| 摘要 |
<p>A coloring nozzle is provided, by which a predetermined amount of the coloring agent per ejection can be securely ejected toward an electric wire, the ejected coloring agent can be quickly dried, and the nozzle is prevented from being blocked. The coloring nozzle 15 includes: a nozzle part 20 inside of which a coloring agent flows, a nozzle cover 21 which covers an end part 20b of the nozzle part 20, a first pipe 7 which connects a pressurized gas supplying source 16 with a space S within the nozzle cover 21, and a second pipe 8, an end of which is connected to the center of the first pipe 7 through a selector valve 6 and, an opposite end of which is connected to a cleaning liquid-receiving part 18. The selector valve 6 is controlled in such a way that only the pressurized gas from the pressurized gas supplying source 16 is allowed to pass to the nozzle part 20 when the coloring agent is ejected from the nozzle part 20, while only the nozzle-cleaning liquid from the cleaning liquid-receiving part 18 is allowed to pass to the nozzle part 20 when the coloring agent is not ejected from the nozzle part 20.</p> |
