GB1307702A - Method of evaluating irregularities of advancing textile materials such as laps rovings or yarns and apparatus for carrying out same - Google Patents

Method of evaluating irregularities of advancing textile materials such as laps rovings or yarns and apparatus for carrying out same

Info

Publication number
GB1307702A
GB1307702A GB1033070A GB1033070A GB1307702A GB 1307702 A GB1307702 A GB 1307702A GB 1033070 A GB1033070 A GB 1033070A GB 1033070 A GB1033070 A GB 1033070A GB 1307702 A GB1307702 A GB 1307702A
Authority
GB
United Kingdom
Prior art keywords
filter
signal
utilized
laps
yarns
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
Application number
GB1033070A
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.)
STANI VYZKUMNY USTAV TEXTILNI
Original Assignee
STANI VYZKUMNY USTAV TEXTILNI
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 STANI VYZKUMNY USTAV TEXTILNI filed Critical STANI VYZKUMNY USTAV TEXTILNI
Publication of GB1307702A publication Critical patent/GB1307702A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/365—Filiform textiles, e.g. yarns
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/228—Circuits therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Quality & Reliability (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

1307702 Measuring permeter of a movement material electrically STATNI VYZKUMNY USTAV TEXTILNI 4 June 1970 [6 March 1969 (2)] 10330/70 Heading G1N Irregularities in a parameter, e.g. weight or volume, of an advancing material, e.g. laps or yarns are detected by a transducer 1 whose output is proportional to the deviations of a notional mean value set by a potentiometer 6 this signal being passed through one of a number of filters 3, 4, 5, 20 amplified at 7, optionally corrected for sign and/or squared at 10, and integrated at 13 over a predetermined time, the signal prior to integration having been attenuated relative to the time of integration and to a limitation factor of the integrator by a voltage divider 12 so that the display on a meter 16 is representative of the desired output. A number of different measurements are made possible by the choice of the filter 3, 4, 5, or 20. For measuring mean deviation circuit 4, i.e. a straight connection is selected. The attenuated signal is integrated over a time determined by a relay 15 and the output is passed to meter 16 via switch 17. To measure the deviation of the next section of material the last value is utilized being fed to the amplifier 7 via switch 18 together with an adjusting voltage from potentiometer 8 so that for this section measurements are made relative to the mean value found in the preceding section. Filter 3 is a high pass filter, eliminating low frequency components from the input signal. Filter 5 is a low pass filter which is used when long sections of the yarn are being evaluated, this filter having the effect of notionally cutting the yarn into short sections, the mean values of these sections being utilized. Filter 20 is a band pass filter such as to eliminate high and low frequency components from the signal utilized.
GB1033070A 1969-03-06 1970-03-04 Method of evaluating irregularities of advancing textile materials such as laps rovings or yarns and apparatus for carrying out same Expired GB1307702A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS163069 1969-03-06
CS163169 1969-03-06

Publications (1)

Publication Number Publication Date
GB1307702A true GB1307702A (en) 1973-02-21

Family

ID=25745480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1033070A Expired GB1307702A (en) 1969-03-06 1970-03-04 Method of evaluating irregularities of advancing textile materials such as laps rovings or yarns and apparatus for carrying out same

Country Status (5)

Country Link
CH (1) CH520936A (en)
DE (1) DE2010311C3 (en)
FR (1) FR2037756A5 (en)
GB (1) GB1307702A (en)
HU (1) HU166920B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7832190B2 (en) 2005-11-18 2010-11-16 Uster Technologies Ag Characterization of fancy yarn
CN102304789A (en) * 2011-08-01 2012-01-04 华中科技大学 Electronic differential gear for auto-leveling control of full servo drawing frame

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404136C3 (en) * 1973-02-05 1984-06-28 Gebrüder Loepfe AG, Wetzikon Device for setting the cleaning limits of an electronic thread cleaner
CH590173A5 (en) * 1975-10-02 1977-07-29 Zellweger Uster Ag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7832190B2 (en) 2005-11-18 2010-11-16 Uster Technologies Ag Characterization of fancy yarn
CN102304789A (en) * 2011-08-01 2012-01-04 华中科技大学 Electronic differential gear for auto-leveling control of full servo drawing frame

Also Published As

Publication number Publication date
DE2010311A1 (en) 1970-09-24
DE2010311C3 (en) 1974-12-12
DE2010311B2 (en) 1974-04-18
FR2037756A5 (en) 1970-12-31
HU166920B (en) 1975-06-28
CH520936A (en) 1972-03-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees