Mold apparatus

A mold apparatus for molding a rotating member including a column portion extending in a first direction and a blade that is disposed at an outer circumferential surface of the column portion, that extends from a first end of the column portion to a second end of the column portion, and that is inclined with respect to the first direction, the mold apparatus comprising:

• a column mold portion including (i) a first column molding hole that extends in the first direction and that is configured to mold the column portion therein, (ii) a first blade molding groove that is formed as an intaglio on an inner circumferential surface of the first column molding hole to have a shape corresponding to the blade and that is configured to mold the blade therein, and (iii) a rotation guide portion that protrudes from an inner circumferential surface of the column mold portion;
• and
• an extraction guide including a rotation guide groove that extends in an inclined direction of the blade, at least a portion of the extraction guide being positioned inside the first column molding hole,
• wherein the extraction guide is configured to be rotated in an inclined direction of the rotation guide groove by the rotation guide portion while moving in the first direction, and
• wherein the extraction guide is configured to press the column portion to thereby extract the column portion from the first column molding hole while the column portion rotates in the inclined direction of the blade.