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GB1443258A - Rendering elongate fibrous material substantially uniform in thickness - Google Patents

Rendering elongate fibrous material substantially uniform in thickness

Info

Publication number
GB1443258A
GB1443258A GB2704074A GB2704074A GB1443258A GB 1443258 A GB1443258 A GB 1443258A GB 2704074 A GB2704074 A GB 2704074A GB 2704074 A GB2704074 A GB 2704074A GB 1443258 A GB1443258 A GB 1443258A
Authority
GB
United Kingdom
Prior art keywords
signal
speed
thickness
fibrous material
speed signal
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
GB2704074A
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.)
Siemens Corp
Original Assignee
Siemens 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
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1443258A publication Critical patent/GB1443258A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
    • G01B7/125—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters of objects while moving

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

1443258 Rendering fibrous material uniform in thickness SIEMENS AG 18 June 1974 [19 June 1973] 27040/74 Heading DIN In. a fibre drawing apparatus the thickness of the fibrous material is measured at 3 and a signal proportional to the thickness is stored in an electrical storage means 15, this signal being released after the time required for the measured portion to enter the drafting zone and being used to determine the speed of one of the drafting elements to hence compensate for irregularities in the material thickness. The speed of the other drafting element being determined by comparison of an actual speed signal with a variable desired speed signal. The time after which the signal is released is determined according to the speed of travel of the fibrous material. The electrical storage means may be a capacitor type store or a shift register. As shown the motor 7 is controlled by a difference signal generated at 11 between a desired speed signal Vgr and a tachogenerator actual speed signal. The actual speed signal is also tapped to influence, by means of a signal Vs, the speed of motor 9. This speed is also controlled by an actual speed signal Vi and is modified by a signal Vk from the electrical storage means 15. The time lapse is determined by a signal tapped from the desired speed signal Vgr.
GB2704074A 1973-06-19 1974-06-18 Rendering elongate fibrous material substantially uniform in thickness Expired GB1443258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732331217 DE2331217A1 (en) 1973-06-19 1973-06-19 DEVICE FOR COMPARISON OF THE THICKNESS OF TAPE OR STRANDED MATERIAL IN TEXTILE PREPARATION

Publications (1)

Publication Number Publication Date
GB1443258A true GB1443258A (en) 1976-07-21

Family

ID=5884464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2704074A Expired GB1443258A (en) 1973-06-19 1974-06-18 Rendering elongate fibrous material substantially uniform in thickness

Country Status (5)

Country Link
JP (1) JPS5035442A (en)
DE (1) DE2331217A1 (en)
FR (1) FR2234396B1 (en)
GB (1) GB1443258A (en)
IT (1) IT1015129B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137487A (en) * 1975-10-02 1979-01-30 Schubert & Salzer Method and device for automatically leveling fleeces, slivers, rovings and the like by drawing
US4473924A (en) * 1979-10-13 1984-10-02 Zinser Textilmaschinen Gmbh Means for controlling fiber-drawing apparatus
US4574433A (en) * 1983-04-19 1986-03-11 Haigh Chadwick Limited Fibre metering arrangement
US5452626A (en) * 1993-03-12 1995-09-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame
US5463556A (en) * 1992-06-17 1995-10-31 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for control of an autoleveling draw frame
US5583781A (en) * 1991-06-04 1996-12-10 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device to correct the regulation onset point and the intensity of regulation
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858691B2 (en) * 1975-06-17 1983-12-27 三菱電機株式会社 Idoutai no Atsusaseigiyosouchi
JPS5319206A (en) * 1976-08-04 1978-02-22 Kingupurinteingu Kk Inverted plate printing method
DE2650287C2 (en) * 1976-11-02 1984-11-29 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Drafting device for slivers
FR2466526A1 (en) * 1979-09-27 1981-04-10 Alsacienne Constr Meca INSTALLATION FOR REGULATING THE SECTION OF THE FIBER MECHANISM EXCEEDING A STRETCH MACHINE
DE3034778C2 (en) * 1980-09-15 1986-04-17 Leningradskij naučno-issledovatel'skij institut tekstil'noj promyšlennosti, Leningrad Device for automatic regulation of the linear density of carding tape

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866491A (en) * 1956-07-18 1961-04-26 Stanley Whitaker Jackson Improvements relating to the treatment of textile fibres
US3268955A (en) * 1964-02-07 1966-08-30 Burlington Industries Inc Drafting apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137487A (en) * 1975-10-02 1979-01-30 Schubert & Salzer Method and device for automatically leveling fleeces, slivers, rovings and the like by drawing
US4473924A (en) * 1979-10-13 1984-10-02 Zinser Textilmaschinen Gmbh Means for controlling fiber-drawing apparatus
US4512061A (en) * 1979-10-13 1985-04-23 Zinser Textilmaschinen Gmbh Method of controlling fiber-drawing apparatus
US4574433A (en) * 1983-04-19 1986-03-11 Haigh Chadwick Limited Fibre metering arrangement
US5583781A (en) * 1991-06-04 1996-12-10 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device to correct the regulation onset point and the intensity of regulation
US5463556A (en) * 1992-06-17 1995-10-31 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for control of an autoleveling draw frame
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame
US5452626A (en) * 1993-03-12 1995-09-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame

Also Published As

Publication number Publication date
FR2234396B1 (en) 1978-01-13
DE2331217A1 (en) 1975-01-16
IT1015129B (en) 1977-05-10
JPS5035442A (en) 1975-04-04
FR2234396A1 (en) 1975-01-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee