Metal mold device

A metal mold device which comprises a female die for providing a profile of a molding, a die frame having a hole and a divisional male die assembly protruded through the hole of the die frame, characterized in that the divisional male die assembly comprises:

• a central base having a rectangular top and four side slopes, each opposed pair having common individual gradient angles or a common angle and moving along the axis between a molding position and a removing position;
• a pair of opposed primary slide members strictly moved along the axis on the opposed corresponding side slopes of the base respectively and each primary slide member comprising a primary slide contact plane, for contacting said side slopes, a partial convexo-concave sidewall component and a pair of side planes;
• a pair of opposed auxiliary slide members loosely moved along the axis on the corresponding remained slide slopes of the base respectively, each auxiliary slide member comprising a remained convexo-concave sidewall component and a secondary slide contact plane for contacting said side plane and slide slopes upon assembling said male die assembly;
• said partial and remained convexo-concave sidewall components completely defining an inner sidewall of said molding;
• central support means for carrying the base and threadly secured on the bottom of the base;
• primary support means for carrying the primary slide members;
• and
• auxiliary support means for carrying the auxiliary slide members.