EP0362433B1 - Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long - Google Patents

Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long Download PDF

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Publication number
EP0362433B1
EP0362433B1 EP19880116629 EP88116629A EP0362433B1 EP 0362433 B1 EP0362433 B1 EP 0362433B1 EP 19880116629 EP19880116629 EP 19880116629 EP 88116629 A EP88116629 A EP 88116629A EP 0362433 B1 EP0362433 B1 EP 0362433B1
Authority
EP
European Patent Office
Prior art keywords
loom
weft
cams
piece
velvets
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
Application number
EP19880116629
Other languages
German (de)
English (en)
Other versions
EP0362433A1 (fr
Inventor
Maurizio Monguzzi
Ivan Monguzzi
Walter Monguzzi
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.)
Tm Tecnologie Meccaniche Srl
Original Assignee
Tm Tecnologie Meccaniche Srl
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 Tm Tecnologie Meccaniche Srl filed Critical Tm Tecnologie Meccaniche Srl
Priority to DE19883874738 priority Critical patent/DE3874738T2/de
Priority to EP19880116629 priority patent/EP0362433B1/fr
Publication of EP0362433A1 publication Critical patent/EP0362433A1/fr
Application granted granted Critical
Publication of EP0362433B1 publication Critical patent/EP0362433B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face

Definitions

  • This invention relates to the field of looms and in particular to double-piece velvet looms provided with cam-controlled weft-carrier elements (eg shuttles) and heddles.
  • double-piece velvets are produced by joining together two superposed fabrics by means of binder interweaves which when cut produce that thick straight pile projecting from both sides of the previously joined fabrics which is characteristic of velvets.
  • This usual double-piece velvet construction can be indicated by the scheme of Figure 1.
  • one fabric piece is formed from warp yarns B and A traversed by weft yarns I, III, V, VII, while the other fabric piece is formed from warp yarns D and C traversed by weft yarns II, IV, VI, VIII.
  • the fabric is shown in longitudinal section so that the weft yarns, which are perpendicular to the warp yarns, are represented by points (I, II, III, IV, V, VI, VII, VIII).
  • the weave used to form the two pieces can obviously be of other types (such as TAFFETA type), but this does not change the concept of two fabric pieces joined together by a further joining weave, to be cut in order to form the perpendicular pile surfaces.
  • TAFFETA type TAFFETA type
  • Such fabrics joined together and spaced apart by a distance dependent on the required length of projecting velvet pile are formed from two separate series of warp yarns a′, b′ and d′, c′ into which normal weft carriers insert a weft yarn t operating at a fixed level 1, this then being secured to them by the shed formed by the cyclic movement of their heddles and then compacted by the operation of a usual reed.
  • the various positions a, b, c, d assumed by the warp yarns are determined by the movement of heddles controlled by their own cams ( Figure 3) by way of idle levers. These levers are usually of the first class, so that when the cam tappet is lowered the heddle rises.
  • the positions a, b, c, d will be identified hereinafter by the positions assumed by their operating heddles or will be identified by the heddles themselves.
  • the heddle a is associated with the cam a ⁇
  • the heddle b is associated with the cam b ⁇
  • the heddle c is associated with the cam c ⁇
  • the heddle d is associated with the cam d ⁇ .
  • Figure 2 shows the arrangement of the various heddles a, b, c, d relative to the reference position of the fabric support beds BS or BI, or relative to the fixed level 1 at which the weft yarn t is cyclically inserted.
  • cams b ⁇ , c ⁇ , d ⁇ operate in the same manner as cam a ⁇ to drive their heddles b, c, d into the positions indicated in the various stages 1′, 2′, 3′, 4′, 5′, 6′, 7′, 8′ of Figure 2, which have the same significance for these cams as that already described for the cam a ⁇ .
  • the cams must have very steep ramps. This prevents the use of high rotational speeds and therefore reduces the hourly quantity of fabric produced.
  • the two fabric pieces tend to be pulled towards each other by the oblique pull of the warp yarns which are under tension, and this compromises the planarity of the fabric pieces themselves.
  • the distance between the two fabric pieces depends on the amplitude of each heddle movement and is limited by the structural limits of the loom (operational speed, cam rigidity etc.), so hindering the creation of long-pile velvets or carpets.
  • An object of the present invention is to provide a loom for the double-piece production of velvets, carpets and the like in which the pile length of the velvet or the like does not depend on the amplitude of the heddle movement.
  • a further object is to provide a loom which operates under conditions which favour planarity of the fabric produced.
  • a further object is to provide a loom with a high production rate.
  • the weft yarn T operates not at a single level 1 but at two different levels L′ and L ⁇ which alternate with each other. In this respect, during stage 1 the weft yarn T is at its higher level, during stage 2 the weft yarn is at its lower level, and so on.
  • a weft pusher rod E (associated with a weft pulling rod F provided with grippers for gripping the yarn) is driven reciprocatingly along G transverse to the direction of advancement and in the plane of the fabrics by the action of a cam H.
  • the movement G can also be obtained indirectly, for example by using a drive pinion on a rack rigid with said rod.
  • the alternating movement of the drive pinion can be obtained by association with the usual cams (H).
  • This entire transverse control mechanism for the weft can itself be cyclically raised along N by the aid of vertical guides M and a further cam Q synchronized with all other cams of the loom.

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

Claims (4)

  1. Un métier pour le production en double pièce de velours, tapis et similaires, y compris production à longs poils, caractérisé par un élément porte-trame (G) disposé de façon à passer à travers les divers fils de chaînes avançants (A, B, C, D) des deux pièces de tissu raccordées par le fil de formation du velours (U), selon des séquences établies par le mouvement des lisses, à différents niveaux (L', L") imposés cycliquement sur cet élément porte-trame (G,T)par le moyen de soulèvement (Q) (Figure 6).
  2. Un métier pour la production de double pièce de velours, tapis et similaires, y compris production à longs poils, suivant revendication précédente, caractérisé en ce que les fils de chaîne formant une pièce de tissu individuelle subissent des mouvements qui ne gênent pas les fils de chaîne de l'autre pièce de tissu.
  3. Un métier suivant revendications précédentes, caractérisé par des cames de commande des lisses où des rampes reliant les niveaux spécifiques couvrent des angles plus larges que ceux des cames associées aux métiers ayant un niveau de travail de trame fixe.
  4. Un métier suivant revendications précédentes, caractérisé par des moyens (Q) pour faire monter cycliquement le niveau de travail de la barre porte-trame, ces moyens reposant sur le fonctionnement coordonné des cames (Q) coopérant avec d'autres cames (H) pour contrôler son déplacement cyclique horizontal, qui est obtenu par l'engrènement des pignons commandés par poussoir sur une crémaillère.
EP19880116629 1988-10-07 1988-10-07 Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long Expired EP0362433B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19883874738 DE3874738T2 (de) 1988-10-07 1988-10-07 Webmaschine mit vertikal bewegbarem schusseintragelement fuer die fabrikation von doppelplueschgeweben, teppichen und dergleichen mit sehr langem flor.
EP19880116629 EP0362433B1 (fr) 1988-10-07 1988-10-07 Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880116629 EP0362433B1 (fr) 1988-10-07 1988-10-07 Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long

Publications (2)

Publication Number Publication Date
EP0362433A1 EP0362433A1 (fr) 1990-04-11
EP0362433B1 true EP0362433B1 (fr) 1992-09-16

Family

ID=8199432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880116629 Expired EP0362433B1 (fr) 1988-10-07 1988-10-07 Métier à tisser avec un élément porteur de trame mobile verticalement pour produire du velours double-pièce, tapis, etc., comprenant un poil très long

Country Status (2)

Country Link
EP (1) EP0362433B1 (fr)
DE (1) DE3874738T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005761A5 (nl) * 1992-04-10 1994-01-18 Wiele Michel Van De Nv Tweeschotsbinding voor het vervaardigen van dubbelstukweefsels, en dubbelstukweefmachine met vertikaal beweegbare inslaginbrenginrichtingen, voor de vervaardiging ervan.
BE1007125A3 (nl) * 1992-06-23 1995-04-04 Wiele Michel Van De Nv Inrichting voor het afwisselend in- en uitschakelen van de aandrijvingen van minstens twee inslaginrichtingen op een weefmachine.
KR102189178B1 (ko) * 2019-07-26 2020-12-09 국방과학연구소 입체 직물, 입체 직물의 제조 시스템 및 제조 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2162786C3 (de) * 1971-12-17 1975-04-24 Fa. Jean Guesken, 4060 Viersen Verfahren und Vorrichtung zur Herstellung von Doppel-Florgewebe
FR2545509A1 (fr) * 1983-05-02 1984-11-09 Alsacienne Constr Mat Tex Systeme de guidage de l'insertion des fils de trame pour machine a tisser a double nappe et machine a tisser equipee d'un tel systeme

Also Published As

Publication number Publication date
DE3874738T2 (de) 1993-03-11
DE3874738D1 (de) 1992-10-22
EP0362433A1 (fr) 1990-04-11

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