Filter for injection moulding machine

摘要

An injection molding machine (2) includes a nozzle (13) for supplying a melted resin (14a) into a mold (17, 20). In the nozzle (13), there is a filter (35) for removing foreign materials mixed in the melted resin (14a). The filter (35) has a cylindrically-shaped filter body (35a). In the filter body (35a), many small holes (35d) are formed. By supplying the melted resin (14a) into the mold (17, 20), the melted resin (14a) passes through the small holes (35d) into outside (35c) of the filter body (35a). In cleaning the filter (35), the melted resin (14a) flows from the outside (35c) into the inside (35b). The small holes (35d) each are smaller on the inside (35b) than the outside (35c).