EP0476406B1 - Vorrichtung zum Spinnen eines echtgedrehten Garnes mittels einer Spindel und einer Glocke und Verfahren zum Spinnen mit einer solchen Vorrichtung - Google Patents

Vorrichtung zum Spinnen eines echtgedrehten Garnes mittels einer Spindel und einer Glocke und Verfahren zum Spinnen mit einer solchen Vorrichtung Download PDF

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Publication number
EP0476406B1
EP0476406B1 EP19910114722 EP91114722A EP0476406B1 EP 0476406 B1 EP0476406 B1 EP 0476406B1 EP 19910114722 EP19910114722 EP 19910114722 EP 91114722 A EP91114722 A EP 91114722A EP 0476406 B1 EP0476406 B1 EP 0476406B1
Authority
EP
European Patent Office
Prior art keywords
spindle
spinning
speed
bell
cap
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 - Lifetime
Application number
EP19910114722
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0476406A1 (de
Inventor
Rainer Busch
Jan Uhliarik
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0476406A1 publication Critical patent/EP0476406A1/de
Application granted granted Critical
Publication of EP0476406B1 publication Critical patent/EP0476406B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H1/06—Spinning or twisting machines in which the product is wound-up continuously cap type
    • 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 invention relates to a device for spinning a real twisted yarn by means of a spindle and a bell according to the preamble of claim 1.
  • An adjustable resistor and an adjustable coil can be switched on by means of a switching element, so that the torque characteristic of the individual motor of the bell can be changed slightly.
  • the drives are provided in order to be able to spin particularly fine and less tensile threads with the bell spinning device. Furthermore, when spinning yarns with sufficient tensile strength, it is provided with this device to brake the bell when the spinning ends so that the thread tension does not drop too much.
  • the device according to the invention has the great advantage that almost any point in the first quadrant of the coordinate system torque-speed can be reached. This applies to both the speed of the bell and the speed of the spindle. Almost any drive torque of these two speeds can thus be set. This possibility of almost any adjustability of the speeds, for example via the stator field in an asynchronous motor, allows the thread tension to be kept constant for a certain thread number within very narrow limits. By taking the stroke movement of the spindle into account, even the differences in thread tension caused by the different winding diameters of the cop can be largely compensated for. These advantages can be achieved with a suitable height measuring device and associated measuring transducer. Above all, those with a capacitive or inductive sensor have proven themselves as height measuring devices. However, digital sensors, for example with light-emitting diodes and photocells, can also be used.
  • a bell spinning device is shown, with a spindle 1, which carries a cop 2.
  • This cop 2 is surrounded by a bell 3 and is supplied in the known type of delivery rollers 4 with a thread with the delivery speed V, see for example EP-A 0 225 660.
  • the spindle 1 is driven by a single motor 5, and the bell 3 with a single motor 6.
  • the individual motors 5 and 6 are connected to frequency converters 7 and 8, each of which form a different frequency f 1 or f 2 due to a direct current signal transmitted by a programmable control unit 9, as a result of which the individual motors are driven at different speeds.
  • Asynchronous motors in particular have proven themselves for this type of frequency control.
  • a lifting mechanism 10 is connected to the single motor of the spindle, which ensures the stroke required for spinning.
  • the respective height of the lifting mechanism 10 is measured with a height measuring device 11.
  • This measuring device 11 is symbolically represented by a measuring staff 12 and a measuring transducer 13.
  • inductive or capacitive displacement measurement has proven itself, as is known, for example, from the book “Dubbel - Taschenbuch für Maschinenbau", 16th edition, page V24.
  • incremental encoders can be used, for example are based on light emitting diodes and photocells.
  • the slip constant C depends on the TYPE of the individual motor 6 and is in the range from 1.005 to 1.025.
  • the slip constant C depends on the TYPE of the individual motor 6 and is in the range from 1.005 to 1.025.
  • the asynchromotor type EV 40-20 from KaVo Elektrotechnisches Werk GmbH D-7970 Leutkirch in the Allgäu with a maximum output of 100 watts, it is approximately 1.01. The smaller fluctuations can be compensated for using the prescribed height measuring device.
  • the characteristic curves of the single motor shown in FIG. 2 for the bell m 1, m 2 and m 3 can be set via the parameter K, ie via the frequencies f 1 and f 2.
  • the effective speed n G of the bell is given by the formula determined and is by the factor C caused by the slip lower than the speed n G 'of the stator field.
  • the slip for the spindle is at most about 1 to 2% and is therefore of minor importance for the considerations made, ie n S ⁇ n S '.
  • the delivery speed V depends on the thread number in tex and on the spindle speed n S.
  • the load characteristics 1 1, 1 2 or 1 3 then result for a specific thread tension.
  • the speed of the bell is the same for the torque characteristics and the load characteristics shown.
  • the thread tension of the yarn formed can be set as desired for each yarn number.
  • the DC voltage signals delivered to the frequency converters 7 and 8 are now predetermined by the programmed control unit according to a specific program.
  • the lifting mechanism 10 is generally provided as a spindle bench in the type known in ring spinning machines. Using the above-described height measurement, the respective wind-up diameter d of the cop 2 can be determined, and the programmable control unit 9 can be used to largely compensate for the remaining periodic changes in the thread tension, which are caused by the lifting movement. However, the lifting mechanism 10 can also be assigned to the bells 3 of the spinning machine, the spindle 1 then remaining stationary with the spinning machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19910114722 1990-09-18 1991-09-02 Vorrichtung zum Spinnen eines echtgedrehten Garnes mittels einer Spindel und einer Glocke und Verfahren zum Spinnen mit einer solchen Vorrichtung Expired - Lifetime EP0476406B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3021/90 1990-09-18
CH302190A CH681988A5 (ja) 1990-09-18 1990-09-18

Publications (2)

Publication Number Publication Date
EP0476406A1 EP0476406A1 (de) 1992-03-25
EP0476406B1 true EP0476406B1 (de) 1995-01-04

Family

ID=4246856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910114722 Expired - Lifetime EP0476406B1 (de) 1990-09-18 1991-09-02 Vorrichtung zum Spinnen eines echtgedrehten Garnes mittels einer Spindel und einer Glocke und Verfahren zum Spinnen mit einer solchen Vorrichtung

Country Status (4)

Country Link
EP (1) EP0476406B1 (ja)
JP (1) JPH04245930A (ja)
CH (1) CH681988A5 (ja)
DE (1) DE59104135D1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ278771B6 (en) * 1991-01-24 1994-06-15 Vyzk Ustav Bavlnarsky A S Apparatus for continuous spinning of textile yarns
DE19881915D2 (de) * 1997-12-15 2001-01-18 Temco Textilmaschkomponent Einzelmotorische Textilmaschinenkomponente mit Stromrichter
DE102005035259A1 (de) * 2004-07-29 2006-03-23 Maschinenfabrik Rieter Ag Verfahren zum Betrieb einer Textilmaschine für das Erzeugen und/oder Veredeln, sowie Aufspulen eines Fadens und Textilmaschine
CH697668B1 (de) * 2004-09-23 2009-01-15 Rieter Ag Maschf Spindel mit Abschirmelement.
DE102005057013A1 (de) * 2005-11-30 2007-05-31 Maschinenfabrik Rieter Ag Textilmaschine und Verfahren zum Betreiben derselben
DE102008022672A1 (de) 2008-05-07 2009-11-12 Maschinenfabrik Rieter Ag Spinnmaschine mit einer Steuerung der Fadenspannung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE627345A (ja) * 1962-01-25
DE3741430A1 (de) * 1987-12-08 1989-06-22 Zinser Textilmaschinen Gmbh Spinnvorrichtung

Also Published As

Publication number Publication date
DE59104135D1 (de) 1995-02-16
JPH04245930A (ja) 1992-09-02
EP0476406A1 (de) 1992-03-25
CH681988A5 (ja) 1993-06-30

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