| 摘要 |
An apparatus forms a dead, short or waste winding adjacent a reserve winding when winding a thread onto a spool or the like. A delivery mechanism provides a supply of thread to a spool core at an end location axially displaced from the winding area of the spool. A winding forming means is located at the end location of the spool core. The winding forming means includes a rotatably mounted worm having a particular type of circumferential groove configuration disposed therealong. A predetermined number of narrow circumferential grooves having a relatively small pitch extend from the inlet side of the worm toward the outlet side thereof. Immediately thereafter, at least one further circumferential groove having a larger pitch than the grooves disposed toward the inlet side of the worm extends from the end of the small pitch circumferential grooves to the outlet side of the worm. The narrow circumferential grooves having a smaller pitch are effective to cause the formation of a waste winding before the production of the reserve winding.
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