EP2743223B1 - Thread guide unit for a textile machine - Google Patents

Thread guide unit for a textile machine Download PDF

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Publication number
EP2743223B1
EP2743223B1 EP20120197512 EP12197512A EP2743223B1 EP 2743223 B1 EP2743223 B1 EP 2743223B1 EP 20120197512 EP20120197512 EP 20120197512 EP 12197512 A EP12197512 A EP 12197512A EP 2743223 B1 EP2743223 B1 EP 2743223B1
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EP
European Patent Office
Prior art keywords
guide unit
belt
yarn guide
pulleys
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20120197512
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German (de)
French (fr)
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EP2743223A1 (en
Inventor
Erwin Leu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SSM Schaerer Schweiter Mettler AG
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SSM Schaerer Schweiter Mettler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SSM Schaerer Schweiter Mettler AG filed Critical SSM Schaerer Schweiter Mettler AG
Priority to EP20120197512 priority Critical patent/EP2743223B1/en
Priority to CN201380070601.3A priority patent/CN104936877B/en
Priority to PCT/EP2013/074725 priority patent/WO2014095263A1/en
Priority to TW102146738A priority patent/TWI519690B/en
Publication of EP2743223A1 publication Critical patent/EP2743223A1/en
Application granted granted Critical
Publication of EP2743223B1 publication Critical patent/EP2743223B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a yarn guide unit for a textile machine.
  • yarn guide units are used to move a yarn during a winding or rewinding of the thread in rapid succession back and forth.
  • thread guide units are often used with a belt drive.
  • the belt drive in this case has a drive belt to which the yarn guide can be attached directly.
  • the drive belt is performed in the structurally simplest case to a first and a second pulley.
  • one of the two pulleys is designed as a drive pulley.
  • the traversing movement of the thread guide is generated by a correspondingly rapid sequence of changes in direction of a rotational movement of the drive pulley or of a drive pulley associated drive motor.
  • Such belt drives are characterized not least because of their structurally simple structure by a long life and low maintenance. This is essential for a thread laying in textile machines, such as winding or texturing machines.
  • An aforementioned thread guide unit for a textile machine is for example from the EP 1 209 114 A1 known.
  • the yarn guide unit must have the smallest possible moving mass in view of the required high-frequency traversing movement of the yarn guide. This restriction requires that as narrow as possible and thus light transmission belts are used.
  • narrow drive belts are usually used together with pulleys, which are provided on both sides with a flanged wheel.
  • the flanges are used to prevent unwanted migration of the drive belt on the pulley.
  • One of the two flanges can be releasably attached to the pulley to further facilitate the installation of the drive belt.
  • pulleys are significantly more expensive to manufacture than pulleys with only one flanged wheel, in which, however, in addition so-called belt guide plates must be used to secure the drive belt against slipping off the pulleys.
  • the Riemenleitbleche must be adjusted individually, which unduly increases the assembly and maintenance of the thread guide unit practice.
  • the invention is therefore based on the object to provide a thread guide unit, which allows the use of a narrow drive belt and which is doing cheaper to manufacture and has only a small installation and maintenance.
  • a very narrow drive belt can be used in conjunction with pulleys, each having only one flanged wheel.
  • pulleys are, for example by injection molding, inexpensive to manufacture.
  • Thread guide units available on the market usually have belt drives, in which the axes of rotation of the two pulleys are aligned parallel to one another and perpendicular to the belt plane spanned by the drive belt (ie, at least two strands).
  • the two pulleys of the yarn guide unit according to the invention are arranged with their axis of rotation tilted in opposite directions relative to the solder of the aforementioned belt plane.
  • the axes of rotation of the two pulleys thus intersect at a hypothetical point of intersection, which is spaced in the vertical direction on the side of the flange of both pulleys from the belt plane.
  • the running drive belt can thereby be guided with one of its sides against the pulleys of the pulleys, ie, pulled in the direction of and against the flanges of the two pulleys.
  • a slipping of the drive belt of the pulleys can be actively counteracted thereby.
  • the thread guide unit according to the invention can also be realized with an overall reduced moving mass.
  • the yarn guide unit can thereby have a reduced mass inertia by 15-20%, which allows even in the case of high-frequency and highest-frequency traversing movements of the yarn guide a further improved controllability of the yarn guide unit.
  • pulleys are also understood as (deflection) rollers or (deflection) wheels which are designed for the use of drive belts.
  • the first pulley and the second pulley can be tilted with different degrees of rotation with their axes of rotation relative to the perpendicular of the belt plane.
  • the drive pulley of the yarn guide unit often has a larger diameter than the other of the two pulleys.
  • the driven by the drive motor pulley is arranged with its axis of rotation relative to the solder less tilted than the other of the two pulleys.
  • the axis of rotation of the driven by the drive motor pulley, ie, the drive pulley, according to the invention with the solder preferably a first angle ⁇ 1 with 0.25 ⁇ ⁇ 1 ⁇ 0.5 °.
  • the first angle ⁇ 1 is about 0.38 ° in a preferred embodiment of the invention.
  • the axis of rotation of the respective other of the two pulleys includes with the solder according to the invention a second angle ( ⁇ 2) with 0.6 ° ⁇ ⁇ 2 ⁇ 0.85 °, in particular approximately 0.75 °. This allows a sufficiently secure guidance of the drive belt on the pulleys at the same time minimized wear of the Drive belt, for example, by its friction on the flanges, be realized.
  • one of the two pulleys is designed as a clamping disk for tensioning the drive belt.
  • the assembly of the drive belt on the two pulleys can be facilitated.
  • the drive belt can thereby be biased in an optimal manner for the operation of the belt drive.
  • a clamping pulley pulley designed as a clamping pulley pulley is provided with an elastically deformable biasing member by which the clamping disk in a tensioning the tensioning belt clamping position is transferred or held.
  • this allows a belt tension of the drive belt to be set or limited in a simple manner to a predetermined value. An excessive stress on the drive belt can be reliably counteracted.
  • the assembly of the drive belt on the pulleys can be facilitated thereby.
  • the trained as a clamping pulley pulley can be arranged in particular slidably on a bearing element of the yarn guide unit via a slide.
  • the aforementioned biasing member preferably engages the carriage.
  • the carriage can be pressed for easy installation of the drive belt in the direction of the other pulley and the belt so simplified around the two pulleys.
  • the carriage on locking means by means of which the carriage can be fixed to the bearing element.
  • the tensioning disk can be fixed in position in its tensioning position on the bearing element (and relative to the other belt pulley) that is exciting to the drive belt in a simple manner.
  • the drive belt may be according to the invention, in particular a flat belt or a toothed belt.
  • the drive belt has a width which is preferably uniform over its longitudinal extent, from 3 mm to approximately 10 mm, preferably approximately 3.5 mm.
  • the two pulleys are each provided with only one flange for lateral guidance of the drive belt, so that the yarn guide unit can be realized with an overall reduced inertia.
  • the two pulleys are arranged with their axes of rotation tilted in opposite directions relative to the Lot of a belt plane spanned by the drive belt, that the drive belt is guided during operation of the yarn guide unit with its one side edge against the flanges of the two pulleys.
  • the two axes of rotation of the pulleys thus close with the belt plane an angle of less than 90 °.
  • Fig. 1 shows a textile machine 10 with a yarn guide unit 12.
  • the textile machine 10 is shown for illustrative purposes only schematically and can be formed for example as a yarn winding machine or as a texturing machine.
  • the thread guide unit 12 has a belt drive 14 with a drive belt 16 which wraps around a first and a second belt pulley 18, 20 .
  • the drive belt 16 is embodied here as an endless belt.
  • the drive belt 16 spans with his two strands in Fig. 1 with a petted line clarified the belt plane denoted by E.
  • E On the drive belt 16, a yarn guide 22 for guiding a yarn 24 is attached.
  • the two pulleys 18, 20 are rotatably mounted about their respective axis of rotation 18a, 20a relative to a bearing element 26 of the yarn guide unit 12 in opposite directions of rotation 28a, 28b .
  • the bearing element 26 is exemplified here as a bearing plate.
  • the first pulley 18 is driven by a motor and serves as a drive pulley of the drive belt 16.
  • the second pulley 20 is designed as a clamping disk and mounted on a carriage 30 .
  • the carriage 30 is displaceably mounted on the bearing element 26 along a movement axis 32 which connects the two axes of rotation of the belt pulleys.
  • an elastically deformable biasing member 34 which in the present example is formed as a compression spring.
  • the compression spring is supported on the bearing element 26.
  • the biasing member 34 exerts on the carriage a defined biasing force 36 , which in the direction of the movement axis 32 of the first pulley 18 points away.
  • the biasing force 36 By the biasing force 36, the second pulley 20 in a drive belt 16 exciting clamping position can be transferred.
  • the carriage locking means 38 for releasably locking (fixing) of the carriage 30 on the bearing element 26 on.
  • the trained as a clamping pulley second pulley 20 is characterized in its clamping position on the bearing element 26 can be fixed.
  • Fig. 2 shows the thread guide unit 12 Fig. 1 in a side view.
  • the thread guide ( Fig. 1 ) is not shown.
  • the first pulley 18 is mounted on the drive shaft 40 of a drive motor 42 whose functions (direction of rotation / rotational speed / acceleration) can be controlled and / or regulated by means of a controller not shown in detail.
  • the drive motor 42 is designed as an electric motor and arranged substantially below the bearing element 26.
  • the two pulleys 18, 20 each have only one flange 44 for lateral guidance of the drive belt 16.
  • the flanged wheels 44 form on the inside start-up or guide surfaces 46 for the drive belt 16 in order to prevent lateral migration of the (running) drive belt 16 from the pulleys 18, 20.
  • the first pulley 18 is tilted with its axis of rotation 18a at a first angle ⁇ 1 relative to the Lot 48 of the belt 16 spanned by the belt 16 belt plane.
  • the second pulley 20 is arranged with its axis of rotation 20a tilted in opposite directions to the axis of rotation 18a of the first pulley 18 and includes an angle ⁇ 2 with the solder.
  • the first angle is presently about 0.38 ° and the second angle about 0.75 °.
  • the two axes of rotation 18a, 20a are thus arranged in a direction perpendicular to the belt plane perpendicular plumb plane (not shown) and intersect at an unspecified reproduced (hypothetical) point of intersection - spaced from the belt plane E - on the side of the flange pulleys 44 of the pulleys 18, 20 is arranged.
  • the (driving) belt 16 which moves back and forth during operation of the yarn guide unit is provided by the tilted arrangement of the two axes of rotation 18a, 20a with its two flanges 44 of the two pulleys 18, 20 assigning side edge 16a guided against the flanges 44 and secured in this way against unwanted slippage of the / the pulleys 18, 20.
  • the two pulleys 18, 20 circumferentially recesses 50 , which engages in the present case designed as a toothed belt 16 drive belt.
  • the drive belt 16 may alternatively be formed as a flat belt.

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Description

Die Erfindung betrifft eine Fadenführereinheit für eine Textilmaschine.The invention relates to a yarn guide unit for a textile machine.

In der Praxis werden bei Textilmaschinen seit langem Fadenführereinheiten eingesetzt, um einen Faden während eines Auf- oder Umspulens des Fadens in schneller Folge hin- und her zu bewegen. Für derartige Changierbewegungen werden häufig Fadenführereinheiten mit einem Riemenantrieb eingesetzt. Der Riemenantrieb weist dabei einen Treibriemen auf, an dem der Fadenführer direkt befestigt sein kann. Der Treibriemen ist im konstruktiv einfachsten Fall um eine erste und eine zweite Riemenscheibe geführt. Üblicher Weise ist eine der beiden Riemenscheiben als Antriebsriemenscheibe ausgebildet. Die Changierbewegung des Fadenführers wird durch eine entsprechend schnelle Abfolge von Richtungswechseln einer Drehbewegung der Antriebsriemenscheibe bzw. eines der Antriebsriemenscheibe zugeordneten Antriebsmotors erzeugt. Derartige Riemenantriebe zeichnen sich nicht zuletzt aufgrund ihres konstruktiv einfachen Aufbaus durch eine lange Lebensdauer und einen geringen Wartungsaufwand aus. Dies ist für eine Fadenverlegung bei Textilmaschinen, wie beispielsweise Spul- oder auch Texturiermaschinen, wesentlich.In practice, in textile machines for a long time yarn guide units are used to move a yarn during a winding or rewinding of the thread in rapid succession back and forth. For such traversing movements thread guide units are often used with a belt drive. The belt drive in this case has a drive belt to which the yarn guide can be attached directly. The drive belt is performed in the structurally simplest case to a first and a second pulley. Usually, one of the two pulleys is designed as a drive pulley. The traversing movement of the thread guide is generated by a correspondingly rapid sequence of changes in direction of a rotational movement of the drive pulley or of a drive pulley associated drive motor. Such belt drives are characterized not least because of their structurally simple structure by a long life and low maintenance. This is essential for a thread laying in textile machines, such as winding or texturing machines.

Eine vorgenannte Fadenführereinheit für eine Textilmaschine ist beispielsweise aus der EP 1 209 114 A1 bekannt geworden.An aforementioned thread guide unit for a textile machine is for example from the EP 1 209 114 A1 known.

Die Fadenführereinheit muss angesichts der erforderlichen hochfrequenten Changierbewegung des Fadenführers eine möglichst geringe bewegte Masse aufweisen. Diese Restriktion bedingt, dass möglichst schmale und damit leichte Treibriemen zum Einsatz kommen.The yarn guide unit must have the smallest possible moving mass in view of the required high-frequency traversing movement of the yarn guide. This restriction requires that as narrow as possible and thus light transmission belts are used.

In der Praxis werden schmale Treibriemen in der Regel gemeinsam mit Riemenscheiben eingesetzt, die zu beiden Seiten mit einer Bordscheibe versehen sind. Die Bordscheiben dienen dazu, ein unerwünschtes Abwandern des Treibriemens auf der Riemenscheibe zu verhindern. Bei der Montage des Treibriemens wir dieser üblicher Weise um die beiden Riemenscheiben geführt und nachträglich mittels einer Spannscheibe bzw. einer Spannrolle gespannt. Eine der beiden Bordscheiben kann an der Riemenscheibe lösbar befestigt sein, um die Montage des Treibriemens weiter zu erleichtern.In practice, narrow drive belts are usually used together with pulleys, which are provided on both sides with a flanged wheel. The flanges are used to prevent unwanted migration of the drive belt on the pulley. During assembly of the drive belt, we routed this customary manner around the two pulleys and subsequently tensioned by means of a tensioning pulley or a tensioning pulley. One of the two flanges can be releasably attached to the pulley to further facilitate the installation of the drive belt.

Derartige Riemenscheiben sind in ihrer Herstellung deutlich teurer als Riemenscheiben mit nur einer Bordscheibe, bei denen allerdings zusätzlich sogenannte Riemenleitbleche eingesetzt werden müssen, um den Treibriemen gegenüber einem Abrutschen von den Riemenscheiben zu sichern. Die Riemenleitbleche müssen einzeln justiert werden, was den Montage- und Wartungsaufwand der Fadenführereinheit der Praxis ungebührlich erhöht.Such pulleys are significantly more expensive to manufacture than pulleys with only one flanged wheel, in which, however, in addition so-called belt guide plates must be used to secure the drive belt against slipping off the pulleys. The Riemenleitbleche must be adjusted individually, which unduly increases the assembly and maintenance of the thread guide unit practice.

Die Erfindung liegt daher die Aufgabe zu Grunde, eine Fadenführereinheit anzugeben, die den Einsatz eines schmalen Treibriemens erlaubt und die dabei kostengünstiger zu fertigen ist sowie einen nur geringen Montage- und Wartungsaufwand aufweist.The invention is therefore based on the object to provide a thread guide unit, which allows the use of a narrow drive belt and which is doing cheaper to manufacture and has only a small installation and maintenance.

Die die Fadenführereinheit betreffende Aufgabe wird durch eine Fadenführereinheit mit den in Patentanspruch 1 angegebenen Merkmalen gelöst.The task concerning the thread guide unit is achieved by a thread guide unit having the features specified in patent claim 1.

Bei der erfindungsgemäßen Fadenführereinheit kann auch ein sehr schmaler Treibriemen im Verbund mit Riemenscheiben eingesetzt werden, die jeweils nur eine Bordscheibe aufweisen. Derartige Riemenscheiben sind, beispielsweise im Spritzgussverfahren, kostengünstig zu fertigen. Am Markt verfügbare Fadenführereinheiten weisen üblicher Weise Riemenantriebe auf, bei denen die Drehachsen der beiden Riemenscheiben parallel zueinander ausgerichtet und lotrecht zu der durch den Treibriemen (d.h., dessen zumindest zwei Trums) aufgespannten Riemenebene verlaufend angeordnet sind. Die beiden Riemenscheiben der erfindungsgemäßen Fadenführereinheit sind demgegenüber mit ihrer Drehachse relativ zum Lot der vorgenannten Riemenebene gegensinnig verkippt angeordnet. Die Drehachsen der beiden Riemenscheiben schneiden sich somit an einem hypothetischen Schnittpunkt, der in Lotrichtung auf der Seite der Bordscheiben beider Riemenscheiben von der Riemenebene beabstandet angeordnet ist. Insgesamt kann der laufende Treibriemen dadurch mit einer seiner Seiten gegen die Bordscheiben der Riemenscheiben geführt, d.h., in Richtung auf und gegen die Bordscheiben der beiden Riemenscheiben gezogen, werden. Einem Abrutschen des Treibriemens von den Riemenscheiben kann dadurch aktiv entgegengewirkt werden. Aufwendig zu justierende und daher kostenintensive (separate) Riemenleitbleche zum Führen des Treibriemens erübrigen sich. Dies ist insgesamt für den Montage- und Wartungsaufwand der Fadenführereinheit günstig. Aufgrund der mit nur einer Bordscheibe versehenen Riemenscheiben kann die erfindungsgemäße Fadenführereinheit darüber hinaus mit einer insgesamt verringerten bewegten Masse realisiert werden. Die Fadenführereinheit kann dadurch eine um 15-20% verringerte Massenträgheit aufweisen, wodurch selbst bei hochfrequenten und höchstfrequenten Changierbewegungen des Fadenführers eine nochmals verbesserte Steuerbarkeit der Fadenführereinheit ermöglicht ist. In der vorliegenden Patentanmeldung werden unter Riemenscheiben auch (Umlenk-) Rollen bzw. (Umlenk-) Räder verstanden, die auf den Einsatz von Treibriemen ausgelegt sind.In the yarn guide unit according to the invention also a very narrow drive belt can be used in conjunction with pulleys, each having only one flanged wheel. Such pulleys are, for example by injection molding, inexpensive to manufacture. Thread guide units available on the market usually have belt drives, in which the axes of rotation of the two pulleys are aligned parallel to one another and perpendicular to the belt plane spanned by the drive belt (ie, at least two strands). In contrast, the two pulleys of the yarn guide unit according to the invention are arranged with their axis of rotation tilted in opposite directions relative to the solder of the aforementioned belt plane. The axes of rotation of the two pulleys thus intersect at a hypothetical point of intersection, which is spaced in the vertical direction on the side of the flange of both pulleys from the belt plane. Overall, the running drive belt can thereby be guided with one of its sides against the pulleys of the pulleys, ie, pulled in the direction of and against the flanges of the two pulleys. A slipping of the drive belt of the pulleys can be actively counteracted thereby. Elaborately to be adjusted and therefore costly (separate) Riemenleitbleche for driving the belt unnecessary. This is favorable overall for the assembly and maintenance of the thread guide unit. Due to the provided with only one flanged pulleys, the thread guide unit according to the invention can also be realized with an overall reduced moving mass. The yarn guide unit can thereby have a reduced mass inertia by 15-20%, which allows even in the case of high-frequency and highest-frequency traversing movements of the yarn guide a further improved controllability of the yarn guide unit. In the present patent application pulleys are also understood as (deflection) rollers or (deflection) wheels which are designed for the use of drive belts.

Erfindungsgemäß können die erste Riemenscheibe und die zweite Riemenscheibe mit Ihren Drehachsen gegenüber dem Lot der Riemenebene unterschiedlich stark verkippt angeordnet sein. In der Praxis weist die Antriebsriemenscheibe der Fadenführereinheit häufig einen größeren Durchmesser auf, als die andere der beiden Riemenscheiben. In diesem Fall hat es sich als vorteilhaft erwiesen, wenn die vom Antriebsmotor angetriebene Riemenscheibe mit ihrer Drehachse gegenüber dem Lot weniger stark verkippt angeordnet ist, als die jeweils andere der beiden Riemenscheiben. Durch einen auf den jeweiligen Durchmesser der Riemenscheibe ausgerichteten (Kipp-)Winkel der Drehachse gegenüber dem Lot der Riemenebene kann einem Abrutschen (Ablösen) des Treibriemens von der als Antriebsriemenscheibe ausgebildeten ersten Riemenscheibe besonders zuverlässig entgegengewirkt werden.According to the invention, the first pulley and the second pulley can be tilted with different degrees of rotation with their axes of rotation relative to the perpendicular of the belt plane. In practice, the drive pulley of the yarn guide unit often has a larger diameter than the other of the two pulleys. In this case, it has proven to be advantageous if the driven by the drive motor pulley is arranged with its axis of rotation relative to the solder less tilted than the other of the two pulleys. By a (tilting) angle of the rotation axis relative to the perpendicular of the belt plane aligned with the respective diameter of the belt pulley, slippage (detachment) of the drive belt from the first belt pulley designed as a drive belt pulley can be counteracted particularly reliably.

Die Drehachse der vom Antriebsmotor angetriebenen Riemenscheibe, d.h., der Antriebsriemenscheibe, schließt nach der Erfindung mit dem Lot bevorzugt einen ersten Winkel α1 mit 0,25 ≤ α1 ≤ 0,5 ° ein. Der erste Winkel α1 beträgt nach einer bevorzugten Ausführungsform der Erfindung ungefähr 0,38°. Die Drehachse des jeweils anderen der beiden Riemenscheiben schließt mit dem Lot erfindungsgemäß einen zweiten Winkel (α2) mit 0,6° ≤ α2 ≤ 0,85°, insbesondere ungefähr 0,75°, ein. Dadurch kann eine hinreichend sichere Führung des Treibriemens auf den Riemenscheiben bei zugleich minimiertem Verschleiß des Treibriemens, beispielsweise durch dessen Reibung an den Bordscheiben, realisiert werden.The axis of rotation of the driven by the drive motor pulley, ie, the drive pulley, according to the invention with the solder preferably a first angle α1 with 0.25 ≤ α1 ≤ 0.5 °. The first angle α1 is about 0.38 ° in a preferred embodiment of the invention. The axis of rotation of the respective other of the two pulleys includes with the solder according to the invention a second angle (α2) with 0.6 ° ≤ α2 ≤ 0.85 °, in particular approximately 0.75 °. This allows a sufficiently secure guidance of the drive belt on the pulleys at the same time minimized wear of the Drive belt, for example, by its friction on the flanges, be realized.

Besonders bevorzugt ist eine der beiden Riemenscheiben als Spannscheibe zum Spannen des Treibriemens ausgebildet. Dadurch kann einerseits die Montage des Treibriemens auf den beiden Riemenscheiben erleichtert werden. Andererseits kann der Treibriemen dadurch in einer für den Betrieb des Riemenantriebs optimalen Weise vorgespannt werden.Particularly preferably, one of the two pulleys is designed as a clamping disk for tensioning the drive belt. As a result, on the one hand, the assembly of the drive belt on the two pulleys can be facilitated. On the other hand, the drive belt can thereby be biased in an optimal manner for the operation of the belt drive.

Nach einer besonders bevorzugten Weiterbildung der Erfindung ist die als Spannscheibe ausgebildete Riemenscheibe mit einem elastisch verformbaren Vorspannelement versehen, durch das die Spannscheibe in einer den Treibriemen spannenden Spannstellung überführbar bzw. gehalten ist. Einerseits kann dadurch eine Riemenspannung des Treibriemens auf einfache Weise auf einen vorgegebenen Wert eingestellt bzw. begrenzt werden. Einer übermäßigen Beanspruchung des Treibriemens kann dadurch zuverlässig entgegengewirkt werden. Andererseits kann dadurch die Montage des Treibriemens auf den Riemenscheiben erleichtert werden.According to a particularly preferred embodiment of the invention, designed as a clamping pulley pulley is provided with an elastically deformable biasing member by which the clamping disk in a tensioning the tensioning belt clamping position is transferred or held. On the one hand, this allows a belt tension of the drive belt to be set or limited in a simple manner to a predetermined value. An excessive stress on the drive belt can be reliably counteracted. On the other hand, the assembly of the drive belt on the pulleys can be facilitated thereby.

Die als Spannscheibe ausgebildete Riemenscheibe kann insbesondere über einen Schlitten an einem Lagerelement der Fadenführereinheit verschiebbar angeordnet sein. Bei dieser Ausführungsform greift das vorgenannte Vorspannelement vorzugsweise am Schlitten an. Der Schlitten kann zur einfachen Montage des Treibriemens in Richtung auf die jeweils andere Riemenscheibe gedrückt und der Riemen so vereinfacht um die beiden Riemenscheiben geführt werden.The trained as a clamping pulley pulley can be arranged in particular slidably on a bearing element of the yarn guide unit via a slide. In this embodiment, the aforementioned biasing member preferably engages the carriage. The carriage can be pressed for easy installation of the drive belt in the direction of the other pulley and the belt so simplified around the two pulleys.

Nach einer bevorzugten Weiterbildung der Erfindung weist der Schlitten Arretiermittel auf, mittels derer der Schlitten an dem Lagerelement festsetzbar ist. Dadurch kann die Spannscheibe in ihrer den Treibriemen spannenden Spannstellung am Lagerelement (und relativ zur anderen Riemenscheibe) auf einfache Weise lagefixiert werden.According to a preferred embodiment of the invention, the carriage on locking means, by means of which the carriage can be fixed to the bearing element. As a result, the tensioning disk can be fixed in position in its tensioning position on the bearing element (and relative to the other belt pulley) that is exciting to the drive belt in a simple manner.

Der Treibriemen kann nach der Erfindung insbesondere ein Flachriemen oder ein Zahnriemen sein.The drive belt may be according to the invention, in particular a flat belt or a toothed belt.

Der Treibriemen weist eine, über seine Längserstreckung vorzugsweise einheitliche, Breite von 3 mm bis ungefähr 10 mm, bevorzugt von ungefähr 3,5 mm, auf.The drive belt has a width which is preferably uniform over its longitudinal extent, from 3 mm to approximately 10 mm, preferably approximately 3.5 mm.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung ergeben sich aus der Beschreibung, den Ansprüchen und der Zeichnung. Ebenso können die vorstehend genannten und die noch weiter aufgeführten Merkmale je für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden.Further advantages and advantageous embodiments of the subject invention will become apparent from the description, the claims and the drawings. Likewise, the features mentioned above and the features listed further can be used individually or in combination in any combination.

Die Erfindung betrifft eine Fadenführereinheit für eine Textilmaschine umfassend:

  • einen Fadenführer zum Führen eines Fadens; und
  • einen Riemenantrieb
    mit einem Treibriemen, an dem der Fadenführer befestigt ist,
    mit einer ersten und mit einer zweiten Riemenscheibe, um die der Treibriemen geführt ist und
    mit einem steuer- und/oder regelbaren Antriebsmotor zum Antreiben einer beiden Riemenscheiben.
The invention relates to a yarn guide unit for a textile machine comprising:
  • a yarn guide for guiding a yarn; and
  • a belt drive
    with a drive belt to which the thread guide is attached,
    with a first and with a second pulley, around which the drive belt is guided and
    with a controllable and / or controllable drive motor for driving a pair of pulleys.

Die beiden Riemenscheiben sind zur seitlichen Führung des Treibriemens jeweils mit nur einer Bordscheibe versehen, so dass die Fadenführereinheit mit einer insgesamt verringerten Massenträgheit realisiert werden kann. Erfindungsgemäß sind die beiden Riemenscheiben mit ihren Drehachsen relativ zum Lot einer durch den Treibriemen aufgespannten Riemenebene derart gegensinnig verkippt angeordnet, dass der Treibriemen im Betrieb der Fadenführereinheit mit seiner einen Seitenflanke gegen die Bordscheiben der beiden Riemenscheiben geführt ist. Die beiden Drehachsen der Riemenscheiben schließen mit der Riemenebene somit einen Winkel von unter 90° ein.The two pulleys are each provided with only one flange for lateral guidance of the drive belt, so that the yarn guide unit can be realized with an overall reduced inertia. According to the invention, the two pulleys are arranged with their axes of rotation tilted in opposite directions relative to the Lot of a belt plane spanned by the drive belt, that the drive belt is guided during operation of the yarn guide unit with its one side edge against the flanges of the two pulleys. The two axes of rotation of the pulleys thus close with the belt plane an angle of less than 90 °.

Nachfolgend wird die Erfindung anhand eines in der Zeichnung wiedergegebenen Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawing.

Die gezeigte und beschriebene Ausführungsform ist nicht als abschließende Aufzählung zu verstehen, sondern hat vielmehr beispielhaften Charakter für die Schilderung der Erfindung.The embodiment shown and described is not to be understood as an exhaustive list, but rather has exemplary character for the description of the invention.

Die Figuren der Zeichnung zeigen den erfindungsgemäßen Gegenstand stark schematisiert und sind nicht maßstäblich zu verstehen.The figures of the drawing show the subject matter according to the invention in a highly schematized manner and are not to be understood to scale.

In der Zeichnung zeigen:

Fig. 1
eine Textilmaschine mit einer Fadenführereinheit, die einen Riemenantrieb mit einem um zwei Riemenscheiben geführten Treibriemen aufweist, wobei die Riemenscheiben jeweils mit nur einer Bordscheibe versehen sind und gegensinnig verkippte Drehachsen aufweisen, in einer Draufsicht; und
Fig. 2
die Fadenführereinheit aus Fig. 1, in Seitenansicht.
In the drawing show:
Fig. 1
a textile machine with a thread guide unit, which has a belt drive with a drive belt guided around two pulleys, wherein the pulleys are each provided with only one flange and oppositely tilted axes of rotation, in a plan view; and
Fig. 2
the thread guide unit Fig. 1 , in side view.

Fig. 1 zeigt eine Textilmaschine 10 mit einer Fadenführereinheit 12. Die Textilmaschine 10 ist aus Darstellungsgründen nur schematisch wiedergegebenen und kann beispielsweise als Fadenspulmaschine oder auch als Texturiermaschine ausgebildet sein. Die Fadenführereinheit 12 weist einen Riemenantrieb 14 mit einem Treibriemen 16 auf, der eine erste und eine zweite Riemenscheibe 18, 20 umschlingt. Der Treibriemen 16 ist vorliegend als Endlosriemen ausgeführt. Der Treibriemen 16 spannt mit seinen beiden Trums eine in Fig. 1 mit gestreichelter Linie verdeutlichte Riemenebene auf, die mit E bezeichnet ist. An dem Treibriemen 16 ist ein Fadenführer 22 zum Führen eines Fadens 24 befestigt. Die beiden Riemenscheiben 18, 20 sind um ihre jeweilige Drehachse 18a, 20a relativ zu einem Lagerelement 26 der Fadenführereinheit 12 in einander entgegengerichtete Drehrichtungen 28a, 28b verdrehbar gelagert. Das Lagerelement 26 ist vorliegend beispielhaft als Lagerplatte ausgebildet. Die erste Riemenscheibe 18 ist motorisch antreibbar und dient als Antriebsriemenscheibe des Treibriemens 16. Die zweite Riemenscheibe 20 ist als Spannscheibe ausgebildet und an einem Schlitten 30 montiert. Der Schlitten 30 ist entlang einer die beiden Drehachsen der Riemenscheiben verbindenden Bewegungsachse 32 am Lagerelement 26 verschiebbar gelagert. An dem Schlitten 30 greift ein elastisch verformbares Vorspannelement 34 an, das vorliegend beispielhaft als Druckfeder ausgebildet ist. Die Druckfeder ist am Lagerelement 26 abgestützt. Das Vorspannelement 34 übt auf den Schlitten eine definierte Vorspannkraft 36 aus, die in Richtung der Bewegungsachse 32 von der ersten Riemenscheibe 18 weg weist. Durch die Vorspannkraft 36 ist die zweite Riemenscheibe 20 in eine den Treibriemen 16 spannende Spannstellung überführbar. Wie aus Fig. 1 hervorgeht, weist der Schlitten Arretiermittel 38 zum lösbaren Arretieren (Festlegen) des Schlittens 30 am Lagerelement 26 auf. Die als Spannscheibe ausgebildete zweite Riemenscheibe 20 ist dadurch in ihrer Spannstellung am Lagerelement 26 festlegbar. Fig. 1 shows a textile machine 10 with a yarn guide unit 12. The textile machine 10 is shown for illustrative purposes only schematically and can be formed for example as a yarn winding machine or as a texturing machine. The thread guide unit 12 has a belt drive 14 with a drive belt 16 which wraps around a first and a second belt pulley 18, 20 . The drive belt 16 is embodied here as an endless belt. The drive belt 16 spans with his two strands in Fig. 1 with a petted line clarified the belt plane denoted by E. On the drive belt 16, a yarn guide 22 for guiding a yarn 24 is attached. The two pulleys 18, 20 are rotatably mounted about their respective axis of rotation 18a, 20a relative to a bearing element 26 of the yarn guide unit 12 in opposite directions of rotation 28a, 28b . The bearing element 26 is exemplified here as a bearing plate. The first pulley 18 is driven by a motor and serves as a drive pulley of the drive belt 16. The second pulley 20 is designed as a clamping disk and mounted on a carriage 30 . The carriage 30 is displaceably mounted on the bearing element 26 along a movement axis 32 which connects the two axes of rotation of the belt pulleys. On the carriage 30 engages an elastically deformable biasing member 34 , which in the present example is formed as a compression spring. The compression spring is supported on the bearing element 26. The biasing member 34 exerts on the carriage a defined biasing force 36 , which in the direction of the movement axis 32 of the first pulley 18 points away. By the biasing force 36, the second pulley 20 in a drive belt 16 exciting clamping position can be transferred. How out Fig. 1 shows, the carriage locking means 38 for releasably locking (fixing) of the carriage 30 on the bearing element 26 on. The trained as a clamping pulley second pulley 20 is characterized in its clamping position on the bearing element 26 can be fixed.

Fig. 2 zeigt die Fadenführereinheit 12 aus Fig. 1 in einer Seitenansicht. Der Fadenführer (Fig. 1) ist nicht gezeigt. Die erste Riemenscheibe 18 ist auf der Antriebswelle 40 eines Antriebsmotors 42 befestigt, dessen Funktionen (Drehrichtung/Drehgeschwindigkeit/Beschleunigung) mittels einer nicht näher wiedergegebenen Steuereinrichtung steuer- und/oder regelbar ist. Der Antriebsmotor 42 ist als Elektromotor ausgebildet und im Wesentlichen unterhalb des Lagerelements 26 angeordnet. Die beiden Riemenscheiben 18, 20 weisen jeweils nur eine Bordscheibe 44 zur seitlichen Führung des Treibriemens 16 auf. Die Bordscheiben 44 bilden innenseitig Anlauf- bzw. Führungsflächen 46 für den Treibriemen 16 aus, um ein seitliches Abwandern des (laufenden) Treibriemens 16 von den Riemenscheiben 18, 20 zu vermeiden. Wie aus Fig. 2 hervorgeht, ist die erste Riemenscheibe 18 mit ihrer Drehachse 18a unter einem ersten Winkel α1 relativ zum Lot 48 der durch den Treibriemen 16 aufgespannten Riemenebene E verkippt angeordnet. Fig. 2 shows the thread guide unit 12 Fig. 1 in a side view. The thread guide ( Fig. 1 ) is not shown. The first pulley 18 is mounted on the drive shaft 40 of a drive motor 42 whose functions (direction of rotation / rotational speed / acceleration) can be controlled and / or regulated by means of a controller not shown in detail. The drive motor 42 is designed as an electric motor and arranged substantially below the bearing element 26. The two pulleys 18, 20 each have only one flange 44 for lateral guidance of the drive belt 16. The flanged wheels 44 form on the inside start-up or guide surfaces 46 for the drive belt 16 in order to prevent lateral migration of the (running) drive belt 16 from the pulleys 18, 20. How out Fig. 2 shows, the first pulley 18 is tilted with its axis of rotation 18a at a first angle α 1 relative to the Lot 48 of the belt 16 spanned by the belt 16 belt plane.

Die zweite Riemenscheibe 20 ist mit ihrer Drehachse 20a gegensinnig zur Drehachse 18a der ersten Riemenscheibe 18 verkippt angeordnet und schließt mit dem Lot einen Winkel α2 ein. Der erste Winkel beträgt vorliegend ungefähr 0,38° und der zweite Winkel ungefähr 0,75°. Die beiden Drehachsen 18a, 20a sind somit in einer zur Riemenebene orthogonal ausgerichteten gemeinsamen Lotebene (nicht gezeigt) angeordnet und schneiden sich an einem nicht näher wiedergegebenen (hypothetischen) Schnittpunkt, der - von der Riemenebene E beabstandet - auf der Seite der Bordscheiben 44 der Riemenscheiben 18, 20 angeordnet ist.The second pulley 20 is arranged with its axis of rotation 20a tilted in opposite directions to the axis of rotation 18a of the first pulley 18 and includes an angle α 2 with the solder. The first angle is presently about 0.38 ° and the second angle about 0.75 °. The two axes of rotation 18a, 20a are thus arranged in a direction perpendicular to the belt plane perpendicular plumb plane (not shown) and intersect at an unspecified reproduced (hypothetical) point of intersection - spaced from the belt plane E - on the side of the flange pulleys 44 of the pulleys 18, 20 is arranged.

Der im Betrieb der Fadenführereinheit hin- und her bewegte (laufende) Treibriemen 16 ist durch die verkippte Anordnung der beiden Drehachsen 18a, 20a mit seiner den beiden Bordscheiben 44 der beiden Riemenscheiben 18, 20 zuweisenden Seitenflanke 16a gegen die Bordscheiben 44 geführt und auf diese Weise vor einem unerwünschten Abrutschen von der/den Riemenscheiben 18, 20 gesichert.The (driving) belt 16 which moves back and forth during operation of the yarn guide unit is provided by the tilted arrangement of the two axes of rotation 18a, 20a with its two flanges 44 of the two pulleys 18, 20 assigning side edge 16a guided against the flanges 44 and secured in this way against unwanted slippage of the / the pulleys 18, 20.

Wie aus Fig. 2 hervorgeht, weisen die beiden Riemenscheiben 18, 20 umfangsseitig Vertiefungen 50 auf, in die der vorliegend als Zahnriemen ausgebildete Treibriemen 16 eingreift. Der Treibriemen 16 kann alternativ auch als Flachriemen ausgebildet sein.How out Fig. 2 shows, the two pulleys 18, 20 circumferentially recesses 50 , which engages in the present case designed as a toothed belt 16 drive belt. The drive belt 16 may alternatively be formed as a flat belt.

Claims (10)

  1. Yarn guide unit (12) for a textile machine (10) comprising:
    - a yarn guide (22) to guide a yarn (24); and
    - a belt drive (14)
    with a drive belt (16) on which the yarn guide (22) is affixed, with a first and with a second pulley (18, 20) around which the drive belt (16) is guided, and
    with a controllable and/or adjustable drive motor (42) to drive one of the two pulleys (18, 20),
    characterised in that
    the two pulleys (18, 20) are each provided with one flange disc (44) only to guide the drive belt (16) laterally and wherein the two pulleys (18, 20) are arranged with their axes of rotation (18a, 20a) tilted in opposite directions relative to a line (48) perpendicular to a belt plane (E) along which the drive belt (16) lies in such a way that the drive belt (16) is guided with its side edge (16a) against the flange discs (44) of the two pulleys (18, 20) while the yarn guide unit (12) is running.
  2. Yarn guide unit according to claim 1, characterised in that the two pulleys (18, 20) are arranged with their axes of rotation (18a, 20a) tilted to varying degrees relative to the perpendicular line (48).
  3. Yarn guide unit according to claim 2, characterised in that the pulley (18, 20) driven by the drive motor (42) is tilted by its axis of rotation (18a, 20a) to a lesser degree relative to the perpendicular line (48) than that of the other of the two pulleys (18, 20).
  4. Yarn guide unit according to one of the foregoing claims, characterised in that the axis of rotation (18a, 20a) of the pulley (18, 20) driven by the drive motor (42) encloses a first angle (α1) in relation to the perpendicular line (48) where 0.25° ≤ α1 ≤ 0.5° and the axis of rotation (18a, 20a) of the other pulley (18, 20) encloses a second angle (α2) in relation to the perpendicular line (48) where 0.6° ≤ α2≤ 0.85°.
  5. Yarn guide unit according to one of the foregoing claims, characterised in that one of the two pulleys (18, 20) is formed as an idler pulley to tension the drive belt (16).
  6. Yarn guide unit according to claim 5, characterised in that the pulley (18, 20) formed as an idler pulley is provided with a flexibly deformable pretensioning element (34) by means of which the pulley (18, 20) can be changed to its tension setting which tensions the drive belt (16).
  7. Yarn guide unit according to claim 6, characterised in that the idler pulley is arranged on a slide (30) which is mounted displaceably on a bearing element (26) of the yarn guide unit (12).
  8. Yarn guide unit according to claim 7, characterised in that the slide (30) has locking means (38) to fasten the slide (30) to the bearing element (26).
  9. Yarn guide unit according to one of the foregoing claims, characterised in that the drive belt (16) is a flat belt or a toothed belt.
  10. Yarn guide unit according to one of the foregoing claims, characterised in that the drive belt (16) has a, preferably uniform, width (b) of from 3 mm to 10 mm.
EP20120197512 2012-12-17 2012-12-17 Thread guide unit for a textile machine Active EP2743223B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20120197512 EP2743223B1 (en) 2012-12-17 2012-12-17 Thread guide unit for a textile machine
CN201380070601.3A CN104936877B (en) 2012-12-17 2013-11-26 For the guide unit of weaving loom
PCT/EP2013/074725 WO2014095263A1 (en) 2012-12-17 2013-11-26 Thread guide unit for a textile machine
TW102146738A TWI519690B (en) 2012-12-17 2013-12-17 Yarn guide unit for a textile machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120197512 EP2743223B1 (en) 2012-12-17 2012-12-17 Thread guide unit for a textile machine

Publications (2)

Publication Number Publication Date
EP2743223A1 EP2743223A1 (en) 2014-06-18
EP2743223B1 true EP2743223B1 (en) 2015-01-28

Family

ID=47559138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120197512 Active EP2743223B1 (en) 2012-12-17 2012-12-17 Thread guide unit for a textile machine

Country Status (4)

Country Link
EP (1) EP2743223B1 (en)
CN (1) CN104936877B (en)
TW (1) TWI519690B (en)
WO (1) WO2014095263A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20155420A1 (en) * 2015-11-10 2017-05-10 Savio Macch Tessili Spa HEADLIGHT DEVICE OF ROCKER AND RELATIVE ROCKER
CN106988063A (en) * 2017-05-14 2017-07-28 响水县中兴纺织有限公司 A kind of colour-spun yarns production draw-gear
CN108914358B (en) * 2018-08-28 2019-12-17 武汉纺织大学 Constant-speed yarn guide system for flat knitting machine
CN112660942B (en) * 2020-12-24 2023-06-23 中国航空工业集团公司成都飞机设计研究所 Towing type bait cable winding and unwinding device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE45653C (en) * SCHNEIDER & FINGER in Aachen Spinning card for flamed yarns
US3333782A (en) * 1965-04-29 1967-08-01 Leesona Corp Winding machine
EP0311784B1 (en) * 1987-09-16 1992-03-11 Barmag Ag Winding apparatus
DE3901278A1 (en) * 1988-11-23 1990-05-31 Schlafhorst & Co W Apparatus for the production of a cross-wound bobbin
DE3919369C2 (en) * 1989-06-14 1997-02-20 Schlafhorst & Co W Cross-wound winding device
DE19644911A1 (en) * 1995-11-06 1997-05-07 Barmag Barmer Maschf Thread winder having traversing device with fast direction change
SE520492C2 (en) * 2000-03-06 2003-07-15 Biteam Ab Textile manufacturing process and apparatus
ATE276192T1 (en) * 2000-11-16 2004-10-15 Ssm Ag DEVICE FOR LAYING THREAD WHEN WINDING A THREAD ON A BOBBIN
JP4819390B2 (en) * 2005-04-19 2011-11-24 ゲイツ・ユニッタ・アジア株式会社 Belt mounting jig
DE202005008691U1 (en) * 2005-06-03 2005-08-11 Saurer Gmbh & Co. Kg Textile machine producing cross-wound bobbins has belt pulleys equipped on both sides of encompassing running surface with radially protruding securing elements formed in one piece on running surface for positioning of drive belt
CN200951890Y (en) * 2006-08-25 2007-09-26 丹阳仅一包装设备有限公司 Plat leather belt centring mechanism
CN201419922Y (en) * 2009-03-16 2010-03-10 杨建民 Variable-tilt trough roller unit

Also Published As

Publication number Publication date
TWI519690B (en) 2016-02-01
EP2743223A1 (en) 2014-06-18
WO2014095263A1 (en) 2014-06-26
CN104936877B (en) 2017-03-29
TW201430181A (en) 2014-08-01
CN104936877A (en) 2015-09-23

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