Device for manufcaturing chopped fiber bundle and method for manufacturing same

A device for manufacturing a chopped fiber bundle comprising a cutter roll provided with one or more disk blades on a circumference of a roll core, the roll core having a center axis, the center axis coinciding with a rotation axis of the roll core and the device also comprising a nip roll provided in parallel with the rotation axis of the roll core, the nip roll to feed a reinforcing fiber yarn to be continuously cut between the nip roll and the cutter roll, the device further comprising:

• a traverse guide running approximately parallel to the rotation axis of the roll core and traversing the reinforcing fiber yarn along the rotation axis of the roll core so that the reinforcing fiber yarn is led between the cutter roll and the nip roll, wherein the traverse guide comprises a pair of first traverse rolls and a second traverse roll, the first traverse rolls tuck the reinforcing fiber yarn while moving in a left and right direction along the rotation axis of the roll core to regulate the positioning of the reinforcing fiber yarn in a left and right direction, and the second traverse roll leads the reinforcing fiber yarn on the second traverse roll onto a surface of the nip roll.