This is called a stone mill. ?
It is a tool made of stone and wood, which is used to break or peel grain. Stone roller consists of roller table (also called roller plate), roller (also called roller), roller frame, roller (or roller hole) and so on.
In the past, this kind of stone mill was mainly composed of grinding table, grinding frame, grinding tube core, grinding rod hole and grinding rod. Zhentou was originally a village in Shijiazhuang, called Zhentou Village. Now, after the transformation of the village in the city, these old objects in the village are basically gone.
The stone mill was invented in the Song Dynasty. Thousands of years ago, when we entered the farming era, our ancestors invented the mill and the mill. The stone mill consists of a stone mill table, a stone mill plate, a stone mill roller and a mill frame. A vertical shaft is fixed in the center of the stone millstone, which is connected with the grinding frame. Stone grinding rollers are installed in the grinding frame, and wooden sticks are symmetrically inserted at both ends of the grinding frame for people to push or livestock to pull.
Masons carve many regular textures on the stone grinding disc and the stone grinding roller respectively, and the grain crops are crushed by the rolling of the stone grinding roller on the grinding disc.