A rotary type electrostatic spray painting device.

摘要

A rotary type electrostatic spray painting device comprising a rotary shaft (8) and a spray head (9) fixed onto the front end of the rotary shaft. Paint is fed onto the cup-shaped inner wall of the spray head. The rotary shaft, is supported by a single thrust air bearing (44), a pair of radial bearings (22;23), and a non-contact type rotary shaft supporting device (72) having a permanent magnet. The permanent magnet (78) is arranged near the circumferential outer wall of the rotary shaft for supporting the rotary shaft by the attracting force of the permanent magnet. An electrode (66), continuously contacting the rear end of the rotary shaft, is provided. A negative high voltage is applied to the housing (2;3) of the paint device. In addition, the negative high voltage is also applied to the spray head via the electrode (66) and the rotary shaft (8).