| 摘要 |
PURPOSE:To ensure the supplying effect of the working liquid by a method wherein a pipe is provided in a working groove at the back side of a wire to supply or suck the working liquid through the pipe. CONSTITUTION:The main body 5 of a nozzle supplies the working liquid coaxially with the wire. The pipe 14A is attached to the main body 5 of the nozzle pivotably centering around the wire 2 and is controlled by a driving motor 20 so as to be located at the back side of the wire 2 in the working groove at all times. The pipe 14A is provided with an opening 14B at an arbitrary position and the working liquid is supplied or sucked through the opening. According to this method, the best flow of the working liquid may be obtained in all working conditions. |
