispensing opening and of the opening contour of the dispensing opening and of the viscosity of the liquid and the temperature.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Vorrichtung zum Abgeben von Flüssigkeit als breitem Strahl zu schaffen mit verbesserter Gleichmäßigkeit des Volumenstroms über seine Breite und zwar anpassbar an verschiedene strömungsmechanische Parameter der Flüssigkeitsströmung in der Vorrichtung.The present invention is based on the object to provide a device for dispensing liquid as a broad jet with improved uniformity of the volume flow across its width and that adaptable to various fluid mechanical parameters of the liquid flow in the device.

Diese Aufgabe wird von einer Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausgestaltungen sind in den Unteransprüchen angegeben.This object is achieved by a device having the features of claim 1. Preferred embodiments are specified in the subclaims.

Eine erfindungsgemäße Vorrichtung dient zum Abgeben von Flüssigkeit als breitem Strahl. Dazu hat sie eine Zuleitungsöffnung, um die Flüssigkeit durch die Zuleitungsöffnung in die Vorrichtung zu fördern, und eine Abgabeöffnung, die in der Vorrichtung in Leitungsverbindung mit der Zuleitungsöffnung steht. Die Abgabeöffnung weist einen Öffnungsquerschnitt auf, der breiter ist als hoch, um so beim Abgeben von Flüssigkeit aus der Abgabeöffnung den Flüssigkeitsstrahl als breiten Strahl zu erzeugen.A device according to the invention serves to dispense liquid as a broad jet. For this purpose, it has a feed opening for conveying the liquid through the feed opening into the device, and a discharge opening which is in line connection with the feed opening in the device. The discharge opening has an opening cross-section which is wider than high so as to produce the liquid jet as a broad jet as liquid is dispensed from the discharge opening.

Erfindungsgemäß ist die Abgabeöffnung in einem Wandungselement ausgebildet, das sich von der Vorrichtung abnehmen und insbesondere auch wieder an die Vorrichtung ansetzen lässt. So ist mit dem Wandungselement die Abgabeöffnung gegen eine andere Abgabeöffnung, insbesondere mit einer anderen Kontur, austauschbar, die dann an eine jeweilige andere Strömungssituation und/oder technische Aufgabe beim Abgeben von Flüssigkeit als breitem Strahl angepasst sein kann.According to the invention, the discharge opening is formed in a wall element which can be detached from the device and, in particular, can be attached to the device again. Thus, with the wall element, the dispensing opening for another dispensing opening, in particular with another contour, interchangeable, which can then be adapted to a respective other flow situation and / or technical task when dispensing liquid as a broad beam.

So kann in einem Wandungselement für das Abgeben einer bestimmten zum Beispiel relativ hoch viskosen Flüssigkeit die Abgabeöffnung schlitzformig sein, also breiter als hoch, wobei die Spalthöhe in der Mitte der Spalts (über seine Breite betrachtet) am geringsten ist, und sich von dort mittensymmetrisch nach beiden Seiten zu den Spaltenden vergrößert. So wird dem zu diesen Rändern hin leicht abfallenden Druck (aufgrund dort in den Randbereichen größerer Strömungswiderstände) in der durch die Vorrichtung geleiteten Flüssigkeit Rechnung getragen: dort an den Enden wird der dort unter geringerem Druck stehenden Flüssigkeit ein geringerer Strömungswiderstand in Gestalt des größeren Strömungsquerschnitts der dort größeren Spalthöhen entgegengesetzt. Insgesamt ergibt sich daraus, dass der breite Strahl der (zum Beispiel zähflüssigen) Flüssigkeit mit über seine Breite gleichmäßigem Volumenstrom aus der Vorrichtung austritt.Thus, in a wall member for dispensing a certain, for example, relatively highly viscous liquid, the dispensing opening may be slit-shaped, ie wider than high, with the gap height in the middle of the gap being smallest (viewed across its width) and center-symmetrically thereafter enlarged on both sides to the split ends. In this way, the pressure which drops slightly towards these edges (due to the greater flow resistance in the edge regions) is taken into account in the liquid passed through the device: there, at the ends, the liquid under lower pressure becomes less in the form of the larger flow cross-section opposite there larger gap heights. Overall, this results in the fact that the broad jet of (for example viscous) liquid emerges from the device with a uniform volume flow over its width.

In einem anderen Wandungselement, das ebenfalls für das Ansetzen an die Vorrichtung eingerichtet ist, kann für das Abgeben einer anderen zum Beispiel wie Wasser dünnflüssigen Flüssigkeit die Abgabeöffnung schlitzförmig mit über die Schlitzbreite konstanter Schlitzhöhe sein. In noch einem anderen Wandungselement, das ebenfalls für das Ansetzen an die Vorrichtung eingerichtet ist, kann für das Abgeben einer anderen Flüssigkeit die Abgabeöffnung von einer zum Beispiel geradlinig angeordneten Reihe zum Beispiel kreisrunder Bohrungen gebildet sein, die über die Breite dieses Abgabeöffnungsbereichs alle einen gleichen oder zum Beispiel zum Rand hin einen größeren Durchmesser aufweisen. Für einige technische Aufgaben ist es aber auch denkbar, dass die Abgabeöffnung in noch einem anderen Wandungselement so ausgebildet ist, dass die Vorrichtung einen Strahl mit über seine Breite bewusst ungleichmäßig verteiltem Volumenstrom erzeugt. Wesentlich für die Erfindung ist bei aller Vielfalt der Gestaltmöglichkeiten der Abgabeöffnungs-Kontur aber die Abnehmbarkeit des Wandungselements mit der Abgabeöffnung, welche besonders bevorzugt ein Vorrichtungssystem bereitzustellen ermöglicht mit mehreren Wandungselementen auch mit verschiedenen Abgabeöffnungen - oder sogar zunächst ohne Abgabeöffnung, so dass der Anwender mit seinen fertigungstechnischen Möglichkeiten in ein solches Wandungselement ohne Abgabeöffnung eine Abgabeöffnung nach seinen Erfordernissen erst zum Beispiel hinein fräst oder stanzt. Durch das Auswechseln kann die Vorrichtung also an verschiedene strömungstechnische Aufgaben angepasst werden, aber auch schneller gewartet werden, indem zum Beispiel eine verdreckte und/oder verstopfte Abgabeöffnung gegen eine neue saubere ausgetauscht wird.In another wall element, which is also set up for attachment to the device, may be thin for dispensing another such as water Liquid the discharge opening slit-shaped with over the slit width constant slit height. In yet another wall member also adapted for attachment to the apparatus, for discharge of another liquid, the discharge opening may be formed by, for example, a straight row of, for example, circular bores all over the width of this discharge opening area for example, have a larger diameter towards the edge. For some technical tasks, however, it is also conceivable that the discharge opening is formed in still another wall element so that the device generates a beam with over its width deliberately unevenly distributed volume flow. Essential to the invention is the diversity of the design possibilities of the discharge opening contour but the removability of the wall element with the discharge opening, which particularly preferably provides a device system allows with several wall elements with different discharge openings - or even without dispensing opening, so that the user with his Production options in such a wall element without dispensing opening a discharge opening according to its requirements only for example milled or punched. By replacing the device can thus be adapted to different fluidic tasks, but also be maintained faster, for example, by a dirty and / or clogged discharge port is replaced with a new clean.

Die Vorrichtung und darin auch das Wandungselement sind vorzugsweise aus Metall und/oder Kunststoff. Das Wandungselement kann auch aus einem von der übrigen Vorrichtung verschiedenen Werkstoff bestehen, zum Beispiel aus Kunststoff, wenn die übrige Vorrichtung (im Wesentlichen) aus Metall besteht.The device and also the wall element are preferably made of metal and / or plastic. The wall element may also consist of a different material from the rest of the device, for example of plastic, if the rest of the device consists (essentially) of metal.

Insbesondere überdeckt das Wandungselement, angesetzt an die Vorrichtung, eine Öffnung in der Vorrichtung. Dabei schließt das Wandungselement auf einem Umfang um die Flanschöffnung flüssigkeitsdicht an die Vorrichtung an, so dass die Leitungsverbindung der Abgabeöffnung mit der Zuleitungsöffnung nach außen flüssigkeitsdicht in der Vorrichtung ausgebildet ist, damit die Flüssigkeit nur durch die Zuleitungsöffnung in die Vorrichtung ein und durch die Abgabeöffnung wieder austreten kann.In particular, the wall element, fitted to the device, covers an opening in the device. In this case, the wall element on a circumference around the flange liquid-tightly connects to the device, so that the line connection of the discharge opening with the inlet opening to the outside is formed liquid-tight in the device, so that the liquid only through the inlet opening into the device and again through the discharge opening can escape.

Vorzugsweise hat das Wandungselement mindestens ein Verbindungselement, das formschlüssig mit einem Verbindungsgegenelement an der Vorrichtung (insbesondere außenseitig auf der Vorrichtung) zusammenwirkt, wenn das Wandungselement an die Vorrichtung angesetzt ist. Besonders bevorzugt weist die Vorrichtung als Verbindungsgegenelemente zwei parallele Nuten auf (wobei die Flanschöffnung zwischen den Nuten angeordnet ist), und das Wandungselement hat als Verbindungselemente Vorsprungstrukturen, zum Beispiel Stege oder Widerhaken oder Schwabenschwanzstrukturen, von denen mindestens eine jeweils in eine der Nuten eingreift und das Wandungselement flüssigkeitsdicht gegen den Umfang der Flanschöffnung gedrückt hält, wenn das Wandungselement an die Vorrichtung angesetzt ist. So kann das Wandungselement zum Abnehmen seitlich von der Vorrichtung abschiebbar ausgebildet sein.Preferably, the wall element has at least one connecting element which cooperates in a form-fitting manner with a connecting counter element on the device (in particular on the outside of the device) when the wall element is attached to the device. Particularly preferably, the device has two parallel grooves as connecting counter elements (the flange opening being arranged between the grooves), and the wall element has projection structures, for example webs or barbs or Schwabenschwanzstrukturen as connecting elements, of which at least one engages in each of the grooves and the Wandungselement liquid-tight pressed against the circumference of the flange opening holds when the wall element is attached to the device. Thus, the wall element can be designed to be pushed off the side of the device for removal.

Um der Gestalt der Abgabeöffnung platzsparend angepasst zu sein, ist auch die Flanschöffnung vorzugsweise breiter als hoch (mit entsprechender Orientierung von Höhe und Breite). Die Flanschöffnung ist dabei von einem ebenen Rand umgrenzt, gegen den eine ebene Innenfläche des Wandungselements flüssigkeitsdicht anliegt, wenn das Wandungselement an die Vorrichtung angesetzt ist. Dies kann die Flüssigkeitsdichtigkeit sicherstellen, auch wenn das Wandungselement zum Abnehmen von der Vorrichtung seitlich abschiebbar ausgebildet ist.To be adapted to the shape of the discharge opening to save space, and the flange opening is preferably wider than high (with appropriate orientation of height and width). The flange opening is bounded by a flat edge, against which a flat inner surface of the wall element liquid-tight, when the wall element is attached to the device. This can ensure the liquid-tightness, even if the wall element is designed to be laterally slidable for removal from the device.

Vorzugsweise ist die Vorrichtung ein Handwerkszeug, wobei die Zuleitungsöffnung vorzugsweise für den Anschluss einer flexiblen Zuleitung eingerichtet ist.Preferably, the device is a tool, wherein the feed opening is preferably set up for the connection of a flexible supply line.

Diese und weitere Vorteile und Merkmale der Erfindung werden anhand der folgenden Abbildungen eines Ausführungsbeispiels der Erfindung weiter beschrieben. Darin zeigen

Fig. 1
eine räumliche Ansicht einer erfindungsgemäßen Vorrichtung,
Fig. 2
eine Draufsicht auf die Vorrichtung nach Fig. 1,
Fig. 3
eine geschnittene Seitenansicht (entlang A-A in Fig. 2) der Vorrichtung nach Fig. 1 mit einer Ausschnittvergrößerung,
Fig. 4
die Seitenansicht nach Fig. 3 ungeschnitten,
Fig. 5
die Draufsicht nach Fig. 2 geschnitten (entlang B-B in Fig. 4) und
Fig. 6
eine Vorderansicht auf die Vorderseite mit der Abgabeöffnung der Vorrichtung nach Fig. 1.
These and other advantages and features of the invention will be further described with reference to the following figures of an embodiment of the invention. Show in it
Fig. 1
a spatial view of a device according to the invention,
Fig. 2
a plan view of the device according to Fig. 1 .
Fig. 3
a sectional side view (along AA in Fig. 2 ) of the device Fig. 1 with a cut-out enlargement,
Fig. 4
the side view after Fig. 3 uncut,
Fig. 5
the top view Fig. 2 cut (along BB in Fig. 4 ) and
Fig. 6
a front view of the front with the discharge opening of the device according to Fig. 1 ,

Die Vorrichtung 2 gemäß Fig. 1 bis 6 dient zum Auftragen von vernetzendem, noch flüssigem Kunststoff (nicht dargestellt) auf eine Fläche (nicht dargestellt). Die Vorrichtung 2 hat eine rohrförmige Zuleitungsöffnung 4 für den Kunststoff (mit einem Anschlussstutzen 6 für einen Zuleitungsschlauch (nicht dargestellt), um so ein Werkszeug zu bilden, das sich wegen der Flexibilität des Zuleitungsschlauchs ungehindert von Hand oder mittels Roboter bewegen lässt) sowie eine Abgabeöffnung 8 für den Kunststoff. Die Zuleitungsöffnung 4 und die Abgabeöffnung 8 stehen der Vorrichtung 2 entlang einer geraden Mittelachse 10 in Leitungsverbindung 12 mit einander. Die rohrförmige Zuleitung 4 ist um die geraden Mittelachse 10 herum kreiszylinderrohrförmig.The device 2 according to Fig. 1 to 6 is used for applying cross-linking, still liquid plastic (not shown) on a surface (not shown). The device 2 has a tubular supply port 4 for the plastic (with a connection pipe 6 for a supply hose (not shown), so as to form a tool that can move freely due to the flexibility of the supply hose by hand or by robot) and a discharge port 8 for the plastic. The feed opening 4 and the discharge opening 8 are the device 2 along a straight central axis 10 in line connection 12 with each other. The tubular supply line 4 is around the straight central axis 10 around a circular cylindrical tube.

Die Abgabeöffnung 8 ist (in Fig. 6 erkennbar) schlitzformig, also breiter ist als hoch, wobei die Spalthöhe HM in der Mitte der Spalts (über seine Breite B betrachtet) am geringsten ist, und sich von dort mittensymmetrisch nach beiden Seiten zu den Spaltenden vergrößert. So wird dem zu diesen Rändern hin leicht abfallenden Druck (aufgrund dort in den Randbereichen größerer Strömungswiderstände) in der durch die Vorrichtung 2 geleiteten Flüssigkeit Rechnung getragen: dort an den Enden wird der dort unter geringerem Druck stehenden Flüssigkeit ein geringerer Strömungswiderstand in Gestalt des größeren Strömungsquerschnitts der größeren Spalthöhen HE entgegengesetzt. Insgesamt ergibt sich daraus, dass der breite Strahl der Flüssigkeit (nicht dargestellt) mit über seine Breite gleichmäßigem Volumenstrom aus der Vorrichtung 2 austritt.The discharge opening 8 is (in Fig. 6 recognizable) slit-shaped, that is wider than high, wherein the gap height HM in the middle of the gap (viewed over its width B) is the lowest, and increases from there mittsymmetrisch to both sides to the gap ends. Thus, the pressure slightly decreasing towards these edges (due to there in the edge regions of greater flow resistance) in the guided through the device 2 Fluid taken into account: there at the ends of the lower pressure liquid there is opposed to a lower flow resistance in the shape of the larger flow cross-section of the larger gap heights HE. Overall, this results in that the broad jet of liquid (not shown) emerges from the device 2 with a uniform volume flow over its width.

Um die Geometrie und Dimensionen der Austrittsöffnung 8 genau der momentan mit der Vorrichtung 2 abgegebenen Flüssigkeit anpassen zu können, ist die Austrittsöffnung 8 in einem Wandungselement 14 angeordnet, das sich von der Vorrichtung 2 abnehmen und gegen ein anderes Wandungselement austauschen lässt, welches in Geometrie und Dimensionen der Austrittsöffnung 8 genau der nun mit der Vorrichtung 2 abzugebenden Flüssigkeit und auch den übrigen Strömungs- und Randbedingungen angepasst sein kann.In order to adjust the geometry and dimensions of the outlet opening 8 exactly the momentarily discharged with the device 2 liquid, the outlet opening 8 is arranged in a wall element 14, which can be removed from the device 2 and replace it with another wall element, which in geometry and Dimensions of the outlet opening 8 can be exactly adapted to the now to be dispensed with the device 2 liquid and the other flow and boundary conditions.

Das Wandungselement 14 und jedes andere Wandungselement mit entsprechenden Verbindungsstrukturen (26, 28 - dazu sogleich) lässt sich also wieder an die Vorrichtung 2 ansetzen und überdeckt dann wieder, angesetzt, eine Flanschöffnung 16 in der Vorrichtung 2. Auf einem Umfang um die Flanschöffnung 16 schließt das Wandungselement 14 flüssigkeitsdicht an die Vorrichtung an, so dass die Leitungsverbindung 12 der Abgabeöffnung 8 mit der Zuleitungsöffnung 4 in der Vorrichtung 2 nach außen flüssigkeitsdicht ausgebildet ist.The wall element 14 and any other wall element with corresponding connection structures (26, 28 - to this immediately) can thus be applied again to the device 2 and then covered again, attached, a flange 16 in the device 2. On a circumference around the flange 16 closes the wall member 14 liquid-tight to the device, so that the line connection 12 of the discharge opening 8 is formed with the supply port 4 in the device 2 to the outside liquid-tight.

Auch die Flanschöffnung 16 weist einen Öffnungsquerschnitt auf, der breiter ist als hoch. Der Rand 18 der Flanschöffnung 16 verläuft nämlich rechteckig, wobei das Rechteck 18, das der Rand 18 beschreibt, eine Höhe HF hat, die kleiner ist als seine Breite BF. Die Ecken 20 des Rechtecks 14 sind verrundet. Dies erleichtert die Herstellung zum Beispiel als Spritzgussbauteil - und nötigenfalls das Reinigen. Außerdem wirkt es "Totwasser"-Bereichen in den Ecken entgegen, also Bereichen zum Beispiel in scharfkantigen Ecken, wo etwa durch Adhäsionseffekte das Durchströmen und so der Austausch und schnelle Weitertransport der Flüssigkeit vermindert würde - was zum Beispiel zu vorzeitigem Vernetzen führen kann, wenn es sich bei der Flüssigkeit um vernetzenden Kunststoff handelt.Also, the flange opening 16 has an opening cross-section which is wider than high. Namely, the edge 18 of the flange opening 16 is rectangular, with the rectangle 18 described by the edge 18 having a height HF smaller than its width BF. The corners 20 of the rectangle 14 are rounded. This facilitates the production, for example as an injection-molded component - and, if necessary, the cleaning. In addition, it counteracts "dead water" areas in the corners, so areas in sharp corners, for example, where through adhesion effects, the flow and so the exchange and rapid onward transport of the liquid would be reduced - which can lead to premature cross-linking, for example the liquid is crosslinking plastic.

Der Rand 18 der Flanschöffnung 16 ist eben ausgebildet - das heißt, er liegt in einer (gedachten) Ebene (mit Blick auf Fig. 4 als gerade Linie 22 erkennbar). Gegen den ebenen Rand 18 liegt eine ebene Innenfläche 24 des Wandungselements 14 flüssigkeitsdicht an, wenn das Wandungselement 14 (wie abgebildet) an die Vorrichtung 2 angesetzt ist.The edge 18 of the flange opening 16 is flat - that is, it lies in an (imaginary) plane (with a view to Fig. 4 can be seen as straight line 22). Against the flat edge 18 is a flat inner surface 24 of the wall member 14 liquid-tight, when the wall element 14 (as shown) is attached to the device 2.

Um bei dieser ebenen Orientierung der Dichtflächen 18, 24 zueinander mit einfacher Handhabbarkeit austauschbar zu sein, ist das Wandungselement 14 in einer Richtung der Ebene 22 bezüglich der Vorrichtung 2 verschiebbar und von der Vorrichtung 2 abnehmbar-nämlich insgesamt von der Vorrichtung 2 abschiebbar ausgestaltet: das Wandungselement 14 weist als Verbindungselement zwei parallele Stege 26 auf, die formschlüssig mit je einem Verbindungsgegenelement in Gestalt einer Nut 28 (parallel zueinander außenseitig an der Vorrichtung 2) zusammenwirken, wenn das Wandungselement 14 an die Vorrichtung 2 angesetzt ist. Die Flanschöffnung 16 ist zwischen den Nuten angeordnet. Die Stege 26 sind Vorsprungstrukturen, die in ihrer Position und Dimension so auf diese der Nuten 28 sowie der Dichtflächen 18, 24 abgestimmt sind, dass sie jeweils in eine der Nuten 28 eingreifen und das Wandungselement 14 flüssigkeitsdicht gegen den Umfang 18 der Flanschöffnung 16 gedrückt halten, wenn das Wandungselement 14 an die Vorrichtung 2 angesetzt ist.In order to be interchangeable in this planar orientation of the sealing surfaces 18, 24 to each other with ease of handling, the wall element 14 is displaceable in a direction of the plane 22 with respect to the device 2 and detachable from the device 2 - namely deputable total of the device 2: Wall element 14 has as a connecting element on two parallel webs 26, the form-fitting, each with a connecting counter-element in the form of a groove 28 (parallel to each other on the outside of the Device 2) cooperate when the wall element 14 is attached to the device 2. The flange opening 16 is disposed between the grooves. The webs 26 are projection structures which are matched in their position and dimension to the grooves 28 and the sealing surfaces 18, 24 in such a way that they respectively engage in one of the grooves 28 and hold the wall element 14 in a liquid-tight manner against the periphery 18 of the flange opening 16 when the wall element 14 is attached to the device 2.

Um die Vorrichtung 2 schnell und in der Handhabung bequem direkt an den Zuleitungsschlauch (nicht dargestellt), der die Flüssigkeit heranfördert, anschließen zu können, weist die Zuleitungsöffnung 4 den Schlauchanschluss 6 in Gestalt einer kreiszylinderrohrförmigen Außenkontur mit einer umlaufenden Verdickung 6 auf, die sich in ein passendes Kupplungsgegenstück (nicht dargestellt), nämlich schlicht und einfach das Schlauchende (nicht dargestellt) des Zuleitungsschlauchs, stecken und dort zum Beispiel mit einer Schnellspannschelle (nicht dargestellt) kraft- und reibschlüssig befestigen lässt.In order to be able to connect the device 2 quickly and conveniently directly to the supply hose (not shown), which conveys the liquid, the supply line opening 4 has the hose connection 6 in the form of a circular cylindrical outer contour with a peripheral thickening 6 which extends in a suitable coupling counterpart (not shown), namely simply the hose end (not shown) of the supply hose, stuck and there, for example, with a quick-release clamp (not shown) force and frictionally secure.

Claims (6)

Vorrichtung, zum Abgeben von Flüssigkeit als breitem Strahl, mit einer Zuleitungsöffnung für die Flüssigkeit und mit einer Abgabeöffnung, die in Leitungsverbindung mit der Zuleitungsöffnung steht und einen Öffnungsquerschnitt aufweist, der breiter ist als hoch, dadurch gekennzeichnet, dass die Abgabeöffnung in einem Wandungselement ausgebildet ist, das sich von der Vorrichtung abnehmen lässt.Device for dispensing liquid as a wide jet, with a supply opening for the liquid and with a discharge opening which is in line connection with the supply opening and has an opening cross-section which is wider than high, characterized in that the discharge opening is formed in a wall element that can be removed from the device. Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Abgabeöffnung in einem Wandungselement ausgebildet ist, das sich von der Vorrichtung abnehmen und wieder an die Vorrichtung ansetzen lässt und das, angesetzt, eine Flanschöffnung in der Vorrichtung überdeckt und auf einem Umfang um die Flanschöffnung flüssigkeitsdicht an die Vorrichtung anschließt, so dass die Leitungsverbindung der Abgabeöffnung mit der Zuleitungsöffnung nach außen flüssigkeitsdicht in der Vorrichtung ausgebildet ist.Device according to the preceding claim, characterized in that the discharge opening is formed in a wall element , which can be detached from the device and can be attached to the device again and, attached, covers a flange opening in the device and is liquid-tight on a circumference around the flange opening connects to the device, so that the line connection of the discharge opening with the inlet opening to the outside is formed liquid-tight in the device. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Wandungselement ein Verbindungselement aufweist, das formschlüssig mit einem Verbindungsgegenelement an der Vorrichtung zusammenwirkt, wenn das Wandungselement an die Vorrichtung angesetzt ist.Device according to one of the preceding claims, characterized in that the wall element has a connecting element which cooperates positively with a connecting counter-element on the device, when the wall element is attached to the device. Vorrichtung nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Vorrichtung als Verbindungsgegenelemente zwei parallele Nuten aufweist und dass die Flanschöffnung zwischen den Nuten angeordnet ist und dass das Wandungselement als Verbindungselement Vorsprungstrukturen aufweist, von denen mindestens eine jeweils in eine der Nuten eingreift und das Wandungselement flüssigkeitsdicht gegen den Umfang der Flanschöffnung gedrückt hält, wenn das Wandungselement an die Vorrichtung angesetzt ist.Device according to the preceding claim, characterized in that the device has as connecting counter-elements two parallel grooves and that the flange opening is arranged between the grooves and that the wall element has as connecting element projection structures, of which at least one engages in one of the grooves and the wall element liquid-tight holds pressed against the circumference of the flange opening when the wall element is attached to the device. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Flanschöffnung breiter ist als hoch und von einem ebenen Rand umgrenzt ist, gegen den eine ebene Innenfläche des Wandungselements flüssigkeitsdicht anliegt, wenn das Wandungselement an die Vorrichtung angesetzt ist.Device according to one of the preceding claims, characterized in that the flange opening is wider than is high and bounded by a flat edge against which a flat inner surface of the wall element liquid-tight, when the wall element is attached to the device. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung ein Handwerkszeug ist und dass die Zuleitungsöffnung für den Anschluss einer flexiblen Zuleitung eingerichtet ist.Device according to one of the preceding claims, characterized in that the device is a Handwerkszeug and that the supply opening is adapted for the connection of a flexible supply line.
EP13005741.7A 2012-12-10 2013-12-10 Device for applying in particular pasty plastic material onto a surface Active EP2740544B1 (en)

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WO2024062455A1 (en) * 2022-09-23 2024-03-28 3M Innovative Properties Company Fluid nozzle and fluid system

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US6394369B2 (en) * 1999-12-22 2002-05-28 Visteon Global Tech., Inc. Nozzle
EP1210985A1 (en) * 2000-11-29 2002-06-05 Sulzer Chemtech AG Adaptator for a static mixer
DE202006004738U1 (en) * 2006-03-24 2006-06-01 Euro-Lock-Vertriebs-Gmbh Device for mixing of two fluids, especially two adhesive components of two-component adhesive system, has adapter element exchangeable on syringe body and mixing device exchangeable on adapter element

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WO2024062455A1 (en) * 2022-09-23 2024-03-28 3M Innovative Properties Company Fluid nozzle and fluid system

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