| 摘要 |
<p>A mold carrier (61) contains a fluid distribution system, such as a hot runner system (60), having a nozzle (76) with a substantially flat face (80, 82). The hot runner system includes melt channels (66-70) that require alignment with a complementary melt channel (96) within an interface adaptor, such as a sprue bushing (92), that permits coupling of the hot runner system to a mold (62, 64). The sprue bushing (92) also has a flat sealing surface that is arranged to abut, in use, against the substantially flat face (80, 82) of the nozzle (76) to provide an interface. Under appropriate positive biasing (88), the flat faces of the nozzle (76) and sprue bushing (92) produce a substantially flat interface that maintains sealing contact in the face of potential radial misalignment between the various melt channels. The interface is recessed within a boundary defined by a mold locating ring (100), thereby protecting the nozzle from damage during loading of a mold into the mold carrier (61). The nozzle's face may include a step that causes a recessing of a body portion of the nozzle relative to the actual interface produced to the sprue bushing.</p> |
