EP0389117A2 - Métiers à filer à anneaux, doubleuses à anneaux et métiers à retordre à anneaux - Google Patents

Métiers à filer à anneaux, doubleuses à anneaux et métiers à retordre à anneaux Download PDF

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Publication number
EP0389117A2
EP0389117A2 EP90302056A EP90302056A EP0389117A2 EP 0389117 A2 EP0389117 A2 EP 0389117A2 EP 90302056 A EP90302056 A EP 90302056A EP 90302056 A EP90302056 A EP 90302056A EP 0389117 A2 EP0389117 A2 EP 0389117A2
Authority
EP
European Patent Office
Prior art keywords
ring
winding
spindle
control system
yarn
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.)
Withdrawn
Application number
EP90302056A
Other languages
German (de)
English (en)
Other versions
EP0389117A3 (fr
Inventor
Stephen William Yates
Alfred Wood
Reginald Henry Eastham
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.)
Hollingsworth UK Ltd
Original Assignee
Hollingsworth UK 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 Hollingsworth UK Ltd filed Critical Hollingsworth UK Ltd
Publication of EP0389117A2 publication Critical patent/EP0389117A2/fr
Publication of EP0389117A3 publication Critical patent/EP0389117A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D01H1/32—Driving or stopping arrangements for complete machines
    • D01H1/34—Driving or stopping arrangements for complete machines with two or more speeds; with variable-speed arrangements, e.g. variation of machine speed according to growing bobbin diameter
    • 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
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/244—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles each spindle driven by an electric motor

Definitions

  • the present invention relates to the drive for a spindle of a textile machine of the ring frame type and especially to such a machine having a variable speed motor drive for winding a yarn strand onto a package former in the form of a cop.
  • the machine may be a ring spinner or a ring twister or a ring doubler, but in the present application the generic term "ring frame" will be used to denote this type of apparatus.
  • the speed of the single prime moving motor arrangement applied to the ring frame has been variable to achieve variable speed winding conditions in that the said motor contains mechanical controls for the speed of the spindle during the cyclic build of the chase and the build of one complete set of cops.
  • the present invention aims to provide means for controlling the variable speed motor drive to such an apparatus accurately by means of a switched reluctance drive motor.
  • the apparatus of the present invention is characterised by the features of claim 1.
  • a switched reluctance drive motor of the type disclosed in GB-A-1597486 can be controlled to operate in the required manner, and to provide a much more efficient control during operation.
  • the method of the present invention is characterised by the features of claim 4.
  • a spindle 10 is connected to the motor shaft 14 of a switched reluctance drive motor 18, for example of the type in GB-A-1597486.
  • the spindle is also fixedly attached to an annular member 12 carrying a yarn cutter 13.
  • Control of the switched reluctance drive motor 18 is provided by means of a global control system 50.
  • a strand, in this case yarn 22, is delivered in the form of a balloon to a package former 20, through a pair of delivery rollers 25 and via a lappet 24 and a traveller 28 which is able to rotate on a ring 30 itself carried on a horizontal ring rail 32.
  • the vertical movement of the ring rail 32 carrying the ring 30, as shown by the double headed arrows 26, is detected by a schematically illustrated sensor 51 which is linked to, or is part of, the global control system 50.
  • the spindle 10 is set to rotate at a speed dictated by the global control system 50 in order to produce a cop build of yarn onto the package former 20.
  • Yarn 22 is delivered through the traveller 28 and on to the package former 20.
  • the winding operation is controlled by the global control system 50 which controls the sequence of speed variation of delivery rollers 25 (by means of the control unit 52), the movement of the ring rail 32 (by means of the sensor 51), and also the rotation of the spindle through the switched reluctance drive motor 18 by means of the motor's own control unit 16.
  • the build up of a package on the package former 20 is carried out with varying speed of the spindle supporting it, to ensure that an even tension is always applied to the yarn.
  • Control of the speed variations is carried out by the global control system 50.
  • Use of a switched reluctance drive motor in connection with such a control system allows accurate control of the speed of the spindle to be ensured at all times. Furthermore, since use of the switched reluctance drive motor enables stable rotation of the spindle at higher speeds it is possible, with such a global control system, to carry out the whole winding operation to create the cop in a shorter time than is possible with conventional machines.
  • Control from the global control system 50 can be either by a preset control pattern, or by, the global control system 50 being operated on a more active basis, that is by measuring the tension in the yarn at all times and adjusting the speed of the motor 18 accordingly.
  • the global control system 50 will also control the operation of the motor 18 by way of the local control unit 16 during the piecing and doffing operations.
  • the local control unit 16 will stop the spindle from rotating and will instruct a required torque for that particular motor. This will be a rotation-resisting torque at a level adapted to assist in the piecing operation.
  • Piecing can be carried out either manually (when the operator will use a switch to indicate to the local control unit 16 that it should start the package former 20 rotating again and to control this start-up in dependence upon the particular point in the cop build so as to resynchronize the spindle position with all the others of the machine), or automatically by means of a robot. In the case of automatic piecing, the piecing robot will find the spindle position requiring to be pieced and, with the aid of the local control unit 16, will execute a piecing cycle.
  • the global control system 50 will send the appropriate control instructions to the local control units 16 to execute a shut-down sequence, and the control units 52 will stop delivery. This will be prompted by a signal from at least one of the sensors 51 of the ring frame that the cop has reached its measured length. Any suitable combination of the signals from the sensors 51 in the machine may be used to prompt the global control system 50 to terminate the winding operation ready for doffing.
  • the global control system 50 instructs lowering of the ring rail 32 and, in this case, transfer of the yarn strand from the package former to the annular member 12 for storing, and for severing by the blade 13, in a known manner.
  • the local control unit 16 applies a low rotation-resisting torque to be maintained until the instant of doffing.
  • the global control system 50 will send a torque-selecting signal at a higher level to the local control units 16 of these motors to select the required rotation-resisting torque for each motor required when the packages are lifted to sever the yarn.
  • the rotation-resisting torque for the actual doffing operation will be substantially higher than the said low rotation-resisting torque which would suffice for the manual piecing operation, the latter being set to enable the operator to unwind a length of yarn from the package former with ease.
  • the ring rail lifting function may be carried out by a respective electric motor controlled by an electronic programmable logic controller (PLC) in accordance with a programme which resembles the conventional mode of ring rail lift but allows more accurate control of the build.
  • PLC electronic programmable logic controller

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19900302056 1989-03-23 1990-02-27 Métiers à filer à anneaux, doubleuses à anneaux et métiers à retordre à anneaux Withdrawn EP0389117A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8906714 1989-03-23
GB8906714A GB2229458A (en) 1989-03-23 1989-03-23 Ring spinning,ring doubling and ring twisting frames

Publications (2)

Publication Number Publication Date
EP0389117A2 true EP0389117A2 (fr) 1990-09-26
EP0389117A3 EP0389117A3 (fr) 1991-04-24

Family

ID=10653898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900302056 Withdrawn EP0389117A3 (fr) 1989-03-23 1990-02-27 Métiers à filer à anneaux, doubleuses à anneaux et métiers à retordre à anneaux

Country Status (3)

Country Link
EP (1) EP0389117A3 (fr)
JP (1) JPH02269813A (fr)
GB (1) GB2229458A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005310A1 (fr) * 1995-07-26 1997-02-13 Reel S.R.L. Tete de torsion de fils motorisee

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168202A (en) * 1991-08-30 1992-12-01 Platt Saco Lowell Corporation Microprocessor control of electric motors
US5202610A (en) * 1991-08-30 1993-04-13 Platt Saco Lowell Method and apparatus for yarn end-down detection in a textile yarn winding machine
ES2187227B1 (es) * 1999-12-27 2004-10-16 Galan Textile Machinery, S.L. Maquina de hilar retorcedera-reunidora de anillos, de modulos unitarios de produccion autonomos e independientes.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044302A (en) * 1979-03-23 1980-10-15 Zinser Textilmaschinen Gmbh Ring spinning or ring twisting machines
FR2542767A1 (fr) * 1983-03-18 1984-09-21 Zinser Textilmaschinen Gmbh Machine de filature pour le bobinage de fils
DE3717749A1 (de) * 1987-05-26 1988-12-15 Zubler Geraetebau Verfahren zur aktiven fadenbruchverhinderung an spinn-, zwirn- und spulmaschinenantrieben sowie deren vollautomatisches ausregeln auf maximale produktionsdrehzahlen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044302A (en) * 1979-03-23 1980-10-15 Zinser Textilmaschinen Gmbh Ring spinning or ring twisting machines
FR2542767A1 (fr) * 1983-03-18 1984-09-21 Zinser Textilmaschinen Gmbh Machine de filature pour le bobinage de fils
DE3717749A1 (de) * 1987-05-26 1988-12-15 Zubler Geraetebau Verfahren zur aktiven fadenbruchverhinderung an spinn-, zwirn- und spulmaschinenantrieben sowie deren vollautomatisches ausregeln auf maximale produktionsdrehzahlen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENGINEERING, vol. 223, no. 4, April 1983, pages 271-273, London, GB; B. RAY: "Iron meets silicon in new motor" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005310A1 (fr) * 1995-07-26 1997-02-13 Reel S.R.L. Tete de torsion de fils motorisee

Also Published As

Publication number Publication date
GB2229458A (en) 1990-09-26
EP0389117A3 (fr) 1991-04-24
JPH02269813A (ja) 1990-11-05
GB8906714D0 (en) 1989-05-10

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