EP2253384B2 - Dispositif de revêtement pour pièces allongées - Google Patents

Dispositif de revêtement pour pièces allongées Download PDF

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Publication number
EP2253384B2
EP2253384B2 EP10162699.2A EP10162699A EP2253384B2 EP 2253384 B2 EP2253384 B2 EP 2253384B2 EP 10162699 A EP10162699 A EP 10162699A EP 2253384 B2 EP2253384 B2 EP 2253384B2
Authority
EP
European Patent Office
Prior art keywords
workpiece
coating
coating device
nozzles
suction chamber
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.)
Not-in-force
Application number
EP10162699.2A
Other languages
German (de)
English (en)
Other versions
EP2253384B1 (fr
EP2253384A1 (fr
Inventor
Gerhard Stahl
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.)
Cefla Deutschland GmbH
Original Assignee
Cefla Deutschland 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
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Application filed by Cefla Deutschland GmbH filed Critical Cefla Deutschland GmbH
Publication of EP2253384A1 publication Critical patent/EP2253384A1/fr
Publication of EP2253384B1 publication Critical patent/EP2253384B1/fr
Application granted granted Critical
Publication of EP2253384B2 publication Critical patent/EP2253384B2/fr
Not-in-force 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
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0278—Arrangement or mounting of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B05B16/95—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
    • 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
    • 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
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths

Definitions

  • the invention relates to a coating device for elongated workpieces.
  • the workpiece is usually continuously through a suction, in which negative pressure prevails.
  • the inlet and the outlet opening of the suction chamber, through which the workpiece is guided in this case has a die.
  • the matrix is modeled on the outer contour of the workpiece, so that a small gap remains between the die opening and the workpiece.
  • the suction chamber is connected to a vacuum pump to create negative pressure within the suction chamber. In this case, ambient air is sucked through the gap between the die and the workpiece in the suction chamber.
  • coating material such as paint is supplied to the suction chamber, wherein due to the turbulence occurring in the air entering the chamber, a corresponding swirling of the coating medium and thus the generation of a mist is caused.
  • the injection frame has an opening through which the workpiece is passed.
  • the cross-section of the opening is modeled on the profile of the workpiece, so that a gap between the workpiece and spray frame is formed.
  • Within the spray frame several holes are provided, which are aligned either horizontally or vertically. The hole points in the direction of the workpiece and serves as a nozzle.
  • targeted delivery of the coating material takes place. This is particularly useful in complex profiles with grooves, etc., such as window frame profiles, to ensure complete, all-inclusive coating of the workpiece.
  • the provision of the coating frame within the suction chamber has the disadvantage that, moreover, a coating mist is produced in the suction chamber and, as a result, deposition of the coating material takes place on the coating frame itself.
  • the changing of the coating frame is also extremely expensive, since this, the suction chamber must be opened.
  • the provision of a coating frame in the suction chamber is only suitable for a complete coating of the workpiece on all surfaces, since a coating mist is produced in the suction chamber.
  • the object of the invention is to provide a coating device for elongated workpieces, in which the applicator is well accessible for applying a coating medium.
  • the coating device according to the invention for elongated workpieces which are in particular elongated profiles made of wood or plastic, has a conveying device for moving the workpiece in the longitudinal direction.
  • the conveying device is, for example, a conveyor belt, a plurality of driven and non-driven conveyor rollers and the like.
  • the coating device has a suction chamber through which the workpiece is passed.
  • the suction chamber is preferably used for removing excess coating material.
  • the suction chamber is preferably connected to a suction device.
  • the suction device can generate negative pressure in the suction chamber.
  • the suction chamber has an inlet opening and an outlet opening, through which the workpiece is passed.
  • a die is arranged in the inlet and / or the outlet opening.
  • the die has a die opening whose cross-section substantially corresponds to the profile of the workpiece, wherein a gap is formed between the workpiece and the die opening.
  • the coating device has an application device for applying a coating medium to at least one surface of the workpiece.
  • the application device is integrated in the inlet die and / or the outlet die. As a result, it is possible in a simple manner to exchange the application device, for example, for cleaning clogged nozzles, etc.
  • the application device preferably has nozzles pointing into the suction chamber.
  • coating material such as a coating in Direction of the workpiece and also delivered in the direction of the interior of the suction. Not used for coating the workpiece surface coating material is thus removed via the suction chamber.
  • the applicator integrated in the inlet and / or outlet die in a particularly preferred embodiment of the invention preferably has a plurality of nozzles. These can be arranged around the entire circumference of the die opening, so that a coating of all workpiece surfaces is possible. In particular, however, it is also possible to provide one or more nozzles only on individual sides of the die opening or, depending on the coating requirement, to switch off individual nozzles or not to supply them with coating material. In particular, by the ability to switch off or close individual nozzles, it is possible to coat with a die depending on the control of the nozzle different surfaces of the workpiece. For this purpose, it is preferred that each nozzle or a group of nozzles, each with a separate supply line, is connected to the supply of coating material. By switching off or closing a corresponding valve in the supply line, it is thus possible to switch off individual or groups of nozzles.
  • a plurality of slot nozzles are arranged next to one another.
  • at least two slot nozzles next to one another are then preferably connected to separate feed lines.
  • a cover is provided, through which a part of the die opening is closed.
  • the cross-sectional opening of the die can be varied in a simple manner in order to be able to process other, smaller workpieces with the aid of the same die. It is thus not necessary to replace the entire die, but only to use a cover in the die to coat another workpiece can.
  • the nozzles provided in the region of the cover element are then preferably switched off or separated from the die. Also, a redirection or introduction of coating material into a channel of the cover is possible, so that a further nozzle is formed by the cover itself. This makes it possible to coat also an edge of the workpiece, which points in the direction of the cover and not the original die.
  • a steering element is provided at the nozzle outlet.
  • the steering element serves to deflect the coating medium in the direction of the workpiece.
  • the steering element is in this case designed such that a deflection angle is adjustable. This can be done for example by changing the position of the steering element relative to the nozzle exit.
  • the setting of the parking angle can also be realized by exchanging differently designed steering elements. In a preferred embodiment, this is realized in that the steering element is plate-shaped and at least partially covers the slot nozzle. In this case, it is preferable for the edge of the steering element pointing in the direction of the workpiece to be chamfered or to have a chamfer. Depending on the chamfer angle and / or size of the surface of the chamfers, a different setting angle can be defined.
  • the embodiment of the coating device according to the invention shown in the figures has a suction chamber 10, which is connected to a suction device, not shown, such as a vacuum pump.
  • a suction device such as a vacuum pump.
  • the extraction of the air from the suction chamber 10 is effected by suction openings 12 arranged laterally, for example on a side wall of the suction chamber.
  • the suction chamber which is for example rectangular, has an inlet opening 14 and an outlet opening 16. Through the two openings 14, 16, a movement of a workpiece 18 in the direction of the arrow 20 takes place.
  • the transport of the workpiece 18, which is, for example, a board, is carried out by a conveyor 22, which is at least partially driven rollers in the illustrated embodiment.
  • a die 24 is arranged both at the inlet opening 14 and at the outlet opening 16.
  • the die 24 has a die opening 26 (FIG. Fig. 3 ) on.
  • the cross section of the die opening corresponds to the cross section of the workpiece 18 to be coated, wherein the cross section of the die opening is slightly larger, so that between the workpiece 18 and an inner side 28 of the die opening 26, a gap is trained. Through this gap, ambient air is drawn from the suction device connected to the suction chamber 10, as indicated by the arrows 30 (FIG. Fig. 1 ), sucked into the suction chamber. By sucking air into the suction chamber leakage of coating medium such as paint from the suction chamber is avoided.
  • the coating of an upper side 32 of the workpiece 18 takes place on the side of the outlet opening 16 of the suction chamber 10, that is shortly before the exit of the workpiece 18 from the suction chamber 10.
  • 24 nozzles are arranged in the die, in particular as slit 36th , 38, 40 ( Fig. 4 ) are formed.
  • the slot dies provided in the die are provided with a plurality of feed lines 42 (FIG. Fig. 2 ) connected.
  • the supply lines 42 are connected to a reservoir, not shown, for the coating agent such as the paint. Further, the supply lines are connected to a pump for supplying the coating material to the slit nozzles 36, 38, 40.
  • a deflection element 44 As can be seen, the slot nozzles 36, 38, 40 are covered by a deflection element 44.
  • the deflector 44 has the in Fig. 4 illustrated cross section, wherein at one edge of the steering member 44, a chamfer 46 is provided.
  • the chamfer 46 points in the direction of the workpiece, or in the direction of the die opening 26 as well as in the direction of the slot nozzles 36, 38, 40.
  • the fastening of the steering elements 44 is effected by screws 48, wherein a screw head on an outer side 50 (FIGS. Fig. 4 ) of the steering element 44 abuts.
  • the deflection angle of the coating medium on the surface 32 of the workpiece 18 can be adjusted.
  • Fig. 3 For clarity, two steering elements 44, not shown, so that the slot-shaped openings of the slot nozzles 36, 38, 40 are visible.
  • a cover 52 ( Fig. 2 ). By the cover 52, the die opening 26 is partially closed, so that a new smaller die opening 54 is formed. This makes it possible to coat smaller workpieces with further possibly other profile using the same die.
  • the three right feed lines in Fig. 2 closed. With the help of the other supply lines, for example, only the slot nozzles 38 and 40 are then supplied with coating medium. The slot nozzles 36 are no longer supplied with coating medium. The lateral slot nozzle 40 is over the in Fig. 2 upper left feed line 42 supplied with coating medium when an all-round coating of the workpiece takes place.

Landscapes

  • Coating Apparatus (AREA)

Claims (10)

  1. Dispositif de revêtement pour pièces à usiner allongées, avec :
    - un système de convoyage (22) destiné au déplacement de la pièce à usiner (18) dans la direction longitudinale (20),
    - une chambre d'aspiration (10), à travers laquelle est guidée la pièce à usiner (18), et
    - un système d'application (36, 38, 40, 42, 44) destiné à l'application d'un média de revêtement sur tout au moins une surface (32) de la pièce à usiner (18),
    caractérisé en ce que
    est prévue une matrice (24), qui est disposée au niveau d'un orifice d'admission (14) et/ou d'un orifice de sortie (16) de la chambre d'aspiration (10), la matrice (24) présentant une ouverture de matrice, dont la section transversale correspond pour l'essentiel au profil de la pièce à usiner, une fente étant conçue entre la pièce à usiner et l'ouverture de matrice,
    le système d'application (36, 38, 40, 42, 44) étant intégré dans la matrice d'admission (24) et/ou la matrice de sortie (24), et
    l'ouverture de la matrice (26) pouvant être en partie obturée au moyen d'un élément formant couvercle (52).
  2. Dispositif de revêtement selon la revendication 1, caractérisé en ce que le système d'application (36, 38, 40, 42, 44) présente des buses (36, 38, 40) orientées en direction de la chambre d'aspiration (10) et qui sont conçues de préférence comme des buses à fentes.
  3. Dispositif de revêtement selon la revendication 2, caractérisé en ce que tout au moins l'une des plusieurs buses (36, 38, 40) est reliée à au moins une conduite d'amenée (42).
  4. Dispositif de revêtement selon l'une des revendications 1 à 3, caractérisé en ce que le système d'application (36, 38, 40, 42, 44), destiné en particulier au revêtement d'une face large (32) de la pièce à usiner (10), présente au moins deux buses (36, 38), en particulier des buses à fentes, disposées l'une à côté de l'autre.
  5. Dispositif de revêtement selon la revendication 3 ou 4, caractérisé en ce que les conduites d'amenée (42) sont désactivables, tout au moins en partie.
  6. Dispositif de revêtement selon l'une des revendications 1 à 5, caractérisé par un élément de direction (44) disposé à une sortie de buse et destiné à la déviation du média de revêtement dans la direction de la pièce à usiner (18).
  7. Dispositif de revêtement selon la revendication 6, caractérisé en ce que l'élément de direction (44) est conçu de telle sorte qu'un angle de déviation peut être réglé.
  8. Dispositif de revêtement selon la revendication 6 ou 7, caractérisé en ce que l'élément de direction (44) est conçu en forme de plaque, en vue de recouvrir la sortie d'une buse à fentes (36, 38, 40).
  9. Dispositif de revêtement selon l'une des revendications 6 à 8, caractérisé en ce que l'élément de direction (44) présente, au niveau d'un bord orienté en direction de la pièce à usiner (18), un chanfrein (46) destiné à la détermination de l'angle de déviation.
  10. Dispositif de revêtement selon l'une des revendications 1 à 9, caractérisé en ce que la chambre d'aspiration (10) est reliée à un système d'aspiration en vue de la génération d'une dépression.
EP10162699.2A 2009-05-18 2010-05-12 Dispositif de revêtement pour pièces allongées Not-in-force EP2253384B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009021782A DE102009021782A1 (de) 2009-05-18 2009-05-18 Beschichtungsvorrichtung für langgestreckte Werkstücke

Publications (3)

Publication Number Publication Date
EP2253384A1 EP2253384A1 (fr) 2010-11-24
EP2253384B1 EP2253384B1 (fr) 2016-03-23
EP2253384B2 true EP2253384B2 (fr) 2019-08-28

Family

ID=42359440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10162699.2A Not-in-force EP2253384B2 (fr) 2009-05-18 2010-05-12 Dispositif de revêtement pour pièces allongées

Country Status (2)

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EP (1) EP2253384B2 (fr)
DE (1) DE102009021782A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010010497U1 (de) * 2010-07-21 2011-10-24 Delle Vedove Deutschland Gmbh Beschichtungsvorrichtung für langgestreckte Werkstücke
TWM429172U (en) * 2011-11-18 2012-05-11 Hulk Energy Technology Co Ltd Surface treatment apparatus
DE102013201487B4 (de) 2013-01-30 2021-11-11 Cefla Deutschland Gmbh Farbauftragvorrichtung und Verfahren zur Viskositätseinstellung
DE102015205338A1 (de) 2015-03-24 2016-09-29 Cefla Deutschland Gmbh Trocknungsvorrichtung
CN107971171A (zh) * 2017-09-30 2018-05-01 科澳特石油工程技术有限公司 石油管道外涂油设备
CN108355868B (zh) * 2018-01-24 2019-12-20 江苏盐邦泵业制造有限公司 一种水利管道外壁刷漆装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1643330A (en) † 1926-08-27 1927-09-27 Paul J Barord Method of and apparatus for coating
US1726941A (en) † 1927-08-26 1929-09-03 Sterling Varnish Company Apparatus for coating
GB2280864A (en) † 1993-08-13 1995-02-15 Komfort Systems Ltd Vacuum coating elongate aluminium sections with UV curable acrylic lacquer
DE4337438A1 (de) † 1993-11-03 1995-05-04 Schiele Josef Verfahren zum Durchlauf-Vakuum-Rundumbeschichten
US5482745A (en) † 1993-11-29 1996-01-09 Dana Corporation Spray coating process and apparatus
GB2329137A (en) † 1997-09-13 1999-03-17 Universal Finishing Systems Co Vacuum coating apparatus
US20060083862A1 (en) † 2004-10-15 2006-04-20 Santo P. Rapone Method for applying a coating material to the surface of foam cores
DE102004057299A1 (de) † 2004-11-26 2006-06-01 Josef Schiele Ohg Vorrichtung zum Auftragen eines Beschichtungsmediums auf langgestreckte Werkstücke mit einer Führungsvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682823A (en) * 1927-08-26 1928-09-04 Sterling Varnish Company Coating apparatus
NL131679C (fr) * 1961-01-05
US3155545A (en) * 1961-02-27 1964-11-03 Rheem Mfg Co Apparatus for external coating of objects
US3603287A (en) * 1968-10-16 1971-09-07 Daniel Lamar Christy Apparatus for coating elongated articles
DE9214293U1 (de) * 1992-10-22 1993-03-11 Fa. Josef Schiele, 5476 Niederzissen Durchlauf-Vakuumbeschichtungskammer
DE9316759U1 (de) * 1993-11-03 1994-01-13 Fa. Josef Schiele, 56651 Niederzissen Vakuum-Durchlauf-Rundum-Beschichtungskammer
DE29520824U1 (de) * 1995-04-19 1996-04-04 Venjakob Maschinenbau GmbH & Co. KG, 33378 Rheda-Wiedenbrück Farbspritzanlage
US20060083863A1 (en) 2004-10-18 2006-04-20 Christopher Cavallaro Golf ball having sprayed layer of liquid polybutadiene

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1643330A (en) † 1926-08-27 1927-09-27 Paul J Barord Method of and apparatus for coating
US1726941A (en) † 1927-08-26 1929-09-03 Sterling Varnish Company Apparatus for coating
GB2280864A (en) † 1993-08-13 1995-02-15 Komfort Systems Ltd Vacuum coating elongate aluminium sections with UV curable acrylic lacquer
DE4337438A1 (de) † 1993-11-03 1995-05-04 Schiele Josef Verfahren zum Durchlauf-Vakuum-Rundumbeschichten
US5482745A (en) † 1993-11-29 1996-01-09 Dana Corporation Spray coating process and apparatus
GB2329137A (en) † 1997-09-13 1999-03-17 Universal Finishing Systems Co Vacuum coating apparatus
US20060083862A1 (en) † 2004-10-15 2006-04-20 Santo P. Rapone Method for applying a coating material to the surface of foam cores
DE102004057299A1 (de) † 2004-11-26 2006-06-01 Josef Schiele Ohg Vorrichtung zum Auftragen eines Beschichtungsmediums auf langgestreckte Werkstücke mit einer Führungsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
E&R Supply/ North West -'Vacumat Master Spezial' Konstruktionszeichnungen †

Also Published As

Publication number Publication date
EP2253384B1 (fr) 2016-03-23
DE102009021782A1 (de) 2010-11-25
EP2253384A1 (fr) 2010-11-24

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