Butterfly-shaped fixed packaging roll film clamping disc

The utility model discloses a butterfly-shaped fixed packing roll film clamping disc, which comprises a first clamping disc, a first butterfly bolt, a roll film cylinder, a second butterfly bolt and a second clamping disc, a first circular groove is arranged in the middle of one side of the first clamping disc, four first through holes are arranged on the outer wall of the first clamping disc at the first circular groove in an annular array mode, and the first through holes are communicated with the first clamping disc. Four first screw holes are formed in the outer wall of one end of the film rolling barrel in an annular array mode, the first butterfly bolts penetrate through the first through holes to be screwed into the first screw holes, a second circular groove is formed in the middle of one side of the second clamping disc, and four second through holes are formed in the positions, at the second circular groove, of the outer wall of the second clamping disc in an annular array mode; four second screw ho