device and method for continuously strengthening rod walspro cold metal products, in particular steel wire.

摘要

1442097 Twisting and stretching metal VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE -ALPINE MONTAN AG 17 Oct 1974 [19 Oct 1973] 45008/74 Heading B3E Apparatus for continuous cold work hardening of wire or other filamentary metal stock by stretching and/or twisting comprises a rotatable housing 1 for at least one coil 2 of the wire located coaxially with the housing, stationary drawgear 13 for the wire, and a frame 3 between the housing 1 and drawgear 13 being rotatable about the same axis as the housing and supported a brake for the wire, and means for driving the housing and frame in the same direction. As shown, the housing and frame form a unitary structure journalled by hollow shafts 5, 6 in bearings 7, 8, and driven by motor 10 through gears 11. The wire 17 drawn off the coil 2 is sheared around drum 4 rotatable aboutaxis 18 in frame 3 and co-operating with brake shoes 19. The wire then passes around drawgear drum 13 and on to a coiler 20. When it is desired to stretch the wire only, the housing and frame are not rotated, and stretching occurs between drums 13 and 4. When the housing and frame are rotated to effect twisting, tensioning of the wire is maintained within the elastic limit. The housing 1 may contain several coils of wire, welded end to end to avoid waste at the beginning and end of each coil.