EP0403620B1 - Device for placing tape around a continuous strand of material - Google Patents

Device for placing tape around a continuous strand of material Download PDF

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Publication number
EP0403620B1
EP0403620B1 EP90900155A EP90900155A EP0403620B1 EP 0403620 B1 EP0403620 B1 EP 0403620B1 EP 90900155 A EP90900155 A EP 90900155A EP 90900155 A EP90900155 A EP 90900155A EP 0403620 B1 EP0403620 B1 EP 0403620B1
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EP
European Patent Office
Prior art keywords
tape
reel
strand
tape feed
feed device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90900155A
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German (de)
French (fr)
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EP0403620A1 (en
Inventor
Rüdiger Lange
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stolberger Maschinenfabrik GmbH and Co KG
Original Assignee
Stolberger Maschinenfabrik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Stolberger Maschinenfabrik GmbH and Co KG filed Critical Stolberger Maschinenfabrik GmbH and Co KG
Priority to AT90900155T priority Critical patent/ATE92668T1/en
Publication of EP0403620A1 publication Critical patent/EP0403620A1/en
Application granted granted Critical
Publication of EP0403620B1 publication Critical patent/EP0403620B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • H01B13/08Insulating conductors or cables by winding
    • H01B13/0825Apparatus having a planetary rotation of the supply reels around the conductor or cable
    • H01B13/0841Apparatus having a planetary rotation of the supply reels around the conductor or cable the supply reel axis being arranged perpendicular to the conductor or cable axis

Definitions

  • the invention relates to a device for banding a continuous strand of material with at least one band, in particular for banding a cable, which is provided with a band supply device for the band which can be driven in rotation about the longitudinal axis of the strand.
  • Strands of material, in particular cables, are wrapped in one pass with one or two strips of paper, plastic, metal and / or fabric made of fibers or metal wires.
  • the strand of material so wound, ie banded is then provided with a plastic sheathing.
  • the plastic sheathing is applied by means of coextrusion, that is to say the banded material strand is passed through an appropriately designed extruder.
  • the band length required for banding is many times greater than the length of the strand of material, so that the entire device is stopped and as long as it has to be stopped until the empty reel is replaced by a full reel and the outgoing end of the tape is connected to the incoming end of the tape.
  • the invention has for its object to design a device of the type described above so that continuous operation and at the same time a reel change in operation is possible with a link between the end of the tape and the beginning of the tape.
  • each tape reel is provided, each of which is mounted on a reel support which is rotatably mounted independently of the tape feed device and coaxially to the material strand, in that each reel holder is assigned a releasable coupling in order to produce a rotationally fixed connection to the tape feed device is and that each bobbin is provided with guiding devices for the beginning of the tape.
  • the tape feed device consists, for example, of a rotor which rotates coaxially about the longitudinal axis of the strand and which is provided with guide and tensioning elements for the tape to be applied.
  • the throughput speed of the strand of material and the speed of the rotor determine the slope of the tape winding.
  • several tapes can be made, even from different materials in one Operation can be applied.
  • two tape reels are now provided for each type of tape, the tape running from one tape reel and being applied to the strand of material while the other tape reel is also rotating.
  • the beginning of the tape can run in from the second tape reel and is connected to the end of the tape so that the taping process can be continued without standstill.
  • the throughput speed of the strand of material on the one hand and the speed of rotation of the strip feed device on the other can be reduced over a short period of time, so that a reliable and flawless connection of the end of the strip that is running to the beginning of the strip can be effected.
  • the device can then be brought back up to its full working speed.
  • Another advantage of the invention is that the material strand also runs through when changing the belt, so that a considerably higher throughput is achieved here compared to devices in which the machine has to be stopped for the belt change.
  • the clutch is provided with a controllable starting slip, so that the associated bobbin can be specifically accelerated from the standstill to the operating speed via the drivable tape feed device. It is particularly expedient here if the clutch is designed as an electromagnetic clutch.
  • each coil carrier is provided with a brake for fixing against the machine frame. This ensures that the coil carrier remains fixed at a standstill and cannot run along due to residual frictional forces which are transmitted via the clutch.
  • the reel carriers are each provided with a position sensor which is effective in relation to the machine frame and is connected to a control device acting on the brake which, when braked, effects a predetermined alignment of the tape reel with respect to the machine frame when the reel carrier is at a standstill .
  • This design has the advantage that the reel carriers are always reliably stopped in the same orientation with respect to the machine frame when at a standstill, so that the changing of the reels can also be automated. This is done, for example, by means of appropriate storage magazines and gripping devices, which, after releasing a lock Lift the empty reel off the reel carrier and then put on a full reel.
  • the tape reel Since the strand of material to be taped is usually passed horizontally through the machine, it is expedient for the tape reel to be above the strand of material when the reel carrier is at a standstill. This makes it possible to arrange transport means for the supply of full bobbins and the removal of empty bobbins above the belting device, and to provide one or more storage magazines for full bobbins.
  • each reel carrier is provided with at least one counterweight to the tape reel.
  • the size of the weight depends on the total weight of a full spool, i.e. So it depends on the tape material used and is expediently designed so that the centrifugal forces acting on the reel carrier of the counterweight on the one hand and the tape reel on the other hand are approximately balanced when the reel is full.
  • the counterweight is designed to be slightly smaller than the mass of the full tape reel, the remaining unbalance with a full reel on the one hand and with a fully or almost completely empty reel on the other hand is still within reasonable limits, since after the end of the tape has been taken over a full reel Belt feed device is accelerated from a low speed to a higher operating speed and during this acceleration phase, strip quantities are already drawn off. As soon as a predetermined remaining quantity is present in the tape reel in operation, the speed of the tape feed device is again reduced, so that the unbalance now caused by the greater mass of the counterweight can be tolerated again with regard to the decreasing speed.
  • a two-part counterweight is arranged on the coil carrier and that the two part weights are preferably in the circumferential direction during operation an adjustment drive are mounted so as to be adjustable in opposite directions.
  • This arrangement has the advantage that the counterweight can be adjusted to any reel weight by a corresponding adjustment of the partial weights to one another, so that accordingly different strip materials can be processed without it being necessary to replace the counterweights or to attach or detach additional weights.
  • a particular advantage of this arrangement is that with the arrangement of an appropriately designed adjustment drive, the partial weights can be adjusted against each other during operation in accordance with the decrease in the coil weight, so that here the rotor formed by the coil carrier, coil and counterweight is always balanced and thus practically via the whole "trip" of a reel can be kept practically at operating speed.
  • the start-up time from the slow speed to the operating speed after commissioning a tape reel and the braking time to the low speed, which is required during the time to connect the running tape end with the incoming tape start of the next tape reel, can also be reduced.
  • the particular advantage is also that when the two partial weights are adjusted by rotating about the axis of rotation of the coil carrier, the partial weights themselves are not adjusted by centrifugal forces, so that the adjusting forces required for continuous adjustment need only be so great that the friction of the bearing of the partial weights and in the acceleration phase the acceleration forces of the partial weights must be overcome in the circumferential direction.
  • the belt feed device can be very quickly ramped up to a constant operating speed, continuous adjustment until braking shortly before the end of the belt is possible without effort, since the part weights are exposed to practically no mass acceleration in the circumferential direction.
  • the tape feed device with a Tape feed arm has a positioning device which acts on the clutch via a control device, so that in the operating position both tape reels are each held in a predetermined orientation to the tape feed arm.
  • the positioning device is expediently designed so that the two coils are aligned diametrically to one another.
  • each reel carrier is provided with a drivable tape guide which drives the tape and / or the reel at least when the beginning of the tape is threaded into the tape feed arm.
  • the tape feed device is provided with a "tape end" signal transmitter which is connected to a control device each turns on the tape guide drive of the full tape reel.
  • a corresponding control device then not only effects the synchronism of the end of the band and the beginning of the band, but also the time and location at which the end of the band and the beginning of the band can be connected to one another.
  • the tape feed device is preferably provided in the area of the tape feed arm with a stapling device which connects the running end of one tape to the tapering end of the other tape.
  • the term "stapling device" in the sense of the present invention relates to all devices with which the tape end and tape start can be connected to one another.
  • the embodiment and mode of operation are also based, for example, on the strip material used.
  • paper tapes can be connected to one another by a simple pressing process if the beginning and end of the tape are each provided with a coating of a so-called molecular adhesive.
  • the stapling device can also contain a gluing device.
  • the connection can be made by welding under the influence of heat, radiation or even ultrasound.
  • the stapling device can be designed, for example, as a spot welding device.
  • this either requires a "flying" welding device or an additional tape drive must be provided for both reels, which makes it possible to drive at least the end of the tape into a "storage loop" by appropriate acceleration, so that the downtime required for a welding process begins the welding point is given, while the tape feed device continues to rotate and the previously formed "storage loop" is removed again.
  • the tape feed arm is tubular at least in the run-up area of the tape on the material strand. This prevents the incoming belt from being twisted or caused to vibrate at high speeds by the wind resistance. It is expedient here if at least part of the tubular area is made of a transparent material.
  • a sensor for the centrifugal force acting on the bobbin is arranged on each reel, which acts via a control device on the rotary drive of the tape feed device and on the drive device effecting the passage of the material strand, so that depending on a specifiable constant value for the centrifugal force, the speed of the tape feed device and the take-off speed of the material strand is changed, the ratio of the speed of the tape feed device to the take-off speed of the material strand being kept constant in accordance with the predetermined gradient of the strapping.
  • the centrifugal force acting on the coil former in operation is a measure of the decrease in the winding diameter and represents the reference variable according to which the speed and take-off speed are regulated. This makes it possible to always operate the belt device in the optimal speed range. After an output speed determined by the predetermined centrifugal force, there is a progressive increase up to the remaining operating time maximum permissible speed, which can be maintained until the end, then the device must be braked again to low speeds so that the connection of the end of the running tape can be made with the incoming tape beginning. Overall, a significant increase in production with improved quality can thus be achieved.
  • a sensor for the centrifugal force acting on the bobbin is arranged on each reel, which acts via a control device on an adjustment drive for the counterweights that are adjustable relative to one another.
  • This arrangement has the advantage that the taping device can be driven practically unbalanced, since on the one hand the full supply reels are fully balanced and firmly connected via their coupling to the tape feeding device and that the tape reel in operation, which is also connected via its coupling to the tape feeding device is also fully balanced, since as the reel weight decreases, the two parts of the counterweight also rotate against each other, so that the weight loss of the reel is continuously compensated.
  • the banding device shown schematically in FIG. 1 has a band feed device 1 which is rotatably mounted in a machine frame 2 and can be driven in the direction of arrow 3 via a drive (not shown).
  • a strand of material 4 to be taped for example a cable, is passed through the tape feed device 1 coaxially to its axis of rotation in the direction of arrow 5.
  • the throughput speed of the material strand 4, on the one hand, and the rotational speed of the tape feed device, on the other hand are coordinated with one another in such a way that a tape 6 running in via the tape feed device 1 is wrapped in the gradient resulting from the ratio of the speed of passage of the material strand and the rotational speed of the tape feed device.
  • the device is designed so that the wrapping overlaps.
  • tapes made of non-woven fabric, plastic or metal foil, including steel tapes can also be considered as material for the tape 6.
  • the tape feed device 1 is connected to a tape feed arm 7, which is provided with guide and deflection devices 8, 9 inform of guide fingers, rollers or the like.
  • a stitching device 10 is also provided on the tape feed arm in the illustrated embodiment, which makes it possible to firmly connect the tape end running from one tape reel 11 to the incoming tape end of the other tape reel 12, so that the taping process can be carried out without interruption .
  • the type of stapling device depends on the material used and can be designed, for example, when using tapes made of paper or plastic as an adhesive device. In the case of plastics, it is also possible to design it as a welding device, while in the case of strips made of metal, a mechanical linkage by means of an embossing-punching device is expedient.
  • the two tape reels 11 and 12 are each arranged on a reel support 13 and 14, the two reel supports being rotatably supported independently of one another on the tape feed device.
  • Both the reel carrier 13 and the reel carrier 14 are each provided on their side facing away from the tape reel 11 or 12 with a counterweight 15, which in the illustrated embodiment is divided into two part weights 15 'and 15' ', the two part weights in turn the bobbin are rotatably mounted in opposite directions with respect to the axis of rotation.
  • the two spool holders 13 and 14 are each assigned a controllable coupling 16 and 17, which is designed, for example, as an electromagnetic clutch, via which the two spool holders can be connected to the rotating tape feed device independently of one another in a rotationally fixed manner.
  • the coil carriers 13 and 14 are also each provided with a braking device, for example in the form of a brake disc 18 and 19, to which a corresponding brake caliper 20 and 21 on the machine frame 2 is assigned, so that the coil carrier 13 or 14 can be set in relation to the machine frame 2.
  • a braking device for example in the form of a brake disc 18 and 19, to which a corresponding brake caliper 20 and 21 on the machine frame 2 is assigned, so that the coil carrier 13 or 14 can be set in relation to the machine frame 2.
  • the bobbin carriers 13 and 14 are also each provided with a guide device 22, which is optionally provided with a drive device, not shown here, so that the beginning of the tape of each coil can be inserted into the tape feed arm.
  • the guide device 22 of the spool 12 is associated with a tape transfer 23 attached to the rotating tape feed device, through which the tape start can be advanced to the tape feed arm 7 in the area of the stapling device 10.
  • both reel carriers 13 and 14 are each provided with a full reel, with only one reel, for example reel 11, tape 6 over the Tape feed arm 7 is applied to the strand of material 4.
  • Both spool carriers are connected in a rotationally fixed manner to the tape feed device 1 via their couplings 16 and 17, the alignment of the guide device 22 with the tape feed arm 7 or the tape transfer device 23 taking place via positioning devices 24 and 25, respectively.
  • the function and mode of operation of the positioning device 24 and 25 will be described in more detail below.
  • Each coil carrier is also connected to a signal transmitter, not shown here, which triggers the signal "end of tape” as soon as, for example, only a predetermined remaining length is present on the coil 11 in operation.
  • This signal generator then switches on a drive on the guide device 22 of the tape reel 12, which introduces the tape start into the stapling device 10 at the moment when the tape end of the reel 11 passes through the stitching device 10, so that the tape end and the beginning of the tape can be connected to one another and so an "endless belt” is applied to the material strand 4.
  • the above-mentioned signal generator reduces the speed of the tape feed device, so that this process takes place in a "creep speed" of the entire system.
  • the system is brought back up to its operating speed.
  • the clutch 16 of the reel carrier 13 is already released with the empty tape reel 11 and at the same time the brake 18, 20 is actuated, so that the reel carrier 13 can be fixed on the machine frame 2.
  • the interaction between the controllable clutch and the brake ensures that the coil carrier 13 is fixed in a predetermined position relative to the machine frame.
  • a coil lock designed in a conventional manner and known from stranding machines is released, so that the empty one Tape reel 11 can be removed and replaced by a full tape reel.
  • This bobbin changing process is expediently carried out via an automatically controlled bobbin changer.
  • the brake 18, 20 is released and at the same time the clutch 16 is activated via an appropriate start-up control, so that the reel carrier 13 is carried along by the tape feed device which is already rotating at the operating speed and is accelerated to the operating speed.
  • the spool support 13 is now fixed in its original position assigned to the tape feed arm 7 via the actuation of the clutch, so that both reel supports 13 and 14 rotate together with the tape feed device 1 as a compact unit.
  • each part weight 15 ′, 15 ′′ is rotatably mounted on its own guide ring on the reel carrier 13 or coaxially to the continuous material strand 4, so that the weight of the reel 11 in each case is adjusted by a corresponding adjustment of the two part weights or 12 can be compensated so that the two coil carriers each represent a balanced rotor.
  • a centrifugal force sensor 28 is assigned to each of the two reels 11, 12, which sensor is connected to an adjustment drive 29 for the two partial weights 15 'and 15''is connected.
  • the adjustment drive it is only necessary to ensure that the tangential accelerations acting on the counterweights 15 ', 15''are absorbed.
  • a taping system in which the strand of material 4 to be taped is still provided with a protective jacket made of a thermoplastic material by coextrusion after the taping.
  • the individual devices are only shown symbolically, the drives being drawn separately for a better understanding of the control.
  • the system essentially consists of a belt device identified by its tape feed device 1, an extruder 31, to which a cooling device 32 and a winding device 33 are assigned.
  • the material strand 4 to be taped and provided with a protective jacket is fed via an unwinding station 34.
  • the drive 35 of the strapping device, the output 36 of the extruder, the drive 37 of the winding device and the drive 38 of the unwinding device are now linked to one another via a control circuit 39, the linkage proceeding through the desired gradient ratio of the strap on the strand of material, that is to say by the ratio of the throughput speed of the strand of material to the rotational speed of the strip feed device. This value is fixed so that all drives are aligned with it.
  • the centrifugal force sensor system of the banding device 1 is identified by the dash-dotted frame 40. This system specifies the command variable of the control. Since each reel is assigned a centrifugal force sensor, as described above, there is the possibility in this connection of all drives to achieve a further increase in the performance of the system. As the weight of the tape reel in operation increases, so does the mass moment of inertia of the rotor formed from the tape feed device and both reel supports, so that the speed of the tape feed device can be increased in each case, so that the tape device can always be operated in the optimal speed range.
  • the arrangement of the tape reels with a radially aligned reel axis is particularly expedient because this not only simplifies the reel changing process, but also offers the possibility of reels to use with a large diameter, but at the same time to keep the radius of the coil carrier, which is to be defined as the rotor, that determines the moment of inertia small.
  • the axes of the tape reels can also be aligned parallel or at an angle to the axis of rotation on the tape feed device.
  • two additional bobbin supports must be provided in accordance with the number of layers.
  • the counterweight 15 lying below then has a stabilizing effect when the reel is released from the reel carrier.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Basic Packing Technique (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

A device for placing tape around a continuous strand of material, for example a cable, must be shut down in order to change the reel of tape. This limits the productivity. If the sheathed strand of material is to be provided with a protective sheath by a co-extrusion, shut-down hinders the flow of material through the extruder. In the device proposed, at least two reels of tape (11, 12) are mounted on a rotating tape feed device (1) on an individual reel carrier (13, 14) which rotates independently and coaxially with the strand of material, so that each empty reel of tape can be stopped, exchanged and brought into operation while the tape feed device (1) is still rotating. The tape can therefore be placed around the strand of material without the device being stopped. In order to change the reel of tape, it is only necessary to reduce the rotational speed of the tape feed device (1).

Description

Die Erfindung betrifft eine Einrichtung zum Bebändern eines durchlaufenden Materialstranges mit wenigstens einem Band, insbesondere zum Bebändern eines Kabels, die mit einer um die Strangslängsachse rotierend antreibbaren Bandzuführungseinrichtung für das Band versehen ist.The invention relates to a device for banding a continuous strand of material with at least one band, in particular for banding a cable, which is provided with a band supply device for the band which can be driven in rotation about the longitudinal axis of the strand.

Materialstränge, insbesondere Kabel, werden im Durchlauf mit ein oder zwei Bändern aus Papier, Kunststoff, Metall und/oder Gewebe aus Fasern oder Metalldrähten umwickelt. In vielen Einsatzfällen wird der so bewickelte, d.h. bebänderte Materialstrang anschließend noch mit einer Ummantelung aus Kunststoff versehen. Das Aufbringen der Kunststoffummantelung erfolgt im Wege der Koextrusion, d.h. der bebänderte Materialstrang wird durch einen entsprechend ausgebildeten Extruder geführt. Die zum Bebändern erforderliche Bandlänge ist um ein Vielfaches größer als die Länge des Materialstranges, so daß die gesamte Einrichtung jeweils angehalten und solange stillgesetzt werden muß, bis die leere Bandspule gegen eine volle Bandspule ausgewechselt und das ablaufende Bandende mit dem zulaufenden Bandende verbunden ist. Da während der Stillstandszeit der Extruder auf Temperatur gehalten werden muß, wurde bisher über eine Ablaßleitung während des Stillstandes das Kunststoffmaterial fortlaufend abgezogen, um so zu verhindern, daß sowohl die Kunststoffüllung im Extruder selbst als auch die bereits aufgebrachte, jedoch noch im Bereich der Extruderdüse befindliche Kunststoffummantelung infolge Überhitzung beschädigt wird. Abgesehen von den während der Stillstandszeit auftretenden erheblichen Verlusten an Kunststoffen, besteht gleichwohl die Gefahr, daß die Ummantelung infolge der erhöhten Hitzeeinwirkung während des Stillstandes Beschädigungen erhält.Strands of material, in particular cables, are wrapped in one pass with one or two strips of paper, plastic, metal and / or fabric made of fibers or metal wires. In many applications, the strand of material so wound, ie banded, is then provided with a plastic sheathing. The plastic sheathing is applied by means of coextrusion, that is to say the banded material strand is passed through an appropriately designed extruder. The band length required for banding is many times greater than the length of the strand of material, so that the entire device is stopped and as long as it has to be stopped until the empty reel is replaced by a full reel and the outgoing end of the tape is connected to the incoming end of the tape. Since the extruder must be kept at temperature during the downtime, the plastic material has been continuously withdrawn via a drain line during the downtime, so as to prevent both the plastic filling in the extruder itself and the one already applied but still located in the area of the extruder nozzle Plastic jacket is damaged due to overheating. Apart from the considerable losses of plastics that occur during the downtime, there is nevertheless the risk that the casing will be damaged as a result of the increased heat during the downtime.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der vorstehend bezeichneten Art so zu gestalten, daß ein fortlaufender Betrieb und zugleich ein Spulenwechsel im Betrieb mit Verknüpfung von Bandende und Bandanfang möglich ist.The invention has for its object to design a device of the type described above so that continuous operation and at the same time a reel change in operation is possible with a link between the end of the tape and the beginning of the tape.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß wenigstens zwei Bandspulen vorgesehen sind, die jeweils auf einem gegenüber der Bandzuführungseinrichung unabhängig und koaxial zum Materialstrang drehbar gelagerten Spulenträger gelagert sind, daß jedem Spulenträger zur Herstellung einer drehfesten Verbindung mit der Bandzuführungseinrichtung jeweils eine lösbare Kupplung zugeordnet ist und daß jeder Spulenträger mit Leiteinrichtungen für den Bandanfang versehen ist.This object is achieved in accordance with the invention in that at least two tape reels are provided, each of which is mounted on a reel support which is rotatably mounted independently of the tape feed device and coaxially to the material strand, in that each reel holder is assigned a releasable coupling in order to produce a rotationally fixed connection to the tape feed device is and that each bobbin is provided with guiding devices for the beginning of the tape.

Bei einer derartigen Einrichtung besteht die Bandzuführungseinrichtung beispielsweise aus einem Rotor, der koaxial um die Stranglängsachse rotiert und der mit Führungs- und Spannelementen für das aufzubringende Band versehen ist. Die Durchlaufgeschwindigkeit des Materialstranges und die Drehzahl des Rotors bestimmt hierbei die Steigung der Bandumwicklung. Je nach Einsatzzweck können auch mehrere Bänder, auch aus unterschiedlichen Materialien in einem Arbeitsgang aufgebracht werden. Bei der Einrichtung gemäß der Erfindung sind nun je Bandart zwei Bandspulen vorgesehen, wobei jeweils von einer Bandspule das Band abläuft und auf den Materialstrang aufgebracht wird, während die andere Bandspule mit umläuft. Durch Leiteinrichtungen wird nun bewirkt, daß beim Ablaufen des Bandendes von der in Betrieb befindlichen Bandspule von der zweiten Bandspule der Bandanfang zulaufen kann und mit dem Bandende verbunden wird, so daß ohne Stillstand der Bebänderungsvorgang weitergeführt werden kann. Je nach Art der Verbindungstechnik, mit der das Bandende mit dem Bandanfang verbunden wird, kann hierbei über einen kurzen Zeitraum die Durchlaufgeschwindigkeit des Materialstranges einerseits und die Rotationsgeschwindigkeit der Bandzuführungseinrichtung andererseits reduziert werden, so daß eine zuverläßige und einwandfreie Verbindung des ablaufenden Bandendes mit dem zulaufenden Bandanfang bewirkt werden kann. Sobald dies geschehen ist, kann dann die Einrichtung wieder auf ihre volle Arbeitsgeschwindigkeit hochgefahren werden. Dies hat insbesondere bei der Bebänderung von Materialsträngen, beispielsweise Kabeln, die nach der Bebänderung im Wege der Koextrusion mit einem thermoplastischen Material versehen werden, den Vorteil, daß es im Bereich des Extruders nicht zu einem Stillstand kommt, sondern der Materialstrang weiterhin, wenn auch mit geringerer Geschwindigkeit, durch die Extruderdüse hindurchgeführt wird. Über eine entsprechende Regelung kann dann die Extrusionsleistung des Extruders reduziert werden, gleichwohl wird jedoch eine Ummantelung mit gleichbleibender Qualität auf den Materialstrang aufgebracht. Das Ablassen von überflüssigem Kunststoff, wie es beim Extruderstillstand notwendig ist, entfällt hier ganz.In such a device, the tape feed device consists, for example, of a rotor which rotates coaxially about the longitudinal axis of the strand and which is provided with guide and tensioning elements for the tape to be applied. The throughput speed of the strand of material and the speed of the rotor determine the slope of the tape winding. Depending on the application, several tapes can be made, even from different materials in one Operation can be applied. In the device according to the invention, two tape reels are now provided for each type of tape, the tape running from one tape reel and being applied to the strand of material while the other tape reel is also rotating. By means of guiding devices it is now brought about that when the end of the tape runs out of the tape reel in operation, the beginning of the tape can run in from the second tape reel and is connected to the end of the tape so that the taping process can be continued without standstill. Depending on the type of connection technology used to connect the end of the strip to the start of the strip, the throughput speed of the strand of material on the one hand and the speed of rotation of the strip feed device on the other can be reduced over a short period of time, so that a reliable and flawless connection of the end of the strip that is running to the beginning of the strip can be effected. As soon as this has been done, the device can then be brought back up to its full working speed. This has the advantage in particular when strapping material strands, for example cables which are provided with a thermoplastic material by coextrusion after the strapping, that there is no stoppage in the area of the extruder, but the material strand continues, albeit with lower speed, is passed through the extruder nozzle. The extrusion capacity of the extruder can then be reduced by means of a corresponding regulation, however a sheathing of constant quality is applied to the material strand. The draining of superfluous plastic, as is necessary when the extruder is at a standstill, is completely eliminated here.

Ein weiterer Vorteil der Erfindung besteht darin, daß auch beim Bandwechsel der Materialstrang durchläuft, so daß hier gegenüber Einrichtungen, bei denen für den Bandwechsel die Maschine stillgesetzt werden muß, ein erheblich höherer Durchsatz erreicht wird. Beim oder nach dem Hochfahren der Bandzuführungseinrichtung auf ihre Betriebsdrehzahl wird dann die Kupplung des Spulenträgers mit der nunmehr leeren Bandspule gelöst und der Spulenträger stillgesetzt. Die leere Spule kann nunmehr während des Betriebes gegen eine volle Spule ausgetauscht werden. Nach erfolgtem Spulenwechsel wird über die Kupplung der Spulenträger wieder an die rotierende Bandzuführungseinrichtung angekoppelt, so daß wiederum eine volle Bandspule als Vorratsspule mit umläuft.Another advantage of the invention is that the material strand also runs through when changing the belt, so that a considerably higher throughput is achieved here compared to devices in which the machine has to be stopped for the belt change. When or after the tape feed device is started up to its operating speed then the coupling of the reel carrier with the now empty tape reel released and the reel carrier stopped. The empty spool can now be exchanged for a full spool during operation. After the reel has been changed, the reel carrier is coupled again to the rotating tape feed device via the coupling, so that a full reel also rotates as a supply reel.

Die Kupplung ist in einer zweckmäßigen Ausgestaltung der Erfindung mit einem steuerbaren Anlaufschlupf versehen, so daß der zugehörige Spulenträger aus dem Stillstand heraus über die antreibbare Bandzuführungseinrichtung auf Betriebsdrehzahl gezielt beschleunigt werden kann. Besonders zweckmäßig ist es hierbei, wenn die Kupplung als elektromagnetische Kupplung ausgebildet ist.In an expedient embodiment of the invention, the clutch is provided with a controllable starting slip, so that the associated bobbin can be specifically accelerated from the standstill to the operating speed via the drivable tape feed device. It is particularly expedient here if the clutch is designed as an electromagnetic clutch.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß jeder Spulenträger mit einer Bremse zur Festlegung gegenüber dem Maschinengestell versehen ist. Hierdurch ist gewährleistet, daß der Spulenträger im Stillstand fixiert bleibt und nicht durch Restreibungskräfte, die über die Kupplung übertragen werden, mitlaufen kann.In a further embodiment of the invention it is provided that each coil carrier is provided with a brake for fixing against the machine frame. This ensures that the coil carrier remains fixed at a standstill and cannot run along due to residual frictional forces which are transmitted via the clutch.

In weiterer bevorzugter Ausgestaltung ist vorgesehen, daß die Spulenträger jeweils mit einem in Bezug auf das Maschinengestell wirksamen Positionssensor versehen sind, der mit einer auf die Bremse einwirkenden Steuereinrichtung verbunden ist, die beim Abbremsen eine vorgegebene Ausrichtung der Bandspule gegenüber dem Maschinengestell bei Stillstand des Spulenträgers bewirkt. Diese Ausbildung hat den Vorteil, daß die Spulenträger im Stillstand zuverlässig immer in der gleichen Ausrichtung gegenüber dem Maschinengestell angehalten werden, so daß der Wechsel der Bandspulen ebenfalls automatisiert werden kann. Dies geschieht beispielsweise über entsprechende Vorratsmagazine und Greifeinrichtungen, die nach dem Lösen einer Verriegelung die leere Bandspule vom Spulenträger abheben und anschließend eine volle Bandspule aufsetzen. Da üblicherweise der zu bebändernde Materialstrang horizontal durch die Maschine geführt wird, ist es zweckmäßig, daß beim Stillstand des Spulenträgers die Bandspule jeweils oberhalb des Materialstranges steht. Hierdurch ist es möglich, oberhalb der Bebänderungseinrichtung Transportmittel für die Zufuhr voller Spulen und den Abzug leerer Spulen anzuordnen, sowie ein oder mehrere Vorratsmagazine für volle Bandspulen vorzusehen.In a further preferred embodiment it is provided that the reel carriers are each provided with a position sensor which is effective in relation to the machine frame and is connected to a control device acting on the brake which, when braked, effects a predetermined alignment of the tape reel with respect to the machine frame when the reel carrier is at a standstill . This design has the advantage that the reel carriers are always reliably stopped in the same orientation with respect to the machine frame when at a standstill, so that the changing of the reels can also be automated. This is done, for example, by means of appropriate storage magazines and gripping devices, which, after releasing a lock Lift the empty reel off the reel carrier and then put on a full reel. Since the strand of material to be taped is usually passed horizontally through the machine, it is expedient for the tape reel to be above the strand of material when the reel carrier is at a standstill. This makes it possible to arrange transport means for the supply of full bobbins and the removal of empty bobbins above the belting device, and to provide one or more storage magazines for full bobbins.

In vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß jeder Spulenträger mit wenigstens einem Gegengewicht zur Bandspule versehen ist. Die Größe des Gewichtes hängt einmal vom Gesamtgewicht einer vollen Spule, d.h. also von dem jeweils eingesetzten Bandmaterial ab und ist zweckmäßigerweise so ausgelegt, daß bei voller Spule die auf den Spulenträger einwirkenden Fliehkräfte des Gegengewichtes einerseits und der Bandspule andererseits in etwa ausgeglichen sind. Legt man das Gegengewicht in seiner Masse etwas kleiner aus als die Masse der vollen Bandspule, so ist die verbleibende Restunwucht bei voller Spule einerseits und bei vollständig oder nahezu vollständig entleerter Spule andererseits noch in vertretbaren Grenzen, da nach der Übernahme des Bandendes einer vollen Spule die Bandzuführungseinrichtung von einer niedrigen Drehzahl auf eine höher liegende Betriebsdrehzahl beschleunigt wird und während dieser Beschleunigungsphase bereits Bandmengen abgezogen werden. Sobald bei der in Betrieb befindlichen Bandspule eine vorgegebene Restmenge vorhanden ist, wird wiederum die Drehzahl der Bandzuführungseinrichtung reduziert, so daß die nunmehr durch die größere Masse des Gegengewichtes bewirkte Unwucht im Hinblick auf die abnehmende Drehzahl wieder tolerierbar ist.In an advantageous embodiment of the invention it is provided that each reel carrier is provided with at least one counterweight to the tape reel. The size of the weight depends on the total weight of a full spool, i.e. So it depends on the tape material used and is expediently designed so that the centrifugal forces acting on the reel carrier of the counterweight on the one hand and the tape reel on the other hand are approximately balanced when the reel is full. If the counterweight is designed to be slightly smaller than the mass of the full tape reel, the remaining unbalance with a full reel on the one hand and with a fully or almost completely empty reel on the other hand is still within reasonable limits, since after the end of the tape has been taken over a full reel Belt feed device is accelerated from a low speed to a higher operating speed and during this acceleration phase, strip quantities are already drawn off. As soon as a predetermined remaining quantity is present in the tape reel in operation, the speed of the tape feed device is again reduced, so that the unbalance now caused by the greater mass of the counterweight can be tolerated again with regard to the decreasing speed.

In einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, daß am Spulenträger jeweils ein zweiteilig ausgebildetes Gegengewicht angeordnet ist und daß die beiden Teilgewichte vorzugsweise während des Betriebes in Umfangsrichtung über einen Verstellantrieb gegenläufig zueinander verstellbar gelagert sind. Diese Anordnung hat den Vorteil, daß das Gegengewicht durch eine entsprechende Verstellung der Teilgewichte zueinander auf jedes beliebige Spulengewicht einstellbar ist, so daß dementsprechend unterschiedliche Bandmaterialien verarbeitet werden können, ohne daß es notwendig ist, die Gegengewichte auszuwechseln bzw. Zusatzgewichte anzubringen bzw. zu lösen. Ein besonderer Vorteil dieser Anordnung besteht darin, daß bei der Anordnung eines entsprechend ausgebildeten Verstellantriebes die Teilgewichte während des Betriebs entsprechend der Abnahme des Spulengewichtes gegeneinander verstellt werden können, so daß hier der durch Spulenträger, Spule und Gegengewicht gebildete Rotor immer wuchtfrei und damit praktisch über die ganze "Reise" einer Bandspule praktisch auf Betriebsdrehzahl gehalten werden kann. Die Anfahrzeit aus der Langsamdrehzahl in die Betriebsdrehzahl nach Inbetriebnahme einer Bandspule und die Bremszeit auf die niedrige Drehzahl, die während der Zeit zum Anknüpfen des ablaufenden Bandendes mit dem zulaufenden Bandanfang der nächsten Bandspule benötigt wird, kann hierbei ebenfalls reduziert werden. Der besondere Vorteil besteht ferner darin, daß bei einer Verstellung der beiden Teilgewichte durch Verdrehen um die Rotationsachse des Spulenträgers die Teilgewichte selbst durch Fliehkräfte nicht verstellt werden, so daß die für eine fortlaufende Verstellung erforderlichen Verstellkräfte nur so groß sein müssen, daß die Reibung der Lagerung der Teilgewichte und in der Beschleunigungsphase die Beschleunigungs-kräfte der Teilgewichte in Umfangsrichtung zu überwinden ist. Da bei dieser Ausführungsform die Bandzuführungseinrichtung jedoch sehr schnell auf eine dann konstante Betriebsdrehzahl hochgefahren werden kann, ist die fortlaufende Verstellung bis zum Abbremsen kurz vor Bandende ohne Kraftaufwand möglich, da die Teilgewichte praktisch keiner Massenbeschleunigung in Umfangsrichtung ausgesetzt sind.In a preferred embodiment of the invention it is provided that in each case a two-part counterweight is arranged on the coil carrier and that the two part weights are preferably in the circumferential direction during operation an adjustment drive are mounted so as to be adjustable in opposite directions. This arrangement has the advantage that the counterweight can be adjusted to any reel weight by a corresponding adjustment of the partial weights to one another, so that accordingly different strip materials can be processed without it being necessary to replace the counterweights or to attach or detach additional weights. A particular advantage of this arrangement is that with the arrangement of an appropriately designed adjustment drive, the partial weights can be adjusted against each other during operation in accordance with the decrease in the coil weight, so that here the rotor formed by the coil carrier, coil and counterweight is always balanced and thus practically via the whole "trip" of a reel can be kept practically at operating speed. The start-up time from the slow speed to the operating speed after commissioning a tape reel and the braking time to the low speed, which is required during the time to connect the running tape end with the incoming tape start of the next tape reel, can also be reduced. The particular advantage is also that when the two partial weights are adjusted by rotating about the axis of rotation of the coil carrier, the partial weights themselves are not adjusted by centrifugal forces, so that the adjusting forces required for continuous adjustment need only be so great that the friction of the bearing of the partial weights and in the acceleration phase the acceleration forces of the partial weights must be overcome in the circumferential direction. However, since in this embodiment the belt feed device can be very quickly ramped up to a constant operating speed, continuous adjustment until braking shortly before the end of the belt is possible without effort, since the part weights are exposed to practically no mass acceleration in the circumferential direction.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß die Bandzuführungseinrichtung mit einem Bandzufuhrarm versehen ist und eine Positionierungseinrichtung aufweist, die über eine Steuereinrichtung auf die Kupplung einwirkt, so daß in der Betriebsstellung beide Bandspulen jeweils in einer vorgegebenen Ausrichtung zum Bandzufuhrarm gehalten sind. Die Positioniereinrichtung ist hierbei zweckmäßigerweise so ausgebildet, daß die beiden Spulen diametral zueinander ausgerichtet sind. Somit kann nach dem Auswechseln einer leeren Bandspule gegen eine volle Bandspule über die Positioniereinrichtung durch Einwirkung auf die Ansteuerung der Kupplung der Spulenträger mit der neuen, vollen Bandspule mit seiner Leiteinrichtung genau auf den Bandzufuhrarm positioniert werden, so daß mit "Band ende" der in Betrieb befindlichen Spule der Bandanfang dem Bandzufuhrarm zugeführt werden kann und mit dem ablaufenden Bandende verknüpft werden kann.In a further advantageous embodiment of the invention it is provided that the tape feed device with a Tape feed arm is provided and has a positioning device which acts on the clutch via a control device, so that in the operating position both tape reels are each held in a predetermined orientation to the tape feed arm. The positioning device is expediently designed so that the two coils are aligned diametrically to one another. Thus, after replacing an empty tape reel with a full tape reel via the positioning device by acting on the control of the clutch, the reel carrier with the new, full tape reel with its guide device can be positioned exactly on the tape feed arm, so that the "tape end" is in operation located reel the beginning of the tape can be fed to the tape feed arm and can be linked to the end of the tape.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß jeder Spulenträger mit einer antreibbaren Bandführung versehen ist, die zumindest beim Einfädeln des Bandanfanges in den Bandzufuhrarm das Band und/oder die Spule antreibt. Hierdurch ist es möglich, den zulaufenden Bandanfang auf die Geschwindigkeit des ablaufenden Bandendes zu beschleunigen, so daß in dem Augenblick, in dem Bandende und Bandanfang miteinander verbunden werden müssen, beide Bänder sich mit gleicher Geschwindigkeit bewegen und nach Beendigung des Verbindungsvorganges das neu zulaufende Band ruckfrei weitergeführt wird. Dies hat insbesondere den Vorteil, daß die Verbindung von Bandende und Bandanfang praktisch nicht auf Zug belastet wird, so daß hier an die Festigkeit der Verbindung nur geringe Anforderungen zu stellen sind. Sobald das Band auf den zu bebändernden Materialstrang aufgebracht ist, werden hier Bandanfang und Bandende infolge der Überlappung ohnehin festgehalten.In a further embodiment of the invention it is provided that each reel carrier is provided with a drivable tape guide which drives the tape and / or the reel at least when the beginning of the tape is threaded into the tape feed arm. This makes it possible to accelerate the incoming tape start to the speed of the running tape end, so that at the moment in which the tape end and the beginning of the tape must be connected, both tapes move at the same speed and the new incoming tape jerk-free after completion of the connection process is continued. This has the particular advantage that the connection between the end of the band and the beginning of the band is practically not subjected to tension, so that only small requirements are made of the strength of the connection. As soon as the tape is applied to the strand of material to be taped, the tape start and tape end are held here anyway due to the overlap.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Bandzuführungseinrichtung mit einem Signalgeber "Bandende" versehen ist, der über eine Steuereinrichtung jeweils den Bandführungsantrieb der vollen Bandspule einschaltet. Über eine entsprechende Steuereinrichtung wird dann nicht nur der Gleichlauf von Bandende und Bandanfang bewirkt, sondern zugleich auch der Zeitpunkt und der Ort vorgegeben, an dem Bandende und Bandanfang miteinander verbunden werden können.In a further embodiment of the invention it is provided that the tape feed device is provided with a "tape end" signal transmitter which is connected to a control device each turns on the tape guide drive of the full tape reel. A corresponding control device then not only effects the synchronism of the end of the band and the beginning of the band, but also the time and location at which the end of the band and the beginning of the band can be connected to one another.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Bandzuführungseinrichtung vorzugsweise im Bereich des Bandzufuhrarmes mit einer Heftvorrichtung versehen ist, die das ablaufende Ende des einen Bandes mit dem zulaufenden Ende des anderen Bandes verbindet. Der Begriff "Heftvorrichtung" im Sinne der vorliegenden Erfindung betrifft alle Vorrichtungen, mit denen Bandende und Bandanfang miteinander verbunden werden können. Ausführungsform und Arbeitsweise richten sich zum Beispiel auch nach dem verwendeten Bandmaterial. So können Papierbänder durch einen einfachen Preßvorgang miteinander verbunden werden, wenn jeweils Bandanfang und Bandende mit einer Beschichtung eines sogenannten Molekularklebers versehen sind. Die Heftvorrichtung kann jedoch außer der Preßeinrichtung auch eine Beleimungseinrichtung enthalten. Bei der Verarbeitung von Bändern aus einem thermoplastischen Material kann die Verbindung durch ein Verschweißen unter dem Einfluß von Wärme, Strahlung oder auch Ultraschall erfolgen. Für Bänder aus Metall kann die Heftvorrichtung beispielsweise als Punktschweißvorrichtung ausgebildet sein. Dies setzt jedoch entweder eine "fliegende" Schweißvorrichtung voraus oder aber für beide Bandspulen muß ein zusätzlicher Bandantrieb vorgesehen sein, der es ermöglicht, zumindest das ablaufende Bandende durch entsprechende Beschleunigung in eine "Speicherschleife" zu fahren, so daß die für einen Schweißvorgang erforderliche Stillstandszeit an der Schweißstelle gegeben ist, während gleichwohl die Bandzufuhreinrichtung weiter rotiert und die zuvor gebildete "Speicherschleife" wieder abgebaut wird. Bei Bändern aus Metall, insbesondere bei Stahlbändern ist es wegen der sehr viel höhreren Festigkeit zweckmäßig, die Verbindung von Bandende und Bandanfang über einen Stanz-Präge-Vorgang auszuführen, so daß beide Bänder über eine formschlüssige Verbindung auf Zug belastbar miteinander verhakt sind.In a further embodiment of the invention it is provided that the tape feed device is preferably provided in the area of the tape feed arm with a stapling device which connects the running end of one tape to the tapering end of the other tape. The term "stapling device" in the sense of the present invention relates to all devices with which the tape end and tape start can be connected to one another. The embodiment and mode of operation are also based, for example, on the strip material used. For example, paper tapes can be connected to one another by a simple pressing process if the beginning and end of the tape are each provided with a coating of a so-called molecular adhesive. In addition to the pressing device, the stapling device can also contain a gluing device. When processing tapes from a thermoplastic material, the connection can be made by welding under the influence of heat, radiation or even ultrasound. For metal strips, the stapling device can be designed, for example, as a spot welding device. However, this either requires a "flying" welding device or an additional tape drive must be provided for both reels, which makes it possible to drive at least the end of the tape into a "storage loop" by appropriate acceleration, so that the downtime required for a welding process begins the welding point is given, while the tape feed device continues to rotate and the previously formed "storage loop" is removed again. In the case of strips made of metal, in particular steel strips, it is advisable, because of the much higher strength, to connect the end of the strip and the beginning of the strip to be carried out by means of a stamping and embossing process, so that the two strips are hooked to one another in a load-bearing manner via a positive connection.

In zweckmäßiger Ausgestaltung der Erfindung ist ferner vorgesehen, daß der Bandzufuhrarm zumindest im Auflaufbereich des Bandes am Materialstrang rohrförmig ausgebildet ist. Hierdurch wird verhindert, daß das zulaufende Band bei den hohen Drehzahlen durch den Windwiderstand verdreht oder in Schwingungen versetzt wird. Zweckmäßig ist es hierbei, wenn zumindest ein Teil des rohrförmigen Bereichs aus einem durchsichtigen Werkstoff hergestellt ist.In an advantageous embodiment of the invention, it is further provided that the tape feed arm is tubular at least in the run-up area of the tape on the material strand. This prevents the incoming belt from being twisted or caused to vibrate at high speeds by the wind resistance. It is expedient here if at least part of the tubular area is made of a transparent material.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß an jeder Bandspule ein Sensor für die auf den Spulenkörper wirkende Fliehkraft angeordnet ist, der über eine Steuereinrichtung auf den Drehantrieb der Bandzuführungseinrichtung sowie auf die den Durchlauf des Materialstranges bewirkende Antriebseinrichtung einwirkt, so daß in Abhängigkeit eines vorgebbaren konstanten Wertes für die Fliehkraft die Drehzahl der Bandzuführungseinrichtung und die Abzugsgeschwindigkeit des Materialstranges verändert wird, wobei das Verhältnis der Drehzahl der Bandzuführungseinrichtung zur Abzugsgeschwindigkeit des Materialstranges entsprechend der vorgegebenen Steigung der Bebänderung konstant gehalten wird. Durch diese Anordnung ist es möglich, bei zunächst vollen Spulen mit geringen Betriebsdrehzahlen zu fahren, dann aber mit der zunehmendem Abnahme des Wickeldurchmessers die Drehzahl der Bandzuführungseinrichtung zu steigern. Die auf den jeweils in Betrieb befindlichen Spulenkörper wirkende Fliehkraft ist hierbei ein Maß für die Abnahme des Wicklungsdurchmessers und die stellt die Führungsgröße dar, nach der Drehzahl und Abzugsgeschwindigkeit geregelt werden. Damit ist es möglich, die Bebänderungseinrichtung immer im optimalen Drehzahlbereich zu betreiben. Nach einer durch die vorgegebene Fliehkraft bestimmten Ausgangsdrehzahl ergibt sich für die restliche Betriebszeit ein progressiver Anstieg bis zur maximal zulässigen Drehzahl, die bis zum Ende eingehalten werden kann, bis dann die Vorrichtung wieder auf geringe Drehzahlen abgebremst werden muß, damit die Verbindung des ablaufenden Bandendes mit dem zulaufenden Bandanfang vorgenommen werden kann. Insgesamt läßt sich somit eine erhebliche Produktionssteigerung bei verbesserter Qualität erzielen.In a further embodiment of the invention it is provided that a sensor for the centrifugal force acting on the bobbin is arranged on each reel, which acts via a control device on the rotary drive of the tape feed device and on the drive device effecting the passage of the material strand, so that depending on a specifiable constant value for the centrifugal force, the speed of the tape feed device and the take-off speed of the material strand is changed, the ratio of the speed of the tape feed device to the take-off speed of the material strand being kept constant in accordance with the predetermined gradient of the strapping. This arrangement makes it possible to run at low operating speeds when the reels are initially full, but then to increase the speed of the tape feed device as the winding diameter decreases. The centrifugal force acting on the coil former in operation is a measure of the decrease in the winding diameter and represents the reference variable according to which the speed and take-off speed are regulated. This makes it possible to always operate the belt device in the optimal speed range. After an output speed determined by the predetermined centrifugal force, there is a progressive increase up to the remaining operating time maximum permissible speed, which can be maintained until the end, then the device must be braked again to low speeds so that the connection of the end of the running tape can be made with the incoming tape beginning. Overall, a significant increase in production with improved quality can thus be achieved.

In einer anderen vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß an jeder Bandspule ein Sensor für die auf die Spulenkörper wirkende Fliehkraft angeordnet ist, der über eine Steuereinrichtung auf einen Verstellantrieb für die gegeneinander verstellbaren Teilgegengewichte einwirkt. Diese Anordnung hat den Vorteil, daß die Bebänderungseinrichtung praktisch wuchtfrei gefahren werden kann, da zum einen die volle Vorratspulen voll ausgewuchtet über ihre Kupplung mit der Bandzuführungseinrichtung fest verbunden ist und daß die in Betrieb befindliche Bandspule, die ebenfalls über ihre Kupplung fest mit der Bandzuführungseinrichtung verbunden ist, ebenfalls voll ausgewuchtet ist, da mit abnehmendem Spulengewicht die beiden Teile des Gegengewichtes sich ebenfalls gegeneinander verdrehen, so daß hierdurch die Gewichtsabnahme der Bandspule fortlaufend kompensiert wird.In another advantageous embodiment of the invention it is provided that a sensor for the centrifugal force acting on the bobbin is arranged on each reel, which acts via a control device on an adjustment drive for the counterweights that are adjustable relative to one another. This arrangement has the advantage that the taping device can be driven practically unbalanced, since on the one hand the full supply reels are fully balanced and firmly connected via their coupling to the tape feeding device and that the tape reel in operation, which is also connected via its coupling to the tape feeding device is also fully balanced, since as the reel weight decreases, the two parts of the counterweight also rotate against each other, so that the weight loss of the reel is continuously compensated.

Die Erfindung wird anhand schematischer Zeichnungen von Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
im schematichen Längschnitt eine Einrichtung zum Bebändern eines Kabels,
Fig. 2
einen Schnitt gem. der Linie II-II in Fig. 1,
Fig. 3
die Regelung einer Bebänderungsanlage in Form eines Blockschaltbildes.
The invention is explained in more detail with reference to schematic drawings of exemplary embodiments. Show it:
Fig. 1
a schematic longitudinal section of a device for tying a cable,
Fig. 2
a cut acc. the line II-II in Fig. 1,
Fig. 3
the control of a conveyor system in the form of a block diagram.

Die in Fig. 1 schematisch dargestellte Bebänderungseinrichtung weist eine Bandzuführungseinrichtung 1 auf, die in einem Maschinengestell 2 drehbar gelagert und über einen nicht näher dargestellten Antrieb in Richtung des Pfeiles 3 antreibbar ist. Koaxial zu ihrer Drehachse wird durch die Bandzuführungseinrichtung 1 ein zu bebändernder Materialstrang 4, beispielsweise ein Kabel, in Richtung des Pfeiles 5 durchgeführt. Die Durchlaufgeschwindigkeit des Materialstranges 4 einerseits und die Rotationsgeschwindigkeit der Bandzuführungseinrichtung andererseits sind so aufeinander abgestimmt, daß ein über die Bandzuführungseinrichtung 1 zulaufendes Band 6 in der sich aus dem Verhältnis von Durchlaufgeschwindigkeit des Materialstranges und Drehgeschwindigkeit der Bandzuführungseinrichtung ergebenden Steigung umwickelt wird. Die Einrichtung ist so geführt, daß die Umwicklung überlappend erfolgt. Als Material für das Band 6 kommen hierbei neben Geweben aus natürlichem und künstlichem Fasermaterial und/oder Drähten, auch Bänder aus Fliesstoff, Kunststoff oder Metallfolie einschließlich Stahlbändern in Betracht.The banding device shown schematically in FIG. 1 has a band feed device 1 which is rotatably mounted in a machine frame 2 and can be driven in the direction of arrow 3 via a drive (not shown). A strand of material 4 to be taped, for example a cable, is passed through the tape feed device 1 coaxially to its axis of rotation in the direction of arrow 5. The throughput speed of the material strand 4, on the one hand, and the rotational speed of the tape feed device, on the other hand, are coordinated with one another in such a way that a tape 6 running in via the tape feed device 1 is wrapped in the gradient resulting from the ratio of the speed of passage of the material strand and the rotational speed of the tape feed device. The device is designed so that the wrapping overlaps. In addition to fabrics made of natural and artificial fiber material and / or wires, tapes made of non-woven fabric, plastic or metal foil, including steel tapes, can also be considered as material for the tape 6.

Die Bandzuführungseinrichtung 1 ist mit einem Bandzufuhrarm 7 verbunden, der mit Führungs- und Umlenkeinrichtungen 8, 9 inform von Führungsfingern, Rollen oder dergl. versehen ist. Für einen automatischen Betrieb ist bei dem dargestellten Ausführungsbeispiel am Bandzufuhrarm ferner eine Hefteinrichtung 10 vorgesehen, die es ermöglicht, das von der einen Bandspule 11 ablaufende Bandende mit dem zulaufenden Bandende der anderen Bandspule 12 fest zu verbinden, so daß der Bebänderungsvorgang ohne Unterbrechung durchgeführt werden kann. Die Art der Heftvorrichtung richtet sich hierbei nach dem eingesetzten Material und kann beispielsweise bei der Verwendung von Bändern aus Papier oder Kunststoff als Klebevorrichtung ausgebildet sein. Bei Kunststoffen ist auch die Ausbildung als Schweißvorrichtung möglich, während bei Bändern aus Metall eine mechanische Verknüpfung durch eine Präge-Stanz-Vorrichtung zweckmäßig ist.The tape feed device 1 is connected to a tape feed arm 7, which is provided with guide and deflection devices 8, 9 inform of guide fingers, rollers or the like. For automatic operation, a stitching device 10 is also provided on the tape feed arm in the illustrated embodiment, which makes it possible to firmly connect the tape end running from one tape reel 11 to the incoming tape end of the other tape reel 12, so that the taping process can be carried out without interruption . The type of stapling device depends on the material used and can be designed, for example, when using tapes made of paper or plastic as an adhesive device. In the case of plastics, it is also possible to design it as a welding device, while in the case of strips made of metal, a mechanical linkage by means of an embossing-punching device is expedient.

Die beiden Bandspulen 11 und 12 sind jeweils für sich auf einem Spulenträger 13 und 14 angeordnet, wobei beide Spulenträger unabhängig voneinander auf der Bandzuführungseinrichtung drehbar gelagert sind. Sowohl der Spulenträger 13 als auch der Spulenträger 14 ist auf seiner der Bandspule 11 bzw. 12 abgekehrten Seite jeweils mit einem Gegengewicht 15 versehen, das bei dem dargestellten Ausführungsbeispiel in zwei Teilgewichte 15' und 15'' unterteilt ist, wobei die beiden Teilgewichte ihrerseits auf dem Spulenträger mit bezug auf die Rotationsachse gegenläufig verdrehbar gelagert sind. Den beiden Spulenträgern 13 und 14 ist jeweils eine steuerbare Kupplung 16 und 17 zugeordnet, die beispielsweise als elektro-magnetische Kupplung ausgebildet ist, über die die beiden Spulenträger unabhängig voneinander drehfest mit der rotierenden Bandzuführungseinrichtung verbunden werden können.The two tape reels 11 and 12 are each arranged on a reel support 13 and 14, the two reel supports being rotatably supported independently of one another on the tape feed device. Both the reel carrier 13 and the reel carrier 14 are each provided on their side facing away from the tape reel 11 or 12 with a counterweight 15, which in the illustrated embodiment is divided into two part weights 15 'and 15' ', the two part weights in turn the bobbin are rotatably mounted in opposite directions with respect to the axis of rotation. The two spool holders 13 and 14 are each assigned a controllable coupling 16 and 17, which is designed, for example, as an electromagnetic clutch, via which the two spool holders can be connected to the rotating tape feed device independently of one another in a rotationally fixed manner.

Die Spulenträger 13 und 14 sind ferner jeweils mit einer Bremseinrichtung versehen, beispielsweise in Form einer Bremsscheibe 18 und 19, denen eine entsprechende Bremszange 20 und 21 am Maschinengestell 2 zugeordnet ist, so daß jeweils nach dem Lösen der Kupplung 16 oder 17 der Spulenträger 13 oder 14 in bezug auf das Maschinengestell 2 festgesetzt werden kann.The coil carriers 13 and 14 are also each provided with a braking device, for example in the form of a brake disc 18 and 19, to which a corresponding brake caliper 20 and 21 on the machine frame 2 is assigned, so that the coil carrier 13 or 14 can be set in relation to the machine frame 2.

Die Spulenträger 13 und 14 sind ferner jeweils mit einer Leiteinrichtung 22 versehen, die ggf. mit einer hier nicht näher dargestellten Antriebseinrichtung versehen ist, so daß der Bandanfang jeder Spule in den Bandzufuhrarm eingeführt werden kann. Der Leiteinrichtung 22 der Spule 12 ist eine an der rotierenden Bandzuführungseinrichtung befestigte Bandüberleitung 23 zugeordnet, durch die jeweils der Bandanfang zum Bandzufuhrarm 7 in den Bereich der Heftvorrichtung 10 vorgeschoben werden kann.The bobbin carriers 13 and 14 are also each provided with a guide device 22, which is optionally provided with a drive device, not shown here, so that the beginning of the tape of each coil can be inserted into the tape feed arm. The guide device 22 of the spool 12 is associated with a tape transfer 23 attached to the rotating tape feed device, through which the tape start can be advanced to the tape feed arm 7 in the area of the stapling device 10.

Im Betrieb sind beide Spulenträger 13 und 14 jeweils mit einer vollen Bandspule versehen, wobei nur von einer Bandspule, beispielsweise der Bandspule 11 das Band 6 über dem Bandzufuhrarm 7 auf den Materialstrang 4 aufgebracht wird. Beide Spulenträger sind über ihre Kupplungen 16 und 17 drehfest mit der Bandzuführungseinrichtung 1 verbunden, wobei die Ausrichtung der Leiteinrichtung 22 zum Bandzufuhrarm 7 bzw. dem Bandübertrager 23 über Positioniereinrichtungen 24 bzw. 25 erfolgt. Funktion und Wirkungsweise der Positioniereinrichtung 24 und 25 wird nachstehend noch näher beschrieben.In operation, both reel carriers 13 and 14 are each provided with a full reel, with only one reel, for example reel 11, tape 6 over the Tape feed arm 7 is applied to the strand of material 4. Both spool carriers are connected in a rotationally fixed manner to the tape feed device 1 via their couplings 16 and 17, the alignment of the guide device 22 with the tape feed arm 7 or the tape transfer device 23 taking place via positioning devices 24 and 25, respectively. The function and mode of operation of the positioning device 24 and 25 will be described in more detail below.

Jeder Spulenträger ist ferner mit einem hier nicht näher dargestellten Signalgeber verbunden, der das Signal "Band ende" auslöst, sobald beispielsweise auf der in Betrieb befindlichen Spule 11 nur noch eine vorgegebene Restlänge vorhanden ist. Durch diesen Signalgeber wird dann ein Antrieb an der Leiteinrichtung 22 der Bandspule 12 zugeschaltet, der den Bandanfang in dem Augenblick in die Heftvorrichtung 10 einführt, wenn das Bandende der Spule 11 die Hefteinrichtung 10 durchläuft, so daß Bandende und Bandanfang miteinander verbunden werden können und so ein "endloses Band" auf dem Materialstrang 4 aufgebracht wird.Each coil carrier is also connected to a signal transmitter, not shown here, which triggers the signal "end of tape" as soon as, for example, only a predetermined remaining length is present on the coil 11 in operation. This signal generator then switches on a drive on the guide device 22 of the tape reel 12, which introduces the tape start into the stapling device 10 at the moment when the tape end of the reel 11 passes through the stitching device 10, so that the tape end and the beginning of the tape can be connected to one another and so an "endless belt" is applied to the material strand 4.

Damit dieser Wechselvorgang zuverlässig und störungsfrei erfolgt, wird durch den vorstehend erwähnten Signalgeber die Drehzahl der Bandzuführungseinrichtung vermindert, so daß dieser Vorgang in einem "Schleichgang" der Gesamtanlage erfolgt. Sobald der Heftvorgang erfolgt ist und das Band von der Spule 12 abläuft, wird die Anlage wieder auf ihre Betriebsdrehzahl hochgefahren. Während dieses Vorgangs wird bereits die Kupplung 16 des Spulenträgers 13 mit der leeren Bandspule 11 gelöst und gleichzeitig die Bremse 18, 20 betätigt, so daß der Spulenträger 13 am Maschinengestell 2 festgesetzt werden kann. Über eine dem Maschinengestell zugeordnete Positioniereinrichtung 26 wird im Zusammenwirken zwischen der steuerbaren Kupplung und der Bremse erreicht, daß der Spulenträger 13 in einer vorgegebenen Position gegenüber dem Maschinengestell festgesetzt wird. Nunmehr wird eine in üblicher Weise ausgebildete und von Verseilmaschinen her bekannte Spulenverriegelung gelöst, so daß die leere Bandspule 11 abgenommen und durch eine volle Bandspule ersetzt werden kann. Dieser Spulenwechselvorgang erfolgt zweckmäßigerweise über einen automatisch gesteuerten Spulenwechseler.So that this changing process takes place reliably and trouble-free, the above-mentioned signal generator reduces the speed of the tape feed device, so that this process takes place in a "creep speed" of the entire system. As soon as the stitching process has taken place and the tape runs off the spool 12, the system is brought back up to its operating speed. During this process, the clutch 16 of the reel carrier 13 is already released with the empty tape reel 11 and at the same time the brake 18, 20 is actuated, so that the reel carrier 13 can be fixed on the machine frame 2. Via a positioning device 26 assigned to the machine frame, the interaction between the controllable clutch and the brake ensures that the coil carrier 13 is fixed in a predetermined position relative to the machine frame. Now a coil lock designed in a conventional manner and known from stranding machines is released, so that the empty one Tape reel 11 can be removed and replaced by a full tape reel. This bobbin changing process is expediently carried out via an automatically controlled bobbin changer.

Sobald der Spulenträger 13 mit einer vollen Bandspule versehen ist, wird die Bremse 18, 20 gelöst und gleichzeitig die Kupplung 16 über eine entsprechende Anlaufsteuerung aktiviert, so daß der Spulenträger 13 von der mit Betriebsdrehzahl bereits rotierenden Bandzuführungseinrichtung mitgenommen wird und auf die Betriebsdrehzahl beschleunigt wird. Durch die der rotierenden Bandzuführungseinrichtung zugeordnete Positioniervorrichtung 24 wird nunmehr über die Ansteuerung der Kupplung der Spulenträger 13 in seiner ursprünglichen, dem Bandzufuhrarm 7 zugeordneten Position festgesetzt, so daß wiederum beide Spulenträger 13 und 14 zusammen mit der Bandzuführungseinrichtung 1 als kompakte Einheit rotieren. Sobald dann der Signalgeber der Bandspule 12 das Signal "Band ende" auslöst, erfolgt der vorstehend beschriebene Spulenwechselvorgang in entsprechender Weise für den Spulenträger 14, der ebenfalls über eine dem Maschinengestell zugeordnete Positioniervorrichtung genau positioniert festgesetzt wird.
In Fig. 2 ist in einer Schnittdarstellung der Aufbau und die Funktionsweise der geteilten Gegengewichte 15', 15'' dargestellt. Wie aus Fig. 1 ersichtlich, ist jedes Teilgewicht 15', 15'' auf einem eigenen Führungsring auf dem Spulenträger 13 bzw. koaxial zum durchlaufenden Materialstrang 4 verdrehbar gelagert, so daß durch eine entsprechende Verstellung der beiden Teilgewichte zueinander jeweils das Gewicht der Bandspule 11 bzw. 12 ausgeglichen werden kann, so daß die beiden Spulenträger jeweils einen in sich ausgewuchteten Rotor darstellen.
As soon as the reel carrier 13 is provided with a full tape reel, the brake 18, 20 is released and at the same time the clutch 16 is activated via an appropriate start-up control, so that the reel carrier 13 is carried along by the tape feed device which is already rotating at the operating speed and is accelerated to the operating speed. By means of the positioning device 24 assigned to the rotating tape feed device, the spool support 13 is now fixed in its original position assigned to the tape feed arm 7 via the actuation of the clutch, so that both reel supports 13 and 14 rotate together with the tape feed device 1 as a compact unit. As soon as the signal transmitter of the tape reel 12 then triggers the "tape end" signal, the reel change process described above takes place in a corresponding manner for the reel carrier 14, which is likewise fixed in a precisely positioned manner by means of a positioning device assigned to the machine frame.
In Fig. 2, the structure and operation of the divided counterweights 15 ', 15''is shown in a sectional view. As can be seen from FIG. 1, each part weight 15 ′, 15 ″ is rotatably mounted on its own guide ring on the reel carrier 13 or coaxially to the continuous material strand 4, so that the weight of the reel 11 in each case is adjusted by a corresponding adjustment of the two part weights or 12 can be compensated so that the two coil carriers each represent a balanced rotor.

Beiden Bandspulen 11, 12 ist jeweils ein Fliehkraftsensor 28 zugeordnet, der auf einen Verstellantrieb 29 für die beiden Teilgewichte 15' und 15'' aufgeschaltet ist. Den beiden Teilgewichten 15', 15'' ist ebenfalls ein gemeinsamer Fliehkraftsensor 30 zugeordnet, der die sich aus dem Verstellwinkel der beiden Teilgewichte gegeneinander resultierende Ausgleichs-Fliehkraft der Teilgewichte erfaßt und der ebenfalls auf den Verstellantrieb aufgeschaltet ist, so daß sich jeder Spulenträger automatisch auswuchtet. Wird nun von der Bandspule kontinuierlich Band abgezogen, so vermindert sich die auf den Sensor 28 ausgeübte Fliehkraft. Die nunmehr sich zur resultierenden Ausgleichs-Fliehkraft ergebende Differenz wird über den Stellantrieb 29 durch eine entsprechende Vergrößerung des Verstellwinkels zwischen den beiden Teilgewichten 15' und 15'' ausgeglichen. Bei der Auslegung des Verstellantriebes ist lediglich dafür Sorge zu tragen, daß die auf die Gegengewichte 15', 15'' wirkenden Tangentialbeschleunigungen aufgenommen werden.A centrifugal force sensor 28 is assigned to each of the two reels 11, 12, which sensor is connected to an adjustment drive 29 for the two partial weights 15 'and 15''is connected. The two partial weights 15 ', 15''are also assigned a common centrifugal force sensor 30 which detects the compensating centrifugal force of the partial weights which results from the adjustment angle of the two partial weights and which is also connected to the adjustment drive so that each coil carrier is automatically balanced . If tape is now continuously withdrawn from the tape reel, the centrifugal force exerted on the sensor 28 is reduced. The difference that now results from the resulting compensating centrifugal force is compensated for by the actuator 29 by a corresponding increase in the adjustment angle between the two partial weights 15 ′ and 15 ″. When designing the adjustment drive, it is only necessary to ensure that the tangential accelerations acting on the counterweights 15 ', 15''are absorbed.

In Fig. 3 ist in Form eines Blockschaltbildes eine Bebänderungsanlage dargestellt, bei der der zu bebändernde Materialstrang 4 nach dem Bebändern noch durch Koextrusion mit einem Schutzmantel aus einem thermoplastischen Material versehen wird. Die einzelnen Einrichtungen sind nur symbolisch dargestellt, wobei die Antriebe zum besseren Verständnis der Steuerung gesondert gezeichnet sind.In Fig. 3, in the form of a block diagram, a taping system is shown, in which the strand of material 4 to be taped is still provided with a protective jacket made of a thermoplastic material by coextrusion after the taping. The individual devices are only shown symbolically, the drives being drawn separately for a better understanding of the control.

Die Anlage besteht im wesentlichen aus einer durch ihre Bandzuführungseinrichtung 1 kenntlich gemachte Bebänderungseinrichtung, einem Extruder 31, dem eine Kühleinrichtung 32 und eine Wickeleinrichtung 33 zugeordnet sind. Der zu bebändernde und mit einem Schutzmantel zu versehende Materialstrang 4 wird über eine Abwickelstation 34 zugeführt. Der Antrieb 35 der Bebänderungseinrichtung, der Abtrieb 36 des Extruders, der Antrieb 37 der Aufwickelvorrichtung sowie der Antrieb 38 der Abwickelvorrichtung sind nun über eine Steuerschaltung 39 miteinander verknüpft, wobei durch die Verknüpfung vorgegehen ist durch das gewünschte Steigungsverhältnis der Bebänderung auf dem Materialstrang, d.h. also durch das Verhältnis von Durchlaufgeschwindigkeit des Materialstranges zur Rotationsgeschwindigkeit der Bandzuführungseinrichtung. Dieser Wert ist fest vorgegeben, so daß alle Antriebe hierauf ausgerichtet sind. Über die Ansteuerung des Antriebs 36 des Extruders 31 wird darüber hinaus die Regelung des Extruders 31 in üblicher Weise angesteuert. Das Fliehkraftsensorsystem der Bebänderungseinrichtung 1 ist durch den strichpunktierten Rahmen 40 gekennzeichnet. Dieses System gibt die Führungsgröße der Steurung an.
Da jeder Bandspule, wie vorstehend beschrieben, ein Fliehkraftsensor zugeordnet ist, besteht bei dieser Verknüpfung aller Antriebe die Möglichkeit, noch eine weitere Leistungssteigerung der Anlage zu erzielen. Mit zunehmender Verminderung des Gewichtes der jeweils in Betrieb befindlichen Bandspule vermindert sich auch das Massenträgheitsmoment des aus Bandzuführungseinrichtung und beiden Spulenträgern gebildeten Rotors, so daß die Drehzahl der Bandzuführungseinrichtung jeweils gesteigert werden kann, so daß die Bebänderungseinrichtung immer im optimalen Drehzahlbereich betrieben werden kann. Die Anlage wird nach einem Spulenwechsel, d.h. der Verknüpfung eines ablaufenden Bandendes mit dem zulaufenden Bandende im "Schleichgang" zunächst auf eine durch eine vorgegebene Fliehkraft bestimmte Ausgangsdrehzahl angefahren. Danach ergibt sich dann für die restliche Spulenmenge ein progressiver Anstieg der Drehzahl bis zur maximal zulässigen Drehzahl, die solange eingehalten werden kann, bis über den entsprechenden Signalgeber an der in Betrieb befindlichen Spule das Signal "Band ende" ausgelöst wird und die Maschine wieder in den "Schleichgang" zurückgefahren wird. Insgesamt läßt sich hiermit eine erhebliche Produktionssteigerung erzielen.
The system essentially consists of a belt device identified by its tape feed device 1, an extruder 31, to which a cooling device 32 and a winding device 33 are assigned. The material strand 4 to be taped and provided with a protective jacket is fed via an unwinding station 34. The drive 35 of the strapping device, the output 36 of the extruder, the drive 37 of the winding device and the drive 38 of the unwinding device are now linked to one another via a control circuit 39, the linkage proceeding through the desired gradient ratio of the strap on the strand of material, that is to say by the ratio of the throughput speed of the strand of material to the rotational speed of the strip feed device. This value is fixed so that all drives are aligned with it. By controlling the drive 36 of the extruder 31, the control of the extruder 31 is also controlled in the usual way. The centrifugal force sensor system of the banding device 1 is identified by the dash-dotted frame 40. This system specifies the command variable of the control.
Since each reel is assigned a centrifugal force sensor, as described above, there is the possibility in this connection of all drives to achieve a further increase in the performance of the system. As the weight of the tape reel in operation increases, so does the mass moment of inertia of the rotor formed from the tape feed device and both reel supports, so that the speed of the tape feed device can be increased in each case, so that the tape device can always be operated in the optimal speed range. After a spool change, ie the connection of a running end of the strip with the incoming end of the strip in "creep speed", the system is first started up to an output speed determined by a predetermined centrifugal force. Then there is a progressive increase in speed for the remaining number of bobbins up to the maximum permissible speed, which can be maintained until the signal "end of tape" is triggered via the corresponding signal transmitter on the reel in operation and the machine returns to the "Creep speed" is reduced. Overall, a significant increase in production can be achieved with this.

Die in Fig. 1 ersichtliche Anordnung der Bandspulen mit radial ausgerichteter Spulenachse ist besonders zweckmäßig, weil hierdurch nicht nur der Spulenwechselvorgang erleichtert wird, sondern auch die Möglichkeit besteht, Bandspulen mit großem Durchmesser einzusetzen, gleichzeitig jedoch den das Massenschwungmoment bestimmenden Radius des als Rotor zu definierenden Spulenträgers klein zu halten. Die Achsen der Bandspulen können jedoch auch parallel oder unter einem Winkel zur Drehachse auf der Bandzuführungeinrichtung ausgerichtet sein. Bei einer mehrlagigen Bebänderung in nur einer Maschine müssen dann entsprechend der Zahl der Lagen jeweils zwei zusätzliche Spulenträger vorgesehen werden. Bei horizontaler Drehachse mit Wechseln der jeweils obenliegenden Spule wirkt das dann untenliegende Gegengewicht 15 stabilisierend, wenn die Bandspule vom Spulenträger gelöst ist.The arrangement of the tape reels with a radially aligned reel axis, which can be seen in FIG. 1, is particularly expedient because this not only simplifies the reel changing process, but also offers the possibility of reels to use with a large diameter, but at the same time to keep the radius of the coil carrier, which is to be defined as the rotor, that determines the moment of inertia small. However, the axes of the tape reels can also be aligned parallel or at an angle to the axis of rotation on the tape feed device. In the case of multi-layer taping in only one machine, two additional bobbin supports must be provided in accordance with the number of layers. In the case of a horizontal axis of rotation with a change of the reel lying above, the counterweight 15 lying below then has a stabilizing effect when the reel is released from the reel carrier.

Claims (15)

  1. An apparatus for placing at least one tape (23) around a continuous strand of material (4), in particular for placing tape around a cable, which is provided with a tape feed device (1) for the tape (4) which can be driven in rotation about the longitudinal axis of the strand, characterised in that at least two reels of tape (11, 12) are provided which are each mounted on a reel carrier (13, 14) which is mounted to rotate independently with respect to the tape feed device (1) and coaxially to the strand of material (4), that a detachable coupling (16, 17) is associated with each reel carrier (13, 14) in order to produce a connection to the tape feed device (1) which is resistant to rotation and that each reel carrier (13, 14) is provided with a guiding means (22) for the start of the tape.
  2. An apparatus according to Claim 1, characterised in that the coupling (16, 17) has a controllable start-up slip.
  3. An apparatus according to Claim 1 or 2, characterised in that the coupling (16, 17) is designed as an electromagnetic coupling.
  4. An apparatus according to one of Claims 1 to 3, characterised in that each reel carrier (13, 14) is provided with a brake (18, 20; 19, 21) for fixing with respect to the machine frame (2).
  5. An apparatus according to one of Claims 1 to 4, characterised in that the reel carriers (13, 14) are each provided with a position sensor (26, 27) which is effective relative to the machine frame (2), which sensor is connected to a control means which acts on the brake (18, 20; 19, 21) and which upon braking brings about predetermined alignment of the respective tape reel (11, 12) with respect to the machine frame (2) when the coil carrier (13, 14) is stopped.
  6. An apparatus according to one of Claims 1 to 5, characterised in that in the case of a strand of material (4) which runs horizontally through, when the reel carrier (13, 14) is stopped the tape reel (11, 12) is located above the strand of material (4).
  7. An apparatus according to one of Claims 1 to 6, characterised in that the reel carrier (13, 14) is provided with at least one counterweight (15) to the tape reel (11, 12).
  8. An apparatus according to Claim 7, characterised in that a two-part counterweight (15) is located on the reel carrier (13, 14) each time, and that the two partial weights (15', 15'') are preferably mounted to be adjustable in opposite directions to one another in the peripheral direction during operation by means of an adjustment drive (29).
  9. An apparatus according to one of Claims 1 to 8, characterised in that the tape feed device (1) is provided with a tape feed arm (7) and has a positioning means (24, 25) which acts, via a control means, on the coupling (16, 17) so that in the operating position both tape reels (11, 12) are each held in a predetermined alignment relative to the tape feed arm (7).
  10. An apparatus according to one of Claims 1 to 9, characterised in that each reel carrier (13, 14) is provided with a drivable tape guide which drives the tape (6) at least while the start of the tape is being threaded into the tape feed arm (7).
  11. An apparatus according to one of Claims 1 to 10, characterised in that the tape feed device (1) is provided with a "tape end" signalling means which switches on the tape guide drive of the other tape reel (11, 12) each time via a control means.
  12. An apparatus according to one of Claims 1 to 11, characterised in that the tape feed means (1) is preferably provided in the region of the tape feed arm (7) with an attaching device (10) which joins the outgoing end of one tape (6) to the incoming end of the other tape (6).
  13. An apparatus according to one of Claims 1 to 12, characterised in that the tape feed arm (7) at least in the region in which the tape (6) runs on to the strand of material (4) is tubular.
  14. An apparatus according to one of Claims 1 to 13, characterised in that a sensor (28) for the centrifugal force acting on the reel body is located on each tape reel (11, 12), which sensor acts via a control means on the rotary drive (25) of the tape feed device (1) and on the drive means (36, 37, 38) which cause the strand of material (4) to pass through, so that dependent on a predetermined constant value of the centrifugal force the speed of rotation of the tape feed device (1) and the draw-off speed of the strand of material (4) are altered, the ratio of the speed of the tape feed device (1) to the draw-off speed of the strand of material (4) being kept constant corresponding to the predetermined pitch of the application of tape.
  15. An apparatus according to one of Claims 1 to 14, characterised in that a sensor (28) for the centrifugal force acting on the reel body is located on each tape reel (11, 12), which sensor acts, via a control means, on an adjustment drive (29) for the partial counterweights (15', 15'') which are adjustable relative to one another.
EP90900155A 1989-01-03 1989-12-22 Device for placing tape around a continuous strand of material Expired - Lifetime EP0403620B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90900155T ATE92668T1 (en) 1989-01-03 1989-12-22 DEVICE FOR TAPPING A CONTINUOUS STREAM OF MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3900060 1989-01-03
DE3900060A DE3900060A1 (en) 1989-01-03 1989-01-03 DEVICE FOR TAPING A CONTINUOUS STRING OF MATERIAL

Publications (2)

Publication Number Publication Date
EP0403620A1 EP0403620A1 (en) 1990-12-27
EP0403620B1 true EP0403620B1 (en) 1993-08-04

Family

ID=6371544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900155A Expired - Lifetime EP0403620B1 (en) 1989-01-03 1989-12-22 Device for placing tape around a continuous strand of material

Country Status (5)

Country Link
US (1) US5111646A (en)
EP (1) EP0403620B1 (en)
DE (2) DE3900060A1 (en)
ES (1) ES2044544T3 (en)
WO (1) WO1990007780A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119534B (en) * 2005-04-07 2008-12-15 Compomec Oy Method and apparatus for protecting nuclear material with protective material
DE102017101646A1 (en) * 2017-01-27 2018-08-02 Fatzer Ag Drahtseilfabrik Longitudinal element, in particular for a tensile or suspension means
DE102017203161B4 (en) * 2017-02-27 2018-10-31 Leoni Kabel Gmbh braiding
JP6598413B1 (en) * 2019-06-18 2019-10-30 宮▲崎▼機械システム株式会社 Taping device and tension detecting device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1582026A (en) * 1923-05-02 1926-04-27 Western Electric Co Method of and apparatus for producing plastic articles
FR1305472A (en) * 1961-07-27 1962-10-05 Geoffroy Delore Double center head tape machine
US3273814A (en) * 1964-04-01 1966-09-20 Dowsmith Inc Rotating dispensing apparatus
DE1685843A1 (en) * 1967-05-09 1971-04-22 Kabel Metallwerke Ghh Device for winding and unwinding of mold strings
FR2116909A5 (en) * 1970-12-11 1972-07-21 Walter Marc SPOOLER
DE2903807A1 (en) * 1979-02-01 1980-08-14 Felten & Guilleaume Carlswerk METHOD FOR BALANCING A BANDWINDER, AND A BANDWINDER THEREFORE
SE425604B (en) * 1981-03-25 1982-10-18 Ericsson Telefon Ab L M DEVICE FOR WINDING OF WIRE, BANDS OR SOFTWARE FROM A STORAGE COIL IN A CIRCUIT OR THROUGH THE WIRE CENTER HALF
JPS59149277A (en) * 1983-02-17 1984-08-27 Sumitomo Electric Ind Ltd Tape winder
FR2590069B1 (en) * 1985-11-14 1987-12-11 Alsthom WRAPPER FOR HOT WRAPPING OF AN ELECTRIC CONDUCTOR
US4903473A (en) * 1988-09-01 1990-02-27 Stolberger Maschinenfabrik Gmbh & Co Kg Method for controlling a cage stranding machine

Also Published As

Publication number Publication date
DE58905176D1 (en) 1993-09-09
DE3900060A1 (en) 1990-07-05
ES2044544T3 (en) 1994-01-01
EP0403620A1 (en) 1990-12-27
WO1990007780A1 (en) 1990-07-12
US5111646A (en) 1992-05-12

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