EP1893794A2 - Method for monitoring a yarn transforming process - Google Patents

Method for monitoring a yarn transforming process

Info

Publication number
EP1893794A2
EP1893794A2 EP06778950A EP06778950A EP1893794A2 EP 1893794 A2 EP1893794 A2 EP 1893794A2 EP 06778950 A EP06778950 A EP 06778950A EP 06778950 A EP06778950 A EP 06778950A EP 1893794 A2 EP1893794 A2 EP 1893794A2
Authority
EP
European Patent Office
Prior art keywords
speed
wire
spindle
representative
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06778950A
Other languages
German (de)
French (fr)
Inventor
Christophe Vega
Florent Beauducel
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.)
RITM
Original Assignee
RITM
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 RITM filed Critical RITM
Publication of EP1893794A2 publication Critical patent/EP1893794A2/en
Withdrawn legal-status Critical Current

Links

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
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D01H1/105—Arrangements using hollow spindles, i.e. the yarns are running through the spindle of the unwound bobbins
    • D01H1/106—Two-for-one twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/082—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined size or diameter of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/086—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to completion of unwinding of a package
    • 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
    • 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
    • D01H1/28—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association
    • D01H1/30—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association with two or more speeds; with variable-speed arrangements
    • 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
    • D01H13/10—Tension devices
    • 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
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • D01H13/106—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices for double-twist spindle
    • 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
    • D01H13/32—Counting, measuring, recording or registering devices
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to the technical field of the transformation of continuous elongated materials, especially textile yarns, which will be referred to hereinafter as "yarn", such as, for example, twisting, single, double or multiple twisting methods.
  • the invention relates to processing methods which consists of unwinding the wire of a food reel, passing it through a spindle which gives it a twist on itself, while being called by a member placed downstream, for example by a delivery and / or a receiving winding system, or by another method of transformation.
  • the set of means of unwinding, twisting, delivery, winding system is a unit of transformation, which will be referred to in the following as "working position", each working position being independent or associated with other positions adjacent work areas.
  • the transformation process is limited by the unwinding conditions of the food reel or reels.
  • the diameter of the coil decreases as unwinding, which affects the unwinding conditions of the wire on the periphery of the coil.
  • the rotation of the unwinding point around the coil that is to say the point where the wire leaves the periphery of the coil, accelerates as and when the coil diameter decreases, which increases for example the emptying voltages, the irregularity of these voltages, as well as the twisting of the wire on itself due to this rotation. This influence can affect the quality of the transformation process and / or limit its performance.
  • a spool (2) formed of a winding of a thread (1) around a hollow mandrel, is placed in a support (3) itself supported by the axis of a spindle (4).
  • This support (3) is secured coaxially with the axis of the spindle (4) by means such as ball bearings, and is prevented from rotating on itself by means of restraining means acting by gravity, or by force magnetic or mechanical, so that the coil (2) and its support (3) do not rotate.
  • the thread (1) unwound from the spool (2) is introduced into a channel formed in the axis of the spindle (4), and emerges through a hole (5) opening radially in a cylindrical or conical zone called reserve (6) disposed below the support of the coil (3).
  • the wire is wound a few fractions of turns on the reserve (6) and then forms an arc bypassing the coil (2) and its support (3), to join a fixed wire guide (7), before being towed by downstream members (8, 9) according to a given speed V (calling speed).
  • V calling speed
  • the downstream members consist of a pre-call member (8) for lowering the tension of the thread and a positive calling member (9), the latter guaranteeing the speed V.
  • the thread (1) rotates around the spool (2) and its support (3) forming a "balloon".
  • the rotation causes a first twist of the wire on itself between the input of the pin and its radial orifice (5) and a second twist of the wire on itself between the radial orifice (5) and the fixed wire guide (5). 7).
  • the spindle rotates at N revolutions / min and if the wire is towed at V meters / min, at each minute the wire receives 2 N torsions distributed over V meters, ie 2N / V twists per meter.
  • the stability of the process is based on the equilibrium between the tension due to the centrifugal force created by the rotation of the balloon, and the retaining force of the thread between the spool and said balloon. This retaining force is distributed between the emptying forces, the friction of the wire in the winding on the reserve and auxiliary braking means.
  • the coronel is formed of an arm (10) rotatable freely about the axis of the spindle (4) and carrying a wire guide (11) at its end.
  • the wire (1) passes through the wire guide (11), which has the effect of eliminating the friction of the wire along the periphery and the side of the coil.
  • the "coronel" (10) rotates at the same time as the wire (1) to accompany it in its unwinding, this rotation being generally braked by a friction device, magnetic or otherwise, providing a couple resistor designed to generate the braking force necessary for the equilibrium of the process.
  • the speed of production is limited so that the speed of rotation of the coronel and / or the voltages generated by the unwinding remain below acceptable values, observing that this speed or these limit voltages are only reached. at the end of unwinding the food roll.
  • the method of controlling the process consists of changing the unwinding speed and, in a coordinated manner, the other associated parameters of the conversion process as a function of a quantity representative of the quantity of wire remaining wound on at least one of the coils, so that the production speed remains below the limits imposed by the unwinding conditions on said reel.
  • the quantity representative of the amount of wire remaining wound on a reel may be its diameter, its weight, its mass, the length of wire wound on the reel or any other size, which can be obtained, for example by :
  • a quantity deduced from a value initialized at the beginning of the unwinding (full spool), and decremented as a function of time according to a preprogrammed law, or as a function of a quantity representative of the evolution of this quantity; a quantity deduced from a value initialized at the beginning of the unwinding (full bobbin), and decremented as a function of the measurement and / or calculation of the amount of thread unwound, or as a function of a quantity representative of the unwinding speed .
  • all the devices used for the transformation of a wire constitute an autonomous working position, it is at to say that these members are controlled individually by independent means, so that the parameters of the transformation process can be changed according to a quantity representative of the quantity of wire remaining wound on at least one of the coils implemented in this working position regardless of the state of the adjacent working positions.
  • the method of controlling the process consists of:
  • the law of evolution of the speed of rotation of the spindle (and proportionally the speed of traction) as a function of the amount of thread remaining wound on the spool has a zone sensitive constant between the initial quantity of the full bobbin and an intermediate amount, and a substantially decreasing zone between said intermediate amount and the minimum amount (or zero) at the end of unwinding.
  • Another problem to be solved by the invention is to compensate for the twist variation of the wire resulting from the acceleration of the rotation of the unwinding point around the coil as its diameter decreases.
  • the speed of rotation of the spindle and the speed of traction of the yarn are controlled by one or more operators independent of those of the adjacent positions, by changing the speed of rotation of the spindle. and the speeds of the call members as a function of a magnitude representative of the amount of wire remaining wound on the supply reel in a variable ratio, thereby giving the wire a twist per variable meter, as a function of said magnitude representative of the amount of wire remaining on the supply reel, so as to compensate for the variations in torsion per meter induced by the reeling according to said diameter.
  • the speed of rotation of the spindle and the speed of traction of the yarn are controlled by one or more operators that are independent of those of the adjacent positions, by changing the speed of rotation of the spindle and the speeds of the members. call based on a magnitude representative of the amount of wire remaining on the supply reel in a variable ratio, thus giving the wire a twist per variable meter, and a scaling law according to said magnitude representative of the amount of wire remaining on the feed reel, to compensate for torsional variations per meter induced by the unwinding or winding operations of the torsion process or upstream or downstream processing processes.
  • FIG. 1 is a schematic view of a double twist process, according to the state of the art.
  • FIG. 2 shows a diagram illustrating the production speed limits as reeling of the reel, according to the prior art.
  • FIG. 3 shows a diagram illustrating the production speed limits as and reel of the reel, according to the invention.
  • FIG. 4 is a schematic view of an embodiment of the invention applied to the double twist process.
  • the invention is presented here in detail in its application to the double twist process.
  • This application example is in no way limiting, other applications that can be envisaged in single twist, multiple twist, direct wiring, wrapping. More generally, the invention applies to any son transformation method, at least one of which is unwound from at least one coil by means of a coronel, in which the evolution of the amount of wire remaining wound on at least one of the feed bobbins (or the diameter of said bobbin) leads to unwinding conditions that affect the quality or performance of the processing process.
  • any son transformation method at least one of which is unwound from at least one coil by means of a coronel, in which the evolution of the amount of wire remaining wound on at least one of the feed bobbins (or the diameter of said bobbin) leads to unwinding conditions that affect the quality or performance of the processing process.
  • the time (t) is plotted on the abscissa and the speed (V) of production is plotted on the ordinate.
  • the speed (V) represents, indistinctly (to a factor of proportion) the spindle speed or the speed of call since, to obtain a given twist, these two speeds are linked by a fixed ratio.
  • the coil (2) is full (its outside diameter is maximum). As the production progresses, the diameter of the reel (2) decreases, until the end of the production (21) where it reaches its final value (which is generally close to or equal to the diameter empty coil).
  • the production speed (V) is limited by the centrifugal forces generated by the rotation of the balloon.
  • the centrifugal force tends to increase the diameter of the balloon and the tensions in the wire (1). It is therefore necessary to limit the speed of rotation to stay within a diameter corresponding to the available space (including the spacing between adjacent pins). It will also limit the speed of rotation to stay below acceptable voltages by the wire (to prevent it from breaking and not affect its resistance by subjecting it to too high stresses).
  • This limit depends on the nature and the title of the wire, as well as the geometry of the device. It does not depend on the diameter of the food roll (2) and is therefore substantially constant as a function of time. This speed limit is represented by the line (22).
  • the speed of production is also limited by the speed of rotation of the emptying point, for example because of the evolution of the forces resulting from the unwinding which, for a given speed of call, increase as the diameter of the coil (2) decreases.
  • the allowable production speed here corresponding to the call speed
  • This speed limit is represented by the line (23).
  • the curve of the speed limit due to unwinding (23) can remain above the speed limit (22) due to the rotation of the balloon during the entire duration between the start (20) and the end (21) of production.
  • the curve of the speed limit due to unwinding (23) falls below the limit due to the rotation of the balloon (22) from a point ( 24) corresponding to a certain amount of wire remaining wound on the coil (2).
  • a constant speed limit (25) that is to say below the curve (23) at the end (21) of production ( Figure 2).
  • control method of the method consists in: controlling the rotational speed of the spindle (4) and the speed of the traction means of the thread (8, 9) by one or more actuators (12). , 13, 14 ...), independent of those of the adjacent positions, in a constant speed ratio, so as to give the wire one twist per constant meter;
  • control of the spindle (4) and the traction means (8, 9 7) have individual drives (12, 13, 14 ... ) controlled by variable speed drives (15, 16, 17), each receiving a set of a calculation unit (18), such as an electronic card, a PLC or other.
  • a calculation unit (18) such as an electronic card, a PLC or other.
  • the information representative of the amount of wire remaining wound on the reel (2) is communicated to the calculation unit (18) which modifies the speed instructions according to laws of variation as a function of said quantity.
  • the evolution law (26) of the speed of rotation of the spindle, (and proportionally the pulling speed), as a function of the quantity of thread remaining wound on the spool (2 ) has a constant sensing area between the start of production (20) and the initial quantity of the solid coil and an intermediate quantity (24) and a substantially decreasing zone between said intermediate quantity (24) and the minimum quantity (or zero ) at the end of emptying (21).
  • the method of conducting the method consists of: - To control the speed of rotation of the spindle (4) and the pulling speed of the wire (8, 9 %) by one or more actuators (12, 13, 14 ...) independent of those of the adjacent positions, by changing the speed of rotation of the spindle (4) and the speeds of the call elements (8, 9 %) according to a quantity representative of the amount of wire remaining wound on the supply reel ( 2) in a variable ratio, thus conferring on the yarn a twist per variable meter, so as to compensate for the variations in torsions per meter induced on the yarn by the unwinding according to said diameter.
  • such compensation consists in establishing a law of evolution of the ratio between the speed of call and the spindle speed in order to compensate for the variations of torsions induced by all the phases of winding, feeding and transformation upstream. or downstream of the twisting process.
  • the method of conducting the method comprises:
  • the quantity representative of the amount of wire remaining wound on the coil (2) can be, for example:
  • a direct or indirect measurement of said diameter of the coil (2) can be performed for example by optical means, ultrasound or other means.
  • the measurement can be continuous or discrete, ie detecting the passage through one or more intermediate diameters, for example, by electric cells whose beam is cut when the coil reaches the said intermediate diameter or diameters.
  • a direct or indirect measurement of the weight of the coil can be made by measuring the weight of the bobbin alone, or with its support, or even by monitoring the weight of the complete spindle.
  • the measuring means mentioned above may be disposed outside said support and the balloon formed by the wire. They can also be embedded with the coil (2) or its support (3) inside said balloon, in which case, the information can be transmitted by any infrared, radiofrequency or other means ...
  • the magnitude representative of the amount of wire remaining wound on the coil (2) can also be developed by calculation, from information representative of the evolution of this quantity. For example, for a given production speed, this amount of yarn on the feed roll decreases because of the weight or length taken per unit of time.
  • the amount of wire remaining wound on the reel and therefore the evolution of its weight and / or its diameter can be calculated from, for example:
  • the calculation can be performed in the computer (18) or by any other external means and communicated to the latter, for example by a network (19).
  • the development of the magnitude representative of the amount of wire remaining wound on the coil, the calculation of the production speed and its transmission to the organ control means, in particular the pin (4) and the call system (8, 9 7) can be made by any appropriate means such as computers (18) or electronic circuits, a PLC or other associated with sensors, counting systems, etc ...
  • the invention can be applied for machines equipped with collective motorization means. It provides a great advantage for machines consisting of autonomous working positions, that is to say equipped with individual motorization means. Indeed, each working position is controlled to obtain the optimal production speed, depending on the unwinding state of its own coil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention concerns a method wherein at least one yarn is unwound from at least one bobbin (2) by means of a baulk (10). The unwinding speed is developed and, in co-ordination, the other related parameters of the transformation process, based on a quantity representing the amount of yarn still wound on at least one of the bobbins (2), so that said unwinding speed remains within the limits imposed by the unwinding conditions.

Description

METHODE DE PILOTAGE D'UN PROCEDE DE TRANSFORMATION DE FILS METHOD FOR CONTROLLING A PROCESS FOR TRANSFORMING WIRES
L'invention concerne le domaine technique de la transformation des matières allongées continues, notamment des fils textiles, que l'on désignera dans ce qui suit par « fil », tel par exemple des procédés de retordage, de torsion simple, double ou multiple.The invention relates to the technical field of the transformation of continuous elongated materials, especially textile yarns, which will be referred to hereinafter as "yarn", such as, for example, twisting, single, double or multiple twisting methods.
Plus particulièrement, l'invention concerne les procédés de transformation qui consiste à dévider le fil d'une bobine alimentaire, le faire passer dans une broche qui lui confère une torsion sur lui-même, tout en étant appelé par un organe placé en aval, par exemple par un délivreur et/ou un système de bobinage de réception, ou encore par un autre procédé de transformation. L'ensemble des moyens de dévidage, torsion, délivreur, système de bobinage constitue une unité de transformation, que l'on désignera dans ce qui suit par « position de travail », chaque position de travail étant indépendante ou associée à d'autres positions de travail adjacentes.More particularly, the invention relates to processing methods which consists of unwinding the wire of a food reel, passing it through a spindle which gives it a twist on itself, while being called by a member placed downstream, for example by a delivery and / or a receiving winding system, or by another method of transformation. The set of means of unwinding, twisting, delivery, winding system is a unit of transformation, which will be referred to in the following as "working position", each working position being independent or associated with other positions adjacent work areas.
Dans certains cas, le procédé de transformation est limité par les conditions de dévidage de la ou des bobines alimentaires. D'une manière générale, le diamètre de la bobine diminue au fur et à mesure du dévidage, ce qui affecte les conditions de dévidement du fil sur la périphérie de la bobine. En effet, pour une vitesse d'appel donnée, la rotation du point de dévidage autour de la bobine, c'est-à-dire le point où le fil quitte la périphérie de la bobine, s'accélère au fur et à mesure que le diamètre de bobine diminue, ce qui augmente par exemple les tensions de dé vidage, l'irrégularité de ces tensions, ainsi que la torsion du fil sur lui-même due à cette rotation. Cette influence peut affecter la qualité du processus de transformation et/ou en limiter la performance.In some cases, the transformation process is limited by the unwinding conditions of the food reel or reels. In general, the diameter of the coil decreases as unwinding, which affects the unwinding conditions of the wire on the periphery of the coil. Indeed, for a given speed of call, the rotation of the unwinding point around the coil, that is to say the point where the wire leaves the periphery of the coil, accelerates as and when the coil diameter decreases, which increases for example the emptying voltages, the irregularity of these voltages, as well as the twisting of the wire on itself due to this rotation. This influence can affect the quality of the transformation process and / or limit its performance.
Une telle influence est particulièrement importante pour les procédés de torsion multiple, notamment pour les procédés de double torsion. On se reporte à la figure 1 pour en comprendre le principe que l'on rappelle ici, et qui est connu par l'homme de métier.Such an influence is particularly important for multiple torsion processes, especially for double twist processes. Referring to Figure 1 to understand the principle that is recalled here, and which is known to those skilled in the art.
Une bobine alimentaire (2), formée d'un enroulement d'un fil (1) autour d'un mandrin creux, est placée dans un support (3) lui-même supporté par l'axe d'une broche (4). Ce support (3) est assujetti coaxialement à l'axe de la broche (4) par un moyen tel des roulements à bille, et il est empêché de tourner sur lui-même par un moyen de retenue agissant par gravité, ou par une force magnétique ou mécanique, de sorte que la bobine (2) et son support (3) ne tournent pas.A spool (2), formed of a winding of a thread (1) around a hollow mandrel, is placed in a support (3) itself supported by the axis of a spindle (4). This support (3) is secured coaxially with the axis of the spindle (4) by means such as ball bearings, and is prevented from rotating on itself by means of restraining means acting by gravity, or by force magnetic or mechanical, so that the coil (2) and its support (3) do not rotate.
Le fil (1) dévidé de la bobine (2) est introduit dans un canal pratiqué dans l'axe de la broche (4), et ressort par un orifice (5) débouchant radialement dans une zone cylindrique ou conique appelé réserve (6) disposé au dessous du support de la bobine (3). Le fil s'enroule de quelques fractions de tours sur la réserve (6) puis forme un arc contournant la bobine (2) et son support (3), pour rejoindre un guide fil fixe (7), avant d'être tracté par des organes en aval (8, 9) selon une vitesse donnée V (vitesse d'appel). Souvent les organes en aval sont constitués d'un organe de pré-appel (8), destiné à abaisser la tension du fil et un organe d'appel positif (9), ce dernier garantissant la vitesse V. Grâce à la rotation de la broche (4), le fil (1) tourne autour de la bobine (2) et son support (3) en formant un « ballon ». La rotation provoque une première torsion du fil sur lui-même entre l'entrée de la broche et son orifice radial (5) et une deuxième torsion du fil sur lui-même entre l'orifice radial (5) et le guide fil fixe (7). Ainsi, si la broche tourne à N Tours /mn et si le fil est tracté à V mètres / mn, à chaque minute le fil reçoit 2 N torsions réparties sur V mètres, soit 2N / V torsions par mètre.The thread (1) unwound from the spool (2) is introduced into a channel formed in the axis of the spindle (4), and emerges through a hole (5) opening radially in a cylindrical or conical zone called reserve (6) disposed below the support of the coil (3). The wire is wound a few fractions of turns on the reserve (6) and then forms an arc bypassing the coil (2) and its support (3), to join a fixed wire guide (7), before being towed by downstream members (8, 9) according to a given speed V (calling speed). Often the downstream members consist of a pre-call member (8) for lowering the tension of the thread and a positive calling member (9), the latter guaranteeing the speed V. Thanks to the rotation of the spindle (4), the thread (1) rotates around the spool (2) and its support (3) forming a "balloon". The rotation causes a first twist of the wire on itself between the input of the pin and its radial orifice (5) and a second twist of the wire on itself between the radial orifice (5) and the fixed wire guide (5). 7). Thus, if the spindle rotates at N revolutions / min and if the wire is towed at V meters / min, at each minute the wire receives 2 N torsions distributed over V meters, ie 2N / V twists per meter.
La stabilité du procédé repose sur l'équilibre entre la tension due à la force centrifuge créée par la rotation du ballon, et la force de retenue du fil entre la bobine alimentaire et ledit ballon. Cette force de retenue est répartie entre les forces de dé vidage, la friction du fil dans l'enroulement sur la réserve et un moyen de freinage auxiliaire.The stability of the process is based on the equilibrium between the tension due to the centrifugal force created by the rotation of the balloon, and the retaining force of the thread between the spool and said balloon. This retaining force is distributed between the emptying forces, the friction of the wire in the winding on the reserve and auxiliary braking means.
Lorsque le dévidage est assuré à l'aide d'un dispositif appelé par l'homme de métier « coronelle », l'expérience montre que les forces engendrées par le dévidage de la bobine sont principalement liées à la rotation du fil se dévidant entre le pourtour de la bobine et l'axe de la broche et ont tendance, pour une vitesse d'appel donnée, à progresser au fur et à mesure que la bobine se vide, c'est à dire que son diamètre extérieur diminue.When the reeling is provided by means of a device called by the skilled person "coronelle", experience shows that the forces generated by the unwinding of the reel are mainly related to the rotation of the wire unwinding between the around the spool and the axis of the spindle and tend, for a given speed of call, to progress as the coil is empty, that is to say that its outer diameter decreases.
. Comme le montre la figure 1, la coronelle est formée d'un bras (10) apte à tourner librement autour de l'axe de la broche (4) et portant un guide fil (11) en son extrémité. Le fil (1) passe par le guide fil (11), ce qui a pour effet de supprimer la friction du fil le long du pourtour et du flanc de la bobine. La « coronelle » (10) tourne en même temps que le fil (1) pour l'accompagner dans son dévidement, cette rotation étant généralement freinée par un dispositif de friction, magnétique ou autre, fournissant un couple résistant destiné à générer la force de freinage nécessaire à l'équilibre du procédé.. As shown in Figure 1, the coronel is formed of an arm (10) rotatable freely about the axis of the spindle (4) and carrying a wire guide (11) at its end. The wire (1) passes through the wire guide (11), which has the effect of eliminating the friction of the wire along the periphery and the side of the coil. The "coronel" (10) rotates at the same time as the wire (1) to accompany it in its unwinding, this rotation being generally braked by a friction device, magnetic or otherwise, providing a couple resistor designed to generate the braking force necessary for the equilibrium of the process.
Or, pour un couple résistant donné, la tension du fil nécessaire à faire tourner la coronelle (10) augmente au fur et à mesure que le diamètre extérieur de la bobine diminue, en raison de la diminution du bras de levier qui correspond au rayon de la bobine (2). En conséquence, au fur et à mesure de la diminution du diamètre de la bobine (2), la tension du fil (1) en entrée de broche augmente, modifiant l'équilibre des forces, l'enroulement du fil dans la réserve diminuant jusqu'à un seuil pouvant provoquer la casse du fil.However, for a given resisting torque, the tension of the wire required to rotate the coronel (10) increases as the outer diameter of the coil decreases, due to the decrease of the lever arm which corresponds to the radius of the coil (2). Consequently, as the diameter of the coil (2) decreases, the tension of the thread (1) at the spindle inlet increases, modifying the equilibrium of the forces, the winding of the yarn in the reservoir decreasing until 'to a threshold that can cause breakage of the wire.
Dans le même temps, la vitesse de la coronelle augmente, ce qui accroît les pertes parasites par frottement et les vibrations, et affecte la stabilité du système, de sorte que l'on peut être amené à atteindre des limites non acceptables sur un plan textile ou mécanique.At the same time, the speed of the coronet increases, which increases parasitic friction and vibration losses, and affects the stability of the system, so that it may be necessary to reach unacceptable limits on a textile plane. or mechanical.
Pour résoudre ce problème, la vitesse de production est limitée pour que la vitesse de rotation de la coronelle et/ou les tensions engendrées par le dévidage restent en deçà de valeurs admissibles, en observant que cette vitesse ou ces tensions limites ne sont atteintes qu'en fin de dévidage de la bobine alimentaire.To solve this problem, the speed of production is limited so that the speed of rotation of the coronel and / or the voltages generated by the unwinding remain below acceptable values, observing that this speed or these limit voltages are only reached. at the end of unwinding the food roll.
Pour tenter de remédier à ces inconvénients, on a proposé, comme il ressort des brevets EP1045053 et JP200307933, des moyens pour motoriser la coronelle. Ces solutions sont complexes à mettre en œuvre et particulièrement coûteuses. Or il a été trouvé, et c'est ce qui fait l'objet de la présente invention, un dispositif et une méthode de pilotage d'un procédé de transformation d'un fil permettant de résoudre rationnellement ce problème et d'obtenir une augmentation importante de la productivité des installations de transformation des fils, notamment dans le cas de procédés de retordage tels que la double torsion, dans lequel le dévidage est réalisé au moyen d'une coronelle.In an attempt to remedy these drawbacks, it has been proposed, as is apparent from patents EP1045053 and JP200307933, means for motorizing the coronel. These solutions are complex to implement and particularly expensive. Now it has been found, and this is the subject of the present invention, a device and a method for controlling a method of transforming a wire to rationally solve this problem and to obtain an increase the productivity of wire processing facilities, particularly in the case of twisting processes such as double twisting, in which unwinding is performed by means of a coronel.
Selon l'invention, la méthode de pilotage du procédé consiste à faire évoluer la vitesse de dévidage et, de façon coordonnée, les autres paramètres associés du procédé de transformation en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur au moins une des bobines, de sorte que la vitesse de production reste en deçà des limites imposées par les conditions de dévidage sur ladite bobine.According to the invention, the method of controlling the process consists of changing the unwinding speed and, in a coordinated manner, the other associated parameters of the conversion process as a function of a quantity representative of the quantity of wire remaining wound on at least one of the coils, so that the production speed remains below the limits imposed by the unwinding conditions on said reel.
Selon l'invention, la grandeur représentative de la quantité de fil restant enroulé sur une bobine peut être son diamètre, son poids, sa masse, le métrage de fil enroulé sur la bobine ou tout autre grandeur, que l'on peut obtenir par exemple par :According to the invention, the quantity representative of the amount of wire remaining wound on a reel may be its diameter, its weight, its mass, the length of wire wound on the reel or any other size, which can be obtained, for example by :
- une mesure directe ou indirecte du diamètre de la bobine ;a direct or indirect measurement of the diameter of the coil;
- une mesure directe ou indirecte du poids de la bobine ;- a direct or indirect measurement of the weight of the coil;
- une mesure directe ou indirecte de la vitesse de rotation du fil autour du pourtour de la bobine, ou d'une coronelle qui tourne en même temps que le fil ;- a direct or indirect measurement of the speed of rotation of the wire around the periphery of the coil, or a coronel which rotates at the same time as the wire;
- une grandeur déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction du temps selon une loi préprogrammée, ou en fonction d'une grandeur représentative de l'évolution de cette quantité ; - une grandeur déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction de la mesure et/ou du calcul de la quantité de fil dévidé, ou en fonction d'une grandeur représentative de la vitesse de dévidage.a quantity deduced from a value initialized at the beginning of the unwinding (full spool), and decremented as a function of time according to a preprogrammed law, or as a function of a quantity representative of the evolution of this quantity; a quantity deduced from a value initialized at the beginning of the unwinding (full bobbin), and decremented as a function of the measurement and / or calculation of the amount of thread unwound, or as a function of a quantity representative of the unwinding speed .
Selon un mode préféré de réalisation de l'invention, l'ensemble des organes mis en œuvre pour la transformation d'un fil (déroulage, broche, moyens d'appel...) constituent une position de travail autonome, c'est à dire que ces organes sont pilotés individuellement par des moyens indépendants, de sorte que l'on puisse faire évoluer des paramètres du procédé de transformation en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur au moins une des bobines mise en œuvre dans cette position de travail indépendamment de l'état des positions de travail adjacent.According to a preferred embodiment of the invention, all the devices used for the transformation of a wire (unwinding, spindle, means of call ...) constitute an autonomous working position, it is at to say that these members are controlled individually by independent means, so that the parameters of the transformation process can be changed according to a quantity representative of the quantity of wire remaining wound on at least one of the coils implemented in this working position regardless of the state of the adjacent working positions.
Selon un mode de réalisation particulièrement avantageux de l'invention appliqué aux procédés de torsions mettant en œuvre une broche, la méthode de pilotage du procédé consiste :According to a particularly advantageous embodiment of the invention applied to torsion processes using a spindle, the method of controlling the process consists of:
- à piloter la vitesse de rotation de la broche et la vitesse de traction du fil par un ou des moyens indépendants, selon un rapport constant, de façon à donner au fil une torsion par mètre constante ;- Control the rotational speed of the spindle and the pulling speed of the wire by one or more independent means, in a constant ratio, so as to give the wire a twist per meter constant;
- à faire évoluer la vitesse de rotation de la broche (et donc proportionnellement la vitesse de traction) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation.- To change the speed of rotation of the spindle (and therefore proportionally the pulling speed) according to a magnitude representative of the amount of wire remaining wound on the supply reel.
Selon cette application, la loi d'évolution de la vitesse de rotation de la broche (et proportionnellement la vitesse de traction) en fonction de la quantité de fil restant enroulé sur la bobine alimentaire comporte une zone sensible constante entre la quantité initiale de la bobine pleine et une quantité intermédiaire, et une zone sensiblement décroissante entre ladite quantité intermédiaire et la quantité minimale (ou nulle) en fin de dévidage.According to this application, the law of evolution of the speed of rotation of the spindle (and proportionally the speed of traction) as a function of the amount of thread remaining wound on the spool has a zone sensitive constant between the initial quantity of the full bobbin and an intermediate amount, and a substantially decreasing zone between said intermediate amount and the minimum amount (or zero) at the end of unwinding.
Un autre problème que se propose de résoudre l'invention est de compenser la variation de torsion du fil résultant de l'accélération de la rotation du point de dévidage autour de la bobine au fur et à mesure que son diamètre diminue.Another problem to be solved by the invention is to compensate for the twist variation of the wire resulting from the acceleration of the rotation of the unwinding point around the coil as its diameter decreases.
Pour résoudre un tel problème, selon une forme de réalisation, on pilote la vitesse de rotation de la broche et la vitesse de traction du fil par une ou des motorisations indépendantes de celles des positions adjacentes, en faisant évoluer la vitesse de rotation de la broche et les vitesses des organes d'appel en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation selon un rapport variable, conférant donc au fil une torsion par mètre variable, en fonction de ladite grandeur représentative de la quantité de fil restant sur la bobine d'alimentation, de façon à compenser les variations de torsions par mètre induites par le dévidage en fonction dudit diamètre.To solve such a problem, according to one embodiment, the speed of rotation of the spindle and the speed of traction of the yarn are controlled by one or more operators independent of those of the adjacent positions, by changing the speed of rotation of the spindle. and the speeds of the call members as a function of a magnitude representative of the amount of wire remaining wound on the supply reel in a variable ratio, thereby giving the wire a twist per variable meter, as a function of said magnitude representative of the amount of wire remaining on the supply reel, so as to compensate for the variations in torsion per meter induced by the reeling according to said diameter.
Selon une autre forme de réalisation, on pilote la vitesse de rotation de la broche et la vitesse de traction du fil par une ou des motorisations indépendantes de celles des positions adjacentes, en faisant évoluer la vitesse de rotation de la broche et les vitesses des organes d'appel en fonction d'une grandeur représentative de la quantité de fil restant sur la bobine d'alimentation selon un rapport variable, conférant donc au fil une torsion par mètre variable, et d'une loi d'évolution en fonction de ladite grandeur représentative de la quantité de fil restant sur la bobine d'alimentation, de façon à compenser des variations de torsion par mètre induites par les opérations de dévidage ou de renvidage du procédé de torsion ou des procédés de transformation en amont ou en aval.According to another embodiment, the speed of rotation of the spindle and the speed of traction of the yarn are controlled by one or more operators that are independent of those of the adjacent positions, by changing the speed of rotation of the spindle and the speeds of the members. call based on a magnitude representative of the amount of wire remaining on the supply reel in a variable ratio, thus giving the wire a twist per variable meter, and a scaling law according to said magnitude representative of the amount of wire remaining on the feed reel, to compensate for torsional variations per meter induced by the unwinding or winding operations of the torsion process or upstream or downstream processing processes.
L'invention est exposée ci-après plus en détail à l'aide des figures et dessins ci-après :The invention is described below in more detail with the help of the figures and drawings below:
- La figure 1 est une vue schématique d'un procédé de double torsion, selon l'état de la technique.- Figure 1 is a schematic view of a double twist process, according to the state of the art.
- La figure 2 montre un diagramme illustrant les limites de vitesses de production au fur et à mesure du dévidement de la bobine alimentaire, selon l'art antérieur.- Figure 2 shows a diagram illustrating the production speed limits as reeling of the reel, according to the prior art.
- La figure 3 montre un diagramme illustrant les limites de vitesses de production au fur et à mesure du dévidement de la bobine alimentaire, selon l'invention.- Figure 3 shows a diagram illustrating the production speed limits as and reel of the reel, according to the invention.
- La figure 4 est une vue schématique d'un mode de réalisation de l'invention appliqué au procédé de double torsion.FIG. 4 is a schematic view of an embodiment of the invention applied to the double twist process.
L'invention est présentée ici en détail dans son application au procédé de double torsion. Cet exemple d'application n'est nullement limitatif, d'autres applications pouvant être envisagées en simple torsion, torsion multiple, câblage direct, guipage. Plus généralement, l'invention s'applique à tout procédé de transformation de fils dont au moins un est dévidé à partir d'au moins une bobine au moyen d'une coronelle, dans lequel l'évolution de la quantité de fil restant enroulé sur au moins une des bobines alimentaires (ou le diamètre de ladite bobine) conduit à des conditions de dévidage qui affecte la qualité ou la performance du procédé de transformation. On renvoie à la figure 1 et à l'analyse correspondante, les mêmes repères étant repris dans la suite de la description.The invention is presented here in detail in its application to the double twist process. This application example is in no way limiting, other applications that can be envisaged in single twist, multiple twist, direct wiring, wrapping. More generally, the invention applies to any son transformation method, at least one of which is unwound from at least one coil by means of a coronel, in which the evolution of the amount of wire remaining wound on at least one of the feed bobbins (or the diameter of said bobbin) leads to unwinding conditions that affect the quality or performance of the processing process. Referring to Figure 1 and the corresponding analysis, the same references being repeated in the following description.
Sur les diagrammes représentés figures 2 et 3, on a porté en abscisse le temps (t) et en ordonnée la vitesse (V) de production. La vitesse (V) représente indistinctement (à un facteur de proportion près) la vitesse de broche ou la vitesse d'appel puisque, pour obtenir une torsion donnée, ces deux vitesses sont liées par un rapport fixe.In the diagrams shown in FIGS. 2 and 3, the time (t) is plotted on the abscissa and the speed (V) of production is plotted on the ordinate. The speed (V) represents, indistinctly (to a factor of proportion) the spindle speed or the speed of call since, to obtain a given twist, these two speeds are linked by a fixed ratio.
Au démarrage de la production (20), la bobine (2) est pleine (son diamètre extérieur est maximum). Au fur et à mesure de l'avancement de la production, le diamètre de la bobine (2) diminue, jusqu'à la fin de la production (21) où il atteint sa valeur finale (qui est en général proche ou égale au diamètre de la bobine vide).At the start of the production (20), the coil (2) is full (its outside diameter is maximum). As the production progresses, the diameter of the reel (2) decreases, until the end of the production (21) where it reaches its final value (which is generally close to or equal to the diameter empty coil).
D'une manière générale la vitesse de production (V) est limitée par les forces centrifuges engendrées par la rotation du ballon. La force centrifuge tend à faire augmenter le diamètre du ballon et les tensions dans le fil (1). Il est donc nécessaire de limiter la vitesse de rotation pour rester en deçà d'un diamètre correspondant à l'espace disponible (notamment l'entraxe entre des broches adjacentes). On devra aussi limiter la vitesse de rotation pour rester en deçà des tensions acceptables par le fil (pour éviter qu'il ne casse et ne pas affecter sa résistance en le soumettant à des contraintes trop élevées). Cette limite dépend de la nature et du titre du fil, ainsi que de la géométrie du dispositif. Elle ne dépend pas du diamètre de la bobine alimentaire (2) et elle est donc sensiblement constante en fonction du temps. Cette limite de vitesse est représentée par la droite (22). La vitesse de production est aussi limitée par la vitesse de rotation du point de dé vidage, en raison par exemple de l'évolution des forces résultantes du dévidage qui, pour une vitesse d'appel donnée, augmentent au fur et à mesure que le diamètre de la bobine (2) diminue. Pour une limite de vitesse de rotation ou une limite de force de traction donnée, la vitesse de production admissible (correspondant ici à la vitesse d'appel) décroît au fur et à mesure de la diminution du diamètre de la bobine (2) et donc décroît en fonction du temps. Cette limite de vitesse est représentée par la droite (23).In general, the production speed (V) is limited by the centrifugal forces generated by the rotation of the balloon. The centrifugal force tends to increase the diameter of the balloon and the tensions in the wire (1). It is therefore necessary to limit the speed of rotation to stay within a diameter corresponding to the available space (including the spacing between adjacent pins). It will also limit the speed of rotation to stay below acceptable voltages by the wire (to prevent it from breaking and not affect its resistance by subjecting it to too high stresses). This limit depends on the nature and the title of the wire, as well as the geometry of the device. It does not depend on the diameter of the food roll (2) and is therefore substantially constant as a function of time. This speed limit is represented by the line (22). The speed of production is also limited by the speed of rotation of the emptying point, for example because of the evolution of the forces resulting from the unwinding which, for a given speed of call, increase as the diameter of the coil (2) decreases. For a given speed limit or tensile force limit, the allowable production speed (here corresponding to the call speed) decreases as the diameter of the coil (2) decreases and thus decreases with time. This speed limit is represented by the line (23).
Selon certaines configurations (non représentées), la courbe de la limite de vitesse due au dévidage (23) peut rester au dessus de la limite de vitesse (22) due à la rotation du ballon pendant toute la durée entre le début (20) et la fin (21) de la production. Dans ce cas, il est possible de régler une vitesse de production constante (25), conformément à l'état de l'art antérieur.According to certain configurations (not shown), the curve of the speed limit due to unwinding (23) can remain above the speed limit (22) due to the rotation of the balloon during the entire duration between the start (20) and the end (21) of production. In this case, it is possible to set a constant production speed (25), in accordance with the state of the prior art.
Selon d'autres configurations (représentées sur les figures 2 et 3), la courbe de la limite de vitesse due au dévidage (23) descend en dessous de la limite due à la rotation du ballon (22) à partir d'un point (24) correspondant à une certaine quantité de fil restant enroulé sur la bobine (2). Dans ce cas, conformément à l'art antérieur, il est nécessaire de régler une vitesse de production constante, inférieure en tout point entre le début (20) et la fin (21) de la production à la plus basse des limites. Autrement dit, on adopte une limite de vitesse constante (25) c'est à dire en dessous de la courbe (23) en fin (21) de production (Figure 2).According to other configurations (shown in FIGS. 2 and 3), the curve of the speed limit due to unwinding (23) falls below the limit due to the rotation of the balloon (22) from a point ( 24) corresponding to a certain amount of wire remaining wound on the coil (2). In this case, according to the prior art, it is necessary to set a constant production speed, lower in every point between the beginning (20) and the end (21) of the production at the lowest limits. In other words, we adopt a constant speed limit (25) that is to say below the curve (23) at the end (21) of production (Figure 2).
Selon l'invention, la méthode de pilotage du procédé consiste : - à piloter la vitesse de rotation de la broche (4) et la vitesse des moyens de traction du fil (8, 9...) par une ou des motorisations (12, 13, 14...), indépendantes de celles des positions adjacentes, selon un rapport de vitesse constant, de façon à donner au fil une torsion par mètre constante ;According to the invention, the control method of the method consists in: controlling the rotational speed of the spindle (4) and the speed of the traction means of the thread (8, 9) by one or more actuators (12). , 13, 14 ...), independent of those of the adjacent positions, in a constant speed ratio, so as to give the wire one twist per constant meter;
- à faire évoluer la vitesse de rotation de la broche (4) (et donc proportionnellement la vitesse de traction) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2).- To change the speed of rotation of the spindle (4) (and therefore proportionally the pulling speed) according to a magnitude representative of the amount of wire remaining wound on the supply reel (2).
Selon un mode de réalisation préféré, donné à titre d'exemple non limitatif, le pilotage de la broche (4) et des moyens de traction (8, 9...) ont des motorisations individuelles (12, 13, 14...) commandées par des variateurs de vitesse (15, 16, 17), chacun recevant une consigne d'une unité de calcul (18), telle une carte électronique, un automate ou autre. L'information représentative de la quantité de fil restant enroulé sur la bobine (2) est communiquée à l'unité de calcul (18) qui modifie les consignes de vitesse selon des lois de variation en fonction de ladite quantité.According to a preferred embodiment, given by way of non-limiting example, the control of the spindle (4) and the traction means (8, 9 ...) have individual drives (12, 13, 14 ... ) controlled by variable speed drives (15, 16, 17), each receiving a set of a calculation unit (18), such as an electronic card, a PLC or other. The information representative of the amount of wire remaining wound on the reel (2) is communicated to the calculation unit (18) which modifies the speed instructions according to laws of variation as a function of said quantity.
Selon l'invention (figure 3), la loi d'évolution (26) de la vitesse de rotation de la broche, (et proportionnellement la vitesse de traction), en fonction de la quantité de fil restant enroulé sur la bobine alimentaire (2), comporte une zone sensible constante entre le début de la production (20) à la quantité initiale de la bobine pleine et une quantité intermédiaire (24) et une zone sensiblement décroissante entre ladite quantité intermédiaire (24) et la quantité minimale (ou nulle) en fin de dé vidage (21).According to the invention (FIG. 3), the evolution law (26) of the speed of rotation of the spindle, (and proportionally the pulling speed), as a function of the quantity of thread remaining wound on the spool (2 ) has a constant sensing area between the start of production (20) and the initial quantity of the solid coil and an intermediate quantity (24) and a substantially decreasing zone between said intermediate quantity (24) and the minimum quantity (or zero ) at the end of emptying (21).
Selon une autre application avantageuse de l'invention aux procédés de retordage par simple torsion ou par torsion multiple, la méthode de conduite du procédé consiste : - à piloter la vitesse de rotation de la broche (4) et la vitesse de traction du fil (8, 9...) par une ou des motorisations (12, 13, 14...) indépendantes de celles des positions adjacentes, en faisant évoluer la vitesse de rotation de la broche (4) et les vitesses des organes d'appel (8, 9...) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2) selon un rapport variable, conférant donc au fil une torsion par mètre variable, de façon à compenser les variations de torsions par mètre induites sur le fil par le dévidage en fonction dudit diamètre.According to another advantageous application of the invention to twisting or multiple twisting methods, the method of conducting the method consists of: - To control the speed of rotation of the spindle (4) and the pulling speed of the wire (8, 9 ...) by one or more actuators (12, 13, 14 ...) independent of those of the adjacent positions, by changing the speed of rotation of the spindle (4) and the speeds of the call elements (8, 9 ...) according to a quantity representative of the amount of wire remaining wound on the supply reel ( 2) in a variable ratio, thus conferring on the yarn a twist per variable meter, so as to compensate for the variations in torsions per meter induced on the yarn by the unwinding according to said diameter.
D'une manière avantageuse, une telle compensation consiste à établir une loi d'évolution du rapport entre la vitesse d'appel et la vitesse de broche afin de compenser les variations de torsions induites par toutes les phases de renvidage, dévidage et transformation en amont ou en aval du procédé de torsion.Advantageously, such compensation consists in establishing a law of evolution of the ratio between the speed of call and the spindle speed in order to compensate for the variations of torsions induced by all the phases of winding, feeding and transformation upstream. or downstream of the twisting process.
Selon une autre application de l'invention aux procédés de retordage par torsion multiple, la méthode de conduite du procédé consiste :According to another application of the invention to multiple twist twisting methods, the method of conducting the method comprises:
- à piloter la vitesse de rotation de la broche (4) et la vitesse des moyens de traction du fil positif (9) par un ou des moyens (12, 14...) indépendants de ceux des positions adjacentes, selon un rapport constant entre la vitesse de broche (4) et le moyen d'appel positif et de bobinage (9), de façon à donner au fil une torsion par mètre constante ;controlling the rotational speed of the spindle (4) and the speed of the traction means of the positive thread (9) by one or more means (12, 14) independent of those of the adjacent positions, in a constant relationship between the spindle speed (4) and the positive calling and winding means (9), so as to give the yarn one twist per constant meter;
- à faire évoluer la vitesse de rotation de la broche (4) (et donc proportionnellement la vitesse de traction pour assurer une torsion constante) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2) ; - à faire évoluer la vitesse de rotation du moyen de pré-appel (8) pour détendre le fil de la broche (4) pour compenser les variations de tension dans le ballon dues aux variations de la vitesse de broche (4) et rétablir ainsi une tension de bobinage constante.- to change the speed of rotation of the spindle (4) (and therefore proportionally the pulling speed to ensure a constant twist) according to a magnitude representative of the amount of wire remaining wound on the supply reel (2 ); - to change the speed of rotation of the pre-call means (8) to relax the wire of the pin (4) to compensate for voltage variations in the balloon due to variations in the spindle speed (4) and thus restore a constant winding voltage.
Selon l'invention, la grandeur représentative de la quantité de fil restant enroulé sur la bobine (2) peut être, par exemple :According to the invention, the quantity representative of the amount of wire remaining wound on the coil (2) can be, for example:
- Une mesure directe ou indirecte dudit diamètre de la bobine (2). Cette mesure peut être réalisée par exemple par des moyens optiques, par ultrason ou autre moyen. La mesure peut être continue ou discrète, c'est à dire détectant le passage par un ou des diamètres intermédiaires, par exemple, par des cellules électrique dont le faisceau est coupé lorsque la bobine atteint le ou les dits diamètres intermédiaires.- A direct or indirect measurement of said diameter of the coil (2). This measurement can be performed for example by optical means, ultrasound or other means. The measurement can be continuous or discrete, ie detecting the passage through one or more intermediate diameters, for example, by electric cells whose beam is cut when the coil reaches the said intermediate diameter or diameters.
- Une mesure directe ou indirecte du poids de la bobine. Cette mesure peut être réalisée en mesurant le poids de la bobine seule, ou avec son support, ou bien encore en surveillant le poids de la broche complète.- A direct or indirect measurement of the weight of the coil. This measurement can be made by measuring the weight of the bobbin alone, or with its support, or even by monitoring the weight of the complete spindle.
- Une mesure directe ou indirecte de la vitesse de rotation du fil autour du pourtour de la bobine (2), ou de la coronelle (10), par des moyens optiques magnétiques ou autre.- A direct or indirect measurement of the speed of rotation of the wire around the periphery of the coil (2), or the coronel (10), by magnetic optical means or other.
Dans le cas où le ballon entoure la bobine (2) et son support (3), les moyens de mesure cités précédemment peuvent être disposés à l'extérieur dudit support et du ballon formé par le fil. Ils peuvent aussi être embarqués avec la bobine (2) ou son support (3) à l'intérieur dudit ballon, auquel cas, les informations peuvent être transmises par tout moyen infrarouge, radiofréquence ou autre... Selon l'invention, la grandeur représentative de la quantité de fil restant enroulé sur la bobine (2) peut être aussi élaborée par un calcul, à partir d'une information représentative de l'évolution de cette quantité. Par exemple, pour une vitesse de production donnée, cette quantité de fil sur la bobine alimentaire décroît en raison du poids ou de la longueur prélevée par unité de temps. Ainsi, la quantité de fil restant enroulé sur la bobine et donc l'évolution de son poids et/ou de son diamètre, peuvent être calculées à partir, par exemple :In the case where the balloon surrounds the coil (2) and its support (3), the measuring means mentioned above may be disposed outside said support and the balloon formed by the wire. They can also be embedded with the coil (2) or its support (3) inside said balloon, in which case, the information can be transmitted by any infrared, radiofrequency or other means ... According to the invention, the magnitude representative of the amount of wire remaining wound on the coil (2) can also be developed by calculation, from information representative of the evolution of this quantity. For example, for a given production speed, this amount of yarn on the feed roll decreases because of the weight or length taken per unit of time. Thus, the amount of wire remaining wound on the reel and therefore the evolution of its weight and / or its diameter, can be calculated from, for example:
- d'une grandeur déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction du temps selon une loi préprogrammée ;a quantity deduced from a value initialized at the beginning of the unwinding (full reel), and decremented as a function of time according to a preprogrammed law;
- d'une grandeur déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction de la mesure et/ou du calcul de la quantité de fil dévidé.a quantity deduced from a value initialized at the beginning of the unwinding (full spool), and decremented as a function of the measurement and / or the calculation of the amount of thread unwound.
Le calcul peut être réalisé dans le calculateur (18) ou par tout autre moyen extérieur et communiqué à ce dernier, par exemple par un réseau (19).The calculation can be performed in the computer (18) or by any other external means and communicated to the latter, for example by a network (19).
L'élaboration de la grandeur représentative de la quantité de fil restant enroulé sur la bobine, le calcul de la vitesse de production et sa transmission aux moyens de pilotages des organes, notamment la broche (4) et le système d'appel (8, 9...) peuvent être réalisés par tous moyens appropriés tels des calculateurs (18) ou circuits électroniques, un automate ou autre, associés à des capteurs, systèmes de comptage, etc...The development of the magnitude representative of the amount of wire remaining wound on the coil, the calculation of the production speed and its transmission to the organ control means, in particular the pin (4) and the call system (8, 9 ...) can be made by any appropriate means such as computers (18) or electronic circuits, a PLC or other associated with sensors, counting systems, etc ...
Les avantages ressortent bien de la description. Grâce à l'invention, il est possible d'optimiser le procédé et notamment la vitesse de production, pendant toute la production. Il est notamment possible de minimiser les conséquences de limitations résultant de phénomènes propres au dé vidage et qui n'interviennent que pour certains diamètres de bobine, par exemple en fin de dévidage.The advantages are apparent from the description. Thanks to the invention, it is possible to optimize the process and in particular the speed of production, throughout the production. In particular, it is possible to minimize the consequences of limitations resulting from phenomena specific to de-emptying and which intervene only for certain coil diameters, for example at the end of reeling.
L'invention peut s'appliquer pour les machines équipées de moyens de motorisation collectifs. Elle procure un très grand avantage pour les machines constituées de positions de travail autonomes, c'est-à-dire équipées de moyens de motorisation individuels. En effet, chaque position de travail est ainsi pilotée pour obtenir la vitesse de production optimale, en fonction de l'état de dévidage de sa propre bobine. The invention can be applied for machines equipped with collective motorization means. It provides a great advantage for machines consisting of autonomous working positions, that is to say equipped with individual motorization means. Indeed, each working position is controlled to obtain the optimal production speed, depending on the unwinding state of its own coil.

Claims

REVENDICATIONS
-1- Méthode de pilotage d'un procédé de transformation de fils dont au moins un est dévidé à partir d'au moins une bobine (2) au moyen d'une coronelle (10), dans lequel l'évolution de la quantité de fil restant enroulé sur au moins une des bobines alimentaires (ou le diamètre de ladite bobine) conduit à des conditions de dévidage qui affecte la qualité ou la performance du procédé de transformation, caractérisée en ce qu'on fait évoluer la vitesse de dévidage et, de façon coordonnée, les autres paramètres associés du procédé de transformation, en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur au moins une des bobines (2), de sorte que ladite vitesse de dévidage reste en deçà des limites imposées par les conditions de dévidage.-1- method for controlling a son transformation process of which at least one is unwound from at least one coil (2) by means of a coronel (10), in which the evolution of the quantity of wire remaining wound on at least one of the feed bobbins (or the diameter of said bobbin) leads to unwinding conditions which affect the quality or performance of the transformation process, characterized in that the feeding speed is changed and, in a coordinated manner, the other associated parameters of the transformation method, as a function of a quantity representative of the quantity of wire remaining wound on at least one of the coils (2), so that said unwinding speed remains within the imposed limits by the unwinding conditions.
-2- Méthode selon la revendication 1, caractérisée en ce que la grandeur représentative est obtenue par une mesure directe ou indirecte du diamètre de la bobine (2).-2- Method according to claim 1, characterized in that the representative quantity is obtained by a direct or indirect measurement of the diameter of the coil (2).
-3- Méthode selon la revendication 1, caractérisée en ce que la grandeur représentative est obtenue par une mesure directe ou indirecte du poids de la bobine (2).-3- Method according to claim 1, characterized in that the representative magnitude is obtained by a direct or indirect measurement of the weight of the coil (2).
-4- Méthode selon la revendication 1, caractérisée en ce que la grandeur représentative est obtenue par une mesure directe ou indirecte de la vitesse de rotation du fil autour du pourtour de la bobine, ou de la coronelle (10) qui tourne en même temps que le fil (1). -5- Méthode selon la revendication 1, caractérisée en ce que la grandeur représentative est déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction du temps selon une loi préprogrammée, ou en fonction d'une grandeur représentative de l'évolution de cette quantité.-4- Method according to claim 1, characterized in that the representative quantity is obtained by a direct or indirect measurement of the speed of rotation of the wire around the periphery of the coil, or the coronel (10) which rotates at the same time than the wire (1). -5- Method according to claim 1, characterized in that the representative quantity is deduced from a value initialized at the beginning of the unwinding (full reel), and decremented as a function of time according to a preprogrammed law, or as a function of a quantity representative of the evolution of this quantity.
-6- Méthode selon la revendication 1, caractérisée en ce que la grandeur représentative est déduite d'une valeur initialisée au début du dévidage (bobine pleine), et décrémentée en fonction de la mesure et/ou du calcul de la quantité de fil dévidé, ou en fonction d'une grandeur représentative de la vitesse de dévidage.-6- Method according to claim 1, characterized in that the representative quantity is deduced from a value initialized at the beginning of the unwinding (full spool), and decremented according to the measurement and / or the calculation of the amount of thread unwound , or according to a magnitude representative of the unwinding speed.
-7- Utilisation de la méthode selon l'une quelconque des revendications 1 à 6, pour un procédé de simple torsion double torsion, câblage, guipage... de fils dont au moins un est dévidé à partir d'au moins une bobine (2) au moyen d'une coronelle (10), mettant en œuvre au moins une broche (4), caractérisée en ce que :-7- Use of the method according to any one of claims 1 to 6, for a method of single torsion double twist, wiring, wrapping ... of son of which at least one is unwound from at least one coil ( 2) by means of a coronel (10), implementing at least one pin (4), characterized in that:
- on pilote la vitesse de rotation de la broche (4) et la vitesse de traction du fil (1) par un ou des moyens indépendants, selon un rapport constant, de façon à donner au fil (1) une torsion par mètre constante ;the speed of rotation of the spindle (4) and the pulling speed of the thread (1) are controlled by one or more independent means, in a constant ratio, so as to give the thread (1) a twist per constant meter;
- on fait évoluer la vitesse de rotation de la broche (4) (et donc proportionnellement la vitesse de traction) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2).the rotational speed of the spindle (4) (and therefore proportionally the pulling speed) is changed according to a quantity representative of the quantity of thread remaining wound on the supply spool (2).
-8- Utilisation de la méthode selon l'une quelconque des revendications 1 à 6, pour un procédé de simple torsion, double torsion, câblage, guipage... de fils dont au moins un est dévidé à partir d'au moins une bobine (2) au moyen d'une coronelle (10), mettant en œuvre au moins une broche (4), caractérisée en ce qu'on pilote la vitesse de rotation de la broche (4) et la vitesse des organes d'appel (8, 9...) du fil par une ou des motorisations (12, 13, 14...) indépendantes de celles des positions adjacentes, en faisant évoluer la vitesse de rotation de la broche (4) et les vitesses desdits organes d'appel (8, 9...) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2) selon un rapport variable, conférant donc au fil une torsion par mètre variable, de façon à compenser les variations de torsions par mètre induites par le dévidage en fonction dudit diamètre.-8- Use of the method according to any one of claims 1 to 6, for a method of single twist, double twist, wiring, wrapping ... of son of which at least one is unwound from at least one coil (2) by means a coronel (10), implementing at least one pin (4), characterized in that the speed of rotation of the spindle (4) and the speed of the call devices (8, 9) are controlled. .) of the wire by one or more motorizations (12, 13, 14 ...) independent of those of the adjacent positions, by changing the speed of rotation of the spindle (4) and the speeds of said call elements (8, 9 ...) as a function of a quantity representative of the quantity of wire remaining wound on the supply reel (2) in a variable ratio, thus giving the yarn a twist per variable meter, so as to compensate for variations in twists per meter induced by unwinding according to said diameter.
-9- Utilisation de la méthode selon l'une quelconque des revendications 1 à 6, pour un procédé de simple torsion, double torsion, câblage, guipage... de fils dont au moins un est dévidé à partir d'au moins une bobine (2) au moyen d'une coronelle (10) mettant en œuvre au moins une broche (4), caractérisée en ce que :-9- Use of the method according to any one of claims 1 to 6, for a method of single twist, double twist, wiring, wrapping ... of son of which at least one is unwound from at least one coil (2) by means of a coronel (10) implementing at least one pin (4), characterized in that:
- on pilote la vitesse de rotation de la broche (4) et la vitesse des organes d'appel du fil positif (9) par un ou des moyens (12, 14...) indépendants de ceux des positions adjacentes, selon un rapport constant entre vitesse de broche (4) et le moyen d'appel positif et de bobinage (9), de façon à donner au fil une torsion par mètre constante ;the speed of rotation of the spindle (4) and the speed of the call elements of the positive wire (9) are controlled by one or more means (12, 14) independent of those of the adjacent positions, according to a ratio constant between spindle speed (4) and the positive calling and winding means (9), so as to give the yarn one twist per constant meter;
- on fait évoluer la vitesse de rotation de la broche (4) (et donc proportionnellement la vitesse de traction) en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur la bobine d'alimentation (2) ;the speed of rotation of the spindle (4) (and therefore proportionally the pulling speed) is changed as a function of a quantity representative of the quantity of thread remaining wound on the supply spool (2);
- on fait évoluer la vitesse de rotation du moyen de pré-appel (8) pour détendre le fil de la broche (4) pour compenser les variations de tension dans le ballon dues aux variations de la vitesse de broche (4) et rétablir ainsi une tension de bobinage constante. -10- Utilisation de la méthode selon l'une quelconque des revendications 7 ou 9, caractérisée en ce que la loi d'évolution (26) de la vitesse de rotation de la broche (et proportionnellement la vitesse de traction) en fonction de la quantité de fil restant enroulé sur la bobine alimentaire (2), comporte une zone sensible constante entre la quantité initiale de la bobine pleine et une quantité intermédiaire (24), et une zone sensiblement décroissante entre ladite quantité intermédiaire (24) et la quantité minimale (ou nulle) en fin de dévidage (21).the speed of rotation of the pre-call means (8) is changed in order to relax the wire of the spindle (4) in order to compensate for the variations of tension in the balloon due to variations in the spindle speed (4) and thus to restore a constant winding voltage. -10- Use of the method according to any one of claims 7 or 9, characterized in that the law of evolution (26) of the speed of rotation of the spindle (and proportionally the speed of traction) according to the amount of wire remaining wound on the feed roll (2), has a constant sensitive area between the initial quantity of the full bobbin and an intermediate amount (24), and a substantially decreasing zone between said intermediate quantity (24) and the minimum quantity (or zero) at the end of unwinding (21).
-11- Dispositif pour la mise en œuvre de la méthode selon l'une quelconque des revendications 1 à 10, caractérisé en ce que chaque position de travail est équipée d'organes pilotés par des motorisations indépendantes, de sorte que l'on puisse faire évoluer des paramètres du procédé de transformation en fonction d'une grandeur représentative de la quantité de fil restant enroulé sur au moins une des bobines (2) mise en œuvre dans cette position de travail, indépendamment de l'état des positions de travail adjacent.-11- Device for implementing the method according to any one of claims 1 to 10, characterized in that each working position is equipped with components controlled by independent motors, so that one can make changing the parameters of the transformation process according to a quantity representative of the amount of wire remaining wound on at least one of the coils (2) implemented in this working position, regardless of the state of the adjacent working positions.
-12- Dispositif selon la revendication 11, caractérisé en ce que le pilotage de la broche (4) et des organes d'appel (8, 9...) ont des motorisations individuelles (12, 13, 14...) commandées par des variateurs de vitesse (15, 16, 17), chacun recevant une consigne d'une unité de calcul (18), telle une carte électronique, un automate ou autre.-12- Device according to claim 11, characterized in that the control of the spindle (4) and the call members (8, 9 ...) have individual drives (12, 13, 14 ...) controlled by variable speed drives (15, 16, 17), each receiving an instruction from a computing unit (18), such as an electronic card, a PLC or the like.
-13- Dispositif selon l'une quelconque des revendications 11 ou 12, caractérisé en ce que l'information représentative de la quantité de fil restant enroulé sur la bobine (2) est communiquée à l'unité de calcul (18) qui modifie les consignes de vitesse selon des lois de variation en fonction dudit diamètre.Apparatus according to any one of claims 11 or 12, characterized in that the information representative of the amount of wire remaining wound on the coil (2) is communicated to the computing unit (18) which modifies the speed instructions according to laws of variation as a function of said diameter.
-14- Dispositif selon l'une quelconque des revendications 11 à 13, caractérisé en ce que l'élaboration de la grandeur représentative de la quantité de fil restant enroulé sur la bobine, et/ou le calcul de la vitesse de production et sa transmission aux moyens de pilotages des organes, notamment la broche (4) et le système d'appel (8, 9...) sont réalisés par des moyens tels des calculateurs (18) ou circuits électroniques, un automate ou autre, associés à des capteurs, systèmes de comptage, etc....-14- Device according to any one of claims 11 to 13, characterized in that the development of the magnitude representative of the amount of wire remaining wound on the coil, and / or the calculation of the production speed and its transmission the means for controlling the members, in particular the pin (4) and the call system (8, 9 ...) are made by means such as computers (18) or electronic circuits, an automaton or other, associated with sensors, counting systems, etc.
-15- Méthode de pilotage d'un procédé de transformation par simple torsion, double torsion ou câblage de fils dont au moins un est dévidé à partir d'au moins une bobine et mettant en œuvre au moins une broche (4), caractérisée en ce que l'on pilote la vitesse de rotation de la broche (4) et la vitesse de traction du fil par une ou des motorisations (12, 13, 14...) indépendantes de celles des positions adjacentes, en faisant évoluer la vitesse de rotation de la broche (4) et les vitesses d'organes d'appel (8, 9...) de fil en fonction d'une grandeur représentative de la quantité de fil restant sur la bobine d'alimentation (2) selon un rapport variable, conférant donc au fil une torsion par mètre variable, et d'une loi d'évolution en fonction de ladite grandeur représentative de la quantité de fil restant sur la bobine d'alimentation (2), de façon à compenser des variations de torsion par mètre induites par les opérations de dévidage ou de renvidage du procédé de torsion ou des procédés de transformation en amont ou en aval. Method for controlling a transformation process by simple torsion, double twist or wiring of threads of which at least one is unwound from at least one spool and implementing at least one spindle (4), characterized in that what is controlled the speed of rotation of the spindle (4) and the speed of traction of the wire by one or more motorizations (12, 13, 14 ...) independent of those of the adjacent positions, by changing the speed of rotation of the spindle (4) and the speeds of the call elements (8, 9 ...) of wire according to a quantity representative of the quantity of wire remaining on the supply reel (2) according to a variable ratio, thus conferring on the yarn a twist per variable meter, and an evolution law as a function of said magnitude representative of the amount of yarn remaining on the feed reel (2), so as to compensate for variations torsion per meter induced by the unwinding or winding operations of the torsion or transformation processes upstream or downstream.
EP06778950A 2005-06-21 2006-06-15 Method for monitoring a yarn transforming process Withdrawn EP1893794A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0551677A FR2887237B1 (en) 2005-06-21 2005-06-21 METHOD FOR CONTROLLING A PROCESS FOR TRANSFORMING WIRES
PCT/FR2006/050603 WO2006136747A2 (en) 2005-06-21 2006-06-15 Method for monitoring a yarn transforming process

Publications (1)

Publication Number Publication Date
EP1893794A2 true EP1893794A2 (en) 2008-03-05

Family

ID=35768107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06778950A Withdrawn EP1893794A2 (en) 2005-06-21 2006-06-15 Method for monitoring a yarn transforming process

Country Status (5)

Country Link
US (1) US20080308664A1 (en)
EP (1) EP1893794A2 (en)
BR (1) BRPI0611708A2 (en)
FR (1) FR2887237B1 (en)
WO (1) WO2006136747A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914320B1 (en) * 2007-03-28 2009-05-22 Ritm Soc Par Actions Simplifie WIRING DEVICE FOR CARRYING OUT A DIRECT WIRING METHOD OF TWO COMPONENTS OR WIRES USING A TORSION PIN
ES2316282B1 (en) * 2007-05-18 2010-01-26 Twistechnology S.L. SYSTEM OF THREADING OF THREAD IN MACHINES RETORCEDORAS AND SPINDERS.
FR2932194B1 (en) * 2008-06-06 2010-06-18 Trocem Vallart Internat PROCESS FOR WIRING SYNTHETIC WIRES BY TORING ON ONE ANOTHER
FR2937056A1 (en) * 2008-10-13 2010-04-16 Ritm Thread drawing device for textile industry, has control unit controlling compressed air supply unit of coupler and command unit of drive motor of spindle to connect coupler with orifice to create air flow during drawing time
CN101831735A (en) * 2010-05-19 2010-09-15 江阴祥盛纺印机械制造有限公司 Double twister
DE102016001164A1 (en) * 2016-02-02 2017-08-03 Saurer Germany Gmbh & Co. Kg Method and device for operating a workstation of a thread balloon-forming textile machine
US10029871B2 (en) * 2016-05-20 2018-07-24 Ricoh Company, Ltd. Image forming apparatus and setting method
DE102017112080A1 (en) * 2016-06-15 2017-12-21 Rieter Ingolstadt Gmbh Method for optimizing the production of a rotor spinning machine
DE102016008621A1 (en) * 2016-07-15 2018-01-18 Saurer Germany Gmbh & Co. Kg Method for starting a spindle of a cabling or double twisting machine
CN110656409B (en) * 2019-09-30 2021-09-07 三峡大学 Device and method for judging rotating outer diameter of wire rod
CN111235708B (en) * 2020-03-31 2021-04-20 上海咏姿时装有限公司 Composite yarn preparation device and preparation method
CN112904042B (en) * 2021-01-20 2023-03-17 浙江理工大学 Spindle speed sensor, and Internet of things spindle speed monitoring system and method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735257A (en) * 1956-02-21 legard
DE1774713A1 (en) * 1968-08-20 1971-11-04 Reiners Walter Dr Ing Unwinding device for thread-like goods
DE2417570B2 (en) * 1974-04-10 1976-03-18 Evolution S.A., Rorschach, St. Gallen (Schweiz) SPINNING OR TWISTING MACHINE WITH A CONTINUOUSLY VARIABLE GEAR
JPS59116426A (en) * 1982-12-23 1984-07-05 Takehara Koki Kk Method for controlling revolution of twister spindle
JPS63152422A (en) * 1986-12-10 1988-06-24 Kyoritsu Kikai Seisakusho:Kk Method for twisting yarn
US5174102A (en) * 1987-05-09 1992-12-29 Murata Kikai Kabushiki Kaisha Twist number setting device for a two-for-one twister
JPH01139822A (en) * 1987-11-19 1989-06-01 Murata Mach Ltd Method for twisting yarn using double twister
BE1004150A3 (en) * 1990-04-27 1992-09-29 Picanol Nv Method and apparatus for supplying weft yarn to the shed in a weaving machine.
JPH06179575A (en) * 1992-12-15 1994-06-28 Yazaki Corp Wire feeding device
US5706642A (en) * 1996-10-08 1998-01-13 Haselwander; Jack G. Variable twist level yarn
ES2160929T3 (en) * 1997-03-19 2001-11-16 Cognivision Res Sl METHOD OF INSPECTION OF SPINDING COILS AND SYSTEM FOR PRACTICE.
EP1045053A1 (en) * 1999-04-05 2000-10-18 Murata Kikai Kabushiki Kaisha Flyer device and flyer drive method
DE10062096B4 (en) * 1999-12-29 2012-06-14 Rieter Ingolstadt Gmbh Spinning machine with several individual drives having spinning stations
JP2001226839A (en) * 2000-02-08 2001-08-21 Murata Mach Ltd Single spindle-driving type multiple twister

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006136747A2 *

Also Published As

Publication number Publication date
US20080308664A1 (en) 2008-12-18
BRPI0611708A2 (en) 2010-09-28
FR2887237A1 (en) 2006-12-22
WO2006136747A3 (en) 2007-11-22
FR2887237B1 (en) 2007-09-21
WO2006136747A2 (en) 2006-12-28

Similar Documents

Publication Publication Date Title
WO2006136747A2 (en) Method for monitoring a yarn transforming process
FR2544346A1 (en) METHOD AND DEVICE FOR WIREDING FIBER YARNS, POSSIBLY CONTAINING AT LEAST ONE SOUL
FR2589590A1 (en) METHOD FOR PERFORMING A FIBER OPTIC WINDING
EP2419554B1 (en) Method and device for processing threads by double twisting or direct cabling
EP2763924A1 (en) Device for reducing the tension of yarn between a system for transforming said yarn and a system for winding said yarn
FR2524502A1 (en) CONCRETE WORK, ESPECIALLY FOR TWISTING GLASS YARNS
FR2521599A1 (en) METHOD AND APPARATUS FOR MANUFACTURING YARNS HAVING VARIOUS STRUCTURES
FR2481510A1 (en) VERTICAL CABLE
CA2054485A1 (en) Process and apparatus of obtaining on lind a ply of assemblies and winding of such ply on a drum
EP0070210B1 (en) Method and apparatus of manufacturing a doubled yarn
EP0252012B1 (en) Installation for the engagement of a plurality of optical fibres into the channels of a support member, and adjusting method of their surplus lengths within the channels
FR2797857A1 (en) DEVICE FOR BALANCING A SENSOR OF TRACTION FORCES IMPOSED ON A WIRE
FR2919000A1 (en) PROCESS FOR THE PRODUCTION OF HIGH RESISTANCE CABLE WIRES, ESPECIALLY FOR THE REINFORCING STRUCTURES FOR COMPOSITE MATERIALS, AND THE DEVICE FOR IMPLEMENTING THE SAME
WO2000067263A1 (en) Method and installation of cable mill for producing a cable at least partially untwisted
CH137996A (en) Apparatus for winding on spools of a continuously fed textile fiber.
CA2606862A1 (en) Knit-de-knit process for the treatment of yarn
FR3033322A1 (en) METHOD AND DEVICE FOR DETECTING THE END OF DEVIDING OF A FILIFORM ELEMENT
CH337104A (en) Machine for wiring wires
BE358727A (en)
CH359388A (en) Device for reducing the spinning tensions in a continuous ring spinning machine
BE1009578A3 (en) Method and device for processing and winding yarn
BE708783A (en)
BE564760A (en)
CH132868A (en) Method and device for twisting a textile yarn or for twisting and twisting several yarns together.
CH592949A5 (en) Wire twisting supply drum mounting - has supporting guide path to control tension of wire passing to twisting station

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071211

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RAX Requested extension states of the european patent have changed

Extension state: RS

Extension state: MK

Extension state: HR

Extension state: BA

Extension state: AL

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BEAUDUCEL, FLORENT

Inventor name: VEGA, CHRISTOPHE

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100101