Kabushiki Kaisha Kobe Seiko Sho

Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

Shinichi Fukumizu

Nobuki Nagami

Masashi Konno

Osamu Ikeda

Taiji Orimo

Nobuhiro Yamasaki

Yasuo Yoshii

Yoshiaki Nakata

Kimio Inoue

Tsugushi Fukui

Kazuyoshi Imuta

Shinji Hashizume

Jun Yamanaka

Akiro Fusamoto

Taii Orimo

Hideki Uota

Hiroshi Ogasawara

Toru Yomogida

A die for manufacturing resin pellets capable of processing a die plate easily, and achieving simplification of a construction of heat channels and enhancement of heating efficiency. A die for manufacturing resin pellets provided with a number of nozzle orifices in the outer surface of the die, there are provided a plurality of rows of heat channels which extend in a direction crossing the resin channels in the vicinity of the outer surface of the die and are arranged along the resin channels . At least one of an introducing course and a discharging course for a heat medium in the plurality of heat channels

Die for manufacturing resin pellets

Filter member and screen changer for use in resin extruder

A driving mechanism for driving a gear pump of a dual drive type having two shafts comprises a reversing gear having a pair of output shafts which rotate respectively in opposite directions at the same rotating speed, and a pair of gear couplings connecting the gear pump to the reversing gear. One of the pair of gear couplings comprises: a shaft, a first coupling head disposed on one end of the shaft, and a second coupling head disposed on the other end of the shaft. The number z.sub.1 of teeth of the component external spur gears and internal spur gears of the first coupling head is not equal to the number z.sub.2 of teeth of the component external spur gears and internal spur gears of the second coupling head. The angular difference between the external spur gears of the second coupling head is converted into a corresponding number of teeth of the external spur gear of the third coupling sleeve by calculation using the difference between the central angle including one tooth of the external gear of the first coupling head and the central angle including one tooth of the external gear of the second coupling head, and the third coupling sleeve is turned through an angle corresponding to the calculated number of teeth.

Driving mechanism for driving a gear pump for forcing a highly viscous

An underwater pelletizing apparatus for realizing and stabilizing a pressure to press a cutting knife against a die plate, for preventing shaft vibration, and for decreasing wear of the cutting knife. The die plate and a water chamber casing are removably mounted at a thermoplastic material extrusion opening section; the cutting knife is disposed at the front of the die plate; a cutter shaft with the knife mounted at the forward end thereof is rotatably and axially movably supported in the water chamber casing and a shaft supporting housing to thereby move the cutter shaft forward and backward by means of a fluid pressure cylinder; and a locking means is provided for intermittently locking the axial movement of the cutter shaft.

Underwater pelletizing apparatus

A melt pump comprises a pump housing having an intake port and a discharge port and a pair of gear rotors. Each of the pair of gear rotors having a gear part and a shaft part integrated with each other, which are arranged within the pump housing in such a manner as to be rotatable in mutually meshing condition. The melt pump further comprises a recovering passage for guiding resin leaking through a clearance between the pump housing and each of the pair of gear rotors into the intake port, a cooling hole drilled inside each of the gear rotors while facing to each clearance forming region; and a pipe inserted into the cooling hole for supplying cooling liquid. A sleeve for lining the internal periphery of the cooling hole is located in the hole so as to utilize the inside of the sleeve as a cooling liquid passage.

Melt pump

Disclosed is a two-shaft continuous mixer used for homogenization of plastics, manufacture of compounds of composite plastics and the like. A mixing control apparatus is also provided, in which a gear pump as a material discharge mechanism is directly coupled to a material discharge opening, in which apparatus, a mixing degree is positively controlled within the mixer under the constant feed condition of the pump over the wide range of viscosities under the stabilized operation. Movable dams are also provided.

Continuous mixer

Single screw kneading extruder

A continuous mixer of the duplex type which has within a chamber a pair of mixing shafts each with a feed portion, a mixing portion and a discharge portion is disclosed. The mixer includes a weir member provided on the bottom wall of the chamber at a position opposing the discharge portions of the respective mixing shafts, to prevent short-passes of unmelted material.

Duplex type continuous mixer

Growing community of inventors

Takasago, Japan

Shinichi Fukumizu