WO2005077801A1

WO2005077801A1 - Device for winding up several bunches of threads

Info

Publication number: WO2005077801A1
Application number: PCT/EP2005/001151
Authority: WO
Inventors: Roland Kampmann; Jürgen GSELL; Michael SCHRÖTER; Klaus Mayer
Original assignee: Saurer Gmbh & Co. Kg
Priority date: 2004-02-11
Filing date: 2005-02-04
Publication date: 2005-08-25
Also published as: EP1723064A1; EP1723064B1; CN1918058A; CN100513282C; KR101286860B1; KR20060132699A; JP2007522056A; DE502005001108D1

Abstract

The invention relates to a device for winding up several bunches of threads with two winding machines that are disposed next to each other in a mirror-inverted manner. Each of said winding machines comprises several mechanical and electrical subunits for winding a bunch of threads onto several bobbins, the winding machines being embodied so as to be separately driven and controlled. In order to obtain a high degree of integration of the winding machines in spite of a separate mode of operation, the winding machines are configured differently regarding the structure and arrangement of the subunits thereof regardless of the mirror symmetry while the function of the subunits in the respective winding machines remains unchanged.

Description

Device for winding several sets of threads

The invention relates to a device for winding up a plurality of thread sheets with two winding machines arranged in mirror image next to one another according to the preamble of claim 1.

In the production of synthetic threads, there is an increasing tendency to observe that a large number of threads are spun in parallel from one another in a spinning position from a polymer melt and then wound up into bobbins. It is known, for example, to spin ten, twelve, sixteen or more threads in parallel and simultaneously wind them into bobbins. The threads can be wound up by winding machines in which the bobbins are held and wound on a winding spindle. With larger bobbin widths and a high number of threads, such winding machines require correspondingly long winding spindles. Therefore, new concepts have been developed in which the large number of threads is divided into several sets of threads and the bobbins of one set of threads are wound up in parallel by a first winding spindle and the spools of the other set of threads are wound up in parallel by a second winding spindle.

Devices are known from DE 100 45 473 AI and from JP 2000-177927 A in which two winding machines are arranged side by side in mirror image. A thread sheet is fed to each of the winding machines in order to wind the threads of the thread sheet into bobbins. For this purpose, the winding machines are arranged side by side parallel to the long sides of the device and form a plane of mirror symmetry between them. The winding machines are mirror-symmetrically identical in construction and arrangement to their mechanical and electrical assemblies. Both winding machines can be operated independently of each other. Due to the mirror symmetry within the known devices, two types of winding machines must therefore always be provided, each of which has the same size require wall. For example, each of the winding machines has mechanical and electrical assemblies that contain the same fastenings and housing encapsulations. However, devices from WO 03/068648 AI are known for winding up a plurality of thread sheets, in which the assemblies of two winding machines are combined to form one machine. Here, the modules can only be operated together and cannot be separated, for example to wind up only one of the thread groups. Furthermore, such devices are disadvantageous because of their size and weight, since in many spinning systems regular maintenance has to be carried out on the individual winding machines and the winding machines have to be changed out of the spinning position for this purpose.

It is an object of the invention to develop a device of the generic type with two winding machines arranged in mirror image next to one another in such a way that an integration of the assemblies which reduces the manufacturing effort of the device is possible despite the separate mode of operation of the winding machine.

This object is achieved according to the invention in that the winding machines are constructed differently in the structure and arrangement of their assemblies, regardless of the mirror symmetry, the functions of the assemblies being retained in the respective winding machines.

Advantageous developments of the invention are given by the features and combinations of features of the subclaims.

The invention takes a completely new way to operate two winding machines in one device. The two winding machines are therefore no longer uniform in their assemblies. For example, assemblies can stored or combined, but without changing the functions of the winding machines. So both winding machines can still be driven and controlled separately. The particular advantage of the invention lies in a newly created freedom of design, which contains considerable potential for saving costs and optimizing functional processes. The device according to the invention also enables a very compact construction of the winding machines, so that it is particularly suitable for winding up a plurality of thread groups in one spinning position. According to a particularly preferred development of the invention, at least one assembly assigned to one of the winding machines is assigned to the other winding machine. For example, a basic version of one of the winding machines can be designed, which essentially contains the assemblies required to wind up the thread sheets. The winding machine on the opposite side contains the basic version of all other additional modules that enable the complete function of both winding machines.

The development in which the electrical assemblies such as the drive electronics and the control devices are combined on one of the winding machine is particularly advantageous. In this way, all sensitive components can be encapsulated together to keep environmental influences out of a spinning system and to avoid malfunctions.

However, mechanical assemblies, in particular a thread application device, can also be combined in such a way that they can be held on one of the machine frames by means of common fastening means.

Since the mechanical assemblies, in particular the winding spindles used on the winding machines, are subject to certain maintenance cycles, this is a regular one

Exchange of the winding machines provided. It is particularly advantageous here that the machine frame is formed from two releasably connected frame parts. This means that the winding machines can be replaced independently of one another and combined with any other winding machines. This makes handling the exchange of the winding machine considerably easier.

It is particularly advantageous here if the central control unit is detachably connected to the winding machines. In this way, the electrical assemblies and the mechanical assemblies of the winding machines can be combined to form interchangeable units.

The device according to the invention is described in more detail below on the basis of a few exemplary embodiments with reference to the attached figures.

They represent:

1 to

5 schematically shows several views of a first exemplary embodiment of a device according to the invention

Fig. 6 schematically shows a view of another embodiment of the device according to the invention

In Figures 1 to 5, a first embodiment of the device according to the invention is shown schematically in different views. 1 shows a front view, FIG. 2 shows a cross-sectional view of one of the winding machines, FIG. 3 shows a cross-sectional view of the other winding machine, FIG. 4 shows a top view of the device and FIG. 5 shows the front view of the device at the start of the process. Insofar as no express reference is made to one of the figures, the following description applies to all figures. .

The device has two winding machines, which is shown in FIG. 1 on the right longitudinal side of the winding machine as right winder 1 and the winding machine arranged in mirror image on the left longitudinal side of the device as left winding 2. The right-hand winder 1 is arranged in a machine frame part 6.1 and the left-hand winder 2 in a machine frame part 6.2. The machine frame parts 6.1 and 6.2 are detachably connected to one another by several connecting means 7.

The left-hand winder 2, which is shown in a side view in FIG. 3, has a plurality of mechanical assemblies, which are explained in more detail below. A winding turret 3.2 is rotatably supported on the machine frame 6.2. The coil turret 3.2 is coupled to the rotary drive 23.2. Two long projecting spindles 4.2 and 5.2 are rotatably mounted on the turret 3.2 of the left-hand winder 2. The first winding spindle 4.2 is coupled to a spindle drive 21.2 and is located in a winding area in the operating situation shown. A plurality of sleeves 8 are tensioned on their circumference, on which a plurality of threads 20.1 of a first thread group 20 are wound into coils 9. The second winding spindle 5.2 is held at 180 ° to the first winding spindle 4.2 on the winding turret 3.2 and is located in an alternating area. The second winding spindle 5.2 has a plurality of sleeves 8 on its circumference.

In the thread run, the spindles 4.2 and 5.2 of the left-hand winder 2 are preceded by a pressure roller 11.2 and a traversing device 13.2. The pressure roller 11.2 extends essentially over the entire length of the winding spindles 4.2 and 5.2 and is rotatably held at its ends on a roller rocker 12.2. The roller rocker 12.2 is pivotally attached to the machine frame part 6.2. The traversing device 13.2 has a laying unit for each winding unit, by means of which the respective thread in the winding unit is moved back and forth within a traversing stroke. In this exemplary embodiment, the traversing device 13.2 is designed as a wing traverse, as is known, for example, from EP 0 771 302. In this respect, reference is made to the further description of such a traversing device in this document.

The assemblies described above represent a basic version of one of the winding machines - in this case the left-hand winder 2. In contrast, the right-hand winder 1 contains the same assemblies and additional assemblies which act on both the right-hand winder 1 and the left-hand winder 2. The construction of the right-hand winder 1 is essentially identical to the construction of the left-hand winder 2. Here, the individual assemblies of the left-hand winder 2 are attached to the machine frame 6.2 in mirror image of the assemblies of the right-hand winder 1. To explain the basic version of right-hand winder 1, reference is thus made to the previous description of left-hand winder 2 and only the additional modules are described below

On the upper side of the machine frame part 6.1 of the right-hand winder 1, which is shown in a side view in FIG. 2, the electrical assemblies are arranged in the form of a control device 14 and a drive electronics 28. The control device 14 and the drive electronics 28 are with the rotary drive 23.1, the spindle drives 21.1 and 22.1 and the drives and actuators of the right-hand winder 1 (not shown further here) as well as with the rotary drive 23.2, the spindle drives 21.2 and 22.2 and the drives not shown here and actuators of the left-hand winder 2 connected. The control device 14 and the drive electronics 28 thus represent a central control unit for both winding machines.

On the top of the right-hand winder 1 there is a further mechanical assembly for guiding the thread groups 19 and 20 when entering the winding machines 1 and 2 provided. For this purpose, a thread guide bar 16 is arranged on a carrier 15. The thread guide bar 16 has a first group of thread guides 17 and a second group of thread guides 18 on a spindle parallel to the winding spindles of the right-hand winder 1 and the left-hand winder 2. The first group of thread guides 17 are formed by a total of 4 thread guides 17.1 to 17.4 which hold the threads 19.1 to 19.4 are assigned to the first set of threads 19. The thread guides 17.1 to 17.4 each precede the traversing device 13.1 of the right-hand winder 1 and form the thread inlet to the individual winding stations and thus the end of the respective traversing triangle.

The second group of thread guides 18 is formed by the thread guides 18.1 to 18.4, which are assigned to the threads 20.1 to 20.4 of the second thread family. For this purpose, the thread guides 18.1 to 18.4 are held on the thread guide bar 16 in a projecting manner, so that the thread guides 18.1 to 18.4 are held in a second thread running plane for guiding the second thread sheet 20. The thread guides 18.1 to 18.4 form the thread inlet to the winding stations of the left-hand winder 2 and are arranged upstream of the traversing device 13.2. The thread guides 18.1 to 18.4 thus represent the beginning of the respective traversing triangle of a winding unit.

As can be seen from FIG. 4, the first group of thread guides 17 and the second group of thread guides 18 are movably held on the thread guide bar 16. For this purpose, the thread guides of both groups assigned to the opposite winding positions of the right winder 1 and the left winder 2 are each arranged on a sliding block 24. The thread guides 17.1 and 18.1 are fastened to the sliding block 24.1, the thread guides 17.2 and 18.2 to the sliding block 24.2 and so on. The sliding blocks 24 are arranged in a linear guide 25 and can be moved back and forth in the linear guide by a linear drive 26. The sliding shoes 24.1 to 24.4 could be coupled to one another, for example, by means of a cable pull. The linear drive 26 can be controlled via a control unit 27, which is integrated in the control device 14. By activating the linear drive 26, the groups of thread guides 17 and 18 can be positioned between a feed position, a catch position and an operating position. The feed position of the groups of thread guides 17 and 18 is selected if it is necessary to apply the threads at the start of the process or after a thread break. The catch position is selected if the threads are to be caught in the catch slots of the tubes at the start of a winding.

In order to apply the threads of the thread groups 19 and 20 to the sleeves 8 of the winding spindles 4.1 and 4.2 of the two winding machines, a further assembly in the form of an application device 29 is arranged on the right-hand winder 1. The application device 29 is shown in FIGS. 1, 2 and 3 in a rest position and in FIG. 5 in an operating position for applying the thread groups.

For the first application of the thread groups 19 and 20, the right winder 1 is assigned a thread application arm 31.1 and the left winder 2 a thread application arm 31.2 of the application device 29. The thread feed arms 31.1 and 31.2 are pivotally held on the machine frame part 6.1 of the right-hand winder 1. For this purpose, the thread feed arms 31.1 and 31.2 are arranged together with one end on a pivot axis 35. At the opposite end of the thread application arms 31.1 and 31.2, thread guide elements are provided in order to deflect the thread family 19 and the thread family 20 independently of one another. The pivot axis 35 is fastened to a holder 30 which is attached to the machine frame part 6.1 of the right-hand winder 1. The thread feed arms 31.1 and 31.2 are connected to a common linear actuator 32. The thrust drive 32 is connected to the thread feed arm 31.1 via a first thrust link 33.1 and to the second thread feed arm 31.2 via a second thrust link 33.2. The thrust drive 32 is coupled to the control unit 14 to control the application device 29. The thread feed arms 31.1 and 31.2 of the feed device 29 can be guided synchronously from a rest position into an operating position. The operating position of the thread feed arms 31.1 and 31.2 is shown in FIG. 5. In this situation, the threads of the thread sheet 19 are fed to the sleeves 8 and the winding spindle 4.1 during the first application. Below the thread guide bar 16, the right Winder 1 is assigned a thread lifter 34.1 and the left-hand winder 2 is a thread lifter 34.2, through which entry into the. Traversing device 13.1 and 13.2 prevented and positioning is carried out in the respective winding stations.

As soon as the thread coulters in the respective sleeves 8 of the winding spindles 4.1 and 5.1 have been taken over, the winding of the threads begins and the thread feed arms 31.1 and 31.2 are reset to their rest positions. The mode of operation of the individual winding machines is known and is disclosed, for example, in EP 0 374 536 AI. In this respect, reference is expressly made here to explain the function to the cited publication. Each roller rocker 12.1 and 12.2 is assigned a stroke sensor 36.1 and 36.2, respectively. The stroke sensor 36.1 of the right winder 1 and the stroke sensor 36.2 of the left winder 2 are connected to the control device 14. Within the control devices 14, the sensor signals are converted into control signals in order to use the drive electronics 28 to turn the rotary drives 23.1 of the coil turret 3.1 and

23.2 to control the turret 3.2 in each case such that the pressure rollers 11.1 and 11.2 essentially maintain a predetermined position while the spools 9 are being wound up.

The clock revolvers 3.1 and 3.2 are clocked in opposite directions, so that the evasive movement of the constantly increasing coil is carried out by the right-hand winder 1 by rotating the reel turret 3.1 clockwise and in the left-hand winder 2 by rotating the reel turret 3.2 counterclockwise. A minimal distance between the right-hand winder 1 and the left-hand winder 2 can thus be carried out. The coil turrets 3.1 and 3.2 are arranged at a distance from one another which is smaller than twice the diameter of a completely wound coil, preferably smaller than a simple diameter of a completely wound coil. 6 shows a further exemplary embodiment of the device according to the invention in a side view. 6 is identical in construction and arrangement of the mechanical assemblies of the winding machines to the previous embodiment, so that reference is made to the description of FIGS. 1 to 5 and only the differences are explained below.

In the exemplary embodiment shown in FIG. 6, electrical assemblies of the winding machine 1 and 2 are brought together to form a central control unit 36. The central control unit 36 is held on the drive side of the winding machines 1 and 2 separately on a frame part 6.3 of the machine frame. The central control unit 36 is coupled to the right-hand winder 1 via a plug connection 37.1 and to the left-hand winder 2 via a plug connection 37.2. The plug connections 37.1 and 37.2 produce all supply, control and signal lines between the drives, actuators and sensors of the winding machines 1 and 2. The frame parts 6.1, 6.2 and 6.3 are each detachably coupled to one another, so that an exchange of the winding machines 1 and 2 is possible independently of the central control unit 36. The frame parts 6.1 and 6.2 could be connected to the frame part 6.3 by simple plug-in means, as indicated by dashed lines.

The exemplary embodiments of the device shown in FIGS. 1 to 6 are exemplary in their structures and arrangements of the assembly. In principle, the right-hand winder and the left-hand winder can be combined within the device in such a way that, for example, the winding turrets are driven and controlled together by a common drive. The modules shown are also examples. The assemblies can also be designed in such a way that the thread groups are also caught according to the so-called synchronous principle. Here, the thread deflection and thread guide through the Assemblies made such that when the threads are first put on and caught, the thread running direction and the direction of rotation of the sleeves are aligned.

LIST OF REFERENCE NUMBERS

1 right-hand winder 2 left-hand winder 3.1, 3.2 winding turret 4.1, 4.2 first winding spindle 5.1, 5.2 second winding spindle 6.1, 6.2, 6.3 machine frame part 7 connecting element 8 sleeve 9 spool 10 catch slot 11.1, 11.2 pressure roller 12.1, 12.2 roller rocker 13.1, 13.2 traversing device 14.1, 14.2 control device 15 carrier

16 thread guide bar

17 first group of thread guides

17.1 Thread guide

17.2 Thread guide

17.3 Thread guide

17.4 Thread guide

18 second group of thread guides

18.1 Thread guide

18.2 Thread guide

18.3 Thread guide

18.4 Thread guide

19 first thread group

19.1, 19.2 ... thread

20 second thread group 20.1.20.2 ... thread

21.1,21.2 spindle drive

22.1,22.2 spindle drive

23.1,23.2 rotary drive 24, (24.1-24.2) sliding block

25 linear guide

26 linear drive

27 control unit

28 Drive electronics 29 Application device

30 holders

31.1,32.2 guide arm

32 linear actuator

33.1,33.2 thrust link 34.1,34.2 thread lifter

35 swivel axis

36 Control unit 37.1,37.2 plug connection

Claims

claims

1.Device for winding up a plurality of thread sheets (19, 20) with two winding machines (1, 2) arranged in mirror image next to one another, which winding machines (1, 2) each have a plurality of mechanical and electrical assemblies for winding up one of the thread sheets (19, 20) into a plurality of bobbins (9), the winding machines (1, 2) being separately drivable and controllable, characterized in that the winding machines (1, 2) are independent of the mirror symmetry in the construction and arrangement of their assemblies (14, 28, 29) are designed differently, the functions of the assemblies (14, 28, 29) in the respective winding machines (1, 2) being retained.

2. Device according to claim 1, characterized in that at least one of the assemblies (14) assigned to one of the winding machines (2) is assigned to the opposite winding machine (1).

3. Device according to claim 2, characterized in that one of the mechanical assembly is formed by an application device (29) and that the application devices (29) of both winding machines (1, 2) are fastened together to the machine frame (6.1) of one of the winding machines (1) are.

4. The device according to claim 3, characterized in that the electrical assembly (27) assigned to the application devices (29) is integrated in the winding machine (1) which carries the application devices (29).

5. Device according to one of the preceding claims, characterized in that the drive electronics (28) and the control devices (14) of all electrical assemblies are combined to form a control unit (36) and that the control unit (36) is assigned to one of the winding machines (1, 2) is.

6. Device according to one of the preceding claims, characterized in that the winding machines (1, 2) are individually and interchangeably held in the machine frame (6.1, 6.2).

7. The device according to claim 6, characterized in that the machine frame is formed from several frame parts (6.1, 6.2) and that each winding machine (1, 2) is assigned one of the frame parts (6.1, 6.2), the frame parts (6.1, 6.2 ) of the winding machines (1, 2) are releasably connected to each other.

Device according to claim 6 or 7, characterized in that the central control unit (36) is detachably connected to the winding machines (1, 2).

9. Device according to one of the preceding claims, characterized in that the mechanical assemblies (29) and the electrical assemblies (14, 28) of the two winding machines (1, 2) are coupled such that the winding machines (1, 2) as a machine for synchronous winding of a plurality of thread sheets can be operated.