The hot runner system prevents glue leakage
Release Date:
2025-08-08
A hot runner system and injection mold patent shows that by fixing an annular protrusion on the valve pin, when the valve pin moves to the position opening the hot runner gate, the top surface of the sealing glue contacts the top surface of the injection channel, sealing the clearance between the valve pin and the valve pin sleeve to prevent glue leakage and improve the sealing reliability of the hot nozzle.
A hot runner system and injection mold patent shows that by fixedly installing an annular protrusion on the valve needle, when the valve needle moves to the position opening the hot runner gate, the sealing glue top surface fits with the top surface of the injection channel, sealing the clearance between the valve needle and the valve needle sleeve, preventing glue leakage and improving the sealing reliability of the hot nozzle.
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