Method for producing fiber-reinforced resin molding material, and apparatus for producing fiber-reinforced resin molding material
US12023876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jan 30, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
What is provided is a method for stably producing a fiber-reinforced resin molding material by splitting a fiber bundle such that a split portion becomes long while anon-split portion is shortened. A method for producing a fiber-reinforced resin molding material in which a cut fiber bundle is impregnated with a resin, the method comprising a splitting step of splitting the fiber bundle with a splitting machine at intervals in a longitudinal direction and a cutting step of cutting the fiber bundle at intervals in the longitudinal direction after the splitting step, in which the splitting machine comprises a rotary blade having a releasing section and a spacer member adjacent to the rotary blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.