EP1646573B1 - Systeme de traitement de fil et tensiometre pour fil - Google Patents

Systeme de traitement de fil et tensiometre pour fil Download PDF

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Publication number
EP1646573B1
EP1646573B1 EP04740823A EP04740823A EP1646573B1 EP 1646573 B1 EP1646573 B1 EP 1646573B1 EP 04740823 A EP04740823 A EP 04740823A EP 04740823 A EP04740823 A EP 04740823A EP 1646573 B1 EP1646573 B1 EP 1646573B1
Authority
EP
European Patent Office
Prior art keywords
yarn
tensiometer
thread
path section
upstream
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
EP04740823A
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German (de)
English (en)
Other versions
EP1646573A1 (fr
Inventor
Per Ohlson
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.)
Iro AB
Original Assignee
Iro AB
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Publication date
Application filed by Iro AB filed Critical Iro AB
Publication of EP1646573A1 publication Critical patent/EP1646573A1/fr
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Publication of EP1646573B1 publication Critical patent/EP1646573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/44—Tensioning devices for individual threads
    • 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 yarn processing system specified in the preamble of claim 1, and an assembly specified in the preamble of claim 5 Art.
  • the tensiometer is combined with a yarn guide component, which is positioned in the controlled yarn brake between the stationary yarn guide components containing embodiment downstream of the controlled yarn brake with a distance.
  • the tensiometer measures the thread tension resulting from the action of two series-connected thread brakes. The measurement result can be used to control at least the controlled thread brake.
  • a bending element is used, which is a two-sided clamped torsion spring with sensors.
  • the sensors respond to rotations of the torsion spring.
  • Known thread processing system with a weaving machine is the usual weaving integration of Tensiometers given.
  • the thread path between the withdrawal end of the storage body and the entry device extends substantially straight up to the Tensiometer Scheme.
  • the axis of the storage body or the longitudinal axis of the yarn delivery device is aligned with the straight FadenWeg.
  • the Tensiometerelement is transversely offset relative to the straight thread path, while arranged upstream and downstream of the Tensiometerelements, stationary thread guide parts are positioned in the straight thread path. This results in a predetermined deflection angle of the thread on Tensiometerelement.
  • This deflection angle is usually between about 15 and 20 °, ie, the thread closes at Tensiometerelement an angle of about 175 ° to about 170 °. From this arrangement results in an additional deflection of the thread at each of the upstream and downstream spaced from the Tensiometerelement arranged stationary Faden arrangementsstage each about half, predetermined deflection angle, ie about 7.5 ° to about 10 °, so that in the area there are three deflection points of the tensiometer whose total deflection angle corresponds approximately to twice the predetermined deflection angle on the tensiometer element required for the proper yarn tension measurement.
  • the stationary thread guide elements are, for example, transverse pins, which rest on the side of the thread which is opposite to the side with which the thread contacts the Tensiometerelement.
  • the total deflection angle amounting to twice or more of the predetermined deflection angle means extreme mechanical loads on the thread which cause thread breakage and because they vary. Cause deviations in the predetermined time of arrival of the free end of the registered thread on the opposite edge of the fabric.
  • Another disadvantage is that the friction on the upstream and downstream of the Tensiometerelements arranged thread guide elements falsifies the thread tension measurement.
  • these disadvantages have so far been accepted as indispensable.
  • the invention has for its object to provide a yarn processing system and an assembly in which the intermittent delivery, the mechanical loads on the thread are reduced to a minimum necessary to reduce the rate of yarn breaks.
  • the total deflection angle for the thread is surprisingly reduced to a necessary minimum close to the predetermined deflection angle.
  • the thread runs essentially straight from the Guide component of the yarn feeding device to Tensiometerelement and from this also substantially straight up in the entry device. This largely eliminates the undesirable additional deflections that were previously considered essential in known arrangements. Nevertheless, the predetermined deflection angle does not vary on Tensiometerelement.
  • the tensiometer is structurally designed so that the upstream-and-downstream path section is substantially straight and perpendicular to the mounting side. This eliminates the additional deflection of the thread on the way to the Tensiometerelement, so that only the required for a proper measurement deflection with the predetermined deflection angle is performed on the Tensiometerelement. There is likewise no further deflection on the outlet side of the tensiometer, because the downstream-thread path section from the tensiometer element to the entry device or the knitting system is likewise essentially straight.
  • the tensiometer is attached directly to the controlled thread brake on the yarn feeder.
  • the upstream-thread path section extends in the extension of the axis of the storage body at least largely straight through the controlled yarn brake to the Tensiometerelement.
  • Stationary thread guide parts are provided in the tensiometer upstream and downstream of the tensiometer element and contacted by the thread with a deflection angle approaching zero, which is considerably smaller than half the predetermined deflection angle on the tensiometer element.
  • the predetermined deflection angle is suitably between about 15 to 20 °.
  • the housing of the tensiometer is mounted with a mounting side of the thread brake so that the straight thread passage through the yarn brake through the upstream Fadenwegabites in the tensiometer to the tensiometer element extends at least substantially straight becomes, so that here no additional deflection takes place. Also on the output side of the tensiometer eliminates an additional deflection of the thread, because the downstream Fadenwegabites extends from the Tensiometerelement to the entry device at least substantially in a straight line.
  • the thread delivery device is mounted tilted relative to the current downstream Fadenwegabites, preferably with a tiltable clamp on a support arm of a delivery device stand on montagetechnisch simple manner.
  • the axis of the storage body or the longitudinal axis of the yarn delivery device is expediently tilted in this plane arranged. If the thread delivery device is mounted on a support arm of the stand, this plane is expediently selected perpendicular to the longitudinal direction of the support arm.
  • the plane may have any position in space, e.g. vertically, horizontally or diagonally. Accordingly, the tilting position of the delivery device is adjusted.
  • the stationary thread guide parts of the tensiometer may be transversely oriented to the thread bearing surfaces, which contacts the thread with the same side, with which he gives his reaction force on the Tensiometerelement.
  • the thread guide parts come into effect only if the thread develops a tendency to swing. When running smoothly, the thread can contact these guide parts relatively powerless or not at all.
  • a very small deflection angle on each guide member ensures that the thread does not lift off the guide part under the thread tension, so that the predetermined deflection angle is exactly maintained.
  • thread eyes can be positioned in the straight path sections, which likewise do not generate any appreciable deflection.
  • a thread processing system S in Fig. 1 comprises a supply reel A for a yarn Y, a yarn delivery device F, for example, a controlled yarn brake CB with here, for example straight thread passage a ', a tensiometer T, which is here cultivated in an assembly G to the controlled yarn brake CB, and an entry device EV of a thread-processing machine FVM, eg a weaving machine, for example a rapier or projectile weaving machine.
  • a thread-processing machine FVM eg a weaving machine, for example a rapier or projectile weaving machine.
  • the thread delivery device F has a housing 1 with a housing extension 2.
  • the housing 1 accommodates a drive motor M which is not highlighted for a take-up element 3.
  • the longitudinal axis of the yarn feeding device F is indicated by x1 and coincides with an axis X of a drum-shaped storage body 4, formed on the outer circumference 5 with the rotating driven winding element 3 adjacent thread turns from the yarn Y and cached.
  • the storage body 4 has an exposed withdrawal edge 6, over which (overhead deduction) the yarn Y is withdrawn intermittently from the entry device EV by a yarn guide component 7 in extension of the axis X and registered.
  • the thread guide component 7 is in the embodiment shown an inlet thread eyelet of the controlled thread brake CB.
  • a conventional yarn brake B e.g. a bristle ring or a frusto-conical, resiliently held metal strip (flexbrake) together to produce a predetermined, relatively constant thread tension during withdrawal and to control the withdrawal movement of the thread Y;
  • the controlled yarn brake CB here, as it stands, the straight thread passage a 'between the yarn guide eyelet 7 and an output eyelet 8.
  • the tensiometer T contains as an active Tensiometerelement E, for example, a cross bar 9, on which the yarn Y with his in Fig. 1 underlying side with a predetermined deflection angle ⁇ is deflected. Upstream and downstream of Tensiometerelements E spaced stationary thread guide parts 10, 11, for example bearing surfaces are provided, on which the yarn Y is not or only slightly deflected.
  • the Tensiometergepuruse 15 also has an output eyelet 12, in which the yarn Y is also not or only slightly deflected and then runs directly to the entry device EV of the yarn processing machine.
  • the Tensiometergeophuse 15 has a mounting side 16, with the tensiometer T is mounted in the assembly G to the controlled yarn brake CB.
  • a housing inlet 17 is provided, which is positioned so that coming from the controlled yarn brake CB thread Y extends as far as possible straight extension of the thread passage a 'to Tensiometerelement E, is deflected at this with the predetermined deflection angle a and then also largely straight through the output side of the thread eye 12 to the entry device EV runs.
  • an upstream-thread path section a is formed, which extends from the yarn guide component 7 through the controlled yarn brake CB and the Tensiometergepuruse 15 largely straight up to Tensiometerelement E, and also a downstream thread path section b extending from Tensiometerelement E largely extends straight to the entry device EV.
  • the axis X of the storage body 4 (which corresponds to the longitudinal axis x1 of the yarn delivery device F in the embodiment shown) in the by the upstream and downstream thread path sections a, b defined plane (in Fig. 1 For example, a bottom-perpendicular plane in the plane of the drawing) relative to the downstream thread path section b with the predetermined deflection angle a tilted upwards.
  • the thread delivery device F is, as usual in this technology, positioned in a stand D not further emphasized with a clamp holder 13 on a support arm 14.
  • Fig. 2 Such a condition is in Fig. 2 indicated schematically.
  • the optionally additional deflection angles ⁇ 1 and ⁇ 2 each approach zero and in any case are substantially smaller than half the predetermined deflection angle ⁇ of the yarn Y on the tensiometer element E.
  • Tensiometers When knitting with overhead removal of the thread from the storage body of a knitting machine in the knitting system as the entry device EV also the previously described arrangements of Tensiometers can be provided with essentially only one deflection in Tensiometer Suite. It may be provided a controlled thread brake or another thread brake.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

Selon l'invention, dans un système de traitement de fil (S), un dispositif d'apport de fil (F) comprenant un corps de stockage en forme de tambour (4) et un tensiomètre (C) qui présente un élément de tensiomètre (E), est disposé en amont d'un dispositif d'insertion (EV), le fil étant dévié d'un angle de déviation prédéterminé (a) au niveau dudit élément de tensiomètre (E). Selon l'invention, les composants du système de traitement de fil (S) sont disposés de sorte que des sections de trajectoire de fil amont et aval (a, b) sont rectilignes au moins dans une large mesure. A cet effet, l'axe (X) du corps de stockage (4) est incliné d'un angle valant au moins approximativement l'angle de déviation de fil prédéterminé (a), par rapport à la section de trajectoire de fil aval (b).

Claims (5)

  1. Système de traitement de fil (S), comprenant une machine (FVM) présentant au moins un canal de fil et traitant le fil, en particulier un métier à tisser à pince ou un métier à tisser à projectile (W), un appareil de livraison de fil (F) avec un corps de stockage (4) en forme de tambour, respectivement un composant de guidage de fil (7, 8) côté entrée et côté sortie, positionné dans le prolongement de l'axe (X) du corps de stockage (4), d'un frein de fil (CB) commandé de l'appareil de livraison de fil (F), étant prévu dans le canal de fil en amont d'un dispositif d'insertion (EV) de la machine et un tensiomètre (T) présentant un élément de tensiomètre (E) étant prévu entre le composant de guidage de fil (8) côté sortie et le dispositif d'insertion (EV), et le fil (Y) étant retiré à partir du dispositif d'insertion (EV) sur des spires stockées sur la périphérie du corps de stockage (5) au-dessus d'une extrémité de dévidage (6) libre du corps de stockage (4) et étant dévié à partir d'un tronçon de course de fil en amont (a) passant par le frein de fil (CB) commandé de l'appareil de livraison de fil (F) à l'intérieur d'un boîtier de tensiomètre (15) sur l'élément de tensiomètre (E) avec un angle de déviation (α) prédéfini dans un tronçon de course de fil en aval (b) vers le dispositif d'insertion (EV), le tronçon de course de fil en amont (a) partant du composant de guidage de fil (7) côté entrée traversant le frein de fil (CB) contrôlé et le boîtier de tensiomètre (15) et allant à l'élément de tensiomètre (E) et le tronçon de course de fil en aval (b) allant de l'élément de tensiomètre (E) au dispositif d'insertion (EV) étant au moins largement droits, et l'axe (X) du corps de stockage (4) étant aligné avec le tronçon de course de fil en amont (a), caractérisé en ce que le tensiomètre (T) est monté directement sur le frein de fil (CB) commandé et comporte des parties de guidage (10, 11) fixes, espacées entre une entrée de boîtier (17) et une boucle de fil de sortie (12) du boîtier de tensiomètre (15) en amont et en aval de l'élément de tensiomètre (E), lesquelles parties sont mises en contact par le fil (Y) respectivement avec un angle de déviation (α1, α2) tendant vers zéro, qui est sensiblement inférieur au demi-angle de déviation (a) prédéfini sur l'élément de tensiomètre (E), et en ce que l'angle de déviation (a) prédéfini sur l'élément de tensiomètre (E) se situe environ entre 15° et 20°.
  2. Système de traitement de fil selon la revendication 1, caractérisé en ce que l'axe (X) du corps de stockage (4) définit l'axe longitudinal (X1) de l'appareil de livraison de fil (F), en ce que l'ensemble de l'appareil de livraison de fil (F) est basculé par rapport au tronçon de course de fil en aval (b), de préférence avec un support de serrage (13) basculant sur un bras support (14) d'un montant d'appareil de livraison (D).
  3. Système de traitement de fil selon la revendication 2, caractérisé en ce que le fil (Y) est dévié sur l'élément de tensiomètre (E) dans un plan défini par les tronçons de course en aval et en amont (a, b) et en ce que l'axe (X) du corps de stockage (4) ou l'axe longitudinal (X1) de l'appareil de livraison de fil (F) est disposé de façon basculée dans ce plan, qui est orienté de préférence perpendiculairement à l'axe longitudinal du bras support (14).
  4. Système de traitement de fil selon la revendication 1, caractérisé en ce que les parties de guidage (10, 11) du tensiomètre (T) sont des surfaces d'appui orientées transversalement par rapport au fil (Y) au-dessous du côté du fil (Y), avec lequel le fil (Y) repose sur l'élément de tensiomètre (E).
  5. Ensemble (G) avec un frein de fil (CB) et un tensiomètre de fil (T), le tensiomètre de fil (T) présentant un boîtier (15), dans lequel un élément de tensiomètre est disposé et sur lequel un fil est dévié avec un angle prédéfini à partir d'un tronçon de course de fil en amont dans un tronçon de course de fil en aval et le frein de fil présentant un passage de fil (a') sensiblement droit, caractérisé en ce que le tensiomètre (T) est monté avec un côté de montage (16) du boîtier (15) sur le frein de fil (CB), en ce que le tensiomètre (T) présente dans le boîtier (15) des parties de guidage (10, 11) fixes, en amont et en aval de l'élément de tensiomètre (E) et à distance de celui-ci, lesquelles parties sont positionnées entre une entrée de boîtier (17) dans le côté de montage (16) et l'élément de tensiomètre (E) et l'élément de tensiomètre (E) et une boucle de fil de sortie de boîtier (12), de telle sorte que le fil est dévié dans un tronçon de course de fil en amont (a), qui est jusqu'à l'élément de tensiomètre (E) un prolongement sensiblement rectiligne du passage de fil (a) à travers le frein de fil (CB) et perpendiculairement au côté de montage (16), est dévié dans un tronçon de course de fil (b) en aval au moins largement droit partant de l'élément de tensiomètre (E) et traversant la boucle de fil de sortie de boîtier (12) à chaque fois avec un angle de déviation (α1, α2) tendant vers zéro, qui est sensiblement inférieur au demi-angle de déviation (α) prédéfini sur l'élément de tensiomètre (E), et en ce que l'angle de déviation (α) prédéfini sur l'élément de tensiomètre (E) se situe à peu près entre 15° et 20°.
EP04740823A 2003-07-22 2004-07-08 Systeme de traitement de fil et tensiometre pour fil Expired - Lifetime EP1646573B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003133292 DE10333292A1 (de) 2003-07-22 2003-07-22 Faden-Verarbeitungssystem und Faden-Tensiometer
PCT/EP2004/007532 WO2005014456A1 (fr) 2003-07-22 2004-07-08 Systeme de traitement de fil et tensiometre pour fil

Publications (2)

Publication Number Publication Date
EP1646573A1 EP1646573A1 (fr) 2006-04-19
EP1646573B1 true EP1646573B1 (fr) 2009-07-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740823A Expired - Lifetime EP1646573B1 (fr) 2003-07-22 2004-07-08 Systeme de traitement de fil et tensiometre pour fil

Country Status (4)

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EP (1) EP1646573B1 (fr)
CN (1) CN100475677C (fr)
DE (2) DE10333292A1 (fr)
WO (1) WO2005014456A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10168262B2 (en) 2013-12-13 2019-01-01 Rehabilitation Institute Of Chicago Pretensioner system and methods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105177831A (zh) * 2015-09-28 2015-12-23 嵊州市中森电子有限公司 一种带有张力调节装置的储纬器
CN105332149B (zh) * 2015-10-21 2018-05-29 泉州市新空间装饰工程有限公司 一种张力可控的储纬器
EP3665319B1 (fr) 2017-08-08 2023-03-22 Vandewiele Sweden AB Frein de fil réglable

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JPH0226957A (ja) * 1988-07-12 1990-01-29 Nissan Motor Co Ltd 流体噴射式織機の緯入れ制御方法
BE1003243A3 (nl) * 1989-04-19 1992-02-04 Picanol Nv Inrichting voor het meten van de spanning in een textieldraad.
IT1248647B (it) * 1990-05-28 1995-01-26 Roy Electrotex Spa Strumento per eseguire la misura della tensione meccanica di fili, in particolare di fili di trama nell'alimentazione di telai di tessitura,ed alimentatore di trama equipaggiato con detto strumento di misura
DE4131656A1 (de) * 1991-09-23 1993-03-25 Iro Ab Verfahren und webmaschine
DE19544202B4 (de) * 1995-11-28 2007-01-04 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Einregeln einer nach einem Rechenspanner vorliegenden Fadenzugkraft in einer Textilmaschine
DE29601834U1 (de) * 1996-02-03 1997-06-05 Rieger, Walter, 77836 Rheinmünster Vorrichtung zur Messung kleiner Kräfte und daraus abgeleiteter Größen durch Meßwertaufnahme mittels elektrischer Sensoren, z.B. Dehnungsmeßstreifen
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
DE19635695A1 (de) * 1996-09-03 1998-03-05 Schlafhorst & Co W Fadenführungseinrichtung
WO2000056964A2 (fr) * 1999-03-22 2000-09-28 Iropa Ag Procede pour l'optimisation et la surveillance de l'insertion de trame sur des metiers a tisser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10168262B2 (en) 2013-12-13 2019-01-01 Rehabilitation Institute Of Chicago Pretensioner system and methods

Also Published As

Publication number Publication date
WO2005014456A1 (fr) 2005-02-17
CN100475677C (zh) 2009-04-08
EP1646573A1 (fr) 2006-04-19
CN1816489A (zh) 2006-08-09
DE10333292A1 (de) 2005-02-10
DE502004009728D1 (de) 2009-08-20

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