Electrical contact system for electro-immersion car body painting trac - has electrical contact between hanger conveyor and support frame in bell-housing to trap protecting air bubble

摘要

The car brakes are fixed to flat supporting frames (39 in good electrical contact with them. The frames (3) are rapidly inter-changeable, and suspended at front and rear from a hanger conveyor (7). Electrical contact is made on immersion in the paint bath. The conveyor (7) has supporting rails (6) lowering the bodies into the bath and lifting them out, being supplied with current (9) via sliding contacts (10). The electrical contact between the conveyor (7) and frame (3) is accommodated in a bell-housing (13) fixed to the frame (3) and open to the underside, so as to trap a protecting air bubble on immersion, while a contact pin (18) protrudes upwards into the housing (13). on the suspension equipment for each body are four contact pins (18) for fixed to the bottom cross-members and protruding upwards, each with a spherical contact body at the top, and aligned with bell-housings (13) on the frame (3). The top internal plain contact surface in each housing is connected electrically via the frame to the body. As the frame (3) tilts in the suspension equipment, the contact bodies on the pins slide over the internal surfaces of the bell-housings. ADVANTAGE - No depositing of paint particles detached by friction