WO2015049313A1

WO2015049313A1 - Apparatus for drawing off and winding up a thread group

Info

Publication number: WO2015049313A1
Application number: PCT/EP2014/071085
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: DE102013016426A1

Abstract

An apparatus for drawing off and winding up a thread group in a melt-spinning process is described. The apparatus has a number of godets which are held in a projecting manner on a carrier wall of a godet module and which interact with a take-up winding machine having a number of winding stations formed in a manner distributed along a winding spindle. The godet module and the take-up winding machine each have a control panel towards an operating side in order to manually control the godet and the take-up winding machine, which are operable from an operating aisle. In order to make thread handling easier for an operator during piecing and threading in, according to the invention a thread inlet device is formed on the godet module in the vicinity of the control panel for controlling the godets.

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 well known that the filaments are spun after the melt and cooled for further treatment a galette system with multiple godets and treatment units are supplied. Such godet systems cooperate with winding machines in which the threads are wound up into coils after treatment. In order to simplify in particular the operability of the godet systems as well as the winding machines, devices have recently been developed in which an operation of the godets and an operation of the winding machine from an operating gear out without major aids is possible. For example, DE 10 2011 014 647 A1 discloses such a device for drawing off and winding up a group of threads. 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. This can be for example at a Process start or in a process interruption by a yarn break the application of the yarn sheet and the control of the godets and the winding machine advantageously run by an operator. In practice, it is common that the operator next to the control of the godets and the control of the winding machine, the threads of the yarn sheet by means of a manually guided suction gun at the beginning of the process and after a process interruption to the godets and the winding machine applies. In order to facilitate in particular the thread handling for the operator, it is therefore an object of the invention to improve the known device for removing and winding a yarn sheet to the effect that an operator can perform all operations without additional aids from an operating gear out.

This object is achieved in that in the vicinity of the control panel for controlling the godets a thread inlet device is formed on the godet module. 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 an interface between a spinning device and a godet system is formed by a yarn inlet device in which the threads are brought together at a treatment distance from each other. The yarn inlet device forms the collection point, in which the threads are fed in the event of a yarn breakage of a suction device. The thread inlet device ensures a continuous spinning process, so that the downstream godet system and the on winding machine can be controlled independently. In that regard, the interface between the spinning device and the godet system for the manual thread takeover and manual guidance of the threads is of great importance. The inventive arrangement of the thread inlet device on the godet module in the vicinity of the control panel, there is now the possibility that the operator can operate a manually operated suction gun to take over a group of threads in addition to a key operation on the control panel. This ensures very short downtimes, especially during process interruptions. Any downtime within a spinning process results in the extruded yarns being disposed of as yarn waste. In that regard, the optimization of the interruption times leads directly to a minimization of yarn waste in the spinning process.

The acquisition and the leadership of the yarn sheet by means of a manually guided suction gun can be further favored by the thread inlet device is held laterally next to the godets facing the service aisle.

In order to be able to continuously receive the group of yarns 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 and a suction device. Thus, by moving the yarn guide, the entire yarn sheet in a cutting device and a cooperating with the cutting device suction can be performed. This process is preferably triggered automatically by monitoring sensors, wherein the Operator has immediate access to the control panels of the godet module and on winder.

Since the threads drawn from a spinning device of a yarn sheet receive different deflections, we preferred the development of the invention, in which the yarn guide in the yarn path a deflection yarn guide is assigned by which the threads of the yarn sheet are unevenly deflected. This advantageously makes it possible to compensate for the different thread tensions produced by the deflection. In addition, substantially identical properties, such as the same static charges on the threads, can be produced on each of the threads of the yarn sheet by a total of the same deflection angle. The Auslenkfadenführer is preferably designed to be pivotable and can be adjusted manually between a landing position and an operating position. Thus, after threading the threads and after depositing the manually guided suction gun, the operator can guide the deflection thread guide into a deflection position required for operation by simply pivoting it.

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. To produce fully drawn threads, it is customary for the drawn threads to receive a thermal after-treatment, the so-called relaxation treatment. In order to enable a sufficient thermal treatment of the threads in the godets used for relaxation with usually higher peripheral speeds, the godets on the support wall with a high-temperature godet casing and the godets with a low-temperature godet casing are separated from one another according to a development of the invention. Thus, mutual influences of the tempering of the godets for drawing and relaxation of the godets can be avoided.

This is further improved by the high-temperature godet coats are arranged in an upper chamber of a godet box held on the support wall and the low-temperature godet coats in a lower chamber of the godet box. Thus, an additional insulation between the godets can be used to advantage in order to be able to carry out corresponding thermal treatment for the stretching and for the relaxation separately. The yarn inlet device is preferably arranged next to the lower chamber of the godet box, in which a relatively low temperature level prevails. Thus, the frequently performed manual operations can be carried out in a less heated environment.

Depending on the manufacturing process to be carried out, further treatment units can advantageously be attached directly to the support wall in the area of the godets. So be in a lower area the godet module preferably Vortexing devices and / or preparation devices held, which makes a swirling and / or wetting on the threads. 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 spindles can be limited despite a high number of threads.

The device according to the invention is basically to be integrated in every melt spinning process. Depending on the choice of the godets and the treatment units, any type of yarn such as POY, FDY, BSY or BCF yarns can be produced therewith.

Below, the device according to the invention will be explained in more detail with reference to some embodiments 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 is a schematic side view of the godet module of the embodiment of FIG. 2 Fig. 4 shows schematically a side view of another embodiment of a godet module

5 is a schematic front view of the embodiment of the godet module of FIG. 4

6 is a schematic plan view of a yarn inlet device of the embodiment of FIG .. 4

In FIGS. 1 to 3, a first embodiment of the device according to the invention for winding a plurality of threads is shown schematically. In Fig. 1, the embodiment is shown in a front view. Fig. 2 shows schematically a side view and in Fig. 3 is a detail of the side view of the embodiment shown enlarged. 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 has a godet module 16 and two winding machines 1.1 and 1.2 associated with the godet module 16. 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, the godets 22 and 23 of the godet system are held cantilevered, wherein the godet motors 25 are arranged on the rear side of the support wall 17. In that regard, the godet module 16 has a separation between the thread-guiding parts and the drives. The operation of the drives of the godets 22 and 23 via a control panel 19 which is arranged on an end face of the support wall 17. As can be seen in particular from the illustration in FIG. 3, 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 cutting device 31 and a suction device 30, which are arranged on the front side of the support wall 17. The thread inlet device 18 is for this purpose arranged laterally next to the godets 22 and 23 and immediately associated with an operating gear 37. The operating gear 37 runs parallel to the front ends of the godet module 16 and the winding machines 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.

As is apparent from the illustration in Fig. 3, the godet system 21 in this case, a plurality of heated godets 22 and a plurality of cold godets 23, which are arranged in a fixed arrangement to each other for guiding the threads as a group of threads with simple wrapping. In this exemplary embodiment, two heated godets each having a low-temperature godet casing 22.1 and 22.2 are used for the thermal treatment of the yarns prior to hiding. In order to enable the same thermal treatments on the threads after drawing at much higher yarn speeds, the downstream high-temperature godet shells 22.3, 22.4 and 22.5 are provided. Between the godets 22.2 and 22.3 thus a stretching zone is formed.

In the lower part of the godet module 16 are on the support wall 17 additional treatment units in the form of a preparation device 26 and a swirl device 27 is arranged. The Verwirbelung seinrichtung 27 is disposed between two cold godets 23, wherein a last cold godet 23 is assigned to the distribution of the threads the downstream winding positions of the winding machine 1.1 and 1.2.

It should be expressly mentioned at this point that the godet system 21 arranged on the godet module 16 is exemplary in terms of the number and arrangement of the godets. It is essential that the thread inlet device 18 is arranged directly in the vicinity of the control panel 19 and the operation gear 37 faces.

As can be seen from the illustrations in FIGS. 1 and 2, the winding machines 1.1 and 1.2 likewise each have a control panel 20.1 and 20.2, which are held on the end faces of the winding machines 1.1 and 1.2. The control panel 20.1 and 20.2 of the winding machines 1.1 and 1.2 have all the necessary control buttons to control the drives and actuators of the winding machines.

The winding machines 1.1 and 1.2 are identically designed in their structure and face each other in mirror symmetry. In that regard, the structure of the winding machines 1.1 and 1.2 is explained only at one of the winding machines 1.1. The winding machine 1.1 has a winding turret 3. The winding turret 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 spindle 4 and 5 are alternately pivoted by the winding turret 3 for continuous winding of the threads from an operating region into a change region or vice versa. 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 replaced by empty tubes 12.

In the operating range, the winding spindles 4 and 5 are associated with a pressure roller, which rests against the surface of the coil 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 stations 44, so that the yarn sheet 2.1 comprises four individual threads each. The number of winding stations 44 per winder 1.1 and 1.2, which determines the number of threads per yarn sheet, is exemplary. In principle, a plurality of winding stations 44 can also be formed parallel to one another on a winding spindle 4 and 5. Thus, 10, 12 or even more threads can be wound in parallel by means of a winding spindle to coils.

To be able to wind the threads in cross-wound bobbins, the winder on 1.1 a traversing device 14 which the Pressure roller 9 is arranged upstream. For each thread, the traversing device 14 each thread guide means to the threads within the winding point back and forth to lead. 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 the godet motors 25. The control panels 19, 20.1 and 20.2 are therefore preferably coupled directly to the control device 17.

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.

In Figs. 1 to 3, the embodiment of the device according to the invention is shown in an operating situation in which the godet system 21 deducts a group of yarns 2 from a spinning device. The threads are guided on the godet module 16 via the thread inlet device 18 and fed to the downstream godets 22 and 23. In the event that during operation at one of the winding points a faulty change or a broken yarn, 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 in the cutting device 31 and the suction device 30. After the thread remnants have been removed, the group of threads is taken over by means of a manually guided suction gun from the thread inlet device 18 and guided by an operator for application to the godets and the winding points of the Auspulmaschinen. At the same time control buttons on the control panels 19, 20.1 and 20.2 are operated by the operator. Here, the control panel 19 on the godet module also perform control functions of the winding machines 1.1 and 1.2. Alternatively, however, the drives of the winding machines could also be controlled exclusively by the control panels 20.1 and 20.2. The device according to the invention for drawing off and winding up a group of yarns is thus particularly user-friendly in order to be able to remedy the process interruptions as quickly as possible after disturbances.

FIGS. 4 and 5 show an exemplary embodiment of a godet module 16 that could be used in the device shown in FIGS. 1 and 2. Fig. 4 shows schematically a front view and Fig. 5 schematically shows a side view of the embodiment. The following description applies insofar for both figures. The embodiment of FIGS. 4 and 5 has a godet system 21, which also has a plurality of cold godets 23 and heated godets 22. Here, the godets are partially disposed within a godet box 28. The godet box 28 has an upper chamber 34 and a lower chamber. Re chamber 35, which are formed on the front side of the support wall 17. In the upper chamber 34, the high-temperature godet shells 22.2, 22.3 and 22.4 of the heated godets 22 are arranged. The lower chamber 35 is divided into a heat zone 38.1 and a cold zone 38.2. In the heat zone 38.1, a low-temperature godet casing 22.1 of another heated godet 22 is arranged. For thread guidance, the godet box 28 has a plurality of thread openings 36.1 and 36.2 and a plurality of thread passages 39.1 and 39.2. The thread opening 36.1 forms a thread inlet and the thread opening 36.2 a thread outlet. The thread inlet 36.1 is formed on the lower chamber 35, which has a substantially lower temperature level in relation to the upper chamber 34. Temporarily to the lower chamber 35, 28 other cold godets 23 are provided outside of the godet box to receive the prepared by the thread inlet device 18 yarn sheet 2 and feed into the godet 21.

In the godet system shown in FIG. 5, the draw zone is formed between the godet casing 22.1 and the godet casing 22.2. The following godet shells 22.3 and 22.4 thus form an aftertreatment zone, at which the yarn sheet is guided on high-temperature godet sheaths.

As can be seen in particular from the illustration in FIG. 5, the additional treatment units 26 and 27 are arranged in the cold zone 38. 2 of the lower chamber 35.

As can be seen in particular from the illustration in FIG. 4, the godet box 28 is closed by a pivotable door 40. On the side facing the operating passage of the godet module 16, the control panel 19 is arranged transversely to the support wall 17. In the vicinity of the control panel 19, the thread inlet device 18 is arranged.

In this embodiment, the thread inlet device 18 in addition to the multi-thread guide on an additional Auslenkfadenführer 32. To explain the function of the deflection thread guide 32, reference is made to FIG. 6 in addition to FIG. In Fig. 6 is a plan view of the yarn guide 29 and 32 is shown. The yarn guide 29 has a plurality of U-shaped guide grooves 41 on a support plate 42. The guide grooves 41 are formed side by side on a straight edge of the support plate 42. The carrier plate 42 is coupled to a linear drive (not shown here), which keeps the carrier plate 42 displaceable transversely to the thread running direction.

The downstream in the yarn path Auslenkfadenführer 32 also has a plurality of guide grooves 41, which are formed on a second support plate 43. The support plate 43 has an arcuate outer contour, on which the guide grooves 41 are formed side by side. The guide grooves 41 of the arcuate support plate 43 are oppositely directed to the guide grooves 41 of the upper support plate 42 is formed, wherein between the guide grooves an offset is provided so that on the threads of the yarn sheet uneven deflections is adjustable. In particular, the yarns guided in the interior of the yarn sheet are deflected more strongly than the yarns guided in the edge region of the yarn sheet. As a result of this measure, the different deflections on the filaments resulting from the spinning device can be advantageously achieved in this way. pensieren that each of the threads of the yarn sheet has the same properties.

The arcuate support plate 43 of the deflection thread guide 32 is held on a pivot axis 33, which allows an adjustment of the support plate 43 between an operating position and a landing position. In the landing position of the deflection thread guide 32, the threads can be guided in a straight thread run on the thread guide 29. As is apparent from the illustration in Fig. 5, the yarn guide 29 in this case, a cutting device 31 and a suction device 30 are also assigned.

The function of the yarn inlet device 18 and godet system 21 shown in FIGS. 4 and 5 is identical to the aforementioned embodiment, so that no further explanation takes place at this point.

Reference sign list

1.1, 1.2 Winder

2, 2.1, 2.2 group of threads

3 spool turrets

4 first winding spindle

5 second winding spindle

6 turret drive

7 spindle drive

8 spindle drive second winding spindle

9 pressure roller

10 roller carriers

11 coil

12 empty tubes

13 machine frame

14 traversing device

15 head thread guides

16 godet module

17 support wall

18 thread inlet device

19 Control panel godet module

20.1, 20.2 Control panel On winding machine

21 godet system

22 heated galette

22.1, 22.2 low temperature godet shells

22.3, 22.4, 22.5 high tempered godet coats

23 cold godets

24 support frame 25 godet motors

26 Preparation device 27 Swirling device 28 Galette box

29 multifilament yarn guide 30 from suction device 31 cutting device 32 Auslenkfadenführer 33 pivot axis

34 upper chamber

35 lower chamber

36.1, 36.2 Thread openings

37 operation

38.1 heat zone

38.2 cold zone

39.1, 39.2 thread passage

40 door

41 guide groove

42 carrier plate

43 arcuate support plate

44 winding positions

Claims

Patent claims

Device for pulling off and winding up a group of threads (2) in a melt spinning process with several godets (22, 23), which are held cantilevered on a support wall (17) of a godet module (16), and with a winding machine (1.1) with several along one Winding spindle (4, 5) distributed winding points (44), which extend directly below the godet module (16) transversely to the godets (22, 23), with the godet module (16) and the winding machine (1.1) on one operating side at least one control panel (19, 20.1) for manual control of the godets (22, 23) and the winding machine (1.1), which can be operated from an operating aisle (37), characterized in that in the vicinity of the control panel (19 ) for controlling the godets (22, 23), a thread inlet device (18) is formed on the godet module (16).

Device according to claim 1, characterized in that the thread inlet device (18) is held laterally next to the godets (22, 23) facing the operating aisle (37).

Device according to claim 1 or 2, characterized in that the thread inlet device (18) has at least one movable multi-thread thread guide (29), a cutting device (31) and a suction device (30).

4. Device according to claim 3, characterized in that the thread guide (29) in the thread path is assigned a deflection thread guide (32), through which the threads of the thread group (2) can be deflected unevenly.

5. Device according to claim 4, characterized in that the deflection thread guide (32) is designed to be pivotable and can be manually adjusted between a contact position and an operating position.

6. Device according to one of claims 1 to 5, characterized in that the thread inlet device (18) is held on the support wall (17) of the godet module (16) 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).

7. Device according to one of claims 1 to 6, characterized in that the godets (22) are arranged separately from one another on the support wall with a high-temperature godet jacket (22.2, 22.3) and the godets (22) with a low-temperature godet jacket (22.1). are.

8. The device according to claim 7, characterized in that the high-temperature godet jackets (22.2, 22.3) in an upper chamber (34) of a godet box (28) held on the support wall (17) and the low-temperature godet jackets (22.1) in a lower chamber ( 35) of the godet box (28). are ordered.

. Device according to claim 8, characterized in that the thread inlet device (18) is arranged laterally next to the lower chamber (35) of the godet box (28).

0. Device according to one of claims 1 to 9, characterized in that a swirling device (27) and / or a preparation device (26) is held on the support wall (17) in a lower region of the godet module (16).

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