US 11,925,955 B2
Roller leather finishing machine
Diego Marcolin, Pisa (IT); and Lorenzo Simoni, Pisa (IT)
Assigned to ROTACOAT S.R.L., Pisa (IT)
Appl. No. 17/757,598
Filed by ROTACOAT S.R.L., Pisa (IT)
PCT Filed Dec. 18, 2020, PCT No. PCT/IB2020/062185
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/124248, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 102019000025099 (IT), filed on Dec. 20, 2019.
Prior Publication US 2023/0019709 A1, Jan. 19, 2023
Int. Cl. B05C 1/08 (2006.01); C14B 1/34 (2006.01); C14C 15/00 (2006.01)
CPC B05C 1/0856 (2013.01) [C14B 1/34 (2013.01); C14C 15/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A reverse roller leather finishing machine, comprising a drawing cylinder and an engraved spreading cylinder, the drawing cylinder acting as a driving roller for a rubber conveyor belt wound between the driving roller and an idle roller and having a conveying surface, the drawing cylinder comprising a rubber layer,
configured such that in each operating configuration, the conveying surface of the rubber conveyor belt is tangent to the engraved spreading cylinder in a point of tangency (P),
wherein said idle roller comprises a leather-detachment roller having a diameter within a range of 10 and 80 mm.