JP2023084690A - Device and method for winding melt-spinning yarn - Google Patents

Abstract

To provide a device for winding a melt-spinning yarn that ensures winding of the melt-spinning yarn to form a package or a wound package of improved quality, and a method for winding the melt-spinning yarn that has improved reliability in terms of quality.SOLUTION: A device for winding a melt-spinning yarn consisting of a plurality of filaments has: a winding spindle capable of winding at least one spinning yarn to form a package; at least one measurement device for measuring temperature of an outer circumference of the package placed on the winding spindle; and an evaluation device for evaluating a temperature measurement value made by a measurement device. The evaluation device is specified to detect non-uniform mass distribution of a yarn part wound in the package based on at least one evaluated temperature measurement value.SELECTED DRAWING: Figure 1

Description

The present invention relates to an apparatus for winding a melt-spun yarn consisting of multiple filaments. The present invention also relates to a method for winding melt-spun yarn.

In the production of synthetic yarns, molten polymer is supplied by a spin pump under high pressure to a spinneret and extruded to form fine filament strands. After being extruded and cooled, the filament strands are grouped together to form yarns. A plurality of yarns thus produced are wound up in parallel on a so-called take-up winder to form a package.

Such a take-up winder for winding comprises a so-called winding spindle with a chuck and a clamp with a clamping device for receiving and fixing the winding tube arranged around the winding spindle. have a jacket. One winding tube can be arranged on the winding spindle for each yarn to be wound. The winding spindle can be arranged on the spindle support with one side mounted in a protruding manner, so that the package wound on the circumference of the winding spindle will, on completion, be at the free end of the winding spindle. can be removed from the Package removal is also called doffing.

When winding the package, each yarn is deposited, usually by a contact pressure roller, respectively on the circumference of the winding tube or on the circumference of an already partially wound package. Due to the uniform mass distribution of the yarn in the package, there is uniformity in the bearing action of the contact pressure roller. However, since the yarn is reversed at the end portion of the package, yarn pooling may occur at the end portion of the package. In addition, the sliding of the yarn layers can cause uneven mass distribution within the wound package. As a result, downstream processing of each wound package can be compromised.

SUMMARY OF THE INVENTION Against the above background, an object of the present invention is to define an apparatus for winding melt-spun yarns, which ensures the winding of the melt-spun yarns to form packages or wound packages of improved quality, respectively. was to do The aim was also to define a method for winding melt-spun yarns with improved reliability in terms of quality.

In terms of the device, this object is achieved by the subject matter of claim 1 . The method according to the invention is defined in claim 12 . Advantageous design embodiments are the subject matter of the dependent claims and are described below.

A device according to the invention for winding a melt-spun yarn consisting of a plurality of filaments comprises a winding spindle on which at least one yarn can be wound to form a package, and a package arranged on the winding spindle. It has at least one measuring device for measuring the temperature of the outer circumference of the housing and an evaluation device for evaluating the temperature measurements made by the measuring device. According to the invention it is provided that the evaluation device is specified to detect a non-uniform mass distribution of the yarn portion wound in the package on the basis of the at least one evaluated temperature measurement. be.

The device according to the invention for winding melt-spun yarns advantageously makes it possible to improve the winding accuracy and thus the overall quality of the wound package. If the yarn mass distribution is uniform within each package, a uniform temperature distribution or nominal temperature is also established on the circumference of the package. The reason for this is that, in particular, a uniform mass distribution also establishes a uniform bearing action of the contact pressure rollers used during winding.

A well-wound package will have temperature peaks and temperature troughs of approximately the same size at the winding reversal points along the circumference of the wound package and the width of the package. In the graph in which the temperature axis is displayed in , the temperature peaks and temperature troughs are symmetrical to each other.

However, when the yarn is wound, a so-called yarn pool occurs, and thus an uneven mass distribution, which leads to a non-uniform temperature distribution on the circumference of the package or a temperature difference from the nominal temperature on the circumference of the package. It can fluctuate, or be dispersed. Thus, areas of the package with piled yarn may be heated more than adjacent areas due to the higher contact pressure of the contact pressure roller. As a result, a pile of yarn can be detected in a favorable manner by measuring the temperature of the outer circumference of the package arranged on the winding spindle and evaluating the respective measured value. In the temperature distribution, this can be confirmed by different size temperature peaks and temperature troughs in the graph.

Based on such detection, appropriate measures are respectively initiated, e.g. classifying each package in terms of quality differences, adapting each ongoing winding process and adapting subsequent winding processes. can do.

According to an advantageous design embodiment, the measuring device can be provided to measure the temperature of the rotating package and/or the circumference of the package while the yarn is being wound. The measurement of the temperature during winding ensures a higher accuracy in the detection of a pile of yarn and thus in the unevenness of the mass distribution. In this way, in particular, it can be avoided or completely avoided that uneven layers of the wound package are obscured by the uniform layer of the package and thus hinder the detection of the uneven layer of the package. be able to.

Further preferably, the at least one measuring device can be configured to measure the temperature contactlessly and/or as an infrared camera and/or as a pyrometer. As a result, disruption of the winding process can be completely avoided or limited to a minor extent. A non-contact temperature measurement can be carried out, in particular, without the danger that the yarn to be wound will get caught in the measuring device.

According to an advantageous design embodiment, the at least one measuring device is arranged in particular along the longitudinal direction of the winding spindle and/or along a plurality of packages arranged on the winding spindle and/or on the winding. It can be arranged movably and/or displaceably along the width of at least one package arranged on the pick-up spindle. As a result of the measuring device being so arranged, temperature measurements may be performed by said measuring device at a plurality of measuring points, so that a higher information density relating to potential unevenness in the mass distribution can be obtained from 1 It may be generated for one package or for multiple packages. At the same time, the movable or displaceable measuring devices allow the number of measuring devices to be kept low, which in turn reduces the manufacturing costs of the device for winding the yarn.

According to a further advantageous design embodiment, the at least one measuring device can be provided to measure the temperature of the outer circumference of the package arranged on the winding spindle by means of a reflecting device, in particular a mirror. The reflector here is preferably at least arranged in particular along the longitudinal direction of the winding spindle and/or along a plurality of packages arranged on the winding spindle and/or on the winding spindle. It can be arranged movably and/or displaceably along the width of one package. As a result of the provision of the deflection device, there is greater flexibility in terms of placement of the measuring device. In particular, the measurement device need not be directly oriented towards each measurement point, and such orientation can be achieved with a more compact and/or lighter reflective device.

Furthermore, the movable or displaceable arrangement of the reflector also ensures that temperature measurements can be performed at multiple measurement points using only one measurement device, resulting in a potential A higher information density related to mura may be generated for a single package or multiple packages. The movability or displaceability of the reflectors, in particular the mirrors, can furthermore be realized with only a small complexity in terms of construction and thus with low manufacturing costs.

According to a further advantageous design embodiment, the plurality of measuring devices are arranged in particular along the longitudinal direction of the winding spindle and/or along the plurality of packages arranged on the winding spindle and/or on the winding. It can be provided along the width of at least one package arranged on the take-up spindle. Multiple measuring devices allow simultaneous measurement of temperature at multiple measuring points. Thus, a further improved information density relating to potential unevenness in mass distribution may be generated for a package or packages.

According to a further advantageous design embodiment, at least one measuring device for detecting the temperature of the peripheral edge portion of the package arranged on the winding spindle is permanently and/or fixedly positioned. good. Due to the thread reversal, each end of the package may have a certain degree of thread pooling. Therefore, the permanent and/or fixed positioning of the at least one measuring device for measuring the temperature of the outer peripheral edge portion of the package results in an accuracy or reliability of detection of uneven mass distribution in the region of the package. Each can be improved.

Further preferably, based on the evaluated temperature measurement, the evaluation device determines the yarn stagnation of the wound yarn section, in particular as a result of yarn stagnation at the ends of the package and/or due to displaced yarn layers. It may be specified to detect uneven mass distribution as a result of pooling. As a result, the detection accuracy and thus also the quality of the wound package can be further improved.

Further preferably, the at least one measuring device and/or the plurality of measuring devices can be provided to detect the temperature distribution along the package width of the package arranged on the winding spindle. The temperature distribution within the package, in particular during winding of the yarn, can consequently be detected in a particularly advantageous manner and evaluated by means of an evaluation unit. Due to the significant temperature variances within the package, conclusions relating to thread pooling and uneven mass distribution can be obtained with only a small complexity of evaluation. In particular, such an evaluation can be performed without a nominal/actual comparison of temperature data or without recourse to empirically determined temperature data, respectively.

Furthermore, the at least one measuring device continuously and/or repeats periodically, in particular at intervals of less than 20 seconds, preferably less than 10 seconds or less than 5 seconds, to detect the temperature of the outer circumference of the package. , is specified to detect. Temperature detection can likewise be performed at time intervals of less than 100 seconds, preferably less than 50 seconds, or less than 30 seconds. Continuous detection of temperature ensures high accuracy in terms of monitoring. In contrast, the computational complexity for the evaluation of the temperature measurements can be kept low as a result of the periodically repeated temperature detection. Furthermore, cyclically repeated temperature sensing can be performed using a smaller number of measuring devices performing temperature measurements at different measuring points at different times. Here, if the interval is shortened, it is possible to reliably reduce the risk of not detecting a pile of yarn.

Further preferably, the at least one measuring device and/or the plurality of measuring devices can be provided to detect the temperature of the outer circumference of the plurality or all of the packages arranged on the winding spindle. Likewise, the at least one measuring device and/or the plurality of measuring devices can be provided to detect the temperature of the outer circumference of several packages arranged on the winding spindle. As a result, it is possible to compare temperatures between different packages. Furthermore, it is thus possible to monitor the quality of more packages that are wound simultaneously, thus achieving improved overall results in terms of quality or increased reliability in terms of quality, respectively. can be done.

According to a further preferred design embodiment, the evaluation device can be configured as part of the measurement device or can be separate from the measurement device and/or the evaluation device and the measurement device They can be part of a system or they can work together to form a detection system. Such detection systems may be intelligent sensors and/or neural sensors. Such detection systems can in particular be equipped with modules for artificial intelligence in order to allow continuous improvement in terms of detection capabilities.

According to a further preferred design embodiment, the evaluation unit can be formed by the winding spindle control unit. As a result, complexity in terms of equipment can be reduced. The winding spindle control unit may be configured to control the operation of the winding spindle, for example controlling rotation and/or acceleration of rotation and/or deceleration of rotation and/or braking of rotation of the winding spindle. can be configured to

The evaluation unit can preferably be constructed as a module of the winding spindle control unit. An evaluation unit which is provided independently of the winding spindle control unit can thus be avoided. Furthermore, this allows a particularly simple integration of the evaluation unit into the control unit of the overall installation.

According to one advantageous design embodiment, the apparatus for winding the melt-spun yarn can be configured with a traverse unit. Such a traversing unit either winds the yarn wound onto the package by a prescribed winding stroke, or deposits each yarn portion at a prescribed location on the package and preferably places the yarn portion at the end of the package. can be provided to guide For example, such a traverse unit can be configured as a birotor device.

According to a further preferred design embodiment, the evaluation unit can be formed by a traverse control unit. The traverse control unit may be the control unit for the traverse unit. As a result of the configuration of the traverse control unit as an evaluation unit, the complexity in terms of installation can likewise be reduced. The evaluation unit can in particular be constructed as a module of the traverse control unit. As a result, an evaluation unit provided independently of the traverse control unit can be avoided. An embodiment of such a design also allows easy integration of the evaluation unit into the control unit of the entire device.

The winding spindle control unit and the traverse control unit can more preferably be formed by the entire control unit, as a result of which the complexity in terms of installation can be further reduced.

According to a further preferred design embodiment, the evaluation unit can be provided to carry out a nominal/actual comparison of the temperature data. The nominal temperature data here are preferably preset and/or may be preset and/or adapted from average values of preceding winding processes. For example, the nominal temperature data is the average value of the temperature data of a predetermined number of previous winding processes, such as the temperature data of at least 5, at least 10, at least 20, or at least 30 previous winding processes. may be the average value of

The nominal temperature data may also be the mean value of the temperature data of a predetermined number of further packages placed on the winding spindle and subjected to the ongoing winding process, for example at least 3, at least 5, at least It may be the average value of temperature data for 10, or at least 15 additional packages.

A nominal/actual value comparison of this kind can be established with only low complexity and at the same time guarantees a sufficiently reliable evaluation result. Presetting the nominal temperature data can be implemented particularly simply. Any adaptation of the nominal temperature data, especially continuous arbitrary adaptation, can improve the accuracy of the evaluation on-the-fly and continuously improve the quality assurance of the wound packages.

In a further preferred design embodiment, the evaluation unit determines the quality of each wound package or each wound package on the basis of the variance of the detected nominal/actual value of the temperature values and/or the temperature distribution. may be provided to emit a warning signal to identify the quality of the package. For example, a signal corresponding to a particular quality class can be emitted as a function of the detected nominal/actual variance. Each package may then be data-based labeled and/or electronically identified and/or identified in a manner corresponding to each quality grade. The quality grade can then be considered for downstream processing of the package.

In a further preferred design embodiment, the evaluation unit is adapted for adapting at least one package parameter and/or winding parameter based on the variance of the detected nominal/actual value of the temperature values and/or the temperature distribution. may be provided to emit control and/or information signals. Here, this may be packaging and/or winding parameters for ongoing and/or future winding procedures.

For example, the evaluation unit may, on the basis of the variance of the detected nominal/actual value of the temperature value and/or the temperature distribution, determine the mechanical and/or Or it can be provided to emit control and/or information signals for adapting the technical process settings. Control and/or information signals of this kind are signals for automatically or self-adapting and/or adapting the settings for future winding processes or winding strokes of the winding spindle. It may be a signal to the operator or an automatically generated recommendation to cause the operator to proceed.

The evaluation unit can also determine the temperature value and/or the variance of the detected nominal/actual value of the temperature distribution during operation of the winding spindle, for the ongoing winding process or for the ongoing winding process. can be provided to emit control and/or information signals for adapting the mechanical and/or technical process settings of the Control and/or information signals of this kind are signals for automatically or self-activatingly adapting the settings for the ongoing winding process or the ongoing winding process during operation of the winding spindle; and/or a signal or automatically generated recommendation to the operator to adapt its settings.

The settings for the ongoing or future winding process or the ongoing or future winding process, respectively, may be, for example, birotor settings. This can be particularly advantageous when measuring a pronounced temperature distribution repeatedly or permanently.

Additionally or alternatively, the setting for an ongoing or future winding process or an ongoing or future winding process is the deposition angle for the yarn deposited and wound on each package, respectively. It can be a setting. This is particularly advantageous if the sliding yarn layer is detected repeatedly or permanently or if temperature measurements and corresponding evaluation values lead to conclusions indicative of a sliding yarn layer. obtain.

A further aspect of the present invention is a method for winding a melt-spun yarn comprising a plurality of filaments, wherein at least one yarn is wound to form a package on a winding spindle; A measurement of the temperature of the outer periphery of the package arranged on the spindle is carried out, the measured temperature of the measuring device is evaluated, and on the basis of the at least one evaluated temperature measurement, uneven mass of the wound yarn section is determined. It relates to a method, in which the distribution is detected.

Such a method can be carried out particularly advantageously using the above-described apparatus for winding melt-spun yarns. The method according to the invention for winding melt-spun yarns advantageously makes it possible to improve the winding accuracy and thus the overall quality of the wound package.

When the yarn mass distribution in each package is uniform, the temperature or nominal temperature of the peripheral surface of the package will also be uniform. This is because a uniform bearing action of the contact pressure rollers used for winding is also established. In methods for winding yarn, so-called yarn pools and thus irregularities in the mass distribution can lead to non-uniform temperature distributions or deviations from the nominal temperature on the circumference of the package. Also, due to the bearing pressure of the contact pressure rollers, areas of the package having a pile of yarn may be heated more than adjacent areas. By measuring the temperature of the outer circumference of the package arranged on the winding spindle and evaluating each measured value, it is possible advantageously to detect a pile of yarn.

The preferred design embodiments described above in connection with apparatus for winding melt-spun yarns apply in an analogous manner to methods for winding melt-spun yarns.

The invention will now be described by way of example with reference to the accompanying figures, which in each case are described schematically.

1 is a side view of an apparatus for winding melt-spun yarns according to a first exemplary embodiment of the present invention; FIG. FIG. 4 is a side view of an apparatus for winding melt-spun yarns according to a second exemplary embodiment of the present invention; FIG. 4 is a side view of an apparatus for winding melt-spun yarns according to a third exemplary embodiment of the present invention;

FIG. 1 shows a schematic side view of an apparatus 10 for winding melt-spun yarns according to a first exemplary embodiment of the present invention. Apparatus 10 is particularly configured for winding a melt-spun yarn comprising a plurality of filaments. Such melt-spun yarns may be synthetic yarns.

The device 10 according to FIG. 1 has a winding spindle 12 . By means of this winding spindle 12 at least one yarn, not shown in more detail here, can be wound up to form a package 14 . In FIG. 1, a plurality of packages 14 are arranged on the take-up spindle 12 . The device 10 furthermore has a measuring device 16 for measuring the temperature of the outer circumference 18 of the package 14 arranged on the winding spindle 12 . Measuring device 16 may advantageously be a pyrometer and/or an infrared camera.

The device 10 finally has an evaluation device 20 for evaluating the temperature measurements made by the measuring device 16 . Here, the evaluation device 20 is provided to detect uneven mass distribution of the wound yarn portion in the package 14 on the basis of at least one evaluated temperature measurement.

In the exemplary embodiment according to FIG. 1, the measuring device 16 in particular along the longitudinal direction 17 of the winding spindle 12 or along a plurality of packages 14 arranged on the winding spindle 12 and/or the winding It is arranged movably or displaceably along the width of at least one package 14 arranged on the spindle 12 .

The movability or displaceability of the measuring device 16 is realized by a support rail 22 , for example the measuring device 16 can be displaced on the support rail 22 . A linear drive may be provided for displacing the measuring device 16 on the support rail 22 . The support rail 22 may in particular extend along the longitudinal direction 17 of the winding spindle 12 .

The detection of the temperature distribution along the package width of the package 14 arranged on the winding spindle 12 can be easily performed by means of the displaceability or displaceability of the measuring device 16 . Likewise, temperature measurements can be carried out for different packages 14 arranged on the winding spindle 12 or for neighboring packages 14 , which temperature measurements are taken into account in the evaluation by the evaluation unit 20 . For example, temperature data for different packages 14 can be compared to each other.

FIG. 2 shows a side view of an apparatus 10 for winding melt-spun yarns according to a second exemplary embodiment of the present invention. The device 10 according to the exemplary embodiment of FIG. 2 differs from the exemplary embodiment according to FIG. 1 by the type of arrangement or orientation of the measuring device 16 . In the exemplary embodiment according to FIG. 2 the measuring device 16 is therefore provided to measure the temperature of the outer circumference 18 of at least one package 14 arranged on the winding spindle 12 by means of the reflecting device 24 .

As a result, the measuring device 16 according to FIG. will be This makes it possible to achieve a compact configuration as a whole. Reflecting device 24 may in particular be a mirror. The reflector device 24 is preferably arranged in particular along the longitudinal direction 17 of the winding spindle 12 and/or along the plurality of packages 14 arranged on the winding spindle 12 and/or on the winding spindle 12 . movably and/or displaceably arranged along the width of at least one package 14 .

The movability or displaceability of the reflector 24 is realized by the support rails 22 , for example the reflector 24 is displaceable on the support rails 22 . A linear drive may be provided to displace the reflector 24 on the support rails 22 . The support rail 22 may in particular extend along the longitudinal direction 17 of the winding spindle 12 .

The detection of the temperature distribution along the package width of the package 14 arranged on the winding spindle 12 can be easily performed by means of the displaceability or displaceability of the reflector device 24 . Likewise, temperature measurements can be performed for different or adjacent packages 14 arranged on the winding spindle 12 , which temperature measurements can be taken into account in the evaluation by the evaluation unit 20 . For example, temperature data for different packages 14 can be compared to each other.

FIG. 3 shows a side view of an apparatus 10 for winding melt-spun yarns according to a third exemplary embodiment of the present invention. The apparatus 10 according to the exemplary embodiment of FIG. 3 differs from the exemplary embodiment according to FIG. 1 or 2 by the number of measuring devices 16 and the arrangement or orientation of the measuring devices 16, respectively. Therefore, in the exemplary embodiment according to FIG. 3, a plurality of measuring devices 16 are provided. Here, the measuring device 16 is arranged in particular along the longitudinal direction 17 of the winding spindle 12 and/or along a plurality of packages 14 arranged on the winding spindle 12 and/or on the winding spindle 12 . along the width of at least one package 14.

According to FIG. 3, the measuring device 16 is fixedly arranged or fixed with respect to the winding spindle. The measuring device 16 may be arranged such that it cannot be moved at least along the longitudinal direction 17 of the winding spindle 12 . At least one of the plurality of measuring devices 16 may be permanently and/or fixedly positioned to detect the temperature of the outer peripheral end portion 26 of the package 14 positioned on the winding spindle 12 . Preferably, some or all of the measuring devices 16 are permanently and/or fixedly positioned to detect the temperature of the outer peripheral end portion 26 of the package 14 positioned on the winding spindle 12 . Monitoring the temperature of the outer peripheral end portion 26 is advantageous for quality assurance, as yarn puddles tend to occur at the outer peripheral end portion 26 due to yarn reversal during winding.

In the exemplary embodiments according to FIGS. 1-3, the evaluation device 20 is in each case configured to be separate from the measuring device 16 or the measuring devices 16 . The evaluation device 20 can thus form a separate component. However, it is equally possible for the evaluation device 20 to be formed as part of each measuring device 16 and/or for each measuring device 16 to have its own evaluation device 20 . Furthermore, there is the possibility that each evaluation device 20 and measurement device 16 is configured as part of a detection system or forms a detection system. Finally, the evaluation device 20 can also be formed by a package control unit and/or a traverse control unit, which are not shown in more detail.

Apparatus 10 according to the exemplary embodiment shown in FIGS. 1-3 is suitable for carrying out a method for winding a melt-spun yarn of multiple filaments. In such a method, at least one yarn is wound onto a winding spindle 12 to form a package 14 and a measurement of the temperature of the outer circumference 18 of the package 14 placed on the winding spindle is performed. , the measured temperature of the measuring device is evaluated. Finally, such a method can detect non-uniform mass distribution of the wound yarn portion based on at least one evaluated temperature measurement.

Based on the variance of the detected nominal/actual values of temperature values and/or temperature distribution, each evaluation unit 20 determines the quality of each wound package 14 or the quality of each wound package 14. warning signals for quality identification and/or control signals and/or for adapting at least one package parameter and/or winding parameter and/or traverse parameter of ongoing and/or future winding procedures Information signals can be emitted.

Thus, the quality of each package 14 in the ongoing winding operation can be favorably influenced, or packages 14 with uneven mass distribution can be identified as having a reduced level of quality. can. Based on the detection of uneven mass distribution, settings and/or specifications for future winding procedures may likewise be implemented to ensure continuous quality improvement or quality assurance, respectively. can.

Claims (12)

An apparatus (10) for winding a melt-spun yarn comprising a plurality of filaments or monofilaments, comprising:
having a winding spindle (12) capable of winding at least one yarn to form a package (14);
at least one measuring device (16) for measuring the temperature of the outer circumference (18) of the package (14) arranged on the winding spindle (12);
an evaluation device (20) for evaluating temperature measurements made by said measuring device (16);
wherein the evaluation device (20) is adapted to detect non-uniform mass distribution of the yarn portion wound in the package (14) based on the at least one evaluated temperature measurement;
A device (10). said measuring device (16) being specified to measure the temperature of the rotating package (14) and/or said circumference (18) of the package (14) while the yarn is being wound; A device (10) according to claim 1, characterized in that: 3. The method according to claim 1 or 2, characterized in that the at least one measuring device (16) is designed to measure the temperature contactlessly and/or as an infrared camera and/or as a pyrometer. A device (10). Said at least one measuring device (16) may be arranged in particular along the longitudinal direction (17) of said winding spindle (12) and/or on a plurality of packages (14) arranged on said winding spindle (12). and/or arranged movably and/or displaceably along the width of at least one package (14) arranged on the winding spindle (12). 4. Apparatus (10) according to any one of claims 1 to 3. The at least one measuring device (16) is specified to measure the temperature of the outer circumference (18) of the package (14) arranged on the winding spindle (12) by means of a reflecting device (24), in particular a mirror. and said reflector device (24) preferably comprises a plurality of packages arranged in particular along the longitudinal direction (17) of said winding spindle (12) and/or on said winding spindle (12). (14) and/or along the width of at least one package (14) arranged on said winding spindle (12). A device (10) according to any one of claims 1 to 4. A plurality of measuring devices (16), in particular along the longitudinal direction (17) of the winding spindle (12) and/or along the plurality of packages (14) arranged on the winding spindle (12). and/or along the width of at least one package (14) arranged on the winding spindle (12). Apparatus (10) as described. At least one said measuring device (16) for measuring the temperature of a peripheral edge portion (26) of a package (14) arranged on said winding spindle (12) is permanently and/or fixedly positioned. Device (10) according to any one of claims 1 to 6, characterized in that the device (10) The at least one measuring device (16) and/or the plurality of measuring devices (16) are adapted to detect a temperature distribution along the package width of a package (14) positioned on the winding spindle (12). Device (10) according to any one of claims 1 to 7, characterized in that it is specified. Said at least one measuring device (16) continuously and/or periodically repeats the temperature of said outer circumference (18) of the package (14), especially for less than 20 seconds, preferably for 10 seconds. A device (10) according to any one of the preceding claims, characterized in that it is specified to detect at a time interval of less than or less than 5 seconds. Said evaluation device (20) is specified to carry out a nominal/actual comparison of the temperature data, the nominal temperature data preferably being preset from the mean values of the preceding winding process. , and/or preset and/or adapted. Said evaluation device (20) determines the quality of each wound package (14) or each wound package (14) based on the variance of the detected nominal/actual temperature values and/or temperature distributions. A warning signal for identifying the quality of said package (14) and/or a control for adapting at least one package parameter and/or winding parameter and/or traverse parameter of current and/or future winding procedures. Device (10) according to any one of claims 1 to 10, characterized in that it is specified to emit signals and/or information signals. A method for winding a melt-spun yarn comprising a plurality of filaments comprising:
winding at least one yarn on a winding spindle (12) to form a package (14);
performing a measurement of the temperature of the outer circumference (18) of the package (14) located on the winding spindle (12);
evaluating the measured temperature of said measuring device (16);
detecting non-uniform mass distribution of the wound yarn portion based on the at least one evaluated temperature measurement;
Method.

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