WO1990007598A1

WO1990007598A1 - Process and device for laying an auxiliary thread on the yarn carrier of a spinning machine

Info

Publication number: WO1990007598A1
Application number: PCT/EP1989/001604
Authority: WO
Inventors: Walter Slavik; Peter Stamm; Werner Graber
Original assignee: Maschinenfabrik Rieter Ag
Priority date: 1988-12-31
Filing date: 1989-12-22
Publication date: 1990-07-12
Also published as: JPH03504146A; EP0382943A1; DE58909434D1; WO1990007599A1; JPH03503912A; EP0382943B1; EP0377888A1; DE58909703D1; ATE140490T1; ATE127868T1; EP0377888B1

Abstract

In order to lay an auxiliary thread on a yarn carrier of a spinning machine located at the spinning point, a piece of auxiliary thread (6.1) clamped at both ends in guided holding devices (35, 15) is laid on the yarn carrier and looped together with one of the holding devices (35) around the yarn carrier (40), which is stationary but free to rotate, until the piece of auxiliary thread (6.1) entrains the yarn carrier (40) by friction, and the yarn carrier (40) which is entrained in rotation automatically winds a further piece of the auxiliary thread (6) against a restraining action of the second holding device (15). As a predetermined limit is imposed on the length of the auxiliary thread, the latter can be completely removed by a cleaning section in a downstream automatic cross bobbin winder. The yarn quality of the auxiliary thread need not be identical to that of the spun yarn.

Description

Method and device for applying an auxiliary thread to the thread carrier in a spinning machine

The invention relates to a method and an operating device for placing an auxiliary thread on a spinning machine located at the spinning position. Under a yarn carrier is a blank or understood by a yarn package ^'provided sleeve. The method and the operating robot can be used to fix thread breaks during the spinning process and for robot-assisted piecing or for winding after doffing on a ring spinning machine.

Operating robots are known which search for the thread breakage repair, for example in ring spinning machines, the thread end on the cop yarn package, thread it through the runner etc. and attach it to the drafting system outlet. If the search for the end of the thread is unsuccessful, such an operating robot puts the relevant spinning station out of operation by means of a corresponding device, for example by interrupting the fuse, the operating personnel subsequently having to remedy the broken thread. In order to increase the efficiency of the spinning machine, it has therefore already been proposed to eliminate the search process for the thread end on the package and instead to place an auxiliary thread on the package. to throw on body. The cop pulled off during doffing then has two or more separate thread part lengths if this operation is successful.

The auxiliary thread is applied according to the state of the art, e.g. by blowing a free auxiliary thread end onto the package. From DE 25 01 338 a method for blowing a free auxiliary thread end onto a winding spool is known, in which the free end of the auxiliary thread is stored in a storage device in such a way that it is kept under tension and thus without slack relative to the auxiliary thread spool can be. The thread of the auxiliary thread should keep its twist so that no loops are formed. The blown end of the auxiliary thread should be carried away by the rotating package until a sufficiently long piece of the auxiliary thread is wound up.

This and similar solutions are still subject to fundamental shortcomings. First, the presence of a yarn package is required for blowing on the auxiliary thread, since the success of the blowing depends on the static friction between the thread body and the auxiliary thread. The auxiliary thread cannot be blown onto an empty thread tube. Secondly, this blowing method does not succeed in practice with the required reliability because the time at which the thread is taken along by the spindle is not defined, but is purely coincidental. The length of the Auxiliary thread indefinite. This has the consequence that not all piecings can be completely removed by cleaning cuts in cross-wound bobbins, so that the auxiliary thread must always correspond to the yarn quality just spun. In the event of a batch change, all auxiliary yarn supplies must also be replaced. Furthermore, automatic piecing, that is to say the winding of the empty tubes, when the spinning machine is started up, after doffing or after a batch change, is not possible with the proposals that have become known.

Further examples of operating robots which are designed to correct thread breaks on a ring spinning machine can be found in US Pat. Nos. 3,445,997, DAS 1,760,259, DAS 2,501,338 and US Pat. No. 3,628,320. With all such robots, it is necessary to carry out certain work on the spindle of the processing position (spinning station). Such work includes e.g. to find the end of the thread on the bobbin (thread bobbin) carried by the spindle or to wind an auxiliary thread on the bobbin, to thread a thread with the traveler, etc.

In all known solutions, only the "front" is used, ie the robot normally runs along a machine side, which can be referred to as the "front" in relation to the corresponding row of spinning positions. If the robot has to do work at a certain point, it first positions at this point and then extends working elements from this front into the spinning position. In such circumstances, it is almost impossible to make controlled movements of the working elements around the entire circumference of the spindle. Starting from the prior art according to DE 25 01 338, it is therefore an important object of the present invention to propose a method and a device which make it possible to ensure that an auxiliary thread is securely wound onto a sleeve. most, regardless of whether the sleeve is provided with a package or not.

This object is achieved by the method according to claim 1 and the operating device according to claim 17. It is now possible to produce a connection of the auxiliary thread to the sleeve that is successful with high reliability. The piece of auxiliary thread to be wound is elastically clamped on two sides. The positions of the clamping points are clearly defined at all times. Your movement sequences take place absolutely clearly and reproducibly by means of corresponding guides or coordinate controls. After the first mechanical wrapping of the sleeve with the auxiliary thread in the context of this defined, controlled process, the auxiliary thread in FIG

Rotation offsets the further winding of the thread itself, as a result of which the winding process is extremely reliable and takes place in the shortest possible time and without the uncertainties of a "try-and-error" process. A particularly advantageous consequence of this measure is the possibility of limiting the length of the auxiliary thread used to a certain dimension, so that the auxiliary thread can be removed completely in a subsequent automatic winder by a cleaning cut with certainty. As a consequence, any auxiliary thread can now be used. It no longer has to be identical to the spun thread. This means that the operating robot can also be replaced without any further adaptation measures with regard to the auxiliary thread, for example for maintenance work on the robot while the spinning machine is in operation. It is particularly advantageous to use an auxiliary thread with a rough surface for automatic cleaning of the rotor and the other thread guide elements. In addition, the first turns on the sleeve or, if present, on the package can be clamped by further winding with the auxiliary thread in such a way that the winding connection of the auxiliary thread, for example on particularly smooth sleeves, is further reinforced.

If the position of the first turn is placed in the vicinity of the upper limit of the ring bank stroke, a possibly existing package is detected in the area of its cone, so that the auxiliary thread winding is covered directly by the package. In addition, the winding ring can have a smaller diameter and can therefore be moved particularly well because it has less inertia

The proposed solution can be used particularly advantageously in connection with a method as described in the CH patent applications 4126/88 and 3545/88, in particular for cops with several thread part lengths and using a cop preparation station.

The method according to the invention can be carried out reliably in practice if one proceeds according to claims 13 to 16. The invention further provides an operating device for performing work on a yarn processing position comprising a spindle. The device is characterized by means for forming a guide around the spindle axis and means for moving at least one working element along this guide.

The means for forming a guide can comprise a carrier part or holder, which can be advanced by moving in a direction transverse to the spindle axis on the spindle or on a cop carried by the spindle. The guide can comprise an essentially annular raceway, but which can have an opening in order to enable the guide to be advanced on the spindle without the guide first having to be moved above the uppermost end of the spindle or the cop.

The means for moving a working element can comprise an essentially ring-shaped operating runner or winding ring, which, however, can also have an opening for the purpose already described. In the preferred embodiment, both the track and the operator runner are C-shaped. Means are preferably provided to determine the position of the operating runner in the circumferential direction with respect to his career, so that when the device is delivered to the spindle, the openings of the two C-shaped parts are aligned with one another.

The working element carried by the operating rotor can comprise, for example, a clamping device for dragging a thread or an element for striping the spinning ring. The latter element could be used, for example, to move the ring traveler when threading the thread and could include a brush for this purpose. The carrier section preferably comprises a drive means for rotating the operating rotor about the axis of the raceway, which can roughly escape with the spindle axis when it is delivered to the spindle. Such a drive means can comprise a toothed ring and a transmission means which transmits the rotation of the toothed ring to the operating rotor. The transmission means can comprise a positive connection. It can then ^'be ungselementen provided a plurality of carry-over, so that at least one element still remains with the ring and the operating traveler in connection when the other member opposite to the opening of a C-shaped Bedie¬ is voltage rotor and the rotation of the drive ring therefore not can transmit more.

The carrier section can also be a controllable actuating element e.g. have a rocker arm in order to actuate a working element carried by the operating runner (e.g. to open or close a clamping device) when the operating runner lies in a predetermined position relative to the carrier section.

Further important and advantageous embodiments of the method according to the invention and the device according to the invention can be found in the further claims, which are not expressly recognized above.

All in all, the measures set out here result in a very high starting success when winding, the aids used being of simple construction. Details and further advantages of the invention are explained in more detail below on the basis of preferred exemplary embodiments with the aid of the drawings. The selected exemplary embodiments are intended to show the principle of the invention. The invention is not restricted to the examples shown. The figures show schematically:

1 shows an operating robot,

Fig. 2 is a simplified winding device in bottom view and

3 in a partially sectioned side view,

4 is a plan view of one end of the winding device according to FIG. 2,

5 is a side view of the portion of a sleeve,

6 shows a schematic illustration, which is similar to FIG. 1, but is not identical, for the further explanation of the cooperation of an operating robot with an operating device according to this invention,

7 is a schematic representation of a control for the operating device of FIG. 6,

8 is a top view of the operating device of FIG. 7 in its working position on a spindle,

9 is a view in the longitudinal direction of the ring spinning machine seen with the control device in a first working position, 10 is a plan view in the direction of arrow A of FIG. 9 with an operating runner of the device in a standby position,

11 shows a similar top view after the service runner has started to move out of the ready position,

Fig. 12 is a side view corresponding to FIG. 9 with the

Operating device in a second working position,

13 is a plan view in the direction of arrow A in FIG. 12 with the service runner again in its standby position,

Fig. 14 is a plan view corresponding to FIG. 13 with the

Operating device in a retracted position and with a thread deflecting element advanced,

15 shows a schematic, perspective illustration of a cop and ring traveler to explain the requirements when threading the thread with the ring traveler,

Fig. 16 is a plan view corresponding to Fig. 14, but after

Displacement of one of the thread guide elements,

17 is a plan view corresponding to FIG. 14, but with the operating device again in its second working position,

18 is a side view in the longitudinal direction of the machine with the operating device in a third working position, and Fig. 19 is a plan view in the direction of arrow A of Fig. 18 after another shift of one of the thread guide elements.

An operating robot 2 can be moved along a ring bench 3 of a spinning machine and, upon a corresponding signal, positions itself automatically at a specific spinning position, e.g. to fix a thread break. The robot 2 contains e.g. a supply spool 5 for an auxiliary thread 6, a delivery mechanism 7 for pulling off the auxiliary thread 6 from the supply spool 5, a cutting device 9, a winding device 12, which is e.g. a threaded spindle 13 is adjustable in height in the Z direction and horizontally linearly displaceable in the X direction by means of a toothed wheel or a friction wheel 14. Furthermore, a suction pipe 15 is provided, which is connected by a hose 19 to a vacuum source 20. The suction pipe 15 is designed to receive a thread section; it can be moved or positioned three-dimensionally under the influence of a control.

The winding device 12 has a holder 26, which has a lamella-like shape and can be moved in the X direction according to FIG. 2. A winding ring 27 is rotatably mounted in the holder 26. In the example, the winding ring has a sufficiently large feedthrough 29 so that it extends laterally over the yarn tube or over the Can push the package, as will be explained later. The winding ring 27 can, however, also be designed so that it can be pushed axially over the yarn tube according to an alternative embodiment.

Below the holder 26, the winding ring 27 has a ring gear 30 which is coupled to a motor drive 34 via intermediate wheels 33A and 33B, as can be seen from FIG. 3. On the underside of the ring 27 is a controlled thread clamping means, e.g. a pneumatically actuated clamping pin 35 is attached.

As a preparation step for the actual winding process of the operating robot, an auxiliary thread piece 6.1 of a certain length, in the example about 150 cm, is sucked into the tube 15. This is done by activating the delivery mechanism 7 with a specific positioning of the suction pipe 15, e.g. in position P.1 according to Fig. 4. By means of suitable control means, the delivery mechanism 7 is switched off as soon as the desired auxiliary thread length is in the tube 15, e.g. when the auxiliary thread start 6.3 reaches a thread sensor 36 at the rear area of the suction pipe 15.

The mouth of the suction pipe 15 now makes a pendulum movement in the inner region of the winding ring 27, for example along the path 39 indicated in FIG. 4 into the position P.2. The auxiliary thread is placed in front of the opened clamping pin 35 on the underside of the winding ring 27. Subsequently, the suction pipe 15 is guided back again, around the still open clamping pin 35, into the starting position P.1. The clamping pin 35 is at least partially by the auxiliary thread, in the example by about 180 Degrees, entwined. Now the clamping pin 35 is closed, for example by activating the pneumatics, so that it holds the auxiliary thread 6 firmly clamped. Now the cutter 9 separates the ^'auxiliary thread 6 on the feed so that an auxiliary thread-end 6.2 is formed. For the further process steps, the resulting defined auxiliary thread length is used. The auxiliary thread start 6.3 is still in the suction pipe 15. The auxiliary thread is held in the suction pipe 15 by the suction effect with a slight pull relative to the clamping pin 35. With the mouth of the suction pipe 15, the controlled guidance of the auxiliary thread which is elastically retained in the suction pipe takes place.

To prepare for the next method steps, the sleeve 40 is braked to a standstill by suitable measures, for example by actuating the spindle brake not shown in detail in the figures. The brake is then released again, so that the sleeve 40 with its sleeve carrier stands still but can be freely rotated. Now the holder 26 is moved by the toothed or friction wheel 14 linearly in the X direction in the area between the ring bank 3 and the thread balloon ring 41 towards the sleeve 40 until the ring 27 is coaxial with the axis of rotation of the sleeve 40. If there is already a package on the sleeve, the winding device is guided in such a Z position that the winding ring 27 comes to stand above the package by a certain amount. The linear movement in X- Direction can take place by a linear motor controlled by a central sequence control of the operating robot or by a stepping motor, as indicated schematically by the toothed or friction wheel 14.

The suction pipe 15 is moved to the lower winding position P.4, e.g. performed within the range of the ring bench movement, as is shown schematically in FIG. 5. By activating the drive 34, the ring 27 is now caused to a defined number of revolutions. It thus winds the auxiliary thread end 6.2 held on the clamping pin 35 around the sleeve 40 or around its package. During this winding process, the auxiliary thread 6 is increasingly pulled elastically out of the retaining suction tube 15.

After a certain small number of turns, determined, for example, by the number of revolutions of the drive 34, the friction of the auxiliary thread 6 on the sleeve 40 becomes so great that the auxiliary thread grips the sleeve 40, forces it to rotate, and then the rotating sleeve itself takes over the winding of a further piece of the auxiliary thread 6 from the suction pipe 15. After a certain auxiliary thread length has been taken over from the suction pipe 15, the sleeve 40 is braked to a standstill, for example via the machine's own spindle brake or a spindle brake connected to the operating robot, so that, on the one hand, the remaining auxiliary thread length remains in the Suction tube is guaranteed and on the other hand the wound auxiliary thread cannot be pulled off the package • again, for example in a subsequent threading process.

The described towing of the sleeve 40 by the auxiliary thread 6 and the subsequent takeover of the winding drive function by the sleeve itself represents the decisive process step with which the winding of the auxiliary thread with the support of the described tools for thread guidance is practically ensured. No auxiliary criteria need to be used to determine that the thread is wound. Rather, the sleeve winds up the auxiliary thread itself with high security at a decisive moment in the course of a clearly defined winding process.

The various steps during the winding process for the example described are shown once again with reference to FIG. 4. At the beginning of the actual winding, the end of the suction pipe 15 is, for example, about 15 mm below the clamping pin 35. In the example, it is already within the range of the lifting height of the ring bank 3. When the winding process begins, the end of the auxiliary thread lies 6.2 somewhat oblique according to position P.3. After a few turns, it comes automatically into the approximately horizontal lower winding position P.4 and thus, if present, on the winding cone of a yarn core 43. In a possible additional process step, the winding ring 27 with the clamping pin 35 and possibly also the suction pipe 15 can be guided upwards somewhat, so that the first turn 42 is additionally overwound and thus tied off. This binding gives the auxiliary end particularly additional hold on a bare, smooth sleeve.

As can be seen from the basic illustration of the winding process, the position of the winding on the yarn carrier is arbitrary. After doffing can be wrapped on the empty tube below; after a thread break can be wound on the package; or a thread reserve can even be formed outside the package area.

In a next process step, the auxiliary thread end 6.2 is released from the clamping pin 35. This happens e.g. by releasing the pneumatic clamping device or, when the winding ring 27 is still rotating, by controlled actuation of the spindle brake, whereby the spindle is stopped with the sleeve 40. The resulting tension pulls the auxiliary thread end 6.2 out of the clamping device. Then the rotation of the winding ring 27 is also stopped.

The auxiliary thread end can in principle be cut off by any relative movement between the clamping pin 35 and the sleeve 40 or by staggering in time when the brake the sleeve 40 or the ring 27 take place. A solution deviating from the example shown above consists in first stopping the ring 27 and thus the clamping pin 35, so that after the auxiliary thread end 6.2 is torn off when the sleeve 40 is turned further, additional turns are drawn from the suction tube 15 onto the sleeve 40 be, and the remaining piece of the auxiliary thread end 6.2 is fully integrated in the package. The auxiliary thread end 6.2 can also be torn out of the clamping pin 35 by a jerky linear movement of the winding device 12.

The auxiliary thread can also be cut off after threading into thread guide elements, which is not shown in detail here. It is thus ensured that the auxiliary thread end held by the gill means 35 prevents the yarn carrier from rotating further and thus from unwinding from the yarn carrier.

The operating robot 2 can then feed the auxiliary thread start 6.3 from the suction tube 15 to the spinning station or the various thread guide elements and attach it to the running fiber stream. These operations are no longer part of the actual winding process and will not be described further here.

The auxiliary thread store according to the example shown above is designed as a suction pipe 15, which is an elastic one Retaining the auxiliary thread against the tensile force caused by the clamping pin 35. However, the auxiliary thread store can also have a different design suitable for the purpose described.

The central sequence control of the described method steps takes place in the example via a processor-controlled programmable control device, which is housed in the operating robot and ensures automatic operation, certain processes, such as the synchronization with processes on the spinning machine or the triggering of the spindle brakes, via interfaces for machine control. However, other suitable forms of sequence control can also be implemented using available means.

A decisive advantage of the winding device described is that the beginning and end of the auxiliary thread are held by components whose positions are clearly determined. The auxiliary thread, which is elastically clamped between two "grippers", can be manipulated three-dimensionally in this way, so that the winding location on the sleeve 40, furthermore the type of winding formation and also the length of the auxiliary thread to be wound, from the operating device, for example by program specifications, are controllable. Under these conditions, the winding described above can be ensured with a high degree of reliability using a towing effect through the thread sleeve or the thread body itself. len. The winding process is controlled in a clearly defined sequence of movements, which is no longer influenced by coincidences, as was the case, for example, when blowing a free auxiliary thread end onto the package according to the prior art.

With the help of the described winding process and the winding device, there are also significant advantages when winding after doffing. The winding of the empty sleeves can be robot-controlled, with a particularly high reliability of the winding process being achieved. Furthermore, a batch change can also take place fully automatically, avoiding the manual and time-consuming process which has previously been time and personnel intensive.

The operating robot of FIG. 6 can be provided with a handling device according to another Swiss patent application (“sister application”) by the same applicant with the title “handling device for threading”, which application is filed on the same day as this application. FIG. 1 of this application largely corresponds to FIG. 6 of the sister application mentioned and, as far as possible, the same reference numerals point to the same parts in both applications. Those of these two Applications shown and claimed systems and equipment i.dienen also for ^'carrying out the method explained in connection with Figs. 1 to 5. The

However, a combination of the various aspects of both the method and the devices is not mandatory.

Figures 6 and 7 are purely schematic representations to explain the general principle without relation to a practical embodiment.

In FIG. 6, reference numeral 100 indicates the chassis of the operating robot for operating spinning positions on a ring spinning machine. Each such spinning station contains an assembly 101 for imparting rotation and for inducing the yarn; this unit 101 here comprises a spindle 102, a spinning ring 106 carried by a ring bench 104 and a rotor 108 mounted on the spinning ring 106. The chassis 100 runs along a machine side on bicycles 105 guided by a guide rail 103. A support arm 107 carries a guide roller 109, which runs in a further guide rail 113 carried by the machine and holds the chassis 100 in a predetermined position with respect to the machine. The guide rail 113 is mounted on the machine frame (not shown) by a suitable holder 115.

To carry out operating work at a spinning station, the operating robot comprises both a winding device 150, which should be explained in more detail below, and a handling device 124, which is described in detail in the aforementioned sister application and therefore only in this application has been treated sketchily. The handling device 124 namely comprises a suction tube 134 for receiving a predetermined thread length (not shown) with a mouth part 136 and a connection 138 to a vacuum source 132 carried by the chassis 100. The mouth part 136 of the suction tube 134 can be controlled by a controllable articulation system 140 (only schematically indicated ¬ tet) can be moved relative to the chassis 100.

After positioning the robot at a spinning position, the mouth part 136 is brought to a delivery point 128 for picking up thread 144 from a thread supply 122 carried by the chassis 100. The thread is delivered from a delivery mechanism 126 mounted on the chassis 100 via the delivery point 128 into the suction tube 134 until this tube has taken up a predetermined thread length. The joint system 140 of the handling device is then actuated in order to establish a “connection” with the winding device 150. This "connection" will be described in more detail below but has already been dealt with in connection with FIGS. 1-5. After this connection has been established, the thread 144 is separated between the delivery mechanism 126 and the winding device 150 (release means not shown), so that the thread length picked up is now manipulated by the handling device 124 and winding device 150 independently of the supply 122 in accordance with a predetermined control program can be.

The schematic representation in FIG. 6 is favorable for identifying the different parts in that these parts have been shown far apart. However, the illustration is unrealistic, insofar as the mouth part 136 and the winding device 150 are sealed must be guided side by side after they have entered a single spinning station via the "surface line" 117 of the machine. For driving, on the other hand, both the handling device 124 and the winding device 150 can be retracted into the chassis 100, so that the robot has a clear distance L from the surface line 117 when driving along the machine (with the exception of the guide system 107, 109). It follows that the winding device 150 must be movable in a direction (the “X direction”) transverse to the vertical longitudinal axis of the spindle 102. In addition, the device must be movable in one direction (the "Z direction") along the spindle axis, as is clear from the description below.

FIG. 7 schematically shows a drive system for moving the winding device 150 both in the X and in the Z direction. In the system according to FIG. 7, the device 150 is mounted on the piston rod 200 of a piston-cylinder unit 202. By feeding compressed air from a suitable source (not shown) to the cylinder, the piston is pressed from its retracted position to the right according to the side view in FIG. 2 against the spindle 102. This movement is limited by a suitable stop (not shown) in order to hold the winding device 150 in a suitable working position with respect to the spindle 102, which is still to be described. When the compressed air supply to the unit 202 is canceled, the device 150 will return from its working position to a retracted position.

The unit 202 is mounted on a slide 186, which in turn is mounted on a threaded spindle 196 via a carrier 184. Spindle 196 is in Chassis 100 is mounted vertically (ie essentially parallel to the longitudinal axis of spindle 102) and coupled at one end to a drive motor 204. When the motor shaft (not shown) rotates, the spindle 196 is rotated about its own longitudinal axis in order to move the slide 186 in the Z direction (up or down). The drive motor 204 is controlled by a microprocessor with suitable programming (software); However, in order to illustrate the control method visually, the control program is indicated schematically by control loops or a control box. In a first state, the motor 204 is controlled by a sensor 206 via a first controller 208, in a second state by the same sensor 206 via a second controller 210 and in a third state by a controller 212.

The sensor 206 responds to the position of the ring bench 104 in order to position the slide 186 with the winding device 150 accordingly in the Z direction. The signal emitted by the sensor 206 is delivered to the first controller 208 via the switching means 214 while the robot is traveling and during a certain phase of the operating work (as will be explained in more detail below) by switching from the switching means 214 to the second controller 210 delivered. The controller 212 controls the drive motor 204 if the position of the slide 186 has to be controlled independently of the ring bench position, e.g. when picking up the auxiliary thread at delivery point 128 (Figure Θ).

Before going into the workflow and the corresponding control, you should first use the FIG. 8 the working head of the winding device 150 are explained in more detail.

The individual spinning positions of a ring spinning machine are shielded from one another in the longitudinal direction of the machine by so-called separators 194. The working head shown in FIG. 8 comprises a carrier section 220 which remains outside the spinning station space defined by the separators 194 and a C-shaped part 222 which projects into the space of the spinning station to be operated in all working positions of the winding device 150. The C-shaped part 222 surrounds (in part) a C-shaped operating runner 224 and forms a guide in the form of a track 226 for the operating runner. These two C-shaped parts 222, 224 have a common axis P, which is used in all work ¬ positions of the winding device is aligned with the longitudinal axis of the spindle 102 or in the vicinity of the spindle axis and approximately parallel to it. The operator runner 224 is rotatable in the track 226 about the axis P relative to the C-shaped part 222. For this purpose, the operator runner 224 is included. a sprocket 228 (indicated by dashed lines) and this sprocket meshes with two toothed rollers 230. The rollers 230 in turn mesh with the sprocket a drive disk 232 which is rotatably mounted in the carrier section 220 and is rotated by a suitable drive motor 234 can.

To the device 150 in a working position on a

To move spindle 102 by moving in the X direction (FIG. 7) from a retracted position (without first having to move the device above the spindle tip), the opening 236 of the operating barrel or the winding ring 224 with the opening 238 of the C- shaped Bracket 222 be aligned. The operator runner 224 is therefore provided with a suitable marking (not shown) and the C-shaped part 222 carries a sensor 240 which reacts to this marking in order for this "ready position" of the operator operator 224 relative to its holder 222 to the Control (not shown) for motor 234 to display.

The access opening 240 formed thereby is wide enough to receive the spindle 102 and a sleeve 112 carried by it (FIG. 9, not indicated in FIG. 8), but not a cop 116 formed on the sleeve 112 (FIG. 9). The feed of the winding device 150 to the spindle 102 must therefore take place at a height (along the spindle axis) which lies above the currently highest winding position of the spinning ring 106 (FIG. 9). The distance between the transfer rollers 230 in the circumferential direction of the operating rotor 224 is selected such that if the one roller 230 no longer meshes with the toothed ring 228 due to the discontinuity caused by the access opening 240, the transmission of the drive forces from the disk remains 232 to the operator runner 224 via the other roles.

The operating rotor 224 carries two working elements 242, 244. The element 242 comprises a pin which runs vertically through a suitable bore in the operating rotor 224 and is provided with a clamping head 246 on the underside of the rotor 224. The pin is pushed up by a suitable spring load (not shown) to hold the clamping head 246 in a clamping position contacting the underside of the operator rotor. When the operator runner 224 is positioned in its standby position, can this clamping device can be opened by an actuating mechanism 248 mounted on the carrier section 220. This mechanism comprises a rocker arm 250 with a head 252, which lies just above the pin when the operator runner 224 is in its ready position (FIGS. 8 and 9). By tilting the lever 250 (e.g. by means of a pneumatic device on the carrier part 220, not shown) in a clockwise direction according to FIG. 9, the head 242 can initially be brought into contact with the pin and then moved on to the pin with the clamping head 246 against the spring load to push down.

Before the already mentioned pick-up of the auxiliary thread, the device 150 is brought near the delivery point 128 by the actuation of the motor 204 (FIG. 7) by the control 212, the operator runner 224 being held in its ready position in relation to the part 222. By suitable movements of the mouth part 136 as explained in connection with FIGS. 1 to 5 and the.

When the clamping device is opened by the actuating mechanism 248, an auxiliary thread extending between the mouth part 136 and the delivery point 128 is moved into the clamping device and, by releasing the mechanism 248, connected to the operating rotor 224 by clamping. After the auxiliary thread has been separated from the supply 122, the winding device 150 and the handling device 124 together form a piecing unit, which can first connect the stored auxiliary thread to the winding unit 101, then thread it with the thread guide elements of the spinning station and finally with one of a drafting system (not shown). supplied roving. The second working element 244 is a flexible element, for example a brush for brushing the upward-facing surface of the ring 106. This element is used for moving the rotor 10 on the spinning ring 106 as described in more detail below.

After an auxiliary thread length has been picked up from the suction pipe 134 at the delivery point 128 and has been connected to the service runner 224, the slide 186 is moved upward by actuating the motor 204 in order to move the device 150 into a predetermined position with respect to the currently uppermost one Bring turns W (Figure 9) of the cop. For this purpose, the highest position of the ring bank 104 is sensed and stored while the robot is moving, so that the controller 208 is able to bring the slide 186 immediately to the appropriate working height (along the threaded spindle 196) after leaving the delivery point 128 . When the carriage 186 has reached the working height, the unit 202 is actuated to move the device 150 against the spindle 102 into the first working position (FIG. 9).

In this first working position, the clamping plane formed by the clamping head 246 and the operating rotor 224 lies above the uppermost windings W of the cop at a predetermined distance (not shown). In FIG. 9 it is assumed that the cop is almost finished, so that the uppermost windings W are in this case close to the upper end E of the sleeve 112. However, a thread break can already occur in the first phase of the bobbin formation, so that the first working position would then lie much further down relative to the spindle 102 and sleeve 112. In the event of a thread break during a Doff process, it can even happen that the the corresponding spinning station is not started at all, so that the auxiliary thread must be connected to the "bare" sleeve. The correct first job can still be determined in relation to the uppermost position of the ring bench 104 during its traversing movement.

As can be seen from FIG. 1.0, the operating rotor 224 is held in its ready position during this infeed movement, so that the access opening 240 for receiving the spindle 102 and sleeve 112 is present. The mouth part 136 is brought into a corresponding work station so that the mouth M (FIG. 9) lies below the clamping plane at a distance to be described. The auxiliary thread F extends between the mouth M and the clamping head 246 with an inclination corresponding to the vertical distance between the mouth M and the clamping plane (solid line in FIG. 9).

The motor 234 (FIG. 8) is now actuated in order to rotate the operator runner 224 in its career 226 (FIG. 8) clockwise according to FIG. 6 about the axis P. This rotation initially shortens the distance between the mouth M and the clamping head 246, the "unnecessary" length of the thread F being absorbed by the suction in the tube 134. The thread F is pulled out of the suction tube 134 again by further rotations of the operating rotor 224 with the clamping head 246 and placed on the sleeve 112 or the outer turns of the cop 116 (FIG. 11). The first turn of the thread F runs down the spiral around the sleeve 112 and cop 116 until the thread F lies in a horizontal plane including the mouth M (dashed line in FIG. 9). By further rotation of the Operator runner 224, some connection windings V (FIG. 9) are formed in this plane.

The aforementioned distance between the mouth M and the clamping plane is selected such that, if a cop 116 is present at all, these first connection windings V lie below the uppermost turn W of the cop. The working point of the mouth M is therefore below the uppermost point of the ring bank 104 during its traversing movement, so that this working point must be kept outside the movement area of the ring bank 104 (see FIG. 10).

It will be apparent that the first turns V are formed by rotating the operating rotor 224 both with respect to the spindle 102 or sleeve 112 and with respect to the C-shaped holder 222. The thread F is pulled directly from the suction pipe 134 by the rotation of the operating rotor 224. After the formation of only a few turns V, the rope effect between the thread F and the cop 116 becomes so great that a weaker thread F would break between the clamping head 246 and the turns V when the spindle 102 was stationary. In order to avoid this and still be able to form further turns V, the spindle 102 is released from its drive (not shown) during the winding process, so that it can currently be freely rotated, as already mentioned in connection with FIGS. 1 to 5.

In order to achieve a secure connection between the auxiliary thread and the sleeve 112 or cop 116, it is advisable to overcome the first spiral turns. This requires a slight lifting of the winding device 150 in the direction of the upper end E of the sleeve 112 in FIG a second working position (Figure 12). Since the length of the yarn piece between the clamp head 246 and the first connecting windings V ^• can be changed no longer has to the spiral shape of the first winding of this yarn piece to the sleeve 112 and head 116 are lifted.

The mouth part 136 is also moved upwards in order to wind further binding turns B (FIG. 12) on the sleeve 112, these turns B securely binding the aforementioned piece of thread to the sleeve 112. The windings B also serve another purpose, which, however, only becomes clear when a later phase of the process is explained and is therefore only dealt with later in this description. To form these last bindings B, the spindle 102 must still be able to rotate freely and the thread F must remain intact between the bindings formed on the sleeve and the clamping head 246. However, after this second winding phase has been completed, the spindle 102 is braked by suitable means (not shown) while the operator runner 224 continues to run. The thread F is thereby pulled out of the clamping head 246 and forms a free end FA (FIG. 13).

The operating runner 224 is now brought back into its ready position, so that the access opening 240 is restored (FIG. 13). The application of compressed air to the unit 202 (FIG. 7) is now canceled, so that the winding device 150 is withdrawn (FIG. 14). It is now necessary to prepare the attachment unit for threading the auxiliary thread F with the ring traveler 108 (FIG. 15). The various steps of this preparatory process will be described before the reasons for these steps are explained in more detail. During the threading, the angular position of the spindle is held by braking.

As a first step after the device 150 has been withdrawn, the mouth part 136 is moved from its second working position (FIG. 12 and FIG. 14, solid lines) to a third working position on the other side of the spindle 102 and winding device (dashed lines in FIG. 14). A slide 260 carried by the carriage 186 is now moved from a retracted position (FIGS. 9 and 12) to an advanced position (FIGS. 14 and 16 to 19) by a suitable actuating means (for example by a pneumatic piston and cylinder unit, not shown). A V-shaped guide part 262 (FIGS. 9, 12 and 18) engages in the free thread length between the sleeve 112 and the mouth part 136. Slider 260 is advanced so far that the thread length mentioned is deflected by the guide part 262 and finally held in a predetermined position becomes. This position is determined by a suitable end stop (not shown) for the slide 260.

The mouth part 136 is now moved upwards and then brought back onto the first side of the spindle 102 and the winder 150 (FIG. 16). The mouth M is moved downwards so that the thread F runs below the winding device 150 and between the mouth M and the edge of a guide surface FF (FIG. 14) on the uppermost surface of the slide 260 a predetermined inclination upwards (in FIG 11 not visible). The slider 260 is provided with a constriction 261 (FIG. 14) in order to guide the thread on the surface FF. The position of the mouth part 136 is now selected so far away from the ring bench 104 that the thread F lies outside the movement space of the ring 106 (FIG. 16). The winding device ^• 150 is now moved back into its second working position (Figure 17), after which the threading preparation phase is completed.

The reasons for this sequence will be evident from FIGS. 14, 16 and 17 together with FIG. 15. FIG. 15 schematically shows the cop 116, the yarn G during normal spinning and the runner 108, the direction of rotation of the cop being indicated by the arrow R. This direction of rotation is also indicated by an arrow on the spindle 102 in FIG. 14, although the spindle may not actually rotate during the preparation phase. In order to restore the operating conditions indicated in FIG. 15, certain geometric relationships must prevail when threading the auxiliary thread F with the rotor 108.

When looking at the spinning station in question in the direction of arrow L (figure 14,16 and ^'17), has the einzufädelnde yarn length extending from left to right by the slider 260 to the mouth part 136th For this purpose, this thread length must have a slight inclination from above on the slide 260 downward at the mouth 136. This inclination is indicated in FIG. 18 (in this figure a part of the cop 116 has been "cut away" to show the guide head of the slider 260). Furthermore, the runner 108 has to be pushed onto the thread F by moving along the spin ring 106 in a clockwise direction according to FIG. 16. The auxiliary thread length extending between the runner 108 and the mouth part 136 can then be pulled upwards in order to correspond to the position of the thread length G (FIG. 15). The conditions described above depend on the direction of rotation of the spindle 102, which in turn depends on the yarn rotation (S or Z rotation). The ^• described conditions are adjusted for a yarn with an S twist, which corresponds to the products of most spinning mills. When producing yarn with a Z twist, the slider 260 would have to be laid on the other side of the spindle 102 (again in the direction of the arrow L, viewed in FIGS. 9, 11 and 12) and the thread length to be threaded would have to be from the right to the left of the slider 260 extend to the mouth part 136.

In order to produce the conditions already described, the device 150 must in any case be moved into its retracted position, at least in order to enable the orifice part 136 to be laid after the thread F has been brought into contact with the guide part 262 of the slide 260 has been. For the winding it does not matter whether the mouth part 136 is placed to the left or to the right (viewed in the direction of the arrow L) relative to the winding device 150. The position of the clamping point 242 in the circumferential direction of the operating rotor 224 also does not play a major role in this regard. However, the clamping point 242 can preferably be brought as close as possible to the separating means (not shown) for separating the thread between the clamping point and the delivery mechanism 126 (FIG. 6) in order to avoid a long thread end depending on the clamping point.

After the preparation phase is completed (FIG. 17), the switching means 214 is switched to the controller 210 (FIG. 8) and the motor 204 is activated in order to move the slide 186 down the threaded spindle 196 until the sensor 206 has the ring bench 104 "finds". The mouth part 136 is moved accordingly, so that the already prepared conditions are maintained. The sensor 206 scans contactlessly for the ring bank 104.

After the sensor 206 has "found" the ring bank 104, the sensor sends a signal to the controller 210 to keep the motor in continuous operation so that the carriage 186 together with the winding device 150 follows the movements of the ring bank 104. In this case, the clamping plane of the operating rotor 224 is obtained at a predetermined distance S (FIG. 18) above the upward-facing surface of the ring bench 104. In this third working position of the winding device (on the ring bench 104), the second working element (the brush) 244 is held in contact with the upward-facing surface of the ring 106.

The vertical movements of the ring bench 104 are followed without contact as previously indicated and therefore without loading the ring bench drive (not shown). The positioning of the winding device 150 in the X direction (FIG. 6) to ensure that the brush 244 is in contact with the spinning ring 106 is, however, effected by a feeler roller 264 mounted on the device 150. This contact does not stress the ring bench drive.

FIG. 19 shows the last movement of the threading process, the operating runner 224 being rotated again clockwise around the axis P, in order to also move the runner 108 (not visible in FIG. 19) clockwise along the spinning ring 106 along the thread length between the mouth part 136 and the slide 260 to move. As from a comparison of Figures 18 and 19 can be seen, the mouth part 136 must be brought in the direction of the ring bank 104 into the position shown in FIG. 19 and the thread piece to be threaded must be placed close to the spinning ring 106, the inclination α (FIG. 19) being maintained.

Before the last movement indicated in FIG. 19, it must also be ensured that the runner 108 is at a suitable location opposite the spinning ring 106 so that the brush 244 can push it in the desired direction. This is actually preferably the first step of the whole process and is even carried out before the auxiliary thread length is fetched. As already mentioned before, when the robot is patrolling, the start-up device is continuously held along its "working height" along the threaded spindle 196 by the control system shown in FIG. To this end, the sensor 206 senses the upper reversal point of the ring bench movement while the robot is moving and uses it to adjust the position of the slide 186.

When a thread break is detected or after positioning at the spinning station to be operated, the device can be immediately delivered to the spindle 102 in question (in the first working position, FIG. 9) and the carriage 186 can then be moved downwards in order to do this Dock the device onto the ring bench 104 (in the third working position, Figure 18 - as already described for the threading). The operator runner can then be operated to place the runner in a predetermined position (eg position X in FIG. 19), where it will neither interfere with the preparation for threading nor be disturbed thereby. The motor 204 can then be started again in order to uncouple the device from the ring bench and bring it back into the first working position (FIG. 9), so that it can be pulled back into the robot for picking up the auxiliary thread from the delivery point 28. As already indicated by the "control" 212 (FIG. 7), the motor 204 is controlled independently of the position of the ring rail 104 in order to bring the slide, for example, to the lower end of the spindle 196 and thereby in the vicinity of the delivery point 28. As already mentioned, the “working height” (the height of the first working position along the spindle 102) is stored, so that after the auxiliary thread has been picked up, the attachment unit (winding device 150 and handling device 124) can be brought back to the working height immediately. The sequence already described can then be carried out.

The movement of the operating rotor 224 indicated in FIG. 19 encompasses a full revolution of this organ, so that the brush 244 runs over the thread length extending between the sleeve 112 and the slide 260. Contact between the bust 244 and the thread length F should, however, be avoided if possible, since otherwise the thread run could be destroyed. The guide part 262 of the slide 260 is therefore provided with a screen piece 266 (best seen in FIGS. 14 and 16), which in the threading position (FIG. 18) lies directly above a section of the spinning ring 106 and the thread F from the brush 244 during the shields the aforementioned threading revolution of the operating rotor 224.

As mentioned in connection with FIG. 15, the thread F (after the slide 108 has been pushed on) can be moved upwards by the handling device 124. However, the auxiliary thread F remains threaded with the rotor 108 and is pulled out of the suction pipe 134. There is also a thread length between the runner 108 and the cop 116.

The tensile force that is exerted on the auxiliary thread F, however, acts in the opposite direction to the tensile force that is exerted in normal spinning (starting from the cop 116). If the auxiliary thread F now runs in a substantially horizontal position from the runner 108 to the cop 116, the forces exerted by the auxiliary thread F on the runner 108 could under certain circumstances be sufficient to move the runner along the spinning ring 106, in that for the Spinning normal direction (clockwise in Figure 14). However, since the spindle 102 was still stationary at this time, this movement of the rotor would mean pulling thread turns off the bobbin, which for various reasons could lead to a further thread break when attaching.

In order to avoid this, the upper turns when winding (ie the binding turns B, FIG. 12) are formed above the uppermost turns W of the cop 116. The thread length extending from the windings B to the rotor 108 thereby always has an upward slope as seen away from the rotor 108. The of the thread lengths on both sides of the runner on these forces exerted during the further threading phases only partially compensate for one another and give a resultant which raises the runner 108 upwards against the underside of the spinning ring 106 rather than moving the runner along the spinning ring. An unfavorable handling of wound binding indices B is avoided.

It is apparent from the above description that the connection of the auxiliary thread piece to the yarn carrier is finally due to the rotational movement of the one holder in the form of the winding ring with a clamping device around the yarn carrier. As described in detail above, this results in a connection between the auxiliary thread piece and the thread carrier at a desired point in time due to the friction effect. It is obvious that this principle can also be implemented in a different way. The essence of the invention therefore lies in a method for applying an auxiliary thread to a yarn carrier of a spinning machine located at the spinning position, the method being characterized in that an auxiliary thread piece clamped on two sides in holders is placed on the yarn carrier and with one of the holders around the yarn carrier is looped until the auxiliary thread piece is connected to the yarn carrier by friction.

According to the current opinion, this principle can best be achieved if the yarn carrier stands still during the U-loop movement, and is preferably also freely rotatable.

However, it is recognized according to the invention that the standstill of the yarn carrier and / or its free rotational mobility are not necessarily basic requirements for realizing the method according to the invention. For example, it is quite possible to drive the thread carrier separately, during or after the wrap movement, in order to achieve a gentle but secure connection between the auxiliary thread piece and the thread carrier. One can imagine this, for example, in that the game carrier is first uncoupled from the normal drive of the spinning station and then driven by a separate rotary drive, for example by a drive that is located on the operating device and the sleeve or the spindle, for example, with drives a rubber wheel to rotate by friction.

It could also be imagined that the winding ring initially produces a few loose revolutions around the game carrier and that the sleeve and therefore the game carrier is then driven to a separate rotary movement in order to tighten these loose windings and therefore the required friction connection between the To establish auxiliary thread piece and the gaiter. This could be done, for example, in that, at the beginning of the wrap, the special drive for the thread carrier drives the thread carrier at the same rotational speed as that of the winding ring and then changes the rotational speed of the thread carrier relative to the winding ring, preferably accelerates it, in order to tighten the wraps that have taken place and in the correct moment to pull the end of the auxiliary thread piece out of the clamping device or to release it by releasing the clamping device. The separate drive could then be released from the game carrier and the process, as described in detail above, continued until the spinning station produced again.

Claims

35 PATENT CLAIMS

1. A method of applying an auxiliary thread to a yarn carrier of a spinning machine located at the spinning position, characterized in that an auxiliary thread piece (6.1) clamped on two sides in holders (35, 15) is placed on the thread carrier and with one of the holders (35) around it the yarn carrier (40) which is at a standstill but made freely rotatable is looped until the auxiliary thread piece (6.1) entrains the yarn carrier (40) by friction and the yarn carrier (40) set in rotation by entrainment automatically another part of the auxiliary thread (6) wound up against a retaining effect originating from the second holder (15).

2. The method according to claim 1, characterized in that the auxiliary thread piece (6.1) is clamped between a clamping device (35) and an elastically acting retaining device (15), a part of the auxiliary thread piece (6.1) being stored in the retaining device (15) and is then drawn off onto the yarn carrier (40) by the towed yarn carrier (40) except for a remainder remaining in the retaining device (15). -HO -

3. The method according to claim 2, characterized in that a suction effect directed inwards from the mouth is exerted in the retaining device (15).

4. The method according to claim 1, characterized in that the position of the first turn is placed at least in the vicinity of the upper limit of the ring bench stroke.

5. The method according to claim 1, characterized in that a position of the first turn outside the Garnkörperbe¬ area is selected to form a thread reserve on the Garn¬ body.

6. The method according to claim 1, characterized in that after completion of the winding process, the auxiliary thread (6) is separated from the clamping means (35) by a relative movement between a gill means (35) for the first clamped auxiliary thread end (6.2) and the yarn carrier (40) .

7. The method according to claim 6, characterized in that the clamping means (35) for separating the auxiliary thread end (6.2) is opened by activating a controllable actuating element.

8. The method according to claim 6, characterized in that the auxiliary thread end (6.2) from the clamping means (35) is torn off by tensile action. ^• Y4

9; A method according to claim 8, characterized in that the separation of the auxiliary thread end (6.2) leading from the thread carrier (40) to the clamping means (35) takes place by stopping the clamping means (35) and thread carrier (40) in a staggered manner in time, so that a jerk loading on the auxiliary thread end (6.2) arises.

10. The method according to claim 6, characterized in that the auxiliary thread (6) is separated from the clamping means (35) after automatic threading into thread guide elements in the region of the spinning station.

11. The method according to claim 1, characterized in that a spun yarn material deviating yarn quality with a rough surface is used as the auxiliary yarn (6), which ensures continuous cleaning of the yarn guide elements.

12. The method according to claim 1, characterized in that the auxiliary thread piece (6.1) is chosen at most so long that it is completely removed by a subsequent cleaning cut with certainty. - 41-

13. A method for applying an auxiliary wire to a yarn carrier of a spinning machine located at a spinning position, in particular according to one of the preceding claims, for establishing a connection between the auxiliary thread and a yarn spool forming the thread carrier

(for example a cop) or a sleeve forming a yarn carrier in a winding unit which has an iridescent ring bank, characterized in that the uppermost position of the ring bank is sensed at the time the connection is made and the connection is made in the area of the corresponding top winding point on the sleeve becomes.

14. A method according to claim 13, characterized in that connecting turns below the uppermost

Be created on ickelstelle.

15. A method according to claim 13 or 14, characterized gekenn¬ characterized in that connection indices are created above the top winding point.

16. A method according to claim 15, characterized in that the auxiliary thread is guided from the connecting turns above the uppermost winding point to a runner carried by the ring bench and is threaded with the runner.

- ^• * 3 -

17. Operating device or operating robot, in particular for carrying out the method according to one of the preceding claims 1 to 16, with an auxiliary thread delivery mechanism (5) and a retaining device (15) for an auxiliary thread (6), characterized in that a guided movable holder (26) with a rotatably mounted winding ring (27) and with a clamping means (35) attached to the winding ring for the auxiliary thread piece (6.1) are provided, wherein the winding ring can be moved into a position concentric with the thread carrier (40) and in a position Axis of rotation of the sleeve (AA) parallel axis (BB) is rotatably mounted and connected to a controllable rotary drive (34).

18. Operating device according to claim 17, characterized in that the retaining device (15) for the auxiliary thread piece (6.1) from the winding ring (27) can be moved independently.

19. Operating device according to claim 17 or 18, characterized gekenn¬ characterized in that a suction tube for receiving the auxiliary thread start (6.3) with a connecting auxiliary thread piece (6.1) is provided as a retaining device (15).

20. Operating device according to one of claims 17 to 19, characterized in that an open winding ring (27) is provided which has a through opening (29) which is larger than the diameter of the yarn tube (40)

21. Operating device according to one of claims 17 to 19, characterized in that the winding ring (27) is designed as a closed ring and from above over the yarn carrier

(40) in a position concentric to this. -w -

22. Operating device according to claim 19, characterized gekennzeich¬ net that at least one end of the suction tube (15) can be driven to controlled movements and in particular at least partially movable around the clamping means (35) to the auxiliary thread piece (6.1) with the clamping means ( 35) to connect.

23. An operating device for carrying out work on a yarn processing position comprising a spindle, in particular according to one of claims 17 to 22, characterized by means for forming a guide around the spindle axis and means for moving at least one working element of this guide along.

24. An operating device according to claim 3, characterized gekenn¬ characterized in that the means for forming a guide comprises a support section or holder, which by movement in a direction transverse to the spindle axis on the spindle or on one of the spindle worn Kops is zu¬ adjustable.

25. An operating device according to claim 23 or 24, characterized in that the guide comprises a substantially annular raceway which has an opening to allow the delivery of the guide without the guide initially above the top end of the spindle or the cop must be moved.

26. An operating device according to one of claims 23 to 25, characterized in that the means for moving a working element comprises a substantially ring-shaped operating runner or winding ring.

27. An operating device according to claim 25 and claim 26, characterized in that both the career as also the winding ring are C-shaped.

28. An operating device according to claim 27, characterized in that means are provided to determine the position of the operating runner in the circumferential direction relative to its career, so that when the device is delivered to the spindle, the openings of the two C-shaped parts are aligned with one another .

29. An operating device according to one of claims 26 to 28, characterized in that the working element carried by the operating rotor comprises a clamping device for dragging a thread and / or an element for striping a spinning ring.

30. An operating device according to one of claims 24 to 29, characterized in that the carrier part comprises a drive means for rotating the operating rotor about the axis of the track, which with delivery to the spindle. the spindle axis can be approximately aligned.

31. An operating device according to claim 27 and claim 30, characterized in that the drive means comprises a toothed ring and a transmission means which transmits the rotation of the toothed ring to the operating rotor.

32. An operating device according to claim 31, characterized in that the transmission means comprises a plurality of transmission elements, so that at least one element remains connected to the ring and the operating rotor when an element is opposite the opening a C-shaped Bf .dienungslaufers stands and the rotation of the drive ring can therefore no longer be transmitted. «Φ -

33. An operating device according to one of claims 26 to 32, characterized in that the holder has a controllable actuating element (eg a rocker arm) in order to actuate a working element carried by the operating rotor (eg opening or closing a clamping device), if the operator runner lies in a predetermined position in relation to the carrier section.

34. An operating device, in particular according to one of the preceding claims 17 to 33, for establishing a connection between an auxiliary thread and a thread spool (for example a cop) or a sleeve in a winding unit, which has an oscillating ring bank by means of scanning the uppermost position of the ring bench at the time the connection is established and means for establishing the connection in the region of the corresponding top winding point on the sleeve.

35. A device according to claim 34, characterized gekennzeich¬ net that means are provided for scanning the current position of the ring bench and means are provided for guiding the thread from said connection to the runner carried by the ring bench.

36. A method for applying an auxiliary thread to a yarn carrier of a spinning machine located at the spinning position, characterized in that a piece of auxiliary thread (6.1) clamped in guides (35, 15) on both sides is placed on the thread holder and with one of the holders (35) around it preferably idle yarn carrier (40) is looped until the auxiliary thread piece (6.1) is connected to the thread carrier (40) by friction. -v?

37. Method for applying an auxiliary thread to a yarn carrier of a spinning machine located at the spinning position, characterized in that an auxiliary thread piece (6.1) clamped on two sides in holders (35, 15) is placed on the thread holder and with one of the holders (35) around it Thread carrier (40) is looped and that the yarn carrier is driven during or after the wrap with the auxiliary thread piece to a rotational movement, possibly different rotational movement with respect to the holder, in order to cancel the initially loose wrap with the auxiliary thread and to tighten the auxiliary thread piece on the thread carrier.