Ejector block mechanism and mold

The embodiment of the utility model discloses an ejector block mechanism and a mold, and relates to the technical field of injection molding. The ejector block mechanism comprises an ejector block body and an elastic block assembly contained in a containing cavity located in the ejector block body. The elastic block assembly comprises an elastic block piece, a first elastic needle, a first elastic piece and a second elastic piece. During mold closing, the elastic block piece can be pressed in the containing cavity and compress the second elastic piece to the ejector block body, during mold opening, the second elastic piece can drive the elastic block piece to move towards the injection molding cavity so as to be away from the cavity wall, and meanwhile, the first elastic piece can drive the first elastic needle to move towards the cavity wall so as to enable the first elastic needle to move towards the cavity wall. Therefore, the first abutting end is kept in an abutting state with the cavity wall, and the fi