EP1979513B1 - Apparatus for melt spinning and winding synthetic threads - Google Patents

Abstract

Disclosed is an apparatus for melt spinning and winding synthetic threads, comprising a spinning device (27), a treatment device (34), and a winding machine (35). The treatment device is provided with a take-off godet (14) for guiding the threads before the threads are fed and distributed to a plurality winding points (1.1 to 1.5) in the winding machine. The take-off godet (14) is disposed above the winding machine and guides the threads on the circumference such that the threads run parallel next to each other. The take-off godet is arranged transversal to a winding spindle (6.1), above the winding machine. The winding machine is equipped with a plurality of top thread guides (3.1 to 3.5) which are mounted upstream of the winding points and are located on a vertically extending feeding plane. In order to be able to guide the threads with as little friction as possible, the top thread guides of the winding points are mounted downstream of the take-off godet directly in the thread path in such a way that a maximum deflection angle of 15° is not exceeded when the threads are deflected onto the feeding plane.

Description

The invention relates to a device for melt spinning and winding of synthetic threads according to the preamble of claim 1.

A generic device for melt spinning and winding synthetic threads is from the WO 2004/015173 A1 known.

In the production of synthetic yarns, it is well known that the synthetic yarns are extruded, cooled and bundled in parallel with each other from a polymer melt into a plurality of filament strands in a spinning device. Subsequently, the threads are guided parallel in a treatment device preferably via godet systems, to be wound in the end in a winding machine parallel to coils. The threads are thereby guided from melt spinning to winding with different thread distances to each other. Thus, in each case a spinning distance is maintained in the spinning device between the threads, which is essentially caused by the Düseriteilungen the spinnerets packages. After cooling, the filaments are brought together to be passed through the treatment means at a substantially smaller treatment distance. The treatment distance is maintained substantially until before entering the winding machine between the threads. In the winding machine, a winding spacing between the threads is to be observed, which is essentially due to the coil widths of the coils of the individual winding units. The group of threads is thus spread apart from the treatment distance to the winding spacing.

In the transition regions between the spinning device and the treatment device and between the treatment device and the winding machine thus yarn guide means are provided which deflecting or deflecting allows the individual threads to the respective desired thread spacing. In addition, it must be ensured that the threads can be guided safely and without contact with one another in the devices, in particular in the godets of the treatment device. Furthermore, it should be ensured that the deflections generated by thread guide means do not generate any inadmissible thread tensions due to high wrap friction. In that regard, certain deflection angles have to be adhered to in particular at the externally guided threads in the transition areas. In the winding of the threads is aggravating added that any friction on the thread deflection leads to increase the yarn tension and thus affects the winding tension when winding the thread on the coil.

To optimize the yarn path newer developments are known, which relate in particular to the yarn transition from the treatment device to the winding machine.

From the WO 2004/015173 A1 a device is known in which the distribution of the threads via a Ablaufgalette which is arranged above the winding machines substantially transverse to a longitudinal axis of the winding machine in a horizontally oriented drainage plane. By placing the Ablaufgalette at a front end of the winding machine can make a distribution from the drainage level, so that small distances between the winding machine and the treatment device can be realized, leading to compact and thus easy to handle machine concepts.

From the WO 2004/074155 A1 Another device is known in which the distribution of the threads to the winding units of the winding machine by means of a laterally arranged to the winding machine vertically aligned Ablaufgalette. In this case, the threads are in a vertically oriented drainage plane guided, which is placed in relation to the winding units such that a simple deflection takes place in the winding units.

Both known devices provide possibilities for guiding the threads in the treatment device parallel to one another with the smallest possible treatment distance and then dividing them into the individual winding stations at a greater distance from one another. The devices known from the prior art employ thread guide means in order to obtain certain threadlines and deflections.

It is an object of the invention to further develop a device of the generic type such that a group of threads supplied by a treatment device can be supplied to the winding units of the winding machine with as little friction as possible and without substantial thread tension differences.

This object is achieved by a device with the features of claim 1.

Advantageous developments of the invention are defined by the features and feature combinations of the subclaims.

The invention is achieved by the proviso that upon deduction of a guided parallel to a godet coat of thread in a center plane the drain points of the outer threads on the circumference of the godet in the direction of the center plane are shifted and thus a convergence of the threads during the expiration of the godet surface is inevitable. It has been found that these effects have different effects depending on the deflection angle. It has thus been found that the run-off points of the running parallel threads on the godet surface at a maximum deflection angle of 15 ° to the center plane cause essentially unchanged or uncritical displacements of the drain points on the godet.

Thus, the task can be solved by the fact that the head thread guides the winding units, which are held in the vertically aligned feed level, are arranged directly in the yarn path of the Ablaufgalette such that upon deflection of the threads from the drainage plane formed by the godet, which rotates by 90 ° is formed to the inlet level, a deflection angle of 15 ° is not exceeded. The distribution of the threads from the treatment device to the winding machine can thus be advantageously carried out without any additional thread guide means. Due to the restriction of the deflection angle, the treatment distance of the threads in the treatment device, and in particular on the sequence flag, which is decisive for the parallel guidance, remains unchanged. The threads are led after the expiry of the Ablaufgalette directly into the traversing triangles of the winding units. The deflection of the threads and the limitation of the traversing range are determined by the head thread guide at the same time.

The constant position of the drainage points on the godet circumference, in particular of the outer most strongly deflected threads, can be further improved by the surface of the flow godet having a roughness in the range of a mean roughness value of 0.2 μm to 0.8 μm. Preferably, a range of 0.4 microns to 0.65 microns is set to obtain high adhesions of the filaments usually wetted with a spin finish on the godet surface. Higher surface roughness leads to inadmissible slippage, which hinders the guidance and treatment of the threads. In contrast, even smaller center roughness values require a considerable manufacturing effort of the godet surface.

To be able to wind a plurality of threads with commercially available winding machine, the development of the invention is particularly preferred in which the Ablaufgalette a guide means for guiding a plurality of parallel running threads is arranged, through which between the threads a thread spacing in the range of 2 mm to 8 mm is determined. This pre-determined by the guide means thread spacing thus provides the treatment of the threads in the treatment facility To be maintained thread spacing. Thus, short lengths and compact designs can be realized especially in single or multiple looped godets. Furthermore, even with a high number of threads, a distribution according to the invention without thread guiding means becomes possible.

As a guide in this case several rows of juxtaposed thread guide the Ablaufgalette be arranged in the yarn path, which are formed for example by ceramic pins or comb-shaped ceramic guide.

However, it is also possible to form the guide means directly by a plurality of radial guide grooves on the circumference of the Ablaufgalette. Thus, the threads are guided directly on the circumference of the godet in the guide grooves.

In a plurality of simultaneously guided threads, the development of the invention is preferably used, in which the clamping plane spanned by the head thread guide plane intersects the axis of the Ablaufgalette in the central guide region of the thread guide. Thus, even with a plurality of threads, an advantageous distribution can be performed without mutual obstruction of the thread guide. In order to obtain a symmetrical deflection of the outer threads, however, it is recommended to place the inlet level asymmetrically to the guide area.

The treatment device preferably comprises a plurality of driven godets for guiding and stretching the threads, wherein the sequence godet is associated with at least one second godet in the thread run. This allows the drainage godet to be fully integrated into the treatment facility without the need for additional guide godets. In this case, godet systems can be used, which performs a partial drawing or a full drawing of the threads.

However, it is also possible to use the Ablaufgalette regardless of the treatment facility exclusively for the distribution of the threads.

In order to be able to carry out the swirling of the threads, which is usually carried out before winding, irrespective of the winding tension, according to an advantageous development of the invention, a swirling device is arranged between the sequence godet and the associated godet, wherein the threads are swirled parallel to one another in synchronism. The tension adjustments required to swirl the threads are made between the godets.

To further minimize the thread friction is provided according to a preferred variant of the invention to form the head thread guide in the winding machine by each freely rotatable guide rollers whose roller axes are aligned substantially orthogonal to a winding spindle of the winding machine. Thus, even larger thread deflections can be performed with low friction, so that a selected for the distribution of the threads distance between the Ablaufgalette and the head thread guides can be set low.

In order to obtain a reliable guidance of the tapered threads in guide rollers with substantially smooth Führungsmaechten, the formation of the device according to the invention is particularly advantageous, in which the roller axes of the guide rollers depending on the respective deflection angle of the associated thread have a slope relative to the axis of the Ablaufgalette. This makes it possible to run the threads substantially at right angles to the guide rollers.

However, the guidance of the threads can also be improved in that the guide rollers each have on the circumference a groove-shaped guide track in which the tapered thread is guided.

Due to the small number of thread guide means in stationary operation, the development of the invention is particularly important to the thread guide during a process start, a process interruption and / or a bobbin change in the winding machine to perform. Thus, one or more auxiliary devices are provided, which can be selectively activated and manipulated by an operator in order to lay and guide the threads in the devices or to ensure the guidance of the threads during a process interruption or a bobbin change at the respective devices.

The device according to the invention has the particular advantage that in each of the winding units, the supplied yarn is fed into spooling points in a substantially low-friction manner. In this case, only the deflection caused by deflection of the thread on the head thread guide thread tension structure occurs, but which is essentially the same at each winding unit.

The device according to the invention is explained in more detail below with reference to some embodiments with reference to the accompanying figures.

Fig. 1

schematisch eine Seitenansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung

Fig. 2

schematisch eine Vorderansicht des Ausführungsbeispiels aus Fig. 1

Fig. 3

schematisch ein Teilausschnitt einer Draufsicht des Ausführungsbeispiels aus Fig. 1

Fig. 4

schematisch eine Teilansicht einer Draufsicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung

Fig. 5 und Fig. 6

weitere Ausführungsbeispiele der erfindungsgemäßen Vorrichtung

It represents

Fig. 1

schematically a side view of a first embodiment of the device according to the invention

Fig. 2

schematically a front view of the embodiment of Fig. 1

Fig. 3

schematically a partial section of a plan view of the embodiment of Fig. 1

Fig. 4

schematically a partial view of a plan view of another embodiment of the device according to the invention

Fig. 5 and Fig. 6

further embodiments of the device according to the invention

In the Fig. 1 . 2 and 3 a first embodiment of the device according to the invention is shown in several views. In Fig. 1 is the device in a side view, in Fig. 2 in a front view and in Fig. 3 shown in a partial section of a plan view. The following description applies, insofar as no explicit reference is made to one of the figures, for all figures.

The device according to the invention is composed of a spinning device 27, a treatment device 34 and a winding machine 35, wherein a plurality of synthetic threads are produced parallel to each other. For this purpose, several spinnerets are contained on the underside of a heated spinneret 28 in the spinning device 27, which are connected via a melt supply 29 with a melt source, for example an extruder. In the embodiment, a total of five spinnerets 30.1 to 30.5 are arranged in rows next to one another. The number of spinnerets is exemplary, so fewer or more threads can be spun simultaneously by means of a spinning device. Each of the spinnerets 30.1 to 30.5 has a plurality of nozzle bores for extruding one filament bundle of a multifilament yarn out of a melt supplied via the melt feed. Before the individually extruded filament strands of the filament bundle are brought together to form the respective threads 2.1 to 2.5, the filament bundles pass through a cooling shaft 31 arranged below the spinning beam 28. The cooling shaft 31 is combined with an injection 32, so that within the cooling shaft 31 a cooling air flow onto the filament bundles acts. The cooling air flow can - as shown - are generated by a cross-flow blowing. However, it is also possible to generate the cooling air flow through a cooling cylinder with a Umumanblasung from outside to inside or from the inside out.

In the outlet region of the cooling shaft 31, a preparation device 39 and several yarn guides 40 are arranged in order to bring the filament bundles together to form the respective yarns 2.1 to 2.5. A chute 33 immediately adjoins the cooling shaft 31 in order to guide the threads 2.1 to 2.5 to the treatment device 34.

Below the chute 33, a yarn guide 41 and a yarn collecting device 37 is arranged, wherein the yarn guide 41 to each of the threads 2.1 to 2.5 forms a yarn guide, through which a treatment distance is set in each case between the threads 2.1 to 2.5. For this purpose, the threads 2.1 to 2.5 are brought together via the thread guides 40 out of the spinning division onto the thread guide strip 40.1 to the treatment distance.

The yarn guide 41 is associated with the yarn collecting device 37, which are brought together by the yarn sheet at yarn breakage and discharged through a suction. The thread collecting device 37 has a movable guide means and a suction to collect the threads 2.1 to 2.5 at thread break can. Such device are well known and, for example, in the EP 1 049 823 B1 described.

The treatment device 34 comprises at least one Ablaufgalette 14, which is directly upstream of the winding machine 35. The Ablaufgalette 14 is arranged in the region of an end face of the winding machine, wherein the spinning device 27 and the Ablaufgalette 14 are arranged transversely to a longitudinal axis of the winding machine. Such a device is known from EP 1 527 217 known, so that their content is hereby incorporated by reference.

In addition to the process godet 14, the treatment device 34 has an upstream second godet, which is referred to in this example as Abzugsgalette 36. The withdrawal godet 36 pulls the threads 2.1 to 2.5 from the spinning device 27. The withdrawal godet 36 and the Ablaufgalette 14 are each driven by a godet drive 42. Here, the peripheral speeds of the godet roll 36 and the Ablaufgalette 14 may be set depending on the process and thread type with a difference. The threads 2.1 to 2.5 are guided in an S-shaped threadline with the predetermined treatment distance between the threads parallel over the circumference of the Abzugsgalette 36 and the Ablaufgalette 14.

Below the treatment device 34, the winding machine 35 is arranged. The winding machine 35 has a total of five winding units 1.1 to 1.5, which are formed side by side in the winding machine. In each of the winding units 1.1 to 1.5, one of the threads 2.1 to 2.5 is fed in each case and wound into a coil. The structure of the winding units 1.1 to 1.5 is formed identically, so that the basic structure is described on the basis of laid to an operating side winding unit 1.1.

The winding unit 1.1 has a traversing means 4, through which a supplied thread 2.1 is guided back and forth within a traverse stroke. The traversing means 4 could, for example, by a Kehrgewindechangierung, in which a traversing yarn guide back and forth within a traverse stroke, or a Flügelchangierung with several oppositely driven wing tips, the thread pulling back and forth. The traversing means 4 is preceded by a head thread guide 3.1, which forms the tip of a so-called traversing triangle. The head thread guide 3.1 forms the inlet into the winding unit 1.1.

For winding the yarn 2.1 in the winding unit 1.1, a winding tube 9 is clamped on the circumference of a driven winding spindle 6.1. The winding spindle 6.1 extends over all adjacent winding units 1.2, 1.3, 1.4 and 1.5, so that in each of the winding units 1.1 to 1.5, the supplied yarns 2.1 to 2.5 are wound simultaneously.

For depositing the thread 2.1 on the surface of the spool 8.1 in the winding unit 1.1, a pressure roller 5 is arranged between the traversing means 4 and the winding spindle 6.1. The pressure roller 5 also extends over the entire length of the winding units 1.1 to 1.5. The thread 2.1 is placed after Teilumschlingung on the circumference of the pressure roller 5 on the surface of the coil 8.1.

In the winding units 1.1 to 1.5, the head thread guides 3.1 to 3.5 are each formed by freely rotatably mounted guide rollers 11.1 to 11.5. The guide rollers 11.1 to 11.5 are aligned in the winding units 1.1 to 1.5 respectively with their roller axes orthogonal to the winding spindle 2.1. The guide rollers 11.1 to 11.5 are held on a support 12, which is connected to a machine frame 10. The bearing of the guide rollers 11.1 to 11.5 is preferably formed by a low-friction air bearing, in order to obtain no additional structure of thread tension on the threads.

The machine frame 10 serves to receive and fix the traversing means 4, the pressure roller 5 and the winding spindle 6.1. In this embodiment, the pressure roller 5 is held by a rocker 13 pivotally mounted on the machine frame 10. The winding spindle 6.1 is cantilevered in a Spulrvolver 7, which is rotatably held in a machine frame 10. The Spulrevolver 7 holds offset by 180 ° to the winding spindle 6.1 a second winding spindle 6.2 in order to perform a continuous winding of the threads in the winding units 1.1 to 1.4 can. The winding turret and the winding spindles 6.1 and 6.2 each drives (not shown here) are assigned.

To distribute the threads 2.1 to 2.5, the sequence godet 14 is assigned directly to the head thread guides 3.1 to 3.5. In contrast, the drain godet 14 is arranged in a horizontally oriented run-off plane 43 above the head thread guide 3.1 to 3.5, the axis of the run godet 14 transverse to the longitudinal axis of the winding machine 35 and transverse to the winding spindle 6.1 is aligned. The Ablaufgalette 14 is held in the region of the end face of the winding machine 35, so that the threads 2.1 to 2.5 are performed at the end of the Ablaufgalette 14 laterally next to the head thread guides 3.1 to 3.5.

To further explain the distribution of the threads 2.1 to 2.5 of the treatment device 34 to the winding machine 35 is in Fig. 3 a partial section a plan view shown in which only the decisive for the distribution of the threads furnishing items such as the Ablaufgalette 14 and the head thread guides 3.1 to 3.5 are shown.

The head thread guides 3.1 to 3.5 are each formed by the guide rollers 11.1 to 11.5, which are freely rotatably mounted respectively on an axis 15. The guide rollers 11.1 to 11.5 are held on the carrier 12, wherein the guide rollers 11.1 to 11.5 each have an identical distance from the traversing means, not shown here. The head thread guides 3.1 to 3.5 form a vertically aligned feed level 44, in which the threads 2.1 to 2.5 are guided. For this purpose, the threads guided parallel to the run-off plane 43 must be deflected by the circumference of the run-off godet 14, depending on the position of the threads. The drainage level 42 corresponds to the drawing level of Fig. 3 or a parallel plane for this purpose. In the exemplary embodiment, the threads 2.1 to 2.5 are guided in the order on the godet casing of the drain godet 14 that the first yarn 2.1 is held at the free projecting end of the Ablaufgalette 14 and held parallel to each other in the order of the reference numerals, so that the thread 2.5 is guided on the bearing-side end of the Ablaufgalette 14. In the distribution of the threads 2.1 to 2.5 on the individual winding units, it is necessary that after the expiration of the Ablaufgalette 14, the threads must be deflected by a deflection angle α to the feed level 44 back. The deflection angle α thereby represents an angle of the drainage plane 43 projected triangle, which adjusts between the thread and a surface line of the Ablaufgalette 14. For the deflection of the thread 2.1 to the guide roller 11.1 the deflection angle α is exemplified.

At the in Fig. 3 illustrated embodiment, the feed level 44, in which the head thread guide 3.1 to 3.5 are arranged, arranged substantially centrally to the guide portion of the threads on the shell of the Ablaufgalette 14. Thus, the middle thread 2.3 can be guided without deflection directly in the feed plane 44. Depending on the distance of the threads 2.2, 2.3 and 2.5 to Feed level 44 is a deflection of the threads in the feed level 44 to the corresponding head thread guides 3.2, 3.3 and 3.5.

In order to ensure a stable flow point on the circumference of the Ablaufgalette 14 in the deflection of the threads in particular the deflection of the outer threads 2.1 and 2.5, only a limited deflection is possible. It has been found that at deflection angles α in the range of a maximum of 15 °, there are no significant yarn displacements on the circumference of the take-off godet 14. At larger deflection angles, however, occurs on a shift of the drainage points in particular of the outer threads, which leads directly to a merging and contact of the threads on the circumference of the Ablaufgalette 14.

In order to improve the adhesion of the moistened by a spin finish threads on the godet surface of the runoff godet 14, the surface of the runoff godet 14 is provided on the casing with a roughness which is in the range of a mean roughness value R _a of from 0.2 microns to 0.8 microns , This enables stable thread guides within the treatment device, which even allow for thread pitches A during the treatment of the threads of 2 mm. Thus, the use of commercially available winding machines would be possible to accommodate a variety of threads directly from a Ablaufgalette 14 can. Usually, the thread spacings between the threads guided in parallel in the treatment device are selected within a range of 2 mm to 8 mm. From the in Fig. 3 The representation shown can be seen that both the number of threads and the thread spacing between the threads and the distance of the head thread guide 3.1 to 3.4 from the flow point of Ablaufgalette 14 have a significant influence on the respective deflection angle. In that regard, depending on the manufacturing process and thread type each optimized combinations can be selected.

The in the Fig. 1 to 3 The device shown is particularly suitable for producing preoriented threads to so-called POY games. By the essentially Without thread guide elements running distribution of the threads from the treatment device 34 to the winding machine 35, the threads can be wound up with low thread tensions and lead. Due to the design of the head thread guide as guide rollers even the required deflection of the threads in the feed level is performed very low friction. Thus, the device is suitable both for very fine denier and for coarse yarn titer.

In Fig. 4 is a further embodiment of the device according to the invention shown as partial sections of a plan view, wherein the embodiment is identical to the previous embodiment, so that reference is made to the preceding description and at this point only the differences are shown.

The Ablaufgalette 14 has to guide the threads 2.1 to 2.5 each per thread a guide groove 47 which is formed circumferentially radially on the circumference of the Ablaufgalette 14. The threads 2.1 to 2.5 are each guided in the groove bottom of the guide grooves 47. This also allows very tight thread pitches A, for example, 2 mm safely adhere to the circumference of the Ablaufgalette 14.

After expiration of the threads 2.1 to 2.5 of the Ablaufgalette 1.4 they are guided in the feed level 14 to the individual guide rollers 11.1 to 11.5. In this case, in particular, the guide rollers, which are assigned to the outer threads 2.1 and 2.5, arranged in their position such that the roller axis 15 of the guide roller 11.1 to 11.5 relative to the axis of Abzugsgalette 14 has a tendency to record the tapered threads as straight as possible , Thus, the roller axis 15 of the guide roller 11.1 on an inclination angle β ₁ , which allows a substantially rectilinear feed of the thread 2.1 to the guide roller. The guide roller 11.5, in contrast, has an angle of inclination β ₂ , which is formed opposite due to the opposite deflection of the thread 2.5. Due to the smaller deflection of the thread 2.5 of the inclination angle β ₂ in amount is formed smaller than the inclination angle β ₁ of Guide roller 11.1, which receives the more strongly deflected thread 2.1. Due to the small deflection, the guide rollers 11.2 to 11.4 held without inclination parallel to the godet axis of the Ablaufgalette. In order to make the inclination angles β ₁ and β _{2 of} the guide rollers 11.1 and 11.5 the same size, the sequence godet 14 can also be arranged such that the feed plane 44 spanned by the head thread guides 3.1 to 3.5 is asymmetrical to the guide region of the threads on the circumference of the godets lies.

In Fig. 5 and 6 Further embodiments of a device according to the invention are shown in which substantially the treatment facilities are formed by different godet systems. The structure and arrangement of the spinning device and the winding machine are substantially identical to the previous embodiment according to Fig. 1 to 3 , so that only the differences to the treatment facilities will be explained below.

At the in Fig. 5 illustrated embodiment of the device according to the invention, the treatment device is formed by a Abzugsgaletteneinheit 45 and a draw godet unit 46. The Abzugsgaletteneinheit 45 has two godets 24.1 and 24.2, which are each driven by a separate godet drive (not shown here). The Abgabgaletteneinheit 45 is formed by the Ablaufgalette 14 and one of the Ablaufgalette 14 associated third godet 24.3. The Ablaufgalette 14 and the godet 24.3 are also driven independently. The withdrawal godet unit 45 and the draw godet unit 46 are each looped around several times by a group of yarns, the draw godet unit 45 pulling off the group of yarns on the spinning device 27 arranged above the treatment device 34. Between the withdrawal godet unit 45 and the draw godet unit 46, a differential speed is driven, so that the yarn sheet between the godet 24.1 and the Ablaufgalette 14 are stretched. For this purpose, the godets 24.1 and 24.2 of the withdrawal godet unit 45 are preferably designed to be heated. After stretching The threads 2.1 to 2.5 are guided directly from the Ablaufgalette 14 to the head thread guides of the winding machine 35. For this purpose, the sequence godet 14 is arranged above the winding machine in a horizontally oriented discharge plane 43. The Ablaufgalette 14 is held in this case in the central region of the winding units 1.1 to 1.5. After expiration and deflection of the threads of the Ablaufgalette 14, the threads are 2.1 to 2.5 out in the head thread guide 3.1 to 3.5 of the winding machine 35. The head thread guides 3.1 to 3.5 are formed in this embodiment by yarn guides, which have an eyelet for guiding the threads. The head thread guides 3.1 to 3.5 are immediately downstream of the traversing means for reciprocating and laying the threads.

This in Fig. 5 illustrated embodiment of the device according to the invention is particularly suitable to produce fully drawn threads. The threads are swirled before winding between the Ablaufgalette 14 and the godet 24.3 by the swirling device 38. For this purpose, the threads are guided parallel to one another via the withdrawal godet unit 45 and the draw godet unit 46, wherein the set thread distance is formed in the range from 2 mm to 5 mm. In that regard, compact sizes are achieved even with multiple wraps of the godets.

At the in Fig. 6 In the embodiment shown, the sequence godet 14 of the treatment device 34 is used both for withdrawing the threads 2.1 to 2.5 from the spinning device and for distributing the threads into the winding machine 35. The Ablaufgalette 14 is identical in construction and arrangement to the embodiment according to Fig. 1 to 3 , wherein in the embodiment shown here the Ablaufgalette 14 is associated with a second Galette. The second godet 24.1 and the Ablaufgalette 14 are repeatedly wrapped by the yarn sheet, wherein in the last Fadenumschlingungen between the godets 24.1 and the Ablaufgalette 14 a swirling device 38 is arranged. Due to the multiple wrap of the Ablaufgalette 14 and the associated godet 24.1 greater withdrawal forces to pull off the threads are 2.1 to 2.5 the spinning device produced. In this case, the expiration godet 14 and / or the second godet 24.1 can be designed to be heatable. It is also possible to replace the second godet 24.1 by a non-driven freely rotatable overflow roller.

The in the Fig. 1 to 6 shown embodiments of the device according to the invention are exemplary in the construction and choice of the individual process units. The invention also covers similar device, which differ in the construction and choice of the individual processing units, but waived entirely between a last Ablaufgalette and the head thread guide a winder on thread guide means, the Ablaufgalette is held substantially transversely directed to the longitudinal axis of the winding machine.

LIST OF REFERENCE NUMBERS

1.1 ... 1.5

winding station

2.1 ... 2.5

thread

3

Yarn guide

4

Traversing means

5

pressure roller

6.1, 6.2

winding spindle

7

spindle turret

8.1 ... 8.5

Kitchen sink

9

winding tube

10

machine frame

11.1 ... 11.5

leadership

12

carrier

13

wing

14

Ablaufgaletten

15

roller axis

24

Galette

25

Guide roll

27

spinner

28

spinning beam

29

melt feed

30.1, 30.2 ... 30.5

spinneret

31

cooling shaft

32

quenching

33

chute

34

treatment facility

35

winding machine

36

godet

37

Yarn collection device

38

swirling

39

dissector

40

thread guides

41

Thread guide bar

42

Galettenantreib

43

execution level

44

Intake level

45

Abzugsgaletteneinheit

46

godet

47

guide grooves

Claims (12)

1. Apparatus for melt spinning and winding up synthetic yarns, the apparatus comprising a spinning appliance (27), a treating appliance (34) and a windup machine (35), the treating appliance (34) comprising a runoff godet (14) for guiding the yarns (2.1 - 2.5) before entry and distribution of the yarns into a plurality of winding stations (1.1 - 1.5) of the windup machine (35), the runoff godet (14) being arranged above the windup machine (35) and guiding the yarns in a parallel side by side arrangement on its circumference, wherein the runoff godet (14) being arranged transversely to a winding spindle (6.1) of the windup machine (35) and 90° twisted relative to a vertically oriented runup plane (44) and wherein the windup machine comprising a plurality of head yarn guides (3.1 - 3.5) which are disposed upstream of the winding stations (1.1 - 1.5) and are arranged in the vertically oriented runup plane (44),
   characterized in that the head yarn guides (3.1 - 3.5) are disposed downstream of the runoff godet (14) immediately in the yarn path and such that on deflection of the yarns (2.1 - 2.5) off the runoff godet (14) into the runup plane (44) a maximum angle of deflection (α) to the runup plane (44) of 15° is not exceeded.
2. The apparatus according to claim 1, characterized in that the surface of the runoff godet (14) has a roughness in the range of an average roughness value (R_a) from 0.2 µm to 0.8 µm.
3. The apparatus according to claim 1 or 2, characterized in that the runoff godet (14) is assigned a guiding means (41, 47) for guiding a plurality of parallel running yarns (2.1 - 2.5) whereby a spacing in the range from 2 mm to 8 mm is determined between the yarns.
4. The apparatus according to claim 3, characterized in that the guiding means is formed by a plurality of yarn guides (41) arranged side by side in a row which are disposed upstream of the runoff godet (14) in the yarn path.
5. The apparatus according to claim 3, characterized in that the guiding means are formed by a plurality of radial guiding grooves (47) on the circumference of the runoff godet (14).
6. The apparatus according to any one of claims 1 to 5, characterized in that the runup plane (44) defined by the head yarn guides (3.1 - 3.5) intersects the axis of the runoff godet (14) in the middle guiding region of the yarn guiding system.
7. The apparatus according to any one of the preceding claims which is characterized in that the treating appliance (34) comprises a plurality of driven godets (24.1, 24.2, 36, 14) for guiding and drawing the yarns, wherein the runoff godet (14) being assigned at least a second godet (24.1, 36) in the yarn path.
8. The apparatus according to claim 7, characterized in that an entangling appliance (38) is disposed between the runoff godet (14) and the assigned godet (36, 24.1) whereby the yarns are synchronously entangled in a parallel side by side arrangement.
9. The apparatus according to any one of claims 1 to 8 which is characterized in that the head yarn guides (3.1 - 3.5) in the windup machine (35) are each formed by a freely rotatable guiding roller (11.1 - 11.5) whose roller axes (15) are oriented essentially orthogonally to a winding spindle (6.1) of the windup machine (35).
10. The apparatus according to claim 9, characterized in that the roller axes (15) of the guiding rollers (11.1 - 11.5) have an inclination (β) relative to the axis of the runoff godet (14) as a function of the respective angle of deflection (α) of the assigned yarn (2.1 - 2.5).
11. The apparatus according to claim 9 or 10, characterized in that the guiding rollers (11.1 - 11.5) each comprise in their circumference a flute-shaped guiding track in which the yarn running up is guided.
12. The apparatus according to any one of the preceding claims which is characterized in that there are provided one or more auxiliary guiding appliances whereby yarn guiding operations are executable during a processing start, a processing interruption and/or a bobbin change in the windup machine.

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