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 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:
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 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 manoeuvring 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).