EP0650915B1 - Vorrichtung zur Überprüfung der Wickelqualität von Garnspulen und Verwendung der Vorrichtung an einer Spul- oder Spinnmaschine - Google Patents
Vorrichtung zur Überprüfung der Wickelqualität von Garnspulen und Verwendung der Vorrichtung an einer Spul- oder Spinnmaschine Download PDFInfo
- Publication number
- EP0650915B1 EP0650915B1 EP94116148A EP94116148A EP0650915B1 EP 0650915 B1 EP0650915 B1 EP 0650915B1 EP 94116148 A EP94116148 A EP 94116148A EP 94116148 A EP94116148 A EP 94116148A EP 0650915 B1 EP0650915 B1 EP 0650915B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- yarn
- bobbin
- sensor
- detector
- 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.)
- Expired - Lifetime
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Classifications
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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
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the package
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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
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
- B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
- B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
- B65H63/0324—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using photo-electric sensing means, i.e. the defect signal is a variation of light energy
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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
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the present invention relates to a device for checking the winding quality of yarn packages, with a sensor that a light source for illuminating part of the surface of a Spool of thread, means for imaging the illuminated part a detector, and an evaluation circuit for the detector generated signals.
- a device of this type known from DE-A-42 16 729 is designed as a test chamber, inside of that by CCD cameras formed surface or image sensors are arranged. The too The examining coil rests on a stand during the examination and is illuminated by two light sources like headlights. How DE-A-41 12 073 shows that the test chamber is central arranged for an entire spinning mill in the area of an interim storage facility. That means the coil test at a time takes place where an insufficient winding quality is no longer corrected can be, but the coil in question as a reject must be eliminated. Apart from that, can be known with this Device only the state of the outermost thread layer of the Coil are checked and there are no statements about the winding quality inside the spool is possible. It is therefore not exclude and it is even likely that of this Device rated as good spools of poor winding quality can have.
- the invention is now intended to provide a coil testing device with which the winding quality of the whole, but at least a large part of the coil in question is monitored can be.
- the coil device should be like this be trained that bad winding quality is not necessarily causes the coil in question to be unusable is eliminated, but that corrective interventions in the Coil are possible.
- test device there is therefore not one in the test device according to the invention single, central test chamber provided, the time after the Spinning or winding process is loaded with the finished bobbins, but there are many decentralized sensors on the spinning or Winding machine available, which the winding quality during manufacture monitor the coils. That means the winding quality is also monitored inside the coil, and that corrective Interventions in the manufacturing process are possible. If considering that rotor spinning and winding machines on everyone Have an electronic yarn cleaner in the spinning or winding position, then there is also the possibility of a connection the testing device according to the invention for the winding quality with the yarn cleaning system, which results in additional quality statements can result.
- the invention further relates to a use of the device mentioned on one with an electronic yarn cleaning system equipped winding or spinning machine.
- This use is characterized in that the signals of the device for Checking the winding quality and those of the yarn cleaning system evaluated with mutual consideration and a functional relationship between the two institutions will be produced.
- Fig. 1 with the reference numeral 1 is a ring spinning machine and with the reference numeral 2 denotes an automatic winder.
- the spinning mill are several, for example 40 spinning machines 1 and Automatic winder 2 provided, and each spinning machine 1 and each Automatic winder 2 each comprises a number of spinning or winding positions.
- Spinning bobbins 3 are produced on the spinning machines 1, through a transport system to the automatic winder 2 are transported where the spinning bobbins 3 rewound to 4 packages become. If it is not a ring, but one Rotor spinning mill, then the spinning machines produce directly Cross-wound bobbins and no automatic winder are required.
- the full packages 4 are replaced by a package changer 5 removed from the automatic winder 2 and from a loading device 6 of a transport device shown in dashed lines 7 passed.
- the transport device 7 conveys the packages 4 in the direction of the arrow up to an unloading device 8 which the packages from the transport device 7 takes over and feeds a test station 9.
- the state is in the test station 9 the surface of the thread layers of the winding visually from a machine guard and an optical test facility. Coils with unacceptable faults are sorted out and get into a suitable container 10 for rejects, and the coils of suitable quality are made with one Label E, sort and go to an interim storage facility 11.
- This type of control of packages in a production process subordinate, central test station is the state of the Technology and described for example in DE-A-41 12 073.
- a suitable optical test device is from DE-A-42 16 729 known.
- the package winding test system according to the present patent application differs from the mentioned prior art among others in that the control of the packages is no longer in one test station downstream of the production process, but during the production process and preferably in Cross-coil changer area 5. With regard to minimization of costs, it is recommended to use a hiking sensor which serves several winding positions.
- the hiking sensor can either on the package changer, or if there is none, on a suitable hiking facility be mounted. There is a on a winder Cross-wound bobbin changer for 30 or 60 bobbin positions, on a rotor spinning machine for about 120 spinning positions. If one assumes that a winding machine for production a bobbin takes about 90 minutes, then, depending on Speed of the package changer, each bobbin during checked their manufacture about 50 to 90 times. For rotor spinning machines is due to the lower production speed the test frequency is two to three times higher. This is even in the worst case, by orders of magnitude more than in the prior art, where practically only the outermost thread layer is checked. Of course, everyone can A separate sensor is provided for the winding or rotor spinning position his.
- Fig. 2 three cross-wound bobbins 4 are shown, the straight with Yarn G are spooled.
- the representation of the cheese 4 is greatly simplified.
- a groove drum arranged through which the respective Cheese is driven.
- One of the signals from the two sensors can be Desired speed of the yarn G are derived.
- the yarn passes through the measuring heads 12 in a known manner
- Yarn cleaning system for example of the USTER POLYMATIC type (USTER - registered trademark of Zellweger Uster AG).
- Such a yarn cleaning system contains a central control device 13 and one per measuring head 12 with the respective measuring head 12 and evaluation unit 14 connected to control unit 13 the central control device 13 are up to 84 evaluation units 14 connected.
- This sensor which will be explained later with reference to FIGS. 3 to 5 to be illuminated, the cross-wound bobbins 4 and forms them a detector.
- Whose signals are corresponding Evaluation circuit 16 supplied.
- the evaluation circuit 16 in the manner of the evaluation unit 14 trained of the yarn cleaning system and on the Cross-wound bobbin changer 5 mounted.
- the output of the evaluation circuit 16 is with a central control unit, as shown connected to the control unit 13 of the yarn cleaning system.
- the check of the winding quality of the packages 4 has Goal, winding errors of the packages and thus faulty production sites to recognize. This can result in a coil fault classification the cross-wound bobbins 4 and the bobbins can with corresponding quality data are marked.
- the mark is preferably done by contactless entry of the quality data in a arranged on the coil, by a machine writable and readable electronic memory chip formed Information carrier, the label E of that shown in Fig. 1 would complement or replace 4 bobbin.
- the coil testing system also offers the possibility upon detection of an error directly in the production process intervene and cut out the incorrectly wound thread (Winding machine) or production on the concerned Interrupt rotor position (rotor spinning machine).
- Winding machine incorrectly wound thread
- rotor spinning machine production on the concerned Interrupt rotor position
- Defective pieces of yarn are identified by specifying the Yarn cleaner or the bobbin inspection system through the on the bobbin and existing suction devices on the rotor spinning machine away.
- the coil testing device shown in principle an autonomous test facility that does not conform to the Presence of a yarn washer, and that too completely independent of the type or measuring principle of the thread cleaner is.
- the coil tester does not need one formed on the cross-coil changer 5 arranged hiking sensor 15, but there could also be a corresponding one at each production site Sensor should be provided.
- Prerequisite for using the in Figs. 3 to 5 sensors shown in a central test station would be one Device for rotating the coils.
- the package changer 5 can take on further control tasks. For example each package 4 weighed by the bobbin changer 5 and from the Weight with known thread number the length of the wound thread be determined.
- the bobbin error rate is made up of the yarn errors (Yarn cleaner) and from the errors of the winding (bobbin inspection system) together. Both types of error together provide a measure of all Fault or the quality of a coil.
- the control the coil density is known to be done by a machine Thread tensioning device, by balloon control or by regulation the winding speed depending on the unwinding condition the cop.
- Basic sizes for the mentioned control the bobbin density is the exact bobbin length (determined from various speed measurements), thread laying, the absolute thread number and the bobbin diameter.
- the coil density and their course within the coil is also a measure of the thread tension and can be used to control this if there is control of the thread laying.
- the coil testing device from Fig. 2 can be easily recognized.
- the high rotation speed of the coils cause either stroboscopic lighting and as Detector a camera with image processing or an evaluation circuit 16 with a correspondingly fast signal processing is used.
- the one common sensor 15 monitored coils 4 generally different Have diameters, what with a possible illustration the coil surface on the receiver got to. This can be done by the sensor either one sufficiently large depth of field or an auto focus system has, because of the relative size of the distance differences practically only an autofocus system comes into question. there can use the autofocus setting signal as a distance measurement signal used and derived from this the coil diameter become.
- sensor 15 mounted on the package changer 5 can only view certain parts of the package, in particular the end faces thereof, at an oblique angle.
- the well-known Scheimpflug principle can be used for the image, for example.
- image distortion must be compensated for by what appropriate shaping of the sensor elements, or mathematically can be done.
- the latter means that the detector is for one straight line is calibrated and that deviations from this be compensated arithmetically.
- a light gap 17 is formed in this sensor from a light source 18, for example a light emitting diode (LED) projected onto the area to be examined. It is this area around the outer surface, then the light gap 17 preferably projected parallel to the coil axis (arrangement according to Fig. 3a), if it is an end face, then the Projection radial to the coil axis.
- a light source 18 for example a light emitting diode (LED) projected onto the area to be examined. It is this area around the outer surface, then the light gap 17 preferably projected parallel to the coil axis (arrangement according to Fig. 3a), if it is an end face, then the Projection radial to the coil axis.
- the surface to be checked is placed on a with the light gap Detector line 19 shown, the direction of illumination and imaging have to be different.
- the individual elements the detector row are on lateral shifts in the light distribution sensitive.
- PSD position sensitive detector
- a double wedge detector 3b can be used.
- the latter exists a number of double wedges, each of which is a detector element forms.
- the output signals of the two double wedges each Detector elements are linked together, and the result Va of this connection is zero volts if the image 17 'of the Light gap 17 is in the middle of the detector element.
- With off-center Position is Va proportional to the deflection of the image 17 'in the one designated by an arrow in FIGS. 3a and 3b Direction.
- FIGS. 3a and 3b is a modified one Triangulation method for distance measurement; in Fig. 4a shows a real triangulation process.
- a light gap 17 is not projected onto the coil surface, but a pinhole 20, so a point of light, where the projection plane is oriented in the direction of the coil axis.
- the point of light projected obliquely onto the coil surface becomes imaged on a detector 19 (diode row, double wedge, PSD), the deflection is in turn a measure of the distance.
- a detector 19 diode row, double wedge, PSD
- Image interference on the outer surface of the coil 4 can with a Height profile measurement according to 4b, taking a sufficiently large one Local resolution is a prerequisite for this procedure.
- Difference to the wrap which is an increase in the form of a on the Forms circumferential thickness ring
- an image disturbance manifests itself as an increase in the thread laying track, this increase in the rotating spool in synchronism with the rotation period hikes up and down. If the on the coil surface projected light beam hits such an elevation, then the point of impact of the light beam shifts to the Detector by the amount ⁇ x.
- Fig. 3a and 4b where both wrap and image disturbance shift of the light beam impinging on the detector 19, can wrap and image disturbance by appropriate evaluation of the time and position dependent signal become.
- 5a and 5b show examples of the detection of discounts or threads that are known to stretch on the End faces.
- an oblique or grazing lighting chosen so that the threads through the long shadow cast a stronger contrast.
- a section of the end faces is placed on a line sensor 21 shown, which is either off-center (Fig. 5a) or radial (Fig. 5b) is arranged to the coil axis.
- the individual elements the line sensor consist of narrow light receivers, for example Photodiodes, the width of which is that of the shadow corresponds.
- An existing tension thread 22 is whether it is stretched (Fig. 5b) or deflected (Fig. 5a) while each revolution exactly once or twice those 1 to 2 photodiodes cover that correspond to its distance from the turning center. At this moment, one is on the detector element in question clear signal and the tension thread 22 can be based on the Falling below a threshold value can be detected.
- the each Area outside the image of the coil face of the line sensor 21 is not taken into account in the evaluation. With an interconnected multiple arrangement of lines you can relate to the coil diameter to a certain extent to adjust.
- one relative to one compared to the coil face small line sensor behind a transparent LCD screen use arranged large-area detector, or one maps the LCD screen to a smaller detector.
- the obliquely illuminated face is on the LCD screen, which is, for example, a display without a backplane mirror and the screen is controlled so that only one at a time narrow line is transparent.
- This line traverses across the Screen, the measurement time per line position at least one Coil revolution is.
- This arrangement has the advantage that The length and width of the lines are easy to program and that the line length is optimally adapted to the coil size can.
- Another variant of a measuring arrangement could consist of the area to be checked (coil jacket and / or end faces) to illuminate at an angle and on a parallel to the coil axis Map photodiode array.
- the one from the oblique lighting resulting long shadow cast at the exit gives the Photodiodes a waveform from which a variety of winding errors is recognizable.
- This method will not all Detect winding faults, but it is simple and also inexpensive. And it will, like all described online methods the well-known system under the central test chamber with respect to the meaningfulness of the measurement results by orders of magnitude surpass.
- the so-called ambiguity is determined by means of a color analysis of the yarn measured on the outer surface, either different Waves of light radiated in and the reflection light analyzed with a detector or illuminated with white light and the reflection light with multiple detectors with different Color filtering is analyzed. You can also use infrared or work with fluorescence radiation. In any case, with everyone Passing the bobbin changer measured the color value for each bobbin and saved and compared with previous measurements, where above a certain deviation between the values Alarm is triggered.
- the coil diameter can also be measured, using standard methods such as triangulation or correction signal of the autofocus.
- the general rule is that the sensors and evaluations of the yarn cleaning system included in the coil test as an online early warning system are, and that the actual coil testing system one enables precise qualification of the errors.
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
- Fig. 1
- eine schematische Darstellung einer Spinnerei/Spulerei, die mit einer Spulenprüfvorrichtung nach dem Stand der Technik ausgerüstet ist,
- Fig. 2
- eine schematische Darstellung eines Teils einer erfindungsgemässen Spulenprüfvorrichtung und von deren Positionierung im Spinn-/Spulprozess,
- Fig. 3a, 3b
- schematische Darstellungen eines ersten Ausführungsbeispiels des Sensors der Vorrichtung von Fig. 2,
- Fig. 4a, 4b
- schematische Darstellungen eines zweiten Ausführungsbeispiels des Sensors der Vorrichtung von Fig. 2;
- Fig. 5a, 5b
- zwei Varianten eines dritten Ausführungsbeispiels des Sensors der Vorrichtung von Fig. 2.
- Abschläge (Spannfäden an einer der beiden Stirnseiten)
- Bildwicklungen
- Blumenkohl (Deformationsfehler)
- Restfäden, Beifäden
- Wirrlagen
- Deformation radial (Bildstörung auf der Stirnfläche)
- Deformation axial (Bildstörung auf der Mantelfläche, sogenannte Trommelwickel)
- Zweischeinigkeit (Farbveränderungen auf der Spule, die durch Aenderungen des Rohmaterials oder Kopsverwechslung verursacht sind)
- Putzringe in der Rotorspinnerei
- Fadenreserve (unten, oben)
- Spulendichte
- Hülsenfarbe
- Spulendurchmesser
Aus Fig. 2 ist ersichtlich, dass ein auf dem Kreuzspulenwechsler 5 montierter Sensor 15 bestimmte Partien der Kreuzspulen, insbesondere deren Stirnflächen, nur schiefwinkelig einsehen kann. Um hier bei der Abblidung eine gleichmässige Bildschärfe über die untersuchte Fläche zu garantieren, kann beispielsweise für die Abbildung das bekannte Scheimpflug-Prinzip verwendet werden.
- Bei einem Reinigermesskopf der in Figur 3 der EP-A-0 401 600 beschriebenen Art mit einem optischen und einem kapazitiven Messorgan, die voneinander beabstandet angeordnet sind und räumlich getrennte Messzonen aufweisen, kann man mit einem Korrelationsverfahren die Garngeschwindigkeit messen und dadurch in der Auswerteeinheit einen auf dem Korrelationsprinzip basierenden Geschwindigkeitssenor realisieren. Während beim Aufwickeln die Fadengeschwindigkeit beträchtlich schwankt (um 30 bis 50%), bleibt bei einem Wickel, wo der Faden bekanntlich aus der Changierung der Nutentrommel springt, die Fadengeschwindigkeit ungefähr konstant. Der Geschwindigkeitssensor erkennt dieses abnormale Geschwindigkeitsverhalten und kann eine Wickelwarnung abgeben. Oder er aktiviert den am Spulenwechsler montierten Sensor, der den Zustand der betreffenden Spule überprüft und gegebenenfalls die Wickelwarnung bestätigt.
- Im Fall der soeben beschriebenen Geschwindigkeitsmessung mit dem Garnreiniger kann in dessen Auswerteeinheit die Garngeschwindigkeit laufend zeitlich integriert werden. Der Sensor auf dem Spulenwechsler misst bei jedem Durchgang den Durchmesser der Spule. Diese beiden Signale werden im Steuergerät 13 (Fig. 2) miteinander verknüpft und die Verknüpfung ergibt den Profilverlauf der Dichte über die ganze Spule.
- An der Spulstelle können verschiedene Geschwindigkeiten gemessen werden, aus denen durch arithmetische Verknüpfung Aussagen über den Wickelvorgang abgeleitet werden können. Diese Geschwindigkeiten sind insbesondere die Rotationsgeschwindigkeit der Nutentrommel, die horizontale Fadenverlegungsgeschwindigkeit auf der Nutentrommel, die anhand der Nutentrommel und der Fadenverlegungsgeschwindigkeit abgeleitete Sollgeschwindigkeit des Garns (siehe dazu die US-A-5 074 480) und die mit dem optisch-kapazitiven Messkopf der Garnreinigungsanlage ermittelte momentane Garngeschwindigkeit.
- Ein Garnreiniger, der einen Fremdfasersensor der in der WO-A-93/19359 beschriebenen Art enthält, misst laufend den Weissheitsgrad des Garns. Sobald der Fremdfasersensor eine Abweichung fesstellt, aktiviert er den Sensor auf dem Spulenwechsler, der dann mit seiner Sensorik den Farbwert oder die Fluoreszenz des Garns überprüft und entscheidet, ob der betreffende Kops zu eliminieren ist. Der Vorteil dieser Kombination des Reinigers und der Spulenprüfung besteht darin, dass die im Aussagewert eher beschränkte und daher nicht ganz zuverlässige Farberkennung beim Reiniger nur zur Vorselektion und nicht als Abstellsignal eingesetzt wird. Dieses Beispiel macht deutlich, dass durch die beschriebene online-Spulenprüfung die Funktionstüchtigkeit und Zuverlässigkeit des Reinigers erheblich unterstützt werden kann.
Claims (16)
- Vorrichtung zur Überprüfung der Wickelqualität von Garnspulen (4), mit einem Sensor (15), der eine Lichtquelle (18) zur Beleuchtung eines Teils der Oberfläche einer Garnspule (4), Mittel zur Abbildung des beleuchteten Teils der Oberfläche auf einen Detektor und eine Auswerteschaltung für die vom Detektor erzeugten Signale aufweist, dadurch gekennzeichnet, dass mindestens ein Sensor (15) der genannten Art für die Spinn - oder Spulstellen dezentral an einer Spinn- oder Spulmaschine angeordnet ist, dass der Sensor auf eine Mantelfläche der Garnspulen (4) gerichtet ist und dadurch diese Garnspulen (4) auch im Spuleninneren überwacht werden.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass an jeder Spinn- oder Spulstelle ein Sensor (15) angeordnet ist.
- Vorrichtung nach Anspruch 1, mit jeweils mehrere Produktionsstellen bedienenden Spulenwechslern zur Entnahme der vollen Spulen, dadurch gekennzeichnet, dass die Sensoren (15) auf den Spulenwechslern (5) montiert und in der Art eines Wandersensors jeweils mehreren Produktionsstellen zugeordnet sind.
- Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Lichtquelle (18) des Sensors (15) so angeordnet ist, dass eine schräge oder streifende Beleuchtung der Oberfläche der Garnspule (4) erfolgt.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Oberfläche der Garnspule (4) durch einen Lichtspalt (17) beleuchtet und das Bild (17') dieses Lichtspalts auf den Detektor (19) abgebildet ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Oberfläche der Garnspule (4) durch eine Lochblende (20) punktförmig beleuchtet und dass dieser Lichtpunkt auf den Detektor (19) abgebildet ist.
- Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Detektor (19) durch eine Sensorzeile, vorzugsweise durch einen Doppelkeilsensor gebildet ist.
- Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Detektor (19) ein positionssensitiver Detektor (PSD) ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass zur Detektion von Spannfäden (22) ein radialer Ausschnitt der Stirnflächen der Spulen (4) auf einen aus zeilenförmigen Lichtempfängern bestehenden oder zeilenförmig beleuchtbaren Detektor (21) abgebildet ist, wobei die Breite der Zeilen angenähert der Breite des Schattenwurfs eines Spannfadens entspricht.
- Vorrichtung nach Ansruch 4, dadurch gekennzeichnet, dass der Detektor (19) durch ein parallel zur Achse der Spule (4) angeordnetes Photodiodenarray gebildet ist.
- Verwendung der Vorrichtung nach Anspruch 1 an einer mit einer elektronischen Garnreinigungsanlage ausgerüsteten Spul- oder Spinnmaschine, dadurch gekennzeichnet, dass die Signale der Vorrichtung zur Überprüfung der Wickelqualität und diejenigen der Garnreinigungsanlage (12, 13, 14) unter gegenseitiger Berücksichtigung ausgewertet werden und ein funktioneller Zusammenhang zwischen beiden Einrichtungen hergestellt wird.
- Verwendung nach Anspruch 11, dadurch gekennzeichnet, dass von der Garnreinigungsanlage (12, 13, 14) die Garngeschwindigkeit gemessen und auf Schwankungen überprüft wird, und dass abnormale Schwankungen als Indiz für einen Wickelfehler interpretiert werden und vorzugsweise der zugeordneten Sensor (15) der Vorrichtung zur Überprüfung der Wickelqualität aktivieren.
- Verwendung nach Anspruch 12, dadurch gekennzeichnet, dass von der Garnreinigungsanlage (12, 13, 14) die Garngeschwindigkeit gemessen und laufend integriert und von der Vorrichtung zur Überprüfung der Wickelqualität der Durchmesser der Spulen (4) gemessen wird, und dass beide Messwerte zur Gewinnung des Profilverlaufs der Dichte über die Spule verknüpft werden.
- Verwendung nach Anspruch 11, dadurch gekennzeichnet, dass die momentane Garngeschwindigkeit gemessen und durch Spektralanalyse auf Frequenzänderungen untersucht wird, dass ausserhalb einer gegebenen Grenze liegende Frequenzkomponenten als Wickelfehler klassiert werden, und dass die Qualifizierung der Fehler durch die Vorrichtung zur Überprüfung der Wickelqualität erfolgt.
- Verwendung nach Anspruch 14, dadurch gekennzeichnet, dass für die Spektralanalyse digitale Signalprozessoren verwendet werden.
- Verwendung nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass zusätzlich zur momentanen Garngeschwindigkeit noch andere Geschwindigkeiten, insbesondere die Rotations- und die Fadenverlegungsgeschwindigkeit der die Kreuzspule (4) antreibenden Nutentrommel gemessen, und dass diese Geschwindigkeiten einer Spektralanalyse unterzogen werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH326293 | 1993-10-29 | ||
CH03262/93A CH686779A5 (de) | 1993-10-29 | 1993-10-29 | Vorrichtung zur Ueberpruefung der Wickelqualitaet von Garnspulen und Verwendung der Vorrichtung an einer Spul- oder Spinnmaschine. |
CH3262/93 | 1993-10-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0650915A1 EP0650915A1 (de) | 1995-05-03 |
EP0650915B1 true EP0650915B1 (de) | 2001-01-10 |
Family
ID=4252178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94116148A Expired - Lifetime EP0650915B1 (de) | 1993-10-29 | 1994-10-13 | Vorrichtung zur Überprüfung der Wickelqualität von Garnspulen und Verwendung der Vorrichtung an einer Spul- oder Spinnmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US5636803A (de) |
EP (1) | EP0650915B1 (de) |
JP (1) | JPH07172699A (de) |
CN (1) | CN1079776C (de) |
AT (1) | ATE198587T1 (de) |
CH (1) | CH686779A5 (de) |
DE (1) | DE59409633D1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0761853A1 (de) * | 1995-09-06 | 1997-03-12 | Zellweger Luwa Ag | Vorrichtung zur Überwachung eines bewegten Garns |
JP2877079B2 (ja) * | 1996-06-11 | 1999-03-31 | 村田機械株式会社 | パッケージの品質監視装置 |
DE69705532T2 (de) * | 1997-03-19 | 2002-05-16 | Cognivision Res S L | Verfahren zur überprüfung von textilspulen und vorrichtung für seine durchführung |
IT1304528B1 (it) * | 1998-01-02 | 2001-03-19 | Massimo Brunamonti | Metodo e dispositivo per la rilevazione di difetti di filati in fasedi produzione in particolare filati di ciniglia. |
JP4756411B2 (ja) * | 1998-03-25 | 2011-08-24 | ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト | 長手方向に運動するテスト品の特性を測定する装置 |
DE19836071A1 (de) * | 1998-08-10 | 2000-02-17 | Schlafhorst & Co W | Verfahren zur Erkennung von Fadenresten auf Spinnkopshülsen |
WO2001051397A1 (de) * | 2000-01-14 | 2001-07-19 | Zellweger Luwa Ag | Verfahren zur erfassung von qualitätsmerkmalen an garn |
EP1410002B1 (de) * | 2001-07-12 | 2009-06-24 | Uster Technologies AG | Verfahren zur erkennung von fremdstoffen in einem textilen material |
ITFI20040004A1 (it) * | 2004-01-09 | 2004-04-09 | Actis Active Sensors S R L | Dispositivo e metodo per rivelare la presenza e/0 il movimento di un filo |
ES2277710B1 (es) * | 2004-10-06 | 2008-05-16 | Asociacion De Investigacion De La Industria Textil | Sistema para la deteccion de mezclas en conos de hilo en crudo, en linea de produccion, transporte y/o almacenamiento. |
DE102005039211B3 (de) * | 2005-08-17 | 2006-11-02 | Neuenhauser Maschinenbau Gmbh | Verfahren und Vorrichtung zum Prüfen von Garnspulen auf einstellbare Qualitätskriterien |
DE102005049567A1 (de) * | 2005-10-17 | 2007-04-19 | SSM Schärer Schweiter Mettler AG | Verfahren und Vorrichtung zur Regelung der Spulendichte einer Garnspule |
EP1989139A1 (de) * | 2006-02-24 | 2008-11-12 | SSM Schärer Schweiter Mettler AG | Verfahren und vorrichtung zur einstufung der qualität einer garnspule |
DE102006035251A1 (de) * | 2006-07-26 | 2008-01-31 | Vienco Gmbh | Verfahren und Anordnung zur Bestimmung der Garnqualität und/oder Spulenqualität eines laufenden Fadens auf Basis der Laser-Doppler-Anemometrie |
EP2042877B1 (de) * | 2007-09-28 | 2012-02-08 | Gebrüder Loepfe AG | Verfahren und Vorrichtung zum Messen der Geschwindigkeit eines Garns |
JP2011508107A (ja) * | 2007-12-13 | 2011-03-10 | ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト | リング精紡機の複数の作業個所を監視する装置及び方法 |
CH699599A1 (de) * | 2008-09-29 | 2010-03-31 | Uster Technologies Ag | Verfahren und vorrichtung zur überwachung von spleissen in einem länglichen textilen prüfgut. |
DE102014003329A1 (de) * | 2014-03-08 | 2015-09-10 | Saurer Germany Gmbh & Co. Kg | Verfahren und Vorrichtung zum Betreiben einer Offenend-Rotorspinnmaschine |
ITPO20150002A1 (it) * | 2015-02-06 | 2016-08-06 | Ecafil Best Spa Ind Filati | Sistema e metodo di controllo e programmazione della produzione di un gomitolo |
CN106629248A (zh) * | 2016-11-28 | 2017-05-10 | 江苏悦达家纺有限公司 | 基于实时检测的络筒工艺用络卷筒及其检测方法 |
WO2019170673A1 (de) * | 2018-03-07 | 2019-09-12 | Oerlikon Textile Gmbh & Co. Kg | Prüfverfahren und prüfvorrichtung zur analyse einer gewickelten fadenspule |
CH715908A1 (de) * | 2019-03-07 | 2020-09-15 | Rieter Ag Maschf | Verfahren zur Herstellung von Garn mit einer Ringspinnmaschine und Ringspinnmaschine. |
IT201900009636A1 (it) * | 2019-06-20 | 2020-12-20 | Thema 2 S R L | Dispositivo e relativo metodo per il controllo automatico della tonalità di colore di una bobina di filo |
IT201900009639A1 (it) * | 2019-06-20 | 2020-12-20 | Thema 2 S R L | Dispositivo e relativo metodo per il controllo automatico della tonalità di colore di una bobina di filo per tessuti |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016464A (en) * | 1959-06-10 | 1962-01-09 | Daystrom Inc | Apparatus for determining the location and thickness of a reflecting object |
DE1560582C3 (de) * | 1966-11-23 | 1980-06-26 | Reiners, Walter, Dr.-Ing., 4050 Moenchengladbach | Elektronischer Fadenwächter fur Wickelvorrichtungen |
US3584225A (en) * | 1969-05-19 | 1971-06-08 | Lindly & Co Inc | Automatic yarn inspector comprising double integrating means and electronic calibrating means |
JPS61114971A (ja) * | 1984-11-09 | 1986-06-02 | Murata Mach Ltd | 巻糸パツケ−ジの巻形検査方法 |
JPS6215339A (ja) * | 1985-07-04 | 1987-01-23 | Murata Mach Ltd | 巻糸パツケ−ジの巻形検査装置 |
JPS6262937A (ja) * | 1985-09-10 | 1987-03-19 | Murata Mach Ltd | 巻糸パツケ−ジの巻形検査装置 |
IT1185450B (it) * | 1985-10-16 | 1987-11-12 | Nuovo Pignone Spa | Stribbia ottica perfezionata,particolarmente adatta per open-end |
JPS6413376A (en) * | 1987-07-06 | 1989-01-18 | Teijin Ltd | Yarn package appearance checker |
CH675132A5 (de) * | 1987-09-01 | 1990-08-31 | Zellweger Uster Ag | |
CH678172A5 (de) * | 1989-06-07 | 1991-08-15 | Zellweger Uster Ag | |
DE4031101C2 (de) * | 1989-10-02 | 1998-08-20 | Murata Machinery Ltd | Automatisches Spulenwechselverfahren und Bedienungsroboter für eine Doppeldrahtzwirnmaschine |
US5184453A (en) * | 1989-10-02 | 1993-02-09 | Murata Kikai Kabushiki Kaisha | Robot for a double twister |
US5278635A (en) * | 1990-03-28 | 1994-01-11 | Konica Corporation | Surface defect detection apparatus |
IT1244556B (it) * | 1990-04-12 | 1994-07-15 | Murata Machinery Ltd | Sistema di controllo di produzione in uno stabilimento di filatura. |
JP2521090Y2 (ja) * | 1990-07-25 | 1996-12-25 | 村田機械株式会社 | 綾落ち検査装置 |
US5315366A (en) * | 1991-04-09 | 1994-05-24 | Murata Kikai Kabushiki Kaisha | Yarn package inspecting apparatus |
DE4216729A1 (de) * | 1991-05-23 | 1992-11-26 | Murata Machinery Ltd | Vorrichtung zum kontrollieren von fadenspulen |
JPH05178541A (ja) * | 1991-12-24 | 1993-07-20 | Toyobo Co Ltd | 合成繊維糸条の巻取装置 |
-
1993
- 1993-10-29 CH CH03262/93A patent/CH686779A5/de not_active IP Right Cessation
-
1994
- 1994-09-20 JP JP6260869A patent/JPH07172699A/ja active Pending
- 1994-10-13 DE DE59409633T patent/DE59409633D1/de not_active Expired - Fee Related
- 1994-10-13 EP EP94116148A patent/EP0650915B1/de not_active Expired - Lifetime
- 1994-10-13 AT AT94116148T patent/ATE198587T1/de active
- 1994-10-28 CN CN94117746.7A patent/CN1079776C/zh not_active Expired - Fee Related
- 1994-10-28 US US08/330,788 patent/US5636803A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE198587T1 (de) | 2001-01-15 |
CN1079776C (zh) | 2002-02-27 |
DE59409633D1 (de) | 2001-02-15 |
JPH07172699A (ja) | 1995-07-11 |
US5636803A (en) | 1997-06-10 |
CN1106536A (zh) | 1995-08-09 |
EP0650915A1 (de) | 1995-05-03 |
CH686779A5 (de) | 1996-06-28 |
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