US 12,090,695 B2
System for manufacturing polymer parts by injection and associated method
Dominique Malfroy, Longchaumois (FR); Laurent Lavina, Thoiria (FR); Philippe Janod, Vescles (FR); and Rémy Michaud, Pratz (FR)
Assigned to Groupe JBT, (FR)
Appl. No. 16/980,649
Filed by Groupe JBT, Molinges (FR)
PCT Filed Mar. 14, 2019, PCT No. PCT/EP2019/056508
§ 371(c)(1), (2) Date Sep. 14, 2020,
PCT Pub. No. WO2019/175361, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 1852207 (FR), filed on Mar. 14, 2018.
Prior Publication US 2021/0016483 A1, Jan. 21, 2021
Int. Cl. B29C 45/33 (2006.01); B29C 45/07 (2006.01); B29C 45/26 (2006.01); B29C 45/72 (2006.01); B29C 45/00 (2006.01); B29C 45/40 (2006.01); B29C 45/73 (2006.01)
CPC B29C 45/7207 (2013.01) [B29C 45/07 (2013.01); B29C 45/261 (2013.01); B29C 45/2628 (2013.01); B29C 45/33 (2013.01); B29C 2045/0094 (2013.01); B29C 2045/4089 (2013.01); B29C 2045/7343 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for manufacturing polymer parts implemented by a system, the system including a material injection portion, a mould having a mould outer portion and being movable between at least an open position and a closed position, and a wedge, the method comprising:
Injecting polymer material by the material injection portion into the mould in the closed position to form at least one part when the material injection portion is connected to the mould;
after injecting polymer material, moving the material injection portion relative to the mould while holding the mould outer portion in contact with the part, said contact between the mould outer portion and the part enabling a cooling of the part;
moving the mould to the open position by releasing the mould outer portion and the mould inner portion, wherein the wedge holds the part in position to avoid the part remaining in contact with the mould outer portion during releasing of the mould outer portion and the mould inner portion.