EP0572756A1 - Elektronische Vorrichtung zur Regelung von Garnverbindungen in einem kontinuierlichen Garnspinnverfahren - Google Patents

Elektronische Vorrichtung zur Regelung von Garnverbindungen in einem kontinuierlichen Garnspinnverfahren Download PDF

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Publication number
EP0572756A1
EP0572756A1 EP92830482A EP92830482A EP0572756A1 EP 0572756 A1 EP0572756 A1 EP 0572756A1 EP 92830482 A EP92830482 A EP 92830482A EP 92830482 A EP92830482 A EP 92830482A EP 0572756 A1 EP0572756 A1 EP 0572756A1
Authority
EP
European Patent Office
Prior art keywords
assembly
electronic apparatus
detecting
interlacings
yarn
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Withdrawn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
EP92830482A
Other languages
English (en)
French (fr)
Inventor
Paolo Piana
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.)
LOMBARDIA FILATI Srl
Original Assignee
LOMBARDIA FILATI Srl
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 LOMBARDIA FILATI Srl filed Critical LOMBARDIA FILATI Srl
Publication of EP0572756A1 publication Critical patent/EP0572756A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • 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 present invention relates to an electronic apparatus for controlling the interlacing of yarns in a continuous yarn spinning process.
  • this interlacing operation is performed in order to bind or tie to one another the yarn forming filaments and is performed by blowing pressurized air onto the yarn, with a preset flow-rate, so as to improve the processing characteristics of the working yarns, and so as to increase the strength thereof.
  • this type of process is controlled by a valve, which is in turn adjusted by an electronic type of transducer and locating device, adapted to provide a preset pressure, usually of 0.1 bar, which has been found to provide the better results.
  • the aim of the present invention is to solve the above mentioned problems by providing an electronic apparatus for controlling the interlacings of yarn, in a continuous yarn spinning process, which allows to precisely monitor the evenness of the knot distribution through the yarn, while allowing an operator to eliminate easily possible deviations of the knot number from a preset value thereof.
  • a main object of the present invention is to provide such an electronic apparatus allowing to easily and quickly preset a given number of knots to be formed on a metre of yarn, so as to obtain a knotted yarn having the required characteristics.
  • Another object of the present invention is to provide such an electronic apparatus which is very reliable and safe in operation and which, moreover, can be easily made starting from easily available elements and materials and which, furthermore, is very advantageous from a mere economic standpoint.
  • an electronic apparatus for controlling the interlacings of yarns, in a continuous-yarn spinning process characterized in that said apparatus comprises a detecting assembly for detecting the interlacings on the yarns, said detecting assembly being operatively connected to a driving assembly for driving a cutter unit adapted to cut the yarn if said yarn has interlacings or knots which do not correspond to preset values.
  • the electronic apparatus for controlling the interlacings of yarns, in a continuous yarn spinning process comprises, for each yarn, a detecting assembly, generally indicated at the reference number 1, which comprises an optical sensor 2 adapted to emit a light beam, therethrough a yarn 3 is caused to pass, so as to control or monitor the interlacings or knots 4 formed on the yarn.
  • the optical sensor is integrated in an electronic apparatus, which comprises a central control unit 10, to which the process information are sent, said process information being managed by a signal conditioning system and being combined with other data in an assembly 11 provided for detecting the operating parameters of the machine.
  • These operating parameters will comprise the operating speed of the textile machine, the produced fabric metres, the starting speed and the stop procedure, as well as the actuated head number and other information.
  • the central unit 10 comprises a microprocessor adapted to program the optimum knot/metre rate and also operating as a data concentrating unit.
  • the central unit 10 is connected to an information storing assembly 12 which is designed for storing all of the information coming from the several head assemblies to supply these information to the central unit 10.
  • a signal conditioning assembly 13 provided for transmitting the data detected by the sensor and transform the knot signals into square waves, to be stored in the storing assembly 12.
  • a driving assembly 15 which transforms the electronic signals into electric signals, provided for actuating the electromagnets of a cutter unit 20 adapted to cut the yarn if a deviation occurs from the preset optimum parameters.
  • the yarn is always controlled and, most importantly, it is continuously monitored that the number of knots per metres precisely correspond to the preset values, in order to prevent the supply of a yarn which does not have the required characteristics.
  • the cutter unit 20 is automatically energized so as to cut the yarn and stop the textile machine.
  • an electronic apparatus which is adapted to control the textile machine elements which elements were not controlled in prior textile machines of this type, the apparatus of the invention providing for controlling the number of knots, or interlacings, per metre, the evenness and good quality of the produced yarn.
  • the used materials, as well as the contingent size and shape can be any depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP92830482A 1992-06-01 1992-09-15 Elektronische Vorrichtung zur Regelung von Garnverbindungen in einem kontinuierlichen Garnspinnverfahren Withdrawn EP0572756A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92MI001350A ITMI921350A1 (it) 1992-06-01 1992-06-01 Apparecchiatura elettronica per il controllo dell'interlacciatura dei fili nel processo di filatura per fili continui
ITMI921350 1992-06-01

Publications (1)

Publication Number Publication Date
EP0572756A1 true EP0572756A1 (de) 1993-12-08

Family

ID=11363434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830482A Withdrawn EP0572756A1 (de) 1992-06-01 1992-09-15 Elektronische Vorrichtung zur Regelung von Garnverbindungen in einem kontinuierlichen Garnspinnverfahren

Country Status (2)

Country Link
EP (1) EP0572756A1 (de)
IT (1) ITMI921350A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995026434A1 (de) * 1994-03-26 1995-10-05 Temco Textilmaschinenkomponenten Gmbh & Co. Kg Verfahren und vorrichtung zum prüfen von verwirbelten filamentgarnen
DE19535177A1 (de) * 1995-09-22 1997-03-27 Temco Textilmaschkomponent Verfahren und Vorrichtung zum Prüfen der Struktur, insbesondere Topografie, von Garnen insbesondere in einer Textilmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2152295A1 (de) * 1970-10-20 1972-04-27 Shimadzu Corp Elektronische Fadenueberwachungs- und Saeuberungsvorrichtung
GB2193978A (en) * 1986-07-17 1988-02-24 Brierley John L Ltd Yarn clearers
EP0419827A2 (de) * 1989-09-29 1991-04-03 Maschinenfabrik Rieter Ag Verfahren zur Reinigung von Garnfehlern sowie Garnreiniger zur Durchführung des Verfahrens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2152295A1 (de) * 1970-10-20 1972-04-27 Shimadzu Corp Elektronische Fadenueberwachungs- und Saeuberungsvorrichtung
GB2193978A (en) * 1986-07-17 1988-02-24 Brierley John L Ltd Yarn clearers
EP0419827A2 (de) * 1989-09-29 1991-04-03 Maschinenfabrik Rieter Ag Verfahren zur Reinigung von Garnfehlern sowie Garnreiniger zur Durchführung des Verfahrens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995026434A1 (de) * 1994-03-26 1995-10-05 Temco Textilmaschinenkomponenten Gmbh & Co. Kg Verfahren und vorrichtung zum prüfen von verwirbelten filamentgarnen
DE19535177A1 (de) * 1995-09-22 1997-03-27 Temco Textilmaschkomponent Verfahren und Vorrichtung zum Prüfen der Struktur, insbesondere Topografie, von Garnen insbesondere in einer Textilmaschine

Also Published As

Publication number Publication date
ITMI921350A1 (it) 1993-12-01
ITMI921350A0 (it) 1992-06-01

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