US 12,420,498 B2
Device and method for producing preforms
Erik Berg, Oldenburg (DE)
Assigned to Broetje-Automation GmbH, Rastede (DE)
Appl. No. 17/639,128
Filed by Broetje-Automation GmbH, Rastede (DE)
PCT Filed Jun. 3, 2020, PCT No. PCT/EP2020/065311
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/037405, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10 2019 123 384.4 (DE), filed on Aug. 30, 2019.
Prior Publication US 2022/0288876 A1, Sep. 15, 2022
Int. Cl. B29C 70/50 (2006.01); B29B 11/16 (2006.01); B29C 70/54 (2006.01); B29L 31/30 (2006.01)
CPC B29C 70/50 (2013.01) [B29B 11/16 (2013.01); B29C 70/545 (2013.01); B29L 2031/3076 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for producing preforms for aircraft structural components,
wherein the device has a supply unit, which is designed to supply a layered structure having at least one material ply of a thermally activatable, flexible fiber composite material, together with a protective film arranged in each case on at least one outer side of the layered structure,
wherein the device has at least one shaping unit, which is arranged downstream of the supply unit in a conveying direction and is designed to shape the layered structure supplied,
wherein the layered structure, together with the respective protective film, can be fed to the shaping unit or to one of the shaping units with a cross-sectional profile with which the protective film or at least one of the protective films extends along a straight line, and wherein the layered structure, together with the respective protective film, is transversely shaped by the shaping unit into a predetermined non-planar cross-sectional profile; and
wherein the device comprises a pull-off unit designed to pull off the protective film or protective films, which pull-off unit is arranged in conveying direction downstream of at least one of the shaping units.