Vertical sand mold molding machine

The utility model discloses a vertical sand mold molding machine which comprises a base, a rack is arranged at the upper end of the base, a compaction oil cylinder is arranged at the top of the rack,the piston end of the compaction oil cylinder faces downwards and is connected with a compaction plate, a platform located below the compaction plate is arranged above the base, and vibration air pumps are connected to the four corners of the lower end face of the compaction plate. An elastic mechanism is connected to the middle of the lower end of the platform, a rotating rod located on one sideof the platform is rotatably connected to the upper end face of the base, a mounting block is fixedly connected to the top of the rotating rod, and lower die mechanisms corresponding to the compactionplate are arranged on the two sides of the mounting block; and a positioning piece for fixing the lower die mechanism is arranged on the side wall of the platform. Vibration compaction is carried outduring molding sand molding