EP0368799B1 - Métier à tisser avec support de tissu - Google Patents

Métier à tisser avec support de tissu Download PDF

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Publication number
EP0368799B1
EP0368799B1 EP89810796A EP89810796A EP0368799B1 EP 0368799 B1 EP0368799 B1 EP 0368799B1 EP 89810796 A EP89810796 A EP 89810796A EP 89810796 A EP89810796 A EP 89810796A EP 0368799 B1 EP0368799 B1 EP 0368799B1
Authority
EP
European Patent Office
Prior art keywords
passage
cloth
fabric
loom
guiding surface
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
EP89810796A
Other languages
German (de)
English (en)
Other versions
EP0368799A1 (fr
Inventor
Angelo Stacher
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.)
Sulzer AG
Original Assignee
Sulzer 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4271182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0368799(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0368799A1 publication Critical patent/EP0368799A1/fr
Application granted granted Critical
Publication of EP0368799B1 publication Critical patent/EP0368799B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay

Definitions

  • the invention relates to a weaving machine with a fabric support according to the preamble of claim 1.
  • a fabric support is normally mounted near the stop line of the weft thread on the fabric edge, so that the fabric is in a somewhat defined position with respect to the reed, and thus also the warp threads with respect to the weft insertion member of the loom.
  • a design of the reed has become established, as was outlined at the beginning.
  • the distance between the channel walls and the depth of the channel have values of the order of 10 mm, and the fabric support is normally arranged next to the guide channel mentioned in the stop position of the sley for space reasons.
  • a spreader table with a projection is known from EP-A-0 336 408 (document according to Art. 54 (3)), the foremost edge of the projection during the striking approximately in the middle of the weft insertion channel, both horizontally and in the vertical direction.
  • the stop line or the stop point is always formed relatively in the middle of the weft insertion channel. It can thus be avoided that the stop line of the fabric in the weft insertion channel moves so far up or down that the fabric collides with the edge of the reed tooth, which would damage the weft thread.
  • the stop line of the fabric can shift within the weft insertion channel, with the result that the weft threads are not woven evenly into the fabric and the weft density is therefore not uniform.
  • the invention achieves the object according to the characterizing features of claim 1.
  • the tissue support has, at its end facing the tissue, a beak-shaped projection which projects into the guide channel during the blade stop.
  • the smallest distance between the fabric guiding surface and the channel base will be chosen in the order of magnitude of 1 mm, so that there is no contact between these parts in the event of deformation between the sley and the fabric support.
  • the tissue guiding surface is best adjusted relative to the guide channel so that the distance between it and the upper channel wall is of the order of 1 mm. Since the tissue is deflected by a small angle on the tissue guiding surface, it is advantageously performed spherically.
  • An advantage of the invention can be seen in the fact that the stop line of the fabric comes to lie in a narrowly defined area and thus relative movements of the fabric edge along the reed are largely excluded when the weft thread is attached. As a result, the weft threads are woven in more evenly and a regular fabric image is created.
  • Fig. 1 parts of the sley 3 the fabric support 40 with a screwed with it holder 41 and the fabric 1 to the left of the reed 31 and the warp threads 2a and 2b to the right of the reed 31 are shown, with the diagonally upwards or obliquely downwards warp threads 2a and 2b stretched below the shed 2 is formed.
  • the anchor point of the Weave on the fabric 1 in the channel base 33 is designated with P.
  • the reed 31 is screwed into the shop profile 34 by means of a clamping piece 35.
  • An auxiliary nozzle block 36 is also screwed to the shutter profile 34, from which an auxiliary nozzle 36a protrudes.
  • FIG. 1 the sley 3 is drawn in the position in which the channel base 33 has conveyed into the weft thread, not shown, up to the stop line P of the fabric 1. At this moment the fabric stop begins in a swivel of the sley to the left.
  • the end of the tissue stop is shown in FIG. 2, the end of the guide surface 42 facing the guide channel 32 being just in front of the guide channel 32.
  • the stop line P has migrated somewhat downward along the channel base 33 in relation to FIG. 1. Since the position of the stop line P on the channel base can vary slightly from stop to stop, there are different conditions for the weft threads to be struck in each case. This can lead to an uneven weaving of the weft threads and bad tissue loss, especially with dense fabrics.
  • the fabric support in FIG. 3 has a beak-shaped projection 45, which results in a substantially enlarged guide surface 43 which extends close to the channel base 33 and is only a short distance from the upper channel wall 37.
  • the stop line P of the fabric lies here due to the relative positions of the guide surface 43, the upper guide wall 37 and the channel base 33 to each other just at the end of the arcuate transition between the upper channel wall 37 and the channel base 33.
  • the fabric support prevents the stop line P from slipping further below along the channel bottom 33, the arched transition 39 between the upper Channel wall 37 and the channel base 33 a sliding of the tissue or the stop line P in this transition area.
  • the fabric is thus in a precisely defined position at the end of the stop movement of the sley.
  • FIG. 4a an enlarged representation of a detail of the fabric and the warp threads 1 or 2a and 2b according to FIG. 3, the weft threads A, B, C, D,... I drawn in white are each slightly smaller Measure up or down next to each other. They are wrapped in the black warp threads 2a, 2b, usually not every warp thread comes to lie alternately above and below one and the adjacent weft thread A, B in the usual weaves.
  • the weft thread I is conveyed from the position between the warp threads 2a, 2b within the shed 2 to the stop line P by means of the reed 31, during which it comes to lie somewhat above the previously weft thread H, since the lower warp threads 2b are essential are tensioned more than the upper warp threads 2a. Due to the strong weaving-in of the warp threads, the weft thread I later, like the weft threads A, C, E, G, will assume a higher position than the other weft threads B, D, F, H, so that it no longer has its higher position than the weft thread H. needs to change significantly. The situation is different for the next weft thread K to be entered and attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)

Claims (3)

  1. Machine à tisser comprenant un battant (34) et un peigne (31) fixé sur ce dernier, formé de lamelles allongées profilées et dans lequel est usiné un canal (32) de guidage des fils de trame devant être insérés, le canal de guidage ayant une section en forme d'auge, comprenant un fond (33) parallèle aux lamelles individuelles et des parois (37, 38) sensiblement perpendiculaires à ce fond, ladite machine comprenant par ailleurs un élément (40) de soutien du tissu aboutissant au niveau du canal de guidage (32) et ayant à cette extrémité une surface (43) de guidage du tissu qui pénètre à l'intérieur du canal de guidage (32), caractérisée en ce que la surface (43) de guidage du tissu pénètre suffisamment à l'intérieur du canal de guidage (32), lorsque le battant est à la position la plus proche du tissu, pour que la distance la plus faible séparant la surface (43) de guidage du tissu et le fond (33) du canal soit inférieure à 3 mm et supérieure à 1 mm, et en ce que la distance séparant la surface (43) de guidage du tissu et la paroi supérieure (37) du canal est d'un ordre de grandeur de 1 mm, de manière que la ligne P de rabattement du tissu soit située à l'extrémité de la surface courbe (39) de transition entre la paroi supérieure (37) et le fond (33) du canal.
  2. Machine à tisser selon la revendication 1, caractérisée en ce que l'élément (40) de soutien du tissu comporte à l'extrémité tournée vers le tissu une protubérance (45) en forme de bec qui pénètre dans le canal de guidage (32).
  3. Machine à tisser selon la revendication 1, caractérisée en ce que la surface (43) de guidage du tissu est bombée.
EP89810796A 1988-11-10 1989-10-23 Métier à tisser avec support de tissu Expired - Lifetime EP0368799B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH417488 1988-11-10
CH4174/88 1988-11-10

Publications (2)

Publication Number Publication Date
EP0368799A1 EP0368799A1 (fr) 1990-05-16
EP0368799B1 true EP0368799B1 (fr) 1994-01-05

Family

ID=4271182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810796A Expired - Lifetime EP0368799B1 (fr) 1988-11-10 1989-10-23 Métier à tisser avec support de tissu

Country Status (4)

Country Link
US (1) US4997010A (fr)
EP (1) EP0368799B1 (fr)
JP (1) JPH02182947A (fr)
DE (1) DE58906640D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039088A (en) * 1998-09-30 2000-03-21 Steel Heddle Manufacturing Co. Reed assembly with angled dents
BE1017274A6 (nl) 2006-09-13 2008-05-06 Picanol Nv Weefselsteun voor een weefmachine.
JP5946313B2 (ja) * 2012-04-17 2016-07-06 津田駒工業株式会社 空気噴射式織機における織布支持装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336408A2 (fr) * 1988-04-07 1989-10-11 Lindauer Dornier Gesellschaft M.B.H Métier à jet d'air avec table élargisseuse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS219512B1 (en) * 1980-06-05 1983-03-25 Karel Vystrcil Picking channel of the jet loom
CH649586A5 (de) * 1981-03-05 1985-05-31 Rueti Ag Maschf Blattzahn fuer duesenwebmaschinen und unter verwendung des blattzahns hergestelltes webblatt.
US4532965A (en) * 1982-09-14 1985-08-06 Sulzer Brothers Limited Weft yarn picking channel
DE3234813C1 (de) * 1982-09-20 1984-01-19 Sulzer Ag Schußfadeneintragskanal für pneumatische Webmaschinen
FR2534603A1 (fr) * 1982-10-14 1984-04-20 Alsacienne Constr Mat Tex Dispositif permettant de favoriser l'insertion du fil de trame sur un metier a tisser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336408A2 (fr) * 1988-04-07 1989-10-11 Lindauer Dornier Gesellschaft M.B.H Métier à jet d'air avec table élargisseuse

Also Published As

Publication number Publication date
DE58906640D1 (de) 1994-02-17
EP0368799A1 (fr) 1990-05-16
US4997010A (en) 1991-03-05
JPH02182947A (ja) 1990-07-17

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