US3732682A - Methods of and apparatus for twisting and stranding cable pairs in a tandem operation - Google Patents

Methods of and apparatus for twisting and stranding cable pairs in a tandem operation Download PDF

Info

Publication number
US3732682A
US3732682A US00157947A US3732682DA US3732682A US 3732682 A US3732682 A US 3732682A US 00157947 A US00157947 A US 00157947A US 3732682D A US3732682D A US 3732682DA US 3732682 A US3732682 A US 3732682A
Authority
US
United States
Prior art keywords
conductors
successive sections
pair
twist
axis
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
US00157947A
Other languages
English (en)
Inventor
F Crotty
W Gause
G Hartranft
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of US3732682A publication Critical patent/US3732682A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
    • D07B3/06—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position and are spaced radially from the axis of the machine, i.e. basket or planetary-type stranding machine
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/20—Type of machine
    • D07B2207/202—Double twist unwinding
    • D07B2207/203—Double twist unwinding comprising flyer
    • 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
    • D07B2207/4072—Means for mechanically reducing serpentining or mechanically killing of rope
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/40—Application field related to rope or cable making machines
    • D07B2501/406—Application field related to rope or cable making machines for making electrically conductive cables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
    • D07B3/022—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position with provision for imparting two or more twists to the filaments for each revolution of the guide member

Definitions

  • ABSTRACT A twist is imparted in each pair of a plurality of pairs of insulated conductors for each revolution of an associated flier bow as each of the pairs pass over sheaves at opposite ends of the bow in a high speed twister.
  • Each of the twisted pairs is passed from the twister along a predetermined path through an associated untwist-retwist device in which the twisted pair is untwisted by advancing successive sections of the individual conductors along separate paths and revolving the successive sections of the conductors being advanced along the separate paths about the predetermined path.
  • This invention relates to methods of and apparatus for twisting and stranding cable pairs in a tandem operation, and, more particularly, to methods of and apparatus for twisting each of a plurality of cable pairs at a different twist length and for then removing the twist therefrom and subsequently retwisting and stranding the cable pairs in a tandem operation.
  • twist length means the length required for a point on one of the conductors of the twisted pair to complete a 360 spiraling cycle and be in the same relative position with respect to theother conductor of the twisted pair as exists at the starting point of the cycle.
  • a right-hand twist is defined to refer to a conductor pair which is twisted so that an observer looking along the pair from a vantage point at a cross section thereof observes the conductors spiraling in a clockwise direction.
  • a left-hand twist refers to a spiraling in a counterclockwise direction.
  • the intertwisting of the insulated conductors to form a twisted pair- may be accomplished in a process in which the conductors are twisted together continuously to form a unidirectional twist therein.
  • either the conductor supply or the takeup is usually rotated about the longitudinal axis of the conductors in the forming of the unidirectional twist.
  • a typical strand twisting apparatus is shown in U.S. Pat. No. 1,684,533, issued on Sept. l8, 1928, in the name of one G. A. Bouvier.
  • a cotton core and six tinsel served threads are passed in a first direction over sheaves and around a capstan of a twisting unit and from there in a reverse direction for a short distance.
  • the core and tinsel are then advanced in the first direction downwardly and through a rotating flier arm to revolve successive sections of the strand about a vertical axis of the apparatus. After the successive sections emerge from the flier bow, the successive sections are advanced upwardly in the reverse direction and taken up on a reel inside of the surface of revolution generated by the flier bow.
  • a plurality of the twisted pairs of conductors are then fed into a strander, wherein the twisted pairs are associated together into stranded cable units.
  • Prior art high speed twisting machines have included reels which are each supported in a separate, stationary reel carrier.
  • An arcuately formed tubular member commonly referred to as a flier bow, is moved rotatably around these reel carriers to revolve the conductors being payed off from the supply reels about the axis of the machines.
  • Machine lengths corresponding to the reel spacings, large weights and driving power and excessive reel assembly and machine set-up times have been necessary in using this conventional apparatus.
  • the use of the hereinbefore-described twisting machines has also necessitated accurate balancing of large rotating masses and numerous bearings for the tubular members and reel carriers which give rise to a high noise level and requirements of undue amounts of supervision, maintenance and repair.
  • a first twist is imparted to the pair of strands as the strands pass generally about a first sheave at one end of the flier bow.
  • a second twist is imparted as strands are passed in the second direction and around another sheave at the other end of the flier bow. Therefore, two twists are imparted to given lengths of the pair of strands.
  • one patent provides a method of twisting which includes drawing a plurality of strands from supply reels which are mounted in a stationary reel carrier in the direction opposite to the direction of withdrawal of the end product.
  • the strands are then guided through at least one guide unit around the exterior of the reel carrier, and passed in the direction of withdrawal of the end product to a twisting head and subsequently to a compression die where the twisting of the strands occurs.
  • That patent discloses that the strands experience no intertwisting and no new intratwisting in their passage from the reel carrier to the compression die.
  • the guide unit is rotated about the reel carrier and the twisting head rotated in the same direction but at double the speed of the guide unit, the guide unit guiding the strands from the reel carrier to the twisting head individually and separately from one another.
  • At least one prior art patent (U.S. Pat. No. 2,956,102) provides a single twisted pair having the lengths of the twists in the pair continuously varying throughout. Preferably random variation is controlled so that there is no fixed pattern in the twist variation whereby lengths of the one twisted pair can be placed adjacent one another in open circuits or in cables with a minimum of difficulty from inductive disturbances therebetween.
  • the process for providing pairs of quads of twisted pairs is done in one operation and the stranding of the units into a cable done separately, which contributes to the non-uniformity of twist in conductor pairs.
  • stranding is one of the most important problems. Much thought has been given to increasing the stranding speed and tandemizing the process for twisting insulated wires into a pair or quad with the process for stranding a plurality of the pairs.
  • Prior art stranding methods have included rotating a cage provided with a plurality of supply reels of conductor pairs to strand the pairs to a take-up reel.
  • a strander in which the axes of the supply reels are stationary while the entire take-up device is rotated.
  • the pairs of conductors may be payed off or taken around the supply or the take-up device with a flier.
  • the first-mentioned apparatus creates a large centrifugal force because of the rotation of the cage and reels so that the revolutions per minute is somewhat limited with accompanying low stranding speed. Undue time is also required to load and unload supply reels into the cage.
  • the second-mentioned prior art strander permits of high speeds, but much time is consumed in loading and unloading a take-up reel. Moreover, it is impossible with this apparatus to continuously carry out the stranding of insulated conductors and stranding the twisted pairs in a tandemized operation.
  • the third approach permits of high speeds but is somewhat inconvenient to load and unload the supply or take-up reels.
  • the twisting and stranding is preferably done in a tandem operation to help insure that the twist is maintained precisely located and in a uniform manner.
  • the need for reeling and unreeling of twisted pairs, which distorts the twist in a pair, is eliminated. Intermediate handling and storage is eliminated. Tandem twisting and stranding offers several other important advantages. Tandem twisting and stranding greatly reduces the number of sheaves over which the twisted pairs pass with accompanying distortion of twist.
  • a twist setter operates on this general principle.
  • the wire is made of a material such that when twist is imparted thereto, the wire has an inherent tendency to untwist. Therefore, it has been the practice to advance a twisted pair around a rotatably mounted sheave which is revolved about the axis of the advancing conductor and to then pull the conductor from the sheave by a capstan.
  • the initial twist may be completely removed and then reset thereby working the twisted pair to set the twist.
  • the conductors of the twisted pair remains together or as adjacent conductors as the pair are advanced around the sheave and out of engagement therewith, the sole purpose being to set the final twist in the conductors.
  • a tubular spindle for receiving a twisted yarn from a pair of roller nips for carrying the yarn with the spindle through a constructed portion thereof as the spindle is rotated.
  • a second pair of rollers nips the roving near the outlet of the spindle.
  • the rotary motion of the spindle is stopped periodically. The duration of these stoppages is adjusted to deliver a length of roving equal to the distance between the two pairs of rollers between which the spindle is mounted.
  • An object of this invention is to provide methods of and apparatus for twisting and stranding cable pairs in a tandem operation.
  • a method illustrating certain features of this invention may include the steps of advancing successive sections of each of a plurality of strand materials along an associated predetermined path, imparting a twist to successive sections of portions of each of the plurality of strand materials while advancing each of the strand materials along the associated predetermined path, disassociating the successive sections of the twisted portions of each of the strand materials while removing the twist therefrom, retwisting together the successive sections of the portions of each of the strand materials, and stranding together the successive sections of the plurality of strand materials.
  • An apparatus for twisting and stranding cable pairs in a tandem operation and illustrating certain features of the invention may include facilities for advancing successive sections of each of a plurality of strand materials along an associated predetermined path, facilities for imparting a twist to successive sections of portions of each of the plurality of strand materials while advancing each of the strand materials along the associated predetermined path, facilities for disassociating successive sections of the twisted portions of each of the strand materials and for removing the twist therefrom, facilities for retwisting'together the successive sections of the portions of each of the strand materials, and facilities for stranding together the successive sections of the plurality of strand materials.
  • FIG. 1 is a perspective view of an apparatus which embodies the principles of this invention and includes facilities for imparting a uniformly distributed twist to conductor pairs and for then stranding the twisted pairs into a cable unit;
  • FIG. 2 is a side-elevational view of a portion of the twisting facilities of the overall apparatus and which includes a plurality of twisting units mounted between spaced flanges, each of the units including a cradle designed to supply a conductor pair to be twisted;
  • FIG. 3 is an enlarged detail view of a portion of a loading platform and safety step-plate
  • FIG. 4 is a top view of one of the plurality of twisting units including the associated cradle which are used to support supply reels for twisting a conductor pair;
  • FIG. 5 is a view in elevation partially in section of the cradle of FIG. 2 and includes conventional apparatus for the high speed twisting of a conductor pair;
  • FIG. 6 is an enlarged detail view in section of a flier bow associated with each of the twisting units
  • FIG. 7 is an enlarged detail view taken along lines 7-7 in FIG. 2 and showing facilities for driving the twisting units and untwist-retwist devices;
  • FIG. 8 is a perspective view of another portion of the apparatus and which includes a plurality of untwistretwist devices, each thereof being associated with one of the twisting units and associated supply cradles;
  • FIGS. 9A-9C are enlarged detail views of different ones of the devices which may be used to disassociate successive sections of the conductors of a twisted pair to remove an initial twist from a conductor pair and for then imparting a uniformly distributed twist to the conductor pair;
  • FIG. 10 is an enlarged detail end view of one of the untwist-retwist devices shown in FIG. 7;
  • FIG. 11 is an enlarged detail view of the portion of the apparatus just downstream of the untwist-retwist devices and showing a plurality of twisted pairs, each pair having a different length twist;
  • FIG. 12 is a view in elevation of a binding device which is used to apply a double binding to a stranded cable unit;
  • FIG. 13 is a detail view of improved facilities for guiding the stranded and bound cable unit into a capstan.
  • FIG. 14 is an end elevational view partially in section of a take-up device for taking up the successive sections of the cable unit
  • FIG. 15 is a schematic view showing one of the conductor pairs being twisted, separated and untwisted, and retwisted as the conductor pair is advanced through the tandemized twisting-stranding operation;
  • FIG. 16 is a schematic view of the separate paths of the conductors about the untwist-retwist device.
  • FIG. 1 there is shown an apparatus, designated generally by the numeral 20, for tandemized twisting and stranding of cable pairs of conductors.
  • the general arrangement includes a twisting drum, designated generally by the numeral 21, for imparting continual twist to a plurality of pairs of strands or conductors 22-22 into twisted pairs 23-23, untwist-retwist facilities, designated generally by the numeral 24, stranding and binding facilities, designated generally by the numeral 25, for stranding and binding the plurality of conductor pairs into a cable unit 26, and a take-up, designated generally by the numeral 27, for taking up the cable unit.
  • the stranding facilities 25 include a binding unit, designated generally by the numeral 28, for binding together the conductor pairs 23-23, and a rotatably mounted capstan, designated generally by the numeral 29.
  • the twisting cage or drum 21 includes a pair of spaced apart flanges 31a and 31b which are connected by tie rods 32-32 spaced evenly about a circumferential circle of the flanges.
  • the flange 31a is supported on spaced rollers 33-34.
  • One each of the rollers 33 and 34 which are positioned on the same side of the drum 21 are connected through a drive 36 to a drive motor 37.
  • the rollers 33-33 and 34-34 are supported on ledges within a well 38 which opens to a manufacturing floor 39.
  • the remainder of the equipment as shown in FIG. 1 is mounted on the manufacturing floor 39.
  • the twisting drum 21 is enclosed by a wire mesh covering 42 to protect operating personnel during the twisting operation. Additionally, the top most half of the twisting cage has a solid transparent cover 43, made from a material such as transparent Lexan, over the wire mesh fabric 42 to afford protection against small lengths of the conductors 22-22 that may be directed centrifugally outwardly from the twisting cage at high velocities.
  • the cover 43 is also effective in reducing the noise level of the apparatus 20.
  • arcuate segments of the wire mesh fabric 42 and overlying cover 43 are mounted for rotational movement. After rotation of the drum has ceased, the segments of the mesh fabric 42 and overlying cover 43 may be moved to expose the interior of the drum. Additional safety features are provided to afford protection during the loading of the supply reels 44-44.
  • the mounting of the twisting drum 21 on the rollers 33-33 and 34-34 exposes a gap between the tie rods 32-32 and the top surface 46 of a loading platform 47 (see FIGS. 1 and 3).
  • a floor plate 48 is attached to each of the tie rods 32-32 to span across the gap and be contiguous to the top surface 46 of the loading platform 47 (see FIG. 3).
  • the plate 48 is spring-loaded with a resilient pin 49. Then, if an object is inadvertently placed between the plate 48 and the platform and should the drum 21 be rotated in a counterclockwise direction as viewed in FIG.
  • twisting drum 21 supports a plurality of twisting units, designated generally by the numerals 51-51 (see FIGS. 2, 4 and 5), which simultaneously twist each of the plurality of conductor pairs 23-23 which are later untwisted and retwisted and then stranded into the cable unit 26.
  • Each of the twisting units l51 includes a cradle 52 having facilities for supporting two of the supply reels 44-44 having conductors 2222 wound thereon.
  • Each one of the cradles 52-52 includes a pair of spaced apart side plates 53-53 connected at the ends thereof by end plates 54-54.
  • two pair of spaced rods 56-56 and 57-57 span between and are connected to the side plates.
  • Provisions are made to support each of the reels 4444 rotatably within each of the cradles 52-52. Aligned with each pair of the rods 56-56 and 5757 are a fixed support cone 58 and a movable support cone 59 (see FIG. 4) which are designed to be received in the hub openings of the reels. The center lines of the cones 58 and 59 are aligned and spaced above the rods 5656 and the rods S7-57 so that when the reels 44-44 are supported by the cones, the flanges are slightly above the associated rods 56-56 or 57-57 (see FIG. 5).
  • each one of the movable cones 5959 has a handle 61 extending laterally of the axis thereof.
  • the handle 61 is turned to follow a cam race 62 formed in a bushing 63 mounted externally of one of the side plates 5353. The turning of the handle 61 moves the associated movable cone 59 inwardly to advance the movable cone into the one hub opening (not shown) in the flange of the reel 44 which is adjacent the movable cone.
  • each of the supply reels 44-44 has a drive system 64 associated therewith.
  • Each of the supply reels 4444 is connected to the drive system 64 by an associated friction plate 66 which is adapted to engage the flange of the reel which is adjacent the fixed cone 58.
  • FIGS. 4 and 5 there are shown the paths of the conductors 22-22 which are withdrawn from the supply reels 44-44 in one of the twisting units 51-51.
  • the conductor 22, designated 22a from the downstream one of the reels 4444 is passed over a sheave 67 and thence over a sheave 68 which is below the sheave 67.
  • the sheaves 67 and 68 lie generally in a plane which is canted to the vertical.
  • the conductor 22a is passed in a downstream direction around a sheave 69 having a generally vertical axis 71 and then back in an upstream direction through an opening 72 in the end plate 54 of the cradle 52.
  • the other one 22b of the conductors from the downstream one of the supply reels 44-44 is withdrawn from the reel and passed over a pair of sheaves 73 and 74 which lie in a plane canted to the vertical and angled to the aforementioned plane containing the sheaves 67 and 68.
  • the conductor 22b is then directed in a downstream direction around a sheave 76 having a generally vertical axis and then in an upstream direction through the opening 72.
  • each of the sheaves 69 and 76 is mounted rotatably and for arcuate movement in a generally horizontal plane on one end of an arm 77.
  • the arm 77 is mounted for pivotal movement about a pin 78 and has a gear segment 79 mounted between the associated one of the sheaves 69 or 76and the pins 7878.
  • the gear segment 79 is in meshing engagement with a gear 81 that is mounted on a shaft extending from a rheostat 82.
  • the rheostat 82 is connected through a circuit (not shown) to the drive system 64, mounted adjacent one of the side plates 53-53.
  • the drive system 64 associated with each one of the reels 44-44 is responsive to changes in the tension of the associated conductors 22-22 being payed out from the reels manifested in rotation imparted by the gear segment 79 to the gear 81 and hence to the rheostat 82.
  • the turning of the rheostat 82 controls the electrical circuit (not shown) to increase or decrease the rotational speed of the friction plate 66 and hence to increase the rotational speed of the reels 4444.
  • the conductors 2222 are advanced through the opening 72 and through a passageway 83 in a guide bushing 84 that is mounted rotatably in a bearing 85.
  • the bearing 85 is mounted in a support 86 connected to the end plate 54.
  • the conductors 2222 are advanced around a sheave 87 and then around a sheave 88 which are supported rotatably between a pair of plates 8989 of an end support or carriage 90.
  • the plates 8989 on the downstream side thereof are connected to the bushing 84 and the upstream side of the plates are connected to a pintle 91.
  • Each one of the cradles 5252 is supported at the downstream end thereof in a fashion similar to that just described for the upstream end.
  • the downstream one of the end plates 54-54 is connected to a bracket 92 having a bearing 93 mounted therein.
  • a stub shaft 94 extends into the bearing 93 and is attached to a cross plate 96 spanning and connected to two spaced plates 97-97 of a support 98.
  • the plates 97-97 are attached to a downstream pintle 99.
  • the cradle is freely supported or free floating as between the bearings 85 and 93.
  • the pintles 91 and 99 may be driven rotatably as is to be later described to move rotatably the supports and 98 about an axis 101 without imparting rotation to the cradle 52.
  • FIG. 5 Facilities are provided for moving successive sections of the conductors 2222 from the upstream support 98 while revolving the successive sections of the associated conductors 2222 about the axis 101 of the associated cradle 52. More specifically, the successive sections of the conductors 2222 are moved from the sheaves 87 and 88 in the upstream support 90 into engagement and around successively a sheave 102 and a sheave 103 which are mounted rotatably between the plates 97-97 of the support 99. As can best be seen in FIG. 5, a flier bow, designated generally by the numeral 106, is connected to a bearing 107 mounted rotatably between the plates 97-97 of the downstream support 98.
  • the flier bow 106 includes an arcuately formed metal strip 109 having a plurality of crossheads 111-111, spaced therealong.
  • Each of the crossheads 111-111 is a generally rectangular block having two peripherally located holes 112-112 and a central hole 113 formed therethrough.
  • Two wire ropes 114-114 extend from the bearing 107 to the bearing 108, each of the wire ropes being threaded through the holes 112 on each side of each of the crossheads 111-111.
  • This construction is an improvement over prior art flier bows such as that shown in US. Pat. No. 1,684,533, issued on Sept. 18, 1932.
  • the flier how 106 is similar to that shown in the above-mentioned patent but includes the metal strip 106.
  • the metal strip 106 is useful in preventing collapse of the flier bow 106 after the rotation thereof about the axis 101 has been discontinued.
  • the conductors 22-22 are passed from the sheave 88 through a passageway 116 in the bearing 107, then through successive ones of the aligned holes 113-113 in the associated successive ones of the crossheads 111-111 and through a passageway 117 in the bearing 108 in the downstream support 92. Then the conductors 2222 are passed around the sheaves 102 and 103 and through a longitudinal bore 118 formed in the pintle 99.
  • each of the twisting units includes two of the flier bows 106-106.
  • the one of the flier bows 106-106 hereinbefore described revolved successive sections of the associated conductor pairs about the axis 101 of the twisting unit 51.
  • the other one of the flier bows 106-106 is identical in construction, but is used merely for purposes of balancing the twisting unit 51.
  • Arrangement of Twisting Units The embodiment of the apparatus shown in FIG. 1 is designed to twist individually seven pairs of conductors 2222 and then to strand the seven conductor pairs 29-29 into a cable unit 26. In order to accomplish this, seven individual twisting units 51-51 are required.
  • each of the twisting units 51-51 within the twisting drum 21 is separated from the adjacent ones of the twisting units by a separator plate 121.
  • the separator plates 121-121 are connected between the flanges 31a and 31b and extend radially outward from the axis of rotation 119.
  • the six twisting units 51-51 within the drum 21 are arranged so that the associated axes 101-101 thereof are in converging engagement with the axis 119 of the drum 21 at a point downstream of the flange 31b.
  • the seventh one of the twisting units 51-51 is positioned adjacent the upstream flange 31a of the twisting drum 21 (see FIG. 1) and designed to have the twisted pair advanced therefrom along the axis 119 of .the drum.
  • the upstream and downstream supports 90 and 98, respectively, of the seventh one of the twisting units 51-51 are mounted from stands 122-122 supported on the manufacturing floor 39.
  • the conductors 2222 to which twist is imparted by the seventh twisting unit 51 are advanced through the passageway 118 in the downstream pintle 99 and thence through a tube 123 (see FIG. 7) concentrically disposed within a tie rod 124 and about the axis 119.
  • the tie rod 124 extends through a bearing 126 in an opening 127 in the drum flange 31a, and thence through a bearing 128 in an opening 129 in the downstream drum flange 31b.
  • FIG. 7 there are shown portions of a system, designated generally by the numeral 130, for driving the individual ones of the twisting units 51-51 and for driving additional facilities to be described hereinafter which are effective to untwist and retwist the conductors 2222.
  • a main gear 131 is connected to a drive motor (not shown) and is mounted inside of an enclosure 132 on the upstream side of the flange 31a of the twisting drum 21.
  • the centermost one of the tie rods 124-124 extends through a center opening in the gear 131 and through a bearing in the enclosure 132 (see FIG. 7).
  • the main gear 131 is mounted for meshing engagement with a gear 133 that is mounted on a shaft 134. Also mounted on the shaft 134 is a gear 135 which is connected through a gear train having an end gear 136 thereof mounted on a shaft 137.
  • the shaft 137 also has a change gear 138 mounted thereon which is in meshing engagement with another change gear 139.
  • the change gear 139 is mounted on a shaft 141 having a transmitting gear 142 also mounted thereon.
  • the gear 142 is in meshing engagement with a bevel gear 143 connected to a drive shaft 144 which extends through the flanges 31a and 31b of the twisting drum 21 and is mounted in bearings 146 and 147, respectively, in the flanges.
  • the drive train shown in FIG. 7, starting with the gear 133 through the bevel gear 143, is repeated six times about the axis 119 of the twisting drum 21, once for each of the individual twisting units 51-51.
  • Each set of the change gears 138 and 139 is accessible through an associated access door so that the rotational speeds of each of the twisting units 51-51 may be changed as desired.
  • the gear 131 is designed to impart motion simultaneously to each of the six twisting units 51-51 arranged about the twisting drum 21.
  • the drive shaft is supported in a bearing 148 with an end of the drive shaft having a pulley 149 connected thereto.
  • the drive shaft 144 is connected to the upstream pintle 91 of the associated twisting unit 51 by a belt 151.
  • the belt 151 is passed around the pulley 149 and a pulley 152 attached to a shaft 153 extending from the associated pintle.
  • This arrangement provides facilities for driving the upstream end of the twisting unit 51 and specifically the associated flier bow 106. Problems could arise if only one end of the flier bow 106 were driven. For example, a certain amount of torsion could be imparted to the flier bow 106 which may possibly cause adverse effects on the flier bow itself as well as the performance thereof.
  • a pulley 154 connected to the downstream end of the drive shaft 144 supports a belt 156 which is passed therearound to a pulley 157 which is attached through a shaft 158 to the downstream pintle 99 of the associated twisting unit 51.
  • Similar provisions are made for driving both ends of the flier bow 106 of the twisting unit located upstream of the flange 31a and outside of the twisting drum 21.
  • the drive system 130 hereinbefore described is used to drive not only the twisting unit 51-51 but also todrive the untwist-retwist units 24-24 which are located downstream of the twisting drum 21.
  • the shaft 158 also has a pulley 161 attached thereto for supporting a belt 162 which is passed over a pulley 163 that is mounted rotatably on a support shaft 164.
  • the support shaft 164 also has a pulley 166 attached thereto for supporting a belt 167 which is passed around a pulley 168 that is connected to an end part 169 of an elongated tubular guide member 171.
  • the twisted pair 23 of conductors 22-22 are passed through the downstream one 99 of the pintles and into the aligned associated one of the tubular members 171-171 (see FIG. 7).
  • the drive arrangement exemplified by the pulley 161 through belts 162 and 167 to pulley 168 permits the tu bular guide member 171 to be driven at a rotational speed which is greater than the rotational speed of the associated flier bow 106.
  • the rotational speed of each of the tubular guide members 171-171 must be twice that of the rotational speed of the associated ones of the flier bows 106-106.
  • the actual untwisting and subsequent retwisting of the conductor pairs 23-23 is accomplished downstream of the twisting drum 21.
  • the drive system 130 hereinbefore described permits not only a change in rotational speed of the drive shafts 144-144, but also permits varying the rotational speeds as between the different ones of the drive shafts. Hence, the rotational speeds of the flier bows 106-106 may be different from each other to impart different length twists as between the seven conductor pairs 23-23.
  • the drive system 130 also includes a clutch (not shown) which permits the operation of each of the flier bows 106-106 and associated ones of the untwistretwist facilities 24 at the same rotational speeds to facilitate string-up of the conductors 22-22 at the startup of the apparatus 20.
  • Untwist-Retwist Facilities The twist imparted to the conductor pairs 23-23 by the associated twisting units 51-51 is removed therefrom and new precise, uniformly distributed twist imparted thereto by the untwist-retwist facilities 26 subsequent to the conductor pairs being moved downstream of the drum 21.
  • a plurality of untwist-retwist devices designated generally by the numerals 181-181 (see FIGS. 1 and 2), are positioned downstream of the twisting drum 21 with each one of the untwist-retwist devices being associated and connected to one of the tubular guide members 171-171.
  • tubular members 171-171 are supported rotatably in bearings 172 in upright plate 173, then in bearings 174 in a crosshead plate 176, and in bearings 177 in a crosshead plate 1'78.
  • the crosshead plate 178 is just upstream from the plurality of untwist-retwist devices 181-181.
  • each of the untwist-retwist devices 181-181 includes a head 182 composed of a solid portion 183 having spaced side plates 184 and 186 extending therefrom.
  • a sheave 187 having double grooves 188 and 189 is mounted rotatably on a pin 190 extending from the side plate 184
  • a sheave 191 having double grooves 192 and 193 is mounted rotatably on a pin 194i extending from the side plate 186.
  • the solid portion 183 is constructed with a passage 196 formed therethrough for passing the conductors 22-22 of the associated conductor pair 23 from the associated tubular member 171 to the grooves 188-189 and the grooves 192-193.
  • Each one of the heads 182-182 is connected rigidly to the associated one of the tubular guide members 171-171. In this way, the heads 182-182 are rotated at the same speed as the associated ones of the tubular guide members which is twice the rotational speed of the associated ones of the flier bows 106-106. It is also to be noted that the rotation of the tubular guide members 171-171 and the heads 182-182 attached thereto is in the same direction as that of the associated flier bows 106-106.
  • each of the conductors 22-22 of each of the conductor pairs 23-23 are separated upstream of the associated head 182 and are not rejoined in a twisted pair until at a point downstream of the associated heads 182-182.
  • the point of separation may be as far upstream as the sheave 103 of the associated twisting unit 51 in the twisting drum 21.
  • each of the conductors 22-22 is advanced in a separate path through the associated head 182, the conductor 22a being advanced over sheave 191 in groove 192 and then over sheave 187 in groove 188 while the conductor 22b is advanced over the sheave 187 in groove 189 and then over the sheave 191 in groove 193.
  • the sheaves 187 and 191 are mounted for orbital movement about the associated axis 101.
  • each of the conductors 22a and 22b permits of a more effective untwist and more precise, uniformly distributed retwist than may have been accomplished in the past when the conductor pair 23 was simply advanced around a revolving sheave to set the twist therein.
  • each of the conductor pairs 23-23 is accomplished by the rotation of the heads 182-182 and accompanying revolving of the sheaves 187 and 191 in cooperation with a plurality of short tubes 206-206 positioned downstream of the heads 182-182.
  • Each of the short tubes 206-206 is associated and aligned with one of the heads 182-182 and the attached tubular guide member 171.
  • each of the short tubes 206-206 is substantially greater in diameter than the diameter of the twisted pair 23 and has an enlarged upstream end 207.
  • the short tubes 206-206 are mounted in a face plate 208 that is supported by a plurality of rods 209 cantilevered out from fixed connections with the crosshead plate 178.
  • each of the tubes 206-206 protrudes a different distance upstream of the face plate 208 than that of the other one of the tubes.
  • the final twist length imparted to each of the conductor pairs 23-23 is determined by the rotational speeds of the flier bows 106-106 and associated untwist-retwist devices 181-181 relative to the line speed.
  • a varying twist can be imparted to a conductor pair by varying the distance between the enlarged portion 207 of the tube 206 and the associated ones of the heads 182-182 of the associated untwist-retwist device 181-181. Accordingly, it is within the scope of this invention to mount the tubes 206-206 for reciprocal movement axially of the tubes 171-171. In this way, the drive system (not shown) for such an arrangement could be programmed so that the tubes 206-206 are moved reciprocally randomly to produce a randomly varying length twist along a conductor pair 23 to further reduce the crosstalk between the adjacent pairs of conductors.
  • the hereinbefore described portion of the method of this invention sets forth a rotation of each of the tubular members 171-171 and associated untwist-retwist devices 181 at twice the rotational speed of the associated one of the flier bows 106-106, i.e., twice the revolutions per minute.
  • This arrangement provides, for example, a four inch twist imparted to a conductor pair 23 at the upstream end of the flier bow 106 and a four inch twist as the conductor pair enters the associated tubular guide member 171.
  • a second twist in the 4 inch length which would normally occur at the downstream end of the flier bow is prevented from occurring because of the relative rotational speeds of flier bow and tubular guide member.
  • each of the untwistretwist devices 181-181 be less than twice that of the associated flier bow 106, the same length twist as that imparted at the upstream end of the associated flier bow 106 will be in the conductor pair 23 as the conductor pair exits from the twisting unit 51. However, in this instance, all of the twist will not be removed by the untwist-retwist device 181 and the conductor pair 23 will be caused to shear apart due to torsional stresses on the upstream side of the associated untwist-retwist device.
  • this rotational speed of the untwist-retwist devices 181-181 be greater than twice that of the associated ones of the flier bows 106-106, i.e., ratio of speed of untwist-retwist device to that of associated flier bow is greater than two, all of the twist imparted by the flier bow 106 will be removed. Moreover, under these conditions, not only will all of the twist be removed, but the conductor pair 23 upstream of the untwist-retwist device 181 will be retwisted in the opposite direction. Eventually, the conductor pair 23 will shear apart as with the ratio of speeds less than 2, but in a direction opposite to that experienced when the ratio of speeds is less than two.
  • FIG. 9A is the preferred embodiment and has been described in detail, the untwist-retwist device shown in 913 and 9C may also be used.
  • FIG. 9B is shown an untwist-retwist device 210 having a channel 211 with a plate 212 disposed therewithin. The plate 212 is upstanding and separates the conductors 22-22 of each pair 23, one of the untwist-retwist devices being associated with each of the conductor pairs.
  • FIG. 9C there is shown still another untwist-retwist device 213 which includes a rotatablymounted spinner 213 having a pair of parallel spaced holes 214 drilled therethrough for separating and guiding the conductors 22-22 ofa pair 23.
  • the spinner 213 is mounted for rotation about the axis 101 of the associated pair 23.
  • each of the embodiments of the untwist-retwist devices 181-181 the conductors 22-22 of each pair 23 are disassociated by positively separating the conductors into diverging paths while the twist imparted by the associated flier bow 106 is removed. At least portions of the separate paths of each conductor pair 23 are spaced generally evenly circumferentially about the predetermined path or axis 101 of the twisting unit 51 which extends through the associated tubular guide member 171 and associated untwist-retwist device 181.
  • Stranding Facilities The stranding facilities 25 include an entrance tube 216 having a flared end 217 to facilitate the advance of the conductor pairs 23-23 into the strander tube.
  • the conductor pairs 23-23 would be prone to be oriented in a random or fluctuating manner by engaging the peripheral end of the tube 216, resulting in variation in twist length.
  • the twisted pair 23 would tend to be oriented with the valley between twist crests in engagement with the tube entrance. After a subsequent crest is advanced past the entrance, the pair 23 tends to turn to engage the next valley with the entrance rim. This results in a changing of the twist length and is overcome by using a flared entrance.
  • FIG. 11 depicts very vividly the differing twist length as between adjacent ones of the conductor pairs 23-23.
  • the plurality of conductor pairs 23-23 which amounts to seven in the preferred embodiment shown in the drawings, are advanced downstream by the capstan 29.
  • the capstan 29 is a commercially available piece of equipment and is designed to turn rotatably about the axis 119 of the apparatus 20. In this way, the capstan not only pulls the plurality of conductor pairs 23-23 through the binding unit 28, but also strands the pairs and imparts a lay thereto.
  • the binding unit 28 includes a binder device, designated generally by the numeral 220.
  • the conductor pairs 23-23 are advanced through a constricted opening 221 in an entrance portion 222 of a hollow cop spindle 223.
  • the hollow cop spindle 223 is supported rotatably in a bearing 224 in a block 226 that is mounted in a frame 227.
  • the frame 227 is supported from a top surface 228 of a stand (see FIGS. 1 and 12).
  • a pulley 232 is attached to an enlarged end 233 of the cop spindle.
  • a belt 234 is passed over the pulley 233 and connected to a drive system (not shown) through a clutch (not shown).
  • the cop spindle 223 includes a binder core 236 on which is mounted a binder cop 237 having a supply of binder 23d wound thereon.
  • the binder 238 is to be payed off from the cop 237 and passed through an opening 239 of a cup 241 to be applied to successive sections of the stranded plurality of pairs of conductors 23-23.
  • the cup 241 is attached to a housing 242 that is mounted rotatably on bearings 2413 and 244 supported from the block 226.
  • the cup 241 is driven rotatably at a constant angular velocity through a belt (not shown) which is connected to the housing 242 and to a drive system (not shown).
  • the drive system (not shown), which also drives the hollow cop spindle 223, has facilities for controlling the tension in the binder 233.
  • automatic compensation may be made for the difference in the speed of rotation of the binder cop as the binder 238 is payed out and the diameter of the cop is reduced. This results in the desirable condition or" maintaining constant tension in the binder 238.
  • Two of the just-described binder devices 229-220 such as that shown in FIG. 12 are arranged in tandem to apply a double binder 238 spirally to the cable unit 26.
  • the two binder devices 22619-229 are identical with an upstream one thereof arranged to apply the binder 238 prior to entry of the cable unit 26 into the hollow cop spindle 223 and with the other arranged down stream of the other to apply the binder as the cable unit exits from the hollow spindle 223 of the second binder unit.
  • the overall binder apparatus 220 has a pair of snubbing rollers 249 at the downstream end of the downstream one of the binder devices 229-220 (see H6. 12).
  • the snubbing rollers 2d9-24l9 are spaced apart and mounted rotatably to grasp the cable unit 26 there-- between to prevent undue undulations in the cable unit due to the span between the binder apparatus 219 and the next successive in-line apparatus from affecting adversely the binding of the cable unit.
  • the snubbing rollers 2d9-249 overcomes the tendency of the cable unit 26 to twist as the second one of the binders is applied.
  • the binding apparatus depicted in FIG. 22 applied to two binders 232-238 in the same spiral direction by having the two binder devices 220-220 rotate in the same direction, the binders could be applied in opposite spiral directions in a basketweave pattern.
  • Capstan After the cable unit 26, having two binders 238-233 applied thereto, is moved out ofthe binding unit 22, the cable unit is advanced through the capstan 29 (see FIG.
  • the capstan 29 is a well-known tractor type having a pair of spaced closed loop-belts 251-2511 for grasping the cable unit 26 therebetween.
  • the belts 251-251 are each mounted on a pair of spaced rollers 252 which are connected to a drive unit (not shown) for driving the belts.
  • the capstan 29 is mounted rotatably between two uprights 253-253 ofa stand 254 and is connected through a hollow shaft 255 and pulley 256 by a belt 257 to a drive unit 253.
  • Provisions are also made to prevent the cable unit 26 from sagging during certain periods of the rotational cycle of the capstan 27.
  • the cable unit 26 tends to sag because of the distance between the capstan and the hollow shaft 255 (see FIG. 13).
  • a small diameter tube 259 is positioned within the shaft 255 and extends to a point adjacent the belts 251-251 to reduce the unsupported span.
  • the capstan 29 not only pulls the twisted conductor pairs 23-23 from the tubular guide members ll71-ll7ll through the twister heads 182-182 and thence through the binder devices 229-220, but also is turning the twisted pairs rotatably to strand the pairs onto a cable unit 26, all in a tandem operation.
  • a plurality of the cable units 26-26 may later be stranded into a larger cable unit.
  • the cable unit 26 is taken up in the take-up device 27.
  • Take-Up Device As can best be seen from FTGS. l and lid, the successive sections of the cable unit 26 are taken up on a reel 261 mounted rotatably in the take-up device 27.
  • the reel 261 is supported for rotation between a fixed cone 262 and a movable cone 263 which are mounted internally of a large cylindrical enclosure 264 supported on the floor 39.
  • the movable cone 263 is mounted on an upper end of a threaded rod 266 that may be threadably turned into or out of a base 267 by a drive unit 268 to lower or raise, respectively, the movable cone 263.
  • Another drive unit (not shown) imparts rotary motion to the reel 2611 to wind successive convolutions of the successive sections of the cable unit thereon.
  • the reel 261i is supported inside the enclosure 264 so that the axis of the reel is vertical and with the reel flanges horizontal.
  • the enclosure 264i has an access opening 269 to facilitate unloading full reels 261-262 and loading of empty reels.
  • the access opening 269 is positioned to permit a pair of spaced forks 272-272 of a fork truck 273 to be in serted therethrough to move the forks under the lowermost one of the flanges of the reel 2611. During this maneuver, the forks 272-272 of the fork truck 273 straddle the movable core 263.
  • the fork truck 273 is oriented with respect to the access opening 269 by a pair of spaced guide rails 27d-27d attached to the floor 39.
  • Control System Although no electrical circuit is specifically disclosed, a sophisticated electrical control circuit is used to control interlocks of the safety features, wire tension controls and the start-up of the apparatus 2 1]). Also appropriate limit switches are included to stop the operation of the apparatus 20, should a conductor break or run out occur.
  • an operator loads a plurality of supply reels 44-44, each having an individual conductor 22 wound thereon into the twisting drum 21.
  • the operator moves two of the supply reels 44-44 to the top of the platform 47 and controls the rotational movement of the twisting drum 21 through the electrical circuit (not shown) to position one of the twisting units 51-51 adjacent the platform 47.
  • the operator causes the segments of the wire cage 42 and solid Lexan cover 43 to be rolled toward the opposite side of the twisting drum to expose the interior thereof and loads one of the supply reels 44 into the cradle 52 of the immediately adjacent twisting unit 51.
  • the one supply reel 44 is positioned, say, in the downstream-most position in the cradle 52 with the flanges thereof resting thereof on the spaced rods 56-56 (see FIG. 4). Then the operator loads the other one of the reels 44-44 into the upstream one of the payoff positions to support the flanges of the reel on the spaced rods 57-57.
  • the operator strings the conductors 22-22 as shown in FIGS. 4 and over the sheaves 67, 68 and 69 and the other one of the conductors over the sheaves 73, 74 and 76. Then the operator passes the conductors 22-22 through the opening 72 in the cradle 52 and through the passageway 83 in the bushing 84 and around the sheaves 87 and 88. The two conductors 22-22 are then passed through the passage 116 in the bearing 107 and then successively through each of the openings 113-113 in each of the crossheads 111-111 of the flier how 106.
  • the two conductors 22-22 are passed through the passageway 117 in the bearing 108 around the sheaves 102-103 and then through the bore 118 in the pintle 99, through the twisting drum flange 31b. Finally, the two conductors 22-22 are pulled manually through the end part 169 and the associated tubular guide member 171 to the untwist-retwist device 181.
  • the operator then moves indexably the twisting drum 21 to position successively each one of the other five twisting units 51-51 inside the drum adjacent the loading platform 47 and proceeds to load two supply reels 44-44 into each one of the cradles 52-52 associated with the twisting units. Then the operator closes the drum 21 with the movable segments of the wire cage 42 and overlying solid cover 53. Additionally, the operator loads two supply reels 40-44 in the seventh one of the seven twisting units 51-51 which is positioned outside of and upstream of the twisting drum 21 and strings the conductors 22-22 through the central tube 123 extending through the drum 21 and then on through the central tubular member 171 to the associated head 182.
  • the operator controls the initiation of the drive system to move rotatably each of the flier bows 106-106 and withdraw approximately 20 to 30 feet of the twisted pair of the conductors 22-22 from each of the twisting units 51-51.
  • the flier bows 106-106 impart two twists per length to each of the conductor pairs 23-23. The first one of the twists is imparted to each of the conductor pairs 23-23 generally as the conductors 22-22 thereof are passed around the sheave 87, while the second twist per length thereof is imparted generally to the conductors as the conductors are moved generally around the sheave 103.
  • one of the conductors 22a is passed under the sheave 191 in groove 192 and then around the sheave 188 in groove 189 and into the associated one of the short tubes 206-206.
  • the other one 22b of the conductors 22-22 is first passed over the sheave 187 in the groove 189 and then around the sheave 191 in the groove 193 and into the same one of the short tubes 206-206.
  • the conductor pair 23 is pulled through the associated short tube 206 and spliced to a conductor pair 23 extending upstream from the stranding facilities 25 and belonging to the previously stranded cable unit 26.
  • the operator then performs a similar operation with respect to the other six conductor pairs 23-23 thus providing a setup for a continuous stranding operation in tandem with twisting.
  • FIG. 15 depicts the path of one of the conductor pairs and showing the manipulative steps performed with respect thereto.
  • the conductors 22-22 are payed out from the supply reels 44-44 and pulled through the associated one of the flier bows 106-106.
  • the twisting cage 21 is rotated only during the loading of the supply reels 44-44 and that the cradles 52-52 are mounted so as to remain substantially stationary as the flier bows 106-106 are revolved thereabout.
  • the sheaves 87 and 83 and the sheaves 102 and 103 associated with each one of the twisting units 51-51 are revolved in an orbital motion about the axis 101 of the twisting unit 51.
  • the arms 77-77 tend to be pivoted toward the upstream end of the cradle 52 to cause the gear segments 79-79 to impart rotation to the gears 81-81 to turn the rheostats 82-82.
  • the rheostats 32-82 control the drive systems 64-64 to increase the rotational speeds of the supply reels 44-44 to reduce the tension. Should the tension be reduced, the levers are spring-biased toward the downstream

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Ropes Or Cables (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Wire Processing (AREA)
US00157947A 1971-06-29 1971-06-29 Methods of and apparatus for twisting and stranding cable pairs in a tandem operation Expired - Lifetime US3732682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15794771A 1971-06-29 1971-06-29

Publications (1)

Publication Number Publication Date
US3732682A true US3732682A (en) 1973-05-15

Family

ID=22566016

Family Applications (1)

Application Number Title Priority Date Filing Date
US00157947A Expired - Lifetime US3732682A (en) 1971-06-29 1971-06-29 Methods of and apparatus for twisting and stranding cable pairs in a tandem operation

Country Status (10)

Country Link
US (1) US3732682A (https=)
JP (1) JPS5221097B1 (https=)
BE (1) BE785528A (https=)
CA (1) CA953993A (https=)
CH (1) CH543801A (https=)
DE (1) DE2231533C3 (https=)
ES (1) ES404761A1 (https=)
FR (1) FR2144393A5 (https=)
GB (1) GB1401701A (https=)
IT (1) IT959282B (https=)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044538A (en) * 1977-01-24 1977-08-30 Teijin Seiki Company Limited Arrangement of strand twisting apparatuses
US4102117A (en) * 1976-06-25 1978-07-25 Western Electric Company, Inc. Wire twisting method and apparatus
US4112660A (en) * 1976-09-03 1978-09-12 Industrie Pirelli Societa Per Azioni Apparatus for laying-up together a plurality of fragile filaments
US4232507A (en) * 1973-02-22 1980-11-11 Carlo Menegatto Apparatus and method for wrapping core yarns
US4459799A (en) * 1982-04-09 1984-07-17 Les Cables De Lyon Quad guide device for guiding quads to a telephone cable stranding machine
US4554782A (en) * 1984-08-03 1985-11-26 Northern Telecom Limited Manufacture of telecommunications cable core units
DE3521485A1 (de) * 1984-06-18 1986-01-02 Ceeco Machinery Manufacturing Ltd., Concord, Ontario Verfahren und vorrichtung zur herstellung von gebuendelten kompaktleitungen
US4641689A (en) * 1983-08-19 1987-02-10 Bridon Plc Method and equipment for making wire strands
US5551224A (en) * 1994-04-06 1996-09-03 Frisch Kabel-Und Verseilmaschinenbau Gmbh Device for reverse-twisting stranding elements
US6209299B1 (en) 1999-04-30 2001-04-03 Thermoplastics Engineering Corp. Double twist twinner with back-twist pay offs and intermediate capstan
EP1033727A3 (en) * 1999-03-01 2001-05-09 CORTINOVIS S.p.A. Method and machine for stranding two conductors in the shape of helices with a same winding direction, offset by half the stranding length
US6230478B1 (en) * 1999-12-01 2001-05-15 Nextrom Ltd. Differential length metering apparatus and method for the cabling of insulated conductors with fillers using the double twist process
US6318062B1 (en) * 1998-11-13 2001-11-20 Watson Machinery International, Inc. Random lay wire twisting machine
CN105421127A (zh) * 2015-12-31 2016-03-23 天津市大地海陆岩土工程技术开发有限公司 一种快捷预应力钢绞线分线装置
US10280035B2 (en) * 2017-04-07 2019-05-07 Dongguan City Qingfeng Electrical Machinery Co., Ltd. Kind of power paying-off cradle and power paying-off full-automatic stranding cable machine
CN113104671A (zh) * 2021-04-13 2021-07-13 杨有仪 一种阻燃防火电线电缆制造自动化加工系统
CN113192702A (zh) * 2021-05-13 2021-07-30 安徽持质恒智能设备有限公司 一种电线电缆生产用框绞机及其使用方法
CN113472159A (zh) * 2021-07-15 2021-10-01 河北中磁科技有限公司 一种组装大型电机用的铜丝绕线机
CN116936194A (zh) * 2023-09-08 2023-10-24 量子科技长三角产业创新中心 极低热导率直流线成型方法及用于量子计算机的直流线

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111280Y2 (https=) * 1977-12-12 1986-04-09
DE3006054C2 (de) * 1980-02-18 1982-03-18 Siemens AG, 1000 Berlin und 8000 München Einrichtung für die SZ-Verseilung von Verseilerelementen
CA1174914A (en) * 1982-08-24 1984-09-25 Nordx/Cdt, Inc. Apparatus for stranding at least two wires together
CA1174911A (en) * 1982-08-24 1984-09-25 John N. Garner Forming cable core units
GB2171072A (en) * 1985-02-19 1986-08-20 Stc Plc Binding head
JP7353003B1 (ja) * 2023-05-25 2023-09-29 幸衛 大竹 撚合装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701119A (fr) * 1929-10-01 1931-03-12 Hackethal Draht & Kabelwerk Ag Procédé et dispositif pour la fabrication des câbles téléphoniques
US1988586A (en) * 1930-06-04 1935-01-22 Western Electric Co Quad stranding machine
DE822119C (de) * 1949-11-01 1951-11-22 Siemens Schuckertwerke A G DM-Vierer-Verseilmaschine
US2877620A (en) * 1956-10-08 1959-03-17 Edmands Company Wire twisting machine
US2956391A (en) * 1955-09-30 1960-10-18 Siemens Ag Cable-forming apparatus
US3017450A (en) * 1957-07-19 1962-01-16 Western Electric Co Cables
US3431718A (en) * 1964-02-18 1969-03-11 Vornbaeumen & Co E Method and machines for twisting together strands of material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701119A (fr) * 1929-10-01 1931-03-12 Hackethal Draht & Kabelwerk Ag Procédé et dispositif pour la fabrication des câbles téléphoniques
US1988586A (en) * 1930-06-04 1935-01-22 Western Electric Co Quad stranding machine
DE822119C (de) * 1949-11-01 1951-11-22 Siemens Schuckertwerke A G DM-Vierer-Verseilmaschine
US2956391A (en) * 1955-09-30 1960-10-18 Siemens Ag Cable-forming apparatus
US2877620A (en) * 1956-10-08 1959-03-17 Edmands Company Wire twisting machine
US3017450A (en) * 1957-07-19 1962-01-16 Western Electric Co Cables
US3431718A (en) * 1964-02-18 1969-03-11 Vornbaeumen & Co E Method and machines for twisting together strands of material

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232507A (en) * 1973-02-22 1980-11-11 Carlo Menegatto Apparatus and method for wrapping core yarns
US4102117A (en) * 1976-06-25 1978-07-25 Western Electric Company, Inc. Wire twisting method and apparatus
US4112660A (en) * 1976-09-03 1978-09-12 Industrie Pirelli Societa Per Azioni Apparatus for laying-up together a plurality of fragile filaments
US4044538A (en) * 1977-01-24 1977-08-30 Teijin Seiki Company Limited Arrangement of strand twisting apparatuses
US4459799A (en) * 1982-04-09 1984-07-17 Les Cables De Lyon Quad guide device for guiding quads to a telephone cable stranding machine
US4641689A (en) * 1983-08-19 1987-02-10 Bridon Plc Method and equipment for making wire strands
DE3521485A1 (de) * 1984-06-18 1986-01-02 Ceeco Machinery Manufacturing Ltd., Concord, Ontario Verfahren und vorrichtung zur herstellung von gebuendelten kompaktleitungen
US4554782A (en) * 1984-08-03 1985-11-26 Northern Telecom Limited Manufacture of telecommunications cable core units
US5551224A (en) * 1994-04-06 1996-09-03 Frisch Kabel-Und Verseilmaschinenbau Gmbh Device for reverse-twisting stranding elements
US6318062B1 (en) * 1998-11-13 2001-11-20 Watson Machinery International, Inc. Random lay wire twisting machine
EP1033727A3 (en) * 1999-03-01 2001-05-09 CORTINOVIS S.p.A. Method and machine for stranding two conductors in the shape of helices with a same winding direction, offset by half the stranding length
US6324824B1 (en) 1999-03-01 2001-12-04 Cortinovis S.P.A. Method and machine for stranding two conductors
US6209299B1 (en) 1999-04-30 2001-04-03 Thermoplastics Engineering Corp. Double twist twinner with back-twist pay offs and intermediate capstan
US6230478B1 (en) * 1999-12-01 2001-05-15 Nextrom Ltd. Differential length metering apparatus and method for the cabling of insulated conductors with fillers using the double twist process
CN105421127A (zh) * 2015-12-31 2016-03-23 天津市大地海陆岩土工程技术开发有限公司 一种快捷预应力钢绞线分线装置
CN105421127B (zh) * 2015-12-31 2018-02-27 天津市大地海陆岩土工程技术开发有限公司 一种快捷预应力钢绞线分线装置
US10280035B2 (en) * 2017-04-07 2019-05-07 Dongguan City Qingfeng Electrical Machinery Co., Ltd. Kind of power paying-off cradle and power paying-off full-automatic stranding cable machine
CN113104671A (zh) * 2021-04-13 2021-07-13 杨有仪 一种阻燃防火电线电缆制造自动化加工系统
CN113192702A (zh) * 2021-05-13 2021-07-30 安徽持质恒智能设备有限公司 一种电线电缆生产用框绞机及其使用方法
CN113192702B (zh) * 2021-05-13 2024-01-26 安徽持质恒智能设备有限公司 一种电线电缆生产用框绞机及其使用方法
CN113472159A (zh) * 2021-07-15 2021-10-01 河北中磁科技有限公司 一种组装大型电机用的铜丝绕线机
CN116936194A (zh) * 2023-09-08 2023-10-24 量子科技长三角产业创新中心 极低热导率直流线成型方法及用于量子计算机的直流线
CN116936194B (zh) * 2023-09-08 2023-12-15 量子科技长三角产业创新中心 极低热导率直流线成型方法及用于量子计算机的直流线

Also Published As

Publication number Publication date
JPS4814842A (https=) 1973-02-24
BE785528A (fr) 1972-10-16
CH543801A (de) 1973-10-31
DE2231533B2 (de) 1975-04-17
IT959282B (it) 1973-11-10
CA953993A (en) 1974-09-03
GB1401701A (en) 1975-07-30
DE2231533C3 (de) 1975-11-27
FR2144393A5 (https=) 1973-02-09
ES404761A1 (es) 1975-06-16
DE2231533A1 (de) 1973-01-11
JPS5221097B1 (https=) 1977-06-08

Similar Documents

Publication Publication Date Title
US3732682A (en) Methods of and apparatus for twisting and stranding cable pairs in a tandem operation
US3715877A (en) Communication cable
US1956730A (en) Method of making electrical cables
US5564268A (en) Apparatus and method for the manufacture of uniform impedance communication cables for high frequency use
US2956391A (en) Cable-forming apparatus
US3812666A (en) Double-twist stranding or cabling machine
US2331648A (en) Strand twisting apparatus
CA1290995C (en) Apparatus and process of manufacturing a metal cord
US3099412A (en) Strand control apparatus
US5622039A (en) Apparatus and method for the manufacture of uniform impedance communications cables for high frequency use
US3388543A (en) Manufacture of wire strands
US3360919A (en) Stranding apparatus
US3774385A (en) Machines and methods for manufacturing ropes, in particular steel cords
US4574571A (en) Apparatus for and method of manufacturing taped products with double twist equipment
CN219246451U (zh) 一种线缆绞合装置
US4384447A (en) Wire stranding apparatus
US3348369A (en) Stranding apparatus
US3762150A (en) High speed stranded conductor production process
US4677816A (en) Stranding machine
US4570428A (en) Twin track buncher
US3362147A (en) Wire cords
USRE23509E (en) Method of and apparatus for
US2709403A (en) Stranding machine
US3053037A (en) Apparatus and process for insulating and twisting strands
JPS5930438A (ja) 撚線の製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: AT & T TECHNOLOGIES, INC.,

Free format text: CHANGE OF NAME;ASSIGNOR:WESTERN ELECTRIC COMPANY, INCORPORATED;REEL/FRAME:004251/0868

Effective date: 19831229