| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a variable speed air-drive mechanism capable of controlling working speed easily, smoothly and accurately. SOLUTION: A variable speed air-drive mechanism is provided, in which opeartion of an air cylinder S which air-drives various working members is controlled by a solenoid switching valve 5 which performs air supply switching. In this mechanism, speed controllers 7a, 7b and 11a, 11b of meter-in and meter- out for controlling the air cylinder S are provided, and plural air supply periods determined by the solenoid switching valve 5 are set so that the periods have different lengths, thereby variable speed controlling a cylinder working speed.</p> |
