Method and apparatus for the SZ-twisting of electrical cables
AssigneeSiemens Aktiengesellschaft
InventorDieter Vogelsberg
Life of this patent
Estimating the term…
Abstract
A twisting disk disposed within a torsioning section between two twisting points in the vicinity of the exit point of the torsioning section and which rotates with a direction of rotation alternating by sections in used to avoid over twisting of the twisting elements during the SZ-twisting of electrical cables.
Claims17
Apparatus for twisting elements for an electrical cable into a twisted unit having a twist direction which alternates from section to section comprising:
- a. supply means for twisted elements;
- b. a guide nipple through which all of said twisted elements pass and are formed into a contiguous group defining a first twisting point;
- c. means defining a second twisting point, a torsioning section being defined by the two twisting points;
- d. means for pulling the twisted unit off and winding it;
- said twisted elements passing from said supply means first through said guide nipple and from said guide nipple to said means defining a second twisting point;
- e. twisting means in the form of a single twisting disk supported for rotation in either direction arranged within the torsioning section closer to said second twisting point that to said first twisting point.
A method for twisting elements for electrical cables to form a twisted unit having a twist direction which alternates from section to section comprising the steps of:
- a. tensioning the twisting elements between a first and second twisting point with said twisting elements contiguous to each other at both said first and second twisting points;
- b. disposing a twisting device comprising a single twisting disc near said second twisting point;
- c. running said twisting elements through the section defined between said first and second twisting points from said first to said second twisting point in a stretched condition;
- d. rotating said twisting disc with a direction of rotation which alternates;
- and
- e. changing the direction of rotation of said twisting disc only after at least three complete revolutions in one direction.
Dependencies are inferred from the claim text.