Method and apparatus for separating sewing threads and carbon fibers

摘要

A method and an apparatus for separating sewing threads from pieces of carbon fiber mats or bundles of carbon fibers using rollers covered with card clothing. The mat pieces or fiber agglomerates are broken up and separated using the different mechanical properties of the fibers.

主权项

1. A method for separating sewing threads and carbon fibres, the method comprising:
feeding recycled carbon fibre mat pieces onto a first roller, wherein the recycled carbon fibre mat pieces include carbon fibre mats, pieces of carbon fibre mats, or carbon fibre agglomerates interspersed with sewing threads; urging the recycled carbon mat pieces through an interface between the first roller and an second roller, wherein the second roller includes a second roller surface covered with card cloth; within the interface, breaking up the recycled carbon fibre mat pieces into carbon fibres and carbon fibre bundles; isolating at least some of the carbon fibres and carbon fibre bundles from the sewing threads; and while moving along the second roller surface, removing at least some of the carbon fibres and carbon fibre bundles from the second roller surface while at least some of the sewing threads remain on at least one of the first or second rollers.