1. Using a high-speed rotating diamond roller to carry out fixed-width milling processing on the surface of the porcelain brick, so that

the porcelain brick can obtain a relatively flat surface with uniform thickness, thereby greatly improving the whole line production of the

polished brick production line and reducing the polishing cost of the qualification brick;

2. The high-precision hob lifting screw is arranged to eliminate the gap of the positioning structure, reduce the working vibration of the

hob, and improve the cutting efficiency of the hob;

3. Optional hob digital control automatic reset function: When the machine needs to stop, the hob will automatically lift up. After

restarting, it is not necessary to re-tool. The self-reset function realizes automatic tool lowering operation, reducing the scraper in the

continuous production process. Defects such as knife marks and breakage on the surface of the brick caused by downtime or other

bricks;