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    • 13. 发明公开
    • A DEVICE FOR AUTOMATICALLY ADJUSTING WIRE TENSION DURING THE VARIOUS STEPS OF WINDING IN MACHINES FOR WINDING ELECTRICAL COILS
    • EP3336864A1
    • 2018-06-20
    • EP17206731.6
    • 2017-12-12
    • Marsilli S.p.A.
    • PARATI, Gian Battista
    • H01F41/094B65H59/38
    • A device for automatically adjusting wire tension during the various steps of winding in machines for winding electrical coils, comprising a supporting structure (2) which supports a series of elements that define a path for the wire (3) to be fed to the coil being wound. Along this path there are:
      - an element (4) for pushing and braking the wire (3);
      - a takeup arm (5) which is supported so that it can rotate by the supporting structure (2) about an axis (6) and which can rotate about the axis (6), with respect to the supporting structure (2), owing to variations in the tension of the wire (3);
      - means of detecting the tension (7) of the wire (3);
      the device in question further comprising means of detecting the angular position (8) of the takeup arm (5) about the axis (6) with respect to the supporting structure (2), such means of detecting the angular position (8) of the takeup arm (5) are functionally connected to the pushing and braking element (4) for an automatic adjustment of the degree of thrust or braking applied to the wire (3) as a function of the detected value of the rotation of the takeup arm (5) about the axis (6);
      the device comprises an actuator (9) which is connected to the takeup arm (5) and which is adapted to vary the angular position of the takeup arm (5) about the axis (6), the actuator (9) is functionally connected to the means of detecting the tension (7) of the wire (3) in order to vary the angular position of the takeup arm (5) as a function of the tension of the wire (3) detected by the means of detecting the tension (7) of the wire (3).
    • 19. 发明公开
    • YARN WINDING DEVICE
    • GARNWICKLUNGSVORRICHTUNG
    • EP2962973A1
    • 2016-01-06
    • EP15169247.2
    • 2015-05-26
    • Murata Machinery, Ltd.
    • Miura, TakahiroMurakami, TakeshiKumazawa, Tsuyoshi
    • B65H51/22B65H59/38D01H13/10
    • B65H51/22B65H59/384B65H2701/31D01H13/104
    • A yarn winding device includes a yarn storage roller (51), a tension measuring device, a yarn hooking arm (53), an arm driving section (55), and a control section (60). The yarn storage roller (51) stores a yarn on a surface by being rotatably driven by a roller driving section (52). The tension measuring device measures tension of the yarn pulled out from the yarn storage roller (51). The yarn hooking arm (53) is arranged downstream in a yarn travelling direction of the yarn storage roller (51), and makes contact with the yarn to apply tension to the yarn. The arm driving section (55) rotatably drives the yarn hooking arm (53). The control section (60) feedback controls the arm driving section (55) based on a measurement result of the tension measuring device to adjust an amount of tension applied by the yarn hooking arm (53).
    • 纱线卷绕装置包括纱线存放辊(51),张力测量装置,喂纱臂(53),臂驱动部(55)和控制部(60)。 纱线存放辊(51)通过由滚筒驱动部(52)旋转驱动而将纱线存储在表面上。 张力测量装置测量从纱线存放辊(51)拉出的纱线的张力。 纱线钩臂(53)布置在纱线存放辊(51)的纱线行进方向的下游,与纱线接触以向纱线施加张力。 臂驱动部55可旋转地驱动该钩挂臂53。 控制部(60)的反馈基于张力测量装置的测量结果来控制臂驱动部(55),以调节由该挂钩臂(53)施加的张力的量。