Locking mouth pressing die for flanged gasket of needle roller thrust bearing

The utility model relates to the technical field of gasket processing equipment, in particular to a needle roller thrust bearing outer flanging gasket pressing lock mouth die which comprises an upper die and a lower die, the upper die is located above the lower die, a die cavity is formed in the lower die, a lock mouth die with a lock mouth face is arranged on the top face of the lower die, and the lock mouth face of the lock mouth die is matched with the lock mouth face. An inclined wedge block with an inclined face and a material returning barrel capable of elastically moving in the axial direction are installed in the die cavity, the inclined wedge block is sleeved with the material returning barrel, the material returning barrel is used for installing and fixing a gasket, a sliding block capable of elastically moving in the radial direction is fixed in the material returning barrel in the axial direction, and a fixing piece is fixed to the sliding block. When the fixing piece moves in the radial direction