Patent ID: 8978349
Filing Date: 2015-03-17
Classification: B29C,B65B

Abstract:
1. A horizontal packaging machine comprising a plurality of stations arranged in a horizontal sequence through which a flexible heat-sealable sheet is moved, the stations including: an uncoiling station for uncoiling said flexible heat-sealable sheet, a folding station for the formation of a V-shaped flexible sheet by V-folding the uncoiled flexible heat-sealable sheet, a sealing station for the sealing of bottom and side ends of the V-shaped flexible sheet to form side-joined consecutive packets, said sealing station comprising sealing means comprising two opposing heated plates placed on either sides of the trajectory of the V-shaped flexible sheet, said heated plates being relatively movable with respect to each other between a far position where there is a gap between the heated plates through which the V-shaped flexible sheet passes and a close position at which the V-shaped flexible sheet is firmly trapped between the heated plates and the end sealing is performed, a cutting station comprising cutting means comprising shears with two opposite blades relatively movable with respect to each other and arranged on either sides of the trajectory of said side-joined consecutive packets for the separation of the side-joined consecutive packets by side cutting them when the pass between the two opposite blades, a transporting station comprising a horizontal carrousel for the individual transportation of the previously separated packets to a filling station, said horizontal carrousel moving at a certain speed, said filling station, which comprises movable dosage devices arranged to move according to a continuous circular trajectory, at a speed that coincides with said certain speed at which said horizontal carrousel moves, wherein for a considerable part of said continuous circular trajectory outputs of said dosage devices remain aligned with upper openings of the consecutive packets transported by the horizontal carrousel, the dosage devices being configured for filling the packets during said alignment by depositing a product therein through their respective upper openings, and a final closing station for closing said upper openings of the packets containing the packaged product filled at the filling station, wherein the sealing and cutting stations comprise longitudinal guides for the assembly of respective transportation carriages of said sealing means and said cutting means, and linear displacement means for linearly moving said transportation carriages along their corresponding longitudinal guides according to alternate linear movements forwards and backwards in the trajectory of the flexible sheet, at least the forward linear movement being provided at the same speed as the continuous forward movement of the flexible sheet, such that the carriages are placed in respective operative positions to carry out the respective sealing and cutting of consecutive packets while the flexible sheet moves.