Prepreg winding method and apparatus

摘要

A prepreg winding method includes the steps of preparing a plate, a mandrel movable toward and away from the plate, and a press roll movable toward and away from the mandrel and having an axis parallel to the mandrel; mounting a prepreg on the plate, the prepreg being formed by impregnating reinforced fibers with a thermosetting resin sheet; winding a leading end of the prepreg mounted on the plate around the mandrel, and making a pressing force act on the plate and the mandrel therebetween with the prepreg sandwiched between the plate and the mandrel and making a pressing force act on the mandrel and the press roll therebetween with the prepreg sandwiched between the mandrel and the press roll; and winding the prepreg around the mandrel by rotating the mandrel and the press roll.

主权项

1. A prepreg winding method comprising:
a step of preparing a plate, a mandrel which is movable toward and away from said plate, and a press roll which is movable toward and away from said mandrel and has an axis parallel to said mandrel; a step of mounting a laminated prepreg on said plate, said laminated prepreg being formed by layering a plurality of prepregs with a separating sheet interposed between adjacent prepregs, each prepreg formed by impregnating reinforced fibers with a thermosetting resin sheet; a step of winding a leading end of said laminated prepreg, mounted on said plate, around said mandrel, and making a pressing force act on said plate and said mandrel therebetween with said laminated prepreg sandwiched between said plate and said mandrel and making a pressing force act on said mandrel and said press roll therebetween with said laminated prepreg sandwiched between said mandrel and said press roll; and a step of winding said laminated prepreg around said mandrel by rotating said mandrel and said press roll, while removing each said separating sheet during winding of said layered prepregs around said mandrel, by supplying a relative moving force between said plate and said mandrel with said mandrel and said press roll pressed against each other, said relative moving force acting in a direction orthogonal to said axis of said mandrel with respect to a plan view.