EP0374723B1 - Combing machine - Google Patents

Combing machine Download PDF

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Publication number
EP0374723B1
EP0374723B1 EP89123089A EP89123089A EP0374723B1 EP 0374723 B1 EP0374723 B1 EP 0374723B1 EP 89123089 A EP89123089 A EP 89123089A EP 89123089 A EP89123089 A EP 89123089A EP 0374723 B1 EP0374723 B1 EP 0374723B1
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EP
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Prior art keywords
electromotor
combing
combing machine
cylinder
detaching
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EP89123089A
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German (de)
French (fr)
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EP0374723A2 (en
EP0374723A3 (en
Inventor
Heinz Clement
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/26—Driving arrangements

Definitions

  • the invention relates to a combing machine with at least one combing head, which contains a continuously rotatable circular comb roller, a reciprocating pliers unit and at least one tear-off cylinder rotatable with a pilgrim step movement.
  • the round comb roller is continuously rotated by a drive motor.
  • the tear-off cylinder In each comb play, ie usually during each revolution of the circular comb roller, the tear-off cylinder must first be rotated backwards by a certain angle and then rotated forwards by another, larger angle.
  • this movement of the tear-off cylinder is derived from the rotation of the circular comb roller via a mechanical gear.
  • Such a transmission is very complicated and therefore expensive.
  • it contains relatively large masses that can be moved back and forth, which have a disadvantageous effect at higher comb play rates (revolutions of the circular comb roller), for example 350 to 400 per minute.
  • a device for driving the tear-off cylinders in which the intermittent drive movement of the tear-off cylinders takes place via a planetary gear differential in connection with an articulated pentagon with corresponding coupling links.
  • This drive is relatively complex and large flywheels have to be moved.
  • a drive device for the tear-off cylinder in which the drive is removed from a central gear via spur gear and coupling members.
  • the central gear is driven by a drive motor.
  • the drive of the tear-off cylinders represents an additional load on the main transmission, in particular with regard to the required dynamic acceleration of correspondingly large flywheels.
  • the object of the invention is to design the drive for the tear-off cylinder in the combing machine specified at the outset in such a way that the required movements of the tear-off cylinder can be produced with large masses which can be moved back and forth without expensive gear.
  • the object is achieved in that at least one electric motor is arranged in the combing machine according to the invention for rotating the tear-off cylinder with the vocational step movement.
  • the electric motor for example a brushless DC motor or an asynchronous motor, can be fed by a control device with drive pulses which are synchronized with the rotation of the circular comb roller, so that the motor first rotates backwards and then forwards during each comb play, preferably via a reduction gear . It is also possible to arrange a separate electric motor for the reverse and the forward rotation of the tear-off cylinder, each motor being connected to the tear-off cylinder via a coupling.
  • the combing head shown schematically in FIG. 1 has a circular comb roller 1, which is rotatable continuously by a drive motor (not shown) and which carries a circular comb segment 2, and a pliers assembly consisting of lower pliers 3 and upper pliers 4.
  • the lower jaw 3 is articulated at its front end to front supports 5 which can be pivoted about the axis of the circular comb roller 1 and is articulated at its rear end to tong arms 6 which are seated on a tong shaft 7 which can be pivoted back and forth.
  • the upper tongs 4 can be pivoted about an axis 8 with respect to the lower tongs 3.
  • the combing head also has two tear-off cylinders 9 and 10, on each of which a tear-off pressure roller 11 or 12 rests, and a pair of draw-off rollers 13.
  • a cotton wool W to be combed is fed from a cotton roll 14, which rests on two rotatable winding rollers 15 and 16, to an intermittently rotatable feed cylinder 17, which is mounted in the lower tongs 3.
  • the forceps unit 3, 4 In a retracted position (not shown) of the forceps unit 3, 4, the forceps unit 3, 4 is closed and holds a front end portion of the cotton wool W protruding from the forceps unit in the form of a fiber beard.
  • the fiber beard is combed out by the circular comb segment 2 on the rotating circular comb roller 1. Subsequently the pliers unit 3, 4 is moved into the advanced, open position shown.
  • the tear-off cylinders 9 and 10 have meanwhile been rotated backwards by a predetermined angle in order to allow the rear end section of the previously combed sliver F to emerge from the clamping point of the tear-off cylinder 9 with the tear-off pressure roller 11 to the rear (towards the pliers assembly).
  • the combed fiber from the round comb segment 2 lies on this end section and is pulled together with this back into the nip of the tear-off cylinder 9 with the tear-off pressure roller 11 when the tear-off cylinders 9 and 10 are then rotated forward.
  • the tear-off cylinders 9 and 10 are rotated forward by a second predetermined angle, which is greater than the first predetermined angle, for example approximately twice as large, and they tear off the fiber beard from the cotton wool lying in the pliers unit 3, 4. Normally, the fiber beard is pulled through a fixed comb, which, however, has not been shown in the drawing in order not to impair the clarity.
  • the tear-off cylinders 9 and 10 must therefore first be rotated backwards by a predetermined angle in each comb play and then rotated forward by another, larger predetermined angle. This movement is called the pilgrim step movement.
  • at least one electric motor 18, for example a brushless DC motor or an asynchronous motor is provided for rotating the tear-off cylinders 9 and 10 with the described mit step movement.
  • the motor 18 is connected to the tear-off cylinders 9 and 10 via a reduction gear.
  • this contains a gearwheel 19 on the shaft of the motor 18 which is coupled to a second gearwheel 21 via a toothed belt 20.
  • the gears 22 and 23 mesh with a pinion 24, which is seated on the shaft of the gear 21.
  • An electronic program control device 25 supplies the electric motor 18 with electrical drive pulses via an amplifier 26, so that the electric motor 18 rotates the tear-off cylinders 9 and 10 through the required angles during each comb play.
  • the drive pulses are synchronized with the rotation of the round comb roller 1.
  • the control device 25 is supplied with output signals from a speed sensor or position sensor 27 which scans markings on an element (not shown) carried on the shaft of the circular comb roller 1.
  • the control device 25 can expediently contain a controller which adjusts the output drive pulses in such a way that the tear-off cylinders 9 and 10 are each rotated through the required predetermined angles.
  • this controller is supplied with output signals from a speed sensor or position sensor 28, which scans markings on an element (not shown) carried on the shaft of the motor 18.
  • the control device 25 and the amplifier 26 are fed by a power supply device 29.
  • a combing machine usually contains several combing heads arranged in a row of the type described above.
  • FIG. 3 shows, similar to FIG. 2, a schematic partial plan view of the tear-off cylinder 9 and 10 of several combing heads of a combing machine.
  • an electric motor 18 ' is arranged, which rotates the tear-off cylinders 9 and 10 via the gear 19, 20, 21, 22, 23, 24 backwards.
  • a clutch 32 is additionally arranged in the transmission between the gear wheels 21 and 24.
  • a second electric motor 18 ′′ is arranged for the forward rotation of the tear-off cylinders 9 and 10.
  • the clutch 32 is again arranged.
  • the control device 25 leads the electric motors 18 'and 18 ⁇ drive pulses to and / or actuates the clutches 32 in order to rotate the tear-off cylinders 9 and 10 backwards and then forwards through the required angles during each comb play.
  • freewheels could also be used, in particular unlockable freewheels, so that the motor 18 ⁇ is not rotated when the motor 18 'rotates the tear-off cylinders 9 and 10 in reverse, and vice versa.
  • the reversible electric motor 18 (FIGS. 1, 2) drives only the tear-off cylinders 9 via the gear 19, 20, 21, 22, 24 - without the gearwheel 23 on the shaft 31 - the tear-off cylinders 10 then become one second reversible electric motor (not shown) driven, which is arranged at the other end of the shafts 30 and 31 and is coupled to the shaft 31 via a reduction gear (similar to the gear 19, 20, 21, 23, 24).
  • the electric motor 18 and the second electric motor, not shown, are fed by the control device 25 with the same, synchronous drive pulses.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die Erfindung bezieht sich auf eine Kämmaschine mit wenigstens einem Kämmkopf, der eine kontinuierlich drehbare Rundkammwalze, ein hin- und herbewegbares Zangenaggregat und wenigstens einen mit einer Pilgerschrittbewegung drehbaren Abreisszylinder enthält.The invention relates to a combing machine with at least one combing head, which contains a continuously rotatable circular comb roller, a reciprocating pliers unit and at least one tear-off cylinder rotatable with a pilgrim step movement.

In bekannten Kämmaschinen dieser Art wird die Rundkammwalze von einem Antriebsmotor kontinuierlich gedreht. Der Abreisszylinder muss in jedem Kammspiel, d.h. in der Regel während jeder Umdrehung der Rundkammwalze, zuerst durch einen bestimmten Winkel rückwärts gedreht werden und anschliessend durch einen anderen, grösseren Winkel vorwärts gedreht werden. Diese Bewegung des Abreisszylinders wird in den bekannten Kämmaschinen über ein mechanisches Getriebe von der Drehung der Rundkammwalze abgeleitet. Ein solches Getriebe ist sehr kompliziert und daher teuer. Zudem enthält es relativ grosse hin und her zu bewegende Massen, die sich bei höheren Kammspielzahlen (Umdrehungszahlen der Rundkammwalze), z.B. 350 bis 400 pro Minute, nachteilig auswirken.In known combing machines of this type, the round comb roller is continuously rotated by a drive motor. In each comb play, ie usually during each revolution of the circular comb roller, the tear-off cylinder must first be rotated backwards by a certain angle and then rotated forwards by another, larger angle. In the known combing machines, this movement of the tear-off cylinder is derived from the rotation of the circular comb roller via a mechanical gear. Such a transmission is very complicated and therefore expensive. In addition, it contains relatively large masses that can be moved back and forth, which have a disadvantageous effect at higher comb play rates (revolutions of the circular comb roller), for example 350 to 400 per minute.

Aus der FR-A-2 343 835 ist eine Einrichtung zum Antrieb der Abreisszylinder bekannt, bei welcher die intermitierende Antriebsbewegung der Abreisszylinder über ein Planetenraddifferenzial in Verbindung mit einem Gelenkfünfeck mit entsprechenden Koppelgliedern erfolgt. Dieser Antrieb ist relativ aufwendig und es müssen grosse Schwungmassen bewegt werden.From FR-A-2 343 835 a device for driving the tear-off cylinders is known, in which the intermittent drive movement of the tear-off cylinders takes place via a planetary gear differential in connection with an articulated pentagon with corresponding coupling links. This drive is relatively complex and large flywheels have to be moved.

Aus der weiterhin bekannten CH-A-395815 ist eine Antriebseinrichtung für die Abreisszylinder zu entnehmen, bei welcher über Stirnradgetriebe und Koppelglieder der Antrieb von einem zentralen Getriebe abgenommen wird. Dabei wird das zentrale Getriebe von einem Antriebsmotor angetrieben. Auch bei dieser Einrichtung stellt der Antrieb der Abreisszylinder eine zusätzliche Belastung des Hauptgetriebes dar, insbesondere in bezug auf die erforderliche dynamische Beschleunigung entsprechend grosser Schwungmassen.From the still known CH-A-395815, a drive device for the tear-off cylinder can be found, in which the drive is removed from a central gear via spur gear and coupling members. The central gear is driven by a drive motor. In this device, too, the drive of the tear-off cylinders represents an additional load on the main transmission, in particular with regard to the required dynamic acceleration of correspondingly large flywheels.

Ein weiteres Ausführungsbeispiel ist aus der US-PS 3,960,024 zu entnehmen, wobei ebenfalls der Antrieb der Abreisszylinder über ein Zahnradgetriebe vom Hauptgetriebe abgenommen wird. Auch hierbei entstehen die bereits zuvor beschriebenen Nachteile der dynamischen Belastung des Hauptgetriebes.A further exemplary embodiment can be found in US Pat. No. 3,960,024, the drive of the tear-off cylinders also being removed from the main transmission via a gear transmission. The disadvantages of the dynamic loading of the main transmission described above also arise here.

Weiterhin ist aus der US-PS 3,490,298 eine Einrichtung bekannt, bei welcher ein Abreisszylinderpaar in einem Schwenkarm drehbar gelagert ist. Hierbei wird jedoch lediglich die Verschwenkbewegung der Abreisszylinder in bezug auf das Zangenaggregat beschrieben. Eine Ausführung des Drehantriebes der Abreisszylinder wird hierbei nicht aufgezeigt.Furthermore, a device is known from US Pat. No. 3,490,298 in which a pair of tear-off cylinders is rotatably mounted in a swivel arm. Here, however, only the pivoting movement of the tear-off cylinder with respect to the pliers unit is described. An execution of the rotary drive of the tear-off cylinder is not shown here.

Die Aufgabe der Erfindung besteht darin, in der eingangs angegebenen Kämmaschine den Antrieb für den Abreisszylinder so auszubilden, dass die erforderlichen Bewegungen des Abreisszylinders ohne teures Getriebe mit grossen hin und her zu bewegenden Massen erzeugt werden können.The object of the invention is to design the drive for the tear-off cylinder in the combing machine specified at the outset in such a way that the required movements of the tear-off cylinder can be produced with large masses which can be moved back and forth without expensive gear.

Die Aufgabe wird dadurch gelöst, dass in der erfindungsgemässen Kämmaschine zum Drehen des Abreisszylinders mit der Pilgerschrittbewegung wenigstens ein Elektromotor angeordnet ist.The object is achieved in that at least one electric motor is arranged in the combing machine according to the invention for rotating the tear-off cylinder with the pilgrim step movement.

Der Elektromotor, z.B. ein bürstenloser Gleichstrommotor oder ein Asynchronmotor, kann von einer Steuereinrichtung mit Antriebsimpulsen gespeist werden, die mit der Drehung der Rundkammwalze synchronisiert sind, so dass der Motor den Abreisszylinder, vorzugsweise über ein Untersetzungsgetriebe, während jedes Kammspiels zuerst rückwärts und dann vorwärts dreht. Es ist aber auch möglich, für das Rückwärts- und das Vorwärtsdrehen des Abreisszylinders je einen gesonderten Elektromotor anzuordnen, wobei jeder Motor mit dem Abreisszylinder jeweils über eine Kupplung verbunden ist.The electric motor, for example a brushless DC motor or an asynchronous motor, can be fed by a control device with drive pulses which are synchronized with the rotation of the circular comb roller, so that the motor first rotates backwards and then forwards during each comb play, preferably via a reduction gear . It However, it is also possible to arrange a separate electric motor for the reverse and the forward rotation of the tear-off cylinder, each motor being connected to the tear-off cylinder via a coupling.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigen:

  • Fig. 1 Teile eines Kämmkopfes einer Kämmaschine in einem schematischen Vertikalschnitt,
  • Fig. 2 eine schematische Teildraufsicht auf die Abreisszylinder einer Kämmaschine mit mehreren Kämmköpfen und
  • Fig. 3 in einer ähnlichen Draufsicht wie Fig. 2 eine Variante.
Embodiments of the invention are explained below with reference to the drawing. In this show:
  • 1 parts of a combing head of a combing machine in a schematic vertical section,
  • Fig. 2 is a schematic partial plan view of the tear-off cylinder of a combing machine with several combing heads and
  • Fig. 3 in a plan view similar to Fig. 2 shows a variant.

Der in Fig. 1 schematisch dargestellte Kämmkopf besitzt eine durch einen nicht dargestellten Antriebsmotor kontinuierlich drehbare Rundkammwalze 1, welche ein Rundkammsegment 2 trägt, und ein aus einer Unterzange 3 und einer Oberzange 4 bestehendes Zangenaggregat. Die Unterzange 3 ist bei ihrem vorderen Ende an um die Achse der Rundkammwalze 1 schwenkbaren Vorderstützen 5 angelenkt und ist bei ihrem hinteren Ende an Zangenarmen 6 angelenkt, welche auf einer hin- und herschwenkbaren Zangenwelle 7 sitzen. Die Oberzange 4 ist bezüglich der Unterzange 3 um eine Achse 8 schwenkbar. Weiter besitzt der Kämmkopf zwei Abreisszylinder 9 und 10, auf welchen je eine Abreissdruckwalze 11 bzw. 12 aufliegt, und ein Abzugwalzenpaar 13.The combing head shown schematically in FIG. 1 has a circular comb roller 1, which is rotatable continuously by a drive motor (not shown) and which carries a circular comb segment 2, and a pliers assembly consisting of lower pliers 3 and upper pliers 4. The lower jaw 3 is articulated at its front end to front supports 5 which can be pivoted about the axis of the circular comb roller 1 and is articulated at its rear end to tong arms 6 which are seated on a tong shaft 7 which can be pivoted back and forth. The upper tongs 4 can be pivoted about an axis 8 with respect to the lower tongs 3. The combing head also has two tear-off cylinders 9 and 10, on each of which a tear-off pressure roller 11 or 12 rests, and a pair of draw-off rollers 13.

Eine zu kämmende Watte W wird von einem Wattewickel 14, der auf zwei drehbaren Wickelwalzen 15 und 16 aufliegt, einem in der Unterzange 3 gelagerten, intermittierend drehbaren Speisezylinder 17 zugeführt. In einer zurückgezogenen Stellung (nicht dargestellt) des Zangenaggregates 3, 4 ist dieses geschlossen und hält einen aus dem Zangenaggregat herausragenden vorderen Endabschnitt der Watte W in Form eines Faserbartes fest. Der Faserbart wird von dem Rundkammsegment 2 auf der rotierenden Rundkammwalze 1 ausgekämmt. Anschliessend wird das Zangenaggregat 3, 4 in die dargestellte vorgeschobene, geöffnete Stellung bewegt. Die Abreisszylinder 9 und 10 sind inzwischen durch einen vorbestimmten Winkel rückwärts gedreht worden, um den hinteren Endabschnitt des zuvor gekämmten Faserbandes F aus der Klemmstelle des Abreisszylinders 9 mit der Abreissdruckwalze 11 nach hinten (zum Zangenaggregat hin) heraustreten zu lassen. Der vom Rundkammsegment 2 ausgekämmte Faserbart legt sich auf diesen Endabschnitt und wird mit diesem zusammen wieder in die Klemmstelle des Abreisszylinders 9 mit der Abreissdruckwalze 11 gezogen, wenn die Abreisszylinder 9 und 10 anschliessend vorwärts gedreht werden. Die Abreisszylinder 9 und 10 werden vorwärts durch einen zweiten vorbestimmten Winkel gedreht, der grösser ist als der erstgenannte vorbestimmte Winkel, z.B. etwa doppelt so gross, und sie reissen dabei den Faserbart von der im Zangenaggregat 3, 4 liegenden Watte ab. Normalerweise wird der Faserbart dabei durch einen Fixkamm hindurchgezogen, der jedoch in der Zeichnung nicht dargestellt worden ist, um die Uebersichtlichkeit nicht zu beeinträchtigen.A cotton wool W to be combed is fed from a cotton roll 14, which rests on two rotatable winding rollers 15 and 16, to an intermittently rotatable feed cylinder 17, which is mounted in the lower tongs 3. In a retracted position (not shown) of the forceps unit 3, 4, the forceps unit 3, 4 is closed and holds a front end portion of the cotton wool W protruding from the forceps unit in the form of a fiber beard. The fiber beard is combed out by the circular comb segment 2 on the rotating circular comb roller 1. Subsequently the pliers unit 3, 4 is moved into the advanced, open position shown. The tear-off cylinders 9 and 10 have meanwhile been rotated backwards by a predetermined angle in order to allow the rear end section of the previously combed sliver F to emerge from the clamping point of the tear-off cylinder 9 with the tear-off pressure roller 11 to the rear (towards the pliers assembly). The combed fiber from the round comb segment 2 lies on this end section and is pulled together with this back into the nip of the tear-off cylinder 9 with the tear-off pressure roller 11 when the tear-off cylinders 9 and 10 are then rotated forward. The tear-off cylinders 9 and 10 are rotated forward by a second predetermined angle, which is greater than the first predetermined angle, for example approximately twice as large, and they tear off the fiber beard from the cotton wool lying in the pliers unit 3, 4. Normally, the fiber beard is pulled through a fixed comb, which, however, has not been shown in the drawing in order not to impair the clarity.

Die Abreisszylinder 9 und 10 müssen also in jedem Kammspiel zuerst durch einen vorbestimmten Winkel rückwärts gedreht werden und dann durch einen anderen, grösseren vorbestimmten Winkel vorwärts gedreht werden. Diese Bewegung wird Pilgerschrittbewegung genannt. Erfindungsgemäss ist zum Drehen der Abreisszylinder 9 und 10 mit der beschriebenen Pilgerschrittbewegung wenigstens ein Elektromotor 18 vorgesehen, z.B. ein bürstenloser Gleichstrommotor oder ein Asynchronmotor. Der Motor 18 ist mit den Abreisszylindern 9 und 10 über ein Untersetzungsgetriebe verbunden. Dieses enthält im dargestellten Beispiel ein Zahnrad 19 auf der Welle des Motors 18, das über einen Zahnriemen 20 mit einem zweiten Zahnrad 21 gekuppelt ist. Auf der Welle jedes der Abreisszylinder 9 und 10 sitzt je ein Zahnrad 22 bzw. 23. Die Zahnräder 22 und 23 kämmen mit einem Ritzel 24, das auf der Welle des Zahnrads 21 sitzt.The tear-off cylinders 9 and 10 must therefore first be rotated backwards by a predetermined angle in each comb play and then rotated forward by another, larger predetermined angle. This movement is called the pilgrim step movement. According to the invention, at least one electric motor 18, for example a brushless DC motor or an asynchronous motor, is provided for rotating the tear-off cylinders 9 and 10 with the described pilgrim step movement. The motor 18 is connected to the tear-off cylinders 9 and 10 via a reduction gear. In the example shown, this contains a gearwheel 19 on the shaft of the motor 18 which is coupled to a second gearwheel 21 via a toothed belt 20. On the shaft of each of the tear-off cylinders 9 and 10 there is a gear 22 and 23, respectively. The gears 22 and 23 mesh with a pinion 24, which is seated on the shaft of the gear 21.

Eine elektronische Programmsteuereinrichtung 25 führt dem Elektromotor 18 über einen Verstärker 26 elektrische Antriebsimpulse zu, so dass der Elektromotor 18 die Abreisszylinder 9 und 10 während jedes Kammspiels durch die erforderlichen Winkel dreht. Die Antriebsimpulse sind mit der Drehung der Rundkammwalze 1 synchronisiert. Zu diesem Zweck sind der Steuereinrichtung 25 Ausgangssignale eines Drehzahlaufnehmers oder Positionsgebers 27 zugeführt, der Markierungen auf einem auf der Welle der Rundkammwalze 1 getragenen Element (nicht dargestellt) abtastet. Die Steuereinrichtung 25 kann zweckmässig einen Regler enthalten, der die abgegebenen Antriebsimpulse so einstellt, dass die Abreisszylinder 9 und 10 jeweils durch die erforderlichen, vorbestimmten Winkel gedreht werden. Als Regelgrösse sind diesem Regler Ausgangssignale eines Drehzahlaufnehmers oder Positionsgebers 28 zugeführt, der Markierungen auf einem auf der Welle des Motors 18 getragenen Element (nicht dargestellt) abtastet.An electronic program control device 25 supplies the electric motor 18 with electrical drive pulses via an amplifier 26, so that the electric motor 18 rotates the tear-off cylinders 9 and 10 through the required angles during each comb play. The drive pulses are synchronized with the rotation of the round comb roller 1. For this purpose, the control device 25 is supplied with output signals from a speed sensor or position sensor 27 which scans markings on an element (not shown) carried on the shaft of the circular comb roller 1. The control device 25 can expediently contain a controller which adjusts the output drive pulses in such a way that the tear-off cylinders 9 and 10 are each rotated through the required predetermined angles. As a controlled variable, this controller is supplied with output signals from a speed sensor or position sensor 28, which scans markings on an element (not shown) carried on the shaft of the motor 18.

Die Steuereinrichtung 25 und der Verstärker 26 sind von einem Stromversorgungsgerät 29 gespeist.The control device 25 and the amplifier 26 are fed by a power supply device 29.

Eine Kämmaschine enthält in der Regel mehrere in einer Reihe angeordnete Kämmköpfe von der Art des vorstehend beschriebenen. In einer solchen Kämmaschine ist es zweckmässig, die Abreisszylinder 9 und 10 der verschiedenen Kämmköpfe - oder wenigstens einiger derselben - durch jeweils eine gemeinsame Welle 30 bzw. 31 miteinander zu kuppeln und mit dem Elektromotor 18 über das Getriebe 19, 20, 21, 22, 23, 24 gemeinsam anzutreiben, wie in Fig. 2 schematisch dargestellt.A combing machine usually contains several combing heads arranged in a row of the type described above. In such a combing machine, it is expedient to couple the tear-off cylinders 9 and 10 of the various combing heads - or at least some of them - with a common shaft 30 and 31, respectively, and with the electric motor 18 via the gear 19, 20, 21, 22, 23, 24 to drive together, as shown schematically in FIG. 2.

In einer Variante ist es auch möglich, für die beiden Drehrichtungen der Abreisszylinder 9 und 10 anstelle eines umsteuerbaren Motors 18 zwei getrennte Elektromotoren zu verwenden. Die Fig. 3 zeigt ähnlich wie Fig. 2 eine schematische Teildraufsicht auf die Abreisszylinder 9 und 10 mehrerer Kämmköpfe einer Kämmaschine. An einem Ende der gemeinsamen Wellen 30 bzw. 31 der Abreisszylinder 9 und 10 ist ein Elektromotor 18′ angeordnet, der die Abreisszylinder 9 und 10 über das Getriebe 19, 20, 21, 22, 23, 24 rückwärts dreht. In dem Getriebe ist zwischen den Zahnrädern 21 und 24 zusätzliche eine Kupplung 32 angeordnet. Am anderen Ende der Wellen 30 und 31 ist ein zweiter Elektromotor 18'' zum Vorwärtsdrehen der Abreisszylindere 9 und 10 angeordnet. Im Getriebe 19, 20, 21, 22, 23, 24 zwischen dem Motor 18˝ und den Abreisszylindern 9 und 10 ist wieder die Kupplung 32 angeordnet. Die Steuereinrichtung 25 führt den Elektromotoren 18′ und 18˝ Antriebsimpulse zu und/oder betätigt die Kupplungen 32, um die Abreisszylinder 9 und 10 während jedes Kammspiel durch die erforderlichen Winkel rückwärts und dann vorwärts zu drehen. Anstelle der Kupplungen 32 könnten auch Freiläufe verwendet werden, und zwar insbesondere entsperrbare Freiläufe, damit jeweils der Motor 18˝ nicht mitgedreht wird, wenn der Motor 18′ die Abreisszylinder 9 und 10 rückwärts dreht, und umgekehrt.In a variant, it is also possible to use two separate electric motors for the two directions of rotation of the tear-off cylinders 9 and 10 instead of a reversible motor 18. 3 shows, similar to FIG. 2, a schematic partial plan view of the tear-off cylinder 9 and 10 of several combing heads of a combing machine. At one end of the common shafts 30 and 31 of the tear-off cylinders 9 and 10, an electric motor 18 'is arranged, which rotates the tear-off cylinders 9 and 10 via the gear 19, 20, 21, 22, 23, 24 backwards. A clutch 32 is additionally arranged in the transmission between the gear wheels 21 and 24. At the other end of the shafts 30 and 31, a second electric motor 18 ″ is arranged for the forward rotation of the tear-off cylinders 9 and 10. In the transmission 19, 20, 21, 22, 23, 24 between the motor 18˝ and the tear-off cylinders 9 and 10, the clutch 32 is again arranged. The control device 25 leads the electric motors 18 'and 18˝ drive pulses to and / or actuates the clutches 32 in order to rotate the tear-off cylinders 9 and 10 backwards and then forwards through the required angles during each comb play. Instead of the clutches 32, freewheels could also be used, in particular unlockable freewheels, so that the motor 18˝ is not rotated when the motor 18 'rotates the tear-off cylinders 9 and 10 in reverse, and vice versa.

In einer anderen Variante treibt der umsteuerbare Elektromotor 18 (Fig. 1, 2) über das Getriebe 19, 20, 21, 22, 24 - ohne das Zahnrad 23 auf der Welle 31 - nur die Abreisszylinder 9. Die Abreisszylinder 10 werden dann von einem zweiten umsteuerbaren Elektromotor (nicht dargestellt) angetrieben, der am anderen Ende der Wellen 30 und 31 angeordnet ist und über ein Untersetzungsgetriebe (ähnlich dem Getriebe 19, 20, 21, 23, 24) mit der Welle 31 gekuppelt ist. Der Elektromotor 18 und der zweite, nicht dargestellte Elektromotor werden von der Steuereinrichtung 25 mit gleichen, synchronen Antriebsimpulsen gespeist.In another variant, the reversible electric motor 18 (FIGS. 1, 2) drives only the tear-off cylinders 9 via the gear 19, 20, 21, 22, 24 - without the gearwheel 23 on the shaft 31 - the tear-off cylinders 10 then become one second reversible electric motor (not shown) driven, which is arranged at the other end of the shafts 30 and 31 and is coupled to the shaft 31 via a reduction gear (similar to the gear 19, 20, 21, 23, 24). The electric motor 18 and the second electric motor, not shown, are fed by the control device 25 with the same, synchronous drive pulses.

Claims (13)

  1. A combing machine with at least one combing head, comprising a driven comb cylinder (1) continuously rotatable by a drive motor, a reciprocatable nipper arrangement (3, 4) and at least one detaching cylinder (9) rotatable in a pilgrim-step movement, characterized in that at least one electromotor (18; 18', 18'') is arranged for rotating the detaching cylinder (9) with the pilgrim-step movement.
  2. A combing machine as claimed in claim 1, characterized in that the electromotor (18; 18', 18'') is coupled with the detaching cylinder (9) through a step-down gear (19, 20, 21, 22, 23, 24).
  3. A combing machine as claimed in claim 1 or 2, characterized in that the electromotor (18; 18', 18'') is a brushless D.C. motor.
  4. A combing machine as claimed in claim 1 or 2, characterized in that the electromotor (18; 18', 18'') is an asynchronous motor.
  5. A combing machine as claimed in one of the claims 1 to 4, characterized by a control device (25) for feeding the electromotor (18; 18', 18'') with drive pulses which are synchronized with the rotation of the comb cylinder (1).
  6. A combing machine as claimed in claim 5, characterized in that the control device (25) comprises a control means which is supplied with the rotational angle of the electromotor (18; 18', 18'') as a control value during each forward movement and/or return movement of the detaching cylinder (9).
  7. A combing machine as claimed in one of the claims 1 to 6, in which the combing head comprises two detaching rollers (9, 10), characterized in that the electromotor (18; 18', 18'') rotates both detaching cylinders (9, 10) synchronously.
  8. A combing machine as claimed in one of the claims 1 to 6, in which the combing head comprises two detaching cylinders (9, 10), characterized in that the electromotor (18) is coupled with a detaching cylinder (9) and that a second electromotor is coupled with the second detaching cylinder (10).
  9. A combing machine as claimed in one of the claims 1 to 8, with several combing heads, characterized in that the detaching cylinders (9) of at least some of the combing heads, preferably all combing heads, are mechanically coupled with one another and are rotated jointly by the electromotor (18; 18', 18'').
  10. A combing machine as claimed in one of the claims 1 to 9, characterized in that the electromotor (18) is reversable so as to rotate the detaching cylinder (9) both forward and backward in the pilgrim-step movement.
  11. A combing machine as claimed in one of the claims 1 to 9, characterized in that the electromotor (18') rotates the detaching cylinder (9) via a coupling (32) only in one direction and that a second electromotor (18'') and a second coupling (32) are arranged for rotating the detaching cylinder (9) in the opposite direction.
  12. A combing machine as claimed in one of the claims 1 to 9, characterized in that the electromotor (18') rotates the detaching cylinder (9) via a free-wheel only in one direction and that a second electromotor (18'') and a second free-wheel (32) are arranged for rotating the detaching cylinder (9) in the opposite direction.
  13. A combing machine as claimed in claim 12, characterized in that the two free-wheels (32) are unlockable free-wheels.
EP89123089A 1988-12-23 1989-12-14 Combing machine Expired - Lifetime EP0374723B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4784/88 1988-12-23
CH4784/88A CH676721A5 (en) 1988-12-23 1988-12-23

Publications (3)

Publication Number Publication Date
EP0374723A2 EP0374723A2 (en) 1990-06-27
EP0374723A3 EP0374723A3 (en) 1992-01-08
EP0374723B1 true EP0374723B1 (en) 1994-09-21

Family

ID=4282485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123089A Expired - Lifetime EP0374723B1 (en) 1988-12-23 1989-12-14 Combing machine

Country Status (7)

Country Link
US (1) US5022122A (en)
EP (1) EP0374723B1 (en)
JP (1) JP2834812B2 (en)
CH (1) CH676721A5 (en)
DD (1) DD286377A5 (en)
DE (1) DE58908407D1 (en)
ES (1) ES2063804T3 (en)

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DE19527950B4 (en) * 1995-08-01 2005-11-10 Maschinenfabrik Rieter Ag Combing machine with at least one combing head
DE19641979B4 (en) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Method and device for controlling the drive movements of a combing machine, in particular a cotton combing machine
CN101003921B (en) * 2006-01-17 2011-04-20 里特机械公司 Device for regulating machine for processing spinning material
DE102012011030A1 (en) * 2012-06-05 2013-12-05 Trützschler GmbH & Co Kommanditgesellschaft Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen
WO2017006196A1 (en) 2015-07-03 2017-01-12 Maschinenfabrik Rieter Ag Individual drive for detaching rollers of a combing machine
EP4212656A1 (en) 2022-01-18 2023-07-19 Trützschler Group SE Method for operating a combing machine

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IT1280137B1 (en) * 1995-02-28 1998-01-05 Vouk Macchine Tessili Spa ELECTRONICALLY CONTROLLED COMBING MACHINE WITH IMPROVED SYSTEM FOR DETECTION OF PULSES FROM ENCODERS
DE69514806T2 (en) * 1995-11-02 2000-08-03 Vouk S P A Officine Meccanotes Device for a back and forth drive of tear-off cylinders of a combing machine
CN1090255C (en) * 1996-03-29 2002-09-04 里特机械公司 Detaching and piecing apparatus in combing machine
US5950282A (en) * 1998-10-05 1999-09-14 Pinto; Akiva Textile chute feed
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ITMI20040021A1 (en) * 2004-01-12 2004-04-12 Aldo Ceriani COMBING MACHINE FOR COTTON AND SIMILAR WITH PERFECTED TAPE FORMATION DEVICE
CN1327060C (en) * 2004-10-11 2007-07-18 何银康 Computer digital control combing machine
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JP5782683B2 (en) 2010-06-16 2015-09-24 株式会社豊田自動織機 Comb
JP5924855B2 (en) * 2010-06-16 2016-05-25 株式会社豊田自動織機 Comb
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US8870104B2 (en) 2011-01-13 2014-10-28 Frank Levy Method for separating carpet fibers
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527950B4 (en) * 1995-08-01 2005-11-10 Maschinenfabrik Rieter Ag Combing machine with at least one combing head
DE19641979B4 (en) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Method and device for controlling the drive movements of a combing machine, in particular a cotton combing machine
CN101003921B (en) * 2006-01-17 2011-04-20 里特机械公司 Device for regulating machine for processing spinning material
DE102012011030A1 (en) * 2012-06-05 2013-12-05 Trützschler GmbH & Co Kommanditgesellschaft Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen
WO2017006196A1 (en) 2015-07-03 2017-01-12 Maschinenfabrik Rieter Ag Individual drive for detaching rollers of a combing machine
EP4212656A1 (en) 2022-01-18 2023-07-19 Trützschler Group SE Method for operating a combing machine
DE102022101037A1 (en) 2022-01-18 2023-07-20 Trützschler Group SE Method of operating a combing machine

Also Published As

Publication number Publication date
EP0374723A2 (en) 1990-06-27
JPH02216225A (en) 1990-08-29
US5022122A (en) 1991-06-11
EP0374723A3 (en) 1992-01-08
DD286377A5 (en) 1991-01-24
CH676721A5 (en) 1991-02-28
JP2834812B2 (en) 1998-12-14
ES2063804T3 (en) 1995-01-16
DE58908407D1 (en) 1994-10-27

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