EP2419554A1 - Procédé et dispositif de transformation de fils par double torsion ou cablage direct - Google Patents
Procédé et dispositif de transformation de fils par double torsion ou cablage directInfo
- Publication number
- EP2419554A1 EP2419554A1 EP10723244A EP10723244A EP2419554A1 EP 2419554 A1 EP2419554 A1 EP 2419554A1 EP 10723244 A EP10723244 A EP 10723244A EP 10723244 A EP10723244 A EP 10723244A EP 2419554 A1 EP2419554 A1 EP 2419554A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- balloon
- speed
- maximum diameter
- wire
- diameter
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- D01H1/101—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting in which multiple twist is imparted at the take-up stations
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
Definitions
- the invention relates to the technical sector of textile thread processing machines.
- machines for transforming the yarns by twisting on themselves or by winding on one another based on the rotation of a spindle the twisting or winding being regulated by the ratio between the speed of rotation. the spindle and the speed of advancement of the son (s).
- the invention relates more particularly to methods for producing yarns resulting from the assembly by twisting, cabling or wrapping of a plurality of yarns of which at least one of the yarns rotated by the spindle, revolves around a member forming around from the latter a "balloon".
- yarn F
- Balloon the path adopted by the wire in its rotational movement around an organ or the space delimited by this trajectory when the wire turns.
- the invention more particularly relates to:
- the wire (F) is rotated by means of a pin (3), into which it enters through an axial channel (2) and emerges by a radial channel
- the system is equipped with means known to those skilled in the art such as brakes, capstans, issuers ... (1, 8) able to advance the wire (F) at a predetermined speed, and the reeling and / or the return under adjustable and / or controlled voltages.
- the problem that the invention proposes to solve is to form a balloon (6) of optimized and stable shape.
- the radial channel (4) of the spindle (3) opens on a cylindrical or conical part (5) on which the wire (F) is wound before leaving it to form the balloon (6), adopting a curved trajectory.
- the cylindrical or conical portion (5) designated by the skilled person by the term “reserve” or “store”, contributes to ensuring the stability of the balloon (6).
- Patents GB0982865, GB1 132892 or DE3130614 provide ways to solve this problem without achieving it satisfactorily.
- a second disadvantage of such a solution is that, for a determined volume to accommodate the reel (1 1) and its unwinding or winding system, the toroidal or ogival trunk type of the balloon (6) determined by the trajectory curvilinear of the wire (F) imposes an outside diameter and a high volume, and consequently centrifugal forces, voltages, aerodynamic losses, high energy consumption and bulk.
- the wire (F) does not take a curvilinear shape under the effect of the centrifugal force, it is kept under a high tension, for example by means of the drive device (1) arranged upstream of the inlet of the spindle acting as a brake.
- the space delimited by the rotating wire (F) has a shape close to a cylinder which is more advantageous.
- the arms or disks carrying the wire guide elements (F) reach a diameter substantially equal to that of the balloon, which creates mechanical stresses and high energy consumption.
- the invention aims to remedy these disadvantages.
- the invention relates to a method of transforming son by double twisting or direct wiring wherein at least one of the threads is rotated by means of a spindle and forms a balloon around a pot or cradle containing a unwinding or winding system, and wherein the wire which forms the ball is guided on at least one side of the balloon by an extended radial channel in an arm or a disc rotated with the spindle.
- the ball is formed by adopting a curvilinear trajectory, without winding on a reserve;
- the yarn is positively driven by two controlled speed systems, one upstream and the other downstream of the balloon, - outside the start and stop phases, the speed of one at least is constantly adjusted both wire drive systems to maintain the balloon diameter at a setpoint or between two parameterized min / max values.
- the wire is guided by one or more guide elements in the form of a radial channel up to a diameter substantially smaller than the maximum diameter of the balloon.
- the end of the radial channel, from which the wire forms the balloon without winding on a reserve is located at a diameter of between 40% and 80% of the maximum diameter of the balloon.
- one of the two wire drive systems is controlled to obtain a constant speed, which determines , in relation to the speed of rotation of the spindle, the torsion, in number of revolutions per meter, conferred on the thread by the process.
- the drive system arranged upstream of the balloon is at a fixed speed, and the drive system disposed downstream of the balloon is controlled at an adjustable speed, which speed:
- the drive system disposed downstream of the balloon is at a fixed speed, and the system a driving device arranged upstream of the balloon is controlled at an adjustable speed, which speed decreases when the quantity representative of the maximum diameter of the balloon is greater than the setpoint value and / or the maximum value parameterized; - increases when the magnitude representative of the maximum diameter of the balloon is less than the setpoint value and / or the parameterized minimum value.
- the production speed is variable, and at least one of the two wire drive systems is driven to obtain a speed which determines, in relation to With the speed of rotation of the spindle, the torsion, in number of revolutions per meter, conferred on the thread by the process.
- the drive system disposed upstream of the balloon and the drive system disposed downstream of the balloon are driven at adjustable speeds, such as the relative value of the difference "system speed downstream less system speed upstream":
- the positive or negative corrections of speeds applied to the drive system (s) to maintain the diameter of the balloon at a set value or between two parameterized minimum / maximum values are calculated from the measurement of the magnitude representative of the averaged diameter over a time representing several turns of the spindle.
- the positive or negative corrections of speeds applied to the drive system (s) to maintain the diameter of the balloon at a set value. or between two parameterized minimum / maximum values are between 0% and 3% of the speed.
- the positive or negative corrections are made in a fixed increment between 0% and 3% of the speed.
- the positive or negative corrections are proportional to the difference between the measured value and the reference value representative of the balloon diameter, and capped at a fixed value between 0% and 3% of the speed.
- the invention also relates to a device for transforming functions by double twisting or direct wiring in which at least one of the threads is rotated by a spindle to form a ball around a pot or a fixed cradle, said device presenting:
- two wire drive systems one arranged upstream and the other downstream of the balloon, subject to a control system, at least one of the drive devices being controlled according to an adjustable speed setpoint; a means of measuring the maximum diameter of the balloon, and / or of obtaining a quantity representative of the maximum diameter of the balloon;
- control system programmed to make corrections to the setpoint of the adjustable speed (s) of the driving system (s), so that, outside the phases of Starting and stopping, the speed (s) that is (are) adjustable is (are) continuously adjusted to maintain the maximum diameter of the balloon at a set point or between two minimum / maximum values set.
- FIG. 1 shows a schematic view of the direct wiring method according to the prior art.
- FIG. 2 shows a schematic view of the double twist process or cabling by means of a winding pin according to the prior art.
- FIG. 3 shows a schematic view of the double twist process or wiring by means of a winding pin according to the invention.
- FIG. 4 shows an exemplary embodiment of the control system capable of implementing the invention.
- FIGS. 5, 6 show examples of how to measure the diameter of the balloon by means of optical barriers.
- FIG. 7 shows an example of balloon diameter measurement mode with a CCD type sensor.
- maximum diameter (D) of the balloon (6) or “maximum diameter representative value” (D) of the balloon means the maximum diameter, or any diameter measured or evaluated in the zone where it is close to its maximum value, or any value correlated with this diameter.
- the invention thus relates to a method of transforming son by double twist or direct wiring in which at least one of the son (F), is rotated by means of a pin (3) at a speed (N), and forms a balloon (6) around a pot or cradle (7) containing a winding or winding member of a spool (11), wherein: - the thread (F) is guided on at least l one of the sides of the balloon (7) by a rotating element having a radial channel (4, 14) extended in an arm or disk in rotation;
- the wire (F) forms the balloon (6) by adopting a curvilinear trajectory, without winding on a reserve; the wire (F) is driven by two controlled-speed drive systems (V1, V2), one (1) upstream and the other (8) downstream of the balloon
- the speed (Vl or V2) of at least one of the two drive systems (1, 8) of the wire (F) is continuously adjusted to maintain the maximum diameter (D) of the balloon (6) to a set value or between two mini / max values set.
- the end of the radial channel (4, 14), from which the wire (F) forms the balloon (6) without winding on a reserve is located on a diameter of between 40% and 80% of the maximum diameter (D) of said balloon (6).
- the pot or the cradle (7) which contains the unwinding or winding device (12, 13) of the coil (11) is surrounded by one or more coaxial rings (15) with the spindle, used to guide the thread (F), as long as the spindle production speed is not reached and the balloon (6) has not reached its shape and its nominal diameter under the effect of the force centrifugal.
- the outer surface of said rings is polished and / or surface-treated to allow the yarn (F) to slide by minimizing friction and abrasion during the acceleration and deceleration phases.
- one of the two wire drive systems (1 or 8) is driven to obtain a speed (Vl or V2) constant, which determines, in relation to the rotational speed (N) of the spindle (3), the torsion, in number of revolutions per meter, given to the thread (F) by the method.
- This constant speed can be obtained, for example, by a variable speed drive (23 or 24) performing closed-loop servo of the speed on a constant setpoint.
- the speed of the second drive system (1 or 8) of the wire (F) should be exactly equal to that of the first, so that the length of wire (F) between the two drive systems (1 and 8) are constant.
- the speed (V1 or V2) of the second drive system (1 or 8) at an adjustable speed.
- This adjustable speed can be obtained, for example by a variable speed drive (23 or 24) performing a closed loop control of the speed on an adjustable setpoint.
- the drive system (1) arranged upstream of the balloon (2), is fixed speed (Vl), while the drive system (8) disposed downstream of the balloon (6) is driven at an adjustable speed (V2).
- Vl fixed speed
- V2 adjustable speed
- the speed (V2) of the drive system (8) disposed downstream of the balloon ( 6) is increased, and when the magnitude representative of the maximum diameter (D) of the balloon (6) is less than the setpoint value and / or the minimum parameterized value, said speed (V2) is decreased.
- the drive system (8) disposed downstream of the balloon (6) is at fixed speed (V2), and the drive system (1) disposed upstream of the balloon (6) is driven at an adjustable speed (Vl).
- V2 fixed speed
- Vl adjustable speed
- the speed (Vl) of the drive system (8) disposed downstream of the balloon ( 6) is decreased, and when the magnitude representative of the maximum diameter (D) of the balloon (6) is lower than the setpoint value and / or the parameterized minimum value, said speed (Vl) is increased.
- the production speed is variable, and at least one of the two drive systems (1 or 8) of the wire (F) is driven for obtaining a velocity (V1 or V2) which determines, in relation to the rotational speed (N) of the spindle (3), the twisting, in number of revolutions per meter, imparted to the yarn by the process.
- the drive system (1) disposed upstream of the balloon and the drive system (8) disposed downstream of the balloon ( 6) are controlled at adjustable speeds, such that the relative value of the difference "system speed (8) placed downstream less system speed (1) placed upstream" (V2-V1): increases when the representative magnitude of the maximum diameter (D) of the balloon (6) is greater than the setpoint and / or the maximum value parameterized;
- the positive or negative corrections of speeds (V1 or V2) applied to the drive system (s) (1 and / or 8) for maintaining the diameter (D) of the flask (6) at a set point or between two parameterized minimum / maximum values are established by comparison between the measured value of the quantity representative of the diameter (D) of the flask (6) and the setpoint and / or the minimum and maximum values.
- the maximum diameter (D) is subject to instantaneous variations or instabilities that are not representative of a drift.
- said corrections are thus calculated from the measurement of the magnitude representative of the diameter (D) of the balloon (6) averaged over a time representing several turns of the spindle. (3).
- the invention also relates to a device for twisting or wiring wires by means of a pin (3), at least one of the wires being rotated to form a balloon (6) around a pot or a fixed cradle (7).
- said device has: - two wire drive systems (1, 8), one arranged upstream and the other downstream of the balloon (8), which are subject to a control system (23 and / or 24), for example a frequency or frequency converter;
- control system such as an electronic card, a PLC, a computer, programmed to make corrections of the adjustable speed or speeds of the drive system or systems (1, 8), in order to maintain the maximum diameter ( D) of the flask or its representative value equal to a given set value and / or between two min / max values. data.
- CPU control system
- PLC PLC
- a computer programmed to make corrections of the adjustable speed or speeds of the drive system or systems (1, 8), in order to maintain the maximum diameter ( D) of the flask or its representative value equal to a given set value and / or between two min / max values. data.
- Several means are proposed to obtain a magnitude representative of the maximum diameter (D) of the balloon (6). These means are given as non-limiting examples of embodiment.
- the tension of the thread (F) measured between the driving devices (8 or 14) increases sharply when the maximum diameter (D) of the balloon (6) increases and so that the measurement of the tension of the thread (F) provides a quantity representative of the diameter (D).
- the maximum diameter setpoint (D) or the minimum / maximum values to be obtained are converted into a voltage setpoint or minimum / maximum voltage value that is valid for a type and a wire title and for a speed (N) of brooch.
- the tension of the thread (F) can be measured by a sensor (16), which can be arranged, as shown in FIG. 4: either between the output of the spindle (3) and the driving system (8) of the wire placed downstream of the balloon (6); or, in a preferred manner, between the yarn drive system (1) placed upstream of the balloon and the input of the spindle (3).
- the torque or the power absorbed by the spindle (3) for its rotation increases sharply when the maximum diameter (D) of the balloon (6) increases and so that the measurement this power, this torque, or the current absorbed by the motor driving the pin provides a magnitude representative of the maximum diameter (D).
- the maximum diameter setpoint (D) or the minimum / maximum values to be obtained are converted into a setpoint or minimum / maximum value of power, torque or voltage current valid for a type and a wire title and for a speed of brooch.
- the direct measurement of the diameter (D) of the balloon (6) can also be carried out by optical means.
- FIGS. 5 and 6 show an exemplary embodiment of such a measurement by means of a device composed of at least two "optical barriers" (17), composed of a light source (18) and a photosensitive detector (19) between which a light beam is established, the interruption of which is detected by the passage of the wire (F) of the balloon (6).
- the two "optical barriers” are positioned so that one is cut when the balloon reaches the minimum diameter and the other the maximum diameter targeted.
- a logical treatment of the output of the two optical barriers indicates whether the diameter (D) of the balloon is less than the minimum, in the minimum / maximum values, or greater than the maximum value targeted.
- FIG. 7 shows an exemplary embodiment of such a measurement by means of a device composed of a linear or matrix CCD type optical sensor (20) associated with a ray-shaped light source (21) (for example LEDs). or laser).
- a ray-shaped light source (21) for example LEDs). or laser.
- the light ray is directed radially towards the axis of the spindle in line with the zone where the diameter of the balloon (6) is maximum, when the wire intersects said radius, it is emitted by reflection a light signal captured by the sensor CCD, a treatment locates the point of emission (22) along the axis parallel to the radius, which is representative of the diameter of the balloon at this point.
- An alternative embodiment by means of a matrix CCD type optical sensor associated with a stroboscopic light source synchronized with the rotation of the spindle, makes it possible to capture the image in two dimensions and therefore the shape of the wire (F) forming the balloon (6) when illuminated by lightning, and to deduce the diameter (D).
- the measurement of a magnitude representative of the diameter of the balloon can also be evaluated by means of an acoustic sensor disposed near the balloon (6). Due to its rotation in the air, the wire (F) generates an aerodynamic pressure wave detectable by a nearby acoustic sensor such as a microphone. The intensity of the signal detects, for a speed of rotation and a given type of wire, increases strongly when the distance between the balloon and the sensor decreases and therefore provides a magnitude representative of the diameter of the balloon. According to this means, the diameter setpoint (D) or the minimum / maximum values to be obtained are converted into a setpoint or minimum / maximum value of the intensity of the acoustic wave, valid for a type and a title of wire and for a spindle speed. .
- the measurement of a magnitude representative of the diameter of the balloon can also be evaluated by means of a force or vibration sensor, associated with a mechanical element arranged tangentially on the surface of the balloon (6). Due to its rotation in the air, the wire (F) creates friction or impact on the element a force or vibration detectable by the sensor. The intensity of the detected signal, for a given speed of rotation and a given type of wire, increases strongly when the trajectory of the balloon interferes with the mechanical element. Since the mechanical element is arranged in a position tangent to the minimum target diameter, the diameter setpoint (D) or the minimum / maximum values to be obtained are converted into a minimum / maximum value value value of the intensity of the force or vibration.
- the invention proposes a simple and reliable solution for forming a stable balloon, in particular for double-twist or direct-wiring processes, by using means for guiding the wire of reduced diameter, while offering a particularly advantageous volume in the balloon. This results on the one hand a significantly reduced power consumption, and on the other hand a voltage in the wire in the balloon much lower, compared to conventional methods.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0952446A FR2944296B1 (fr) | 2009-04-14 | 2009-04-14 | Procede et dispositif de transformation de fils par double torsion ou cablage direct |
PCT/FR2010/050694 WO2010119214A1 (fr) | 2009-04-14 | 2010-04-09 | Procédé et dispositif de transformation de fils par double torsion ou cablage direct |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2419554A1 true EP2419554A1 (fr) | 2012-02-22 |
EP2419554B1 EP2419554B1 (fr) | 2013-04-03 |
Family
ID=41510475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10723244A Active EP2419554B1 (fr) | 2009-04-14 | 2010-04-09 | Procédé et dispositif de transformation de fils par double torsion ou câblage direct |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2419554B1 (fr) |
ES (1) | ES2423318T3 (fr) |
FR (1) | FR2944296B1 (fr) |
WO (1) | WO2010119214A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11235945B2 (en) | 2016-02-02 | 2022-02-01 | Saurer Technologies GmbH & Co. KG | Device and method for determining the diameter of a yarn balloon formed by a continuous yarn at a workstation of a yarn balloon forming textile machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101876965B1 (ko) * | 2013-07-24 | 2018-07-11 | 코드사 테크닉 테크스틸 아노님 시르케티 | 벌룬 직경 제어 유닛 |
DE102015005328A1 (de) | 2015-04-27 | 2016-10-27 | Saurer Germany Gmbh & Co. Kg | Vorrichtung und Verfahren zum Ermitteln des Durchmessers eines durch einen laufenden Faden gebildeten Fadenballons an einer Arbeitsstelle einer Textilmaschine |
CN105624860B (zh) * | 2015-12-21 | 2017-11-10 | 浙江日发纺织机械股份有限公司 | 直捻机气圈测量装置 |
DE102016001164A1 (de) | 2016-02-02 | 2017-08-03 | Saurer Germany Gmbh & Co. Kg | Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer fadenballonbildenden Textilmaschine |
CN112875422B (zh) * | 2021-01-13 | 2022-07-05 | 绍兴文理学院 | 一种纱线退绕、卷绕装置及纱线绕线调整工艺 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA763744A (en) * | 1967-07-25 | W. Vibber Alfred | Apparatus for and method of plying strands | |
US2869314A (en) * | 1952-10-21 | 1959-01-20 | Alfred W Vibber | Twisting spindle balloon control |
US2731785A (en) * | 1953-01-26 | 1956-01-24 | vibber | |
US2989837A (en) * | 1960-01-22 | 1961-06-27 | Alfred W Vibber | Twisting spindle balloon control |
CH625484A5 (fr) * | 1977-10-05 | 1981-09-30 | Loepfe Ag Geb |
-
2009
- 2009-04-14 FR FR0952446A patent/FR2944296B1/fr not_active Expired - Fee Related
-
2010
- 2010-04-09 WO PCT/FR2010/050694 patent/WO2010119214A1/fr active Application Filing
- 2010-04-09 ES ES10723244T patent/ES2423318T3/es active Active
- 2010-04-09 EP EP10723244A patent/EP2419554B1/fr active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010119214A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11235945B2 (en) | 2016-02-02 | 2022-02-01 | Saurer Technologies GmbH & Co. KG | Device and method for determining the diameter of a yarn balloon formed by a continuous yarn at a workstation of a yarn balloon forming textile machine |
Also Published As
Publication number | Publication date |
---|---|
ES2423318T3 (es) | 2013-09-19 |
FR2944296B1 (fr) | 2011-07-22 |
EP2419554B1 (fr) | 2013-04-03 |
WO2010119214A1 (fr) | 2010-10-21 |
FR2944296A1 (fr) | 2010-10-15 |
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