GB1161882A - Apparatus for Yarn Treatment. - Google Patents

Apparatus for Yarn Treatment.

Info

Publication number
GB1161882A
GB1161882A GB1332166A GB1332166A GB1161882A GB 1161882 A GB1161882 A GB 1161882A GB 1332166 A GB1332166 A GB 1332166A GB 1332166 A GB1332166 A GB 1332166A GB 1161882 A GB1161882 A GB 1161882A
Authority
GB
United Kingdom
Prior art keywords
variable speed
drives
godet
motor
spindle
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
GB1332166A
Inventor
Ian Ernest Climie
Max William Betts
Paul Wellington White
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Publication of GB1161882A publication Critical patent/GB1161882A/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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/28—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association
    • D01H1/30—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association with two or more speeds; with variable-speed arrangements
    • D01H1/305—Speed control of the spindles in response to the displacements of the ring rail

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1,161,882. Draw-twister. COURTAULDS Ltd. 2 Dec., 1966 [24 Nov., 1965; 25 March, 1966], Nos. 49923/65 and 13321/66. Heading D1D. In a draw twister the godet and the spindle are driven by the same motor, the drive to the spindle being through a variable speed device whereby the relative speed of spindle and godet may be changed. As shown a motor 1 drives the input shaft of a gearbox 5 via a variable speed device 3. A first output shaft 6 drives the godet, a second output shaft 7 drives a differential 8 the output shaft 9 of which drives the spindles and a third output shaft 10 drives, via a variable speed gear 11 a second input 12 to differential 8. Variable speed gear 11 is altered by a motor 13 controlled by a programme unit 15 e.g. a cam. During acceleration of godets and spindles the arrangement is such that the godet and spindles have the same surface speed. As the yarn package grows the variable speed gear 11 is altered to lower the spindle speed and ensure that the thread tension is left constant. When the packages are full the spnidles and godets are decelerated together so as to stop at the same time. Gear 11 may be replaced by an induction coupling transmitting drive from a constantly rotating shaft and controlled e.g. by a potential from a potentiometer controlled by a cam. In Fig. 1 of the drawings accompanying application number 13321/66 (not shown) output shafts (4, 11) of a gearbox (3) drive via variable speed devices (5, 12) the godets and spindles respectively. A tachometer (7), on the godet drive shaft gives a signal representing the shaft speed and this is compared in a control unit (9) with a datum signal and the variable speed device (5) adjusted as a result of the comparison. During the starting up and slowing down periods the datum signal in unit (9) is varied (e.g. by a wiper being moved across a potentiometer coil by means of a cam) to cause controlled acceleration and deceleration. During the package build a tachometer (14) on the spindle drive shaft feeds a signal to a control unit (15) to be compared with a datum signal which is derived from the tachometer (7) and modified e.g. by a cam-operated potentiometer. In a further form the rates of acceleration and deceleration of the primary driving motor itself are controlled by the load on the motor being varied to give the required acceleration. The load comprises a flywheel which the motor drives through a variable speed gear which is adjustable to provide the required adjustable load.
GB1332166A 1965-11-24 1965-11-24 Apparatus for Yarn Treatment. Expired GB1161882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4992365 1965-11-24

Publications (1)

Publication Number Publication Date
GB1161882A true GB1161882A (en) 1969-08-20

Family

ID=10454016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1332166A Expired GB1161882A (en) 1965-11-24 1965-11-24 Apparatus for Yarn Treatment.

Country Status (1)

Country Link
GB (1) GB1161882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037139A1 (en) * 1969-02-28 1970-12-31 Owens Corning Fiberglass Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037139A1 (en) * 1969-02-28 1970-12-31 Owens Corning Fiberglass Corp

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Legal Events

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