| 摘要 |
<p>PURPOSE:To perform automatic oil feeding without lowering the working efficiency by jetting lubricating oil from a nozzle in association with the ascending or descending action of a cutting head to feed oil to a cutting blade drive mechanism part. CONSTITUTION:At the time of feeding oil to a cutting blade drive mechanism part 1B, the piston rod 5A of an oil feeding cylinder 4 is previously pulled in to place lubricating oil in an oil sump 3 into the state of being sucked into a fine path. At the time of cutting work, high pressure air is supplied into an elevating cylinder 9 from a high pressure air source 10 to lower a cutting head 1. Synchronously with this, high pressure air is supplied into the oil feeding cylinder 4 to actuate a pump 5, and lubricating oil is jetted from a nozzle 7 toward the cutting blade drive mechanism part 1B. The elevating cylinder 9 and the oil feeding cylinder 4 are controlled by a control part.</p> |
