| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary sliding valve which is suitable particularly for an open drum of a feeder, and can easily be adjusted at the starting and ending times of suctioning. SOLUTION: A rotary sliding valve has a stationary valve plate 10 having a vacuum connection part 11, and a sliding body 12 which connects the vacuum connection part 11 to a suction opening 9 at a first valve position. At a second valve position, the suction opening is connected to an explosion opening 21. The suctioning angles are specified at both valve positions. Such a rotary sliding valve has a means 22 for adjusting suctioning angle.</p> |
