EP0761856A2 - Procédé et dispositif de commande de la formation de la foule pour métier à tisser - Google Patents

Procédé et dispositif de commande de la formation de la foule pour métier à tisser Download PDF

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Publication number
EP0761856A2
EP0761856A2 EP96113088A EP96113088A EP0761856A2 EP 0761856 A2 EP0761856 A2 EP 0761856A2 EP 96113088 A EP96113088 A EP 96113088A EP 96113088 A EP96113088 A EP 96113088A EP 0761856 A2 EP0761856 A2 EP 0761856A2
Authority
EP
European Patent Office
Prior art keywords
shedding
control pattern
loom
rotation control
rotation
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
EP96113088A
Other languages
German (de)
English (en)
Other versions
EP0761856A3 (fr
EP0761856B1 (fr
Inventor
Masanobu K.K. Toyoda Jidoshokki Hattori
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works Ltd
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 Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0761856A2 publication Critical patent/EP0761856A2/fr
Publication of EP0761856A3 publication Critical patent/EP0761856A3/fr
Application granted granted Critical
Publication of EP0761856B1 publication Critical patent/EP0761856B1/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
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D03C13/02—Shedding mechanisms not otherwise provided for with independent drive motors
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/007—Loom optimisation

Definitions

  • the present invention relates generally to a shedding control method and a shedding control apparatus for a weaving machine or loom. More specifically, the invention is concerned with a shedding control for allowing shedding operation to follow rotation of a loom with enhanced accuracy.
  • JP-A-5-25751 and 322644/1994 JP-A-6-322644
  • shedding control apparatuses in which a plurality of heald frames are driven separately from one another by means of electric motors which are dedicated to the heald frames, respectively, wherein each of the heald frames is operatively connected to the dedicated motor in one-to-one correspondence relation.
  • the control loop gain is adjusted in dependence on magnitude of the deviation so that the drive motor can follow the rotation of the main shaft of the loom with high accuracy.
  • rotation of the main shaft of the loom is susceptible to fluctuations due to the beating, change in the tension of warps or for the like cause. Consequently, when rotation speed of the main shaft of the loom changes or varies, rotation of the drive motor is so controlled as to follow such variations.
  • control will necessarily be accompanied with repetition of acceleration and deceleration, which is of source undesirable. Needless to say, such operation of the electric motor will incur increasing of the power consumption.
  • a shedding apparatus of a loom in which a heald frame assembly is driven by a shedding drive motor provided independent of a loom drive motor a shedding control method which can ensure enhanced stability of motion of the heald frame assembly while suppressing the electric power consumption to a possible minimum.
  • Another object of the present invention is to provide a shedding control apparatus for carrying out the control method mentioned above.
  • a shedding control method according to which a rotation control pattern for controlling the shedding drive motor as a function of a time as a variable, is generated on the basis of rotation speed of a loom as detected, wherein operation of the shedding drive motor is controlled in accordance with the rotation control pattern.
  • the shedding drive motor is operated in accordance with the rotation control pattern as a function of the time lapse given as a variable during the operation phase of the loom in which synchronism of high accuracy is not required between the rotation angle of the loom and the operating position of the heald frame assembly.
  • the rotation control pattern based on the time as the variable is generated on the actual rotation speed of the loom.
  • a shedding control method according to which a first rotation control pattern for controlling a shedding drive motor as a function of rotation angle of the loom as a variable and a second rotation control pattern for controlling the shedding drive motor as a function of time as a variable are generated or prepared, wherein operation of the shedding drive motor is controlled in accordance with the first rotation control pattern during a speed-variable operation phase of the loom, while controlling the shedding drive motor in accordance with the second rotation control pattern during a constant-speed operation phase of the loom.
  • the shedding drive motor is operated in accordance with the first rotation control pattern during the speed-changing operation phase of the loom such as a period during which the loom speed is increased up to a steady operation speed or a period in which the loom is decelerated to the stationary state, in order to establish synchronism between the rotation angle of the loom and the operating position of the heald frame assembly.
  • the shedding drive motor is operated in accordance with the second rotation control pattern in order to ensure smooth motion of the heald frame assembly.
  • a shedding control method according to which a first rotation control pattern for controlling the shedding drive motor as a function of rotation angle of the loom as a variable and a second rotation control pattern for controlling the shedding drive motor as a function of time as a variable are generated or prepared, wherein the first rotation control pattern and the second rotation control pattern may concurrently be employed in combination for controlling the shedding drive motor.
  • X % of the first rotation control pattern and (100 - X) % of the second rotation control pattern are employed in combination for controlling the shedding drive motor.
  • V1 rotation speed according to the first rotation control pattern
  • V2 rotation speed according to the second rotation control pattern
  • the shedding drive motor is driven at a combined or synthesized speed given by V1 ⁇ X + V2 (100 - X).
  • the second rotation control pattern may preferably be generated on the basis of an actual rotation speed of the loom as detected.
  • a shedding control apparatus which includes a first rotation control pattern setting means for setting a first rotation control pattern for controlling a shedding drive motor as a function of rotation angle of the loom as a variable, a second rotation control pattern setting means for setting a second rotation control pattern for controlling the shedding drive motor as a function of time lapse as a variable, an operation speed detecting means for detecting an operation speed of the loom, and a selecting means for selecting at least one of the first rotation control pattern and the second rotation control pattern on the basis of operation speed state detected by the operation speed detecting means.
  • the shedding drive motor is operated in accordance with the first rotation control pattern during the speed-changing operation phase of the loom such as a period during which the loom speed is increased up to a steady operation speed or a period in which the loom is decelerated to the stationary state, in order to establish synchronism or matching between the rotation angle of the loom and the operating position of the heald frame assembly.
  • the shedding drive motor is operated in accordance with the second rotation control pattern in order to ensure smooth motion of the heald frame assembly.
  • a shedding drive motor 12 is disposed underneath a heald frame assembly 11.
  • the shedding drive motor 12 may be constituted by a variable-speed electric motor of a servo-motor type.
  • a crank disk 13 is fixedly mounted on an output shaft of the shedding drive motor 12, wherein the crank disk 13 is operatively coupled to a lower heald frame of the heald frame assembly 11 by means of a connecting rod 14.
  • the crank disk 13 constitutes a crank mechanism in cooperation with the connecting rod 14, wherein the rotation of the shedding drive motor 12 in one direction is translated to upward/downward motions of the heald frame assembly 11 by means of the crank mechanism.
  • the shedding drive motor 12 is controlled under the command of a shedding control apparatus generally designated by reference character C1.
  • the shedding control apparatus C1 is so designed as to control the shedding drive motor 12 through a feedback loop on the basis of the rotation angle information which can be obtained from a rotary encoder 121 incorporated in or provided in association with the shedding drive motor 12.
  • the shedding control apparatus C1 is comprised of a first rotation control pattern storing unit 16 for storing a first rotation control pattern which is inputted through an input unit 15, a second rotation control pattern storing unit 17 for storing a second rotation control pattern, a control pattern generating circuit 18 for generating the second rotation control pattern, and a selecting circuit 19 for selecting either the first rotation control pattern or the second rotation control pattern.
  • the input unit 15 and the first rotation control pattern storing unit 16 cooperate to constitute a first rotation control pattern setting means
  • the second rotation control pattern storing unit 17 and the control pattern generating circuit 18 constitute a second rotation control pattern setting means.
  • the control pattern generating circuit 18 generates the second rotation control pattern on the basis of the rotation speed information obtained from the rotary encoder 20 which serves as a means for detecting a rotation angle of the loom.
  • the selecting circuit 19 constituting the selecting means is so designed as to select either one of the first and second rotation control patterns on the basis of the rotation speed information obtained from the rotary encoder 20 which constitutes an operation speed detecting means.
  • the selecting circuit 19 controls the operation of the shedding drive motor 12 through a feedback loop on the basis of the rotation control pattern as selected and rotation angle information obtained from the rotary encoder 121 provided in association with the shedding drive motor 12. In other words, the selecting circuit 19 issues a speed command signal in accordance with a difference between the rotation angle obtained from the rotary encoder 121 and the rotation angle determined by the rotation control pattern.
  • a loom control computer C2 which is in charge of controlling the operation of a loom driving motor 21.
  • the loom control computer C2 is so implemented as to start operation of the loom driving motor 21 in response to a closing operation of a starting switch (not shown) to thereby output a loom operation start signal to both the control pattern generating circuit 18 and the selecting circuit 19.
  • the loom control computer C2 stops operation of the loom driving motor 21 and at the same time outputs a weaving operation stop signal to both the control pattern generating circuit 18 and the selecting circuit 19.
  • a curve D shown therein represents a shedding motion pattern of the heald frame assembly 11, while a curve E1 represent a first rotation control pattern corresponding to the shedding motion pattern of the heald frame assembly 11.
  • the rotation angle of the loom is taken along the abscissa, while the height of the heald frame assembly 11 is taken along the ordinate.
  • the rotation angle of the loom is taken along the abscissa, while that of the shedding drive motor 12 is taken along the ordinate.
  • each of pulse-like waveforms F1, F2, F3 and F4 represents an origin signal outputted from the rotary encoder 20 upon every complete rotation of the loom.
  • a curve E2 represents the second rotation control pattern is generated by the control pattern generating circuit 18 on the basis of rotation speeds of the loom determined on the basis of the time lapses intervening between the origin signals F1, ⁇ , F4.
  • time is taken along the abscissa with the rotation angle of the shedding drive motor 12 being taken along the ordinate.
  • the rotation speed between the origin signals F3 and F2 is utilized, while for generation of the rotation control pattern section between the origin signals F3 and F2, the rotation speed between the origin signals F2 and F1 is employed.
  • the rotation speed during a period defined by an immediately preceding origin signals is utilized.
  • the rotation speed in the second rotation control pattern between the origin signals F1 and F3 is constant, while during the period between the origin signals F3 and F4, the rotation speed remains equal to zero.
  • Figures 4 and 5 are flow charts for illustrating shedding control operation carried out by the shedding control apparatus C1.
  • the selecting circuit 19 arithmetically determines change of the rotation speed (i.e., acceleration or deceleration) of the loom on the basis of the rotation angle detection information derived from the output of the rotary encoder 20.
  • the selecting circuit 19 decides that the rotation speed of the loom is changing (Fig. 4, step S1, "YES"), to read out the first rotation control pattern from the first rotation control pattern storing unit 16 (step S2).
  • operation of the shedding drive motor 12 is controlled through the feedback loop in accordance with the first rotation control pattern selected by the selecting circuit 19 and on the basis of the rotation angle information derived from the output of the rotary encoder 121 provided in association with the shedding drive motor 12.
  • this feedback control it is possible to allow the shedding drive motor 12 to follow the change of the rotation speed of the loom.
  • the control pattern generating circuit 18 starts generation of the second rotation control pattern in response to the input of a weaving operation start signal (Fig. 5, step S7, "YES"). More specifically, the control pattern generating circuit 18 arithmetically determines the rotation speed of the loom on the basis of the origin signals as inputted from the rotary encoder 20 (Fig. 5, steps S8 and S9), and then generates the second rotation control pattern on the basis of the rotation speed as determined arithmetically (Fig. 5, step S10).
  • the selecting circuit 19 decides that the loom is operating in a steady operation mode, to thereby select the second rotation control pattern read out from the second rotation control pattern storing unit 17 (Fig. 4, step S3).
  • the shedding drive motor 12 is controlled through a feedback loop in accordance with the second rotation control pattern as selected and on the basis of the rotation angle information derived from the rotary encoder 121 provided in association with the shedding drive motor 12. Furthermore, when the weaving operation stop signal is inputted (Fig.
  • step S4, "YES" the selecting circuit 19 controls operation of the shedding drive motor 12 through the feedback loop in accordance with the second rotation control pattern and on the basis of the rotation angle information derived from the output of the rotary encoder 121 incorporated in the shedding drive motor 12 (Fig. 4, steps S4, S1, S2).
  • the shedding drive motor 12 can rotate smoothly without being affected by change in the rotation speed of the loom during one complete rotation.
  • the first rotation control pattern is selected so that the shedding operation of the heald frame assembly 11 can follow the acceleration or deceleration of the loom.
  • the second rotation control pattern is selected in the steady operation of the loom in which the rotation speed of the loom need not be followed up with high accuracy.
  • the rotational position in the first rotation control pattern will necessarily intersect the rotational position in the second rotation control pattern.
  • the position of such intersect can be arithmetically determined on the basis of the first rotation control pattern and the second rotation control pattern which is generated during every complete rotation of the loom.
  • change-over between the first rotation control pattern and the second rotation control pattern is performed at a time point at which the above-mentioned rotational positions in both the rotation control patterns intersect each other.
  • a second embodiment of the present invention will be described by reference to Fig. 6.
  • the general configuration of the loom control system is same as the first embodiment described above, the function of the selecting circuit 19 differs from that of the first embodiment.
  • generation of the second rotation control pattern is same as in the case of the first embodiment.
  • the selecting circuit 19 is so implemented as to select a combination of X % of the first rotation control pattern and (100 - X) % of the second rotation control pattern, wherein X represents a weighting factor for the first rotation control pattern and (100 - X) represents a weighting factor for the second rotation control pattern.
  • the selecting circuit 19 selects a combined or synthesized speed given by the following expression (2) (Fig. 6, S14): V1 ⁇ ⁇ 1 + V2 ⁇ ⁇ 2 where coefficients ⁇ 1 and ⁇ 2 represent, respectively, the weighting factors which meet the conditions that ⁇ 1 ⁇ ⁇ 2.
  • the motion stability of the heald frame assembly is enhanced as the weighting factor 2 is selected greater.
  • a third embodiment of the present invention will be described by reference to a flow chart shown in Fig. 7.
  • the general configuration of the loom control system is same as the first embodiment described above, the function of the selecting circuit differs from that of the selecting circuit 19 of the first embodiment.
  • Generation of the second rotation control pattern is same as in the case of the first embodiment.
  • the loom control computer C2 outputs the weaving operation start signal to the selecting circuit 19 (Fig. 7, S22)
  • the first rotation control pattern is selected by the selecting circuit 19 (Fig. 7, S23).
  • the selecting circuit 19 selects the second rotation control pattern (Fig. 7, S25).
  • the predetermined time or period t is so set as to correspond substantially to a rise-up time taken for the loom to attain the steady operation state.
  • the first rotation control pattern is selected only during a period intervening between the start of the loom operation and the steady operation state thereof and a period intervening between the steady operation state and stoppage of the loom operation.
  • substantially same advantageous effects as those described hereinbefore in conjunction with the first embodiment can be obtained.
  • the control or procedure for detecting change in the rotation speed of the loom can be much simplified, to a further advantage.
  • the first rotation control pattern may be selected only during the weaving operation.
  • the second rotation control pattern may be prepared on the basis of the rotation speed of the loom set previously for the steady operation.
  • the first embodiment may be so modified that the first rotation control pattern is selected during a predetermined period starting from the time point at which the loom start signal is inputted.
  • detection of the rotation speed change of the loom can be spared, whereby the control system can correspondingly be simplified.
  • the first rotation control pattern may be selected in response to the input of the loom operation stop signal.
  • change-over between the first rotation control pattern and the second rotation control pattern may be performed at a time point at which the rotational positions of the shedding drive motor in both patterns intersect with each other.
  • the shock which may occur upon changing-over of the first and second rotation control patterns can be mitigated, which in turn means that stability of the control system can be enhanced.
  • a shedding control apparatus which can ensure enhanced stability of motion of the heald frame while suppressing the power consumption to a minimum.
  • the shedding control apparatus for controlling the shedding drive motor through a feedback loop includes a first rotation control pattern storing unit for storing a first rotation control pattern, a second rotation control pattern storing unit for storing a second one, a control pattern generating circuit for generating the second rotation control pattern and a selecting circuit.
  • the control pattern generating circuit generates the second rotation control pattern on the basis of the rotation speed information obtained from a rotary encoder.
  • the selecting circuit is so designed as to select the first or second rotation control patterns on the basis of the rotation speed changing information obtained from the rotary encoder.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP96113088A 1995-09-04 1996-08-14 Procédé et dispositif de commande de la formation de la foule pour métier à tisser Expired - Lifetime EP0761856B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP226798/95 1995-09-04
JP22679895 1995-09-04
JP22679895A JP3214307B2 (ja) 1995-09-04 1995-09-04 織機における開口制御方法及び装置

Publications (3)

Publication Number Publication Date
EP0761856A2 true EP0761856A2 (fr) 1997-03-12
EP0761856A3 EP0761856A3 (fr) 1998-11-25
EP0761856B1 EP0761856B1 (fr) 2002-05-02

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EP96113088A Expired - Lifetime EP0761856B1 (fr) 1995-09-04 1996-08-14 Procédé et dispositif de commande de la formation de la foule pour métier à tisser

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EP (1) EP0761856B1 (fr)
JP (1) JP3214307B2 (fr)
KR (1) KR0180984B1 (fr)
DE (1) DE69620960T2 (fr)
TW (1) TW358836B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893525A1 (fr) * 1997-07-24 1999-01-27 Sulzer Rüti Ag Système d'entraínement pour métier à tisser ainsi que métier à tisser équipé d'un tel système
WO2002034982A2 (fr) * 2000-10-26 2002-05-02 Lindauer Dornier Gesellschaft Mbh Procede d'utilisation d'un metier mecanique/mecanique d'armure
EP1396563A1 (fr) * 2002-09-05 2004-03-10 Tsudakoma Kogyo Kabushiki Kaisha Procédé pour contrôler le redémarrage d'un métier à tisser
WO2006005599A2 (fr) * 2004-07-14 2006-01-19 Picanol N.V. Element d'un appareil de formation de la foule et machine a tisser
EP1739216A1 (fr) * 2005-06-29 2007-01-03 Tsudakoma Kogyo Kabushiki Kaisha Dispositif électrique de formation de la foule pour un métier à tisser
EP1650334A3 (fr) * 2004-10-25 2007-03-21 Tsudakoma Kogyo Kabushiki Kaisha Dispositif de formation de la foule électrique pour un métier à tisser
WO2008101642A1 (fr) * 2007-02-19 2008-08-28 Picanol N.V. Procédé de commande de moteurs d'entraînement et commande pour moteurs d'entraînement d'un métier à tisser
CN100585043C (zh) * 2002-08-07 2010-01-27 林道尔·多尼尔有限责任公司 在单独驱动装置下的织机和开口机的工作方法
CN102864552A (zh) * 2011-07-06 2013-01-09 株式会社丰田自动织机 开口装置及其控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782458B (zh) * 2009-12-17 2011-11-09 江苏万工科技集团有限公司 一种开口机构运动规律的运动试验装置
DE102011006368B3 (de) * 2011-03-29 2012-02-16 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren und Webmaschine zur Webfachbildung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364002A (en) * 1978-12-30 1982-12-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control of operation of loom
EP0513728A1 (fr) * 1991-05-13 1992-11-19 Tsudakoma Kogyo Kabushiki Kaisha Dispositif de commande de formation de la foule pour metier à tisser
EP0547004A1 (fr) * 1991-12-12 1993-06-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode de contrôle pour les métier à tisser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3089070B2 (ja) * 1990-12-25 2000-09-18 津田駒工業株式会社 織機の運動機構制御装置
JP3124652B2 (ja) * 1993-05-12 2001-01-15 津田駒工業株式会社 織機の運動機構制御装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364002A (en) * 1978-12-30 1982-12-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control of operation of loom
EP0513728A1 (fr) * 1991-05-13 1992-11-19 Tsudakoma Kogyo Kabushiki Kaisha Dispositif de commande de formation de la foule pour metier à tisser
EP0547004A1 (fr) * 1991-12-12 1993-06-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode de contrôle pour les métier à tisser

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 315 (C-1071), 16 June 1993 & JP 05 025751 A (TSUDAKOMA CORP), 2 February 1993 *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31 March 1995 & JP 06 322644 A (TSUDAKOMA CORP), 22 November 1994 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893525A1 (fr) * 1997-07-24 1999-01-27 Sulzer Rüti Ag Système d'entraínement pour métier à tisser ainsi que métier à tisser équipé d'un tel système
WO2002034982A2 (fr) * 2000-10-26 2002-05-02 Lindauer Dornier Gesellschaft Mbh Procede d'utilisation d'un metier mecanique/mecanique d'armure
WO2002034982A3 (fr) * 2000-10-26 2003-05-08 Dornier Gmbh Lindauer Procede d'utilisation d'un metier mecanique/mecanique d'armure
US6953063B2 (en) 2000-10-26 2005-10-11 Lindauer Dornier Gesellschaft Mbh Method for operating a weaving and shedding machine
CN100585043C (zh) * 2002-08-07 2010-01-27 林道尔·多尼尔有限责任公司 在单独驱动装置下的织机和开口机的工作方法
EP1396563A1 (fr) * 2002-09-05 2004-03-10 Tsudakoma Kogyo Kabushiki Kaisha Procédé pour contrôler le redémarrage d'un métier à tisser
WO2006005599A2 (fr) * 2004-07-14 2006-01-19 Picanol N.V. Element d'un appareil de formation de la foule et machine a tisser
WO2006005599A3 (fr) * 2004-07-14 2006-07-13 Picanol Nv Element d'un appareil de formation de la foule et machine a tisser
US7918248B2 (en) 2004-07-14 2011-04-05 Picanol N.V. Component for a shed-forming apparatus and weaving machine
EP1650334A3 (fr) * 2004-10-25 2007-03-21 Tsudakoma Kogyo Kabushiki Kaisha Dispositif de formation de la foule électrique pour un métier à tisser
CN1766190B (zh) * 2004-10-25 2011-03-16 津田驹工业株式会社 织机的电动开口装置
CN1891876B (zh) * 2005-06-29 2010-09-29 津田驹工业株式会社 织机的电动开口装置
EP1739216A1 (fr) * 2005-06-29 2007-01-03 Tsudakoma Kogyo Kabushiki Kaisha Dispositif électrique de formation de la foule pour un métier à tisser
WO2008101642A1 (fr) * 2007-02-19 2008-08-28 Picanol N.V. Procédé de commande de moteurs d'entraînement et commande pour moteurs d'entraînement d'un métier à tisser
CN101663426B (zh) * 2007-02-19 2012-06-27 必佳乐有限公司 用于控制驱动电机的方法和用于织机的驱动电机的控制器
CN102864552A (zh) * 2011-07-06 2013-01-09 株式会社丰田自动织机 开口装置及其控制方法
CN102864552B (zh) * 2011-07-06 2014-04-16 株式会社丰田自动织机 开口装置及其控制方法

Also Published As

Publication number Publication date
DE69620960D1 (de) 2002-06-06
KR970015819A (ko) 1997-04-28
KR0180984B1 (ko) 1999-02-01
JPH0978388A (ja) 1997-03-25
DE69620960T2 (de) 2002-11-21
TW358836B (en) 1999-05-21
EP0761856A3 (fr) 1998-11-25
EP0761856B1 (fr) 2002-05-02
JP3214307B2 (ja) 2001-10-02

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