Acoustic transmission film cutting device

The utility model relates to the technical field of sound transmission membranes, and discloses a sound transmission membrane cutting device which comprises a bottom plate and supporting legs, a cutting mechanism is arranged above the bottom plate and comprises a supporting rod, an installation plate, an electric telescopic rod, a bearing plate and a moving block, the bottom of the supporting rod is fixedly connected with the top of the bottom plate, and the bottom of the supporting rod is fixedly connected with the top of the bottom plate. The top of the supporting rod is fixedly connected with the bottom of a mounting plate, the inner wall of the mounting plate is fixedly connected with the outer wall of an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected with the top of a bearing plate, one end of the bearing plate is fixedly connected with one side of a moving block, and a cutting knife is fixedly mounted at the bottom of the bearing plate. According to the sound tra