EP0674949B1 - Farbspritzanlage - Google Patents

Farbspritzanlage Download PDF

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Publication number
EP0674949B1
EP0674949B1 EP95400708A EP95400708A EP0674949B1 EP 0674949 B1 EP0674949 B1 EP 0674949B1 EP 95400708 A EP95400708 A EP 95400708A EP 95400708 A EP95400708 A EP 95400708A EP 0674949 B1 EP0674949 B1 EP 0674949B1
Authority
EP
European Patent Office
Prior art keywords
carriage
members
air
sprayer
space
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
EP95400708A
Other languages
English (en)
French (fr)
Other versions
EP0674949A1 (de
Inventor
Pierre Ehinger
Patrice Gory
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.)
Sames SA
Original Assignee
Sames SA
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 Sames SA filed Critical Sames SA
Publication of EP0674949A1 publication Critical patent/EP0674949A1/de
Application granted granted Critical
Publication of EP0674949B1 publication Critical patent/EP0674949B1/de
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
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/60—Ventilation arrangements specially adapted therefor

Definitions

  • the invention relates to a device for projecting coating product, such as for example used in the coating of motor vehicle bodies.
  • the bodies are moved by a conveyor and the product projection machine covering includes a gantry supporting a beam horizontal perpendicular to the path of the bodies, this beam carries one or more sprayers of coating product.
  • These machines often referred to as roof machines, are of utmost importance for the covering objects to be painted, especially when these objects have many horizontal surfaces or perpendicular to the path of objects on the conveyor such as the front, hood, roof, trunk and the rear of a motor vehicle body.
  • a machine roof comprising a single carriage carrying one or several projector (s) and moving along the beam at speeds of the order of 1.5 m / s. This movement quick sweep coating all surfaces planes with a minimum number of supply systems coating product, in spray air and, possibly in high voltage.
  • the carriages are driven by belts or chains located on the side of the beam facing the bodywork or on a lateral face of the beam.
  • the rapid movements of the or carts remove dust particles or dried coating product that adhere to these systems and, given the turbulence induced at neighborhood of the projector (s), some of these particles are deposited on the bodywork, which is damaging to the desired surface finish.
  • the carriage is sometimes asymmetrical, that is to say for example provided with a arms cantilevered on one side of the beam. If the beam is susceptible to rotational movements around its largest axis, in particular to allow the projector to be permanently perpendicular to the surface to be coated, including in the case of the front and from the rear of the body, the asymmetry of the carriage induces different behavior of air flow around the projector according to the direction of rotation of the beam which is all the more difficult for the operator to manage.
  • the invention solves all of these problems.
  • a product projection device covering machine forming a roof comprising two gantries supporting a beam moving at altitude by in relation to said gantries and in rotation about an axis parallel to its largest dimension, at least one carriage carrying at least one projector being susceptible this move along said beam, characterized in that, over most of its length, said beam is formed of two parallel spars and spaced one of the other defining between them a space and in that said carriage is mounted movable between said beams and extends at least partially in said space.
  • the device which is installed in a projection booth provided with means capable of creating a dominant draft is characterized in that said beam is arranged so that said air stream dominant leads, in the space defined between the two stringers, air circulation having substantially the same meaning that the projection of coating product.
  • the air flow is only a little disturbed since the dominant air current installed in the cabin by ventilation system can be maintained to the vicinity of the projector (s).
  • the turbulence no longer have a tendency to dirty headlights, cart or beam and particles of dust or product coating are no longer dragged toward the surface to put on.
  • the beam used is of small section, therefore light, which reduces its inertia and optimizes the dimensioning of the gantries which support it and the motors which ensure its movement.
  • At least some of said carriage carrying said projector is capable of movements perpendicular to the axis of said beam.
  • figure 1 is intended for coating of automobile bodies 1 carried by a conveyor 2 along a path along an axis XX '.
  • She includes, among other things, two gantry cranes 3 and 4 arranged on either side of the conveyor path and supporting a beam 5 along which a carriage 6 is susceptible to move.
  • the movement of the carriage 6 allows it to sweep the entire width of the body 1 in order to place two projectors 7 and 8 facing all the surfaces to put on.
  • the beam is made integral with the gantries 2 and 4 by two bearings 9 and 10 which allow it to be made perform rotational movements around an axis YY ' parallel to its largest dimension.
  • Landings 9 and 10, and consequently the beam 5 and the apparatuses that she wears, are mobile in altitude compared to gantry cranes 3 and 4, thanks to drive systems known, such as that described in the application FR-A-27 14 853.
  • a dominant vertical air flow from top to bottom in the direction of the arrows F is created in cabin 14 of projection containing the installation thanks to a ventilation 15, for example comprising an air source located in the plenum, or ceiling of the cabin.
  • the projectors 7 and 8 are mounted at the end of a extension 11 at the ends of an arm 12 pivotally mounted in its middle on a wrist 13 provided with a horizontal axis.
  • This mounting allows the relative altitude of the projectors 7 and 8. In this way, it is possible, at the end of carriage 6 travel to lower the projector outside along the side of the body in order to obtain partial overlap of the coating area with that a projector carried by a lateral machine and intended for line the sides of the body.
  • the beam 5 is shown in perspective. It includes, over most of its length, two side members 20 and 21, in polyester resin or glass fiber filled epoxy, which are integral with their ends of the bearings 9 and 10. They are parallel and spaced from each other so as to spare them a space 22 in which the extension 11 of the carriage 6 at the end of which are housed the projectors 7 and 8.
  • the upper part 26 of the carriage 6 has a width greater than that of the space 22 and rests on the side members 20 and 21.
  • This stability of the air flow in the area of projection avoids recirculations of the cloud including coating product particles to the top of the cabin: the side members 20 and 21 and the carriage 6 do not risk not to be soiled by untimely product returns.
  • the beam thus formed is symmetrical by relative to a vertical plane containing the axis YY '. She has the same aerodynamic influence and induces the same inertia constraints on its drive systems which that is its direction of rotation around the axis YY '.
  • the carriage is driven in displacement along the axis YY 'by an electric motor 23 located in one of the bearings 9 or 10 and driving two pulleys 24 and 25 which are respectively associated with two pulleys crazy 24 'and 25' located in the other landing.
  • belts 27 and 28 notched and each forming a loop closed are tensioned respectively between the pulleys 24 and 24 'on the one hand and 25 and 25' on the other. They are housed in the longitudinal members 20 and 21 and their outer faces are in the open air opposite, respectively, two openings 20A and 21A formed in the upper walls of the stringers.
  • Belts 27 and 28 are slightly more wider than the openings 20A and 21A, which allows them cover and seal completely. This avoids that dirt gets into the side members 20 and 21.
  • the carriage 6, and in particular its upper part 26, are integral with the two belts 27 and 28: they are displaced along the axis YY 'by the movements of belts.
  • Counterweights 29, housed in the longitudinal members 20 and 21 are moved in the opposite direction of the carriage 6 by the belts 27 and 28, which avoids subjecting the gantry cranes 3 and 4 to too great pendulum movements.
  • Any soiling generated by this system drive due to the position of the belts 27 and 28 and the rotation of the beam 5 around the axis YY ', do not may appear only on the side opposite the object to be coated, which prevents them from being dragged towards it.
  • Uncoilers 30 and 31 are respectively housed in the side members 20 and 21 and contain the conduits coating product and air supply spraying and training and possibly the power cables in the case of a projection device by electrostatic means.
  • the unwinders, conduits and cables are completely housed inside beam 5: they are protected from contamination and a leak in one of the pipes will not necessarily result in pollution of the bodywork in the course of coating.
  • a projection installation coating product and the fact that the side members are made of insulating material, it is then possible to keep unwinders and ducts at different electrical potentials.
  • the section of extension 11 is visible in the figure 3. This profile is symmetrical because the carriage is susceptible travel in both directions. It has an oblong shape intended to limit the compression / depression effect of the air located in space 22 when the carriage 6 and therefore to minimize the formation of turbulence at the rear of extension 11 in motion. This avoids disturb the flow outside the space 22, and particular to draw air in the vicinity of the spotlights 7 and 8.
  • FIGS. 4 a and 4 b differs from that of FIGS. 1 to 3 in that the distance of the projectors 7 and 8 relative to the axis YY 'is adjustable. Elements identical to those in FIG. 2 have the same reference numbers.
  • FIG. 4 a the distance between the projectors 7 and 8 and the beam 5 is maximum.
  • Figure 4b this distance is reduced, the projectors are closer to the beam.
  • a motor 101 associated with a ball screw 102 is mounted on a carriage 106 secured to the belts 27 and 28.
  • a second carriage 116 secured to the nut of the ball screw and supporting the upper part 26 of the carriage and the extension 11 can be moved aloft on rails 103 and 104 carried by the carriage 106 and perpendicular to the axis YY '.
  • This translational movement and the movement of rotation of the shaft 12 around the wrist 13 allow keep projectors 7 and 8 at a distance optimal in relation to the object to be coated and perpendicular to it.
  • the invention applies equally well to a device for painting only with a powder coating device and can be used with one or more pneumatic headlamp (s), rotary (s), electrostatic (s) or not. Its use is not limited to the automotive field but extends to all installations incorporating roof machines.

Landscapes

  • Spray Control Apparatus (AREA)

Claims (10)

  1. Vorrichtung zum Spritzen von Beschichtungsmaterial in Form einer Überkopfmaschine mit zwei Portalrahmen (2, 3), die einen bezüglich der Höhe in Bezug auf die Portalrahmen und bezüglich der Drehung um eine Achse parallel zu seiner größten Abmessung bewegbaren Balken (5) tragen, mindestens einen Wagen (6), der mindestens einen Projektor (7, 8) trägt und längs des Balkens verschiebbar ist,
    dadurch gekennzeichnet,
    daß der Balken über den größten Teil seiner Länge aus zwei parallelen Längsholmen (20, 21) gebildet ist, die mit Abstand zueinander angeordnet sind und einen zwischen ihnen liegenden Raum begrenzen und daß der Wagen bewegbar zwischen den Längsholmen befestigt ist und sich mindestens teilweise in den Raum hinein erstreckt.
  2. Vorrichtung nach Anspruch 1, die in einer mit Mitteln zum Erzeugen eines vorherrschenden Luftstroms ausgerüsteten Spritzkabine installiert ist, dadurch gekennzeichnet, daß der Balken derart angeordnet ist, daß der vorherrschende Luftstrom (F) in dem zwischen den zwei Längsholmen (22) begrenzten Raum (22) eine Luftzirkulation bedingt, die im Wesentlichen die gleiche Richtung wie das Spritzen des Beschichtungsmaterials aufweist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Wagen (6) den Raum (22) vollkommen durchquert.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Wagen von einem Satz Treibriemen (27, 28) zur Verschiebung längs des Balkens (5) angetrieben wird, die gegenüberliegend zum Projekt (7, 8) in Bezug auf die Drehachse (YY') des Balkens liegen.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Treibriemen (27, 28) in dem Längsholmen (20, 21) aufgenommen sind, wobei die äußeren Flächen der Treibriemen jeweils in freier Luft gegenüber von zwei Öffnungen (20A, 21A) liegen, die in den oberen Wänden der Längsholme ausgearbeitet sind.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Projektor am Ende einer Erstreckung (11) des Wagens aufgenommen ist, der an der Seite des zu beschichtenden Objekts liegt.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Projektor (7, 8) auf einem Arm (12) befestigt ist, der mit der Erstreckung (11) über ein eine Schwenkbewegung des Arms zulassenden Gelenk verbunden ist.
  8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Erstreckung (11) profiliert ist, um minimale aerodynamische Störungen während seiner Verschiebungen zu erzeugen.
  9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Versorgungskanäle für Beschichtungsmaterial (30) einerseits und Versorgungskanäle für Luft und die elektrischen Kabel andererseits (31) jeweils in jedem der zwei Längsholme (20, 21) angeordnet sind.
  10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mindestens ein Teil des Wagens (116, 26, 11), der den Projektor (7, 8) trägt, für Bewegungen senkrecht zur Achse (YY') des Balkens (5) geeignet ist.
EP95400708A 1994-03-30 1995-03-29 Farbspritzanlage Expired - Lifetime EP0674949B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9403751 1994-03-30
FR9403751A FR2718063B1 (fr) 1994-03-30 1994-03-30 Dispositif de projection de produit de revêtement.

Publications (2)

Publication Number Publication Date
EP0674949A1 EP0674949A1 (de) 1995-10-04
EP0674949B1 true EP0674949B1 (de) 1999-06-02

Family

ID=9461586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400708A Expired - Lifetime EP0674949B1 (de) 1994-03-30 1995-03-29 Farbspritzanlage

Country Status (4)

Country Link
US (1) US5630876A (de)
EP (1) EP0674949B1 (de)
DE (1) DE69509963D1 (de)
FR (1) FR2718063B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160576A1 (it) * 2016-02-09 2017-08-09 Maema S R L Unipersonale Macchina per spruzzare vernici o polveri sulle superfici di manufatti
CN107684997B (zh) * 2017-05-25 2019-04-12 江苏景中景工业涂装设备有限公司 一种新型环保喷漆装置
CN110405420B (zh) * 2019-08-01 2021-05-04 常熟市天盛钢结构有限公司 一种钢结构网架杆件加工工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321983A (en) * 1941-02-13 1943-06-15 Gen Motors Corp Roof spraying machine
US2744033A (en) * 1951-11-28 1956-05-01 Ransburg Electro Coating Corp Method and apparatus for spray coating of articles
US2764893A (en) * 1955-03-14 1956-10-02 Charles F Falkenberg Automobile washing device, including traveling carriage
US2911835A (en) * 1956-07-05 1959-11-10 Deering Milliken Res Corp Traversing arrangement
US3885066A (en) * 1972-11-24 1975-05-20 Ppg Industries Inc Method for coating continuously advancing substrate
US4133255A (en) * 1977-03-21 1979-01-09 Guice John J Paint spray booth and method of painting an article therein
US4233933A (en) * 1979-05-21 1980-11-18 Ford Motor Company Spray coating machine
US4901985A (en) * 1988-11-10 1990-02-20 Magneco/Metrel, Inc. Apparatus for spraying refractory lining
CA2051246C (en) * 1990-10-09 2000-02-29 Jeffrey R. Shutic Apparatus for mounting and moving coating dispensers
JP2811505B2 (ja) * 1990-11-29 1998-10-15 エービービー・インダストリー株式会社 塗装装置

Also Published As

Publication number Publication date
EP0674949A1 (de) 1995-10-04
US5630876A (en) 1997-05-20
DE69509963D1 (de) 1999-07-08
FR2718063A1 (fr) 1995-10-06
FR2718063B1 (fr) 1996-06-14

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