The invention discloses a blow molding process for an automobile spoiler with hollow holes, which comprises the following process steps: raw material drying, feeding, raw material heating, screw extrusion, mold opening, insert installation, mold closing, primary air blowing, primary air exhausting, secondary air blowing, secondary air exhausting, and mold opening. Aiming at the blow molding of the spoiler with hollow holes, the invention adjusts the temperature and pressure, and adopts a process of air blowing, air exhausting, air blowing and air exhausting again to meet the product molding conditions, so that the middle molding structure of the spoiler can be fully filled with materials, the thickness of the special structure is ensured, and defects such as insufficient material filling or material shortage and thin wall of the spoiler with hollow holes in the normal process flow are avoided.
Area Code: CN
Application Number: CN201711455086.7
