WO2015049316A1

WO2015049316A1 - Apparatus for drawing off and winding up a thread bundle

Info

Publication number: WO2015049316A1
Application number: PCT/EP2014/071088
Authority: WO
Inventors: Philip JUNGBECKER; Dieter Wiemer; Klaus Schäfer; Ulrich Enders; Hansjörg MEISE; Detlev Schulz
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2013-10-02
Filing date: 2014-10-01
Publication date: 2015-04-09
Also published as: JP2016532012A; CN105658854B; JP6478985B2; DE112014004570A5; CN105658854A

Abstract

The invention relates to an apparatus for drawing off and winding up a thread bundle in a melt spinning process. The apparatus has a plurality of galettes, which are held in a projecting manner on a carrier wall of a galette module and interact with a winding machine having a plurality of winding points formed distributed along a winding spindle. According to the invention, to ensure that there is no mutual influence during stretching and relaxing of the threads, in particular in the case of a compact galette arrangement, the galettes on the carrier wall and having a high-temperature galette casing and the galettes having a low-temperature galette casing are arranged such that they are insulated from each other.

Description

Device for removing and winding a thread sharp

The invention relates to a device for drawing off and winding up a yarn sheet in a melt spinning process according to the preamble of claim 1.

In the production of synthetic threads by a melt spinning process, it is generally known that the filaments are spun after the melt and cooled for further treatment to a godet system with multiple godets and treatment equipment. In recent years, devices have arisen for this, in which the godet system cooperates with a winding machine, so that compact arrangements of the godets are required. There is a desire to allow the operation of the godet system and on the winding machine from an operating gear out without major aids.

Such a device is known for example from DE 10 2011 014 647 AI. In the known device, the godet system is arranged on a godet module, which is held directly by a machine frame above a winding machine. The godet module and the winding machine each have a control panel, which are arranged on an operating side and can be operated by an operator from an operating gear out. The godet system has a plurality of heated and unheated godets, which are cantilevered to a support wall. The number and type of godets is essentially dependent on the respective manufacturing process. So it's all commonly known that several godets for drawing and subsequent relaxation are required to produce a fully drawn thread. The required boundary conditions of the treatment stages are to be observed.

For example, from WO 13087434 AI a device for treating threads is known, in which the godets of the godet system are arranged in a common treatment chamber. A processing device downstream of the godet system for preparing the threads is arranged separately from the godets in an adjacent treatment chamber. Depending on the thread material, the godets must generate different thermal conditions in order to be able to carry out stretching and subsequent relaxation on the threads. In that regard, depending on the process and yarn material, the godet shells of the godets are heated with different surface temperatures. Due to the common environment of the godets, in particular the tempering of the threads via the godet sheaths is to be kept as close as possible within narrow tolerance ranges so as not to obtain any overarching treatment effects.

It is an object of the invention to improve the known device for removing and winding a group of threads to the effect that the thermal treatments required for the threads is also possible with very compactly arranged godets.

Another object of the invention is to provide an operator-friendly environment for performing all operator actions. This object is achieved in that the godets are arranged insulated from each other on the support wall with a high-temperature godet casing and the godets with a low-temperature godet casing.

Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims.

The invention is based on the recognition that high speed differences between the individual godets of the godet system are required in the production of fully drawn threads due to the usual stretch ratios. Thus, it is necessary for the godets heated to relax the filaments to have a substantially higher surface temperature in order to be able to carry out a sufficient thermal treatment on the filaments owing to the high peripheral speeds and relatively short contact times. The insulated arrangement of the high-temperature godet shells from the low-temperature godet sheaths avoids mutual influences on the tempering of the godets for drawing and for the relaxation of the yarns.

This can be further improved by arranging the high-temperature godet shells of the godets in a high-temperature chamber of a godet box held on the support wall and the godet shells of low godet godets in a low-temperature chamber of the godet box. Thus, additional isolation between the godets can be used to advantage in order to produce appropriate ambient temperatures for thermal treatment for stretching and for relaxation. In addition, the high-tem- supported godets advantageous from an operating environment of intensive operation s operations out hold.

The insulation between the high temperature chamber and the low temperature chamber can be interrupted only by at least one or more Fadendurchlas openings.

In order to advantageously keep subsequent treatments and their treatment facilities away from an operating environment, the development of the invention is preferably carried out in which the low-temperature chamber is divided within the godet box into a hot zone and a cold zone, wherein in the cold zone at least one treatment device is arranged. Thus, it is also possible to separate godets with unheated galette shells from the godets with low-temperature godet shells.

The control of the godets and the control of the winding machine is preferably carried out with the aid of a control panel, which is associated with an operating side and can be operated out of an operating gear out. In this case, the control panel is arranged laterally next to the low-temperature chamber of the godet box, so that an undesired thermal load on the control electronics is avoided.

In order to be able to directly serve the interface to an upstream spinning device, which is usually formed by a yarn feed direction, it is further provided that a yarn inlet device is formed on the godet module in the vicinity of the control panel for controlling the godets. This makes it possible for the operator, in addition to a key operation on the control panel, to simultaneously operate a manually guided suction gun to take over a group of yarns. can. In this way, very short downtimes can be realized during process interruptions.

In order to be able to receive the yarn sheet continuously from the spinning device in the event of a faulty change in the winding machine or a yarn break, the yarn inlet device has at least one movable multifilament yarn guide, a cutting device on the suction device. Thus, by moving the thread guide, the entire group of threads can be guided into a cutting device and a suction device cooperating with the cutting device. This process is preferably triggered automatically by monitoring sensors, the operator having immediate access to the control panel.

The yarn inlet device is preferably held on the support wall of the godet module, wherein the control panel for controlling the godets is formed transversely to the support wall on the godet module. Thus, both the thread inlet devices and the control panel for controlling the galette are operated directly from the operating gear out. For winding as possible a large number of threads, the development of the invention is preferably carried out, in which the godets of the godet module are assigned two mirror-symmetrically arranged winding machines. Thus, the projecting length of the winding spindle can be limited despite a high number of threads.

The device according to the invention will be explained in more detail below with reference to an embodiment with reference to the accompanying figures.

They show: Fig. 1 shows schematically a front view of a first embodiment of the device according to the invention

FIG. 2 is a schematic side view of the embodiment of FIG. 1. FIG

3 schematically shows a front view of the godet module of the exemplary embodiment from FIG. 1

4 is a schematic side view of the godet module of the embodiment of FIG. 2

Fig. 5 shows schematically a side view of another embodiment of the device according to the invention

FIGS. 1 and 2 schematically show a first embodiment of the device according to the invention for winding a plurality of threads. In Fig. 1, the embodiment shown in a front view. Fig. 2 shows schematically a side view. The following description applies to all figures, insofar as no explicit reference is made to one of the figures.

The device according to the invention for drawing off and winding up a group of synthetic threads has a godet module 16 and two winding machines 1.1 and 1.2 associated with the godet module 16. The winding machines 1.1 and 1.2 are identical in construction and face each other in mirror symmetry. In that regard, the structure of the winding machines 1.1 and 1.2 is explained only on one of the winding machines 1.1. The winding machine 1.1 has a winding turret 3. The winding revolver 3 is rotatably mounted in a machine frame 13 and driven by a turret drive 6. The winding turret 3 carries a first winding spindle 4 and a second winding spindle 5 arranged offset by 180 °. The winding spindles 4 and 5 are alternately pivoted by the winding turret 3 from an operating region into an alternating region or vice versa for the continuous winding of the yarns. The winding spindles 4 and 5 are designed to be driven independently of each other, wherein the winding spindle 4 are driven by the spindle drive 7 and the winding spindle 5 by the spindle drive 8.

In FIGS. 1 and 2, the winding spindles 4 of the winding machines 1.1 and 1.2 are each shown in an operating region in order to wind the associated yarn sheets 2.1 and 2.2 into a plurality of spools 11. The second winding spindles 5 are held in the change region, wherein the coils 11 have already been emptied by empty tubes 12.

In the operating range, the winding spindles 4 and 5 are assigned a pressure roller 9, which rests against the surface of the coils 11 during the winding of the threads. The pressure roller 9 is rotatably held on a roller carrier 10, wherein the roller carrier 10 is designed to be movable on the machine frame 13.

As can be seen from the illustration in FIG. 2, the winding machine 1.1 has four winding points 33, so that the yarn sheet 2.1 comprises four individual threads each. The number of winding stations 33 per winder 1.1 and 1.2, which determines the number of threads per yarn sheet, is exemplary. In principle, a plurality of winding points 33 may be formed parallel to one another on a winding spindle. Thus, ten, twelve or even more threads can be wound in parallel by means of a winding spindle to coils.

In order to be able to wind the threads in cross-wound bobbins, the winder on 1.1 has a traversing device 14 which is arranged upstream of the pressure roller 9. Per thread, the traversing device 14 each thread guide means to the threads within the winding 33 to be able to lead back and forth. The threads are fed via head thread guides 15, which are arranged above the traversing device 14 and have one guide element per thread. In this embodiment, the guide elements of the head thread guide 15 are formed as deflection rollers.

For controlling the drives, each take-up machine 1.1 and 1.2 has a separate control device, which is identified in FIG. 2 by the reference numeral 17. In addition to the control devices for the drives of the winding machines 1.1 and 1.2, the control device 17 can also have control devices for controlling godet motors of an upstream godet system 21. The control device 17 is coupled to a control panel 20.1 and 20.2 of the winding machines 1.1 and 1.2. As is apparent from the illustration in FIGS. 1 and 2, a support frame 24 is provided between the winding machines 1.1 and 1.2 and the godet module 16, on which the godet module 16 is held immediately above the winding machines 1.1 and 1.2. For the description of the godet module 16 reference will now be made in addition to the figures 3 and 4. FIG. 3 schematically shows a front view of the godet module 16 of the exemplary embodiment from FIG. 1, and FIG. 4 shows a schematic side view of the godet module 16 of the exemplary embodiment from FIG. 2. In this respect, the following description applies to FIGS. 1 to 4.

The godet module 16 carries a godet system 21 with a plurality of godets, which are arranged on a support wall 17. At a front side of the support wall 17 a plurality of heated galette coats of the godets 22 and a plurality of cold galette coats of the godets 23 are cantilevered, wherein on the back of the support wall 17 a plurality of godet motors 25 for driving the godet coats of the godets 22 and 23 are arranged. In that regard, the godet module 16 has a separation between the thread-guiding parts and the drives of the godets 22 and 23. The control of the godets 22 and 23 via a control panel 19 which is arranged on an end face of the support wall 17.

The heated galette coats of the godets 22 are arranged within a godet box 28. The godet box 28, which is shown in Fig. 4 without a door on the front side of the godets 22, for this purpose has an upper high-temperature chamber 34 and a lower low temper aturkammer 35, which are formed on the front side of the support wall 17. In the upper high-temperature chamber 34, the high-temperature godet shells 22.2, 22.3 and 22.4 of the heated godets 22 are arranged. The high-temperature chamber 34 is formed in an upper half of the godet module 16. The low-temperature chamber 35 underneath is divided in this embodiment into a hot zone 38.1 and into a cold zone 38.2. In the warm zone 38.1, a low-temperature godet jacket 22.1 of another heated godet 22 is arranged. For thread guidance, the godet box 28 has a thread inlet opening 36.1 and a thread outlet opening 36.2. The low-temperature chamber 35 is connected via several Fadendurchlas openings 39.1 and 39.2 with the high-temperature chamber 34. The thread inlet opening 36.1 and the thread outlet opening 36.2 are each formed in the lower low-temperature chamber 35.

The heated godets 22 in the low-temperature chamber 35 and the high-temperature chamber 34 are used for Ver stretching and relaxation of the threads. In this case, a draw zone is formed between the low-temperature godet shells 22.1 and the high-temperature godet sheath 22.2. The following godet shells 22.3 and 22.4 form one Aftertreatment zone at which the group of threads is guided on the high-temperature godet sheaths. In that regard, a higher temperature level is established in the high-temperature chamber 34 in the environment, which is isolated by the chamber walls from the environment in the low-temperature chamber 35. The heated godet jacket 22.1 in the low-temperature chamber 35 is usually heated to a significantly lower surface temperature for heating the group of threads. The surface temperature of the low temperature godet jacket 22.1 is in the range of 40 ° C to 150 ° C.

In contrast, the high-temperature godet shells 22.2 to 22.4 have a higher temperature level. The surface temperatures of the high temperature godet shells 22.2 to 22.4 are in the range of 120 ° C to 250 ° C.

As can be seen in particular from the illustration in FIGS. 2 and 4, a further unheated galette 23 and an additional treatment device are arranged in the cold zone 38.2 of the low-temperature chamber 35. In this exemplary embodiment, the treatment device is formed by a preparation device 26 and a swirling device 27.

The godet box 28 is closed by a door 40, so that the high-temperature chamber 34 and the low-temperature chamber 35 are shielded from the environment. The door 40 is shown only in FIG.

As is apparent from the illustrations in Fig. 1 to 4, a thread inlet device 18 is formed on the godet module 16 in the immediate vicinity of the control panel 19. In this exemplary embodiment, the thread inlet device 18 has a movable multifilament yarn guide 29, a deflecting yarn guide 32, a cutting device 31 and a cutter. Suction device 30, which are arranged on the front side of the support wall 17. The yarn inlet device 18 is arranged laterally next to the godet box 28 in the region of the low-temperature chamber 35 and assigned directly to an operating gear 37. The operating gear 37 runs parallel to the front ends of the godet module 16 and the winding machine 1.1 and 1.2, as is apparent in particular from FIG. In that regard, the control panel 19 of the godet module 16 is also directly facing the service corridor 37. To deduct the group of threads from an upstream spinning device not shown here, the thread inlet device 18 are assigned a plurality of unheated galette coats of godets 23, which are projectingly held on the support wall 17 laterally next to the godet box 28. The godet coats of the godets 23 is also assigned a godet motor 25 on the opposite side of the support wall 17.

In Figs. 1 to 4, the embodiment of the device according to the invention is shown in an operating situation in which the godet system 21 deducts a yarn sheet 2 from a spinning device. The threads are guided on the godet module 16 via the thread inlet device 18 and fed to the heated godets 22 within the godet box 28 via the unheated godets 23.

At the beginning of the process, it is common for an operator to pick up the filaments continuously extruded in the spinning device by means of a suction gun and apply them to the godets 22 and 23 and the treatment devices 26 and 27 and the winding stations 41. At the same time, the operation of the drives via the control panels 19, 20.1 and 20.2 can be actuated by the operator. Here, the control panel 19 on the godet module 16 also control functions of the on winder 1.1 and 1.2. The operating panels 19, 20.1 and 20.2 arranged in the operating environment of the operator are arranged at a large distance from the high-temperature chamber 34. In the event that a change of operation or a thread break occurs during operation at one of the winding points, the yarn inlet device 18 is activated via a monitoring sensor, not shown here, that the multi-thread guide 29 transfers the yarn sheet 2 into the cutting device 31 and the suction device 30. After the thread remnants are removed, the group of threads is taken over again by a manually guided suction gun of the thread inlet device 18 and performed by an operator for application to the godets and the winding stations of the winding machine. In the exemplary embodiments illustrated in FIGS. 1 to 4, the low-temperature chamber 35 of the godet box is arranged in the lower region in order to obtain the environment for the operating elements and for the operator as free as possible from temperature loads. For this purpose, the high-temperature chamber 34 is formed in an upper region of the godet box. In principle, however, it is also possible to arrange the high-temperature chamber 34 and the low-temperature chamber 35 at the same level, wherein the high-temperature chamber is preferably arranged in a region facing away from the service passage. In Fig. 5 for this purpose, a further embodiment of the device according to the invention is shown schematically. 5 shows a side view of the godet module 16, since the other devices, in particular the winding machines could be identical to the aforementioned embodiment of FIG. 1 executed. Therefore, only the formation of the godet module 16 will be explained in more detail below. In the embodiment shown in FIG. 5, a plurality of godets 22 and 23 are arranged on a support wall 17. Here, the non-heated godets with the reference numeral 23 and the heated godets are designated by the reference numeral 22. The number and arrangement of godets 22 and 23 is exemplary. Thus, two cold godets 23 are provided on an inlet side to remove a yarn sheet 2 from an upstream melt spinning device. The cold godets 23 are arranged downstream of four heated godets 22 in the yarn path, wherein the first heated godet 22 with a heated godet casing 22.1 forms a Niedertemperaturgalette whose shell surface is heated to a temperature in the range of 40 to 150 ° C. The following heated godets 22 with the heated godet coats 22.2, 22.3 and 22.4 form the so-called high-temperature godets whose shell surface are heated to a temperature in the range of 120 ° C to 250 ° C.

The godet shells 22.1 to 22.3 held cantilevered on the support wall 17 are shielded from the surroundings by a godet box 28, wherein the high temperature godets with the godet shells 22.2 to 22.4 are arranged in a high temperature chamber 34 and the low temperature godet with the godet shroud 22.1 in a low temperature chamber 35. The low-temperature chamber 35 is divided into a hot zone 38.1 and a cold zone 38.2, wherein the low-temperature godet 22 upstream cold godets 23 are held in the cold zone 38.2 of the low-temperature chamber 35.

Below the high-temperature chamber 34 and the temperature chamber 35, the godet box has a treatment chamber 41 which extends below the high-temperature chamber 34 and the low-temperature chamber 35. The treatment chamber 41 serves to receive further godets 22 which are not heated, as well as a plurality of treatment units, in order to receive at the face Scheme 2 after stretching and relaxing, carry out further treatment steps. As a treatment device in this embodiment, a preparation device 26 and a swirling device 27 is kept in the treatment chamber 41.

For thread guidance, the godet box 28 has a thread inlet opening 36.1 and a thread outlet opening 36.2. Within the low-temperature chamber 35, the hot zone 38. 1 and the cold zone 38. 2 are likewise separated from one another by a dividing wall, wherein the thread is passed through a thread through-opening 39. 1 between the two zones.

The inlet to the high-temperature chamber 34 is possible via a further Fadendurchlas opening 39.2. The thread from the high-temperature chamber 34 enters the treatment chamber 41 of the godet box 2 via a further yarn passage opening 39.3. For insulation, the high-temperature chamber 34 has insulation 42 in order to avoid heat losses and, on the other hand, to obtain the most stable ambient temperature possible within the high-temperature chamber 34. The thread inlet of the godet box 28 is associated with a thread inlet device 18, which is identical in construction and function to the embodiment of FIG. 1, so that no further explanation takes place at this point and reference is made to the above description. On a side facing the operation channel of the godet box 28, a control panel 19 of the godet module 16 is arranged. Again, the control panel 19 is located directly in the vicinity of the low-temperature chamber 35th

In the embodiment shown in FIG. 5, the drives of the godets 22 and 23 are arranged on a rear side of the support wall 17. The at the front of the support wall 17 held godet box 28 is closed by a door, not shown here, so that the cantilevered godet coats and handling equipment are kept completely isolated from the environment on the support wall 17.

Due to the user-friendly arrangement and compact design of the godet module 16, the device according to the invention is particularly easy to use, for example, to be able to remedy process interruptions as quickly as possible after failure. Furthermore, the isolated arrangement of the godets with high-temperature godet shells of the godets with low-temperature godet sheaths is particularly suitable to comply with the step required for the respective treatment temperature control of the threads. Thus, advantageously, the yarns of the group of yarns for a stretching and a subsequent relaxation treatment can be tempered differently, without any mutual influence.

Claims

claims

1. A device for removing and winding a yarn sheet (2) in a melt spinning process with a plurality of godets (22, 23), which are cantilevered on a support wall (17) of a godet module (16), and with a on winding machine (1.1) with several along a winding spindle (4, 5) distributed trained winding points (44) extending directly below the godet module (16) transversely to the godets (22, 23), characterized in that the godets (22) on the support wall with a high-temperature Galettenmantel (22.2, 22.3) and the godets (22) with a low tempered godet casing (22.1) are arranged isolated from each other.

2. Apparatus according to claim 1, characterized in that the high-temperature godet shells (22.2, 22.3) in a high-temperature chamber (34) held on the support wall (17) godet box (28) and the low-temperature godet shells (22.1) in a low-temperature chamber (35) the godet box (28) are arranged.

3. Apparatus according to claim 1 or 2, characterized in that the high-temperature chamber (34) and the low-temperature chamber (35) by at least one yarn passage opening (39.1, 39.2) are connected to each other.

4. Device according to one of claims 2 or 3, characterized in that the low-temperature chamber (35) within the godet box (28) in a hot zone (38.1) and a cold zone (38.2) is divided, wherein in the cold zone (38.2) at least one treatment device (26,27) is arranged.

5. Device according to one of claims 2 or 3, characterized in that the godet box (28) for receiving the heated godets (22) and cold godets (23) in addition to the high-temperature chamber (34) and the low-temperature chamber (35) has a treatment chamber (41 ) having.

6. Device according to one of claims 1 to 5, characterized in that the godet module (16) and the winding machine (1.1) to an operating side at least one control panel (19, 20.1) for manually controlling the godets (22, 23) and The on winding machine (1.1), which are operable out of an operating passage (37) out, and that the control panel (19) is arranged laterally next to the lower low-temperature chamber (35) of the godet box (28).

7. Apparatus according to claim 6, characterized in that in the vicinity of the control panel (19) for controlling the godets (22, 23) a yarn inlet device (18) on the godet module (16) is formed.

8. The device according to claim 7, characterized in that the thread inlet device (18) laterally next to the godet box (28) the service gear (37) is shown facing.

9. Apparatus according to claim 7 or 8, characterized in that the thread inlet device (18) at least one moving - has a multi-filament yarn guide (29), a cutting device (31) and a suction device (30).

10. Device according to one of claims 6 to 9, characterized in that the thread inlet device (18) on the support wall (17) of the godet module (16) is held and that the control panel (19) for controlling the godets (22, 23) is formed transversely to the support wall (17) on the godet module (16).

11. Device according to one of claims 1 to 10, characterized in that the godets (22, 23) of the godet module (16) are arranged two mirror-symmetrically arranged on winding machines (1.1, 1.2).