Taikisha Ltd.

Ransburg Industrial Finishing K.k.

Tatsuya Tanikawa

Osamu Yoshida

Keiji Manabe

Yoshiji Yokomizo

Naohiro Masuda

Masato Miura

Akihiko Arichi

Shogo Noda

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

In an electrostatic atomization coating apparatus including a nozzle head including a plurality of coating material ejection ports; a coating material chamber that is provided inside the nozzle head and to which a coating material is supplied via a coating material supply path, each of the coating material ejection ports being in communication with the coating material chamber via an individual branch coating material path; and a voltage application device that provides a potential difference between the nozzle head and an object to be coated, the coating material ejected from each of the coating material ejection ports via the coating material supply path, the coating material chamber, and the branch coating material path being brought into a charged state through application of a voltage by the voltage application device, an open/close valve device that opens and closes all of the branch coating material paths, or opens and closes a specific subset of a plurality of branch coating material paths out of all of the branch coating material paths is provided. Thus, it is possible to prevent external air from entering the nozzle head, and the coating material from leaking to the outside of the nozzle head.

Electrostatic atomization coating apparatus

Growing community of inventors

Kariya, Japan

Tatsuya Tanikawa