EP1365053B1 - Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser - Google Patents

Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser Download PDF

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Publication number
EP1365053B1
EP1365053B1 EP20030405208 EP03405208A EP1365053B1 EP 1365053 B1 EP1365053 B1 EP 1365053B1 EP 20030405208 EP20030405208 EP 20030405208 EP 03405208 A EP03405208 A EP 03405208A EP 1365053 B1 EP1365053 B1 EP 1365053B1
Authority
EP
European Patent Office
Prior art keywords
catching
nozzle
weft thread
holding apparatus
main nozzle
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
EP20030405208
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German (de)
English (en)
Other versions
EP1365053A1 (fr
Inventor
Urs Schaich
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
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 Sultex AG filed Critical Sultex AG
Priority to EP20030405208 priority Critical patent/EP1365053B1/fr
Publication of EP1365053A1 publication Critical patent/EP1365053A1/fr
Application granted granted Critical
Publication of EP1365053B1 publication Critical patent/EP1365053B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft
    • 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
    • D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing

Definitions

  • the invention relates to a catching and holding device for the catcher side Weft end according to the preamble of claim 1 and a Weaving machine with such a catching and holding device.
  • Next concerns the invention a method for holding and stretching the weft thread end and for removing the cut weft thread end.
  • the document US 4,465,110 describes a stretching nozzle, which on arranged upstream end of a reed of an air jet loom is.
  • the stretching nozzle comprises a carrier with a recess, the one Continuation of the guide channel forms, in which the weft during the entry, as well as a nozzle and a catch channel, which are arranged transversely to the weft direction and on open into opposite sides of the recess.
  • the cross section of the The guide channel necessarily has a certain size, which means a relatively large distance between the outlet opening of the nozzle and the Catch opening of the catch channel results. To secure the weft end in the To bring catch opening, a relatively large pressure is required, leading to correspondingly high air consumption.
  • the object of the invention is to provide a catching and holding device for the Fang side weft end to provide, which the Captures the weft end safely and with as much force as possible Capture channel holds, and which one with respect to the prior art reduced air consumption can be operated.
  • Another task of The invention is to provide a method with which the caught catcher ends safely and with as possible large force in the catch channel are held, and which with a compared to the prior art reduced air consumption gets by.
  • the inventive catching and holding device for catching side Weft ends in a loom comprises a main nozzle with a local impact area and a capture channel with one in the area of effect the main nozzle catch opening and a carrier on which the Main nozzle and the catch channel are arranged.
  • the auxiliary nozzle and the guides are so on the Carrier arranged that a weft end, which is located in the Area of action of the auxiliary nozzle is located by an air jet of the auxiliary nozzle along the guides is brought into the sphere of action of the main nozzle.
  • the catching and holding device on a loom with Sled and Riet mounted the catching and holding device so is arranged, that the weft end by a stop movement the reed is transportable into the area of action of the auxiliary nozzle.
  • the carrier comprises a slot or a recess, For example, a mouth-shaped recess, wherein the main nozzle a in the slot or the recess opening nozzle jet exit opening and the associated catch channel into the slot or the Recess opening catch opening.
  • the beam directions the main and the auxiliary nozzle parallel or at an acute angle to each other arranged or the main and the auxiliary nozzle are arranged so that the Projections of the beam directions on a plane form an acute angle.
  • the main nozzle comprises a nozzle tube, wherein the front part of the nozzle tube is used as a guide, along which the weft end in the area of action of the main nozzle is transported.
  • the nozzle jet outlet opening is the Main nozzle located in front of the catch opening of the catch channel and the distance between the jet outlet opening of the main nozzle and the Catch opening of the catch channel is not greater than the diameter of the Fang channel.
  • the carrier with the Main jet, the catching channel, the auxiliary nozzle and the guide on the batten or arranged on the reed comprises the catching and holding device additionally a strapping element fastened stationarily on the weaving machine, which is arranged so that the weft end at a Stop movement of the reed means of the Einreifimplantations in the Effective range of the auxiliary nozzle is transportable.
  • the inventive method for catching, stretching and holding a Fang documenten weft end in a loom which Weaving a catching and holding device with main nozzle and catching channel and a reed comprises, wherein the catching and holding device additionally a Auxiliary nozzle and includes one or more guides, the Weft end by a stop movement of the reed in the Operating range of the auxiliary nozzle transported, the weft end of a Air jet of the auxiliary nozzle along the guides in the sphere of action of Main jet brought and the weft end of a jet of air Main jet blown into the capture channel, with the weft end stretched and held.
  • the Weaving machine additionally a cutting device, wherein the Weft end after capture by the catch and holding device is cut by means of the cutting device, and the cut Weft end from the air flow of the main nozzle through the catch channel is transported away.
  • Fig. 1 shows a first embodiment of the present invention in Cross-section.
  • the catching and holding device 1 of the first Embodiment comprises a support 2, which on one side with a mouth-shaped recess 2a is provided, and a main nozzle 3, an auxiliary nozzle 4 and a catching channel 5, which are arranged in the carrier 2 and open into the recess 2a.
  • the main nozzle 3 comprises in Embodiment, a nozzle tube, on the one side of the recess 2a is arranged, and its outlet opening against a on the opposite side of the recess 2a located catch opening 5a of the Fangkanals 5 is directed, wherein the distance between the outlet opening the main nozzle 3 and the catch opening 5a advantageously smaller than that Diameter of the catch opening 5a is selected.
  • the preceding part of the Nozzle tube is used in the embodiment as an upper guide 6a to a registered weft thread 9 to lead to the catch opening 5a.
  • the mouth-shaped Recess 2a comprises a protruding part whose oblique inner surface serves as a lower guide 6b for the weft thread 9.
  • the catch opening 5a is arranged directly at the end of the guides 6a and 6b, so that a Registered weft 9, along the guides in the recess 2a slides, is guided to the catch opening 5a.
  • the auxiliary nozzle 4 opens in Embodiment immediately before the main nozzle 3 in the recess 2a, the jet directions of the main and auxiliary nozzles being parallel, so that a weft thread 9, which is in the effective range of the auxiliary nozzle. 4 from an air jet of the auxiliary nozzle along the guide 6a to Trap opening 5a and thus brought into the sphere of action of the main nozzle 3 becomes.
  • a reed 8 is shown in FIG Rietlamellen 8a and a guide channel 8b for the weft thread. 9 located.
  • the Riet is 8 with the registered weft thread 9 after the weft insertion in a Starting position, in which the weft thread is not yet from an air jet the main or auxiliary nozzle is detected. Only by a stop movement of the reed 8, the weft thread 9 is in a position 9 'in the area of action the auxiliary nozzle 4 transported.
  • the catching and holding device 1 is so arranged that the registered weft thread 9 through the Stop movement of Rietes in the recess 2a and in the Effective range of the auxiliary nozzle 4 is transported.
  • the Beam direction of the auxiliary nozzle 4 also at an acute angle to the main nozzle. 3 be arranged. It is essential that the air flow of the auxiliary nozzle 4 the Movement of the weft thread 9 supported along the one or more guides and helps keep the weft thread safe in the area of action of the To bring the main nozzle 3, and that the air flow of the auxiliary nozzle 4, the function the main nozzle 3 is not affected.
  • the auxiliary nozzle 4 laterally, i. in the longitudinal direction of the weft thread, offset from the main nozzle 3 to arrange.
  • guides can For example, correspondingly shaped surfaces of the carrier 2, above Nozzle tubes or additional guide elements are used.
  • Fig. 2a shows a similar cross section through the catch and Holding device of the first embodiment as shown in FIG. 1, wherein the reed additionally in different positions during the stop movement is shown, and Fig. 2b shows an oblique section through the in Fig. 2a illustrated catching and holding device along the axes of the main nozzle and the catch channel.
  • Fig. 2a shows an oblique section through the in Fig. 2a illustrated catching and holding device along the axes of the main nozzle and the catch channel.
  • the reed 8 On the far right in Fig. 2a is the reed 8 with the Rietlamellen 8a and the guide channel 8b for the weft thread 9 in the Initial position shown, i. directly after the weft insertion.
  • Fig. 3 shows an oblique view of the first embodiment, installed in an air jet loom.
  • the catching and holding device 1 is stationary arranged at the catch end of a weft thread 9 and 9 '.
  • a reed with reed blades 8a is once in the initial position 8, i. directly after the weft insertion, and once shown in the stop position 8 ', in which the weft thread 9 'is struck against a fabric 11.
  • the Fabric 11 is made of the weft threads 9 'and perpendicular to the Weft threads running warp threads 10.1 and 10.2 formed.
  • Between the Catching and holding device 1 and the fabric 11 are a pair of scissors 12 for Cutting the weft threads 9 'arranged and a so-called Air insert 13 for inserting the cut weft threads.
  • FIGs 4a to c show the built in an air-jet loom Catching and holding device of Fig. 3 from above.
  • Fig. 4a the reed with the weft thread 9 in the initial position 8 and in a middle position 8 ' represented, in which the weft thread 9 'of the main nozzle of the catch and Holding device 1 is blown into the catching channel.
  • Fig. 4b shows the reed in the stop position 8 "and Fig. 4c shows how the battered Weft 9 "cut by means of scissors 12 and by means of Air inlay 13 is inserted.
  • Fig. 5 shows a variant of that shown in Figures 4a to c Embodiment.
  • this variant is on an edge inserter for the Cut off weft threads.
  • the fabric 11 with a so-called auxiliary bar 11 a provided, which by means of a pair of scissors 12 is cut off.
  • the inventive method for catching, stretching and holding a Fang documenten weft end in a loom is on hand of Figures 2a, 2b and 3 explained in more detail.
  • the weaving machine is equipped with a and holding device 1 comprising a main nozzle 3 and a catching channel 5 and equipped with a Riet 8. Additionally includes the catch and Holding device 1, an auxiliary nozzle 4, one or more guides 6a and 6b and occasionally an additional Einreifelement 14 (Fig. 6a, 6b). After this Weft insertion is the catch end of the registered weft thread.
  • the Weaving machine additionally a cutting device 12 and the means of Catch and holding device 1 stretched weft end is cut off by means of the cutting device 12 and the cut Weft end of the air flow of the main nozzle 3 through the fishing channel. 5 transported away, for example by the weft end by a the fishing channel 5 connected hose in a collecting container is blown.
  • the described method for transporting the Cut off weft ends is economical and can basically used on virtually all types of catching, stretching, and holding nozzles become.
  • FIG. 6a shows a cross section through a catch and Holding device 1, which is mounted on a loom.
  • the catch and Holding device 1 comprises a support 2, which on a Riet 8 and / or on a batten connected to the reed 8 is mounted.
  • a Support 2 of the catch and holding device 1 is thus at a Stopping movement with the reed 8 moved.
  • a Einreifelement 14 which is stationary on the Loom is attached.
  • the reed 8 comprises Rietlamellen 8a, which with a guide channel 8b are equipped for a weft thread 9.
  • the Carrier 2 is provided with a recess 2a, which is formed and is arranged to surround the guide channel 8b on 3 sides and is open on the same side as the guide channel, the free Passage of the weft thread through the guide channel during the Weft insertion and unimpeded immersion of a tissue support remain during the shooting attack. Furthermore, the catch and holding device 1, a main nozzle 3, a fishing channel 5 and a Auxiliary nozzle 4, which, as described in the first embodiment, in Carrier 2 are arranged.
  • the main nozzle 3 comprises a nozzle tube whose protruding part serves as a guide for the weft thread 9 and directly is arranged outside the inner boundary of the guide channel 8b.
  • the auxiliary nozzle 4 opens directly in front of the nozzle tube of the main nozzle 3 in the recess 2a, wherein the jet directions of the main and the auxiliary nozzle run parallel, so that a weft 9, which in the Area of action of the auxiliary nozzle 4 is located by an air jet of the auxiliary nozzle along the serving as a guide nozzle tube in the sphere of action of Main nozzle 3 is brought.
  • the reed 8 is shown in Fig. 6a in three different positions.
  • the reed is in the initial position 8 according to the Position immediately after weft insertion.
  • the middle position 8 has the inner boundary of the guide channel just the Einreifelement 14th happens, i. the weft end was by the Einreifelement against the inner boundary of the guide channel and thus in the Range of action of the auxiliary nozzle 4 pulled by an air jet of the auxiliary nozzle along the serving as a guide nozzle tube in the sphere of action of Main nozzle 3 brought and then by an air jet of the main nozzle blown into the guide channel.
  • the Stop position 8 On the left in Fig. 6a is the reed in the Stop position 8 ". Further on the left side is the profile of a Tissue support 15 shown, which in the stop position in the The guide channel protrudes.
  • Fig. 6b shows the second embodiment in a view from above.
  • Fig. 7a and 7b show the inventive catching and holding device in installed state in a series shed weaving machine.
  • Fig. 7a is a Angled view of the catch, holding and conveying elements for catching, holding and conveying the catch-side weft thread ends and
  • Fig. 7b shows a longitudinal section through said elements along a weft thread 9.
  • Am Fang substantiveen weft end are successively a weaving rotor 17 with compartment-forming elements, a first conveyor element 18 with open Schussfadenmit Vietnameseö réelleen, a holding device 16 with jaws 19, a second conveyor element 20 with closed Schussfadenmit Spotifyö réelleen and an inventive catch and Holding device 1 is arranged.
  • the conveying elements 18 and 20 are connected to the Webrotor 17 connected while the holding device 16 and the catch and Holding device 1 are fixed stationary on the loom.
  • a possible embodiment of the catching and holding device 1 was in Frame of the first embodiment described in more detail.
  • the Functioning of the catch and holding device in Fig. 7a corresponds to Essentially how it works in the context of the first Embodiment has been described. The main difference exists in that in the embodiment shown in Figures 1 to 5 the inserted weft thread through a reed in the sphere of action of Auxiliary nozzle is transported while in the one shown in Fig. 7a Series weaving machine, the conveying elements 18 and 20, the weft in transport the area of action of the auxiliary nozzle.
  • inventive catch and Holding device and the inventive method is limited not on the mentioned air jet and the mentioned series shed weaving machine. With existing compressed air connection, the inventive catch and Holding device and the inventive method with suitable Adjustments can be used on virtually all weaving machine types.

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

Claims (10)

  1. Dispositif de cueillage et de retenue pour des extrémités côté cueillage de fils de trame dans un métier à tisser, ledit dispositif de cueillage et de retenue (1) comprenant une buse principale (3) avec une zone d'action locale (3a) et un canal de cueillage (5) avec une ouverture de cueillage (5a) située dans la zone d'action (3a) de la buse principale (3) ainsi qu'un support (2) sur lequel sont disposés la buse principale (3) et le canal de cueillage (5), caractérisé en ce que le dispositif de cueillage et de retenue (1) comprend additionnellement une buse auxiliaire (4) avec une zone d'action locale (4a) et un ou plusieurs guidages (6a, 6b), ladite buse auxiliaire (4) et les guidages (6a, 6b) étant disposés sur le support (2) de façon qu'une extrémité de fil de trame (9), qui se trouve dans la zone d'action (4a) de la buse auxiliaire (4), soit amenée par un jet d'air de la buse auxiliaire (4) le long des guidages (6a, 6b) dans la zone d'action (3a) de la buse principale (3).
  2. Dispositif de cueillage et de retenue selon la revendication 1, où le dispositif de cueillage et de retenue (1) est monté sur un métier à tisser avec battant et peigne (8), et où le dispositif de cueillage et de retenue (1) est disposé de façon que l'extrémité de fil de trame (9) peut être transportée par un mouvement de butée du peigne (8) dans la zone d'action (4a) de la buse auxiliaire (4).
  3. Dispositif de cueillage et de retenue selon la revendication 1 ou 2, où le support (2) comprend une fente ou un évidement (2a), et où la buse principale (3) comprend une ouverture de sortie de jet de buse débouchant dans la fente ou l'évidement (2a), et le canal de cueillage associé (5) une ouverture de cueillage (5a) débouchant dans la fente ou l'évidement (2a).
  4. Dispositif de cueillage et de retenue selon l'une des revendications 1 à 3, où les directions de jet des buses principale et auxiliaire (3, 4) sont disposées parallèlement ou selon un angle aigu l'une à l'autre ou bien les projections des directions de jet sur un plan forment un angle aigu.
  5. Dispositif de cueillage et de retenue selon l'une des revendications 1 à 4, où la buse principale (3) comprend un tube de buse, et où la partie avant du tube de buse est utilisable comme guidage (6a) le long duquel est convoyée l'extrémité (9) du fil de trame dans la zone d'action (3a) de la buse principale (3).
  6. Dispositif de cueillage et de retenue selon l'une des revendications 1 à 5, où l'ouverture de sortie du jet de buse de la buse principale (3) est disposée en amont de l'ouverture de cueillage (5a) du canal de cueillage (5), et où l'écart entre l'ouverture de sortie du jet de buse de la buse principale (3) et de l'ouverture de cueillage (5a) du canal de cueillage (5) n'est pas plus grand que le diamètre du canal de cueillage.
  7. Dispositif de cueillage et de retenue selon l'une des revendications 1 à 6, où le support (2) avec la buse principale (3), le canal de cueillage (5), la buse auxiliaire (4) et les guidages (6a, 6b) est fixé sur le battant ou le peigne (8), et où le dispositif de cueillage et de retenue (1) comprend additionnellement un élément de pressage (14) fixé d'une manière stationnaire sur le métier à tisser qui est disposé de façon que l'extrémité de fil de trame (9), lors d'un mouvement de butée du peigne (8) puisse être transportée au moyen de l'élément de pressage (14) dans la zone d'action (4a) de la buse auxiliaire (4).
  8. Métier à tisser comprenant un dispositif de cueillage et de retenue selon l'une des revendications 1 à 7.
  9. Procédé de cueillage, d'étirage et de retenue d'une extrémité de fil de trame côté cueillage dans un métier à tisser, ledit métier à tisser comprenant un dispositif de cueillage et de retenue (1) avec une buse principale (3) et un canal de cueillage (5) ainsi qu'un peigne (8), caractérisé en ce que
    l'extrémité du fil de trame (9) est transportée par un mouvement de butée du peigne dans la zone d'action (4a) d'une buse auxiliaire (4) du dispositif de cueillage et de retenue (1),
    l'extrémité de fil de trame (9) est amenée par un jet d'air de la buse auxiliaire (4) le long d'un ou de plusieurs guidages (6a, 6b) du dispositif de cueillage et de retenue (1) dans la zone d'action (3a) de la buse principale (3), et
    l'extrémité de fil de trame (9) est soufflée par un jet d'air de la buse principale (3) dans le canal de cueillage (5), où l'extrémité de fil de trame (9) est étirée et retenue.
  10. Procédé selon la revendication 9, où le métier à tisser comprend additionnellement un dispositif de coupe (12), et où l'extrémité de fil de trame (9), après le cueillage par le dispositif de cueillage et de retenue (1), est coupée au moyen du dispositif de coupe (12), et où l'extrémité coupée du fil de trame est évacuée par le flux d'air de la buse principale (3) à travers le canal de cueillage (5).
EP20030405208 2002-04-26 2003-03-26 Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser Expired - Lifetime EP1365053B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030405208 EP1365053B1 (fr) 2002-04-26 2003-03-26 Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02405344 2002-04-26
EP02405344 2002-04-26
EP20030405208 EP1365053B1 (fr) 2002-04-26 2003-03-26 Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser

Publications (2)

Publication Number Publication Date
EP1365053A1 EP1365053A1 (fr) 2003-11-26
EP1365053B1 true EP1365053B1 (fr) 2005-07-20

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EP20030405208 Expired - Lifetime EP1365053B1 (fr) 2002-04-26 2003-03-26 Dispositif de réception et de retention pour l'extrémité du fil de trame dans un métier à tisser

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1024545B1 (nl) * 2016-09-02 2018-04-05 Picanol Nv Inrichting en werkwijze voor het vangen en strekken van inslagdraden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649322A5 (de) * 1981-01-13 1985-05-15 Rueti Te Strake Bv Duesenwebmaschine.
EP0562213B1 (fr) * 1992-03-26 1996-09-25 Sulzer RàœTi Ag Appareil pneumatique pour la formation de lisières dans les métiers à tisser
DE19728013A1 (de) * 1997-07-01 1999-01-07 Textilma Ag Vorrichtung zum Strecken und Spannen eines Schussfadens und Webmaschine mit einer solchen Vorrichtung
US6321796B1 (en) * 1999-09-08 2001-11-27 Tsudakoma Kogyo Kabushiki Kaisha Tuck-in apparatus for shuttleless loom

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