EP1222133B1 - Verfahren und vorrichtung zum aufwickeln eines fadens auf eine spule - Google Patents
Verfahren und vorrichtung zum aufwickeln eines fadens auf eine spule Download PDFInfo
- Publication number
- EP1222133B1 EP1222133B1 EP00965706A EP00965706A EP1222133B1 EP 1222133 B1 EP1222133 B1 EP 1222133B1 EP 00965706 A EP00965706 A EP 00965706A EP 00965706 A EP00965706 A EP 00965706A EP 1222133 B1 EP1222133 B1 EP 1222133B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traverse
- stroke
- winding
- reversal
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- 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
- B65H54/2827—Traversing devices with a pivotally mounted guide arm
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- 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
- B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
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- 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
- B65H54/325—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke in accordance with growth of the package
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- 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
- B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
- B65H54/381—Preventing ribbon winding in a precision winding apparatus, i.e. with a constant ratio between the rotational speed of the bobbin spindle and the rotational speed of the traversing device driving shaft
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- 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
- B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
- B65H54/385—Preventing edge raising, e.g. creeping arrangements
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- 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 and a device for winding a thread on a spool.
- EP 453 622 B1 proposes a device with a thread guide and a Yarn carrier before, wherein the carrier is guided in a groove.
- the device includes a drive motor and a programmable controller.
- the Thread guide is located near a reversal point, the engine with a operated higher current than the final current. The power required for operation is below the rated current when the yarn guide is in the remaining area.
- the basic programs saved. In the control, the calculation of the paths, speeds and accelerations for the motor movement due to the application coming winding laws. Parameters that can be stored include the Basic stroke and basic stroke variation for producing soft coil edges.
- a stepper motor operates as Drive motor between center of stroke and a reversal point against a torsion spring. Near a reversal point, the spring constant is increased, the power supply on Stepper motor increases and reduces the frequency of its control pulses. Thus should the engine comes to a standstill at the reversal point. A corresponding monitoring is not scheduled.
- a sensor is provided, which detects the Errors at this point in the traverse stroke allows. A traverse stroke is always from controlled from this point by means of a pulse sequence. An exact determination of the Reversal points can not be deduced from the script.
- the method known from EP 453 622 B1 is subject to physical and technical limitations.
- the stepper motor is physically a spring mass system is that tends to oscillate with rapid changes in position and makes uncontrollable movements.
- the reference or zero position will be during Pass over a movement of the thread guide twice.
- the positioning accuracy outside the zero position is not defined. At higher speeds of For example, 1000 m / min production speed, this method can therefore no longer work with the necessary accuracy.
- EP 248 406 A2 describes a traversing device which has means for Calculation of the strokes according to the rotation numbers of the coil and the Winding ratio according to the packing diameter. However, this shows Invention also no solution to the problems at the coil edges.
- WO 98/42606 discloses a method for controlling a by means of a Stepping motor driven traversing device, and a traversing device.
- the Position of a reciprocating within a traverse stroke Traversing thread guide is determined by the position of a rotor of the stepping motor, wherein the rotor is within a stator of the stepping motor with a plurality Windings moved.
- the aim of the process is to use the traversing yarn guide in the Reversal area to lead with optimal utilization of the stepper motor.
- the traversing thread guide is driven as vibration-free as possible in the stroke reversal area become.
- a method and a device according to the respective preamble of claims 1 and 21 are known, through which a thread should be accurately positioned within a traverse stroke. Furthermore, should an optimum utilization of the electric motor (stepper motor) for each traverse stroke to be guaranteed.
- stepper motor electric motor
- a difference signal is generated to control the stepper motor.
- the target position is determined exclusively by the electric motor.
- an immediate and direct reaction of the stepping motor takes place according to this method, so that the deviation error of the traversing thread guide is corrected immediately.
- the acceleration and deceleration of the thread guide is controlled such that the lengths of the reversal distances and thus the thread tray at the ends of the Coil within reversing distances changes. This is the thread reversal earlier or be initiated later to Changierhubende, whereby the thread with is deposited at different angles to the end face of the coil. It should become one uniform distribution of the thread behind the turning point result.
- the Movements of the thread guide to the reversing distances is here by a predefined temporal program sequence.
- This known method also allows the acceleration and Delay of the thread guide as a function of the crossing angle, Coil diameter and traversing stroke controlled within the reversing distances becomes.
- the traverse stroke by selecting a Breathing stroke to be changed.
- DE-A-198 20 464 shows a motor construction specific for use in has been designed a rotary actuator.
- the winding types of a coil are divided into three main types: Wilde Winding, precision winding and step precision winding.
- Wilde Winding There is an inherently fixed relationship between coil surface speed and the speed of threading when off the so-called "wobble" (to avoid mirror images) is disregarded.
- the crosshair angle is kept constant, while the Turn ratio, i. the number of spool rotations per double stroke, at increasing diameter of the coil is smaller.
- the resulting package has a very uniform density, but the poor drainage properties and also has irregularities after dyeing.
- the precision winding is created by a constant ratio between the Spool speed and the speed of threading. That's how it stays Winding ratio equal throughout the winding process.
- the Coil has good drainage properties and in general a much larger one Run length with the same bobbin volume.
- the waning causes Crossing angle an increase of the winding density to the outside, resulting in the dyeing can lead to uneven penetration of the dyes.
- the step precision winding is a precision winding in steps. After each step, the crosshair angle returns to the original degree returned, whereby an approximately constant crossing angle is achieved and the turns ratio is reduced in stages. By the almost constant Crossing angle becomes the stability of the package and a uniform density guaranteed.
- the defined thread section of the precision winding prevents Picture zones and allows a high winding density.
- the resulting coil has good Run-off characteristics and a significantly increased run length compared to the wild Winding.
- US-B-4,515,320 shows the required relationships between the crossing angle of the package (coil) and the turns ratio as a function of the coil diameter.
- the propulsion technology proposed therein a servo-controlled belt drive connection between the spool and the However, traversing is not suitable, an effective control at higher To allow winding speeds.
- the step precision winding is a longer time for the production of cylindrical coils been provided.
- Recently, drives for winding units have appeared, the one Better support for changing the stroke width during the winding cycle. Examples These drives are already mentioned in the previous chapter on the prior art.
- EP 629 174 B1 is a conventional method today and a corresponding device for winding a thread with a Step precision winding known.
- jumps of one find higher Windungshunt to a lower Windungshunt instead, if the Crossing angle at the given turn ratio to a lower limit has fallen.
- the jump height is limited by an upper limit, so that unacceptable sudden changes in winding ratios are avoided.
- a Fadenchangleiter, with a step precision winding can be realized can, is from WO 99/65810, in particular in combination with a controller according to WO 00/24663.
- the software-oriented control of the thread changer (Pointer) consists of a "fixed default" part, not the user can (or should) be influenced and a part requested by the user, the preferably consists of certain winding parameters.
- winding parameters can For example, you can enter: crossing angle, bandwidth, break table, Hubatmung and stroke course.
- the Possibility of using the new drive technology better for the winding technology As a result, it may be possible to design a coil package form improve, such that the wound yarn at the ends of the traversing stroke reversal better and more accurately laid.
- the thread by means of a Precision winding or step precision winding under consideration of a a user predeterminable or predetermined packing form of the coil closer to Optimum be laid.
- the invention is characterized by the features of the claims 1 and 21 solved.
- the invention provides a winding unit which comprises at least one winding mandrel and a traversing, wherein the traversing is provided with such a controllable drive, that the stroke width is variable over the winding cycle.
- the invention is particularly designed for use in connection with a pivoting drive, wherein the movements of a reciprocating yarn guide are determined by the movements of an engine rotor and the motor is provided with a control, which rotates the rotor between reversal points, a rotational angular distance of less than 360 ° (preferably less than 180 °).
- the predetermined stroke width should be taken into account.
- the traversing drive depending on the Coil speed and a predetermined turn ratio controlled, the effective turn ratio of the control of a variety of possible Windungsmayn is selected, both as a function of parameters. which influence the crossing angle as well as depending on the effective one Stroke width.
- the stroke width to be maintained by the traversing becomes predetermined, with the specified stroke width relative to a reference (Preferably opposite to the center of stroke) is defined, which in the by the Spulaggregat defined environment, in particular with respect to the spool, a has predetermined, preferably fixed, orientation.
- the target reversal points are dependent on the defined stroke width defined.
- the target reversal points are preferably changeable or correctable to comply with the given stroke width favor.
- the average speed of the thread guide over a Stroke from the coil speed based on the effective turns ratio and the derived effective stroke width.
- the movement of the thread guide is controlled via a stroke in accordance with a predetermined movement characteristic (profile), whereby a mean speed of the thread guide specified by the control is maintained.
- the movement characteristic preferably defines acceleration values and / or velocity values which occur at predetermined locations are to be complied with over the stroke.
- the predetermined by the controller integral of the average speed of the thread guide is maintained.
- the optimum motion characteristic may be determined empirically and may be variable (preferably) over the winding travel (ie, between the beginning and end of the formation of a particular coil).
- the invention comprises a method for operating a thread winding machine, in particular a winder, wherein by means of a thread guide a traversing the thread transverse to the thread withdrawal direction alternately between two reversal points within a traverse stroke is guided back and forth to a rotating coil to be relocated.
- a thread guide by means of a thread guide a traversing the thread transverse to the thread withdrawal direction alternately between two reversal points within a traverse stroke is guided back and forth to a rotating coil to be relocated.
- the method for operating the thread-winding machine provides that an end point of the reversal of the thread guide is determined at a reversal point and, depending on the position of the end point, corrects the effective traverse stroke (the effectively determined stroke width) at a subsequent stroke, preferably shortened or lengthened is.
- the set traverse stroke which was determined as a function of the specified stroke width, remains constant (unchanged).
- the inaccuracy of the reversal can be counteracted by the fact that the Control circuit equipped with a kind of "memory function" and expanded.
- the position becomes actual reversal point detected when changing direction of the thread guide.
- This position value is stored and affects the control of the drive such that at a later stroke depending on the position of this position value of the traverse stroke, i. the effective stroke of the thread guide is changed (shortening or lengthening).
- the (effective) traverse stroke is dependent on the difference of the Endpoint corrected from reversal point.
- the two reversal points of a Changierhubes are used in this context as target values and the effective Endpoints are considered as actual values.
- the resulting difference is a target-actual deviation, which controls the effective traverse stroke accordingly, so that the desired and accurate coil edges arise.
- the setpoint reversal points are therefore changed as necessary as a function of the effective reversal points (actual values) in order to be able to maintain a setpoint stroke width.
- the present invention aims to have the endpoints of the effective traversing strokes occur repeatedly at predetermined locations.
- a winding travel can be considered as a whole, wherein - as a further difference - the position of the thread guide when storing a thread on a spool is of importance.
- the difference of the actual endpoint from the target reversal point averaged over several strokes.
- This averaging can be done, for example, by a sliding Averaging will be made on an ongoing basis, whereby a correction only then must be made, for example, if a significant deviation or Drift of the mean value is determined.
- the method provides that the traverse stroke in any Hubwert the winding travel is corrected. This makes this procedure variable, since the correction is made only when certain conditions for control of the Drive are given. For example, the controller sets itself and automatically determines when the traverse stroke is shortened or extended. Alternatively, by a Users are set, for example, after a definable number Double strokes the traverse stroke is corrected.
- an (effective) tracking error can be calculated.
- the setpoint values for the reversal points By adjusting the setpoint values for the reversal points, the following error in be eliminated the sense that the effective stroke width to the target stroke width is adjusted. This is possible because the reversal points are not fixed but determined by the controller in response to the desired stroke width can be.
- the tracking error as a function the traversing speed and / or acceleration in the control taken into account become.
- the tracking error can be stored, preferably in one so-called table as a function of the traversing speed and / or the Acceleration. These tables can be used to a following To calculate the trajectory.
- the Lifting width varies during the winding cycle.
- the stroke width can also be varied for example by means of a predetermined Hubatmung, which is positive on the thread distribution in the Hubumledge and thus on the coil hardness distribution effect.
- the A method is characterized in that the course of the stroke setpoint reversal points for a winding travel can be specified and the given course in dependence influenced by detected deviations (at the reversal points), ie is corrected.
- the course of the desired stroke reversal points is preferably determined by the Entering a Hubbreitenverlaufes determined.
- a thread winding machine proposed, in particular winding machine, with a traversing device, wherein by means of a thread guide a traversing the thread transverse to Thread withdrawal direction alternately between two reversal points within a Changierhubes is passed back and forth to misplaced on a rotating spool be, and the traversing device has an oscillating drive.
- the machine is a detection device for detecting an end point in the stroke reversal of the thread guide and a Control device for correcting the effective traverse stroke, preferably Shortening or lengthening, depending on the position of the end point.
- the Arrangement allows compliance with a given (nominal) stroke width.
- the aim of the invention may also be, in particular a precision winding or Step precision winding to allow taking into account a preferred or predeterminable packing form of a coil.
- This can be done in dependence of a predetermined winding ratio and the speed of the coil of the drive of the Yarn guide or the traversing device are controlled such that in the existing reel speed or a change in the reel speed the Windungsdorf is maintained almost exactly.
- the turns ratio results from the quotient of the coil speed and the number of double strokes (as a divisor). By complying with the turns ratio for a given and current Speed of the coil is the time for a stroke set and defined. Based on These sizes, the drive or servo drive of the thread guide can be controlled accurately and be driven.
- the effective stroke width can be varied during the winding cycle.
- One possibility is the continuous change of the stroke width during the winding cycle.
- Through this Modulation may have a defined packing geometry e.g. produced conical coils become.
- Another variant is the Hubatmung, in which the effective stroke width is periodically changed to a heaped thread tray by accelerating and delay in the stroke reversal may arise, neglecting. This only has an influence on the uniformity of the thread distribution over the stroke and on the Characteristic of saddles (hard coil edges).
- both variants be combined with each other.
- the parameters for the stroke installation and / or Hubatmung can be entered for example by an operator.
- the thread laying on the spool in dependence of Coil diameter and / or the time (sequence) and / or the number of strokes and / or the Hubbreite done.
- the thread laying on the spool in dependence of Coil diameter and / or the time (sequence) and / or the number of strokes and / or the Hubbreite done.
- the Hubatmung can be parameterized u.a. in at least three sizes: lifting period, stroke amplitude and stroke distribution.
- the lift period describes the length of the cycle of a lift breath (e.g., 100 to 4000 Traversing strokes).
- the stroke amplitude By means of the stroke amplitude, the increase or decrease in the Nominal Hubs are determined (eg in ° / oo of Nominathubes).
- the relationship Rise to drop in stroke amplitude is expressed by the stroke distribution (unit :% of the period).
- These parameters can be both length-independent and be independent of speed. In a further embodiment, it is also possible not only to repeat a combination of these three parameters, but also with to retrieve at least one other combination in turn.
- the Hubverlegung is preferably by support points or support points, which relate to the diameter, defined and interpolated in between. Instead of the diameter, the time or a speed can be used as a setting parameter.
- a speed profile of the thread guide or the traversing device is set between the reversal points of the stroke.
- the velocity profile serves as setpoint specification for the control of the drive. Due to the profile of the profile, for example, by nodes or points is a predeterminable coil form wound up. The profile of the profile influences in particular the Thread deposit and thus the coil hardness distribution. Because of these properties too Other operating parameters can be affected by multiple profiles Speed stored in a control computer of the drive and to retrieve be provided.
- the velocity profile is independent of formed the stroke widths during a winding cycle and / or on a medium Installation speed related. Because on the thread winding machine different lengths of coils can be produced by the Hub width independent speed profile allows, so many different long bobbins can be used on the machine. Also the reference to a medium laying speed also makes the speed profile independent, since no absolute speeds e.g. through the thread guide be driven. The relative speed or relative velocity profile results in different long coils generally the same or similar Coil shapes.
- the average laying speed is given by the temporal integral of the Speed over a hub. The speed course must therefore over an entire stroke exactly the average speed included. Starting from Defaults and accelerations for the drive can be determined or be calculated.
- the reel speed with a conventional speed measurement it is difficult to achieve the required accuracy.
- causes are either a too low resolution of the measurement result or too short a period of time the measurement interval.
- the approach can be chosen be that a certain number of coil revolutions or fractions of Coil revolutions is assigned immediately a certain stroke. According to the invention, for a given turns ratio and a predetermined Coil speed a pulse of a target stroke counter a certain stroke assigned.
- the target stroke counter is at a pulse increased by a certain amount. For example, provides a tachometer on a coil a certain number of pulses per coil revolution. Leaves every impulse of the speedometer For a selected Windungsverphasettnis a very specific way of the stroke assign. This target stroke counter is thus at each Tachopuls to one of the current turn ratio increases certain value.
- the value of the target stroke counter becomes supplied to a controller with a value of an actual stroke counter of the drive.
- the drive or servo drive of the traversing device also has the same or identical counter.
- This actual stroke counter counts the number with the same resolution the executed strokes.
- the actual stroke counter and target stroke counter serve as a controller Regular and leading variable. As a manipulated variable of this regulator, the sought middle Laying speed determined, or determined a correction of this speed.
- the drive of the traversing device or the Yarn guide by means of the average laying speed and the stroke length (in one Hub) controlled.
- the yarn guide is accelerated or decelerated, so that the coil is provided with a (step) precision winding.
- the method provides in an advantageous development that the Modulation of the stroke width for the realization of an end bead formation within the Hubes and / or to form a thread reserve, in particular outside the hub, is used, the speed of the thread guide here to zero can be slowed down.
- a thread winding machine for performing the indicated method is characterized by an input of operating data, a coil tachogenerator, a target stroke counter, an actual stroke counter on the drive of the traversing device and a computing and control unit for determining an acceleration value at Compliance with a predetermined turns ratio at a certain predetermined coil speed.
- the invention allows other than the (step) precision winding other Winding types to drive.
- image windings e.g. the middle Laying speed as a function of time continuously (sweep in Wilder Winding) or in function of the coil diameter in discrete jumps (ribbon free) changed. It is also possible to combine the two methods.
- Fig. 10 shows schematically a cross section through a winder 1, in which by means of a traversing device 2, a thread F is constructed into a coil 3.
- the coil 3 builds up on a sleeve 4, which is received by a coil mandrel 14.
- the drive of the spool 3 is either via a drive of the spool 14 (not shown) or by means of a rubbing roller or contact roller 5.
- the friction or contact roller (with driven spool) also has the function, the thread of an iridescent thread guide 7, here Pointer 7 called to take over.
- the pointer 7 is arranged between or in front of a guide bar 6 and the friction roller or taching roller 5. Additions to the description of the pointer are included in our patent application CH 1119/99 of June 16, 1999.
- the coil 3 with the sleeve 4 is shown in working position, with an additional at Beginning of a bobbin assembly in the working position empty sleeve 4.1 at the Reib- or Tachowalze 5 is shown fitting, while with 4.2 empty sleeves in waiting position are shown.
- These two wait positions are the starting positions for one with a dotted line shown rotational movement of a so-called Revolverantriebes, by means of which the empty tubes to the friction roller or the full Spool 3.1 are moved away from the rubbing roller in a removal position.
- the pointer 7 is the formally larger and heavier in weight end mounted on a motor shaft 9 of a motor 8 rotatably, wherein the motor 8 of a Control 12 according to a Hubprogrammes for the construction of a coil is controlled.
- the entry of such a program in the controller is done via an input device 13.
- a movement monitoring device 16th provided, consisting of a fixedly connected to the motor shaft 9 signal generator 10 and one of them separately arranged signal receiver 11, which its received signals from the controller 12 outputs.
- the pointer drive can be used as a Servo drive can be designed, which includes an encoder in operation generates at least one pulse train.
- the encoder can e.g. with two pulse tracks with each track generating 1024 pulses per revolution is formed.
- Fig. 11 shows the winding machine 1 in the direction of view I, wherein the sake of simplicity that Input device 13 and the controller 12 are not shown.
- the pointer 7 should firstly be shown that the pointer 7 not only within the stroke H and can be moved, but that the thread F on the one hand for the bobbin change can be stopped by the pointer 7 in the position C to on the finished Coil to form a so-called Endwulst.
- the pointer 7 for a thread feeder at the beginning of a winding process or when the bobbin change in the position A and B outside the stroke H stopped (or driven at a reduced speed) and on the one hand in the position A, to keep the thread in a position in which this of a Catching knife or sleeve notch of a next sleeve can be caught, on the other hand in the position B where the thread in a reserve winding on the Can make sleeve end. Subsequently, the thread F by the pointer 7 in the Hub H out and backchanged within the hub back and forth.
- the pointer of this variant not only at the ends of Strokes can be delayed or accelerated without external aids, but that the pointer can be brought into positions very quickly, in which this for resting for a moment, then again with definite Speed moved to another functional area or accelerated too become.
- FIG. 12 additionally shows a velocity profile of the pointer 7
- the speed profile shown varies depending on the type of coil construction, why the speed course shown no limitation for the possible Speed course of the pointer 7 represents.
- Fig. 13 shows a variant of the Leitlineales 6, by one hand, the guide bar 6.3 with respect to the guide bar 6 of FIG. 2 and 3 has an elongated guide track 17.1 and on the other hand, the thread F in an extended guide slot 15.1 of the thread guide 7 is guided. It exists quite possible, depending on the coil design and traversing speed curve and arrangement of the friction roller or taching roller 5 relative to the pointer 7 and relative to Guide ruler 6 other Leitlinealformen provide.
- Fig. 14 shows diagrammatically the axis of rotation D of the pointer 7 and the reversal points U1, U2 a certain traversing movement of the thread guide 15 with stroke length B.
- the Longitudinal axis ZL of the pointer 7 has to be pivoted about the axis D by an angle ⁇ be used to generate the traversing movement.
- a variable angle of rotation can be programmed into the controller 12 where the reversals are e.g. defined relative to a reference line R. become.
- the sensor 10 (FIG.
- the evaluation in the controller 12 can be designed in principle such that the motor 8 by the control means of a Comparison with a given reversal point (U1 or U2) reverses its rotation.
- the actual position of the pointer 7 is always via the movement monitoring device 16 known and can by the controller 12 with the predetermined reversal points be compared to allow the reversal each at the desired location.
- the reversal points U1, U2 can (within predetermined limits) via the Input device 13 are changed, as explained in more detail below.
- This is schematically indicated by the dashed lines in Fig. 14. It must be at most the Rotational speed of the arm to be changed, e.g. if the linear velocity the thread guide must remain constant. It can e.g. also a coil build cycle can be entered, whereby the stroke can be changed during the coil construction can.
- the build-up cycle includes e.g. also the definition of an associated one Thread catching position, as already described.
- the input may e.g. based on predetermined winding parameters take place. The operator is, for example, of the controller 12 prompted to enter the required parameters before a winding cycle can be started.
- FIG. 15 shows schematically a part of a coil mandrel 50 with an axis of rotation (Longitudinal axis) DA and a sleeve 51, which by suitable means (not shown) to a predetermined position in the longitudinal direction of the mandrel is held. It is one Coil (not shown) within a predetermined maximum stroke width HB1 on the Build up sleeve. This stroke width is compared to a "reference date" RD defined, which is in the middle of the stroke in this example (although this is not is essential).
- the reference line R of FIG. 14 is preferably changed to coincide with the reference data RD (Fig. 15) of the winder environment coincide - the two But references definitely have a predetermined relationship to each other then, when programming the control of traversing must be taken into account.
- n (DH) V (CH) 2xHB where, V (CH) is the mean speed of the thread guide over a single stroke, and HB is the corresponding stroke width.
- n (SP) V (SP) ⁇ .D (SP) where, V (SP) the peripheral speed of the coil, and D (SP) is the instantaneous coil diameter.
- This function includes the calculation routine explained with reference to FIGS. 10 to 15 and formulas 1 to 5.
- the "products" of this function are the selection of a suitable turn ratio to be able to comply with the bandwidth for the crossing angle ⁇ , and on the other hand the determination of a suitable mean yarn guide speed in order to be able to meet the selected turn ratio.
- This function sets the movement characteristics of the thread guide and the thread within and at the end of the stroke.
- a suitable characteristic can not be based on theoretical considerations, but must be empirical with appropriate methods. It is still possible within the hub to define certain "cornerstones" of a "profile", which will then be based on the empirical Results are to be filled in according to the data for the individual case. Examples of such a procedure within the stroke are described below of Figures 5 to 9 explained. But it is important that the first function criteria are met - they serve as critical parameters for Design of the movement characteristics. This is especially true (but not Exclusively) for maintaining the mean yarn guide speed. It is therefore advantageous, the desired motion characteristic as a (mathematical) Define the function of the mean thread guide speed.
- This function requires the translation of the results of the first and second Functions in control signals representing the corresponding movements of the rotor from Cause the traction drive motor.
- the three functions can be represented schematically according to FIG. 16.
- Box F1 indicates arithmetic routine, which give a Leitsignal, which the required average yarn guide speed corresponds.
- the box F2 indicates Calculation routine, which on the basis of the average yarn guide speed and a predetermined profile, the movement characteristics of the yarn guide (or the Motor rotor).
- Box F3 pointed to the calculation routine that defined the Motion characteristic in suitable control signals for the selected drive motor AM to implement the pointer Z in the optimal way over the set Allow stroke width (or by the corresponding Hubduswinkel) to oscillate.
- a first feedback of this type is in the figure 16 with the sensor S for Position of the pointer Z (or its drive AM), a comparator VG1 and a Setpoint adjuster SW1 indicated for the pointer position, resulting from the comparison derive a system correction.
- a second feedback is with a Comparator VG2 and a Sollstelter SW2 indicated.
- the Correction may be in the form of a correction of the determined mean Yarn guide speed (using VG1) and / or the stroke width setpoints (via VG2). Versions of devices that have such monitoring will be described below with reference to FIGS. 1 to 4, being first given to the aforementioned problems of compliance Reversing points for the thread guide is to enter.
- the thread guide readily at the theoretical reversal point (for example U1 or U2, Fig. 14) first stops and then into the reverse Direction moves.
- the reversal of the yarn guide movement is always with a certain mistakes. It is therefore important to take this fact into account Meaning to keep the coil structure within acceptable limits, such Limits of the user of the machine (depending on the own Quality claims).
- FIG. 1 shows a possibility of calculating the deviations of the end points of a yarn guide during the reversal at a reversal point.
- An encoder 110 a drive not shown here provides pulses to an evaluation, which are evaluated, for example, according to a feedback method.
- the evaluation device 112 supplies a desired reversal point, which is supplied as the actual stroke reversal point I to a memory, preferably a flash memory 113.
- This actual value I is forwarded to a computer 114.
- the computer 114 which is designed as a control computer, both the traversing speeds V CH of the yarn guide and the exact Hubumledgeddling are stored, which is used as the desired value S.
- the difference and a follow-up error of the thread guide and a resulting, mentioned following error of the thread is determined, which is a combined value as a function of the traversing speed V CH in a follow-up table 115 in the computer 114 get saved.
- the thread from the table 115 can be calculated by means of interpolation, so that corresponding control commands, which take into account a new reversal point of the thread guide, are passed to the controls.
- FIG. 2 shows an alternative to FIG. 1 and comprises an encoder 111, which delivers its signal to an evaluation device 112, which supplies the actual hub reversal point therefrom.
- the control computer 114 provides the desired value of the inversion to the flash memory 113.
- the determination of the deviation of the actual value I from the desired value S takes place outside the computer 114, whereby this calculation is sent to the computer 114 and to a Setpoint generator 116 is passed.
- the deviations are stored as a function of the traversing speed V ch .
- the setpoint generator 116 transmits corresponding control commands to a position-speed controller 117 of a drive after receipt of the deviation value.
- the calculations of the target-actual deviations are generally for the left and right side of the traversing, so that also set values for the left and right Coil side in the computer 14 and memory 13 are present at the same time.
- FIG. 3 shows the method of calculating a mean laying speed or average angular speed ⁇ m of a pointer as a thread guide, which is determined for maintaining a specific turn ratio at a specific reel speed.
- customer-specific operating data BD can be entered, for example crossing angle, bandwidth, stroke width etc.
- the configuration data KD which are important for controlling the traversing, are predetermined, preferably fixed, which are used for the calculation of positioning data of the traversing SD.
- a break table BT in which, inter alia, favorable winding conditions are included, provided.
- the break table BT and the configuration data KD together with a currently calculated coil diameter SPD a Winding ratio table WV generated.
- WV Winding ratio table
- the winding ratio table WV Data sets consisting of the coil diameter, the indication of a jump jump and the stroke width or stroke length formed. A lift jump can thus at a predetermined coil diameter can be initiated. The jump itself is through limits the permissible crossing angle changes.
- the control data of the traversing SD are taken into account.
- the frequency of a feeler roller f TW and the frequency of the coil f SP used for this purpose is determined.
- the frequency pulse f SP is passed to a Sollhubckener H SOLL .
- the winding ratio table WV supplies a value for the bobbin diameter to the stroke counter H SOLL .
- the drive of the traversing device in turn has a stroke counter, which holds the actual position of the thread guide. From the comparison of the target position with the actual position of the thread guide is formed in a controller 131 a control and command variable.
- the manipulated variable of this controller 131 is the average laying speed or angular speed ⁇ m .
- a tachogenerator delivers a certain number of pulses f sp per coil revolution. Each pulse of the speedometer can thus be assigned a precisely determinable stroke for a predetermined turn ratio.
- FIG. 4 shows a schematic representation for calculating the acceleration values for a servo drive of a traversing device.
- further operating data BD e.g. are important for Hubatmung, preferably by a user manually preselected.
- the important values for the Hubatmung are among others the Stroke period, stroke distribution and stroke amplitude etc. (see below).
- control data are set, which are used for a calculation of the stroke width HB.
- configuration data KD for the control in particular the pointer length and the profile table PT of a speed profile in a stroke, further control data of the traversing are detected, which are reused for the acceleration values of the drive AS.
- the configuration data KD and the break table BT From these operating data BD, the configuration data KD and the break table BT, the winding ratio table WV is set.
- This winding ratio table WV also includes the course of the stroke length as a function of the coil diameter.
- the Hubperiodenschreiber HP is the current counter H is loaded with values or pulses.
- the coil diameter D (SP) corresponding stroke from the Windungsdorftabelle WV and defined in the operating data BD course of the Hubatmung (in function of the stroke rate) of the current Hubumblen-setpoint HB is now determined.
- the Windungs stapletabelle WV, the profile table PT and the average laying speed or mean angular velocity ⁇ m now the acceleration values AS of the servo drive are determined.
- the counter of the stroke period HP receives data from a stroke counter, which is acted upon by signals or values from the actual stroke counter of the servomotor. From the control data of the traversing, the calculated stroke width and the also calculated average laying speed an acceleration table AS for the servo drive of the traversing device is calculated.
- FIG. 5 shows an example of the parameterization of a stroke breathing.
- the Hubatmung leads to a modulation of the stroke width in the course of the winding cycle.
- FIG. 5 shows the temporal increase and decrease of the nominal stroke with a stroke amplitude A.
- the stroke amplitude A can be selected in ⁇ of the nominal stroke HB.
- the stroke distribution V indicates the ratio of the rise to the fall of the amplitude, for example in% of the period.
- the stroke period P describes the length of the modulation cycle and can be specified in units of traversing strokes. In other alternatives of the modulations, the period P may also refer to the number of double strokes (n DH ) or to the coil diameter or winding time.
- FIG. 6 shows the specification of a velocity profile in a stroke.
- the speed profile is defined with the support points P 0 to P 8 and defines the (relative) speed of the thread guide or the traversing device between the end deflections E 1 and E 2 .
- the end deflections E 1 and E 2 represent a relative stroke width, which is adjusted according to the actual stroke width on a spool.
- the interpolation points P 0 to P 8 are shown as relative speed values with respect to the mean deflection speed. From the given velocity profile, and the actual stroke width calculates a control computer, the acceleration profile for a servo drive, wherein the turns ratio and the coil speed are maintained almost exactly.
- FIG. 9 shows, for example, the diameter-dependent change in the stroke width HB as a function of the coil diameter, which is defined via the support points D 1 and the associated stroke widths HB 1 . Shown are four interpolation points D 0 to D 3 and HB 0 to HB 3 in this example.
- the Hubbreiten was made depending on the number of double strokes n DH or the winding time t can be made.
- the stroke width variation and stroke breathing parameters may be present both in fixed menus and by an operator be specified.
- the provision of winding recipes facilitates the overall Work on winding the thread.
- the arrangement is preferably selected such that the user can adjust the stroke width (HB). specify the coil to be formed (enter into the control). Based on this given stroke width, the controller (preferably a computer) a Target position (RR) for the end point of the reversal of the thread guide on the right Coil edge and a target position (LR) for the end point of the inversion of the Determine the thread guide on the left side of the bobbin and set it for the winding process.
- RR Target position
- LR target position
- These Target positions form both fixed reference points (starting points) for the Packaging structure, as well as the first setpoints (setpoint reversal points) for the Drive control of traversing.
- the end point of the reversal of the thread guide on the left (right) coil edge should therefore with the corresponding target reversal point coincide.
- the latter nominal position can be adjusted even over the winding cycle in Depending on the intended coil structure be variable (Hubatmung, etc.).
- the controller can but the set by itself setpoint reversal point adjust to take into account the effective size of the error. It is but to note that, although the target reversal points are cleared by the controller can be set, the target positions for the endpoints of the reversal only can be changed according to the input data of the winding process.
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Description
Insbesondere beim Steuern der Bildung einer Stufenpräzisionswicklung soll nun die vorgebbare Hubbreite mitberücksichtigt werden.
Zusätzlich zu den erwähnten Aspekten umfasst die Erfindung ein Verfahren zum Betrieb einer einen Faden aufwindenden Maschine, insbesondere Spulmaschine, wobei mittels eines Fadenführers einer Changiereinrichtung der Faden quer zur Fadenabzugsrichtung alternierend zwischen zwei Umkehrpunkten innerhalb eines Changierhubes hin und her geführt wird, um auf einer rotierenden Spule verlegt zu werden. Eine solche Lösung der Aufgabe zielt darauf ab, dass im Verlauf der Spulreise die Umkehrpunkte bzw. Wendepunkte eines Fadenführers bestimmt bzw. exakt eingehalten werden. Erfindungsgemäss sieht das Verfahren zum Betrieb der Faden aufwindenden Maschine, insbesondere Spulmaschine, vor, dass an einem Umkehrpunkt ein Endpunkt der Umkehrung des Fadenführers festgestellt wird und in Abhängigkeit der Lage des Endpunktes der effektive Changierhub (die effektiv festgestellte Hubbreite) bei einem nachfolgenden Hub korrigiert, vorzugsweise verkürzt oder verlängert, wird. Der Soll-Changierhub, der in Abhängigkeit von der vorgegebenen Hubbreite festgelegt wurde, bleibt aber konstant (unverändert).
Gegenüber den bisherigen Steuerungen des Schrittmotors, die sich auf die Abweichungen des Schrittmotors von einem Sollwert und dessen sofortige Nachführung bei festgestellter Abweichung konzentrieren, zielt die vorliegende Erfindung darauf ab, primär die Endpunkte der effektiven Changierhübe wiederholbar an vorgegebenen Stellen vorkommen zu lassen. Dabei kann eine Spulreise im Ganzen betrachtet werden, wobei - als weiterer Unterschied - die Position des Fadenführers bei Ablage eines Fadens auf einer Spule von Bedeutung ist.
- Figur 1
- eine schematische Berechnung von Abweichungen bei der Umkehrung des Fadenführers am Umkehrpunkt;
- Figur 2
- eine Alternative zu Figur 1;
- Figur 3
- eine schematische Darstellung zur Berechnung einer mittleren Verlegegeschwindigkeit;
- Figur 4
- eine schematische Darstellung zur Berechnung der Beschleunigung eines Servoantriebs;
- Figur 5
- ein Beispiel für die Parametrisierung einer Hubatmung;
- Figur 6
- eine Darstellung für ein Geschwindigkeitsprofil;
- Figur 7
- ein Beispiel einer kombinierten Parametrisierung der Hubatmung;
- Figur 8
- ein weiteres Beispiel einer kombinierten Parametrisierung der Hubatmung;
- Figur 9
- ein Beispiel einer Parametrisierung der kontinuierlichen Hubveränderung;
- Figur 10
- eine Kopie der Figur 1 aus WO 99/65810;
- Figur 11
- eine Kopie der Figur 2 aus WO 99/65810;
- Figur 12
- eine Kopie der Figur 3 aus WO 99/65810;
- Figur 13
- eine Kopie der Figur 4 aus WO 99/65810;
- Figur 14
- eine Kopie der Figur 5 aus WO 99/65810;
- Figur 15
- eine schematische Darstellung der "Spulerumgebung" für die Changierung, und
- Figur 16
- eine schematische Darstellung eines Steuerungssystems nach der Erfindung.
Der Antrieb der Spule 3 erfolgt entweder über einen Antrieb des Spulendornes 14 (nicht gezeigt) oder mittels einer Reibwalze oder Kontaktwalze 5. Die Reib- oder Kontaktwalze (bei angetriebenem Spulendorn) hat ausserdem noch die Funktion, den Faden von einem changierenden Fadenführer 7, hier Zeiger 7 genannt, zu übernehmen. Der Zeiger 7 ist zwischen oder vor einem Leitlineal 6 und der Reibwalze bzw. Tachowalze 5, angeordnet. Ergänzungen der Beschreibung des Zeigers sind in unserer Patentanmeldung CH 1119/99 vom 16. Juni 1999 enthalten.
- Erstens, müssen sie einer vorgegebenen Hubbreite (axialen Länge) der Spule entsprechen, und
- Zweitens, müssen die einmal festgelegten Positionen eingehalten werden oder einen vorgegeben Änderungsmuster folgen (d.h. sie dürfen nicht unkontrolliert "wandern").
Die Anzahl Doppelhübe n(DH) kann aber durch die folgende Formel dargestellt werden:
HB die entsprechende Hubbreite ist.
Weiter
D(SP) der momentane Spulendurchmesser ist.
Der Zähler der Hubperiode HP erhält Daten von einem Hubzähler, der mit Signalen oder Werten vom Ist-Hubzähler des Servomotors beaufschlagt wird. Aus den Stelldaten der Changierung, der berechneten Hubbreite und der ebenfalls berechneten mittleren Verlegegeschwindigkeit wird eine Beschleunigungstabelle AS für den Servoantrieb der Changiereinrichtung berechnet.
Claims (32)
- Verfahren zum Betrieb einer Faden aufwindenden Maschine, insbesondere Spulmaschine, wobei mittels eines Fadenführers (15) einer Changiereinrichtung ein Faden (F) quer zur Fadenabzugsrichtung alternierend zwischen zwei Umkehrpunkten (U1,U2) innerhalb eines Changierhubes (H) hin und hergeführt wird, um auf einer rotierenden Spule verlegt zu werden, wobei an einem Umkehrpunkt (U1,U2) ein Istwert (I) für einen Endpunkt der Umkehrung des Fadenführers (15) festgestellt wird und in Abhängigkeit des Istwertes (I) des Endpunktes der Changierhub (H) bei einem nachfolgenden Hub (H) korrigiert, vorzugsweise verkürzt oder verlängert, wird, dadurch gekennzeichnet, dasseine von der Changierung einzuhaltende Hubbreite (HB) vorgegeben wird, wobei die vorzugebende Hubbreite (HB) über den Verlauf einer Spulreise gegenüber einem Referenzdatum, vorzugsweise gegenüber der Hubmitte, definiert wird,aus der Hubbreite (HB) mindestens ein erster Sollwert (S) für den Endpunkt der Umkehrung des Fadenführers (15) abgeleitet wird; undin Abhängigkeit von einer ermittelten Differenz zwischen dem Istwert (I) für den Endpunkt der Umkehrung des Fadenführers (15) und dem Sollwert (S) für den Endpunkt der Umkehrung des Fadenführers (15) ein geänderter Sollwert (S) für den Endpunkt der Umkehrung des Fadenführers (15) eines nachfolgenden Hubs (H) derart abgeleitet wird, dass die Differenz zwischen dem Istwert (I) und dem ersten Sollwert (S) reduziert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Changierhub (H) in Abhängigkeit der Differenz des Endpunkts vom Umkehrpunkt (U1,U2) korrigiert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Differenz des Endpunktes vom Umkehrpunkt (U1,U2) über mehrere Hübe (H) gemittelt wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Changierhub (H) in einem beliebigen Hub (H) korrigiert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Changierhub (H) in dem unmittelbar danach folgenden Hub (H) korrigiert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein Fehler aus der Differenz des Endpunktes vom Umkehrpunkt (U1,U2) berechnet wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Fehler, vorzugsweise in einer Tabelle in Abhängigkeit der Changiergeschwindigkeit, gespeichert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass bei einem Doppelhubzahlsprung ein zu erwartender Fehler aus der Tabelle interpoliert wird und von der Hubbreite (HB) subtrahiert oder addiert wird, so dass die durch den Doppelhubzahlsprung verursachte Hubverkürzung oder Hubverlängerung kompensiert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Hubbreite (HB) im Verlauf einer Spulreise variiert wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass in Abhängigkeit eines vorbestimmten Windungsverhältnisses und einer Spulendrehzahl der Antrieb des Fadenführers (15) bzw. der Changiereinrichtung derart gesteuert wird, dass bei der Spulendrehzahl oder einer Änderung der Spulendrehzahl das Windungsverhältnis eingehalten wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass die Hubbreite (HB) und/oder das Windungsverhältnis variiert werden.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Verlegung des Fadens (F) mittels einer Hubatmung und/oder einer, vorzugsweise kontinuierlichen, Hubvariation während einer Spulreise moduliert oder korrigiert wird, vorzugsweise in Abhängigkeit des Spulendurchmessers und/oder der Hubzahl und/oder der Zeit und/oder der Hubbreite (HB).
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein Geschwindigkeitsprofil des Fadenführers (15) zwischen den Umkehrpunkten (U1,U2) des Hubes (H) vorgegeben wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Geschwindigkeitsprofil unabhängig von den Hubbreiten (HB) während einer Spulreise ausgebildet wird und/oder auf eine mittlere Verlegegeschwindigkeit bezogen wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die mittlere Verlegegeschwindigkeit ermittelt wird durch die Hubbreite (HB), das Windungsverhältnis und die Spulendrehzahl.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass für ein vorbestimmtes Windungsverhältnis und eine vorbestimmte Spulendrehzahl einem Puls eines Soll-Hubzählers ein bestimmter Hubweg zugeordnet wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Soll-Hubzähler bei einem Puls um einen bestimmten Werterhöht wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Wert des Soll-Hubzählers mit dem Wert eines Ist-Hubzählers des Antriebs einem Reglerzugeführt werden.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Regler aus dem Wert des Soll- und Ist-Hubzählers die mittlere Korrektur der Verlegegeschwindigkeit ermittelt.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Modulation der Hubbreite (HB) zur Realisierung einer Endwulstausbildung innerhalb des Hubes (H) und/oder zur Bildung einer Fadenreserve, insbesondere außerhalb des Hubes (H), verwendet wird, wobei die Geschwindigkeit des Fadenführers (15) hierbei bis auf Null abgebremst werden kann.
- Faden aufwindende Maschine, insbesondere Spulmaschine, mit einer Changiereinrichtung, wobei mittels eines Fadenführers (15) einer Changiereinrichtung der Faden (F) quer zur Fadenabzugsrichtung alternierend zwischen zwei Umkehrpunkten (U1,U2) innerhalb eines Changierhubes (H) hin und hergeführt wird, um auf einer rotierenden Spule verlegt zu werden, und die Changiereinrichtung über einen oszillierenden Antrieb verfügt, sowie mit einer Erfassungseinrichtung zum Erfassen eines Istwertes (I) für einen Endpunkt bei der Umkehrung des Fadenführers (15), zur Durchführung des Verfahrens nach einem der vorherigen Ansprüche, gekennzeichnet durcheine Steuereinrichtung (12) zur Korrektur, vorzugsweise Verkürzung oder Verlängerung, des Changierhubes (H) in Abhängigkeit der Lage des Endpunkts, unddie Steuereinrichtung (12) in Abhängigkeit von einer ermittelten Differenz zwischen dem Istwert (I) für den Endpunkt der Umkehrung des Fadenführers (15) und einem ersten Sollwert (S) für den Endpunkt der Umkehrung des Fadenführers (15) einen geänderten Sollwert (S) für den Endpunkt der Umkehrung des Fadenführers (15) derart ableitet, dass die Differenz zwischen dem Istwert (I) des Endpunktes bei einem nachfolgenden Hub (H) und dem Sollwert (S) reduziert ist.
- Maschine nach Anspruch 21, gekennzeichnet durch eine Eingabe von Betriebsdaten, einen Spulen-Tachogeber, einen Soll-Hubzähler, einen Ist-Hubzähler am Antrieb der Changiereinrichtung und einer Rechen- und Steuereinheit zur Ermittlung eines Beschteunigungswertes bei Einhaltung eines vorbestimmten Windungsverhältnisses bei einer bestimmten vorgegebenen Hubbreite (HB) und der gegebenen Spulendrehzahl.
- Maschine nach Anspruch 21 oder 22, mit mindestens einem Spulendorn, wobei die Changiereinrichtung mit einem derart steuerbaren Antrieb versehen ist, dass die Hubbreite (HB) über die Spulreise variabel ist, insbesondere mit einem Schwenkantrieb, dadurch gekennzeichnet, dass der Changierantrieb in Abhängigkeit von der Spulendrehzahl und einem vorgebbaren Windungsverhältnis gesteuert ist, wobei das effektive Windungsverhältnis von der Steuerung aus einer Vielzahl von möglichen Windungsverhältnissen gewählt ist und zwar sowohl in Abhängigkeit von Parameter, welche den Kreuzungswinkel beeinflussen als auch in Abhängigkeit von der effektiven Hubbreite (HB).
- Maschine nach Anspruch 21 oder 22 mit mindestens einem Spulendorn und einer Changierung, wobei die Changierung mit einem derart steuerbaren Antrieb versehen ist, dass die Hubbreite (HB) über die Spulreise variabel ist, insbesondere mit einem Schwenkantrieb, dadurch gekennzeichnet, dass die von der Changierung einzuhaltende Hubbreite (HB) vorgegeben ist, wobei die vorzugebende Hubbreite (HB) gegenüber einem Referenzdatum, vorzugsweise gegenüber der Hubmitte, definiert ist, welches in der durch das Spulaggregat definierten Umgebung, insbesondere gegenüber dem Spulendorn, eine vorbestimmte, vorzugsweise feste, Ausrichtung aufweist.
- Maschine nach Anspruch 24, dadurch gekennzeichnet, dass Sollumkehrpunkte in Abhängigkeit von der vorgegebenen Hubbreite (HB) definiert sind, wobei die Sollumkehrpunkte vorzugsweise veränderbar sind, um die Einhaltung der vorgegebenen Hubbreite (HB) zu begünstigen.
- Maschine nach Anspruch 21 oder 22 mit mindestens einem Spulendorn und einer Changierung, wobei die Changierung mit einem derart steuerbaren Antrieb versehen ist, dass die Hubbreite (HB) über die Spulreise variabel ist, insbesondere mit einem Schwenkantrieb, dadurch gekennzeichnet, dass die mittlere Geschwindigkeit des Fadenführers (15) über einem Hub (H) aus der Spulendrehzahl anhand vom effektiven Windungsverhältnis und von der effektiven Hubbreite (HB) abgeleitet ist.
- Maschine nach Anspruch 21 oder 22 mit mindestens einem Spulendorn und einer Changierung, wobei die Changierung mit einem derart steuerbaren Antrieb versehen ist, dass die Hubbreite (HB) über die Spulreise variabel ist, insbesondere mit einem Schwenkantrieb, dadurch gekennzeichnet, dass die Bewegung des Fadenführers (15) über einem Hub (H) gemäss einer vorgegebenen Bewegungscharakteristik gesteuert ist, wobei eine von der Steuerung vorgegebene mittlere Geschwindigkeit des Fadenführers (15) eingehalten wird.
- Maschine nach Anspruch 27, dadurch gekennzeichnet, dass die Bewegungscharakteristik Beschleunigungswerte und/oder Geschwindigkeitswerte definiert, die an vorbestimmten Stellen über den Hub (H) einzuhalten sind.
- Maschine nach Anspruch 28, dadurch gekennzeichnet, dass die optimale Bewegungscharakteristik empirisch ermittelt ist und sich vorzugsweise über die Spulreise, d. h. zwischen dem Anfang und dem Ende der Bildung einer bestimmten Spule, verändert.
- Maschine nach einem der Ansprüche 21 bis 29, dadurch gekennzeichnet, dass die Bewegungen eines hin- und hergehenden Fadenführers (15) durch die Bewegungen eines Motorenrotors bestimmt sind und der Motor (8) mit einer Steuerung versehen ist, welche der Rotor zwischen Umkehrpunkten (U1,U2) drehen lässt, die einen Drehwinkelabstand von weniger als 360°, vorzugsweise weniger als 180° einschließen.
- Maschine nach Anspruch 21, dadurch gekennzeichnet, dass der genannte erste Sollwert (S) der erste Wert einer Sollwertreihe ist, welche einem Verlauf der Hubbreite (HB) über die Spulreise entspricht.
- Maschine nach Anspruch 30, dadurch gekennzeichnet, dass der Istwert (I) für den Endpunkt der Umkehrung des Fadenführers (15) durch eine an einer Motorwelle angebrachte Erfassungseinrichtung festgestellt wird.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19950285 | 1999-10-19 | ||
DE1999150285 DE19950285A1 (de) | 1999-10-19 | 1999-10-19 | Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule |
CH237699 | 1999-12-24 | ||
CH237699 | 1999-12-24 | ||
PCT/CH2000/000552 WO2001028907A2 (de) | 1999-10-19 | 2000-10-13 | Verfahren und vorrichtung zum aufwickeln eines fadens auf eine spule |
Publications (2)
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EP1222133A2 EP1222133A2 (de) | 2002-07-17 |
EP1222133B1 true EP1222133B1 (de) | 2005-12-28 |
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EP00965706A Expired - Lifetime EP1222133B1 (de) | 1999-10-19 | 2000-10-13 | Verfahren und vorrichtung zum aufwickeln eines fadens auf eine spule |
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Country | Link |
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EP (1) | EP1222133B1 (de) |
JP (1) | JP2004500295A (de) |
AT (1) | ATE314301T1 (de) |
AU (1) | AU7637600A (de) |
DE (1) | DE50011986D1 (de) |
WO (1) | WO2001028907A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004521048A (ja) * | 2001-04-18 | 2004-07-15 | マシーネンファブリク リーター アクチェンゲゼルシャフト | 糸を巻き上げる機械を運転する方法及び巻取り装置 |
FR2944271B1 (fr) * | 2009-04-09 | 2011-06-10 | Ritm | Dispositif de bobinage d'un fil sur une bobine a rapport de bobinage constant |
JP5505621B2 (ja) * | 2010-01-12 | 2014-05-28 | 村田機械株式会社 | 糸巻取機及び糸巻取方法 |
DE102013016644A1 (de) * | 2013-10-05 | 2015-04-09 | Saurer Germany Gmbh & Co. Kg | Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine |
DE102014008574A1 (de) * | 2014-06-11 | 2015-12-17 | Saurer Germany Gmbh & Co. Kg | Textilmaschine mit Spulvorrichtungen |
DE102017116548A1 (de) * | 2017-07-21 | 2019-01-24 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und Vorrichtung zum Aufwickeln eines Spinnfadens, insbesondere eines Glasfadens zu einer Spule |
CN114519780B (zh) * | 2022-04-21 | 2022-07-19 | 山东捷瑞数字科技股份有限公司 | 一种基于三维引擎实现模拟筒纱卷绕的运动仿真方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394986A (en) * | 1981-05-13 | 1983-07-26 | Toray Industries, Inc. | Yarn winding apparatus |
DE3401530A1 (de) * | 1984-01-18 | 1985-07-25 | Fritjof Dipl.-Ing. Dr.-Ing. 6233 Kelkheim Maag | Praezisionsspule, sowie verfahren und vorrichtung zu deren herstellung |
DE3918846A1 (de) * | 1989-06-09 | 1990-12-13 | Maag Fritjof | Praezisionskreuzspule, verfahren zu deren herstellung und spuleinrichtung dafuer |
EP0453622B1 (de) * | 1990-04-23 | 1995-02-15 | Ssm Schärer Schweiter Mettler Ag | Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule |
GB9024396D0 (en) * | 1990-11-09 | 1991-01-02 | Jeftex Limited | Thread package building |
DE4208395A1 (de) * | 1992-03-16 | 1993-09-23 | Sahm Georg Fa | Verfahren zum aufspulen von einer spuleinrichtung zugefuehrtem, band- oder fadenfoermigem spulgut in kreuzspulung mit praezisionswicklung |
DE59609889D1 (de) * | 1996-10-28 | 2003-01-02 | Ssm Ag | Vorrichtung zum Aufwickeln eines Fadens auf eine Spule |
TW368490B (en) * | 1997-02-27 | 1999-09-01 | Barmag Barmer Maschf | Method of and apparatus for winding a continuously advancing textile yarn into a core supported package by controlling the acceleration and/or deceleration of the yarn guide to modify the yarn deposit in the package edges |
EP0999992B1 (de) * | 1997-07-26 | 2004-01-28 | Barmag Ag | Verfahren und changiereinrichtung zum verlegen eines fadens |
AU4028699A (en) * | 1998-06-12 | 2000-01-05 | Maschinenfabrik Rieter A.G. | Yarn changing method |
-
2000
- 2000-10-13 WO PCT/CH2000/000552 patent/WO2001028907A2/de active IP Right Grant
- 2000-10-13 AU AU76376/00A patent/AU7637600A/en not_active Abandoned
- 2000-10-13 AT AT00965706T patent/ATE314301T1/de not_active IP Right Cessation
- 2000-10-13 JP JP2001531706A patent/JP2004500295A/ja active Pending
- 2000-10-13 DE DE50011986T patent/DE50011986D1/de not_active Expired - Fee Related
- 2000-10-13 EP EP00965706A patent/EP1222133B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2001028907A3 (de) | 2001-11-22 |
AU7637600A (en) | 2001-04-30 |
EP1222133A2 (de) | 2002-07-17 |
DE50011986D1 (de) | 2006-02-02 |
JP2004500295A (ja) | 2004-01-08 |
WO2001028907A2 (de) | 2001-04-26 |
ATE314301T1 (de) | 2006-01-15 |
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