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GB1375487A - - Google Patents

Info

Publication number
GB1375487A
GB1375487A GB553672A GB553672A GB1375487A GB 1375487 A GB1375487 A GB 1375487A GB 553672 A GB553672 A GB 553672A GB 553672 A GB553672 A GB 553672A GB 1375487 A GB1375487 A GB 1375487A
Authority
GB
United Kingdom
Prior art keywords
draw
increase
circuit
tension
feed
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
GB553672A
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 filed Critical
Publication of GB1375487A publication Critical patent/GB1375487A/en
Expired legal-status Critical Current

Links

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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Winding Filamentary Materials (AREA)

Abstract

1375487 Separating and drawing multifilament TEIJIN Ltd 7 Feb 1972 [3 Aug 1971] 5536/72 Headings D1D D1J and D1N A textile machine comprises a feed roller 6 and draw roller 8 which are independently driven and which unwind multifilament from a package 2 and pass it to a guide 10 which separates it into monofilaments. The monofilaments are wound on bobbins 24 which are supported and driven at one end, towards which they are pressed from the other end. The drive of the feed and draw rollers may be controlled during start up by a feed back stystem which compares a speed dependent voltage with a programmed voltage. The program is arranged so that the product of the draw produced by the rollers DR 2 and the draw produced due to the inertia of the package 2, DR 1 does not exceed a predetermined maximum DR 0 , Fig. 5. A circuit is described which gives an initial steady rate of increase of DR 2 in time o-t 1 after which the speed ratio and hence draw is constant while the speeds increase in time t 1 -t 0 . An additional circuit may be provided to also control the bobbin windup speed of motors 26 by amplifying a tension deviation signal produced by tension sensors 9 which are angularly displaced by a tension increase. The gain of the amplification in this circuit is increased with an increase of the voltage signals generated by the above mentioned program circuit. The means of pressing the bobbin ends, Fig. 3, comprises springs 35 which allow light gripping of the bobbins and electromagnetic or fluid operated cylinders 36 which increase the grip during winding. For Figures see next page
GB553672A 1971-08-03 1972-02-07 Expired GB1375487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46058466A JPS50972B1 (en) 1971-08-03 1971-08-03

Publications (1)

Publication Number Publication Date
GB1375487A true GB1375487A (en) 1974-11-27

Family

ID=13085193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB553672A Expired GB1375487A (en) 1971-08-03 1972-02-07

Country Status (5)

Country Link
US (1) US3855676A (en)
JP (1) JPS50972B1 (en)
DE (1) DE2206577A1 (en)
GB (1) GB1375487A (en)
IT (1) IT948552B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007387A1 (en) * 1980-02-27 1981-09-10 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Split yarn winder - has spindle group with drive controlled by yarn tension
DE3609553C2 (en) * 1986-03-21 1994-11-03 Zinser Textilmaschinen Gmbh Method for controlling the start-up of a stretching machine for synthetic threads
DE4233637C1 (en) * 1992-10-06 1994-06-01 Zinser Textilmaschinen Gmbh Method and device for processing at least two synthetic threads running at a distance next to one another in a textile machine
US5870808A (en) * 1997-10-24 1999-02-16 E. I. Du Pont De Nemours And Company Draw point control arrangement
CN105236216A (en) * 2015-11-04 2016-01-13 江苏中科时代电气制造股份有限公司 Pneumatic accurate-control tensioner
CN110804783B (en) * 2019-10-18 2020-12-01 桐乡越顺经编有限公司 A draft forming mechanism for weaving yarn processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092811A (en) * 1933-03-10 1937-09-14 Celanese Corp Treatment of yarns
US2568960A (en) * 1948-11-12 1951-09-25 Drummondville Cotton Company L Winder
US2990603A (en) * 1958-04-23 1961-07-04 Leesona Corp Apparatus for draw-stretching and winding yarn
CH413681A (en) * 1964-07-21 1966-05-15 Schweiter Ag Maschf Precision package winder
US3623311A (en) * 1969-11-03 1971-11-30 Turbo Machine Co Apparatus for producing synthetic torque yarns
NL7000713A (en) * 1969-12-04 1971-06-08

Also Published As

Publication number Publication date
JPS50972B1 (en) 1975-01-14
US3855676A (en) 1974-12-24
IT948552B (en) 1973-06-11
DE2206577A1 (en) 1973-08-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees