PVC (polyvinyl chloride) board foaming mold

The invention relates to a PVC board foaming mold. The PVC board foaming mold comprises a lower mold, wherein a plurality of support legs distributed diagonally are fixed to the bottom of the lower mold through bolts; two butt joint grooves are symmetrically formed in the two ends of the top of the lower mold; an upper mold is arranged above the lower mold; two butt joint strips distributed symmetrically are arranged at the two ends of the bottom of the upper mold; a sealing plate is welded to one side of the upper mold; a feeding pipe is fixed to the outer side of the sealing plate in a penetrating manner; a flow adjusting mechanism is connected with a flow adjusting plate; the flow adjusting plate penetrates through the upper mold' an embedded groove is formed in the bottom of the flow adjusting plate; a plurality of evenly-distributed second springs are fixed to the inner wall of the top of the embedded groove through bolts; the same inner plate is fixed to the bottoms of the second springs through bolts;