Mold-Masters Limited Patent applications |
Patent application number | Title | Published |
20080279979 | Injection Molding Nozzle With Valve Pin Alignment - An injection molding apparatus is disclosed that includes a valve-gated nozzle having a nozzle tip assembly and a valve pin slidably disposed therein. The nozzle tip assembly includes a nozzle liner having a first valve pin guiding portion, a valve pin guide having a second valve pin guiding portion upstream of the first valve pin guiding portion, and a transfer seal having a bore for receiving the nozzle liner and the valve pin guide therein. The transfer seal bore includes an alignment surface that surrounds the nozzle liner and the valve pin guide to align the first and second valve pin guiding portions with the mold gate, such that the valve pin is accurately aligned during operation. The transfer seal also includes means to couple the nozzle tip assembly to the nozzle body. | 11-13-2008 |
20080279978 | Manifold Nozzle Connection For An Injection Molding System - An injection molding system having a manifold nozzle connection that accommodates thermal expansion of the system. A manifold nozzle tubular connector is receivable at a first end within a manifold and at a second end within a nozzle and has a length that bridges a space between opposing surfaces of the manifold and nozzle. The first end of the tubular connector may be threadably and/or permanently attached within a manifold bore in a downstream surface of the manifold with the second end of the tubular connector being slidably received within a nozzle bore in an upstream surface of the nozzle or within a nozzle melt channel. Alternatively, the first end of the tubular connector may be slidably received within a manifold bore in the downstream surface of the manifold or within a manifold melt channel with the second end of the tubular connector being threadably and/or permanently attached within a nozzle bore in an upstream surface of the nozzle. | 11-13-2008 |