Multi-cavity heated injection moulding nozzle - having central melt channel leading to branched diagonal channels with means to ensure balanced heating of each of the branch channels

In a multi-cavity injection moulding nozzle adapted to be seated in a well in a cavity plate, and comprising (a) a melt channel having a cenbtral position branching out into several diagonal portions, (b) equally spaced outlets each connected to a diagonal portion and leading to a gate extending thr...

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Bibliographic Details
Main Author TENG, ALEX C
Format Patent
LanguageEnglish
German
Published 03.03.2005
Edition7
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:In a multi-cavity injection moulding nozzle adapted to be seated in a well in a cavity plate, and comprising (a) a melt channel having a cenbtral position branching out into several diagonal portions, (b) equally spaced outlets each connected to a diagonal portion and leading to a gate extending through the cavity plate to one of the mould cavities, and (c) an integral electric heating element having a spiral portion extending around the central portion of the melt channel, the heating element also includes a forward portion located adjacent the forward face of the nozzle and comprising a number of arms each extending radially midway between two adjacent outlets.
Bibliography:Application Number: DE19934308922