EP2369052A2 - Maschine zum Verseilen eines Garnbündels - Google Patents

Maschine zum Verseilen eines Garnbündels Download PDF

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Publication number
EP2369052A2
EP2369052A2 EP11159578A EP11159578A EP2369052A2 EP 2369052 A2 EP2369052 A2 EP 2369052A2 EP 11159578 A EP11159578 A EP 11159578A EP 11159578 A EP11159578 A EP 11159578A EP 2369052 A2 EP2369052 A2 EP 2369052A2
Authority
EP
European Patent Office
Prior art keywords
rotor
bow
rotation
bundle
rotors
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.)
Withdrawn
Application number
EP11159578A
Other languages
English (en)
French (fr)
Other versions
EP2369052A3 (de
Inventor
Massimo Parise
Paolo Pattacini
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.)
Euroalpha Srl
Original Assignee
Euroalpha Srl
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.)
Filing date
Publication date
Application filed by Euroalpha Srl filed Critical Euroalpha Srl
Publication of EP2369052A2 publication Critical patent/EP2369052A2/de
Publication of EP2369052A3 publication Critical patent/EP2369052A3/de
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/08—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
    • D07B3/10—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 with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member
    • 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
    • D07B3/10—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 with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member
    • D07B3/106—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 with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member characterised by comprising two bows, both guiding the same bundle to impart a twist
    • 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
    • D07B2207/409—Drives

Definitions

  • the present invention relates to a machine for stranding yarns.
  • stranding consists in practice in the spiral twisting of a bundle of yarns gathered and compacted to provide a cable or rope with a typical spiral-like shape.
  • the yarns that compose this bundle may come from different spools for storing the yam in order to compose said bundle according to the desired number and geometry.
  • Stranding devices have now been known for many years which provide for the passage of the bundle of yarns inside a guide in which the bundle is drawn and inside which the bundle undergoes two torsions which, according to the torsion rate and the advancement rate thereof in the guide, determine the pitch of the spiral.
  • stranding devices of the type with a rotating bow which comprise a pair of coaxial rotors, connected to the same motor drive in order to rotate jointly, on which there are, coaxially to the rotation axis and thus in mutual alignment, respectively a first passage and a second passage, which are connected by a central passage constituted by a bow which is fixed by its ends to the two rotors and thus rotates about an axis which is coaxial to said first and second passages.
  • a motorized winding spool is arranged between the two rotors and is rotationally free from the rotors, being able to rotate independently by virtue of its own motor drive.
  • rollers In input to the winding spool there are rollers, so-called “capstans”, adapted to draw the yam before winding in order to determine the pitch.
  • the rotation of the bow allows to generate two torsions on the bundle of yarns substantially at the points where said bundle of yarns exits from the first passage in order to enter the bow, and where said bundle exits from the bow and enters the second passage.
  • an additional bow is fixed to the rotors, staggered by 180° with respect to the first bow; no bundle slides on this additional bow, which is used exclusively as a rotary counter-mass.
  • the productivity of these devices is thus determined by the maximum rotation rate that can be imposed to the bow and by the maximum rate that the bundle of yarns can withstand.
  • one solution is to arrange in series two devices (with the output of a first device associated in series with the input of the second device); in this manner four torsions are imposed on the bundle of yarns and thus, by doubling the advancement rate of the bundle of yarns, a strand is obtained which has the same pitch as the case of two torsions and normal advancement rate, virtually obtaining a doubling of productivity.
  • the first problem is linked to the fact that by using two similar devices, the yarns that form the bundle must be fed starting from a storage spool arranged instead of the winding spool of the first device, limiting considerably the possible configurations of cable that can be provided.
  • the second problem is linked to the total volume, which in practice is doubled.
  • a device for stranding a bundle of yarns has been perfected, as well as disclosed and claimed in Italian Patent No. 1361089 in the name of this same Applicant, which is of the type that comprises a guide, on which the bundle of yarns to be stranded is drawn and which comprises a first passage and a second passage, which are at least partially mutually aligned and connected by a central passage constituted by a first bow, which rotates about an axis which is coaxial to the aligned parts of such first and second passages and generates two torsions on the bundle of yarns at the points where such bundle of yarns exits from the first passage to enter the first bow, and where such bundle exits from the first bow and enters the second passage; downstream of the guide there are means for collecting the stranded bundle of yams; the particularity of this invention resides in that the guide comprises a second bow, which rotates coaxially to the axis of the first bow, is arranged within the
  • the increase in productivity in stranding machines is directly proportional to the number of torsions per minute that the machine is capable of imparting to the bundle of yarns to be stranded;
  • the main technical constraint for increasing the number of torsions per minute is the rotation rate of the motor and of the main shaft of the machine, and therefore one seeks to increase the rotation rate of the second bow in order to increase the number of torsions per minute and thus the productivity, keeping unchanged the rotation rate of the main shaft of the machine.
  • the rotation rate variation of the second bow is possible by way of a variation of the gear ratio between the pairs of gears of the two mutually opposite symmetric epicyclic gear systems that transmit the torque from the rotors that support the first outer bow to the two rotors that support the second inner bow.
  • gears moreover, makes it necessary to provide a gear case for the oil lubrication system of the gear pairs; this case, however, has to be rotated, with consequent splashing of the oil and displacement of the oil mass in rotation, causing an unwanted dynamic imbalance of the machine.
  • the aim of the present invention is to provide a machine for stranding yarns that solves the highlighted problems and at the same time is quieter.
  • an object of the present invention is to provide a stranding machine that allows to double productivity without increasing the total space occupations with respect to similar known devices having a lower productivity.
  • Another object of the present invention is to provide a stranding machine that has a higher productivity and greater operational flexibility, i.e., whose number of torsions imposed to the bundle of yarns can be modified easily.
  • Another object of the present invention is to perfect a machine for stranding yarns that can be manufactured with known systems and technologies.
  • a machine for stranding a bundle of yarns of the type that comprises a supporting frame for a first rotor and a second rotor, which are moved by same motor drive means and support an interposed first bow for the torsion of the bundle of yarns, within the space generated by the rotation of said first bow there being a second torsion bow which is arranged to rotate, in the opposite direction with respect to the first bow and about the same axis of rotation and is supported between two opposite coaxial rotors, a third rotor and a fourth rotor, which are moved by symmetric transmission means of the epicyclic type, which are interposed respectively between the adjacent first and third rotors and between the adjacent second and fourth rotors, in the space defined by the rotation of said second bow there being means for winding the bundle of stranded yarns, said machine being characterized in that said transmission means of the epicyclic type are constituted, for each pair of rotors, by
  • a machine for stranding a bundle of yarns according to the invention is generally designated by the reference numeral 10.
  • the machine 10 comprises a supporting frame 11 for first and second external rotors, respectively 12 and 13, which are moved by the same motor drive means 14, described hereinafter.
  • the first rotor 12 and the second rotor 13 support an interposed first bow 15 for the torsion of the bundle of yams; the bundle of yarns is represented schematically by the dot-and-dash line designated by the numeral 16.
  • a second torsion bow 17 is arranged so as to rotate, in the opposite direction with respect to the first bow and about the same axis of rotation, and is supported between two opposite inner coaxial rotors, a third rotor 18 and a fourth rotor 19, which are moved by symmetric transmission means of the epicyclic type, respectively 20 and 21.
  • epicyclic transmission means 20 and 21 are interposed respectively between the adjacent first rotor 12 and third rotor 18 and between the adjacent second rotor 13 and fourth rotor 19.
  • the transmission means of the epicyclic type 20 and 21 are provided, for each pair of rotors, by
  • the shaft 25 is supported by a sleeve 30, which in turn is fixed by means of screws or other threaded elements or other similar or equivalent systems to the protrusion 26 of the first rotor 12, by means of a flange 31 that extends radially from the sleeve 30.
  • the gears 23 and 24 are locked against the inner crown of an adjacent oblique bearing 32 or 33 by the screwing of an internally threaded ring, respectively 34 and 35, each of which is screwed to a corresponding thread formed on one end 25a and 25b of the shaft 25.
  • Centering means for correct arrangement with respect to the shaft 25 and the axis of rotation are associated with each one of the second gear 23 and third gear 24.
  • a first inner ring 37 surrounds the central collar 23a and 24a of the corresponding gear and has a substantially frustum-like outer surface
  • the second outer ring 38 has an inner surface which also is frustum-like, with the same inclination (same apex angle of the generatrix of the conical surface) of the outer surface of the first ring 37.
  • the smallest inside diameter of the second ring 38 is smaller than the smallest outside diameter of the first ring 37, while the largest inside diameter of the second ring 38 is greater than the smallest outside diameter of the first ring 37 but is smaller than the largest outside diameter of the first ring 37.
  • the second ring 3 8 is drawn in an axial direction against the first ring 37 by way of a plurality of threaded connections 39, which pass through corresponding holes provided in the disk or on the spokes of the gears 23 and 24 and designed to be screwed to corresponding complementarily threaded holes provided in the second ring 38.
  • the third rotor 18 and the fourth rotor 19 are mounted so that they can rotate respectively on the first rotor 12 and the second rotor 13, which are axially contiguous.
  • the path of the bundle 16 of yarns to be stranded inside the machine 10 comprises a first inlet channel 40, which is defined in the axial direction on the first external rotor 12, a pulley 41 for diverting the bundle 16 toward the first bow 15, a second pulley 42 for diverting the bundle 16 in output from the first bow 15, a first intermediate channel 43 defined on the second external rotor 13, for the passage of the bundle of yarns between the second pulley 42 and a third pulley 44, which is mounted on the fourth rotor 19, for diverting the bundle of yarns in input to the second bow 17, a second intermediate channel 45, which is contiguous to the first intermediate channel 43 but is defined on the fourth rotor 19, a fourth pulley 46, which is mounted on the third rotor 18 and is designed to divert the bundle of yarns 16 toward the collecting means, and a fifth channel 47, which is defined on the third rotor 18, between the fourth pulley 46 and the collecting means of the stranded bundle 48.
  • the means for collecting the stranded bundle 48 comprise a winding spool 49, which is motorized for rotation about its own axis and is arranged in the internal space delimited by the rotation of the second bow 17; the winding spool 49 is rotationally uncoupled from the rotors 12, 13, 18 and 19.
  • capstan rollers 50 for drawing the stranded bundle 48 are provided.
  • the first rotor 12 and the second rotor 13 are directly connected by means of corresponding transmission belts 51 and 52 to two corresponding pulleys 53 and 54, which are keyed on a common transmission shaft 55, which is connected directly to a motor 56, for example of the electric type.
  • the bundle 16 of yarns is made to pass through the bows 15 and 17 by the winding action of the spool 49.
  • the discordant rotation of the bows causes at least four torsions at the points where the bundle exits from the coaxial channels of the rotors in order to enter the guiding portions defined by the bows, or at the points where the bundle enters the channels by exiting from the bows.
  • the increase in productivity in the stranding machines is directly proportional to the number of torsions per minute that the machine is capable of imparting to the bundle of yarns to be stranded.
  • Variation of the rotation rate of the second bow 17 is possible by way of a variation of the transmission ratio between the pairs of gears 22 and 23 and 24 and 27 of the epicyclic gear system 21.
  • belts 28 and 29 instead of the pairs of gears as in the background art makes it easier to vary this transmission ratio, since the relatively easy and quick replacement of one of the planet gears 23 and 24, keeping unchanged the center distance with the first gear 22 and fourth gear 27, is possible.
  • toothed belts require less maintenance, which is a fundamental element for this type of machines.
  • the present invention has provided a stranding machine that allows to double productivity without increasing substantially the total volumes with respect to similar devices having lower productivity.
  • the invention has provided a stranding machine with higher productivity and greater operational flexibility, i.e., whose number of torsions imposed to the bundle of yarns can be changed easily.
  • the invention has provided a machine for stranding yarns that can be manufactured with known systems and technologies.
  • the materials used may be any according to requirements and to the state of the art.

Landscapes

  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)
EP11159578A 2010-03-26 2011-03-24 Maschine zum Verseilen eines Garnbündels Withdrawn EP2369052A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD20100018 ITPD20100018U1 (it) 2010-03-26 2010-03-26 Macchina per la trefolatura di un fascio di fili

Publications (2)

Publication Number Publication Date
EP2369052A2 true EP2369052A2 (de) 2011-09-28
EP2369052A3 EP2369052A3 (de) 2012-02-08

Family

ID=43741282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159578A Withdrawn EP2369052A3 (de) 2010-03-26 2011-03-24 Maschine zum Verseilen eines Garnbündels

Country Status (2)

Country Link
EP (1) EP2369052A3 (de)
IT (1) ITPD20100018U1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646724A (zh) * 2013-12-09 2014-03-19 江苏南瑞银龙电缆有限公司 一种绞线机收线安全保护装置
CN103714915A (zh) * 2014-01-21 2014-04-09 江苏汉鼎机械有限公司 束绞机及其工作方法
CN109137163A (zh) * 2018-11-05 2019-01-04 常州市万兴自控设备有限公司 一种倍捻机构及其工作方法和倍捻装置
CN109267407A (zh) * 2018-08-07 2019-01-25 泰安海岱绳网机械科技有限公司 基于速度相互匹配的捻绳装置
CN111005103A (zh) * 2019-12-17 2020-04-14 江苏兴达钢帘线股份有限公司 一种四倍捻新型捻股机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775314B (zh) * 2015-03-27 2018-02-02 上海派菲特机械有限公司 一体式捻股合绳机及其制绳方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1690373A (en) * 1924-11-14 1928-11-06 Western Electric Co Method of and apparatus for twisting strands
GB1145261A (en) * 1965-01-13 1969-03-12 Gunnar Heggen Hansen Improvements in or relating to twisters or bunchers
FR2432065A1 (fr) * 1978-07-28 1980-02-22 Eurocable Machine a multiples torsions pour toronnage de cable, et notamment a quadruple torsion
EP0378534B1 (de) * 1988-06-01 1993-07-14 N.V. Bekaert S.A. Aufbau eines stahlcords mit hoher zugfestigkeit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646724A (zh) * 2013-12-09 2014-03-19 江苏南瑞银龙电缆有限公司 一种绞线机收线安全保护装置
CN103714915A (zh) * 2014-01-21 2014-04-09 江苏汉鼎机械有限公司 束绞机及其工作方法
CN109267407A (zh) * 2018-08-07 2019-01-25 泰安海岱绳网机械科技有限公司 基于速度相互匹配的捻绳装置
CN109137163A (zh) * 2018-11-05 2019-01-04 常州市万兴自控设备有限公司 一种倍捻机构及其工作方法和倍捻装置
CN111005103A (zh) * 2019-12-17 2020-04-14 江苏兴达钢帘线股份有限公司 一种四倍捻新型捻股机

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Publication number Publication date
ITPD20100018U1 (it) 2011-09-27
EP2369052A3 (de) 2012-02-08

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