Extrusion die with deckle system and methods of using same

摘要

In extrusion system includes an extrusion die and a deckle system. In one embodiment, the deckle system includes a deckle rod and a cam member operatively coupled to the deckle rod. A cam controller controls the cam member. The cam member cams with the deckle rod in response to actuation of the cam controller. The camming action forces the deckle rod to seal an end region of the extrusion die.

主权项

1. An extrusion die having a manifold, an internal flow passageway, an orifice having an end region, and an internal deckle system, said internal deckle system comprising a downstream internal deckle member, a deckle rod, a cam member, and a cam controller, said downstream internal deckle member being located within said internal flow passageway and having a downstream edge alongside said deckle rod, said cam member being configured to rotate about a pivot point in response to actuation of said cam controller such that said cam member contacts said deckle rod and thereby forces said deckle rod to seal an end region of said orifice.