Ergonomic one-step molding injection mold for plastic chair

The utility model provides a one-step molding injection mold of a plastic chair according with ergonomics, and particularly relates to the field of plastic chair processing. The utility model relates to an automatic positioning injection mold, in particular to an automatic positioning injection mold, and aims to solve the problems that in the prior art, an automatic positioning function is not achieved, an injection mold cannot be quickly positioned, the injection mold cannot be quickly attached, and the molding effect of the mold can be affected. The automatic positioning injection mold comprises a mounting plate, an upper mold, a fixing plate and a lower mold, and the bottom of the upper mold is located on the top of the lower mold; the bottom of the fixing base is connected with the top of the upper die, positioning columns are installed on the periphery of the bottom of the fixing base, positioning rods are installed on the periphery of the bottom of the fixing base and located on the outer sides of the p