EP2746206A2 - Procédé de perturbation d'image et dispositif d'enroulement d'une bobine croisée - Google Patents

Procédé de perturbation d'image et dispositif d'enroulement d'une bobine croisée Download PDF

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Publication number
EP2746206A2
EP2746206A2 EP13005377.0A EP13005377A EP2746206A2 EP 2746206 A2 EP2746206 A2 EP 2746206A2 EP 13005377 A EP13005377 A EP 13005377A EP 2746206 A2 EP2746206 A2 EP 2746206A2
Authority
EP
European Patent Office
Prior art keywords
drive drum
time
acceleration
cross
wound bobbin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13005377.0A
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German (de)
English (en)
Other versions
EP2746206A3 (fr
EP2746206B1 (fr
Inventor
Torsten Forche
Ralf Hoffmann
Manfred Mund
Hans-Günter Wedershoven
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Germany GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP2746206A2 publication Critical patent/EP2746206A2/fr
Publication of EP2746206A3 publication Critical patent/EP2746206A3/fr
Application granted granted Critical
Publication of EP2746206B1 publication Critical patent/EP2746206B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/46—Package drive drums
    • B65H54/48—Grooved drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method of disordering the winding of a package, which is driven by a provided with a Kehrgewinderille for thread guide drive motor by a motor, wherein in repetitive Schmstörzyklen the drive drum is accelerated and decelerated and by accelerating and decelerating the drive drum a changing slip between the drive drum and cross-wound bobbin is generated.
  • the invention further relates to a device for winding a cross-wound bobbin and for carrying out the method.
  • the apparatus comprises a drive drum having a reciprocating groove for driving a cheese and thread guide, a motor for driving the drive drum, and control means configured to energize the motor so as to repetitively accelerate the drive drum to generate a slip causing disc disturbance and is delayed.
  • the DE 195 19 542 A1 discloses a method and apparatus for preventing image windings when winding a cross-wound bobbin, which is driven by a drive drum provided with a thread guide groove for the thread guide.
  • a drive drum is also referred to as grooved drum.
  • the drive drum can be driven by an electric motor.
  • the motor exerts a moment on the drive drum and thus causes the desired acceleration.
  • For the motor to exert the required torque it is supplied with a current.
  • the motor When the engine is switched off, only the friction torque due to friction acts on the drive drum. This friction torque delays the drive drum when the engine is switched off.
  • the motor can also exert an additional braking torque in the deceleration phases.
  • the speed of the drive drum is varied between predetermined limits.
  • the engine exerts specified acceleration and braking torques.
  • the actual slip can vary greatly, as it depends not only on the engine torque, but also on the respective winding parameters.
  • Such winding parameters which influence the slip are, for example, the contact pressure, the thread tension, the waxing and the cheese diameter.
  • peripheral speed of the drive drum In order to determine the actual slip, it is necessary to know the peripheral speeds of the drive drum and cross-wound bobbin.
  • the peripheral speed of the drive drum can be easily determined from the speed of the drive drum and the known diameter of the drive drum. In the cheese, the diameter changes during the winding process, so that a determination of the peripheral speed of the measured speed is not readily possible.
  • the WO 2008/107170 A1 in particular, relates to the accurate measurement of coiling and yarn speed and suitable devices.
  • the winding speed corresponds approximately to the peripheral speed of the cross-wound bobbin.
  • the slip should be determined from the winding speed and the drum speed. To determine the slip, so additional sensors are required. It will be explained that it is thus possible to monitor the slippage between the grooved drum and the cross-wound bobbin in a targeted manner by means of a picture disturbing method. If the slip deviates from a certain target value or exceeds or falls below a certain threshold value, a warning signal can be output and / or advantageously the image disturbance can be automatically corrected by a control unit.
  • a diameter which is falsified by the slip can be calculated. From the deviation of both determined for the acceleration phase diameter, the slip can be calculated. The actual values of the slip are compared with nominal values and, in the case of deviations, one or more operating parameters of the winding device are changed as a manipulated variable for adjusting the actual values to the nominal values.
  • the duration of the acceleration phases so that on the one hand sufficient and on the other hand no too high slip occurs. This not only improves the quality of a coil due to an effective image disturbance, but also optimizes the energy consumption of the winding device.
  • Means for detecting the rotational speeds of the drive drum and cross-wound bobbin are generally required to determine the cross-coil diameter anyway.
  • the solution of DE 196 25 510 A1 does not require additional sensors.
  • the calculation of the slip, in particular the extrapolation of the actual cheese diameter during the acceleration phases, however, requires a certain amount of computation and thus proves processor performance.
  • the invention is based on the idea that the knowledge of an absolute value of the slip to set or regulate an optimum for the image disturbance slip is not required. It is sufficient to determine a size that is a measure of the slip and is independent of other influences.
  • the time measurement for detecting the time or the time period according to the present invention can be easily implemented with modern control technology.
  • the speed of the drive drum is usually specified.
  • the drive drum then moves between predetermined speed limits, that is between a lower and an upper limit. Therefore, it is already known when the maximum speed of the drive drum is reached.
  • the drive is turned off or the drive drum is with an opposite moment, so a braking torque, applied. At this time the time measurement begins.
  • the speed of the drive drum decreases immediately.
  • the cheese of the drive drum can not follow immediately, which initially has even a higher peripheral speed than the cross-wound bobbin.
  • the speed of the cheese initially continues to increase until it reaches a maximum. Only then does the speed of the cross-wound bobbin decrease following the speed of the drive drum.
  • the maximum of the speed of the cheese can be easily determined by comparing a current speed value with a previously determined speed value. If the current value is less than or equal to the previous value, the maximum is reached and the time measurement can be stopped.
  • the time of the speed reversal of the cross-wound bobbin strongly depends on the slip.
  • the greater the slip the greater the time from the beginning of the delay of the drive drum to the speed reversal of the cheese.
  • this period of time also depends strongly on other factors, in particular on the cheese diameter. It takes longer to decelerate a large cheese than a small one.
  • a second time period dependent on the spooling parameters is determined. This belongs to a functional section of the same Schmstörzyklus' and is thus performed with the same Spulparametern, in particular the same diameter. By putting both time periods into relation, these factors are compensated and the quotient depends essentially only on the slip.
  • the second period of time can likewise be easily determined since functional sections are generally initiated and terminated as a function of specific states or measured values by means of control interventions.
  • the times at which time recording has to be started and ended are known as already known.
  • a ratio is thus determined in a simple manner, which is a measure of the slip largely free of other parameters.
  • This ratio or quotient can then be compared with a reference value and thus the parameters of the next acceleration phase can be determined.
  • the reference value is independent of the winding parameters.
  • the reference value depends only from the desired image disturbance or the desired energy savings.
  • the reference value or the reference values can therefore be determined empirically with little effort. This is a one-time process because the reference values, as explained above, do not depend on the spooling parameters.
  • a motor for driving the drive drum for decelerating is applied with a braking current only for the first period of time. That is, the braking current is turned on to initiate the braking process and turned off again at the maximum of the speed of the cheese.
  • the drive drum and the cheese then run only braked by the friction moments. Prolonged application of a braking current might be counterproductive.
  • the speed of the cross-wound bobbin reverses, the peripheral speeds of the cheese and the drive drum have substantially approximated. If the drive drum continues to be actively braked, the drive drum may run away again. This unnecessarily generates friction and costs energy.
  • the engine is subjected to a predetermined current or drive torque for acceleration, and the acceleration time of the drive drum is used as the second time duration.
  • This corresponds to the length of time required by the drive drum to accelerate from a lower limit speed to an upper limit speed. Since not only the drive drum itself, but also the overlying cross-wound bobbin has to be accelerated, the acceleration time of the drive drum depends on the bobbin diameter while the acceleration current is unchanged. Both the first time period and the second time duration increase in accordance with the cheese diameter. By dividing the diameter influence can be compensated.
  • a slip-free flow time following the first time duration is used as the second time duration.
  • the flow time increases according to the diameter of the cheese.
  • the diameter compensation works analogously.
  • the sum of the acceleration time of the drive drum and the slip-free flow time subsequent to the first time duration can be used as the second time duration.
  • the duration of the entire image disturbance cycle may also be used as the second time duration.
  • the adjustment of the acceleration phase can be done by adjusting the value of the acceleration of the drive drum. This is done by adjusting the drive torque. When the drive torque or the motor current changes, the acceleration time remains dependent on the winding parameters. According to an alternative, the duration of the acceleration of the drive drum is adjusted. This can be done, for example, by adjusting the speed limits between which the drive drum is accelerated. In this case, therefore, no concrete acceleration time will be specified, but the duration of the acceleration will be adjusted indirectly. The acceleration time thus remains dependent on winding parameters. Of course, the duration and the value of the acceleration can also be adjusted by changing the speed specification. In this case, the acceleration time, as explained above, no longer depends on the Spulparametern.
  • the acceleration of the drive drum is adjusted when the quotient is greater than a first reference value and the acceleration of the drive drum is adjusted in the opposite direction when the quotient is smaller than a second reference value. In this way, a hysteresis is created and the quotient is kept in the band between the two reference values.
  • the control means of the device according to the invention are adapted to a first time period between the maximum of the rotational speed of the drive drum and the subsequent maximum of the speed of the cheese, which corresponds to a first functional portion within the Schmstörzyklus', and a second dependent on the Spulparametern time duration, the time duration another function section within an image disturbance cycle or the sum of the durations of functional sections corresponds to form a quotient of the first time duration and the second time duration and to adapt the acceleration phase of the drive drum as a function of a comparison of the quotient with at least one reference value.
  • the Fig. 1 shows a device 1 for winding a cross-wound bobbin 2. It is a part of a job of a cheese-producing textile machine. Textile machines producing such cross-wound bobbins are, for example, winding machines which wind a thread from a delivery bobbin onto the cross-wound bobbin 2, or rotor spinning machines, where a spun thread is wound directly onto a cheese.
  • the winding device comprises a creel 4 for holding the cross-wound bobbin 2.
  • the cross-wound bobbin 2 rests on a drive drum 3 with a Kehrgewinderille 9.
  • the drive drum 3 takes the cheese 2 via frictional engagement.
  • the Kehrgewinderille 9 ensures that the thread is deposited in cross-shaped thread layers on the peripheral surface.
  • the drive drum 3 is driven by the motor 7. Both are coupled directly via the shaft 13 and therefore rotate at the same speed.
  • the winding device 1 also has a controller 8.
  • the controller 8 supplies the motor 7 with electricity.
  • the current causes a defined engine torque, which is transmitted to the drive drum 3.
  • the controller 8 also evaluates the signals from the sensors 5 and 6.
  • the sensor 5 measures the speed of the cheese 2 and the sensor 6 measures the speed of the drive drum 3.
  • the sensor 6 is mounted on the motor 7, which has the same speed as the drive drum 3. Alternatively, the speed also directly to the drive drum are measured. It is also possible to determine the speed of the drive drum 3 sensorless from the electrical variables of the motor 7.
  • the Fig. 2 represents the time course of the peripheral speeds of drive drum 3 and cross-wound bobbin 2.
  • the peripheral speeds are identical in the slip-free phases. When a slip occurs, the deviation of the peripheral speeds is only slight.
  • the speeds of drive drum 3 and cross-wound bobbin 2 may differ significantly depending on the diameter of the drive drum 3 and the cheese 2.
  • the speed of the drive drum 3 is always proportional to its peripheral speed.
  • the speed of the cross-wound bobbin decreases with increasing diameter. However, the location of the extreme values, which are important in the present invention, is the same irrespective of whether the peripheral speed or the rotational speed is evaluated. This applies equally to the drive drum 3 and the cross-wound bobbin 2.
  • the image disturbance according to the invention is based on the representation of the peripheral velocities in Fig. 2 explained.
  • the described evaluations are carried out by the controller 8 and the motor 7 is acted upon by the controller 8 with the corresponding current.
  • the curve 10 represents the peripheral speed of the drive drum 3.
  • the drive drum is accelerated by a suitable engine torque.
  • the acceleration starts at time t 0 .
  • the increase in speed is linear. That is, in the acceleration phase, the engine torque is constant. But it is also possible to use a different curve. It is only important that the drive drum is accelerated.
  • the curve 11, which represents the peripheral speed of the cheese 2 follows the curve 10 only delayed.
  • the distance 12 between the curves 10 and 11 is the slip. If at time t 1, the drive drum 3 has reached a predetermined speed or a predetermined peripheral speed v 2 , the motor current is changed and the drive drum is acted upon by the motor 7 with a braking torque. Then the motor 7 is turned off. The existing friction moments ensure that the drum speed continues to decrease. In principle, it is also possible to let the drive drum 3 from the outset without additional braking current. When the rotational speed or the circumferential speed of the drive drum 3 reaches a predetermined value v 1 at time t 3 , the drive drum is accelerated again and the process is repeated.
  • the drum speed has reached the upper limit and the drive drum is decelerated or decelerated.
  • the cheese 2 can not follow the delay immediately.
  • the speed of the cheese 2 initially continues to increase. Only at the time t 2 , the speed of the cheese 2 reaches its maximum.
  • the braking current of the motor 7 is switched off at the same time t 2 . This achieves an optimal deceleration phase.
  • a quotient is formed. This quotient can be calculated by dividing the time period ⁇ t by the Duration of another functional section are formed. As such time periods, the acceleration time t 1 - t 0 , the flow time t 3 - t 2 or the Schmstörzykluszeit t 3 - t 0 come into question. It is also possible to use sums of said time periods. Thus, the time period ⁇ t can be divided by the sum of acceleration time and flow time (t 1 -t 0 ) + (t 3 -t 2 ).
  • a quotient of the type described above is used to optimally adjust the slip.
  • the quotient is compared with one or more reference values and, depending on the comparison, the acceleration phase of the drive drum is adjusted.
  • the value of the acceleration can be changed by changing the drive torque of the motor 7, that is, the motor current. Thereby, the slope of the curve 10 is changed.
  • the duration of the acceleration can be influenced by the difference ⁇ v between the speeds v 2 and v 1 .
  • the peripheral speeds of drive drum 3 and cross-wound bobbin 2 are equal. That is, at a certain time, no more slip occurs. At this time, the current diameter can be determined in a known manner from the rotational speeds of the drive drum and cross-wound bobbin.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
EP13005377.0A 2012-12-19 2013-11-15 Procédé de perturbation d'image et dispositif d'enroulement d'une bobine croisée Active EP2746206B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012024839.3A DE102012024839A1 (de) 2012-12-19 2012-12-19 Verfahren zur Bildstörung und Vorrichtung zum Wickeln einer Kreuzspule

Publications (3)

Publication Number Publication Date
EP2746206A2 true EP2746206A2 (fr) 2014-06-25
EP2746206A3 EP2746206A3 (fr) 2015-12-16
EP2746206B1 EP2746206B1 (fr) 2017-01-04

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EP13005377.0A Active EP2746206B1 (fr) 2012-12-19 2013-11-15 Procédé de perturbation d'image et dispositif d'enroulement d'une bobine croisée

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EP (1) EP2746206B1 (fr)
JP (1) JP6218592B2 (fr)
CN (1) CN103879836B (fr)
DE (1) DE102012024839A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2985251A1 (fr) * 2014-08-12 2016-02-17 Saurer Germany GmbH & Co. KG Procede et dispositif destines a eviter les enroulements d'images lors de l'enroulement d'une bobine croisee
DE102016115255A1 (de) 2016-08-17 2018-02-22 Saurer Germany Gmbh & Co. Kg Nutentrommel für eine Kreuzspulen herstellende Textilmaschine, Verfahren zur Herstellung der Nutentrommel und Textilmaschine
DE102020110579A1 (de) 2020-04-17 2021-10-21 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zum Wickeln von Kreuzspulen auf einer Spulmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013016644A1 (de) * 2013-10-05 2015-04-09 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
JP2016078995A (ja) * 2014-10-17 2016-05-16 村田機械株式会社 糸巻取装置及びパッケージ減速方法
CN106956974A (zh) * 2017-05-18 2017-07-18 响水县天盈纺织有限公司 一种色纺纱烘干收集装置
CN109748143B (zh) * 2018-10-24 2022-03-08 华东理工大学 一种电子往复式多级精密卷绕控制方法
CN109911700B (zh) * 2019-02-27 2021-06-04 上海电气集团股份有限公司 线束缠绕机驱动装置

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DE19519542A1 (de) 1994-06-29 1996-01-04 Schlafhorst & Co W Verfahren und Vorrichtung zur Vermeidung von Bildwicklungen
DE19625510A1 (de) 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen einer Spule
WO2008107170A1 (fr) 2007-03-07 2008-09-12 Vienco Gmbh Procédé et dispositif de contrôle et d'optimisation d'un processus de bobinage

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DE3703869C2 (de) * 1987-02-07 1996-12-12 Schlafhorst & Co W Verfahren zum Überwachen und/oder Steuern des Spulvorgangs und Spulstelle zum Ausführen des Verfahrens
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IT1276739B1 (it) * 1994-06-29 1997-11-03 Schlafhorst & Co W Procedimento e dispositivo per evitare avvolgimenti irregolari
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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
DE19519542A1 (de) 1994-06-29 1996-01-04 Schlafhorst & Co W Verfahren und Vorrichtung zur Vermeidung von Bildwicklungen
DE19625510A1 (de) 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen einer Spule
WO2008107170A1 (fr) 2007-03-07 2008-09-12 Vienco Gmbh Procédé et dispositif de contrôle et d'optimisation d'un processus de bobinage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2985251A1 (fr) * 2014-08-12 2016-02-17 Saurer Germany GmbH & Co. KG Procede et dispositif destines a eviter les enroulements d'images lors de l'enroulement d'une bobine croisee
CN105366428A (zh) * 2014-08-12 2016-03-02 索若德国两合股份有限公司 用于在卷绕交叉卷绕筒子时避免叠绕的方法和装置
DE102016115255A1 (de) 2016-08-17 2018-02-22 Saurer Germany Gmbh & Co. Kg Nutentrommel für eine Kreuzspulen herstellende Textilmaschine, Verfahren zur Herstellung der Nutentrommel und Textilmaschine
DE102020110579A1 (de) 2020-04-17 2021-10-21 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zum Wickeln von Kreuzspulen auf einer Spulmaschine

Also Published As

Publication number Publication date
EP2746206A3 (fr) 2015-12-16
JP2014122117A (ja) 2014-07-03
EP2746206B1 (fr) 2017-01-04
JP6218592B2 (ja) 2017-10-25
CN103879836A (zh) 2014-06-25
DE102012024839A1 (de) 2014-06-26
CN103879836B (zh) 2017-06-06

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