| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet metal working machine with a cut chip aspirator, which solves the problem of the prior art in a sheet metal working machine with a cut chip aspirator, and a sheet metal working machine with a cut chip aspirator, which has high process reliability and warrants an action of operation feasibility, of a punching machine.SOLUTION: In a suction passage (15), a negative pressure sensor (25) is interposed between the last sieve (24), as seen in a flow direction, and a suction fan (26) so that a plurality of disadvantage causes can be detected by only one sensor. At the same time, it is possible to avoid the increase in the trouble which takes the arrangement of the negative pressure sensor in a chip chamber (16). |
