EP1462553A2 - Webblattzahn und Webblatt für Luftwebmaschinen mit einem solchen Zahn - Google Patents

Webblattzahn und Webblatt für Luftwebmaschinen mit einem solchen Zahn Download PDF

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Publication number
EP1462553A2
EP1462553A2 EP04356042A EP04356042A EP1462553A2 EP 1462553 A2 EP1462553 A2 EP 1462553A2 EP 04356042 A EP04356042 A EP 04356042A EP 04356042 A EP04356042 A EP 04356042A EP 1462553 A2 EP1462553 A2 EP 1462553A2
Authority
EP
European Patent Office
Prior art keywords
tooth
perforations
comb
dent
notch
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.)
Withdrawn
Application number
EP04356042A
Other languages
English (en)
French (fr)
Other versions
EP1462553A3 (de
Inventor
Joseph Scheiwe
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.)
Burckle et CIE Ets
Original Assignee
Burckle et CIE Ets
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 Burckle et CIE Ets filed Critical Burckle et CIE Ets
Publication of EP1462553A2 publication Critical patent/EP1462553A2/de
Publication of EP1462553A3 publication Critical patent/EP1462553A3/de
Withdrawn legal-status Critical Current

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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
    • D03D49/62—Reeds mounted on slay
    • 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
    • D03D47/278—Guide mechanisms for pneumatic looms

Definitions

  • the invention relates to a comb tooth and a comb or leaf for air jet weaving machine.
  • the picks are driven by an air jet perpendicular to the warp threads.
  • the juxtaposition of the teeth of a comb makes it possible to align their respective notches E and to constitute a channel for circulation of the weft threads and their drive air.
  • the teeth of relatively high mass do not have a great rigidity and undergo frequent fractures.
  • the invention relates to a tooth comb for an air jet weaving machine, this tooth being formed from a plate material and provided between two protrusions, a channel definition notch weft yarn circulation and their air drive, characterized in that at least one of the the aforementioned protuberances is provided with at least one lightening perforation.
  • the tooth is lightened at level of protuberances between which is defined the notch for the circulation of picks, these protuberances being, in fact, two relatively massive parts of the tooth.
  • tooth relief is performed in the area where it has the greatest effect.
  • the invention also relates to a comb or flapper for air jet weaving machine which is formed by the juxtaposition and assembly of teeth such as previously described.
  • a comb is compatible with the operation of an air loom, particularly with regard to concerns the definition of the circulation channel for frame and their training air, while it presents rigidity and inertia allowing operation at high speed.
  • the tooth 10 shown in Figure 1 is formed in a steel plate with a thickness between 0.2 and 0.5 mm, preferably between 0.3 and 0.4 mm. This plate is globally inscribed in an imaginary triangle T whose sides run along the main edges of tooth 10.
  • Tooth 10 is provided with a notch 12 defined between two protrusions 14 and 16 which protrude from a center line L parallel to the largest edge 18 of the tooth 10 and located midway between this edge and the vertex imaginary S of the triangle T close to the notch 12.
  • Z 1 the area of tooth 10 in which the notch 12 is formed.
  • 20 and 22 the ends of tooth 10 at which it can be immobilized in aluminum profiles 50 and 52 by being juxtaposed with identical teeth to form a comb or flap P, as shown partially in Figure 2.
  • the teeth can be immobilized in the rails 50 and 52 by injection of resin.
  • a first branch 24 extends between zone Z 1 and the end 20, while a second branch 26 extends between zone Z 1 and end 22.
  • perforations 30 are provided in protrusions 14 and 16, which allows to alleviate these protuberances which constitute a part relatively massive tooth 10.
  • the perforations 30 are circular and their diameter is noted d 30 .
  • the diameter d 30 smaller than the widths l 20 and l 22 , which prevents that, when several teeth 10 are stored in bulk or undergo a random movement in a deburring tank in contact with abrasive stones or in a product tank electrolysis, the ends 20 or 22 do not come to be plugged into one of the perforations 30 of a neighboring tooth 10.
  • perforations additional 30 are provided in branches 24 and 26.
  • the comb P is driven in an alternating rotational movement around an imaginary axis XX 'parallel to the rail 52 and located below the latter.
  • the double arrow F 1 represents this movement.
  • the base 32 has mechanical strength, according to his plan, superior to that of part 34 which is lighter
  • the tooth 110 of this embodiment comprises a notch 112 formed between two protuberances 114 and 116 in each of which is provided a perforation 130. There is no provision for lightening perforation in the branches 124 and 126 which extend respectively between the zone Z 1 in which is provided the notch 112 and the ends upper 120 and lower 122 of tooth 110.
  • the tooth 210 of this embodiment also includes a notch 212 formed between two protuberances 214 and 216
  • This embodiment differs from the first in that the perforations are provided in several sizes, namely perforations 230 a of relatively large diameter and perforations 230 b of smaller and variable diameter.
  • the use of two types of perforation makes it possible to optimize their distribution in the tooth 210, without mechanically weakening the latter, while giving it maximum lightness.
  • the tooth 310 of this embodiment also includes a notch 312 for passage of the weft yarns and their training air.
  • the protrusions 314 and 316 between which the notch 312 is defined there are provided several perforations 330 of relatively small diameter.
  • each branch 324 and 326 which connects the zone Z 1 in which the notch 312 is formed and the ends 320 and 322 of the tooth 310 is provided a row of perforations 330 'of diameter similar to that of the perforations 330.
  • perforations with circular or generally circular section has the particular advantage that these perforations can be produced with simple and easy-to-develop tools. They make it possible to optimize the distribution of the material subjected to stresses and to obtain a very resistant tooth.
  • the invention is applicable with perforations of non-circular section, as shown in FIG. 6 for the fifth embodiment where the elements similar to those of the first embodiment bear identical references increased by 400.
  • the tooth 110 of this embodiment is provided with two protrusions 414 and 416 between which a notch 412 is defined.
  • Perforations 430 a and 430 b are provided in these protrusions and in two branches 424 and 426.
  • the perforations 430 a are circular, while the perforations 430 b are generally triangular, with rounded vertices.
  • the teeth according to the invention are advantageously made of a metal plate, especially steel. However, they can be performed in another material.
  • the first, third, fourth and fifth modes have the advantage that the perforations are generally regularly distributed over the surface teeth 10, 210 and 310, which improves the effect relief sought.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP04356042A 2003-03-28 2004-03-26 Webblattzahn und Webblatt für Luftwebmaschinen mit einem solchen Zahn Withdrawn EP1462553A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0303887A FR2852975B1 (fr) 2003-03-28 2003-03-28 Dent de peigne et peigne pour machine a tisser a jet d'air incorporant une telle dent
FR0303887 2003-03-28

Publications (2)

Publication Number Publication Date
EP1462553A2 true EP1462553A2 (de) 2004-09-29
EP1462553A3 EP1462553A3 (de) 2005-08-10

Family

ID=32799779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356042A Withdrawn EP1462553A3 (de) 2003-03-28 2004-03-26 Webblattzahn und Webblatt für Luftwebmaschinen mit einem solchen Zahn

Country Status (2)

Country Link
EP (1) EP1462553A3 (de)
FR (1) FR2852975B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016547A3 (nl) * 2005-03-15 2007-01-09 Picanol Nv Riet voor een weefmachine en weefmachine.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1064960A (en) * 1964-10-09 1967-04-12 Frederick Greenwood & Sons Ltd Improvements in or relating to the manufacture of reeds for looms for weaving
GB1285962A (en) * 1968-08-12 1972-08-16 Strake Maschf Nv Jet loom
US4457344A (en) * 1980-11-20 1984-07-03 Sulzer Brothers Limited Reed for a weaving machine
US4529014A (en) * 1983-08-29 1985-07-16 Steel Heddle Mfg., Co. Loom reed with plastic profiled dents
EP0691430A1 (de) * 1994-07-05 1996-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Schussfadeneintragsvorrichtung in eine Luftdüsenwebmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1064960A (en) * 1964-10-09 1967-04-12 Frederick Greenwood & Sons Ltd Improvements in or relating to the manufacture of reeds for looms for weaving
GB1285962A (en) * 1968-08-12 1972-08-16 Strake Maschf Nv Jet loom
US4457344A (en) * 1980-11-20 1984-07-03 Sulzer Brothers Limited Reed for a weaving machine
US4529014A (en) * 1983-08-29 1985-07-16 Steel Heddle Mfg., Co. Loom reed with plastic profiled dents
EP0691430A1 (de) * 1994-07-05 1996-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Schussfadeneintragsvorrichtung in eine Luftdüsenwebmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016547A3 (nl) * 2005-03-15 2007-01-09 Picanol Nv Riet voor een weefmachine en weefmachine.

Also Published As

Publication number Publication date
FR2852975A1 (fr) 2004-10-01
FR2852975B1 (fr) 2005-09-09
EP1462553A3 (de) 2005-08-10

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