Steel belt conveying mechanism and sintering and light injection all-in-one machine

The invention discloses a steel belt transmission mechanism and a sintering light injection all-in-one machine, the steel belt transmission mechanism comprises two transmission bases which are oppositely arranged, one transmission base is provided with a main transmission assembly, the other transmission base is provided with an auxiliary transmission assembly, and the main transmission assembly and the auxiliary transmission assembly are jointly provided with a conveying part used for bearing battery pieces; the transmission part comprises at least one steel belt of a closed-loop structure, and a bearing plane used for bearing the battery piece is arranged on the side, facing the battery piece, of the steel belt. Guiding structures are arranged between the steel belt and the main transmission assembly and between the steel belt and the auxiliary transmission assembly respectively. The guide structure comprises a plurality of buckling penetrating holes evenly distributed in the length direction of the steel b