Roller die preformer for wide extrusions

A roller die preformer (16) for use in an extrusion system (10) to form wide extruded components, such as a rubber tire tread, on a surface (22) of a roller (18). The roller die preformer (16) includes a flow inlet (28), a flow outlet (32) and a laterally expanding flow channel (30) extending from t...

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Bibliographic Details
Main Authors TURNER, BRUCE JOSEPH, LOOMAN, ERNEST WILFORD, JR
Format Patent
LanguageEnglish
French
German
Published 19.10.2005
Edition7
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A roller die preformer (16) for use in an extrusion system (10) to form wide extruded components, such as a rubber tire tread, on a surface (22) of a roller (18). The roller die preformer (16) includes a flow inlet (28), a flow outlet (32) and a laterally expanding flow channel (30) extending from the flow inlet to the flow outlet. A flow restrictor (48) is configured within the flow channel (30) to urge the flow of material toward the lateral extremities of the flow channel to thereby form an extruded component (20) at the flow outlet (32) having a lateral width which is greater than the lateral width of the flow inlet (28) of the preformer (16).
Bibliography:Application Number: EP20040102683