Double-endless-belt conveyor, turnover module incorporating such a conveyor and folding package production line incorporating such a module

Double-transport-belt conveyor that can be incorporated in a folding package turnover module (3), comprising first and second single-transport-belt conveyor subassemblies (42AL, 42AH) arranged facing each other symmetrically relative to a pinching plane of the conveyor (42A), first and second sets of rollers (423L, 423H) incorporated respectively in the first and second conveyor subassemblies (42AL, 42AH) and distributed on either side of the pinching plane over a length of transport of the conveyor (42A), the first set of rollers (423L) guiding a first belt (420AL) of the first conveyor subassembly (42AL) and the second set of rollers (423H) guiding a second belt (420AH) of the second conveyor subassembly (42AH), characterized in that the first and second conveyor subassemblies (42AL, 42AH) respectively comprise first and second sets of vertically arranged jacks (424L, 424H) which are associated respectively with the first and second sets of rollers (423L, 423H), each of the rollers (423L, 423H) being mounted on a dedicated respective jack (424L, 424H).