- Patent Title: 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
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Application No.: US15925849Application Date: 2018-03-20
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Publication No.: US10889919B2Publication Date: 2021-01-12
- Inventor: Tadao Samejima , Ryuichi Ishikawa , Hiroshi Iwata , Yukihiro Mizutori , Masatoshi Kamata , Yasushi Watanabe , Hajime Okutsu
- Applicant: Mitsubishi Chemical Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-207482 20151021,JP2015-217457 20151105,JP2016-058807 20160323
- Main IPC: D01G1/04
- IPC: D01G1/04 ; D06H7/02 ; B29C70/50 ; B26D1/40 ; D01G1/10 ; B29B15/12 ; B26D1/00 ; C03B37/16 ; C08J5/04 ; D04H1/4242
Abstract:
One mode of the invention relates to a producing a device for chopped fiber bundles having a chopper unit including a cutting blade for cutting long fiber bundles, a guide for restricting the travel direction of the fiber bundles to be supplied to the cutting means, and a structure, provided between the chopper unit and the guide, that widens the fiber bundles. The invention also relates to method for producing chopped fiber bundles by widening fiber bundles while restricting the travel direction of the long fiber bundles to be supplied to chopper unit by a guide, and obtaining chopped fiber bundles by cutting the fiber bundles with the chopper unit.
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