A fiber stacking device (100) of the invention includes a collecting/stacking recess (22) in which a shaped-product material is stacked and which is formed on an outer surface thereof, and stacks a shaped-product material, which is transported on an air stream generated by suction from inside, on a bottom surface (22a) of the recess (22), which is formed on a porous member (27) including a plurality of suction holes, while transporting the recess (22) in one direction. An adjuster (10) is arranged on an inner surface (27b) of the porous member (27). The adjuster (10) includes a plurality of openings, and the area of an opening end portion of the opening relatively distant from the porous member (27) is smaller than the area of an opening end portion thereof relatively close to the porous member.本發明之纖維堆積裝置(100)係於外表面具有供成形體材料纖維堆積之集聚用凹部(22),且一面沿一方向搬送該凹部(22),一面使隨著藉由自內部側之抽吸而產生之空氣流而搬送之成形體材料於由具有複數個抽吸孔之多孔性構件(27)形成之該凹部(22)之底面(22a)上纖維堆積。於多孔性構件(27)之內表面(27b)側配置有調整體(10)。調整體(10)具有複數個開口部,且該開口部係距多孔性構件(27)相對較遠一方之開口端部與相對較近一方之開口端部相比開口面積較小。2X‧‧‧方向2Y‧‧‧方向8‧‧‧第1層9‧‧‧第2層10‧‧‧調整體21‧‧‧外周面22‧‧‧集聚用凹部22a‧‧‧底面25‧‧‧抽吸調整板26‧‧‧空間板27‧‧‧多孔性板27a‧‧‧外表面27b‧‧‧內表面28‧‧‧圖案形成板28a‧‧‧外表面81‧‧‧第1開口部82‧‧‧開口部劃分形成部83‧‧‧MD劃分形成構件84‧‧‧CD劃分形成構件91‧‧‧第2開口部92‧‧‧CD劃分形成構件對應部及其近旁93‧‧‧MD劃分形成構件對應部及其近旁R2‧‧‧方向W1‧‧‧寬度W2‧‧‧寬度W3‧‧‧寬度W4‧‧‧寬度
