Coating nozzle and coating apparatus
AssigneeRicoh Company, Ltd.
InventorsKazuhiro Egawa, Susumu Muramatsu, Koji Sakurada
Life of this patent
Estimating the term…
Abstract
A coating nozzle includes: a nozzle hole from which a liquid paint is discharged in a liquid discharge direction; a liquid chamber communicating with the nozzle hole; a paint supply channel communicating with the liquid chamber, the paint supply channel configured to supply the liquid paint to the liquid chamber, a cleaning-liquid supply channel communicating with the liquid chamber, the cleaning-liquid supply channel configured to supply a cleaning liquid to the liquid chamber; and a switching section configured to selectively switch communication and non-communication between the paint supply channel and the liquid chamber.
Claims13
A coating nozzle comprising:
- a nozzle hole from which a liquid paint is discharged in a liquid discharge direction;
- a liquid chamber communicating with the nozzle hole;
- a paint supply channel communicating with the liquid chamber, the paint supply channel configured to supply the liquid paint to the liquid chamber;
- a cleaning-liquid supply channel communicating with the liquid chamber, the cleaning-liquid supply channel configured to supply a cleaning liquid to the liquid chamber;
- and
- a needle valve configured to selectively switch communication and non-communication between the paint supply channel and the liquid chamber,
- wherein the cleaning-liquid supply channel is configured to supply the cleaning liquid in a region between a closed tip of the needle valve and the nozzle hole, independently from the paint supply channel supplying the liquid paint to the liquid chamber, and while supplying of the liquid paint by the paint supply channel is stopped, and
- the paint supply channel is configured to supply the liquid paint to the liquid chamber while supplying of the cleaning liquid by the cleaning-liquid supply channel is stopped.
Dependencies are inferred from the claim text.