EP0380923B1 - Machine textile, en particulier métier à filer - Google Patents

Machine textile, en particulier métier à filer Download PDF

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Publication number
EP0380923B1
EP0380923B1 EP90100312A EP90100312A EP0380923B1 EP 0380923 B1 EP0380923 B1 EP 0380923B1 EP 90100312 A EP90100312 A EP 90100312A EP 90100312 A EP90100312 A EP 90100312A EP 0380923 B1 EP0380923 B1 EP 0380923B1
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EP
European Patent Office
Prior art keywords
counter
cylinder
markings
textile machine
electronic
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
EP90100312A
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German (de)
English (en)
Other versions
EP0380923A1 (fr
Inventor
Urs Dr. Meyer
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
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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 EP0380923A1 publication Critical patent/EP0380923A1/fr
Application granted granted Critical
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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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • 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

Definitions

  • the invention relates to a textile machine, in particular a spinning machine, with at least one drafting system comprising a plurality of strands, such as, in particular, roller pairs, cylinders / roller pairs or the like, for forming at least one draft zone located between two respective strands, which can be driven at different, in particular adjustable, speeds to produce the draft are, with at least two strands of the drafting device each being assigned a pulse generator and the output signals of the pulse generator depending on the cylinder speed in question have different pulse repetition frequencies in operation, and in which an electronic counter provides a trigger signal for an alarm, a machine downtime or the like.
  • at least one drafting system comprising a plurality of strands, such as, in particular, roller pairs, cylinders / roller pairs or the like, for forming at least one draft zone located between two respective strands, which can be driven at different, in particular adjustable, speeds to produce the draft are, with at least two strands of the drafting device each being assigned a pulse generator and the output signals of the
  • the speed ratios between the strands are particularly important for yarn counting is vital.
  • the strands must also start "gearwheel-precisely", that is, in a predetermined ratio, the angle of rotation from standstill and be stopped again when starting. Even during normal operation of the spinning machine in question, it is imperative to maintain the speed ratios mentioned in order to maintain a consistently high yarn quality.
  • the sensors are connected directly to the shafts, whereby on the one hand the shaft can be influenced by an interaction between the sensor and the shaft and on the other hand the associated sensor must also be replaced when the shaft is exchanged.
  • the calculated ratio can only be compared with a predetermined target ratio before a possible shutdown signal can be emitted, which means an additional circuit effort.
  • a circuit arrangement for electronically regulating the speed of a drive device to a setpoint in which a counting circuit contains two inputs, pulses derived from the setpoint being present at the first input and pulses derived from the current speed being present at the second input. Depending on whether the setpoint is greater than the actual value or vice versa, the counter circuit can only count up to a minimum value or upwards to a maximum value.
  • the drive device is connected to the output of a counter stage. If the number selected in the counting range is undershot, the power supply is switched on, if it is exceeded, the power supply is blocked, as a result of which the speed of the drive device changes accordingly.
  • a device for speed control of a rotating body in which a tachometer rotor which is mechanically connected to a rotating body is provided with P teeth on the circumference.
  • a sensor generates a pulse each time one of these teeth passes, resulting in a frequency signal with p times the rotational frequency, which is recorded by a counter.
  • An output signal is generated after every (n ⁇ P) th pulse.
  • the frequency of a high-frequency clock is counted by a second counter and the count result is stored in a memory. After each output pulse the counted result of the first counter is reset.
  • a representation of the orbital time of the rotating body can be obtained, from which a comparator derives a speed control signal.
  • the invention has for its object to provide a textile machine of the type mentioned, in which a reliable monitoring of the drafting system is ensured in an extremely simple manner, in particular with regard to compliance with predetermined speed ratios of the different drafting system strands.
  • This design ensures that even the smallest deviations in the speed of the drafting system strands and therefore not easily detectable yarn defects can be reliably and quickly detected with the simplest means.
  • the delicacy of the delay errors still to be recognized is due to the number of markings, in particular the differences the number of these markings for the cylinders of a respective strand pair, the width of the pulses generated and the width of the time interval or reset window can be specified.
  • the counter is replaced by the pulses of the first output signal, which has a higher pulse repetition frequency, e.g. counted up.
  • a kind of reset window is opened, which is closed again after reaching the upper meter reading limit. If a pulse of the second output signal having a lower pulse repetition frequency falls into the open reset window, the counter is reset when this pulse occurs and then counted up again by the pulses of the first output signal.
  • the pulse repetition frequency of the second output signal is chosen in particular by the relative number of markings such that at no time do two pulses of this signal fall into the reset window. If a relevant pulse of the second output signal occurs too early with respect to the reset window, the counter cannot be reset. As a result, e.g.
  • the upper counter limit value is reached, after which the trigger signal for an alarm, a machine standstill or the like is issued.
  • the relevant pulse of the second output signal occurs too late with respect to the reset window.
  • the e.g. upper counter limit reached and the relevant trigger signal issued.
  • a counting counter can also be used in a corresponding manner.
  • the decisive criterion for the release of the trigger signal is that the lower meter reading limit value is not reached.
  • the invention can preferably be used for monitoring the relative speeds of the drafting system strands, it can in principle also be used for corresponding monitoring of the relative speeds, in particular of the delivery line of the drafting system and the spindles.
  • the drafting system (and the ring bench) are to be moved in relation to the spindles in such a way that, on the one hand, there are no thread breaks and, on the other hand, the yarn quality that occurs when starting or stopping corresponds to that of normal operation as far as possible.
  • the drafting system monitoring according to the invention can be implemented using such simple and therefore inexpensive components, such as, in particular, electronic counters and the like.
  • the cylinder of the strand of the drafting system rotating during operation at a higher speed preferably has a higher number of markings than is the case with the strand rotating at a lower speed.
  • a much higher pulse repetition frequency of the first output signal which effects the counting is additionally achieved in a simple manner, so that overall high resolution can be achieved with sufficiently narrow pulses of the second output signal.
  • the highest resolution results from the smallest reset window or counting interval, which is determined, for example, by the distance between two pulses of the first pulse generator output signal which effects the counting.
  • the cylinder with the smaller number of markings can expediently have only a single marking. As a result, the relative difference in the number of markings and thus the pulse repetition frequencies of the two pulse generator output signals is greatly increased, which results in an additional improvement in the resolution of the delay errors.
  • the larger number of markings of the relevant cylinder can expediently be at least ten times, preferably ten times to thousands, and in particular one hundred times the smaller number of markings of the other cylinder concerned.
  • the markings are preferably arranged on the circumference of the cylinders in question and, in the case of a large number of markings per cylinder, are distributed uniformly over the circumference of this cylinder. In the case of rotating cylinders, this results in a constant pulse repetition frequency for a respective cylinder, provided that this cylinder is driven at a constant speed.
  • the rear or feed line and on the other hand the front or delivery line of the drafting device is assigned to each. This is particularly useful in the event that the middle strand and the rear strand of the drafting system are connected to one another via a gear and can be driven by a common drive, while the front or delivery strand can be driven separately.
  • a common rear cylinder, a common front or delivery cylinder and possibly a common center cylinder are provided for several drafting systems, the markings are expediently arranged on the relevant common, preferably lower cylinders or rollers.
  • the electronic counter can be part of a digital tachometer so that, for example, the absolute speeds can also be indicated at the same time.
  • the predeterminable lower and upper counter limit values which determine the reset time window are preferably programmable in the electronic counter or digital tachometer.
  • a battery-buffered memory is expediently provided for storing these lower and upper meter reading limit values, so that the entered values are still available even after restarting.
  • the electronic counter or the digital tachometer has a digital display, in particular for displaying the measured speeds and / or speed differences.
  • the pulse generators that respond to the markings can include optical, inductive or capacitive sensors.
  • a drafting device 52 is shown, for example, a ring spinning machine.
  • the drafting system shown comprises a rear or feed strand 54, a middle strand 56 and a front or delivery strand 58.
  • the sliver or thread 16 is e.g. delivered to a spindle of the relevant ring spinning machine.
  • the strands 54, 56, 58 of the drafting unit 52 each comprise a lower cylinder, namely the rear or feed cylinder 10, the middle cylinder 12 and the front or delivery cylinder 14 and on the other hand each an overhead roller, namely the rear or feed roller 60, the middle one Roller 62 and the front or delivery roller 64.
  • the cylinders 10, 12, 14 located below are each intended simultaneously for several drafting systems on a respective machine side.
  • a special drive 18, 20, 22 is assigned to each of these cylinders.
  • These drives can each comprise, for example, a drive motor that is speed-controlled via the supply frequency.
  • the rotational speed of the drafting system strands 54, 56, 58 increases from the intake strand to the front delivery strand 58, so that a pre-drafting field 66 is formed between the first pair of strings 54, 56 and a main drafting field 68 is formed between the second pair of strands 56, 58.
  • the rear cylinder 10 and the delivery cylinder 14 are provided with markings 36, 38. These markings are each arranged on the circumference of the relevant cylinder 10, 14 and are detected by sensors 28, 30 of two pulse generators 24, 26. One pulse generator 24 or its sensor 28 is arranged in the peripheral region of the rear cylinder 10 driven at a lower speed, while the other pulse generator 26 is provided in the peripheral region of the front or delivery cylinder 14 rotating at a higher speed.
  • the pulse generator 26 supplies a first output signal S 1 via a signal line 34 to a counter input 42 of an electronic counter 70 formed, for example, by a digital tachometer.
  • the pulse generator 24 assigned to the rear cylinder 10 supplies a second output signal S 2 to a reset input 40 of the electronic counter 70 via a signal line 32 .
  • the sensors 28, 30 can be, for example, optical, inductive or capacitive sensors.
  • the two pulse generators 24, 26 comprise pulse shaping circuits for delivering at least substantially rectangular pulses.
  • the faster rotating front or delivery cylinder 14 has a larger number of such markings 38 on the circumference.
  • one hundred such markings 38 are provided for the delivery cylinder 14.
  • the pulse generator 24 emits only one pulse per revolution of the rear cylinder 10
  • the pulse generator 26 thus delivers one hundred such pulses per revolution of the delivery cylinder 14.
  • the rear cylinder 10 can be driven, for example, in a speed range from 0.9 to 45 rpm and the delivery cylinder 14, for example, in a speed range from 15 to 480 rpm. This results in values of 0.75 Hz or 850 Hz for the maximum frequency.
  • the electronic counter 70 or digital tachometer has two control inputs 48, 50 for setting a lower and an upper counter limit value.
  • a counting interval is defined by the two respectively set lower and upper counter reading limit values, which determines a reset time window T 1 to T 2 of the electronic counter 70 (cf. also FIG. 3).
  • the electronic counter 70 can only be reset by a respective pulse of the pulse generator 24, ie the second pulse generator output signal S2, during this predeterminable counting interval or reset time window.
  • the electronic counter 70 If a pulse derived from the mark 36 of this second pulse generator output signal S2 with respect to the set reset time window T1 to T2 occurs too early or too late, then the electronic counter 70 is not reset, from which it follows that in the case of an incrementing counter the upper limit value of the counter and in the case of a down counter, the lower limit value is reached. After a corresponding passage through the reset time window and reaching the relevant counter reading limit value, the electronic counter 70 supplies a trigger signal S3, for example for an alarm, a machine downtime or the like.
  • an up counter is provided as the electronic counter 70, as can be seen in particular from the time diagram according to FIG. 3.
  • the pulses 44 derived from the rear cylinder 10 are shown in the upper part of the time diagram.
  • the time T U / Hz indicates the time required for one revolution of the rear cylinder 10.
  • the diagram according to FIG. 3 only part of the pulses 46 is shown.
  • the pulses 44, 46 of the two output signals S2 and S1 have the same amplitudes A. Although in the example shown the pulse width of the pulses 44 is smaller than that of the pulses 46, this pulse width generally does not matter; the edges of the impulses are decisive.
  • the reset window RF is opened at time T 1 and closed again at time T 2.
  • the RF signal has the logic zero state when the reset time window or resettor is open, while the logic one state prevails when the reset time window RF is closed.
  • the time T1 is determined in the present embodiment by the rising edge of the pulse 46 'of the first pulse generator output signal S1, when the counting electronic counter 70 occurs, the one by the first Control input 48 assumes the lower meter reading limit.
  • This lower counter reading limit value can be set to the value 3752, for example.
  • the time T2 forming the upper limit of the reset time window is determined by the rising edge of a pulse 46 ⁇ of the first pulse generator output signal S1, upon occurrence of which the electronic counter 70 assumes the upper counter limit value, which can be set by the second control input 50. In the present case, this upper counter limit is set to 3756.
  • the electronic counter 70 is reset to then e.g. count up again until the next reset.
  • the upper counter limit is reached with the same consequences even if a pulse 44 ⁇ of the second pulse generator output signal S2 occurs at a time T3 after the time window T1 to T2. In this case, too in the time window T1 to T2 none of the pulses 44, so that the counter 70 can not be reset and yet the upper limit value is reached.
  • the width of the reset time interval T1 to T2 can be varied.
  • the minimum width is predetermined, for example, by the distance between the rising edges of two successive pulses 46 of the first output signal S 1 emitted by the pulse generator 26.
  • each line is assigned a pulse generator and the output signals of the two are assigned to a respective line pair 54, 58; 54, 56; 56, 58 assigned pulse generator to the counter input 42 or reset input 40 of a respective electronic counter.
  • the electronic counter 70 is formed by a part of a digital tachometer, by means of which, for example, the absolute speeds and / or the speed ratios can be displayed.
  • the predeterminable lower and upper counter limit values can be programmable in the electronic counter 70 or digital tachometer.
  • markings 36, 38 are preferably arranged on the lower cylinders 10, 14 and possibly 12, it is in principle also conceivable to provide the rollers 60, 62, 64 on the top with these markings.
  • the monitoring device described can also be used to monitor the relative speed ratios, in particular of the delivery line 58 and the relevant spindles.
  • a higher number of markings in particular the same number of markings as in the case of the faster-running strand, can also be provided.
  • a divider module is expediently connected downstream of the connected pulse generator in order to again receive the one pulse per revolution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (12)

  1. Machine textile, particulièrement machine à filer, avec au moins un train étireur (52) comprenant plusieurs tronçons (54, 56, 58), comme par exemple des paires de rouleaux, des paires de cylindres/rouleaux ou identiques, afin de délimiter au moins un champ d'étirage (66, 68) situé entre deux tronçons, paires qui peuvent être entraînées avec des nombres de tours différents afin de produire l'étirage, et où un émetteur d'impulsions (24, 26) est adjoint à au moins deux tronçons (54, 58) du train étireur (52), et les signaux de sortie (S1, S2) des émetteurs d'impulsions (24, 26) présentent, pendant la marche, différentes fréquences de répétition d'impulsions qui sont dépendantes du nombre de tours en question des cylindres, et dans laquelle un compteur électronique (70) livre un signal de déclenchement (S3) pour une alarme, un arrêt de machine ou identique,
    caractérisée par le fait que
    les émetteurs d'impulsions (24, 26) réagissent à des marquages (36, 38) d'un rouleau respectivement d'un cylindre (10, 14) du tronçon en question, que, pendant la marche, les différentes fréquences de répétition d'impulsions correspondantes dépendent également du nombre respectif des marquages, que le premier signal de sortie (S1), possédant une fréquence de répétition d'impulsions plus élevée, est dirigé vers une entrée de comptage (42), et le deuxième signal de sortie (S2), possédant une fréquence de répétition d'impulsions plus basse, est dirigé vers une entrée de remise à l'état initial (40) du compteur électronique (70), que le compteur ne peut être remis à l'état initial par le deuxième signal de sortie (S2) que pendant un intervalle de comptage (T1-T2) pouvant être présélectionné par une valeur limite d'état de compteur inférieure et une valeur limite d'état de compteur supérieure, et que le compteur électronique (70) livre le signal de déclenchement (S3) après un passage de cet intervalle de comptage formant une fenêtre de remise à l'état initial, et où particulièrement le cylindre (14) du tronçon (58), tournant avec un nombre de tours plus élevé pendant la marche, possède un nombre de marquages (38) plus élevé que celui du tronçon (54) tournant avec un nombre de tours plus bas.
  2. Machine textile selon revendication 1,
    caractérisée par le fait que
    le nombre de marquages (36) plus élevé du cylindre (14) en question représente au moins dix fois, de préférence dix fois jusque mille fois, et particulièrement le centuple du nombre de marquages (36) plus faible du cylindre (10) en question.
  3. Machine textile selon revendication 1 ou 2,
    caractérisée par le fait que
    le cylindre (10) ayant le nombre de marquages plus faible présente uniquement un seul marquage (36).
  4. Machine textile selon revendication 1,
    caractérisée par le fait
    qu'un diviseur de module est placé en aval d'au moins un des deux émetteurs d'impulsions (24, 26), et que le cylindre adjoint (10) présente plus qu'un marquage (36), de préférence le même nombre de marquages que le cylindre (14) adjoint à l'autre émetteur d'impulsions (26).
  5. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    les marquages (36, 38) sont disposés sur la circonférence des cylindres (10, 14) et que, pour une pluralité de marquages (38) par cylindre (14), ils sont répartis uniformément sur la circonférence de ce cylindre.
  6. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait
    qu'un émetteur d'impulsions (24, 26) est adjoint, d'une part, au tronçon arrière ou tronçon d'entrée (54) et, d'autre part, au tronçon de devant ou tronçon de livraison (58), ou qu'un émetteur d'impulsions (24, 26) est adjoint, d'une part, au tronçon du milieu (56) et, d'autre part, au tronçon de devant ou tronçon de livraison (58).
  7. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    tous les tronçons de train étireur (54, 56, 58) peuvent être entraînés séparément, qu'un émetteur d'impulsions (24, 26) est adjoint à chaque tronçon, émetteur qui réagit aux marquages disposés sur les cylindres adjoints (10, 14), et que les signaux de sortie (S1, S2) des deux émetteurs d'impulsions adjoints à une paire de tronçons correspondante (54, 58; 54, 56; 56, 58) sont dirigés vers l'entrée de comptage (42) respectivement l'entrée de remise à l'état initial (40) d'un compteur électronique correspondant (70).
  8. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait
    qu'il est prévu un cylindre arrière (10), un cylindre de devant ou de livraison (14) et, le cas échéant, un cylindre intermédiaire (12) communs pour plusieurs trains étireurs, et où les marquages (36, 38) sont disposés sur les cylindres communs correspondants (10, 12, 14).
  9. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    le compteur électronique (70) est un compteur digital ou que le compteur électronique (70) fait partie d'un tachymètre digital.
  10. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    les valeurs limites inférieures et supérieures du niveau de compteur, pouvant être présélectionnées, sont programmables et emmagasinables dans le compteur électronique (70) respectivement le tachymètre digital, et où une mémoire tampon à batterie est prévue particulièrement pour mémoriser les valeurs limites inférieures et supérieures du niveau de compteur.
  11. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    le compteur électronique (70) respectivement le tachymètre digital comprend un indicateur digital, particulièrement pour une indication des nombres de tours mesurés et/ou des différences des nombres de tours.
  12. Machine textile selon l'une des revendications précédentes,
    caractérisée par le fait que
    les émetteurs d'impulsions (24, 26), réagissant aux marquages (36, 38), comprennent des détecteurs optiques, magnétiques, inductifs ou capacitifs (28, 30).
EP90100312A 1989-01-09 1990-01-08 Machine textile, en particulier métier à filer Expired - Lifetime EP0380923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3900409A DE3900409A1 (de) 1989-01-09 1989-01-09 Textilmaschine, insbesondere spinnmaschine
DE3900409 1989-01-09

Publications (2)

Publication Number Publication Date
EP0380923A1 EP0380923A1 (fr) 1990-08-08
EP0380923B1 true EP0380923B1 (fr) 1993-09-22

Family

ID=6371743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100312A Expired - Lifetime EP0380923B1 (fr) 1989-01-09 1990-01-08 Machine textile, en particulier métier à filer

Country Status (4)

Country Link
US (1) US5003668A (fr)
EP (1) EP0380923B1 (fr)
JP (1) JPH02277835A (fr)
DE (2) DE3900409A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH685164A5 (de) * 1992-03-05 1995-04-13 Zellweger Uster Ag Verfahren und Vorrichtung zur Regelung des Verzugs eines Streckwerks.
US5391970A (en) * 1993-09-30 1995-02-21 Allen-Bradley Company, Inc. Motion controller with remote linking and time disturbance correction
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
JP3196706B2 (ja) * 1997-09-22 2001-08-06 村田機械株式会社 紡績機の運転方法
DE10352303A1 (de) * 2003-11-06 2005-06-09 Rieter Ingolstadt Spinnereimaschinenbau Ag Streckwerk für eine Spinnereimaschine
CN118547408A (zh) * 2019-01-31 2024-08-27 乌斯特技术股份公司 针对异物优化纺纱过程

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE566081A (fr) * 1957-03-27
CH459334A (de) * 1963-10-05 1968-07-15 Deutsche Post Rundfunk Schaltungsanordnung zur elektronischen Regelung der Drehzahl einer Antriebsvorrichtung
DE2019931A1 (de) * 1970-04-24 1971-11-04 Messerschmitt Boelkow Blohm Einrichtung zur beruehrungslosen Drehzahlmessung eines Drehkopfes
CS164449B1 (fr) * 1972-09-15 1975-11-07
DE2543839B1 (de) * 1975-10-01 1976-11-25 Graf & Co Ag Vorrichtung zum erzeugen eines gleichmaessigen textilen faserbandes
DE2735799A1 (de) * 1977-08-09 1979-02-22 Zinser Textilmaschinen Gmbh Streckwerk fuer spinnereimaschinen
DE2753924C2 (de) * 1977-12-03 1984-02-02 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Antriebseinrichtung für Arbeitsorgane einer Spinnerei- oder Zwirnereimaschine
US4199844A (en) * 1978-04-25 1980-04-29 Platt Saco Lowell Limited Method and means for regulating sliver draft uniformity
DE2911378A1 (de) * 1979-03-23 1980-10-02 Zinser Textilmaschinen Gmbh Ringspinn- oder ringzwirnmaschine
CA1196997A (fr) * 1982-03-09 1985-11-19 Fred N. Chan Dispositif de regulation du regime d'un organe tournant
DD217832B3 (de) * 1983-06-09 1991-03-28 Grossenhainer Textilmaschinenbau Gmbh,De Vorspinnmaschine mit dezentralem antrieb
JPS60119228A (ja) * 1983-12-02 1985-06-26 Howa Mach Ltd 特殊糸の製造装置

Also Published As

Publication number Publication date
DE3900409A1 (de) 1990-07-12
JPH02277835A (ja) 1990-11-14
DE59002771D1 (de) 1993-10-28
US5003668A (en) 1991-04-02
EP0380923A1 (fr) 1990-08-08

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