The device comprises two continuous belts disposed in parallel and carrying opposing cores, the belts acting on wax in a liquid state which is inserted into the entry of the device, with both moving belts in opposition. The entry comprises, successively: a scraping zone disposed straight with respect to the band； a zone for opening the cores, which has a certain curvature designed to receive the first injection of wax； and a third straight zone for sealing and expelling the excess wax, and the exit, the longest length of the upper belt, comprises multiple groups of magnetic and non-magnetic rollers for the local curving of the belt to progressively release the honeycomb.
