Abstract: In a traveling wire take-up method and machine of a wire coating line, a wire shifting guide lever of a take-up machine shifts a traveling wire toward a snagger of a bobbin holder to change over from a presently take-up bobbin to an empty bobbin. A take-up tension of the traveling wire is increased before the changeover operation, and the take-up tension of the traveling wire is reduced to a predetermined take-up tension after the changeover operation has been finished. Furthermore, increase and decrease of the take-up tension is preferably controlled by adjusting an output of a sheave motor in a dancer roller disposed in front of the take-up machine.

Abstract: Disclosed is a method for cooling a coated wire including: preparing a water storage tank disposed between an extruder for coating a core wire with an insulating material and for feeding the coated wire forwardly, and a winder for winding the coated wire; and passing the coated wire before being wound through still water in the water storage tank thereby rapidly cooling the coated wire, the improvement comprising: preparing trough members disposed between the water storage tank and the extruder along the advance direction of the coated wire in such a manner as to cover the coated wire from the underside; and cooling the coated wire by water which is discharged to the trough members and is made to flow therein and thereafter passing the coated wire through the water storage tank. Using the above method, even in manufacture of an insulated wire having a coated outside diameter of 1 mm or less, it is possible to suppress the surface roughness of the coated wire in the degree of at least 1 .mu.m.