| 摘要 |
The present invention relates to a coating cup which functions to join together a plurality of optical fibres (3) to form a fibre ribbon-cable while, at the same time, coating the cable with two protective layers of coating material. The coating cup includes a body (1) provided with two diametrically opposing inlet channels for coating material, a guide nozzle (8) inserted in the body and having a truncated, conical inlet bore, and two spray nozzles (23, 30) inserted in the body. The second spray nozzle (30) has a truncated, conical recess and distribution channels which open thereinto. According to the invention, the truncated, conical inlet bore (10) of the guide nozzle (8) merges with a guide bore (11) of elongated cross-section. The first spray nozzle (23) has a truncated, conical recess (25) which merges with a nozzle bore (26) of elongated section, this bore merging with a conical, outwardly projecting part (27) in the nozzle end-wall (28). The first spray nozzle is arranged in relation to the guide nozzle (8) so as to form a first coating-material gap (35) between the guide nozzle (8) and the first spray nozzle (23). The truncated, conical recess (32) in the second spray nozzle (30) merges with a nozzle bore (33) of elongated cross-section, and the second spray nozzle (30) is arranged in relation to the first spray nozzle (23) so that a second coating-material gap (36) is formed between the two spray nozzles (23, 30). |
