| 摘要 |
PURPOSE:To enable forcible correction of deformed groove and to improve working efficiency by forming a circumferential step on the contact face of plural rollers and so structuring that the circumferential step fits automatically in the hollow groove of a spacer cable. CONSTITUTION:A resin wire rod that constitutes an optical fiber spacer cable 1 is extruded while rotating a mouth piece 22 together with a die head 21 provided to the tip of a synthetic resin extruding machine 20. The resin wire rod forms a hollow groove 2 on the spacer cable while being twisted gently by rotation of the mouth piece 22. In many cases the groove 2 is deformed. Then, the wire rod passes through a heat retaining tank 23 and goes to a working device 10. At this time, it is guided while passing a through hole 26 of an indicator 25, passes through the heat retaining tank 23, and goes to a correcting rotary member A of the device 10. Here, the cable 1 passes through an opening made by a contact face 16a formed at the center of concentrated rolls 16. Then, it passes a drawing hole 19 of a drawing die 17 as it is, and completed. |
