EP0273336A2 - Dispositif d'application de peinture à base d'eau à l'aide d'un atomiseur rotatif ou autre avec charge directe ou charge par contact - Google Patents

Dispositif d'application de peinture à base d'eau à l'aide d'un atomiseur rotatif ou autre avec charge directe ou charge par contact Download PDF

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Publication number
EP0273336A2
EP0273336A2 EP87118911A EP87118911A EP0273336A2 EP 0273336 A2 EP0273336 A2 EP 0273336A2 EP 87118911 A EP87118911 A EP 87118911A EP 87118911 A EP87118911 A EP 87118911A EP 0273336 A2 EP0273336 A2 EP 0273336A2
Authority
EP
European Patent Office
Prior art keywords
paint
ink reservoir
reservoir
ring line
flexible insulation
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
EP87118911A
Other languages
German (de)
English (en)
Other versions
EP0273336B1 (fr
EP0273336A3 (en
Inventor
Horst Klemm
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Lacke und Farben 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 BASF Lacke und Farben AG filed Critical BASF Lacke und Farben AG
Priority to AT87118911T priority Critical patent/ATE77574T1/de
Publication of EP0273336A2 publication Critical patent/EP0273336A2/fr
Publication of EP0273336A3 publication Critical patent/EP0273336A3/de
Application granted granted Critical
Publication of EP0273336B1 publication Critical patent/EP0273336B1/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
    • 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
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
    • B05B5/1633—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom the arrangement comprising several supply lines arranged in parallel, each comprising such an intermediate container
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging

Definitions

  • the invention relates to a device for water-based paint application with high-speed rotary atomizers via direct or contact charging according to the preamble of the main claim.
  • the water-based paint system In contrast to a conventional filler or topcoat, the water-based paint system cannot be adjusted to the specific paint resistance normally required for electrostatics for chemical-physical reasons. It is therefore necessary for the normally earthed paint supply line to be galvanically isolated from the high-voltage spray systems in order to prevent the high voltage from flowing away, so to speak. For this reason, a so-called external charging system, i.e. to use a so-called external charge, but it had to be found that the precipitation efficiency was very negative, which is particularly important in the case of high relative atmospheric humidity.
  • ink reservoirs are used for direct charging, both of which are set up insulated from earth.
  • One ink supply container supplies one or more spray systems via a pump and a so-called cabin line, while the other ink supply container is designed as an intermediate filling station.
  • the cabin ring line and the first ink reservoir equipped with a pump are insulated from earth and since this ink reservoir can only hold a limited amount of ink material, on the other hand so-called continuous operation is desired, it must be refilled when a certain ink level is reached.
  • this ink reservoir can only hold a limited amount of ink material, on the other hand so-called continuous operation is desired, it must be refilled when a certain ink level is reached.
  • the first storage container from the ring line is filled with coloring material and during this time this storage container is at earth potential. After closing the valves, this intermediate container is placed at high voltage potential and then filled.
  • the filling of the ink reservoir equipped with a pump and the intermediate filling of the intermediate container are fully automatic.
  • the invention has for its object a to create direction for a water-based paint application with high-speed rotary atomizers and so-called direct charging, in which this mechanical effort, as was required in the prior art, is avoided.
  • the invention proposes that the normally grounded ring line be connected to two distributor lines, which are connected to the interior of a paint reservoir, with the interposition of an electrically insulating switching mechanism.
  • a flexible insulation is arranged within this ink reservoir, which divides the interior of the ink reservoir into two container interiors.
  • the flexible insulation is so large that it can lay against the inner wall of the paint reservoir in one or the other position. Due to the flexible insulation, the ink reservoir is also divided into two electrically separate areas with regard to its two container jacket parts.
  • storage container connect two paint supply lines, which are equipped with the high-speed rotary atomizers at their end.
  • one of the two distribution lines is connected to the ring line and now the interior of the ink reservoir located in the area of the mouth of this distribution line can be filled with color material, the ink supply line adjoining this interior being closed Color material filled via the ring line and the flexible insulation lies in the container on the inner wall of the container part, which is not connected to the distributor line connected to the ring line.
  • the switching mechanism is switched over and now the coloring material is fed from the ring line into the interior of the container, which has not been filled with coloring material so far, the pressure in the ring line causing the flexible insulation to the one in the container Color expresses. If the previously closed ink supply line is now opened, the pressure from the ring line via the distributor line, with the flexible insulation interposed, presses the ink material in the container through the first ink supply line to the high-speed rotary bell, the ink supply line now being closed, which connects to the interior, which at this time is connected to the ring line by opening the switching mechanism.
  • the isolation gap on the switching mechanism and the flexible insulation in the container ensure galvanic potential isolation at all times, the material pressure of the ring line being sufficient to supply the paint to the high-speed rotary atomizers.
  • 1 denotes a ring line, at the end of which a switching mechanism 2 is arranged.
  • the two branches of the switching mechanism are connected to distribution lines 3 and 4, which open into an ink reservoir 5.
  • this ink reservoir 5 is shown as a ball or cylinder, but this is not absolutely necessary, the size of the amount of consumption should be adapted.
  • a flexible insulation 6 is provided which is of such a size that it is able to contact the inner wall of the ink reservoir 5.
  • the flexible insulation 6 is arranged centrally between the two ink reservoir parts. In this way, two mutually insulated container casing parts 7 and 8 are created and two mutually insulated container interiors 9 and 10.
  • Paint supply lines open into these interiors 9 and 10, a paint supply line 11 connecting to the interior 9 and a paint supply line 12 connecting to the interior 10, which lead to the actual high-speed rotary atomizers not shown in the drawing.
  • arrows F represent a position of the switching mechanism 2 such that the color material coming from the ring line 1 is supplied via the distributor line 3 to the interior 9 of the ink reservoir 5.
  • a valve provided in the paint supply line 11 is closed in this state and a valve provided in the paint supply line 12 is opened.
  • the interior 10 formed on the other side of the flexible insulation 6 is filled with paint material, so that the pressure of the ring line is now over the distribution line 3 acts on the outside of the flexible insulation 6 so that it is able to express the actual color material located in the interior 10 via the color supply line 12.
  • a switching mechanism 2 is switched.
  • the interior 9 has been filled with color material and the interior 10 is emptied and now, by switching the switching mechanism 2 via the distributor line 4, pressure is exerted on the other outside of the flexible insulation and thus, after opening the valve provided in the paint supply line 11, that in the interior 9 then located color material is expressed from the ink supply line 11, while the valve provided in the ink supply line 12 is closed.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Spray Control Apparatus (AREA)
  • Cable Accessories (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP19870118911 1986-12-24 1987-12-19 Dispositif d'application de peinture à base d'eau à l'aide d'un atomiseur rotatif ou autre avec charge directe ou charge par contact Expired - Lifetime EP0273336B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118911T ATE77574T1 (de) 1986-12-24 1987-12-19 Vorrichtung fuer eine wasserlackapplikation mit hochrotationszerstaeubern oder mit anderen applikationssystemen ueber direktaufladung bzw. kontaktaufladung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644536A DE3644536C1 (de) 1986-12-24 1986-12-24 Vorrichtung fuer eine Wasserlackapplikation mit Hochrotationszerstaeubern ueber Direktaufladung oder Kontaktaufladung
DE3644536 1986-12-24

Publications (3)

Publication Number Publication Date
EP0273336A2 true EP0273336A2 (fr) 1988-07-06
EP0273336A3 EP0273336A3 (en) 1988-09-21
EP0273336B1 EP0273336B1 (fr) 1992-06-24

Family

ID=6317267

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88900881A Pending EP0344172A1 (fr) 1986-12-24 1987-12-19 Dispositif pour appliquer de la laque a l'eau au moyen de pulverisateurs a vitesse de rotation elevee ou d'autres systemes d'application par chargement direct ou par contact
EP19870118911 Expired - Lifetime EP0273336B1 (fr) 1986-12-24 1987-12-19 Dispositif d'application de peinture à base d'eau à l'aide d'un atomiseur rotatif ou autre avec charge directe ou charge par contact

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88900881A Pending EP0344172A1 (fr) 1986-12-24 1987-12-19 Dispositif pour appliquer de la laque a l'eau au moyen de pulverisateurs a vitesse de rotation elevee ou d'autres systemes d'application par chargement direct ou par contact

Country Status (9)

Country Link
US (1) US4993644A (fr)
EP (2) EP0344172A1 (fr)
JP (1) JPH0636893B2 (fr)
AT (1) ATE77574T1 (fr)
BR (1) BR8707928A (fr)
CA (1) CA1298701C (fr)
DE (2) DE3644536C1 (fr)
ES (1) ES2033291T3 (fr)
WO (1) WO1988004957A2 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717929A1 (de) * 1987-05-27 1988-12-08 Behr Industrieanlagen Verfahren und anlage zum elektrostatischen beschichten mit leitfaehigem material
FR2646106B1 (fr) * 1989-04-19 1991-07-19 Sames Sa Installation de projection par voie electrostatique d'un produit liquide conducteur et dispositif d'isolation pour un circuit de distribution d'un produit liquide conducteur
FR2654365B1 (fr) * 1989-11-14 1992-02-21 Sames Sa Installation d'application de produit de revetement conducteur, par voie electrostatique.
FR2656460B1 (fr) * 1989-12-22 1994-02-11 Sames Sa Dispositif d'isolation electrique formant element de conduit et installation comportant un tel dispositif.
DE4013938A1 (de) * 1990-04-30 1991-10-31 Behr Industrieanlagen Verfahren und anlage zum serienweisen beschichten von werkstuecken mit leitfaehigem beschichtungsmaterial
DE4013937A1 (de) * 1990-04-30 1991-10-31 Behr Industrieanlagen Verfahren und anlage zum serienweisen beschichten von werkstuecken mit leitfaehigem beschichtungsmaterial
US5326031A (en) * 1992-10-15 1994-07-05 Nordson Corporation Apparatus for dispensing conductive coating materials including color changing capability
US5549755A (en) * 1994-12-08 1996-08-27 Nordson Corporation Apparatus for supplying conductive coating materials including transfer units having a combined shuttle and pumping device
US5647542A (en) * 1995-01-24 1997-07-15 Binks Manufacturing Company System for electrostatic application of conductive coating liquid
EP1790203B1 (fr) 2004-07-21 2015-12-30 Mevion Medical Systems, Inc. Generateur de forme d'ondes a radiofrequence programmable pour un synchrocyclotron
ES2685244T3 (es) 2005-10-07 2018-10-08 Dürr Systems Ag Dispositivo de suministro de agente de revestimiento y procedimiento de funcionamiento correspondiente
US8020784B2 (en) * 2005-10-07 2011-09-20 Durr Systems Inc. Coating material supply installation and associated operating procedure
EP2389980A3 (fr) 2005-11-18 2012-03-14 Still River Systems, Inc. Radiothérapie à particules chargées
US8003964B2 (en) 2007-10-11 2011-08-23 Still River Systems Incorporated Applying a particle beam to a patient
US8581523B2 (en) 2007-11-30 2013-11-12 Mevion Medical Systems, Inc. Interrupted particle source
US8933650B2 (en) 2007-11-30 2015-01-13 Mevion Medical Systems, Inc. Matching a resonant frequency of a resonant cavity to a frequency of an input voltage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR901634A (fr) * 1943-09-16 1945-08-01 Cie Ingersoll Rand Procédé et appareil pour la pulvérisation des liquides
FR2572662A1 (fr) * 1984-11-05 1986-05-09 Ransburg Sa Procede et appareil pour le revetement automatique par pulverisation electrostatique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122320A (en) * 1958-03-20 1964-02-25 Ford Motor Co Method for filling electrically charged receptacle
NL187613C (nl) * 1978-01-11 1991-12-02 Akzo Nv Inrichting voor het elektrostatisch verspuiten van elektrisch geleidende lak.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR901634A (fr) * 1943-09-16 1945-08-01 Cie Ingersoll Rand Procédé et appareil pour la pulvérisation des liquides
FR2572662A1 (fr) * 1984-11-05 1986-05-09 Ransburg Sa Procede et appareil pour le revetement automatique par pulverisation electrostatique

Also Published As

Publication number Publication date
DE3644536C1 (de) 1987-11-19
EP0344172A1 (fr) 1989-12-06
EP0273336B1 (fr) 1992-06-24
WO1988004957A2 (fr) 1988-07-14
WO1988004957A3 (fr) 1988-08-11
EP0273336A3 (en) 1988-09-21
JPH01503212A (ja) 1989-11-02
ATE77574T1 (de) 1992-07-15
JPH0636893B2 (ja) 1994-05-18
US4993644A (en) 1991-02-19
CA1298701C (fr) 1992-04-14
DE3780017D1 (de) 1992-07-30
ES2033291T3 (es) 1993-03-16
BR8707928A (pt) 1989-10-31

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