EP0565615B1 - Beschichtungsmaschine, insbesondere zur beschichtung des inneres eines körpers mit viereckigem querschnitt und grossen abmessungen wie eines schiffscontainers - Google Patents

Beschichtungsmaschine, insbesondere zur beschichtung des inneres eines körpers mit viereckigem querschnitt und grossen abmessungen wie eines schiffscontainers Download PDF

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Publication number
EP0565615B1
EP0565615B1 EP92903656A EP92903656A EP0565615B1 EP 0565615 B1 EP0565615 B1 EP 0565615B1 EP 92903656 A EP92903656 A EP 92903656A EP 92903656 A EP92903656 A EP 92903656A EP 0565615 B1 EP0565615 B1 EP 0565615B1
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EP
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Prior art keywords
support
arm
hollow body
fact
machine according
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EP92903656A
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English (en)
French (fr)
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EP0565615A1 (de
Inventor
Roland Bizolier
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REXSON PROCEDES
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REXSON PROCEDES
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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
    • B05B13/06—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 specially designed for treating the inside of hollow bodies

Definitions

  • the invention relates to an automatic painting machine, making it possible in particular to paint the interior of a hollow body of quadrangular section and of large dimensions, such as a maritime container.
  • paint should be understood in a broad sense within the scope of the invention, and include any type of primer or protective paint, lacquer, and other coatings applied by spraying.
  • an automatic machine When it comes to painting the exterior faces of a hollow body such as a shipping container, an automatic machine is used, in the form of a U facing downwards, which spans the hollow body and can be move at constant speed parallel to the axis of said hollow body.
  • the branches of the U-shaped chassis carry spray heads driven in a reciprocating movement by chains and associated drive motors; a lower support equipped with spray heads is also provided for painting the exterior of the underside of the hollow body, as well as a facial support suspended from an overhead crane for painting the exterior of the front and rear end faces of said body hollow.
  • Such an automatic machine is perfectly mastered at the present time, and includes a multitude of adjustments making it possible to correctly position the different spray heads as a function of the dimensioning of the faces to be painted and to adjust their speed of movement, said heads moving parallel to the faces to be painted and with a constant speed, so that extremely satisfactory results are obtained.
  • GB-A-1 555 472 discloses an automatic machine as defined in the preamble of claim 1.
  • a first automatic machine comprises a chassis mounted on a self-propelled carriage and supporting an articulated head equipped with spray guns.
  • the head can pivot around a horizontal rear axis, and is extended by a transverse support for pistols also articulated around a horizontal axis and capable of oscillating around another horizontal axis, perpendicular to the previous one, said other axis being brought into coincidence with the axis of the hollow body.
  • the transverse support of guns oscillates around its axis, on either side of a horizontal plane passing through the axis of the hollow body, the guns make it possible to progressively paint two opposite faces of said hollow body as and when the advancement at constant speed of the motorized trolley.
  • Such a machine is however of complex structure, and has the drawback of having a relatively large transverse sizing support mounted in cantilever.
  • the guns oscillate in a vertical plane orthogonal to the faces to be painted, so that the displacement of these guns (considered in said vertical plane) takes place in an arc of a circle, therefore along a trajectory very far from a rectilinear trajectory: it follows variations in distances (particularly sensitive at the edges of the container, during the maximum amplitude of oscillation of the transverse support), and in speeds (due to the high inertia of the transverse support) .
  • This machine also comprises a chassis mounted on a self-propelled carriage, but this chassis supports two groups of pistols which are movable transversely in a reciprocating movement, being driven by a continuous chain. Each group of guns is then actuated successively, to paint a half-face following another half-face.
  • Such a machine is advantageous insofar as the guns are driven in a rectilinear movement parallel to the face to be painted, and therefore with a constant speed.
  • a machine of this type remains very rigid in its applications: it is indeed practically impossible to adjust the stroke of the pistols, so that the machine must be modified each time the size of the container changes (this is particularly the case when two containers of different heights have to be painted successively).
  • the invention precisely aims to solve this problem, by designing a machine which is both simple and robust structure, and easy to operate.
  • the object of the invention is also to provide an automatic painting machine which allows multiple adjustments, allowing rapid adaptation to different sizes, without being to the detriment of the results obtained.
  • the object of the invention is also to design a machine capable of simultaneously painting several interior faces of the same hollow body, and even up to the four faces of this hollow body.
  • the fixed point of connection is adjustable in a direction substantially parallel to the axis of the hollow body, so as to allow adjustment of the amplitude of the oscillating movement of the movable arm.
  • the fixed connection point is carried by a slider which can be moved in a fixed slide secured to the support frame, the axial position of said slider being mechanically adjustable, for example by means of a screw-nut system controlled by a crank, so that the adjustment of the fixed connection point can thus be carried out during operation.
  • the first coupling means is a parallelogram linkage integrated in the movable arm, said linkage being connected to a rotating bearing projecting laterally from said movable arm and supporting the elongated spray head support, the associated spray head being mounted on said support elongated beyond said rotating bearing.
  • the second coupling means consists of a fork to which the spray head support is coupled, said fork carrying an end ball pivoting on a nut carried by the movable arm, so that the movement of said fork during the oscillation of said arm produces the oscillation of said support about its axis.
  • the fork grips a flattened rear end of the spray head support.
  • the nut is adjustable in position in the longitudinal direction of the movable arm, so as to allow an adjustment of the amplitude of the oscillation movement of the spray head support around its axis, and in particular the nut is movable in a slide secured to the movable arm.
  • the aforementioned machine comprises several mobile arms, each of which is associated with a respective face to be painted, each of said arms comprising respective first and second coupling means for controlling the movement of the associated spray head.
  • the carriages associated with the intermediate points of connection of the mobile arms are connected together by a common drive chain, the reciprocating movement of which is ensured by associated motorized drive means, so as to synchronize the movements of oscillation of said arms.
  • the common drive chain is arranged in a vertical plane, and the connection to said chain of the carriages associated with the mobile arms is arranged in such a way that the spray heads remain in a substantially vertical common plane during the movement of. oscillation of said movable arms.
  • the reciprocating movement of the common drive chain is communicated by one of the carriages, via a drive chain carrying a sliding finger in a groove of said carriage, said chain drive being driven by a motor whose speed can be adjusted by an associated operating member.
  • the movable sliders and the fixed slides making it possible to adjust the amplitude of the oscillation movement of the movable arms are mounted on a support frame situated in a vertical plane and integral with the support frame, so that the cranks controlling the screw systems associated nuts are all accessible behind said machine.
  • the machine comprises three or four movable arms whose successive oscillation planes are orthogonal to one another.
  • the mobile arms correspond in central symmetry, so that the associated spray heads are simultaneously oriented towards the four edges of the hollow body when said arms are in amplitude position. maximum oscillation.
  • the support frame is also advantageous for the support frame to be mounted on a self-propelled carriage which can roll on associated rails, by means of a support member which is adjustable in height and which preserves the horizontality of said support frame.
  • the support frame is mounted at the end of an arm which can be animated with a linear movement.
  • FIG. 1 makes it possible to distinguish a hollow body C of quadrangular section, here essentially rectangular, having longitudinal faces I, II, III and IV, and the main axis of which is referenced XC.
  • a hollow body C is commonly found in the field of maritime containers, that is to say that it is a large hollow body, with a bottom F (front face) of section generally ranging from 2 , 5 m by 2.5 m to 2.5 m by 3.5 m.
  • the purpose of the automatic painting machine according to the invention is to paint the interior faces of the hollow body C, and, in particular here, to simultaneously paint the three interior faces I, II, III insofar as the automatic machine comprises three movable arms.
  • the automatic painting machine may comprise from one to four movable arms so as to paint from one to four interior faces of the hollow body, simultaneously , during the relative linear movement between the automatic painting machine and the hollow body.
  • the automatic painting machine is here designed to be able to move, either on a self-propelled cart, or by being mounted on a mobile arm carried by an arrow, in a linear movement along the interior of the hollow body C whose interior faces are to be painted, said hollow body then being fixed. It goes without saying, however, that this is only a relative movement between the hollow body and the automatic painting machine, and provision may be made to organize the linear movement for the hollow body C, the automatic machine. of paint then being essentially fixed.
  • the painting of the bottom F (rear face), and of the interior of the doors (on the front face) we can generally be satisfied with traditional means actuated manually.
  • the automatic painting machine 100 comprises a support frame 101 movable inside the hollow body C along the axis XC of said hollow body.
  • the machine comprises at least one movable arm 102 mounted on the support frame 101 so as to be able to oscillate in a plane parallel to the face to be painted: the machine illustrated in FIG. 1 here comprises three mobile arms 102, the oscillation planes of which are respectively parallel to the faces I, II and III of the hollow body C.
  • FIG. 1 also makes it possible to distinguish, at the free end of each of the movable arms 102, an elongated support 110 for the spray head, on which a plurality of spray guns 112 is provided.
  • the spray head support 110 remains contained in a plane parallel to the plane of oscillation of the associated movable arm, being additionally subject, by an associated coupling means which will be described later, to maintain a fixed direction parallel to the axis XC of the hollow body during the oscillation movement of the associated movable arm.
  • the spray head supports 110 remain permanently contained in a plane which is parallel to the face to be painted, while keeping a constant direction parallel to the main axis XC of the hollow body, therefore essentially horizontal, which allows a regular application of paint on the respective side to be painted.
  • each spray head support 110 can rotate around its axis XS which is, remember, permanently kept parallel to the main axis XC of the body hollow C. By rotating the spray head support 110 around its axis XS, it is thus possible to modify the orientation of the outlet nozzles of the spray guns 112.
  • the associated coupling means which will be described in more detail with reference in FIG. 4, forces each spray head support 110 to oscillate continuously around its axis XS during the oscillation movement of the associated mobile arm 102, at an angle ⁇ essentially proportional to the angle of oscillation of said mobile arm.
  • the continuous and controlled orientation of the spray guns 112 associated with each movable arm 102 makes it possible to correctly paint the edges associated with each interior face with the same spray nozzles, which makes it possible to obtain a regular application speed of painting, the regularity of the application being already ensured, for the edges, by the fixed direction of each spray head support (parallel to the main axis XC of the hollow body C), and, for the faces to paint, by moving each spray head support in a plane that remains parallel to the face to be painted.
  • the application speed is moreover made practically constant by virtue of a particular organization of the oscillation movement of each movable arm 102, thanks to connecting means ensuring that the free end of each movable arm describes an essentially flat arc , result which one could not obtain with a simple movement of oscillation around a fixed axis, because the free end of each arm would then describe an arc of circle, such a trajectory not making it possible to obtain a speed appreciably constant.
  • FIG. 2 The general principle of the articulation of a mobile arm 102 is illustrated in FIG. 2: the mobile arm 102 is articulated on the one hand on an intermediate connection point 103 secured to a carriage driven by associated motor means according to a movement rectilinear, alternating and uniform (the associated carriage 105 is shown in FIG. 6), and on the other hand, at the level of a slide provided near its rear end 108, on a fixed connection point 104 secured to the support frame 101 (FIG. 3 makes it possible to better distinguish the fixed connection point 104 which passes through a slide 107 secured to the movable arm 102, at the rear end 108 of the latter).
  • the rectilinear, alternating and uniform movement of the intermediate connection point 103 subjects the mobile arm 102 to oscillate at an angle ⁇ on either side of a mean axis XB which is parallel to the direction of movement of the automatic machine of paint 100, that is to say parallel to the main axis XC of the hollow body concerned.
  • the free end 109 of the movable arm 102 describes a path T which is essentially flat, which makes it possible to guarantee a substantially constant speed.
  • the arc T of trajectory is in fact a portion of Nicomedes conchoid, and this trajectory is considerably flattened compared to an arc of circle which would be centered on the fixed point of connection 104 if the latter was rigidly secured to the support frame 101 of the machine.
  • Such an arrangement is very advantageous insofar as it makes it possible to ensure a substantially constant speed for the displacement of the free end of each movable arm 102, but it is also very advantageous insofar as it makes it possible to organize, in a simple way, an adjustment of the amplitude of the oscillation movement of the mobile arm 102. Indeed, if the fixed connection point 104 is moved forward, that is to say by approaching the segment described by the intermediate connection point 103, along the axis XB which is essentially parallel to the axis XC of the hollow body, it is easy to see that it is thus possible to increase the amplitude of the oscillation movement of the mobile arm 102.
  • the elongated head support of spray 110 which carries the spray guns 112 retains a fixed direction parallel to the axis XB, that is to say to the main axis XC of the hollow body.
  • FIG. 3 illustrates a simple embodiment of the means for adjusting the amplitude of the oscillation movement of a movable arm 102.
  • the fixed connection point 104 which is presented here in the form of a pin passing through a slide 107 of the movable arm 102, is carried by a slider 116 which is movable in a fixed slide 117 secured to the support frame 101, this fixed slide 117 being arranged along the aforementioned axis XB associated with the mobile arm 102.
  • the movable cursor 116 constitutes the nut of a screw-nut system, the screw of which is constituted by a threaded rod 118 with an axis parallel to the direction of the fixed slide 117, the axial position of the cursor 116 then being adjustable by means of this screw-nut system 117, 118 by means of a crank 119 formed behind a support plate 151 which is fixed to the rear end of the fixed slide 117.
  • the fixed connection point 104 can thus be adjusted with great flexibility between two extreme positions which correspond to those of points A and B in FIG.
  • the mobile arm 102 slides permanently back and forth (as shown by arrow 202 in Figure 3) throughout the oscillating movement of this movable arm.
  • the adjustment of the axial position of the cursor 116 can be carried out during operation, independently and separately by an appropriate displacement of the fixed connection point 104.
  • the automatic painting machine comprises several movable arms 102, for example three movable arms, it is advantageous to provide that the movable sliders 116 and the fixed slides 117 making it possible to adjust the amplitude of the oscillation movement of each of the movable arms 102 are mounted on a support frame 146, as illustrated in FIG. 9.
  • the support frame 146 is preferably arranged in a vertical plane, and it is integral with the support frame 101.
  • this support frame 146 contribute to the overall rigidity, in thus preserving the constant direction of the fixed slides 117, but it also makes it possible to obtain easy accessibility, behind the machine, to all the cranks 119 controlling the associated screw-nut systems.
  • the operator can very quickly correct the stroke of any of the spray gun groups by acting appropriately on the associated adjustment crank 119, which makes it possible to adapt with great flexibility and high precision in dimensioning the respective face to be painted.
  • Such an arrangement makes possible an easy and rapid adjustment when going from one hollow body to another whose quadrangular section is different.
  • the operator has indeed all the stroke R (illustrated in FIG. 2) for adjusting the stroke of each group of spray guns, by acting appropriately on the associated adjustment crank 119.
  • FIG. 4 illustrates the free end 109 of a mobile arm 102, with a first coupling means 114 provided between the mobile arm 102 and the elongated spray head support 110, forcing the axis XS of said support to keep a direction fixed parallel to the axis XC of the hollow body during the oscillation movement of said mobile arm, and a second coupling means 115 provided between the mobile arm 102 and the elongated spray head support 110, forcing said support to oscillate continuously around of its axis XS during the oscillation movement of said movable arm, at an angle ⁇ essentially proportional to the angle of oscillation ⁇ of said arm.
  • the first coupling means 114 is preferably produced in the form of a parallelogram linkage integrated in the free end 109 of the movable arm 102.
  • a set of two links 120 and 121 can be distinguished here, the ends of which are articulated on associated wheels 122 and 123, said links remaining parallel to one another whatever their respective axial displacements.
  • the rotary bearing 124 is then provided at the level of the wheel 123, to rotate around an axis XP coaxial with the latter, integrally with the parallelogram linkage constituted by the members 120, 121, 122, 123 thus arranged in the form a pantograph arm.
  • the linkage is naturally integrated into the free end 109 of the movable arm 102, and the rotary bearing 124 projects laterally from said movable arm to support the elongated spray head support 110, the associated spray head 111 being mounted on said elongate support at beyond said rotary bearing.
  • the spray head 111 here carries two spray guns 112, of which there are the associated spray nozzles 113.
  • the elongated spray head support 110 is rotatably mounted on the bearing 124 while preserving the direction of its axis XS. Behind this bearing 124, the elongated spray head support 110 is coupled in rotation to a fork 125 carrying an end ball joint 128 which pivots on a nut 129 carried by the movable arm 102. This coupling in rotation is here organized by providing a flattened rear end 130 of the spray head support 110, such that the flat facets 125 remain in contact with the flat internal faces of the two branches 126 and 127 of the fork 125.
  • the spray guns 112 are thus oriented progressively and continuously throughout the oscillation of the movable arm 102 which carries them, which makes it possible to guarantee the regularity of the application while preserving the constancy of the speed.
  • the nut 129 supporting the ball joint 128 at the end of the fork 126 is adjustable in position, by being movable in a slide 132, 133 secured to the movable arm 102.
  • the distance d can then be adjusted between the axis XP of the rotary bearing 124 and the central axis XF of the fork 125 (the axis XF passing through the center of the ball joint the axis 128 of this fork), by moving the position of the nut 129 in its slide 132, 133: with a small distance d there will naturally be a small angle of deflection (cone 131) for the fork 125, and therefore an angle of oscillation ⁇ weak for the elongated spray head support 110, and vice versa.
  • the length of the slide 132, 133 will be chosen such that there is a distance d allowing oscillation angles ⁇ adapted to the dimensions commonly encountered for the faces to be painted.
  • each of said arms will then comprise first 114 and second 115 respective coupling means for controlling the movement of the associated spray head 111.
  • first 114 and second 115 respective coupling means for controlling the movement of the associated spray head 111.
  • FIG. 6 a set of three carriages 105, externally carrying a pin 103 which constitutes the aforementioned intermediate point of connection of each of the three movable arms 102 of the automatic painting machine 100 illustrated in Figure 1.
  • the carriages are fixed on a common drive chain 134, which ensures synchronization of the oscillation movement of the three movable arms 102.
  • the common drive chain 134 is preferably arranged in a vertical plane, passing around four pulleys 135 arranged in a square.
  • the reciprocating movement of the common drive chain 134 shown diagrammatically by the arrow 201, is provided by motorized drive means 106 which will be described below.
  • One of the carriages 105 here the carriage associated with the movable arm which oscillates in a horizontal plane, carries a slide 136 having a groove 139, here of vertical orientation, through which a finger 137 secured to a drive chain 138 passes.
  • This drive chain 138 passes over two pulleys 140 whose axes are in a common horizontal plane, and the finger 137 drives the associated carriage 105 as illustrated in FIG. 7: when the carriage 105 moves from right to left, the finger 137 is in the upper part of the groove 139 of the slide 136, then this finger slides at the end of the race to come into its low position which corresponds to the return of the carriage 105 for a movement going from the left to the right.
  • Such a drive mode is commonly used, because it makes it possible to provide simple alternative movement at a constant speed of a carriage associated with spraying means.
  • the drive chain 138 synchronously drives all of these carriages, which makes it possible to organize the movements of oscillation of the mobile arms 102 of the machine.
  • a drive chain 142 passes over a pulley 141 coaxial with the pulley 140 of the drive chain 138, and over a pulley 143 mounted on the output shaft of a motor-variator group 144 which ensures the continuous unidirectional movement of said drive chain, and the reciprocating movement of the common drive chain 134.
  • the speed of the motor 144 can be modified by an associated operating member 145, which makes it possible to adjust, simultaneously for all the spray guns, the running speed, and this in a perfectly synchronized manner. It is naturally appropriate to position each of the carriages 105 properly on the common drive chain 134 so as to avoid that the spray guns of two adjacent movable arms are at a given time in the same application area. We then manage to fix each carriage 105 in such a way that each of them is simultaneously in an extreme position of oscillation on the same side of the concerned middle axis: in this case, the two corresponding carriages 105 the vertical branches of the common drive chain 134 correspond in central symmetry.
  • FIG. 8 which illustrates the kinematic chain of this assembly, makes it possible to clearly see the strokes c of the two arms 102 associated with two opposite vertical faces, and the stroke c ', equal or different from the stroke c, for the movable arm 102 associated with the horizontal face to be painted. It can thus be seen that the successive planes of oscillation of the movable arms remain orthogonal to one another. This naturally remains true when the machine has four movable arms 102, as illustrated in FIGS. 10 and 11.
  • FIG. 10 there is shown a machine with four movable arms 102, that is to say that this machine is capable of simultaneously painting the four faces I, II, III, IV of a hollow body C, as and as the relative slow linear displacement between the machine and the hollow body.
  • the position illustrated in FIG. 10 corresponds to a position of maximum amplitude of oscillation of the four mobile arms 102, a position in which the associated elongated spray head supports have pivoted by a maximum angle ⁇ so that the spray heads 111 direct the associated nozzles towards the edges a12, a14, a34, or a23, of the hollow body C.
  • the four spray heads 111 are permanently in a common vertical plane, as is better visible on the view from above in Figure 11, and these spray heads are correspond in central symmetry in this common vertical plane. It is naturally necessary to ensure that the central axis of the support frame 101, which corresponds to the axis of the support frame 146 of FIG. 9 and of the common drive chain 134 of FIG. 6, is coincident with the axis XC of the hollow body C. To this end, the support frame 101 must be able to be adjusted in height, so as to organize its initial setting on the main axis XC of the considered hollow body.
  • the machine 100 illustrated in FIG. 1 comprises a support frame 101 provided with three movable arms 102, which pass through associated slots 152 formed in the front face 153 of this support frame 101.
  • the support frame 101 is disposed on a member support 148 adjustable in height, by means of four jacks, or even by means of an associated X-linkage, retaining the horizontality of said support frame.
  • This support frame 101 and its support member 148 are mounted on a self-propelled carriage 147 movable in two orthogonal directions.
  • the self-propelled carriage 147 carries rolling means 154 allowing said carriage to move on associated rails 155 carried by a frame 156, this displacement being able to be made parallel to the axis XC of the hollow body C, as shown by arrow 202.
  • the chassis 156 comprises meanwhile rolling means 157 allowing movement on transverse rails 158, as shown diagrammatically by the arrow 203, with an end-of-travel stop 159.
  • rolling means 157 allowing movement on transverse rails 158, as shown diagrammatically by the arrow 203, with an end-of-travel stop 159.
  • the extension provided by the protruding part of the movable arms 102 with their elongated spray head support 110 may be sufficient to prevent the support frame 101 from itself penetrating inside the hollow body. It is however naturally possible to organize a slow linear movement of the support frame 101 inside the hollow body C, for example by providing a bearing, either on the very bottom of said hollow body, or on rails 155 'extending the rails 155 above, as shown in Figure 12.
  • the support frame 101 is mounted at the end of an arm 149, arranged to be driven by a linear movement shown diagrammatically by the arrow 202, said arm being integral with a mobile structure 150 comprising the associated motorized drive means and possibly also height adjustment means: in fact, it will be necessary to provide such height adjustment means for the movable arm 149 so as to be able to perform a precise setting of the machine on the axis XC of the hollow body C.
  • stop means preventing excessive advancement of the machine inside the hollow body, which could lead to dangerous contact between the front end of the spray head supports and the bottom of the body.
  • hollow We can for example provide a stop 160 formed at the end of a stop support 161 secured to the self-propelled carriage 147, as can be seen in FIG. 1; in the case of mounting on a movable arm 149 as illustrated in FIG. 13, a similar stop system will naturally be provided integrally with said arm.
  • the automatic painting machine which has just been described therefore allows regular application on the faces and in the corners of a hollow body of quadrangular section, with in addition an equally regular application speed.
  • the synchronization of the mobile arms when the machine comprises more than two mobile arms, makes it possible to simultaneously adjust the quantities of paint deposited on all the faces concerned when the oscillation speed of the mobile arms is modified.
  • Such a machine thus makes it possible to find the same operating conditions and the same performance as for painting the external faces.
  • the structure of this machine is relatively simple and robust, and it avoids a relatively large cantilever mounting, insofar as only the movable arms extend forward, the main mass of the machine being concentrated at level of its support frame.
  • the adjustment of the stroke of the spray guns makes it possible to adapt very quickly and very easily to different sizes for successive hollow bodies to be painted.
  • the spray guns arranged at the end of the movable arms, are always distant from the mechanical parts associated with the drive of the movable arms, which is advantageous in terms of maintenance, but also insofar as it is possible to effectively protect the motorized drive members against any projection of paint during use.
  • the invention is not limited to the embodiments which have just been described, but on the contrary encompasses any variant incorporating, with equivalent means, the characteristics which have just been described, in accordance with the claims.
  • the field of application of the invention also includes the possibility of using each movable arm independently for other applications, such as painting parts from the outside, since it then suffices to reverse the orientation. spray guns carried by this arm.

Claims (18)

  1. Automatische Beschichtungsmaschine (100) zum Beschichten eines Hohlkörpers, der wenigstens eine zu beschichtende Fläche zeigt, die im allgemeinen eben ist, welche sich entlang einer Achse des Hohlkörpers erstreckt, insbesondere zum Beschichten des Inneren eines Hohlkörpers mit viereckigem Querschnitt und mit großen Abmessungen, so wie eines Seecontainers, mit:
    - einem Trägergestell (101) zum Einbringen in das Innere des Hohlkörpers (C) und Einrichtungen zum Hervorrufen einer relativen Verlagerung von Gestell und Hohlkörper entlang der Achse (XC) des Hohlkörpers; und
    - wenigstens einem Sprühkopfträger, der einen Sprühkopf trägt und über eine Gelenkverbindung mit einem Wagen (105) verbunden ist, der durch zugeordnete Motoreinrichtungen (106) angetrieben wird,
    dadurch gekennzeichnet, daß sie aufweist:
    - wenigstens einen beweglichen Arm (102), der auf dem Trägergestell (101) derart angeordnet ist, daß er in einer Ebene hin- und herschwingen kann, die parallel zu der zu beschichtenden Fläche (I, II, III, IV) ist, wenn sich das Trägergestell im Inneren des Hohlkörpers befindet, wobei der bewegliche Arm einerseits um einen mittleren Verbindungspunkt (103), der fest an dem Wagen (105) liegt, wobei der letztere zu einer geradlinigen, wechselweisen und gleichförmigen Bewegung angetrieben wird, und andererseits, auf der Höhe einer Gleitschiene (107), die benachbart seinem hinteren Ende (108) vorgesehen ist, um einen festen Verbindungspunkt (104), der auf dem Trägergestell liegt, derart schwenkbar ist, daß sein freies Ende (109) einen im wesentlichen glatten Bogen (T) mit einer im wesentlichen konstanten Geschwindigkeit beschreibt;
    - wobei der Träger für den Sprühkopf (110) langgestreckt ist und auf der Höhe des freien Endes (109) des beweglichen Armes (102) angebracht ist, wobei der Träger auf dem beweglichen Arm (102) schwenkbar angebracht ist, um in einer Ebene parallel zur Hin- und Herschwing-Ebene des Armes hin- und herzuschwingen;
    - eine erste Kupplungseinrichtung (114), die zwischen dem beweglichen Arm (102) und dem verlängerten Träger für den Sprühkopf (110) vorgesehen ist, welche die Achse (XS) des Trägers dazu zwingt, eine feste Richtung einzuhalten, die parallel zu der Achse (XC) des Hohlkörpers ist, während einer Hin- und Herschwingbewegung des beweglichen Armes;
    - eine zweite Kupplungseinrichtung (115), die zwischen dem beweglichen Arm (102) und dem langgestreckten Träger für den Sprühkopf (110) vorgesehen ist, welche den Träger zwingt, kontinuierlich um seine Achse (XS) während der Hin- und Herschwingbewegung des beweglichen Armes hin- und herzuschwingen, um einen Winkel (β), der im wesentlichen proportional zum Hin- und Herschwingwinkel (α) des Armes ist.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß der feste Verbindungspunkt (104) in einer Richtung einstellbar ist, die im wesentlichen parallel zu der Achse (XC) des Hohlkörpers ist, derart, daß eine Einstellung der Amplitude der Hin- und Herschwingbewegung des beweglichen Armes (102) möglich ist.
  3. Maschine nach Anspruch 2, dadurch gekennzeichnet, daß der feste Verbindungspunkt (104) von einem Läufer (116) getragen ist, der in einer festen Laufschiene (117) verlagerbar ist, welche einstückig mit dem Trägergestell (101) ist, wobei die axiale Position des Läufers auf mechanische Weise einstellbar ist.
  4. Maschine nach Anspruch 3, dadurch gekennzeichnet, daß die axiale Position des Läufers (116) mittels eines Schrauben-Mutter-Systems (116, 118) einstellbar ist, gesteuert durch eine Kurbel (119), derart, daß die Einstellung des festen Verbindungspunktes (104) somit während des Betriebes bewirkt werden kann.
  5. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die erste Kopplungseinrichtung (114) ein Parallelogramm-Gestänge (120, 121, 122, 123) ist, das in den beweglichen Arm (102) integriert ist, wobei das Gestänge mit einem Drehlager (124) verbunden ist, das seitlich von dem beweglichen Arm hervorsteht und den langgestreckten Träger für den Sprühkopf (110) trägt, wobei der zugeordnete Sprühkopf (111) auf dem langgestreckten Träger über das Drehlager hinaus angebracht ist.
  6. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Kopplungseinrichtung (115) durch eine Gabel (125) gebildet ist, an der der Träger für den Sprühkopf angekoppelt ist, wobei die Gabel ein Endgelenk (128) trägt, die auf einer Nuß (129) schwenkbar angebracht ist, welche von dem beweglichen Arm (102) getragen ist, derart, daß die Bewegung der Gabel während der Hin- und Herschwingbewegung des Armes die Hin- und Herschwingbewegung des Trägers um seine Achse (XS) erzeugt.
  7. Maschine nach Anspruch 6, dadurch gekennzeichnet, daß die Gabel (125) ein abgeflachtes hinteres Ende (130) des Trägers für den Sprühkopf (110) einspannt.
  8. Maschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Nuß (129) in ihrer Position entlang der Längsrichtung des beweglichen Armes (102) einstellbar ist, derart, daß eine Einstellung der Amplitude der Hin- und Herschwingbewegung des Trägers für den Sprühkopf (110) um seine Achse (XS) möglich ist.
  9. Maschine nach Anspruch 8, dadurch gekennzeichnet, daß die Nuss (129) in einer Gleitschiene (132, 133) verlagerbar ist, die einstückig mit dem beweglichen Arm (102) ausgebildet ist.
  10. Maschine nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß sie mehrere bewegliche Arme (102) aufweist, wobei jeder einer entsprechenden zu beschichtenden Fläche (I, II, III, IV) zugeordnet ist, wobei jeder der Arme eine erste (114) und eine zweite (115) Kupplungseinrichtung aufweist, um jeweils die Bewegung des zugeordneten Sprühkopfes (111) zu steuern.
  11. Maschine nach Anspruch 10, dadurch gekennzeichnet, daß die Wagen (105) die den zwischengeschalteten Verbindungspunkten (103) der beweglichen Arme (102) zugeordnet sind, untereinander durch eine gemeinsame Antriebskette (134) verbunden sind, deren wechselweise Bewegung durch zugeordnete motorisierte Antriebseinrichtungen (106, 136, 137) gewährleistet wird, um die Hin- und Herschwingbewegungen der Arme zu synchronisieren.
  12. Maschine nach Anspruch 11, dadurch gekennzeichnet, daß die gemeinsame Antriebskette (134) in einer vertikalen Ebene angeordnet ist und die Verbindung zur Kette zur Wagen (105), die den beweglichen Armen (106) zugeordnet sind, derart vorgenommen ist, daß die Sprühköpfe (111) in einer gemeinsamen Ebene bleiben, die im wesentlichen vertikal während der Hin- und Herschwingbewegung der beweglichen Arme ist.
  13. Maschine nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die wechselweise Bewegung der gemeinsamen Antriebskette (134) durch einen der Wagen (105) vermittelt wird, durch Zwischenschaltung einer Triebkette (138), die einen Finger (137) trägt, welcher in einer Rille (139) des Wagens gleitet, wobei die Triebkette durch einen Motor (144) angetrieben wird, dessen Geschwindigkeit durch ein zugeordnetes Handhabungselement (145) eingestellt werden kann.
  14. Maschine nach Anspruch 4 und einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, daß die bewegliche Markierungen (116) und die festen Gleitschienen (117), die es erlauben, die Amplitude der Hin- und Herschwingbewegung der beweglichen Arme (102) einzustellen, auf einem Trägerrahmen (146) angeordnet sind, der in einer Vertikalebene liegt und mit dem Trägergestell (101) fest verbunden ist, derart, daß die Kurbeln (119), die die zugeordneten Mutter-Schrauben-Systeme (116, 118) steuern, alle von hinter der Maschine zugänglich sind.
  15. Maschine nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, daß sie drei oder vier bewegliche Arme (102) aufweist, deren aufeinanderfolgende Ebenen der Hin- und Herschwingbewegung untereinander orthogonal sind.
  16. Maschine nach Anspruch 15, die vier bewegliche Arme aufweist, dadurch gekennzeichnet, daß sich die beweglichen Arme (102) in einer Mittensymmetrie entsprechen, derart, daß die zugeordneten Sprühköpfe (111) gleichzeitig gegen die vier Ecken des Hohlkörpers (a₁₂, a₂₃, a₃₄, a₁₄) gerichtet sind, wenn die Arme in der Position für die maximale Amplitude der Hin- und Herschwingbewegung sind.
  17. Maschine nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das Trägergestell (101) auf einem selbstfahrenden Wagen (147) angebracht ist, der auf zugeordneten Schienen rollen kann, durch Zwischenschaltung eines Trägerorgans (148), das in der Höhe einstellbar ist und das Horizontalliegen des Trägergestells aufrecht erhält.
  18. Maschine nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das Trägergestell (101) am Ende eines Armes (149) angebracht ist, der zu einer linearen Bewegung angeregt werden kann.
EP92903656A 1991-01-03 1992-01-02 Beschichtungsmaschine, insbesondere zur beschichtung des inneres eines körpers mit viereckigem querschnitt und grossen abmessungen wie eines schiffscontainers Expired - Lifetime EP0565615B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9100037 1991-01-03
FR9100037A FR2671293B1 (fr) 1991-01-03 1991-01-03 Machine automatique de peinture, notamment pour peindre l'interieur d'un corps creux de section quadrangulaire et de grandes dimensions tel qu'un conteneur maritime.
PCT/FR1992/000002 WO1992011951A1 (fr) 1991-01-03 1992-01-02 Machine automatique de peinture, notamment pour peindre l'interieur d'un corps creux de section quadrangulaire et de grandes dimensions tel qu'un conteneur maritime

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Publication Number Publication Date
EP0565615A1 EP0565615A1 (de) 1993-10-20
EP0565615B1 true EP0565615B1 (de) 1995-05-03

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EP92903656A Expired - Lifetime EP0565615B1 (de) 1991-01-03 1992-01-02 Beschichtungsmaschine, insbesondere zur beschichtung des inneres eines körpers mit viereckigem querschnitt und grossen abmessungen wie eines schiffscontainers

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EP (1) EP0565615B1 (de)
AT (1) ATE121973T1 (de)
DE (1) DE69202331D1 (de)
FR (1) FR2671293B1 (de)
WO (1) WO1992011951A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20002822U1 (de) * 2000-02-17 2000-04-20 Rogg Philipp Auftragvorrichtung, insbesondere für Holzschutzlasuren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1555472A (en) * 1976-08-19 1979-11-14 Air Ind Developments Ltd Spray system for containers with particular reference to ibside paiting
DE2637956A1 (de) * 1976-08-24 1978-03-02 Ytong Ag Verfahren und vorrichtung zur bespruehung von kasteninnenflaechen mit gleichmaessigen schichtdicken
GB1555959A (en) * 1977-03-17 1979-11-14 Air Ind Developments Ltd Spray painting apparatus

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FR2671293A1 (fr) 1992-07-10
ATE121973T1 (de) 1995-05-15
FR2671293B1 (fr) 1993-04-30
DE69202331D1 (de) 1995-06-08
WO1992011951A1 (fr) 1992-07-23
EP0565615A1 (de) 1993-10-20

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