Method and apparatus for determining the starting time of the weft
insertion following a speed change of the main drive of a jet loom
    1.
    发明授权
    Method and apparatus for determining the starting time of the weft insertion following a speed change of the main drive of a jet loom 失效
    用于确定喷气织机的主驱动器的速度变化之后的纬纱插入的开始时间的方法和装置

    公开(公告)号:US6148872A

    公开(公告)日:2000-11-21

    申请号:US535955

    申请日:2000-03-27

    IPC分类号: D03D47/30 D03D51/00

    CPC分类号: D03D51/007

    摘要: The starting time of a weft thread insertion in a jet loom is automatically adapted to a change in the speed of the main loom drive shaft, in order to assure that the leading end of the weft thread always arrives at the same time at a weft stop motion device at an exit end of a weft insertion channel through the loom shed. For this purpose, the starting time of the weft insertion is advanced when the loom drive shaft rpm is increased and delayed when the rpm is decreased. The advance or delay has reference to a weaving cycle that begins with the opening of a shed and ends when the shed is fully closed. The flight time .DELTA.t.sub.F of a weft thread through the shed is constant. The adaptation is performed in response to measuring the rotational drive shaft angle .alpha..sub.AR at which a weft thread arrives at the weft stop motion device and determining the starting time in such a way that the weft arrival time (t.sub.2, t.sub.4, t.sub.6) always takes place at substantially the same rotational drive shaft angle .alpha..sub.AR.

    摘要翻译: 纬纱插入喷气织机的开始时间自动适应于主织机驱动轴的速度变化,以确保纬纱的前端在纬纱停止时始终到达同一时间 运动装置在纬纱插入通道的出口端通过织布机棚。 为此,当转速降低时织机驱动轴转速增加并延迟时,引纬的开始时间将提前。 提前或延迟参考了从开口开始的织造周期,并且当棚子完全关闭时结束。 通过梭口的纬纱的飞行时间DELTA tF是常数。 响应于测量纬纱到达纬纱停止运动装置的旋转驱动轴角度αAR而执行适应,并且确定起始时间,使得纬纱到达时间(t2,t4,t6)总是采用 位于基本相同的旋转驱动轴角度αAR。

    Method for monitoring the operation of an electromagnet in a weft prewinder of a weaving loom
    2.
    发明授权
    Method for monitoring the operation of an electromagnet in a weft prewinder of a weaving loom 失效
    用于监视编织机纬纱预卷绕器中电磁铁操作的方法

    公开(公告)号:US06176272B1

    公开(公告)日:2001-01-23

    申请号:US09324243

    申请日:1999-06-02

    IPC分类号: D03D4736

    CPC分类号: D03D47/363

    摘要: An electromagnet exhibits in its energization curve (I=f(t)) a characteristic feature or indicator, for example, in the form of a dip (1′, 2′) in the energization current. This indicator is used to control the operation of the magnet, for example, to synchronize its operation with that of another magnet. In a loom the operation of a weft stop magnet positioned next to a weft prewinder may be synchronized with the operation of a solenoid driving a valve that supplies air to the main weft insertion nozzle and/or relay nozzles. A magnet may also be controlled with reference to rated operation values so that its actual operation value coincides with the rated value or values or at least is maintained within a permissible tolerance range of rated values. The control takes place in closed loop fashion, for example, through the main loom control.

    摘要翻译: 电磁体在其通电曲线(I = f(t))中表现出特征特征或指示器,例如在通电电流中以倾斜(1',2')的形式。 该指示器用于控制磁体的操作,例如使其操作与另一磁体的操作同步。 在织机中,位于纬纱预卷绕器旁边的纬纱止动磁体的操作可以与驱动向主纬纱插入喷嘴和/或中继喷嘴供应空气的阀的螺线管的操作同步。 也可以参照额定运行值控制磁铁,使其实际运行值与额定值或值一致,或至少保持在额定值的容许公差范围内。 控制以闭环方式进行,例如通过主机控制。

    Method for controlling weft thread transfer from empty to full bobbin
during weft insertion
    3.
    发明授权
    Method for controlling weft thread transfer from empty to full bobbin during weft insertion 失效
    在纬纱插入过程中,用于控制从空到纬纱的纬纱传送的方法

    公开(公告)号:US5303746A

    公开(公告)日:1994-04-19

    申请号:US946884

    申请日:1992-09-17

    IPC分类号: D03D47/30 D03D47/34

    摘要: A running out weft thread end is transferred from a now empty bobbin to a full bobbin during the insertion of a weft thread into the shed of an air nozzle weaving loom from several thread supply bobbins is controlled to obtain a uniform weave even when the thread supply changes from an empty bobbin to a full bobbin. The transfer of the thread is detected and the respective signal is used to temporarily interpose on in a normal thread travelling pattern, a transitional travelling pattern to eliminate disadvantageous influences that affect the weft thread insertion during the transfer of the weft thread from one thread supply to the next. The transitional travelling pattern begins during or immediately after the detection of a thread transfer taking place. The transitional travelling pattern is maintained for a time sufficient to pull a starting amount of weft thread off from the thread supply or until the thread transit time has reached a rated value. Thereafter, the normal travelling pattern controlled by the weft thread insertion program is resumed.

    摘要翻译: 在将纬纱插入空气喷嘴编织机的梭口中时,即使在螺纹供给时也可以控制多个螺纹供给筒管,从而将输出的纬纱线从现在空的筒管转移到全筒管 从空筒管到全筒管变化。 检测螺纹的传送,并且使用相应的信号临时插入正常螺纹传送模式,即过渡行进模式,以消除在将纬纱从一个螺纹供给传送到纬纱期间影响纬纱插入的不利影响 下一个。 过渡旅行模式在检测到线程传送发生之前或之后开始。 过渡行驶模式被维持一段时间,足以将线程的起始量从螺纹供给中拉出或直到螺纹通过时间达到额定值。 此后,恢复由纬纱插入程序控制的正常行驶模式。

    Nozzle control device with closed loop control circuit for an air
weaving loom
    4.
    发明授权
    Nozzle control device with closed loop control circuit for an air weaving loom 失效
    喷气控制装置,带空气编织机的闭环控制电路

    公开(公告)号:US5031672A

    公开(公告)日:1991-07-16

    申请号:US458728

    申请日:1990-01-31

    IPC分类号: D03D47/30 D03D47/34

    CPC分类号: D03D47/304 D03D47/34

    摘要: A nozzle control device for an air weaving loom has a weft thread insertion by one or more main nozzles and a feed advance of the yarn in the air insertion channel by relay nozzles arranged one behind the other at the weaving reed. The relay nozzles are controlled in groups and in sequence in an impulse type manner in such a way that the thread tip zone is seized by the air stream and the thread is pulled through the air insertion channel. The control of the relay nozzles of an air weaving machine is accomplished in such a way that in sequential work steps substantially different types of yarns can be woven with a high quality. For this purpose the durations of air impulses supplied to the relay nozzles arranged in groups, are controlled as a function of yarn specific values modified by a currently measured air effectiveness of the respective yarn being processed.

    摘要翻译: PCT No.PCT / EP89 / 00617 Sec。 371日期1990年1月31日第 102(e)日期1990年1月31日PCT申请1989年6月1日PCT公布。 WO89 / 12122 PCT出版物 日本1989年12月14日。一种用于空气编织机的喷嘴控制装置,具有一个或多个主喷嘴的纬纱插入,并且纱线在空气插入通道中的进给进给通过在编织处一个接一个地布置的中继喷嘴 芦苇。 继电器喷嘴以脉冲式的方式分组和依次地控制,使得螺纹尖端区域被空气流捕获并且螺纹被拉过空气插入通道。 空气编织机的中继喷嘴的控制是这样实现的,即在连续的工作步骤中,可以以高质量编织基本不同类型的纱线。 为了这个目的,提供给分组成的中继喷嘴的空气脉冲的持续时间被控制为根据正在处理的各个纱线的当前测量的空气效率改变的纱线特定值的函数。

    Air supply controller for weft insertion nozzles in an air jet loom
    5.
    发明授权
    Air supply controller for weft insertion nozzles in an air jet loom 有权
    用于喷气织机中纬纱插入喷嘴的供气控制器

    公开(公告)号:US06748981B2

    公开(公告)日:2004-06-15

    申请号:US10150566

    申请日:2002-05-16

    IPC分类号: D03D4732

    CPC分类号: D03D47/3053

    摘要: An arrangement for supplying air with a controlled pressure to the main weft insertion nozzles of an air jet loom includes a single servovalve connected between a pressurized air source, an air vent, and a pressure manifold, and individual shut-off valves respectively interposed in branch lines connected from the pressure manifold to the individual nozzles. A pressure sensor measures the actual pressure provided to the manifold. An electronic controller receives a pressure control signal and controls the servovalve responsive to any difference between the pressure control signal and the actual measured pressure signal. The arrangement is simple, economical, and rapidly reacting, to avoid the need of individual throttle valves or pressure regulators for the individual nozzles.

    摘要翻译: 用于向空气喷射织机的主纬纱插入喷嘴供应具有受控压力的空气的装置包括连接在加压空气源,通气口和压力歧管之间的单个伺服阀以及分别插入分支 从压力歧管连接到各个喷嘴的管线。 压力传感器测量提供给歧管的实际压力。 电子控制器接收压力控制信号,并响应于压力控制信号和实际测量的压力信号之间的任何差异来控制伺服阀。 该装置简单,经济且快速反应,以避免单独的节流阀或单独喷嘴的压力调节器的需要。

    Weft thread monitor with control circuit to eliminate false weft defect
signals
    6.
    发明授权
    Weft thread monitor with control circuit to eliminate false weft defect signals 失效
    纬线监控器带控制电路,消除假纬缺陷信号

    公开(公告)号:US5031669A

    公开(公告)日:1991-07-16

    申请号:US456165

    申请日:1989-12-22

    IPC分类号: D03D47/38 D03D51/34

    CPC分类号: D03D47/3073 D03D51/34

    摘要: A weft thread monitor for an air weaving loom with air jets for inserting weft thread yarns of different qualities such as coarse, fine, thick or thin yarns into the loom shed, has an amplifier or comparator controlled in response to control signals which represent the different yarn qualities for providing a loom control signal which is substantially independent of these yarn qualities. The different quality yarns are pulled off from thread storage spools. The air jets of the main nozzles and of relay nozzles are controlled by an air jet insertion control forming part of a central processing unit. The weft thread monitor with its monitoring or sensor element or elements is arranged at the exit side of the air channel formed by profiled reed teeth of the air jet loom. The output of the sensor element is connected to the input of the amplifier or comparator. A uniform output signal from the amplifier or comparator is assured for all types of weft threads regardless of the yarn specific quality, by controlling the amplifier gain or the comparator threshold, for compensation in response to these yarn qualities. Thus, a very thin smooth yarn or a very thick, corase yarn will yield the same resulting output signal.

    摘要翻译: 用于空气编织机的纬纱监视器用于将不同质量的纬纱(例如粗细,细,粗或细纱线)插入织机棚中,具有响应于表示不同的控制信号而被控制的放大器或比较器 用于提供基本上与这些纱线质量无关的织机控制信号的纱线质量。 不同质量的纱线从螺纹储存卷轴上脱落。 主喷嘴和中继喷嘴的空气喷嘴由形成中央处理单元的一部分的空气喷射插入控制来控制。 纬纱监视器及其监控或传感器元件布置在由喷气织机的异型簧片形成的空气通道的出口侧。 传感器元件的输出端连接到放大器或比较器的输入端。 通过控制放大器增益或比较器阈值,对于所有类型的纬纱,无论纱线特定质量如何,均可确保来自放大器或比较器的均匀输出信号,以补偿这些纱线质量。 因此,非常薄的光滑纱线或非常厚的条纹纱线将产生相同的所得输出信号。

    Linear motor yarn-cutting device for mechanical looms
    7.
    发明授权
    Linear motor yarn-cutting device for mechanical looms 失效
    用于机械织机的直线电机切线装置

    公开(公告)号:US06450210B2

    公开(公告)日:2002-09-17

    申请号:US09811783

    申请日:2001-03-20

    IPC分类号: D03D4970

    CPC分类号: D03D49/70

    摘要: A yarn cutting device for mechanical looms, having two mutually movable blades which are arranged on a mounting surface, at least one of the blades being operable by a drive. The drive is constructed as an electrically energized linear motor, whereby a compact flat construction is achieved which has few movable parts. One of the blade carriers is a rotor of the linear motor.

    摘要翻译: 一种用于机械织机的纱线切割装置,具有布置在安装表面上的两个相互可移动的叶片,所述叶片中的至少一个可由驱动器操作。 该驱动器被构造为电力线性电动机,由此实现了具有很少可移动部件的紧凑的平面结构。 叶片载体之一是线性马达的转子。

    Method of monitoring the function of a stop motion arrangement in an air
jet loom
    8.
    发明授权
    Method of monitoring the function of a stop motion arrangement in an air jet loom 失效
    监控喷气织机中停止运动装置功能的方法

    公开(公告)号:US6014991A

    公开(公告)日:2000-01-18

    申请号:US64043

    申请日:1998-04-21

    申请人: Dieter Teufel

    发明人: Dieter Teufel

    IPC分类号: D03D47/30 D03D51/34

    CPC分类号: D03D47/3073 D03D51/34

    摘要: In an air jet loom including a stop motion arrangement with first and second light beam sensor devices for detecting the presence of an inserted weft thread, the functionality of the sensor devices is continuously monitored. An inserted weft thread is expected to reach the first sensor device during an angular range (.alpha.1) of one rotation of the main shaft of the loom, whereupon the first sensor device emits a weft arrival signal (S1). In the event of a weft break, the weft thread reaches the second sensor device during the angular range (.alpha.1), whereupon the second sensor device emits a weft fault signal (S2). To monitor the functionality of the first sensor device, an interference signal (S3) emitted thereby during a second angular range (.alpha.2) not corresponding to the first angular range (.alpha.1) is evaluated. To monitor the functionality of the second sensor device, its light beam is positively interrupted by a projection (12') of a machine component (12) during each weft insertion cycle as the reed beats-up the inserted weft thread. Thus, the second sensor device positively emits a test signal during each reed beat-up at a time outside of the first angular range (.alpha.1). The presence, absence or irregularities of the signals (S3) and (S4) are statistically evaluated to determine whether a loom stop is necessary.

    摘要翻译: 在包括具有用于检测插入的纬纱的存在的第一和第二光束传感器装置的停止运动装置的喷气织机中,连续地监视传感器装置的功能。 在织机的主轴的一个旋转的角度范围(α1)期间,期望插入的纬纱到达第一传感器装置,于是第一传感器装置发出纬纱到达信号(S1)。 在纬纱断裂的情况下,纬纱在角度范围(α1)期间到达第二传感器装置,于是第二传感器装置发出纬纱故障信号(S2)。 为了监视第一传感器装置的功能,评估在与第一角度范围(α1)不对应的第二角度范围(α2)期间发射的干扰信号(S3)。 为了监测第二传感器装置的功能,当每个纬纱插入循环期间,当其插入纬纱时,其光束被机器部件(12)的突起(12')正确地中断。 因此,第二传感器装置在第一角度范围(α1)之外的时间内在每个舌簧击打期间积极地发射测试信号。 对信号(S3)和(S4)的存在,不存在或不规则性进行统计学评估,以确定织机停止是否必要。

    Jet loom and method for achieving substantially identical weaving cycle times
    9.
    发明授权
    Jet loom and method for achieving substantially identical weaving cycle times 失效
    喷气织机和实现基本相同的织造周期时间的方法

    公开(公告)号:US06439271B2

    公开(公告)日:2002-08-27

    申请号:US09875783

    申请日:2001-06-06

    IPC分类号: D03D4728

    CPC分类号: D03D47/306 D03D47/3033

    摘要: A valve arrangement of a loom includes valve modules held between flange plates and sharing a common inlet feeding into a common inner valve space. A valve outlet of each valve module leads to an insertion nozzle or nozzle group, and is controlled by a valve disk actuated by a piezoelectric actuator to rapidly dynamically adjust the pressure profile. A quality parameter, characteristic of the thread insertion flight time of each weft thread, is stored in a data bank and has a nominal pressure profile for achieving a nominal thread flight time allocated thereto. The actual thread flight time of each weft thread is measured and compared with the stored nominal thread flight time. A control signal responsive to the time difference is provided to the valve arrangement to control the piezoelectric actuator so as to adjust the pressure and/or the quantity of the pressure medium provided through the valve module to the connected insertion nozzle. Alternatively, the control signal is provided to the main loom rotational drive to adjust the rotational speed of the loom.

    摘要翻译: 织机的阀门装置包括保持在凸缘板之间并且共用共同的入口进入公共内部阀空间的阀模块。 每个阀模块的阀出口通向插入喷嘴或喷嘴组,由压电致动器驱动的阀盘控制,以快速动态调节压力分布。 每个纬纱的螺纹插入飞行时间的特性的质量参数存储在数据库中,并且具有用于实现分配给其的公称螺纹飞行时间的标称压力分布。 测量每个纬纱的实际螺纹飞行时间,并与存储的标称螺纹飞行时间进行比较。 响应于时间差的控制信号被提供给阀装置以控制压电致动器,以便将通过阀模块提供的压力介质的压力和/或数量调节到连接的插入喷嘴。 或者,控制信号被提供到主织机旋转驱动器以调节织机的转速。

    Method for monitoring the proper functioning of electromagnetic air
valves in pneumatic looms
    10.
    发明授权
    Method for monitoring the proper functioning of electromagnetic air valves in pneumatic looms 失效
    用于监测气动织机中电磁气门的适当功能的方法

    公开(公告)号:US5787937A

    公开(公告)日:1998-08-04

    申请号:US810740

    申请日:1997-01-24

    申请人: Dieter Teufel

    发明人: Dieter Teufel

    IPC分类号: D03D47/30 D03D51/18 D03D51/44

    摘要: A method for monitoring the functional reliability of magnetic valves in pneumatically operated systems of an air jet loom, such as the valves for the relay nozzles, allows the failure of such a valve to be quickly detected and corrected. The characteristic progression curve (2) of the valve actuation current (I) as a function of time (t) is monitored for each magnetic valve to detect and evaluate the occurrence, relative timing, and magnitude of a characteristic feature (3), such as a current dip (3), in the increasing portion (2a) of the current progression curve (2). If the characteristic feature (3) is completely missing, or deviates in time or magnitude outside of a tolerance range relative to corresponding nominal values, then a corresponding fault signal is triggered or the weaving process is interrupted. Alternatively, the time of initiating the actuation signal for the respective valve is shifted to bring the actual operation of the valve back into the acceptable tolerance range.

    摘要翻译: 用于监测喷气织机的气动操作系统中的电磁阀的功能可靠性的方法,例如用于继电器喷嘴的阀,可以快速检测和校正这种阀的故障。 监测作为时间(t)的函数的阀门致动电流(I)的特征进展曲线(2),以检测和评估特征(3)的出现,相对定时和幅度,例如 作为当前浸渍(3),在当前进展曲线(2)的增加部分(2a)中。 如果特征特征(3)完全丢失,或相对于相应的标称值在公差范围之外的时间或幅度偏离,则相应的故障信号被触发或织造过程被中断。 或者,启动用于各个阀的致动信号的时间被移动以使阀的实际操作回到可接受的公差范围内。