PRODUCING DEVICE AND PRODUCING METHOD FOR CHOPPED FIBER BUNDLES, PRODUCING DEVICE AND PRODUCING METHOD FOR FIBER-REINFORCED RESIN FORMING MATERIALS, CUTTING BLADE FOR CARBON FIBER BUNDLES, AND ROTARY CUTTER FOR CARBON FIBER BUNDLES

摘要

One mode of the invention relates to a producing device for chopped fiber bundles comprising: cutting means including a cutting blade for cutting long fiber bundles, guide means for restricting the travel direction of the fiber bundles to be supplied to the cutting means, and widening means provided between the cutting means and the guide means and for widening the fiber bundles; and a producing method for chopped fiber bundles comprising: widening fiber bundles by widening means provided between a cutting means and guide means while restricting the travel direction of the long fiber bundles to be supplied to the cutting means by the guide means, and obtaining chopped fiber bundles by cutting the fiber bundles with the cutting means including a cutting blade.