EP2698445B1 - Method and device for coating metal parts - Google Patents

Method and device for coating metal parts Download PDF

Info

Publication number
EP2698445B1
EP2698445B1 EP13180627.5A EP13180627A EP2698445B1 EP 2698445 B1 EP2698445 B1 EP 2698445B1 EP 13180627 A EP13180627 A EP 13180627A EP 2698445 B1 EP2698445 B1 EP 2698445B1
Authority
EP
European Patent Office
Prior art keywords
coating liquid
collecting
valve
collecting container
container
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.)
Active
Application number
EP13180627.5A
Other languages
German (de)
French (fr)
Other versions
EP2698445A2 (en
EP2698445A3 (en
Inventor
Waldemar Baumann
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.)
GESI Gewindesicherungs-GmbH
Original Assignee
GESI Gewindesicherungs-GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GESI Gewindesicherungs-GmbH filed Critical GESI Gewindesicherungs-GmbH
Priority to PL13180627T priority Critical patent/PL2698445T3/en
Publication of EP2698445A2 publication Critical patent/EP2698445A2/en
Publication of EP2698445A3 publication Critical patent/EP2698445A3/en
Application granted granted Critical
Publication of EP2698445B1 publication Critical patent/EP2698445B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material

Definitions

  • the invention further relates to the use of a device according to the invention for the coating of threads or threaded parts of screws and nuts, with a coating liquid containing adhesive-containing microcapsules, and a method for coating metal parts, preferably the threads of screws and nuts, with a coating liquid containing adhesive-containing microcapsules, with a device according to the invention.
  • the screws or nuts are coated with a suspension containing microcapsules and then dried.
  • the microcapsules are destroyed.
  • the adhesive fills the space between the threads, hardens there and secures the screw connection.
  • the microcapsules used are not very resistant, since it is desirable that these be destroyed when screwing in the screw or nut. It can therefore be seen that the microcapsules can also be destroyed during the coating, which is undesirable.
  • microencapsulated adhesives are very expensive to manufacture, so minimizing losses during coating is desired.
  • a method for reusing past the workpiece on the injection molding in automatic spray systems is from the DE 22 55 914 A1 known.
  • the WO 02/04131 A1 describes a method for coating objects with adhesive and a device suitable for this purpose. Method and apparatus make use of a collecting tank for excess adhesive.
  • the US 4 325 985 A describes a method of coating screw threads with a liquid resin.
  • the collecting unit by means of a collecting line, which is provided with a valve, with at least one pressurizable collecting container in Connection is that the collecting container is further provided with a compressed air source, a vent valve and a riser, and the riser opens into the reservoir, wherein the control unit controls the valve, the vent valve and the compressed air source.
  • the coating liquid located in the collecting container can be gently transported back into the reservoir by the valve and the vent valve are closed and the collecting container is then pressurized.
  • the riser is structurally arranged such that its lower end is is below the level of the coating liquid, so that the coating liquid can escape when pressurizing the collecting container with pressure only through the riser.
  • the compressed air can be provided for example via a preferably decentralized compressor, but in particular also via a compressed air turbine.
  • the collecting container is equipped with a filling level sensor.
  • the control unit receives signals emitted by the level sensor and in response controls the valve, the bleed valve, and the compressed air source.
  • the device according to the invention is accordingly designed such that the filling level sensor determines the level of the coating liquid and transmits corresponding signals to the control unit.
  • the control unit Upon attaining a settable level of the coating liquid in the catch tank, the control unit then controls the valve, the vent valve, and the source of pressurized air to return the coating liquid to the reservoir.
  • control unit regulate valve, vent valve and compressed air source via a time program. It can be provided, for example, instead of the level detection of the level sensor, that the collecting container is emptied at regular intervals.
  • the device is equipped with two collecting containers. More preferably, the valve is designed as a three-way valve.
  • the collecting line is thus branched by means of the three-way valve, wherein both collecting lines each downstream of the three-way valve open into a collecting container. Both receptacles are also connected to the compressed air source.
  • the three-way valve is controlled so that the collecting unit is always in communication with one of the collecting container.
  • the other collecting container is thus separated and can be pressurized accordingly after closing the associated venting valve, so that the coating liquid contained therein back to the reservoir can be promoted.
  • the invention provides that the control unit synchronizes the emptying of a collecting container with the filling of the other collecting container. Knowing the approximate flow rate of the coating liquid flowing through the collecting line, the controller can be set up so that the return of the coating liquid in a collecting container is adjusted to the collecting amount of excess coating liquid in the other collecting container.
  • the time required for emptying a full collection container thus essentially corresponds to the time necessary to fill the other collection container with the same amount of coating liquid.
  • both collecting containers can be driven synchronously "in push-pull". This is particularly advantageous for a simple and low-interference design of the device according to the invention.
  • the control is thus clearly simplified, so that components such. the compressed air source, not constantly switched on and off, which has a positive effect on the life of the device according to the invention.
  • a still preferred development of the invention is characterized by a collecting unit, which is designed as a collecting tray.
  • the drip tray is particularly suitable for a coating unit which is designed for spraying the metal parts to be coated.
  • the drip tray is preferably located immediately below the coating unit and can thus catch dripping, excess coating liquid. Further, the drip tray is formed, for example, funnel-shaped, that the collected coating liquid can be passed into the collecting line.
  • the invention further provides that a supply of fresh coating liquid is provided in the collecting unit.
  • a supply of fresh coating liquid is provided in the collecting unit.
  • the invention further provides for the use of the device according to the invention for the coating of threads or threaded parts of screws and nuts, with a coating liquid containing adhesive-containing microcapsules.
  • the invention provides that the following steps are carried out with a method according to the invention: filling the storage container with coating liquid, coating the metal parts, collecting excess coating liquid in the collecting unit, introducing excess Coating liquid into the or a collecting container, closing the valve and the venting valve, pressurizing the collecting container with compressed air and thus returning the coating liquid via the riser into the reservoir, termination of compressed air supply and pressure relief by opening the vent valve, and opening the valve in the collecting line.
  • valve and the vent valve are closed only when the coating liquid has reached a preset level in the collecting container.
  • a preset level in the collecting container.
  • the inventive method further preferably provides that two collecting containers are driven alternately, wherein a collecting container receives excess coating liquid and the other collecting container is pressurized with compressed air for the purpose of returning the coating liquid. More preferably, the return conveyance of the coating liquid in a collecting container is adjusted to the collecting amount of excess coating liquid in the other collecting container. More preferably, the control of the method is a time control.
  • the inventive method can be performed with a relatively simple device according to the invention. For example, can be dispensed with an expensive and possibly fault-prone electronic control and level sensors and instead the process can be controlled by means of a relatively simple time switch.
  • a further advantageous development of the method according to the invention provides that fresh coating liquid is guided into the collecting unit. More preferably, the supplied amount of fresh coating liquid corresponds to the consumption amount of coating liquid. Thus, the amount of coating liquid in circulation can not go below a predetermined amount. Even more advantageously, the amount of coating liquid in circulation is kept constant. This is particularly advantageous when the inventive method is time-controlled, otherwise there is a risk that the circulating amount of coating liquid is too small and consequently the device according to the invention - even if only temporarily - dry, resulting in a deficient or possibly missing Can cause coating of the metal parts.
  • a device which has a reservoir 1, a control unit 3, a connected to the reservoir 1 by means of a line 5 coating unit 7.
  • a collecting unit 9 for collecting excess coating liquid is arranged, which is connected by means of a collecting line 11 with a collecting container 13.
  • the collecting line 11 is provided with a valve 15 and thus - depending on the position of the valve 15 - be interrupted.
  • the collecting container 13 is further connected to a compressed air source 17 by means of a compressed air line 19.
  • a riser 21 leads from the collecting container 13 to the reservoir 1.
  • a level sensor 23 is provided, which is in communication with the control unit 3.
  • this has a vent valve 25.
  • the control unit 3 is also connected to the valve 15, the compressed air source 17 and the vent valve 25 for controlling these.
  • excess coating liquid initially passes into the collecting unit 9, which may be formed, for example, as a collecting tray or trough, and consequently via the collecting line 11 into the collecting container 13, where the coating liquid is first collected.
  • the control unit 3 Upon reaching a definable level of the coating liquid in the collecting container 11 of the level sensor 23 sends a corresponding signal to the control unit 3, which then closes the valve 15 and the vent valve 25.
  • the collecting container 13 is acted upon with air from the compressed air source 17 via the compressed air line 19.
  • the riser 21 is arranged such that its end is below the level of the coating liquid.
  • the coating liquid is supplied via the riser 21 from the collecting container 13 when pressurizing the collecting container 13 with pressure and returns to the reservoir 1, where the coating liquid is available for coating again. If the level sensor detects 23 that the collecting container 13 is empty again or has reached a definable vacancy, he sends a corresponding signal to the control unit 3, which in turn closes the compressed air supply and the valve 15 and the vent valve 25 opens again, so that the from the collecting unit 9 collected coating liquid can flow back into the collecting container 13.
  • Fig. 2 shows a schematic representation of a device according to the invention in an embodiment with two collecting containers 13.
  • the essential structure of the device corresponds to that of the device of Fig. 1 , However, the collecting line is provided with a three-way valve 27 instead of the valve 15, which can guide the coating liquid to one of the two collecting container 13 A or B depending on the switching position.
  • the operation also essentially corresponds to that of the device from the Fig. 1 ,
  • the associated level sensor 23 sends a signal to the control unit 3 which in response actuates the three-way valve 27, closes the full sump breather valve 25 and the source of pressurized air 17 controls.
  • the coating liquid is thus conveyed back to the reservoir 1.
  • control of the device according to the invention can be provided that, depending on the flow rate of flowing through the collecting line 11 coating liquid, the three-way valve 27 and consequently the vent valves 25 and the compressed air source 17 are controlled in time, so that the filling time of a collecting container 13 essentially corresponds to the time which is necessary for emptying the other full collecting container 13.

Landscapes

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

Description

Die Erfindung betrifft eine Vorrichtung zum Beschichten von Metallteilen, vorzugsweise des Gewindes von Schrauben und Schraubenmuttern, mit einer Beschichtungsflüssigkeit, welche klebstoffhaltige Mikrokapseln enthält. Die Vorrichtung weist einen Vorratsbehälter für die Beschichtungsflüssigkeit, eine Steuereinheit, eine mit dem Vorratsbehälter mittels einer Leitung verbundene Beschichtungseinheit, und eine Auffangeinheit zum Auffangen überschüssiger Beschichtungsflüssigkeit.The invention relates to a device for coating metal parts, preferably the thread of screws and nuts, with a coating liquid containing adhesive-containing microcapsules. The apparatus comprises a reservoir for the coating liquid, a control unit, a coating unit connected to the reservoir by means of a conduit, and a collecting unit for collecting excess coating liquid.

Die Erfindung betrifft ferner die Verwendung einer erfindungsgemäßen Vorrichtung für die Beschichtung von Gewinden oder Gewindeteilen von Schrauben und Schraubenmuttern, mit einer Beschichtungsflüssigkeit, welche klebstoffhaltige Mikrokapseln enthält, und ein Verfahren zum Beschichten von Metallteilen, vorzugsweise der Gewinde von Schrauben und Schraubenmuttern mit einer Beschichtungsflüssigkeit, welche klebstoffhaltige Mikrokapseln enthält, mit einer erfindungsgemäßen Vorrichtung.The invention further relates to the use of a device according to the invention for the coating of threads or threaded parts of screws and nuts, with a coating liquid containing adhesive-containing microcapsules, and a method for coating metal parts, preferably the threads of screws and nuts, with a coating liquid containing adhesive-containing microcapsules, with a device according to the invention.

Vorrichtungen der eingangs genannten Art finden in der Regel Anwendung bei der Beschichtung von Schrauben und Schraubenmuttern mit mikroverkapselten Klebstoffen. Die Schrauben bzw. Schraubenmuttern werden mit einer Suspension beschichtet, welche Mikrokapseln enthält, und anschließend getrocknet. Beim Eindrehen der Schraube bzw. Schraubenmutter werden die Mikrokapseln zerstört. Der Klebstoff füllt den Raum zwischen den Gewinden, härtet dort aus und sichert die Schraubverbindung. Die eingesetzten Mikrokapseln sind nicht sehr widerstandsfähig, da es erwünscht ist, dass diese beim Eindrehen der Schraube bzw. Schraubenmutter zerstört werden. Es ist daher ersichtlich, dass die Mikrokapseln auch während der Beschichtung zerstört werden können, was unerwünscht ist. Ferner sind solche mikroverkapselten Klebstoffe sehr teuer in der Herstellung, so dass eine Minimierung der Verluste während der Beschichtung erwünscht ist. Dies wird bisher erreicht, indem überschüssige Beschichtungsflüssigkeit, welche als Suspension vorliegt und Mikrokapseln enthält, mittels einer Düse auf die zu beschichtenden Metallteile gesprüht oder mittels Tauchbad aufgetragen wird, wieder in einem Auffangbehälter gelangt und von dort wieder zurück zum Vorratsbehälter, üblicherweise mit einer Schlauchpumpe, gefördert wird. Beim Zurückfördern der Beschichtungsflüssigkeit werden jedoch beim Pumpvorgang Mikrokapseln zerstört, so dass die Anzahl der noch intakten Mikrokapseln, umso länger die Beschichtungsflüssigkeit im Umlauf ist, stark Abnimmt.Devices of the type mentioned initially find application in the coating of screws and nuts with microencapsulated adhesives. The screws or nuts are coated with a suspension containing microcapsules and then dried. When screwing in the screw or nut, the microcapsules are destroyed. The adhesive fills the space between the threads, hardens there and secures the screw connection. The microcapsules used are not very resistant, since it is desirable that these be destroyed when screwing in the screw or nut. It can therefore be seen that the microcapsules can also be destroyed during the coating, which is undesirable. Furthermore, such microencapsulated adhesives are very expensive to manufacture, so minimizing losses during coating is desired. This has hitherto been achieved by excess coating liquid, which is present as a suspension and contains microcapsules, sprayed by means of a nozzle on the metal parts to be coated or applied by dipping, again in a collecting container and from there back to the reservoir, usually with a peristaltic pump, is encouraged. When pumping back the coating liquid, however, microcapsules are destroyed in the pumping process, so that the number of microcapsules still intact, the longer the coating liquid is in circulation, decreases sharply.

Ein Verfahren zum Wiederverwenden von am Werkstück vorbei gegangenen Spritzgutes bei automatischen Spritzanlagen ist aus der DE 22 55 914 A1 bekannt. Die WO 02/04131 A1 beschreibt ein Verfahren zur Beschichtung von Gegenständen mit Klebstoff und eine dafür geeignete Vorrichtung. Verfahren und Vorrichtung machen Gebrauch von einem Sammeltank für überschüssigen Klebstoff.A method for reusing past the workpiece on the injection molding in automatic spray systems is from the DE 22 55 914 A1 known. The WO 02/04131 A1 describes a method for coating objects with adhesive and a device suitable for this purpose. Method and apparatus make use of a collecting tank for excess adhesive.

Die US 4 325 985 A beschreibt ein Verfahren zur Beschichtung von Schraubgewinden mit einem flüssigen Harz.The US 4 325 985 A describes a method of coating screw threads with a liquid resin.

Es ist daher Aufgabe der Erfindung, eine Vorrichtung der eingangs genannten Art anzugeben, welche eine schonende Förderung der Beschichtungsflüssigkeit gewährleisten kann und gleichwohl einfach und kostengünstig anzufertigen ist. Es ist ferner Aufgabe der Erfindung ein Verfahren der eingangs genannten Art anzugeben, welches ebenfalls die schonende Förderung der Beschichtungsflüssigkeit mit einer erfindungsgemäßen Vorrichtung sicherstellen kann.It is therefore an object of the invention to provide a device of the type mentioned, which can ensure a gentle promotion of the coating liquid and is nevertheless easy and inexpensive to customize. It is another object of the invention to provide a method of the type mentioned, which can also ensure the gentle promotion of the coating liquid with a device according to the invention.

Die Aufgabe wird bei der erfindungsgemäßen Vorrichtung dadurch gelöst, dass die Auffangeinheit mittels einer Auffangleitung, welche mit einem Ventil versehen ist, mit wenigstens einem druckbeaufschlagbaren Auffangbehälter in Verbindung steht, dass der Auffangbehälter ferner mit einer Druckluftquelle, einem Entlüftungsventil und einer Steigleitung versehen ist, und die Steigleitung in den Vorratsbehälter mündet, wobei die Steuereinheit das Ventil, das Entlüftungsventil und die Druckluftquelle regelt.The object is achieved in the device according to the invention in that the collecting unit by means of a collecting line, which is provided with a valve, with at least one pressurizable collecting container in Connection is that the collecting container is further provided with a compressed air source, a vent valve and a riser, and the riser opens into the reservoir, wherein the control unit controls the valve, the vent valve and the compressed air source.

Mit der erfindungsgemäßen Vorrichtung kann somit die sich im Auffangbehälter befindliche Beschichtungsflüssigkeit schonend zurück in den Vorratsbehälter gefördert werden, indem das Ventil und das Entlüftungsventil geschlossen werden und der Auffangbehälter anschließend mit Druck beaufschlagt wird. Die Steigleitung wird konstruktiv derart angeordnet, dass ihr unteres Ende sich unterhalb des Pegels der Beschichtungsflüssigkeit befindet, so dass die Beschichtungsflüssigkeit beim Beaufschlagen des Auffangbehälters mit Druck nur durch die Steigleitung entweichen kann.With the device according to the invention, therefore, the coating liquid located in the collecting container can be gently transported back into the reservoir by the valve and the vent valve are closed and the collecting container is then pressurized. The riser is structurally arranged such that its lower end is is below the level of the coating liquid, so that the coating liquid can escape when pressurizing the collecting container with pressure only through the riser.

Die Druckluft kann beispielsweise über einen vorzugsweise dezentralen Kompressor bereit gestellt werden, insbesondere aber auch über eine Druckluftturbine.The compressed air can be provided for example via a preferably decentralized compressor, but in particular also via a compressed air turbine.

Bei einer weiter bevorzugten Ausführungsform der Erfindung ist der Auffangbehälter mit einem Füllstandsensor ausgestattet. Weiter bevorzugt empfängt die Steuereinheit vom Füllstandsensor ausgesendete Signale und steuert als Antwort darauf das Ventil, das Entlüftungsventil und die Druckluftquelle. Die erfindungsgemäße Vorrichtung ist demgemäß derart ausgebildet, dass der Füllstandsensor den Pegel der Beschichtungsflüssigkeit ermittelt und entsprechende Signale an die Steuereinheit übermittelt. Beim Erreichen eines festlegbaren Pegels der Beschichtungsflüssigkeit im Auffangbehälter steuert dann die Steuereinheit das Ventil, das Entlüftungsventil und die Druckluftquelle, um die Beschichtungsflüssigkeit in den Vorratsbehälter zurück zu fördern.In a further preferred embodiment of the invention, the collecting container is equipped with a filling level sensor. More preferably, the control unit receives signals emitted by the level sensor and in response controls the valve, the bleed valve, and the compressed air source. The device according to the invention is accordingly designed such that the filling level sensor determines the level of the coating liquid and transmits corresponding signals to the control unit. Upon attaining a settable level of the coating liquid in the catch tank, the control unit then controls the valve, the vent valve, and the source of pressurized air to return the coating liquid to the reservoir.

Alternativ oder zusätzlich kann die Steuereinheit Ventil, Entlüftungsventil und Druckluftquelle über ein Zeitprogramm regeln. Es kann beispielsweise vorgesehen werden, statt der Pegelerfassung des Füllstandsensors, dass der Auffangbehälter in regelmäßigen Zeitabständen geleert wird.Alternatively or additionally, the control unit regulate valve, vent valve and compressed air source via a time program. It can be provided, for example, instead of the level detection of the level sensor, that the collecting container is emptied at regular intervals.

Bei einer noch bevorzugten Ausführungsform der Erfindung ist die Vorrichtung mit zwei Auffangbehältern ausgestattet. Noch bevorzugter ist das Ventil als Drei-Wege-Ventil ausgebildet. Die Auffangleitung wird somit mittels des Drei-Wege-Ventils verzweigt, wobei beide Auffangleitungen stromabwärts des Drei-Wege-Ventils jeweils in einen Auffangbehälter münden. Beide Auffangbehälter sind ferner jeweils mit der Druckluftquelle verbunden. Das Drei-Wege-Ventil wird derart gesteuert, dass die Auffangeinheit stets mit einem der Auffangbehälter in Verbindung steht. Der andere Auffangbehälter ist somit abgetrennt und kann nach Schließen des dazugehörigen Entlüftungsventils entsprechend mit Druck beaufschlagt werden, so dass die darin enthaltene Beschichtungsflüssigkeit zurück zum Vorratsbehälter gefördert werden kann. Es wird mit einer erfindungsgemäßen Vorrichtung somit vermieden, dass beim Schließen des Ventils - je nach Durchflussrate der Beschichtungsflüssigkeit und Füllstand und Fassungsvermögen des Auffangbehälters - sich ein unerwünschter Rückstau von Beschichtungsflüssigkeit in der Auffangleitung bildet, welcher im Extremfall bis zu einem Überlaufen der Auffangeinheit führen kann.In a still preferred embodiment of the invention, the device is equipped with two collecting containers. More preferably, the valve is designed as a three-way valve. The collecting line is thus branched by means of the three-way valve, wherein both collecting lines each downstream of the three-way valve open into a collecting container. Both receptacles are also connected to the compressed air source. The three-way valve is controlled so that the collecting unit is always in communication with one of the collecting container. The other collecting container is thus separated and can be pressurized accordingly after closing the associated venting valve, so that the coating liquid contained therein back to the reservoir can be promoted. It is thus avoided with a device according to the invention that when closing the valve - depending on the flow rate of the coating liquid and level and capacity of the collecting container - an undesirable backlog of coating liquid forms in the collecting line, which can lead to an overflow of the collecting unit in an extreme case.

Noch weiter bevorzugt sieht die Erfindung vor, dass die Steuereinheit das Leerfahren eines Auffangbehälters mit der Füllung des anderen Auffangbehälters synchronisiert. Bei Kenntnis der ungefähren Durchflussrate der Beschichtungsflüssigkeit, welche durch die Auffangleitung fließt, kann die Steuerung derart eingerichtet werden, dass die Rückförderung der Beschichtungsflüssigkeit in einem Auffangbehälter auf die Auffangmenge an überschüssiger Beschichtungsflüssigkeit im anderen Auffangbehälter abgestimmt wird. Die Zeit, welche zum Entleeren eines vollen Auffangbehälters notwendig ist entspricht folglich im Wesentlichen der Zeit, welche zum Füllen des anderen Auffangbehälters mit der gleichen Beschichtungsflüssigkeitsmenge notwendig ist. Somit können beide Auffangbehälter synchron "im Gegentakt" gefahren werden. Dies ist insbesondere für eine einfache und wenig störungsbehaftete Bauweise der erfindungsgemäßen Vorrichtung vorteilhaft. Insbesondere die Steuerung wird damit eindeutig vereinfacht, so dass Komponenten, wie z.B. die Druckluftquelle, nicht ständig ein- und ausgeschaltet werden müssen, was sich auf die Lebensdauer der erfindungsgemäßen Vorrichtung positiv auswirkt.Even more preferably, the invention provides that the control unit synchronizes the emptying of a collecting container with the filling of the other collecting container. Knowing the approximate flow rate of the coating liquid flowing through the collecting line, the controller can be set up so that the return of the coating liquid in a collecting container is adjusted to the collecting amount of excess coating liquid in the other collecting container. The time required for emptying a full collection container thus essentially corresponds to the time necessary to fill the other collection container with the same amount of coating liquid. Thus, both collecting containers can be driven synchronously "in push-pull". This is particularly advantageous for a simple and low-interference design of the device according to the invention. In particular, the control is thus clearly simplified, so that components such. the compressed air source, not constantly switched on and off, which has a positive effect on the life of the device according to the invention.

Eine noch bevorzugte Weiterbildung der Erfindung zeichnet sich durch eine Auffangeinheit aus, welche als Auffangschale ausgebildet ist. Die Auffangschale ist insbesondere für eine Beschichtungseinheit geeignet, welche zum Besprühen der zu beschichtenden Metallteile ausgebildet ist. Die Auffangschale ist vorzugsweise unmittelbar unter der Beschichtungseinheit angeordnet und kann somit herabtropfende, überschüssige Beschichtungsflüssigkeit auffangen. Ferner ist die Auffangschale so ausgebildet, z.B. trichterförmig, dass die aufgefangene Beschichtungsflüssigkeit in die Auffangleitung geleitet werden kann.A still preferred development of the invention is characterized by a collecting unit, which is designed as a collecting tray. The drip tray is particularly suitable for a coating unit which is designed for spraying the metal parts to be coated. The drip tray is preferably located immediately below the coating unit and can thus catch dripping, excess coating liquid. Further, the drip tray is formed, for example, funnel-shaped, that the collected coating liquid can be passed into the collecting line.

Die Erfindung sieht ferner vor, dass eine Zuführung für frische Beschichtungsflüssigkeit in die Auffangeinheit vorgesehen ist. Somit kann die Menge an Beschichtungsflüssigkeit, welche sich im Umlauf befindet, nicht unter eine vorgegebene Menge gelangen.The invention further provides that a supply of fresh coating liquid is provided in the collecting unit. Thus, the amount of coating liquid in circulation can not go below a predetermined amount.

Die Erfindung sieht ferner auch die Verwendung der erfindungsgemäßen Vorrichtung für die Beschichtung von Gewinden oder Gewindeteilen von Schrauben und Schraubenmuttern, mit einer Beschichtungsflüssigkeit, welche klebstoffhaltige Mikrokapseln enthält, vor.The invention further provides for the use of the device according to the invention for the coating of threads or threaded parts of screws and nuts, with a coating liquid containing adhesive-containing microcapsules.

Für die Beschichtung von Gewinden oder Gewindeteilen von Schrauben und Schraubenmuttern mit der erfindungsgemäßen Vorrichtung sieht die Erfindung vor, dass mit einem erfindungsgemäßen Verfahren umfassend folgende Schritte verfahren wird: Befüllen des Vorratsbehälters mit Beschichtungsflüssigkeit, Beschichten der Metallteile, Auffangen überschüssiger Beschichtungsflüssigkeit in der Auffangeinheit, Einleiten überschüssiger Beschichtungsflüssigkeit in den oder einen Auffangbehälter, Schließen des Ventil und des Entlüftungsventils, Beaufschlagen des Auffangbehälters mit Druckluft und damit Zurückfördern der Beschichtungsflüssigkeit über die Steigleitung in den Vorratsbehälter, Beendigung der Druckluftzufuhr und Druckentlastung durch Öffnen des Entlüftungsventils, und Öffnen des Ventils in der Auffangleitung.For the coating of threads or threaded parts of screws and nuts with the device according to the invention, the invention provides that the following steps are carried out with a method according to the invention: filling the storage container with coating liquid, coating the metal parts, collecting excess coating liquid in the collecting unit, introducing excess Coating liquid into the or a collecting container, closing the valve and the venting valve, pressurizing the collecting container with compressed air and thus returning the coating liquid via the riser into the reservoir, termination of compressed air supply and pressure relief by opening the vent valve, and opening the valve in the collecting line.

Weiter bevorzugt werden das Ventil und das Entlüftungsventil erst geschlossen, wenn die Beschichtungsflüssigkeit einen voreingestellten Pegel im Auffangbehälter erreicht hat. Somit wir ermöglicht, dass die im Auffangbehälter enthaltene Luft durch das Entlüftungsventil entweichen kann, während sich der Auffangbehälter füllt. Durch schließen des Ventils beim Erreichen eines voreingestellten Pegels wird außerdem bewirkt, dass keine Beschichtungsflüssigkeit mehr in den Auffangbehälter gelangen kann. Dies ist insbesondere vorteilhaft, wenn der voreingestellte Pegel verhältnismäßig hoch eingestellt wird, d.h. der Auffangbehälter wird im Wesentlichen gefüllt. Überschüssige Beschichtungsflüssigkeit könnte sonst zum Überlaufen des Auffangbehälters bzw. zum Herauslaufen der Beschichtungsflüssigkeit aus dem Entlüftungsventil führen.More preferably, the valve and the vent valve are closed only when the coating liquid has reached a preset level in the collecting container. Thus, we allow the air contained in the catch tank to escape through the vent valve while the catch tank is filling. Closing the valve when a preset level is reached will also cause no coating liquid to enter the sump. This is particularly advantageous if the preset level is set relatively high, ie the collecting container is substantially filled. Otherwise, excess coating liquid could lead to the overflow of the collecting container or to the running out of the coating liquid from the venting valve.

Das erfindungsgemäße Verfahren sieht weiterhin vorzugsweise vor, dass zwei Auffangbehälter alternierend gefahren werden, wobei ein Auffangbehälter überschüssige Beschichtungsflüssigkeit aufnimmt und der andere Auffangbehälter mit Druckluft beaufschlagt wird zwecks Rückförderung der Beschichtungsflüssigkeit. Weiter bevorzugt wird die Rückförderung der Beschichtungsflüssigkeit in einem Auffangbehälter auf die Auffangmenge an überschüssiger Beschichtungsflüssigkeit im anderen Auffangbehälter abgestimmt. Weiter bevorzugt ist die Steuerung des Verfahrens eine Zeitsteuerung. Somit kann das erfindungsgemäße Verfahren mit einer verhältnismäßig einfach ausgebildeten erfindungsgemäßen Vorrichtung ausgeführt werden. Beispielsweise kann auf eine teure und ggf. störungsanfällige elektronische Steuerung und auf Füllstandsensoren verzichtet werden und stattdessen das Verfahren mittels eines verhältnismäßig einfach aufgebauten Zeitschalters gesteuert werden.The inventive method further preferably provides that two collecting containers are driven alternately, wherein a collecting container receives excess coating liquid and the other collecting container is pressurized with compressed air for the purpose of returning the coating liquid. More preferably, the return conveyance of the coating liquid in a collecting container is adjusted to the collecting amount of excess coating liquid in the other collecting container. More preferably, the control of the method is a time control. Thus, the inventive method can be performed with a relatively simple device according to the invention. For example, can be dispensed with an expensive and possibly fault-prone electronic control and level sensors and instead the process can be controlled by means of a relatively simple time switch.

Eine weitere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass frische Beschichtungsflüssigkeit in die Auffangeinheit geführt wird. Weiter bevorzugt entspricht die zugeführte Menge an frischer Beschichtungsflüssigkeit der Verbrauchmenge an Beschichtungsflüssigkeit. Somit kann die Menge an Beschichtungsflüssigkeit, welche sich im Umlauf befindet, nicht unter eine vorgegebene Menge gelangen. Noch vorteilhafter wird die sich im Umlauf befindliche Menge an Beschichtungsflüssigkeit konstant gehalten. Dies ist insbesondere vorteilhaft wenn das erfindungsgemäße Verfahren zeitgesteuert wird, da sonst die Gefahr besteht, dass die sich im Umlauf befindliche Menge an Beschichtungsflüssigkeit zu klein wird und die erfindungsgemäße Vorrichtung folglich - auch wenn nur vorübergehend - trockenläuft, was zu einer mangelhaften oder ggf. fehlenden Beschichtung der Metallteile führen kann.A further advantageous development of the method according to the invention provides that fresh coating liquid is guided into the collecting unit. More preferably, the supplied amount of fresh coating liquid corresponds to the consumption amount of coating liquid. Thus, the amount of coating liquid in circulation can not go below a predetermined amount. Even more advantageously, the amount of coating liquid in circulation is kept constant. This is particularly advantageous when the inventive method is time-controlled, otherwise there is a risk that the circulating amount of coating liquid is too small and consequently the device according to the invention - even if only temporarily - dry, resulting in a deficient or possibly missing Can cause coating of the metal parts.

Weitere Vorteile und Merkmale der Erfindung werden im Folgenden anhand der in den Figuren gezeigten Ausführungsbeispiele für die erfindungsgemäße Vorrichtung und Verwendung sowie für das erfindungsgemäße Verfahren näher erläutert. Dabei zeigen

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung mit einem Auffangbehälter,
Fig. 2
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung in einer Ausführung mit zwei Auffangbehältern.
Further advantages and features of the invention will be explained in more detail below with reference to the exemplary embodiments shown in the figures for the device and use according to the invention and for the method according to the invention. Show
Fig. 1
a schematic representation of a device according to the invention with a collecting container,
Fig. 2
a schematic representation of a device according to the invention in an embodiment with two collecting containers.

In der Fig. 1 ist schematisch eine erfindungsgemäße Vorrichtung dargestellt, welche einen Vorratsbehälter 1, eine Steuereinheit 3, eine mit dem Vorratsbehälter 1 mittels einer Leitung 5 verbundene Beschichtungseinheit 7 aufweist. Unterhalb der Beschichtungseinheit 7 ist eine Auffangeinheit 9 zum Auffangen überschüssiger Beschichtungsflüssigkeit angeordnet, welche mittels einer Auffangleitung 11 mit einem Auffangbehälter 13 verbunden ist. Die Auffangleitung 11 ist mit einem Ventil 15 versehen und kann somit - je nach Stellung der Ventils 15 - unterbrochen werden. Der Auffangbehälter 13 ist ferner mit einer Druckluftquelle 17 mittels einer Druckluftleitung 19 verbunden. Eine Steigleitung 21 führt vom Auffangbehälter 13 zum Vorratsbehälter 1. Zum Messen des Füllstandes des Auffangbehälters 13 ist ein Füllstandsensor 23 versehen, welcher in Verbindung mit der Steuereinheit 3 steht. Zum Entlüften während des Befüllens des Auffangbehälters 13 weist dieser ein Entlüftungsventil 25 auf. Die Steuereinheit 3 ist ebenfalls mit dem Ventil 15, der Druckluftquelle 17 und dem Entlüftungsventil 25 zum Steuern dieser verbunden.In the Fig. 1 schematically a device according to the invention is shown, which has a reservoir 1, a control unit 3, a connected to the reservoir 1 by means of a line 5 coating unit 7. Below the coating unit 7, a collecting unit 9 for collecting excess coating liquid is arranged, which is connected by means of a collecting line 11 with a collecting container 13. The collecting line 11 is provided with a valve 15 and thus - depending on the position of the valve 15 - be interrupted. The collecting container 13 is further connected to a compressed air source 17 by means of a compressed air line 19. A riser 21 leads from the collecting container 13 to the reservoir 1. For measuring the level of the collecting container 13, a level sensor 23 is provided, which is in communication with the control unit 3. For venting during the filling of the collecting container 13, this has a vent valve 25. The control unit 3 is also connected to the valve 15, the compressed air source 17 and the vent valve 25 for controlling these.

Aufgrund der Übersichtlichkeit sind weitere Komponenten und Verbindungen nicht dargestellt, welche jedoch für einen Fachmann ohne Weiteres ersichtlich sind.For clarity, other components and compounds are not shown, which, however, are readily apparent to one skilled in the art.

Beim Beschichten von Teilen in der Beschichtungseinheit 7 gelangt überschüssige Beschichtungsflüssigkeit zunächst in die Auffangeinheit 9, welche beispielsweise als Auffangblech oder -rinne ausgebildet sein kann, und folglich über die Auffangleitung 11 in den Auffangbehälter 13, wo die Beschichtungsflüssigkeit zunächst eingesammelt wird. Beim Erreichen eines festlegbaren Pegels der Beschichtungsflüssigkeit im Auffangbehälter 11 sendet der Füllstandsensor 23 ein entsprechendes Signal an die Steuereinheit 3, welche daraufhin das Ventil 15 und das Entlüftungsventil 25 schließt. Anschließend wird der Auffangbehälter 13 mit Luft aus der Druckluftquelle 17 über die Druckluftleitung 19 beaufschlagt. Die Steigleitung 21 ist derart angeordnet, dass ihr Ende sich unterhalb des Pegels der Beschichtungsflüssigkeit befindet. Aufgrund dessen, da der Auffangbehälter 13 bei geschlossenem Ventil 15 und Entlüftungsventil 25 mit Ausnahme der Steigleitung 21 luftdicht geschlossen ist, wird beim Beaufschlagen des Auffangbehälters 13 mit Druck die Beschichtungsflüssigkeit über die Steigleitung 21 aus dem Auffangbehälter 13 gefördert und gelangt zurück zum Vorratsbehälter 1, wo die Beschichtungsflüssigkeit wieder zum Beschichten zur Verfügung steht. Wenn der Füllstandsensor 23 erkennt, dass der Auffangbehälter 13 wieder leer ist oder einen ebenfalls festlegbaren Leerstand erreicht hat, sendet er ein entsprechendes Signal an die Steuereinheit 3, welche wiederum die Druckluftzufuhr schließt und das Ventil 15 und das Entlüftungsventil 25 wieder öffnet, so dass die von der Auffangeinheit 9 aufgefangene Beschichtungsflüssigkeit wieder in den Auffangbehälter 13 fließen kann.When coating parts in the coating unit 7, excess coating liquid initially passes into the collecting unit 9, which may be formed, for example, as a collecting tray or trough, and consequently via the collecting line 11 into the collecting container 13, where the coating liquid is first collected. Upon reaching a definable level of the coating liquid in the collecting container 11 of the level sensor 23 sends a corresponding signal to the control unit 3, which then closes the valve 15 and the vent valve 25. Subsequently, the collecting container 13 is acted upon with air from the compressed air source 17 via the compressed air line 19. The riser 21 is arranged such that its end is below the level of the coating liquid. Due to the fact that the collecting container 13 is airtight closed with closed valve 15 and vent valve 25 with the exception of the riser 21, the coating liquid is supplied via the riser 21 from the collecting container 13 when pressurizing the collecting container 13 with pressure and returns to the reservoir 1, where the coating liquid is available for coating again. If the level sensor detects 23 that the collecting container 13 is empty again or has reached a definable vacancy, he sends a corresponding signal to the control unit 3, which in turn closes the compressed air supply and the valve 15 and the vent valve 25 opens again, so that the from the collecting unit 9 collected coating liquid can flow back into the collecting container 13.

Fig. 2 zeigt eine schematische Darstellung einer erfindungsgemäßen Vorrichtung in einer Ausführung mit zwei Auffangbehältern 13. Der wesentliche Aufbau der Vorrichtung entspricht dem der Vorrichtung der Fig. 1. Die Auffangleitung ist jedoch mit einem Drei-Wege-Ventil 27 anstatt des Ventils 15 versehen, welches je nach Schaltstellung die Beschichtungsflüssigkeit zu einem der beiden Auffangbehälter 13 A oder B leiten kann. Die Funktionsweise entspricht auch im Wesentlichen der der Vorrichtung aus der Fig. 1. Wenn einer der Auffangbehälter 13 (in diesem Fall Auffangbehälter A) voll ist, sendet der dazugehörige Füllstandsensor 23 ein Signal an die Steuereinheit 3, welche als Antwort darauf das Drei-Wege-Ventil 27 betätigt, das Entlüftungsventil 25 des vollen Auffangbehälters schließt und die Druckluftquelle 17 steuert. Die Beschichtungsflüssigkeit wird somit zurück zum Vorratsbehälter 1 gefördert. Aufgrund der Schaltstellung des Drei-Wege-Ventils 27 fließt jedoch weiterhin Beschichtungsflüssigkeit in den leeren Auffangbehälter 13 B. Einer Rückstaubildung von Beschichtungsflüssigkeit in der Auffangleitung 11 stromaufwärts des Drei-Wege-Ventils 27 wird somit entgegengewirkt. Wenn der Auffangbehälter 13 A leer ist und der Auffangbehälter 13 B voll ist, werden das Drei-Wege-Ventil 27, das Entlüftungsventil 25 sowie die Druckluftquelle 17 entsprechend betätigt, so dass das Auffangbehälter 13 B geleert werden kann. Fig. 2 shows a schematic representation of a device according to the invention in an embodiment with two collecting containers 13. The essential structure of the device corresponds to that of the device of Fig. 1 , However, the collecting line is provided with a three-way valve 27 instead of the valve 15, which can guide the coating liquid to one of the two collecting container 13 A or B depending on the switching position. The operation also essentially corresponds to that of the device from the Fig. 1 , When one of the sumps 13 (in this case sump A) is full, the associated level sensor 23 sends a signal to the control unit 3 which in response actuates the three-way valve 27, closes the full sump breather valve 25 and the source of pressurized air 17 controls. The coating liquid is thus conveyed back to the reservoir 1. Due to the switching position of the three-way valve 27, however, coating liquid continues to flow into the empty receptacle 13 B. A backlog of coating liquid in the collecting line 11 upstream of the three-way valve 27 is thus counteracted. When the receptacle 13 A is empty and the receptacle 13 B is full, the Three-way valve 27, the vent valve 25 and the compressed air source 17 is operated accordingly, so that the collecting container 13 B can be emptied.

Als alternative, nicht dargestellte Steuerung der erfindungsgemäßen Vorrichtung kann vorgesehen werden, dass je nach Durchflussrate der durch die Auffangleitung 11 fließenden Beschichtungsflüssigkeit das Drei-Wege-Ventil 27 und demzufolge die Entlüftungsventile 25 und die Druckluftquelle 17 zeitlich gesteuert werden, so dass die Füllzeit eines Auffangbehälters 13 im Wesentlichen der Zeit entspricht, welche zum Entleeren des anderen vollen Auffangbehälters 13 notwendig ist.As an alternative, not shown, control of the device according to the invention can be provided that, depending on the flow rate of flowing through the collecting line 11 coating liquid, the three-way valve 27 and consequently the vent valves 25 and the compressed air source 17 are controlled in time, so that the filling time of a collecting container 13 essentially corresponds to the time which is necessary for emptying the other full collecting container 13.

Claims (17)

  1. Device for coating metal parts, preferably the thread of screws and screw nuts, with a coating liquid which comprises adhesive-containing microcapsules, comprising:
    - a storage container (1) for the coating liquid,
    - a control unit (3),
    - a coating unit (7) which is connected to the storage container (1) by means of a line (5), and
    - a collecting unit (9) for collecting excess coating liquid;
    characterized in that the collecting unit (9) is connected by means of a collecting line (11), which is provided with a valve (15, 27), to at least one collecting container (13) which is able to be subjected to pressure, in that the collecting container (13) is also provided with a compressed-air source (17), a venting valve (25) and a rising line (21), and the rising line (21) opens out into the storage container (1), wherein the control unit (3) regulates the valve (15, 27), the venting valve (25) and the compressed-air source (17).
  2. Device according to Claim 1, characterized in that the collecting container is equipped with a fill level sensor (23).
  3. Device according to Claim 2, characterized in that the control unit (3) receives signals emitted by the fill level sensor (23) and, in response thereto, controls the valve (15, 27), the venting valve (25) and the compressed-air source (17).
  4. Device according to Claim 1 or 2, characterized in that the control unit (3) regulates the valve (15, 27), venting valve (25) and compressed-air source (17) via a time program.
  5. Device according to one of the preceding claims, characterized in that the device is equipped with two collecting containers (13A, 13B).
  6. Device according to Claim 5, characterized in that the valve is in the form of a three-way valve (27).
  7. Device according to Claim 5 or 6, characterized in that the control unit (3) synchronizes the emptying of a collecting container (13A, 13B) with the filling of the other collecting container (13A, 13B).
  8. Device according to one of the preceding claims, characterized in that the collecting unit (9) is a collecting pan.
  9. Device according to one of the preceding claims, characterized by a feed for fresh coating liquid into the collecting device (13).
  10. Use of the device according to one of the preceding claims for the coating of threads or threaded parts of screws and screw nuts with a coating liquid which comprises adhesive-containing microcapsules.
  11. Method for coating metal parts, preferably the threads of screws and screw nuts, with a coating liquid which comprises adhesive-containing microcapsules using a device according to one of Claims 1 to 9, having the following steps:
    - filling the storage container (1) with coating liquid,
    - coating the metal parts,
    - collecting excess coating liquid in the collecting unit (9),
    - introducing excess coating liquid into the or a collecting container (13),
    - closing the valve (15, 27) and the venting valve (25),
    - subjecting the collecting container (13) to the action of compressed air, and thereby conveying the coating liquid back into the storage container (1) via the rising line (21),
    - ending the supply of compressed air and relieving pressure by opening the venting valve (25), and
    - opening the valve (15, 27) in the collecting line.
  12. Method according to Claim 11, characterized in that the valve (15, 27) and the venting valve (25) are closed only when the coating liquid has reached a preset level in the collecting container (13).
  13. Method according to Claim 11, characterized in that two collecting containers (13A, 13B) are operated in an alternating manner, wherein one collecting container (13A, 13B) receives excess coating liquid and the other collecting container (13A, 13B) is subjected to the action of compressed air for the purpose of return conveyance of the coating liquid.
  14. Method according to Claim 13, characterized in that the return conveyance of the coating liquid in a collecting container (13A, 13B) is matched to the collected quantity of excess coating liquid in the other collecting container (13A, 13B).
  15. Method according to Claim 13 or 14, characterized in that the control of the method is a time control.
  16. Method according to one of the preceding claims, characterized in that fresh coating liquid is conducted into the collecting unit (13).
  17. Method according to Claim 16, characterized in that the fed quantity of fresh coating liquid corresponds to the used quantity of coating liquid.
EP13180627.5A 2012-08-16 2013-08-16 Method and device for coating metal parts Active EP2698445B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13180627T PL2698445T3 (en) 2012-08-16 2013-08-16 Method and device for coating metal parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012016189.1A DE102012016189A1 (en) 2012-08-16 2012-08-16 Apparatus and method for coating metal parts

Publications (3)

Publication Number Publication Date
EP2698445A2 EP2698445A2 (en) 2014-02-19
EP2698445A3 EP2698445A3 (en) 2017-06-14
EP2698445B1 true EP2698445B1 (en) 2019-04-10

Family

ID=48979676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13180627.5A Active EP2698445B1 (en) 2012-08-16 2013-08-16 Method and device for coating metal parts

Country Status (3)

Country Link
EP (1) EP2698445B1 (en)
DE (1) DE102012016189A1 (en)
PL (1) PL2698445T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713909A1 (en) * 2017-06-21 2018-12-28 Soudronic Ag Apparatus for the continuous coating of can bodies and operating methods.
CN206925707U (en) * 2017-09-29 2018-01-26 富准精密电子（鹤壁）有限公司 Medicament automatic adding device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255914A1 (en) * 1972-11-15 1974-05-30 Franz Schlapp Ohg Holzbearbeit PROCEDURE FOR RE-USING THE PAINTED MATERIAL PAST ON THE WORKPIECE IN AUTOMATIC SPRAYING SYSTEMS
US4325985A (en) * 1980-03-31 1982-04-20 The Oakland Corporation Thread lock
US6458417B2 (en) * 2000-07-07 2002-10-01 Akzo Nobel N.V. Method of gluing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2698445A2 (en) 2014-02-19
PL2698445T3 (en) 2019-09-30
EP2698445A3 (en) 2017-06-14
DE102012016189A1 (en) 2014-02-20

Similar Documents

Publication Publication Date Title
DE102004003683B4 (en) Liquid material supply system
DE69104367T2 (en) DISPENSING METHOD AND DEVICE, ESPECIALLY FOR SEALING / ADHESIVES.
DE102007048651A1 (en) Coating system for delivering flexible coating material on substrate, has control device actuated to supply chain of impulses to solenoid valve, needle valve closed for intervals between impulses, and coating material discharged from needle
DE102014224736B4 (en) Apparatus and method for pasting a flowable product
EP2698445B1 (en) Method and device for coating metal parts
DE102004010774B4 (en) material delivery
DE202006017808U1 (en) Apparatus for producing a molten material, especially an adhesive, coating or sealant, comprises a control unit for controlling the heating of a melting device in response to a level sensor and a melt discharge sensor
DE102006002389A1 (en) Control of the flow of paint used in painting booths used particularly for painting automobile bodies
WO2021078876A1 (en) Pump unit, storage device equipped with same, and method for operating the storage device
EP3551342B1 (en) Device for uninterrupted coating of can bodies and operating method
CH660853A5 (en) DEVICE AND METHOD FOR APPLYING A REGULATED AMOUNT OF A LIQUID TO A MOVING TAPE OF FIBER MATERIAL.
EP2801462B1 (en) Method and device for the controlled removal of liquid materials from several containers
WO2009140776A2 (en) Device for removing liquid materials from two storage containers
WO1992002787A1 (en) Process and device for the metered filling of containers with pourable media
DE102004051196A1 (en) Controled filling and emptying of granulate hoppers for feeding extruder involves filling storage hopper with part of hourly material requirement which is completely emptied into weighing hopper before refilling
CH698293B1 (en) Process to regulate the quantity of adhesive discharged to the interface between semiconductor and substrate
DE19649461C2 (en) Method and device for applying a viscous material
DE3718050C1 (en) Process and device for the operation of a double-acting single-piston pump
EP3711864B1 (en) Method for controlling the supply pressure in a circulation system for a coating device and circulation system
DE102007011736A1 (en) Conveying device for conveying powder, particularly powder coating, out of storage container into powder discharge unit, has closed housing, and air permeable fluid base is arranged in housing that is spaced from front side of housing
CH716703B1 (en) Method for operating a fluidic bulk material conveying system and bulk material conveying system.
DE102013008626A1 (en) Method for controlling filling level of coating liquid in collecting tray under chambered squeegee of printing machine, involves automatically controlling filling level by adaptive control based on principle of model reference control
EP0756559A1 (en) Filling stream adjusting process
AT347343B (en) METHOD AND DEVICE FOR FILLING PASTOESEM WELL IN CONTAINERS
DE102023102348A1 (en) Method for operating a dosing device

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: C23C 2/00 20060101AFI20170508BHEP

Ipc: B05C 11/10 20060101ALI20170508BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171213

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181025

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1118731

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013012579

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190410

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190910

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190710

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190710

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190711

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013012579

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

26N No opposition filed

Effective date: 20200113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190816

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190831

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190816

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1118731

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20200817

Year of fee payment: 8

Ref country code: FR

Payment date: 20200821

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20200807

Year of fee payment: 8

Ref country code: CH

Payment date: 20200819

Year of fee payment: 8

Ref country code: IT

Payment date: 20200826

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130816

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210816

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230505

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240821

Year of fee payment: 12