Isolating strip cutting mechanism capable of effectively preventing blade from clamping film

The utility model discloses an isolating strip cutting mechanism capable of effectively preventing a blade from clamping a film. The isolating strip cutting mechanism comprises a supporting bottom plate and a cutting assembly. A strip-shaped groove extending in the direction perpendicular to the film conveying direction is formed in the supporting bottom plate. The cutting assembly comprises a pair of sliding rail mounting filler strips fixed to the lower surface of the supporting bottom plate and arranged on the two sides of the strip-shaped groove in parallel, sliding rails mounted on the sliding rail mounting filler strips, a cutter assembly slidably arranged on the sliding rails and a motor driving the cutter assembly to move on the sliding rails. And the thickness of the slide rail mounting filler strip is gradually increased or decreased from one end to the other end. The service life of the cutter can be greatly prolonged, and the film clamping risk and the cutter changing frequency of the cutter are r