EP0893516B1 - Procédé et appareil pour identifier des matières étrangères selon leur lieu de provenance dans des balles de fibres, en particulier balles de coton - Google Patents

Procédé et appareil pour identifier des matières étrangères selon leur lieu de provenance dans des balles de fibres, en particulier balles de coton Download PDF

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Publication number
EP0893516B1
EP0893516B1 EP98810542A EP98810542A EP0893516B1 EP 0893516 B1 EP0893516 B1 EP 0893516B1 EP 98810542 A EP98810542 A EP 98810542A EP 98810542 A EP98810542 A EP 98810542A EP 0893516 B1 EP0893516 B1 EP 0893516B1
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EP
European Patent Office
Prior art keywords
opening
opening device
bales
foreign matter
determined
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Expired - Lifetime
Application number
EP98810542A
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German (de)
English (en)
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EP0893516A1 (fr
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Jossi Holding AG
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Jossi Holding AG
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • D01G31/003—Detection and removal of impurities
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B3/00—Mechanical removal of impurities from animal fibres
    • D01B3/02—De-burring machines or apparatus
    • D01B3/025—Removing pieces of metal

Definitions

  • the invention relates to a method and an apparatus for Identify the location-related origin of foreign substances in Fiber bales, especially cotton bales, after their excretion.
  • Methods and devices of this type are used for example in the blow room of a spinning mill, where from cotton bales with the help of a milling machine Removal device continuously removes fibers or flakes and fed to the further processing process.
  • Impurities contained in the fiber bales e.g. Plastic films, cords, tapes, etc. must be recognized and be eliminated.
  • This object is achieved according to the invention solved with a method that the features in claim 1 has.
  • the removed fibers are thereby preferably pneumatically from the removal device to the separating device transported. Other transportation devices such as. In principle, however, conveyor belts would also be possible.
  • the identification of the position of a foreign substance is made possible by the fact that the relative position of the removal device on the one hand and the transport time of the fibers between the removal device and the separating device in each Relative position is determined on the other hand, being in an elimination process taking into account the sizes mentioned on the position of the removal device at the time of Removal of the foreign substance is closed and furthermore the determined removal position of the foreign matter on the fiber bale is saved as a signal.
  • the determination of the transport time is given for a Transport speed preferably at different reference positions the removal device made empirically and stored in a computer, based on the reference values a transport time by interpolating each relative position is assigned.
  • the empirical determination of the Transport time can e.g. by doing that on a Reference position of the transport device an impurity is fed and that the time until the response Excretion device is measured.
  • the transportation time could be different be determined.
  • the path between the Removal device and the separator at each Relative position of the removal device is known. Through continuous The transport speed can be measured in this way Also determine the transport time for each relative position.
  • the removal device is advantageous on different horizontal planes linearly over at least one bale template consisting of several fiber bales advanced, the Relative position of the removal device in relation to the feed path and / or with respect to the horizontal plane with at least a position sensor is determined.
  • the blow room usually become bale feeds of 20 meters or more formed over which the bale cutter runs continuously and move to a deeper horizontal after each pass Level.
  • the Machine position both in relation to the linear feed distance, as well as related to the horizontal removal level be identified.
  • the relative position of the removal device is particularly advantageous at least in relation to the feed distance with a Distance meter determines the distance of the ablation device to a fixed measuring point.
  • the Distance meter has the advantage that it is complete is independent of the machine data of the removal device.
  • the relative position of the removal device can be different Spatial axes can be determined and from this data can be applied to the the respective position of the machine on the bale template is closed become. Of course, it would also be conceivable based on the machine's own control data close relative position of the removal device.
  • the method is used particularly advantageously in such a way that the number of knockouts for multiple horizontal Levels determined based on the removal position of the foreign substance and is preferably represented as a diagram. So can, for example, be loaded with numerous foreign substances Bales after just a few horizontal passes of the Bale milling machine can be identified and eliminated.
  • the invention also relates to an identification device the location-related origin of foreign substances in one or in several fiber bales, which by the features in the claim 6 is marked.
  • the functional features have already been discussed in connection with the procedure.
  • the distance measuring device With the distance measuring device according to the characteristic of claim 7, it is particularly advantageously a stationary one Laser measuring device, which is arranged on the removal device Reflecting surface is directed.
  • Such distance measuring devices are from other technical fields, e.g. known from land surveying and it can be used Determine distances very precisely.
  • the device can be used on all in the Blow room known bale removal systems are used. So can one removal device several separate Work areas must be assigned to each work area a signal to identify the work area can be generated. However, several removal devices can also be used each with a transport device with the same separation device be connected, on each ablation device a signal to identify the person working Removal device can be generated.
  • one known per se can be Removal device 1 on a feed path 5 over a Bale template 26 consisting of several individual bales 27 advance.
  • the removal device has a cantilever arm 2, on the removal rollers 3, 3 'for removing the cotton fibers are arranged.
  • the details of such Removal devices are known to the person skilled in the art and are therefore not described in detail here.
  • the removed fibers are fed to a transport channel 8, which extends over the entire feed path 5.
  • a transport channel 8 which extends over the entire feed path 5.
  • pneumatic conveying means not shown here the fibers reach a via a connection point 19 another transport channel 9 to the separating device 10.
  • the feed section 5 has a distance of 20, for example Meters.
  • the relative position of the removal device 1 and thus the Position on the feed path 5 is determined by means of a distance measuring device 7 measured continuously. It is about a laser measuring device which is fixedly arranged on the wall 6 and that is directed to a reflector 4 on the removal device 1 is.
  • the reflector 4 ' is used for position measurement boom rotated 180 ° when working a second one Bales.
  • the measuring device 7 supplies its data via a Position data line 37 to a computer 20. Simultaneously can also the removal device 1 machine-specific data Deliver to the computer 20 via a machine data line 38. These data relate to the operating state of the removal device, especially with a swiveling extension arm 2 for double-sided operation also the rotary position or orientation of the cantilever arm.
  • the separating device already known from WO96 / 35831 10 is provided on the input side with a condenser 11 on which the fibers are separated from the transport air. From the condenser the fibers enter a presentation channel 12, where they pass through a sensor field in bulk. Via an air feed 18 is the transport of the fibers in the presentation channel 12 supports. The fibers are on the sensor field illuminated by lighting fixtures 14, 14 'and by both Pages ago with a line camera 13, 13 'above deflecting mirror 15, 15 'acted upon. There is one below the sensor field Excretion flap 16 arranged, which when determining a The contaminated fiber material flow into a collecting container 17 redirects. The determined elimination processes are also via a separation data line 39 Computer 20 supplied.
  • the computer 20 has an auxiliary memory 21 which a data input 22 with machine-specific data of the Removal device and the discharge device loaded can be.
  • a data input 22 with machine-specific data of the Removal device and the discharge device loaded can be.
  • empirically determined ones can be found here Transport times between the removal device and the separating device be entered, which the computer then for example linearly interpolated.
  • the computer 20 works on the principle of a shift register, since it only keeps the reported position data for as long must store how the longest possible transport time takes.
  • the computer also has a memory 23 for storing the determined removal positions at Elimination of a foreign substance 28.
  • the collected in the memory 23 Data can be viewed and / or viewed on a screen 24 printed on a printer 25 in any form become.
  • the removal device moves during operation of the system for example in the direction of arrow a, the removal rollers 3, 3 'Spread the entire bale template 26 and flakes erode.
  • the transport route is reduced between the removal device 1 and the separating device 10 and thus also the transfer time of the removed Fibers or foreign substances.
  • Any relative position of the removal device 1 along the feed path 5 can be a specific one Transfer time can be assigned.
  • the actual relative position at the time of excretion is via the distance measuring device 7 is determined and the data obtained in this way are used in Computer 20 in a retirement to the position of Removal device closed at the time of removal.
  • Figures 2 and 3 illustrate arrangements as shown in a blowroom are often given.
  • Work according to Figure 2 two ablation devices 1A and 1B in parallel next to each other.
  • the cantilever arm 2 of each device can be used on both sides, wherein the removal device 1A the working areas A and B and the removal device 1B the work areas C and D can work through.
  • Each removal device is a separate one Distance measuring device 7a and 7b assigned. Both cutters however, the removed fibers lead to one common separation device 10.
  • the computer 20 according to Figure 1 therefore still requires an additional signal, on the one hand the removal device and on the other hand the processed area identified.
  • the separation device 10 removes foreign matter freed fibers passed to mixer 29, 29 '.
  • the Elimination device 10 must be arranged in front of the mixers be because otherwise a tracing the position of a Foreign matter in bales is practically no longer possible.
  • the system according to FIG. 3 only works with a removal device 1, the extension arm 2, however, the work areas A, B, C, D can coat.
  • the Computer sends a signal to identify the respective work area.
  • Both in the system according to Figure 2, and in The system according to FIG. 3 can be moved from a work area as often as required be switched to another.
  • the one necessary statistics files are automatically generated from the Start and end of work, as well as from the corresponding Work area signal formed.
  • the position of the foreign substances determined is shown in FIG shown in a diagram.
  • the relative position is on the abscissa of a foreign substance related to the feed distance applied between 0 and 20 meters.
  • the ordinate shows that Number of excretions determined, for example on the left scale, for example, after about 6 hours and on the right-hand scale, for example, after -24 hours.
  • the first curve 30 is assigned to the left scale and already shows clearly a specific position of the bale template between 5 and 6 Meters, which is heavily contaminated.
  • Figure 1 corresponds this the bale 27 with numerous foreign substances 28, which now be removed with each pass of the bale cutter.
  • the supervisor can decide the appropriate bale from the Remove bale template to avoid the production line unnecessarily burdened with contaminated material.
  • the second curve 31 in FIG. 4 is assigned to the right scale and now shows the extreme pollution with high accuracy of the bale in question after approx. 24 hours of operation the removal device. At this point around 180 Eliminations registered, compared to significantly fewer excretions in the other areas of the feed line.
  • Figure 5 shows an alternative embodiment of a Removal device, in which not only the relative position based on the feed path 5, but also related to the horizontal level by means of a distance measurement can be determined.
  • the relative position on the feed path 5, as in the exemplary embodiment according to FIG the distance measuring device 7 is determined.
  • On the vertically movable Cantilever arm 2 is, however, a second reflector 33 arranged. This reflects the measuring beam from a second one Distance measuring device 32 via a deflecting mirror 34 the lower the boom arm 2 is, the larger it is evidently the measuring section on the second measuring device 32. Together with the signal from the first distance measuring device 7 can refer to the relative position of the cantilever arm 2 the horizontal plane will be closed.
  • mount the distance measuring devices directly on the To arrange removal device 1 and the reflectors to be placed in a fixed position. The range finders needed however, own cable routing on the machine and it there would be an increased risk of contamination.
  • Figure 6 finally shows yet another alternative a position measurement.
  • the removal device 1 is included two switching sensors 36, 36 'provided an incremental scale 35 optically scanned on the feed line. This incremental scale could, for example, hit the ground are painted on, with the individual increments several could be centimeters wide. Other sensors, inductive Sensors and the like are a matter of course conceivable.
  • the relative position on the feed path could also be measured with a cable, for example is coupled to the removal device 1.
  • An essential one In any case, one aspect of the measuring device is that completely independent of the control of the bale cutter works because the milling machine's own position data is often not are accessible. An autonomous measuring system can therefore be used on everyone any removal device can be used, even if whose specific operating data are not accessible.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (10)

  1. Procédé pour identifier l'origine, en terme de position, de corps étrangers (28) dans des balles de fibres, en particulier dans des balles de coton, après leur élimination, selon lequel à partir d'au moins une alimentation en balles (26) formée de plusieurs balles de fibres (27), les fibres sont enlevées à l'aide d'un dispositif d'enlèvement (1) déplacé par rapport à l'alimentation en balles et sont amenées par un dispositif de transport (8, 9) de préférence pneumatique jusqu'à un dispositif d'élimination (10) qui élimine les corps étrangers, étant précisé qu'on calcule la position relative du dispositif d'enlèvement (1) et le temps de transport des fibres entre celui-ci et le dispositif d'élimination (10) dans chaque position relative, que lors d'une opération d'élimination, on déduit la position du dispositif d'enlèvement (1) au moment de l'enlèvement du corps étranger (28), en tenant compte des grandeurs mentionnées, et que la position d'enlèvement calculée du corps étranger au niveau de l'alimentation en balles est également mise en mémoire sous la forme d'un signal.
  2. Procédé selon la revendication 1, caractérisé en ce que le temps de transport, pour une vitesse de transport donnée, est calculé empiriquement au niveau de différentes positions de référence du dispositif d'enlèvement (1) et est mise en mémoire dans un ordinateur (20), et en ce que, à partir des valeurs de référence, un temps de transport est attribué par interpolation à chaque position relative.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le dispositif d'enlèvement (1) est avancé linéairement sur différents plans horizontaux au-dessus de l'alimentation en balles (26), et en ce que la position relative du dispositif d'enlèvement est calculée avec au moins un capteur de position par rapport à la course d'avance (5) et/ou au plan horizontal.
  4. Procédé selon la revendication 3, caractérisé en ce que la position relative du dispositif d'enlèvement (1) est calculée au moins par rapport à la course d'avance (5) à l'aide d'un télémètre (7) qui mesure la distance entre le dispositif d'enlèvement et un point de mesure fixe.
  5. Procédé selon la revendication 3 ou 4, caractérisé en ce que le nombre d'opérations d'élimination est calculé pour plusieurs plans horizontaux par rapport à la position d'enlèvement du corps étranger et est représenté de préférence sous forme de diagramme.
  6. Dispositif pour identifier l'origine, en terme de position, de corps étrangers (28) dans des balles de fibres, en particulier dans des balles de coton, après leur élimination, comprenant
    un dispositif d'enlèvement (1) mobile par rapport à la balle de fibres, pour enlever les fibres,
    un dispositif d'élimination (10) pour éliminer des corps étrangers (28) contenus dans les fibres et détectés par des capteurs,
    un dispositif de transport (8, 9) de préférence pneumatique pour transporter sous forme de courant de matière fibreuse jusqu'au dispositif d'élimination les fibres enlevées,
    au moins un capteur de position (7) pour déterminer la position relative du dispositif d'enlèvement (1),
    au moins un ordinateur (20) pour déterminer la position relative du dispositif d'enlèvement (1), lors d'une opération d'élimination, en tenant compte du temps de transport entre l'enlèvement et l'élimination d'un corps étranger (28),
    et une mémoire de données (23) pour mémoriser la position d'enlèvement déterminée.
  7. Dispositif selon la revendication 6, caractérisé en ce que le dispositif d'enlèvement (1) est mobile linéairement sur différents plans horizontaux sur une alimentation en balles (26), et en ce que le capteur de position est un télémètre à l'aide duquel la distance entre le dispositif d'enlèvement et un point de mesure fixe peut être mesurée au moins par rapport à la course d'avance linéaire (5).
  8. Dispositif selon la revendication 7, caractérisé en ce que le télémètre (7) est un appareil de mesure au laser fixe qui est dirigé vers une surface de réflexion disposée sur le dispositif d'enlèvement (1).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que plusieurs zones de travail (A, B, C, D) séparées les unes des autres sont associées à un dispositif d'enlèvement (1), et en ce que dans chaque zone de travail, un signal peut être généré pour identifier la zone de travail.
  10. Dispositif selon l'une des revendications 7 à 9, caractérisé en ce que plusieurs dispositifs d'enlèvement (1A, 1B) sont reliés par des dispositifs de transport respectifs au même dispositif d'élimination (10), et en ce qu'au niveau de chaque dispositif d'enlèvement, un signal peut être généré pour identifier le dispositif d'enlèvement.
EP98810542A 1997-07-07 1998-06-15 Procédé et appareil pour identifier des matières étrangères selon leur lieu de provenance dans des balles de fibres, en particulier balles de coton Expired - Lifetime EP0893516B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH164497 1997-07-07
CH164497 1997-07-07
CH1644/97 1997-07-07

Publications (2)

Publication Number Publication Date
EP0893516A1 EP0893516A1 (fr) 1999-01-27
EP0893516B1 true EP0893516B1 (fr) 2002-10-09

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EP98810542A Expired - Lifetime EP0893516B1 (fr) 1997-07-07 1998-06-15 Procédé et appareil pour identifier des matières étrangères selon leur lieu de provenance dans des balles de fibres, en particulier balles de coton

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US (1) US5933921A (fr)
EP (1) EP0893516B1 (fr)
DE (1) DE59805879D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103640B1 (fr) * 1999-11-24 2004-03-03 Maschinenfabrik Rieter Ag Ligne de nettoyage sélective
US6789039B1 (en) * 2000-04-05 2004-09-07 Microsoft Corporation Relative range camera calibration
DE102005013076A1 (de) * 2005-03-18 2006-10-05 TRüTZSCHLER GMBH & CO. KG Vorrichtung zum Abtragen des Fasergutes von Textifaserballen aus Spinngut, z. B. Baumwolle, Chemiefasern und dgl.
CH710258A1 (de) * 2014-10-16 2016-04-29 Rieter Ag Maschf Ballenöffner.
DE102015122807A1 (de) * 2015-12-23 2017-06-29 Temafa Maschinenfabrik Gmbh Faserbearbeitungsanlage sowie Verfahren zum Öffnen und Mischen von Fasermaterial in einer Faserbearbeitungsanlage
CH712367A1 (de) * 2016-04-15 2017-10-31 Rieter Ag Maschf Verfahren zur Kalibrierung der Aufliegekraft eines Abtragorgans eines Ballenöffners und Ballenöffner.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644535A1 (de) * 1986-12-24 1988-07-14 Truetzschler & Co Verfahren und vorrichtung zum erkennen von fremdkoerpern wie fremdfasern, bindfaeden, kunststoffbaendchen, draehten o. dgl. innerhalb von bzw. zwischen textilfaserflocken
JPH0382828A (ja) * 1989-08-28 1991-04-08 Tatsumi Eyaa Eng:Kk 原綿中の異物の検出装置
JPH0525713A (ja) * 1991-05-17 1993-02-02 Murata Mach Ltd 混打綿工程の異物検出装置
DE59406997D1 (de) * 1993-08-12 1998-11-05 Rieter Ag Maschf Verfahren und Vorrichtung zur Behandlung von Fremdkörpern bei der Ballenabtragung
DE29604552U1 (de) * 1995-05-05 1996-05-23 Truetzschler Gmbh & Co Kg Vorrichtung in einer Spinnereivorbereitungseinrichtung (Putzerei) zum Erkennen und Ausscheiden von Fremdstoffen, z.B. Gewebestücke, Bänder, Schnüre, Folienstücke, in bzw. aus Fasergut

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DE59805879D1 (de) 2002-11-14
EP0893516A1 (fr) 1999-01-27
US5933921A (en) 1999-08-10

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