Glass fiber tire asphalt shingle tearing strength testing device

The invention discloses a device for testing the tearing strength of a glass fiber tire asphalt shingle, and relates to the technical field of glass fiber tire asphalt shingle testing equipment. The device comprises a machine frame, a cutting frame is welded to the top of the machine frame, a torque motor is installed on the back face of the machine frame, a tension testing frame is installed at the output end of the torque motor, the tension testing frame is of an annular design, and clamping assemblies are installed at the top of a lifting lead screw and the end, away from a cutting knife, of a compression spring correspondingly; the clamping assembly can clamp the glass fiber tire asphalt shingle, and the second compression spring can be pressed on the clamping assembly on the top of the lifting lead screw. According to the invention, through the annular design of the tension test frame, the glass fiber tire asphalt shingle coiled material can be wound on the tension test frame, cutting of multiple groups