EP0407855B1 - Planetary stranding machine - Google Patents
Planetary stranding machine Download PDFInfo
- Publication number
- EP0407855B1 EP0407855B1 EP90112634A EP90112634A EP0407855B1 EP 0407855 B1 EP0407855 B1 EP 0407855B1 EP 90112634 A EP90112634 A EP 90112634A EP 90112634 A EP90112634 A EP 90112634A EP 0407855 B1 EP0407855 B1 EP 0407855B1
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- European Patent Office
- Prior art keywords
- support
- pipe
- spool
- stranding
- support plates
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
- D07B3/06—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position and are spaced radially from the axis of the machine, i.e. basket or planetary-type stranding machine
Definitions
- the invention relates to a basket stranding machine with the features according to the preamble of claim 1.
- the invention is based on the object of creating a basket stranding machine of the type described at the outset, which has a much stiffer rotor and thus permits higher operating speeds.
- the support tube is provided with at least three longitudinal webs which extend in the longitudinal direction and are uniformly distributed over the circumference of the tube and are directed radially outwards, and in that the longitudinal webs are firmly connected to the support plates.
- the arrangement of such longitudinal webs, which are firmly connected to the support plates makes it possible to provide a smaller diameter for the support tube and, at the same time, to increase the overall bending stiffness of the rotor. The deflections during operation, caused by the dead weight and / or residual unbalances that cannot be compensated for, are thus reduced, so that with such a stiffened rotor, significantly higher ones Speeds can be driven and thus the production output can be increased.
- the axes of rotation of the individual coil supports which are mounted between two support plates adjacent in the longitudinal direction of the support tube, are oriented at an angle to the axis of rotation of the support tube, the bearings of the coil supports in the one support plate having a large distance and are arranged in the other support plate at a short distance from the support tube.
- the resulting inclination of the coil carrier reduces the flight circle diameter of the rotor without impairing the free rotatability of the coil carrier with respect to the rotor, so that the centrifugal forces acting on the rotor are reduced and thus the operating conditions at high rotor speeds are further improved.
- a support plate is arranged between two adjacent longitudinal webs, that the individual support plates are aligned at an angle to the support tube axis, and that the support tube-side edges on the one hand and the outer edges on the other hand of the support plates are each aligned with respect to one rotary plane run along a common circumference.
- a sensor for receiving the centrifugal force applied by the bobbin of the bobbin in question which is connected to a device for controlling the speed of the stranding basket and the take-off device for the stranded material .
- the centrifugal force of only one coil is measured, since basically all coils are wound as equally as possible.
- the bobbin with the highest operating weight is inserted into the bobbin carrier provided with the measuring point. In this way it is possible to always operate the stranding machine in the optimal speed range.
- the stranding machine is first started up to an output speed determined by the predetermined centrifugal force. Then there is a progressive increase in the remaining speed up to the maximum permissible speed, which can be maintained until the end of the stranding trip, so that overall a significant increase in production with improved quality is achieved. Broken wires are practically avoided.
- the centrifugal force can be measured without moving parts if a so-called electrical pressure cell is installed in the bearing of one of the coil carriers as a sensor.
- the measurement signal can be transmitted either via a slip ring or without contact via a transmitter.
- the take-off and the take-up device the measurement and the change of the basket speed and take-off speed can take place continuously or at predefinable time intervals.
- the machine does not require an additional selection circuit with which it would have to be set up for different types of stranded material.
- the stranding machine can first be loaded with specifically heavy stranded material, for example copper, and then with specifically lighter stranded material, for example aluminum.
- specifically heavy stranded material for example copper
- specifically lighter stranded material for example aluminum.
- the given centrifugal force as a reference variable automatically results in the basket speed that is permissible in each case. Due to the constant centrifugal force load, the machine as a whole, including the coils and coil bearings, is subjected to much less stress, so that there is much less wear here. Since, at the beginning of the stranding journey, the vehicle is driven at a lower speed, smaller drive motors can be used accordingly. Accordingly, the brakes for the stranding basket can also be dimensioned smaller.
- the sensor is arranged on the bearing of the coil carrier arranged at a large distance from the support tube in the support plate.
- a rotor 1 is rotatably supported with its two ends in bearing blocks 2 and 3.
- the bearing block 2 also contains the gearbox, which is connected to a drive motor 4.
- the rotor 1 consists essentially of a support tube 6, which is provided with four longitudinal webs 7 that run in the longitudinal direction and are evenly distributed on the tube circumference and directed radially outwards.
- the rotor is provided with a gear shield 8, which carries the necessary gear for such basket twisting machines with reverse rotation, not to be explained here, via which the individual coil carriers 9 are driven with their coils 10 in such a way that the axes of rotation of the coils 10 stay parallel to each other and also with respect to the building level 11 when rotating. With variable backward rotation of the bobbin, however, there is no parallelism.
- Supporting plates 12 are now arranged between the longitudinal webs 7, which are aligned at an angle to the axis of rotation of the support tube 6 and are firmly connected to the longitudinal webs 7.
- These support plates 12 can, as shown, be designed as flat plates or as truncated cone parts.
- the coil carriers 9 are also aligned with their axes of rotation 13 at an angle to the axis of the support tube, the axis of rotation 13 of the coil carrier being oriented perpendicular to the support plate 12.
- the drive of the bobbin 9 is tapped from the transmission shield 8 via cardan shafts 14 and transmitted to the next following bobbin on each carrier plate via chain or toothed belt drives 15, shown here only schematically.
- a total of twelve coil carriers are arranged on the rotor in an arrangement of four coil carriers in one plane of rotation.
- the stranding material running from each spool 10 is brought up to the outer circumference of the carrier tube 6 and deflected there within a rotating plane by rollers (not shown in more detail) and guided parallel to the supporting tube 6 through the bearing in the bearing block 3 to the stranding point 5.
- a sensor 16 for example in the form of a so-called pressure transducer, is arranged on the bearing of a coil carrier 9, by means of which the flying force exerted on the bearing by the coil carrier 9 with its coil 10 is detected when the rotor 1 is rotating.
- the measurement signal is picked up by means not shown here, for example a slip ring transmitter in the area of the bearing block 2, and an electronic evaluation unit 17 is connected, which in turn is connected to a speed control device 18 for the drive motor 4.
- the evaluation electronics 17 is set to a fixed centrifugal force setpoint, so that corresponding to a deviation between that measured by the transducer 16 Actual value and the specified target value, the speed of the drive motor can be changed to a specified extent.
- the speed of the drive motor 4 must be increased in accordance with the target value. Since the lay length for the stranded material should remain practically constant over the entire length, the pulling speed of the finished stranded material must accordingly be increased by a corresponding increase in the speed of the drive motor of the trigger, not shown here.
- the link to the drive motor of the take-off for the stranded material which is not shown in any more detail, is indicated by the arrow 19 for the corresponding output signal on the evaluation electronics 17.
- Such an arrangement allows the speed to be increased continuously after a low initial speed of approximately 120 rpm at the start of the stranding journey and a take-off speed of approximately 68 m / min, so that finally the maximum speed of approximately 180 rpm permissible for the machine / min is reached. Overall, this results in an average take-off speed for the finished stranded material of approximately 85 m / min and a maximum take-off speed of approximately 100 m / min.
Landscapes
- Ropes Or Cables (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Surgical Instruments (AREA)
- Centrifugal Separators (AREA)
- Wire Processing (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
Die Erfindung betrifft eine Korbverseilmaschine mit den Merkmalen entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a basket stranding machine with the features according to the preamble of
Bei Korbverseilmaschinen der vorstehend bezeichneten Art, wie sie beispielsweise aus FR-A 1 436 707, US-A-3 651 629 und DE-A-2 831 604 bekannt sind, sind an dem Tragrohr je nach Zahl der erforderlichen Spulenträger wenigstens zwei kreisförmige Platten angeordnet, in denen die Spulenträger um ihre Längsachse drehbar gehalten sind. Die Längsachse der Spulenträger ist hierbei parallel zur Rotorachse ausgerichtet, während die Drehachse der vom Spulenträger gehaltenen Spule senkrecht hierzu verläuft. Zwischen den beiden Trägerplatten sind nun gleichmäßig auf den Umfang verteilt mehrere Spulenträger angeordnet, die über ein Antriebssystem so miteinander gekoppelt sind, daß sie bei umlaufendem Rotor sich relativ zu diesem verdrehen. Dies geschieht in der Regel in der Weise, daß bei umlaufendem Rotor die Achsen der Spulen parallel zueinander und parallel zur Bodenebene ausgerichtet bleiben. Wegen der Spulenbreite müssen die Drehachsen der Spulenträger in erheblichem Abstand zum Außenumfang des Tragrohres angebracht werden, um die vorstehend beschriebene Stellung relativ zum Rotor überhaupt zu ermöglichen, so daß sich ein erheblicher Gesamtdurchmesser für den Rotor ergibt, was letztlich hinsichtlich Größe und Stabilität zu Begrenzungen führt.In basket stranding machines of the type described above, as are known, for example, from FR-A 1 436 707, US-A-3 651 629 and DE-A-2 831 604, there are at least two circular plates on the support tube, depending on the number of coil carriers required arranged in which the coil carriers are rotatably held about their longitudinal axis. The longitudinal axis of the coil carrier is aligned parallel to the rotor axis, while the axis of rotation of the coil held by the coil carrier is perpendicular to it. Between the two carrier plates, several coil carriers are now distributed evenly over the circumference and are coupled to one another via a drive system in such a way that they rotate relative to the rotor when it rotates. This usually happens in such a way that when the rotor rotates, the axes of the coils are parallel to each other and stay aligned parallel to the floor level. Because of the coil width, the axes of rotation of the coil carrier must be placed at a considerable distance from the outer circumference of the support tube in order to enable the above-described position relative to the rotor, so that there is a considerable overall diameter for the rotor, which ultimately leads to limitations in terms of size and stability .
Um den Rotor zu versteifen, wurde in DD-A-207741 vorgeschlagen, Durchmesser und Wandstärke des Tragrohres zu vergrössern. Die erzielbare Versteifung ist jedoch ungenügend.In order to stiffen the rotor, it was proposed in DD-A-207741 to increase the diameter and wall thickness of the support tube. However, the stiffening that can be achieved is insufficient.
Da wegen des erforderlichen Freiraums für die Drehbewegung des Spulenträgers einerseits und durch die Begrenzung des Gesamtdurchmessers des Rotors andererseits gewisse Grenzen einzuhalten sind, läßt sich auch der für die Stabilität des Rotors entscheidende Durchmesser des Tragrohres nicht beliebig vergrößern. Das gesamte System wird biegeschwingungsempfindlich, so daß sich auch Grenzen hinsichtlich der höchstzulässigen Drehzahl ergeben.Since due to the required clearance for the rotary movement of the coil carrier on the one hand and due to the limitation of the overall diameter of the rotor on the other hand certain limits must be observed, the diameter of the support tube, which is decisive for the stability of the rotor, cannot be increased arbitrarily. The entire system becomes sensitive to bending vibrations, so that there are also limits regarding the maximum permissible speed.
Der Erfindung liegt nun die Aufgabe zugrunde, eine Korbverseilmaschine der eingangs bezeichneten Art zu schaffen, die einen sehr viel steiferen Rotor aufweist und damit höhere Betriebsgeschwindigkeiten zuläßt.The invention is based on the object of creating a basket stranding machine of the type described at the outset, which has a much stiffer rotor and thus permits higher operating speeds.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß das Tragrohr mit wenigstens drei in Längsrichtung verlaufenden und gleichmäßig auf dem Rohrumfang verteilten und radial nach außen gerichteten Längsstegen versehen ist, und daß die Längsstege fest mit den Tragschilden verbunden sind. Durch die Anordnung derartiger, mit den Tragschilden fest verbundener Längsstege ist es möglich, für das Tragrohr einen geringeren Durchmesser vorzusehen und gleichzeitig die Biegesteifigkeit des Rotor insgesamt zu erhöhen. Die Durchbiegungen im Betrieb, verursacht durch das Eigengewicht und/oder nicht ausgleichbarer Restunwuchten wird damit reduziert, so daß mit einem derart ausgesteiften Rotor wesentlich höhere Drehzahlen gefahren werden können und somit die Produktionsleistung erhöht werden kann.This object is achieved according to the invention in that the support tube is provided with at least three longitudinal webs which extend in the longitudinal direction and are uniformly distributed over the circumference of the tube and are directed radially outwards, and in that the longitudinal webs are firmly connected to the support plates. The arrangement of such longitudinal webs, which are firmly connected to the support plates, makes it possible to provide a smaller diameter for the support tube and, at the same time, to increase the overall bending stiffness of the rotor. The deflections during operation, caused by the dead weight and / or residual unbalances that cannot be compensated for, are thus reduced, so that with such a stiffened rotor, significantly higher ones Speeds can be driven and thus the production output can be increased.
In einer besonders vorteilhaften Ausgestaltung der Erfindung ist ferner vorgesehen, daß die Drehachsen der einzelnen, zwischen zwei in Längsrichtung des Tragrohres benachbarten Tragschilden gelagerten Spulenträger unter einem Winkel zur Drehachse des Tragrohres ausgerichtet sind, wobei die Lager der Spulenträger in dem einen Tragschild mit großem Abstand und in dem anderen Tragschild mit kleinem Abstand zum Tragrohr angeordnet sind. Die hierdurch bedingte Schrägstellung der Spulenträger reduziert ohne Beeinträchtigung der freien Drehbarkeit der Spulenträger gegenüber dem Rotor den Flugkreisdurchmesser des Rotors, so daß die auf den Rotor wirkenden Fliehkräfte reduziert werden und damit die Betriebsbedingungen bei hohen Rotordrehzahlen noch verbessert werden. Ein weiterer, durch den reduzierten Flugkreisdurchmesser bedingter, besonderer Vorzug einer derartigen Korbverseilmaschine besteht darin, daß diese an jeder beliebigen Stelle im Produktionsablauf aufgestellt werden kann. Während die bisher bekannten Systeme aufgrund ihres großen Durchmessers die Anordnung einer Grube von etwa 70 cm notwendig machten, entfällt dieses Erfordernis infolge der erfindungsgemäßen Reduzierung des Flugkreisdurchmessers. Zweckmäßig ist hierbei, daß die dem Verseilpunkt zugekehrten Enden der Spulenträger in kleinem Abstand zum Tragrohr gelagert sind. Hierdurch kann das von den Spulen ablaufende Verseilgut in unmittelbarer Nähe des Tragrohres durch entsprechende Öffnungen in den Tragschilden zum Verseilpunkt geführt werden,und kann ohne Probleme an dem nachfolgenden Spulenträger vorbeigeführt werden. In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß bezogen auf jeweils eine Drehebene, jeweils zwischen zwei benachbarten Längsstegen ein Tragschild angeordnet ist, daß die einzelnen Tragschilde unter einem Winkel zur Tragrohrachse ausgerichtet sind und daß die tragrohrseitigen Kanten einerseits und die Außenkanten andererseits der Tragschilde jeweils auf einer gemeinsamen Umfangslinie verlaufen. Diese Anordnung hat den Vorteil, daß die auf den Tragschilden vorzusehenden Lagerungen für die Spulenträger einschließlich der erforderlichen Antriebe für die relative Drehung der Spulenträger zum Rotor jeweils senkrecht zur Ebene der Tragschilde ausgerichtet sind und damit die Fertigung vereinfacht ist. Darüber hinaus ist durch die Schrägstellung jedes einzelnen, einem Spulenträger zugeordneten Tragschildes eine weitere, wenn auch geringfügigere Reduzierung des Durchmessers möglich.In a particularly advantageous embodiment of the invention, it is further provided that the axes of rotation of the individual coil supports, which are mounted between two support plates adjacent in the longitudinal direction of the support tube, are oriented at an angle to the axis of rotation of the support tube, the bearings of the coil supports in the one support plate having a large distance and are arranged in the other support plate at a short distance from the support tube. The resulting inclination of the coil carrier reduces the flight circle diameter of the rotor without impairing the free rotatability of the coil carrier with respect to the rotor, so that the centrifugal forces acting on the rotor are reduced and thus the operating conditions at high rotor speeds are further improved. Another particular advantage of such a basket stranding machine, which is due to the reduced flight circle diameter, is that it can be set up at any point in the production process. While the systems known hitherto made the arrangement of a pit of about 70 cm necessary due to their large diameter, this requirement is eliminated due to the reduction in the flight circle diameter according to the invention. It is useful here that the ends of the coil carrier facing the stranding point are mounted at a short distance from the support tube. As a result, the stranding material running from the coils can be guided in the immediate vicinity of the support tube through corresponding openings in the support plates to the stranding point, and can be guided past the subsequent bobbin without problems. In a further embodiment of the invention, it is provided that a support plate is arranged between two adjacent longitudinal webs, that the individual support plates are aligned at an angle to the support tube axis, and that the support tube-side edges on the one hand and the outer edges on the other hand of the support plates are each aligned with respect to one rotary plane run along a common circumference. These The arrangement has the advantage that the bearings for the coil carriers, including the necessary drives for the relative rotation of the coil carriers to the rotor, which are to be provided on the support plates, are each oriented perpendicular to the plane of the support plates, thus simplifying production. In addition, the inclined position of each individual carrier plate assigned to a coil carrier enables a further, albeit minor, reduction in the diameter.
In weiterer vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß im Bereich wenigstens eines Spulenträgers ein Meßfühler zur Aufnahme der von der Spule des betreffenden Spulenträgers aufgebrachten Fliehkraft angeordnet ist, der mit einer Einrichtung zur Steuerung der Drehzahl des Verseilkorbes und der Abzugseinrichtung für das Verseilgut in Verbindung steht. Mit Hilfe dieser Ausgestaltung ist es möglich, zu Beginn der Verseilreise, wenn die im Verseilkorb gelagerten Spulen noch vollständig gefüllt sind, mit einer geringeren Korbdrehzahl zu fahren, dann aber mit der zunehmenden Abnahme des Wickeldurchmessers die Korbdrehzahl zu steigern. Die auf die Spulenkörper wirkende Fliehkraft ist hierbei ein Maß für die Abnahme des Wicklungsdurchmessers und stellt die Führungsgröße dar, nach der die Korbdrehzahl und die Abzugsgeschwindigkeit geregelt werden. Hierbei reicht es auch, wenn die Fliehkraft nur einer Spule gemessen wird, da grundsätzlich alle Spulen möglichst gleich bewickelt werden. Zweckmäßig ist es jedoch, wenn bei der Beladung des Verseilkorbes in den mit der Meßstelle versehenen Spulenträgers die Spule eingesetzt wird, die das höchste Einsatzgewicht aufweist. Auf diese Weise<ist es möglich, die Verseilmaschine immer im optimalen Drehzahlbereich zu betreiben. Die Verseilmaschine wird zunächst auf eine durch die vorgegebene Fliehkraft bestimmte Ausgangsdrehzahl angefahren. Danach ergibt sich für die restliche Drehzahl ein progressiver Anstieg bis zur maximal zulässigen Drehzahl, die bis zum Ende der Verseilreise eingehalten werden kann, so daß insgesamt eine erhebliche Produktionssteigerung bei verbesserter Qualität erzielt wird. Drahtbrüche werden praktisch vermieden. Die Messung der Fliehkraft kann ohne bewegliche Teile erfolgen, wenn als Meßfühler eine sogenannte elektrische Druckmeßdose im Lager eines der Spulenträger eingebaut wird. Die Übertragung des Meßsignals kann hierbei entweder über einen Schleifring oder berührungslos über einen Sender erfolgen. Je nach Art der für die Verseilmaschine, den Abzug und die Aufwicklungsvorrichtung eingesetzten Antriebe,können hierbei die Messung und die Veränderung von Korbdrehzahl und Abzugsgeschwindigkeit kontinuierlich oder aber auch in vorgebbaren Zeitintervallen erfolgen.In a further advantageous embodiment of the invention it is provided that in the area of at least one bobbin there is a sensor for receiving the centrifugal force applied by the bobbin of the bobbin in question, which is connected to a device for controlling the speed of the stranding basket and the take-off device for the stranded material . With the help of this configuration, it is possible to drive at a lower basket speed at the beginning of the stranding journey, when the coils stored in the stranding basket are still completely filled, but then to increase the basket speed with the increasing decrease in the winding diameter. The centrifugal force acting on the bobbin is a measure of the decrease in the winding diameter and represents the reference variable according to which the basket speed and the take-off speed are regulated. In this case, it is also sufficient if the centrifugal force of only one coil is measured, since basically all coils are wound as equally as possible. However, it is expedient if, when loading the stranding basket, the bobbin with the highest operating weight is inserted into the bobbin carrier provided with the measuring point. In this way it is possible to always operate the stranding machine in the optimal speed range. The stranding machine is first started up to an output speed determined by the predetermined centrifugal force. Then there is a progressive increase in the remaining speed up to the maximum permissible speed, which can be maintained until the end of the stranding trip, so that overall a significant increase in production with improved quality is achieved. Broken wires are practically avoided. The centrifugal force can be measured without moving parts if a so-called electrical pressure cell is installed in the bearing of one of the coil carriers as a sensor. The measurement signal can be transmitted either via a slip ring or without contact via a transmitter. Depending on the type of drives used for the stranding machine, the take-off and the take-up device, the measurement and the change of the basket speed and take-off speed can take place continuously or at predefinable time intervals.
Ein weiterer Vorteil der Erfindung besteht darin, daß die Maschine keiner zusätzlichen Auswahlschaltung bedarf, mit der sie jeweils für unterschiedliches Verseilgut einzurichten wäre. So kann ohne jegliche Umschaltungsmaßnahme die Verseilmaschine zunächst mit spezifisch schwerem Verseilgut, beispielsweise Kupfer, und anschließend mit spezifisch leichterem Verseilgut, beispielsweise Aluminium, beladen werden. Für die Regelung ist dies unerheblich, da durch die vorgegebene Fliehkraft als Führungsgröße die jeweils zulässige Korbdrehzahl sich automatisch ergibt. Aufgrund der konstanten Fliehkraftbelastung wird die Maschine insgesamt einschließlich der Spulen und Spulenlagerungen sehr viel geringer beansprucht, so daß hier ein sehr viel geringerer Verschleiß zu verzeichnen ist. Da ferner zu Beginn der Verseilreise mit einer geringeren Drehzahl gefahren wird, können dementsprechend auch kleinere Antriebsmotoren eingesetzt werden. Dementsprechend können auch die Bremsen für den Verseilkorb ebenfalls geringer dimensioniert werden. In zweckmäßiger Ausgestaltung der Erfindung ist hierbei vorgesehen, daß der Meßfühler an dem mit großem Abstand zum Tragrohr im Tragschild angeordneten Lager des Spulenträgers angeordnet ist.Another advantage of the invention is that the machine does not require an additional selection circuit with which it would have to be set up for different types of stranded material. Thus, without any switching measures, the stranding machine can first be loaded with specifically heavy stranded material, for example copper, and then with specifically lighter stranded material, for example aluminum. This is irrelevant for the control, since the given centrifugal force as a reference variable automatically results in the basket speed that is permissible in each case. Due to the constant centrifugal force load, the machine as a whole, including the coils and coil bearings, is subjected to much less stress, so that there is much less wear here. Since, at the beginning of the stranding journey, the vehicle is driven at a lower speed, smaller drive motors can be used accordingly. Accordingly, the brakes for the stranding basket can also be dimensioned smaller. In an expedient embodiment of the invention it is provided that the sensor is arranged on the bearing of the coil carrier arranged at a large distance from the support tube in the support plate.
Die Erfindung wird anhand schematischer Zeichnungen eines Ausführungsbeispieles näher erläutert. Es zeigen:
- Fig. 1
- eine Seitenansicht,
- Fig. 2
- einen Schnitt gem. der Linie II-II in Fig. 1.
- Fig. 1
- a side view,
- Fig. 2
- a cut acc. the line II-II in Fig. 1st
Bei dem dargestellten Ausführungsbeispiel ist ein Rotor 1 mit seinen beiden Enden in Lagerblöcken 2 und 3 drehbar gelagert. Der Lagerblock 2 enthält zugleich das Getriebe, das mit einem Antriebsmotor 4 in Verbindung steht. Auf der dem Rotor 1 abgekehrten Seite des Lagerblocks 3 befindet sich der Verseilpunkt 5, an dem das abgezogene Verseilgut verseilt wird.In the illustrated embodiment, a
Der Rotor 1 besteht im wesentlichen aus einem Tragrohr 6, das mit vier in Längsrichtung verlaufenden, und gleichmäßig auf dem Rohrumfang verteilten und radial nach außen gerichteten Längsstegen 7 versehen ist. Am antriebsseitigen Ende ist der Rotor mit einem Getriebeschild 8 versehen, der für derartige Korbverseilmaschinen mit Rückdrehung erforderliche, hier nicht näher zu erläuternde Getriebe trägt, über das die einzelnen Spulenträger 9 mit ihren Spulen 10 in der Weise angetrieben werden, daß die Drehachsen den Spulen 10 zueinander und auch in bezug auf die Gebäudeebene 11 beim Umlaufen parallel ausgerichtet bleiben. Bei variabler Rückdrehung der Spulenträger ist deren Parallelität allerdings nicht gegeben.The
Zwischen den Längsstegen 7 sind nun jeweils Tragschilde 12 angeordnet, die unter einem Winkel zur Drehachse des Tragrohres 6 ausgerichtet sind und fest mit den Längsstegen 7 verbunden sind. Diese Tragschilde 12 können hierbei, wie dargestellt, als ebene PLatten oder auch als Kegelstumpfteile ausgebildet sein.Supporting
Bei dem dargestellten Ausführungsbeispiel sind nur die obenund untenliegenden Spulenträger 9 mit ihren Spulen 10 dargestellt. Die dem Betrachter zugekehrten Spulenträger sind aus Gründen der einfacheren Darstellung weggelassen. Wie aus Fig. 1 ersichtlich, sind die Spulenträger 9 mit ihren Drehachsen 13 ebenfalls unter einem Winkel zur Achse des Tragrohres ausgerichtet, wobei die Drehachse 13 des Spulenträgers senkrecht zum Tragschild 12 ausgerichtet ist.In the exemplary embodiment shown, only the coil carriers 9 at the top and bottom are shown with their
Der Antrieb der Spulenträger 9 wird vom Getriebeschild 8 über Gelenkwellen 14 abgegriffen und jeweils über Kettenoder Zahnriementriebe 15, hier nur schematisch dargestellt, an jedem Tragschild auf den nächstfolgenden Spulenträger übertragen.The drive of the bobbin 9 is tapped from the transmission shield 8 via
Bei dem dargestellten Ausführungsbeispiel sind bei einer Anordnung von jeweils vier Spulenträgern in einer Drehebene insgesamt zwölf Spulenträger auf dem Rotor angeordnet. Das von jeder Spule 10 ablaufende Verseilgut wird an den Außenumfang des Trägerrohres 6 herangeführt und dort innerhalb einer Drehebene durch nicht näher dargestellte Rollen umgelenkt und parallel zum Tragrohr 6 durch die Lagerung im Lagerblock 3 hindurch zum Verseilpunkt 5 geführt.In the exemplary embodiment shown, a total of twelve coil carriers are arranged on the rotor in an arrangement of four coil carriers in one plane of rotation. The stranding material running from each
Wie in Fig. 2 schematisch angedeutet, ist am Lager eines Spulenträgers 9 ein Meßfühler 16, beispielsweise in Form einer sogenannten Druckmeßdose angeordnet, durch den die bei rotierendem Rotor 1 von dem Spulenträger 9 mit seiner Spule 10 auf das Lager ausgeübte Fliegkraft erfaßt wird. Das Meßsignal wird über hier nicht näher dargestellte Mittel beispielsweise einen Schleifringübertrager im Bereich des Lagerblocks 2 abgenommen und einer Auswerteelektronik 17 aufgeschaltet, die ihrerseits mit einer Drehzahlregeleinrichtung 18 für den Antriebsmotor 4 in Verbindung steht. Die Auswerteelektronik 17 wird hierbei auf einen festen Fliehkraft-Sollwert eingestellt, so daß entsprechend einer Abweichung zwischen dem vom Meßwertaufnehmer 16 gemessenen Ist-Wert und dem vorgegebenen Soll-Wert die Drehzahl des Antriebsmotors in vorgegebenem Maß verändert werden kann. Da mit zunehmender Verseilreise das Spulengewicht abnimmt, muß entsprechend der Soll-Wertvorgabe die Drehzahl des Antriebsmotors 4 erhöht werden. Da nun die Schlaglänge für das verseilte Gut über die gesamte Länge praktisch konstant bleiben soll, muß dementsprechend auch die Durchzugsgeschwindigkeit des fertig verseilten Gutes über eine entsprechende Erhöhung der Drehzahl des Antriebsmotors des hier nicht näher dargestellten Abzugs erhöht werden. Die Verknüpfung mit dem nicht näher dargestellten Antriebsmotors des Abzugs für das Verseilgut ist durch den Pfeil 19 für das entsprechende Ausgangssignal an der Auswerteelektronik 17 angedeutet. Eine derartige Anordnung erlaubt es, nach einer niedrigen Anfangsdrehzahl von etwa 120 U/min zu Beginn der Verseilreise und einer Abzugsgeschwindigkeit von etwa 68 m/min, die Drehzahl fortlaufend zu erhöhen, so daß schließlich die für die Maschine zulässige maximale Drehzahl von etwa 180 U/min erreicht wird. Insgesamt ergibt sich damit eine mittlere Abzugsgeschwindigkeit für das fertig verseilte Gut von etwa 85 m/min und eine maximale Abzugsgeschwindigkeit von etwa 100 m/min.As indicated schematically in FIG. 2, a
Während der erfindungsgemäße Verseilkorb mit der beschriebenen Regelung einer Fliehkraft von nur 65% ausgesetzt ist, müßte für die gleiche Produktionsleistung ohne die vorgeschlagene Regelung, d.h. einem Betrieb mit im wesentlichen konstanter Korbdrehzahl eine maximale Fliehkraftbelastung von 100% aufgenommen werden. Allein schon dieser Zahlenvergleich zeigt, daß mit dem vorgeschlagenen Regelverfahren die zu installierende Antriebsleistung, der Konstruktionsaufwand für alle Lager sowie für die Korbbremse erheblich reduziert werden können.While the stranding basket according to the invention with the described regulation is exposed to a centrifugal force of only 65%, for the same production output without the proposed regulation, i.e. an operation with an essentially constant basket speed, a maximum centrifugal force load of 100% can be absorbed. This comparison of numbers alone shows that with the proposed control method, the drive power to be installed, the design effort for all bearings and for the basket brake can be considerably reduced.
Claims (7)
- Stranding machine with a rotor (1), which has a support-pipe (6), which passes through it and which is bedded at both ends such that it can rotate, on which, as seen in a lengthwise direction, there are support plates (12) disposed separated from each other, in at least two planes of rotation, on which several spool-arms (9) with spools for a stranding-material are supported concentrically in relation to an axis of a pipe concerned such that they can rotate and be driven, wherein a support pipe (6) has at least three longitudinal webs (7) running in a lengthwise direction and which are evenly distributed around a pipe periphery concerned and are directed radially outwards, and said longitudinal webs (7) are fixedly connected to support plates concerned.
- Stranding machine in accordance with claim 1, wherein axes (13) of individual spool-arms, between two adjacent support plates (12) in a lengthwise direction of a support pipe (6), are directed at an angle to an axis of rotation of a support pipe (6), whereby bearings of spool-arms (9) are disposed in those of support plates (12) which are at a large separation from a support pipe (6) and in those others of support plates which are at a smaller distance of separation from a support pipe (6).
- Stranding machine in accordance with claim 1 or 2, wherein ends of spool-arms (9) facing a stranding-point are supported at a small distance from a support pipe (6).
- Stranding machine in accordance with claims 1 to 3, wherein a support plate (12), in relation, in each case, to a plane of rotation, is disposed between two adjacent longitudinal webs (7), and individual support plates (12) are directed at an angle in relation to an axis of a support pipe (6) and rims on a support-pipe-side and outer rims of support plates (12) in each case run on a common peripheral line.
- Stranding machine in accordance with any one of claims 1 to 4, wherein support plates (12) disposed between two adjacent longitudinal webs (7) are aligned parallel to each other and axes of rotation (13) of associated spool-arms (9) are in each case directed vertically in relation to support plates (12).
- Stranding machine in accordance with any one of claims 1 to 5, wherein a measuring sensor (16), for uptake of centrifugal force applied by a spool (9), is disposed in a zone of at least one spool-arm, a said measurement sensor being connected to a device (17) for controlling a rev rate of a carriage and of a drawoff device for a stranding material concerned.
- Stranding machine in accordance with any one of claims 1 to 6, wherein a measuring sensor (16) is disposed on a bearing, of a spool-arm (9), disposed, in a support plate (12), with a large separation from a support pipe (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3922862A DE3922862A1 (en) | 1989-07-12 | 1989-07-12 | BASKET SEWING MACHINE |
| DE3922862 | 1989-07-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0407855A2 EP0407855A2 (en) | 1991-01-16 |
| EP0407855A3 EP0407855A3 (en) | 1992-03-18 |
| EP0407855B1 true EP0407855B1 (en) | 1996-01-03 |
Family
ID=6384785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90112634A Expired - Lifetime EP0407855B1 (en) | 1989-07-12 | 1990-07-03 | Planetary stranding machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5144792A (en) |
| EP (1) | EP0407855B1 (en) |
| AT (1) | ATE132552T1 (en) |
| DE (2) | DE3922862A1 (en) |
| ES (1) | ES2084620T3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263309A (en) * | 1992-05-11 | 1993-11-23 | Southwire Company | Method of and apparatus for balancing the load of a cabling apparatus |
| JP2002500291A (en) * | 1998-01-08 | 2002-01-08 | イノカーブル、ソシエテ、アノニム | Monitoring and control device with real-time data sampling function for machines used in the cable industry |
| DE19816620C1 (en) * | 1998-04-15 | 1999-12-09 | Stolberger Maschf & Co Kg | Basket stranding machine with a drive for payout spools |
| US6948304B2 (en) * | 2003-05-11 | 2005-09-27 | Roteq Machinery Inc. | Compact universal concentric strander with take-off sheaves mounted on strander shaft |
| DE102011002182B4 (en) * | 2011-04-20 | 2013-11-28 | W.H. Küster GmbH & Co KG | Flexible stranded wire and method for producing a flexible stranded wire |
| CN104674581A (en) * | 2015-01-19 | 2015-06-03 | 吴贤文 | Electric rope braiding device |
| DE102015210572A1 (en) | 2015-06-09 | 2016-12-15 | Leoni Kabel Holding Gmbh & Co. Kg | Stranding unit for a stranding machine and basket for a stranding unit |
| CN117038209B (en) * | 2023-08-16 | 2024-04-05 | 广州电缆厂有限公司 | Cage type stranded wire device with straightening structure for electric wires and cables |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3130754A (en) * | 1960-11-30 | 1964-04-28 | American Chain & Cable Co | Push-pull cable casings |
| US3651629A (en) * | 1970-04-01 | 1972-03-28 | George R Webster | Cable forming machine |
| US4253298A (en) * | 1979-02-07 | 1981-03-03 | Ceeco Machinery Manufacturing Limited | High speed cage fly-off strander |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE207741C (en) * | ||||
| FR482311A (en) * | 1916-07-21 | 1917-03-13 | Charles Paul Bary | Controlled untwist fast cable |
| DE395778C (en) * | 1922-12-30 | 1924-05-17 | Fried Krupp Akt Ges Grusonwerk | Multiple stranding machine |
| US2674857A (en) * | 1947-10-09 | 1954-04-13 | Neyrpic Portuguesa Ltd | Reinforcement for sections of embedded conduits subject to external pressure |
| CH338383A (en) * | 1954-11-22 | 1959-05-15 | Eisen & Stahlind Ag | Recirculating units for high-speed stranding machines |
| US2873569A (en) * | 1955-12-06 | 1959-02-17 | Unternehmungen Der Eisenund St | Stranding machine arrangement |
| GB935837A (en) * | 1960-02-27 | 1963-09-04 | B & F Carter & Company Ltd | Improvements in or relating to hoses, to a method of applying a protective cover to a hose, and to core wrapping machines |
| FR1436707A (en) * | 1965-03-15 | 1966-04-29 | Stephanois Constr Meca | Improvements to wiring machines |
| US3393503A (en) * | 1966-12-20 | 1968-07-23 | Gen Cable Corp | Speed control of stranding equipment |
| US3319412A (en) * | 1965-06-14 | 1967-05-16 | Central Transformer Corp | Conductor transposing apparatus |
| NO116858B (en) * | 1966-12-03 | 1969-06-02 | Standard Tel Kabelfab As | |
| DE2831604C2 (en) * | 1978-07-19 | 1983-01-27 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Method for controlling the drive speed of a stranding machine and device for carrying out the method |
| NL8002786A (en) * | 1980-05-14 | 1981-12-16 | Nkf Groep Bv | METHOD FOR MANUFACTURING COMPLETED PRODUCTS, SUCH AS CABLES, COMPLETED PRODUCTS, SUCH AS CABLES MADE WITH THE METHOD AND APPARATUS FOR CARRYING OUT THE METHOD |
| US4903473A (en) * | 1988-09-01 | 1990-02-27 | Stolberger Maschinenfabrik Gmbh & Co Kg | Method for controlling a cage stranding machine |
-
1989
- 1989-07-12 DE DE3922862A patent/DE3922862A1/en not_active Withdrawn
-
1990
- 1990-03-05 US US07/488,097 patent/US5144792A/en not_active Expired - Fee Related
- 1990-07-03 AT AT90112634T patent/ATE132552T1/en not_active IP Right Cessation
- 1990-07-03 ES ES90112634T patent/ES2084620T3/en not_active Expired - Lifetime
- 1990-07-03 DE DE59010024T patent/DE59010024D1/en not_active Expired - Fee Related
- 1990-07-03 EP EP90112634A patent/EP0407855B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3130754A (en) * | 1960-11-30 | 1964-04-28 | American Chain & Cable Co | Push-pull cable casings |
| US3651629A (en) * | 1970-04-01 | 1972-03-28 | George R Webster | Cable forming machine |
| US4253298A (en) * | 1979-02-07 | 1981-03-03 | Ceeco Machinery Manufacturing Limited | High speed cage fly-off strander |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2084620T3 (en) | 1996-05-16 |
| DE3922862A1 (en) | 1991-01-17 |
| US5144792A (en) | 1992-09-08 |
| DE59010024D1 (en) | 1996-02-15 |
| ATE132552T1 (en) | 1996-01-15 |
| EP0407855A2 (en) | 1991-01-16 |
| EP0407855A3 (en) | 1992-03-18 |
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