Programmable weft insertion brake for looms
    1.
    发明授权
    Programmable weft insertion brake for looms 失效
    织机可编程纬纱制动器

    公开(公告)号:US5417251A

    公开(公告)日:1995-05-23

    申请号:US211349

    申请日:1994-06-06

    IPC分类号: B65H59/26 D03D47/34

    摘要: A jet loom with a weft yarn insertion brake contains a braking element that is movable from a position of rest, on one side of the weft yarn, across the path of the weft yarn to a braking position. An electric motor, which drives the braking element, can be actuated during each insertion process of the loom. The electric motor preferably constitutes a fast response step or d.c. motor, whose direction of displacement can be switched and whose stroke can be individually adjusted for each set position of the braking element during the insertion process. Operation of the electric motor is controlled by an electronic control device. Programming within the control device can be modified between varying insertion processes so as to adapt the timing, stroke and driving direction of the electric motor. The driving force of the electric motor is transferred to the braking element by a constrained, inelastic link connecting the two. The electric motor is controlled so that the driving force exerted on the braking element is always greater in magnitude than the greatest possible reaction force of the deflected weft yarn.

    摘要翻译: PCT No.PCT / EP92 / 02204 Sec。 371日期:1994年6月6日 102(e)日期1994年6月6日PCT提交1992年9月23日PCT公布。 公开号WO93 / 06279 日本1997年4月1日。具有纬纱插入制动器的喷气织机包含制动元件,该制动元件可以从纬纱的一侧穿过纬纱的路径移动到制动位置。 驱动制动元件的电动机可以在织机的每次插入过程中被致动。 电动机优选构成快速响应步骤或直流。 电动机,其移动方向可以切换,并且可以在插入过程期间针对制动元件的每个设定位置单独调整行程。 电动机的动作由电子控制装置控制。 可以在变化的插入处理之间改变控制装置内的编程,以适应电动机的定时,行程和驱动方向。 电动机的驱动力通过连接两者的有限的非弹性连杆传递到制动元件。 控制电动机使得施加在制动元件上的驱动力总是大于被偏转的纬纱的最大反作用力的大小。

    Method of preventing rotational vibrations in a thread storage and feed
device and a thread storage and feed device
    2.
    发明授权
    Method of preventing rotational vibrations in a thread storage and feed device and a thread storage and feed device 失效
    防止螺纹存储和进给装置和螺纹存储和进给装置中的旋转振动的方法

    公开(公告)号:US5294067A

    公开(公告)日:1994-03-15

    申请号:US867101

    申请日:1992-06-22

    IPC分类号: B65H51/22 D03D47/36 B65H51/20

    摘要: In the case of a method of holding in position a rotatably supported thread storage surface in a thread storage and feed device, in which a group of components defining the storage surface is rotatably supported on a shaft adapted to be rotated in a housing and in which a winding-on member circulates together with the shaft, whereas magnets prevent the group of components from rotating together with the shaft, a rotational vibration damping connection is temporarily established between the housing and the group of components while the shaft is rotating In a thread storage and feed device (F), which is provided with an advance member (6) adapted to be driven such that it carries out a wobbling movement, there are arranged an externally supported rotational vibration damping member (X) and an abutment (Y) which is provided on the advance member (6). When the device (F) is equipped with a stop device including a movable stop element (23), the stop element (23) constitutes the rotational vibration damping member (X, 50).

    摘要翻译: PCT No.PCT / EP90 / 01937 Sec。 371日期:1992年6月22日 102(e)日期1992年6月22日PCT 1990年10月30日PCT PCT。 公开号WO91 / 06500 日本1991年5月16日。在将可旋转支撑的螺纹存储表面保持在螺纹存储和进给装置中的方法的情况下,其中限定存储表面的一组部件可旋转地支撑在适于旋转的轴上 在壳体中,绕组构件与轴一起循环,而磁体防止组件组与轴一起旋转,在壳体和组件组之间暂时建立旋转振动阻尼连接,而轴 在螺纹存储和进给装置(F)中,其设置有适于被驱动的前进构件(6),使得其执行摆动运动,布置有外部支撑的旋转振动阻尼构件(X)和 设置在前进构件(6)上的支座(Y)。 当装置(F)配备有包括可动止动元件(23)的止动装置时,止动元件(23)构成旋转振动阻尼件(X,50)。

    Sensor activated weft tension device
    3.
    发明授权
    Sensor activated weft tension device 失效
    传感器启动纬纱张力装置

    公开(公告)号:US5462094A

    公开(公告)日:1995-10-31

    申请号:US211350

    申请日:1994-07-05

    IPC分类号: B65H59/26 B65H59/40 D03D47/34

    摘要: According to a method and apparatus for controlling the insertion process of a weft yarn, the weft yarn is temporarily exposed to a braking friction and the yarn tension is mechanically picked-up. In order to prevent the friction from having a disturbing or damaging effect on the yarn, the yarn tension is only temporarily picked-up during certain phases of the insertion process, in order to derive information from the tension curve that is useful for the control of the insertion process. In a power loom, in particular a jet, rapier or gripper shuttle loom, a tension sensor for sensing the tension of the weft yarn can be switched during insertion between its sensing position and a passive position in which it does not touch the weft yarn. Preferably, the tension sensor is integrated in the insertion brake or even forms the braking element itself.

    摘要翻译: PCT No.PCT / EP92 / 02203。 371日期:1994年7月5日 102(e)日期1994年7月5日PCT提交1992年9月23日PCT公布。 公开号WO93 / 06278 日期:1993年4月1日。根据用于控制纬纱插入过程的方法和装置,纬纱暂时暴露于制动摩擦力并且机械拾取纱线张力。 为了防止摩擦对纱线产生干扰或破坏性影响,纱线张力仅在插入过程的某些阶段期间被暂时吸收,以便从张力曲线得到可用于控制 插入过程。 在动力织机中,特别是喷气织机,剑杆织机或夹纱机织机,用于感测纬纱张力的张力传感器可以在插入其感测位置和不接触纬纱的被动位置之间切换。 优选地,张力传感器集成在插入制动器中,或者甚至形成制动元件本身。

    Adjustable pulley
    5.
    发明授权
    Adjustable pulley 失效
    可调滑轮

    公开(公告)号:US4325702A

    公开(公告)日:1982-04-20

    申请号:US87832

    申请日:1979-10-24

    IPC分类号: F16H55/54

    CPC分类号: F16H55/54

    摘要: A pulley with a variable working diameter, including two coaxial disks which are rotatable relative to one another, of which the one has a radial and the other at least one spiral-shaped guide groove. A plurality of support members with a segmentlike form are positioned between the disks and can be clamped with their front sides between the disks in different radial positions so that their radially outer peripheral areas define a polygonal path which is similar to a circle. The support members having projections engaged in the guide grooves of both disks so that relative rotation of the disks moves the support members radially for changing the respective circle diameter. Each support member--viewed in the direction of the axis of rotation of the disks--has the shape of an asymmetrical segment, preferably a circular-ring segment, with a longer and a shorter diagonal. An extension of the longer diagonal is spaced from but passes by on the same side of the axis of rotation of the disks as a perpendicular to a tangent on the spiral-shaped guide groove in the area of the support member.

    摘要翻译: 具有可变工作直径的滑轮,包括可相对于彼此旋转的两个同轴盘,其中一个具有径向和另一个至少一个螺旋形导向槽。 具有节段形状的多个支撑构件被定位在盘之间,并且可以将它们的前侧夹在盘之间的不同径向位置,使得它们的径向外周区域限定类似于圆的多边形路径。 支撑构件具有接合在两个盘的引导槽中的突起,使得盘的相对旋转径向地移动支撑构件以改变相应的圆直径。 每个支撑构件 - 沿着盘的旋转轴线的方向观察 - 具有不对称段的形状,优选为圆形环段,具有较长和较短的对角线。 较长对角线的延伸部分与盘的旋转轴线的同一侧间隔开,而与在支撑构件的区域中的螺旋形引导槽上的切线垂直。

    Thread storage and delivery apparatus
    6.
    发明授权
    Thread storage and delivery apparatus 失效
    螺纹储存和输送装置

    公开(公告)号:US4165049A

    公开(公告)日:1979-08-21

    申请号:US870017

    申请日:1978-01-16

    IPC分类号: B65H51/22 D03D47/36 B65H51/20

    CPC分类号: D03D47/361 D03D47/364

    摘要: A rotatable shaft carries a winding instrumentality whereby thread to be temporarily stored is coiled around a thread drum rotatably mounted on the shaft. Rotation of the thread drum in the direction of shaft rotation is prevented by concentric relatively fixed and movable brake elements, the fixed one secured to housing for the apparatus, the movable one coaxially secured to the thread drum. One of the brake elements has a circumferential surface from which elongated resilient fingers project, the fingers being more or less radial to said surface and having their tips normally engaged under flexing bias against a circumferential braking surface on the other brake element. The thread passes through the zone of the fingers, and the several fingers are so inclined to radials from the common center of the brake elements that the thread, or a guide tube through which it extends, can flexingly cam each finger, in turn, out of engagement with the braking surface and pass around the finger.

    摘要翻译: 旋转轴承载着一种缠绕工具,其中临时储存的螺纹卷绕在可旋转地安装在轴上的螺纹滚筒周围。 通过同心相对固定和可移动的制动元件防止螺纹滚筒在轴旋转方向上的旋转,固定的固定到设备的外壳上,可动的一个同轴地固定在螺纹滚筒上。 其中一个制动元件具有圆周表面,细长的弹性指状件从该圆周表面伸出,指状物或多或少地向所述表面径向延伸,并且其尖端通常在弯曲偏压下相对于另一个制动元件上的周向制动表面接合。 螺纹穿过手指的区域,并且多个指状物从制动元件的公共中心向径向倾斜,使得螺纹或其延伸的导向管可以挠曲地将每个手指凸出, 与制动表面接合并绕过手指。

    Weft yarn feeding device having a rotating retainer
    7.
    发明授权
    Weft yarn feeding device having a rotating retainer 失效
    具有旋转保持器的纬纱喂纱装置

    公开(公告)号:US5509450A

    公开(公告)日:1996-04-23

    申请号:US351236

    申请日:1995-01-26

    IPC分类号: B65H51/22 D03D47/36

    CPC分类号: D03D47/362 D03D47/363

    摘要: A device for feeding weft yarns to a weaving machine which includes a rotatingly driven retainer that is constructed such that it has little mass. The retainer is coupled to a rotary drive unit such that the retainer cannot move radially with respect to a storage drum axis so that, when viewed in the direction of circulation of the withdrawal point, the retainer continuously extends through a circulatory path ahead of the weft yarn. The rotary drive unit is additionally connected to a control device which controls the acceleration and deceleration of the retainer in accord with a speed profile and determines the process of weft insertion in the weaving machine.

    摘要翻译: 一种用于将纬纱喂送到织造机的装置,该装置包括旋转驱动的保持器,其构造成使其具有很小的质量。 保持器联接到旋转驱动单元,使得保持器不能相对于存储鼓轴线径向移动,使得当从取出点的循环方向观察时,保持器连续地延伸穿过纬纱之前的循环路径 纱。 旋转驱动单元另外连接到控制装置,该控制装置根据速度分布来控制保持器的加速和减速,并且确定织造机中的纬纱插入过程。

    Method for controlling a yarn storage and feeding device, and yarn
storage and feeding device
    8.
    发明授权
    Method for controlling a yarn storage and feeding device, and yarn storage and feeding device 失效
    用于控制纱线储存和进料装置的方法以及纱线储存和进料装置

    公开(公告)号:US5119998A

    公开(公告)日:1992-06-09

    申请号:US613475

    申请日:1990-10-26

    IPC分类号: B65H51/22 D03D47/36

    CPC分类号: D03D47/367

    摘要: In a method for controlling a yarn storage and feeding device, particularly for a mechanical loom, comprising a storage surface adapted to have windings of a yarn wound thereonto and withdrawn therefrom by a consumer, and a control unit for a winding drive mechanism operable to adjust the winding speed in accordance with the consumption rate and in response at least to the actual value of the number of yarn windings on the storage surface, for adjusting the actual value towards a predetermined desired value, the desired value is altered in response to at least one alteration of the winding speed to thereby obtain an optimum smallness of the yarn supply on the storage surface. In a yarn storage and feeding device for performing this method, the control unit cooperates with a reference value memory (18) for the supply of desired values (nV) varying in a predetermined manner.

    摘要翻译: PCT No.PCT / EP89 / 00241 Sec。 371 1990年10月26日第 102(e)日期1990年10月26日PCT 1989年3月8日PCT公布。 出版物WO89 / 08600 日本特开1989年9月21日。在一种用于控制纱线存放和送料装置的方法中,特别是用于机械织机的方法,包括一个适于将卷绕在其上并由消费者从其中取出的纱线的储存表面,以及用于 卷绕驱动机构,其可操作以根据消耗速率调整卷绕速度,并且至少响应于存储表面上的纱线数量的实际值,用于将实际值调整到预定的期望值,所需值 响应于卷绕速度的至少一个变化而改变,从而获得存储表面上的纱线供应的最佳小度。 在用于执行该方法的纱线存储和进给装置中,控制单元与参考值存储器(18)协作,以提供以预定方式变化的期望值(nV)。

    Apparatus for detecting a yarn movement
    9.
    发明授权
    Apparatus for detecting a yarn movement 失效
    用于检测纱线运动的装置

    公开(公告)号:US5118046A

    公开(公告)日:1992-06-02

    申请号:US415292

    申请日:1989-10-20

    摘要: An apparatus for detecting a yarn movement comprises a yarn guide unit for the sliding guidance of a moving yarn, and a converter cooperating with the yarn guide unit for generating an electric signal. With the aim of improving the signal-noise ratio of an apparatus of this type, there is provided a member mounted for movement relative to the yarn guide unit and disposed such that the yarn is guided between the member and the yarn guide unit in simultaneous contact with the member and the yarn guide unit, the member being subjected to a biasing action relative to the yarn guide unit.

    摘要翻译: PCT No.PCT / EP88 / 00192 Sec。 371日期1989年10月20日第 102(e)日期1989年10月20日PCT提交1988年3月11日PCT公布。 第WO88 / 07018号公报 日期:1988年9月22日。用于检测纱线运动的装置包括用于运动纱线的滑动引导的纱线引导单元和与导纱单元配合以产生电信号的转换器。 为了提高这种装置的信噪比,提供了一种安装成相对于导纱单元移动的构件,并且被配置成使得纱线在同时接触的构件和导纱单元之间被引导 通过构件和导纱单元,构件相对于导纱单元受到偏压作用。

    Weft yarn storing, feeding and measuring device, preferably for jet
weaving machines
    10.
    发明授权
    Weft yarn storing, feeding and measuring device, preferably for jet weaving machines 失效
    纬纱存放,送料和测量装置,优选用于喷气织机

    公开(公告)号:US4541462A

    公开(公告)日:1985-09-17

    申请号:US641899

    申请日:1984-08-08

    IPC分类号: B65H51/22 D03D47/30 D03D47/36

    摘要: This device has a stationary storage durm (2) onto which an intermediate yarn store is wound by a winding-on device (3) and from which the yarn (WY) is withdrawn spiralling around the withdrawal end of the storage drum. The device also has a plurality of yarn stopping devices (10) being arranged at angular intervals around the storage drum, said yarn stopping devices consisting of yarn stopping elements (14) and of actuator means (11) moving said stopping elements into and out of the path of the yarn being withdrawn, and an actuator control device (8) adjustable to desired yarn lengths to be withdrawn, said control device transmitting actuating signals to said plurality of yarn stopping devices. The control device (8) comprises storing means (20) for storing an information regarding the yarn stopping device actuated at the end of the next preceding yarn withdrawal cycle, and calculating means (20) for determining a selected series sequence of said yarn stopping devices to be alternately actuated and de-actuated consecutively during the yarn withdrawal cycle on the basis of said stored information and of an adjustable input information for the calculating means representing at least one significant parameter for the distance/time function of the weft yarn insertion process cycle. The calculating means (20) also determines the yarn stopping device to be kept actuated at the end of the present weft yarn withdrawal cycle at last one in said selected series sequence of alternately actuated and de-actuated yarn stopping devices, on the basis of said stored information and of an input information representing said desired yarn length.

    摘要翻译: PCT No.PCT / SE83 / 00447 Sec。 371日期1984年8月8日 102(e)日期1984年8月8日PCT提交1983年12月12日PCT公布。 公开号WO84 / 02361 日期:1984年6月21日。该装置具有静止存储durm(2),中间纱线存储器通过绕线装置(3)缠绕在其上,并且纱线(WY)从其上撤回螺旋 存储鼓。 该装置还具有围绕储存鼓的角度间隔布置的多个纱线停止装置(10),所述纱线止动装置由纱线止动元件(14)和致动器装置(11)组成,将所述止动元件移入和移出 所述纱线的取出路径以及可调节到待取出的期望纱线长度的致动器控制装置(8),所述控制装置向所述多个纱线停止装置传送致动信号。 控制装置(8)包括存储装置(20),用于存储关于在下一个先前的退纱循环结束时致动的纱线停止装置的信息;以及计算装置(20),用于确定所选纱线停止装置 在所述存储的信息的基础上在纱线取出循环期间被连续地驱动和解除致动,以及用于计算装置的可调输入信息,其代表纬纱插入处理循环的距离/时间函数的至少一个有效参数 。 计算装置(20)还基于所述的所述选择的交替致动和非致动纱线停止装置的所述选定的串联顺序,确定在当前纬纱退出循环结束时纱线停止装置保持致动的纱线停止装置 存储信息和表示所述期望纱线长度的输入信息。