EP0620872B1 - Process and device for texturing thermoplastic threads - Google Patents

Process and device for texturing thermoplastic threads Download PDF

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Publication number
EP0620872B1
EP0620872B1 EP93924490A EP93924490A EP0620872B1 EP 0620872 B1 EP0620872 B1 EP 0620872B1 EP 93924490 A EP93924490 A EP 93924490A EP 93924490 A EP93924490 A EP 93924490A EP 0620872 B1 EP0620872 B1 EP 0620872B1
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EP
European Patent Office
Prior art keywords
thread
guide
plug
draw
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.)
Expired - Lifetime
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EP93924490A
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German (de)
French (fr)
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EP0620872A1 (en
Inventor
Peter Grossenbacher
Jörg Maier
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0620872A1 publication Critical patent/EP0620872A1/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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/04—Guiding surfaces within slots or grooves
    • 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 is in the field of processing threads made of a thermoplastic material and relates to a method and a device according to the preambles of the corresponding independent claims for the continuous texturing of threads made of a thermoplastic material.
  • Devices for the continuous texturing of thermoplastic threads are known, for example, from European Patent No. 310890 by the same applicant.
  • the devices described essentially consist of a texturing nozzle with a conveying channel and a nozzle outlet opening and a drivable plug conveyor roller with a pair of lateral guide means running around its circumference, for example a pair of needles (needle roller).
  • the texturing nozzle is arranged relative to the plug conveyor roller in such a way that the conveyor channel or at least the end of the conveyor channel carrying the nozzle outlet opening runs essentially tangentially to the plug conveyor roller and projects with the nozzle outlet opening between the rows of needles.
  • the thread runs through the conveyor channel against the nozzle outlet opening, by moving from a fluid under pressure through the delivery channel driven and heated at the same time.
  • the pumped medium relaxes and the thread impacts a plug that has formed between the rows of needles from the thread that has already exited the nozzle outlet opening.
  • the plug is conveyed away from the nozzle outlet opening at a plug speed by the rotary movement of the plug conveyor roller (needle roller), the plug speed being less than the thread speed in the conveying channel.
  • the plug runs from the nozzle outlet opening over a sector (plug sector) of the plug conveyor roller, guided by the rows of needles and slightly spaced from the circumferential surface of the plug conveyor roller, and is at the end of this sector by a plug detaching agent, for example a stationary detaching wedge, from the plug conveyor roller to a cooling element, for example, a cooling drum.
  • a plug detaching agent for example a stationary detaching wedge
  • the texturing nozzle usually having a plurality of conveying channels running parallel to one another and the plug conveying roller having a plurality of pairs of lateral guide means, for example pairs of needles running parallel to one another.
  • thermoplastic threads in such a way that the drawing in, in particular the drawing in of a plurality of parallel ones Threads, easier and safer.
  • the operation should not be influenced in any way.
  • thermoplastic thread and in particular for drawing in the still untextured thread when starting the device are described.
  • Methods and devices for several threads can be easily derived from this, since the thread / plug runs are parallel and with the same predetermined distances.
  • Figures 1a to 1c show an exemplary embodiment of a device for continuous texturing in different phases: Figure 1a in the operating phase, Figure 1b in a first pull-in phase and Figure 1c in a second pull-in phase.
  • the device essentially consists of a texturing nozzle 1, a plug conveyor roller, for example a needle roller 2 (described, for example, in European Patent No. 310890 by the same applicant), a plug detaching agent 3, for example a detaching wedge 31 and a detaching channel 32 adjoining it, and a plug coolant, for example a cooling drum 4, which can rotate in the two directions indicated (drawn and dashed).
  • a thread guide 5 there is a thread guide 5.
  • the figures represent Cuts along the thread / plug course.
  • the thread guide is also cut accordingly (section line II-II in Figure 4).
  • the texturing nozzle usually consists of two parts 1.1 and 1.2, advantageously the part 1.1 arranged closer to the needle roller 2 being stationary, the other part being movable, such that the texturing nozzle is suitable for the Feed can be opened.
  • FIG . 1 a shows the course of the thread / plug during operation.
  • the thread F runs through the closed texturing nozzle 1.
  • the thread leaves the texturing nozzle 1 at the nozzle outlet opening 11.
  • this opening which is shown as a dot-dash line between the lateral guide means 21 (pairs of needles) Line along the outer circumference thereof) of the needle roller 2, a plug P is formed which is guided through the pairs of needle rows in such a way that it does not touch the base of the needle roller.
  • the plug is conveyed further by the rotation of the needle roller 2, while it is held laterally by the rows of needles 21.
  • the detaching wedge 31 and the detaching channel 32 (if one is provided) move the plug P away from the needle roller 2 against the cooling drum 4, this either in a sense opposite to the direction of rotation of the plug conveyor roller (variant shown in solid lines) or in the same direction of rotation as that Plug conveyor roller (variant shown in dashed lines) can rotate.
  • the figure also shows the feed guide 5, which has no function during operation and whose function and configuration will be described in more detail in connection with FIGS. 1b and 1c.
  • the illustrated, exemplary embodiment of the thread guide is on Fixed plug channel 32 and has a corresponding plug passage opening 52 or recess for the passage of the plug.
  • a single thread F can be textured, as shown in the figure, or, as is customary, there are further threads parallel to the thread / plug course shown (in the figure above and / or below the paper plane) / Graft gradients arranged.
  • Figure 1b shows a first pull-in phase.
  • the thread F is placed in the open texturing nozzle 1 with the aid of a suction gun.
  • the thread lies against a first thread guide 12 arranged at the entrance of the texturing nozzle, which is designed, for example, as a guide pin with a groove for the thread, the groove being aligned with the conveying channel in the texturing nozzle.
  • the thread has a course F.1, for example.
  • the thread is moved against the plug feed roller 2 with the aid of the suction gun.
  • appropriate guide means must ensure that the thread has a course with which it does not come into conflict with the needle rows.
  • This guiding function is performed on the one hand by the first thread guide 12 and, for example, by the stationary thread guide 5.
  • the thread guide 5 has a guide slot arranged parallel to the pair of rows of needles and centered thereon.
  • the thread guide is arranged in such a way that the thread runs through this slot when it has a course F.2 or is moved closer to the plug feed roller.
  • the thread course F.1 transversely to the thread movement (out of the paper plane) from the first thread guide 12 depends only on the position of the movable suction gun, i.e. is not precisely determined
  • the thread course F.2 between the thread guide 12 and the feed guide 5 is exact determines and runs precisely aligned to the delivery channel in the texturing nozzle and the plug channel formed by the rows of needles.
  • the guide slot of the thread guide 5 extends somewhat over this tangent on its side facing away from the plug feed roller.
  • FIG. 1c now shows a second drawing-in phase, which follows the first and in which the thread is moved further against the cooling drum 4.
  • the texturing nozzle Shortly before the thread is effectively placed on the cooling drum (thread courses F.3 for the rotational direction of the cooling drum being pulled out, and F.5 for the dashed direction of rotation of the cooling drum) and being braked by the latter, the texturing nozzle has to be closed, the conveying medium switched on and with an accumulation aid for example, the formation of a plug can be initiated against an air stream directed against the nozzle outlet opening.
  • the thread is guided between the plug conveyor roller 2 and the cooling drum 4 and then placed on the cooling drum, in accordance with the thread course F.3. It cannot be prevented that the thread is placed further than absolutely necessary around the plug conveyor roller 2 (thread course F.4). So that the thread cannot be damaged by the plug detachment means 3 during this movement, it is advantageous to limit this movement with a corresponding second thread guide 13.
  • the thread guide 13, like the thread guide 12, is advantageously rod-shaped and provided with a groove for the thread.
  • the thread guide 13 can also be attached directly below the plug channel 32.
  • the thread only has to be moved up to a thread course F.5 and be guided through the guide slot of the thread guide during this movement.
  • the thread guide 5 that it must be designed and arranged such that, together with the first thread guide 12, it guides the untextured thread parallel to and in the middle of the conveying channel and plug channel for all possible thread courses during the drawing in, where the thread runs through the area of the rows of needles; for the device shown in FIGS. 1a to 1c that: for cooling drum rotation according to the solid arrow (clockwise) for all thread courses between the thread courses F.2 and F.4, for cooling drum rotation according to the dashed arrow (counterclockwise) for all thread courses between the thread courses F.2 and F.5.
  • the thread guide 5 shown in FIG. 1 extends stationary around the circumference of the needle roller 2 and is spaced from it. It is provided at least between the points 51 (intersection with the thread course F.2) and the plug passage opening 52 with a guide slot or, for several threads, with corresponding guide slots which run parallel and with the intended thread spacing and which are aligned with the conveying and plug channels.
  • the stationary thread guide 5 will be described in detail in connection with FIGS. 3 and 4.
  • FIGS. 1a to 1c how the untextured thread moves clockwise from a thread course F.1 via F.2 and possibly F.4 to a thread course F.3 during the pulling-in process with cooling drum rotation and thereby always in the guide slot of the pulling thread guide 5 to be led. From such an idea, it can also be easily deduced that instead of a stationary thread guide 5 with a guide slot, as shown in FIGS. 1a to 1c, a thread guide means which is arranged parallel to the axis of the needle roller and essentially during the threading process moved from the point 51 (FIG. 1b) to the position of the second thread guide 13, can be used.
  • FIG. 2 shows very schematically such a moving thread guide means, the device, which is not shown completely, should be essentially the same as that shown in Figures 1a to 1c.
  • the moving thread guide means is a rod-shaped feed thread guide 6, which is arranged parallel to the axis of the plug conveyor roller 2 and moves during the pulling-in process from at least one point 51.1, which corresponds to point 51 of FIG. 1b, to a point 13.1 (arrow E), the Position 13.1 essentially corresponds to the position of the second thread guide 13 in FIG. 1c. During this movement, the thread guide 6 maintains its position parallel to the axis of the plug conveyor roller.
  • the movable thread guide 6, the design of which is described in connection with FIG. 5, is operatively connected for its movement with a corresponding drive and advantageously a corresponding control (neither of which is shown).
  • FIGS. 3 and 4 show in more detail a stationary thread guide 5, as has already been shown and described for the exemplary embodiment according to FIGS. 1a to 1c, for which reason the same reference numbers are also used.
  • Parts of the device for the continuous texturing of thermoplastic threads with the thread guide 5 are shown in FIG. 3 cut along the thread / plug course (section line II-II of FIG. 4).
  • FIG. 4 shows the feed thread guide 5 as a top view from the plug feed roller.
  • the stationary thread guide 5 has a guide slot 58 which extends at least from the point 51 (intersection with the thread course F.2) to the plug passage opening 52. It also has an inlet area 55, which is on the of the Plug conveyor roller 2 is arranged facing away from the thread run F.2 and in which the guide slot 58 extends to an inlet opening 54. The function of the inlet area is to guide the thread into the guide slot 58.
  • the thread guide 5 also has a guide area 56 and a plug passage area 57.
  • the guide slot 58 extends over the length of the guide area 56 and widens into an opening 52 in the plug passage area 57.
  • a fastening area 59 can adjoin the plug passage area 57.
  • thread paths are possible in which the thread runs through the plug passage opening 52 (for example thread path F.4).
  • the thread is not precisely guided in this opening.
  • the thread guide has a bend at point 53 which approaches the needle roller in such a way that the thread there in the thread slot according to F.4 in the guide slot 58 is led.
  • the thread guide 5 does not have such a bend, but runs essentially in a straight line over the area 53 (shown in dash-dot lines), it is advantageous to avoid a thread course according to F.4, for example by a corresponding position of the second thread guide (13.2, thread course F.6 ).
  • the second thread guide has a groove for the thread and in turn thus contributes to guiding the thread transversely to the thread / plug course of the operation.
  • Feed thread guides for devices for texturing several parallel threads have a corresponding number of parallel guide slots.
  • FIG. 5 shows in the same top view as FIG. 4 an exemplary embodiment for a movable thread guide 6, for example for an application according to FIG. 2.
  • the movable thread guide could also replace the stationary thread guide in FIG. FIG. 5 is aligned with FIG. 3 in such a way that the movable thread guide 6 assumes the position that it essentially assumes at the beginning of the pulling-in process. It is moved along the arrow E during the pulling-in process.
  • the movable thread guide 6 has, for example, a guide pin 60 and an inlet part 61 (analogous to the inlet area 55 of the thread guide 5, FIG. 4).
  • the thread course F.2 cuts the thread guide in its initial position at point 51.1.
  • a guide pin which has a guide groove running around its circumference for the thread.
  • the movable thread guide for a device for texturing several threads is correspondingly wider and equipped with several thread guides.
  • FIG. 6 now shows parts of another exemplary embodiment of the device for the continuous texturing of a thermoplastic thread, which differs from the previously described embodiments essentially by the relative arrangement of the needle roller 2 and the cooling drum 4, in particular the plug essentially horizontally from the Plug conveying roller directed and sucked directly onto the cooling drum without the plug conveying channel through the air sucked radially into the cooling drum for cooling and for holding the plug.
  • the figure serves to illustrate that the method according to the invention and the corresponding one Device allows various such arrangements, but the thread guide must be adapted or supplemented.
  • the adapted stationary feed thread guide 5.1 guides the thread between a thread course F.2 and a thread course F.7. If the thread is placed further around the plug conveyor roller, which is only necessary for a cooling drum operation according to the solid arrow, it passes through the plug passage opening 52 and is not guided there. On the other side of the plug passage opening (thread course F.4), a second thread guide 13.3 (for example a rod with guide grooves) can take the lead or the guide slot can continue, so that guidance is again ensured.
  • the plug conveyor roller 2 can be equipped with appropriate guide means, as is illustrated by FIG. 7.
  • FIG. 7 shows a schematic radial section (section line II, FIG. 6) through a needle roller 2 (only partially shown) with a plug channel delimited by a pair of needle rows 21.
  • a guide groove 22 runs in the center of the plug channel, which guides the non-textured thread when it is drawn in.
  • the figure also shows a detaching wedge 31.
  • the needle roller according to FIG. 7 can be used, for example, for the application outlined in FIG. 6 with a cooling roller rotation in accordance with the dashed arrow, which means that thread guidance when pulling in a thread course F.2 to to a thread course F.4 is guaranteed.
  • FIG. 8 shows a further embodiment of the device according to the invention in the same representation as FIG. 6.
  • This embodiment also differs essentially from those already described in the relative arrangement of the device parts.
  • the plug sector that is to say the needle roller sector, and the part of the plug profile is very short, such that the profile of the plug P takes the form of a vertical tangent to the needle roller 2.
  • the individual elements essentially correspond to those in FIG. 6 and therefore do not have to be described any longer.
  • a thread course F.2 which corresponds to the tangent from the first thread guide 12 to the rows of needles of the needle roller 2
  • a thread course F.4 which can correspond to one when pulled in with a cooling drum rotation in the clockwise direction (solid arrow)
  • one Thread course F.5, which corresponds to counterclockwise for a cooling drum operation (dashed arrow). It can be seen from the figure that, depending on the exact position and diameter of the cooling drum 4, the guide slot in the feed thread guide 5.2 must extend over the point 51 (intersection of the thread guide with the tangent from the first thread guide to the rows of needles) when the thread course F.5 this requires.

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  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

So that several non-textured threads may be more easily and safely drawn in when the texturing device is started, a drawing-in thread guide (5) guides the thread(s) to be drawn into the transport channels of the texturing nozzle (1) and into the wad channels of the wad transport roller (2) in a sensibly parallel direction to said channels and at a predetermined distance from each other.

Description

Die Erfindung liegt auf dem Gebiete der Verarbeitung von Fäden aus einem thermoplastischen Material und betrifft ein Verfahren und eine Vorrichtung gemäss den Oberbegriffen der entsprechenden, unabhängigen Patentansprüche zum kontinuierlichen Texturieren von Fäden aus einem thermoplastischen Material.The invention is in the field of processing threads made of a thermoplastic material and relates to a method and a device according to the preambles of the corresponding independent claims for the continuous texturing of threads made of a thermoplastic material.

Vorrichtungen zum kontinuierlichen Texturieren von thermoplastischen Fäden sind bekannt beispielsweise aus der europäischen Patentschrift Nr. 310890 derselben Anmelderin. Die beschriebenen Vorrichtungen bestehen im wesentlichen aus einer Texturierdüse mit einem Förderkanal und einer Düsenaustrittsöffnung und einer antreibbaren Pfropfenförderwalze mit einem um ihren Umfang verlaufenden Paar von seitlichen Führungsmitteln, beispielsweise einem Nadelreihenpaar (Nadelwalze). Die Texturierdüse ist relativ zur Pfropfenförderwalze derart angeordnet, dass der Förderkanal oder wenigstens das die Düsenaustrittsöffnung tragende Ende des Förderkanales im wesentlichen tangential an die Pfropfenförderwalze verläuft und mit der Düsenaustrittsöffnung zwischen die Nadelreihen ragt Im Betrieb der Texturiervorrichtung läuft der Faden durch den Förderkanal gegen die Düsenaustrittsöffnung, indem er von einem unter Druck durch den Förderkanal fliessenden Fördermedium getrieben und gleichzeitig erhitzt wird. Beim Austritt aus der Düsenaustrittsöffnung entspannt sich das Fördermedium und der Faden prallt auf einen Pfropfen auf, der sich zwischen den Nadelreihen aus dem Faden gebildet hat, der bereits aus der Düsenaustrittsöffnung ausgetreten ist. Der Pfropfen wird durch die Drehbewegung der Pfropfenförderwalze (Nadelwalze) mit einer Pfropfengeschwindigkeit von der Düsenaustrittsöffnung weggefördert, wobei die Pfropfengeschwindigkeit kleiner ist als die Fadengeschwindigkeit im Förderkanal. Der Pfropfen läuft von der Düsenaustrittsöffnung über einen Sektor (Pfropfensektor) der Pfropfenförderwalze, geführt von den Nadelreihen und leicht beabstandet von der Umfangsfläche der Pfropfenförderwalze und wird am Ende dieses Sektors durch ein Propfenablösemittel, beispielsweise durch einen stationären Ablösekeil, von der Pfropfenförderwalze auf ein Kühlelement, beispielsweise eine Kühltrommel geführt.Devices for the continuous texturing of thermoplastic threads are known, for example, from European Patent No. 310890 by the same applicant. The devices described essentially consist of a texturing nozzle with a conveying channel and a nozzle outlet opening and a drivable plug conveyor roller with a pair of lateral guide means running around its circumference, for example a pair of needles (needle roller). The texturing nozzle is arranged relative to the plug conveyor roller in such a way that the conveyor channel or at least the end of the conveyor channel carrying the nozzle outlet opening runs essentially tangentially to the plug conveyor roller and projects with the nozzle outlet opening between the rows of needles. In operation of the texturing device, the thread runs through the conveyor channel against the nozzle outlet opening, by moving from a fluid under pressure through the delivery channel driven and heated at the same time. As it exits the nozzle outlet opening, the pumped medium relaxes and the thread impacts a plug that has formed between the rows of needles from the thread that has already exited the nozzle outlet opening. The plug is conveyed away from the nozzle outlet opening at a plug speed by the rotary movement of the plug conveyor roller (needle roller), the plug speed being less than the thread speed in the conveying channel. The plug runs from the nozzle outlet opening over a sector (plug sector) of the plug conveyor roller, guided by the rows of needles and slightly spaced from the circumferential surface of the plug conveyor roller, and is at the end of this sector by a plug detaching agent, for example a stationary detaching wedge, from the plug conveyor roller to a cooling element, for example, a cooling drum.

Zum gleichzeitigen, parallelen Texturieren einer Mehrzahl von Fäden werden mehrere Vorrichtungen wie beschrieben nebeneinander angeordnet, wobei die Texturierdüse üblicherweise mehrere parallel zueinander verlaufende Förderkanäle und die Pfropfenförderwalze mehrere, parallel zueinander verlaufende Paare von seitlichen Führungsmitteln, beispielsweise Nadelreihenpaare, aufweist.For the simultaneous, parallel texturing of a plurality of threads, a plurality of devices are arranged next to one another as described, the texturing nozzle usually having a plurality of conveying channels running parallel to one another and the plug conveying roller having a plurality of pairs of lateral guide means, for example pairs of needles running parallel to one another.

Es zeigt sich nun, dass das Starten derartiger Anordnungen, insbesondere das Einziehen der Fäden in Vorrichtungen, in denen mehrere Fäden parallel texturiert werden, erhöhte Anforderungen an die Sorgfalt des Personals stellt.It has now been shown that starting such arrangements, in particular pulling the threads into devices in which several threads are textured in parallel, places increased demands on the care of the personnel.

Deshalb ist es die Aufgabe der Erfindung, Verfahren und Vorrichtung zum kontinuierlichen Texturieren von thermoplastischen Fäden derart zu verbessern, dass das Einziehen, insbesondere das Einziehen von mehreren parallelen Fäden, einfacher und sicherer wird. Dabei soll der Betrieb in keiner Weise beeinflusst werden.It is therefore the object of the invention to improve methods and apparatus for the continuous texturing of thermoplastic threads in such a way that the drawing in, in particular the drawing in of a plurality of parallel ones Threads, easier and safer. The operation should not be influenced in any way.

Diese Aufgabe wird gelöst durch das Verfahren und die Vorrichtung gemäss den entsprechenden, unabhängigen Patentansprüchen. Verfahren und Vorrichtung werden anhand der folgenden Figuren detailliert beschrieben. Dabei zeigen:

Figuren 1a bis c
eine beispielhafte Ausführungsform der erfindungsgemässen Vorrichtung zum kontinuierlichen Texturieren eines Fadens, als sehr schematischer Schnitt entlang dem Faden/Pfropfen-Verlauf zur Erläuterung des erfindungsgemässen Verfahrens unter Anwendung eines stationären Einzugsfadenführers mit einem Führungsschlitz (Figur 1a: Betrieb; Figur 1b: erste Einziehphase; Figur 1c: zweite Einziehphase);
Figur 2
dasselbe wie Figuren 1a bis 1c, unter Anwendung eines beweglichen Einzugsfadenführers;
Figur 3
einen Teil der Ausführungsform gemäss Figuren 1a bis 1c mehr detailliert, in derselben Darstellungsweise;
Figur 4
eine Draufsicht auf einen beispielhaften, stationären Einzugsfadenführer für die Vorrichtung gemäss Figuren 1a bis 1c;
Figur 5
eine Draufsicht auf einen beispielhaften, beweglichen Einzugsfadenführer für die Vorrichtung gemäss Figur 2;
Figur 6
eine weitere, beispielhafte Ausführungsform der erfindungsgemässen Vorrichtung, ebenfalls entlang einem Faden/Pfropfen-Verlauf geschnitten;
Figur 7
Schnitt (gemäss Schnittlinie I-I in Figur 6) quer zum Fadenverlauf durch beispielhafte Ausführungsformen von Nadelwalze und Ablösemittel mit Fadenführungsrinnen;
Figur 8
eine weitere Ausführungsform der erfindungsgemässen Vorrichtung in derselben Darstellungsweise wie Figuren 3 und 6.
This object is achieved by the method and the device according to the corresponding, independent patent claims. The method and the device are described in detail with reference to the following figures. Show:
Figures 1a to c
an exemplary embodiment of the device according to the invention for the continuous texturing of a thread, as a very schematic section along the thread / plug path to explain the method according to the invention using a stationary thread guide with a guide slot (Figure 1a: operation; Figure 1b: first drawing-in phase; Figure 1c : second pull-in phase);
Figure 2
the same as Figures 1a to 1c, using a movable thread guide;
Figure 3
a part of the embodiment according to Figures 1a to 1c in more detail, in the same representation;
Figure 4
a plan view of an exemplary, stationary thread guide for the device according to Figures 1a to 1c;
Figure 5
a plan view of an exemplary, movable thread guide for the device according to Figure 2;
Figure 6
a further exemplary embodiment of the device according to the invention, likewise cut along a thread / plug course;
Figure 7
Section (according to section line II in FIG. 6) transverse to the thread course through exemplary embodiments of needle roller and release means with thread guide grooves;
Figure 8
a further embodiment of the device according to the invention in the same representation as Figures 3 and 6.

In den folgenden Beschreibungen werden Verfahren und Vorrichtungen zum Texturieren von einem thermoplastischen Faden und insbesondere zum Einziehen des noch untexturierten Fadens beim Starten der Vorrichtung beschrieben. Verfahren und Vorrichtungen für mehrere Fäden lassen sich daraus leicht ableiten, da die Faden/Pfropfenverläufe parallel und mit gleichen vorgegebenen Abständen geführt sind.In the following descriptions, methods and devices for texturing a thermoplastic thread and in particular for drawing in the still untextured thread when starting the device are described. Methods and devices for several threads can be easily derived from this, since the thread / plug runs are parallel and with the same predetermined distances.

Figuren 1a bis 1c zeigen eine beispielhafte Ausführungsform einer Vorrichtung zum kontinuierlichen Texturieren in verschiedenen Phasen: Figur 1a in der Betriebsphase, Figur 1b in einer ersten Einziehphase und Figur 1c in einer zweiten Einziehphase. Die Vorrichtung besteht im wesentlichen aus einer Texturierdüse 1, einer Pfropfenförderwalze, beispielsweise einer Nadelwalze 2 (beschrieben beispielsweise in der europäischen Patentschrift Nr. 310890 derselben Anmelderin), einem Pfropfenablösemittel 3, beispielsweise einem Ablösekeil 31 und einem daran anschliessenden Ablösekanal 32, und einem Pfropfenkühlmittel, beispielsweise einer Kühltrommel 4, die in den beiden angegebenen Richtungen (ausgezogen und gestrichelt) rotieren kann. Dazu kommt erfindungsgemäss ein Einzugsfadenführer 5. Die Figuren stellen Schnitte längs dem Faden/Pfropfenverlauf dar. Auch der Einzugsfadenführer ist entsprechend geschnitten (Schnittlinie II-II in Figur 4). Figures 1a to 1c show an exemplary embodiment of a device for continuous texturing in different phases: Figure 1a in the operating phase, Figure 1b in a first pull-in phase and Figure 1c in a second pull-in phase. The device essentially consists of a texturing nozzle 1, a plug conveyor roller, for example a needle roller 2 (described, for example, in European Patent No. 310890 by the same applicant), a plug detaching agent 3, for example a detaching wedge 31 and a detaching channel 32 adjoining it, and a plug coolant, for example a cooling drum 4, which can rotate in the two directions indicated (drawn and dashed). In addition, according to the invention there is a thread guide 5. The figures represent Cuts along the thread / plug course. The thread guide is also cut accordingly (section line II-II in Figure 4).

Die Texturierdüse besteht üblicherweise, wie in der europäischen Patentschrift Nr. 39763 derselben Anmelderin beschrieben, aus zwei Teilen 1.1 und 1.2, wobei vorteilhafterweise der näher an der Nadelwalze 2 angeordnete Tei 1.1 stationär, der andere Teil beweglich ist, derart, dass die Texturierdüse für das Einziehen geöffnet werden kann.As described in European Patent No. 39763 by the same applicant, the texturing nozzle usually consists of two parts 1.1 and 1.2, advantageously the part 1.1 arranged closer to the needle roller 2 being stationary, the other part being movable, such that the texturing nozzle is suitable for the Feed can be opened.

Figur 1a stellt den Faden/Pfropfen-Verlauf im Betrieb dar. Der Faden F läuft durch die geschlossene Texturierdüse 1. Der Faden verlässt die Texturierdüse 1 an der Düsenaustrittsöffnung 11. Unmittelbar ausserhalb dieser Öffnung, die zwischen die seitlichen Führungsmittel 21 (Nadelreihenpaare, als strichpunktierte Linie entlang deren äusserem Umfang dargestellt) der Nadelwalze 2 reicht, bildet sich ein Pfropfen P, der durch die Nadelreihenpaare derart geführt wird, dass er den Grund der Nadelwalze nicht berührt. Der Pfropfen wird durch die Rotation der Nadelwalze 2 weitergefördert, während er durch die Nadelreihen 21 seitlich gehalten wird. Der Ablösekeil 31 und der Ablösekanal 32 (wenn ein solcher vorgesehen ist) bewegen den Pfropfen P von der Nadelwalze 2 weg gegen die Kühltrommel 4, wobei diese entweder in einem dem Drehsinn der Pfropfenförderwalze entgegengesetzten Sinn (ausgezogen dargestellte Variante) oder im gleichen Drehsinn wie die Pfropfenförderwalze (gestrichelt dargestellte Variante) rotieren kann. FIG . 1 a shows the course of the thread / plug during operation. The thread F runs through the closed texturing nozzle 1. The thread leaves the texturing nozzle 1 at the nozzle outlet opening 11. Immediately outside this opening, which is shown as a dot-dash line between the lateral guide means 21 (pairs of needles) Line along the outer circumference thereof) of the needle roller 2, a plug P is formed which is guided through the pairs of needle rows in such a way that it does not touch the base of the needle roller. The plug is conveyed further by the rotation of the needle roller 2, while it is held laterally by the rows of needles 21. The detaching wedge 31 and the detaching channel 32 (if one is provided) move the plug P away from the needle roller 2 against the cooling drum 4, this either in a sense opposite to the direction of rotation of the plug conveyor roller (variant shown in solid lines) or in the same direction of rotation as that Plug conveyor roller (variant shown in dashed lines) can rotate.

In der Figur ist ebenfalls der Einzugsführer 5 dargestellt, der während dem Betrieb keine Funktion hat und dessen Funktion und Ausgestaltung im Zusammenhang mit den Figuren 1b und 1c noch genauer beschrieben werden soll. Die dargestellte, beispielhafte Ausführungsform des Fadenführers ist am Pfropfenführungskanal 32 befestigt und weist für den Durchtritt des Pfropfens eine entsprechende Pfropfendurchtrittsöffnung 52 oder Ausnehmung auf.The figure also shows the feed guide 5, which has no function during operation and whose function and configuration will be described in more detail in connection with FIGS. 1b and 1c. The illustrated, exemplary embodiment of the thread guide is on Fixed plug channel 32 and has a corresponding plug passage opening 52 or recess for the passage of the plug.

Mit einer derartigen Vorrichtung kann ein einziger Faden F texturiert werden, wie es in der Figur dargestellt ist, oder aber es sind, wie üblicherweise, parallel zum dargestellten Faden/Pfropfen-Verlauf ( in der Figur oberhalb und/oder unterhalb der Papierebene) weitere Faden/Pfropfen-Verläufe angeordnet.With such a device, a single thread F can be textured, as shown in the figure, or, as is customary, there are further threads parallel to the thread / plug course shown (in the figure above and / or below the paper plane) / Graft gradients arranged.

Zum Starten des Betriebs, wie er in der Figur 1a dargestellt ist, muss ein untexturierter Faden in die Vorrichtung eingezogen werden.To start the operation as shown in FIG. 1a, an untextured thread has to be drawn into the device.

Figur 1b zeigt eine erste Einziehphase. Der Faden F wird mit Hilfe einer Saugpistole in die geöffnete Texturierdüse 1 gelegt. Dabei liegt der Faden an einem am Eingang der Texturierdüse angeordneten, ersten Fadenführer 12 an, der beispielsweise als Führungsstift mit einer Rille für den Faden ausgestaltet ist, wobei die Rille ausgerichtet ist auf den Förderkanal in der Texturierdüse. Der Faden hat dabei beispielsweise einen Verlauf F.1. Dann wird der Faden mit Hilfe der Saugpistole gegen die Pfropfenförderwalze 2 bewegt. Sobald er einen Verlauf F.2 hat, das heisst in den Bereich der Nadelreihen kommt, muss durch entsprechende Führungsmittel dafür gesorgt sein, dass der Faden einen Verlauf hat, mit dem er mit den Nadelreihen nicht in Konflikt gerät. Das heisst auf die Figur bezogen, dass der Faden genau in der Papierebene, also in derselben Ebene wie der Faden/Pfropfen-Verlauf während dem Betrieb verlaufen muss. Diese Führungsfunktion wird einerseits vom ersten Fadenführer 12 und beispielsweise von dem stationären Einzugsfadenführer 5 übernommen. Der Einzugsfadenführer 5 weist dazu einen parallel zum Nadelreihenpaar und mittig darauf ausgerichtet angeordneten Führungsschlitz auf. Figure 1b shows a first pull-in phase. The thread F is placed in the open texturing nozzle 1 with the aid of a suction gun. The thread lies against a first thread guide 12 arranged at the entrance of the texturing nozzle, which is designed, for example, as a guide pin with a groove for the thread, the groove being aligned with the conveying channel in the texturing nozzle. The thread has a course F.1, for example. Then the thread is moved against the plug feed roller 2 with the aid of the suction gun. As soon as it has a course F.2, that is to say it comes into the area of the needle rows, appropriate guide means must ensure that the thread has a course with which it does not come into conflict with the needle rows. In relation to the figure, this means that the thread must run exactly in the paper plane, ie in the same plane as the thread / plug course during operation. This guiding function is performed on the one hand by the first thread guide 12 and, for example, by the stationary thread guide 5. For this purpose, the thread guide 5 has a guide slot arranged parallel to the pair of rows of needles and centered thereon.

Der Einzugsfadenführer ist derart angeordnet, dass der Faden, wenn er einen Verlauf F.2 aufweist oder näher an die Pfropfenförderwalze bewegt wird, durch diesen Schlitz läuft.The thread guide is arranged in such a way that the thread runs through this slot when it has a course F.2 or is moved closer to the plug feed roller.

Während der Fadenverlauf F.1 quer zur Fadenbewegung (aus der Papierebene hinaus) vom ersten Fadenführer 12 an nur von der Position der beweglichen Saugpistole abhängig, also nicht genau bestimmt ist, ist der Fadenverlauf F.2 zwischen dem Fadenführer 12 und dem Einzugsführer 5 genau bestimmt und verläuft genau ausgerichtet zum Förderkanal in der Texturierdüse und dem durch die Nadelreihen gebildeten Pfropfenkanal.While the thread course F.1 transversely to the thread movement (out of the paper plane) from the first thread guide 12 depends only on the position of the movable suction gun, i.e. is not precisely determined, the thread course F.2 between the thread guide 12 and the feed guide 5 is exact determines and runs precisely aligned to the delivery channel in the texturing nozzle and the plug channel formed by the rows of needles.

Die Stelle 51 am Einzugsführer 5, an der die exakte Führung des Fadens, wenn er gegen die Pfropfenförderwalze bewegt wird, mindestens einsetzen muss, liegt auf der Tangente vom ersten Fadenführer 12 an den durch die äusseren Enden der Nadelreihen 21 gebildeten Kreis. Vorteilhafterweise reicht der Führungsschlitz des Einzugsfadenführers 5 etwas über diese Tangente auf deren von der Pfropfenförderwalze abgewendete Seite.The point 51 on the feed guide 5, at which the exact guidance of the thread, if it is moved against the plug feed roller, must at least begin, lies on the tangent from the first thread guide 12 to the circle formed by the outer ends of the rows of needles 21. Advantageously, the guide slot of the thread guide 5 extends somewhat over this tangent on its side facing away from the plug feed roller.

Figur 1c zeigt nun eine zweite Einziehphase, die auf die erste folgt und in der der Faden weiter gegen die Kühltrommel 4 bewegt wird. Kurz bevor der Faden effektiv an die Kühltrommel angelegt wird (Fadenverläufe F.3 für ausgezogenen Drehsinn der Kühltrommel, und F.5 für gestrichelten Drehsinn der Kühltrommel) und von dieser gebremst wird, muss die Texturierdüse geschlossen, das Fördermedium eingeschaltet und mit einer Anstauhilfe, beispielsweise einem gegen die Düsenaustrittsöffnung gerichteten Luftstrom die Pfropfenbildung initiert werden. FIG. 1c now shows a second drawing-in phase, which follows the first and in which the thread is moved further against the cooling drum 4. Shortly before the thread is effectively placed on the cooling drum (thread courses F.3 for the rotational direction of the cooling drum being pulled out, and F.5 for the dashed direction of rotation of the cooling drum) and being braked by the latter, the texturing nozzle has to be closed, the conveying medium switched on and with an accumulation aid for example, the formation of a plug can be initiated against an air stream directed against the nozzle outlet opening.

Für die in den Figuren 1a und 1c mit einem ausgezogenen Drehrichtungs-Pfeil dargestellte Betriebsvariante der Kühltrommel 4 wird der Faden zwischen die Pfropfenförderwalze 2 und die Kühltrommel 4 geführt und dann an die Kühltrommel angelegt, entsprechend dem Fadenverlauf F.3. Dabei kann nicht verhindert werden, dass der Faden weiter als unbedingt notwendig um die Pfropfenförderwalze 2 gelegt wird (Fadenverlauf F.4). Damit bei dieser Bewegung der Faden nicht durch das Pfropfenablösemittel 3 beschädigt werden kann, ist es vorteilhaft, diese Bewegung mit einem entsprechenden zweiten Fadenführer 13 zu begrenzen. Der Fadenführer 13 ist, wie der Fadenführer 12 vorteilhafterweise stabförmig und mit einer Rille für den Faden versehen. Der Fadenführer 13 kann auch unmittelbar unterhalb dem Pfropfenkanal32 angebracht werden.For the operating variant of the cooling drum 4 shown in FIGS. 1 a and 1 c with an extended direction of rotation arrow, the thread is guided between the plug conveyor roller 2 and the cooling drum 4 and then placed on the cooling drum, in accordance with the thread course F.3. It cannot be prevented that the thread is placed further than absolutely necessary around the plug conveyor roller 2 (thread course F.4). So that the thread cannot be damaged by the plug detachment means 3 during this movement, it is advantageous to limit this movement with a corresponding second thread guide 13. The thread guide 13, like the thread guide 12, is advantageously rod-shaped and provided with a groove for the thread. The thread guide 13 can also be attached directly below the plug channel 32.

Für die mit einem gestrichelten Drehrichtungs-Pfeil dargestellte Betriebsvariante der Kühltrommel 4 muss der Faden nur bis zu einem Fadenverlauf F.5 bewegt und während dieser Bewegung durch den Führungsschlitz des Einzugfadenführers geführt sein.For the operating variant of the cooling drum 4 shown with a dashed direction of rotation arrow, the thread only has to be moved up to a thread course F.5 and be guided through the guide slot of the thread guide during this movement.

Sobald sich ein Pfropfen genügender Länge gebildet hat, wird dieser den Verlauf einnehmen, wie er in der Figur 1a abgebildet ist, und der Einzugsfadenführer 5 hat damit seine Aufgabe erfüllt.As soon as a plug of sufficient length has formed, it will take the course as shown in FIG. 1a, and the thread guide 5 has thus fulfilled its task.

Verallgemeinert und gemäss den Figuren 1b und 1c gilt für den Einzugsfadenführer 5, dass er derart ausgestaltet und angeordnet sein muss, dass er zusammen mit dem ersten Fadenführer 12 den untexturierten Faden parallel zu und mittig von Förderkanal und Pfropfenkanal führt für alle beim Einziehen möglichen Fadenverläufe, bei denen der Faden durch den Bereich der Nadelreihen verläuft; für die in den Figuren 1a bis 1c dargestellte Vorrichtung heisst das: bei Kühltrommelrotation entsprechend dem ausgezogenen Pfeil (Uhrzeigersinn) für alle Fadenverläufe zwischen den Fadenverläufen F.2 und F.4, für Kühltrommelrotation entsprechend gestricheltem Pfeil (Gegenuhrzeigersinn) für alle Fadenverläufe zwischen den Fadenverläufen F.2 und F.5.Generalized and in accordance with FIGS. 1b and 1c, the following applies to the thread guide 5 that it must be designed and arranged such that, together with the first thread guide 12, it guides the untextured thread parallel to and in the middle of the conveying channel and plug channel for all possible thread courses during the drawing in, where the thread runs through the area of the rows of needles; for the device shown in FIGS. 1a to 1c that: for cooling drum rotation according to the solid arrow (clockwise) for all thread courses between the thread courses F.2 and F.4, for cooling drum rotation according to the dashed arrow (counterclockwise) for all thread courses between the thread courses F.2 and F.5.

Der in der Figur 1 dargestellte Einzugsfadenführer 5 erstreckt sich stationär um den Umfang der Nadelwalze 2 und von diesem beabstandet. Er ist mindestens zwischen den Stellen 51 (Schnittpunkt mit dem Fadenverlauf F.2) und der Pfropfendurchtrittsöffnung 52 mit einem Führungsschlitz oder für mehrere Fäden mit entsprechenden parallel und mit dem vorgesehenen Fadenabstand verlaufenden Führungsschlitzen versehen, die auf die Förder- und Pfropfenkanäle ausgrichtet sind. Der stationäre Fadenführer 5 wird noch im Zusammenhang mit den Figuren 3 und 4 detailliert beschrieben.The thread guide 5 shown in FIG. 1 extends stationary around the circumference of the needle roller 2 and is spaced from it. It is provided at least between the points 51 (intersection with the thread course F.2) and the plug passage opening 52 with a guide slot or, for several threads, with corresponding guide slots which run parallel and with the intended thread spacing and which are aligned with the conveying and plug channels. The stationary thread guide 5 will be described in detail in connection with FIGS. 3 and 4.

Aus den Figuren 1a bis 1c wird deutlich, wie der untexturierte Faden während dem Einzugsvorgang bei Kühltrommelrotation im Uhrzeigersinn von einem Fadenverlauf F.1 über F.2 und gegebenenfalls F.4 zu einem Fadenverlauf F.3 bewegt und dabei immer im Führungsschlitz des Einzugsfadenführers 5 geführt wird. Aus einer derartigen Vorstellung lässt sich auch einfach ableiten, dass anstelle eines stationären Einzugsfadenführers 5 mit einem Führungsschlitz, wie er in den Figuren 1a bis 1c dargestellt ist, auch ein Fadenführungsmittel, das parallel zur Achse der Nadelwalze angeordnet ist und sich während dem Einzugsvorgang im wesentlichen von der Stelle 51 (Fig. 1b) an die Stelle des zweiten Fadenführers 13 bewegt, zum Einsatz kommen kann.It is clear from FIGS. 1a to 1c how the untextured thread moves clockwise from a thread course F.1 via F.2 and possibly F.4 to a thread course F.3 during the pulling-in process with cooling drum rotation and thereby always in the guide slot of the pulling thread guide 5 to be led. From such an idea, it can also be easily deduced that instead of a stationary thread guide 5 with a guide slot, as shown in FIGS. 1a to 1c, a thread guide means which is arranged parallel to the axis of the needle roller and essentially during the threading process moved from the point 51 (FIG. 1b) to the position of the second thread guide 13, can be used.

Dasselbe gilt entsprechend angewendet natürlich auch für eine Kühltrommelrotation im Gegenuhrzeigersinn, bei der der einzuziehende Faden von einem Fadenverlauf F.1 über F.2 bis F.5 bewegt wird.The same applies accordingly, of course, also to a cooling drum rotation in the counterclockwise direction, in which the thread to be drawn is moved by a thread course F.1 over F.2 to F.5.

Figur 2 zeigt ganz schematisch ein derartiges, bewegtes Fadenführungsmittel, wobei die Vorrichtung, die nicht ganz dargestellt ist, im wesentlichen dieselbe sein soll wie die in den Figuren 1a bis 1c dargestellte. Das bewegte Fadenführungsmittel ist ein stabförmiger Einzugsfadenführer 6, der parallel zur Achse der Pfropfenförderwalze 2 angeordnet ist und sich während dem Einzugsvorgang mindestens von einer Stelle 51.1, die der Stelle 51 der Figur 1b entspricht, an eine Stelle 13.1 bewegt (Pfeil E), wobei die Stelle 13.1 im wesentlichen der Position des zweiten Fadenführers 13 der Figur 1c entspricht. Bei dieser Bewegung behält der Einzugsfadenführer 6 seine zur Achse der Pfropfenförderwalze parallele Stellung bei. Der bewegliche Einzugsfadenführer 6, dessen Ausgestaltung noch im Zusammenhang mit der Figur 5 beschrieben wird, ist für seine Bewegung mit einem entsprechenden Antrieb und vorteilhafterweise einer entsprechenden Steuerung (beides nicht dargestellt) wirkverbunden. Figure 2 shows very schematically such a moving thread guide means, the device, which is not shown completely, should be essentially the same as that shown in Figures 1a to 1c. The moving thread guide means is a rod-shaped feed thread guide 6, which is arranged parallel to the axis of the plug conveyor roller 2 and moves during the pulling-in process from at least one point 51.1, which corresponds to point 51 of FIG. 1b, to a point 13.1 (arrow E), the Position 13.1 essentially corresponds to the position of the second thread guide 13 in FIG. 1c. During this movement, the thread guide 6 maintains its position parallel to the axis of the plug conveyor roller. The movable thread guide 6, the design of which is described in connection with FIG. 5, is operatively connected for its movement with a corresponding drive and advantageously a corresponding control (neither of which is shown).

Figuren 3 und 4 zeigen mehr im Detail einen stationären Einzugsfadenführer 5, wie er bereits für die beispielhafte Ausführungsform gemäss Figuren 1a bis 1c dargestellt und beschrieben wurde, weshalb auch dieselben Bezugsziffern benützt werden. Teile der Vorrichtung zum kontinuierlichen Texturieren von thermoplastischen Fäden mit dem Einzugsfadenführer 5 sind in der Figur 3 entlang dem Faden/Pfropfen-Verlauf geschnitten dargestellt (Schnittlinie II-II der Figur 4). Figur 4 zeigt den Einzugsfadenführer 5 als Draufsicht von der Pfropfenförderwalze aus gesehen. FIGS. 3 and 4 show in more detail a stationary thread guide 5, as has already been shown and described for the exemplary embodiment according to FIGS. 1a to 1c, for which reason the same reference numbers are also used. Parts of the device for the continuous texturing of thermoplastic threads with the thread guide 5 are shown in FIG. 3 cut along the thread / plug course (section line II-II of FIG. 4). FIG. 4 shows the feed thread guide 5 as a top view from the plug feed roller.

Der stationäre Einzugsfadenführer 5 weist, wie bereits mehrmals erwähnt, einen Führungsschlitz 58 auf, der sich mindestens von der Stelle 51 (Schnittpunkt mit dem Fadenverlauf F.2) bis zur Pfropfendurchtrittsöffnung 52 erstreckt. Er weist ferner einen Einlaufbereich 55 auf, der auf der von der Pfropfenförderwalze 2 abgewandten Seite des Fadenlaufes F.2 angeordnet ist und in dem sich der Führungsschlitz 58 zu einer Einlauföffnung 54 ausweitet. Die Funktion des Einlaufbereiches besteht darin, den Faden in den Führungsschlitz 58 zu führen. Der Einzugsfadenführer 5 weist ferner einen Führungsbereich 56 und einen Pfropfendurchtrittsbereich 57 auf. Über die Länge des Führungsbereichs 56 erstreckt sich der Führungsschlitz 58, der sich im Pfropfendurchtrittsbereich 57 zu einer Öffnung 52 ausweitet. An den Pfropfendurchtrittsbereich 57 kann sich ein Befestigungsbereich 59 anschliessen.As already mentioned several times, the stationary thread guide 5 has a guide slot 58 which extends at least from the point 51 (intersection with the thread course F.2) to the plug passage opening 52. It also has an inlet area 55, which is on the of the Plug conveyor roller 2 is arranged facing away from the thread run F.2 and in which the guide slot 58 extends to an inlet opening 54. The function of the inlet area is to guide the thread into the guide slot 58. The thread guide 5 also has a guide area 56 and a plug passage area 57. The guide slot 58 extends over the length of the guide area 56 and widens into an opening 52 in the plug passage area 57. A fastening area 59 can adjoin the plug passage area 57.

Je nach Position des Fadenführers 13 sind Fadenverläufe möglich, bei denen der Faden durch die Pfropfendurchtrittsöffnung 52 verläuft (bspw. Fadenverlauf F.4). In dieser Öffnung ist der Faden nicht genau geführt. Damit die Lage des Fadens aber auch bei diesem Verlauf genügend definiert ist, besitzt der Fadenführer, wie in der Figur dargestellt, an der Stelle 53 eine derartig sich der Nadelwalze nähernde Biegung, dass der Faden bei einem Fadenverlauf gemäss F.4 dort im Führungsschlitz 58 geführt ist. Besitzt der Fadenführer 5 keine derartige Biegung, sondern verläuft im wesentlichen gradlinig über den Bereich 53 (strichpunktiert dargestellt), ist es vorteilhaft, einen Fadenverlauf gemäss F.4 zu vermeiden, beispielsweise durch eine entsprechende Position des zweiten Fadenführers (13.2, Fadenverlauf F.6). Dabei ist es auch vorteilhaft, wenn der zweite Fadenführer für den Faden eine Rille besitzt und derart seinerseits zur Führung des Fadens quer zum Faden/Pfropfenverlauf des Betriebs beiträgt.Depending on the position of the thread guide 13, thread paths are possible in which the thread runs through the plug passage opening 52 (for example thread path F.4). The thread is not precisely guided in this opening. So that the position of the thread is also sufficiently defined in this course, the thread guide, as shown in the figure, has a bend at point 53 which approaches the needle roller in such a way that the thread there in the thread slot according to F.4 in the guide slot 58 is led. If the thread guide 5 does not have such a bend, but runs essentially in a straight line over the area 53 (shown in dash-dot lines), it is advantageous to avoid a thread course according to F.4, for example by a corresponding position of the second thread guide (13.2, thread course F.6 ). It is also advantageous if the second thread guide has a groove for the thread and in turn thus contributes to guiding the thread transversely to the thread / plug course of the operation.

Einzugsfadenführer für Vorrichtungen zum Texturieren von mehreren parallel verlaufenden Fäden weisen eine entsprechende Anzahl von parallel verlaufenden Führungsschlitzen auf.Feed thread guides for devices for texturing several parallel threads have a corresponding number of parallel guide slots.

Figur 5 zeigt in derselben Draufsicht wie Figur 4 eine beispielhafte Ausführungsform für einen beweglichen Einzugsfadenführer 6, beispielsweise für eine Anwendung gemäss Figur 2. Der bewegliche Einzugsfadenführer könnte auch in der Figur 3 den stationären Einzugsfadenführer ersetzen. Die Figur 5 ist derart auf die Figur 3 ausgerichtet, dass der bewegliche Fadenführer 6 diejenige Position einnimmt, die er im wesentlichen beim Beginn des Einziehvorganges einnimmt. Während dem Einziehvorgang wird er entlang dem Pfeil E bewegt. Der bewegliche Einzugsfadenführer 6 weist beispielsweise einen Führungsstift 60 und einen Einlaufteil 61 (analog zum Einlaufbereich 55 des Einzugsfadenführers 5, Figur 4) auf. Der Fadenverlauf F.2 schneidet den Fadenführer in seiner Anfangsstellung an der Stelle 51.1. Anstelle eines zweiteiligen Einzugsfadenführers 6, wie er in der Figur 5 dargestellt ist, kann auch beispielsweise ein Führungsstift, der für den Faden eine um seinen Umfang verlaufende Führungsrinne aufweist, zur Anwendung kommen. 5 shows in the same top view as FIG. 4 an exemplary embodiment for a movable thread guide 6, for example for an application according to FIG. 2. The movable thread guide could also replace the stationary thread guide in FIG. FIG. 5 is aligned with FIG. 3 in such a way that the movable thread guide 6 assumes the position that it essentially assumes at the beginning of the pulling-in process. It is moved along the arrow E during the pulling-in process. The movable thread guide 6 has, for example, a guide pin 60 and an inlet part 61 (analogous to the inlet area 55 of the thread guide 5, FIG. 4). The thread course F.2 cuts the thread guide in its initial position at point 51.1. Instead of a two-part pull-in thread guide 6, as shown in FIG. 5, it is also possible, for example, to use a guide pin which has a guide groove running around its circumference for the thread.

Analog zum stationären Einzugsfadenführer 5 wird auch der bewegliche Fadenführer für eine Vorrichtung zum Texturieren von mehreren Fäden entsprechend breiter und mit mehreren Fadenführungen ausgerüstet.Analogous to the stationary feed thread guide 5, the movable thread guide for a device for texturing several threads is correspondingly wider and equipped with several thread guides.

Figur 6 zeigt nun noch Teile einer weiteren beispielhaften Ausführungsform der Vorrichtung zum kontinuierlichen Texturieren von einem thermoplastischen Faden, die sich von den bisher beschriebenen Ausführungsformen im wesentlichen durch die relative Anordnung von Nadelwalze 2 und Kühltrommel 4 unterscheidet, wobei insbesondere der Pfropfen im wesentlichen waagrecht von der Pfropfenförderwalze geleitet und ohne Pfropfenförderkanal durch den zur Kühlung und zum Festhalten des Pfropfens radial in die Kühltrommel gesaugte Luft direkt auf diese gesaugt wird. Die Figur dient zur Illustration davon, dass das erfindungsgemässe Verfahren und die entsprechende Vorrichtung verschiedene derartige Anordnungen zulässt, wobei aber der Einzugsfadenführer adaptiert oder ergänzt werden muss. Figure 6 now shows parts of another exemplary embodiment of the device for the continuous texturing of a thermoplastic thread, which differs from the previously described embodiments essentially by the relative arrangement of the needle roller 2 and the cooling drum 4, in particular the plug essentially horizontally from the Plug conveying roller directed and sucked directly onto the cooling drum without the plug conveying channel through the air sucked radially into the cooling drum for cooling and for holding the plug. The figure serves to illustrate that the method according to the invention and the corresponding one Device allows various such arrangements, but the thread guide must be adapted or supplemented.

Aus der Figur 6 ist ersichtlich, dass der adaptierte stationäre Einzugsfadenführer 5.1 den Faden führt zwischen einem Fadenverlauf F.2 und einem Fadenverlauf F.7. Wird der Faden weiter um die Pfropfenförderwalze gelegt, was nur bei einem Kühltrommelbetrieb gemäss ausgezogenem Pfeil notwendig ist, durchläuft er die Pfropfendurchtrittsöffnung 52 und ist dort nicht geführt. Auf der anderen Seite der Pfropfendurchtrittsöffnung (Fadenverlauf F.4) kann ein zweiter Fadenführer 13.3 (bspw. Stab mit Führungsrillen) die Führung übernehmen oder der Führungsschlitz kann sich fortsetzen, sodass wieder eine Führung gewährleistet ist. Um die nicht genügende Führung im Bereiche der Pfropfendurchtrittsöffnung zu umgehen, kann die Pfropfenförderwalze 2 mit entsprechenden Führungsmitteln ausgerüstet sein, wie dies durch die Figur 7 illustriert wird.It can be seen from FIG. 6 that the adapted stationary feed thread guide 5.1 guides the thread between a thread course F.2 and a thread course F.7. If the thread is placed further around the plug conveyor roller, which is only necessary for a cooling drum operation according to the solid arrow, it passes through the plug passage opening 52 and is not guided there. On the other side of the plug passage opening (thread course F.4), a second thread guide 13.3 (for example a rod with guide grooves) can take the lead or the guide slot can continue, so that guidance is again ensured. In order to avoid the insufficient guidance in the area of the plug passage opening, the plug conveyor roller 2 can be equipped with appropriate guide means, as is illustrated by FIG. 7.

Figur 7 zeigt in einem schematischen radialen Schnitt (Schnittlinie I-I, Figur 6) durch eine Nadelwalze 2 (nur teilweise dargestellt) mit einem, durch ein Nadelreihenpaare 21 begrenzten Pfropfenkanal. Auf dem Grunde der Nadelwalze verläuft mittig im Pfropfenkanal eine Führungsrinn 22, die beim Einziehen den nicht texturierten Faden führt. Die Figur zeigt ebenfalls einen Ablösekeil 31. Die Nadelwalze gemäss Figur 7 kann beispielsweise für die in der Figur 6 skizzierte Anwendung mit einer Kühlwalzenrotation entsprechend dem gestrichelten Pfeil zur Anwendung kommen, womit auch für diese Anwendung eine Fadenführung beim Einzug von einem Fadenverlauf F.2 bis zu einem Fadenverlauf F.4 gewährleistet ist. FIG. 7 shows a schematic radial section (section line II, FIG. 6) through a needle roller 2 (only partially shown) with a plug channel delimited by a pair of needle rows 21. At the bottom of the needle roller, a guide groove 22 runs in the center of the plug channel, which guides the non-textured thread when it is drawn in. The figure also shows a detaching wedge 31. The needle roller according to FIG. 7 can be used, for example, for the application outlined in FIG. 6 with a cooling roller rotation in accordance with the dashed arrow, which means that thread guidance when pulling in a thread course F.2 to to a thread course F.4 is guaranteed.

Figur 8 zeigt in gleicher Darstellungsweise wie Figur 6 eine weitere Ausführungsform der erfindungsgemässen Vorrichtung. Auch diese Ausführungsform unterscheidet sich im wesentlichen von den bereits beschriebenen durch die relative Anordnung der Vorrichtungsteile. Insbesondere ist bei dieser Ausführungsform der Pfropfensektor, also der Sektor der Nadelwalze, der Teil des Pfropfenverlaufes ist sehr kurz, derart, dass der Verlauf des Pfropfens P die Form einer senkrechten Tangente an die Nadelwalze 2 erhält. Die einzelnen Elemente entsprechen im wesentlichen denen der Figur 6 und müssen deshalb nicht mehr beschrieben werden. Für den einzuziehenden Faden ist ein Fadenverlauf F.2 dargestellt, der der Tangente vom ersten Fadenführer 12 an die Nadelreihen der Nadelwalze 2 entspricht, ein Fadenverlauf F.4, der einem beim Einziehen mit einer Kühltrommelrotation im Uhrzeigersinn (ausgezogener Pfeil) entsprechen kann und ein Fadenverlauf F.5, der für einen Kühltrommelbetrieb im Gegenuhrzeigersinn (gestrichelter Pfeil) entspricht. Es ist aus der Figur sichtbar, dass je nach genauer Position und Durchmesser der Kühltrommel 4 der Führungsschlitz im Einzugsfadenführer 5.2 sich über die Stelle 51 (Schnittpunkt des Fadenführers mit der Tangente vom ersten Fadenführer an die Nadelreihen) erstrecken muss, wenn der Fadenverlauf F.5 dies erfordert. FIG. 8 shows a further embodiment of the device according to the invention in the same representation as FIG. 6. This embodiment also differs essentially from those already described in the relative arrangement of the device parts. In particular, in this embodiment the plug sector, that is to say the needle roller sector, and the part of the plug profile is very short, such that the profile of the plug P takes the form of a vertical tangent to the needle roller 2. The individual elements essentially correspond to those in FIG. 6 and therefore do not have to be described any longer. For the thread to be drawn in, a thread course F.2 is shown which corresponds to the tangent from the first thread guide 12 to the rows of needles of the needle roller 2, a thread course F.4 which can correspond to one when pulled in with a cooling drum rotation in the clockwise direction (solid arrow) and one Thread course F.5, which corresponds to counterclockwise for a cooling drum operation (dashed arrow). It can be seen from the figure that, depending on the exact position and diameter of the cooling drum 4, the guide slot in the feed thread guide 5.2 must extend over the point 51 (intersection of the thread guide with the tangent from the first thread guide to the rows of needles) when the thread course F.5 this requires.

In allen bis anhin beschriebenen und in den Figuren dargestellten Vorrichtungen kommt als Kühlmittel eine rotierende Kühltrommel zur Anwendung. Da die Art des Kühlmittels aber auf die Lösung der der Erfindung zu Grunde liegenden Aufgabe keinen Einfluss hat, sind auch andere Kühlmittel denkbar. Dabei können insbesondere Kühlkammern, wie sie beispielsweise in der schweizerischen Anmeldung Nr. 3775/90-4 (Anmeldedatum 29.11.90, P0381, Obj 949) (Figuren 4a und 4b) derselben Anmelderin beschrieben sind, zur Anwendung kommen.In all the devices described so far and shown in the figures, a rotating cooling drum is used as the coolant. However, since the type of coolant has no influence on the solution to the problem on which the invention is based, other coolants are also conceivable. In particular, cooling chambers as described, for example, in Swiss Application No. 3775 / 90-4 (application date November 29, 1990, P0381, Obj 949) (FIGS. 4a and 4b) by the same applicant can be used.

Claims (14)

  1. A method for the continuous texturing of a thread, or of several threads extending parallel, from a thermoplastic material by means of a texturing nozzle (1) with at least one conveyor duct, at least one spinneret opening (11) and a thread guide (12) arranged at the entrance, a plug conveying roller (2) with at least one pair of lateral plug guiding means (21), at least one plug detaching means (3) and a plug cooling means (4), characterized in that during the start each untextured thread to be drawn in is guided by the first thread guide (12) and by a draw-in thread guide (5, 5.1, 6) in such a way that it is placed in a centered manner on the plug conveying roller (2) between the lateral plug guide means (21).
  2. A method as claimed in claim 1, characterized in that the untextured thread is guided by the first thread guide (12) and the draw-in thread guide (5, 5.1, 6) for all possible thread courses between a course (F.2) on a tangent from the first thread guide (12) to the cylinder envelope surface formed by the lateral guide means and a course (F.4) in which the thread extends over a sector of the plug conveying roller and to a second thread guide (13).
  3. A method as claimed in claim 1 or 2, characterized in that during the drawing-in by the first thread guide (12) the untextured thread is guided by the draw-in thread guide (5, 6, 5.1) and additionally by guide grooves (22.1, 22.2, 22.3) on the plug conveying roller (2).
  4. A method as claimed in one of the claims 1 to 3, characterized in that the draw-in thread guide (5, 5.1) is stationary and the untextured thread is guided in a guide slot (58).
  5. A method as claimed in one of the claims 1 to 3, characterized in that the draw-in thread guide (6) is moved during the drawing-in process and the untextured thread is guided by a guide pin (60) and a feeding portion (61) or by a guide pin provided with grooves.
  6. An apparatus for the continuous texturing of a thread, or of several threads extending mutually parallel, from a thermoplastic material according to the method as claimed in claim 1, with said apparatus having a texturing nozzle with at least one conveyor duct, a first thread guide (12) arranged in the zone of the entrance of the conveyor duct and at least one spinneret opening (11), a plug conveying roller (2) with at least one pair of lateral guide means (21), at least one plug detaching means (3) and a plug cooling means (4), characterized in that for drawing in the thread(s) during the start the apparatus is provided with a draw-in thread guide (5, 5.1, 6).
  7. An apparatus as claimed in claim 6, characterized in that the draw-in thread guide (5, 5.1) is arranged in a stationary manner at least partly about the circumference of the plug conveying roller (2) and distanced therefrom, and is provided with at least one guide slot (58) for guiding the thread(s).
  8. An apparatus as claimed in claim 7, characterized in that the draw-in thread guide (5, 5.1) is provided with a feeding zone (55) which is arranged on the side of a tangential plane, which is averted from the plug conveying roller (12), from the first thread guide (12) to the cylinder envelope surface formed by the outer circumferences of the lateral guide means (21), a guide zone (56) downstream of the feeding zone (55) extending towards the plug detaching means (3) with at least one guide slot (58) and a plug pass-through zone (57) with at least one plug pass-through aperture (52) arranged in the zone of the plug detaching means (3), with one guide slot (58) each opening out into a pass-through aperature (52).
  9. An apparatus as claimed in claim 8, characterized in that each guide slot (58) continues on the opposite side of the plug pass-through aperture (52).
  10. An apparatus as claimed in claim 8, characterized in that the draw-in thread guide is designed and arranged in such a way that its distance from the circumference of the plug conveying roller is irregular.
  11. An apparatus as claimed in claim 6, characterized in that the draw-in thread guide (6) is provided with a guide pin (60) which is arranged parallel to the axis of the plug conveying roller (2) and distanced from its circumference and is operatively connected with a drive in such a way that it is movable about a part of the circumference of the plug conveying roller during the draw-in process.
  12. An apparatus as claimed in claim 11, characterized in that the guide (60) is associated with a feeding part (61).
  13. An apparatus as claimed in claim 11, characterized in that the guide pin (60) is provided with at least one guide groove.
  14. An apparatus as claimed in one of the claims 6 to 13, characterized in that the plug conveying roller (2) is provided with one guide groove (22) each between the lateral guide means (21) parallel thereto.
EP93924490A 1992-11-19 1993-11-17 Process and device for texturing thermoplastic threads Expired - Lifetime EP0620872B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH03547/92A CH689040B5 (en) 1992-11-19 1992-11-19 Method and apparatus for texturing of thermoplastic yarns.
CH3547/92 1992-11-19
PCT/CH1993/000262 WO1994011551A1 (en) 1992-11-19 1993-11-17 Process and device for texturing thermoplastic threads

Publications (2)

Publication Number Publication Date
EP0620872A1 EP0620872A1 (en) 1994-10-26
EP0620872B1 true EP0620872B1 (en) 1997-03-19

Family

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Application Number Title Priority Date Filing Date
EP93924490A Expired - Lifetime EP0620872B1 (en) 1992-11-19 1993-11-17 Process and device for texturing thermoplastic threads

Country Status (6)

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US (1) US5653010A (en)
EP (1) EP0620872B1 (en)
JP (1) JPH07503044A (en)
CH (1) CH689040B5 (en)
DE (1) DE59305877D1 (en)
WO (1) WO1994011551A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5915699A (en) * 1997-10-24 1999-06-29 E. I. Du Pont De Nemours And Company Heated enclosure
DE19955227A1 (en) * 1999-11-17 2001-05-23 Rieter Ag Maschf Texturing nozzle
DE10043002A1 (en) * 2000-09-01 2002-03-14 Rieter Ag Maschf texturing
EP1397541B2 (en) * 2001-05-10 2012-02-15 Oerlikon Textile GmbH & Co. KG Compressive crimping device for a synthetic multi-threaded yarn
DE10202788A1 (en) * 2002-01-25 2003-07-31 Rieter Ag Maschf Texturing system and texturing nozzle therefor
FR2963028B1 (en) * 2010-07-26 2013-05-03 Superba Sa METHOD AND DEVICE FOR TEXTURING WIRE FOR CARPET OR CARPET, BEYOND A THERMAL TREATMENT UNIT

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534922A (en) * 1968-03-11 1970-10-20 Leesona Corp Strand control apparatus
US4936000A (en) * 1979-10-02 1990-06-26 Rieter Machine Works, Ltd. Lacing up of thread treating nozzles
EP0123072B1 (en) * 1980-03-31 1987-09-09 Maschinenfabrik Rieter Ag Thread texturising nozzle
CN1014728B (en) * 1987-10-05 1991-11-13 里特机械公司 Method of and apparatus for continuously crimping thermoplastic filaments
EP0488939B1 (en) * 1990-11-29 1995-02-22 Maschinenfabrik Rieter Ag Method and apparatus for the disentangling of a yarn plug after texturising
EP0571323A1 (en) * 1992-05-20 1993-11-24 Maschinenfabrik Rieter Ag Apparatus for the continuous crimping of thermoplastic yarns

Also Published As

Publication number Publication date
EP0620872A1 (en) 1994-10-26
DE59305877D1 (en) 1997-04-24
JPH07503044A (en) 1995-03-30
US5653010A (en) 1997-08-05
CH689040B5 (en) 1999-02-26
WO1994011551A1 (en) 1994-05-26
CH689040GA3 (en) 1998-08-31

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