WO2013163914A1

WO2013163914A1 - Spinning machine

Info

Publication number: WO2013163914A1
Application number: PCT/CN2013/073679
Authority: WO
Inventors: Zhenyuan JIN; Junjie AN; Zhenyu Zhang; Xudong Yang; Arnulf Sauer
Original assignee: Oerlikon Textile Gmbh & Co. Kg; Oerlikon Textile Technology (Beijing) Co. Ltd.
Priority date: 2012-04-06
Filing date: 2013-04-03
Publication date: 2013-11-07
Also published as: CN104271817B; CN104271817A; EP2834396A4; CN103361751A; EP2834396A1

Abstract

A spinning machine for the production of synthetic yarns, which has at least one spinning device (l ), one godet device (2), one winder device (3) and one control device (4). The control device (4) possesses a main control unit(20) for controlling and monitoring a plurality of drives (5.1,7.1,10.3, 11.1,12.1,14.1,15.1) distributed to the spinning device(l), the godet device(2) and the winder device (3), the drives (14.1,15.1) of the winder device (3) being preceded by a winder control unit (21). In order to obtain as short control times as possible during the variation of operating states, at least one of the drives (7.1) of the spinning device (l) is coupled directly or indirectly to the main control unit (20) via the winder control unit (21).

Description

Spinning Machine

The invention relates to a spinning machine for the production of synthetic yarns, according to the precharacterizing clause of Claim 1, and to a method for controlling a spinning machine of this type, according to the precharacterizing clause of Claim 11.

In the production of synthetic yarns by means of a spinning machine, first a plastic melt generated by a melt source, for example an extruder, is distributed under pressure with the aid of a spinning pump to a plurality of spinning nozzles. The spinning nozzles have in each case on their underside a multiplicity of nozzle bores through which a multiplicity of filaments are extruded. The filaments spun per spinning nozzle are in each case combined, after cooling, into a filament bundle and are wetted with a preparation agent.

After further treatments, preferably in the form of drafting by means of a godet unit, the yarns generated from the filament bundles are wound next to one another in parallel on a winder device to form bobbins. Spinning machines have thus far a spinning device, a godet device and a winder device which cooperate in order to produce the synthetic yarns. In this case, the device is produced in a yarn group from what is known as a spinning station which can be controlled separately. In practice, the production of synthetic yarns is carried out by means of a multiplicity of such spinning stations.

In order to coordinate the operating flow, in particular, of the drives of the individual devices, a control device is provided. Control devices of this type usually have a central main control unit, by means of which an operator can carry out direct action upon the operating flow of a spinning station. A generic spinning machine of this type is known, for example, from DE 100 39 093 Al .

In the known spinning machine, the devices for controlling the drives are assigned a plurality of separate control units which are connected to the main control unit. The system is based on the fact that the drives of the devices which are involved within the spinning station in producing the yarns can be controlled next to one another in parallel by means of separate control units.

IEM120015PCT In the production of synthetic yarns, however, operating states arise which necessitate rapid implementation in varying the drives. Thus, it is customary, in the event of a yarn break of one of the yarns, to stop abruptly the entire operation of winding all the yarns, so as to avoid the formation of laps in the devices which precede the winder device. The result of this is that the yarn warp generated continuously from the spinning device is severed and is discharged to a waste container by means of suction extraction. In this phase, the throughput in the extrusion of the filament strands is reduced as far as possible, in order to keep the yarn waste generated per unit time low. In the known spinning machine, the implementation of the control commands necessary for this purpose is initiated via the central main control unit. The transmission and processing of data and signals lead to correspondingly long control times in order to implement the desired operating changes on the drives.

The object of the invention, therefore, is to develop a spinning machine of the type mentioned in the introduction, in such a way that as short a reaction time as possible for the variation of operating states in the production of synthetic yarns can be implemented.

A further aim of the invention is, in the event of a process interruption and at the start of a process, to be able to control as synchronously as possible the drives of the spinning machine which are critical for the production process.

This object is achieved, according to the invention, in that at least one of the drives of the spinning device is coupled directly or indirectly to the main control unit via the winder control unit.

Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims.

The invention possesses the special advantage that the drives of process assemblies which critically influence the material flow in the production of the yarns are coupled to one another. Thus, it is customary that the monitoring of the yarn runs directly precedes the winder device, so that, in the event of a yarn break, the operating states in the devices receiving the yarn are changed as quickly as possible. To that extent, the informa- tion present in the winder device can be utilized directly in order to use this information directly in the activation of one of the drives of the spinning device.

According to an advantageous development of the invention, the pump drive of a spinning pump of the spinning device is preferably used in order to be driven at a changing operating rotational speed as a function of an operating state of the winder device. By means of the rotational speed of the spinning pump, essentially the melt throughput of the spinning nozzles, which has to be maintained in relation to the winding speed so as to avoid yarn breaks, is determined.

To that extent, advantageously, a pump controller of the pump drive can be used directly in order to obtain a direct or indirect tie-up to the winder control unit. Basically, in this case, two different alternative tie-up possibilities are afforded. In a first variant, the pump controller can be connected directly to the winder control unit via a control line, so that the winder control unit generates the corresponding control signals for changing the pump rotational speed. Alternatively, however, there is also the possibility that the pump controller is coupled to the winder control unit solely via a signal line which can be linked to the signals of a control line within the pump controller.

For this purpose, the development of the invention has proved especially appropriate in which the pump controller of the pump drive of the spinning pump has one link to the winder control unit. Thus, the state prevailing from the electronic drive unit can be imparted directly to the pump controller via a signal line. Thus, control signals and information signals can directly bring about the desired operating state.

Since the operating states which may arise within the spinning machine during the production of a yarn are known and can be distinguished essentially for a spinning pump by a creep rotational speed, a ramp up rotational speed and a production rotational speed, the development of the invention is especially advantageous in which the pump controller of the pump drive of the spinning pump has a software module, by means of which a plurality of settings of different operating rotational speeds can be predetermined. Thus, for example in the case of digital signals, each signal combination, such as, for example, 01, 10 or 00, can be assigned in each case from one of the operating rotational speeds. In order as far as possible to link a plurality of drives within the spinning device to the drives of the winder device, the development is provided in which the winder control unit is connected to a subcontrol unit, and in which the subcontrol unit is provided for controlling and monitoring the respective drive of the spinning device. Thus, in addition to the spinning pump, the supply of a preparation agent can also advantageously be adapted to the material flow of the yarn. To that extent, the subcontrol unit is preferably assigned a plurality of controllers of a plurality of drives of the spinning device, one of the controllers and drives being assigned to a metering pump, by means of which a preparation agent for wetting the yarns is conveyed.

Since the spinning device usually also contains drives which influence the generation of the melts, the melts, as a rule, being distributed to a plurality of spinning stations, the development of the invention is especially advantageous for controlling a plurality of spinning stations of a spinning machine. For this purpose, the main control unit is assigned, parallel to the winder control unit, a spinning control unit which precedes at least some of the drives of the spinning device.

In modern spinning machines the doffing, drafting and winding of the yarns by means of highly compact structural units in which the godet device and the winder device are coupled to one another. For spinning machines of this type, the development of the invention is preferably implemented in which the drives of the godet device are connected to the main control unit via the winder control unit. Thus, the winder control unit can be utilized for controlling and monitoring all the drives of the take-up system in a coordinated way.

The method according to the invention, in which at least one of the drives of the spinning device is controlled directly or indirectly via the winder control unit, is distinguished especially in that the material waste occurring during a process interruption can be minimized.

In particular, for this purpose, the method variant is implemented in which the drive of a spinning pump of the spinning device drives at changing operating rotational speeds, and in which the operating rotational speeds of the spinning pumps are changed as a function of an instantaneous operating state of the winder device. Consequently, in the spinning machine, within a spinning station the extruded quantity of yarn material and the yarn material received by the winder is constantly maintained in the desired ratios.

The variant is in this case especially advantageous in which a control signal and an information signal are supplied simultaneously to the pump controller, so that the two signals can be linked to form a control command. Thus, basically, via the control signal, a plurality of possible operating rotational speed settings can be imparted, which in each case lead to one of the intended operating rotational speeds as a function of the information signals.

In this case, the information signal is preferably generated directly from an electronic drive unit of the winder device, so that any change in the electronic drive unit can be immediately supplied as information directly to the pump controller of the spinning pump.

The spinning machine according to the invention is explained in more detail below by means of some exemplary embodiments, with reference to the accompanying figures in which:

Fig. 1 illustrates diagrammatically a view of a first exemplary embodiment of the spinning machine according to the invention

Fig. 2 illustrates diagrammatically a further exemplary embodiment of the spinning machine according to the invention

Fig. 3 illustrates a diagrammatic illustration of a pump drive with a pump controller Fig. 4 illustrates diagrammatically a view of a further exemplary embodiment of the spinning machine according to the invention.

Fig. 1 illustrates diagrammatically a view of a spinning machine according to the invention, only the components critical for explaining the invention being shown. In Fig. 1, a spinning station for producing a group of synthetic yarns is shown. Spinning machines of this type usually have a plurality of such spinning stations which can be controlled independently of one another in each case for the production of a group of yarns. The spinning machine has in the spinning station a spinning device 1 , a godet device 2 and a winder device 3 which are normally arranged vertically one below the other to form a yarn run.

The spinning device 1 has a heated spinning beam 8 on the underside of which a plurality of spinning nozzles 9 are held. In this exemplary embodiment, for example, four spinning nozzles 9 are shown on the underside of the spinning beam 8. On the top side of the spinning beam 8 is arranged a spinning pump 7 which is designed as a multiple pump and which is connected to the spinning nozzles 9 via a distributor system, not illustrated in anymore detail here. Thus far, each spinning nozzle 9 is supplied with a separate feed stream of a polymer melt. For this purpose, the spinning pump 7 has a pump drive 7.1 and a pump controller 7.2.

In this exemplary embodiment, the polymer melt is generated by an extruder 5. The extruder 5 is operated via an extruder drive 5.1 and an extruder controller 5.2.

Arranged on the outlet side of the extruder 5 is a distributor line 6, by means of which the polymer melt is distributed to the spinning stations of the spinning machine. The spinning pump 7 is thus coupled to the extruder 5 via the distributor line 6.

The spinning nozzles 9 arranged on the underside of the spinning beam 8 have on their undersides in each case a nozzle plate, not illustrated here, with a multiplicity of nozzle bores, in order to extrude a multiplicity of filaments out of the nozzle bores. Each of the spinning nozzles 9 illustrated thus generates, during operation, a multiplicity of filaments which, after cooling, are combined into a filament bundle.

The cooling of the filaments takes place by means of a cooling device 30 which is formed directly beneath the spinning beam 8. The cooling device 30 has blowing means, not illustrated in anymore detail here, in order to cool the freshly extruded filament strands by means of a cooling air. For this purpose, the cooling-air stream is provided via a blower 27 which is operated by means of a blower motor 27.1 and a blower controller 27.2 In order to make it possible for the yarn warp to be taken up from the spinning device 1 , the spinning device 1 also has, furthermore, a spin- finish device 10 which has a spin-finish pin 10.1 per yam. The spin- finish pins 10.1 are connected to a metering pump 10.2 via a supply line 10.5. The metering pump 10.2 is operated via the pump drive 10.3 and the pump controller 10.4.

In this exemplary embodiment, for doffing and drafting the yarns 19 taken up from the spinning device 1, the godet device 2 is formed by two godets 11 and 12, around which the yam warp is partially looped. The godet 11 is driven via the godet drive 11.1 and the godet 12 via the godet drive 12.1, both godet drives 11.1 and 12.1 being operated via a common group controller 13. Such a design of the godet device 2 is suitable particularly for generating partly drafted yams (pre-oriented yams).

To receive the drafted yarns, the winder device 3 is designed with two spindles 14 and 15 which are held on a rotatable turret 17 so that the yarns 19 can be wound into bobbins without any appreciable interruption. The spindle 14 is assigned a spindle drive 14.1 and the spindle 15 is assigned a spindle drive 15.1.

The rotation of the turret 17 in the winder device 3 takes place via a turret drive 17.1. Spindle drives 14.1 and 15.1 and the turret drive 17.1 are operated via an electronic drive unit 18 in which the assigned controllers are held.

In order to wind the yarns into cross-wound bobbins in each winding station within the winder device 3, a traverse device 16 is arranged in the entry region of the winder device 3 and has in each case one traversing point per yarn. The traverse device 16 is driven via a traverse drive 16.1 The traverse drive 16.1 is likewise controlled via the electronic drive unit 18 of the winder device 3.

In order to control and monitor the drives in the spinning device 1 , godet device 2 and winder device 3, a control device 4 is provided. For this purpose, the control device 4 has a main control unit 20. The main control unit 20 is preferably formed by a microprocessor in the form of a PC, in order to enable displays and operating actions to be carried out by an human operator. The main control unit 20 is assigned like an interface between a human operator and the control device 4. The human operator has the possi- bility to make a setpoint control at every control unit 21, 22 or 23. Thus, the extruder controller 5.2 for controlling the extruder drive 5.1 , the blower controller 27.2 of the blower motor 27.1 and the pump controller 10.4 of the pump drive 10.3 of the metering pump 10.2 are connected directly to the spinning control unit 22. The tie-up between the controllers 5.2, 10.4 and 27.2 preferably takes place via a BUS system.

Correspondingly, the godet control unit 23 is connected directly to the group controller 13. To control the drives of the winder device 3, the electronic drive unit 18 is coupled directly to the winder control unit 21.

In order to avoid delays in carrying out variations particularly in the event of operating state changes which arise in the case of a process interruption or the start of a process within the spinning station, the winder control unit 21 is additionally connected via a control line 25 to the pump controller 7.2 of the pump drive 7.1 of the spinning pump 7. Consequently, in particular, changes of state on account of yarn breaks, which necessitate an adaptation of the material throughput, can be implemented directly within the winder control unit 21.

It may be mentioned expressly at this juncture that the secondary drives, sensors and actuators assigned to the control units 21, 22 and 23 are not illustrated here for the sake of clarity. Thus, it is customary that, for example, the winder device 3 is assigned per yarn run a yarn-break sensor which is coupled directly to the winder control unit 21 via a signal line. To that extent, the signal paths for data transmission and for control without the inclusion of the main control unit 20 may be designed in such a way that rapid reaction times for varying the feed stream can be implemented within the spinning device. Thus, it is customary that, in the event of an automatic interruption because of a yarn break, the operating rotational speed of the spinning pump 7 is set to a low value which, in this example, is designated as the creep rotational speed. Since, in the process interruption phase, the yarn warp extruded in the spinning device 1 is discharged continuously to a waste container, the loss of polymer melt material can be minimized by means of the reduced delivery rate of the spinning pump 7.

As soon as the fault on a godet device 2 or in the winder device 3 is rectified, piecing of the yarn warp in the godet device 2 and the winder device 3 takes place. For this pur- pose, the drives of the godet device 2 and of the winder device 3 are preferably operated at a ramp up rotational speed which necessitates an increase in the material throughput in the spinning device. To that extent, the spinning pump 7 is driven via the pump drive 7.1 at the ramp up rotational speed which is higher than the creep rotational speed.

As soon as the operation of piecing the yarn warp in the godet device 2 and the winder device 3 is concluded, all the drives are ramp up to a desired production rotational speed. This change in operating rotational speeds in the winder device 3 can be executed essentially simultaneously with the raising of the production rotational speed of the spinning pump 7. The direct tie-up, illustrated in Fig. 1, of the pump controller 7.2 to the winder control unit 21 is therefore especially suitable for obtaining low material waste during a process interruption.

Fig. 2 illustrates diagrammatically a further exemplary embodiment of the spinning machine according to the invention. In the exemplary embodiment according to Fig. 2, the spinning device 1 and winder device 3 are designed identically to the abovementioned exemplary embodiment according to Fig. 1 , and therefore they are not explained any further.

The godet device arranged between the spinning device 1 and winder device 3 is formed in this exemplary embodiment by two godets 11 and 12 which are assigned in each case a separate roll 31.1 and 31.2. The godet 11 and the separate roll 31.1 form a godet unit, around which the yarn warp is multiply looped. For this purpose, the godets 11 are operated via a godet drive 11.1 and a godet controller 11.2.

The godet 12 forms with the separate roll 31.2 a further godet unit, the godet 12 being operated by the godet drive 12.1 and the godet controller 12.2. The godets 11 and 12 are driven with a speed difference in order to draft the yarns 19. This design of the godet device 2 is employed particularly for the production of fully drafted yarns (full-draw yarn).

To control the godet drives 11.1 and 12.1, the assigned godet controllers 11.2 and 12.2 are connected directly to the winder control unit 21 of the control device 4. The winder control unit 21 is assigned to the main control unit 20 as well as to a spinning control unit 22. To that extent, all the drives belonging to a take-up system are controlled jointly via the winder control unit 21.

The control device 4 used in the exemplary embodiment according to Fig. 2 represents an exemplary embodiment in which one of the drives of the spinning device 1 is connected indirectly to the main control unit 20 via the winder control unit 21. In this exemplary embodiment, the pump controller 7.2 of the pump drive 7.1 of the spinning pump 7 has two inputs. Thus, the pump controller 7.2 is connected directly to the spinning control unit 22 via a control line 25. The pump controller 7.2 is coupled to the electronic drive unit 18 of the winder device 3 by means of a signal line 26 via the second input. Thus, for example, a digital information signal can be routed via the signal line 26 directly from the winder device 3 to the pump controller 7.2, this information signal being linked together with a control signal supplied to the pump controller 7.2 via the spinning control unit 22 and the control line 25, in order to form a control command.

For this purpose, one possible design of the pump controller 7.2 is illustrated diagram- matically in Fig. 3. The pump controller 7.2 has two inputs 28.1 and 28.2. Connected to the input 28.1 is the control line 25 which may be formed, for example, by a BUS system to exchange signals and data in both directions between the controller 7.2 and the included spinning control unit 22.

Connected to the second input 28.2 is the signal line 26 which makes a connection to the electronic drive unit 18 of the winder device 3. Via this, for example, digital signals can be supplied to the pump controller 7.2 in order, for example, to indicate an operating state of one of the spindle drives. Thus, binary signals of the signal line 26 and control line 25 could be brought about in a simple way by the interlinking of different operating states. For this purpose, the pump controller 7.2 has a software module 29 which could stipulate various operating states by programming. Thus, for example, three different operating rotational speeds of the spinning pump could be predetermined, which are imparted to the pump drive 7.1 as a function of the linking of the binary signals. For this purpose, the pump drive 7.1 is connected directly to the pump controller 7.2 via an output 32. The exemplary embodiment, illustrated in Fig. 2, of the spinning machine according to the invention is identical in its function to the exemplary embodiment according to Fig. 1, and therefore no further explanation is given at this juncture.

Fig. 4 shows a further exemplary embodiment of the spinning machine according to the invention which is essentially identical to the exemplary embodiment according to Fig. 1. Only the differences are to that extent explained below.

In the exemplary embodiment illustrated in Fig. 4, the godet device 2 and the winder device 3 are combined into a structural unit, the godet device 2 being held on an end face of the winder device 3. The godet device 2 has two driven godets 11 and 12 which are driven via the assigned godet drives 11.1 and 12.1. The godet drives 11.1 and 11.2 are connected for control to the electronic drive unit 18 of the winder device 3. All controllers required for controlling the drives are integrated within the electronic drive unit 18.

In this exemplary embodiment, the control device 4 has a main control unit 20 and a winder control unit 21 and also a spinning control unit 22. The spinning control unit 22 is in this case connected to the extruder controller 5.2 of the extruder drive 5.1 and to the blower controller 27.2 of the blower motor 27.1. To activate the other drives in the spinning device, the winder control unit 21 is assigned a subcontrol unit 24 which is coupled to the pump controllers 7.2 and 10.4. The pump controller 7.2 of the pump drive 7.1 of the spinning pump 7 is additionally connected to the electronic drive unit 18 of the winder device 3 via the signal line 26.

In the exemplary embodiment, illustrated in Fig. 4, of the control device 4, all the drives within the spinning station, which acquire a changing operating rotational speed during a process interruption or the start of a process are jointly controlled via the winder control unit 21. In this case, for the direct activation of the controllers 7.2 and 10.4 of the spinning device 1, a separate subcontrol unit 24 is provided which is connected directly to the winder control unit 21. Thus, in addition to the material throughput during the spinning of the yarns, the application of spin finish can also be adapted quickly, and without serious delay, in respect of each operating state. According to the embodiments to Fig. 1 to Fig. 4 the extruder controller 5.2 of the extruder drive 5.1 is connected with the spinning control unit 22. The extruder 5 is a general melt source to provide several spinning devices 1 with a polymer melt. Since the extruder controller 5.2 has to consider not only the process situation of one of the spinning devices it is also possible that the extruder controller 5.2 is directly connected with the main control unit 20. In Fig. 4 the connection line between the extruder controller 5.2 and the main control unit 20 is shown with a broken line.

The exemplary embodiments according to Fig. 1 to Fig. 4 constitute only some variants of spinning machines. Basically, within a spinning station, the spinning device 1, godet device 2 and winder device 3 may be provided with additional process assemblies. Irrespective of the detailed design of the individual devices within the spinning station, the spinning machine according to the invention possesses the special advantage that the spinning of the yarns and the winding of the yarns can be controlled virtually synchronously. The generation of the mass flow and the reception of the mass flow during yarn production can thus advantageously be coordinated with one another in the production process.

List of Reference Symbols

1 Spinning device

2 Godet device

3 Winder device

4 Control device

5 Extruder

5.1 Extruder drive

5.2 Extruder controller

6 Distributor

7 Spinning pump

7.1 Pump drive

7.2 Pump controller

8 Spinning beam

9 Spinning nozzle

10 Spin-finish device

10.1 Spin-finish pin

10.2 Spin-finish pump

10.3 Pump drive

10.4 Pump controller

10.5 Supply pipe

11 Godet

11.1 Godet drive

11.2 Godet controller

12 Godet

12.1 Godet drive

12.2 Godet controller

13 Group controller

14 Spindle

14.1 Spindle drive

15 Spindle

15.1 Spindle drive

16 Traverse device

16.1 Traverse device Turret

Turret drive

Electronic drive unit

Yarn

Main control unit

Winder control unit

Spinning control unit

Godet control unit

Subcontrol unit

Control line

Signal line

Air blower

Air blower drive

Air blower controller

Input

Software module

Cooling device

Separate roll

Output

Claims

Patent Claims

1. Spinning machine for the production of synthetic yarns, with at least one spinning device (1), one godet device (2), one winder device (3) and one control device (4) which has a main control unit (20) for controlling and monitoring a plurality of drives (5.1, 7.1, 10.3, 11.1, 12.1, 14.1, 15.1) distributed to the spinning device (1), godet device (2) and winder device (3), the drives (14.1, 15.1) of the winder device (3) being preceded by a winder control unit (21), characterized in that at least one of the drives (7.1) of the spinning device (1) is coupled directly or indirectly to the main control unit (20) via the winder control unit (21).

2. Spinning machine according to Claim 1,

characterized in that

the drive, as the pump drive (7.1) of a spinning pump (7), is assigned to the spinning device (1) which can be driven at changing operating rotational speeds as a function of an operating state of the winder device (3).

3. Spinning machine according to Claim 1 or 2,

characterized in that

the pump drive (7.1) is assigned a pump controller (7.2), and in that the pump controller (7.2) is connected directly or indirectly to the winder control unit (21) by means of a control line (25) and/or signal line (26).

4. Spinning machine according to Claim 3,

characterized in that

the pump controller (7.2) of the pump drive (7.1) of the spinning pump (7) has two inputs (28.1, 28.2) for the tie-up of the control line (25) and signal line (26) coupled to the winder control unit (21), the signal line (26) forming a direct connection to an electronic drive unit (18) of the winder device (3).

5. Spinning machine according to Claim 4,

characterized in that the pump controller (7.2) of the pump drive (7.1) of the spinning pump (7) has a software module (29), by means of which a plurality of settings of different operating rotational speeds can be predetermined.

6. Spinning machine according to one of Claims 1 to 4,

characterized in that

the winder control unit (21) is connected to a subcontrol unit (24), and in that the subcontrol unit (24) is provided for controlling and monitoring the respective drive (7.1) of the spinning device (1).

7. Spinning machine according to Claim 6,

characterized in that

the subcontrol unit (24) is connected to a plurality of controllers (7.2, 10.4) of a plurality of drives (7.1, 10.3) of the spinning device (1).

8. Spinning machine according to Claim 7,

characterized in that

one of the controllers (7.2, 10.4) and drives (7.1, 10.3) are assigned to a metering pump (10.2), by means of which a preparation agent for wetting the yarns is conveyed.

9. Spinning machine according to one of Claims 1 to 8,

characterized in that

the main control unit (20) is connected, parallel to the winder control unit

(21) , to a spinning control unit (22), and in that the spinning control unit

(22) precedes at least some of the drives (5.1) of the spinning device (1).

10. Spinning machine according to one of Claims 1 to 9,

characterized in that

the drives (11.1, 12.1) of the godet device (2) are connected to the main control unit (20) via the winder control unit (21).

11. Method for controlling a spinning machine with a plurality of drives which are distributed to a spinning device, a godet device and a winder device, in which the drives are controlled and monitored via a main control unit, and in which the drives assigned to the winder device are controlled as a drive group, by a winder control unit being interposed, characterized in that at least one of the drives of the spinning device is controlled directly or indirectly via the winder control unit.

12. Method according to Claim 11,

characterized in that

the drive of a spinning pump of the spinning device drives at changing operating rotational speeds, and in that the operating rotational speeds of the spinning pump are changed as a function of an operating state of the winder device.

13. Method according to Claim 12,

characterized in that

a control signal and an information signal are imparted to a pump controller assigned to the pump drive, and in that the two signals are linked to form a control command.

14. Method according to Claim 13,

characterized in that

the information signal is generated from an electronic drive unit of the winder device.