EP0421923A1 - Procédé et dispositif pour rentrer un fil de chaîne dans les parties formant un tissu dans un métier à tisser - Google Patents

Procédé et dispositif pour rentrer un fil de chaîne dans les parties formant un tissu dans un métier à tisser Download PDF

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Publication number
EP0421923A1
EP0421923A1 EP90810672A EP90810672A EP0421923A1 EP 0421923 A1 EP0421923 A1 EP 0421923A1 EP 90810672 A EP90810672 A EP 90810672A EP 90810672 A EP90810672 A EP 90810672A EP 0421923 A1 EP0421923 A1 EP 0421923A1
Authority
EP
European Patent Office
Prior art keywords
heald
warp thread
sword
auxiliary
pulling
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
EP90810672A
Other languages
German (de)
English (en)
Other versions
EP0421923B1 (fr
Inventor
Robert Bucher
Umberto Dünki
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
Sulzer AG
Sultex AG
Gebrueder Sulzer 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 Sulzer AG, Sultex AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0421923A1 publication Critical patent/EP0421923A1/fr
Application granted granted Critical
Publication of EP0421923B1 publication Critical patent/EP0421923B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

  • the invention relates to a method and a device for pulling a warp thread into fabric-forming parts of a weaving machine, where an auxiliary warp thread is drawn in through a thread-guiding part by means of a pulling device.
  • a method of this type according to EP patent application 0 259 915 is known, in which a pulling device moves into a working space between the warp threads and is moved towards the heald.
  • a shifting device for the warp threads must create the work area beforehand. It is not clear how the pulling device gets into an exact working position relative to the heald.
  • the device for pulling in the warp thread also comprises a device for threading the reed and a device for selecting the heald into which the auxiliary warp thread is to be pulled.
  • the auxiliary warp thread can be drawn exactly into the heald. If the auxiliary warp thread is drawn in from the warp beam to the fabric edge and further over the fabric, weaving can be continued without further interruptions. The ends of the previously extracted broken warp thread and the auxiliary warp thread lying on the fabric are either cut off a few weaving cycles after being drawn in or later, for example during the fabric inspection.
  • a slat 21 is in the contact position on the contact rail 23, since the warp thread 11 drawn into it is broken.
  • a narrow lane can be formed in the warp chain 10 by means of the lamella 21 and the contact rail 23, into which a sword 50 is inserted to widen the lane.
  • the sword 50 is controlled horizontally in the weft direction of the weaving machine to the height of the guard plate 21 by means of a travel drive (not shown).
  • the position of the guard plate 21 and thus the desired position for the sword 50 can, for example, with a special commercially available warp thread monitors can be determined by determining the resistance of a wire in the weft direction from one side of the warp thread monitor 2us to the contact point of the monitor slat 21, from which its position can be determined in a simple manner if the resistance per unit length of the wire is known.
  • a discharge device 80 for example with a suction nozzle 81, which swivels in the same position as the sword 50 over the formed alley between the warp threads 12, 13e 81 in the direction of arrow 81 'to a cutting and Holding device 82, where the section of the broken warp thread 11 held by the suction nozzle 81 is deposited and severed in order to be connected to an auxiliary warp thread 1 in a subsequent operation.
  • the end of the broken warp thread 11 located there can also be grasped and pulled up by means of the suction nozzle 81.
  • the section of the broken warp thread 11 lying there can be gripped by the suction nozzle 81 ⁇ and pulled into the position 11 ⁇ in FIG. 1 with the reed 4.
  • the broken warp thread 11 ⁇ can be in this uppermost Position can be easily detected by a suction nozzle 83, since it lies above the other warp threads 12, and pulled forward over the fabric 100 by means of the suction nozzle 83.
  • the parts of the broken weaving thread 11 are thus removed from the weaving area. It is expedient to steer the warp 10 into the shed closing position, with all of the heddle eyes 32 being at the same height as shown in FIG.
  • the sword 50 is shown in a working position with the healds 30, 31.
  • wings 50a, 50b extend from the sword 50, which become wider along the shaft 50c with increasing height.
  • the ends 500a, 500b of the wings 50a, 50b are directed towards each other inwards so that the individual warp threads 12, 13 are not deflected brusquely when the sword 50 is displaced counter to arrow II within the warp.
  • the wings 50a, 50b in the displacement direction of the sword 50, in front of its shaft 50c, there is a sensor 54 and a light source which, when the sword is displaced in the direction of arrow 50 ⁇ , generate a signal when the strand 31 into which the auxiliary warp thread 11 is inserted is to be located at the level of the connecting line V of the sensor 54 and the light source 55.
  • the device 5 for locating the heald 31 with the sword 50 is then only moved further by the distance between the connecting line V and the groove 52 in the shaft 50c, so that the device 5 comes to a standstill after the heald 31 has been retracted into the groove 52.
  • the retracting position for the pull-in tubes 71 and 72 is thus also determined beforehand.
  • the control S of the device 101 according to FIG. 5 registers the movement of the arm 56 which controls the sword 50 and controls it the arms 715 and 725 of the pull-in tubes 71 and 72 so that they come into the threading position at the strand 31.
  • the auxiliary warp thread can then be threaded into the heddle eye 32 by pushing the device 7 for pulling in a warp thread into the opening 53 of the sword 50, the blowing opening 72a of the left pull-in tube 72 according to FIG. 2a one side of the heald eye 32 blows auxiliary warp thread 1 through the heald eye 32 into the suction opening 71c of the right-hand pull-in tube 71.
  • This process can also be seen in the plan in Fig. 4b.
  • FIG. 2b shows the right-hand pull-in tube 71 in a side view, the suction opening 71c, a slot 71b and the blowing opening 71a being visible.
  • An air flow L through the draw-in tube 71 creates a negative pressure at the suction opening 71c and leaves the draw-in tube through the blow opening 71a, the flow being deflected at right angles to the longitudinal extent of the draw-in tube 71.
  • the auxiliary warp thread 1 can be pulled out of the pull-in tube 71 again through the slot 71b when the pulling-in process has ended.
  • the suction of the auxiliary warp thread 1 into the suction opening 71c is supported in that the blowing opening 72a of the left-hand pull-in tube 72 lies opposite the suction opening 71c.
  • FIG. 3 shows the weaving area in the warp thread monitor 2 while the auxiliary warp thread 1 is being drawn in.
  • the sword 50 is immersed in a movement according to arrow 50 'in the warp 10 and has a widened alley, as can be seen in Fig. 3b.
  • Fig. 3a shows the moment of immersion of the sword 50 between the warp threads 12 and 13, which are adjacent to the broken warp thread 11.
  • the guard plate 21 is in its lowered position 21 'inclined, whereby the alley has formed between the adjacent warp threads for dipping the sword 50.
  • the slanted position of the lamella 21 can be achieved in that slots in the contact rail 23 are designed obliquely and the contact rail 23 and a support rail 22 are moved in the longitudinal direction against one another.
  • Such a warp thread monitor is shown, for example, in Swiss patent specification 169 657.
  • the lamella 21 is gripped by a holder 24 and pulled up for the subsequent pull-in operation.
  • a section of the broken warp thread 11 in FIG. 3 has been connected in a knotting or splicing device 76 to a cut-off piece of an auxiliary warp thread 1.
  • the auxiliary warp thread is fed to the device 7 for pulling in the auxiliary warp thread 1 by means of a metering and feeding device 73 with a pair of rollers 74.
  • the pair of rollers 74 can pass the auxiliary warp thread 1 in a rotating manner, and after the transport of the auxiliary warp thread 1 has ended, the pair of rollers is separated in the direction of arrow 73 '.
  • the auxiliary warp thread is guided horizontally to the warp thread monitor 2, for example according to FIG.
  • the auxiliary warp thread 1 is then inserted into the guard plate 21 and blown further into the left draw-in tube 72.
  • the left draw-in tube 72 can be pushed as described above to the heald eye 32 of the heald 31, where the auxiliary warp thread 1 through the heald eye 32 back into the right draw-in tube 71 is threaded.
  • the pull-in tube 71 can be moved further according to the arrows 71 'in Fig. 4a.
  • a perforated needle 60 is inserted between the leaf lamella 40 from the fabric 100. The piercing needle comes to coincide with the right-hand draw-in tube 71, after which the auxiliary warp thread is blown into the piercing needle.
  • FIG. 4a shows that the pull-in needle 71 and the piercing needle 60 lie above the uppermost warp thread 12, the threading process being able to proceed unhindered.
  • all of the warp threads 12 and 13 can also be horizontal, or the position of the fabric 100 is changed by pulling it downwards. This can be achieved by moving a fabric support (not shown) downwards or by moving all heald frames 3 downwards.
  • the perforated needle 60 can remain at the level of the closed position F according to FIG. 4a.
  • the piercing needle 60 is pulled back in the direction of arrow 60 'through the reed 4 until the new auxiliary warp thread 1 which is drawn in lies over the fabric 100.
  • a thread clamp 61 which rests laterally on the piercing needle, prevents the auxiliary warp thread 1 from sliding out of the piercing needle 60 prematurely.
  • the sword 50 is displaced horizontally and vertically by an arm 56 in the direction of the arrows at 56, and the pull-in tubes 71 and 72 are displaced horizontally by means of the arms 715 and 725, respectively.
  • Rollers 710 are provided for guiding and driving the arms 715, 725.
  • an auxiliary warp thread spool 10 ' is first drawn off by means of an auxiliary blowing tube 73' and the warp thread is inserted into the auxiliary tube 72 '.
  • the auxiliary warp thread 1 moves in the direction of the pair of rollers 74.
  • the auxiliary warp thread is picked up by the pair of rollers 74 and introduced into a memory 75, through which the auxiliary warp thread first runs horizontally until it passes the sensor 91.
  • a counter is set in motion which holds the revolutions of a drive motor 74 'in the pair of rollers 74.
  • the pair of rollers 74 then continues to run until a predetermined number of revolutions of the drive motor 74 'or a predetermined length of the auxiliary warp thread 1 is reached.
  • the tip of the auxiliary warp thread 1 has meanwhile reached the splicer 76 through the memory 75, in which the tip of the auxiliary warp thread is detected after a signal from the sensor 94 has been emitted as the auxiliary warp thread passes.
  • an auxiliary warp thread supply will then form in the memory 75.
  • the suction nozzle 81 which has sucked in the broken warp thread from the warp 10, places it in the knotting or splicing device 76, where it is connected to the tip of the auxiliary warp thread 1. Then the end of the broken warp thread 10 'in the suction nozzle 21 can be cut off by scissors 79.
  • the pair of rollers 74 stands still and then reverses its direction of rotation according to arrow 74b. At the same time, blowing air is introduced into the auxiliary pipe 72 'in the conveying direction to the pull-in pipe 71.
  • the auxiliary warp thread was previously cut by scissors 77.
  • the auxiliary warp thread 1 is now controlled through the auxiliary tube 72 ', which is slit laterally, moved to the pull-in tube 71. From there, as described, the auxiliary warp thread is blown into the lamella 21 and further into the draw-in tube 72.
  • the remaining process steps were also set out above.
  • the pull-in tubes 71 and 72 are temporarily over the Air connections 71d and 72d supplied with blown air.
  • the program S for switching the blowing air on and off for the pull-in pipes 71 and 72 is stored in the control S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
EP90810672A 1989-10-03 1990-09-05 Procédé et dispositif pour rentrer un fil de chaîne dans les parties formant un tissu dans un métier à tisser Expired - Lifetime EP0421923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH359589 1989-10-03
CH3595/89 1989-10-03

Publications (2)

Publication Number Publication Date
EP0421923A1 true EP0421923A1 (fr) 1991-04-10
EP0421923B1 EP0421923B1 (fr) 1994-06-08

Family

ID=4259378

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90810672A Expired - Lifetime EP0421923B1 (fr) 1989-10-03 1990-09-05 Procédé et dispositif pour rentrer un fil de chaîne dans les parties formant un tissu dans un métier à tisser
EP90810673A Expired - Lifetime EP0421924B1 (fr) 1989-10-03 1990-09-05 Procédé et dispositif pour réparer les casse-fil dans un métier à tisser

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP90810673A Expired - Lifetime EP0421924B1 (fr) 1989-10-03 1990-09-05 Procédé et dispositif pour réparer les casse-fil dans un métier à tisser

Country Status (4)

Country Link
US (2) US5082030A (fr)
EP (2) EP0421923B1 (fr)
JP (2) JPH03130441A (fr)
DE (3) DE59006017D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679598A5 (fr) * 1989-12-22 1992-03-13 Zellweger Uster Ag
CH682577A5 (de) * 1990-09-17 1993-10-15 Zellweger Uster Ag Vorrichtung zur Handhabung von Litzen oder Lamellen in einer Kettfadeneinziehmaschine.
CH687542A5 (de) * 1993-09-13 1996-12-31 Staeubli Ag Zweigwerk Sargans Vorrichtung zur selektiven Uebergabe von Litzen.
ATE334241T1 (de) * 2001-04-25 2006-08-15 Staeubli Ag Pfaeffikon Vorrichtung und verfahren zur separierung von fäden aus einer fadenschicht
SE520453C2 (sv) * 2001-11-01 2003-07-15 Alfa Laval Corp Ab En apparat för samtidig rening av en vätska och en gas
US7338546B2 (en) * 2006-04-19 2008-03-04 Alfa Laval Corporate Ab Centrifugal separator for cleaning gas generated by an internal combustion engine and a method for operating the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234630A1 (fr) * 1986-02-14 1987-09-02 Picanol N.V. Dispositif pour localiser un casse-chaîne pour métiers à tisser avec des lamelles de contrôle de la chaîne
EP0255737A1 (fr) * 1986-07-08 1988-02-10 Picanol N.V. Procédé et dispositif pour faciliter la réparation d'un fil de chaîne dans les métiers à tisser avec lamelles casse-chaîne
EP0259915A1 (fr) * 1986-08-28 1988-03-16 Picanol N.V. Procédé pour réparer un fil de chaîne cassé dans les métiers à tisser, et mécanisme de réenfilage utilisé
EP0284591A1 (fr) * 1987-03-13 1988-09-28 Picanol N.V. Procédé pour séparer un fil de chaîne cassé de la nappe des fils de chaîne au casse-chaîne dans un métier à tisser et dispositif pour la mise en oeuvre de ce procédé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224842A (ja) * 1984-04-19 1985-11-09 帝人製機株式会社 糸通し方法およびその装置
JP2663269B2 (ja) * 1987-11-26 1997-10-15 津田駒工業株式会社 継ぎ糸処理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234630A1 (fr) * 1986-02-14 1987-09-02 Picanol N.V. Dispositif pour localiser un casse-chaîne pour métiers à tisser avec des lamelles de contrôle de la chaîne
EP0255737A1 (fr) * 1986-07-08 1988-02-10 Picanol N.V. Procédé et dispositif pour faciliter la réparation d'un fil de chaîne dans les métiers à tisser avec lamelles casse-chaîne
EP0259915A1 (fr) * 1986-08-28 1988-03-16 Picanol N.V. Procédé pour réparer un fil de chaîne cassé dans les métiers à tisser, et mécanisme de réenfilage utilisé
EP0284591A1 (fr) * 1987-03-13 1988-09-28 Picanol N.V. Procédé pour séparer un fil de chaîne cassé de la nappe des fils de chaîne au casse-chaîne dans un métier à tisser et dispositif pour la mise en oeuvre de ce procédé

Also Published As

Publication number Publication date
US5082030A (en) 1992-01-21
EP0421924B1 (fr) 1994-06-08
EP0421923B1 (fr) 1994-06-08
DE59006017D1 (de) 1994-07-14
US5088523A (en) 1992-02-18
DE59006019D1 (de) 1994-07-14
JPH03137253A (ja) 1991-06-11
DE9012907U1 (de) 1990-11-15
JPH03130441A (ja) 1991-06-04
EP0421924A1 (fr) 1991-04-10

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