EP0838422B1 - Apparatus for winding a yarn on a bobbin - Google Patents

Apparatus for winding a yarn on a bobbin Download PDF

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Publication number
EP0838422B1
EP0838422B1 EP96117256A EP96117256A EP0838422B1 EP 0838422 B1 EP0838422 B1 EP 0838422B1 EP 96117256 A EP96117256 A EP 96117256A EP 96117256 A EP96117256 A EP 96117256A EP 0838422 B1 EP0838422 B1 EP 0838422B1
Authority
EP
European Patent Office
Prior art keywords
carrier
yarn guide
yarn
energy storage
motion
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.)
Expired - Lifetime
Application number
EP96117256A
Other languages
German (de)
French (fr)
Other versions
EP0838422A1 (en
Inventor
Lukas Kunz
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.)
SSM Schaerer Schweiter Mettler AG
Original Assignee
SSM Schaerer Schweiter Mettler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SSM Schaerer Schweiter Mettler AG filed Critical SSM Schaerer Schweiter Mettler AG
Priority to EP96117256A priority Critical patent/EP0838422B1/en
Priority to DE59609889T priority patent/DE59609889D1/en
Priority to TW086115851A priority patent/TW455563B/en
Priority to KR1019970055153A priority patent/KR19980033186A/en
Priority to US08/957,946 priority patent/US5908170A/en
Priority to JP29580497A priority patent/JP3997364B2/en
Publication of EP0838422A1 publication Critical patent/EP0838422A1/en
Application granted granted Critical
Publication of EP0838422B1 publication Critical patent/EP0838422B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2827—Traversing devices with a pivotally mounted guide arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B65H54/385—Preventing edge raising, e.g. creeping arrangements
    • B65H54/386—Preventing edge raising, e.g. creeping arrangements with energy storing means for recovering the kinetic energy at the end of the traversing stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/60—Details of processes or procedures
    • B65H2557/61—Details of processes or procedures for calibrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a device for winding a thread a bobbin with an oscillating drivable thread guide and with energy storage to influence the deceleration and acceleration of the thread guide when reversing its movement.
  • Energy stores come with those driven back and forth parallel to the coil axis Thread guides for use. They are designed as spring-damper systems, the Spring is stretched and relaxed practically in each case over a stroke length, whereby the speed of the thread guides is limited. They are also Energy storage arranged stationary, so that every change in the stroke of the thread guide a corresponding adjustment of the position of the energy store requires.
  • the invention is now to provide a winding device that is high Accelerations of the thread guide allowed at the reversal points and with regard to the Structure of the winding offers as much freedom as possible.
  • the thread guide and its drive be inexpensive and as trouble-free as possible enable.
  • the thread guide is finger-like and is mounted on an axis oriented perpendicular to the coil axis that the Energy storage devices are designed to influence deceleration and acceleration the thread guide only in a short area of its movement around the turning point takes place, and that the position of the energy store is adjustable.
  • the finger-shaped thread guide is inexpensive on the one hand and very simple and on the other hand Adaptable to changed coil parameters without effort.
  • the short area of influence the deceleration and acceleration of the thread guide leads to a marked increase of its speed and the adjustability of the position of the energy store enables changes in the stroke of the thread guide without major mechanical intervention.
  • DE-B-1 131 575 describes a winding device with a finger-shaped thread guide known, which is driven by a traversing rod via a diamond-shaped double lever is, the double lever at the reversal points of the traversing movement against stop blocks pushes and is thereby pivoted relative to its normal position.
  • the provision of the double lever in its normal position takes place via springs acting on the double lever.
  • a second preferred embodiment of the winding device according to the invention is characterized in that the energy store on an oscillating around said axis drivable carrier are attached.
  • the position of the energy store is adjusted by changing the amplitude of the Movement of the wearer.
  • the area of influence can be influenced by attaching the energy store to the carrier the deceleration and acceleration of the thread guide are precisely and easily set become.
  • the possibility of adjusting the position of the energy storage by a simple one Intervention in the movement geometry of the wearer increases the flexibility of the device very extraordinary.
  • the winding unit shown in the figures consists essentially of a motor drivable spindle 1 for receiving a coil sleeve 2, on which a coil 3, for example a cheese, is wound up, and from a device 4 for laying a thread F which is drawn off from a supply spool, not shown.
  • Spindle 1, coil sleeve 2 and coil 3 are not shown in Fig. 2 and by a dash-dotted line S symbolizing the axis of the coil 3 is indicated.
  • the coil 3 lies along a surface line on a freely rotatable roller 5, which is on a suitable Carrier part of the winding machine is mounted.
  • Thread laying 4 which is used to manufacture the most important element is a finger or pointer-shaped thread guide 6 on a shaft driven by a motor 7 8 is mounted.
  • the shaft 8 is perpendicular to the coil axis S and perpendicular to the plane of the drawing oriented so that the thread guide 6 oscillates during operation of the winding unit Movement in the plane perpendicular to the shaft 8 is carried out.
  • the thread guide 6 is provided at a free end with a longitudinal slot 9 in which the thread F is guided.
  • Guide rail 10 is arranged, which is partially wrapped by the thread F.
  • the string F runs from the supply spool, not shown, to the guide rail as shown 10 and from this through the longitudinal slot 9 of the thread guide 6 to the roller 5.
  • the mutual Location of thread guide 6 and guide rail 10 and the length of the longitudinal slot 9 are selected so that the thread F during the movement of the thread guide 6
  • the bottom of the longitudinal slot 9 does not touch. This ensures that the thread course from the guide rail 10 to the coil 3 always the same, because of the roller 5 also has geometry independent of the diameter of the coil 3.
  • the thread guide 6 is by a finger or pointer-like attached to a hub 11 Organ formed.
  • the hub 11 is fixed on the shaft 8 of the motor 7.
  • the motor 7 becomes the thread guide 6 in one or the other Panned towards.
  • the maximum stroke of this swiveling movement is shown in FIG designated by the reference symbol H.
  • the thread F is at the pivoting movement of the thread guide 6 always moves parallel to the bobbin axis S, and the so-called drag length, that is the thread length from thread guide 6 to Coil 3 is always the same size.
  • the inertia of the motor 7 is so out of the inertia Hub 11, thread guide 6 and thread F formed load matched that an ideal efficiency results.
  • the motor 7 is a first sensor 12 for detecting the rotational position of the hub 11 and thus assigned to the stroke position of the thread guide 6.
  • the first sensor 12 is on a transmitting and a receiving diode (not shown) existing photoelectric Sensor which detects the rotational movement of a disk rigidly connected to the hub 11 (not shown) scans. For this purpose, the disk can be scanned with suitable optics Markings, for example with holes arranged along an arc or slots.
  • the sensor signal is fed to a controller 13 which checks whether the thread guide 6 is at its desired position at a specific point in time located. In the event of deviations between the actual value and the target value, control stage 13 indicates the engine 7 a corresponding control signal.
  • the number of marks on the The disc and its dimension are chosen so that there is enough per stroke of the thread guide 6 positions of the thread guide 6 that can be checked by the first sensor 12, to produce a clean, closed precision winding.
  • the first sensor 12 always relates its monitoring to an initial position of the Thread guide 6, preferably to the zero point of its pivoting movement.
  • the Adjustment of the sensor 12 takes place in that the thread guide 6 first on one and then brought to the other reversal point, the first sensor 12 the number of markings corresponding to this stroke and from this the zero point calculated.
  • the sensor 12 thus knows the number of scanning pulses between the Zero point and the reversal points, so that at any time the position of the thread guide 6 corresponding to a certain scanning pulse is determined can be.
  • the latter enables extremely precise control of the motor 7, its Performance can be optimally used.
  • Another task of the controller 13 is the laying speed, which is in itself sinusoidal to linearize the thread.
  • sinusoidal means that the thread runs faster in the middle of the lifting movement than at the reversal points. This difference is compensated for by the controller 13 by this linear setpoints of the position of the thread guide 6 are offset with a sine function.
  • the energy stores are elastic or resilient mounted on a carrier 14
  • Storage elements 15 in the manner of air buffers, magnetic buffers, spring-loaded buffer plates or other suitable storage media.
  • the thread guide 6 points in the level of the memory elements 15 a rib-like projection 16, which at the time the beginning of the delay hits the memory element 15 and tensions it.
  • the storage element relaxes in the acceleration phase after the reversal point 15 and accelerates the thread guide 6.
  • the drive of the thread guide 6 can be set in this way be that the respective storage element 15 time of the start of the delay is positioned at the reversal point. Because at this time the engine 7 too starts braking, two braking torques are effective, that of the energy storage and that of the engine 7. The reverse also applies to the acceleration section.
  • the length of the distance over which the energy storage device is charged depends on the reversing stroke which in turn determines the quality of the spool.
  • the thread is on every point of the coil for the same length of time and no longer at the coil ends should remain, otherwise there will be marginal zones that become too dense. In practice is the length of the distance of the charge of the energy storage about 1 mm.
  • the carrier 14 of the storage elements 15 has approximately that Shape of a Y on. However, this should not be understood as restrictive. Rather is the shape of the carrier 14 can be selected within wide limits and can, for example, also be round or be fork-shaped.
  • the size of the stroke of this oscillating movement of the carrier 14 can Drive 17 or on the connecting element 18 with suitable means, for example with a stepper motor or with any linear or round drive become. If these adjustment means are electrical or magnetic and reproducible, Any lifting profile can be specified for the winding process.
  • the stroke of the pivoting movement of the carrier 14 defines the stroke of the thread guide 6, the carrier 14 executing a much shorter stroke movement and therefore also is driven much more slowly than the thread guide 6.
  • the distance between the storage elements 15 is chosen to be so large that the projection 16 of the thread guide 6 exactly at the time of the start of the deceleration meets the storage elements 15. In this case, the carrier 14 could be at rest remain.
  • the carrier 14 would have to with the mentioned distance between the storage elements 15 each slightly pivoted outside, and if the stroke of the thread guide 6 should be shorter, then this carrier 14 would each have to be pivoted somewhat inwards.
  • the stroke of the carrier 14 is therefore always very short compared to the stroke of the thread guide 6 Distance from the rest position shown in Fig. 2 to the end position at the stop the rib 16.
  • a second sensor 19 is used to monitor and control the movement of the carrier 14 provided, which is connected to the controller 13 like the first sensor 12.
  • the second sensor 19 is suitable for sensing the rotational movement of the carrier 14 Position sensor, for example a photoelectric sensor.
  • the carrier 14 is to this Purpose with suitable optically scannable markings, for example with holes or slots.
  • the sensor signal is fed to the controller 13, which checks whether the carrier 14 is at its current position at a certain point in time. In the event of a deviation between the actual value and the target value, the control stage 13 outputs a corresponding one to the drive motor 18 Signal off, so that the drive of the carrier 14 is delayed or accelerated. Since the signals from both the first and second sensors 12 and 19 are supplied to the control stage 13, a cross comparison is also carried out in this between the two sensor signals. This can cause any deviations in the Synchronism between the pivoting movements of the thread guide 6 on the one hand and the carrier 14 of the storage elements 15 on the other hand, and the two motors 7 and 18 can be adjusted accordingly.
  • the thread laying 4 described has the advantage that a high winding speed and achieved a high acceleration of the thread guide 6 in the reversal points becomes.
  • By in the deceleration and in the acceleration phase in the area of Energy storage 15 acting reversal points can be relatively much in the delay Energy is recovered and then used for acceleration, which results in low energy consumption.
  • the adjustability of the energy store 15 enables the stroke to be changed easily of the thread guide 6 and the arrangement of the energy storage 15 on the oscillating Carrier 14 allows a change in the stroke of the thread guide 6 by a merely changing the stroke of the carrier 14 and without mechanical adjustment of the position the energy store 15.
  • With the adjustability of the stroke of the oscillating movement of the carrier 14 with electrical or magnetic and reproducible means This opens up the possibility of producing coils with any winding structure.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Control Of Linear Motors (AREA)

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Aufwickeln eines Fadens auf eine Spule, mit einem oszillierend antreibbaren Fadenführer und mit Energiespeichem zur Beeinflussung der Verzögerung und Beschleunigung des Fadenführers bei seiner Bewegungsumkehr.The present invention relates to a device for winding a thread a bobbin with an oscillating drivable thread guide and with energy storage to influence the deceleration and acceleration of the thread guide when reversing its movement.

Bei den bekannten Aufwickelvorrichtungen dieser Art werden im wesentlichen zwei Arten von Faderführern verwendet, solche, die von einem parallel zur Spulenachse orientierten Antriebsmittel, wie einem Riemen, einem Seil oder einer Saite, und solche, die um eine senkrecht zur Spulenachse angeordnete Achse antreibbar und finger- oder zeigerartig ausgebildet sind. Im letzteren Fall ist der Fadenführer nur relativ langsam antreibbar und kann nur zur Wicklung von Spulen mit Parallelwicklungen und keinesfalls von Kreuzspulen verwendet werden. Wegen der niedrigen Geschwindigkeit der Fadenführer werden hier in der Regel keine Energiespeicher verwendet.In the known winding devices of this type there are essentially two types used by fader guides, those that are oriented parallel to the coil axis Drive means, such as a belt, a rope or a string, and those which drivable about an axis arranged perpendicular to the coil axis and finger-like or pointer-like are trained. In the latter case, the thread guide can only be driven relatively slowly and can only be used for winding coils with parallel windings and never used by packages. Because of the low speed of the thread guides no energy storage devices are usually used here.

Energiespeicher kommen bei den parallel zur Spulenachse hin- und hergehend angetriebenen Fadenführern zum Einsatz. Sie sind als Feder-Dämpfer-Systeme ausgebildet, deren Feder praktisch jeweils über eine Hublänge gespannt und entspannt wird, wodurch eine Beschränkung der Geschwindigkeit der Fadenführer erfolgt. Ausserdem sind die Energiespeicher ortsfest angeordnet, so dass jede Änderung des Hubs des Fadenführers eine entsprechende Anpassung der Position der Energiespeicher erfordert.Energy stores come with those driven back and forth parallel to the coil axis Thread guides for use. They are designed as spring-damper systems, the Spring is stretched and relaxed practically in each case over a stroke length, whereby the speed of the thread guides is limited. They are also Energy storage arranged stationary, so that every change in the stroke of the thread guide a corresponding adjustment of the position of the energy store requires.

Durch die Erfindung soll nun eine Aufwickelvorrichtung angegeben werden, die hohe Beschleunigungen des Fadenführers an den Umkehrpunkten erlaubt und hinsichtlich des Aufbaus der Wicklung möglichst viele Freiheiten bietet. Ausserdem sollen der Fadenführer und sein Antrieb kostengünstig sein und einen möglichst störungsfreien Betrieb ermöglichen. The invention is now to provide a winding device that is high Accelerations of the thread guide allowed at the reversal points and with regard to the Structure of the winding offers as much freedom as possible. In addition, the thread guide and its drive be inexpensive and as trouble-free as possible enable.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass der Fadenführer fingerartig ausgebildet und auf einer senkrecht zur Spulenachse orientierten Achse gelagert ist, dass die Energiespeicher so ausgebildet sind, dass die Beeinflussung der Verzögerung und Beschleunigung des Fadenführers nur in einem kurzen Bereich seiner Bewegung um den Umkehrpunkt erfolgt, und dass die Position der Energiespeicher verstellbar ist.This object is achieved according to the invention in that the thread guide is finger-like and is mounted on an axis oriented perpendicular to the coil axis that the Energy storage devices are designed to influence deceleration and acceleration the thread guide only in a short area of its movement around the turning point takes place, and that the position of the energy store is adjustable.

Der fingerförmige Fadenführer ist einerseits kostengünstig und andererseits sehr einfach und ohne Aufwand an geänderte Spulenparameter anpassbar. Der kurze Bereich der Beeinflussung der Verzögerung und Beschleunigung des Fadenführers führt zu einer markanten Erhöhung von dessen Geschwindigkeit und die Verstellbarkeit der Position der Energiespeicher ermöglicht Änderungen des Hubs des Fadenführers ohne grosse mechanische Eingriffe.The finger-shaped thread guide is inexpensive on the one hand and very simple and on the other hand Adaptable to changed coil parameters without effort. The short area of influence the deceleration and acceleration of the thread guide leads to a marked increase of its speed and the adjustability of the position of the energy store enables changes in the stroke of the thread guide without major mechanical intervention.

Aus der DE-B-1 131 575 ist eine Aufwickelvorrichtung mit einem fingerförmigen Fadenführer bekannt, der über einen rhombenförmigen Doppelhebel von einer Changierstange angetrieben wird, wobei der Doppelhebel an den Umkehrpunkten der Changierbewegung gegen Anschlagblöcke stösst und dadurch gegenüber seiner Normallage versschwenkt wird. Die Rückstellung des Doppelhebels in seine Normallage erfolgt über am Doppelhebel angreifende Federn.DE-B-1 131 575 describes a winding device with a finger-shaped thread guide known, which is driven by a traversing rod via a diamond-shaped double lever is, the double lever at the reversal points of the traversing movement against stop blocks pushes and is thereby pivoted relative to its normal position. The provision of the double lever in its normal position takes place via springs acting on the double lever.

Eine erste bevorzugte Ausführungsform der erfindungsgemässen Aufwickelvorrichtung ist dadurch gekennzeichnet, dass vom Beginn der Verzögerung des Fadenführers bis zum Umkehrpunkt eine Umwandlung der kinetischen Energie des Fadenführers in potentielle und ab Erreichen des Umkehrpunkts eine Rückgabe dieser potentiellen Energie an den Fadenführer erfolgt.This is a first preferred embodiment of the winding device according to the invention characterized that from the beginning of the deceleration of the thread guide to the turning point a conversion of the kinetic energy of the thread guide into potential and down When the reversal point is reached, this potential energy is returned to the thread guide he follows.

Eine zweite bevorzugte Ausführungsform der erfindungsgemässen Aufwickelvorrichtung ist dadurch gekennzeichnet, dass die Energiespeicher auf einem um die genannte Achse oszillierend antreibbaren Träger befestigt sind.A second preferred embodiment of the winding device according to the invention is characterized in that the energy store on an oscillating around said axis drivable carrier are attached.

Bei einer dritten bevorzugten Ausführungsform der erfindungsgemässen Aufwickelvorrichtung erfolgt die Verstellung der Position der Energiespeicher durch Änderung der Amplitude der Bewegung des Trägers.In a third preferred embodiment of the winding device according to the invention the position of the energy store is adjusted by changing the amplitude of the Movement of the wearer.

Durch die Befestigung der Energiespeicher auf dem Träger kann der Bereich der Beeinflussung der Verzögerung und Beschleunigung des Fadenführers exakt und einfach eingestellt werden. Die Möglichkeit der Verstellung der Position der Energiespeicher durch einen einfachen Eingriff in die Bewegungsgeometrie des Trägers erhöht die Flexibilität der Vorrichtung ganz ausserordentlich. The area of influence can be influenced by attaching the energy store to the carrier the deceleration and acceleration of the thread guide are precisely and easily set become. The possibility of adjusting the position of the energy storage by a simple one Intervention in the movement geometry of the wearer increases the flexibility of the device very extraordinary.

Im folgenden wird die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert; es zeigt:

Fig. 1
eine schematische Darstellung einer Spulstelle einer Spulmaschine, in Blickrichtung parallel zur Spulenachse; und
Fig. 2
eine Ansicht in Richtung des Pfeiles II von Figur 1.
The invention is explained in more detail below on the basis of an exemplary embodiment illustrated in the drawings; it shows:
Fig. 1
is a schematic representation of a winding unit of a winding machine, in the direction of view parallel to the bobbin axis; and
Fig. 2
a view in the direction of arrow II of Figure 1.

Die in den Figuren dargestellte Spulstelle besteht im wesentlichen aus einer motorisch antreibbaren Spindel 1 zur Aufnahme einer Spulenhülse 2, auf die eine Spule 3, beispielsweise eine Kreuzspule, aufgewickelt wird, und aus einer Einrichtung 4 zur Verlegung eines Fadens F, der von einer nicht dargestellten Vorratsspule abgezogen wird. Spindel 1, Spulenhülse 2 und Spule 3 sind in Fig. 2 nicht eingezeichnet und durch eine strichpunktierte, die Achse der Spule 3 symbolisierende Linie S angedeutet. Die Spule 3 liegt längs einer Mantellinie auf einer frei drehbaren Walze 5 auf, die auf einem geeigneten Trägerteil der Spulmaschine montiert ist. Die Fadenverlegung 4, die zur Herstellung der gewünschten Wicklung dient, enthält als wesentlichstes Element einen fingeroder zeigerförmigen Fadenführer 6, der auf einer von einem Motor 7 angetriebenen Welle 8 montiert ist. Die Welle 8 ist senkrecht zur Spulenachse S und senkrecht zur Zeichnungsebene orientiert, so dass der Fadenführer 6 im Betrieb der Spulstelle eine oszillierende Bewegung in der Ebene senkrecht zur Welle 8 vollführt.The winding unit shown in the figures consists essentially of a motor drivable spindle 1 for receiving a coil sleeve 2, on which a coil 3, for example a cheese, is wound up, and from a device 4 for laying a thread F which is drawn off from a supply spool, not shown. Spindle 1, coil sleeve 2 and coil 3 are not shown in Fig. 2 and by a dash-dotted line S symbolizing the axis of the coil 3 is indicated. The coil 3 lies along a surface line on a freely rotatable roller 5, which is on a suitable Carrier part of the winding machine is mounted. Thread laying 4, which is used to manufacture the most important element is a finger or pointer-shaped thread guide 6 on a shaft driven by a motor 7 8 is mounted. The shaft 8 is perpendicular to the coil axis S and perpendicular to the plane of the drawing oriented so that the thread guide 6 oscillates during operation of the winding unit Movement in the plane perpendicular to the shaft 8 is carried out.

Der Fadenführer 6 ist an einem freien Ende mit einem Längsschlitz 9 versehen, in dem der Faden F geführt ist. In Laufrichtung des Fadens F ist vor dem Fadenführer 6 eine Führungsschiene 10 angeordnet, die vom Faden F teilweise umschlungen ist. Der Faden F läuft darstellungsgemäss von der nicht dargestellten Vorratsspule zur Führungsschiene 10 und von dieser durch den Längsschlitz 9 des Fadenführers 6 zur Walze 5. Die gegenseitige Lage von Fadenführer 6 und Führungsschiene 10 und die Länge des Längsschlitzes 9 sind so gewählt, dass der Faden F bei der Bewegung des Fadenführers 6 den Grund des Längsschlitzes 9 nicht berührt. Dadurch ist gewährleistet, dass der Fadenverlauf von der Führungsschiene 10 bis zur Spule 3 immer die gleiche, wegen der Walze 5 auch vom Durchmesser der Spule 3 unabhängige, Geometrie aufweist. The thread guide 6 is provided at a free end with a longitudinal slot 9 in which the thread F is guided. In the running direction of the thread F there is one in front of the thread guide 6 Guide rail 10 is arranged, which is partially wrapped by the thread F. The string F runs from the supply spool, not shown, to the guide rail as shown 10 and from this through the longitudinal slot 9 of the thread guide 6 to the roller 5. The mutual Location of thread guide 6 and guide rail 10 and the length of the longitudinal slot 9 are selected so that the thread F during the movement of the thread guide 6 The bottom of the longitudinal slot 9 does not touch. This ensures that the thread course from the guide rail 10 to the coil 3 always the same, because of the roller 5 also has geometry independent of the diameter of the coil 3.

Der Fadenführer 6 ist durch ein an einer Nabe 11 befestigtes finger- oder zeigerartiges Organ gebildet. Die Nabe 11 ist auf der Welle 8 des Motors 7 fixiert. Bei Antrieb des Motors 7 wird je nach dessen Rotationsrichtung der Fadenführer 6 in die eine oder andere Richtung geschwenkt. Der maximale Hub dieser Schwenkbewegung ist in Fig. 2 mit dem Bezugszeichen H bezeichnet. Wegen der Führungsschiene 10 wird der Faden F bei der Schwenkbewegung des Fadenführers 6 immer parallel zur Spulenachse S bewegt, und die sogenannte Schlepplänge, das ist die Fadenlänge vom Fadenführer 6 bis zur Spule 3, ist immer gleich gross. Die Trägheit des Motors 7 ist so an die Trägheit der aus Nabe 11, Fadenführer 6 und Faden F gebildeten Last angeglichen, dass ein idealer Wirkungsgrad resultiert.The thread guide 6 is by a finger or pointer-like attached to a hub 11 Organ formed. The hub 11 is fixed on the shaft 8 of the motor 7. When driving the Depending on its direction of rotation, the motor 7 becomes the thread guide 6 in one or the other Panned towards. The maximum stroke of this swiveling movement is shown in FIG designated by the reference symbol H. Because of the guide rail 10, the thread F is at the pivoting movement of the thread guide 6 always moves parallel to the bobbin axis S, and the so-called drag length, that is the thread length from thread guide 6 to Coil 3 is always the same size. The inertia of the motor 7 is so out of the inertia Hub 11, thread guide 6 and thread F formed load matched that an ideal efficiency results.

Dem Motor 7 ist ein erster Sensor 12 zur Detektion der Drehposition der Nabe 11 und damit der Hubposition des Fadenführers 6 zugeordnet. Der erste Sensor 12 ist ein aus einer Sende- und einer Empfangsdiode (nicht dargestellt) bestehender fotoelektrischer Sensor, der die Rotationsbewegung einer mit der Nabe 11 starr verbundenen Scheibe (nicht dargestellt) abtastet. Die Scheibe ist zu diesem Zweck mit geeigneten optisch abtastbaren Markierungen, beispielsweise mit entlang eines Kreisbogens angeordneten Löchern oder Schlitzen, versehen. Das Sensorsignal wird einer Steuerung 13 zugeführt, die überprüft, ob sich der Fadenführer 6 zu einem bestimmten Zeitpunkt an seiner Sollposition befindet. Bei Abweichungen zwischen Ist- und Sollwert gibt die Steuerstufe 13 an den Motor 7 ein entsprechendes Regelsignal ab. Die Anzahl der Markierungen auf der Scheibe und deren Dimension sind so gewählt, dass sich pro Hub des Fadenführers 6 genügend durch den ersten Sensor 12 überprüfbare Positionen des Fadenführers 6 ergeben, um eine saubere, geschlossene Präzisionswicklung herzustellen.The motor 7 is a first sensor 12 for detecting the rotational position of the hub 11 and thus assigned to the stroke position of the thread guide 6. The first sensor 12 is on a transmitting and a receiving diode (not shown) existing photoelectric Sensor which detects the rotational movement of a disk rigidly connected to the hub 11 (not shown) scans. For this purpose, the disk can be scanned with suitable optics Markings, for example with holes arranged along an arc or slots. The sensor signal is fed to a controller 13 which checks whether the thread guide 6 is at its desired position at a specific point in time located. In the event of deviations between the actual value and the target value, control stage 13 indicates the engine 7 a corresponding control signal. The number of marks on the The disc and its dimension are chosen so that there is enough per stroke of the thread guide 6 positions of the thread guide 6 that can be checked by the first sensor 12, to produce a clean, closed precision winding.

Der erste Sensor 12 bezieht seine Überwachung immer auf eine Ausgangsposition des Fadenführers 6, vorzugsweise auf den Nullpunkt von dessen Schwenkbewegung. Die Einstellung des Sensors 12 erfolgt dadurch, dass der Fadenführer 6 zuerst an den einen und dann an den anderen Umkehrpunkt gebracht wird, wobei der erste Sensor 12 die diesem Hub entsprechende Anzahl der Markierungen zählt und daraus den Nullpunkt berechnet. Der Sensor 12 kennt dadurch die Anzahl der Abtastimpulse zwischen dem Nullpunkt und den Umkehrpunkten, so dass anhand dieser Abtastimpulse jederzeit die einem bestimmten Abtastimpuls entsprechende Position des Fadenführers 6 bestimmt werden kann. Letzteres ermöglicht eine äusserst genaue Steuerung des Motors 7, dessen Leistung dadurch optimal ausgenützt werden kann.The first sensor 12 always relates its monitoring to an initial position of the Thread guide 6, preferably to the zero point of its pivoting movement. The Adjustment of the sensor 12 takes place in that the thread guide 6 first on one and then brought to the other reversal point, the first sensor 12 the number of markings corresponding to this stroke and from this the zero point calculated. The sensor 12 thus knows the number of scanning pulses between the Zero point and the reversal points, so that at any time the position of the thread guide 6 corresponding to a certain scanning pulse is determined can be. The latter enables extremely precise control of the motor 7, its Performance can be optimally used.

Eine weitere Aufgabe der Steuerung 13 besteht darin, die an sich sinusförmige Verlegegeschwindigkeit der Fadens zu linearisieren. Sinusförmig heisst in diesem Zusammenhang, dass der Faden in der Mitte der Hubbewegung schneller läuft als an den Umkehrpunkten. Diese Differenz wird durch die Steuerung 13 kompensiert, indem diese die linearen Sollwerte der Position des Fadenführers 6 mit einer Sinusfunktion verrechnet.Another task of the controller 13 is the laying speed, which is in itself sinusoidal to linearize the thread. In this context, sinusoidal means that the thread runs faster in the middle of the lifting movement than at the reversal points. This difference is compensated for by the controller 13 by this linear setpoints of the position of the thread guide 6 are offset with a sine function.

Im Bereich der Bewegungsumkehrpunkte des Fadenführers 6 sind Energiespeicher zur Beeinflussung der Verzögerung und Beschleunigung des Fadenführers 6 bei seiner Bewegungsumkehr vorgesehen. Der betreffende Energiespeicher wandelt ab Beginn der Verzögerung die kinetische Energie des Fadenführers 6 in potentielle Energie um, wodurch der Fadenführer verzögert wird. Nach Beendigung der Verzögerung, sobald der Umkehrpunkt erreicht ist, wird die gespeicherte Energie wieder an das bewegte System abgegeben, wodurch der Fadenführer 6 wieder beschleunigt wird. Theoretisch (bei Vernachlässigung der Reibung) wird der Fadenführer 6 wieder auf die ursprüngliche Geschwindigkeit beschleunigt, ohne dass zusätzliche Energie benötigt wird.In the area of the movement reversal points of the thread guide 6 there are energy stores Influencing the deceleration and acceleration of the thread guide 6 during its reversal of movement intended. The energy store in question changes from the beginning of Delay the kinetic energy of the thread guide 6 in potential energy, whereby the thread guide is delayed. After the delay ends, as soon as the Turnaround point is reached, the stored energy is returned to the moving system issued, whereby the thread guide 6 is accelerated again. Theoretically (if neglected the friction), the thread guide 6 is back to the original speed accelerates without the need for additional energy.

Die Energiespeicher sind durch auf einem Träger 14 gelagerte, elastische oder federnde Speicherelemente 15 in der Art von Luftpuffern, Magnetpuffern, federnd gelagerten Pufferplättchen oder anderen geeigneten Speichermedien gebildet. Der Fadenführer 6 weist im Niveau der Speicherelemente 15 einen rippenartigen Vorsprung 16 auf, der zum Zeitpunkt des Beginns der Verzögerung auf das Speicherelement 15 trifft und dieses spannt. In der Beschleunigungsphase nach dem Umkehrpunkt entspannt sich das Speicherelement 15 und beschleunigt den Fadenführer 6.The energy stores are elastic or resilient mounted on a carrier 14 Storage elements 15 in the manner of air buffers, magnetic buffers, spring-loaded buffer plates or other suitable storage media. The thread guide 6 points in the level of the memory elements 15 a rib-like projection 16, which at the time the beginning of the delay hits the memory element 15 and tensions it. The storage element relaxes in the acceleration phase after the reversal point 15 and accelerates the thread guide 6.

Da die Kennlinie des Motors 7 bekannt ist, kann der Antrieb des Fadenführers 6 so eingestellt werden, dass das jeweilige Speicherelement 15 Zeitpunkt des Beginns der Verzögerung am Umkehrort positioniert ist. Da genau zu diesem Zeitpunkt der Motor 7 zu bremsen beginnt, sind zwei Bremsmomente wirksam, dasjenige vom Energiespeicher und dasjenige vom Motor 7. Das gilt umgekehrt auch für die Beschleunigungsstrecke.Since the characteristic curve of the motor 7 is known, the drive of the thread guide 6 can be set in this way be that the respective storage element 15 time of the start of the delay is positioned at the reversal point. Because at this time the engine 7 too starts braking, two braking torques are effective, that of the energy storage and that of the engine 7. The reverse also applies to the acceleration section.

Die Länge der Strecke, über welche der Energiespeicher geladen wird, hängt vom Umkehrhub ab, der seinerseits die Spulenqualität bestimmt. Dabei gilt, dass der Faden an jedem Punkt der Spule gleich lange und auch an den Spulenenden nicht länger stehen bleiben sollte, da sonst Randzonen entstehen, die zu dicht werden. In der Praxis beträgt die Länge der Strecke der Ladung des Energiespeichers etwa 1 mm.The length of the distance over which the energy storage device is charged depends on the reversing stroke which in turn determines the quality of the spool. The thread is on every point of the coil for the same length of time and no longer at the coil ends should remain, otherwise there will be marginal zones that become too dense. In practice is the length of the distance of the charge of the energy storage about 1 mm.

Wie Figur 2 zu entnehmen ist, weist der Träger 14 der Speicherelemente 15 etwa die Form eines Y auf. Das sollte aber nicht einschränkend verstanden werden. Vielmehr ist die Form des Trägers 14 in weiten Grenzen wählbar und kann beispielsweise auch rund oder gabelförmig sein. Der Träger 14, der auf der Welle 8 des Motors 7 frei drehbar gelagert ist, trägt an den Enden seiner beiden nach oben ragenden Schenkel die Speicherelemente 15 und ist an seinem nach unten ragenden Schenkel über ein Verbindungselement 17 mit einem Antrieb 18 verbunden. Beim Betrieb des Antriebs 18 vollführt das Verbindungselement 18 eine hin- und hergehende Bewegung in Richtung des eingezeichneten Doppelpfeils P, wodurch der Träger 14 um die Welle 8 oszillierend angetrieben wird. Die Grösse des Hubs dieser oszillierenden Bewegung des Trägers 14 kann am Antrieb 17 oder am Verbindungselement 18 mit geeigneten Mitteln, beispielsweise mit einem Schrittmotor oder mit einem beliebigen linearen oder runden Antrieb, eingestellt werden. Wenn diese Einstellmittel elektrisch oder magnetisch und reproduzierbar sind, kann dem Wickelprozess ein beliebiges Hubprofil vorgegeben werden.As can be seen in FIG. 2, the carrier 14 of the storage elements 15 has approximately that Shape of a Y on. However, this should not be understood as restrictive. Rather is the shape of the carrier 14 can be selected within wide limits and can, for example, also be round or be fork-shaped. The carrier 14, which is freely rotatable on the shaft 8 of the motor 7 is, carries the storage elements at the ends of its two upstanding legs 15 and is on its downwardly projecting leg via a connecting element 17 connected to a drive 18. When the drive 18 is operating, this is done Connecting element 18 a reciprocating movement in the direction of the drawn Double arrow P, whereby the carrier 14 driven oscillating about the shaft 8 becomes. The size of the stroke of this oscillating movement of the carrier 14 can Drive 17 or on the connecting element 18 with suitable means, for example with a stepper motor or with any linear or round drive become. If these adjustment means are electrical or magnetic and reproducible, Any lifting profile can be specified for the winding process.

Der Hub der Schwenkbewegung des Trägers 14 definiert den Hub des Fadenführers 6, wobei der Träger 14 eine wesentlich kürzere Hubbewegung ausführt und daher auch wesentlich langsamer angetrieben ist als der Fadenführer 6. Man könnte sich vorstellen, dass der Abstand zwischen den Speicherelementen 15 gerade so gross gewählt ist, dass der Vorsprung 16 des Fadenführers 6 exakt im Zeitpunkt des Beginns der Verzögerung auf die Speicherelemente 15 trifft. In diesem Fall könnte der Träger 14 in Ruhestellung verharren. The stroke of the pivoting movement of the carrier 14 defines the stroke of the thread guide 6, the carrier 14 executing a much shorter stroke movement and therefore also is driven much more slowly than the thread guide 6. You could imagine that the distance between the storage elements 15 is chosen to be so large that the projection 16 of the thread guide 6 exactly at the time of the start of the deceleration meets the storage elements 15. In this case, the carrier 14 could be at rest remain.

Wenn nun der Hub des Fadenführers 6 länger werden soll, dann müsste der Träger 14 mit dem genannten Abstand zwischen den Speicherelementen 15 jeweils etwas nach aussen geschwenkt, und wenn der Hub des Fadenführers 6 kürzer werden soll, dann müsste dieser Träger 14 jeweils etwas nach innen geschwenkt werden. Der Hub des Trägers 14 beträgt also immer die im Vergleich zum Hub des Fadenführers 6 sehr kurze Strecke von der in Fig. 2 eingezeichneten Ruhestellung bis in die Endlage beim Anschlag der Rippe 16.If the stroke of the thread guide 6 is now to be longer, then the carrier 14 would have to with the mentioned distance between the storage elements 15 each slightly pivoted outside, and if the stroke of the thread guide 6 should be shorter, then this carrier 14 would each have to be pivoted somewhat inwards. The stroke of the carrier 14 is therefore always very short compared to the stroke of the thread guide 6 Distance from the rest position shown in Fig. 2 to the end position at the stop the rib 16.

Zur Überwachung und Steuerung der Bewegung des Trägers 14 ist ein zweiter Sensor 19 vorgesehen, der so wie der erste Sensor 12 mit der Steuerung 13 verbunden ist. Der zweite Sensor 19 ist ein zur Abtastung der Rotationsbewegung des Trägers 14 geeigneter Positionssensor, beispielsweise ein fotoelektrischer Sensor. Der Träger 14 ist zu diesem Zweck mit geeigneten optisch abtastbaren Markierungen, beispielsweise mit Löchern oder Schlitzen, versehen.A second sensor 19 is used to monitor and control the movement of the carrier 14 provided, which is connected to the controller 13 like the first sensor 12. The second sensor 19 is suitable for sensing the rotational movement of the carrier 14 Position sensor, for example a photoelectric sensor. The carrier 14 is to this Purpose with suitable optically scannable markings, for example with holes or slots.

Das Sensorsignal wird der Steuerung 13 zugeführt, die überprüft, ob sich der Träger 14 zu einem bestimmten Zeitpunkt an seiner Ist-Position befindet. Bei einer Abweichung zwischen Ist- und Sollwert gibt die Steuerstufe 13 an den Antriebsmotor 18 ein entsprechendes Signal ab, so dass der Antrieb des Trägers 14 verzögert oder beschleunigt wird. Da die Signale sowohl des ersten als auch des zweiten Sensors 12 beziehungsweise 19 der Steuerstufe 13 zugeführt sind, erfolgt in dieser zusätzlich noch ein Quervergleich zwischen den beiden Sensorsignalen. Dadurch können eventuelle Abweichungen im Synchronismus zwischen den Schwenkbewegungen des Fadenführers 6 einerseits und des Trägers 14 der Speicherelemente 15 andererseits festgestellt und die beiden Motoren 7 und 18 können entsprechend nachgeregelt werden.The sensor signal is fed to the controller 13, which checks whether the carrier 14 is at its current position at a certain point in time. In the event of a deviation between the actual value and the target value, the control stage 13 outputs a corresponding one to the drive motor 18 Signal off, so that the drive of the carrier 14 is delayed or accelerated. Since the signals from both the first and second sensors 12 and 19 are supplied to the control stage 13, a cross comparison is also carried out in this between the two sensor signals. This can cause any deviations in the Synchronism between the pivoting movements of the thread guide 6 on the one hand and the carrier 14 of the storage elements 15 on the other hand, and the two motors 7 and 18 can be adjusted accordingly.

Die beschriebene Fadenverlegung 4 hat den Vorteil, dass eine hohe Wickelgeschwindigkeit und eine hohe Beschleunigung des Fadenführers 6 in den Umkehrpunkten erreicht wird. Durch die in der Verzögerungs- und in der Beschleunigungsphase im Bereich der Umkehrpunkte wirkenden Energiespeicher 15 kann bei der Verzögerung relativ viel Energie zurückgewonnen und anschliessend für die Beschleunigung eingesetzt werden, woraus ein geringer Energieverbrauch resultiert. The thread laying 4 described has the advantage that a high winding speed and achieved a high acceleration of the thread guide 6 in the reversal points becomes. By in the deceleration and in the acceleration phase in the area of Energy storage 15 acting reversal points can be relatively much in the delay Energy is recovered and then used for acceleration, which results in low energy consumption.

Die Einstellbarkeit der Energiespeicher 15 ermöglicht eine einfache Änderung des Hubs des Fadenführers 6 und die Anordnung der Energiespeicher 15 auf dem oszillierend antreibbaren Träger 14 ermöglicht eine Änderung des Hubs des Fadenführers 6 durch eine blosse Änderung des Hubs des Trägers 14 und ohne mechanische Verstellung der Position der Energiespeicher 15. Mit der Einstellbarkeit des Hubs der oszillierenden Bewegung des Trägers 14 mit elektrischen oder magnetischen und reproduzierbaren Mitteln eröffnet sich die Möglichkeit, Spulen mit beliebig aufgebauter Wicklung herzustellen.The adjustability of the energy store 15 enables the stroke to be changed easily of the thread guide 6 and the arrangement of the energy storage 15 on the oscillating Carrier 14 allows a change in the stroke of the thread guide 6 by a merely changing the stroke of the carrier 14 and without mechanical adjustment of the position the energy store 15. With the adjustability of the stroke of the oscillating movement of the carrier 14 with electrical or magnetic and reproducible means This opens up the possibility of producing coils with any winding structure.

Claims (12)

  1. Device for winding a yarn (F) onto a bobbin (3), having a yarn guide (6) which is drivable in an oscillating manner and having energy storage mechanisms (15) for influencing the deceleration and acceleration of the yarn guide (6) during reversal of its motion, characterized in that the yarn guide (6) is of a finger-like design and is supported on a shaft (8) oriented perpendicularly to the bobbin axis (S), the energy storage mechanisms (15) are so designed that the influencing of the deceleration and acceleration of the yarn guide (6) is effected only in a short region of its motion about the reversing point, and the position of the energy storage mechanisms (15) is adjustable.
  2. Device according to Claim 1, characterized in that, from the start of deceleration of the yarn guide (6) up to the reversing point, the kinetic energy of the yarn guide (6) is converted into potential energy, and after attainment of the reversing point, this potential energy is returned to the yarn guide (6).
  3. Device according to Claim 2, characterized in that the energy storage mechanisms (15) are fastened on a carrier (14) which is drivable so as to oscillate about the said shaft (8).
  4. Device according to Claim 3, characterized in that adjustment of the position of the energy storage mechanisms (15) is effected by altering the amplitude of the motion of the carrier (14).
  5. Device according to Claim 4, characterized in that the energy storage mechanisms (15) are formed by spring or elastic storage elements and are disposed at a mutual distance on the carrier (14), and the stroke of the carrier (14) corresponds to the difference between the stroke of the yarn guide (6) and the position of the energy storage mechanisms (15) in the position of rest of the carrier (14), the carrier (14), in the case of a positive value of this difference, being driven in the same direction as the yarn guide (6) and, in the case of a negative value, being driven in the opposite direction to the yarn guide (6).
  6. Device according to one of Claims 1 to 5, characterized in that the yarn guide (6) at its free end has an elongated slot (9), which is oriented perpendicularly to the bobbin axis (S) and in which the yarn (F) is guided.
  7. Device according to Claim 6, characterized in that disposed in the running direction of the yarn (F), and upstream of the yarn guide (6), is a guide rail (10) for the yarn (F), and the geometry of the slot (9) and the arrangement of the guide rail (10) are coordinated with one another in such a way that the trailing length of the yarn (F) is constant.
  8. Device according to one of Claims 1 to 5, characterized by a first sensor (12), assigned to the yarn guide (6), for monitoring the stroke motion of the latter, and by a controller (13), connected to the first sensor (12), for correcting deviations between the actual and a predefined speed profile of the yarn guide (6).
  9. Device according to Claim 8, characterized in that a linearization of the sinusoidal transfer speed of the yarn (F) is effected in the controller (13).
  10. Device according to Claim 8, characterized by a second sensor (19), assigned to the carrier (14) of the energy storage mechanisms (15), for monitoring the oscillating motion of the said carrier, which second sensor (19) is connected to the controller (13) in which a correction of deviations between the actual and a predefined speed profile of the carrier is effected.
  11. Device according to Claim 10, characterized in that the controller (13) is additionally designed so as to monitor and correct the synchronism between the motion of the yarn guide (6) and the motion of the carrier (14).
  12. Device according to Claims 8 and 10, characterized in that the first and second sensors (12 and 19 respectively) take the form of position sensors which scan markings which are provided on the yarn guide (6) and the carrier (14) or on elements attached thereto.
EP96117256A 1996-10-28 1996-10-28 Apparatus for winding a yarn on a bobbin Expired - Lifetime EP0838422B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP96117256A EP0838422B1 (en) 1996-10-28 1996-10-28 Apparatus for winding a yarn on a bobbin
DE59609889T DE59609889D1 (en) 1996-10-28 1996-10-28 Device for winding a thread on a spool
TW086115851A TW455563B (en) 1996-10-28 1997-10-27 Device for winding a yarn onto a bobbin
KR1019970055153A KR19980033186A (en) 1996-10-28 1997-10-27 Bobbin thread
US08/957,946 US5908170A (en) 1996-10-28 1997-10-27 Device for winding a yarn onto a bobbin
JP29580497A JP3997364B2 (en) 1996-10-28 1997-10-28 Yarn winding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96117256A EP0838422B1 (en) 1996-10-28 1996-10-28 Apparatus for winding a yarn on a bobbin

Publications (2)

Publication Number Publication Date
EP0838422A1 EP0838422A1 (en) 1998-04-29
EP0838422B1 true EP0838422B1 (en) 2002-11-20

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Application Number Title Priority Date Filing Date
EP96117256A Expired - Lifetime EP0838422B1 (en) 1996-10-28 1996-10-28 Apparatus for winding a yarn on a bobbin

Country Status (6)

Country Link
US (1) US5908170A (en)
EP (1) EP0838422B1 (en)
JP (1) JP3997364B2 (en)
KR (1) KR19980033186A (en)
DE (1) DE59609889D1 (en)
TW (1) TW455563B (en)

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CN104328545B (en) * 2014-11-09 2016-08-24 经纬纺织机械股份有限公司 Rotor spinning machine yarn guide device
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EP1728748A1 (en) 2005-06-04 2006-12-06 Saurer GmbH & Co. KG Yarn traversing device for a winding device of a textile machine producing cross-wound bobbins
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US5908170A (en) 1999-06-01
EP0838422A1 (en) 1998-04-29
JP3997364B2 (en) 2007-10-24
KR19980033186A (en) 1998-07-25
DE59609889D1 (en) 2003-01-02
JPH10129931A (en) 1998-05-19
TW455563B (en) 2001-09-21

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