GB1135752A - Improvements in or relating to textile drafting systems - Google Patents

Improvements in or relating to textile drafting systems

Info

Publication number
GB1135752A
GB1135752A GB30820/65A GB3082065A GB1135752A GB 1135752 A GB1135752 A GB 1135752A GB 30820/65 A GB30820/65 A GB 30820/65A GB 3082065 A GB3082065 A GB 3082065A GB 1135752 A GB1135752 A GB 1135752A
Authority
GB
United Kingdom
Prior art keywords
rollers
measuring
draft
drafting
sliver
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
GB30820/65A
Inventor
Robert Greenwood
Walter Haworth
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.)
TMM Research Ltd
Original Assignee
TMM Research 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 TMM Research Ltd filed Critical TMM Research Ltd
Publication of GB1135752A publication Critical patent/GB1135752A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

1,135,752. Drafting - appartus; measuring sliver. T.M.M. (RESEARCH) Ltd. 4 July, 1966 [20 July, 1965], No. 30820/65. Headings DID and D1F [Also in Division G3] To reduce variations from standard in the mass per unit length in drafted material, drafting apparatus comprises means for measuring the mass per unit length of material being fed to a main drafting system, and control means responsive to deviations so measured to vary the draft in a control drafting system which acts on the material before it reaches the measuring station. Slivers are fed from cans 13 by driven feed-rollers over a table 14 and travel in turn around guides 15, through a control drafting system 16, through a converging guide 19, measuring rollers 21, 22, below and above spreading- guides 23 respectively to be delivered by rollers 26 to a main drafting system. The measuring- rollers comprise a vertically-displaceable disc 21 cooperating with a fixed grooved roller 22 driven at constant speed. The displaceable roller is coupled to a transducer which generates a signal related in phase-angle to the direction in which the disc is displaced. The signal from the transducer is amplified at 28 and fed to a servo-motor 29 supplying a variable input at 31 to a speed-changer 32. This also receives a constant speed input at 33 from the delivery rollers 26 and the variable output from it is delivered at 38 to the front rollers 17 of the control system 16 of which the back rollers are driven at constant speed from the rollers 26. The draft produced at 16 is normally between 1 and 2; when sliver of reduced diameter appears at the measuring-station, the disc 22 falls so that the phase angle of the transducer signal is zero, and the front rollers 17 are speeded to reduce the draft at 16. When the disc rises, the phase angle changes through 180‹ to slow the rollers 17 correspondingly and to increase the draft. The device will also compensate for the absence of a sliver or the presence of an additional sliver during piecing. Instead of a servo-motor clutches may be employed as in Specification 941405 to vary the draft of the control drafting-system.
GB30820/65A 1966-11-03 1965-07-20 Improvements in or relating to textile drafting systems Expired GB1135752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59190066A 1966-11-03 1966-11-03

Publications (1)

Publication Number Publication Date
GB1135752A true GB1135752A (en) 1968-12-04

Family

ID=24368421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30820/65A Expired GB1135752A (en) 1966-11-03 1965-07-20 Improvements in or relating to textile drafting systems

Country Status (4)

Country Link
US (1) US3440690A (en)
CH (1) CH465454A (en)
DE (1) DE1510450B2 (en)
GB (1) GB1135752A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354653A2 (en) * 1988-08-09 1990-02-14 John D. Hollingsworth On Wheels Inc. Drafting apparatus with autolevelling
GB2261884A (en) * 1991-11-26 1993-06-02 Hollingsworth Method and apparatus for forming sliver
US5274883A (en) * 1991-11-26 1994-01-04 Hollingsworth (U.K.) Limited Carding apparatus with drafting and autolever device
GB2277106A (en) * 1993-04-02 1994-10-19 Truetzschler Gmbh & Co Kg Sliver guide for guiding fibre slivers at the inlet of a drawing system and measuring the thickness thereof
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
DE2642118C2 (en) * 1975-09-23 1983-08-04 Joseph Marie Julien Embourg Liège Sauvage Drafting system for natural and / or synthetic fibers
DE3425345A1 (en) * 1984-07-10 1986-01-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach METHOD AND DEVICE FOR PRODUCING A UNIFORM, CONTINUOUS QUANTITY OF FIBERS
DE3810575A1 (en) * 1988-03-29 1989-10-12 Zinser Textilmaschinen Gmbh Device for measuring the thickness of a drawing slither
DE4136209C1 (en) * 1991-11-02 1993-06-09 Rieter Ingolstadt Spinnereimaschinenbau Ag, 8070 Ingolstadt, De
DE102013103177A1 (en) * 2013-03-28 2014-10-02 Rieter Ingolstadt Gmbh Drive arrangement of a spinning preparation machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US802492A (en) * 1904-07-15 1905-10-24 Sydney Birch Drawing and evening machine.
BE432792A (en) * 1938-02-17
US2608725A (en) * 1950-10-06 1952-09-02 Dominion Textile Co Ltd Sliver piecing device
FR68315E (en) * 1955-10-19 1958-04-29 Hewittic Method for regularizing the average section of threads, rovings, ribbons, etc., and device for carrying out this method
US2981986A (en) * 1955-12-27 1961-05-02 Special Instr Lab Inc Control apparatus and methods
GB866491A (en) * 1956-07-18 1961-04-26 Stanley Whitaker Jackson Improvements relating to the treatment of textile fibres
FR1277251A (en) * 1960-01-25 1961-11-24 Rieter Joh Jacob & Cie Ag Fiber ribbon feeding table for spinning preparation machines
GB930873A (en) * 1961-05-02 1963-07-10 Tmm Research Ltd Improvements in methods of and means for processing textile fibrous material

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354653A2 (en) * 1988-08-09 1990-02-14 John D. Hollingsworth On Wheels Inc. Drafting apparatus with autolevelling
US5018248A (en) * 1988-08-09 1991-05-28 Hollingsworth (U.K.) Limited Drafting apparatus with autolevelling
EP0354653A3 (en) * 1988-08-09 1991-12-27 John D. Hollingsworth On Wheels Inc. Drafting apparatus with autolevelling
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
GB2261884A (en) * 1991-11-26 1993-06-02 Hollingsworth Method and apparatus for forming sliver
GB2261885A (en) * 1991-11-26 1993-06-02 Hollingsworth Improved carding apparatus and process
US5274883A (en) * 1991-11-26 1994-01-04 Hollingsworth (U.K.) Limited Carding apparatus with drafting and autolever device
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
US5461757A (en) * 1993-04-02 1995-10-31 Trutzschler Gmbh & Co. Kg Apparatus for measuring the sliver density at a tapering sliver guide in a drafting frame
GB2277106A (en) * 1993-04-02 1994-10-19 Truetzschler Gmbh & Co Kg Sliver guide for guiding fibre slivers at the inlet of a drawing system and measuring the thickness thereof
GB2277106B (en) * 1993-04-02 1997-08-27 Truetzschler Gmbh & Co Kg Sliver guide for guiding fibre slivers at the inlet of a drawing system and measuring the thickness thereof

Also Published As

Publication number Publication date
DE1510450A1 (en) 1969-02-13
DE1510450B2 (en) 1977-03-03
CH465454A (en) 1968-11-15
US3440690A (en) 1969-04-29

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