Preparation method and equipment of fiber reinforced composite material

The invention provides a preparation method and equipment of a fiber reinforced composite material. The equipment mainly comprises an inner-layer fiber supply device, a first glue injection system, a first glue injection groove, a core material forming device, an outer-layer fiber supply device, a second glue injection system, a second glue injection groove, a curing device, a traction device, a cutting device and the like. The preparation method mainly comprises the following steps: performing semi-curing molding on the inner-layer fiber and the first resin to obtain the core material, then laying or winding the outer-layer fiber on the surface of the core material, fully infiltrating the outer-layer fiber with the second resin, curing, and cutting to obtain the fiber reinforced composite material product. According to the double-layer structure, the interface of the inner layer and the interface of the outer layer are mutually infiltrated, a high-strength transition layer is formed through covalent bond cro