Trapezoidal tooth synchronous belt forming die

The invention relates to the technical field of synchronous belt forming dies, and discloses a trapezoidal tooth synchronous belt forming die which comprises a heat preservation seat and a vulcanization groove, the inner wall of the vulcanization groove is movably connected with a positioning mechanism, the positioning mechanism comprises an annular groove, the surface of the annular groove is fixedly connected with a rubber sleeve, and the inner wall of the annular groove is fixedly provided with a pressurizing strip. The periphery of the pressurizing strip is fixedly sleeved with a steam pipe, the inner wall of the pressurizing strip is rotatably connected with a shifting piece, the bottom of the vulcanization groove is slidably connected with an elastic sliding ring, the edge of the elastic sliding ring is rotatably connected with a worm, and a wall cavity of the heat preservation base is slidably connected with a wedge block. According to the trapezoidal tooth synchronous belt forming mold, in the process