Method of and apparatus for piecing yarn in open end rotor spinning units
    1.
    发明授权
    Method of and apparatus for piecing yarn in open end rotor spinning units 失效
    在开放式转杯纺纱机中接头纱线的方法和装置

    公开(公告)号:US4246749A

    公开(公告)日:1981-01-27

    申请号:US29371

    申请日:1979-04-12

    IPC分类号: B65H69/06 D01H4/50 D01H15/02

    CPC分类号: D01H4/50

    摘要: A method of and an apparatus for piecing yarn in open end rotor spinning units. The returning of the yarn end into the spinning rotor for piecing is performed in two stages, in the first of which the yarn is stopped immediately upon breakage within the sucking range of the spinning rotor, and is brought immediately thereafter into a withdrawal chamber in which the yarn end is retained. In the second stage the yarn end is separated and deposited in said withdrawal chamber, and the new yarn end is introduced by further reverse motion into the spinning rotor. The apparatus has a withdrawal chamber interposed between the inlet of the withdrawing channel and a cutting mechanism. In one embodiment said chamber is connected to the withdrawing channel, opposite which there is mounted a nozzle connected to a controlled pressure air source. In another embodiment there is provided a nozzle communicating with the withdrawal chamber, said nozzle being connected to a controlled source of underpressure.

    摘要翻译: 用于在开放式转子纺纱单元中接头纱线的方法和装置。 将纱线端部返回到用于接头的纺丝转子中进行两个阶段,其中第一个纱线在旋转转子的吸入范围内立即停止,并立即被引入到抽出室中,其中 纱线端部被保持。 在第二阶段中,纱线端部被分离并沉积在所述抽出室中,并且新的纱线端部通过进一步的反向运动引入纺丝转子中。 该设备具有介于抽出通道的入口和切割机构之间的抽出室。 在一个实施例中,所述腔室连接到抽出通道,与之相对的是安装有与受控压力空气源连接的喷嘴。 在另一个实施例中,提供了一个与抽出室连通的喷嘴,所述喷嘴连接到受控的负压源。

    Dynamic yarn-braking arrangement for an open-end spinning machine
    2.
    发明授权
    Dynamic yarn-braking arrangement for an open-end spinning machine 失效
    一种开放式纺纱机的动态纱线制动装置

    公开(公告)号:US4104854A

    公开(公告)日:1978-08-08

    申请号:US730416

    申请日:1976-10-07

    CPC分类号: D01H4/48

    摘要: An improved technique for stopping the advance of spun yarn through the draw-off rollers and distributing cylinder of an open-end spinning machine in response to a detected yarn breakage condition is described. A reversible clutch is selectively interposed between first and second oppositely rotating drive shafts and the cylinder, which in turn is coupled to the draw-off rollers. The clutch is operated from a normal forward advance condition to an operated reverse condition for a duration corresponding to a variable-duration control pulse generated in response to a yarn breakage condition upstream of the discharge end of the machine withdrawal tube. The duration of the control pulse is adjusted to dynamically brake the forward motion of the advancing yarn to a stop. The control pulse is removed soon enough to prevent reverse movement of the yarn.

    摘要翻译: 描述了一种改进的技术,用于响应于检测到的纱线断裂状况,停止纺纱通过抽出辊和开口纺纱机的分配筒的进行。 可逆式离合器选择性地插入在第一和第二相对旋转的驱动轴和气缸之间,气缸又连接到抽出辊。 离合器从正常的向前进给状态操作到操作的反转状态,持续时间对应于响应于机器提取管的排出端上游的断纱条件产生的可变持续时间控制脉冲。 控制脉冲的持续时间被调整以动态地将前进纱线向前运动地制动到停止位置。 控制脉冲被足够快地移除以防止纱线的反向移动。

    Apparatus for spinning-in yarns in open-end rotor spinning units
    3.
    发明授权
    Apparatus for spinning-in yarns in open-end rotor spinning units 失效
    开放式转杯纺纱机中纺纱机的设备

    公开(公告)号:US4369620A

    公开(公告)日:1983-01-25

    申请号:US233398

    申请日:1981-02-11

    IPC分类号: D01H4/50 D01H15/02

    CPC分类号: D01H4/50

    摘要: The invention relates to an apparatus for the spinning-in of yarns in an open-end rotor spinning unit. The apparatus includes a spinning-in device for returning yarn end through a take-off duct into the spinning rotor, a severing device for shortening the yarn end to a predetermined length, and a withdrawing duct which communicates with the take-off duct and which is designed, on the one hand, for holding the yarn end by the action of a vacuum which, in the contact region of the two ducts, exceeds the working vacuum in the take-off duct, and, on the other hand, for withdrawing the severed yarn end. In accordance with an essential feature of the invention, at least one air nozzle opens into the withdrawing duct which during both spinning and spinning-in processes is connected to a subatmospheric pressure source, which nozzle is designed for introducing a fresh yarn end into the take-off duct by a controlled air outflow in a particular phase of the spinning-in process. The invention expediently utilizes the subatmospheric pressure air for both the spinning-in process and the withdrawal of impurities from the yarn in the take-off duct of the spinning rotor during the spinning process.

    摘要翻译: 本发明涉及一种用于在开放式转子纺纱单元中纺纱的装置。 该装置包括用于将纱线端部通过引出管道返回到纺丝转子中的纺纱装置,用于将纱线端部缩短到预定长度的切断装置和与取出管道连通的抽出管道, 一方面设计用于通过在两个导管的接触区域中超过起飞管中的工作真空度的真空的作用来保持纱线端,另一方面,为了抽出 切断纱线末端。 根据本发明的基本特征,至少一个空气喷嘴通向抽出管道,在两个纺纱和纺纱过程中,两个喷嘴连接到一个低于大气压的压力源,该喷嘴被设计用于将新鲜的纱线端部引入到卷取装置 在纺纱过程的特定阶段通过受控的空气流出。 本发明在纺丝过程中方便地利用低于大气压的空气进行纺丝过程和纺丝转子的送出管中的纱线中的杂质的抽出。

    Apparatus for timing a spinning-in operation of a textile machine
    5.
    发明授权
    Apparatus for timing a spinning-in operation of a textile machine 失效
    用于定时纺织机的纺纱操作的装置

    公开(公告)号:US4050226A

    公开(公告)日:1977-09-27

    申请号:US730593

    申请日:1976-10-07

    CPC分类号: D01H4/00 D01H4/50

    摘要: An arrangement for timing the initiation of a spinning-in operation of an open-end textile machine is described. A sequencer is coupled to the take-up bobbin to provide an indication proportional to the increase in diameter of the yarn package during the take-up operation. The sequencer converts changes in such indication to a variable delay of signals to be applied to at least the take-up rollers and yarn-distributing rollers of the machine. The thus-delayed signals, whose delay is continually updated as the diameter of the yarn package increases, are applied to the appropriate rollers upon the detection of yarn breakage or other suitable initiation signal for the spinning-in mode.

    摘要翻译: 描述了用于定时开始开端纺织机的纺纱操作的布置。 定序器耦合到卷取筒管,以提供与卷取操作期间纱线卷装的直径增加成比例的指示。 定序器将这种指示的变化转换为至少应用于机器的卷取辊和分配辊的信号的可变延迟。 随着纱线包装的直径不断更新的延迟信号在纱线断裂检测或纺纱模式的其他合适的起始信号时被施加到适当的辊子上。

    Method of and apparatus for transporting empty bobbin tubes to a pick-up
and delivery station in open-end spinning, winding, yarn texturing and
similar machines
    6.
    发明授权
    Method of and apparatus for transporting empty bobbin tubes to a pick-up and delivery station in open-end spinning, winding, yarn texturing and similar machines 失效
    将空筒管输送到开口纺纱,卷绕,纱线织纹和类似机器的拾取和输送站的方法和装置

    公开(公告)号:US4040573A

    公开(公告)日:1977-08-09

    申请号:US714778

    申请日:1976-08-16

    IPC分类号: B65H67/02 B65H67/06 B65H54/26

    CPC分类号: B65H67/068 B65H2701/31

    摘要: A method and an apparatus for conveying empty bobbin tubes through a channel member which extends longitudinally along a plurality of working units of an open-end spinning, winding, yarn texturing or similar machine. The apparatus of the invention includes a transporting member which is operatively mounted on the machine so as to move in a stepwise manner along the plurality of working units of the machine. The machine includes a bobbin supply and withdrawing station opposite each working unit. The transporting member is adapted to move in a stepwise manner from one bobbin withdrawing and supply station to the next adjacent one. The apparatus further includes a channel member extending longitudinally along the plurality of working units. A plurality of empty bobbin tubes are disposed in the channel member end-to-end so as to form a column. The transporting member has a carrier member extending therefrom towards the channel member. The carrier member is adapted to push the column of empty bobbin tubes along the channel member when the transporting member moves from one bobbin supply and withdrawing station to the next one. The transporting member is also adapted to exchange a fully wound bobbin by an empty bobbin which is removed from the channel member.

    摘要翻译: 一种用于通过通道构件输送空筒管的方法和装置,所述通道构件沿着开口纺纱,卷绕,纱线织纹或类似机器的多个工作单元纵向延伸。 本发明的装置包括可操作地安装在机器上以沿着机器的多个工作单元逐步移动的传送部件。 该机器包括在每个工作单元对面的筒管供应和抽出站。 输送构件适于从一个筒管抽出和供给站逐步移动到下一个相邻的一个。 该装置还包括沿多个工作单元纵向延伸的通道构件。 多个空的筒管被配置在通道构件中,以便形成柱体。 传送构件具有从其朝向通道构件延伸的载体构件。 承载构件适于当输送构件从一个线筒供应和抽出站移动到另一个时,沿着通道构件推动空筒管的列。 输送构件还适于通过从通道构件移除的空筒管来更换完全卷绕的筒管。

    Cop tube holder for winding yarns or threads on textile machines
    7.
    发明授权
    Cop tube holder for winding yarns or threads on textile machines 失效
    用于在纺织机器上卷绕纱线或纱线的Cop管支架

    公开(公告)号:US4013242A

    公开(公告)日:1977-03-22

    申请号:US524534

    申请日:1974-11-18

    IPC分类号: B65H54/553 B65H49/00

    CPC分类号: B65H54/553 B65H2701/31

    摘要: Cop tube holder for winding yarns or threads on textile machines, and more particularly on open-end spinning machines with an automatic cop exchange, provided with a pair of bent levers adapted to swing in the holder and carrying rotatable dishes for placing the front portions of the tube while the operating pressure necessary for clamping a tube between the dishes is exerted by a spring. The bent levers are motion-coupled to each other by means of a kinematic pair.

    摘要翻译: 用于在纺织机器上卷绕纱线或纱线的Cop管夹持器,更具体地涉及具有自动管理交换机的开放式纺纱机,其具有一对弯曲杆,其适于在保持器中摆动并携带可旋转的盘以将前部 管子同时通过弹簧施加夹紧管之间所需的操作压力。 弯曲的杠杆通过运动对彼此运动耦合。

    Device for automatically spinning-in yarn
    8.
    发明授权
    Device for automatically spinning-in yarn 失效
    自动纺纱机

    公开(公告)号:US4885906A

    公开(公告)日:1989-12-12

    申请号:US249486

    申请日:1988-09-23

    IPC分类号: D01H4/50

    CPC分类号: D01H4/50

    摘要: A device for automatically spinning-in yarn in spinning units of open-end rotor spinning machines improves the process of leading the spinning-in head of the device onto the take-off tube of the spinning unit by using simple means.According to the invention the spinning-in head is attached to a swing lever by attaching means kinematically firmly in the plane of its swing motion but resiliently in the direction perpendicular to said plane, in order to allow the spinning-in head to move across the mouth of said take-off tube while being lead by a lead-on cone.

    摘要翻译: 开放式转杯纺纱机纺纱单元中自动纺纱装置改善了使用简单方法将装置的纺纱头引导到纺纱单元的牵引管上的过程。 根据本发明,旋转头通过在其摆动平面内以运动方式牢固地附接到摆动杆上,但是在垂直于所述平面的方向上弹性地附接到摆动杆,以使纺纱头能够横过 所述起飞管的嘴部由引导锥引导。

    Travelling service unit for exchanging wound bobbins
    9.
    发明授权
    Travelling service unit for exchanging wound bobbins 失效
    交换绕线筒的旅行服务单位

    公开(公告)号:US4895313A

    公开(公告)日:1990-01-23

    申请号:US249485

    申请日:1988-09-23

    IPC分类号: B65H67/04 D01H9/10

    摘要: A travelling service unit prevents full bobbins removed from bobbin holders from assuming an unwanted position when being laid onto a conveyor belt. According to the invention, the travelling service unit is provided with bobbin gripping means attached to conveying means. The latter is arranged on the frame of the travelling unit for swinging about a longitudinal pivot extending in parallel to the conveyor belt, together with the gripping means and a full bobbin, transversely to the space above the conveyor belt, by driving means.

    摘要翻译: 旅行服务单元防止从筒管架上取下的整个线轴在放置在传送带上时不会发生不必要的位置。 根据本发明,旅行维修单元设置有连接到输送装置的线轴夹持装置。 后者布置在行进单元的框架上,用于通过驱动装置横向于传送带上方的空间横向于围绕平行于传送带延伸的纵向枢轴摆动。

    Fiber separating device
    10.
    发明授权
    Fiber separating device 失效
    光纤分离装置

    公开(公告)号:US4852340A

    公开(公告)日:1989-08-01

    申请号:US156782

    申请日:1988-02-16

    IPC分类号: D01H4/36

    CPC分类号: D01H4/36

    摘要: The invention solves the problem of ejecting impurities out of a cleaning aperture in the fiber separating device of an open-end rotor spinning unit, particularly when there are various contaminations of fibrous slivers and of different kinds of textile fibers being processed. For this purpose an air flow regulator is provided in the separating device in an air supply duct communicating with the cleaning aperture. According to the invention, the air flow regulator is provided with an air directing wall near the outlet of the air supply duct and thus directs air flow into the cleaning aperture toward the fiber opening cylinder.

    摘要翻译: 本发明解决了将开口端转子纺纱单元的纤维分离装置中的清洗孔中的杂质排出的问题,特别是在处理纤维条和各种纺织纤维的各种污染物时。 为此,在与清洁孔连通的空气供应管道中的分离装置中设置有气流调节器。 根据本发明,空气流量调节器在空气供应管道的出口附近设置有空气引导壁,从而将空气流引导到清洁孔中朝向纤维开口筒。