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    • 7. 发明授权
    • Bottom pre-folder for carton with folded-in gusset tips
    • 用于纸箱的底部预夹,带折叠角撑板提示
    • US07380389B2
    • 2008-06-03
    • US11379002
    • 2006-04-17
    • Paul J. Anderson
    • Paul J. Anderson
    • B65B43/26
    • B31B50/00B31B50/52
    • A bottom prefolding assembly prefolds the bottom panels of a package having a bottom wall formed with in-folded gusset tips. The prefolding assembly infolds the bottom gusset panels, leading and trailing panels of a carton and in-folds the gusset panel tips prior to forming the sealed carton bottom. The assembly includes a drive, first and second folding arms configured to contact and inwardly prefold the lead and trailing panels and a forming arm movable with the first and second folding arms. The forming arm has a pair of pivotable finger elements mounted thereto. The finger elements each having a carton engaging portion to engage the panel portions that form the gusset tips and fold the panel portions in a direction opposite of the folding of the gusset panels.
    • 底部预折叠组件预先折叠具有形成有折叠的角撑板顶端的底壁的包装的底部面板。 折叠组件将底部角撑板,纸板的前导面板和后面板折叠,并在形成密封的纸箱底部之前折叠角撑板面板顶部。 组件包括驱动器,第一和第二折叠臂,其构造成接触并向内预折叠引线和后板,以及可与第一和第二折叠臂一起移动的成形臂。 成形臂具有安装在其上的一对可枢转指状元件。 每个手指元件具有纸板接合部分,以接合形成角撑板末端的面板部分,并且在与折叠角撑板面板相反的方向上折叠面板部分。