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    • 3. 发明授权
    • Method and apparatus for producing an end winding on a yarn bobbin
    • 在纱线架上制造端部卷绕的方法和装置
    • US4909451A
    • 1990-03-20
    • US327814
    • 1989-03-22
    • Wilhelm KuepperHeinz-Lorenz TopuettHelmuth HensenUwe Fabelje
    • Wilhelm KuepperHeinz-Lorenz TopuettHelmuth HensenUwe Fabelje
    • B65H54/34D01H1/38
    • D01H1/38B65H54/34B65H2701/31
    • A method and apparatus for producing an end winding on a bobbin on which yarn has been wound. The bobbin is wound in an unwinding direction while the trailing yarn end is engaged and a length of yarn is unwound from the bobbin by suction. The yarn is released from the suction once a length of yarn has been unwound from the bobbin, the released unwound yarn falls onto a yarn support member to be supported at a location at substantially the level of the upper end of the bobbin. The bobbin is then further rotated in the unwinding direction to wind the unwound yarn length into an end winding on the upper end of the bobbin. The yarn support member includes a pair of oppositely sloping transverse surfaces spaced lengthwise of the yarn from one another to define a receiving slot therebetween and a yarn guiding eye is disposed beneath and in communication with the receiving slot for supporting the unwound yarn length during winding of the end winding.
    • 一种用于在卷绕有纱线的筒管上制造端部卷绕的方法和装置。 绕线筒沿着退绕方向卷绕,同时使尾纱端部接合,并且通过抽吸将一定长度的纱线从筒管展开。 一旦一段长度的纱线从线轴展开,纱线将从吸力中释放出来,释放的退绕纱线落在纱线支撑件上,以支撑在基本上在筒管上端的位置。 然后,线轴在退绕方向进一步旋转,以将展开的纱线长度卷绕到线轴上端的端部卷绕中。 纱线支撑构件包括一对相对倾斜的横向表面,所述一对相对的横向表面在纱线的纵向上彼此间隔开以在其间限定接纳槽,并且纱线引导眼设置在接收槽下方并与接收槽连通,用于在卷绕期间支撑展开的纱线长度 末端绕组。