| 摘要 |
PURPOSE:To have high-precision intermittent feeding by reciprocation of a feed pin, which is detainable at and separable from a feed hole, for a distance corresponding to one pitch specified and protrusion/retraction of a pin, which shall serve for location, by furnishing a feed hole and a locational hole in a plurality of attachments coupled in series in the longitudinal direction of an endless chain. CONSTITUTION:When a motor 28 is put in operation, a swinging cam 34 in engagement with a cam 31 will raise (a) a feed pin 17 with the aid of an elevating/ sinking slider 21, and the pin 17 is set in a feed hole 14 provided in an attachment 13. Then a swinging lever 33 in engagement with a cam 30 sinks (b) a locational pin 23 with the aid of an elevating/sinking slider 24, and the pin 23 is set out of a location hole 15. Then another swinging lever 35 in engagement with a cam 32 feeds (c) the feed pin 17 with the aid of a slider 18 for a distance corresponding to one pitch specified, and the attachement 13 and chain 11 are moved in the same direction. Thereafter the locational pin 23 rises (d), and the feed pin 17 sinks (e) and moves to the right (f). Thus one cycle is completed, and the attachement 13 is sent further by repetition of this cycle. |
