FIRE PREVENTION IT BITES AND THE FRAME PRODUCTION PRODUCTION FRAME WHICH IT BITES

摘要

PURPOSE: A mold frame for manufacturing a fire door frame, capable of consecutive manufacturing process performance in one mold, is provided to form the steel plate curved. CONSTITUTION: A mold frame for manufacturing a fire door frame comprises a lower mold(50), an upper mold(30) and a intermediate mold(40). The lower mold is installed in the lower part of the intermediate mold. The lower mold comprises a mold curved surface. The upper mold is installed on the lower part of a press punch. A curved surface bending groove(34), an incline and a stepped part are continuously formed on the bottom(33) of the upper mold.