WO2017080718A1 - Procédé de commande d'un dispositif de pose de fil à roue à ailettes, dispositif de pose de fil à roue à ailettes et bobineuse - Google Patents

Procédé de commande d'un dispositif de pose de fil à roue à ailettes, dispositif de pose de fil à roue à ailettes et bobineuse Download PDF

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Publication number
WO2017080718A1
WO2017080718A1 PCT/EP2016/073656 EP2016073656W WO2017080718A1 WO 2017080718 A1 WO2017080718 A1 WO 2017080718A1 EP 2016073656 W EP2016073656 W EP 2016073656W WO 2017080718 A1 WO2017080718 A1 WO 2017080718A1
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WO
WIPO (PCT)
Prior art keywords
thread
impeller
angular velocity
impellers
laying device
Prior art date
Application number
PCT/EP2016/073656
Other languages
German (de)
English (en)
Inventor
Franz Böni
Original Assignee
SSM Schärer Schweiter Mettler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SSM Schärer Schweiter Mettler AG filed Critical SSM Schärer Schweiter Mettler AG
Priority to EP16775721.0A priority Critical patent/EP3374304B1/fr
Priority to CN201680046524.1A priority patent/CN107848726B/zh
Publication of WO2017080718A1 publication Critical patent/WO2017080718A1/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
    • 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
    • B65H54/2836—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn
    • B65H54/2839—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn counter rotating guides, e.g. wings
    • 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
    • B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke
    • 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 method for controlling a wellgelrad- thread laying device, a impeller thread laying device and a winder.
  • thread-laying devices are used in thread winding processes, by means of which a thread to be wound up on a rotating bobbin is moved back and forth in the direction of the longitudinal axis of the bobbin by means of a high-frequency traversing movement.
  • different types of such thread-laying devices have been established. These can be functionally differentiated into those with a variable stroke width and those with a fixed stroke width of the traversing movement.
  • Yarn laying devices with variable stroke width allow for all the freedom for the winding structure when winding yarn bobbins, such as Chamfering of the coil flanks, rounding of the edges or the free positioning of a concernedwickels at a desired longitudinal position of the coil. Due to the high-frequency traversing movement of the yarn and the braking in the reversal points on the sides of the yarn package these designs are subject to heavy wear, lead to undesirable yarn accumulation in the reversal points and a higher energy consumption at high speeds.
  • Examples of thread-laying devices with a fixed stroke width are those with counter-threaded shafts or so-called impeller thread laying devices. These are mechanically bound to a fixed stroke width, but can be operated with a high double stroke rate per minute (over ⁇ double strokes / min).
  • the high Doppelhubwar are achieved in that the drive motor of the yarn laying device is always operated in one direction with a substantially constant engine speed.
  • the above-mentioned impeller thread laying devices have two impellers, which are driven in opposite directions about their respective axis of rotation.
  • the impellers are usually each provided with two or three wings, which extend away from the axis of rotation of the respective impeller in the radial direction.
  • the foundedspulende on the bobbin thread is performed during the winding process in constant change to the wings of the one and the other impeller and is thus reciprocated in the sense of a traversing movement relative to the coil in the direction of the coil longitudinal axis in rapid succession.
  • the other impeller is moved in each case in a so-called idle stroke.
  • This impeller can also be referred to as Leerhub impeller.
  • the thread is usually on a bow disc or plate, ie, guided on a so-called thread guide ruler, emerge from the thread guide contour, the wings of the vanes in operation and in which they dive again in the range of immersion points.
  • a thread transfer between the Vane wheels and a consequent stroke reversal of the traversing movement of the thread takes place in each case in the region of the immersion points of the wings of the vanes, which thus coincide in the axial direction of the coil with the reversal points of the traversing movement of the thread.
  • a so-called filament winding is produced whose quality is decisively determined by an exact axial position of the reversal points relative to the longitudinal axis of the spool.
  • the task relating to the thread-laying device is achieved by a thread-laying device having the features specified in patent claim 1.
  • the thread laying device according to the invention has the specified in claim 10 and the winder according to the invention the features specified in claim 15. Further advantages and advantageous embodiments of the subject of the invention will become apparent from the description, the dependent claims and the drawings.
  • the inventive method for controlling a yarn laying device with two counter-driven impellers around one on a rotating Spool foundedspulenden thread by means of a traversing movement with a deviating from a Grundhubbreite H N of the yarn laying device desired stroke width Hs between two reversal points (Ui, U 2 ) along the coil longitudinal axis back and forth, comprising the following steps:
  • the reversal points Ui, U 2 of the traversing movement of the thread define the desired desired stroke width Hs of the traversing movement of the thread relative to the spool.
  • the axes of rotation of the impellers and an aforementioned thread guide ruler of the yarn laying device are preferably positioned relative to each other depending on the respective predetermined for the traversing movement of the thread target stroke width of the thread such that the respective immersion points of the vanes with the associated reversal points orthogonal to the coil longitudinal axis Direction aligned with each other.
  • the theoretical compensation angular velocity Vc is thus the purely computational angular velocity with which the respective idle stroke impeller would have to be moved from the last reversal point Ui, U 2 to the next reversal point Ui, U 2 of the traversing movement of the yarn, around the yarn at the following reversal point Ui , U 2 from the other (during the Leerhubintervalls Ti thread-leading) impeller to take over.
  • the reversal points Ui, U 2 of the traversing movement in the axial direction are spaced less far from each other, than this at a determined by the constructive features of the yarn laying device Grundhubbreite HN of the yarn laying device, in which the two impellers are moved counter to each other without further control interventions with a constant and matching basic angular velocity.
  • the theoretical compensation angular velocity V c is therefore greater than the basic angular velocity of the two impellers corresponding to the basic stroke width HN of the yarn laying device.
  • the compensating angular velocity Vc of the idle-stroke impeller is correspondingly smaller than the basic angular velocity of the two impellers.
  • an overcompensation angular velocity V 0 c for the idle impeller during a first sub-interval Tu of the idle stroke interval T L is calculated on the basis of the theoretical compensating angular velocity Vc of the idling impeller.
  • the idle stroke Fconcegelrad during the first temporal sub-interval T of the Leerhubintervalls with the overcompensation angular velocity V ⁇ x is moved.
  • the time Leerhubintervall T L available for the control or regulation of the rotational speed of Leerhub impeller is divided into two time intervals TLi, T L2 : A time overcompensation interval of the speed control and one for the fine control / fine control of the rotational movement of the Leerhub-impeller on a predetermined working angular velocity control-technically advantageous calming interval.
  • the rotational movement of the idle-stroke impeller or the idle-stroke impeller is in the adjoining the first temporal sub-interval Tu second temporal sub-interval T L2 of the Leerhubintervalls T L to a predetermined working angular velocity V w of Leerhub impeller in the next reversal point Ui, U 2 of the traversing motion regulated so that the réellespulende on the bobbin thread through the Leerhub impeller from the thread-guiding other impeller in the next turning point Ui, U 2 of traversing movement with the predetermined working angular velocity V w and taken in the direction of the subsequent reversal point Ui, U 2 of the traversing movement can be moved.
  • the stroke width and thus the reversal points Ui, U 2 of the traversing movement of the thread during a winding process or for different winding processes can be varied variably.
  • a stroke width between 1 mm and 290 mm, in particular between 5 mm and 290 mm can be specified for the traversing movement of the thread.
  • coils of different lengths can be wound on the one hand become.
  • thread windings can be generated with oblique to the longitudinal axis side edges.
  • the inventive method allows unprecedented versatility of impeller thread laying devices. It should be noted that the inventive method can be used in existing retrofit even with existing impeller thread laying devices.
  • the transfer compensation angular velocity V 0 c preferably is selected such that it deviates by at most 20%, preferably up to 15%, particularly preferably by a maximum of 12% of the calculated theoretical constant compensation angular velocity V c.
  • a time start, ie a start time T 5 , of the second sub-interval T L2 of the Leerhubintervall T L is preferably based on a continuous integration of at the overcompensation angular velocity Voc from the start time of the Leerhub movement of each Leerhub impeller, ie from a takeover time Ti, T 2 of the yarn at the reversal point Ui, U 2 , by the respective working stroke executing other impeller to a control side continuously redetermined, ie temporally migrating test time TP in Leerhubintervall the Leerhub impeller and at the given work Angular velocity Vw achievable Angle distance of Leerhub-impeller from the test time T P to the acquisition time of the thread by the respective Leerhub-Flugirad in each subsequent (next) reversal point Ui, U 2 of the traversing movement calculated.
  • the test time T P is predetermined by the control device as the start time of the second partial interval T L2 .
  • the idle air taxi is adjusted by the control device to the predetermined working angular speed in order to take over the thread in the following turning point Ui, U 2 exactly at the time of takeover ⁇ , T 2 from the respective other impeller coming out of the working stroke.
  • the speed of the Leerhub impeller for the adoption of the thread in (temporally and spatially) next reversal point Ui, U 2 of the traversing movement can be controlled accurately and easily.
  • the thread laying device particularly preferably has an aforementioned thread guiding device, on which the thread concernedspulende on the spool is guided along.
  • the thread guide device preferably has a thread guide with a straight or a curved thread guide contour. Malfunction can be counteracted.
  • the two electric motors are particularly preferably driven by means of a common digital signal processor.
  • the method can be carried out in a simple and reliable manner and with little technical effort.
  • a particularly reliable and sensitive control of the electric motors can be achieved according to the invention by a so-called vector control of the electric motors.
  • the signal processor of the control device is preferably connected in each case via a vector controller with the electric motors.
  • a detection of the respective rotational position of the impellers about their axes of rotation is preferably carried out in each case with an angular resolution of 0.25 ° or less. As a result, the respective position and speed of the impellers can be determined particularly precisely.
  • the control device preferably has encoders for the electric motors of the impellers, by means of which the position of the impeller (or its vanes) and its respective angular velocity are detected.
  • the encoders can be designed, for example, as so-called 2-channel encoders with 720 pulses. By evaluating all flanks, in this case 2880 measured position results over a 360 ° rotation of the respective electric motor / impeller. Thus, a sufficiently high accuracy of the position detection and positioning accuracy of the vanes can be achieved. It is understood that the accuracy of the position detection and the positioning accuracy can be further increased if necessary.
  • a so-called zero-compensation of the rotational position of the impellers relative to each other is made. This can be done, for example, that the two impellers are moved with one of their wings against a defined stop.
  • the stop can be moved, for example, in the swept by the two impellers rotation range. This can be done by a translational relative movement of the axes of rotation of the impellers and the stopper in a direction orthogonal to the longitudinal axis of the coil.
  • the absolute rotational position of the two impellers is known before the start of a winding process with respect to the respective encoder position and can be used for control purposes.
  • the electric motors can thereby be controlled by the control device with an optimal load angle
  • the thread laying device according to the invention has two impellers, which are each driven in opposite directions about their axes of rotation by means of an electric motor.
  • the Fadenveriegevoriques has a control device for the Execution of the above-explained control method is programmed.
  • the control device can also be designed or programmed according to the invention for controlling a coil drive, with which the coil can be driven in rotation.
  • the electric motors are advantageously designed brushless, so that they have a long service life.
  • the electric motors can be designed in particular as three-phase hybrid stepper motors.
  • Such electric motors provide a high torque in relation to the size and inertia of the rotor. Due to the large number of poles of such motors, they can be operated particularly efficiently in the lower speed range at speeds of up to approximately 1500 revolutions / minute. In addition, only 3 half-bridges are needed to control such electric motors. In closed-loop operation with vector control, these motors achieve good overall efficiency.
  • the vector control also enables exact torque control of the electric motors. Together with the well-known mechanical data of the impellers, the control can be optimally adapted to the application, which enables short transient processes and high engine efficiencies.
  • the phase currents of the motor are preferably detected at the base of a control-side half-bridge circuit of the motors. By synchronizing the sampling point of the current with a PWM of the half bridges, the current can thereby be realized with a low hardware outlay of sufficient quality for the application.
  • the measurement information of the phase currents are needed in the vector control of the electric motors. Furthermore, this measurement information can be used to calculate a protection function of the electric motor (motor temperature calculation, monitoring of malfunctions or detection of mechanical obstacles).
  • the control device preferably has a digital signal processor, which serves for joint control or regulation of both electric motors of the impellers.
  • the impellers can be optimally synchronized with one another.
  • the power of the signal processor is dimensioned so that the signal processor within 5Q ⁇ S (control cycle) can perform a complete vector control, the calculation of solenoids of the impeller position and the position control.
  • the control device has two signal processors for driving / regulating the electric motors of the impellers.
  • this also requires an extremely fast data exchange between the processors and carries an increased risk of malfunction.
  • control device is designed to control / regulate a spool drive of a spool holder of the thread-laying device, by means of which the spool can be driven in rotation.
  • a rotational speed of the spool during the winding or winding process can be dyna mixed to wind the thread with different winding patterns (for example, step precision winding / cross winding) on the Spu le.
  • the invention relates to summarizing a method for controlling a yarn laying device with two impellers driven in opposite directions to a foundedspulenden on a rotating spool yarn by means of a traversing m it with a Grundhubbreite HN of the yarn laying device deviating desired stroke width H S between two reversal points Ui, U 2 along the coil longitudinal axis back and forth.
  • the respective impeller moved in idle stroke, d. H .
  • the invention further relates to a yarn laying device with a control device programmed for carrying out the method according to the invention and to a winding machine with such a yarn laying device.
  • FIG. 1 shows a dishwasher with a yarn laying device with two electric motor driven impellers for reciprocating a réellezuspulenden on a spool yarn relative to the coil longitudinal axis.
  • FIG. 3 shows a block diagram with the individual method steps of a method according to the invention for controlling the thread laying device from FIG. 1;
  • Fig. 5 is a graphical representation of the angular course of both impellers during a winding process of the yarn laying apparatus of FIG. 1, wherein a predetermined desired stroke width of the traversing movement lovedspulenden on the spool thread is smaller than a Normalhubbreite the Fadenveriegevorraum.
  • Fig. 1 shows a winding unit of a winder 10 with a thread laying device 12 for winding a thread 14 on a spool 16.
  • the réellespulende on the spool 16 thread 14 may for example be provided on a not shown in Fig. 1 Voriagespule, the coil 16 is arranged on a coil holder 18 and by means of a coil drive 20 about its coil longitudinal axis 22 in the direction of arrow 24 circumferentially drivable.
  • the thread laying device 12 is designed as a so-called impeller thread laying and has two impellers 26, 28 in each case.
  • the two impellers 26, 28 are independent of each other by means of an electric motor 30 about their respective axis of rotation 32, 34 driven in opposite directions.
  • the electric motors 30 and the impellers 26, 28 are arranged on a support frame 36.
  • the control device 38 has a signal processor 38a for jointly controlling the two electric motors 30 of the impellers (26, 28).
  • the signal processor 38a is connected to the two electric motors 30 via a respective vector regulator 38b.
  • the impellers 26, 28 serve to ceremoniesspulenden the coil 16 thread 14 in the direction of the coil longitudinal axis 22 relative to the rotating coil 16 in to move quickly back and forth to form during the Aufspulreaes designated 40 filament winding on the spool.
  • the support frame 36 in the present case comprises two mutually parallel extending longitudinal profiles 42, which are interconnected in a manner not shown in detail.
  • a (bearing) carriage 44 is arranged, which is displaceably mounted relative to the support frame 36 by means of a Versteilantriebs 46 along a reference axis designated 48.
  • the two impellers 26, 28 are rotatably mounted on the bearing carriage 44.
  • the Versteilantrieb 46 can be designed as an electric motor, in particular as a stepper motor.
  • the thread guide ruler 50 may, in particular, have an arcuate (convex) thread guide contour 52, against which the thread 14 to be wound is tensioned and guided during the winding process. It is understood that the thread guide ruler 50 can be made in several parts.
  • a stop means 54 is arranged for a Nuilab Dermat the rotational position of the two vanes.
  • the stop means 54 is movable by moving the bearing carriage 44 in the direction of the stop means 54 in a swept by the two Fügelckenn 26, 28 rotation range and serves to calibrate the control device 38 to a defined by the stop means 54 rotational position of the vanes 26, 28.
  • the impellers 26, 28 can be exactly synchronized in their respective rotational position about their axis of rotation 32, 34 in a simple manner before the beginning of the winding process.
  • For detecting a respective rotational position (rotational position) of the impellers 26, 28 are encoder 56.
  • the encoder 56 are connected for the purpose of data transmission in unspecified reproduced manner with the control device 38.
  • FIG. 2 shows the thread laying device 12 from FIG. 1 in an exposed plan view.
  • the two impellers 26, 28 each have three wings 26a, 26b, 26c; 28a, 28b, 28c. It is understood that the impellers 26, 28 also two or have four or even five wings.
  • the axes of rotation 32, 34 of the two impellers 26, 28 are arranged laterally offset from one another in the direction of the coil longitudinal axis 22 shown in FIG.
  • the réellespulende thread 14 is in the winding process in a conventional manner in quick change to the wings 26a, 26b, 26c; 28a, 28b, 28c of the counter-rotating impellers 26, 28 guided.
  • the wings 26a, 26b, 26c; 28a, 28b, 28c of the impellers 26, 28 respectively emerge at respective points of emergence Ai, A 2 from the thread guide contour 52 of the thread guide ruler 50 and enter the thread guide contour 52 of the thread guide ruler 50 in the region of immersion points Ei, E 2 again.
  • a thread transfer between the impellers 26, 28 is in each case in the area or at the dipping points Ei, E.
  • the traversing movement of the yarn can be in the direction of the longitudinal axis of the coil 22 (FIG. 1) or in the direction of the same parallel arranged traverse axis 58 (Fig. 2) only a fixed stroke width, ie, a so-called normal stroke width H N , have.
  • the thread 14 can be displaced relative to the nominal stroke width H s deviating from the normal stroke width H N Coil longitudinal axis 22 (Fig. L) and oscillating axis 58 are moved.
  • a target stroke width Hs is entered with reversal points Ui, U 2 of the traversing movement of the thread 14, the example smaller than the normal stroke width H N of the thread-laying device 12 elected est.
  • the center of the respective traversing movement of the thread 14 is designated by Hc.
  • FIG. 3 shows the individual steps of the method 100 according to the invention as a block diagram.
  • a first step 102 the respective axial position of the reversal points Ui, U 2 of the traversing movement of the thread 14 relative to the coil longitudinal axis 22 (Fig. 1), and thus the desired Soli stroke width H s of the thread in the direction of the traversing axis defined or predetermined .
  • the axes of rotation 32, 34 of the two impellers 26, 28 and the thread guide ruler 50 are preferably positioned relative to one another in dependence on the Sol!
  • Stroke width Hs of the thread 14 predetermined for the traversing movement such that the respective immersion points Ei, E 2 of the impellers 26, 28 are aligned with the respectively corresponding predetermined reversal point Ui, U 2 in the direction of the traverse axis 58.
  • a theoretical constant compensating angular velocity V c is determined for the idle stroke during idle stroke interval T L (ie the thread respectively not leading during the idle stroke interval T L ), and consequently the respective idle stroke vane 26, 28, for a takeover of the thread 14 (Fig. 1) by the idle stroke impeller 26, 28 of the respective thread-guiding other impeller 26, 28 in the temporally subsequent predetermined reversal point Ui, U 2 of the traversing movement of the thread 14 (Fign ).
  • an overcompensation angular velocity Voc for the idle impeller 26, 28 during a first fractional interval T L i of the idle stroke interval is calculated based on the theoretical constant compensation angular velocity V c .
  • step 108 the idle impeller 26, 28 is driven at the overcompensation angular velocity Voc during the first temporal sub-interval T L i. This is done by appropriate control of the electric motor 30 of the idle stroke moving idle stroke impeller 26, 28 on the part of the control device 38th
  • the idle impeller 26, 28 during an on the first sub-interval T L i immediately following the second sub-interval T L2 Leerhubintervall T L of the overcompensation angular velocity V 0 c to a predetermined working angular velocity V w of Leerhub-impeller 26, 28 in the following reversal point Ui, U 2 adjusted the traversing movement to the thread 14 with the idle impeller 26, 28 from the thread leading other impeller 26, 28 in the next turning point Ui, U 2 of the traversing movement with the predetermined working angular velocity Vw take.
  • steps 102 to 110 or 104 to 110 are repeated for winding the thread 14 on the spool 16 with the predetermined desired stroke width Hs, preferably continuously.
  • the respective working stroke of the impellers 26, 28 upstream calming phase has the consequence that without a speed adjustment of the impellers 26, 28 at the desired time, the yarn transfer at the reversal point Ui, U 2 is possible.
  • the settling phase is therefore compensated according to the invention by an overshoot of the theoretical compensation angular velocity V c of the impeller 26, 28 to an overcompensation angular velocity Voc.
  • a long calming phase favors a working-speed V w of the impeller 26, 28 in a small tolerance range.
  • the resulting high overcompensation angular velocity Voc requires a great dynamics of the system. It is therefore advantageous to keep the settling phase, ie the second subinterval T of the Leerhubtntervalls T L , each as small as necessary, since this allows an overcompensation angular velocity Voc close to the theoretical constant compensation angular velocity V c .
  • the overcompensation angular velocity Voc for the narrowest, usable nominal stroke width Hs of the yarn laying apparatus is in each case equal to or less than 120%, preferably equal to or less than 112%, of the theoretical constant compensating angular velocity V c . If the desired lifting rakes H s of the traversing movement of the thread 14 are greater than the normal stroke width HN of the thread laying device 12, the vanes 26, 28 are moved more slowly in the respective idle stroke interval T L than in their respective working phase. Again, there results a theoretical compensating angular velocity V c of the respective idling impeller 26, 28, which serves as a basis for the calculation of the overcompensation angular velocity Voc.
  • the overcompensation angular velocity Voc is not less than 88% of the theoretical compensation angular velocity Vc.
  • the overcompensation angular velocity Voc moves from the normal stroke HN, for example, in a range of -12% to + 12% of the theoretical compensation angular velocity V c .
  • the starting point is, for example, at the first reversal point Ui to the left of the lifting center H C (FIG. 2) with the first vane 26a of the first vane wheel 26.
  • the first vane 26a of the first impeller 26 moves the yarn at the working angular velocity Vw required for the winding or winding process.
  • the thread 14 is taken over by the second impeller 28 with the first wing 28a and the working angular velocity Vw.
  • the first wing 26a of the first impeller 26 is now moved by driving the electric motor 30 of the first impeller 26 in the first sub-interval T L i of the Leerhubintervalls TL with the Uberkompensations angular velocity Voc.
  • the temporal beginning of the second sub-interval T L2 of the Leerhubintervalfs T L - in other words the control - or control-technical calming - is by the intersection of the overcompensation angular velocity Voc and the predetermined working angular velocity Vw of each Leerhub impeller in the following reversal point U 2nd characterized.
  • the second wing 26b is therefore also like the first wing 26a in the first subinterval T L i Leerhubintervall T L with the overcompensation angular velocity Voc and in the second subinterval T L2 of Leerhubintervall T L , ie the subsequent calming phase T L2 , with the working Angular velocity V w moves to take over the thread 14 exactly at the transfer time T 2 at the reversal point Ui left of the lifting center H c from the second impeller 28.
  • this test time T P i, T P2 , T Pn is determined by the Control device as the starting time T s of the second Leerhubintervall T L2 predetermined. This can be done in real time.
  • the electric motor 30 of the (idle stroke) impeller 26, 28 is controlled by the control device 38 from the start time T S such that the idle stroke impeller 26, 28 is adjusted during the second Leerhubintervall T L2 to the predetermined working angular velocity Vw, so the idle-stroke impeller 26, 28 takes over the thread 14 in the following reversal point Ui, U 2 of the nominal stroke width H s exactly in the respective takeover time Ti, T 2 of the respective other impeller 26, 28 coming from the working stroke.
  • the thread 14 is subsequently from the impeller 26, 28, after this has taken over the thread 14, with the respective desired working Winkei Marie V w on the desired stroke width H s in the direction of the traverse axis 58 (FIG.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Winding Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé (100) de commande d'un dispositif de pose de fil comprenant deux roues à ailettes (26, 28) pouvant être entraînées en sens contraire, afin d'animer d'un mouvement de va-et-vient un fil à bobiner sur une bobine rotative au moyen d'un mouvement de va-et-vient présentant une largeur de levée théorique (Hs) différente d'une largeur de levée de base (HN) du dispositif de pose de fil entre deux points d'inversion (U1, U2) le long de l'axe longitudinal de bobine. Selon l'invention, la roue à ailettes (26, 28) déplacée respectivement en course à vide, c'est-à-dire la roue à ailettes à course à vide (26, 28) respective, est accélérée ou freinée au cours de son intervalle de course à vide (TL) en premier lieu à une vitesse angulaire de surcompensation (Voc), qui est déterminée sur la base d'une vitesse angulaire de compensation (Vc) constante théorique nécessaire à la réception du fil au point d'inversion (U1, U2) suivant du mouvement en va-et-vient du fil, puis est déplacée à sa vitesse angulaire de travail (Vw) prédéfinie, afin de recevoir le fil au cours du point d'inversion (U1, U2) suivant du mouvement de va-et-vient du fil de l'autre roue à ailettes (26, 28) guidant le fil à la vitesse angulaire de travail (Vw). L'invention concerne en outre un dispositif de pose de fil ainsi qu'une bobineuse comprenant un dispositif de pose de fil de ce type.
PCT/EP2016/073656 2015-11-10 2016-10-04 Procédé de commande d'un dispositif de pose de fil à roue à ailettes, dispositif de pose de fil à roue à ailettes et bobineuse WO2017080718A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16775721.0A EP3374304B1 (fr) 2015-11-10 2016-10-04 Procédé de commande d'un dispositif de pose de fil à roue à ailettes, dispositif de pose de fil à roue à ailettes et bobineuse
CN201680046524.1A CN107848726B (zh) 2015-11-10 2016-10-04 用于控制叶轮式纱线布设装置的方法、叶轮式纱线布设装置以及络纱机

Applications Claiming Priority (2)

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DE102015222044.3 2015-11-10
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CN107848726A (zh) 2018-03-27

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