EP1205588B1 - Dispositif de commande pour des postes de filature d'un métier à filer - Google Patents

Dispositif de commande pour des postes de filature d'un métier à filer Download PDF

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Publication number
EP1205588B1
EP1205588B1 EP01124919A EP01124919A EP1205588B1 EP 1205588 B1 EP1205588 B1 EP 1205588B1 EP 01124919 A EP01124919 A EP 01124919A EP 01124919 A EP01124919 A EP 01124919A EP 1205588 B1 EP1205588 B1 EP 1205588B1
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EP
European Patent Office
Prior art keywords
spinning
yarn
spinning machine
machine according
positions
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.)
Revoked
Application number
EP01124919A
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German (de)
English (en)
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EP1205588A1 (fr
Inventor
Christian Griesshammer
Peter Anderegg
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • 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
    • D01H5/005—Arrangements for feeding or conveying the slivers to the drafting machine
    • 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
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities

Definitions

  • the invention is in the field of spinning technology and relates to a Spinning machine according to the first independent claim. Furthermore, the Invention a spinning arrangement with such a spinning machine.
  • Fiber material in the form of a longitudinal structure e.g. fiber ribbon, sliver or roving
  • a suitable container jug
  • a coil fed a suitable fiber material educated.
  • the actual yarn formation takes place for example by ring spinning, pot spinning, Bell spiders, friction spiders, open rotor spiders, air spiders etc, each Spinning station for the yarn formation and winding of the formed yarn necessary parts of the device.
  • These device parts of all spinning stations are usually via a common drive or a small number of common drives and are for individual spinning positions (thread break, Can change) can be disconnected from this drive.
  • the spinning machine has refinement means, ie means for refinement Stretching such longitudinal structures or means for dissolving such longitudinal structures.
  • the Refiners are typically for all spinning positions or for a number of Spinning stations provided jointly, but can also, like the means for yarn formation be provided per spinning station.
  • Means for refinement before yarn formation by stretching the supplied Longitudinal fiber structures have, for example, three cylinder pairs arranged in series, which are driven in the conveying direction with increasing peripheral speed. Such pairs of cylinders extend, for example, along a series of Spinning stations and are, for example, by appropriate gears from one single drive or there is one for each pair of cylinders (drive function) separate drive provided.
  • drive function drive function
  • Means for refinement before yarn formation by dissolving the supplied Longitudinal fiber structures have, for example, one feed roller for each spinning station Opening roller and the fibers in the dissolved state from the opening roller to Yarn formation leading fiber guide channel.
  • the whole the feed rollers and the entirety of the opening rollers each by a common Drive driven.
  • the yarns formed in the individual spinning positions are, for example, online or periodically monitored by sensors and spinning positions that fail, are decoupled from common drives.
  • the decoupling can only do that Yarn formation or additionally the refinement preceding the yarn formation affect.
  • a plurality of so-called regulating drafting systems are used, in which one A plurality of incoming longitudinal fiber structures (for example from a card or from upstream regulating drafting system) and the fiber mixture is stretched.
  • Mass measurements at the entrance and / or exit of the drafting device Stretch ratio controlled or regulated, in that the speed at least of a pair of cylinders in the drafting system is changed.
  • Such drafting devices obtain the longitudinal fiber structures from storage containers (cans) and lay the produced ones Longitudinal fiber structures also in storage containers from which the Longitudinal fiber structures finally a spinning machine or a spinning station are fed.
  • the management of these storage containers is very complex, especially if it is to be carried out fully automatically. Without automation or with only partial automation is the management of the storage containers labor intensive and prone to errors.
  • the object of the invention is to create a spinning machine, the yarns can produce high regularity with regard to fiber mass per unit length, even if the fiber material fed to the spinning positions is less high Has regularity than for known spinning machines for the same Yarn quality would have to be required.
  • the spinning positions of the spinning machine according to the invention in the sense of a continuous spinning process and if between upstream devices providing the longitudinal fiber structures and Spinning positions, for example, areas with free sag of the fiber longitudinal structures as Buffers are provided, it is also possible to operate within limits set by the Spinning processes and by the formation of the spinning station are predetermined, the performance of the individual spinning positions to the filling level of the buffer or to the performance of the adapt upstream device. To do this, a spinning station as a whole for driven an increase or decrease in their performance.
  • a buffer for one direct connection of a device providing a longitudinal fiber structure and one Spinning station of the buffer machine to be provided according to the spinning machine according to the invention can, for example, connect a card and a draw frame Buffer memory, which is known from the publication WO-99/11847, correspondingly be adjusted.
  • Another advantage of the spinning machine according to the invention is that for the Piecing (after thread break or can change) refining agents and if necessary, yarn forming agents can also go through a piecing cycle is completely independent of other spinning positions and in which the speeds of moving parts, for example, increase continuously. This is the piecing significantly easier than with state-of-the-art machines in which moving parts only when spinning onto one with constant speed running drive can be coupled, resulting in a stepped or leads to at least a very steep increase in the corresponding speeds.
  • sensor means of the spinning machine according to the invention detect each spinning position the mass of fibers in the area of the entrance of the refining agent and the infeed speed becomes the refinement agent by appropriate Control of the refining agent varies accordingly.
  • Applicable control methods are known from regulating drafting systems or cards are usually used as regulation (closed loop control) from the actuator downstream measuring element and / or as a control (open loop control) with realized by the actuator upstream measuring element. Thereby with the Regulation usually compensates for relatively long-wave fluctuations and with that Control of relatively short-wave fluctuations.
  • Fluctuations in the fiber mass are essentially the delay in the spinning station Fiber mass varies, in that the speed of entry of the fiber mass into the Spinning station and / or the speed at which the yarn runs out of the spinning station is controlled or regulated accordingly.
  • the fiber longitudinal structures become the spinning positions advantageously supplied from cans or from coils, so that devices that the Longitudinal fiber structures deliver from fluctuations in the entry speed into the Spinning positions are not affected.
  • Ring spinning, open end and friction spinning processes are less suitable for the above outflow regulation described, since for these processes the yarn properties in only narrow areas are independent of the spinning speed. A wider one Area in which the yarn properties are independent of the spinning speed, still has the pot spinning process. However, this procedure is because of relatively large, rotating masses not very much for a discharge regulation suitable.
  • FIG. 1 shows very schematically a spinning station of an exemplary embodiment of the spinning machine according to the invention.
  • the spinning station has its own drafting device 1 (refining agent 1) with, for example, three cylinder pairs (inlet cylinder 2, middle cylinder 3 with straps 4 and outlet cylinder 5) as internal spinning unit refining means 1.
  • the spinning station has a yarn-forming means 6, which for example consists essentially of a nozzle arrangement 7 and a pair of take-off cylinders 8 for an air spinning process, as well as a yarn winding device 9.
  • a first mass sensor 10 is provided upstream of the inlet cylinders 2 of the drafting device 1, which detects the fiber mass of the longitudinal fiber structure supplied to the drafting device 1.
  • a second mass sensor (so-called yarn cleaner) is provided between the draw-off cylinder pair 8 and the yarn package 9, which detects the fiber mass of the yarn produced.
  • the measurement data generated by the sensors 10 and 11 are fed to a control and monitoring unit 12.
  • Inlet cylinder 2 and middle cylinder 3 of the drafting system 1 are from a first Motor M.1 driven in such a way that the longitudinal fiber structure between them Cylinder pairs experiences a constant advance.
  • the speed of the engine M.1 is variable and is detected by a speed sensor Z.1.
  • the engine M.1 is by means of Control data from the control and monitoring unit 12 based on the measurement data of Sensors 10 and 11 are generated, controlled.
  • Outlet cylinder 5 of the drafting device 1 and take-off cylinder 8 of the yarn forming means 6 are operated by a further motor M.2 driven such that their peripheral speeds are one for the present Have a suitable yarn formation ratio (spinning delay).
  • the speed of this other motor M.2 is detected by the speed sensor Z.2 and with suitable means kept constant.
  • the stretching arrangement according to FIG. 1 essentially corresponds to an arrangement such as it is known per se from regulating drafting systems.
  • the control and monitoring unit 12 processes the measurement data of the in a manner known per se from regulating drafting systems Sensors 10 and 11 to control signals based on the speed of the first motor M.1 is regulated. This will result in a suitable delay due to the Sensor 10 detected irregularities in the fiber mass compensated by Variation of the inlet speed (inlet cylinder) and variation of the warpage between central cylinders 3 and outlet cylinders 5 (variable draft 20).
  • This control can be used to correct short-wave irregularities in particular be evened out. Irregularities in fiber mass from downstream sensor 11 on the finished yarn are detected in processed in the same way, this being a regulation that can not even out short-wave irregularities.
  • the spinning station shown in FIG. 1 thus has a controlled in a known manner or regulated drafting system, the infeed speed being varied and the The outlet speed is constant, that is, the yarn formation with constant Delivery speed can be operated.
  • the outlet speed is constant, that is, the yarn formation with constant Delivery speed can be operated.
  • a spinning machine therefore has a large number (for example two hundred) spinning stations, all of which are equipped, such as those in the Figure 1 shown spinning station.
  • the M.2 can be connected to the other motor All or a plurality of the spinning stations can be coupled and also the Control and monitoring unit 12 can be the entirety of the spinning stations or one Serve majority of them. At least those are assigned to each spinning station individually Pairs of inlet cylinders 2 and middle cylinders 3 of the drafting system, the sensors 10 and 11 and the first motor M.1 or a stepless replacement for this motor controllable gear between a central drive and each spinning station.
  • the fiber longitudinal structures from the spinning positions Supply containers fed.
  • a direct and continuous feed for example from a card or from a draw frame is only possible if between the Spinning station and the upstream device a buffer with a sufficiently large Buffer capacity is arranged with which buffer variations in the Infeed speed can be bridged into the drafting system without that the upstream device must be controlled accordingly.
  • a Buffer can simply be designed as a free sag of the longitudinal fiber structure, which sag is monitored by sensors.
  • the spinning station When exceeding a lower or upper limit of the buffer capacity, the spinning station is stopped or a Upstream device (card, drafting system) controlled accordingly, so that Delivery speed to the fill level of the buffer and / or to the Infeed speed in the spinning station internal drafting system is adjusted.
  • a Upstream device card, drafting system
  • a stretching controlled internally according to FIG. 1 and constant Yarn formation is particularly applicable for spinning processes for which a change the delivery speed of the yarn formation a change in the yarn properties would require or for which a relatively rapid change in delivery speed yarn formation is not possible for mechanical reasons.
  • Such spinning processes are for various reasons, as already mentioned above, for example Ring spinning process, friction spinning process, pot spinning process, Bell spinning process and open-end rotor spinning process.
  • FIG. 2 again shows a spinning station with a drafting unit 1 internal to the spinning station and yarn-forming means 6 for a spinning machine according to the invention, as shown in FIG.
  • the same parts are labeled with the same reference numbers.
  • the first motor M.1 is operated at a constant speed and the further motor M.2 is controlled accordingly.
  • irregularities with regard to fiber mass which are detected by sensors 10 and 11, are compensated for by varying the outlet speed (outlet cylinder 5) from the drafting system, which requires corresponding variations in the delivery speeds of the yarn-forming agent 6.
  • a control / regulation of the spinning positions of an inventive Spinning machine with spinning stations according to Figure 2 is particularly suitable for one direct and continuous feeding of fiber longitudinal structures to the spinning stations and for Spinning process, the delivery speed without influencing the Yarn properties are variable over a relatively wide range.
  • Such spinning processes are, as already mentioned above, in particular air spinning processes. Since the Infeed speed to the spinning unit-internal drafting system can be constant buffering before this entry or at least to a large buffer capacity to be dispensed with.
  • FIG. 3 shows a spinning station for a spinning machine according to the invention, in which spinning station the control / regulation according to FIGS. 1 and 2 are essentially combined. While the motors M.1 and M.2 have variable speeds and are controlled by the control and monitoring unit 12, only the middle cylinder pair 3 is operated by a third motor M.3 at a constant speed. This results in two places of variable delay 20 and 20 '. For such control / regulation of the spinning stations, limit values must be specified for the first variable warping, the second variable warping, the spinning speed, further spinning parameters and, if appropriate, for buffer capacities upstream of the drafting unit 1. The operation of each spinning station must be kept or set within the specified limits, if it is not possible to operate without crossing borders.
  • the control unit can also control the delivery speed of a device (card or drafting device) upstream of the spinning machine, which supplies several spinning stations directly and continuously with fiber material, in such a way that the capacity is optimally utilized, i.e. the upstream device and the spinning stations are operated in this way ( or not operated for spinning positions) that the output of yarn is maximum.
  • a device card or drafting device
  • the control unit can also control the delivery speed of a device (card or drafting device) upstream of the spinning machine, which supplies several spinning stations directly and continuously with fiber material, in such a way that the capacity is optimally utilized, i.e. the upstream device and the spinning stations are operated in this way ( or not operated for spinning positions) that the output of yarn is maximum.
  • the spinning station instead of the preliminary delay (position variable Delay 20 ') or in addition also the spinning delay (variable delay 20 ") be included in the control.
  • the spinning station according to FIG. 3 is also suitable for a performance variation of the Spinning station as a whole to adapt this performance to the delivery performance of a upstream device or device providing the longitudinal fiber structure to be spun to spin on.
  • FIG. 4 again shows a spinning station with a spreader-internal drafting system 1 for a spinning machine according to the invention, as is already shown in FIGS. 1 to 3.
  • the sensors 10 for a control and 11 for a long-wave control there are further possible sensor positions 10.1 (between the inlet cylinder 2 and the center cylinder 3 for a control), 11.1 (between the center cylinder 2 and the outlet cylinder 5, immediately after the variable draft 20, for a relatively short-wave control) and 11.2 and 11.3 (between outlet cylinder 5 and nozzle arrangement 7 and between nozzle arrangement 7 and discharge cylinder 8, both for regulation).
  • the measurement data from sensor positions 10 and 10.1 upstream of the variable draft 20
  • the measurement data from sensor positions 11, 11.1, 11.2 and 11.3 are used for draft regulation.
  • each spinning position of the spinning machine according to the invention Arrange mass sensor, as already mentioned in connection with Figure 1 advantageously two, one upstream and one downstream of the Variable delay 20 is to be arranged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (16)

  1. Machine à filer possédant une pluralité de postes de filage, ayant chacun un moyen de formation de fil (6), à l'aide duquel une matière fibreuse, qui est alimentée au poste de filage sous forme d'un ensemble longitudinal, est traitée par filage en un fil, et ayant chacun un moyen d'affinage (1), à l'aide duquel l'ensemble de fibres formé longitudinalement, alimenté au poste de filage, est affiné avant la formation du fil, et où le moyen d'affinage (1) de chaque poste de filage peut être entraíné et commandé indépendamment des moyens d'affinage (1) des autres postes de filage, et où chaque poste de filage possède au moins un moyen détecteur (10, 11) pour détecter au moins une caractéristique en corrélation avec la masse de fibres par unité de longueur de la matière fibreuse alimentée au poste de filage ou traitée, et/ou du fil formé dans le poste de filage, et que, pour une égalisation des irrégularités relatives à la masse de fibres par unité de longueur de la matière fibreuse alimentée à chaque poste de filage, la machine à filer possède, en outre, au moins une unité de commande et de contrôle (12) qui transforme les données de mesure produites par les moyens détecteurs (10, 11) d'un poste de filage, en données de commande, pour la commande du moyen d'affinage (1) du même poste de filage,
    caractérisée par le fait que
    le moyen de formation de fil (6) travaille selon le procédé de filage Vortex, et que le moyen de formation de fil (6) est entièrement indépendant des autres postes de filage.
  2. Machine à filer selon revendication 1,
    caractérisée par le fait qu'une partie (2, 30), côté entrée, du moyen d'affinage (1) de chaque poste de filage peut être entraínée et commandée indépendamment des autres postes de filage, alors que la partie (5, 31), côté sortie, du moyen d'affinage et le moyen de formation de fil (6) sont entraínés avec des paramètres de fonctionnement essentiellement constants.
  3. Machine à filer selon revendication 1,
    caractérisée par le fait qu'une partie (5), côté sortie, du moyen d'affinage (1) de chaque poste de filage peut être entraínée et commandée indépendamment, alors qu'une partie (2, 30), côté entrée, du moyen d'affinage (1) est entraínée avec des paramètres de fonctionnement essentiellement constants.
  4. Machine à filer selon revendication 1,
    caractérisée par le fait que,
    aussi bien une partie (2, 30), côté entrée, du moyen d'affinage (1, 1') qu'une partie (5, 31), côté sortie, du moyen d'affinage (1, 1') et/ou le moyen de formation de fil (6, 7) peuvent être entraínés et commandés indépendamment des autres postes de filage.
  5. Machine à filer selon l'une des revendications 3 ou 4,
    caractérisée par le fait que,
    pour un procédé d'aéro-filage, le moyen de formation de fil (6) est équipé d'un dispositif de buses (7), avec alimentation en fluide et une paire de cylindres d'extraction (8), et où un entraínement (M.2) de la paire de cylindres d'extraction (8) et l'alimentation en fluide vers le dispositif de buses (7) peuvent être commandés et variés.
  6. Machine à filer selon l'une des revendications 1 à 5,
    caractérisée par le fait que
    le moyen d'affinage (1) est un moyen servant à étirer ou un moyen servant à désagréger l'ensemble de fibres formé longitudinalement, alimenté au poste de filage.
  7. Machine à filer selon revendication 6,
    caractérisée par le fait que
    le moyen d'affinage (1) est un train d'étirage avec une paire de rouleaux d'entrée (2) et une paire de rouleaux de sortie (5), et que la paire de rouleaux d'entrée (2) et/ou la paire de rouleaux de sortie (5) peuvent être entraínées et commandées indépendamment des autres postes de filage.
  8. Machine à filer selon revendication 6,
    caractérisée par le fait que
    le moyen d'affinage (1') possède un rouleau d'alimentation (30), un rouleau ouvreur (31) et un canal de guidage de fibres (32) guidant les fibres dans le moyen de formation de fil, et que le rouleau d'alimentation (30) et/ou le moyen de formation de fil (6) peuvent être entraínés et commandés indépendamment des autres postes de filage.
  9. Machine à filer selon l'une des revendications 1 à 8,
    caractérisée par le fait que
    les moyens détecteurs (10, 11) sont disposés dans la zone de l'entrée de l'ensemble de fibres formé longitudinalement, dans le moyen d'affinage (1) et/ou dans une zone située en aval du moyen de formation de fil (6).
  10. Machine à filer selon l'une des revendications 1 à 9,
    caractérisée par le fait que
    la, au moins une unité de commande et de contrôle (12) est équipée pour optimiser la production de la machine à filer.
  11. Machine à filer selon l'une des revendications 1 à 9,
    caractérisée par le fait que
    la, au moins une unité de commande et de contrôle (12) est équipée pour la commande d'un cycle d'amorçage de filage.
  12. Machine à filer selon l'une des revendications 1 à 11,
    caractérisée par le fait que
    la, au moins une unité de commande et de contrôle est équipée pour la commande des variations de puissance par poste de filage complet.
  13. Agencement de filature avec une machine à filer selon revendication 2 ou 4, agencement qui possède des récipients de réserve, à partir desquels des ensembles de fibres formés longitudinalement sont dirigés vers les postes de filage.
  14. Agencement de filature avec une machine à filer selon revendication 3 ou 4, agencement qui possède au moins un dispositif situé en amont de la machine à filer, à partir duquel des ensembles de fibres formés longitudinalement sont dirigés directement et continuellement vers les postes de filage de la machine à filer.
  15. Agencement de filature selon revendication 14,
    caractérisé par le fait que
    le, au moins un dispositif, disposé en amont de la machine à filer, est une carde ou un train d'étirage régulateur.
  16. Agencement de filature selon l'une des revendications 14 ou 15,
    caractérisé par le fait que
    des moyens tampon sont prévus pour l'emmagasinage des ensembles de fibres formés longitudinalement, entre le, au moins un dispositif situé en amont de la machine à filer et les postes de filage.
EP01124919A 2000-11-08 2001-10-19 Dispositif de commande pour des postes de filature d'un métier à filer Revoked EP1205588B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH21742000 2000-11-08
CH21742000 2000-11-08

Publications (2)

Publication Number Publication Date
EP1205588A1 EP1205588A1 (fr) 2002-05-15
EP1205588B1 true EP1205588B1 (fr) 2004-12-15

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EP01124919A Revoked EP1205588B1 (fr) 2000-11-08 2001-10-19 Dispositif de commande pour des postes de filature d'un métier à filer

Country Status (4)

Country Link
US (1) US6679043B2 (fr)
EP (1) EP1205588B1 (fr)
AT (1) ATE284987T1 (fr)
DE (1) DE50104822D1 (fr)

Cited By (3)

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US7464530B2 (en) 2004-10-15 2008-12-16 Maschinenfabrik Rieter Ag Process for preparing a piecing operation in an air jet spinning arrangement
US7516606B2 (en) 2004-11-02 2009-04-14 Maschinenfabrik Rieter Ag Process for optimizing the production performance of a spinning machine
CZ306608B6 (cs) * 2004-10-22 2017-03-29 VĂšTS, a.s. Způsob měření tažnosti přízí a podobných délkových útvarů a zařízení k provádění způsobu

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EP1219737B2 (fr) † 2000-12-22 2012-01-18 Maschinenfabrik Rieter Ag Procédé pour rabouter ou mettre en place un fil crée dans une unité de filature, ladite unité étant equipée pour la mise en oeuvre du procédé
EP1375709B1 (fr) 2002-06-21 2014-08-06 Maschinenfabrik Rieter Ag Procédé de rattache pour, ou rattachement dans, des postes de filature des métiers à filer à vortex d'air
EP1398402A3 (fr) 2002-09-16 2004-09-01 Maschinenfabrik Rieter Ag Métiers à filer à vortex d'air avec des moteurs à réluctance
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ITTO20110693A1 (it) * 2010-08-11 2011-10-27 Rieter Ingolstadt Gmbh Meccanismo di stiratura di una macchina tessile nonche' procedimento per il suo funzionamento

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DE19542599A1 (de) * 1995-11-15 1997-05-22 Schlafhorst & Co W Transportsystem für Faserband
DE19640691B4 (de) * 1996-10-02 2007-04-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine mit einem Streckwerk für Fasermaterial
WO1999011847A1 (fr) 1997-09-01 1999-03-11 Maschinenfabrik Rieter Ag Banc d'etirage regule
DE59903261D1 (de) 1998-06-12 2002-12-05 Rieter Ag Maschf Regulierstreckwerk
AU2001283761A1 (en) 2000-09-22 2002-04-02 Maschinenfabrik Rieter A.G. Spinning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464530B2 (en) 2004-10-15 2008-12-16 Maschinenfabrik Rieter Ag Process for preparing a piecing operation in an air jet spinning arrangement
CZ306608B6 (cs) * 2004-10-22 2017-03-29 VĂšTS, a.s. Způsob měření tažnosti přízí a podobných délkových útvarů a zařízení k provádění způsobu
US7516606B2 (en) 2004-11-02 2009-04-14 Maschinenfabrik Rieter Ag Process for optimizing the production performance of a spinning machine

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ATE284987T1 (de) 2005-01-15
US20020124545A1 (en) 2002-09-12
EP1205588A1 (fr) 2002-05-15
US6679043B2 (en) 2004-01-20
DE50104822D1 (de) 2005-01-20

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