Yarn supply device, station for a flyer-type multiple strand twister and supply method

Abstract

The invention relates to a yarn supply device, a station of a flyer-type multiple twisting machine and a supply method. The yarn supply device serves to supply a cheese from a feed cheese of a cheese stand of a flyer-type multiple twisting machine or a delivery column arranged above the flyer-type multiple twisting machine to a twisting device with a twisting spindle and / or to supply a starting yarn from the twisting spindle of the twisting device to the cheese. In order to provide a yarn supply device for a station of a flyer-type multiple twisting machine, a station of a flyer-type multiple twisting machine and a method for quickly and comfortably supplying a cheese to a twisting process, it is provided that the yarn supply device has a cheese supply channel comprising a yarn inlet and a yarn outlet arranged in the region of the twisting device, which yarn inlet can be arranged in the region of the cheese stand, in particular above the feed cheese or in the region from the upper part of the flyer-type multiple twisting machine up to the delivery column. It has a compressed air device for generating an air flow in the cheese supply channel which aligns the yarn inlet or the yarn outlet.

Description

Technical Field

[0001] This invention relates to a yarn supply device for a station of a wing-spindle multi-strand twisting machine, used to supply packaged yarn to a twisting device having twisting spindles. The invention also relates to a station of a wing-spindle multi-strand twisting machine having a yarn supply device. Background Technology

[0002] Splicing or twisting is a mechanical yarn finishing method to produce twisted yarns with specific performance characteristics. Splicing here refers to a special twisting method where two yarns are twisted together without the yarns themselves acquiring twist. The main advantage of splicing or twisting is the resulting yarn's higher tensile strength.

[0003] A wing-type multi-strand twisting machine typically has multiple stations arranged side-by-side in the longitudinal direction of the machine. Each station usually includes a spindle with a first feed bobbin inserted and a splicing device mounted on the frame for receiving a second feed bobbin. The yarn is drawn from the feed bobbin and, generally maintained at a constant tension by a suitable yarn brake, is twisted and wound into a twisted bobbin in a winding unit. When using a twisting spindle, the first feed bobbin is placed in a can on a rotating spindle. The can and the feed bobbin itself are fixed and cannot rotate. The so-called inner yarn is drawn upwards axially from the first feed bobbin and guided through the inner yarn brake in its path to the twist point or junction with the outer yarn.

[0004] The second feed bobbin from which the yarn, known as the outer yarn, is drawn is typically arranged above the twisting device within the bobbin holder. After the outer yarn has passed the outer yarn brake and possibly the turning device, it enters the hollow spindle axially from below and exits at the spindle on the circumference of the yarn storage tray. In the case of a yarn air loop, the outer yarn rotates around the bobbin and is guided to the air loop guide. Here, the outer yarn wraps around the inner yarn, hence this is also called the twist point.

[0005] An extraction device is installed above the twist point to extract the twisted yarn and supply it to the winding device. The winding device includes a drive roller, a yarn traverse device, and a winding bobbin driven by friction from the drive roller.

[0006] The bobbin holder of a known wing-type multi-strand twisting machine generally has two bobbin inserts to accommodate the yarn bobbins and spare bobbins. The spare bobbins are then connected to the yarn end of the first bobbin by a knot, thus creating a permanent yarn flow. The operator's task is to grasp the yarn end of the feed bobbin placed on the bobbin holder when put into use, thread it through the first yarn guide eye and the yarn brake, and then guide the yarn into the yarn channel of the twisting spindle. To facilitate the operation, it is known from the prior art that the bobbin holder can be mechanically or pneumatically lowered and positioned in the upper region of the wing-type multi-strand twisting machine. Alternatively, in the case of a so-called fixed bobbin holder where the bobbin inserts are arranged above the workstation, the operator grasps the yarn bobbin using a suitable stepped lifting device, such as a staircase movable along the wing-type multi-strand twisting machine or a lifting structure extending along the machine.

[0007] However, stairs that can move along the machine have the following disadvantages: they make it difficult to quickly eliminate yarn breakage in the coil liner area. Stairs extending along the machine are located within the machine's displacement area and therefore make access to the spindle area difficult or increase the workload for operators working at the spindles due to the need to bend over. Summary of the Invention

[0008] In view of this, the present invention provides a yarn supply device, a station of a wing-spindle multi-strand twisting machine, and a method for supplying yarn packages to the twisting process quickly and comfortably, based on the following objectives.

[0009] The present invention accomplishes this task through a yarn supply device, a wing-type multi-strand twisting machine station, and a method.

[0010] The yarn supply device of the present invention is characterized by having a yarn supply channel with a yarn inlet and a yarn outlet that can be arranged in the area of ​​the twisting device. The yarn inlet, in particular with respect to the workstation installation position, can be arranged above the feed bobbins or in the area extending from the upper section of the wing-type multi-strand twisting machine directly to the conveyor train. A compressed air device is also provided for generating an airflow aligned with the yarn inlet or yarn outlet within the yarn supply channel. In the context of the present invention, the upper section of the wing-type multi-strand twisting machine, in relation to the workstation installation position, refers to an area that preferably begins in the upper half of the wing-type multi-strand twisting machine, more preferably in the upper third of the wing-type multi-strand twisting machine, and even more preferably in the upper quarter of the wing-type multi-strand twisting machine, and extends to the highest point of the wing-type multi-strand twisting machine located below the conveyor train.

[0011] The yarn supply channel of the yarn supply device of the present invention is defined as the yarn path of the yarn supplied above the twisting device within the bobbin frame, for example, from a feed bobbin mounted on the bobbin frame or from a support of a conveyor column arranged above a wing-type multi-strand twisting machine. The yarn here passes through the yarn supply channel via, for example, a yarn inlet that may be arranged in the bobbin frame area, to a yarn outlet arranged in the twisting device area, from where the yarn can then be supplied to the twisting device in a known manner for re-twisting, where it is wound onto an inner yarn drawn from another feed bobbin arranged on the twisting spindle.

[0012] With the aid of the compressed air device of the present invention, it is possible to generate an airflow within the yarn supply channel, directed toward the yarn inlet or yarn outlet. In generating an airflow directed toward the yarn inlet, it is therefore possible, for example, for the operator, to arrange the starting yarn in the yarn outlet or yarn outlet area and then, by means of the compressed air device and the airflow directed toward the yarn inlet, to deliver it to the yarn inlet, where the starting yarn can then be comfortably grasped by the operator and, for example, engaged with the yarn end of the yarn fed to the bobbin within a bobbin holder, so that it can subsequently be supplied to the twisting process.

[0013] With the airflow aligned with the yarn outlet, the free end of the yarn cone is comfortably positioned by the operator in the yarn inlet area, and then conveyed to the yarn outlet in the yarn supply channel by the suction airflow, where it is then supplied to the twisting process in a known manner.

[0014] The yarn supply device of the present invention thus allows the operator to comfortably supply outer yarn, located above the twisting device, for example from a feed bobbin located on a bobbin rack, without the need for step-raising devices such as steps, ladders, or stairs. Yarn breakage in the feed bobbin area located on the bobbin rack can also be quickly and reliably prevented. Furthermore, because no step-raising device is required, the workstation can be well accessed within the twisting device area.

[0015] Furthermore, the use of a package yarn supply channel offers the following advantages: package yarn supplied above the twisting device, such as from the feed bobbins, is reliably guided within the channel. Depending on the design of the package yarn supply channel, the yarn pre-brake, which would normally be located in the package frame area, can be omitted while maintaining the required minimum yarn tension to ensure a taut yarn path. The package yarn supply channel also prevents slack yarn paths, which could lead to the yarn contacting adjacent spindles. If necessary, the required yarn brake can be located within an easily accessible manual operation area, i.e., the yarn exit area.

[0016] The design of the yarn supply channel is, in principle, freely selectable. However, according to a particularly advantageous design of the invention, the yarn supply channel has a one-piece or multi-piece tube body. The tube body is an object that coaxially surrounds the yarn package or starting yarn, thereby ensuring that the yarn package or starting yarn is fully and reliably guided within the yarn supply channel. Furthermore, the use of the tube body has the advantage that an airflow aligned with the yarn inlet or outlet can be generated in a particularly simple and reliable manner using a compressed air device. For example, a tube opening that can be arranged in the package frame area forms a yarn inlet, while a tube opening that can be arranged in the twisting device area forms a yarn outlet.

[0017] The design of the tube, particularly its extension principle between the yarn inlet and the yarn outlet, is freely selectable. However, according to a particularly advantageous design of the invention, the tube has two, preferably three, sections connected at 90° angles.

[0018] According to a particularly preferred design of the tube body consisting of three sections, the tube body has two substantially parallel sections vertically oriented with respect to the position of the yarn supply device at the work station. These sections are interconnected within the bobbin area by a horizontally extending upper intermediate section, such that the two vertically extending sections are connected at approximately a 90° angle by a middle section, preferably extending longitudinally in the machine. According to this design, the tube body forms a yarn supply channel that extends vertically upward from the yarn inlet with respect to the position of use via the first section. In the upper region of the first section, a horizontally extending second section connects to the first section, and a third section connects to the second section, extending vertically downward from the second section towards the twisting device until the yarn outlet. The characteristic of this tube body design is that it provides a particularly reliable yarn direction for the yarn. Furthermore, the deflection generates minimal tension in the yarn during yarn movement, thereby eliminating the need for a yarn brake directly on the bobbin. Alternatively, steering components commonly used in twisting practice, such as ceramic components or components with rolling steering functions, can be used between tube segments.

[0019] The compressed air device is designed in principle to be freely selectable, wherein it is designed to generate an airflow aligned with the yarn inlet or yarn outlet within the yarn supply channel when activated by the operator.

[0020] According to a particularly advantageous design of the invention, the compressed air device has a fixed injector unit or a mobile manual operating unit, which is designed to generate an airflow aligned with the yarn inlet within the tube.

[0021] A mobile manual operating unit, such as a compressed air spray gun connected to a compressed air generating unit, can be held by the operator and used to generate airflow of a specific orientation within the tube as needed. Using a compressed air spray gun as a mobile manual operating unit allows it to be used at multiple workstations. Furthermore, the operator's manual operation ensures particularly accurate airflow metering. In the case of a fixed injector unit, it is appropriately connected or can be connected to the tube, allowing the operator to generate airflow within the tube by activating the injector unit, for example, using an elbow mounted on the machine. Manual operating units offer the advantage of great flexibility. Fixed injector units, on the other hand, are characterized by extremely reliable, simple, and quick manual operation. Furthermore, this allows the operator to use both hands to move the yarn closer.

[0022] The design of the tube body for connection to a compressed air device is, in principle, freely optional. Therefore, it is theoretically possible to generate airflow within the yarn supply channel or the tube body such that the compressed air device is directly connected to the yarn inlet or outlet. However, according to a particularly advantageous design of the invention, the tube body has a connection port for connecting the compressed air device in the area between the yarn inlet and the yarn outlet, preferably in the yarn outlet area. According to this design, the tube body has an additional opening for connecting the compressed air device, thereby subsequently generating suitable airflow within the tube body, wherein the yarn inlet and the yarn outlet remain freely accessible, thereby supplementarily improving operational comfort.

[0023] According to another design of the invention, the tube body is adjustable between a working position and an operating position that shifts the yarn inlet toward the twisting device. In other words, the tube body preferably comprises a first tube section having a yarn inlet and a second tube section connectable to the first tube section, wherein at least the first tube section having the yarn inlet is adjustable between a working position and an operating position that shifts the yarn inlet toward the feed bobbin or in a direction opposite to the conveyor train. Particularly preferably, the tube body has a design with three tube sections as previously preferred, wherein at least one of the vertical tube sections is composed of at least two interlocking tube body parts. The relative mobility allows compensation for movement of the yarn inlet, such that the tube body section having at least the yarn outlet is protected from this movement. The interlocking tube body parts are also preferably provided with a seal located therebetween to prevent airflow loss in the presence of airflow. The seal can preferably be designed to be movable, having dimensions corresponding to the length of movement in the direction of movement, or fixedly mounted on a portion of the tube within the range of movement to ensure a reliable seal between two interlocking tube portions. According to this design, at least the tube section can be adjustablely positioned at the work station with a yarn inlet, wherein in the operating position the yarn inlet is adjusted toward the twisting device in relation to the use position, where the yarn inlet is then comfortably accessible to the operator in the operating position. Alternatively, preferably, the entire tube can be adjustable at the work station such that adjustment of the tube causes not only an adjustment movement of the yarn inlet but also a simultaneous adjustment movement of the yarn outlet. The working position here has a greater distance relative to the twisting device than the operating position. In other words, the yarn inlet is farther from the twisting device in the working position than in the operating position, and this distance is understood particularly in relation to the vertical mounting position of the twisting device.

[0024] Therefore, in the advantageously designed tube body, as described above, consisting of three tube segments joined at 90° angles, it is possible to vertically shift the tube body at the work station with respect to the operating position, wherein the yarn inlet is reliably and comfortably accessible in the operating position, and the tube body is positioned in the optimal location for yarn entry into the bobbin in the working position. The yarn supply device designed according to this scheme allows, for example, the bobbin to be comfortably positioned in the yarn inlet area after the tube body is shifted to the operating position, and the bobbin to be conveyed to the yarn outlet by means of an airflow aligned with the yarn outlet, from which the bobbin can then be comfortably guided by the operator to the twisting process. Particularly advantageously for this design is that the compressed air device is designed in the operating position of the tube body to generate an airflow aligned with the yarn outlet.

[0025] According to another preferred embodiment, the yarn supply device is designed to be movable along the stations of the wing-type multi-strand twisting machine. This eliminates the requirement to install or arrange a yarn supply device at each station of the wing-type multi-strand twisting machine. Therefore, one yarn supply device can be used for at least two or more stations.

[0026] According to an advantageous design of the invention, the yarn outlet is connected to the twisting device such that an airflow aligned with the yarn outlet is guided through an air-permeable yarn brake and twisting spindle. This design allows the yarn to be guided entirely from the feed bobbin through a three-section yarn supply channel, the yarn brake, and the twisting spindle by means of airflow, thus eliminating the need for a second operation by the operator to pass the yarn through the yarn brake at the outlet point. The yarn is conveyed by airflow all the way to the area where it engages with the twisting spindle along the yarn's direction.

[0027] The wing-spindle multi-strand twisting machine station according to the invention, for producing twisted yarn consisting of yarn drawn from feed bobbins on a bobbin holder or from a support of a conveyor column positioned above a wing-spindle multi-strand twisting machine and inner yarn drawn from another feed bobbin on a twisting spindle, is characterized by arranging the yarn supply device according to the aforementioned inventive method or improvement thereof. Here, the station of the invention is characterized by allowing the operator extremely comfortable access to both the yarn and the twisting device.

[0028] The method according to the invention for supplying packaged yarn to a twisting device having a twisting spindle at a station of a wing-type multi-strand twisting machine is characterized by performing the following steps when using the aforementioned yarn supply device of the present invention or its improvement:

[0029] - Generates an airflow in the yarn supply device that is aligned with the yarn inlet or yarn outlet.

[0030] - The starting yarn is arranged at the yarn outlet or the packaged yarn is arranged at the yarn inlet, wherein the starting yarn or packaged yarn is drawn into the yarn outlet or the yarn inlet by means of the generated airflow, is conveyed in the packaged yarn guide channel along the direction of the airflow, and is discharged from the yarn outlet and the yarn inlet at another opening.

[0031] - The delivered starter yarn and cone yarn are acquired and connected in the area outside the yarn inlet, or the cone yarn is automatically introduced into the twisting device in the yarn outlet area.

[0032] The method of the present invention allows for the feeding of yarn cones to the twisting device in a particularly simple and comfortable manner. The yarn cones pass through a yarn supply channel via, for example, a yarn inlet that may be arranged in the area of ​​the yarn cone holder, and reach a yarn outlet arranged in the area of ​​the twisting device. The yarn cones can then be re-twisted by the twisting device from the yarn outlet in a known manner.

[0033] With the aid of the compressed air device of the present invention, it is possible to generate an airflow within the yarn supply channel, which is directed toward the yarn inlet or yarn outlet. Therefore, in the case of generating an airflow directed toward the yarn inlet, it is possible, for example, for the operator, to arrange the starting yarn in the yarn outlet or in the yarn outlet area and then, by means of the compressed air device and the airflow directed toward the yarn inlet, to deliver it to the yarn inlet, where it can then be comfortably picked up by the operator and, for example, engaged with the yarn head of the feed bobbin in the bobbin holder, so that it can subsequently be supplied to the twisting process.

[0034] With an airflow aligned with the yarn outlet, the free end of the yarn cone is comfortably positioned in the yarn inlet area by the operator, and then conveyed to the yarn outlet within the yarn cone supply channel by the airflow, where the yarn cone is subsequently supplied to the twisting process in a known manner. Attached Figure Description

[0035] The embodiments of the present invention will now be explained with reference to the accompanying drawings, in which:

[0036] Figure 1 A front view schematic diagram of a wing-type multi-strand twisting machine with a yarn supply device is shown.

[0037] List of reference numerals

[0038] 1-wing spindle type multi-strand twisting machine

[0039] 2 workstations

[0040] 3-cell rack

[0041] 4. Feed the tube

[0042] 5-Twisting Device

[0043] 6 drive and operation units

[0044] 7 Control devices

[0045] 8 yarn supply channels;

[0046] 9 tube body

[0047] 9a First Pipe Section

[0048] 9b Second Pipe Section

[0049] 9c third pipe section

[0050] 10 Yarn Inlet

[0051] 11 Yarn Exports

[0052] 12-roll bobbin

[0053] 13 Yarn supply devices

[0054] 14 drive rollers

[0055] 15 supports Detailed Implementation

[0056] Figure 1 A portion of a wing-spindle multi-strand twisting machine 1 is shown in the front view schematic diagram. Such a spinning machine has multiple identical workstations 2 in its longitudinal side region.

[0057] In addition, such spinning machines generally have a drive and operation unit located at the end of the machine, which includes, for example, the necessary energy device, various drive devices, and a central control device 7.

[0058] Some stations 2 of the wing-type multi-strand twisting machine 1 have bobbin frames 3 for supplying outer yarn or cone yarn, the bobbin frames are used to hold feed bobbins 4, and the outer yarn or cone yarn is drawn out from the feed bobbins.

[0059] The station 2 of the wing-type multi-strand twisting machine 1 also has twisting spindles (not shown here) in the twisting device 5, which are used to accommodate the second feed bobbin and extract the so-called inner yarn wrapped with the outer yarn above the twisting spindle.

[0060] To supply yarn from the feed bobbins 4 to the twisting device 5, station 2 has a yarn supply device 13 with a yarn supply channel 8. The tube body 9 consists of three sections 9a, 9b, and 9c, positioned within the bobbin holder 3 area at station 2 via a bracket 15. The second section 9b connects to the first section 9a, which forms a yarn inlet 10 within the feed bobbin 4 area with its open free end. The second section extends parallel to the machine longitudinal direction, perpendicular not only to the first section 9a but also to the third section 9c. The second section 9b thus forms a horizontal extension of the yarn supply channel 8. At its end opposite the second section 9b, the third section 9c forms a yarn outlet 11 within the twisting device 5 area with its open end, from which the yarn can be guided by the operator into the twisting device 5.

[0061] To prepare for the twisting process, the operator uses a compressed air device, such as a compressed air gun or an elbow-operated injector device (not shown here), to deliver the starting yarn via yarn outlet 11 to yarn inlet 10 through a suitable airflow. At the yarn inlet, the starting yarn is twisted with the free end of the package yarn and can then be supplied to the twisting process, wherein the package yarn then extends through the package yarn supply channel 8.

[0062] In an alternative embodiment, not shown here, the yarn supply channel 8 can be... Figure 1The working position shown is vertically adjusted between the operating position (not shown here) and the operation position associated with the use position, wherein in the operation position the yarn inlet 10 is vertically adjusted toward the winding bobbin 12, and the resulting twist is wound onto the winding bobbin under the drive of the drive roller 14.

[0063] In the operating position, the operator has the following possibility: the free end of the yarn package placed on the feed bobbin 4 can be comfortably conveyed from the yarn inlet 10 to the yarn outlet 11 by means of a compressed air device, such as a manually operated compressed air gun, wherein an airflow from the yarn inlet 10 to the yarn outlet 11 is generated by the compressed air device, so that the yarn reaches the yarn outlet 11 directly by the suction airflow. The free end of the yarn package in the area of ​​the yarn outlet 11 can be supplied to the twisting device 5 by the operator.

Claims

1. A yarn supply device (13) for a station (2) of a wing-spindle multi-strand twisting machine (1), the yarn supply device (13) being used to supply packaged yarn from a feed bobbin (4) of a bobbin holder (3) of the wing-spindle multi-strand twisting machine (1) or from a conveyor line located above the wing-spindle multi-strand twisting machine (1) to a twisting device (5) having twisting spindles, and to supply starting yarn from the twisting spindles of the twisting device (5) to the packaged yarn. Its features are, - A yarn supply channel (8) is provided with a yarn inlet (10) and a yarn outlet (11) arranged in the area of ​​the twisting device (5), the yarn inlet being able to be arranged in the area of ​​the bobbin holder (3), and - It is also provided with a compressed air device for generating an airflow aligned with the yarn inlet (10) or the yarn outlet (11) within the yarn supply channel (8).

2. The yarn supply device (13) according to claim 1, characterized in that, The yarn supply channel (8) has a one-piece or multi-piece tube body (9).

3. The yarn supply device (13) according to claim 2, characterized in that, The tube body (9) has two tube segments (9a, 9b, 9c) connected at a 90° angle.

4. The yarn supply device (13) according to claim 2 or 3, characterized in that, The compressed air device has a fixed injector unit or a mobile hand-operated unit, which is designed to generate an airflow within the tube (9) aligned with the yarn inlet (10).

5. The yarn supply device (13) according to claim 2, characterized in that, The tube (9) has a connection port for connecting the compressed air device in the area between the yarn inlet (10) and the yarn outlet (11).

6. The yarn supply device (13) according to claim 2, characterized in that, The tube body (9) includes a first tube section (9a) having the yarn inlet (10) and a second tube section (9b) connected to the first tube section (9a), wherein at least the first tube section (9a) having the yarn inlet (10) is adjustable between a working position and an operating position, wherein in the operating position the yarn inlet (10) is displaced toward the twisting device (5).

7. The yarn supply device (13) according to claim 6, characterized in that, The working position has a greater distance relative to the twisting device (5) than the operating position.

8. The yarn supply device (13) according to claim 6 or 7, characterized in that, The compressed air device is designed in the operating position of the tube (9) to generate an airflow aligned with the yarn outlet (11).

9. The yarn supply device (13) according to claim 1, characterized in that, The compressed air device can be operated by means of an elbow lever.

10. The yarn supply device (13) according to claim 1, characterized in that, The yarn outlet (11) is connected to the twisting device (5) such that the airflow aligned with the yarn outlet (11) is guided through the yarn brake and the twisting spindle.

11. The yarn supply device (13) according to claim 1, characterized in that, The yarn inlet can be located in the area above the feed bobbin (4) or in the area extending from the top of the wing-type multi-strand twister to the conveyor train.

12. The yarn supply device (13) according to claim 1, characterized in that, The yarn supply channel (8) is composed of one or more tubes.

13. The yarn supply device (13) according to claim 2, characterized in that, The tube body (9) has three tube segments (9a, 9b, 9c) connected at a 90° angle.

14. The yarn supply device (13) according to claim 2, characterized in that, The tube (9) has a connection port for connecting the compressed air device in the area of ​​the yarn outlet (11).

15. The yarn supply device (13) according to claim 6, characterized in that, In the operating position, the yarn inlet (10) is moved toward the feed bobbin (4) or in the opposite direction to the conveyor column.

16. A station (2) of a wing-spindle type multi-strand twisting machine for producing twisted yarn composed of bobbins drawn from feed bobbins (4) on a bobbin holder (3) or from bobbins drawn from supports of a conveyor column disposed above the wing-spindle type multi-strand twisting machine (1) and inner yarn drawn from another feed bobbin (4) on a twisting spindle, characterized in that, The device includes a yarn supply device (13) according to any one of claims 1 to 15.

17. A method for supplying bobbin yarn to a twisting device (5) having a twisting spindle at a station (2) of a wing-type multi-strand twisting machine (1), characterized in that, Perform the following steps when using the yarn supply device (13) according to any one of claims 1 to 15: - Generates an airflow aligned with the yarn inlet (10) or yarn outlet (11), - The starting yarn is arranged at the yarn outlet (11) or the package yarn is arranged at the yarn inlet (10), wherein the starting yarn or the package yarn is drawn into the yarn outlet (11) or the yarn inlet (10) by means of the generated airflow, is conveyed in the package yarn supply channel (8) along the airflow direction, and is discharged from the yarn outlet and the yarn inlet at another opening. - The delivered starting yarn and the packaged yarn are acquired and connected in the area outside the yarn inlet (10), or the packaged yarn is introduced into the twisting device (5) in the area of ​​the yarn outlet (11).

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