Shakeout and pre-regeneration machine with grid convenient to replace

The utility model discloses a shakeout and pre-regeneration machine with grids convenient to replace, relates to the technical field of casting equipment, solves the problem that the grids in most of the shakeout and pre-regeneration machines used at present are inconvenient to replace, and comprises a shakeout rack, the periphery of the top of the shakeout rack is provided with feed ports, and the top of the shakeout rack is provided with feed ports. A vibration motor is fixedly connected to one side of the shakeout rack, sliding sleeves are fixedly connected to the periphery of the shakeout rack, stand columns are slidably connected to inner cavities of the sliding sleeves, buffer springs fixedly matched with the sliding sleeves are arranged on the upper surfaces and the lower surfaces of the stand columns in a sleeving mode, and a filter box fixedly matched with the shakeout rack communicates with the bottom of the feeding opening. And the bottom of the filter box is communicated with a material pipe. The