US 12,246,508 B2
Method, cutting device and apparatus particularly for manufacturing pouches with rounded corners
Filippo Furlotti, Cazzola (IT); Luca Catellani, Ozzano Dell'Emilia (IT); and Andrea Trevisan, Ozzano Dell'Emilia (IT)
Assigned to I.M.A. Industria Macchine Automatiche S.P.A., Ozzano Dell'Emilia (IT)
Appl. No. 18/247,678
Filed by I.M.A. INDUSTRIA MACCHINE AUTOMATICHE S.P.A., Ozzano Dell'Emilia (IT)
PCT Filed Nov. 11, 2021, PCT No. PCT/EP2021/081431
§ 371(c)(1), (2) Date Apr. 3, 2023,
PCT Pub. No. WO2022/106300, PCT Pub. Date May 27, 2022.
Claims priority of application No. 102020000027989 (IT), filed on Nov. 23, 2020.
Prior Publication US 2023/0405959 A1, Dec. 21, 2023
Int. Cl. B31B 70/14 (2017.01); B26D 1/08 (2006.01); B31B 155/00 (2017.01); B31B 160/10 (2017.01)
CPC B31B 70/148 (2017.08) [B26D 1/085 (2013.01); B31B 2155/00 (2017.08); B31B 2160/106 (2017.08)] 13 Claims
OG exemplary drawing
 
1. A cutting method, for manufacturing pouches of flexible containers with rounded corners, comprising the steps of:
stepwise advancing a ribbon, comprising pockets formed between layers thereof, along a substantially rectilinear feeding direction, said ribbon comprising a plurality of recesses along at least one longitudinal edge thereof that is substantially parallel to said substantially rectilinear feeding direction;
transverse cutting from one longitudinal edge to another of said ribbon and substantially at each one of said recesses, said transverse cutting being performed by means of at least one blade, said at least one blade being movable with respect to said ribbon substantially along a cutting plane that is transverse to said ribbon and to said feeding direction;
wherein substantially at each one of said recesses, said transverse cutting of the ribbon is performed by means of at least two strokes of said at least one blade,
and wherein between a first stroke and a second stroke of said at least two strokes of said at least one blade a relative translation is performed between said cutting plane and said ribbon substantially along said feeding direction, wherein said second stroke removes any cutting defects of the first stroke in a region of said recess.