Blade injection mold

The utility model relates to a ventilation equipment field especially relates to a blade injection mold. A blade injection mold, the mould is inside to be equipped with the mould chamber of the blade that is used for moulding plastics, be equipped with on the mould with communicating injecting glue mouth in mould chamber and air inlet, mould intracavity portion is including the first end that is used for forming the blade upper end to and form the second end of blade lower extreme, and be used for forming the third tip of blade air inlet end, and be used for forming the fourth tip of blade air -out end, the degree of depth of fourth tip is less than the degree of depth of first end, the second end and third tip, and the air inlet all is equipped with a plurality of flash wells on being in the fourth tip in mould chamber on the edge of first end, the second end and third tip, and the flash well communicates with each other through the valve runner with mould chamber edge. Be equipped with in this blade injecti