Patent ID: 7895812

Claim:
A machine for raising planar articles, made of cardboard, corrugated cardboard or plastics, in order to manufacture box-shaped or crate-shaped packagings, and where each article is provided with a bottom panel, longitudinal side panels, transverse end panels and optionally a cover panel the machine comprising: at least one main conveyor, the planar articles being advanced one at a time by said main conveyor; a side forming device able to exert pressure on the longitudinal side panels of each article and rotating them predominantly 90° upwards with respect to a plane of the bottom panel; a transversely arranged end forming device movable in longitudinal direction (A) with respect to the main conveyor and able to exert pressure on said end panels and turning the end panels predominantly 90° with respect to the plane of said bottom panel, when the end panels of a planar article are positioned opposite said end forming device; and a joining device for joining the side panels and the end panels of each article, the joining device comprising an inner pivotable support plate movable between a front position at a front corner of the packaging and a rear position at a rear corner of the packaging, and wherein the transversely arranged end forming device comprises a low retaining plate mounted on a secondary conveyor belt, said low retaining plate being movable from a first position just in front of the front end panel of the packaging to a second position just behind the rear end panel of the packaging by the secondary conveyor belt, where a clamping action between the retaining plate and the support plate is provided in both the first position and the second position.