Method and apparatus for the production of a flexible protection tube into which is drawn a wire

Abstract

Abstract 1. Process for the production of flexible cable protection sheaths (16) with cable pulling wire (12), whereby the cable pulling wire (12) is introduced in an injection head (24) for cable protection sheath and is then guided through a wire guiding tube (66) separate from the injection head (24) for cable protection sheaths, whereby this tube holds the wire (12) at a distance from the inside surface of the cable protection sheath (94) until fastening of the cable protection sheath (16) is at least partially achieved while the cable pulling wire (12) moves with an advancing speed (vd ) at least equal to the extrusion speed of the cable protection sheath (vr ), characterized by the fact that the pulling wire is directed in a wire straightening device (98) which is directly inserted in the wire guiding tube (66) crossing the injection head (24) and that a lubricant is sprayed through the wire guiding tube (66) end onto the area of the wire guiding tube (96) on the cable pulling wire (12) as well as on the inside surface of the cable protection sheath (94).

Inventors

• 👤 Rudolf Pelzer

Bibliographic Details