EP0696332B1 - Procede d'ourdissage de fils - Google Patents

Procede d'ourdissage de fils Download PDF

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Publication number
EP0696332B1
EP0696332B1 EP94911182A EP94911182A EP0696332B1 EP 0696332 B1 EP0696332 B1 EP 0696332B1 EP 94911182 A EP94911182 A EP 94911182A EP 94911182 A EP94911182 A EP 94911182A EP 0696332 B1 EP0696332 B1 EP 0696332B1
Authority
EP
European Patent Office
Prior art keywords
warp
warping
feed
feed speed
speed
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
EP94911182A
Other languages
German (de)
English (en)
Other versions
EP0696332A1 (fr
Inventor
Josef Lenzen
Herbert Wisniewski
Josef Heuermann
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
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 Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to EP96117316A priority Critical patent/EP0774537B1/fr
Publication of EP0696332A1 publication Critical patent/EP0696332A1/fr
Application granted granted Critical
Publication of EP0696332B1 publication Critical patent/EP0696332B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/12—Variable-speed driving mechanisms
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D02H3/02—Sectional warpers

Definitions

  • the invention relates to a method for warping threads according to the preamble of claim 1.
  • a method for warping threads on a warping drum of a warping machine is known from DE-OS 37 02 293.
  • a warping mechanism is shifted relative to the warping drum as a function of the increasing winding thickness by scanning the winding circumference from a sensing element when the warping drum is at a standstill while the first band is being warmed with a predetermined warping carriage feed, and thereby adjusting its path during a measuring winding phase as a function of the number of revolutions the warping drum is measured. Then, when the remainder of the first warping belt is warmed and after the measuring roll has been copied when the subsequent belts are warmed, the advance of the warping carriage when the rest of the subsequent belts are warmed is corrected in accordance with the measured adjustment path.
  • a base winding with a predetermined warping carriage feed warmed and its winding circumference scanned by the feeler, the adjustment of which is measured depending on the number of revolutions.
  • the feeler element is then adjusted in accordance with the adjustment path measured when the base winding is warmed and a corrected feed provided for the rest of the first band is determined from the difference between the measured adjustment path in the measurement winding and the measured adjustment path in the base winding. All other warping belts are warmed like the first band with regard to the base and measuring roll with the specified feed and the remaining roll with the corrected warping carriage feed.
  • the disadvantage of the known method is that a stepped winding is created due to the three-part structure of the first warping belt.
  • Another disadvantage is that although the corrected feed value is already known, the subsequent windings must be wound in the same way, i.e. also with the base and measuring windings with the originally specified warping carriage feed, in order to ensure that all subsequent warping belts have the same structure.
  • the invention has for its object to provide a method for warping threads on a warping drum, in which a step winding structure is avoided and in which subsequent warp belts can be wound with the corrected warping feed once determined.
  • the invention advantageously provides that the warping can take place fully automatically from the beginning and without loss of material.
  • a start and a learning phase are planned at the beginning of the warping process.
  • an initial value for the feed rate depending on the warp parameters e.g. the total number of threads of the warp width and the thread number.
  • This preliminary, theoretically determined feed speed value is used as the feed speed signal at least for the first rotation of the warping drum.
  • the learning phase begins either with the start phase or after the start phase, with the application thickness of the warping belt being measured continuously without contact in the learning phase by holding an application thickness measuring device at a predetermined, essentially constant distance from the surface of the warping belt being wound up.
  • the essentially constant distance from the surface of the thread sheet is required in order to keep the application thickness measuring device in its optimal measuring distance from the surface of the warping belt, since an extremely precise distance measurement is important.
  • the application thickness can be determined from the signals of the application thickness measuring device and, depending on the application thickness, the feed speed can be regulated at the earliest from the second rotation of the warping drum.
  • the duration of the learning phase depends on the stabilization of the feed speed signals specified by the control. This stabilization occurs depending on Yarn quality after a different number of turns, e.g. after about 30 turns. If the control has been stabilized to a certain extent, a predetermined number of feed speed signals received last is used to determine a constant feed speed signal valid for the working phase of the warping process. The entire remaining warping process is carried out at this feed rate determined in the learning phase.
  • the maximum correction of the feed rate signal per measuring cycle of the application thickness measuring device is limited at the beginning of the learning phase. This prevents the control from rocking.
  • the feed rate signal is then corrected in several steps in the same direction, if necessary, so that a strong overshoot of the feed rate signals by the correct feed rate value is avoided.
  • a laser light distance measuring device is used as the coating thickness measuring device.
  • a measuring device with a high resolution of the measured values is required.
  • the contactless distance measurement with the laser enables a resolution of approx. 30 ⁇ m.
  • the constant feed rate signal in the working phase is set to the mean value of the feed rate signals obtained in a predetermined number of measuring cycles in the learning phase if the maximum feed rate signals in the learning phase also fell below a predetermined maximum fluctuation range becomes.
  • the switchover from the learning phase to the working phase therefore takes place when the standard deviation, for example the last 10 or 20 feed speed signals, falls below a predetermined maximum limit value.
  • the constant feed speed signal is fed back to the control at the beginning of the working phase in order to determine the number of turns required to maintain the warp length set on the warping machine and to transmit an exact count signal for the current warping process to the motor control which ensures compliance with the exact Warp length guaranteed.
  • a preset number of turns can be corrected if necessary.
  • the control system can issue a warning signal if the capacity is exceeded. If the order size is exceeded, the warping machine can be switched off automatically.
  • the cone warping machine 1 has a warping drum 2 with a cylindrical part 3 and a cone part 4.
  • the warping drum 2 is supported in bearings 6 by a base frame 7.
  • the base frame 7 is designed as a carriage and can be moved back and forth on rails 9 by means of the running wheels 8.
  • a motor 11 with a rotary pulse generator drives the shaft 5 and thus the warping drum 2 by means of a transmission element 12 and a belt wheel 13, a brake 14 being provided for a brake disk 15. With 16 the traction motor is designated.
  • Another motor 17 drives a threaded lead screw 18, from which a support 20 can be pushed back and forth along the warping drum 2 by means of a spindle nut 19.
  • the support 20 has a warping slide 21 which can be pushed back and forth on guides along the warping drum 2 by means of the spindle 18.
  • a further carriage 23 is attached to the warping carriage 21 in a height-adjustable manner.
  • the further carriage 23 carries the drive mechanism for the movement of a sliding rivet 25 transversely to the warping drum 2 and for the height adjustment of the further carriage 23 with the other parts attached to it, as well as an arm 48 which has an application thickness measuring device 55 orthogonal to the drum axis of the warping drum 2 holds approximately in the middle of the warping belt to be wound up.
  • a motor 28 drives a shaft 31 by means of the transmission members 29, 30, from which a plurality of drives are derived.
  • the sliding rivet 25 is located on a cross slide 32.
  • a transmission member 33 leads from the shaft 31 to a worm drive 34 which drives a threaded spindle 35 which can move the slide 32 in the transverse direction to the longitudinal axis of the drum 2.
  • the sliding rivet 25 is seated on a spindle 37 which is driven by its own motor 38 which is fastened to the carriage 32. The displacement of the reed 25 in the longitudinal direction to the drum 2 is therefore independent of the displacement transverse to the drum axis.
  • Fig. 2 shows the winding construction of the first warp a cone part 4 with a cone angle ⁇ to the drum axis of 15 °.
  • the process for warping threads runs automatically in that the entire chain can be wound up without interrupting the winding process from the start of the warping process, the first winding also being wound from the beginning at an optimal feed rate.
  • the control computer 64 gives an initial signal for the feed speed s v to a synchronous control 62, which in turn controls the drives 17 and 28, that is the support motor and the motor for the height adjustment, synchronously with the drum rotation.
  • the initial value is calculated from the warp parameters, for example the total number of threads of the warp width and the thread number, for example by dividing the total number of threads by the warp width and the thread number.
  • the resulting initial value for the feed rate is only required for the first or the first revolutions.
  • This first preliminary feed value already represents a very good approximation of the final feed value, which is still to be determined, so that the warping practically from the first winding position with the required feed rate.
  • the learning phase begins at the latest from the second revolution, in which the application thickness of the warping belt is continuously measured contactlessly with the aid of the application thickness measuring device 55, by forwarding a distance signal to a feed computer 60.
  • two initiators 66, 68 located at a circumferential distance from one another on the drum circumference detect the rotary movement of the warping drum 2 and its direction of rotation. The initiators also pass on their signals to the feed computer 60 and start it.
  • the feed computer receives order thickness measurement signals, from which the feed computer 60 can determine corrected feed speeds and can transmit a control signal s v -Rule to the synchronous control 62, which change the feed speed and the height of the warping 25 with the motors 17 and 28 can.
  • the application thickness measuring device 55 is moved due to the attachment to the carriage 23.
  • the application thickness measuring device 55 is also adjusted in the vertical direction in such a way that an essentially constant distance of approximately 50 mm from the warping belt surface is maintained.
  • the laser light distance measuring device which is used as the coating thickness measuring device 55, is always in the optimal measuring range, so that the distance between the measuring head and the warping belt surface and thus the coating thickness can be measured without contact with very high accuracy.
  • the resolution of the laser light distance measuring device is approx. 30 ⁇ m. A possible blow of the warping drum 2 can be filtered out and be taken into account when measuring the application thickness.
  • the learning phase new measured values for the thickness of the application are generated every 40 ms.
  • the scope of the correction of the feed speed signals is expediently limited in order to avoid control vibrations.
  • the regulated feed speed signals stabilize by reducing the fluctuation range of successive signals.
  • the learning phase can be ended and the mean value of the last feed speed signals can be prescribed as a constant feed speed signal that is binding for the rest of the warping process. This ensures that an optimal feed rate is automatically determined and used uniformly for the entire warping process.
  • the end value of the feed rate signal determined after the end of the learning phase and at the beginning of the working phase is sent to the control computer 64 by the Feed computer 60 reported back so that the control computer 64 can determine the exact number of turns in order to adhere exactly to the warp length set on the control panel 56 of the control.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Soil Working Implements (AREA)
  • Replacement Of Web Rolls (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

Selon un procédé d'ourdissage de fils sur le tambour d'ourdissage (2) d'un ourdissoir, on règle d'abord une vitesse temporaire d'avancement du peigne ourdisseur (25) synchronisée avec la vitesse de rotation du tambour d'ourdissage (2), puis on détecte à plusieurs reprises l'épaisseur de l'enroulement d'ourdissage et on corrige la vitesse d'avancement en fonction du nombre de révolutions du tambour d'ourdissage (2) et de l'épaisseur de l'enroulement qui en résulte. On finit ensuite d'enrouler les fils à ourdir à ladite vitesse. Pendant une phase de démarrage, une vitesse d'avancement théoriquement correcte est déterminée en fonction de paramètres de la chaîne, par exemple le nombre total de fils, la largeur de la chaîne et le titre du fil; cette vitesse sert de valeur initiale pendant au moins la première révolution du tambour d'ourdissage (2). Pendant une phase d'apprentissage qui suit la phase de démarrage ou pendant la phase de démarrage elle-même, l'épaisseur de la première section d'ourdissage est mesurée en continu sans contact. A cet effet, un dispositif (55) de mesure de l'épaisseur de l'enroulement est tenu à une distance sensiblement constante de la surface de la section d'ourdissage qui vient d'être enroulée. L'épaisseur d'enroulement est déterminée en fonction des signaux fournis par le dispositif (55) de mesure de l'épaisseur de lenroulement et la vitesse d'avancement est réglée au plus tôt à partir de la deuxième révolution du tambour d'ourdissage (2) en fonction de l'épaisseur mesurée de l'enroulement. Après la phase d'apprentissage, la vitesse d'avancement réglée est stabilisée pendant une phase de fonctionnement et une vitesse d'avancement constante est dérivée des données obtenues en dernier pendant tout le reste du processus d'ourdissage.

Claims (6)

  1. Procédé pour l'ourdissage de fils sur un tambour d'ourdissoir (2) d'un métier à ourdir (1) dans lequel après réglage d'une vitesse d'avancement provisoire, synchronisée avec le nombre de tours du tambour d'ourdissoir (2) pour un empeigne d'ourdissoir (25), il est procédé à plusieurs reprises à la détection de l'épaisseur d'application de la boucle d'ourdissage et une vitesse d'avancement corrigée est réglée en fonction du nombre de tours du tambour d'ourdissoir (2) et de l'épaisseur d'application en résultant, vitesse d'avancement avec laquelle la boucle d'ourdissage est complètement enroulée,
    - dans une phase de départ, en fonction des paramètres de chaîne, par exemple du nombre total de fils, de la largeur de chaîne et du numéro de fil, une vitesse d'avancement théoriquement exacte étant déterminée comme valeur de départ pour au moins le premier tour du tambour d'ourdissoir (2),
    - dans une phase d'adaptation, consécutivement à la phase de départ ou également pendant la phase de départ, il est mesuré de façon continue sans contact l'épaisseur d'application de la première bande d'ourdissage, tandis qu'un dispositif de mesure d'épaisseur d'application (55) est maintenu en espacement prédonné, sensiblement constant par rapport à la surface de la bande d'ourdissage qui vient d'être enroulée, en fonction des signaux du dispositif de mesure d'épaisseur d'application, il est procédé à la détermination de l'épaisseur d'application et de façon correspondante à l'épaisseur d'application, on règle la vitesse d'avancement au plus tôt à partir du deuxième tour de tambour d'ourdissoir (2), et
    - dans une phase de travail, à la fin de la phase d'adaptation, après stabilisation du signal de vitesse d'avancement régulé à partir des signaux de vitesse d'avancement reçus en dernier, il est déterminé une vitesse d'avancement constante pour le procédé d'ourdissage restant.
  2. Procédé selon la revendication 1, caractérisé en ce que la correction maximum du signal de vitesse d'avancement par cycle de mesure du dispositif de mesure d'épaisseur d'application (55) est limitée au début de la phase d'adaptation.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce qu'en tant que dispositif de mesure d'épaisseur d'application (55), on utilise un dispositif de mesure d'éloignement de lumière laser.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le signal de vitesse d'avancement constant dans la phase de travail est réglé à une valeur moyenne des signaux de vitesse d'avancement obtenus dans la phase d'adaptation des cycles de mesure dans un nombre prédéterminé lorsqu'une largeur d'oscillation maximum éventuellement prédonnée des valeurs de vitesse d'avancement est franchie dans la limite inférieure au cours de la phase d'adaptation.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'on détermine le nombre de spires en fonction de la vitesse d'avancement constante régulée pour assurer le maintien de la longueur de chaîne exacte pour le procédé d'ourdissage en cours.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif de mesure d'épaisseur d'application (55) se déplace de façon synchrone avec le mouvement rotatif du tambour d'ourdissoir (2) et de la modification de la position de la bande d'ourdissage.
EP94911182A 1993-04-30 1994-03-16 Procede d'ourdissage de fils Expired - Lifetime EP0696332B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96117316A EP0774537B1 (fr) 1993-04-30 1994-03-16 Ourdissoir

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4314393A DE4314393A1 (de) 1993-04-30 1993-04-30 Verfahren zum Schären von Fäden sowie Schärmaschine
DE4314393 1993-04-30
PCT/EP1994/000826 WO1994025652A2 (fr) 1993-04-30 1994-03-16 Procede et ourdissoir de fils

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96117316A Division EP0774537B1 (fr) 1993-04-30 1994-03-16 Ourdissoir
EP96117316A Division-Into EP0774537B1 (fr) 1993-04-30 1994-03-16 Ourdissoir

Publications (2)

Publication Number Publication Date
EP0696332A1 EP0696332A1 (fr) 1996-02-14
EP0696332B1 true EP0696332B1 (fr) 1997-05-14

Family

ID=6486904

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96117316A Expired - Lifetime EP0774537B1 (fr) 1993-04-30 1994-03-16 Ourdissoir
EP94911182A Expired - Lifetime EP0696332B1 (fr) 1993-04-30 1994-03-16 Procede d'ourdissage de fils

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96117316A Expired - Lifetime EP0774537B1 (fr) 1993-04-30 1994-03-16 Ourdissoir

Country Status (6)

Country Link
US (1) US5758395A (fr)
EP (2) EP0774537B1 (fr)
JP (1) JP2643603B2 (fr)
DE (3) DE4314393A1 (fr)
ES (2) ES2102219T3 (fr)
WO (1) WO1994025652A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169098A1 (fr) 2008-09-25 2010-03-31 Benninger AG Procédé destiné au fonctionnement d'une machine de coupe conique et machine de coupe conique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249939B1 (en) * 1998-05-07 2001-06-26 Hubert Kremer Method and device for warping using a cone sectional warping machine
JP3410433B2 (ja) * 2000-06-01 2003-05-26 有限会社スズキワーパー サンプル整経機、整経方法及び整経された糸群
DE10205928A1 (de) * 2001-02-21 2002-08-22 Ceramtec Ag Verfahren zur Herstellung piezokeramischer Vielschichtaktoren
JP4059181B2 (ja) * 2003-09-29 2008-03-12 株式会社村田製作所 多端子型積層セラミック電子部品の製造方法
ES2255791B1 (es) * 2003-10-20 2007-07-16 Comsa Comercial, S.A. Urdidor seccional para urdido de hilos.
CN102242436B (zh) * 2011-04-20 2013-10-09 绍兴县群方机械有限公司 分条整经机多档变速齿轮箱
CN105970395B (zh) * 2016-06-12 2019-03-12 江阴市四纺机新科技制造有限公司 分条整经机及其整经操作台总成

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219132C2 (de) * 1982-05-21 1985-11-21 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Direktschärmaschine mit einer Einrichtung zum Regeln der Schärgeschwindigkeit
CH661061A5 (de) * 1983-10-06 1987-06-30 Benninger Ag Maschf Verfahren zum steuern des schaerschlittens einer schaermaschine und schaermaschine.
CH669409A5 (fr) * 1986-02-27 1989-03-15 Benninger Ag Maschf
CH678196A5 (fr) * 1988-05-27 1991-08-15 Benninger Ag Maschf
CH679935A5 (fr) * 1989-10-09 1992-05-15 Benninger Ag Maschf
DE4007620A1 (de) * 1990-03-11 1991-09-12 Hollingsworth Gmbh Verfahren zum schaeren von faeden sowie schaermaschine
CH680862A5 (en) * 1990-08-24 1992-11-30 Benninger Ag Maschf Section warping machine - has appts., e.g. laser, for contactless measurement of roll thickness on the pressure area of a press roll pressing against the roll, etc.
CH682497A5 (de) * 1990-10-04 1993-09-30 Benninger Ag Maschf Konusschärmaschine und Verfahren zur Ermittlung der Wickeldichte.
DE9110361U1 (de) * 1991-08-22 1991-12-05 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Konusschärmaschine
DE4304956C2 (de) * 1993-02-18 1998-09-24 Mayer Textilmaschf Verfahren und Vorrichtung zum Schären von Fäden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169098A1 (fr) 2008-09-25 2010-03-31 Benninger AG Procédé destiné au fonctionnement d'une machine de coupe conique et machine de coupe conique

Also Published As

Publication number Publication date
ES2167504T3 (es) 2002-05-16
ES2102219T3 (es) 1997-07-16
DE59410028D1 (de) 2002-02-14
WO1994025652A3 (fr) 1995-04-06
EP0774537B1 (fr) 2002-01-09
JPH08506633A (ja) 1996-07-16
JP2643603B2 (ja) 1997-08-20
EP0696332A1 (fr) 1996-02-14
DE59402763D1 (de) 1997-06-19
EP0774537A1 (fr) 1997-05-21
US5758395A (en) 1998-06-02
WO1994025652A2 (fr) 1994-11-10
DE4314393A1 (de) 1994-11-03

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