US3073104A - Method and machine for making cables - Google Patents

Method and machine for making cables Download PDF

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Publication number
US3073104A
US3073104A US782237A US78223758A US3073104A US 3073104 A US3073104 A US 3073104A US 782237 A US782237 A US 782237A US 78223758 A US78223758 A US 78223758A US 3073104 A US3073104 A US 3073104A
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United States
Prior art keywords
stranding
rotor
cable
reel
wires
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
US782237A
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English (en)
Inventor
Braaten Amund
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
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Publication of US3073104A publication Critical patent/US3073104A/en
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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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/08—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position
    • D07B3/085—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position

Definitions

  • the present invention relates to a method for making Wire rope or cables of steel and/or metal, for the sake of convenience referred to below as metal wire cables.
  • a number of different types of stranding machines for the manufacture of metal wire cables comprising one or more layers of metal wires are generally known.
  • the types employed for stranding a single layer comprises stranding machines with pay otf bobbins mounted in a stationary rack for the manufacture of cable, with or without floating bobbins, for instance buncher machines, braiding machines with flyer and machines with take-up reels mounted in a rotating cradle, and all the types of stranding machines provided with bobbins or reels mounted in rotating parts.
  • the object of the present invention is to provide a method and a stranding machine for the manufacture of a cable having several layers of metal wires, for making possible a considerably greater output per time unit as compared to the output by previously known methods.
  • the method according to the invention possesses considerable advantages as the machinery is relatively simple, it is easy to operate and can be utilized more efficiently, especially as waste of remaining .lengths of wire is avoided.
  • the invention concerns a method for the manufacture of metal wire cables comprising at least two layers of steel and/or metal wires by using stranding rotors of a type where theup-to-then finished cable is taken up by the stranding rotor.
  • the characteristic feature of the invention is that the stranding rotor where the up-to-then finished cable is taken up serves as pay-off device for the stranding rotor wherein the next layer of wires is to be applied.
  • Two stranding rotors may be used alternately applying the desired number of wires or several stranding rotors may be used, of which each one separately applies a layer.
  • the invention also concerns a stranding machine for use in connection with the said method.
  • the stranding machine is characterized by mechanical or electrical synchronizing equipment between pairs of stranding rotors.
  • the synchronizing equipment causes two stranding rotors to rotate at nearly the same speed of rotation such that the stranding rotor which serves as pay-off equipment provides the necessary retrograde motion of the unto-then finished part of the cable which is supplied to the stranding rotor when the next layer of wire is applied.
  • the stranding rotors each of which may be provided 2 with a permanently fitted reel, are particularly designed for high speeds.
  • the method according to the invention is not limited to stranding of a certain number of layers of metal Wire or to comprise a certain maximum number of wires in each layer.
  • the largest known stranding machines which are generally used in the cable industry are designed for applying four layers of metal wire on a core, where each layer respectively consists of 6, 12, 18 and 24 wires. These machines totally comprise 60 reels which are mounted in rotating members. It requires on the average 3-5 minutes to replace each one of the heavy reels.
  • Various improvements have been suggested in order to reduce the time necessary for replacing the reels, but in spite of these improvements, it is obvious that replacement of the reels to a great extent reduces the effective use of the machines even whena large crew is used. Waste of wire by this type of machine is normally considered to be approximately 1% of the total quantity of wire used, and thus this represents a considerable increase in the price of the product.
  • FIG. 1 shows two stranding rotors, 1 and 2, for instance of the type which is described in detail in connection with FIG. 3.
  • Stranding rotors which may have permanently fitted reels, are especially designed for high speed of rotation.
  • a core is supplied with the first layer of wires in one of the stranding rotors, for instance 1.
  • the take-up reel is designed such that it can take up a great length of stranded cable.
  • the stranding rotor 1 When the desired length of cable is stranded in this operation or when the takeup reel is full, the stranding rotor 1 is stopped and the end of the cable is pulled out from rotor 1 and inserted directly into the second stranding rotor 2, together with the desired number of wires which are to constitute the next layer of metal wires.
  • the stranding rotor 2 is thereafter started and the next layer of metal wires is applied in the opposite direction at the same time as the cable is payed off the reel of the stranding rotor 1 and pulled into the stranding rotor 2.
  • the machinery is arranged in such a manner that the so-far finished part of the cable may be guided alternately, and directly from one stranding rotor to the other stranding rotor until the desired number of layers are applied, the desired number of individual metal wires may be applied in infinite lengths as the wire of an almost empty coil is welded to the wire of a new coil.
  • the finished metal wire cable is spooled onto a conventional storage drum in a spooling machine.
  • the stranding rotors are made to revolve at approximately the same speed by means of synchronizing arrangements S, which may be of any electrical or mechanical type.
  • FIG. 2 shows machinery with four high speed stranding rotors 5, 6, 7 and 8. This arrangement is particularly designed for stranding of cables consisting of the following layers: Core and six wires (or a steel core consisting of seven wires), 12 wires, 18 wires and 24 wires. The 6 wires and a core are stranded in the first stranding rotor 5.
  • the stranding rotors are in pairs arrangedto rotate with the same speed by means of electrical or mechanical synchronizing equipment S arranged for connection between two adjacent stranding rotors.
  • FIG. 3 shows a type of high speed stranding rotor, especially suitable for praoticingthe method according to the present invention.
  • the rotor 10 is mounted on the bearing supports 11 and Hand is driven by means of gears, chains or. other known power transmission means 13.
  • the reel 14 which preferably is permanently attached to a shaft 15 is arranged concentrically to the rotor shaft.
  • the reel with shaft is constructed as a single unit particularly designed for high speed.
  • the reelshaft is supported in the. rotorin such a manner that the reel can rotate around its own axis, at the same time as it is shifted back and forth in directions lengthwise of the axis.
  • the reelshaft has, an extension 16 which is associated with guiding means 17, designed to shift the shaft and reel back and forth in order to spool'up the cable properly.
  • the guiding means 17 is only shown schematically in FIG.
  • reelshaft is coupled to a gear 153 or any other reversible
  • the power transmission means of the rotor and the reel are arranged such that a.
  • a stranding rotor of a type where a reel is supported in a revolving cradle may also be used.
  • the stranding rotors can, of course, be furnished with capstans.
  • a simple design of the many possiblesynchronizing arrangements which may be used, is gear units which may be connected between pairs of stranding rotors.
  • a method of manufacturing a cable having a plurality of layers of wires on a cable core using stranding rotors having associated storage reels comprising thev steps of feeding the strands of wire and the cable core into a first strandingrotor to-produce a partially finished stranded cable, winding the partial cable onto the reel of.
  • the stranding rotor feeding this partial cable from the reel of saidfirst stranding rotor together with additionalv stranding wires into a second stranding rotor whereby the reel of said'first rotor serves as a pay-off device for the second stranding rotor, synchronizing the rotation of saidfirst and second rotors to produce a predetermined lay of said stranded cable and winding the resultantinner reel member rotatably mounted within said rotor member and coaxial therewith for taking upandpaying out stranded lines, first means for rotating said rotor'men L her, second means for rotating said reel member, and third means coupled to said second means and to said reel member for axially translating said reel member relative' to said rotor member in synchronism with therotation of said reel member.
  • a stranding machine according to claim 3 and including fourth means coupledto saidsecond rotating means for varying the operation thereof to enable said reel member to alternately take up and pay out a length.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ropes Or Cables (AREA)
  • Manufacture Of Motors, Generators (AREA)
US782237A 1957-12-24 1958-12-22 Method and machine for making cables Expired - Lifetime US3073104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO12658357 1957-12-24

Publications (1)

Publication Number Publication Date
US3073104A true US3073104A (en) 1963-01-15

Family

ID=19908419

Family Applications (1)

Application Number Title Priority Date Filing Date
US782237A Expired - Lifetime US3073104A (en) 1957-12-24 1958-12-22 Method and machine for making cables

Country Status (7)

Country Link
US (1) US3073104A (en, 2012)
BE (1) BE574202A (en, 2012)
CH (1) CH367734A (en, 2012)
DE (1) DE1281318B (en, 2012)
FR (1) FR1211978A (en, 2012)
GB (1) GB847897A (en, 2012)
NL (1) NL99459C (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067568A (en) * 1960-02-01 1962-12-11 Delore Sa Geoffroy Stranding machine
NL271990A (en, 2012) * 1960-12-30 1900-01-01
US3094833A (en) * 1961-07-10 1963-06-25 Helen H Breffle Multi-strand cable fabricating apparatus and method
US3098342A (en) * 1961-08-23 1963-07-23 Lockheed Aircraft Corp Electric harness roving machine and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747769A (en) * 1928-06-04 1930-02-18 Nat Metal Molding Company Apparatus for the manufacture of electrical conductors
US1956730A (en) * 1929-09-11 1934-05-01 Western Electric Co Method of making electrical cables
US2058234A (en) * 1935-06-01 1936-10-20 Western Electric Co Method and apparatus for combining strands
US2780906A (en) * 1954-04-02 1957-02-12 Northern Electric Co Apparatus for forming multi-element cable

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288689A (de) * 1949-11-26 1953-02-15 Bachofen & Meier Maschf Zwirnmaschine.
DE1058409B (de) * 1954-10-16 1959-05-27 Richard Reiche Fluegelspinnmaschine zur Herstellung von Litzen, Seilen od. dgl.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747769A (en) * 1928-06-04 1930-02-18 Nat Metal Molding Company Apparatus for the manufacture of electrical conductors
US1956730A (en) * 1929-09-11 1934-05-01 Western Electric Co Method of making electrical cables
US2058234A (en) * 1935-06-01 1936-10-20 Western Electric Co Method and apparatus for combining strands
US2780906A (en) * 1954-04-02 1957-02-12 Northern Electric Co Apparatus for forming multi-element cable

Also Published As

Publication number Publication date
DE1281318B (de) 1968-10-24
GB847897A (en) 1960-09-14
CH367734A (de) 1963-02-28
FR1211978A (fr) 1960-03-21
BE574202A (nl) 1959-06-24
NL99459C (en, 2012)

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