Back to results
US 4,501,549 AGranted
Injection mold with replacable insert in mold cavity outlet opening
OwnerVsevolod V. Abramov, Vsevolod V. Kuznetsov +4inventors
InventorsVsevolod V. Abramov, Vsevolod V. Kuznetsov, Alexandr V. Veselov, Vitaly S. Tkhai, Nikolai I. Rysin, Vasily I. Gerasimov
Life of this patent
Estimating the term…
Abstract
Injection molding apparatus is disclosed including a two cavity split-mold with a flow passage between the cavities. The sprue channel is heated as is the flow passage between the mold cavities. The apparatus has a rotatable core with a longitudinal recess. The flow passage has replaceable inserts for varying the size of the flow passage.
Claims4
A split mold of an injection-molding machine, comprising two half-molds mounted on plates of the injection-molding machine;
- coolant supply channels formed in said half-molds;
- a first die incorporated in one of the half-molds and having forming surfaces;
- a second die incorporated in the other half-mold and having forming surfaces;
- a gating system for feeding the polymer melt;
- cavities defined by the forming surfaces when the half-molds are brought together, said cavities communicating with each other and with the gating system;
- openings of said cavities, adapted to communicate the cavities with each other and with the gating system, the openings disposed at the entrance of the melt into the cavity serving as inlets and those disposed at the exit of the melt from the cavity as outlets;
- conventional heaters mounted in said first and second die at the inlet and outlet openings;
- replaceable inserts positioned at the outlet openings of the cavity to alter the flow area of these openings.
5 more elements
Dependencies are inferred from the claim text.