Filter Mesh Assembly for a Plastic Extruder Filter Assembly

摘要

A filter mesh assembly configured to control particulate material in a filter assembly of a plastic extruder. The filter mesh assembly includes a wire mesh filter having a square weave construction defining a predetermined pore size with the wire mesh filter having flattened surfaces of adjacent wires on the same plane and configured to allow a portion of the scraper to move across the wire mesh filter assembly. The assembly also includes a wire mesh supporter having a square weave construction and a characteristic of sufficient strength to support the wire mesh filter against a breaker plate. The wire mesh filter and the wire mesh supporter are diffusion bonded to each other as a unified structure and disposed in a housing between an inlet and breaker plate. The configuration allows passage of molten plastic through the breaker plate and lateral movement of material, parallel to the breaker plate.

主权项

1. A filter mesh assembly configured to control particulate material in a filter assembly of a recycled plastic extruder, the filter assembly including a housing defining an inlet, an outlet, a discharge port, a breaker plate, with the breaker plate located between the inlet and outlet, and a scraper assembly, the filter mesh assembly comprising:
a filter media, the filter media defining a plurality of orifices configured to pass molten plastic; and a wire mesh assembly having a square weave construction defining a predetermined pore size, with the wire mesh assembly diffusion bonded to the filter media, the filter mesh assembly disposed in the housing between the inlet and the breaker plate with the filter media preventing passage of particulate material and the wire mesh assembly allowing both, passage of molten plastic to the breaker plate and lateral movement of the molten plastic parallel to the breaker plate.