Abstract: A cleaning and/or filling station (10) of a subassembly for spraying a coating product mounted on a moving arm of a robot having a receiving zone (Z120) for receiving at least one sprayer belonging to the spraying subassembly and a connection device between at least one feed circuit and the sprayer in place in the receiving zone. The connection device has at least one part (131) movable between a retracted position, at a distance from the sprayer, and an active position, where the connection device enables the sprayer to be fed with cleaning product and/or coating product. The station has a flexible membrane (150) firmly attached, on the one hand, to the moveable part (131) and, on the other hand, to a fixed envelope (112) for protecting a portion of the connection device, while this membrane is deformable and suitable for following the displacements of the moveable part (131) between the retracted and active positions thereof.

Abstract: A spray nozzle for electrostatic spraying of a coating product including a needle forming a mobile shutter of a valve for controlling the spraying, which is positioned in a recess of a barrel of the nozzle. The recess defines a surface for guiding the axial translation of the needle along a longitudinal axis of the recess. The needle includes a front shaped for abutting a seat to obstruct a duct for flow of the coating product, a rear portion which interacts with means for controlling the translation of the needle and a central portion comprised between the front end and the rear portion, while a high-voltage unit included in the nozzle is capable of applying a high-voltage to the front end of the needle. A raised portion provided on the central portion of the needle, inside the recess, can increase the electric creepage distance along the central portion.

Abstract: A device for supplying at least one sprayer with a liquid coating product comprises a plurality of valves for controlling the flow of the coating product to the sprayer, these valves being aligned along a principal axis of the supply device. Each valve comprises a moving needle, a valve body, pneumatic driver for moving the needle in translation, the driver comprising a piston constrained to move in translation with the needle and slidably mounted in a guide body. The principal axis and the separation/approach axis of a valve coincide at a unique point and together define a principal plane of the valve. The separation/approach axis of each valve is contained within a cone centered on an axis perpendicular to the principal axis and belonging to the principal plane of the valve, the apex of the cone being coincident with the unique point.

Abstract: This electrostatic sprayer of coating products with external load, comprises a bowl rotatable about an axis, a turbine for rotating the bowl around this axis, and a plurality of first electrodes distributed around the axis and each capable of emitting, when the sprayer is operating and is at least partly in the direction on an object to be coated, a first ion flux from a first point. The first points are arranged in a first circle centered on and perpendicular to the axis. The sprayer comprises second electrodes each capable of emitting, when the sprayer is operating and mainly or exclusively in the direction of an edge of the bowl, a second ion flux, of the same sign as the first ion flux, from second points arranged in a second circle centered on and perpendicular to the axis, and having a different radius than the first circle.

Abstract: Rotating projector for a coating product including a spraying device having a circular spraying edge, driving means for driving the spraying device around a rotational axis, a body including primary openings arranged on a primary contour for ejecting primary air jets in a primary direction. The air jets having an axial component and an orthoradial component which are nonzero. The primary direction has a nonzero radial component, which is centrifugal relative to the rotation axis. Each primary jet extends along the rotational axis at a distance from the rotational axis than the radius of the spraying edge. The body includes secondary openings arranged on a secondary contour for ejecting the secondary air jets in a secondary direction having axial and centripetal radial components. The secondary jets hit an external surface of the spraying device. The contours coincide with a circle centered about the rotation axis.

Abstract: A device for supplying a sprayer with a liquid coating comprises a one valve having a moving needle, a valve body defining a circulation volume for the coating and a seat for supporting the needle. A pneumatic drive for translating the needle along an axis away from or towards the seat comprises a piston constrained to move with the needle and sliding within a guide body. A head and the guide body define a variable volume chamber. The head is constrained to rotate with the volume via slots on the head and corresponding protruding elements on the guide body. The guide body is screwed onto the valve body along the axis. The head includes driving reliefs for rotation of the head around the axis for screwing onto the valve body. A tool for mounting/dismounting the device comprises a maneuvering handle and an end-piece having reliefs complementary to the driving reliefs.

Abstract: A device for supplying at least one sprayer with a liquid coating product comprises at least one valve for controlling the flow of the coating product to the sprayer. The valve comprises a moveable needle, a valve body which defines a circulation volume of the coating product and a seat for supporting the needle in the closed configuration of the valve. A pneumatic driver drives the pointer in translation along an axis away from or towards the seat. The pneumatic driver comprises a piston constrained to move in translation with the needle and mounted slidably in a guide body. The pneumatic driver also comprises an end-piece penetrating into a transfer chamber. The communication line links the end-piece or the transfer chamber with a variable-volume chamber defined by the guide body and a first face of the piston.

Abstract: An installation for spraying a coating product on objects, such as motor vehicle bodies, that are moved by a conveyor (4) parallel to a conveying axis (X4) and having base (102) and mobile (104-108) portions. A multi-axis spraying robot (50) is dedicated to spraying a coating product. A multi-axis handling robot (60) is dedicated to maneuvering the mobile portion (104-106-108) of an object (100) to be coated relative to the base portion (102). Each robot is movable parallel to the conveying axis. Ventilation means provide a flow of ventilation air (F1) inside a booth (3), perpendicular to the conveying axis (X4). The spraying and handling robots (50, 60) are both slidably mounted along a same rail (8) parallel to the conveying axis (X4), and can pass each other. The rail is disposed upstream from the objects to be coated (100), in the direction of flow of the ventilation air (F1).

Abstract: An electrostatic spray device for spraying a liquid coating product, including a rotating bowl and a device for driving the bowl around a rotational axis, the bowl defining a concave surface for distributing the coating product and an edge which limits an area for the spraying the coating product. The spray device includes an electrode that charges by ionization of drops of the coating product. The electrode is arranged, in relation to the edge and along the rotational axis, opposite the spray area, between the edge and the device for driving the bowl. A second electrode mounted on a stationary body allows the creation of an electrostatic field for transporting drops. A third electrode, which is also mounted on a stationary body, is brought to an intermediate potential between those of the first and second electrodes during the operation of the spray device.