EP0685584A1 - Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase - Google Patents

Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase Download PDF

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Publication number
EP0685584A1
EP0685584A1 EP94810315A EP94810315A EP0685584A1 EP 0685584 A1 EP0685584 A1 EP 0685584A1 EP 94810315 A EP94810315 A EP 94810315A EP 94810315 A EP94810315 A EP 94810315A EP 0685584 A1 EP0685584 A1 EP 0685584A1
Authority
EP
European Patent Office
Prior art keywords
weft thread
weft
speed
shed
weaving
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
EP94810315A
Other languages
German (de)
English (en)
Other versions
EP0685584B1 (fr
Inventor
Robert Bucher
Ernst Eberhard
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.)
Itema Switzerland Ltd
Maschinenfabrik Rueti AG
Original Assignee
Sultex AG
Maschinenfabrik Rueti 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 Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to DE59408476T priority Critical patent/DE59408476D1/de
Priority to EP94810315A priority patent/EP0685584B1/fr
Priority to US08/414,414 priority patent/US5632308A/en
Priority to JP7101356A priority patent/JPH0841754A/ja
Priority to RU95108258/12A priority patent/RU95108258A/ru
Publication of EP0685584A1 publication Critical patent/EP0685584A1/fr
Application granted granted Critical
Publication of EP0685584B1 publication Critical patent/EP0685584B1/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
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/005—Linear-shed multiphase looms

Definitions

  • the invention relates to a method for inserting weft threads into a row shed weaving machine according to the preamble of claim 1.
  • the invention further relates to a device and a row shed weaving machine operated with the method according to the invention.
  • the invention has for its object to provide a method and an apparatus for the insertion of weft threads into the weaving rotor of a row shed weaving machine, which allows a reliable weft thread insertion.
  • this object is achieved with a method according to the features of claim 1.
  • the dependent claims 2 to 14 relate to further advantageous embodiments of the invention.
  • the object is further achieved with a device according to the features of claim 15.
  • the dependent claim 16 relates to a further advantageous embodiment of the invention.
  • the advantages of the invention can be seen in the fact that the insertion speed of a weft thread into the weaving rotor of the row shed weaving machine is determined by a metering device.
  • the entry speed is therefore very high precisely specifiable and changeable via a control or regulating device.
  • the method according to the invention allows the weft thread insertion to be monitored with sensors and influenced with actuators, so that a reliable weft thread insertion is ensured.
  • the metering device also allows the entered length of the weft thread to be measured continuously, so that the location of the thread tip can be calculated continuously and is therefore known.
  • the weft insertion speed can be varied during a weft insertion, for example in such a way that the speed is increased over a first section of the entry and the speed is reduced in a subsequent section, so that the weft thread is additionally stretched by the delay in the following section.
  • FIG. 4 shows a weaving rotor 100 of a row shed weaving machine in a perspective view.
  • the weaving rotor 100 rotating about the axis of rotation 100d in the direction of movement 101 has shedding organs 107 which act on warp threads in such a way that an open shed 103a, 103b, 103c, 103d is formed, into which a weft thread 71, 72, 73, 74 can be inserted.
  • the weft is introduced using a fluid, preferably air.
  • weft threads 71, 72, 73, 74 can be inserted simultaneously, a weft distributing device 9a feeding a supplied weft thread 71, 72, 73, 74 to an open shed 103a, 103b, 103c, 103d, and after a complete weft insertion and a weft insertion side cutting of the weft, the newly created weft tip is fed to a subsequent, open shed.
  • a weft thread 72 is introduced into the weaving rotor 100 by means of a fluid that is supplied via a fluid supply line 121.
  • the weft distributing device 9 has a fluid nozzle 92 for each weft 72 in order to guide the weft into an open shed and to insert it into the open shed.
  • the shed forming organs 107 form a weft insertion channel of the relay nozzles 130a, 130b, 130c, 130d in the open shed in order to carry the weft 72 through the shed with the aid of a fluid.
  • a control and regulating device 200 influences the pressure of the fluid by means of controllable throttle valves 122b, 132a-132d and by means of controllable valves 120b, 131a-131d the switch-on time and the switch-off time of the fluid at the corresponding fluid nozzles 92, 130a-130d.
  • the relay nozzles are arranged in four independent groups 130a-103d across the width of the weaving rotor 100.
  • Fig. 1 shows schematically the weft insertion in a row shed weaving machine.
  • Four weft threads 7; 71, 72, 73, 74 are conveyed into the weft distributing device 9 by four supply units 2a-2d and four metering devices 1a-1d.
  • the weft distributing device 9 distributes the delivered weft threads 71-74 to the respectively opened shed compartments of the weaving rotor 100, the weft threads being introduced into the rotating weaving rotor 100 through stationary fluid nozzles 91, 92, 93, 94.
  • a sensor 46d monitors the insertion of the weft thread 74 into the weaving rotor 100.
  • the weft threads 71, 72 and 73 were shot into the weaving rotor 100 one after the other in ascending order and are therefore correspondingly further against the weft arrival end 100b des Webrotors 100 entered there.
  • the weaving rotor 100 moves in the direction of movement 101, so that the weft threads 7 located in the weaving rotor are simultaneously moved towards the weft thread scissors 51 or the thread brake 37.
  • the weft thread 71 is completely inserted in the weaving rotor 100, which is recognized by the sensor 46c.
  • the weft thread 71 is cut on the weft insertion side by the thread scissors 51 and braked and held by the thread brake 37.
  • the newly created thread tip is deflected by the weft distributing device 9 to a further nozzle, not shown, and introduced into a newly formed shed following the shed of the weft 74.
  • Sensors 46e can be arranged along the shed to monitor the weft thread 7 flying through the shed.
  • a drive device 104 which serves to drive the weaving rotor, is connected via an axis 106 to the weaving rotor 100 and to an angle sensor 105.
  • a fluid line 121 feeds the fluid nozzles 91-94, wherein the fluid flow can be interrupted by valves 120a-120d. All sensors 46c, 46d, 105 and sensors of the metering devices 1a-1d are connected to a control and regulating device 200. Likewise, all actuators such as the valves 120a-120d, the drive device 104 or the metering devices 1a-1d are connected to the control and regulating device 200 via signal lines.
  • the weft 71-74 is continuously drawn off from the weft store 2a-2d by the metering device 1a-1d and conveyed to the weft distribution device 9, which guides the weft 71-74 into an open shed 103a-103d.
  • the conveying speed of the weft thread 71-74 upon entry into the shed 103a-103d is determined by the metering device 1a-1d.
  • the pressure of the fluid correspondingly large when the weft is inserted, so that the fluid nozzles 91 and the relay nozzles in the shed 103a exert a force acting in the weft insertion direction on the weft 71 such that the weft exerts a slight tensile force on the metering device 1a. 1d exercises.
  • the entry speed is thus determined by the metering device 1a-1d.
  • the required amount of fluid, or the required pressure of the fluid depends on the properties of the weft thread 71, such as its roughness.
  • a weft thread 71 is cut through the thread scissors 51 on the weft insertion side after a complete weft thread insertion, a new thread tip is created which is diverted by the weft thread distribution device 9 or the fluid nozzles 91-94 into a new, open shed 103a-103d.
  • the entry speed of the weft thread 71 in the shed 103a-103d is in turn determined by the metering device 1a.
  • the weft thread entry is controlled or regulated by the control and regulating device 200, which uses actuators to determine, for example, the speed of the weaving rotor 100, the entry speed of the weft thread, the time at which the fluid nozzles are switched on and off, and the pressure of the fluid.
  • the open-loop or closed-loop control device requires a reference value or master value, with respect to which the behavior of the other components is coordinated.
  • the angle of rotation or the angular velocity of the weaving rotor 100 is suitable as a guide value.
  • This conductance can be specified by the control and regulating device 200 itself, for example as a clock signal, with respect to which all components are synchronized. Such a conductance is also referred to as an artificial guide wave.
  • the control device 200 controls the angle of rotation or the angular velocity of the weaving rotor 100 via the drive device 104 and the angle sensor 105 such that its angle of rotation coincides with the guide value.
  • a master value can also be measured directly on the row shed weaving machine, for example as a signal from the angle sensor 105. If a process variable measured in this way is used as the master value, fluctuations in the master value have an effect on the other controlled components by the control device 200.
  • the row shed weaving machine can be operated by the control and regulating device 200 with different methods.
  • a speed is specified for the weaving rotor 100, and for this purpose the metering device 1a-1d synchronizes a conveying speed and the fluid nozzles 91-94 a time sequence for actuating the valves 120a-120d.
  • the relay nozzles 130a-130d constantly or intermittently pressurized with a fluid.
  • the fluid nozzles are controlled in such a way that the insertion speed of the weft thread is determined by the metering device 1a-1d.
  • the speed of the weaving rotor and the speed of the metering device are rigidly synchronized with one another, the weaving rotor constantly rotating during weaving and the metering device constantly conveying weft.
  • weft thread If a weft thread is completely inserted, it is cut on the weft insertion side and the newly created weft thread tip is fed to a new shed by the weft thread distribution device. Due to the rigid synchronization of the weaving rotor and metering device, a complete weft thread entry is guaranteed without monitoring a process size. However, it can prove to be advantageous to monitor the weft thread entry with sensors 46c, 46d, 46e in order to determine entry errors.
  • the predetermined speed can be determined by properties of the yarn, or other target values, such as that to minimize the fluid consumption of the nozzles.
  • the control device 200 detects process variables during the weaving process that are used to control the weaving process.
  • the entry speed can thus be detected with a sensor arranged on the metering device 1a-1d, or with further sensors 4c, 4d, 4e, which are arranged along the weft entry.
  • the rotation angle or the angular velocity of the weaving rotor 100 or the entered length of the weft thread 71-74 are suitable as further process variables.
  • the entered length of the weft 71-74 can be detected or calculated via a sensor arranged on the metering device 1a-1d, so that the location of the weft tip during the entry can be determined and as an additional control variable can be used.
  • the fluid nozzles are in turn controlled in such a way that the insertion speed of the weft thread is determined by the metering device 1a-1d.
  • the insertion speed of the weft thread is varied by the control device 200 in that the metering device 1a-1d is controlled with a changing conveying speed, whereas the speed of the weaving rotor 100 is kept constant.
  • a possible course of the entry speed V of the weft thread tip as a function of the entry path S is shown in FIG. 2.
  • the weft thread is accelerated, while the entry speed of the weft thread is reduced in a second phase II until the weft thread is brought to a standstill by the action of the thread brake 37 in a third phase III, so that the weft thread reaches up to Width B of the weaving rotor 100 is entered.
  • This entry method is that the braking of the weft thread in phase II causes it to stretch, so that the weft thread is inserted largely stretched out.
  • modulating the entry speed as a function of the entry width it is also possible, for example, to optimize the air consumption or optimize the weft insertion time in order to operate the weaving rotor at the highest possible speed.
  • FIG. 3 shows a metering device 1 which draws a weft thread 7 from a supply unit 2 and delivers it to the weaving cycle of a weft thread distribution device 9 or a row shed weaving machine.
  • the suction nozzle 25 conveys the weft thread 7 through a thread brake 3 and via a weft thread store 4a to a weft thread conveying device 4
  • the storage device 4a is designed as a tube 4b, a fluid nozzle 4c arranged above the upper tube opening allowing the weft thread 7 to dip into the storage device 4b, and a sensor 46 detecting the stored thread length.
  • a weft nozzle 41 and a catch nozzle 42 opposite in the weft insertion direction 7e define a weft axis along which a weft thread 7 is inserted into the weft thread conveying device 4.
  • the weft thread conveying device 4 has a conveying roller 40 between the insertion nozzle 41 and the catching nozzle 42, which has a support surface in the circumferential direction on which the weft thread 7 comes to rest.
  • the contact surface is wrapped several times by the weft thread 7, so that, due to the friction, slippage between the conveyor roller 40 and weft thread 7 is avoided as far as possible, so that the rotational speed of the conveyor roller determines the entry speed of the weft thread 7 and the registered one by detecting the rotation of the conveyor roller 40 Length of the weft thread 7 can be determined.
  • the weft conveyor 4 is followed by a weft distribution device 9 in the weft insertion direction 7e.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP94810315A 1994-05-30 1994-05-30 Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase Expired - Lifetime EP0685584B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59408476T DE59408476D1 (de) 1994-05-30 1994-05-30 Verfahren und Vorrichtung zum Eintrag von Schussfäden in eine Reihenfachwebmaschine
EP94810315A EP0685584B1 (fr) 1994-05-30 1994-05-30 Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase
US08/414,414 US5632308A (en) 1994-05-30 1995-03-31 Method for the metered insertion of weft yarn into a series shed weaving machine
JP7101356A JPH0841754A (ja) 1994-05-30 1995-04-25 経糸開口直列配置型織機の緯入れ方法及び緯入れ装置
RU95108258/12A RU95108258A (ru) 1994-05-30 1995-05-25 Способ введения уточных нитей в ткацкий станок с волнообразным зевом вдоль основы и устройство для его осуществления

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94810315A EP0685584B1 (fr) 1994-05-30 1994-05-30 Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase

Publications (2)

Publication Number Publication Date
EP0685584A1 true EP0685584A1 (fr) 1995-12-06
EP0685584B1 EP0685584B1 (fr) 1999-07-07

Family

ID=8218262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810315A Expired - Lifetime EP0685584B1 (fr) 1994-05-30 1994-05-30 Méthode et dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase

Country Status (5)

Country Link
US (1) US5632308A (fr)
EP (1) EP0685584B1 (fr)
JP (1) JPH0841754A (fr)
DE (1) DE59408476D1 (fr)
RU (1) RU95108258A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980923A1 (fr) * 1998-08-19 2000-02-23 Sulzer Rüti Ag Dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase et métier à tisser multiphase avec un tel dispositif
EP0980925A1 (fr) * 1998-08-19 2000-02-23 Sulzer Rüti Ag Dispositif pour l'insertion de trame dans un métier à tisser multiphasé à foule linéaire et métier à tisser multiphasé à foule linéaire avec ce dispositif
EP0980924A1 (fr) * 1998-08-19 2000-02-23 Sulzer Textil Ag Dispositif pour l'insertion de trame dans un métier à tisser multiphasé à foule linéaire et métier à tisser multiphasé à foule linéaire avec ce dispositif
US6223778B1 (en) 1998-08-19 2001-05-01 Sulzer Rueti Ag Apparatus for the insertion of weft threads for a series shed weaving machine
EP1048767A3 (fr) * 1999-04-21 2001-05-30 Sulzer Textil AG Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire
EP1048766A3 (fr) * 1999-04-21 2001-06-06 Sulzer Textil Ag Procédé pour insérer le fil de trame dans un métier multiphasé à foule linéaire
CN115491807A (zh) * 2022-10-11 2022-12-20 江苏博雅达纺织有限公司 一种用于生产家纺面料的分条整经免浆工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59707877D1 (de) * 1997-11-28 2002-09-05 Sulzer Textil Ag Rueti Verfahren und Vorrichtung zum Eintragen eines Schussfadens in einer Reihenfachwebmaschine
US6669130B2 (en) * 2001-10-26 2003-12-30 Kimberly-Clark Worldwide, Inc. Feeding string
US6830172B2 (en) 2001-10-26 2004-12-14 Kimberly-Clark Worldwide, Inc. Apparatus and method for feeding string
US20150197879A1 (en) * 2014-01-10 2015-07-16 Wooky Entertainment Inc. Device for weaving

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445489A1 (fr) * 1990-03-08 1991-09-11 Sulzer RàœTi Ag Dispositif de mesure du fil de trame d'un métier à tisser
EP0498773A1 (fr) * 1991-02-05 1992-08-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dispositif de contrôle de l'insertion de la trame dans un métier à jet
DE4226693A1 (de) * 1991-08-12 1993-02-18 Nissan Motor Stroemungsduesen-webautomat und verfahren zu dessen steuerung
EP0554222A1 (fr) * 1992-01-28 1993-08-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Procédé pour contrôler l'insertion de trame dans un métier à jet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143860B1 (fr) * 1983-12-01 1986-09-03 Maschinenfabrik Sulzer-Rüti Ag Dispositif de préparation du fil de trame pour un métier à tisser multiphasé à foule linéaire
JP2848684B2 (ja) * 1989-11-16 1999-01-20 ゲブリユーダー ズルツアー アクチエンゲゼルシヤフト よこ糸分配機構
DE59207389D1 (de) * 1992-08-11 1996-11-21 Rueti Ag Maschf Vorrichtung zum Halten von Schussfäden für Reihenfachwebmaschinen
DE59206061D1 (de) * 1992-08-28 1996-05-23 Rueti Ag Maschf Webrotor für eine Reihenfachwebmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445489A1 (fr) * 1990-03-08 1991-09-11 Sulzer RàœTi Ag Dispositif de mesure du fil de trame d'un métier à tisser
EP0498773A1 (fr) * 1991-02-05 1992-08-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dispositif de contrôle de l'insertion de la trame dans un métier à jet
DE4226693A1 (de) * 1991-08-12 1993-02-18 Nissan Motor Stroemungsduesen-webautomat und verfahren zu dessen steuerung
EP0554222A1 (fr) * 1992-01-28 1993-08-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Procédé pour contrôler l'insertion de trame dans un métier à jet

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0980923A1 (fr) * 1998-08-19 2000-02-23 Sulzer Rüti Ag Dispositif pour l'insertion des fils de trame dans un métier à tisser multiphase et métier à tisser multiphase avec un tel dispositif
EP0980925A1 (fr) * 1998-08-19 2000-02-23 Sulzer Rüti Ag Dispositif pour l'insertion de trame dans un métier à tisser multiphasé à foule linéaire et métier à tisser multiphasé à foule linéaire avec ce dispositif
EP0980924A1 (fr) * 1998-08-19 2000-02-23 Sulzer Textil Ag Dispositif pour l'insertion de trame dans un métier à tisser multiphasé à foule linéaire et métier à tisser multiphasé à foule linéaire avec ce dispositif
US6179011B1 (en) 1998-08-19 2001-01-30 Sulzer Rueti Ag Apparatus for the insertion of weft threads for a series shed weaving machine and a series shed weaving machine with an apparatus
US6223778B1 (en) 1998-08-19 2001-05-01 Sulzer Rueti Ag Apparatus for the insertion of weft threads for a series shed weaving machine
EP1048767A3 (fr) * 1999-04-21 2001-05-30 Sulzer Textil AG Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire
EP1048766A3 (fr) * 1999-04-21 2001-06-06 Sulzer Textil Ag Procédé pour insérer le fil de trame dans un métier multiphasé à foule linéaire
CN115491807A (zh) * 2022-10-11 2022-12-20 江苏博雅达纺织有限公司 一种用于生产家纺面料的分条整经免浆工艺
CN115491807B (zh) * 2022-10-11 2024-01-05 江苏博雅达纺织有限公司 一种用于生产家纺面料的分条整经免浆工艺

Also Published As

Publication number Publication date
DE59408476D1 (de) 1999-08-12
JPH0841754A (ja) 1996-02-13
RU95108258A (ru) 1996-12-27
US5632308A (en) 1997-05-27
EP0685584B1 (fr) 1999-07-07

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