EP0426979A2 - Method and apparatus for ascertaining maintenance intervals on a spinning machine - Google Patents
Method and apparatus for ascertaining maintenance intervals on a spinning machine Download PDFInfo
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- EP0426979A2 EP0426979A2 EP90117735A EP90117735A EP0426979A2 EP 0426979 A2 EP0426979 A2 EP 0426979A2 EP 90117735 A EP90117735 A EP 90117735A EP 90117735 A EP90117735 A EP 90117735A EP 0426979 A2 EP0426979 A2 EP 0426979A2
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- work
- maintenance
- cycles
- signal
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/60—Details of processes or procedures
- B65H2557/65—Details of processes or procedures for diagnosing
- B65H2557/652—Details of processes or procedures for diagnosing need of maintenance
Definitions
- the invention relates to a method and a device for determining maintenance intervals on a spinning machine, which contains at least one work organ performing work cycles.
- the object of the invention is to create a method and a device of the type mentioned at the outset by which the determination of maintenance intervals is improved.
- This object is achieved in that a maintenance requirement is determined, for which purpose a number of work cycles is defined as a limit for at least one work organ, after which a maintenance operation is to be carried out, the work cycles of the at least one work organ are paid, and that after the work cycle has been reached A signal indicating the need for maintenance is set.
- the operating speeds of spinning machines depend heavily on the respective spinning parameters. For example, the spindle speeds of cotton ring spinning machines are often between 12,000 and 18,000 rpm, depending on the material, fineness, rotation, ring diameter, etc. If maintenance intervals were determined using an operating hours counter, this would result in, for example, after an operating time of 1,000 hours between 0.7 x 109 - at a spindle speed of 12,000 min ⁇ 1 - and 1.1 x 109 - at a spindle speed of 18 000 min ⁇ 1 - spindle revolutions can be achieved. In contrast, the invention determines a need for maintenance which is adapted to the actual load conditions due to the operating speeds.
- the predetermined number of work cycles of the work organ, according to which a maintenance operation is to be carried out is corrected taking into account the working speeds of the spinning machines and the duration of the respective presence of a working speed in such a way that the higher the working speed, the predetermined number of Working cycles are reduced and increased at low working speed.
- Higher operating speeds lead to a much greater load on the working elements of a spinning machine.
- the configuration makes it possible to weight high operating speeds by means of a corresponding correction in such a way that the shortening of the maintenance interval goes beyond the extent of a linear dependence between the maintenance interval and the operating speed difference.
- means are provided for detecting the number of work games carried out, which are connected to an evaluation device which contains a comparator for comparing the number of work games carried out with a predetermined limit value of work games and which is connected to a signal transmitter indicating a need for maintenance.
- the evaluation device is provided with means for detecting the speed with which the work cycles ran and run, and with means for forming a correction signal which is dependent on these speeds and the duration of the presence of the respective speed and with which the Work cycles of the work organ representative signal or the signal representing the predetermined limit value can be corrected.
- all movable elements reflecting the operating speed of a spinning machine are, for example ring spindles on ring spinning machines, stretching rollers on ring spinning machines or draw frames, wings or spindles on flyers, traversing thread guides on OE spinning machines, as well as ring banks on ring spinning machines, etc. see below.
- the working cycles are thus defined as the number of revolutions for rotating elements and as corresponding periods for elements with linear motion trajectories.
- a frequency generator (3) controls the individual motors (2), the frequency (f) applied to the individual motors (2) being permanently assigned to the speed (n spi ) of the ring spindle (4).
- the frequency (f) generated by the frequency generator (3) is thus a measure of the spindle speed (n spi ) and thus of the working speed of the entire ring spinning machine .
- a ring spinning machine is operated at different spinning speeds, which are then available over certain periods of time.
- the ring spindles run, for example, for a certain period of time (t1) with a low spindle speed (n spi1 ) of 12,000 min admir1 for a period (t2) with an average spindle speed (n spi2 ) of 15,000 min ⁇ 1 and for a third period (t3) with a high spindle speed (n spi3 ) of 18,000 min ⁇ 1.
- a maintenance interval is not simply determined via the operating time of the machine. Rather, the need for maintenance is determined, taking into account the operating conditions during the operating time.
- the spindle speeds (n spi1 , n spi2 , n spi3 ) correspond to frequencies (f1, f2, f3) of the frequency generator (3).
- the number of spindle revolutions results that the spindles have performed at the spindle speed (n spi ) during the time period (t).
- a monitoring device (1) of FIG. 1, which is shown enlarged in FIG. 2, has a computer (5), to which the spindle speeds (n spi ) or the corresponding frequencies (f) plus the respective time period (t) are applied. during which the frequencies (f) are present and available be tested.
- computer (5) the products are formed from spindle speeds (n spi ) and time period (t).
- these products are fed to a summator (6) into which they are added up.
- these products are fed to a computer (7) which is connected to a data input unit (11) and a data input unit (12).
- a limit value for a certain number of spindle revolutions is entered via the data input unit (12), at which a maintenance operation is to take place.
- This limit value is based on empirical values, with an average spindle speed being assumed, for example.
- Exponents (p) are entered via the data input unit (11) and correct the limit value entered by the data input unit (12) in the computer (7).
- the level of the exponents to be assigned to the limit value (p) is based on the level of the products supplied from the spindle speed and the time period. For example, a supplied product is assigned in computer (7) a specific exponent (p) which is linked to the limit value. The limit value is thus changed depending on the number and amount of the products supplied, the limit value also being assigned a high exponent for a high product.
- the computer (7) thus acts as a limit value generator, the corrected limit value in each case being fed to a comparator (8) in which it is compared with the summed up products of the sumnator (6). If the corrected limit value and the product sum of the summator (6) match, the signal generator (10) indicates that maintenance is required.
- the summator (6) also continues to add up if there is already a need for maintenance to indicate the extent to which the maintenance interval has been exceeded.
- the summator (6) is only deleted during the actual maintenance process.
- FIG. 3 shows a further embodiment of the monitoring unit (1), which is also connected to the frequency generator (3) of the individual motors (2) of the ring spinning machine.
- the frequency (f) is determined at certain periodic time intervals ( ⁇ t) detected. These time intervals ( ⁇ t) are calculated in minutes or hours.
- the feed frequency (f) is detected and linked in a computer (13) with an exponent (p) which determines the frequency (f) and multiplied by the time interval ( ⁇ t).
- the exponents (p) are entered via a data input unit (11 '), which is connected to the computer (13).
- each frequency is assigned a different exponent (p), the exponent (p) assuming values greater than 1 at higher and higher frequencies (f) and increasing with the frequency level.
- the computer (13) is connected to a summator (14) in which the load quanta ( ⁇ b) are added up.
- a data input unit (12 ') is connected to a comparator (8'), by means of which a predetermined limit value (B limit ), which specifies the number of spindle revolutions after which a maintenance operation is to be carried out, is entered.
- the limit value (B limit ) is compared with the load quanta added up in the summator (14) and, if there is a match on the signal generator (10'), maintenance requirements are displayed.
- B limit a predetermined limit value
- the signal generator (10 ') is then a display, on which the type and / or the location of the maintenance work is then specified, the need for which was determined.
- an exponent (p) was used to correct the maintenance intervals, which has led to an exponential dependency between maintenance intervals and working speed.
- Other mathematical relationships are also conceivable, through which mathematical functions between working speeds, working times and predetermined limit values are achieved.
- a proportional dependency is achieved.
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Bestimmen von Wartungsintervallen an einer Spinnereimaschine, die wenigstens ein Arbeitsspiele ausführendes Arbeitsorgan enthalt.The invention relates to a method and a device for determining maintenance intervals on a spinning machine, which contains at least one work organ performing work cycles.
Es ist notwendig, an Spinnereimaschinen in gewissen Intervallen Wartungstatigkeiten durchzuführen. Es ist bekannt, diese Intervalle anhand von Betriebsstundenzählern festzulegen, die auf eine feste Betriebsstundenzahl eingestellt werden.Bei Erreichen dieser Betriebsstundenzahl wird ein Signal abgegeben, um an die notwendig werdende Wartung zu erinnern.It is necessary to carry out maintenance work on spinning machines at certain intervals. It is known to determine these intervals on the basis of operating hours counters which are set to a fixed number of operating hours. When this number of operating hours is reached, a signal is emitted to remind of the maintenance that becomes necessary.
Die Erfindung hat sich die Aufgabe gestellt, ein Verfahren und eine Vorrichtung der eingangs genannten Art zu schaffen, durch die das Bestimmen von Wartungsintervallen verbessert wird.The object of the invention is to create a method and a device of the type mentioned at the outset by which the determination of maintenance intervals is improved.
Diese Aufgabe wird dadurch gelost, daß ein Wartungsbedarf ermittelt wird, wozu für wenigstens ein Arbeitsorgan eine Anzahl von Arbeitsspielen als Grenzwert festgelegt wird, nach dessen Erreichen ein Wartungsvorgang durchgeführt werden soll, daß die Arbeitsspiele des wenigstens einen Arbeitsorgans gezahlt werden, und daß nach Erreichen des Grenzwertes ein den wartungsbedarf angebendes Signal gesetzt wird.This object is achieved in that a maintenance requirement is determined, for which purpose a number of work cycles is defined as a limit for at least one work organ, after which a maintenance operation is to be carried out, the work cycles of the at least one work organ are paid, and that after the work cycle has been reached A signal indicating the need for maintenance is set.
Dadurch ist es möglich, den Wartungsbedarf einer Spinnereimaschine zu ermitteln und so ihren häufig sehr unterschiedlichen Betriebsgeschwindigkeiten Rechnung zu tragen. Die Betriebsgeschwindigkeiten von Spinnereimaschinen hängen stark von den jeweiligen Spinnparametern ab. So liegen beispielsweise die Spindeldrehzahlen von Baumwollringspinmaschinen je nach Material, Feinheit, Drehung, Ringdurchmesser usw. haufig zwischen 12 000 und 18 000 min⁻¹. Bei einem Bestimmen von Wartungsintervallen durch Betriebsstundenzähler würde dies dazu führen, daß beispielsweise nach einer Betriebszeit von 1 000 Stunden zwischen 0,7 x 10⁹ - bei einer Spindeldrehzahl von 12 000 min⁻¹ - und 1,1 x 10⁹ - bei einer Spindeldrehzahl von 18 000 min⁻¹ - Spindelumdrehungen erreicht werden. Durch die Erfindung wird dagegen ein Wartungsbedarf ermittelt, der an die tatsachlichen Belastungsverhältnisse durch die Betriebsgeschwindigkeiten angepaßt ist.This makes it possible to determine the maintenance requirement of a spinning machine and thus to take account of its often very different operating speeds. The operating speeds of spinning machines depend heavily on the respective spinning parameters. For example, the spindle speeds of cotton ring spinning machines are often between 12,000 and 18,000 rpm, depending on the material, fineness, rotation, ring diameter, etc. If maintenance intervals were determined using an operating hours counter, this would result in, for example, after an operating time of 1,000 hours between 0.7 x 10⁹ - at a spindle speed of 12,000 min⁻¹ - and 1.1 x 10⁹ - at a spindle speed of 18 000 min⁻¹ - spindle revolutions can be achieved. In contrast, the invention determines a need for maintenance which is adapted to the actual load conditions due to the operating speeds.
In Ausgestaltung der Erfindung ist vorgesehen, daß die vorgegebene Anzahl der Arbeitsspiele des Arbeitsorgans, nach welchen ein Wartungsvorgang durchgeführt werden soll, unter Berücksichtigung der Arbeitsgeschwindigkeiten der Spinnereimaschinen und der Zeitdauer des jeweiligen Vorhandenseins einer Arbeitsgeschwindigkeit derart korrigiert wird, daß bei hoherer Arbeitsgeschwindigkeit die vorgegebene Anzahl von Arbeitsspielen verringert und bei niedriger Arbeitsgeschwindigkeit erhoht wird. Höhere Betriebsgeschwindigkeiten führen zu einer wesentlich stärkeren Belastung der Arbeitsorgane einer Spinnereimaschine. Durch die Ausgestaltung ist es möglich, hohe Betriebsgeschwindigkeiten durch eine entsprechende Korrektur so zu gewichten, daß die Verkürzung des wartungsintervalls über das Maß einer linearen Abhängigkeit zwischen Wartungsintervall und Betriebsgeschwindigkeitsdifferenz hinausgeht.In an embodiment of the invention, it is provided that the predetermined number of work cycles of the work organ, according to which a maintenance operation is to be carried out, is corrected taking into account the working speeds of the spinning machines and the duration of the respective presence of a working speed in such a way that the higher the working speed, the predetermined number of Working cycles are reduced and increased at low working speed. Higher operating speeds lead to a much greater load on the working elements of a spinning machine. The configuration makes it possible to weight high operating speeds by means of a corresponding correction in such a way that the shortening of the maintenance interval goes beyond the extent of a linear dependence between the maintenance interval and the operating speed difference.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß der unterschiedliche Wartungsbedarf von mehreren Arbeitsorganen un terschiedlicher Funktionen getrennt ermittelt und getrennt signalisiert wird. Dadurch ist es möglich, verschiedene Arbeitsorgane entsprechend ihrer Belastung jeweils rechtzeitig zu warten.In a further embodiment of the invention it is provided that the different maintenance requirements of several working elements un different functions is determined separately and signaled separately. This makes it possible to maintain various work organs in good time, depending on their workload.
In weiterer Ausgestaltung sind Mittel zum Erfassen der Anzahl durchgeféhrter Arbeltsspiele vorgesehen, die an eine Auswerteeinrichtung angeschlossen sind, die einen Vergleicher zum Vergleichen der Anzahl durchgeführter Arbeitsspiele mit einem vorgegebenen Grenzwert von Arbeitsspielen enthält und die an einen einen Wartungsbedarf angebenden Signalgeber angeschlossen ist.In a further embodiment, means are provided for detecting the number of work games carried out, which are connected to an evaluation device which contains a comparator for comparing the number of work games carried out with a predetermined limit value of work games and which is connected to a signal transmitter indicating a need for maintenance.
In weiterer Ausgestaltung ist vorgesehen, daß die Auswerteeinrichtung mit Mitteln zum Erfassen der Geschwindigkeit, mit der die Arbeitsspiele abliefen und ablaufen, und mit Mitteln zum Bilden eines von diesen Geschwindigkeiten und der Zeitdauer des Vorhandenseins der jeweiligen Geschwindigkeit abhangigen Korrektursignals versehen ist, mit welchen das die Arbeitsspiele des Arbeitsorgans repräsentierende Signal oder das den vorgegebenen Grenzwert repräsentierende Signal korrigierbar ist. Dabei wird die Erkenntnis ausgenützt, daß hohe Geschwindigkeiten sowie die Zeitdauer, über die hohe Geschwindigkeiten eingehalten werden, eine wesentlich starkere Belastung der Arbeitsorgane hervorrufen als dies bei mittleren Geschwindigkeiten der Fall ist. entsprechendes gilt in umgekehrtem Sinn für niedrige Geschwindigkeiten. Durch diese Ausgestaltung gehen daher hohe Geschwindigkeiten unter Berücksichtigung der Zeitdauer, in der sie liefen oder laufen, aufgrund der Korrektur mit starker Gewichtung ein.Niedrige Geschwindigkeiten werden mit entsprechend schwacher Gewichtung bei der Ermittlung des Wartungsintervalls berücksichtigt.In a further embodiment it is provided that the evaluation device is provided with means for detecting the speed with which the work cycles ran and run, and with means for forming a correction signal which is dependent on these speeds and the duration of the presence of the respective speed and with which the Work cycles of the work organ representative signal or the signal representing the predetermined limit value can be corrected. The knowledge is exploited that high speeds and the length of time over which high speeds are maintained cause a much greater load on the work organs than is the case at medium speeds. the same applies in reverse for low speeds. With this configuration, high speeds are therefore taken into account, taking into account the length of time in which they ran or run, due to the correction with a strong weighting. Low speeds are taken into account with a correspondingly weak weighting when determining the maintenance interval.
Als Arbeitsorgane in Sinne der Erfindung sind alle die Betriebsgeschwindigkeit einer Spinnereimaschine wiedergebenden beweglichen Elemente, beispielsweise Ringspindeln an Ringspinn maschinen, Streckwalzen an Ringspinnmaschinen oder Strecken, Flügel oder Spindeln an Flyern, Changierfadenführer bei OE-Spinnmaschinen, sowie Ringbanke bei Ringspinnmaschinen usw. su verstehen. Die Arbeitsspiele sind damit bei rotierenden Elementen als Anzahl von Umdrehungen und bei Elementen mit geradlinigen Bewegungsbahnen als entsprechende Perioden definiert.As working elements in the sense of the invention, all movable elements reflecting the operating speed of a spinning machine are, for example ring spindles on ring spinning machines, stretching rollers on ring spinning machines or draw frames, wings or spindles on flyers, traversing thread guides on OE spinning machines, as well as ring banks on ring spinning machines, etc. see below. The working cycles are thus defined as the number of revolutions for rotating elements and as corresponding periods for elements with linear motion trajectories.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung von Ausführungsbeispielen, die in den Zeichnungen dargestellt sind.
- Fig. 1 zeigt eine Ausführung der Erfindung zum Ermitteln des Wartungsbedarfs an einer Ringspinnmaschine, deren Ringspindeln mit Einzelantriebsmotoren versehen sind,
- Fig. 2. eine Blockschaltung einer ersten Ausführungsform einer Einrichtung zum Ermitteln des Wartungsbedarfs nach Fig. 1 und
- Fig. 3 eine weitere Blockschaltung ähnlich Fig. 2, bei der direkt die jeweils erfaßten Ringspindeldrehzahlwerte zuzüglich ihrer Betriebsdauer mit Hilfe eines Exponenten korrigiert werden.
- 1 shows an embodiment of the invention for determining the maintenance requirement on a ring spinning machine, the ring spindles of which are provided with individual drive motors,
- 2 shows a block circuit of a first embodiment of a device for determining the maintenance requirement according to FIGS. 1 and
- 3 shows a further block circuit similar to FIG. 2, in which the ring spindle speed values recorded in each case plus their operating time are corrected directly with the aid of an exponent.
An Spinnereimaschinen müssen zum Aufrechterhalten der Funktion Wartungen durchgeführt werden. Im folgenden ist dies anhand des Beispiels einer Ringspinnmaschine erlautert.An Ringspinnmaschinen muß beispielsweise wiederholt Öl an Ringspindeln und Öl von im Ölbad laufenden Getrieben gewechselt werden, Lager müssen geschniert werden, die gegenseitige Justierung von Ringen und Spindeln muß überpruft werden usw.. Solche Wartungsarbeiten sind Voraussetzung für einen einwandfreien Lauf einer Ringspinnnaschine und für eine hohe Lebensdauer der Maschinenteile.Maintenance work must be carried out on spinning machines to maintain their function. This is explained below using the example of a ring spinning machine. On ring spinning machines, for example, oil on ring spindles and oil from gearboxes running in an oil bath must be changed repeatedly, bearings must be greased, the mutual adjustment of rings and spindles must be checked, etc. Such maintenance work must be carried out A prerequisite for the smooth running of a ring spinning machine and for a long service life of the machine parts.
Im nachstehenden wird erlautert, wie der Wartungsbedarf von Ringspindeln (4) einer Ringspinnnaschine ermittelt wird, die durch Einzelmotoren (2) angetrieben sind. Diese Einzelmotoren (2) sind frequenzgesteuert.In the following it is explained how the maintenance requirement of ring spindles (4) of a ring spinning machine is determined are driven by individual motors (2). These single motors (2) are frequency controlled.
Ein Frequenzgenerator (3) steuert die Einzelmotoren (2), wobei die jeweils an den Einzelmotoren (2) anliegende Frequenz (f) der Drehsahl (nspi) der Ringspindel (4) fest zugeordnet ist. Die von Frequenzgenerator (3) erzeugte Frequenz (f) ist somit ein Maß für die Spindeldrehzahl (nspi) und damit für die Arbeitsgeschwindigkeit der gesamten Ringspinnmaschine.A frequency generator (3) controls the individual motors (2), the frequency (f) applied to the individual motors (2) being permanently assigned to the speed (n spi ) of the ring spindle (4). The frequency (f) generated by the frequency generator (3) is thus a measure of the spindle speed (n spi ) and thus of the working speed of the entire ring spinning machine .
Eine Ringspinnmaschine wird je nach Material und anderen Spinnparametern mit unterschiedlichen Spinngeschwindigkeiten gefahren, die dann jeweils über bestimmte Zeitdauern vorliegen. Die Ringspindeln laufen beispielsweise für eine bestimmte Zeitdauer (t₁) mit einer niedrigen Spindeldrehzahl (nspi1) von 12 000 min⁻¹ während einer Zeitdauer (t₂) mit einer mittleren Spindeldrehzahl (nspi2) von 15 000 min⁻¹ und während einer dritten Zeitdauer (t₃) mit einer hohen Spindeldrehzahl (nspi3) von 18 000 min⁻¹. Um diesen unterschiedlichen Betriebsbedingungen Rechnung zu tragen, wird ein Wartungsintervall nicht einfach über die Betriebszeit der Maschine festgelegt. Es wird vielmehr der Wartungsbedarf ermittelt, wobei die Betriebsbedingungen während der Betriebszeit berücksichtigt werden.Depending on the material and other spinning parameters, a ring spinning machine is operated at different spinning speeds, which are then available over certain periods of time. The ring spindles run, for example, for a certain period of time (t₁) with a low spindle speed (n spi1 ) of 12,000 min während¹ for a period (t₂) with an average spindle speed (n spi2 ) of 15,000 min⁻¹ and for a third period (t₃) with a high spindle speed (n spi3 ) of 18,000 min⁻¹. In order to take these different operating conditions into account, a maintenance interval is not simply determined via the operating time of the machine. Rather, the need for maintenance is determined, taking into account the operating conditions during the operating time.
Die Spindeldrehzahlen (nspi1, nspi2, nspi3) entsprechen Frequenzen (f₁, f₂, f₃) des Frequenzgenerators (3). Durch das Bilden der Produkte aus den verschiedenen Spindeldrehzahlen und zugehörigen Zeitdauern, beispielsweise (nspi1 x t₁), ergibt sich die Anzahl der Spindelumdrehungen, die die Spindeln bei der Spindeldrehzahl (nspi) wahrend der Zeitdauer (t) durchgeführt haben.The spindle speeds (n spi1 , n spi2 , n spi3 ) correspond to frequencies (f₁, f₂, f₃) of the frequency generator (3). By forming the products from the various spindle speeds and associated time periods, for example (n spi1 x t₁), the number of spindle revolutions results that the spindles have performed at the spindle speed (n spi ) during the time period (t).
Eine Überwachungseinrichtung (1) der Fig. 1, die in Fig. 2 vergrößert dargestellt ist, besitzt einen Rechner (5), dem die jeweils anliegenden Spindeldrehzahlen (nspi) bzw.die entsprechenden Frequenzen (f) zuzüglich der jeweiligen Zeitdauer (t), während denen die Frequenzen (f) vorliegen und vorlagen, zugelei tet werden. In Rechner (5) werden die Produkte aus Spindeldrehsahlen (nspi) und Zeitdauer (t) gebildet. Diese Produkte werden zum einen einen Summator (6) zugeführt, in den sie aufsummiert werden. Zum anderen werden diese Produkte einen Rechner (7) zugeführt, der mit einer Dateneingabeeinheit (11) und einer Dateneingabeeinheit (12) verbunden ist. Über die Dateneingabeeinheit (12) wird ein Grenzwert für eine bestimmte Anzahl von Spindelumdrehungen eingegeben, bei der ein Wartungsvorgang erfolgen soil. Dieser Grenzwert lehnt sich an Erfahrungswerte an, wobei beispielsweise von einer mittleren Spindeldrehzahl ausgegangen wird. Über die Dateneingabeeinheit (11) werden Exponenten (p) eingegeben, die den durch die Dateneingabeeinheit (12) eingegebenen Grenzwert in Rechner (7) korrigieren. Die Höhe der den Grenzwert zuzuordnenden Exponenten (p) bemißt sich nach der Höhe der zugefuhrten Produkte aus Spindeldrehzahl und Zeitdauer. So wird beispielsweise einen zugeführten Produkt in Rechner (7) ein bestimmter Exponent (p) zugeordnet, der mit den Grenzwert verknüpft wird. Der Grenzwert wird damit je nach Zahl und Höhe der zugeführten Produkte verändert, wobei den Grenzwert bei einen hohen Produkt auch ein hoher Exponent zugeordnet wird. Der Rechner (7) wirkt somit als Grenzwertbildner, wobei der jeweils korrigierte Grenzwert einen Vergleicher (8) zugeführt wird, in dem er mit den aufsummierten Produkten des Sumnators (6) verglichen wird. Stimmen korrigierter Grenzwert und Produktsumme des Summators (6) überein, wird über den Signalgeber (10) Wartungsbedarf angezeigt.A monitoring device (1) of FIG. 1, which is shown enlarged in FIG. 2, has a computer (5), to which the spindle speeds (n spi ) or the corresponding frequencies (f) plus the respective time period (t) are applied. during which the frequencies (f) are present and available be tested. In computer (5) the products are formed from spindle speeds (n spi ) and time period (t). On the one hand, these products are fed to a summator (6) into which they are added up. On the other hand, these products are fed to a computer (7) which is connected to a data input unit (11) and a data input unit (12). A limit value for a certain number of spindle revolutions is entered via the data input unit (12), at which a maintenance operation is to take place. This limit value is based on empirical values, with an average spindle speed being assumed, for example. Exponents (p) are entered via the data input unit (11) and correct the limit value entered by the data input unit (12) in the computer (7). The level of the exponents to be assigned to the limit value (p) is based on the level of the products supplied from the spindle speed and the time period. For example, a supplied product is assigned in computer (7) a specific exponent (p) which is linked to the limit value. The limit value is thus changed depending on the number and amount of the products supplied, the limit value also being assigned a high exponent for a high product. The computer (7) thus acts as a limit value generator, the corrected limit value in each case being fed to a comparator (8) in which it is compared with the summed up products of the sumnator (6). If the corrected limit value and the product sum of the summator (6) match, the signal generator (10) indicates that maintenance is required.
Der Summator (6) summiert auch weiter auf, wenn bereits Wartungsbedarf angeseigt ist, um die Höhe der Überschreitung des Wartungsintervalls anzuzeigen. Gelöscht wird der Summator (6) erst bein tatsächlichen Wartungsvorgang.The summator (6) also continues to add up if there is already a need for maintenance to indicate the extent to which the maintenance interval has been exceeded. The summator (6) is only deleted during the actual maintenance process.
Fig. 3 zeigt eine weitere Ausführungsform der Überwachungseinheit (1), die ebenfalls an den Frequenzgenerator (3) der Einzelmotoren (2) der Ringspinnmaschine angeschlossen ist.Die Frequenz (f) wird in bestimmten periodischen Zeitintervallen (Δt) erfaßt. Diese Zeitintervalle (Δt) berechnen sich nach Minuten oder Stunden. Nach jeden Zeitintervall (Δt) wird also die Speisefrequenz (f) erfaßt und in einem Rechner (13) mit einem entsprechend der Höhe der Frequenz (f) ermittelnden Exponenten (p) verknüpft und mit dem Zeitintervall (Δt) multipliziert. Die Exponenten (p) werden über eine Dateneingabeeinheit (11′) eingegeben,die an den Rechner (13) angeschlossen ist.Durch die Verknüpfung jeder Frequenz (f) mit einem ermittelten Exponenten (p) und die Multiplikation mit dem Zeitintervall (Δt) werden Belastungsquanten (Δ) gebildet. Entsprechend der Höhe der Frequenzen wird jeder Frequenz ein anderer Exponent (p) zugeordnet, wobei der Exponent (p) bei höheren und hohen Frequenzen (f) Werte großer als 1 annimmt und mit der Frequenzhöhe ansteigt. Der Rechner (13) ist an einen Summator (14) angeschlossen, in dem die Belastungsquanten (Δb) aufsummiert werden. An einen Vergleicher (8′) ist eine Dateneingabeeinheit (12′) angeschlossen, durch die ein vorgegebener Grenzwert (BGrenz), der die Anzahl von Spindelumdrehungen vorgibt, nach denen ein Wartungsvorgang erfolgen soll, eingegeben ist. Im Vergleicher (8′) wird der Grenzwert (BGrenz), mit den im Summator (14) aufsummierten Belastungsquanten verglichen und bei Übereinstimmung an Signalgeber (10′) Wartungsbedarf angezeigt. Auch hier wird sowohl weiter aufsummiert, solange der Grenzwert noch nicht erreicht ist, als auch, solange zwar Wartungsbedarf angezeigt ist, jedoch noch keine Wartung erfolgt ist.3 shows a further embodiment of the monitoring unit (1), which is also connected to the frequency generator (3) of the individual motors (2) of the ring spinning machine. The frequency (f) is determined at certain periodic time intervals (Δt) detected. These time intervals (Δt) are calculated in minutes or hours. After each time interval (Δt), the feed frequency (f) is detected and linked in a computer (13) with an exponent (p) which determines the frequency (f) and multiplied by the time interval (Δt). The exponents (p) are entered via a data input unit (11 '), which is connected to the computer (13). By linking each frequency (f) with a determined exponent (p) and multiplying by the time interval (Δt) Load quanta (Δ) formed. According to the level of the frequencies, each frequency is assigned a different exponent (p), the exponent (p) assuming values greater than 1 at higher and higher frequencies (f) and increasing with the frequency level. The computer (13) is connected to a summator (14) in which the load quanta (Δb) are added up. A data input unit (12 ') is connected to a comparator (8'), by means of which a predetermined limit value (B limit ), which specifies the number of spindle revolutions after which a maintenance operation is to be carried out, is entered. In the comparator (8 ') the limit value (B limit ) is compared with the load quanta added up in the summator (14) and, if there is a match on the signal generator (10'), maintenance requirements are displayed. Here, too, totaling continues as long as the limit value has not yet been reached and as long as maintenance is indicated but no maintenance has yet been carried out.
Selstverständlich können auch andere Arbeitsorgane von Ringspinnmaschinen oder anderen Textilmaschinen für die Ermittlung des Wartungsbedarfs gemäß der Erfindung herangezogen werden. Es ist auch moglich, für verschiedene Wartungstätigkeiten unterschiedliche Wartungsintervalle anzusetzen und diese anhand verschiedener Arbeitsorgane getrennt zu überwachen. Der Signalgeber (10′) ist dann ein Display, an welchen dann auch die Art und/oder der Ort der Wartungsarbeit angegeben wird, deren Bedarf ermittelt wurde.Of course, other working elements of ring spinning machines or other textile machines can also be used to determine the maintenance requirement according to the invention. It is also possible to set different maintenance intervals for different maintenance activities and to monitor them separately using different work organs. The signal generator (10 ') is then a display, on which the type and / or the location of the maintenance work is then specified, the need for which was determined.
Bei den beschriebenen Ausführungsbeispielen wurde sur Korrektur der Wartungsintervalle ein Exponent (p) verwendet, der zu einer exponentiellen Abhängigkeit zwischen Wartungsintervallen und Arbeitsgeschwindigkeit geführt hat. Es sind auch andere rechnerische Beziehungen denkbar, durch die mathematische Funktionen zwischen Arbeitsgeschwindigkeiten, Arbeitsdauern und vorgegebenen Grenzwerten erreicht werden. Durch die Verwendung eines Faktors anstelle eines Exponenten wird beispielsweise eine proportionale Abhängigkeit erreicht.In the described exemplary embodiments, an exponent (p) was used to correct the maintenance intervals, which has led to an exponential dependency between maintenance intervals and working speed. Other mathematical relationships are also conceivable, through which mathematical functions between working speeds, working times and predetermined limit values are achieved. By using a factor instead of an exponent, for example, a proportional dependency is achieved.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3937439 | 1989-11-10 | ||
DE19893937439 DE3937439A1 (en) | 1989-11-10 | 1989-11-10 | METHOD AND DEVICE FOR DETERMINING MAINTENANCE INTERVALS ON A SPINNING MACHINE |
Publications (2)
Publication Number | Publication Date |
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EP0426979A2 true EP0426979A2 (en) | 1991-05-15 |
EP0426979A3 EP0426979A3 (en) | 1991-10-23 |
Family
ID=6393265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900117735 Withdrawn EP0426979A3 (en) | 1989-11-10 | 1990-09-14 | Method and apparatus for ascertaining maintenance intervals on a spinning machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0426979A3 (en) |
JP (1) | JPH03174035A (en) |
DE (1) | DE3937439A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515266A (en) * | 1992-01-12 | 1996-05-07 | Meyer; Urs | Textile spinning machine management system |
EP0759485A2 (en) * | 1995-08-11 | 1997-02-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Consumable part managing method and system for textile machinery |
EP1106557A2 (en) * | 1999-12-09 | 2001-06-13 | Barmag AG | Bobbin winding machine and method for controlling the winding machine |
EP1186980A1 (en) * | 2000-04-07 | 2002-03-13 | Sintokogio, Ltd. | Method for supporting maintenance of facility and system |
EP3521224A1 (en) * | 2018-02-02 | 2019-08-07 | Murata Machinery, Ltd. | Yarn winding machine and method of operating yarn winding machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180184A (en) * | 1990-11-15 | 1992-06-26 | Murata Mach Ltd | Data base constituting method and portable terminal equipment used therefor |
DE4117953A1 (en) * | 1991-05-31 | 1992-12-03 | Rieter Ag Maschf | METHODS FOR MONITORING AND EXCHANGING OR REPLACING RUNNERS ON SPINNING RINGS FROM SPINNING SITES IN A RING SPIDER |
DE4131247B4 (en) * | 1991-09-20 | 2009-04-02 | Maschinenfabrik Rieter Ag | Method and apparatus for supporting maintenance |
CH686378A5 (en) * | 1992-10-12 | 1996-03-15 | Rieter Ag Maschf | Machine Management System. |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026111A1 (en) * | 1979-09-24 | 1981-04-01 | Parks Cramer Company | Method and apparatus for facilitating maintenance of spinning machine information system |
GB2127554A (en) * | 1982-09-18 | 1984-04-11 | Porsche Ag | Determination of the time or distance for motor vehicle servicing |
EP0156153A1 (en) * | 1984-03-22 | 1985-10-02 | Maschinenfabrik Rieter Ag | Yarn quality monitoring system |
EP0191458A1 (en) * | 1985-02-12 | 1986-08-20 | Nissan Motor Co., Ltd. | Oil degradation warning system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH555422A (en) * | 1973-02-20 | 1974-10-31 | Heberlein Hispano Sa | METHOD AND DEVICE FOR CONTROLLING SPINNING MACHINES. |
DE3717749A1 (en) * | 1987-05-26 | 1988-12-15 | Zubler Geraetebau | Method for the active prevention of thread breaks on spinning-machine, twisting-machine and winding-machine drives and for their fully automatic setting to maximum production/regulating out speeds |
-
1989
- 1989-11-10 DE DE19893937439 patent/DE3937439A1/en not_active Withdrawn
-
1990
- 1990-09-14 EP EP19900117735 patent/EP0426979A3/en not_active Withdrawn
- 1990-11-07 JP JP29999590A patent/JPH03174035A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026111A1 (en) * | 1979-09-24 | 1981-04-01 | Parks Cramer Company | Method and apparatus for facilitating maintenance of spinning machine information system |
GB2127554A (en) * | 1982-09-18 | 1984-04-11 | Porsche Ag | Determination of the time or distance for motor vehicle servicing |
EP0156153A1 (en) * | 1984-03-22 | 1985-10-02 | Maschinenfabrik Rieter Ag | Yarn quality monitoring system |
EP0191458A1 (en) * | 1985-02-12 | 1986-08-20 | Nissan Motor Co., Ltd. | Oil degradation warning system |
Non-Patent Citations (1)
Title |
---|
RESEARCH DISCLOSURE. Vol. 313, No. 124, Mai 1990, HAVANT GB,: 'Transmission Oil Life Diagnostic ' * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515266A (en) * | 1992-01-12 | 1996-05-07 | Meyer; Urs | Textile spinning machine management system |
EP0759485A2 (en) * | 1995-08-11 | 1997-02-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Consumable part managing method and system for textile machinery |
EP0759485A3 (en) * | 1995-08-11 | 1998-12-30 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Consumable part managing method and system for textile machinery |
EP1106557A2 (en) * | 1999-12-09 | 2001-06-13 | Barmag AG | Bobbin winding machine and method for controlling the winding machine |
EP1106557A3 (en) * | 1999-12-09 | 2002-09-18 | Barmag AG | Bobbin winding machine and method for controlling the winding machine |
US6513749B1 (en) | 1999-12-09 | 2003-02-04 | Barmag Ag | Yarn winding machine and method |
EP1186980A1 (en) * | 2000-04-07 | 2002-03-13 | Sintokogio, Ltd. | Method for supporting maintenance of facility and system |
EP1186980A4 (en) * | 2000-04-07 | 2004-07-21 | Sintokogio Ltd | Method for supporting maintenance of facility and system |
EP3521224A1 (en) * | 2018-02-02 | 2019-08-07 | Murata Machinery, Ltd. | Yarn winding machine and method of operating yarn winding machine |
Also Published As
Publication number | Publication date |
---|---|
DE3937439A1 (en) | 1991-05-16 |
EP0426979A3 (en) | 1991-10-23 |
JPH03174035A (en) | 1991-07-29 |
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