EP0672204B1 - Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil - Google Patents

Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil Download PDF

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Publication number
EP0672204B1
EP0672204B1 EP94901938A EP94901938A EP0672204B1 EP 0672204 B1 EP0672204 B1 EP 0672204B1 EP 94901938 A EP94901938 A EP 94901938A EP 94901938 A EP94901938 A EP 94901938A EP 0672204 B1 EP0672204 B1 EP 0672204B1
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EP
European Patent Office
Prior art keywords
yarn
thread
measuring
feed system
friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94901938A
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German (de)
English (en)
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EP0672204A1 (fr
Inventor
Kurt Arne Gunnar Jacobsson
Lars Tholander
Pär JOSEFFSON
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.)
Iro AB
Original Assignee
Iro AB
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
Priority claimed from DE4240710A external-priority patent/DE4240710A1/de
Priority claimed from DE4304496A external-priority patent/DE4304496A1/de
Application filed by Iro AB filed Critical Iro AB
Publication of EP0672204A1 publication Critical patent/EP0672204A1/fr
Application granted granted Critical
Publication of EP0672204B1 publication Critical patent/EP0672204B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting 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
    • 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
    • B65H59/16—Braked elements rotated by 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
    • B65H59/10—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
    • B65H59/18—Driven rotary elements
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/367—Monitoring yarn quantity on the drum
    • 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
    • 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 a thread delivery system according to the preamble of claim 1.
  • the thread delivery system works according to the Mixing change principle, i.e. the same threads are passed through the jet loom alternating between at least two measurement suppliers deducted.
  • the control device thus responds to a fault with a measurement supplier, e.g. a thread break that at least another measurement supplier the delivery task of the one or more Measurement engineers takes over. Because when picking up the thread builds up thread tension from the supply spool, which in the Turns on the storage drum would be the one to be entered Adjust the thread length so that it is in normal operation thread tension building up in the stock is taken into account, i.e. that the thread section relaxed in the shed has the correct length has and is not too short.
  • At least a measurement supplier takes over partly also the delivery function of a disturbed measuring supplier, then the withdrawal frequency is increased, or even doubled.
  • the speed level increases.
  • the length of the relaxed in the jet loom Thread section is too short. Weft threads are too short (short picks). To avoid this, the thread length is in practice from the start on the high tension when taking over the delivery function of at least one other measurement supplier set what under normal operating conditions (low take-off frequency) leads to expensive thread scrap.
  • a measuring supplier is known in which between the supply reel and the measuring feeder a friction drive is provided by means of a driven friction roller an assistance promotion of the thread provides to the number of thread breaks due to heavy loads on the thread its sharp deflection at the outlet of the winding element and Reduce thread tension changes when withdrawing from the supply spool.
  • the invention has for its object a thread delivery system to create the type mentioned, in which the thread length without the risk of too short weft threads with regard to low waste can be set optimally short.
  • the auxiliary conveyor at least switched on a measuring feeder if this measuring feeder the delivery function of at least one other measurement supplier temporarily takes over.
  • a compressed air turbine according to claim 3 is inexpensive to manufacture, builds small and is easy to control.
  • the drive medium Compressed air is usually on the jet loom anyway to disposal.
  • the embodiment according to claim 4 enables the aid funding to the respective operating condition or to the voltage conditions to adjust in the thread.
  • the delivery rate is adjusted according to claim 5, by placing the thread on another circumferential area of the Auxiliary surface is promoted, which has a different coefficient of friction has than the previously used peripheral area.
  • the friction surface is always with an excess speed in terms of thread speed driven to the thread to promote with slip. This is according to claim 6 of the Control device or made by a thread selection device.
  • the thread in Direction of the axis of rotation adjusted relative to the friction surface and from one circumferential area shifted to another.
  • the embodiment according to claim 8 uses the compressed air turbine, around the necessary speed level of the friction surface to reach quickly.
  • the embodiment according to claim 9 is particularly useful because the valve turns the air turbine on or off and the differential piston pressure-dependent for rapid start-up of the Air turbine the flow path essentially unthrottled releases, but assumes its tax position automatically, once the air turbine is at sufficient speed is accelerated, he then the amount of air to maintain the sets the required operating speed.
  • the differential piston is a pressure accumulator if necessary dispensable.
  • the alternative embodiment according to claim 10 has the advantage that the thread cannot be adjusted in its thread path needs because either the friction roller or the auxiliary conveyor is adjusted axially.
  • the delivery rate is infinitely variable.
  • the thread delivery system opens sufficiently quickly responding to a change to a critical operating condition.
  • the termination or changeover of aid and / or downsizing the turns in the supply after the critical Operating condition can be carried out relatively slowly because short-term, too long free ends the weft threads are tolerable.
  • a thread delivery system S according to FIG. 1 has a supply spool P, one of these auxiliary conveyor devices H and a measuring feeder F on a textile machine W, e.g. a jet loom, with the thread length dimensioned thread sections supplied.
  • Thread Y passes through the auxiliary conveyor H, if necessary (indicated by dashed lines) at the inlet end of the Measuring feeder F is attached to the measuring feeder F on a storage drum 7 in several turns brought a supply 8 and cyclically overhead of the storage drum 7 deducted.
  • the supply reel P can be a scanning device 2 for the Diameter of the thread winding 1 can be assigned with the a signal can be generated as soon as the diameter dl of the Thread winding 1 falls under a diameter d2.
  • the scanner 2 could alternatively also be the processed one Monitor the thread quantity and from a predetermined remaining thread quantity generate a signal.
  • the measuring feeder F has a housing 3 in which a Control device 4 for a drive motor 5 of a winding element 6 housed and the storage drum 7 is non-rotatably mounted.
  • the storage drum 7 is one Stop device 11 assigned in the at least one retractable and extendable stop element 12 is arranged. At only one stop element 12 allows the diameter of the Adjust storage drum 7 to adjust the thread length. Are several stop elements distributed in the circumferential direction 12 provided in the stop device 11, then the storage drum 7 has an unchangeable diameter.
  • a central control device 15 is connected to the measurement feeder F, if necessary with the auxiliary conveyor H or its drive 16 or possibly with the scanning device 2 connected.
  • a Thread tension or thread speed meter 30 is provided and connected to the control device 15 be.
  • the control device 15 further similar thread delivery systems can be linked.
  • a circumferentially limited Longitudinal section 9 (indicated by dashed lines) from a in or withdrawn under the envelope surface of the storage drum 7 Passive position by means of an arrow symbolized energy accumulator 10 shown in dashed lines Compensating position adjustable, which then the turns on the storage drum 7 enlarged.
  • a supply 8 is stored on the storage drum 7 educated.
  • the thread length per entry is either by means of of the storage drum diameter or by a Selection of the stop elements 12 to be actuated in each case; taking into account that when winding up in the stock 8 emerging thread tension.
  • the string Y is longitudinally elastic, so that the thread tension in causes the thread section entered when relaxing to the thread length used in the compartment shortened.
  • the stop element is disengaged. Shortly before the set thread length is withdrawn, the or a predetermined stop element 12 is indented, so that the thread Y when the thread length is reached is stopped.
  • the drive 5 supplements below and / or in the meantime the supply 8 on the storage drum 7.
  • the energy store 10 is triggered and the longitudinal section 9 is adjusted to its compensation position, whereby the thread turns 8 are enlarged, especially after adjusting the longitudinal section 9 wound thread turns 8. It then becomes a the longer section of thread released, the relaxed Shape has the set thread length again.
  • the auxiliary conveyor device H works with a slip, if necessary, so that they are approximately linear or analogous to the Decrease in diameter of the thread winder 1 its auxiliary Influence increased. It is also possible to Longitudinal section 9 lagging to switch on the auxiliary conveyor H in the compensation position.
  • the auxiliary conveyor H and / or the Longitudinal section 9 can also depend on the signal of the measuring device 30 or a thread break detector at one other measuring feeder F are operated.
  • the auxiliary conveyor H stopped or disengaged and / or the longitudinal section 9 is returned to the passive position.
  • the thread delivery system contains two (or more) Measuring feeders F1, F2 with upstream auxiliary conveyor devices H1, H2 and supply spools P and one central control device 15 '. Both threads are Y. equal.
  • the measuring feeders F1, F2 work according to the Mixed change process, i.e. alternating, being the change from the entry device 13 'or the central control device 15 'can be initiated. It is possible, after each entry or after several entries switch. The point of the mixed change process is it to improve the quality of the fabric and the speed level to lower in each measurement supplier.
  • the control device 15 takes on a fault message by one of the measuring feeders F1, F2 (e.g. in the event of a thread break) the disturbed measurement supplier temporarily Operation and leaves at least one other measurement supplier take over the function of the disturbed measurement feeder. This results in a for this measurement supplier higher entry frequency with higher speed level and one regarding compliance with the set Thread length critical operating condition. That's why is either the respective of the control device 15 ' Auxiliary conveyor device H1, H2 and / or the longitudinal section 9 for adjustment to the compensation position operated. With each measuring feeder F1 or F2 you can either only the auxiliary conveyor H1, H2 or only the adjustable longitudinal section 9 may be provided. It is but conceivable - as shown - both components in combination to provide and use. It is also possible as in Fig. 1 either the diameter of the thread package on the supply spool P and / or the thread tension or to scan the thread speed and the to use the signals obtained for control.
  • the auxiliary conveyor device H, H1, H2 an electric motor M as drive 16 for one friction roller 18 arranged on a motor shaft 17 on which the thread Y wraps at an angle a.
  • the Friction roller 18 works with slip and must therefore at least one peripheral speed in the contact area have higher than the current pull-off speed of the thread is Y, e.g. 10 - 15% higher.
  • the intensity can be changed by changing the angle ⁇ aid funding, e.g. by the Auxiliary conveyor device H, H1, H2 in the direction of a double arrow 19 is adjusted. This adjustment can also used to be the auxiliary conveyor switch on at all.
  • the auxiliary conveyor device H formed from two friction drives H 'and H ", wherein the friction drive H 'e.g. thread Y permanently the friction roller 18 promoted during the second friction drive H2 by means of an adjusting element 25 is switched on in a guide 24 if necessary.
  • the Friction roller 18 of the second friction drive H " engages according to Fig. 5b, e.g. only for one compliance with the thread length critical operating condition so that the thread Y on both friction rollers 18 is redirected.
  • the deflection angle change on both friction rollers 18 so that a total the aid effect can be modulated and increased or can be reduced. It may be appropriate to do both To allow friction rollers 18 to rest permanently on thread Y, and just drive one to brake the other to compensate. Both are driven only when necessary.
  • the storage drum is in the measuring feeder F, F1, F2 according to FIG. 6 7 designed as a rod cage with axial rods 26.
  • the stop device 11 contains a plurality Stop elements 12, then the diameter of the storage drum 7 unchangeable. As indicated, it is only one Stop element 12 is provided, then the outer diameter the storage drum 7 adjustable, for which the rods 26 individually or together radially in the direction of a double arrow 34 adjustable spokes 33 are attached. Regardless of whether the storage drum diameter is fixed or is changeable, is at least one rod 26 or a longitudinal section 9 arranged at a rod 26 between the passive position shown in dashed lines, in which he roughly matches the envelope surface of the storage drum 7 is flush, and that shown in solid lines Compensation position adjustable.
  • the longitudinal section 9 can be parallel to itself or to the storage drum axis adjusted outwards, or by a near the forehead the tangential swivel axis of the storage drum be pivoted outwards.
  • the energy accumulator 10 is seated inside the storage drum 7.
  • the longitudinal section 9 or the rod or the finger is, if necessary, in the Passive position held by a lock 27.
  • a trigger 28 outside the storage drum 7 is actuated to release the lock 27 so that the Energy store 10 adjusts the longitudinal section 9. Is the critical operating condition is ended, then using a return drive 28 of the longitudinal section 9 in the Passive position moved back and locked.
  • the adjustable Rod 26 or the longitudinal section 9 should be on the one hand up to the outlet of the take-up device 6 and on the other hand at least over the length of the supply 8 extend to apply all turns.
  • a weaving machine e.g. an air jet loom W, arranged, which has a thread selection device A, which with a control device C via a line 57 is.
  • Upstream of the selection device A are several measurement feeders F, F1, F2, e.g. four, arranged, each upstream an auxiliary conveyor device H is provided is.
  • Each thread Y runs under deflection over a rotary friction surface 43 of the auxiliary conveyor H in the Measuring feeder F, F1, F2, and from this to the selection device A.
  • the auxiliary conveyor device H has a drive 42 for the rotary friction surface 43, which is an electromotive is pneumatic or mechanical drive. It but a drive 42 is also possible, the direct or via a gearbox with the drive of the measuring feeder is coupled.
  • the rotary friction surface 43 has several e.g. three adjacent circumferential areas 44, 45, 46 with different coefficients of friction.
  • the The axis of rotation of the rotary friction surface 43 is indicated by X.
  • Thread guide elements 47, 48 are on a carrier 49 attached the in a storage 50 between several Positions movable, e.g. is pivotable. A with arm 51 connected to support 49 projects into the actuation area a plunger 53 a drive 52 a Adjustment mechanism E.
  • a spring 54 holds the arm 51 either on stops not shown or on the plunger 53.
  • the drive 52 is via a transmission connection 55 connected to the control device C and can control by signals.
  • a yarn breakage or yarn path detector D may be arranged, which via a line 56 to the control device C is linked.
  • the control device C affects the Selection device A such that the threads Y alternately subtracted from. All auxiliary conveyors H can be driven.
  • the threads Y are, for example, on the peripheral areas with the lowest coefficient of friction (which can be smooth or polished). If a thread break or a critical operating condition occurs with a higher trigger voltage level, so this, if the thread breaks e.g. via the detector D, the control device C reported. This controls the selection device A so that the broken thread or the measurement faulty just ignored and by the remaining threads are then drawn off at a higher frequency becomes.
  • the trigger speed level increases as a result with the properly functioning measuring suppliers on. It is possible only one measurement supplier Intermediate storage function for the failed measuring supplier assign.
  • the take-off speed level increases only with this measurement supplier F.
  • Share several measurement suppliers alternatively the buffer function of the failed measuring feeder, then the drives 52 of all auxiliary conveyor devices H controlled.
  • the rotary friction surface 43 has several Circumferential areas with different coefficients of friction has to increase the funding rate several times or to be able to vary.
  • the speed of rotation the rotational friction surface 43 is so high from the start that there is an excess speed in any case. But it is also conceivable that the speed of rotation in increments or continuously, like that Take-off speed level increases.
  • control device C can the selector Head for A again in the original way that all measuring feeders F can be used.
  • signals are transmitted to the drives 52, around the threads Y on peripheral regions 44, 45 or 46 to shift the low to reduce the production rate Have coefficients of friction.
  • the rotary friction surface 43 is relative to the in unchanged position or with unchanged geometry running thread Y adjusted in the direction of the axis of rotation X.
  • a compressed air turbine is used as the drive in a housing 58 59 included, the output shaft 60 a friction roller 62nd drives.
  • the thread guide elements 61 are stationary.
  • Adjustment mechanism E acts in the direction of a double arrow 63 on the friction roller 62 to this in the direction the axis of rotation X to adjust.
  • the thread Y is unchanged in geometry held when the housing 58 of the auxiliary conveyor H with the friction roller 62 in the direction of the axis of rotation X the adjustment mechanism E is adjusted (in the direction a double arrow 65).
  • the housing 58 slidably held in guides 64. Implied Stops secure the end positions of the housing 58 Friction roller 62 is on the output shaft 60 in the direction the axis of rotation X is held immovably and non-rotatably. It are in the rotary friction surface 43 at least two side by side Circumferential areas 44, 45 with different Coefficient of friction provided.
  • the thread guide elements 47, 48 are e.g. Thread eyelets or Forks on the carrier 49 on a plunger 70 of the drive 52 is attached (switching magnet or pneumatic or electromotive drive part).
  • the drive 52 is at 10 with a bracket 69 fixed to the housing 58.
  • the Auxiliary conveyor device H has a holding flange 71 attached to an abutment, e.g. at the measuring supplier or on the coil frame of the coils P.
  • An arch slot 72 allows the housing 58 to be pivoted to a to be able to set the optimal thread geometry.
  • the thread guide elements 47, 48 are about 90 ° to each other around the Axis of rotation X offset. This transfer is conceivable to change and over the wrap angle on the Impact rate.
  • the rotary friction surface 43 could be conical or have conical circumferential regions 44, 45, 46.
  • the peripheral regions 44, 45, 46 could be different Have diameter and by e.g. rounded, transitions from thread Y that are easily traversable be separated.
  • the peripheral areas 44, 45, 46 exist e.g. made of ceramic, metal or tempered or treated Metal or plastic with high abrasion resistance, constant surface roughness and constant Coefficient of friction.
  • FIG. 11 illustrates a possible one in a longitudinal section Embodiment for the valve 68 of Fig. 10. It is is an electromagnetic between one Locked position and a through position switchable Valve 68 with a housing 73 on which a switching magnet 74 with a coil 75 and an axially movable Anchor 76 is attached.
  • the anchor 76 is at its lower End fitted with a sealing plate 77 and protrudes into a chamber 78 of the housing 73 to which the compressed air connection 67 leads.
  • the anchor 76 is convenient pressure equalized so that it is in spite of the in the chamber 78 prevailing pressure can be easily adjusted.
  • the anchor 76 is expediently by a spring, not shown held in the shut-off position shown, in which he the sealing plate 77 presses on a valve seat 89.
  • the coil 75 When the coil 75 is energized, it turns against a rear one Stop pulled and then gives the connection of the chamber 78 to an axial channel 79 of a flow path to a turbine connection 86 free. From axial channel 79 branches off a tap hole 88, which if necessary with an adjustment drive, e.g. for a swivel adjustment the auxiliary conveyor H is connected. At The stub channel 88 is not required through (as shown) closed a stopper.
  • the axial channel 79 opens into a small bore 80, on the side facing away from the axial channel 79 extended by a coaxial large diameter bore 81 is.
  • a differential piston 82 between one shown in solid lines Control position and one spaced from the axial channel 79 Release position guided.
  • the Differential piston 82 has a small diameter End portion 83 which engages in the bore 80 and a Throttle section 84 contains.
  • radial control passages 85 in fluid communication with the axial channel 79 stand.
  • shut-off position of the valve 68 and with the differential piston in the control position 82 is the axial channel 79 with the turbine connection 86 connected via the control passages 85, which with their Set a certain amount of air in cross sections.
  • the Front side of the end section 83 separates the turbine connection 86 from axial channel 79.
  • valve 68 If the valve 68 is switched to the open position, then the armature 76 in when the coil 75 is excited pulled its right end position.
  • the valve plate 77 takes off from valve seat 89.
  • the chamber 78 is with the Axial passage 79 connected.
  • the compressed air is applied the differential piston 82 on the front end surface of the End section 83 and moves it to the release position to the left.
  • the annular end face of the large diameter Part of the differential piston 82 conveniently relieved of pressure.
  • the axial channel 79 is direct connected to the turbine port 86 so that a substantially uncontrolled compressed air flow to the turbine is possible.
  • the throttle section 84 is dimensioned such that that the pressure in the axial channel 79 increases Application side of differential piston 82 reproduces as soon as the compressed air turbine to sufficient Speed was accelerated.
  • Valve 68 could also be mechanical or when turned on the compressed air supply can be operated pneumatically.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

L'invention concerne un procédé pour la commande d'un système de livraison du fil, comportant au moins un fournisseur-doseur (F) présentant un tambour de stockage, avec une bobine de réserve (1) associée et avec un métier à tisser à tuyères (W) prélevant sur le fournisseur-doseur des sections de fil de longueur prédéterminée. Avec un tel procédé, l'on connaît temporairement des conditions de fonctionnement critiques en ce qui concerne le maintien de la longueur de fil, avec une grande vitesse d'enroulement du fil sur le tambour de stockage et/ou une haute résistance de dévidage sur la bobine de réserve. Selon l'invention, le fil est, pendant une condition de fonctionnement critique, soumis à une friction qui en facilite l'acheminement sur son trajet vers le tambour de stockage, et/ou les spires de fil sur le tambour de stockage sont agrandies.

Claims (11)

  1. Système d'amenée de fil (S) comportant au moins deux fournisseurs de mesure (F,F1,F2), qui sont raccordés à un dispositif de commande commun (15',C) et installés sur un métier à tisser à injection (W) qui tire respectivement une longueur de fil réglée pour chaque fournisseur de mesure, et dans lequel chaque fournisseur de mesure comporte un tambour accumulateur (7) et un élément de bobinage (6), qui peuvent être entraínés en rotation l'un par rapport à l'autre à l'aide d'un dispositif de convoyage (5) contrôlé par un dispositif de commande (4) du fournisseur de mesure, un dispositif d'arrêt (11) pour mesurer de façon cadencée la longueur de fil et au moins une bobine associée débitrice de fil (1), et dans lequel les fournisseurs de mesure peuvent être commandés au moyen du dispositif de commande (15', C), selon un fonctionnement alterné, avec une fréquence de tirage respective faible ou bien, dans le cas d'une défaillance, due à une perturbation, d'au moins un fournisseur de mesure, pour faire fonctionner au moins un autre fournisseur de mesure avec une fréquence de tirage alors accrue, caractérisé en ce que le dispositif de commande (15',C) est relié à au moins un dispositif mécanique (H,H1,H2) de convoyage auxiliaire du fil, qui est prévu entre la bobine débitrice (1) et chaque fournisseur de mesure (F,F1,F2), et, dans le cas d'un fonctionnement de ce fournisseur de mesure réglé par le dispositif de commande (15',C), avec une vitesse de tirage accrue à l'aide du dispositif de commande (15',C) pour respecter la longueur de fil réglée même dans le cas d'une fréquence de tirage accrue, et que le dispositif de convoyage auxiliaire comporte un dispositif d'entraínement à friction possédant au moins un rouleau de friction (10,62) pouvant être entraíné et sur lequel le fil (Y) est appliqué avec un angle de déviation (α).
  2. Système d'amenée de fil selon la revendication 1, caractérisé en ce que, en plus du dispositif de convoyage auxiliaire (H,H1,H2), le tambour accumulateur (7) de chaque fournisseur de mesure (F,F1,F2) possède une section ou une longueur périphérique (9) limitée dans la direction circonférentielle et qui peut être amenée brusquement au moyen d'un accumulateur de force (10) pouvant être déclenché par un déclencheur (28), depuis une position passive, dans une position de compensation qui est en saillie par rapport à la surface circonférentielle voisine du tambour accumulateur (7), et que le dispositif de commande (15',C) est également relié selon une liaison de commande au déclencheur (28), pour activer simultanément le dispositif de convoyage auxiliaire de fil (H,H1,H2) et pour déclencher l'accumulateur de force (10).
  3. Système d'amenée de fil selon la revendication 1, caractérisé en ce que le rouleau de friction (18,62) peut être entraíné par une turbine à air comprimé (59,121) ou par un moteur électrique.
  4. Système d'amenée de fil selon les revendications 1 et 3, caractérisé en ce que deux ou plusieurs rouleaux de friction (18,62) pouvant être entraínés individuellement et un dispositif de réglage servant à modifier l'angle d'enroulement (α) sont prévus.
  5. Système d'amenée de fil selon la revendication 3, caractérisé en ce que le rouleau de friction (18,62) comporte une surface de friction (43) comportant plusieurs zones (44 à 46) disposées côte-à-côte et fermées dans la direction circonférentielle et possédant des coefficients de frottement différents, et qu'il est prévu un mécanisme de déplacement (E) pouvant être entraíné, au moyen duquel pour modifier la cadence d'entraínement du fil, soit le fil (Y) peut être décalé depuis une partie circonférentielle à une autre partie circonférentielle, soit les zones circonférentielles (44,45,46) peuvent être décalées par rapport au fil (Y) dans la direction de l'axe de rotation (X).
  6. Système d'amenée de fil selon la revendication 5, caractérisé en ce que le dispositif d'entraínement (52) du mécanisme de déplacement (E) est raccordé au dispositif de commande ou à un dispositif de sélection de fil (A) du métier à tisser à injection.
  7. Système d'amenée de fil selon les revendications 5 et 6, caractérisé en ce que le mécanisme de déplacement (E) comporte au moins un élément formant guide-fil (47,48), qui s'applique sur le fil (Y) dans la direction de l'axe de rotation (X) et qui est réglable dans la direction de l'axe de rotation (X) entre plusieurs positions qui correspondent, du point de vue nombre et position, à ceux des zones circonférentielles (44,45,46) de la surface de frottement (43), à l'aide du dispositif d'entraínement (51) qui est de préférence de type magnétique, pneumatique ou à moteur électrique.
  8. Système d'amenée de fil selon la revendication 7, caractérisé en ce que le dispositif d'entraínement (52) est monté sur un boítier (58) du dispositif de convoyage auxiliaire (H), qui contient la turbine à air comprimé (59) et éventuellement un accumulateur de pression (66), que le rouleau de friction (62) est disposé sur un arbre mené (60) qui fait saillie hors du boítier (58) et qu'au moins un oeillet passe-fil (61) est prévu dans le trajet du fil depuis la bobine débitrice (1) jusqu'au rouleau de friction (62).
  9. Système d'amenée de fil selon la revendication 8, caractérisé en ce qu'entre un raccord à air comprimé (67) et un raccord de turbine (86) est prévue une soupape (68,89,77,76) qui peut être commutée, de préférence par voie électromagnétique, entre une position bloquée et une position ouverte et dans laquelle un piston différentiel (82), qui peut être chargé directement à l'une de ses extrémités et par l'intermédiaire d'une section d'étranglement (84) à son autre extrémité, est déplaçable entre des raccords (67,86), en fonction de la pression, et ce entre une position de libération et une position de commande, piston qui comporte des passages de commande (85), qui, dans la position de commande, règlent la quantité d'air pour la turbine (59) et qui, dans la position de libération, libèrent le trajet d'écoulement essentiellement sans étranglement.
  10. Système d'amenée de fil selon les revendications 5 et 6, caractérisé en ce que le rouleau de friction (62) est déplaçable sur le dispositif de convoyage auxiliaire (H) ou que le dispositif de convoyage auxiliaire (H) lui-même est déplaçable dans la direction de l'axe de rotation (X), respectivement au moyen du mécanisme de déplacement (E).
  11. Système d'amenée de fil selon les revendications 5 et 7, caractérisé en ce que la surface de friction (43) ou les zones circonférentielles (44,45,46) est ou sont coniques.
EP94901938A 1992-12-03 1993-12-01 Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil Expired - Lifetime EP0672204B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4240710A DE4240710A1 (de) 1992-12-03 1992-12-03 Verfahren zum Steuern eines Fadenliefersystems und Fadenliefersystems
DE4240710 1992-12-03
DE4304496A DE4304496A1 (de) 1993-02-15 1993-02-15 Hilfsfördervorrichtung und fadenverarbeitendes System
DE4304496 1993-02-15
PCT/EP1993/003373 WO1994012709A1 (fr) 1992-12-03 1993-12-01 Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil

Publications (2)

Publication Number Publication Date
EP0672204A1 EP0672204A1 (fr) 1995-09-20
EP0672204B1 true EP0672204B1 (fr) 1998-04-15

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EP94901938A Expired - Lifetime EP0672204B1 (fr) 1992-12-03 1993-12-01 Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil

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US (1) US5662148A (fr)
EP (1) EP0672204B1 (fr)
JP (1) JPH08504004A (fr)
KR (1) KR100307849B1 (fr)
CN (1) CN1093676A (fr)
DE (1) DE59308414D1 (fr)
TW (1) TW299366B (fr)
WO (1) WO1994012709A1 (fr)

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CN105452137A (zh) * 2013-06-10 2016-03-30 Btsr国际股份公司 纱线回收装置及包含此装置的纱线馈送系统

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DE10006142A1 (de) * 2000-02-11 2001-08-16 Iro Patent Ag Baar Verfahren zur twistfreien Lieferung eines Fadens und Fadenliefergerät
TWI302903B (en) * 2003-02-05 2008-11-11 Saurer Gmbh & Co Kg Yarn withdrawal device
CN102051755B (zh) * 2011-01-13 2012-07-25 海宁安捷复合材料有限责任公司 一种剑杆机改进结构
DE102012007683A1 (de) * 2012-04-17 2013-10-17 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Spulmaschine und Spulmaschine
DE102012208158B3 (de) * 2012-05-15 2013-09-05 Lindauer Dornier Gmbh Luftdüsenwebmaschine mit einer Vorrichtung zur Druckluftversorgung
CN105063862B (zh) * 2015-07-15 2016-08-31 苏州市丹纺纺织研发有限公司 一种粗线双向纬线对接装置
JP6374369B2 (ja) * 2015-11-06 2018-08-15 株式会社豊田自動織機 織機における緯糸測定装置
JP6953452B2 (ja) * 2016-07-11 2021-10-27 ヴァンドヴィル・スウェーデン・アクチエボラグＶａｎｄｅｗｉｅｌｅ Ｓｗｅｄｅｎ ＡＢ 織り糸供給装置、織り糸供給装置のコントロール方法、及びコンピュータプログラムプロダクト
CN107285112B (zh) * 2017-08-04 2019-04-23 国网四川省电力公司广元供电公司 基于自动控制技术的履带式牵引装置
DE102017124562A1 (de) * 2017-10-20 2019-04-25 Maschinenfabrik Rieter Ag Textilmaschinenverbund mit einer Bandspeichereinheit zum Zwischenspeichern von Faserband
JP7120880B2 (ja) * 2018-10-24 2022-08-17 津田駒工業株式会社 流体噴射式織機における緯入れ装置の制御方法及び緯入れ装置
CN113684594B (zh) * 2021-08-17 2022-08-30 广东邦诚纺织科技有限公司 经完经断即时检测自停装置和圆织机

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KR100307849B1 (ko) 2001-11-30
JPH08504004A (ja) 1996-04-30
KR950704556A (ko) 1995-11-20
DE59308414D1 (de) 1998-05-20
TW299366B (fr) 1997-03-01
CN1093676A (zh) 1994-10-19
US5662148A (en) 1997-09-02
WO1994012709A1 (fr) 1994-06-09
EP0672204A1 (fr) 1995-09-20

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