Ransburg Industrial Finishing K.k.

Toyota Jidosha Kabushiki Kaisha

Trinity Industrial Corporation

Naohiro Masuda

Osamu Yoshida

Yoshiji Yokomizo

Takeshi Watanabe

Shinji Tani

Kazuki Tanaka

Akira Numasato

Takahito Kondo

Yuki Murai

Atsushi Tomita

Tatsuya Tanikawa

Akihiko Arichi

Masato Miura

Yuki Hirai

To improve actual coating efficiency, the present invention has a coating robot provided with a coating unit configured by a plurality of rotary atomizing type electrostatic coating machines horizontally arranged, and a coating control apparatus that controls the coating unit and the coating robot. A diameter of each of bells is 50 mm or less. The coating material discharge amount of each rotary atomizing type electrostatic coating machine is 400 cc/min or less. A coating distance between each bell and a surface to be coated of a workpiece is controlled between 50 mm to 150 mm. The coating material discharge amounts of the plurality of electrostatic coating machines are controlled for the respective coating machines. The control of the coating material discharge amounts includes a pause of coating material discharge.

Coating apparatus and coating method

A coating device includes a rotary head, a power supply part that applies a voltage to the rotary head, and a control part that controls the power supply part. The rotary head is configured so that a coating material is electrostatically atomized. The control part is configured so as to calculate a discharge current based on a total current flowing from the power supply part to the rotary head and a leak current, and control the power supply part based on the discharge current.

Coating device

PROBLEM TO BE SOLVED: To evolve a spark discharge preventing effect of an electrostatic coating device. SOLUTION: One coating robot has an arm equipped with a plurality of electrostatic coating devicesclose to each other and the plurality of the electrostatic coating devicesis connected in parallel with each other to one high-voltage generator. A hollow rotary shaftdriven by an air motoris disposed with nine plate-shaped resistorsarranged circumferentially at intervals. The nine plate-shaped resistorsare connected in series and a high voltage is applied via the resistorsto a rotary atomization head. The rotary atomization headis made of a semiconductive resin.

Electrostatic coating device and system

Growing community of inventors

Yokohama, Japan

Naohiro Masuda