EP3754064B1 - Textile machine with multiple work stations and method for monitoring a textile machine with multiple work stations - Google Patents

Textile machine with multiple work stations and method for monitoring a textile machine with multiple work stations Download PDF

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Publication number
EP3754064B1
EP3754064B1 EP20180135.4A EP20180135A EP3754064B1 EP 3754064 B1 EP3754064 B1 EP 3754064B1 EP 20180135 A EP20180135 A EP 20180135A EP 3754064 B1 EP3754064 B1 EP 3754064B1
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EP
European Patent Office
Prior art keywords
workstations
textile machine
production
check
signal units
Prior art date
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EP20180135.4A
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German (de)
French (fr)
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EP3754064A1 (en
Inventor
Bert Hurtz
Dirk Schiffers
Ralf Siewert
Tai Mac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saurer Spinning Solutions GmbH and Co KG
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Saurer Spinning Solutions GmbH and Co KG
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Publication of EP3754064A1 publication Critical patent/EP3754064A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/26—Arrangements facilitating the inspection or testing of yarns or the like in connection with spinning or twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/174—Textile; fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • Continuous monitoring and evaluation of the key production figures of the individual work stations is a prerequisite for productive operation of the textile machine.
  • the observation of the production key figures determined by suitable sensors such as piecing reliability, number of yarn breaks, number of clearer cuts, efficiency or the like over a definable period of time encompassing the current operation, enables the machine operator to identify problematic jobs at an early stage so that appropriate countermeasures can be initiated which can be carried out, for example, by so-called service units, which can be moved along the work stations on the textile machine and carry out maintenance processes at the work stations automatically.
  • the DE 199 30 714 A1 discloses a textile machine with a machine control device, a display device with lamps or diodes and a maintenance device.
  • the invention is based on the object of providing a method for monitoring a textile machine with several work stations and a textile machine with several work stations, which enable fast detection and identification of those work stations whose production parameters exceed predetermined limit values.
  • the invention solves the problem by a textile machine with the features of claim 1 and a method for monitoring a textile machine with the features of claim 5.
  • Advantageous developments of the textile machine are in the dependent claims 2 to 4, advantageous developments of the method in the dependent claims 6 indicated up to 8.
  • the display unit has several signal units arranged at the respective work stations and assigned to the individual work stations, which are designed in such a way that the result of the check of the at least one selected production key figure to be checked with regard to exceeding the assigned predetermined limit value by means of different light signals is displayed.
  • a production indicator is a value that results from a predefinable or predetermined combination of at least two or more defined values, in particular values that are different from one another.
  • a signal unit is arranged at each work station, which displays the result of the check directly at the workplace.
  • the signal unit is arranged in an area that is easily visible to the machine operator in such a way that it can also be clearly recognized from a distance, so that faulty work stations, i.e. those whose production figures exceed specified limit values, can also be identified from afar if the machine operator does not have a display of the display unit in view. Necessary maintenance work can thus be identified and initiated.
  • the textile machine according to the invention also allows the signaling of an empty can containing a sliver for a spinning machine—from which a sliver is continuously fed to a spinning machine—with a sufficient advance warning time.
  • Appropriate measures such as requesting and providing a new can, can be initiated in good time by a machine operator, either manually or automatically.
  • the change of a can is preferably to be acknowledged, in which case, for example, emptying of the can can can be monitored via the detectable production of the work station.
  • Can production key figures to be monitored can be, for example, the length of the sliver of the can in meters, the weight of the sliver or the diameter of the take-up bobbin, which particularly reliably enable timely signaling that the can needs to be replaced.
  • the signal units arranged at the work stations also make it possible to mark and identify those work stations on which matching product groups, for example the same yarns, are processed, as well as those work stations that are not assigned to any product groups.
  • the design of the signal units for signaling the results of the checking of the monitoring results can in principle be carried out by the signal units in any way.
  • the signal unit is designed to display the result of the check by means of light signals of different brightness and/or colors.
  • results are displayed by means of light signals of different brightness, it is provided, for example, that work areas working within the framework of the specified production indicators are identified by signal units that are switched off or illuminated with low intensity, whereas problematic work areas are identified by signal units illuminated with high intensity.
  • this refinement of the invention enables a machine operator to identify problem-prone jobs quickly. Necessary maintenance work can thus be initiated at short notice by the machine operator.
  • these can also be designed to display the results of the check in color.
  • This configuration enables a machine operator to immediately detect work areas requiring maintenance in a particularly advantageous manner. For example, jobs that work within the specified framework can be identified by a signal unit displaying a green light signal. Work areas that require maintenance or work incorrectly can be identified by a different color, e.g. red.
  • This contrast of the signal units makes it easier for a machine operator to detect - especially from a distance - those work stations whose production figures are outside the specified limit values.
  • a further development of the invention provides for the signal units to be designed to display the result of the check using a continuous light and a flashing light.
  • This refinement of the invention improves the ability to remotely identify work sites requiring maintenance in an additional manner.
  • the frequency of the flashing light can be adapted to the need for maintenance.
  • Work sites that require priority maintenance can be identified by a signal light that flashes at a high frequency, with work sites that require maintenance that have a lower priority being identified by a flashing light that has a low frequency. The need for maintenance of the individual work stations is thus displayed to a machine operator in a particularly advantageous manner.
  • the arrangement of the signal units at the work sites is such that they can be easily recognized by a maintenance worker from afar.
  • the signal units are arranged at the work sites and the light signals are generated at the signal units in such a way that they can be used for automatic identification and/or alignment of a service unit having an optical detection device with respect to the work sites.
  • the signal unit enables a service unit to automatically record work areas that require maintenance.
  • the signal units are designed in such a way that the service unit, which carries out maintenance work in an automated manner, is aligned with the work site via the signal units.
  • the signal unit e.g. Additional alignment elements for positioning the service units relative to the work site can thus be dispensed with.
  • the design of the signal units is basically freely selectable. According to a development of the invention, it is provided that the signal units have an LED display.
  • the use of LED displays is characterized by their good visibility from a distance. In addition, LED displays are particularly low-maintenance and energy-efficient.
  • the display unit has several signal units assigned to the individual work stations, which are arranged at the respective work stations and on which the result of the check is displayed by means of different light signals.
  • a signal unit is arranged at each work station and/or the textile machine control unit, which indicates the result of the check directly for each work station.
  • the signal unit is arranged in an area that is easily visible to the machine operator in such a way that he can also clearly see from a distance when individual work stations require maintenance.
  • the arrangement of the signal unit at which jobs can error-prone jobs that is, those whose production figures exceed specified limits, identified particularly easily from afar and necessary maintenance work in the ways are guided.
  • the method according to the invention it is also possible to indicate in good time that a can is about to run empty, so that the organization or provision of a new, full can can be initiated in good time.
  • the time window for the advance warning on the signal unit can be set by a machine operator on the textile machine control unit. After changing the pot, this is acknowledged so that the corresponding counter is restarted.
  • the emptying of the can can be monitored, for example, via the recordable production of the work station, determined in meters or kilograms, or via the diameter of the pay-off spool.
  • the signal unit lights up continuously when the can content is sufficient and changes to flashing when a specified limit value is reached.
  • the optical output of the results of the check by the signal unit can in principle take place in any way, for example by means of a continuous light and a flashing light with different flashing frequencies.
  • the result of the check is displayed using light signals of different brightness and/or color.
  • a colored display is characterized by its particularly good readability by a machine operator. For example, problematic jobs can be marked with a red light and properly working jobs with a green light, which the machine operator can see particularly well from a distance. Particularly serious faults can also be indicated by a red flashing light.
  • work sites with the same product groups are identified by means of the light signals.
  • the work stations that process the same product groups can be marked with correspondingly colored light signals will. This also enables jobs that are not assigned to any product group to be entered quickly.
  • the processing of the key production figures determined at the work stations and their comparison with predeterminable reference values can in principle take place in any desired manner.
  • the production indicators to be checked are determined from an average of at least two or more individual production indicators determined over a selectable period of time, in particular at selectable intervals or at selectable times.
  • the mean value of individual production key figures, such as the number of clearer cuts or yarn breaks or the efficiency, i.e. what percentage of the possible machine running time is achieved, or the piecing reliability, i.e. the ratio of the number of successful piecings to the number of piecing attempts, is constantly updated over a defined period of time.
  • the mean value is preferably determined from the arithmetic, geometric or harmonic mean value or from a combination of at least two of these mean values. This refinement of the invention thus enables early detection of a deteriorating production process at the work stations.
  • In 1 is shown in a schematic representation of an embodiment of a designed as a spinning machine 1 textile machine with a plurality of adjacently arranged spinning positions 2, which form the individual work stations of the textile machine.
  • the spinning stations 2 are controlled and monitored via a central textile machine control unit 3.
  • An input unit, not shown here, on the textile machine control unit 3 allows a machine operator to enter process parameters and query production key figures, among other things.
  • signal unit 4 is arranged at each spinning position 2, which has a colored Light signal indicates the operating status of the spinning position 2.
  • Spinning positions 2 working within the specified limit values are identified by a green light signal.
  • Spinning positions 2 to be serviced are marked with a continuous red light.
  • the signal units 4 are arranged in such a way that spinning positions 2 requiring maintenance can be detected both remotely by a machine operator and also by an automatically operating service unit that can be moved along the spinning positions 2 and is not shown here.
  • a spinning station 2 requiring maintenance is displayed according to the settings made on the textile machine control unit 3 . After selecting one or more production key figures from a given set, e.g. the efficiency, an observation period is defined.
  • the efficiency preferably corresponds to a ratio of actual production time, which is a time in which production actually took place, to a target production time, which is a time in which production could take place.
  • actually produced more preferably means that the corresponding spinning station 2 has spun yarn
  • could be produced describes a state in which the spinning station is in a productive state but is not spinning yarn. The latter can be the case, for example, when the spinning station is in a waiting state in which the spinning station 2 is waiting for something, such as the feeding of a new sliver can, the changing of a finished package, the removal of a blockage by the operator, or the like. waits.
  • a common point in time can be specified as a reference point for both the actual production time and the target production time, such as the beginning of the observation period and a point in time at the start of the shift. If, purely as an example, a spinning position 2 was in a productive state for 60 minutes from the start of the shift, but has only produced 53 minutes of this since the start of the shift, the efficiency of spinning position 2 for the period under consideration is approx. 88.3%.
  • a definable production group consisting of a predeterminable number of spinning positions 2 or even the spinning machine comprising all spinning positions 2 with regard to a selected production indicator such as e.g. the useful effect.
  • the average efficiency of a number of spinning positions 2 combined into a production group preferably results from a sum of the actual production times of these spinning positions 2 divided by a sum of the target production times of these spinning positions 2.
  • a current efficiency is defined an instantaneous value which, based on this number of spinning positions 2, indicates how many spinning positions 2 are currently producing or spinning a yarn.
  • the production group can include 600 spinning positions 2, of which 578 spinning positions 2 are currently producing or spinning a yarn. This results in the current efficiency of approx. 96.3%.
  • the average efficiency is particularly suitable for evaluating and assessing production quality, while the current efficiency can be used to analyze a trend and identify any problems at an early stage.
  • the quantity produced, length, weight or another suitable parameter can be used as the basis for calculation.
  • the length or the weight proves to be advantageous when there is no linear relationship between a production time and a production quantity.
  • the textile machine control unit 3 records the efficiency of all spinning positions 2 after the determination of the observation period at predetermined intervals, for example every 2 minutes, and stores these in a memory of the textile machine control unit 3 . After the specified observation period of 4 hours, for example, 120 measurements are available. The textile machine control unit 3 now determines for the first time the mean value of the useful effect over the observation period. From then on, the average is determined with each new reading, i.e. every 2 minutes over the last 4 hours. I.e. the mean value is constantly updated so that the efficiency for each spinning position 2 over the last 4 hours is permanently available.
  • this spinning position 2 is marked as requiring maintenance by a corresponding light signal on the signaling unit 4 .
  • This spinning station 2 can be quickly identified remotely by a machine operator, so that appropriate countermeasures can be initiated immediately. After the disturbance has been eliminated, the average efficiency increases again and after the fixed lower limit value has been exceeded, this spinning station becomes 2 again flagged as properly working by the textile machine control unit 3.
  • other key production figures can also be used for monitoring. This can be, for example, the number of clearer cuts or yarn breaks as well as the piecing reliability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung betrifft eine Textilmaschine mit mehreren Arbeitsstellen, insbesondere Spinnstellen, mit

  • einer Textilmaschinensteuereinheit, die zur Erfassung unterschiedlicher Produktionskennzahlen der einzelnen Arbeitsstellen und Überprüfung der Produktionskennzahlen hinsichtlich einer Überschreitung von vorgegebenen Grenzwerten ausgebildet ist,
  • einer Eingabeeinheit zur Eingabe der Grenzwerte und Auswahl der zu überprüfenden Produktionskennzahlen und
  • einer Anzeigeeinheit, die zur optischen Ausgabe des Ergebnisses der Überprüfung mit der Textilmaschinensteuereinheit verbunden ist,
sowie ein Verfahren zur Überwachung einer mehrere Arbeitsstellen, insbesondere Spinnstellen aufweisenden Textilmaschine, bei dem mittels einer Textilmaschinensteuereinheit
  • unterschiedliche Produktionskennzahlen der einzelnen Arbeitsstellen erfasst,
  • die auswählbaren Produktionskennzahlen hinsichtlich einer Überschreitung von vorgegebenen Grenzwerten überprüft und
  • anschließend das Ergebnis der Überprüfung über eine Anzeigeeinheit optisch angezeigt werden.
The invention relates to a textile machine with several work stations, in particular spinning stations
  • a textile machine control unit, which is designed to record different production key figures of the individual work stations and to check the production key figures with regard to whether predetermined limit values are exceeded,
  • an input unit for entering the limit values and selecting the production key figures to be checked and
  • a display unit which is connected to the textile machine control unit for optical output of the result of the check,
and a method for monitoring a textile machine having a plurality of work stations, in particular spinning stations, in which by means of a textile machine control unit
  • different production key figures of the individual jobs are recorded,
  • the selectable production key figures are checked with regard to exceeding specified limit values and
  • then the result of the check is displayed visually on a display unit.

Eine kontinuierliche Überwachung und Auswertung der Produktionskennzahlen der einzelnen Arbeitsstellen, bspw. Spinnstellen einer Textilmaschine ist Voraussetzung für einen produktiven Betrieb der Textilmaschine. Die Betrachtung der über geeignete Sensoren ermittelten Produktionskennzahlen, wie Anspinnsicherheit, Anzahl der Fadenbrüche, Anzahl der Reinigerschnitte, Nutzeffekt oder dergleichen über einen definierbaren, den aktuellen Betrieb umfassenden Zeitraum, ermöglicht es dem Maschinenbetreiber, frühzeitig problembehaftete Arbeitsstellen zu erkennen, so dass entsprechende Gegenmaßnahmen eingeleitet werden können, welche bspw. durch sogenannte Serviceaggregate durchgeführt werden, die an der Textilmaschine entlang der Arbeitsstellen verfahrbar sind und Wartungsvorgänge an den Arbeitsstellen selbsttätig ausführen.Continuous monitoring and evaluation of the key production figures of the individual work stations, e.g. spinning stations of a textile machine, is a prerequisite for productive operation of the textile machine. The observation of the production key figures determined by suitable sensors, such as piecing reliability, number of yarn breaks, number of clearer cuts, efficiency or the like over a definable period of time encompassing the current operation, enables the machine operator to identify problematic jobs at an early stage so that appropriate countermeasures can be initiated which can be carried out, for example, by so-called service units, which can be moved along the work stations on the textile machine and carry out maintenance processes at the work stations automatically.

Die DE 199 30 714 A1 offenbart eine Textilmaschine mit einer Maschinensteuervorrichtung, einer Anzeigevorrichtung mit Lämpchen oder Dioden und einer Wartungsvorrichtung.the DE 199 30 714 A1 discloses a textile machine with a machine control device, a display device with lamps or diodes and a maintenance device.

Aus der EP 0 365 901 ist es bekannt, spezifische Produktionskennzahlen fortlaufend über ein wanderndes Intervall zu erfassen und statistisch auszuwerten, wodurch ständig aktualisierte Mittelwerte zur Bewertung der jeweiligen Produktion zur Verfügung stehen. Diese Mittelwerte können hinsichtlich ihrer Abweichungen von Referenzwerten überprüft werden. Überschreiten die Abweichungen vorgegebene Grenzwerte, wird dies signalisiert, so dass entsprechende Wartungsarbeiten durchgeführt werden können.From the EP 0 365 901 it is known to continuously record and statistically evaluate specific production key figures over a moving interval, as a result of which constantly updated mean values are available for evaluating the respective production. These mean values can be checked with regard to their deviations from reference values. exceed the Deviations from specified limit values are signaled so that appropriate maintenance work can be carried out.

Wesentlich hierfür ist eine eindeutige Kennzeichnung der problembehafteten Arbeitsstelle, sodass diese schnell identifizierbar ist und umgehend Gegenmaßnahmen eingeleitet werden können. Bekannte Anzeigen an Displays von zentralen Steuereinheiten erfordern eine ständige Überwachung der Anzeigen durch einen Maschinenbediener, um ggf. vorliegende Signalisierungen zu erfassen. In Abwesenheit des Maschinenbedieners von der Steuereinheit angezeigte Signalisierungen bleiben bis zur Rückkehr des Maschinenbedieners unerkannt, was zu längeren Produktionsausfällen an den betroffenen Arbeitsstellen führen kann.It is essential for this to clearly identify the problematic job so that it can be identified quickly and countermeasures can be taken immediately. Known displays on displays of central control units require the displays to be constantly monitored by a machine operator in order to detect any signals that may be present. Signals displayed by the control unit in the absence of the machine operator remain undetected until the machine operator returns, which can lead to longer production downtimes at the affected work stations.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Überwachung einer Textilmaschine mit mehreren Arbeitsstellen sowie eine Textilmaschine mit mehreren Arbeitsstellen bereitzustellen, die eine schnelle Erfassung und Identifizierung solcher Arbeitsstellen ermöglichen, deren Produktionskennzahlen vorgegebene Grenzwerte überschreiten.Proceeding from this, the invention is based on the object of providing a method for monitoring a textile machine with several work stations and a textile machine with several work stations, which enable fast detection and identification of those work stations whose production parameters exceed predetermined limit values.

Die Erfindung löst die Aufgabe durch eine Textilmaschine mit den Merkmalen des Anspruchs 1 sowie ein Verfahren zur Überwachung einer Textilmaschine mit den Merkmalen des Anspruchs 5. Vorteilhafte Weiterbildungen der Textilmaschine sind in den abhängigen Ansprüchen 2 bis 4, vorteilhafte Weiterbildung des Verfahrens in den abhängigen Ansprüchen 6 bis 8 angegeben.The invention solves the problem by a textile machine with the features of claim 1 and a method for monitoring a textile machine with the features of claim 5. Advantageous developments of the textile machine are in the dependent claims 2 to 4, advantageous developments of the method in the dependent claims 6 indicated up to 8.

Kennzeichnend für die erfindungsgemäße Textilmaschine ist, dass die Anzeigeeinheit mehrere an den jeweiligen Arbeitsstellen angeordnete, den einzelnen Arbeitsstellen zugeordnete Signaleinheiten aufweist, die derart ausgebildet sind, dass das Ergebnis der Überprüfung der wenigstens einen ausgewählten zu überprüfenden Produktionskennzahl hinsichtlich einer Überschreitung des zugeordneten vorgegebenen Grenzwertes mittels unterschiedlicher Lichtsignale angezeigt wird.It is characteristic of the textile machine according to the invention that the display unit has several signal units arranged at the respective work stations and assigned to the individual work stations, which are designed in such a way that the result of the check of the at least one selected production key figure to be checked with regard to exceeding the assigned predetermined limit value by means of different light signals is displayed.

Im Sinne der vorliegenden Erfindung ist unter einer Produktionskennzahl ein Wert zu verstehen, welcher sich aus einer vorgebbaren oder vorgegebenen Verknüpfung von wenigstens zwei oder mehr, insbesondere zueinander unterschiedlichen, definierten Werten ergibt.For the purposes of the present invention, a production indicator is a value that results from a predefinable or predetermined combination of at least two or more defined values, in particular values that are different from one another.

Erfindungsgemäß ist an jeder Arbeitsstelle eine Signaleinheit angeordnet, die das Ergebnis der Überprüfung unmittelbar an der Arbeitsstelle anzeigt. Die Signaleinheit ist dabei derart im für den Maschinenbediener gut sichtbaren Bereich angeordnet, dass diese auch aus der Ferne eindeutig zu erkennen ist, so dass fehlerbehaftete Arbeitsstellen, das heißt solche deren Produktionskennzahlen vorgegebene Grenzwerte überschreiten, auch dann aus der Ferne identifiziert werden können, wenn der Maschinenbediener nicht ein Display der Anzeigeeinheit im Blick hat. Erforderliche Wartungsarbeiten können somit erkannt und in die Wege geleitet werden.According to the invention, a signal unit is arranged at each work station, which displays the result of the check directly at the workplace. The signal unit is arranged in an area that is easily visible to the machine operator in such a way that it can also be clearly recognized from a distance, so that faulty work stations, i.e. those whose production figures exceed specified limit values, can also be identified from afar if the machine operator does not have a display of the display unit in view. Necessary maintenance work can thus be identified and initiated.

Aufgrund der guten Erfassung wartungsbedürftiger Arbeitsstellen, können notwendige Wartungsarbeiten kurzfristig ausgelöst werden, sodass für die zu wartenden Arbeitsstelle eine ausreichend hohe Produktivität gewährleistet werden kann. Insgesamt kann somit eine hohe Produktivität der Textilmaschine aufrechterhalten werden, nachdem schlecht laufende bzw. nicht ordnungsgemäß funktionierende Arbeitsstellen kurzfristig angepasst werden können.Due to the good recording of jobs requiring maintenance, necessary maintenance work can be triggered at short notice, so that a sufficiently high productivity can be guaranteed for the job to be maintained. Overall, high productivity of the textile machine can thus be maintained after poorly running or improperly functioning jobs can be adjusted at short notice.

Die erfindungsgemäße Textilmaschine erlaubt zudem auch die Signalisierung einer leerlaufenden, ein Faserband für eine Spinnmaschine enthaltenden Kanne - aus der einer Spinnmaschine kontinuierlich ein Faserband zugeführt wird - mit einer ausreichenden Vorwarnzeit. Entsprechende Maßnahme, wie das Anfordern und Bereitstellen einer neuen Kanne können durch einen Maschinenbediener manuell oder automatisiert rechtzeitig in die Wege geleitet werden. Der Wechsel einer Kanne ist bevorzugt zu quittieren, wobei nachfolgend beispielsweise über die erfassbare Produktion der Arbeitsstelle ein Leerlaufen der Kanne überwacht werden kann. Zu überwachende Produktionskennzahlen der Kanne können bspw. die Länge des Faserbandes der Kanne in Metern, das Gewicht des Faserbandes oder der Durchmesser der Auflaufspule sein, welche besonders zuverlässig eine rechtzeitige Signalisierung eines erforderlichen Austauschs der Kanne ermöglichen.The textile machine according to the invention also allows the signaling of an empty can containing a sliver for a spinning machine—from which a sliver is continuously fed to a spinning machine—with a sufficient advance warning time. Appropriate measures, such as requesting and providing a new can, can be initiated in good time by a machine operator, either manually or automatically. The change of a can is preferably to be acknowledged, in which case, for example, emptying of the can can be monitored via the detectable production of the work station. Can production key figures to be monitored can be, for example, the length of the sliver of the can in meters, the weight of the sliver or the diameter of the take-up bobbin, which particularly reliably enable timely signaling that the can needs to be replaced.

Die an den Arbeitsstellen angeordneten Signaleinheiten ermöglichen ferner die Kennzeichnung und Identifizierung solcher Arbeitsstellen, auf denen übereinstimmende Produktgruppen, bspw. gleiche Garne verarbeitet werden sowie solcher Arbeitsstellen, die keinen Produktgruppen zugeordnet sind.The signal units arranged at the work stations also make it possible to mark and identify those work stations on which matching product groups, for example the same yarns, are processed, as well as those work stations that are not assigned to any product groups.

Die Ausgestaltung der Signaleinheiten zur Signalisierung der Ergebnisse der Überprüfung der Überwachungsergebnisse kann grundsätzlich in beliebiger Weise durch die Signaleinheiten erfolgen. Nach einer vorteilhaften Ausgestaltung der Erfindung ist die Signaleinheit jedoch zur Anzeige des Ergebnisses der Überprüfung mittels unterschiedlich heller und/oder farbiger Lichtsignale ausgebildet.The design of the signal units for signaling the results of the checking of the monitoring results can in principle be carried out by the signal units in any way. According to an advantageous embodiment of the invention, however, the signal unit is designed to display the result of the check by means of light signals of different brightness and/or colors.

Im Falle der Anzeige der Ergebnisse mittels unterschiedlich heller Lichtsignale ist bspw. vorgesehen, dass im Rahmen der festgelegten Produktionskennzahlen arbeitende Arbeitsstellen durch ausgeschaltete oder mit einer geringen Intensivität leuchtenden Signaleinheiten gekennzeichnet werden, wohingegen problembehaftete Arbeitsstellen durch mit hoher Intensität leuchtende Signaleinheiten gekennzeichnet werden. Diese Ausgestaltung der Erfindung ermöglicht in besonders vorteilhafter Weise eine schnelle Identifikation problembehafteter Arbeitsstellen durch einen Maschinenbediener. Notwendige Wartungsarbeiten können somit kurzfristig durch den Maschinenbediener initiiert werden.If the results are displayed by means of light signals of different brightness, it is provided, for example, that work areas working within the framework of the specified production indicators are identified by signal units that are switched off or illuminated with low intensity, whereas problematic work areas are identified by signal units illuminated with high intensity. In a particularly advantageous manner, this refinement of the invention enables a machine operator to identify problem-prone jobs quickly. Necessary maintenance work can thus be initiated at short notice by the machine operator.

Alternativ oder ergänzend zu der Anzeige der Produktivität der Arbeitsstellen über unterschiedlich helle Signaleinheiten können diese auch zur farbigen Anzeige der Ergebnisse der Überprüfung ausgebildet sein. Diese Ausgestaltung ermöglicht einem Maschinenbediener in besonders vorteilhafter Weise die sofortige Erfassung wartungsbedürftiger Arbeitsstellen. So können im vorgegebenen Rahmen arbeitende Arbeitsstellen bspw. durch eine ein grünes Lichtsignal anzeigende Signaleinheit gekennzeichnet werden. Wartungsbedürftige bzw. fehlerhaft arbeitende Arbeitsstellen können durch eine abweichende Farbe, bspw. rot gekennzeichnet werden. Dieser Kontrast der Signaleinheiten erleichtert einem Maschinenbediener die Erfassung - insbesondere aus der Ferne - solcher Arbeitsstellen, deren Produktionskennzahlen außerhalb der vorgegebenen Grenzwerte liegen.As an alternative or in addition to displaying the productivity of the work stations using signal units of different brightness, these can also be designed to display the results of the check in color. This configuration enables a machine operator to immediately detect work areas requiring maintenance in a particularly advantageous manner. For example, jobs that work within the specified framework can be identified by a signal unit displaying a green light signal. Work areas that require maintenance or work incorrectly can be identified by a different color, e.g. red. This contrast of the signal units makes it easier for a machine operator to detect - especially from a distance - those work stations whose production figures are outside the specified limit values.

Alternativ oder ergänzend zu der Anzeige der Produktivität der Arbeitsstellen über unterschiedlich helle und/oder farbige Signaleinheiten ist nach einer Weiterbildung der Erfindung vorgesehen, dass die Signaleinheiten zur Anzeige des Ergebnisses der Überprüfung mittels Dauerlicht und Blinklicht ausgebildet sind. Diese Ausgestaltung der Erfindung verbessert die Erkennbarkeit wartungsbedürftiger Arbeitsstellen aus der Ferne in ergänzender Weise. Dabei kann die Frequenz des Blinklichts an die Wartungsbedürftigkeit angepasst sein. Vorranging zu wartende Arbeitsstellen können dabei durch ein mit einer hohen Frequenz blinkendes Signallicht gekennzeichnet werden, wobei nachrangig zu wartenden Arbeitsstellen mit einem eine niedrige Frequenz aufweisenden Blinklicht gekennzeichnet werden. Einem Maschinenbediener wird somit in besonders vorteilhafter Weise die Wartungsbedürftigkeit der einzelnen Arbeitsstellen angezeigt.As an alternative or in addition to displaying the productivity of the work stations using signal units of different brightness and/or color, a further development of the invention provides for the signal units to be designed to display the result of the check using a continuous light and a flashing light. This refinement of the invention improves the ability to remotely identify work sites requiring maintenance in an additional manner. The frequency of the flashing light can be adapted to the need for maintenance. Work sites that require priority maintenance can be identified by a signal light that flashes at a high frequency, with work sites that require maintenance that have a lower priority being identified by a flashing light that has a low frequency. The need for maintenance of the individual work stations is thus displayed to a machine operator in a particularly advantageous manner.

Die Anordnung der Signaleinheiten an den Arbeitsstellen erfolgt in der Weise, dass diese durch einen Wartungsarbeiter auch aus der Ferne in komfortabler Weise zu erkennen sind. Erfindungsgemäß ist vorgesehen, dass die Signaleinheiten derart an den Arbeitsstellen angeordnet und die Lichtsignale derart an den Signaleinheiten erzeugt werden, dass diese zur automatischen Identifizierung und/oder Ausrichtung eines eine optische Erfassungseinrichtung aufweisenden Serviceaggregats gegenüber den Arbeitsstellen verwendbar sind.The arrangement of the signal units at the work sites is such that they can be easily recognized by a maintenance worker from afar. According to the invention, the signal units are arranged at the work sites and the light signals are generated at the signal units in such a way that they can be used for automatic identification and/or alignment of a service unit having an optical detection device with respect to the work sites.

Die Signaleinheit ermöglicht einem Serviceaggregat die automatische Erfassung wartungsbedürftiger Arbeitsstellen. Die Signaleinheiten sind darüber hinaus oder alternativ derart ausgebildet, dass das Serviceaggregat, das Wartungsarbeiten automatisiert durchführt, sich über die Signaleinheiten gegenüber der Arbeitsstelle ausrichtet. Die Signaleinheit, bspw. ein Leuchtband, weist hierzu spezielle, bspw. hellere Signalpunkte auf, die dem Serviceaggregat eine optimale Ausrichtung gegenüber der Arbeitsstelle ermöglichen. Auf zusätzliche Ausrichtelemente zur Positionierung der Serviceaggregate gegenüber der Arbeitsstelle kann somit verzichtet werden.The signal unit enables a service unit to automatically record work areas that require maintenance. In addition or as an alternative, the signal units are designed in such a way that the service unit, which carries out maintenance work in an automated manner, is aligned with the work site via the signal units. For this purpose, the signal unit, e.g. Additional alignment elements for positioning the service units relative to the work site can thus be dispensed with.

Die Ausgestaltung der Signaleinheiten ist grundsätzlich frei wählbar. Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Signaleinheiten eine LED-Anzeige aufweisen. Die Verwendung von LED-Anzeigen zeichnet sich durch ihre gute Erkennbarkeit aus der Ferne aus. Zudem sind LED-Anzeigen besonders wartungsarm und energieeffizient.The design of the signal units is basically freely selectable. According to a development of the invention, it is provided that the signal units have an LED display. The use of LED displays is characterized by their good visibility from a distance. In addition, LED displays are particularly low-maintenance and energy-efficient.

Kennzeichnend für das erfindungsgemäße Verfahren ist, dass die Anzeigeeinheit mehrere den einzelnen Arbeitsstellen zugeordnete Signaleinheiten aufweist, die an den jeweiligen Arbeitsstellen angeordnet sind und an denen das Ergebnis der Überprüfung mittels unterschiedlicher Lichtsignale angezeigt wird. Erfindungsgemäß ist an jeder Arbeitsstelle und/oder der Textilmaschinensteuereinheit eine Signaleinheit angeordnet, die das Ergebnis der Überprüfung unmittelbar für jede Arbeitsstelle anzeigt. Die Signaleinheit ist dabei derart im für den Maschinenbediener gut sichtbaren Bereich angeordnet, dass für diesen auch aus der Ferne eindeutig zu erkennen ist, wenn einzelne Arbeitsstellen einen Wartungsbedarf aufweisen. Im Falle der Anordnung der Signaleinheit an denen Arbeitsstellen können fehlerbehaftete Arbeitsstellen, das heißt solche, deren Produktionskennzahlen vorgegebene Grenzwerte überschreiten, auch aus der Ferne besonders einfach identifiziert und erforderliche Wartungsarbeiten in die Wege geleitet werden.It is characteristic of the method according to the invention that the display unit has several signal units assigned to the individual work stations, which are arranged at the respective work stations and on which the result of the check is displayed by means of different light signals. According to the invention, a signal unit is arranged at each work station and/or the textile machine control unit, which indicates the result of the check directly for each work station. The signal unit is arranged in an area that is easily visible to the machine operator in such a way that he can also clearly see from a distance when individual work stations require maintenance. In the case of the arrangement of the signal unit at which jobs can error-prone jobs, that is, those whose production figures exceed specified limits, identified particularly easily from afar and necessary maintenance work in the ways are guided.

Aufgrund der guten Erfassung wartungsbedürftiger Arbeitsstellen, können notwendige Wartungsarbeiten kurzfristig ausgelöst werden, sodass für die zu wartenden Arbeitsstelle eine hohe Produktivität gewährleistet werden kann. Insgesamt kann somit eine hohe Produktivität der Textilmaschine aufrechterhalten werden, nachdem schlecht laufende bzw. nicht ordnungsgemäß funktionierende Arbeitsstellen kurzfristig angepasst werden können.Due to the good recording of jobs requiring maintenance, necessary maintenance work can be triggered at short notice, so that high productivity can be guaranteed for the job to be maintained. Overall, high productivity of the textile machine can thus be maintained after poorly running or improperly functioning jobs can be adjusted at short notice.

Mittels des erfindungsgemäßen Verfahrens ist es ferner möglich, rechtzeitig das nahende Leerlaufen einer Kanne anzuzeigen, so dass das Organisieren bzw. Bereitstellen einer neuen, vollen Kanne zeitgerecht in die Wege geleitet werden kann. Das Zeitfenster für die Vorwarnung an der Signaleinheit kann dabei von einem Maschinenbediener an der Textilmaschinensteuereinheit eingestellt werden. Nach einem Wechsel der Kanne wird dies quittiert, sodass der entsprechende Zähler neu gestartet wird. Das Leerlaufen der Kanne kann bspw. über die erfassbare Produktion der Arbeitsstelle, ermittelt in Metern oder Kilogramm oder über den Durchmesser der Ablaufspule, überwacht werden. Zur Kannenüberwachung kann bspw. vorgesehen sein, dass die Signaleinheit bei ausreichendem Kanneninhalt stetig leuchtet und bei Erreichen eines festgelegten Grenzwertes in ein Blinken übergeht.By means of the method according to the invention it is also possible to indicate in good time that a can is about to run empty, so that the organization or provision of a new, full can can be initiated in good time. The time window for the advance warning on the signal unit can be set by a machine operator on the textile machine control unit. After changing the pot, this is acknowledged so that the corresponding counter is restarted. The emptying of the can can be monitored, for example, via the recordable production of the work station, determined in meters or kilograms, or via the diameter of the pay-off spool. For can monitoring, it can be provided, for example, that the signal unit lights up continuously when the can content is sufficient and changes to flashing when a specified limit value is reached.

Die optische Ausgabe der Ergebnisse der Überprüfung durch die Signaleinheit kann grundsätzlich in beliebiger Weise, bspw. durch Dauerlicht und Blinklicht mit unterschiedlichen Blinkfrequenzen erfolgen. Nach einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass das Ergebnis der Überprüfung mittels unterschiedlich heller und/oder farbiger Lichtsignale angezeigt wird. Eine farbige Anzeige zeichnet sich dabei durch seine besonders gute Erfassbarkeit durch einen Maschinenbediener aus. So können bspw. problembehaftete Arbeitsstellen durch ein rotes Licht und ordnungsgemäß arbeitende Arbeitsstellen durch ein grünes Licht gekennzeichnet werden, was durch den Maschinenbediener auch aus der Ferne besonders gut zu erkennen ist. Besonders schwere Störungen können ergänzend durch ein rotes Blinklicht angezeigt werden.The optical output of the results of the check by the signal unit can in principle take place in any way, for example by means of a continuous light and a flashing light with different flashing frequencies. According to an advantageous development of the invention, it is provided that the result of the check is displayed using light signals of different brightness and/or color. A colored display is characterized by its particularly good readability by a machine operator. For example, problematic jobs can be marked with a red light and properly working jobs with a green light, which the machine operator can see particularly well from a distance. Particularly serious faults can also be indicated by a red flashing light.

Nach einer Weiterbildung der Erfindung ist ferner vorgesehen, dass mittels der Lichtsignale Arbeitsstellen mit gleichen Produktgruppen gekennzeichnet werden. Im Falle der vorteilhafter Weise vorgesehenen Verwendung von farbigen Lichtsignalen können so die Arbeitsstellen, die gleiche Produktgruppen verarbeiten, mit übereinstimmend farbigen Lichtsignalen gekennzeichnet werden. Dies ermöglicht auch die schnelle Erfassung solcher Arbeitsstellen, die keiner Produktgruppe zugeordnet sind.According to a further development of the invention, it is also provided that work sites with the same product groups are identified by means of the light signals. In the case of the use of colored light signals, which is advantageously provided, the work stations that process the same product groups can be marked with correspondingly colored light signals will. This also enables jobs that are not assigned to any product group to be entered quickly.

Die Verarbeitung der an den Arbeitsstellen ermittelten Produktionskennzahlen und deren Abgleich mit vorgebbaren Referenzwerten kann grundsätzlich in beliebiger Weise erfolgen. Nach einer weiteren Ausgestaltung der Erfindung ist jedoch vorgesehen, dass die zu überprüfenden Produktionskennzahlen aus einem Mittelwert wenigstens zweier oder mehrerer über einen wählbaren Zeitraum, insbesondere in wählbaren Intervallen oder zu wählbaren Zeitpunkten, ermittelter einzelner Produktionskennzahlen ermittelt werden. Der Mittelwert einzelner Produktionskennzahlen bspw. wie die Anzahl der Reinigerschnitte oder Fadenbrüche oder der Nutzeffekt, d.h. wieviel Prozent der möglichen Maschinenlaufzeit erreicht werden, oder die Anspinnsicherheit, d.h. das Verhältnis der Anzahl erfolgreicher Anspinner zur Anzahl von Anspinnversuchen, wird über einen festgelegten Zeitraum ständig aktualisiert. Überschreitet der Mittelwert einen festlegbaren Grenzwert, wird dies an der Signaleinheit angezeigt. Der Mittelwert ist in bevorzugter Weise ermittelt aus dem arithmetischen, geometrischen oder harmonischen Mittelwert oder aus einer Kombination aus wenigstens zwei dieser Mittelwerte. Diese Ausgestaltung der Erfindung ermöglicht somit eine frühzeitige Erkennung eines sich verschlechternden Produktionsprozesses an den Arbeitsstellen.The processing of the key production figures determined at the work stations and their comparison with predeterminable reference values can in principle take place in any desired manner. According to a further embodiment of the invention, however, it is provided that the production indicators to be checked are determined from an average of at least two or more individual production indicators determined over a selectable period of time, in particular at selectable intervals or at selectable times. The mean value of individual production key figures, such as the number of clearer cuts or yarn breaks or the efficiency, i.e. what percentage of the possible machine running time is achieved, or the piecing reliability, i.e. the ratio of the number of successful piecings to the number of piecing attempts, is constantly updated over a defined period of time. If the mean value exceeds a definable limit value, this is displayed on the signal unit. The mean value is preferably determined from the arithmetic, geometric or harmonic mean value or from a combination of at least two of these mean values. This refinement of the invention thus enables early detection of a deteriorating production process at the work stations.

Ein Ausführungsbeispiel der Erfindung wird nachstehend mit Bezug auf eine Figur erläutert. In der Zeichnung zeigt:

Fig. 1
in einer Seitenansicht eine schematische Darstellung einer Spinnmaschine mit mehreren Spinnstellen.
An embodiment of the invention is explained below with reference to a figure. In the drawing shows:
1
in a side view a schematic representation of a spinning machine with several spinning positions.

In Fig. 1 ist in einer schematischen Darstellung eine Ausführungsform einer als Spinnmaschine 1 ausgebildeten Textilmaschine mit einer Vielzahl benachbart angeordneter Spinnstellen 2 dargestellt, die die einzelnen Arbeitsstellen der Textilmaschine bilden. Eine Steuerung und Überwachung der Spinnstellen 2 erfolgt über eine zentrale Textilmaschinensteuereinheit 3. Eine hier nicht dargestellte Eingabeeinheit an der Textilmaschinensteuereinheit 3 erlaubt einem Maschinenbediener u.a. die Eingabe von Prozessparametern sowie die Abfrage von Produktionskennzahlen. Zur Signalisierung von wartungsbedürftigen Spinnstellen 2 ist an jeder Spinnstelle 2 eine mit der Textilmaschinensteuereinheit 3 verbundene Signaleinheit 4 angeordnet, welche über ein farbiges Lichtsignal den Betriebszustand der Spinnstelle 2 kennzeichnet. Im Rahmen festgelegter Grenzwerte arbeitende Spinnstellen 2 werden durch ein grünes Lichtsignal gekennzeichnet. Zu wartende Spinnstellen 2 werden mit einem roten Dauerlicht gekennzeichnet. Die Signaleinheiten 4 sind dabei derart angeordnet, dass wartungsbedürftige Spinnstellen 2 sowohl aus der Ferne durch einen Maschinenbediener gut erfasst werden können, als auch von einem automatisch arbeitenden, hier nicht dargestellten, entlang der Spinnstellen 2 verfahrbaren, Serviceaggregat detektierbar sind.In 1 is shown in a schematic representation of an embodiment of a designed as a spinning machine 1 textile machine with a plurality of adjacently arranged spinning positions 2, which form the individual work stations of the textile machine. The spinning stations 2 are controlled and monitored via a central textile machine control unit 3. An input unit, not shown here, on the textile machine control unit 3 allows a machine operator to enter process parameters and query production key figures, among other things. To signal maintenance-requiring spinning positions 2 a connected to the textile machine control unit 3 signal unit 4 is arranged at each spinning position 2, which has a colored Light signal indicates the operating status of the spinning position 2. Spinning positions 2 working within the specified limit values are identified by a green light signal. Spinning positions 2 to be serviced are marked with a continuous red light. The signal units 4 are arranged in such a way that spinning positions 2 requiring maintenance can be detected both remotely by a machine operator and also by an automatically operating service unit that can be moved along the spinning positions 2 and is not shown here.

Die Anzeige einer wartungsbedürftigen Spinnstelle 2 erfolgt nach Maßgabe der an der Textilmaschinensteuereinheit 3 vorgenommenen Einstellungen. Nach Auswahl einer oder mehrerer Produktionskennzahlen aus einer vorgegebenen Menge, bspw. des Nutzeffekts, wird ein Beobachtungszeitraum festgelegt.A spinning station 2 requiring maintenance is displayed according to the settings made on the textile machine control unit 3 . After selecting one or more production key figures from a given set, e.g. the efficiency, an observation period is defined.

Der Nutzeffekt korrespondiert im Sinne der vorliegenden Erfindung in bevorzugter Weise zu einem Verhältnis von Produktions-Istzeit, welche eine Zeit ist, in der tatsächlich produziert wurde, zu einer Produktions-Sollzeit, welche eine Zeit ist, in welcher produziert werden könnte. Im vorliegenden bevorzugten Ausführungsbeispiel bedeutet "tatsächlich produziert" in weiter bevorzugter Weise, dass die entsprechende Spinnstelle 2 Garn gesponnen hat, wohingegen "produziert werden könnte" einen Zustand beschreibt, in welcher sich die Spinnstelle in einem produktionsfähigen Zustand befindet, aber kein Garn spinnt. Letzteres kann beispielsweise der Fall sein, wenn sich die Spinnstelle in einem Wartezustand befindet, in welchem die Spinnstelle 2 auf etwas wie beispielsweise auf das Zuführen einer neuen Spinnkanne, auf das Wechseln einer fertiggestellten Auflaufspule, auf die Beseitigung einer Blockierung durch den Bediener oder ähnliches, wartet. Zur Berechnung des Nutzeffektes kann in weiterhin bevorzugter Weise sowohl für die Produktions-Istzeit als auch für die Produktions-Sollzeit ein gemeinsamer Zeitpunkt als Referenzzeitpunkt festgelegt werden, wie beispielsweise der Beginn des Beobachtungszeitraumes wie ein Zeitpunkt des Schichtbeginns. Sofern sich rein beispielhaft eine Spinnstelle 2 60min seit Schichtbeginn in einem produktionsfähigen Zustand befand, davon aber nur 53min seit Schichtbeginn produziert hat, so beträgt der Nutzeffekt der Spinnstelle 2 für den betrachten Zeitraum ca. 88,3%.In the context of the present invention, the efficiency preferably corresponds to a ratio of actual production time, which is a time in which production actually took place, to a target production time, which is a time in which production could take place. In the present preferred embodiment, "actually produced" more preferably means that the corresponding spinning station 2 has spun yarn, whereas "could be produced" describes a state in which the spinning station is in a productive state but is not spinning yarn. The latter can be the case, for example, when the spinning station is in a waiting state in which the spinning station 2 is waiting for something, such as the feeding of a new sliver can, the changing of a finished package, the removal of a blockage by the operator, or the like. waits. To calculate the efficiency, a common point in time can be specified as a reference point for both the actual production time and the target production time, such as the beginning of the observation period and a point in time at the start of the shift. If, purely as an example, a spinning position 2 was in a productive state for 60 minutes from the start of the shift, but has only produced 53 minutes of this since the start of the shift, the efficiency of spinning position 2 for the period under consideration is approx. 88.3%.

Nach einem weiteren bevorzugten Ausführungsbeispiel kann eine aus einer vorgebbaren Anzahl an Spinnstellen 2 bestehende definierbare Produktionsgruppe oder gar die sämtliche Spinnstellen 2 umfassende Spinnmaschine hinsichtlich einer ausgewählten Produktionskennzahl wie bspw. dem Nutzeffekt betrachtet werden. Bei diesem bevorzugten Ausführungsbeispiel wird zwischen einem mittleren Nutzeffekt und einem aktuellen Nutzeffekt unterschieden. Der mittlere Nutzeffekt einer zu einer Produktionsgruppe (was auch die Spinnmaschine sein kann) zusammengefassten Anzahl an Spinnstellen 2 ergibt sich vorzugsweise aus einer Summe der Produktions-Istzeiten dieser Spinnstellen 2 dividiert durch eine Summe der Produktions-Sollzeiten dieser Spinnstellen 2. Ein aktueller Nutzeffekt definiert hingegen einen Augenblickswert, welcher bezogen auf diese Anzahl an Spinnstellen 2 angibt, wie viele Spinnstellen 2 aktuell produzieren bzw. ein Garn spinnen. Beispielsweise kann die Produktionsgruppe 600 Spinnstellen 2 umfassen, von denen 578 Spinnstellen 2 aktuell produzieren bzw. ein Garn spinnen. Damit ergibt sich der aktuelle Nutzeffekt zu ca. 96,3%. Der mittlere Nutzeffekt eignet sich insbesondere zur Auswertung und Beurteilung einer Produktionsqualität, während der aktuelle Nutzeffekt zur Analyse eines Trends und zum frühzeitigen Erkennen etwaiger Probleme herangezogen werden kann.According to a further preferred embodiment, a definable production group consisting of a predeterminable number of spinning positions 2 or even the spinning machine comprising all spinning positions 2 with regard to a selected production indicator such as e.g. the useful effect. In this preferred embodiment, a distinction is made between an average efficiency and a current efficiency. The average efficiency of a number of spinning positions 2 combined into a production group (which can also be the spinning machine) preferably results from a sum of the actual production times of these spinning positions 2 divided by a sum of the target production times of these spinning positions 2. A current efficiency, on the other hand, is defined an instantaneous value which, based on this number of spinning positions 2, indicates how many spinning positions 2 are currently producing or spinning a yarn. For example, the production group can include 600 spinning positions 2, of which 578 spinning positions 2 are currently producing or spinning a yarn. This results in the current efficiency of approx. 96.3%. The average efficiency is particularly suitable for evaluating and assessing production quality, while the current efficiency can be used to analyze a trend and identify any problems at an early stage.

Nach einem alternativen bevorzugten Ausführungsbeispiel kann anstelle der Zeit durchaus auf die produzierte Menge, Länge, Gewicht oder ein anderer geeigneter Parameter als Berechnungsgrundlage abgestellt werden. Im Besonderen erweist sich die Abstellung auf die Menge, die Länge oder das Gewicht dann als vorteilhaft, wenn kein linearer Zusammenhang zwischen einer Produktionszeit und einer Produktionsmenge existiert.According to an alternative preferred exemplary embodiment, instead of the time, the quantity produced, length, weight or another suitable parameter can be used as the basis for calculation. In particular, focusing on the quantity, the length or the weight proves to be advantageous when there is no linear relationship between a production time and a production quantity.

Im bevorzugten Ausführungsbeispiel erfasst die Textilmaschinensteuereinheit 3 nach Festlegung des Beobachtungszeitraumes in vorbestimmten Abständen, bspw. alle 2 Minuten, die Nutzeffekte aller Spinnstellen 2 und legt diese in einem Speicher der Textilmaschinensteuereinheit 3 ab. Nach Ablauf des festgelegten Beobachtungszeitraums von bspw. 4 Stunden, liegen 120 Messungen vor. Die Textilmaschinensteuereinheit 3 bestimmt nun erstmalig den Mittelwert des Nutzeffekts über den Beobachtungszeitraum. Von da an wird der Mittelwert mit jedem neuen Messwert, also alle 2 Minuten über die letzten 4 Stunden bestimmt. D.h. der Mittelwert wird ständig aktualisiert, so dass permanent der Nutzeffekt für jede Spinnstelle 2 über die letzten 4 Stunden vorliegt.In the preferred exemplary embodiment, the textile machine control unit 3 records the efficiency of all spinning positions 2 after the determination of the observation period at predetermined intervals, for example every 2 minutes, and stores these in a memory of the textile machine control unit 3 . After the specified observation period of 4 hours, for example, 120 measurements are available. The textile machine control unit 3 now determines for the first time the mean value of the useful effect over the observation period. From then on, the average is determined with each new reading, i.e. every 2 minutes over the last 4 hours. I.e. the mean value is constantly updated so that the efficiency for each spinning position 2 over the last 4 hours is permanently available.

Unterschreitet der mittlere Nutzeffekt einer Spinnstelle 2 einen zuvor festgelegten unteren Grenzwert, wird diese Spinnstelle 2 durch ein entsprechendes Lichtsignal an der Signaleinheit 4 als wartungsbedürftig gekennzeichnet. Diese Spinnstelle 2 kann aus der Ferne von einem Maschinenbediener schnell identifiziert werden, so dass umgehend entsprechende Gegenmaßnahmen eingeleitet werden können. Nach Beseitigung der Störung steigt der mittlere Nutzeffekt wieder an und nach Überschreitung des festgelegten unteren Grenzwerts wird diese Spinnstelle 2 wieder als ordnungsgemäß arbeitend durch die Textilmaschinensteuereinheit 3 gekennzeichnet. Alternativ oder ergänzend zur Erfassung des Nutzeffekts können auch andere Produktionskennzahlen zur Überwachung herangezogen werden. Dies können bspw. die Anzahl an Reinigerschnitten oder Fadenbrüchen sowie die Anspinnsicherheit sein.If the average efficiency of a spinning position 2 falls below a previously defined lower limit value, this spinning position 2 is marked as requiring maintenance by a corresponding light signal on the signaling unit 4 . This spinning station 2 can be quickly identified remotely by a machine operator, so that appropriate countermeasures can be initiated immediately. After the disturbance has been eliminated, the average efficiency increases again and after the fixed lower limit value has been exceeded, this spinning station becomes 2 again flagged as properly working by the textile machine control unit 3. As an alternative or in addition to recording the useful effect, other key production figures can also be used for monitoring. This can be, for example, the number of clearer cuts or yarn breaks as well as the piecing reliability.

BezugszeichenlisteReference List

11
Textilmaschine / SpinnmaschineTextile machine / spinning machine
22
Arbeitsstelle / SpinnstelleWork place / spinning position
33
Textilmaschinensteuereinheittextile machine control unit
44
Signaleinheitsignal unit

Claims (8)

  1. A textile machine having a plurality of workstations, more particularly spinning positions, the textile machine comprising
    - a textile machine control unit, which is designed to capture different production figures of the individual workstations and to check whether the production figures exceed specified limit values,
    - an input unit for inputting the limit values and selecting at least one production figure to be checked from the set of production figures to be checked,
    - an indicating unit which is connected to the textile machine control unit for the optical output of the result of the check of the selected production figure to be checked, of which there is at least one, for exceeding the assigned predetermined limit value,
    wherein the indicating unit has a plurality of signal units (4), which are arranged at the respective workstations (2), are associated with the individual workstations (2) and are designed such that the result of the check of the production figure to be examined, of which at least one is selected, for exceeding the allocated, specified limit value is indicated by means of different light signals,
    wherein the textile machine has a service unit which can be moved along the workstations (2), for automatically detecting workstations (2) in need of maintenance and automatically performing maintenance work,
    wherein signal units (4) are arranged at the workstations (2) in such a way and the light signals are produced at said signal units (4) in such a way that said light signals are used by an optical detection device of the service unit for the automatic detection of workstations in need of maintenance and/or for alignment relative to the workstation (2).
  2. The textile machine according to claim 1, wherein the signal units (4) are designed to indicate the result of the check by means of light signals of different brightness and/or colour.
  3. The textile machine according to claim 1 or 2, wherein the signal units (4) are designed to indicate the result of the check by means of continuous light and flashing light.
  4. The textile machine according to one or more of the preceding claims, wherein the signal units (4) have an LED indicator.
  5. A method for monitoring a textile machine having one workstation or a plurality of workstations (2), more particularly spinning positions, in which method, by means of a textile machine control unit,
    - different production figures of the individual workstations are captured,
    - at least one selectable production figure is checked for exceeding an assigned, specified limit value and
    - subsequently the result of the check is optically indicated via an indicating unit,
    wherein the indicating unit has a plurality of signal units (4), which are associated with the individual workstations (2) and are arranged at the respective workstations (2) and at which the result of the check of the production figure to be examined, of which at least one is selected, for exceeding the allocated, specified limit value is indicated by means of different light signals,
    wherein the textile machine has a service unit which can be moved along the workstations (2), for automatically detecting workstations (2) in need of maintenance and automatically performing maintenance work,
    wherein signal units (4) are arranged at the workstations (2) in such a way and the light signals are produced at said signal units (4) in such a way that said light signals are used by an optical detection device of the service unit for the automatic detection of workstations in need of maintenance and/or for alignment relative to the workstation (2).
  6. The method for monitoring according to claim 6, wherein the result of the check is indicated by means of light signals of different brightness and/or colour.
  7. The method for monitoring according to claim 6 or 7, wherein workstations (2) having identical product groups are indicated by means of the light signals.
  8. The method for monitoring according to one or more of the preceding claims 5 to 7, wherein the production figures to be checked are determined from a mean value of a plurality of production figures determined at selectable intervals over a selectable time period, in which case the mean value being, more particularly, an arithmetic, geometric or harmonic mean value or a mean value combined from at least two of these mean values.
EP20180135.4A 2019-06-19 2020-06-16 Textile machine with multiple work stations and method for monitoring a textile machine with multiple work stations Active EP3754064B1 (en)

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CN112111822A (en) 2020-12-22
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US20240102208A1 (en) 2024-03-28
MX2020006489A (en) 2020-12-21
PT3754064T (en) 2022-06-21
DE102019116627A1 (en) 2020-12-24
EP3754064A1 (en) 2020-12-23
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CN112111822B (en) 2023-07-18
US20200399794A1 (en) 2020-12-24

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