EP0979793A2 - Method to stop an electric motor and circuit to break it - Google Patents

Method to stop an electric motor and circuit to break it Download PDF

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Publication number
EP0979793A2
EP0979793A2 EP99110202A EP99110202A EP0979793A2 EP 0979793 A2 EP0979793 A2 EP 0979793A2 EP 99110202 A EP99110202 A EP 99110202A EP 99110202 A EP99110202 A EP 99110202A EP 0979793 A2 EP0979793 A2 EP 0979793A2
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EP
European Patent Office
Prior art keywords
current
braking
drive motor
motor
heat
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
EP99110202A
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German (de)
French (fr)
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EP0979793B1 (en
EP0979793A3 (en
Inventor
Hans-Günter Wedershoven
Rolf Haasen
Ferdinand-Josef Dr.-Ing. Hermanns
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
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Publication date
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0979793A2 publication Critical patent/EP0979793A2/en
Publication of EP0979793A3 publication Critical patent/EP0979793A3/en
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Publication of EP0979793B1 publication Critical patent/EP0979793B1/en
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    • 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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/74—Driving arrangements
    • 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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/923—Specific feedback condition or device
    • Y10S388/934—Thermal condition

Definitions

  • the invention relates to a method for stopping a electric drive motor, especially one Drive motor for driving a grooved drum Winding station of a winding machine, which is used for braking in opposite directions a braking current is applied to a nominal current, whose strength can be a multiple of the nominal current, and a brake circuit.
  • the invention has for its object a method and to create a brake circuit of the type mentioned, in which the element driven by the drive motor or the associated machine work with the highest possible efficiency can.
  • this object is achieved by that the current thermal load of the Drive motor detected and the strength of the braking current dependent from this thermal load on the drive motor is selected.
  • graded values for braking currents are stored, each of which an area is assigned to a thermal load. For such a step-by-step implementation is sufficient Determination of the suitable braking current without further ado.
  • the object is achieved by that means for detecting the current thermal load of the drive motor and means for selecting the for a braking current to be applied in dependence are provided by this thermal load.
  • means for Assign the sensed thermal load to in a memory stored values of thermal loads and means for Call a braking current with one for the assigned Value given strength are provided.
  • the individual winding units are included a grooved drum 10 equipped during the rewinding a relatively large-volume package on friction drives.
  • the Groove drum 10 one of a (not shown) Spinnkops pulled thread 12 in the transverse direction that a conical or cylindrical cheese 11 is wound.
  • the grooved drum 10 is driven by an electric motor 13 driven, which is an electronic in the embodiment commutated servo motor.
  • the circuit arrangement with the Brake circuit according to the present invention is suitable however, in principle for any type of electrical Drive motor.
  • the winding process is interrupted immediately. That is to say, the cross-wound bobbin 11 is lifted off the grooved drum 10 and braked to a standstill by means of a bobbin brake, which is not shown but is known per se and is arranged on the bobbin frame.
  • the grooved drum 10 which has a not inconsiderable weight inertia, is also braked by applying the associated drive motor 13 with braking current, which is directed in the opposite direction to the current direction of the nominal current that is present during normal winding operation.
  • a braking current with the highest possible strength is selected, which can be a multiple of the strength of the nominal current.
  • the thermal load which occurs briefly is not so strong that it can damage the drive motor 13.
  • thermal overload when braking To avoid downtimes caused is according to the Invention provided that the current thermal constantly Load of the drive motor 13 is detected, and that in Depending on the strength of the braking current for the following braking process is selected so that ensures is that there is no thermal overload. So that will not with the shortest during every braking operation theoretically possible braking time braked, but it does Brakes with the technically shortest, a thermal Overloading the drive motor 13 avoiding braking time.
  • a winding station computer 14 specifies the current strength and current direction with which the drive motor 13 is applied. In this way, the winding unit computer 14 determines the speed of the drive motor 13 on the one hand and, on the other hand, its braking behavior as a function of the thermal load condition of the drive motor 13.
  • the winding unit computer 14 processes information from a central computer (not shown) which is sent to it, for example, via a machine bus 21. This information can relate, for example, to the winding speed or the rotational speed of the drive motor 13, possibly also to achieve image disturbances to avoid image winding on the cheese 11.
  • the signals from the winding station computer 14, which reach a power amplifier 15 via a line 22, are processed there accordingly.
  • the output stage 15 passes the current in phase to the windings of the drive motor 13.
  • the output stage 15 also uses information from a rotor position sensor 16.
  • the actual speed or actual speed of the drive motor 13 detected on a pole ring 17 of the drive motor 13 is reported back to the winding station computer 14 for speed control.
  • the detected actual speed of the drive motor 13 can also be used for further functions at the winding unit, for example it can be passed to a cleaner which determines the measuring intervals for monitoring the thread 12 depending on the actual speed.
  • the winding unit computer 14 also uses the information about the current thermal load on the drive motor 13. As indicated in FIG. 1, the drive motor 13 can do this a thermal sensor 18 can be assigned, the signal in the winding unit computer 14 is entered.
  • the winding station computer 14 can also calculate the instantaneous thermal load on the drive motor 13 by detecting the current applied to the drive motor 13 over time.
  • the winding unit computer 14 has an integrator 20 and a memory 19. A large number of drum load value ranges with their associated braking values are stored in the memory 19.
  • the winding station computer 14 determines the strength of the braking current with which the drive motor 13 can be subjected to a maximum for each braking operation in such a way that the shortest possible braking time is achieved, but the braking current does not lead to an impermissible thermal overload of the drive motor 13 .

Abstract

At a bobbin winding station, to stop the electric drive motor (13) for the grooved drum (10) to give the reciprocating yarn guide movement, the motor is fed with a braking current in the opposite direction to the nominal current supply. The generated heat loading on the motor (13) is measured, and the strength of the braking current is varied (14) according to the motor (13) heat. The actual heat loading on the motor is measured by the current loading of the motor over the time. Stepped values for the braking current are used, each for a thermal loading range. An Independent claim is included for a motor braking circuit with a monitor to register the actual motor (13) heat. A unit (14) selects the braking current to be used for a braking action, according to the measured motor heat level. Preferred Features: The braking current control (14) has stored data for current values related to heat levels, and a system to select the required braking current according to the measured motor heat. The motor heat levels are stored in the database in stepped value, where each heat range is associated with a braking current strength.

Description

Die Erfindung betrifft ein Verfahren zum Stillsetzen eines elektrischen Antriebsmotors, insbesondere eines Antriebsmotors zum Antreiben einer Nutentrommel einer Spulstelle einer Spulmaschine, der zum Bremsen gegensinnig zu einem Nennstrom mit einem Bremsstrom beaufschlagt wird, dessen Stärke ein Mehrfaches des Nennstroms betragen kann, und eine Bremsschaltung.The invention relates to a method for stopping a electric drive motor, especially one Drive motor for driving a grooved drum Winding station of a winding machine, which is used for braking in opposite directions a braking current is applied to a nominal current, whose strength can be a multiple of the nominal current, and a brake circuit.

Bei vielen Anwendungen von elektrischen Antriebsmotoren wird angestrebt, diese möglichst schnell zum Stillstand abzubremsen. Bei Spulmaschinen beispielsweise, bei denen jeweils ein elektrischer Antriebsmotor eine Nutentrommel einer Spulstelle antreibt, wird angestrebt, den Antriebsmotor bei Bedarf möglichst schnell abzubremsen, um die Stillstandszeiten der betreffenden Spulstellen kurz und damit den Wirkungsgrad der Spulmaschine hoch zu halten. An den Spulstellen werden Spinnkopse zu großvolumigen Kreuzspulen umgespult. Die Fäden werden dabei während des Umspulens auf Fadenfehler hin überwacht. Wird ein Fadenfehler festgestellt, so wird der Umspulvorgang unterbrochen, das Fadenstück mit dem Fehler herausgeschnitten, eine Fadenverbindung zwischen den verbleibenden Fadenstücken hergestellt und der Spulvorgang wieder aufgenommen. Um dies in möglichst kurzer Zeit durchzuführen, ist es auch notwendig, die Nutentrommel möglichst schnell zum Stillstand zu bringen. In many applications of electric drive motors strived to bring this to a standstill as quickly as possible slow down. For example, in winding machines an electric drive motor and a grooved drum drives a winding unit, the drive motor is sought if necessary, slow down as quickly as possible to Downtimes of the winding units concerned are short and therefore to keep the efficiency of the winding machine high. To the Spooling units become spinning bobbins into large-volume packages rewound. The threads are on during rewinding Thread errors monitored. If a thread defect is found, so the rewinding process is interrupted, the thread piece with cut out the mistake, a thread connection between the remaining thread pieces made and the Rewinding process resumed. To do this in the shortest possible time Time, it is also necessary to use the grooved drum bring it to a standstill as quickly as possible.

Um einen elektrischen Antriebsmotor elektrisch abzubremsen, wird dieser gegensinnig zum Nennstrom mit einem Bremsstrom beaufschlagt. Die Bremszeit ist dabei abhängig von der Größe des Bremsstroms, die ein Mehrfaches des Nennstroms betragen kann, ohne daß im Normalfall eine Beschädigung des Antriebsmotors zu befürchten ist. Üblicherweise ist für derartige Antriebsmotoren eine thermische Überwachungseinrichtung vorgesehen, die eine thermische Überlastung feststellt und dann den Betrieb des Antriebsmotors unterbricht und damit verhindert, daß infolge Überhitzung des Motors schwere Motorschäden auftreten. Eine derartige thermische Überlastung kann auftreten, wenn ein Antriebsmotor einer Nuttrommel mehrfach kurzzeitig hintereinander gebremst und wieder beschleunigt wird. Der Antriebsmotor wird dann mittels der Temperaturüberwachungseinrichtung abgeschaltet und bleibt so lange abgeschaltet, bis die Temperatur wieder unter den eingestellten Sicherheitswert abgesunken ist. In der Regel wird an der betreffenden Spulstelle außerdem Rotlicht gesetzt, und damit angezeigt, daß an dieser Spulstelle eine Störung besteht, die einen Eingriff des Bedienpersonals erfordert. Dies führt zu Stillstandszeiten und damit zu nicht unerheblichen Wirkungsgradverlusten der betroffenen Vorrichtung oder Maschine.To electrically brake an electric drive motor, this becomes in opposite directions to the nominal current with a braking current acted upon. The braking time depends on the size of the braking current, which is a multiple of the nominal current can, without normally damaging the Drive motor is to be feared. Usually for such drive motors a thermal Monitoring device provided that a thermal Overload detects and then the operation of the Drive motor interrupts and thus prevents that as a result Overheating the engine may result in serious engine damage. Such thermal overload can occur when a drive motor of a grooved drum several times for a short time is braked in succession and accelerated again. The drive motor is then by means of Temperature monitoring device switched off and remains so switched off for a long time until the temperature fell below the set safety value has dropped. Usually also turns red light at the winding unit concerned set, and thus indicated that a There is a malfunction that involves operator intervention required. This leads to downtimes and therefore not to insignificant loss of efficiency of the affected Device or machine.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Bremsschaltung der eingangs genannten Art zu schaffen, bei der das von dem Antriebsmotor angetriebene Element oder die zugehörige Maschine mit möglichst hohem Wirkungsgrad arbeiten kann.The invention has for its object a method and to create a brake circuit of the type mentioned, in which the element driven by the drive motor or the associated machine work with the highest possible efficiency can.

Diese Aufgabe wird bezüglich des Verfahrens dadurch gelöst, daß ständig die momentane thermische Belastung des Antriebsmotors erfaßt und die Stärke des Bremsstroms abhängig von dieser thermischen Belastung des Antriebsmotors ausgewählt wird. With regard to the method, this object is achieved by that the current thermal load of the Drive motor detected and the strength of the braking current dependent from this thermal load on the drive motor is selected.

Damit wird erreicht, daß bei jedem Einleiten eines Bremsvorganges die Stärke des für den Bremsvorgang geeigneten, das heißt, möglichst hohen Bremsstromes ermittelt wird, so daß auch bei mehreren kurzzeitig hintereinander wiederholten Bremsvorgängen jeweils mit einer die Bremszeit minimierenden, maximalen Bremskraft gearbeitet werden kann, ohne daß es zu einer Überlastung des Antriebsmotors kommt. Abhängig von der momentanen thermischen Belastung des Antriebsmotors ergeben sich dann unterschiedliche Bremszeiten, d.h. bei höherer thermischer Belastung höhere Bremszeiten, ohne daß jedoch der Antriebsmotor in einen ein Abschalten erforderlichen Temperaturbereich gelangt.This ensures that each time a Braking process the strength of the braking process suitable, that is, the highest possible braking current determined is so that even with several short periods in a row repeated braking each with a braking time minimizing, maximum braking force can be worked without the drive motor being overloaded. Depending on the current thermal load on the drive motor then there are different ones Braking times, i.e. with higher thermal load higher Braking times, but without the drive motor in one Switch off the required temperature range.

Um den apparativen Aufwand möglichst gering zu halten, wird in Ausgestaltung der Erfindung vorgesehen, daß die momentane thermische Belastung des Antriebsmotors aus der Strombeaufschlagung des Antriebsmotors über der Zeit erfaßt wird. Auf diese Weise läßt sich der meßtechnische oder apparative Aufwand relativ gering halten.In order to keep the expenditure on equipment as low as possible, provided in an embodiment of the invention that the current thermal load of the drive motor from the current application of the drive motor is detected over time. On in this way the metrological or equipment expenditure can be keep it relatively low.

In weiterer Ausgestaltung der Erfindung wird vorgesehen, daß abgestufte Werte für Bremsströme abgelegt sind, denen jeweils ein Bereich einer thermischen Belastung zugeordnet ist. Für eine praktische Realisierung reicht eine derart stufenweise Festlegung des geeigneten Bremsstroms ohne weiteres aus.In a further embodiment of the invention it is provided that graded values for braking currents are stored, each of which an area is assigned to a thermal load. For such a step-by-step implementation is sufficient Determination of the suitable braking current without further ado.

Bezüglich einer Bremsschaltung wird die Aufgabe dadurch gelöst, daß Mittel zum Erfassen der momentanen thermischen Belastung des Antriebsmotors und Mittel zum Auswählen des für einen Bremsvorgang anzulegenden Bremsstroms in Abhängigkeit von dieser thermischen Belastung vorgesehen sind.With regard to a brake circuit, the object is achieved by that means for detecting the current thermal load of the drive motor and means for selecting the for a braking current to be applied in dependence are provided by this thermal load.

In weiterer Ausgestaltung wird vorgesehen, daß Mittel zum Zuordnen der erfaßten thermischen Belastung zu in einem Speicher abgelegten Werten thermischer Belastungen und Mittel zum Aufrufen eines Bremsstroms mit einer für den zugeordneten Wert vorgegeben Stärke vorgesehen sind. In a further embodiment it is provided that means for Assign the sensed thermal load to in a memory stored values of thermal loads and means for Call a braking current with one for the assigned Value given strength are provided.

Weitere Merkmale und Vorteile der Erfindung sind nachfolgend anhand der in den Zeichnungen dargestellten Ausführungsbeispielen erläutert. Es zeigt:

Fig.1
schematisch ein erstes Ausführungsbeispiel einer Schaltungsanordnung, die eine Bremsschaltung für einen Antriebsmotor einer Nutentrommel einer Spulstelle einer Spulmaschine enthält,
Fig.2
ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Bremsschaltung.
Further features and advantages of the invention are explained below using the exemplary embodiments illustrated in the drawings. It shows:
Fig. 1
schematically a first embodiment of a circuit arrangement which contains a brake circuit for a drive motor of a slot drum of a winding unit of a winding machine,
Fig. 2
a further embodiment of a brake circuit according to the invention.

Bei Spulmaschinen sind die einzelnen Spulstellen jeweils mit einer Nutentrommel 10 ausgerüstet, die während des Umspulens über Reibschluß eine relativ großvolumige Auflaufspule antreibt. Während des Umspulprozesses verlegt die Nutentrommel 10 einen von einem (nicht dargestellten) Spinnkops abgezogenen Faden 12 derart in Querrichtung, daß eine konische oder zylindrische Kreuzspule 11 gewickelt wird.With winding machines, the individual winding units are included a grooved drum 10 equipped during the rewinding a relatively large-volume package on friction drives. During the rewinding process, the Groove drum 10 one of a (not shown) Spinnkops pulled thread 12 in the transverse direction that a conical or cylindrical cheese 11 is wound.

Die Nutentrommel 10 wird dabei mittels eines Elektromotors 13 angetrieben, der bei dem Ausführungsbeispiel ein elektronisch kommutierter Servomotor ist. Die Schaltunganordnung mit der Bremsschaltung nach der vorliegenden Erfindung eignet sich jedoch prinzipiell für jede Art von elektrischem Antriebsmotor.The grooved drum 10 is driven by an electric motor 13 driven, which is an electronic in the embodiment commutated servo motor. The circuit arrangement with the Brake circuit according to the present invention is suitable however, in principle for any type of electrical Drive motor.

Wenn ein aus dem Faden 12 herauszutrennender Fadenfehler festgestellt wird, oder ein Fadenbruch auftritt, wird der Spulvorgang sofort unterbrochen.
Das heißt, die Kreuzspule 11 wird von der Nutentrommel 10 abgehoben und mittels einer nicht dargestellten, jedoch an sich bekannten, am Spulenrahmen angeordneten Spulenbremse in den Stillstand gebremst. Die Nutentrommel 10, die eine nicht unerhebliche Gewichtsträgheit aufweist, wird ebenfalls gebremst, indem der zugehörige Antriebsmotor 13 mit Bremsstrom beaufschlagt wird, der gegensinnig zur Stromrichtung des während des normalen Spulbetriebes anstehenden Nennstromes gerichtet ist.
Um ein möglichst schnelles Stillsetzen des Antriebsmotors 13 zu erhalten, wird ein Bremsstrom mit möglichst hoher Stärke gewählt, die ein Mehrfaches der Stärke des Nennstroms betragen kann. Die dabei kurzzeitig auftretende thermische Belastung ist nicht so stark, daß sie zu einem Schaden an dem Antriebsmotor 13 führen kann.If a thread defect to be removed from the thread 12 is determined or a thread break occurs, the winding process is interrupted immediately.
That is to say, the cross-wound bobbin 11 is lifted off the grooved drum 10 and braked to a standstill by means of a bobbin brake, which is not shown but is known per se and is arranged on the bobbin frame. The grooved drum 10, which has a not inconsiderable weight inertia, is also braked by applying the associated drive motor 13 with braking current, which is directed in the opposite direction to the current direction of the nominal current that is present during normal winding operation.
In order to stop the drive motor 13 as quickly as possible, a braking current with the highest possible strength is selected, which can be a multiple of the strength of the nominal current. The thermal load which occurs briefly is not so strong that it can damage the drive motor 13.

Wenn jedoch innerhalb einer kurzen Zeitspanne mehrere Bremsungen durchgeführt werden müssen, kann die thermische Belastung des Antriebsmotors 13 sehr hoch werden.
Üblicherweise sind derartige Antriebsmotoren daher mit einem thermischen Überlastschutz versehen, der dafür sorgt, daß der Antriebsmotor 13, wenn eine Sicherheitstemperatur erreicht wird, abschaltet und nicht wieder eingeschaltet werden kann. Ein mehrfaches Abbremsen der Nuttrommel 10 innerhalb kurzer Zeit kann somit zu dem Ansprechen des thermischen Überlastschutzes führen, so daß dann der Antriebsmotor 13 so lange stillgesetzt ist, bis die Sicherheitstemperatur wieder ausreichend weit unterschritten ist. In der Regel wird an der betreffende Spulstelle außerdem Rotlicht gesetzt und damit dem Bedienpersonal angezeigt, das ein Maschinenfehler vorliegt. während dieser Dadurch entstehen Stillstandszeiten, beispielsweise bei dem Ausführungsbeispiel einer Spulstelle, die zu einem Wirkungsgradverlust der betreffenden Spulstelle und damit der Spulmaschine führen.However, if several braking operations have to be carried out within a short period of time, the thermal load on the drive motor 13 can become very high.
Typically, such drive motors are therefore provided with thermal overload protection, which ensures that the drive motor 13 switches off when a safety temperature is reached and cannot be switched on again. A multiple braking of the grooved drum 10 within a short time can thus lead to the response of the thermal overload protection, so that the drive motor 13 is then stopped until the safety temperature is again sufficiently far below. As a rule, red light is also set at the winding unit in question, thus indicating to the operating personnel that there is a machine fault. During this, downtimes occur, for example in the embodiment of a winding unit, which lead to a loss in efficiency of the winding unit in question and thus of the winding machine.

Um diese durch thermische Überlastung beim Bremsen verursachten Stillstandszeiten zu vermeiden, ist gemäß der Erfindung vorgesehen, daß ständig die momentane thermische Belastung des Antriebsmotors 13 erfaßt wird, und daß in Abhängigkeit davon die Stärke des Bremsstromes für den folgenden Bremsvorgang so ausgewählt wird, daß sichergestellt ist, daß keine thermische Überlastung auftritt. Damit wird zwar nicht bei jedem Bremsvorgang mit der kürzesten theoretisch möglichen Bremszeit gebremst, jedoch erfolgt das Bremsen mit der technisch zulässig kürzesten, eine thermische Überlastung des Antriebsmotors 13 vermeidenden, Bremszeit.This is due to thermal overload when braking To avoid downtimes caused is according to the Invention provided that the current thermal constantly Load of the drive motor 13 is detected, and that in Depending on the strength of the braking current for the following braking process is selected so that ensures is that there is no thermal overload. So that will not with the shortest during every braking operation theoretically possible braking time braked, but it does Brakes with the technically shortest, a thermal Overloading the drive motor 13 avoiding braking time.

Bei dem Ausführungsbeispiel gemäß Fig.1 gibt ein Spulstellenrechner 14 die Stromstärke und Stromrichtung vor, mit welcher der Antriebsmotor 13 beaufschlagt wird. Damit bestimmt der Spulstellenrechner 14 einerseits die Drehzahl des Antriebsmotors 13 und andererseits, in Abhängigkeit vom thermischen Belastungszustand des Antriebsmotors 13 dessen Bremsverhalten. Der Spulstellenrechner 14 verarbeitet Informationen eines (nicht dargestellten) Zentralrechners, die ihm zum Beispiel über einen Maschinenbus 21 zugestellt werden. Diese Informationen können beispielsweise die Spulgeschwindigkeit oder die Drehzahl des Antriebsmotors 13 betreffen, ggf. auch um Bildstörungen zur Vermeidung von Bildwickeln auf der Kreuzspule 11 zu erzielen.
Die Signale des Spulstellenrechners 14, die über eine Leitung 22 an eine Endstufe 15 gelangen, werden dort entsprechend verarbeitet. Das heißt, die Endstufe 15 leitet den Strom phasengerecht an die Wicklungen des Antriebsmotors 13 weiter. Hierzu verwertet die Endstufe 15 auch Informationen eines Rotorlagegebers 16.
Die an einem Polring 17 des Antriebsmotors 13 erfaßte Ist-Geschwindigkeit oder Ist-Drehzahl des Antriebsmotors 13 wird zur Drehzahlregelung an den Spulstellenrechner 14 zurückgemeldet.
Die erfaßte Ist-Geschwindigkeit des Antriebsmotors 13 kann auch für weitere Funktionen an der Spulstelle verwertet werden, sie kann beispielsweise zu einem Reiniger geführt wird, der abhängig von der Ist-Geschwindigkeit die Meßintervalle für das Überwachen des Fadens 12 festlegt. In the exemplary embodiment according to FIG. 1, a winding station computer 14 specifies the current strength and current direction with which the drive motor 13 is applied. In this way, the winding unit computer 14 determines the speed of the drive motor 13 on the one hand and, on the other hand, its braking behavior as a function of the thermal load condition of the drive motor 13. The winding unit computer 14 processes information from a central computer (not shown) which is sent to it, for example, via a machine bus 21. This information can relate, for example, to the winding speed or the rotational speed of the drive motor 13, possibly also to achieve image disturbances to avoid image winding on the cheese 11.
The signals from the winding station computer 14, which reach a power amplifier 15 via a line 22, are processed there accordingly. That is, the output stage 15 passes the current in phase to the windings of the drive motor 13. For this purpose, the output stage 15 also uses information from a rotor position sensor 16.
The actual speed or actual speed of the drive motor 13 detected on a pole ring 17 of the drive motor 13 is reported back to the winding station computer 14 for speed control.
The detected actual speed of the drive motor 13 can also be used for further functions at the winding unit, for example it can be passed to a cleaner which determines the measuring intervals for monitoring the thread 12 depending on the actual speed.

Der Spulstellenrechner 14 verwertet auch die Information über die momentane thermische Belastung des Antriebsmotors 13. Wie in Fig.1 angedeutet ist, kann hierzu dem Antriebsmotor 13 ein thermischer Sensor 18 zugeordnet sein, dessen Signal in den Spulstellenrechner 14 eingegeben wird.The winding unit computer 14 also uses the information about the current thermal load on the drive motor 13. As indicated in FIG. 1, the drive motor 13 can do this a thermal sensor 18 can be assigned, the signal in the winding unit computer 14 is entered.

Der Spulstellenrechner 14 kann jedoch auch, wie in Fig 2 angedeutet, die momentane thermische Belastung des Antriebsmotors 13 errechnen, indem er die Strombeaufschlagung des Antriebsmotors 13 über die Zeit erfaßt.
Der Spulstellenrechner 14 weist in diesem Fall einen Integrator 20 sowie einen Speicher 19 auf. Im Speicher 19 sind dabei eine Vielzahl von Trommellastwertbereichen mit ihren zugehörigen Bremswerten hinterlegt. Anhand dieser Daten legt der Spulstellenrechner 14 dann für jeden Bremsvorgang die Stärke des Bremsstroms, mit dem der Antriebsmotor 13 maximal beaufschlagt werden kann, derart fest, daß eine möglichst kurze Bremszeit erzielt wird, jedoch der Bremsstrom nicht zu einer unzulässigen thermischen Überlastung des Antriebsmotors 13 führt.However, as indicated in FIG. 2, the winding station computer 14 can also calculate the instantaneous thermal load on the drive motor 13 by detecting the current applied to the drive motor 13 over time.
In this case, the winding unit computer 14 has an integrator 20 and a memory 19. A large number of drum load value ranges with their associated braking values are stored in the memory 19. On the basis of this data, the winding station computer 14 then determines the strength of the braking current with which the drive motor 13 can be subjected to a maximum for each braking operation in such a way that the shortest possible braking time is achieved, but the braking current does not lead to an impermissible thermal overload of the drive motor 13 .

Zweckmäßigerweise sind im Speicher 19 des Spulstellenrechners 14 eingegrenzte Bereiche für die momentane thermische Belastung des Antriebsmotors 13 sowie die zugehörigen noch zulässigen maximalen Stärken der Bremsströme abgelegt. Vor dem Einleiten eines Bremsvorganges kann somit der Spulstellenrechner 14 in einfacher Weise abfragen, in welchem Bereich die momentane thermische Belastung liegt und dann den Bremsstrom mit geeigneter Stärke vorgeben.Expediently are in the memory 19 of the winding station computer 14 limited areas for the current thermal Load on the drive motor 13 and the associated still permissible maximum strengths of the braking currents. In front the initiation of a braking process can Query winding station computer 14 in a simple manner, in which Range is the current thermal load and then the Specify the braking current with a suitable strength.

Claims (6)

Verfahren zum Stillsetzen eines elektrischen Antriebsmotors, insbesondere eines Antriebsmotors zum Antreiben einer Nutentrommel einer Spulstelle einer Spulmaschine, der zum Bremsen gegensinnig zu einem Nennstrom mit einer Bremsstrom beaufschlagt wird, dessen Stärke ein Mehrfaches des Nennstroms betragen kann,
dadurch gekennzeichnet,
daß die momentane thermische Belastung des Antriebsmotors erfaßt und die Stärke des Bremsstroms abhängig von dieser thermischen Belastung des Antriebsmotors ausgewählt wird.Method for stopping an electric drive motor, in particular a drive motor for driving a slot drum of a winding unit of a winding machine, which is braked with a braking current in opposite directions to a nominal current, the strength of which can be a multiple of the nominal current,
characterized,
that the instantaneous thermal load on the drive motor is detected and the strength of the braking current is selected as a function of this thermal load on the drive motor. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die momentane thermische Belastung des Antriebsmotors aus der Strombeaufschlagung des Antriebsmotors über die Zeit erfaßt wird.A method according to claim 1, characterized in that the current thermal load on the drive motor from the current applied to the drive motor via the Time is recorded. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß abgestufte Werte für Bremsströme abgelegt sind, denen jeweils ein Bereich einer thermischen Belastung zugeordnet ist. A method according to claim 1 or 2, characterized characterized that graded values for braking currents are stored, each of which is an area of a thermal load is assigned. Bremsschaltung für einen elektrischen Antriebsmotor, insbesondere für einen Antriebsmotor zum Antreiben einer Nutentrommel einer Spulstelle einer Spulmaschine, die den Antriebsmotor zum Bremsen gegensinnig zum Nennstrom mit Bremsstrom beaufschlagt, dessen Stärke ein Mehrfaches des Nennstroms betragen kann,
dadurch gekennzeichnet,
daß Mittel (18) zum Erfassen der momentanen thermischen Belastung des Antriebsmotors (13) und Mittel (14) zum Auswählen des für einen Bremsvorgang anzulegenden Bremsstroms in Abhängigkeit von dieser thermischen Belastung vorgesehen sind.Brake circuit for an electric drive motor, in particular for a drive motor for driving a slot drum of a winding unit of a winding machine, which applies braking current to the drive motor for braking in the opposite direction to the rated current, the strength of which can be a multiple of the rated current,
characterized,
that means (18) for detecting the instantaneous thermal load on the drive motor (13) and means (14) for selecting the braking current to be applied for a braking operation are provided as a function of this thermal load. Bremsschaltung nach Anspruch 4, dadurch gekennzeichnet, daß die Mittel (14) zum Auswählen Mittel zum Zuordnen der erfaßten momentanen thermischen Belastung zu in einem Speicher abgelegten Werten thermischer Belastungen und Mittel zum Aufrufen eines Bremsstromes mit einer für den zugeordneten Wert vorgegebener Stärke vorgesehen sind.Brake circuit according to claim 4, characterized in that the means (14) for selecting means for assigning the detected instantaneous thermal load to in stored values of thermal loads and means for calling a braking current with one for the assigned value of predetermined strength is provided are. Bremsschaltung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Werte von thermischen Belastungen in Form von abgestuften Bereichen in dem Speicher abgelegt sind, wobei zu jedem Bereich eine Stärke des Bremsstroms vorgegeben ist.Brake circuit according to claim 4 or 5, characterized characterized in that the values of thermal Loads in the form of graded areas in the Memory are stored, with one for each area The strength of the braking current is specified.
EP99110202A 1998-08-13 1999-05-26 Method to stop an electric motor and circuit to break it Expired - Lifetime EP0979793B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19836701 1998-08-13
DE19836701A DE19836701A1 (en) 1998-08-13 1998-08-13 Method of stopping an electric drive motor and brake circuit

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EP0979793A2 true EP0979793A2 (en) 2000-02-16
EP0979793A3 EP0979793A3 (en) 2000-03-29
EP0979793B1 EP0979793B1 (en) 2003-03-26

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US (1) US6232732B1 (en)
EP (1) EP0979793B1 (en)
JP (1) JP4404409B2 (en)
DE (2) DE19836701A1 (en)
TR (1) TR199901947A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134732A1 (en) * 2006-05-18 2007-11-29 Oerlikon Textile Gmbh & Co. Kg Delivery device
CN101780903B (en) * 2009-01-15 2013-01-02 欧瑞康纺织有限及两合公司 Coiling apparatus for producing winding bobbin textile machinery and operation method thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040109A1 (en) * 2000-08-17 2002-02-28 Schlafhorst & Co W Bearing housing for a drive device of a textile machine producing cross-wound bobbins
DE10040106A1 (en) 2000-08-17 2002-02-28 Schlafhorst & Co W Winding device for a textile machine producing cross-wound bobbins
DE10040108A1 (en) * 2000-08-17 2002-02-28 Schlafhorst & Co W Coil frame for a textile machine producing cross-wound bobbins
JP2003083442A (en) 2001-09-07 2003-03-19 Jatco Ltd Vehicle speed sensor malfunction-time gear shift controller for automatic transmission
DE102009007448A1 (en) 2009-02-04 2010-08-05 Oerlikon Textile Gmbh & Co. Kg Method for operating winding apparatus of cross winding machine, involves slowing down winding drum such that limit value of slip between drum and running bobbin is not exceeded, and slowing down bobbin during interruption of thread
DE102020122682A1 (en) 2020-08-31 2022-03-03 Saurer Spinning Solutions Gmbh & Co. Kg Bobbin frame of a winding device of a textile machine producing cross-wound bobbins
DE102021130062A1 (en) 2021-11-17 2023-05-17 Maschinenfabrik Rieter Ag Method for operating a winding station of a winding machine and winding machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868554A (en) * 1973-12-26 1975-02-25 Gen Electric Current limit system for DC motor control
US4221344A (en) * 1978-03-15 1980-09-09 Barmag Barmer Maschinenfabrik Aktiengesellschaft Apparatus and method for controlling textile winder package drive motors and traverse device motors
US4291355A (en) * 1979-07-30 1981-09-22 General Electric Company Programmable overload circuit
US5512883A (en) * 1992-11-03 1996-04-30 Lane, Jr.; William E. Method and device for monitoring the operation of a motor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106898A1 (en) * 1971-02-13 1972-08-24 Siemens Ag Spinning turbine with a speed-controlled, brakable electric drive motor
US4173732A (en) * 1978-02-09 1979-11-06 Westinghouse Electric Corp. Dynamic brake current limiting control apparatus and method
US4581565A (en) * 1983-03-01 1986-04-08 Storage Technology Corporation H-bridge power amplifier and method for controlling the same
DE3521152C2 (en) * 1985-06-13 1996-05-30 Schlafhorst & Co W Method and device for avoiding image winding when winding a cheese
DE3805662A1 (en) * 1988-02-24 1989-09-07 Skf Textilmasch Komponenten Ring spinning machine
DE3911505C2 (en) * 1989-04-08 1999-10-14 Schlafhorst & Co W Method and winding unit for producing a faultless cheese
DE9007406U1 (en) * 1990-03-21 1991-08-22 Truetzschler Gmbh & Co Kg, 4050 Moenchengladbach, De
DE4021663A1 (en) * 1990-07-07 1992-01-09 Mulfingen Elektrobau Ebm CONTROL CIRCUIT WITH ANTI-BLOCK PROTECTION DEVICE FOR A COLLECTORLESS DC MOTOR
DE19519542B4 (en) * 1994-06-29 2004-05-13 Saurer Gmbh & Co. Kg Method and device for avoiding image winding
KR960039576A (en) * 1995-04-28 1996-11-25 이나바 세이우에몬 Regenerative resistance protection method and protection device of inverter for servo motor
JP2905119B2 (en) * 1995-06-30 1999-06-14 株式会社東芝 Washing machine
JPH09110298A (en) 1995-10-11 1997-04-28 Toray Eng Co Ltd Braking method of spindle driving type winder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868554A (en) * 1973-12-26 1975-02-25 Gen Electric Current limit system for DC motor control
US4221344A (en) * 1978-03-15 1980-09-09 Barmag Barmer Maschinenfabrik Aktiengesellschaft Apparatus and method for controlling textile winder package drive motors and traverse device motors
US4291355A (en) * 1979-07-30 1981-09-22 General Electric Company Programmable overload circuit
US5512883A (en) * 1992-11-03 1996-04-30 Lane, Jr.; William E. Method and device for monitoring the operation of a motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134732A1 (en) * 2006-05-18 2007-11-29 Oerlikon Textile Gmbh & Co. Kg Delivery device
CN101448726B (en) * 2006-05-18 2012-01-18 欧瑞康纺织有限及两合公司 Delivery device
CN101780903B (en) * 2009-01-15 2013-01-02 欧瑞康纺织有限及两合公司 Coiling apparatus for producing winding bobbin textile machinery and operation method thereof

Also Published As

Publication number Publication date
JP4404409B2 (en) 2010-01-27
DE19836701A1 (en) 2000-02-17
US6232732B1 (en) 2001-05-15
TR199901947A2 (en) 2000-03-21
JP2000060170A (en) 2000-02-25
EP0979793B1 (en) 2003-03-26
DE59904698D1 (en) 2003-04-30
EP0979793A3 (en) 2000-03-29
TR199901947A3 (en) 2000-03-21

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