Production device and method for opened fiber bundle and prepreg production method
AssigneeToray Industries, Inc.
InventorsKiyotsugu Tanaka, Hiroshi Ohtani, Hidetaka Matsumae, Seiji Tsuji, Daisaku Akase
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Abstract
An apparatus and method for producing a spread fiber bundle using a fiber-spreading device composed of a group of rollers and a base body reciprocated to be repetitively brought into contact with and kept away from a running fiber bundle, and a method for producing a prepreg. Fiber bundle can be stably and efficiently spread even in the case where the fiber bundle to be spread are filaments having a high elastic modulus such as carbon filaments or where the carbon fiber bundle conveying speed is higher.
Claims18
An apparatus for producing a spread fiber bundle, comprising a group of at least two rollers kept in contact with a running fiber bundle, and a base body reciprocating to be repetitively and periodically repeatedly brought into contact with and kept away from the running fiber bundle as the axial center of said base body moves relative to the running fiber bundle, the arrangement being such that the remaining fiber bundle between the rollers does not receive pressure in the non-contact state, said base body being provided between at least a pair of rollers adjacent to each other, of said group of rollers.
Dependencies are inferred from the claim text.