Abstract: In a twin extruder wherein an underwater cutting apparatus 12 is connected, via a gear pump 9, to an discharge port 8 of a cylinder 1 which houses therein twin screws both ends of which are supported, both sides of both screws 2, 3 are material conveying sections 5a, 5b having flights of small lead, the downstream sides of the respective material conveying sections 5a, 5b are kneading sections 6a, 6b having flights of large lead, both kneading sections 6a, 6b are connected about the center of the screws 2, 3, and the cylinder 1 positioned at the center of the screws 2, 3 is provided with the discharge port 8.

Abstract: An underwater granulating method in which thermoplastic resin material is kneaded and melted by a kneading extruder while the melted resin material is extruded into cooling water from nozzles of a die with its external surface covered with the cooling water, and the resin material extruded in thin strings is cut by a cutter device driven to move along the external surface of the die.

Abstract: An object of the present invention is to provide a kneading and extruding machine which includes a screw type two-shaft kneader and a gear pump in which the degree of kneading melted resin material can be made uniform at the discharging port of the screw type two-shaft kneader. In the kneading and extruding machine of the present invention, the height of scraping flights or inverse flights of the screw in the discharging section of the screw type two-shaft kneader is determined to be an average of the inner diameter of the cylinder and the bottom diameter of the groove of the screw at the most.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material folws, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material flows, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: An object of the present invention is to provide a kneading and extruding machine which includes a screw type two-shaft kneader and a gear pump in which the degree of kneading melted resin material can be made uniform at the discharging port of the screw type two-shaft kneader. In the kneading and extruding machine of the present invention, the height of scraping flights or inverse flights of the screw in the discharging section of the screw type two-shaft kneader is determined to be an average of the inner diameter of the cylinder and the bottom diameter of the groove of the screw at the most.

Abstract: A highly reliable display control apparatus and method suitable for use in a computer control system which is required to have high degree of reliability, such as control systems for railroad traffic or a nuclear power station. A meaningful symbol is divided into a plurality of sections and these sections are independently input to either one of the inputs of an interactive man-machine system through different systems so that these sections of the meaningful symbol are displayed in the same frame of the man-machine system, thus enabling the operator to visually detect any abnormality as to whether the displayed meaningful symbol is complete or not, whereby a high degree of reliability of the display is obtained.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material flows, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: A cylinder temperature controlling device includes at least one of a plurality of block cylinders split into an upper block and a lower block, said block cylinders arranged in horizontal axis to form a cylinder, heater units, for heating said upper block and said lower block, provided with said upper block and said lower block, respectively, cooling units for cooling said upper block and said lower block, provided with said upper block and said lower block, respectively, and temperature detecting units for detecting a tempature of said upper block and a tempature of said lower block, provided with said upper block and said lower block, respectively.

Abstract: A system is provided for the preparation of a cyclic maintenance work schedule table. The system includes a display unit which can show boxes defined by dates in a desired period and the names of individual workers.

Abstract: A method of retrieving and editing distributed information, in which one of a plurality of equipment units connected to a common signal transmission line issues or originates a request to retrieve data information distributed among and stored in respective files of the other equipment units and to edit the distributed data information. The above-mentioned one equipment unit sends to the transmission line a retrieval request message containing retrieval information necessary to retrieve distributed data information. Each of the equipment units storing therein distributed data information receives the retrieval request message from the transmission line, and the files are retrieved on the basis of the retrieval information to retrieve the distributed data information. The data information retrieved in at least a first one of the equipment units storing therein the distributed data information is sent to the transmission line.