Method and apparatus for the production of stranded cable
AssigneeYazaki Corporation
InventorTamotu Nishijima
Life of this patent
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Abstract
A method and apparatus for producing a stranded cable. The wire stretching step and annealing steps which have been performed independently prior to the twisting step in the field of stranded cable production are combined in the invented apparatus. The rotary element defines an annular space in cooperation with a shoe member such that the cross sectional area of the annular space decreases progressively. The roughened wire guided into the annular space via the shoe member is press molten and subjected to extrusion moulding to obtain a plurality of wires, which in turn are twisted together. Since the stretching and annealing are performed by a single apparatus, shop space conventionally required for device installation is reduced.
Claims37
A method of producing a stranded cable, comprising the steps of:
- extruding axially a plurality of wires from a plurality of dies mounted to a rotary element rotatable in a predetermined direction;
- and
- twisting continuously said plurality of wires together to produce a stranded cable.
A method of producing a stranded cable comprising the steps of:
- extruding axially a plurality of wires from a plurality of dies respectively mounted to a plurality of rotary elements arranged in series;
- twisting together said plurality of wires from the respective rotary elements to produce a plurality of stranded cables;
- and
- subjecting the stranded cable produced by each rotary element to a further twisting operation in which wires fed out by a succeeding rotary element are twisted about the stranded cable produced by dies on said each rotary element.
A method of producing a stranded cable comprising the steps of:
- extruding axially a plurality of wires from a plurality of dies respectively mounted to a plurality of rotary elements arranged radially;
- twisting said plurality of wires from the respective rotary elements to produce a plurality of stranded cables;
- and
- subjecting said plurality of stranded cables to a further twisting step to produce a stranded cable.
An apparatus for producing a stranded cable including at least one stranded cable producing unit, said unit comprising:
- support means;
- rotary means supported by said support means and rotatable in a predetermined direction, said rotary means defining an annular space;
- a shoe member having a wire supply passageway bored therethrough to supply a roughened wire from outside the shoe member and facing said annular space to define an annular passageway in cooperation with said rotary means such that communication is provided between said wire supply passageway and said annular passageway to guide the roughened wire thereinto, said annular passageway being shaped to progressively compress the roughened wire;
- a plurality of die assemblies arranged about the axis of rotation of said rotary means and each extending axially and facing said annular space, whereby the compressed wire is extruded into a plurality of wires;
- and
- means arranged downstream of said die assemblies for twisting said plurality of wires together into a cable.
An apparatus for producing a stranded cable including a plurality of stranded cable producing units, each unit comprising:
- support means;
- rotary means supported by said support means and rotatable in a predetermined direction, said rotary means defining an annular space;
- a shoe member having a wire supply passageway bored therethrough to supply a roughened wire from outside the shoe member and facing said annular space to define an annular passageway in cooperation with said rotary means such that communication is provided between said wire supply passageway and said annular passageway to guide the roughened wire thereto, said annular passageway being shaped to progressively compress the roughened wire;
- a plurality of die assemblies respectively arranged about the axis of rotation of said rotary means and each extending substantially axially and facing said annular space, whereby the compressed wire is extruded into a plurality of wires;
- and
- means arranged downstream of said units for twisting said plurality of wires from said die assemblies together into a cable.
Dependencies are inferred from the claim text.