EP0229588A1 - Métier à tisser à jet d'air - Google Patents
Métier à tisser à jet d'air Download PDFInfo
- 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
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)
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)
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)
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)
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)
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 | GebràDer Sulzer Aktiengesellschaft | Métier à tisser à jet d'air |
GB8529809D0 (en) * | 1985-12-04 | 1986-01-15 | Dermalex Co Ltd | Air supply & control apparatus |
-
1986
- 1986-10-09 DE DE8686810448T patent/DE3672990D1/de not_active Expired - Fee Related
- 1986-10-09 EP EP86810448A patent/EP0229588B1/fr not_active Expired - Lifetime
- 1986-12-08 US US06/939,134 patent/US4784188A/en not_active Expired - Fee Related
- 1986-12-19 JP JP61301918A patent/JPS62156340A/ja active Granted
Patent Citations (3)
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)
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 |
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