EP0835692A2 - Dispositif d'application d'un produit de revêtement sur un objet - Google Patents

Dispositif d'application d'un produit de revêtement sur un objet Download PDF

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Publication number
EP0835692A2
EP0835692A2 EP97114150A EP97114150A EP0835692A2 EP 0835692 A2 EP0835692 A2 EP 0835692A2 EP 97114150 A EP97114150 A EP 97114150A EP 97114150 A EP97114150 A EP 97114150A EP 0835692 A2 EP0835692 A2 EP 0835692A2
Authority
EP
European Patent Office
Prior art keywords
particle
jet nozzle
baffle
compressed air
particles
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.)
Granted
Application number
EP97114150A
Other languages
German (de)
English (en)
Other versions
EP0835692B1 (fr
EP0835692A3 (fr
Inventor
Hugo Brennenstuhl
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.)
Hugo Brennenstuhl GmbH and Co KG
Original Assignee
Hugo Brennenstuhl GmbH and Co KG
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 Hugo Brennenstuhl GmbH and Co KG filed Critical Hugo Brennenstuhl GmbH and Co KG
Publication of EP0835692A2 publication Critical patent/EP0835692A2/fr
Publication of EP0835692A3 publication Critical patent/EP0835692A3/fr
Application granted granted Critical
Publication of EP0835692B1 publication Critical patent/EP0835692B1/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
    • B05B7/14—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 designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/18—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area using fluids, e.g. gas streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/087—Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes
    • 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

Definitions

  • the invention relates to a device for applying Coating material in the form of powdery, granulated, flaky or the like shaped particles on one Object, with a baffle and a particle jet nozzle arrangement, from which a particle stream with a Jet pressure emerges and blown against the impact surface at which the particles are at a distance from the baffle opposite object to be redirected, whereby an electrode device for charging the particles with one different from the potential of the object Potential is provided.
  • the object of the invention is therefore a device of the type mentioned at the beginning, which enables to apply particles to large objects over the entire surface, without having to move the device.
  • This object is achieved according to a first embodiment solved in that two particle jet nozzle arrangements to obliquely inflate two particle streams against the Baffle available from opposite sides are such that the two on the baffle object diverted particle streams a common, form a particle stream directed against the object, being used to change the direction of the common particle flow the jet pressure at at least one of the particle jet nozzle arrangements is changeable.
  • two particle streams generated obliquely towards and towards the baffle surface then, after being redirected towards the object to run towards each other and meet, so that they juxtaposed or mixed together the common Form particle stream.
  • the direction of this common Particle flow depends on the jet pressure on the two Particle nozzle arrangements. If the pressure conditions change, this also changes the direction of the common Particle flow. You zoom in or out one of the particle jet nozzle arrangements the blowing pressure, the common particle stream shifts from this Particle jet nozzle arrangement away or towards this, see above that the common particle stream is correspondingly large Can paint over surfaces.
  • a compressed air flow from the Side against the particle stream can be directed.
  • the at least one compressed air stream therefore acts on the particle flow from the side and if he presses it, the air pressure is increased in the direction away from the relevant compressed air jet nozzle arrangement.
  • the at least one compressed air stream in Area between the particle jet nozzle arrangement and the Baffle is directed against the particle flow. In this area overlap to the baffle and from of these flying particles. Furthermore, it has proven to be advantageously emphasized that the at least one compressed air jet nozzle arrangement is aligned so that you Compressed air flow directed towards the impact surface at an angle is.
  • the second embodiment is a compressed air jet nozzle arrangement on both sides of the particle flow present so that opposed to each other Compressed air flow against each side the particle flow can be directed.
  • the baffle is expediently in aligned essentially vertically.
  • the two particle jet nozzle arrangements of the first embodiment or the two compressed air jet nozzle arrangements the second embodiment in the vertical direction be arranged one above the other. The level at which the can be shifted respective particle stream is thus vertical.
  • the gravity acting on the particles can be controlled by appropriate pressure control Nozzle arrangements can be compensated.
  • the baffle can from the bottom surface of a gutter, tub or bowl-like body formed will. This can be on both sides of the floor area in the essentially obtuse at these attached wall sections exhibit. These wall sections can be an unintentional one Particles leak into the environment prevent.
  • the two particle jet nozzle arrangements of the first Embodiment or the at least one compressed air jet nozzle arrangement the second embodiment can be in the peripheral area the baffle surface.
  • additional compressed air jet nozzle arrangements for deflection of the particle stream directed towards the object inwards there are. These additional compressed air jet nozzle arrangements serve in particular the particles that would fly past the object towards the object redirect.
  • This Electrode device can be of an electrode arrangement between the baffle and the object, conveniently in the area of the baffle, and / or one Electrode arrangement on the side facing away from the object Side of the baffle are formed. In principle, it is enough so it, just either between the object and the Impact surface or on the side facing away from the object to provide an electrode arrangement for the impact surface.
  • both electrode arrangements are expedient present, being between the two electrode arrangements an alternating voltage and between one of the electrode arrangements and a DC voltage is applied to the object, such that the particles reaching the baffle whirled up by means of the alternating voltage field be charged in the area of the baffle and into the DC field accelerating them towards the object immerse as it is in an appropriate manner e.g. emerges from DE-AS 20 36 279.
  • the one located between the object and the baffle Electrode arrangement should be grid or rust-like be designed so that there is a large area Electrode arrangement results and on the other hand the passage the particles to the object practically not hindered becomes.
  • the side of the baffle facing away from the object arranged electrode arrangement can be film-like.
  • Items 1; 1a in particular made of metal, are in the Practice often with a layer against corrosion and / or covered for colored design. This will be done first a coating material in the form of powder, granules, flake-like particles or the like on the respective Item 1 applied. Subsequently, the on the particle layer 1 located by an suitable further processing, especially by exposure to heat, firmly connected and evened out.
  • a device is used to apply the coating material 2; 2a, the object to be coated 1; 1a in one of the device 2; Brought 2a opposite position becomes.
  • the items can be used in series production 1; 1a by means of a transport device only indicated 3; 3a successively the device 2; 2a containing Run through the system (in FIGS. 1 and 3 perpendicular to Drawing level).
  • this particle stream 4 originally consists of two separate particle streams 5, 6 together, the each from a particle jet nozzle arrangement 7 or 8 emerge.
  • the two particle jet nozzle arrangements 7, 8 are spaced from each other and arranged in such a way that the two individual particle streams 5, 6 of opposite Pages obliquely against an object 1 facing impact surface 9 are blown, with which they Hit each other and towards object 1 similar to a reflection, so that they run towards each other and become the common particle stream 4 combine.
  • a particle jet nozzle arrangement 7a available in the area between the baffle 9a and the object 1a is arranged so that the emerging from it Particle flow 5a transverse to the baffle 9a this, expediently against the middle baffle area, is directed.
  • the particle stream 5a also points like the particle streams 5, 6 of the embodiment according to FIG. 1 a certain spread angle. In the drawing are the Clarity because of only a few beam lines.
  • the particle stream 5a becomes, it arrives at the impact surface 9a, on this towards object 1a, again in the manner of a reflection, redirected so that it forms the particle stream 4a. Without further action this particle stream 4a could only have a scattering angle corresponding area of item 1a capture.
  • the at least one compressed air stream 21a, 22a in the area between the particle jet nozzle arrangement 7a and the baffle 9a against the particle flow 4a, 5a is directed so that the compressed air flow both to and away from the baffle 9a flying particles captured and distracted.
  • the at least one compressed air jet nozzle arrangement 19a, 20a so aligned that their compressed air flow 21a, 22a at an angle to the impact surface this is directed.
  • the particle jet nozzle assemblies 7, 8 of the embodiment 1 correspond to the two compressed air jet nozzle arrangements 19a, 20a of the embodiment according to FIG. 3 practically only with the difference that the latter without Particle supply can be used.
  • the two Particle jet nozzle arrangements 7, 8 and in the embodiment 3 the two compressed air jet nozzle arrangements 19a, 20a one above the other in the vertical direction arranged so that the object 1; 1a directed Particle stream 4; 4a shift in this vertical plane leaves.
  • the two Particle jet nozzle arrangements 7, 8 or the two Compressed air jet nozzle assemblies 19a, 20a in another to be arranged as the vertical plane, so that the to Item 1; 1a directed particle stream in this another level is movable.
  • the baffle 9; 9a is substantially vertical. Of the Item 1; 1a is about the same height across from. In the embodiments, the baffle 9; 9a from the bottom surface 10; 10a of a gutter, tub-like or bowl-like body 11; 11a formed.
  • the Baffle 9; 9a expediently the whole body 11; 11a, consist of electrically insulating material. Of the Body 11; 11a is on the circumference of the bottom surface 10; 10a on both sides of this with towards the to be coated Item 1; 1a protruding wall sections 12; 12a provided. These wall sections 12; 12a are expediently essentially obtuse the bottom surface 10; 10a. With the help of this Wall sections 12; 12a is avoided that the particles on the baffle 9; 9a blown past into the environment will. So they form a baffle, so to speak.
  • the two particle jet nozzle arrangements are 7, 8 and the two compressed air jet nozzle arrangements 19a, 20a in the peripheral region of the Baffle 9; 9a arranged. They are on from the bottom surface 10; 10a protruding wall sections 12; 12a of the gutter, tub or bowl-like Body 11; 11a.
  • the particle streams 5, 6 and two compressed air flows 21a, 22a leave in the illustrated Cases the particle jet nozzle arrangements 7, 8 or the compressed air jet nozzle arrangements 19a, 20a, for example parallel to the facing wall section 12 or 12a.
  • additional compressed air jet nozzle arrangements can 23, 24; 23a, 24a for distraction the object-directed particle stream 4; 4a after be present inside. This is a distraction in the The meaning of bundling.
  • the additional ones work Compressed air jet nozzle arrangements 23, 24; 23a, 24a obliquely to item 1; 1a from the respective side forth on the particle flow and in particular on the Particles that are at that of each additional Compressed air jet nozzle arrangement side facing the Particle stream fly.
  • the from the additional Jet nozzle arrangements 23, 24; 23a, 24a emerging Compressed air flows 25, 26 and 25a, 26a are dash-dotted indicated. They are obliquely inward towards item 1; 1a directed towards.
  • the arrangement is made so that they only in the embodiment of FIG. 1 in Area of the common particle stream 4 against this meet and in the embodiment of FIG Compressed air flows 21a, 22a of the compressed air jet nozzle arrangements 19a, 20a do not disturb.
  • the two additional ones Jet nozzle arrangements 23, 24; 23a, 24a are thus with respect to the blowing direction of the particle jet nozzle assemblies 7, 8 of the embodiment according to FIG. 1 or with Regarding the compressed air jet nozzle arrangements 19a, 20a 3 closer to the one to be coated, Item 1; 1a out.
  • Each particle jet nozzle arrangement 7, 8 or each Compressed air jet nozzle arrangement 19a, 20a should be on the opposite side of the particle flow one additional compressed air jet nozzle arrangement assigned be so that in the exemplary embodiments two additional compressed air jet nozzle arrangements available are.
  • the pressure conditions so that in Fig. 1 the jet pressure, for example, on the particle jet nozzle arrangement 7 is so large that the common particle flow 4 runs quite far down, you can with the additional compressed air jet nozzle arrangement 24 this Particle stream that may fly partially past the object would distract towards the inside of item 1.
  • the additional compressed air jet nozzle arrangement 23a by means of the compressed air jet nozzle arrangement 20a upwards Steer displaced particles obliquely towards object 1a.
  • Compressed air jet nozzle arrangements 23, 24; 23a, 24a also on the wall sections 12; 12a of the body 11; 11a, with a greater distance from the floor surface 10; 10a as the particle jet nozzle assemblies 7, 8, respectively Compressed air jet nozzle arrangements 19a, 20a.
  • the device 2; 2a a Electrode device 13, 14; 13a, 14a by one Electrode arrangement 13; 13a between the baffle 9; 9a and item 1; 1a, expediently in the area the baffle 9; 9a, and from an electrode arrangement 14; 14a on the subject 1; 1a facing away from the Baffle 9; 9a is formed.
  • the electrical voltage sources for the electrode arrangements are not shown.
  • Between the two electrode arrangements 13, 14; 13a, 14a is an AC voltage and between one of the two electrode arrangements, advantageously the Electrode arrangement 13; 13a, and item 1; 1a a DC voltage on.
  • Item 1; 1a is provided with the potential 0 volts. In principle, item 1; 1a, however, also any, for the relevant electrode arrangement assume different potential. However, it is particularly useful for security reasons, for this 0 volts to choose.
  • the on the subject 1; 1a facing away from the Baffle 9; 9a arranged electrode arrangement 14; 14a is designed like a film in the exemplary embodiments.
  • the thickness of this film is for better clarity because enlarged compared to the rest of the device shown.
  • the between the baffle 9; 9a located electrode arrangement 13; 13a is formed like a grid or rust, so that it is composed of individual electrodes, of which only for the sake of clarity some with reference number 13; 13a are provided. At these electrodes are expediently coiled wires. Basically, this electrode arrangement 13; 13a be designed so that they from the Particles can be traversed as freely as possible.
  • the two particle jet nozzle arrangements 7, 8 are from a common pressure medium source 15 fed, which expediently a compressed air source is. In principle, however, you could also use a different gas be worked.
  • the particle jet nozzle assembly 7 is via an adjustable valve 16 with the pressure medium source 15 connected so that on the particle jet nozzle assembly 7 a pressure p set during operation can be.
  • the particle jet nozzle assembly 8 is also via an adjustable valve 17 with the pressure medium source 15 connected, this valve 17 a Control valve 18 is connected in parallel.
  • the two adjustable Valves 16, 17 are set in a Relationship to each other, and via the control valve 18 becomes the pressure of the particle jet nozzle assembly 8 varies. In this way, the jet pressure of the Particle jet nozzle arrangement 8 compared to that of the jet nozzle arrangement 7 can be changed so that the common Particle stream 4 in the direction of the jet nozzle arrangement 7 or is moved away from this.
  • the pressure ratios vary during use pulsating, so to speak, so that you can be the one Item 1; 1a continuously sweeping Receives particle stream.
EP97114150A 1996-10-11 1997-08-16 Dispositif d'application d'un produit de revêtement sur un objet Expired - Lifetime EP0835692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19641958A DE19641958A1 (de) 1996-10-11 1996-10-11 Vorrichtung zum Aufbringen von Beschichtungsgut auf einen Gegenstand
DE19641958 1996-10-11

Publications (3)

Publication Number Publication Date
EP0835692A2 true EP0835692A2 (fr) 1998-04-15
EP0835692A3 EP0835692A3 (fr) 2001-04-25
EP0835692B1 EP0835692B1 (fr) 2003-01-22

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ID=7808473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114150A Expired - Lifetime EP0835692B1 (fr) 1996-10-11 1997-08-16 Dispositif d'application d'un produit de revêtement sur un objet

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EP (1) EP0835692B1 (fr)
DE (2) DE19641958A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114054263A (zh) * 2020-08-03 2022-02-18 龚海涛 焊管内壁上油装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347119B4 (de) * 2003-10-10 2007-09-20 Samwer, Konrad, Prof. Dr. Beschichtungsvorrichtung, Beschichtungsverfahren und beschichtetes Objekt

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036279B2 (de) 1970-07-22 1979-04-19 Brennenstuhl, Hugo, 7400 Tuebingen Verfahren zum Abstoßen von Teilchen von einer Unterlage sowie Vorrichtung zur Durchführung des Verfahrens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163111A1 (de) * 1971-12-20 1973-07-05 Mueller Ernst Kg Kopf fuer pulverspruehpistole
JPS5117235A (en) * 1974-08-04 1976-02-12 Senichi Masuda Seidenfuntaitochakusochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036279B2 (de) 1970-07-22 1979-04-19 Brennenstuhl, Hugo, 7400 Tuebingen Verfahren zum Abstoßen von Teilchen von einer Unterlage sowie Vorrichtung zur Durchführung des Verfahrens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114054263A (zh) * 2020-08-03 2022-02-18 龚海涛 焊管内壁上油装置
CN114054263B (zh) * 2020-08-03 2023-04-07 龚海涛 焊管内壁上油装置

Also Published As

Publication number Publication date
EP0835692B1 (fr) 2003-01-22
EP0835692A3 (fr) 2001-04-25
DE19641958A1 (de) 1998-04-16
DE59709184D1 (de) 2003-02-27

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