| 摘要 |
An extruding apparatus for manufacturing a pipe according to the present invention comprises: an external molding pipe which includes a hole formed by passing an inner space molds back and forth and forms an external surface of molten materials in a cylindrical shape by moving and discharging the molten materials supplied to a rear end of the hole to a front end outlet; an internal molding pipe which forms a space part and an internal surface of the external molding pipe by being arranged in the hole of the external molding pipe; a rotation pipe of a cylindrical shape which is installed on the front end of the internal molding pipe and consecutively forms a spider line of a spiral shape on the inner surface of the molten materials by being normally rotated on the basis of an anteroposterior horizontal rotation center; and a driving part which delivers rotation force by being connected to the rear end of the rotation pipe through the inner space of the internal molding pipe. |
