EP0546371B1 - Streckwerk für eine Strecke, insbesondere für eine Regulierstrecke für Baumwolle - Google Patents

Streckwerk für eine Strecke, insbesondere für eine Regulierstrecke für Baumwolle Download PDF

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Publication number
EP0546371B1
EP0546371B1 EP92119940A EP92119940A EP0546371B1 EP 0546371 B1 EP0546371 B1 EP 0546371B1 EP 92119940 A EP92119940 A EP 92119940A EP 92119940 A EP92119940 A EP 92119940A EP 0546371 B1 EP0546371 B1 EP 0546371B1
Authority
EP
European Patent Office
Prior art keywords
equipment according
drawing equipment
electronic
rotation
electric motors
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
EP92119940A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0546371A1 (de
Inventor
Paul Dr. Melcher
Jörg Hummel
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
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 Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0546371A1 publication Critical patent/EP0546371A1/de
Application granted granted Critical
Publication of EP0546371B1 publication Critical patent/EP0546371B1/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
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/18—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only
    • D01H13/187—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only using means stopping the driving of the drafting, guiding cylinders, e.g. friction clutches
    • 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
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control

Definitions

  • the invention relates to a drafting system for a line, in particular for a regulating section for cotton, with at least two successive pairs of rollers, each one have a roller driven by its own electric motor and with an electronic control device, by means of the speed of at least one of the electric motors can be regulated, or with a motor control device by means of which the speed of at least one of the electric motors can be adjusted.
  • the invention has for its object a drafting system for a route of the type mentioned with the simplest possible Means to train so that the rollers turn back is excluded at standstill.
  • a freewheel is preferably assigned to each driven roller.
  • the freewheel is preferably arranged coaxially to the roller. To this Way is a possible game through additional gear stages, gears, Timing belt or the like reduced or avoided. It is an advantage Freewheel arranged axially parallel to the roller. This allows a freewheel can be used for more than one driven roller.
  • An electronic motor control device is useful for each electric motor assigned to the electronic machine control device are connected.
  • the electric motors are each preferred Tachometer generator associated with the associated electronic Motor control device is connected.
  • the electronic engine control devices each matched the type that which at standstill from the electronic machine control to the Setpoints given engine control devices a counter torque of the electric motors in the opposite of normal operation Result in the direction of rotation.
  • the electric motors are preferably AC servo motors.
  • the electronic control device is preferably available for compensation of irregularities with a measuring element, e.g. B. tongue and groove roller pair, in connection.
  • a common electronic one is advantageous Control and regulating device, e.g. B. a microcomputer used.
  • Freewheel a sprag freewheel, preferably with a ball bearing forms an integral part.
  • the sprag freewheel locks automatically and immediately at the lowest torque in the reverse direction.
  • a drafting system for a spinning machine especially for a regulating section for cotton, with at least two successive pairs of rollers, each using one each own roller driven by an electric motor, and with one electronic control device, the speed of at least one of the Electric motors to compensate for any unevenness processing sliver regulates the driven rollers each a blocking against their operational direction of rotation Assigned freewheel.
  • a device which when the electric motors are stopped, a voltage is applied whose Sense of rotation the sense of rotation of one created during normal operation Voltage is directed in the opposite direction, the height of the at Stopping the delivered control voltage is selected such that a electronic drift in the operational direction of rotation of the electric motors 14, 17 is excluded. This is advantageous for Shut down given control voltage about -1mV.
  • a device which at standstill to the Electric motors apply a voltage whose direction of rotation corresponds to the direction of rotation a voltage applied during normal operation is, preferably the amount of the delivered at standstill Control voltage is chosen such that an electronic drift in the operational sense of rotation of the electric motors 14, 17 excluded is.
  • a rotation of the rollers is thus definitely excluded because on the one hand the control voltage mentioned above the sense of rotation in the operating direction, on the other hand the freewheel in the direction of rotation Counteracts the opposite direction.
  • the control voltage emitted at standstill is expediently approximately -1 mV.
  • the freewheel is advantageously arranged in a gear stage.
  • the freewheel is preferably assigned to the input lower roller.
  • the freewheel is expediently integrated in one of the electric motors.
  • the regulating drafting system shown in Fig. 1a has a pair of input rollers 10, 10 ', a pair of central rollers 11, 11' and a Auswalzenwalpar 12, 12 ', of which the input lower roller 10, the middle lower roller 11 and the output lower roller 12 are driven are.
  • These lower rollers 10, 11, 12 are with adjustable pressure forces assigned loaded, freely rotatable top rollers 10 ', 11', 12 ' (see Fig. 1b).
  • the input bottom roller 10 and the center bottom roller 11 are connected to one another via a gear stage, the Translation corresponds to a given pre-default.
  • the electric motor 14 is a Subsequent freewheel 49, which rotates the input lower roller 10 and the middle lower roller 11 against the running direction (arrow direction A) locks a sliver 16 to be processed.
  • the output roller 12 is by means of its own electric motor 17 driven. Between this electric motor 17 and the output lower roller 12, a freewheel 18 is arranged, which also rotates the output lower roller 12 against the direction (A) of the Sliver 16 locks.
  • the speeds of the electric motors 14 and 17 are determined by means of a electronic control device so regulated that on the one hand in the Main draft zone between the middle roller pair 11, 11 'and Output roller pair 12, 12 'a delay to the desired fineness takes place while at the same time fluctuating mass of the incoming Sliver 16 are balanced as much as possible.
  • 1a is driven between the electric motor 14 and the two Rollers 10 and 11 have a common transmission shaft 30 available to which the freewheel 49 is assigned.
  • the common continuous transmission wave 30 realizes branching, the electric motor 14 directly and the transmission shaft 30 then indirectly branching from the transmission shaft 30 drives the two rollers 10 and 11 downstream.
  • the gear stages or transmission stages with toothed belt to the roller 10 on the one hand and to the roller 11 on the other hand are advantageous in this way adjustable.
  • the freewheels 49 and 50 are arranged axially parallel to the rollers 10, 11 and 12 respectively.
  • With 31 to 41 are gear wheels or toothed belt wheels.
  • At 42 to 46 are called timing belts.
  • a the fiber material flow is in the working direction specified.
  • each electric motor 14, 17 is assigned an electronic motor control device 51 or 52 (speed control), which are connected to the common electronic machine control device 53.
  • the electric motors 14, 17 are each assigned a tachometer generator 54 or 55, which is connected to the associated electronic motor control device 51 or 52.
  • the electronic motor control devices 51, 52 are each electrically adjusted in such a way that the setpoints 56 and 57 for the speed and direction of rotation given by the electronic machine control device 53 to the motor control devices 51, 52 for torque and torque of the electric motors 14 and 17 in the normal operation (see arrows C to H in Fig. 1b) result in the opposite direction of rotation.
  • FIGS. 2a, 2b further shows that signals 58 and 59, which determine the direction of rotation of the electric motors 14, 17, are also input by the electronic machine control device 53 into the motor control devices 51 and 52, respectively.
  • the setpoints only determine the speed here.
  • the electronic machine control device is shown in FIGS. 2a, 2b.
  • a common electronic control and regulating device, e.g. B. a microcomputer can be used, which includes the machine control device 53 and the (not shown) electronic control device for compensating for irregularities.
  • the electronic engine control devices 52, 51 are each adjusted in such a way that the setpoints given at shutdown 56, 57 tends to make the engines 14, 17 a light, the normal Operation give opposite direction of rotation, one rotation but is prevented by the freewheels 15, 18, 47, 49, 50. On in this way a lead lock is implemented.
  • the lower rollers 10, 11, 12 have a speed of z. B. from 1400, 2000 or 7200 rpm and a diameter z. B. of 35 mm, 35 mm or 40 mm.
  • a speed of z. B. from 1400, 2000 or 7200 rpm and a diameter z. B. of 35 mm, 35 mm or 40 mm.
  • the Belt running speed approx. 900 m / min at a speed of 7200 rpm the lower roller 12.
  • the freewheels 15, 18, 47, 49, 50 allow one as a backstop Rotation of the rollers in one direction only, i. H. in the forward direction C to H (see FIG. 1b) during operation. After the drafting system has come to a standstill, the freewheel prevents a retrograde Rotation of the rollers.
  • the balls are in a solid Cage, which according to FIG. 3 simultaneously has a number of individually sprung springs Clamping body 65 leads.
  • the clamping body 65 have in Freewheel direction I “lifting” due to its geometric shape Tendency ", which at high speeds up to perfect contact freedom leads to the rings (inner ring 66 and outer ring 67). It is important that the relative cage speed is sufficient Radial load on the bearing. This sprag freewheel 15, 18, 47, 49, 50 works continuously and non-positively.
  • the clamp body 65 lift in freewheeling direction I (forward direction) due to the centrifugal force from.
  • the inner ring 66 is fixed, for. B. as Press fit, arranged on the drive shaft (e.g. for the lower rollers, whereby the locking effect against the drive shaft occurs.
  • the outer ring 67 does not rotate.
  • Fig. 3a shows a section of a sprag freewheel in which the clamp body 65 abut the rings 66, 67 so that the return is locked in the K direction.
  • 3b and 3c the combination is one Sprag freewheel shown with a ball bearing.
  • 3c are the sprags 65 are lifted from the rings 66, 67, d. H. it is the freewheel rotation I shown. With 69 the balls are designated.
  • the invention is illustrated using the example of a sprag freewheel, but also includes other non-positively acting freewheels, e.g. B. Pinch roller freewheels. Furthermore, the invention includes both unsupported Freewheels in which the shaft is separated by separate bearings, e.g. B. rolling bearings, is stored as well as stored freewheels (combination), in which the Freewheel and z. B. the rolling bearing (ball bearings, cylindrical roller bearings, needle bearings, Barrel storage) form an integral component (Fig. 3b, 3c).
  • the advance lock in the form of the counter torque for the electric motors 14, 17 has the further advantage that the unwanted forward rotation Forward rotation of the rollers at standstill is excluded; turning forward occurs only when the motor control devices 51, 52 (drive system) are not exactly adjusted to ⁇ 0, d. H. the Forward turning can occur.
  • the desired comparison is in itself when the electric motor 14, 17 is silent at a setpoint 56, 57 of zero stands. In operation, however, there can be a deviation from zero adjustment and thus electronic drift in the forward direction, which is caused by the Back torque is avoided.
  • the draw frame shown in Fig. 4 of the drawing has an input roller pair 10, 10 ', a middle roller pair 11, 11' and a Output roller pair 12, 12 ', each of which the input lower roller 10, the middle lower roller 11 and the output lower roller 12 are driven.
  • These bottom rollers are adjustable Freely rotating top roller 10 ', 11', 12 ' assigned.
  • the input lower roller 10 and the middle lower roller 11 are connected to each other via a gear stage 13, the translation thereof corresponds to a predefined default.
  • the middle lower roller 11 and so that the input lower roller 10 are driven by an electric motor 14 driven. Between the electric motor 14 and the middle lower roller 11 is a freewheel 15 which rotates the center lower roller 11 and thus also the input lower roller 10 against the direction of travel (Arrow direction A) of a fiber structure 16 to be processed locks.
  • the output lower roller 12 is by means of its own electric motor 17 driven. Between this electric motor 17 and the Output lower roller 12 is a freewheel 18, which is also arranged rotating the output lower roller (12) counter to the direction of travel A of the fiber structure 16 blocks.
  • the speeds of the electric motors 14 and 17 are determined by means of a electronic control device 19 controlled so that on the one hand in the main draft zone between the middle roller pair 11, 11 'and the output roller pair 12, 12 'a delay to the desired Fineness takes place, while at the same time fluctuations in the mass tapered fiber structure 16 balanced as much as possible will.
  • These mass fluctuations in the fiber structure will be by means of a, arranged in front of the pair of input rollers 10, 10 ' Detector device detected and as control signal 20 in the electronic Control device 19 entered.
  • the detector device is from a grooved roller pair 25 known per se, which has a Toothed belt drive 26 from the input lower roller 10 and thus from the electric motor 14 is driven.
  • the electronic Control device 19 supplies the electric motors 14, 17 upstream frequency converter 27, 28 with a control voltage from 0 V to about 10 V, so that even in the range of low Speeds an exact control is possible.
  • the frequency converter 27, 28 connected to a three-phase supply 21 with 380 V and Mains frequency are connected, supply the electric motors 14, 17 with a dependent on the applied control voltages Frequency and three-phase voltage.
  • the electronic control device 19 is not shown in FIG Way with a start and stop device whose signal, which is indicated by an arrow 22, in the electronic Control device 19 is entered. With a stop signal, the electronic control device 19, the control frequency of the electric motors 14, 17, which are designed as synchronous motors, on O. Die Freewheels 15, 18, which are preferably commercially available roller bearing freewheels are then preventing reverse rotation of the lower rollers 10, 11, 12, d. H. rotating the lower rollers 10, 11, 12 against normal running direction A of the fiber structure 16.
  • Deviating from the embodiment shown in Fig. 4 can the freewheel 15 also at a different location than between the electric motor 14 and the middle lower roller 11 are arranged. For example he arranged in the gear stage 13 or the input lower roller 10 can be assigned.
  • the freewheel 15 could also be in the Electric motor 14 are integrated.
  • this freewheel can also be integrated into the electric motor 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP92119940A 1991-12-12 1992-11-24 Streckwerk für eine Strecke, insbesondere für eine Regulierstrecke für Baumwolle Expired - Lifetime EP0546371B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4140984 1991-12-12
DE4140984A DE4140984C2 (de) 1991-12-12 1991-12-12 Streckwerk für eine Spinnereimaschine, insbesondere Regulierstrecke für Baumwolle
DE4232302 1992-09-26
DE4232302A DE4232302B4 (de) 1991-12-12 1992-09-26 Streckwerk für eine Spinnereimaschine, insbesondere für eine Regulierstrecke für Baumwolle

Publications (2)

Publication Number Publication Date
EP0546371A1 EP0546371A1 (de) 1993-06-16
EP0546371B1 true EP0546371B1 (de) 1998-01-28

Family

ID=25910012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119940A Expired - Lifetime EP0546371B1 (de) 1991-12-12 1992-11-24 Streckwerk für eine Strecke, insbesondere für eine Regulierstrecke für Baumwolle

Country Status (9)

Country Link
US (1) US5438733A (zh)
EP (1) EP0546371B1 (zh)
JP (1) JP3323554B2 (zh)
CN (1) CN1081690C (zh)
BR (1) BR9204992A (zh)
CH (1) CH686578A5 (zh)
DE (3) DE4140984C2 (zh)
GB (1) GB2262750B (zh)
IT (1) IT1256311B (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140984C2 (de) * 1991-12-12 1997-09-25 Truetzschler Gmbh & Co Kg Streckwerk für eine Spinnereimaschine, insbesondere Regulierstrecke für Baumwolle
EP0671355B1 (de) * 1994-03-09 1999-05-06 Maschinenfabrik Rieter Ag Bandablage
US5866995A (en) * 1994-05-09 1999-02-02 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Auxiliary system for a motor vehicle
DE19529753B4 (de) * 1995-08-12 2005-11-17 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren zur Gewährleistung eines exakten Regeleinsatzes für den Verzug eines Faserverbandes einer Vorspinnereimaschine und Vorrichtung zur Durchführung
DE19644560B4 (de) * 1996-10-26 2007-10-11 TRüTZSCHLER GMBH & CO. KG Streckwerk für eine Spinnereimaschine, insbesondere eine Regulierstrecke für Baumwolle
TR200000962T2 (tr) * 1997-09-01 2001-07-23 Maschinenfabrik Rieter Ag Ayarlı çekme tertibatı.
JPH11218144A (ja) * 1997-11-17 1999-08-10 Nippon Seiko Kk ワンウェイクラッチ内蔵転がり軸受
JP2000303269A (ja) * 1999-04-23 2000-10-31 Howa Mach Ltd 紡機のドラフトローラ駆動装置
DE19925271B4 (de) * 1999-06-02 2012-07-12 Trützschler GmbH & Co Kommanditgesellschaft Streckwerk für eine Spinnereimaschine, insbesondere eine Regulierstrecke für Baumwolle, Chemiefasern u. dgl.
DE10200958A1 (de) * 2002-01-12 2003-07-24 Rieter Ingolstadt Spinnerei Adaptereinrichtung zwischen einem Motor und einer Textilmaschine
JP4670522B2 (ja) * 2005-07-19 2011-04-13 株式会社豊田自動織機 紡機におけるドラフト装置
DE102005037124A1 (de) * 2005-08-06 2007-02-08 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren zur Steuerung des Verzugs eines Verzugsfeldes einer Textilmaschine sowie Textilmaschine
DE102007020448B4 (de) * 2007-04-27 2015-10-15 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Strecke, Karde, Kämmmaschine o. dgl. mit einem Streckwerk
DE102008040871A1 (de) 2008-07-30 2010-02-04 Rieter Ingolstadt Gmbh Regulierstrecke mit elektrischer Bremse und Verfahren zum Umrüsten einer Regulierstrecke für wartungsarmen Betrieb
ITBS20110166A1 (it) * 2011-11-30 2013-05-31 Marzoli Spa Apparato di movimentazione per la cilindrata di un filatoio
JP6323328B2 (ja) * 2014-12-18 2018-05-16 株式会社豊田自動織機 紡機におけるドラフト装置の制御方法
DE102016110304A1 (de) * 2016-06-03 2017-12-07 Maschinenfabrik Rieter Ag Spinnereivorbereitungsmaschine in Form einer Strecke sowie Verfahren zum Betreiben derselben
CN106498570B (zh) * 2016-12-14 2018-08-10 盐城工学院 一种具备条干测试功能且加捻卷绕一体化的细纱机及制造细纱的方法

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FR1441014A (fr) * 1965-06-29 1966-06-03 Dispositif pour produire des effets de flammé sur des fils traités dans un métier à filer
GB1471414A (en) * 1973-09-24 1977-04-27 Mackie & Sons Ltd J Spinning
IT1057187B (it) * 1976-02-13 1982-03-10 Bolli G Perfezionamenti nei meccanismi di comando di filatoi..provvisti di mezzi atti a promouvere la creazione di cosiddette fiamme sul filato
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US4266324A (en) * 1978-12-27 1981-05-12 Kabushiki Kaisha Toyota Chuo Kenkyusho Silver weight unevenness correcting apparatus
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DE3801880C3 (de) * 1988-01-22 2000-07-13 Truetzschler Gmbh & Co Kg Streckwerk in Spinnereimaschinen, insbesondere Regulierstreckwerk in Strecken
DE3805662A1 (de) * 1988-02-24 1989-09-07 Skf Textilmasch Komponenten Ringspinnmaschine
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DE4103525A1 (de) * 1990-04-09 1991-10-10 Truetzschler & Co Vorrichtung zum verziehen von faserbaendern, z. b. aus baumwolle, chemiefaser u. dergl.
DE4140984C2 (de) * 1991-12-12 1997-09-25 Truetzschler Gmbh & Co Kg Streckwerk für eine Spinnereimaschine, insbesondere Regulierstrecke für Baumwolle

Also Published As

Publication number Publication date
US5438733A (en) 1995-08-08
DE4140984A1 (de) 1993-06-17
DE59209171D1 (de) 1998-03-05
CN1081690C (zh) 2002-03-27
BR9204992A (pt) 1993-06-15
GB2262750B (en) 1996-01-10
IT1256311B (it) 1995-11-30
DE4140984C2 (de) 1997-09-25
ITMI922577A1 (it) 1994-05-11
JPH05247737A (ja) 1993-09-24
DE4232302B4 (de) 2004-04-29
CH686578A5 (de) 1996-04-30
GB9225786D0 (en) 1993-02-03
DE4232302A1 (de) 1994-03-31
ITMI922577A0 (it) 1992-11-11
JP3323554B2 (ja) 2002-09-09
EP0546371A1 (de) 1993-06-16
CN1080000A (zh) 1993-12-29
GB2262750A (en) 1993-06-30

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