| 摘要 |
PURPOSE:To automatically stop supply of cutting oil when a cutting head rises not to perform cutting work, by interposing a valve body, operated interlocking to a lifting of the cutting head, in the above described supply device. CONSTITUTION:During the time for a band saw tooth 21 separated from a work, cutting oil is not jetted and recirculated from a relief valve. If a cutting head 19 beings to lower for cutting work, firstly an overhung plate 51 is adapted to the work, and a pipe body 37 can not be lowered, then the pipe body relatively rises in an insert arm 29. Then at a position for the band saw tooth 21 to start cutting, a valve operator 73 moves a valve rod 59 rightward to open a valve body 57, and the cutting oil is injected onto the band saw blade through a connection port 61, upper connection port 63, flow regulating valve 65 and horizontal conduction pipe 65. |
