Patent ID: 6543205
Filing Date: 2003-04-08
Classification: B65B

Abstract:
A form and seal unit for producing aseptic sealed packages, containing a pourable food product, from a tube of packaging material filled with the food product and fed along a vertical path comprising:a fixed structure and two forming assemblies interacting alternately and cyclically with the tube of packaging material, and having respective slides movable vertically in reciprocating manner with respect to the structure; respective pairs of jaws being carried by the slides, and have sealing members movable between an open position and a closed position in which the sealing members cooperate with the tube of packaging material; respective pairs of forming flaps being carried by a respective one of the jaws and have a half-shell forming portion, the forming flaps of each forming assembly being movable between a withdrawn position spaced from said tube, and a forward position in which said respective half-shell forming portions enclose said tube; cams for controlling the closing movement of the forming flaps from the withdrawn position to the forward position, and includes cams carried by the forming flaps and interacting, during the movement of said jaws, with rollers fixed to the structure; wherein in the closed position, the respective jaws form a cavity of predetermined volume.