EP1409777B1 - False twist texturing machine - Google Patents

Description

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

It is known that such false twist texturing machines are used to crimp melt-spun multifilament yarns and thus to simulate the yarns in their structure and appearance as far as possible the natural fibers. For this purpose, the Fälschdralltexturiermaschine a plurality of processing points, wherein in each processing point, the thread is treated by several job aggregates for finishing. In essence, the yarn is stretched and crimped in a false twist zone and wound up into a coil after crimping. The job aggregates, such as delivery mechanisms, heating device, cooling device and false twist unit, are for this purpose mounted in a machine frame, so that sets a predetermined yarn path. Such a false twist texturing machine is known, for example, from EP 0 641 877. Such false twist texturing machines are constructed in such a way that a yarn with a defined yarn path and a predetermined yarn treatment is optimally crimped in each processing station.

New development trends in yarn finishing by false twist texturing, as known for example from EP 1103641 A1 and EP 1101848 A1, show an increased interest in so-called effect yarns that can be produced by a false twist texturing process. This requires additional treatment steps in the yarn path, which can not be realized without problems with the known false twist texturing.

Accordingly, it is an object of the invention to develop the generic Falschdralltexturiermaschine such that a flexible use for the production of crimped standard yarns or for the production of crimped effect yarns is possible.

The object of the invention is achieved by a false twist texturing machine having the features of claim 1.

Advantageous developments of the invention are defined in the subclaims.

The invention is based on the finding that in the production of crimped standard yarns and crimped effect yarns the different yarn treatments can be determined essentially in the inlet region of the process. For this purpose, the false twist texturing machine according to the invention has an inlet module for receiving the deduction delivery unit. At the inlet module a plurality of receiving devices for additional process units for guiding and treating a yarn or a plurality of threads are provided. The run-in module thus ensures a flexible arrangement of additional processing units, which are required compared to a standard process to produce special effect yarns. The invention has the particular advantage that for each producible yarn type an associated and already predetermined yarn path can be selected by appropriate arrangement of process units in the inlet module.

According to the advantageous development of the invention according to claim 2, the additional process units are interchangeably connected by the receiving means with the inlet module. This makes it possible to carry out a rapid process change, for example from the production of a standard yarn to produce a fancy yarn.

The advantageous development of the invention according to claim 3 is particularly suitable to connect the process units fixed on the receiving devices with the inlet module. Depending on the manufacturing process, only the processing units required for the respective process are activated.

As additional process units, this may optionally be provided for each processing point further delivery mechanisms, a draw pin, a Tangeleinrichtung and / or a coil template. For example, a second thread can be fed to the process at the infeed module by the bobbin original in order to produce a composite thread in the processing station. By a draw pin or a Tangeleinrichtung a deducted from the deduction thread could be additionally treated before the false twist texturing.

In order to enable the operability of the processing units and the job units within the false twist texturing machine in a simple manner, according to an advantageous development of the invention, an operating gear is formed between the infeed module and a process module. The process module carries at least a portion of the job aggregates such as false twist unit and delivery plants. The process units and the job aggregates can be operated from the operating gear preferably by an operator.

Due to the development of the invention according to claim 6 and claim 7 ensures that sets in the Falschdralltexturiermaschine a non-crossing threadline. Due to the little deflected yarn path, the thread can be guided in a very stable yarn path, regardless of the type of yarn. The arrangement of the heating device of the cooling device above the operating gear also has the advantage that a sufficient length for heat treatment and cooling of the false twisting thread can be realized. Due to the modules assembled into a frame part, a compact construction of the false twist texturing machine is also achieved.

For the production of so-called set yarns or for the post-heat treatment of the thread, according to an advantageous development of the invention, a second heating device is arranged on the underside of the frame part, which carries the process module and the take-up module. The heating device is preferably in a horizontally inclined position arranged to produce a uniform heating of the thread by contact.

To increase the flexibility is further proposed to form the delivery works by each a multiple looped by the thread godet with an associated overflow roller. In this case, the godet is driven by a single drive independently of neighboring delivery plants. The galette is also particularly advantageous for changing the thread circulation, so that, for example, no further thread guide elements are required in the entrance area and in the exit area of the second heating device.

The advantageous development of the invention according to claim 10 is particularly suitable for producing composite threads of, for example, a crimped thread and an elastic thread, which are brought together immediately after the crimping by a Tangeleinrichtung. For this purpose, a Tangeleinrichtung is arranged on the process module in the yarn path behind the false twist unit.

The invention will be described in more detail below with reference to an embodiment with reference to the accompanying drawings.

Fig. 1

schematisch eine Ansicht eines Ausführungsbeispiels der erfindungsgemäßen Falschdralltexturiermaschine;

Fig. 2 und 3

schematisch einige Ausführungsbeispiele eines Einlaufmoduls der Falschdralltexturiermaschine nach Fig. 1.

Fig. 4

schematisch ein weiteres Ausführungsbeispiel der erfindungsgemäßen Falschdralltexturiermaschine

They show:

Fig. 1

schematically a view of an embodiment of the false twist texturing machine according to the invention;

FIGS. 2 and 3

schematically some embodiments of an inlet module of the false twist texturing machine of FIG. 1.

Fig. 4

schematically another embodiment of the invention Falschdralltexturiermaschine

In Fig. 1, a first embodiment of the false twist texturing machine according to the invention is shown schematically. The false twist texturing machine consists of a feed module 3, a process module 2 and a take-up module 1, which are arranged in a machine frame with the frame parts 4.1, 4.2 and 4.3. The inlet module 3 is supported by the frame part 4.1 and the process module 2 and the take-up module 1 by the frame part 4.3. The frame part 4.1 and the frame part 4.3 are connected by a frame part 4.2, which is arranged above the inlet module 3 and the process module 2. Between the process module 2 and the inlet module 3, an operating passage 5 is formed below the frame part 4.2.

In the frame part 4.2, the process module 2 is arranged on the side facing the operating passage 5, and the take-up module 1 is arranged on the opposite side. Along the take-up module 1, a Doffgang 6 is provided. Doffgang 6 is associated with a second winding module 1 of a second false twist texturing machine, which is arranged in mirror image to the first false twist texturing machine. Thus, the coils of two machines can be taken over by a clearing device and transported away by the Doffgang.

The false twist texturing machine has in the longitudinal direction - in FIG. 1, the plane of the drawing is equal to the transverse plane - a plurality of processing points for one thread per processing point. The winders 18 occupy a width of three processing points. Therefore, three take-up devices 18, which will be discussed later, are arranged in a column one above the other in the take-up module 1.

Each processing point has a deduction delivery unit 10 which is attached to the inlet module 3. The design of the inlet module 3 will be described elsewhere.

The deduction delivery plants 10 of adjacent processing points are each assigned a gate 7, in which a plurality of feed bobbins 8 are provided for the withdrawal of threads 36. Each deduction delivery unit 10 is assigned to one of the supply spools 8. The thread 36 is withdrawn via several Umlenkfadenführer 9 through the deduction delivery unit 10.

Based on the yarn path of the thread 36, the other job aggregates of a processing station will be described below. In the thread running direction behind the deduction delivery unit 10 is an elongated heater 11, through which the thread 36 runs, wherein the thread is heated to a certain temperature. The heating device 11 could be designed as a high-temperature heater, in which the Heizoberflächentemperatur is above 300 ° C.

In the thread running direction behind the heater 11, a cooling device 12 is provided. The heating device 11 and the cooling device 12 are arranged one behind the other in a plane and are held by the frame part 4.2 above the operating passage 5. In the entry area of the heater 11, a guide roller 9.3 is arranged so that the thread 36 crosses the operating gear 5 in a V-shaped yarn path. For this purpose, however, the heating device 11 and the cooling device 12 could also be arranged in two roof-shaped mutually lying planes.

On the side opposite the inlet module 3 side of the operating passage 5, the process module 2 is arranged on the frame part 4.3. The process module 2 carries in the thread running direction with each other a false twist unit 13, a draft delivery unit 14 and a set-delivery 15. In this case, the thread 36 is guided from the output of the cooling device 12, which is preferably formed by a cooling rail, to the false twist unit 13. The false twist unit 13, which may be formed for example by a plurality of overlapping friction discs, is driven by the false twist drive 26. As a false twist drive 26 is preferably uses an electric motor which is also attached to the process module 2.

By the draw delivery 14, the thread 36 is withdrawn from the false twist zone, which forms between the false twist unit 13 and the deduction delivery unit 10. The drawfeeder 14 and the deduction feeder 10 are driven to draw the yarn 36 in the false twist zone at a differential speed.

Below the stretch delivery unit 14, the set delivery unit 15 is arranged, which leads the thread 36 directly into a second heating device 16. For this purpose, the second heating device 16 is arranged on the underside of the frame part 4.3 and thus below the process module 2 and the take-up module 1. The integration of the process module 2, the second heating device 16 and the winding module 1 in the frame part 4.3, a very short yarn path is realized, which is formed substantially U-shaped. On the underside of the take-up module 1, a delivery mechanism 17 is arranged for this purpose, which immediately deducts the thread 36 from the second heating device 16 and, after deflection of the thread 36, leads to the take-up device 18. The set delivery unit 15 and the delivery mechanism 17 are driven at a differential speed such that a shrinkage treatment of the thread 36 within the second heating device 16 is possible. The second heating device 16 is in this case formed by a diphyl-heated contact heater. For this purpose, the second heating device 16 is arranged at an angle α relative to a horizontal inclined The angle α is in the range between 5 to 45 °. This ensures that the thread 36 within the heating channel of the second heater 16 receives a uniform contact caused by heating.

In the event that no heat treatment of the thread in the set zone is desired, a shutdown of the second heater 16 or the second heater 16 is replaced by a guide tube.

The winding device 18 is schematically characterized in this embodiment by a traversing 20, a drive roller 19 and a coil 21. The winding device 18 also includes a sleeve magazine 22 to perform an automatic bobbin change. The auxiliary equipment required for replacing the full bobbins are not shown here.

The delivery mechanisms 10, 14, 15 and 17 are identical in their construction, so that the example of the deduction delivery mechanism 10 is explained below. Each delivery mechanism is formed by a godet 23 and an overroller 24 associated with the godet. The godet 23 is driven by a godet drive 25. The godet drive 25 is preferably formed by an electric motor. The overflow roller 24 is freely rotatably mounted, wherein the thread 36 is guided with a plurality of wraps on the godet 23 and the overflow roller 24.

The embodiment of the false twist texturing machine shown in FIG. 1 does not contain any additional process units at the inlet module 3. In each processing point thus the job aggregates are provided to stretch a given thread in a basic process and to texture. For this purpose, the thread 36 is withdrawn by the deduction delivery unit 10 of the supply spool 8 and guided in the false twist zone Within the false twist zone, which is formed essentially between the false twist unit 13 and the guide roller 9.3, the heater 11 and the cooling device 12 are arranged in a plane one behind the other , In this case, the false twist generated by the false twist unit 13 in the thread 36 is returned to the heater 11, resulting in a permanent crimping in the multifilament yarn, which is then fixed in the cooling device 12. The thread 36 is withdrawn from the false twist zone by the stretch delivery unit 14 and drawn. This is the extended delivery plant 14 driven at a higher speed than the deduction delivery unit 10. After the crimping of the thread 36 is still carried out a post-heat treatment, the thread through the set delivery mechanism 15 and the second heating downstream delivery 17 is promoted. Subsequently, the thread 36 is wound into a coil 21.

Thus, the basic method for crimping a submitted smooth thread is possible.

In order to produce a fancy yarn, the inlet module 3 can optionally be equipped with additional process units, as shown schematically in FIG. 2, for example. Here, Fig. 2.1 shows the inlet module without additional process units and Fig. 2.2 the inlet module 3 with additional processing units.

The inlet module 3, which may be formed, for example, by a support plate 27, carries the trigger delivery unit 10. For this purpose, the overflow roller 24.1 is rotatably mounted on the support plate 27. At a distance to the overflow roller 24, the godet 23.1 is arranged with a arranged on the opposite side of the support plate 27 godet drive 25. The godet 24.1 is driven by the godet drive 25, which is designed, for example, as an electric motor, the yarn being guided in multiple wrapping over the godet 23.1 and the overflow roller 24.1. On the support plate 27 a plurality of receiving devices 28.1, 28.2 and 28.3 are formed in Fig. 2.1 are the receiving devices 28.1 to 28.3 without process units, which corresponds to the state of the inlet module 3 for the production of the standard yarn, and in Fig. 2.2 with additional process units for producing an effect yarn shown. As an additional process units, a delivery mechanism 29 and a draw pin 32 are held by the receiving devices 28. 1 to 28. 3 in the carrier plate 27 of the intake module 3. The delivery mechanism 29 is formed by the overflow roller 30 and the godet 31. The godet 31 is connected to a godet drive, not shown here. Of the Draw pin 32 is preferably heated, but could also be used without heating.

In the arrangement of the inlet module 3 shown in FIG. 2.2, the thread run of the thread 36 is shown. In this case, the yarn path according to the false twist texturing machine according to FIG. 1 could be composed as follows. By the deduction delivery 10, the thread 36 is subtracted from the supply spool 8. From the deduction delivery unit 10, the thread 36 is guided into a first draw zone, which extends between the godet 23.1 of the deduction delivery unit 10 and the godet 30 of the delivery mechanism 29. Within the draw zone, a heated draw pin 32 is arranged. The draw pin 32 could here be heated to a surface temperature in the range of 80 ° C to 160 ° C. The draw pin 32 is looped around by the thread and withdrawn from the delivery mechanism 29. In the event that the thread should only perform a partial looping on the draw pin 32, the draw pin 32 may be associated with a thread guide, which would be adjustable to set a certain angle of wrap on the draw pin 32 in position.

From the delivery mechanism 29, the thus pre-stretched yarn is guided into the false twist texturing zone. The further yarn course corresponds to the yarn path already described with reference to FIG. 1 in the false twist texturing machine. By appropriate thread tension adjustment in the draw zone advantageous effects can be generated in the thread, which turn out after the crimping as thin / thick effects.

FIG. 3 shows further exemplary embodiments of an intake module 3, as could be used, for example, in the false twist texturing machine shown in FIG.

In Fig. 3.1, the inlet module 3 per processing point a deduction 10, another delivery 29 and a coil template 33 with a head thread guide 34 on. The additional process units are also held by a respective receiving device on the support plate 27. The receiving devices 28.4 and 28.5 are introduced for further additional processing units in the carrier plate 27.

The exemplary embodiment of the inlet module 3 shown in FIG. 3.1 is particularly suitable for producing a composite thread, for example from a crimped thread and an elastic thread. For this purpose, the thread 36 is withdrawn by the withdrawal unit 10 and fed to the false twist zone. A second thread 37 is withdrawn by the delivery mechanism 29 from the supply spool 35 via the head thread guide 34. The feed bobbin 35 is arranged in the bobbin original 33 for this purpose. The thread 37 could then be guided outside the false twist zone up to a Tangeleinrichtung, which could be preferably mounted behind the stretch delivery unit 14 of the false twist texturing shown in Fig. 1. After the yarn 37 is connected to the crimped yarn 36, the composite yarn thus formed is wound into a spool. Previously, the composite could be passed through the second heater for heat treatment.

In Fig. 3.2, a further embodiment of an inlet module 3 is shown, in which the inlet module 3, the deduction delivery 10 and another delivery 29 has. Both delivery mechanisms are each formed by an overflow roller and a godet. Between the delivery mechanisms 10 and 29 a Tangeleinrichtung 38 is held by a receiving device on the support plate 27 of the inlet module 3. The Tangeleinrichtung 38 is connected to a compressed air source (not shown here), so that the guided through a thread channel thread 36 is swirled by a compressed air stream. This pre-treatment of the thread 36 preceding the false-twist crimp leads to an improvement in the bulkiness of the thread in the crimped state.

The embodiments of the Einlaüfmodule shown in Figures 2 and 3 can be combined in any form. There is the possibility that either all processing units are arranged in the receptacles provided, while only a portion of the additional process units are required at the inlet module 3. However, it is also possible that the intake module 3 contains only the process units, respectively, which are required for the production of the respective yarn. There is also the possibility that the inlet module 3 is interchangeable connected to the machine frame.

The false twist texturing machine according to the invention can also be further developed in such a way that the process module 2 opposite the inlet module 3 likewise carries receiving devices for additional units. It could be arranged per job a process module 2, for example, an additional false twist unit to merge two crimped threads into a composite thread.

In Fig. 4, a further embodiment of a false twist texturing machine according to the invention is shown schematically The structure of the machine frame and the arrangement of the job aggregates is substantially identical to the previous embodiment of FIG. 1. In that regard, reference is made to the preceding description of FIG. 1 and to This section only shows the differences.

In the false twist texturing machine shown in FIG. 4, a run-in module 3 is used, which is designed in accordance with the exemplary embodiment according to FIG. 3.1. In addition to the deduction delivery unit 10, the inlet module 3 carries the original coil 33 with a supply spool 35 on which a thread 37 is wound. The thread 37 is withdrawn from the supply spool 35 by a delivery mechanism 29 via the head thread guide 34. The delivery mechanism 29 has a godet 31 and an overflow roller, not shown here. The godet 31 is driven by the godet drive 25.

Through the withdrawal unit 10 at the inlet module 3, a further thread 36 is withdrawn at one of the feed bobbins 8 and guided into a texturing zone. After false twist texturing of the thread 36 by the false twist unit 13, the two threads 36 and 37 are brought together by a Falschdragaggregat 13 downstream Tangeleinrichtung. For this purpose, the tangling device 38 is arranged on the process module 2 between the draft delivery unit 14 and an additional delivery mechanism 39 arranged upstream of the set delivery mechanism 15. By the additional delivery mechanism 39 thus required for the connection of the two threads 36 and 37 thread tensions can be advantageously adjusted.

The composite thread formed from the threads 36 and 37 is then guided via the set delivery mechanism 15 through the secondary heater 16 and by means of the delivery mechanism 17 to the take-up device 18.

However, the embodiment of the false twist texturing machine according to the invention shown in FIG. 4 can also be used without the provision of a second thread for false twist texturing of a thread. For this purpose, the delivery mechanism 29 and the coil template 33 could be omitted on the inlet module 3. In contrast, replacement of the tangle device 38 and the further delivery mechanism 39 on the process module 2 is not required. The thread 36 is swirled before the second heat treatment.

The exemplary embodiments of the false twist texturing machine shown in FIGS. 1 and 2 are exemplary in design and in the construction of the set aggregates. In principle, it is possible to drive the delivery plants individually or in groups. It can also be used instead of the godets conventional Klemmlieferwerke. Essential here is the arrangement of the additional process units in the inlet module in the inlet region of the false twist texturing machine. The flexible design and design of the inlet module with additional processing units increases the use Such Falschdralltexturiermaschinen to a considerable extent. Elaborate renovations are not required.

LIST OF REFERENCE NUMBERS

1

Rewinding

2

process module

3

feed module

4.1,4.2,4.3

frame part

5

service aisle

6

doffing aisle

7

gate

8th

supply bobbin

9.1,9.2,9.3

idler pulley

10

Withdrawal roll system

11

primary heater

12

cooling device

13

False twist unit

14

Expanded delivery works

15

Setlieferwerk

16

secondary heater

17

delivery mechanism

18

takeup

19

drive roll

20

traversing

21

Kitchen sink

22

tube magazine

23.1, 23.2, 23.3

Galette

24.1, 24.2, 24.3

Guide roll

25

godet

26

False twist drive

27

support plate

28.1, 28.2, 28.3, 28.4, 28.5

recording device

29

delivery mechanism

30

Guide roll

31

Galette

32

draw pin

33

package feed

34

Yarn guide

35

supply bobbin

36

thread

37

thread

38

entanglement

39

delivery mechanism

Claims (10)

1. False twist texturing machine for false twist texturing a plurality of synthetic yarns with a plurality of processing stations, which each comprise a plurality of processing units and a takeup device (18), the processing units being formed at least by a plurality of feed roll systems (10, 14, 15, 17), a heater (11), a cooling device (12), and a false twist unit (13), one of the feed roll systems being a withdrawal roll system (10) for withdrawing a yarn (36) from a feed yarn package (8), characterized in that a feed module (3) is provided for accommodating the withdrawal roll system (10), and that the feed module (3) comprises a plurality of receiving devices (28.1, 28.2) for additional processing units (29, 32, 33) for advancing and treating a yarn or a plurality of yarns.
2. False twist texturing machine of claim 1, characterized in that the additional processing units (29, 32, 33) are exchangeably connected to the feed module (3) by means of the receiving devices (28.1, 28.2).
3. False twist texturing machine of claim 1 or 2, characterized in that the drivable processing units (29) are each connected to a controllable individual drive (25).
4. False twist texturing machine of one of claims 1-3, characterized in that the additional processing units are optionally formed by further feed roll systems (29), a draw pin (32), an entanglement device (38), and/or a package feed device (33).
5. False twist texturing machine of one of claims 1-4, characterized in that the feed module (3) forms with an opposite processing module (2) a servicing aisle (5), with the processing module (2) mounting at least one portion of the processing units (13, 14), so that the additional processing units (29, 32, 33) on the feed module (3) and the processing units (13, 14) on the processing module (2) can be operated from the servicing aisle (5).
6. False twist texturing machine of claim 5, characterized in that the yarn passage from the feed module (3) to the processing module (2) is formed by the heater (11) and cooling device (12), which are arranged above the servicing aisle (5) such that the yarn (36) advances from the feed module (3) to the processing module (2) along a substantially V-shaped path.
7. False twist texturing machine of one of the foregoing claims, characterized in that a takeup module (1) is provided for accommodating takeup devices (18), and that the processing module (2) and the takeup module (1) are joined to a common frame section (4.3) such that the yarn advances from the false twist unit (13) to the takeup device (18) along a substantially U-shaped path.
8. False twist texturing machine of claim 7, characterized in that a second heater (16) is arranged on the underside of the frame section (4.3) in a position, which is inclined relative to the horizontal by an angle, and forms the yarn passage between the processing module (2) and the takeup module (1).
9. False twist texturing machine of one of claims 1-8, characterized in that the feed roll systems (10, 14, 15, 17) are each formed by a godet (23) that is looped by the yarn several times, with an associated guide roll (2), the godet (23) being driven independently of adjacent feed roll systems.
10. False twist texturing machine of one of claims 1-9, characterized in that an entanglement device (38) in arranged on the processing module (2) in the path of the yarn downstream of the false twist unit (13), the entanglement device combining the textured yarn (36) with a second yarn (37) that is provided via the package feed device (33) on the feed module (3).

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