EP3281902B1 - Coil, winding machine, method for winding a coil and software product - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to a coil with a winding of a strip-shaped Spulguts. Furthermore, the invention relates to a method for winding such a coil. Another aspect of the invention relates to a winder. Finally, the invention relates to a software product with suitable control logic for carrying out a method for winding a coil or for a control unit of a winder.

• das bandförmige Spulgut als ein- oder mehrfädriges Bandmaterial, insbesondere ein Kunststoffband (bspw. aus PP, PET und/oder PE) und/oder mit einer Filament- oder "Fadenanzahl" kleiner oder gleich 4, ausgebildet ist,
• das bandförmige Spulgut eine Länge von zumindest 10.000 m, vorzugsweise zumindest 20.000 m oder 50.000m, aufweist,
• das bandförmige Spulgut eine Stärke von 0,01 mm bis 0,20 mm bei einer Breite im Bereich von 1 mm bis 8 mm (vorzugsweise eine Stärke von 0,02 mm bis 0,12 mm bei einer Breite im Bereich von 2 mm bis 6 mm) aufweist,
• der maximale Durchmesser der Wicklung zumindest 200 mm, 250 mm, 280 mm oder 320 mm beträgt,
• die Spule eine Gesamtmasse von mehr als 1 kg oder 2 kg oder 5 kg oder im Bereich von von 1 kg bis 10 kg aufweist und/oder
• ein Wickeln der Spule mit einer Zuführung des Spulguts mit einer Geschwindigkeit von zumindest 50 m/min (vorzugsweise zumindest 100 m/min oder 200 m/min) erfolgt,

ohne dass eine Beschränkung der Erfindung auf diese Angaben erfolgen soll.In particular, the spool, winder, method and software product find use in conjunction with spools in which

• the band-shaped winding material is designed as a single or multi-filament strip material, in particular a plastic strip (for example made of PP, PET and / or PE) and / or with a filament or "number of threads" smaller than or equal to 4,
• the band-shaped winding material has a length of at least 10,000 m, preferably at least 20,000 m or 50,000 m,
• the band-shaped winding material has a thickness of 0.01 mm to 0.20 mm with a width in the range of 1 mm to 8 mm (preferably a thickness of 0.02 mm to 0.12 mm with a width in the range of 2 mm to 6 mm),
• the maximum diameter of the winding is at least 200 mm, 250 mm, 280 mm or 320 mm,
• the coil has a total mass of more than 1 kg or 2 kg or 5 kg or in the range of from 1 kg to 10 kg and / or
• a winding of the bobbin with a supply of Spulguts at a speed of at least 50 m / min (preferably at least 100 m / min or 200 m / min),

without any limitation of the invention is to be made to this information.

A "band-shaped winding material" is to be understood here as meaning that the material to be wound does not have a circular cross-section, but instead has a flattening on at least two opposite sides. Preferably, the band-shaped winding material has a (at least in the first approximation) rectangular cross-section.

STATE OF THE ART

WO 2003/099695 A1 discloses a winding machine, in which a successive winding of coils takes place on two respective driven winding spindles. Here, the winding spindles are held on a rotatable parallel to the axes of rotation of the winding spindles turret. The winding spindles can be brought into a winding position and a change position depending on the rotational position of the revolver. In the winding position, the bobbin is wound on the winding spindle. In the change position, the finished wound coil is removed from the winding spindle. In the change position can be severed even after the complete winding of the bobbin on the winding spindle before removing the thread. Here, the end formed by the cut through the leading thread is still wound on the circumference of the full bobbin. On the other hand, the new beginning of the thread formed in this way should be grasped and anchored by a catching area of an empty winding tube, which is located on the other winding spindle, which is in the winding position. This is followed by a new winding on the new winding tube. The severing of the thread can be carried out by tearing as a result of an increase in the thread tension and / or by means of a cutting device. The catching area can be arranged on the respective winding tube within the laying width or outside the laying width. The catching area can in this case be designed, for example, as one or more incisions arranged distributed over the circumference of the winding tube or else also by means of a hooked strip strip. It is also possible that the catching area is formed by the winding spindle and thus independently of the winding tube. WO 2003/099695 A1 also describes the fixing of a thread on a winding tube by means of a fixing winding. A fixing winding is understood to be a bead-like winding of the thread, in which the thread layers are in a narrow axial region of the winding tube, either at a distance from the winding tube, ie outside a laying width, or in the region of the laying width, close to each other and / or one above the other be wound to fix the beginning of the thread on the winding tube. Is such a fixing winding outside the laying width on the Winding tube arranged, the thread must be transferred axially in the region of the laying width before the actual winding process. This is done by means of a so-called reserve winding. A reserve winding is understood to mean a winding of the thread on the winding tube which bridges the distance between a fixing winding arranged outside the laying width and the laying width and in which the thread is wound in a thread-like manner onto the winding tube. WO 2003/099695 A1 proposes a method for operating the winder, in which the spatial position of the traversing yarn guide of the traversing unit is detected. The detected spatial position is fed to a control unit of the winding machine at any time or calculated in the control unit. From the knowledge of the position of the traversing yarn guide can then (eg. At reduced speed of the Kehrgewindewelle) selectively targeted individual positions of the traversing yarn guide to take in relation to the drive of the winding spindle and the peripheral speed of the straight wound thread on the winding tube the necessary measures in particular to produce a fixing winding and possibly a subsequent reserve winding. As possible designs of a traversing unit calls WO 2003/099695 A1 a traversing unit with driven counter-clockwise shaft and conventional laying channel or else a traversing device with rotating blades. It is also proposed here, for the production of the fixing winding to decelerate the speed of the Kehrgewindewelle to zero when the traversing yarn guide spaced the required relative to the manufacture of the fixing winding relative position to the laying width of the winding spindle occupies. In this way, conventional Kehrgewindewellen be used with laying groove, whereby the additional arrangement of a pitchless groove portion, a use of a switch and u. U. also the reversal of the direction of rotation of the drive of the Kehrgewindewelle can be dispensed with. In order to achieve positions of the traversing yarn guide outside the laying width correlated with the extension of the laying channel of the counter-threading shaft, the traversing unit can be moved axially via a controllable drive (here with a pneumatically actuated piston-cylinder unit). In this case, the entire traversing unit, including its housing, can be moved relative to a machine frame by the drive, or only the counterbore shaft in the housing can be moved coaxially with the longitudinal axis of the winding spindle.

DE 10 2012 018 491 A1 also describes a winder with two held on a turret spindles, which can be alternately pivoted between a winding position and a change position. The incoming thread should be wound without significant interruption to coils. At the end of a winding cycle, the winding spindle with the finished wound coil moves into the change position, on the one hand to make a transfer of the thread to the guided into the winding position new winding spindle and on the other hand to allow the decrease of the finished wound coil of the winding spindle held in the change position. The end of the thread produced during the transfer of the thread is usually deposited on the circumference of the finished wound coil held in the change position. Described here is that the loose end of the thread in the removal of Spulguts from the spool and the transport of the coil may prove problematic. The reason for this is said that the loose end of the thread can get caught on furnishings and it can come to an unwanted removal of the thread from the spool. As known describes DE 10 2012 018 491 A1 to use a fluid as a fixing means for the loose end of the thread. With the fluid, the outer turns of the winding are wetted to fix the loose end of the thread. A disadvantage is considered here that the fluid soaks through adjacent layers of the thread and thus the physical properties of the thread are impaired. Furthermore, it has been shown that due to the wetting of the turns only relatively short-term fixation effects can be brought about. The reason for this is that, with longer storage times, volatilization of the fluid and impairment of the fixing effect occur. DE 10 2012 018 491 A1 suggests against this background, to secure the loose end of the thread to the coil winding over a foil tape. The foil tape is wrapped together with the thread in the last turns of the coil. This is to prevent slippage of the film strip even after overwinding of the end of the thread. To fix the end of the thread then acting between superposed foil layers of the film strip adhesive force should be used.

Also DE 10 2008 062 161 B3 is devoted to the problem that a loose end of the thread of a finished wound spool is accelerated radially outward even while in the alternating position rotating coil, which is basically undesirable. In the worst case, the loose end of the thread of the full bobbin, which is in the change position, can be caught by an empty bobbin in the winding position or any catching device, thus disturbing the beginning of the winding process of the next bobbin, which is in the winding position. DE 10 2008 062 161 B3 suggests the use of a separating device which provides a partition between the coils which are arranged in the region between the winding position and the changing position. The partition wall of the separation device is intended to block the passage of the loose end of the thread from the spool in the area of the change position to the spool in the area of the winding position.

EP 1 627 840 A1 is concerned with the securing of the free end of a wound into a coil yarn, in which case the coil is formed as a yarn package, bobbin or cocoon, which are used for creating embroidery by means of embroidery machines or stitching by means of quilting machines. In such yarn packages, the beginning of the yarn extends from the inside of the winding. A yarn package is inserted into a shuttle of the embroidery machine or quilting machine, in which case the outwardly extending beginning of the yarn is pulled through different loops of the shuttle. The free, outboard end of the yarn is usually wrapped ("underwrapped") under a previous turn of yarn and then cut short. EP 1 627 840 A1 In contrast, proposes to secure the free end of the yarn cohesively, in particular by means of gluing or welding in the case of a fusible yarn, to the outer circumferential surface of the yarn package. In such embroidery or quilting machines, the yarn is withdrawn from the yarn package starting with the inside yarn. Thus, the yarn is taken from radially inward to radially outward of the coil with increasing migration of the inner circumferential surface of the yarn package to the outside.

GB 454 555 B suggests, however, to fasten the free end of a thread on the outer surface of a winding by means of a tack nail.

For the guidance of the thread during a winding cycle different designs of a traversing unit are known:
WO 2009/103095 A1 discloses a traversing unit in which the movement of the traversing yarn guide is caused by a linear electric motor. The traversing unit has a stator, in which coils generate an electromagnetic traveling field, with a guide rail. The moving traversing yarn guide of the traversing unit has permanent magnets so that it forms a rotor of the linear motor. The traversing yarn guide is guided over rollers on the guide rail of the stator.

Also WO 2000/24663 A1 discloses a traversing unit in which a traversing thread guide pivoted in the manner of a pointer is driven via a linear electric motor.

EP 0 453 622 A1 discloses a traversing unit in which the traversing yarn guide can be moved back and forth axially via a belt drive.

DE 26 43 421 discloses a winding machine in which in a traversing unit a Kehrgewindewelle is used. The axial position of the Kehrgewindewelle is variable by means of a cylinder over a fixed stroke. The Kehrgewindewelle is driven by a controllable in its speed and reversible in its direction of rotation motor. The Kehrgewindewelle has in addition to the normal laying a stepless groove section into which the traversing thread guide enters by reversing the direction of rotation of the Kehrgewindewelle. A switch in the stepless groove portion allows the traversing yarn guide in conjunction with a renewed reversal of direction to reach the laying channel for the purpose of building the coil on the bobbin. Here, bobbin tubes are used which have a catching area. In an automatic bobbin change, the speed of the reverse thread shaft is first reduced to a value favorable for the formation of a thread reserve, and the thread is wound on the bobbin at the reduced speed. Through the following reversal of direction of rotation of the traversing yarn guide is transferred to the stepless groove section. Subsequently, an axial displacement of the Kehrgewindewelle to the fixed by the cylinder stroke, so that the thread can get into the capture range of the empty tube. After catching the thread in the catching area of the empty tube, a start-of-take-off detector is actuated in order to return the reverse-threaded shaft to the starting position by actuating the cylinder.

JP S62-105871 A discloses a spool on which a portion of a ribbon-shaped package upstream of one end of the package is wound in multiple turns with a small lateral offset. The end is then pulled over a drive rod under the lowermost turn of the end portion upstream of the Spulguts so that the end of the bottom turn undercuts. A fuse of the end thus takes place in that the end of the Spulguts between the lateral surface of the coil and the lowermost turn is caught in the radial direction.

OBJECT OF THE INVENTION

The invention has for its object to provide a coil with a winding of a band-shaped Spulguts with an alternative or improved backup of the end of the Spulguts. Furthermore, the object of the invention is to propose a winding machine or a method for winding a coil, by means of which or correspondingly changed or improved coils can be produced. Finally, the invention is the task based to propose a software product with control logic for the implementation of a correspondingly improved method and / or for a control unit of a winder.

SOLUTION

The object of the invention is achieved with the features of the independent claims. Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

• eine Spule ohne oder mit Spulenhülse,
• eine Spule beliebiger Länge und/oder beliebigen Innen- und/oder Außendurchmessers,
• eine Spule mit beliebiger Geometrie der äußeren Mantelfläche, insbesondere zylindrischer Mantelfläche oder kegeliger Mantelfläche,
• eine Spule mit beliebiger Spulenform gemäß DIN-ISO 5238 und/oder
• eine Spule mit beliebigem Wicklungsmuster.

According to the invention, the coil has a winding (also referred to as a "winding package") of a strip-shaped product to be spooled. In this case, the invention comprises a coil of any type, in particular

• a coil without or with bobbin tube,
• a coil of any length and / or any inner and / or outer diameter,
• a coil with any geometry of the outer lateral surface, in particular cylindrical lateral surface or conical lateral surface,
• a coil with any coil shape according to DIN-ISO 5238 and / or
• a coil with any winding pattern.

To cite just a few non-limiting examples, the coil may be a cylindrical cheese, sun coil, oblique face cylindrical coil, silent coil, tapered cheese, straight face tapered cone, tapered symmetric cheese, tapered cheese, disk coil, foot spool, sewing thread spool, head spool or roving be trained (see in this regard, "Manual of Spultechnik", 1st edition, Georg Sahm GmbH & Co. KG Maschinenfabrik, PO Box 1740, D-37257 Eschwege).

• mittels eines Fluids gemäß DE 10 2012 018 491 A1 auf stoffschlüssige Weise,
• mittels eines adhäsiven Mittels oder mittels Verschweißen gemäß EP 1 627 840 A1 und
• mittels eines Reißnagels gemäß GB 454 555 B oder eines Folienbandes

aufwändig sind, da ein zusätzliches Verbrauchsmittel, nämlich das Fluid, das Folienband, das adhäsive Mittel oder der Reißnagel, dem Spulprozess zugeführt werden muss. Des Weiteren erfolgt für derartige Sicherungsmittel eine mechanische Beeinträchtigung und Kontamination des Endes des Spulguts und benachbarter Lagen der Wicklung der Spule. Schließlich erfordern diese Sicherungsmaßnahmen bei der Abnahme des Spulguts beim Verbraucher die Beseitigung und Entsorgung des Sicherungsmittels.According to the invention it has been recognized that the fastenings of the end of the Spulguts according to the prior art

• by means of a fluid according to DE 10 2012 018 491 A1 in a cohesive manner,
• by means of an adhesive agent or by welding according to EP 1 627 840 A1 and
• by means of a tack nail according to GB 454 555 B or a foil tape

consuming, since an additional consumable, namely the fluid, the film strip, the adhesive agent or tack, the winding process must be supplied. Furthermore, for such securing means, a mechanical impairment and contamination of the end of the Spulguts and adjacent layers of the winding of the coil. Finally, these safety measures when removing the Spulguts the consumer requires the disposal and disposal of the securing means.

According to the invention a backup of the end of the Spulguts is surprisingly proposed, which can completely dispense with an additional securing means (which of course is not excluded that in addition to the following inventive measures cumulatively an additional securing means can be used):
According to the invention one end of the Spulguts frictionally and / or positively secured to a part of the Spulguts upstream of the end. Thus, the backup takes place directly between the end of the Spulguts one hand, and the part of the Spulguts upstream of the end of the Spulguts. This is done without additional security elements. Rather, this is done by a between the end of the Spulguts and the upstream portion of the Spulguts induced frictional force and / or a form fit in the region of an undercut formed by the Spulgut between them. The frictional force and / or the form fit in this case preferably produce a securing force, which removal forces of the end of the Spulguts in particular radially outward, ie for a movement of the end of the Spulguts away from the winding, is directed opposite. According to the invention, there is no underwinding or undercutting or no knotting of the end of the material to be spooled. At the end of the Spulguts is preferably the end of the Spulguts the coil, which has been fed to the coil last and which is first removed from the coil at the consumer.

According to the invention, the winding material forms a wound ring on an outer circumferential surface of a winding of the coil. This ring may be formed with a single layer (formed by one turn of the product to be wiped), but preferably at least two or more layers of the material to be winder. Such a ring forms an axial end face, on which the end of the Spulguts frictionally and / or positively supported. Preferably, the end of the Spulguts by means of the axial end side in the axial direction is elastically compressed or clamped. Here is also possible that such elastic compression or pinching occurs with a deflection of the cross section of the band-shaped Spulguts. Thus, the elastic compression or the pressing on the axial end side can be caused by the elastic resistance of the band-shaped Spulguts against such a deflection. In order to enable such a clamping, compressing or clamping on the axial end face of the ring, the band-shaped winding material can additionally support on another side. This additional support can, for example, on a lateral boundary plate of the coil, an end plate u. Ä.

For an alternative solution of the invention, the Spulgut forms on an outer surface of a winding two wound rings having facing axial end faces. Between these, the end of the Spulguts frictionally and / or positively supported. Preferably, the end of the Spulguts is caught between these axial end faces, clamped, elastically braced, elastically compressed and / or elastically bent in cross section.

For a further embodiment of the invention, the axial end faces of the rings have an axial spacing which is smaller (at least in a partial area) than the width of the band-shaped material to be spooled. This can only be the case over a partial circumference of the coil. Preferably, however, this applies over the entire circumference of the coil. If for such a dimensioning of the distance of the axial end faces of the rings, the winding material introduced into a space between the axial end faces (in particular "retracted"), a reduction in the width of the band-shaped Spulguts is required, which in particular in an elastic deformation and / or a deflection of the Cross-section of the Spulguts can exist.

In principle, any configurations of the rings are possible. According to a proposal of the invention, the ring or the rings have at least two layers (formed by a turn of the material to be wiped) of the strip-like material to be wiped. Thus, in particular, the axial end faces of the rings may be formed annularly, wherein the thickness of the annulus corresponds to the product of the thickness of the band-shaped Spulguts and the number of superimposed layers of the ring.

Also for the design of the axial extent of the at least one ring there are many possibilities. So it is quite possible that the ring with a certain one-sided or reciprocating axial feed or a "ring laying width" is wound. in this connection In any case, however, the ring laying width corresponds to a fraction (in particular less than 1 / 10th, 1 / 20th, 1 / 50th or 1 / 100th) of the laying width of the winding of the coil.

For a particular proposal of the invention, the ring (or the rings) has an axial extent which is smaller than twice the width of the band-shaped Spulguts. This means that the Spulgut has not been laid in any case with adjacent turns, but in the region of the ring rather the Spulgut is always wound directly on a previously wound turn. For a theoretical minimum overlap, the axial extent of the ring (in a boundary consideration) is twice the width of the belt-shaped package. In the other extreme case, which may well be a preferred embodiment, the turns are wound on each other with complete overlap, so that the axial extent of the ring corresponds exactly to the width of the band-shaped Spulguts. Between these two extremes, the ring may have any axial extent.

If adjacent layers of such a ring are wound on one another only with a partial overlap, the ring (or the rings) can have two partial rings, which are arranged in the axial direction with an offset V to one another. In this case, the two partial rings can each be formed with a single layer or even with a plurality of layers arranged one above the other without or with offset. As a result of the offset V used for securing the end of the Spulguts axial end face of the ring is stepped. With the stepped axial end face, it is possible to equip the space defined by the axial end face for inserting the end of the Spulguts (preferably the gap between the two rings) with a kind of undercut, in which (with or without axial strain) the end of the Spulguts can be inserted, whereby a positive locking is guaranteed. In order to remove the end of the Spulguts for such inserted into the undercut condition of the spool, the end of the Spulguts must be moved past the undercut, for which purpose must be targeted appropriately aligned or a deformation of the Spulguts must be brought about, which ultimately a improved safety effect results.

For the choice of the size of the offset V, there are many possibilities within the scope of the invention. Basically, with an increase in the offset V, the extent of the undercut can be increased, so that hereby the securing effect can be increased. On the other hand, an increase in the extent of the offset V but the disadvantage have that the insertion of the end of the Spulguts is difficult. This can u. U. represent a conflict of interest. It has proven to be advantageous for an embodiment of the invention if the offset V is in the range of 0.1 times to 0.4 times (preferably in the range of 0.2 times to 0.3 times) the width B of the strip-shaped product to be spooled.

The rings and partial rings can have the same or different thicknesses. Preferably, the inner partial rings of the two rings, which are wound directly on the winding, have different thicknesses. Although in this case both rings form undercuts in the transition from the inner partial rings to the outer partial rings, as a result of the different thicknesses u. U. insertion of the end of the Spulguts be simplified in the space between the two rings.

Also for the distance of the axial end faces of the rings, there are many possibilities. For an embodiment of the invention, the axial end faces of the rings (at least in a partial region, which may be formed for example by a partial ring) have a distance from each other, which corresponds to the product of the width B of the strip-shaped Spulguts by a factor. Here, the factor is in the range of 0.50 to 0.98, preferably in the range of 0.60 to 0.95 or 0.70 to 0.90.

In a method for solving the problem underlying the invention, first of all, a winding of a strip-shaped package material is wound. This is followed by the winding of two rings from the winding material on the winding. Here, the winding of the two rings takes place with a distance of the axial end faces of the rings, which is smaller than the width B of the band-shaped Spulguts. Finally, in this method, the Spulgut is introduced into a gap formed between the axial end faces, whereby a positive and / or frictional locking the end of the Spulguts is guaranteed.

In a further embodiment of the method, at least one ring is wound with two partial rings, wherein the partial rings are wound with an axial offset V, by means of which the above-explained undercuts can be provided.

For the winding of the two rings with a spacing and / or the winding of a ring with two partial rings with an axial offset V, a traversing unit is preferably correspondingly driven in the method according to the invention, ie the traversing unit for the Winding the two spaced-apart rings initially moved into a setting range for the first ring and then traversed by bridging the distance of the rings in the adjustment range for the second ring. Accordingly, for the winding of partial rings with the axial offset, a control of the traversing unit can take place such that initially the first partial ring is wound in a first setting position of the traversing unit, while the traversing unit is then moved by the offset V with subsequent winding of the second partial ring.

It is possible that only a cutting of the Spulguts takes place and then the free end of the Spulguts is introduced into the intermediate space formed between the axial end faces. In a preferred embodiment of the method according to the invention, however, first the winding material is introduced into the intermediate space between the rings in a state which has not yet been severed, thus ensuring a positive and / or frictional locking of the end of the product to be spooled. Only then this is followed by the cutting of the Spulguts.

In principle, the use of the method according to the invention and thus the production of the coils according to the invention can take place on any desired winding machine. Thus, the method can be used on a winding head of a winder with only one winding spindle. For a method according to the invention, however, a winding head of a winding machine is used, in which two winding spindles are held on a turret, which can then be used alternately for winding a bobbin. In such a method, the winding and the rings are first wound in a winding position of a winding spindle held on the revolver. Following this, this winding spindle is moved by rotation of the revolver from the winding position, in particular in the direction of a change position or in the change position. Following this, then, apart from the winding position of the winding spindle, the introduction of the end of the winding material takes place in the intermediate space formed between the axial end faces of the rings and / or the cutting of the winding material.

• während einer Verdrehung eines die Spulspindel haltenden Revolvers und/oder
• während des Bewegens eines Spulgut-Changierführers zum Fangen des Spulguts im Bereich einer anderen Spulspindel und/oder
• während des Herstellens einer Fixierwicklung und/oder Reservewicklung an der anderen Spulspindel

der Fall sein. Mittels einer derartigen Halte- und/oder Führungsvorrichtung kann beispielsweise das Ende des Spulguts (ungeachtet einer etwaigen Verdrehung des Revolvers und/oder ungeachtet einer etwaigen Bewegung des Spulgut-Changierführers) an einem Austritt aus dem Zwischenraum der Ringe gehindert werden. Hierbei kann es vorteilhaft sein, wenn sich das Spulgut an einem Halteelement oder einer Aufnahme der Halte- und/oder Führungsvorrichtung so abstützt, dass sich der Kontaktort des Spulguts mit dem Halteelement oder der Aufnahme trotz etwaiger Verdrehung des Revolvers und/oder Bewegung des Spulgut-Changierführers nicht verändert.According to a particular proposal of the invention, the Spulgut is additionally supported on a holding and / or guiding device after the introduction of the Spulguts in the space formed between the axial end faces between the rings. This can be special

• during a rotation of the winding spindle holding the revolver and / or
• while moving a Spulgut-Changierführers for catching the Spulguts in the range of another winding spindle and / or
• during the production of a fixing winding and / or reserve winding on the other winding spindle

be the case. By means of such a holding and / or guiding device, for example, the end of the Spulguts (regardless of a possible rotation of the turret and / or regardless of any movement of the Spulgut traverse) are prevented from exiting the gap of the rings. It may be advantageous if the Spulgut on a holding element or a receptacle of the holding and / or guiding device is supported so that the contact point of the Spulguts with the holding element or the recording despite any rotation of the turret and / or movement of the Spulgut- Changierführers not changed.

There are many different possibilities for the design of the holding and / or guiding device. For example, the holding and / or guiding device may be designed as a holding bar and / or holding hooks. It is also possible that in the holding and / or guiding device, a separating device for severing the Spulguts is integrated, which may be operated separately for severing or can be done with an increase in the tension in Spulgut an automatic severing.

Another solution of the problem underlying the invention is proposed in the form of a winding machine, which may in principle be designed according to the known from the prior art designs. For example, this winder may have at least one winding spindle, a revolver, a pressure roller and / or a traversing unit. According to the invention, a control unit is present in the winding machine. The control unit has a control logic, by means of which a method of the previously described type can be performed.

• der Changiereinheit und des Antriebs der Spulspindel zur Herstellung der Ringe, der Teilringe, des Versatzes und zum Einlegens des Spulguts in den Zwischenraum zwischen den axialen Stirnseiten der Ringe und/oder
• des Revolvers.

It is possible that a conventional winder is converted by reprogramming the control unit, in particular by means of modified control

• the traversing unit and the drive of the winding spindle for the production of the rings, the partial rings, the offset and for inserting the Spulguts in the space between the axial end faces of the rings and / or
• of the revolver.

• in einer Bauform vertrieben wird, in der keine erfindungsgemäße Sicherung des Endes des Spulguts erfolgt, sowie
• in einer abgewandelten Bauform vertrieben wird, in welcher die erfindungsgemäße Sicherung des Endes des Spulguts möglich ist.

It is also possible that a winder with identical structural design or only with minor structural changes

• is sold in a design in which no fuse according to the invention of the end of the Spulguts takes place, and
• is sold in a modified design, in which the fuse according to the invention of the end of Spulguts is possible.

To make this possible, a software product is proposed for a further solution of the problem underlying the invention, which is equipped with a control logic, which is designed to carry out a method of the type described above and / or intended for a control unit of a winder. With such a software product, a winder can then be put into the position for carrying out the method according to the invention and / or a retrofitting or "reprogramming" of an existing winder can take place.

Advantageous developments of the invention will become apparent from the claims, the description and the drawings. The advantages of features and of combinations of several features mentioned in the description are merely exemplary and can take effect alternatively or cumulatively, without the advantages having to be achieved by embodiments according to the invention. Without thereby altering the subject matter of the appended claims, as regards the disclosure of the original application documents and the patent, further features can be found in the drawings, in particular the illustrated geometries and the relative dimensions of several components and their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different claims is also possible deviating from the chosen relationships of the claims and is hereby stimulated. This also applies to those features which are shown in separate drawings or are mentioned in their description. These features can also be combined with features of different claims. Likewise, in the claims listed features for further embodiments of the invention can be omitted.

The features mentioned in the patent claims and the description are to be understood in terms of their number that exactly this number or a greater number than the said number is present, without requiring an explicit use of the adverb "at least". So if, for example, a partial ring is mentioned, this is to be understood that exactly one partial ring, two partial rings or more partial rings are present. These features may be supplemented by other features or be the only characteristics that make up the product in question.

The reference numerals contained in the claims do not limit the scope of the objects protected by the claims. They are for the sole purpose of making the claims easier to understand.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1

zeigt stark schematisiert Bestandteile einer Spulmaschine mit einer Spule in einer Draufsicht.

Fig. 2

zeigt ein Detail II einer Spule gemäß Fig. 1.

Fig. 3

zeigt schematisiert eine Spulmaschine mit Spule am Ende einer Spulreise zum Wickeln der Spule.

Fig. 4

zeigt die Spulmaschine gemäß Fig. 3 in einer räumlichen Ansicht.

Fig. 5

zeigt schematisiert ein Detail einer Spule mit Wicklung und Ringen sowie hieran gesichertem Ende des Spulguts.

Fig. 6

zeigt schematisiert ein Detail einer Spule mit Wicklung und Ringen sowie hieran gesichertem Ende des Spulguts.

Fig. 7

zeigt ein Ablaufdiagramm eines Verfahrens zum Wickeln einer Spule.

Fig. 8

zeigt schematisch die Steuerung einer Spulmaschine durch eine Steuereinheit.

In the following the invention will be further explained and described with reference to preferred embodiments shown in the figures.

Fig. 1

shows highly schematic components of a winder with a coil in a plan view.

Fig. 2

shows a detail II of a coil according to Fig. 1 ,

Fig. 3

schematically shows a winding machine with coil at the end of a winding cycle for winding the coil.

Fig. 4

shows the winder according to Fig. 3 in a spatial view.

Fig. 5

schematically shows a detail of a coil with winding and rings and this secured end of the Spulguts.

Fig. 6

schematically shows a detail of a coil with winding and rings and this secured end of the Spulguts.

Fig. 7

shows a flowchart of a method for winding a coil.

Fig. 8

schematically shows the control of a winder by a control unit.

DESCRIPTION OF THE FIGURES

Fig. 1 shows a highly schematized a winder 1. This may also be exclusively to a winding head of a winding device, with the winding device can be wound in parallel to a plurality of winding heads a plurality of coils. For winding a coil 2 is a discontinuous or preferably continuous provision of a Spulguts 3, which is a band-shaped Spulgut. The Spulgut 3 is fed via a device for influencing or keeping constant the tension of the Spulguts 3 (in particular a deflection roller 5 with associated dancer arm 6) and a traversing unit 7 of a coil 2. The winder 1 has here a winding spindle 8, on which a bobbin tube 9 is pushed, on which a winding 10 of the Spulguts 3 is wound. It is also possible that the coil is wound without the use of a winding tube 9. The coil 2 is formed here with the coil sleeve 9 and the winding 10. A drive of the coil 2 can be effected via a drive of the winding spindle 8. It is also possible that the drive of the coil 2 via a drive roller, which is pressed against a lateral surface 11 of the winding and frictionally the winding 10 and thus the coil 2 is set in rotation.

The traversing unit 7 has a winding material traversing guide 12, which is moved by controlled drive of the traversing unit 7 parallel to the longitudinal axis of the winding spindle 8. With the Spulgut-Changierführer 12, the Spulgut 3 is moved, which can be specified via the control of the Spulgut-Changierführers 12 and thereby brought about axial position of the Spulgut-traversing 12, in which axial region of the winding spindle 8 and the winding 10, the Spulgut 3 the lateral surface 11 of the winding 10 is applied.

Fig. 1 shows the winding machine 1 with the coil 2 at the end of a winding cycle. This means that the winding 10 is completely wound, which has reached its intended diameter and a predetermined length of the Spulguts 3 is wound to the winding 10. In addition, on the lateral surface 11 of the winding 10, the winding of rings 13, 14 of the Spulguts 3 takes place at a distance 15. In the intermediate space 16 between the rings 13, 14 then one end 17 of the Spulguts 3 is inserted. The end 17 of the Spulguts 3 is in the intermediate space 16 exclusively by interaction with the rings 13, 14, so the end 17 upstream portions of the Spulguts 3, secured. As in the in Fig. 1 illustrated state the endless Spulgut 3 is not yet severed, is in the gap 16 between the rings 13, 14 inserted end 17 of the Spulguts 3 is not yet free and not yet separated from the further tapered Spulgut 3.

Fig. 2 shows a detail II of the coil 2. It can be seen here in particular that the distance 15 of the rings 13, 14 is slightly smaller than the width B 18 of the Spulguts third

• in eine Spulstellung überführt werden, in welcher das Wickeln einer Spule erfolgt, sowie
• in eine Wechselstellung gebracht werden, in welcher eine fertig gewickelte Spule von der Spulspindel entnommen werden kann, ggf. eine neue Spulenhülse auf die Spulspindel aufgesteckt werden kann u. ä.

In Fig. 3 and 4 a winder 1 is shown, in which two winding spindles 8a, 8b are held on a revolver 19. The revolver 19 is rotatable about a central axis of rotation, which is oriented parallel to the longitudinal and rotational axis of the winding spindles 8a, 8b. The winding spindles 8a, 8b can by turning the turret 19 respectively

• be converted into a winding position, in which the winding of a coil, as well as
• be placed in a change position in which a finished wound coil can be removed from the winding spindle, if necessary, a new bobbin tube can be plugged onto the winding spindle u. ä.

It is possible that in the change position or during the rotational movement between the winding position and the change position, the winding material 3 by means of a catching device 23 of the winding spindle 8a, 8b or the empty bobbin tube 9a, 9b is caught. For this purpose, the Spulgut-Changierführer 12 can be brought into a traversing position, in which the Spulgut 3 targeted the catcher 23 is supplied. It is possible that this position is outside the usual laying width, ie axially in front of or behind the winding 10. In this case, it must be avoided that this movement of the winding material traversing yarn guide 12 displaces the winding material 3 not only for catching the winding material on the empty winding spindle, but also for an axial offset and / or a changed alignment of the winding material 3 in the region of the end 17 between the ends Rings 13, 14 of the finished wound coil 2 leads. This avoidance is ensured by the fact that the Spulgut 3 is guided on the way from the finished wound spool 2 to the empty winding spindle 8b by a holding and / or guiding device 20a, 20b. For the illustrated embodiment, two holding and / or guide devices 20a, 20b are provided, which are each formed as guide rods 21a, 21b. The guide rods 21a, 21b have in the axial region, in which the loose end 17 of the Spulguts 3 in the gap 16 between the rings 13, 14 of the finished wound coil 2, via a receptacle 22a, 22b. When recording 22a, 22b may, for example, to a bracket, a projection, a recess, a retaining bar u. act. As in particular in Fig. 4 can be seen, the receptacle 22a, 22b may also be formed as an L-shaped bracket, wherein a leg of the L from the guide rod 21a, 21b extends radially outwardly, while the other leg of the L parallel to the longitudinal axis of the guide rod 21a, 21b extends (namely, extends away from the catcher 23 for catching the Spulguts 3 on an empty winding spindle away). The winding of the coil 2 on the winding spindle 8a is in one of Fig. 3 deviating position takes place, for example, in a 12 o'clock position of the winding spindle 8a on the revolver 19 (winding position). In this winding position, the holding and / or guiding device 20a, 20b does not interact with the winding material 3, so that the winding material 3 passes directly from the winding material traversing guide 12 to the circumferential surface 11 of the winding 10. Fig. 3 and 4 show the winder 1 during rotation of the turret 19 in a clockwise direction from the winding position to the change position. This rotation causes the Spulgut 3 with the holding and / or guiding device 20a, 20b interacts, namely, applies to the lateral surface of the guide rod 21a, 21b, wherein the circumferential angle of the system of Spulguts 3 to the lateral surface of the guide rod 21a , 21b increases with increasing rotation of the revolver 19. If, at the end of the rotation of the turret 19, the winding spindle 8b is in the winding position, while the winding spindle 8a with the bobbin 2 arranged thereon is in the change position, the winding material 3 must be brought into interaction with a catching device 23b, which in the embodiment shown in FIG Axialbereich of the winding spindle 8 b or the bobbin tube 9 b is arranged, which is arranged on the side facing away from the turret 19 in front of the laying width and in front of the winding 10. Thus, the Spulgut traverse guide 12 is moved in an axial area outside the laying width. This movement of the Spulgut-traversing yarn guide 12 causes the angle of the Spulguts between the Spulgut-Changierführers 12 and the receptacle 22b of the holding and / or guiding device 20b changed while the position and orientation of the Spulguts 3 between the receptacle 22b and the Spool 2 does not change. In this way it can be ensured that (in spite of the movement of the package traverse guide 12), the loose end 17 of the Spulguts 3 is not "pulled out" from the gap 16 between the rings 13, 14. If, as explained, the receptacle 22 is formed with an L-shaped bracket, the axial movement of the winding material traversing yarn guide 12 causes the winding material 3 to be deflected in the region of the radially oriented leg of the L. If the winding material 3 is then caught by the catching device 23b in the area of the empty winding spindle 8b, the winding cycle can begin on this winding spindle 8b.

A severing of the Spulguts 3 is carried out by a separate separator. It is also possible that a cutting of the Spulguts 3 in the region of the holding and / or guiding device 20 takes place, for which purpose a separate separating device may be present. It is also possible that by means of an increase in the tension in the winding material 3 a severing in the region of the holding and / or guiding device 20, possibly at a corresponding cutting edge thereof, is brought about.

After severing the Spulguts 3 a large part of the separated Spulguts 3 is wound to the winding 10 of the fully finished coil 2 wound. A subsequent to the winding 10 portion of the Spulguts 3 forms the ring 13, and another subsequent portion of the Spulguts 3 forms the ring 14. This is followed by another part then the end 17 of the Spulguts 3, which in the gap 16 between the rings 13, 14 is retracted and secured here and has a remaining residual portion which extends loosely from the gap 16 between the rings 13, 14 out.

Fig. 5 shows in detail the securing of the end 17 of the Spulguts 3 to the coil 2:
The Spulgut 3 is wound to the rings 13, 14, which have a distance 15. The ring 13 here has two partial rings 24, 25, which are wound on each other. The partial ring 24 has a thickness D ₂₄ , while the partial ring 25 has a thickness D ₂₅ . Preferably, the thickness D _{24 is} greater than the thickness D _25th The partial ring 25 is offset with an offset V 26 in the direction of the other ring 14 relative to the partial ring 24. The partial rings 24, 25 are produced with directly adjoining, successively wound portions of the Spulguts 3. In the partial rings 24, 25 several layers, in particular more than two, five, ten, 20 or even more than 50 layers of the Spulguts 3 are wound one above the other. For the embodiment according to Fig. 5 the ring 14 is not formed with different, mutually offset partial rings. Rather, here all layers of the ring 14 are wound directly without offset each other. Preferably, the thickness D _{14 of} the ring 14 is slightly smaller than the thickness D _{24 of} the partial ring 24 of the ring 13. The space 16 between the rings 13, 14 is axially limited by an axial end face 27 of the ring 14 and an axial end face 28 of the ring 13. The axial end face 27 of the ring 14 is formed in the form of a circular ring surface, which is radially inwardly adjacent to the lateral surface 11 of the winding 10. In contrast, the axial end face 28 is formed as a result of the offset 26 with a peripheral step 29. In the area of step 29, the end face 28 forms an undercut 54. The step 29 separates in the axial end face 28 bounded by the partial ring 25 first partial annular surface of a radially inwardly adjoining thereto, formed by the second partial ring 24 partial annular surface, to which radially inwardly the lateral surface 11 of the winding 10 is connected. The rings 13, 14, the partial rings 24, 25, the axial end faces 27, 28 and the said annular surfaces or partial annular surfaces extend in the circumferential direction about the longitudinal axis of the coil 2.

In the in Fig. 5 illustrated partial cross section has the intermediate space 16 in a first approximation U-shaped, radially outwardly open cross section, wherein the base leg of the U is formed by the lateral surface 11 of the winding 10, while the side legs of the U of the end faces 28, 27 of the rings 13, 14 are formed. As a result of the formation of the ring 13 with the two partial rings 24, 25 here the side legs of the U is stepped. In addition, this side leg is longer than the rectilinear side legs of U. formed by the face 27 of the ring 14.

In the intermediate space 16, the end 17 of the Spulguts 3 is inserted, inserted or retracted. Since the distance 15 of the end face 27 of the ring 14 from the annular surface formed by the partial ring 24 of the axial end face 28 of the ring 13 is smaller than the width B 18 of the Spulguts 3, the Spulgut 3 is supported with its end faces on the end faces 27, 28th of the rings 13, 14 from. The end 17 of the Spulguts 3 is elastically clamped between the end faces 27, 28, which results in an axial contact force between the end 17 of the Spulguts 3 and the end faces 27, 28. The axial contact force leads to a frictional force between the end 17 of the Spulguts 3 and the end faces 27, 28. This frictional force forms a resistance to an outlet of the end 17 of the Spulguts 3 from the gap 16.

In addition, the step 29 of the end face 28 is a positive obstacle against an exit of the end 17 of the Spulguts 3 from the gap 16. Thus, the end 17 of the Spulguts 3 for this embodiment, a form-fitting and frictional engagement with the rings 13, 14 on the coil. 2 secured.

Fig. 6 shows an alternative embodiment, in which not only the ring 13 is formed with partial rings 24, 25, but also the ring 14 is formed with partial rings 30, 31. Here too, the outer partial ring 31 is arranged with an offset V 32 in the direction of the other ring 13 with respect to the inner partial ring 30, so that now also the end face 27 has a peripheral step 33. For this embodiment, the end 17 of the Spulguts 3 at both end faces 27, 28 by the axial contact pressure frictionally and as a result of the steps 29, 33 positively secured against an exit from the gap 16.

• Sind die Ringe 13, 14 ohne Teilringe gebildet, besitzen diese vorzugsweise eine Breite, welche der Breite B 18 des Spulguts 3 entspricht.
• Sind die Ringe 13, 14 mit Teilringen 24, 25 bzw. Teilringen 30, 31 gebildet, verfügen die Teilringe jeweils über die Breite B 18 des Spulguts 3.
• Der Abstand 15 der Ringe 13, 14 ist zumindest in einem Teilbereich, vorzugsweise im radial innenliegenden Teilbereich für den Fall des Einsatzes von Teilringen 24, 30, um einen Faktor x kleiner als die Breite B 18 des Spulguts 3. Vorzugsweise beträgt der Faktor x 0,8 ± 10 %.
• Die Dicken D₁₃, D₂₄, D₂₅, D₃₀, D₃₁ der Ringe bzw. Teilringe sind mindestens so groß wie das Doppelte der Dicke des Spulguts 3, so dass in den Ringen bzw. Teilringen mindestens zwei Lagen des Spulguts 3 übereinander gewickelt sind.
• Vorzugsweise beträgt die Dicke D₁₃, D₂₄, D₂₅, D₃₀ und D₃₁ mehr als 0,5 mm, mehr als 1,0 mm oder sogar mehr als 2 mm.
• Insbesondere für den Fall, dass das Spulgut 3 eine Breite B 18 von weniger als 3 mm aufweist, findet als Versatz V 26, 32 zwischen Teilringen 24, 25 bzw. 30, 31 ein Versatz V Einsatz, welcher einem Viertel (± 10 %) der Breite B 18 des Spulguts 3 entspricht.
• Vorzugsweise findet die Ausführungsform gemäß Fig. 5 Einsatz für ein Spulgut 3 mit einer Breite B, die kleiner als 3 mm ist.
• Hingegen findet für ein Spulgut 3 mit einer Breite B von mindestens 3 mm vorzugsweise die Ausführungsform gemäß Fig. 6 Einsatz. Hierbei gilt aber für die Bemessung des Versatzes V 26, 32 insbesondere ebenfalls, dass dieser ca. ein Viertel (± 10 %) der Breite B 18 des Spulguts 3 beträgt.
• Für das Ausführungsbeispiel gemäß Fig. 5, insbesondere für ein Spulgut 3 mit einer Breite B von weniger als 3 mmm, ist die Dicke D₂₄ des Teilrings 24 größer als die Dicke D₁₃ des Rings 13. Hingegen ist für die Ausführungsform gemäß Fig. 6, insbesondere für ein Spulgut 3 mit einer Breite B von mindestens 3 mm, die Dicke D₂₄ des Teilrings 24 größer als die Dicke D₃₀ des Teilrings 30.

In the following, examples of the dimensioning of the rings 13, 14 are mentioned, which are possible within the scope of the invention, but by means of which no restriction of the invention is to be made:

• If the rings 13, 14 are formed without partial rings, they preferably have a width which corresponds to the width B 18 of the Spulguts 3.
• If the rings 13, 14 are formed with partial rings 24, 25 or partial rings 30, 31, the partial rings each have the width B 18 of the material to be wound 3.
• The distance 15 of the rings 13, 14 is at least in a partial region, preferably in the radially inner portion for the case of the use of partial rings 24, 30, by a factor x smaller than the width B 18 of the Spulguts 3. Preferably, the factor x 0 , 8 ± 10%.
• The thicknesses D _13, D _24, D _25, D _30, D ₃₁ of the rings or partial rings are at least as large as twice the thickness of the winding material 3, so that wound in the rings or partial rings at least two layers of the winding material 3 above the other are.
• Preferably, the thickness D ₁₃ , D ₂₄ , D ₂₅ , D ₃₀ and D _{31 is} more than 0.5 mm, more than 1.0 mm or even more than 2 mm.
• In particular, in the case that the Spulgut 3 has a width B 18 of less than 3 mm, as offset V 26, 32 between partial rings 24, 25 and 30, 31 is an offset V use, which is a quarter (± 10%) the width B 18 of the Spulguts 3 corresponds.
• Preferably, the embodiment is according to Fig. 5 Insert for a Spulgut 3 with a width B, which is smaller than 3 mm.
• On the other hand, for a winding material 3 with a width B of at least 3 mm, preferably the embodiment according to FIG Fig. 6 Commitment. However, this applies to the design of the Offset V 26, 32 in particular also that this is about a quarter (± 10%) of the width B 18 of the Spulguts 3.
• For the embodiment according to Fig. 5 , Especially for a Spulgut 3 with a width B of less than 3 mmm, the thickness D _{24 of} the partial ring 24 is greater than the thickness D _{13 of} the ring 13. However, in the embodiment according to Fig. 6 , in particular for a winding material 3 having a width B of at least 3 mm, the thickness D _{24 of} the partial ring 24 is greater than the thickness D _{30 of} the partial ring 30.

For the insertion of the end 17 of the Spulguts 3 in the limited by the end faces 27, 28 intermediate space 16 is in particular a bending elasticity of the cross section of the Spulguts 3 to a bending axis, which is oriented in the longitudinal direction of the Spulguts exploited. On the one hand, this can be utilized by generating a kind of folding or bending of the cross section of the material to be wound 3 about the said bending axis, whereby the insertion of the end 17 into the narrowed space 16 is made possible in the first place. The elastic return of the Spulguts 3, so the "rebounding" of the Spulguts with a reduction in the deflection or folding of the Spulguts 3 in the in Fig. 5 and 6 illustrated cross-section leads to the frontal contact pressure of the end 17 to the end faces 27, 28 of the rings 13, 14. The step 29 and possibly the further stage 32 forms / form an undercut 54, 55 of the gap 16, which the positive locking of the end 17 of the Spulguts 3 guaranteed in the intermediate space 16. Here, as shown, the positive locking done with a certain radial play. It is also possible that in the inserted into the gap 16 state, the end 17 of the Spulguts 3 without play or even under elastic bias on the stage 29, 33 is applied.

Based on Fig. 7 An example of a possible method for winding a coil 3 will now be explained.
In a method step 34, a winding spindle 8a is converted into a winding position by turning the revolver 19. In a subsequent method step 35, if necessary by moving the traversing unit 7, the winding material 3 is brought into interaction with a catching device 23a of the winding spindle 8a or a bobbin tube 9a arranged thereon, thus fixing the winding material 3 to the winding spindle 8a or the bobbin tube 9a. In a process step 36 is carried out by performing a traverse of the winding material traverse guide 12 of the traversing unit 7 within the laying width, a winding of the winding 10. Here, depending on the controller on the one hand the rotational movement of the winding 10 (by suitable drive speed of the winding spindle 8a or a driven pressure roller) and on the other hand, the control of the movement of the winding material traversing yarn 12, a desired winding pattern are brought about. If the winding 10 is completely created, winding of the ring 13 takes place in a method step 37, which is preferably the ring which is arranged adjacent to an end face of the coil 7, in the region in which the winding 10 ends. For this purpose, in the method step 37, the movement of the winding material traversing yarn guide 12 on the traversing unit 7 takes place in an axial position which corresponds to the position of the ring 13. If the ring 13 is to be manufactured with two partial rings 24, 25, after the partial ring 24 has been produced, the winding material traversing guide 12 is moved away from the end face of the coil 2 by the offset V 26. During the winding of the ring 13, the thicknesses D ₁₃ and D ₂₄ , D _{25 are} controlled by the length of the supplied Spulguts or the number of revolutions of the winding spindle 8 and the coil 2. If the ring 13 completely wound, is in a Method step 38 of the winding material traversing guide 12 moves axially away from said end side of the coil 2 so that the distance 15 results. Following this, the ring 14 is then wound in a method step 39, wherein, in the event that two partial rings 30, 31 are to be wound, after completion of the inner partial ring 30, the package traverse guide 12 is moved back again by the offset V 32. After completion of the ring 14, the Spulgut-traversing 12 is then moved centrally between the two rings 13, 14 in a process step 40, which leads in view of the tension of the Spulguts 3 that the Spulgut on the edges of the tops of the two rings 13, 14 applies, the Spulgut 3 bends in cross-section radially inwardly and the Spulgut 3 can enter into the gap 16 between the end faces 27, 28 of the rings 13, 14, where this is spread apart again due to the elasticity of the Spulguts 3. Hereby, the end 17 of the Spulguts 3 via the rings 13, 14 secured to the coil 2. At least now, u. But even at an earlier time, carried out in a step 41, a rotation of the turret 19 in order to transfer the coil 2 from the winding position to the change position and to allow winding on the other winding spindle 8b and a possibly arranged thereon bobbin sleeve 9b , In this case, in a method step 42, the winding material 3 reaches the area of the receptacle 22a of the holding and / or guiding device 20a. In the receptacle 22a of the holding and / or guiding device 20a, the Spulgut 3 and the end 17 is held at an axial position such that the end 17 is not pulled laterally or upwardly from the gap 16 between the rings 13, 14. The further rotation of the turret 19 in a process step 43 with the simultaneous movement of the winding material traverse guide 12 has the consequence that upstream of the receptacle 22 a, the Spulgut 3 in Interaction with the catcher 23b of the winding spindle 8b or bobbin 9b occurs. In a method step 44, the cutting material 3 can then be cut through, for example in the region of the holding and / or guiding device 20, and finally the winding of a further coil on the winding spindle 9b takes place. The process is then repeated accordingly for winding a bobbin on the winding spindle 8b, as previously described for winding the bobbin 2 on the winding spindle 8a, etc.

Due to the offset V, the ring 14 has according to Fig. 5 and have the rings 13, 14 according to Fig. 6 an axial extent which is greater than the width B of the Spulguts 3, namely by the size of the offset V is greater than this.

• der Drehwinkel der mindestens einen Spulspindel 8,
• die Winkelgeschwindigkeit und/oder der Umfangsweg der Spulspindel 8,
• eine Position und/oder eine Geschwindigkeit des Spulgut-Changierführers 12 und/oder
• der Drehwinkel und/oder eine Winkelgeschwindigkeit des Revolvers 19

bekannt, was durch Zuführung entsprechender Messsignale von Sensoren über Signalleitungen 46, 47, 48 bewerkstelligt sein kann. Fig. 8 schematically shows a control unit 45 of a winder 1. In the control unit 45 are

• the angle of rotation of the at least one winding spindle 8,
• the angular velocity and / or the circumferential travel of the winding spindle 8,
• a position and / or a speed of the package traverse guide 12 and / or
• the angle of rotation and / or an angular velocity of the revolver 19

known, which can be accomplished by supplying corresponding measurement signals from sensors via signal lines 46, 47, 48.

• einen Spindelantrieb 49,
• die Changiereinheit 7 und
• einen Revolverantrieb 50

zur Durchführung des zuvor erläuterten Verfahrens an. So erzeugt beispielsweise die Steuereinheit 45 die erforderlichen axialen Stellbewegungen des Spulgut-Changierführers 12, um die Ringe 13, 14 sukzessive herzustellen und anschließend das Ende 17 des Spulguts 3 in den Zwischenraum 16 einzuführen, während gleichzeitig die Rotationsbewegung der Spulspindel 8 durch geeignete Ansteuerung über den Spindelantrieb 49 gesteuert wird. Zu diesem Zweck kommuniziert die Steuereinheit 45 über Steuerleitungen 51, 52, 53 mit dem Spindelantrieb 49, der Changiereinheit 7 und dem Revolverantrieb 50 (wovon auch eine Regelung umfasst sein soll).On this basis, the control unit 45 controls

• a spindle drive 49,
• the traversing unit 7 and
• a turret drive 50

for carrying out the method explained above. Thus, for example, generates the control unit 45, the required axial adjustment movements of the package traverse guide 12 to successively produce the rings 13, 14 and then insert the end 17 of the Spulguts 3 in the gap 16, while the rotational movement of the winding spindle 8 by suitable control over the Spindle drive 49 is controlled. For this purpose, the control unit 45 communicates via control lines 51, 52, 53 with the spindle drive 49, the traversing unit 7 and the turret drive 50 (of which also a regulation is to be included).

The illustrated embodiments are not intended to limit the invention. So it is quite possible that the rings 13, 14 and the partial rings 24, 25, 30, 31 have a greater width than shown, so that quite a winding of the rings 13, 14 can be carried out with a reciprocating motion of the traversing unit 7 , It is also possible that several turns of the end 17 of the Spulguts 3 are introduced into the gap 16. The formation of the rings 13, 14 may differ from the illustrated embodiments. Thus, more than two partial rings may be provided one above the other in a ring 13, 14. It is also possible that in the illustrated partial cross section, the intermediate space 16 has an arbitrary contour with arbitrarily shaped end faces 27, 28. Thus, with a slight movement of the package traverse guide 12 during the winding of the rings 13, 14, a kind of tapered end face 27, 28 can be produced, to name only one example. Finally, in the figures, a simplifying view is chosen in which the transfer of the Spulguts for bringing about the offset V and / or for bringing about the distance 15 is not shown. In fact, for the provision of the offset V and / or the distance 15, the winding material 3 extends helically or helically around the lateral surface 11 of the winding 10 or the lateral surface of an inner partial ring, without substantially affecting the embodiment and technical mode of operation described according to the invention changes.

Notwithstanding the method explained above is also possible that an insertion of the end 17 of the Spulguts 3 in the gap 16 between the rings 13, 14 only after rotation of the turret 19 and the transfer of the winding spindle 8a with the finished wound coil in the change position he follows.

Preferably, the holding and / or guiding device 20 is designed such that it prevents axial displacement of the Spulguts 3 on the finished wound coil 2 exclusively in an axial direction in the direction of the catching device 23. Preferably, the holding and / or guiding device 20 or provided on the holding and / or guide rod 21 holding device is designed as a holding hook.

In the event that the winding machine 1 has a pressure roller for driving the coil and / or a contact roller, via which the Spulgut 3 to the outer surface 11 of the winding 10th is applied, preferably before the winding of the rings 13, 14, the pressure roller or application roller moves away from the lateral surface 11 of the winding 10.

It is possible that the insertion of the end 17 of the Spulguts 3 is brought into the gap 16 by rotation of the winding 10 about the axis of rotation or longitudinal axis of the winding spindle 8. But it is also possible that the insertion of the end 17 is at least partially caused by rotation of the turret 19 relative to the traversing unit 7.

As a traversing unit 7, any traversing units known per se can be used within the scope of the invention. Thus, for example, a traversing unit can be used with a linear motor according to the aforementioned prior art, in which the preparation of the rings 13, 14, the partial rings 24, 25, 30, 31, the offset 26, 32 and the distance 15 by suitable electrical Actuation of the linear motor and thereby induced movement of the winding material traverse guide is generated. It is also possible, for example, to use a traversing unit with a serrated shaft, in particular according to the aforementioned prior art, in which the preparation of the rings 13, 14 and the partial rings 24, 25, 30, 31 in the region of the laying channel of the counterbore shaft with a deceleration of the Kehrgewindewelle to zero speed occurs and the offset 26, 32 and the distance 15 are made by turning the counter-threaded shaft. But it is also possible that for the preparation of the rings 13, 14, the partial rings 24, 25, 30, 31, the offset 26, 32 and the distance 15 by a drive (in particular a piston-cylinder unit), the entire traversing unit with Kehrgewindewelle or even only the Kehrgewindewelle is axially displaced.

Preferably, for a band-shaped winding material whose thickness is smaller than 0.3 mm, an embodiment is used in which the rings 13, 14 are each wound without offset. For such a band-shaped winding material, the end of the Spulguts in the region of its two edges on the two rings 13, 14 "clamped" and thus held by frictional engagement. On the other hand, for a band-shaped winding material having a thickness of 0.3 mm or more, an embodiment of the rings with an offset in the region of a ring or in each case an offset on both rings is used.

LIST OF REFERENCE NUMBERS

1

Dishwasher

2

Kitchen sink

3

winding material

5

idler pulley

6

dancer

7

Traversing unit

8th

winding spindle

9

bobbin

10

winding

11

lateral surface

12

Winding material traversing guide

13

ring

14

ring

15

distance

16

gap

17

The End

18

Width B

19

revolver

20

Holding and / or guiding device

21

Holding and / or guide rod

22

admission

23

catcher

24

partial ring

25

partial ring

26

offset

27

axial end face

28

axial end face

29

step

30

partial ring

31

partial ring

32

Offset V

33

step

34

step

35

step

36

step

37

step

38

step

39

step

40

step

41

step

42

step

43

step

44

step

45

control unit

46

signal line

47

signal line

48

signal line

49

spindle drive

50

revolver drive

51

control line

52

control line

53

control line

54

undercut

55

undercut

Claims (15)

1. Spool (2) with a winding (10) of a tapelike winding good (3), characterised in that

   a) one end (17) of the winding good (3) is secured on a section of the winding good (3) positioned before the end (17)

   - friction-lockingly and/or

   - form-lockingly in the region of an undercut (54; 55),

   b) where on an outer surface (11) of the winding (10) the winding good (3)

   ba) forms a wound ring (13; 14), the end (17) of the winding good (3) being supported

   - friction-lockingly and/or

   - form-lockingly in the region of the undercut (54; 55),

   at the axial front face (27; 28) of the wound ring (13;14), or

   bb) forms two wound rings (13, 14), the end (17) of the winding good (3) being supported friction-lockingly and/or form-lockingly between axial front faces (27, 28) of the wound rings (13, 14) turned towards one another.
2. Spool (2) according to claim 1, characterised in that the axial front faces (27, 28) of the rings (13, 14) comprise an axial distance (15) that is smaller than the width B (18) of the tapelike winding good (3).
3. Spool (2) according to one of claims 1 to 2, characterised in that the or at least one ring (13; 14) comprises at least two layers of the tapelike winding good (3).
4. Spool (2) according to one of claims 1 to 3, characterised in that the or at least one ring (13, 14) comprises an axial extension that is smaller than double the width B (18) of the tapelike winding good (3).
5. Spool (2) according to claim 3 or 4, characterised in that the or at least one ring (13; 14) comprises at least two partial rings (24, 25; 30, 31), which are arranged with an offset V (26; 32) in axial direction, so that the or at least one ring (13; 14) comprises a stepped axial front face (27; 28).
6. Spool (2) according to claim 5, characterised in that the offset V (26; 32) is in the range of 0.1 to 0.4 times the width B (18) of the tapelike winding good (3).
7. Spool (2) according to claim 5 or 6, characterised in that the inner partial rings (24, 30) of the two rings (14, 13) comprise different thicknesses D₂₄, D₃₀.
8. Spool (2) according to one of claims 1 to 7, characterised in that the axial front faces (27, 28) of the rings (13, 14) at least in a partial region have a distance (15) from one another which corresponds to the product of the width B (18) of the tapelike winding good (3) with a factor, where the factor is in the range of 0.50 to 0.98.
9. Method for winding a spool (2), especially a spool (2) according to one of the preceding claims, with the following method steps:

   a) winding a winding (10) of a tapelike winding good (3),

   b) winding two rings (13, 14) of the winding good (3) on an outer surface (11) of the winding (10) with a distance (15) of axial front faces (27, 28) of the rings (13, 14) which is smaller than the width B (18) of the tapelike winding good (3),

   c) securing an end (17) of the winding good (3) form-lockingly and/or friction-lockingly by inserting the end (17) of the winding good (3) into an interspace (16) formed between the axial front faces (27, 28).
10. Method according to claim 9, characterised in that a ring (13; 14) with two partial rings (30, 31; 24, 25) is wound, where the partial rings (30, 31; 24, 25) are wound with an axial offset V (32; 26).
11. Method according to claim 9 or 10, characterised in that the winding good (3) is inserted into the interspace (16) formed between the axial front faces (28, 28) for securing the end (17) of the winding good (3) form-lockingly and/or friction-lockingly before the winding good (3) is severed.
12. Method according to one of claims 9 to 11, characterised in that

    a) first the winding (10) and the rings (13; 14) are wound in a winding position of a winding spindle (8a) held on a revolver (19),

    b) then the winding spindle (8a) is moved out of the winding position by rotating the revolver (19) and

    c) subsequently distant from the winding position of the winding spindle (8a) the end (17) of the winding good (3) is inserted to the interspace (16) formed between the axial front faces (27, 28) of the rings (13, 14) and/or the winding good (3) is severed.
13. Method according to one of claims 9 to 12, characterised in that after an end (17) of the winding good (3) has been inserted into the interspace (16) formed between the axial front faces (27, 28) the winding good (3) is supported on a holding and/or guiding device.
14. Winding machine (1) with at least one winding spindle (8), a revolver (19), a pressure roller and/or a traversing unit (7), characterised in that a control unit (45) is provided comprising control logic for executing a method according to one of claims 9 to 13.
15. Software product with control logic for executing a method according to one of claims 9 to 13 and/or for a control unit (45) of a winding machine (1) according to claim 14.

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