Forming die for prefabricating composite floor slab

The forming mold comprises a workbench, a side mold is installed on the workbench, U-shaped reinforcing steel bar holes for placing reinforcing steel bars are formed in the side mold at intervals, a plurality of shielding blocks are arranged on the side mold, the shielding blocks are made of elastic rubber materials, and the U-shaped reinforcing steel bar holes are communicated with the U-shaped reinforcing steel bar holes. The multiple shielding blocks are attached to the inner sides of the edge side molds and used for shielding the U-shaped steel bar holes, penetrating holes allowing steel bars in the composite floor slab to penetrate through are formed in the shielding blocks, passages are arranged at the lower ends of the penetrating holes in the vertical direction, and the passages are communicated with the penetrating holes. The device has the effects that concrete is prevented from overflowing from the positions of the U-shaped steel bar holes, and waste of the concrete is avoided. 本申请涉及一种用于预制叠合楼板的成型模具