EP0282742A1 - Method and apparatus for the on-line production and quality control in textile machines - Google Patents

Method and apparatus for the on-line production and quality control in textile machines Download PDF

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Publication number
EP0282742A1
EP0282742A1 EP88102161A EP88102161A EP0282742A1 EP 0282742 A1 EP0282742 A1 EP 0282742A1 EP 88102161 A EP88102161 A EP 88102161A EP 88102161 A EP88102161 A EP 88102161A EP 0282742 A1 EP0282742 A1 EP 0282742A1
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EP
European Patent Office
Prior art keywords
thread
diameter
shading
light receiver
balloon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP88102161A
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German (de)
French (fr)
Inventor
Ernst Felix
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Zellweger Uster AG
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Zellweger Uster AG
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Publication date
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Publication of EP0282742A1 publication Critical patent/EP0282742A1/en
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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
    • 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
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1633—Electronic actuators
    • D01H13/165—Photo-electric sensing means
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular

Definitions

  • the present invention is in the field of production and quality monitoring on textile machines by determining the diameter and / or the presence or absence of a thread. Since threads are produced at a large number of production sites in the textile industry, the term "thread” is intended to encompass all types of yarns, twists, filaments and the like in the following.
  • Such monitoring is carried out, for example, on winding machines with so-called yarn cleaners, the thread being guided in the measuring gap of a sensor and its diameter being continuously monitored. If one also wanted to carry out this monitoring on ring spinning machines, then there are considerable costs due to the large number of sensors required, which among other things are due to the fact that the guarantee of the zero point stability for sensors in whose measuring gap the thread is constantly guided is not insignificant.
  • bobbins are examined in a suitably equipped laboratory. The most important parameters of the examination are the fineness of the thread and the unevenness of its cross-section.
  • This sampling control has several disadvantages. Firstly, it is not a full control; secondly, there is a considerable time lag between taking samples and testing in the laboratory and reporting the results to the operating area. Another disadvantage is the loss of the sample material, which usually only forms waste. In the case of expensive threads in particular, these waste costs can reach considerable values.
  • the invention relates to a method for on-line production and quality monitoring on textile machines by determining the diameter of a thread moving transversely to its longitudinal direction due to the formation of a thread balloon.
  • the method according to the invention is characterized in that at least one beam of rays directed from a light source onto a light receiver is placed in the thread path at the location of the transverse thread and traverses it, whereby the intensity of the beam bundle is weakened intermittently, the duration and / / or degree is used as a measure of the thread diameter.
  • the invention is based on the knowledge that when monitored at a location where the thread makes a transverse movement, the problem of the zero point stability no longer exists because the thread periodically traverses and exits the beam, which enables the zero point to be easily established.
  • the sensor can be constructed so simply that the costs of a large number of sensors remain within a reasonable range.
  • the method according to the invention also makes it possible to determine the presence or absence of a thread, in that an incomplete weakening of the intensity of the radiation beam at the appropriate point in time as a result of a thread not present (thread of zero diameter) indicates a thread break or a production stoppage.
  • the invention further relates to a device for carrying out the method according to the invention with a light source for emitting a beam and a light receiver for this sensor for determining the diameter of a thread.
  • the device according to the invention is characterized in that the sensor is arranged at a point at which the beam crosses the path of the thread during its transverse movement, and that means for measuring the degree and / or the duration of the passage of the thread through the beam shadowing resulting from the light receiver are provided.
  • a thread F coming from a drafting device runs in the direction of arrow P through a thread eyelet 1, the so-called “swab tail", and via a rotor 3 rotating on a ring 2 to a cop 4.
  • the rotor 3 divides the thread F into known manner with its rotation and winds it up on the cop 4.
  • a thread balloon is formed between the thread eyelet 1 and the rotor 3 as a result of the centrifugal force of the rotating thread F.
  • the base of the balloon forms a circle 7, the path of movement of the portion of the thread F lying in the level of the beam S and thus intersecting this is formed by a circle designated by 8 in FIG. 3.
  • the receiver 6 As long as the rotating thread F does not intersect the beam S, the receiver 6 is fully exposed to the beam S and delivers a corresponding constant output signal. Each crossing of the beam S through the rotating thread F leads to a corresponding shading of the beam S striking the receiver 6 and thus to a characteristic change in the output signal of the receiver 6. The degree or intensity of this shading is at a constant rotational speed of the thread F, a measure of its diameter.
  • the signal curve at the receiver 6 is shown schematically in FIG. 4, the time t being entered on the abscissa and the degree of shading A being shown on the ordinate. According to the illustration, at times t1 and t2, when the thread F intersects the beam S, a clear shading is registered in the receiver 6, which is symbolized by a shading pulse I1 or I2. T denotes the duration of a full revolution of the thread F.
  • FIGS. 5 and 6 show a variant with the sensor as close as possible to the base of the balloon. This increases the reliability and accuracy of the measurement because there are more stable conditions at the base of the balloon with respect to the distance of the thread F from the transmitter 5 or from the receiver 6 than in the region of the balloon tip.
  • the scanning intervals are also approximately one millimeter. This resolution is completely sufficient for determining the thread count and / or the thread unevenness; Conventional uniformity testers have a measuring length of 8 to 10 millimeters, for example.
  • the described method and the associated device have two main areas of application, on the one hand quality and on the other hand production monitoring.
  • the production monitoring can take place because the shading pulses I1, I2 (FIG. 4) and their number represent a measure of the production; when production stops, no shading impulses are registered.
  • operating data such as efficiency (using the shading impulses per operating hour) and length produced (using the total number of shading impulses) and the production speed can be determined therefrom in a known manner.
  • the device can also be used as a thread monitor. This is easily possible because the frequency of the shading pulses is known when the machine 3 is running and the rotor 3 is rotating at a given speed.

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

Abstract

The diameter is determined of a yarn (F) which, owing to the formation of a yarn balloon, moves transversely to its longitudinal direction and which in the course of its transverse movement passes through a beam of light (S) passing between a light source (5) and a light detector (6). In the course of this passage through the light beam, the light detector (6) is shadowed to a degree which corresponds to the particular yarn thickness. The magnitude and/or duration of this shadowing is evaluated as a signal which measures the yarn diameter and is judged according to known criteria in respect of yarn fineness, yarn uniformity and other criteria derived therefrom. <IMAGE>

Description

Die vorliegende Erfindung liegt auf dem Gebiet der Produktions- ­und Qualitätsüberwachung an Textilmaschinen durch Bestimmung des Durchmessers und/ oder des Vorhanden- oder Nichtvorhandenseins eines Fadens. Da in der Textilindustrie Fäden an einer Vielzahl von Produktionsstellen erzeugt werden, soll im folgenden der Begriff "Faden" alle Arten von Garnen, Zwirnen, Filamenten und dergleichen umfassen.The present invention is in the field of production and quality monitoring on textile machines by determining the diameter and / or the presence or absence of a thread. Since threads are produced at a large number of production sites in the textile industry, the term "thread" is intended to encompass all types of yarns, twists, filaments and the like in the following.

Derartige Ueberwachungen werden beispielsweise an Spulmaschinen mit sogenannten Garnreinigern On-line durchgeführt, wobei der Faden im Messspalt eines Sensors geführt ist und laufend auf seinen Durchmesser überwacht wird. Wenn man diese Ueberwachung auch an Ringspinnmaschinen vornehmen wollte, dann entstehen wegen der grossen Anzahl der benötigten Sensoren erhebliche Kosten, welche unter anderem dadurch bedingt sind, dass die Gewährleistung der Nullpunktsstabilität bei Sensoren, in deren Messspalt der Faden ständig geführt ist, nicht unbeträchtlich ist.Such monitoring is carried out, for example, on winding machines with so-called yarn cleaners, the thread being guided in the measuring gap of a sensor and its diameter being continuously monitored. If one also wanted to carry out this monitoring on ring spinning machines, then there are considerable costs due to the large number of sensors required, which among other things are due to the fact that the guarantee of the zero point stability for sensors in whose measuring gap the thread is constantly guided is not insignificant.

Aus diesem Grund beschränkt sich die Produktions- und Qualitätsüberwachung in der Regel auf Stichproben. Dabei werden eine oder mehrere Bobinen (Spulen) in einem entsprechend ausgerüsteten Labor untersucht. Die wichtigsten Parameter der Untersuchung sind dabei die Feinheit des Fadens und die Ungleichmässigkeit seines Querschnitts.For this reason, production and quality monitoring is usually limited to random samples. One or more bobbins (coils) are examined in a suitably equipped laboratory. The most important parameters of the examination are the fineness of the thread and the unevenness of its cross-section.

Diese Stichprobenkontrolle hat aber verschiedene Nachteile. Zum ersten ist sie keine Vollkontrolle, zweitens ergibt sich eine erhebliche Zeitverzögerung zwischen Probenentnahme und Prüfung im Labor sowie der Berichterstattung der Resultate an den Betriebsbereich. Als weiterer Nachteil ist der Verlust des Stichprobenmaterials zu nennen, das in der Regel nur noch Abfall bildet. Insbesondere bei teuren Fäden können diese Abfallkosten beträchtliche Werte erreichen.This sampling control has several disadvantages. Firstly, it is not a full control; secondly, there is a considerable time lag between taking samples and testing in the laboratory and reporting the results to the operating area. Another disadvantage is the loss of the sample material, which usually only forms waste. In the case of expensive threads in particular, these waste costs can reach considerable values.

Durch die Erfindung sollen nun ein Verfahren und eine Vorrichtung zur Produktions- und Qualitätsüberwachung an Textilmaschinen angegeben werden, welche eine On-line Ueberwachung ermöglichen und dadurch die aufgezählten Nachteile der Stichprobenkontrolle nicht aufweisen, wobei die Kosten für diese On-line Ueberwachung jedoch in einem vertretbaren Rahmen liegen sollen.By means of the invention, a method and a device for production and quality monitoring on textile machines are now to be specified which enable online monitoring and thus do not have the disadvantages of sampling control enumerated, although the costs for this online monitoring are reasonable Frame should be.

Die Erfindung betrifft ein Verfahren zur On-line Produktions- und Qualitätsüberwachung an Textilmaschinen durch Bestimmung des Durchmessers eines sich aufgrund der Bildung eines Fadenballons quer zu seiner Längsrichtung bewegenden Fadens.The invention relates to a method for on-line production and quality monitoring on textile machines by determining the diameter of a thread moving transversely to its longitudinal direction due to the formation of a thread balloon.

Das erfindungsgemässe Verfahren ist dadurch gekennzeichnet, dass mindestens ein von einer Lichtquelle auf einen Lichtempfänger gerichtetes Strahlenbündel am Ort des querbewegten Fadens in den Fadenlauf gelegt wird und diesen durchquert, wobei durch den querbewegten Faden eine intermittierende Abschwächung der Intensität des Strahlenbündels erfolgt, deren Dauer und/oder Grad als Mass für den Fadendurchmesser verwendet wird.The method according to the invention is characterized in that at least one beam of rays directed from a light source onto a light receiver is placed in the thread path at the location of the transverse thread and traverses it, whereby the intensity of the beam bundle is weakened intermittently, the duration and / / or degree is used as a measure of the thread diameter.

Die Erfindung geht von der Erkenntnis aus, dass bei Ueberwachung an einem Ort, wo der Faden eine Querbewegung vollführt, das Problem der Nullpunktsstabilität nicht weiter besteht, weil der Faden das Strahlenbündel periodisch durchquert und wieder verlässt, was eine einfache Festlegung des Nullpunkts ermöglicht. Dadurch kann der Sensor so einfach aufgebaut sein, dass die Kosten auch einer grossen Anzahl von Sensoren in einem vertretbaren Rahmen bleiben. Selbstverständlich ermöglicht das erfindungsgemässe Verfahren auch die Bestimmung des Vorhanden- oder Nichtvorhandenseins eines Fadens, indem nämlich eine nicht erfolgende Abschwächung der Intensität des Strahlenbündels zum entsprechenden Zeitpunkt infolge eines nicht vorhandenen Fadens (Faden vom Durchmesser Null) einen Fadenbruch oder einen Produktionsstillstand anzeigt.The invention is based on the knowledge that when monitored at a location where the thread makes a transverse movement, the problem of the zero point stability no longer exists because the thread periodically traverses and exits the beam, which enables the zero point to be easily established. As a result, the sensor can be constructed so simply that the costs of a large number of sensors remain within a reasonable range. Of course, the method according to the invention also makes it possible to determine the presence or absence of a thread, in that an incomplete weakening of the intensity of the radiation beam at the appropriate point in time as a result of a thread not present (thread of zero diameter) indicates a thread break or a production stoppage.

Die Erfindung betrifft weiter eine Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens mit einem eine Lichtquelle zur Aussendung eines Strahlenbündels und einen Lichtempfänger für dieses aufweisenden Sensor zur Bestimmung des Durchmessers eines Fadens.The invention further relates to a device for carrying out the method according to the invention with a light source for emitting a beam and a light receiver for this sensor for determining the diameter of a thread.

Die erfindungsgemässe Vorrichtung ist dadurch gekennzeichnet, dass der Sensor an einer Stelle angeordnet ist, an welcher das Strahlenbündel die Bahn des Fadens bei dessen Querbewegung kreuzt, und dass Mittel zur Messung des Grades und/oder der Dauer der sich beim Durchgang des Fadens durch das Strahlenbündel am Lichtempfänger ergebenden Abschattung vorgesehen sind.The device according to the invention is characterized in that the sensor is arranged at a point at which the beam crosses the path of the thread during its transverse movement, and that means for measuring the degree and / or the duration of the passage of the thread through the beam shadowing resulting from the light receiver are provided.

Nachstehend wird die Erfindung anhand von Ausführungsbeispielen und der Zeichnungen näher erläutert; es zeigen:

  • Fig. 1 eine Vorderansicht einer Spinnstelle mit Ballonbildung,
  • Fig. 2 eine Seitenansicht der Spinnstelle von Fig. 1 von links,
  • Fig. 3 eine Draufsicht auf den Fadenballon der Spinnstelle von Fig. 1,
  • Fig. 4 ein Diagramm zur Funktionserläuterung,
  • Fig. 5 eine Vorderansicht einer Variante der Anordnung von Fig. 1; und
  • Fig. 6 eine Draufsicht auf den Fadenballon der Anordnung von Fig. 5.
The invention is explained in more detail below on the basis of exemplary embodiments and the drawings; show it:
  • 1 is a front view of a spinning station with balloon formation,
  • 2 is a side view of the spinning station of FIG. 1 from the left,
  • 3 is a plan view of the thread balloon of the spinning station of FIG. 1,
  • 4 shows a diagram for the explanation of the function,
  • Fig. 5 is a front view of a variant of the arrangement of Fig. 1; and
  • 6 is a plan view of the thread balloon of the arrangement of FIG. 5.

In den Fig. 1 bis 3 ist die Spinnstelle einer Ringspinnmaschine bzw. der sich an dieser bildende Fadenballon schematisch dargestellt. Darstellungsgemäss läuft ein aus einem nicht dargestellten Streckwerk kommender Faden F in Richtung des Pfeiles P durch eine Fadenöse 1, das sogenannte "Sauschwänzchen" , und über einen auf einem Ring 2 rotierenden Läufer 3 zu einem Kops 4. Der Läufer 3 teilt dem Faden F in bekannter Weise seine Drehung mit und wickelt ihn auf dem Kops 4 auf. Dabei bildet sich zwischen der Fadenöse 1 und dem Läufer 3 infolge der Zentrifugalkraft des kreisenden Fadens F ein Fadenballon.1 to 3, the spinning position of a ring spinning machine or the thread balloon forming thereon is shown schematically. According to the illustration, a thread F coming from a drafting device (not shown) runs in the direction of arrow P through a thread eyelet 1, the so-called "swab tail", and via a rotor 3 rotating on a ring 2 to a cop 4. The rotor 3 divides the thread F into known manner with its rotation and winds it up on the cop 4. A thread balloon is formed between the thread eyelet 1 and the rotor 3 as a result of the centrifugal force of the rotating thread F.

Im Bereich des Fadenballons ist ein aus einer Lichtquelle (Sender) 5 für ein Strahlenbündel S und aus einem Empfänger 6 für dieses bestehender Sensor angeordnet, so dass also der kreisende Faden F periodisch das Strahlenbündel S schneidet; und zwar pro voller Kreisbewegung zweimal.Arranged in the area of the thread balloon is a light source (transmitter) 5 for a beam S and a receiver 6 for this existing sensor, so that the rotating thread F periodically intersects the beam S; twice per full circular movement.

Gemäss Fig. 3 bildet die Basis des Ballons einen Kreis 7, die Bewegungsbahn der im Niveau des Strahlenbündels S liegenden und damit dieses schneidenden Partie des Fadens F ist durch einen in Fig. 3 mit 8 bezeichneten Kreis gebildet.According to FIG. 3, the base of the balloon forms a circle 7, the path of movement of the portion of the thread F lying in the level of the beam S and thus intersecting this is formed by a circle designated by 8 in FIG. 3.

Solange der kreisende Faden F das Strahlenbündel S nicht schneidet, ist der Empfänger 6 voll mit dem Strahlenbündel S beaufschlagt und liefert ein entsprechendes konstantes Ausgangssignal. Jede Durchquerung des Strahlenbündels S durch den kreisenden Faden F führt zu einer entsprechenden Abschattung des auf dem Empfänger 6 auftreffenden Strahlenbündels S und somit zu einer charakteristischen Aenderung des Ausgangssignals des Empfängers 6. Der Grad oder die Intensität dieser Abschattung ist dabei, bei konstanter Rotationsgeschwindigkeit des Fadens F, ein Mass dür dessen Durchmesser.As long as the rotating thread F does not intersect the beam S, the receiver 6 is fully exposed to the beam S and delivers a corresponding constant output signal. Each crossing of the beam S through the rotating thread F leads to a corresponding shading of the beam S striking the receiver 6 and thus to a characteristic change in the output signal of the receiver 6. The degree or intensity of this shading is at a constant rotational speed of the thread F, a measure of its diameter.

Der Signalverlauf am Empfänger 6 ist in Fig. 4 schematisch dargestellt, wobei auf der Abszisse die Zeit t und auf der Ordinate der Grad der Abschattung A eingetragen ist. Darstellungsgemäss wird bei den Zeitpunkten t1 und t2, wenn der Faden F das Strahlenbündel S schneidet, im Empfänger 6 eine deutliche Abschattung registriert, welche durch einen Abschattungsimpuls I1 bzw. I2 symbolisiert ist. T bezeichnet die Dauer eines vollen Umlaufs des Fadens F.The signal curve at the receiver 6 is shown schematically in FIG. 4, the time t being entered on the abscissa and the degree of shading A being shown on the ordinate. According to the illustration, at times t1 and t2, when the thread F intersects the beam S, a clear shading is registered in the receiver 6, which is symbolized by a shading pulse I1 or I2. T denotes the duration of a full revolution of the thread F.

Während bei der Anordnung nach den Fig. 1 bis 3 der Sensor relativ nahe an der Fadenöse 1 und somit an der Spitze des Ballons angeordnet ist, zeigen die Fig. 5 und 6 eine Variante mit dem Sensor möglichst nahe an der Basis des Ballons. Dies erhöht die Zuverlässigkeit und Genauigkeit der Messung, weil an der Basis des Ballons bezüglich der Entfernung des Fadens F vom Sender 5 bzw. vom Empfänger 6 stabilere Verhältnisse vorliegen als im Bereich der Ballonspitze.While in the arrangement according to FIGS. 1 to 3 the sensor is arranged relatively close to the thread eyelet 1 and thus at the tip of the balloon, FIGS. 5 and 6 show a variant with the sensor as close as possible to the base of the balloon. This increases the reliability and accuracy of the measurement because there are more stable conditions at the base of the balloon with respect to the distance of the thread F from the transmitter 5 or from the receiver 6 than in the region of the balloon tip.

Wie schon erwähnt wurde, sind mit dem beschriebenen Verfahren zwei Bestimmungen des Fadendurchmessers pro Spindelumdrehung möglich. Da sich der Faden pro Spindelumdrehung in Längsrichtung nur in der Grössenordnung von einem Millimeter bewegt, liegen die Abtastintervalle auch bei ungefähr einem Millimetern. Diese Auflösung ist für die Bestimmung der Fadenfeinheit und/ oder der Fadenungleichmässigkeit völlig ausreichend; übliche Gleichmässigkeitsprüfer weisen beispielsweise eine Messlänge von 8 bis 10 Millimetern auf.As already mentioned, two determinations of the thread diameter per spindle revolution are possible with the described method. Since the thread moves in the longitudinal direction only in the order of magnitude of one millimeter per spindle revolution, the scanning intervals are also approximately one millimeter. This resolution is completely sufficient for determining the thread count and / or the thread unevenness; Conventional uniformity testers have a measuring length of 8 to 10 millimeters, for example.

Das beschriebene Verfahren und die zugehörige Vorrichtung haben zwei Hauptanwendungsgebiete, einerseits die Qualitäts- ­und anderseits die Produktionsüberwachung.The described method and the associated device have two main areas of application, on the one hand quality and on the other hand production monitoring.

Bezüglich Qualitätsüberwachung seien beispielsweise die Ueberwachung der Fadenfeinheit oder die Ueberwachung der Anzahl der Einzelfäden bei Zwirnen genannt. In gleicher Weise, wie bei den bekannten Laborprüfgeräten aus den Ergebnissen der Messung des Fadenquerschnitts oder der Fadendicke weitere Parameter, wie Ungleichmässigkeit, Spektrogramme, usw. abgeleitet werden, kann man auch beim erfindungsgemässen Verfahren aus einer Vielzahl von Messpunkten der Abschattungsmessung weitere derartige Parameter ableiten.With regard to quality monitoring, for example the monitoring of the thread count or the monitoring of the number of individual threads in threads are mentioned. In the same way as in the known laboratory testing devices, further parameters such as non-uniformity, spectrograms, etc. are derived from the results of the measurement of the thread cross-section or the thread thickness, In the method according to the invention it is also possible to derive further parameters of this type from a multiplicity of measuring points of the shadowing measurement.

Die Produktionsüberwachung kann deswegen erfolgen, weil die Abschattungsimpulse I1, I2 (Fig. 4) und deren Anzahl ein Mass für die Produktion darstellen; wenn die Produktion stillsteht, dann werden auch keine Abschattungsimpulse registriert. Mit Hilfe des erfindungsgemässen Verfahrens können somit Betriebsdaten wie Nutzeffekt (anhand der Abschattungsimpulse pro Betriebsstunde) und produzierte Länge (anhand der Gesamtanzahl der Abschattungsimpulse) und daraus in bekannter Weise die Produktionsgeschwindigkeit bestimmt werden.The production monitoring can take place because the shading pulses I1, I2 (FIG. 4) and their number represent a measure of the production; when production stops, no shading impulses are registered. With the aid of the method according to the invention, operating data such as efficiency (using the shading impulses per operating hour) and length produced (using the total number of shading impulses) and the production speed can be determined therefrom in a known manner.

Wenn die Abschattungsimpulse nicht nur bezüglich ihrer Amplitude ausgewertet (Durchmesserbestimmung) und/oder gezählt werden (Betriebsdaten), sondern wenn auch eine Ueberwachung des Auftretens der Abschattungsimpulse erfolgt, dann kann die Vorrichtung auch als Fadenwächter eingesetzt werden. Dies ist einfach möglich, weil bei laufender Maschine und gegebener Rotationsgeschwindigkeit des Läufers 3 die Frequenz der Abschattungsimpulse bekannt ist.If the shading pulses are not only evaluated in terms of their amplitude (diameter determination) and / or counted (operating data), but also if the occurrence of the shading pulses is monitored, then the device can also be used as a thread monitor. This is easily possible because the frequency of the shading pulses is known when the machine 3 is running and the rotor 3 is rotating at a given speed.

Schliesslich kann mit Hilfe des beschriebenen Verfahrens beim Ringspinnen ein sogenannter Luntenstopp in Aktion gesetzt werden.Finally, with the help of the described process in ring spinning, a so-called match stop can be activated.

Claims (7)

1. Verfahren zur On-line Produktions- und Qualitätsüberwachung an Textilmaschinen durch Bestimmung des Durchmessers eines sich aufgrund der Bildung eines Fadenballons quer zu seiner Längsrichtung bewegenden Fadens, dadurch gekennzeichnet, dass mindestens ein von einer Lichtquelle (5) auf einen Lichtempfänger (6) gerichtetes Strahlenbündel (S) am Ort des querbewegten Fadens (F) in den Fadenlauf gelegt wird und diesen durchquert, wobei durch den querbewegten Faden eine intermittierende Abschwächung der Intensität des Strahlenbündels erfolgt, deren Dauer und/oder Grad als Mass für den Fadendurchmesser verwendet wird.1. A method for on-line production and quality monitoring on textile machines by determining the diameter of a thread moving transversely to its longitudinal direction due to the formation of a thread balloon, characterized in that at least one directed from a light source (5) to a light receiver (6) The bundle of rays (S) is placed in the thread path at the location of the transverse thread (F) and traverses it, whereby the intensity of the beam bundle is intermittently weakened by the transverse thread, the duration and / or degree of which is used as a measure of the thread diameter. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Auswertung der intermittierenden Abschwächung der Intensität des Strahlenbündels (S) anhand einer Verarbeitung der entsprechenden Abschattungsimpulse (I1, I2) des Lichtempfängers (6) erfolgt.2. The method according to claim 1, characterized in that the evaluation of the intermittent attenuation of the intensity of the beam (S) is carried out on the basis of a processing of the corresponding shading pulses (I1, I2) of the light receiver (6). 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass aus den aus den Abschattungsimpulsen (I1, I2) gewonnenen Werten des Fadendurchmessers weitere Parameter, wie beispielsweise ein Spektrogramm oder Aussagen über die Ungleichmässigkeit des untersuchten Fadens abgeleitet werden.3. The method as claimed in claim 2, characterized in that further parameters, such as a spectrogram or statements about the unevenness of the thread being examined, are derived from the values of the thread diameter obtained from the shading pulses (I1, I2). 4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Abschattungsimpulse (I1, I2) fortlaufend gezählt und dass daraus Betriebsda­ ten, wie beispielsweise Nutzeffekt, produzierte Länge und/oder Produktionsgeschwindigkeit bestimmt werden.4. The method according to claim 2, characterized in that the shading pulses (I1, I2) are counted continuously and that operating data ten, such as efficiency, length produced and / or production speed can be determined. 5. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass das Auftreten der Abschattungsimpulse (I1, I2) überwacht wird, und dass dann, wenn bei laufender Maschine nach einem durch die Rotationsgeschwindigkeit des Fadens (F) bestimmten Intervall kein Abschattungsimpuls auftritt, ein Fadenbruch angezeigt wird.5. The method according to claim 2, characterized in that the occurrence of the shading pulses (I1, I2) is monitored, and that if a shading pulse occurs after an interval determined by the rotational speed of the thread (F), a thread breakage is indicated becomes. 6. Vorrichtung zur Durchführung des Verfahren nach Anspruch 1, mit einem eine Lichtquelle zur Aussendung eines Strahlenbündels und einen Lichtempfänger für dieses aufweisenden Sensor zur Bestimmung des Durchmessers eines Fadens, dadurch gekennzeichnet, dass der Sensor (5, 6) an einer Stelle angeordnet ist, an welcher das Strahlenbündel (S) die Bahn des Fadens (F) bei dessen Querbewegung kreuzt, und dass Mittel zur Messung des Grades und/oder der Dauer der sich beim Durchgang des Fadens durch das Strahlenbündel am Lichtempfänger (6) ergebenden Abschattung vorgesehen sind.6. The device for carrying out the method according to claim 1, having a light source for emitting a beam and a light receiver for this sensor for determining the diameter of a thread, characterized in that the sensor (5, 6) is arranged at one point, at which the beam (S) crosses the path of the thread (F) during its transverse movement, and that means are provided for measuring the degree and / or the duration of the shadowing that results when the thread passes through the beam on the light receiver (6). 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Sensor (5, 6) im Bereich der Basis des Fadenballons angeordnet ist.7. The device according to claim 6, characterized in that the sensor (5, 6) is arranged in the region of the base of the thread balloon.
EP88102161A 1987-03-19 1988-02-15 Method and apparatus for the on-line production and quality control in textile machines Withdrawn EP0282742A1 (en)

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CH1043/87A CH671973A5 (en) 1987-03-19 1987-03-19
CH1043/87 1987-03-19

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EP0453890A1 (en) * 1990-04-24 1991-10-30 Maschinenfabrik Rieter Ag Method for regulating the tension of a roving on a roving machine
EP0638674A1 (en) * 1993-08-06 1995-02-15 SAVIO MACCHINE TESSILI S.r.l. Method and device for monitoring the soundness and quality of a twisted yarn
WO1998016673A1 (en) * 1996-10-15 1998-04-23 Zellweger Luwa Ag Method and device for assessing yarn quality
CN102995187A (en) * 2012-11-30 2013-03-27 宁波瑞能电子科技有限公司 Whole spinning machine monitoring system
CN103266370A (en) * 2013-05-27 2013-08-28 宁波瑞能电子科技有限公司 Installation device of broken yarn detecting mechanism
CN104328546A (en) * 2014-10-02 2015-02-04 青岛纺织机械股份有限公司 On-line untwisted yarn detection method
CN105624860A (en) * 2015-12-21 2016-06-01 浙江日发纺织机械股份有限公司 Balloon measurement device of direct twister
CN106087150A (en) * 2015-04-27 2016-11-09 索若德国两合股份有限公司 For determining the apparatus and method of the diameter of the ballooning of yarn being made up of moving yarn
CN106987942A (en) * 2017-06-12 2017-07-28 盐城工业职业技术学院 Yarn break checkout gear and method
CN107022817A (en) * 2016-02-02 2017-08-08 索若德国两合股份有限公司 The apparatus and method that ballooning of yarn diameter is determined on weaving loom station
CN110552094A (en) * 2019-08-02 2019-12-10 宜昌经纬纺机有限公司 Device and method for detecting distance from air ring to ingot tank
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CN112748154A (en) * 2020-09-15 2021-05-04 湖南工程学院 Specification parameter detection device and specification parameter detection method for elastic slub yarn

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283528A (en) * 1968-12-18 1972-07-26 Crabtree Engineering Group Col An improved method and apparatus for detecting yarns
DE3237371A1 (en) * 1981-10-09 1983-09-01 Murata Kikai K.K., Kyoto METHOD AND DEVICE FOR TESTING THE THREAD EVALUITY IN A TEXTILE MACHINE, ESPECIALLY SPINNING MACHINE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283528A (en) * 1968-12-18 1972-07-26 Crabtree Engineering Group Col An improved method and apparatus for detecting yarns
DE3237371A1 (en) * 1981-10-09 1983-09-01 Murata Kikai K.K., Kyoto METHOD AND DEVICE FOR TESTING THE THREAD EVALUITY IN A TEXTILE MACHINE, ESPECIALLY SPINNING MACHINE

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* Cited by examiner, † Cited by third party
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CH681233A5 (en) * 1990-04-24 1993-02-15 Rieter Ag Maschf
EP0453890A1 (en) * 1990-04-24 1991-10-30 Maschinenfabrik Rieter Ag Method for regulating the tension of a roving on a roving machine
EP0638674A1 (en) * 1993-08-06 1995-02-15 SAVIO MACCHINE TESSILI S.r.l. Method and device for monitoring the soundness and quality of a twisted yarn
US5495113A (en) * 1993-08-06 1996-02-27 Savio Macchine Tessili Method and device for monitoring the soundness and quality of a twisted yarn
WO1998016673A1 (en) * 1996-10-15 1998-04-23 Zellweger Luwa Ag Method and device for assessing yarn quality
CN1082576C (en) * 1996-10-15 2002-04-10 泽韦格路瓦有限公司 Method and device for assessing yarn quality
US6430995B1 (en) 1996-10-15 2002-08-13 Zellweger Luwa Ag Method and device for assessing yarn quality
CN102995187A (en) * 2012-11-30 2013-03-27 宁波瑞能电子科技有限公司 Whole spinning machine monitoring system
CN103266370B (en) * 2013-05-27 2016-08-10 宁波瑞能电子科技有限公司 The erecting device of broken yarn detection mechanism
CN103266370A (en) * 2013-05-27 2013-08-28 宁波瑞能电子科技有限公司 Installation device of broken yarn detecting mechanism
CN104328546A (en) * 2014-10-02 2015-02-04 青岛纺织机械股份有限公司 On-line untwisted yarn detection method
CN106087150A (en) * 2015-04-27 2016-11-09 索若德国两合股份有限公司 For determining the apparatus and method of the diameter of the ballooning of yarn being made up of moving yarn
CN105624860A (en) * 2015-12-21 2016-06-01 浙江日发纺织机械股份有限公司 Balloon measurement device of direct twister
CN105624860B (en) * 2015-12-21 2017-11-10 浙江日发纺织机械股份有限公司 Straight twister air ring measurement apparatus
CN107022817A (en) * 2016-02-02 2017-08-08 索若德国两合股份有限公司 The apparatus and method that ballooning of yarn diameter is determined on weaving loom station
KR20170092123A (en) * 2016-02-02 2017-08-10 자우러 저머니 게엠베하 운트 코. 카게 Device and method for determining the diameter of a yarn balloon formed by a continuous thread at a workstation of a yarn balloon forming textile machine
EP3208370A1 (en) * 2016-02-02 2017-08-23 Saurer Germany GmbH & Co. KG Device and method for determining the diameter of a thread balloon, formed by a running thread at the workstation of a textile machine
CN107022817B (en) * 2016-02-02 2019-07-12 索若德国两合股份有限公司 The device and method of ballooning of yarn diameter are determined on weaving loom station
CN106987942A (en) * 2017-06-12 2017-07-28 盐城工业职业技术学院 Yarn break checkout gear and method
CN110552094A (en) * 2019-08-02 2019-12-10 宜昌经纬纺机有限公司 Device and method for detecting distance from air ring to ingot tank
CN110552094B (en) * 2019-08-02 2021-08-27 宜昌经纬纺机有限公司 Device and method for detecting distance from air ring to ingot tank
CN110670191A (en) * 2019-09-30 2020-01-10 三峡大学 Device and method for judging diameter of rotary circumscribed circle of wire rod
CN110670191B (en) * 2019-09-30 2021-09-21 三峡大学 Device and method for judging diameter of rotary circumscribed circle of wire rod
CN112748154A (en) * 2020-09-15 2021-05-04 湖南工程学院 Specification parameter detection device and specification parameter detection method for elastic slub yarn

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Publication number Publication date
DD268007A5 (en) 1989-05-17
CH671973A5 (en) 1989-10-13
JPS63256731A (en) 1988-10-24

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