EP1432855B1 - Method for controlling a texturing machine and a texturing machine - Google Patents

Description

The invention relates to a method for controlling a texturing machine according to the preamble of claim 1 and to a texturing machine according to the preamble of claim 8.

A generic method and a texturing machine are known from DE 30 05 746 A1.

Such texturing machines have a plurality of processing points, which are arranged side by side in a machine longitudinal side. In each processing point several processing units are arranged, each carrying out a process step to promote a given synthetic thread, to texture, stretch and wound as a curled yarn into a coil. In this case, the processing points can be grouped into several in one group, so that the multiplicity of processing points are divided into a plurality of groups of processing points.

To control the processing units in the processing station or in the group of processing stations, a central machine control unit is used in the known texturing machine. In this case, all data relevant to the control are fed to the machine control unit or entered directly.

For machine operation or machine control access to a variety of operating parameters such as process speed, process temperatures or draw ratios is required. Due to the large number of parameters as well as the multiplicity of processing points, the known method or the known texturing machine is overwhelmed in order to specifically control a processing point or a group of processing points. One Another disadvantage is given by the fact that due to the machine lengths of, for example, 20 m one for the operator who makes the data input to the central machine unit to change the process is unmanageable, especially if the operator to create a thread in the respective processing point in addition must perform.

The situation presents a particular problem for a texturing machine in which the process units are more or less driven by individual drives, as is known, for example, from WO 98/033963.

Accordingly, it is an object of the invention to provide a method for controlling a texturing machine for false twist texturing a plurality of synthetic threads in a corresponding plurality of processing stations, as well as such a texturing machine which achieves high flexibility in monitoring and control of the processing stations becomes.

This object is achieved erfindungsgemäB by a method having the features of claim 1 and by a texturing machine with the features of claim 8.

In the post-published application with publication number WO 01/92 615 similar methods and texturing machines are disclosed, but it is not disclosed that the individual stever devices are coupled to a mobile control device.

The invention is based on the fact that a further control hierarchy is introduced for controlling the texturing machine, which is assigned directly to the processing stations or the groups of processing stations. For this purpose, the processing stations are monitored and controlled independently of each other individually or the group of processing stations independent of adjacent groups of processing points by a control unit. For data exchange, the ECUs are alternately coupled to a mobile operator panel. The monitoring or the control can thus be advantageously shifted in the vicinity of the action. The HMI device will go through an operator used individually to monitor and control the plurality of processing stations or the groups of processing stations. Another advantage of the invention is that with a texturing machine yarns can be produced with different settings in the processing stations or in the groups of processing points. Furthermore, each of the processing stations or groups of processing stations can be switched off independently of the adjacent groups of processing stations for maintenance and troubleshooting. Within the control units, all parameters relevant to the process are stored. The operating data from the processing stations can advantageously be supplied directly to the control unit. Thus, an individual monitoring and control of the processing points or the groups of processing stations is possible by the control unit, which is ensured by the mobile control unit at any time immediate intervention in the monitoring and control of the processing points

The quality signals determined in the production of the crimped yarn, which are supplied to the control unit, can be advantageously read out as output data via the operating unit. This gives the possibility that the operator immediately receives information about the current process status for each processing point or for each group of processing stations. In the variant of the method according to the invention, a change in the processing of the thread could be carried out by the central machine control unit.

However, it is particularly advantageous if the process intervention is carried out directly by the operating device via the connected control unit. For this purpose, the input data are given to the control unit via the operating device.

To ensure that a central coordination of the processing points or the groups of processing points in the texturing ensured is, according to an advantageous method variant, a constant exchange of data between the operating device and the central machine control unit instead. The data exchange is advantageously realized by a radio link between the HMI device and the machine control unit. As a result, the mobility of the operating device is guaranteed unrestricted.

In a further particularly advantageous method variant for controlling the texturing machine, the operating unit is assigned an access right to monitor and / or control the processing point or the group of processing stations when connected to the control unit. In this way, inadmissible process interventions by the operator can be advantageously avoided. For example, only certain process parameters can be changed directly via the HMI device.

The process steps within a processing point are influenced directly via the control unit by the coupled to the control unit operating device according to a further advantageous embodiment. So it is advantageous if when creating a thread in a processing point all delivery plants have the same high conveying speed. Only after the thread is created, the difference in the conveying speeds, which is to a. Stretching the thread leads. The change of the process steps within the processing point can be done by the operating device and thus immediately before and after the application of the thread.

The texturing machine according to the invention with the features according to claim 8 represents the device according to the solution of the underlying task. For this purpose, the processing unit of one of the processing stations or the processing unit of a group of processing stations assigned to one of several control units, which control units with the central machine control unit are connected, and that a mobile operating device is provided, which operating device can be coupled alternately with the control units. In order to influence the processing units of one of the processing points, the operating device can thus be coupled with the associated control device, so that the control and monitoring of the processing units can be carried out directly in the vicinity of the processing point by an operator.

For controlling the processing units in the processing stations or in a group of processing stations, the operating device for data display, data input and / or data modification on a microprocessor, an output unit and an input unit, so that an operator can read the data read from a control unit display or can make a data entry or a data change directly to the HMI device. To improve the mobility of the operating device, the microprocessor of the operating device is preferably connected via a radio link to the central machine unit.

For data transmission between the control units and the process controls and between the process controls and the control units, a bus system is advantageously provided. This makes fast setting changes executable. The bus system can be designed for serial or parallel data transmission.

In order to be able to make individual adjustment changes in the processing steps of the processing stations, the processing units of the processing stations of a section can be assigned individually to one of the process controllers or in groups to one of the process controllers.

For monitoring at least one parameter within a processing point, according to an advantageous development of the invention, a sensor system is used used, which is connected to the associated control unit. The sensor signals can advantageously be applied directly to the control unit and evaluated. Depending on the evaluation, an alarm signal and, possibly, a shutdown of the relevant processing point are made in the control unit. As parameters in this case, the temperature of a motor which is detected by a temperature sensor directly on the engine, or a target speed of a drive which is detected directly by a speed sensor on a drive, or a yarn tension measurement, which is assigned for example a friction unit, for example, selected become.

With reference to the accompanying drawings, the inventive method and some exemplary embodiments of the texturing machine according to the invention are described in more detail below.

Fig. 1

eine schematische Seitenansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen Texturiermaschine;

Fig. 2

schematisch eine Draufsicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Texturiermaschine;

Fig. 3

schematisch eine Ansicht eines mobilen Bediengerätes

It represents.

Fig. 1

a schematic side view of a first embodiment of a texturing machine according to the invention;

Fig. 2

schematically a plan view of another embodiment of a texturing machine according to the invention;

Fig. 3

schematically a view of a mobile control device

In Fig. 1, a side view of a first embodiment of a texturing machine according to the invention is shown schematically The texturing machine has a machine frame, which consists essentially of a separate gate frame 2 and a process frame 3 and a winding frame 1. In the machine frame are several processing units 5.1 to 5.8 arranged a threadline. The processing units 5.1 to 5.8 provide a processing point of one. Variety of processing points. The processing points are arranged side by side in the texturing along a machine front. The side view shown in Fig. 1 lies in a plane transverse to the machine front, so that only one of the processing points is shown. In this case, the take-up devices 20 assume a width of three processing points, so that three take-up devices 20.1, 20.2 and 20.3 of three adjacent processing points in a column are arranged one above the other in the winding frame 1.

For each processing point a supply bobbin 7 is assigned in the gate frame 2, on which a thermoplastic thread 4 is wound. The thread 4 is treated by the thread running direction successively arranged processing units 5.1 to 5.8 in several process steps and wound into a coil 26. Each of the processing units 5.1 to 5.8 is assigned a process control 6.1 to 6.8. The process controllers 6.1 to 6.8 are coupled via a bus system 29 to a control unit 27.

In detail, the processing units 5.1 to 5.8 are formed by a first delivery mechanism 11, a heating device 12, a false twist texturing unit 14, a second delivery mechanism 15, a set heater 16, a third delivery mechanism 17, a traversing mechanism 19 and a coil drive 18. Here, the thread 4 is withdrawn in the processing point via a head thread guide 10 and a guide roller 9.1 under a certain tension by the first delivery mechanism 11. The first delivery mechanism 11 has an engine and a delivery shaft connected to the engine. The process control 6.1 for controlling the motor of the delivery mechanism 11 is thus designed as a converter

The thread 4 is guided within a false twist texturing zone by the heating device 12, the cooling rail 13 and the false twist unit 14.

In this case, the process control 6.2 is assigned to the temperature control of the heater 12, which is formed in this case from a heating control. The false twist unit 14 could, for example, be designed as a friction disk aggregate with a single motor drive, as is known, for example, from EP 0 744 480 (Bag 2322). The motor of the false twist unit 14 is the process control 6.3 - for example, a converter - assigned.

Subsequent to the false twist unit 14, a second further delivery mechanism 15 is used to pull the yarn 4 both through the heater 12 and through the cooling rail 13. The second delivery mechanism 15 is controlled by the process control 6.4. The delivery mechanism 15 could have the same construction as the above-described first delivery mechanism 11.

In the thread running direction behind the second delivery mechanism 15 is a set heater 16, which is also associated with a process control 6.5. Behind the set heater 16 is another third delivery mechanism 17, which guides the yarn 4 from the set heater 16 to the take-up device 20.1. The delivery mechanism 17 is associated with the process control 6.6

In the winding device 20.1, the thread 4 is wound onto a spool 26. The spool 26 is driven by a spool drive 18 at a substantially constant peripheral speed. The bobbin drive 18 has for this purpose a drive roller, which rests directly on the circumference of the coil 26. The drive roller is driven by a motor, which is coupled to the process control 6.8 Before the thread 4 runs onto the spool 26, the yarn 4 is reciprocated by a traversing device 19, so that a cross winding on the spool 26 is formed The traversing device 19th also has a drive which is controlled via the process control 6.7.

The winding device 20.1 has a bobbin storage 21 which serves to receive the full bobbins when a full bobbin has been produced on the winding device. To remove the full bobbin, a spindle carrier is pivoted and the full bobbin is placed in the bobbin storage 21. In the bobbin memory 21, the full bobbin waits until it is removed. Therefore, the bobbin memory 21 is arranged on the free side of the winding frame 1. The winding device 20.1 is further equipped with a sleeve feed device 22, which is no longer described in detail.

The processing units 5.1 to 5.8 contained in the processing station are controlled via the associated process controllers 6.1 to 6.8. The process controllers 6.1 to 6.8 are connected via a bus system 29 to a control unit 27 assigned to the processing station. The control unit 27 is coupled to a sensor system 24, which detects at least one process parameter within the processing station and signals the control unit 27. In the exemplary embodiment illustrated in FIG. 1, a thread tension sensor 24.2, which is assigned to the false twist unit 14, and a temperature sensor 24.1, which is assigned to the heating device 12, are provided by way of example as sensor system 24. Thus, for example, when exceeding or falling below a target temperature in the heater 12, the process control 6.2 can be influenced by the controller 27 such that a correction of the heating takes place.

The control device 27 and the adjacent control devices (not shown here) of the adjacent processing point are connected to a central machine control unit 34. In this case, a data exchange between the machine control unit 34 and the connected control devices 27. For machine operation or for machine control access to a variety of operating parameters such as process speeds, process temperatures, thread drawing is necessary.

In addition, the monitoring of the process generates quality data that cause an immediate action such as a thread trimming or an alarm signal. The quality data are evaluated here directly in the control unit 27 or the higher-level machine control unit 34. In order to allow immediate access to the process of the processing station, the control unit 27 has a control terminal 32. Through the control terminal 32, the controller 27 can be coupled to a mobile control unit 23. The operating device 23 can be coupled in a simple manner within the texturing machine alternately with each control device 27. The operating device 23 is connected to the central machine control 34 by a radio link 33. The operating device 23 is designed such that an operator can read and display, for example, the current process data of the current process of the respective processing point. Thus, the operator is already given the opportunity to assess the state of the current process immediately on site.

In order, for example, to be able to carry out a process correction after a thread has been applied, or to carry out a process correction in a running process, the operating device 23 can also be embodied such that an immediate data change is carried out by the operator. For this purpose, input data are given by the operating device 23 to the control unit 27. Within the controller 27, the input data such as a process speed are converted into control commands and the respective connected process controllers 6 abandoned. By virtue of the radio connection 33 present between the operating device 23 and the machine control 34, for example, the operator could check a comparison or the permissibility of the change before entering the data. However, it is also possible that information is supplied by the machine control unit 34 from the operating device 23, which cause the operator to visit a specific processing point within the texturing machine in order to perform an intervention in the process via the operating device 23.

In order to avoid impermissible process changes or machine operations, there is also the possibility that when connecting the control unit 23, the control unit 27 is assigned to the operating unit directly by the connected control unit 27 or via the radio link 33 by the machine control unit 34 a Zugtiffsrecht. This ensures a high degree of operational safety, which prevents unauthorized intervention by the operator in the process.

FIG. 2 shows a further embodiment of a texturing machine according to the invention in a plan view. The texturing machine has a plurality of processing stations 25 in the longitudinal direction. Generally, in a texturing machine, a total of 216 processing stations are indicated, of which the first three processing stations are identified by the reference symbols 25.1, 25.2 and 25.3 in FIG. In each of the processing points 25, a thread is processed in each case. The structure of the individual processing stations 25 substantially corresponds to the preceding embodiment of FIG. 1. In that regard, reference is made to the preceding description.

The adjacent processing points 25.1, 25.2, 25.3, etc. thus each have a plurality of processing units with the associated process controls on As shown in Fig. 2, the processing points 25 are arranged in a longitudinal direction one behind the other. The plurality of processing stations of the texturing machine are divided into several groups of processing stations 28.1, 28.2, etc. In Fig. 2, two complete groups 28.1 and 28.2 are shown. The groups 28.1 and 28.2 each contain a plurality of processing stations 25. In this example, twelve adjacent processing stations 25 form a group 28. Each group 28 is associated with a controller 27, so that the group 28.1 by the controller 27.1 and the group 28.2 by the controller 27.2 is controlled. In this case, the process controls the processing stations 25 a section 28 with the respective associated control unit 27 by a bus system 29th connected. In the Ausfuhnmgsbeispiel- the controller 27.1 is connected via the bus system 29.1 with the process controllers of the group 28.1. The control unit 27.2 is connected via the bus system 29.2 with the process controllers of group 28.2. In this way, all processing points of the texturing machine are divided.

The control devices 27.1 and 27.2 are coupled to the central machine control unit 34, which allows a data display and a data change in each of the connected control devices 27 for the purpose of operation. In the texturing machine shown in FIG. 2, all processing points of a group 28.1 are monitored and controlled independently of the processing points of adjacent groups 28.2 etc. by the respective associated control devices 27. Each group forms a submachine that can be operated independently of the adjacent group of processing stations. The control units 27.1 and 27.2 each have an operating terminal 32.1 and 32.2. At the operating terminal 32.2 the mobile control unit 23 is connected. By the operating device 23, the controller 27.2 data can be taken or data is given. As a result, the process in the group of processing stations 28.2 can be influenced directly by an operator on site. The operating device 23 is in constant communication via the radio link 33 with the central machine control unit 34. The connection could also be formed by a network connection. The integration and the function of the operating device 23 is in this case essentially identical to the preceding exemplary embodiment, so that reference is also made at this point to the preceding description.

In Fig. 3, a possible embodiment of an operating device 23 is shown schematically. The control unit 23 is arranged on a chassis 35 and can be performed at any point within the machine in a simple manner by an operator. The operating device 23 has a microprocessor 36, an output unit 37 and an input unit 38. The microprocessor 36 can be coupled via a connecting cable 39 with an operating terminal 32 of one of the control units 27. Via a radio link, the microprocessor 36 is in communication with the central machine control unit. The output unit 37 may be formed by a visualization system preferably a monitor, for example. The input unit 38 is preferably formed by a keyboard.

In the above-described embodiments of the texturing machine according to the invention, the number of processing stations and the number of groups of processing stations or the number of processing stations within a group of processing points is exemplary So can be summarized without problems six, eight, ten or more processing points into a group , It is possible that within a group of processing stations, each individual processing point has a position control, which also have an operating terminal, so that an operating device can be coupled.

The number and execution of the processing units within a processing station is also exemplary. The processing station may, for example, have only two delivery mechanisms, wherein the second delivery mechanism is directly followed by the take-up device. However, it is also possible to provide a plurality of delivery mechanisms as processing unit, so that, for example, between the false twist unit and the set heater two delivery mechanisms follow each other, between which another process unit for swirling the threads is arranged. The inventive method and the texturing according to the invention are characterized regardless of the design and the number of processing points in that a faster and more flexible intervention in the process is possible.

LIST OF REFERENCE NUMBERS

1

winding frame

2

creel frame

3

process frame

4

thread

5

process unit

6

process control

7

supply bobbin

9

idler pulley

10

Yarn guide

11

First delivery plant

12

heater

13

cooling rail

14

False twist unit

15

Second delivery mechanism

16

Set heater

17

Third delivery plant

18

spool drive

19

Traversing device

20

takeup

21

coil storage

22

Sleeve feeder

23

control unit

24

sensors

25

processing site

26

Kitchen sink

27

control unit

28

Group of machining points

29

Bus system

30

Yarn tension sensor

31

temperature sensor

32

operator terminal

33

radio link

34

Engine control unit

35

chassis

36

microprocessor

37

output unit

38

input unit

39

cable

Claims (13)

1. Method for controlling a texturing machine for false-twist texturing of a multiplicity of synthetic threads, with a corresponding multiplicity of processing positions, in which the processing positions or a group of processing positions are monitored and controlled by a central machine control unit, wherein the multiplicity of processing positions is monitored and controlled independently of one another individually or the group of processing positions is monitored and controlled independently of adjacent groups of processing positions by a control device assigned to the processing position or group of processing positions, and the control devices are alternately coupled to a mobile operating device for the data exchange.
2. Method according to claim 1, characterized in that output data are read out of the control device, via the operating device, for monitoring the processing position or group of processing positions.
3. Method according to claim 1 or 2, characterized in that input data are input to the control device via the operating device for controlling the processing position or group of processing positions.
4. Method according to any one of claims 1 to 3, characterized in that a data exchange is effected between the operating device and the central machine control unit.
5. Method according to any one of claims 1 to 4, characterized in that a data exchange is respectively effected between the control devices and the central machine control unit.
6. Method according to any one of claims 1 to 5, characterized in that an access authorization is assigned to the operating device for monitoring and/or controlling the processing position or the group of processing positions.
7. Method according to any one of claims 1 to 6, characterized in that in the processing positions or groups of processing positions, per processing position a thread is at least conveyed, textured, drawn and wound up, in several process steps, and the process steps are influenced via the control device by means of the operating device coupled to the control device.
8. Texturing machine for the false-twist texturing of a multiplicity of synthetic threads, with a corresponding multiplicity of processing positions (25), the threads being at least conveyed, textured, drawn and wound up in the processing positions (25) by several process sets, and comprising a central machine control unit (34) for controlling the process sets (5) of the processing positions (25), wherein one of several control devices (27) is assigned to the process sets (5) of one of the processing positions(25) or to the processing sets (5) of a group (28) of processing positions, which control devices (27) are connected to the central machine control unit (34), and a mobile operating device (23) is provided, which operating device (23) can be alternately coupled to the control devices (27).
9. Texturing machine according to claim 8, characterized in that the operating device (23), for displaying, inputting and/or altering data, is comprised of a microprocessor (36), an output unit (37) and an input unit (38).
10. Texturing machine according to claim 9, characterized in that the operating device (23) is connected to the central machine control unit (34) via a radio connection (33).
11. Texturing machine according to any one of claims 8 to 10, characterized in that the control devices (27) are connected, independently of one another via a bus system (29) to several controllers (6) assigned to the process sets (5).
12. Texturing machine according to any one of claims 8 to 13, characterized in that the process sets (5) of the processing positions (25) of a group (28) are partly assigned individually to one of the process controllers (6) and partly assigned in groups to one of the process controllers (6).
13. Texturing machine according to claim 8 or 12, characterized in that a sensing system (24) is provided for monitoring at least one parameter within the processing position (25), and the sensing system (24) is connected to the assigned control device (27).

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