CN106835400A - Weaving loom and false-twisting device - Google Patents

Abstract

A kind of weaving loom, especially RING SPINNING loom, it has the multiple units being arranged side by side（1）, wherein each unit（1）All there is the drafter for being used for migrating fiber band；The fiber band of migration is set to be twisted into twine（3）Textile apparatus；It is arranged on the false-twisting device between drafter and textile apparatus（9）, the false-twisting device（9）With at least one belt driven by drive device（11）, the belt extends substantially transversely to twine（3）Extended, and twine（3）It is wrapped belt to especially Z-shape or S-shaped（11）Two reverse reversion sections（4,5）, at least one belt（11）Along multiple units of weaving loom (10) between at least one drive device and transfer（1）Extend.By the present invention, at least one assistance device is provided between at least one drive device and transfer（30）, its assisting ground is guided and/or drives at least one belt（11）.

Description

Textile machines and false twisting devices

technical field

The invention relates to a textile machine, in particular a ring spinning machine, having a plurality of units arranged side by side, wherein each unit has a drafting mechanism for transporting a fiber strip; Spinning device; False twisting device arranged between the drafting device and the spinning device, which has at least one belt driven by means of a drive, which belt extends transversely to the plying thread, and the plying thread is wound around this or in particular in a Z-shape Two opposite return sections of these belts, and said at least one belt extends along multiple units of the textile machine between the drive device and the steering device; and the corresponding false twist device, which can be installed in the textile On the machine, so that obtain by the textile machine of the present invention.

Background technique

A textile machine is known from WO 2010/015185 A1, in which a false twist device is arranged between a drafting mechanism and a bobbin, on which the fiber strip is twisted and wound on the bobbin. According to an embodiment of the publication there, the false twist device consists of a single belt, which is driven by a drive. The upper and lower return runs of this belt run opposite to each other. If the belts are arranged directly next to each other, the yarn touches the two belt runs here in a point-like manner ( FIG. 4 ). In another embodiment ( FIG. 3 ), the straps are spaced apart from each other and extend in opposite directions substantially vertically one above the other. The strands are wrapped around the belts at an angle of about 90° in this embodiment. In the embodiment according to FIGS. 1-7, the false twist device consists of a single belt. The two belt returns have the same speed here, although they are of course moving in opposite directions. In this embodiment the false twist device is very limited by the different shapes, speeds or layouts of the two belt return sections of the single belt, whereas in other embodiments according to FIG. 8 or in the embodiment according to FIG. 9 There is a false twist device with two belts. In this case, the belts are of course circular, with the thread lying between the two belts.

These belts are guided over the entire length or part of the length of the machine. A belt drive station is located at the beginning of the machine. At the end of the machine or belt zone, the belt is deflected in a deflection station. The belt is taut between these two stations and runs along multiple units. At rest, the tension is evenly distributed over the length of the belt (on the traction return and the initial return). The tension distribution changes during operation. During the traction return segment, adjust the tension to a higher tension than the starting return segment. The tension in the belt is strongest just after the belt runs, and the tension in the belt is weakest just before the belt runs. An uneven tension distribution along the belt does not adversely affect the false twist generation of the yarn when the belt prestress is sufficiently high. If the textile machine and the belt drive stop, the tension is compensated along the belt. The belt moves towards the highest tension and thus towards the belt drive. Tension compensation is also possible during belt standstill. The longer the belt is stationary, the more the belt tension is compensated. Due to the expansion compensation at rest and the ensuing movement of the belt, the individual ply threads are moved out of their weaving plane and are therefore more or less stressed.

When the machine is restarted, there should be as few strand breaks as possible. However, if the belt tension is compensated at standstill, it must be built up again when the machine is restarted. Accompanying the build-up of the belt tension is a time-delayed start of the belt towards the deflection station. When the drafting mechanism and the crankshaft are regularly activated by the machine, the spun material is pulled by the stationary belt for a very short time without additional thread misalignment and without the resulting torsion ply thread. The longer the belt, the greater this effect. This also increases the number of breaks in the ply start, which is unacceptable. Initiating breaks in the ply line usually occur on the end of the machine towards the steering station, where the highest compensating movement of the lower belt occurs.

In this belt, a tension drop also occurs along the machine, especially during machine operation. In the case of very long machines, this tension drop reaches an impermissible height if drives are provided both at the machine start and at the machine end for driving the belts.

Contents of the invention

It is therefore the object of the present invention to provide a textile machine and a false twist device by means of which the tension drop along the machine in the belt is reduced.

This object is achieved by a textile machine according to claim 1 and by a false twist device having the features of the corresponding independent claim, which can be arranged on such a textile machine.

The spinning machine according to the invention has a plurality of spinning units arranged side by side. Suitable textile machines are, for example, ring spinning machines. Each weaving unit comprises a drafting mechanism for transporting the fiber strip and a spinning device for twisting the transported fiber strip into a ply. A false twisting device is arranged between the drafting mechanism and the spinning device. The false twisting device has friction surfaces which extend substantially perpendicularly to the ply wire and contact the ply wire. The velocity vectors of these friction surfaces are substantially opposite and generally perpendicular to the longitudinal axis and direction of travel of the ply strand. The false twist device has at least one belt driven by means of a drive, which belt extends substantially perpendicularly to the ply strand. In particular, the ply wire surrounds the two opposite run lengths of the belt or belts in a Z-shape or S-shape. The friction surface of the false twist device is formed, for example, by the surface of a plastic belt. In the case of a correctly laid strand, the belt or its run, in particular, is wound around the strand in a Z-shape or S-shape, so that the two oppositely moving parts of the belt run touch the strand. Since the two friction surfaces act on both sides of the ply thread, the ply thread or its outer fibers are twisted. The at least one belt extends along the units of the textile machine between the drive device and the deflection device.

According to the invention, at least one auxiliary device is arranged between the at least one drive device and the deflection device, which assists in driving the at least one belt. By means of the assisting device, belt tension differences can be reduced over its length. If the length of the machine is particularly long, it is also advantageous if several auxiliary devices are arranged between the drive device and the steering device. Tension differences in the belt are thus also better reduced.

The role of the assisting devices, drives and deflectors is to ensure that the tension differences in the belts are not too high during operation and that these belts are sufficiently tensioned at each weaving station. When the tension is high enough, the two belts are not deflected too strongly by the pull of the ply wire. As a result, contact of the two belts is avoided when a substantial number of yarns has been spun and when the strand stresses are correspondingly high.

On the other hand, when the tension difference is small, the slack movement of the belt is small during standstill. During the relaxation movement backwards, when the drafting mechanism is erected and the machine shaft is no longer rotating, there is no risk of tearing the strands.

An advantageous development of the invention provides that the at least one drive is arranged at a machine end, a section end or a partial road end (for example a belt end). The associated deflection device of the at least one belt is then arranged at another machine end, section end or partial road end (eg belt section end). The belt is therefore taut over the entire length of the machine.

Furthermore, it is advantageous if the assisting device comprises at least one drive pulley, by means of which at least one belt can be driven and/or guided. By means of the driven capstan, tension differences can also be reduced. Additionally or alternatively, the assisting device can comprise at least one deflection roller, by means of which the direction of the at least one belt can be deflected. For example, the resistance is increased by means of deflection rollers, which oppose the deflection rollers to the belt. The tension difference is thus further reduced.

It is also advantageous if the at least one drive pulley and/or the at least one deflection roller are displaceable, so that the at least one belt can be tightened more or less (more or less). Since most belts have an aging-induced stretch, the drive pulley and/or deflection pulley can be pushed as the belt ages in such a way that the belt becomes taut again. Thus ensuring an even tension in the belt over time. But it is also possible to increase or decrease this warp force to match the twist of the ply wire.

It is also advantageous if the assisting device, in particular the drive pulley and/or the at least one deflection roller, is arranged in such a way that the at least one belt is guided around an obstacle. The at least one belt can thus be guided around the transmission module or other components belonging to the textile machine. The at least one belt is guided over the obstacle, for example by arranging the driving pulley above the obstacle and by arranging a deflection roller in front of the obstacle and a deflection roller behind the obstacle.

In an advantageous configuration of the invention, at least one of these belts (preferably a plurality of belts) is arranged along one or more segments of a textile machine with a plurality of weaving stations, or along the Set up on one or both sides. In a segmented configuration, different adjustments of the belt can thus be realized in segments. Individual segments or segments or one or both sides of the textile machine thus form so-called partial sections or belt zones.

False twist can be obtained for both sides of a double-sided textile machine by means of a single motor and a single steering and/or a single auxiliary if the drive, steering and auxiliary are assigned to separate belts on both machine sides device. The drive is here arranged either centrally between the two machines and drives the belts via drive shafts and drive pulleys. It is also possible to arrange a drive, a deflection device and an auxiliary device on the side of the textile machine and to drive the belt or belts on the opposite machine side by means of their overdrive. This generally simplifies servicing of the drive, steering and/or assist devices, since it is easily accessible from the side of the machine.

An advantageous development of the invention provides that the two opposite runs of the belt are guided around the at least one drive pulley in such a way that the two opposite runs of the belt One of the belts is guided clockwise around the at least one driving pulley, and the other of the two opposite return segments of the belt is guided counterclockwise around the at least one driving pulley. Thus, for example, the two opposite return sections can be driven by means of a single drive wheel. Since the two opposite return segments are also guided in opposite directions (i.e. one clockwise and the other counterclockwise) around the driving wheel, it is possible to use only one driving wheel Drive both return segments. The drive wheel here rotates in one direction, and a counterguiding of the two return sections causes the two return sections to also be driven in the opposite direction. The drive wheel can be driven, for example, by means of a single shaft and/or a single motor.

However, it is also possible, for example, to arrange two (or more) drive wheels on a single shaft. If one of the two return sections is guided clockwise around a driving wheel, and the other of the two return sections is guided counterclockwise around the other driving wheel, it is also possible here The two opposite return segments are driven by means of a single shaft and/or a single motor.

With this guidance, it is also possible to drive two opposite return sections.

Furthermore, it is advantageous if an auxiliary device is provided on both sides of the textile machine, wherein the two auxiliary devices are driven by means of a shaft and a motor. The two driving wheels of the two auxiliary devices are also driven by the shaft and the motor. The shaft extends here, for example, below the auxiliary device, so that it can drive the two drive wheels or the two auxiliary devices. Advantageously, the motor drives the shaft through a transmission.

It is also advantageous if the steering device and/or the at least one auxiliary device are driven by at least one additional drive. The belt is thus driven evenly over the entire length of the machine. This reduces the differential tension of the belt, or maintains the tension of the belt evenly over its length.

If, in an advantageous embodiment of the invention, the drive device and the auxiliary drive are connected to one another via the control device to form a synchronized drive, different tensions of the belt are avoided, in particular when the belt is running, stopped and started. By correspondingly coordinating the rotational speeds of the two drives, the control device enables constant acceleration or braking of the belt. During normal operation, the controller also runs the two drives evenly and at similar speeds to maintain belt tension in a predetermined manner.

A uniform acceleration or braking of the belt can be achieved particularly advantageously if the drive and the auxiliary drive have a three-phase AC motor.

If, in an advantageous embodiment of the invention, the drive means for driving the two belts is a single motor, and/or the two belts have a single deflection means, such as an overload drive, then it is possible to use the means for driving or deflecting the other The corresponding drive is effected either by the shaft of a belt on the machine side or by means of a transmission for driving a second belt arranged on the same machine side.

If the drive used to drive the two belts has at least two motors, each belt can be driven by a separate motor or have a separate steering device, so that the belts can be driven or braked independently of each other without Will reduce belt tension when stationary. Two assisting devices are also provided for this purpose, so one assisting device is used for one belt and the other assisting device is used for the other belt. In particular, different speeds of the two belts for the false twist can thus be realized, which is particularly advantageous when generating false twist.

In a simple embodiment of the false twist device it is provided that the drive for driving the two belts is a single motor, in particular with a transmission, and/or that the two belts have a single deflector. Through this transmission, it is possible to change the direction of the drive of the belt. Thus, the first belt is driven in a first direction and the second belt is driven in a second reversed direction.

The drive device, the deflection device and/or the assistance device have a swivel lock so that the belt is prevented from swiveling, in particular when it is stopped. This is advantageous because the belt does not slack when at rest.

In order to be able to drive the two belts particularly independently, it is advantageous if the drive has at least two motors, so that each belt can be driven by a separate motor. The speeds of the two belts can thus be controlled individually and the false twist device can be optimally adjusted in order to introduce the twist into the yarn as desired.

Advantageously, the drive drives the belts at different speeds both when using a single motor with a transmission and when using two separate motors.

In order to be able to ensure a regular belt start, motors are additionally provided not only in the drive station but also in the steering station and/or in the auxiliary device. The belt is thus driven by means of two or three motors (or, in the case of several assisting devices, also by means of three motors), which are of course controlled synchronously with each other by means of a control unit. It is advantageous to use a three-phase AC motor, which through the slip balances possible drive speed tolerances caused by friction, diameter deviations, etc.

The invention also relates to a false twisting device having a belt and a drive, said false twisting device having the aforementioned features, adapted to be mounted on a textile machine to create a textile machine described above.

Description of drawings

Further advantages of the invention are illustrated in the following examples. in:

Fig. 1 shows in a schematic view the false twisting device according to the invention on the spinning unit;

Fig. 2 shows in a schematic diagram a side view of a false twist device according to the invention, each machine side or section having a unique belt;

Figure 3 shows a top view of a textile machine in a schematic diagram with two assisting devices;

Figure 4 shows in a schematic diagram a top view of a textile machine with assisting devices;

Figure 5 shows a side view of the assisting device in a schematic view;

Figure 6 shows a side view of an assisting device and an obstacle in a schematic view; and

FIG. 7 shows a schematic top view of two assisting devices.

list of reference signs

1 Textile unit of the textile machine

2 The output roller pair of the drafting mechanism

3 strands

4 belts or first belt return section

5 belt or second belt return section

6 twist stopper

7 traveler

8 bobbins

9 false twist device

10 textile machine

11 belt

12 belt drive disc

13 belt tensioner

14 machine start

15 end of machine

16 corner rollers

17 supporting rollers

18 motor

19 overload transmission

20-turn latch

21 motor

22 motor

23 steering wheel

24 motor

25 drive roller

26 additional drives

27 segments

28 controllers

30 assisting device

31 steering wheel

32 drive wheel

33 obstacles

34 axis

35 motor

F ₁₁ , F ₁₂ , F ₂₁ , F ₂₂ ply thread tension

v1, v1', v2, v2' belt speed

SA drafting unit output

DR Direction of rotation.

detailed description

In FIG. 1 a weaving unit 1 of a weaving machine 10 is shown schematically and partially. The delivery roll pair 2 of the drafting unit, not shown, supplies the ply strand 3 and forms the drafting unit output SA. The strand 3 turns around a first plastic belt 4 and then around a second plastic belt 5 . Subsequently, the ply thread 3 passes through the twist stopper 6 and the traveler 7, and is wound on the bobbin 8 at last. The first plastic belt 4 and the second plastic belt 5 form a false twist device 9 . The two plastic belts 4 and 5 can refer to two separate belts 4 and 5 or to stretching and pushing return sections of a single belt.

The first plastic belt 4 and the second plastic belt 5 or both runs have opposite directions of movement. Since the ply thread 3 lies on two belts 4 and 5 moving in opposite directions, the yarn is stretched in one direction by one return and in the other direction by the other return. The ply wire 3 is deflected in the direction of travel until the two frictional forces are balanced. The strand stresses F ₁₁ and F ₁₂ and F ₂₁ and F ₂₂ are different. Therefore, the bearing pressure of the strand 3 on one belt run is different from the bearing pressure on the other belt run. The strand 3 is carried more by the belt return, which lays flatter on it more strongly, provided that they are belts 4 and 5 of the same kind. During ring weaving, this support pressure is highest on the return section which is closer to the ply balloon between the twist arrester 6 and the traveler 7 . The belt 5 or the return runs in such a way that the real rotation is enhanced by the false twist produced by the belt 4 . Between the belt 4 and the pair of output rolls 2 of the drafting unit there are generally more rotations, as occurs later on the head or the bobbin 8 in the finished strand 3 .

By means of these belts 4 and 5 arranged in a substantially horizontal plane, and in combination with the output roller pair 2 or the drafting mechanism output SA and the twist stopper 6, the belts 4 and 5 or the return run are wound by the ply wire 3, This wrap exceeds 90°. As a result, particularly high frictional forces are exerted on the strand 3 and thus a twist is introduced into the strand 3 . The false twist device 9 can thus work very efficiently. However, the strands 3 are handled with care so that breakage of the strands can be avoided in an acceptable manner during normal operation. The configuration of the strips 4 and 5 is also different from what is shown here, in that instead of lying in a horizontal plane, they are obliquely offset or perpendicular to one another.

Figure 2 schematically shows the layout of the belt drive in side view. The belt 11 is tensioned between a belt drive pulley 12 and a belt take-up pulley 13 . The belt drive pulley 12 is provided at the machine or segment start 14 and the belt take-up pulley 13 is fixed at the machine or segment end 15 . The belt drive pulley 12 is connected to a drive motor 18 which is not visible here and which drives the belt drive pulley 12 . The belt drive pulley 12 is preferably fixedly arranged at the machine start 14 . In contrast, the belt tensioning disc 13 is arranged movably at the machine end or segment end 15 . Due to the vertical movement of the belt tensioning disc 13 in the direction of the double arrow, the belt 11 can be more or less tensioned.

This belt 11 runs over corner rollers 16 and support rollers 17 . The corner rollers 16 deflect the belt 11 and the belt return 4 or 5 at the desired position at the level of the spinning unit 1 . The belt 11 runs between the corner rollers 16 preferably straight or zigzag along a plurality of textile units 1 arranged next to each other. The belt return runs 4 and 5 are guided within the region of the spinning unit 1 by means of support rollers 17 .

Support rollers 17 are arranged between the spinning units 1 . They can be present on each weaving unit 1 or be provided at intervals of several weaving units 1 . Each support roller 17 has a surface or groove on or in which the belt return 4 or 5 is placed and held in place. This ensures both a stable running of the belt 11 with respect to the ply wire 3 and thus also ensures an even twisting of the ply wire 3 in interaction. The corner rollers 16 and/or the support rollers 17 can have different diameters for the belt return 4 and the belt return 5 . Thus, with the axes of the support rollers oriented horizontally, a vertical spacing of the belt return runs 4 and 5 is achieved. However, if the corner rollers 16 and the supporting rollers 17 have the same diameter of their supporting surfaces, the course of the belt runs 4 and 5 lies in the same horizontal plane when the axes of the supporting rollers 17 are arranged horizontally.

Belt return 4 and belt return 5 move oppositely at speeds v1 and v2. The supporting surfaces of the supporting rollers 17 thus likewise rotate in opposite directions. The supporting rollers 17 therefore advantageously have partial rollers which are rotatably mounted independently of one another.

Advantageously, a rotary lock 20 is shown schematically on the belt drive pulley 12 and the belt take-up pulley 13 . The swivel lock 20 can be a freewheel which runs freely in the driving direction of the belt 4 , 5 and locks in the opposite direction. Therefore, when the drive is stopped, the belt 4 , 5 or the return path of the belt 4 , 5 does not lose the tension established during normal operation. Therefore, when the belts 4 , 5 are restarted, no tension buildup occurs, which initially slowly increases to its running tension over the length of the belts 4 , 5 and could cause the strands to break.

In addition to the freewheel mentioned, the swivel lock 20 can also be a self-locking worm gear transmission of a drive motor or a clamping device for clamping rollers or belts.

In addition to arranging the swivel lock 20 on the belt drive pulley 12 and the belt take-up pulley 13 , it is also possible to arrange one or each of these swivel locks 20 on one or both deflection rollers 16 . Here, the belts 4 , 5 are held taut directly in front of the weaving station 1 at rest.

FIG. 3 shows a schematic top view of a textile machine 10 with two assisting devices 30 , 30 ′. The textile machine 10 has a plurality of textile units 1 arranged side by side. For clarity of illustration, only individual textile units 1 are marked. On each machine side, a first belt return 4 and a second belt return 5 are driven in opposite directions ahead of the spinning unit 1 . The two belts 11 and 11 ′ are driven by a single motor 18 . The motor 18 itself drives the two belt-driven pulleys 12 or 12 ′ by means of an overload transmission 19 . The belt 11 or 11' is arranged between the belt drive pulley 12 or 12' and the belt take-up pulley 13 or 13'. The belt 11 or 11' is deflected at the desired height by means of corner rollers 16 or 16'.

Between the motor 18 and the belt drive pulleys 12 , 12 ′, a rotary lock 20 is arranged in each case. The two rotary locks 20 can be used to drive both sides of the textile machine 10 independently of each other, especially if the motor is equipped, for example, with a coupling on both sides. However, if both sides of the textile machine 10 are connected to the motor 18 via a rigid coupling of the overload drive 19, it is also sufficient to provide only one rotary lock 20.

A swivel lock 20 is likewise arranged on the belt tensioning disc 13 or 13'. By means of the rotary lock 20 on the belt drive pulley 12 or 12' and the belt take-up pulley 13 or 13' these belt return runs 4, 4', 5 and 5' are kept taut even when the motor 18 is stopped.

Furthermore, auxiliary devices 30 , 30 ′ are evenly arranged on each machine side. They are located between each belt drive pulley 12, 12' and each belt take-up pulley 13, 13'. The assisting device 30 assists in driving the two belt returns 4 , 5 , and the assisting device 30 ′ assists in driving the two belt returns 4 ′, 5 ′. This avoids tension differences in the belt return runs 4 , 5 , 4 ′, 5 ′, especially in the case of long textile machines. The two auxiliary devices 30 , 30 ′ can be driven by a single auxiliary drive 26 which has a single shaft 34 and a single motor 35 .

The exact function and features of the assisting devices 30 , 30 ′ are then also explained, for example in FIG. 7 .

Embodiments of the invention that are not shown have belts or belt returns that do not run straight along the spinning unit 1 but instead run along the spinning unit 1 in a corrugated manner in plan view. The distance from the belt to the weaving station preferably varies regularly. The joining of the strands 3 can thus be simplified.

FIG. 4 shows a plan view of a textile machine 10 in which a number of spinning units 1 are provided. For visual clarity, not all textile units are provided with the reference numeral 1 . The belts 4 and 5 are shown broken in order to clearly demonstrate that the textile machine 10 can be considerably longer. The two plastic belts 4 and 5 surround the textile machine 10 such that the textile unit 1 is surrounded by the two belts 4 and 5 . Each belt 4 and 5 is driven by means of a separate motor 21 and 22 and by means of a drive roller 25 respectively. The diverting rollers 23 are arranged at the diverting positions of the belts 4 and 5 . These deflection rollers 23 or other devices not shown here are provided for tensioning and/or positioning the belts 4 and 5 .

A swivel lock 20 is arranged on the driving roller 25 and on the deflection roller 23 . The effect of this rotary stopper 20 is, as previously described, if the motor 21 or 22 is stopped, the belts 4, 5 are still kept taut. When the motor 21 or 22 is restarted, no appreciable change in tension occurs in the belt 4 or 5, so that the risk of strand breakage is significantly reduced.

Since these motors 21 and 22 drive the belts 4 and 5 independently of each other, the adjustment of the speed can be selected individually. As a result, twists can be optimally introduced into the ply wire 3 . Thus, different bearing pressures of the strands 3 on the belt 4 and the belt 5 can be balanced or achieved. Furthermore, different belts 4 and 5 can be applied. They can differ in their cross-section, coefficient of friction or wear resistance. They can also be tensioned in different ways in order to also change the effect on the ply strand 3 . These belt speeds v1 and v2 (which are opposite) can also be changed.

Also shown schematically on the machine side of the textile machine 10 are assisting devices 30 which assist in driving the belts 4 , 5 . By means of the assisting device 30 the tension drop in the belts 4, 5 is reduced. Furthermore, an auxiliary device 30 can also be provided on the other machine side in order to further reduce the tension drop of the belts 4 , 5 . If the two belts 4, 5 do not run around the textile machine 10 as shown in FIG. An additional assisting device 30 is also advantageous.

FIG. 5 shows a schematic side view of the assisting device 30 . The assisting device 30 has a drive wheel 32 and, in this exemplary embodiment, a plurality of deflection rollers 31a-f. The drive wheel 32 here rotates clockwise in the direction of rotation.

Belt return 4 comes from the left at speed v2 in FIG. 5 and is deflected upwards in the direction of drive pulley 32 by deflection rollers 31 a. The belt return 4 runs above the drive pulley 32 and is deflected from the drive pulley again downwards in the direction of the deflection roller 31d. The belt return run 4 is diverted again from the deflection roller 31d so that it again runs along the machine side.

Belt return 5 , coming from the right at speed v1 in FIG. 5 , first deflects upwards at deflection roller 31 e towards deflection roller 31 c. The belt return 5 deflects here downwards towards the drive pulley 32 . The belt return 5 runs below the drive pulley 32 and diverts from the drive pulley upwards again towards the deflection roller 31b, which deflects again downwards towards the deflection roller 31f. The deflection roller 31f also deflects the belt return 5 so that it again runs along the machine side.

Since the belt return 4 extends above the drive pulley 32 and the belt return 5 extends below the drive pulley, the two belt returns 4, 5 are reversed by the drive pulley 32 (which rotates in the direction of rotation DR). drive and/or steer toward the ground. This guidance of the two belt return sections 4, 5 is advantageous because the two belt return sections 4, 5 can be driven by at least one driving pulley 32, which is located on a single shaft and/or by means of Only one motor drive.

The two belt runs 4 , 5 extend on different radii via deflection rollers 31 a , 31 f , 31 d , 31 e. The two belt runs 4 , 5 can thus be spaced vertically apart from one another.

By means of this assisting device 30 , the belt return runs 4 , 5 are subjected to additional tension. If the belt return 4 , 5 spans a longer distance along the machine, tension differences in the belt return 4 , 5 can have a negative effect on the strand quality. The tension in the belt runs 4 , 5 can be kept constant by means of the auxiliary device 30 or tension differences can be avoided.

For driving the drive wheel 32 it can be connected, for example, to an additional drive. The tension difference is thus also further reduced. In addition, the drive pulley 32 and/or at least one deflection roller 31a-f can each have a swivel lock 20 (see FIG. 2 ) not shown here, so that when the textile machine 10 is stationary, even the 5 slack, and they will not turn back.

In addition, the drive pulley 32 and/or the deflection rollers 31b, 31c can be displaceable, so that when vertically moving the drive pulley 32 of the belt return section 4 and/or when vertically displacing the deflection rollers of the belt return section 5 31b, 31c can be tightened stronger or weaker.

The auxiliary device 30 is preferably arranged here between the machine start or segment start 14 and the machine end or segment end 15 (see FIG. 2 ). Of course, the position can also be off-centre if the tension difference can be sufficiently reduced.

It is advantageous for this embodiment of the assisting device 30 of FIG. 5 that it can be designed especially slim. The auxiliary device can especially be arranged in the brewing area.

Furthermore, it is advantageous for particularly long textile machines 10 if more than one auxiliary device 30 is distributed over the length of the machine. The tension difference in the belt return runs 4 , 5 is thus also reduced even better.

FIG. 6 shows a schematic side view of the assisting device 30 and the obstacle 33 . The assisting device 30 has a drive pulley 32 and a plurality of deflection rollers 31 a - j which are arranged in such a way that the assisting device 30 guides the two belt return sections 4 , 5 around an obstacle 33 . The obstruction 33 can be, for example, a transmission module or another component of the textile machine 10 . The auxiliary device 30 can additionally drive the two belt return sections 4 , 5 , as already described. For this purpose, the assisting device 30 can have an additional drive (not shown here), which drives the drive wheel 32 and/or one or more of the deflection rollers 31 a - j , for example.

Belt return 4 , coming from the left at speed v2 in FIG. 6 , first deflects upwards at deflection roller 31 a in the direction of drive pulley 31 d. From there, the belt return 4 deflects downwards in the direction of the drive pulley 32 . The belt return 4 runs below the drive pulley 32 and is deflected upwards in the direction of the deflection roller 31e. From there, the belt return 4 runs downward again, where it is deflected by deflection rollers 31 h in such a way that it again runs along the machine side of the textile machine 10 .

Belt return 5 , coming from the right at speed v1 in FIG. 6 , first deflects upwards at deflection roller 31i. There it is deflected by deflection roller 31 g towards deflection roller 31 f , where belt return 5 is deflected upwards towards drive pulley 32 . There it extends over the drive pulley 32 in order to be guided to the deflection roller 31c. The belt return 5 is guided there towards the deflection roller 31 b and finally to the deflection roller 31 j and is deflected in such a way that it again runs along the machine side of the textile machine 10 .

With this arrangement of drive pulley 32 and deflection rollers 31 a - j it is thus possible to guide belt return run 4 , 5 around obstacle 33 . The tension difference in the two belt returns 4 , 5 can also be further reduced by means of the driven drive pulley 32 .

Additionally or alternatively, the drive pulley 32 and/or the at least one deflection roller 31a-j can also each have a swivel lock 20 (see FIG. 2 ), so that the belt return sections 4 , 5 do not move when the textile machine 10 is stationary. turn back.

Since the belt return 4 extends below the drive pulley 32 and the belt return 5 extends above the drive pulley, the two belt returns 4, 5 are reversed by the drive pulley 32 (which rotates in the direction of rotation DR). drive and/or steer toward the ground. This guidance of the two belt return sections 4, 5 is advantageous because the two belt return sections 4, 5 can be driven by at least one driving pulley 32, which is located on a single shaft and/or by means of Only one motor drive.

The two belt returns 4 , 5 again extend on different radii via deflection rollers 31 a , 31 j , 31 h , 31 i . The two belt runs 4 , 5 can thus again be spaced vertically apart from one another.

Furthermore, the drive pulley 32 and/or deflection rollers 31b-g are displaceable so that the two belt runs 4, 5 can be more or less tensioned.

A top view of two assisting devices 30 , 30 ′ is shown schematically in FIG. 7 . The deflection rollers 31 a - h , the function of the deflection rollers 31 a ′ - h ′ and the extension of the belt return runs 4 , 5 , 4 ′, 5 ′ will not be explained here, since this corresponds to the content of FIG. 6 . It should also be noted here that in this top view the deflector roller 31j is covered by the deflector roller 31b and the deflector roller 31i by the deflector roller 31g (this of course also applies to the deflector rollers with dashed reference numerals).

However, this exemplary embodiment has two auxiliary devices 30 , 30 ′ which are driven by the additional drive 26 . The additional drive 26 essentially comprises a motor 35 , which drives the drive wheels 32 a , 32 b , 32 a ′, 32 b ′ via a shaft 34 . The drive pulley 32b drives the belt return section 4 with a speed v2. The drive pulley 32a drives the belt return 5 with a speed v1 which is opposite to the speed v2. The drive pulley 32a' drives the belt return 4' with a speed v2'. The drive pulley 32b' drives the belt return 5' with a speed v1' which is opposite to the speed v2'.

One of these two auxiliary devices 30, 30' is also arranged respectively on the machine side of the textile machine 10, so that, as in FIG. 5' between. The belt return 4 and the belt return 4' are respectively belts, so that the belt return 4 only extends along one machine side of the textile machine 10 and the other belt return 4' extends only along the other side of the textile machine. A machine side extension. Additionally, the belt return 5 and the belt return 5' are each also belts, so that the belt return 5 only extends along one machine side of the textile machine 10 and the other belt return 5' only along the textile The other machine side of the machine is extended. The velocities v1, v1', v2, v2' can also have different values from one another.

Alternatively, these belt return sections 4, 5, 4', 5' can also extend around the entire textile machine 10 (similarly to Fig. 4), so that belt return section 4 and belt return section 4' are only one part of the belt. The same applies to the belt return sections 5 , 5 ′. Therefore, the velocities v1 and v1' can also be the same as the velocities v2 and v2'.

The invention is not limited to the examples shown and described. Even if they are shown and described in different embodiments, variants and combinations of features are likewise possible within the framework of the patent claims.

Claims (17)

1. a kind of weaving loom, especially RING SPINNING loom, it has the multiple units being arranged side by side（1）, wherein each unit（1） All have for migrating the drafter of fiber band, the fiber band of migration is twisted into twine（3）Textile apparatus, Yi Jishe Put the false-twisting device between drafter and textile apparatus（9）,

The false-twisting device（9）With at least one belt driven by drive device（11）, the belt substantial lateral In twine（3）Extended, and twine（3）It is wrapped the belt to especially Z-shape or S-shaped（11）Two reversely Reversion section（4, 5）, and at least one belt（11）Along spinning between at least one drive device and transfer Multiple units of loom (10)（1）Extend,

Characterized in that,

At least one assistance device is provided between at least one drive device and transfer（30）, it is described to assist dress Drive at least one belt with putting assisting（11）.

2. the weaving loom according to preceding claims, it is characterised in that the drive device is arranged on machine end or section Section end or local section end（14）On, and at least one belt（11）Affiliated transfer be arranged on it is another Machine end or sections end or local section end（15）On.

3. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the assistance device（30） Including at least one driving wheel（32）And/or at least one turn to roller（31a-j）, can be driven by the driving wheel described At least one belt（11）, at least one belt is made by the steering roller（11）Directional steering.

4. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that described at least one actively Wheel（32）And/or at least one steering roller（31a-j）Can elapse, so that at least one belt（11）Can More or less tighten.

5. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the assistance device（30）、 The especially driving wheel（32）And/or at least one steering roller（31a-j）So set so that around obstruction （33）To guide at least one belt（11）.

6. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that at least one belt （11）Along one or more sections or the weaving loom of the weaving loom (10)（10）One or both sides extend.

7. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that described at least one drives Device, the transfer and/or described at least one assist device（30）Equipped with two single belts of machine side （11）.

8. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that described the two of the belt Individual reverse reversion section（4, 5）So around at least one driving wheel（32）Guide so that the institute of the belt State two reverse reversion sections（4, 5）One clockwise around at least one driving wheel（32）One drawn Lead, the described two reverse reversion section of the belt（4, 5）Another counterclockwise around at least one driving wheel （32）One guide so that at least one driving wheel（32）The reverse reversion section of the belt can be driven （4, 5）, and can be driven by axle and/or motor.

9. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the two of the weaving loom Assistance device is respectively arranged with side（30）, two of which assistance device（30）, especially two assistance device（30）Two Driving wheel（32）By axle（34）And motor（35）To drive.

10. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the transfer and/ Or at least one assistance device（30）By at least one additional actuators（26）Drive.

11. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the drive device and institute State additional actuators（26）Synchronous driver is interconnected to by control device.

12. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that described at least one drives Device and/or the additional actuators（26）With three-phase alternating current motor.

13. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that for driving two belts （11）At least one drive device be single motor, and/or two belts（11）With single transfer.

14. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that for driving two belts （11）At least one drive device have at least two motors so that each belt（11）Can be by single motor Drive and/or there is single transfer respectively.

15. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that described at least one drives Device carrys out drive belt at different rates（11）.

16. according to any one of preceding claims or multinomial described weaving loom, it is characterised in that the drive device, institute State transfer and/or the assistance device（30）With revolution dead lock（20）, so as to prevent the belt（11）Especially exist Turned round when it stops.

A kind of 17. false-twisting devices, it has belt and drive device, and the false-twisting device has described in preceding claims Feature and for by any one of preceding claims or multinomial described weaving loom（10）.