US 12,492,093 B2
Stacker module for a converting machine
Olivier Favre, Bussigny (CH); Raoul Michoud, Cossonay-Ville (CH); Jonas Duboux, Saubraz (CH); Olivier Muhlbauer, Penthalaz (CH); Nicolas Brizzi, Martigny (CH); Dimitri Favini, Le Mont-sur-Lausanne (CH); and Pierre Malherbe, Chavornay (CH)
Assigned to BOBST MEX SA, Mex (CH)
Appl. No. 18/040,298
Filed by BOBST MEX SA, Mex (CH)
PCT Filed Jul. 21, 2021, PCT No. PCT/EP2021/070372
§ 371(c)(1), (2) Date Feb. 2, 2023,
PCT Pub. No. WO2022/028891, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 20189090 (EP), filed on Aug. 3, 2020.
Prior Publication US 2024/0270514 A1, Aug. 15, 2024
Int. Cl. B65H 31/30 (2006.01); B31B 50/98 (2017.01); B65G 57/03 (2006.01); B65G 57/112 (2006.01); B65H 29/14 (2006.01); B65H 31/32 (2006.01); B31B 50/06 (2017.01); B31B 50/74 (2017.01)
CPC B65H 31/3081 (2013.01) [B31B 50/98 (2017.08); B65G 57/035 (2013.01); B65G 57/112 (2013.01); B65H 29/14 (2013.01); B31B 50/06 (2017.08); B31B 50/742 (2017.08); B65H 2513/10 (2013.01); B65H 2701/1766 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stacker module for a folder-gluer machine, the stacker module being located downstream of a transfer module in a direction of transportation of the folder-gluer machine and configured to receive folding boxes from the transfer module, wherein the stacker module comprises:
a loading surface configured to receive a plurality of folding boxes and to descend vertically as a number of folding boxes on the loading surface increases,
a linearly movable ejector configured to be moved from a retracted position to an extended position and to eject a stack of folding boxes from the loading surface, and
a front abutment guide configured to move between an abutment position in which the front abutment guide is positioned in front of a front leading edge of the folding boxes as they are deposited onto the loading surface, and a clearing position in which the front abutment guide is positioned distant from the stack and such that the ejector can evacuate the stack from the loading surface,
wherein the ejector comprises a first pusher and a second pusher arranged laterally of each other,
wherein each pusher is linearly displaceable in the direction of transportation and configured to move in unison between the retracted position and the extended position, and
wherein the first and second pushers are laterally and longitudinally displaceable in relation to each other, such that their retracted position and extended position are different.