EP4234094A2 - Buse d'application - Google Patents

Buse d'application Download PDF

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Publication number
EP4234094A2
EP4234094A2 EP23172475.8A EP23172475A EP4234094A2 EP 4234094 A2 EP4234094 A2 EP 4234094A2 EP 23172475 A EP23172475 A EP 23172475A EP 4234094 A2 EP4234094 A2 EP 4234094A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
application
section
spatial direction
clamping plates
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.)
Pending
Application number
EP23172475.8A
Other languages
German (de)
English (en)
Other versions
EP4234094A3 (fr
Inventor
Heiko Bitzel
Sergej Eckstein
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.)
Atlas Copco IAS GmbH
Original Assignee
Atlas Copco IAS 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 Atlas Copco IAS GmbH filed Critical Atlas Copco IAS GmbH
Publication of EP4234094A2 publication Critical patent/EP4234094A2/fr
Publication of EP4234094A3 publication Critical patent/EP4234094A3/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/044—Slits, i.e. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus 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
    • B05C5/0254—Coating heads with slot-shaped outlet

Definitions

  • the invention relates to an application nozzle for applying a viscous material to workpieces according to the preamble of claim 1.
  • Such application nozzles also known as flat stream nozzles, are used to generate a wide spray jet, for example to apply a paint to seal seams or an insulating material that has to be applied flat to a workpiece.
  • Such application nozzles are used in particular for coating body components for the automotive industry, but also for coating components of other devices such as built-in devices for kitchens.
  • the application channel widens towards the material outlet in a first spatial direction, in which the width of the application nozzle is measured, which is usually several times (e.g. 5 to 10 times) larger than that in a second Spatial direction measured perpendicular to the first spatial direction thickness of the nozzle body.
  • the nozzle body is mounted on a nozzle holder through which extends a feed channel through which the material is fed into the application channel.
  • the nozzle body is detachably fixed to the nozzle holder, with the nozzle holder having two clamping plates in previously known application nozzles, which abut opposite side surfaces of the nozzle body and clamp it in a gap formed between them.
  • a clamping plate is in one piece with the feed channel having main body of the nozzle holder connected, while the other clamping plate is releasably fixed to this and the nozzle body.
  • the invention is based on the idea that by designing the two clamping plates as separate components and releasably fixing them to the base body and the nozzle body, the edges delimiting the space between the clamping plates intended to accommodate the nozzle body can be designed as sharp edges as possible with a small radius that the nozzle body can be easily fitted between the clamping plates and that there is a high degree of tightness at the transition from the base body to the nozzle body.
  • the tightness is further improved if, according to the invention, the side surfaces of the nozzle body are inclined toward one another at an acute angle, starting from the base body, this angle preferably being a maximum of 30° and in particular a maximum of 10°. Due to the fact that the clamping surfaces of the clamping plates resting on the side surfaces, starting from the base body, are in the same If the angles run towards one another, they press the nozzle body against the base body when it is clamped.
  • the side surfaces each extend up to an end region which protrudes from the intermediate space between the two clamping parts and has the material outlet, at which end region the thickness of the nozzle body increases.
  • a greater thickness of the nozzle body in the area of the material outlet increases its stability, so that it is mechanically more resistant to mechanical loads, such as during cleaning.
  • the end region can be designed as a shoulder projecting from the side surfaces on both sides.
  • the clamping plates each lie flat with a clamping surface on one of the side surfaces of the nozzle body. This achieves a good clamping effect.
  • the clamping plates each have a groove in which a part of the base body is accommodated. This facilitates the positioning of the clamping plates in relation to the base body.
  • the clamping plates and the nozzle body are expediently fixed to one another by means of at least one screw and/or at least one pin. This represents a particularly simple type of attachment.
  • the nozzle body is preferably made of hard metal.
  • a hard metal is to be understood as meaning a metal matrix composite material in which the hard materials present in particle form are held together by a metal matrix.
  • metal carbides or metal nitrides such as tungsten carbide, titanium carbide, titanium nitride, niobium carbide, tantalum carbide or vanadium carbide, are used as hard materials.
  • Carbide is a more expensive material than metal. However, it is much more durable and wear-resistant, especially with regard to abrasive viscous materials.
  • the nozzle body has two nozzle plates lying flat against one another, between which at least one section of the application channel is located.
  • the nozzle plates are advantageous loosely to each other and are pressed against each other by means of the clamping plates. It is possible for one of the nozzle plates to have a depression forming the application channel, while the other nozzle plate is ground flat and the depression only covers the application channel, limiting it on one side. However, it is preferred that both nozzle plates are structurally identical.
  • each of the nozzle plates on the side facing the other nozzle plate, has a delimiting surface that delimits the application channel at least in sections, a shoulder protruding from the delimiting surface with a first contact surface that rests on the other nozzle plate and is parallel to the delimiting surface, and a flat adjoining the delimiting surface has a second contact surface against which the first contact surface of the other nozzle plate rests.
  • This solution according to the invention according to independent claim 10 offers the advantage that the nozzle body is easier to manufacture, particularly when it is made of hard metal. In this case, it is preferred that the nozzle plates bear against one another on contact surfaces to which the second spatial direction extends transversely and preferably perpendicularly.
  • the nozzle plates are advantageously made in one piece and preferably made of hard metal.
  • the application channel has a first section extending from the material inlet and delimited on two sides by the clamping plates and a second section extending to the material outlet and surrounded by the nozzle body.
  • the application channel widens only in its second section in the first spatial direction.
  • the first section also widens in the first spatial direction, starting from the material inlet towards the second section.
  • the nozzle plates can be easily manufactured from hard metal plates. A cutout to form the first section of the application channel is cut out of the hard metal plate by eroding or cutting, and the boundary surface and the second contact surface are then produced by grinding along an edge bounding the shoulder. Only they have to Contact surfaces and the surfaces delimiting the application channel are ground, while grinding the side surfaces of the nozzle body facing away from one another can be omitted.
  • the sealing element is made in one piece from a thermoplastic material, preferably from polyoxymethylene (POM) or polytetrafluoroethylene (PTFE).
  • the sealing element has an outlet gap opening into the second section, the width of which, measured in the first spatial direction, is several times larger than its thickness, measured in the second spatial direction.
  • the thickness of the exit slit is expediently at most twice the thickness of the second section measured in the second spatial direction and is preferably approximately the same in the sense that it differs from the thickness of the second section by at most 10%.
  • the application nozzle 10 shown in the drawing according to the first exemplary embodiment has a nozzle body 12 through which an application channel 14 for viscous material extends from a material inlet 16 to a material outlet 18 .
  • the nozzle body 12 is detachably mounted on a nozzle holder 20 which has a base body 22 through which a feed channel 24 for the viscous material extends to a feed opening 26 .
  • the nozzle body 12 sits on a surface 28 of the base body 22 in which the feed opening 26 is located, the feed opening 26 communicating with the material inlet 16 in such a way that the feed channel 24 opens into the application channel 14 at the feed opening 26 .
  • the nozzle holder 20 also has two clamping plates 30 whose clamping surfaces 32 facing one another bear against side surfaces 34 of the nozzle body 12 facing away from one another and hold the nozzle body 12 in a space 36 between the clamping plates 30 in a clamping manner.
  • each of the clamping plates 30 has a groove 38 in which a portion 40 of the base body 22 is accommodated, which is delimited at the top by the surface 28.
  • Screw openings 42 extend through the nozzle body 12 and the clamping plates 30, through which screws are passed, with which the clamping plates 30 are braced with the nozzle body 12, so that the clamping surfaces 32 are pressed against the side surfaces 34. Additional screws 43 fix the in Fig.
  • the nozzle body 12 has a width b that is significantly greater than its thickness d, which is measured in a second spatial direction 46 perpendicular to the first spatial direction 44 .
  • the application channel 14 has a first section 48 which extends from the material inlet 16 and is open towards the side surfaces 34 and is sealed on both sides by the clamping surfaces 32 .
  • a second section 50 of the application channel 14 adjoins the first section 48 and extends to the material outlet 18 .
  • Both sections 48, 50 of the application channel 14 widen towards the material outlet 18 in the first spatial direction 44, as in particular in FIG Figure 3a shown. The widening takes place with a constant opening angle, starting almost from the material inlet 16 .
  • the applicator nozzle 10 achieves a wide spray pattern with a small thickness when applying a viscous material to a workpiece.
  • the two side surfaces 34 do not run parallel to one another, but rather, starting from the base body 22 , towards one another at an acute angle of approximately 8°.
  • the edges of all components can be precisely ground so that they can be precisely joined to the nozzle body 12.
  • a thickened end region 52 of the nozzle body 12 protrudes upwards from the intermediate space 36 facing away from the base body 22 .
  • the material outlet 18 is located in this end region 52.
  • the nozzle body 12 is composed of two identical nozzle plates 54, each of which is made in one piece from hard metal ( Figures 4a to 4c ).
  • Each of the nozzle plates 54 is machined from a plate-shaped blank made of cemented carbide.
  • an open-edged cutout 56 partially forming the material inlet 16 and the first section 48 of the application channel 14 is eroded or cutting introduced into the blank.
  • the blank is ground down along an edge 58 on one side so that a shoulder 60 remains.
  • the paragraph 60 has a first contact surface 62 .
  • the shoulder 60 is followed by a boundary surface 64 which runs parallel to the first bearing surface 62 and bounds the second section 50 of the application channel 14 on one side.
  • a second contact surface 66 adjoins the boundary surface 64 and is coplanar with it.
  • Two identical nozzle plates 44 are placed loosely against one another to form the nozzle body 12 in that the first contact surface 62 of one nozzle plate 54 rests flat against the second contact surface 66 of the other nozzle plate 54 and vice versa.
  • the second section 50 of the application channel 14 is then located between the two boundary surfaces 64.
  • the nozzle plates 54 are fixed to one another by means of the clamping plates 30 and the screws.
  • the application nozzle 110 according to the second embodiment differs from the application nozzle 10 according to the first exemplary embodiment in only one detail, apart from its size and geometry. Identical features are therefore provided with the same reference symbols in the drawing and are no longer described separately. While in the first exemplary embodiment the application channel 14 and the feed channel 24 are sealed in the area of the feed opening 26 by sealing contact between the nozzle plates 54, the clamping plates 30 and the base body 22, in the second exemplary embodiment the first section 48 of the application channel, which is also shown here also has a constant width in the first spatial direction 44 over its entire length, and an end section of the feed channel 24 that opens into the first section 48 is lined by means of a sealing element 70 made of a thermoplastic material.
  • the sealing element bears against the nozzle body 12, the base body 22 and the clamping plates 30 all around and ensures improved sealing in this area.
  • the sealing element 70 has an outlet gap 72 that opens into the second section 50 of the application channel, the thickness of which, measured in the first spatial direction 44, is approximately as large as the thickness of the application channel 14 defined by the distance between the boundary surfaces 64.
  • the invention relates to an application nozzle 10 for applying a viscous material to workpieces, having a nozzle body 12 through which an application channel 14 extends from a material inlet 16 to a material outlet 18, with the nozzle body 12 having a width in a first spatial direction 44 b, which is greater than a thickness d measured in a second spatial direction 46 running perpendicularly to the first spatial direction 44, and wherein the application channel 14 widens toward the material outlet 18 in the first spatial direction 44, and with a nozzle holder 20, which has a base body 22 and two clamping plates 30, with a feed channel 24 for the viscous material extending through the base body 22, which feed channel 24 opens into the material inlet 16 at a feed opening 26, and wherein the clamping plates 30 resting on opposite side surfaces 34 of the nozzle body 12 detachably detach the nozzle body 12 to the base body 22.
  • both clamping plates 30 are designed as separate components and are detachably fixed to the base body 22 and the nozzle body 12 and/or the nozzle body 12 has two nozzle plates 54 lying flat against one another, between which at least one section 50 of the application channel 14 is located.

Landscapes

  • Coating Apparatus (AREA)
EP23172475.8A 2019-05-24 2020-03-16 Buse d'application Pending EP4234094A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102019113896.5A DE102019113896A1 (de) 2019-05-24 2019-05-24 Auftragsdüse
DE202019104322.9U DE202019104322U1 (de) 2019-05-24 2019-08-06 Auftragsdüse
PCT/EP2020/057098 WO2020239283A1 (fr) 2019-05-24 2020-03-16 Buse d'application
EP20712289.6A EP3921089B1 (fr) 2019-05-24 2020-03-16 Buse d'application

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP20712289.6A Division EP3921089B1 (fr) 2019-05-24 2020-03-16 Buse d'application
EP20712289.6A Division-Into EP3921089B1 (fr) 2019-05-24 2020-03-16 Buse d'application

Publications (2)

Publication Number Publication Date
EP4234094A2 true EP4234094A2 (fr) 2023-08-30
EP4234094A3 EP4234094A3 (fr) 2023-10-11

Family

ID=72612938

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20712289.6A Active EP3921089B1 (fr) 2019-05-24 2020-03-16 Buse d'application
EP23172475.8A Pending EP4234094A3 (fr) 2019-05-24 2020-03-16 Buse d'application

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20712289.6A Active EP3921089B1 (fr) 2019-05-24 2020-03-16 Buse d'application

Country Status (6)

Country Link
US (1) US20220212209A1 (fr)
EP (2) EP3921089B1 (fr)
KR (1) KR20220011642A (fr)
CN (1) CN113710372B (fr)
DE (2) DE102019113896A1 (fr)
WO (1) WO2020239283A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114471974B (zh) * 2020-11-13 2024-04-16 上海发那科机器人有限公司 一种均匀喷流宽幅喷嘴
CN115069485A (zh) * 2021-03-11 2022-09-20 上海发那科机器人有限公司 一种用于涂胶的宽幅平流喷嘴
DE102022114833A1 (de) * 2022-06-13 2023-12-14 Dürr Systems Ag Applikator zur Applikation eines Applikationsmittels
DE102022119669A1 (de) * 2022-08-04 2024-02-15 Atlas Copco Ias Gmbh Düsenvorrichtung zum Auftragen eines viskosen Materials

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4201534A (en) 1978-06-14 1980-05-06 Condec Corporation Foam extrusion die assembly
US20170036243A1 (en) 2015-08-05 2017-02-09 Cannon S.P.A. Method, device and apparatus for dispensing polyurethane mixtures
DE102016014271A1 (de) 2016-11-30 2018-05-30 Dürr Systems Ag Düsenvorrichtung mit konkaver Öffnungskonfiguration

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US1133711A (en) * 1913-03-20 1915-03-30 Benjamin L Cornelius Oil-burner tip.
US4513915A (en) * 1982-12-06 1985-04-30 The Kohler Coating Machinery Corporation Nozzle construction for coating equipment
DE3820790A1 (de) * 1988-06-20 1989-12-21 Walter Schmidt Spritzkopf fuer einen extruder
US5283990A (en) * 1992-11-20 1994-02-08 Church & Dwight Co., Inc. Blast nozzle with inlet flow straightener
EP0701022B1 (fr) * 1994-09-09 2001-04-04 Voith Paper Patent GmbH Appareil d'enduction pour déposer directement ou indirectement un matériau fluide ou pâteux sur une bande en mouvement
DE29613687U1 (de) * 1996-08-07 1996-10-24 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Streichmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
US6375088B1 (en) * 1999-08-11 2002-04-23 International Business Machines Corp. Fluid delivery device with pulsating linear discharge and fluid cleaning method
DE102006012373B3 (de) * 2006-03-17 2007-06-28 Bayerische Motoren Werke Ag Breitschlitzdüse und Verfahren zum Auftragen von hochviskosem Material
JP5095829B2 (ja) * 2008-12-25 2012-12-12 日本特殊塗料株式会社 自動車フロアに塗料を塗布するための高粘度物塗装用塗布ノズル
US8640641B2 (en) * 2010-07-02 2014-02-04 Nordson Corporation Multi-slot applicator with automatic closing function
DE102010038583A1 (de) * 2010-07-28 2012-02-02 Nordson Corporation Düsenanordnung zum Abgeben von flüssigem Material
DE102011011850A1 (de) * 2011-02-21 2012-08-23 Dürr Systems GmbH Düsenkopf zur Applikation eines Dämmstoffmittels
CN106000796B (zh) * 2016-07-01 2018-09-18 合肥国轩高科动力能源有限公司 一种锂离子电池流体涂覆用狭缝式模头
DE102016010223A1 (de) * 2016-08-20 2017-02-16 Daimler Ag Vorrichtung zum Aufbringen eines schalldämmenden Materials auf ein Karosseriebauteil
DE102016014270A1 (de) * 2016-11-30 2018-05-30 Dürr Systems Ag Düsenvorrichtung zur Ausgabe von zwei sich annähernden Strahlen eines Abgabemediums
DE102017101336A1 (de) * 2017-01-25 2018-07-26 Abb Schweiz Ag Sprühapplikator
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201534A (en) 1978-06-14 1980-05-06 Condec Corporation Foam extrusion die assembly
US20170036243A1 (en) 2015-08-05 2017-02-09 Cannon S.P.A. Method, device and apparatus for dispensing polyurethane mixtures
DE102016014271A1 (de) 2016-11-30 2018-05-30 Dürr Systems Ag Düsenvorrichtung mit konkaver Öffnungskonfiguration

Also Published As

Publication number Publication date
EP4234094A3 (fr) 2023-10-11
WO2020239283A1 (fr) 2020-12-03
KR20220011642A (ko) 2022-01-28
EP3921089A1 (fr) 2021-12-15
US20220212209A1 (en) 2022-07-07
DE202019104322U1 (de) 2020-08-26
DE102019113896A1 (de) 2020-11-26
CN113710372B (zh) 2023-12-12
EP3921089B1 (fr) 2023-06-21
CN113710372A (zh) 2021-11-26

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