| 摘要 |
The present invention relates to an extrusion molding apparatus to consecutively manufacture extruded products having various shapes including hollow tubes having various inner diameters and outer diameters or a product without a hollow hole by extruding material using a single molding apparatus. According to the present invention, the extrusion molding apparatus comprises: a molding body of a cylindrical shape with open upper and lower portions, formed with an injection hole penetrated to inject an extrusion material to an inner portion on one side of an outer circumferential surface; an upper cover fixated on an upper portion of the molding body, having a hollow insertion guide pipe protruding to a lower direction inserted to the inside of the molding body; a long insertion rod installed on the upper side of the upper cover to be movable in a vertical direction of the upper cover, to be protruded to a lower direction by penetrating the insertion guide pipe of the upper cover; a vertically moving plate coupled to a hollow member of a cone shape with a vertex facing a lower direction on a lower end of the insertion rod; a lower cover fixated on a lower portion of the molding body, to guide the extrusion material injected to the injection hole of the molding body to a lower direction through the inside of the molding body; and an extruder fastened on a lower portion of the lower cover by screw, replaceably inserted with an extrusion plate with an extrusion window. |
