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    • 4. 发明授权
    • Arrangement for the stretching and warping of warp threads
    • 经纱拉伸和翘曲的布置
    • US4669159A
    • 1987-06-02
    • US567504
    • 1984-01-03
    • Bogdan Bogucki-Land
    • Bogdan Bogucki-Land
    • D02J1/22D02J13/00D02H3/00
    • D02J1/226D02J1/224
    • In an arrangement for the stretching and warping of thermoplastic warp threads, in particular polyester threads, there is provided an arrangement comprising a set of feeding rollers, a heating arrangement and a set of take-off rollers. The latter set of rollers has a higher circumferential speed than the former. Between the two sets of rollers there is provided at least one deflecting roller. The circumferential surface of this deflecting roller is divided into a heatable section and a relatively non-heatable section. The deflecting roller is rotatable from an operating position, in which the deflecting surface comprises the heatable surface portion, into a rest position wherein the deflecting surface presented is the non-heatable portion. In this way, the length of the thread exposed to heat can be extended between the feeding and take-off rollers without overheating of thread during the stopping of the arrangement. Other aspects of the mode of the process are also described herein.
    • 在用于热塑性经纱,特别是聚酯线的拉伸和翘曲的布置中,提供了包括一组进料辊,加热装置和一组取出辊的布置。 后一组辊具有比前者更高的圆周速度。 在两组辊之间设置有至少一个偏转辊。 该偏转辊的圆周表面被分成可加热部分和相对不可加热的部分。 偏转辊可从其中偏转表面包括可加热表面部分的操作位置旋转到静止位置,其中所呈现的偏转表面是不可加热部分。 以这种方式,暴露于热的线的长度可以在进给和取出辊之间延伸,而在布置停止期间不会过度加热螺纹。 本文还描述了该方法的其它方面。