Oscillating mechanical device, in particular a card web comb for a
textile machine, in which oscillations are sustained by means of a
single-phase induction motor
    25.
    发明授权
    Oscillating mechanical device, in particular a card web comb for a textile machine, in which oscillations are sustained by means of a single-phase induction motor 失效
    摆动机械装置,特别是用于纺织机器的梳理网梳子,其中振荡通过单相感应电动机

    公开(公告)号:US5872440A

    公开(公告)日:1999-02-16

    申请号:US721107

    申请日:1996-09-26

    IPC分类号: D01G15/48 H02K41/06

    CPC分类号: D01G15/48

    摘要: The oscillating mechanical device comprises a shaft on which an oscillating member is mounted, and which is resiliently urged towards a middle angular equilibrium position, together with a single-phase induction motor whose rotor is coupled to the shaft so as to enable oscillations of the shaft to be sustained. According to the invention, the stator of the single-phase induction motor is fed with an alternating drive signal whose frequency is adjusted to the vicinity of the natural frequency of oscillation of the mechanical device. More particularly, the frequency of the drive signal of the stator is set to lie in the frequency range �f-0.8 Hz; f+0.1 Hz!, where f represents the natural frequency of oscillation of the mechanical device, and is preferably set to the natural frequency of oscillation of the mechanical device with a tolerance of plus or minus one-tenth of one hertz. The device is applicable to card web combs used in the textile industry.

    摘要翻译: 振荡机械装置包括一个轴,振动件安装在该轴上,并且与其转子耦合到轴的单相感应电动机一起弹性地推向中间角度平衡位置,以便能够使轴的振动 要持续下去 根据本发明,单相感应电动机的定子馈送有一个交替的驱动信号,其频率被调节到机械装置的固有振荡频率附近。 更具体地说,定子的驱动信号的频率被设定在频率范围[f-0.8Hz; f + 0.1Hz],其中f表示机械装置的固有振荡频率,并且优选地被设置为机械装置的固有振荡频率,其容限为正或负十进一赫兹。 该设备适用于纺织工业中使用的卡片梳棉梳。

    Regulating method and system for producing a uniform sliver in a carding
machine
    26.
    发明授权
    Regulating method and system for producing a uniform sliver in a carding machine 失效
    在梳理机中制作均匀纱条的调节方法和系统

    公开(公告)号:US4497086A

    公开(公告)日:1985-02-05

    申请号:US437163

    申请日:1982-10-27

    CPC分类号: D01G23/06 D01G15/36

    摘要: A regulating apparatus for obtaining a uniform sliver delivered by a carding machine includes an rpm setter connected to a roller drive of the carding machine for determining an operational speed for the drive, a signal generator for producing a first signal as a function of actual properties of the sliver and a PI-regulator having a component determining a regulating time constant. The PI-regulator is connected to the signal generator for receiving the first signal and for generating a second, regulating signal. Further, the PI-regulator is connected to the drive for applying the second signal thereto. A regulating time constant setter is operatively connected to the component which determines a regulating time constant. The rpm setter and the regulating time constant setter cooperate for adjusting the regulating time constant setter as a function of adjustments of the rpm setter, whereby the regulating time constant of the PI-regulator is varied as a function of the rpm of the fiber-engaging roller.

    摘要翻译: 用于获得由梳理机输送的均匀条子的调节装置包括连接到梳理机的滚筒驱动器的rpm设定器,用于确定用于驱动的​​操作速度的信号发生器,用于产生第一信号作为实际特性的函数的信号发生器 纱条和PI调节器具有确定调节时间常数的分量。 PI调节器连接到信号发生器,用于接收第一信号并产生第二调节信号。 此外,PI调节器连接到用于向其施加第二信号的驱动器。 调节时间常数设定器可操作地连接到确定调节时间常数的分量。 转速调节器和调节时间常数设定器协调调节调节时间常数设定器作为转速调节器的调整的函数,由此PI调节器的调节时间常数作为光纤接合的转速的函数而变化 滚筒。