EP3054049B1 - Kabelverseilmaschine - Google Patents
Kabelverseilmaschine Download PDFInfo
- Publication number
- EP3054049B1 EP3054049B1 EP16154257.6A EP16154257A EP3054049B1 EP 3054049 B1 EP3054049 B1 EP 3054049B1 EP 16154257 A EP16154257 A EP 16154257A EP 3054049 B1 EP3054049 B1 EP 3054049B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- stranding
- cable
- tailstock center
- machine according
- 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.)
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- 230000033001 locomotion Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/08—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position
- D07B3/085—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/10—Devices for taking-up or winding the finished rope or cable
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2207/00—Rope or cable making machines
- D07B2207/40—Machine components
- D07B2207/4031—Winding device
- D07B2207/4036—Winding device comprising traversing means
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/40—Aspects related to the problem to be solved or advantage related to rope making machines
- D07B2401/406—Increasing speed
Definitions
- the present invention relates to a cable stranding machine.
- the invention relates to the sector of cable stranding machines.
- the invention relates to the area of twist cable stranding machines for manufacturing strands or cords.
- single twist such type of machine can also be used for carrying out a mechanical reinforcement of a cable that has already been stranded, for example cables for providing electricity lines.
- the DIN 46395 standard which standardizes the dimensions of the spools used on cable stranding machines, requires an axial hole for coupling to a support for the spool which in relative terms is very small with respect to the weight that can be reached by the spool during collection of the cable.
- the great weight induces high mechanical stresses on all parts that are intended to support the spool, limiting the maximum speed of production that can be reached.
- the cable stranding machines on the market today can be grouped into three types, each of which solves the above mentioned drawback differently.
- a first type of cable stranding machines for small-sized spools, up to a flange diameter of 1000 mm, comprises:
- Such first type of cable stranding machines exhibit a significant limitation which is constituted by the cantilevered shaft for supporting the spool; the rotation speed of the rotor, or flyer, is in fact limited by the rotation speed beyond which the bending of the rotating shaft is considered critical.
- a second type of cable stranding machines for large-sized spools, with a flange diameter starting from 1250 mm, supports the spool between two tailstocks, as disclosed and illustrated, for example, in US2817948 and US4389838 .
- the rotor, or flyer is substituted by a substantially annular rotor, supported between two shoulders, in the internal space of which is accommodated, coaxial, the spool for winding the cable.
- the layering of the cable on the spool can be carried out either by translation of the spool in the internal space of the rotor, or with means of translation of the last pulley, for redirecting the cable toward the spool, on the rotor proper.
- the rotor is usually of the supporting type, i.e. it is structured so as to support the spool, between two tailstock centers, and part of the means for moving it.
- the rotating shaft of the spool is therefore not cantilevered, as in the first type of cable stranding machines described previously.
- a third type of cable stranding machines has a C-shaped or L-shaped rotor, or flyer, which is made rotate by a corresponding hollow driving shaft and respective support and drive means, and a spool supported by tailstocks, i.e. without a shaft passing through it; a first tailstock is supported by a first support on which are also mounted the means of driving the spool, while the second, opposite tailstock is supported by a rotating shaft passing through the hollow driving shaft of the rotor and coaxial with it, such rotating shaft being placed on an external support and on the rotor proper.
- the layering of the cable on the spool occurs by way of translation of the spool in an axial direction.
- both the support of the first tailstock and the external support of the rotating shaft which supports the second tailstock are motorized and arranged so that they slide on corresponding guides.
- Such third type of cable stranding machines combine a relatively light rotor with the rigidity and, at the same time, the agility of the tailstocks for supporting the spool.
- the rotating shaft is provided with a longitudinal groove in which a first pulley must be free to rotate to redirect the cable toward the outer part of the rotor, from which the cable is then deviated toward the spool, such first pulley being mounted on the rotor proper; such longitudinal groove, in addition to requiring precision machining, mechanically weakens the rotating shaft proper.
- the simultaneous and synchronized movement of the support of the first tailstock and of the external support of the rotating shaft that supports the second tailstock requires the fine-tuning of a complex and articulated mechanical transmission, based for example on the use in series of a plurality of universal joints or right-angle transmissions, components which in addition to attracting a cost are very delicate and costly in terms of maintenance.
- US 4 236 373 A discloses a single-twist wire stranding machine having a reciprocating flyer traversing the length of a take-up reel and rotating coaxially with respect thereto, the take-up reel being mounted within pivoting means to facilitate easy removal of the reel after it is fully wound with wire.
- Electro-mechanical means are provided for automatically controlling the uniformity of the lay length of the twisted wire by correcting for changes in the velocity of the wire being fed into the machine due to wire build-up on the reel or to reversals of the traversing flyer.
- Additional control means are provided for automatically controlling the points at which the flyer, in its reciprocating motion, reverses direction, for minimizing wire accumulations or recesses at the end flanges of the reel.
- the aim of the present invention is to provide a cable stranding machine which is capable of overcoming the above mentioned drawbacks of conventional machines.
- an object of the invention is to provide a cable stranding machine that is capable of operating at higher speeds than both annular rotor machines and machines with the spool supported in a cantilever arrangement.
- Another object of the invention is to provide a cable stranding machine that is at least as strong and efficient as conventional machines.
- Another object of the invention is to provide a cable stranding machine that is simple to assemble and less burdensome to maintain than conventional machines.
- a cable stranding machine according to the invention is generally designated, in a first embodiment thereof, with the reference numeral 10.
- the cable stranding machine 10 comprises:
- the main axis, of rotation for the rotor 11 and for the spool holder supporting means 14, shown in Figure 1 as supporting a generic spool 15, is designated with the reference letter X.
- the stranding rotor 11 comprises a tubular body 16, which is arranged so that it rotates inside a tubular jacket 17 by interposition of friction reduction means, for example bearings 18 and 19.
- the means 13 for support and translation in an axial direction of the stranding rotor 11 comprise a motorized base 20, arranged so that it can slide on a corresponding guide 21; the motorized base 20 supports the tubular jacket 17, the latter being fixed to the motorized base.
- the motorized base 20 is moved translationally by corresponding actuator means 22.
- the actuator means 22 are constituted, for example, by an electric motor 23 with belt or chain transmission 24, adapted to rotate a threaded bar 25 which is coupled with one or more complementarily threaded translation screws 26 which are fixed to the motorized base 20.
- the motor means for the rotation of the stranding rotor 11 are mounted on the motorized base 20.
- Such motor means are constituted, for example, by an electric motor 27 with transmission of the power to the rotor 11 by way of a belt or chain 28.
- the spool holder supporting means 14, of the type with tailstocks, comprise a first tailstock center 29, supported by a column-like element 30 on the opposite side with respect to the stranding rotor 11.
- the first tailstock center 29 is supported by a first tailstock center supporting shaft 31, which also supports a flywheel 32 which is adapted to turn the spool 15; the flywheel 32 is made rotate by a corresponding motor 33, for example by way of a transmission belt 34.
- the first tailstock center supporting shaft 31 can be translated axially by way of a corresponding actuator 35 for inserting and extracting the first tailstock center 29 into/out of the axial hole of the spool 15.
- the actuator 35 is constituted for example by a linear actuator of the screw and translation screw type.
- the spool holder supporting means 14 comprise a second tailstock center 36, supported by a second tailstock center supporting shaft 37 the end portion 38 of which, opposite to the second tailstock center 36, is arranged so that it rotates, on corresponding friction reduction means, within a supporting body 39, which is locked in a stable position when the rotor 11 is operative.
- the supporting body 39 and the second tailstock center supporting shaft 37 are axially perforated for the passage of filaments 40 that are adapted to be stranded by the stranding rotor 11.
- the second tailstock center supporting shaft 37 also supports a first pulley 41 for redirecting filaments of stranding cords 40 toward the cantilever pulley supporting arm 12.
- the second tailstock center supporting shaft 37 which supports the first pulley 41, rotates together with the stranding rotor 11, supporting, on the cantilever arm 12, other transmission pulleys 43 and 44, by way of adapted means for transmitting the rotary motion from the stranding rotor 11 to the second tailstock center supporting shaft 37.
- the means for transmitting rotary motion comprise an intermediate body 42 for connection between the stranding rotor 11 and the second tailstock center supporting shaft 37; the intermediate body 42 is rigidly connected to the second tailstock center supporting shaft 37 and is connected to the stranding rotor 11 by way of a prismatic coupling.
- Such prismatic coupling is constituted, for example, by a longitudinal guiding groove 46 defined on the outer surface of the intermediate body 42 and by a slider 47 which is arranged to slide in it and is fixed to the stranding rotor 11.
- the supporting body 39 is constituted by a tubular part 49, coaxial to the rotor 11 and to the two tailstock centers 29 and 36 and internally hollow for the passage of filaments 40 for stranding, and by a column-like part 50 which supports the tubular part 49 in a cantilever arrangement.
- the column-like part 50 rests on means 51 for its translation in an axial direction X.
- the means of translation 51 which are constituted for example by a screw and translation screw 52 drive unit and by a sliding base on guides 53, are adapted to make the supporting body 39 translate, and with it the second tailstock center supporting shaft 37 with the second tailstock center 36, for inserting and extracting the second tailstock center 36 into/out of the axial hole of the spool 15.
- the intermediate body 42 is beaker-shaped and is arranged so as to surround the end portion 54 of the tubular part 49 of the supporting body 39 inside which the end portion 38 of the second tailstock center supporting shaft 37 is inserted.
- the intermediate body 42 is simultaneously inserted inside the tubular body 16 of the stranding rotor 11.
- the slider 47 protrudes from the inner surface of the tubular body 16.
- the intermediate body 42 is therefore supported by the second tailstock center supporting shaft 37, which is in turn supported by the supporting body 39.
- the stranding of the filaments and the winding of the cable onto the spool 15 occur with the spool not moving in the direction of its rotation axis X, while the stranding rotor 11 rotates about the same axis X and performs a translational motion with alternating motion in the direction of the same axis X by way of the action of the means 13 for support and translation.
- Figure 2 schematically shows a first stroke limit position of the alternating translational motion of the rotor 11, while Figure 3 schematically shows the second, opposite stroke limiting position.
- the means for transmitting rotary motion from the stranding rotor 111 to the second tailstock center supporting shaft 137 are constituted by a mechanism for deviating the rotary motion of the stranding rotor 111 directly to the second tailstock center supporting shaft 137, rather than by way of an intermediate body 42 with guide 46 and slider 47 as described above for the first embodiment.
- such second tailstock center supporting shaft 137 is arranged so that it rotates, on corresponding friction reduction means, inside the supporting body 139, which is locked in a stable position when the rotor 111 is operative.
- the second tailstock center supporting shaft 137 is axially perforated for the passage of filaments 140 that are adapted to be stranded by the stranding rotor 111.
- the second tailstock center supporting shaft 137 supports the first pulley 141 for redirecting the stranding cords 140 toward the cantilever pulley supporting arm 112.
- the second tailstock center supporting shaft 137 is provided with a portion 138, opposite the tailstock center 136, which is extended along the entire length of the tubular part 149 of the supporting body 139, until it protrudes therefrom.
- the end of the portion 138 protruding from the tubular part 149 is provided with a pulley 160.
- the motor 127 which is integral with the base 120, for example by way of the tubular jacket 117, supports the rotor 111 in rotation by way of a belt 128, as already described above.
- the mechanism for deviating the rotary motion from the rotor 111 to the second tailstock center supporting shaft 137 is constituted, for example, by a second belt 161 which is adapted to transmit the rotation from a pulley 162 which is integral with the rotor 111 to an intermediate transmission shaft 163, with end transmission pulleys 165 and 166, which is in turn connected by way of a third belt 164 to the pulley 160, which is fixed at the end of the portion 138 of the second tailstock center supporting shaft 137.
- the end transmission pulley 165 i.e. the pulley whose second belt 161 is moved directly by the rotor 111, in addition to rotating, slides on the intermediate transmission shaft 163 by way of a sliding coupling, which is determined for example by the broaching of a portion of that shaft.
- the pulleys 160 and 162 and the end pulleys 165 and 166 of the intermediate transmission shaft 163 are dimensioned so that the transmission ratio is 1:1 and the rotation of the rotor 111 and of the second tailstock center supporting shaft 137 is synchronous.
- the stranding rotor 211 in addition to the pulley supporting arm 212, is also provided with at least another auxiliary arm 270, and such cantilever arms 212 and 270 support an annular flywheel 271 for containing the centrifugal forces on the pulley supporting arm 212 and on the pulleys proper.
- the one or more auxiliary arms 270 are arranged symmetrically together with the pulley supporting arm 212.
- a cable stranding machine which is capable of operating at higher speeds than both annular rotor machines and machines with the spool supported in a cantilever arrangement, thanks to the spool holder supporting means 14 of the type with tailstocks and to the light stranding rotor 11, in that it is not annular and it has a single arm in a cantilever arrangement with only two pulleys 43 and 44, differently from what is described for conventional cable stranding machines of the first and second type described above.
- a cable stranding machine which is at least as strong and efficient as conventional machines, thanks to its simplicity of construction, with no long shafts subjected to translation and to rotation, and with no articulated means for transmitting the motion between two opposing parts of the same machine, as in the third type of conventional cable stranding machines.
- a cable stranding machine which combines the rigidity of the tailstocks solution with the lightness of the stranding rotor as described above, a solution that is achieved by mounting the first, input pulley not on the rotor proper but on the second tailstock center supporting shaft, thus allowing the stranding rotor to translate in order to perform the layering of the cable on the spool, while in the known art the input pulley is mounted on the rotor and so prevents the translational movement of the entire rotor.
- Another advantage of the invention consists in that the cable stranding machine according to the invention enables the assembly of spools with hole conforming to the DIN 46395 standard.
Landscapes
- Ropes Or Cables (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Claims (10)
- Eine Kabelverseilmaschine (10) aufweisend:- einen Verseilrotor (11), der mit einem Riemenscheibenhaltearm (12) versehen ist,- Mittel (13) zum Halten und Verschieben in einer axialen Richtung des Verseilrotors (11) für das Legen des von einer Spule abgewickelten Kabels, und- Mittel (14) zum Halten einer Spulenhalterung, die von der Art mit Reitstöcken ist, die in der Betriebskonfiguration axial befestigt sind.
- Die Kabelverseilmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Verseilrotor (11) einen rohrförmigen Körper (16) aufweist, der derart angeordnet ist, dass sich dieser im Inneren einer rohrförmigen Umhüllung (17) durch die Zwischenlage von Mitteln zum Reduzieren der Reibung dreht.
- Die Kabelverseilmaschine nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (13) zum Halten und Verschieben in einer axialen Richtung des Verseilrotors (11) eine motorisierte Basis (20) aufweisen, die derart angeordnet ist, dass sich diese auf einer entsprechenden Führung (21) verschieben kann, wobei die motorisierte Basis (20) die rohrförmige Umhüllung (17) hält und die letztere an der motorisierten Basis befestigt ist.
- Die Kabelverseilmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die motorisierte Basis (20) durch entsprechende Betätigungsmittel (22) translatorisch bewegt wird.
- Die Kabelverseilmaschine nach einem oder mehreren der vorhergehenden Ansprüche 3-4, dadurch gekennzeichnet, dass Motormittel für die Drehung des Verseilrotors (11) auf der motorisierten Basis (20) befestigt sind.
- Die Kabelverseilmaschine nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (14) zum Halten einer Spulenhalterung, die von der Art mit Reitstöcken sind, eine erste Reitstockspitze (29), die von einem ersten stützenähnlichen Element (30) an der in Bezug auf den Verseilmotor (11) gegenüberliegenden Seite gehalten wird, aufweist, wobei die erste Reitstockspitze (29) von einem ersten Reitstockspitzenhalteschaft (31) gehalten wird, und eine zweite Reitstockspitze (36) aufweist, die von einem zweiten Reitstockspitzenhalteschaft (37) gehalten wird, dessen der zweiten Reitstockspitze (36) gegenüberliegender Endabschnitt (38) so angeordnet ist, dass sich dieser auf entsprechenden Reibungsreduzierungsmitteln innerhalb eines Haltekörpers (39) dreht, der sich in einer stabilen Position befindet, wenn der Rotor (11) im Betrieb ist.
- Die Kabelverseilmaschine nach Anspruch 6, dadurch gekennzeichnet, dass der erste Reitstockspitzenhalteschaft (31) mittels eines entsprechenden Aktors (35) zum Einfahren und Ausfahren der ersten Reitstockspitze (29) in/aus dem axialen Loch der Spule (15) axial verschoben werden kann.
- Die Kabelverseilmaschine nach Anspruch 6, dadurch gekennzeichnet, dass der zweite Reitstockspitzenhalteschaft (37) auch eine erste Riemenscheibe (41) für die Umlenkung der zu verseilenden Seile (40) zu dem Riemenscheibenhaltekragarm (12) hält.
- Die Kabelverseilmaschine nach Anspruch 8, dadurch gekennzeichnet, dass der zweite Reitstockspitzenhalteschaft (37), der die erste Riemenscheibe (41) hält, sich zusammen mit dem Verseilrotor (11) mittels angepasster Mittel zum Übertragen der Drehbewegung von dem Verseilrotor (11) auf den zweiten Reitstockspitzenhalteschaft (37) dreht.
- Die Kabelverseilmaschine nach Anspruch 9, dadurch gekennzeichnet, dass die Mittel zum Übertragen der Drehbewegung einen Zwischenkörper (42) für die Verbindung zwischen dem Verseilrotor (11) und dem zweiten Reitstockspitzenhalteschaft (37) aufweisen; der Zwischenkörper (42) ist fest mit dem zweiten Reitstockspitzenhalteschaft (37) verbunden und ist mit dem Verseilrotor (11) mittels einer prismatischen Kupplung verbunden.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPD20150025 | 2015-02-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3054049A1 EP3054049A1 (de) | 2016-08-10 |
EP3054049B1 true EP3054049B1 (de) | 2018-04-04 |
Family
ID=52781194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16154257.6A Active EP3054049B1 (de) | 2015-02-04 | 2016-02-04 | Kabelverseilmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3054049B1 (de) |
ES (1) | ES2671611T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108962507B (zh) * | 2018-07-11 | 2024-08-23 | 永州电力勘测设计院有限公司 | 一种方便使用的通讯电缆绞合装置 |
DE102022134610A1 (de) | 2022-12-22 | 2024-06-27 | Kabel Sterner GmbH | Abspulvorrichtung, Verseilmaschine sowie Verwendung einer Abspulvorrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817948A (en) | 1954-03-19 | 1957-12-31 | Cook Mfg Company | Wire stranding machine |
US3007534A (en) * | 1958-07-16 | 1961-11-07 | Jersey Prod Res Co | Electric cable drum for rotary drilling |
US4236373A (en) * | 1978-09-20 | 1980-12-02 | Dynamex Corporation | Traverse control system |
DE3111872A1 (de) | 1981-03-26 | 1982-10-21 | Diósgyöri Gépgyár, Miskolc | "einfachschlag-verseilmaschine" |
DE3444902A1 (de) * | 1984-12-08 | 1986-06-12 | Theodor 3004 Isernhagen Preussner | Verseilmaschinensystem |
JP2547343B2 (ja) * | 1988-08-26 | 1996-10-23 | 日本航空電子工業 株式会社 | 巻線機 |
JPH073676A (ja) * | 1991-11-22 | 1995-01-06 | Ajiro Tekko Kk | 撚線機 |
DE19614404C1 (de) | 1996-04-12 | 1997-10-02 | Kmb Kabel Maschbau Gmbh | Einfachschlag - Verseilmaschine mit offenem Verseilrotor |
ITMI20090248A1 (it) | 2009-02-23 | 2010-08-24 | Ohg Di Lesmo S P A | Macchina per produrre trefoli |
-
2016
- 2016-02-04 ES ES16154257.6T patent/ES2671611T3/es active Active
- 2016-02-04 EP EP16154257.6A patent/EP3054049B1/de active Active
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
ES2671611T3 (es) | 2018-06-07 |
EP3054049A1 (de) | 2016-08-10 |
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