Method and apparatus for manufacturing ropes, cables or the like

Abstract

The invention is directed to a method for manufacturing ropes, cables or the like, whereby an envelope of a flexible, web-shaped material, for example paper, is produced around at least one central core, for example a conductor, moved in the direction of its longitudinal axis, and the structure that has arisen in this way is stranded in a traditional way while being moved, for example with a SZ stranding, whereby at least one further layer of plastic material can also be applied onto the moving, stranded structure in any case, preferably by extrusion. So that a complete and dependable enveloping of a central core can be produced before a following stranding, even given systems running at high speed and continuously and given systems with a changing rotational sense of the stranding, the material for the envelope is supplied in the form of a band with the same speed as the moving core and, finally, is directed parallel to the core, whereas at least two longitudinal structures that are essentially parallel to one another and to the longitudinal axis of the band and that reduce the flexural strength of the band are worked into the band during the delivery thereof, and the band, following the alignment parallel to the core and before the stranding, is automatically bent around the core at least twice at its longitudinal structures such that a closed sheath arises around the central core.