BE681698A - - Google Patents

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Publication number
BE681698A
BE681698A BE681698DA BE681698A BE 681698 A BE681698 A BE 681698A BE 681698D A BE681698D A BE 681698DA BE 681698 A BE681698 A BE 681698A
Authority
BE
Belgium
Prior art keywords
weft
threads
loom
desc
weaving
Prior art date
Application number
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French (fr)
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
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Publication of BE681698A publication Critical patent/BE681698A/fr

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20Constructional features of the thread-engaging device on the inserters
    • D03D47/23Thread grippers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Photoreceptors In Electrophotography (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Dispositif pour métiers à tisser      
La présente invention se rapporte à un dispositif   pour   métiers à tisser dans lesquels la trame est alimentée de manière continue par des bobines placées en dehors de l'angle de tissa- ge, et plus particulièrement à un dispositif tel que défini dans le préambule de la revendication 1. 



   L'objet est d'organiser le passage simultané de deux l'ils de trame,ou peut être d'un certain nombre de fils de trame, dans l'angle de tiscage, dans un métier à tisser fonctionnant de manière continue, au départ de bobines situées en dehors de l'angle de tissage, au moyen d'un dispositif à insérer la trame, ou d'une aiguille à trame. 



   - Dans un procédé et un métier antérieurs,propres au tissage, par exemple de tissu de Panama, dans lequel deux fils de trame de même espèce sont introduits dans un seul et même angle de tissage,et dans lequel des aiguilles à insérer la trame, aux extrémités de courroies transporteuses, amènent les fils de 

 <Desc/Clms Page number 2> 

 trame dans l'angle de tissage, le fil est sownis à une tension lorsqu'il est   a=ené   à glisser dans les aiguilles à trams   'vu   cours d'une course en avant et en arrière, après   l'insertion   d'une passée double.Il en   résulte   que le tissu comportera des ruptures, du fait que la partie du fil de trame se trouvant entre le bord du tissu et le oispositif à insérer la trame est tendu et, la trame étant   rompue,

  cete   partie de trame ne se desserrera pas à temps pour permettre au dispositif de garde du fil d'arrêter le métier. Pour cette   raison,la   vitesse du métier doit être réduite de   20-50...,et   même alors on ne peut tisser des fils autres que ceux   exceptionnellement   résistants* 
Grâce au dispositif d'insertion de la présente invention. l'inconvénient cité ci-dessus propre à l'utilisation de deux fils de trame séparés est éliminé, et on peut même alors utiliser des fils de trame de résistance normale et, en plus, deux fils de trame différents peuvent être ame, dans un seul et même angle de tissage, lequel procédé est, à en usager pour la fabrication de certains types de tissus.

   La vitesse du métier ne doit pas être réduite, du fait que les fils ne sont pas soumis à une traction supplémentaire.La raideur des fils est uniforme et les ruptures de fil ne peuvent pas intervenir,du fait que des dispositifs de garde du fil peuvent être prévus pour les deux fils respectivement. 



   Le dispositif d'insertion de la trame conforma à l'in- vention est principalement caractérisé par les idées nouvelles exprimées dans la revendication 1. 



   Dans ce qui suit,une réalisation appropriée du dispositif conforme à l'invention est décrite à la lumière du dessin ci- joint dans lequel : 
La fig.l est une vue en perspective de l'aiguille d'in- sertion de gauche de la trame et des doigts débitant le fil, et la   fig'2   est une vue en plan de ces éléments. 

 <Desc/Clms Page number 3> 

 
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**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   <Desc / Clms Page number 1>
 



  Device for looms
The present invention relates to a device for weaving looms in which the weft is continuously supplied by spools placed outside the weaving angle, and more particularly to a device as defined in the preamble of the invention. claim 1.



   The object is to organize the simultaneous passage of two weft yarns, or perhaps a number of weft yarns, in the tiscage angle, in a continuously operating loom, at the start spools located outside the weaving angle, by means of a weft insertion device, or a weft needle.



   - In a prior method and loom, specific to weaving, for example of Panama fabric, in which two weft threads of the same species are introduced into a single and the same weaving angle, and in which needles to insert the weft, at the ends of conveyor belts, bring the threads of

 <Desc / Clms Page number 2>

 weft in the weaving angle, the thread is sownis to a tension when it has been able to slide in the needles with trams' seen during a race forwards and backwards, after the insertion of a past The result is that the fabric will have breaks, because the part of the weft thread between the edge of the fabric and the device to be inserted the weft is stretched and, the weft being broken,

  this part of the weft will not loosen in time to allow the thread guard to stop the loom. For this reason, the speed of the loom must be reduced by 20-50 ..., and even then one cannot weave threads other than those exceptionally strong *
Thanks to the insertion device of the present invention. the drawback mentioned above specific to the use of two separate weft threads is eliminated, and we can even then use weft threads of normal strength and, in addition, two different weft threads can be core, in one one and the same weaving angle, which method is to be used for the manufacture of certain types of fabrics.

   The speed of the loom should not be reduced, since the threads are not subjected to additional tension. The stiffness of the threads is uniform and thread breaks cannot occur, since thread guards can be provided for the two wires respectively.



   The weft insertion device according to the invention is mainly characterized by the new ideas expressed in claim 1.



   In what follows, a suitable embodiment of the device according to the invention is described in the light of the accompanying drawing in which:
Fig. 1 is a perspective view of the left weft insertion needle and yarn feed fingers, and Fig. 2 is a plan view of these elements.

 <Desc / Clms Page number 3>

 
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** ATTENTION ** end of DESC field can contain start of CLMS **.

 

Claims (1)

<Desc/Clms Page number 4> EMI4.1 <Desc / Clms Page number 4> EMI4.1 .. i?' ' .> .r : (!'V ' .. G t' : "'1 .,' ":()::.t"" dC:;;':X0U r090cti\'(-!- -'-.g'tûs < . ( pour g'.'.icer .?0.J.r. 1:':::,..,:..:' G.,... : .,..,.... ,. :' ra:<. .. i? ' '.> .r: (!' V '.. G t': "'1.,'": () ::. t "" dC: ;; ': X0U r090cti \' (-! - -'- .g'tûs <. (for g '.'. icer.? 0.Jr 1: ':::, ..,: ..:' G., ...:., .., .... ,.: 'ra: <. . Dispc-sdti .';".;\1 Y J..s ç . ;CG¯¯¯.,..:¯fç: ?^eC<2"1.5 pll1'le> fait que Ó' ."0SK>,':'. ;::-o''.r.y\.,: # \'Ü, , de è'é;lage: (9) $ont prévu . peu.; . ", ., .i r: C., (.' r.: , : t.' ' ...- 1 , '"'"'' --" "'''''' .--c...t.:.ons 0\1 2, caractérisé .: .l .ff'J. (r. ' '.E>e, -. .:.^,.':':: #,.:.;..<;. disposés des i..,.";. . ##, u les languettes a ont. :;u!.-'!(?:r"03'"-f: '- -....'#.'-r...-..', '''"' ' "' " '-'' -.-'..ons :.,,; ,c.:Jr.sct'3;r"::"S0 par ............ '.: C: " .. , ., ty. 'i . v:",. ; sur l'aiguille ".): ,. ,:: .,: "-;:'''' '::';',::';-':':.':pç'r;c:,:,:J:,,:,., . Dispc-sdti. '; ".; \ 1 Y J..s ç.; CG¯¯¯., ..: ¯fç:? ^ EC <2" 1.5 pll1'le> causes Ó'. "0SK> , ':'.; :: - o ''. ry \.,: # \ 'Ü,, de è'é; lage: (9) $ expected. little .;. ",., .ir: C ., (. 'r .:,: t.' '...- 1,' "'"' '- ""' '' '' '.-- c ... t.:.ons 0 \ 1 2, characterized.: .L .ff'J. (R. '' .E> e, -..:. ^ ,. ':' :: # ,.:.; .. <;. arranged i ..,. ";.. ##, u the tabs a have.:; u! .- '! (?: r" 03' "- f: '- -....' # .'- r. ..- .. ',' '' "''" '"' - '' -.- '.. ons:. ,,;, c.: Jr.sct'3; r" :: "S0 by. ........... '.: C: "..,., Ty.' I. V:" ,.; on the needle ".):,., ::.,:" - ;: '' '' '::'; ', ::'; - ':' :. ': pç'r; c:,:,: J: ,,:,.,
BE681698D 1965-06-01 1966-05-27 BE681698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI130565 1965-06-01

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326506A2 (en) * 1975-10-03 1977-04-29 Somet Soc Mec Tessile WEFT CARRYING CLAMPS FOR WEAPONS
EP0137377A2 (en) * 1983-10-07 1985-04-17 VAMATEX S.p.A. Weft holding member in weft carrying grippers for weaving looms
FR2635538A1 (en) * 1988-08-19 1990-02-23 Nuovopignone Ind Mecca WEFT INSERTION LANCE FOR NON-SHUTTLE WEAVING

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326506A2 (en) * 1975-10-03 1977-04-29 Somet Soc Mec Tessile WEFT CARRYING CLAMPS FOR WEAPONS
EP0137377A2 (en) * 1983-10-07 1985-04-17 VAMATEX S.p.A. Weft holding member in weft carrying grippers for weaving looms
EP0137377A3 (en) * 1983-10-07 1986-04-23 Vamatex S.P.A. Weft holding member in weft carrying grippers for weaving looms
FR2635538A1 (en) * 1988-08-19 1990-02-23 Nuovopignone Ind Mecca WEFT INSERTION LANCE FOR NON-SHUTTLE WEAVING
BE1003423A3 (en) * 1988-08-19 1992-03-24 Nuovo Pignone Spa WEFT INSERT FOR LAUNDRY WITHOUT SHUTTLE.

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