EP3133192B1 - Spinning machine with a plurality of stretching units next to one another - Google Patents

Spinning machine with a plurality of stretching units next to one another Download PDF

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Publication number
EP3133192B1
EP3133192B1 EP16001665.5A EP16001665A EP3133192B1 EP 3133192 B1 EP3133192 B1 EP 3133192B1 EP 16001665 A EP16001665 A EP 16001665A EP 3133192 B1 EP3133192 B1 EP 3133192B1
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EP
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Prior art keywords
rollers
series
drive
input
roller
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EP16001665.5A
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German (de)
French (fr)
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EP3133192A1 (en
Inventor
Gerhard Stähle
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Germany GmbH and Co KG
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Publication of EP3133192A1 publication Critical patent/EP3133192A1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/82—Arrangements for coupling roller sections

Definitions

  • the present invention relates to a spinning machine, in particular ring spinning machine, with a plurality of juxtaposed drafting devices for drawing a sliver, the drafting units each having an input sub-roller, a middle sub-roller and an output sub-roller.
  • the center sub-roller is arranged in the direction of the sliver between the input sub-roller and the output sub-roller.
  • the juxtaposed input sub-rollers form an input roller train
  • the middle sub-rollers arranged next to each other form a central roller train
  • the output sub-rollers arranged side by side form an output roller train.
  • the input roller train comprises a shaft on which input sub-rollers are arranged
  • the middle roller train comprises a shaft on which middle sub-rollers are arranged
  • the output roller train comprises a shaft on which output sub-rollers are arranged.
  • the shafts can be rotated by a drive and transmit torque to the input sub-rollers, center sub-rollers, and output sub-rollers.
  • the drive has a first and a second drive point at which the input roller train and the center roller train are driven.
  • Draw frames are used to give a sliver a delay.
  • Drawframes are used in various spinning machines, for example in ring spinning machines, air-jet spinning machines and roving machines.
  • a drafting system comprises at least one input roller pair, middle roller pair and an output roller pair. The sliver passes first through the pair of input rollers, then the middle roller pair and finally the pair of output rollers. The delay results from the ratio of the peripheral speeds between the different roller pairs. Between input and middle roller pair a pre-delay is realized. The main distortion results from the ratio of the peripheral speeds between the middle and output roller pair.
  • the input roller pair includes an input sub-roller and an input upper roller.
  • the middle roll pair comprises a middle lower roll and a middle upper roll.
  • the output roller pair includes an output sub-roller and an output top roller.
  • the input sub-rollers, the center sub-rollers and the output sub-rollers are each arranged on shafts and are driven by these.
  • the juxtaposed input sub-rollers form an input roller train.
  • the juxtaposed center rolls form a center roll strand.
  • the juxtaposed output rollers form a Chatwalzenstrang.
  • the top rollers are held by appropriate means, for example by a support and loading arm, and pressed against the lower rollers and taken away by this.
  • the DE 101 37 140 C1 shows a generic spinning machine.
  • the illustrated spinning machine is a ring spinning machine with drafting on both sides.
  • the DE 101 37 140 C1 concerns the drive of the lower rollers.
  • the ring spinning machine has a symmetrical construction on both sides. That is, on each side of the ring spinning machine there is an input roll train, a center roll train, and an output roll train.
  • the drive takes place at the ends of the ring spinning machine.
  • the drives of the two sides are coupled with each other via gears in order to realize the same distortions on both sides.
  • the drive of the input roller strands and the center roller strands can be done at both ends of the ring spinning machine to reduce the torsion of the waves.
  • the input roller train between the first and second drive point on a continuous shaft and the center roll strand has between the first and second drive point at least three divided shaft sections, wherein a shaft portion which is not connected to the first and second drive point, with a another drive point is connected.
  • the invention takes advantage of the fact that the largest torque is transmitted to the center roll train. Due to the division of the center roll strand into at least three shaft sections, the torque to be transmitted at the first and second drive points is significantly reduced. The lower the torque, the lower the torsion.
  • the input roller train transmits a significantly lower torque, so that even with longer spinning machines a continuous shaft can be used without exceeding the allowable torsion.
  • the first and second drive point may each be assigned a common motor for the input roller train and the center roller train.
  • the motors can be connected to the input roller train and the center roll train via gearbox.
  • the motor of the first drive point is operated speed-controlled on a frequency converter and the motor of the second drive point is operated on the same frequency converter.
  • a mechanical coupling of the motors is required to ensure the synchronization of the motors.
  • the mechanical coupling via the continuous shaft of the input roller train is realized in a simple manner.
  • the further drive point is associated with a further motor.
  • the engine has a lower power than the main drive motors. This allows the motor to engage the shaft section without having to change the pitch of the jobs.
  • the motor requires its own frequency converter.
  • the control of the engine is easy to implement, since the other motor is decoupled via the division of the center roll train of the motors of the first and second drive point.
  • the shaft portion of the center roll strand which is not connected to the first and second drive point, connected via a transmission to the other motor.
  • the shaft portion of the center roll strand which is not connected to the first and second drive point, connected via a gear to the input roller train.
  • This embodiment has the advantage that no additional drive is required for the separate shaft portion of the center roll strand. Due to the rather low drive torque of the input roller train this can easily provide the additional moment.
  • the central roll strand between the first and second drive point has exactly three divided shaft sections.
  • the shaft portion of the center roll strand which is not connected to the first and second drive points is a quarter and the shaft sections connected to the first or second drive point are advantageously associated with three quarters of the drafting devices between the first and second drive points. In this way, the center roll strand can be noticeably relieved and the torsion can be reduced.
  • the more Motor are dimensioned small or the input roller train is only slightly loaded.
  • the Fig. 1 shows schematically the structure of a ring spinning machine according to the invention.
  • the presentation is limited to the parts relevant for explanation. Accordingly, in particular, the presentation of the sliver feed of the spindles and the ring rail was omitted.
  • the presentation is limited to the arrangement of the drafting and their output. It should be noted that the representation is not to scale.
  • ring spinning machine is a double-sided ring spinning machine with drafting on both sides.
  • the ring spinning machine has on each side a plurality of juxtaposed drafting 2, of which in Fig. 1 only two are shown.
  • Each drafting 2 is associated with a spindle, not shown.
  • the drafting system 2 and the spindle together form a job.
  • the drafting system 2 comprises an input roller pair, a middle roller pair and an output roller pair, of which only the input lower roller 3, the lower middle roller 4 and the output lower roller 5 are shown. Furthermore, in the illustration of the Fig. 1 a Verzugsriemchen 6 indicated that wraps around the middle lower roller 4.
  • the juxtaposed input sub-rollers 3 form an input roller train 7.
  • the juxtaposed middle sub-rollers 4 form a center roller train 8.
  • the juxtaposed output sub-rollers 5 form a ceremoniwalzenstrang 9.
  • the input roller strands 7 and 7 'each comprise a continuous shaft 22 and 22'.
  • the output roller strands 9 and 9 'each comprise a continuous shaft 26 and 26'.
  • the shafts 22, 22 ', 26 and 26' each consist of two sections which are connected to each other via a threaded connection 27, 28, 27 'and 28'.
  • the one section in turn consists of shaft sections, which are connected to each other with a right-hand thread and the other section consists of shaft sections, which are each connected to one another with a left-hand thread.
  • the threaded connections create a rigid connection of the sections so that the sections together form a continuous shaft.
  • the center roll strands 8 and 8 'each comprise three separate shaft sections 23, 24, 25 and 23', 24 ', 25'.
  • the drive of the roll cords takes place at two drive points 41 and 42 at the ends of the ring spinning machine.
  • the output roller strands 9 and 9 ' are driven at each driving location 41, 42 by a common motor 10 and 12.
  • the motors 10 and 12 are connected via the gears 13 and 14 to the shafts 26 and 26 ', respectively.
  • the motors 10 and 12 are both connected to a frequency converter, not shown.
  • the engine 10 serves as a leading engine. It is speed-controlled and is therefore equipped with a resolver 11.
  • the engine 12 is a guided engine that does not have its own speed control. The synchronization is realized via the mechanical coupling by the shafts 26 and 26 '.
  • the input roller train 7 and the center roller train 8 are driven together at the drive points 41, 42 at the ends of the machine.
  • the motors 15 and 17 are arranged at the ends of the machine.
  • the same motors 15 and 17 also drive the input roller train 7 'and the center roller train 8' of the other side of the ring spinning machine 1 at.
  • the motor 15 is connected via gears 18 to the shafts 22 and 22 'of the input roller strands 7 and 7'.
  • the motor 17 is also connected via gear 20 to the shafts 22 and 22 'of the input roller strands 7 and 7'.
  • the two motors 15 and 17 are mechanically coupled via the shafts 22 and 22 '.
  • the motors 15 and 17 are also on a common not shown frequency controlled.
  • the motor 15 has a resolver 16 and serves as a leading motor.
  • the engine 17 is a guided engine.
  • the shaft portion 23 of the center roll train 8 is via the transmission 19 with the gear 18 and the motor. 15 connected.
  • the shaft portion 25 of the center roll strand 8 is connected via the gear 21 to the gear 20 and the motor 17, respectively.
  • the gears 19 and 21 are formed as Vorverzugs grillzier.
  • the change gears of the transmission 19, 21 can be replaced to adjust the Vorverzug.
  • the shaft portion 24 of the center roll strand 8 is not mechanically coupled to the shaft portions 23 and 25.
  • the drive of the shaft portion 24 is effected by a further drive point 43.
  • In the in Fig. 1 shown embodiment drives an additional motor 29 via the gear 30, the shaft portion 24 at.
  • the motor has its own frequency converter, so that the speed can be easily adapted to a changed pre-delay.
  • the middle roll strand 8 'of the other side of the ring spinning machine 1 is constructed analogously.
  • the roll cuts 23 'and 25' are driven via the default change wheels 19 'and 21'.
  • the shaft sections 23 and 25 are each assigned 3/8 of the drafting systems. That is, the shaft portions 23 and 25 drive together 3/4 of the drafting systems.
  • the shaft portion 24 are assigned according to 1/4 of the drafting. Accordingly, the drive torque that must be applied to the centerline roll 8 at the drive points at the machine ends, reduced by 1/4. In this way, the torsion is reduced.
  • the embodiment of the Fig. 2 is largely consistent with the embodiment of Fig. 1 match. Like reference numerals have been used for like elements so that they will not be explained again. It only goes into the differences.
  • the shaft sections 24 and 24 'of the center roll strands 8 and 8' are connected to the further drive point 43 via gear 31 and 31 'with the shafts 22 and 22'. Thus, no separate motor is required for the shaft sections 24 and 24 '.
  • the transmissions 31 and 31 ' only have to be adaptable to a changed pre-delay ratio in accordance with the transmissions 19, 19', 21 and 21 '.
  • the torque acting on the shafts 22 and 22 'of the input roller strands 7 and 7' increases to 75 Nm for each drive point 41, 42. This leaves the moment but clearly below the moment of 120 Nm, which must be applied to the machine ends on the center roll strand 8, 8 '. In this way, a better distribution of the required drive torques can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die vorliegende Erfindung betrifft eine Spinnmaschine, insbesondere Ringspinnmaschine, mit einer Vielzahl nebeneinander angeordneter Streckwerke zur Verstreckung eines Faserbandes, wobei die Streckwerke jeweils eine Eingangsunterwalze, eine Mittelunterwalze und eine Ausgangsunterwalze aufweisen. Die Mittelunterwalze ist in Laufrichtung des Faserbandes zwischen der Eingangsunterwalze und der Ausgangsunterwalze angeordnet. Die nebeneinander angeordneten Eingangsunterwalzen bilden einen Eingangswalzenstrang, die nebeneinander angeordneten Mittelunterwalzen bilden einen Mittelwalzenstrang und die nebeneinander angeordneten Ausgangsunterwalzen bilden einen Ausgangswalzenstrang. Der Eingangswalzenstrang umfasst eine Welle, auf der Eingangsunterwalzen angeordnet sind, der Nlittelwalzenstrang umfasst eine Welle, auf der Mittelunterwalzen angeordnet sind und der Ausgangswalzenstrang umfasst eine Welle, auf der Ausgangsunterwalzen angeordnet sind. Die Wellen können durch einen Antrieb in Rotation versetzt werden und ein Drehmoment auf die Eingangsunterwalzen, die Mittelunterwalzen und die Ausgangsunterwalzen übertragen. Der Antrieb weist eine erste und eine zweite Antriebsstelle auf, an denen der Eingangswalzenstrang und der Mittelwalzenstrang angetrieben werden.The present invention relates to a spinning machine, in particular ring spinning machine, with a plurality of juxtaposed drafting devices for drawing a sliver, the drafting units each having an input sub-roller, a middle sub-roller and an output sub-roller. The center sub-roller is arranged in the direction of the sliver between the input sub-roller and the output sub-roller. The juxtaposed input sub-rollers form an input roller train, the middle sub-rollers arranged next to each other form a central roller train, and the output sub-rollers arranged side by side form an output roller train. The input roller train comprises a shaft on which input sub-rollers are arranged, the middle roller train comprises a shaft on which middle sub-rollers are arranged and the output roller train comprises a shaft on which output sub-rollers are arranged. The shafts can be rotated by a drive and transmit torque to the input sub-rollers, center sub-rollers, and output sub-rollers. The drive has a first and a second drive point at which the input roller train and the center roller train are driven.

Streckwerke dienen dazu, einem Faserband einen Verzug zu erteilen. Streckwerke kommen in verschiedenen Spinnmaschinen zum Einsatz, zum Beispiel bei Ringspinnmaschinen, Luftspinnmaschinen und Vorspinnmaschinen. Ein Streckwerk umfasst mindestens ein Eingangswalzenpaar, Mittelwalzenpaar und ein Ausgangswalzenpaar. Das Faserband durchläuft zunächst das Eingangswalzenpaar, dann das Mittelwalzenpaar und zuletzt das Ausgangswalzenpaar. Der Verzug ergibt sich aus dem Verhältnis der Umfangsgeschwindigkeiten zwischen den verschiedenen Walzenpaaren. Zwischen Eingangs- und Mittelwalzenpaar wird ein Vorverzug realisiert. Der Hauptverzug ergibt sich aus dem Verhältnis der Umfangsgeschwindigkeiten zwischen Mittel- und Ausgangswalzenpaar.Draw frames are used to give a sliver a delay. Drawframes are used in various spinning machines, for example in ring spinning machines, air-jet spinning machines and roving machines. A drafting system comprises at least one input roller pair, middle roller pair and an output roller pair. The sliver passes first through the pair of input rollers, then the middle roller pair and finally the pair of output rollers. The delay results from the ratio of the peripheral speeds between the different roller pairs. Between input and middle roller pair a pre-delay is realized. The main distortion results from the ratio of the peripheral speeds between the middle and output roller pair.

Das Eingangswalzenpaar umfasst eine Eingangsunterwalze und eine Eingangsoberwalze. Das Mittelwalzenpaar umfasst eine Mittelunterwalze und eine Mitteloberwalze. Das Ausgangswalzenpaar umfasst eine Ausgangsunterwalze und eine Ausgangsoberwalze. Die Eingangsunterwalzen, die Mittelunterwalzen und die Ausgangsunterwalzen sind jeweils auf Wellen angeordnet und werden über diese angetrieben. Die nebeneinander angeordneten Eingangsunterwalzen bilden einen Eingangswalzenstrang. Die nebeneinander angeordneten Mittelwalzen bilden einen Mittelwalzenstrang. Die nebeneinander angeordneten Ausgangswalzen bilden einen Ausgangswalzenstrang. Die Oberwalzen werden durch entsprechende Einrichtungen, zum Beispiel durch einen Trag- und Belastungsarm, gehalten und gegen die Unterwalzen gedrückt und von diesem mitgenommen.The input roller pair includes an input sub-roller and an input upper roller. The middle roll pair comprises a middle lower roll and a middle upper roll. The output roller pair includes an output sub-roller and an output top roller. The input sub-rollers, the center sub-rollers and the output sub-rollers are each arranged on shafts and are driven by these. The juxtaposed input sub-rollers form an input roller train. The juxtaposed center rolls form a center roll strand. The juxtaposed output rollers form a Ausgangswalzenstrang. The top rollers are held by appropriate means, for example by a support and loading arm, and pressed against the lower rollers and taken away by this.

Die DE 101 37 140 C1 zeigt eine gattungsgemäße Spinnmaschine. Bei der dargestellten Spinnmaschine handelt es sich um eine Ringspinnmaschine mit Streckwerken auf beiden Seiten. Die DE 101 37 140 C1 betrifft den Antrieb der Unterwalzen. Die Ringspinnmaschine weist auf beiden Seiten einen symmetrischen Aufbau auf. Das heißt, auf jeder Seite der Ringspinnmaschine ist ein Eingangswalzenstrang, ein Mittelwalzenstrang und ein Ausgangswalzenstrang vorhanden. Der Antrieb erfolgt an den Enden der Ringspinnmaschine. Die Antriebe der beiden Seiten sind über Getriebe miteinander gekoppelt, um auf beiden Seiten die gleichen Verzüge zu realisieren. Der Antrieb der Eingangswalzenstränge und der Mittelwalzenstränge kann an beiden Enden der Ringspinnmaschine erfolgen, um die Torsion der Wellen zu reduzieren. Es ist auch offenbart, nur den Mittelwalzenstrang an beiden Enden der Maschine anzutreiben und den Eingangswalzenstrang nur an einem Ende. Auf dem Antriebsstrang der Mittelwalzen werden die größten Drehmomente übertragen, da von Mittelwalzen Verzugsriemchen geführt werden. Infolge des gleitenden Führens der Verzugsriemchen über deren Umleitorgane, wie Wendeschienen und Spannbügel, ist die Torsion an den Mittelwalzen in der Regel höher als an den anderen Streckwalzen. Nur bei kurzen Ringspinnmaschinen verzichtet man auf die zweite Antriebsstelle am anderen Ende der Ringspinnmaschine. Die DE 101 37 140 C1 beschreibt außerdem die Möglichkeit, den Mittelwalzenstrang in zwei etwa gleiche Wellenabschnitte zu unterteilen und die beiden Wellenabschnitte jeweils von den Enden der Ringspinnmaschine anzutreiben.The DE 101 37 140 C1 shows a generic spinning machine. In the illustrated spinning machine is a ring spinning machine with drafting on both sides. The DE 101 37 140 C1 concerns the drive of the lower rollers. The ring spinning machine has a symmetrical construction on both sides. That is, on each side of the ring spinning machine there is an input roll train, a center roll train, and an output roll train. The drive takes place at the ends of the ring spinning machine. The drives of the two sides are coupled with each other via gears in order to realize the same distortions on both sides. The drive of the input roller strands and the center roller strands can be done at both ends of the ring spinning machine to reduce the torsion of the waves. It is also disclosed to drive only the center roll strand at both ends of the machine and the input roll strand only at one end. On the drive train of the center rollers, the largest torques are transmitted, as are guided by intermediate rolls Verzugsriemchen. As a result of the sliding guiding the delay straps on their Umleitorgane, such as turn rails and clamp, the torsion at the center rolls is usually higher than at the other drafting rollers. Only with short ring spinning machines is dispensed with the second drive point at the other end of the ring spinning machine. The DE 101 37 140 C1 also describes the possibility of dividing the center roll strand into two approximately equal shaft sections and driving the two shaft sections respectively from the ends of the ring spinning machine.

Bei langen Maschinen ist der Antrieb der Walzenstränge an zwei Antriebsstellen an den Enden der Maschine jedoch nicht ausreichend, um die Torsion auf ein zulässiges Maß zu reduzieren. Aus der WO 2007/057148 A2 ist es deshalb bekannt, über die Länge der Walzenstränge verteilt, zusätzlich zu den Hauptantrieben, an den Enden Hilfsantriebe kleinerer Leistung anzuordnen, ohne die Teilung der Arbeitsstellen zu verändern. Aufgrund der unterschiedlichen Leistungen von Haupt- und Hilfsantrieben ist die Regelung der Antriebe jedoch aufwendig. Siehe auch EP 1 746 188 A2 . Ferner ist es bekannt, alle Walzenstränge in der Mitte der Maschine zu unterbrechen und eine zusätzliche Antriebseinheit entsprechend der Antriebseinheit an den Enden anzuordnen. Die dadurch veränderte Teilung der Arbeitsstellen ist jedoch nachteilig.For long machines, however, driving the rollers at two drive points at the ends of the machine is not sufficient to reduce the torsion to an acceptable level. From the WO 2007/057148 A2 It is therefore known, distributed over the length of the roller strands, in addition to the main drives, to arrange at the ends auxiliary drives of smaller power, without changing the pitch of the jobs. Due to the different performance of main and auxiliary drives, however, the control of the drives is expensive. See also EP 1 746 188 A2 , Furthermore, it is known to interrupt all roller strands in the middle of the machine and to arrange an additional drive unit corresponding to the drive unit at the ends. The resulting change in the division of jobs is disadvantageous.

Es ist daher die Aufgabe der vorliegenden Erfindung, den Antrieb der Walzenstränge unter dem Gesichtspunkt einer verminderten Torsion zu verbessern.It is therefore the object of the present invention to improve the drive of the roller strands from the viewpoint of a reduced torsion.

Zur Lösung der Aufgabe weist der Eingangswalzenstrang zwischen der ersten und zweiten Antriebsstelle eine durchgehende Welle auf und der Mittelwalzenstrang weist zwischen der ersten und zweiten Antriebsstelle mindestens drei geteilte Wellenabschnitte auf, wobei ein Wellenabschnitt, der nicht mit der ersten und zweiten Antriebsstelle verbunden ist, mit einer weiteren Antriebsstelle verbunden ist.To solve the problem, the input roller train between the first and second drive point on a continuous shaft and the center roll strand has between the first and second drive point at least three divided shaft sections, wherein a shaft portion which is not connected to the first and second drive point, with a another drive point is connected.

Die Erfindung macht sich die Tatsache zu Nutze, dass auf dem Mittelwalzenstrang das größte Drehmoment übertragen wird. Durch die Teilung des Mittelwalzenstranges in mindestens drei Wellenabschnitte wird das an der ersten und zweiten Antriebsstelle zu übertragene Moment deutlich reduziert. Je geringer das Drehmoment desto geringer ist auch die Torsion. Der Eingangswalzenstrang hingegen überträgt ein deutlich geringeres Drehmoment, so dass auch bei längeren Spinnmaschinen eine durchgehende Welle verwendet werden kann, ohne die zulässige Torsion zu überschreiten.The invention takes advantage of the fact that the largest torque is transmitted to the center roll train. Due to the division of the center roll strand into at least three shaft sections, the torque to be transmitted at the first and second drive points is significantly reduced. The lower the torque, the lower the torsion. The input roller train, however, transmits a significantly lower torque, so that even with longer spinning machines a continuous shaft can be used without exceeding the allowable torsion.

Der ersten und zweiten Antriebsstelle kann jeweils ein gemeinsamer Motor für den Eingangswalzenstrang und den Mittelwalzenstrang zugeordnet sein. Die Motoren können mit dem Eingangswalzenstrang und dem Mittelwalzenstrang über Getriebe verbunden werden.The first and second drive point may each be assigned a common motor for the input roller train and the center roller train. The motors can be connected to the input roller train and the center roll train via gearbox.

Vorzugsweise wird der Motor der ersten Antriebsstelle drehzahlgeregelt an einem Frequenzumrichter betrieben und der Motor der zweiten Antriebsstelle wird an dem gleichen Frequenzumrichter betrieben. Bei dem Betrieb von zwei Motoren an einem Frequenzumrichter ist eine mechanische Kopplung der Motoren erforderlich, um den Gleichlauf der Motoren zu gewährleisten. Bei der vorliegenden Erfindung wird die mechanische Kopplung über die durchgehende Welle des Eingangswalzenstranges in einfacher Weise realisiert.Preferably, the motor of the first drive point is operated speed-controlled on a frequency converter and the motor of the second drive point is operated on the same frequency converter. When operating two motors on one frequency converter, a mechanical coupling of the motors is required to ensure the synchronization of the motors. In the present invention, the mechanical coupling via the continuous shaft of the input roller train is realized in a simple manner.

Gemäß einer vorteilhaften Ausführungsform der vorliegenden Erfindung ist der weiteren Antriebsstelle ein weiterer Motor zugeordnet. Vorteilhafterweise weist der Motor eine geringere Leistung auf als die Hauptantriebsmotoren. So kann der Motor an den Wellenabschnitt angreifen, ohne dass die Teilung der Arbeitsstellen verändert werden muss. Für den Motor ist zwar ein eigener Frequenzumrichter erforderlich. Die Regelung des Motor ist aber einfach zu realisieren, da der weitere Motor über die Teilung des Mittelwalzenstranges von den Motoren der ersten und zweiten Antriebsstelle entkoppelt ist. Vorzugsweise ist der Wellenabschnitt des Mittelwalzenstranges, der nicht mit der ersten und zweiten Antriebsstelle verbunden ist, über ein Getriebe mit dem weiteren Motor verbunden.According to an advantageous embodiment of the present invention, the further drive point is associated with a further motor. Advantageously, the engine has a lower power than the main drive motors. This allows the motor to engage the shaft section without having to change the pitch of the jobs. The motor requires its own frequency converter. However, the control of the engine is easy to implement, since the other motor is decoupled via the division of the center roll train of the motors of the first and second drive point. Preferably, the shaft portion of the center roll strand, which is not connected to the first and second drive point, connected via a transmission to the other motor.

Gemäß einer besonders vorteilhaften Ausführungsform ist der Wellenabschnitt des Mittelwalzenstranges, der nicht mit der ersten und zweiten Antriebsstelle verbunden ist, über ein Getriebe mit dem Eingangswalzenstrang verbunden. Diese Ausführungsform hat den Vorteil, dass für den separaten Wellenabschnitt des Mittelwalzenstranges kein zusätzlicher Antrieb erforderlich ist. Aufgrund des eher geringen Antriebsmomentes des Eingangswalzenstranges kann dieser problemlos das zusätzliche Moment bereitstellen.According to a particularly advantageous embodiment, the shaft portion of the center roll strand, which is not connected to the first and second drive point, connected via a gear to the input roller train. This embodiment has the advantage that no additional drive is required for the separate shaft portion of the center roll strand. Due to the rather low drive torque of the input roller train this can easily provide the additional moment.

Es hat sich als günstig herausgestellt, wenn der Mittelwalzenstrang zwischen der ersten und zweiten Antriebsstelle genau drei geteilte Wellenabschnitte aufweist. Dem Wellenabschnitt des Mittelwalzenstranges, der nicht mit der ersten und zweiten Antriebsstelle verbunden ist, sind vorteilhafterweise ein Viertel und den Wellenabschnitten, die mit der ersten oder zweiten Antriebsstelle verbunden sind, sind vorteilhafterweise drei Viertel der Streckwerke zwischen der ersten und zweiten Antriebsstelle zugeordnet. Auf diese Weise kann der Mittelwalzenstrang spürbar entlastet und die Torsion verringert werden. Auf der anderen Seite kann der weitere Motor klein dimensioniert werden beziehungsweise der Eingangswalzenstrang wird nur gering belastet.It has proved to be advantageous if the central roll strand between the first and second drive point has exactly three divided shaft sections. Advantageously, the shaft portion of the center roll strand which is not connected to the first and second drive points is a quarter and the shaft sections connected to the first or second drive point are advantageously associated with three quarters of the drafting devices between the first and second drive points. In this way, the center roll strand can be noticeably relieved and the torsion can be reduced. On the other hand, the more Motor are dimensioned small or the input roller train is only slightly loaded.

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

Es zeigen:

Fig. 1
eine erste Ausführungsform einer erfindungsgemäßen Spinnmaschine;
Fig. 2
eine zweite Ausführungsform einer erfindungsgemäßen Spinnmaschine.
Show it:
Fig. 1
a first embodiment of a spinning machine according to the invention;
Fig. 2
a second embodiment of a spinning machine according to the invention.

Die Fig. 1 zeigt schematisch den Aufbau einer erfindungsgemäßen Ringspinnmaschine. Die Darstellung beschränkt sich auf die zur Erläuterung relevanten Teile. Demnach wurde insbesondere auf die Darstellung der Faserbandzuführung der Spindeln und der Ringbank verzichtet. Die Darstellung beschränkt sich auf die Anordnung der Streckwerke und deren Abtrieb. Dabei ist zu beachten, dass die Darstellung nicht maßstäblich ist.The Fig. 1 shows schematically the structure of a ring spinning machine according to the invention. The presentation is limited to the parts relevant for explanation. Accordingly, in particular, the presentation of the sliver feed of the spindles and the ring rail was omitted. The presentation is limited to the arrangement of the drafting and their output. It should be noted that the representation is not to scale.

Bei der in Fig. 1 dargestellten Ringspinnmaschine handelt es sich um eine doppelseitige Ringspinnmaschine mit Streckwerken auf beiden Seiten. Die Ringspinnmaschine weist auf jeder Seite eine Vielzahl nebeneinander angeordneter Streckwerke 2 auf, von denen in Fig. 1 nur zwei dargestellt sind. Jedem Streckwerk 2 ist eine nicht dargestellte Spindel zugeordnet. Das Streckwerk 2 und die Spindel bilden gemeinsam eine Arbeitsstelle.At the in Fig. 1 shown ring spinning machine is a double-sided ring spinning machine with drafting on both sides. The ring spinning machine has on each side a plurality of juxtaposed drafting 2, of which in Fig. 1 only two are shown. Each drafting 2 is associated with a spindle, not shown. The drafting system 2 and the spindle together form a job.

Das Streckwerk 2 umfasst ein Eingangswalzenpaar, ein Mittelwalzenpaar und ein Ausgangswalzenpaar, von denen hier nur die Eingangsunterwalze 3, die Mittelunterwalze 4 und die Ausgangsunterwalze 5 dargestellt sind. Ferner ist in der Darstellung der Fig. 1 ein Verzugsriemchen 6 angedeutet, das die Mittelunterwalze 4 umschlingt. Die nebeneinander angeordneten Eingangsunterwalzen 3 bilden einen Eingangswalzenstrang 7. Die nebeneinander angeordneten Mittelunterwalzen 4 bilden einen Mittelwalzenstrang 8. Die nebeneinander angeordneten Ausgangsunterwalzen 5 bilden einen Ausgangswalzenstrang 9. Auf der anderen Seite der Maschine sind symmetrisch zur ersten Seite der Eingangswalzenstrang 7', der Mittelwalzenstrang 8' und der Ausgangswalzenstrang 9' angeordnet.The drafting system 2 comprises an input roller pair, a middle roller pair and an output roller pair, of which only the input lower roller 3, the lower middle roller 4 and the output lower roller 5 are shown. Furthermore, in the illustration of the Fig. 1 a Verzugsriemchen 6 indicated that wraps around the middle lower roller 4. The juxtaposed input sub-rollers 3 form an input roller train 7. The juxtaposed middle sub-rollers 4 form a center roller train 8. The juxtaposed output sub-rollers 5 form a Ausgangswalzenstrang 9. On the other side of the machine symmetrically to the first side of the input roller strand 7 ', the center roll strand 8' and the output roller strand 9 'arranged.

Die Eingangswalzenstränge 7 und 7' umfassen jeweils eine durchgehende Welle 22 und 22'. Die Ausgangswalzenstränge 9 und 9' umfassen jeweils eine durchgehende Welle 26 und 26'. Die Wellen 22, 22', 26 und 26' bestehen jeweils aus zwei Abschnitten, die jeweils über eine Gewindeverschraubung 27, 28, 27' und 28' miteinander verbunden sind. Der eine Abschnitt besteht wiederum aus Wellenabschnitten, die mit jeweils einem Rechtsgewinde miteinander verbunden sind und der andere Abschnitt besteht aus Wellenabschnitten, die jeweils mit einem Linksgewinde miteinander verbunden sind. Die Gewindeverschraubungen schaffen eine starre Verbindung der Abschnitte, so dass die Abschnitte insgesamt eine durchgehende Welle bilden. Die Mittelwalzenstränge 8 und 8' umfassen jeweils drei separate Wellenabschnitte 23, 24, 25 beziehungsweise 23', 24', 25'.The input roller strands 7 and 7 'each comprise a continuous shaft 22 and 22'. The output roller strands 9 and 9 'each comprise a continuous shaft 26 and 26'. The shafts 22, 22 ', 26 and 26' each consist of two sections which are connected to each other via a threaded connection 27, 28, 27 'and 28'. The one section in turn consists of shaft sections, which are connected to each other with a right-hand thread and the other section consists of shaft sections, which are each connected to one another with a left-hand thread. The threaded connections create a rigid connection of the sections so that the sections together form a continuous shaft. The center roll strands 8 and 8 'each comprise three separate shaft sections 23, 24, 25 and 23', 24 ', 25'.

Der Antrieb der Walzenstränge erfolgt an zwei Antriebsstellen 41 und 42 an den Enden der Ringspinnmaschine. Die Ausgangswalzenstränge 9 und 9' werden an jeder Antriebsstelle 41, 42 durch einen gemeinsamen Motor 10 und 12 angetrieben. Die Motoren 10 und 12 sind jeweils über die Getriebe 13 und 14 mit den Wellen 26 und 26' verbunden. Die Motoren 10 und 12 sind beide an einen nicht dargestellten Frequenzumrichter angeschlossen. Der Motor 10 dient dabei als führender Motor. Er ist drehzahlgeregelt und ist deshalb mit einem Resolver 11 ausgestattet. Der Motor 12 ist ein geführter Motor, der keine eigene Drehzahlregelung aufweist. Der Gleichlauf wird über die mechanische Kopplung durch die Wellen 26 und 26' realisiert.The drive of the roll cords takes place at two drive points 41 and 42 at the ends of the ring spinning machine. The output roller strands 9 and 9 'are driven at each driving location 41, 42 by a common motor 10 and 12. The motors 10 and 12 are connected via the gears 13 and 14 to the shafts 26 and 26 ', respectively. The motors 10 and 12 are both connected to a frequency converter, not shown. The engine 10 serves as a leading engine. It is speed-controlled and is therefore equipped with a resolver 11. The engine 12 is a guided engine that does not have its own speed control. The synchronization is realized via the mechanical coupling by the shafts 26 and 26 '.

Der Eingangswalzenstrang 7 und der Mittelwalzenstrang 8 werden an den Antriebsstellen 41, 42 an den Enden der Maschine gemeinsam angetrieben. Dazu sind an den Enden der Maschine die Motoren 15 und 17 angeordnet. Die gleichen Motoren 15 und 17 treiben auch den Eingangswalzenstrang 7' und den Mittelwalzenstrang 8' der anderen Seite der Ringspinnmaschine 1 an. Der Motor 15 ist über Getriebe 18 mit den Wellen 22 und 22' der Eingangswalzenstränge 7 und 7' verbunden. Der Motor 17 ist über Getriebe 20 ebenfalls mit den Wellen 22 und 22' der Eingangswalzenstränge 7 und 7' verbunden. Damit sind die beiden Motoren 15 und 17 über die Wellen 22 und 22' mechanisch gekoppelt. Die Motoren 15 und 17 werden ebenfalls über einen gemeinsamen nicht darstellten Frequenzumrichter angesteuert. Der Motor 15 weist einen Resolver 16 auf und dient als führender Motor. Der Motor 17 ist ein geführter Motor.The input roller train 7 and the center roller train 8 are driven together at the drive points 41, 42 at the ends of the machine. For this purpose, the motors 15 and 17 are arranged at the ends of the machine. The same motors 15 and 17 also drive the input roller train 7 'and the center roller train 8' of the other side of the ring spinning machine 1 at. The motor 15 is connected via gears 18 to the shafts 22 and 22 'of the input roller strands 7 and 7'. The motor 17 is also connected via gear 20 to the shafts 22 and 22 'of the input roller strands 7 and 7'. Thus, the two motors 15 and 17 are mechanically coupled via the shafts 22 and 22 '. The motors 15 and 17 are also on a common not shown frequency controlled. The motor 15 has a resolver 16 and serves as a leading motor. The engine 17 is a guided engine.

Der Wellenabschnitt 23 des Mittelwalzenstranges 8 ist über das Getriebe 19 mit dem Getriebe 18 beziehungsweise mit dem Motor. 15 verbunden. Der Wellenabschnitt 25 des Mittelwalzenstranges 8 ist über das Getriebe 21 mit dem Getriebe 20 beziehungsweise mit dem Motor 17 verbunden. Die Getriebe 19 und 21 sind als Vorverzugswechselräder ausgebildet. Die Wechselräder der Getriebe 19, 21 können ausgewechselt werden, um den Vorverzug anzupassen. Der Wellenabschnitt 24 des Mittelwalzenstranges 8 ist nicht mechanisch mit den Wellenabschnitten 23 und 25 gekoppelt. Der Antrieb des Wellenabschnitts 24 erfolgt durch eine weitere Antriebsstelle 43. In dem in Fig. 1 gezeigten Ausführungsbeispiel treibt ein zusätzlicher Motor 29 über das Getriebe 30 den Wellenabschnitt 24 an. Der Motor verfügt über einen eigenen Frequenzumrichter, so dass die Drehzahl leicht an einen geänderten Vorverzug angepasst werden kann. Der Mittelwalzenstrang 8' der anderen Seite der Ringspinnmaschine 1 ist analog aufgebaut. Die Walzenschnitte 23' und 25' werden über die Verzugswechselräder 19' und 21' angetrieben. Der Antrieb des Walzenabschnittes 24 erfolgt über den zusätzlichen Motor 29' und das Getriebe 30'.The shaft portion 23 of the center roll train 8 is via the transmission 19 with the gear 18 and the motor. 15 connected. The shaft portion 25 of the center roll strand 8 is connected via the gear 21 to the gear 20 and the motor 17, respectively. The gears 19 and 21 are formed as Vorverzugswechselräder. The change gears of the transmission 19, 21 can be replaced to adjust the Vorverzug. The shaft portion 24 of the center roll strand 8 is not mechanically coupled to the shaft portions 23 and 25. The drive of the shaft portion 24 is effected by a further drive point 43. In the in Fig. 1 shown embodiment drives an additional motor 29 via the gear 30, the shaft portion 24 at. The motor has its own frequency converter, so that the speed can be easily adapted to a changed pre-delay. The middle roll strand 8 'of the other side of the ring spinning machine 1 is constructed analogously. The roll cuts 23 'and 25' are driven via the default change wheels 19 'and 21'. The drive of the roller section 24 via the additional motor 29 'and the gear 30'.

In dem darstellten Ausführungsbeispiel sind den Wellenabschnitten 23 und 25 jeweils 3/8 der Streckwerke zugeordnet. Das heißt, die Wellenabschnitte 23 und 25 treiben zusammen 3/4 der Streckwerke an. Dem Wellenabschnitt 24 sind entsprechend 1/4 der Streckwerke zugeordnet. Dementsprechend wird das Antriebsmoment, dass für den Mittelwalzenstrang 8 an den Antriebsstellen an den Maschinenenden aufgebracht werden muss, um 1/4 reduziert. Auf diese Weise wird auch die Torsion verringert.In the illustrated embodiment, the shaft sections 23 and 25 are each assigned 3/8 of the drafting systems. That is, the shaft portions 23 and 25 drive together 3/4 of the drafting systems. The shaft portion 24 are assigned according to 1/4 of the drafting. Accordingly, the drive torque that must be applied to the centerline roll 8 at the drive points at the machine ends, reduced by 1/4. In this way, the torsion is reduced.

Bei einer Gesamtzahl der Arbeitsstellen an jeder Seite der Ringspinnmaschine 1 von 1920 Spindeln wird auf die Wellenabschnitte 23 und 25 des Mittelwalzenstranges 8 jeweils ein Moment von 120Nm aufgebracht. Der mittlere Wellenabschnitt 24 wird mit 80Nm beaufschlagt. Auf den Eingangswalzenstrang 7 wirken von jeder der beiden Antriebsseiten 35Nm ein. Die Antriebsmomente des Eingangswalzenstranges 7 sind deutlich geringer als die Antriebsmomente des Mittelwalzenstranges. Diesen Sachverhalt macht sich die Ausführungsform der Fig. 2 zunutze.With a total number of jobs on each side of the ring spinning machine 1 of 1920 spindles a moment of 120 Nm is applied to the shaft portions 23 and 25 of the center roll strand 8 respectively. The middle shaft portion 24 is supplied with 80Nm. On the input roller 7 act from each of the two drive sides 35Nm. The drive torques of the input roller train 7 are significantly lower than the drive torques of the center roller train. This fact makes the embodiment of the Fig. 2 advantage.

Die Ausführungsform der Fig. 2 stimmt weitgehend mit der Ausführungsform der Fig. 1 überein. Für gleiche Elemente wurden gleiche Bezugszeichen verwendet, so dass diese nicht erneut erläutert werden. Es wird lediglich auf die Unterschiede eingegangen. Die Wellenabschnitte 24 und 24' der Mittelwalzenstränge 8 und 8' sind an der weiteren Antriebsstelle 43 jeweils über Getriebe 31 und 31' mit den Wellen 22 und 22' verbunden. Damit ist für die Wellenabschnitte 24 und 24' kein eigener Motor erforderlich. Die Getriebe 31 und 31' müssen lediglich entsprechend der Getriebe 19, 19', 21 und 21' an ein geändertes Vorverzugsverhältnis anpassbar sein. Das auf die Wellen 22 und 22' der Eingangswalzenstränge 7 und 7' wirkende Drehmoment erhöht sich für jede Antriebsstelle 41, 42 auf 75 Nm. Damit bleibt das Moment aber deutlich unter dem Moment von 120 Nm, das an den Maschinenenden auf den Mittelwalzenstrang 8, 8' aufgebracht werden muss. Auf diese Weise kann eine bessere Verteilung der erforderlichen Antriebsmomente erreicht werden.The embodiment of the Fig. 2 is largely consistent with the embodiment of Fig. 1 match. Like reference numerals have been used for like elements so that they will not be explained again. It only goes into the differences. The shaft sections 24 and 24 'of the center roll strands 8 and 8' are connected to the further drive point 43 via gear 31 and 31 'with the shafts 22 and 22'. Thus, no separate motor is required for the shaft sections 24 and 24 '. The transmissions 31 and 31 'only have to be adaptable to a changed pre-delay ratio in accordance with the transmissions 19, 19', 21 and 21 '. The torque acting on the shafts 22 and 22 'of the input roller strands 7 and 7' increases to 75 Nm for each drive point 41, 42. This leaves the moment but clearly below the moment of 120 Nm, which must be applied to the machine ends on the center roll strand 8, 8 '. In this way, a better distribution of the required drive torques can be achieved.

Claims (8)

  1. Spinning machine (1), more particularly ring spinning machine, with many adjacently arranged drafting systems (2) for drafting a sliver, wherein the drafting systems (2) each have a lower input roller (3), a lower middle roller (4) and a lower output roller (5), where the lower middle roller (3) is arranged in the running direction of the sliver between the lower input roller (3) and the lower output roller (5) and the adjacently arranged lower input rollers (3) form a series of input rollers (7, 7'), the adjacently arranged lower middle rollers (4) form a series of middle rollers (8, 8') and the adjacently arranged lower output rollers (5) form a series of output rollers, wherein the series of input rollers (7, 7') has a shaft (22, 22') on which the lower input rollers (3) are arranged, and the series of middle rollers (8, 8') has a shaft (23, 23,' 24, 24', 25, 25') on which the lower middle rollers (4) are arranged, and the series of output rollers (9, 9') has a shaft (26, 26') on which lower output rollers (5) are arranged, in which case the shafts (22, 22, 23, 23', 24, 24', 25, 25', 26, 26') can be set in rotation by a drive and torque can be transferred to the lower input rollers (3), the lower middle rollers (4) and the lower output roller (5), wherein the drive has a first and a second drive position (41, 42) on which the series of input rollers (7, 7') and the series of middle rollers (8, 8') are driven,
    characterised in that,
    the series of input rollers (7, 7') has a continuous shaft (22, 22') between the first and second drive positions (41, 42) and the series of middle rollers (8, 8') has at least three separate shaft sections (23, 23', 24, 24', 25, 25') between the first and second drive positions (41, 42), in which case one shaft section (24, 24') that is not connected with the first and second drive positions (41, 42) is connected to a further drive position (43).
  2. Spinning machine (1) according to claim 1 characterised in that a common motor (15, 17) for the series of input rollers (7, 7') and the series of middle rollers (8, 8') is assigned to each of the first and second drive positions (41, 42).
  3. Spinning machine (1) according to claim 2 characterised in that the motors (15, 17) are connected with the series of input rollers and the series of middle rollers via gearing (18, 19, 19', 20, 21, 21').
  4. Spinning machine (1), according to one of the claims 2 or 3, characterised in that the motor (15) of the first drive position (41) is operated in a speed-controlled manner with a frequency inverter and the motor (17) of the second drive position (42) is operated with the same frequency inverter.
  5. Spinning machine (1) according to one of the claims 1 to 4, characterised in that a further motor (29, 29') is assigned to the further drive position (43).
  6. Spinning machine (1) according to claim 5, characterised in that the shaft section (24, 24') of the series of middle rollers (8, 8'), which is not connected with the first and second drive position (41, 42), is connected to the further motor (29, 29') via a gearing (30, 30').
  7. Spinning machine (1) according to one of the claims 1 to 3, characterised in that the shaft section (24, 24') of the series of middle rollers (8, 8'), which is not connected with the first and second drive position (41, 42), is connected to the series of input rollers (7, 7') via a gearing (31, 31').
  8. Spinning machine (1) according to one of the aforementioned claims characterised in that the series of middle rollers (8, 8') has exactly three separate shaft sections (23, 23', 24, 24', 25, 25') between the first and second drive positions (41, 42), the shaft section (24, 24') of the series of middle rollers (8, 8') that is not connected with the first and second drive positions (41, 42) is assigned a quarter and the shaft sections (23, 23', 25, 25') that are connected with the first or second drive position (41, 42) are assigned three-quarters of the drafting system between the first and second drive positions (41, 42).
EP16001665.5A 2015-08-19 2016-07-28 Spinning machine with a plurality of stretching units next to one another Active EP3133192B1 (en)

Applications Claiming Priority (1)

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DE102015010854.9A DE102015010854A1 (en) 2015-08-19 2015-08-19 Spinning machine with a plurality of juxtaposed drafting systems

Related Parent Applications (1)

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EP3133192A1 EP3133192A1 (en) 2017-02-22
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EP (1) EP3133192B1 (en)
JP (1) JP6823965B2 (en)
CN (1) CN106467989B (en)
DE (1) DE102015010854A1 (en)
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Publication number Priority date Publication date Assignee Title
DE102018102232A1 (en) * 2018-02-01 2019-08-01 Saurer Spinning Solutions Gmbh & Co. Kg Double-sided ring spinning machine with drafting units
DE102018132951A1 (en) 2018-12-19 2020-06-25 Saurer Spinning Solutions Gmbh & Co. Kg Ring spinning machine with drafting systems
CN110144645A (en) * 2019-06-05 2019-08-20 上海华鸢机电有限公司 Rear roller driving device and driving method in a kind of spinning frame

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DE2911379C3 (en) * 1979-03-23 1995-02-23 Zinser Textilmaschinen Gmbh Long spinning machine
JPS59150123A (en) * 1983-02-16 1984-08-28 Toyoda Autom Loom Works Ltd Drive mechanism for draft roller in spinning machinery
JPS59192732A (en) * 1983-04-11 1984-11-01 Toyoda Autom Loom Works Ltd Driving mechanism of draft roller in spinning machinery
JPH0941229A (en) * 1995-07-26 1997-02-10 Howa Mach Ltd Ending in spinning machine
DE19531301A1 (en) * 1995-08-25 1997-02-27 Stahlecker Fritz Long spinning machine with low torsion on the drafting frame shafts
DE10040420A1 (en) * 2000-08-18 2002-02-28 Rieter Ag Maschf Sliver drawing unit, for a ring spinner, has a number of lower cylinder assemblies each with a number of drive points between their end bearing mountings for a trouble-free operation without torsion problems
DE10137140C1 (en) * 2001-07-30 2003-01-09 Zinser Textilmaschinen Gmbh Double-sided ring spinner, with sliver drawing units on both sides, has a master electromotor for the center lower roller of the drawing unit on one side acting on the electromotor for the center lower roller on the other side
JP4670522B2 (en) * 2005-07-19 2011-04-13 株式会社豊田自動織機 Draft device in spinning machine
DE102005054817A1 (en) * 2005-11-15 2007-05-24 Saurer Gmbh & Co. Kg Ring spinning machine comprises drawframes whose draw rollers are driven by a main drive unit and have auxiliary drive units distributed along their length
JP5189492B2 (en) 2005-11-15 2013-04-24 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト Ring spinning machine with stretching mechanism
IT1404332B1 (en) * 2011-02-24 2013-11-22 Marzoli Spa MOTORIZATION SYSTEM FOR DISPLACEMENT OF A DRAWER UNIT.
CN204918898U (en) * 2014-08-01 2015-12-30 拉克施米机械制造有限公司 A drive arrangement that is used for ring type spinning machine's draft roller

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ES2664423T3 (en) 2018-04-19
CN106467989B (en) 2018-10-30
CN106467989A (en) 2017-03-01
JP6823965B2 (en) 2021-02-03
JP2017040030A (en) 2017-02-23
DE102015010854A1 (en) 2017-02-23
EP3133192A1 (en) 2017-02-22

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