Mandrel self - calibrator for the mounting body u.s. from up a flat cardboard undulates or the like.

摘要

The method involves extracting an undulated cardboard cut (2) from a store (1) by a manipulator having vent holes. An intermediary panel maintained by the manipulator is supported on an input zone so that folding lines (25, 26) longitudinally bordering the panel coincides with parallel longitudinal stops (9) of the input zone. A mandrel is widened in an advance direction of the cut till a forming zone whose dimensions corresponds to an exact side inside an American box (3), when the box is formed.