| 摘要 |
<p>The present invention relates to an injection molding method and, more specially, to an injection molding method for a different material mud guard for a vehicle. According to the present invention, the injection molding method injection-molds a different material mud guard for a vehicle by using a mold apparatus which comprises: a lower mold; an upper mold which forms a cavity for a mud guard for a vehicle equipped with a cover part, an apron part and a mud flap part in an inner space by being combined with the lower mold; a first deformation core part which opens and closes a gap between a first cavity part for the cover part and a second cavity part for the apron part in the cavity; and a second deformation core part which opens and closes a gap between a third cavity part for the mud flap part and the first cavity part in the cavity, wherein the first deformation core part and the second deformation core part are equipped with a movement core vertically moving between the first cavity part and second cavity part or between the first cavity part and third cavity part and a driving block operated in order to horizontally move and be located under the movement core, and allows the vertical movement of the movement core to be controlled according to the direction of the horizontal movement of the driving block.</p> |
