Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Shin Hotani

Hiroshi Ueda

Shoji Yasuda

Masahiko Kashiwa

Kazuyoshi Imuta

Katsunori Takahashi

Yoshinori Kuroda

Yoshimitsu Tanaka

Kimio Inoue

Yasuaki Yamane

Tsugushi Fukui

Koichi Miyake

Taiji Orimo

Takeshi Hatanaka

Hirofumi Kimura

Tatsuto Nagaoka

Kazuo Yamaguchi

Ryota Minato

A mixing/extruding apparatus having a mixer/extruder provided with a diverter, an electric motor for driving this mixer/extruder, and a power supply device for supplying a drive power to this electric motor, and the power supply device includes a start-up power supply portion for supplying a drive power with which the electric motor is rotated at low speed with a smaller output than an output generated upon the normal operation to the electric motor, an operation power supply portion for supplying a drive power with which the electric motor is rotated at high speed with the output generated upon the normal operation to the electric motor, and a power supply switching device for switching the drive power from the start-up power supply portion to be supplied to the electric motor to the drive power from the operation power supply portion.

Mixing/extruding apparatus and start-up method for mixing/extruding apparatus

A mixing degree adjusting device comprises a pair of spacer members arranged at a position sandwiching both round sectional portions of a pair of screws from both sides in the aligning direction of the pair of screws, and a pair of drawing members arranged as a position sandwiching both the round sectional portions from both sides in the orthogonal direction that is orthogonal to the aligning direction. The spacer members are movable between an adjusting position opposing to the round sectional portions, and a retracting position, when the screws are extracted from the barrel, for retracting to the outside until the passage of the screws is accepted. Opposing portions opposing to the round sectional portions at the time of moving to the adjusting position are formed in a substantially linear shape extending in parallel with the orthogonal direction seen from the axial direction of the screws. The drawing members are movable in the direction approaching to and retracting from the round sectional portions along the opposing portions in an area intervening between the opposing portions of both the spacer members at the time of moving to the adjusting position, and when the screws are extracted from the barrel, retractable to the outside until the passage of the screws is accepted.

Intermeshing type twin screw extruder and mixing degree adjusting device

In a continuous mixer, a chamber formed in a barrel comprising a feed port for feeding raw material to be mixed on one end side and a discharge port for discharging mixed material on the other end side. A pair of screw provided in the chamber has a feed part for conveying raw material to be mixed which is fed through the feed port and a mixing part for mixing the raw material. The barrel is provided with a raw material discharge port for communicating the position corresponding to the feed part in the chamber to the outside of the barrel, and an opening/closing cover for freely opening and closing the raw material discharge port. The screw can be rotated reversibly. Even though large amounts of raw materials to be mixed may stay in the chamber due to an emergency stop, the raw materials can be easily discharged from the raw material discharge port.

Continuous mixer and operating method thereof

A screw with a heat exchange function is rotatably fit in a barrel, and includes a heat exchange medium chamber located at a center section in the radial direction, running along the lengthwise direction. The chamber stores a heat exchange medium supply pipe supplying a heat exchange medium. The heat exchange medium supply pipe is constituted by split pipes split into two or more sections in the lengthwise direction. Pipe connection joints connect the split pipes with each other while securing such degrees of freedom so that these split pipes can move by predetermined quantity in the lengthwise direction and the radial direction. The screw enables to stably supply a heat exchange medium for a long period without fatigue fracture of a heat exchange medium supply pipe even if the screw is bent during mixing and extrusion of a raw material.

Screw with heat exchange function, mixer and extruder

A continuous mixer in which a pair of left and right rotors,are rotatably inserted into a chamber,having a feed port,and a discharge port,for materials at both axial ends, respectively, a gate device,for adjusting the polymer flow resistance of the materials is provided halfway in the axial direction of the chamber,, and a first and a second mixing portions,are formed at portions, respectively, of the rotors,positioned upstream and downstream of the gate device,, wherein a forced feed means,for forcibly post-adding the materials is connected to a portion downstream of the gate device,in the chamber,and upstream of the discharge port

Continuous mixer

A continuous mixer in which the rotors used to mix the material are composed of a rotor shaft, and a plurality of rotor segments fitted onto said rotor shaft. The plurality of rotor segments can be removed from the shaft and replaced by rotor segments of differing specifications to produce a rotor of a different shape and specifications in accordance with any change in the kind of mixing conditions required.

Continuous mixer and rotor segment removal tool for the same

Growing community of inventors

Takasago, Japan

Shin Hotani