| 摘要 |
A multi-spindle turret winder of surface winding-center winding system provided with a first contact roller partaking in initial winding from a first winding station to an intermediate station and a second contact roller partaking in, after change-over from the former, winding-up to roll products from the intermediate station to a second winding station. In order to perform a transparent winding under a constant tension on a stretch film without air being entrapped in roll products, speed control means is provided to impart, immediately before press contact, a peripheral speed slightly faster than the first contact roller to the second contact roller and, after press contact, a peripheral speed gradually increasing at an increment proportional to the turning angle of the turrets during movement from the intermediate station to the second winding station; and a cam is provided which is actuated interlocking with the indexing motion of the turrets and has such a profile that limits a displacement magnitude of the first contact roller so as to increase variations in path length of the film in proportion to the turning angle of the turrets.
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