Method for producing a wound package with a synthetic thread

Abstract

The invention relates to a method and a device for producing a wound package (13) with a synthetic thread (12). A plurality of filaments (120) are extruded from a plastic melt, said filaments being combined in order to form a synthetic thread (12) and wetted with a first liquid (27) during the combination process, wherein the synthetic thread is drawn by means of a galette (20.1-20.2) and is wound up by means of a winding device (100) in order to form the wound package (13). A loose thread end (31) of the wound package (13) is fixed to the wound package (13) using a second liquid (28) in order to remove the wound package (13) from the winding device (100).

Description

[0001] Method for producing a bobbin package with a synthetic thread

[0002] The invention relates to a method and a device for producing a bobbin package with a synthetic thread according to the preamble of claim 1 and claim 10, respectively.

[0003] In the production of synthetic threads, the thread produced from a polymer melt is drawn off and treated and wound into a spool pack. The spool pack serves to store the thread and is then fed into a further processing process.

[0004] The spool pack comprises a core onto which the synthetic yarn is wound using a winding device. To ensure continuous extrusion and yarn production during the melt spinning process, the yarn is wound continuously into the spool packs without major interruptions.

[0005] For this purpose, the above-mentioned winding devices are used, which have two winding spindles projecting from a rotatably mounted winding turret.

[0006] The winding spindles can be moved alternately into a winding position and a take-off position by rotating the winding turret. In the winding position, the thread is wound into a bobbin package on the respective winding spindle.

[0007] As soon as the bobbin package reaches a predefined final diameter, the bobbin spindle is moved to the take-off position. In this position, the thread is wound around the circumference of the bobbin package into a final winding and then caught and severed by the bobbin spindle held in the winding position. In the winding position, the thread is then wound into a new bobbin package.

[0008] The bobbin package held in the take-off position is removed from the bobbin spindle after the bobbin spindle has been decelerated and fed into a further processing step. Any loose thread end created during the final winding must remain as close to the circumference of the bobbin package as possible to prevent unwanted unwinding during the removal of the bobbin package from the bobbin spindle and during transport.

[0009] In order to fix the loose thread end on the winding package directly during a winding change on the circumference of the winding package, a winding device of this type is known from DE 44 13 885 A1, in which a thread fixing application device is assigned to the winding spindles, which has a nozzle for wetting the thread with water or a preparation medium.

[0010] During a bobbin change, the nozzle is guided to the thread wound as the final winding. The thread is then moistened before cutting to ensure the thread adheres as closely as possible to the circumference of the bobbin package. To assist this, the thread fixation application device can be equipped with a pressure roller that is placed on the circumference of the bobbin package. The water or preparation oil used must ensure that the loose thread end can be adequately fixed.

[0011] The object of the invention is therefore to provide a method and a device with which a secure fixing of the loose thread end to the spool package is possible.

[0012] This object is achieved with regard to the method according to the invention with a method having the features of claim 1.

[0013] The object with regard to the device is achieved according to the invention with a device having the features according to claim 10.

[0014] According to one aspect of the invention, a method for producing a bobbin package with a synthetic thread is provided. A plurality of filaments are extruded from a plastic melt, combined to form a synthetic thread, and wetted with a first liquid during combination. The synthetic thread is drawn off by means of a godet and wound onto the bobbin package by means of a winding device. To remove the bobbin package from the winding device, a large thread end of the bobbin package is fixed to the bobbin package with a second liquid.

[0015] This allows a secure fixation of the loose thread end and at the same time a good preparation of the thread to be produced before winding with a so-called spin finishing and an additional security of a safe removal and transport of the spool package after winding.

[0016] According to one embodiment of the method, the thread is severed before the winding package is removed and after the cutting, the second liquid is applied to an active point of the winding package.

[0017] This allows for precise and accurate positioning and application of the second liquid to the coil pack. Because the second liquid is applied to a corresponding final coil of the coil pack, this can be done systematically and regularly at the same position.

[0018] According to a further embodiment of the method, the first liquid used when combining the plurality of filaments into a thread differs from the second liquid used to fix the loose thread end.

[0019] This offers the advantage that the optimal liquid can be used for preparing and fixing the thread or the loose thread end.

[0020] According to a further embodiment of the method, the first liquid used to combine the plurality of filaments into a thread is the same as the second liquid used to fix the loose thread end.

[0021] This offers the advantage of eliminating the need for separate storage of different liquids, which would require additional tanks and / or additional mixing and monitoring of the other liquid. Furthermore, there is a corresponding potential for liquid savings if only one liquid is used for both spin finishing and securing the loose thread end.

[0022] According to a further embodiment of the method, the first liquid, which is used when combining the plurality of filaments into a thread, is supplied continuously, wherein the second liquid, which is used to fix the loose thread end, is supplied discontinuously.

[0023] Depending on the process step, a different supply of the respective liquid is required at the corresponding position. The first liquid, which is used to combine the filaments and spin-finishing, must be supplied continuously during the manufacturing process and during the extrusion of the filament from the melt to ensure reliable production. In contrast, the securing of a loose thread end does not take place continuously, but rather depends on the removal process from a winding device. The supply of this liquid, also called the second liquid, can therefore be interrupted when thread securing is no longer necessary and therefore takes place discontinuously.

[0024] According to another embodiment of the process, the first liquid and / or the second liquid act as a lubricant, anti-adhesion agent, and / or electrostatic inhibitor. The first and second liquids are composed in such a way that feeding, unwinding, and winding of the thread can take place without problems. The first liquid is preferably used for spin finishing.

[0025] The respective liquid acts as a lubricant to prevent potential friction on the corresponding components of the winding device. Furthermore, the first or second liquid also acts as an anti-stick agent, preventing sticking during winding or unwinding. Furthermore, the liquid acts as an electrostatic inhibitor, preventing the thread from becoming electrostatically charged, allowing it to be wound or unwound smoothly.

[0026] According to a further embodiment of the method, the first liquid comprises an emulsion comprising water and oil.

[0027] A water-oil emulsion is particularly advantageous for spin finishing when combining the numerous filaments into a single thread. The oil and water composition, in particular, acts as a lubricant, anti-adhesion agent, and electrostatic inhibitor.

[0028] According to another embodiment of the method, the second liquid comprises water, an adhesive, an adhesive or an emulsion comprising water and oil.

[0029] The second liquid, which is used to fix the loose thread end to the spool pack, should allow the loose thread end to adhere particularly well to the spool pack.

[0030] For example, water, a suitable bonding agent, an adhesive, and / or the emulsion of the first liquid can be used. Each composition has certain advantages and can also be adapted to the corresponding thread type.

[0031] In a further embodiment of the method, the first liquid and / or the second liquid are composed differently depending on the thread to be produced, in particular IDY, POY, FDY, HOY, BCF.

[0032] IDY (Industrial Yam) is also known as industrial yarn, BCF (Bulk Continuous Filament) as carpet yarn, POY (Pre-Oriented Yarn) as pre-drawn yarn, FDY (Full Drawn Yarn) as fully drawn yarn, and HOY (High Oriented Yarn) as highly drawn yarn. Depending on the type of yarn or thread used, different plastics and plastic compositions are required for the filament melt, which also results in corresponding differences in the titer, so that a special liquid composition is required for spin finishing or for securing the loose thread end to the bobbin package. The titer can also influence the required quantity of the respective liquid required for spin finishing and for securing the loose thread end.

[0033] According to a further aspect of the invention, a device for producing a bobbin package with a synthetic thread is provided, which device is particularly designed to carry out the method according to at least one of the above embodiments.

[0034] The device comprises a spinning device for extruding a plurality of filaments from a plastic melt, which are combined into a thread by means of a preparation nozzle, wherein the plurality of filaments are wetted with a first liquid by means of the preparation nozzle, and a winding device for winding the thread from the spinning device into a winding package. The winding device comprises a winding spindle and a traversing device for forming the winding package, as well as a thread fixing distribution device. The preparation nozzle is supplied with a first liquid, and the thread fixing application device is supplied with a second liquid.

[0035] This offers the advantage that both the spinning device and the winding device are supplied with the best liquid. Depending on the thread to be prepared or fixed, the optimal liquid can be used.

[0036] According to one embodiment of the device, the preparation nozzle is continuously supplied with the first liquid via a first supply line, and the thread fixation application device is discontinuously supplied with the second liquid via a second supply line. Since the process and production of the filaments takes place continuously during the extrusion of the plurality of filaments, a continuous supply of the first liquid is also necessary, whereby thread fixation is only required after a predetermined winding time and thus occurs intermittently and discontinuously.

[0037] Therefore, a different supply of the first liquid and second liquid to the respective preparation nozzle or to the thread fixation application device is required.

[0038] According to a further embodiment of the device, the first liquid and the second liquid are provided in a common liquid dispenser or in different liquid dispensers of the preparation nozzle and / or the thread fixing device.

[0039] This offers the advantage that only one liquid dispenser needs to be provided for the same liquids, while the separation into different liquid dispensers prevents unwanted mixing of the liquids.

[0040] The method and device according to the invention are explained in more detail below using associated embodiments with reference to the attached figures.

[0041] They represent:

[0042] Fig. 1 schematically shows a front view of an embodiment of a winding device with a thread fixing application device

[0043] Fig. 2 shows schematically in a side view an embodiment of a spinning device with a preparation nozzle and

[0044] Fig. 3 is a block diagram showing the method steps for producing a bobbin package with a synthetic thread. In Fig. 1, an embodiment of a winding device 100 for continuously winding a thread 12.1 to 12.3 is shown in a front view and in Fig. 2, an embodiment is shown schematically of a spinning device 200 in a side view.

[0045] The embodiment of the winding device 100 shown in Fig. 1 winds the thread 12.1 to 12.3 produced by the spinning device 200 into a winding package 13 at winding points 4.1 to 4.3.

[0046] In the following, the winding point 4.1 and the corresponding positions for the thread 12.1 are described in particular, since the winding points 4.2 to 4.3 and the corresponding positions on the spinning device 200 are identical.

[0047] Furthermore, a reference coordinate system with XYZ directions is indicated in Figs. 1 and 2, which is intended to clarify the respective view. The reference coordinate system XYZ in Fig. 1 indicates the longitudinal extent of the winding device 100 in the X direction, the depth extent of the winding device 100 in the Y direction, and the vertical extent of the winding device 100 in the Z direction.

[0048] The reference coordinate system XYZ in Fig. 2 shows the longitudinal extent of the spinning device 200 in the X direction, the depth extent of the spinning device 200 in the Y direction and the height extent of the spinning device 200 in the Z direction.

[0049] The winding device 100 is positioned below the spinning device 200 in the Z direction, so that the threads 12.1 to 12.3 produced by the spinning device 200 can be wound by the winding device 100 at the associated winding stations 4.1 to 4.3.

[0050] The winding device 100 shown in Fig. 1 has a winding turret 2 which carries two cantilevered, rotatably mounted winding spindles 3.1 and 3.2.

[0051] The winding spindles 3.1 and 3.2 are arranged on the winding turret 2, offset by 180° from each other. Spindle motors (not shown) are assigned to the winding spindles 3.1 and 3.2 on the rear of the winding turret 2. The winding turret 2 is rotatably mounted in a machine frame 1 and coupled to a turret drive (not shown). By means of the turret drive, the winding spindles 3.1 and 3.2 can be pivoted alternately into a winding position and a removal position by the winding turret 2.

[0052] In the unwinding position, the winding spindles 3.1 and 3.2 interact alternately with a pressure roller 5 and a winding station 4.1 to 4.3. In this exemplary embodiment, a total of three winding stations 4.1 to 4.3 are arranged next to each other in the X-direction in the machine frame. The winding stations 4.1 to 4.3 are identical, so the following description will focus on winding station 4.1.

[0053] The winding station 4.1 has a traversing device 8, which is arranged upstream of a head thread guide 11 in the thread path for feeding a thread 12.1 to 12.3. Between the traversing device 8 and the winding spindles 3.1 and 3.2, the pressure roller 5 is rotatably mounted on a roller support 6. The roller support 6 is pivotally coupled to the machine frame 1. In order to lay the thread 12.1 to 12.3 at the associated winding station 4.1 to 4.3 on the circumference of a winding package 13, the traversing device 8 has traversing means (not shown in detail) for guiding the respective thread 12.1 to 12.3 back and forth at the associated winding station 4.1 to 4.3.

[0054] For this purpose, the traversing device 8 is coupled to a traversing drive 9, not shown.

[0055] Between the winding spindles 3.1 and 3.2, an interchangeable cutting device 14 is positioned on the machine frame 1, through which the thread 12 of the winding station 4.1 as well as the adjacent threads 12.2 to 12.3 of the winding stations 4.2 and 4.3 are guided and cut during a bobbin change. In the situation shown in Fig. 1, the bobbin change is carried out between the winding spindles 3.1 and 3.2, so that the winding spindle 3.1 is in the removal position with several bobbin packages 13 and the winding spindle 3.2 is in the winding position for winding new bobbins. The interchangeable cutting device 14 is pivoted between the winding spindles 3.1 and 3.2 and has already severed the thread 12.1 to 12.3, so that a loose thread end 31 is formed on the respective bobbin packages 13.

[0056] Such an interchangeable cutting device 14 is also known from DE 10 200 900 77 59 A1. Reference is made to the cited document at this point and no further explanation is provided.

[0057] In addition to the interchangeable cutting device 14, a thread fixing application device 15 is provided, which is held laterally on the machine frame 1.

[0058] The thread fixing application device 15, as shown in Fig. 1, has a carrier 18 located in a fixing position, so that, by means of the carrier 18, a thread fixing liquid, hereinafter also referred to as second liquid 28, can be applied to the respective winding spindles 3.1 and 3.2 by means of a liquid applicator 19 at an active point WS on the winding packages 13 mounted thereon. The active point WS is preferably on a final winding 29 of the winding package 13.

[0059] The carrier 18 is held in a pivoting arm 17, which can be moved back and forth between a rest position and the operating position shown by a movement actuator 16.

[0060] The pivot arm 17 is pivotally mounted on the machine frame 1. In the illustration shown in Fig. 1, the pivot arm 17 with the carrier 18 is in an operating position and fixes the loose thread end 31 to the winding package 13 at the knitting point WS. The second liquid 28, with which the loose thread end 31 is fixed to the winding package 13, is provided in a liquid dispenser 33, which is connected to the thread fixing device 15 via a first supply line 50 via the carrier 18, so that the thread fixing device 15 can be regularly supplied with the second liquid 28.

[0061] In Fig. 1, a further embodiment is also shown, in which the second liquid 28 stored in the liquid dispenser 33 is connected via a third supply line 53 to a preparation nozzle 42.1 to 42.3 of the spinning device 200, so that the preparation nozzle 42.1 to 42.3 can also be supplied with the second liquid 28 for thread fixing.

[0062] The third supply line 53 is only necessary if a single liquid dispenser is provided for both the winding device 100 and the spinning device 200.

[0063] Fig. 2 schematically shows a side view of the spinning device 200 in the longitudinal direction X. The spinning device 200 is also shown in two embodiments. The third supply line 53, which supplies the preparation nozzles 42.1 to 42.3 with a first liquid 27 for spin finishing, is connected in one embodiment to the liquid dispenser 33 of the winding device 100, which supplies the liquid application device 15 with the second liquid 28.

[0064] In the embodiment shown in Fig. 2, a first supply line 51 is also connected to the preparation nozzles 42.1 to 42.3 for applying the first liquid 27, which is provided in a liquid dispenser 34.

[0065] Furthermore, a third embodiment is also shown here, in which the preparation nozzles 42.1 to 42.3 are supplied with a first liquid 27 for spin finishing and a second liquid for thread fixing from the liquid dispenser 33 and the liquid dispenser 34.

[0066] The spinning device 200 has a spinning beam 40 for extruding a plastic melt into filaments 120, which has a plurality of spinneret plates 41.1 to 41.3, via whose capillaries the plastic melt, which is supplied via spinning pumps 44.1 to 44.3, is extruded to form the filaments 120.

[0067] The filaments 120 are combined at the respective preparation nozzle 42.1 to 42.3 into a thread 12.1 to 12.3 and guided by a thread guide 43.1 to 43.3 to the winding device 100, which draws off and guides the threads 12.1 to 12.3 via associated take-off godets 20.1 to 20.2. The take-off godets 20.1 to 20.2 can be arranged in pairs for POY yarns. When producing other yarns such as IDY, FDY, BCF, and HOY, additional godets may be required for tempering and drawing the respective thread 12.1 to 12.3.

[0068] For cooling the plastic melt or the filaments 120, a cooling device 45 is also shown, via which cooling air is supplied to the filaments so that they can also be drawn off by means of the godets 20.1 to 20.2 and have sufficient strength.

[0069] By means of the respective preparation nozzle 42.1 to 42.3, the plurality of filaments 120 are combined to form a thread 12.1 to 12.3, which is fed to the winding device 100 by means of the respective thread guide 43.1 to 43.3.

[0070] The drawing off or feeding is effected by means of godets 20.1 to 20.2 towards the winding device.

[0071] For FDY yarns, additional godets are required that can appropriately temper and stretch the yarn 12.1. This also applies to HOY, IDY, and BCF yarns. Only for POY are two godets 20.1 to 20.2 sufficient.

[0072] The respective preparation nozzle 42.1 to 42.3 is supplied with a first liquid 27 from a liquid dispenser 34 via a first supply line 51.

[0073] In another embodiment, the preparation nozzles 42.1 to 42.3 are supplied exclusively via the supply line 53, which is connected to the liquid dispenser 33 or liquid dispenser 34, which provides the second liquid 28, which is also used for the thread fixation by means of the thread fixation application device 15.

[0074] In a third embodiment, the preparation nozzle 42.1 to 42.3 is supplied both via the third supply line 53 from the liquid dispenser 33 and via the first supply line 51 of the liquid dispenser 34, which provides the first liquid 27.

[0075] The first liquid 27 and the second liquid 28 can be emulsions or mixtures of the same composition. However, the first liquid 27 and the second liquid 28 can also differ in their composition. For example, the first liquid 27 for spin finishing can be an emulsion comprising water and oil, while the second liquid 27 for thread fixing can comprise water, an adhesive, an adhesive, and / or an emulsion, wherein the emulsion consists of a different composition of water and oil than the first liquid 27.

[0076] Depending on which thread 12 is to be produced, the respective plastic melts extruded with spinneret plates 41.1 to 41.3 also differ. The spinneret plates 41.1 to 41.3 then have different capillary sizes for the respective thread types. These thread types can be, for example, IDY, POY, FDY, HOY, and / or BCF.

[0077] Each thread type also has a different linear density. This means that a different liquid must be supplied for the preparation of the thread at both the preparation nozzle 42.1 to 42.3 and the thread fixing application device 15, since a different quantity and quality of liquid must be applied depending on the thread type and linear density in order to ensure the desired quality with regard to spin finishing at the spinning device 200 and the fixing of the loose thread 31 at the spinning device 100.

[0078] The supply of the first liquid 27 to the respective preparation nozzle 42.1 to 42.3 preferably takes place continuously.

[0079] For this purpose, appropriate displacement or pumping devices can be provided which ensure a continuous supply of the first liquid 25.

[0080] The second liquid 28 is preferably supplied discontinuously via corresponding pumping devices which are controlled or regulated via a control system of the winding device 100, so that the second liquid 28 can be supplied to the thread fixing application device 15 at the right time and in sufficient quantity.

[0081] Fig. 3 shows a schematic block diagram showing the essential process steps for producing the winding package 13.

[0082] In a first process step S10, a plastic melt is extruded into a plurality of filaments 120 by means of spinneret plates 41.1 to 41.3.

[0083] In a further process step SI 1, the filaments 120 are combined at a preparation nozzle 42.1 to 42.3 to form a respective thread 12.1 to 12.3, with cooling simultaneously taking place via a cooling device 45.

[0084] The cooling device 45 is preferably a cylindrical housing which surrounds the area of ​​the extruded filaments 120 at least in sections, so that the cooling air can be directed to the filaments 120.

[0085] In a further step S12, a first liquid 27 is applied for a thread preparation for spin finishing. This thread preparation is applied via the preparation nozzles 42.1 to 42.3 and preferably comprises the first liquid 27, which is supplied from the liquid dispenser 34 via the first supply line 51.

[0086] The preparation nozzles 42.1 to 42.3 can also be supplied via the liquid dispenser 33, exclusively or in combination, which contains the second liquid 28.

[0087] In a further step S13, the withdrawal via the godets 20.1 to 20.3 and the winding of the respective threads 12.1 to 12.3 at the associated winding points 4.1 to 4.3 on the winding device 100 takes place.

[0088] In a further step S14, after the threads have been wound into a spool pack 13, the thread is severed by means of the interchangeable cutting device 14, creating a loose thread end 31 on the spool pack 13. In a subsequent step S15, the loose thread end 31 is then fixed by means of the thread fixing application device 15 with the second liquid 28 and / or the first liquid 27.

[0089] After fixing the loose thread end 31 on the winding package 13 and braking the winding spindle 3.1 or 3.2 accordingly, the completely wound winding package 13 can be removed in step 16.

[0090] List of reference symbols

[0091] 1 machine frame

[0092] 2 bobbin revolvers

[0093] 3.1, 3.2 Chuck

[0094] 4.1-4.3 Winding point

[0095] 5 pressure roller

[0096] 6 roller supports

[0097] 7 sleeve

[0098] 8 Traversing device

[0099] 11 Head thread guide

[0100] 12.1, 12.2, 12.3 thread

[0101] 13 spool pack

[0102] 14 Change cutting device

[0103] 15 Thread fixing application device

[0104] 16 Motion actuator

[0105] 18 carriers

[0106] 19 liquid applicators

[0107] 20.1-20.2 Galette

[0108] 27 first liquid; preparation liquid

[0109] 28 second liquid; thread fixing liquid

[0110] 29 Final winding

[0111] 31 Thread end

[0112] 33 liquid dispensers

[0113] 34 liquid dispensers

[0114] 40 spinning beams

[0115] 41.1-41.3 Spinneret plate

[0116] 42.1-42.3 Preparation nozzle

[0117] 43.1-43.3 Thread guide

[0118] 44.1-44.3 Spinning pump

[0119] 45 Cooling device

[0120] 50 first supply line 51 second supply line

[0121] 53 third supply line

[0122] 120 filaments

[0123] 100 Winding device 200 Spinning device

[0124] WS active site

Claims

Patent claims Method for producing a spool pack (13) with a synthetic thread (12), wherein a plurality of filaments (120) are extruded from a plastic melt, which filaments are combined to form a synthetic thread (12) and are wetted with a first liquid (27) when combined, wherein the synthetic thread is drawn off by means of a godet roll (20.1-20.2) and wound up into the spool pack (13) by means of a winding device (100), characterized in that in order to remove the spool pack (13) from the winding device (100), a loose thread end (31) of the spool pack (13) is fixed to the spool pack (13) with a second liquid (28). Method according to claim 1, characterized in that before removing the winding package the thread (12) is severed and after the severing the second liquid (28) is applied to an active point (WS) of the winding package (13).Method according to at least one of the preceding claims 1 or 2, characterized in that the first liquid (27) used when combining the plurality of filaments (120) into a thread (12) is different from the second liquid (28) used to fix the loose thread end (31). Method according to at least one of the preceding claims 2 or 3, characterized in that the first liquid (27) used when combining the plurality of filaments (120) into a thread (12) is the same as the second liquid (28) used to fix the loose thread end (31). Method according to at least one of the preceding claims, characterized in that the first liquid (27) used when combining the plurality of filaments (120) into a thread (12) is supplied continuously, wherein the second liquid (28) used to fix the loose thread end is supplied discontinuously.

6. Method according to at least one of the preceding claims, characterized in that the first liquid (27) and / or the second liquid (28) act as a lubricant, as an anti-adhesion agent and / or as an electrostatic inhibitor.

7. Method according to at least one of the preceding claims, characterized in that the first liquid (27) comprises an emulsion comprising water and oil.

8. Method according to at least one of the preceding claims, characterized in that the second liquid (28) comprises water, an adhesive, an adhesive or an emulsion comprising water and oil.

9. Method according to at least one of the preceding claims, characterized in that the first liquid and / or the second liquid is composed differently depending on the thread (12) to be produced, in particular IDY, POY, FDY, HOY, BCF.

10. Device for producing a spool pack with a synthetic thread, which is particularly designed to carry out the method according to at least one of the preceding claims 1 or 9, with a spinning device (200) for extruding from a plastic melt a plurality of filaments (120), which are combined into a thread by means of a preparation nozzle (42.1 - 42.3), wherein the plurality of filaments (120) are wetted with a first liquid (27) by means of the preparation nozzle (42.1 - 42.3), and with a winding device (100) for winding the thread (12) from the spinning device into a spool pack (13), wherein the winding device (100) has a winding spindle (3.1, 3.2) and a traversing device (8) for forming the spool pack (13) and a thread fixing application device (15), characterized in that the preparation nozzle (42.1-42.3) is supplied with a first liquid (27) and the thread fixing application device (15) is supplied with a second liquid (28). Device according to claim 10, characterized in that the preparation nozzle (42.1-42.3) is continuously supplied with the first liquid (27) by means of a first supply line (50), and that the thread fixation application device (15) is discontinuously supplied with the second liquid (28) by means of a second supply line (51). Device according to at least one of the preceding claims 10 or 11, characterized in that the first liquid (27) and the second liquid (28) are provided in a common liquid dispenser (33) or in different liquid dispensers (33, 34) of the preparation nozzle (42.1-42.3) and / or the thread fixation application device (15).

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