Zipper machine stable in operation

The utility model relates to the technical field of zipper machines, in particular to a zipper machine stable in operation, which comprises a buffer base, four corners of the bottom of the buffer base are fixedly connected with supporting legs, the right side of the bottom of the inner wall of the buffer base is provided with a groove, and an inner cavity of the groove is movably connected with a push block. And the right side of the push block is fixedly connected with a buffer spring. The zipper machine body moves to drive the connecting plate to move, the connecting plate moves to drive the transverse plate to move, the transverse plate moves to drive the guide sliding block to slide in the guide sliding groove, the transverse plate moves to drive the upper supporting block to move, and the upper supporting block moves to enable the movable rod to rotate. And a push block is pushed to move towards the right side through rotation of a movable rod, a buffer spring deforms through movement of the push block,