초록

An improvement in a bag folding machine of the type which winds the bag into a roll in a rolling cage, the improvement which comprises utilizing the same rolling components used to roll the bag to also flatten fold the rolled bag prior to discharge.

대표청구항 ▼

In a machine for rolling and flatten-folding flexible sheet material, having rolling means for rolling the material into a roll, discharge means for removing the rolled material from said rolling means, inlet means for introducing the material into said rolling means, and folding means for folding t

In a machine for rolling and flatten-folding flexible sheet material, having rolling means for rolling the material into a roll, discharge means for removing the rolled material from said rolling means, inlet means for introducing the material into said rolling means, and folding means for folding the rolled material as desired after removal from said rolling means, the improvement which comprises: Rolling means comprising a rolling cage having an inner surface arranged in an arc circumscribing a minimum of 270°of a circle for defining said rolling cage, said rolling cage being divided into a circumferentially disposed first roller section and a circumferentially disposed second roller section, said first roller section having a first movable curved surface on its inward side and said second roller section having a second movable curved surface on its inward side, said first and second movable curved surfaces defining a portion of said 270°arc and being adapted for driving said material into a roll, and said first and second roller sections being divided by an intake passage for introducing said material into said rolling cage and an outlet passage for discharging said material from said rolling cage; means for moving said first and second movable curved surfaces in undirectional movement during rolling of said material in said rolling cage; and means for reversing movement of said second movable curved surface for discharge of rolled material from said roller section.