JPH03505240A - A method of operating a spinning machine and a service robot for carrying out the method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The law of - service job/ropo for The present invention provides a method for producing spinning material that is drawn out from a draft mechanism when yarn breakage occurs at a spinning position. Yarn breakage repair service to ensure that the material is re-wound onto the spinneret yarn at the spinning position. It concerns the operating method of spinning machines using screw robots, especially ring spinning machines. Ru.

The invention also provides a service robot particularly suitable for carrying out the method, and a service robot that is particularly suitable for carrying out the method. A spinning machine equipped with a robot and a spinning machine that has many advantages when used in conjunction with them. This relates to a stop device.

In the traditional manual splicing method, a few millimeters from the end of a single spun yarn to be spliced Or, the worker grabs it by hand and inserts it into the suction pipe a few centimeters away. Sucking The spun yarn is brought to the center by the air flow in the coop tube and comes out from the draft mechanism. It joins the flow of fiber bundles. The movement of the thumb and index finger requires a high degree of skill, The operator applies a twist to the end of the yarn to join the flow of fiber bundles to the end of the spun yarn. This time spinning When the end of the spun yarn is released, the heating by the rolling weight has already started, so the spinning process starts. will be started. The flowing fiber bundle is wound up one after another and expands rapidly, causing the draft mechanism The clamping position of the liberi roller is reached, and the actual yarn splicing process begins. Top end.

Naturally, this manual method is not suitable for coordinating the thread ends and the fiber bundle flow. Does not require much attention. Rather, what is more important is the heating operation and the release operation of the spun yarn. The yarn splicing point protrudes from the suction pipe to the clamp position of the draft mechanism. It is something you end up doing. The joints where the poem is made have many problems with spinning technology (quite a bit). It is certain.

When piecing by hand, use your thumb and forefinger to pinch the end of the thread just a little. There is also a method. In this case, the operator should touch the delivery roller of the draft mechanism. The end of the thread is brought into the filter and brought into direct contact with the flowing fibers. meanwhile , the fiber flow is temporarily interrupted. Rub your thumb and forefinger together to make a spun yarn. Add the first twist and twist the fibers that have stopped flowing. When you release the thread end, it just The spinning process is then restarted. This work requires great care and skill. Ru. In order to successfully splice the yarn, it is important to accurately splice the yarn end in your hand and the flowing fiber bundle. have to be put together. However, the decisive advantage of this method is that the yarn splicing position is It has the shape of a ball, so no matter how simple the structure of the thread cleaner is, it will not work. The point is that the position can be detected without fail. Almost all textile mills follow this rule. It is because of this advantage that the traditional manual splicing method is taught and practiced. be.

There is also the traditional manual method of joining threads, also known as ``American-style joining''. There is a so-called ``rear placement method,'' in which workers can use the cleaning equipment on the spot as needed. After removing the growler, move the yarn end upwards to the front top row of the draft mechanism. Move it past the side of the roller. The cleaning roller places the thread backwards. The worker must completely remove this as it will be a hindrance during the work. after that The operator guides the thread horizontally under the trap roller. At this time, the operator should firmly hold the end of the thread. While holding this, run the thread while sending it across the direction in which the fiber bundle is running. so that the yarn becomes entangled with the flow of the fiber bundle and the fiber bundle is wound up. this species Manual splicing takes a little more time, but it improves the flow of spun yarn and fibers. is necessary because the location where the be successful.

This relatively simple and reliable method of hand piecing is rarely used in practice. In fact, it is condemned and banned in textile mills. The reason First and foremost, the cross-sectional area doubles over a length of several centimeters to several tens of centimeters. The splicing position of the spun yarn becomes a hindrance to the subsequent processing of the spun yarn, and many ordinary thread cleaners, especially thread cleaners with simple mechanical structure, whose position is reliable. This is because detection is difficult. In addition, the worker may also carry a cleaning roller. The disadvantage is that it has to be lifted up and removed.

Automatic splicing that connects the thread ends to be spliced to the fiber flow on the delivery roller The device is already known. At this time, the thread end is the edge of the end of the movable arm (e.g. US PS 3.128.590) or auxiliary rollers (e.g. West German PS Rain 17852 No. 36, West German Patent Application Publication No. 3209814, West German Patent Application Publication No. 3 728333, West German Patent Application Publication No. 3730373), It is held close to this deflection position. formed by edges or auxiliary rollers The deflection position is in contact with the delivery roller and the yarn end merges with the fiber stream. spin When the glue added by the dollar is wound into the first fiber bundle, the spliced yarn ends are released. be done. After that, the thread splicing point is from the contact point of the splicing thread to the clamping point of the draft mechanism. Jump to.

This known automatic splicing device replaces the manual splicing in conventional spinning mills. Although it is possible to achieve a very tight thread splicing, the success rate is relatively low. The reason is First of all, a draft mechanism is used to control the joining of yarn ends and fiber flow. It is extremely difficult to precisely determine the course of the fiber fleece at the point where it emerges from the It's because it's funny. In addition, when winding up the fiber bundle for the first time, there is a The twist is sometimes applied in a dangerous manner by the spindle. It is impossible for a machine to actually imitate the twist provided by fingers and index fingers.

Another disadvantage of this automatic splicing device is that the temporary The main point is that the splicing point is transferred to the clamping point at the exit of the draft mechanism.

It has a fast payout speed of at least 20 meters per minute, which is customary today. Although many proposals have been made to improve the splicing process for staple fibers such as cotton, However, from the above points, automatic equipment has high reproducibility and excellent reliability in the yarn splicing process. It was impossible to achieve virility.

Although not entirely satisfactory, suggestions for improvement so far include the following:

− At the same time the flow of the fibers is concentrated in the center by means of a fork, the flow of the splicing yarn and fibers is How to join. (For example, see West German Patent Application Publication No. 1785236) - A method for precisely monitoring and controlling spindle acceleration when necessary in conjunction with the start of the yarn splicing process (For example, see West German Patent Application Publication No. 3730373) - At the moment of splicing, the amount of movement of the splicing arm across the running yarn is kept constant. A method of program control limited to the amount (e.g. West German Patent Application Publication No. 3209) (Refer to No. 814) - In order to change the direction of the thread in contact with the delivery roller, a substitute is added to the fixed edge. How to use a wari roller. (For example, see West German PS No. 1785236) - Traverse the roving to increase the possibility of convergence of splicing yarn and fiber flow. A method of reducing the fiber flow process and limiting the location where the fibers flow. (Example: West German patent (See Application Publication No. 3209814) The above methods have proven to be unsatisfactory in practice as a whole. That's it The main causes are the intersection, which varies depending on the spinning position, and the irregular splicing process.

The object of the invention is to provide maximum automation of the operation of spinning machines, especially ring spinning machines. Therefore, it should be simple and highly reliable, and should always be reliable and have excellent reproducibility. Establish an automatic splicing process that executes the spliced joints, and at the same time clearly identifies the spliced area. to ensure that the The aim is to further develop the method and spinning robot. For some other reason, thread If splicing is not possible, there is an easy way to introduce the spinning machine into the spinning machine using a method that does not cause any problems. Interrupting the supply of textile raw materials by law and establishing conditions for restricting operation. is also an object of the invention.

In order to meet the above objectives, the method according to the present invention uses service robot means. First, one end of the auxiliary yarn is automatically spliced onto the spinning tube yarn without splicing the broken yarn end. After winding, the other end of the auxiliary thread is passed through the two delivery rollers of the draft mechanism. passing at least one of the the other end of this auxiliary thread in the direction of the longitudinal axis of the roller. The spider enters the gap between the rollers and moves it to the position where it gets caught up in the rollers, and the delivery begins. A 0-strand spinning method in which the raw material fibers are fed out from a pair of rollers and spliced to the end of the yarn. The features of the service robot according to the present invention are described in claim 20.

Although the method according to the invention uses only a mechanical device of simple construction, Excellent reproducibility and excellent reproducibility thanks to the fully automatic method known as the so-called American style thread splicing. An automatic splicing process with a high success rate is realized and the thread cleaner used Regardless of the detection sensitivity of becomes possible to remove. In piecing, it is always desirable to have a certain length. A new auxiliary yarn is used, and the yarn end is simply wound onto the spinning tube yarn, and the broken yarn is not replaced. Since they are not brought together, the threads remain interrupted. This yarn interruption occurs in the next winding process. Detected. The detection sensitivity of the thread cleaner used in this case has an important meaning. not present. Yarn breakage that occurs at a specific spinning position remains as it is on each spinning tube system. Since it remains as a thread breakage, thread splicing must be carried out in the thread winding machine in the next process. stomach.

At today's customary yarn breakage rate, every 100 spindles and every 3 hours of spinneret yarn operation time. The rate of yarn breakage is one, and this is due to yarn splicing due to spinning tube yarn exchange. This corresponds to 33 operations and 1 yarn splicing operation due to thread breakage. Therefore, thread cutting In reality, it is difficult to imagine that the load on the thread winding machine would increase due to the thread splicing work caused by this. , which is of no great importance to the thread winding machine. The invention is important By the method according to the The thick part of the thread is a controlled thread that has the precise reproducibility characteristics of an automatic process. The point is that it can be replaced by a joint part. The solution of the present invention is the so-called American style thread joining. It also breaks down long-standing prejudices among experts about In principle, the present invention It can also be applied to splicing using fiber fleece of yarn unwound from spun tube yarn. For the above reasons, the rear arrangement method of the present invention requires the use of an auxiliary thread, that is, another thread. It is desirable to

The end of the yarn to be spliced is placed behind the delivery roller by a thin plate-shaped or rod-shaped yarn guide. It is preferable that it be placed. At this time, the thread guide is first placed on the upper delivery roller, Push it under the cleaning roller located above the front top roller. The thread end is removed with the cleaning roller raised. The roller moves horizontally along the longitudinal axis of the roller while elastically holding it. The ends of the thread are done by hand. Rather than in the direction toward the rollers as when splicing twisted threads, it is rather directed along the longitudinal axis of the rollers. Move laterally along. Make sure the thread guide is completely pushed under the cleaning roller. If the end of the thread is moved, the end of the thread cannot be guided any further, i.e. the end of the thread cannot move any further. Can not. While moving parallel to the rollers, the thread end is held against the pre-set rollers. It is held flexibly while maintaining a distance from the rollers, and is pulled into the roller gap without any problem. can be done.

It is desirable that the auxiliary thread be of a predetermined length, so that can be detected and removed reliably.

The spinning raw material, that is, the roving, is fed out from the draft mechanism. To even out the wear condition of the selectively driven belt of the roller and draft mechanism , and usually performs a traverse motion. In this case, the other end of the auxiliary thread is The spinning material moves at least a distance approximately equivalent to the traverse stroke of the spinning material in the longitudinal axis direction of the spinning material. Ru. This allows the auxiliary yarn to be used as a spinning material that is fed out from the draft mechanism during the yarn splicing process. The spinning material will surely merge with the spinning material, and the spinning material will be transferred to the auxiliary yarn. The end of the auxiliary thread is Then, continue in the opposite direction to at least the substantially central position of the pair of delivery rollers. It is preferable to move by. As a result, the auxiliary thread and the stretched roving form a The base of the spinning triangle can be made smaller.

For regular or coarse spinning materials, auxiliary threads that are thinner and preferably stronger than the regular piecing threads are used. It is advantageous to use Thin auxiliary thread has a small mass, so by using it In particular, the swelling of the yarn can be kept small and the tension of the yarn during the splicing process can be reduced. It has the advantage of

In the case of ultra-fine spinning materials, the yarn is thicker than normal splicing yarn to ensure reliable splicing. Auxiliary threads may be used.

Since there is only one spindle drive, the spindle speed is lower than the normal operating speed. It is particularly advantageous that the other end of the auxiliary yarn can be spliced to the spinning material at a rolling speed.

By lowering the rotation speed, the spinning tension during the splicing process can be reduced. .

In a particularly preferred variant of an embodiment of the invention, the other end of the auxiliary thread has a device that captures the auxiliary thread. A free roller having a length at least equal to the outer circumference of a pair of pull-out rollers. It is at the end.

This allows the other end of the auxiliary yarn to be inserted into the gap between the two delivery rollers from the side. By performing the insertion operation relatively slowly, the stretched spinning material, that is, the stretched The roving can be run relatively slowly over the auxiliary thread.

In an alternative variant of the present invention, an auxiliary roller is provided below the thread guide device of the service robot. - has been placed. The auxiliary roller is pressed against the delivery roller. , and the thread guiding device is arranged to guide the auxiliary roller at least in the direction of the longitudinal axis of the spinning material. It is arranged so that the rubber stroke can be branched. Extreme advantages of this arrangement In contrast to the proposal of West German Patent Application Publication No. 3209814, There is no need to change the traverse route.

The roving stop device according to claims 35 to 42 is characterized in that the roving stop device according to claims 35 to 42 It is extremely advantageous to use it with traffic machines and service robots.

This device according to the invention comprises a rod with a working head for separating rovings. This is a roving separation device consisting of a curler lever, which separates fiber raw materials when yarn breakage occurs. It is used in spinning machines to interrupt the supply.

The use of rocker levers in devices of this type has been known for some time and is Performing predefined service tasks on dynamic spinning lines, especially at various spinning positions There are many advantages to using it with service robots. Rockerle The bar is relatively simple and does not require precise movement of the thread guiding element extending from the robot. You can simply operate it. For this reason, the rocker lever must be placed at a dead position within the device. It is possible to move between two stable positions, namely the standby position and the working position, separated by It is arranged so that This rocker lever moves from dead center to either side due to its own weight. It is designed to collapse into a stable position, allowing you to start and perform roving separation operations. There is no need to equip auxiliary elements for adjustment such as springs or electromagnets.

Despite the known advantages of these prior art, such ng separation equipment has not yet been put into widespread practical use. A lot of different work has been done so far Although principles have been proposed, there is still no satisfactory solution for the correct shape of the working head. This is because it has not been found. For example, in the separator itself (with the cooperation of other elements), It is known to provide a separation function by means such as a shear device (in the US). (See National PS No. 3751896). Also, roving separation equipment and conveyance equipment (e.g. The roving is separated by pulling the roving during the conveyance operation (if it is a draft mechanism). It is also known to simply hold the roving in place with a device. this Regarding the method, the method of pressing the carding element against the roving (e.g. USPS No. 349 8039), dropping the plug into the guide trumpet or ring. Methods (e.g. US No. 1103329, Swiss No. 619740, West German PS No. 26 07882), method of holding roving between clamping surfaces (e.g. Japanese Patent Application Publication No. 2946031) is known.

The roving separation device according to the invention employs a rocker lever with a clamp head. I am using it. The rocker lever moves from the standby position through the dead center to the operating position, or can be rotated about an axis in the opposite direction. In addition, the roving separator also has guides. There is a guide guiding the roving to the top of the clamping surface adjacent to the guide. Kula When tilting the pump lever from the dead center towards the working position, the clamp head should not make contact with the guide. The rocker lever passes through this without moving and then rubs against the clamp surface, but at that time the rocker lever The distance between the clamping surface and the clamp head becomes smaller as you approach the operating position. The guide and clamping surface are positioned relative to the axis such that Low When no bing is present, the clamp head is at a predetermined angle to the axis of rotation. It is also possible to arrange it so that it is in contact with the clamping surface at a certain angle.

A roving separator that acts as a carrier for both the rocker lever and the guide. The device can be assembled into a spinning machine as one unit by equipping a part of the carrier with It can be attached or removed.

The guide can be provided with an opening for threading.

In addition, the thread passing surface that connects to the clamp surface and the roving straying sideways from the thread passing surface. There may also be two sides to prevent this from occurring. The passage surface and sides are almost U-shaped. It can be provided as an element, in which case the U-shaped open end forms an opening for threading. Ru. In addition, it limits the freedom of movement of the roving towards the threading opening. Another guide element may also be provided.

Other preferred variants of the invention are explained in the claims.

Hereinafter, the present invention will be explained in more detail with reference to embodiments and drawings showing the embodiments. Ru.

Figure 1 Front schematic diagram of part of a ring spinning machine equipped with a service robot Figure 2 Schematic cross-sectional view of the service robot shown in Figure 1 Figure 3 Cleaning Draft mechanism and service robot thread plan with rollers lifted Schematic cross-sectional diagram of internal elements Figure 4 Top view of the arrangement shown in Figure 3 Figure 5 Figure 3 showing the normal spinning state A greatly simplified diagram Figure 6: A similar diagram to Figure 5 showing the yarn splicing process Figure 7: Integrated yarn break 3 of a variant of the invention with a thin plate having a key as thread guiding element; FIG. Figure 8 The first stage of the splicing process for the deformed body of Figure 7 Figure 9 The next stage of the splicing process Top view of the deformed body of FIG. 7 showing the surface FIG. 10 Similar to FIG. 3 of another variant of the present invention with one additional auxiliary roller drawing Fig. 11 - Fig. 3 of yet another variant with a thread clamp instead of a thread brake similar drawings Figure 12: When using the auxiliary thread fed out from the bobbin, it has an integrated thread brake. Similar drawings to Figure 3 of the embodiment with a thin plate Figures 13 and 14 with auxiliary rollers Drawings similar to FIGS. 3 and 4 of another embodiment with one additional feature Figure 15 Schematic side view of the roving separation device according to the present invention Figure 16 Figure 15 A drawing of the part of the roving separation device excluding the rocker lever, seen in the direction of the arrow ■. Figure 17: Same part viewed in the direction of arrow III (enlarged) Figure 18 Figure 15 Enlarged side view of other parts of the roving separator Figure 19: Also functions as a carrier when assembling the separation device main body to the spinning machine. Side view similar to FIG. 15 of the variant with another thread guiding element Although only a part of the ring spinning machine 10 is shown in FIG. There are a plurality of spinning positions 12. Spindle 14, ring traveler 20, thread guide 2 2. Draft mechanism 24, funnel-shaped trough for spinning raw material, ie, roving 74 The berth guide 26 and the roving pobbin 28 that feeds the roving are each The spinning station 12 is connected to the spinning station 12 of

Spindle 14 is rotatably journaled within beam 30. In the drawing Although only shown schematically, each spindle 14 includes a brake flange 100. are fixedly connected so that they can rotate.

A belt 32 is provided for driving a pair of spindles 14 adjacent to each other. , this belt is driven by a drive shaft 138 (see also FIG. 2).

The ring traveler 20 includes a ring rail 36 that can be displaced parallel to the spindle axis. It runs on a spinning ring 34 located above.

A yarn package or spun tube yarn 18 is formed on the shaft sleeve 16 and is attached to the shaft sleeve 16. The tab 16 is pressed against the top of the spindle.

As shown in detail in FIGS. 2 through 6, the draft mechanism 24 includes a pair of recesses. There are rollers 38 and 40 and a pair of delivery rollers 42 and 44. downward pull The loading roller 38 and the lower delivery roller 42 have two drive shafts that extend through them. 140.142, respectively.

The upper retraction roller 40 and the delivery roller of the two adjacent draft mechanisms 24 respectively The reroller 44 is mounted on a common carrier 46 placed between the two draft mechanisms. It is rotatably supported in a bearing.

The carrier 46 is pivoted upward for adjustment and cleaning (e.g. 3 and 4), then the lower retraction roller 38 and the lower delivery roller It is possible to push it down to -40.

Around the retraction rollers 38 and 40 of each draft mechanism 24 are bells) 50, 52 is hung, and each belt is hung on triangular wedges 56 and 58. (For example, see Figure 3).

Each carrier 46 is provided with an elongated vertical groove 60 on its side, in which a clear A shaft 64 holding the end of the cleaning roller 54 is fitted therein.

In this structure, the pair of cleaning rollers 54 are connected to two adjacent cleaning rollers 54, respectively. It is arranged on a common shaft 64 between the carriers 54, with both ends of the shaft in vertical grooves 60. It's settled. The cleaning roller 54 becomes the front top roller due to its own weight. It is located above -44. Carry of each front top roller-44 The side surface far from the ear 46 is chamfered into a truncated conical shape 66 (for example, see Fig. 4). ). In addition, the lower delivery roller 42 has a regular cylindrical shape, and has a front top row. It extends further to both sides than the full length of the collar 44. In the schematic diagram of Figure 4, Freon The lower delivery roller 42, which cooperates with the front top roller 44, The diameter is shown to be larger than the roller, but this is for convenience only and does not apply in practice. In reality, the diameter is not large.

In FIG. 1, traverse guide 26 is located within traverse beam 68.

This traverse beam 68 periodically moves back and forth through a traverse stroke 70. . The traverse stroke 70 is based on the width of the belts (52, 50) and the front top roller 44. is smaller than the total length of Each roving bobbin 28 is attached to the holder 7 It is fixed at 2. During operation, the spinning material, that is, the roving, is passed through the draft mechanism 24. is pulled out through each traverse guide 26 and inside the draft mechanism 24. is enlarged to form the desired draft. This is the lower delivery roller 42. This is achieved by the circumferential speed being faster than the circumferential speed of the downward retraction roller 38 (see also Figure 3). reference). The stretched roving 74 is rotated at high speed by the spindle 14. The ring traveler 20 is pulled out from a pair of liberi rollers 42 and 44 and rotates. The thread is given a paste and becomes the thread 76. Although not shown, each thread monitor can be connected to the spinning station 12 of. Yarn 76 breaks at individual spinning position 12 In this case, the stretched roving 74 is It is sucked out by a suction pipe 78 having a suction port nearby (for example, see Fig. 3). .

The ring spinning machine 10 also includes a service robot 82 (see Figures 1 and 2 for details). There is a The robot 82 has wheels 84 and a motor (not shown in the drawing). ) can be moved along the ring spinning frame 10 on rails 86. This service The robot 82 is first and foremost equipped with an automatic succession unit 136, which The details will be explained below along with the overall structure of the service robot.

The service robot 82 having the automatic thread splicing unit 136 is equipped with a sensor 88. It is being Sensor 88 responds to marks 144 on beam 30, for example. and a service robot 82 for the spinning position 12 that requires servicing, i.e. This allows accurate positioning of the automatic yarn splicing unit 136. Thread breakage occurs Services for spinning position 12 where services such as yarn splicing are required When the positioning of the robot 82 is completed, the service robot 82, that is, the automatic thread The spindle 14 in the spinning position 12 is stopped by the braking means 90 of the splicing unit 136. The brakes are applied.

The brake 90 has two brake jaws 92 that are pivotable relative to each other and are spring-loaded. 94 is held in the rest position pushed up against the protrusion 96, and the electromagnet 9 8 is pushed down away from projection 96 to brake the spindle. braking position The brake lining 143 attached to the brake jaw 92 spins By sandwiching both sides of the brake flange 100 of the spindle 14, The brakes are applied. At this time, the belt 32 is fixedly connected to the spindle 14. While slipping on the belt disc 146 rotating with the spindle It continues to rotate (see Figure 2 for details).

As shown in detail in FIG. 2, the service robot 82 or automatic splicer The unit 136 has an auxiliary yarn supply device, namely an auxiliary yarn supply spool 104, which When the auxiliary yarn 102 is pulled out from this by a roller 148 or the like, the automatic yarn splicing unit In addition to the knit 136, one end 106 of the auxiliary yarn is wound onto the spinning tube yarn at the spinning position 12. A means for passing the auxiliary system through the ring traveler 20 and the thread guide 22 at the same time as attaching it. (No drawing shown).

The automatic splicing unit 136 further includes a yarn storage device and a yarn hole. There is a suction pipe 110, and the suction pipe 1100 port 112 also functions as a thread guide element. are doing.

The suction pipe 110 is connected to a suction fan 116 via a hose 140, and -118. Suction pipe 110 and hose 1 connected thereto 14 has a mechanism for receiving the other end 108 of the auxiliary yarn that is far from the spinning tube yarn. There is ability.

The hole 118 that fixes the suction pipe 110 is attached to the vertical shaft on the carriage 120. It is supported so that it can rotate about a support shaft 122.

The pivoting motion of the hole goo 118, that is, the pivoting motion of the suction pipe 110, is caused by the gear 126 It is controlled by a servo motor 124 via a servo motor 124.

Carriage 120 is pivoted for horizontal movement over second carriage 128. It is accepted. The stroke of the carriage 120 during movement is controlled by the second servo motor 13. Controlled by 0.

The second carriage 128 is connected to a service robot, that is, an automatic splicing unit 136. It can move vertically on a track inside the case. The stroke of the second carriage 128 is It is controlled by a third servo motor 132.

Servo motor 124.130.132 is a programmable control unit It is controlled by an electronic control unit 134.

This electronic control unit 134 controls the mouth 112 of the suction pipe 110 according to a program. to move the 3D coordinates.

The operating method of the ring spinning machine 10 explained above is as follows, and will be explained with an example. If yarn breakage occurs somewhere in the spinning position 12, the automatic yarn splicing unit 136 is activated. A service robot 82 having a robot moves to its spinning position 12. Next is the service robot. Approximately 1.5 meters of the auxiliary yarn 102 is pulled out from the auxiliary yarn supply spool 104 of the Ru. One end 106 of the auxiliary yarn is placed on the spinning tube yarn 18 of the spindle 14 at the spinning position. It can be wrapped around 2.3 times. After that, the auxiliary thread 102 is transferred to the ring traveler 20, and then the thread Pass through guide 22. Threading is explained, for example, in West German PS No. 1785286. It is done in a certain way.

The other end 108 of the auxiliary thread 102 is sucked into the suction tube 110.

The suction pipe 110 functions as a thread hole, and on that day 112 is used for automatic line splicing work. During this time, it functions as a thread guiding element.

The suction pipe 110 and the hose 1i4 attached to it are The design can be such that a predetermined length can be stored. of this arrangement At this time, a corresponding sensor is installed at the end of the hose 114 connected to the suction fan 1i6. It is possible to connect.

In addition, there is also a cutting device that cuts a certain amount of auxiliary yarn sent from the auxiliary yarn supply device to an appropriate length. (not shown).

The above operation is performed by the operation of a pair of rollers, that is, the feeding mechanism 148, etc. The specific position of suction pipe 1] 0, that is, the mouth 112 of the suction pipe is near the pair of rollers 1480 is started at a specific position. in the suction pipe 110 or hose 114 When the length of the auxiliary yarn reaches the desired amount, for example, the length of the auxiliary yarn entering the suction tube 110 is With a suction pipe, the end 108 is in the lower or rear part of the hose 114. When the yarn sensor (not shown in the drawing), which functions as a yarn storage device, is reached, the roller The feeding operation of the pair 148 is stopped by the electronic control unit 134. after that In the thread splicing process, this auxiliary thread with a predetermined length is used to complete the work. It is done. This allows better planning in advance for various work processes. The control program also improves the reliability of the work.

The elongated roving 74 coming out from the pair of delivery rollers 42 and 44 is supplemented. In order to splice the auxiliary yarn 102, first place the suction pipe 110 in the position shown in FIG. 3 and 4, passing the side of the front top roller 44. Enter the first device A shown in the figure.

At this time, one side of the cleaning roller 54 is lifted by the suction pipe 110. position at a slight incline. At position A, the mouth 112 of the suction pipe 110 is The auxiliary yarn 102, which is stretched taut between the opening 112 and the yarn guide 22, is pulled out by the pull-out roller. It is placed in such a position that it makes perfect contact with the lower delivery roller 42 that forms the In the side view of FIG. 3, the front top roller 44 is chamfered into a truncated cone. It is located behind the vertical plane containing the axis of the curved portion 66 (see FIG. 4 for details).

To actually start the splicing process, the suction pipe 110 is connected to the command of the control unit 134. It rotates by means of a servo motor 124 that receives commands. At this time, the auxiliary thread 102 , on the edge of the end of the front top roller 44, which consists of a part of the roller and a chamfered part 66. It is guided and drawn into the roller gap created between the delivery rollers 42 and 44. .

The suction pipe 1100 port 112 is located just before the auxiliary thread 102 is pinched, that is, when the auxiliary thread is When the end 108 is in a position just before being drawn into the gap between the delivery rollers, the brake 90 (see FIG. 2) is released. The auxiliary thread is created by the tension of this custom-made thread. drawn between the rollers. The rotational speed of the spindle at this point is normally The rotation speed may be slower than the rotation speed during rotation.

The mouth 112 of the suction pipe 110 then continues laterally through a traverse stroke 70 (the (see Figure 1) and enters position B (see Figure 4). During this time, the warp of the auxiliary thread 102 The path is a stretched roving 7 pulled out by delivery rollers 42 and 44. It always intersects with passage 4. Roving depends on the position taken by the traverse guide 26. The auxiliary thread intersects with the roving, regardless of its position at the time. stop The rovings 74 stretched by the rotating auxiliary threads are securely twisted together. Both are pulled out as a single thread.

As shown in FIG. 4, the mouth 112 of the suction tube 110 is then further moved to the spinning position. Turn WC+- until it is almost on the plane of symmetry. As a result, the auxiliary yarn 102 and the stretched The maximum base of the spinning triangle formed by the rovings 74 can be made smaller.

The length of one auxiliary thread sucked into the suction pipe 110 and hose 114 is It may be longer than the outer circumference of the top roller-44 or the lower delivery roller. This allows the lateral movement of the mouth 112 of the suction pipe 110 between positions A and B to be compared. The auxiliary thread 102 is stretched slowly, and the stretched auxiliary thread 102 is You can run slowly on the parking 74.

For this purpose, an example of a method for holding or guiding the auxiliary yarn during the piecing process is shown in Section 6. Also shown in the figure. Figure 6 functions as a thread guide element, and also serves as a clamp and thread breaker. This diagram schematically shows the mouth 110 of the suction pipe, which can be replaced with a key or the like. Ru.

Figure 6 shows a simplified diagram of the draft mechanism and the thread path during yarn splicing work, while Figure 5 Here, the yarn path before and after the yarn splicing operation is shown in a simplified diagram.

7 and 9 show an integral thread brake 150 and a thin plate 110. FIG. Thread piecing work The parts of the draft mechanism that are relevant to this work have the same reference numbers as before.

As a preparation process for thread splicing, the splicing thread 102 such as an auxiliary thread is used as an example here. It is guided by a thread holder in the form of a plate 110. In Figure 7 The thin plate 110 belongs to the splicing device and is located at the lower delivery row at the outlet of the draft mechanism. Operating range of roller 42, front I/tub roller 44, and cleaning roller 54 located in the area. For example, the splicing device is installed along the ring rail of a ring spinning machine. It is movable. The automatic thread splicing unit responds to signals such as repairing broken threads and splicing threads. Accordingly, it automatically positions itself at the corresponding spinning position. The thread splicing device is a service center. It can also be part of a bot. Seamed into fiber fleece or roving 74 In the example of the drawing, the connecting thread 102 is first applied to the thread brake 150 on the thin plate 110. An important feature is that the yarn end 108 is retained by at least the delivery roller. The length corresponding to the outer circumference of -42 is free.

As shown in FIG. 8, the thin plate 110 is 54, past the front top roller 44 and push it to the side. be caught. During this time, the thin plate 110 moves the cleaning roller 54 upward by the required amount. let

There is no need to remove cleaning roller 54.

In the second aspect shown in FIG. 9, the thin plate 110 is attached to the front top roller 4, and against the resistance of the thread brake 150, the connecting thread 102 roller 42. The splicing yarn 102 is fiber-free as soon as it is pulled out. It is connected to the bus 74.

With this method, the fiber fleece 74 occupies the traverse area with surprising certainty. Thread splicing is carried out regardless of the position at that moment. Therefore, the movement of the thin plate is controlled. The plate is pivoted in the simplest manner until it hits the fixing means 152 (see Figure 9) that can be done.

In another solution of the invention shown in FIG. 10, the auxiliary roller 154 is It is located between the reroller 42 and the front top roller 44, and is located between the reroller 42 and the front top roller 44. It is pressed against the roller 42 by a splicing device. Thin plate with free thread ends 110 is the upper region of the auxiliary roller 154 according to the embodiment shown in FIG. It is guided in close proximity to the line of contact with the front top roller 44. splicing thread 10 2 is pulled by the thread brake 150 when being retracted. The joining thread is also a trabber Move in any direction within the range corresponding to the stroke. These two things determine whether thread splicing is successful or not. Determined by the behavior of In this regard, the method of the present invention is similar to the above-mentioned West German No. 17852. This is fundamentally different from the proposal in No. 36. In this case, the auxiliary thread 102 is the one mentioned above. Since the fiber fleece 74 passes diagonally over the auxiliary roller 154 in the The ID member is no longer necessary.

In the embodiment shown in FIG. 11, a thread clamp 156 is provided instead of the thread brake described above. The end 158 of the connecting thread 102 is held securely. This thread clamp 156 is made movable in contrast to the prior art, with a pivotable lever. -160, i.e. guided by means such as horizontal guides. Thread clamp 156 applies tension to the yarn end 158 corresponding to the tension of the yarn brake. Thread clamp 156 Toward the area between the front top roller 44 and the cleaning roller 54 At the maximum movement position, the thread clamp 156 automatically opens to remove the splicing thread. Release end 158 of 102.

In the embodiment shown in FIG. It is sent out from the supply spool 104 in the container. The auxiliary thread 102 is controlled by the thread brake 150. tension is applied. A thread cutter 162 connected to the thread brake 102 cuts the thread. When the amount necessary for splicing is fed out, the splicing thread 102 is cut. Figure 7, Figure 8, The related parts of the draft mechanism corresponding to the draft mechanism shown in Figure 10 are They have the same reference numbers.

FIGS. 13 and 14 show a modified version of the service robot 82 of the present invention. Another auxiliary roller 154 is used for splicing. Automatic thread splicer Service robot 82 with knit 136 is constructed in the same manner as described above. has been completed. However, this robot has other carriers 166, Beari moving block 164 horizontally along carriage 120. Supplementary The auxiliary roller 154 is pivoted at the free end of the carrier 166 to allow free rotation. It is accepted. The auxiliary roller 154 has a wider width than the delivery roller 42, It is pressed against the delivery roller 42 by the stroke motor 168. Ru. The mouth 112 of the suction pipe 110 is located above the auxiliary roller 154.

At the initial position A (see FIG. 14), the auxiliary yarn 102 is moved by the auxiliary roller 154. It is guided by a portion that protrudes laterally from the delivery roller 42. Auxiliary roller 15 4 is pressed against the delivery roller 42 and rotates together with it. .

The piecing process is similar to the piecing process described above.

That is, immediately after the suction pipe 110 leaves position A and starts turning toward position B, The brake 90 (see FIG. 2) is released.

After reaching position B, the suction pipe 110 is pivoted in the opposite direction to approximately the plane of symmetry of the spinning position. Proceed to a certain position C. Same as above, the turning distance between positions A and B is the entire length of the roving 74. The rubber stroke 70 (see Figure 1) is exceeded, and the auxiliary thread 102 is surely stretched. The rovings 74 can be intertwined with each other. However, here the spinning triangle is formed on the exit side of the gap between the delivery roller 42 and the auxiliary roller 154.

As a derivative example of the embodiment shown in the drawings, the width of the auxiliary roller 154 is the same as that of the delivery roller 42. can be made equal to In this case, while in the initial position A, the auxiliary roller 154 remains lifted from the delivery roller 42. brake 90 is released (see Figure 2) and the suction pipe 110 begins to pivot, this structure The auxiliary roller 154 in the construction is driven by a stroke motor 168. roller 42. The same thing is true for the downward delivery of a regular cylindrical shape. rollers, i.e. delivery rollers with a substantially constant cross section. Also applies. In other words, a cylindrical delivery roller with a constant cross section. Even if the auxiliary roller 154 is in the initial position A, the auxiliary roller 154 lifted by.

Continuing on, the roving stop device of the present invention will be explained below.

The roving stop shown in FIG. 12, a rocker lever 214 is included. The lever 214 is a key in this embodiment. It pivots on a pivot axis formed by a pin 216 (FIG. 16) fitted into the carrier part 210. assembled as possible. A working head 218 is located at one end of the lever 214. Ru.

Details of the working head will be explained below together with the guide section 212. locker The structure of the other end 220 of lever 214 is not critical to the invention. Therefore, in the last part of this explanation, we will briefly explain the operation of the service robot. I'll keep it as long as possible.

When the carrier part 210 is used, the long car lever 214 is attached to the carrier part. The robot is assembled in the position shown in the drawing so that it can maintain two different stable positions. It is. In the first position shown in solid line in FIG. is also ready for use. Clamping head 218 of the lever in the second position is located very close to the guide part 212, and both cooperate to move the robot between them. Tightly insert the opening (not shown in Figure 15). In extreme cases The head 218 contacts the guide portion 212 as shown by the broken line in FIG. .

Between these two stable positions the head 218 has a non-active position relative to the carrier portion 210. There is a point (dead center), and at the dead point, the vertical axis of the lever 214 points almost vertically. (not shown in Figure 15). Except for this unstable dead center, the rocker lever 214 Rotates around the pivot axis due to its own weight, either towards the standby position or the operating position. Ru.

The roving guide part 212 is an actual roving guide 222 and a clamp element. It consists of 224. The roving guide 222 has a substantially U-shaped groove 22. 6 (Figure 17). Roving guide 222 portion corresponding to the closed end of groove 226 has a rounded roving passage surface 228 (FIG. 5). This passing surface is It connects to a clamping surface 230 of the clamping element 224 facing the pivot axis.

On the surface 232 of the roving guide 222 facing opposite to the direction in which the roving runs, , there is a chamfered portion 234 having a substantially paired shape, and the roving is connected to the guide groove 22. 6, it contributes to compressing the roving.

The clamping head 21.8 has a front part 236 (FIGS. 15 and 18), a clamping element 238 and a portion 240 adjacent the clamping element 238. Kula The clamp element 238 is a rod-shaped part that protrudes above the clamp head. Ru. The side surface 244 of the rod-shaped portion located on the operating position side of the lever is parallel to the vertical axis of the lever. The free end 246 of the bar is rounded.

The surface 248 (FIG. 15) of the roving guide 222 facing the rotation axis 216 is the rotation axis. It draws an arc with 216 as the center of the circle, and its radius is between the rotation axis 216 and the clamp. It is slightly larger than the maximum distance of the free end 238 of the element 238. Contrary to this In contrast, clamping surface 230 of clamping element 220 adjacent to surface 248 forms a straight line. However, the distance from the rotating shaft 216 is from the roving guide 222 to the clamp machine. It becomes smaller toward the free end of element 224.

The rocker lever 214 is rotated counterclockwise in FIG. 15 with the pivot shaft 216 as the pivot. When the head is turned in the direction of up to the point where it contacts the clamp surface with the roving sandwiched between it and the clamp surface 230. , the distance between the clamping surface 230 and the rotating shaft 216 becomes smaller.

The front portion 236 of the clamp head 236 has a rounded leading edge 250 (FIG. 18). , there is a surface 252 that connects to the side surface 244 of the clamp bar 238 . But the front of the head 236 is far away from the free end of the clamp part 238 in the turning radius direction, so It does not directly perform the clamping action of the roving.

The portion 240 adjacent the clamp element 238 simply contributes to the clamp head weight. It's just that.

The rocker lever 214 is equipped with a disk 256 (FIG. 18). Disk 25 6 is a shell-like part 25 of the carrier part 210 when assembling the roving separation device. It is inserted into 8. On the side of the disk 256 remote from the lever 214, there are two joints. There is a tubing 260 (shown in dashed lines in FIG. 18) having portions 262, 264. integumentary part 266 (Fig. 15) is the joint part. 262° 264, and both of them connect to the carrier portion 210 of the lever 214. Two stable positions are defined.

When used in a spinning machine, the carrier portion 210 is equipped with a draft mechanism (not shown). Which roving unloading device is installed upstream (as viewed from the roving transport direction)? .

Referring now to FIG. 19, the preferred mounting principles will be explained in more detail. 1st The separation device shown in FIG. 9 includes a rocker lever 124 and a guide 212. About these Since this has already been explained in relation to other drawings, it will not be explained again here. Kya The rear portion 210A is almost the same as the carrier portion 210 of FIG. A protrusion 268 is provided that contacts the outer surface of the tube 270 that is assembled into the machine. The carrier part 270A can now be connected to the pipe 270 by screws 272. ing. Tube 270 extends from projection 268 past guide 212 (roving 13-shaped guide (when viewed from the upstream position of the roving separator) The open end of groove 226 (FIG. 17) is closed. In this way, the passing surface 22 of the roving The surface 274 of the tube 270 facing 8 (Fig. A restricting surface is formed to prevent the groove 226 from deviating toward the open end. tube surface 274 also functions as a threading aid. In other words, when threading the bobbin ( Once placed on this surface 274, the roving to be wound from the groove 2 You can get into 26.

Naturally, the roving thread path that passes through the roving separator during normal operation is Guide elements (not shown in the drawing) and rovings located before and after the roving separation device Determined by the positional relationship with the separation device. The dashed line in Figure 19 indicates the roving. An example of a preferred yarn path is shown in which the roving first contacts surface 274 and then The separating device runs over the passing surface 228 and does not touch the lower part of the clamping surface 230. (.In this way the surface 27 4 and the passage surface 228, the special positional relationship between the passage surface 228 and the roving in a defined manner (guaranteed; however, this arrangement is not important to the invention.

The tube 270 extends through multiple spinning stations of the spinning machine and includes multiple separation devices (each spinning Preferably, the tube acts as a common carrier for the separation devices (one separation device at a location). . However, this type of configuration is also not essential to the invention. Separation of each spinning position The device may also be provided with its own carrier.

The connection of the roving separator to a suitable carrier may be made in a manner other than that shown in Figure 19. It is also possible to do so by law. Carrier portion 210 (FIG. 15) is, for example, Connecting linearly with the carrier in the area of the skin 258 (FIG. 16) You can also do it. However, even in this case, the guide surface corresponding to surface 274 (FIG. 19) is passed through. It is advantageous to provide it upstream of the surface 228. Also, the rocker lever 214 and guide There is no need for the sections 212 to be joined into one unit by the carrier portion. but If it is a unit, it can be handled as a whole, so it can be installed on or removed from the machine. This is useful when removing it.

As already mentioned, the roving separation device is Must be installed before the roving unloading device (draft mechanism). At that time If there is enough space between the roving separation device and the roving unloading device, Ensure free access to. By doing this, the service robot ( Examples: US PS No. 4.506,948 and our West German PS No. 3909746, 19 March 23, 1989) when operating the roving separation device, the robot's service machine Collisions between the base and other mechanical parts can be reliably avoided.

The free end 220 (FIG. 15) of the rocker lever 214 serves as the actuating part. Ru. The other end has a side protrusion 280 and a surface 282 that is inclined with respect to the longitudinal axis of the lever. There is. The protrusion 280 is rotated counterclockwise by the robot's actuating element (not shown in the drawing). direction (Fig. 15), and move the working head of the lever from the standby position to the operating position. Functions as a joint for movement. At this time, the roving is the rod-shaped part 238 (the first 5) and the clamping surface 2300. clamp head 218 reaches its maximum travel position (indicated by the dashed line in Figure 15). The work has begun. The clamping action is not a service robot, but rather primarily It depends on the weight of the clamp head. During this time, the roving conveyor continues to operate. and attempts to extract more spinning material from the separator. This conveying operation Torque is applied to the rocker lever 214, and the clamp head is effectively roving. It pivots further toward its maximum travel position until it is clamped. to the clamp The stopping position of the head 218 is determined by the tex of the roving, that is, the cross section of the roving. It varies depending on the number of fibers.

The roving is stretched and cut by the unloading operation between the separating device and the unloading device. Ru. The cutting point depends on the adhesion of the roving fibers, but is usually at the clamp position. They are close together and therefore the rovings in the clamping position are narrower. But Robi The ring can still be reliably passed through the guide 222 and the operator can press the lever 214. At the same time as resetting the clamp head 218 by turning it in the clockwise direction (Fig. 15) It is designed to be sent into the roving unloading device (draft mechanism). .

Service robots usually do not perform reset work on roving separation devices.

A reflective foil (not shown in the drawing) is attached to surface 282.

Also, when the lever 214 is in the standby position, the surface 282 is substantially vertical. The reflective foil is The service robot's optical sensor functions as a "sensing surface" and detects the Determine whether the roving separator in the position is in the active or standby position. Ru.

When the optical sensor determines that the roving separation device is in the activated position, the service The screw robot can pass through the spinning position without performing any service work such as repair. I can do it. This is because the spinning location requires manual services. This is because it is considered "defective" for service robots.

For example, the surface with the joint 262 is provided so that maintenance personnel can visually check the state of the separation device. , red foil (229) may be attached.

The present invention uses a surface away from the rotation axis (rounded surface 246) as the clamping surface. Not limited to. In principle, the clamping surface should be oriented in the axial direction of the rotating shaft. It is possible. However, the arrangement of the drawings is representative of a preferred solution.

The present invention is not limited to bar-shaped clamp parts, but rather clamp parts of relatively small dimensions. It is also possible to extend the clamping action by using ramp surfaces.

The parts shown in the drawings are produced by a molding process (such as plastic) that does not require subsequent machining. It is suitable for manufacturing, and the carrier part 210 and the guide part 212 are one part. In addition, the lever 214 including the disc 256 can be manufactured as a single part. It can be cast as a product.

As shown in the drawing, the clamping surface of the rocker lever is rounded. . In addition, the rocker lever and guide are formed into one unit through a part of the carrier. The guide has an opening for threading. carrier side guide so that it can influence the retraction of the roving into the separating device. It is desirable to place it before the section.

FIG, 1 FIG.2 rf/”: 11 Fl(3,7 “Kuchi J, JJ FfG, 15 FIG. 17 international search report k　PCT/EP　9010046B-11-＾----1 Sorry PCT/εP 9 0100468 International Search Report EP 9000468 SA 35318

Claims (1)

[Claims] 1. A spinning stock that is unwound from a draft mechanism, especially for repairing yarn breaks at the spinning position. A service robot is used to ensure that the yarn is re-wound onto the spinning spool at the spinning position, and the service robot ensures that one end of the auxiliary yarn is The yarn is first wound around the spun spool without being spliced to the broken end of the spool. Then, the other end of the auxiliary yarn is passed through at least one of the two delivery rollers of the draft mechanism and laterally passed through the delivery roller as seen from the running direction of the spun yarn. - the process of guiding the auxiliary thread to the front region of the pair, and finally the other end of this auxiliary thread is at least delivered. The spinning material enters the roller gap between the rerollers and is delivered by the delivery roller pair. A spinning machine characterized by a process in which the auxiliary yarn is rolled up by a delivery roller together with a fiber bundle of yarn raw material, and the other end of the auxiliary yarn is run largely in the longitudinal axis direction of the roller until the fiber bundle is spliced to the end of the auxiliary yarn. , especially how ring spinning machines operate. 2. It is first pressed down under the upper delivery roller, i.e. the cleaning roller located above the front top roller, followed by the cleaning roller. At this time, remove the cleaning roller without removing it. It is recommended to lift one side slightly to prevent it from completely separating from the roller guide. However, it is characterized by a process in which the yarn end is placed behind the pair of delivery rollers by a thin plate-like or rod-like yarn guide device that moves largely along the longitudinal axis of the roller while elastically holding the yarn end. The method according to claim 1, wherein: 3. Claim 1 or 2, characterized in that the yarn guiding element is guided together with the piecing yarn during the longitudinal movement of the roller which exceeds the entire length of the front top roller. is the method described in Section 2. 4. The free end of the piecing thread is pulled out diagonally to the longitudinal axis of the delivery roller and Method according to any one of the preceding claims, characterized by the step of falling within the working range of the roller gap defined by the berth movement stroke. 5. Method according to any one of the preceding claims, characterized in that in each case an auxiliary thread is used with a predetermined overall length. 6. The process in which the auxiliary thread supply is carried out by a service robot and The process is characterized by a process in which an auxiliary thread of a certain length is pulled out from a service robot and cut. A method according to any one of the preceding claims. 7. The other end of the auxiliary yarn is placed in the longitudinal axis direction of the roller, corresponding to the traverse stroke of the spinning material. A method according to any one of the preceding claims, characterized by a step of moving a distance greater than a distance. 8. It is characterized by a process in which the other end of the auxiliary yarn moves in the longitudinal axis direction of the roller along a path of a distance corresponding to the traverse stroke of the spinning material, and then subsequently moves in the opposite direction to at least approximately the center position of the delivery roller. Any of the above claims The method described in item 1. 9. The process according to any one of the above claims, characterized by a step in which the other end of the auxiliary yarn moves significantly in the longitudinal axis direction of the roller at a speed faster than the traverse speed of the spinning raw material. How to put it on. 10. The other end of the auxiliary thread passes through one of the two delivery rollers and the other end A method according to any one of the preceding claims, characterized by the step of moving laterally in gentle contact with the other delivery roller. 11. Process according to any one of the preceding claims, characterized by the step of using auxiliary yarns which are finer and preferably stronger than the at least ordinary and coarse-grained spinning stock. 12. The method according to any one of claims 1 to 10, characterized by the step of using a thicker auxiliary yarn when the spinning raw material is thin. 13. Process according to any one of the preceding claims, characterized in that the other end of the auxiliary yarn is joined to the spinning stock at a spindle rotational speed lower than the operating rotational speed. 14. The other end of the auxiliary thread is at least below the delivery roller that is winding the auxiliary thread. A method according to any one of the preceding claims, characterized by the step of threading the yarn while ensuring a free yarn end of approximately the same length as the outer circumference of the side pull-out roller. 15. While the auxiliary thread is being pulled out from the delivery roller pair, pull the auxiliary thread until its release. A method according to any one of the preceding claims, characterized in that the other end of the auxiliary thread is guided by means of a thread brake of a service robot which is held taut. 16. The process is characterized by a process in which the auxiliary thread is initially held taut and then released, the other end of the auxiliary thread being guided by a movable thread clamping means of a service robot. A method according to any one of the preceding claims. 17. The process in which the auxiliary yarn to be spliced is picked up by a yarn storage device, such as the suction pipe of a service robot, which elastically holds the auxiliary yarn, and the threading of the auxiliary yarn necessary for the yarn splicing process are performed using this yarn storage device or Specializing in the process that takes place through the mouth. A method according to any one of the preceding claims, characterized in that the method comprises: 18. The yarn ends to be spliced pass through the fiber flap in the exit area from the draft mechanism in the first phase. The process of being guided by a machine on the lease and being held during that time, and the second phase. The end of the thread being spliced is moved by the delivery roller against the resistance holding it. A process in which the yarn end moves or rotates in the axial direction between the delivery rollers belonging to the draft mechanism until it is rolled up and spliced with the fiber fleece. A method for splicing yarn ends onto a fiber fleece emerging from a roving in the region of a draft mechanism of a ring spinning machine, as described in detail in any one of the preceding claims. 19. The splicing thread passes through the lower delivery roller and the paired front top roller. A process in which the thread is elastically retained at or at one of the points where the thread is led laterally by a storage device and where the thread end is held under small tension and The process in which the yarn is deflected at the front edge of the top roller; at that moment, the spindle of the spun yarn that winds the yarn begins to rotate, and at that moment the joining yarn is transferred to the downward delivery roller. according to claim 4, characterized in that a larger withdrawal force is generated, corresponding to the tension between the delivery roller pair and the spinning yarn spindle, which is drawn into the roller gap between the delivery roller pair and the front top roller. the method of. 20. An automatic yarn splicing unit with yarn guiding elements for splicing the yarn spliced onto the spinning material fed out from the draft mechanism of a spinning machine, in particular a ring spinning frame, and an electronic control unit, in particular a programmable electronic control. The auxiliary yarn supplying device (104) is loaded, and one end (106) of the auxiliary yarn (102) pulled out from the auxiliary yarn supplying device (104) is spun into a yarn without being tied to the cut yarn. automatic splicing of the auxiliary yarn (102), which is first wound around the yarn (18) and also separates at the other end (108) the auxiliary yarn (102) coming out of the feeding device (104); The automatic splicing unit (136) is provided with means for the second end (108) of the auxiliary yarn to be transferred to the drafting mechanism (24) by the yarn guiding device (110). It passes through at least one of the rollers and is guided laterally into an area in front of the pair of delivery rollers (42, 44) when viewed in the running direction of the thread, and subsequently passes through at least one of the delivery rollers (42, 44). 44) The fiber bundle of the spinning raw material (74) that enters the gap between the rollers and is delivered by the pair of delivery rollers can be moved largely in the longitudinal axis direction of the rollers until it is wound onto the other end (108) of the auxiliary yarn. characterized in that it is designed and can be controlled by a control unit (134). A mobile service robot (82) for the servicing of a ring spinning machine, in particular for implementing the method as claimed in any one of the preceding claims. 21. A thread guide element (110) in the form of a thin plate or a rod is provided. Alternatively, the rod-shaped thread guide element (110) is the delivery roller of the above example, that is, the Freon. The cleaning roller (54) is first pushed under the cleaning roller (54) located above the top roller (44), and then the cleaning roller (54) is subsequently held. The automatic splicing unit (136) is designed so that it can move widely in the longitudinal axis direction of the roller while being lifted and the yarn end is held elastically. 21. Service robot according to claim 20, characterized in that it can be controlled by a control device (134). 22. In each case, means are provided for drawing out and cutting a predetermined length of the auxiliary yarn (102) from the auxiliary yarn supply device (104). The service robot according to claim 20 or 21, characterized in that: 23. The yarn guide element (110) or its yarn outlet end is connected to the traverse line of the spinning raw material. 23. The service robot according to any one of claims 20 to 22, characterized in that it can move largely in the longitudinal axis direction of the roller up to a distance corresponding to . 24. After the thread guiding element (110) moves in the direction of the longitudinal axis of the roller, at least 22. The delivery roller according to claim 21, wherein the delivery roller is movable along a path having a length substantially corresponding to a berth stroke to at least a substantially central position of the pair of delivery rollers (42, 44). Service robot. 25. The yarn guide element (110) is rotated at a speed faster than the traverse speed of the spinning material. Claims 20 to 24, characterized in that the roller can be moved largely in the longitudinal axis direction of the roller. The service robot described in any one of the above. 26. The controllably movable thread guide element (110) may include an integral thread brake. The service robot according to any one of claims 20 to 25, characterized in that: 27. A thin plate is equipped as a thread guiding element, and the thin plate is equipped with a thread brake that forms a clamp. 24. The service robot according to claim 23, further comprising a key. 28. The yarn guiding device stores the auxiliary yarn (102) under the control of the electronic control unit (134) and serves as a suction pipe (110) having an opening (112) for guiding the yarn path of the auxiliary yarn (102). Any one of claims 20 to 26, characterized in that: The service robot described in item 1 above. 29. Service robot according to claim 28, characterized in that the suction tube (110) is designed to pick up a quantity of auxiliary yarn. 30. Each spinning position is equipped with a drive means (32) capable of individual block control. The spindle (14), the ring traveler (20), the yarn guide (22), the first pair of rollers (38, 40), and the drive delivery roller that rotates at a faster circumferential speed than the first pair of rollers and the a drafting mechanism (24) having a second pair of rollers (42, 44) consisting of a pressed front top roller; and a traverse stroke (70) arranged upstream of the drafting mechanism (24) in a plane parallel to the roller axis. Around It consists of a traverse guide (26) that periodically reciprocates and a holder (72) for the roving bobbin (28).It also has a holder (72) for the roving bobbin (28). It is arranged in front of the lined spinning position (12) and prevents the rotation of the spindle (14) and the holder of the end (108) of the joining yarn (102). Claims 1 to 19 comprising a service robot (82) having a control member (90) for controlling the service robot, in particular the service robot according to any one of claims 20 to 30. The thread guiding element (110) is movable relative to the delivery roller (42) for operation according to the method described in any one of the preceding paragraphs. Entering a first position A displaced in the plane of symmetry of the spinning position (12) where service is required At this point, the splicing yarn (102) has not yet been wound around the delivery roller (42), and the yarn guide element (110) has moved across the roving supply direction until at least the traverse stroke (70). A ring spinning machine having a plurality of horizontally arranged spinning positions (12), characterized in that it is movable to position B. 31. A cleaning roller (54) that can freely rotate within the vertical groove (60) is located above the front top roller (44), and is A thread guide element (110), preferably in the form of a rod, is connected to the cleaning roller. Ring spinning according to claim 30, characterized in that when the cleaning roller (54) is moved to the first position A under the roller (54), it can be moved while lifting the cleaning roller (54). Machine. 32. The first position A of the thread guide element (110) is above the second roller pair (42, 44) Ring spinning machine according to claim 30 or 31, characterized in that it is arranged in a continuous stream. 33. An auxiliary roller (154) that can be pressed against the delivery roller (42) is arranged below the thread guide element (110) of the service robot (82). and that the thread guide element (110) is at least aligned in the axial direction of the auxiliary roller (154). The ring spinning machine according to claim 30, characterized in that the spinning raw material can be moved by a traverse stroke (70). 34. It consists of a rocker lever with a clamp head that is arranged so as to be rotatable around a pivot axis between a standby position and an operating position, and a guide that guides the roving on the clamping surface by following the roving. Clamp head towards working position When making a turn, the guide passes through the guide without contacting it at first, and then the club turns. In particular, the method as claimed in any one of the preceding claims and any of the preceding claims, characterized in that the clamping surface is arranged relative to the pivot axis in such a way that it rubs against the clamping surface and generates a large clamping force. or service robots listed in paragraph 1, or Roving separation equipment used with either. 35. 35. Separation device according to claim 34, characterized in that the rocker lever has a clamping surface facing away from the axis of rotation. 36. 36. Separation device according to claim 34 or 35, characterized in that the guide has a thread passage surface leading to the clamping surface. 37. Features sides to prevent the roving from deflecting laterally from the passing surface. 37. The separation device according to claim 36.