| 摘要 |
A method of producing plastic articles which are assembled from a plurality of parts produced by injection into a mold includes forming the parts in mold cavities providing web portions for interconnecting the molded parts and holding them in an orientation from which they can be easily assembled and thereafter joining the molded parts together by moving them into juxtaposition while severing the connecting webs either when they are still in the mold or when they are removed from the mold. The molding apparatus advantageously includes, in one embodiment, a first molding cavity for one of the parts and a working plate forming cavities for one or more additional parts at locations spaced from the first cavity and providing a joining connection between the first cavity and the additional cavities for the other parts. The work plate is movable to present each additional part in succession into alignment with the molded part of the first cavity so that they can be pushed into the first molded part by suitable movable elements. In an alternate construction two or more separate mold parts are formed such that they provide means for molding individual parts in axial alignment. The construction is such that a mold cavity is defined which provides for a formation of an aligning shaft member which is first positioned through a bore of each of the parts after they are molded to hold them in proper orientation and thereafter these parts are moved together axially to place them into juxtaposition. |
