• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a winding machine for winding up Spulgut comprising at least one winding spindle, a drive unit for driving the winding spindle, one of the winding spindle upstream traversing, upstream of the traversing device, against the force of a spring displaceable dancer roll and means for determining a voltage proportional to the supplied Spulgut signal a control device for controlling the rotational speed of the winding spindle is provided, which is supplied to the voltage in the supplied Spulgut proportional signal as the actual value and which cooperates with the drive unit to maintain the tension in the Spulgut to a predetermined desired value. The device for determining a signal proportional to the voltage in the supplied material to be tumbled comprises a force measuring device which measures the spring force of the spring.
    公开号:AT517296A1
    申请号:T366/2015
    申请日:2015-06-11
    公开日:2016-12-15
    发明作者:
    申请人:Bsw Machinery Handels-Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a dishwasher for winding up Spulgut comprising at least one winding spindle, a drive unit for driving the winding spindle, a winding spindle upstream of the traversing device, a traversing upstream of the traversing device, against the force of a spring dancer roller and means for determining a voltage in the supplied Spulgut proportional signal, wherein a control device for controlling the rotational speed of the winding spindle is provided, which is supplied to the voltage in the supplied Spulgut proportional signal as an actual value and which cooperates with the drive unit to maintain the tension in the Spulgut to a predetermined desired value ,
    Such a dishwasher is described for example in EP 1975106 A2.
    When winding up a dough such as e.g. of plastic tapes, on a winding spindle arranged on a winding body, one endeavors to wind the winding material with a constant speed as possible. Accordingly, the tension in the supplied Spulgut should be as constant as possible. The problem, however, is that a constant rotational speed of the winding spindle depending on Bewicklungsgrad leads to different peripheral speeds. To compensate for increasing winding speed with increasing winding speed controls are therefore used with which the rotational speed of the winding spindle with increasing Bewicklungsgrad is reduced so that the tension prevailing in the winding material remains as similar as possible over the entire winding process.
    For tension control usually dancer assemblies are used with at least one dancer roll, which is held deflected against the force of a spring. The degree of deflection, i. the position of the dancer roller represents the tension in the winding material, wherein various mechanisms are known to generate a displacement proportional signal that is supplied to a control unit as an actual value and used in the control unit, taking into account a desired value of Spulgut voltage to cause a correction of the rotational speed of the winding spindle. In the subject matter of EP 1975106 A2, the control takes place in such a way that it is regulated to a constant position of the dancer roll. In order to be able to assign the respective dancer position to be adjusted to a specific value of the desired package material tension, the control unit must have stored characteristic curves of the package material tension as a function of the dancer position. In the case of a linear spring constant of the acting on the dancer roll or the dancer lever spring is a linear relationship between the dancer position and the SpulgutSpannung. In any case, the spring constant of the spring used must be known in order to be able to provide the characteristic curves. A disadvantage of the described type of regulation of Spulgutspannung is the high cost of the device and adjustment of the system, because the characteristics mentioned must be determined individually and deposited. In addition, deviations or changes in the spring constants may occur during operation, which cause corresponding inaccuracies in the Spulgutspannungsregelung.
    Prior art control systems (e.g., EP 1190974 A1) have disclosed control units for controlling constant package tension which relinquish the use of movable dancer rolls. The dancer roll is hereby replaced by a fixed deflection roller and the force acting on the deflection roller force, which correlates with the Spulgutspannung is determined by means of a load cell. The deflection roller is rotatably mounted for this purpose on a cantilever with a predetermined bending range, are mounted on the strain gauges. This design has the advantage that the force acting on the deflection roller, proportional to the SpulgutSpannung force can be measured directly, so that conversion operations and the associated inaccuracies can be avoided. Furthermore, the individual setting of the respectively desired desired values of the package material tension in a system comprising a multiplicity of coils by means of a central controller is thereby made considerably easier.
    A disadvantage of the design with a fixed pulley is that load cells usually have a very small measuring path, so that short-term, small voltage changes in Spulgut can be detected only insufficient. Furthermore, the cantilever provided with the strain gauges has a high natural frequency, with superpositions of the frequency of Spulgutspannungsänderungen can lead to a perturbed output signal with the natural frequency. In general, strain gauges emit restless signals, so that complex signal filtering and evaluation is usually required, which makes the control sluggish.
    An education with fixed pulley also leads to an elimination of the advantages of conventional dancer rolls, especially their ability to compensate for short-term voltage variations. Such voltage variations result from the fact that the length of the path of the Spulguts to the coil changes depending on the position of the Spulguts in the laying triangle. The laying triangle is in this case clamped by the traversing device, which comprises a traversing yarn guide, which is reciprocated during the winding of the Spulguts in the direction of the axis of rotation of the winding spindle, wherein the ratio of the speed of the reciprocating motion to the rotational speed of the winding spindle is adjusted and regulated to achieve a defined laying pattern.
    The present invention therefore aims to provide a speed control for the winding spindle, with which the above-mentioned disadvantages can be avoided.
    In order to achieve this object, the invention essentially provides for a dishwasher of the type mentioned at the outset that the device for determining a signal proportional to the voltage in the supplied dough material comprises a force measuring device which measures the spring force of the spring. The invention thus combines the use of a conventional, deflectable held dancer roll with the detection of SpulgutSpannung means of a force measurement instead of a distance measurement. Thus, the package tension will not be affected by the detection of the deflection of the dancer roll, i. taking into account the position of the dancer roll, determined, but by direct measurement of the force acting on the spring, against whose force the dancer roll is deflected, prevailing spring force. The dancer position itself is therefore not important for the control process.
    The fact that the spring force is measured directly, can be dispensed with the use of characteristics that reflect the relationship between the deflection of the dancer roll and the resulting due to the spring constant force. The inaccuracies occurring in connection with changing or deviating realized spring constants can thus be avoided.
    By using a deflectable dancer roll, the fundamental advantages of dancer rolls can be maintained, in particular the possibility of balancing or buffering short-term swirl stress changes due to unavoidable geometrical errors (laying triangle).
    The regulation of the rotational speed of the winding spindle can preferably be carried out so that the spring force represents the controlled variable. In particular, the respective desired Spulgutspannung corresponding force is specified as the desired value and the rotational speed of the winding spindle · adjusted as a control variable of the control loop so that the spring force remains constant at the desired value. In particular, the desired value should be kept constant over the entire winding process.
    A preferred embodiment provides that the dancer roller is arranged on a pivotable about a pivot axis dancer lever on which the spring acts. In particular, the dancer lever is hereby designed as a two-armed lever, on whose one lever the dancer roll is arranged and on whose other lever the spring engages.
    In order to be able to set the dishwasher to particularly low Spulgutspannungswerte, it is preferably provided that a counterweight is arranged on the other lever. This can also be done by a relief spring, which preferably has a very flat characteristic (ie is long). This spring can also be used by suitable geometric arrangement for a highly non-linear progression in relation to the dancer position, so that e.g. more dancer stroke is available in the lower (low) thread tension range.
    The measurement of the spring force is advantageously carried out so that the one end of the spring acts on the dancer lever and the other end of the spring cooperates with the force measuring device, in particular is attached thereto.
    A preferred because wear-resistant and maintenance-free design of the force measuring device provides that the force measuring device comprises a bending rod provided with bending sensors, in particular strain gauges, on which the spring acts.
    The inventive construction makes it possible in a simple manner to separately adjust the Spulgutspannung for each winding device of a multiple winder, in particular by means of a central control. In this context, the invention is preferably further developed in such a way that a plurality of winding spindles, each with associated drive unit, traversing device, dancer roller and
    Control device is provided, wherein the control means of all winding spindles are connected to a central adjusting device, and the target value of the thread tension for each control device can be specified separately and a corresponding control signal from the adjusting device to the respective control device can be fed.
    The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. 1 shows schematically a dishwasher with a winding spindle 1, on which a winding body 2 is fastened in a rotationally fixed manner, onto which the material to be wound, such as, for example, a plastic tape should be wound up. A drive unit for driving the winding spindle 1 is designated by 3. The Spulgut 4 is supplied by a charging device, not shown, and is first performed on a deflectable dancer roller 5 held. The dancer roller 5 is freely rotatably mounted at a free end of a first lever arm 6 of a two-armed dancer lever. The dancer lever is pivotally mounted about the axis of rotation 7 and has a second lever arm 8 on which a spring 9 engages. Due to the fact that the winding material 4 at least partially wraps around the dancer roller 5, the package tension brings about a force acting on the dancer roller 5 or the dancer lever in the sense of a pivoting of the dancer lever about the pivot axis 7. The corresponding opposing force is applied by acting on the second lever arm 8 spring 9, so that adjusts an equilibrium state in dependence on the Spulgutspannung. The larger the SpulgutSpannung, the stronger the spring 9 is here tense and the greater the angle of the deflection of the dancer lever. To limit the
    Auslenkungswegs two stationary stops 10 are provided so that the dancer roller 5 and the lever arm 6 can move between the 5 and 5 'or 6 and 6' designated positions.
    To measure the spring force of the spring 9, a force measuring device 11 is provided, which comprises a stationary bending rod 12, on which the spring 9 acts, and an arrangement of strain gauges 13.
    The Spulgut 4 is guided by the dancer roller 5 to a stationary guide roller 14 and wound on a bobbin upstream traverse device 15 on the bobbin 2. The traversing device 15 serves to move the winding material back and forth in order to wind the winding material over the entire width of the winding body 2.
    The strain gauges 13 deliver a signal proportional to the spring force which is fed via a signal line 16 to a control device 17. The control device 17 cooperates with the drive unit 3 via a control line 18 in order to control the rotational speed of the winding spindle 1. The control device is supplied to a desired value for the Spulgutspannung to be set or the corresponding spring force, for example, from a central controller. Depending on the actual value, which is detected by the force measuring device 11, the control device makes a suitable adaptation of the rotational speed of the drive unit 3.
    As described, the control is carried out so that it is not regulated to a constant position of the dancer roll, but to a constant spring force out. With regard to the design of the spring 9 is merely to note that the maximum force of the spring 9 is above the maximum desired Spulgutspannung to stay in the working range of the spring 9.
    权利要求:
    Claims (7)
    [1]
    claims:
    1. Dishwasher for winding up Spulgut comprising at least one winding spindle, a drive unit for driving the winding spindle, one of the winding spindle upstream traversing device, one of the traversing upstream, against the force of a spring displaceable dancer roll and means for determining a voltage in the supplied Spulgut proportional signal wherein a control device for controlling the rotational speed of the winding spindle is provided, which is supplied to the voltage in the supplied Spulgut proportional signal as an actual value and which cooperates with the drive unit to maintain the tension in the Spulgut to a predetermined desired value, characterized in that the device for determining a signal proportional to the voltage in the supplied material to be loaded comprises a force measuring device which measures the spring force of the spring.
    [2]
    2. Dishwasher according to claim 1, characterized in that the dancer roller is arranged on a pivotable about a pivot axis dancer lever on which the spring acts.
    [3]
    3. Dishwasher according to claim 2, characterized in that the dancer lever is designed as a two-armed lever, at the one lever, the dancer roll is arranged and acts on the other lever, the spring.
    [4]
    4. Dishwasher according to claim 3, characterized in that a counterweight is arranged on the other lever.
    [5]
    5. Dishwasher according to one of claims 2 to 4, characterized in that the one end of the spring acts on the dancer lever and the other end of the spring cooperates with the force measuring device, in particular attached thereto.
    [6]
    6. Dishwasher according to one of claims 1 to 5, characterized in that the force-measuring device comprises a bending strip provided with strain gauges on which the spring acts.
    [7]
    7. Dishwasher according to one of claims 1 to 6, characterized in that a plurality of winding spindles, each with associated drive unit, traversing device, dancer roller and control device is provided, wherein the control means of all winding spindles are connected to a central control device, and the desired value of Thread tension for each control device can be specified separately and a corresponding control signal from the control device to the respective control device can be fed.
    类似技术:
    公开号 | 公开日 | 专利标题
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    DE4019108A1|1991-12-19|DEVICE FOR CONTROLLING OR CONSISTENCY OF THE FREELY SELECTABLE AND SPEED-INDEPENDENT TENSILE STRENGTH OF PLASTIC, THREAD-WINDED MATERIAL FROM PLASTIC, PAPER, TEXTILE, METALS OR THE LIKE. FOR WINDING AND UNWINDING DEVICE
    EP1975106A2|2008-10-01|Yarn tension
    DE19501644A1|1996-08-01|Method and device for compensating tension forces across the width of a running web
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    CH677918A5|1991-07-15|
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    EP1190974A2|2002-03-27|Winding machine in particular for sensitive material
    EP0012235B1|1982-11-24|Device and method for winding yarns
    DE2356009C3|1982-02-04|Device for setting and measuring web tension
    DE10140645A1|2002-03-21|Sliver drawing unit gives measurements of the drafting forces on the sliver in the drafting field, directly or indirectly, to adjust the pressures applied by the upper rollers in the paired drawing rollers
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    DE102010046692B4|2016-11-03|Dummy winder for winding a web to a dock
    DE1918161C3|1978-05-11|Braking device
    DE4229750C2|1995-03-23|Device for applying a nonwoven tape to an endlessly circulating carrier web
    DE102011112001A1|2013-02-28|Two drum winder
    DE2130020B2|1975-12-18|Beam machine
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    同族专利:
    公开号 | 公开日
    WO2016197158A1|2016-12-15|
    AT517296B1|2017-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0375473B2|1986-12-04|1991-12-02|Shinko Electric Co Ltd|
    JPH04140276A|1990-10-01|1992-05-14|Mitsubishi Heavy Ind Ltd|Method of winding superconductive wire material and device therefor|
    JPH05278943A|1991-03-22|1993-10-26|Unisia Jecs Corp|Wire winding tension controller|
    JP2705860B2|1991-07-26|1998-01-28|住友金属鉱山株式会社|Extra fine wire tension measuring device|
    DE10046844A1|2000-09-20|2002-04-18|Sahm Georg Fa|Winding machine for particularly sensitive items to be wound|
    EP1975106B1|2007-03-26|2012-07-18|Lunatone Industrielle Elektronik GmbH|Yarn tension|
    DE102008032643B3|2008-07-10|2009-12-24|Georg Sahm Gmbh & Co. Kg|Fadenumlenkeinheit for a winder|
    WO2011145415A1|2010-05-21|2011-11-24|株式会社島精機製作所|Thread supply system|
    DE202014007955U1|2014-10-01|2014-11-17|Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG|Winding device and its use for producing a thread package|CN108016943A|2017-11-24|2018-05-11|苏州金钜松机电有限公司|A kind of filament control system of stretching-machine|
    CN108002124A|2017-11-24|2018-05-08|苏州金钜松机电有限公司|A kind of thin line detection device of stretching-machine|
    CN111646303B|2020-06-10|2021-12-07|国网北京市电力公司|Cable stretching device for power grid construction|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA366/2015A|AT517296B1|2015-06-11|2015-06-11|Winding machine for winding up winding material|ATA366/2015A| AT517296B1|2015-06-11|2015-06-11|Winding machine for winding up winding material|
    PCT/AT2016/000038| WO2016197158A1|2015-06-11|2016-04-21|Winding machine for winding material to be wound|
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