CUTTING MECHANISM FOR THE FILAMENT YARN

摘要

A method and apparatus for the chopping of glass strands is disclosed. The back-up or cot roller for the chopping blades includes an annular cutting surface or ring which is mounted on an expandable wheel such as an inflatable wheel(2). By varying fluid pressure within the inflatable wheel, variations in the resiliency of the cutting surface are realised. This allows for a smoother operation of the choppng system and increases the life of the cutting surface. This reduces replacement costs for the annular cutting surface rings or cots by further increasing their life expectancy, thus improving the efficiency of the chopping system.