EP1737776A1 - Method for reinitializing count of thread reel length - Google Patents

Method for reinitializing count of thread reel length

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Publication number
EP1737776A1
EP1737776A1 EP05728067A EP05728067A EP1737776A1 EP 1737776 A1 EP1737776 A1 EP 1737776A1 EP 05728067 A EP05728067 A EP 05728067A EP 05728067 A EP05728067 A EP 05728067A EP 1737776 A1 EP1737776 A1 EP 1737776A1
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EP
European Patent Office
Prior art keywords
speed
rotation
counting
measured
reset
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.)
Granted
Application number
EP05728067A
Other languages
German (de)
French (fr)
Other versions
EP1737776B1 (en
Inventor
Gilles Coral
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RITM
Original Assignee
Rieter Textile Machinery France SA
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Filing date
Publication date
Application filed by Rieter Textile Machinery France SA filed Critical Rieter Textile Machinery France SA
Publication of EP1737776A1 publication Critical patent/EP1737776A1/en
Application granted granted Critical
Publication of EP1737776B1 publication Critical patent/EP1737776B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H61/00—Applications of devices for metering predetermined lengths of running material
    • 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
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • 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 invention relates to the technical sector of textile yarn processing machines.
  • the invention finds an application in the field of winding which consists in applying a reel in formation on a motorized receiving cylinder to ensure both the rotational driving of the reel and the drawing of the thread.
  • the coil on which the wire is wound is subject to a movable assembly which encloses the central tube between rotary centering members allowing it to rotate on its axis, while causing it to be pressed against the motorized cylinder.
  • the device (s) can be coupled with means capable of warning the operator that the programmed footage is reached so that the latter performs the reception clearance, that is to say the evacuation of the reel and restarting the winding on an empty support.
  • the device can also be coupled with a means making it possible to interrupt the programmed winding reached, while waiting for an operator.
  • the device can also be coupled with automatic digging means when the programmed footage is reached. The aim is therefore to produce coils of perfectly equal lengths so that, for example, all the warp threads are identical, without knots or loss of reel bottoms.
  • the control devices are, for example, based on the measurement of the speed of the call members of the machine or of different means bringing together different winding parameters in order to then perform metering calculations.
  • Patent FR 2,123,176 which relates to a device based on the counting of pulses supplied by a sensor detecting the rotation of a shaft whose speed is representative of the speed of thread advancement.
  • the patent FR 2,309,832 describes a system based on the counting of pulses delivered by a sensor detecting the rotation of the coil, an electronic circuit evaluating the quantity of wire wound on the circumference of the coil with each rotation of the latter.
  • Patent FR 2,517,657 relates to a technical solution equivalent to that defined above with means capable of compensating for measurement errors due to slippage.
  • the operator may decide to restart production on a new reel. In this case, it is usually necessary to lift and discard the spool and place an empty tube to start production again. The metering counting of the position must then be reset to zero by means of a contactor linked to the position so that this counting restarts from the beginning.
  • a switch placed on the assembly which supports the coil or its tube detects the operation of the support characteristic of the replacement of the full coil by the empty tube.
  • Another means consists in placing a switch in the means for fixing the coil, in order to detect its presence and its temporary absence during the exchange of a full coil with an empty tube.
  • Such means are generally expensive and difficult to regulate.
  • they perform a reset as soon as the movements characterizing an exchange of full coils by an empty tube are detected, even if such an exchange is not actually carried out.
  • the object of the invention is to remedy these drawbacks in a simple, safe, efficient and rational manner.
  • the problem which the invention proposes to solve is to ensure the zeroing of the counting of the length of the spool of wire, while having the objective of removing any uncertainty due to the operator, of fully automating the resetting of the footage. , in order to simplify the work of said operator and optimize his intervention time in front of each position, while eliminating the possibility of making coils that are too short.
  • the invention finds an advantageous application in the case in particular of a winding device which consists in applying the reel in formation on a motorized receiving cylinder ensuring both the driving in rotation of the reel and the call some thread.
  • the counter is reset from the measurement of the diameter of the coil in formation after it has started.
  • a process has been designed and developed according to which: the speed of rotation obtained with the empty reel being previously recorded; after the start-up, the speed of rotation of the reel in formation is measured, which corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase and it is compared with that obtained when the coil is empty; - if the rotational speed measured after starting is substantially equal (or higher) to the rotational speed obtained with the empty spool, then the length counting is reset; if the speed after starting is significantly lower than the rotation speed corresponding to an empty tube, then the counting is resumed where it had remained.
  • the measurement of the speed after starting is understood immediately after the acceleration phase following starting. In practice, this speed corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase.
  • Resetting the counter can be a simple reset.
  • this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
  • the speed of rotation is measured continuously or at regular intervals during production.
  • the rotational speed measured immediately before stopping production is memorized.
  • the speed of rotation is measured after restarting and it is compared, on the one hand, with the speed of rotation obtained with an empty coil and, on the other hand, with the speed memorized immediately before stopping, so that: if the speed of rotation measured after restarting is substantially equal (or greater) to the speed of rotation obtained with the empty reel, the reset is carried out length counting; if the rotational speed measured after restarting is substantially equal to the rotational speed obtained immediately before stopping, the length counting is not reset and the counting is resumed where it had remained; if the rotational speed measured after restarting is less than the rotational speed obtained with the empty reel and greater than the rotational speed obtained immediately before stopping, the length counting is not reset, the resumption is resumed counting where it remained and an alarm is triggered to indicate a risk of counting anomalies.
  • the following test can usefully complete the process: - if the speed of rotation measured immediately before stopping is substantially equal to the speed of rotation obtained with the empty reel, a length counting reset is carried out and a trigger is triggered an alarm to indicate a risk of counting anomalies.
  • the speed of rotation corresponding to the final footage of a correctly wound coil and or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system is recorded beforehand. According to this second improvement: if the speed of rotation measured after restarting and / or during winding is substantially less than or equal to the speed of rotation corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to maximum diameter of the coil supported by the winding system, the winding is interrupted and an alarm is triggered to indicate that the coil has reached a too large diameter.
  • the following test can usefully complete the process: if the speed of rotation of the reel immediately before stopping at the programmed footage is different from the speed of rotation corresponding to the final footage, an alarm is triggered to indicate that the final diameter of the coil does not conform to the expected final diameter.
  • a table containing the speed of rotation as a function of the yardage achieved for a properly wound coil is recorded beforehand, so that, if the speed of rotation measured at any time of the winding is different from the corresponding speed of rotation at the footage reached at the time considered for a correctly wound coil, an alarm is triggered indicating that the diameter of the coil does not conform to the expected diameter.
  • the device comprises at least one means capable of measuring the speed of rotation of the coil, for example a sensor, delivering one or more pulses per revolution to deduce from the frequency of said pulses or from the time elapsed between said pulses, the speed of rotation.
  • the device comprises electrical or electronic means capable of performing the operations described above and of triggering the alarms in the form, for example, of one or more visual and / or audible signals.
  • the means may be subject to a display indicating the causes of the alarm.
  • the means can be a computer, an automaton, a logic electronic circuit, possibly combined with other processing and / or diagnostic means.
  • FIGS. 1, 2 and 3 are perspective views showing the principle of measuring the speed of rotation of the spool, in the following phases: - figure 1: starting of the coil on an empty tube; - Figure 2: stop and restart of the coil during winding; - Figure 3: end of winding in footage;
  • FIG. 4 shows a diagram showing the acceleration and then the deceleration of the speed of the coil during start-up;
  • Figure 5 is an algorithm describing the invention;
  • - Figure 6 shows an algorithm describing the invention according to a first improvement;
  • FIG. 1, 2 and 3 are perspective views showing the principle of measuring the speed of rotation of the spool, in the following phases: - figure 1: starting of the coil on an empty tube; - Figure 2: stop and restart of the coil during winding; - Figure 3: end of winding in footage;
  • FIG. 4 shows a diagram showing the acceleration and then the deceleration of the speed of the coil during start-up;
  • Figure 5 is an algorithm describing the invention;
  • - Figure 6 shows
  • the marks (F) correspond to the wire, (1) to the call cylinder, (2) to the coil tube, (3) to the wire winding, (4) to the wire guide and ( 5) by means of measuring the angular speed of the coil (2).
  • the measurement of the speed of rotation of the spool (2) is used, which is a variable which varies depending on the length of the wire wound.
  • the speed of rotation of the spool (2) is substantially inversely proportional to the circumference of the spool and therefore its diameter.
  • this speed of rotation of the coil is maximum when the tube is empty, and decreases as and as the coil circumference increases.
  • the speed of rotation (No) obtained with the empty tube (2) is recorded beforehand.
  • Resetting the counter can be a simple reset.
  • this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
  • the speed of rotation is measured continuously or at regular intervals during protection (see algorithm figure 6).
  • the rotation speed (Va) recorded before stopping is memorized.
  • the speed of rotation (Vd) is measured after restarting and compared, on the one hand, with the speed of rotation (Vo) obtained with the empty tube and, on the other hand, with the speed of rotation (Va) recorded immediately before Panêt.
  • the speed of rotation (Vp) corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system is previously recorded (see algorithm figure 7). If the rotational speed (Vd) measured after restarting and / or during production is less than or equal, within one tolerance, to the rotational speed (Vp) corresponding to the final footage of a correctly wound coil and / or at the speed corresponding to the maximum diameter supported by the winding system, the winding is interrupted. The system may issue an alarm indicating that the maximum diameter of the coil has been exceeded.
  • the measuring means (5) can be constituted for example by a magnetic, optical or other sensor, delivering one or more pulses per revolution. The speed of rotation is deduced from the frequency of these pulses or from the time elapsed between these pulses.
  • the device comprises means for carrying out the measurements and the treatments described above. These means can be electronic cards, logic circuits, automata, ...
  • Alarms can be identified by the combination of different signals or by the different rhythms, frequencies or flashing codes of these signals. Alarms may be subject to a display showing the reason for the alarm. Likewise, these alarms can be transmitted by network to an automaton presented by the machine or another production management system. Note that the alarms can be combined with any diagnostic means, such as voltage detectors, wire presence detectors, textile fault detectors, and more generally by any production quality control system. The various treatments are carried out on electronic cards (PLC for example) or integrated and / or combined with other diagnostic means.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

Reinitialization of counting the length of the bobbin threads comprises measuring the speed of rotation of the empty bobbin and speed of rotation of formation of the threaded bobbins and comparing the maximum speed attained at the winding phase and minimum speed obtained at the consecutive progressive phase with the empty bobbin. Method of reinitialization of counting the length of the bobbin threads comprises measuring the speed of rotation of the empty bobbin, measuring the speed of rotation after the start of bobbin thread formation, in which the maximum speed attained at the winding phase and the minimum speed at the consecutive progressive phase of bobbing of the threads are compared with the empty bobbin, either executing the reinitialization of the counting of length when measured speed of rotation after the start is substantially equal or greater than the speed of rotation obtained with the empty bobbin or starting the counting when the speed is substantially lesser than the speed of rotation obtained with the empty bobbin or where the bobbin rested. An independent claim is also included for a device for implementing the procedure comprising at least a mean to measure the speed of rotation of the bobbin by delivering one or more impulses to deduct the frequency of the impulsions or to the rate of frequency between the impulsions.

Description

Procédé de réinitialisation du comptage de longueur des bobines de fil Method for resetting the length counting of the spools of thread
L'invention se rattache au secteur technique des machines textiles de transformation de fils.The invention relates to the technical sector of textile yarn processing machines.
Plus particulièrement, l'invention trouve une application dans le domaine du renvidage qui consiste à appliquer une bobine en formation sur un cylindre de réception motorisé pour assurer, à la fois l'entraînement en rotation de la bobine et l'appel du fil. Généralement, la bobine sur laquelle est enroulé le fil est assujettie à un ensemble mobile qui enserre le tube central entre des organes rotatifs de centrage lui permettant de tourner sur son axe, tout en la faisant plaquer contre le cylindre motorisé.More particularly, the invention finds an application in the field of winding which consists in applying a reel in formation on a motorized receiving cylinder to ensure both the rotational driving of the reel and the drawing of the thread. Generally, the coil on which the wire is wound is subject to a movable assembly which encloses the central tube between rotary centering members allowing it to rotate on its axis, while causing it to be pressed against the motorized cylinder.
On connaît par ailleurs des dispositifs utilisés pour permettre de savoir exactement la quantité de fil enroulée sur chaque bobine. Une telle information est utile pour gérer les processus en aval susceptibles de réutiliser de telles bobines. On observe également que ces dispositifs peuvent être utilisés pour produire des bobines de longueur prédéterminée.There are also known devices used to allow to know exactly the amount of wire wound on each spool. Such information is useful for managing downstream processes that may reuse such coils. It is also observed that these devices can be used to produce coils of predetermined length.
Dans ce cas, le ou les dispositifs peuvent être couplés avec des moyens aptes à prévenir l'opérateur de ce que le métrage programmé est atteint pour que ce dernier effectue le cavage de réception, c'est-à-dire l'évacuation de la bobine et la relance du bobinage sur un support vide. Le dispositif peut également être couplé avec un moyen permettant d'interrompre l'enroulement programmé atteint, dans l'attente d'un opérateur. Le dispositif peut aussi être couplé avec un moyen de cavage automatique lorsque le métrage programmé est atteint. Le but recherché est donc de produire des bobines de longueurs parfaitement égales afin, par exemple, que tous les fils de chaîne soient identiques, sans nœuds, ni pertes de fonds de bobines. Les dispositifs de contrôle sont, par exemple, basés sur la mesure de vitesse des organes d'appel de la machine ou de différents moyens rassemblant différents paramètres de bobinage pour ensuite effectuer des calculs de métrage. Une solution technique ressort, par exemple, de l'enseignement du brevet FR 2.123.176 qui concerne un dispositif basé sur le comptage d'impulsions fournies par un capteur détectant la rotation d'un arbre dont la vitesse est représentative de la vitesse d'avancement du fil. Le brevet FR 2.309.832 décrit un système basé sur le comptage d'impulsions délivrées par un capteur détectant la rotation de la bobine, un circuit électronique évaluant la quantité de fil enroulé sur la circonférence de la bobine à chaque rotation de cette dernière. Le brevet FR 2.517.657 concerne une solution technique équivalente à celle définie précédemment avec des moyens aptes à compenser les erreurs de mesures dues aux glissements.In this case, the device (s) can be coupled with means capable of warning the operator that the programmed footage is reached so that the latter performs the reception clearance, that is to say the evacuation of the reel and restarting the winding on an empty support. The device can also be coupled with a means making it possible to interrupt the programmed winding reached, while waiting for an operator. The device can also be coupled with automatic digging means when the programmed footage is reached. The aim is therefore to produce coils of perfectly equal lengths so that, for example, all the warp threads are identical, without knots or loss of reel bottoms. The control devices are, for example, based on the measurement of the speed of the call members of the machine or of different means bringing together different winding parameters in order to then perform metering calculations. A technical solution emerges, for example, from the teaching of patent FR 2,123,176 which relates to a device based on the counting of pulses supplied by a sensor detecting the rotation of a shaft whose speed is representative of the speed of thread advancement. The patent FR 2,309,832 describes a system based on the counting of pulses delivered by a sensor detecting the rotation of the coil, an electronic circuit evaluating the quantity of wire wound on the circumference of the coil with each rotation of the latter. Patent FR 2,517,657 relates to a technical solution equivalent to that defined above with means capable of compensating for measurement errors due to slippage.
Ces différentes solutions de comptage proposent de démarrer sur l'action d'une remise à zéro manuelle ou à l'échéance du comptage de la bobine précédente. Par contre de telles solutions ne tiennent pas compte des événements éventuels susceptibles de se produire en cours de bobinage. Ces événements peuvent par exemple résulter d'un arrêt de production suite, par exemple, à la casse du fil ou autre problème technique sur la machine. Or, dans certains cas, l'opérateur peut décider de continuer la production sur la même bobine, sans remise à zéro du compteur, le comptage devant se poursuivre jusqu'au métrage déterminé. C'est par exemple le cas d'une casse du fil dans la mesure où il est possible d'effectuer une rattache de ce dernier.These different counting solutions offer to start with the action of a manual reset or after the counting of the previous coil. On the other hand, such solutions do not take account of possible events which may occur during winding. These events can for example result from a production stoppage following, for example, the breakage of the wire or other technical problem on the machine. However, in certain cases, the operator can decide to continue production on the same reel, without resetting the counter to zero, counting to continue until the determined footage. This is for example the case of a breakage of the wire insofar as it is possible to make a connection of the latter.
Dans d'autres cas, l'opérateur peut décider de relancer la production sur une nouvelle bobine. Dans ce cas, il est généralement nécessaire de relever et de rebuter la bobine et de placer un tube vide pour recommencer la production. Le comptage du métrage de la position doit alors être remis à zéro au moyen d'un contacteur lié à la position pour que ce comptage redémarrage depuis le début.In other cases, the operator may decide to restart production on a new reel. In this case, it is usually necessary to lift and discard the spool and place an empty tube to start production again. The metering counting of the position must then be reset to zero by means of a contactor linked to the position so that this counting restarts from the beginning.
Le problème technique de remise à zéro du comptage de la longueur des bobines est donc important. Des systèmes simples de remise à zéro ont été proposés, comme il ressort, par exemple, de l'enseignement des brevets précités. Par exemple, l'opérateur doit actionner ou non un bouton poussoir de remise à zéro lors de la relance selon qu'il poursuit ou non sur la même bobine. On conçoit que cette solution dépend directement de la vigilance de l'opérateur. Des erreurs d'appréciations ne peuvent donc pas être exclues.The technical problem of resetting the counting of the length of the coils is therefore significant. Simple reset systems have been proposed, as is apparent, for example, from the teaching of the aforementioned patents. For example, the operator must activate or not a reset push button when restarting depending on whether or not he continues on the same reel. We can see that this solution depends directly on the vigilance of the operator. Errors of assessment cannot therefore be excluded.
Un autre exemple de problème survient si l'opérateur effectue la remise à zéro sans remplacer la bobine pleine par un tube vide. Dans ce cas, la bobine pleine continue de grossir et peut dépasser la capacité du système et l'endommager. Pour remédier à de tels risques d'erreur ou d'omission de l'opérateur, des systèmes électriques ou électroniques relativement complexes ont été proposés. Par exemple, on connaît des machines équipées d'un système de contrôle électronique couplé avec un système d'interruption automatique du bobinage. La remise à zéro du métrage est automatique lorsqu'une bobine est arrivée à son terme. Ces dispositions suppriment le risque d'oubli de remise à zéro lors du redémarrage. Toutefois, cette solution ne fonctionne pas si rinterraption du bobinage est manuelle ou lors d'une interruption survenue avant que la bobine arrive à son terme.Another example of a problem arises if the operator performs the reset without replacing the full coil with an empty tube. In this case, the full coil continues to grow and may exceed the capacity of the system and damage it. To remedy such risks of operator error or omission, relatively complex electrical or electronic systems have been proposed. For example, machines are known that are equipped with an electronic control system coupled with an automatic winding interruption system. The reset of the footage is automatic when a reel has reached the end. These provisions eliminate the risk of forgetting to reset when restarting. However, this solution does not work if the winding is interrupted manually or during an interruption that occurred before the coil comes to an end.
On a également proposé une remise à zéro automatique lors que l'arrêt du système de renvidage est constaté. Toutefois, la remise à zéro n'est pas appropriée si la production et relancée sur la même bobine.Automatic resetting has also been proposed when the winding system has stopped. However, resetting is not appropriate if production is restarted on the same reel.
D'autres perfectionnements ont été proposés pour détecter l'échange de la bobine par un tube vide. Par exemple, un interrupteur placé sur l'ensemble qui supporte la bobine ou son tube, détecte la manœuvre du support caractéristique du remplacement de la bobine pleine par le tube vide. Un autre moyen consiste à placer un interrupteur dans les moyens de fixation de la bobine, afin de détecter sa présence et son absence temporaire pendant l'échange d'une bobine pleine par un tube vide. De tels moyens sont généralement coûteux et difficiles à régler. De plus, ils effectuent une remise à zéro dès lors que les mouvements caractérisant un échange de bobines pleines par un tube vide sont détectés, même si un tel échange n'est pas réellement réalisé.Other improvements have been proposed to detect the exchange of the coil by an empty tube. For example, a switch placed on the assembly which supports the coil or its tube, detects the operation of the support characteristic of the replacement of the full coil by the empty tube. Another means consists in placing a switch in the means for fixing the coil, in order to detect its presence and its temporary absence during the exchange of a full coil with an empty tube. Such means are generally expensive and difficult to regulate. In addition, they perform a reset as soon as the movements characterizing an exchange of full coils by an empty tube are detected, even if such an exchange is not actually carried out.
L'invention s'est fixée pour but de remédier à ces inconvénients, de manière simple, sûre, efficace et rationnelle. Le problème que se propose de résoudre l'invention est d'assurer la remise à zéro du comptage de longueur de bobine de fil, tout en ayant pour objectif de supprimer toute incertitude due à ropérateur, d'automatiser complètement la remise à zéro du métrage, afin de simplifier le travail dudit opérateur et d'optimiser son temps d'intervention devant chaque position, tout en supprimant la possibilité de réaliser des bobines trop courtes.The object of the invention is to remedy these drawbacks in a simple, safe, efficient and rational manner. The problem which the invention proposes to solve is to ensure the zeroing of the counting of the length of the spool of wire, while having the objective of removing any uncertainty due to the operator, of fully automating the resetting of the footage. , in order to simplify the work of said operator and optimize his intervention time in front of each position, while eliminating the possibility of making coils that are too short.
Comme indiqué, l'invention trouve une application avantageuse dans le cas notamment d'un dispositif de renvidage qui consiste à appliquer la bobine en formation sur un cylindre de réception motorisé assurant à la fois l'entraînement en rotation de la bobine et l'appel du fil.As indicated, the invention finds an advantageous application in the case in particular of a winding device which consists in applying the reel in formation on a motorized receiving cylinder ensuring both the driving in rotation of the reel and the call some thread.
Selon l'invention, la réinitialisation du compteur est réalisée à partir de la mesure du diamètre de la bobine en formation après son démarrage.According to the invention, the counter is reset from the measurement of the diameter of the coil in formation after it has started.
Pour résoudre le problème posé, il a été conçu et mis au point un procédé selon lequel : la vitesse de rotation obtenue avec la bobine vide étant préalablement enregistrée ; - on mesure, après le démarrage, la vitesse de rotation de la bobine en formation qui correspond à la vitesse maximale atteinte à la fin de la phase d'accélération du démarrage et au début de la phase de ralentissement progressif consécutif de la phase de bobinage et on la compare avec celle obtenue lorsque la bobine est vide ; - si la vitesse de rotation mesurée après le démarrage est sensiblement égale (ou supérieure) à la vitesse de rotation obtenue avec la bobine vide, alors on effectue la réinitialisation du comptage de longueur ; si la vitesse après démarrage est sensiblement inférieure à la vitesse de rotation correspondant à un tube vide, alors on reprend le comptage là où il en était resté.To solve the problem posed, a process has been designed and developed according to which: the speed of rotation obtained with the empty reel being previously recorded; after the start-up, the speed of rotation of the reel in formation is measured, which corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase and it is compared with that obtained when the coil is empty; - if the rotational speed measured after starting is substantially equal (or higher) to the rotational speed obtained with the empty spool, then the length counting is reset; if the speed after starting is significantly lower than the rotation speed corresponding to an empty tube, then the counting is resumed where it had remained.
La mesure de la vitesse après le démarrage s'entend immédiatement après la phase d'accélération consécutive au démarrage. En pratique, cette vitesse correspond à la vitesse maximale atteinte à la fin de la phase d'accélération du démarrage et au début de la phase de ralentissement progressif consécutif de la phase de bobinage.The measurement of the speed after starting is understood immediately after the acceleration phase following starting. In practice, this speed corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase.
La réinitialisation du compteur peut être une simple remise à zéro.Resetting the counter can be a simple reset.
Pour une précision de métrage améliorée, cette réinitialisation peut être une remise du compter à la longueur d'enroulement enregistrée pendant la phase d'accélération, estimée par exemple en comptant le nombre de rotations effectuées par le tube pendant cette phase.For improved measurement accuracy, this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
A partir de ce concept de base, plusieurs perfectionnements peuvent être envisagés.From this basic concept, several improvements can be envisaged.
Selon un premier perfectionnement, on mesure la vitesse de rotation en permanence ou à intervalles réguliers en cours de production.According to a first improvement, the speed of rotation is measured continuously or at regular intervals during production.
Selon ce premier perfectionnement : - on mémorise la vitesse de rotation mesurée immédiatement avant un arrêt de production. on mesure la vitesse de rotation après le redémarrage et on la compare, d'une part, avec la vitesse de rotation obtenue avec une bobine vide et, d'autre part, avec la vitesse mémorisée immédiatement avant l'arrêt, de sorte que : si la vitesse de rotation mesurée après le redémarrage est sensiblement égale (ou supérieure) à la vitesse de rotation obtenue avec la bobine vide, on effectue la réinitialisation du comptage de longueur ; si la vitesse de rotation mesurée après le redémarrage est sensiblement égale à la vitesse de rotation obtenue immédiatement avant l'arrêt, on n'effectue pas la réinitialisation du comptage de longueur et on reprend le comptage là où il était resté ; si la vitesse de rotation mesurée après le redémarrage est inférieure à la vitesse de rotation obtenue avec la bobine vide et supérieure à la vitesse de rotation obtenue immédiatement avant l'arrêt, on n'effectue pas la réinitialisation du comptage de longueur, on reprend le comptage là où il était resté et on déclenche une alarme pour indiqruer un risque d'anomalies de comptage.According to this first improvement: - the rotational speed measured immediately before stopping production is memorized. the speed of rotation is measured after restarting and it is compared, on the one hand, with the speed of rotation obtained with an empty coil and, on the other hand, with the speed memorized immediately before stopping, so that: if the speed of rotation measured after restarting is substantially equal (or greater) to the speed of rotation obtained with the empty reel, the reset is carried out length counting; if the rotational speed measured after restarting is substantially equal to the rotational speed obtained immediately before stopping, the length counting is not reset and the counting is resumed where it had remained; if the rotational speed measured after restarting is less than the rotational speed obtained with the empty reel and greater than the rotational speed obtained immediately before stopping, the length counting is not reset, the resumption is resumed counting where it remained and an alarm is triggered to indicate a risk of counting anomalies.
Selon ce perfectionnement, le test suivant peut compléter utilement le processus : - si la vitesse de rotation mesurée immédiatement avant l'arrêt est sensiblement égale à la vitesse de rotation obtenue avec la bobine vide, on effectue une réinitialisation du comptage de longueur et on déclenche une alarme pour indiquer un risque d'anomalies de comptage.According to this improvement, the following test can usefully complete the process: - if the speed of rotation measured immediately before stopping is substantially equal to the speed of rotation obtained with the empty reel, a length counting reset is carried out and a trigger is triggered an alarm to indicate a risk of counting anomalies.
Selon un deuxième perfectionnement, la vitesse de rotation correspondant au métrage final d'une bobine correctement bobinée et ou la vitesse de rotation correspondant au diamètre maximum de bobine supporté par le système de bobinage, est enregistrée au préalable. Selon ce deuxième perfectionnement : si la vitesse de rotation mesurée après le redémarrage et/ou en cours de bobinage est sensiblement inférieure ou égale à la vitesse de rotation correspondant au métrage final d'une bobine correctement bobinée et/ou la vitesse de rotation correspondant au diamètre maximum de bobine supporté par le système de bobinage, on commande Tinterruption du bobinage et on déclenche une alarme pour indiquer que la bobine a atteint un diamètre trop élevé.According to a second improvement, the speed of rotation corresponding to the final footage of a correctly wound coil and or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system, is recorded beforehand. According to this second improvement: if the speed of rotation measured after restarting and / or during winding is substantially less than or equal to the speed of rotation corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to maximum diameter of the coil supported by the winding system, the winding is interrupted and an alarm is triggered to indicate that the coil has reached a too large diameter.
Selon ce deuxième perfectionnement, le test suivant peut compléter utilement le processus : si la vitesse de rotation de la bobine immédiatement avant l'arrêt au métrage programmé est différente de la vitesse de rotation correspondant au métrage final, on déclenche une alarme pour indiquer que le diamètre final de la bobine n'est pas conforme au diamètre final attendu. Selon un autre perfectionnement, une table contenant la vitesse de rotation en fonction du métrage atteint pour une bobine conectement bobinée est enregistrée au préalable, de sorte que, si la vitesse de rotation mesurée à tout moment du bobinage est différente de la vitesse de rotation correspondant au métrage atteint au moment considéré pour une bobine correctement bobinée, on déclenche une alarme indiquant que le diamètre de la bobine n'est pas conforme au diamètre attendu.According to this second improvement, the following test can usefully complete the process: if the speed of rotation of the reel immediately before stopping at the programmed footage is different from the speed of rotation corresponding to the final footage, an alarm is triggered to indicate that the final diameter of the coil does not conform to the expected final diameter. According to another improvement, a table containing the speed of rotation as a function of the yardage achieved for a properly wound coil is recorded beforehand, so that, if the speed of rotation measured at any time of the winding is different from the corresponding speed of rotation at the footage reached at the time considered for a correctly wound coil, an alarm is triggered indicating that the diameter of the coil does not conform to the expected diameter.
Pour la mise en œuvre du procédé, quelle que soit la forme de réalisation, le dispositif comprend au moins un moyen apte à mesurer la vitesse de rotation de la bobine, par exemple un capteur, délivrant une ou plusieurs impulsions par tour pour déduire de la fréquence desdites impulsions ou du temps écoulé entre lesdites impulsons, la vitesse de rotation.For the implementation of the method, whatever the embodiment, the device comprises at least one means capable of measuring the speed of rotation of the coil, for example a sensor, delivering one or more pulses per revolution to deduce from the frequency of said pulses or from the time elapsed between said pulses, the speed of rotation.
Selon une autre caractéristique, le dispositif comprend des moyens électriques ou électroniques aptes à effectuer les opérations décrites précédemment et à déclencher les alarmes sous forme par exemple d'un ou plusieurs signaux visuels et/ou sonores. Les moyens peuvent être assujettis à un afficheur indiquant les causes de l'alarme. Les moyens peuvent être un calculateur , un automate, un circuit électronique logique, éventuellement combinés avec d'autres moyens de traitement et/ou diagnostic.According to another characteristic, the device comprises electrical or electronic means capable of performing the operations described above and of triggering the alarms in the form, for example, of one or more visual and / or audible signals. The means may be subject to a display indicating the causes of the alarm. The means can be a computer, an automaton, a logic electronic circuit, possibly combined with other processing and / or diagnostic means.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels : les figures 1, 2 et 3 sont des vues en perspective montrant le principe de mesure de la vitesse de rotation de la bobine, dans les phases suivantes : - figure 1 : démarrage de la bobine sur un tube vide ; - figure 2 : arrêt et redémarrage de la bobine en cours de bobinage ; - figure 3 : fin de bobinage en métrage ; la figure 4 montre un diagramme montrant l'accélération puis le ralentissement de la vitesse de la bobine lors du démarrage ; la figure 5 est un algorithme décrivant l'invention ; - la figure 6 montre un algorithme décrivant Pinvention selon un premier perfectionnement ; la figure 7 montre un algorithme décrivant l'invention selon un deuxième perfectionnement Sur ces différentes figures, les repères (F) correspondent au fil, (1) au cylindre d'appel, (2) au tube de la bobine, (3) à l'enroulement de fil, (4) au guide fil et (5) au moyen de mesure de la vitesse angulaire de la bobine (2).The invention is set out below in more detail with the aid of the figures of the appended drawings in which: FIGS. 1, 2 and 3 are perspective views showing the principle of measuring the speed of rotation of the spool, in the following phases: - figure 1: starting of the coil on an empty tube; - Figure 2: stop and restart of the coil during winding; - Figure 3: end of winding in footage; FIG. 4 shows a diagram showing the acceleration and then the deceleration of the speed of the coil during start-up; Figure 5 is an algorithm describing the invention; - Figure 6 shows an algorithm describing the invention according to a first improvement; FIG. 7 shows an algorithm describing the invention according to a second improvement In these different figures, the marks (F) correspond to the wire, (1) to the call cylinder, (2) to the coil tube, (3) to the wire winding, (4) to the wire guide and ( 5) by means of measuring the angular speed of the coil (2).
Selon le principe à la base de l'invention, on utilise la mesure de la vitesse de rotation de la bobine (2) qui est une grandeur qui varie en fonction du métrage de fil enroulé. Ainsi, après la phase d'accélération du démarrage, pour une vitesse d'avancement du fil donnée et d'un angle de croisure donné, la vitesse de rotation de la bobine (2) est sensiblement inversement proportionnelle à la circonférence de la bobine et donc à son diamètre.According to the principle underlying the invention, the measurement of the speed of rotation of the spool (2) is used, which is a variable which varies depending on the length of the wire wound. Thus, after the start-up acceleration phase, for a given wire advancement speed and a given crossing angle, the speed of rotation of the spool (2) is substantially inversely proportional to the circumference of the spool and therefore its diameter.
H en résulte que, après la phase d'accélération du démarrage, pour une vitesse d'avancement du fil et un angle de croisure sensiblement constant, cette vitesse de rotation de la bobine est maximale lorsque le tube est vide, et décroît au fur et à mesure que la circonférence de la bobine augmente. Selon l'invention, la vitesse de rotation (No) obtenue avec le tube vide (2) est enregistrée au préalable.It follows that, after the acceleration phase of the start-up, for a speed of advance of the wire and a substantially constant crossing angle, this speed of rotation of the coil is maximum when the tube is empty, and decreases as and as the coil circumference increases. According to the invention, the speed of rotation (No) obtained with the empty tube (2) is recorded beforehand.
Lors du redémarrage, la vitesse de rotation (Vd) mesurée après la phase de réaccélération (A) est comparée avec la vitesse de rotation (Vo) obtenue avec un tube vide.When restarting, the speed of rotation (Vd) measured after the re-acceleration phase (A) is compared with the speed of rotation (Vo) obtained with an empty tube.
Si la vitesse de rotation mesurée immédiatement après le redémarrage est égale (ou supérieure), à une tolérance près, à la vitesse de rotation obtenue avec un tube vide, on procède à la réinitialisation du comptage de longueur.If the speed measured immediately after restarting is equal (or greater), with one tolerance, to the speed obtained with an empty tube, the length counting is reset.
Si la vitesse après démarrage est sensiblement inférieure à la vitesse de rotation correspondant à un tube vide, alors on reprend le comptage là où il en était resté (On renvoie à l'algorithme de la figure 5).If the speed after start-up is significantly lower than the rotation speed corresponding to an empty tube, then the counting is resumed where it had remained (We refer to the algorithm in Figure 5).
La mesure de la vitesse après le démarrage s'entend immédiatement après la phase d'accélération consécutive au redémarrage. En pratique, cette vitesse correspond à la vitesse maximale atteinte à la fin de la phase d'accélération du démarrage et au début de la phase de ralentissement progressif consécutif de la phase de bobinage.The measurement of the speed after starting is understood immediately after the acceleration phase following restart. In practice, this speed corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase.
La réinitialisation du compteur peut être une simple remise à zéro.Resetting the counter can be a simple reset.
Pour une précision de métrage améliorée, cette réinitialisation peut être une remise du compter à la longueur d'enroulement enregistrée pendant la phase d'accélération, estimée par exemple en comptant le nombre de rotations effectuées par le tube pendant cette phase.For improved measurement accuracy, this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
Selon un premier perfectionnement, la vitesse de rotation est mesurée en permanence ou à intervalles réguliers en cours de protection (voir algorithme figure 6). Lors de l'arrêt de production, on mémorise la vitesse de rotation (Va) enregistrée avant l'arrêt. Lors du redémarrage, la vitesse de rotation (Vd) est mesurée après le redémarrage et comparée, d'une part, avec la vitesse de rotation (Vo) obtenue avec le tube vide et, d'autre part, avec la vitesse de rotation (Va) enregistrée immédiatement avant Panêt. A partir de ce principe de mesure, différents cas peuvent être envisagés : si la vitesse de rotation (Vd) mesurée après le redém-arrage est égale (ou supérieure), à une tolérance près, à la vitesse de rotation (Vo) obtenue avec le tube vide, on effectue la réinitialisation- du comptage de longueur ; si la vitesse de rotation (Vd) mesurée après le redéπnarrage est égale, à une tolérance près, à la vitesse de rotation (Va) obtenue immédiatement avant l'arrêt, on n'effectue pas la réinitialisatioo du comptage de longueur et on reprend le comptage là où il en était resté ; si la vitesse de rotation mesurée après le redémarrage est inférieure, à une tolérance près, à la vitesse de rotation obtenue avec le tube vide et supérieure, à une tolérance près, à la vitesse de rotation obtenue imniédiatement avant l'arrêt, on n'effectue pas la. réinitialisation du comptage de longueur, et on reprend le comptage là. où il en était resté, mais on émet une alarme (risque de produire une bobine trop courte).According to a first improvement, the speed of rotation is measured continuously or at regular intervals during protection (see algorithm figure 6). When production is stopped, the rotation speed (Va) recorded before stopping is memorized. When restarting, the speed of rotation (Vd) is measured after restarting and compared, on the one hand, with the speed of rotation (Vo) obtained with the empty tube and, on the other hand, with the speed of rotation (Va) recorded immediately before Panêt. From this measurement principle, different cases can be envisaged: if the speed of rotation (Vd) measured after restarting is equal (or higher), to within a tolerance, the speed of rotation (Vo) obtained with the empty tube, the length counting is reset; if the speed of rotation (Vd) measured after the restart is equal, within one tolerance, to the speed of rotation (Va) obtained immediately before stopping, the length counting is not reset and the resumption is taken over counting where it stayed; if the speed of rotation measured after restarting is less, to within a tolerance, the speed of rotation obtained with the empty tube and higher, within a tolerance, to the speed of rotation obtained immediately before stopping, we do not don't do it. reset the length count, and resume counting there. where it had remained, but an alarm is issued (risk of producing a too short coil).
Un contrôle supplémentaire peut utilement compléter le processus, si la vitesse de rotation (Va) mesurée immédiatemerjLt avant l'arrêt est, à une tolérance près, égale à la vitesse (Vo) de rotation obtenue avec le tube vide, alors on effectue la mise à zéro du comptage de longueur, le système émet une alarme (risque de produire une bobine trop longue).An additional check can usefully complete the process, if the speed of rotation (Va) measured immediately before the stop is, to within a tolerance, equal to the speed (Vo) of rotation obtained with the empty tube, then the setting is carried out at zero length count, the system issues an alarm (risk of producing a coil that is too long).
Selon un deuxième perfectionnement, la vitesse de rotation (Vp) correspondant au métrage final d'une bobine correctement bobinée et/ou la vitesse de rotation correspondant au diamètre maximal de la bobine supportée par le système de bobinage est préalableme-nt enregistrée (voir algorithme figure 7). Si la vitesse de rotation (Vd) mesurée après le redémarrage et/ou en cours de production, est inférieure ou égale, à une tolérance près, à la vitesse de rotation (Vp) correspondant au métrage final d'une bobine correctement bobinée et/ou à la vitesse de rotation correspondant au diamètre maximal supporté par le système de bobinage, on commande l'interruption du bobinage. Le système peut émettre une alarme signifiant que l'on a dépassé le diamètre maximal de la bobine.According to a second improvement, the speed of rotation (Vp) corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system is previously recorded (see algorithm figure 7). If the rotational speed (Vd) measured after restarting and / or during production is less than or equal, within one tolerance, to the rotational speed (Vp) corresponding to the final footage of a correctly wound coil and / or at the speed corresponding to the maximum diameter supported by the winding system, the winding is interrupted. The system may issue an alarm indicating that the maximum diameter of the coil has been exceeded.
Un contrôle supplémentaire peut utilement compléter le processus : Si la vitesse de rotation (Va) de la bobine immédiatement avant l'arrêt au métrage programmé est différente (en plus ou en moins), à la vitesse de rotation (Vp) correspondant au métrage final d'une bobine correctement bobinée, une alarme indique que le diamètre final de la bobine n'est pas conforme au diamètre final souhaité.An additional check can usefully complete the process: If the speed of rotation (Va) of the reel immediately before stopping at the programmed footage is different (more or less), at the speed of rotation (Vp) corresponding to the final footage of a correctly wound coil, an alarm indicates that the final diameter of the coil does not conform to the desired final diameter.
Par extension, on peut mémoriser au préalable, par exemple dans une table, la vitesse de rotation en fonction du métrage atteint pour une bobine correctement bobinée. Si la vitesse de rotation mesurée à tout moment du bobinage est différente (en plus ou en moins) à la vitesse de rotation correspondant au métrage atteint, à ce moment, pour une bobine correctement bobmée, une alarme signifie que l'évolution du diamètre de la bobine en cours de bobinage n'est pas conforme à l'évolution du diamètre souhaité. Selon l'invention, pour mesurer la vitesse de rotation de la bobineBy extension, it is possible to memorize beforehand, for example in a table, the speed of rotation as a function of the yardage achieved for a correctly wound coil. If the speed of rotation measured at any time of the winding is different (more or less) from the speed of rotation corresponding to the measurement reached, at this time, for a correctly wound coil, an alarm means that the evolution of the diameter of the coil during winding does not conform to the development of the desired diameter. According to the invention, to measure the speed of rotation of the coil
(2), le moyen de mesure (5) peut être constitué par exemple par un capteur magnétique, optique ou autre, délivrant une ou plusieurs impulsions par tour. La vitesse de rotation est déduite de la fréquence de ces impulsions ou du temps écoulé entre ces impulsions. Le dispositif comprend des moyens pour réaliser les mesures et les traitements exposés ci-dessus. Ces moyens peuvent être des cartes électroniques, circuits logiques, automates, ...(2), the measuring means (5) can be constituted for example by a magnetic, optical or other sensor, delivering one or more pulses per revolution. The speed of rotation is deduced from the frequency of these pulses or from the time elapsed between these pulses. The device comprises means for carrying out the measurements and the treatments described above. These means can be electronic cards, logic circuits, automata, ...
Ces moyens sont aptes à émettre les alarmes et peuvent générer un ou plusieurs signaux visuels ou sonores. Les alarmes peuvent être identifiées par la combinaison des différents signaux ou par les différents rythmes, fréquences ou codes de clignotement de ces signaux. Les alarmes peuvent être assujetties à un afficheur indiquant le motif de l'alarme. De même, ces alarmes peuvent être transmises par réseau vers un automate que présente la machine ou autre système de gestion de la production. A noter que les alarmes peuvent être combinées avec tout moyen de diagnostic, tels que des détecteurs de tension, des détecteurs de présence du fil, des détecteurs de défaut textile, et plus généralement par tout système de contrôle de la qualité de la production. Les différents traitements sont faits sur des cartes électroniques (automate par exemple) ou intégrés et/ou combinés avec d'autres moyens de diagnostic.These means are capable of emitting alarms and can generate one or more visual or audible signals. Alarms can be identified by the combination of different signals or by the different rhythms, frequencies or flashing codes of these signals. Alarms may be subject to a display showing the reason for the alarm. Likewise, these alarms can be transmitted by network to an automaton presented by the machine or another production management system. Note that the alarms can be combined with any diagnostic means, such as voltage detectors, wire presence detectors, textile fault detectors, and more generally by any production quality control system. The various treatments are carried out on electronic cards (PLC for example) or integrated and / or combined with other diagnostic means.
Les avantages ressortent bien de la description. The advantages are apparent from the description.

Claims

R E V E N D I C A T I O N SR E V E N D I C A T I O N S
-1- Procédé de rémitialisation du comptage de longueur des bobines de fil, caractérisé en ce que : - la vitesse de rotation obtenue avec la bobine vide étant préalablement enregistrée ; on mesure, après le démarrage, la vitesse de rotation de la bobine en formation qui correspond à la vitesse maximale atteinte à la fin de la phase d'accélération du démarrage et au début de la phase de ralentissement progressif consécutif de la phase de bobinage et on la compare avec celle obtenue lorsque la bobine est vide ; si la vitesse de rotation mesurée après le démarrage est sensiblement égale (ou supérieure) à la vitesse de rotation obtenue avec la bobine vide, alors on effectue la réinitialisation du comptage de longueur ; - si la vitesse après démarrage est sensiblement inférieure à la vitesse de rotation correspondant à un tube vide, alors on reprend le comptage là où il en était resté.-1- Method for resetting the counting of the length of the wire spools, characterized in that: - the speed of rotation obtained with the empty spool being previously recorded; after the start-up, the speed of rotation of the reel in formation is measured, which corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase, and it is compared with that obtained when the coil is empty; if the rotational speed measured after starting is substantially equal (or higher) to the rotational speed obtained with the empty spool, then the length counting is reset; - if the speed after start-up is significantly lower than the speed of rotation corresponding to an empty tube, then the counting is resumed where it remained.
-2- Procédé selon la revendication 1, caractérisé en ce que la réinitialisation du comptage est une simple remise à zéro.-2- Method according to claim 1, characterized in that the reset of the counting is a simple reset.
-3- Procédé selon la revendication 1, caractérisé en ce que, pour une précision de métrage améliorée, la réinitialisation est une remise du comptage à la longueur d'enroulement enregistrée pendant la phase d'accélération, estimée par exemple en comptant le nombre de rotations effectuées par le tube pendant cette phase. -4- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'on mesure la vitesse de rotation en permanence ou à intervalles réguliers en cours de production.-3- The method of claim 1, characterized in that, for improved measurement accuracy, the reset is a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations performed by the tube during this phase. -4- A method according to any one of claims 1 to 3, characterized in that the speed of rotation is measured continuously or at regular intervals during production.
-5- Procédé selon la revendication 4, caractérisé en ce que : on mémorise la vitesse de rotation mesurée immédiatement avant un arrêt de production. on mesure la vitesse de rotation après le redémarrage et on la compare, d'une part, avec la vitesse de rotation obtenue avec une bobine vide et, d'autre part, avec la vitesse mémorisée immédiatement avant l'arrêt, de sorte que : si la vitesse de rotation mesurée après le redémarrage est sensiblement égale à la vitesse de rotation obtenue avec la bobine vide, on effectue la réinitialisation du comptage de longueur ; - si la vitesse de rotation mesurée après le redémarrage est sensiblement égale à la vitesse de rotation obtenue immédiatement avant l'arrêt, on n'effectue pas la réinitialisation du comptage de longueur et on reprend le comptage là où il était resté ; si la vitesse de rotation mesurée après le redémarrage est inférieure à la vitesse de rotation obtenue avec la bobine vide est supérieure à la vitesse de rotation obtenue immédiatement avant, on n'effectue pas la réinitialisation du comptage de longueur et on reprend le comptage là où il était resté et on déclenche une alarme ;-5- The method of claim 4, characterized in that: the rotational speed measured immediately before a production stop is memorized. the speed of rotation is measured after restarting and it is compared, on the one hand, with the speed of rotation obtained with an empty reel and, on the other hand, with the speed memorized immediately before stopping, so that: if the rotational speed measured after restarting is substantially equal to the rotational speed obtained with the empty reel, the length counting is reset; - if the rotation speed measured after restarting is substantially equal to the rotation speed obtained immediately before stopping, the length counting is not reset and the counting is resumed where it had remained; if the rotational speed measured after restarting is lower than the rotational speed obtained with the empty reel is greater than the rotational speed obtained immediately before, the length counting is not reset and the counting is resumed where he had stayed and an alarm was triggered;
-6- Procédé selon la revendication 5, caractérisé en ce que, si la vitesse de rotation mesurée immédiatement avant l'arrêt est sensiblement égal à la vitesse de rotation obtenue avec la bobine vide, on effectue une réinitialisation du comptage de longueur et on déclenche une alarme. -7- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la vitesse de rotation correspondant au métrage final d'une bobine correctement bobinée et/ou la vitesse de rotation correspondant au diamètre maximum de bobine supporté par le système de bobinage, est enregistrée au préalable.-6- The method of claim 5, characterized in that, if the rotational speed measured immediately before stopping is substantially equal to the rotational speed obtained with the empty reel, a reset of the length counting is carried out and triggered an alarm. -7- A method according to any one of claims 1 to 6, characterized in that the speed of rotation corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to the maximum diameter of coil supported by the system of winding, is recorded beforehand.
-8- Procédé selon la revendication 7, caractérisé en ce qu'on mesure la vitesse de rotation en permanence ou à intervalles réguliers en cours de production.-8- The method of claim 7, characterized in that the rotational speed is measured continuously or at regular intervals during production.
-9- Procédé selon la revendication 8, caractérisé en ce qu'on mémorise la vitesse de rotation mesurée immédiatement avant un arrêt de production, de sorte que : si la vitesse de rotation mesurée après le redémarrage et/ou en cours de production est sensiblement inférieure ou égale à la vitesse de rotation correspondant au métrage final d'une bobine correctement bobinée et/ou la vitesse de rotation correspondant au diamètre maximum de bobine supporté par le système de bobinage, on commande l'interruption du bobinage et on déclenche une alarme.-9- The method of claim 8, characterized in that stores the rotational speed measured immediately before a production stop, so that: if the rotational speed measured after restarting and / or during production is substantially less than or equal to the speed of rotation corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system, the winding is interrupted and an alarm is triggered .
-10- Procédé selon la revendication 8, caractérisé en ce qu'on enregistre la vitesse de rotation correspondant au métrage final d'une bobine correctement bobinée et enregistrée au préalable, de sorte que, si la vitesse de rotation de la bobine immédiatement avant l'arrêt au métrage programmé est différente de la vitesse de rotation correspondant au métrage final, on déclenche une alarme.-10- The method of claim 8, characterized in that the speed of rotation corresponding to the final footage of a correctly wound coil and recorded beforehand is recorded, so that, if the speed of rotation of the coil immediately before l stopping at the programmed footage is different from the rotation speed corresponding to the final footage, an alarm is triggered.
-11- Procédé selon la revendication 10, caractérisé en ce qu'une table contenant la vitesse de rotation en fonction du métrage atteint est enregistrée au préalable pour une bobine correctement bobinée, de sorte que, si la vitesse de rotation mesurée à tout moment du bobinage est différente de la vitesse de rotation correspondant au métrage atteint au moment considéré pour une bobine correctement bobinée, on déclenche une alarme.-11- Method according to claim 10, characterized in that a table containing the speed of rotation as a function of the yardage achieved is recorded beforehand for a correctly wound coil, so that, if the speed of rotation measured at any time of the winding is different from the speed of rotation corresponding to the measurement reached at the time considered for a correctly wound coil, an alarm is triggered.
-12- Dispositif pour la mise en œuvre du procédé selon l'une quelconque des revendications 1 àll, caractérisé en ce qu'il comprend au moins un moyen apte à mesurer la vitesse de rotation de la bobine en délivrant une ou plusieurs impulsions par tour pour déduire, de la fréquence desdites impulsions ou du temps écoulé entre lesdites impulsions, la vitesse de rotation.-12- Device for implementing the method according to any one of claims 1 to 11, characterized in that it comprises at least one means capable of measuring the speed of rotation of the coil by delivering one or more pulses per revolution to deduce, from the frequency of said pulses or the time elapsed between said pulses, the speed of rotation.
-13- Dispositif selon la revendication^, caractérisé en ce qu'il comprend des moyens aptes à effectuer les différentes opérations et à déclencher les alarmes notamment sous forme d'un ou plusieurs signaux visuels et/ou sonores.-13- Device according to claim ^, characterized in that it comprises means capable of performing the various operations and triggering the alarms in particular in the form of one or more visual and / or audio signals.
-14- Dispositif selon la revendicationl3, caractérisé en ce que les moyens sont assujettis à un afficheur indiquant les causes de l'alarme.-14- Device according to claiml3, characterized in that the means are subject to a display indicating the causes of the alarm.
-15- Dispositif selon la revendication 13, caractérisé en ce que les moyens sont un calculateur, automate, carte électronique, circuit logique, éventuellement combinés ou intégrés avec d'autres moyens de traitement et/ou de diagnostic. -15- Device according to claim 13, characterized in that the means are a computer, automaton, electronic card, logic circuit, possibly combined or integrated with other processing and / or diagnostic means.
EP05728067A 2004-03-08 2005-02-18 Method for reinitializing count of thread reel length Not-in-force EP1737776B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450459A FR2867173B1 (en) 2004-03-08 2004-03-08 METHOD FOR RESETTING THE LENGTH COUNT OF WIRE COILS
PCT/FR2005/050106 WO2005092756A1 (en) 2004-03-08 2005-02-18 Method for reinitializing count of thread reel length

Publications (2)

Publication Number Publication Date
EP1737776A1 true EP1737776A1 (en) 2007-01-03
EP1737776B1 EP1737776B1 (en) 2008-04-09

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EP05728067A Not-in-force EP1737776B1 (en) 2004-03-08 2005-02-18 Method for reinitializing count of thread reel length

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US (1) US20070193052A1 (en)
EP (1) EP1737776B1 (en)
AT (1) ATE391691T1 (en)
DE (1) DE602005005977T2 (en)
FR (1) FR2867173B1 (en)
WO (1) WO2005092756A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011132616A (en) * 2009-12-22 2011-07-07 Toyota Industries Corp Device for estimating diameter of bobbin yarn in fine spinning frame, and method for estimating diameter of bobbin yarn
DE102014018635A1 (en) * 2014-12-13 2016-06-16 Saurer Germany Gmbh & Co. Kg Method and device for operating a workstation of a textile machine producing cross-wound bobbins

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Publication number Priority date Publication date Assignee Title
GB1495003A (en) * 1974-08-14 1977-12-14 Kdg Instr Ltd Method and apparatus for measuring length
DE2460252C2 (en) * 1974-12-19 1986-09-04 W. Schlafhorst & Co, 4050 Mönchengladbach Process for the production of textile bobbins with a given thread length
CH635300A5 (en) * 1979-04-10 1983-03-31 Zellweger Uster Ag METHOD AND DEVICE FOR OBTAINING PRE-DETERMINABLE AND ACCURATE YARN LENGTHS ON CROSS REELS.
US4373266A (en) * 1980-11-05 1983-02-15 Loepfe Brothers Limited Equipment for continuously measuring the length of an endless material being wound up into a circular package
GB8407465D0 (en) * 1984-03-22 1984-05-02 Rieter Ag Maschf Length control in winding of threads
CH675132A5 (en) * 1987-09-01 1990-08-31 Zellweger Uster Ag
EP0952245B1 (en) * 1998-03-27 2003-01-08 Murata Kikai Kabushiki Kaisha Individual-spindle-drive type multi-twister

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Title
See references of WO2005092756A1 *

Also Published As

Publication number Publication date
EP1737776B1 (en) 2008-04-09
DE602005005977T2 (en) 2009-05-28
FR2867173B1 (en) 2006-04-21
FR2867173A1 (en) 2005-09-09
DE602005005977D1 (en) 2008-05-21
US20070193052A1 (en) 2007-08-23
WO2005092756A1 (en) 2005-10-06
ATE391691T1 (en) 2008-04-15

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