ELECTROSTATIC COATING APPARATUS

摘要

A rotary atomizing head (4) is mounted on a front end side of an air motor (3). A shaping air ring (9) with air spout holes (10, 11) formed therein is provided on the rear side of the rotary atomizing head (4). The shaping air ring (9) is formed of a conductive material and is connected to ground. External electrode units (13) are provided in the periphery of the rotary atomizing head (4). A film cover (17) made of an insulating material is provided to cover an outer peripheral side of the air motor (3). A semi conductive member (21) is replaceably mounted to an adaptor (16) provided on an outer peripheral side of the shaping air ring (9). A rear end part (21B) of the semi conductive member (21) is made in contact with a front end part (19D) of the film cover (17). A front end part (21C) of the semi conductive member (21) is made in contact with the shaping air ring (9).

主权项

1. An electrostatic coating apparatus comprising:
a motor (3); a rotary atomizing head (4) that is provided on a front side of said motor (3) to be rotatable by said motor (3); an external electrode unit (13) that is provided in the periphery of said rotary atomizing head (4); and a high voltage applying unit (15) that applies a high voltage to said external electrode unit (13) to indirectly charge paint particles atomized from said rotary atomizing head (4) with the high voltage, characterized in that: an earth member (9, 32) that is provided on the rear side of said rotary atomizing head (4) to be connected to ground; a film cover (17) that is formed by an insulating material and covers an outer peripheral side of said motor (3); and a semi conductive member (21, 33) that is formed by a semi conductive material, and one end part (21B, 33B) of which is in contact with said film cover (17) and the other end part (21C, 33C) of which is in contact with said earth member (9, 32).