US 12,350,859 B2
Method, robot island and apparatus for manufacturing slabs made of conglomerate of stone and/or ceramic material with veined effect
Luca Toncelli, Bassano del Grappa (IT)
Assigned to Luca Toncelli, Bassano del Grappa (IT)
Appl. No. 17/298,470
Filed by Luca Toncelli, Bassano del Grappa (IT)
PCT Filed Dec. 3, 2019, PCT No. PCT/IB2019/060381
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/115644, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 102018000010813 (IT), filed on Dec. 5, 2018.
Prior Publication US 2022/0097258 A1, Mar. 31, 2022
Int. Cl. B28B 1/00 (2006.01); B28B 13/02 (2006.01)
CPC B28B 1/005 (2013.01) [B28B 13/0295 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for manufacturing automatically, without human intervention, slabs of conglomerate stone and/or ceramic material with a veined effect from a base mix, comprising following steps:
(a) depositing a layer of base mix inside a temporary support;
(b) automatically forming in said layer of base mix one or more grooves with a predetermined width;
(c) automatically distributing a dye inside the one or more grooves;
(d) compacting the layer of base mix;
characterized in that said dye consists of at least one colouring mix comprising at least one binder;
wherein said colouring mix has a binder content similar to or less than the binder content of said base mix and a colouring different from that of said base mix; and
wherein the method further comprises, upstream of the step (c), a step of applying liquid dye or powder dye onto side walls of the one or more grooves and having a colour different from that of said base mix.