| 摘要 |
PROBLEM TO BE SOLVED: To provide a mist recovery device for a processing machine, which is arranged outside the processing machine, and recovers mist generated due to spattering of working fluid fed into a processing area, with high efficiency. SOLUTION: The processing machine 11 has an exhaust conduit 71 arranged inside a bed 12 thereof in a manner penetrating the bed, which exhaust conduit introduces the working fluid from a machining fluid recovery container 13 arranged on the bed 12 immediately below the machining area MA, to the outside of the processing machine. Then a mist recovery conduit 72 is branched from the exhaust conduit 71 at a location immediately before a terminal of the same, and extended upward to be connected to the mist collecting device 60 arranged outside the processing machine. Further the finishing machine is provided with a ventilation blocking means 80 which is operable when the mist collecting device 60 carries out vacuum operation to make the interior of the mist recovery conduit 72 in a negatively pressurized state, so as to allow the working fluid to flow from an exhaust port 73 to a recovery container means 57 but to inhibit gas from flowing from the exhaust port 73 to the mist recovery conduit 72. In this manner the vacuum operation of the mist recovery device is effectively exerted in the exhaust conduit 71. COPYRIGHT: (C)2005,JPO&NCIPI
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