초록 ▼

A filter is inserted into a cylindrical hole of a nozzle body 1. The filter has an axial blind hole, which communicates with transverse or radial holes. The transverse holes open into peripheral longitudinal trap channels, which are axially open against a collection space. Via slot-like openings, th

A filter is inserted into a cylindrical hole of a nozzle body 1. The filter has an axial blind hole, which communicates with transverse or radial holes. The transverse holes open into peripheral longitudinal trap channels, which are axially open against a collection space. Via slot-like openings, the trap channels are connected to second or clean channels, which communicate with an outlet opening of the nozzle body. A flushing opening, which can be closed by a screw, leads from the collection space to the outside. When foreign bodies have accumulated in the trap channels, the flushing opening is opened, and the foreign bodies are flushed out with an injection stroke. As a result, the foreign bodies can be removed rapidly and in a simple manner.

대표청구항 ▼

A filter nozzle for thermoplastic injection molding machines, the nozzle comprising: a nozzle body defining an inlet opening, an outlet opening and a passage between said inlet opening and said outlet opening, said nozzle body also defining a flushing opening communicating with said passage; a filte

A filter nozzle for thermoplastic injection molding machines, the nozzle comprising: a nozzle body defining an inlet opening, an outlet opening and a passage between said inlet opening and said outlet opening, said nozzle body also defining a flushing opening communicating with said passage; a filter positioned in said passage in an area adjacent said flushing opening, said filter including partition means for blocking contaminants from flowing through said filter, said filter and said nozzle body providing a path from an upstream side of said partition means to said flushing opening, said path not passing through said partition means; means for opening and closing said flushing opening to remove contaminants from upstream of said filter.