EP1338544A2 - Spulmaschine und Verfahren zum aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule - Google Patents
Spulmaschine und Verfahren zum aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule Download PDFInfo
- Publication number
- EP1338544A2 EP1338544A2 EP03003311A EP03003311A EP1338544A2 EP 1338544 A2 EP1338544 A2 EP 1338544A2 EP 03003311 A EP03003311 A EP 03003311A EP 03003311 A EP03003311 A EP 03003311A EP 1338544 A2 EP1338544 A2 EP 1338544A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- turntable
- winding
- current
- angle
- motor
- 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.)
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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
- B65H54/40—Arrangements for rotating packages
- B65H54/52—Drive contact pressure control, e.g. pressing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
- B65H2511/212—Rotary position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/10—Speed
- B65H2513/11—Speed angular
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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
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/20—Calculating means; Controlling methods
- B65H2557/24—Calculating methods; Mathematic models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/20—Calculating means; Controlling methods
- B65H2557/24—Calculating methods; Mathematic models
- B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve
-
- 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 winding machine and a method for Winding a continuously running thread on a Coil with the specified in the preambles of claims 1 and 7 Features.
- a winding machine of this type (DE 195 38 480 C2) is used to wind a thread running continuously at a constant feed speed of the winding machine onto a bobbin.
- the winding machine has a turntable driven by a motor, which is sometimes also referred to as a drum, without interruption, that is to say without repeatedly stopping and restarting the motor.
- At least one, but usually at least two drivable spindles are rotatably mounted on the turntable, which are equipped with their own rotary drive.
- a spool is wound from the supplied thread on a spool on the winding spindle in operation.
- the bobbin winder has a laying device with which the thread is distributed over the length of the bobbin.
- a contact roller is provided which bears against the circumference of the bobbin forming the bobbin in operation and via which the thread is fed to the bobbin circumference.
- a device for determining the speed of the thread or a sensor for determining the speed n K of the contact roller ultimately serve to calculate the current diameter D S of the bobbin via the bobbin travel.
- a device for determining the current speed n S of the winding spindle in operation is provided.
- To a computing unit used to determine the current target rotational angle ⁇ of the motor of the turntable by using a formula relating to the forming the geometrical relationships of the winding machine or by comparison with a stored table of values and to calculate the respective current diameter D S on the in-service bobbin spindle Kitchen sink.
- a control device is provided for the continuous rotation of the turntable during the winding cycle.
- the rotation of the turntable is controlled in a quasi-constant sequence of movements, ie the motor which drives the turntable of the turntable is never stopped during the winding cycle. Rather, the turntable is driven continuously, that is to say without interruption, a sequence of angular velocities being used in immediate succession.
- one angular velocity replaces the other angular velocity.
- the turntable is thus rotated continuously with angular speeds changing from computing cycle to computing cycle independently of a stroke movement of the contact roller, the current angular velocity being calculated from the current spool diameter and the actual value of an angle detection unit of the turntable.
- the course of the changing angular velocities has an overall hyperbolic character. So that the control device is no longer dependent on a movement of the contact roller, ie the contact roller can be designed and arranged completely freely.
- the contact roller Exert contact pressure on the circumference of the forming coil which is designed according to criteria independent of the regulation, and for example has a continuous course.
- a steady decrease in the contact pressure without Variations possible which is beneficial to the coil structure effect.
- EP 0 770 030 B1 discloses a winding machine for winding a continuously running thread onto a bobbin. However, it is a discontinuous process in which the motor that drives the turntable with the two winding spindles is alternately started and stopped again.
- the winding machine has a laying device and also a contact roller connected upstream of the winding spindles in operation, which is kept in constant contact with the coil. A sensor for measuring the speed of rotation of the coil is provided.
- a calculator is for calculating the instantaneous diameter D S of the coil from the transmitted signal from the sensor and to ⁇ for determining the belonging to the diameter D S angular position of the turntable according to a stored table or by applying a corresponding calculation formula.
- a signal generated by the computer and corresponding to the desired angular position ⁇ should be transmitted to the control unit for the rotary drive of the motor of the turntable and used.
- the setpoint rotation angle ⁇ setpoint which belongs to the current coil diameter D S , is used as the manipulated variable.
- the control unit instructs the motor for the rotary drive of the turntable to rotate until the setpoint rotation angle ⁇ setpoint is reached.
- Fig. 12 shows that the course of the actual angle of rotation is step-shaped.
- the contact pressure curve of the contact roller on the forming coil also has a step-like, discontinuous course.
- the slope of the straight line represents the angular velocity omega of the turntable. There is only one angular velocity of the turntable. The motor can either be switched off or rotate at an intended angular speed. The slope is therefore constant.
- the discontinuous mode of operation Due to the discontinuous mode of operation, it must be selected so that switching operations are always possible, i.e. the motor of the rotary drive can be switched on and off alternately. Continuous rotation of the motor and thus the turntable is neither possible nor sensible there. If you left the discontinuous further rotation of the turntable and let the turntable rotate continuously, as the generic winder according to DE 195 38 480 C2 shows, the straight line would run from the first switch-on point of the motor to infinity. At the latest from the point of intersection between the straight line of the real angular position and the ideal curve of an ideal course of the rotation angle, for example over the time according to FIG. 11, the turntable would rotate faster than the coil increase. An increasing air gap would then form between the coil and the contact roller.
- the slope of the straight line could be chosen to be flatter, that is to say the speed at which the turntable is rotated in sections could be reduced.
- the motor no longer reaches the target rotation angle. In its discontinuous drive phases, the turntable would always turn more slowly than the spool increase. The consequence of this would be that the contact roller would push itself more and more into the coil. If this error has occurred, i.e. if the motor's rotational speed is too low for the rotary drive, this error can no longer be corrected within the winding cycle. Basically, one would have to choose a speed that is too high for the rotating phases of the turntable, but in turn this leads to the conclusion that the motor must always be able to be switched on and off.
- the curve D S f (t, v, titer) shifts up or down.
- the known winding machine is dependent on such changes in its control behavior for the angle of rotation of the turntable, since the selected manipulated variable of the setpoint angle position ⁇ soll is directly dependent on the real course over time of the diameter increase of the coil.
- the one used The contact roller can be swiveled on a swing arm or in one Straight guidance can be moved in a straight line. It is a sensor provided the movement of the contact roller relative to the Surface of the winding spindle in operation forming coil detected.
- the sensor belongs to a control device and works as a two-point control element.
- the contact pressure of the contact roller on the coil is controlled depending on the current coil diameter.
- the invention has for its object to provide a winding machine of the type described above, in which the course of the actual angle of rotation ⁇ ist of the turntable is as close as possible to the ideal curve of the angle of rotation and thus a constant and / or controllable contact pressure curve of the contact roller on the coil being formed allows.
- this is achieved in a winding machine of the type described at the outset in that the computing unit is designed to calculate a respective current angle difference ⁇ between the current target rotation angle ⁇ soll and the current actual rotation angle ⁇ ist of the motor of the turntable at fixed points via the winding travel, and that the control device for controlling the motor of the turntable is designed as manipulated variables at the defined support points with the signals corresponding to the respective current angle differences ⁇ .
- the invention is based on the idea to corresponding signal instead of using ⁇ of the target rotational angle as the manipulated variable an angle difference ⁇ is to ⁇ between the current target rotational angle and the current Istcardwinkel ⁇ is to use.
- These different current angle differences are determined at fixed points via the winding travel and used for the continuous control of the motor of the turntable via the control device.
- the motor of the turntable exerts a drive on the turntable without interruption and, due to the use of the current angle difference, rotates the turntable alternately faster or slower than it corresponds to the ideal curve of the rotation angle ⁇ should .
- the motor for the turntable is switched off once, the circumference of the sleeve resting on the winding spindle against the circumference of the contact roller.
- the thread is wound up on the tube until the bobbin diameter has increased by such an amount that a target rotation angle can be determined at all.
- a setpoint angle difference is then formed with this target rotation angle and converted into a transferable signal, which is communicated to the control unit.
- the motor is then switched on and instructed to travel through this actuating angle difference before the next control cycle takes place.
- the current coil diameter D S is calculated in the computing unit. Whenever the diameter of the coil by a predetermined amount, e.g. B.
- the new winding machine produces in regular succession Intervals, e.g. B. every 10 msec, as a manipulated variable Angular difference that does not correspond to the target rotation angle and therefore from the time course of a predetermined coil diameter increase, how he z. B. from a fixed table of values results in being detached.
- Intervals e.g. B. every 10 msec
- a control device is in the control of the winding machine integrated, which forms the manipulated variable as follows performs:
- the control device is input constant gain factors, which correspond to the controlled system of the winding machine.
- the drive of the turntable is switched off until the diameter of the coil for the first time by z. B. has grown 0.1 mm.
- the target rotation angle ⁇ set is determined for this current diameter of the coil.
- the angle difference ⁇ is calculated from this target rotation angle and the continuously returned actual rotation angle.
- This manipulated variable is equivalent to an angle difference, which, however, should not ⁇ to the target rotational angle and is therefore referred to alternate for better differentiation as an adjusting angle difference ⁇ .
- the control or regulating device is transmitted to these pitch angle difference ⁇ alternate and then to the motor, the instruction issued to drive through this adjustment angle difference.
- manipulated variable (New) manipulated variable (old) + ( ⁇ , gains , .DELTA.T)
- This new manipulated variable in turn becomes the control or regulating device transmits and thus triggers the manipulated variable from the previous control cycle without the motor for the rotary drive is switched off or even stopped.
- This process is carried out at constant time intervals, e.g. B. every 10 msec, repeated whenever the diameter of the coil z. B. has grown by a further 0.1 mm, the set angle of rotation ⁇ set (old) is replaced by a new set point of rotation ⁇ set (new) and the time difference ⁇ T (old) is replaced by a newly measured time difference ⁇ T (new) .
- the computing unit to generate the sequence of manipulated variables as signals that the each correspond to current angle differences ⁇ , multiplied with gain factors.
- the computing unit is also used to determine current time differences ⁇ T between the specified support points in time parallel to the formation of the current angle differences ⁇ corresponding signals formed.
- the computing unit can be used to generate a sequence of manipulated variables corresponding to the reference points with a repeat cycle of be formed about 10 msec. Such time intervals are without further controllable, so that a fairly good course of the Actual rotation angle corresponding to the ideal rotation angle.
- the method for winding a continuously supplied thread on a bobbin of a winding machine is characterized according to the invention in that ⁇ at fixed support points during the winding cycle of each current Istfeldwinkel of the motor of the turntable is determined and using a formula relating to the geometrical relations of the winding machine or by comparison to ⁇ with a stored table of values of the respective current target rotational angle of the motor of the turntable, which is added to the current diameter D S of the coil part, determined to ⁇ on the fixed support points a respective current angular difference ⁇ between the current target rotational angle and the current Actual rotation angle ⁇ ist of the motor of the turntable is formed, and the motor of the turntable is actuated at the defined support points with the signals corresponding to the respectively current angle differences ⁇ as manipulated variables.
- the invention is based on the idea of avoiding the rotating turn and stopping of the turntable, as is also known in the prior art, and of working with an uninterrupted, continuous turning operation of the turntable.
- changing current angle differences ⁇ come between the current target rotational angle ⁇ should and the motor of the turntable is ⁇ the current Istcardwinkel successively applied, that is, from an angle difference out of the rotary drive of the turntable is turned to a second different angle difference or reversed, so that in any case the turntable performs an uninterrupted movement.
- the current angle differences used decrease rapidly in the course of a winding trip.
- the current angle differences should be used as manipulated variables Signals corresponding to ⁇ , multiplied by Gain factors are used. So there is a Adaptation to the geometric conditions of the winding machine.
- Computation cycles which are in use can advantageously be used over the winding travel constant time intervals, for example especially in 10 msec.
- the repetition of the Computation cycles in such short time intervals is quite possible. But it is not harmful if the number of Calculation cycles reduced and the time intervals increased be because the drive of the turntable a lot anyway contains mechanical elements that prove to be comparative prove sluggish. It is also possible to have different numbers of computing cycles on the one hand and control cycles on the other, To form averages or the like. In general however, this is not necessary.
- Fig. 1 the course of the diameter of the coil is shown.
- the continuously supplied thread is on a Coiled sleeve that has a corresponding outer diameter has on which the bobbin formation of the thread by winding he follows.
- the speed v and the thread thickness (titer) will correspond to the diameter enlarge the curve shown in solid lines.
- This dashed Curve represents the ideal line, i.e. the ideal target Course of the change in the angle of rotation of the turntable over the Time, speed and thread size.
- Fig. 2 are the essential elements of a winding machine indicated and their geometric sizes clarified.
- the Winding machine has a turntable 1, on its effective Diameter EDD two winding spindles 2, 3 are rotatably mounted.
- the turntable 1 is assigned a motor, not shown, by means of which the turntable 1 is set in rotary motion.
- Each winding spindle 2, 3 has a further drive or can be coupled to such a drive via which the respective winding spindle 2 or 3 is driven via the winding travel.
- the winding machine has a contact roller 4, which has a constant contact roller diameter D K.
- D K constant contact roller diameter
- the thread not shown, is wound on an empty tube of the winding spindle 2 in progress.
- a coil 5 is formed on the empty tube of the winding spindle 2, the diameter of which continuously increases over the winding cycle.
- a current coil diameter D S is indicated in dashed lines.
- the current coil diameter D S of the coil 5 forming on the winding spindle 2 can be derived as follows:
- Both the contact roller and the coil are cylindrical bodies which are subject to a uniform circular movement.
- V Faden is known and ⁇ is also a known constant. You only have to determine the speed n S using a suitable sensor and enter V thread into the control system in order to then calculate D S according to equation 6.
- D S D K , (n K / n S )
- the diameter of the contact roller D K is a constant variable known from the machine geometry.
- the turntable carries two winding spindles, each on the alternately coils are wound. These spindles have one constant distance from center to center, which at the Machine design was determined as a geometric size and is therefore known. If you connect the centers of the Spindles with a straight line passing through the center of the turntable the distance can also be considered effective Designate the diameter of the turntable.
- the diameter of the contact roller is also constant geometric size that is fixed in the machine design became known and thus.
- the diameter of the coil is a variable size, which, starting from the outer diameter of the empty tube, continuously grows, the outer diameter of the empty sleeve is known.
- the current coil diameter was determined already explained. So you can go for further considerations also assume that this size is known.
- the angle you are looking for is spanned between two legs, from the center of the turntable to the center of the contact roller or from the center of the turntable to the center of the Coil run. If you connect the respective end points of these Legs together, so you get to an oblique angle Triangle with the side lengths a, b and c.
- the answer to the above Question can be found in every math book in the chapters on the geometry of flat surfaces.
- the one to be read there The cosine rate applies to every oblique triangle and describes that with three known side lengths or two known side lengths and the included angle each remaining unknown triangle size, i.e. each missing page or any missing angle that can be calculated.
- FIGS. 3 and 4. 3 shows, like FIG. 4, in dashed lines the ideal course of the angle of rotation ⁇ over time t, the speed v and the thread thickness (titer).
- Fig. 3 illustrates in solid lines the discontinuous mode of operation, according to EP 0770030 B1 is to ⁇ using a target rotational angle as the manipulated variable for the drive of the turntable.
- Fig. 4 illustrates the continuous mode of operation, that is, the uninterrupted rotation of the turntable over the winding cycle using the angle difference ⁇ as a manipulated variable.
- 3 and 4 are each shown in 100 times magnification and thus show the particularly interesting course at the very beginning of a winding trip.
- Fig. 4 illustrates the method according to the invention and the operation of the new winding machine.
- the motor for the rotary drive of the turntable is also switched off there, as is the case with every winding machine at the start of a winding cycle.
- the bobbin diameter increases by such an amount that a target rotation angle can be determined at all.
- ⁇ is the respective current actual operating angle Istfoxwinkel a difference is formed and is converted into a transmittable signal, which is communicated as a manipulated variable to the control device of the motor for the rotary drive of the turntable.
- this actuation angle difference also has the advantage that the sign of this actuation angle difference ⁇ changes from + to - and vice versa, which is figuratively expressed in FIG. 4 that the actual curve of the rotation angle ⁇ is temporarily above and sometimes below the dashed ideal line lies.
- the motor for the turntable is switched on and instructed to run through this first setting angle difference before the next control cycle takes place. Since the coil has already continued to grow in the meantime, a new positioning angle difference is calculated in advance, while the motor is still driving through the last positioning angle difference, communicated to the control unit, etc. This results in the advantageous consequences which have already been described above.
- FIG. 5 and 6 again illustrate the state in comparison the technology according to EP 0 770 030 B1 (Fig. 5) with the new Procedure (Fig. 6). While in the prior art the angular velocity of the turntable depending on the switch on and Switching off the motor between a constant value and the 6 is changed, Fig. 6 shows that the turntable with an angular velocity omega over time or the forming diameter of the coil is continuously rotated, the angular velocity omega indeed according to the Requirement changed, but never during the winding trip Value 0 reached.
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Abstract
Description
- Fig. 1
- ein Diagramm des Durchmesserzuwachses der Spule in Abhängigkeit der Zeit, Geschwindigkeit und Fadenstärke sowie den Verlauf des Drehwinkels α im idealen Fall,
- Fig. 2
- die schematische Verdeutlichung der wesentlichen Elemente der Spulmaschine mit ihren geometrischen Kenndaten,
- Fig. 3
- ein Diagramm des Verlaufs des Drehwinkels α in Abhängigkeit der Zeit, Geschwindigkeit und Fadenstärke nach dem Stand der Technik und relativ zur Ideallinie, in 100-facher Vergrößerung,
- Fig. 4
- ein Diagramm des Verlaufs des Drehwinkels α in Abhängigkeit der Zeit, Geschwindigkeit und Fadenstärke nach dem erfindungsgemäßen Verfahren und relativ zur Ideallinie, in 100-facher Vergrößerung,
- Fig. 5
- den Verlauf der Winkelgeschwindigkeit Omega, des Drehwinkels α und des Anpressdruckes über eine Spulreise, also dem Durchmesser der Spule nach dem Stand der Technik, und
- Fig. 6
- den Verlauf der Winkelgeschwindigkeit Omega, des Drehwinkels α und des Anpressdruckes über eine Spulreise, also dem Durchmesser der Spule bei der erfindungsgemäßen Spulmaschine.
- 1 -
- Drehteller
- 2 -
- Spulspindel
- 3 -
- Spulspindel
- 4 -
- Kontaktwalze
- 5 -
- Spule
Claims (10)
- Spulmaschine zum Aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule (5),
mit einem während der Spulreise ohne Unterbrechung über einen Motor angetriebenen Drehteller (1), auf dem zwei antreibbare Spulspindeln (2, 3) drehbar gelagert sind,
mit einer Verlegeeinrichtung,
mit einer am Umfang der sich in Betrieb befindlichen Spulspindel (2 oder 3) bildenden Spule (5) anliegenden Kontaktwalze (4),
mit einer Einrichtung zur Ermittlung der Geschwindigkeit des Fadens oder der Drehzahl nK der Kontaktwalze,
mit einer Einrichtung zur Ermittlung der jeweils aktuellen Drehzahl nS der in Betrieb befindlichen Spulspindel (2),
mit einer Recheneinheit zur Ermittlung des jeweils aktuellen Solldrehwinkels αsoll des Motors des Drehtellers unter Anwendung einer Formel betreffend die geometrischen Beziehungen der Spulmaschine oder durch Vergleich mit einer hinterlegten Wertetabelle und zur Berechnung des jeweiligen aktuellen Durchmessers DS der sich auf der in Betrieb befindlichen Spulspindel (2 oder 3) bildenden Spule (5),
und mit einer Regeleinrichtung für die kontinuierliche Drehung des Drehtellers während der Spulreise,
dadurch gekennzeichnet, dass die Recheneinheit zur Berechnung einer jeweils aktuellen Winkeldifferenz Δα zwischen dem jeweils aktuellen Solldrehwinkel αsoll und dem jeweils aktuellen Istdrehwinkel αist des Motors des Drehtellers (1) an festgelegten Stützpunkten über die Spulreise ausgebildet ist,
und dass die Regeleinrichtung zur Ansteuerung des Motors des Drehtellers an den festgelegten Stützpunkten mit den den jeweils aktuellen Winkeldifferenzen Δα entsprechenden Signalen als Stellgrößen ausgebildet ist. - Spulmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Recheneinheit zur Generierung der Folge von Stellgrößen als Signale, die den jeweils aktuellen Winkeldifferenzen Δα entsprechen, multipliziert mit Verstärkungsfaktoren, ausgebildet ist.
- Spulmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Recheneinheit zur Ermittlung jeweils aktueller Zeitdifferenzen ΔT zwischen den festgelegten Stützpunkten zeitlich parallel zu der Bildung der den jeweils aktuellen Winkeldifferenzen Δα entsprechenden Signalen ausgebildet ist.
- Spulmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Kontaktwalze (4) relativ zu der Achse des Drehtellers (1) ortsfest gelagert ist.
- Spulmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Kontaktwalze (4) relativ zu der Achse des Drehtellers (1) und damit zu der jeweiligen Spulspindel (2 oder 3) ausweichbar gelagert ist, und dass eine Einrichtung zur Steuerung einer konstanten oder gesteuert veränderlichen Anpresskraft der Kontaktwalze (4) auf die in Betrieb befindliche Spulspindel (2 oder 3) vorgesehen ist.
- Spulmaschine nach einem der vorangehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Recheneinheit zur Generierung einer Folge von Stellgrößen entsprechend den Stützpunkten mit einem Wiederholtakt von etwa 10 msec ausgebildet ist.
- Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule (5) einer Spulmaschine, bei dem ein Drehteller (1), auf dem zwei antreibbare Spulspindeln (2, 3) drehbar gelagert sind, gegenüber einer Kontaktwalze (4) kontinuierlich mit sich in der Regel ändernden Winkelgeschwindigkeiten unabhängig von einer Bewegung der Kontaktwalze (4) gedreht wird und der Faden mit einer Verlegeeinrichtung über die Kontaktwalze (4) auf die Spule (5) aufgewickelt wird, wobei der Abstand zwischen der Achse der Kontaktwalze (4) und der Achse der in Betrieb befindlichen Spulspindel (2 oder 3) im Sinne einer Vergrößerung entsprechend dem wachsenden Durchmesser der Spule (5) ohne Unterbrechung des Antriebes des Drehtellers (1) verändert wird, und wobei der jeweis aktuelle Durchmesser DS der Spule aus der ermittelten Drehzahl nS der Spulspindel und aus der ermittelten Drehzahl nK der Kontaktwalze oder der ermittelten Zuliefergeschwindigkeit des Fadens berechnet wird, dadurch gekennzeichnet, dass an festgelegten Stützpunkten über die Spulreise der jeweils aktuelle Istdrehwinkel αist des Motors des Drehtellers (1) ermittelt und unter Anwendung einer Formel betreffend die geometrischen Beziehungen der Spulmaschine oder durch Vergleich mit einer hinterlegten Wertetabelle der jeweils aktuelle Solldrehwinkel αsoll des Motors des Drehtellers, der zu dem jeweils aktuellen Durchmesser DS der Spule gehört, ermittelt wird, an den festgelegten Stützpunkten eine jeweils aktuelle Winkeldifferenz Δα zwischen dem jeweils aktuellen Solldrehwinkel αsoll und dem jeweils aktuellen Istdrehwinkel αist des Motors des Drehtellers gebildet wird, und der Motor des Drehtellers (1) an den festgelegten Stützpunkten mit den den jeweils aktuellen Winkeldifferenzen Δα entsprechenden Signalen als Stellgrößen angesteuert wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass als Stellgrößen die den jeweils aktuellen Winkeldifferenzen Δα entsprechenden Signale, multipliziert mit Verstärkungsfaktoren, eingesetzt werden.
- Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass zeitlich parallel zu der Bildung der den jeweils aktuellen Winkeldifferenzen Δα entsprechenden Signalen jeweils aktuelle Zeitdifferenzen ΔT zwischen den festgelegten Stützpunkten ermittelt werden, die in der Folge der Stellgrößen berücksichtigt werden.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass in über die Spulreise konstanten Zeitabständen, insbesondere in etwa 10 msec, festgelegte Stützpunkte Anwendung finden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10207900 | 2002-02-21 | ||
DE2002107900 DE10207900A1 (de) | 2002-02-21 | 2002-02-21 | Spulmaschine und Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1338544A2 true EP1338544A2 (de) | 2003-08-27 |
EP1338544A3 EP1338544A3 (de) | 2004-01-02 |
Family
ID=27635285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03003311A Withdrawn EP1338544A3 (de) | 2002-02-21 | 2003-02-13 | Spulmaschine und Verfahren zum aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1338544A3 (de) |
DE (1) | DE10207900A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024012929A1 (de) * | 2022-07-09 | 2024-01-18 | Oerlikon Textile Gmbh & Co. Kg | VERFAHREN UND VORRICHTUNG ZUM ERMITTELN EINER DREHZAHLSTELLGRÖßE FÜR EINE ANTRIEBSEINHEIT EINES SPULSPINDELREVOLVERS |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19538480C1 (de) * | 1995-10-16 | 1997-05-07 | Sahm Georg Fa | Spulmaschine und Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule |
EP0770030B1 (de) * | 1994-07-05 | 1998-10-14 | NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH | Verfahren zum steuern des drehantriebs einer aufspulmaschine |
EP1118569A2 (de) * | 1999-12-17 | 2001-07-25 | COGNETEX S.r.l. | Verfahren zur Steuerung der Schwenkbewegung von dem Spindelträger einer Fadenaufwickelvorrichtung |
-
2002
- 2002-02-21 DE DE2002107900 patent/DE10207900A1/de not_active Withdrawn
-
2003
- 2003-02-13 EP EP03003311A patent/EP1338544A3/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0770030B1 (de) * | 1994-07-05 | 1998-10-14 | NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH | Verfahren zum steuern des drehantriebs einer aufspulmaschine |
DE19538480C1 (de) * | 1995-10-16 | 1997-05-07 | Sahm Georg Fa | Spulmaschine und Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens auf eine Spule |
EP1118569A2 (de) * | 1999-12-17 | 2001-07-25 | COGNETEX S.r.l. | Verfahren zur Steuerung der Schwenkbewegung von dem Spindelträger einer Fadenaufwickelvorrichtung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024012929A1 (de) * | 2022-07-09 | 2024-01-18 | Oerlikon Textile Gmbh & Co. Kg | VERFAHREN UND VORRICHTUNG ZUM ERMITTELN EINER DREHZAHLSTELLGRÖßE FÜR EINE ANTRIEBSEINHEIT EINES SPULSPINDELREVOLVERS |
Also Published As
Publication number | Publication date |
---|---|
EP1338544A3 (de) | 2004-01-02 |
DE10207900A1 (de) | 2003-09-25 |
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