Material sample preparation device

The utility model discloses a material sample preparation device, and relates to the technical field of waterproof material sample preparation equipment for building material detection. The device comprises an operation table, two fixing plates are fixed on one side of the operation table, the two fixing plates are arranged in parallel up and down, two sliding rails are fixed between the two fixing plates, the two sliding rails are both installed on the operation table, sliding blocks are arranged on the sliding rails in a sliding mode, and first U-shaped blocks are fixed on one sides of the two sliding blocks. The U-shaped seat is dragged to move upwards through the two first electric telescopic rods, so that the waterproof roll placed on the U-shaped seat moves upwards along with the U-shaped seat, and when the sliding block is limited by the fixing plate above and cannot move upwards continuously, the two first electric telescopic rods can drag the U-shaped seat to rotate around the first sleeve, so that t