WO2020234315A1

WO2020234315A1 - Method for producing a woven fabric on a loom in a weaving process, and loom

Info

Publication number: WO2020234315A1
Application number: PCT/EP2020/063999
Authority: WO
Inventors: Thomas Laukamp; Nicolas Mega
Original assignee: Lindauer Dornier Gesellschaft Mit Beschränkter Haftung
Priority date: 2019-05-23
Filing date: 2020-05-19
Publication date: 2020-11-26
Also published as: DE102019207590A1

Abstract

The invention relates to a method for producing a woven fabric (2) on a loom (1) in a weaving process, in which, in repeating weaving cycles, an open shed (4) is formed, and a reed (12) beats up a woven fabric edge (14) of the already completed woven fabric (2). At least one sensor (17) is used to sense the force and/or the vibration behaviour of the reed (12) and/or the torque of the reed shaft (13) as measured values or measured value curves at least during some weaving cycles. At least some of the measured values or measured value curves sensed by the at least one sensor (17) are stored in a data memory (16) assigned to the loom (1). A log file (22) is created from the stored measured values (21) or measured value curves (20) and stored in the data memory (16) and/or output. A corresponding loom (1) is assigned a data memory (16) and/or a control unit (15) for carrying out the method.

Description

Method for producing a fabric on a loom in one

Weaving process and loom

The present invention relates to a method for producing a fabric on a loom in a weaving process in which in itself

repeating weaving cycles an open shed is formed and a reed is struck to a fabric edge of the already finished fabric. In this case, by means of at least one sensor, a force, in particular a stop force, and / or an oscillation behavior of the reed and / or a torque of the reed shaft is recorded as a measured value or measured value curve at least during a few weaving cycles.

The measurement of the impact force of the reed or the torque of the reed shaft is basically known in the prior art. For example, EP 0 594 250 B1 describes the measurement of the impact force of the reed by means of a sensor, with the deformation of a solid

Umlenkbaumes is measured. The recorded measured values are compared with previously stored values of the impact force during normal operation. Control signals for controlling the warp beam and the fabric take-off are then generated from the deviation of the recorded measured values from the stored values. The position of the tie point in relation to the

As a result, the goods take-off device can be varied and the sheet impact forces can thus be made more uniform. This way, tarnishing marks in the tissue can be avoided.

From CN 102409476 B it is also known to measure the impact force of the reed by means of four strain gauge strips arranged in the form of a measuring bridge. The measurement of the impact force can indicate errors in the

Weaving process will be closed. The weaving process can thus be monitored and errors can be reacted to quickly. Scripture doesn't do any further information on whether and in what way the measured values are used to control the loom.

The object of the present invention is therefore to provide a method for producing a fabric on a loom and a loom

to propose which allow an improved use of such measurements.

The object is achieved with the features of the independent claims.

In a method for producing a fabric on a loom, an open shed is formed in a weaving process in repetitive weaving cycles and a reed is attached to a fabric edge of the already finished fabric. In this case, a force and / or a vibration behavior of the reed and / or a torque of the reed shaft is recorded as a measured value or measured value profile at least during a few weaving cycles by means of at least one sensor. It is proposed that at least some of the measured values or measured value profiles recorded by the at least one sensor are stored in a data memory assigned to the weaving machine. The force in particular is that

Attack force of the reed, depending on the embodiment of the invention, however, other forces can also be detected in the course of the weaving cycle.

From the stored measured values or measured value progressions, a

Log file created and stored in the loom's data store

saved. This means that the log file can still be retrieved from the data memory even after the web process has ended. Additionally or alternatively, the log file is output. The output of the

Log file can be created immediately at the end of the weaving process or during the weaving process e.g. B. be done on request. If the log file is stored in the data memory of the weaving machine, the log file can of course also be saved at a later point in time are issued. The log file can be output in the form of a printout or on a data carrier, or it can also be sent via a network to which the loom is connected.

A weaving cycle is understood to mean, in a manner known per se, a rotation of the main shaft of the weaving machine through 360 °, with a reed stop as a rule at 360 °. The blade stop can after

Entry of a shot material or after a blank shot.

Likewise, a weaving machine is used to produce a fabric

suggested. The weaving machine has shedding means for repeatedly opening and closing a shed, weft insertion means for inserting a weft material into the shed and a reed for attaching the inserted weft material to a fabric edge of the already

finished fabric. Furthermore, the weaving machine has at least one sensor for detecting a force and / or a vibration behavior of the reed and / or a torque of the reed shaft. The weaving machine is also assigned a data memory and / or a control unit for carrying out the method.

Because now at least some of the recorded measured values or

If measured value curves are saved, online monitoring of the process is not only possible, but it is also possible to identify and track errors in the weaving process at a later point in time and even after the weaving process has ended. In this way, it is also advantageously possible to assess the quality of the fabric produced subsequently. By analyzing the recorded measured values or measured value progressions, quality guarantees for certain

Properties of the fabric are given. In the event of a defect in the tissue, the cause of the defect can also be determined at a later point in time. For example, especially in the case of technical fabrics, damage that occurs later in the use of the fabric occur, yet to be traced, what in particular for

safety-relevant applications is advantageous.

The force of the reed can be measured both by direct force measurement on the reed itself or a part connected to the reed and indirectly by measuring a drive torque of the reed shaft or a part of the drive train connected to the reed shaft

Loom are recorded. The tissue formation can thereby

are recorded and mapped using measurement technology. A measurement of the vibration behavior of the reed or of a part connected to it is also possible in order to obtain conclusions about the tissue formation process.

In the case of simple applications, it is conceivable to only record and store the blade impact force or the torque as a single measured value at the time of the blade strike. Of course, several individual measured values can also be recorded and saved at several interesting times during a weaving cycle.

In other applications, on the other hand, it can be advantageous not only to measure the force or the torque as individual measured values at a specific point in time of the weaving cycle, but to record them as a measured value curve over at least one complete weaving cycle. It is thus the course of the force or the course of the torque over the

Loom angle (angle of the main shaft) recorded. In this way, errors can be recognized very quickly, especially during online monitoring of the weaving process. As an alternative to measuring the force of the reed, it is also possible to measure the vibration behavior of the reed. In this case, vibrations of the reed over the

Loom angle measured and recorded if necessary.

According to a preferred embodiment of the method, the fabric to be produced is produced in several weaving cycles to be produced one after the other Subdivided fabric sections and the force and / or the vibration behavior of the reed and / or the torque of the reed shaft is recorded and stored during the production of each fabric section in at least one weaving cycle. For example, especially in the case of fabrics for non-technical applications, the strength and / or the

Vibration behavior of the reed and / or the torque of the

To measure reed shaft not constantly, but only from time to time and in particular to save only from time to time. The amount of data generated can be kept small as a result and a sufficient statement about the quality of the tissue is still possible. The fabric section can be formed, for example, by a pattern repeat of the fabric, with a measurement and storage of the force or the torque or of the force or the torque or the only in certain weaving cycles essential for the weaving pattern

Vibration behavior takes place. It is of course also possible to measure the force or the torque more frequently or even with each weaving cycle, but only certain measured values or measured value curves of the force or the torque or the that are important for the weaving pattern

To store vibration behavior. Individual measured values can also be saved for the force and torque. However, measured value profiles are preferably recorded in order to obtain the complete

Map tissue formation process. The vibration behavior of the reed is also recorded in the form of a measured value curve.

According to another embodiment of the method, the force and / or the torque and / or the vibration behavior is recorded after a predeterminable number of weaving cycles. So it can to the

To be able to assess and check the evenness of the fabric is sufficient, for example to measure it only in every fifth weaving cycle. In this case, the fabric section is formed by the predetermined number of weaving cycles. It is again possible to display each measured value or

To store measured value progression, for example to generate and store a measured value or measured value progression in every fifth weaving cycle. It is but also possible, for example only every second or third

To save the measured value or the measured value history.

According to an alternative version, which is particularly useful for technical

Weaving or special weaving patterns is advantageous, however, the force and / or the torque and / or the vibration behavior is recorded in each weaving cycle and preferably also stored in each weaving cycle. As a result, the entire fabric formation can also be traced back later and, in particular, a quality assessment of the fabric can also be carried out by comparing the measured values or measured value courses of different weaving cycles. Likewise, individual, faulty weaving cycles can also be identified particularly well, in particular through the comparison with the measured values or measured value courses of other weaving cycles.

It is also advantageous if the force and / or the torque and / or the vibration behavior or also their measured value curve is stored after a predeterminable or predetermined number of weaving cycles. As already described above, it is not necessary to carry out the method, every measured value or measured value curve of the force or the

Also to store the torque or the vibration behavior. So it is possible, for example, to monitor the weaving process to measure with each weaving cycle, for a later quality assessment of the

Tissue, for example, only to store every third, fifth or tenth measured value or measured value curve. Of course, every measured value or measured value history could also be saved.

In the simplest case, the log file only contains the recorded measured values or measured value progressions in the order in which they were recorded. Since the sequence of the measured values or the course of the measured values as well as the number of weaving cycles after which a measured value / course was saved is known, the continuous recording of the measured values or Measured value curves can nevertheless be identified in the weaving cycle assigned to them.

However, it is also advantageous if the log file contains one or more additional pieces of information. This information can be the

The time of the start of the weaving process, the time of the end of the weaving process, the installation location of the weaving machine or data of the weaving mill. The information can also include machine data and operating data of the weaving machine, the type of warp material, the type of

Shot material or environmental conditions such as temperature and humidity. Further information can be operator data, data on the client or data on the structure of the tissue.

In the context of the present application, machine data of the weaving machine are understood to mean data that relate to the configuration of the weaving machine, that is to say the technical structure and the type of mechanical, electrical and electronic components used, which also includes the software used. The machine data also include mechanical and electronic settings such as B. the backrest height or the setting of parameters.

On the other hand, under the operating data of the loom

Machine-related and article-related process data that arise during operation of the weaving machine. These can include, for example, the running time of the machine, temperatures, speeds, blade impact forces, weft stops, warp stops and the like.

Operator data is also understood to mean data that relate to the person of the operator, for example names, identification numbers, personnel numbers and the like. It is also advantageous if the log file setpoint values of the force and / or the vibration behavior of the reed and / or the torque of the

Includes reed shaft. These can, for example, from previous

Weaving processes are determined and in a sample cartridge for the

fabric to be produced are deposited. A target value is assigned to individual weaving cycles, if necessary also to each weaving cycle. But it is also conceivable that the setpoint values of the force or the torque or the

Vibration behavior can be derived from the fabric structure, in particular from the weft density, of the fabric to be produced. This is also possible in an advantageous manner directly during the weaving process. By comparing the measured values or measured value progressions with the target values, conclusions can also be drawn about the quality of the tissue.

According to a particularly advantageous embodiment of the method, the

Log file linked to the fabric produced in such a way that the

Measured values or measured value progressions and, if applicable, the others

Information is still available after delivery of the fabric. This can be done, for example, by providing the log file and the fabric produced with the same identification. The identification can also be part of the log file or the file name. On the fabric, the marking can be done, for example, by weaving in, markings on the side edges of the goods or the

Fabric edging, sign pinning, electronic markings, and the like are done.

In particular, for linking the log file with the fabric produced, it is also advantageous if the log file with the fabric produced

Tissue is shipped. This also enables the processor to trace any damage that may have occurred.

For the detection of the force and / or the vibration behavior and / or the torque, it is advantageous if an elastic deformation path is a the element contacting the fabric and / or a component of the drive train of the weaving machine that drives this element is measured.

The deformation path is preferably measured by means of

Strain gauges over a full strain gauge bridge. Of course, other types of force measurement are also conceivable, for example by means of thin film sensors (DFS), force sensing resistors (FSR), capacitive, piezoelectric, electrodynamic or optical measuring sensors. Furthermore, it is also possible to derive the force or the vibration behavior or the torque of the reed shaft by means of acceleration sensors.

The detection of the force and / or the vibration behavior and / or the torque is advantageously carried out on the reed and / or on the

Reed shaft and / or on a connecting element between the

Reed shaft and a main gear. However, it is also conceivable to measure the force directly on the reed, for example on a lower reed collar, on the reed bar or on the reed support. Even the measurement directly on individual

Reed teeth is possible. It is also conceivable to measure the torque on the main gear of the weaving machine.

The detection of the force and / or the torque can not only take place by means of a single sensor, but several sensors can also be arranged distributed over the width of the tissue.

According to a further development of the method, it is advantageous if the recorded measured values or measured value profiles are compared in a control unit assigned to the weaving machine with previously stored setpoint values for the force and / or the torque and / or the vibration behavior.

As already described, the setpoint values can be stored in a sample cartridge of the fabric or they can only be determined from the fabric structure during the weaving process. As a result, references to errors in the weaving process can already be obtained during the weaving process. It is also possible, by comparing the recorded measured values or Measured value curves with the nominal values the force of the reed or the

To regulate the torque of the reed shaft. Likewise, if there are deviations in the recorded measured values or measured value profiles from the setpoint values, certain measures can be taken, as will be described in more detail below. Analogous to the measured values, the setpoint values can be used as individual setpoint values for specific times of a weaving cycle such as the

Blade stop can be specified or preferably as setpoint curves over the machine angle.

It is advantageous if a signal is output when the recorded measured values or measured value profiles deviate from the setpoint values by a predetermined amount, in particular when the measured values are exceeded or not reached by a predetermined amount. For example, such a deviation can be an indication of a slipping product take-off, which can be indicated to the operator by a signal.

It is also advantageous if, in the event of a discrepancy between the recorded measured values or measured value profiles, in particular in the case of a

Exceeding or falling below the target values by a specified amount, weaving parameters can be changed. Such weaving parameters can

be for example a warp tension or a weft density. It is also possible for a tissue area or tissue section assigned to the recorded measured values or measured value profiles to be marked. This can be done, for example, by entering marker shots.

It is also advantageous if a correction factor for a drive of a goods take-off device is determined from the deviation of the recorded measured values or measured value profiles from the setpoint values. This makes it possible to regulate the weft density of the fabric.

Likewise, if there is a discrepancy between the recorded measured values or

Measured value curves from the setpoints or setpoint curves, in particular for If the setpoints are exceeded, the loom will be stopped.

This enables overload protection for the loom to be implemented.

It is advantageous if the nominal values or nominal value curves are specified separately at least for each individual fabric section, but preferably also for each individual weaving cycle. In this way, tissues of particularly high quality can be produced, since measures can be taken immediately by comparing the recorded measured values or measured value profiles with the setpoint values.

Further advantages of the invention are described on the basis of the exemplary embodiments shown below. Show it:

Figure 1 is a schematic side view of a loom in a

Overview display,

Figure 2 is a schematic representation of a fabric with several

Tissue sections,

FIG. 3 shows a representation of a measured value curve for the force over the

Machine angle,

FIG. 4 shows a schematic representation of a log file according to a first embodiment,

Figure 5 is a schematic representation of a log file according to a second embodiment,

FIG. 6 shows a schematic representation of a log file according to a third embodiment, FIG. 7 shows a schematic detailed representation of a weaving machine with sensors on a blade support, as well as

Figure 8 is a schematic detailed representation of a loom with

Sensors in the area of the clutches of the drive train.

In the following description of the exemplary embodiments, features that are identical or at least comparable in terms of their design and / or mode of operation are provided with the same reference symbols. Furthermore, these are only explained in detail when they are mentioned for the first time, while in the following exemplary embodiments only the differences from the exemplary embodiments already described are discussed. Furthermore, for reasons of clarity, several identical components or

Features often only one or only a few labeled.

FIG. 1 shows a schematic side view of a weaving machine 1. In the weaving machine 1, warp materials 6, in particular warp threads, are unwound in the usual way from a feed device, here a warp beam 5, and in the warp direction or withdrawal direction AR (see arrow) of the fabric 2

Shedding means 3 supplied. The shedding means 3 can be moved in the usual way in order to open and close a shed 4 alternately. The loom 1 also has weft insertion means 7, which can be designed in various ways and by means of which a

Weft material 8, in particular a weft thread, can be entered. Furthermore, the loom 1 has a reed 12, by means of which an inserted weft material 8 can be attached to a fabric edge 14 of the fabric 2 that has already been finished. The reed 12 is connected to produce an oscillating movement with a reed shaft 13, which in turn is connected to the main shaft (not shown) of the

Loom 1 is connected. The finished fabric 2 is drawn off at the warp beam 5 or the end of the loom 1 opposite the feed device by means of a fabric take-off device 9 and onto a fabric beam 11 wound up. The goods pull-off device 9 can be driven by means of a drive 10 to pull off the finished fabric 2. To control the

Loom 1 is provided with a control unit 15 which is connected to the individual, aforementioned components of the loom 1 by means of signal-transmitting lines (dotted lines). To carry out the method according to the invention for producing a fabric 2, the weaving machine 1 is also equipped with a data memory 16. The data memory 16 can also be integrated into the control unit 15 of the weaving machine 1.

The loom 1 shown here is of course only to be understood as an example. In particular in the production of technical fabrics 2, in which the present method can advantageously be used, other versions of looms 1 or their

Components advantageous. Thus, the goods take-off device 9 can not only be designed as a take-off roller, as shown here, but also as a

Be executed horizontal trigger. For this purpose, the fabric 2 produced can be pulled off directly in the warp direction, for example by means of movable clamps, held taut and cut after a certain fabric length has been reached. It is also conceivable that the

Goods take-off device 9 through one of the loom 1 directly

downstream machine is formed in which the fabric 2 is further treated. Other designs are also possible with regard to the feed device for the warp materials 6. For example, it is also possible to supply them from a gate (not shown).

The loom 1 also has at least one sensor 17 in order to measure a force F (see FIGS. 4-6) and / or an oscillation behavior of the reed 12 and / or a torque of the reed shaft 13. In the present case, the sensor 17 is arranged on a reed support 24 of the reed 12. Of course, other positions for the arrangement of the sensor 17 are also possible. By means of the sensor 17 is at least during some weaving cycles, ie during a few revolutions of the main shaft of the loom 1, a measured value of the force F and / or the vibration behavior and / or the torque is recorded. At least some of the recorded measured values 21 (see FIGS. 4-6) or measured value profiles 20 (see FIG. 3) are then used in the previously described

Data memory 16 of the loom 1 is stored.

Both for the measurement and for the storage of the measured values 21 or measured value profiles 20, it can be advantageous if the tissue 2 to be produced is divided into tissue sections 18 to be produced one after the other, as shown in FIG. In this illustration, the warp materials 6 run in the vertical direction, while the weft materials 8 are shown in the horizontal direction. The force F and / or the vibration behavior and / or the torque is during the manufacture of each

Tissue section 18 detected and stored at least once. The number of measurements can, but does not necessarily have to be, identical to the number of measured values or measured value profiles stored after the measurement. In the present example, each fabric section 18 comprises seven weft materials 8 or weaving cycles, with every seventh

Weaving cycle the force F and / or the vibration behavior and / or the torque is measured and stored. In the present case, this is symbolized by the weft materials 8 shown in solid lines. The present presentation is of course only to be understood as an example. The individual fabric sections 18 can thus also comprise a different number of weaving cycles. Furthermore, several measured values 21 or measured value profiles 20 can of course also be recorded in each tissue section 18. The number of measurements and the number of stored measured values 21 or measured value profiles 20 essentially depend on the subsequent application of the fabric 2 and on the weave pattern.

As already indicated, both a plurality of individual measured values 21 can be recorded at regular or irregular intervals or, as shown in FIG. 3, a measured value curve 20 over the machine angle MW are recorded over at least one weaving cycle 19. The weaving cycle 19 comprises one revolution of the main shaft of the weaving machine 1 by 360 °, with a reed stop taking place at 0 ° or 360 °. In the present case, the measured value curve 20 of the force F of the reed 12 over a weaving cycle 19 is shown. This measured value profile 20 can of course also be recorded and stored over several weaving cycles 19 in succession, so that a

Measurement value curve 20 is produced over a length of the tissue. But it is also conceivable, only in certain weaving cycles 19, for example in every fifth or every tenth weaving cycle 19, the course of the force F and / or the

To detect vibration behavior and / or the torque and

to record. Of course, it is again possible here to record the force F and / or the vibration behavior and / or the torque continuously, but only the measured value profiles 20 in a more specific manner

Save weaving cycles 19.

The recorded measured values 21 or measured value profiles 20 can be used in a manner known per se during the weaving process for process monitoring or also for controlling the weaving machine 1. According to the invention, however, it is provided that the measured values 21 or measured value profiles 20 are additionally stored so that statements about errors in the weaving process and the fabric quality can still be made after the weaving process has ended. This means that even after the weaving process has ended and, if necessary, even after the finished product has been delivered

Tissue 2, the measured values 21 or measured value profiles 20 can be assigned to specific tissue sections 18 or even to individual weft materials 8, a log file 22 (see FIGS. 4-6) is advantageously created from the measured values 21 or the measured value profiles 20.

FIG. 4 shows a first embodiment of a log file 22. In addition to the individual, successive measured values 21 of the force F, it contains the shot sequence number 23 assigned to these measured values 21. The individual measured values 21 can thus produce the individual shot materials 8 Tissue 2 can be clearly assigned. The additional storage of the shot sequence number 23 assigned to the individual measured values 21 is particularly advantageous if, as shown here, a measured value 21 is not created and stored for each blade strike. In particular, the additional storage of the weft sequence number 23 is advantageous if the acquisition and storage of the measured values 21 takes place at irregular intervals or after each different number of weaving cycles 19.

Figure 5 shows another implementation of a log file 22 which

contains only the recorded measured values 21 of the force F in the present case. The assignment of the measured values 21 to the individual blade impacts or to the individual weft materials 8 of the finished fabric 2 results solely from the sequence of the measured values 21. In the present example, a measured value 21 of the force F was recorded and stored for each weft impact. Of course, it is also possible to define only the measured values 21

To store sheet attacks, for example after a certain number of weaving cycles 19, in the log file 22. Here, too, the assignment of the measured values 21 to the individual weft materials 8 of the fabric 2 results only from the sequence of the measured values 21, provided that the number of weaving cycles 19 after each of which a measured value 21 was stored is known. The

Information about the number of weaving cycles 19 can be found both in the

Log file 22 itself can be contained or in a tissue marking which assigns the finished fabric 2 to the relevant log file 22.

Depending on the type of tissue 2 and the subsequent application of the tissue 2, it can of course also be advantageous to store further information in the log file 22.

FIG. 6 shows a further embodiment of a log file 22. In this case

In addition to the firing sequence number 23 and the associated force F, a nominal value FS of the force F is also included in each embodiment. The comparison of the actual force F with the desired value FS is thus still possible after the fabric 2 has been completed, which is a particularly good and precise one

Fabric quality control 2 allowed.

It goes without saying that in FIGS. 4-6, of course, measured value profiles 20 of the force F or also measured values 21 or measured value profiles 20 of the

Vibration behavior and / or the torque can be stored.

Finally, FIGS. 7 and 8 show, by way of example, the arrangement of sensors 17 for measuring the force F and / or the vibration behavior of the reed 12 and / or the torque of the reed shaft 13.

In the figure 7 a loom 1 is shown, in which several sensors 17 for measuring the force F and / or the vibration behavior of the reed 12 distributed over the width of the fabric on the blade supports 24 of the

Reeds 12 are arranged. This also makes it possible, for example, to detect fluctuations in the force F and / or in the vibration behavior across the width of the tissue, so that in turn an even better one

Quality control of the fabric 2 is possible. Of course, however, it would be possible to arrange only a single sensor 17, preferably on one of the central blade supports 24.

In Figure 8, however, a loom 1 is shown, in which sensors 17 in connecting elements between the reed shaft 13 and a

Main gear (not shown) of the loom (1) are arranged. In the present example, a sensor 17 is arranged on the couplings 25 of the reed shaft 13 for measuring the torque of the reed shaft 13 and / or a vibration behavior of the reed shaft 13 and thus also of the reed 12. Here, too, it would of course be possible, deviating from the representation shown, the vibration behavior and / or the To detect torque only at one measuring point by means of a single sensor 17.

Of course, the arrangement of the sensors 17 in FIGS. 7 and 8 is only to be understood as an example.

The invention is not restricted to the exemplary embodiments shown. Modifications within the scope of the patent claims and combinations of features, even if these are shown and described in different exemplary embodiments, are also possible.

Reference list

1 loom

2 fabrics

3 technical means

4 shed

5 warp beam

6 warp material

7 weft insertion means

8 weft material

9 Goods take-off device

10 Drive of the goods take-off device

11 Goods tree

12 reed

13 reed shaft

14 fabric edge

15 control unit

16 data memory

17 sensor

18 fabric section

19 weaving cycle

20 Measurement curve

21 measured value

22 log file

23 Shot sequence number

24 leaf support

25 clutch

AR direction of withdrawal

MW machine angle

F force

FS setpoint of the force

Claims

Patent claims

1. A method for producing a fabric (2) on a loom (1) in a weaving process in which an open shed (4) is formed in repeating weaving cycles (19) and a reed (12) is attached to a fabric edge (14) of the already finished fabric (2) is struck, using at least one sensor (17) a force (F) and / or a vibration behavior of the reed (12) and / or a torque of the reed shaft (13) at least during some weaving cycles (19) as The measured value (21) or measured value curve (20) is recorded, characterized in that at least some of the measured values (21) or measured value curves (20) recorded by the at least one sensor (17) are stored in a data memory (16) assigned to the weaving machine (1). is stored and that a log file (22) is created from the stored measured values (21) or measured value progressions (20) and stored and / or output in the data memory (16).

2. The method according to the preceding claim, characterized

characterized in that the force (F) and / or the vibration behavior and / or the torque is recorded as a measured value curve (20) over at least one weaving cycle (19).

3. The method according to any one of the preceding claims, characterized

characterized in that the fabric (2) to be produced is subdivided into several weaving cycles (19) comprising fabric sections (18) to be produced one after the other and the force (F) and / or the vibration behavior and / or the torque during production of each

Fabric section (18) is detected and stored in at least one weaving cycle (19).

4. The method according to any one of the preceding claims, characterized in that the force (F) and / or the vibration behavior and / or the torque is detected after a predeterminable number of weaving cycles (19).

5. The method according to any one of the preceding claims, characterized

characterized in that the force (F) and / or the vibration behavior and / or the torque is recorded in each weaving cycle (19).

6. The method according to any one of the preceding claims, characterized

characterized in that the force (F) and / or the vibration behavior and / or the torque is stored after a predeterminable number of weaving cycles (19).

7. The method according to any one of the preceding claims, characterized

characterized in that the log file (22) contains one or more of the following additional information: time of the start of the weaving process, time of termination of the weaving process, location of the weaving machine (1), machine data of the weaving machine (1),

Operating data of the weaving machine (1), type of warp material (6), type of weft material (8), environmental conditions, operator data,

Client, fabric structure, target values (FS) of the force (F) and / or the vibration behavior of the reed (12) and / or the

Torque of the reed shaft (13).

8. The method according to any one of the preceding claims, characterized

characterized in that the log file (22) is linked to the fabric (2) produced in such a way that the measured values (21) or the measured value progressions (20) and, if necessary, the further information can still be called up after the fabric (2) has been delivered.

9. The method according to any one of the preceding claims, characterized in that the log file (22) is delivered with the fabric (2) produced.

10. The method according to any one of the preceding claims, characterized

characterized that the detection of the force (F) and / or des

Vibration behavior and / or the torque by measuring an elastic deformation path of the tissue (2)

contacting element and / or a component of the drive train of the weaving machine (1) that drives this element.

11. The method according to any one of the preceding claims, characterized

characterized that the detection of the force (F) and / or des

Vibration behavior and / or the torque on the reed (12) and / or on the reed shaft (13) and / or on one

Connecting element between the reed shaft (13) and a main gear of the loom (1) takes place.

12. The method according to any one of the preceding claims, characterized

characterized in that the recorded measured values (21) or

Measured value curves (20) are compared in a control unit (15) assigned to the weaving machine (1) with previously stored setpoint values.

13. The method according to any one of the preceding claims, characterized

characterized in that if there is a discrepancy between the recorded measured values (21) or measured value profiles (20) from the setpoint values by one

predetermined amount, in particular when exceeding or falling below a predetermined amount, a signal is output.

14. The method according to any one of the preceding claims, characterized

marked that if there is a discrepancy between the recorded measured values (21) or measured value curves (20) from the setpoint values by a predetermined amount, in particular when they are exceeded or

Undershooting a specified amount, weaving parameters,

in particular a warp tension or a weft density, can be changed and / or the recorded measured values (21) or

The tissue section (18) assigned to measured value curves (20) is marked and / or the weaving machine (1) is stopped.

15. The method according to any one of the preceding claims, characterized

characterized in that a correction factor for a drive (10) of a goods take-off device (9) is determined from the deviation of the recorded measured values (21) or measured value profiles (20) from the setpoint values.

16. The method according to any one of the preceding claims, characterized

characterized in that the setpoint values are specified separately as individual setpoint values or setpoint curves at least for each individual fabric section (18), preferably for each individual weaving cycle.

17. The method according to any one of the preceding claims, characterized

marked that the setpoints are stored in a sample cartridge.

18. weaving machine (1) for producing a fabric (2) with

Shedding means (3) for repeatedly opening and closing a shed (4), with weft insertion means (7) for inserting a shed

Weft material (8) in the shed (4), with a reed (12) for striking the inserted weft material (8) against one

Fabric edge (14) of the already finished fabric (2), with at least one sensor (17) for detecting a force (F) and / or a vibration behavior of the reed (12) and / or a torque of the reed shaft (13), characterized by one of the Data memory (16) assigned to the weaving machine and / or a control unit (15) for carrying out the method according to one of the preceding claims.