US 12,441,046 B2
Method and system for producing plastic containers
Roberto Catelli, Parma (IT); Marco Sgorlon, San Dona' di Piave (IT); Manuel Rosada, Vittorio Veneto (IT); and Stefano Tonti, Parma (IT)
Assigned to SIAPI S.R.L., San Vendemiano (IT)
Appl. No. 17/905,895
Filed by SIAPI S.R.L., San Vendemiano (IT)
PCT Filed Mar. 10, 2021, PCT No. PCT/IB2021/051989
§ 371(c)(1), (2) Date Sep. 8, 2022,
PCT Pub. No. WO2021/181299, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 102020000005350 (IT), filed on Mar. 12, 2020.
Prior Publication US 2023/0118628 A1, Apr. 20, 2023
Int. Cl. B29C 49/12 (2006.01); B29C 49/42 (2006.01); B29C 49/64 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01)
CPC B29C 49/42073 (2022.05) [B29C 49/12 (2013.01); B29C 49/42065 (2022.05); B29C 49/42101 (2022.05); B29C 49/6418 (2013.01); B29K 2067/003 (2013.01); B29L 2031/7158 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for producing plastic containers from preforms, comprising:
a plurality of blowing stations comprising at least a first and a second blowing station (31, 32) for blowing the preforms;
a movement system (2) for moving the preforms comprising a delivery line (21) for delivering the preforms towards said blowing stations;
a heating means (4) for heating the preforms located along the delivery line (21);
wherein the delivery line (21) comprises a first and a second outlet zone (211, 212) for the outlet of the preforms from said delivery line (21); the first and the second preform outlet zone (211, 212) being in mutually distinct positions and being intended to supply respectively the first blowing station (31) and the second blowing station (32); the preforms entering the first and the second blowing station (31, 32) are temporally staggered from one another;
the movement system (2) comprising a delivery means (200) for delivering the preforms between the blowing stations, said delivery means (200) in turn comprising a plurality of carriages (220) for moving the preforms, said plurality of carriages (220) configured to move independently from one another;
the delivery line (21) comprising a circuit (205) that defines a linear trajectory (20) that is closed onto itself for said plurality of carriages (220); said heating means (4) and said first and said second outlet zone (211, 212) being located along said closed trajectory (20), said first and said second outlet zone (211, 212) allowing the outlet of the preforms from said circuit (205);
the movement system (2) comprising a magnetic linear motor which extends along the circuit (205).