EP0284766A1 - Procédé pour couper un fil de trame inséré et dispositif de coupage - Google Patents

Procédé pour couper un fil de trame inséré et dispositif de coupage Download PDF

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Publication number
EP0284766A1
EP0284766A1 EP88102500A EP88102500A EP0284766A1 EP 0284766 A1 EP0284766 A1 EP 0284766A1 EP 88102500 A EP88102500 A EP 88102500A EP 88102500 A EP88102500 A EP 88102500A EP 0284766 A1 EP0284766 A1 EP 0284766A1
Authority
EP
European Patent Office
Prior art keywords
weft
separating device
thread
weft thread
cutting
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
EP88102500A
Other languages
German (de)
English (en)
Other versions
EP0284766B1 (fr
Inventor
Dirk Lewyllie
José Vangheluwe
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
Application filed by Picanol NV filed Critical Picanol NV
Publication of EP0284766A1 publication Critical patent/EP0284766A1/fr
Application granted granted Critical
Publication of EP0284766B1 publication Critical patent/EP0284766B1/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
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft threads
    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/125—Weft holding devices
    • 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
    • D03D47/308—Stretching or holding the weft

Definitions

  • the invention relates to a method for separating a inserted weft thread from a ready-made weft thread on a weaving machine by means of a separating device that becomes active during a weaving cycle, and a separating device.
  • the inserted weft thread is separated from the rest of the weft thread after a corresponding weft thread length has been introduced into the shed, i.e. of the weft thread ready for the next weft to be entered.
  • a separating device or the like via a cam mechanism. mechanical drive derived from the main drive of the loom. This separating device therefore works synchronously with the machine rhythm.
  • the mechanical coupling of the separating device to the main drive of the weaving machine means that the point in time at which the inserted weft thread is separated from the weft thread held ready is fixed in relation to the weaving cycle. It is known that the optimal time for severing depends on the type of weft used. If you want to work with different types of weft on the same weaving machine, you have to find and find a compromise between the optimal times for separating the individual types of weft. In this way, it is not possible to adjust the time of severing that is optimal for a specific weft thread.
  • the registered weft thread is not separated from the ready weft thread, in particular in certain methods for eliminating a weft thread defect (NL patent application 86 02 191).
  • the incorrectly inserted weft thread should not be separated from the weft thread so that it is still connected to the insertion device.
  • the introduction of the next weft thread, which is then still connected to the previous faulty weft thread means that the incorrectly inserted weft thread is taken along and removed.
  • the invention has for its object to design a method of the type mentioned so that on the one hand an optimization of the separation time for a weft type is possible, while on the other hand a separation can be prevented in a simple manner.
  • the separating device is actuated by means of its own, independent drive, which is controlled by means of a programmable control.
  • the separating device By using its own independent drive for the separating device, which is not mechanically coupled to the main drive of the weaving machine, the separating device can practically arbitrarily operated at any time or not operated. With the programmable control it is easily possible to determine the time of severing depending on the weaving parameters and data of the weft. It is just as easy to prevent disconnection.
  • a separating device for a weaving machine for separating an inserted weft thread from a ready-made weft thread during a weaving cycle in which the separating device is provided with its own, independent drive. With this separating device, the point in time of the detachment can be matched to the rest of the weaving cycle.
  • Fig. 1 the frame (1), the sheet (2), a main nozzle (3), a separator (4), a weft clamp (5) and a weft monitor (6) of an air-weaving machine are shown schematically.
  • the warp threads (7), the compartment (8), the weft feeder (9) and the finished goods (10) are visible. After each (successful) insertion of a weft, it is separated from the next weft held in the main blowing nozzle (3) by means of the separating device (4).
  • the scissor-like separating device (4) is actuated by a controllable drive (11) which in turn is controlled by a computer (12) which takes into account the weaving parameters (13) and the other weft data (14).
  • the drive (11) is preferably an electric drive, for example a stepper motor.
  • the weaving parameters (13) contain data relating to the weaving cycle, from which it can be determined at which point in time the separating device (4) is activated, as well as data relating to the weaving pattern and the possibly different types of thread, so that the computer (12) within a Weaving cycle can determine the optimal time for severing the weft.
  • the weaving parameters (13) can also contain data relating to the operating state of the weaving machine, either the state during normal operation or the state when the thread breaks, when starting, when the run is delayed, etc.
  • the weaving parameters (13) are set manually via programs or sensors entered the weaving machine.
  • the weft data (14) mainly consist of a signal (15) coming from the weft monitor (6) arranged at the end of the weaving thread and possibly one or more signals (16) that come from sensors that monitor the course of the weft Check the compartment.
  • a weft thread (17) is introduced in the usual manner, which is then, as shown in FIG. 1, struck with the sheet (2). He is pressed on the weft side between the jaws of the weft clamp (5), which is in its clamping position, so that the weft (17) is inserted into the closed weft clamp (5). The weft thread (17) also reaches the area of the separating device (4).
  • the computer (12) will activate the drive (11) with the help of the entered weaving parameters (13), whereby the separating device (4) removes the inserted weft thread (17) from the in the weft feeder (9) and the main blowing nozzle (3).
  • the separating device (4) can be prevented from cutting the thread in order to remove the faulty weft thread.
  • the combination separating device (4) and weft thread clamp (5) is shown schematically in Fig. 3. Both the separating device (4) and the weft thread clamp (5) have a fixed and a movable part, namely the parts (19 to 22).
  • the movable part (21) of the weft clamp (5) is constantly pressed against the fixed part (22) by elastic pressure elements, such as a compression spring (23).
  • the drive (11) is designed such that it can bring the separating device (4) into three positions: a closed position and two open positions.
  • the first open position is shown in Fig. 3.
  • the weft thread clamp (5) is still closed.
  • the second open position it has taken the movable part of the weft clamp (5) with it, as shown in Fig. 4, i.e. that the weft clamp (5) has been opened at the same time. In this way, a faulty weft thread (17) can be removed without hindrance by the weft thread clamp (5).
  • the weft clamp (5) can be pressed into the open position with the aid of the separating device (4) each time a weft thread (17) is brought into the compartment and before it is struck by the sheet (2) in the weft clamp (5) .
  • the weft thread (17) is simply brought between the parts (21 and 22).
  • the separating device (4) can then be brought into the separating position and thus the weft thread (17) is clamped between the jaws of the weft thread clamp (5), in order to then be separated from that held ready in the weft thread feeder (9) and the main blowing nozzle.
  • FIGS. 5 and 7 show in two views a practical embodiment of a separating device (4) which corresponds to the principle shown in FIGS. 3 and 4.
  • the movable part (19) (cutting edge) of the separating device (4) is a lever arm which is arranged on the shaft (24) of a stepping motor (25) in a rotationally fixed manner.
  • the stepper motor (25) is rotated due to a predetermined number of pulses for cutting by a certain angle of rotation range and then electrically turned back into the position shown in FIG. 5.
  • the stepper motor can be turned back by a larger angle of rotation than is required for the cutting on the basis of a special signal which is sent to the computer (12).
  • the movable part (21) of the weft thread clamp (5) is connected via a rigid connection (26) to a pivotable part (27) which can be pivoted about an axis (28).
  • the above-mentioned spring (23) engages on the pivotable part (27) and is adjusted with the aid of setting options (29) the spring pressure necessary for the clamping.
  • the axis (28) can be coaxial with the shaft (24).
  • the fixed parts (20 and 22) can also be made in one piece.
  • FIG. 7 shows the position of the separating device (4) according to FIGS. 5 and 6, which corresponds to the position in the schematic representation according to FIG. 4.
  • the upper edge (30) of the movable part (19) presses the connection (26) upwards, as a result of which the weft thread clamp (5) is opened.
  • the upper edge (30) carries an adjusting element (31) which is adjustable in height, i.e. perpendicular to the cutting edge, so that the opening of the weft thread clamp (5) can be regulated as a function of the opening angle of the separating device (4).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP88102500A 1987-03-09 1988-02-20 Procédé pour couper un fil de trame inséré et dispositif de coupage Expired - Lifetime EP0284766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8700224 1987-03-09
BE8700224A BE1000369A4 (nl) 1987-03-09 1987-03-09 Werkwijze voor het bevelen van een snijinrichting voor inslagdraden bij weefmachines en snijinrichting hiertoe aangewend.

Publications (2)

Publication Number Publication Date
EP0284766A1 true EP0284766A1 (fr) 1988-10-05
EP0284766B1 EP0284766B1 (fr) 1991-05-15

Family

ID=3882553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102500A Expired - Lifetime EP0284766B1 (fr) 1987-03-09 1988-02-20 Procédé pour couper un fil de trame inséré et dispositif de coupage

Country Status (6)

Country Link
US (1) US4834145A (fr)
EP (1) EP0284766B1 (fr)
JP (1) JP2793592B2 (fr)
BE (1) BE1000369A4 (fr)
DE (1) DE3862789D1 (fr)
ES (1) ES2022486B3 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322090A (en) * 1992-03-16 1994-06-21 Lindauer Dornier Gesellschaft Mbh Method and apparatus for readying a defined weft thread reserve when there is a loom stoppage
EP0679744A1 (fr) * 1994-04-29 1995-11-02 PANTER S.r.l. Dispositif coupe-trame pour métiers à tisser
EP0683256A1 (fr) * 1994-05-20 1995-11-22 NUOVO PIGNONE S.p.A. Dispositif coupe-fil pour métier à tisser à jet d'air
EP0751247A2 (fr) * 1995-06-28 1997-01-02 Lindauer Dornier Gesellschaft M.B.H Dispositif combiné de pinçage et de coupe de fil de trame pour métiers à jet d'air
WO1997013901A1 (fr) * 1995-10-10 1997-04-17 Textilma Ag Metier mecanique a insertion pneumatique du fil de trame
EP0839938A1 (fr) * 1996-10-07 1998-05-06 Sulzer Rüti Ag Procédé pour couper un fil de trame à insérer dans un métier à griffes
EP0867543A2 (fr) * 1997-03-27 1998-09-30 Lindauer Dornier Gesellschaft M.B.H Procédé et dispositif pour la commande et le contrÔle du fonctionnement de ciseaux à fil actionnés par moteur électrique sur métiers à tisser
WO1998045517A1 (fr) * 1997-04-09 1998-10-15 Textilma Ag Metier a tisser avec insertion pneumatique du fil de trame
WO1999029946A1 (fr) * 1997-12-11 1999-06-17 Picanol N.V. Procede et dispositif pour controler l'insertion de fils de trame dans un metier mecanique
EP0953664A1 (fr) * 1998-04-28 1999-11-03 Sulzer Rüti Ag Dispositif pour couper un fil de trame à insérer et système pour insérer un fil de trame avec un tel dispositif
CN1061714C (zh) * 1995-10-10 2001-02-07 特克斯蒂尔马有限公司 气动引纬的织机
BE1012999A3 (fr) * 1997-08-05 2001-07-03 Tsudakoma Ind Co Ltd Dispositifs de retenue de trame pour metiers a tisser du type a jets de fluide.
EP1136606A1 (fr) * 2000-03-20 2001-09-26 Lindauer Dornier Gesellschaft M.B.H Dispositif coupe-fil pour métiers à tisser
EP1367158A1 (fr) * 2002-05-31 2003-12-03 Lindauer Dornier Gesellschaft M.B.H Procédé et dispositif pour couper le fil de trame après l'insertion de la duite
EP1447465A2 (fr) * 2003-02-14 2004-08-18 Tsudakoma Kogyo Kabushiki Kaisha Procédé et dispositif d'entraínement d'un dispositif coupe-fil de déchets de faux lisières pour un métier à tisser sans navette
WO2006027240A1 (fr) * 2004-09-08 2006-03-16 Picanol N.V. Procede pour serrer des fils de trame, dispositif de serrage et metier a tisser pourvu d'au moins un dispositif de serrage de fils de trame
WO2007105240A1 (fr) * 2006-03-15 2007-09-20 Renzo Lisi dispositif de découpe de filS et de tissus légers dans DES MACHINES textileS
EP2098625A1 (fr) 2008-03-06 2009-09-09 Picanol N.V. Procédé et métier à tisser doté d'un dispositif pour éviter un entrelacement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003342857A (ja) * 2002-05-28 2003-12-03 Tsudakoma Corp 織機における緯糸処理方法
ITMI20031464A1 (it) * 2003-07-17 2005-01-18 Promatech Spa Dispositivo a comando elettrico per il taglio programmabile
WO2007057217A1 (fr) * 2005-11-21 2007-05-24 Picanol N.V. Procede permettant d’introduire un fil de trame dans une machine a tisser a jet d’air et machine a tisser a jet d’air
US8800606B2 (en) * 2012-01-24 2014-08-12 Nike, Inc. Weaving finishing device
KR101894620B1 (ko) 2012-01-24 2018-09-03 나이키 이노베이트 씨.브이. 간헐적 위빙 스플라이서
CN104169480B (zh) 2012-01-24 2017-09-19 耐克创新有限合伙公司 三维编织系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL271419A (fr) * 1960-11-17 1900-01-01
DE1560637A1 (de) * 1964-08-28 1970-10-01 Zellweger Uster Ag Vorrichtung zum Festhalten von Garnen in Garnreinigern auf Spulmaschinen u.dgl.
US4134434A (en) * 1976-03-11 1979-01-16 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Weft cutting device in looms with mechanisms for multi weft weaving
US4531555A (en) * 1983-01-19 1985-07-30 Toray Industries, Inc. Yarn cutter for shuttleless loom
EP0207470A2 (fr) * 1985-06-29 1987-01-07 Nissan Motor Co., Ltd. Méthode et système pour enlever un fil de trame mal inséré

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806487A (en) * 1954-10-23 1957-09-17 Ver Scidenwebereien A G Fa Weft thread cutter for looms
BE791648A (fr) * 1971-11-26 1973-03-16 Lebocey Industrie Dispositif pour le pincement et le sectionnement d'un fil de trame pourles metiers a tisser sans navette
DE2656188C3 (de) * 1976-12-11 1980-05-22 Hein, Lehmann Ag, 4000 Duesseldorf Drahtwebmaschine
JPS57196181U (fr) * 1981-06-08 1982-12-13
EP0098856B1 (fr) * 1982-01-16 1986-05-28 Sulzer Brothers Limited Dispositif de retenue de fil
JPS609945A (ja) * 1983-06-29 1985-01-19 日産テクシス株式会社 流体噴射式織機の緯入れ装置
FR2548693B1 (fr) * 1983-07-07 1985-10-18 Saurer Diederichs Sa Dispositif d'entrainement en rotation pour predelivreur-mesureur de trame, sur une machine a tisser sans navette
JPH0680222B2 (ja) * 1985-06-29 1994-10-12 日産テクシス株式会社 無杼織機における緯糸切断装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL271419A (fr) * 1960-11-17 1900-01-01
DE1560637A1 (de) * 1964-08-28 1970-10-01 Zellweger Uster Ag Vorrichtung zum Festhalten von Garnen in Garnreinigern auf Spulmaschinen u.dgl.
US4134434A (en) * 1976-03-11 1979-01-16 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Weft cutting device in looms with mechanisms for multi weft weaving
US4531555A (en) * 1983-01-19 1985-07-30 Toray Industries, Inc. Yarn cutter for shuttleless loom
EP0207470A2 (fr) * 1985-06-29 1987-01-07 Nissan Motor Co., Ltd. Méthode et système pour enlever un fil de trame mal inséré

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322090A (en) * 1992-03-16 1994-06-21 Lindauer Dornier Gesellschaft Mbh Method and apparatus for readying a defined weft thread reserve when there is a loom stoppage
EP0679744A1 (fr) * 1994-04-29 1995-11-02 PANTER S.r.l. Dispositif coupe-trame pour métiers à tisser
EP0683256A1 (fr) * 1994-05-20 1995-11-22 NUOVO PIGNONE S.p.A. Dispositif coupe-fil pour métier à tisser à jet d'air
US5575314A (en) * 1994-05-20 1996-11-19 Nuovo Pignone S.P.A. Weft cutter for air loom which is controllable as a function of weaving conditions
EP0751247A2 (fr) * 1995-06-28 1997-01-02 Lindauer Dornier Gesellschaft M.B.H Dispositif combiné de pinçage et de coupe de fil de trame pour métiers à jet d'air
EP0751247A3 (fr) * 1995-06-28 1998-04-01 Lindauer Dornier Gesellschaft M.B.H Dispositif combiné de pinçage et de coupe de fil de trame pour métiers à jet d'air
WO1997013901A1 (fr) * 1995-10-10 1997-04-17 Textilma Ag Metier mecanique a insertion pneumatique du fil de trame
CN1061714C (zh) * 1995-10-10 2001-02-07 特克斯蒂尔马有限公司 气动引纬的织机
US6014992A (en) * 1995-10-10 2000-01-18 Textilma Ag Mechanical loom with pneumatic weft thread insertion with synchronized clamp cutter and reed
EP0839938A1 (fr) * 1996-10-07 1998-05-06 Sulzer Rüti Ag Procédé pour couper un fil de trame à insérer dans un métier à griffes
EP0867543A3 (fr) * 1997-03-27 1999-12-15 Lindauer Dornier Gesellschaft M.B.H Procédé et dispositif pour la commande et le contrÔle du fonctionnement de ciseaux à fil actionnés par moteur électrique sur métiers à tisser
US6301519B1 (en) 1997-03-27 2001-10-09 Dornier Gesellschaft Mbh Method and apparatus for controlling and monitoring the cutting function of a thread cutter driven by an electric motor in looms
EP0867543A2 (fr) * 1997-03-27 1998-09-30 Lindauer Dornier Gesellschaft M.B.H Procédé et dispositif pour la commande et le contrÔle du fonctionnement de ciseaux à fil actionnés par moteur électrique sur métiers à tisser
WO1998045517A1 (fr) * 1997-04-09 1998-10-15 Textilma Ag Metier a tisser avec insertion pneumatique du fil de trame
US6223779B1 (en) 1997-04-09 2001-05-01 Textilma Ag Auxiliary selvage forming and weft thread cutting device
BE1012999A3 (fr) * 1997-08-05 2001-07-03 Tsudakoma Ind Co Ltd Dispositifs de retenue de trame pour metiers a tisser du type a jets de fluide.
WO1999029946A1 (fr) * 1997-12-11 1999-06-17 Picanol N.V. Procede et dispositif pour controler l'insertion de fils de trame dans un metier mecanique
EP0953664A1 (fr) * 1998-04-28 1999-11-03 Sulzer Rüti Ag Dispositif pour couper un fil de trame à insérer et système pour insérer un fil de trame avec un tel dispositif
US6450210B2 (en) 2000-03-20 2002-09-17 Lindauer Dornier Gesellschaft Mbh Linear motor yarn-cutting device for mechanical looms
EP1136606A1 (fr) * 2000-03-20 2001-09-26 Lindauer Dornier Gesellschaft M.B.H Dispositif coupe-fil pour métiers à tisser
EP1367158A1 (fr) * 2002-05-31 2003-12-03 Lindauer Dornier Gesellschaft M.B.H Procédé et dispositif pour couper le fil de trame après l'insertion de la duite
EP1447465A2 (fr) * 2003-02-14 2004-08-18 Tsudakoma Kogyo Kabushiki Kaisha Procédé et dispositif d'entraínement d'un dispositif coupe-fil de déchets de faux lisières pour un métier à tisser sans navette
EP1447465A3 (fr) * 2003-02-14 2005-01-19 Tsudakoma Kogyo Kabushiki Kaisha Procédé et dispositif d'entraínement d'un dispositif coupe-fil de déchets de faux lisières pour un métier à tisser sans navette
WO2006027240A1 (fr) * 2004-09-08 2006-03-16 Picanol N.V. Procede pour serrer des fils de trame, dispositif de serrage et metier a tisser pourvu d'au moins un dispositif de serrage de fils de trame
BE1016183A3 (nl) * 2004-09-08 2006-04-04 Picanol Nv Werkwijze en inrichting voor het klemmen van een inslagdraad bij een weefmachine.
WO2007105240A1 (fr) * 2006-03-15 2007-09-20 Renzo Lisi dispositif de découpe de filS et de tissus légers dans DES MACHINES textileS
EP2098625A1 (fr) 2008-03-06 2009-09-09 Picanol N.V. Procédé et métier à tisser doté d'un dispositif pour éviter un entrelacement

Also Published As

Publication number Publication date
JPS63235551A (ja) 1988-09-30
US4834145A (en) 1989-05-30
JP2793592B2 (ja) 1998-09-03
ES2022486B3 (es) 1991-12-01
EP0284766B1 (fr) 1991-05-15
BE1000369A4 (nl) 1988-11-08
DE3862789D1 (de) 1991-06-20

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