Other

Abb Patent Gmbh

Gert Stauch

Gunter Boerner

Josef Wittmann

Michio Mitsui

Kimiyoshi Nagai

Hidetoshi Yamabe

Bjoern Mattias

Uwe Goerges

The invention relates to an ultrasonic standing-wave atomizer arrangement for producing a paint spray mist for painting a workpiece, with a sonotrode, with a component arranged lying opposite the sonotrode, a standing ultrasonic field being formed in the intermediate space between the at least one sonotrode and the component in the case of operation. At least one nozzle-shaped paint feeding device is arranged perpendicularly in relation to the center axis of the sonotrode and introduces the paint into the intermediate space for the atomizing process at least one paint discharge point, the component arranged lying opposite the sonotrode being a coaxially aligned reflector, and the end face of the latter, facing the sonotrode, having a step-shaped recessed formation and the depth of said recessed formation corresponding to a multiple of half the wavelength &#x3bb; of the sonic vibrations in air that are produced in the sonotrode.

Ultrasonic standing-wave atomizer arrangement

A rotary atomizing head type coating machine which is arranged to prevent occurrence of spark discharges, including a rotational shaft (,) which is formed of an insulating material, a rotary atomizing head (,) which is likewise formed of an insulating material and mounted on a fore end portion of the rotational shaft (,). An on-head semi-conductive coat film (,) is formed on outer peripheral surfaces of the rotary atomizing head (,). On the other hand, a first arcuate coat film (,) is formed on a first limiter ring (,) which is provided on a motor body (,), and a second arcuate coat film (,) is formed on a second limiter ring (,) which is provided on the rotary atomizing head (,). Further, a power supply semi-conductive coat film (,) is formed on and around outer peripheral surfaces of the rotational shaft (,) between the arcuate coat films (,) and (,). A high voltage which is applied to the air motor,is supplied to paint releasing edges (,E) of the rotary atomizing head (,) through the first arcuate coat film (,), power supply semi-conductive coat film (,), second arcuate coat film (,) and on-head semi-conductive coat film (,).

Rotary atomizing head type coating device

Growing community of inventors

Munich, Georgia

Gert Stauch