False twisting device for texturing synthetic yarn

Abstract

The invention relates to a false twisting device (7) for texturing a synthetic thread (30), comprising a plurality of friction discs (101-109), each of which is rotatably mounted about an axis of rotation (110, 120, 140) in a predetermined friction group (G1-G3), each group (G1-G3) being arranged at least partially overlapping the other group in a thread running direction (FD), each friction disc (101-109) of one group is successively connected with the yarn to be deformed through a preset peripheral part in the yarn running direction. Each friction disk (101-109) is individually rotatable at a predetermined surface velocity. The invention also relates to an associated method and an associated texturing device for texturing a synthetic thread (30), having a false twisting device (7).

Description

[0001] The invention relates to a false twisting device according to the preamble of claim 1 for texturing synthetic yarns, and to an associated method and an associated texturing apparatus comprising the false twisting device.

[0002] Typically, prior art discloses a false twisting device that performs friction rotation to crimp a synthetic yarn. Crimping is also referred to as texturing. To this end, the false twisting device may have a friction disc supported and driven by a spindle.

[0003] WO2015007157A1 describes an easy-to-install false twisting device with a spindle. To this end, a connecting ring is mounted on the first portion of the spindle's bearing outer ring to form a sleeve, wherein the outer diameter of the connecting ring is no larger than the outer diameter of the second portion of the bearing outer ring, so that the connecting ring does not interfere with the spindle when the spindle is installed in the base hole of the base of the false twisting device along the axial direction of the core shaft.

[0004] During texturing, the so-called "surging" is a decisive limiting factor on process speed. Surging is caused by exceeding the maximum transmittable torque at the friction disk. As a result, the friction conditions change, leading to poor texturing results and even yarn breakage. "Surging" occurs at the friction disk where the highest torque is transmitted to the yarn.

[0005] The distribution of the force input from the individual friction discs to the yarn is determined by the design. This results in local force peaks between the friction discs and the yarn. If the torque that can be transmitted in the current tribological system is exceeded, these local force peaks can lead to process instabilities known as "surging." Local force peaks are the cause of both yarn breakage and process instabilities such as twist slip or surging.

[0006] It is therefore an object of the present invention to provide a false twisting device, a method and a texturing apparatus, each of which is able to prevent or at least reduce the surge of the yarn on the friction disc during texturing.

[0007] According to the invention, this object is achieved by a false twisting device having the features according to claim 1 .

[0008] According to the invention, with regard to the method, this object is achieved by a method having the features according to claim 10 .

[0009] According to the invention, with regard to the deformation device, this object is achieved by a deformation device having the features according to claim 11 .

[0010] Advantageous developments of the invention are defined by the features and feature combinations of the dependent claims.

[0011] According to one aspect of the present invention, a false twist device for texturing synthetic yarn is provided, comprising a plurality of friction discs, each of which is rotatably mounted about a rotation axis in predetermined friction groups, wherein each group is arranged at least partially overlapping with the other groups in the yarn running direction, so that each friction disc of a group engages the yarn to be texturized one after another in the yarn running direction via a predetermined peripheral portion. Each friction disc is individually rotatable at a predetermined surface speed.

[0012] This concept envisions the adjustability and open- and / or closed-loop control of individual friction disks or groups of friction disks, particularly the surface speed of the individual friction disks. As a result, local force peaks can be reduced while maintaining the same overall twist level. Successfully distributing the torque input from the friction disk with the highest force input to the other disks, eliminating force peaks, can increase surge speeds and, therefore, process throughput rates.

[0013] According to a particular embodiment of the false twisting device, the surface speed is individually adjustable for each friction disc, thereby enabling an adjustable amount of torque to be applied to the yarn to be textured at each friction disc.

[0014] The sum of the torques gives the total twist introduced into the yarn. Due to the prior art false twist device design, in which all friction discs rotate at the same speed, local peaks of force occur on the yarn at the contact points between the friction discs and the yarn. If, as proposed in the present invention, the force peaks are compensated by adjustable surface speed, production rates can be increased and surges can be prevented.

[0015] According to a particularly preferred embodiment of the false twisting device, the surface speed can be adjusted by a predetermined rotational speed of the driving friction disk and / or by the radius of the friction disk.

[0016] In another particularly preferred embodiment, each friction disk is rotatable at a predetermined rotational speed.

[0017] In a false twist device, up to nine friction discs are used to input twist into the yarn due to the torque they apply to the yarn. According to the invention, each friction disc applies the best / maximum possible torque to the yarn, which is possible due to the adjustable rotational speed.

[0018] According to a special embodiment of the false twisting device, each friction disk is assigned a drive, by means of which the rotational speed can be adjusted.

[0019] According to a particular embodiment of the false twist device, the position of the rotation axis relative to the imaginary yarn path is adjustable, so that the overlap with the adjacent friction disc is adjustable.

[0020] The sum of the torques introduced into the yarn by the friction disks gives the total twist introduced into the yarn. The torque input into the yarn by a friction disk depends on the yarn's contact line on the friction disk, the yarn tension, and the tribological properties of the yarn and friction disk. The contact line, in turn, depends on the overall geometry of the friction disk and the yarn deflection caused by friction.

[0021] Due to the geometrically determined, locally different positioning of the yarn on the individual friction disks and the varying yarn tensions throughout the false twist device, in prior art false twist devices, the torque input varies both overall and along the line of contact with the yarn. In prior art false twist devices, in which all disks rotate at the same speed around a fixed axis, locally high forces act on the yarn at the contact points between the friction disks and the yarn.

[0022] According to the invention, this is achieved by individually adjustable surface speeds of the friction discs and / or by adjusting the position of the rotation axes of the individual friction discs relative to the yarn path in the false twist device, thereby ensuring that the torque input at each friction disc is identical.

[0023] In another particularly preferred embodiment of the false twisting device, the rotational speed is controlled based on a predetermined rotational speed profile.

[0024] Therefore, speed profiles are also provided for friction discs rotating at different speeds during false twist texturing in a false twist device.

[0025] Local force peaks can also be prevented by using a predefined speed profile with a constant total twist. If the torque or force input is evenly distributed across all friction discs so that force peaks do not occur, it is possible to increase the surge speed and reduce the surge effect, thus positively impacting yarn quality and / or production rate. For example, a rising, stepped speed profile can achieve better crimping characteristics than with uniformly running friction discs. The increased surge speed means that surge only occurs at higher production or process rates.

[0026] In another particularly preferred embodiment of the false twisting device, the rotational speed profile has a predetermined rotational speed for each friction disk.

[0027] According to the present invention, the surging problem is also solved by a false twist device with speed grading. The present invention also relates to grading the friction disk speeds of the friction disks in the production direction. In this case, the speed of a single friction disk or a group of friction disks is regulated or subjected to open-loop or closed-loop control. This allows the proportional torque input to the yarn to be adapted. The uniform torque input to all friction disks, combined with a constant or higher total torque input, allows for increased production rates while achieving the same or better texturing results and prevents surging at the respective friction disks.

[0028] According to a special embodiment of the false twist device, according to the rotational speed profile, for each friction disk in the yarn running direction, the rotational speed is increased and / or decreased by a predetermined amount.

[0029] According to another aspect of the present invention, a method for texturing a synthetic yarn by means of a false twisting device according to at least one of the above-described embodiments comprising a plurality of friction discs is provided, comprising the following steps:

[0030] -Supply of synthetic yarn,

[0031] - pulling the synthetic yarn from the supply bobbin by means of a delivery unit,

[0032] - heating the synthetic yarn by means of a heating device,

[0033] - cooling of the synthetic yarn by means of a cooling device,

[0034] - texturing the synthetic yarn by means of a false twisting device, in particular a false twisting device according to at least one of the above-mentioned embodiments, wherein the surface speed of each friction disc of the false twisting device is individually controlled,

[0035] - Winding up the textured yarn by means of a winding device.

[0036] According to another aspect of the present invention, there is provided a texturing apparatus for texturing a synthetic yarn, comprising:

[0037] - a storage location for supply bobbins with synthetic yarn,

[0038] - a first and a second conveying unit for feeding and stretching the synthetic yarn,

[0039] - a heating device for heating the synthetic yarn,

[0040] - cooling devices for cooling synthetic yarns,

[0041] a false twisting device for transforming a synthetic yarn into a textured yarn, in particular a false twisting device according to at least one of the above-described embodiments, and

[0042] - Winding device for winding textured yarn.

[0043] The present invention provides for the adjustability, closed-loop control and / or open-loop control of the speed of individual friction discs or groups of friction discs, and thus for the realization of a certain speed profile on each friction disc. As a result, local force peaks are reduced while the total twist remains the same.

[0044] This distributes the torque or force input evenly across all friction discs, ensuring that no force peaks occur.

[0045] This allows to reduce the surge effect and thus has a positive effect on the yarn quality and / or production rate. For example, by means of an increasing stepped speed profile, better crimping characteristics can be achieved than with a friction disc running in a uniform manner.

[0046] The false twist device for texturing a synthetic yarn according to the invention, as well as the associated method and the associated texturing apparatus will be explained in more detail below with the aid of several exemplary embodiments and with reference to the accompanying drawings.

[0047] in:

[0048] Figure 1 shows a schematic diagram of a texturing apparatus for texturing a synthetic yarn into a textured yarn,

[0049] Figure 2 shows a perspective view of a false twist device,

[0050] Figure 3 Shown Figure 2 Schematic top view of the false twist device,

[0051] Figure 4 Shown Figure 2 Side view of the false twist device.

[0052] Figure 5 shows a graph illustrating an exemplary embodiment of a rotational speed curve for controlling the false twist device, and

[0053] Figure 6 A graph illustrating the torque input of a false twisting device with individual speed control according to the present invention and the torque input of a false twisting device without individual speed control is shown.

[0054] exist Figures 2 to 3 In FIG, a reference coordinate system XYZ is shown, wherein the longitudinal extension of the false twisting device 7 is shown in the X direction, the depth of the false twisting device 7 is shown in the Y direction, and the vertical extension of the false twisting device 7 is shown in the Z direction.

[0055] Figure 1 A schematic diagram of a texturing apparatus for texturing a synthetic yarn 30 into a textured yarn 31 is shown.

[0056] For this purpose, the texturing device for texturing a synthetic yarn 30 has a storage location 4 for supplying a supply bobbin 2 with the synthetic yarn 30 .

[0057] For conveying and unwinding the synthetic yarn 30 , a first conveying unit 1 . 1 and a second conveying unit 1 . 2 are provided. The conveying units 1 . 1 - 1 . 2 are configured for feeding and stretching the synthetic yarn 30 .

[0058] For heat setting, the synthetic yarn 30 is fed by the second conveying unit 1 . 2 to a heating device 5 for heating the synthetic yarn 30 and a cooling device 6 for cooling the synthetic yarn 30 .

[0059] The synthetic yarn 30 is transformed into a textured yarn 31 by a false twist device 7 having a plurality of friction discs 101-109, wherein the friction discs 10 apply twist by friction to wind the synthetic yarn 30 into the textured yarn 31. The textured yarn is wound onto a bobbin by a winding device 25.

[0060] The false twist device 7 is configured to crimp and twist the synthetic yarn 30, and refers to Figure 2 Explained in detail below.

[0061] Figure 2 A perspective view of the false twisting device 7 is shown.

[0062] Reference below Figure 2 、 Figure 3 and Figure 4 The false twist device will be explained.

[0063] The false twisting device 7 for texturing the synthetic yarn 30 has a plurality of friction discs 101 - 109 , which are rotatably supported in groups on rotating shafts 110 , 120 , 140 in a multi-axis manner.

[0064] In the exemplary embodiment shown, the false twisting device 7 has a total of nine friction discs 101 to 109. Exemplary embodiments with fewer or more than nine friction discs 101 to 109 are also possible.

[0065] The friction disks are each rotatably mounted about rotation axes 110 , 120 , 140 in a predetermined friction group G1 - G3 .

[0066] The rotating shafts 110 , 120 , 140 support the respective friction discs 101 - 109 at predetermined positions and, according to an exemplary embodiment, can individually drive the individual friction discs 101 - 109 such that each friction disc can rotate at a predetermined surface speed.

[0067] Here, the surface speed refers to the surface speed of the individual friction disks 101-109 adjacent to or adjacent to the theoretical yarn path 40 (see Figure 4 )'s outer peripheral surface.

[0068] The individual control of the surface speed of the associated friction disks 101 - 109 can be performed via the rotational speed DZ or via the radius r1 of the friction disks 101 - 109 .

[0069] In another exemplary embodiment, the surface speed can be adjusted via the diameter or radius r1 of the respective friction disk. In other words, for a predetermined number of friction disks 101-109, it is possible to vary the surface speed via the radius r1 of a single friction disk 101-109, while maintaining the same rotational speed DZ. In other words, the predetermined number of friction disks 101-109, or each friction disk 101-109, may have a different predetermined radius r1 depending on their position and the expected input torque.

[0070] Figure 2 Also shown is the force input F at the friction disks 101 - 103 , which generates a torque M by means of the rotational speed DZ and the lever arm of the associated friction disk defined by the respective radius r1 of the friction disk.

[0071] Figure 3 Shown Figure 2 Schematic top view of the middle false twist device 7. To facilitate understanding, the distances between the friction discs 101-109 and the rotation axes 110, 120, 140 are shown exaggerated.

[0072] It can be seen that there is an overlap between the individual friction disks 101 - 109 . This results in a yarn path 40 that extends along the contour of the respective friction disk 107 - 109 . Figure 4 The theoretical yarn path 40 shown in FIG. 1 indicates the theoretical yarn path.

[0073] In practice, due to the rotational movement and the position of the edge of the corresponding friction disk 101-109, the yarn 30 partially follows the edge contour. The exact yarn path depends both on the geometry of the preceding or succeeding friction disk 101-109 and on the yarn tension at the friction disk 101-109 and the force transmission to the yarn 30.

[0074] The friction discs 107-109 positioned on the same rotating shaft 110, 120, 140 are assigned to the first group G1, the second group G2 and the third group G3, wherein each group G1-G3 is arranged at least partially overlapping with another group in the yarn running direction FD, so that each friction disc 101-109 of one of the G1-G3 groups is successively engaged with the yarn 30 to be deformed via a predetermined peripheral portion in the yarn running direction FD.

[0075] The first group G1 having the rotating shaft 110 has friction discs 101 , 104 and 107 , the second group G2 having the rotating shaft 120 has friction discs 102 , 105 and 108 , and the third group G3 having the rotating shaft 140 has friction discs 103 , 106 and 109 .

[0076] In the case of each friction disc 101 - 109 , the surface speed can be adjusted so that an adjustable amount of torque M can be applied to the yarn 30 to be textured at each friction disc 101 - 109 .

[0077] This can be adjusted on the one hand by the rotational speed of the friction disks 101 - 109 and on the other hand by the surface speed of the friction disks 101 - 109 in the deformation zones TG1 , TG2 , TG3 .

[0078] In the exemplary embodiment shown, the friction disks 101-109 each have the same radius r1. In this case, the torque M to be transmitted to the yarn 30 can be adjusted via the rotational speed DZ.

[0079] In order to ensure that an equal amount of predetermined torque M is applied at each friction disk 101 - 109 at the associated position 101 - 109 , this is performed according to the invention by individually regulating the rotational speed DZ.

[0080] exist Figure 6 , the torque input M is shown by taking the friction disks 101 - 106 as an example. Here, the difference between the torque input M of the friction disks 101 to 106 can be clearly seen.

[0081] The shaded bars represented by ODS represent the torque input without individual speed control, where each friction disk 101-106 has the same surface speed. The unshaded bars represented by MDS represent the torque input with individual speed control, where each friction disk 101-109 has a different surface speed, resulting in a constant torque input M to the synthetic yarn 30.

[0082] from Figure 6 It can also be seen in FIG. 1 that, without individual speed control, the torque input to almost each friction plate 101 - 106 is different, while with individual speed control, the torque input M represented by MDS has a constant value at each friction plate 101 - 106 .

[0083] In general, it can be said that at each friction disc 101 - 109 , in the associated deformation zone, a torque is introduced into the yarn 30 at the point of contact between the friction disc and the yarn.

[0084] The reason for different torque inputs at the respective friction disks is so-called "surging." Surging means exceeding the maximum transmittable torque at the friction disks, potentially causing the yarn to break away or slip on the disks. If all friction disks 101-109 are operated at the same surface speed without individual speed control, locally high forces act on the yarn at the contact points between the friction disks and the yarn. This results in altered friction conditions, leading to poor deformation results and even yarn breakage. "Surging" occurs at the friction disk that transmits the highest torque to the yarn.

[0085] In the false twisting device 7 according to the invention, there are individually controlled surface speeds to ensure that there is a constant torque input M at each friction disc, such as Figure 6 1 and 2 for friction disks 101-106 with individually controlled torque input. The individually controlled surface speeds can be achieved by individually controlled rotational speeds and / or by predefined friction disks with adapted radius r1.

[0086] Figure 5 The diagram shows an exemplary embodiment of a rotational speed profile for different rotational speeds DZ.

[0087] The rotational speed of the false twisting device 7 is controlled based on a predetermined rotational speed profile. The rotational speed profile has a predetermined rotational speed DZ for each friction disk 101-109.

[0088] according to Figure 5 , the rotational speed DZ of each friction disk 101-109 increases by a predetermined amount in the yarn running direction FD. The predetermined amount can be a constant percentage by which the rotational speed DZ of the subsequent friction disk increases.

[0089] according to Figure 5 In the exemplary embodiment, the first friction disk 101 is assigned a predetermined first speed DZ1. The second speed DZ2 of the subsequent second friction disk 102 is greater than the first speed DZ1 by a predetermined amount. This applies to the remaining friction disks 103 to 109, whose speeds DZ3 to DZ9 are obtained by adding the predetermined amount to the speed DZ of the preceding friction disk. As a result, the ninth friction disk 109 has the highest speed DZ9, while the first friction disk 101 has the lowest speed DZ1. This results in a stepped speed curve, in which the speeds DZ1 to DZ9 increase stepwise by a constant predetermined amount at each friction disk 101 to 109.

[0090] In other exemplary embodiments of the rotational speed profile, the predetermined amount can be variable and / or constant and / or increase or decrease in certain sections. The rotational speed or surface speed of the friction disks 101-109 is predetermined in each case in such a way that the same torque input to the yarn 30 occurs at each friction disk 101-109.

[0091] The speed profile can also be adjusted so that a predetermined torque is transmitted to the yarn via the friction disk.

[0092] Furthermore, in one exemplary embodiment, the position of the corresponding friction disks 101 - 109 in the false twist device 7 may be moved toward or away from the theoretical yarn path 40 in order to change the surface speed.

[0093] This is possible for each friction disc 101-109, as Figure 4 This is indicated by the double arrows depicting the respective individual rotation axes 110.1, 110.2 and 110.3 of the total rotation axis 110 of the associated friction discs 101, 104, 107, the respective individual rotation axes 120.1, 120.2 and 120.3 of the total rotation axis 120 of the associated friction discs 102, 105, 108, and the respective individual rotation axes 140.1, 140.2 and 140.3 of the total rotation axis 140 of the associated friction discs 103, 106, 109.

[0094] According to this exemplary embodiment of the false twist device 7, the position of the rotation axes 110.1-110.3; 120.1-120.3; 140.1-140.3 relative to the imaginary yarn path 40 is adjustable, and thus the overlap with the adjacent friction discs 101-109 is adjustable.

[0095] For this purpose, the friction disks 101 - 109 can have individual position-variable drives (not shown).

[0096] By combining consideration Figure 2 and Figure 4 As can also be seen, the friction discs 101-109 are divided into friction groups G1 to G3. In the X plane, transverse to the deformation direction TD, the friction discs 101, 102, 103 define a first deformation zone TG1, the friction discs 104, 105, 106 define a second deformation zone TG2, and the friction discs 107, 108, 109 define a third deformation zone TG3, in which the synthetic yarn 30 is deformed into the textured yarn 31.

[0097] According to the method for texturing a synthetic yarn 30 of the invention, one of the exemplary embodiments of the false twisting device 7 presented above with a plurality of friction discs 101 - 109 is provided.

[0098] According to the method, in a first step a synthetic yarn 30 is provided. In a further step, the synthetic yarn 30 is drawn off by the delivery units 1.1-1.2 from a supply bobbin 2, which is stored in a creel, for example.

[0099] In a further step, the synthetic yarn is heated by means of a heating device 5. Subsequently, in a step, the synthetic yarn is cooled by means of a cooling device 6.

[0100] The cooling step is followed by texturing of the synthetic yarn 30 by means of a false twisting device 7, in particular a false twisting device 7 according to the invention according to the exemplary embodiment described. The false twisting device 7 is designed so that the surface speed of each friction disc 101-109 of the false twisting device 7 can be controlled individually.

[0101] After texturing, the textured yarn 31 is wound by a winding device 25 .

[0102] The exemplary embodiments presented above can also be combined with one another. Thus, for example, the false twist device 7 can have friction discs 101-109 that can be operated at individually controllable rotational speeds DZ to achieve an optimal torque input to the yarn 30, and friction discs 101-109 that are each designed to have the same rotational speed DZ but with different radii r1 to achieve an equal torque input M to the yarn 30.

[0103] Reference Signs List

[0104] 1.1-1.2 First conveying unit, second conveying unit

[0105] 2 Supply bobbins

[0106] 30 synthetic yarn

[0107] 4 Storage Location

[0108] 5 Heating device

[0109] 6 Cooling device

[0110] 7 False twist device

[0111] 25 Winding device

[0112] 31 Textured Yarn

[0113] 40 Yarn Path

[0114] 101-109 First friction disc to ninth friction disc

[0115] 110 First rotation axis

[0116] 120 Second rotation axis

[0117] 140 Third rotation axis

[0118] DZ speed

[0119] TD deformation direction

[0120] FD Yarn running direction

[0121] F force direction

[0122] G1 first friction disc group

[0123] G2 Second friction disc group

[0124] G3 third friction disc group

[0125] TG1 first deformation zone

[0126] TG2 second deformation zone

[0127] TG3 third deformation zone

[0128] ODS does not have speed control

[0129] MDS with speed control

[0130] r1 radius

Claims

1. A false twisting device (7) for texturing a synthetic yarn (30), comprising a plurality of friction discs (101-109), each of which is rotatably mounted in a predetermined friction group (G1-G3) around a rotation axis (110, 120, 140), wherein: Each group (G1-G3) is arranged to at least partially overlap with the other groups in the yarn running direction (FD), so that each friction disk (101-109) of a group engages with the yarn to be deformed successively in the yarn running direction by means of a predetermined peripheral portion, characterized in that each friction disk (101-109) can be rotated individually at a predetermined surface speed.

2. The false twisting device (7) according to claim 1, characterized in that The surface speed (DZ) is individually adjustable for each friction disc (101-109), so that an adjustable amount of torque (M) can be applied to the yarn (30) to be textured at each friction disc (101-109).

3. The false twisting device (7) according to at least one of claims 1 or 2, characterized in that The surface speed can be adjusted by a predetermined rotational speed (DZ) at which the friction disk is driven and / or by a radius (r1) of the friction disk.

4. The false twisting device (7) according to at least one of the preceding claims, characterized in that Each friction disc (101-109) is rotatable at a predetermined rotational speed (DZ).

5. The false twisting device (7) according to at least one of the preceding claims, characterized in that Each friction disk (101-109) is assigned a drive, by means of which the rotational speed (DZ) can be adjusted.

6. The false twisting device (7) according to at least one of the preceding claims, characterized in that The position of the rotation axis (110.1-110.3; 120.1-120.3; 140.1-140.3) relative to the imaginary yarn path (40) is adjustable so that the overlap with the adjacent friction discs (101-109) is adjustable.

7. The false twisting device (7) according to at least one of the preceding claims, characterized in that The rotational speed (DZ) is controlled based on a predetermined rotational speed profile.

8. The false twisting device (7) according to at least one of the preceding claims, characterized in that The rotational speed curve has a predetermined rotational speed for each friction disk (101-109).

9. The false twisting device (7) according to at least one of the preceding claims, characterized in that According to the rotational speed profile, the rotational speed (DZ) is increased and / or decreased by a predetermined amount for each friction disk in the yarn running direction (FD).

10. A method for texturing a synthetic yarn (30) by means of a false twist device (7) according to at least one of the preceding claims, said false twist device (7) comprising a plurality of friction discs (101-109), said method comprising the following steps: - supply of synthetic yarn (30), - pulling the synthetic yarn from the supply bobbin (2) via a delivery unit (1.1-1.2), - heating said synthetic yarn by means of a heating device, - cooling the synthetic yarn by means of a cooling device (6), - the synthetic yarn (30) is deformed by a false twisting device (7), in particular a false twisting device according to at least one of the preceding claims 1 to 9, wherein The surface speed of each friction disc of the false twist device is controlled individually, - Winding up the textured yarn (31) by means of a winding device (25).

11. A texturing device for texturing a synthetic yarn (30), the texturing device comprising: - a storage location (4) for supplying a supply bobbin (2) with synthetic yarn (30), - a first conveying unit (1.1) and a second conveying unit (1.2) for feeding and stretching the synthetic yarn (30), - a heating device (5) for heating the synthetic yarn (30), - a cooling device (6) for cooling the synthetic yarn (30), - a false twisting device (7) for texturing the synthetic yarn (30) to form a textured yarn (31), in particular a false twisting device (7) according to at least one of the preceding claims 1 to 9, and - A winding device (25) for winding the textured yarn (31).

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