| 主权项 |
1. A laying head for manufacturing fiber layers and structural component preforms, comprising:
an inlet configured to feed in a plurality of dry rovings, each dry roving having a roving width in the range of 5 to 100 mm and a roving thickness in the range of 0.2 to 0.6 mm, a fiber conveying device configured to simultaneously and mutually-independently convey, in a fiber supplying direction, the rovings fed-in via the inlet, an outlet arranged downstream of the fiber conveying device in the fiber supplying direction and configured to simultaneously lay the plurality of rovings on a workpiece carrier to manufacture a three-dimensional preform, a fiber-cutting device disposed downstream of the fiber conveying device and upstream of the outlet in the fiber supplying direction and configured to cut the rovings, and a nozzle configured to apply a medium onto, and to embed the medium in, the plurality of dry rovings, the nozzle having a slit-shaped through gap, wherein the slit-shaped through gap has a nozzle width that extends in a slit plane (1-b) and perpendicular to the fiber supplying direction and a nozzle height that extends in a thickness direction (d) that is perpendicular to the slit plane (1-b), the nozzle width is equal to one of: (i) the roving width plus a margin of 0.025 to 0.2 mm, wherein a plurality of slit-shaped through gaps are respectively provided for the plurality of dry rovings, or (ii) the total roving width of all of the plurality of dry rovings plus a margin of 0.025 to 0.2 mm, wherein the plurality of dry rovings pass collectively through one slit-shaped through gap, and the nozzle height is equal to the roving thickness of the dry roving in the thickness direction (d) plus a margin of 0.025 to 0.2 mm. |
