Kabushiki Kaisha Kobe Seiko Sho

Kobe Steel, Ltd.

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

Osamu Ikeda

Yasuo Yoshii

Yoshiaki Nakata

Masashi Konno

Shinichi Fukumizu

Nobuhiro Yamasaki

Kazuo Iritani

Nobuki Nagami

Shin Iwasaki

Taiji Orimo

Kazuyoshi Imuta

Keizo Arita

Hiroshi Ogasawara

In a resin granulating apparatus of the present invention, a bracket extending in the outward radial direction over an outer peripheral surface of a sleeve is provided for the sleeve for rotatably supporting a cutter shaft of a cutter for shearing a material extruded from a die. Stopper means cooperating with the bracket to regulate movement of the sleeve toward the die and moving a regulation position in the axial direction is provided on the radially outer side over an outer diameter of the sleeve. With such a configuration, installation space is compactified so as to additionally provide the stopper means in the existing facilities, and a position of the cutter relative to a die surface is precisely adjusted so as to stably produce a pellet of a best shape.

Resin granulating apparatus

A cutter machine has a knife holdermounted onto a cutter shaftat the center portion, wherein a material to be cut is cut with knivesmounted onto the outer circumference of the knife holderby rotating the knife holderaround the cutter shaft. The knife holderis separated into a fixing membermounted onto the cutter shaftand a mounting memberonto which the knivesare mounted. The mounting memberis pivotally supported around two axes with respect to the fixing member. In the cutter machine, the knives and a die plate come into contact with each other by a small press force of the knives, thereby enabling a satisfactory cutting to be obtained.

Cutter machine

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

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

In an extruder of the type including an extruding cylinder with an outlet at one end thereof and an extruding screw rotatably disposed in the cylinder and circumferentially formed with a feed flight member for forwarding a plasticized material through the outlet of said cylinder for extrusion through a screen located at the fore end of the extruding cylinder, a screen/diverter changing mechanism including a retainer box fixed to the fore outlet end of the extruding cylinder and internally defining a flow passage of the plasticized material to be extruded; a slide body movable transversely in a guide bore of the retainer box across the flow passage thereof; a screen unit detachably fitted in the slide body and having a screen and a plurality of nozzles; a diverter unit detachably fitted in the slide body and having a diverting flow passage for diverting the flow of the plasticized material from the cylinder; a drive mechanism linked to the slide body for selectively positioning either the screen unit or diverter unit in the flow passage of the retainer box; and a die plate fixedly mounted on the front side of the retainer box and having a plurality of nozzles for extruding the plasticized material fed from the cylinder through the screen unit.

Screen/diverter changing mechanism for extruders

Growing community of inventors

Takasago, Japan

Osamu Ikeda