| 摘要 |
PURPOSE:To obtain a stable wire tension and to enhance a maintenance property by a method wherein a tension-giving mechanism is constituted in such a way that a gas flows along one guide sheet. CONSTITUTION:A tension-giving mechanism 30 is constituted of the following: a nozzle 31 directed toward a wire 1; and one guide sheet 33 installed along the flow direction of a gas which is jetted from a jet orifice 32 formed in the nozzle 31. By using the tension-giving mechanism 30, the gas flows along the guide sheet 33 from the jet orifice 32 formed in the nozzle 31. Consequently, a tension is given to the wire 1 in the flow direction of the gas; the wire 1 is pressed to the guide sheet 33 by a pressure force of the gas ; a prescribed wire tension can be obtained stably. The contamination state of the guide sheet 33 is detected easily, a cleaning operation can be executed simply and a maintenance property can be increased. |
