COATING METHOD AND COATING MACHINE

摘要

A rotary coating machine (1), comprising a rotary head (4) driven by an air motor (2), wherein the rotational speed of the rotary head (4) is, for example, 4000 to 5000 rpm. Paint is supplied to the center portion of the rotary head (4) through a paint supply pipe (5). The rotary coating machine (1) further comprises a cylindrical ultrasonic horn (6), wherein the vibrating surface (6a) of the ultrasonic horn (6) is disposed adjacent to the outer peripheral edge of the rotary head (4). The vibrating surface (6a) is formed of a sloped surface gradually increased in diameter toward the front of the ultrasonic horn. Paint released from the outer peripheral edge of the rotary head (4) receives ultrasonic vibration from the vibrating surface (6a) immediately after the release, and the paint is uniformly atomized and the atomized paint is directed forward.