EP1550751B1 - Procédé de contrôle de la tension d'alimentation d'au moins un fil de trame, dispositif d'alimentation en fil de trame et métier à tisser équipé d'un tel dispositif - Google Patents
Procédé de contrôle de la tension d'alimentation d'au moins un fil de trame, dispositif d'alimentation en fil de trame et métier à tisser équipé d'un tel dispositif Download PDFInfo
- Publication number
- EP1550751B1 EP1550751B1 EP04356206A EP04356206A EP1550751B1 EP 1550751 B1 EP1550751 B1 EP 1550751B1 EP 04356206 A EP04356206 A EP 04356206A EP 04356206 A EP04356206 A EP 04356206A EP 1550751 B1 EP1550751 B1 EP 1550751B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- weft yarn
- weft
- drum
- controlling
- 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.)
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Classifications
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- 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
- D03D47/02—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein loops of continuous weft thread are inserted, i.e. double picks
- D03D47/06—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein loops of continuous weft thread are inserted, i.e. double picks by a pivoted needle having a permanently-threaded eye
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- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/388—Regulating forwarding speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention relates to a method for controlling the supply voltage and to a device for feeding at least one weft thread for a sickle loom.
- the invention also relates to a loom equipped with such a feeding device.
- the speed of rotation of the donor must be synchronized with that of the sickle, which implies the use of complex mechanical devices, particularly of the gearbox and / or spring type. compensation.
- the known devices are therefore relatively expensive and their adjustment can be particularly long and tedious.
- EP-A-0 851 833 or EP-A-0 619 261 It is known, for example from EP-A-0 851 833 or EP-A-0 619 261 to control a frame donor brake according to the downstream weft thread tension. It is also known to EP-A-0 467 059 to enslave the position of a lever forming a voltage regulator. These devices are not efficient enough to be associated with a sickle loom.
- a method of controlling the supply voltage of at least one weft yarn and a feeder according to the preamble of claim 1 and 5 respectively are known from the document US-A-4,298,033 .
- FR-A-2 352 906 It is also known to FR-A-2 352 906 to equip a lance loom with an electrically actuated weft-guiding cylinder according to the position of a compensating arm. Such a mechanism is not responsive enough to be associated with a sickle loom.
- the invention intends to remedy more particularly by proposing a new method for controlling the supply voltage of a weft yarn in which it is not necessary to mechanically synchronize the weft donor and the sickle, while the weft yarn is delivered with a tension adapted to its use.
- the invention relates to a method for controlling the supply voltage of at least one weft yarn in a loom comprising at least one sickle from a yarn supply, in which method less wire is subjected to the action of a drum frame donor and a device for compensation of its accelerations / decelerations, this device comprising a movable member defining the trajectory of the weft yarn.
- This method is characterized in that it comprises a step of controlling the operation of an electric drive actuator of at least one drum of the frame donor according to a signal representative of the operation of a second electric actuator which itself drives the aforementioned movable member.
- the weft donor can, by the angular position of its drum, not only provide the right amount of yarn required for weaving but also smooth some of the violent accelerations / decelerations of the weft, which allows limit the necessary compensation accordingly.
- the compensation device or "compensator" of the invention not only smoothes a part of the violent acceleration / deceleration of the frame, but also to fix, to a certain extent, the tension of the weft thread independently of its angular position. It also makes it possible to adjust the speed of the donor at each instant according to the frame requirement, by authorizing variable unwinding speeds.
- the invention also relates to a weft yarn feeding device of a loom comprising at least one sickle which makes it possible to implement a method as previously described and, more specifically, a device comprising a supply of yarns of frame, at least one weft drive drum and at least one device for compensation of its accelerations / decelerations of this thread which comprises a movable member defining the trajectory of the weft yarn.
- This device is characterized in that the drum is rotated by a first electric actuator, in that the movable member is driven by a second electric actuator and in that means are provided for measuring the position of the aforementioned movable member, while means are also provided for controlling the first electric actuator according to the result of the measurement made by the measuring means.
- the position of the drive drum which in practice belongs to the weft donor, can be controlled in a way that allows it to constantly adapt to the movements of the back and forth of the sickle and compensate for some of the resulting accelerations and violent decelerations of the weft yarn.
- the invention finally relates to a sickle loom equipped with a feed device such as described above.
- a sickle loom equipped with a feed device such as described above.
- the device represented in figures 1 and 2 is intended to allow weft feed of a sickle 1 animated with an oscillating pivoting movement, represented by the arrow F 2 , around a fixed point 2.
- the weft thread 3 is moved relative to the warp threads 4 of the loom M, which makes it possible to weave a ribbon R which moves in the direction of the arrow F 3 .
- the sickle 1 is supplied with weft thread 3 from a spool 10. Starting from the spool 10, the thread 3 passes through a fixed guide eyelet 11 and a thread brake 12 known per se which ensures the tension of the thread 3 by applying on it a constant pressure P 1 , this pressure being adjustable, as represented by the arrow F 4 .
- the wire 3 After passing through the wire brake 12, the wire 3 runs along a return roller 14 and then is wound on a drum 15 belonging to a weft donor 16 whose function is to deliver to the sickle 1 a corresponding quantity of threads 3 to the reciprocating movements of its free end 5.
- the wire 3 can be supported on about 180 ° on the drum 15 or make one or more turns around it.
- the frame donor 16 also comprises a servomotor 17, for example a brushless motor, controlled by a suitable electronic unit 18.
- the wire 3 Downstream of the drum 15, the wire 3 bears on a second roller 19 and then passes through an eyelet 20 mounted at the free end of an arm 21 movable between the two positions shown in phantom at the figure 1 , which allows the eyelet 20 to describe a trajectory globally in a circular arc C 1 .
- the position of the arm 21 is controlled by a second servomotor 22, for example a brushless motor which is powered to generate a substantially constant torque.
- the wire 3 passes through a second fixed eyelet 23 and then passes through an eyelet 6 formed at the free end 5 of the sickle 1.
- the torque C 2 exerted by the motor 22 on the arm 21 directly influences the tension T of the weft thread 3 between the eyelets 23 and 6.
- the motor 22 is powered such that, taking into account the path of the wire 3 between the elements 19, 20 and 23, the voltage T is substantially constant, the value of this constant being adjustable by the setting of the motor power supply 22.
- a sensor 25 is installed near the actuator 22 for detecting the angular position ⁇ of the rotor 22 a.
- the sensor 25 is connected to the unit 18 and its electrical output signal S 1 is supplied to this unit to control the servomotor 17 and thereby the drum 15, so as to deliver a quantity of weft yarn 3 which reduces Permanently the arm 21 in the desired position.
- the drum 15 delivers the amount of weft yarn 3 just needed for the movements of the end 5 of the sickle 1.
- the assembly formed of the elements 20 to 21 constitutes a compensation device or "compensator” 27 which smooths part of the violent accelerations / decelerations to which the weft thread 3 is subjected because of the movements of the sickle 1.
- the donor 16 provides the right amount of yarn required for weaving and participates in the smoothing of the violent accelerations / decelerations of the weft yarn, since the signal S 1 makes it possible to adjust the advance of the weft thread as a function of the position of the arm 21.
- the compensator 27 makes it possible to give a tension T substantially constant and of desired value to the weft thread in the vicinity of the sickle, this relatively independently of the position of the sickle during its movement F 2 .
- the invention makes it possible to adjust, at each instant, the speed of the donor 16 as a function of the need for weft thread, so that the quantity of thread supplied by the donor 16 is always in line with the need weft yarn which has, moreover, a tension T substantially constant.
- a single servomotor 17 may be used to drive, around the same axis A-A ', several drums 15 1 to 15 n which are in number corresponding to the number of sickles 11 to 1 n .
- a single servomotor 22 is, moreover, used to drive, simultaneously and around another axis B-B ', n arms 21 1 to 21 n in the eyelets 20 1 to 20 n which pass the weft son 3 1 to 3 n .
- the torque C 2 exerted by the servomotor 22 is adjusted to take into account the number of arms 21 1 to 21 n to be driven.
- an electrical signal S 1 is used by a control unit 18 to drive the motor 17 as a function of the angular position of the motor 22 detected by a sensor 25.
- the invention can also be implemented when each sickle is fed with several weft son. In this case, as many donors are used as son and son are selected and presented to the sickle by a conventional frame selector.
- a single pair of donor 16 and compensator 27 can be used for a wide range of weft thread voltages since only the adjustment of the torque of the servomotor 22 makes it possible to adjust this voltage.
- the servomotors 17 and 22 are structurally identical.
- the motor 22 can be replaced by a linear motor within the compensator 27.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0315397A FR2864555B1 (fr) | 2003-12-24 | 2003-12-24 | Procede de controle de la tension d'alimentation d'au moins un fil de trame, dispositif d'alimentation en fil de trame et metier a tisser equipe d'un tel dispositif |
FR0315397 | 2003-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1550751A1 EP1550751A1 (fr) | 2005-07-06 |
EP1550751B1 true EP1550751B1 (fr) | 2012-07-25 |
Family
ID=34566350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04356206A Active EP1550751B1 (fr) | 2003-12-24 | 2004-12-23 | Procédé de contrôle de la tension d'alimentation d'au moins un fil de trame, dispositif d'alimentation en fil de trame et métier à tisser équipé d'un tel dispositif |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1550751B1 (ko) |
KR (1) | KR101156593B1 (ko) |
CN (1) | CN1637185B (ko) |
FR (1) | FR2864555B1 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200825231A (en) * | 2006-09-05 | 2008-06-16 | Textilma Ag | Ribbon needle loom |
CN102051755B (zh) * | 2011-01-13 | 2012-07-25 | 海宁安捷复合材料有限责任公司 | 一种剑杆机改进结构 |
TW201319347A (zh) * | 2011-11-15 | 2013-05-16 | Kyang Yhe Delicate Machine Co Ltd | 緯紗輸送控線裝置 |
CN103173920B (zh) * | 2011-12-26 | 2014-08-27 | 广野精机有限公司 | 纬纱输送控线装置 |
KR101554967B1 (ko) * | 2015-03-04 | 2015-09-22 | 주식회사 유니웜 | 금속사 장력 조절장치와 이를 이용한 면상발열체 직조방법 |
CN105177834B (zh) * | 2015-09-28 | 2018-04-10 | 福建梭罗复合材料研究有限公司 | 一种储纬器的进出纬线调节控制系统 |
CN105177831A (zh) * | 2015-09-28 | 2015-12-23 | 嵊州市中森电子有限公司 | 一种带有张力调节装置的储纬器 |
CN105332149B (zh) * | 2015-10-21 | 2018-05-29 | 泉州市新空间装饰工程有限公司 | 一种张力可控的储纬器 |
CN105568512B (zh) * | 2016-01-15 | 2017-08-25 | 佛山慈慧通达科技有限公司 | 三维织机纬线张力控制机构及其使用方法 |
SE1650986A1 (en) * | 2016-07-06 | 2018-01-07 | Iro Ab | Weft yarn feeding arrangement with motor drive |
EP3481981B1 (en) * | 2016-07-11 | 2021-02-24 | Vandewiele Sweden AB | Zero-twist yarn feeding device |
CN106435964A (zh) * | 2016-11-29 | 2017-02-22 | 江苏悦达家纺有限公司 | 一种可调节纬纱张力的储纬器 |
CN106811856A (zh) * | 2016-12-29 | 2017-06-09 | 重庆节之道竹业有限公司 | 一种编织机械送纬机构 |
CN115258823B (zh) * | 2022-05-19 | 2023-08-22 | 西安航空学院 | 一种光纤绕线机张力调节结构及方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5516942A (en) * | 1978-07-18 | 1980-02-06 | Yoshida Kogyo Kk | Weft yarn tensioning apparatus |
CH657388A5 (en) * | 1983-03-22 | 1986-08-29 | Textilma Ag | Ribbon loom |
DE4131656A1 (de) | 1991-09-23 | 1993-03-25 | Iro Ab | Verfahren und webmaschine |
DE4131652A1 (de) * | 1991-09-23 | 1993-04-01 | Iro Ab | Webmaschine und eintragbremse fuer webmaschinen |
JPH11217748A (ja) | 1998-01-22 | 1999-08-10 | Asagoe Kikai Seisakusho:Kk | 緯糸自動切換連続送出装置 |
JPH11286851A (ja) | 1998-03-31 | 1999-10-19 | Tsudakoma Corp | 緯糸張力調整装置 |
DE19858682A1 (de) * | 1998-12-18 | 2000-06-21 | Iro Patent Ag Baar | Fadenverarbeitungssystem und Verfahren zum Liefern von Schußfäden |
-
2003
- 2003-12-24 FR FR0315397A patent/FR2864555B1/fr not_active Expired - Fee Related
-
2004
- 2004-12-10 KR KR1020040104273A patent/KR101156593B1/ko active IP Right Grant
- 2004-12-23 EP EP04356206A patent/EP1550751B1/fr active Active
- 2004-12-24 CN CN2004101028778A patent/CN1637185B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1637185A (zh) | 2005-07-13 |
KR101156593B1 (ko) | 2012-06-20 |
KR20050065309A (ko) | 2005-06-29 |
FR2864555B1 (fr) | 2006-01-27 |
FR2864555A1 (fr) | 2005-07-01 |
CN1637185B (zh) | 2010-06-16 |
EP1550751A1 (fr) | 2005-07-06 |
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