| 摘要 |
(57) The invention relates to a alternate reverse or so-called SZ-twisting method and apparatus both to product as cable or similar produced by means of said alternate reverse twisting method and/or apparatus. The elements (2) to be alternate reversely twisted may be wires, leads, optical fibers, their groups and similar or which can also be quads of wires, leads, optical fibers etc. Said elements (2) to be twisted and a possible core element (9) are drawn from a fixed dividing means (3), preferably a perforated holeplate, through twisting means (6), preferably a perforated holeplate, rotating periodically to opposite directions, to pressing means (7), preferably a niple, in which said elements to be twisted and said possible core element are pressed together, to form a alternate reversely twisted product (8). According to the invention between said dividing means (3) and said twisting means (6) is adapted a pipe group (4,5) for defining the feedpaths of said elements (2) to be twisted and said possible core element (9). Said pipe group includes both a centrally located central pipe (5) for defining the feedpath of the possible core element and several peripherical pipes (4) for defining the feedpaths of said elements to be twisted, which peripherical pipes surround circumferentially said central pipe and are periodically twistable to opposite directions around and against said central pipe. (FIG. 4) |
