Shaping unit of device for forming curved walls at tubular structure, has recess which is formed in mold plate portion of molding plate corresponding to cross section of guide rail of guide unit provided in half-shell

摘要

The shaping unit (10) has several molding plates which are provided with respective pairs of mold plate portions located at interconnection of two half-shells (12,14). The half-shells are displaced from a rest position to an operative position along a longitudinal direction. The half-shell is provided with a guide unit having a guide rail (60). A recess (64) is formed in mold plate portion corresponding to cross section of guide rail.