Wire-like structure twisting machine
AssigneeSumitomo Electric Industries, Ltd.
InventorsYuichi Toda, Katsuji Sakamoto, Shigeru Tanaka, Yuji Kameo
Life of this patent
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Abstract
A wire-twisting machine for twisting individual wire-like structures into a cable, having a plurality of bobbins around which are wound the wire-like substance to be twisted, the bobbins being mounted on individual cradles which are supported at either end by disks secured to a common spindle, comprising: a drive mechanism having prime movers which are external to the bobbin-cradle assembly for controlling the speed of feeding the wire-like structure from its respective bobbin, thus resulting in constant wire-like structure tension, and another drive mechanism for controlling cradle rotation for fixing or adjusting the amount of twisting-back in said cable.
Claims6
Apparatus for twisting a plurality of wirelike structures into a cable with a twisting-back angle, comprising;
- a plurality of bobbins, a plurality of cradles each having an axially mounted supporting shaft, a cage, and a cage rotating spindle, wherein said wire-like structures are wound on said plurality of bobbins, each of which is supported in said cage, said cage rotating around said cage-rotating spindle, a separate driving system for each said bobbin, respectively comprising, a first chain sprocket coupled axially on said cradle, a chain wheel coaxial with said cage-rotating spindle and rotatable with respect to said cage-rotating spindle, a plurality of motors provided externally to said cage, and a rotation transmission means disposed internally of said respective chain wheel to engage an inner side surface of said chain wheel so that said respective chain wheels are driven by said rotation transmission means at said inner surface by said motors, wherein said motors control the bobbin feeding speed of said wire-like structures so as to twist said wire-like structures with constant tension.
Dependencies are inferred from the claim text.