Patent ID: 8389877

Claim:
A device ( 1 ) for weighing successive filled flexible packs provided with a planar end portion ( 2 a ), the device comprising: a holding means ( 3 ) for the flexible packs to be weighed; and a weighing means ( 4 ), wherein the holding means ( 3 ) for the flexible packs ( 2 ) comprises: first and second endless belts ( 3 a , 3 b ) simultaneously moving forward and describing respective coplanar paths, demarcating between the respective coplanar paths and forward movement sections a space configured to receive insertion of the planar end portions of the successive packs to be weighed, wherein the planar end portions are seized and suspended between the two endless belts ( 3 a , 3 b ), the flexible packs being conveyed by the movement of the endless belts ( 3 a , 3 b ) along the forward movement sections of said endless belts ( 3 a , 3 b ), the weighing means comprising ( 4 ) a weight sensor configured to measure weight of an assembly formed by the holding means ( 3 ) for the flexible packs, and wherein the holding means is provided with a support means for the conveyed flexible packs, on which the flexible packs slide during the conveyance by endless belts in the weighing device, thereby preventing swinging of said flexible packs while the flexible packs remain suspended from the endless belts.