Oil-proof device for tablet press

The oil-proof device for the tablet press comprises a base, a lower die, a rocker, two supporting rods, an ejector rod, a lead screw and an upper die, the lower die is installed at the top of the base, the rocker is rotationally connected with the right side of the base, the two supporting rods are fixed to the two sides of the base respectively, the two ends of the ejector rod are fixed to the top ends of the two supporting rods respectively, and the lead screw is arranged on the upper die. The die further comprises a connecting block and a protective cover, a connecting hole is formed in the middle of the connecting block, a rotating groove is formed in the inner side of the connecting hole, an annular protruding strip is arranged on the side face of the upper die, the upper die is rotationally connected with the interior of the rotating groove through the protruding strip, and a protective opening is formed in the top of the protective cover. The protective cover is fixed to the outer side of the connectin