EP0992620A1 - Rouleau pour le traitement de fils - Google Patents

Rouleau pour le traitement de fils Download PDF

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Publication number
EP0992620A1
EP0992620A1 EP99118546A EP99118546A EP0992620A1 EP 0992620 A1 EP0992620 A1 EP 0992620A1 EP 99118546 A EP99118546 A EP 99118546A EP 99118546 A EP99118546 A EP 99118546A EP 0992620 A1 EP0992620 A1 EP 0992620A1
Authority
EP
European Patent Office
Prior art keywords
yarn
drive motor
roller
rotating shaft
vibration sensor
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.)
Withdrawn
Application number
EP99118546A
Other languages
German (de)
English (en)
Inventor
Makoto Yanagawa
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery 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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP0992620A1 publication Critical patent/EP0992620A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll

Definitions

  • the present invention relates to an improvement on yarn-processing rollers for thermally treating yarn such as synthetic fiber.
  • the invention comprises a drive motor and a roller body attached to the rotating shaft of the drive motor and having a heater inside.
  • an object of the present invention is to promptly and accurately detect rotation errors in the rotating shaft of the yarn-processing roller so that the yarn-processing roller can be properly serviced, as by replacing the rotating shaft.
  • the present invention provides a yarn-processing roller comprising a drive motor and a roller body attached to the rotating shaft of the drive motor and heated by a heater, characterized in that a vibration sensor is provided to detect vibrations.
  • the vibration sensor is preferably provided in a rotating section that rotates with the rotating shaft of the drive motor and the vibration sensor is preferably provided opposite to the roller body, with the drive motor sandwiched between the roller body and the vibration sensor.
  • a noncontact signal transmission mans is provided to transmit a signal from the rotating section to a locking section that is stationary relative to the rotating section.
  • the vibration sensor is attached to a substrate provided on the rotating section side so that the noncontact signal transmission means sends a detection signal from the vibration sensor to the locking section.
  • Figure 1 shows a general configuration of one embodiment of a yarn-processing roller according to the present invention.
  • Figure 2 shows a general configuration of that part of the yarn-processing roller in Figure 1 which is opposed to a roller body with a drive motor sandwiched between the roller body and this part.
  • 1 is a drive motor
  • 2 is a rotating shaft of the drive motor 1.
  • the rotating shaft 2 is disposed in such a way as to penetrate a housing of the drive motor 1.
  • a roller body 3 is attached to one end of the rotating shaft 2 of the drive motor 1.
  • the roller body 3 is shaped like a cylinder with one of its ends closed, its central shaft corresponds to the rotating shaft 2 of the drive motor 1, and a circumferential wall 3a is attached to the rotating shaft 2 in such a way as to encompass the rotating shaft 2 at a specified interval therefrom.
  • a heater 4 that is fixed to the housing of the drive motor 1 and that projects from the housing and is parallel with the rotating shaft 2 at an interval therefrom is disposed in the gap between the circumferential wall 3a of the roller body 3 and the rotating shaft 2 of the drive motor 1.
  • the roller body 3 is heated by the heater 4, and a yarn is also heated when wound around the outer circumferential surface of the roller body 3.
  • a temperature sensor 5a for controlling the heater 4 and a temperature sensor 5b for issuing an alarm upon the detection of an error are embedded in the circumferential wall 3a of the roller body 3.
  • the temperature sensors 5a and 5b are each connected to a signal transmission circuit 7 attached to the other end of the rotating shaft 2 via a lead 26 that passes through the rotating shaft 2 of the drive motor 1.
  • the signal transmission circuit 7 will be described below.
  • a flange 6 is provided at the other end of the rotating shaft 2 of the drive motor 1 and has a first substrate 8 firmly screwed thereto. That is, when the rotating shaft 2 of the drive motor 1 is rotated, the first substrate 8 rotates at the same speed as the rotating shaft 2.
  • the first substrate forms a rotating section of the drive motor 1 together with the roller body 3.
  • a printed circuit board comprising electronic devices that constitute the signal transmission circuit 7 is mounted on the first substrate 8.
  • a highly sensitive vibration sensor 9 is mounted on the first substrate 8 near its outer circumference, together with other surface-mounted parts.
  • the vibration sensor 9 detects only vibrations (centrifugal force) in the radial outward direction of the first substrate 8.
  • a cylindrical protective cover 10 with both ends open projects from the body of the drive motor 1 along the rotating shaft 2 and coaxially therewith in such a way that the rotating shaft 2, the flange 6 and first substrate 8, and the parts mounted on the first substrate 8 are enclosed in the protective cover 10.
  • the protective cover 10 does not prevent the rotating shaft 2 from rotating.
  • the opening end of the protective cover 10 is closed by a circular fixing plate 27.
  • a second substrate 11 is screwed to the inside of the fixing plate 27 and disposed in front of the first substrate 8 at an interval therefrom.
  • a printed circuit board comprising electronic devices that constitute a signal reception circuit 12 is mounted on that surface of the second substrate 11, which is opposed to the first substrate 8.
  • the fixing plate 27 and the second substrate 11 are covered and protected by a cap 13 attached to the protective cover 10.
  • a secondary coil 14 of a transformer used as a power source is securely mounted on the rotating shaft 2 of the drive motor 1, and a primary coil 15 of the transformer used as a power source is mounted on the inner surface of the protective cover 10 opposite to the secondary coil 14.
  • the transformer supplies power to the rotating section of the drive motor.
  • FIG 3 is a circuit diagram of the signal transmission circuit 7 and signal reception circuit 12 for the yarn-processing roller shown in Figure 1.
  • the signal transmission circuit 7 is composed of a multiplexor 16, an amplifier 17, a voltage-frequency converter 18, and an optical transmission section 19. Detection signals from each of the temperature sensors 5a and 5b embedded in the roller body 3 and from the vibration sensor 9 are input to the multiplier 16, provided to the optical transmission section 19 through the amplifier 17 and voltage-frequency converter 18, and then transmitted through a light-emitting element 20 in the optical transmission section 19.
  • the signal reception circuit 10 is composed of a light reception section 22 that comprises a light-receiving element 21, a CPU (Central Processing Unit) 23, a gate circuit 24, and a power element 25 such as a thyristor.
  • a light reception section 22 that comprises a light-receiving element 21, a CPU (Central Processing Unit) 23, a gate circuit 24, and a power element 25 such as a thyristor.
  • An optical signal from the light-emitting element 20 of the signal transmission circuit 7 is received by the light-receiving element 21, and the received signal is converted by the light receiving section 22 into an electric signal, which is then input to the CPU 23.
  • a light reception section 22 that comprises a light-receiving element 21, a CPU (Central Processing Unit) 23, a gate circuit 24, and a power element 25 such as a thyristor.
  • An optical signal from the light-emitting element 20 of the signal transmission circuit 7 is received by the light-receiving element 21, and the received signal is converted by the
  • the multiplier 16 of the signal transmission circuit 7 is switched based on predetermined clock signals, and in response to this switching, an offset voltage from the amplifier 17 is switched to allow signals from the sensors 5a, 5b, and 9 to be identified by the signal reception circuit 10.
  • the yarn-processing roller is operated to wind a yarn around the outer circumferential surface of the roller body 3, where the yarn is heated. While the yarn is thermally treated, based on the detection signals from the temperature sensors 5a and 5b, the CPU 23 controls the heater 4 through the gate circuit 24 and the power element 25 so as to maintain the temperature of the rotor body 3 within a preset temperature range.
  • the CPU 23 issues an alarm to indicate that a rotation error has occurred, and stops the rotation of the roller body 3.
  • the cause of the rotation error is determined so that repairs of the yarn-processing roller can be effected.
  • the vibration sensor 9 is attached to the rotating section (the first substrate 8) which rotates together with the rotating shaft 2 of the drive motor 1.
  • the vibration level of the rotating shaft 2 can be directly detected to promptly and accurately detect rotation errors caused by bearing fatigue.
  • the vibration sensor 9 is disposed at that end of the rotating shaft 2 which is opposed to the end to which the roller body 3 is attached, it can accurately detect rotation errors without being affected by the heater 4.
  • the vibration sensor 9 is attached to the first substrate 8, no wiring for the vibration sensor 9 from outside the first substrate 8 is needed, and so all wiring work is easily performed.
  • the vibration sensor is provided in the rotating section, and the vibration level of the rotating shaft can be directly detected.
  • rotation errors in the rotating shaft of the yarn-processing roller can be promptly and accurately detected so that the yarn-processing roller can be promptly repaired, as by replacing the bearing.
  • the rotating shaft of the drive motor is positioned in such a way as to penetrate the drive motor; in other words, the rotating shaft extends to the position opposed to the roller body via the drive motor without the use of a rotation transmission means such as a coupling.
  • the vibration sensor can accurately detect vibrations at the position opposed to the roller body via the drive motor.
  • the vibration sensor is attached to the substrate on the rotation section side that constitutes the noncontact signal transmission means, thereby eliminating the need to provide wiring to obtain detection signals from outside the substrate.
  • the protective cover can prevent foreign matter from accumulating on the substrate on the rotation section side and the vibration sensor provided on this substrate.
  • the temperature sensor that rotates with the roller body to control the sensor is provided inside the circumferential wall of the roller body, the surface temperature of the roller body can be accurately detected and maintained.
  • the vibration sensor is opposed to the roller body via the drive motor, the vibration sensor is prevented from being affected by the heater and can detect rotation errors accurately.
  • detection signals from the vibration and temperature sensors can be transmitted from the rotating section to the locking section using a simple configuration.
  • the cotton central processing unit can process detection signals front the vibration and temperature sensors, thereby simplifying the configuration.
  • an alarm signal is issued to inform an operator of the error, thereby enabling corrective measures to be taken promptly.
  • the drive motor is then stopped immediately so as to prevent the roller from incurring serious damage and minimize the amount of unacceptable yarn produced on account of vibrations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP99118546A 1998-10-06 1999-09-20 Rouleau pour le traitement de fils Withdrawn EP0992620A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28382698 1998-10-06
JP28382698A JP3701799B2 (ja) 1998-10-06 1998-10-06 糸条処理ローラ

Publications (1)

Publication Number Publication Date
EP0992620A1 true EP0992620A1 (fr) 2000-04-12

Family

ID=17670665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118546A Withdrawn EP0992620A1 (fr) 1998-10-06 1999-09-20 Rouleau pour le traitement de fils

Country Status (2)

Country Link
EP (1) EP0992620A1 (fr)
JP (1) JP3701799B2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2316197A1 (es) * 2003-09-23 2009-04-01 Melchor Daumal Castellon Procedimiento de verificacion de carretes para elevacristales, techos solares y puertas correderas.
DE102015101972A1 (de) * 2015-02-11 2016-08-11 Wittenstein Ag Verfahren und Vorrichtung zur Überwachung einer Einrichtung eines Antriebs
DE102015004845A1 (de) 2015-04-16 2016-10-20 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Überwachung einer Galette oder Führungsrolle
CN116427074A (zh) * 2023-04-24 2023-07-14 吴江广宇纺织有限公司 一种加弹机及控制系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004108401A (ja) * 2002-09-13 2004-04-08 Nsk Ltd 検出器及びセンサ付転動装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745770A1 (de) * 1977-10-12 1979-04-26 Bbc Brown Boveri & Cie Verfahren zum beruehrungslosen uebertragen von signalen
DE2937656A1 (de) * 1979-09-18 1981-04-02 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Messwertuebertragungssystem fuer rotierende koerper
US4761101A (en) * 1986-01-10 1988-08-02 Otto Zettl Arrangement for wireless signal transmission from a rotating body to a stationary receiving station
FR2680243A1 (fr) * 1991-08-06 1993-02-12 Bertin & Cie Dispositif de telemesure pour organe rotatif de machine.
EP0770719A1 (fr) * 1995-10-13 1997-05-02 D.I.E.N.E.S. Apparatebau Gmbh Cylindre chauffé à grande vitesse
US5663504A (en) * 1993-09-16 1997-09-02 Kluft; Werner Sensor system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745770A1 (de) * 1977-10-12 1979-04-26 Bbc Brown Boveri & Cie Verfahren zum beruehrungslosen uebertragen von signalen
DE2937656A1 (de) * 1979-09-18 1981-04-02 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Messwertuebertragungssystem fuer rotierende koerper
US4761101A (en) * 1986-01-10 1988-08-02 Otto Zettl Arrangement for wireless signal transmission from a rotating body to a stationary receiving station
FR2680243A1 (fr) * 1991-08-06 1993-02-12 Bertin & Cie Dispositif de telemesure pour organe rotatif de machine.
US5663504A (en) * 1993-09-16 1997-09-02 Kluft; Werner Sensor system
EP0770719A1 (fr) * 1995-10-13 1997-05-02 D.I.E.N.E.S. Apparatebau Gmbh Cylindre chauffé à grande vitesse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2316197A1 (es) * 2003-09-23 2009-04-01 Melchor Daumal Castellon Procedimiento de verificacion de carretes para elevacristales, techos solares y puertas correderas.
DE102015101972A1 (de) * 2015-02-11 2016-08-11 Wittenstein Ag Verfahren und Vorrichtung zur Überwachung einer Einrichtung eines Antriebs
EP3056889A1 (fr) * 2015-02-11 2016-08-17 Wittenstein AG Procede et dispositif de surveillance d'un dispositif d'entrainement
DE102015004845A1 (de) 2015-04-16 2016-10-20 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Überwachung einer Galette oder Führungsrolle
CN116427074A (zh) * 2023-04-24 2023-07-14 吴江广宇纺织有限公司 一种加弹机及控制系统
CN116427074B (zh) * 2023-04-24 2023-12-15 吴江广宇纺织有限公司 一种加弹机及控制系统

Also Published As

Publication number Publication date
JP3701799B2 (ja) 2005-10-05
JP2000118864A (ja) 2000-04-25

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