Two-component extrusion die

Details Two-component extrusion die Two-component extrusion die

A - Human Necessities

23

P

A23P 1/12 (2006.01) A22C 11/00 (2006.01)

Patent

CA 2179764

The invention relates to a two-component extrusion die, located downstream of an extrusion-cooking or extrusion system of the split-compartment twin-screw type or of the single-screw type with splitting of the flow into two, comprising at the outlet of the inflow channel of one of the components: a) a supply tube (13) for the central component, the said tube having, from the upstream side to the downstream side, a first zone I having a cross-section in the form of a star (19), a second zone II with at least two longitudinal openings (18) in order to allow inflow of the second component, the said openings emerging between the branches of the star and a third zone III allowing the two components to combine; b) a distributor (14) surrounding the first zone of the tube in order to create a chamber (21) and allow inflow of the second component through the longitudinal openings (18) in the supply tube; and c) a nozzle (15) extending the distributor, reducing the volume of the inflow chamber (21) for the second component and surrounding the third zone III of the supply tube (13).

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