Density-controllable artificial ice ball preparation device and preparation method

The invention provides a density-controllable artificial ice ball preparation device. The density-controllable artificial ice ball preparation device comprises a hydraulic cylinder, a plurality of upper inner cores and a plurality of lower inner cores located in a cavity. Crushed ice powder/snow calculated according to a preset density is weighed to realize controllable density, and ice balls withspecified density required by an experiment are manufactured; and the upper inner cores are controlled by the hydraulic cylinder to be pressed downwards at a specified speed, and crushed ice powder/snow is compacted between the upper inner cores and the lower inner cores to form the artificial ice balls with set density. The ice balls with the same specific gravity often need to be tested for multiple times, and a plurality of compression rods with the parallel structures can realize small-batch production of the artificial ice balls, so that the test efficiency is improved. 本发明提供一种可控制密度人造冰球制备装置，包括液压缸、若干上内芯、位于腔体内的若干下