EP2112258A2 - Dispositif et procédé d'enroulement d'une mèche sur une bobine - Google Patents

Dispositif et procédé d'enroulement d'une mèche sur une bobine Download PDF

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Publication number
EP2112258A2
EP2112258A2 EP20090004219 EP09004219A EP2112258A2 EP 2112258 A2 EP2112258 A2 EP 2112258A2 EP 20090004219 EP20090004219 EP 20090004219 EP 09004219 A EP09004219 A EP 09004219A EP 2112258 A2 EP2112258 A2 EP 2112258A2
Authority
EP
European Patent Office
Prior art keywords
roving
bobbin
drive
roller
winding
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
Application number
EP20090004219
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German (de)
English (en)
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EP2112258A3 (fr
EP2112258B1 (fr
Inventor
Christian Griesshammer
David Gehring
Fabian Lehner
Pascal Marti
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication date
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Publication of EP2112258A2 publication Critical patent/EP2112258A2/fr
Publication of EP2112258A3 publication Critical patent/EP2112258A3/fr
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Publication of EP2112258B1 publication Critical patent/EP2112258B1/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
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/36—Yarn-guide advancing or raising mechanisms, e.g. cop-building arrangements
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/36—Package-shaping arrangements, e.g. building motions, e.g. control for the traversing stroke of ring rails; Stopping ring rails in a predetermined position
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/40—Arrangements for connecting continuously-delivered material to bobbins or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • 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 device for winding a recoverable roving onto a bobbin, to a device for producing a roving with a winding device according to the invention and to a method for producing a roving using a roving production device according to the invention.
  • a winding device for winding a roving comprises a bobbin holder for rotatably supporting a roving bobbin, and a traversing device for oscillating the roving to be raised in the direction of the bobbin axis in order to obtain a winding in accordance with the specification.
  • Roving machines are used to produce a roving, which is used as a template for spinning to a fiber yarn, for example on a ring spinning machine, wherein a conveyor belt warped in a drafting of the roving and this fiber dressing then receives a twisting before it as a roving with protective rotation on a document spool is wound up.
  • the so-called flyer is used as the roving machine.
  • This roving machine is equipped with a drafting system and a spindle for winding the Flyerlunte on a Vorgarnhülse means of a wing to support the fuse against the centrifugal force caused by the spindle speeds.
  • the roving emerging from the drafting system is wound onto the roving bobbin via the vane rotating about a roving sleeve.
  • the roving receives by the rotating movement a protective rotation, before this is stored on the Vorgarnhülse.
  • the roving is guided by a wing arm of the wing and placed on the wing on the ram body via a pressing finger pressed against the roving body.
  • the Vorgarnhülsen are aligned vertically.
  • the flyer is an especially complicated and expensive machine in the spinning process.
  • the usual delivery of a flyer is 20 to 40 meters per minute.
  • this low production can not be increased with respect to the updraft system with flyer wings, since a higher speed is limited by the centrifugal force that must endure the wings.
  • this describes the WO-A-2005/026421 a process for producing a roving in which the twist distribution, similar to the air spinning process, pneumatic takes place in a nozzle block, wherein the roving undergoes a true spin by rotating air vortices.
  • the WO-A-2004/042126 also describes a pneumatic twist distribution, but here the twist distribution happens according to the two-nozzle principle. That is, the swirl-distributing member includes a first swirling chamber through which the sliver is passed and receives air-jet swirling. In a second swirl chamber of the swirl-distributing member, the sliver is also replaced by air jets with an opposite swirling action, so that a false twist is given to the sliver.
  • the Swiss patent application describes CH 00044/08 a swirl generation device in the form of false twist elements, e.g. B. Nitschelwalzen, in which the sliver alternately provided with S and Z turns and then automatically combined to form a roving self-twist.
  • the roving self-string is wound up in a winding device on a Vorgarnhülse.
  • the roving self-twist is first dissolved in the roving machine back into individual roving fiber strands.
  • a particularly suitable winding device is based on the known winding machine in which yarn is rewound from the cop onto a yarn package at high speed.
  • Such a device includes a coil holder, in particular a coil frame or a coil mandrel for rotatably supporting a roving bobbin and a traversing device for traversing the réellespulenden roving relative to the coil in the coil axis direction.
  • the roving can be in a parallel winding or Criss-cross winding are stored, being driven in the latter winding method with much higher traversing speeds.
  • the Vorgarnverlege wisdom comprises an arranged directly before the roving bobbin driven Aufwickearriwalzencru with nip line through which the roving to be aufwinende is clamped feasible.
  • the axis of rotation of the roving bobbin is preferably oriented horizontally.
  • the axis of rotation of the roving bobbin can also be aligned in any other arbitrary direction, in particular in the vertical direction.
  • the delayable roving has a certain strength, which on the one hand allows a later delay in a drafting system of a fine spinning machine and on the other hand allowed the up and down and transport of the roving to a drafting of a fine spinning machine without Fehlverfound.
  • the strength is preferably achieved by means of a protective rotation in the roving.
  • the roll axes of the winding delivery roller pair preferably run parallel to the axis of rotation of the roving bobbin. However, said roll axes can also in be arranged in any other direction, in particular transversely or perpendicular to the said axis of rotation of the roving bobbin.
  • the roll axes are preferably arranged perpendicular or substantially perpendicular to the incoming roving.
  • the lower or upper roll of Aufwindearriwalzencru is actively driven by corresponding drive means.
  • the non-driven roller is designed as a pressure roller.
  • the roving guide may be such that the roving issuing from the winding dowel roller pair partially wraps around the bottom roller or top roller of the dwindle roller pair. However, the roving guide can also be such that the yarn to be wound does not wrap around said upper or lower roll but tapers directly from the nip to the winding point on the roving bobbin.
  • the winding dewatering roller pair can be designed to be changeable with or without its own drive in the direction of the spool axis.
  • the Aufwickeunterwalzencru can be guided in particular changierbar on a cart.
  • the traversing device comprises a trailing-roller pair upstream or downstream of the traverse roller, by means of which the roving is changeable along the nip line of the winding-nip roller pair in the spool axis direction.
  • the roving bobbin can also be changed, while the roving to be wound up is guided onto the bobbin at a fixed point, ie via a fixed pair of winding rolls.
  • both the coil and the réellespulende roving can be changed in one of the aforementioned manner.
  • both of the aforementioned embodiments involve a larger moving mass, so that preferably only the roving leading element according to the invention is performed changierbar.
  • the said drive means of Aufwindearriwalzencrues are preferably connected to a control circuit for controlling the roving tension between Aufwindeunterwalzencrues and roving.
  • the driven roll of the upwind delivery roll pair and the roving bobbin preferably have different peripheral speeds.
  • One or both of the winding delivery rolls may abut or touch the outer circumference of the roving bobbin. Since roving and Aufwindearriwalzen have different peripheral speeds, the contact pressure is only so high that slippage due to the different speeds of the roving and Aufwindearrize is possible. Preferably, however, the rollers mentioned do not touch or lie against the roving bobbins.
  • the roving bobbin can be driven directly, d. H. Drive means drive a shaft forming the axis of rotation of the roving bobbin.
  • the roving bobbin can also be driven indirectly via a so-called winding roller. That Drive means drive the winding roller, also called drive roller, to which rests while exerting a contact pressure of the roving and this drives a frictional engagement.
  • the winding speed of the roving bobbin is correspondingly controlled or regulated via the winding roller drive.
  • the roving bobbin preferably has a so-called taching roll, which is in the peripheral speed of the Roving coil rotates. Tacho roll and roving therefore run at the same peripheral speed, so that measure the speed of the tachometer roller, the peripheral speed of the roving and fed into the control loop.
  • the roving guide can now be such that the yarn to be winded partially wraps around the tachometer or drive roller. But the roving guide can also be such that the yarn to be wound does not wrap around the tachometer or drive roller, but runs directly toward the winding point between the tachometer or drive roller and the roving bobbin.
  • the roving length between the nip and the winding point is as small as possible. This is achieved, for example, by trying to bring the nip of the Aufwindearriwalzencrues as close as possible to the roving on the one hand and on the other hand by providing a Sectionumschlingung the roving on the tachometer or drive roller and / or the lower or upper roll of the Aufwindeunterwalzencrues ,
  • the bearing force is z. B. one by a return element, for. As a spring, on the counter-element exerted restoring force. If the roving is driven by a drive roller, so the roving bobbin, z. B. over the creel, pivotally or displaceably guided. If the roving bobbin is driven directly, the taching roller or the following pressure roller is preferably pivotable or displaceably mounted.
  • the roving is a rotatably mounted pressure roller, wherein the Aufwindeunterwalzencru and the pressure roller are mounted directly or indirectly rotatably on first guide means and mechanically coupled to each other, and wherein the first guide means relative to the Roving bobbin are mounted pivotally or displaceably, so that the Aufwickeunterwalzencru are displaced together with the pressure roller together with the pressure roller together in the radial direction of the roving bobbin or
  • first return means are provided, by means of which the pressure roller is transmitted a contact pressure on the roving bobbin.
  • the first guide means are such that, as the coil diameter increases, together with the pressure roller, the mandrel roller pair are raised together with the circumferential increase. In this case, however, a restoring force is always exerted on the pressure roller, by means of which the pressure roller is pressed onto the coil circumference. In this way, the Aufwickearriwalzencru is always the same distance to the Spulenaussenin and does not need to be run separately.
  • the contact pressure can be reset via a reset element, such. As a spring, or be generated by an actively applied force.
  • the pressure roller of the Aufwindearriwalzencrus be connected via second guide means pivotally connected to the first guide means.
  • means are preferably provided, which exert a restoring force on the pressure roller on the second guide means and press this under exercise of a defined contact pressure on the lower roller of the Aufwindearriwalzencrues.
  • the return means can z. As a spring, or otherwise, force applying means.
  • the pressure roller is preferably a pressure roller, in particular a drive or taching roller on the roving bobbin.
  • the pressure roller is preferably mechanically coupled to the Aufwindeunterwalzencru via a guide arm.
  • the pressure roller is coupled via the first guide means with the Aufwindeunterwalzencru that this with the lower or upper roller of the Aufwindeunterwalzencrues a common axis of rotation forms, ie are stored coaxially.
  • the pressure roller in this case has a larger diameter than the lower or upper roller of the Aufwindearriwalzencrues with the same axis of rotation and takes the function of a spacer roller was. It can also be several pressure rollers, such. B. two pressure rollers with the intermediate coaxially mounted lower or upper roller may be provided.
  • the pressure roller can also serve to measure the peripheral speed of the roving bobbin, ie in function as a taching roller according to this embodiment.
  • the invention further relates to a device for producing a roving, which is characterized by a winding device according to the invention.
  • the roving production device includes a drafting, z. B. a Riemchenstrecktechnik, with at least one main driven pair of drawing rollers.
  • the drafting system also has an outlet roller pair following the main drafting roller pair, via which the sliver is fed from the drafting system to the swirl generating device.
  • the drafting system may occasionally have a pneumatic or mechanical compression device downstream of the default fields.
  • the drafting system is preferably a Doppelriemchenstreckwerk the known type with a main pair of drafting rollers, which is guided in each case an upper and Unterriemchen, and an outlet roller pair. Between the two roller pairs, a belt-guided main drafting zone is formed.
  • the drafting system may further include a pair of feed rollers upstream of the main drafting roller pair. Between Vorlaufwalzencru and Hauptverzugswalzencru a Vorverzugsfeld is then formed.
  • the pair of infeed rollers, the main pair of draw rollers and the pair of outfeed rollers may be driven by common or single independent drives.
  • the main drafting roller pair is driven independently of the outlet roller pair.
  • the inlet roller pair and the main roller pair may be driven by a common drive. But it may also be the outfeed roller pair and the main drafting roller pair driven by a common drive.
  • a common drive is connected via at least one transmission with one of the roller pairs.
  • the roving production apparatus includes a swirl generating device having a swirl generating member.
  • the swirl generating device may be an air nozzle twist generator with a swirl chamber according to WO-A-2005/026421 , an air nozzle twist generator with two vortex chambers according to WO-A-2004/042126 or a swirl generating device with a pneumatic or mechanical false twist element and a subsequent self-twisting device according to the Swiss patent application CH 00044/08 be.
  • a driven pick-up or take-off roller pair is preferably provided.
  • the take-off roller pair can be independent, d. H. be driven individually.
  • the take-off roller pair may also be driven by the pair of outfeed rollers via a common drive.
  • a common drive is connected via at least one transmission with one of the roller pairs.
  • a roving buffer may be provided which temporarily stores a roving excess between the roving delivery by the take-off roller pair and the roving take-off by the winding device.
  • Such caching can, for. B. be useful as part of a piecing, in which the rotational speeds of the individual drive motors must first be adjusted.
  • roving intermediate storage may also be desirable, so that despite interruption in the roving winding, the roving production can be continued at the same or reduced speed. It goes without saying that a roving storage can be useful even with temporary divergence of Vorgarnpurpose and Vorgarnaufwindung. Any intermediate roving buffer can be regulated via the primary control loop described below.
  • a Vorgarnputssensor may be provided between the pair of delivery rollers and the Aufwindearriwalzencru.
  • the periodically or continuously measured Roving tension can be used to control the roving buffer and / or the speed of the upwinding roller pair and the roving bobbin.
  • the roving production device may provide a common, primary control circuit for the drafting unit drives, the drive of the pair of withdrawal rollers and the drive of the coil drive to control the roving winding.
  • one of the drive motors coupled to the control loop assumes the position of a master drive motor.
  • the remaining drive motors coupled to the control loop assume the position of slave drive motors, the drive motor of the take-up delivery roller pair preferably being a slave drive motor.
  • the master drive motor is preferably a drafting device drive motor, in particular that drive motor which drives the main pair of drafting rollers.
  • the drive of the Aufwindearrizencru can also be part of this control loop, this drive would also be a slave.
  • the drive of the Aufwickearriwalzencru can, as described below, also be part of a secondary, the above-mentioned control loop subordinate control loop.
  • This secondary control circuit controls the roving tension between the upwinding roller pair and the roving bobbin. Below is spoken in this context of Vorgarnputsregelung.
  • the roving tension between the Aufwickearriwalzencru and the roving bobbin is of great importance.
  • the roving should be placed on the bobbin with as high a tension as possible so that the roving is wound as tightly as possible onto the bobbin.
  • the roving tension should not be too high so that it does not come to Albertvertecn or roving breaks.
  • the Vorgarnschreib should also remain as constant as possible, so there is no Fehlvermann.
  • any increased tension in the roving leads to a certain distortion behavior. These distortions arising during winding are basically no problem, as long as they remain constant and the roving processed in the subsequent spinning machine receives a uniform mass distribution. Does the roving tension change? However, at the winding point repeated and striking, it comes to different delays, the so-called Fehlvermann in roving, creating an irregular mass distribution in the roving, which has an irregular effect in the end yarn.
  • the Vorgarnschreibsregelung on Aufwindeech therefore has the task of keeping a certain voltage level, so that a strong roving of high density and on the other hand to guarantee a constant Vorgarnschreib by looming voltage changes in the roving are adjusted by changing the delivery speed of the Aufwindeunterwalzencrues immediately.
  • the Vorgarnputsregelung carried on the drive of Aufwindearriwalzenpases hereinafter referred to as delivery roller drive, which is preferably a torque-dependent drive.
  • the control is based on the detection of the drive torque M An of the delivery roller drive. It is therefore a so-called torque control.
  • the drive torque M An is composed of the air friction M Lu , which experiences the driven roller pair, the bearing resistance M La , the Walk resistance M Wa between the top and bottom rollers and the voltage of the incoming sliver M Lu-Einl .
  • Other system-related resistances, which are not specified here, are designated M Wi .
  • the moments M Lu , M La , M Wa and M Wi are independent of the roving guide sizes, which are determined by a reference at idle the Aufwindearriwalzencrues, possibly as a function of speed and incorporated as a fixed variables in the equation.
  • the only variables remaining are the tension of the incoming sliver M Lu-Einl and the outgoing sliver M Lu-Ausl .
  • To determine the moment M Lu-Ausl so only the tension of the incoming sliver must be known. This can be z. B. done by a voltage sensor before entering the Aufwindearriwalzencrues.
  • Such a device could, for. B. happen via a device for sag regulation.
  • a device for sag regulation directs the roving before entering the Aufwindeunterwalzencrues to form a loop from its conveying direction.
  • the deflection can z. B. pneumatically and / or by gravity or otherwise generated.
  • On a slack any changes in roving tensions are compensated for, so that the roving tapers to the take-up delivery roller pair with constant tension.
  • the said device can, for. B. combined with a roving.
  • the device may also include a dancer bar or dancer arm known in winding machines. The roving is guided over the loaded with a torque dancer arm or bow. As a result, a slack in the roving is generated between two roving guides.
  • The, z. B. spring-loaded, dancer arm or bow deflects the roving transverse to its direction and keeps it under tension. Due to the torque load of the dancer arm or strap, the roving loop produced is automatically increased when more roving is delivered than wound up. Conversely, the roving memory is able to deliver the roving when needed again. As a result, despite the different supply of roving or despite changing roving tension after the nozzle exit, a constant roving tension is achieved at the inlet to the Aufwickeierwalzencru. Furthermore, the voltage fluctuations caused when the roving is traversed as a result of the path changes in the roving run are also compensated.
  • the roving tension at entry is as small as possible, i. near zero, or at least a factor of 2 to 10 less than at the outlet. In this way, the roving tension or its variability during entry into the nip line in the torque calculation is less significant and the control of the roving tension at the outlet becomes more precise.
  • the roving tension at the inlet of Aufwindearriwalzencru known or constant it can be determined by determining the load torque, a change in the roving tension after the exit from the Aufwickearriwalzencru.
  • the load torque can, for. B. be determined by detecting the deviation of the rotor position in the drive motor or on the basis of the current consumption by the drive motor.
  • the moment M Lu-Ausl is greater and the delivery roller drive is relieved.
  • the torque control determines now via the load torque that the moment M An decreases and consequently an increase of the roving tension takes place at the outlet.
  • the control now increases the speed of the delivery roller drive, so that the roving tension at the outlet decreases again and the moment M An resumes its setpoint.
  • the delivery roller drive can, for. B. a BLDC (brushless DC motor) may be a synchronous, asynchronous or synchronous asynchronous motor.
  • the mentioned motors can be designed as servomotors.
  • Servo motors can also be designed as stepper motors.
  • a BLDC motor can, for. B. be equipped with a Hall sensor to determine the rotor position.
  • Synchronous and BLDC motors require a software-based imposition of the behavior on the detection of the moment by means of rotor position via a known method, such.
  • B. Hall sensors, measuring the zero crossing of the third harmonic, and appropriate control algorithms are known methods.
  • the torque-dependent drive of the delivery roller drive can be self-regulating if it is an asynchronous motor. This is done by its design to a suitable characteristic of the speed / torque curve.
  • the Ansynchronmotor is given here according to a predetermined target speed, a current of a certain frequency.
  • the motor is pulled, i. Relieves, and the speed increases.
  • the roving tension is reduced again, since the speed difference between delivery roller drive and coil drive decreases.
  • the roving tension at the outlet decreases, the engine load increases and the engine speed decreases.
  • the decrease in the delivery roller speed causes an increase in the roving tension as the speed difference between the delivery roller drive and the spool drive increases. In this way, the asynchronous motor itself regulates at a certain speed, i. at a certain moment equilibrium.
  • the invention also encompasses a method for producing a roving using the roving production device according to the invention.
  • the method is characterized in that one of the drives coupled to the primary control circuit occupies the position of a master drive motor and the remaining drive motors coupled to the control loop assume the position of slave drive motors, the drive motor of the take-up delivery roller pair being a slave drive motor, and the variable drive Speed of the master drive motor or the production speed is the control variable in the control loop.
  • Fig. 1 schematically shows a spinning station 1 of a roving machine (entire roving not shown) according to the invention.
  • This possible embodiment of the invention has a drafting system 22 (also shown schematically), which is supplied with a fiber structure 14 (eg a doubled stretched strip).
  • the drafting system 22 is a Doppelriemchenstrecktechnik with an inlet roller pair 6 and a main pair of drafting rollers 7, between which a Vorverzugsfeld is formed.
  • the rollers of the main drafting roller pair 7 are each surrounded by an upper or Unterriemchen, which are deflected in the fiber flow direction at a deflection bridge.
  • the inlet roller pair 6 and the main roller pair 7, and the associated lower rollers are driven by a common drive 2.
  • the lower rollers are connected via transmission (not shown) to the drive 2.
  • the main drafting zone is formed.
  • the drawn fiber structure 14 passes from the drafting device 22 into the twisting device 9.
  • the fiber structure 14 is twisted into a roving 15, ie the fiber structure is given a real twist at least partially (ie at least a part of the fibers of the fiber structure).
  • the shows FIG. 1 a take-off roller pair 10 with a nip line and a winding device 24 (also shown schematically) for the roving 15.
  • the outlet roller pair 8 and the Take-off roller pair 10, and the associated lower rollers are driven by a common drive 3.
  • the lower rollers are connected via gears (not shown) to the drive 3.
  • the twisting device 9 operates according to the so-called vortex method, a special air spinning process. Air-spinning processes are already known per se as a yarn spinning process, but it has only recently been known that a modified vortex process is also suitable for producing vortex roving.
  • the twist distribution means according to the invention only have to impart a protective rotation to the fiber structure, so that the sliver or roving formed thereby remains delayable.
  • This protective rotation is such that the roving remains delayable for the further processing process and the rotation distribution can possibly even be reversed. It is or would therefore be reversible in contrast to the rotation, which a fiber structure with conventional d. H. would be granted known air spinning devices.
  • the fiber strand is at least partially given a true twist, d. H. at least a portion of the fibers of the fiber strand, if not all, receive a real twist (twist) by means of an air flow. This real spin or this rotation is as mentioned only a protective rotation.
  • the roving or sliver produced according to the invention therefore has the same function and similar properties as a sliver produced with a conventional flyer.
  • the winding device 24 in the FIG. 1 is shown only schematically. This comprises a arranged immediately before the roving 12 traversing device 11 with a changeable Vorgarnspulenachscardi 16 Aufwindearriwalzencontract 17, 18 of a top roller 17 and lower roller 18, which form a nip 20 through which the roving 15 is guided.
  • the pair of rollers 17, 18 and the lower roller 18 is driven by a drive 4.
  • the winding device may be a cross winder, a precision cross winder, a wild cross winder, a step precision winder, or a parallel winder.
  • the roving bobbin 12 is held in a coil holder 19, which z. B. is designed pivotally for the purpose of bobbin change.
  • the roving bobbin 12 is driven by a winding roller 13, which in turn is driven by a drive motor 5.
  • a roving buffer 23 is arranged, which has a Vorgarn appointed.
  • the roving can z. B. include a suction device over which the roving is looped while covering a longer path looped.
  • the drives 2, 3, 4 and 5 and the roving buffers 23 are connected to a common control circuit 21.
  • the drive 2 of the main drafting roller pair is designed as a master drive, while the other drives have the status of slave drives.
  • Master drive means that the variable speed of this drive 2 is received as a control variable in the control loop and the other drives according to this controlled variable, which is in principle a measure of the production speed, are adjusted so that sets a dynamic balance between roving and Vorgarnaufwindung, which is characterized by a controlled, in particular controlled constant Vorgarnwear.
  • the drive 4 is additionally torque-controlled via a secondary control circuit of the type described above.
  • the torque control is preferably used when production has started up and is running at a constant level. When starting up as well as when shutting down the machine can be dispensed with a torque control for regulatory technical reasons.
  • Fig. 2a and 2b show a cross section through a winding device 41 with a roving bobbin 42a, 42b, the axis of rotation forming shaft is driven directly by the drive 45.
  • the roving bobbin 42a, 42b is a tachometer roll 43, which has two tasks to fulfill.
  • the first task is to determine the peripheral speed of the roving bobbin 42a, 42b.
  • the speed of the tachometer roller 43 is detected and evaluated via corresponding sensor means.
  • the second task is based on the Aufwindeierwalzencruzencruzencruzenzip 47, 48 despite changing outer circumference of the roving bobbin 42a, 42b always at a constant distance to the outer circumference of the roving bobbin 42a, 42b to lead.
  • the pivot arm 52 is pivotally mounted relative to the roving bobbin 42a, 42b, so that the tachometer roller can be displaced approximately in the radial direction as the coil circumference increases.
  • the pivot arm 52 is rigid, so that the almost radial movement of the tachometer roller 43 with increasing coil circumference also on the Aufwickearriwalzencru 47, 48 is transmitted.
  • the pivot arm 52 is pivotally mounted via a device 54. Return means (arrow), which act on the pivot arm 52, push the tachometer roller 43 against the outer circumference of the roving bobbin 42a, 42b.
  • the swing arm 52 performs a circular motion. Nevertheless, the movement of the tacho roll 43 with respect to the roving bobbin 42a, 42b can be considered as a radial movement in small steps.
  • the pressure roller 47 of the Aufwindearriwalzenpases 47, 48 is rotatably mounted on second guide means, in the form of a second pivot arm 53, and is pressed over this on the lower roller 48.
  • the necessary contact pressure on the lower roller 48 is exerted via return means (arrow) on the pivot arm 53.
  • the second pivot arm 53 is pivotally mounted on the first pivot arm 52.
  • the lower roller 48 of the Aufwindearriwalzenpases 47, 48 is driven by a drive 51. Further, the Aufwindearriwalzenpases 47, 48 upstream of a yarn laying device (traversing device) 49, by means of which the roving 44 to be laid is varied along the bobbin rotation axis.
  • a yarn laying device traversing device
  • the roving is pulled through the nip line 40 of Aufwindearriwalzenpases 47, 48 and fed to the Aufwinde gleich 55, at which the roving 44 is deposited on the spool.
  • the embarketician 55 is formed here by the nip line between the taching roller 43 and roving 42a, 42b.
  • the roving 44 can, as in the Fig. 2a, 2b shown partially wound around the lower roller 48 and the speedometer roller 43. In this way, the free path length of roving 44 between nip 40 and Aufwindeddling 55, which should be as short as possible because of possible Fehlvermann shortened.
  • the Fig. 2b shows the displacement of the speedometer roller 43 and deflection of the pivot arm 52 with respect to increasing coil circumference Fig. 2a ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Winding Filamentary Materials (AREA)
EP09004219.3A 2008-04-25 2009-03-25 Dispositif et procédé d'enroulement d'une mèche sur une bobine Not-in-force EP2112258B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6572008 2008-04-25

Publications (3)

Publication Number Publication Date
EP2112258A2 true EP2112258A2 (fr) 2009-10-28
EP2112258A3 EP2112258A3 (fr) 2014-04-02
EP2112258B1 EP2112258B1 (fr) 2016-05-11

Family

ID=40975033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09004219.3A Not-in-force EP2112258B1 (fr) 2008-04-25 2009-03-25 Dispositif et procédé d'enroulement d'une mèche sur une bobine

Country Status (3)

Country Link
US (1) US8042324B2 (fr)
EP (1) EP2112258B1 (fr)
CN (1) CN101565865B (fr)

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WO2013000097A1 (fr) 2011-06-30 2013-01-03 Maschinenfabrik Rieter Ag Doigt presseur pour enrouleur de mèche, enrouleur de mèche et procédé d'enroulement de mèche
WO2013010280A1 (fr) 2011-07-15 2013-01-24 Maschinenfabrik Rieter Ag Machine de bobinage
WO2015170155A1 (fr) * 2014-05-08 2015-11-12 Maschinenfabrik Rieter Ag Machine textile servant à la production de mèches et procédé de démarrage de la production de mèche sur une machine textile correspondante
CH709606A1 (de) * 2014-05-08 2015-11-13 Rieter Ag Maschf Verfahren zum Betrieb einer Textilmaschine, die der Herstellung von Vorgarn dient, sowie Textilmaschine.
CH709693A1 (de) * 2014-05-26 2015-11-30 Rieter Ag Maschf Verfahren zum Betreiben einer Textilmaschine sowie Textilmaschine zur Herstellung von Vorgarn.
CH712663A1 (de) * 2016-07-14 2018-01-15 Rieter Ag Maschf Verfahren zum Verarbeiten eines strangförmigen Faserverbands sowie Vorspinnmaschine.
CH713018A1 (de) * 2016-10-07 2018-04-13 Rieter Ag Maschf Vorspinnmaschine sowie Verfahren zur Produktion von Vorgarn.
CZ307263B6 (cs) * 2016-11-21 2018-05-02 Rieter Cz S.R.O. Zařízení pro sledování průvěsu přástu před navíjecím zařízením přípravárenského stroje pro výrobu přástu

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JP5797116B2 (ja) * 2012-01-05 2015-10-21 日特エンジニアリング株式会社 スプールに巻回された線材の緩み防止装置
US10029876B2 (en) * 2012-04-27 2018-07-24 Web Industries, Inc. Interliner method and apparatus
CH709607A1 (de) 2014-05-08 2015-11-13 Rieter Ag Maschf Verfahren zum Betrieb einer Textilmaschine zur Herstellung von Vorgarn, sowie Textilmaschine hierzu.
US10647540B2 (en) 2017-12-21 2020-05-12 Reel Power Licensing Corp. Low tension application coiler
DE102018112802A1 (de) * 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Textilmaschine sowie Textilmaschine

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WO2005026421A1 (fr) 2003-09-12 2005-03-24 Maschinenfabrik Rieter Ag Dispositif et procede de production d'une meche par un procede de filage pneumatique

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CH44A (de) 1889-01-15 Uhlenbroich G P Maschine zur mechanischen Bearbeitung faserhaltiger Pflanzentheile
WO2004042126A1 (fr) 2002-11-05 2004-05-21 Deutsche Institute Für Textil- Und Faserforschung Stuttgart Stiftung Des Öffentlichen Rechts Procede et dispositif pour produire une meche
WO2005026421A1 (fr) 2003-09-12 2005-03-24 Maschinenfabrik Rieter Ag Dispositif et procede de production d'une meche par un procede de filage pneumatique

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Publication number Priority date Publication date Assignee Title
WO2013000097A1 (fr) 2011-06-30 2013-01-03 Maschinenfabrik Rieter Ag Doigt presseur pour enrouleur de mèche, enrouleur de mèche et procédé d'enroulement de mèche
WO2013010280A1 (fr) 2011-07-15 2013-01-24 Maschinenfabrik Rieter Ag Machine de bobinage
US10472740B2 (en) 2014-05-08 2019-11-12 Maschinenfabrik Rieter Ag Textile machine and method for operating same
WO2015170155A1 (fr) * 2014-05-08 2015-11-12 Maschinenfabrik Rieter Ag Machine textile servant à la production de mèches et procédé de démarrage de la production de mèche sur une machine textile correspondante
CH709606A1 (de) * 2014-05-08 2015-11-13 Rieter Ag Maschf Verfahren zum Betrieb einer Textilmaschine, die der Herstellung von Vorgarn dient, sowie Textilmaschine.
CN106414821A (zh) * 2014-05-08 2017-02-15 里特机械公司 用于生产粗纱的纺织机及用于启动在这种纺织机上的粗纱生产的方法
CN106414821B (zh) * 2014-05-08 2020-03-10 里特机械公司 用于生产粗纱的纺织机及用于启动在这种纺织机上的粗纱生产的方法
US10563326B2 (en) 2014-05-08 2020-02-18 Maschinenfabrik Rieter Ag Textile machine for producing roving and method for starting the roving production on a corresponding textile machine
CH709693A1 (de) * 2014-05-26 2015-11-30 Rieter Ag Maschf Verfahren zum Betreiben einer Textilmaschine sowie Textilmaschine zur Herstellung von Vorgarn.
US10683188B2 (en) 2014-05-26 2020-06-16 Maschinenfabrik Rieter Ag Method for operating a textile machine, and textile machine for producing roving
WO2018011655A1 (fr) * 2016-07-14 2018-01-18 Maschinenfabrik Rieter Ag Procédé de traitement d'un assemblage de fibres en forme de toron ainsi que banc à broches
CH712663A1 (de) * 2016-07-14 2018-01-15 Rieter Ag Maschf Verfahren zum Verarbeiten eines strangförmigen Faserverbands sowie Vorspinnmaschine.
US10837128B2 (en) 2016-07-14 2020-11-17 Maschinenfabrik Rieter Ag Method for processing a strand-shaped fiber sliver, and roving frame machine
CN109790649A (zh) * 2016-10-07 2019-05-21 里特机械公司 用于生产粗纱的粗纱机和方法
CH713018A1 (de) * 2016-10-07 2018-04-13 Rieter Ag Maschf Vorspinnmaschine sowie Verfahren zur Produktion von Vorgarn.
CZ307263B6 (cs) * 2016-11-21 2018-05-02 Rieter Cz S.R.O. Zařízení pro sledování průvěsu přástu před navíjecím zařízením přípravárenského stroje pro výrobu přástu

Also Published As

Publication number Publication date
US8042324B2 (en) 2011-10-25
US20090289141A1 (en) 2009-11-26
CN101565865B (zh) 2017-03-01
CN101565865A (zh) 2009-10-28
EP2112258A3 (fr) 2014-04-02
EP2112258B1 (fr) 2016-05-11

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