Invention Grant
US07665978B2 Injection molding machine having a centering device for centering a nozzle hole 有权
具有用于对准喷嘴孔的定心装置的注射成型机

Injection molding machine having a centering device for centering a nozzle hole
Abstract:
A mold is mounted with a locating ring mated into a hole in a stationary platen. A distance measuring unit is disposed to the side of the injection nozzle. The distance A between the sprue hole and the outer circumference of the locating ring and the distance B between the distance measuring unit and the outer circumference of the locating ring are both known. The distance C between the central axis of the nozzle hole and the side of the injection nozzle is also known. If the distance D to the side of the injection nozzle is measured by means of the distance measuring unit, the displacement between the central axis of the sprue hole and the central axis of the nozzle hole is obtained by calculating {(A+B)−(C+D)}. The injection nozzle is centered by being moved manually or automatically by the amount corresponding to the displacement.
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