An independent punching device for a hydraulic bottle filler, comprises of a body's major drive shaft that has a set of punching cams, whose both sides have a moving shaft and a support shaft, and the left of the said moving shaft equipped a connecting plate, the right of the support shaft connected to a cross beam, whose both ends connect to drive shafts and who connects with the connecting plate through an extension spring, and it features in the punch die of the punch back board, which fastened on the left of the connecting plate, and the left of the said drive shaft led out by the punch back board and connects with the cavity die back board at the left of the drive shaft, with the inner side of the cavity back board equipped with a cavity die plate, which are connected with each other through a guide component. |