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US 2005/0100624 A1Published application
Rubber extruder
AssigneeMultiple LLC
InventorsChih-Hao Yang, Hsueh-Cheng Liao
Life of this patent
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Abstract
A rubber extruder includes a barrel, a screw rod extending into the barrel, a threaded member threadedly engaging the screw rod and rotatable relative to the screw rod, a limiting member for limiting rotation of the screw rod upon rotation of the threaded member so as to permit axial movement of the screw rod, and a driving unit for rotating the threaded member.
Claims5
A rubber extruder comprising:
- a fixed cylindrical barrel adapted to receive a rubber material and having a die end and an opposite end opposite to said die end;
- an extrusion die mounted in said die end of said cylindrical barrel;
- a screw rod having an inner section that extends co-axially through said opposite end of said cylindrical barrel and into said cylindrical barrel and that has an abutting end adapted to abut against the rubber material, and an outer section that extends axially from said inner section and that is disposed outwardly of said cylindrical barrel, said screw rod being movable in an axial direction relative to said cylindrical barrel so as to extrude the rubber material through said extrusion die;
- a coupling unit including a threaded sleeve that is sleeved rotatably on and that engages threadedly said outer section of said screw rod;
- a fixed limiting member in constant engagement with said screw rod in such a manner that rotation of said threaded sleeve results in axial movement of said screw rod relative to said cylindrical barrel;
- and
- a driving unit for rotating said threaded sleeve.
4 more elements
Dependencies are inferred from the claim text.