WO2021078558A1

WO2021078558A1 - System for managing the electrical energy supply of a textile factory with a winder device

Info

Publication number: WO2021078558A1
Application number: PCT/EP2020/078574
Authority: WO
Inventors: Sylvain Roch Alexandre HUCK
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2019-10-22
Filing date: 2020-10-12
Publication date: 2021-04-29
Also published as: CN114555499A; DE102019007321A1

Abstract

The invention relates to a system and a method for managing the electrical energy supply of a textile factory with a winder device, the winder device (8) having at least one first winder (8.1) and one second winder (8.2), the first and the second winder having two rotatable first and second coil mandrels (24, 25), each having a first drive motor (M1) and a second drive motor (M2), characterised in that a predetermined number of drive motors of the first and/or second winder are started in a staggered manner relative to one another within a predetermined time window.

Description

System for managing the electrical power supply of a textile factory with a winding device

The invention relates to a system for managing the electronic energy supply of a textile factory with a winding device, a method for managing the electrical energy supply of a textile factory with a winding device and a textile factory with corresponding systems and methods.

To produce synthetic threads, a plurality of threads are simultaneously obtained from a polymer melt, spun into synthetic threads and then wound onto a plurality of tubes by means of winders.

The winding of the synthetic threads takes place by means of a plurality of Wick learners, which have a reel turret with at least two reel mandrels.

The reel turret and the reel mandrels each have their own electric drives. Such a winder is known, for example, from EP 1 723064 B1.

When operating such a winder, the greatest power consumption occurs when all drives are supplied with power at the same time. Particularly in a textile factory, in which a plurality of winding devices are provided one behind the other and in a row, power consumption peaks can occur if several winders and their electric drives are started up and accelerated at the same time.

The power consumption peaks cause major deviations in the basic consumption of power, so that the power supply and the entire power supply network must be designed for maximum consumption, which requires higher investment costs overall both in the electrical power grid and for the regular power consumption.

The object of the invention is therefore to provide a system for managing the electrical energy supply of a textile factory, a method for managing the electrical energy supply of a textile factory and a textile factory that cost can be operated inexpensively and environmentally friendly, the total power consumption can be reduced.

The object is achieved for the system according to the invention with a system having the features according to claim 1.

According to one aspect, a system for managing the electrical energy supply of a textile factory with a winder is provided, the winder having at least a first winder and a second winder, the first and the second winder having two rotatable first and second spool tensioning mandrels each having one first drive motor and a second drive motor, characterized in that a predetermined number of drive motors of the first and / or second winder are started with a time offset relative to one another within a predetermined time window.

For example, the electrical energy management system controls the start of a second drive motor of a reel mandrel of a first winder such that another drive motor of another second winder is not started at the same time as the second drive motor of the first winder, taking into account a predetermined time window. A time window here is a limited time span between two or more events that have already been set in time, such as the change in position of a reel mandrel from a doffer position to a winding position and vice versa. A time window is also to be understood here as a time period within which the respective drives are started one after the other with a time difference and are supplied with power, e.g. to be accelerated to a predetermined winding speed.

This has the advantage that there are no consumption peaks in the textile factory due to the simultaneous starting of a large number of drive motors at once. This advantageously reduces the overall consumption of electricity.

Advantageous further developments of the system result from the respective subclaims. According to one embodiment of the system for managing the electrical energy supply, the first and the second bobbin mandrel are movable between a first position for winding a thread on a tube and a second position for doffing a full tube by means of a bobbin turret driven with a bobbin turret drive, the Power consumption of the respective drive motors is monitored, and / or the respective drive motor of at least the winder of one winder device relative to the winder of another winder device in the predetermined time window is started with a time offset from one another when a posi tion change of the respective reel mandrel from the first position to the second position and vice versa takes place.

A doffer position is understood here to mean a position of the bobbin mandrel in which full tubes, which have a thread package made of wound thread, can be removed, i.e. dofed, from the stationary bobbin mandrel. After the full tubes have been doffed, empty tubes are mounted on the empty bobbin mandrel, which are then provided with a thread package in the winding position of the bobbin mandrel. In the winding position for winding the thread onto the tube, the bobbin tensioning mandrel is rotated at a predetermined speed.

According to one embodiment of the system for managing the electrical energy supply, the drive motor of the reel mandrel is not supplied with power in the second position, wherein when the reel mandrel is moved from the second position to the first position, the time of acceleration / power supply of the drive motor of the The winder of the one winder device is offset in time relative to the acceleration / power supply of the drive motor of the winder of the other winder device.

Here, a non-power supply of the respective drive motor is essentially to be understood as meaning that the respective drive motor is not supplied with the amount of electrical current required to move the associated reel mandrel or reel turret at the predetermined rotational speed. According to one embodiment of the system for managing the electrical energy supply, the first drive motor, the second drive motor and / or the reel turret drive can be controlled via a CPU, which sets the respective drive motor to a predetermined rotational speed and starts, accelerates and brakes the respective drive motor in the managed predetermined time window.

A CPU (central processing unit) here is to be understood as a processor embedded in the system, a central processing unit or central processing unit (ZVE) for computers or computer-like devices for executing commands.

According to one embodiment of the system for managing the electrical energy supply, a power consumption, a time start point, a duration and a time end of the power consumption of the respective drive are recorded in a power consumption-over-time diagram, the recording of the respective power consumption using software , by means of measuring devices and / or by means of software and measuring devices.

The recording and evaluation of the power consumption and the time can be carried out purely on the basis of software. Software sensors and / or suitable power consumption measuring devices such as ammeters or ammeters can be used for the detection. A power consumption-over-time diagram is to be understood here as a time-based representation of the current power consumption in a graphical form.

According to one embodiment of the system for managing the electrical energy supply, the drive of a reel turret and / or the first or the second winder is started with a time offset relative to the drive of a reel turret and / or the first or the second winder of the other winder device, the time window in which a drive is started with a time offset, the duration of the commissioning, the duration for starting and accelerating a reel mandrel and / or the duration of the shutdown, the duration of the start-up and rotation of the reel mandrel from the second position to the first position and vice versa . The time window can also be determined by other electricity consumers via other out-of-date and / or commissioning times, e.g. B, then the time window is also determined by the starting and / or braking times of the respective reel tensioning mandrels, the reel turret or compressed air generating devices.

Commissioning and decommissioning are to be understood here in each case as a power supply for an electrical consumer, such as the drive motors of the reel mandrel and / or the reel turret.

The object is achieved for the method according to the invention with a method having the features according to claim 7.

According to one aspect, a method for managing the electrical energy supply of a textile factory with at least one winder is provided, the winder having at least a first winder and a second winder, the first and the second winder each being rotatable first and second spool mandrels each having a first one Have drive motor and a second drive motor, characterized in that a predetermined number of drive motors of the first and / or second winder are started with a time offset relative to one another within a predetermined time window.

According to one embodiment of the method for managing the electrical energy supply, the method has the steps:

Detecting the total power consumption of each individual winder; Determination of the filling level of the tubes of each winder device whose bobbin mandrel is in the first position for winding a thread on the tube.

Determining the time window for accelerating the reel mandrel in the second position to a predetermined winding speed, taking into account the power consumption of each reel mandrel which is to be accelerated from the second position to winding speed for the first position. Staggered acceleration of the reel mandrels in the second position from different winders to the winding speed for the first position within the time window.

A winding speed is to be understood as the rotational speed that the bobbin tensioning mandrel needs to wind up the thread to form a thread package.

Monitoring the power consumption of the drive motors of the spool tensioning mandrels,

Check whether all electricity consumers have been recorded.

Determine the number of drive motors of the winder that are to be supplied with power.

Calculation of the time window taking into account the duration of the positioning of the winder from the first position to the second position, with the recording of the respective power consumption using software, measuring devices and / or a mixture of software and measuring devices.

The method steps can also be carried out in a different order and are not bound to the above order.

According to the invention, the object is achieved for the textile factory with a textile factory having the features according to claim 10.

Advantageous further developments of the invention emerge from the respective sub-claims.

The system according to the invention, the method according to the invention and the textile mill according to the invention are described in more detail below with reference to different embodiments with reference to the accompanying figures. They represent:

Fig. 1 is a schematic plan view of a textile factory for producing and winding up a synthetic thread with a plurality of winding devices;

2 shows a schematic side view of a filament spinning device and a winder with and without a stretching device,

3 shows a schematic view of a winder of a winder device with a reel turret with a first and a second reel mandrel with fa denbepackten and empty tubes,

Fig. 4 and Fig. 5 is a schematic view showing the change of the bobbin turret egg nes bobbin mandrel from the first position with filled tube with thread package in the second position for doffing the filled tubes,

Fig. 6 to Fig. 8 show the electrical power consumption over the time of a ge in Fig. 3 to 5 winder with bobbin turrets and first and second bobbin clamping mandrels,

9 shows the power consumption over time of a plurality of winders with a reel turret and a reel mandrel,

10 shows the power consumption over time of a plurality of winders, the power consumption of which is managed according to the system and method according to the invention,

11 shows a schematic block diagram of the method according to the invention for managing the energy consumption of a plurality of winders.

Fig. 1 shows a schematic plan view of a textile factory 1 for Her provide a synthetic thread F. The textile factory 1 has a Schmelzeerzeu generation device 2, a melt distribution device, a filament spinning device 4 and a winder 8 or a plurality of winder 8 on.

The melt generating device 2 can be, for example, an extruder which forms a spinning melt from granules for producing a synthetic thread F's. The melt generating device 2 can also be a polycondensation device which forms the polymer melt required for the synthetic thread from different chemical constituents.

The melt generating device 2 adjoins the melt distribution device 3 which, for example, has corresponding lines and cooling devices or melt processing devices in order to lead the melt to the filament spinning device 4.

In Fig. 2, a filament spinning device 4 is shown schematically in a side view.

The filament spinning device 4 produces a synthetic thread F from the synthetic melt, which thread can be wound onto tubes 20 by means of the winder device 8 or a plurality of winder devices 8.

A winder device 8 can have a plurality of winders 8.1, 8.2, 8.3, ... 8.4, where n is a natural number and stands for the number of winders provided. The winders can be arranged in rows L1, L2 to Ln next to one another and with sufficient spacing A1, A2, A3, An one behind the other. The distance A is selected in each case so that there is sufficient space for removing full sleeves 20 'and feeding in empty sleeves 20.

The filament spinning device 4 shown in FIG. 2 has a spinning box 40 with a nozzle package 5, a thread guide 7 and a filament cooler 6, via which the synthetic thread F can be produced from a plurality of filaments. Furthermore, a stretching device 10 with godets is indicated schematically offset from the filament spinning device 4 in FIG. 2, which can optionally be provided for fully or partially hiding the thread F.

The thread F is then wound onto a sleeve 20 made of paper or plastic with the winder 8.1 of the winder device 8. An embodiment of the winder 8.1, 8.1, 8.2, ... 8.n of the winder device 8 is shown in more detail in FIG. The winding device 8 is not limited to the embodiment shown in FIG. 3.

Each winder 8.1, 8.2, ... 8.n has a rotatable first reel mandrel 24 and a second reel mandrel 25 with its own electric drive M1, M2. For positioning between a first winding position W1 and a second Dofferpositi on D2, the spool clamping mandrels 24, 25 are rotatably mounted by means of a turntable 21 of a Spulenre volvers 200.

As shown in FIG. 3, the reel turret 200 has the turntable 21. The turntable 21 has an electronic drive Msk. By means of the drive Msk, the turntable can be rotated about an axis Ask in order to be able to move the reel mandrels 24, 25 from a winding position W1 to a doffer position D2 and vice versa. The positions W1 and D2 are shown schematically in FIGS. 4 and 5 for the reel mandrel 24 and 25.

A plurality of sleeves 20, 20 'are each clamped firmly on the first reel mandrel 24 and on the second reel mandrel 25. In the winding position W1, the winding mandrel 24, 25 is operated to catch and take up the synthetic thread F at a predetermined winding speed.

In Fig. 3, the first reel tension 24 is in a doffer position for dispensing the fully wound, e.g., cross wound, bobbins 100 onto the tubes 20 '.

The second bobbin-tensioning mandrel 25 is fitted with a plurality of empty tubes 20 in order to wind a plurality of threads F onto the empty tubes 20 in each case.

To improve and dense packing of the bobbins 100 on the sleeves 20, a friction roller 23 with its own electric drive MF1 and a traversing device 19 with a traversing thread guide 22 with its own electrical drive MC1 are provided. By means of the traversing device 19 and the chan- Yaw thread guide 22, the thread F according to the traversing triangle 300 can be wound into a kreuzge wound bobbin 100 on the respective sleeve 20.

In Fig. 3 only one traversing device 19 is shown schematically. Usually, a number of traversing devices 19 with corresponding traversing fibers is provided denführer for the same number of sleeve 20 or threads.

The traversing device 19 can, depending on the required bobbin speed and the required bobbin winding quality, have, for example, a rotor traverser, in particular a special bi-rotor, a reciprocating thread shaft with a grooved roller and / or a belt transmission. In Fig. 3, a reverse thread shaft traversing device with traversing thread guide 22 and its own drive MC1 is shown. The thread guide 22 is guided back and forth by means of helically wound grooves in the inverted thread shaft within the traversing triangle 300 shown.

It can also be seen from FIG. 3 that each reel mandrel 24, 25 has its own electric drive M1, M2, which can be controlled by means of communication lines 50, 51. Each drive M 1, M2 accelerates the respective bobbin mandrel independently to the required number of revolutions, so that, for example, the synthetic thread F can be wound onto the respective tube 20 at sufficient speed.

4 and 5 show in a schematic view how the first bobbin tensioning mandrel 24 with a thread-wound tube 20 'is moved from the winding position W1 shown in FIG. 4 to the doffer position D2 shown in FIG .

The spool mandrel 24 with the full sleeves 20 'is slowed down from the winding speed to a zero rotation speed and the spool mandrel 25 with the empty sleeves 20 is accelerated to a Aufwickelgeschwin speed, while at the same time the electric drive M _{Si <of} the turntable 21 the first spool mandrel 24 in the doffer position moves and the bobbin mandrel 25 moves with the empty tubes 20 into the winding position W1. In this case, current is fed to the respective drives M1, M2, Msk. 6a, 6b, and 7 each show, in a power consumption versus time diagram, the electrical power consumption of a winder 8.1 with a reel turret and a first and second reel mandrel 24, 25 and the associated electric drives M 1, M2 and MSK , as well as the beginning t_start and the end t_end of the power supply.

In Fig. 6a, the electrical power consumption of the first bobbin clamping mandrel 24 is shown schematically, which is braked abge from the winding position W1 into a doffer position D2. As can be seen from this, the drive M 1 for operating the reel mandrel is constantly supplied with current P1, then the power supply is reduced and thus the power consumption also falls until the reel mandrel for the doffer position is completely idle at time t_end.

In Fig. 6b, the electrical power consumption of the second bobbin clamping mandrel 25 is shown schematically, which is accelerated from the doffer position D2 in a winding position W1. At t_start, drive M2 is supplied with power. The power consumption increases until the drive M2 is accelerated to the winding speed, and remains essentially constant.

7 shows the start t_start and the end t_end of the power consumption of the drive Msk of the reel turret 200. That is, to rotate the reel plate and to change the position of the reel mandrels 24, 25 from the winding position W1 to the doffer position D2 and vice versa, the power consumption increases and then falls again.

Fig. 8 shows the total consumption of the first and second drive motors M1, M2 together with the drive Msk of the reel turret from Fig. 6a, 6b and 7. In particular, the simultaneous start-up of the drive M2 to accelerate the reel mandrel to the winding speed and the rotation of the Spool mandrels 24, 25 from the winding to the doffer position cause a voltage consumption peak P.

9 shows, in a current consumption-over-time diagram, a maximum current consumption Pmax of a plurality of winders 8.1, 8.2, 8.3 and 8.4, if all The winder and the bobbin turret are operated simultaneously in order to move a bobbin mandrel with packed tubes 20 'into the doffer position D "and to move a bobbin mandrel with empty tubes 20 into the winding position W1 and to accelerate it to the winding speed. As can be seen from this, the timely start results in an overall higher power consumption Pmax, since the power consumption peaks 151, 152, 152, 153 take place in time.

Fig. 10 shows in a power consumption-over-the-time diagram, the Stromver consumption of the plurality of winding devices 8 for the winders 8.1, 8.2, 8.3, 8.4, which are operated with the inventive system and method for managing the electrical energy supply.

It can be seen from this that the power consumption peaks 180, 182, 182, 183 of the individual winders 8.1. , 8.2, 8.3, 8.4 are offset within a predetermined time window in such a way that the respective current peaks 180, 181, 182, 183 are not arranged one above the other but next to one another and thus the total current consumption Pmax-new is reduced compared to the total current consumption Pmax from FIG could. This is achieved in that the individual drives M 1, M2, Msk are not operated at the same time, but rather offset in time to one another. In particular, the drive M 1 M2 of the reel mandrel 24,25 in the doffer position D2 of a winder 8.1, which is accelerated from the zero speed number of revolutions to the winding number of revolutions, is started offset to the drive of the reel mandrel of another winder 8.2, which is already at the winding speed is accelerated, but is still in the doffer position.

The time window can have a constant duration or be variable for each winder.

Before the tube 20 'is completely thread-packed, the drive of the bobbin mandrel in the doffer position D2 with the empty bobbin 20 can be accelerated to a predetermined rotation, the drive of the bobbin mandrel with the empty bobbin 20 of one winder being offset in time to the drive of one Another Spu lens tensioning mandrel is started with an empty tube 20 of another winder. According to a method for managing the electrical energy supply of a textile factory 1, a predetermined number of drives M1, M2, Msk of a first and / or second winder 8.1, 8.2 are started with a time offset relative to one another.

11 shows a schematic block diagram of an embodiment of a method for managing the electrical energy supply.

In step S100, the total power consumption of each individual winder 8, 8.1, 8.2, 8.3, in particular the power consumption of each drive, is recorded. In step S101 it is checked whether all electricity consumers - here the drives M1, M2, Msk - of the respective winder have been detected. If <Yes>, the process proceeds to step S200. Step S101 is optional.

In step S200, the filling state of the tubes 20 'of each reel mandrel is determined in the winding position W1. This can be used to set the start of a time window in which the second reel mandrel can be accelerated to a predetermined winding speed. The start is preferably calculated in such a way that there are no overlaps or voltage peaks due to the simultaneous acceleration of several winders 8.1, 8.2, ..., 8.n in the doffer position.

In step S201 it is checked whether this detection has taken place for all winders. This step is optional.

In step S300, the end of the time window is set and its duration is calculated, in which the second bobbin-tensioning mandrel with empty tubes 20 can be accelerated to the winding speed. The duration of the time window can be calculated, for example, taking into account the duration of the positioning of the winder from the first position W1 to the second position D2. The duration of the time window can also include the duration of the start-up, the duration for starting and accelerating a reel mandrel and / or the duration of the shutdown, the duration of the start-up and rotation of the reel mandrel from the second position D2 to the first position W1 and vice versa . In step S400, the bobbin mandrels in the doffer position D2 are accelerated one after the other to the drive speed with a time offset relative to the other bobbin mandrels in the doffer position D2. In step S500, the method is returned from step S100 and can be repeated until all winding devices 8 to be controlled have been managed.

List of reference symbols

1 textile factory

2 melt generating device

3 melt distribution device

4 filament spinning device

5 nozzle package

6 filament cooler

7 thread guides

8 winder

8.1, 8.2, ..., 8.p winder 10 stretching device

19 traversing device

20 tube 20 tube with thread package

21 turntables

22 traversing thread guides

23 friction roller

24, 25 first bobbin-tensioning mandrel, second bobbin-tensioning mandrel 40 spinning box

50, 51 communication line 100 cross-wound bobbin

150, 151, 152 Power consumption peak 180, 181, 182 Power consumption peak 200 winding head, winding turret 300 traversing triangle F thread

D2 doffer position, second position

M1, M2 drive motor of the first, second bobbin mandrel

Msk reel turret drive

W1 wrapping position, first position

Claims

1. System for managing the electrical energy supply of a textile factory with a winding device (8), wherein the winding device (8) has at least a first winder (8.1) and a second winder (8.2), the first and the second winder having two rotatable first and have second spool mandrels (24, 25) each with a first drive motor (M1) and a second drive motor (M2), characterized in that a predetermined number of drive motors of the first and / or second winder are started with a time offset relative to one another within a certain time window becomes.

2. System for managing the electrical power supply according to claim 1, wherein the first and the second bobbin mandrel between a first position (W1) for winding a thread (F) on a sleeve (20) and a second position for doffing (D2) a full sleeve (20 ') can be moved by means of a reel turret (200) driven by a reel turret (Msk), the power consumption of the respective drive motors (M1, M2, Msk) being monitored, and / or the respective drive motor (M 1, M2 , Msk) at least of the winder (8.1, 8.2) of a winder relative to the winder (8.2, 8.1) of one of its winder (8) is started with a time offset to one another in the predetermined time window when a change in position of the respective spool tensioning mandrel is started takes place first position in the second position and vice versa.

3. System for managing the electrical power supply according to at least one of claims 2 or 3, wherein the drive motor of the Spulenspanndorns in the second position (D2) is not supplied with power, wherein when the Spu lenspanndorn from the second position (D2) in the first position (W1) is moved, the time of the acceleration / power supply of the drive motor of the winder of the one winder device is offset in time relative to the acceleration / power supply of the drive motor of the winder of the other winder device.

4. System for managing the electrical power supply according to at least one of the preceding claims, wherein the first drive motor (M1), the second Drive motor (M2) and / or the reel turret drive (Msk) are controllable via a CPU, which sets the respective drive motor to a predetermined speed and manages the starting, acceleration and braking of the respective drive motor in the predetermined time window.

5. System for managing the electrical energy supply according to at least one of the preceding claims, wherein a power consumption (PI, P2, Psk), a time start point, a duration and / or a time end (t_start, t_end) of the power consumption of the respective drive (M1, M2, Msk ) are recorded in a power consumption versus time diagram, the recording of the respective power consumption taking place by means of software, by means of measuring devices and / or by means of software and measuring devices.

6. System for managing the electrical power supply according to claim 5, wherein the drive (M1, M2, Msk) of a reel turret (200) and / or the first or the second winder (24, 25) relative to the drive of a reel turret and verse / or the first or the second winder (24, 25) of the other winder is started with a time offset to one another, the time window in which a drive (M1, M2, Msk) is started with a time offset, the duration of the commissioning, the duration of the start-up and accelerating a reel mandrel and / or the duration of the shutdowns, the duration of starting and rotating the reel mandrel from the second position to the first position and vice versa.

7. A method for managing the electrical energy supply of a textile factory with at least one winder device (8), the winder device (8) having at least one first winder (8.1) and one second winder (8.2), the first and the second winder each being rotatable first and second Spu lens tensioning mandrels (24, 25) each having a first drive motor and a second drive motor (M1, M2), characterized in that a predetermined number of drive motors of the first and / or second winder are offset in time relative to one another within a predetermined time window is started.

8. A method for managing the electrical power supply of a textile factory according to claim 7, comprising the steps:

Detecting (S100) the total power consumption of each individual winding device, determining (S200) the filling level of the tubes of each winding device (8) whose bobbin tensioning mandrel (24, 25) is in the first position (W1) for winding a thread (F) on the tube .

Determination (S200, S300) of the time window for accelerating the reel mandrel in the second position (D2) to a predetermined winding speed, taking into account the power consumption of each reel mandrel that is to be accelerated from the second position to winding speed for the first position, offset in time Accelerating (S400) the reel mandrels in the second position of different winders to the winding speed for the first position within the time window.

9. A method for managing the electrical energy supply of a textile factory according to at least one of claims 7 or 8, comprising the steps of: monitoring the power consumption of the drive motors (M 1, M2) of the coil mandrels (24, 25),

Check (S101) whether all electricity consumers have been detected.

Determining the number of drive motors (M1, M2, Msk) of the winder that are to be supplied with power.

Calculation of the time window taking into account the duration of the positioning of the winder from the first position to the second position, with the recording of the respective power consumption taking place by means of software, by means of measuring devices and / or by means of software and measuring devices.

10. Textile factory, which has a system according to at least one of the preceding claims 1 to 6 and / or is operated according to the method according to at least one of claims 7 to 9, wherein the textile factory comprises: a Schmelzeer generating device (2) for generating a plastic melt , a filament spinning device (4) for producing a synthetic thread (F) from the plastic melt and a winder (8) for winding the synthetic thread (F).