Method and apparatus for drawing out and subsequently rewinding a yarn
end onto a textile yarn package
    1.
    发明授权
    Method and apparatus for drawing out and subsequently rewinding a yarn end onto a textile yarn package 失效
    用于绘制和随后将纱线末端装入纺织纱线包装的方法和装置

    公开(公告)号:US5104052A

    公开(公告)日:1992-04-14

    申请号:US675698

    申请日:1991-03-27

    IPC分类号: B65H67/08

    CPC分类号: B65H67/086 B65H2701/31

    摘要: A method and apparatus are provided for separating a yarn end of a yarn package from the outer layer of the yarn package and disposing the separated yarn end onto the yarn package in a preferred disposition. The apparatus includes a drive device for rotating a yarn package in an unwinding direction, an assembly for performing a yarn end drawing out operation during the unwinding rotation of the yarn package and a device for determining that a successful yarn end drawing out operation has been performed including an assembly for detecting that a yarn end of at least a predetermined length has been drawn out. The apparatus also includes an assembly for controlling the drive device to stop the unwinding rotation of the yarn package in response to the earlier of the lapse of a predetermined period of time and the receipt of a signal from the detecting device indicating that a successful yarn end drawing out operation has been performed. A designation device applies a designation to those yarn packages which do not have a yarn end which has been successfully drawn out, and a reading device and a yarn package transfer device operate together to transfer such unsuccessfully prepared yarn packages.

    摘要翻译: 提供了一种方法和装置,用于将纱线卷装的纱线端部与纱线卷装的外层分离,并将分离的纱线端部以优选的布置布置在纱线卷装上。 该装置包括用于沿退绕方向旋转纱线卷装的驱动装置,用于在纱线卷装的退绕旋转期间进行纱线端拔出操作的组件以及用于确定已经执行成功的纱线抽出操作的装置 包括用于检测至少预定长度的纱线端头已被拉出的组件。 该装置还包括一个组件,用于控制驱动装置,以响应于早于预定时间段的过去而停止纱线卷装的退绕旋转,并且从检测装置接收到指示成功的纱线端部的信号 已执行拔出操作。 指定装置对没有成功拉出纱线端的那些纱线包装件进行指定,并且读取装置和纱线包装传送装置一起操作以传送这种未成功制备的纱线卷装。

    Method and apparatus for preparing a yarn package for a subsequent yarn
restarting operation
    2.
    发明授权
    Method and apparatus for preparing a yarn package for a subsequent yarn restarting operation 失效
    用于制备用于后续复原操作的纱线包装的方法和装置

    公开(公告)号:US5090189A

    公开(公告)日:1992-02-25

    申请号:US591447

    申请日:1990-10-01

    CPC分类号: D01H15/013

    摘要: A method and apparatus for preparing a yarn package for a subsequent yarn restarting operation are provided. The apparatus includes an air jet for directing a tangential stream of pressurized air against a yarn package to effect loosening of a length of auxiliary yarn which has been wound on the yarn package during a prior unsuccessful yarn restarting operation in which the auxiliary yarn length failed to piece with the yarn still to be wound onto the yarn package. The air jet operates in cooperation with a suction conduit to completely unwind the unsuccessfully pieced auxiliary yarn length from the yarn package to thereby prepare the yarn package for receiving another length of auxiliary yarn during a subsequent yarn restarting operation. According to one aspect of the invention, the auxiliary yarn travels over a roller supported at the free end of a delivery arm mounted on a traveling service unit and the roller is selectively disposable in rotation transmitting engagement with the lower roller of a roller pair of the drafting device to effect feeding of the auxiliary yarn onto the yarn package. If the auxiliary yarn has not successfully pieced with the still-to-be-wound yarn after a predetermined lapse of time, the roller on the delivery arm is positioned against an upper roller of a roller pair of the drafting device to effect unwinding of the auxiliary yarn previously wound onto the yarn package.

    摘要翻译: 提供了一种用于制备用于随后的纱线重新启动操作的纱线卷装的方法和装置。 该装置包括用于将加压空气的切向流引导到纱线卷装上的空气射流,以在先前不成功的纱线重新启动操作期间卷绕在纱线卷装上的一段长度的辅助纱线松动,其中辅助纱线长度不能 纱线仍然被卷绕到纱线包装上。 空气喷嘴与抽吸管道协同操作,以从纱线包装中完全展开未成功接合的辅助纱线长度,从而制备用于在随后的纱线重新启动操作期间接收另一长度的辅助纱线的纱线卷装。 根据本发明的一个方面,辅助纱线在支撑在安装在行进维修单元上的输送臂的自由端处的辊上行进,并且该滚轮选择性地一次性地与辊对的下辊旋转传递接合 牵伸装置,用于将辅助纱线进给到纱线卷装上。 如果辅助纱线在经过预定的时间后还没有成功地与待缠绕的纱线接合,则输送臂上的辊子抵靠牵引装置的一对辊对的上辊定位, 预先缠绕在纱线卷装上的辅助纱线。

    Apparatus for doffing bobbin tubes from support members
    3.
    发明授权
    Apparatus for doffing bobbin tubes from support members 失效
    用于从支撑构件落纱筒管的装置

    公开(公告)号:US5275274A

    公开(公告)日:1994-01-04

    申请号:US994360

    申请日:1992-12-21

    IPC分类号: B65H67/06 D01H9/18 B65G37/00

    CPC分类号: D01H9/187

    摘要: An apparatus for doffing textile bobbin tubes from tube support members having posts projecting therefrom for supporting tubes thereon as the tube support members are conveyed along a transport path by a transport device with the tube support members being slidably supported on the transport device to allow stoppage of a tube support member as a tube is doffed without deactivating the transport device is disclosed. The tube doffing apparatus comprises a pair of opposed tube engaging and doffing devices having tube engaging surfaces which may be conveyor belts with guide and support rollers straddling the path of posts of support members traveling along the transport path and extending away from the transport path in the general direction of projection of the support member posts. These devices are disposed for engaging a tube on a post of a support member supported on the transport path and thereby stopping the support member while removing the tube from the post. The surfaces converge transversely in the downstream direction of the transport path from an upstream spacing therebetween greater than the transverse extent of the tube on a support member to a downstream spacing less than the transverse extent of a tube and greater than the transverse extent of the post of the tube support member to allow a support member from which a tube has been removed to resume travel along the transport path past the doffing apparatus.

    摘要翻译: 一种用于从具有从其上突出的柱的管支撑构件用于从其支撑管作为管支撑构件的织物筒管的装置通过运输装置沿输送路径输送,其中管支撑构件可滑动地支撑在输送装置上以允许停止 公开了作为管的管支撑构件而脱落而不停止输送装置。 管脱落装置包括一对相对的管接合和落纱装置,其具有管接合表面,其可以是传送带,其具有跨过沿着传送路径行进并沿着传送路径延伸的支撑构件的柱的路径的引导和支撑辊 支撑构件柱的总体投射方向。 这些装置被设置用于将管接合在支撑在传送路径上的支撑构件的柱上,从而在从管柱移除管的同时停止支撑构件。 这些表面在输送路径的下游方向上从其上游间隔横向收缩,大于支撑构件上的管的横向范围,直到小于管的横向范围的下游间隔并且大于柱的横向范围 以允许已经从其中移除管的支撑构件沿着通过落纱装置的输送路径继续行进。