| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic dust collector capable of realizing with a simple structure and of being improved in its work efficiency. SOLUTION: In this collector, a switch 23 is set on a suction nozzle 22. The switch 23 and a fluid switching body structure 6, which is set on a pneumatic dust collector body, are connected with tubes 33, 34. The fluid switching body structure 6 has a valve stem 12 which is energized in the left direction and a spool 30 which is touched to the top part of the valve stem 12. When the switch 23 is on, compressed air is moved through the tube 33, the switch 23, and the tube 34 to the spool 30, then the spool 30 is pushed with the compressed air. As a result, the valve stem 12 is moved in the right direction and the valve stem 12 is opened. Then the compressed air is gone to an ejector through the valve stem 12 to start the pneumatic dust collector. To the contrary, when the switch 23 is off, the compressed air is blocked at the position of switch 23, then the pneumatic dust collector stops sucking. |
