EP1586381B1 - Tête d'application pour produire un film liquide - Google Patents

Tête d'application pour produire un film liquide Download PDF

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Publication number
EP1586381B1
EP1586381B1 EP05008096A EP05008096A EP1586381B1 EP 1586381 B1 EP1586381 B1 EP 1586381B1 EP 05008096 A EP05008096 A EP 05008096A EP 05008096 A EP05008096 A EP 05008096A EP 1586381 B1 EP1586381 B1 EP 1586381B1
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EP
European Patent Office
Prior art keywords
application
application head
outlet openings
head
liquid film
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
EP05008096A
Other languages
German (de)
English (en)
Other versions
EP1586381A3 (fr
EP1586381A2 (fr
Inventor
Bernd Kraft
Tilo Eisenhardt
Lothar Rademacher
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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 Duerr Systems AG filed Critical Duerr Systems AG
Priority to PL05008096T priority Critical patent/PL1586381T3/pl
Publication of EP1586381A2 publication Critical patent/EP1586381A2/fr
Publication of EP1586381A3 publication Critical patent/EP1586381A3/fr
Application granted granted Critical
Publication of EP1586381B1 publication Critical patent/EP1586381B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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

Definitions

  • the invention relates to an application head for dispensing an application medium according to the preamble of claim 1, in particular for producing a liquid film for transport protection of a motor vehicle.
  • liquid films are used inter alia, which are applied by means of an application head automatically on the vehicle body.
  • This technology enables good vehicle protection and flexible coating of individual partial surfaces of various vehicle models, with only changes to the application paths of the respective coating robot being required.
  • both horizontal and vertical surfaces can be coated with such a liquid film.
  • An application head which enables the production of a liquid film for the transport protection of motor vehicle bodies.
  • the known application head on two spray nozzles, via which the coating agent is applied, which forms the liquid film.
  • a disadvantage of the known application head is that the coating agent is applied beyond the edge of the film, which is also referred to as “overspray” and requires time-consuming cleaning of the motor vehicle to be protected.
  • the known application head produces a film with an uneven layer thickness, which leads to an insufficient protection for a thin film and is associated with a too thick film with a high material consumption.
  • the web width is limited when applied with the known application head described above, resulting in long cycle times.
  • a dispensing head which serves to receive solder drops in matrix form or deliver.
  • the dispensing head therefore has outlet openings arranged in the form of a matrix, each of which receives or delivers a drop of solder.
  • this known dispensing head is not suitable for the application of a liquid film, which in particular, it is because the adjacent outlet openings are so far apart that no closed application film is formed.
  • an application head which serves for the application of a liquid to a rotating object, such as a semiconductor wafer, a liquid crystal panel or a photomask.
  • the liquid to be applied in this case is low-viscosity and is pressed through a plate with numerous micropores, in order to avoid that a sharp jet of liquid is produced, which produces surface defects on the surface.
  • the micropores have only a very small opening cross-section, so that this known application head is only suitable for the application of low-viscosity liquids.
  • a much higher viscosity medium is applied, so that this known application head is not suitable for the application of a liquid film, since the micropores would clog by the higher viscosity medium.
  • the invention is therefore based on the object to improve the known application head described above accordingly.
  • the application head according to the invention has a material connection which opens into a chamber, wherein a plurality of outlet openings open out of the chamber in order to be able to apply the application medium in a planar manner.
  • the chamber between the material connection and the outlet openings causes a largely constant pressure of the application medium at the various outlet openings, which contributes to a uniform application of the application medium.
  • chambers can be arranged one behind the other in the flow direction in the application head between the material connection and the outlet opening, wherein the individual chambers are in fluid communication with one another. This advantageously contributes to a uniform application pressure, whereby the coating quality is improved.
  • the individual chambers of the application head according to the invention can each have the same volume, but within the scope of the invention it is also possible for the individual chambers to have different sized volumes.
  • the application head according to the invention preferably has a small chamber volume, so that the beginning and the end of an application process can be set as accurately as possible.
  • the chamber volume of each individual chamber or all chambers together less than 2000 mm 3 , 1000 mm 3 , 500 mm 3 or even less than 400 mm 3 be.
  • the chamber volume depends on the number and the cross-section of the outlet openings, since with a small number of outlet openings and the chamber volume should be correspondingly small in order to avoid dripping at the end of an application process.
  • V CHAMBER A GES * k, where k is preferably between 1 mm 2 and 10 mm 2 , with a value of k between 2.6 mm 2 and 6 mm 2 has proven to be particularly advantageous.
  • the application head according to the invention consists of several modules, wherein the individual modules can preferably be selected according to the desired coating properties and releasably (for example by a screw) are connected to each other.
  • the outlet openings are preferably arranged in a detachably mounted and exchangeable module of the application head. This has the advantage that the number and the geometric arrangement of the outlet openings can be easily changed by a corresponding module is mounted.
  • the individual modules are preferably arranged one behind the other in the flow direction, so that the application medium preferably flows through all the chambers in succession.
  • the individual chambers can each be formed by one of the modules, in this case that the number of chambers can be adjusted by a variation of the number of modules.
  • the size of the chambers can be adapted to the application medium used by a suitable module is selected and mounted.
  • the individual modules are preferably plate-shaped and can be mounted one above the other, wherein the individual modules are preferably fixed by screw connections.
  • the outlet openings are preferably arranged side by side with respect to the web direction of the application head, which leads to an enlargement of the web width and to a corresponding shortening of the cycle times.
  • the web direction of the application head in this case preferably extends at right angles to the longitudinal extension of the application head.
  • the chamber in the application head preferably extends in the lateral direction up to the outermost outlet opening, so that the pressure of the application medium over the entire web width is kept substantially constant.
  • a plurality of rows of outlet openings are provided, wherein the individual rows are arranged one behind the other in the web direction of the application head.
  • Each point of the body surface to be protected is thus successively swept by several rows of outlet openings, which advantageously leads to a uniform coating.
  • the outlet openings in the individual rows are preferably laterally offset relative to one another, whereby the uniformity of the application of the application medium is further improved.
  • the individual rows of outlet openings are preferably aligned substantially obtusely or even at right angles to the web direction of the application head.
  • the invention is not limited to an application head having a plurality of rows of exit openings.
  • the application head according to the invention it is also possible for the application head according to the invention to have only a single row of outlet openings, this row preferably being aligned substantially obtusely or even at right angles to the path direction of the application head.
  • the outlet openings of the application head according to the invention may each have an omnidirectional nozzle which radiates the application medium all around.
  • the round jet nozzle is preferably screwed or pressed into a screw thread in the outlet opening, so that the round jet nozzle is replaceable. This offers the possibility of screwing in the application head over the web width round jet nozzles with a different passage cross-section in order to achieve a homogeneous spray pattern despite a pressure gradient in the chamber.
  • one or more of the outlet openings of the application head may be closed by a blanking plug in order to reduce the web width in the case of an application head having a predetermined width.
  • a blanking plug in order to reduce the web width in the case of an application head having a predetermined width.
  • at least one of the with respect to the web direction of the application head Outside outlet openings closed by a blind plug.
  • the individual outlet openings are preferably designed as bores or nozzles in the application head. It should also be mentioned that, in contrast to slot-shaped nozzles, the outlet openings in the application head according to the invention preferably have a round cross-section, the cross-section preferably being circular.
  • the lateral distance between adjacent outlet openings is preferably sufficiently small in order to achieve a closed application film at a low layer thickness.
  • the lateral distance between the adjacent outlet openings for this purpose may be less than 20%, 10% or even less than 5% of the web width.
  • the invention is not limited to the application head described above as a single component, but also includes an application robot with such an application head.
  • the invention also encompasses the novel use of such an application head for producing a liquid film.
  • the invention advantageously enables a simple development of a series of application heads in order to achieve different application widths.
  • the application head according to the invention can be used with pressure or quantity-controlled application systems.
  • Also advantageous in the application head according to the invention are the low layer thickness fluctuations, the low "overspray” during application, the edge sharpness of the applied webs, the compact design, the cost-effective technique in the region of the application head and the simple cleaning of the application head.
  • FIG. 1 shows an application head 1, which can be used for automated application of liquid film by means of a robot, wherein the application head 1 is guided by the robot.
  • the application head 1 has a modular structure and consists essentially of an upper part 2, two intermediate plates 3, 4 and a lower part 5, wherein the upper part 2, the intermediate plates 3, 4 and the upper part 5 are shown in detail in the following figures.
  • the upper part 2, the intermediate plates 3, 4 and the lower part 5 each have a rectangular base with a length of 82 mm and a width of 25 mm, wherein at the ends in each case a mounting hole is 6-11, by the assembled state in each case a fastening screw 12, 13 is guided, wherein the fastening screws 12, 13 are simplified in the drawing by a dot-dash line.
  • a circumferential collar 14 is formed, which carries on its inside an internal thread and forms a material connection 15, to which a supply line for the application medium can be connected.
  • the application medium thus passes from the material connection 15 via the through-bore 16 into the chamber 17, wherein the chamber 17 has the task to keep the application pressure over the entire width of the application head 1 as constant as possible in order to achieve a homogeneous spray pattern.
  • the upper intermediate plate 3 has in the middle three further through holes with a diameter of three millimeters, wherein the through holes 18-20 connect the chamber 17 in the overlying upper part 2 with a chamber 21 which is formed on the underside of the intermediate plate 3.
  • the lower intermediate plate 4 in turn has two rows of through holes 22, 23 with a diameter of 3 mm, which open out of the chamber 21.
  • the through holes 22, 23 are arranged in two rows, which are aligned at right angles to the web direction of the application head 1.
  • the through holes 22 of the one row are laterally offset from the through holes 23 of the other row, which contributes to a uniform spray application.
  • the through holes 22, 23 in the lower intermediate plate 4 are aligned with corresponding through holes 24 in the lower part, wherein the outlet openings of the through holes 24 each have an internal thread, in each of which a round jet nozzle can be screwed.
  • round jet nozzle is also possible to close the outlet openings of the through holes 24 by a blanking plug in order to reduce the web width of the application head.
  • the two chambers 17, 21 extend in this case in the lateral direction over all outlet openings of the through holes 24, wherein the chambers 17, 21 keep the application pressure over the entire web width substantially constant, which contributes to a homogeneous spray pattern.
  • the size of the chambers 17, 21 can be adapted to the properties of the application medium used by the upper part 2 or the intermediate plate 3 is selected accordingly.

Landscapes

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

Claims (10)

  1. Tête d'application (1) pour déposer un fluide à appliquer, destiné à générer un film liquide, comportant
    a) un raccord de matière (15) pour l'acheminement du fluide à appliquer,
    b) une ouverture de sortie (24) pour déposer le fluide à appliquer,
    et
    c) une chambre (17, 21), dans laquelle débouche le raccord de matière (15) et hors de laquelle mène l'ouverture de sortie (24), caractérisée par
    d) plusieurs ouvertures de sortie (24) qui mènent hors de la chambre (17, 21) pour déposer sur toute une surface le fluide à appliquer,
    e) la distance entre les ouvertures de sortie (24) adjacentes étant suffisamment faible pour obtenir un film de dépôt fermé pour le film liquide.
  2. Tête d'application (1) selon la revendication 1, caractérisée par une structure modulaire formée par plusieurs modules (2-5).
  3. Tête d'application (1) selon la revendication 2, caractérisée en ce que les différents modules (2-5) sont reliés entre eux de manière amovible.
  4. Tête d'application (1) selon la revendication 3, caractérisée en ce que les ouvertures de sortie (24) sont disposées dans un module (5) monté de manière amovible et remplaçable.
  5. Tête d'application (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que plusieurs chambres (17, 21) et/ou plusieurs modules (2-5) sont disposés les uns derrière les autres dans le sens d'écoulement entre le raccord de matière (15) et l'ouverture de sortie (24).
  6. Tête d'application (1) selon la revendication 5, caractérisée en ce que les différents modules (2, 3) forment ou contiennent chacun l'une des chambres.
  7. Tête d'application (1) selon l'une quelconque des revendications 2 à 6, caractérisée en ce que les différents modules (2-5) sont réalisés chacun en forme de plaque.
  8. Tête d'application (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que les ouvertures de sortie (24) ont une section de passage différente.
  9. Dispositif d'application, en particulier robot d'application, comportant une tête d'application (1) selon l'une quelconque des revendications précédentes.
  10. Utilisation d'une tête d'application (1) selon l'une quelconque des revendications 1 à 8 pour générer un film liquide.
EP05008096A 2004-04-16 2005-04-13 Tête d'application pour produire un film liquide Active EP1586381B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05008096T PL1586381T3 (pl) 2004-04-16 2005-04-13 Głowica aplikacyjna do wytwarzania płynnej folii

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018597A DE102004018597B3 (de) 2004-04-16 2004-04-16 Applikationskopf zur Erzeugung einer Flüssigfolie
DE102004018597 2004-04-16

Publications (3)

Publication Number Publication Date
EP1586381A2 EP1586381A2 (fr) 2005-10-19
EP1586381A3 EP1586381A3 (fr) 2008-05-14
EP1586381B1 true EP1586381B1 (fr) 2010-10-13

Family

ID=34935125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008096A Active EP1586381B1 (fr) 2004-04-16 2005-04-13 Tête d'application pour produire un film liquide

Country Status (5)

Country Link
EP (1) EP1586381B1 (fr)
AT (1) ATE484339T1 (fr)
DE (2) DE102004018597B3 (fr)
ES (1) ES2353387T3 (fr)
PL (1) PL1586381T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006060398A1 (de) 2006-12-20 2008-06-26 Mankiewicz Gebr. & Co (Gmbh & Co Kg) Verfahren zur Applikation einer Flüssigfolie nach wässriger Vorbehandlung der zu beschichtenden Oberfläche
PT1872864E (pt) 2006-06-27 2013-10-08 Mankiewicz Gebr & Co Dispositivo e processo para a aplicação de um revestimento líquido sobre uma superfície
DE102006060397A1 (de) * 2006-12-20 2008-06-26 Mankiewicz Gebr. & Co (Gmbh & Co Kg) Verfahren zum Herstellen eines entfernbaren Oberflächenschutzes
NL1032283C2 (nl) * 2006-08-08 2008-02-14 Opstalan B V Orgaan voor het aanbrengen van een viskeus mengsel op een ondergrond, alsmede werkwijze voor het vervaardigen van een isolatie-element.
DE102009004666A1 (de) * 2009-01-12 2010-07-15 Mankiewicz Gebr. & Co. (Gmbh & Co. Kg) Düsenverschluss
DE102011118053A1 (de) * 2011-11-09 2013-05-23 Andritz Küsters Gmbh Vorhang-Auftragswerk
CN106140502B (zh) * 2016-09-21 2018-09-25 江西天祥通用航空股份有限公司 一种多档喷头
IT201800009720A1 (it) * 2018-10-23 2020-04-23 Isopan Spa Dispositivo di erogazione di un liquido

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000405A1 (de) * 1990-01-09 1991-07-11 Hoechst Ag Verfahren und vorrichtung zum gleichmaessigen aufbringen eines fluids auf eine bewegte materialbahn
DE4400769C2 (de) * 1994-01-13 1996-07-18 Lohmann Therapie Syst Lts Verfahren und Vorrichtung zur Herstellung einer flächigen Darreichungsform mit einer Arzneimittelwirkstoffe enthaltenden Zubereitung
SG45121A1 (en) * 1995-10-28 1998-01-16 Inst Of Microelectronics Apparatus for dispensing fluid in an array pattern
WO2000069571A1 (fr) * 1999-05-17 2000-11-23 A.W. Faber-Castell Unternehmensverwaltung Gmbh & Co. Dispositif pour l'application de structures en relief en matiere plastique sur des surfaces
DE19936790A1 (de) * 1999-08-10 2001-02-15 Nordson Corp Westlake Verfahren und Vorrichtung zum Herstellen einer abziehbaren Schutzschicht für Oberflächen, insbesondere für lackierte Oberflächen von Kraftfahrzeugkarosserien
JP2001239187A (ja) * 1999-09-10 2001-09-04 Sigma Meltec Ltd 液体供給ノズルと処理方法
US6260583B1 (en) * 2000-05-24 2001-07-17 Illinois Tool Works Inc. Segmented stackable head design
DE10231276B4 (de) * 2002-07-10 2004-11-11 Mitsubishi Hitec Paper Flensburg Gmbh Beschichtungskopf

Also Published As

Publication number Publication date
EP1586381A3 (fr) 2008-05-14
PL1586381T3 (pl) 2011-04-29
ES2353387T3 (es) 2011-03-01
DE102004018597B3 (de) 2005-12-01
ATE484339T1 (de) 2010-10-15
EP1586381A2 (fr) 2005-10-19
DE502005010368D1 (de) 2010-11-25

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