EP2573026B1 - Système d'alimentation en fil - Google Patents

Système d'alimentation en fil Download PDF

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Publication number
EP2573026B1
EP2573026B1 EP11783352.5A EP11783352A EP2573026B1 EP 2573026 B1 EP2573026 B1 EP 2573026B1 EP 11783352 A EP11783352 A EP 11783352A EP 2573026 B1 EP2573026 B1 EP 2573026B1
Authority
EP
European Patent Office
Prior art keywords
yarn
pulling piece
tension
bobbin
pulling
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.)
Not-in-force
Application number
EP11783352.5A
Other languages
German (de)
English (en)
Other versions
EP2573026A1 (fr
EP2573026A4 (fr
Inventor
Sadamu Nakahata
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.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg Ltd
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 Shima Seiki Mfg Ltd filed Critical Shima Seiki Mfg Ltd
Publication of EP2573026A1 publication Critical patent/EP2573026A1/fr
Publication of EP2573026A4 publication Critical patent/EP2573026A4/fr
Application granted granted Critical
Publication of EP2573026B1 publication Critical patent/EP2573026B1/fr
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Classifications

    • 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
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
    • 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
    • B65H59/40—Applications of tension indicators
    • 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
    • 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
    • B65H59/387—Regulating unwinding 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 present invention relates to a yarn supplying system for supplying a yarn to a receiving device of the yarn such as a knitting machine, a weaving machine, or the like that receives the supply of yarn.
  • a yarn supplying system for supplying a yarn from a bobbin, around which the yarn is wound, to a receiving device of a yarn such as a flat knitting machine or a warp knitting machine for automatically knitting a knitted fabric, a weaving machine for weaving a woven fabric, and a yarn twisting device for twisting a plurality of yarns.
  • the yarn supplying system includes a yarn supplying device for reeling out the yarn from the bobbin, and a yarn storage device for temporarily storing the yarn reeled out and then feeding the yarn to the receiving device.
  • the yarn storage device moderates the fluctuation in tension that acts on the yarn resulting from a difference between the supply amount of yarn from the yarn supplying device and the usage amount of yarn of the receiving device by temporarily storing the yarn reeled out from the bobbin and then feeding the yarn to the receiving device.
  • the yarn is temporarily stored by pulling the yarn into a tubular body (storage unit) that extends in a vertical direction with a dancer roller (pulling piece) to be hooked to the yarn.
  • the pulling piece moves vertically downward so that the yarn is stretched without slackening when the supply amount of the yarn is greater than the usage amount, and the pulling piece moves vertically upward so that the stored yarn can be fed to the receiving device when the usage amount of the yarn is greater than the supply amount.
  • the yarn storage device is configured such that the yarn does not slack and an excessively large tension does not act on the yarn when the dancer roller is balanced at substantially an intermediate position of a moving range of the pulling piece.
  • the position in the vertical direction of the pulling piece, which acts as an index of the tension acting on the yarn in a yarn supplying path, is measured, and the supply amount of the yarn from the bobbin is controlled by the yarn supplying device based on the measurement result. This control prevents the tension from becoming too low thus slackening the yarn, or the tension from becoming too high thus breaking the yarn.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2006-299426
  • Prior art document EP 0 061 975 A1 discloses a device for reeling out a yarn from a bobbin.
  • the motor driving the bobbin of the filaments is controlled based on the detection result of the detector which detects the tension of the filaments.
  • a device is known, to wind up a wire material while the tension of the wire material is precisely made to be coincident with a set value, by comparing a measured tension of the wire material with a previously set value, and by moving a movable pulley in a direction in which the tension is increased, if the measured value is larger or smaller than the previously set value.
  • a wire winding tension controller is known in which the actual tension of a wound wire is detected by a piezoelectric element and is fed into a controller, in which based on the diameter of a conductor inputted from a conductor diameter input means, optimum tension is calculated. The controller sends a signal corresponding to a difference between the calculated optimum tension and actual tension to a piezoelectric element through a driving circuit so that the piezoelectric element controls the rotational braking force of a tension roller according to the signal.
  • a plurality of proximity sensors arranged with a predetermined spacing in a pulling direction or a magnetostrictive linear sensor arranged along the pulling direction is conventionally used to measure the position of the pulling piece described above.
  • the following problems arise when measuring the position of the pulling piece.
  • the position of the pulling piece can only be grasped intermittently even if the number of the proximity sensors is increased.
  • the behavior of the pulling piece (which way the pulling piece is moving in the pulling direction, or the like) at the positions where the proximity sensors are not arranged cannot be grasped, and hence the control of the yarn supplying device tends to be delayed.
  • the position of the pulling piece can be grasped continuously, but the configuration of the sensor is large scale and the cost is high.
  • the mass of the pulling piece increases since the pulling piece to be measured needs to be made of magnet when using the magnetostrictive linear sensor.
  • the usage amount of the yarn is rapidly reduced, the movement of the pulling piece with respect to such a change may be delayed, and when the usage amount of the yarn is rapidly increased, a large tension may act on the yarn.
  • the present invention has been made in view of such situations, and an object thereof is to provide a yarn supplying system in which the tension of the yarn in the yarn supplying path is maintained in an appropriate range and the yarn can be supplied from the bobbin without slackening with a simple configuration.
  • a yarn supplying system of the present invention is a yarn supplying system including a yarn supplying device for reeling out a yarn from a bobbin, and a yarn storage device for temporarily storing the yarn reeled out from the bobbin and then feeding the yarn to a receiving device in a middle of a yarn supplying path, which extends from the yarn supplying device to the receiving device of the yarn.
  • the yarn storage device includes a storage unit, to which the yarn is pulled in, a pulling piece, and an elastic body.
  • the pulling piece is a member which is hooked to the yarn and which linearly reciprocates along a pulling direction of the yarn.
  • the elastic body is a member for pulling the pulling piece in the pulling direction.
  • the yarn supplying system of the present invention further includes tension measuring means for measuring a tension of the elastic body hooked to the yarn, deriving means for deriving a physical amount from a measurement result of the tension measuring means using a correlative relationship between the tension of the elastic body and the physical amount for controlling a supply amount of the yarn from the bobbin determined in advance, and control means for controlling the supply amount of the yarn from the bobbin based on the derived physical amount.
  • a detection sensor for detecting a position of the pulling piece is arranged in at least two areas in a range in which the pulling piece reciprocates, and when the pulling piece is detected at the position of each detection sensor, the tension of the elastic body is detected with the tension measuring means, and the correlative relationship is calibrated based on the result.
  • control means controls the supply amount of the yarn such that a position at which the pulling piece is balanced changes within the range in which the pulling piece reciprocates in accordance with a usage amount of the yarn in the receiving device.
  • the tension of the elastic body coupled to the pulling piece for pulling in the yarn to the storage unit is continuously measured in real time, and the supply amount of the yarn by the yarn supplying device is controlled with the measurement result, so that the yarn can be supplied without slackening to the receiving device of the yarn while maintaining the tension acting on the yarn in the yarn supplying path in a constant range.
  • quality of the resultant article (knitted fabric and woven fabric) obtained in the receiving device can be improved.
  • the tension of the elastic body can be used to maintain the tension acting on the yarn in a constant range because the tension of the elastic body changes in accordance with the position of the pulling piece in the storage unit, and the position of the pulling piece acts as an index of the tension acting on the yarn in the yarn supplying path.
  • the tension of the elastic body at the position of each detection sensor is detected, and the correlative relationship between the tension of the elastic body and the physical amount for controlling the supply amount of the yarn from the bobbin can be calibrated.
  • the influences of temperature change in the environment, degradation over years of the elastic body, and the like that affect the supply state of the yarn from the yarn supplying device to the receiving device can be removed.
  • the slackening of the yarn and the yarn breakage involved in the rapid change in the usage amount of the yarn in the receiving device can be prevented by changing the position at which the pulling piece is balanced in accordance with the usage amount of the yarn in the receiving device. The details thereof will be described in the end of the embodiment.
  • a yarn supplying system 100 shown in Fig. 1 is a system for supplying a yarn 3Y to a flat knitting machine (receiving device of a yarn) 4 for knitting a knitted fabric, and includes a yarn supplying device 1 for reeling out the yarn 3Y from a bobbin 3, around which the yarn 3Y is wound, and a yarn storage device 2 for temporarily storing the yarn 3Y reeled out from the bobbin 3 and then feeding the yarn to the flat knitting machine 4 in the middle of a yarn supplying path extending from the yarn supplying device 1 to the flat knitting machine 4.
  • the main characteristic of the yarn supplying system 100 lies in having the configuration of controlling the supply amount of the yarn 3Y from the bobbin 3 so as to maintain the tension that acts on the yarn 3Y in the yarn supplying path in an appropriate range.
  • the yarn supplying device 1 of the present embodiment includes a pair of rollers arranged in parallel, a motor 1M for rotating the rollers, and control means 1C for controlling the rotation of the motor 1M.
  • the bobbin 3 is mounted on the pair of rollers, and the rollers are rotated with the motor 1M.
  • the reeling amount (supply amount) of the yarn 3Y is adjusted by the rotation speed of the bobbin 3, that is, the rotation speed of the rollers.
  • a yarn supplying device for reeling out the yarn 3Y by directly rotating the drum of the bobbin 3 may be used, or a yarn supplying device for sandwiching the yarn 3Y with a pair of feeding rollers and reeling out the yarn 3Y by the rotation of the rollers may be used.
  • a yarn supplying device for sandwiching the yarn 3Y with a pair of feeding rollers and reeling out the yarn 3Y by the rotation of the rollers may be used.
  • the yarn supplying device 1 for supplying the yarn 3Y from the rotating bobbin 3 is suited for supplying the yarn 3Y such as a metal yarn, which is hard and does not easily stretch, or a tape yarn, which has a flat cross-section, for example. This is because kink is prevented from occurring in the yarn 3Y when the yarn 3Y is twisted as the bobbin 3 itself is rotated.
  • the yarn supplying device 1 for rotating the bobbin 3 itself is difficult to have the supply amount of the yarn 3Y immediately respond to the rapid increase and decrease of the usage amount of the yarn 3Y.
  • the yarn supplying system 100 including the yarn supplying device 1 as described above requires the yarn storage device 2 to be described later.
  • the yarn storage device 2 is a device for temporarily storing the yarn 3Y reeled out from the bobbin 3 and then feeding the yarn to the flat knitting machine 4 to moderate the rapid fluctuation in the tension acting on the yarn 3Y resulting from the difference between the supply amount of the yarn 3Y from the yarn supplying device 1 and the usage amount of the yarn 3Y in the flat knitting machine 4.
  • the yarn storage device 2 is mainly configured by a storage unit 10, a pulling piece 20, and an elastic yarn (elastic body) 30.
  • the storage unit 10 is a portion for pulling the yarn 3Y vertically downward and storing the yarn in the middle of the yarn supplying path.
  • the pulling direction of the yarn 3Y is not limited to vertically downward, and can be any direction that would intersect the yarn supplying path when the yarn storage device 2 was not arranged.
  • the yarn 3Y may be pulled vertically upward, in a horizontal direction, or the like.
  • the storage unit 10 extends vertically upward or in the horizontal direction.
  • the yarn 3Y extending from the yarn supplying device 1 to the flat knitting machine 4 may be once turned back towards the yarn supplying device 1, and then turned back again to be directed toward the flat knitting machine 4. That is, the yarn supplying path may be configured to an S-shape so that the yarn 3Y is drawn toward the yarn supplying device 1 side.
  • the pulling piece 20 is a member for pulling the yarn 3Y into the storage unit 10 by being hooked to the yarn 3Y, and reciprocates along the pulling direction in accordance with the change in the supply amount and the usage amount of the yarn 3Y.
  • the elastic yarn 30 is connected to the pulling piece 20.
  • the elastic yarn 30 is connected to tension measuring means 40, to be described later, and turned back vertically upward by a pulley arranged on the lower side of the storage unit 10.
  • the yarn 3Y is pulled vertically downward by the pulling piece 20 by the pulling towards the vertically downward side by the elastic yarn 30 and the weight of the pulling piece 20.
  • the pulling piece 20 moves along the vertical direction so as to be at the position where the force of being pulled vertically upward by the yarn 3Y and the force of being pulled vertically downward by the elastic yarn 30 are balanced.
  • the pulling piece 20 moves vertically upward when the usage amount of the yarn 3Y by the flat knitting machine 4 is greater than the supply amount of the yarn 3Y by the yarn supplying device 1, and the pulling piece 20 moves vertically downward when the supply amount is greater than the usage amount of the yarn 3Y.
  • the stretching amount of the elastic yarn 30 also changes by the position of the pulling piece 20, and the contractive force of the elastic yarn 30 also changes.
  • the pulling piece 20 in the present embodiment is a plastic ring.
  • a state in which the pulling piece 20 is hooked to the yarn 3Y can be obtained by inserting the yarn 3Y through the ring.
  • the acceleration of the movement of the pulling piece 20 corresponding to the fluctuation in the usage amount of the yarn 3Y can be enhanced by obtaining the pulling piece 20 made of light plastic.
  • an excessive tension can be prevented from being applied on the yarn 3Y when the storage amount of the yarn 3Y is reduced, and the tension can be promptly applied on the yarn 3Y to remove the slack of the yarn 3Y when the storage amount of the yarn 3Y is increased.
  • the shape of the pulling piece 20 merely needs to be a shape that can hook the yarn, and is not limited to a ring shape.
  • it may be a roller having a groove at an intermediate portion in the thickness direction, an S-shaped hook, or the like.
  • the yarn 3Y is to be hooked to the groove of the roller, and the elastic yarn 30 is to be attached to a shaft part of the roller.
  • the yarn 3Y is to be hooked to one end of the S-shaped hook, and the elastic yarn 30 is to be attached to the other end.
  • a tension spring may be used in place of the elastic yarn 30 as an elastic body for pulling the pulling piece 20 into the storage unit 10.
  • the amount of yarn 3Y reeled out from the storage unit 10 changes according to the change in the usage amount of the yarn 3Y in the flat knitting machine 4, and the fluctuation in the tension acting on the yarn 3Y can be moderated.
  • the usage amount of the yarn 3Y is increased, the pulling piece 20 is moved vertically upward, and the amount of yarn 3Y reeled out from the storage unit 10 increases.
  • the usage amount of the yarn 3Y is reduced, the pulling piece 20 is moved vertically downward, and the amount of yarn 3Y reeled out from the storage unit 10 is reduced so that the yarn 3Y does not slacken.
  • the yarn storage device 2 of the yarn supplying system 100 of the present embodiment includes the tension measuring means 40 and deriving means 50 as a configuration for supplying the yarn 3Y to the flat knitting machine 4 while maintaining the tension acting on the yarn 3Y within an appropriate range.
  • the tension measuring means 40 is means for measuring the tension of the elastic yarn 30 that changes with displacement in the position of the pulling piece 20. For example, when the pulling piece 20 is moved vertically upward, the stretch of the elastic yarn 30 becomes greater than before the movement of the pulling piece 20, and the tension of the elastic yarn 30 detected by the tension measuring means 40 becomes greater. On the other hand, when the pulling piece 20 is moved vertically downward, the stretch of the elastic yarn 30 becomes smaller than before the movement of the pulling piece 20, and the tension of the elastic yarn 30 detected by the tension measuring means 40 becomes smaller.
  • a commercially available tension measuring device can be used for the tension measuring means 40.
  • the deriving means 50 configured by a computer or the like includes a lookup table for storing a correlative relationship between the tension of the elastic yarn 30 and the physical amount for controlling the supply amount of the yarn 3Y from the bobbin 3 determined in advance.
  • Fig. 2 shows an example of the lookup table in the present embodiment, where the position of the pulling piece 20 along the pulling direction is adopted for the physical amount for controlling the supply amount of the yarn 3Y.
  • the deriving means 50 acquires the measurement result of the tension of the elastic yarn 30 from the tension measuring means 40 at a predetermined time interval, and derives the position of the pulling piece 20 by checking the measurement result with the lookup table of Fig. 2 .
  • the lookup table of Fig. 2 is obtained as a result of the present inventors arranging a plurality of proximity sensors in the yarn storage device 2 of Fig. 1 , and then measuring the tension of the elastic yarn 30 and the position of the pulling piece 20. As shown in Fig. 2 , it is confirmed that the linear correlative relationship exists between the tension and the position.
  • the information on the position of the pulling piece 20 derived by the deriving means 50 is output to the control means 1C of the yarn supplying device 1.
  • the control means 1C controls the motor 1M based on the information, and fine-tunes the reeling amount (supply amount) of the yarn 3Y from the bobbin 3 so that the pulling piece 20 is balanced near a predetermined position (e.g., intermediate position of the moving range of the pulling piece 20) in the pulling direction. For example, if the position of the pulling piece 20 is high, this means that the supply amount of the yarn 3Y from the bobbin 3 has not caught up to the usage amount of the yarn 3Y in the flat knitting machine 4, and hence the control means 1C increases the rotation speed of the motor 1M. On the other hand, if the position of the pulling piece 20 is low, the control means 1C reduces the rotation speed of the motor 1M to suppress the supply amount of the yarn 3Y from the bobbin 3.
  • the control means 1C of the yarn supplying device 1 may also have the function of the deriving means 50.
  • the deriving means 50 in the yarn storage device 2 is not necessary, and the measurement result obtained with the tension measuring means 40 is directly input to the control means 1C.
  • the lookup table for determining the output of the motor 1M directly from the tension may be used.
  • the yarn storage device 2 of the present embodiment further includes position detection means 60 including a pair of proximity sensors (detection sensors) 60A, 60B arranged spaced apart in the pulling direction, and control means (not shown) for controlling the proximity sensors 60A, 60B.
  • the proximity sensor 60A is arranged at an upper end position in the moving range of the pulling piece 20, and the proximity sensor 60B is arranged at a lower end position in the moving range of the pulling piece 20.
  • the lookup table of Fig. 2 can be calibrated through the following procedures, for example. First, the motor 1M is controlled to move the pulling piece 20 from the upper limit to the lower limit in the moving range.
  • the tension of the elastic yarn 30 is measured when the pulling piece 20 comes at the position of each proximity sensor 60A, 60B.
  • the lookup table storing the correlation of the position of the pulling piece 20 corresponding to each tension is calibrated from the detected tension of the elastic yarn 30 and the position of the pulling piece 20.
  • the lookup table can be calibrated with the measurement at two points because the tension of the elastic yarn 30 and the position of the pulling piece 20 have a linear relationship.
  • the lookup table before the calibration is overwritten with the calibrated lookup table.
  • the influences of temperature change in the usage environment of the yarn supplying system 100, degradation over years of the elastic yarn 30, and the like that affect the supply state of the yarn 3Y can be removed by periodically carrying out the calibration.
  • the proximity sensors 60A, 60B may be used to monitor so that the pulling piece 20 does not exceed the upper and lower limits of the moving range at the time of the operation of the yarn supplying system 100. In such a case, the yarn supplying device 1 and the flat knitting machine 4 are to make an emergency stop based on the detection results of the proximity sensors 60A, 60B. If the proximity sensors 60A, 60B are used only to calibrate the lookup table, the positions of the proximity sensors 60A, 60B do not need to be arranged at the upper and lower end positions of the moving range of the pulling piece 20, and may be arranged at any position of the moving range.
  • the yarn 3Y can be supplied to the flat knitting machine 4 while maintaining the tension acting on the yarn 3Y in a constant range.
  • the knitted fabric having a stable quality can be knitted.
  • Drawbacks such as the supply of the yarn 3Y to the flat knitting machine 4 being stopped and the like when the yarn 3Y is broken are less likely to occur, whereby the knitted fabric can be knitted with satisfactory productivity.
  • the receiving device of the yarn 3Y in the present embodiment can be any device as long as it receives the yarn 3Y to produce some kind of product, and is not limited to flat knitting machine 4.
  • it may be a warp knitting machine, a weaving machine, a yarn twisting device, or the like.
  • the supply amount of the yarn 3Y from the bobbin 3 is adjusted by controlling the motor 1M with the control means 1C so that the pulling piece 20 is maintained near an intermediate area of a range in which the pulling piece 20 reciprocates.
  • the control means 1C may reduce the supply amount of the yarn 3Y to balance the pulling piece 20 at a position above the intermediate area of the moving range and prepare for the rapid reduction in the usage amount of the yarn 3Y. In this case, the pulling piece 20 can be prevented from lowering too much and slackening the yarn 3Y by the rapid reduction in the usage amount of the yarn 3Y.
  • the control means 1C may increase the supply amount of the yarn 3Y to balance the pulling piece 20 at a position lower than the intermediate area of the moving range to prepare for the rapid increase in the usage amount of the yarn 3Y.
  • the pulling piece 20 can be prevented from rising too much and causing an excessively large tension to be applied on the yarn 3Y by the rapid increase in the usage amount of the yarn 3Y.
  • the magnitude of the usage amount of the yarn 3Y in the flat knitting machine 4 can be grasped from the output of the motor 1M.

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  • Knitting Machines (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)

Claims (3)

  1. Système d'alimentation en fil (100), comportant :
    un dispositif d'alimentation en fil (1) comprenant un moteur (1M) pour faire tourner une bobine (3) autour de laquelle un fil est enroulé, pour dérouler le fil à partir de la bobine (3), et
    un dispositif de stockage fil (2) pour stocker temporairement le fil déroulé de la bobine (3) puis fournir le fil à un dispositif récepteur (4) au milieu d'un chemin d'alimentation en fil, qui s'étend du dispositif d'alimentation en fil (1) jusqu'au dispositif récepteur (4) de fil, pour modérer les fluctuations de tension qui agissent sur le fil en résultat d'une différence entre une quantité de fourniture de fil par le dispositif d'alimentation en fil (1) et une quantité d'utilisation de fil du dispositif récepteur (4), caractérisé en ce que
    le dispositif de stockage de fil (2) comprend
    un module de stockage (10) pour stocker le fil,
    une pièce de tirage (20), qui est accrochée au fil pour tirer le fil dans le module de stockage (10) et qui est en mouvement alternatif linéairement suivant une direction de tirage, et
    un corps élastique (30) pour tirer la pièce de tirage (20) dans la direction de tirage, et
    le système d'alimentation en fil (100) comprend en outre
    des moyens de mesure de tension (40) pour mesurer la tension du corps élastique (30),
    des moyens de déduction (50) pour déduire une quantité physique d'un résultat de mesure des moyens de mesure de tension (40) en utilisant une relation de corrélation entre la tension du corps élastique (30) et la quantité physique pour contrôler une quantité de fourniture de fil à partir de la bobine (3) déterminée à l'avance, et
    des moyens de commande (1C) pour contrôler la quantité de fourniture de fil à partir de la bobine sur la base de la quantité physique déduite, la position de la pièce de tirage (20) suivant la direction de tirage étant adoptée pour la quantité physique pour contrôler la quantité de fourniture de fil à partir de la bobine (3), et les moyens de commande (1C) étant adaptés à contrôler le moteur (1M) sur la base de la quantité physique déduite.
  2. Système d'alimentation en fil (100) selon la revendication 1, caractérisé en ce que
    un capteur de détection (60, 60A, 60B) destiné à détecter la position de la pièce de tirage (20) est agencé dans au moins deux régions dans une plage dans laquelle la pièce de tirage (20) a son mouvement alternatif, et
    lorsque la pièce de tirage (20) est détectée à la position de chaque capteur de détection (60), la tension du corps élastique (30) est détectée à l'aide des moyens de mesure de tension (40), et la relation de corrélation est étalonnée sur la base du résultat.
  3. Système d'alimentation en fil (100) selon la revendication 1 ou 2, caractérisé en ce que les moyens de commande (1C) contrôlent la quantité de fil fournie de telle sorte qu'une position à laquelle la pièce de tirage (20) est équilibréevarie dans la plage dans laquelle la pièce de tirage (20) a son mouvement alternatif en fonctionde la quantité de fil utilisée dans le dispositif récepteur (4).
EP11783352.5A 2010-05-21 2011-04-14 Système d'alimentation en fil Not-in-force EP2573026B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010117815 2010-05-21
PCT/JP2011/059300 WO2011145415A1 (fr) 2010-05-21 2011-04-14 Système d'alimentation en fil

Publications (3)

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EP2573026A1 EP2573026A1 (fr) 2013-03-27
EP2573026A4 EP2573026A4 (fr) 2013-10-30
EP2573026B1 true EP2573026B1 (fr) 2017-09-20

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EP (1) EP2573026B1 (fr)
JP (1) JP5805079B2 (fr)
KR (1) KR101384184B1 (fr)
CN (1) CN102844260B (fr)
WO (1) WO2011145415A1 (fr)

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JP6086882B2 (ja) * 2013-10-31 2017-03-01 株式会社島精機製作所 糸供給システム
CN105293182A (zh) * 2014-06-16 2016-02-03 蓝星(北京)化工机械有限公司 变速收丝机
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CN102844260B (zh) 2015-06-24
JPWO2011145415A1 (ja) 2013-07-22
KR101384184B1 (ko) 2014-04-10
JP5805079B2 (ja) 2015-11-04
KR20120130781A (ko) 2012-12-03
WO2011145415A1 (fr) 2011-11-24
CN102844260A (zh) 2012-12-26
EP2573026A1 (fr) 2013-03-27
EP2573026A4 (fr) 2013-10-30

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