	US 11,904,503 B2
	Dosage control in the manufacture of tires
Aurelien Tournebize, Clermont-Ferrand (FR); Sebastien Lafond, Clermont-Ferrand (FR); and Jean-Claude Sabatier, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 16/634,373
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Jul. 24, 2018, PCT No. PCT/EP2018/070032 § 371(c)(1), (2) Date Jan. 27, 2020, PCT Pub. No. WO2019/020622, PCT Pub. Date Jan. 31, 2019.
Claims priority of application No. 1757150 (FR), filed on Jul. 27, 2017.
Prior Publication US 2020/0254651 A1, Aug. 13, 2020
Int. Cl. B29B 7/24 (2006.01); B29B 7/00 (2006.01); B29B 7/28 (2006.01); B29B 7/74 (2006.01); B29B 15/02 (2006.01)

CPC B29B 7/244 (2013.01) [B29B 7/005 (2013.01); B29B 7/286 (2013.01); B29B 7/7495 (2013.01); B29B 15/023 (2013.01)]

18 Claims

13. A system for creating unvulcanized rubber batches prior to mixing them in a rubber mixer, including a selection of at least one batch for mixing in the rubber mixer, wherein each batch corresponds to a selection of uncured rubber bales (A_I, B_I, C_I), that correspond to natures of rubber composition (A, B, C) having predetermined characteristics, the system comprising:

a bale supply station where uncured rubber bales (A_I, B_I, C_I) are provided from the corresponding natures;

a cutting station that cuts at least one bale (A_I, B_I, C_I) into pieces (A_IJ, B_IJ, C_IJ);

a weighing station for weighing the uncured rubber bales (A_I, B_I, C_I) and the pieces (A_IJ, B_IJ, C_IJ) removed therefrom;

a transport system that transfers the uncured rubber bales (A_I, B_I, C_I) and the rubber pieces (A_IJ, B_IJ, C_IJ) to the rubber mixer and transports the uncured rubber bales (A_I, B_I, C_I) and the pieces (A_IJ, B_IJ, C_IJ) between the supply station, the cutting station and the rubber mixer according to a sequence determined by attaining an equivalence between a sum of a bale weight of the uncured rubber bales (A_I, B_I, C_I) and a weight of the pieces (A_IJ, B_IJ, C_IJ) and a required weight of the batch in a proportion corresponding to a predetermined proportion; and

at least one linear actuator that adjusts a position of a reference rubber bale (R) of a predetermined rubber nature and proportion that corresponds to a selected batch at the bale supply station, the provided reference rubber bale (R) having a predefined weight and a predefined length (L) between one end (R_L) and an opposite end (R_L′), until the opposite end (R_L′) is brought into contact against a side of a blade (Q) that performs a step of cutting the reference rubber bale (R) at the position (P) of a learning cut.