Abstract: An extruder includes a cylinder 2 and a die 5 attached to the cylinder 2. The die 5 has a resin flow path portion 22 to which a molten resin is supplied from the cylinder 2 and a hole 21 which is connected to the resin flow path portion 22 and from which the molten resin is discharged. The extruder further includes a pressure measurement unit 31 configured to measure a pressure of the molten resin in the cylinder 2 or the die 5 and a calculation unit configured to calculate a viscosity of the molten resin based on a measured value of the pressure measurement unit 31.

Abstract: An extrusion device includes a cylinder, a raw material feed port, a screw incorporated in cylinder, a die disposed at one end of the cylinder, and adjustment mechanisms. Raw material feed port supplies raw materials including resin into cylinder. Screw is able to melt the raw materials through kneading. Die includes a plurality of through-holes for ejecting strands made of molten resin supplied from cylinder. Adjustment mechanisms individually adjust ejection amounts of the strands ejected from the plurality of through-holes.

Abstract: A simulation device for calculating a predetermined physical quantity in a kneading extruder, the simulation device comprises: an acquisition unit configured to acquire at least a characteristic of a first raw material and a characteristic of a second raw material, the first raw material and the second raw material being injected into the kneading extruder; and a calculation unit configured to calculate a physical quantity of a mixture of the first raw material and the second raw material based on the characteristics of the first raw material and the second raw material acquired by the acquisition unit.

Abstract: The apparatus of the invention includes: an acquisition unit 101 that acquires input information including resin properties and acquires, as output information, a specified value of a physical quantity related to a kneaded resin or a kneading machine; a storage unit 16 that stores a knowledge file 162 containing correlations among the input information, the physical quantity and a plurality of screw configurations; and a search unit 106 and a configuration generator unit 107 together that infers, on the basis of the input information and the knowledge file 162, such a screw configuration that is able to meet the specified value.

Abstract: The apparatus of the invention includes: an acquisition unit 101 that acquires input information including resin properties and acquires, as output information, a specified value of a physical quantity related to a kneaded resin or a kneading machine; a storage unit 16 that stores a knowledge file 162 containing correlations among the input information, the physical quantity and a plurality of screw configurations; and a search unit 106 and a configuration generator unit 107 together that infers, on the basis of the input information and the knowledge file 162, such a screw configuration that is able to meet the specified value.

Abstract: A strand manufacturing apparatus capable of reducing variations among diameters of resin strands without stopping the operation of an extruder is provided. A strand manufacturing apparatus includes a die in which an outflow hole for discharging a resin material contained in an extruder as a string-shaped resin strand is formed, an adjustment valve configured to adjust opening of the outflow hole, an image acquisition unit configured to acquire an image of the resin strand extruded from the outflow hole, a diameter acquisition unit configured to acquire a diameter of the resin strand in the image, and an opening adjustment unit configured to adjust the opening by driving the adjustment valve based on the diameter of the resin strand acquired by the diameter acquisition unit.

Abstract: A simulation apparatus includes an 1D analysis unit which performs a low-dimensional fluid-flow analysis of material in an arithmetic object field of a kneading device, based on setting information including physical property of the material, and configuration data and an operation condition of the kneading device for kneading the material, an area selection unit which receives selection of an object area as an object of a high-dimensional fluid-flow analysis in the arithmetic object field, and a 3D analysis unit which extracts physical quantities of the material relating to the object area, based on a result of the low-dimensional fluid-flow analysis, and performs a high-dimensional fluid-flow analysis of the material in the object area, based on the extracted physical quantities and the setting information.

Abstract: A simulation apparatus includes an 1D analysis unit which performs a low-dimensional fluid-flow analysis of material in an arithmetic object field of a kneading device, based on setting information including physical property of the material, and configuration data and an operation condition of the kneading device for kneading the material, an area selection unit which receives selection of an object area as an object of a high-dimensional fluid-flow analysis in the arithmetic object field, and a 3D analysis unit which extracts physical quantities of the material relating to the object area, based on a result of the low-dimensional fluid-flow analysis, and performs a high-dimensional fluid-flow analysis of the material in the object area, based on the extracted physical quantities and the setting information.