EP3402607A1 - Plaque perforée de diamètre réduit dans une des zones de bordure, ou dans les deux, d'une rangée de buses - Google Patents

Plaque perforée de diamètre réduit dans une des zones de bordure, ou dans les deux, d'une rangée de buses

Info

Publication number
EP3402607A1
EP3402607A1 EP17704658.8A EP17704658A EP3402607A1 EP 3402607 A1 EP3402607 A1 EP 3402607A1 EP 17704658 A EP17704658 A EP 17704658A EP 3402607 A1 EP3402607 A1 EP 3402607A1
Authority
EP
European Patent Office
Prior art keywords
hole
perforated plate
holes
outermost
edge region
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
EP17704658.8A
Other languages
German (de)
English (en)
Inventor
Hans-Georg Fritz
Benjamin WÖHR
Marcus Kleiner
Moritz BUBEK
Timo Beyl
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
Publication of EP3402607A1 publication Critical patent/EP3402607A1/fr
Pending legal-status Critical Current

Links

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
    • B05B1/14—Nozzles, 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
    • 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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • 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
    • B05C5/0291—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 the material being discharged on the work through discrete orifices as discrete droplets, beads or strips that coalesce on the work or are spread on the work so as to form a continuous coating

Definitions

  • the perforated plate and / or the application device is used in particular for sputtering and / or masking-free application of the fluid.
  • the perforated plate preferably has at least three, at least four or at least five through-holes for passing the fluid through.
  • the through-holes are expediently arranged in a preferably substantially linearly aligned row of nozzles, wherein the row of nozzles has two edge regions and one middle region expediently extending between the two edge regions.
  • the at least one outermost through-hole corresponds in particular to the first through-hole of the nozzle row from the outside in the at least one edge region.
  • the at least two, at least three and / or at least four outermost through-holes correspond in particular to the two, three and / or four first through-holes of the nozzle row in the at least one edge region.
  • a reference passage diameter of at least one through-hole in at least one of the two edge regions may be smaller than the reference passage diameters of the preferably multiple through-holes in the middle region between the two edge regions. It should be mentioned, however, that in an embodiment of the invention the center region can also expediently have only one single through hole.
  • the gradation and thus appropriate diameter reduction of the reference passage diameter can only be done for the outermost and thus from the outside first through hole in only one edge region or both edge regions.
  • the perforated plate only a single nozzle row ⁇ for application of the fluid, such that a 1-dimensional nozzle configuration can be preferably allows.
  • the preferably the center region and at least one edge region comprising nozzle row can, for. B. along an alignment line (expedient straight alignment rule) be linearly aligned.
  • all the through holes of the nozzle row may be linearly aligned along one and the same alignment line.
  • the Ausrichtgerade may in this case therefore a tangent to the reference passage diameter and / or diameter correspond Lochausmündungs ⁇ , preferably with respect to all
  • the nozzle row arrangement can, for. B. either "top aligned”, “oriented down” or “vertically centered” from ⁇ directed.
  • the at least one outermost through-hole in at least one edge region may preferably have the smallest reference passage diameter of the nozzle row.
  • the outermost through-hole it is possible, in particular, for the outermost through-hole to have the absolutely smallest reference passage diameter of the nozzle row, or at least one further through-hole of the nozzle row to have a uniform reference diameter (for example essentially the same size), as long as appropriate none has a smaller reference passage diameter.
  • the at least two outermost through-holes in at least one edge region can have a uniform (for example essentially the same size) or differently sized reference through-diameter.
  • the at least two outermost through-holes may have a different reference through-diameter in at least one edge region, wherein the reference through-diameter of the outermost through-hole may be the smaller reference through-diameter.
  • all through-holes in the center region have a uniform (substantially substantially equal) reference passage diameter and / or are substantially uniformly spaced from one another.
  • the outermost hole spacing or the at least two outermost hole spacings in at least one edge region are smaller or larger than the at least one hole spacing in the middle region. It is also possible that the outermost hole spacing o- the at least two outermost hole spacings in the one edge region of the nozzle row are formed uniformly (expediently essentially the same size) or nonuniformly (expediently large) relative to the outboard hole spacing or the at least one two outermost hole spacing in the other edge area.
  • At least one through-hole in the middle region of the nozzle row and / or at least one through-hole in at least one edge region of the nozzle row has a funnel-shaped hole opening and preferably a cylindrical hole orifice.
  • the funnel-shaped hole muzzle preferably tapers in the flow direction of the fluid.
  • the nozzle row can be designed, in particular, to form a fluid application (eg, fluid path) with a substantially trapezoidal cross-sectional profile, eg. B. substantially rectangular, isosceles or unequal trapezoidal cross-sectional profile and / or substantially Gaußkurvenförmiges cross-sectional profile, so that the nozzle row is particularly suitable for generating overlap-optimized fluid paths.
  • a fluid application eg, fluid path
  • a substantially trapezoidal cross-sectional profile eg. B. substantially rectangular, isosceles or unequal trapezoidal cross-sectional profile and / or substantially Gaußkurvenförmiges cross-sectional profile
  • the application device prefferably be designed in order to ensure a (for example controllable) fluid flow of the at least one edge region that can be controlled independently of the central region.
  • the category functional layer includes in particular layers which have a surface functionalization result, such. As adhesion promoters, primers or layers to reduce the transmission.
  • the pipe stub can z. B. have an outer circumferential surface which tapers towards the free end of the respective pipe stub, in particular conical.
  • FIG. 6B shows a schematic cross-sectional view of a generated by a perforated plate according to the invention
  • FIG. 17 shows two coating agent webs according to the prior art
  • FIG. 1 shows a perforated plate 1 for an application device for preferably zerstäubungsirri and masking free ⁇ s application of a fluid to a component, for example.
  • B a motor vehicle body and / or an attachment for this purpose.
  • the through holes 2.1 in the center region 2 all have the same reference passage diameter and are equally spaced from each other.
  • the two outermost through-holes 3.1 and 3.2 of the first edge region 3a have a different reference passage diameter, wherein the outermost through-passage diameter Gangsloch 3.1 in the first edge region 3a has the smallest reference passage diameter of the nozzle row.
  • the outer circumference of the nozzle row can be limited by a substantially rectangular trapezoid 5.
  • the nozzle row thus produces a fluid path having a substantially right-angled trapezoidal cross-sectional profile.
  • FIG. 2 shows a perforated plate 1 according to another embodiment of the invention.
  • the first edge region 3a and the second edge region 3b have a uniform, in particular axisymmetric nozzle hole configuration.
  • the row of nozzles is designed to be symmetrical overall, in particular axially symmetric and / or mirror-symmetrically relative to a symmetry axis S. extending transversely to the row of nozzles.
  • FIG. 4 shows a perforated plate 1 according to yet another embodiment of the invention.
  • d2 is the same or different than d4
  • FIG. 5 shows a perforated plate 1 according to yet another embodiment of the invention.
  • the perforated plate 1 of FIG. 5 initially essentially corresponds to the perforated plate 1 of FIG. 2.
  • FIG. 5 serves in particular to illustrate possible through-hole spacing formations of the nozzle row.
  • the hole spacings z. B be set as follows:
  • a3 is preferably uniformly al and a2 is equal to and smaller than a3 a4 and a5 are equal in size and a4 are smaller than a3 3.
  • a3 preferably uniformly al smaller a2 and a2 smaller than a3 and / or a5 smaller than a4 and a4 smaller than a3
  • a3 is preferably uniformly greater than a2 and a2 greater than a3 and / or a5 greater than a4 and a4 is greater than a3 5.
  • a3 preferably uniformly al not equal to a2 and a2 not equal to a3 and / or a5 not equal to a4 and a4 not equal to a3
  • the hole spacings in the two Randbe ⁇ ranges 3a and 3b may correspond to each other, for. Al equal to a5 and a2 equal to a4, but can also be designed differently.
  • the cross sections of the coating middle webs Bl and B2 have a substantially isosceles trapezoidal shape 6 and overlap in a shock or overlap region.
  • the distance tolerance between the two fluid paths Bl and B2 can be in the range of +/- 150 ⁇ , +/- 200 ⁇ , +/- 500 ⁇ , +/- 1 mm or even +/- 2mm play.
  • the trapezoidal shape 6 leads to an optimal coating shown on the right in FIG. 6A, in particular in the impact or overlap region.
  • the orifice plate 1 according to Figures 1 to 5 is appropriate for use with an application device for Appli ⁇ adorn a fluid.
  • the application device can be designed to ensure a substantially equal pressure flow of the fluid over the entire nozzle row, so that through the through holes with a smaller diameter as a result of the pressure loss, a smaller fluid volume flow.
  • FIGS. 7 to 12 illustrate through-hole formations according to preferred embodiments of the invention, according to which the respective through-holes 2.1, 3.1, 3.2 and 3.3 of the nozzle row can be designed.
  • the reference passage diameter is denoted by the reference numeral d in FIGS. 7 to 12 and can refer to the respective ones
  • FIG. 8A and 8B show an alternative cross-sectional view through the perforated plate 1 in the region of a through-hole, wherein FIG. 8A shows the through-hole without a coating agent, whereas FIG. 8B shows a coating medium (eg fluid) 50.
  • a coating medium eg fluid
  • Figures 9A and 9B show a preferred embodiment of the invention with a reduced wetting tendency.
  • the perforated plate 1 in each case at the peripheral edge of the individual fürgangslöcher a pipe stub 70, wherein the
  • Figures 14 and 15 show perforated plates 1 with a linearly aligned, the center region 2 and at least one edge region 3a comprehensive nozzle row according to two embodiments ⁇ forms of the invention.
  • the perforated plate 1 is arranged on an outer end side of the application device, so that the at least three through-holes 2.1, 3.1, 3.2, 3.3 form exit holes from the application device.
  • a special feature of the perforated plate 1 shown in FIG. 15 is that the center axes of the through-holes 2.1, 3.1 and 3.2 are aligned substantially on the straight alignment 4.
  • Figure 19 shows a cross-sectional view through a passage hole of a perforated plate 1 according to an embodiment of the invention.
  • the through-hole comprises a funnel-shaped Locheinmündung 30 with an inlet cross section E and a zy linderförmige Lochausmündung 40th
  • the through holes shown in FIGS. 19 to 22 can be used expediently in the center region 2 of the row of nozzles and / or in at least one edge region 3 a, 3 b of the row of nozzles.

Landscapes

  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Abstract

L'invention concerne une plaque perforée (1) destinée à un dispositif d'application destiné à appliquer un fluide à un composant, de préférence une carrosserie de véhicule automobile et/ou une pièce à rapporter à celle-ci. La plaque perforée (1) comprend au moins trois trous de passage (2.1, 3.1, 3.2, 3.3) destinés au passage du fluide. Les trous de passage (2.1, 3.1, 3.2, 3.3) sont associés à une rangée de buses comportant une zone centrale (2) et deux zones de bordure (3a, 3b). L'au moins un trou de passage le plus extérieur (3,1) a, dans au moins une zone de bordure (3a), au moins un diamètre de passage de référence (d, d2, dl) qui est inférieur à au moins un diamètre de passage de référence (d3) d'au moins un trou de passage (2,1) situé dans la zone centrale (2). L'invention comprend également un dispositif d'application et un procédé d'application d'une telle plaque perforée (1).
EP17704658.8A 2016-01-14 2017-01-13 Plaque perforée de diamètre réduit dans une des zones de bordure, ou dans les deux, d'une rangée de buses Pending EP3402607A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016000356.1A DE102016000356A1 (de) 2016-01-14 2016-01-14 Lochplatte mit reduziertem Durchmesser in einem oder beiden Randbereichen einer Düsenreihe
PCT/EP2017/000037 WO2017121643A1 (fr) 2016-01-14 2017-01-13 Plaque perforée de diamètre réduit dans une des zones de bordure, ou dans les deux, d'une rangée de buses

Publications (1)

Publication Number Publication Date
EP3402607A1 true EP3402607A1 (fr) 2018-11-21

Family

ID=58018048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17704658.8A Pending EP3402607A1 (fr) 2016-01-14 2017-01-13 Plaque perforée de diamètre réduit dans une des zones de bordure, ou dans les deux, d'une rangée de buses

Country Status (8)

Country Link
US (1) US11529645B2 (fr)
EP (1) EP3402607A1 (fr)
JP (1) JP6927983B2 (fr)
KR (1) KR102637856B1 (fr)
CN (1) CN108698072A (fr)
DE (1) DE102016000356A1 (fr)
MX (1) MX2018008623A (fr)
WO (1) WO2017121643A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018003096A1 (de) * 2018-04-17 2019-10-17 Burkhard Büstgens Drop-on-Demand - Beschichtung von Oberflächen

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WO2017121643A1 (fr) 2017-07-20
CN108698072A (zh) 2018-10-23
US20190022689A1 (en) 2019-01-24
US11529645B2 (en) 2022-12-20
DE102016000356A1 (de) 2017-07-20
KR102637856B1 (ko) 2024-02-19
MX2018008623A (es) 2019-05-15
JP2019501770A (ja) 2019-01-24
KR20180103079A (ko) 2018-09-18

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