Fiber spreading device

The utility model discloses a fiber expanding device which is used for expanding a carbon fiber bundle. The fiber spreading device comprises a discharging roll, a receiving roll, a vibration roller and a first air nozzle. And the vibration roller is arranged between the discharging roll and the receiving roll. Vibration roller contact carbon fiber bundle. The vibration roller rotates around the rotation axis, and the vibration roller vibrates in the vibration direction perpendicular to the rotation axis. And the first air nozzle is arranged between the vibration roller and the material receiving roll and blows air to the carbon fiber bundle. 本实用新型公开一种展纤装置，用以展开碳纤维束。展纤装置包括出料卷、收料卷、振动滚轮以及第一气嘴。振动滚轮设置在出料卷与收料卷之间。振动滚轮接触碳纤维束。振动滚轮依旋转轴线旋转，且振动滚轮沿垂直于旋转轴线的振动方向振动。第一气嘴设置在振动滚轮与收料卷之间，并对碳纤维束吹气。