EP0166292B1 - Traversing device for a winding machine - Google Patents

Traversing device for a winding machine Download PDF

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Publication number
EP0166292B1
EP0166292B1 EP85107151A EP85107151A EP0166292B1 EP 0166292 B1 EP0166292 B1 EP 0166292B1 EP 85107151 A EP85107151 A EP 85107151A EP 85107151 A EP85107151 A EP 85107151A EP 0166292 B1 EP0166292 B1 EP 0166292B1
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EP
European Patent Office
Prior art keywords
guide
stroke
yarn
thread
traversing
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
Application number
EP85107151A
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German (de)
French (fr)
Other versions
EP0166292A1 (en
Inventor
Heinz Dr.-Ing. Schippers
Erich Dr.-Ing. Lenk
Herbert Ing. Turk (Grad.)
Herbert Schiminski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19843422529 external-priority patent/DE3422529A1/en
Application filed by Barmag AG filed Critical Barmag AG
Publication of EP0166292A1 publication Critical patent/EP0166292A1/en
Application granted granted Critical
Publication of EP0166292B1 publication Critical patent/EP0166292B1/en
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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
    • B65H54/2836—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn
    • B65H54/2839—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn counter rotating guides, e.g. wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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 for winding a thread into a package according to the preamble of claim 1.
  • the winding machine is known from DE-OS 1 710 068.
  • a winding machine which also consists of two traversing devices.
  • motion laws for the first and second traversing device are specified, essentially with the content that the stroke lengths are essentially the same and that the first traversing device is operated with temporary acceleration before or after the stroke reversal with only a slight change in speed , while the groove profile of the grooved roller in the stroke reversal causes a sudden change in speed.
  • These laws of motion also apply to the traversing device according to the generic term. It has been found, however, that when a so-called wing traversing is used as the first traversing device, the motion law according to the invention can also be used and causes exact thread guidance.
  • the first traversing device - in the course of the thread - is developed in such a way that the guide ruler upstream or downstream of the driver arms and the driver arms are assigned to one another and shaped in such a way that the driver arms give the thread an overstroke.
  • the guide stroke of the first traversing device is greater than the traversing stroke of the subsequent second traversing device, which is designed as a grooved roller, and essentially corresponds to the coil length.
  • the guide and driver arms are designed in accordance with the invention in such a way that the thread receives a very high acceleration in the opposite direction at the end of the guide stroke, so that it suddenly reverses its direction of movement and is moved back towards the center of the traversing stroke with extremely high acceleration and speed until it reaches the entry point into the Groove with approximately the routing angle.
  • the thread is then guided in the central region of the guide stroke essentially at the traversing speed of the grooved roller.
  • the first traversing device at the stroke reversing points with a slight change in speed and before and / or after the stroke reversing points is sometimes guided at a greater speed than the speed maintained in the central region of the traversing stroke and the stroke length of the first traversing device is approximately equal to the stroke length between the thread guide grooves
  • the required law of motion of the first traversing device can be achieved by designing the guide ruler upstream or downstream of the driver arms and the driver arms at their thread-guiding ends (cf. e.g. DE-PS 1 560 469).
  • This shaping is preferably carried out in the stroke reversal areas in such a way that the thread is guided to the end of the guide stroke at the speed which is also maintained in the middle area of the traverse stroke and then reversed in its direction of movement with very great acceleration and is so far traced back to the law of motion observed in the middle traverse stroke area that it leads to the entry point of the groove with approximately the laying angle.
  • this return can take place in that driver arms and guide ruler are designed in such a way that the positive guidance of the thread is briefly released when the end of the guide stroke is reached, so that the thread snaps back under its own thread tension into that through the grooves of the grooving roller given motion law of the middle stroke range.
  • the thread does not fall out of the grooves of the grooved roller, but is guided through the first traversing device in such a way that this does not occur.
  • the large overstroke provided according to the invention is required in particular.
  • This overstroke (Ü) is essentially equal to the drag length (L) x tangent alpha, where alpha is the laying angle of the thread on the bobbin, i.e. is the angle between the tangent lying in the normal plane and the thread.
  • the shortest distance between the lines of thread engagement of the first and the second traversing device is called the drag length.
  • Ü L x tan alphan.
  • Fig. 1 shows the cross section
  • Fig. 2 shows the view of an embodiment of the winding machine according to the invention, partially schematically.
  • the thread 3 running continuously in the direction of 2 is first passed through the stationary thread guide 1 and then through the traverse 4.
  • the winding spindle 5 is freely rotatable.
  • An empty tube 10 is slipped onto the winding spindle 5.
  • the thread 3, which runs at a constant speed, for example freshly spun and / or drawn man-made fibers, is wound on the empty tube 10 to form a cheese 6.
  • the empty tube 10 and then the coil 6 that is formed are driven at their circumference by a drive roller 21 (not visible in FIG. 2) at a constant circumferential speed.
  • the thread 3 is moved back and forth along each cross-wound bobbin by the traversing 4, which is described below.
  • the traversing mechanism 4 and the drive roller 21 are mounted together on a carriage 22, which can be moved up and down on guide rods 24, so that the drive roller 21 can avoid the growing coil diameter of the coil 6.
  • the weight of the carriage 22 is partially due to the support device 23 - here a cylinder-piston unit compensated.
  • the carrying device can be controlled in such a way that the carriage with the drive roller 21 lifts off the coil circumference.
  • the traversing 4 consists, on the one hand, of a wing traversing and, on the other hand, of a grooved roller 11 arranged downstream of this in the thread path.
  • the traversing has its own drive, not shown.
  • Wing traversing and grooved roller are connected in a geared manner (not shown).
  • the particular advantage of the traversing shown is that the depositing angle of the thread on the spool can vary - within limits - from the angle of inclination of the slots, since the traversing speed can be set independently of the spooling speed.
  • the wing hinge has the rotor 12 and the rotor 13. Both rotors can be mounted concentrically or eccentrically to one another. Both rotors are driven in opposite directions by a drive and gear, not shown, in gear housing 20.
  • the rotor 12 carries two or three or four driver arms 8 which rotate in the plane of rotation 1 (arrow 18).
  • the rotor 13 carries the same number of driver arms 7 which rotate in the closely adjacent plane of rotation 11 (arrow 17).
  • the driver arms guide the thread along the guide ruler 9. Each driver arm 8 transports the thread - in FIG. 2 - to the right and transfers it there at the guide end to a driver arm 7, which transports the thread in the opposite direction to the other guide end, where in turn one of the driver arms 8 takes over the return.
  • the grooved roller 11 has a grooved train. It should be noted that the groove depth changes in the course of the grooves.
  • the grooves preferably form an uninterrupted groove train. However, it can also be provided that the grooves run out on the surface in the central region of the groove roller.
  • the grooved roller is driven synchronously with the wing traversing in the illustrated case with a transmission ratio 1:20.
  • the law of motion with which the thread 3 is deposited on the bobbin 6 is essentially predetermined by the course of the groove train.
  • the law of motion with which the thread is guided back and forth through the driver arms 7, 8 is - as stated - predetermined by the geometry of the ends of the driver arms and the guide rule 9.
  • the law of motion is determined on the one hand by the constant peripheral speed of the driver arms.
  • the thread also executes radial movements with respect to the driver arms, which are predetermined by the shape of the guide ruler.
  • the curves 25 to 33 are path-time diagrams of the thread movement, the common abscissa being the traversing stroke H of the grooved roller or the guiding stroke F of the first traversing device, and each of the two curves being a separate time Has ordinates which are shifted relative to one another in such a way that a stroke difference of approximately the amount U results between two thread points in the first and second traversing device considered at the same time.
  • Fig. 3 the curve 25 (groove course) shows the geometry of a thread guide groove of the grooved roller at the right stroke end of the traversing stroke H.
  • the theoretical stroke end lies at point 26, which essentially also denotes the bobbin length.
  • the groove is led slightly beyond this theoretical stroke in the branch 27 in order to take into account the fact that the thread deposited on the bobbin tends to slide inwards.
  • Curve 30 shows a part of the law of movement of the back and forth, which is given to the thread by the driver arms 7, 8. It can be seen from this that the guide stroke F of the first traversing device is greater than the traversing stroke H. This difference is also called the carryover of the thread; it is labeled U. The difference is proportional, on the one hand, to the distance L, which exists between the guide ruler 9 or the planes of rotation I, 11 of the wings and the surface line of the grooved roller 11, in which the thread runs onto the grooved roller, and, on the other hand, to the depositing angle alpha. The distance L, also referred to as the drag length, is practically measured from the center plane between the rotation planes 1 and II.
  • the angle alpha between the groove between the groove of the grooved roller and the tangent to the grooved roller is referred to here.
  • the thread is first guided at a speed (branch 31) to the end of the guide stroke F, which essentially corresponds to the traversing speed of the thread deposit according to branch 28 of the curve 25 of the grooved roller, but with a forward run substantially corresponding to the distance U.
  • the thread is braked with an extremely high change in speed and reversed in its direction of movement, so that it moves back at an excessive speed in the curved branch 32 into an area 33 which essentially, i.e., with the curved branch 29 of the grooved roller. aligns with the possibility of a small angle of deviation.
  • the path of the stroke 33 of the first traversing device in the middle stroke range corresponds to the thread deposit 29 after the reversal of the stroke with a phase-shift in phase, so that at the same time the first traversing device is essentially ahead of the distance U of the second traversing device.
  • the strong delay and acceleration of the thread at the end of the guide stroke is achieved either by positive guidance or by releasing the thread. Suitable measures are shown in FIGS. 4 and 5.
  • the thread is deflected at the ends of the guide stroke F between the guide ruler 9.1 and the curved guide ruler 9.2, which, as shown in FIG. 4, are arranged one above the other in the thread run.
  • the guiding lines overlap. This overlap ends in an end region E.
  • FIG 5 shows a top view of the end pieces of the driver arms 7 and 8 and the guide rulers 9.1 and 9.2 in the end region of the guide stroke F of the first traversing device.
  • the thread can therefore perform an unhindered or only slightly hindered return in the region E from the end of the guide stroke in the direction of the center of the stroke.
  • the intensity of the free return depends on the thread tension.
  • the free mobility of the thread allows very high decelerations and accelerations to be exerted on the thread, so that in the area of the free return a movement law approximately corresponding to the curve branch 32 according to movement law 30 in FIG. 3 is achieved.
  • the return movement is braked, so that the pushing edge 34 of the driving arm 8 entering the guide stroke can catch up with the thread and take over and guide with a guide length which is sufficiently superior to the guide ruler 9.1.
  • the thread is then forcibly guided again by the pushing edge 34 of the driving arm 7 according to a predetermined law of motion in accordance with the curve branch 33 of the law of motion 30 according to FIG. 3.

Description

Die Erfindung betrifft eine Aufspulmaschine zum Aufspulen eines Fadens zur einer Kreuzspule nach dem Oberbegriff des Anspruchs 1. Insoweit ist die Aufspulmaschine durch DE-OS 1 710 068 bekannt.The invention relates to a winding machine for winding a thread into a package according to the preamble of claim 1. In this respect, the winding machine is known from DE-OS 1 710 068.

Durch die DE-PS 2 040 479 ist eine Aufspulmaschine bekannt, die ebenfalls aus zwei Changiereinrichtungen besteht. Hierbei werden zur sicheren Fadenführung Bewegungsgesetze für die erste und zweite Changiereinrichtung angegeben, im wesentlichem mit dem Inhalt, dass die Hublängen im wesentlichen gleich sind und dass die erste Changiereinrichtung bei zeitweiliger Beschleunigung vor bzw. nach der Hubumkehr in der Hubumkehr mit nur geringer Geschwindigkeitsänderung betrieben wird, während der Nutenverlauf der Nutwalze in der Hubumkehr eine plötzliche Geschwindigkeitsänderung hervorruft. Diese Bewegungsgesetze sind auch für die Changiereinrichtung nach dem Oberbegriff gültig. Es hat sich jedoch herausgestellt, dass bei Verwendung einer sog. Flügelchangierung als erster Changiereinrichtung auch das erfindungsgemässe Bewegungsgesetz anwendbar ist und eine exakte Fadenführung bewirkt.From DE-PS 2 040 479 a winding machine is known which also consists of two traversing devices. Here, for safe thread guidance, motion laws for the first and second traversing device are specified, essentially with the content that the stroke lengths are essentially the same and that the first traversing device is operated with temporary acceleration before or after the stroke reversal with only a slight change in speed , while the groove profile of the grooved roller in the stroke reversal causes a sudden change in speed. These laws of motion also apply to the traversing device according to the generic term. It has been found, however, that when a so-called wing traversing is used as the first traversing device, the motion law according to the invention can also be used and causes exact thread guidance.

Nach dieser Erfindung wird die - im Fadenlauf - erste Changiereinrichtung darart weitergebildet, dass das den Mitnehmerarmen vor- oder nachgeordnete Leitlineal und die Mitnehmerarme derart einander zugeordnet und derart geformt sind, dass die Mitnehmerarme dem Faden einen Überhub erteilen. Das bedeutet, dass der Führungshub der ersten Changiereinrichtung grösser ist als der der Spulenlänge im wesentlichen entsprechende Changierhub der nachfolgenden, als Nutenwalze ausgebildeten zweiten Changiereinrichtung. Ferner werden Leitlineal und Mitnehmerarme erfindungsgemäss so gestaltet, dass der Faden am Führungshubende eine sehr hohe Beschleunigung in Gegenrichtung erhält, so dass er seine Bewegungsrichtung stossartig umkehrt und mit extrem hoher Beschleunigung und Geschwindigkeit so weit in Richtung Changierhubmitte zurückbewegt wird, bis er dem Einlaufpunkt in die Nut mit etwa dem Verlegungswinkel vorläuft. Sodann wird der Faden im mittleren Bereich des Führungshubs im wesentlichen mit der Changiergeschwindigkeit der Nutwalze geführt. Während nach der DE-PS 2 040 479 die erste Changiereinrichtung an den Hubumkehrstellen mit geringer Geschwindigkeitsänderung und vor und/oder nach den Hubumkehrstellen zeitweillig mit grösserer als der im mittleren Bereich des Changierhubs eingehaltenen Geschwindigkeit geführt ist und die Hublänge der ersten Changiereinrichtung annähernd gleich der Hublänge zwischen den Fadenführungsnuten ist, hat sich erfindungsgemäss bei Verwendung einer Flügelchangierung als erster Changiereinrichtung herausgestellt, dass die erste Changiereinrichtung den Faden an den Hubumkehrstellen mit sehr hoher, theoretisch mit «unendlich» grosser Geschwindigkeitsänderung in seiner Bewegungsrichtung umkehren und mit theoretisch «unendlich» hoher Geschwindigkeit in Richtung Changierhubmitte zurückführen kann und damit eine exakte Führung des Fadens in den Nuten der Nutwalze sicherstellt.According to this invention, the first traversing device - in the course of the thread - is developed in such a way that the guide ruler upstream or downstream of the driver arms and the driver arms are assigned to one another and shaped in such a way that the driver arms give the thread an overstroke. This means that the guide stroke of the first traversing device is greater than the traversing stroke of the subsequent second traversing device, which is designed as a grooved roller, and essentially corresponds to the coil length. Furthermore, the guide and driver arms are designed in accordance with the invention in such a way that the thread receives a very high acceleration in the opposite direction at the end of the guide stroke, so that it suddenly reverses its direction of movement and is moved back towards the center of the traversing stroke with extremely high acceleration and speed until it reaches the entry point into the Groove with approximately the routing angle. The thread is then guided in the central region of the guide stroke essentially at the traversing speed of the grooved roller. While according to DE-PS 2 040 479, the first traversing device at the stroke reversing points with a slight change in speed and before and / or after the stroke reversing points is sometimes guided at a greater speed than the speed maintained in the central region of the traversing stroke and the stroke length of the first traversing device is approximately equal to the stroke length between the thread guide grooves, it has been found according to the invention when using a wing traversing as the first traversing device that the first traversing device reverses the thread at the reversal points with a very high, theoretically with “infinitely” large speed change in its direction of movement and with theoretically “infinitely high speed in Can lead back to the center of the traversing stroke and thus ensures an exact guidance of the thread in the grooves of the grooved roller.

Es ist bekannt, dass das erforderliche Bewegungsgesetz der ersten Changiereinrichtung dadurch erzielt werden kann, dass das den Mitnehmerarmen vor- oder nachgeordnete Leitlineal und die Mitnehmerarme an ihren fadenführenden Enden entsprechend gestaltet werden (vgl, z.B. DE-PS 1 560 469). Vorzugsweise erfolgt diese Formgebung in den Hubumkehrbereichen so, dass der Faden mit der auch im mittleren Bereich des Changierhubs eingehaltenen Geschwindigkeit bis zu dem Führungshubende geführt und sodann mit sehr grosser Beschleunigung in seiner Bewegungsrichtung umgekehrt und wieder auf das im mittleren Changierhubbereich eingehaltene Bewegungsgesetz so weit zurückgeführt wird, dass er dem Einlaufpunkt der Nut mit ungefähr dem Verlegungswinkel vorläuft. Dieses Zurückführen kann nach einer bevorzugten Ausführung der Erfinung dadurch erfolgen, dass Mitnehmerarme und Leitlineal so gestaltet werden, dass die Zwangsführung des Fadens bei Erreichen des Führungshubendes kurzzeitig freigegeben wird, so dass der Faden damit unter seiner eigenen Fadenspannung zurückschnellt in das durch die Nuten der Nutwalze vorgegebene Bewegungsgesetz des mittleren Hubbereichs.It is known that the required law of motion of the first traversing device can be achieved by designing the guide ruler upstream or downstream of the driver arms and the driver arms at their thread-guiding ends (cf. e.g. DE-PS 1 560 469). This shaping is preferably carried out in the stroke reversal areas in such a way that the thread is guided to the end of the guide stroke at the speed which is also maintained in the middle area of the traverse stroke and then reversed in its direction of movement with very great acceleration and is so far traced back to the law of motion observed in the middle traverse stroke area that it leads to the entry point of the groove with approximately the laying angle. According to a preferred embodiment of the invention, this return can take place in that driver arms and guide ruler are designed in such a way that the positive guidance of the thread is briefly released when the end of the guide stroke is reached, so that the thread snaps back under its own thread tension into that through the grooves of the grooving roller given motion law of the middle stroke range.

Im Gegensatz zu der Ausführung nach der DE-OS 1 710 068 fällt der Faden dabei jedoch nicht aus den Nuten der Nutwalze heraus, sondern ist durch die erste Changiereinrichtung so geführt, dass dies nicht eintritt. Hierzu ist insbesondere der nach der Erfindung vorgesehene grosse Überhub erforderlich. Dieser Überhub (Ü) ist im wesentlichen gleich Schlepplänge (L) x tangens alpha, wobei alpha der Verlegewinkel des Fadens auf der Spule, d.h. der Winkel zwischen der in der Normalebene liegenden Tangente und dem Faden ist. Als Schlepplänge ist der kürzeste Abstand zwischen den Linien des Fadenangriffs der ersten und der zweiten Changiereinrichtung bezeichnet. Ü = L x tan alphan.In contrast to the version according to DE-OS 1 710 068, however, the thread does not fall out of the grooves of the grooved roller, but is guided through the first traversing device in such a way that this does not occur. For this purpose, the large overstroke provided according to the invention is required in particular. This overstroke (Ü) is essentially equal to the drag length (L) x tangent alpha, where alpha is the laying angle of the thread on the bobbin, i.e. is the angle between the tangent lying in the normal plane and the thread. The shortest distance between the lines of thread engagement of the first and the second traversing device is called the drag length. Ü = L x tan alphan.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels beschrieben.The invention is described below using an exemplary embodiment.

Fig. 1 zeigt den Querschnitt, Fig. 2 die Ansicht eines Ausführungsbeispiels der erfindungsgemässen Aufspulmaschine, teilweise schematisch.Fig. 1 shows the cross section, Fig. 2 shows the view of an embodiment of the winding machine according to the invention, partially schematically.

Der kontinuierlich mit Richtung 2 anlaufende Faden 3 wird zunächst durch den ortsfesten Fadenführer 1 und sodann durch die Changierung 4 geführt. Die Spulspindel 5 ist frei drehbar gelagert. Auf der Spulspindel 5 ist eine Leerhülse 10 aufgesteckt. Der Faden 3, der mit konstanter Geschwindigkeit anläuft, z.B. frisch gesponnene und/oder verstreckte Chemiefasern, wird auf der Leerhülse 10 zu einer Kreuzspule 6 aufgewickelt. Hierzu werden zu Beginn der Spulreise die Leerhülse 10 und sodann die sich bildende Spule 6 an ihrem Umfang durch eine Treibwalze 21 (in Fig. 2 nicht sichtbar) mit konstanter Umfangsgeschwindigkeit angetrieben. Dabei wird der Faden 3 durch die Changierung 4, die weiter unten beschrieben wird, längs jeder Kreuzspule hin- und herverlegt. Die Changierung 4 und die Treibwalze 21 sind gemeinsam auf einem Schlitten 22 gelagert, der an Führungsstangen 24 auf und ab beweglich ist, so dass die Treibwalze 21 dem wachsenden Spulendurchmesser der Spule 6 ausweichen kann. Das Gewicht des Schlittens 22 ist durch die Trageinrichtung 23 - hier eine Zylinder-Kolben-Einheit - teilweise kompensiert. Ausserdem kann die Trageinrichtung derart gesteuert werden, dass der Schlitten mit der Treibwalze 21 vom Spulenumfang abhebt.The thread 3 running continuously in the direction of 2 is first passed through the stationary thread guide 1 and then through the traverse 4. The winding spindle 5 is freely rotatable. An empty tube 10 is slipped onto the winding spindle 5. The thread 3, which runs at a constant speed, for example freshly spun and / or drawn man-made fibers, is wound on the empty tube 10 to form a cheese 6. For this purpose, at the beginning of the winding cycle, the empty tube 10 and then the coil 6 that is formed are driven at their circumference by a drive roller 21 (not visible in FIG. 2) at a constant circumferential speed. The thread 3 is moved back and forth along each cross-wound bobbin by the traversing 4, which is described below. The traversing mechanism 4 and the drive roller 21 are mounted together on a carriage 22, which can be moved up and down on guide rods 24, so that the drive roller 21 can avoid the growing coil diameter of the coil 6. The weight of the carriage 22 is partially due to the support device 23 - here a cylinder-piston unit compensated. In addition, the carrying device can be controlled in such a way that the carriage with the drive roller 21 lifts off the coil circumference.

Die Changierung 4 besteht zum einen aus einer Flügelchangierung und zum anderen aus einer dieser im Fadenlauf nachgeschalteten Nutenwalze 11. Die Changierung besitzt einen eigenen, nicht dargestellten Antrieb. Flügelchangierung und Nutenwalze sind getrieblich (nicht dargestellt) verbunden. Der besondere Vorteil der gezeigten Changierung liegt darin, dass der Ablagewinkel des Fadens auf der Spule vom Neigungswinkel der Nuten - in Grenzen - abweichen kann, da die Changiergeschwindigkeit unahängig von der Spulgeschwindigkeit einstellbar ist. Insbesondere ist es möglich, die Changiergeschwindigkeit zum Zwecke der Spiegelvermeidung ständig um einen Mittelwert pendeln zu lassen oder zwischen zwei nahe beieinander liegenden Werten bei Spiegelgefahr umzuschalten oder proportional zur Spulendrehzahl jedenfalls zeitweilig zu verändern.The traversing 4 consists, on the one hand, of a wing traversing and, on the other hand, of a grooved roller 11 arranged downstream of this in the thread path. The traversing has its own drive, not shown. Wing traversing and grooved roller are connected in a geared manner (not shown). The particular advantage of the traversing shown is that the depositing angle of the thread on the spool can vary - within limits - from the angle of inclination of the slots, since the traversing speed can be set independently of the spooling speed. In particular, it is possible to have the traversing speed constantly oscillate around an average value for the purpose of avoiding mirrors or to switch between two closely spaced values when there is a risk of mirrors or to change them temporarily in any case proportionally to the spool speed.

Die Flügelschangierung weist den Rotor 12 und den Rotor 13 auf. Beide Rotoren können konzentrisch oder exzentrisch zueinander gelagert sein. Beide Rotoren werden durch einen nicht dargestellten Antrieb und Getriebe in Getriebegehäuse 20 gegensinnig angetrieben. Der Rotor 12 trägt zwei oder drei oder vier Mitnehmerarme 8, die in der Drehebene 1 rotieren (Pfeil 18). Der Rotor 13trägtdie gleiche Anzahl von Mitnehmerarmen 7, die in der eng benachbarten Drehebene 11 rotieren (Pfeil 17). Die Mitnehmerarme führen den Faden an dem Leitlineal 9 entlang. Jeder Mitnehmerarm 8 transportiert den Faden - in Fig. 2 - nach rechts und übergibt ihn dort am Führungsende an einen Mitnehmerarm 7, der den Faden in die Gegenrichtung bis zum anderen Führungsende transportiert, wo wiederum einer der Mitnehmerarme 8 die Rückführung übernimmt.The wing hinge has the rotor 12 and the rotor 13. Both rotors can be mounted concentrically or eccentrically to one another. Both rotors are driven in opposite directions by a drive and gear, not shown, in gear housing 20. The rotor 12 carries two or three or four driver arms 8 which rotate in the plane of rotation 1 (arrow 18). The rotor 13 carries the same number of driver arms 7 which rotate in the closely adjacent plane of rotation 11 (arrow 17). The driver arms guide the thread along the guide ruler 9. Each driver arm 8 transports the thread - in FIG. 2 - to the right and transfers it there at the guide end to a driver arm 7, which transports the thread in the opposite direction to the other guide end, where in turn one of the driver arms 8 takes over the return.

Weitere Einzelheiten ergeben sich aus den Anmeldungen EP 84100433.6 und EP 84100848.5 sowie DE-OS 3 404 303.9, auf die Bezug genommen wird.Further details result from the applications EP 84100433.6 and EP 84100848.5 and DE-OS 3 404 303.9, to which reference is made.

Die Nutenwalze 11 weist, wie in der Ansicht nach Fig. 2 erkennbar, einen Nutenzug auf. Es sei erwähnt, dass die Nutentiefe sich im Verlauf der Nuten ändert. Die Nuten bilden vorzugsweise einen ununterbrochenen Nutenzug. Es kann jedoch auch vorgesehen sein, dass die Nuten im mittleren Bereich der Nutwalze auf der Oberfläche auslaufen.As can be seen in the view according to FIG. 2, the grooved roller 11 has a grooved train. It should be noted that the groove depth changes in the course of the grooves. The grooves preferably form an uninterrupted groove train. However, it can also be provided that the grooves run out on the surface in the central region of the groove roller.

Die Nutenwalze ist synchron zu der Flügelchangierung angetrieben im dargestellten Fall mit einem Übersetzungsverhältnis 1:20. Das Bewegungsgesetz, mit dem der Faden 3 auf der Spule 6 abgelegt wird, ist im wesentlichen durch den Verlauf des Nutenzuges vorgegeben. Das Bewegungsgesetz, mit dem der Faden durch die Mitnehmerarme 7, 8 hin-und hergeführt wird, ist - wie gesagt - durch die Geometrie der Enden der Mitnehmerarme und des Leitlineals 9 vorgegeben. Das Bewegungsgesetz wird zum einen durch die konstante Umfangsgeschwindigkeit der Mitnehmerarme bestimmt. Darüberhinaus führt der Faden jedoch auch mit Bezug auf die Mitnehmerarme Radialbewegungen aus, die durch die Formgebung des Leitlineals vorgegeben sind. Durch Formgebung der Enden der Mitnehmerarme, insbesondere durch Abschrägungen kann bewirkt werden, dass der Faden sich mit einer Winkelgeschwindigkeit bewegt, die geringer oder grösser als die Winkelgeschwindigkeit der Mitnehmerarme ist. Durch Überlagerung dieser Bewegungsmöglichkeiten können für die Hin- und Her-Fadenführung beliebige Bewegungsgesetze erzeugt werden.The grooved roller is driven synchronously with the wing traversing in the illustrated case with a transmission ratio 1:20. The law of motion with which the thread 3 is deposited on the bobbin 6 is essentially predetermined by the course of the groove train. The law of motion with which the thread is guided back and forth through the driver arms 7, 8 is - as stated - predetermined by the geometry of the ends of the driver arms and the guide rule 9. The law of motion is determined on the one hand by the constant peripheral speed of the driver arms. In addition, however, the thread also executes radial movements with respect to the driver arms, which are predetermined by the shape of the guide ruler. By shaping the ends of the driver arms, in particular by means of bevels, it can be caused that the thread moves at an angular speed that is less or greater than the angular speed of the driver arms. By overlaying these movement possibilities, any movement laws can be generated for the back and forth thread guidance.

Zu Fig. 3 sei erwähnt, dass die Kurvenzüge 25 bis 33 Weg-Zeit-Diagramme der Fadenbewegung sind, wobei die gemeinsame Abszisse der Changierhub H der Nutenwalze bzw. der Führungshub F der ersten Changiereinrichtung ist und wobei jeder der beiden Kurvenzüge eine eigene Zeit-Ordinate hat, die relativ zueinander derart verschoben sind, dass sich zwischen zwei zeitgleich betrachteten Fadenpunkten in der ersten und zweiten Changiereinrichtung eine Hubdifferenz ungefähr vom Betrag U ergibt.3, it should be mentioned that the curves 25 to 33 are path-time diagrams of the thread movement, the common abscissa being the traversing stroke H of the grooved roller or the guiding stroke F of the first traversing device, and each of the two curves being a separate time Has ordinates which are shifted relative to one another in such a way that a stroke difference of approximately the amount U results between two thread points in the first and second traversing device considered at the same time.

In Fig. 3 zeigt der Kurvenzug 25 (Nutenverlauf) die Geometrie einer Fadenführungsnut der Nutwalze an dem rechten Hubende des Changierhubs H. Das theoretische Hubende liegt im Punkt 26, der im wesentlichen auch die Spulenlänge bezeichnet. Die Nut ist über diesen theoretischen Hub geringfügig im Ast 27 hinausgeführt, um dem Umstand Rechung zu tragen, dass der auf der Spule abgelegte Faden dazu neigt, nach innen zu rutschen.In Fig. 3 the curve 25 (groove course) shows the geometry of a thread guide groove of the grooved roller at the right stroke end of the traversing stroke H. The theoretical stroke end lies at point 26, which essentially also denotes the bobbin length. The groove is led slightly beyond this theoretical stroke in the branch 27 in order to take into account the fact that the thread deposited on the bobbin tends to slide inwards.

Kurvenzug 30 zeigt einen Teil des Bewegungsgesetzes der Hin- und Herführung, welches dem Faden durch die Mitnehmerarme 7, 8 erteilt wird. Man erkennt hieraus, dass der Führungshub F der ersten Changiereinrichtung grösser ist als der Changierhub H. Diese Differenz nennt man auch die Verschleppung des Fadens; sie ist mit U bezeichnet. Die Differenz ist zum einen dem Abstand L proportional, der zwischen dem Leitlineal 9 bzw. den Drehebenen I, 11 der Flügel und der Mantellinie der Nutwalze 11, in der der Faden auf die Nutwalze läuft, besteht, und zum anderen dem Ablagewinkel alpha proportional. Der Abstand L, auch als Schlepplänge bezeichnet, wird praktisch von der Mittelebene zwischen den Drehebenen 1 und II aus gemessen. Als Ablagewinkel alpha wird hier der Winkel zwischen der Nut der Nutwalze und der Tangente an die Nutwalze bezeichnet. Der Faden wird zunächst mit einer Geschwindigkeit (Ast 31) zum Ende des Führungshubs F geführt, die im wesentlichen der Changiergeschwindigkeit der Fadenablage nach Ast 28 des Kurvenzuges 25 der Nutwalze entspricht, allerdings mit einem der Strecke U im wesentlichen entsprechenden Vorlauf. Nach Erreichen des Endes des Führungshubes F wird der Faden mit extrem hoher Geschwindigkeitsänderung abgebremst und in seiner Bewegungsrichtung umgekehrt, so dass er mit überhöhter Geschwindigkeit im Kurvenast 32 in einen Bereich 33 zurückfährt, der mit dem Kurvenast 29 der Nutenwalze im wesentlichen, d.h. mit der Möglichkeit eines geringen Abweichungswinkels fluchtet. Der Hubverlauf 33 der ersten Changiereinrichtung im mittleren Hubbereich entspricht als Weg-Zeit-Diagramm also wiederum der Fadenablage 29 nach der Hubumkehr mit einer streckenmässigen Phasenverschiebung, so dass zu gleichen Zeitpunkten die erste Changiereinrichtung im wesentlichen um die Strecke U der zweiten Changiereinrichtung voraus ist.Curve 30 shows a part of the law of movement of the back and forth, which is given to the thread by the driver arms 7, 8. It can be seen from this that the guide stroke F of the first traversing device is greater than the traversing stroke H. This difference is also called the carryover of the thread; it is labeled U. The difference is proportional, on the one hand, to the distance L, which exists between the guide ruler 9 or the planes of rotation I, 11 of the wings and the surface line of the grooved roller 11, in which the thread runs onto the grooved roller, and, on the other hand, to the depositing angle alpha. The distance L, also referred to as the drag length, is practically measured from the center plane between the rotation planes 1 and II. The angle alpha between the groove between the groove of the grooved roller and the tangent to the grooved roller is referred to here. The thread is first guided at a speed (branch 31) to the end of the guide stroke F, which essentially corresponds to the traversing speed of the thread deposit according to branch 28 of the curve 25 of the grooved roller, but with a forward run substantially corresponding to the distance U. After reaching the end of the guide stroke F, the thread is braked with an extremely high change in speed and reversed in its direction of movement, so that it moves back at an excessive speed in the curved branch 32 into an area 33 which essentially, i.e., with the curved branch 29 of the grooved roller. aligns with the possibility of a small angle of deviation. The path of the stroke 33 of the first traversing device in the middle stroke range corresponds to the thread deposit 29 after the reversal of the stroke with a phase-shift in phase, so that at the same time the first traversing device is essentially ahead of the distance U of the second traversing device.

Erfindungsgemäss wird die starke Verzögerung und Beschleunigung des Fadens am Ende des Führungshubs entweder durch Zwangsführung oder durch Freigabe des Fadens erzielt. Geeignete Massnahmen sind in Fig. 4 und Fig. 5 gezeigt. Hier wird der Faden an den Enden des Führungshubes F zwischen dem Leitlineal 9.1 und dem gebogenen Leitlineal 9.2, die im Fadenlauf - wie Fig. 4 zeigt - übereinander angeordnet sind, umgelenkt. In einem ersten Bereich der Zwangsführung überlappen sich die Leitlineale. In einem Endbereich E hört diese Überlappung auf.According to the invention, the strong delay and acceleration of the thread at the end of the guide stroke is achieved either by positive guidance or by releasing the thread. Suitable measures are shown in FIGS. 4 and 5. Here, the thread is deflected at the ends of the guide stroke F between the guide ruler 9.1 and the curved guide ruler 9.2, which, as shown in FIG. 4, are arranged one above the other in the thread run. In a first area of forced guidance, the guiding lines overlap. This overlap ends in an end region E.

In Fig. 5 sind in Aufsicht die Endstücke der Mitnehmerarme 7 und 8 sowie die Leitlineale 9.1 und 9.2 in dem Endbereich des Führungshubes F der ersten Changiereinrichtung gezeigt.5 shows a top view of the end pieces of the driver arms 7 and 8 and the guide rulers 9.1 and 9.2 in the end region of the guide stroke F of the first traversing device.

Dargestellt ist ein Zeitpunkt, der kurz nach dem Zeitpunkt liegt, an dem die vordere Spitze des den Hubbereich verlassenden Mitnehmerarms 8 unter das Leitlineal 9.1 getaucht ist und den Faden freigegeben hat. Zu diesem frühen Zeitpunkt war die Schubkante 34des in den Changierhub einfahrenden Mitnehmerarms 7 noch nicht unter dem Leitiinea) 9.1 hervorgetaucht. Damit war für den Faden das Ende der Changierbewegung nach auswärts gekommen. Der Faden hatte also am Führungshubende keine Führung in Changierbewegung. Unter der Fadenzugkraft konnte daher der Faden einen Rücksprung ausführen. Dieser Rücksprung wird im Endbereich E durch die Zwangsführung des Fadens zwischen den Leitlinealen 9.1 und 9.2 nicht behindert, da hier keine oder nur eine geringfügige Überdeckung besteht. Der Faden kann also im Bereich E einen ungehinderten oder nur wenig gehinderten Rücksprung von dem Ende des Führungshubes in Richtung der Hubmitte ausführen. Die Intensität des freien Rücksprungs hängt von der Fadenzugkraft ab. Die freie Beweglichkeit des Fadens gestattet, sehr hohe Verzögerungen und Beschleunigungen auf den Faden auszuüben, so dass im Bereich des freien Rücksprungs ein Bewegungsgesetz ungefähr entsprechend dem Kurvenast 32 nach Bewegungsgesetz 30 in Fig. 3 erzielt wird. In dem anschliessenden Teilbereich von B der Überdeckung wird die Rücksprungbewegung dagegen gebremst, so dass die über dem Leitlineal 9.1 auftauchende Schubkante 34 des in den Führungshub einfahrenden Mitnehmerarms 8 den Faden einholen und mit einer das Leitlineal 9.1 ausreichend überragenden Führungslänge übernehmen und führen kann. Anschliessend wird also der Faden wieder durch die Schubkante 34 des Mitnehmerarms 7 nach einem vorbestimmten Bewegungsgesetz zwangsgeführt entsprechend dem Kurvenast 33 des Bewegungsgesetzes 30 nach Fig. 3.Shown is a point in time shortly after the point in time at which the front tip of the driving arm 8 leaving the lifting area is immersed under the guide rule 9.1 and has released the thread. At this early point in time, the thrust edge 34 of the driving arm 7 entering the traversing stroke had not yet emerged under the guide line 9.1. With that, the end of the traversing movement came outward for the thread. The thread thus had no guiding motion at the end of the guide stroke. The thread was therefore able to spring back under the thread tension. This return is not hindered in the end region E by the positive guidance of the thread between the guide lines 9.1 and 9.2, since there is no or only a slight overlap here. The thread can therefore perform an unhindered or only slightly hindered return in the region E from the end of the guide stroke in the direction of the center of the stroke. The intensity of the free return depends on the thread tension. The free mobility of the thread allows very high decelerations and accelerations to be exerted on the thread, so that in the area of the free return a movement law approximately corresponding to the curve branch 32 according to movement law 30 in FIG. 3 is achieved. In the adjoining partial area of B of the overlap, on the other hand, the return movement is braked, so that the pushing edge 34 of the driving arm 8 entering the guide stroke can catch up with the thread and take over and guide with a guide length which is sufficiently superior to the guide ruler 9.1. The thread is then forcibly guided again by the pushing edge 34 of the driving arm 7 according to a predetermined law of motion in accordance with the curve branch 33 of the law of motion 30 according to FIG. 3.

Claims (4)

1. Winding machine for winding a continuously running yarn (3) into a cross-wound package, comprising two traversing devices (7-9,11) which in the direction of the yarn path are arranged one behind the other and by which the yarn (3) is reciprocated essentially transversely to its running direction along a traverse stroke (H) essentially corresponding to the length of the package, with the first traversing device comprising two rotors (12, 13) rotatingly driven in opposite directions and each of them having at least two guide arms (7, 8) which rotate in two parallel planes of rotation (1, II) lying closely adjacent each other and transversely to the yarn path, and further comprising a yarn guide bar (9) extending parallel to the planes of rotation, and the second traversing device being a grooved roller (11) with yarn guiding grooves which is partially looped by the yarn (3), characterized by the fact that the guide bar (9) and the guide arms (7, 8) are shaped and arranged with respect to each other such that a guide stroke (F) which the yarn is guided along by the guide arms, extends beyond each of the ends of the traverse stroke (H), an that the yarn reverses its direction of movement by a very high deceleration and acceleration and is returned from the end area of the guide strocke (F) at a speed being higher than the average traverse speed.
2. Winding machine according to claim 1, characterized ty the fact that the guide arms (7, 8) and the guide bar (9) are shaped such that the guide arms, when reaching the end of their guide stroke (F) release the yarn from any positive guidance for a short period of time.
3. Winding machine according to claim 1 or 2, characterized by the fact that the grooved roller (11) is rotatingly driven independently of the package and preferably at a higher surface speed, however synchronously with respect to the drive of the guide arms (7, 8).
4. Winding machine according to any one of claims 1 to 3, characterized by the fact that the angle between the advancing and the returning grooved branch of the grooved roller (11) is smaller in the areas of stroke reversal than along the remainder of the course of the grooves.
EP85107151A 1984-06-16 1985-06-11 Traversing device for a winding machine Expired EP0166292B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19843422529 DE3422529A1 (en) 1984-06-16 1984-06-16 Winding machine
DE3422529 1984-06-16
DE3431838 1984-08-30
DE3431838 1984-08-30

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EP0166292A1 EP0166292A1 (en) 1986-01-02
EP0166292B1 true EP0166292B1 (en) 1987-09-16

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EP85107151A Expired EP0166292B1 (en) 1984-06-16 1985-06-11 Traversing device for a winding machine

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EP (1) EP0166292B1 (en)
DE (1) DE3560627D1 (en)

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DE3711893A1 (en) * 1987-04-08 1988-10-27 Barmag Barmer Maschf METHOD FOR APPLYING A THREAD DELIVERED AT A CONSTANT SPEED TO A BOBBIN
US4991783A (en) * 1987-12-30 1991-02-12 Teijin Seiki Co., Ltd. Yarn traversing method and an apparatus therefor
US4993650A (en) * 1988-11-07 1991-02-19 Appalachian Electronic Instruments, Inc. High speed precision yarn winding system
JPH02305766A (en) * 1989-05-19 1990-12-19 Murata Mach Ltd Traverse method for thread
TW295102U (en) * 1992-12-23 1997-01-01 Barmag Barmer Maschf Cross winding machine
US5524841A (en) * 1994-05-26 1996-06-11 Ppg Industries, Inc. Apparatus and methods for winding a plurality of strands
DE19524663A1 (en) * 1995-07-06 1997-01-09 Sahm Georg Fa Method and device for traversing thread-like or ribbon-like items to be wound
DE59707728D1 (en) * 1996-10-12 2002-08-22 Barmag Barmer Maschf REWINDING MACHINE FOR CONTINUOUSLY TURNING THREAD

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GB1099963A (en) * 1964-01-27 1968-01-17 Toshiba Machine Co Ltd Traverse mechanism
GB1131884A (en) * 1966-05-30 1968-10-30 Chatillon Italiana Fibre Device for winding yarn and thread
CH448835A (en) * 1966-08-19 1967-12-15 Schaerer Maschf Device for winding threads, yarns or tapes into cross-wound bobbins
FR1541176A (en) * 1967-09-18 1968-10-04 Plutte Thread guide for winders and bobbins
JPS4616298Y1 (en) * 1968-01-31 1971-06-07
US3650486A (en) * 1968-05-20 1972-03-21 Toray Industries Yarn traversing method and apparatus of a rotary blade type
DE1937178A1 (en) * 1969-07-22 1971-02-04 Zinser Textilmaschinen Gmbh Device for winding threads
AT332765B (en) * 1970-08-14 1976-10-11 Barmag Barmer Maschf FAST-RUNNING CROSS-WINDING DEVICE
US3861607A (en) * 1970-08-14 1975-01-21 Barmag Barmer Maschf High-speed cross-winding device
IT982032B (en) * 1972-04-21 1974-10-21 Siemens Ag DENTAL KNOB
GB1595971A (en) * 1977-03-04 1981-08-19 Mackie & Sons Ltd J Yarn winder
JPS57137025A (en) * 1981-02-17 1982-08-24 Furukawa Electric Co Ltd:The Manufacture of aluminum clad steel wire
DE3243985A1 (en) * 1981-12-03 1983-06-16 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Traversing device
US4505436A (en) * 1983-01-19 1985-03-19 Barmag Barmer Maschinenfabrik Ag Yarn winding apparatus
US4505437A (en) * 1983-01-29 1985-03-19 Barmag Barmer Maschinenfabrik Ag Apparatus for winding a plurality of yarns
DE3404303A1 (en) * 1984-02-08 1985-08-08 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Winding machine

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EP0166292A1 (en) 1986-01-02
DE3560627D1 (en) 1987-10-22
US4585181A (en) 1986-04-29

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