US3782092A - Sz cabling device for communication cables - Google Patents

Sz cabling device for communication cables Download PDF

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Publication number
US3782092A
US3782092A US00220191A US3782092DA US3782092A US 3782092 A US3782092 A US 3782092A US 00220191 A US00220191 A US 00220191A US 3782092D A US3782092D A US 3782092DA US 3782092 A US3782092 A US 3782092A
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United States
Prior art keywords
twisting
twisted
pulling
cabling
group
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Expired - Lifetime
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US00220191A
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English (en)
Inventor
D Vogelsberg
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Siemens AG
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Siemens AG
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Publication date
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/02—Stranding-up
    • H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
    • 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
    • D07B3/005—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material with alternating twist directions

Definitions

  • ABSTRACT Cabling device has means for twisting strand elements into respective twisted units having a twist direction which varies from section to section thereof (alternate-reverse twist), and means for simultaneously twisting a plurality of such twisted units into a twisted group also having a twist direction varying from section to section thereof.
  • This two-stage cabling operation is effected by the aid of accumulators.
  • At least one pulling device is disposed, the pulling device being revolvable about an axis corresponding to the axis of the twist of the twisted units and the twisted group.
  • revolving twisting devices which include an accumulator, serve for effecting the SZ-twisting or cabling.
  • the accumulators can revolve with a rotary speed or rotary direction that varies from section to section, while the run-through speed of the strand elements is constant (U. S. Pat. No. 3,169,360).
  • the accumulators are also revolvable at constant rotary speed and rotary direction, while the run-through speed of the cable elements is varied from section to section (French Pat. No. 1,468,382).
  • a further possibility is to increase and decrease the accumulator content alternatingly, while the rotary motion of the accumulator remains the same (German Pat. No. 1,665,831).
  • it is also 'known to operate with stationary accumulators around which twisting or cabling yokes re- Volvo-(German Pat. No. 1,665,536).
  • twisting or cabling two successive and formerly separately executed twisting processes, for instance for twisting conductors to form quads and twisting several quads to form a basic group,are combined in a single operation.
  • the second twisting operation can be effected by means of a rotary pulling and takeup device.
  • the second twisting operation is often also an S2 twisting operation, however, in order to facilitate operating with a stationary pulling and take-up device.
  • cabling device comprising a first twisting stage for twisting strand elements into respective twisted units having a twist direction varying from section to section thereof, a second twisting stage for simultaneously twisting a plurality of the twisted units into a twisted group also having a twist direction varying from section to section thereof, the first and the second twisting stages each including an accumulator, and at least one pulling device disposed between the first and the second twisting stages and revolvable about the axis of twist of the twisted group.
  • the twisted units produced from the strand elements in the first twisting stage are twisted together by means of the pull ing device revolving about the axis of twist of the group twisting device.
  • the twisted units therefore pass through the pulling device in a twisted-together condition. Consequently, untwisting of the twisted units at the reversal points of the direction of twist is prevented in the region of the pulling device disposed ahead or upstream of the group twisting device in direction of cable travel.
  • revolving pulling devices in the twisting of strand or cable elements for communication cables has been known heretofore.
  • a rotating caterpillar pulling device can be suitable for the purpose ofeffecting a pretwisting operation for the purpose of symmetrizing the path of the conductor or cable element (German Published Pat. application No. 1,084,796).
  • the twisting is accomplished with the aid of a revolving pulling and take-up device wherein the pulling stage of the device is constructed as a sheave (German Published Pat. application 1,510,088).
  • a revolving pulling device is employed therein but, moreover, that it is employed in a two-state SZ twisting process, ahead or upstream of the second of the two twisting stages.
  • the 82 cable units which are mutually twisted together as they enter into the pulling device are twistreversed when leaving the pulling device, if the latter revolves independently of the next following downstream group twisting device. Therefore, in accordance with another feature of the invention, the pulling device is revolvable at the same speed and in the same rotary direction as the group twisting device, or with the entry or inlet part of the group twisting device. A twist reversal of the mutually twisted-together 52 cable units as they enter the group twisting device is thereby prevented.
  • a cabling device having a group twisting device that is revolvable at constant speed and is equipped with rollers or sheaves for guiding the strand or cable elements, the first sheave over which the strand or cable units pass being constructed as a pulling sheave.
  • the revolving pulling device and the revolving group twisting device are structurally combined one with the other.
  • one revolving pulling device for each of the strand or cable units twisted by the twisting devices.
  • the withdrawal or pulling of each twisted or cable unit for itself is effected in the conventional manner customary for a stationary pulling device.
  • each pulling device can revolve with the same speed and direction of rotation as the respective twisting device associated therewith or as the output or outlet part of that twisting device.
  • the twisting devices contain revolving rollers or sheaves for guiding the strand or cable elements, in accordance with an additional feature of the invention, the last sheave over which the strand or cable elements pass, is constructed as a pulling sheave.
  • FIGS. 1 and 2 are diagrammatic views of different embodiments of the cabling device of the invention.
  • FIG. 1 there is shown an embodiment of the cabling device of the invention which serves for twisting 20 conductors or cable elements 1 ofa communication cable to form a basic cable group 3.
  • the cabling device of the invention serves for twisting 20 conductors or cable elements 1 ofa communication cable to form a basic cable group 3.
  • twisting devices 5 and the group twisting device 6 are conventional 82 twisting machines, each of which includes one or two accumulators and twists the cable elements 1 or quads 2, respectively, to form respective twisted or cable units or a twisted or cable group having a direction of twist that is reversed successively from section to section thereof.
  • the pulling of the conductors or cable elements 1 through the twisting devices 5 is accomplished by means of a withdrawing or pulling device 7 which revolves in the direction of the arrow A around the axis of twist and which is located ahead or upstream of the group twisting devices 6 in the travel direction of the cable.
  • a withdrawing or pulling device 7 which revolves in the direction of the arrow A around the axis of twist and which is located ahead or upstream of the group twisting devices 6 in the travel direction of the cable.
  • the conductors or cable elements 1, which are twisted to form the basic cable group 3 are pulled through the group twisting device 6.
  • the takeup drum 9 is driven with constant torque.
  • the pulling device 7, which rotates in the direction of the arrow B thus establishes the pulling speed of the conductors or cable elements 1 and thereby the through-pulling speed of the conductors or cable elements 1, the quads 2 and the basic cable group 3 through the entire machine.
  • the pulling device 7 which revolves in the direction of the arrow A with constant speed and constant rotary direction, is a rotating pulling sheave to which the quads 2 are fed through the intermediary of a deflecting roller 10 and are led off by a deflecting roller 11 after being looped several times around the pulling sheave 7.
  • the pulling device 7 can include, in lieu of a revolving pulling sheave, also a revolving conventional double roller device, or a revolving caterpillar-type pulling device.
  • the quads 2 are provisionally mutually twisted together to form a cable group 3 in the twisting nipple 12 by the revolving pulling device 7.
  • a twist reversal of the cable group 2 takes place if the group twisting device 6 or its input or inlet part revolves with a speed and/or rotary direction other than that of the pulling device 7.
  • twisting device 6 is an SZ twisting machine which revolves with constant speed and rotary direction. This applied particularly to the case of S2 twisting machines which include one or two accumulators, the accumulated contents of which are alternatingly increased and decreased by sections.
  • S2 twisting machines which include one or two accumulators, the accumulated contents of which are alternatingly increased and decreased by sections.
  • FIG. 2 Such an embodiment of the invention is shown in FIG. 2.
  • the cable group twisting device of the embodiment of FIG. 2 is a conventional double accumulator device (German Published Pat. application No. 1,665,831 wherein each of the two accumulators 15 and 16 is constructed as a sheave or roller accumulator.
  • this accumulator assembly the quads 2, which are united in the twisting nipple 17, are SZ-twisted to form the basic cable group 3.
  • the accumulators l5 and 16 revolve with constant speed and in opposite rotary direction as represented by the respective arrows A and C in FIG. 2.
  • the quads 2 are fed to the respective accumulators 15 and 16 over respective deflecting sheaves or rollers 18 and 19 which revolve together with the respective accumulators about the axis of twist and are led off from the respective accumulators over a corresponding deflecting roller or sheave 20 and 21, respectively.
  • the deflecting sheave 18 over which the quads 2 are fed to the accumulator 15 is constructed as a pulling sheave. In order to prevent slippage, the quads 2 are looped around the pulling sheave 18 several times. The latter is driven with constant speed and therefore establishes or determines the pulling speed of the entire twisting machine.
  • the take-up device 8 located behind or downstream of the cable group twisting device 16 in FIG. 2 includes a take-up drum 9 driven with constant torque in a manner similar to that of the take-up device 8 shown in FIG. 1.
  • Cabling device comprising a first twisting stage for twisting strand elements into respective twisted units having a twist direction varying from section to section thereof, a second twisting stage for simultaneously twisting a plurality of said twisted units into a twisted group also having a twist direction varying from section to section thereof, said first and said second twisting stages each including an accumulator and a pulling device disposed between said flrst and said second twisting stages and revolvable about the axis of twist of said twisted group.
  • said second twisting stage is revolvable at constant rotary speed and comprises a plurality of rollers for guiding the twisted units in a given travel direction therethrough, said pulling device being a roller located upstream of and being revolvable with said plurality of guiding rollers, said pulling device roller being in the form of a pulling sheave.
  • Cabling device including a take-up drum located downstream of said second twisting stage and being adapted to be wound up by the twisted group twisted from the plurality of twisted units, said take-up drum being rotatable with constant torque, and said pulling device located upstream of said second twisting stage being operable so as to determine the speed at which the strand elements are pulled through the cabling device.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ropes Or Cables (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
US00220191A 1971-01-25 1972-01-24 Sz cabling device for communication cables Expired - Lifetime US3782092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2105843*A DE2105843C3 (de) 1971-01-25 1971-01-25 SZ Verseilvorrichtung fur Nach nchtenkabel

Publications (1)

Publication Number Publication Date
US3782092A true US3782092A (en) 1974-01-01

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ID=5798131

Family Applications (1)

Application Number Title Priority Date Filing Date
US00220191A Expired - Lifetime US3782092A (en) 1971-01-25 1972-01-24 Sz cabling device for communication cables

Country Status (11)

Country Link
US (1) US3782092A (de)
JP (1) JPS5239106B1 (de)
AT (1) AT306819B (de)
BE (1) BE778343A (de)
CH (1) CH539323A (de)
DE (1) DE2105843C3 (de)
FR (1) FR2123292B1 (de)
GB (1) GB1350107A (de)
IT (1) IT946797B (de)
NL (1) NL7201034A (de)
SE (1) SE367726B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884024A (en) * 1972-06-28 1975-05-20 Siemens Ag Twisting device for the SZ twisting of electrical cables
US3884025A (en) * 1972-08-11 1975-05-20 Siemens Ag Method and apparatus for making SZ-twisted communications cable
US4006582A (en) * 1973-08-07 1977-02-08 Siemens Aktiengesellschaft Method and apparatus for reducing the electrical coupling in communicating cables
US4182107A (en) * 1978-11-06 1980-01-08 Western Electric Company, Inc. Method of forming S-Z twisted strand units
US4196576A (en) * 1977-06-08 1980-04-08 Siemens Aktiengesellschaft Method and apparatus for S-Z twisting of electrical cables
US4214432A (en) * 1978-12-21 1980-07-29 Western Electric Company, Inc. Apparatus for forming S-Z twisted strand units
US4291527A (en) * 1980-08-15 1981-09-29 The Entwistle Company Cable strand tension controlling apparatus
US5647195A (en) * 1995-06-29 1997-07-15 Lucent Technologies Inc. Method for twisting a pair of moving strands

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026999C2 (de) * 1980-07-17 1984-01-12 kabelmetal electro GmbH, 3000 Hannover SZ-verseiltes, mehradriges elektrisches Energiekabel
GB2150905A (en) * 1983-12-05 1985-07-10 Ming Chih Lin A rotary type of wire-feeding machine
GB2242447A (en) * 1990-03-21 1991-10-02 Cyril Henry Gosling S-Z Twisting of cable elements

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412544A (en) * 1966-04-14 1968-11-26 Sumitomo Electric Industries Apparatus for the manufacture of communication cable
US3481127A (en) * 1966-12-16 1969-12-02 Siemens Ag Apparatus for manufacturing lay-reversed communication cable
US3491525A (en) * 1965-02-17 1970-01-27 Sumitomo Electric Industries Method for stranding in the manufacture of communication cables and stranding apparatus
US3507108A (en) * 1965-03-01 1970-04-21 Fujikura Ltd Method of producing s-z alternating twists and the apparatus therefor
US3664108A (en) * 1968-07-23 1972-05-23 Siemens Ag Intermediate storer for apparatus for stranding a twisted unit of a cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491525A (en) * 1965-02-17 1970-01-27 Sumitomo Electric Industries Method for stranding in the manufacture of communication cables and stranding apparatus
US3507108A (en) * 1965-03-01 1970-04-21 Fujikura Ltd Method of producing s-z alternating twists and the apparatus therefor
US3412544A (en) * 1966-04-14 1968-11-26 Sumitomo Electric Industries Apparatus for the manufacture of communication cable
US3481127A (en) * 1966-12-16 1969-12-02 Siemens Ag Apparatus for manufacturing lay-reversed communication cable
US3664108A (en) * 1968-07-23 1972-05-23 Siemens Ag Intermediate storer for apparatus for stranding a twisted unit of a cable

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884024A (en) * 1972-06-28 1975-05-20 Siemens Ag Twisting device for the SZ twisting of electrical cables
US3884025A (en) * 1972-08-11 1975-05-20 Siemens Ag Method and apparatus for making SZ-twisted communications cable
US4006582A (en) * 1973-08-07 1977-02-08 Siemens Aktiengesellschaft Method and apparatus for reducing the electrical coupling in communicating cables
US4196576A (en) * 1977-06-08 1980-04-08 Siemens Aktiengesellschaft Method and apparatus for S-Z twisting of electrical cables
US4182107A (en) * 1978-11-06 1980-01-08 Western Electric Company, Inc. Method of forming S-Z twisted strand units
US4214432A (en) * 1978-12-21 1980-07-29 Western Electric Company, Inc. Apparatus for forming S-Z twisted strand units
US4291527A (en) * 1980-08-15 1981-09-29 The Entwistle Company Cable strand tension controlling apparatus
US5647195A (en) * 1995-06-29 1997-07-15 Lucent Technologies Inc. Method for twisting a pair of moving strands

Also Published As

Publication number Publication date
AT306819B (de) 1973-04-25
FR2123292B1 (de) 1976-04-30
FR2123292A1 (de) 1972-09-08
NL7201034A (de) 1972-07-27
DE2105843A1 (de) 1972-08-03
SE367726B (de) 1974-06-04
CH539323A (de) 1973-07-15
GB1350107A (en) 1974-04-18
JPS5239106B1 (de) 1977-10-03
BE778343A (fr) 1972-05-16
DE2105843C3 (de) 1973-10-31
DE2105843B2 (de) 1973-04-12
IT946797B (it) 1973-05-21

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