Systems and methods for producing dowel baskets from dowel side frames and transverse dowel rods. The dowel side frames are introduced at a top location of the production system, where there is initially introduced a first dowel rod and subsequently, with successive stepwise advancements, the remaining dowel rods are introduced. The dowel side frames with the dowel rods advance on guides that may rotate the dowel side frames relative to the axes of the longitudinal wires so as to impart a desired inclination angle relative to the rods. In following, with continuous stepwise advancements, the dowel rods are alternately welded, each to one of the opposed dowel side frames. Transverse wires are welded on the longitudinal wires to impart rigidity to the dowel basket. Subsequently, mass-produced dowel baskets may be stacked in groups.

Systems and methods for producing dowel baskets from dowel side frames and transverse dowel rods. The dowel side frames are introduced at a top location of the production system, where there is initially introduced a first dowel rod and subsequently, with successive stepwise advancements, the remaining dowel rods are introduced. The dowel side frames with the dowel rods advance on guides that may rotate the dowel side frames relative to the axes of the longitudinal wires so as to impart a desired inclination angle relative to the rods. In following, with continuous stepwise advancements, the dowel rods are alternately welded, each to one of the opposed dowel side frames. Transverse wires are welded on the longitudinal wires to impart rigidity to the dowel basket. Subsequently, mass-produced dowel baskets may be stacked in groups.

The present disclosure provides a molding machine for flexible production of a rebar of bottom, web, and top plates of a precast small box girder, comprising a molding mainframe and a movable gantry welder disposed on an outlet end of the molding mainframe. The molding mainframe includes a frame, two synchronous lifters, a vertical movable sliding table, a plurality of upper support plates, and a plurality of comb-like support plates. A plurality of spot welding assemblies are disposed on an upper side and a lower side of an outlet end of the frame, a straightening rebar receiving assembly is mounted on the lower side and two bending assemblies are mounted on a left side and a right side of the outlet end of the frame, and a straightening rebar feeding assembly is disposed between the straightening rebar receiving assembly and the frame.

The present disclosure provides a molding machine for flexible production of a rebar of bottom, web, and top plates of a precast small box girder, comprising a molding mainframe and a movable gantry welder disposed on an outlet end of the molding mainframe. The molding mainframe includes a frame, two synchronous lifters, a vertical movable sliding table, a plurality of upper support plates, and a plurality of comb-like support plates. A plurality of spot welding assemblies are disposed on an upper side and a lower side of an outlet end of the frame, a straightening rebar receiving assembly is mounted on the lower side and two bending assemblies are mounted on a left side and a right side of the outlet end of the frame, and a straightening rebar feeding assembly is disposed between the straightening rebar receiving assembly and the frame.