A REINFORCING FIBER SPREADING DEVICE USING COMPRESSED AIR AND A SPREADING BAR AND A PREPREG MANUFACTURING DEVICE USING THIS

摘要

The present invention relates to an apparatus for inspecting a reinforcing fiber using compressed air and a spreading bar which can quantify various kinds of fibers quantitatively and which can determine a waving width by defining an extinction parameter, Device. To this end, the reinforcing fiber expanding device using the compressed air and the spreading bar according to the embodiment of the present invention has a rotation axis perpendicular to the moving direction, which is provided in the moving direction of the fiber, and has a first tension control part; A pressure applying device for supplying compressed air to the fibers passing through the first tension adjusting part; A dust collecting device disposed at the lower end of the fiberizing device and collecting the fiber powder to be blown; And a nip roll which can be fixed while maintaining the degree of the fiber passing through the second tension adjusting unit. Further, it is possible to provide a prepreg manufacturing apparatus using reinforcing fiber expansion devices using compressed air and a spreading bar.