EP0229588A1 - Métier à tisser à jet d'air - Google Patents

Métier à tisser à jet d'air Download PDF

Info

Publication number
EP0229588A1
EP0229588A1 EP86810448A EP86810448A EP0229588A1 EP 0229588 A1 EP0229588 A1 EP 0229588A1 EP 86810448 A EP86810448 A EP 86810448A EP 86810448 A EP86810448 A EP 86810448A EP 0229588 A1 EP0229588 A1 EP 0229588A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
weft
thread guide
jet
weft insertion
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.)
Granted
Application number
EP86810448A
Other languages
German (de)
English (en)
Other versions
EP0229588B1 (fr
Inventor
Hubert Peter Van Mullekom
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
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0229588A1 publication Critical patent/EP0229588A1/fr
Application granted granted Critical
Publication of EP0229588B1 publication Critical patent/EP0229588B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/3086—Weft removal
    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • 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
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the invention relates to an air jet weaving machine with a weft insertion nozzle arranged outside the shed and a weft deflection device arranged between it and the shed for keeping the weft away from the shed after a signal for stopping the loom as a result of a fault and with a thread guide.
  • the weft insertion nozzle is pivoted from the normal position into an obliquely upward position in front of the inlet mouth into a suction device, so that the weft thread is directed away from the firing channel into the suction device.
  • a thread guide is attached to the scissors for cutting off the weft thread, which thread guide is also intended to guide the thread into the area between the scissor wings when it has been derived from the suction device which is located above the weft insertion channel.
  • the weft deflecting device mentioned has the disadvantage that the insertion nozzle must be provided with a drive mechanism and must also be articulated.
  • the present invention has for its object to provide an air weaving machine with a weft deflecting device improved in this regard, in which no additional movement of the elements involved is necessary to initiate the deflection process.
  • the invention consists in that the weft deflecting device is composed of a blowing nozzle arranged transversely to the free jet from the weft insertion nozzle and a funnel lying in the same direction, the jet from the blowing nozzle crossing the free jet from the weft insertion nozzle.
  • the thread guide viewed from the weft entry nozzle, is arranged transversely next to the free jet in front of the crossing point between the free jet from the entry nozzle and the jet from the blow nozzle.
  • the thread guide is also arranged transversely to the jet from the blow nozzle after the point of intersection between the free jet and the jet from the blow nozzle.
  • the thread guide must extend at least over a length which corresponds to the range of movement of the weft insertion nozzle transversely to the weft insertion direction, the fader guide lying in the direction of movement of the weft insertion nozzle.
  • the end of the thread guide facing the reed lies in the weft insertion direction in front of the plane in which the mouth of the insertion nozzle moves. Its other end lies behind the plane in which the scissors move during cutting so that the weft thread is safely inserted into the scissors.
  • the thread guide can be an extension of one of the scissor wings.
  • the blowing nozzle of the weft deflecting device is above the weft insertion nozzle in the insertion direction their mouth arranged vertically downward, and the funnel for catching the weft thread is underneath within the weaving loom of the weaving machine.
  • the device described is characterized by a small footprint and simple construction.
  • the weft thread 5 is drawn off from the weft thread bobbin 50 and blown along the reed 1 by means of the insertion nozzle 61.
  • the warp threads run from the warp beam 16 over the shafts 17 through the reed 1 and, after the weft thread 5 has been inserted and attached, are wound onto the fabric beam 18 as a fabric 19.
  • the inlet nozzle 61 and the blowing nozzle 7 are fastened to the housing 30, while a suction funnel sits on the reed profile 2 below the blowing nozzle 7.
  • the weft thread is blown through the entry nozzle 61 or 62 into the guide channel 12 according to FIG. 2 within the shed 15.
  • the guide channel 12 is formed by the reed 1 as shown in FIG. 1.
  • the guide channel 12 is located in the shed 15 formed by the warp threads 13 and 14 stretched over the weaving width.
  • the reed 1 is fastened in the reed profile 2, which is connected to the shaft 4 via several levers 3.
  • the whole arrangement between reed 1 and shaft 4 is referred to as a sley 10.
  • the sley moves together with the insertion nozzles 61 and 62 according to the rotation of the shaft 4 in the direction of the arrow 41. At the end of this movement, the entry nozzles are in the position 61 ⁇ or 62 ⁇ behind the scissors 8 in FIG. 1, where the weft thread is cut off.
  • the sley then swings back against arrow 41. If the weaving machine is automatically stopped as a result of a fault, a weft thread that has already been prepared for the entry should no longer reach the area of the shed 15. It is then discharged through the blowing nozzle 7 past the thread guide 90 into the funnel 23 and into the transport line 22 within the reed profile 2.
  • the weft deflecting device thus consists of a blowing nozzle 7 above the outlet opening of the entry nozzle 61 and 62, the thread guide 90 and the funnel 23, which sits in the reed profile by means of an end piece 24. A negative pressure prevails in the funnel 23 and in the transport line 22 so that the weft thread 5 can be sucked off.
  • the weft thread 5 is deflected downward by the air flow from the blowing nozzle 7 and thus plunges directly into the funnel 23.
  • the end of the thread guide 90 is located below the entry nozzles 61 and 62 to the left of the outlet openings from these nozzles Fig. 2.
  • the main nozzles move in the direction position 61 ⁇ or 62 ⁇ in the area of the scissors 8.
  • the weft glides over the edge curved slightly downward to the right in FIG. 2 along the dash-dotted line 91 between the scissor wings 81 and 82.
  • the scissor blade 83 is fastened to the latter in an exchangeable manner.
  • the funnel 23 at the beginning of the transport line 22 is then, according to FIG. 1, below the scissors 8 in position 23 ⁇ .
  • the deflection process is ended.
  • Fig. 3 on a smaller scale compared to Fig. 2 in a section along line III - III of this figure, an intermediate position during the deflection process is shown, in which the weft thread is located just above the cutting plane III - III in Fig. 2.
  • the thread guide 90, the lower scissor wing 82 and the fastening flange 84 are integrated in a single element which also carries the upper scissor wing 81 by means of the axis 86.
  • the flange 84 is screwed to a housing 30.
  • the upper scissor blade moves according to arrow 87 about the axis 86 and slides over the scissor blade 83 on the lower scissor blade 81.
  • the thread guide 90 can also be fastened to the housing 30 without a direct connection to the lower scissor wing 82, if it is designed such that the weft thread is tensioned at the end of the deflection process by means of the insertion nozzle 61 or 62 through the free space between the scissor wings 81 and 82 is.
  • the thread guide 90 can also be used in air-jet weaving machines which have only one pair of scissors 61 or more than two pair of scissors 61, 62.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP86810448A 1985-12-20 1986-10-09 Métier à tisser à jet d'air Expired - Lifetime EP0229588B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH545585 1985-12-20
CH5455/85 1985-12-20

Publications (2)

Publication Number Publication Date
EP0229588A1 true EP0229588A1 (fr) 1987-07-22
EP0229588B1 EP0229588B1 (fr) 1990-07-25

Family

ID=4293883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810448A Expired - Lifetime EP0229588B1 (fr) 1985-12-20 1986-10-09 Métier à tisser à jet d'air

Country Status (4)

Country Link
US (1) US4784188A (fr)
EP (1) EP0229588B1 (fr)
JP (1) JPS62156340A (fr)
DE (1) DE3672990D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318802A1 (fr) * 1987-12-01 1989-06-07 Lindauer Dornier Gesellschaft M.B.H Système d'insertion de la trame pour machines à tisser pneumatiques avec au moins deux tuyères réunies en faisceau

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073022B2 (ja) * 1987-09-19 1995-01-18 株式会社豊田自動織機製作所 織機における不良緯糸処理装置
DE4000856A1 (de) * 1990-01-13 1991-07-18 Dornier Gmbh Lindauer Schussseitig angeordnete fadenschneidevorrichtung einer luftwebmaschine
JP2003342857A (ja) * 2002-05-28 2003-12-03 Tsudakoma Corp 織機における緯糸処理方法
EP2050847B1 (fr) * 2007-10-19 2012-08-29 Siemens Aktiengesellschaft Procédé de transport d'un fil de trame par une foule d'une machine à tisser

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090294A (en) * 1980-12-30 1982-07-07 Saurer Diederichs Sa Device comprising a movable nozzle for the pneumatic insertion of the weft in a shuttle-less loom
EP0094089A2 (fr) * 1982-05-11 1983-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Procédé et dispositif pour retirer un fil de trame dans un métier à jet de fluide
EP0150763A2 (fr) * 1983-12-28 1985-08-07 Nissan Motor Co., Ltd. Métier à tisser

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS230360B1 (en) * 1981-03-02 1984-08-13 Jiri Novak Weaving machine
US4502512A (en) * 1982-07-21 1985-03-05 Seisakusho Kabushiki Kaisha Toyoda Jidoshokki Method for treating a weft yarn upon stoppage of a shuttleless loom and device for effecting the same
US4531555A (en) * 1983-01-19 1985-07-30 Toray Industries, Inc. Yarn cutter for shuttleless loom
EP0161376A1 (fr) * 1984-05-18 1985-11-21 GebràœDer Sulzer Aktiengesellschaft Métier à tisser à jet d'air
GB8529809D0 (en) * 1985-12-04 1986-01-15 Dermalex Co Ltd Air supply & control apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090294A (en) * 1980-12-30 1982-07-07 Saurer Diederichs Sa Device comprising a movable nozzle for the pneumatic insertion of the weft in a shuttle-less loom
EP0094089A2 (fr) * 1982-05-11 1983-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Procédé et dispositif pour retirer un fil de trame dans un métier à jet de fluide
EP0150763A2 (fr) * 1983-12-28 1985-08-07 Nissan Motor Co., Ltd. Métier à tisser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318802A1 (fr) * 1987-12-01 1989-06-07 Lindauer Dornier Gesellschaft M.B.H Système d'insertion de la trame pour machines à tisser pneumatiques avec au moins deux tuyères réunies en faisceau

Also Published As

Publication number Publication date
DE3672990D1 (de) 1990-08-30
US4784188A (en) 1988-11-15
JPS62156340A (ja) 1987-07-11
JPH0310747B2 (fr) 1991-02-14
EP0229588B1 (fr) 1990-07-25

Similar Documents

Publication Publication Date Title
CH661538A5 (de) Vorrichtung zum entfernen von schussfaeden aus einer webmaschine.
DE2845299C2 (de) Schützenlose Greifer-Webmaschine
DE1710296C3 (de) Pneumatische Reinigungseinrichtung für eine Webmaschine
EP0318802B1 (fr) Système d'insertion de la trame pour machines à tisser pneumatiques avec au moins deux tuyères réunies en faisceau
DE69116672T2 (de) Vorrichtung zum Strecken eines Schussfadens in einer Webmaschine
CH622563A5 (fr)
DE3130989C2 (fr)
DE2264299C3 (de) Vorrichtung zum Abscheiden von aufgelösten Faserflocken aus einem Förderluftstrom
DE3819426C2 (fr)
EP0229588B1 (fr) Métier à tisser à jet d'air
CH584302A5 (en) Pneumatic cleaning device for tape-weaving machine - formed by blower pipe located below shed and a suction hood disposed above shed over pipe
DE2659732C2 (de) Düsenwebmaschine mit einem Schußgarnspeicher
EP0562213B1 (fr) Appareil pneumatique pour la formation de lisières dans les métiers à tisser
EP0716171B1 (fr) Dispositif de tension et de détection de la trame pour métiers à tisser à jet d'air
WO2000063473A1 (fr) Buse auxiliaire pour metier a tisser mecanique
EP0228342B1 (fr) Métier à tisser à jet d'air
EP0137069A1 (fr) Dispositif pour le nettoyage du côté insertion d'un métier à tisser
CH653060A5 (de) Schusseintragskanal an einer duesenwebmaschine.
DE1735022B2 (de) Pneumatische Reinigungsvorrichtung für Webstühle
EP0421924B1 (fr) Procédé et dispositif pour réparer les casse-fil dans un métier à tisser
DE4213754C1 (de) Einrichtung zum pneumatischen Führen turbulenter Schußfadenenden einer Hilfsgewebeleiste in Luftdüsenwebmaschinen
DE3821224C1 (en) Air-jet weaving machine for multi-web weaving
CH682573A5 (de) Vorrichtung zum Entfernen eines fehlerhaften Schussfadens an einer Luftdüsenwebmaschine.
CH640016A5 (de) Einrichtung zum zubringen eines schussfadens an einer schuetzenlosen webmaschine.
EP1927691B1 (fr) Dispositif et procédé de maintien de trame pour un métier à tisser à pince

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19861011

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR IT

17Q First examination report despatched

Effective date: 19890508

RBV Designated contracting states (corrected)

Designated state(s): BE DE IT

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE IT

REF Corresponds to:

Ref document number: 3672990

Country of ref document: DE

Date of ref document: 19900830

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19901108

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901130

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19911031

BERE Be: lapsed

Owner name: GEBRUDER SULZER A.G.

Effective date: 19911031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051009