EP0380386B1 - Spray coating method and spray coating installation - Google Patents
Spray coating method and spray coating installation Download PDFInfo
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- EP0380386B1 EP0380386B1 EP90400119A EP90400119A EP0380386B1 EP 0380386 B1 EP0380386 B1 EP 0380386B1 EP 90400119 A EP90400119 A EP 90400119A EP 90400119 A EP90400119 A EP 90400119A EP 0380386 B1 EP0380386 B1 EP 0380386B1
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- Prior art keywords
- sputtering
- components
- head
- trajectory
- conveyor
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- 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
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0264—Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
Definitions
- the present invention relates to improvements made to spray coating installations.
- Coating installations and more particularly electrostatic coating installations are currently used comprising spraying devices which are generally in the form of a circular disc or bowl ensuring the distribution of the coating material brought to its surface, the part to be provided with the coating moving along a determined path, generally in the form of an arc of a circle around the spray head and in the plane of rotation of the latter.
- the objects to be provided with the coating in particular by electrostatic spraying using a spray head, move in the installation by being transported by a conveyor, so that they can be brought successively in front of the spray head.
- a spray head moves in the installation by being transported by a conveyor, so that they can be brought successively in front of the spray head.
- two spray heads are used and the object to be coated is brought successively in front of each of these spray heads, by means of a conveyor which has a trajectory with double inverted loops, which makes it possible to process the two successively opposite sides of the room.
- Fr-A-2 261 146 describes a coating system by electrostatic spraying using a spraying means ensuring the projection and the distribution of the coating material and in front of which move the parts to be treated which are transported by a conveyor system along a route such that a single spraying means can alternately treat the two opposite faces of a part, said route comprising: a first part bringing the first face of the pieces facing the spraying means, on one sides of this plea; a second part bringing the moving parts to, a third part ensuring the presentation of the parts by spraying, the latter then effecting the deposition of the coating material on the second face of said part.
- the parts to be treated do not undergo any rotation on themselves, but the path is partly vertical, which increases the size of the installation.
- the present invention proposes to provide a method and a device which do not have the drawbacks of the solutions according to the prior art mentioned above, and which allow a reduction in the overall height in the form of such a device.
- the invention relates to an electrostatic spray coating process which, starting from the state of the art defined by Fr-A-2 261 146 is characterized in that the path of the parts to be treated is horizontal and in that said parts undergo a rotation of 360 ° during the second part of said course.
- the invention relates to a device for implementing the method according to claim 1 comprising an enclosure or cabin in which the spraying is carried out, a spray head positioned in said enclosure, a conveyor or conveyor, on which the parts to be treated are suspended, this conveyor, the configuration of which is such that the spray head processes the first face of the part on said first part of the trajectory then the second face of said part on said third part of the trajectory, characterized in that said conveyor is horizontal and its configuration comprises a second part of the trajectory which comprises: a first and a second curve each of 90 °, oriented in the same direction, followed by a substantially rectilinear portion and parallel to said first part, this portion being located outside the spraying installation and, a third and a fourth me curves each of 90 °, orientated in the same sense and outside the sputtering installation.
- the two parts of the trajectory of the conveyor system in the spray coating zone may be straight or have a slight curvature, opposite the spraying means, this curvature being centered on this way.
- the presentation of the parts in front of the spraying means can be carried out either continuously or by timed stopping of these parts, that is to say according to a step-by-step movement.
- an installation according to the present invention is in the form of an enclosure 10 or cabin, inside which the parts are coated by spraying.
- an electrostatic spraying system is used, which comprises a head of the disc or circular bowl type, ensuring the distribution of the coating material.
- This spray head 12 is of a well known type and therefore it will not be described here.
- the spray head is mounted at the end of a support barrel 14 which can move axially by means of a conventional endless chain device 16 so as to print on the head 12 an alternative vertical sweeping movement with adjustable stroke as a function of the height of the parts to be treated.
- a support barrel 14 which can move axially by means of a conventional endless chain device 16 so as to print on the head 12 an alternative vertical sweeping movement with adjustable stroke as a function of the height of the parts to be treated.
- a support barrel 14 can move axially by means of a conventional endless chain device 16 so as to print on the head 12 an alternative vertical sweeping movement with adjustable stroke as a function of the height of the parts to be treated.
- the parts to be treated such as 18 are suspended using hooks 20, on a conveyor or conveyor 22 which ensures their travel past the spray head 12 which coats them.
- the invention proposes to treat all the faces of the parts to be treated 18 using a single spray head 12.
- the path followed by the parts that is to say the configuration of the conveyor or conveyor 20 has an original shape.
- the part of the trajectory called a detour which is constituted by the curves 26, 28, 32, 34 as well as by the part 30 which makes the parts undergo a rotation of 360 ° can have any any shape and length.
- the conveyor system comprises a part of the feed path 38 located outside of the spray enclosure 10, which can be of any shape, and which extends along the first rectilinear part 24.
- the conveying system comprises a part of the evacuation trajectory 40 which can also be of any shape and which extends the straight path portion 36 located in the processing enclosure 10.
- the improved system according to the present invention it is not necessary to use special hooks for hanging the parts and these can be hung on the mobile carriages of the conveyor systems, by means of '' one or more attachment points depending on the dimensions of the parts, which makes it possible to coat the two sides of the same part using a single spraying means, without turning the part on its attachment and suspension system.
- the device according to the invention saves space compared to the previous solutions mentioned above since the trajectory of the system for conveying the pieces inside and outside the enclosure spray to ensure the treatment of all the faces of these parts is particularly compact as clearly shown in Figure 2.
- system which is the subject of the invention can be applied to any spraying installation comprising a single spraying means, for example a single head, since it is sufficient to modify the conveyor system which ensures the movement of the parts inside the processing enclosure.
- the present invention is not limited to the various embodiments described above but that it encompasses all variants thereof as described in the claims.
- the two parts 24 36 of the trajectory of the conveyor system inside the spray coating zone can have different shapes and lengths opposite the spray head without any particular geometric definition.
- the spraying head or means can be fixed without undergoing any sweeping movement and the spraying face of the disc or bowl, when using an electrostatic spraying head, can be located either in a horizontal plane or in a plane inclined to the horizontal.
- an electrostatic spray head has been given as an example of application. This is only an example, other means can be used for spraying and spraying the coating product, for example a spray gun by compressed air or by high pressure with or without additional spraying by electrostatic field.
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- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
La présente invention a pour objet des perfectionnements apportés aux installations de revêtement par pulvérisation.The present invention relates to improvements made to spray coating installations.
On utilise à l'heure actuelle des installations de revêtement et plus particulièrement des installations de revêtement par procédé électrostatique comportant des dispositifs de pulvérisation qui se présentent généralement sous la forme d'un disque circulaire ou bol assurant la distribution de la matière de revêtement amenée à sa surface, la pièce devant être pourvue du revêtement se déplaçant suivant une trajectoire déterminée, généralement en forme d'arc de cercle autour de la tête de pulvérisation et dans le plan de rotation de cette dernière.Coating installations and more particularly electrostatic coating installations are currently used comprising spraying devices which are generally in the form of a circular disc or bowl ensuring the distribution of the coating material brought to its surface, the part to be provided with the coating moving along a determined path, generally in the form of an arc of a circle around the spray head and in the plane of rotation of the latter.
La mise en oeuvre de ces systèmes de pulvérisation présente un certain nombre de difficultés notamment lorsque l'on veut réaliser une pulvérisation sur toutes les faces de l'objet à revêtir.The implementation of these spraying systems presents a certain number of difficulties, in particular when it is desired to spray on all the faces of the object to be coated.
Généralement, dans de telles installations, les objets devant être munis du revêtement notamment par pulvérisation électro-statique à l'aide d'une tête de pulvérisation, se déplacent dans l'installation en étant transportés par un convoyeur, de façon à pouvoir être amenés successivement devant la tête de pulvérisation. Pour assurer une pulvérisation sur toute la surface de la pièce et en particulier sur les deux faces opposées de celle-ci quand elle se présente sous la forme d'un panneau plan, il est nécessaire de prévoir des trajectoires de convoyage plus ou moins compliquées.Generally, in such installations, the objects to be provided with the coating, in particular by electrostatic spraying using a spray head, move in the installation by being transported by a conveyor, so that they can be brought successively in front of the spray head. To ensure spraying over the entire surface of the part and in particular on the two opposite faces of the latter when it is in the form of a flat panel, it is necessary to provide more or less complicated conveying paths.
On a ainsi envisagé d'utiliser une trajectoire en forme de boucle, amenant successivement les deux faces de l'objet à revêtir devant une tête de pulvérisation unique. Cependant, dans ce cas, il faut prévoir un retournement de la pièce de manière à obtenir ce revêtement sur les deux faces, ce qui oblige à concevoir des systèmes de crochets rotatifs sur l'installation de convoyage.It has thus been envisaged to use a loop-shaped trajectory, successively bringing the two faces of the object to be coated in front of a single spray head. However, in this case, it is necessary to provide for a reversal of the part so as to obtain this coating on the two sides, which requires the design of rotating hook systems on the conveyor system.
Dans d'autres installations, on utilise deux têtes de pulvérisation et l'objet à revêtir est amené successivement devant chacune de ces têtes de pulvérisation, grâce à un transporteur qui présente une trajectoire à double boucles inversées, ce qui permet de traiter successivement les deux faces opposées de la pièce.In other installations, two spray heads are used and the object to be coated is brought successively in front of each of these spray heads, by means of a conveyor which has a trajectory with double inverted loops, which makes it possible to process the two successively opposite sides of the room.
Fr-A-2 261 146 décrit un système de revêtement par pulvérisation électrostatique à l'aide d'un moyen de pulvérisation assurant la projection et la distribution de la matière de revêtement et devant lequel se déplacent les pièces à traiter qui sont transportés par un système de convoyage selon un parcours tel qu'un moyen de pulvérisation unique puisse traiter alternativement les deux faces opposées d'une pièce, ledit parcours comportant : une première partie amenant la première face des pièces en regard du moyen de pulvérisation, sur l'un des côtés de ce moyen ; une seconde partie amenant les pièces en déplacement à, une troisième partie assurant la présentation des pièces au moyen de pulvérisation , ce dernier effectuant alors le dépôt de la matière de revêtement sur la seconde face de ladite pièce. Dans ce système les pièces à traiter ne subissent aucune rotation sur elles-même mais le parcours est en partie vertical, ce qui augmente l'encombrement de l'installation.Fr-A-2 261 146 describes a coating system by electrostatic spraying using a spraying means ensuring the projection and the distribution of the coating material and in front of which move the parts to be treated which are transported by a conveyor system along a route such that a single spraying means can alternately treat the two opposite faces of a part, said route comprising: a first part bringing the first face of the pieces facing the spraying means, on one sides of this plea; a second part bringing the moving parts to, a third part ensuring the presentation of the parts by spraying, the latter then effecting the deposition of the coating material on the second face of said part. In this system, the parts to be treated do not undergo any rotation on themselves, but the path is partly vertical, which increases the size of the installation.
Les installations connues sont donc peu pratiques, coûteuses, entraînent un gaspillage d'espace et elles sont difficilement utilisables pour traiter des pièces de grandes dimensions devant être suspendues en au moins deux points sur les crochets des installations de convoyage.The known installations are therefore impractical, costly, cause a waste of space and they are difficult to use for treating large parts which have to be suspended at at least two points on the hooks of the conveying installations.
En conséquence la présente invention se propose d'apporter un procédé et un dispositif ne présentant pas les inconvénients des solutions selon la technique antérieure rappelée ci-dessus, et permettant une réduction de l'encombrement en hauteur d'un tel dispositif.Consequently, the present invention proposes to provide a method and a device which do not have the drawbacks of the solutions according to the prior art mentioned above, and which allow a reduction in the overall height in the form of such a device.
En premier lieu, l'invention concerne un procédé de revêtement par pulvérisation électro-statique qui, partant de l'état de la technique définie par Fr-A-2 261 146 est caractérisé en ce que le parcours des pièces à traiter est horizontal et en ce que lesdites pièces subissent une rotation de 360° lors de la seconde partie dudit parcours.Firstly, the invention relates to an electrostatic spray coating process which, starting from the state of the art defined by Fr-A-2 261 146 is characterized in that the path of the parts to be treated is horizontal and in that said parts undergo a rotation of 360 ° during the second part of said course.
En second lieu, l'invention concerne un dispositif pour la mise en oeuvre du procédé selon la revendication 1 comportant une enceinte ou cabine dans laquelle s'effectue la pulvérisation, une tête de pulvérisation positionnée dans ladite enceinte, un transporteur ou convoyeur , sur lequel les pièces à traiter sont suspendues, ce transporteur dont la configuration est telle que la tête de pulvérisation traite la première face de la pièce sur ladite première partie de trajectoire puis la seconde face de ladite pièce sur ladite troisième partie de trajectoire, caractérisé en ce que ledit convoyeur est horizontal et sa configuration comporte une seconde partie de trajectoire qui comprend :- une première et une seconde courbes chacune de 90°, orientées dans le même sens, suivies d'une portion sensiblement rectiligne et parallèle à ladite première partie , cette portion étant située à l'extérieur de l'installation de pulvérisation et, une troisième et une quatrième courbes chacune de 90°, orientées dans le même sens, et à l'extérieur de l'installation de pulvérisation.Secondly, the invention relates to a device for implementing the method according to claim 1 comprising an enclosure or cabin in which the spraying is carried out, a spray head positioned in said enclosure, a conveyor or conveyor, on which the parts to be treated are suspended, this conveyor, the configuration of which is such that the spray head processes the first face of the part on said first part of the trajectory then the second face of said part on said third part of the trajectory, characterized in that said conveyor is horizontal and its configuration comprises a second part of the trajectory which comprises: a first and a second curve each of 90 °, oriented in the same direction, followed by a substantially rectilinear portion and parallel to said first part, this portion being located outside the spraying installation and, a third and a fourth me curves each of 90 °, orientated in the same sense and outside the sputtering installation.
Selon un mode de réalisation préféré de la présente invention, les deux parties de la trajectoire du système de convoyage dans la zone de revêtement par pulvérisation peuvent être rectilignes ou présenter une légère courbure, en regard du moyen de pulvérisation, cette courbure étant centrée sur ce moyen.According to a preferred embodiment of the present invention, the two parts of the trajectory of the conveyor system in the spray coating zone may be straight or have a slight curvature, opposite the spraying means, this curvature being centered on this way.
Selon l'invention la présentation des pièces devant le moyen de pulvérisation peut s'effectuer soit en continue soit par arrêt cadencé de ces pièces c'est à dire selon un déplacement pas à pas.According to the invention, the presentation of the parts in front of the spraying means can be carried out either continuously or by timed stopping of these parts, that is to say according to a step-by-step movement.
D'autres caractéristiques et avantages de la présente invention ressortiront de la description faite ci-après en référence aux dessins annexés qui en illustrent un mode de réalisation donné à titre d'exemple, dépourvu de tout caractère limitatif. Sur les dessins :
- La figure 1 représente une installation de revêtement électrostatique selon l'invention, en coupe axiale verticale et
- La figure 2 est une vue en plan et coupe horizontale de la figure 1 sur laquelle on a représenté la trajectoire des pièces à traiter par l'installation selon l'invention.
- FIG. 1 represents an electrostatic coating installation according to the invention, in vertical axial section and
- Figure 2 is a plan view and horizontal section of Figure 1 in which there is shown the path of the parts to be treated by the installation according to the invention.
En se référant au dessin, on voit qu'une installation selon la présente invention se présente sous la forme d'une enceinte 10 ou cabine, à l'intérieur de laquelle s'effectue le revêtement des pièces par pulvérisation. Dans cet exemple de réalisation non limitatif on utilise un système de pulvérisation électro-statique, qui comporte une tête du type disque ou bol circulaire, assurant la distribution de la matière du revêtement. Cette tête de pulvérisation 12 est de type bien connu et par conséquent elle ne sera pas décrite ici. Comme on le voit sur le dessin, la tête de pulvérisation est montée à l'extrémité d'un canon support 14 qui peut se déplacer axialement par l'intermédiaire d'un dispositif classique de chaîne sans fin 16 de façon à imprimer à la tête 12 un mouvement de balayage vertical alternatif à course réglable en fonction de la hauteur des pièces à traiter. Bien entendu un tel système peut être remplacé par tout moyen équivalent par exemple par un dispositif de verin.Referring to the drawing, it can be seen that an installation according to the present invention is in the form of an
Les pièces à traiter telles que 18 sont suspendues à l'aide de crochets 20, sur un transporteur ou convoyeur 22 qui assure leur défilement devant la tête de pulvérisation 12 qui en effectue leur revêtement.The parts to be treated such as 18 are suspended using
Ainsi qu'on l'a expliqué dans la description qui précède, l'invention se propose de traiter toutes les faces des pièces à traiter 18 à l'aide d'une tête de pulvérisation unique 12. A cet effet, le parcours suivi par les pièces, c'est à dire la configuration du transporteur ou convoyeur 20 présente une forme originale.As explained in the preceding description, the invention proposes to treat all the faces of the parts to be treated 18 using a
Comme on le voit dans cet exemple de réalisation non limitatif représenté en détail sur la figure 2, le parcours des pièces à traiter présente les parties suivantes :
- Une
première partie 24 sensiblement rectiligne, située à l'intérieur de l'enceinte depulvérisation 10 et qui amène successivement l'une des faces des pièces à traiter en regard de la tête depulvérisation 12 sur l'un des côtés de cette dernière ; - Une première courbe à 90° 26 suivie d'une seconde courbe également à 90° 28 et dans le même sens que la
courbe 26, de manière à ramener les pièces à traiter sur une partie detrajectoire 30, rectiligne, parallèle à la partie detrajectoire 24 mais située à l'extérieur de l'enceinte detraitement 10 ; - Une troisième courbe à 90° 32 suivie d'une
quatrième courbe 34 également à 90° et dans le même sens que lacourbe 32, afin de ramener les pièces à traiter sur une partie detrajectoire 36 sensiblement rectiligne et symétrique à la partie detrajectoire 24 et située comme cette dernière à l'intérieur de l'enceinte depulvérisation 10. Sur cette partie detrajectoire 36, les pièces à traiter passent devant la tête depulvérisation 12 qui projette la matière de revêtement sur la face des pièces qui n'a pas été traitée lors du passage de la pièce le long de la partie detrajectoire 24.
- A first substantially
straight portion 24, located inside thespray enclosure 10 and which successively brings one of the faces of the parts to be treated opposite thespray head 12 to one of the sides of the latter; - A first curve at 90 ° 26 followed by a second curve also at 90 ° 28 and in the same direction as
curve 26, so as to bring the parts to be treated on a part oftrajectory 30, rectilinear, parallel to the part oftrajectory 24 but located outside of thetreatment enclosure 10; - A third curve at 90 ° 32 followed by a
fourth curve 34 also at 90 ° and in the same direction ascurve 32, in order to bring the parts to be treated on a part oftrajectory 36 substantially straight and symmetrical to the part oftrajectory 24 and located like the latter inside thespray enclosure 10. On this part of thepath 36, the parts to be treated pass in front of thespray head 12 which projects the coating material onto the face of the parts which do not was not treated during the passage of the part along thetrajectory part 24.
Bien entendu et sans sortir du cadre de la présente invention, la partie de trajectoire dénommée détour qui est constituée par les courbes 26, 28, 32, 34 ainsi que par la partie 30 qui font subir au pièces une rotation de 360° peut présenter toute forme et longueur quelconque.Of course and without departing from the scope of the present invention, the part of the trajectory called a detour which is constituted by the
Comme on le voit sur le dessin, le système de convoyage comporte une partie de trajectoire d'alimentation 38 située à l'extérieur de l'enceinte de pulvérisation 10, qui peut être de forme quelconque, et qui se prolonge selon la première partie rectiligne 24. De même, le système de convoyage comporte une partie de trajectoire d'évacuation 40 qui peut être également de forme quelconque et qui prolonge la partie rectiligne de trajectoire 36 située dans l'enceinte de traitement 10.As can be seen in the drawing, the conveyor system comprises a part of the
Grâce aux perfecftionnements décrits ci-dessus, on peut traiter des pièces présentant toutes formes et dimensions, à l'aide d'une tête unique de pulvérisation 12, la forme de la trajectoire du système de convoyage auquel sont suspendues les pièces 18, permettant d'amener successivement chacune des faces de ladite pièce devant la tête de pulvérisation 12.Thanks to the improvements described above, it is possible to treat parts having all shapes and dimensions, using a
En outre, dans le système perfectionné selon la présente invention, il n'est pas nécessaire d'utiliser des crochets spéciaux pour la suspension des pièces et celles-ci peuvent être accrochées sur les chariots mobiles des systèmes de convoyage, par l'intérmédiaire d'un ou de plusieurs points d'accrochage en fonction des dimensions des pièces, ce qui permet d'effectuer des revêtements sur les deux faces d'une même pièce à l'aide d'un moyen de pulvérisation unique, sans retournement de la pièce sur son système d'accrochage et de suspension. Par ailleurs, le dispositif selon l'invention permet d'économiser de l'espace par rapport aux solutions antérieures rappelées ci-dessus étant donné que la trajectoire du système de convoyage des pièces à l'intérieur et à l'extérieur de l'enceinte de pulvérisation pour assurer le traitement de toutes les faces de ces pièces est particulièrement compact ainsi que le montre clairement la figure 2.In addition, in the improved system according to the present invention, it is not necessary to use special hooks for hanging the parts and these can be hung on the mobile carriages of the conveyor systems, by means of '' one or more attachment points depending on the dimensions of the parts, which makes it possible to coat the two sides of the same part using a single spraying means, without turning the part on its attachment and suspension system. Furthermore, the device according to the invention saves space compared to the previous solutions mentioned above since the trajectory of the system for conveying the pieces inside and outside the enclosure spray to ensure the treatment of all the faces of these parts is particularly compact as clearly shown in Figure 2.
On remarquera en outre que le système objet de l'invention peut être appliqué à toute installation de pulvérisation comportant un moyen unique de pulvérisation par exemple une seule tête, étant donné qu'il suffit simplement de modifier le système transporteur qui assure le déplacement des pièces à l'intérieur de l'enceinte de traitement.It will also be noted that the system which is the subject of the invention can be applied to any spraying installation comprising a single spraying means, for example a single head, since it is sufficient to modify the conveyor system which ensures the movement of the parts inside the processing enclosure.
Il demeure bien entendu que la présente invention n'est pas limitée aux divers exemples de réalisation décrits ci-dessus mais qu'elle en englobe toutes les variantes telles que décrites dans les revendications. C'est ainsi par exemple que les deux partie 24 36 de la trajectoire du système de convoyage à l'intérieur de la zone de revêtement par pulvérisation peuvent présenter des formes et longueurs différentes en regard de la tête de pulvérisation sans définition géométrique particulière. De même la tête ou le moyen de pulvérisation peut être fixe sans subir de mouvement de balayage et la face de pulvérisation du disque ou du bol, lorsqu'on utilise une tête de pulvérisation électrostatique, peut être situé soit dans un plan horizontal soit dans un plan incliné par rapport à l'horizontale. Enfin, dans la description qui précède on a donné comme exemple d'application une tête de pulvérisation électrostatique. Il ne s'agit là que d'un exemple, on peut en effet utiliser d'autres moyens pour la projection et la pulvérisation du produit de revêtement par exemple un pistolet à pulvérisation par air comprimé ou par haute pression avec ou sans projection additionnelle par champ électrostatique.It remains to be understood that the present invention is not limited to the various embodiments described above but that it encompasses all variants thereof as described in the claims. For example, the two
Claims (7)
- Process for coating by electrostatic sputtering with a sputtering means assuring the projection and distribution of the coating material, and before which means the components to be treated move, these components being conveyed along a path such that a single sputtering means (12) can treat alternately the two opposite faces of a component (18), said path comprising:- a first part (24) bringing the first face of the components opposite the sputtering means, on one of the sides of this means;- a second part (26, 28, 30, 32, 34) bringing the components in displacement to- a third part (36) ensuring that the components are presented to the sputtering means (12), these means then carrying out the deposition of the coating material onto the second face of said component (18), characterized in that the path of the components to be treated (18) is horizontal and in that said components undergo a rotation through 360° during the second part (26, 28, 30, 32, 34) of said path.
- Device for carrying out the method according to Claim 1, comprising an enclosure or cabin (10), in which the sputtering takes place, a sputtering head (12) positioned in said enclosure, a transporter or conveyor (22) on which the components to be treated (18) are suspended, this transporter having a configuration such that the sputtering head treats the first face of the component on said first part of the trajectory (24) and then the second face of said component on said third part (36) of the trajectory, characterized in that said conveyor (22) is horizontal and its configuration comprises a second trajectory part (26, 28, 30, 32, 34) which comprises:- first and second curves (26, 28), each of 90°, orientated in the same sense, followed by a substantially rectilinear portion (30) parallel to said first part (24), this portion (30) being situated outside the sputtering installation and,- third and fourth curves (32, 34), each of 90°, orientated in the same sense and outside the sputtering installation.
- Device according to Claim 2, characterized in that the first and third parts (24, 36) of the trajectory of the conveyor (22), in the sputtering coating zone, are rectilinear or have a slight curvature opposite the sputtering head (12), this curvature being centred on said head.
- Device according to Claim 2, characterized in that the first and third parts (24, 36) of the trajectory of the conveyor (22) are of different shapes and lengths opposite the sputtering head.
- Device according to any one of Claims 2 to 4, characterized in that the sputtering head (12) is fixed and is constituted of an electrostatic system, the disc or bowl of which is situated either in a horizontal plane or in a plane inclined to the horizontal.
- Device according to any one of Claims 2 to 5, characterized in that the presentation of the components (18) in front of the sputtering head (12) takes place either continuously, or by a rhythmical stopping of said components in a step-by-step movement.
- Device according to Claim 2, characterized in that the sputtering head (12) is given a sweeping movement, created by an endless chain system (16) or by a ram.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AT90400119T ATE98914T1 (en) | 1989-01-24 | 1990-01-16 | SPRAY COATING PROCESS AND SPRAY COATING EQUIPMENT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8900829 | 1989-01-24 | ||
FR8900829A FR2641989B1 (en) | 1989-01-24 | 1989-01-24 | IMPROVEMENTS TO SPRAY COATING FACILITIES |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0380386A2 EP0380386A2 (en) | 1990-08-01 |
EP0380386A3 EP0380386A3 (en) | 1991-05-02 |
EP0380386B1 true EP0380386B1 (en) | 1993-12-22 |
Family
ID=9378033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90400119A Expired - Lifetime EP0380386B1 (en) | 1989-01-24 | 1990-01-16 | Spray coating method and spray coating installation |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0380386B1 (en) |
AT (1) | ATE98914T1 (en) |
DE (1) | DE69005320T2 (en) |
FR (1) | FR2641989B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113019763B (en) * | 2020-12-10 | 2022-01-14 | 浙江工业大学 | Spraying robot track planning method based on grid projection algorithm |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2261146A1 (en) * | 1974-02-20 | 1975-09-12 | Saunal Pierre | Apparatus for painting both sides of articles - spaced chains carry suspended articles along U shaped path past sprays |
-
1989
- 1989-01-24 FR FR8900829A patent/FR2641989B1/en not_active Expired - Fee Related
-
1990
- 1990-01-16 DE DE69005320T patent/DE69005320T2/en not_active Expired - Fee Related
- 1990-01-16 EP EP90400119A patent/EP0380386B1/en not_active Expired - Lifetime
- 1990-01-16 AT AT90400119T patent/ATE98914T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69005320T2 (en) | 1994-07-07 |
FR2641989A1 (en) | 1990-07-27 |
EP0380386A2 (en) | 1990-08-01 |
FR2641989B1 (en) | 1992-03-13 |
ATE98914T1 (en) | 1994-01-15 |
EP0380386A3 (en) | 1991-05-02 |
DE69005320D1 (en) | 1994-02-03 |
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