EP1178139B1 - False twisting texturing machine - Google Patents

Description

The invention relates to a false twist texturing machine for texturing synthetic Threads according to the preamble of claim 1.

Such false twist texturing machines have a multiplicity of processing points - usually up to 216 processing points - on, in the machine longitudinal side are arranged side by side. Here, each of the processing points a first delivery plant and a second delivery plant on. The first delivery works pulls the Thread from a feed bobbin and promotes him in a false twist zone. The second Delivery mechanism pulls the thread out of the false twist zone and conveys it to a Aufwikeleinrichtung, the thread speed and the drawing of the thread determined by the speed ratio between the second and first delivery plant is.

When texturing synthetic threads, thread speeds are common, both a correspondingly long heating zone and a correspondingly long cooling zone require. In the false twist method, the quality of the crimping achieved in particular by the ruling in the individual areas within the false twist zone Thread tension affected. For example, it is known that a low, the stable threadline not yet endangering thread tension in the heating zone for the Achieving a good crimp is desired. On the other hand, it was also observed that with the increase of the yarn tension approximately in the region of the cooling rail an improvement in the result accompanied. Thus, it would be desirable to have a thread tension to adjust in the false twist zone, both during the heat treatment and also leads to good results during cooling.

From EP 0 638 675 a false twist texturing machine is known, which is a As a rotatable conveyor roller executed twist stop device within the false twist zone having. This is indeed achieved that by the twist stop on the thread exerted frictional force only leads to a small change in the yarn tension, however, the absolute value of the thread tension in the false twist zone is substantially from the set draft ratio between the first and second delivery mechanisms dependent. Thus, there would be a change in the yarn tension in the false twist zone only accessible by changing the thread speed.

The false twist texturing machine according to the invention and the invention Process for texturing is characterized in particular by the fact that the yarn tension within the false twist zone, independent of that between the delivery unit as well as the false twist zone downstream delivery set Stretch ratio is changeable. In this case, the false twist generated in the thread runs as far back as needed to create the crimp in the thread. Consequently the twist stop device is arranged immediately in front of the heating device. The Thread tension in the thread is determined by the friction between the running Thread and the peripheral surface of the driven conveyor roller influenced. The conveyor roller can be driven in such a way that the peripheral speed of the Feed roller is smaller than the thread speed. The thread would thus with a sliding friction component guided over the peripheral surface of the conveying roller. As a result, an increase in the yarn tension in the false twist zone is achieved.

In the event that the peripheral speed of the conveyor roller equal to the thread speed is, takes place a substantially string tension neutral deflection of the thread through the twist stop device. In the false twist zone, the thread tension, resulting from the between the delivery plant and the second delivery plant set speed ratio results.

It is to produce a low yarn tension level in the false twist zone required to drive the conveyor roller such that the peripheral speed of Peripheral surface is greater than the thread speed. This creates between the thread and the peripheral surface of the conveyor roller slip, resulting in a thread tension reduction leads. This variant of the method would also be suitable for between the withdrawal delivery and the twist stop device a Vorverstreckung in To create thread.

In order to accommodate the twisting moment of the thread, must by the twist stop device a corresponding counter-torque can be generated. This will be special advantageously achieved in that the thread in the wrap of the conveyor roller in a zigzag pattern on the circumferential surface of the conveyor roller. It arises a friction in each deflection point between the thread and the conveyor roller, which counteracts substantially only the transverse forces of the thread.

Leaves the zig-zag threadline on the peripheral surface of the conveyor roller particularly advantageous arranged by individual on the circumference of the conveyor roller Implement thread guide elements. This makes it possible to any form of To realize thread deflection transversely to the thread running direction. The maximum deflection The thread is thereby by the overlap of opposite leading edges certainly. The number of deflections is determined by the distance of the Thread guide elements determined to each other.

In a preferred embodiment, the thread guides are formed as rings, the pushed from both ends on them driven conveyor roller pushed are. You can thereby form the thread running track between them or shaped be that the yarn track by corresponding, radial from the ring inner surfaces outgoing, laterally attached extensions is formed.

In a further preferred embodiment, the conveyor roller of two Washers are formed, the laterally projecting yarn guide elements at their outer edges have and angeordent to each other on a drive shaft are that a zigzag-shaped yarn track on a through the yarn guide elements formed peripheral surface results.

To the wrap of the thread to the thread guide edges of the thread guide elements to influence, it is particularly advantageous if the thread guide elements are designed adjustable. This can already at low wrap the peripheral surface of the conveyor roller in the thread a high friction torque be generated for receiving the twisting moment of the thread.

The thread can be attached to the conveyor roller by a movable Fadenumlenkeinrichtung be applied very gently, the directly in the yarn path before or behind the conveyor roller is arranged such that the wrap angle on the conveyor roller is changeable by the deflection. Here, the wrap angle be set at the conveyor roller in the range between 0 and 360 degrees. In this case, the thread is preferably first with very little looping to the Funding created. Then, by the movement of the Fadenumlenkeinrichtung the wrap around the conveyor roller are steadily increased until the promotion Required wrap or looping required for the threadline is set.

It has proved to be particularly favorable when the thread guide edges of the thread guide elements have a radius of curvature of at least 1.5 mm. In order to is a thread-gentle deflection for the realization of the zigzag-shaped threadline guaranteed.

The zig-zag described by the thread track should be one after the other or other end face of the conveyor roller open angle of at least 100 ° C. include.

In the case that the peripheral surface of the conveying roller by thread guide elements is formed, can be achieved at a constant drive speed of the conveyor roller, that the peripheral speed of the peripheral surface is variable. Likewise so that the wrap on the peripheral surface of the conveyor roller in a small Dimensions are affected.

The dimensions of the swirl stop roll according to the invention can be a relatively large Range vary. In order to record the swirl moment of the thread has However, it is shown that a diameter of the peripheral surface of the conveying roller of at least 40 mm.

In order to increase the effect of the conveyor roller, it is particularly advantageous if the conveyor roller on the circumference several parallel juxtaposed zigzag-shaped Having yarn tracks. Here, the change from a thread track to next yarn track through an axially parallel to the conveyor roller arranged second Support role guaranteed.

Generally, it has been found advantageous to adjust the threadline, i. the one with the thread contacted areas of the conveyor roller and the deflection points on the thread guide elements to be provided with a low-wear coating or the Thread guides made of a suitable abrasion, for example ceramic material manufacture.

In the threads, the spin can also be braked sufficiently by means of a galette. It is necessary that the galette has a leading edge to the To be able to absorb the transverse force of the thread.

During operation, more or less occur on all contacted with the thread surfaces Wear and tear on. However, these signs of wear also lead cause the thread tension of the thread to change. Besides, it can become unstable Thread progressions come. Therefore, it is particularly advantageous if the inventive Texturing machine is designed with a control device that with a Fadenzugkraftsensor and with the drive of the conveyor roller is in communication. Consequently depending on the measured yarn tension can be directly the drive control the conveyor roller. If the control device is a desired value of the yarn tension given, so by means of the conveyor roller, the thread tension in the thread permanently be corrected.

It is recommended to arrange the yarn tension force sensor in front of the heater, so that the position of the forming draw point in the heater substantially remains stable. In addition, the lowest possible thread tension level can thus be achieved in the false twist zone are driven.

Since in general the yarn tension in the cooling phase is higher than in the heating phase and also should not fall below a certain level, is the inventive False twist texturing machine with one between the heater and to use the yarn tensile force sensor arranged on the cooling device preferably, especially in the cases where the cooling device and the heating device are arranged in a straight line of threads one behind the other, so that a Fadenzugkrafterhöhung by Umlenkfadenführer is not possible.

In a particularly advantageous development of the texturing machine according to the invention is provided that the thread from a supply spool by means of the conveyor roller is deducted directly. In addition to the thread tension, the thread speed is also affected determined by the conveyor roller and the downstream delivery plant.

The conveyor roller is advantageously driven by means of an electric motor. This means that each processing point is independent of the neighboring processing points adjustable. Thus, in each processing point a substantially same high thread quality can be generated. However, it is possible to have a group of drive adjacent adjacent conveyor rollers together via a drive. Here are the conveyor rollers interconnected by a continuous drive shaft, the is driven by a motor.

It is known for example from DE 33 24 243 that the delivery mechanisms of the processing stations be driven by a drive motor, wherein the first Supply plants and the second delivery plants are geared together. The delivery plants of neighboring processing stations are here by continuous Drive shafts formed.

With such an arrangement, in the case of a thread break, the threads on the delivery mechanisms can be used occurring winder formations either only by switching off the entire Machine or only very difficult to remove with running drive shafts. Furthermore, arises when you create a thread in a processing station the problem that the thread must be created to supply plants, the have a high conveying speed required for processing.

In Lufttexturiermaschinen for the production of loop yarn, it is customary, the delivery works to drive by individual drives, as is known from DE 36 23 370. Such machines have no false twist zone, so that a relatively short Yarn run between the supply spool and the take-up be realized can. The delivery plants are arranged within reach of the operator Modules combined with one or more drive / s. The case However, godets or apron feeders used also have the disadvantage that that a broken thread leads to a consuming to be removed winder formation.

The particularly preferred development of the invention according to claim 1 creates a Falschdralltexturiermaschine, which is characterized in that the first delivery plant is formed by a conveyor roller. Here, the required transport speed transferred to the thread by frictional forces. The thread wraps around For this purpose, the conveyor roller in the circumferential direction partially, the thread across is deflected back and forth to its direction, so that a zigzag-shaped Thread track on the circumference of the conveyor roller sets. Through this zig-zagged Thread running track on the circumference, the frictional forces on the thread are increased so far, that the sliding of the thread on the peripheral surface is prevented. It also leads the zigzag-shaped yarn track to the fact that only a taut thread on the Circumferential surface of the conveyor roller sets because the sliding resistance at the deflection point the thread running track must be overcome. A torn thread will be Therefore, do not form a tight roll on the peripheral surface of the conveyor roller. The string will wind up on the circumference outside the thread track and can thus easily be removed.

The conveyor rollers are each independently drivable, so that each processing point can be controlled individually. This can be particularly advantageous the so-called sympathy thread breaks are avoided. A sympathy thread break occurs when the thread break at a processing point one or further thread breaks adjacent processing points result. With the invention Texturing machine will thus provide high process reliability as well minimal thread scrap reached.

Even in the preparation of a false twist texturing machine according to the invention misalignments on the ground lead to no influence on the delivery plants.

In a preferred embodiment, the conveyor rollers are detachable and / or releasably connected to the respective drives. Thus, at a Winder forming the conveyor roller in a simple way from the processing point Remove and replace with a new transport roller. Shorten it the downtime significantly.

The drives of the conveyor rollers are preferably designed as electric motors, the can be controlled by individual inverters or group inverters.

In one embodiment of the invention, the conveyor rollers are each by a Drive unit combined with an eddy current brake driven. By a Such an arrangement, the control effort of the drive can be reduced.

In a further particularly advantageous embodiment of the invention Texturing machine is the conveyor roller by means of a jig operable. As a result, short threadlines can be realized in the machine become. The conveyor rollers can be placed in the machine at locations that can only be reached by the operator with auxiliary equipment. Another advantage is given by the fact that the thread with the least possible deflections are performed can, so that a gentle thread treatment with little friction possible becomes.

From EP 0 641 877 A2 a false twist texturing machine is known which consists of a Winding frame, a process frame and a gate frame composed is. Between the winding frame and the process rack, an operating gear is formed, Freewheeling by hand to each delivery line to the delivery plants and other treatment facilities to apply. This structure leads to a complicated threadline with several deflection points in the yarn path between the gate frame and the Process frame.

The particularly advantageous embodiment of the invention according to claim 6 or 7 provides a false twist texturing machine which is located immediately in front of the entrance the first heater, the first supplier and which the heater and the cooling device arranged in a plane. By the arrangement it is achieved that the Thread during the passage of the heater and the cooling rail of a very low friction is suspended. By means of the delivery mechanism, the Fadem is given a defined transport speed granted. The inventive arrangement could also on the use of an additional twist stop before the heater can be dispensed with. The yarn twist generated in the yarn path behind the cooling rail by the false twister would only progress to the first delivery plant. In the delivery plant takes place then due to a generated by wrapping friction or clamping on the thread a dissolution of the twist. The swirl stopper thus limits the False twist zone. The false twist texturing machine according to the invention is characterized In particular, by a low height, since the level in which the Heater and the cooling device are arranged horizontally or with a small amount Slope to the horizontal runs.

The first delivery mechanism is operated according to the invention with a landing device. This ensures that the thread at the beginning of the process by an operator safely can be created or these can be removed when Wicklerbildung. It is particularly advantageous if the application device of the operating gear is to operate. This ensures that at the beginning of the process the creation of the thread in the delivery plants as well as the individual treatment facilities Can be performed by an operator by hand.

The application device can in this case also consist of two sections, wherein in first section, the landing device is moved vertically, for example the thread from the operating position to a required working height to create bring. In the second section, the application device is horizontally movable, so that, for example, the thread in a arranged above the creel deflection pulley can be inserted and then passed the thread to the conveyor roller becomes.

An advantageous development of the false twist texturing machine according to claim 9 has the advantage that the operating gear and the Doffgang for clearing the Texturiergamspulen are separated from each other. This ensures that the finished Spools can be cleared at any time by a clearing device, without that Operating personnel is disturbed by this. The thread is also directly from the gate frame on a short way led directly to the heater entrance. This is the thread advantageously guided only over a pulley.

A particularly advantageous embodiment according to claim 11 provides that the first delivery system with a height-adjustable landing arm of the docking device is firmly connected. Thus, the first delivery mechanism can be between an operating position and an operating position back and forth. In the operating position, the can be reached by the operator, the thread is manually to the first delivery plant created. Then the delivery mechanism is moved by the feed arm into the texturing mode required operating position brought. This could be the application device advantageous at the same time the application of the thread to the first heater as is known, for example, from DE 25 30 125 (Bag 949).

In an advantageous embodiment of the false twist texturing machine according to the invention the conveyor roller is fixed with a height-adjustable feed arm the application device is connected and by means of the height-adjustable Anlegearm adjusted between an operating position and an operating position. Thereby it is achieved that the thread created at the beginning of the process by an operator which increases the landing safety. Furthermore, in a winder formation on the conveyor roller an exchange of the conveyor roller or the removal of the thread remnants in the operating position without aids by the operator feasible.

A particularly preferred embodiment of the invention according to claim 16 leads to a high flexibility of the respective processing point. This allows the delivery plants individually adjusted to a machining point. In addition, you can even when the thread break in front of the winding device, the winder from the delivery be easily removed.

The drives of the conveyor rollers are connected to each other via a control device connected, so that the conveying speeds of the delivery of a processing station set to the speed required for the threading ratio remains. This also allows any speed ratio between the Realize delivery plants.

The control device is connected according to claim 5 with a yarn tension sensor, which is arranged within the false twist zone. This can be the for To influence the process required thread tension by means of conveyor rollers. This is particularly advantageous when after prolonged use due to wear and tear at the thread-guiding parts the yarn tension required for the process has risen to an inadmissible level. In addition, herewith especially processes with a very low level of yarn tension are driven. at a thread break can also have an advantageous shutdown of the conveyor roller respectively.

A development of the invention provides that the control devices of a processing station is connected to a machine control unit. This is the Possibility of a collective change introduced via the machine control unit To perform the speed of the delivery works. This arrangement is advantageous if, for example, raised the thread speed in the processing station shall be. For this purpose, with the machine control a collective adjustment made the processing point. However, there is also the possibility, for example for switching the delivery mechanisms from a starting speed an operating speed that the machine control of the control device specifies a time function. The time function controls the switching of the speeds the delivery works so that no inadmissible yarn tension peaks occur.

In a particularly preferred embodiment of the invention, the control device a processing station connected to an energy buffer, the Power failure Controlled braking of the drives within the processing station allows. This can be avoided that in case of power failure it too an uncontrolled termination of the process that causes a thread break.

At the beginning of the process when threading no thread tension peak in the thread To produce, it is particularly advantageous if the conveyor rollers a machining point when applying have substantially the same conveying speed. Thus, a secure threading is effected.

The thread guide on the conveyor roller can be designed such that wrap angle greater than 180 ° on the conveyor roller can be realized without a significant Fadenzugkrafterhöhung in the thread arises. The thread can be as far as possible redirect thread tension neutral through such conveyor rollers. This is particularly advantageous to realize compact machine structures. Let it As a result, machine components are combined to form individual modules.

A particularly advantageous development of the invention is according to the second delivery mechanism with a second heater and designed as a conveyor roller third Delivery plant executed. Thus, the false twist texturing machine is particular suitable for texturing polyester yarn. The heat aftertreatment of the Thread takes place here in the second heater, wherein the yarn tension of the Speed ratio of the conveyor rollers before and after the heater depends.

Here, the set heater is located behind the second delivery in the process rack. A third supplier, which promotes the thread for winding, is on the winding frame arranged.

Another preferred embodiment of the false twist texturing machine has individual drives for each unit of a processing station. This will be a high flexibility in terms of yarn processing and machine layout reached. In the Aufwikeleinrichtung the traversing and the friction roller respectively via individual drives, preferably converter-controlled electric motors, driven. Likewise, the false twister is equipped with a single electric drive.

In the embodiment of the individual drives of the take-up device, the embodiment, in which the drive of the friction roller is integrated axially in the friction roller is particularly advantageous. This makes it possible to create a particularly compact winding unit.

Usually, the thread before it is led to the winding, with a Preparation order provided. Such projection devices are preferred as Roll preparation devices executed. In this case, the projection means is off promoted a bath by means of a roller to the thread. To the flexibility of the processing point To increase it is particularly advantageous if this roller means a roller motor is driven. The roller motor is independent of this the neighboring one Power driven machining point.

In a particularly preferred embodiment of the invention is in the yarn path arranged in front of the conveyor roller a yarn brake. The thread brake can be doing it adjust so that a defined biasing force is generated. The thread brake This can be advantageous by several partially entangled thread from the thread guide realize, with one of the yarn guide is made adjustable to the wrap to change.

The false twist texturing machine according to the invention is particularly distinguished due to the high flexibility in the production of textured yarns. There are Both fine denier polyamide yarns and very large polyester yarns Titer by appropriate adjustment of the thread tension in the false twist zone to edit.

At high yarn speeds exists to avoid high yarn tension peaks the possibility of adjusting the feed speed of the delivery mechanisms. Thus, the first delivery plant and the second delivery plant with the same Speed operated.

Switching the delivery mechanisms from the application speed to the operating speed advantageously takes place after a predetermined time function. in this connection can a collective adjustment of the delivery works be carried out. It will, however strives to specify the time function for controlling the delivery works in such a way that this was defined by the difference in speed of adjacent delivery plants Draw ratio sets only when reaching the operating speed. Consequently Inadmissible thread tension peaks when starting the machine, after the thread is inserted into each unit, avoided.

The false twist texturing machine according to the invention is also preferred as a Double machine executed. Here are the two machine halves to each other provided that the process racks are directly opposite. Thereby is achieved that the electric drive components for the false twister as well summarized for the second delivery plant in a common drive cabinet can be.

The machine according to the invention allows a particularly thread-gentle texturing at high texturing speeds. Due to the between the gate frame and the process frame substantially rectilinear course of the thread, wherein the thread spans the Aufwickelgestell, a low profile of the Machine realized. Despite this low height is the false twist texturing machine equipped with a heating and cooling section, which is also suitable for high speeds is also suitable from coarse polyester yarns.

Some embodiments are set forth below with reference to the appended drawings Drawings described in more detail.

Fig. 1 und 2

das Schema einer erfindungsgemäßen Falschdrall-Texturiermaschine mit Fadenzugkraftregelung in der Falschdrallzone;

Fig. 3

das Schema eines weiteren Ausführungsbeispiels einer Falschdrall-Texturiermaschine;

Fig. 4 bis 6

eine als Förderrolle ausgeführte Drallstopeinrichtung;

Fig. 7 und 8

weitere Ausführungsbeispiele einer Drallstoprolle;

Fig. 9

eine schematische Ansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Falschdralltexturiermaschine;

Fig. 10

eine schematische Ansicht einer Doppelmaschine;

Fig. 11

eine schematische Ansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Falschdrall-Texturiermaschine;

Fig. 12 und 13

weitere Ausführungsbeispiele der erfindungsgemäßen Falschdrall-Texturiermaschine mit Einzelantrieben;

Fig. 14

ein weiteres Ausführungsbeispiel einer Maschinensteue rung einer Texturiermaschine aus Figur 11;

Fig. 15

ein Lieferwerk mit Fadenumlenkeinrichtung;

Fig. 16

ein weiteres Ausführungsbeispiel eines Antriebes für ein Lieferwerk;

Fig. 17

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Falschdralltexturiermaschine.

They show:

Fig. 1 and 2

the diagram of a false twist texturing machine according to the invention with yarn tension control in the false twist zone;

Fig. 3

the diagram of another embodiment of a false twist texturing machine;

4 to 6

a scroll stopper designed as a conveyor roller;

FIGS. 7 and 8

further embodiments of a twist stopper roll;

Fig. 9

a schematic view of another embodiment of a false twist texturing machine according to the invention;

Fig. 10

a schematic view of a twin machine;

Fig. 11

a schematic view of another embodiment of the false twist texturing machine according to the invention;

FIGS. 12 and 13

Further embodiments of the false twist texturing machine according to the invention with individual drives;

Fig. 14

a further embodiment of a Maschinensteue tion of a texturing machine of Figure 11;

Fig. 15

a delivery mechanism with Fadenumlenkeinrichtung;

Fig. 16

a further embodiment of a drive for a delivery mechanism;

Fig. 17

a further embodiment of a false twist texturing machine according to the invention.

In the following embodiments of the false twist texturing machine according to the invention are the components of the same function with identical reference numerals named.

For the false twist texturing machine according to FIGS. 1 to 3, the following description applies. Insofar as there are differences, this becomes particularly apparent in the description mentioned.

The false twist texturing machine has in the longitudinal direction - in the figures is the Drawing plane equal to the transverse plane - a variety of processing points, wherein in each case one thread per processing point is processed. Since the Aufwickeleinnchtungen take a width of three processing points, each three Winding points on the machine frame 9 in a column arranged one above the other. Accordingly are also each three feed bobbins 7 one above the other at one Creel 1 is arranged.

Each processing point has a supply spool 7, on which a thermoplastic Thread 4 is wound up. The thread 4 is a head thread guide 12 under deducted by the first delivery 13 a certain voltage.

The thread 4 is then by a deflection roller 11 to the twist stop 65th deflected and passes through an elongated heater 18. In this case, the Thread heated to a certain temperature. The heater is as a high temperature heater executed, in which the heating surface temperature is above 300 ° C. One Such a heater is known, for example, from EP 0 412 429 (Bag 1720). in this respect is referred to this document.

Behind the heating device 18 is a cooling device 19. The cooling device 19 is designed as an elongated cooling rail. Between the heater 18 and the cooling device 19, the thread via a deflection roller 11th directed, so that the heating device 18 and the cooling device 19 V-shaped to each other are arranged.

However, the texturing machine according to the invention is not limited to such Arrangement, but also allows any other assignment between the heater and the cooling device, for example, to a straight yarn path realize, as described later.

Behind the cooling device 19 is a schematically illustrated false twister 20. This false twister 20 may be designed as Friktionsscheibenaggregat as described for example in EP 0 744 480 (Bag 2322).

Following the false twister 20, a second further delivery mechanism 21 is used, the thread 4 via both the heater 18 and the cooling device 19 too pull. In the thread running direction behind the second delivery mechanism 21 is a set heater 22. This set heater 22 may be formed as a curved heating tube, which is surrounded by a heating jacket, wherein the heating tube from the outside with Steam is heated to a certain temperature. However, the set heater 22 could as well as the first heater 18 designed as a high-temperature heater be.

The thread 4 is in this case by means of another third delivery mechanism 23 from the set heater pulled and conveyed to a take-up device 9. In the winding device 9, the thread 4 on a take-up reel 25, by a friction roller 24th is driven, wound up. Before the friction roller 24 is a traversing device, by means of which the thread on the take-up reel 25 back and forth and wound up as a cross winding.

The delivery mechanisms 13, 21 and 23 are separate and corresponding to the process requirements with different, mutually related Driven conveyor speeds. This drive can in a known manner Help continuous drive shafts happen, in which case the drive shafts of the three delivery groups 13, 21 and 23 with each other - for example by a Change gear - are firmly coupled.

In the exemplary embodiments of FIGS. 1 to 3, the twist stop devices 65 are each designed as a conveyor roller 30, which are partially wrapped by the thread 4. Of the Thread 4 is doing in a zigzag-shaped yarn track on the peripheral surface the conveyor roller 30 - as described in more detail later. The conveying roller 30 is coupled to a drive 46.

In the embodiment in Fig. 1, the drive 46 of the twist stop roll 30 with a control device 49 connected. Between the swirl stopper 30 and the heater 18, a yarn tension sensor 63 is arranged in the yarn path. The thread tension sensor 63 is connected to the control device 49. In the one shown in Fig. 1 Embodiment, the thread 4 with the delivery mechanism 13 from the original spool 7 subtracted and promoted in the false twist zone. The false twist is the thread 4 introduced by the false twist unit 20. The false twist thus generated runs counter to the thread running direction back to the twist stop 30. Thus is the thread in false false state by the heater 18 and the Cooling device 19 out. The thread is in the thrown state in the heater 18 stretched and fixed, resulting in a strong impression of the twist and thus leads to a good ruffling result in the thread. By means of the thread train Force sensor 63, the yarn tension immediately before entering the heater 18 measured. This measured value is the control device 49 abandoned, the at Detecting a deviation between a setpoint the drive motor 46 of the Drallstoprolle controls accordingly, so that the desired yarn tension established. With this arrangement, processes can be run that are extremely run low yarn tension. The thread is made by means of the second delivery mechanism 21 out of the false twist zone and then into a post-treatment zone e.g. for shrinkage treatment of the thread to the set heater 22 out. This could be It may also be an advantage that in front of the entrance of the set heater, an additional Supply mechanism is switched, so that an adjustment of the conveyor speeds (Lag) in the post-treatment zone is possible, which is independent of the Speed adjustment of the delivery of the false twist zone. Between the second delivery plant and the additional delivery plant before the set heater can Advantageously, a Tangeldüse be arranged in the yarn path to open the filaments to achieve better shrinkage treatment. After heat post-treatment the yarn is wound up to a cross-wound bobbin 25 of the take-up device 9.

The embodiment of the texturing machine according to the invention from FIG. 2 represents compared to the embodiment of Fig. 1, a further possibility of yarn tension measurement in the false twist zone. Here, the yarn tensile force sensor 63 is placed between the heater 18 and the cooling device 19. This variant is particularly advantageous if a predetermined to cool the thread Thread tension should be adjusted.

The embodiment of FIG. 3 shows a preferred embodiment, in the swirl stop roller 30 pulls the thread 4 directly from the supply spool 7. In this case, the twist stop device acts as the first delivery mechanism 13. The thread speed in the false twist zone is by the conveying speed of the conveyor roller 30 and the second delivery mechanism 21 is set. To a certain starting power to obtain the frictional forces on the conveyor roller 30, could be a thread brake between the head thread guide 12 and the conveyor roller 30 50 be arranged. This embodiment is characterized by a particularly simple structure and procedure.

In Fig. 4 to 6 is a first embodiment of a twist stop roll or conveyor roller shown, for example, in the embodiments of the invention False twist texturing machine of Fig. 1 to 3 could be used. The Drallstopeinrichtung consists of a conveyor roller 30, the one on its circumference zig-zag-shaped yarn track 31 has. The zig-zag threadline 31 is formed by a plurality of on the peripheral surface 36 of the conveyor roller Thread guide 37 and 38 alternately in the circumferential direction at regular intervals are placed on each other (see Fig. 5). The yarn guide 37 are with their Leading edge 39 of the end face 40 of the conveyor roller 15 assigned. The thread guides 38 are associated with their leading edge 45 of the opposite end face 41. The leading edges 39 dund 45 adjacent thread guide are offset from the center plane 43 overlapped, so that a thread, the leading edges 39th and 45, a zigzag-shaped threadline around the circumference of the conveyor roller 15 occupies. As can be seen in Fig. 5, the leading edges 39 and 45 of the adjacent yarn guide formed such that a notch 44 is formed in the tapered thread 4 is caught and at the respective leading edge 39th or 45 can slide on the peripheral surface 36. Through the multiple wrap At the yarn guides 37 and 38 thus a frictional force is generated, which is the Swirl moment of the thread absorbs. The conveyor roller 30 is provided with a drive shaft 29 fixedly coupled, which is driven by a drive (not shown). The Thread tension in the thread is caused by the sliding friction between the thread 4 and the peripheral surface 36 and by the sliding or static friction between the thread 4 and the thread guide elements 37 and 38 influenced. As another Parameters for influencing the yarn tension can be the wrap angle predetermined between the thread inlet and the thread outlet on the conveyor roller 30 become. The thread guide elements 37 and 38 are preferably made of ceramic Materials.

The conveyor roller is attached to the end of a drive shaft 42. Here is the Conveyor roller 30 via a positive plug connection fixed to the drive shaft 42 coupled. The connector between the conveyor roller 30 and the drive shaft 42 is secured by means of a retaining ring 47. This can be a replacement perform the conveyor roller 30 with little effort.

It should be noted at this point that the required for promotion Frictional force in the delivery mechanism according to the invention also by clamping the thread could be generated.

It is also possible, the mutual arrangement of the thread guide elements 37th and 38 perform uneven, so that, for example, the wrap in Portions of the conveyor roller by two successively arranged guide elements one slice per guide element is halved.

The design of the conveyor rollers 30 is such that the yarn tension forces in a Process stage must be applied, safely transmitted and a slip between the thread 4 and conveyor roller 30 is avoided to from processing point to Processing point Same delivery conditions as a prerequisite for a good product result to accomplish. This is achieved in particular by the fact that the Yarn track 31 runs on a geometrically clearly defined diameter and thereby accurately reproducible speed from delivery plant to delivery plant. and draw ratios are present. The parameters can be the Roller diameter, the number and thus the pitch of the thread guides on the Roller circumference, the roll width and further by the selected material of Guide surfaces and by the arrangement of the conveyor rollers in the yarn path of Wrap angle between Fadenein- and thread outlet to be changed. Regardless of the thread material (titer, residual tension), the yarn delivery speeds can be as well as the thread input voltages individually at each processing point to adjust. This adjustment is especially at the beginning of the process for threading advantage to thread tension peaks in the thread too avoid.

In Fig. 7, another example of a twist stopper is shown. Here is the Spiral stopper by two coaxial with each other attached to a drive shaft 71 Slices 72 and 73 formed. The discs have on the facing each other Pages on the outer edge of the thread guide elements 37 and 38. The thread guide elements 37 each have a leading edge 39, which in a circumferentially extending guide surface 69 ends. The offset opposite Thread guide elements 38 have the thread guide edges 45, which are also in a circumferentially extending guide surface 75 end. The guide surfaces 69 and 75 are on a diameter and thus form one circumferential support surface for the thread. The thread guide elements 37 are over a guide 28 coupled to the disc 72. The thread guide elements 38 are also coupled via a guide 74 with the disk 73. By radial adjustment the thread guide elements, it is thus possible, the diameter of to change the guide surfaces 69 and 75 formed contact surface of the thread. Furthermore, the discs 72 and 73 are mutually displaceable, so that the Cover thread guide edges 39 and 45 more or less strong. This will an increase of Fadenumschlingung on the thread guide elements 37 and 38th reached. Thus, in addition to the variable speed of rotation are other parameters for the twist stop device available to the thread tension of the thread to influence.

FIG. 8 shows a further exemplary embodiment of a swirl stop roller. in this connection the thread guide elements 37 are connected to each other by a circumferential ring. The thread guide elements 38 are also on a circumferential ring coupled together. The two annular thread guide elements are here with the projecting leading edges 39 and 45 offset from each other in such a way arranged that they mesh. As a result, a notch 44 is formed, in which a incoming thread is initiated. By the deflection by means of the guide edges 39 and 45, the thread is then forced into a zig-zag threadline. The thread lies on the circumferential guide surface 69. The wrap of the thread at the leading edges 39 and 45 can in this case by axial Move the thread guide elements 38 by an adjustment 68 done. The thread guide elements 38 are in this case via a guide 67 with the conveyor roller 30 connected. The conveyor roller 30 is in turn on a drive shaft 71st attached. To secure the connection between the conveyor roller 30 and the Drive shaft 71 is a locking ring 47 on the shaft end of the drive shaft 71 attached.

For the embodiments of the false twist texturing machine according to FIGS. 9 and 10, the following description applies.

The false twist texturing machine consists of a gate frame 2, a process frame 3 and a winding frame 1. Between the process frame 3 and the winding frame 1, an operation gear 5 is formed. On the opposite to the operating gear 5 Side of the winding frame 1, the gate frame 2 at a distance from the winding frame 1 arranged. Between the winding frame 1 and the gate frame 2 is thus a Doffgang 6 is formed.

The false twist texturing machine has in the longitudinal direction - in the figures is the Drawing plane equal to the transverse plane - a variety of processing points on for one thread per processing point. Take the rewinders a width of three processing points. Therefore, each three rewinders 9 - will be discussed later - in a column on top of each other arranged in the winding frame 1.

Each processing point has a supply spool 7, on which a thermoplastic Thread 4 is wound up. The thread 4 is a head thread guide 12 and a Deflection pulley 11 or a yarn guide under a certain tension through the first delivery 13 deducted. In the embodiment of Figures 9 and 10, the thread between the gate frame 2 and the first delivery 13 without Guided pipe. However, in this case, pipe guides for Purpose of transporting the thread from the supply spool to the operation gear used become.

In the yarn path in front of the first delivery mechanism 13, a thread cutter 14 is arranged. By the thread cutter 14, the thread can be cut when in the process between the first delivery 13 and the winding faults occur.

The first delivery mechanism is here designed as a conveyor roller 30, which on their Has a zig-zag-shaped yarn groove 31, as in the following Description of Figures 3 to 6 is described. Here, the conveying roller 30 simultaneously used as a twist stop to the by false twister 20 in the thread to stop generated swirl. Each processing point is in each case a conveyor roller 30 assigned. The conveyor roller 30 is by means of a single electric drive (here not shown). The conveyor roller 30 and the drive are via a holder 15 connected to a Anlegearm 16. At the Anlegearm here is also attached in the yarn path before the conveyor roller 30 arranged thread cutter 14. The feed arm 16 is connected to a carriage 32. The carriage 32 is by a linear drive along the guide 33 between a - as shown in Fig. 9 - Operating position 34 and an operating position 35 moves. Thus, the Thread at the beginning of the process by an operator manually applied to the conveyor roller 30 become. Subsequently, the conveying roller 30 by means of the applying device 17th moved into its operating position 34.

However, there is also the possibility that the drive, for example drives a group of conveyor rollers, fixedly mounted on the machine frame. The conveyor rollers would then be coupled in their respective operating position with the Drive.

However, it is also possible that the first delivery station arranged stationary in the machine is and effective, for example, over a multi-processing Central drive is driven. At the beginning of the process is thus by means of a s.der Anlegevorrichtung movable yarn guide the thread from the operating position led to the delivery plant. Thereafter, the thread is applied to the delivery mechanism.

It should be expressly mentioned that the first delivery mechanism by other thread-promoting Means, e.g. Delivery shafts or godets, can be executed.

In the thread running direction behind the first delivery mechanism 13 is a first, elongated Heater 18, through which the thread 4 runs, the thread on a certain temperature is heated. The heater could be used as a high temperature heater be listed, in which the heating surface temperature is above 300 ° C.

Behind the heater 18 is a cooling rail 19. Here, the heater 18 and the cooling rail 19 in a plane one behind the other arranged such that a essentially sets straight threadline. Behind the cooling rail 19 is located a schematically illustrated false twister 20th

Following the false twister 20, a second, further delivery mechanism 21 is used, to pull the thread 4 both over the heater 18 and the cooling rail 19. In Thread running direction behind the second delivery mechanism 21 is a second heater 22 (set heater). This set heater can be designed as a curved heating tube be, which is surrounded by a heating jacket, wherein the heating tube from the outside with Steam is heated to a certain temperature. The set heater 19 could be like the first heater 18 may also be designed as a high-temperature heater.

At the second heater 22 closes in the thread running direction a compensating pipe 29th seamless, as known from EP 0 595 086 (Bag. This will achieve that the thread 4 transports the atmosphere of the heater 22 in the equalizing pipe 29. In the kink between the heater 22 and the equalization pipe 29th is the yarn guide 28.

At the output end of the equalizing tube 29 is another third delivery mechanism 23. Before or behind is a preparation device (not shown), which repairs the thread 4 before entering a reel 9. In the winding device 9, the thread is on a take-up reel 25, which is a friction roller 24 is driven on the circumference, wound up. Before the friction roller 24 is located a traversing device 26, by means of which the thread 4 to the take-up reel 25th back and forth and wound on this as a cross winding.

In the false twist texturing machines according to the invention, one can below the second heater 22 instead of the equalizing pipe 29 first instead of the thread guide Arrange 28 the third delivery 23 and then a Tangeldüse and then a Provide further supply plant. This makes it possible, the treated thread with adjustable yarn tension in the Tangeldüse by swirling air to swirl and to mix the filaments together.

Above the compensating pipe 29 is a platform 27, which serves as an operating gear 5 serves. The operation 5 is between the process frame 3 and the winding frame 1 formed. Above the operating passage 5, the cooling rail 19 is arranged, which is essentially supported on the process frame 3. In the process rack are accordingly the yarn path of the false twister 20, the second delivery 21 and the second heater 22 is arranged. The process frame is thus characterized by the fact that to him only such machine parts are, which the thread treatment serve.

On the winding frame 1 is facing away from the operating gear 5 in the upper area Side the first delivery 13 immediately before the entrance of the first heater 18th arranged. The first heater 18 in turn is supported on the take-up frame 1. According to the yarn path is the third delivery mechanism at the lower end of the winding frame 23 fixed in the winding frame 1. Otherwise, the winding devices 9 arranged in the winding frame 3.

The winding device 9 has a bobbin 8, which is for receiving the full coil is used when on the winding a full take-up reel 25th has been generated. To remove the full bobbin 25, the spindle carrier is pivoted and the full bobbin is placed on a rolling track. The rolling track is part of the bobbin 8 8. Waiting for the roll-off the full coil 25 to the removal. Therefore, the rolling track of the bobbin 8 is on the side of the winding frame 1, which is adjacent to the doffing passage 6 and from the operation aisle 5 turned away. The Doffgang 6 extends along the winding frame 1 and is formed between the gate frame 2 and the winding frame 1. He serves the Decrease of the full bobbins waiting on the bobbin 8. Furthermore, everyone is Winding 9 associated with a sleeve feeder 10, in detail is no longer described. It is a sleeve memory, on which several Empty tubes are cached. If on the spindle carrier a Winding device 9 generates a full bobbin and the full bobbin on the bobbin memory has been stored, one empty tube is fed to the spindle carrier in each case and attached to it.

The arrangement of the frame parts is in the false twist texturing machine according to the invention such that the thread from the feed bobbin to the winding device describes a 6-shaped path. The threads are from the gate frame in a straight run in a plane over the Wikelgestell 1 to the process frame. 3 guided. Here, the first delivery mechanism 13 is so involved in the threadline, that the thread without substantial deflection of the guide roller 11 on the gate frame second is guided to the false twist unit 20 on the process frame 3. Through this very thread-gentle Yarn guide can texturing speeds greater than 1,200 be driven m / min.

The arranged between the first delivery mechanism 13 and the head thread guides 12 Guide roller 11 can also be replaced by a thread guide.

A particular advantage of the false twist texturing machine is that the process frame 3 is disposed on an outside of the machine. This can be - as shown in Fig. 10 - advantageously form a twin machine. Here are the Process racks of the machine halves arranged directly next to each other, so that the electric drive components for the false twister and the delivery mechanisms are integrated centrally in a arranged on the process frame control cabinet. The second half of the machine is thus set in mirror image to the first half of the machine.

The false twist texturing machine of Fig. 11 is in structure of the false twist texturing machine 9 very similar, so that the description of FIG. 9 reference is made to this point.

In the false twist texturing machine according to FIG. 11, the delivery mechanisms 13, 21 and 23 as a respective conveyor roller 30 executed on its periphery a zigzag-shaped Thread running groove 31, as previously in the description of the figures 4 to 6 is described. A processing point are the conveyor rollers 30.1, 30.2 and 30.3 assigned. The conveyor rollers 30 are each by means of a single electric drive 46 driven.

The conveyor roller 30.1 and the drive 46. 1 are connected via a bracket 15 with a Anlegearm 16 connected. At the Anlegearm here is also a threadline attached to the conveyor roller 30.1 arranged thread cutter 14. The investment arm 16 is connected to a carriage 32. The carriage 32 is driven by a linear drive along the guide 33 between a - as shown in Fig. 11 - operating position 34 and an operating position 35 moves. Thus, the thread at the beginning of the process be manually applied by an operator to the conveyor roller 30.1. Subsequently, the conveyor roller 30.1 by means of the application device 17 in their Operating position 34 proceed.

However, there is also the possibility that the drive 46.1 stationary on the machine frame is attached. The conveyor rollers 30.1 would then be in their respective Operating position can be coupled to the drive.

In order to further increase flexibility in the processing site, both the Winding device 9 and the false twist unit 20 regardless of the adjacent Machining points are driven. The winding device 9 has two drives for this purpose. The first drive is used to drive the friction roller 24. This drive is advantageously formed by an axis motor, which is in the axis the friction roller is integrated. the second drive is used to drive the traversing 26 used. This drive could be a stepper motor using a thread guide a belt drive back and forth. By this arrangement, the individual Setting possibility of the delivery plants to be used, different Making yarns within a texturing machine.

In Fig. 12 is a schematic cross section of another embodiment of the False twist texturing machine according to the invention shown. Here are the individual components the machine to the machine shown in Fig. 11 identical. It will In this regard, reference is made to the description of the embodiment of FIG. 11 reference. The arrangement of the components in the embodiment of FIG. 12 leads to a bending thread path between the heater 18 and the Cooling rail 19. The yarn is transported through the machine by the delivery works 13, 21 and 23. In this case, the thread 4 through the first delivery 13 of subtracted from the supply spool 7. Between the feed bobbin 7 and the first delivery mechanism 13, a yarn brake 50 is arranged so as to provide a minimum yarn tension build.

The delivery mechanisms 13, 21 and 23 are again each with a conveyor roller formed a zigzag-shaped yarn track on the circumference of the roll. Here are before and / or behind the conveyor roller 30 pulleys 11 arranged to the Umschlingungsgrad to fix on the conveyor roller. Each of the conveyor rollers 30 is by means of an electric motor 46 driven. The electric motors 46 of a processing station are connected to a control device 49. By the control device 49 are the drives 46, the respective target conveyor speeds the roles 30 abandoned. That between the conveyor roller 30.1 and 30.2 set stretch ratio is thus substantially constant held.

In addition to the thread speed, however, there is also the possibility of the conveyor rollers 30 depending on the thread tension to control. This could be a yarn tension sensor be arranged in or behind the false twist zone, its signals the control device 49 gives up.

Before the third delivery mechanism 23, a preparation device is arranged. The The preparation device here consists of a preparation roller 51. The preparation roller 51 is driven by the roller motor 52. The preparation roller 51 is arranged such that the thread 4 is tangent to its surface. Below the Preparation roller 51 is a trough 53 attached to the spin finish is filled. By rotation of the preparation roller 51 is thus preparation on the Surface of the roller from the tub 53 entrained and in contact with the thread 4 brought. This arrangement has the advantage that the threads of the processing site can be prepared individually, without the threads in the neighboring Bbearbeitungsstelle be influenced.

In Fig. 13 is another embodiment of a false twist texturing machine shown. The arrangement of the frame parts and components essentially corresponds the embodiment of FIG. 11. Thus, the description to Fig. 11 reference.

In the embodiment of the false twist texturing machine according to FIG. 13, the second heater 22 and the first heater 18 combined to form a heater module. For this purpose, the thread 4 after passing the false twist unit to the delivery plant 21 diverted by 360 °. Here, the thread 4 of an additional delivery plant 48 withdrawn from the second delivery mechanism 21 and the second heater 22nd promoted. The yarn tension required for postheat treatment is between set the delivery 48 and the third delivery 23. The thread 3 then enters from above into the winding device 9.

The delivery mechanisms 13, 21, 48 and 23 are formed by the conveyor rollers 30.1 to 30.4. Each of the conveyor rollers 30.1 to 30.4 is connected to a drive 46.1 to 46.4. The control of the motors 46 again takes place via a central control device (not shown here).

FIG. 14 shows a further exemplary embodiment of a control concept False twist texturing machine shown in Figure 11. In this arrangement, the in Longitudinal side of the machine adjacent first delivery 13.1, 13.2 and 13.3 per Processing site shown. The delivery works 13.1, 13.2 and 13.3 are each about a drive 46 driven. Each drive 46 is assigned a control device 49. This makes it possible to individually control each of the delivery plants. The control devices 49.1, 49.2 and 49.3 are provided with a central machine control unit 54 connected. The engine control unit 54 can thus in the Single control of delivery mechanisms 13.1, 13.2 and 13.3 intervene directly. This is one collective adjustment of delivery plants possible. Such an arrangement is also particularly suitable for a controlled power supply deceleration make. For this purpose, a coupled to the machine control device 54 Energy buffer activated to each thread supply, so that a controlled Braking is possible. The energy buffer is associated with the delivery plant Control device 49 connected.

To after the thread creation of the delivery works from a landing speed to switch the required operating speed, the control devices Timing functions specified, with which each of the delivery mechanisms controlled becomes. In particular, the speed ratio between the first delivery plant and the second delivery mechanism, which is the threading in the false twist zone determined just before reaching the final operating speed set within the processing station. The time function can be a ramped, progressive or even degressive change in the rotational speed cause.

In the embodiment of a control concept shown in FIG False twist texturing machine, the individual control devices 49.1, 49.2 and 49.3 into a single control. Such Arrangement is used in particular when only a collective adjustment the delivery works is required.

In particular, in the false twist texturing machine according to FIG. 11 at the first delivery plant to be able to make a gentle thread application, for example as shown in Figure 15 the delivery plant associated with a Fadenumlegeinrichtung 55. The Fadenumlegeinrichtung 55 may in this case consist of a pivot arm 56, which is pivotally mounted on a pivot axis 58. The pivot axis 58 is in Machine frame of the texturing machine attached. At the opposite free End of the pivot arm 56, a yarn guide 57 is attached. The thread guide 57 can penetrate the thread running plane by the pivotal movement of the pivot arm 56. Here, depending on the position of the pivot arm 56 of the thread 4 on the Thread guide 57 folded so that one in dependence on the position of the Schwenkarms adjusting wrap angle on the roller 30 sets. There the angle of wrap on the roller 30, the height of the compressive forces to be transmitted influenced, thus can be with the Fadenumlenkeinrichtung also the thread tension in the thread 4 influence. The pivot arm 56 could in this case with a Drive connected to a control device and a thread tension meter is switched in a control loop. By such a scheme leaves Any thread tension required by the process will be directly affected by size of the wrap angle on the roller 30.

In FIG. 16, another embodiment is a drive of a conveyor roller 30 shown. For this purpose, the conveyor roller 30 is mounted on a shaft 60. The shaft 60 is stored at a free end in a bearing 62 on the machine frame. At the opposite free end, the shaft 60 is coupled to a drive 59. Of the Drive 59 could be formed by a pneumatically operated turbine. In the portion of the shaft 60 between the conveyor roller 30 and the drive unit 59 engages an eddy current brake 61 on the shaft 60 at. Thus, can up easy way the peripheral speed of the conveyor roller to be controlled. The Drive unit 59 drives the shaft 60 with a constant drive torque at. The peripheral speed of the conveyor roller is now more or less controlled strong deceleration of the drive shaft 60.

FIG. 17 shows a further exemplary embodiment of a false twist texturing machine according to the invention shown. Here is a half of a semi-automatic machine False twist texturing machine shown. Both halves of the machine are mirror images are set to one another, only one half of the twin machine is shown in FIG and described.

The machine has - as already described above for Fig. 9 - a gate frame 2, a winding frame 1 and a process frame 3. In the gate frame 2 are more Feed bobbins 7 stacked on top of each other. Between the gate frame 2 and the winding frame 1, a control / Doffgang 5 is formed. Above the machine frames are the first delivery mechanism 13, the heater 18 in a plane and the cooling device 19 is arranged. A false twister 20 and a second delivery mechanism 21 are supported on the process frame 3. The process frame 3 is on the arranged to the gate frame opposite side of the winding frame. winding frame 1 and process rack 3 are joined directly to each other. In the process rack a second heater 22 is arranged below the second delivery mechanism 21. The Winding frame 1 serves to accommodate the winding device 9. Here are again a plurality of reeling devices stacked one above the other. In Each of the winders, the thread is wound into a thread bobbin 25. The thread bobbin 25 is arranged on a spindle which is driven by a friction roller 24 becomes. Before the yarn package a traversing device 26 is inserted in the yarn path.

In this arrangement, the first delivery mechanism 13 is formed by a conveyor roller 30. The conveyor roller 30 is connected to a drive (not shown here) on a height-adjustable Carriage 32 attached. The carriage 32 can along the guide 33 between an operating position 35 and the operating position 34 are moved.

In this arrangement, the thread 4 in the straight yarn path of the head thread guides 12 of the gate frame 2 to the conveyor roller 30 and passes from there into the False twist zone of the machine. The false twist zone is due to the false twist unit 20 and the conveyor roller 30 limited. Within the false twist zone are the heater 18 and the cooling device 19 arranged in a plane. At the exit of the Cooling device 19, the false-twisted yarn passes over a deflection roller 11 the false twist unit 20. The second delivery mechanism 21 leads the thread from the Falschdrallzone in the downstream second heater 22. From there passes the Thread via a third delivery mechanism 23 to the take-up device 9. In the take-up device 9, the thread is then wound into a thread bobbin 25. After the coils 25 are finished, the bobbin change is made by means of a doffer performed on the false twist texturing machine. There are several Handling devices arranged on the doffer, preferably pneumatically operate. When changing bobbins, the doffer moves into the control / Doffgang 5, so that by means of handling devices of the bobbin change in each take-up device 9 is performed simultaneously. To do this First, the threads combined into a bundle, cut and sucked. The full bobbins are unlocked and removed. In each take-up device Then an empty tube is inserted. The threads are inserted for winding. Each activity is performed by the handling devices of the doffers. The new winding process in the winding device can begin.

Even with this semi-automatic false twist texturing machine can be a special realize gentle yarn processing. By the arrangement of the first delivery plant immediately before the heater input of the heater 18 and above the gate frame 2, a threadline is realized with little deflections.

LIST OF REFERENCE NUMBERS

1

winding frame

2

creel frame

3

process frame

4

thread

5

service aisle

6

Doffergang

7

supply bobbin

8th

coil storage

9

takeup

10

Sleeve feeder

11

idler pulley

12

Yarn guide

13

first delivery plant

14

thread cutter

15

bracket

16

Anlegearm

17

applier

18

first heater, heating device

19

Cooling rails, cooling device

20

false twister

21

second delivery plant

22

second heater, set heater

23

third delivery plant

24

friction roller

25

up reel

26

Traversing device

27

platform

28

thread guides

29

balance pipe

30

Conveyor roller, swirl stopper

31

Yarn track

32

carriage

33

guide

34

operating position

35

operating position

36

peripheral surface

37

thread guides

38

thread guides

39

leading edge

40

front

41

front

42

drive shaft

43

midplane

44

notch

45

leading edge

46

Drive, engine

47

circlip

48

delivery mechanism

49

control device

50

thread brake

51

applicator roll

52

roller motor

53

tub

54

machine control

55

yarn deflection device

56

swivel arm

57

thread guides

58

swiveling axes

59

drive unit

60

wave

61

Eddy current brake

62

camp

63

Yarn tension sensor

65

Twist stop device

66

Spulhebel

67

guide

68

adjustment

69

guide surface

70

guide

71

drive shaft

72

disc

73

disc

74

guide

75

guide surface

Claims (28)

1. False twist texturing machine for texturing of thermoplastic yarns with a multiplicity of processing points, each comprising a supply bobbin (7), a first delivery mechanism (13), an elongate first heater (18), an elongate cooling rail (19), a false twisting unit (20), a second delivery mechanism (21) and a take-up device (9), characterized in that the first delivery mechanism (13), the first heater (18) and the cooling rail (19) are arranged within one plane successively in a flush manner for realizing a straight yarn course and that the first delivery mechanism (13) may be attended by means of a feeding apparatus (17).
2. False twist texturing machine according to claim 1,
   characterized in that
   the first delivery mechanism (13) are formed by a transport roller (30) around which the yam (4) is partially wound in a circumferential direction and which has at least one zig-zag yarn running track (31) at the circumference, and
   that the transport roller (30) is connected to a drive (46) and that each transport roller (30) of a processing point is drivable independently of the second delivery mechanism (21) of the processing point and independently of adjacent transport rollers of adjacent processing points.
3. False twist texturing machine according to claim 1 or 2,
   characterized in that
   the transport roller (30) may be coupled and/or is detachably connected to the drive (46).
4. False twist texturing machine according to one of claims 1 to 3,
   characterized in that
   the drive takes the form of an electric motor (46).
5. False twist texturing machine according to claim 3,
   characterized in that
   the drive comprises an Eddy current break (61) with a drive unit (59).
6. False twist texturing machine according to claim 1,
   wherein the false twist texturing machine comprising a creel frame (2), a winding frame (1) and a processing frame (3) is composed in such a way that a plurality of supply bobbins (7) are disposed one above the other in the creel frame (2) and that a plurality of take-up devices (9) are disposed one above the other in the winding frame (1), wherein the first delivery mechanism (13) and the first heater (18) are supported on the winding frame (1) and wherein the cooling rail (19) is disposed above an attending aisle (5) formed between the winding frame (1) and the processing frame (3),
   characterized in that
   the first delivery mechanism (13) is disposed on the side of the winding frame (1) that is facing away from the attending aisle (5) and the feeding apparatus (17) may be attended from the attending aisle (5).
7. False twist texturing machine according to claim 6,
   characterized in that
   the creel frame (2) is disposed opposite the winding frame (1) at the side of the first delivery mechanism (13), wherein a doffing aisle (6) is formed between the creel frame (2) and the winding frame (1).
8. False twist texturing machine according to claim 7,
   characterized in that
   the first delivery mechanism (13) withdraws the yarn (4) from the supply bobbin (7) via a guide roller (11) and delivers the yarn without deflection to the first heater (18).
9. False twist texturing machine according to one of claims 6 to 8,
   characterized in that
   the first delivery mechanism (13) is fastened in a holding device (15) which is firmly connected to a height-adjustable feeding arm (16) of the feeding apparatus (17), and
   that the first delivery mechanism (13) is displaceable by means of the height-adjustable feeding arm (16) between an attending position (35) and an operating position (34).
10. False twist texturing machine according to claim 9,
    characterized in that
    the drive (46) of the transport roller (30) is firmly connected to the height-adjustable feeding arm (16) of the feeding apparatus (17).
11. False twist texturing machine according to one of claims 6 to 10,
    characterized in that
    a yarn cutter (14) is disposed in the yarn course upstream of the first delivery mechanism (13).
12. False twist texturing machine according to one of claims 9 to 11,
    characterized in that
    the yarn cutter (14) is firmly connected to the height-adjustable feeding arm (16) of the feeding apparatus (17).
13. False twist texturing machine according to one of claims 6 to 12,
    characterized in that
    the first delivery mechanism (13) in each processing point is drivable by means of an individual drive.
14. False twist texturing machine according to one of the preceding claims,
    characterized in that
    the second delivery mechanisms (21) are formed by a transport roller (30, 2) around which the yarn (4) is partially wrapped in a peripheral direction and which has at least one zig-zag running track (31) at the periphery, that the transport rollers (30.1; 30.2) are connected in each case to a drive (46.1; 46.2) and that each transport roller (30.1; 30.2) of a processing point is drivable independently of the adjacent transport rollers of the processing point and independently of adjacent transport rollers of adjacent processing points.
15. False twist texturing machine according to one of claims 1 to 14,
    characterized in that
    the drives (46) of a processing point are connected to a control device (49) and are controllable independently of one another by the control device (49).
16. False twist texturing machine according to claim 15,
    characterized in that
    the control device (49) of a processing point is connected to a machine control unit.
17. False twist texturing machine according to one of claims 15 or 16,
    characterized in that
    the control device (49) of a processing point is connected to an energy store which, in the event of a power failure, enables a controlled braking of the drives (46).
18. False twist texturing machine according to one of claims 14 to 17,
    characterized in that
    the transport rollers (30) of a processing point during feeding of the yarn (4) are driven at a substantially identical speed.
19. False twist texturing machine according to one of claims 14 to 18,
    characterized in that
    the yarn (4) is wrapped around at least one of the transport rollers (30) of a processing point with an angle of wrap greater than or equal to 180°.
20. False twist texturing machine according to claim one of claims 1 to 19,
    characterized in that
    each processing point has, downstream of the second delivery mechanism (21), a second heater (22) and a third delivery mechanism (23) in the form of a transport roller (30.3).
21. False twist texturing machine according to claim 20,
    characterized in that
    the second heater (22) is supported on the processing frame (3) and the third delivery mechanism (23) is supported on the winding frame (1).
22. False twist texturing machine according to claim 21,
    characterized in that
    a further delivery mechanism (48) in the form of a transport roller (30) is disposed between the second delivery mechanism (21) and the second heater (22).
23. False twist texturing machine according to one of claims 1 to 22,
    characterized in that
    the take-up device (9) and the false twisting unit (20) of a processing point are driven by individual drives.
24. False twist texturing machine according to claim 23,
    characterized in that
    the friction roller (24) of the take-up device (9) is drivable by means of a drive disposed axially in the friction roller (24).
25. False twist texturing machine according to one of claims 23 or 24,
    characterized in that
    the reciprocating device (26) of the take-up device (9) is driven by a stepping motor.
26. False twist texturing machine according to one of claims 1 to 25,
    characterized in that
    a roller preparation device (51) is disposed upstream of the take-up device (9) and is driven by means of a roller motor (52).
27. False twist texturing machine according to one of claims 1 to 26,
    characterized in that
    the transport roller (30) at the periphery has a plurality of yarn guide elements (37, 38) which form the yarn running track (31) and with their guide edges (39, 45) contact the yarn (4) at the deflection points of the yarn running track (31).
28. False twist texturing machine according to one of claims 1 to 27,
    characterized in that
    a yarn tensioning device (50) is disposed in the yam course upstream of the transport roller (30) and that the yarn tensioning device (50) is adjustable for the purpose of varying the yarn tension.

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