Kautschukextruder und Verfahren zum Extrudieren von Kautschuk

Details

Veröffentlichungs-Nr.

EP3702125

Aktenzeichen

EP20159818

Anmeldetag

27. Februar 2020

Veröffentlichung

21. Juni 2023

Erteilung

21. Juni 2023

Rechtsraum

EP

IPC

B29C48/50B29C48/56

Abstract

A rubber extruder includes a barrel, a feeding portion for feeding unvulcanized rubber to the interior of the barrel, and a screw for extruding the unvulcanized rubber fed in the interior of the barrel toward an extruding direction, the screw having at least one helically extending flight to define at least one helically extending channel, characterized in that the interior of the barrel includes a dividing section for dividing the unvulcanized rubber, a kneading section for kneading the divided unvulcanized rubber locally, and a compression section for compressing the kneaded unvulcanized rubber toward the extruding direction, wherein the compression section is configured such that the screw therein has a volume of the channel decreasing gradually toward the extruding direction.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete