| 摘要 |
Method and apparatus for tandem yarn winding filamentary structures, such as filaments or yarn, onto a plurality of bobbins in such a manner so as to substantially preclude the migration of finish from one filamentary structure to the other. A traversing guide conducts each pair of yarn onto the surface of the drive roll. The yarns pass around at least a portion of the surface of the drive roll before being wound on the bobbins which are driven by the drive roll. Each bobbin is mounted on a chuck which is movable on a carriage, preferably along a straight path toward and away from the drive roll. As the yarn package builds, the axis of rotation of each bobbin progressively moves away from the drive roll. A cam and follower associated with the carriage imposes a predetermined resistance to movement of the carriage, thereby maintaining a suitably programmed force between the bobbin and the drive roll throughout the winding process, which force is necessary to build stable and well-formed yarn packages.
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