EP0841097B1 - Spray coating device - Google Patents

Spray coating device Download PDF

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Publication number
EP0841097B1
EP0841097B1 EP97118187A EP97118187A EP0841097B1 EP 0841097 B1 EP0841097 B1 EP 0841097B1 EP 97118187 A EP97118187 A EP 97118187A EP 97118187 A EP97118187 A EP 97118187A EP 0841097 B1 EP0841097 B1 EP 0841097B1
Authority
EP
European Patent Office
Prior art keywords
spray
carrier element
turning
clamp
spray device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97118187A
Other languages
German (de)
French (fr)
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EP0841097A3 (en
EP0841097A2 (en
Inventor
Manfred Dankert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carlisle Fluid Technologies Germany GmbH
Original Assignee
ITW Oberflaechentechnik GmbH
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Publication date
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Publication of EP0841097A2 publication Critical patent/EP0841097A2/en
Publication of EP0841097A3 publication Critical patent/EP0841097A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/08Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter

Definitions

  • the invention relates to a spray coating device for Coating material according to the preamble of claim 1.
  • DE 40 22 643 C1 is a spray coating device known of this type, in which a powder gun for the electrostatic powder coating using a first sleeve an electrical contact axis is screwed and a second sleeve is screwed into a gun holder.
  • a powder gun for the electrostatic powder coating using a first sleeve an electrical contact axis is screwed and a second sleeve is screwed into a gun holder.
  • To the Coupling the two sleeves is the second sleeve on the Contact axis plugged on, under a certain rotational position inserted into this first sleeve with respect to the first sleeve and then the two sleeves are rotated relative to each other to radial projections of the second sleeve in inner circumferential undercuts the first sleeve.
  • Between Parts are provided with sealing rings.
  • a powder line connection. and a compressed air connection of the powder gun are from the Gun holder separated.
  • a shower head is known from EP 0 856 361 A2, which was not published before parts arranged in an outer housing and a sealing ring through a threaded ring that can be screwed into the outer housing being held.
  • DE-A-44 16 311 is a sprayer fastening device known in which two assemblies connected to each other by a coupling bolt and by a pneumatic clamping pistons are clamped together without shaking.
  • spray device between spraying devices with electrodes, which are connected to a high voltage source in order electrostatic charging of the liquid (e.g. DE-A-26 33 687) or powder coating material to generate and spray devices without such electrodes.
  • the object of the invention is to solve a problem
  • the focus is on the connection simply constructed and therefore cheaper to manufacture.
  • the invention has the following advantages:
  • the combined Rotary clamp connection it is possible to use the spray device and the carrier element with a mechanical connection to connect wobble-free, without further measures to have to fall back.
  • the manufacturing costs are lower.
  • By quickly joining and loosening the connection can reduce the downtime of spray coating equipment be reduced.
  • the spray coater shown in the drawings shows a spray device 2, which coating material sprayed as a spray jet 52.
  • the river of the coating material to a nozzle 54 takes place through a fluid channel 26, which is an adapter 46, a Carrier plate 4 and the spray device 2 along a Arrow 48 extends.
  • the adapter 46 is for mounting on one Robot, lift stand, handle or other carrier 70 designed.
  • a twist-tension lock 6.7 is in two twist-tension connection means 6.7 split.
  • the first twist-tension lanyard 6 represents the axis of rotation 44 for the entire locking mechanism. It has a first Closure part 8 on the spray device 2 and a second Closure part 10 on the carrier plate 4.
  • the second twist-tension connection means 7 and a locking means 34 are arranged at a radial distance from the axis of rotation 44.
  • the second twist-tension connection means 7 also exists from two shooting parts, one of which is located on the Spray device 2 and the other on the carrier plate 4th located. To close the turn-lock fastener the first closure part 8 of the spray device 2 in the second closure part 10 of the carrier plate 4 inserted.
  • Fig. 2 shows the spray device 2, without the removed support plate 4. That is, the view falls directly on the parting plane 12 between the spray device 2 and the support plate 4.
  • the first closure part 8 of the first twist-tension connection means 6 is in a plan view to recognize. It is not located in the center of the tension forces between the fluid channels 24, 26, 28, 30, 32, which makes the second twist-tension connection means 7 necessary. However, it is also conceivable to arrange the first rotary-tensioning connecting means 6 such that when the connection is closed in the center of the tensioning forces between the fluid channels 24, 26, 28, 30, 32 and their sealing elements 14, 16, 18, 20, 22 lies, with which the second rotary-tensioning connecting means 7 could be omitted. Furthermore, the locking means 34 is shown in partial section in FIG. 2.
  • All fluid channels 24, 26, 28, 30, 32 are also visible.
  • the individual fluid channels 24, 26, 28, 30, 32 are sealed by sealing elements 14, 16, 18, 20, 22, such as, for example, O-ring seals, when the twist-tension lock is closed.
  • O-ring seals can protrude, for example, 0.4 mm from the parting plane 12 in the relaxed state and when the connection is closed they can be compressed by approximately 0.2 mm, which creates the sealing effect.
  • the O-ring seals 14, 16, 18, 20, 22 are inserted in the bore shoulders of the fluid channels 24, 26, 28, 30, 32 of the spray device 2 (or in the carrier plate 4).
  • the carrier plate 4 is in Fig. 3 in one of the spray device 2 of FIG. 2 shown folded down. Consequently, in this illustration, the connection and Connecting elements to those with reference to FIG. 2 described components visible.
  • the second is more precise Closure part 10 of the first twist-tension connection means 6 to see in which the spray device 2 with the first Closure part 8 is inserted to close the connection.
  • the fluid channels 24, 26, 28, 30, 32 shown are through the sealing elements 14, 16, 18, 20, 22 shown in FIG. 2 are sealed when closing.
  • the Unlocking button 56 to see which to open the Closure 6.7 must be pressed to the locking means 34 to solve.
  • FIG. 4 shows the first twist-tension connection means 6 in Form of a bayonet lock just before tensioning.
  • the first closure part 8 of the spray device 2 in the form of a pin provided with wings 72 already in the second closure part 10 of the carrier plate 4 in shape inserted a complementary profile slot, however not yet excited.
  • the first one can be seen in FIG. 4 Closure part 8, each with a clamping surface 36 and one sloping ramp 40 on its wings 72, which together with counter-clamping surfaces 37 of the carrier plate 4, at a relative rotation 50 about the axis of rotation 44 the required Voltage for sealing the fluid channels 24, 26, 28, Build up 30,32 with the sealing elements 14,16,18,20,22.
  • Fig. 5 shows the first rotary clamping connection means 6 of the Fig. 4 in the tensioned position.
  • the pair of clamping surfaces 36.37 now engaged with each other.
  • a rotation in the direction of arrow 50 around the Axis of rotation 44 causes so that the spray device 2, by means of the inclined ramp surface 40 of the first Closure part 8 by engagement on the second closure part 10, moved towards the carrier plate 4.
  • the tension to Sealing of the fluid channels 24, 26, 28, 30, 32 is performed by the Compression of the sealing elements 14,16,18,20,22 caused.
  • Fig. 6 shows the locking means 34 when the spray device 2 and the carrier plate 4 are connected by the twist-tension lock 6.7.
  • a spring element 58 and a locking bolt 60 which has a rounded head, are attached to the spray device 2.
  • the locking bolt 60 protrudes beyond a surface 62 of the spray device 2, which lies opposite a part of the carrier plate 4.
  • the rotary and tension lock 6, 7 is closed, the locking bolt 60 automatically engages in a recess 64 in the carrier plate 4.
  • the locking means 34 is unlocked in that the locking bolt 60 is pressed out of the recess 64 by hand against the force of the spring element 58 by the unlocking button 56.
  • the second twist-tension connection means 7 can also be seen in FIG. 6.
  • a sloping run-up surface part 42 of the clamping surfaces 38 and / or 39 facilitates the closing of the rotary clamping lock 6, 7.
  • One clamping surface 38 is formed on the carrier plate 4 and the other clamping surface 39 is formed opposite on the spray device 2.
  • one or several electrical lines can be provided in the Partition plane 12 on the one hand on the spray device 2 and on the other hand, contacts 66 arranged on the carrier plate 4, 68, which by the rotary-tensioning connecting means 6.7 can be related to one another at least one high voltage electrode 74 electrical To supply energy.
  • the high voltage electrode 74 serves in FIG known manner for electrically charging the coating material.

Landscapes

  • Nozzles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

The spray head (2) is coupled to the supply lines and to the mounting (4) in a simple twist lock action. The underside of the spray head has a pivot which engages a pivot coupling (6) on the mounting. The head is twisted on the mounting until the rear end is secured by a sprung grip (34). The release is obtained using a similar action. The connecting ducts for the spray head connect with their corresponding ducts in the mounting when the head is secured into place. The spray head is mounted in its holder without any external connections being required.

Description

Die Erfindung betrifft eine Sprühbeschichtungseinrichtung für Beschichtungsmaterial gemäß der Oberbegriff von Anspruch 1.The invention relates to a spray coating device for Coating material according to the preamble of claim 1.

Aus der DE 40 22 643 C1 ist eine Sprühbeschichtungseinrichtung dieser Art bekannt, bei welcher an eine Pulverpistole für die elektrostatische Pulverbeschichtung eine erste Hülse mittels einer elektrischen Kontaktachse festgeschraubt wird und eine zweite Hülse in eine Pistolenhalterung eingeschraubt wird. Zum Aneinanderkuppeln der beiden Hülsen wird die zweite Hülse auf die Kontaktachse aufgesteckt, dabei unter bestimmter Drehlage bezüglich der ersten Hülse in diese erste Hülse eingesteckt und sodann werden die beiden Hülsen relativ zueinander verdreht, um radiale Vorsprünge der zweiten Hülse in Innenumfangs-Hinterscheidungen der ersten Hülse einzudrehen. Zwischen den Teilen sind Dichtungsringe vorgesehen. Ein Pulverleitungsanschluß. und ein Druckluftanschluß der Pulverpistole sind von der Pistolenhalterung getrennt.DE 40 22 643 C1 is a spray coating device known of this type, in which a powder gun for the electrostatic powder coating using a first sleeve an electrical contact axis is screwed and a second sleeve is screwed into a gun holder. To the Coupling the two sleeves is the second sleeve on the Contact axis plugged on, under a certain rotational position inserted into this first sleeve with respect to the first sleeve and then the two sleeves are rotated relative to each other to radial projections of the second sleeve in inner circumferential undercuts the first sleeve. Between Parts are provided with sealing rings. A powder line connection. and a compressed air connection of the powder gun are from the Gun holder separated.

Aus der nicht vor veröffentlichten EP 0 856 361 A2 ist ein Duschkopf bekannt, bei welchem in einem äußeren Gehäuse angeordnete Teile und ein Dichtungsring durch einen in das äußere Gehäuse einschraubbaren Gewindering gehalten werden.A shower head is known from EP 0 856 361 A2, which was not published before parts arranged in an outer housing and a sealing ring through a threaded ring that can be screwed into the outer housing being held.

Aus der DE-G 93 14 781.3 U1 ist eine Verbindungseinrichtung zum Verbinden zweier Bauteile bekannt. Ein Verbindungsteil mit einem Ansatz wird durch einen unrunden Durchbruch im einen Bauteil gesteckt und anschließend verdreht, so daß der Ansatz dieses Bauteil hintergreift und ein radialer Fortsatz des Verbindungsteiles in einen runden Durchbruch dieses Bauteils eingreift zur Drehsicherung.From DE-G 93 14 781.3 U1 a connection device for Connecting two components known. A connector with one Approach is made by a non-circular breakthrough in one component inserted and then twisted so that the approach of this Component engages and a radial extension of the Connection part in a round breakthrough of this component intervenes to prevent rotation.

Aus der DE-A-44 16 311 ist eine Sprühgerät-Befestigungsvorrichtung bekannt, bei welcher zwei Baugruppen durch einen Kupplungsbolzen miteinander verbunden und durch einen pneumatischen Spannkolben wackelfrei miteinander verspannt sind. Unter der allgemeinen Bezeichnung Sprühvorrichtung unterscheidet man zwischen Sprühvorrichtungen mit Elektroden, welche mit einer Hochspannungsquelle verbunden sind, um eine elektrostatische Aufladung des flüssigen (z.B. DE-A-26 33 687) oder pulverförmigen Beschichtungsmaterials zu erzeugen, und Sprühvorrichtungen ohne solche Elektroden.DE-A-44 16 311 is a sprayer fastening device known in which two assemblies connected to each other by a coupling bolt and by a pneumatic clamping pistons are clamped together without shaking. Differentiates under the general name spray device between spraying devices with electrodes, which are connected to a high voltage source in order electrostatic charging of the liquid (e.g. DE-A-26 33 687) or powder coating material to generate and spray devices without such electrodes.

Durch die Erfindung soll die Aufgabe gelöst werden, eine Sprühbeschichtungseinrichtung zur Verfügung zu stellen, mit der es ermöglicht wird, eine Sprühbeschichtungsvorrichtung und ein Trägerelement schnell und unkompliziert miteinander wackelfrei zu verbinden und sie wahlweise wieder schnell zu trennen. Dabei steht im Vordergrund, daß die Verbindung einfach aufgebaut und deshalb billiger herstellbar ist.The object of the invention is to solve a problem To provide spray coating device with which enables a spray coating device and a support element together quickly and easily connect wobble-free and selectively fast again separate. The focus is on the connection simply constructed and therefore cheaper to manufacture.

Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.This object is achieved according to the invention by the characterizing features of claim 1 solved.

Die Erfindung hat folgende Vorteile: Durch die kombinierte Dreh-Spann-Verbindung ist es möglich die Sprühvorrichtung und das Trägerelement mit einer mechanischen Verbindung wackelfrei zu verbinden, ohne auf weitere Maßnahmen zurückgreifen zu müssen. Die Herstellungskosten sind geringer. Durch das schnelle Fügen und Lösen der Verbindung können die Stillstandzeiten von Sprühbeschichtungseinrichtungen reduziert werden.The invention has the following advantages: The combined Rotary clamp connection, it is possible to use the spray device and the carrier element with a mechanical connection to connect wobble-free, without further measures to have to fall back. The manufacturing costs are lower. By quickly joining and loosening the connection can reduce the downtime of spray coating equipment be reduced.

Die Erfindung wird im folgenden mit Bezug auf die Zeichnungen anhand einer bevorzugten Ausführungsform als Beispiel beschrieben. In den Zeichnungen zeigen

Fig. 1
die Sprühvorrichtung und das Trägerelement in der gefügten, verriegelten Stellung, wobei das Trägerelement auf einem Adapter montiert ist;
Fig. 2
die Trennebene der Sprühvorrichtung, wenn das Trägerelement gelöst und weggenommen ist;
Fig. 3
die Trennebene des Trägerelements, wenn die Sprühvorrichtung gelöst und weggenommen ist;
Fig. 4
einen vergrößerten Ausschnitt der Sprühvorrichtung und des Trägerelements an einem ersten mechanischen Dreh-Spann-Verbindungsmittel im Schnitt, wobei die Verbindung noch gelöst ist;
Fig. 5
einen vergrößerten Ausschnitt der Sprühvorrichtung und des Trägerelements am ersten mechanischen Dreh-Spann-Verbindungsmittel im Schnitt, wobei die Verbindung nun gespannt ist;
Fig. 6
einen vergrößerten Ausschnitt der Sprühvorrichtung und des Trägerelements im verbundenen, gespannten Zustand, an der Stelle eines Verriegelungsmittels und eines zweiten Dreh-Spann-Verbindungsmittels, im Schnitt.
Fig. 7
eine Ansicht, in der man erkennen kann, wie die Sprühvorrichtung und das Trägerelement durch eine Drehung gespannt oder entspannt werden können.
The invention is described below with reference to the drawings using a preferred embodiment as an example. Show in the drawings
Fig. 1
the spray device and the carrier element in the assembled, locked position, the carrier element being mounted on an adapter;
Fig. 2
the parting plane of the spray device when the carrier element is detached and removed;
Fig. 3
the parting plane of the carrier element when the spray device is released and removed;
Fig. 4
an enlarged section of the spraying device and the carrier element on a first mechanical rotary clamping connection means in section, wherein the connection is still released;
Fig. 5
an enlarged section of the spraying device and the carrier element on the first mechanical rotary clamping connection means in section, the connection now being tensioned;
Fig. 6
an enlarged section of the spray device and the carrier element in the connected, tensioned state, in the place of a locking means and a second rotary-clamping connection means, in section.
Fig. 7
a view in which one can see how the spray device and the support member can be tensioned or relaxed by rotation.

Die in den Zeichnungen dargestellte Sprühbeschichtungsvorrichtung zeigt eine Sprühvorrichtung 2, welche Beschichtungsmaterial als Sprühstrahl 52 versprüht. Der Fluß des Beschichtungsmaterials zu einer Düse 54 erfolgt durch einen Fluidkanal 26, der sich durch einen Adapter 46, eine Trägerplatte 4 und die Sprühvorrichtung 2 entlang eines Pfeiles 48 erstreckt. Dem selben Verlauf folgen außerdem die nötigen Verfahrenshilfsmittel, wie z.B. ein Fluidkanal 24 für Formungsluft 25 an Hörnern 27 zum Formen des Sprühstrahls 52; ein Fluidkanal 30 für Zerstäuberluft zur Unterstützung der Zerstäubung des Beschichtungsmaterials; ein Fluidkanal 32 für Steuerluft zur Betätigung einer Ventilnadel (nicht gezeigt, da bekannt) in der Sprühvorrichtung 2; ein Fluidkanal 28 zur Rückführung und Rezirkulation des Beschichtungsmaterials während Sprühpausen. Der Adapter 46 ist für die Montage an einem Roboter, Hubständer, Handgriff oder anderen Träger 70 ausgelegt. Ein Dreh-Spann-Verschluß 6,7 ist in zwei Dreh-Spann-Verbindungsmittel 6,7 aufgeteilt. Das erste Dreh-Spann-Verbindungsmittel 6 stellt die Drehachse 44 für den gesamten Verschlußmechanismus dar. Es besitzt einen ersten Verschlußteil 8 an der Sprühvorrichtung 2 und einen zweiten Verschlußteil 10 an der Trägerplatte 4. Das zweite Dreh-Spann-Verbindungsmittel 7 und ein Verriegelungsmittel 34 sind mit radialem Abstand von der Drehachse 44 angeordnet. Das zweite Dreh-Spann-Verbindungsmittel 7 besteht ebenso aus zwei Verschußteilen, von denen sich eines an der Sprühvorrichtung 2 und das andere an der Trägerplatte 4 befindet. Zum Schließen des Dreh-Spann-Verschlusses wird der erste Verschlußteil 8 der Sprühvorrichtung 2 in den zweiten Verschlußteil 10 der Trägerplatte 4 gesteckt. Durch eine relative Drehung 50 der Sprühvorrichtung 2 und der Trägerplatte 4 gegeneinander werden die beiden Komponenten durch die beiden Dreh-Spann-Verbindungsmittel 6,7 gegeneinander gezogen und dann durch das Verriegelungsmittel 34 gegen Verdrehen gesichert. Zum Lösen der Verbindung muß ein Entriegelungsknopf 56 am Verriegelungsmittel 34 gedrückt werden. Die Sprühvorrichtung 2 und die Trägerplatte 4 können dann in entgegengesetzter Richtung 51 gedreht werden, womit die Sprühvorrichtung 2 abgenommen werden kann. The spray coater shown in the drawings shows a spray device 2, which coating material sprayed as a spray jet 52. The river of the coating material to a nozzle 54 takes place through a fluid channel 26, which is an adapter 46, a Carrier plate 4 and the spray device 2 along a Arrow 48 extends. The same course also follow the necessary process aids, e.g. a fluid channel 24 for shaping air 25 on horns 27 for shaping the Spray 52; a fluid channel 30 for atomizing air Support the atomization of the coating material; a fluid channel 32 for control air for actuating a Valve needle (not shown since known) in the spray device 2; a fluid channel 28 for return and Recirculation of the coating material during spray breaks. The adapter 46 is for mounting on one Robot, lift stand, handle or other carrier 70 designed. A twist-tension lock 6.7 is in two twist-tension connection means 6.7 split. The first twist-tension lanyard 6 represents the axis of rotation 44 for the entire locking mechanism. It has a first Closure part 8 on the spray device 2 and a second Closure part 10 on the carrier plate 4. The second twist-tension connection means 7 and a locking means 34 are arranged at a radial distance from the axis of rotation 44. The second twist-tension connection means 7 also exists from two shooting parts, one of which is located on the Spray device 2 and the other on the carrier plate 4th located. To close the turn-lock fastener the first closure part 8 of the spray device 2 in the second closure part 10 of the carrier plate 4 inserted. By a relative rotation 50 of the spray device 2 and the Carrier plate 4 against each other are the two components by the two rotary-clamping connection means 6.7 against each other pulled and then through the locking means 34th secured against twisting. To release the connection, a Unlocking button 56 pressed on locking means 34 become. The spray device 2 and the carrier plate 4 can then be rotated in the opposite direction 51 with which the spray device 2 can be removed can.

Fig. 2 zeigt die Sprühvorrichtung 2, ohne die abgenommene Trägerplatte 4. Das heißt, der Blick fällt direkt auf die Trennebene 12 zwischen der Sprühvorrichtung 2 und der Trägerplatte 4. Der erste Verschlußteil 8 des ersten Dreh-Spann-Verbundungsmittels 6 ist in einer Draufsicht zu erkennen. Er liegt hier nicht im Spannkräfte-Zentrum zwischen den Fluidkanälen 24,26,28,30,32, was das zweite Dreh-Spann-Verbindungsmittel 7 erforderlich macht. Es ist allerdings auch denkbar das erste Dreh-Spann-Verbindungsmittel 6 so anzuordnen, daß es beim Schließen der Verbindung im Spannkräfte-Zentrum zwischen den Fluidkanäle 24,26,28,30,32 und deren Dichtungselemente 14,16,18,20,22 liegt, womit das zweite Dreh-Spann-Verbindungsmittel 7 weggelassen werden könnte.
Desweiteren ist in Fig. 2 das Verriegelungsmittel 34 im Teilschnitt dargestellt. Sichtbar sind außerdem alle Fluidkanäle 24,26,28,30,32. Die einzelnen Fluidkanäle 24,26,28, 30,32 werden durch Dichtungselemente 14,16,18,20,22, wie z.B. O-Ring-Dichtungen, beim Schließen des Dreh-Spann-Verschlusses abgedichtet. O-Ring-Dichtungen können beispielsweise im entspannten Zustand um 0,4 mm aus der Trennebene 12 hervorstehen und beim Schließen der Verbindung können sie um ca. 0,2 mm komprimiert werden, wodurch der Abdichtungseffekt entsteht. Die O-Ring-Dichtungen 14,16,18, 20,22 sind in Bohrungs-Absätze der Fluidkanäle 24,26,28,30, 32 der Sprühvorrichtung 2 (oder in der Trägerplatte 4) eingesetzt.
Fig. 2 shows the spray device 2, without the removed support plate 4. That is, the view falls directly on the parting plane 12 between the spray device 2 and the support plate 4. The first closure part 8 of the first twist-tension connection means 6 is in a plan view to recognize. It is not located in the center of the tension forces between the fluid channels 24, 26, 28, 30, 32, which makes the second twist-tension connection means 7 necessary. However, it is also conceivable to arrange the first rotary-tensioning connecting means 6 such that when the connection is closed in the center of the tensioning forces between the fluid channels 24, 26, 28, 30, 32 and their sealing elements 14, 16, 18, 20, 22 lies, with which the second rotary-tensioning connecting means 7 could be omitted.
Furthermore, the locking means 34 is shown in partial section in FIG. 2. All fluid channels 24, 26, 28, 30, 32 are also visible. The individual fluid channels 24, 26, 28, 30, 32 are sealed by sealing elements 14, 16, 18, 20, 22, such as, for example, O-ring seals, when the twist-tension lock is closed. O-ring seals can protrude, for example, 0.4 mm from the parting plane 12 in the relaxed state and when the connection is closed they can be compressed by approximately 0.2 mm, which creates the sealing effect. The O-ring seals 14, 16, 18, 20, 22 are inserted in the bore shoulders of the fluid channels 24, 26, 28, 30, 32 of the spray device 2 (or in the carrier plate 4).

Die Trägerplatte 4 ist in Fig. 3 in einem von der Sprühvorrichtung 2 der Fig. 2 heruntergeklappten Zustand dargestellt. Folglich sind in dieser Darstellung die Anschlußund Verbindungselemente zu den mit Bezug auf Fig. 2 beschriebenen Komponenten sichtbar. Genauer ist das zweite Verschlußteil 10 des ersten Dreh-Spann-Verbindungsmittels 6 zu sehen, in das die Sprühvorrichtung 2 mit dem ersten Verschlußteil 8 zum Schließen der Verbindung gesteckt wird. Die dargestellten Fluidkanäle 24,26,28,30,32 werden durch die Dichtungselemente 14,16,18,20,22, die in Fig. 2 dargestellt sind, beim Schließen abgedichtet. Weiterhin ist der Entriegelungsknopf 56 zu sehen, welcher zum Öffnen des Verschlusses 6,7 gedrückt werden muß, um das Verriegelungsmittel 34 zu lösen.The carrier plate 4 is in Fig. 3 in one of the spray device 2 of FIG. 2 shown folded down. Consequently, in this illustration, the connection and Connecting elements to those with reference to FIG. 2 described components visible. The second is more precise Closure part 10 of the first twist-tension connection means 6 to see in which the spray device 2 with the first Closure part 8 is inserted to close the connection. The fluid channels 24, 26, 28, 30, 32 shown are through the sealing elements 14, 16, 18, 20, 22 shown in FIG. 2 are sealed when closing. Furthermore, the Unlocking button 56 to see which to open the Closure 6.7 must be pressed to the locking means 34 to solve.

Fig. 4 zeigt das erste Dreh-Spann-Verbindungsmittel 6 in Form eines Bajonette-Verschlusses kurz vor dem Spannen. Dabei ist der erste Verschlußteil 8 der Sprühvorrichtung 2 in Form eines mit Flügeln 72 versehenen Zapfens bereits in den zweiten Verschlußteil 10 der Trägerplatte 4 in Form eines komplementären Profilschlitzes hineingesteckt, jedoch noch nicht gespannt. Zu erkennen ist in Fig. 4 der erste Verschlußteil 8 mit je einer Spannfläche 36 und einer schrägen Auflauffläche 40 auf seinen Flügeln 72, welche zusammen mit Gegen-Spannflächen 37 der Trägerplatte 4, bei einer relativen Drehung 50 um die Drehachse 44 die erforderliche Spannung zum Abdichten der Fluidkanäle 24,26,28, 30,32 mit den Dichtungselementen 14,16,18,20,22 aufbauen.4 shows the first twist-tension connection means 6 in Form of a bayonet lock just before tensioning. The first closure part 8 of the spray device 2 in the form of a pin provided with wings 72 already in the second closure part 10 of the carrier plate 4 in shape inserted a complementary profile slot, however not yet excited. The first one can be seen in FIG. 4 Closure part 8, each with a clamping surface 36 and one sloping ramp 40 on its wings 72, which together with counter-clamping surfaces 37 of the carrier plate 4, at a relative rotation 50 about the axis of rotation 44 the required Voltage for sealing the fluid channels 24, 26, 28, Build up 30,32 with the sealing elements 14,16,18,20,22.

Fig. 5 zeigt das erste Dreh-Spann-Verbindungsmittel 6 der Fig. 4 in der verspannten Stellung. Dabei ist das Spannflächenpaar 36,37 nun im Eingriff miteinander. Um dies zu erreichen wurde eine Drehung in Pfeilrichtung 50 um die Drehachse 44 veranlaßt, so daß sich die Sprühvorrichtung 2, mittels der schrägen Auflauffläche 40 des ersten Verschlußteils 8 durch Eingriff am zweiten Verschlußteil 10, auf die Trägerplatte 4 zubewegt. Die Spannung zum Abdichten der Fluidkanäle 24,26,28,30,32 wird durch die Komprimierung der Dichtungselemente 14,16,18,20,22 verursacht. Fig. 5 shows the first rotary clamping connection means 6 of the Fig. 4 in the tensioned position. Here is the pair of clamping surfaces 36.37 now engaged with each other. To do this was achieved a rotation in the direction of arrow 50 around the Axis of rotation 44 causes so that the spray device 2, by means of the inclined ramp surface 40 of the first Closure part 8 by engagement on the second closure part 10, moved towards the carrier plate 4. The tension to Sealing of the fluid channels 24, 26, 28, 30, 32 is performed by the Compression of the sealing elements 14,16,18,20,22 caused.

Fig. 6 zeigt das Verriegelungsmittel 34, wenn die Sprühvorrichtung 2 und die Trägerplatte 4 durch den Dreh-Spann-Verschluß 6,7 verbunden sind. Ein Federelement 58 und ein Verriegelungsbolzen 60, welcher einen abgerundeten Kopf aufweist, sind an der Sprühvorrichtung 2 angebracht. Im unverriegelten Zustand ragt der Verriegelungsbolzen 60 über eine Fläche 62 der Sprühvorrichtung 2 hinaus, die einem Teil der Trägerplatte 4 gegenüberliegt. Beim Schließen des Dreh-Spann-Verschlusses 6,7 rastet der Verriegelungsbolzen 60 automatisch in eine Vertiefung 64 der Trägerplatte 4 ein. Entriegelt wird das Verriegelungsmittel 34, indem der Verriegelungsbolzen 60 durch den Entriegelungsknopf 56 von Hand entgegen der Kraft des Federelements 58 aus der Vertiefung 64 herausgedrückt wird.
Das zweite Dreh-Spann-Verbindungsmittel 7 ist in Fig. 6 ebenfalls zu sehen. Es besteht aus einem Spannflächenpaar 38,39, das in der verbundenen Stellung dargestellt ist und die Anpreßkraft auf die Dichtungselemente 14,16,18,20,22 erhöht, wodurch sichergestellt wird, daß die Fluidkanäle 24,26,28,30,32 abgedichtet werden. Es ist aber auch denkbar, die nötige Anpreßkraft ohne diese zweiten Dreh-Spann-Verbindungsmittel 7 aufzubringen. Ein schräger Auflaufflächenteil 42 der Spannflächen 38 und/oder 39 erleichtert das Schließen des Dreh-Spann-Verschlusses 6,7. Die eine Spannfläche 38 ist an der Trägerplatte 4 und die andere Spannfläche 39 ist gegenüberliegend an der Sprühvorrichtung 2 gebildet.
Fig. 6 shows the locking means 34 when the spray device 2 and the carrier plate 4 are connected by the twist-tension lock 6.7. A spring element 58 and a locking bolt 60, which has a rounded head, are attached to the spray device 2. In the unlocked state, the locking bolt 60 protrudes beyond a surface 62 of the spray device 2, which lies opposite a part of the carrier plate 4. When the rotary and tension lock 6, 7 is closed, the locking bolt 60 automatically engages in a recess 64 in the carrier plate 4. The locking means 34 is unlocked in that the locking bolt 60 is pressed out of the recess 64 by hand against the force of the spring element 58 by the unlocking button 56.
The second twist-tension connection means 7 can also be seen in FIG. 6. It consists of a pair of clamping surfaces 38, 39, which is shown in the connected position and increases the contact pressure on the sealing elements 14, 16, 18, 20, 22, thereby ensuring that the fluid channels 24, 26, 28, 30, 32 are sealed become. However, it is also conceivable to apply the necessary contact pressure without these second torsion-clamping connecting means 7. A sloping run-up surface part 42 of the clamping surfaces 38 and / or 39 facilitates the closing of the rotary clamping lock 6, 7. One clamping surface 38 is formed on the carrier plate 4 and the other clamping surface 39 is formed opposite on the spray device 2.

Fig. 7 zeigt die Sprühvorrichtung 2 und die Trägerplatte 4 so, daß sie im Zustand kurz vor dem Drehen 50 zum Schließen der Verbindung sind, wobei die beiden Verschlußteile 8,10 des ersten Dreh-Spann-Verbindungsmittels 6, welches die Drehachse 44 bildet, bereits ineinander gesteckt sind, oder kurz nach dem Öffnen der Verbindung durch eine Drehung in Richtung des Pfeiles 51, wobei die Sprühvorrichtung 2 und die Trägerplatte 4 noch ineinander stecken.7 shows the spray device 2 and the carrier plate 4 so that they close in the state just before turning 50 are the connection, the two closure parts 8,10 of the first rotary-clamping connection means 6, which the Axis of rotation 44 forms, are already inserted into each other, or shortly after opening the connection by turning in Direction of arrow 51, the spray device 2 and still insert the carrier plate 4 into each other.

Die beiden Dreh-Spann-Verbindungsmittel 6 und 7 gewährleisten jedes für sich, und insbesondere in Kombination miteinander, eine sichere Verbindung der Fluidkanäle 24,26, 28,30,32 und einen wackelfreien Halt der Sprühvorrichtung 2 an der Trägerplatte 4.Ensure the two twist-tension connection means 6 and 7 each individually, and especially in combination with each other, a secure connection of the fluid channels 24, 26, 28, 30, 32 and a wobble-free hold of the spray device 2 on the carrier plate 4.

Gleich wie die Fluidkanäle 24,26,28,30,32 können eine oder mehrere elektrische Leitungen vorgesehen sein, die in der Trennebene 12 einerseits an der Sprühvorrichtung 2 und andererseits an der Trägerplatte 4 angeordnete Kontakte 66, 68 haben, welche durch die Dreh-Spann-Verbindungsmittel 6,7 miteinander in Verbindung gebracht werden können, um mindestens einer Hochspannungselektrode 74 elektrische Energie zuzuführen. Die Hochspannungselektrode 74 dient in bekannter Weise zur elektrischen Aufladung des Beschichtungsmaterials. Just like the fluid channels 24, 26, 28, 30, 32, one or several electrical lines can be provided in the Partition plane 12 on the one hand on the spray device 2 and on the other hand, contacts 66 arranged on the carrier plate 4, 68, which by the rotary-tensioning connecting means 6.7 can be related to one another at least one high voltage electrode 74 electrical To supply energy. The high voltage electrode 74 serves in FIG known manner for electrically charging the coating material.

BezugszahlenlisteLIST OF REFERENCE NUMBERS

2 -2 -
Sprühvorrichtungsprayer
4 -4 -
Trägerelementsupport element
6 -6 -
erstes Dreh-Spann-Verbindungsmittelfirst twist-tension connection means
7 -7 -
zweites Dreh-Spann-Verbindungsmittelsecond twist-tension connection means
8 -8th -
erster Verschlußteilfirst closure part
10 -10 -
zweiter Verschlußteilsecond closure part
12 -12 -
Trennebeneparting plane
14 -14 -
Dichtungselementsealing element
16 -16 -
Dichtungselementsealing element
18 -18 -
Dichtungselementsealing element
20 -20 -
Dichtungselementsealing element
22 -22 -
Dichtungselementsealing element
24 -24 -
Fluidkanal für Formungsluft (Hörnerluft)Fluid duct for shaping air (horn air)
25 -25 -
Formungsluft (Hörnerluft)Shaping air (horn air)
26 -26 -
Fluidkanal für MaterialzuführungFluid channel for material feed
27 -27 -
Hörnerhorns
28 -28 -
Fluidkanal für MaterialrückführungFluid channel for material return
30 -30 -
Fluidkanal für ZerstäuberluftFluid channel for atomizing air
32 -32 -
Fluidkanal für Betätigungsluft zur Betätigung eines Ventils für den Beschichtungsmaterialfluß zur Düse 54Fluid channel for actuating air for actuation a valve for the coating material flow to the nozzle 54
34 -34 -
Verriegelungsmittellocking means
36 -36 -
Spannfläche am ersten Verschlußteil 8 der Sprühvorrichtung 2Clamping surface on the first closure part 8 of the spray device 2
37 -37 -
Gegen-Spannfläche zu 36 am zweiten Verschlußteil 10 der Trägerplatte 4Counter clamping surface to 36 on the second locking part 10 of the carrier plate 4
38 -38 -
Spannfläche an der Trägerplatte 4 des zweiten Dreh-Spann-Verbindungsmittels 7Clamping surface on the carrier plate 4 of the second Twist-tension connector 7
39 -39 -
Gegen-Spannfläche zu 38 an der Sprühvorrichtung 2 des zweiten Dreh-Spann-Verbindungsmittels 7Counter clamping surface to 38 on the spray device 2 of the second twist-tension connection means 7
40 -40 -
schräge Auflaufflächesloping ramp
42 -42 -
schräge Auflaufflächesloping ramp
44 -44 -
Drehachse axis of rotation
46 -46 -
Adapteradapter
48 -48 -
Pfeilarrow
50 -50 -
Pfeilarrow
51 -51 -
Pfeilarrow
52 -52 -
Sprühstrahlspray
54 -54 -
Düsejet
56 -56 -
Entriegelungsknopfrelease button
58 -58 -
Federelementspring element
60 -60 -
Verriegelungsbolzenlocking bolt
62 -62 -
Flächearea
64 -64 -
Vertiefungdeepening
66 -66 -
Elektrischer KontaktElectric contact
68 -68 -
Elektrischer KontaktElectric contact
70 -70 -
Trägercarrier
72 -72 -
Flügelwing
74 -74 -
HochspannungselektrodeHigh-voltage electrode

Claims (9)

  1. Spray coating device for coating material with a spray device (2) and a carrier element (4) carrying it which are connected together through a turning-clamp-lock (6, 7), whereby the lock (6, 7) has a first locking part (8) on the spray device (2) and a second locking part (10) on the carrier element (4), which can be seated in each other and are rotatable in relation to each other, by rotating the spray device (2) and the carrier element (4) in relation to each other, whereby the two locking parts (8, 10) grip behind each other in one turning direction (50) and can be disconnected in the opposite turning direction (51) and whereby the locking parts gripping behind each other (8, 10) clamp the spray device (2) to the carrier element (4),
    characterised in that the spray device (2) and/or the carrier element (4) have in a parting plane formed between them (12) sealing elements (14, 16, 18, 20, 22) for tight sealing of fluid ducts (24, 26, 28, 30, 32) which extend from the carrier element (4) to the spray device (2), whereby these sealing elements (14, 16, 18, 20, 22) are clamped across the parting plane (12) through the stated relative rotation (50, 51) with one turning direction or are released with the opposite turning direction.
  2. Spray coating device according to claim 1,
    characterised in that to secure the connection between the spray device (2) and the carrier element (4) means of interlocking (34) are provided, which when the turning-clamp-connection (6,7) is joined lock automatically and can be unlocked to loosen the connection.
  3. Spray coating device according to claim 1 or 2,
    characterised in that the two locking parts (8,10) when seated in each other together form a turning axis (44) around which the spray device (2) and the carrier element (4) can be rotated in relation to each other (50, 51).
  4. Spray coating device according to claim 3,
    characterised in that the two locking parts (8,10) form the first turning-clamp connecting means (6), that at a radial distance from the turning axis (44) the second turning-clamp connecting means (7) are provided which in the same clamp direction, across the parting plane (12), as the first turning-clamp connecting means (6) have working clamp faces (38,39), which by rotating the spray device (2) in relation to the carrier element (4) around the axis (44) in the one turning direction (50) can be brought into the grip of the clamp or in the opposite turning direction (51) released from this grip.
  5. Spray coating device according to one of the above claims,
    characterised in that the turning-clamp-lock (6,7) has at least one clamp face pair (36, 37, 38, 39) with at least one oblique support face (40, 42).
  6. Spray coating device according to one of the claims 3 to 5, characterised in that the fluid ducts (24, 26, 28, 30, 32) are distributed around the turning axis (44) of the two locking parts (8,10).
  7. Spray coating device according to one of the above claims,
    characterised in that sealing elements (14, 16, 18, 20, 22) to seal the fluid ducts (24, 26, 28, 30, 32) in the parting plane (12) are O-ring seals.
  8. Spray coating device according to one of the above claims,
    characterised in that the carrier element (4) is fastened to an adapter (46), which in its turn can be fixed on a carrier (70), and that the fluid ducts (24, 26, 28, 30, 32) extend from the carrier (70) through the adapter (46) and then through the carrier element (4) via the parting plane (12) as far as the spray device (2).
  9. Spray coating device according to one of the above claims, characterised in that the spray device (2) and the carrier element (4) are each equipped with at least one electrical contact (66, 68), which are connected with each other when clamped through the stated rotation (50, 51) or disconnected when unclamped.
EP97118187A 1996-11-09 1997-10-20 Spray coating device Expired - Lifetime EP0841097B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19646277 1996-11-09
DE19646277A DE19646277A1 (en) 1996-11-09 1996-11-09 Spray coating device

Publications (3)

Publication Number Publication Date
EP0841097A2 EP0841097A2 (en) 1998-05-13
EP0841097A3 EP0841097A3 (en) 1998-12-02
EP0841097B1 true EP0841097B1 (en) 2002-04-10

Family

ID=7811142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97118187A Expired - Lifetime EP0841097B1 (en) 1996-11-09 1997-10-20 Spray coating device

Country Status (4)

Country Link
EP (1) EP0841097B1 (en)
JP (1) JP3872188B2 (en)
AT (1) ATE215848T1 (en)
DE (2) DE19646277A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19914040B4 (en) * 1999-03-27 2004-04-15 ITW Oberflächentechnik GmbH & Co. KG Spray gun robot adapter
FR2872717B1 (en) 2004-07-12 2006-09-15 Itw Surfaces & Finitions Sa AUTOMATIC SPRAY GUN COMPRISING A SPRAY BODY MOUNTED ON A POWER SUPPLY
DE102006019363B4 (en) 2006-04-21 2011-06-01 Krautzberger Gmbh Quick-change adapter and spray gun for mounting on a quick-change adapter
JP5010336B2 (en) * 2007-04-25 2012-08-29 アネスト岩田株式会社 Automatic spray gun for painting manifold

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH598871A5 (en) 1975-07-29 1978-05-12 Air Ind
DE4022643C1 (en) * 1990-07-17 1991-11-21 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De Electrostatic powder spray gun - has sleeve which can be screwed over contact spindle from one end
DE9117061U1 (en) * 1990-09-06 1995-06-22 Nordson Corp Application device for adhesive
AT397841B (en) * 1992-09-30 1994-07-25 Vaillant Gmbh CONNECTING DEVICE FOR CONNECTING TWO PARTS
DE4416311A1 (en) * 1994-05-09 1995-11-16 Itw Oberflaechentechnik Gmbh Sprayer attachment device
DE4418288A1 (en) * 1994-05-26 1995-11-30 Gema Volstatic Ag Electrostatic spray device

Also Published As

Publication number Publication date
ATE215848T1 (en) 2002-04-15
EP0841097A3 (en) 1998-12-02
JPH10180163A (en) 1998-07-07
DE19646277A1 (en) 1998-05-14
JP3872188B2 (en) 2007-01-24
DE59706952D1 (en) 2002-05-16
EP0841097A2 (en) 1998-05-13

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