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AssigneeSITMA MACHINERY S.p.A.
InventorsAris BALLESTRAZZI, Lamberto Tassi
Estimating the term…
A folding assembly (10) of a continuous sheet (F) of packaging material, in particular paper, applicable to automatic packaging machines (100) of the type comprising a sliding plane (101) for conveying a continuous sheet (F) of packaging material, in particular paper, along a conveying direction (DT), said sliding plane (101) comprising an entrance end (102) for entering the continuous sheet of paper (F) and two opposite sides (103, 104) parallel to the conveying direction (DT), and a feeding assembly (105) for feeding the continuous sheet (F) of packaging material along a feeding plane (106) which is orthogonal or substantially orthogonal to the conveying direction (DT) and defined at the entrance end (102) of the sliding plane (101), in which the continuous sheet (F) of packaging material is fed along the feeding plane (106) according to a feeding direction (DA) orthogonal or substantially orthogonal to the sliding plane (101) and is deviated of a right or a substantially right angle while passing from the feeding plane (106) to the sliding plane (101), in which the folding assembly (10) comprises, for at least one of the opposite sides (103, 104) of the sliding plane (101), a respective block (11) which is associable with at least one opposite side of the sliding plane (101) at the entrance end (102) and which is provided with a rectilinear edge (12) which, considering the folding assembly (10) in the mounting configuration on the packaging machine (100), faces the feeding plane (106) and is substantially parallel to the feeding direction (DA) so as to define a longitudinal creasing element of the continuous sheet (F) of packaging material for folding a corresponding longitudinal flap (F1, F2) thereof and in which the folding assembly (10) is characterised in that it comprises a body (13) provided with a cone-sector surface (S) which is associated with the block (11) with the vertex (V) of the cone-sector surface (S) arranged at the outlet end (12′) of the rectilinear edge (12) of the continuous sheet (F) of packaging material provided with the longitudinal creasing exits and which, considering the folding assembly (10) in the mounting configuration on the packaging machine (100), has a conicity converging towards the entrance end (102) of the sliding plane (101), in which, considering the folding assembly (10) in the mounting configuration on the packaging machine (100), the cone-sector surface (S) supports the longitudinal flap (F1, F2) during the longitudinal creasing and accompanies it during the folding along the longitudinal creasing.
A folding assembly of a continuous sheet of packaging material applicable to automatic packaging machines comprising a sliding plane for conveying a continuous sheet of packaging material along a conveying direction, said sliding plane comprising an entrance end for entering said continuous sheet of packaging material and two opposite sides parallel to said conveying direction, and a feeding assembly for feeding said continuous sheet of packaging material along a feeding plane which is orthogonal or substantially orthogonal to said conveying direction and defined at said entrance end of said sliding plane, wherein said continuous sheet of packaging material is fed along said feeding plane according to a feeding direction orthogonal or substantially orthogonal to said sliding plane and is deviated of a right or a substantially right angle while passing from said feeding plane to said sliding plane, wherein said folding assembly comprises, for at least one of the opposite sides of said sliding plane, a respective block which is associable with said at least one opposite side of said sliding plane at said entrance end and which is provided with a rectilinear edge which, considering said folding assembly in the mounting configuration on said packaging machine, faces said feeding plane and is substantially parallel to said feeding direction so as to define a longitudinal creasing element of said continuous sheet of packaging material for folding a corresponding longitudinal flap thereof and wherein said folding assembly comprises a body provided with a cone-sector surface which is associated with said block with the vertex of said cone-sector surface arranged at the outlet end of said rectilinear edge at which said continuous sheet of packaging material provided with said longitudinal creasing exits and which cone-sector surface, considering said folding assembly in the mounting configuration on said packaging machine, has a conicity converging towards said entrance end of said sliding plane, wherein, considering said folding assembly in the mounting configuration on said packaging machine, said cone-sector surface supports said longitudinal flap during said longitudinal creasing and accompanies it during the folding along said longitudinal creasing.
Dependencies are inferred from the claim text.