EP0619391A1 - Système d'insertion pour un métier à tisser à jet d'air - Google Patents

Système d'insertion pour un métier à tisser à jet d'air Download PDF

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Publication number
EP0619391A1
EP0619391A1 EP94103176A EP94103176A EP0619391A1 EP 0619391 A1 EP0619391 A1 EP 0619391A1 EP 94103176 A EP94103176 A EP 94103176A EP 94103176 A EP94103176 A EP 94103176A EP 0619391 A1 EP0619391 A1 EP 0619391A1
Authority
EP
European Patent Office
Prior art keywords
main blowing
elements
blowing nozzle
entry system
stationary elements
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
EP94103176A
Other languages
German (de)
English (en)
Other versions
EP0619391B1 (fr
Inventor
Hugo Markey
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.)
Picanol NV
Original Assignee
Picanol NV
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=3886953&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0619391(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Picanol NV filed Critical Picanol NV
Publication of EP0619391A1 publication Critical patent/EP0619391A1/fr
Application granted granted Critical
Publication of EP0619391B1 publication Critical patent/EP0619391B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D03D47/28—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
    • D03D47/3026—Air supply systems
    • D03D47/306—Construction or details of parts, e.g. valves, ducts
    • 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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles

Definitions

  • the invention relates to an entry system for an air-jet weaving machine with at least one main blowing nozzle, which is arranged on a sley, and with means for supplying compressed air to this main blowing nozzle, which contain stationary elements and moving elements with the main blowing nozzle, with an outlet of the stationary elements and an input of a flexible pressure line is provided with the elements moving with the main blowing nozzle.
  • the pressure line has to deform due to the relative movement between the stationary elements of the means for supplying compressed air and the elements moving with the sley and the main blowing nozzle.
  • relatively long pressure lines are provided in the known entry systems.
  • the relatively large length of the pressure lines has the disadvantage that correspondingly large pressure losses occur in the pressure line. This can result in the main blowing nozzle being affected. It is possible to reduce these pressure losses by increasing the diameter of the pressure line.
  • the invention has for its object to improve an entry system for an air jet machine of the type mentioned.
  • the stationary elements are arranged above the main blowing nozzle in such a way that the outlet of the stationary elements is arranged essentially above the input of the elements moving with the main blowing nozzle.
  • the design according to the invention has the advantage that the pressure line between the stationary elements of the means for supplying compressed air and the elements moving with the main blowing nozzle can be kept relatively short, without the pressure line being exposed to high loads and corresponding wear. Even with lines with a relatively small cross-section that enable rapid pressure build-up, the line losses are kept low.
  • the entry system (1) shown in FIGS. 1 and 2 contains two main blowing nozzles (2, 3) which are arranged on a sley (4).
  • the sley (4) has a sley axis (5) on which a sley profile (6) is fastened with screws (7).
  • the sley profile (6) has an undercut groove (8) running in its longitudinal direction (A) and thus in the direction of the sley axis (5).
  • the main blowing nozzles (2, 3) are each provided with a holder (9, 10) which are fastened to the webs (12) on both sides of the longitudinal groove (8) by means of screwing means (11).
  • This type of attachment makes it possible to adjust the main blowing nozzles (2, 3) in the longitudinal direction (A) (direction of the shutter axis 5). This adjustment is advantageous in order to adapt the position of the main blowing nozzles (2, 3) to different widths of the fabric to be produced.
  • the entry system (1) also contains switchable valves (13, 14) which are assigned to the main blowing nozzles (2, 3). These valves (13, 14) are attached to lugs (15, 16) of a holder (17). The outputs (18, 19) of the valves (13, 14) are connected to the inputs (20, 21) of the main blowing nozzles (2, 3) by means of pressure lines (22, 23).
  • a reed (45) is also fastened to the weaving profile (6) by means of a clamping part (46) and screwing means (47). The screwing means (47) work together with the longitudinal groove (8) of the weaving profile (6). The reed (45) is not shown in Fig. 2.
  • At least one pressure accumulator (24) or buffer is provided in the holder (17) and is connected to the valves (13, 14) via lines (25, 26) created within the projections (15, 16).
  • the pressure accumulator (24) and the lines (25, 26) are shown in FIG. 2 with dashed lines. This arrangement makes it possible to keep pressure losses in the lines (25, 26) low.
  • the holder (17) has side elements (27) which are provided with screwing means (28), by means of which the holder (17) is fastened to a profiled support (29) of the machine frame.
  • the carrier (29) has at least one undercut longitudinal groove (31) delimited by webs (30) and runs in the longitudinal direction (A), ie parallel to the weaving axis (5). This type of attachment allows the holder (17) together with the pressure accumulator (24) and the valves (13, 14) to be simple and quick to adjust lengthways (A). It is also possible to easily replace the valves (13, 14) in the event of a fault.
  • the sley (4) is provided with a drive (32) shown schematically in FIG. 2.
  • This drive (32) contains, for example, a lever (33) which is attached in a rotationally fixed manner to the weaving axis (5) and which is connected to a drive rod (35) via a pin (34).
  • the lever (33) together with the weaving axis (5) can be moved back and forth about the axis of rotation (48) between the end positions (36, 37) shown in broken lines. Due to this movement, the inlet (20) of the main blowing nozzle (2) between the end positions (38, 39) shown in dashed lines is also moved back and forth about the axis of rotation (48). Likewise, the inlet (21) of the main blowing nozzle (3) is moved back and forth between the end positions (40, 41) shown in broken lines about the axis of rotation (48) of the weaving axis (5).
  • the outlets (18, 19) of the two valves (13, 14) are not only arranged above the inlets (20, 21) of the corresponding main blowing nozzles (2, 3), but also in such a way that the outputs (18, 19) of the valves (13, 14) are each arranged almost centrally to the end positions (38, 39; 40, 41) of the inputs (20, 21) of the associated main blowing nozzles (2, 3).
  • the outlet (18) of the valve (13) is approximately - in a view in the longitudinal direction (A) - in the bisector (42) between the end positions (38, 39).
  • the outlet (19) of the valve (14) is also approximately at the bisector (43) between the end positions (40, 41) of the main blowing nozzle (3) when viewed in the longitudinal direction (A).
  • the outputs (18, 19) of the valves (13, 14) are arranged at least approximately mirror-symmetrically to a radial surface (44) which extends radially to the weaving axis (4) through the area of the inputs (20 , 21) of the main blowing nozzles (2, 3) runs.
  • the inlets (20, 21) of the main blowing nozzles (2, 3) are also arranged at least approximately symmetrically to this radial surface (44). This arrangement makes it possible to make the pressure lines (22, 23) at least approximately the same length.
  • the pressure lines (22, 23) have sections (49, 50) running in the longitudinal direction (A) of the sley (4) (parallel to the sley axis 5), which connect to the outputs (18, 19) of the valves (12, 13 ) are connected. They also have sections (51, 52) which run essentially radially to the weaving axis (in direction B perpendicular to direction A) and which are connected to the inlets (20, 21) of the main blowing nozzles (2, 3). With this arrangement, the deformations of the pressure lines (22, 23) during the movement of the sley (4) are relatively small.
  • sections extending in the longitudinal direction (A) connect to the inputs of the main blowing nozzles (2, 3) and sections extending essentially in the radial direction to the outputs (18, 19) of the valves (13, 14) .
  • Combinations of the arrangements described are also possible.
  • more than two main blowing nozzles (2, 3) are provided, which then cooperate accordingly with more than two switchable valves (13, 14).
  • the lugs (15, 16) of the holder (17) a plurality of valves are attached, all of which are likewise arranged essentially centrally between the end positions of the inlets of the corresponding number of main blowing nozzles. It is also possible to provide several pressure accumulators in the holder (17), for example one pressure accumulator for each line (25, 26).
  • the main blowing nozzles (2, 3) are pushed close to the weaving reed (45) in the longitudinal groove (8), after which the main blowing nozzles (2, 3) are screwed onto the weaving frame profile (6) using the screwing means (11). be fixed.
  • the holder (17) is also displaced along the carrier (29) until the valves (13, 14) are almost symmetrical to the radial surface (44), after which the holder (17) with the aid of the screwing means (28) on the carrier (29 ) is fixed.
  • the means for supplying compressed air to the main blowing nozzles (2, 3) (apart from compressed air supply devices for the pressure accumulator 24, not shown) contain the pressure accumulator (24) and the valves (13, 14) with the outputs ( 18, 19).
  • the elements which move with the main blowing nozzles (2, 3) in this case are only the entrances (20, 21) to the main blowing nozzles (2, 3).
  • the switchable valves (13, 14) are attached directly to the holders (9, 10) of the main blowing nozzles (2, 3) or directly to the main blowing nozzles (2, 3) or to the sley (4) , so that these valves then belong with their inputs to the elements moving with the main blowing nozzles (2, 3).
  • the carrier (29) which belongs to the machine frame, is arranged such that it lies outside a shedding mechanism and does not impair its work. It does not matter whether a jacquard, a dobbie, a cam system, an eccentric system or any other system is provided as the shedding mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP94103176A 1993-04-06 1994-03-03 Système d'insertion pour un métier à tisser à jet d'air Expired - Lifetime EP0619391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9300339A BE1006981A3 (nl) 1993-04-06 1993-04-06 Insertiesysteem voor weefmachines.
BE9300339 1993-04-06

Publications (2)

Publication Number Publication Date
EP0619391A1 true EP0619391A1 (fr) 1994-10-12
EP0619391B1 EP0619391B1 (fr) 1997-12-29

Family

ID=3886953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103176A Expired - Lifetime EP0619391B1 (fr) 1993-04-06 1994-03-03 Système d'insertion pour un métier à tisser à jet d'air

Country Status (5)

Country Link
US (1) US5417250A (fr)
EP (1) EP0619391B1 (fr)
JP (1) JP3551980B2 (fr)
BE (1) BE1006981A3 (fr)
DE (1) DE59404851D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29806552U1 (de) * 1998-04-09 1998-07-09 Dornier Gmbh Lindauer Schußfadeneintragsvorrichtung für eine Luftdüsenwebmaschine
CN102094282A (zh) * 2009-12-15 2011-06-15 津田驹工业株式会社 喷气式织机的引纬装置
EP2808431A1 (fr) * 2013-05-29 2014-12-03 Kabushiki Kaisha Toyota Jidoshokki Appareil d'application de tension de fil de trame dans un métier à tisser à jet d'air
EP3640381A1 (fr) * 2018-10-15 2020-04-22 Kabushiki Kaisha Toyota Jidoshokki Métier à tisser à jet d'air multicolore

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540261A (en) * 1995-10-05 1996-07-30 Mcginley; Thomas F. Warp wave weaving method and apparatus with pneumatic weft insertion
BE1012032A3 (nl) * 1998-06-10 2000-04-04 Picanol Nv Luchttoevoerblok voor een weefmachine.
JP2004091936A (ja) * 2002-08-29 2004-03-25 Toray Ind Inc 織機の緯入れ装置
DE102004036996B3 (de) * 2004-07-30 2005-12-01 Lindauer Dornier Gmbh Duesenwebmaschine, insbesondere Luftdüsenwebmaschine, mit einer Klemmeinrichtung im Mischrohr
DE102005004064A1 (de) * 2005-01-21 2006-07-27 Picanol N.V. Vorrichtung zum Eintragen von Schussfäden bei einer Luftdüsenwebmaschine
DE102006025968B3 (de) * 2006-06-02 2007-11-29 Lindauer Dornier Gmbh Verfahren zum Klemmen eines Schussfadens in einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine, Klemmeinrichtung und Düsenwebmaschine
US7748414B2 (en) * 2006-12-12 2010-07-06 Itema (Switzerland) Ltd Method and apparatus for the insertion of weft threads
JP7388322B2 (ja) 2020-09-07 2023-11-29 株式会社豊田自動織機 エアジェット織機の緯入れ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796085A (en) * 1954-05-18 1957-06-18 Mira Zd Y Na Pletene A Stavkov Pump and nozzle system for nozzle operated weaving looms
DE9202328U1 (de) * 1992-02-22 1992-06-04 Pixberg Gmbh, 5600 Wuppertal Prüfvorrichtung für die Düsenwebtechnik

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351369A (en) * 1978-12-12 1982-09-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fluid supply apparatus in shuttleless loom
FR2535744A1 (fr) * 1982-11-09 1984-05-11 Saurer Diederichs Sa Dispositif d'alimentation alternative en air comprime d'un melange de trame, pour machine a tisser sans navette a insertion de trame pneumatique
NL8503439A (nl) * 1985-12-13 1987-07-01 Picanol Nv Apparaat om een inslagdraad aan een hoofdblazer toe te voeren bij weefmachines.
BE1000553A4 (nl) * 1987-05-12 1989-01-31 Picanol Nv Werkwijze voor het bedraden van een inslaginrichting bij weefmachines, en inslaginrichting die deze werkwijze toepast.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796085A (en) * 1954-05-18 1957-06-18 Mira Zd Y Na Pletene A Stavkov Pump and nozzle system for nozzle operated weaving looms
DE9202328U1 (de) * 1992-02-22 1992-06-04 Pixberg Gmbh, 5600 Wuppertal Prüfvorrichtung für die Düsenwebtechnik

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29806552U1 (de) * 1998-04-09 1998-07-09 Dornier Gmbh Lindauer Schußfadeneintragsvorrichtung für eine Luftdüsenwebmaschine
EP0949370A1 (fr) * 1998-04-09 1999-10-13 Lindauer Dornier Gesellschaft M.B.H Dispositif d'insertion de la trame pour métier à tisser à tuyères
CN102094282A (zh) * 2009-12-15 2011-06-15 津田驹工业株式会社 喷气式织机的引纬装置
EP2808431A1 (fr) * 2013-05-29 2014-12-03 Kabushiki Kaisha Toyota Jidoshokki Appareil d'application de tension de fil de trame dans un métier à tisser à jet d'air
EP3640381A1 (fr) * 2018-10-15 2020-04-22 Kabushiki Kaisha Toyota Jidoshokki Métier à tisser à jet d'air multicolore

Also Published As

Publication number Publication date
DE59404851D1 (de) 1998-02-05
JP3551980B2 (ja) 2004-08-11
US5417250A (en) 1995-05-23
BE1006981A3 (nl) 1995-02-07
JPH06306738A (ja) 1994-11-01
EP0619391B1 (fr) 1997-12-29

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