US 12,479,130 B2
Production of rubber mixtures in a rubber mixture production line incorporating one or more twin-screw mixing and extrusion machines
Frederic Barriere, Clermont-Ferrand (FR); Bruno Dussardier, Clermont-Ferrand (FR); Laurent Huc, Clermont-Ferrand (FR); Aurelien Tournebize, Clermont-Ferrand (FR); and Randria Tsilavo, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 18/010,987
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Jun. 10, 2021, PCT No. PCT/EP2021/065612
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/254870, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 2006265 (FR), filed on Jun. 16, 2020.
Prior Publication US 2023/0226722 A1, Jul. 20, 2023
Int. Cl. B29B 7/74 (2006.01); B29B 7/18 (2006.01); B29B 7/56 (2006.01); B29B 7/82 (2006.01)
CPC B29B 7/7485 (2013.01) [B29B 7/183 (2013.01); B29B 7/566 (2013.01); B29B 7/7461 (2013.01); B29B 7/7495 (2013.01); B29B 7/82 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A rubber mixture production line for performing multi-pass mixing sequences, the production line comprising:
at least a first mixing line comprising:
at least one internal mixer that performs a masterbatch manufacturing process;
a hot mixing line disposed downstream of the internal mixer and comprising at least one twin-screw mixing machine that performs a mixing process of the rubber mixture exiting the internal mixer;
a transfer belt installation disposed downstream of the hot mixing line for controlling a temperature and an addition of water in a rubber mixture exiting the hot mixing line;
a batch-off installation disposed downstream of the transfer belt installation for performing an anti-sticking and cooling process of the rubber mixture exiting the transfer belt installation; and
an end-of-line installation disposed downstream of the batch-off installation that performs one or more end-of-line processes on the rubber mixture; and
at least one second mixing line comprising:
a twin-screw mixing machine that performs a mixing process of the rubber mixture exiting the first line;
a transfer belt installation disposed downstream of the twin-screw mixing machine for controlling a temperature and an addition of water in a rubber mixture exiting the twin-screw mixing machine;
a cold mixing line disposed downstream of the transfer belt installation and comprising at least one twin-screw mixing machine that performs a mixing process of the rubber mixture exiting the transfer belt installation;
a batch-off installation disposed downstream of the cold mixing line that performs an anti-sticking and cooling process of the rubber mixture leaving the cold mixing line; and
an end-of-line installation disposed downstream of the batch-off installation that performs one or more end-of-line processes of the rubber mixture,
wherein the second line performs a final mixing process during a last pass of a multi-pass rubber mixing sequence.