DE881016C - Device for electrostatic painting or enamelling - Google Patents

Device for electrostatic painting or enamelling

Info

Publication number
DE881016C
DE881016C DEP53872A DEP0053872A DE881016C DE 881016 C DE881016 C DE 881016C DE P53872 A DEP53872 A DE P53872A DE P0053872 A DEP0053872 A DE P0053872A DE 881016 C DE881016 C DE 881016C
Authority
DE
Germany
Prior art keywords
spray
conveyor belt
enamelling
electrostatic painting
wires
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
Application number
DEP53872A
Other languages
German (de)
Inventor
Wilhelm Dipl-Ing Feldmann
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DEP53872A priority Critical patent/DE881016C/en
Application granted granted Critical
Publication of DE881016C publication Critical patent/DE881016C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08Plant for applying liquids or other fluent materials to objects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/20Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/90Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B05B16/95Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08Plant for applying liquids or other fluent materials to objects
    • B05B5/082Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
    • B05B5/084Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects the objects lying on, or being supported above conveying means, e.g. conveyor belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08Plant for applying liquids or other fluent materials to objects
    • B05B5/087Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Description

Fas sind - Einrichtungen zur elektrostatischen Lackierung und Emailherung bekannt, bei denen die zu überziehenden Teile elektrisch geerdet ,auf einem Förderband oder an einer Förderkette durch eine Sprühzelle oder einen Sprühkäfig gezogen werden, der durch Spritzpistolen mit vernebeltem Lack bzw. vernebelter Emailleflüssigkeit angefüllt wird. Hierbei sind in der -Regel besondere Traggestelle erforderlich, um die Teile,durch die Sprühzelle hiüdurchzubringen.Fas are - devices for electrostatic painting and enameling known in which the parts to be coated are electrically grounded on a conveyor belt or pulled through a spray cell or spray cage on a conveyor chain, that by spray guns with atomized paint or atomized enamel liquid is filled. As a rule, special support frames are required here, to get the parts through the spray booth.

Diese Einrichtungen sind jedoch verhältnismäßig umständlich und haben gewisse betriebstechnische Nachtteile. Eine wesentliche Verbesserung wird mit der Erfindung geschaffen, die eine Einrichtung zur elektrostatischen Lackierung :oder Emailllerung betrifft. Erfindungsgemäß besteht das Förderband aus, parallelen Stahldrähten oider Drahtseilen mit Zwischenräumen, lauf .die dIe zu überziehenden Teile aufgelegt werden. Die Drähte b:zw. Drahtseile verlaufen vorzugsweise in Längsrichtung. Sie können, durch Querstege stellenweise miteinander verbunden sein. Die geerdete Oberfläche der Fördereinrichtung isst dann derart klein, @daß kaum. Verluste durch Niederschlag der Suchwebeteilchen eintreten können, da -die Entladung in erster Linie an den weitäusi größerem Oberflächen der zu lackierenden Gegensitände ,stattfindet.However, these facilities are relatively cumbersome and have certain operational disadvantages. A major improvement is made with the Invention created that a device for electrostatic painting: or Enamelling concerns. According to the invention, the conveyor belt consists of parallel steel wires o of wire ropes with spaces in between, the parts to be covered run will. The wires b: zw. Wire ropes preferably run in the longitudinal direction. she can be connected to one another in places by transverse webs. The grounded surface the conveyor then eats so small that @ that hardly. Losses due to precipitation the search web particles can occur, since the discharge primarily to the Faräusi larger surfaces of the objects to be painted takes place.

.Im folgenden ist die Erfindung an Hand eines Inder Zeichlvung dargestellteh Ausfühirumigsbeispiels erläutert.The invention is illustrated below using an Indian drawing Ausfühirumigsbeispiels explained.

i ist das aus vorzugsweise in Förderrichtung verlaufenden parallelen Drähten zusammengesetzte Förderband, :dlas über zwei Rollren 2, 3 ;geführt ist. Die aufgelegten Werkstücke 4 durchlaufen zunächst einen Sprührauen 5, in welchen :der Lack bzw. die Emailleflüssigkeit in zerstäubter Form mittels einer Spritzpistole 6 :eingeführt wird. In dem Raum 5 befindet :sich :ein laus Sprühdrähten 7 ;gebildeter Sprühkäfig. Die Drähte 7 sind zwischen zwei U-förmigen, das Förderband i teilweise umgreifenden Haltern 8 ausgespannt ,und mit hoher GLeichspamxiung elektrisch geladen, die .durch einen Hochspannungsdurchführungssolator 9 zugeführt wird, während der Stützi,s:olator io lediglich zum Tragen der Einrichtung dient. An dem. Sprühraum 5 schließt sich eine Trockenzone i i an, .dIe Heizelemente 12, z. B. StrahlheizkörpeT oder Ultnarotstrahler, enthält. SprühzOne 5 und Trockenzone i i bilden zusammen einen tunnelartigen Raum.' Die in den Sprühraum 5 :eingeführten zerstäubten Teilchen der überzugsfiüssigkeit erhalten in bekannmber Weise durch das Zerstäuben eine elektrische Ladung und schlagen sich innerhalb :dies elektrischen Feldes zwischen dem mit Hüichspannung aufgeladenen Sprühkäfig und den geerdeten, zu überziehenden Teilen nieder. An den Förderdrähten bleibt infolge ihrer kleinen Oberfläche hierbei verhältnismäßk wenig Flüssigkeit hängen.. Zu ihrer laufenden Reinigung können Abstreifvorrichtungen vorgesehen werden. Im mittleren Teil :des Tunnels ist eigne Absaugeeinrichtumg anittels eines Rehres 13 :angeschlossen, welche die Luft von beiden Tunnelenden her an.-saugt. Dadurch wird einerseits der Flüssigkeitsnebel aus dem vorderen Teil :des Tunnels in die Sprühzone hineingesaugt, soweit er sich nicht bereits niedergeschlagen hat. Infolgedessen ist es möglich, mit einem besonders geringen Luftdruck der Spritzpistole zu arbeiten. Andererseits kann durch die Absaügeeinrichtung in der Mitte des Tunnels die Trocknung .der frisch lackierten bzw. frisch emaillierten Teile im zweiten Teil des Tunnels gefördert werden. Hierzu kann dem Austrittsende des Tunnels Warmluft zugeführt werden. Ferner können ixn Tunnel ;selbst die Heizelemente 12 in Form von Strahlheizkörpernoder Ultrarotstrahlern angebracht werden, welche die durchziehende angesaugte Luft und die Werksitücke in zweckmäßoger Weise erwärmen. Die entwickelte Feuchtigkeit bzw. bei Lack Blas verdunstete Lösungsmittel wird durch die Absiaugulrg sicher :entfernt.i is that of parallel lines preferably running in the conveying direction Conveyor belt composed of wires: which is guided over two rollers 2, 3;. The placed workpieces 4 first pass through a spray area 5, in which : the paint or the enamel liquid in atomized form using a spray gun 6: is introduced. In the room 5 there is: a laus spray wires 7; formed Spray cage. The wires 7 are between two U-shaped, the conveyor belt i partially encompassing holders 8 unclamped, and electrically charged with a high level of equilibrium, which. is fed through a high-voltage bushing insulator 9, during the Stützi, s: olator io is only used to carry the device. To the. Spray room 5 is followed by a drying zone i i, .dIe heating elements 12, z. B. Radiant heater T. or ultra-infrared radiators. Spray zone 5 and drying zone i form together a tunnel-like room. ' The atomized particles introduced into the spray room 5 :. the coating liquid is given an electrical effect in a known manner through atomization Charge and beat within: this electric field between the one with a high voltage charged spray cage and the earthed parts to be coated. To the Due to their small surface area, conveyor wires remain relatively little Liquid hanging. Wiping devices can be provided for regular cleaning will. In the middle part: the tunnel has its own suction device by means of one Rehres 13: connected, which sucks in the air from both ends of the tunnel. On the one hand, this causes the liquid mist from the front part: the tunnel sucked into the spray zone if it has not already precipitated. As a result, it is possible to use the spray gun with a particularly low air pressure to work. On the other hand, through the suction device in the middle of the tunnel the drying of the freshly painted or freshly enamelled parts in the second part of the tunnel. For this purpose, warm air can be supplied to the outlet end of the tunnel are fed. Furthermore, ixn tunnels; even the heating elements 12 in the form of Radiant heaters or ultrared radiators are attached, which allow the passing through Heat the sucked in air and the workpieces in a suitable manner. The developed Moisture and / or solvents that have evaporated in the case of paint blown are removed by the vacuum cleaner safe: removed.

Bei einer solchen Anordnung herrscht irr Bereich des gesamten Tunnels ständig ein kleiner Unterdruck.- Es ist daher weiterhin vorteilhaft, :die Iso-Iatoxen Bund Durchführungen 9, 1 o des Sprühkäfigs, welche zweckmäßig in Hauben angeordnet werden, dadurch von der zerstäubten Auftragsflüssigkeit freizuhalten, daß in den, Hauben kleine Öffnungen 14, 15 vorgesehen sind, durch welche ständig ein schwacher Kühlluftstrom angesaugt wird.With such an arrangement, there is an area of the entire tunnel constantly a small negative pressure.- It is therefore still advantageous: the Iso-Iatoxen Bund ducts 9, 1 o of the spray cage, which are expediently arranged in hoods be kept free of the atomized application liquid that in the, Hoods small openings 14, 15 are provided through which constantly a weak Cooling air flow is sucked in.

Es sind Trockenvorrichtungen für lackierte Gegenstände bekannt, bei denen die zu trocknenden Gegenstände auf einem: Förderband aus einzelnen Drahtseilen oder -bändern durch :den Trockenranrn geführt werden (vgl. Patentschrift 741 452).There are known drying devices for painted objects which the objects to be dried on a: conveyor belt made of individual wire ropes or belts through: the drying belt (see patent specification 741 452).

Bei der vorliegenden Erfindung handelt es sich um :die Verwendung von Fürderbändern von im wesentlichen :gleicher Bauart bei Einrichtungen zur elektrostatischen Lackierung, bei denen ganz aridere Wirkungen als bei den bekannten Trockenvorrichtungen auftreten.The present invention is: the use of conveyor belts of essentially: the same design for devices for electrostatic Painting with very different effects than the known drying devices appear.

Claims (2)

PATENTANSPRÜCHE: i. Einrichtung zur ielektrostatischen Lackierung :oder EmaUlierung, beider die zu überziehenden Teüe ;geerdet mittels eines Förderbandes durch :einen Sprührauem bewegt werden, dadurch gekennzeichnet, daß das Förderband aus parallelen Stahldrähten :oder Drahtseilen mit Zwischenräumen besteht. PATENT CLAIMS: i. Device for electrostatic painting : or enamelling, both the parts to be covered; earthed by means of a conveyor belt are moved by: a spray chamber, characterized in that the conveyor belt made of parallel steel wires: or wire ropes with gaps between them. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, :däß die Drähte :des Förderbandes mit einer Abstneifvorrichtung versehen sind. Angezogene Druckschriften: Deutsche Patentschriften Nr. 741 452, 619 8oo; britische Patentschrift Nr. 181 o82.2. Establishment according to claim i, characterized in that: that the wires: of the conveyor belt with a Stripping device are provided. Referred publications: German patents No. 741 452, 619 8oo; British Patent No. 181 o82.
DEP53872A 1949-09-04 1949-09-04 Device for electrostatic painting or enamelling Expired DE881016C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP53872A DE881016C (en) 1949-09-04 1949-09-04 Device for electrostatic painting or enamelling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP53872A DE881016C (en) 1949-09-04 1949-09-04 Device for electrostatic painting or enamelling

Publications (1)

Publication Number Publication Date
DE881016C true DE881016C (en) 1953-06-25

Family

ID=7386722

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP53872A Expired DE881016C (en) 1949-09-04 1949-09-04 Device for electrostatic painting or enamelling

Country Status (1)

Country Link
DE (1) DE881016C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243340A3 (en) * 2001-03-22 2005-03-16 CEFLA Soc. Coop. a r.l. Machine for the horizontal painting of products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB181082A (en) * 1921-03-02 1922-06-02 Charles Hall Brown Improvements in and relating to drying apparatus
DE619800C (en) * 1934-05-08 1935-10-07 Roehrenwerke Akt Ges Deutsche Device for the execution of the process for protecting metal coatings of metallic bodies with an oil coating
DE741452C (en) * 1940-02-13 1943-11-11 Lufttechnische Ges M B H Device for drying painted cans

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB181082A (en) * 1921-03-02 1922-06-02 Charles Hall Brown Improvements in and relating to drying apparatus
DE619800C (en) * 1934-05-08 1935-10-07 Roehrenwerke Akt Ges Deutsche Device for the execution of the process for protecting metal coatings of metallic bodies with an oil coating
DE741452C (en) * 1940-02-13 1943-11-11 Lufttechnische Ges M B H Device for drying painted cans

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243340A3 (en) * 2001-03-22 2005-03-16 CEFLA Soc. Coop. a r.l. Machine for the horizontal painting of products

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