Add the loose material into the large hopper above the dosing cylinder. Oil is fed into the rear cavity of the feeding cylinder, the piston rod is extended and reset, and then oil is fed into the rear cavity of the master cylinder, which drives the piston rod and punch of the master cylinder to press down rapidly. When the punch enters the mold cavity, the rear cavity of the master cylinder enters the pressure oil , the main cylinder starts to attack to compress the material to form a crumb cake, and after the pressure is maintained, the main cylinder retreats slightly, the rear cavity of the auxiliary cylinder enters the oil, the piston rod retreats, and drives the pumping block to retreat to the position where the cake can be ejected, and the main cylinder continues to descend , After the pressed cake is pressed out of the mold cavity, the front cavity of the auxiliary cylinder enters the oil, and the piston rod extends, which drives the block to push the cake out of the cake, and resets at the same time. Oil is fed into the front cavity of the rear sub-cylinder, which drives the piston rod and punch of the master cylinder to rise and reset, completing a cake-pressing cycle and entering the next cycle.