EP0999298B1 - Ring spinning machine with individual spindle drives - Google Patents

Ring spinning machine with individual spindle drives Download PDF

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Publication number
EP0999298B1
EP0999298B1 EP19990117969 EP99117969A EP0999298B1 EP 0999298 B1 EP0999298 B1 EP 0999298B1 EP 19990117969 EP19990117969 EP 19990117969 EP 99117969 A EP99117969 A EP 99117969A EP 0999298 B1 EP0999298 B1 EP 0999298B1
Authority
EP
European Patent Office
Prior art keywords
spindle
spinning machine
speed
motor
motors
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.)
Expired - Lifetime
Application number
EP19990117969
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German (de)
English (en)
French (fr)
Other versions
EP0999298A3 (en
EP0999298A2 (en
Inventor
Masayoshi Tsuboi
Yutaka Shinozaki
Tatsuya Uematsu
Yasuharu Odachi
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
Toyota Industries Corp
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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Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP0999298A2 publication Critical patent/EP0999298A2/en
Publication of EP0999298A3 publication Critical patent/EP0999298A3/en
Application granted granted Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/244—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles each spindle driven by an electric motor

Definitions

  • the present invention relates to a single spindle driving ring fine spinning machine.
  • Such a conventional single spindle driving fine spinning machine uses induction motors 10 for driving the spindles, respectively, as shown in FIG. 4, and these induction motors 10 are collectively driven by only one inverter 11.
  • reference numeral 12 denotes a draft roller drive motor and that reference numeral 13 denotes an inverter for the draft roller drive motor 12.
  • slip occurs in the induction motor.
  • the induction motor has addressed a shortcoming. That is, slip causes the rotational speed of the motor to change with changing yarn winding amount, and then causes the yarn twisting amount to change with changing rotational speed of the motor.
  • the machine can not stop only the motor that corresponds to a spindle suffering from an abnormality such as a yarn breakage singly and through remote operation.
  • a special current detector for detecting a current supplied to each driving motor needs to be provided.
  • EP 0 389 118 A discloses a single spindle driving ring for a spinning machine.
  • a spindle is attached to a motor shaft of a switched reluctance drive motor.
  • Control of the switched reluctance drive motor is provided by means of a control system.
  • the speed and acceleration of the reluctance drive motor is determined by a local controller.
  • a global controller ensures the synchronization of the spindle positions of the individual spindles by instructing the local controllers of the individual spindles. Feedback from the motor to the local controller is provided such that the controller is aware of the status of the motor.
  • An object of the present invention is to provide a single spindle driving ring fine spinning machine that has overcome the aforementioned shortcomings that: the yarn twisting amount is changed due to a change in winding amount and due to a change in rotational speed caused by the fact that the induction motor is used as a single spindle driving motor; and a special detector such as a current detector needs to be provided in order to check the driving condition of each spindle, i.e., whether an abnormality such as a yarn breakage has occurred at each spindle.
  • a single spindle driving ring fine spinning machine comprising single spindle driving motors dedicated to spindles, respectively, wherein the single spindle driving motors are synchronous motors; each of the synchronous motors is subjected to a pulse width modulation control based an a difference between a speed reference inputted from an outside source and a speed of that synchronous motor; and the driving condition of each of the spindles is monitored based an a control signal used for the drive control of a corresponding one of the synchronous motors.
  • Synchronous motors are used in place of the conventional induction motors. That is, each spindle is driven by an electric motor such as a brushless dc motor or an SR motor in which the winding is provided an the stator to produce a rotating field, and the rotor having dc magnetic poles is rotated at a synchronous speed that is the same as the speed of the rotating field.
  • an electric motor such as a brushless dc motor or an SR motor in which the winding is provided an the stator to produce a rotating field
  • the rotor having dc magnetic poles is rotated at a synchronous speed that is the same as the speed of the rotating field.
  • the synchronous motor maintains its rotational speed constant, and thus the control signal used for the drive control of the synchronous motor undergoes a drastic change. Therefore, by monitoring the control signal, the driving condition of each spindle can be checked.
  • the control signal is a PWM duty used in the pulse width modulation control.
  • the driving condition of each spindle can be checked.
  • the driving condition of each spindle may be checked by monitoring a current reference used in a speed PI control.
  • the synchronous motor for driving such a spindle may be stopped.
  • the operation of only a spindle at which an abnormality such as a yarn breakage has occurred can be stopped singly as well as through remote operation.
  • a draft roller (not shown) is driven by a draft roller drive motor 12 as shown in FIG. 1.
  • the draft roller drive motor 12 is driven by a commercial alternating current feed line 4 through an inverter 13.
  • many spindles (not shown) are driven by synchronous motors 1 such as brushless dc motors or SR motors for driving spindle.
  • Each spindle drive motor 1 has a dedicated inverter 2 connected thereto, and each inverter 2 is supplied with direct current from a dc power supply 3.
  • Each inverter 2 effects control to drive the corresponding spindle drive motor 1 based on the difference between a speed reference signal from a main control section 5 and a speed signal from a corresponding speed sensor 6.
  • the drive control of each spindle driving synchronous motor is effected by the inverter 2 in such a manner as shown in FIG. 2.
  • a speed command section 7 of the inverter 2 which is constructed of a speed amplifier, sends a predetermined speed reference signal.
  • the current amplifier of a current command section 8 sends a current reference.
  • a PWM circuit 9 sends a predetermined PWM signal to base drive circuits 10, and the corresponding spindle drive motor 1 is driven based on the PWM signal.
  • the spindle drive motor 1 has the speed sensor 6. A signal from the speed sensor 6 is fed back to the input side of the speed command section 7. Further, in this embodiment, the PWM duty set by the PWM circuit 9, which serves as a control signal, is fed back to the input side of the speed command section 7 via a determination section 11.
  • FIG. 3A schematically shows the rotational speed of the spindle drive motor 1 and its current changes in function of winding time. If it is supposed that the rotational speed of the spindle drive motor 1 is maintained constant in function of the winding time, then the load increases with a gradual increase in the winding amount from the winding start, and thus the current supplied to the spindle drive motor 1 also increases. However, when a yarn breakage has occurred for some reason, the load gets reduced, and as a result, the current supplied to the spindle drive motor 1 gets reduced drastically and remains almost constant at such a reduced level. The current supplied to the spindle drive motor 1 and the phase voltage of its winding exhibit such values as shown in FIG. 3B during normal operation.
  • the main control section 5 stops the spindle drive motor 1 for the spindle of interest. It may also be designed so that the abnormality of the spindle of interest is only displayed on a display unit (not shown) without stopping the corresponding spindle drive motor 1.
  • an abnormality such as a yarn breakage can be determined by causing the current command section 8 to input the current reference to the determination section 11 as shown by the broken line in FIG. 2, the current reference serving as a control signal to be inputted from the current command section 8 to the PWM circuit 9. Further, as shown by the one-dot chain line in FIG. 2, an abnormality can be determined by causing the speed command section 7 to input the speed reference signal to the determination section 11, the speed reference signal serving as a control signal to be inputted from the speed command section 7 to the current command section 8.
  • the spindle drive motor 1 can be stopped in the following ways.
  • a control signal such as the PWM duty in the inverter 2 is outputted directly to the main control section 5, so that a determination section commonly used by the spindles is provided in the main control section 5. Further, the speed reference from the main control section 5 is invalidated based on the determination result obtained by the determination section 11 of each inverter 2.
  • the rotational speed of the spindle drive motor can be maintained at a predetermined value independently of a change in the winding amount, and thus the shortcoming that the twisting amount of a yarn is changed due to a change in the rotational speed of the motor that is caused by a change in the winding amount can be eliminated.
  • the driving conditions of the spindles can be detected on control software by monitoring a control signal used for the drive control of each of the synchronous motors, and thus abnormalities can be detected without using current sensors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Control Of Multiple Motors (AREA)
EP19990117969 1998-11-05 1999-09-16 Ring spinning machine with individual spindle drives Expired - Lifetime EP0999298B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31508898 1998-11-05
JP31508898 1998-11-05

Publications (3)

Publication Number Publication Date
EP0999298A2 EP0999298A2 (en) 2000-05-10
EP0999298A3 EP0999298A3 (en) 2000-09-06
EP0999298B1 true EP0999298B1 (en) 2004-01-21

Family

ID=18061272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990117969 Expired - Lifetime EP0999298B1 (en) 1998-11-05 1999-09-16 Ring spinning machine with individual spindle drives

Country Status (3)

Country Link
EP (1) EP0999298B1 (zh)
CN (1) CN1188557C (zh)
DE (1) DE69914283T2 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3638858B2 (ja) † 2000-07-19 2005-04-13 日特エンジニアリング株式会社 線材の巻線方法及び装置
DE102005030600A1 (de) 2005-06-30 2007-01-11 Siemens Ag Einklemmschutzerkennung auf Prinzip von Vergleich des Duty Cicle einer PWM Regelung
EP1927686B1 (de) * 2006-12-01 2018-07-25 Maschinenfabrik Rieter Ag Spinnmaschinen mit elektrischen Antrieben
EP1927685A1 (de) * 2006-12-01 2008-06-04 Maschinenfabrik Rieter Ag Spinnmaschine mit elektrischen Antrieben
FR2911643B1 (fr) 2007-01-19 2009-03-13 Inergy Automotive Systems Res Methode et systeme de controle du fonctionnement d'une pompe
CN103510196B (zh) * 2013-08-13 2016-07-13 东华大学 一种基于主从控制模式的细纱机电机式锭子的控制方法
CN103668608A (zh) * 2013-12-27 2014-03-26 东华大学 一种低成本电锭驱动监控方法
DE102016214190B3 (de) * 2016-08-02 2017-07-20 Reinhard König Ringspinnmaschine und Verfahren zum Betrieb einer Ringspinnmaschine
CN108048972B (zh) * 2016-08-18 2020-05-12 滦南县万泽纺织有限公司 一种细纱机断纱保护方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229457A (en) * 1989-03-23 1990-09-26 Hollingsworth Ring spinning doubling and twisted frames with switched reluctance drive spindle motor
DE4411293C2 (de) * 1994-03-31 1996-05-30 Palitex Project Co Gmbh Antriebsvorrichtung für ein mit hoher Drehzahl rotierendes Bauteil
DE19522933C1 (de) * 1995-06-23 1996-12-12 Zinser Textilmaschinen Gmbh Antriebssystem für eine Spinnereimaschine, insbesondere Ringspinnmaschine

Also Published As

Publication number Publication date
EP0999298A3 (en) 2000-09-06
EP0999298A2 (en) 2000-05-10
DE69914283T2 (de) 2004-10-21
CN1188557C (zh) 2005-02-09
CN1253187A (zh) 2000-05-17
DE69914283D1 (de) 2004-02-26

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