Kneader
AssigneeKabushiki Kaisha Kobeseikosho
InventorsTsugushi Fukui, Kimio Inoue, Yoshinori Kuroda, Hiroshi Ueda, Masahiko Kashiwa
Life of this patent
Estimating the term…
Abstract
A kneader with a vent function, including a kneading extruder, which permits the continuous viscous flow of material to be kneaded even at a high speed rotation to prevent the generation of cuttings and exhibiting sufficient venting capability. The kneader includes a barrel having kneading chambers defined therein, a rotor rotatably inserted into the kneading chambers, and having a feed portion on an outer peripheral surface thereof. A vent port is in communication with the kneading chamber of the barrel at a position around the feed portion. The feed portion in a vent zone includes a screw tip having a material feed surface with an outwardly curved surface in section.
Claims20
An kneader comprising:
- a barrel having an axially extending kneading chamber and a vent port in communication with said kneading chamber, and
- a rotor rotatably inserted into said kneading chamber, having a kneading portion and a feed portion having a shape different from that of said kneading portion, said feed portion being spaced from said kneading portion along the length of said rotor and having a screw tip on an outer peripheral surface thereof and being positioned in a vent zone including said vent port,
- wherein said screw tip of said feed portion in said vent zone has a material feed surface comprising an outwardly curved surface in axial section.
A kneader comprising:
- a barrel having an axially extending kneading chamber and a vent port in communication with said kneading chamber, and
- a rotor rotatably inserted into said kneading chamber, said rotor having a kneading portion and a feed portion, having a shape different from that of said kneading portion, said feed portion being spaced from said kneading portion along the length of said rotor and having a screw tip on an outer peripheral surface thereof and being positioned in a vent zone including said vent port,
- wherein said screw tip of said feed portion in said vent zone has a material feed surface and a material feed back surface, both comprising respective outwardly curved surfaces in axial section.
Dependencies are inferred from the claim text.