US 11,952,153 B2
Self-propelled wrapping machine and method of wrapping
Pierangelo Laghi, Acquaviva-Gualdicciolo (SM); and Luca Delbaldo, Acquaviva-Gualdicciolo (SM)
Assigned to ROBOPAC S.P.A., Acquaviva-Gualdicciolo (SM)
Appl. No. 17/434,095
Filed by ROBOPAC S.P.A., Acquaviva-Gualdicciolo (SM)
PCT Filed Feb. 25, 2020, PCT No. PCT/IB2020/051593
§ 371(c)(1), (2) Date Aug. 26, 2021,
PCT Pub. No. WO2020/174388, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 102019000002869 (IT), filed on Feb. 27, 2019.
Prior Publication US 2022/0135263 A1, May 5, 2022
Int. Cl. B65B 11/02 (2006.01); B65B 41/14 (2006.01); B65B 57/12 (2006.01); B65B 61/06 (2006.01)
CPC B65B 11/025 (2013.01) [B65B 41/14 (2013.01); B65B 57/12 (2013.01); B65B 61/06 (2013.01); B65B 2210/14 (2013.01)] 12 Claims
OG exemplary drawing
 
1. Self-propelled wrapping machine movable around a load to wrap the load with a film made of plastic material in a wrapping cycle, comprising a self-propelled carriage and a upright fixed to said carriage and slidably supporting an unwinding unit provided at least with a reel of film, characterized in that it comprises:
a first gripping unit that is supported by, and connected to, said carriage, and is movable and arranged to hold and unwind an initial flap of film from said unwinding unit in an initial step of said wrapping cycle; and
a second gripping unit that is supported by, and connected to, said carriage, and is movable and arranged to position and release an anchoring element on said initial flap of film unwound from said first gripping unit, in said initial step of said wrapping cycle, so as to fix said initial flap of film to a supporting plane on which said self-propelled wrapping machine moves, and to grasp and lift said anchoring element from said supporting plane so as to disengage it from said initial flap of film after at least one turn of said self-propelled wrapping machine around said load wrapping the load with said film supplied by said unwinding unit.