Title of Invention

A TAKE-UP WINDING DEVICE

Abstract

The invention relates to a take-up winding device comprising two spindle supports (10.1, 10.2) that are arranged horizontally next to one another. At least one projecting winding spindle (7.1, 7.2) is rotatably mounted on each of the spindle supports, to receive respective winding cores (8). which are used to simultaneously wind thread (1.1, 1.2) to form bobbins (9). The winding spindles are driven in opposite directions by associated spindle drives (23, 37). a common thread supply (2.1, 2.2) being configured between the winding spindles. The aim of the invention is to obtain bobbins with an identical lap using an identical thread supply, despite the opposing rotational directions of the winding spindles. To achieve this, said winding spindles comprise a respective contact surface (17.l. 17.2) for the end of the winding cores. said surfaces being situated on two neighbouring stop planes, which are interspaced at an interval (A). This permits the bobbins to have a mirror-symmetrical lap on both winding spindles, despite the asymmetrical positioning of the bobbins on the winding cores.

Full Text

Take-up winding device The invention relates to a take-up winding device comprising two spindle supports which are arranged beside each other, on which in each case at least one projecting rotatably mounted winding spindle is arranged to hold a winding core for the simultaneous winding of threads to form bobbins, according to the preamble of claim 1. A generic device is disclosed by WO 03/068648 Al. In the known device, a plurality of threads is wound up simultaneously on two winding spindles arranged beside each other to form bobbins. To this end, the winding spindles are rotatably arranged in a proj ecting manner on a spindle support in each case. The winding spindles are driven in opposite directions by associated spindle drives. Arranged between the winding spindles are a thread supply and an oscillating means. The threads are each wound in opposite directions of rotation on the winding spindles to form bobbins. In order to hold the bobbins, winding cores are clamped onto the winding spindles. Winding cores of this type have a catching slot in an end region, by means of which, at the start of winding, a thread can be caught and wound initially. During the initial winding of the threads, first of all what is known as a thread reserve is laid down in the region of the catching slot, being used for the purpose of connecting the end of the thread to a thread start of a further bobbin in a further processing process. Now, in order to be able to produce bobbins with the same winding direction on both winding spindles, the winding cores have to be held on the winding spindles with a different orientation, so that the thread reserve on a winding spindle is wound on the side facing toward the bearing end of the winding spindle, and on the other winding spindle is wound on the side of the bobbin facing toward the free end of the winding spindle. Thus, an offset is produced between the bobbins of the two winding spindles, which results in a different thread supply. In particular during the use of oscillating means, in which the oscillating thread guides assigned to the winding spindles are driven simultaneously by a drive means, the problem occurs that the oscillating strokes are formed differently because of the bobbin offset in relation to each winding spindle. Therefore, additional thread guides and aides have to be used in order to produce the same bobbin make-ups on the two winding spindles. It is, then, an object of the invention to develop a take-up winding device of the generic type in such a way that, with a mirror-symmetrical arrangement of the guide elements, bobbins can be wound in a simple manner with the same winding direction. According to the invention, this object is achieved by a take-up winding device having the features as claimed in claim 1. Advantageous developments of the invention are defined by the features and feature combinations of the subclaims. The invention is based on the fact that, because of the thread reserves laid down on one side, the bobbins on the cores are held asymmetrically, that is to say in the axial direction there is a bobbin offset between the center of the bobbin and the center of the core, so that the orientation of the thread reserves reserves on the winding spindles determines the position of the bobbins on the winding spindles. The take-up winding device according tc the invention now departs from the idea of the same core clampings on the winding spindles. To this end, on the bearing end of the winding spindles in each case, a contact surface for one end of the winding core is provided, being arranged in two adj acent stop planes. Formed between the stop planes is a space, so that the winding cores can be held in different axial positions relative to the winding spindles. In this case, it does not matter whether the take-up winding device has only one winding point or a plurality of winding points in each case on each of the winding spindles. In the event of forming a plurality of winding points, the winding cores are pushed onto the winding spindles one after another as a winding column, so that in each case the contact surface at the bearing end of the winding spindle determines the relative positions of the cores on the winding spindles. In order to obtain identical thread supplies in the thread supply, in particular in the oscillating means, the development of the invention is preferably used, in which the space between the stop planes is dimensioned in such a way that, when identical winding cores are used, the bobbins wound on the winding cores of the two winding spindles have their bobbin ends opposite each other. The result is therefore a mirror-symmetrical arrangement of the bobbins on the spindle supports, so that the centers of the bobbins form a common supply plane for the threads. The contact surfaces at the bearing end of the winding spindles can advantageously be formed by two stop means which are formed on or fixed differently to the winding spindles. Separate ring elements or integrally molded spindle collars would be possible as the stop means. Particularly advantageous is the development of rhe invention in which the contact surfaces are formed directly by the bearing ends of the winding spindles, the spindle supports being held on a machine frame so as to be offset: in relation to one another by the space between the stop planes. Therefore, identically constructed winding spindles and spindle supports can be used. The relative positions of the winding cores in relation to the thread supply are determined by the offset of the spindle supports on the machine frame. In order to be able to wind up the threads as continuously as possible, the spindle supports are preferably formed by two rotatably mounted spindle turrets, which in each case carry two winding spindles. The winding spindles assigned to one of the winding turrets in this case have the same contact surfaces in one of the stop planes. In the take-up winding device according to the invention, the spindle drives can be formed both by the friction rolls assigned to the spindle supports or by directly driven winding spindles with associated electric motors. In the case of directly driven winding spindles, the threads are preferably laid down by a pressing roll resting on the circumference of the bobbins. Pressing rolls of this type are used simultaneously to regulate the spindle drives, the preferred development of the take-up winding device according to the invention in which the pressing rolls are connected to each other by a transmission means in such a way that the two pressing rolls revolve in opposite directions at the same rotational speed permits regulation in which the rotational speed of only one of the pressing rolls is sensed. In order to influence the thread tension as the threads are laid down on the bobbins, the pressing rolls are preferably additionally driven by an external drive. In order to carry out a deviating movement as the bobbin grows during the winding of the threads, the pressing rolls are preferably rigidly connected to a holder which is held on the machine frame by means of a carriage and a carriage guide such that it can move, and by means of which the pressing rolls execute a deviating movement in the radial direction radially with respect to the winding spindles. A deviating movement of this type can also advantageously be carried out in the case of friction-driven winding spindles. In this case, the friction rolls are arranged on the holder instead of the pressing rolls. The thread supply formed between the winding spindles permits the use of an oscillating means by means of which the incoming threads are guided to and fro before running onto the bobbins. Thus, only one oscillating drive is needed in order to oscillate the threads at the opposite winding points. However, it is also possible to use two separate oscillating means, which are driven by two separate drives. The take-up winding device according to the invention will be explained in more detail below by using a few exemplary embodiments and with reference to the appended figures, in which: fig. 1 to fig. 3 show, schematically, a number of reviews of a first exemplary embodiment of the take-up winding device according to the invention, fig- 4 and fig. 5 show, schematically, a number of drive concepts of the exemplary embodiment from fig. 1, fig. 6 and fig. 7 show, schematically, a number of views of a further exemplary embodiment of the take-up winding device according to the invention. In figures 1, 2 and 3, a first exemplary embodiment of the take-up winding device according to the invention is illustrated in a number of views. Here, fig. 1 shows a front view, fig. 2 shows a side view of the exemplary embodiment and fig. 3 shows a plan view of the winding spindles of the exemplary embodiment. To the extent that no reference to one of the figures is made, the following description applies to all the figures. The exemplary embodiment of the take-up winding device according to the invention comprises two winding points 29.1 and 29.2, which are formed beside each other in a machine frame 12. In this case, the winding points 29.1 and 29.2 are arranged in mirror-image fashion in relation to a central plane of symmetry. Thus, the right-hand winding point 29.1 comprises a spindle support 10.1 rotatably mounted in the machine frame 12. Held on the spindle support 10.1 are a first projecting winding spindle 7.1 and, offset by 180°, a second projecting winding spindle 11.1. In the operating situation illustrated, the first winding spindle 7.1 is in an operating position for winding up a plurality of threads. The second winding spindle 11.1 is in a change position for replacing full bobbins by empty winding cores. A second spindle support 10.2 arranged in the same plane is held in the machine frame 12 at the second winding point 29.2 in a mirror-image fashion in relation to the spindle support 10.1. The spindle support 10.2 carries the projecting winding spindles 7.2 and 11.2. In the operating situation illustrated, the winding spindle 7.2 is in the operating position and the winding spindle 11.2 in a change position. The spindle supports 10.1 and 10.2 in this exemplary embodiment are formed as winding turrets, which are held rotatably mounted in the machine frame 12. The two winding turrets 10.1 and 10.2 are coupled to a common rotary drive 3 0, it being possible for the winding turrets 10.1 and 10.2 to be driven in opposite directions of rotation. The rotary drive 3 0 is connected to a central control device 21. Each of the winding spindles 7.1, 7.2, 11.1 and 11.2 held on the spindle supports 10.1 and 10.2 is assigned a spindle drive; in fig. 2 the spindle drives 23.2 and 31.2 of the winding spindles 7.2 and 11.2 of the winding point 29.2 are shown. The spindle drives 23.1, 23.2, 31.1 and 31.2 of the winding spindles of the two winding points 29.1 and 29.2 are connected to the central control device 21 (fig. 3). Each of the spindle supports 10.1 and 10.2 has a pressing roll 6.1 and 6.2 arranged before it in the thread run. At the winding point 29.1, in this case the pressing roll 6.1 interacts with the winding spindle 7.1 in order to wind a plurality of threads 1.1 to form a bobbin 9 in each case. During the winding of the threads 1.1, the pressing roll 6.1 rests on the circumference of the bobbins 9. At the winding point 29.2, the press roll 6.2 accordingly interacts with the winding spindle located in the operating position in this case 7.2, in order to wind a second family of threads 1.2 to form bobbins. In this case, too, the pressing roll 6.2 rests on the circumference of the bobbins 9 to be wound. The pressing rolls 6.1 and 6.2 are rotatably mounted on a holder 13 and connected rigidly to each other by the holder 13. The holder 13 carries an oscillating means 4 arranged before the pressing rolls 6.1 and 6.2. The oscillating means 4 is arranged in a central plane in the thread supply between the winding points 29.1 and 29.2 and, for each winding point 29.1 and 29.2, has a variety of oscillating thread guides 5.1 and 5.2, by which the incoming threads 1.1 and 1.2 are laid to and fro within an oscillating stroke. The oscillating means 4 may be formed, for example, by means of an inversely threaded shaft which has one or more grooves for guiding the oscillating thread guides 5.1 and 5.2 on the circumference. Provided on an upper side of the holder 13 is a thread guide support 3, which carries two groups of top thread guides 2.1 and 2.2. The top thread guides 2.1 and 2.2 form the thread supply between the winding spindles 7.1 and 7.2. In this case, the group of thread guides 2.1 is assigned to the winding point 29.1, and the group of thread guides 2.2 is assigned to the winding point 29.2. The holder 13 is held on the machine frame 12 by a carriage 15 and the carriage guides 14.1 and 14.2 such that it can move vertically. The carriage 15 is in this case held in the carriage guides 14.1 and 14.2 by a force provider 32 in such a way that the pressing rolls 6 .1 and 6 .2 rest on the respective bobbins 9 .1 and 9 .2 with a predetermined contact force in each case during the winding of the threads of the families of threads 1.1 and 1.2. The force provider 32 is formed by two relief cylinder units 16.1 and 16.2, by means of which the total weight of the two pressing rolls 6.1 and 6.2 and of the holder 13 and the components additionally fitted to the holder 13, such as the oscillating means 4, are supported. The relief cylinder units 16.1 and 16.2, which act on the carriage 15 on both sides of the device, are connected to a control device 21, by means of which the relief cylinder units 16.1 and 16.2 can be controlled in their supporting action. Thus, the contact force acting between the pressing rolls 6.1 and 6.2 and the bobbins 9 during the winding of the threads is determined by a proportion of the total weight. As emerges from figs. 2 and 3, at the bearing ends of the winding spindles 7.1 and 11.1 and also 7.2 and 11.2, in each case there is formed a contact surface 17, on which the core end a rests on the winding core 8. On the winding spindles 7.2 and 11.2 of the winding point 29.2, the contact surfaces 17.2 are each formed by a spindle collar 33.2. In this case, the contact surfaces 17.2 cover a first contact plane 34.2. At the second winding point 29.1, the contact surfaces 17.1 at the bearing end of the winding spindles 7.1 and 11.1 are formed by the spindle collars 33.1. The spindle collars 33.1 are designed identically, so that the contact surfaces 17.1 cover a second contact plane 34.1. Between the stop planes 34.1 and 34.2, a space is formed, which is identified in fig. 3 by the uppercase letter A. Thus, the winding cores 8 on the winding spindles 7.1 and 11.1 and also 7.2 and 11.2 are kept in different relative positions. In order to produce bobbins with the same winding direction at the winding point 29.1 with a winding spindle 7.1 or 11.1 driven in the clockwise direction and at the winding point 29.2 with a winding spindle 7.2 or 11.2 driven in the counterclockwise direction, the winding cores 8 are clamped so as to be oriented on the winding spindles 7.1 and 11.1 in such a way that the catching regions each having a catching slot 3 5 facing the free spindle end. By contrast, the cores 8 on the winding spindles 7.2 and 11.2 are pushed on with the catching region facing the bearing end. In the case of the bobbins 9 wound on the winding spindle 11.1, the thread reserve 36 laid on the circumference of the core 3 at the start of the winding process is on the side of the bobbin 9 facing the free spindle end. By contrast, on the winding spindle 7.2 at the second winding point, the thread reserve 35 is wound on the side of the bobbin 9 facing toward the bearing end. Thus, in each case bobbins with the same winding direction are produced at both winding points 29.1 and 29.2 despite being wound in opposite directions. As illustrated in Fig. 3, the space A between the stop planes 34.1 and 34.2 is dimensioned in such a way that the bobbin offset necessitated by the asymmetrical occupancy of the cores 8 with the bobbins 9 is completely compensated for between the two winding points 29.1 and 29.2. Thus, the bobbins 9 at the two winding points 29.1 and 29.2 are opposite each other with mirror symmetry, so that the thread supply of the threads 1.1 and 1.2 is identical. Thus, the top thread guides 2.1 and 2.2 lie in the same plane. Likewise, the oscillating thread guides 5.1 and 5.2 are guided with mirror symmetry on the oscillating means. In the exemplary embodiment shown in figures 1 to 3, four threads of the families of threads 1.1 and 1.2 are wound to form a bobbin 9 in each case at the winding points 29.1 and 29.2. In principle, the number of threads wound simultaneously is exemplary; for example one or more threads can be wound for each winding point 29.1 and 29.2. In practice, however, take-up winding devices of this type are used exclusively for winding a large number of threads. In order to begin a winding operation on the winding spindles 7.1 and 7.2, the pressing rolls 6.1 and 6.2 are guided into a lower position by the carriage 15 and the relief cylinder unit 16.1 and 16.2. After the threads 1.1 and 1.2 of the families of threads have been caught on the winding cores 8 and the thread reserves 36 have been wound, the winding run begins. During the winding of the bobbins 9, relief cylinder units 16.1 and 16.2 are controlled and activated in such a way that a predefined contact force acts on the bobbins 9. The contact force is preferably kept constant as the threads are wound on the winding spindles 7.1 and 7.2. To this end, for example the relief pressure in the relief cylinder units 16.1 and 16.2 is set to a predefined value, sensed and controlled via the control device 21. By using pressure control of this type, the deviating movement of the carriage 15 may also advantageously be controlled. The deviating movement needed on account of the growth of the bobbins 9.1 and 9.2 as the threads of the families of threads 1.1 and 1.2 are wound up may in principle be carried out in this exemplary embodiment both by the movably held carriage 15 and by the movably held winding spindles 7.1 and 7.2. As a result of the fixed arrangement of the pressing rolls 6.1 and 6.2 on the holder 13, the growth of the bobbins 9 can take place synchronously as a result of moving the carriage 15. The rotary drive 30 of the spindle supports 10.1 and 10.2 may preferably be operated step-by-step or continuously in order to execute a deviating movement. In this case, the two spindle supports 10.1 and 10.2 are coupled to each other by a transmission means. In order to explain the drive concept of the exemplary embodiment described above of the take-up winding device according to the invention, two possible examples will be explained below by using figures 4 and 5. For reasons of clarity, in figs. 4 and 5 only the device parts of the winding points 29.1 and 29.2 required for driving are illustrated schematically from a rear view. In the drive concept according to fig. 4, at the winding point 29-1 the winding spindle 7.1 is coupled to a spindle drive 23.1 via one spindle end 22.1. The spindle drive 23.1 is assigned a controller 24.1, which is connected to the higher-order control device 21. In this case, the bobbin 9 wound on the winding spindle 7.1 is illustrated dashed. The freely rotatably mounted pressing roll 6.1, which is likewise illustrated dashed, rests on the circumference of the bobbin 9. The pressing roll 6.1 has a roll end 18.1. The roll end 18.1 is assigned a rotational speed sensor 20, by means of which the rotational speed of the pressing roll 6.1 can be registered. The rotational speed sensor 20 is connected to the control device 21. At the second winding point 29.2, the winding spindle 7.2 is coupled to the spindle drive 23.2 by the spindle end 22.2. The spindle drive 23.2 is assigned a controller 24.2, which is likewise connected to the control device 21. The bobbin 9, which is likewise illustrated dashed and which is formed on the circumference of the winding spindle 7.2, is in contact with the second pressing roll 6.2. The pressing roll 6.2 of the second winding point 29.2 is likewise freely rotatably held. The pressing roll 6.2 is in this case coupled by one roll end 18.2, by a transmission means 19, to the pressing roll 6.1 of the first winding point 29.1. The transmission means 19 in this exemplary embodiment is formed mechanically by a belt or chain, so that the two pressing rolls 6.1 and 6.2 of the two winding points revolve at the same rotational speed. In order to wind up the threads 1.1 at the winding point 29.1, the winding spindle 7.1 is driven in the clockwise direction by the spindle drive 23.1. The pressing roll 6.1 rests on the circumference of the bobbin 9 to be wound and is driven in the opposite direction via friction. At the winding point 29.2, the winding spindle 7.2 is driven in the counterclockwise direction by the spindle drive 23.2 in order to wind the threads 1.2 to form the bobbin 9. In this case, the pressing roll 6.2 on the circumference of the bobbin 9 rotates in the clockwise direction with the corresponding rotational speed of the pressing roll 6.1. The transmission of rotation between the pressing rolls 6.1 and 6.2 is carried out by the transmission means 19. The two winding points 29.1 and 29.2 are wound synchronously, so that identical installation of the bobbins 9 takes place on each of the winding spindles 7.1 and 7.2. In order to obtain a constant winding speed of the threads 1.1 and 1.2, the rotational speed of the pressing roll 6.1 is registered continuously by the rotational speed sensor 2 0 and passed on to the control device 21. An intended rotational speed of the pressing roll 6.1 is stored in the control device 21. As soon as an impermissible deviation between the sensed actual rotational speed of the pressing roll 6.1 and the stored intended rotational speed of the pressing roll 6.1 is registered, a control signal is generated and passed on to the controllers 24.1 and 24.2. The controllers 24.1 and 24.2 change the drive rotational speeds of the spindle drives 23.1 and 23.2 in the desired direction such that a changed actual rotational speed results on the pressing roll 6.1. Thus, during the entire winding of the threads 1.1 and 1.2, a constant circumferential speed of the bobbins 9 may be set. The spindle drives 23.1 and 23.2 are in this case preferably formed by asynchronous motors. The exemplary embodiment illustrated in fig. 5 is substantially identical to the exemplary embodiment according to fig. 4. In this case, the pressing rolls 6.1 and 6.2 are driven by an external drive 25 which, in this case, is formed by two electric motors 2 8.1 and 28.2 and an associated controller 27. Thus, the electrical coupling of the pressing rolls 6.1 and 6.2 can be combined with an external drive 25. However, it is also possible to couple the pressing rolls 6.1 and 6.2 with a transmission means and to drive them by means of only one electric motor. As compared with the exemplary embodiment according to fig. 4, the winding spindles 7.1 and 7.2 are each driven by the spindle drives 23.1 and 23.2. The spindle drives 23.1 and 23.2 can be formed as asynchronous motors or as synchronous motors. The spindle drives 23.1 and 23.2 are assigned a controller 24. The controller 24 is connected to the control device 21 and, together with the rotational speed sensor 20, forms a control loop to keep the circumferential speed of the bobbins 9 constant. A further exemplary embodiment of the take-up winding device according to the invention is illustrated schematically in a number of views in figures 6 and 7. Fig. S shows a front view of the exemplary embodiment, and Fig. 7 shows, schematically, a plan view of the winding spindles of the take-up winding device, arranged beside one another. To the extent that no express reference is made to one of the figures, the following description applies to both figures. The exemplary embodiment according to figures 6 and 7 has two winding points 29.1 and 29.2, which are formed beside each other in a machine frame 12. In this case, the winding points 29.1 and 29.2 are arranged beside each other in mirror-image fashion. At the winding point 29.1, a first winding spindle 7.1 is rotatably held in a projecting manner by a fixed-location spindle support 10.1. The spindle support 10.1 is fixed to the machine frame 12. Horizontally adjacent at the second winding point 29.2, a second spindle support 10.2 is likewise fixed to the machine frame 12. The second winding spindle 7.2 is rotatably mounted in a projecting manner on the spindle support 10.2. Each of the winding spindles 7.1 and 7.2 carries a winding core 3 to accommodate a bobbin 9. As emerges from fig. 7, at the bearing end of the winding spindle 7.1 there is formed a contact surface 17.1, and a contact surface 17.2 is formed on the winding spindle 7.2. The contact surfaces 17.1 and 17.2 lie in two adjacent stop planes 34.1 and 34.2, which form a space A between them. The contact surfaces 17.1 and 17.2 are formed directly by the bearing end of the winding spindles 7.1 and 7.2. To this end, the spindle support 10.1 projects further from the machine frame 12 than the spindle support 10.2. The projecting length difference between the spindle supports 10.1 and 10.2 thus determines the space A between the stop planes 34.1 and 34.2. The space A between the stop planes 34.1 and 34.2 is dimensioned in such a way that the ends of the bobbins 9 formed on the cores 8 are opposite each other. In this case, the thread reserve 36 on the cores 8 is formed at the free end on the winding spindle 7.1 and at the bearing end on the winding spindle 7.2. As fig. 6 reveals, the winding spindles 7.1 and 7.2 are each assigned a friction roll 3 7.1 and 37.2. The friction rolls 3 7.1 and 37.2 are driven, so that the winding spindles 7.1 and 7.2 and the bobbins 9 are driven by friction in order to wind up the threads 1.1 and 1.2. The friction rolls 37.1 and 37.2 are fitted to a holder 13. The holder 13 is guided on the machine frame 12 by a carriage 15 and a carriage guide 14.1 and 14.2 such that it can be adjusted vertically. The relief cylinder units 16.1 and 16.2 act on the carriage 15, in order firstly to obtain a necessary contact force between the friction rolls 3 7.1 and 3 7.2 and the bobbins 9 and, secondly, to be able to execute a deviating movement of the friction rolls 37.1 and 37.2 relative to the winding spindles 7.1 and 7.2 during the growth of the bobbin 9. In "his case, the function relating to the displacement of the carriage 15 is substantially identical to the preceding exemplary embodiment according to figures 1 to 3, so that reference can be made to the aforementioned description. Arranged on the upper side of the holder 13 are the top thread guides 2.1 and 2.2, in order to permit the thread supply between the winding spindles 7.1 and 7.2. Arranged between the top thread guides 2.1 and 2.2 and the friction rolls 37.1 and 37,2 is an oscillating means 4 which specifically has an oscillating thread guide 5.1 and 5.2 which projects into the thread run of the threads 1.1 and 1.2 and by means of which the threads 1.1 and 1.2 are guided to and fro within an oscillating stroke. In the exemplary embodiment of the take-up winding device according to the invention ttiat is illustrated in figures 6 and 7, in each case one thread is wound to f cna a bobbin on each of the winding spindles 7.1 and 7.2. However, it is also possible to construct a take-up winding device of this type for winding up a plurality of threads on one winding spindle. As compared with the exemplary embodiment illustrated previously according to figures 1 to 3, the exemplary embodiment illustrated in figures 6 and 7 is a partly automatic take-up winding device. In this case, after a fully wound bobbin has been reached, the winding operation is interrupted for the purpose of bobbin changing. Only after the finished wound bobbins have been replaced by empty cores is a new winding operation initiated. In this case, too, bobbins with the same winding direction are produced at the two winding points. The take-up winding device according to the invention is in particular suitable for winding freshly spun threads. In this case, the threads can be drawn off from a spinning device or a treatment device. The partcular advantage arising from the offset clamping of the winding cores permits the supply of the threads to the two winding points in respectively common thread running planes, so that no additional deflections are necessary. Furthermore, the thread guiding means in the take-up winding device, such as the top thread guides for example and the oscillating means, can be constructed identically at both winding points. The take-up winding device according to the invention is not restricted to the arrangement of the individual units illustrated in figures 1 and 7. In principle, in particular the pressing rolls at the winding points can be held by swinging arms such that they can move radially in relation to the winding spindles. The mounting of the winding spindles and the pressing rolls is substantially critical only for the execution of the deviating movement. Likewise, separate oscillating means can be provided for each winding point, in order to oscillate the threads before they run onto the bobbins. 37.1, 37.2 Friction rolls Patent claims 1. A take-up winding device comprising two spindle supports (10.1, 10.2) which are arranged beside each other, on which in each case at least one projecting rotatably mounted winding spindle (7.1, 7.2) is arranged to hold a winding core (8) for the simultaneous winding of threads (1.1, 1.2) to form bobbins (9) , comprising two spindle drives (23, 37) which are assigned to the winding spindles (7.1, 7.2) and by means of which the winding spindles (7.1, 7.2) can be driven in opposite directions, and comprising a thread supply (2.1, 2.2) formed between the winding spindles (7.1, 7.2), characterized in that, at the bearing end, the winding spindles (7.1, 7.2) each have a contact surface (17.1, 17.2) for one end of the winding core (8) , and in that the contact surfaces (17.1, 17.2) are arranged in two adjacent stop planes (34.1, 34.2) which form a space (A) between them. 2. The device as claimed in claim 1, characterized in that the space (A) between the stop planes (34.1, 34.2) is dimensioned in such a way that, when identical winding cores (8) are used, the bobbins (9) wound on the winding cores (8) of the two winding spindles (7.1, 7.2) have their bobbin ends opposite each other. 3. The device as claimed in claim 1 or 2, characterized in that the contact surfaces (17.1, 17.2) are formed by two stop means (33.1, 33.2), the stop means (33.1, 33.2} on the winding spindles (7.1, 7.2) being formed or fixed differently. 4. The device as claimed in claim 1 or 2, characterized in that the contact surfaces (17.1, 17.2) are formed by the bearing ends of the winding spindles (7.1, 7.2), the spindle supports (10.1, 10.2) being held on a machine frame (12) so as to be offset in relation to one another by the space (A) between the stop planes (34.1, 34.2). 5. The device as claimed in one of claims 1 to 4, characterized in that the spindle supports (10.1, 10.2) are formed by two rotatably mounted spindle turrets, which in each case carry two winding spindles (7.1, 11.1, 7.2, 11.2), and in that the winding spindles (7.1, 11.1, 7.2, 11.2) assigned to one of the spindle turrets (10.17 10.2) in each case have contact surfaces (17.1, 17.2) in one of the stop planes (34.1, 34.2). 6. The device as claimed in one of the aforementioned claims, characterized in that the spindle drives are formed by two friction rolls (37.1, 37.2) which are assigned to the spindle supports (7.1, 7.2), which rest on the circumference of the winding cores (8) or the bobbins (9) and are driven in opposite directions with a constant speed of rotation during winding. 7. The device as claimed in one of claims 1 to 5, characterized in that the spindle drives are formed by a plurality of electric motors (23.1, 23.2) assigned to the winding spindles (7.1, 7.2). 8. The device as claimed in claims 7, characterized in that two pressing rolls (5.1, 5.2) assigned to "he spindle supports (10.1, 10.2) are provided, which rest on the circumference of the winding cores (3) or bobbins (9) during winding. 9. The device as claimed in claim 8, characterized in that the pressing rolls (6.1, 6.2) are connected to each other by a transmission means (19) in such a way that the two pressing rolls (6.1, 6.2) revolve in opposite directions at the same rotational speed. 10. The device as claimed in claim 8 or 9, characterized in that an external drive (25) is provided in order to drive the pressing rolls (6.1, 6.2) separately or jointly in opposite directions. 11. The device as claimed in one of claims 8 to 10, characterized in that the pressing rolls (6.1, 6.2} are rigidly connected to a holder (13) which is held on the machine frame (12) by means of a carriage (15) and a carriage guide (14.1, 14.2) such that it can move, and by means of which the pressing rolls (6.1, 6.2) execute a deviating movement in the radial direction relative to the winding spindles (7.1, 7.2). 12. The device as claimed in one of claims 1 to 11, characterized in that the thread supply (2.1, 2.2) is assigned an oscillating means (4) , by means of which the incoming threads (1.1, 1.2) are guided to and fro before running onto the bobbins (9) .

Documents:

4033-CHENP-2006 ABSTRACT.pdf

4033-CHENP-2006 CLAIMS.pdf

4033-CHENP-2006 DRAWINGS.pdf

4033-CHENP-2006 FORM-2.pdf

4033-CHENP-2006 CORRESPONDENCE OTHERS.pdf

4033-CHENP-2006 CORRESPONDENCE PO.pdf

4033-chenp-2006-abstract.pdf

4033-chenp-2006-claims.pdf

4033-chenp-2006-correspondnece-others.pdf

4033-chenp-2006-description(complete).pdf

4033-chenp-2006-drawings.pdf

4033-chenp-2006-form 1.pdf

4033-chenp-2006-form 18.pdf

4033-chenp-2006-form 26.pdf

4033-chenp-2006-form 3.pdf

4033-chenp-2006-form 5.pdf

4033-chenp-2006-pct.pdf

EXAMINATION REPORT REPLY.PDF