EP2743223A1 - Thread guide unit for a textile machine and belt drive - Google Patents
Thread guide unit for a textile machine and belt drive Download PDFInfo
- Publication number
- EP2743223A1 EP2743223A1 EP12197512.2A EP12197512A EP2743223A1 EP 2743223 A1 EP2743223 A1 EP 2743223A1 EP 12197512 A EP12197512 A EP 12197512A EP 2743223 A1 EP2743223 A1 EP 2743223A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- guide unit
- drive
- 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.)
- Granted
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- 239000004753 textile Substances 0.000 title claims description 9
- 229910000679 solder Inorganic materials 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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 thread guide unit for a textile machine and a belt drive for the thread guide unit.
- 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.
- 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 yarn guide unit and a belt drive for a yarn guide unit, which allow the use of a narrow drive belt and which are doing cheaper to manufacture and have little 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 beyond 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 drive motor driven pulley i.e., the drive pulley, according to the invention, preferably includes a first angle ⁇ 1 of 0.25 ⁇ ⁇ 1 ⁇ 0.5 ° with the solder.
- 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 flanged wheels, can 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 are 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 belt 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 °.
- the invention further relates to a belt drive for such a thread guide unit.
- 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.
Abstract
Description
Die Erfindung betrifft eine Fadenführereinheit für eine Textilmaschine sowie einen Riemenantrieb für die Fadenführereinheit.The invention relates to a thread guide unit for a textile machine and a belt drive for the thread guide unit.
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.
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 sowie einen Riementrieb für eine Fadenführereinheit anzugeben, die den Einsatz eines schmalen Treibriemens erlauben und die dabei kostengünstiger zu fertigen sind sowie einen nur geringen Montage- und Wartungsaufwand aufweisen.The invention is therefore based on the object to provide a yarn guide unit and a belt drive for a yarn guide unit, which allow the use of a narrow drive belt and which are doing cheaper to manufacture and have little installation and maintenance.
Die die Fadenführereinheit betreffende Aufgabe wird durch eine Fadenführereinheit mit den in Patentanspruch 1 angegebenen Merkmalen gelöst. Ein erfindungsgemäßer Riemenantrieb geht aus Patentanspruch 11 hervor.The task concerning the thread guide unit is achieved by a thread guide unit having the features specified in patent claim 1. An inventive belt drive is apparent from claim 11.
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 adjust 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 beyond 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 al 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 drive motor driven pulley, i.e., the drive pulley, according to the invention, preferably includes a first angle α1 of 0.25 ≤ α1 ≤ 0.5 ° with the solder. 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 flanged wheels, can 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 are 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.
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 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.
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.
- 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. Die Erfindung betrifft weiterhin einen Riemenantrieb für ein solche Fadenführereinheit.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 belt 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 °. The invention further relates to a belt drive for such a thread guide unit.
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.
- 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.
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.
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
The (driving)
Wie aus
Claims (11)
mit einem Treibriemen (16), an dem der Fadenführer (22) befestigt ist, mit einer ersten und mit einer zweiten Riemenscheibe (18, 20), um die der Treibriemen (16) geführt ist und
mit einem steuer- und/oder regelbaren Antriebsmotor (42) zum Antreiben einer der beiden Riemenscheiben (18, 20), wobei
die beiden Riemenscheiben (18, 20) zur seitlichen Führung des Treibriemens (16) jeweils mit nur einer Bordscheibe (44) versehen sind und wobei
die beiden Riemenscheiben (18, 20) mit ihren Drehachsen (18a, 20a) relativ zum Lot (48) einer durch den Treibriemen (16) aufgespannten Riemenebene (E) derart gegensinnig verkippt angeordnet sind, dass der Treibriemen (16) im Betrieb der Fadenführereinheit (12) mit seiner Seitenflanke (16a) gegen die Bordscheiben (44) der beiden Riemenscheiben (18, 20) geführt ist.
with a drive belt (16) on which the yarn guide (22) is fixed, with a first and with a second pulley (18, 20) about which the drive belt (16) is guided and
with a controllable and / or controllable drive motor (42) for driving one of the two pulleys (18, 20), wherein
the two pulleys (18, 20) for lateral guidance of the drive belt (16) are each provided with only one flange (44) and wherein
the two pulleys (18, 20) with their axes of rotation (18a, 20a) relative to the Lot (48) of the drive belt (16) spanned belt plane (E) are tilted in opposite directions such that the drive belt (16) during operation of the yarn guide unit (12) with its side edge (16 a) against the flange discs (44) of the two pulleys (18, 20) is guided.
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 true EP2743223A1 (en) | 2014-06-18 |
EP2743223B1 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)
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 |
Citations (5)
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DE45653C (en) * | SCHNEIDER & FINGER in Aachen | Spinning card for flamed yarns | ||
DE1560421A1 (en) * | 1965-04-29 | 1971-03-18 | Lessona Corp | Dishwasher |
DE3901278A1 (en) * | 1988-11-23 | 1990-05-31 | Schlafhorst & Co W | Apparatus for the production of a cross-wound bobbin |
DE3919369A1 (en) * | 1989-06-14 | 1990-12-20 | Schlafhorst & Co W | Reciprocating yarn guide - has carriers on continuous belt with transfer between belt levers at stroke ends to give high speed working |
EP1209114A1 (en) * | 2000-11-16 | 2002-05-29 | Schärer Schweiter Mettler AG | Yarn distributor for a device for winding yarn on a bobbin |
Family Cites Families (7)
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DE3869043D1 (en) * | 1987-09-16 | 1992-04-16 | Barmag Barmer Maschf | DISHWASHER. |
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 |
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 |
-
2012
- 2012-12-17 EP EP20120197512 patent/EP2743223B1/en active Active
-
2013
- 2013-11-26 CN CN201380070601.3A patent/CN104936877B/en active Active
- 2013-11-26 WO PCT/EP2013/074725 patent/WO2014095263A1/en active Application Filing
- 2013-12-17 TW TW102146738A patent/TWI519690B/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE45653C (en) * | SCHNEIDER & FINGER in Aachen | Spinning card for flamed yarns | ||
DE1560421A1 (en) * | 1965-04-29 | 1971-03-18 | Lessona Corp | Dishwasher |
DE3901278A1 (en) * | 1988-11-23 | 1990-05-31 | Schlafhorst & Co W | Apparatus for the production of a cross-wound bobbin |
DE3919369A1 (en) * | 1989-06-14 | 1990-12-20 | Schlafhorst & Co W | Reciprocating yarn guide - has carriers on continuous belt with transfer between belt levers at stroke ends to give high speed working |
EP1209114A1 (en) * | 2000-11-16 | 2002-05-29 | Schärer Schweiter Mettler AG | Yarn distributor for a device for winding yarn on a bobbin |
Also Published As
Publication number | Publication date |
---|---|
CN104936877A (en) | 2015-09-23 |
EP2743223B1 (en) | 2015-01-28 |
TWI519690B (en) | 2016-02-01 |
TW201430181A (en) | 2014-08-01 |
CN104936877B (en) | 2017-03-29 |
WO2014095263A1 (en) | 2014-06-26 |
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