APPARATUS FOR PASSING OPTICAL FIBER THROUGH TUBULAR PRODUCTS

摘要

he method of passing fibre through a tube uses on a base (11) secured to floor (11), four helical springs (18) supporting the corners of a vibrating table (14) to which a bobbin (27) is fastened coaxially (C) . The tube (1) is coiled (5) around the bobbin (27) with a protective guide (61) of low-friction plastic at the end (2) into which the fibre (7) is fed from an anti-vibration guide (54). The table (14) is vibrated by a pair of motors (21,22) in antiphase. During the table's helical movement the tube wall exerts a force on the fibre (7) in an upward and forward direction, while circumferential force pulls-in additional length.