EP2669228A2 - Wound wire coil and method and device for manufacturing the same - Google Patents

Wound wire coil and method and device for manufacturing the same Download PDF

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Publication number
EP2669228A2
EP2669228A2 EP13002797.2A EP13002797A EP2669228A2 EP 2669228 A2 EP2669228 A2 EP 2669228A2 EP 13002797 A EP13002797 A EP 13002797A EP 2669228 A2 EP2669228 A2 EP 2669228A2
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EP
European Patent Office
Prior art keywords
wire
laying
spool
take
reel
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Granted
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EP13002797.2A
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German (de)
French (fr)
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EP2669228B1 (en
EP2669228A3 (en
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Fritz Binder
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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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/74—Driving arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • B65H54/2848—Arrangements for aligned winding
    • B65H54/2854—Detection or control of aligned winding or reversal
    • B65H54/2869—Control of the rotating speed of the reel or the traversing speed for aligned winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H55/00—Wound packages of filamentary material
    • B65H55/04—Wound packages of filamentary material characterised by method of winding
    • 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
    • B65H2701/36—Wires

Definitions

  • the invention relates to a wound wire coil, such as in particular a wire coil for receiving metal wire for further processing into jewelry, according to the preamble of claim 1 and a method for producing the wire coil and an apparatus for performing the method.
  • the wire spool has a take-up spool, which is essentially formed from a spool core with a cylindrical surface and lateral disks perpendicular thereto.
  • the take-up spool has a wire winding arranged on the spool of a wire, which forms a plurality of radially superimposed layers, each of which defines an average laying width corresponding to a respective pitch of adjacent wire sections of a layer.
  • Further deflecting points are formed on the side windows, at each of which a laying direction of the wire changes and thereby each form a transition between two superimposed layers. The deflection points can therefore also be referred to as laying reversal points.
  • a disadvantage of the wire spines obtained in this case is that they tend during unwinding to a sinking of the wire in the remaining wire winding. This sinking can lead to a jamming of the unwound wire within the remaining wire wrap, which can lead to disruption, production interruptions or errors in the products to be produced, for example, in the continuous production of jewelry chains.
  • DE 289216 shows a coil for electrical purposes, which consists of wire layers and intermediate thread layers.
  • a thread guide for the production of the thread layers is controlled so that it changes the direction several times when passing through a coil length.
  • the wire is laid in uniformly closed turns on the sleeve.
  • the object of the invention is to avoid the disadvantages mentioned in a generic wound wire coil and to ensure a trouble-free unwinding of the recorded wire winding.
  • a wound wire coil having the features of claim 1.
  • all deflection points are offset relative to the respective adjacent deflection points in the circumferential direction.
  • an unstable arrangement of superposed deflection points can be prevented, as they necessarily arise in the known Aufwickelclar in which the laying speed is coupled directly and in such a way with the winding speed that a respective resulting peripheral speed of the wire coil relative to the respective effective radius r a 2 ⁇ r - times the laying speed corresponds to in order to produce a uniform winding over the entire length and the different layers of the bobbin.
  • areas of indifferent storage conditions of the respective wire sections can be avoided by the wire coil according to the invention, which slip against each other during a unwinding operation and thereby promote sinking of the wire.
  • the average laying width increases from one layer to the next layer in the radial direction from the inside to the outside. This ensures that the respectively superimposed wire sections are not laid exactly parallel and form from the inside to the outside with respect to the circumferential direction becoming larger laying angle.
  • the resistance which the lower layers can counteract a sinking movement of the respectively overlying layers in the radial direction is increased, thereby preventing, in particular, the sinking of the wire in the respectively present unwinding area.
  • the average laying width of the individual layers is defined by the product of a ply diameter and a wire thickness divided by a core diameter of the wire coil, wherein the ply diameter is formed in particular by an inner diameter of the respective layer.
  • the object is achieved by a method for producing a wound wire spool in one of the above-mentioned embodiments in which the wire is fed at a wire speed to the take-up spool rotating at a rotational speed.
  • the wire is guided by a laying apparatus which reciprocates parallel to a rotation axis of the take-up spool over a length of the spool core between two switching points, wherein the laying apparatus has an average linear velocity between the switching points.
  • the rotational speed of the take-up spool decreases monotonically during the laying process.
  • an increasing average laying width of the layers is generated from the inside to the outside during the winding process at a constant wire speed. In this way, the resistance that the lower layers of a Eininkschul the respective overlying layers in the radial direction counter, increased.
  • the rotational speed of the take-up spool is abruptly reduced while the linear speed of the laying apparatus is kept substantially constant between the switching points.
  • a uniform winding of the individual layers with outwardly increasing average laying width and increasing laying angle is ensured in particular at constant wire and linear speed.
  • the rotational speed of the take-up spool whenever the laying device reaches one of the switching points, is reduced in such a way that a circumferential speed is kept substantially constant at the respective outer layer of the wire winding and, moreover, the laying width is the product of the respective ply diameter and the wire thickness divided by a core diameter of the wire coil corresponds. This ensures that from the inside to the outside with respect to the circumferential direction increasing laying angle is formed by the sinking of the wire can be prevented in a respective current unwinding.
  • the object is achieved by a device for carrying out the method in one of the aforementioned embodiments, in which a wire dispensing device is provided, from which the wire can be fed via the laying apparatus of a reel receiving, to which the take-up reel is driven by a coil drive. It is provided that the Veriegeapparat has a separate from the reel drive of the take-up reel drive. As a result, the laying apparatus can be driven independently of the coil drive in order to be able to form uniformly an increasing laying width in the individual layers from the inside to the outside.
  • the laying drive is driven at a mean linear speed which is proportional to the wire speed of the wire dispensing device is to be able to produce a predetermined winding pattern of the wire winding even at varying wire speeds.
  • the laying apparatus is driven in operation with a constant average linear speed in order to achieve a particularly uniform wire winding can.
  • Fig. 1 shows a wound wire spool 2 with a take-up spool 4, which has a spool core 6 with a cylindrical surface 8.
  • the cylindrical surface 8 is bounded at both ends by a respective side window 10 perpendicular to it.
  • a wire winding 12 is wound on the spool core 6, which is formed from a wire 14, such as in particular a customary for the production of jewelry metal wire.
  • the wire winding 12 comprises in the radial direction R of the wire coil 2 a plurality of superimposed layers L1, L2, L3, L4 of the wire 14th
  • Each of the layers L1, L2, L3, L4 defines a laying width bV1, bV2, bV3, bV4, which consists of a length l of the surface 8 bounded by the side windows 10 by the respective number of juxtaposed winding sections of the relevant layer L1, L2, L3, L4 calculated.
  • the winding sections are distributed within the respective layer L1, L2, L3, L4 substantially uniformly over the length I, that is, with substantially equal distances, as in Fig. 1 shown.
  • the laying widths bV1, bV2, bV3, bV4 of the layers L1, L2, L3, L4 increase in the radial direction R from inside to outside.
  • the laying widths bV1, bV2, bV3, bV4 correspond to a product of a respective ply diameter DL1, DL2, DL3, DL4 and a wire thickness dD of the wire 14 divided by a core diameter DSp of the take-up reel 4.
  • a device 20 is shown, by means of which the wound wire spool 2 can be produced.
  • This has a wire dispenser 22 in the form of an annealing device, from which the wire 14 is output at a wire speed vG.
  • the device 20 has a laying device 24, via which the wire 14 can be fed in a predetermined manner to the take-up spool 4 arranged in a spool receptacle 26.
  • the laying device 24 has a laying apparatus 28 which can be displaced parallel to a rotation axis AD of the take-up spool 4 clamped in the spool mount 26 by means of a laying drive 30.
  • the laying apparatus 24 can in this case be linearly moved back and forth along a laying axis AV between two switching points 32, which are arranged so that when they reach the guided by the laying apparatus 24 wire 14 is respectively disposed at the level of one of the ends of the spool core 6 so to be able to form the deflection points U1, U2, U3, U4 of the wire winding 12 on the side windows 10.
  • the take-up reel 4 is also driven by a reel drive 34 about the axis of rotation AD, which is formed separately from the laying drive 30.
  • the wire dispenser 22, the laying drive 30 and the reel drive 34 are connected to a control device 36.
  • the wire speed vG, the average linear velocity vL and the rotational speed vD are coordinated with each other by means of the control device 36 such that the rotational speed vD of the take-up spool 4 with respect to the average linear velocity vL with each produced layer L1, L2, L3, L4 the wire winding 12 continues to decrease.
  • the laying drive 30 is preferably driven with a linear velocity v L which is proportional to the wire speed v G and in particular remains constant.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Winding Filamentary Materials (AREA)

Abstract

The wound wire coil (2) has a take-up reel (4) having vertically side plates (10) and a coil core (6) with cylindrical surface (8). A wire winding (12) of a wire (14) on the coil core has several layers (L1,L2,L3,L4) radially arranged one above the other. Each layer has a middle moving width and forms detour dots at the side plates. The detour dots are staggered to the respectively adjacent detour dots in the circumferential direction at a transition between two superposed layers. Independent claims are included for the following: (1) method for manufacture of wound wire coil; and (2) device for manufacture of wound wire coil.

Description

Die Erfindung betrifft eine gewickelte Drahtspule, wie insbesondere eine Drahtspule zur Aufnahme von Metalldraht für die Weiterverarbeitung zu Schmuck, nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Herstellung der Drahtspule und eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a wound wire coil, such as in particular a wire coil for receiving metal wire for further processing into jewelry, according to the preamble of claim 1 and a method for producing the wire coil and an apparatus for performing the method.

Die Drahtspule weist dabei eine Aufnahmespule auf, die im Wesentlichen aus einem Spulenkern mit zylindrischer Oberfläche und dazu senkrecht stehenden Seitenscheiben gebildet ist. Zudem weist die Aufnahmespule eine auf dem Spulenkern angeordnete Drahtwickelung eines Drahtes auf, der mehrere in radialer Richtung übereinander angeordnete Lagen bildet, von denen jede eine mittlere Verlegebreite definiert, die einem jeweiligen Windungsabstand benachbart angeordneter Drahtabschnitte einer Lage entspricht. Ferner sind an den Seitenscheiben Umlenkpunkte ausgebildet, an denen jeweils eine Verlegerichtung des Drahtes wechselt und die dadurch jeweils einen Übergang zwischen zwei übereinander liegenden Lagen bilden. Die Umlenkpunkte können daher auch als Verlegeumkehrpunkte bezeichnet werden.In this case, the wire spool has a take-up spool, which is essentially formed from a spool core with a cylindrical surface and lateral disks perpendicular thereto. In addition, the take-up spool has a wire winding arranged on the spool of a wire, which forms a plurality of radially superimposed layers, each of which defines an average laying width corresponding to a respective pitch of adjacent wire sections of a layer. Further deflecting points are formed on the side windows, at each of which a laying direction of the wire changes and thereby each form a transition between two superimposed layers. The deflection points can therefore also be referred to as laying reversal points.

Aus DE 600 38 214 T2 ist eine Vorrichtung und ein Verfahren zum Wickeln von Drahtspulen bekannt, die eine Spindel mit daran befestigter Spule aufweisen. Ein Verschiebemechanismus bewirkt dabei die relative Verschiebung eines Drahtzuführteils gegenüber der Spule. Um dabei auch bei dünnen Drähten das Drahtzuführteil mit einer besonders genauen Steigung verlagern zu können, um exakt zueinander ausgerichtete aneinander liegende Drahtwickelungen gewährleisten zu können, weist der Verschiebemechanismus zwei Verschiebemotoren auf, die voneinander unabhängig betrieben werden können.Out DE 600 38 214 T2 For example, an apparatus and method for winding wire spools having a spindle with a spool attached thereto is known. A displacement mechanism causes the relative displacement of a Drahtzuführteils relative to the coil. In order to be able to displace the Drahtzuführteil with a particularly accurate pitch even with thin wires to ensure exactly aligned to each other lying wire windings, the displacement mechanism on two displacement motors, which can be operated independently.

Nachteilig an den hierbei gewonnenen Drahtsputen ist, dass diese beim Abwickeln zu einem Einsinken des Drahtes in die verbleibende Drahtwickelung neigen. Dieses Einsinken kann dabei zu einem Festklemmen des abzuwickelnden Drahtes innerhalb der verbleibenden Drahtwickelung führen, was beispielsweise bei der fortlaufenden Herstellung von Schmuckketten zu Störungen, Produktionsabbrüchen oder zu Fehlern an den herzustellenden Produkten führen kann.A disadvantage of the wire spines obtained in this case is that they tend during unwinding to a sinking of the wire in the remaining wire winding. This sinking can lead to a jamming of the unwound wire within the remaining wire wrap, which can lead to disruption, production interruptions or errors in the products to be produced, for example, in the continuous production of jewelry chains.

DE 289216 zeigt eine Spule für elektrische Zwecke, die aus Drahtlagen und dazwischen liegenden Fadenlagen besteht. Ein Fadenführer zur Herstellung der Fadenlagen ist dabei so gesteuert, dass er beim Durchlaufen einer Spulenlänge mehrmals die Richtung ändert. Gleichzeitig wird der Draht in gleichmäßig geschlossenen Windungen auf die Hülse gelegt. DE 289216 shows a coil for electrical purposes, which consists of wire layers and intermediate thread layers. A thread guide for the production of the thread layers is controlled so that it changes the direction several times when passing through a coil length. At the same time, the wire is laid in uniformly closed turns on the sleeve.

Die Aufgabe der Erfindung ist es, bei einer gattungsgemäßen gewickelten Drahtspule die genannten Nachteile zu vermeiden und ein störungsfreies Abwickeln der aufgenommenen Drahtwickelung zu gewährleisten.The object of the invention is to avoid the disadvantages mentioned in a generic wound wire coil and to ensure a trouble-free unwinding of the recorded wire winding.

Diese Aufgabe wird durch eine gewickelte Drahtspule mit den Merkmalen des Anspruchs 1 gelöst. Dabei sind alle Umlenkpunkte gegenüber den jeweils benachbarten Umlenkpunkten in Umfangsrichtung versetzt angeordnet. Hierdurch kann eine instabile Anordnung von übereinander liegenden Umlenkpunkten verhindert werden, wie sie bei den bekannten Aufwickelverfahren zwingend entstehen, bei denen die Verlegegeschwindigkeit direkt und derart mit der Aufwickelgeschwindigkeit gekoppelt ist, dass eine jeweils resultierende Umfangsgeschwindigkeit der Drahtspule bezogen auf den jeweiligen effektiven Radius r einem 2πr- fachen der Verlegegeschwindigkeit entspricht, um über die gesamte Länge und die verschiedenen Lagen des Spulenkerns eine gleichmäßige Wickelung herstellen zu können. Im Gegensatz hierzu können durch die erfindungsgemäße Drahtspule Bereiche mit indifferenten Lagerungszuständen der betreffenden Drahtabschnitte vermieden werden, die während eines Abwickelvorganges gegeneinander verrutschen und dadurch ein Einsinken des Drahtes begünstigen können.This object is achieved by a wound wire coil having the features of claim 1. In this case, all deflection points are offset relative to the respective adjacent deflection points in the circumferential direction. In this way, an unstable arrangement of superposed deflection points can be prevented, as they necessarily arise in the known Aufwickelverfahren in which the laying speed is coupled directly and in such a way with the winding speed that a respective resulting peripheral speed of the wire coil relative to the respective effective radius r a 2πr - times the laying speed corresponds to in order to produce a uniform winding over the entire length and the different layers of the bobbin. In contrast, areas of indifferent storage conditions of the respective wire sections can be avoided by the wire coil according to the invention, which slip against each other during a unwinding operation and thereby promote sinking of the wire.

In einer besonders vorteilhaften Ausführungsform nimmt die mittlere Verlegebreite von einer Lage zur jeweils nächsten Lage in radialer Richtung von innen nach außen zu. Hierdurch wird erreicht, dass die jeweils übereinander liegenden Drahtabschnitte nicht genau parallel verlegt sind und von innen nach außen einen bezüglich der Umfangsrichtung größer werdenden Verlegewinkel ausbilden. Durch die nach außen hin zunehmende Verlegebreite wird dabei der Widerstand, den die unteren Lagen einer Einsinkbewegung der jeweils darüber liegenden Lagen in radialer Richtung entgegen setzen können, erhöht und dadurch insbesondere das Einsinken des Drahtes im jeweils aktuellen Abwickelungsbereich verhindert.In a particularly advantageous embodiment, the average laying width increases from one layer to the next layer in the radial direction from the inside to the outside. This ensures that the respectively superimposed wire sections are not laid exactly parallel and form from the inside to the outside with respect to the circumferential direction becoming larger laying angle. As a result of the laying width increasing toward the outside, the resistance which the lower layers can counteract a sinking movement of the respectively overlying layers in the radial direction is increased, thereby preventing, in particular, the sinking of the wire in the respectively present unwinding area.

Dabei ist es günstig, wenn die mittlere Verlegebreite der einzelnen Lagen durch das Produkt aus einem Lagendurchmesser und einer Drahtstärke geteilt durch einen Kerndurchmesser der Drahtspule definiert ist, wobei der Lagendurchmesser insbesondere durch einen Innendurchmesser der jeweiligen Lage gebildet ist. Hierdurch kann eine in ihren Lagen jeweils gleichmäßig gewickelte Drahtspule bereitgestellt werden, die trotz relativ dichter Wickelung beim Abwickeln einen ausreichenden Widerstand gegen das Einsinken des abzuwickelnden Drahtes bildet.It is advantageous if the average laying width of the individual layers is defined by the product of a ply diameter and a wire thickness divided by a core diameter of the wire coil, wherein the ply diameter is formed in particular by an inner diameter of the respective layer. In this way, a uniformly wound in its layers each wire coil can be provided, which forms a sufficient resistance against the sinking of the unwound wire despite relatively dense winding during unwinding.

Ferner wird die Aufgabe durch ein Verfahren zur Herstellung einer gewickelten Drahtspule in einer der oben genannten Ausführungsformen gelöst, bei dem der Draht mit einer Drahtgeschwindigkeit der Aufnahmespule zugeführt wird, die mit einer Drehgeschwindigkeit dreht. Dabei wird der Draht von einem Verlegeapparat geführt, der sich parallel zu einer Drehachse der Aufnahmespule über eine Länge des Spulenkerns zwischen zwei Umschaltpunkten hin- und herbewegt, wobei der Verlegeapparat zwischen den Umschaltpunkten eine mittlere Lineargeschwindigkeit aufweist. Im Verhältnis zu dieser Lineargeschwindigkeit nimmt die Drehgeschwindigkeit der Aufnahmespule während des Verlegevorganges monoton ab. Hierdurch wird während des Wickelvorganges bei gleich bleibender Drahtgeschwindigkeit eine zunehmende mittlere Verlegebreite der Lagen von innen nach außen erzeugt. Auf diese Weise wird der Widerstand, den die unteren Lagen einer Einsinkbewegung der jeweils darüber liegenden Lagen in radialer Richtung entgegen setzen, erhöht.Further, the object is achieved by a method for producing a wound wire spool in one of the above-mentioned embodiments in which the wire is fed at a wire speed to the take-up spool rotating at a rotational speed. In this case, the wire is guided by a laying apparatus which reciprocates parallel to a rotation axis of the take-up spool over a length of the spool core between two switching points, wherein the laying apparatus has an average linear velocity between the switching points. In relation to this linear speed, the rotational speed of the take-up spool decreases monotonically during the laying process. As a result, an increasing average laying width of the layers is generated from the inside to the outside during the winding process at a constant wire speed. In this way, the resistance that the lower layers of a Eininkbewegung the respective overlying layers in the radial direction counter, increased.

Vorteilhafterweise wird hierbei bei jedem Erreichen eines der Umschaltpunkte durch den Verlegeapparat, die Drehgeschwindigkeit der Aufnahmespule sprunghaft vermindert während die Lineargeschwindigkeit des Verlegeapparates zwischen den Umschaltpunkten im Wesentlichen konstant gehalten wird. Auf diese Weise wird insbesondere bei gleichbleibender Draht- und Lineargeschwindigkeit eine gleichmäßige Wickelung der einzelnen Lagen mit nach außen zunehmender mittlerer Verlegebreite und größer werdendem Verlegewinkel gewährleistet.Advantageously, each time one of the switching points is reached by the laying apparatus, the rotational speed of the take-up spool is abruptly reduced while the linear speed of the laying apparatus is kept substantially constant between the switching points. In this way, a uniform winding of the individual layers with outwardly increasing average laying width and increasing laying angle is ensured in particular at constant wire and linear speed.

Zudem ist es günstig, wenn die Drehgeschwindigkeit der Aufnahmespule, immer wenn der Verlegeapparat einen der Umschaltpunkte erreicht, derart vermindert wird, dass eine Umfangsgeschwindigkeit an der jeweils äußeren Lage der Drahtwickelung im Wesentlichen konstant gehalten wird und zudem die Verlegebreite dem Produkt aus dem jeweiligen Lagendurchmesser und der Drahtstärke geteilt durch einen Kerndurchmesser der Drahtspule entspricht. Hierdurch wird erreicht, dass von innen nach außen ein bezüglich der Umfangsrichtung zunehmender Verlegewinkel ausgebildet wird, durch den das Einsinken des Drahtes in einem jeweils aktuellen Abwickelungsbereich verhindert werden kann.In addition, it is favorable if the rotational speed of the take-up spool, whenever the laying device reaches one of the switching points, is reduced in such a way that a circumferential speed is kept substantially constant at the respective outer layer of the wire winding and, moreover, the laying width is the product of the respective ply diameter and the wire thickness divided by a core diameter of the wire coil corresponds. This ensures that from the inside to the outside with respect to the circumferential direction increasing laying angle is formed by the sinking of the wire can be prevented in a respective current unwinding.

Darüber hinaus wird die Aufgabe durch eine Vorrichtung zur Durchführung des Verfahrens in einer der genannten Ausführungsformen gelöst, bei der eine Drahtausgabeeinrichtung vorgesehen ist, aus der der Draht über den Verlegeapparat einer Spulenaufnahme zugeführt werden kann, an der die Aufnahmespule durch einen Spulenantrieb antreibbar ist. Dabei ist vorgesehen, dass der Veriegeapparat einen vom Spulenantrieb der Aufnahmespule getrennten Verlegeantrieb aufweist. Hierdurch kann der Verlegeapparat unabhängig vom Spulenantrieb angetrieben werden, um von innen nach außen eine zunehmende Verlegebreite in den einzelnen Lagen gleichmäßig ausbilden zu können.In addition, the object is achieved by a device for carrying out the method in one of the aforementioned embodiments, in which a wire dispensing device is provided, from which the wire can be fed via the laying apparatus of a reel receiving, to which the take-up reel is driven by a coil drive. It is provided that the Veriegeapparat has a separate from the reel drive of the take-up reel drive. As a result, the laying apparatus can be driven independently of the coil drive in order to be able to form uniformly an increasing laying width in the individual layers from the inside to the outside.

Vorteilhafterweise ist der Verlegeantrieb dabei mit einer mittleren Lineargeschwindigkeit angetrieben, die proportional zur Drahtgeschwindigkeit der Drahtausgabeeinrichtung ist, um auch bei variierenden Drahtgeschwindigkeiten, ein vorbestimmtes Wickelbild der Drahtwickelung herstellen zu können.Advantageously, the laying drive is driven at a mean linear speed which is proportional to the wire speed of the wire dispensing device is to be able to produce a predetermined winding pattern of the wire winding even at varying wire speeds.

Ferner ist es günstig, wenn der Verlegeapparat im Betrieb mit gleich bleibender mittlerer Lineargeschwindigkeit angetrieben ist, um eine besonders gleichmäßige Drahtwickelung erzielen zu können.Furthermore, it is advantageous if the laying apparatus is driven in operation with a constant average linear speed in order to achieve a particularly uniform wire winding can.

In den Figuren ist eine beispielhafte Ausführungsform der Erfindung dargestellt. Es zeigen:

Figur 1
einen Längsschnitt durch eine erfindungsgemäße gewickelte Drahtspule,
Figur 2
eine stirnseitige Draufsicht auf die Drahtspule in Richtung II aus Fig 1 und
Figur 3
eine Draufsicht auf eine Vorrichtung zur Herstellung der gewickelten Drahtspule nach Fig. 1.
In the figures, an exemplary embodiment of the invention is shown. Show it:
FIG. 1
a longitudinal section through a wound wire coil according to the invention,
FIG. 2
a frontal plan view of the wire coil in the direction of II Fig. 1 and
FIG. 3
a top view of an apparatus for producing the wound wire coil according to Fig. 1 ,

Fig. 1 zeigt eine gewickelte Drahtspule 2 mit einer Aufnahmespule 4, die einen Spulenkern 6 mit zylindrischer Oberfläche 8 aufweist. Die zylindrische Oberfläche 8 ist dabei zu beiden Enden hin durch jeweils eine zu ihr senkrecht stehende Seitenscheibe 10 begrenzt. Fig. 1 shows a wound wire spool 2 with a take-up spool 4, which has a spool core 6 with a cylindrical surface 8. The cylindrical surface 8 is bounded at both ends by a respective side window 10 perpendicular to it.

Zwischen den Seitenscheiben 10 ist auf dem Spulenkern 6 eine Drahtwickelung 12 aufgewickelt, die aus einem Draht 14, wie insbesondere einem zur Herstellung von Schmuckstücken üblichen Metalldraht, gebildet ist. Die Drahtwickelung 12 umfasst dabei in radialer Richtung R der Drahtspule 2 mehrere übereinander angeordnete Lagen L1, L2, L3, L4 des Drahtes 14.Between the side windows 10, a wire winding 12 is wound on the spool core 6, which is formed from a wire 14, such as in particular a customary for the production of jewelry metal wire. The wire winding 12 comprises in the radial direction R of the wire coil 2 a plurality of superimposed layers L1, L2, L3, L4 of the wire 14th

Alternativ zu dem dargestellten Draht 14 mit rundem Querschnitt ist auch die Verwendung eines Drahtes 14 mit ovalem, halbrundem oder flachern Querschnitt möglich.As an alternative to the illustrated wire 14 with a round cross section, the use of a wire 14 with an oval, half-round or flattened cross section is also possible.

Jede der Lagen L1, L2, L3, L4 definiert hierbei eine Verlegebreite bV1, bV2, bV3, bV4 die sich aus einer Länge I der durch die Seitenscheiben 10 begrenzten Oberfläche 8 durch die jeweilige Zahl der nebeneinander angeordneten Wickelungsabschnitte der betreffenden Lage L1, L2, L3, L4 errechnet. Dabei verteilen sich die Wickelungsabschnitte innerhalb der jeweiligen Lage L1, L2, L3, L4 im Wesentlichen gleichmäßig über die Länge I, das heißt mit im Wesentlichen gleichen Abständen, wie in Fig. 1 dargestellt.Each of the layers L1, L2, L3, L4 defines a laying width bV1, bV2, bV3, bV4, which consists of a length l of the surface 8 bounded by the side windows 10 by the respective number of juxtaposed winding sections of the relevant layer L1, L2, L3, L4 calculated. In this case, the winding sections are distributed within the respective layer L1, L2, L3, L4 substantially uniformly over the length I, that is, with substantially equal distances, as in Fig. 1 shown.

Allerdings nehmen die Verlegebreiten bV1, bV2, bV3, bV4 der Lagen L1, L2, L3, L4 in radialer Richtung R von innen nach außen zu. Dabei entsprechen die Verlegebreiten bV1, bV2, bV3, bV4 einem Produkt aus einem jeweiligen Lagendurchmesser DL1, DL2, DL3, DL4 und einer Drahtstärke dD des Drahtes 14 geteilt durch einen Kerndurchmesser DSp der Aufnahmespule 4.However, the laying widths bV1, bV2, bV3, bV4 of the layers L1, L2, L3, L4 increase in the radial direction R from inside to outside. The laying widths bV1, bV2, bV3, bV4 correspond to a product of a respective ply diameter DL1, DL2, DL3, DL4 and a wire thickness dD of the wire 14 divided by a core diameter DSp of the take-up reel 4.

Hierdurch nimmt einerseits ein Verlegewinkel w (siehe Fig. 3) des gewickelten Drahtabschnittes der einzelnen Lagen L1, L2, L3, L4 gegenüber einer Umfangsrichtung U der Aufnahmespule 4 von innen nach außen zu. Andererseits wird gewährleistet, dass Umlenkpunkte U1, U2, U3, U4 der Drahtwickelung 12, die durch wechselnde Verlegerichtungen der Lagen L1, L2, L3, L4 an den Seitenscheiben 10 gebildet werden und dabei jeweils einen Übergang zwischen zwei übereinander liegenden Lagen L1, L2, L3, L4 ausbilden, bezüglich der Umfangrichtung U zueinander versetzt angeordnet sind, wie in Fig. 2 dargestellt.As a result, on the one hand takes a laying angle w (see Fig. 3 ) of the wound wire portion of the individual layers L1, L2, L3, L4 with respect to a circumferential direction U of the take-up reel 4 from inside to outside. On the other hand, it is ensured that deflection points U1, U2, U3, U4 of the wire winding 12, which are formed by changing installation directions of the layers L1, L2, L3, L4 on the side windows 10 and thereby in each case a transition between two superimposed layers L1, L2, L3, L4 form, with respect to the circumferential direction U are arranged offset to each other, as in Fig. 2 shown.

In Fig. 3 ist eine Vorrichtung 20 dargestellt, mittels der die gewickelte Drahtspule 2 hergestellt werden kann. Diese weist eine Drahtausgabeeinrichtung 22 in Form einer Glühvorrichtung auf, aus der der Draht 14 mit einer Drahtgeschwindigkeit vG ausgegeben wird.In Fig. 3 a device 20 is shown, by means of which the wound wire spool 2 can be produced. This has a wire dispenser 22 in the form of an annealing device, from which the wire 14 is output at a wire speed vG.

Ferner weist die Vorrichtung 20 eine Verlegeeinrichtung 24 auf, über die der Draht 14 in vorbestimmter Weise der in einer Spulenaufnahme 26 angeordneten Aufnahmespule 4 zugeführt werden kann. Die Verlegeeinrichtung 24 weist hierzu einen Verlegeapparat 28 auf, der mittels eines Verlegeantriebs 30 parallel zu einer Drehachse AD der in der Spulenaufnahme 26 eingespannten Aufnahmespule 4 verlagerbar ist. Der Verlegeapparat 24 kann hierbei entlang einer Verlegeachse AV zwischen zwei Umschaltpunkten 32 linear hin- und herbewegt werden, die so angeordnet sind, dass bei deren Erreichen der vom Verlegeapparat 24 geführte Draht 14 jeweils auf Höhe eines der Enden des Spulenkerns 6 angeordnet ist, um so die Umlenkpunkte U1, U2, U3, U4 der Drahtwickelung 12 an den Seitenscheiben 10 ausbilden zu können.Furthermore, the device 20 has a laying device 24, via which the wire 14 can be fed in a predetermined manner to the take-up spool 4 arranged in a spool receptacle 26. For this purpose, the laying device 24 has a laying apparatus 28 which can be displaced parallel to a rotation axis AD of the take-up spool 4 clamped in the spool mount 26 by means of a laying drive 30. The laying apparatus 24 can in this case be linearly moved back and forth along a laying axis AV between two switching points 32, which are arranged so that when they reach the guided by the laying apparatus 24 wire 14 is respectively disposed at the level of one of the ends of the spool core 6 so to be able to form the deflection points U1, U2, U3, U4 of the wire winding 12 on the side windows 10.

Zur Herstellung der Drahtwickelung 12 wird zudem die Aufnahmespule 4 von einem Spulenantrieb 34 um die Drehachse AD herum angetrieben, der separat zum Verlegeantrieb 30 ausgebildet ist.To produce the wire winding 12, the take-up reel 4 is also driven by a reel drive 34 about the axis of rotation AD, which is formed separately from the laying drive 30.

Um hierbei eine mittlere Lineargeschwindigkeit vL des Verlegeapparates 24 und eine Drehgeschwindigkeit vD der Aufnahmespule 4 auf die Drahtgeschwindigkeit vG der Drahtausgabeeinrichtung 22 abstimmen zu können, sind die Drahtausgabeeinrichtung 22, der Verlegeantrieb 30 und der Spulenantrieb 34 mit einer Steuerungseinrichtung 36 verbunden.In order to be able to tune a mean linear velocity vL of the laying apparatus 24 and a rotation speed vD of the take-up reel 4 to the wire speed vG of the wire dispenser 22, the wire dispenser 22, the laying drive 30 and the reel drive 34 are connected to a control device 36.

Zur Herstellung der gewickelten Drahtspule 2 werden die Drahtgeschwindigkeit vG, die mittlere Lineargeschwindigkeit vL und die Drehgeschwindigkeit vD mittels der Steuerungseinrichtung 36 derart aufeinander abgestimmt, dass die Drehgeschwindigkeit vD der Aufnahmespule 4 gegenüber der mittleren Lineargeschwindigkeit vL mit jeder hergestellten Lage L1, L2, L3, L4 der Drahtwickelung 12 immer weiter abnimmt.To produce the wound wire spool 2, the wire speed vG, the average linear velocity vL and the rotational speed vD are coordinated with each other by means of the control device 36 such that the rotational speed vD of the take-up spool 4 with respect to the average linear velocity vL with each produced layer L1, L2, L3, L4 the wire winding 12 continues to decrease.

Die Verminderung der Drehgeschwindigkeit vD an den Umlenkpunkten U1, U2, U3, U4 erfolgt dabei derart, dass eine Umfangsgeschwindigkeit vU an der jeweils äußeren Lage L1, L2, L3, L4 der Drahtwickelung 12 während des Wickelungsvorgangs im Wesentlichen konstant gehalten wird.The reduction of the rotational speed vD at the deflection points U1, U2, U3, U4 takes place in such a way that a peripheral speed vU at the respective outer layer L1, L2, L3, L4 of the wire winding 12 is kept essentially constant during the winding process.

Zudem wird der Verlegeantrieb 30 dabei bevorzugterweise mit einer zur Drahtgeschwindigkeit vG proportionalen und insbesondere gleich bleibenden Lineargeschwindigkeit vL angetrieben.In addition, the laying drive 30 is preferably driven with a linear velocity v L which is proportional to the wire speed v G and in particular remains constant.

Claims (9)

Gewickelte Drahtspule (2)
mit einer Aufnahmespule (4), die einen Spulenkern (6) mit zylindrischer Oberfläche (8) und dazu senkrecht stehende Seitenscheiben (10) aufweist, und
einer auf dem Spulenkern (6) angeordneten Drahtwickelung (12) eines Drahtes (14), der mehrere in radialer Richtung (R) übereinander angeordnete Lagen (L1, L2, L3, L4) aufweist,
wobei jede Lage (L1, L2, L3, L4) eine mittlere Verlegebreite (bV) definiert und an den Seitenscheiben (10) Umlenkpunkte (U1, U2, U3, U4) ausgebildet sind, an denen jeweils eine Verlegerichtung des Drahtes (14) wechselt und die dadurch jeweils einen Übergang zwischen zwei übereinander liegenden Lagen (L1, L2, L3, L4) bilden,
dadurch gekennzeichnet, dass alle Umlenkpunkte (U1, U2, U3, U4) zu den jeweils benachbarten Umlenkpunkten (U1, U2, U3, U4) in Umfangsrichtung (U) versetzt angeordnet sind.Wound wire spool (2)
with a take-up spool (4), which has a spool core (6) with a cylindrical surface (8) and vertical side windows (10), and
a wire winding (12) of a wire (14) arranged on the spool core (6) and having a plurality of layers (L1, L2, L3, L4) arranged one above the other in the radial direction (R),
wherein each layer (L1, L2, L3, L4) defines an average laying width (bV) and deflecting points (U1, U2, U3, U4) are formed on the side windows (10), at each of which a laying direction of the wire (14) changes and thereby each forming a transition between two superimposed layers (L1, L2, L3, L4),
characterized in that all deflection points (U1, U2, U3, U4) to the respective adjacent deflection points (U1, U2, U3, U4) are arranged offset in the circumferential direction (U). Gewickelte Drahtspule nach Anspruch 1, dadurch gekennzeichnet, dass die mittlere Verlegebreite (bV) zwischen den Lagen (L1, L2, L3, L4) in radialer Richtung (R) von innen nach außen zunimmt.Wound wire spool according to claim 1, characterized in that the average laying width (bV) between the layers (L1, L2, L3, L4) in the radial direction (R) increases from the inside to the outside. Gewickelte Drahtspule nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die mittlere Verlegebreite (bV) der einzelnen Lagen (L1, L2, L3, L4) dem Produkt aus einem Lagendurchmesser (DL) und einer Drahtstärke (dD) geteilt durch einen Kerndurchmesser (DSp) der Drahtspule (2) entspricht.A wound wire coil according to claim 1 or 2, characterized in that the average laying width (bV) of the individual layers (L1, L2, L3, L4) is the product of a layer diameter (DL) and a wire thickness (dD) divided by a core diameter (DSp ) corresponds to the wire coil (2). Verfahren zur Herstellung einer gewickelten Drahtspule nach einem der Ansprüche 1 bis 3, bei dem der Draht (14) mit einer Drahtgeschwindigkeit (vG) der Aufnahmespule (4) zugeführt wird, die mit einer Drehgeschwindigkeit (vD) dreht, und der Draht (14) dabei von einem Verlegeapparat (28) geführt wird, der sich parallel zu einer Drehachse (AD) der Aufnahmespule (4) über eine Länge (I) des Spulenkerns (6) zwischen zwei Umschaltpunkten (32) hin- und herbewegt, dadurch gekennzeichnet, dass der Verlegeapparat (28) zwischen den Umschaltpunkten (32) eine mittlere Lineargeschwindigkeit (vL) aufweist, im Verhältnis zu der Drehgeschwindigkeit (vD) der Aufnahmespule (4) während des Verlegevorganges monoton abnimmt.A method of manufacturing a wound wire spool according to any one of claims 1 to 3, wherein the wire (14) is fed at a wire speed (vG) to the take-up spool (4) rotating at a rotational speed (vD) and the wire (14). guided by a laying apparatus (28) which moves parallel to a rotation axis (AD) of the take-up spool (4) over a length (I) of the spool core (6) between two switching points (32), characterized in that the laying apparatus (28) has a mean linear velocity (vL) between the switching points (32) which decreases monotonically in relation to the rotational speed (vD) of the take-up spool (4) during the laying operation. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass bei jedem Erreichen eines der Umschaltpunkte (32) durch den Verlegeapparat (28), die Drehgeschwindigkeit (vD) der Aufnahmespule (4) sprunghaft vermindert wird während die mittlere Lineargeschwindigkeit (vL) des Verlegeapparates (28) zwischen den Umschaltpunkten (32) im Wesentlichen konstant gehalten wird.A method according to claim 4, characterized in that each time one of the switching points (32) by the laying apparatus (28), the rotational speed (vD) of the take-up reel (4) is abruptly reduced while the average linear velocity (vL) of the laying apparatus (28). between the switching points (32) is kept substantially constant. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Drehgeschwindigkeit (vD) der Aufnahmespule (4) beim Erreichen der Umschaltpunkte (32) durch den Verlegeapparat (28) derart vermindert wird, dass eine Umfangsgeschwindigkeit (vU) an der jeweils äußeren Lage (L1, L2, L3, L4) der Drahtwickelung (12) im Wesentlichen konstant gehalten wird.A method according to claim 4, characterized in that the rotational speed (vD) of the take-up spool (4) on reaching the switching points (32) by the laying apparatus (28) is reduced such that a peripheral speed (vU) at the respective outer layer (L1, L2, L3, L4) of the wire winding (12) is kept substantially constant. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 4 bis 6 mit einer Drahtausgabeeinriditung (22), aus der der Draht (14) über den Verlegeapparat (28) einer Spulenaufnahme (26) zuführbar ist, an der die Aufnahmespule (4) durch einen Spulenantrieb (34) antreibbar ist, dadurch gekennzeichnet, dass der Verlegeapparat (28) einen vom Spulenantrieb (34) der Aufnahmespule (4) getrennten Verlegeantrieb (30) aufweist.Apparatus for carrying out the method according to one of Claims 4 to 6, having a wire dispensing device (22) from which the wire (14) can be fed via the laying apparatus (28) to a reel holder (26) on which the take-up reel (4) is driven by a reel drive (34) is drivable, characterized in that the laying apparatus (28) has a from the coil drive (34) of the take-up reel (4) separate laying drive (30). Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Verlegeantrieb (30) mit einer mittleren Lineargeschwindigkeit (vL) angetrieben ist, die proportional zur Drahtgeschwindigkeit (vG) ist.Apparatus according to claim 7, characterized in that the laying drive (30) is driven at a mean linear velocity (vL) which is proportional to the wire speed (vG). Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der Verlegeapparat (30) mit gleich bleibender mittlerer Lineargeschwindigkeit angetrieben ist.Apparatus according to claim 7 or 8, characterized in that the laying apparatus (30) is driven at a constant mean linear velocity.
EP13002797.2A 2012-06-01 2013-05-29 Wound wire coil and method and device for manufacturing the same Not-in-force EP2669228B1 (en)

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DE289216C (en)
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US3610549A (en) * 1968-07-15 1971-10-05 Sievert Electric Co Cable wind device and winding pattern
DE3809635C3 (en) * 1988-03-22 1996-06-20 Niehoff Kg Maschf Method and device for producing a package without a coil and a container produced by the method
US5209414A (en) * 1991-10-30 1993-05-11 Dana Corporation Apparatus for precisely winding a coil of wire
EP1013618A1 (en) * 1998-12-23 2000-06-28 PIRELLI CAVI E SISTEMI S.p.A. Method and apparatus for winding and unwinding a fibre element having different longitudinal portions
DE20008405U1 (en) * 2000-05-10 2001-02-22 Manfred Vogel Elmasch Bau Gmbh System for laying materials such as threads, ropes or wires on a bobbin

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DE289216C (en)
DE60038214T2 (en) 1999-12-22 2009-03-19 Nittoku Engineering K.K., Urawa Method and device for winding coils

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