US 11,780,196 B2
Line for the production of covered cardboard boxes
Alessio Giovanneschi, Montopoli in Val D'Arno (IT); and Pablo Baroni, Vicopisano (IT)
Assigned to EMMECI S.P.A., Cerreto Guidi (IT)
Filed by EMMECI S.P.A., Cerreto Guidi (IT)
Filed on Aug. 2, 2021, as Appl. No. 17/391,954.
Application 17/391,954 is a division of application No. 16/177,522, filed on Nov. 1, 2018, granted, now 11,104,094.
Claims priority of application No. 102017000131292 (IT), filed on Nov. 16, 2017.
Prior Publication US 2021/0362454 A1, Nov. 25, 2021
Int. Cl. B31B 50/04 (2017.01); B31B 50/00 (2017.01); B31B 50/26 (2017.01); B31B 50/74 (2017.01); B31B 50/07 (2017.01); B31B 50/62 (2017.01); B31B 120/50 (2017.01); B31B 105/00 (2017.01); B31B 110/35 (2017.01)
CPC B31B 50/044 (2017.08) [B31B 50/005 (2017.08); B31B 50/006 (2017.08); B31B 50/042 (2017.08); B31B 50/07 (2017.08); B31B 50/26 (2017.08); B31B 50/624 (2017.08); B31B 50/742 (2017.08); B31B 2105/001 (2017.08); B31B 2110/35 (2017.08); B31B 2120/50 (2017.08)] 17 Claims
OG exemplary drawing
 
1. A method of producing covered cardboard boxes, the method comprising:
transporting a plurality of covering blanks from a loading position to an unloading position, by means of a conveyor unit including a belt driven intermittently by a conveyor actuator in a sequence of movements, starting at respective movement instants and alternated with corresponding stops;
picking up the covering blanks and feeding them to the loading position of the belt by means of a feed unit, in a sequence of feed instants corresponding to the sequence of movements;
receiving box blanks in an erecting machine and folding the box blanks to form corresponding boxes;
positioning each box in alignment on a corresponding covering blank disposed on the belt, by a positioner at a coupling position interposed between the loading position and the unloading position;
spreading glue on one face of the covering blanks which will come into contact with a corresponding surface of the boxes to be covered;
transporting the boxes coupled to the respective covering blanks as far as the unloading position by means of the conveyor unit;
feeding the boxes coupled to the respective covering blanks to a covering machine which folds each covering blank into contact with a respective box in such a way as to cover the respective box;
adjustably setting, through a control unit, a phase displacement of the feed instants relative to corresponding movement instants of the belt;
with the control unit, receiving format data representing a format of the covering blanks; and
by the control unit, setting working data as a function of the format data, the working data being representative of the sequence of movements of the belt,
wherein the control unit adjusts the phase displacement of the feed instants relative to a sequence of stops of the belt responsive to the working data.