DE4013322A1 - Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head - Google Patents

Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head

Info

Publication number
DE4013322A1
DE4013322A1 DE19904013322 DE4013322A DE4013322A1 DE 4013322 A1 DE4013322 A1 DE 4013322A1 DE 19904013322 DE19904013322 DE 19904013322 DE 4013322 A DE4013322 A DE 4013322A DE 4013322 A1 DE4013322 A1 DE 4013322A1
Authority
DE
Germany
Prior art keywords
valves
frame
modular structure
head
controlled feed
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.)
Ceased
Application number
DE19904013322
Other languages
German (de)
Inventor
Heino Kaiser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19904013322 priority Critical patent/DE4013322A1/en
Publication of DE4013322A1 publication Critical patent/DE4013322A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled

Landscapes

  • Coating Apparatus (AREA)

Abstract

A bearer frame (1) accommodates the individual valves (2) arranged in rows. Each valve comprises a body, at the lower end of which is a controlled feed aperture (4) from which flow medium in droplets or strokes is emitted under electronic control on to an object, e.g. a moving paper strip. Supply of medium to the applicator head is via a feed connection (5), and control of its function is via electrical connections (6,6'). The dimensions of the individual valves is approximately 28 mm long x 14 mm wide x 45 mm high, and each of them is fitted with an adjustment screw. Pref. two rows of valves are incorporated, parallel to one another, with the feed apertures (4) spaced apart. USE - For the application of adhesive, hot or cold, paint, lacquer or varnish.

Description

Die Erfindung betrifft eine Vorrichtung zum Auftrag von fließfähigen oder fließfähig gemachten Stoffen, insbesondere Kleber, Heißkleber, Farben, Lacke oder dergleichen.The invention relates to a device for application of flowable or made flowable substances, especially glue, hot glue, paints, varnishes or the like.

Als Auftragsköpfe werden im allgemeinen Dosierventile verwendet und insbesondere zur Portionierung von Leim auf Papier eingesetzt. Diese Dosierventile verfügen im allgemeinen über einen durchgehenden, einstückigen Dosierkolben, der Bestandteil eines Elektromagneten ist und durch den der Dosierkolben hochbewegt werden kann. Die Abwärtsbewegung des Dosierkolbens erfolgt durch ein üblicherweise als Druckfeder ausgebildetes Rückholorgan. In Verbindung hiermit erfolgt durch den in veränderbaren Zeitabständen einschaltbaren Magneten ein pulsierender Antrieb des Dosierkolbens. Gelagert ist der Dosierkolben samt der ihm zugeordneten Druckfeder bei bekannten Dosierventilen vollständig in einer Überströmkammer, die ständig mit dem zu verarbeitenden flüssigen Leim gefüllt ist. Ein derariges Dosierventil ist beispielsweise aus der deutschen Offenlegungsschrift 37 42 414 bekannt. Durch den pulsierend in dem Ventilkörper auf- und abbewegbaren Dosierkolben sind mit regulierbarer Folge Tropfen bestimmter Größe abgebbar, d. h. Punktleimungen möglich, ein Auftrag beliebiger Flächenmuster ist jedoch mit dieser Vorrichtung nicht möglich.Dosing valves are generally used as application heads used and especially for portioning glue used on paper. These metering valves have generally about a continuous, one-piece Dosing piston, part of an electromagnet and through which the dosing piston is moved up can. The dosing piston moves downwards by a usually designed as a compression spring Return device. In connection with this, the Magnets that can be switched on at variable intervals a pulsating drive of the dosing piston. Stored is the dosing piston and the one assigned to it Compression spring in known metering valves completely in an overflow chamber that is constantly connected to the processing liquid glue is filled. A such metering valve is for example from the German Offenlegungsschrift 37 42 414 known. By  the pulsating up and in the valve body Movable dosing pistons are adjustable Drops of a certain size can be dispensed, d. H. Spot sizing it is possible to apply any surface pattern however not possible with this device.

Es ist Aufgabe der Erfindung, eine Vorrichtung vorzustellen, mit der beliebige Flächenmuster bzw. Punktauftragsmuster, insbesondere auch quer zur Papierlaufrichtung erzeugt werden können. Ferner soll die Vorrichtung zuverlässig arbeiten und das Dosiermittel in beliebigen Schaltintervallen punkt- und/oder strichförmig auftragbar sein. Darüber hinaus soll die Vorrichtung besonders wartungsfreundlich sowie leicht montierbar und kostengünstig herstellbar sein.The object of the invention is a device with which any surface pattern or Point order pattern, especially across the line Direction of paper can be generated. Furthermore should the device work reliably and that Dosing agent at any switching interval and / or can be applied in a line. Furthermore the device should be particularly easy to maintain as well as easy to assemble and inexpensive to manufacture be.

Die Lösung der gestellten Aufgabe gelingt erfindungsgemäß dadurch, daß mehrere Dosierventile in modularem Aufbau in einem rahmenartigen Auftragskopf angeordnet sind. Durch den kompakten modularen Aufbau der einzelnen Ventile kann eine beliebige Anzahl in einreihiger oder auch mehrreihiger, gegebenenfalls auch versetzter Anordnung als Mehrfach-Auftragskopf mit beispielsweise bis zu 100 Ventilen eingesetzt werden. Durch den modularen Aufbau ergibt sich eine übersichtliche Anordnung der Ventile. Ein leichtes Auswechseln der Düsen bzw. Einzelventile vermeidet längere Stillstandszeiten. Der erfindungsgemäß ausgebildete Mehrfach-Auftragskopf ermöglicht dem Anwender, frei programmierbare Punkt- und/oder Strichauftragsmuster auch quer zur Papierlaufrichtung aufzutragen.The task is solved according to the invention in that several metering valves in modular structure in a frame-like application head are arranged. Due to the compact modular structure of the individual valves can be any number in single-row or multi-row, if necessary also staggered arrangement as a multiple application head with up to 100 valves, for example will. The modular structure results in one clear arrangement of the valves. A simple Replacing the nozzles or individual valves avoided longer downtimes. The invention trained multiple application head enables this User, freely programmable point and / or Stroke pattern also across the paper direction  to apply.

Nach einer besonders vorteilhaften Ausgestaltung der Erfindung sind vorzugsweise zwei Reihen von Dosierventilen parallel zueinander vorgesehen und die Dosierköpfe lückenversetzt ausgerichtet. Durch diese Maßnahme werden sehr enge Punkt- und/oder Strichabstände ermöglicht.According to a particularly advantageous embodiment of the Invention are preferably two rows of Dosing valves are provided in parallel and the Dosing heads aligned with gaps. Through this Measure will be very narrow point and / or Stroke spacing allows.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung des in den Zeichnungen schematisch dargestellten Ausführungsbeispieles.More details, features and advantages of the Invention result from the following Explanation of the schematic in the drawings illustrated embodiment.

Es zeigtIt shows

Fig. 1 einen erfindungsgemäßen Mehrfach- Auftragskopf (einreihig) als Ansicht von unten, Fig. 1 is a multi-application head according to the invention (Row) as a view from below,

Fig. 2 wie Fig. 1, jedoch in teilgeschnittener Seitenansicht. Fig. 2 as Fig. 1, but in a partially sectioned side view.

Wie aus den Fig. 1 und 2 ersichtlich, besteht der Mehrfach-Auftragskopf zur Portionierung von fließfähigen oder fließfähig gemachten Stoffen, insbesondere Kleber, Heißkleber, Farben, Lacke oder dergleichen, im wesentlichen aus einem Tragrahmen (1) zur Aufnahme der in Reihe angeordneten Einzelventile (2). Die Einzelventile (2) bestehen zweckmäßigerweise jeweils aus einem hier nicht dargestellten Ventilkörper, der in einem Trägerkörper (3) angeordnet bzw. von diesem gehalten wird. Die Einzelventile (2) weisen an ihrem unteren Ende je einen Dosierkopf mit Dosieröffnung (4) auf, aus denen nach einem elektronisch geregelten, frei dosierbaren bzw. vorbestimmten Raster das Dosiermedium tropfen- oder strichförmig portioniert auf einen entsprechenden Gegenstand, beipielsweise eine bewegte Papierbahn aufgebracht wird. Die Versorgung des Mehrfach- Auftragskopfes mit dem zu portionierenden Stoff geschieht über den Zufuhranschluß (5). Die Steuerung geschieht über die elektrischen Anschlüsse (6, 6′). Die Abmessungen eines einzelnen Dosierventils betragen etwa 28×14×45 mm (Länge×Breite×Höhe). Die robuste Ausführung der Einzelventile mit integrierter Regulierschraube garantiert einen exakten Auftrag und eine lange Lebensdauer.As can be seen from FIGS. 1 and 2, the multiple application head for portioning flowable or made flowable substances, in particular glue, hot glue, paints, varnishes or the like, essentially consists of a support frame ( 1 ) for accommodating the individual valves arranged in series ( 2 ). The individual valves ( 2 ) expediently each consist of a valve body, not shown here, which is arranged in a carrier body ( 3 ) or held by the latter. The individual valves ( 2 ) each have a metering head with a metering opening ( 4 ) at their lower end, from which, according to an electronically controlled, freely meterable or predetermined grid, the metering medium can be portioned in drops or lines into a corresponding object, for example a moving paper web becomes. The supply of the multiple application head with the substance to be portioned takes place via the feed connection ( 5 ). The control is done via the electrical connections ( 6 , 6 '). The dimensions of a single metering valve are approximately 28 × 14 × 45 mm (length × width × height). The robust design of the individual valves with integrated regulating screw guarantees an exact order and a long service life.

Die erfindungsgemäßen Maßnahmen sind nicht auf das in den Zeichnungsfiguren dargestellte bzw. die beschriebenen Ausführungsbeispiele beschränkt. So können beispielsweise, ohne den Rahmen der Erfindung zu verlassen, die Mehrfach-Auftragsköpfe Teil einer Auftragsleiste oder eines Auftragsrahmens sein, wobei mehrere Auftragsköpfe in beliebiger Anordnung zueinander vorgesehen sein können. Es ist ferner möglich, daß mehrere gleiche Dosierventile auch in anderer Weise als in Reihe zueinander in Wirkverbindung stehen bzw. angeordnet sind, um bestimmte beliebige Punkt- und/oder Strichauftragsmuster zu erzeugen. Die jeweilige konstruktive Ausgestaltung ist in Anpassung an eine spezielle Verwendung des Dosierventils dem Fachmann anheimgestellt.The measures according to the invention are not based on the the drawing figures shown or described embodiments limited. So can, for example, without the scope of the invention to leave the multiple guns part of a Job bar or a job frame, where several application heads in any arrangement can be provided to each other. It is further possible that several identical metering valves also in other than in series with each other in Operational connection are or are arranged to certain arbitrary point and / or To produce line application patterns. The respective constructive design is in line with one special use of the metering valve to the specialist  left home.

Claims (3)

1. Vorrichtung zum Auftrag von fließfähigen oder fließfähig gemachten Stoffen, insbesondere Kleber, Heißkleber, Farben, Lacke oder dergleichen, dadurch gekennzeichnet, daß mehrere Dosierventile (2) in modularem Aufbau in einem rahmenartigen Auftragskopf (1) angeordnet sind.1. Device for the application of flowable or made flowable substances, in particular glue, hot glue, paints, varnishes or the like, characterized in that several metering valves ( 2 ) are arranged in a modular structure in a frame-like application head ( 1 ). 2. Mehrfach-Auftragskopf nach Anspruch 1, dadurch gekennzeichnet, daß die Dosierventile (2) in Reihe angeordnet sind.2. Multiple application head according to claim 1, characterized in that the metering valves ( 2 ) are arranged in series. 3. Mehrfach-Auftragskopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mehrere Reihen mit Dosierventilen (2), vorzugsweise zwei Reihen parallel zueinander vorgesehen und die Dosierköpfe (4) lückenversetzt ausgerichtet sind.3. Multiple application head according to claim 1 or 2, characterized in that a plurality of rows with metering valves ( 2 ), preferably two rows are provided parallel to one another and the metering heads ( 4 ) are aligned with a gap.
DE19904013322 1990-04-26 1990-04-26 Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head Ceased DE4013322A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904013322 DE4013322A1 (en) 1990-04-26 1990-04-26 Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904013322 DE4013322A1 (en) 1990-04-26 1990-04-26 Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head

Publications (1)

Publication Number Publication Date
DE4013322A1 true DE4013322A1 (en) 1991-10-31

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DE19904013322 Ceased DE4013322A1 (en) 1990-04-26 1990-04-26 Multiple applicator head for flowing medium - has several controlled feed valves fitted in modular structure in frame-type head

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9209179U1 (en) * 1992-07-09 1993-11-11 Fricke Abfülltechnik GmbH + Co, 32547 Bad Oeynhausen Dosing head on / for a dosing device for multicomponents on liquids
EP0570733A1 (en) * 1992-05-19 1993-11-24 J.M. Voith GmbH Coating apparatus for applying a coating colour onto a paper web
EP0707896A1 (en) 1994-10-22 1996-04-24 ITW Dynatec GmbH Klebetechnik Device for applying glue and its nozzle plate
DE4437764A1 (en) * 1994-10-22 1996-04-25 Itw Dynatec Gmbh Klebetechnik Glue strip application equipment
DE29506334U1 (en) * 1995-04-12 1996-08-14 ITW Dynatec GmbH Klebetechnik, 40699 Erkrath Device for applying glue or the like. and suitable nozzle plate
DE29708102U1 (en) * 1997-05-05 1997-07-10 Lutzke, Werner, 86316 Friedberg Device for applying adhesive
US5769947A (en) * 1994-10-22 1998-06-23 Itw Dynatech Gmbh Klebetechnik Applicator for adhesive and corresponding nozzle plate
DE19722159A1 (en) * 1997-05-27 1998-12-03 Voith Sulzer Papiermasch Gmbh Method and device for the direct or indirect application of a liquid or pasty application medium to a running surface
DE19752517A1 (en) * 1997-11-27 1999-07-01 Bosch Gmbh Robert Liquid applicator for surfaces of semiconductor, glass, ceramic disc, etc.
DE29907968U1 (en) 1999-05-05 1999-07-29 Nordson Corporation, Westlake, Ohio Device for dispensing fluid, in particular adhesive
DE29809480U1 (en) * 1998-05-28 1999-10-21 Nordson Corp., Westlake, Ohio Device for applying fluids
DE102005026160A1 (en) * 2005-06-06 2006-12-07 Willi Borst Binding agent e.g. plastisol, applying device for product path e.g. knitted fabric, has splitter unit arranged between product path and coating nozzle and connected with bonding agent discharge cross-section in coating nozzle sided manner
DE10023673B4 (en) * 2000-05-16 2007-11-22 Nordson Corp., Westlake Distribution device for distributing fluids and device for dispensing and applying fluid, in particular adhesive
DE102008018982A1 (en) * 2008-04-14 2009-11-05 Merz, Hartmut, Prof. Dr. med. Automatic device for carrying out detection reactions and method for dispensing reagents on microscope slides
DE102014001897A1 (en) 2014-02-14 2015-08-20 Focke & Co. (Gmbh & Co. Kg) Valve arrangement for applying flowable media to surfaces
CN105436025A (en) * 2014-09-10 2016-03-30 万润科技股份有限公司 Liquid material extrusion method and device
DE102016006786A1 (en) * 2016-06-06 2017-12-07 Focke & Co. (Gmbh & Co. Kg) Modular (glue) valve
DE102018108915A1 (en) * 2018-04-16 2019-10-17 Atlas Copco Ias Gmbh metering valve
EP3718643B1 (en) 2016-12-14 2021-09-01 Dürr Systems AG Coating device for coating components
CN114273153A (en) * 2021-11-24 2022-04-05 铜陵市同威科技有限公司 Painting mold
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11813630B2 (en) 2016-12-14 2023-11-14 Dürr Systems Ag Coating method and corresponding coating device
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506393A1 (en) * 1985-02-23 1986-08-28 Windmöller & Hölscher, 4540 Lengerich Glue application device
DE3742414A1 (en) * 1987-11-19 1989-06-01 Schuetze Alfred App Metering valve
DE3804856A1 (en) * 1988-02-17 1989-08-31 Macon Gmbh Klebstoff Auftragsg DEVICE FOR APPLYING GLUE OR THE LIKE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506393A1 (en) * 1985-02-23 1986-08-28 Windmöller & Hölscher, 4540 Lengerich Glue application device
DE3742414A1 (en) * 1987-11-19 1989-06-01 Schuetze Alfred App Metering valve
DE3804856A1 (en) * 1988-02-17 1989-08-31 Macon Gmbh Klebstoff Auftragsg DEVICE FOR APPLYING GLUE OR THE LIKE

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570733A1 (en) * 1992-05-19 1993-11-24 J.M. Voith GmbH Coating apparatus for applying a coating colour onto a paper web
US5529629A (en) * 1992-05-19 1996-06-25 J. M. Voith Gmbh Applicator system for application of color coating on a paper web
DE9209179U1 (en) * 1992-07-09 1993-11-11 Fricke Abfülltechnik GmbH + Co, 32547 Bad Oeynhausen Dosing head on / for a dosing device for multicomponents on liquids
EP0707896A1 (en) 1994-10-22 1996-04-24 ITW Dynatec GmbH Klebetechnik Device for applying glue and its nozzle plate
DE4437764A1 (en) * 1994-10-22 1996-04-25 Itw Dynatec Gmbh Klebetechnik Glue strip application equipment
US5769947A (en) * 1994-10-22 1998-06-23 Itw Dynatech Gmbh Klebetechnik Applicator for adhesive and corresponding nozzle plate
DE29506334U1 (en) * 1995-04-12 1996-08-14 ITW Dynatec GmbH Klebetechnik, 40699 Erkrath Device for applying glue or the like. and suitable nozzle plate
DE29708102U1 (en) * 1997-05-05 1997-07-10 Lutzke, Werner, 86316 Friedberg Device for applying adhesive
DE19722159A1 (en) * 1997-05-27 1998-12-03 Voith Sulzer Papiermasch Gmbh Method and device for the direct or indirect application of a liquid or pasty application medium to a running surface
US6063450A (en) * 1997-05-27 2000-05-16 Voith Sulzer Papiermaschinen Gmbh Method and apparatus for directly or indirectly applying a liquid pasty application medium to one or both sides of a continuous surface
US6410100B1 (en) 1997-05-27 2002-06-25 Voith Sulzer Papiermaschinen Gmbh Method of applying a coating medium on a traveling fiber material web
US6494954B1 (en) 1997-05-27 2002-12-17 Voith Sulzer Papiermaschinen Gmbh Method and apparatus for directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface
DE19752517A1 (en) * 1997-11-27 1999-07-01 Bosch Gmbh Robert Liquid applicator for surfaces of semiconductor, glass, ceramic disc, etc.
DE29809480U1 (en) * 1998-05-28 1999-10-21 Nordson Corp., Westlake, Ohio Device for applying fluids
DE29907968U1 (en) 1999-05-05 1999-07-29 Nordson Corporation, Westlake, Ohio Device for dispensing fluid, in particular adhesive
US6419750B1 (en) 1999-05-05 2002-07-16 Nordson Corporation Apparatus and methods for dispensing fluid
DE10023673B4 (en) * 2000-05-16 2007-11-22 Nordson Corp., Westlake Distribution device for distributing fluids and device for dispensing and applying fluid, in particular adhesive
DE102005026160A1 (en) * 2005-06-06 2006-12-07 Willi Borst Binding agent e.g. plastisol, applying device for product path e.g. knitted fabric, has splitter unit arranged between product path and coating nozzle and connected with bonding agent discharge cross-section in coating nozzle sided manner
DE102008018982A1 (en) * 2008-04-14 2009-11-05 Merz, Hartmut, Prof. Dr. med. Automatic device for carrying out detection reactions and method for dispensing reagents on microscope slides
DE102014001897A1 (en) 2014-02-14 2015-08-20 Focke & Co. (Gmbh & Co. Kg) Valve arrangement for applying flowable media to surfaces
WO2015120956A2 (en) 2014-02-14 2015-08-20 Focke & Co. (Gmbh & Co. Kg) Valve arrangement for applying fluid media to surfaces
US10035167B2 (en) 2014-02-14 2018-07-31 Focke & Co. (Gmbh & Co. Kg) Valve arrangement for applying fluid media to surfaces
CN105436025A (en) * 2014-09-10 2016-03-30 万润科技股份有限公司 Liquid material extrusion method and device
US10670164B2 (en) 2016-06-06 2020-06-02 Focke & Co. (Gmbh & Co. Kg) Modular (glue-) valve
DE102016006786A1 (en) * 2016-06-06 2017-12-07 Focke & Co. (Gmbh & Co. Kg) Modular (glue) valve
EP3718643B1 (en) 2016-12-14 2021-09-01 Dürr Systems AG Coating device for coating components
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11813630B2 (en) 2016-12-14 2023-11-14 Dürr Systems Ag Coating method and corresponding coating device
US11878317B2 (en) 2016-12-14 2024-01-23 Dürr Systems Ag Coating device with printhead storage
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method
DE102018108915A1 (en) * 2018-04-16 2019-10-17 Atlas Copco Ias Gmbh metering valve
CN114273153A (en) * 2021-11-24 2022-04-05 铜陵市同威科技有限公司 Painting mold
CN114273153B (en) * 2021-11-24 2022-12-20 铜陵市同威科技有限公司 Painting mold

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