| 摘要 |
PURPOSE:To reduce the suction amt. from unnecessary part and to increase dust collection effect by a fan of small capacity by providing a dust collecting pipe inside each dust collecting chamber at the lower part of a work table and connecting each dust collecting pipe to a duct freely in its communication and cutting off. CONSTITUTION:The dust generated at the cutting time of a work is sucked from the plural holes provided at the tip and lower part of a suction cylinder 53 in the dust collection chamber to which a work head corresponds, fed into a duct 51 in the state of a damper 57 being open and exhausted outside by a fan. Only the dust collecting pipe of the dust collecting chamber at which the work head is located thus works, the dust collection chamber is made smaller than in the past and the dust generated in thermal cutting can be collected by the dust collecting pipe as well. |
