EP0253036A1 - Process and apparatus to draw off waste selvedge in looms - Google Patents

Process and apparatus to draw off waste selvedge in looms Download PDF

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Publication number
EP0253036A1
EP0253036A1 EP86401607A EP86401607A EP0253036A1 EP 0253036 A1 EP0253036 A1 EP 0253036A1 EP 86401607 A EP86401607 A EP 86401607A EP 86401607 A EP86401607 A EP 86401607A EP 0253036 A1 EP0253036 A1 EP 0253036A1
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EP
European Patent Office
Prior art keywords
locks
cord
winding
coil
slivers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86401607A
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German (de)
French (fr)
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EP0253036B1 (en
Inventor
Jean Venot
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.)
Alsacienne de Construction de Material Textile
Alsacienne de Constructions Mecaniques SA
Original Assignee
Alsacienne de Construction de Material Textile
Alsacienne de Constructions Mecaniques SA
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
Priority to FR8501259A priority Critical patent/FR2576610B1/en
Application filed by Alsacienne de Construction de Material Textile, Alsacienne de Constructions Mecaniques SA filed Critical Alsacienne de Construction de Material Textile
Priority to DE8686401607T priority patent/DE3662406D1/en
Priority to EP19860401607 priority patent/EP0253036B1/en
Publication of EP0253036A1 publication Critical patent/EP0253036A1/en
Application granted granted Critical
Publication of EP0253036B1 publication Critical patent/EP0253036B1/en
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/002—Climatic conditioning or removing lint or dust
    • 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
    • D03D47/40—Forming selvedges

Definitions

  • the present invention relates to a method and a device for winding and evacuating the locks of waste originating from the cutting of the false edges of one or more widths during the weaving operation.
  • the wicks can for example be called by pinching between two toothed or rough wheels rotating at constant speed, then falling to the ground or into a pot; generally the loom has a pair of wheels for each bit.
  • the tensions of the locks are not perfectly constant or balanced and regulation is not possible, which causes breaks and stops in the loom for reasons not inherent to the weaving mechanism.
  • the present invention provides a method and a device capable of automatically balancing the tensions of the locks.
  • the method for removing the locks of waste from the cutting of the false edges is characterized in that said locks are wound simultaneously in the form of a single bead and that said bead undergoes a false twist allowing the tensions of the various locks to be automatically balanced.
  • the device for implementing such a method is characterized in that it comprises in combination: a winding means of the wire delivery type, the perimeter of which varies along the generator, - a means of braking the coil, a means for supplying the cord driven in rotation, capable of depositing the cord on the winding means on the side of its largest perimeter and capable of communicating to said cord a false twist.
  • the device according to the invention mainly comprises a supply duct (2), a winding means (3) and a braking means (9).
  • the winding means (3) consists, without limitation, of a dispenser having a substantially concave area (3a) and a substantially convex area (3b) (see FIG. 1), with the aim of promoting the elimination of the turns which are form around the winding means as described below.
  • any other type of winding means fulfilling the same function may be suitable: a coil composed of two parts of different taper, or composed of a cylindrical part and a plurality of needles or bars kept inclined relative to the cylindrical part at by means of a cheek, according to a technique known in the frame debtors.
  • Said winding means (3) is for example made of plastic and mounted for free rotation on a shaft (4).
  • the supply duct (2) is for example composed of a circular cross-section tube, bent, so that a part (2a) is in the axis of rotation of the shaft (4) and that a part (2b) extends to the periphery of the winding means.
  • the outlet of the supply duct (2) is located on the side of the largest perimeter of the winding means and outside of it.
  • the supply duct (2) is furthermore driven in rotation by any suitable means, for example and without limitation by a speed multiplier assembly (7) with gears driven by the shaft of the fabric take-up roller not shown.
  • the braking means (9) of the preferred embodiment of the invention is composed of two bars (9a) arranged on either side of the deliverer (3) and extending perpendicular to the axis of rotation of the device, and able to clamp the turns against the coil (see diagram in Figure 2).
  • a braking means of another type for example of the magnetic type.
  • a cord (1) formed of at least two wicks (1a) and (1b) from the cutting of the two false edges of a width is introduced into the conduit (2) through the inlet ( 6), exits through the orifice (5) of said conduit (2), is deposited on the winding means (3) in the vicinity of its largest perimeter.
  • a cord (1) formed of at least two wicks (1a) and (1b) from the cutting of the two false edges of a width
  • said cord (1) undergoes a false twist which produces a winding of the locks relative to each other then it is deposited on the winding means (3) in the form of successive turns which, under the effect of the taper or the slope of the part (3b), and in a manner known per se, slide towards the zone of smaller perimeter (3a) where they are distributed substantially in the form at least one layer of turns.
  • This layer of turns is maintained by the braking means (9), then discharged into a recovery container (8), automatically and in a manner known per se, on the side of the smallest perimeter of the winding means (3).
  • the braking means also has the function of determining the resulting tension on the cord (1).
  • the wick (1b) is gimped around the wick (1a) until there is catching up lengths and that the tensions of the two locks rebalance.
  • the operation is all the better as the rotation speed of the duct (2) is greater than that of the fabric take-up roller, because the false twist of the cord is greater and the regulation better.
  • the device according to the invention has the advantage of being self-priming, an advantage which is not found in the devices known from the prior art.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

1. Method for removing waste slivers produced by cutting false selvedges, of the type comprising a step of coiling said slivers in the form of spiral turns and a discharge step, characterized in that a single cord formed by the slivers is subjected to a false twist, producing a winding of the slivers one in respect of the other, which permits to automatically balance their tensions, the cord so formed being then coiled in the form of successive spiral turns.

Description

La présente invention concerne un procédé et un dispositif pour enrouler et évacuer les mèches de déchets provenant de la découpe des fausses lisières d'une ou plusieurs laizes lors de l'opération de tissage.The present invention relates to a method and a device for winding and evacuating the locks of waste originating from the cutting of the false edges of one or more widths during the weaving operation.

Actuellement, les mèches ainsi séparées de la laize sont évacuées par différents moyens. Les mèches peuvent par exemple être appelées par pince­ment entre deux roues dentées ou rugueuses tournant à vitesse constante, puis tomber au sol ou dans un pot ; généralement le métier comporte une paire de roues pour chaque mèche. Avec un tel système, les tensions des mèches ne sont pas parfaitement constantes ni équilibrées et une régulation n'est pas possible ce qui provoque des casses et des arrêts du métier pour des causes non inhérentes au mécanisme de tissage.Currently, the locks thus separated from the width are removed by various means. The wicks can for example be called by pinching between two toothed or rough wheels rotating at constant speed, then falling to the ground or into a pot; generally the loom has a pair of wheels for each bit. With such a system, the tensions of the locks are not perfectly constant or balanced and regulation is not possible, which causes breaks and stops in the loom for reasons not inherent to the weaving mechanism.

Dans le but d'éliminer ces arrêts indésirables et augmenter ainsi la productivité du métier, la présente invention propose un procédé et un dispositif aptes à équilibrer automatiquement les tensions des mèches.In order to eliminate these undesirable stops and thus increase the productivity of the loom, the present invention provides a method and a device capable of automatically balancing the tensions of the locks.

Conformément à l'invention, le procédé pour évacuer les mèches de déchets provenant de la découpe des fausses lisières, du type comportant une phase d'enroulement desdites mèches sous forme de spires et une phase d'évacuation, est caractérisé en ce que lesdites mèches sont enroulées simultanément sous forme d'un cordon unique et que ledit cordon subit une fausse torsion permettant d'équilibrer automatique­ment les tensions des différentes mèches.According to the invention, the method for removing the locks of waste from the cutting of the false edges, of the type comprising a winding phase of said locks in the form of turns and an evacuation phase, is characterized in that said locks are wound simultaneously in the form of a single bead and that said bead undergoes a false twist allowing the tensions of the various locks to be automatically balanced.

Le dispositif pour la mise en oeuvre d'un tel procédé se caractérise en ce qu'il comporte en combinaison:
- un moyen d'enroulement du type délivreur de fil, dont le périmètre varie le long de la généra­trice,
- un moyen de freinage de la bobine,
- un moyen d'amenée du cordon entraîné en rotation, apte à déposer le cordon sur le moyen d'enroulement du côté de son plus grand périmètre et apte à communiquer audit cordon une fausse torsion.The device for implementing such a method is characterized in that it comprises in combination:
a winding means of the wire delivery type, the perimeter of which varies along the generator,
- a means of braking the coil,
a means for supplying the cord driven in rotation, capable of depositing the cord on the winding means on the side of its largest perimeter and capable of communicating to said cord a false twist.

On comprendra mieux l'invention à l'aide de sa description ci-après et des figures annexées dans lesquelles :

  • la figure 1 est une coupe longitudinale du dis­positif,
  • la figure 2 est une vue en bout du moyen d'enroulement et du moyen de freinage.
The invention will be better understood with the aid of its description below and of the appended figures in which:
  • FIG. 1 is a longitudinal section of the device,
  • Figure 2 is an end view of the winding means and the braking means.

Le dispositif conforme à l'invention comporte principalement un conduit d'amenée (2), un moyen d'enroulement (3) et un moyen de freinage (9).The device according to the invention mainly comprises a supply duct (2), a winding means (3) and a braking means (9).

Le moyen d'enroulement (3) est constitué non limitativement d'un délivreur présentant une zone sen­siblement concave (3a) et une zone sensiblement convexe (3b) (voir figure 1), dans le but de favoriser l'élimination des spires qui se forment autour du moyen d'enroulement comme il est dit plus loin.The winding means (3) consists, without limitation, of a dispenser having a substantially concave area (3a) and a substantially convex area (3b) (see FIG. 1), with the aim of promoting the elimination of the turns which are form around the winding means as described below.

Tout autre type de moyen d'enroulement remplis­sant la même fonction peut convenir: bobine composée de deux parties de conicités différentes, ou composée d'une partie cylindrique et d'une pluralité d'aiguilles ou barrettes maintenues inclinées par rapport à la partie cylindrique au moyen d'une joue, selon une techni­que connue dans les débiteurs de trame.Any other type of winding means fulfilling the same function may be suitable: a coil composed of two parts of different taper, or composed of a cylindrical part and a plurality of needles or bars kept inclined relative to the cylindrical part at by means of a cheek, according to a technique known in the frame debtors.

Ledit moyen d'enroulement (3) est par exemple réalisé en matière plastique et monté libre en rota­tion sur un arbre (4).Said winding means (3) is for example made of plastic and mounted for free rotation on a shaft (4).

Le conduit d'amenée (2) est par exemple composé d'un tube à section circulaire, coudé, de telle sorte qu'une partie (2a) soit dans l'axe de rotation de l'arbre (4) et qu'une partie (2b) s'étende jusqu'à la périphérie du moyen d'enroulement.The supply duct (2) is for example composed of a circular cross-section tube, bent, so that a part (2a) is in the axis of rotation of the shaft (4) and that a part (2b) extends to the periphery of the winding means.

L'orifice de sortie du conduit d'amenée (2) est situé du côté du plus grand périmètre du moyen d'enroulement et à l'extérieur de celui-ci.The outlet of the supply duct (2) is located on the side of the largest perimeter of the winding means and outside of it.

Le conduit d'amenée (2) est en outre entraîné en rotation par tout moyen approprié, par exemple et non limitativement par un ensemble multiplicateur de vitesse (7) à engrenages entraîné par l'arbre du rou­leau d'appel de tissu non représenté.The supply duct (2) is furthermore driven in rotation by any suitable means, for example and without limitation by a speed multiplier assembly (7) with gears driven by the shaft of the fabric take-up roller not shown.

Tout autre moyen, synchronisé ou non avec l'arbre du métier peut convenir.Any other means, synchronized or not with the business tree may be suitable.

Le moyen de freinage (9) du mode de réalisation préféré de l'invention est composé de deux barres (9a) disposées de part et d'autre du délivreur (3) et s'éten­dant perpendiculairement à l'axe de rotation du dispo­sitif, et apte à serrer les spires contre la bobine (voir schéma de la figure 2). Bien entendu on peut également utiliser un moyen de freinage d'un autre type par exemple du type magnétique.The braking means (9) of the preferred embodiment of the invention is composed of two bars (9a) arranged on either side of the deliverer (3) and extending perpendicular to the axis of rotation of the device, and able to clamp the turns against the coil (see diagram in Figure 2). Of course, it is also possible to use a braking means of another type, for example of the magnetic type.

Au cours du fonctionnement, un cordon (1) formé d'au moins deux mèches (1a) et (1b) provenant de la découpe des deux fausses lisières d'une laize, est introduit dans le conduit (2) par l'entrée (6), sort par l'orifice (5) dudit conduit (2), est déposé sur le moyen d'enroulement (3) au voisinage de son plus grand périmètre. On a symbolisé, sur la figure 1, le chemin du cordon ainsi que quelques spires par des traits pointillés.During operation, a cord (1) formed of at least two wicks (1a) and (1b) from the cutting of the two false edges of a width, is introduced into the conduit (2) through the inlet ( 6), exits through the orifice (5) of said conduit (2), is deposited on the winding means (3) in the vicinity of its largest perimeter. We symbolized, in Figure 1, the path of the cord as well as some turns by dotted lines.

Sous l'effet de la rotation du conduit (5), ledit cordon (1) subit une fausse torsion qui produit un enroulement des mèches l'une par rapport à l'autre puis il se dépose sur le moyen d'enroulement (3) sous forme de spires successives qui, sous l'effet de la conicité ou de la pente de la partie (3b), et de façon connue en soi, glissent vers la zone de moins grand périmètre (3a) où elles se répartissent sensible­ment sous forme d'au moins une couche de spires. Cette couche de spires est maintenue par le moyen de freinage (9), puis évacuée dans un récipient de récupération (8), automatiquement et de façon connue en soi, du côté du plus petit périmètre du moyen d'enroulemnt (3).Under the effect of the rotation of the conduit (5), said cord (1) undergoes a false twist which produces a winding of the locks relative to each other then it is deposited on the winding means (3) in the form of successive turns which, under the effect of the taper or the slope of the part (3b), and in a manner known per se, slide towards the zone of smaller perimeter (3a) where they are distributed substantially in the form at least one layer of turns. This layer of turns is maintained by the braking means (9), then discharged into a recovery container (8), automatically and in a manner known per se, on the side of the smallest perimeter of the winding means (3).

Le moyen de freinage a également pour fonc­tion de déterminer la tension résultante sur le cordon (1). Ainsi, dans le cas où l'une des deux mèches (1b) est moins tendue que la deuxième mèche (1a), la mèche (1b) se guipe autour de la mèche (1a) jusqu'à ce qu'il y ait rattrappage des longueurs et que les tensions des deux mèches se rééquilibrent.The braking means also has the function of determining the resulting tension on the cord (1). Thus, in the case where one of the two wicks (1b) is less taut than the second wick (1a), the wick (1b) is gimped around the wick (1a) until there is catching up lengths and that the tensions of the two locks rebalance.

Ainsi, au cours du fonctionnement, les tensions des deux mèches s'équilibrent automatiquement et les risques de casses sont considérablement diminués.Thus, during operation, the tensions of the two wicks balance automatically and the risk of breakage is considerably reduced.

Le fonctionnement est d'autant meilleur que la vitesse de rotation du conduit (2) est supérieure à celle du rouleau d'appel du tissu, car la fausse torsion du cordon est plus grande et la régulation meilleure.The operation is all the better as the rotation speed of the duct (2) is greater than that of the fabric take-up roller, because the false twist of the cord is greater and the regulation better.

En plus, le dispositif conforme à l'invention présente l'avantage d'être auto-amorçant, avantage qui ne se rencontre pas dans les dispositifs connus de l'art antérieur.In addition, the device according to the invention has the advantage of being self-priming, an advantage which is not found in the devices known from the prior art.

Claims (4)

1. Procédé pour évacuer les mèches de déchets provenant de la découpe des fausses lisières, du type comportant une phase d'enroulement desdites mèches sous forme de spires et une phase d'évacuation caractérisé en ce que lesdites mèches sont enroulées simultanément sous forme d'un cordon unique (1) et que ledit cordon subit une fausse torsion permettant d'équilibrer automatiquement les tensions des diffé­rentes mèches.1. Method for evacuating the locks of waste from the cutting of false edges, of the type comprising a winding phase of said locks in the form of turns and an evacuation phase characterized in that said locks are wound simultaneously in the form of a single bead (1) and that said bead undergoes a false twist allowing the tensions of the different locks to be automatically balanced. 2. Dispositif pour la mise en oeuvre du procédé de la revendication 1 caractérisé en ce qu'il comporte en combinaison:
- un moyen d'enroulement (3) du type délivreur de fil dont le périmètre varie le long de la génératrice,
- un moyen de freinage (9) de la bobine,
- un moyen d'amenée (2) du cordon (1) entraîné en rotation, apte à déposer le cordon sur le moyen d'enroulement du côté de son plus grand diamètre et apte à communiquer audit cordon (1) une fausse torsion.2. Device for implementing the method of claim 1 characterized in that it comprises in combination:
- a winding means (3) of the wire delivery type, the perimeter of which varies along the generator,
- a braking means (9) of the coil,
- A supply means (2) of the cord (1) driven in rotation, capable of depositing the cord on the winding means on the side of its largest diameter and able to communicate to said cord (1) a false twist. 3. Dispositif selon la revendication 2, carac­térisé en ce que la bobine comporte une zone concave (3a) et une zone convexe (3b).3. Device according to claim 2, characterized in that the coil comprises a concave area (3a) and a convex area (3b). 4. Dispositif selon la revendication 2, caractérisé en ce que le moyen de freinage est composé de deux barres s'appuyant élastiquement sur la bobine.4. Device according to claim 2, characterized in that the braking means is composed of two bars resting elastically on the coil.
EP19860401607 1985-01-28 1986-07-18 Process and apparatus to draw off waste selvedge in looms Expired EP0253036B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8501259A FR2576610B1 (en) 1985-01-28 1985-01-28 PROCESS AND DEVICE FOR DISCHARGE WASTE OF WASTE ON A WEAVING MATERIAL
DE8686401607T DE3662406D1 (en) 1986-07-18 1986-07-18 Process and apparatus to draw off waste selvedge in looms
EP19860401607 EP0253036B1 (en) 1986-07-18 1986-07-18 Process and apparatus to draw off waste selvedge in looms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860401607 EP0253036B1 (en) 1986-07-18 1986-07-18 Process and apparatus to draw off waste selvedge in looms

Publications (2)

Publication Number Publication Date
EP0253036A1 true EP0253036A1 (en) 1988-01-20
EP0253036B1 EP0253036B1 (en) 1989-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860401607 Expired EP0253036B1 (en) 1985-01-28 1986-07-18 Process and apparatus to draw off waste selvedge in looms

Country Status (3)

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EP (1) EP0253036B1 (en)
DE (1) DE3662406D1 (en)
FR (1) FR2576610B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576610B1 (en) * 1985-01-28 1988-03-18 Alsacienne Constr Mat Tex PROCESS AND DEVICE FOR DISCHARGE WASTE OF WASTE ON A WEAVING MATERIAL
BE1003533A3 (en) * 1989-10-04 1992-04-14 Picanol Nv Method and device for collecting dust and waste of looms.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163711A (en) * 1937-06-12 1939-06-27 Western Electric Co Strand handling apparatus
FR1526782A (en) * 1964-05-30 1968-05-31 Prince Jidosha Kogyo Kabushiki Device for gripping and guiding moving edges of a weft
FR2076557A5 (en) * 1970-01-20 1971-10-15 Diederichs Sa Ateliers
CH514704A (en) * 1970-04-30 1971-10-31 Rueti Ag Maschf Method and device for forming an auxiliary edge in weaving
FR2486972A1 (en) * 1980-07-21 1982-01-22 Saurer Diederichs Sa False selvedge offtake stop motion for shuttleless loom - using selvedge feelers linked to warp stop motion droppers
EP0060234A1 (en) * 1981-03-06 1982-09-15 Tsudakoma Kogyo Kabushiki Kaisha A weft reservoir for fluid-jet looms
US4513791A (en) * 1983-02-01 1985-04-30 Burlington Industries, Inc. Leno selvaging and stretch nozzle system
FR2576610A1 (en) * 1985-01-28 1986-08-01 Alsacienne Constr Mat Tex Process and device for removing the slivers of waste on a loom

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163711A (en) * 1937-06-12 1939-06-27 Western Electric Co Strand handling apparatus
FR1526782A (en) * 1964-05-30 1968-05-31 Prince Jidosha Kogyo Kabushiki Device for gripping and guiding moving edges of a weft
FR2076557A5 (en) * 1970-01-20 1971-10-15 Diederichs Sa Ateliers
CH514704A (en) * 1970-04-30 1971-10-31 Rueti Ag Maschf Method and device for forming an auxiliary edge in weaving
FR2486972A1 (en) * 1980-07-21 1982-01-22 Saurer Diederichs Sa False selvedge offtake stop motion for shuttleless loom - using selvedge feelers linked to warp stop motion droppers
EP0060234A1 (en) * 1981-03-06 1982-09-15 Tsudakoma Kogyo Kabushiki Kaisha A weft reservoir for fluid-jet looms
US4513791A (en) * 1983-02-01 1985-04-30 Burlington Industries, Inc. Leno selvaging and stretch nozzle system
FR2576610A1 (en) * 1985-01-28 1986-08-01 Alsacienne Constr Mat Tex Process and device for removing the slivers of waste on a loom

Also Published As

Publication number Publication date
FR2576610A1 (en) 1986-08-01
DE3662406D1 (en) 1989-04-20
EP0253036B1 (en) 1989-03-15
FR2576610B1 (en) 1988-03-18

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