| 摘要 |
PROBLEM TO BE SOLVED: To realize a part feeder which is less vibrated in operation and capable of feeding parts at a high speed, by a method wherein a pressing roller is set changeable in pressing stroke in accordance with the effective strokes of feed levers corresponding to the previously set pitches of part feeding units. SOLUTION: When a part feeding table 3 moves a part feeding unit 1 in the direction of a, a feeder 8 outputs previously stored control data applied to the part feeding unit 1 to set a proper pressing stroke controlling a linear servo motor 11. The reciprocal stroke of a rod 14 by the rotation of a cam 19 is kept constant, but the pressing stroke of a pressing roller 9 gets almost inversely proportional to a distance between a point 21 of drive application and a rotating shaft 23, so that it gets smaller with the movement of the point 21 of drive application towards the tip of a drive arm 10 and larger with the movement of the point 21 of drive application towards the rotating shaft 23. By this setup, the pressing roller 9 can be reduced to an irreducible minimum in speed for each part feeding unit 1 at a time when it bears against the feed lever 4. |
