EP0776390B1 - Metier a tisser a pince - Google Patents

Metier a tisser a pince Download PDF

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Publication number
EP0776390B1
EP0776390B1 EP95924151A EP95924151A EP0776390B1 EP 0776390 B1 EP0776390 B1 EP 0776390B1 EP 95924151 A EP95924151 A EP 95924151A EP 95924151 A EP95924151 A EP 95924151A EP 0776390 B1 EP0776390 B1 EP 0776390B1
Authority
EP
European Patent Office
Prior art keywords
guide
weft insertion
weaving machine
gripper
tape
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
EP95924151A
Other languages
German (de)
English (en)
Other versions
EP0776390A1 (fr
Inventor
Francisco Speich
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.)
Textilma AG
Original Assignee
Textilma 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 Textilma AG filed Critical Textilma AG
Publication of EP0776390A1 publication Critical patent/EP0776390A1/fr
Application granted granted Critical
Publication of EP0776390B1 publication Critical patent/EP0776390B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/271—Rapiers
    • D03D47/272—Rapier bands

Definitions

  • the invention relates to a rapier weaving machine according to the preamble of claim 1.
  • Rapier weaving machines of the type mentioned at the outset are, for example known from EP-OS 0 137 376, the is regarded as the closest prior art.
  • the top Guide surfaces of the recesses adjacent to the reed Guide pins according to the embodiment of Figure 2 of said document at an angle against open the conveyor belt, it is too small to exit the guide pins from the shed a jamming of the reed side To prevent guide pins with the warp threads and Warp thread breaks and malfunctions can occur.
  • the inclined guide surface is used exclusively for the improved Maintaining the entry tape.
  • warp threads that lie on the entry tape and / or incorrectly placed Basic warp threads in the movement of the entry belt between the entry tape and the guide recess of a guide pin get pinched, which in turn leads to malfunction and / or warp thread breaks.
  • Such pinching is particularly affected by sliding wear marks, e.g. Chatter marks, favors those who are in the leadership pencils led edges of the tape can train and can carry along threads.
  • rap weaving machines are known from CH-PS 682 572, where the entry belt and the gripper on the Warp threads rests and are guided between guide pins becomes.
  • the cross-section is between the guide head and the entry belt the entry tape in the guide area like this that reduces the lower guide surface of the guide head is lower than the top of the entry belt.
  • the Guide heads have an inclined guide surface, this serves exclusively for the stated purpose, that is, the management area to lower, but not to get caught to prevent the guide head with a warp thread if the guide head exits the shed, there are none for this Funds available or planned.
  • the disadvantage is that by the application of the entry belt or the gripper the warp threads inhibited the movement and the warp threads one subjected to heavy use so that only warp threads certain quality can be processed.
  • the object of the invention is a rapier weaving machine to improve the type mentioned at the beginning.
  • the angle ⁇ on the upper guide surface of the guide pins adjacent to the reed are dimensioned that the upper guide surface of the guide recess when Exit from the lower compartment and cross the warp threads with this forms an angle ⁇ ⁇ 5 °, it is prevented that at Leaving the shed and crossing the guide pins with the warp threads, especially those of the lower compartment Hooking of the guide pins occurs, causing malfunctions and / or warp thread breaks can be prevented. Also difficult this training the pinching of where appropriate warp threads resting on the entry belt into the slot between the guide recesses and the entry tape. At the Bottom of the entry belt prevents build-up on the Entry tape entrained between its leading edges and pinching threads in the slot between the guide recesses and the entry tape. Operational security the rapier weaving machine is thus significantly improved.
  • the upper guide surface and the lower guide surface of the Guide recesses can have an angular cross section Have connection.
  • the entry tape can be on the top between the leading Have a flat, even surface.
  • an embodiment of the rapier weaving machine is advantageous according to claim 7, i.e. if the entry tape also on has a structure on the upper side between the edges. This means that there are any threads lying on the entry belt outside the slots that between the guide recesses and the leading edges of the entry tape and it prevents threads that come out of any Reason, for example in the event of an incorrect change of Warp threads or too early change of subject on which Place the entry tape in the slot between the guide recesses and the leading edge of the entry tape can. This results in an optimal thread guidance guiding the claw and the entry tape and it plays the time of the intersection in relation to the gripper guidance not matter. This configuration already reinforces that Advantages of the innovation solution discussed above.
  • FIG. 1 shows an example from EP-OS 0 137 376 Known rapier weaving machine in which warp threads 2 are used Thread eyelets 4 guided on strands 6 and opened to a shed 8 are.
  • the warp threads converge on a selvedge 10, on which a weft thread, not shown, is used a reed 12 is struck.
  • the latter is on one Woven sley 14 attached to a guide device 16 for a Entry belt 18 and a gripper 20 attached thereto wearing.
  • the guide device 16 includes a first row from guide pins 22 which face the reed 12 and have guide recesses 24.
  • a second set of Guide pins 26 are on the reed 12 facing away Arranged side and contain guide recesses 28 for the entry tape.
  • Both the guide recesses 24 of the first row of guide pins 22 as well as the guide recesses 28 of the guide pins 26 have parallel upper and lower guide surfaces 30,32 by transverse Connection surfaces 34 are interconnected. How from Figure 1 shows, can on the one hand on the entry belt 18 overlying warp threads 2 in the slot between the Clamp entry belt 18 and the guide recesses 24, 28. On the other hand, the upper guide surface 30 of the guide recesses 24 of the first row of guide pins 22 hook with a warp thread 2 when the guide pins out be swung out of the shed or cross a warp thread, as indicated by arrow 31 in Figure 1.
  • FIG. 2 shows a rapier weaving machine according to the invention, which is an entry tape, for example shown in more detail in Figure 5 18a and first guide pins 22a and second Guide pins 26a, the guide recesses 28a of the second row of guide pins 26a upper guide surfaces 30a and lower guide surfaces 32a, which parallel to one another and parallel to the entry belt level 36 lie and via a vertical connecting surface 34a in Because of the recess are interconnected.
  • the first In contrast, the row of guide pins 22a have guide recesses 24a, which have a lower guide surface 38, which is parallel to the entry belt level 36.
  • the top guide surface 40 is at an angle a to the entry belt plane 36 inclined and opens against the entry belt 18a, the lower guide surface 38 and the upper guide surface 40 with one another via a connecting surface 42 are connected, in the example of Figure 5 in cross section forms a small arc.
  • the leading edges 44.45 of the entry tape are the guide recesses 24a, 28a adjusted, i.e. in the present example congruent with these educated.
  • the entry belt 18a has an upper structure 46 and a lower structure 48 provided such a height have a warp thread resting on the entry belt 18a not in the slot between the guide recesses 24a, 28a and the edges 44, 45 of the entry belt 18a can.
  • the entry tape consists of a correspondingly profiled solid material.
  • the amount of upper structure 46 can be, for example, 0.5 mm.
  • the angle ⁇ is advantageously so chosen that at the exit or when crossing the guide pin the upper guide surface with the warp threads 2a of the lower compartment 40 forms an angle ⁇ ⁇ 5 ° with the warp thread 2a. This makes it impossible for warp threads to form on the guide recess 24a of the guide pins 22a get caught can, as can be seen from Figure 2.
  • Figures 6 to 8 show different embodiments of the Guide recesses 24b, 24c, 24d, in which the lower guide surfaces 38a, 38b, 38c and the upper guide surface 40a, 40b, 40c via differently designed connecting surfaces 42a, 42b, 42c are connected to one another. That's how it is Connection surface 42a of Figure 6 with such a small radius provided that the upper guide surface 40a and the lower Butt guide surface 38a practically angularly. At the formation according to FIG. 7, however, is the connecting surface 42b with a large radius r so that the upper guide surface 40b and lower guide surface 38b are only relatively short. In the embodiment according to FIG. 8 shows the configuration of the connecting surface 42c approximately in the area between the embodiments of FIGS. 6 and 7.
  • FIG. 9 shows a further exemplary embodiment of a Entry belt 18b, in which an upper structure 46a and lower structure 48a is not formed on a base band 50 but as separate strips of material with the base tape 50 connected, for example glued or welded.

Landscapes

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

Claims (8)

  1. Métier à tisser à pince comportant au moins une pince (20) montée sur un ruban d'insertion (18, 18a, 18b) et guidée selon un mouvement va-et-vient dans une foule (8), le ruban d'insertion étant guidé dans la foule (8) de chaque côté sur des broches de guidage (22, 22a, 26, 26a) dans des cavités de guidage (24, 24a, 24b, 24c, 24d, 28, 28a) à distance des fils de chaíne (2, 2a), les cavités de guidage (24a, 24b, 24c, 24d) de la broche de guidage (22a) voisine du peigne (12) ayant chaque fois une surface de guidage inférieure (38, 38a, 38b, 38c) et une surface de guidage supérieure (40, 40a, 40b, 40c) faisant un angle (α) par rapport au plan (36) du ruban d'insertion (18a, 18b) en s'ouvrant par rapport à ce ruban d'insertion, le bord (44) du ruban d'insertion (18a, 18b) qui pénètre dans les cavités de guidage (24a, 24b, 24c, 24d) a une section adaptée ,
    caractérisé en ce que
    l'angle (α) de la surface de guidage supérieure (40, 40a, 40b, 40c) des broches de guidage (22a) voisines du peigne (12) est dimensionné pour que cette surface de guidage supérieure forme à la sortie de la foule inférieure et au croisement des fils de chaíne (2a), avec ceux-ci un angle β ≥ 5°,
    la surface de guidage inférieure (38, 38b, 38c) est parallèle au plan (36) du ruban d'insertion (18a, 18b), et
    le ruban d'insertion (18a, 18b) présente une structure (48, 48a) sur le côté inférieur entre les bords (44, 45).
  2. Métier à tisser à pince selon la revendication 1,
    caractérisé en ce que
    la surface de guidage supérieure (40, 40a, 40b, 40c) et la surface de guidage inférieure (38, 38a, 38b, 38c) sont reliées l'une à l'autre par une surface de liaison (42, 42a, 42b, 42c) à section en forme d'arc de cercle.
  3. Métier à tisser à pince selon la revendication 1 ou 2,
    caractérisé en ce que
    l'angle (α) est compris entre 20° et 70°.
  4. Métier à tisser à pince selon l'une des revendications 1 à 3,
    caractérisé en ce que
    les cavités de guidage (28) des broches de guidage (26a) non tournées vers le peigne (12) ont entre elles et par rapport au plan du ruban d'insertion (36), des surfaces de guidage supérieure et inférieure (30a, 32a) parallèles et le bord (45) du ruban d'insertion (18a, 18b) présente une section adaptée.
  5. Métier à tisser à pince selon la revendication 4,
    caractérisé en ce que
    la surface de guidage supérieure et inférieure (30a, 32a) est reliée par une surface de liaison (34a) perpendiculaire à celle-ci.
  6. Métier à tisser à pince selon l'une des revendications 1 à 5,
    caractérisé en ce que
    les cavités de guidage (24a, 24b, 24c, 24d, 28a) des broches de guidage (22a, 26a) et des bords de guidage (44, 45) du ruban d'insertion (18a, 18b) ont des formes congruentes.
  7. Métier à tisser à pince selon l'une des revendications 1 à 6,
    caractérisé en ce que
    le ruban d'insertion (18a, 18b) comporte une structure (46, 46a) entre les bords (44, 45) sur le côté supérieur.
  8. Métier à tisser à pince selon la revendication 7,
    caractérisé en ce que
    la structure (46, 46a, 48, 48a) a chaque fois une épaisseur d'au moins 0,5 mm.
EP95924151A 1994-08-16 1995-07-20 Metier a tisser a pince Expired - Lifetime EP0776390B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9413172U DE9413172U1 (de) 1994-08-16 1994-08-16 Greiferwebmaschine
DE9413172U 1994-08-16
PCT/CH1995/000167 WO1996005344A1 (fr) 1994-08-16 1995-07-20 Metier a tisser a pince

Publications (2)

Publication Number Publication Date
EP0776390A1 EP0776390A1 (fr) 1997-06-04
EP0776390B1 true EP0776390B1 (fr) 1999-12-29

Family

ID=6912425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95924151A Expired - Lifetime EP0776390B1 (fr) 1994-08-16 1995-07-20 Metier a tisser a pince

Country Status (9)

Country Link
US (1) US5806570A (fr)
EP (1) EP0776390B1 (fr)
JP (1) JPH10504068A (fr)
KR (1) KR100362354B1 (fr)
DE (2) DE9413172U1 (fr)
ES (1) ES2140689T3 (fr)
HK (1) HK1013318A1 (fr)
RU (1) RU2129625C1 (fr)
WO (1) WO1996005344A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013013A3 (nl) * 1998-10-29 2001-07-03 Picanol Nv Grijperband voor een grijperweefmachine.
DE19838476A1 (de) * 1998-08-25 2000-03-09 Picanol Nv Greiferbandwebmaschine mit wenigstens einem Greiferband und Führungsmitteln
EP1123430B1 (fr) * 1998-08-25 2007-06-13 Picanol N.V. Metier a tisser a pinces comportant au moins une bande a pinces et des moyens de guidage

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1171737B (it) * 1983-10-10 1987-06-10 Vamatex Spa Gancio per la guida di nastri portapinze all'interno del passo di telai di tessitura e complesso di guida con esso realizzabile
EP0199881B1 (fr) * 1985-05-03 1988-01-20 GebràœDer Sulzer Aktiengesellschaft Dispositif d'insertion de trame pour les métiers à tisser à navette à pince
IT1198246B (it) * 1986-12-23 1988-12-21 Vamatex Spa Mezzi per guidare il moto di una coppia di pinze portatrama all'interno del passo di telai di tessitura
EP0352223B1 (fr) * 1988-07-22 1993-02-03 GebràœDer Sulzer Aktiengesellschaft Dispositif d'insertion de trame d'un métier à tisser à pinces
FR2648161B1 (fr) * 1989-06-09 1991-10-04 Saurer Diederichs Sa Dispositif de support et de guidage pour organes d'insertion mecanique de la trame, dans une machine a tisser sans navette
BE1004305A3 (nl) * 1989-07-06 1992-10-27 Picanol Nv Grijperweefmachine met lansgeleiding.
US5176185A (en) * 1990-07-24 1993-01-05 Sulzer Brothers Limited Guide teeth for a rapier picking tape
CH682572A5 (de) * 1991-03-08 1993-10-15 Textilma Ag Greiferwebmaschine.
BE1006658A6 (nl) * 1992-01-20 1994-11-08 Picanol Nv Inrichting voor het geleiden van een lans bij weefmachines.

Also Published As

Publication number Publication date
KR970704925A (ko) 1997-09-06
ES2140689T3 (es) 2000-03-01
JPH10504068A (ja) 1998-04-14
EP0776390A1 (fr) 1997-06-04
HK1013318A1 (en) 1999-08-20
DE9413172U1 (de) 1994-10-13
WO1996005344A1 (fr) 1996-02-22
US5806570A (en) 1998-09-15
RU2129625C1 (ru) 1999-04-27
DE59507535D1 (de) 2000-02-03
KR100362354B1 (ko) 2003-02-05

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