Process and apparatus for piecing a thread in open-end spinning
    1.
    发明授权
    Process and apparatus for piecing a thread in open-end spinning 失效
    用于在开放式纺纱中接合螺纹的方法和设备

    公开(公告)号:US5414985A

    公开(公告)日:1995-05-16

    申请号:US303600

    申请日:1994-09-09

    IPC分类号: D01H4/50 D01H5/50

    CPC分类号: D01H4/50

    摘要: For piecing a thread in an open-end spinning apparatus having a fibre collection surface, a sliver is supplied to the clothing of an opening cylinder and opened thereby into fibres and is supplied in this form to the fibre collection surface. There, the fibres are incorporated into the end of a returned thread which is then drawn off continuously. During this, the leading end of the sliver, forming a tuft, is supplied for piecing to the opening cylinder, at a penetration depth which is greater than the penetration depth after piecing, whereas piecing is carried out in a manner conventional per se, matched to a reduction in the penetration depth. This reduction in the penetration depth is carried out suddenly in order to counter thick points in the joint. To carry out the process, a penetration depth alteration apparatus is provided which is in controlled connection with a control apparatus.

    摘要翻译: 为了在具有纤维收集面的开放式纺纱装置中接合线,纱条被供给到开口圆筒的衣服,从而被打开成纤维,并以此形式供应到纤维收集表面。 在那里,纤维被并入到返回螺纹的末端,然后连续地抽出。 在此期间,成形毛束的条子的前端被提供用于接头到开口圆筒,其穿透深度大于接头后的穿透深度,而接头以常规本身的方式进行匹配 以减少穿透深度。 渗透深度的这种减少突然地进行以抵消接头中的厚点。 为了执行该过程,提供了一种与控制装置控制连接的穿透深度改变装置。

    Process and device for piecing on an open-end spinning device
    2.
    发明授权
    Process and device for piecing on an open-end spinning device 失效
    开口纺纱装置接头的工艺和装置

    公开(公告)号:US5456073A

    公开(公告)日:1995-10-10

    申请号:US265098

    申请日:1994-06-24

    IPC分类号: D01H4/50

    CPC分类号: D01H4/50

    摘要: The instant invention relates to a process and device for piecing on an open-end spinning device. Before the beginning of the piecing process the desired run-up curve for the fiber stream which is to be fed to the fiber collection surface and the acceleration curve of the fiber feeding device corresponding to this run-up curve are defined. During piecing the fiber feeding device is switched on and is driven in accordance with the defined acceleration curve. The fiber stream produced thereby is deflected and removed on its way between the fiber feeding device and a fiber collection surface. In this process the current actual values are calculated from the acceleration curve of the fiber feeding device and the fiber stream is again fed to the fiber collection surface when a predetermined desired value has been reached, before the fiber stream which is started by switching on the fiber feeding device has reached its full strength. In coordination therewith, a yarn is fed back to the fiber collection surface and is then continuously withdrawn from the fiber collection surface while the fibers are continuously incorporated.

    摘要翻译: 本发明涉及一种用于在开放式纺纱装置上接头的方法和装置。 在接头处理开始之前,定义要送入纤维收集表面的纤维流的期望起动曲线和对应于该起动曲线的纤维进给装置的加速曲线。 在接头期间,纤维馈送装置被接通并根据所确定的加速度曲线被驱动。 由此产生的纤维流在纤维馈送装置和纤维收集表面之间的途中被偏转和去除。 在这个过程中,当前的实际值是根据光纤馈送装置的加速度曲线计算出来的,并且当达到预定的期望值时,纤维流再次被馈送到光纤收集表面,在通过接通 纤维喂料装置已达到其全面实力。 与其配合,将纱线反馈到纤维收集表面,然后在纤维连续地结合的同时从纤维收集表面连续地取出。

    Process and apparatus for cleaning an open-end spinning rotor
    3.
    发明授权
    Process and apparatus for cleaning an open-end spinning rotor 失效
    用于清洁开放式旋转转子的方法和装置

    公开(公告)号:US5367867A

    公开(公告)日:1994-11-29

    申请号:US949170

    申请日:1992-09-22

    IPC分类号: D01H4/22 D01H4/24

    CPC分类号: D01H4/24

    摘要: A process for cleaning an open-end spinning rotor which has a fiber collection channel and an open edge, which is covered by a rotor cover. A first compressed-air stream is directed towards the fiber collection channel in a first cleaning phase. Then, in a second cleaning phase, the spacing between the open edge of the spinning rotor and the rotor cover is increased. In addition, a suction air flow leaving the spinning rotor over its open edge is produced. To carry out this process, there is associated with the rotor cover an opening apparatus which is connected, together with at least one blower channel to a common control apparatus. Associated with the rotor cover and with the blower channel, are in each case two working positions, of which the respectively first working position is adopted during the normal spinning operation and in which a compressed-air stream which can be switched on to clean the spinning rotor and which leaves at least one blower channel directed towards the inner surface of the spinning rotor. The respective second working position is set so that the compressed-air stream leaving at least one blower channel either produces an air flow directed from the fiber collection channel towards the open edge of the spinning rotor or is guided away over the open edge of the spinning rotor.

    摘要翻译: 一种用于清洁具有纤维收集通道和开口边缘的开放式旋转转子的方法,其由转子盖覆盖。 第一压缩空气流在第一清洗阶段被引向纤维收集通道。 然后,在第二清洗阶段,纺纱转子的开口边缘与转子盖之间的间隔增加。 此外,产生离开旋转转子在其开口边缘上的吸入空气流。 为了执行该过程,与转子盖相关联,打开装置与至少一个鼓风机通道连接到公共控制装置。 与转子盖和鼓风机通道相关联,在每种情况下都有两个工作位置,其中在正常纺纱操作期间分别采用第一工作位置,并且可以打开可以打开的压缩空气流以清洁纺纱 并且其留下至少一个引导到纺丝转子的内表面的鼓风机通道。 相应的第二工作位置被设定为使得离开至少一个鼓风机通道的压缩空气流产生从纤维收集通道朝向纺丝转子的开口边缘引导的空气流,或者被引导离开旋转的开口边缘 转子。

    Process and device for piecing on an open-end spinning device
    4.
    发明授权
    Process and device for piecing on an open-end spinning device 失效
    开口纺纱装置接头的工艺和装置

    公开(公告)号:US5191760A

    公开(公告)日:1993-03-09

    申请号:US686871

    申请日:1991-04-16

    IPC分类号: D01H4/50

    CPC分类号: D01H4/50

    摘要: A yarn piecing device and process for an open-end spinning machine wherein opened fiber is fed to a fiber collection surface in a pneumatic stream. The stream of fibers is shifted from the fiber collection surface when a broken or missing yarn is detected and the fiber feed to an opening device is interrupted. After the yarn is back-fed to the collection surface, the fiber feed to the opening device is restarted and the pneumatic stream of fibers is shifted back to the fiber collection surface before the fiber density in the pneumatic stream attains its production strength density.

    摘要翻译: 一种用于开放式纺丝机的纱线接头装置和方法,其中开放的纤维被供给到气流中的纤维收集表面。 当检测到断裂或缺失的纱线并且打开装置的纤维进给被中断时,纤维流从纤维收集表面移位。 在将纱线反馈到收集表面之后,重新启动进入打开装置的纤维,并且在气动流中的纤维密度达到其生产强度密度之前,将气动气流送入纤维收集表面。