Clamping device of zipper machine

The utility model discloses a clamping device of a zipper machine, and relates to the technical field of zipper machines. The clamping device of the zipper machine comprises a mounting frame; and the two clamping mechanisms are arranged, each clamping mechanism comprises a power component, a fixing frame, two fixing clamps and a limiting component, the fixing frame is slidably embedded between the upper inner wall and the lower inner wall of the mounting frame, and the power component is arranged on the fixing frame. According to the clamping device of the zipper machine, a connecting rod can be rotated by screwing a rotating block, so that a fixed bevel gear is driven to rotate, and a mounting bevel gear is meshed with the fixed bevel gear, so that the mounting bevel gear drives one mounting bidirectional threaded rod to rotate; through transmission of a synchronous belt, a synchronous wheel drives the other two-way threaded rod to rotate, so that a threaded cylinder moves on the two-way threaded rod, two fi