Use pressure jar on annotating rubber machine

The utility model discloses an use pressure jar on annotating rubber machine, including the base with install the fore -set in the base, fore -set up end AND operation face is connected, the surface level of fore -set is provided with multiple annular groove, multiple annular groove is preset space length regular spread, be provided with on the base with annular groove kazakhstan that mate, that can lock or unclamp fore -set husband's clamping ring group, breathe out husband's clamping ring group below and be provided with the pressurization jar, the pressurization jar drives breathes out husband's clamping ring group at vertical side's upward movement. Fore -set AND operation face is connected, except the former power component that presses the jar for the fore -set provides power, still be provided with the pressurization jar and provide auxiliary power to the fore -set. After former power component drive fore -set moves preset position, breathe out husband's clamping ring group locking fore -set, the work