EP1205588B1 - Control of several spinning stationes in a spinning machine - Google Patents

Abstract

In a spinning machine with many spinning points, the filament feed to each spinning point is independently regulated by a control unit receiving data registered at the respective spinning point. A spinning machine has numerous yarn (6) spinning points each preceded by a fine feed unit (1). Each spinning point is fed by a longitudinal formation of staple filament, which converges through the fine feed (1) to the yarn formation point (6). Each spinning point has sensors (10,11) registering the mass of incoming filaments and outgoing yarn. The fine feed unit (1) is independently operated by a control and monitoring unit (12). A control and monitoring unit (12) generates independent commands for the fine feed unit (1) based on data registered at the yarn spinning point (6). Data registered at the yarn spinning point are also used to independently regulate the spinning point (6) drive, especially if the yarn is spun using an air-driven process.

Description

The invention is in the field of spinning technology and relates to a Spinning machine according to the first independent claim. Furthermore, the Invention a spinning arrangement with such a spinning machine.

Commercial spinning machines for the production of yarns from staple fiber material have a plurality of spinning positions, for example two times fifty Spinning stations arranged in two rows. Every spinning station will Fiber material in the form of a longitudinal structure (e.g. fiber ribbon, sliver or roving) usually from a suitable container (jug) or from a coil fed and in the spinning station a yarn is made from the supplied fiber material educated.

The actual yarn formation takes place for example by ring spinning, pot spinning, Bell spiders, friction spiders, open rotor spiders, air spiders etc, each Spinning station for the yarn formation and winding of the formed yarn necessary parts of the device. These device parts of all spinning stations are usually via a common drive or a small number of common drives and are for individual spinning positions (thread break, Can change) can be disconnected from this drive.

Before the actual yarn formation, the supplied longitudinal structure of the fiber material refined in the spinning machine, for example by stretching or dissolving. For this The spinning machine has refinement means, ie means for refinement Stretching such longitudinal structures or means for dissolving such longitudinal structures. The Refiners are typically for all spinning positions or for a number of Spinning stations provided jointly, but can also, like the means for yarn formation be provided per spinning station. For driving the refiners usually provided for or as a single central drive for yarn formation a small number of drives, each with a drive function of the refining means take. But it is also known for every spinning station or even in every one Spinning station to use separate small drives for each drive function.

Means for refinement before yarn formation by stretching the supplied Longitudinal fiber structures have, for example, three cylinder pairs arranged in series, which are driven in the conveying direction with increasing peripheral speed. Such pairs of cylinders extend, for example, along a series of Spinning stations and are, for example, by appropriate gears from one single drive or there is one for each pair of cylinders (drive function) separate drive provided. In the sense of the above-mentioned internal spinning positions powered refiners are described in publication DE-3932614 (Murata Kikai) Spinning station-own drafting systems, each with a plurality of drives described which drafting systems can be individually adjusted. This makes it possible to produce different yarns on the same spinning machine or if necessary the stretching process to fine internal spinning position differences individually adapt.

Means for refinement before yarn formation by dissolving the supplied Longitudinal fiber structures have, for example, one feed roller for each spinning station Opening roller and the fibers in the dissolved state from the opening roller to Yarn formation leading fiber guide channel. For example, the whole the feed rollers and the entirety of the opening rollers each by a common Drive driven.

The yarns formed in the individual spinning positions are, for example, online or periodically monitored by sensors and spinning positions that fail, are decoupled from common drives. The decoupling can only do that Yarn formation or additionally the refinement preceding the yarn formation affect.

It is also known that yarn formation (e.g. in air spinning processes) at each spinning station monitor online or through periodic measurements and yarn formation to individually regulate serving machine parts during the spinning process or adjust. Such regulations or attitudes concern, for example Air supply to spinnerets or the speed of take-off rolls downstream of Spinnerets are arranged. Appropriate methods and devices are for example described in the publications EP-0289010 (Rieter) or EP-0365931 (Schubert & Salzer).

On yarns that are produced with the spinning machines briefly described above, high demands are made, especially regarding their regularity with regard to Fiber mass per unit length. According to the state of the art, these are high Requirements met by the fact that the fiber longitudinal structure before the Spinning machine are fed in a smoothing process that before includes multiple, consecutive cycles of mixing and stretching be evened out to a very high degree. This ensures that the Longitudinal structures supplied to spinning stations meet the requirements for regularity already meet and that it suffices the refinement and spinning parameters constant during the spinning process and especially in every spinning position in the to keep essentially the same.

For example, to even out the fiber material before spinning a plurality of so-called regulating drafting systems are used, in which one A plurality of incoming longitudinal fiber structures (for example from a card or from upstream regulating drafting system) and the fiber mixture is stretched. To even out the fiber mass per unit length, use Mass measurements at the entrance and / or exit of the drafting device Stretch ratio controlled or regulated, in that the speed at least of a pair of cylinders in the drafting system is changed. Such drafting devices obtain the longitudinal fiber structures from storage containers (cans) and lay the produced ones Longitudinal fiber structures also in storage containers from which the Longitudinal fiber structures finally a spinning machine or a spinning station are fed. The management of these storage containers is very complex, especially if it is to be carried out fully automatically. Without automation or with only partial automation is the management of the storage containers labor intensive and prone to errors.

The object of the invention is to create a spinning machine, the yarns can produce high regularity with regard to fiber mass per unit length, even if the fiber material fed to the spinning positions is less high Has regularity than for known spinning machines for the same Yarn quality would have to be required.

This object is achieved by the spinning machine as described in the claims is defined.

In a spinning machine equipped in this way it becomes possible to have at least one part the uniformity with regard to fiber mass per unit length in each spinning station directly and continuously, so that at least a part of the the state of the art discontinuously (with the help of cans or coils) carried out equalization steps superfluous. It may even be possible to complete discontinuation steps of equalization do without, which means that a completely continuous spinning process in the Range of the possible.

If the fiber longitudinal structure the spinning positions of the spinning machine according to the invention in the sense of a continuous spinning process and if between upstream devices providing the longitudinal fiber structures and Spinning positions, for example, areas with free sag of the fiber longitudinal structures as Buffers are provided, it is also possible to operate within limits set by the Spinning processes and by the formation of the spinning station are predetermined, the performance of the individual spinning positions to the filling level of the buffer or to the performance of the adapt upstream device. To do this, a spinning station as a whole for driven an increase or decrease in their performance. As a buffer for one direct connection of a device providing a longitudinal fiber structure and one Spinning station of the buffer machine to be provided according to the spinning machine according to the invention can, for example, connect a card and a draw frame Buffer memory, which is known from the publication WO-99/11847, correspondingly be adjusted.

Another advantage of the spinning machine according to the invention is that for the Piecing (after thread break or can change) refining agents and if necessary, yarn forming agents can also go through a piecing cycle is completely independent of other spinning positions and in which the speeds of moving parts, for example, increase continuously. This is the piecing significantly easier than with state-of-the-art machines in which moving parts only when spinning onto one with constant speed running drive can be coupled, resulting in a stepped or leads to at least a very steep increase in the corresponding speeds.

In the simplest case, sensor means of the spinning machine according to the invention detect each spinning position the mass of fibers in the area of the entrance of the refining agent and the infeed speed becomes the refinement agent by appropriate Control of the refining agent varies accordingly. Others, too Applicable control methods are known from regulating drafting systems or cards are usually used as regulation (closed loop control) from the actuator downstream measuring element and / or as a control (open loop control) with realized by the actuator upstream measuring element. Thereby with the Regulation usually compensates for relatively long-wave fluctuations and with that Control of relatively short-wave fluctuations.

To compensate for irregularities or detected by the sensor means Fluctuations in the fiber mass are essentially the delay in the spinning station Fiber mass varies, in that the speed of entry of the fiber mass into the Spinning station and / or the speed at which the yarn runs out of the spinning station is controlled or regulated accordingly.

In the case of a feed control, the fiber longitudinal structures become the spinning positions advantageously supplied from cans or from coils, so that devices that the Longitudinal fiber structures deliver from fluctuations in the entry speed into the Spinning positions are not affected.

For a spout control, this is in addition to the refining agent To train yarn forming agents in a controllable manner. This is within relatively wide limits and with a relatively high speed especially possible for air spinning processes, for the yarn properties within relatively wide limits of the spinning speed are independent and in which there is no change in the spinning speed large masses must be accelerated or braked (small inertia). Such air spinning processes can be wrong rotating or at least partially be real rotating (so-called vortex spinning processes) and are usually included Using a spinneret and a pair of draw cylinders. The fiber twist is generated in the spinneret by a fluid supplied to the nozzle. For one These are changes in the spinning speed and / or the spinning delay Trigger pair and control the Fludi supply accordingly. On Air spinning process, which is suitable for a spinning position-internal spout regulation, like them is briefly described above, is particularly suitable, is described for example in the Swiss patent application 1845/00 (filing date: September 22, 2000).

Ring spinning, open end and friction spinning processes are less suitable for the above outflow regulation described, since for these processes the yarn properties in only narrow areas are independent of the spinning speed. A wider one Area in which the yarn properties are independent of the spinning speed, still has the pot spinning process. However, this procedure is because of relatively large, rotating masses not very much for a discharge regulation suitable.

Known control or regulating methods for the equalization of fiber masses designed for regulating drafting systems or cards are for refinement agents from individual spinning positions of the spinning machine according to the invention Applicable and necessary machine parts can be done by a specialist adapt easily to the application according to the invention. Such tax and Regulatory procedures are described, for example, in the following publications: WO-99/66113 (Rieter, regulating drafting system), EP-176661 (Zellweger, Regulating drafting system), US-4864694 or US-4506414 (Zinser, regulating drafting system), EP-340756 (Trützschler, regulating drafting device), EP-649923 (Howa, regulating drafting device), DE-3703450 and DE-3703449 (Trützschler, Karde).

Figur 1

eine beispielhafte Spinnstelle mit Spinnstellen-eigenem Streckwerk und Spinnstellen-eigener Steuerung und Regulierung des Streckwerkes (Einlauf) zur Vergleichmässigung der Fasermasse pro Längeneinheit des in der Spinnstelle erzeugten Garnes;

Figur 2

eine weitere, beispielhafte Spinnstelle mit Spinnstellen-eigenem Streckwerk und Spinnstellen-eigener Steuerung und Regulierung des Streckwerkes und der Garnbildung (Auslauf) zur Vergleichmässigung der Fasermasse pro Längeneinheit des in der Spinnstelle erzeugten Garnes;

Figur 3

eine weitere, beispielhafte Spinnstelle mit Spinnstellen-eigenem Streckwerk und Spinnstellen-eigener Steuerung und Regulierung des Streckwerkes und der Garnbildung (Einlauf und Auslauf) zur Vergleichmässigung der Fasermasse pro Längeneinheit des in der Spinnstelle erzeugten Garnes;

Figur 4

weitere mögliche Sensorpositionen für Spinnstellen gemäss Figuren 1 bis 3;

Figur 5

eine beispielhafte Spinnstelle mit Spinnstellen-eigener Anordnung zur Auflösung eines zugeführten Faserverbandes und Spinnstellen-eigener Steuerung und Regulierung der Auflösemittel und der Garnbildung (Einlauf und Auslauf) zur Vergleichmässigung der Fasermasse pro Längeneinheit des in der Spinnstelle erzeugten Garnes;

Figur 6

weitere mögliche Sensorpositionen für Spinnstellen gemäss Figur 5.

Exemplary embodiments of the spinning machine according to the invention are described in detail with reference to the following schematic figures. All figures each show only one spinning station of the spinning machine according to the invention. The entire spinning machine has a plurality of such spinning stations arranged in at least one row. From the figures show:

Figure 1

an exemplary spinning station with spinning station-own drafting system and spinning station-own control and regulation of the drafting system (infeed) to even out the fiber mass per unit length of the yarn produced in the spinning station;

Figure 2

a further, exemplary spinning station with a spinning station-own drafting system and spinning station-own control and regulation of the drafting arrangement and the yarn formation (outlet) to even out the fiber mass per unit length of the yarn produced in the spinning station;

Figure 3

a further, exemplary spinning station with a spinning station-own drafting system and spinning station-own control and regulation of the drafting system and the yarn formation (inlet and outlet) to even out the fiber mass per unit length of the yarn produced in the spinning station;

Figure 4

further possible sensor positions for spinning positions according to FIGS. 1 to 3;

Figure 5

an exemplary spinning station with a spinning station-specific arrangement for the dissolution of a supplied fiber structure and spinning station-own control and regulation of the dissolving means and the yarn formation (inlet and outlet) to even out the fiber mass per unit length of the yarn produced in the spinning station;

Figure 6

further possible sensor positions for spinning positions according to FIG. 5.

Figure 1 shows very schematically a spinning station of an exemplary embodiment of the spinning machine according to the invention. The spinning station has its own drafting device 1 (refining agent 1) with, for example, three cylinder pairs (inlet cylinder 2, middle cylinder 3 with straps 4 and outlet cylinder 5) as internal spinning unit refining means 1. Furthermore, the spinning station has a yarn-forming means 6, which for example consists essentially of a nozzle arrangement 7 and a pair of take-off cylinders 8 for an air spinning process, as well as a yarn winding device 9. A first mass sensor 10 is provided upstream of the inlet cylinders 2 of the drafting device 1, which detects the fiber mass of the longitudinal fiber structure supplied to the drafting device 1. A second mass sensor (so-called yarn cleaner) is provided between the draw-off cylinder pair 8 and the yarn package 9, which detects the fiber mass of the yarn produced. The measurement data generated by the sensors 10 and 11 are fed to a control and monitoring unit 12.

Inlet cylinder 2 and middle cylinder 3 of the drafting system 1 are from a first Motor M.1 driven in such a way that the longitudinal fiber structure between them Cylinder pairs experiences a constant advance. The speed of the engine M.1 is variable and is detected by a speed sensor Z.1. The engine M.1 is by means of Control data from the control and monitoring unit 12 based on the measurement data of Sensors 10 and 11 are generated, controlled. Outlet cylinder 5 of the drafting device 1 and take-off cylinder 8 of the yarn forming means 6 are operated by a further motor M.2 driven such that their peripheral speeds are one for the present Have a suitable yarn formation ratio (spinning delay). The speed of this other motor M.2 is detected by the speed sensor Z.2 and with suitable means kept constant.

The stretching arrangement according to FIG. 1 essentially corresponds to an arrangement such as it is known per se from regulating drafting systems. The control and monitoring unit 12 processes the measurement data of the in a manner known per se from regulating drafting systems Sensors 10 and 11 to control signals based on the speed of the first motor M.1 is regulated. This will result in a suitable delay due to the Sensor 10 detected irregularities in the fiber mass compensated by Variation of the inlet speed (inlet cylinder) and variation of the warpage between central cylinders 3 and outlet cylinders 5 (variable draft 20). With This control can be used to correct short-wave irregularities in particular be evened out. Irregularities in fiber mass from downstream sensor 11 on the finished yarn are detected in processed in the same way, this being a regulation that can not even out short-wave irregularities.

The spinning station shown in FIG. 1 thus has a controlled in a known manner or regulated drafting system, the infeed speed being varied and the The outlet speed is constant, that is, the yarn formation with constant Delivery speed can be operated. This does not rule out that Yarn formation itself or the yarn created with regard to other quality features (not Regularity regarding fiber mass) can be monitored by sensors and Corresponding parameters of this yarn formation (e.g. air flow in a spinneret) can be varied.

A spinning machine according to the invention therefore has a large number (for example two hundred) spinning stations, all of which are equipped, such as those in the Figure 1 shown spinning station. The M.2 can be connected to the other motor All or a plurality of the spinning stations can be coupled and also the Control and monitoring unit 12 can be the entirety of the spinning stations or one Serve majority of them. At least those are assigned to each spinning station individually Pairs of inlet cylinders 2 and middle cylinders 3 of the drafting system, the sensors 10 and 11 and the first motor M.1 or a stepless replacement for this motor controllable gear between a central drive and each spinning station.

For the integration of a spinning machine with spinning stations according to FIG. 1 in one Spinning arrangement, the fiber longitudinal structures from the spinning positions Supply containers fed. A direct and continuous feed, for example from a card or from a draw frame is only possible if between the Spinning station and the upstream device a buffer with a sufficiently large Buffer capacity is arranged with which buffer variations in the Infeed speed can be bridged into the drafting system without that the upstream device must be controlled accordingly. Such a Buffer can simply be designed as a free sag of the longitudinal fiber structure, which sag is monitored by sensors. When exceeding a lower or upper limit of the buffer capacity, the spinning station is stopped or a Upstream device (card, drafting system) controlled accordingly, so that Delivery speed to the fill level of the buffer and / or to the Infeed speed in the spinning station internal drafting system is adjusted.

A stretching controlled internally according to FIG. 1 and constant Yarn formation is particularly applicable for spinning processes for which a change the delivery speed of the yarn formation a change in the yarn properties would require or for which a relatively rapid change in delivery speed yarn formation is not possible for mechanical reasons. Such spinning processes are for various reasons, as already mentioned above, for example Ring spinning process, friction spinning process, pot spinning process, Bell spinning process and open-end rotor spinning process.

FIG. 2 again shows a spinning station with a drafting unit 1 internal to the spinning station and yarn-forming means 6 for a spinning machine according to the invention, as shown in FIG. The same parts are labeled with the same reference numbers. In contrast to the spinning station according to FIG. 1, in this embodiment the first motor M.1 is operated at a constant speed and the further motor M.2 is controlled accordingly. In other words, irregularities with regard to fiber mass, which are detected by sensors 10 and 11, are compensated for by varying the outlet speed (outlet cylinder 5) from the drafting system, which requires corresponding variations in the delivery speeds of the yarn-forming agent 6. The speeds of the take-off cylinders 8 according to FIG. 2 for a constant spinning delay are coupled to the outlet cylinders 5 in terms of drive) and the winding 9 as well as any yarn formation parameters (fluid supply to the spinneret) must be variable and controllable by control signals generated by the control and monitoring unit 12, such as this is indicated in Figure 2 by corresponding arrows.

A control / regulation of the spinning positions of an inventive Spinning machine with spinning stations according to Figure 2 is particularly suitable for one direct and continuous feeding of fiber longitudinal structures to the spinning stations and for Spinning process, the delivery speed without influencing the Yarn properties are variable over a relatively wide range. Such spinning processes are, as already mentioned above, in particular air spinning processes. Since the Infeed speed to the spinning unit-internal drafting system can be constant buffering before this entry or at least to a large buffer capacity to be dispensed with.

FIG. 3 shows a spinning station for a spinning machine according to the invention, in which spinning station the control / regulation according to FIGS. 1 and 2 are essentially combined. While the motors M.1 and M.2 have variable speeds and are controlled by the control and monitoring unit 12, only the middle cylinder pair 3 is operated by a third motor M.3 at a constant speed. This results in two places of variable delay 20 and 20 '. For such control / regulation of the spinning stations, limit values must be specified for the first variable warping, the second variable warping, the spinning speed, further spinning parameters and, if appropriate, for buffer capacities upstream of the drafting unit 1. The operation of each spinning station must be kept or set within the specified limits, if it is not possible to operate without crossing borders. The control unit can also control the delivery speed of a device (card or drafting device) upstream of the spinning machine, which supplies several spinning stations directly and continuously with fiber material, in such a way that the capacity is optimally utilized, i.e. the upstream device and the spinning stations are operated in this way ( or not operated for spinning positions) that the output of yarn is maximum.

In the spinning station according to FIG. 3, instead of the preliminary delay (position variable Delay 20 ') or in addition also the spinning delay (variable delay 20 ") be included in the control. For this purpose, the pair of discharge cylinders 5 of the drafting unit 1 and the withdrawal cylinder pair 8 of the yarn forming means 6 decoupled from one another in terms of drive, for example by separate motors are operated (motor M.4, dash-dotted).

The spinning station according to FIG. 3 is also suitable for a performance variation of the Spinning station as a whole to adapt this performance to the delivery performance of a upstream device or device providing the longitudinal fiber structure to be spun to spin on.

FIG. 4 again shows a spinning station with a spreader-internal drafting system 1 for a spinning machine according to the invention, as is already shown in FIGS. 1 to 3. In addition to the sensors 10 for a control and 11 for a long-wave control, there are further possible sensor positions 10.1 (between the inlet cylinder 2 and the center cylinder 3 for a control), 11.1 (between the center cylinder 2 and the outlet cylinder 5, immediately after the variable draft 20, for a relatively short-wave control) and 11.2 and 11.3 (between outlet cylinder 5 and nozzle arrangement 7 and between nozzle arrangement 7 and discharge cylinder 8, both for regulation). The measurement data from sensor positions 10 and 10.1 (upstream of the variable draft 20) are used for warp control, the measurement data from sensor positions 11, 11.1, 11.2 and 11.3 (downstream of the variable draft 20) are used for draft regulation.

There is at least one for each spinning position of the spinning machine according to the invention Arrange mass sensor, as already mentioned in connection with Figure 1 advantageously two, one upstream and one downstream of the Variable delay 20 is to be arranged.

Claims (16)

1. Spinning machine with a plurality of spinning positions, each with a means (6) for the formation of yarn, with which a staple fibre material conducted to the spinning position in the form of a longitudinal pattern is processed by spinning to form a yarn, and each with a refinement means (1), with which the longitudinal fibre pattern conducted to the spinning position is refined before the yarn formation, whereby the refinement means (1) of each spinning position can be driven and controlled independently of other spinning positions, each spinning position has at least one sensor means (10, 11 ) for the acquisition of at least one property, correlated with the fibre mass per length unit, of the fibre material conducted to the spinning position or processed and/or of the yarn formed in the spinning position, and that, in order to compensate irregularities in relation to the fibre mass per length unit of the fibre material conducted to each spinning position, the spinning machine further has at least one control and monitoring unit (12), which processes the measured data generated by the sensor means (10, 11 ) of a spinning position to form control data for the control of the refinement means (1) of the same spinning position,
   characterised in that
   the yarn formation means (6) operate according to the vortex spinning method, and that the yarn formation means (6) are entirely independent of other spinning positions.
2. Spinning machine according to Claim 1, characterised in that an intake-side part (2, 30) of the refinement means (1) of each spinning position can be driven and controlled independently of other spinning positions, while the outlet-side part (5, 31) of the refinement means and of the yarn formation means (6) is operated with essentially constant operating parameters.
3. Spinning machine according to Claim 1, characterised in that an outlet-side part (5) of the refinement means (1) of each spinning position can be driven and controlled independently, while an intake-side part (2, 30) of the refinement means (1) is operated with essentially constant operating parameters.
4. Spinning machine according to Claim 1, characterised in that both an intake-side part (2, 30) of the refinement means (1,1') as well as an outlet-side part (5, 31) of the refinement means (1, 1') and/or the yarn formation means (6, 7) can be driven and controlled independently of other spinning positions.
5. Spinning machine according to one of Claims 3 or 4, characterised in that the yarn formation means (6) is equipped for an air-spinning method with a nozzle arrangement (7) with fluid infeed and a pair of sliver calendars (8), whereby a drive unit (M.2) of the pair of sliver calendars (8) and the fluid delivery to the nozzle arrangement (7) is variable and controllable.
6. Spinning machine according to one of Claims 1 to 5, characterised in that the refining means (1) is a means for stretching or a means for opening up the fibre longitudinal pattern conducted to the spinning position.
7. Spinning machine according to Claim 6, characterised in that the refinement means (1) is a drafting device with a pair of infeed rollers (2) and a pair of delivery rollers (5), and that the pair of infeed rollers (2) and/or the pair of delivery rollers (5) can be driven and controlled independently of other spinning positions.
8. Spinning machine according to Claim 6, characterised in that the refinement means (1') exhibit a feed roller (30), an opening cylinder (31), and a fibre guide channel (32) conducting the fibres to the yarn formation, and that the feed roller (30) and/or the yarn formation means (6) can be driven and controlled independently of other spinning positions.
9. Spinning machine according to one of Claims 1 to 8, characterised in that the sensor means (10, 11 ) are arranged in the area of the intake of the fibre longitudinal pattern into the refinement means (1) and/or in an area downstream of the yarn formation means (6).
10. Spinning machine according to one of Claims 1 to 9, characterised in that the minimum of one control and monitoring unit (12) is equipped for the optimisation of the production of the spinning machine.
11. Spinning machine according to one of Claims 1 to 9, characterised in that the minimum of one control and monitoring unit (12) is equipped for controlling a starting spinning cycle.
12. Spinning machine according to one of Claims 1 to 11, characterised in that the minimum of one control and monitoring unit (12) is equipped for controlling performance variations of entire spinning positions.
13. Spinning system arrangement with a spinning machine according to Claim 2 or 4, said arrangement having storage containers from which longitudinal fibre strands are conducted to the spinning positions.
14. Spinning system arrangement with a spinning machine according to Claim 3 or 4, said arrangement having at least one device upstream of the spinning machine from which longitudinal fibre strands are conducted directly and continuously to the spinning machine.
15. Spinning system arrangement according to Claim 14, characterised in that the minimum of one device upstream of the spinning machine is a carding machine or an draw frame.
16. Spinning system arrangement according to one of Claims 14 or 15, characterised in that buffer means for the buffering of longitudinal fibre strands are provided between the minimum of one device upstream of the spinning machine and the spinning positions of the spinning machine.

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