EP0943575B1 - Procédé pour surveiller le paraffinage d'un fil en mouvement - Google Patents

Procédé pour surveiller le paraffinage d'un fil en mouvement Download PDF

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Publication number
EP0943575B1
EP0943575B1 EP98121067A EP98121067A EP0943575B1 EP 0943575 B1 EP0943575 B1 EP 0943575B1 EP 98121067 A EP98121067 A EP 98121067A EP 98121067 A EP98121067 A EP 98121067A EP 0943575 B1 EP0943575 B1 EP 0943575B1
Authority
EP
European Patent Office
Prior art keywords
friction
drum
bobbin
coil
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98121067A
Other languages
German (de)
English (en)
Other versions
EP0943575A2 (fr
EP0943575A3 (fr
Inventor
Ferdinand-Josef Dr.-Ing. Hermanns
Urs Prof. Dr. Meyer
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0943575A2 publication Critical patent/EP0943575A2/fr
Publication of EP0943575A3 publication Critical patent/EP0943575A3/fr
Application granted granted Critical
Publication of EP0943575B1 publication Critical patent/EP0943575B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
    • 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 a method according to the Preamble of the first claim.
  • the object of the present invention is to monitor the Paraffin application on a running thread with funds perform that already while monitoring the ongoing Winding operation can be used.
  • the spool is driven by friction through the Friction drum.
  • the friction force and thus that Drive torque on the coil depend on the winding technology parameters such as overlay compensation, yarn type, Bobbin mass, yarn preparation, etc.
  • sensors are attached in the coil frame with which the Angle of rotation and thus the angular velocity or Orbital period of the two rotating bodies is constantly determined become. This is usually used to determine what is going on the bobbin travel constantly changing diameter of the cheese. These sensors are also within the scope of the invention for Monitoring of the paraffin application used. The goes Invention based on the knowledge that if the Paraffinization of the surface of the surface by the traversing stroke Bobbin overlapping thread after a short time the friction behavior of the package surface significantly changed.
  • a very important measure for determining the friction behavior the surface of the package on the friction drum is the absolute size of the slip between the friction drum and Coil that is in the acceleration phases during image disturbance occurs. This can be determined by evaluating the Angular velocities and orbital periods of the Determine the friction drum and the package.
  • this To determine slip is the coil diameter, which is constantly changes during the bobbin trip, as in known ones and to calculate in the manner already mentioned above. This Calculation cannot during the acceleration phases be carried out during this time due to slip falsified diameter would be determined. For this reason the diameter of the coil in the acceleration-free Discontinued phases calculated and the course of the increase in Coil diameter on the basis of the previous Pre-calculated values for the acceleration phases. From the Difference between those adulterated by slip Coil diameter and the actual value of the The size of the slip in the coil diameter Determine slip phases quantitatively.
  • An improvement in the informative value with regard to the Paraffin application can also be achieved in that a Reference value by averaging the friction behavior of the Cross-wound bobbins at several winding positions is determined, one of which certain degree of a deviation as the absence of Paraffin order is defined.
  • the friction drum 10 is provided with a reverse thread groove 12 so that it at the same time as a traversing device for an in Arrow direction via a thread tension sensor 13 by a Thread eyelet 14 serves thread 15.
  • the thread 15 is on a coil sleeve 16 wound as a coil in a wild winding, so that a so-called cheese 17 is formed. Since the invention both in the manufacture of cylindrical packages and in Making tapered packages is applicable in Fig. 1 a cylindrical cheese 17 and in Fig. 2 a conical Cross-wound bobbin 17 'shown.
  • the coil sleeve 16 is held by means of two coil plates 18, 19, each with a cone 20, 21 non-positively in the open ends of the sleeve 16 intervene.
  • the bobbin 18, 19 with the sleeve 16 and thus rotating with the coil 17 are not in one Shown coil frame mounted, the one to the shaft 22nd the friction drum 10 parallel axis is pivotable.
  • the shaft 22 of the friction drum 10 is a sensor 23 assigned, which is designed, for example, as an angle encoder is.
  • the Coil plate 18 is assigned a sensor 24, which is also a a rotary encoder is formed. By means of this sensor the corresponding measured values of the coil 17 are determined.
  • the Signals from sensors 23 and 24 are in a control and Evaluation device 25 detected.
  • FIG. 3 shows an increase in diameter of approximately 0.75 mm in the range of a coil diameter of approximately 155.15 to approximately 155.9 mm in a period of approximately 17 seconds.
  • the lower sections 30 of this curve correspond to the run-down phases in which the drive motor 11 of the friction drum 10 is switched off, so that the friction drum 10 and the coil 17 run without slippage in the case of a cylindrical coil geometry.
  • the mentioned formula can therefore be used in these phase-out phases 30, so that the course of the curve shown in the phase-out phases 30 corresponds to the actual course of the increase in the coil radius r sp or here the coil diameter.
  • the coil 17 has a lower peripheral speed than the friction drum 10.
  • s o ⁇ r sp ) - ( ⁇ sp ⁇ r sp )] / ( ⁇ sp
  • s o )
  • the coil radius is calculated in the acceleration phases as the so-called falsified coil radius: r sp
  • r avail. r sp ⁇ ( ⁇ sp
  • s o / ⁇ sp ) ⁇ sp
  • the driven one changes Diameter at which the peripheral speeds of Friction drum and cheese coincide, fictitious at one Acceleration, as can be seen from Fig. 5.
  • the during the Acceleration phase (diameter increase 40) calculated Coil diameter is adulterated and is during phase 42 of the drive with slip is approximately constant.
  • To Switching off the friction drum reaches the fictitious Coil diameter the coil at point 43 again, and a real, driven diameter moves, proportional to the falling Speed of the friction drum, on the spool of the big one Towards the small diameter.
  • the driven diameter due to the acceleration-free Drive a so-called neutral diameter zone in which each reached diameter of the conical cheese is definable.
  • the calculation of a model can be used Compensation polynomial of nth degree.
  • model parameters Polynomial coefficients
  • Run-in phase can be determined.
  • the n parameter sets of the running-in cycles averaged and a simultaneous course created become. If you divide the measured adulterated Diameter value with the corresponding model diameter value, see above you get an equalized diameter curve. This course is the amount of the currently valid cone diameter corrected.
  • the time-variant compensation line 32 and the slip can be calculated, for example, in accordance with an evaluation device explained in FIG. 2.
  • the period durations measured by the sensors 23, 24 and thus also the angular velocity of the coil ⁇ sp and the friction drum ⁇ fw are entered into a quotient generator 33. Since the radius r fw of the friction drum 10 is constant, the quotient ⁇ fw to ⁇ sp is already representative of the coil radius r sp , so that multiplication by the radius r fw of the friction drum 10 can be dispensed with. However, this value cannot yet be used for slip determination, since it is dependent on the diameter.
  • This value is therefore entered into a linear filter 34, for example a Kaiman filter, to which the angular velocity ⁇ sp of the coil 17 'or 17 in FIG. 1 and the angular velocity ⁇ fw of the friction drum 10 are also input.
  • the diameter values or, in the case of the conical cheese, the calculated equalized curve are only made available to the filter in the phase-out phases of the image disturbance.
  • This linear filter 34 forms the time-variant compensating line 32.
  • the compensation radii are calculated in the slip-free phases. In the acceleration phases, the best-fit line is continued on the basis of its predetermined slope.
  • This compensation line 32 is input together with the signal of the quotient 33 into a subtraction device 35, which then specifies the speed-independent and diameter-independent slip, ie the slip which is independent of the winding process state.
  • v coil (t) (1 - s (t)) ⁇ v drum (t).
  • the values for the slip and the offset Entered as a point in a diagram creates narrowly limited ones Point clouds, their location and orientation provide information about the Quality of the respective disturbance cycle and thus of the slip result.
  • the state of the interference cycles is shown. As the diameter of the coil increases, so does the Point cloud.
  • the absolute position of the point cloud can be over the entire machine or batch, that is, between many individual units become. This will cause discrepancies that are due to waning or point out the missing paraffin application, even faster and better recognized.
  • Slip and friction force are also proportionally related. A drop in the slip can therefore be determined via the course of the friction force.
  • the friction force can be calculated from the drive torque acting on the coil.
  • the measurement of the slope ⁇ drum / ⁇ t can be carried out during normal production without any significant loss of production.
  • the drum drive need only be decoupled from the bobbin for a very short period of time (lifting of the cheese) and switched off.
  • the drum drive can be actively braked to avoid unnecessary loss of production. Since this loss moment is constant during a bobbin trip, the runout measurements need only be carried out after each process-related interruption of the bobbin operation.
  • the drive power is determined via the measured acceleration torques of the drum and spool.
  • coil p drive / ⁇ drum .
  • the determination of the friction torque generated via the friction force is based on the equation for the total drive power. However, the performances listed in this equation are not all applied through friction. So the pure drum drive power, the pure power to move the drum, has no influence on the package. The drive losses of the drum are also irrelevant for the frictional moment.
  • the friction slip creates during the acceleration phase the image disturbance taking into account the friction parameters of the Drum-coil system the friction force and thus that Drive torque on the coil. It is a direct dependency of the winding technology parameters such as support compensation, Yarn type, bobbin mass, yarn preparation, etc. can be seen.
  • the focus and the scatter to determine and use the point cloud. 8 is the influence of the paraffin application can be clearly seen. Without one Having to localize the point cloud alone can about the slope of the point cloud in the slip-friction force diagram the quality of the paraffin application be determined.
  • the slope of the point cloud of the non-waxed yarn is 4.2 N /%, that of waxed yarn 0.63 N /%.
  • the method according to the invention Monitoring the paraffin application can be very safe be considered as the preparation of the yarn, the Paraffin application, direct influence on the coefficient of friction ⁇ des Exerts friction drive.
  • a thread tension sensor 13 is present at the winding point, can these have a connection to the evaluation device 25, so that changes in thread tension in slip detection can be taken into account. This will make one of the most important influencing factors that have no relation to the coefficient of friction the cheese have eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Winding Filamentary Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (9)

  1. Procédé pour surveiller le paraffinage d'un fil en mouvement (15) sur une tête de bobinage d'une machine textile fabriquant des bobines à spires croisées (17), sur laquelle la bobine à spires croisées est entraínée au niveau de son pourtour par un cylindre de friction (10), sachant que l'entraínement du cylindre de friction pour éviter la formation de zones parallèles est mis en marche et stoppé à intervalles réguliers de manière à ce que se succèdent des phases d'accélération (31) avec patinage entre le cylindre de friction et la bobine et des phases où la bobine court sur son erre (30) sans patiner, caractérisé en ce que l'on surveille le comportement de la surface de la bobine à spires croisées (17) frottant contre le cylindre de friction (10) pendant le parcours de la bobine, en ce que, pour ce faire, on détermine et on analyse des grandeurs proportionnelles au coefficient de friction en relevant en continu les vitesses angulaires (ωSP ; ωFW) du cylindre de friction et de la bobine à spires croisées, en ce que l'on compare ces valeurs au tracé attendu sur l'ensemble du parcours de la bobine, et en ce que l'on considère des écarts significatifs par rapport à ce tracé comme une absence de paraffinage.
  2. Procédé selon la revendication 1, caractérisé en ce qu'en cas d'absence avérée de paraffinage, la tête de bobinage est stoppée.
  3. Procédé selon la revendication 2, caractérisé en ce qu'en outre un signal est produit pour prévenir l'opérateur.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on détermine et on analyse le patinage entre la bobine à spires croisées (17) et le cylindre de friction (10) en tant que grandeur proportionnelle au coefficient de friction.
  5. Procédé selon la revendication 4, caractérisé en ce que l'on détermine la force de friction au moyen du couple moteur transmis par le cylindre de friction (10) à la bobine à spires croisées (17), qui est relevée en tant que fonction du patinage et utilisée pour évaluer le comportement sous friction de la surface de la bobine à spires croisées.
  6. Procédé selon la revendication 5, caractérisé en ce que l'on mesure pendant les phases de rotation sur l'erre exemptes de patinage les pertes de couple et les moments de charge agissant sur le système d'entraínement cylindre de friction (10) / bobine à spires croisées (17), et en ce que l'on en tient compte lorsque l'on détermine la force de friction.
  7. Procédé selon la revendication 4, caractérisé en ce que l'on mesure la force de traction du fil et en ce que l'on débarrasse l'ampleur du patinage de variations de la force de traction du fil pendant le parcours de la bobine.
  8. Procédé selon la revendication 4, caractérisé en ce que le décalage d'enroulement du fil qui correspond à un déplacement d'un point d'inversion du fil enroulé sur une ligne circonférentielle de la bobine (17) par rapport au point d'inversion précédent est calculé comme une fonction du patinage et est utilisé pour interpréter le comportement sous friction de la surface de la bobine à spires croisées sur le cylindre de friction (10).
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que le comportement sous friction de la surface des bobines à spires croisées (17) sur les cylindres de friction (10) est établi sur un nombre de têtes de bobinage prédéfini du bobinoir et sert de base de comparaison pour le comportement sous friction sur chacune des têtes de bobinage.
EP98121067A 1997-12-20 1998-11-06 Procédé pour surveiller le paraffinage d'un fil en mouvement Expired - Lifetime EP0943575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757009A DE19757009A1 (de) 1997-12-20 1997-12-20 Verfahren zur Überwachung des Paraffinauftrags auf einen laufenden Faden
DE19757009 1997-12-20

Publications (3)

Publication Number Publication Date
EP0943575A2 EP0943575A2 (fr) 1999-09-22
EP0943575A3 EP0943575A3 (fr) 2000-05-10
EP0943575B1 true EP0943575B1 (fr) 2003-05-21

Family

ID=7852828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121067A Expired - Lifetime EP0943575B1 (fr) 1997-12-20 1998-11-06 Procédé pour surveiller le paraffinage d'un fil en mouvement

Country Status (4)

Country Link
US (1) US6039282A (fr)
EP (1) EP0943575B1 (fr)
JP (1) JPH11240674A (fr)
DE (2) DE19757009A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915529A1 (de) * 1999-04-07 2000-10-12 Schlafhorst & Co W Vorrichtung zum Wickeln konischer Spulen bei konstanter Fadenliefergeschwindigkeit
US20040098962A1 (en) * 2002-11-25 2004-05-27 Giuliano Sostegni Apparatus for the production of chenille
DE10321774A1 (de) * 2003-05-15 2004-12-02 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Spulstelle einer Kreuzspulen herstellenden Textilmaschine
DE102010002301A1 (de) * 2010-02-24 2011-08-25 SSM Schärer Schweiter Mettler AG Garnschlichtverfahren
JP2014040325A (ja) * 2012-07-27 2014-03-06 Murata Mach Ltd 駆動状態検出装置、巻取ユニット、巻取機、紡績ユニット及び紡績機
DE102012023558A1 (de) * 2012-12-01 2014-06-05 Saurer Germany Gmbh & Co. Kg Verfahren zum Regeln der Beschleunigung einer Spulenantriebswalze
DE102012023557A1 (de) * 2012-12-01 2014-06-05 Saurer Germany Gmbh & Co. Kg Verfahren zum Steuern der Beschleunigung einer Spulenantriebswalze
DE102013016644A1 (de) * 2013-10-05 2015-04-09 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
CN111549462A (zh) * 2020-04-29 2020-08-18 山东宏业纺织股份有限公司 一种纱线涂覆装置
DE102021120371A1 (de) * 2021-08-05 2023-02-09 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine mit folientransporteinrichtung sowie verfahren

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
CH661594A5 (de) * 1982-11-16 1987-07-31 Pretema Ag Verfahren und vorrichtung zum feststellen des reibungsverhaltens von langgestreckten gebilden, insbesondere von garnen.
DE3521152C2 (de) * 1985-06-13 1996-05-30 Schlafhorst & Co W Verfahren und Vorrichtung zum Vermeiden von Bildwicklungen beim Wickeln einer Kreuzspule
DE3703869C2 (de) * 1987-02-07 1996-12-12 Schlafhorst & Co W Verfahren zum Überwachen und/oder Steuern des Spulvorgangs und Spulstelle zum Ausführen des Verfahrens
DE3916918A1 (de) * 1989-05-24 1990-11-29 Schlafhorst & Co W Verfahren und vorrichtung zum vermeiden von bildwicklungen beim wickeln einer kreuzspule
DE4001793C1 (en) * 1990-01-23 1991-03-07 Wilhelm Hegenscheidt Gmbh, 5140 Erkelenz, De Ascertaining slip between railway wheel and drive friction roller - applying latter to bogie during machining for re-profiling
DE4010469A1 (de) * 1990-03-31 1991-10-02 Schlafhorst & Co W Verfahren und einrichtung zum ueberwachen der paraffinierung eines laufenden fadens
DE4030892C2 (de) * 1990-09-29 2000-06-29 Schlafhorst & Co W Spuleinrichtung an einer Textilmaschine
DE4226265A1 (de) * 1992-08-08 1994-02-10 Schlafhorst & Co W Paraffiniereinrichtung
DE19547870A1 (de) * 1995-12-21 1997-06-26 Schlafhorst & Co W Verfahren und Vorrichtung zur Überwachung der Funktion einer Paraffiniereinrichtung
DE19625513A1 (de) * 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen von Kreuzspulen
DE19625510A1 (de) * 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen einer Spule
DE19633256C1 (de) * 1996-08-17 1997-10-09 Mayer Textilmaschf Vorrichtung zum Einstellen der Zugspannung eines Fadens bei dessen Ab- oder Aufwicklung von einer bzw. auf eine Spule

Also Published As

Publication number Publication date
US6039282A (en) 2000-03-21
DE19757009A1 (de) 1999-06-24
EP0943575A2 (fr) 1999-09-22
JPH11240674A (ja) 1999-09-07
DE59808452D1 (de) 2003-06-26
EP0943575A3 (fr) 2000-05-10

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