EP2468670B1 - Method for operating a winding machine and winding machine - Google Patents

Method for operating a winding machine and winding machine Download PDF

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Publication number
EP2468670B1
EP2468670B1 EP20110009261 EP11009261A EP2468670B1 EP 2468670 B1 EP2468670 B1 EP 2468670B1 EP 20110009261 EP20110009261 EP 20110009261 EP 11009261 A EP11009261 A EP 11009261A EP 2468670 B1 EP2468670 B1 EP 2468670B1
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EP
European Patent Office
Prior art keywords
thread
sensor
thread tension
failure
tension
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Not-in-force
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EP20110009261
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German (de)
French (fr)
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EP2468670A2 (en
EP2468670A3 (en
Inventor
Michael Iding
Helmut Kohlen
Hans-Günter Wedershoven
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Germany GmbH and Co KG
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Publication of EP2468670A2 publication Critical patent/EP2468670A2/en
Publication of EP2468670A3 publication Critical patent/EP2468670A3/en
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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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/385—Regulating winding speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • 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 invention relates to a method for operating a winding machine and a winding machine with a plurality of workstations, each of which wind a thread from a spinning cop to a cross-wound bobbin, wherein in the course of the thread in each case a sensor which measures a thread tension representing size, and a thread tensioner thread tensioning means are arranged and the thread tension is controlled by comparing the measured magnitude representing the thread tension with a target value of the thread tension representative quantity and depending on the comparison, an adjusting signal for the thread tension adjusting thread tensioner is generated in which a failure of the sensor is detected and then the thread tension is controlled.
  • the yarn tension or the thread tension can be controlled or regulated.
  • no sensor is required and the thread tensioner, for example, a constant control signal can be specified.
  • a sensor is required which measures a size representing the thread tension.
  • thread tension sensors Common are so-called thread tension sensors.
  • the setting as to whether the thread tension is to be regulated or controlled can be specified by the operator. It makes sense to specify such settings for one game. A lot is formed by such jobs on which the same yarns are wound on cheeses with identical properties.
  • the operator can also specify a control if a yarn tensile force sensor is present. In this case, the yarn tension sensor is deactivated or at least the measured values are not used by the control unit.
  • the pattern wrapper can not be used any further since the wound yarn was inevitably damaged by the tension sensor. If necessary, yarn other than the one to be processed later must be used for the pattern winding if thread breakage is frequently caused by contact with the tension sensor. The need to make a pattern wrapper also leads to productivity losses. Such a solution makes only among the special, in the JP 2009-242097 A described, circumstances sense.
  • the thread tension increases without a corresponding influence.
  • the thread tension can be regulated in the manner described above by means of a thread tensioner.
  • the tensioner pressure is then reduced according to the Abspul myselfen increase in the thread tension.
  • the thread tension can also be influenced by the winding speed. For this reason it is for example from the DE 37 33 597 A1 It is known to control the winding speed as a function of the amount of residual thread on the spinning cop. Such a control of the winding speed can be done alternatively or in addition to the control of the thread tension by means of a thread tensioner.
  • the thread tensioner With a control of the thread tension, it is also possible to change the winding speed only when compliance with the predetermined thread tension by means of the thread tensioner is no longer possible. With decreasing remaining thread length on the spinning cop, the thread tension would increase without further influence. Therefore, at the beginning of the Kopsappel the thread tensioner will exert a stronger pressure and lower the pressure in the course of Kopsappel. It is possible that the thread tensioner comes to the point where a further reduction of the pressure is no longer possible. This means that the thread tension would increase. To prevent this, you can lower the winding speed. Preferably, the speed is lowered gradually. In the first step, the speed is reduced by a predetermined amount, the thread tension decreases and the thread tensioner must increase its pressure again so that the thread tension remains constant. The thread tension can now be controlled again by means of a thread tension sensor and a thread tensioner. Only when the pressure of the thread tensioner has fallen back to a minimum value, in a second step, the winding speed is further lowered.
  • a variable representing the residual thread length on the spinning cops is detected; depending on the residual thread length on the spinning cops, empirical values for the actuating signal are determined from at least one actuating signal detected during winding with controlled thread tension and controlled by the thread tensioner for control of the thread tension in case of failure of a sensor, the previously determined empirical values as a function of the residual thread length on the spinning cop used as a control signal.
  • the operation of a workstation whose sensor has failed or is disturbed can be ensured.
  • the quality of the substitute values used in the event of sensor failure is guaranteed.
  • a high productivity of the winder is ensured.
  • the actuating signal of the thread tensioner of the affected workstation can be individually adjusted depending on the respective state at the workstation even if the sensor fails. The quality of the wound cheese is thus ensured even with a longer failure of a sensor continues.
  • control signals of several work stations are recorded to determine the empirical values, the quality of the substitute values is further improved. In the optimal case, the control signals of all workplaces in operation are recorded.
  • the threads of spinning cops are unwound and the unwound from the spinning cords thread length is used as the amount of residual thread on the Spinnkops representing size.
  • the amount of residual thread itself is difficult to determine during the winding operation.
  • the total amount of thread on the spinning cop is frequently known anyway from the upstream process, namely the production on a ring spinning machine, or can easily be determined, for example, on the basis of the cop weight and the specific thread weight.
  • To determine the withdrawn thread length simple measuring methods are known. As long as the spinning cops used have the same amount of thread, the withdrawn thread length can be used directly as a reference size. A conversion of the unwound thread length in the amount of residual thread is not required.
  • the empirical values which are used to control the thread tension in the event of failure of the sensor of a workstation are determined from the control signal detected during the unwinding of at least one spinning cop of this workstation before the failure of the sensor.
  • the empirical values that are used to control the thread tension in the event of a failure of the sensor of a workstation can be determined from the control signal detected during the unwinding of the last spinning cop of this workstation before the failure of the sensor.
  • the empirical values which are used to control the thread tension in the event of a failure of the sensor of a workstation represent average values of the control signals of a plurality of spin cops uncoiled on this workstation.
  • the empirical values which are used to control the thread tension in the event of failure of the sensor of a workstation are mean values of the control signals of workstations of the same lot.
  • the empirical values that are used to control the thread tension in the event of a failure of the sensor of a workstation can be mean values of all detected control signals of the work stations of the same batch.
  • the empirical values that are used to control the thread tension in case of failure of the sensor of a job average values of the control signals detected when unwinding the last cops on several jobs of the lot.
  • the failure of a sensor is displayed. This informs the operator and can initiate measures to remedy the failure.
  • the winding speed is set in dependence on the setting of the thread tensioner, it is advantageous to acquire experience values for the winding speed during the winding with controlled thread tension as a function of the remaining thread length on the spinning heads a failure of a yarn tension sensor to use the previously determined empirical values for the winding speed in addition to the actuating signal for the tensioner as a function of the remaining thread length for setting the winding speed. Otherwise there is a risk that the empirical values used for the setting signal of the thread tensioner do not match the respective winding speed.
  • a winder for carrying out the method according to the invention with a plurality of jobs which are each designed to wind a thread from a spinning cop to a cross-wound bobbin, further proposed, wherein in the course of the thread each having a sensor for measuring a yarn tension representing Size and a thread tensioner, which gives the yarn a thread tension, are provided and control means for controlling the thread tension, which are adapted to compare the yarn tension representing measured size with a target value of the yarn tension representing size and in dependence on the comparison To generate control signal for the thread tensioner for adjusting the thread tension, wherein the control means are adapted to control the thread tension in case of failure of the sensor.
  • control means for detecting a variable representing the residual thread length on the spinning cops, for determining empirical values for the actuating signal as a function of the size representing the remaining thread length on the spinning cops from at least one control signal detected during winding with controlled thread tension and if a sensor fails Use of at least a part of the empirical values as a function of the size representing the residual thread length on the spinning cop for controlling the thread tension for the thread tensioner as a control signal.
  • control means comprise a workstation controller and / or a central control unit.
  • control of the thread tension and the detection of the control signals to determine the empirical values by means of a workstation control of the respective job.
  • the determination of the empirical values advantageously takes place by means of the workstation control or a central control unit.
  • the Fig. 1 shows a winding machine 1 with a plurality of jobs 2, which are arranged between the end frames 55, 56 of the winder 1.
  • the winding machine has a central control unit 50, which is connected via a bus system 60 to the workstation controls 40.
  • the central control unit has a keyboard 52 and a display 51 for operation and display.
  • Fig. 2 is shown in side view schematically a job 2 during the winding process.
  • Original bobbins usually produced on ring spinning machines spinning cops 9, which have relatively little yarn material, rewound to large-volume cheeses 11.
  • the finished cheeses 11 are then transferred by means of an automatically operating service unit 57, such as a cheese changer, on a machine-spooled cross-bobbin transport device 21 and transported to a machine loading side arranged Spulenverladestation or the like.
  • an automatically operating service unit 57 such as a cheese changer
  • Such winding machines 1 are also equipped either with a round magazine, can be stored in the spinning cops, or the automatic packages have a logistics device in the form of a bobbin and tube transport system 3.
  • a bobbin and tube transport system 3 then run spinning cops 9 and empty tubes 34, which are arranged in a vertical orientation on transport plates 8.
  • the reversible drivable storage section 5 one of the leading to the jobs 2 transverse transport sections 6 and the sleeve return path 7 are shown.
  • the delivered spinning cops 9 are thereby initially positioned in an unwinding position 10, which is located in the region of the transverse transport sections 6 at the work stations 2, and then rewound.
  • the individual jobs 2 have for this purpose, as is well known and therefore only hinted at different Fadenüberwachungs- and treatment facilities that not only ensure that the spinning cops 9 can be rewound to bulky packages 11, but also ensure that the thread 30th is monitored for thread defects during the rewinding process and detected thread defects are cleared out.
  • Each work station 2 has a workstation control 40, which via the only indicated control lines with the thread monitoring and treatment facilities is connected and connected via the bus system 60 to the central control unit 50 and the control device 58 of the service unit 57.
  • the work stations 2 each have a winding device 24, which has a creel 18, which is movably mounted about a pivot axis 19 and is equipped with a bobbin drive device 26 and a thread-switching device 28.
  • the cheese 11 is located during the winding process with its surface on a drive roller 26 and is carried along by this frictional engagement.
  • the drive roller 26 is acted upon via a variable speed, reversible (not shown) drive means.
  • the traversing of the thread 30 during emergence onto the cross-wound bobbin 11 takes place by means of a thread-changing device 28, which has a finger thread guide 29 in the present exemplary embodiment.
  • the workstation 2 furthermore has a thread connecting device, preferably a pneumatically operated splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a paraffining device 16.
  • a thread connecting device preferably a pneumatically operated splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a paraffining device 16.
  • the job 2 is equipped with a suction nozzle 12 and a gripper tube 25, both defined are acted upon by negative pressure.
  • the suction nozzle 12 and the gripper tube 25 are connected to a machine-length vacuum crossbar 32, which in turn is in communication with a vacuum source 33.
  • a thread catching nozzle 23 which is arranged offset somewhat rearwardly with respect to the thread running path, is positioned so that the thread 30 runs in front of its mouth 42 during the winding process.
  • the thread-catching nozzle 23 is likewise connected to the vacuum cross-member 32 via an air switch 27.
  • the air switch 27 in this case has a connecting piece 35 for the thread catching nozzle 23 and a relatively voluminous discharge port 36, the mouth of which is hermetically sealed during the regular winding operation by the suction nozzle 12 positioned in the waiting position P.
  • An opening of the discharge nozzle 36 by pivoting the suction nozzle 12 ensures that the upcoming at the thread catching nozzle 23 negative pressure collapses.
  • the thread tension is regulated at each workstation.
  • This regulation is in Fig. 3 schematically illustrated by a block diagram.
  • a desired value v is specified for the yarn tension. This can be specified by the operator, for example, at the central control unit 50 for a batch and transmitted by means of the bus system 60 to the workstation controls 40 of the jobs belonging to this lot 2.
  • the actual value y of the yarn tension is measured by means of the yarn tension sensor 20. In order to compare the setpoint value v and the actual value y, the difference e between both variables is determined. For this purpose, the measured actual value y applied with a negative sign and the desired value v are supplied to the adder 48.
  • the thus determined difference e is the input signal for a controller 45, which then provides the actuating signal u for the thread tensioner 14.
  • the controller 45 and the comparator with the adder 48 is in the present embodiment, a part of the workstation control 40. In principle, it is also possible that the control in the central control unit is realized.
  • the thread tensioner 14 in the block diagram of Fig. 3 downstream block 46 is referred to in the control technology as a route.
  • the route 46 includes the parts of the job that cause a certain thread tension or thread tension on the current thread under the influence of the thread tensioner.
  • the setpoint value or the measured actual value can also be the thread tension instead of the thread tension. If necessary, the thread tension must be converted into a thread tension or vice versa.
  • the Fig. 4 illustrates the effect of the regulation described above.
  • the control signal u for the thread tensioner 14 on one side and the desired value v or the actual value y of the yarn tension on the other side over time or over the unwound from the spinning cop yarn length is plotted. It is assumed here by a constant winding speed, so that the unwound thread length of time is proportional. Furthermore, it is assumed that an ideal control without stationary control deviation, so that the setpoint v and the actual value y are identical. Furthermore, the actuating signal u is proportional to the tensioning pressure exerted by the thread tensioner.
  • the winding speed need not, as assumed above, remain constant over the entire Kopsumble. If the thread tensioner can not lower the pressure any further, the winding speed is gradually reduced to one again To allow control of the thread tension by means of the thread tensioner as an actuator. In the block diagram of Fig. 3 the influence of the change in the winding speed is symbolized by the disturbance d.
  • the control signals u of the thread tensioner 14 are detected and stored as a function of the length of the thread unwound from the respective spinning cop.
  • the respective winding speed is also stored.
  • These values can be stored in a memory of the workstation control or in a memory of the central control unit in a power-failure-proof manner.
  • the saving can take place, for example, in the form of a table. This table then assigns to a unwound thread length a value for the control signal u and a winding speed.
  • the unwound thread length corresponds to a certain amount of residual thread on the spinning cop.
  • the unwound thread length can be determined, for example, in a manner known per se from the revolutions of the driven roller 26.
  • the revolutions of the drive roller 26 are detected and stored in a counter. This must then be reset every time the spinning head is changed. The number of revolutions is then proportional to the unwound thread length. This value can be assigned directly to the respective value of the control signal. A conversion into a thread length based on the drive roller diameter is not required.
  • the values thus determined and stored for the actuating signal already represent empirical values in the sense of the present invention. A further processing of these values may possibly lead to more specific empirical values. For this purpose, mean values of a plurality of set signal values assigned to a unwound thread length can be formed.
  • mean values of several or all of the spinning heads 9 of a batch which have been coiled on a workstation 2 can be determined and stored accordingly in a table. It is also possible to use averages of all or several jobs 2 of a lot. For this purpose, if not already done, the values recorded at work stations 2 are advantageously transmitted to the central control unit 50.
  • the mean values of all spinning cops 9 of this batch or the mean values of the respectively last spinning cops 9 of several or all winding units of this batch can be determined. These average values are then stored correspondingly in tables, wherein each value of the unwound thread length is assigned such an average value of the actuating signal.
  • Block 47 represents a memory in which the empirical values, as described above, are stored in the form of tables. In a table, a unwound thread length is assigned a value for the control signal. Depending on which empirical values are used, the memory 47 may be assigned to the workstation control 40 or the central control unit 50.
  • the control signal u determined on the basis of the length of thread unwound from the spinning cop and the table is then fed to the thread tensioner 14.
  • the winding speed is set to the value stored in the table.
  • the distance 46 forms the actual value y of the thread tension. This actual value y is close to the desired value v, although the thread tension is not controlled but controlled.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Spulmaschine und eine Spulmaschine mit einer Vielzahl von Arbeitsstellen, die jeweils einen Faden von einem Spinnkops auf eine Kreuzspule spulen, wobei im Lauf des Fadens jeweils ein Sensor, der eine die Fadenspannung repräsentierende Größe misst, und ein Fadenspanner, der dem Faden eine Fadenspannung erteilt, angeordnet sind und die Fadenspannung geregelt wird, indem die die Fadenspannung repräsentierende gemessene Größe mit einem Sollwert der die Fadenspannung repräsentierenden Größe verglichen wird und in Abhängigkeit von dem Vergleich ein Stellsignal für den Fadenspanner zur Einstellung der Fadenspannung generiert wird, wobei ein Ausfall des Sensors festgestellt und daraufhin die Fadenspannung gesteuert wird.The invention relates to a method for operating a winding machine and a winding machine with a plurality of workstations, each of which wind a thread from a spinning cop to a cross-wound bobbin, wherein in the course of the thread in each case a sensor which measures a thread tension representing size, and a thread tensioner thread tensioning means are arranged and the thread tension is controlled by comparing the measured magnitude representing the thread tension with a target value of the thread tension representative quantity and depending on the comparison, an adjusting signal for the thread tension adjusting thread tensioner is generated in which a failure of the sensor is detected and then the thread tension is controlled.

Bei bekannten Spulmaschinen kann die Fadenzugkraft beziehungsweise die Fadenspannung, das heißt, die Fadenzugkraft bezogen auf den Fadenquerschnitt, gesteuert oder geregelt werden. Bei einer Steuerung der Fadenspannung ist kein Sensor erforderlich und dem Fadenspanner kann zum Beispiel ein konstantes Stellsignal vorgegeben werden. Zur Regelung der Fadenspannung ist ein Sensor erforderlich, der eine die Fadenspannung repräsentierende Größe misst. Üblich sind sogenannte Fadenzugkraftsensoren. Die Einstellung, ob die Fadenspannung geregelt oder gesteuert werden soll, kann vom Bediener vorgegeben werden. Sinnvollerweise werden solche Einstellungen jeweils für eine Partie vorgegeben. Eine Partie wird dabei von solchen Arbeitsstellen gebildet, auf denen die gleichen Garne auf Kreuzspulen mit identischen Eigenschaften gespult werden. Prinzipiell kann der Bediener auch eine Steuerung vorgeben, wenn ein Fadenzugkraftsensor vorhanden ist. In diesem Fall wird der Fadenzugkraftsensor deaktiviert oder zumindest werden die Messwerte von der Steuereinheit nicht verwendet.In known winding machines, the yarn tension or the thread tension, that is, the yarn tension relative to the yarn cross-section, can be controlled or regulated. When controlling the thread tension no sensor is required and the thread tensioner, for example, a constant control signal can be specified. To control the thread tension, a sensor is required which measures a size representing the thread tension. Common are so-called thread tension sensors. The setting as to whether the thread tension is to be regulated or controlled can be specified by the operator. It makes sense to specify such settings for one game. A lot is formed by such jobs on which the same yarns are wound on cheeses with identical properties. In principle, the operator can also specify a control if a yarn tensile force sensor is present. In this case, the yarn tension sensor is deactivated or at least the measured values are not used by the control unit.

Aus der JP 2009-242097 A ist bekannt, dass es empfindliche Garne gibt, die durch die Berührung eines Spannungssensors beschädigt werden können. Um dennoch einen Fadenspannungsverlauf zu realisieren, der weitestgehend einer Fadenspannungsvorgabe entspricht, wird vor dem eigentlichen Spulprozess ein Spannungsvermittelungsmuster erstellt, das heißt, ein Sollverlauf für das Stellsignal eines Fadenspanners. Gemäß der zitierten Anmeldung soll die Fadenspannung mit steigendem Durchmesser der Auflaufspule reduziert werden. Deshalb wird zur Ermittlung des oben beschriebenen Musters ein Musterwickelkörper hergestellt. Bei der Herstellung dieser Musterwicklung wird dann ein Spannungssensor verwendet. Das beim Herstellen der Musterwicklung erfasste Stellsignal des Fadenspanners dient dann für eine Vielzahl von Arbeitsstellen als Spannungsvermittelungsmuster. Der Musterwickelkörper kann nicht weiter verwendet werden, da das aufgewickelte Garn zwangsläufig von dem Spannungssensor beschädigt wurde. Gegebenenfalls muss für die Musterwicklung sogar ein anderes Garn als das später zu verarbeitende verwendet werden, wenn es durch die Berührung mit dem Spannungssensor häufig zu Fadenbrüchen kommt. Die Notwendigkeit, einen Musterwickelkörper herzustellen, führt außerdem zu Produktivitätseinbußen. Eine solche Lösung macht also nur unter den besonderen, in der JP 2009-242097 A beschrieben, Umständen Sinn.From the JP 2009-242097 A It is known that there are delicate yarns that can be damaged by the contact of a voltage sensor. Nevertheless, in order to realize a yarn tension profile which largely corresponds to a yarn tension specification, a stress-transmission pattern is created before the actual winding process, that is, a desired course for the control signal of a yarn tensioner. According to the cited application, the thread tension should be reduced with increasing diameter of the package. Therefore, a pattern wound body is manufactured to find the pattern described above. In the production of this pattern winding, a voltage sensor is then used. The control signal of the thread tensioner detected during the production of the pattern winding then serves as a voltage transmission pattern for a plurality of workstations. The pattern wrapper can not be used any further since the wound yarn was inevitably damaged by the tension sensor. If necessary, yarn other than the one to be processed later must be used for the pattern winding if thread breakage is frequently caused by contact with the tension sensor. The need to make a pattern wrapper also leads to productivity losses. Such a solution makes only among the special, in the JP 2009-242097 A described, circumstances sense.

Es ist weiter bekannt, dass beim Abziehen eines Fadens von einem Spinnkops die Fadenspannung ohne eine entsprechende Einflussnahme zunimmt. Um die Fadenspannung dennoch konstant zu halten, kann die Fadenspannung in der oben beschriebenen Weise mittels eines Fadenspanners geregelt werden. Der Spannerdruck wird dann entsprechend dem abspulbedingten Anwachsen der Fadenspannung reduziert. Neben einem Fadenspanner kann die Fadenspannung auch durch die Spulgeschwindigkeit beeinflusst werden. Aus diesem Grunde ist es zum Beispiel aus der DE 37 33 597 A1 bekannt, die Spulgeschwindigkeit in Abhängigkeit von der Restfadenmenge auf dem Spinnkops zu steuern. Eine solche Steuerung der Spulgeschwindigkeit kann alternativ oder zusätzlich zu der Regelung der Fadenspannung mittels eines Fadenspanners erfolgen. Bei einer Regelung der Fadenspannung ist es auch möglich, die Spulgeschwindigkeit erst dann zu ändern, wenn die Einhaltung der vorgegeben Fadenspannung mittels des Fadenspanners nicht mehr möglich ist. Mit abnehmender Restfadenlänge auf den Spinnkops würde ohne weitere Einflussnahme die Fadenspannung steigen. Deshalb wird am Anfang der Kopsreise der Fadenspanner einen stärkeren Druck ausüben und den Druck im Laufe der Kopsreise senken. Es ist möglich, dass der Fadenspanner an den Punkt kommt, an dem eine weitere Verringerung des Druckes nicht mehr möglich ist. Das bedeutet, dass die Fadenspannung ansteigen würde. Um dies zu verhindern, kann man die Spulgeschwindigkeit senken. Vorzugsweise wird die Geschwindigkeit schrittweise abgesenkt. Im ersten Schritt wird die Geschwindigkeit um einen vorher festgelegten Anteil reduziert, die Fadenspannung sinkt und der Fadenspanner muss seinen Druck wieder erhöhen, damit die Fadenspannung konstant bleibt. Die Fadenspannung kann nun wieder mittels Fadenzugkraftsensor und Fadenspanner geregelt werden. Erst wenn der Druck des Fadenspanners wieder auf einen minimalen Wert gesunken ist, wird in einem zweiten Schritt die Spulgeschwindigkeit weiter abgesenkt.It is also known that when removing a thread from a spinning cop, the thread tension increases without a corresponding influence. In order to keep the thread tension still constant, the thread tension can be regulated in the manner described above by means of a thread tensioner. The tensioner pressure is then reduced according to the Abspulbedingten increase in the thread tension. In addition to a thread tensioner, the thread tension can also be influenced by the winding speed. For this reason it is for example from the DE 37 33 597 A1 It is known to control the winding speed as a function of the amount of residual thread on the spinning cop. Such a control of the winding speed can be done alternatively or in addition to the control of the thread tension by means of a thread tensioner. With a control of the thread tension, it is also possible to change the winding speed only when compliance with the predetermined thread tension by means of the thread tensioner is no longer possible. With decreasing remaining thread length on the spinning cop, the thread tension would increase without further influence. Therefore, at the beginning of the Kopsreise the thread tensioner will exert a stronger pressure and lower the pressure in the course of Kopsreise. It is possible that the thread tensioner comes to the point where a further reduction of the pressure is no longer possible. This means that the thread tension would increase. To prevent this, you can lower the winding speed. Preferably, the speed is lowered gradually. In the first step, the speed is reduced by a predetermined amount, the thread tension decreases and the thread tensioner must increase its pressure again so that the thread tension remains constant. The thread tension can now be controlled again by means of a thread tension sensor and a thread tensioner. Only when the pressure of the thread tensioner has fallen back to a minimum value, in a second step, the winding speed is further lowered.

In vielen Fällen ist die Einhaltung einer vorgegebenen Fadenspannung für die geforderte Qualität der Kreuzspule von großer Bedeutung, so dass die Fadenspannung wie oben beschrieben geregelt wird. In diesen Fällen ist die ordnungsgemäße Funktion des Fadenzugkraftsensors oder eines vergleichbaren Sensors von entscheidender Bedeutung. Bei Ausfall des Sensors ist eine Regelung der Fadenspannung nicht mehr möglich. Es kommt zum Stillstand der Spulmaschine oder zumindest der betroffenen Arbeitsstelle.In many cases, compliance with a predetermined yarn tension for the required quality of the cheese is of great importance, so that the thread tension is regulated as described above. In these cases, the proper function of the yarn tension sensor or a comparable sensor is of crucial importance. In case of failure of the sensor, a control of the thread tension is no longer possible. It comes to Standstill of the winder or at least the affected job.

Aus diesem Grunde wird gemäß der JP 2009-242096 A vorgeschlagen, den Messwert des Spannungssensors einer Arbeitsstelle zu speichern und bei Ausfall des Spannungssensors die Fadenspannung auf Basis des zuletzt vor dem Ausfall gespeicherten Spannungswertes zu steuern. Alternativ kann zur Steuerung der Fadenspannung auf der von dem Ausfall betroffen Arbeitsstelle ein Mittelwert von auf anderen Arbeitsstellen vor dem Ausfall erfassten Messwerten verwendet werden. Auf diese Weise wird also eine Fortführung des Betriebes der Spulmaschine auch bei Ausfall eines Sensors ermöglicht. Allerdings bleibt der Spannungsmesswert, der zur Steuerung der Fadenspannung verwendet wird, konstant unabhängig davon ob der letzte Wert oder ein Mittelwert von anderen Arbeitsstellen verwendet wird, solange der Spannungssensor keine neuen Messwerte liefert. Dieses Verfahren ist also für länger andauernde und nicht unmittelbar zu behebende Ausfälle ungeeignet. Das gilt insbesondere deshalb, weil die Einflüsse, die durch das Abwickeln des Kopses entstehen, bei funktionsfähigem Sensor ganz oder teilweise durch die Fadenspannungsregelung ausgeglichen werden. Bei einer Steuerung mit einem konstanten Wert ist dies nicht mehr möglich.For this reason, according to the JP 2009-242096 A proposed to store the measured value of the voltage sensor of a job and to control the thread tension on the basis of the last stored before the failure voltage value in case of failure of the voltage sensor. Alternatively, to control the thread tension on the work site affected by the failure, an average of readings taken at other work sites prior to failure may be used. In this way, a continuation of the operation of the winder is made possible even in case of failure of a sensor. However, the voltage reading used to control the thread tension remains constant regardless of whether the last value or an average of other jobs is used, as long as the tension sensor does not provide new readings. This method is therefore unsuitable for longer-lasting and not immediately correctable failures. This is especially true because the influences that arise from the unwinding of the cop, be fully or partially compensated for by the thread tension control with a functioning sensor. With a controller with a constant value, this is no longer possible.

Es ist daher die Aufgabe der vorliegenden Erfindung, das Verhalten einer Spulmaschine, bei der die Fadenspannung an den einzelnen Arbeitsstellen geregelt wird, bei Ausfall eines Sensors, der eine die Fadenspannung repräsentierende Größe misst, zu verbessern.It is therefore the object of the present invention to improve the behavior of a winding machine in which the thread tension is regulated at the individual workstations in the event of failure of a sensor which measures a variable representing the thread tension.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Verfahrensanspruches 1 sowie des Vorrichtungsanspruches 12 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.The object is achieved by the characterizing features of the method claim 1 and the device claim 12. Advantageous developments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe wird eine die Restfadenlänge auf den Spinnkopsen repräsentierende Größe erfasst, in Abhängigkeit von der Restfadenlänge auf den Spinnkopsen werden aus mindestens einem während des Spulens mit geregelter Fadenspannung erfassten Stellsignalen Erfahrungswerte für das Stellsignal ermittelt und für die Steuerung der Fadenspannung durch den Fadenspanner werden bei Ausfall eines Sensors die zuvor ermittelten Erfahrungswerte in Abhängigkeit von der Restfadenlänge auf dem Spinnkops als Stellsignal verwendet.In order to solve the problem, a variable representing the residual thread length on the spinning cops is detected; depending on the residual thread length on the spinning cops, empirical values for the actuating signal are determined from at least one actuating signal detected during winding with controlled thread tension and controlled by the thread tensioner for control of the thread tension in case of failure of a sensor, the previously determined empirical values as a function of the residual thread length on the spinning cop used as a control signal.

Durch das erfindungsgemäße Verfahren kann der Betrieb einer Arbeitsstelle, deren Sensor ausgefallen beziehungsweise gestört ist, sichergestellt werden. Durch die Ermittlung von Erfahrungswerten, die betriebsmäßigen Spulbedingungen entstammen, wird zum einen die Qualität der bei Ausfall des Sensors verwendeten Ersatzwerte garantiert. Zum anderen wird eine hohe Produktivität der Spulmaschine sichergestellt. Es kommt weder bei einem Ausfall eines Sensors zu einem Produktionsstillstand, noch muss zur Ermittlung der Erfahrungswerte die Produktion unterbrochen werden. Durch die Ermittlung der Erfahrungswerte in Abhängigkeit von der Restfadenmenge auf dem Spinnkops kann auch bei Ausfall des Sensors das Stellsignal des Fadenspanners der betroffenen Arbeitstelle individuell in Abhängigkeit von dem jeweiligen Zustand an der Arbeitsstelle angepasst werden. Die Qualität der gewickelten Kreuzspule wird damit auch bei einem längeren Ausfall eines Sensors weiterhin sichergestellt.By means of the method according to the invention, the operation of a workstation whose sensor has failed or is disturbed can be ensured. By determining empirical values derived from operational winding conditions, on the one hand, the quality of the substitute values used in the event of sensor failure is guaranteed. On the other hand, a high productivity of the winder is ensured. Neither a failure of a sensor leads to a production stoppage, nor does the production have to be interrupted to determine the empirical values. By determining the empirical values as a function of the amount of residual thread on the spinning cop, the actuating signal of the thread tensioner of the affected workstation can be individually adjusted depending on the respective state at the workstation even if the sensor fails. The quality of the wound cheese is thus ensured even with a longer failure of a sensor continues.

Wenn zur Ermittlung der Erfahrungswerte die Stellsignale mehrerer Arbeitsstellen erfasst werden, wird die Qualität der Ersatzwerte weiter verbessert. Im optimalen Fall werden die Stellsignale aller in Betrieb befindlicher Arbeitsstellen erfasst.If the control signals of several work stations are recorded to determine the empirical values, the quality of the substitute values is further improved. In the optimal case, the control signals of all workplaces in operation are recorded.

Vorteilhafterweise werden die Fäden von Spinnkopsen, deren aufgespulte Fadenlänge bekannt ist, abgespult und die von den Spinnkopsen abgespulte Fadenlänge wird als die Restfadenmenge auf dem Spinnkops repräsentierende Größe verwendet. Die Restfadenmenge selbst lässt sich während des Spulbetriebes nur schwierig bestimmen. Die Gesamtfadenmenge auf dem Spinnkops ist dagegen aus dem vorgelagerten Prozess, nämlich der Herstellung auf einer Ringspinnmaschine, häufig ohnehin bekannt oder kann leicht zum Beispiel anhand des Kopsgewichtes und des spezifischen Fadengewichtes ermittelt werden. Zur Ermittlung der abgezogenen Fadenlänge sind einfache Messverfahren bekannt. Solange die verwendeten Spinnkopse die gleichen Fadenmengen aufweisen, kann die abgezogene Fadenlänge direkt als Referenzgröße verwendet werden. Eine Umrechnung der abgespulten Fadenlänge in die Restfadenmenge ist nicht erforderlich.Advantageously, the threads of spinning cops, whose wound-up thread length is known, are unwound and the unwound from the spinning cords thread length is used as the amount of residual thread on the Spinnkops representing size. The amount of residual thread itself is difficult to determine during the winding operation. By contrast, the total amount of thread on the spinning cop is frequently known anyway from the upstream process, namely the production on a ring spinning machine, or can easily be determined, for example, on the basis of the cop weight and the specific thread weight. To determine the withdrawn thread length simple measuring methods are known. As long as the spinning cops used have the same amount of thread, the withdrawn thread length can be used directly as a reference size. A conversion of the unwound thread length in the amount of residual thread is not required.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens werden die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, aus dem während des Abspulens mindestens eines Spinnkopses dieser Arbeitsstelle vor dem Ausfall des Sensors erfassten Stellsignal ermittelt.According to a preferred embodiment of the method according to the invention, the empirical values which are used to control the thread tension in the event of failure of the sensor of a workstation are determined from the control signal detected during the unwinding of at least one spinning cop of this workstation before the failure of the sensor.

Dabei können die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, aus dem während des Abspulens des letzten Spinnkopses dieser Arbeitsstelle vor dem Ausfall des Sensors erfassten Stellsignal ermittelt werden.In this case, the empirical values that are used to control the thread tension in the event of a failure of the sensor of a workstation can be determined from the control signal detected during the unwinding of the last spinning cop of this workstation before the failure of the sensor.

Es ist auch möglich, dass die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, Mittelwerte der Stellsignale mehrerer auf dieser Arbeitsstelle abgespulter Spinnkopse darstellen.It is also possible that the empirical values which are used to control the thread tension in the event of a failure of the sensor of a workstation represent average values of the control signals of a plurality of spin cops uncoiled on this workstation.

Gemäß einer anderen bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens sind die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, Mittelwerte der Stellsignale von Arbeitsstellen der gleichen Partie.According to another preferred embodiment of the method according to the invention, the empirical values which are used to control the thread tension in the event of failure of the sensor of a workstation are mean values of the control signals of workstations of the same lot.

Die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, können Mittelwerte aller erfassten Stellsignale der Arbeitsstellen der gleichen Partie sein.The empirical values that are used to control the thread tension in the event of a failure of the sensor of a workstation can be mean values of all detected control signals of the work stations of the same batch.

Alternativ können die Erfahrungswerte, die zur Steuerung der Fadenspannung bei Ausfall des Sensors einer Arbeitsstelle verwendet werden, Mittelwerte der beim Abspulen der jeweils letzten Kopse auf mehreren Arbeitsstellen der Partie erfassten Stellsignale sein.Alternatively, the empirical values that are used to control the thread tension in case of failure of the sensor of a job, average values of the control signals detected when unwinding the last cops on several jobs of the lot.

Vorteilhafterweise wird der Ausfall eines Sensors angezeigt. Dadurch wird der Bediener informiert und kann Maßnahmen zur Behebung des Ausfalls einleiten.Advantageously, the failure of a sensor is displayed. This informs the operator and can initiate measures to remedy the failure.

Wenn, wie eingangs beschrieben, während des Spulens mit geregelter Fadenspannung die Spulgeschwindigkeit in Abhängigkeit von der Einstellung des Fadenspanners eingestellt wird, ist es vorteilhaft, während des Spulens mit geregelter Fadenspannung in Abhängigkeit von der Restfadenlänge auf den Spinnkopsen Erfahrungswerte für die Spulgeschwindigkeit zu erfassen und bei einem Ausfall eines Fadenzugkraftsensors die zuvor ermittelten Erfahrungswerte für die Spulgeschwindigkeit neben dem Stellsignal für den Spanner in Abhängigkeit von der Restfadenlänge für die Einstellung der Spulgeschwindigkeit zu verwenden. Ansonsten besteht die Gefahr, dass die verwendeten Erfahrungswerte für das Stellsignal des Fadenspanners nicht zu der jeweiligen Spulgeschwindigkeit passen.If, as described above, during winding with controlled thread tension, the winding speed is set in dependence on the setting of the thread tensioner, it is advantageous to acquire experience values for the winding speed during the winding with controlled thread tension as a function of the remaining thread length on the spinning heads a failure of a yarn tension sensor to use the previously determined empirical values for the winding speed in addition to the actuating signal for the tensioner as a function of the remaining thread length for setting the winding speed. Otherwise there is a risk that the empirical values used for the setting signal of the thread tensioner do not match the respective winding speed.

Zur Lösung der Aufgabe wird ferner eine Spulmaschine zur Durchführung des erfindungsgemäßen Verfahrens mit einer Vielzahl von Arbeitsstellen, die jeweils zum Spulen eines Faden von einem Spinnkops auf eine Kreuzspule ausgebildet sind, vorgeschlagen, wobei im Lauf des Fadens jeweils ein Sensor zur Messung einer die Fadenspannung repräsentierenden Größe und ein Fadenspanner, der dem Faden eine Fadenspannung erteilt, angeordnet sind und Steuermittel zur Regelung der Fadenspannung vorhanden sind, die dazu ausgebildet sind, die Fadenspannung repräsentierende gemessene Größe mit einem Sollwert der die Fadenspannung repräsentierenden Größe zu vergleichen und in Abhängigkeit von dem Vergleich ein Stellsignal für den Fadenspanner zur Einstellung der Fadenspannung zu generieren, wobei die Steuermittel dazu ausgebildet sind, bei Ausfall des Sensors die Fadenspannung zu steuern. Erfindungsgemäß sind die Steuermittel zur Erfassung einer die Restfadenlänge auf den Spinnkopsen repräsentierenden Größe, zur Ermittlung von Erfahrungswerte für das Stellsignal in Abhängigkeit von der die Restfadenlänge auf den Spinnkopsen repräsentierenden Größe aus mindestens einem während des Spulens mit geregelter Fadenspannung erfassten Stellsignal und bei Ausfall eines Sensors zur Verwendung zumindest eines Teils der Erfahrungswerte in Abhängigkeit von der die Restfadenlänge auf dem Spinnkops repräsentierenden Größe zur Steuerung der Fadenspannung für den Fadenspanner als Stellsignal ausgebildet.To solve the problem, a winder for carrying out the method according to the invention with a plurality of jobs, which are each designed to wind a thread from a spinning cop to a cross-wound bobbin, further proposed, wherein in the course of the thread each having a sensor for measuring a yarn tension representing Size and a thread tensioner, which gives the yarn a thread tension, are provided and control means for controlling the thread tension, which are adapted to compare the yarn tension representing measured size with a target value of the yarn tension representing size and in dependence on the comparison To generate control signal for the thread tensioner for adjusting the thread tension, wherein the control means are adapted to control the thread tension in case of failure of the sensor. According to the invention, the control means for detecting a variable representing the residual thread length on the spinning cops, for determining empirical values for the actuating signal as a function of the size representing the remaining thread length on the spinning cops from at least one control signal detected during winding with controlled thread tension and if a sensor fails Use of at least a part of the empirical values as a function of the size representing the residual thread length on the spinning cop for controlling the thread tension for the thread tensioner as a control signal.

Gemäß einer bevorzugten Ausführungsform umfassen die Steuermittel eine Arbeitsstellensteuerung und/oder eine zentrale Steuereinheit. Vorteilhafterweise erfolgt die Regelung der Fadenspannung und die Erfassung der Stellsignale zur Ermittlung der Erfahrungswerte mittels einer Arbeitstellensteuerung der jeweiligen Arbeitsstelle. Je nachdem, ob die Erfahrungswerte nur aus Stellsignalen der jeweiligen Arbeitsstelle oder aus Stellsignalen von Arbeitsstellen einer Partie gewonnen werden, erfolgt die Ermittlung der Erfahrungswerte vorteilhafterweise mittels der Arbeitsstellensteuerung oder einer zentralen Steuereinheit.According to a preferred embodiment, the control means comprise a workstation controller and / or a central control unit. Advantageously, the control of the thread tension and the detection of the control signals to determine the empirical values by means of a workstation control of the respective job. Depending on whether the empirical values are obtained only from control signals of the respective workstation or from control signals of workplaces of a lot, the determination of the empirical values advantageously takes place by means of the workstation control or a central control unit.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.

Es zeigen:

Fig. 1
eine erfindungsgemäße Spulmaschine mit einer Vielzahl von Arbeitsstellen;
Fig. 2
eine Arbeitsstelle einer erfindungsgemäßen Spulmaschine;
Fig. 3
ein Blockschaltbild der Regelung der Fadenzugkraft;
Fig. 4
ein zeitlicher Verlauf der geregelten Fadenzugkraft und des zugehörigen Stellsignals des Fadenspanner;
Fig. 5
ein Blockschaltbild der Steuerung der Fadenzugkraft während des Ausfalls des Fadenzugkraftsensor.
Show it:
Fig. 1
a winding machine according to the invention with a plurality of jobs;
Fig. 2
a workstation of a winding machine according to the invention;
Fig. 3
a block diagram of the control of the thread tension;
Fig. 4
a time course of the controlled thread tension and the associated control signal of the thread tensioner;
Fig. 5
a block diagram of the control of the yarn tension during the failure of the yarn tension sensor.

Die Fig. 1 zeigt eine Spulmaschine 1 mit einer Vielzahl von Arbeitsstellen 2, die zwischen den Endgestellen 55, 56 der Spulmaschine 1 angeordnet sind. Die Spulmaschine weist eine zentrale Steuereinheit 50 auf, die über ein Bussystem 60 mit den Arbeitsstellensteuerungen 40 verbunden ist. Die zentrale Steuereinheit weist zur Bedienung und Anzeige eine Tastatur 52 und ein Display 51 auf.The Fig. 1 shows a winding machine 1 with a plurality of jobs 2, which are arranged between the end frames 55, 56 of the winder 1. The winding machine has a central control unit 50, which is connected via a bus system 60 to the workstation controls 40. The central control unit has a keyboard 52 and a display 51 for operation and display.

In Fig. 2 ist in Seitenansicht schematisch eine Arbeitsstelle 2 während des Spulprozesses dargestellt. Auf diesen Arbeitsstellen 2 werden, wie bekannt und daher nicht näher erläutert, Vorlagespulen, in der Regel auf Ringspinnmaschinen produzierte Spinnkopse 9, die nur relativ wenig Garnmaterial aufweisen, zu großvolumigen Kreuzspulen 11 umgespult. Die fertigen Kreuzspulen 11 werden anschließend mittels eines selbsttätig arbeitenden Serviceaggregates 57, beispielsweise eines Kreuzspulenwechslers, auf eine maschinenlange Kreuzspulentransporteinrichtung 21 übergeben und zu einer maschinenendseitig angeordneten Spulenverladestation oder dergleichen transportiert.In Fig. 2 is shown in side view schematically a job 2 during the winding process. At these jobs 2, as is known and therefore not explained in more detail, Original bobbins, usually produced on ring spinning machines spinning cops 9, which have relatively little yarn material, rewound to large-volume cheeses 11. The finished cheeses 11 are then transferred by means of an automatically operating service unit 57, such as a cheese changer, on a machine-spooled cross-bobbin transport device 21 and transported to a machine loading side arranged Spulenverladestation or the like.

Solche Spulmaschinen 1 sind außerdem entweder mit einem Rundmagazin ausgestattet, in dem Spinnkopse bevorratet werden können, oder die Kreuzspulautomaten weisen eine Logistikeinrichtung in Form eines Spulen- und Hülsentransportsystems 3 auf. In einem solchen Spulen- und Hülsentransportsystem 3 laufen dann Spinnkopse 9 beziehungsweise Leerhülsen 34 um, die in vertikaler Ausrichtung auf Transporttellern 8 angeordnet sind. Von diesem Hülsentransportsystem 3 sind lediglich die Kopszuführstrecke 4, die reversierend antreibbare Speicherstrecke 5, eine der zu den Arbeitsstellen 2 führenden Quertransportstrecken 6 sowie die Hülsenrückführstrecke 7 dargestellt. Wie angedeutet, werden die angelieferten Spinnkopse 9 dabei zunächst in einer Abspulstellung 10, die sich im Bereich der Quertransportstrecken 6 an den Arbeitsstellen 2 befindet, positioniert und anschließend umgespult.Such winding machines 1 are also equipped either with a round magazine, can be stored in the spinning cops, or the automatic packages have a logistics device in the form of a bobbin and tube transport system 3. In such a bobbin and tube transport system 3 then run spinning cops 9 and empty tubes 34, which are arranged in a vertical orientation on transport plates 8. Of this sleeve transport system 3, only the Kopszuführstrecke 4, the reversible drivable storage section 5, one of the leading to the jobs 2 transverse transport sections 6 and the sleeve return path 7 are shown. As indicated, the delivered spinning cops 9 are thereby initially positioned in an unwinding position 10, which is located in the region of the transverse transport sections 6 at the work stations 2, and then rewound.

Die einzelnen Arbeitsstellen 2 verfügen zu diesem Zweck, wie bekannt und daher nur angedeutet, über verschiedene Fadenüberwachungs- und -behandlungseinrichtungen, die nicht nur gewährleisten, dass die Spinnkopse 9 zu großvolumigen Kreuzspulen 11 umgespult werden können, sondern die auch sicherstellen, dass der Faden 30 während des Umspulvorganges auf Fadenfehler hin überwacht wird und detektierte Fadenfehler ausgereinigt werden. Jede Arbeitsstelle 2 verfügt über eine Arbeitsstellensteuerung 40, die über die nur angedeuteten Steuerleitungen mit den Fadenüberwachungs- und -behandlungseinrichtungen verbunden ist und über das Bussystem 60 mit der zentralen Steuereinheit 50 und der Steuereinrichtung 58 des Serviceaggregates 57 verbunden ist.The individual jobs 2 have for this purpose, as is well known and therefore only hinted at different Fadenüberwachungs- and treatment facilities that not only ensure that the spinning cops 9 can be rewound to bulky packages 11, but also ensure that the thread 30th is monitored for thread defects during the rewinding process and detected thread defects are cleared out. Each work station 2 has a workstation control 40, which via the only indicated control lines with the thread monitoring and treatment facilities is connected and connected via the bus system 60 to the central control unit 50 and the control device 58 of the service unit 57.

Die Arbeitsstellen 2 verfügen beispielsweise jeweils über eine Spulvorrichtung 24, die einen Spulenrahmen 18 aufweist, der um eine Schwenkachse 19 beweglich gelagert, und mit einer Spulenantriebseinrichtung 26 sowie einer Fadenchangiereinrichtung 28 ausgestattet ist.For example, the work stations 2 each have a winding device 24, which has a creel 18, which is movably mounted about a pivot axis 19 and is equipped with a bobbin drive device 26 and a thread-switching device 28.

Bei dem dargestellten Ausführungsbeispiel liegt die Kreuzspule 11 während des Spulprozesses mit ihrer Oberfläche auf einer Antriebswalze 26 und wird von dieser über Reibschluss mitgenommen. Die Antriebswalze 26 wird dabei über eine drehzahlregelbare, reversierbare (nicht dargestellte) Antriebseinrichtung beaufschlagt.In the illustrated embodiment, the cheese 11 is located during the winding process with its surface on a drive roller 26 and is carried along by this frictional engagement. The drive roller 26 is acted upon via a variable speed, reversible (not shown) drive means.

Die Changierung des Fadens 30 beim Auflaufen auf die Kreuzspule 11 erfolgt mittels einer Fadenchangiereinrichtung 28, die im vorliegenden Ausführungsbeispiel einen Fingerfadenführer 29 aufweist.The traversing of the thread 30 during emergence onto the cross-wound bobbin 11 takes place by means of a thread-changing device 28, which has a finger thread guide 29 in the present exemplary embodiment.

Die Arbeitsstelle 2 verfügt des Weiteren über eine Fadenverbindungseinrichtung, vorzugsweise eine pneumatisch arbeitende Spleißeinrichtung 13 mit einer Schneideinrichtung 43, einen Unterfadensensor 22, einen Fadenspanner 14, einen Fadenreiniger 15 mit einer Fadenschneideinrichtung 17, einen Fadenzugkraftsensor 20 sowie eine Paraffiniereinrichtung 16.The workstation 2 furthermore has a thread connecting device, preferably a pneumatically operated splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a paraffining device 16.

Außerdem ist die Arbeitsstelle 2 mit einer Saugdüse 12 sowie mit einem Greiferrohr 25 ausgestattet, die beide definiert mit Unterdruck beaufschlagbar sind. Die Saugdüse 12 und das Greiferrohr 25 sind dabei an eine maschinenlange Unterdrucktraverse 32 angeschlossen, die ihrerseits mit einer Unterdruckquelle 33 in Verbindung steht.In addition, the job 2 is equipped with a suction nozzle 12 and a gripper tube 25, both defined are acted upon by negative pressure. The suction nozzle 12 and the gripper tube 25 are connected to a machine-length vacuum crossbar 32, which in turn is in communication with a vacuum source 33.

Im dargestellten Ausführungsbeispiel ist außerdem im Bereich der Paraffiniereinrichtung 16 eine bezüglich des Fadenlaufweges etwas nach hinten versetzt angeordnete Fadenfangdüse 23 so positioniert, dass der Faden 30 während des Spulprozesses vor ihrer Mündung 42 läuft. Die Fadenfangdüse 23 ist über eine Luftweiche 27 ebenfalls an die Unterdrucktraverse 32 angeschlossen. Die Luftweiche 27 weist dabei einen Anschlussstutzen 35 für die Fadenfangdüse 23 sowie einen relativ voluminösen Entlastungsstutzen 36 auf, dessen Mündung während des regulären Spulbetriebes durch die in Wartestellung P positionierte Saugdüse 12 luftdicht verschlossen ist. Ein Öffnen des Entlastungsstutzens 36 durch Hochschwenken der Saugdüse 12 sorgt dafür, dass der an der Fadenfangdüse 23 anstehende Unterdruck zusammenbricht.In the illustrated embodiment, also in the area of the paraffining device 16, a thread catching nozzle 23, which is arranged offset somewhat rearwardly with respect to the thread running path, is positioned so that the thread 30 runs in front of its mouth 42 during the winding process. The thread-catching nozzle 23 is likewise connected to the vacuum cross-member 32 via an air switch 27. The air switch 27 in this case has a connecting piece 35 for the thread catching nozzle 23 and a relatively voluminous discharge port 36, the mouth of which is hermetically sealed during the regular winding operation by the suction nozzle 12 positioned in the waiting position P. An opening of the discharge nozzle 36 by pivoting the suction nozzle 12 ensures that the upcoming at the thread catching nozzle 23 negative pressure collapses.

Im regulären fehlerfreien Spulbetrieb wird die Fadenspannung an jeder Arbeitsstelle geregelt. Diese Regelung ist in Fig. 3 schematisch anhand eines Blockschaltbildes dargestellt. Im vorliegenden Ausführungsbeispiel wird ein Sollwert v für die Fadenzugkraft vorgegeben. Dieser kann vom Bediener zum Beispiel an der zentralen Steuereinheit 50 für eine Partie vorgeben werden und mittels des Bussystems 60 an die Arbeitsstellensteuerungen 40 der zu dieser Partie gehörenden Arbeitsstellen 2 übermittelt werden. Der Istwert y der Fadenzugkraft wird mittels des Fadenzugkraftsensors 20 gemessen. Um den Sollwert v und den Istwert y zu vergleichen, wird die Differenz e zwischen beiden Größen ermittelt. Dazu werden der mit einem negativen Vorzeichen beaufschlagte gemessene Istwert y und der Sollwert v dem Addierer 48 zugeführt. Die so ermittelte Differenz e ist das Eingangssignal für einen Regler 45, der dann das Stellsignal u für den Fadenspanner 14 bereitstellt. Der Regler 45 und die Vergleichseinrichtung mit dem Addierer 48 ist in dem vorliegenden Ausführungsbeispiel ein Teil der Arbeitsstellensteuerung 40. Prinzipiell ist es aber auch möglich, dass die Regelung in der zentralen Steuereinheit realisiert ist. Der dem Fadenspanner 14 in dem Blockschaltbild der Fig. 3 nachgeschaltete Block 46 wird in der Regelungstechnik als Strecke bezeichnet. Die Strecke 46 umfasst dabei die Teile der Arbeitsstelle, die unter Einfluss des Fadenspanners eine bestimmte Fadenspannung beziehungsweise Fadenzugkraft auf den laufenden Faden bewirken. Als Sollwert oder als gemessener Istwert kann auch die Fadenspannung anstelle der Fadenzugkraft verwendet werden. Gegebenenfalls muss die Fadenspannung in eine Fadenzugkraft umgerechnet werden oder umgekehrt.In regular error-free winding operation, the thread tension is regulated at each workstation. This regulation is in Fig. 3 schematically illustrated by a block diagram. In the present embodiment, a desired value v is specified for the yarn tension. This can be specified by the operator, for example, at the central control unit 50 for a batch and transmitted by means of the bus system 60 to the workstation controls 40 of the jobs belonging to this lot 2. The actual value y of the yarn tension is measured by means of the yarn tension sensor 20. In order to compare the setpoint value v and the actual value y, the difference e between both variables is determined. For this purpose, the measured actual value y applied with a negative sign and the desired value v are supplied to the adder 48. The thus determined difference e is the input signal for a controller 45, which then provides the actuating signal u for the thread tensioner 14. The controller 45 and the comparator with the adder 48 is in the present embodiment, a part of the workstation control 40. In principle, it is also possible that the control in the central control unit is realized. The thread tensioner 14 in the block diagram of Fig. 3 downstream block 46 is referred to in the control technology as a route. The route 46 includes the parts of the job that cause a certain thread tension or thread tension on the current thread under the influence of the thread tensioner. The setpoint value or the measured actual value can also be the thread tension instead of the thread tension. If necessary, the thread tension must be converted into a thread tension or vice versa.

Die Fig. 4 veranschaulicht die Wirkung der oben beschriebenen Regelung. Hier ist das Stellsignal u für den Fadenspanner 14 auf der einen und der Sollwert v beziehungsweise der Istwert y der Fadenzugkraft auf der anderen Seite über der Zeit beziehungsweise über die von dem Spinnkops abgespulte Fadenlänge aufgetragen. Es wird hier von einer konstanten Spulgeschwindigkeit ausgegangen, so dass die abgespulte Fadenlänge der Zeit proportional ist. Ferner wird von einer idealen Regelung ohne stationäre Regelabweichung ausgegangen, so dass der Sollwert v und der Istwert y identisch sind. Ferner ist das Stellsignal u dem von dem Fadenspanner ausgeübten Spannerdruck proportional. Um eine konstante Fadenzugkraft zu erhalten, ist zunächst ein höherer Spannerdruck erforderlich, je geringer die Restfadenmenge auf dem Spinnkops, beziehungsweise je größer die abgespulte Fadenlänge, desto niedriger muss der Spannerdruck eingestellt werden, um eine konstante Fadenzugkraft zu erhalten. Bei konstantem Spannerdruck würde also die Fadenzugkraft mit der abgespulten Fadenlänge zunehmen.The Fig. 4 illustrates the effect of the regulation described above. Here, the control signal u for the thread tensioner 14 on one side and the desired value v or the actual value y of the yarn tension on the other side over time or over the unwound from the spinning cop yarn length is plotted. It is assumed here by a constant winding speed, so that the unwound thread length of time is proportional. Furthermore, it is assumed that an ideal control without stationary control deviation, so that the setpoint v and the actual value y are identical. Furthermore, the actuating signal u is proportional to the tensioning pressure exerted by the thread tensioner. In order to obtain a constant yarn tension, a higher tensioner pressure is initially required, the smaller the amount of residual thread on the spinning cop, or the greater the unwound thread length, the lower the tensioner pressure must be set in order to obtain a constant yarn tension. At constant tensioner pressure so the yarn tension would increase with the unwound thread length.

Die Spulgeschwindigkeit muss nicht, wie oben angenommen, über die gesamte Kopsreise konstant bleiben. Wenn der der Fadenspanner, den Druck nicht weiter absenken kann, wird die Spulgeschwindigkeit schrittweise reduziert, um wieder eine Regelung der Fadenzugkraft mittels des Fadenspanners als Stellglied zu ermöglichen. Im Blockschaltbild der Fig. 3 wird der Einfluss der Änderung der Spulgeschwindigkeit durch die Störgröße d symbolisiert.The winding speed need not, as assumed above, remain constant over the entire Kopsreise. If the thread tensioner can not lower the pressure any further, the winding speed is gradually reduced to one again To allow control of the thread tension by means of the thread tensioner as an actuator. In the block diagram of Fig. 3 the influence of the change in the winding speed is symbolized by the disturbance d.

Während des regulären Spulbetriebes werden nun die Stellsignale u des Fadenspanners 14 in Abhängigkeit von der von dem jeweiligen Spinnkops abgespulten Fadenlänge erfasst und gespeichert. Zusätzlich wird die jeweilige Spulgeschwindigkeit mit abgespeichert. Diese Werte können netzausfallsicher in einem Speicher der Arbeitsstellensteuerung oder in einem Speicher der zentralen Steuereinheit abgelegt werden. Das Abspeichern kann zum Beispiel in Form einer Tabelle erfolgen. Diese Tabelle ordnet dann einer abgespulten Fadenlänge einen Wert für das Stellsignal u und eine Spulgeschwindigkeit zu. Die abgespulte Fadenlänge korrespondiert dabei zu einer bestimmten Restfadenmenge auf dem Spinnkops. Die abgespulte Fadenlänge kann zum Beispiel in an sich bekannter Weise aus den Umdrehungen der Abtriebswalze 26 ermittelt werden. Dazu werden die Umdrehungen der Antriebswalze 26 erfasst und in einem Zähler abgelegt. Dieser muss dann bei jedem Spinnkopswechsel zurückgesetzt werden. Die Anzahl der Umdrehungen ist dann proportional zu der abgespulten Fadenlänge. Dieser Wert kann direkt dem jeweiligen Wert des Stellsignals zugeordnet werden. Eine Umrechnung in eine Fadenlänge anhand des Antriebswalzendurchmesser ist nicht erforderlich. Die so ermittelten und gespeicherten Werte für das Stellsignal stellen bereits Erfahrungswerte im Sinne der vorliegenden Erfindung dar. Eine Weiterverarbeitung dieser Werte kann unter Umständen zu spezifischeren Erfahrungswerten führen. Zu diesem Zweck können Mittelwerte von mehreren einer abgespulten Fadenlänge zugeordneten Stellsignalwerten gebildet werden. So können zum Beispiel Mittelwerte mehrerer oder aller auf einer Arbeitsstelle 2 verspulter Spinnkopse 9 einer Partie bestimmt und entsprechend in einer Tabelle gespeichert werden. Es ist auch möglich, Mittelwerte aller oder mehrer Arbeitsstellen 2 einer Partie zu verwenden. Dazu werden vorteilhafterweise, wenn nicht bereits geschehen, die an Arbeitsstellen 2 erfassten Werte an die zentrale Steuereinheit 50 übermittelt. Hier können dann die Mittelwerte aller Spinnkopse 9 dieser Partie oder die Mittelwerte des jeweils letzten Spinnkopses 9 mehrerer oder aller Spulstellen dieser Partie ermittelt werden. Diese Mittelwerte werden dann entsprechend in Tabellen abgelegt, wobei jedem Wert der abgespulten Fadenlänge ein solcher Mittelwert des Stellsignals zugeordnet ist.During the regular winding operation, the control signals u of the thread tensioner 14 are detected and stored as a function of the length of the thread unwound from the respective spinning cop. In addition, the respective winding speed is also stored. These values can be stored in a memory of the workstation control or in a memory of the central control unit in a power-failure-proof manner. The saving can take place, for example, in the form of a table. This table then assigns to a unwound thread length a value for the control signal u and a winding speed. The unwound thread length corresponds to a certain amount of residual thread on the spinning cop. The unwound thread length can be determined, for example, in a manner known per se from the revolutions of the driven roller 26. For this purpose, the revolutions of the drive roller 26 are detected and stored in a counter. This must then be reset every time the spinning head is changed. The number of revolutions is then proportional to the unwound thread length. This value can be assigned directly to the respective value of the control signal. A conversion into a thread length based on the drive roller diameter is not required. The values thus determined and stored for the actuating signal already represent empirical values in the sense of the present invention. A further processing of these values may possibly lead to more specific empirical values. For this purpose, mean values of a plurality of set signal values assigned to a unwound thread length can be formed. Thus, for example, mean values of several or all of the spinning heads 9 of a batch which have been coiled on a workstation 2 can be determined and stored accordingly in a table. It is also possible to use averages of all or several jobs 2 of a lot. For this purpose, if not already done, the values recorded at work stations 2 are advantageously transmitted to the central control unit 50. Here, the mean values of all spinning cops 9 of this batch or the mean values of the respectively last spinning cops 9 of several or all winding units of this batch can be determined. These average values are then stored correspondingly in tables, wherein each value of the unwound thread length is assigned such an average value of the actuating signal.

Sobald die Arbeitstellensteuerung 40 einen Ausfall des Fadenzugkraftsensors 20 ihrer Arbeitsstelle 2 feststellt, wird automatisch, das heißt, ohne Bedienereingriff, an der betroffenen Arbeitsstelle 2 von der Regelung der Fadenspannung auf eine Steuerung umgeschaltet. Gleichzeitig wird am Display 51 der zentralen Steuereinheit 50 eine entsprechende Fehlermeldung angezeigt. Eine solche Steuerung ist in Fig. 5 schematisch dargestellt. Der Block 47 stellt einen Speicher dar, indem die Erfahrungswerte, wie oben beschrieben, in Form von Tabellen abgelegt sind. In einer Tabelle wird einer abgespulten Fadenlänge jeweils ein Wert für das Stellsignal zugeordnet. Je nachdem, welche Erfahrungswerte verwandt werden, kann der Speicher 47 der Arbeitsstellensteuerung 40 oder der zentralen Steuereinheit 50 zugeordnet sein. Das anhand der von dem Spinnkops abgespulten Fadenlänge und der Tabelle ermittelte Stellsignal u wird dann dem Fadenspanner 14 zugeführt. Zusätzlich wird die Spulgeschwindigkeit auf den in der Tabelle abgelegten Wert eingestellt. Durch die Strecke 46 bildet sich der Istwert y der Fadenspannung aus. Dieser Istwert y liegt nahe an dem Sollwert v, obwohl die Fadenspannung nicht geregelt sondern gesteuert wird.Once the workstation control 40 detects a failure of the yarn tension sensor 20 of their job 2, automatically, that is, without operator intervention, switched at the affected workstation 2 of the control of the thread tension to a controller. At the same time a corresponding error message is displayed on the display 51 of the central control unit 50. Such a control is in Fig. 5 shown schematically. Block 47 represents a memory in which the empirical values, as described above, are stored in the form of tables. In a table, a unwound thread length is assigned a value for the control signal. Depending on which empirical values are used, the memory 47 may be assigned to the workstation control 40 or the central control unit 50. The control signal u determined on the basis of the length of thread unwound from the spinning cop and the table is then fed to the thread tensioner 14. In addition, the winding speed is set to the value stored in the table. The distance 46 forms the actual value y of the thread tension. This actual value y is close to the desired value v, although the thread tension is not controlled but controlled.

Claims (14)

  1. Method for operating a winding machine (1) with a plurality of workstations (2) which wind respectively a thread (30) from spinning cops (9) onto a cross-wound bobbin (11), wherein over the course of the thread (30) a sensor, which measures a variable representing the thread tension, and a thread tensioner (14), which allocates a thread tension to the thread (30), are arranged, and the thread tension is closed-loop controlled, in that the measured variable (y) representing the thread tension is compared with a desired value (v) of the variable representing the thread tension, and as a function of the comparison (e) an adjusting signal (u) is generated for the thread tensioner (14) for adjusting the thread tension, wherein after detecting the failure of a sensor (20) the thread tension is open-loop controlled,
    characterised in that
    a variable representing the respective remaining thread length on the spinning cops (9) is determined,
    in that depending on the remaining thread length on the spinning cops (9) from at least one adjusting signal (u) determined during winding with an closed-loop controlled thread tension empirical values are determined for the adjusting signal (u), and for the open-loop control of the thread tension by the thread tensioner (14) on the failure of a sensor (20) the previously determined empirical values for the adjusting signal (u) are used as a function of the remaining thread length on the spinning cops (9) as adjusting signal (u).
  2. Method according to claim 1, characterised in that to establish the empirical values the adjusting signals of a plurality of workstations are determined.
  3. Method according to claim 1 or 2, characterised in that the thread length unwound from the spinning cops (9) is used as the variable representing the remaining amount of thread on the spinning cop (9).
  4. Method according to claim 2 or 3, characterised in that the empirical values, which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), are established from the adjusting signal determined during the unwinding of at least one spinning cop (9) of the same workstation prior to the failure of the sensor (20).
  5. Method according to claim 4, characterised in that the empirical values which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), are established from the adjusting signal determined during the unwinding of the last spinning cop (9) of said workstation (2) prior to the failure of the sensor (20).
  6. Method according to claim 4, characterised in that the empirical values, which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), represent average values of the adjusting signals (u) of a plurality of spinning cops (9) unwound at said workstation (2).
  7. Method according to claim 2 or 3, characterised in that the empirical values, which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), are average values of the adjusting signals (u) of a plurality of workstations (2) of the same batch.
  8. Method according to claim 7, characterised in that the empirical values, which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), are average values of all of the established adjusting signals (u) of workstations (2) of the same batch.
  9. Method according to claim 7, characterised in that the empirical values, which are used for open-loop controlling the thread tension on the failure of the sensor (20) of a workstation (2), are average values of the adjusting signals (u) established on unwinding the last spinning cop (9) at a plurality of workstations (2) of the batch.
  10. Method according to one of the preceding claims, characterised in that the failure of a sensor (20) is displayed.
  11. Method according to one of the preceding claims, characterised in that during the winding with a closed-loop controlled thread tension the winding speed is adjusted as a function of the setting of the thread tensioner (14) and as a function of the remaining thread length on the spinning cops empirical values are determined for the winding speed and on the failure of a sensor (20) the previously determined empirical values for the winding speed are used as a function of the remaining thread length for setting the winding speed.
  12. Winding machine for performing the method according to one of claims 1 to 11 comprising a plurality of workstations (2), which are designed respectively for winding a thread (30) from a spinning cop (9) onto a cross-wound bobbin (11), wherein over the course of the thread (30) a sensor (20) is provided for measuring a variable representing the thread tension and a thread tensioner (14) which allocates a thread tension to the thread (30), and control means (40, 50) are provided for closed-loop controlling the thread tension which are configured to compare the variable (y) representing the thread tension with a desired value (v) of the variable representing the thread tension, and as a function of the comparison (e) to generate an adjusting signal (u) for the thread tensioner (14) to set the thread tension, wherein the control means (40, 50) are configured to open-loop control the thread tension on the failure of the sensor (20),
    characterised in that
    the control means (40, 50) are configured to detect a variable representing the remaining thread length on the spinning cops,
    to determine empirical values for the adjusting signal (u) as a function of the variable representing the remaining thread length on the spinning cops from at least one adjusting signal (u) determined during the winding with a closed-loop controlled thread tension and
    on the failure of a sensor (20) to use at least one portion of the empirical values as a function of the variable representing the remaining thread length on the spinning cops (9) for open-loop controlling the thread tension for the thread tensioner (14) as adjusting signal (u).
  13. Winding machine according to claim 12, characterised in that the control means (40, 50) comprise a workstation control (40).
  14. Winding machine according to claim 12 or 13, characterised in that the control means (40, 50) comprise a central control unit (50) of the winding machine.
EP20110009261 2010-12-23 2011-11-23 Method for operating a winding machine and winding machine Not-in-force EP2468670B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016121667A1 (en) 2016-11-11 2018-05-17 Saurer Germany Gmbh & Co. Kg Method for operating a winding unit and winding machine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012007683A1 (en) * 2012-04-17 2013-10-17 Oerlikon Textile Gmbh & Co. Kg Method for operating a winding machine and winding machine
CN103451790B (en) * 2013-08-22 2016-03-30 浙江康立自控科技有限公司 Yield statistic device of textile machine
DE102013021316A1 (en) * 2013-12-16 2015-06-18 Saurer Germany Gmbh & Co. Kg Method for operating a winding machine and winding machine
DE102015008166A1 (en) * 2015-06-25 2016-12-29 Saurer Germany Gmbh & Co. Kg Method and device for optimizing the density of cheeses produced on the work stations of a cheese-winder
US11305960B2 (en) * 2017-06-07 2022-04-19 Oerlikon Textile Gmbh & Co. Kg Method and device for monitoring a yarn tension of a running yarn
IT201900001195A1 (en) * 2019-01-28 2020-07-28 Savio Macch Tessili Spa SPINNING APPARATUS, IN PARTICULAR WITH AIR, WITH CONTINUOUS REGULATION OF A YARN ACCUMULATION SYSTEM AND RELATIVE METHOD OF CONTINUOUS REGULATION OF A YARN ACCUMULATION SYSTEM IN A SPINNING APPARATUS
EP3828325A1 (en) * 2019-11-29 2021-06-02 Saurer Intelligent Technology AG Spinning station and air spinning station comprising such a spinning station and process to determin a yarn strength defect
CN113682891B (en) * 2021-09-07 2023-05-19 巨石集团有限公司 Single-head double-split cake winding machine and cake winding method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1218170B (en) * 1986-10-11 1990-04-12 Murata Machinery Ltd PROCEDURE FOR WINDING WIRE IN AUTOMATIC WINDING MACHINE AND RELATED CONTROL DEVICE
DE3733597A1 (en) 1987-10-05 1989-04-20 Schlafhorst & Co W Process and device for the rewinding of cops
DE3939789C2 (en) * 1989-12-01 1999-02-11 Schlafhorst & Co W Method and device for operating an automatic textile machine
JP2936917B2 (en) * 1992-10-16 1999-08-23 村田機械株式会社 Automatic winder tension control device
JP3564817B2 (en) * 1995-09-14 2004-09-15 村田機械株式会社 Winder
ITMI20051325A1 (en) * 2005-07-12 2007-01-13 Btsr Int Spa METHOD AND DEVICE TO ENSURE THE SUPPLY OF A CONSTANT VOLTAGE THREAD WITH A DOUBLE RING ADJUSTMENT TO A TEXTILE MACHINE
JP2009024097A (en) 2007-07-20 2009-02-05 Nisshinbo Ind Inc Method for producing carbodiimide compound
JP2009242096A (en) 2008-03-31 2009-10-22 Murata Mach Ltd Automatic winder
JP2009242097A (en) * 2008-03-31 2009-10-22 Murata Mach Ltd Automatic winder and package winding method for automatic winder
CN201425533Y (en) * 2009-05-26 2010-03-17 浙江双箭橡胶股份有限公司 Tension detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016121667A1 (en) 2016-11-11 2018-05-17 Saurer Germany Gmbh & Co. Kg Method for operating a winding unit and winding machine

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EP2468670A2 (en) 2012-06-27
DE102010056116A1 (en) 2012-06-28
CN102530646A (en) 2012-07-04
JP5916374B2 (en) 2016-05-11
CN102530646B (en) 2016-03-30
JP2012131643A (en) 2012-07-12
EP2468670A3 (en) 2013-08-21

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