EP1055753A1 - Procédé pour limiter l'ouverture de la foule et limiteur de foule - Google Patents

Procédé pour limiter l'ouverture de la foule et limiteur de foule Download PDF

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Publication number
EP1055753A1
EP1055753A1 EP00109781A EP00109781A EP1055753A1 EP 1055753 A1 EP1055753 A1 EP 1055753A1 EP 00109781 A EP00109781 A EP 00109781A EP 00109781 A EP00109781 A EP 00109781A EP 1055753 A1 EP1055753 A1 EP 1055753A1
Authority
EP
European Patent Office
Prior art keywords
shed
opening angle
tines
weft
compartment
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Withdrawn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
EP00109781A
Other languages
German (de)
English (en)
Inventor
Josef Hehle
Werner Birner
Herbert Reinhardt
Peter Czura
Hans-Dieter Dr. Scorl
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1055753A1 publication Critical patent/EP1055753A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/40—Forming selvedges
    • D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing

Definitions

  • the invention relates to a method for limiting the shed opening during manufacture a fabric with at least one insertion edge of predetermined insertion depth Looms, after which in a formed by shedding organs, from lower warp threads and Upper warp threads existing front compartment with a compartment opening angle ⁇ close to
  • the free end of at least one set weft thread is returned to a following front compartment by means of at least one air jet and after which the returned free end together with at least one following Weft within a subsequent weft insertion period by means of a reed to the The edge of the fabric is struck.
  • the invention further relates to a shed limiter for performing the method.
  • the object is achieved in that the compartment opening angle ⁇ of the front compartment formed by the compartment forming members between the lower and upper compartment is limited to a compartment opening angle ⁇ 1 over the insertion depth of the insert edge to be formed, the compartment opening angle ⁇ 1 being smaller than that Compartment opening angle ⁇ is.
  • This has the advantage that an oscillation or flutter of the free weft end in the direction of the lower and upper warp threads is limited and in this connection the at least one air jet returning the weft end into the shed can act more specifically on the weft end than is the case with a wide open one Front compartment is the case.
  • a shed limiter consisting of a carrier part of a carrier extending in the direction of the vertical shed opening, which carrier part has a fork-shaped structure, consisting of a first prong and a second prong vertically spaced apart and axially parallel.
  • the two tines are attached to the carrier part laterally and outside the front compartment.
  • the first or upper prong and the second or lower prong extend with their free end, corresponding to the intended insertion depth, approximately at a right angle to the warp of the front compartment.
  • the relevant upper and lower warp threads of the front compartment are guided between the two prongs in such a way that on the one hand the compartment opening angle ⁇ of the front compartment is limited to a compartment opening angle ⁇ 1 at a sufficient distance from the reed and on the other hand by the shedding organs, and thereby ⁇ 1 is smaller than ⁇ .
  • the shed delimiter can be moved within the front shed, i.e. between the shed organs and the reed, in the x, y and z planes and the tines themselves about their arrangement axis adjustable on the support part.
  • its free end is detachably connected to a suitable machine part of the weaving machine with a suitable means.
  • the figure shows a schematic representation of the shed delimiter 4, which is arranged between the shedding organs 2 and the reed 3 of a weaving machine 1 and is designed according to the invention.
  • the shed delimiter 4 is a fork-shaped structure with a first prong 4a and a second prong 4b, which are arranged on a vertically oriented support part 5a of a support 5 extending approximately parallel to the weaving plane, which is not expressly specified.
  • the tines 4a, 4b run at right angles to the warp and parallel to one another and overlap the lower warp threads 6b and the upper warp threads 6a in the edge region of the warp over a predetermined width 7a of the total weaving width 7, the predetermined width 7a being approximately the same Width of the insertion edge 8a to be formed or approximately the insertion depth on the fabric web 8 corresponds.
  • the free ends of the tines 4a, 4b are angled in such a way that a collision with the lower warp threads 6b and the upper warp threads 6a, which are not subject to any shed limitation, is excluded.
  • the shed delimiter 4 narrows the front shed 6, which in itself forms a shed opening angle ⁇ , between the shed forming organs 2 and the reed 3 of the weaving machine 1 to a shed opening angle ⁇ 1.
  • the front compartment 6 begins at the corresponding shedding means of the shedding organ 2 and ends at the stop edge 8b of the fabric web 8.
  • a so-called pneumatic insert 9 is positioned laterally next to the front compartment 6 and near the stop edge 8b of the fabric web 8, which pneumatically detects the free end 10a of a weft thread 10 struck on the stop edge 8b by means of the reed 3 and bound by the warp threads and into a formed front compartment 6 pneumatically to form a fabric edge (insert edge).
  • the compartment opening angle ⁇ Edge warp threads limited to an opening angle ⁇ 1, which causes the free flutter End 10a of the weft thread 10 in the vertical direction during pneumatic insertion is reduced and thus a passage of the weft ends 10a through the gaps between the lower warp threads 6b or the upper warp threads 6a in the insertion depth or width 7a is avoided.
  • the shed opening angle ⁇ in the corresponding warp threads of the lower and upper shed is reduced to a shed opening angle ⁇ 1 by means of the shed limiter 4 according to the invention, as can be seen from the drawing.
  • the tines 4a and 4b of the shed limiter 4 on the carrier part 5a can be adjusted about their arrangement axis 4a 'or 4b' in such a way that starting From the shed opening angle ⁇ , an optimally adjusted and limited shed opening angle ⁇ 1 can be achieved under the conditions of the edge formation, in particular with regard to the position of the end 10a of the weft thread 10 to be returned.
  • the shed opening angle ⁇ 1 must therefore not be smaller than the clear height of the weft insertion channel 3a in the reed 3.
  • the carrier 5 of the limiter 4 is fastened to a suitable machine-fixed arrangement 12 of the weaving machine 1 by a fastening element 13 in such a way that it is fixed in the direction of the x -, y- and z-axis is adjustable. With an adjustment in the z-axis, for example, the shed limiter 4 can be set to any insertion depth or width 7a if its tines 4a, 4b have the corresponding longitudinal extent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
EP00109781A 1999-05-28 2000-05-09 Procédé pour limiter l'ouverture de la foule et limiteur de foule Withdrawn EP1055753A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924689A DE19924689C1 (de) 1999-05-28 1999-05-28 Verfahren zum Begrenzen der Webfachöffnung und Webfachbegrenzer
DE19924689 1999-05-28

Publications (1)

Publication Number Publication Date
EP1055753A1 true EP1055753A1 (fr) 2000-11-29

Family

ID=7909614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109781A Withdrawn EP1055753A1 (fr) 1999-05-28 2000-05-09 Procédé pour limiter l'ouverture de la foule et limiteur de foule

Country Status (4)

Country Link
US (1) US6240975B1 (fr)
EP (1) EP1055753A1 (fr)
JP (1) JP2000355855A (fr)
DE (1) DE19924689C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1710168B (zh) * 2004-06-18 2011-07-06 圣豪纺织机械有限公司 双面绒头织机上的提花绒头经纱的梭口形成的方法和装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7048011B2 (en) * 2003-09-10 2006-05-23 Printing Research, Inc. Printing press cylinder flexible jacket covering
CN101724956B (zh) * 2009-11-23 2012-03-07 江苏万工科技集团有限公司 喷气织机的开口方法
DE102011009765B3 (de) * 2011-01-28 2011-11-10 Lindauer Dornier Gmbh Webmaschine mit verfahrbaren Begrenzungsmitteln sowie ein Verfahren zum Herstellen eines Gewebes

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR837656A (fr) * 1937-10-30 1939-02-15 Perfectionnements aux métiers à tisser à alimentation continue
US2938547A (en) * 1956-03-20 1960-05-31 Dewas Raymond Weft holding means for weaving looms with continuous weft feed
FR1494833A (fr) * 1965-06-28 1967-09-15 Grille de verrouillage de trame dans un métier à tisser et procédé d'utilisation de cette grille
GB1327924A (en) * 1970-04-30 1973-08-22 Rueti Ag Maschf Method of and apparatus for forming an auxiliary selvage on a woven fabric
FR2262139A1 (en) * 1974-02-25 1975-09-19 Mackie & Sons Ltd J Shuttleless loom warp control mechanism - uses deflection rods to give some warps a flabby character during shed changes
EP0083905A1 (fr) * 1982-01-13 1983-07-20 GebràœDer Sulzer Aktiengesellschaft Métier pour tissu éponge comportant un élargisseur s'étendant dans la direction trame entre le pergne et la poitrinière
EP0534429A1 (fr) * 1991-09-23 1993-03-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Procédé pour former une lisière à bout rentré sur un métier à tisser sans navette, plus particulièrement à jet d'air et dispositif pour exécuter ce procédé

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080037B (de) * 1956-03-20 1960-04-14 Raymond Dewas Vorrichtung zur Sicherung des freien Schussfadenteiles bei Webmaschinen mit Entnahmedes Schussfadens von feststehenden Spulen
DE1257696B (de) * 1962-10-12 1967-12-28 Rueti Ag Maschf Webkantenbildevorrichtung fuer Webmaschinen mit Entnahme des Schussfadens von ortsfesten Spulen
CH659089A5 (de) * 1983-06-09 1986-12-31 Saurer Ag Adolph Webmaschine.
DE4443899C1 (de) 1994-12-09 1995-11-23 Dornier Gmbh Lindauer Webmaschine mit einer Kombination aus Schneidvorrichtung und Einleger
DE19548846C1 (de) 1995-12-27 1996-10-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einlegen eines Schußfadens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR837656A (fr) * 1937-10-30 1939-02-15 Perfectionnements aux métiers à tisser à alimentation continue
US2938547A (en) * 1956-03-20 1960-05-31 Dewas Raymond Weft holding means for weaving looms with continuous weft feed
FR1494833A (fr) * 1965-06-28 1967-09-15 Grille de verrouillage de trame dans un métier à tisser et procédé d'utilisation de cette grille
GB1327924A (en) * 1970-04-30 1973-08-22 Rueti Ag Maschf Method of and apparatus for forming an auxiliary selvage on a woven fabric
FR2262139A1 (en) * 1974-02-25 1975-09-19 Mackie & Sons Ltd J Shuttleless loom warp control mechanism - uses deflection rods to give some warps a flabby character during shed changes
EP0083905A1 (fr) * 1982-01-13 1983-07-20 GebràœDer Sulzer Aktiengesellschaft Métier pour tissu éponge comportant un élargisseur s'étendant dans la direction trame entre le pergne et la poitrinière
EP0534429A1 (fr) * 1991-09-23 1993-03-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Procédé pour former une lisière à bout rentré sur un métier à tisser sans navette, plus particulièrement à jet d'air et dispositif pour exécuter ce procédé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1710168B (zh) * 2004-06-18 2011-07-06 圣豪纺织机械有限公司 双面绒头织机上的提花绒头经纱的梭口形成的方法和装置

Also Published As

Publication number Publication date
JP2000355855A (ja) 2000-12-26
DE19924689C1 (de) 2001-05-17
US6240975B1 (en) 2001-06-05

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