EP1486592A1 - Apparatus for spinning and treating synthetic filaments - Google Patents

Abstract

A hotmelt polymer textile spinning assembly (1) discharges thread to a texturizing station (16), with a number of sub-treatment stations (9, 12, 14, 15, 18) and a bobbin winder (21) held within a frame (6) under the spinning station. The position of the texturizing station (16) is adjustable in the frame (6) with respect to the spinning assembly (1). The fibre feed to the treatment station is supported by a lift/lower unit (10), which rises and falls in vertical rails (13) as required within the surrounding frame (6). The texturizing station has a thread treatment station (9) and a thread draw roller or galette (12), both located within the lift/lower unit (10).

Description

The invention relates to a device for spin-texturing synthetic threads according to the preamble of claim 1.

A generic device for spin-texturing synthetic threads is known from DE 199 29 817 A1.

In the known device, several synthetic are in a spinning device Spun threads from a melted polymer. Below the Spinning devices are several treatment devices in a machine frame arranged to a thread run. Here, the threads are pulled off withdrawn from the spinning device and the subsequent treatment devices fed into the machine frame. The treatment facilities include stretching, texturing, cooling, conveying, and Swirling the threads. At the end of the treatments, the threads are removed using a Winding device wound into coils.

In the known device are by the arrangement of the spinning device and the treatment facilities held in the machine frame the threads are fixed to threads made of certain polymers optimal to spin and treat. When using different types of polymer the problem arises that the freshly spun threads are different Have cooling behavior, so that the subsequent onset Treatment due to incorrect treatment routes is sometimes undesirable Results on the threads lead, which are particularly detrimental to the result the texturing of the threads.

It is therefore an object of the invention to provide a device for spin texturing synthetic To create threads of the generic type that use all common polymers for melt spinning and texturing the threads.

Another object of the invention is to provide a device which is as compact as possible To provide spin texturing of synthetic threads.

The object is achieved by a device with the features solved according to claim 1.

Advantageous further developments of the invention are due to the features and combinations of features of the dependent subclaims.

The invention is based on the finding that when using different Polymers the treatment and the texturing of the threads with identical in each case Arrangement of treatment facilities and treatment routes can take place within the machine frame. Only the treatment route, by the distance between the spinnerets of the spinner and the first treatment devices is defined below the spinning device and referred to here as the piecing section, has different features depending on the type of polymer Lengths on So it is known from experience that the piecing sections be kept much shorter when using polypropylene than when using polyamide or polyester. Here you can Length differences in the piecing distances of more than one meter occur.

In order despite the fixed assignment between the spinning device and the one below Spinning device arranged in the machine frame treatment devices To enable flexible piecing sections is, according to the invention, an entry group the treatment devices adjustable relative to the spinning device on the Machine frame held. Thus, minimal heights in the range Device can be achieved. For example, a minimal piecing distance can be achieved by realizing that the intake group of the machining equipment directly on an upper side of the machine frame below the spinning device is arranged. In the event that a maximum length of the spinning section the inlet group is adjusted from the upper position to a lower position towards the bottom of the machine frame. In order to can also advantageously adapt the cooling sections to the respective Make polymer.

The invention was also not suggested by the fact that from US Pat. No. 4,247,505 or DE 101 25 480 A1 is known which is used to form the point of convergence Execute used guide means adjustable in height so that a certain Thread tension state on the threads is reached. The thread guide lines between the spinning device and the following treatment devices or winding devices remain unchanged. It just becomes that Combining the filament bundle changed in position along a piecing path.

In contrast, the device according to the invention has the advantage that at changed piecing path a simultaneous change in the length of the thread guide path is achieved.

According to a preferred development of the invention, the intake group is the Treatment facilities arranged on a carrier. The carrier is detachable and / or slidably held on the machine frame so that all group members of the treatment facilities together in a simple manner can be positioned to change the piecing distance.

The carrier is preferably designed as a slide, which is aligned vertically Guide rails on the machine frame is guided. The sled can, for example, either hydraulically or mechanically using threaded spindles to be controlled. Here are all treatment facilities held on the sled provided with flexible supply and control lines.

The enrollment group of treatment facilities is preferred according to one Development of the invention at least from a preparation device and a trigger means, which are held together on the carrier. The preparation device is designed for the preparation of several threads, which are withdrawn together from the spinning device by the removal means become.

Both driven and non-driven take-off rollers are used as the pull-off means as well as fully driven trigger godet units. The usage of complete take-off godet units consisting of a driven godet and a freely rotatable overflow roller are suitable for larger ones To build deduction forces.

To be advantageous within the intake group of the processing device Obtaining thread guidance is according to a special development of the invention the preparation device and the trigger means several guide means assigned to guide the threads, which are also attached to the carrier. For example, the threads can be moved from a spinning plane to a treatment plane transfer or in the production of so-called tricolor threads Arrange the different colored threads.

A texturing device is proposed for texturing the threads has one or more texturing nozzles and at least one cooling device. Here, the filaments of the threads become gas dynamic processes a thread plug and then after cooling to a textured thread dissolved.

When using a take-off godet unit in the inlet group of the treatment device, it has proven to be particularly advantageous if the take-off godet unit is followed by a stretch godet unit. By changing the position of the inlet group of the treatment devices, a change in the stretching length between the take-off godet unit and the stretching godet unit can thus advantageously be carried out. This provides another way of adapting the process to the polymer and thread type.
The invention also relates to a method for spin-texturing synthetic threads, in which the threads are spun from a melted polymer and textured after a first treatment, the threads passing through a predetermined piecing path before the first treatment. In order to obtain an optimal process setting depending on the polymer and / or thread type to be produced, the piecing path is changed to a predetermined level depending on the polymer and thread type. Here, the initial treatment of the threads comprises at least one preparation and one pulling off the threads.

Basically, the method according to the invention has the same advantages as the device according to the invention, so that on the aforementioned on this Position is referred to.

The invention is based on some embodiments with reference to the attached figures explained in more detail below.

Fig. 1

schematisch eine Ansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung

Fig. 2

schematisch eine Ansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung

They represent:

Fig. 1

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

Fig. 2

schematically shows a view of another embodiment of the device according to the invention

In Fig. 1 is a first embodiment of the device according to the invention shown. The view schematically represents a front view of the machine The device has a spinning device 1, which is located on a machine frame 6 supported. The spinning device 1 comprises a melt feed 2, a spinning beam 3, a plurality of spinnerets 4 arranged on the underside of the spinning beam and a spinning shaft 5.

The machine frame 6 below the spinning device 1 carries several to one Treatment devices 9, 11, 12, 14.1, 15, 16, 18 and 14.2. Treatment devices 9 and 12 for initial treatment and stripping the threads from the spinning device 1 are combined to form an inlet group. For this purpose, the treatment devices 9 and 12 are together on one Carrier 10 arranged. The carrier 10 is designed as a slide, which in the vertically aligned guide rails 13 adjustable in the machine frame 6 is held. Here, the carriage 10 can be hydraulically or mechanically The position of threaded spindles can be changed. So the sled can be 10, for example, in an upper position on the upper side of the machine frame 6 or in extreme cases in a lower position on the underside of the machine frame 6 position. The distance between the treatment device 9 and the spinnerets 4 each result in the one passing through the filament bundles 7 Anspinnstrecke. The treatment device 9 is a preparation device and the treatment device 12 is formed by a take-off roller. The preparation device 9 can be used as a pen preparation with a separate one Preparation per thread or as a roller preparation with joint preparation of all threads. Between the preparation device 9 and the take-off roller 12 is a thread guide 8 per thread and for all threads together a deflection pin 11 is provided for thread guidance. The thread guide 8 and the deflection pin 11 are attached to the carriage 10. Furthermore, it is Preparation device 9 advantageously with suction and a cutting device (not shown here) coupled.

The take-off roller 12 is a first godet unit as further treatment devices 14.1, a godet duo 15, a texturing agent 16, a cooling roller 18 and a second godet unit 14.2. The first godet unit 14.1 is formed by a driven godet and a free-running overflow roller, which are both held stationary on the machine frame 6. The following Galettenduo 15 is replaced by two with different peripheral speeds powered godets formed to stretch the threads.

The texturing device 16 is provided by several texturing nozzles assigned to each thread formed, which are acted upon by a hot conveying fluid. The texturing device 16 is a cooling roller 18 downstream, which is stationary or adjustable in height is held in the machine frame 6. The cooling roller 18 preferably acts with a vacuum source, not shown here, the one through the jacket of the cooling roller 18 flowing cooling air flow forms a or to cool several thread plugs 17 guided on the circumference of the cooling roller 18.

The cooling roller is followed by a second godet unit 14.2, which also is formed from a driven godet and a free-running overflow roller.

A winding device 21 is arranged on the side next to the machine frame 6, through which the textured threads 27 parallel to each other one at a time Coil 23 are wound up. Such winding machines are general known and described for example in EP 0770030, so that at this point express reference can be made to the cited publication. The Winding machine 21 has two winding spindles 22 for receiving the bobbins 23, which alternate into an operating area and a changing area by one movable spindle carrier can be pivoted. The feeding of the threads 27 too The individual winding positions of the winding device 21 are carried out via a distributor roller 19 and the head thread guides 20, each upstream of a winding station are. The thread is in each winding point - three winding points are shown moved back and forth by means of a traversing device in order to use a subsequent one Pressure roller to be placed on the surface of the coil 23.

In the exemplary embodiment of the device shown in FIG. 1, a Polymer melt, for example by means of an extruder of the spinning device 1 fed and given to the spinning beam 3 via the melt feed 2. By the spinnerets 4 held on the underside of the spinning beam 3 Polymer melt in three filament bundles 7 emerging side by side extruded. Each of the filament bundles 7 becomes after passing through a spinning section for initial treatment and for withdrawal to an enema group of treatment facilities 9 and 12 out. The filament bundles 7 are initially in the preparation device 9 is prepared and by the thread guides 8 to threads 7 merged. Before the separated threads emerge, the threads 7 are made a spinning plane into a treatment plane offset by 90 ° through the Deflection pin 11 out. Then the threads 7 are parallel to each other guided on the circumference of the take-off roller 12 and withdrawn from the godet unit 14.1. Here, the preparation device 9, the thread guide 8, the deflection pin 11 and the take-off roller 12 are positioned on the carriage 10 in a predetermined position, in order to obtain a piecing distance required for the polymer.

On the godet duo 15, the threads 7 are stretched between the two godets. For this purpose, the godets of the godet duo 15 are operated at a differential speed driven. To support the stretching, the godets can of the godet duo 15 can be designed to be heatable. After stretching the threads 7 are drawn in parallel into the texturing device 16. Doing so each thread 7 to a thread plug 17 in an associated texturing nozzle dammed. The thread plugs 17 are from the texturing on the Pass circumference of the cooling roller 18 and cooled there. After cooling the Thread plugs 17 are each dissolved into a textured thread 27 and withdrawn from the godet unit 14.2 and to the winding device 21 guided. In the winding device 21, the threads 27 are parallel to each other wound into coils 23. For this purpose, the threads 27 are fed via a distributor roller 19 and the head thread guides 20 distributed over the winding stations.

2 shows a further exemplary embodiment of the device according to the invention shown schematically in a front view. The components with the same functions have been given identical reference numerals. The structure of the embodiment is essentially identical to the previous embodiment, so far only the differences are explained below and in the rest of the reference taken to the previous description of FIG. 1.

The spinning device 1 has a plurality of melt feeds 2, from each of the three spinnerets 4 each to spin a different filament bundle. Different colored filament bundles are preferably produced, the front are wound together to form a composite thread. Each of the Melt feeds 2 are each with a melt generator, for example connected to an extruder.

Below the spinning device 1 is the inlet group in the machine frame 6 of the treatment devices attached to the carriage 10. Here, the Inlet group of the treatment device through the preparation device 9 and the trigger godet unit 24. Between the preparation device 9 and the take-off godet unit 24, the thread guide means 8 and 11 are provided. The inlet group of the treatment devices 9 and 24 follow in the thread running direction further treatment facilities by two godet duos 15.1 and 15.2, the texturing device 16, the cooling roller 18, the godet units 14.1 and 14.2 and one arranged between the godet units 14.1 and 14.2 Swirling device 25 are formed. Compared to the previous one In this embodiment, the threads 7 directly by the one assigned to the intake group of the treatment facility Discharge godet unit 24 withdrawn from the spinning device and to the following Stretching device led. The stretching device is operated by the two godet duos 15.1 and 15.2 formed, each containing two driven godets. The threads 7 are wrapped around one another in parallel with several wraps the respective godet duos 15.1 and 15.2 led. The godets are included Differential speed driven so that the threads 7 are stretched. After stretching, texturing takes place within the texturing device 16. The texturing device points to this. 16 one or more texturing nozzles on which the threads 7 parallel to each other to several thread plugs or Texture together into a thread plug. The thread plug 17 is then cooled on the circumference of the cooling roller 18 and via the take-off godet unit 14.1 subtracted. There is one between the godet units 14.1 and 14.2 Swirling device 25 arranged on the machine frame 6. in this connection the threads are swirled to create an increased thread closure. In the interlacing process, several differently colored threads can be used to be swirled into a thread. However, it is also possible to separate the threads to swirl. The threads 27 are after swirling over the guide roller 26 to the winding machine 21 and wound up into a bobbin 23.

In the embodiment shown in Fig. 2 is the longitudinal axis of the winding machine aligned transversely to the spinning plane. The advantage of this arrangement is that the winding level is equal to the treatment level of the threads, so that no further thread twist is required. The one shown in Fig. 2 Embodiment of the device according to the invention is preferably suitable to make multicolored threads. Here, the spinning device 1 several groups of spinnerets on top, making two, four, six and eight multi-colored Threads can be made side by side in parallel. The three side by side Spun threads 7 can within the texturing device 16 or merged into a composite thread within the interlacing device 25 become.

The exemplary embodiments of the invention shown in FIGS. 1 and 2 Device are in the structure and arrangement of the treatment facilities and the winding devices as examples. For example, all necessary Components in the thread inlet area as well as godets, texturing units, Cooling drum and swirling in a clear manner in the machine frame 6 may be arranged. Due to the movability of the inlet group of the Treatment device on the machine frame 6 is a very compact Arrangement with an overall height that is based on a minimal length of the piecing path is designed. The total height can be extended to extend the piecing distance of the machine frame 6.

The number of threads which are guided and treated in parallel is also shown three threads) exemplary. So single threads or multiple threads can be without Managing, handling and winding up problems. It can be advantageous here Produce monocolor threads or multicolor threads. The device according to the invention is suitable for threads made of polypropylene with a short piecing distance or Manufacture threads from polyamide or polyester with a long piecing distance.

LIST OF REFERENCE NUMBERS

1

spinner

2

melt feed

3

spinning beam

4

spinneret

5

spinning shaft

6

machine frame

7

filament bundles

8th

thread guides

9

preparation device

10

carriage

11

deflection pin

12

off roll

13

guide rail

14

galette

15

godet duo

16

texturing

17

yarn plug

18

chill roll

19

distribution role

20

Yarn guide

21

rewinder

22

winding spindle

23

Kitchen sink

24

Abzugsgaletteneinheit

25

swirling

26

idler pulley

27

thread

Claims (10)

Device for spin-texturing synthetic threads with a spinning device (1) for melt spinning the threads made of a polymer, with a texturing device (16) for texturing the threads, with a plurality of treatment devices (9, 12, 14, 15, 18) for pre-and Post-treatment of the threads and with a winding device (21) for winding the threads, the treatment devices (9, 12, 14, 15, 18) and the texturing device (16) being held on a machine frame (6) arranged below the spinning device (1) and wherein part of the treatment devices (9, 12) is assigned as an inlet group directly to the spinning device (1) for the initial treatment and removal of the threads, characterized in that the inlet group of the treatment devices (9, 12) for changing a piecing distance relative to the spinning device (1) is held adjustable on the machine frame (6). Device according to claim 1, characterized in that the inlet group of the treatment devices (9, 12) is arranged on a carrier (10) and that the carrier (10) is detachably and / or displaceably held on the machine frame (6). Apparatus according to claim 2, characterized in that the carrier is designed as a slide (10) which is guided in vertically aligned guide rails (13) on the machine frame (6). Device according to one of claims 2 or 3, characterized in that the inlet group of treatment devices has at least one preparation device (9) and a trigger means (12), which are held together on the carrier (10). Device according to claim 4, characterized in that the trigger means is formed by a driven trigger roller (12) or by a driven trigger godet unit (24). Apparatus according to claim 4 or 5, characterized in that the preparation device (9) and the withdrawal means (17) are assigned a plurality of guide means (8, 11) for guiding the threads, which are fastened to the carrier (10). Device according to one of claims 1 to 6, characterized in that the texturing device (16) is formed by one or more texturing nozzles and at least one cooling device (18). Device according to one of claims 1 to 7, characterized in that the draw-off means (24) of the inlet group of the treatment devices is followed by a stretch godet unit (15) which is held stationary on the machine frame (6). A process for spin-texturing synthetic threads, in which the threads are spun from a melted polymer and textured after an initial treatment, the threads passing through a predetermined piecing path before the first treatment, characterized in that the piecing path is dependent on the polymer presented and / or is to be produced Thread type is changed to a predetermined level. A method according to claim 9, characterized in that the initial treatment of the threads comprises preparation and removal of the threads.

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