Multifunctional dart-value conversion prototype formwork

A multifunctional dart-value conversion prototype formwork comprises a chest formwork body, a back formwork body and a basic dart-value angle. The chest formwork body and the back formwork body correspond to each other. The chest formwork body is divided into six sub formwork units along radial dividing lines with the middle mastoid tip as the circle center, and all the sub formwork units can be rotatably assembled at the circle center through a chest dial disc. The back formwork body is divided into four sub formwork units along radial dividing lines with the shoulder blade protrusion as a circle center, and all the sub formwork units can be rotatably assembled at the circle center through a back dial disc. A clamp convenient to disassemble and assemble is arranged on the edge of each radial line between the adjacent sub formwork units. The multifunctional dart-value conversion prototype formwork has the advantages that the basic dart value angle can be transferred to any positions through the combined formwork, dart width values of all parts can be naturally formed on the edges of cut parts, deserved dart values are not changed, and convenience is brought to accurate drawing. The forming mode is innovated, multiple dart distribution modes are integrated, the novel prototype formwork for naturally generating dart widths of all parts with the angle as reference is created, and the prototype formwork is convenient to use.