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EP2191050B1 - Device for the production of fancy yarn - Google Patents

Device for the production of fancy yarn Download PDF

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Publication number
EP2191050B1
EP2191050B1 EP08802063A EP08802063A EP2191050B1 EP 2191050 B1 EP2191050 B1 EP 2191050B1 EP 08802063 A EP08802063 A EP 08802063A EP 08802063 A EP08802063 A EP 08802063A EP 2191050 B1 EP2191050 B1 EP 2191050B1
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EP
European Patent Office
Prior art keywords
yarn
thread
texturing
ramp
thread guide
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
EP08802063A
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German (de)
French (fr)
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EP2191050A1 (en
Inventor
Clive Mapp
Vital Seeholzer
Göksel Karaarslan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SSM Schaerer Schweiter Mettler AG
Original Assignee
SSM Schaerer Schweiter Mettler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from PCT/EP2007/007931 external-priority patent/WO2009036774A1/en
Application filed by SSM Schaerer Schweiter Mettler AG filed Critical SSM Schaerer Schweiter Mettler AG
Priority to EP08802063A priority Critical patent/EP2191050B1/en
Publication of EP2191050A1 publication Critical patent/EP2191050A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

Definitions

  • the invention relates to a device for producing effect yarns (flame aggregate) when texturing yarn by generating flames by short-term yarn delivery, with a motor driven linearly movable away from the yarn path carrier, wherein the driver has a yarn guide to by gripping the yarn with the yarn guide and laterally deflecting the yarn from its yarn path to produce a yarn underlayment; and a yarn processing machine having such a device and a texturing unit, e.g. with an air texturing nozzle (air texturing machine).
  • the thickenings thus produced are called flames.
  • the devices of EP 1 544 333 A1 and the EP 1277860 A1 is to provide the yarn excess by means of a linearly perpendicular to the yarn path of the effect yarn reciprocating yarn deflection mechanism with a driver the effect yarn alternately stretched and relaxed.
  • the entry speed of the fancy yarn into the air-texturing nozzle is slowed down, in order to increase again when relaxing.
  • the yarn is constantly guided during the reciprocating movement of a thread guide of the driver. Characterized that the mass of the driver is constantly accelerated by reversing the direction of movement of the driver, the production of very short flames limits.
  • a specification of a defined deflection length is therefore only possible to a limited extent, so that a baré effect can occur in the case of tissue woven from an effect yarn produced with this device.
  • the Barré effect refers to a faulty stiffness in fabrics made of chemical fibers.
  • the invention has for its object to provide an apparatus for producing flames in the air texturing of yarns, which avoids the disadvantages of the prior art and with the particular very short flames are generated.
  • This driver has a yarn guide to produce by Garn, ie also only detecting, a yarn of the yarn with the yarn guide and lateral deflection of the yarn from the yarn path, a Garnunterfact.
  • release means are provided which are adapted to the thread at a deflection point lying laterally from the thread run of the thread release the thread guide to produce the Garnüber constructive by abrupt termination of the deflection of the yarn.
  • the release means form a ramp, wherein the ramp is positioned such that the thread can be pushed onto the ramp in the region of the deflection point by means of the thread guide.
  • the ramp is understood to mean a surface which is oblique to the direction of movement of the driver.
  • the thread can be lifted out of the thread guide by being pushed on to release it and / or can be lifted away via the thread guide.
  • the yarn guide is thereby moved by the driver relative to the Auslinnenmittein, ie the ramp. That is, the ramp is an additional component to the thread guide, which is independently positioned or positioned by the thread guide.
  • the thread can be released in a very simple way independent of the thread tension.
  • the release means may simply be fixedly mounted as a rigid part in the region of the deflection point, or may be electromechanically adjustable to produce different sized flames, for example, in a periodically repeating deflection cycle of the thread in the effect yarn manufacturing process.
  • the length of the lateral deflection of the thread from its threadline is detached from the thread tension of the thread.
  • the Auslenkpe is therefore independent of the thread tension of the Stanford Vietnamese thread and can be adjusted exactly by the position of the ramp.
  • the device according to the invention is mounted in front of a texturing unit of a yarn processing machine, in particular an air-texturing nozzle of an air-texturing machine, in the yarn path of at least one of the effect yarns.
  • a texturing unit of a yarn processing machine in particular an air-texturing nozzle of an air-texturing machine
  • the thread of the filament yarn is stretched by the lateral deflection and then released much more quickly by releasing by means of the release means.
  • a brief excess of yarn occurs, which leads to a stronger texturing, ie to form a relatively increased to the remaining yarn bulkiness of the yarn, ie a so-called flame leads.
  • the flame length and the flame stroke which are determined by the length of the yarn, which is additionally supplied during the phase of the short yarn excess of eg air-texturing, determined by the duration of the deflection and the amount of deflection of the yarn from the yarn path.
  • the flame stroke is the thickness of a flame.
  • the recoil of the thread after its release makes it possible to achieve a yarn overfeed with a large excess of yarn in a very short time (transfer duration).
  • the transmission period is not limited by limiting factors of movement of a device part of the flame unit. It can be produced in a simple manner so very voluminous and short flames.
  • the size of the yarn excess is determined by the length of the extension of the yarn path of the yarn by the deflection.
  • the flame unit according to the invention can be achieved in a simple manner, a very large difference in length.
  • the length of the normal textured yarn ie the distance between the flames, is determined by the frequency of deflection by means of the driver and / or the speed with which the yarn enters the air-texturing nozzle.
  • the device according to the invention has a very simple construction, which leads to a very low susceptibility to failure of the device, low cost and to a reduction of thread breaks in the area of the device.
  • the ramp is controlled by a trigger positioner for varying the position of the deflection point controlled by a control unit displaced.
  • the ramp is eg electromechanical, in particular throughout the ongoing yarn manufacturing process, relocatable. Trained as a ramp release means are thus preferably electromechanically adjustable in their distance from the yarn path.
  • the deflection can be carried out periodically, so that a deflection cycle of different distances of successive deflection points is achieved controlled to the yarn path.
  • an independence of the length of the deflection of the thread at the deflection of the thread tension is given. That is, the release of the thread from the thread guide depends solely on the current position of the ramp and not on the thread tension of the thread.
  • the control unit may be arranged to be freely programmable to vary the frequency of the deflection, ie the deflection cycle, so that the deflections of the thread from its threadline upon release of the thread from one to the other deflection cycle can be greatly altered.
  • the deflection point can be freely selected and set for each individual deflection, ie each flame to be produced on the effect yarn.
  • the thread of the yarn can be deflected and ejected differently at each deflection cycle, ie be released from the thread guide.
  • the driver is mounted on a, preferably formed by a rope or a belt, traversing element, wherein the preferred controlled motor drive of the driver, the traversing element is set up to rotate around deflections.
  • the structure of the traversing element thus corresponds to a belt drive. In this way, a very large deflection can be achieved with a simple structure. If the traversing element completely rotates in one direction, ie, the driver also completely rotates, the direction of movement of the drive need not be reversed in order to produce successive deflections of the thread. The number of deflections and thus the number of flames that can be generated per yarn length is then proportional to the rotational frequency of the traversing element.
  • driver can also reciprocate, as for example in the devices of the EP 1 544 333 A1 and the EP 1277860 A1 the case is.
  • the thread guide is formed by two thread guide edges on the driver, wherein the release means engage to release the thread between the thread guide edges, a particularly secure release of the thread is ensured by the thread guide.
  • a controller When a controller is provided to control a driver's motor drive such that flames of predetermined or substantially random size and / or with predetermined or substantially random spacing are created on the yarn, the occurrence of patterns in the processed, e.g. knitted or woven yarn can be avoided. Since the distance between two flames is determined by the rotational speed of the drive, the flames can be so variably spaced. Varying may e.g. be performed according to a predetermined function or randomly by a program control of an electronic engine control, which makes possible strong changes of the flames per deflection cycle, ie the cycle of a variation of the position of the deflection point by means of displacement of the ramp.
  • the device according to the invention is arranged in the yarn path of a yarn to be processed in the texturing unit in front of the texturing unit.
  • the device according to the invention can be dimensioned so small that the device can be arranged within a protective housing of the air-texturing nozzle.
  • the device can in the sound and splash water protection housing the Lucastexturierdüse known air texturing machines are installed.
  • the resulting short distance between the device according to the invention and the air-texturing nozzle leads to better system dynamics of the air-texturing nozzle, ie to a more stable running of the yarn during yarn production.
  • FIGS. 1a to 1c is an embodiment of a flame unit 1 according to the invention and its arrangement in a plane perpendicular to the yarn path of the yarn to be textured, shown schematically.
  • the figures show the process of lateral deflection of a yarn 2 of the yarn from the yarn path for generating a flame during texturing of the yarn.
  • the flame unit 1 has a driver 4 which is mounted on a cable 6 or a belt of a traversing element.
  • the cable 6, or the belt is guided in a manner similar to a belt drive by two deflections 8 designed as wheels. At least one of the wheels is by means of a in FIG. 1 Not shown electric motor driven, so that the traversing element rotates driven with the driver 4 in the direction indicated by arrows.
  • the driver 4 has a yarn guide 9, by means of which, by gripping the yarn 2 during rotation of the driver 4, the yarn is linearly movable away from the yarn path, ie the yarn 2 is laterally deflectable, whereby a Garnunterson can be generated.
  • This deflection of the thread 2 from the yarn path is in FIG. 1b shown.
  • the thread 2 in its original threadline is shown as a circle point with a white core.
  • the yarn guide 9 is formed by the right in the figure edge of the driver 4.
  • the lateral deflection of the thread 2 is in FIG. 1b symbolized by a dashed arrow.
  • the driver 4 thus starts to produce a Garnüber composed from in FIG. 1a position shown in the direction of FIG. 1b position shown. In between, he comes with the current yarn, ie with the Garnlauf economically a texturing process on the flame unit 1 laterally passing yarn in contact and engages or detects this to the lateral deflection in the direction of the release means 10 (trigger).
  • the trigger 10 forms a ramp which is positioned such that the thread 2 can be pushed onto the ramp in the region of a deflection point by means of the thread guide 9.
  • This will cause the yarn, as in Figure 1c shown lifted from the trigger 10 on the yarn guide 9 forming edge of the driver 4 to its release, whereby the yarn elastic in its existing before deflecting yarn path, ie in the in FIG. 1a shown original position, can snap back.
  • the latter is in Figure 1c symbolized by a dashed arrow.
  • the trigger positioning device 50 is in the FIGS. 1a and 1b symbolically represented by a double arrow.
  • FIG. 2 is the driver 4 of the flame unit from the FIGS. 1 shown in a perspective view.
  • the driver 4 has a thread guide, which is formed by one edge 13,14 (thread guide edge) of two triangular projections on the driver 4.
  • ramp of the trigger can thus engage between the thread guide edges 13,14 to lift the thread to its release on the thread guide 9 of the driver.
  • FIG. 3 the arrangement of a flame unit 1 according to the invention in a yarn processing machine according to the invention with an air-texturing nozzle 30 is shown.
  • the arranged in a protective housing 32 Lufttexturierdüse 30 is arranged in the yarn path 35 of the yarn after the flame unit 1.
  • the thread running direction of the yarn is symbolized by an arrowhead.
  • the flame unit 1 according to the invention can also be arranged inside the protective housing 32.
  • the motor 40 of the flame unit 1 drives one of the deflectors 8 designed as wheels in such a way that on a rope 6, or a belt mounted driver 4 in the direction of the arrow shown can be moved perpendicular to the yarn path 35, so that the yarn during a movement of the driver 4, linearly away from the yarn path 35, is deflected laterally.
  • the yarn is released by the trigger 10 at a trigger point and can snap back into the yarn path 35 shown in the figure.
  • the shutter 10 formed as a ramp is attached to a trigger positioner having an electric motor 52 to which the ramp is connected, for example, via a steel belt 51 to its controlled displaceability.
  • the release means are so electromechanically adjustable so that in deflection cycles the Auslenkin, ie the distance of the trigger point to the threadline, can be varied.
  • the frequency of the deflection in a control module can be freely programmable and vary per deflection cycle.
  • the serving as a thread ejector ramp is so, for example, similar to a band looper of a loom, moved over the connected to the electric motor 52 steel strip 51.
  • Proposed is a device 1 for producing effect yarns in the texturing of yarn by generating flames by short-term GarnüberCES, with a motor driven linearly movable away from the yarn path 35 driver 4, wherein the driver 4 has a yarn guide 9, by gripping a thread 2 of Yarn with the yarn guide 9 and lateral deflection of the yarn from the yarn path 35 to produce a Garnunterfact.
  • release means 10 are provided, adapted to release the yarn 2 at a laterally from the yarn path 35 of the yarn 2 deflection point from the yarn guide 9 to produce the Garnüber constructive by abrupt termination of the deflection of the yarn.
  • the release means 10 form a ramp, wherein the ramp is positioned such that the thread 2 in the region of the deflection point by means of the thread guide. 9 can be pushed onto the ramp, wherein the thread 2 can be lifted out of the thread guide 9 by being pushed on to release it and / or can be lifted away via the thread guide 9.
  • the device works detached from the thread tension.
  • the invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Erzeugen von Effektgarnen (Flammaggregat) beim Texturieren von Garn durch Erzeugen von Flammen durch kurzzeitige Garnüberlieferung, mit einem motorisch angetrieben linear vom Fadenlauf weg bewegbaren Mitnehmer, wobei der Mitnehmer einen Fadenführer aufweist, um durch Greifen des Fadens mit dem Fadenführer und seitliches Auslenken des Garns aus dessen Fadenlauf eine Garnunterlieferung zu erzeugen; sowie eine Garnbearbeitungsmaschine mit einer derartigen Vorrichtung und einer Texturiereinheit, z.B. mit einer Lufttexturierdüse (Lufttexturiermaschine).The invention relates to a device for producing effect yarns (flame aggregate) when texturing yarn by generating flames by short-term yarn delivery, with a motor driven linearly movable away from the yarn path carrier, wherein the driver has a yarn guide to by gripping the yarn with the yarn guide and laterally deflecting the yarn from its yarn path to produce a yarn underlayment; and a yarn processing machine having such a device and a texturing unit, e.g. with an air texturing nozzle (air texturing machine).

Beim Lufttexturieren wird Filamentgarnen, meist im vollverstreckten Zustand (FDY, Fully Drawn Yarn), mittels einer Verwirbelungsdüse (Lufttexturierdüse) eine Bauschigkeit verliehen. Dabei werden mindestens zwei Garne miteinander verbunden. Es handelt sich dabei um mindestens ein sogenanntes Coregarn und mindestens ein sogenanntes Effektgarn, das durch das Lufttexturieren um das Coregarn herum angeordnet wird. Ändert sich diese Bauschigkeit im Fadenverlauf, spricht man von einem sogenannten Fantasiegarn, ansonsten von einem sogenannten texturierten Garn. Durch das Coregarn wird die Festigkeit des Fantasiegarns bestimmt. Durch das Effektgarn werden die taktilen Eigenschaften des Fantasiegarns, z.B. dessen Bauschigkeit, bestimmt. Die Bauschigkeit des Fantasiegarns wird weiter durch die relativen Geschwindigiceiten, mit denen die Garne in die Lufttexturierdüse einlaufen, bestimmt. Je mehr Effektgarn pro Länge Coregarn in die Lufttexturierdüse einläuft, d.h. je schneller das Effektgarn relativ zum Coregarn in die Lufttexturierdüse einläuft, desto bauschiger wird das hergestellte Garn.When air texturing filament yarns, usually in the fully stretched state (FDY, Fully Drawn Yarn), by means of a swirl nozzle (Lufttexturierdüse) imparted a lumpiness. At least two yarns are connected with each other. It is at least a so-called core yarn and at least one so-called effect yarn, which is arranged by the air texturing around the core yarn around. If this loft changes in the course of the thread, it is called a fantasy yarn, otherwise a so-called textured yarn. The core yarn determines the strength of the fantasy yarn. The effect yarn determines the tactile properties of the fantasy yarn, eg its bulkiness. The bulk of the fantasy yarn is further determined by the relative velocities with which the yarns enter the air-texturing die. The more effect yarn per length of coregarn enters the air-texturing nozzle, ie the faster the effect yarn enters the air-texturing nozzle relative to the core yarn, the fluffier the yarn produced becomes.

Bei der Lufttexturierung ist es bekannt, die Bauschigkeit des hergestellten Garns zu variieren. Dazu wird die Menge des am Eingang der Lufttexturierdüse bereit gestellten Garns pro Zeit variiert, d.h. die Einlaufgeschwindigkeit des Effektgarns wird variiert. Vorrichtungen dazu sind z.B. aus der EP 1 544 333 A1 oder der EP 1277860 A1 bekannt. Im Prinzip wird dabei sich wiederholend kurzzeitig am Eingang der Lufttexturierdüse abwechselnd ein Garnüberschuss (Bereich einer Garnüberlieferung) und eine Garnknappkeit (Bereich einer Garnunterlieferung) relativ zu einer konstanten Einlaufgeschwindigkeit bereit gestellt. Dieser Garnüberschuss führt zu einer Verdickung des hergestellten Garns an der Stelle am Faden, wo der Garnüberschuss vorhanden war, d.h. dort weist der Faden eine größere Bauschigkeit auf. Die so erzeugten Verdickungen werden als Flammen bezeichnet.
Bei den Vorrichtungen der EP 1 544 333 A1 und der EP 1277860 A1 wird zur Bereitstellung des Garnüberschusses mittels einem sich linear senkrecht zum Fadenlauf des Effektgarns hin- und herbewegenden Fadenauslenkungsmechanismus mit einem Mitnehmer das Effektgarn abwechselnd gespannt und entspannt. Beim Spannen wird die Einlaufgeschwindigkeit des Effektgarns in die Lufttexturierdüse abgebremst, um sich beim Entspannen wieder zu erhöhen. Bei diesen Vorrichtungen ist das Garn während der Hin- und Herbewegung ständig von einem Fadenführer des Mitnehmers geführt. Dadurch dass die Masse des Mitnehmers durch das Umkehren der Bewegungsrichtung des Mitnehmers ständig beschleunigt wird, sind dem Erzeugen von sehr kurzen Flammen Grenzen gesetzt.In air texturing, it is known to vary the bulk of the yarn produced. For this purpose, the amount of yarn provided at the inlet of the air-texturing nozzle is varied per unit of time, ie the entry speed of the effect yarn is varied. Devices are for example from the EP 1 544 333 A1 or the EP 1277860 A1 known. In principle, a yarn excess (area of a yarn overfeed) and a yarn shortage (area of a yarn underdelivery) are alternately provided for a short time at the entrance of the air-texturing nozzle, relative to a constant running-in speed. This yarn excess leads to a thickening of the yarn produced at the point on the thread where the excess yarn was present, ie there, the thread has a greater bulkiness. The thickenings thus produced are called flames.
In the devices of EP 1 544 333 A1 and the EP 1277860 A1 is to provide the yarn excess by means of a linearly perpendicular to the yarn path of the effect yarn reciprocating yarn deflection mechanism with a driver the effect yarn alternately stretched and relaxed. During clamping, the entry speed of the fancy yarn into the air-texturing nozzle is slowed down, in order to increase again when relaxing. In these devices, the yarn is constantly guided during the reciprocating movement of a thread guide of the driver. Characterized that the mass of the driver is constantly accelerated by reversing the direction of movement of the driver, the production of very short flames limits.

Eine weitere gattungsgemäße Vorrichtung ist in der US 3,025,563 offenbart. Bei dieser Vorrichtung ist ein Mitnehmer auf einem Changierelement montiert, wobei zum motorischen Antrieb des Mitnehmers das Changierelement zum Umlaufen um Umlenkungen eingerichtet ist. Ein am Mitnehmer befestigter abgewinkelter Fadenführer lenkt dabei den Faden aus dessen Fadenlauf soweit aus, bis der Faden durch die beim Auslenken steigende Fadenspannung über eine obere Kante des Fadenführers rutscht, wodurch der Faden freigegeben wird und in den Fadenlauf zurückschnellt. Die Länge der Auslenkung (Auslenklänge) des Fadens aus dessen Fadenlauf wird dabei durch eine zur Freigabe notwendige Fadenspannung festgelegt. Die Auslenklänge steht also im direkten Zusammenhang mit der Fadenspannung und der Geometrie des als gebogenen Stift ausgeführten Fadenführers. Eine Vorgabe einer definierten Auslenklänge ist daher nur bedingt möglich, so dass bei, aus einem mit dieser Vorrichtung hergestelltem Effektgarn gewebten Gewebe ein Barré-Effekt auftreten kann.
Als Barré-Effekt bezeichnet man eine fehlerhafte Steifigkeit bei Geweben aus Chemiefasern.Another generic device is in the US 3,025,563 disclosed. In this device, a driver is mounted on a traversing element, wherein the traction element is set to rotate around deflections for motor drive of the driver. An angled thread guide fastened to the driver deflects the thread from its thread run until the thread reaches an upper thread as a result of the thread tension rising during the deflection Edge of the thread guide slips, whereby the thread is released and snaps back into the threadline. The length of the deflection (Auslenklänge) of the thread from the yarn path is determined by a necessary to release thread tension. The Auslenklänge is therefore directly related to the thread tension and the geometry of the executed as a curved pencil thread guide. A specification of a defined deflection length is therefore only possible to a limited extent, so that a baré effect can occur in the case of tissue woven from an effect yarn produced with this device.
The Barré effect refers to a faulty stiffness in fabrics made of chemical fibers.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Erzeugen von Flammen beim Lufttexturieren von Garnen bereitzustellen, welche die Nachteile des Standes der Technik vermeidet und mit der insbesondere sehr kurze Flammen erzeugbar sind.The invention has for its object to provide an apparatus for producing flames in the air texturing of yarns, which avoids the disadvantages of the prior art and with the particular very short flames are generated.

Diese Aufgabe wird durch die Vorrichtung des unabhängigen Anspruchs gelöst. Die abhängigen Ansprüche stellen bevorzugte Ausführungsformen der Erfindung dar.This object is solved by the device of the independent claim. The dependent claims represent preferred embodiments of the invention.

Bei einer erfindungsgemäßen Vorrichtung zum Erzeugen von Effektgarnen beim Texturieren von Garn durch Erzeugen von Flammen durch kurzzeitige Garnüberlieferung ist ein motorisch angetrieben linear vom Fadenlauf weg, d.h. im Wesentlichen geradlinig, bevorzugt senkrecht zum Fadenlauf, bewegbarer Mitnehmer vorhanden. Dieser Mitnehmer weist einen Fadenführer auf, um durch Greifen, d.h. auch lediglich Erfassen, eines Fadens des Garns mit dem Fadenführer und seitliches Auslenken des Garns aus dessen Fadenlauf eine Garnunterlieferung zu erzeugen.
Erfindungsgemäß sind Auslösemittel vorgesehen, die eingerichtet sind, den Faden an einem seitlich vom Fadenlauf des Fadens liegenden Auslenkpunkt aus der Fadenführung freizugeben um die Garnüberlieferung durch abruptes Beenden der Auslenkung des Garns zu erzeugen.
Dabei bilden die Auslösemittel eine Rampe aus, wobei die Rampe derart positioniert ist, dass der Faden im Bereich des Auslenkpunktes mittels des Fadenführers auf die Rampe aufschiebbar ist. Als Rampe wird dabei eine Fläche verstanden, die schräg zur Bewegungsrichtung des Mitnehmers steht. Der Faden ist dabei durch das Aufschieben zu dessen Freigabe aus dem Fadenführer heraushebbar und/oder über den Fadenführer weghebbar. Der Fadenführer wird dabei durch den Mitnehmer relativ zu den Auslösemittein, d.h. der Rampe, bewegt. D.h. die Rampe ist ein zum Fadenführer zusätzliches Bauteil, das vom Fadenführer unabhängig positioniert bzw. positionierbar ist.In a device according to the invention for producing effect yarns in the texturing of yarn by generating flames by short-term yarn delivery is a motor driven linear away from the yarn path, ie substantially rectilinear, preferably perpendicular to the yarn path, movable driver available. This driver has a yarn guide to produce by Garn, ie also only detecting, a yarn of the yarn with the yarn guide and lateral deflection of the yarn from the yarn path, a Garnunterlieferung.
According to the invention release means are provided which are adapted to the thread at a deflection point lying laterally from the thread run of the thread release the thread guide to produce the Garnüberlieferung by abrupt termination of the deflection of the yarn.
In this case, the release means form a ramp, wherein the ramp is positioned such that the thread can be pushed onto the ramp in the region of the deflection point by means of the thread guide. The ramp is understood to mean a surface which is oblique to the direction of movement of the driver. The thread can be lifted out of the thread guide by being pushed on to release it and / or can be lifted away via the thread guide. The yarn guide is thereby moved by the driver relative to the Auslösemittein, ie the ramp. That is, the ramp is an additional component to the thread guide, which is independently positioned or positioned by the thread guide.

Derart kann der Faden auf sehr einfache Weise unabhängig von der Fadenspannung freigegeben werden. Die Auslösemittel können z.B. einfach als starres Teil im Bereich des Auslenkpunktes fest montiert sein oder aber elektromechanisch verstellbar sein, um unterschiedlich große Flammen z.B. in einem sich periodisch wiederholenden Auslenkungszyklus des Fadens im Effektgarnherstellungsprozess zu erzeugen. Die Länge der seitlichen Auslenkung des Fadens aus seinem Fadenlauf ist dabei von der Fadenspannung des Fadens losgelöst. Die Auslenklänge ist also unabhängig von der Fadenspannung des auszulenkenden Fadens und kann genau durch die Position der Rampe eingestellt werden.
Die erfindungsgemäße Vorrichtung wird vor einer Texturiereinheit einer Garnbearbeitungsmaschine, insbesondere einer Lufttexturierdüse einer Lufttexturiermaschine, im Fadenlauf mindestens eines der Effektgarne montiert. Mittels des Mitnehmers wird der Faden des Filamentgarns durch das seitliche Auslenken gespannt und anschließend durch das Freigeben mittels der Auslösemittel sehr viel schneller entspannt. Dadurch entsteht am Eingang der z.B. Lufttexturierdüse ein kurzzeitiger Garnüberschuss, welcher zu einer stärkeren Texturierung, d.h. zum Ausbilden einer relativ zum restlichen Garn erhöhten Bauschigkeit des Garns, also einer sogenannten Flamme, führt.
Die Flammenlänge und der Flammenhub, welche durch die Länge des Garns, welches während der Phase des kurzzeitigen Garnüberschusses zusätzlich der z.B. Lufttexturierdüse zugeführt wird, bestimmt sind, werden durch die Dauer der Auslenkung und den Betrag der Auslenkung des Garns aus dessen Fadenlauf bestimmt. Beim Flammenhub handelt es sich um die Dicke einer Flamme.
Das Zurückschnellen des Fadens nach dessen Freigabe ermöglicht es, eine Garnüberlieferung mit einem großen Garnüberschuss in einer sehr kurzen Zeit (Überlieferungsdauer) zu erreichen. Die Überlieferungsdauer ist dabei nicht durch limitierende Faktoren einer Bewegung eines Vorrichtungsteils des Flammaggregats begrenzt. Es können so sehr voluminöse und kurze Flammen auf einfache Weise erzeugt werden. Die Größe des Garnüberschusses wird dabei durch die Länge der Verlängerung des Fadenlaufs des Garns durch das Auslenken bestimmt. Sie ergibt sich also durch die Längendifferenz des Fadenlaufes des Garns bei vollständiger Auslenkung am Auslenkpunkt zur Länge des Fadenlaufes ohne Auslenkung. Mit dem erfindungsgemäßen Flammaggregat kann auf einfache Weise eine sehr große Längendifferenz erreicht werden.
Mit der erfindungsgemäßen Vorrichtung können die Produktionsparameter derartiger Flammen einfach eingestellt werden. Die Länge des normal texturierten Garns, also der Abstand zwischen den Flammen, wird bestimmt über die Frequenz des Auslenkens mittels des Mitnehmers und/oder die Geschwindigkeit, mit der das Garn in die Lufttexturierdüse einläuft.
Die erfindungsgemäße Vorrichtung weist einen sehr einfachen Aufbau auf, was zu einer sehr geringen Störanfälligkeit der Vorrichtung, geringen Kosten und zu einer Verminderung von Fadenbrüchen im Bereich der Vorrichtung führt.In this way, the thread can be released in a very simple way independent of the thread tension. For example, the release means may simply be fixedly mounted as a rigid part in the region of the deflection point, or may be electromechanically adjustable to produce different sized flames, for example, in a periodically repeating deflection cycle of the thread in the effect yarn manufacturing process. The length of the lateral deflection of the thread from its threadline is detached from the thread tension of the thread. The Auslenklänge is therefore independent of the thread tension of the auszulenkenden thread and can be adjusted exactly by the position of the ramp.
The device according to the invention is mounted in front of a texturing unit of a yarn processing machine, in particular an air-texturing nozzle of an air-texturing machine, in the yarn path of at least one of the effect yarns. By means of the driver, the thread of the filament yarn is stretched by the lateral deflection and then released much more quickly by releasing by means of the release means. As a result, at the entrance of the air-texturing nozzle, for example, a brief excess of yarn occurs, which leads to a stronger texturing, ie to form a relatively increased to the remaining yarn bulkiness of the yarn, ie a so-called flame leads.
The flame length and the flame stroke, which are determined by the length of the yarn, which is additionally supplied during the phase of the short yarn excess of eg air-texturing, determined by the duration of the deflection and the amount of deflection of the yarn from the yarn path. The flame stroke is the thickness of a flame.
The recoil of the thread after its release makes it possible to achieve a yarn overfeed with a large excess of yarn in a very short time (transfer duration). The transmission period is not limited by limiting factors of movement of a device part of the flame unit. It can be produced in a simple manner so very voluminous and short flames. The size of the yarn excess is determined by the length of the extension of the yarn path of the yarn by the deflection. It thus results from the difference in length of the yarn path of the yarn with complete deflection at the deflection point to the length of the yarn path without deflection. With the flame unit according to the invention can be achieved in a simple manner, a very large difference in length.
With the device according to the invention, the production parameters of such flames can be easily adjusted. The length of the normal textured yarn, ie the distance between the flames, is determined by the frequency of deflection by means of the driver and / or the speed with which the yarn enters the air-texturing nozzle.
The device according to the invention has a very simple construction, which leads to a very low susceptibility to failure of the device, low cost and to a reduction of thread breaks in the area of the device.

Besonders bevorzugt ist die Rampe mittels einer Auslöserpositioniervorrichtung zur Variation der Position des Auslenkpunktes durch eine Steuereinheit gesteuert verschiebbar. Die Rampe ist dabei z.B. elektromechanisch, insbesondere währende des laufenden Garnherstellungsprozesses, verschiebbar. Die als Rampe ausgebildeten Auslösemittel sind also in ihrem Abstand zum Fadenlauf bevorzugt elektromechanisch verstellbar. Das Auslenken kann dabei periodisch vorgenommen werde, so dass ein Auslenkungszyklus verschiedener Abstände von aufeinander folgenden Auslenkungspunkten zum Fadenlauf gesteuert erreicht wird. Auch hier ist eine Unabhängigkeit der Länge der Auslenkung des Fadens am Auslenkpunkt von der Fadenspannung gegeben. D.h. die Freigabe des Fadens aus dem Fadenführer hängt alleine von der momentanen Position der Rampe ab und nicht von der Fadenspannung des Fadens. Die Steuereinheit kann derart eingerichtet sein, dass sie zur Variation der Frequenz des Auslenkens, d.h. des Auslenkungszyklus, frei programmierbar ist, so dass die Auslenkungen des Fadens aus dessen Fadenlauf bei der Freigabe des Fadens von einem zum anderen Auslenkungszyklus stark verändert werden kann. Der Auslenkpunkt kann dabei für jede einzelne Auslenkung, d.h. jede zu erzeugende Flamme am Effektgarn, frei gewählt und eingestellt werden. Der Faden des Garns kann dabei bei jedem Auslenkzyklus unterschiedlich weit ausgelenkt und ausgeworfen werden, d.h. vom Fadenführer frei gegeben werden.Particularly preferably, the ramp is controlled by a trigger positioner for varying the position of the deflection point controlled by a control unit displaced. The ramp is eg electromechanical, in particular throughout the ongoing yarn manufacturing process, relocatable. Trained as a ramp release means are thus preferably electromechanically adjustable in their distance from the yarn path. The deflection can be carried out periodically, so that a deflection cycle of different distances of successive deflection points is achieved controlled to the yarn path. Again, an independence of the length of the deflection of the thread at the deflection of the thread tension is given. That is, the release of the thread from the thread guide depends solely on the current position of the ramp and not on the thread tension of the thread. The control unit may be arranged to be freely programmable to vary the frequency of the deflection, ie the deflection cycle, so that the deflections of the thread from its threadline upon release of the thread from one to the other deflection cycle can be greatly altered. The deflection point can be freely selected and set for each individual deflection, ie each flame to be produced on the effect yarn. The thread of the yarn can be deflected and ejected differently at each deflection cycle, ie be released from the thread guide.

Bevorzugt ist der Mitnehmer auf einem, vorzugsweise durch ein Seil oder einen Riemen ausgebildetes, Changierelement montiert, wobei zum bevorzugt gesteuerten motorischen Antrieb des Mitnehmers das Changierelement zum Umlaufen um Umlenkungen eingerichtet ist. Der Aufbau des Changierelements entspricht so einem Riemenantrieb. Auf diese Weise kann mit einem einfachen Aufbau eine sehr große Auslenkung erreicht werden. Wenn das Changierelement vollständig in einer Richtung umläuft, d.h. auch der Mitnehmer vollständig umläuft, muss die Bewegungsrichtung des Antriebes nicht umgekehrt werden, um hintereinander folgende Auslenkungen des Fadens zu erzeugen. Die Anzahl der Auslenkungen und damit die Anzahl der pro Garnlänge erzeugbaren Flammen ist dann zur Umdrehungsfrequenz des Changierelements proportional. Der Mitnehmer kann sich jedoch auch hin- und herbewegen, wie dies z.B. bei den Vorrichtungen der EP 1 544 333 A1 und der EP 1277860 A1 der Fall ist.Preferably, the driver is mounted on a, preferably formed by a rope or a belt, traversing element, wherein the preferred controlled motor drive of the driver, the traversing element is set up to rotate around deflections. The structure of the traversing element thus corresponds to a belt drive. In this way, a very large deflection can be achieved with a simple structure. If the traversing element completely rotates in one direction, ie, the driver also completely rotates, the direction of movement of the drive need not be reversed in order to produce successive deflections of the thread. The number of deflections and thus the number of flames that can be generated per yarn length is then proportional to the rotational frequency of the traversing element. Of the However, driver can also reciprocate, as for example in the devices of the EP 1 544 333 A1 and the EP 1277860 A1 the case is.

Wenn der Fadenführer von zwei Fadenführungskanten am Mitnehmer ausgebildet ist, wobei die Auslösemittel zur Freigabe des Fadens zwischen die Fadenführungskanten eingreifen, ist ein besonders sicheres Freigeben des Fadens von dem Fadenführer gewährleistet.If the thread guide is formed by two thread guide edges on the driver, wherein the release means engage to release the thread between the thread guide edges, a particularly secure release of the thread is ensured by the thread guide.

Wenn eine Steuerung vorgesehen ist, eingerichtet einen motorischen Antrieb des Mitnehmers derart zu steuern, dass Flammen vorgegebener oder im Wesentlichen zufälliger Größe und/oder mit vorgegebenem oder im Wesentlichen zufälligem Abstand an dem Garn erzeugt werden, kann das Auftreten von Mustern im verarbeiteten, z.B. gestrickten oder gewebten Garn vermieden werden. Da der Abstand zwischen zwei Flammen durch die Drehgeschwindigkeit des Antriebs mitbestimmt wird, können die Flammen so variabel beabstandet werden. Das Variieren kann z.B. nach einer vorgegebenen Funktion oder zufällig durch eine Programmsteuerung einer elektronischen Motorsteuerung vorgenommen werden, was starke Veränderungen der Flammen pro Auslenkungszyklus, also dem Zyklus einer Variation der Position des Auslenkpunktes mittels Verschiebung der Rampe, möglich macht.When a controller is provided to control a driver's motor drive such that flames of predetermined or substantially random size and / or with predetermined or substantially random spacing are created on the yarn, the occurrence of patterns in the processed, e.g. knitted or woven yarn can be avoided. Since the distance between two flames is determined by the rotational speed of the drive, the flames can be so variably spaced. Varying may e.g. be performed according to a predetermined function or randomly by a program control of an electronic engine control, which makes possible strong changes of the flames per deflection cycle, ie the cycle of a variation of the position of the deflection point by means of displacement of the ramp.

In einer erfindungsgemäßen Garnbearbeitungsmaschine mit einer Texturiereinheit, z.B. einer Lufttexturierdüse, und einer erfindungsgemäßen Vorrichtung zum Erzeugen von Flammen ist die erfindungsgemäße Vorrichtung im Fadenlauf eines in der Texturiereinheit zu bearbeitenden Garns vor der Texturiereinheit angeordnet.In a yarn processing machine according to the invention having a texturing unit, e.g. an air-texturing nozzle, and a device according to the invention for producing flames, the device according to the invention is arranged in the yarn path of a yarn to be processed in the texturing unit in front of the texturing unit.

Die erfindungsgemäße Vorrichtung kann so klein dimensioniert sein, dass die Vorrichtung innerhalb eines Schutzgehäuses der Lufttexturierdüse angeordnet sein kann. Die Vorrichtung kann in das Schall- und Spritzwasserschutzgehäuse der Lufttexturierdüse bekannter Lufttexturiermaschinen eingebaut werden. Die dadurch erreichte kurze Distanz zwischen der erfindungsgemäßen Vorrichtung und der Lufttexturierdüse führt zu einer besseren Systemdynamik der Lufttexturierdüse, d.h. zu einem stabileren Lauf des Fadens bei der Garnproduktion.The device according to the invention can be dimensioned so small that the device can be arranged within a protective housing of the air-texturing nozzle. The device can in the sound and splash water protection housing the Lufttexturierdüse known air texturing machines are installed. The resulting short distance between the device according to the invention and the air-texturing nozzle leads to better system dynamics of the air-texturing nozzle, ie to a more stable running of the yarn during yarn production.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen näher erläutert.

  • Die Figuren 1a bis 1c zeigen eine Ausführungsform eines erfindungsgemäßen Flammaggregats;
  • Die Figur 2 zeigt den Mitnehmer des Flammaggregats aus den Figuren 1 in einer perspektivischen Darstellung;
  • Die Figur 3 zeigt die Anordnung eines erfindungsgemäßen Flammaggregats in einer erfindungsgemäßen Garnbearbeitungsmaschine.
The invention will be explained in more detail using an exemplary embodiment with reference to the drawings.
  • The FIGS. 1a to 1c show an embodiment of a flame unit according to the invention;
  • The FIG. 2 shows the driver of the flame unit from the FIGS. 1 in a perspective view;
  • The FIG. 3 shows the arrangement of a flame unit according to the invention in a yarn processing machine according to the invention.

Die Figuren der Zeichnungen zeigen den erfindungsgemäßen Gegenstand stark schematisiert und sind nicht maßstäblich zu verstehen. Die einzelnen Bestandteile des erfindungsgemäßen Gegenstandes sind so dargestellt, dass ihr Aufbau gut gezeigt werden kann.The figures of the drawings show the subject matter of the invention in a highly schematic manner and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In den Figuren 1a bis 1c ist eine Ausführungsform eines erfindungsgemäßen Flammaggregats 1 und dessen Anordnung in einer Ebene, auf die der Fadenlauf des zu texturierenden Garns senkrecht steht, schematisch gezeigt. Die Figuren zeigen dabei den Ablauf des seitlichen Auslenkens eines Fadens 2 des Garns aus dessen Fadenlauf zum Erzeugen einer Flamme beim Texturieren des Garns.
Das Flammaggregat 1 weist einen Mitnehmer 4 auf, der auf einem Seil 6 oder einem Riemen eines Changierelements montiert ist. Das Seil 6, bzw. der Riemen, ist ähnlich wie bei einem Riemenantrieb um zwei als Räder ausgebildete Umlenkungen 8 geführt. Zumindest eines der Räder ist mittels eines in Figur 1 nicht gezeigten Elektromotors angetrieben, so dass das Changierelement mit dem Mitnehmer 4 in der durch Pfeile eingezeichneten Richtung angetrieben umläuft.In the FIGS. 1a to 1c is an embodiment of a flame unit 1 according to the invention and its arrangement in a plane perpendicular to the yarn path of the yarn to be textured, shown schematically. The figures show the process of lateral deflection of a yarn 2 of the yarn from the yarn path for generating a flame during texturing of the yarn.
The flame unit 1 has a driver 4 which is mounted on a cable 6 or a belt of a traversing element. The cable 6, or the belt, is guided in a manner similar to a belt drive by two deflections 8 designed as wheels. At least one of the wheels is by means of a in FIG. 1 Not shown electric motor driven, so that the traversing element rotates driven with the driver 4 in the direction indicated by arrows.

Der Mitnehmer 4 weist einen Fadenführer 9 auf, mittels dessen durch Greifen des Fadens 2 beim Umlaufen des Mitnehmers 4 der Faden linear vom Fadenlauf weg bewegbar ist, d.h. der Faden 2 seitlich auslenkbar ist, wodurch eine Garnunterlieferung erzeugt werden kann. Dieses Auslenken des Fadens 2 aus dessen Fadenlauf ist in Figur 1b dargestellt. Der Faden 2 in seinem ursprünglichen Fadenlauf ist dabei als Kreispunkt mit weißem Kern dargestellt. Der Fadenführer 9 wird von der in der Figur rechten Kante des Mitnehmers 4 ausgebildet. Die seitliche Auslenkung des Fadens 2 ist in Figur 1b durch einen gestrichelten Pfeil symbolisiert. Der Mitnehmer 4 startet also zum Erzeugen einer Garnüberlieferung aus der in Figur 1a dargestellten Position in Richtung der in Figur 1b dargestellten Position. Dazwischen kommt er mit dem laufenden Garn, d.h. mit dem mit einer Garnlaufgeschwindigkeit eines Texturierprozesses am Flammaggregat 1 seitlich vorbeilaufenden Garn, in Kontakt und greift bzw. erfasst dieses zu dessen seitlicher Auslenkung in Richtung der Auslösemittel 10 (Auslöser).The driver 4 has a yarn guide 9, by means of which, by gripping the yarn 2 during rotation of the driver 4, the yarn is linearly movable away from the yarn path, ie the yarn 2 is laterally deflectable, whereby a Garnunterlieferung can be generated. This deflection of the thread 2 from the yarn path is in FIG. 1b shown. The thread 2 in its original threadline is shown as a circle point with a white core. The yarn guide 9 is formed by the right in the figure edge of the driver 4. The lateral deflection of the thread 2 is in FIG. 1b symbolized by a dashed arrow. The driver 4 thus starts to produce a Garnüberlieferung from in FIG. 1a position shown in the direction of FIG. 1b position shown. In between, he comes with the current yarn, ie with the Garnlaufgeschwindigkeit a texturing process on the flame unit 1 laterally passing yarn in contact and engages or detects this to the lateral deflection in the direction of the release means 10 (trigger).

Der Auslöser 10 bildet eine Rampe aus, die derart positioniert ist, dass der Faden 2 im Bereich eines Auslenkpunktes mittels des Fadenführers 9 auf die Rampe aufschiebbar ist. Dadurch wird das Garn, wie in Figur 1c dargestellt, vom Auslöser 10 über die den Fadenführer 9 ausbildende Kante des Mitnehmers 4 zu dessen Freigabe weggehoben, wodurch das Garn elastisch in seinen vor dem Auslenken vorhandenen Fadenlauf, also in die in Figur 1a dargestellte Ursprungsposition, zurückschnellen kann. Letzteres ist in Figur 1c durch einen gestrichelten Pfeil symbolisiert. Durch das Zurückschnellen wird also das Auslenken des Garns abrupt beendet und die Überlieferung des Garns erzeugt. Die Rampe wird also nicht vom Mitnehmer zusammen mit dem Fadenführer 9 mitbewegt, sondern ist ortsfest positioniert oder wird von einer Auslöserpositioniervorrichtung 50 gesteuert positioniert, also unter Variation des Abstandes der Rampe vom Fadenlauf z.B. hin- und her bewegbar. Die Auslöserpositioniervorrichtung 50 ist in den Figuren 1a und 1b durch einen Doppelpfeil symbolisch dargestellt.The trigger 10 forms a ramp which is positioned such that the thread 2 can be pushed onto the ramp in the region of a deflection point by means of the thread guide 9. This will cause the yarn, as in Figure 1c shown lifted from the trigger 10 on the yarn guide 9 forming edge of the driver 4 to its release, whereby the yarn elastic in its existing before deflecting yarn path, ie in the in FIG. 1a shown original position, can snap back. The latter is in Figure 1c symbolized by a dashed arrow. By rewinding, so the deflection of the yarn is stopped abruptly and produces the transmission of the yarn. The ramp is therefore not the driver along with the thread guide. 9 is moved, but is positioned stationary or is controlled by a trigger positioner 50 positioned so, for example, back and forth by varying the distance of the ramp from the yarn path movable. The trigger positioning device 50 is in the FIGS. 1a and 1b symbolically represented by a double arrow.

Abschließend wird der Mitnehmer 4 in seine in Figur 1a dargestellte Position zurück gefahren, um den Auslenkprozess anschließend zu wiederholen. Dies kann durch Umkehr der Bewegungsrichtung des Changierelements vorgenommen werden. Bevorzugt läuft das Changierelement mit dem Mitnehmer 4 jedoch einfach um die Umlenkungen um, so dass die Drehbewegung des Antriebes nicht umgekehrt werden muss.Finally, the driver 4 in his in FIG. 1a shown position back to repeat the Auslenkprozess then. This can be done by reversing the direction of movement of the traversing element. However, the traversing element with the carrier 4 preferably simply revolves around the deflections, so that the rotational movement of the drive does not have to be reversed.

In Figur 2 ist der Mitnehmer 4 des Flammaggregats aus den Figuren 1 in einer perspektivischen Darstellung gezeigt. Der Mitnehmer 4 weist eine Fadenführung auf, die von jeweils einer Kante 13,14 (Fadenführungskante) von zwei dreieckigen Fortsätzen am Mitnehmer 4 ausgebildet ist. Die in Figur 1 dargestellte Rampe des Auslösers kann so zwischen die Fadenführungskanten 13,14 eingreifen, um den Faden zu dessen Freigabe über den Fadenführer 9 des Mitnehmers wegzuheben.In FIG. 2 is the driver 4 of the flame unit from the FIGS. 1 shown in a perspective view. The driver 4 has a thread guide, which is formed by one edge 13,14 (thread guide edge) of two triangular projections on the driver 4. In the FIG. 1 illustrated ramp of the trigger can thus engage between the thread guide edges 13,14 to lift the thread to its release on the thread guide 9 of the driver.

In Figur 3 ist die Anordnung eines erfindungsgemäßen Flammaggregats 1 in einer erfindungsgemäßen Garnbearbeitungsmaschine mit einer Lufttexturierdüse 30 gezeigt. Die in einem Schutzgehäuse 32 angeordnete Lufttexturierdüse 30 ist im Fadenlauf 35 des Garns nach dem Flammaggregat 1 angeordnet. Die Fadenlaufrichtung des Garns ist mit einer eingezeichneten Pfeilspitze symbolisiert. Das erfindungsgemäße Flammaggregat 1 kann auch innerhalb des Schutzgehäuses 32 angeordnet sein.
Der Motor 40 des Flammaggregats 1 treibt eine der als Räder ausgebildeten Umlenkungen 8 derart an, dass der auf einem Seil 6, oder einem Riemen montierte Mitnehmer 4 in Richtung des dargestellten Pfeils senkrecht zum Fadenlauf 35 bewegt werden kann, so dass das Garn bei einer Bewegung des Mitnehmers 4, linear vom Fadenlauf 35 weg, seitlich ausgelenkt wird. Nachdem der Mitnehmer 4 bei seiner Bewegung den Auslöser 10 des Flammaggregats 1 erreicht hat wird das Garn durch den Auslöser 10 an einem Auslösepunkt freigegeben und kann in den in der Figur dargestellten Fadenlauf 35 zurückschnellen.
Der als Rampe ausgebildete Auslöser 10 ist an einer Auslöserpositioniervorrichtung befestigt, die einen Elektromotor 52 aufweist mit dem die Rampe z.B. über ein Stahlband 51 zu deren gesteuerter Verschiebbarkeit verbunden ist. Die Auslösemittel sind also elektromechanisch so verstellbar, dass in Auslenkungszyklen die Auslenklänge, d.h. der Abstand des Auslösepunktes zum Fadenlauf, variiert werden kann. Dabei kann die Frequenz der Auslenkung in einem Steuermodul frei programmierbar sein und je Auslenkungszyklus variieren. Die als Fadenauswerfer dienende Rampe wird also, z.B. ähnlich wie bei einem Bandgreifer einer Webmaschine, über das mit dem Elektromotor 52 verbundene Stahlband 51 bewegt.In FIG. 3 the arrangement of a flame unit 1 according to the invention in a yarn processing machine according to the invention with an air-texturing nozzle 30 is shown. The arranged in a protective housing 32 Lufttexturierdüse 30 is arranged in the yarn path 35 of the yarn after the flame unit 1. The thread running direction of the yarn is symbolized by an arrowhead. The flame unit 1 according to the invention can also be arranged inside the protective housing 32.
The motor 40 of the flame unit 1 drives one of the deflectors 8 designed as wheels in such a way that on a rope 6, or a belt mounted driver 4 in the direction of the arrow shown can be moved perpendicular to the yarn path 35, so that the yarn during a movement of the driver 4, linearly away from the yarn path 35, is deflected laterally. After the driver 4 has reached the trigger 10 of the flame unit 1 during its movement, the yarn is released by the trigger 10 at a trigger point and can snap back into the yarn path 35 shown in the figure.
The shutter 10 formed as a ramp is attached to a trigger positioner having an electric motor 52 to which the ramp is connected, for example, via a steel belt 51 to its controlled displaceability. The release means are so electromechanically adjustable so that in deflection cycles the Auslenklänge, ie the distance of the trigger point to the threadline, can be varied. In this case, the frequency of the deflection in a control module can be freely programmable and vary per deflection cycle. The serving as a thread ejector ramp is so, for example, similar to a band looper of a loom, moved over the connected to the electric motor 52 steel strip 51.

Vorgeschlagen wird eine Vorrichtung 1 zum Erzeugen von Effektgarnen beim Texturieren von Garn durch Erzeugen von Flammen durch kurzzeitige Garnüberlieferung, mit einem motorisch angetrieben linear vom Fadenlauf 35 weg bewegbaren Mitnehmer 4, wobei der Mitnehmer 4 einen Fadenführer 9 aufweist, um durch Greifen eines Fadens 2 des Garns mit dem Fadenführer 9 und seitliches Auslenken des Garns aus dessen Fadenlauf 35 eine Garnunterlieferung zu erzeugen. Dabei sind Auslösemittel 10 vorgesehen, eingerichtet, den Faden 2 an einem seitlich vom Fadenlauf 35 des Fadens 2 liegenden Auslenkpunkt aus dem Fadenführer 9 freizugeben, um die Garnüberlieferung durch abruptes Beenden der Auslenkung des Garns zu erzeugen.
Die Auslösemittel 10 bilden eine Rampe aus, wobei die Rampe derart positioniert ist, dass der Faden 2 im Bereich des Auslenkpunktes mittels des Fadenführers 9 auf die Rampe aufschiebbar ist, wobei der Faden 2 durch das Aufschieben zu dessen Freigabe aus dem Fadenführer 9 heraushebbar und/oder über den Fadenführer 9 weghebbar ist.
Die Vorrichtung funktioniert losgelöst von der Fadenspannung.Proposed is a device 1 for producing effect yarns in the texturing of yarn by generating flames by short-term Garnüberlieferung, with a motor driven linearly movable away from the yarn path 35 driver 4, wherein the driver 4 has a yarn guide 9, by gripping a thread 2 of Yarn with the yarn guide 9 and lateral deflection of the yarn from the yarn path 35 to produce a Garnunterlieferung. In this case, release means 10 are provided, adapted to release the yarn 2 at a laterally from the yarn path 35 of the yarn 2 deflection point from the yarn guide 9 to produce the Garnüberlieferung by abrupt termination of the deflection of the yarn.
The release means 10 form a ramp, wherein the ramp is positioned such that the thread 2 in the region of the deflection point by means of the thread guide. 9 can be pushed onto the ramp, wherein the thread 2 can be lifted out of the thread guide 9 by being pushed on to release it and / or can be lifted away via the thread guide 9.
The device works detached from the thread tension.

Die Erfindung beschränkt sich nicht auf die vorstehend angegebenen Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten denkbar, welche auch bei grundsätzlich anders gearteter Ausführung von den Merkmalen der Erfindung Gebrauch machen.The invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

Claims (7)

  1. A device (1) for the production of effect yarns during the texturing of yarn by creating slubs through short-duration yarn overfeed, having a motor-driven carrier (4), movable linearly away from the thread running path (35), wherein the carrier (4) comprises a thread guide (9), in order to generate a yarn underfeed by taking up a thread (2) of the yarn with the thread guide (9) and deflecting the yarn laterally from its running path (35),
    characterised in that
    release means (10) are provided, designed to release the thread (2) from the thread guide (9) at a deflection point disposed laterally of the running path (35) of the thread (2) in order to generate the yarn overfeed by abrupt termination of the deflection of the yarn,
    characterised in that
    the release means (10) form a ramp, the ramp being positioned in such a manner that the thread (2) in the region of the deflection point can be pushed onto the ramp by means of the thread guide (9), wherein by pushing the thread onto the ramp for its release the thread (2) can be lifted out of the thread guide (9) and/or lifted away above the thread guide (9).
  2. A device according to claim 1,
    characterised in that
    the ramp can be displaced in a controlled manner by a control unit using a release positioning device (50) for varying the position of the deflection point.
  3. A device according to one of the claims 1 to 2,
    characterised in that
    the carrier (4) is mounted on a traverse motion element, preferably in the form of a cable (6) or a belt, wherein for preferably controlled motor drive (35) of the carrier (4), the traverse motion element is designed to revolve around guide pulleys (8).
  4. A device according to any one of the claims 1 to 3,
    characterised in that
    the thread guide (9) is formed by two thread guide edges (13, 14) on the carrier (4), the release means (10) being designed to engage between the thread guide edges (13, 14) for release of the thread (2).
  5. A device according to any one of the claims 1 to 5,
    characterized in that a control means is provided, designed to control a motor drive (40) of the carrier (4) in such a way that slubs of predetermined or substantially random size and/or having a predetermined spacing or substantially random spacing on the yarn are created.
  6. A yarn processing machine having a texturing unit (30) and a device (1) according to any one of the preceding claims, the device (1) being arranged upstream of the texturing unit (30) in the running path (35) of a yarn to be processed in the texturing unit (30).
  7. A yarn processing machine according to claim 6,
    characterised in that
    the texturing unit comprises an air texturing jet (30), the device preferably being arranged inside a protective housing (32) of the air texturing jet (30).
EP08802063A 2007-09-12 2008-09-12 Device for the production of fancy yarn Active EP2191050B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08802063A EP2191050B1 (en) 2007-09-12 2008-09-12 Device for the production of fancy yarn

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/EP2007/007931 WO2009036774A1 (en) 2007-09-12 2007-09-12 Apparatus for producing fancy yarns
PCT/EP2008/007503 WO2009033697A1 (en) 2007-09-12 2008-09-12 Device for the production of fancy yarn
EP08802063A EP2191050B1 (en) 2007-09-12 2008-09-12 Device for the production of fancy yarn

Publications (2)

Publication Number Publication Date
EP2191050A1 EP2191050A1 (en) 2010-06-02
EP2191050B1 true EP2191050B1 (en) 2012-08-29

Family

ID=42126050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08802063A Active EP2191050B1 (en) 2007-09-12 2008-09-12 Device for the production of fancy yarn

Country Status (1)

Country Link
EP (1) EP2191050B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109518330B (en) * 2017-09-20 2024-05-07 常山乔杉纺织有限公司 Yarn pulling device of spinning frame for producing bunchy yarn

Also Published As

Publication number Publication date
EP2191050A1 (en) 2010-06-02

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