EP0225624B1 - Tête de pulvérisation pour matière thermoplastique, en particulier pour un adhésif fusible - Google Patents

Tête de pulvérisation pour matière thermoplastique, en particulier pour un adhésif fusible Download PDF

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Publication number
EP0225624B1
EP0225624B1 EP86117045A EP86117045A EP0225624B1 EP 0225624 B1 EP0225624 B1 EP 0225624B1 EP 86117045 A EP86117045 A EP 86117045A EP 86117045 A EP86117045 A EP 86117045A EP 0225624 B1 EP0225624 B1 EP 0225624B1
Authority
EP
European Patent Office
Prior art keywords
spray head
gas
nozzle
mixing chamber
head according
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.)
Expired - Lifetime
Application number
EP86117045A
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German (de)
English (en)
Other versions
EP0225624A3 (en
EP0225624A2 (fr
Inventor
Henning J. Claassen
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.)
Nordson Corp
Original Assignee
Nordson Corp
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 Nordson Corp filed Critical Nordson Corp
Priority to AT86117045T priority Critical patent/ATE50928T1/de
Publication of EP0225624A2 publication Critical patent/EP0225624A2/fr
Publication of EP0225624A3 publication Critical patent/EP0225624A3/de
Application granted granted Critical
Publication of EP0225624B1 publication Critical patent/EP0225624B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air

Definitions

  • the invention relates to a spray head for spraying a flowable thermoplastic material of the type specified in the preamble of claim 1.
  • DE-OS 2 836 545 or DE-OS 3 416 105 discloses devices for spraying application compositions, in particular hot-melt adhesives, but also plastics, in which the flowable application composition is supplied from one source to a spray head, which is supplied via a second Line receives a gas.
  • the spray head simultaneously releases the heated, flowable application composition and the gas, generally air, so that the emerging application composition is atomized by the gas under pressure and applied to the substrate to be coated in the form of a spray curtain or mist.
  • DE-PS 2 924 174 discloses a spray head for spraying a flowable hot-melt adhesive, in which the heated adhesive emerges from a central feed channel.
  • the gas outlet openings are directed against the axis of the outlet opening of the adhesive feed channel and form a gap opening which is directly concentrically surrounding the outlet opening for the adhesive, the jet direction of which forms an acute angle with the axis of the outlet opening.
  • a disadvantage of this configuration is the unfavorable mixing of heated adhesive and the gas, generally compressed air, so that optimal spray patterns cannot be achieved. In particular, once a spray pattern has been specified, it can no longer be varied.
  • a similar spray head emerges from DE-PS 2 405 450, the gas outlet device having an annular, conical channel which surrounds the outlet opening for the heated adhesive and to which the thread to be extruded from the outlet opening for the adhesive is inclined. Since the inlet openings for the annular, conical gas channel are arranged offset on one another on opposite sides of the outlet opening for the adhesive, there is a swirling of the gas in the feed channel, i.e. the exiting gas flow gives the adhesive thread leaving the outlet opening a rotational movement component. In this way, uniform dimensions of the adhesive layer can be achieved in a simple manner, these dimensions being able to be varied as required, namely by appropriately adapting the speed of the emerging gas stream.
  • a spray head for spraying a thermoplastic hot melt adhesive of the type specified in the preamble of claim 1 emerges from US Pat. No. 4,263,338 and has at least one feed channel for the heated hot melt adhesive, an outlet opening at the lower end of the feed channel, and a conically extending feed channel for a gas stream , a mixing chamber into which both the feed channel for the heated adhesive and the gas feed channel open, and a nozzle opening connected to the mixing chamber for the atomized hot melt adhesive.
  • the disadvantage here is that the atomized hot melt adhesive leaving the nozzle opening only emerges in a predetermined direction and, in particular, can no longer be influenced.
  • the invention is therefore based on the object of providing a spray head of the type specified, with which the atomized hot melt adhesive emerging from the nozzle opening of the mixing chamber can also be influenced.
  • the advantages achieved by the invention are based on the fact that the impact area for the atomized hot melt adhesive is easily changed by changing the nozzle shape, the flow angle of the hot melt adhesive, the distance between the spray head and the surface to be coated, the speed of the air and hot melt adhesive flow and finally can be varied by appropriate design of the inlet openings for the hot melt adhesive or the compressed air into the mixing chamber and the outlet opening (s).
  • the hot-melt adhesive does not reach the surface to be coated in the form of a continuous thread, but rather as a uniform, thin film, and shows optimum adhesion there.
  • the outlet opening of the mixing chamber can be designed as a thin outlet slot with a width of about 0.3 mm or as a circular outlet opening with a corresponding diameter.
  • FIG. 1 shows a device, generally indicated by reference number 10, for spraying thermoplastic materials, in particular hot melt adhesives, with a liquefaction device 12, which may have the structure known from DE-OS 2 836 545, for example.
  • the liquefaction device 12 has on its top a filler cap 14 for the plastic to be refilled.
  • the device 10 also contains a hot melt hose 16, which is shown larger in the left part of FIG. 1 than in the right part.
  • This hot melt hose 16 opens into a spray head 18, on the underside of which a nozzle 19 is provided for spraying the hot glue onto a material web 20 which is moved in the direction of the arrow and is to be coated with the hot glue; the sprayed hot glue emerging is indicated in FIG. 1 with dashed lines.
  • the hot melt hose 16 has a connection piece 22 at its inlet end and a connection piece 24 at its outlet end, which are attached to the liquefaction device 12 or the spray head 18 by corresponding counterparts.
  • a compressed air inlet hose 28 which opens into a shut-off element designed as a solenoid valve 30, which is acted upon by the compressed air flowing in the direction of the arrow, and two connected to the liquefaction device 12 via plugs Lines, namely a supply line 32 connected to a hot strip in the interior of the hot melt hose 16 and a control line 34.
  • an outlet hose 36 for warm air penetrates the outer wall of the hot melt hose 16 and opens into the underside of the spray head 18.
  • the hot melt hose 16 has, for example, the construction as is known from DE-OS 3 416 105, i.e. the air line is integrated in the hot melt hose 16, so that the compressed air supplied and the heated hot melt in the hot melt hose. are kept at the specified temperature.
  • hot melt hose 16 and compressed air line can also be designed separately.
  • the compressed air line branches in front of the solenoid valve 30, that is to say a line leads to the solenoid valve 30, while a bypass 38 bypassing the solenoid valve 30 is connected to the compressed air hose 28 at a point which is downstream of the solenoid valve 30 when viewed in the flow direction is.
  • the spray device 10 shown in FIG. 1 has the following mode of operation: in the liquefaction device 12, the hot glue filled through the cover 14 is heated and thereby liquefied; since the shut-off device for the supply of the liquefied hot glue is still closed (this shut-off device is generally located in the condensing device 12 and is not shown in FIG. 1), no hot glue can escape from the spray head 18.
  • a corresponding switching signal is given, whereby the valve 30 in the compressed air line 28 and the shut-off element of the liquefaction device 12 are opened at the same time.
  • the heated and thereby liquefied hot glue is fed into the hot from a high-pressure displacement pump (not shown) in the liquefaction device 12 via the connection 22 Glue hose 16 initiated.
  • the solenoid valve 30 is opened so that the entire amount of compressed air available flows through the hot melt hose 16 and the air hose 36 into the spray head 18 via the solenoid valve 30 and the air hose 28.
  • the hot melt leaves the hot melt hose 16 via the nozzle 24 at approximately the same temperature that it has when it enters the hot melt hose 16; the compressed air also leaves the hot melt hose 16 via the gas line part 36 at approximately the same temperature as the hot melt.
  • the compressed air heated in this way is introduced into the spray head 18 into the hot glue stream in such a way that it is atomized, the temperature-controlled air stream having such a temperature that on the one hand it does not lead to premature solidification of the hot glue applied, but on the other hand it does not lead to overheating of the hot glue and therefore to impair its properties when leaving the spray head 18.
  • Fig. 2 shows a vertical section through the lower part of an embodiment known in principle from US-A 4,263,338 of the spray head 18 with the screwed, approximately cup-shaped nozzle 19.
  • This nozzle carrier 42 is approximately cylindrical in shape and receives in its central feed channel 40 for the heated hot glue a mandrel 44 with a tip which extends to the lower end of the feed channel 40 and thus of the nozzle carrier 42.
  • the central feed channel 40 for the heated hot glue also tapers.
  • an opening 43 is also indicated, which is connected to the line 36 for the compressed air.
  • a flow channel 46 runs downward from this opening 43 in the nozzle carrier 42 and opens into an annular channel 48 which is formed between a stepped area 50 with a reduced diameter of the nozzle carrier 42 on the inside and the inside wall of the nozzle 19 on the outside. From this ring channel 48, the compressed air flows through an inward and downward channel 52 into a mixing chamber 54 which is delimited at the lower end by the inner wall of the nozzle 19 on the one hand and the lower, conical end of the nozzle carrier 42 on the other and in turn tapers downwards (see also Fig 2a).
  • the flow channel 52 is provided with flow guide elements 52a (see FIG. 2a), namely in the embodiment shown with grooves or ribs in the outer wall of the lower, conical, stepped region 50 of the nozzle carrier 52, which can influence the angle at which the Compressed air in the mixing chamber meets the hot glue emerging from the opening.
  • flow guide elements 52a see FIG. 2a
  • knurling can also be provided, for example, not only on the area 50 of the nozzle carrier, but also on the inner surface of the nozzle 19 in order to make the compressed air flow entering the mixing chamber laminar or turbulent as required.
  • the compressed air is thus fed to the mixing chamber 54 in such a way that in the mixing chamber 54 there is an optimal mixing between the heated hot glue from the central channel 40 and the swirling compressed air.
  • the nozzle 19 has a cylindrical projection 56 in plan view (see FIG. 3) with a central, slot-shaped outlet opening 58 for the mixing chamber 54, from which the atomized hot glue emerges downwards.
  • This outlet opening has a width of approximately 0.3 mm.
  • the outlet opening can also be formed by a single central bore with a circular cross section in the projection 56 or else by a plurality of bores with a circular cross section arranged next to one another in a straight line.
  • Such holes should have a diameter of about 0.3 mm.
  • the compressed air on the one hand and the heated hot glue on the other hand are thoroughly mixed in the mixing chamber 54 so that the atomized hot glue leaves the outlet opening 58 as a "hot glue curtain" and can be applied to the substrate 20 as a uniform, thin layer.
  • FIGS. 4 and 5 show a first embodiment of the spray head according to the invention in which a control valve 60 for the compressed air is provided at the opening 43, so that the quantity and / or pressure of the compressed air supplied to the nozzle 19 can be adjusted.
  • the compressed air then passes from the opening 43 in a manner similar to the embodiment according to FIGS. 2 and 3 to a mixing chamber in which the heated hot glue is atomized.
  • the nozzle holder 42 contains a second compressed air connection 62 with a second control valve 64.
  • This connection 62 is connected via a flow channel 66 in the nozzle holder 42 to a flow channel 68 in the nozzle 19.
  • a half-ring line (not shown) in the transition area between nozzle carrier 42 and nozzle 19 connects the two channels 66, 68 to a further flow channel 70 on the opposite side of the nozzle 19, ie, the two flow channels 68, 70 in the nozzle 19 symmetrically Arranged in the middle of the nozzle 19.
  • the two flow channels 68, 70 in the nozzle 19 end in hemispherical knobs 72, 74 which are located on the lower outside of the nozzle 19 and are provided with outlet openings 76, 78.
  • outlet openings 76, 78 are directed obliquely downward onto the atomized hot glue which leaves the nozzle 19 via the outlet opening.
  • the two knobs 72, 74 and the outlet opening 80 of the nozzle 19 are on one straight line.
  • the outlet openings 76, 78 of the knobs 72, 74 are arranged parallel to one another in such a way that the exiting air jets flow past the outlet opening 80 (see FIG. 5), ie the "hot melt curtain" emerging from the outlet opening 80 is drawn from both sides acted upon by the air jets from the knobs 72, 74 and thereby receives a certain shape.
  • This hot glue curtain can be influenced by appropriate spatial configuration of the knobs 72, 74 and thus the air jets generated by them.
  • FIGS. 6 and 7 show an embodiment which differs from the embodiment according to FIGS. 4 and 5 in that a circumferential bead ring 82 is provided on the lower outside of the nozzle 19 and is connected to the two flow channels 68, 70.
  • the bead ring 82 contains a circumferential ring channel 84 which is provided with outlet openings on the inside of the ring bead 82.
  • a total of four outlet openings 86, 88, 90 and 92 are used, which are arranged symmetrically to the outlet opening 80 of the nozzle 19, that is to say in each case at angular intervals of 90 ° .
  • outlet openings 86, 88, 90, 92 direct fine air jets onto the hot glue curtain emerging from the outlet opening 80, as a result of which a specific spray pattern can be achieved. By changing the positions of the outlet openings accordingly, this spray pattern can be varied as required.
  • the outer air jets can also be used in one embodiment of a spray head without a mixing chamber 54 in the nozzle 19, that is to say when the heated hot glue has been atomized in the usual way by the compressed air.
  • thermoplastics and in particular hot melt adhesives have a viscosity in the range between 0 and 1,000,000 and in particular between .0 and 750,000 cp.
  • the compressed air or, more generally, the atomizing gas should be heated, with temperatures in the range between 50 ° C. and 200 ° C. having proven suitable.
  • FIG. 8 shows a spray pattern as can be achieved with several spray heads according to the embodiments according to FIGS. 4 and 5.
  • the axes that connect the outlet openings 76, 78 of the nozzle heads 18 run perpendicular to the direction of the relative movement between the substrate 20 and the spray heads, which results in patterns 100 that run at right angles to this direction.
  • the direction is indicated in Fig. 8 by the arrow.
  • This alignment particularly advantageously utilizes the maximum width of the individual oval patterns 100.
  • FIG. 9 Another, particularly useful spray pattern is shown in Fig. 9; the axes connecting the openings 76, 78 run obliquely with respect to the direction of the relative movement between the substrate 20 and the spray head 18, as can be seen from FIG. 9.
  • the optimal angle can be set as required.
  • the spray pattern in this embodiment is denser than in the spray pattern according to FIG. 8 if all other influencing parameters are kept the same. In some cases, the overlap between the individual spray patterns 100 can be reduced.

Claims (13)

1. Tête de pulvérisation d'un adhésif fusible thermoplastique comprenant
a) au moins un canal d'amenée (14) destiné à l'adhésif fusible chauffé,
b) une ouverture de sortie à l'extrémité inférieure du canal d'amenée (14),
c) un canal d'amenée de forme conique (52) pour un courant gazeux,
d) une chambre mélangeuse (54) dans laquelle débouchent aussi bien le canal d'amenée (14) destiné à l'adhésif fusible chauffé que le canal d'amenée de gaz (52), et
e) une ouverture deB buse (58, 80) raccordée à la chambre mélangeuse (54) et destinée à l'adhésif fusible pulvérisé, caractérisée par les caractéristiques suivantes:
f) des ouvertures de sortie (86, 88, 90, 92) destinées aux faisceaux de gaz dirigés sur l'adhésif fusible sortant et pulvérisé sont répartie symétriquement autour de l'ouverture de buse (58, 80),
g) les faisceaux de gaz sortant par les ouvertures de sortie (86, 88, 90, 92) sont parallèles par paires entre eux et par rapport à l'ouverture de buse (58, 80) quand on regarde en plan ces ouvertures de buse (58, 80), et
h) les courants de gaz allant à la chambre mélangeuse (54) d'une part et aux ouvertures de sortie (86, 88, 90, 92) d'autre part peuvent être réglés indépendamment les uns des autres (60, 64).
2. Tête de pulvérisation selon la revendication 1, caractérisée en ce que
i) un canal d'amenée destiné au gaz allant à la chambre mélangeuse (54) part d'un canal annulaire (48).
3. Tête de pulvérisation selon la revendication 1 ou 2, caractérisée en ce que
j) un corps de buse (19) en forme de cuvette est vissé sur un support de buse cylindrique (42), et en ce que
k) les canaux d'écoulement (48, 52) destinés au gaz sont constitués entre le support de buse (42) et la surface interne du corps de buse (19).
4. Tête de pulvérisation selon la revendication 2 ou 3, caractérisée en ce que
I) le canal d'écoulement (52) destiné au gaz est muni entre le canal annulaire (48) et la chambre mélangeuse (54) d'éléments déflecteurs de courant, notamment de nervures et/ou de gorges.
5. Tête de pulvérisation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que
m) les ouvertures de sortie (86, 88, 90, 92) et l'ouverture de buse (58, 80) de la tête de pulvérisation (19) ont une largeur d'environ 0, 3 mm.
6. Tête de pulvérisation selon l'une quelconque des revendications 1 à 5, caractérisée en ce que
n) l'ouverture de buse (58) est constituée sous forme d'une étroite fente.
7. Tête de pulvérisation selon l'une quelconque des revendications 1 à 5, caractérisée en ce que
o) l'ouverture de buse (80) est constituée par au moins un alésage circulaire.
8. Tête de pulvérisation selon l'une quelconque des revendications 1 à 7, caractérisée en ce que
p) la chambre mélangeuse (54) est de forme cylindrique.
9. Tête de pulvérisation selon l'une quelconque des revendications 1 à 8, caractérisée en ce que
q) la chambre mélangeuse (54) de forme cylindrique a un diamètre d'environ 1, 5 mm.
10. Tête de pulvérisation selon l'une quelconque des revendications 1 à 9, caractérisée en ce que
r) les ouvertures de sortie (86, 88, 90, 92) sont disposées symétriquement.
11. Tête de pulvérisation selon l'une quelconque des revendications 1 à 10, caractérisée en ce que
s) sont prévus deux bourrelets (72, 74) en forme de demi-sphères et disposés à l'opposé l'un de l'autre, comprenant les ouvertures de sortie (76, 78) pour les faisceaux de gaz.
12. Tête de pulvérisation selon l'une quelconque des revendications 1 à 10, caractérisée en ce que
t) il est prévu un bourrelet annulaire (82) comprenant les ouvertures de sortie (86, 88, 90, 92) pour les faisceaux de gaz.
EP86117045A 1985-12-09 1986-12-08 Tête de pulvérisation pour matière thermoplastique, en particulier pour un adhésif fusible Expired - Lifetime EP0225624B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117045T ATE50928T1 (de) 1985-12-09 1986-12-08 Spruehkopf zum verspruehen eines thermoplastischen kunststoffes, insbesondere eines schmelzklebstoffes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3543469 1985-12-09
DE19853543469 DE3543469A1 (de) 1985-12-09 1985-12-09 Spruehkopf zum verspruehen eines thermoplastischen kunststoffes, insbesondere eines schmelzklebstoffes

Publications (3)

Publication Number Publication Date
EP0225624A2 EP0225624A2 (fr) 1987-06-16
EP0225624A3 EP0225624A3 (en) 1987-12-02
EP0225624B1 true EP0225624B1 (fr) 1990-03-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117045A Expired - Lifetime EP0225624B1 (fr) 1985-12-09 1986-12-08 Tête de pulvérisation pour matière thermoplastique, en particulier pour un adhésif fusible

Country Status (4)

Country Link
EP (1) EP0225624B1 (fr)
JP (1) JPS62191062A (fr)
AT (1) ATE50928T1 (fr)
DE (1) DE3543469A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819866A1 (de) * 1988-06-10 1989-12-14 Claassen Henning J Spruehkopf zum verspruehen von fluessigen medien
DE8812808U1 (fr) * 1988-10-12 1990-02-08 Claassen, Henning J., 2120 Lueneburg, De
CA2039086A1 (fr) * 1991-03-26 1992-09-27 Thomas Barty Buse pour pistolet de pulverisation
CH682723A5 (it) * 1992-01-21 1993-11-15 Soremartec Sa Procedimento per applicare rivestimenti alimentari a partire da sostanze alimentari scorrevoli, ad esempio a base di cioccolato, con temperaggio dello stesso, e relativo dispositivo.
US5431343A (en) * 1994-03-15 1995-07-11 Nordson Corporation Fiber jet nozzle for dispensing viscous adhesives
DE19544016A1 (de) * 1995-11-27 1997-05-28 Klaschka Gmbh & Co Zerstäubungskopf für Flüssigkeiten sowie Einrichtung zum Besprühen von Werkstücken mit Flüssigkeiten mit solchen Zerstäubungsköpfen
WO1999054057A1 (fr) 1998-04-17 1999-10-28 Nordson Corporation Procede et appareil permettant l'application d'un motif controle de materiau fibreux sur un substrat mobile
EP1108476B1 (fr) * 1999-06-30 2005-12-14 Anest Iwata Corporation Pistolet a peinture a basse pression
DE10259563A1 (de) 2002-12-19 2004-07-01 Valeo Systèmes d`Essuyage Waschdüse zur Verwendung an Fahrzeugen zum Ausbringen eines flüssigen Reinigungs- oder Waschmediums
US7798434B2 (en) 2006-12-13 2010-09-21 Nordson Corporation Multi-plate nozzle and method for dispensing random pattern of adhesive filaments
US8074902B2 (en) 2008-04-14 2011-12-13 Nordson Corporation Nozzle and method for dispensing random pattern of adhesive filaments
US8960571B2 (en) * 2012-08-17 2015-02-24 Spraying Systems Co. Full cone air-assisted spray nozzle assembly
DE102013208235A1 (de) * 2013-05-06 2014-11-06 Hp Pelzer Holding Gmbh Verfahren zum Sprühbeschichten
WO2021178470A1 (fr) * 2020-03-03 2021-09-10 Nordson Corporation Conception compacte et procédé pour distribuer uniformément, égaliser et atomiser efficacement un fluide
EP3900839A1 (fr) * 2020-04-24 2021-10-27 AquaCar Group Sp. z o.o. Système et procédé de pulvérisation d'adhésif thermofusible sur des surfaces collées et composition d'adhésif thermofusible

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1540805A (en) * 1923-06-02 1925-06-09 Howard W Beach Nozzle for air brushes
US1876644A (en) * 1926-08-02 1932-09-13 Eclipse Air Brush Company Inc Device for spraying paints, lacquers or other liquids
DE1728761U (de) * 1956-01-30 1956-08-23 Tecalemit G M B H Deutsche Vorsatzduesenkopf zur verspruehung plastischer und besonders zaehfluessiger massen.
GB910510A (en) * 1960-09-02 1962-11-14 Devilbiss Co Apparatus for coating articles with chemically reactive liquids
US3130914A (en) * 1962-01-11 1964-04-28 Sargents Sons Corp C G Device for intimately mixing fluents and discharging the mixed fluents as a jet
DE1244625B (de) * 1965-03-25 1967-07-13 Eduard Uez Duesenkoerper zum Spritzen von Farben u. dgl.
FR1524334A (fr) * 1967-03-31 1968-05-10 Prosyn Appareil perfectionné pour la pulvérisation de tous liquides
GB1388468A (en) * 1971-05-24 1975-03-26 Hitachi Ltd Atomizing nozzle
US3911173A (en) * 1973-02-05 1975-10-07 Usm Corp Adhesive process
FR2342103A1 (fr) * 1976-02-25 1977-09-23 Ligne Blanche Buse de pulverisation pour pistolet a melange interne, notamment pour le marquage routier
FR2450124A1 (fr) * 1979-03-01 1980-09-26 Amiaut Jean Pistolet chauffant
DE2924174C2 (de) * 1979-06-15 1984-04-19 Heinrich Bühnen KG Maschinenfabrik, Im- und Export, 2800 Bremen Verfahren und Düse eines Gerätes zum Aufbringen eines Klebers auf ein Substrat
US4263338A (en) * 1979-07-11 1981-04-21 American Can Company Hot spray
US4394967A (en) * 1979-12-18 1983-07-26 Jean Amiaut Gun for applying paints by hot process
JPS5987061A (ja) * 1982-11-09 1984-05-19 Mitsui Eng & Shipbuild Co Ltd 内部混合式霧化器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 193 (C-241)[1630], 5. September 1984; & JP-A-59 87 061 (MITSUI ZOSEN K.K.) 19-05-1984 *

Also Published As

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EP0225624A3 (en) 1987-12-02
DE3543469A1 (de) 1987-06-11
EP0225624A2 (fr) 1987-06-16
ATE50928T1 (de) 1990-03-15
DE3543469C2 (fr) 1988-02-25
JPS62191062A (ja) 1987-08-21

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