Mechanised feeding of materials to tyre build=up drum - having strips cross-cut to width equal to drum dia.

摘要

Tyres are built up by wrapping strips of fabric, rubber, etc. on to a build up drum, drawing off the materials from one feed and cross-cutting them into strips, the width of the strips being equal to the dia. of the drum. There are 2 reels one above the other, of unvulcanised rubberised cord, producing two strips with longitudinal cord filaments. These reels are offset from each other, so that adjacent edges of the strips are joined together by pressure rollers. Method make possible automatic or semi-automatic loading on to the drum as the strips do not require to be cut to length first.