Ricoh Company, Ltd.

Asada Iron Works Co., Ltd.

Ippei Muneoka

Satoshi Izumi

Tetsuya Tanaka

Masahiro Kawamoto

Kenta Kenjoh

Shinya Oda

Akihiko Matsumoto

The present invention can suppress variations in dispersion and grinding processing, apply stable shearing force to a material to be processed, and also enable efficient dispersion and grinding. The present invention has a supply portion (A), a processing portion (B), and a discharge portion (C). The processing portion (B) includes a stator (), and a rotor (). The material to be processed is processed in a gap (Gt) between an outer peripheral surface of the rotor () and an inner peripheral surface of the stator (). The inner peripheral surface of the stator () and the outer peripheral surface of the rotor () are circular in a cross section orthogonally intersecting the axis of the rotor () and linear in a cross section bearing the axis. The gap (Gt) is constant in the circumferential direction and the axial direction.

Dispersion and grinding machine

A continuous kneading apparatus including: a stationary portion having an internal space where matter is conveyed; a rotary disc member and a screw member which are configured to convey the matter in the internal space; a drive shaft member to which the rotary disc member and the screw member are fixed; and a cooling medium passage through which a cooling medium passes, wherein the cooling medium passage is provided for the screw member which is placed upstream of the rotary disc member with respect to the conveyance direction of the matter, wherein the cooling medium passing in the cooling medium passage is lower in temperature than the matter passing in the internal space, and wherein the matter passes in the internal space while provided with shear force by rotation of the drive shaft member and thus continuously kneaded, and while cooled by the cooling medium.

Kneading apparatus and method for producing toner

Growing community of inventors

Osaka, Japan

Ippei Muneoka