The present utility model discloses a blow mold for a hollow ball for buoyancy test in a laboratory, comprising a bottom plate provided with a lower module and an upper module, a molding cavity arranged between the lower module and the upper module, a blow molding machine arranged on the bottom plate and connected with the molding cavity through an injection channel, a guide block arranged on the bottom plate with a sliding groove on the end side wall, a fixed column arranged on the upper module and connected with a fixed rod, a sliding block arranged at the end of the fixed rod and arranged in the sliding groove, and a push plate arranged at the bottom of the sliding block. The present utility model blows materials into the molding cavity through the injection channel and naturally cools and molds on the inner surface of the molding cavity to prepare a spherical plastic ball for laboratory buoyancy test, with a simple preparation process and convenient operation.
Country Code: CN
Application Number: CN201420441555.5
