Patent ID: 8992401
Filing Date: 2015-03-31
Classification: B31B

Abstract:
1. An automatic machine for making curvilinear tubes or boxes covered with paper or cardboard and having a curvilinear outline, having a conveyor for conveying to a covering station a tube or a box having a first and a second end, wherein the covering station comprises: a first sub-station equipped with a spindle, able to engage in the tube or the box and cause it to rotate relative to a horizontal axis, and operating in conjunction with a feeder for linear feed of a pre-glued covering sheet, so as to connect the covering sheet to an outer wall of the tube or the box; a second, folding over sub-station equipped with a folding over device operated on command for covering the second, open end of the box with an excess edge of the covering sheet projecting from said second end, wherein the folding over device comprises a contact element connected to a carrier to be movable radially with respect to the tube or box engaged by the spindle, from a first position, at a distance from the tube or box, and a second position, wherein the contact element, in the second position, interferes with said excess edge of the covering sheet while the spindle rotates the tube or box about its axis.