Abstract: The invention provides a method of producing a solid material, and the method includes: applying a light coloring substance to at least one of an inner surface of a die bore, an upper end surface of a lower punch, and a lower end surface of an upper punch; filling a powdery material in the die bore; compression molding the powdery material filled in the die bore with use of the upper punch and the lower punch; and irradiating with light a molded product obtained by the compression molding to color the molded product.

Abstract: A compression molding machine includes a first spray device configured to spray an external lubricant to at least one of the inner surface of a die bore, the upper end surface of a lower punch, and the lower end surface of an upper punch, and a second spray device configured to spray a coating agent for blocking a strange taste or an odor of a molded product, or the like, to at least one of the inner surface of the die bore, the upper end surface of the lower punch, and the lower end surface of the upper punch.

Abstract: An agitating feeder is provided in a compression molding machine that includes at least one die having a die bore, an upper punch and a lower punch retained respectively above and below the die so as to be vertically slidable, and a compression mechanism for compressing and molding a powdery material filled in the die bore by the upper punch and the lower punch. The agitating feeder includes an agitating rotor for rotating to agitate the powdery material, a housing accommodating the agitating rotor, and a gas flow device for flowing gas in the housing.

Abstract: A compression molding machine includes a first spray device configured to spray an external lubricant to at least one of the inner surface of a die bore, the upper end surface of a lower punch, and the lower end surface of an upper punch, and a second spray device configured to spray a coating agent for blocking a strange taste or an odor of a molded product, or the like, to at least one of the inner surface of the die bore, the upper end surface of the lower punch, and the lower end surface of the upper punch.

Abstract: A compression molding machine includes a feeder that has a feeder main body, a sealing frame attached to the feeder main body and having a supply port allowing a powdery material to pass therethrough, a first elastic member comprised between the sealing frame and the feeder main body, a sealing member attached to the sealing frame and preventing the powdery material from leaking, and a second elastic member comprised between the sealing member and the sealing frame.

Abstract: The invention provides a method of producing a solid material, and the method includes: applying a light coloring substance to at least one of an inner surface of a die bore, an upper end surface of a lower punch, and a lower end surface of an upper punch; filling a powdery material in the die bore; compression molding the powdery material filled in the die bore with use of the upper punch and the lower punch; and irradiating with light a molded product obtained by the compression molding to color the molded product.

Abstract: A powder compression molding machine includes a downward spray portion that sprays a lubricant toward an inner circumferential surface of a die bore and a tip face of a tip of a lower punch, an upward spray portion that sprays the lubricant toward a tip face of the tip of the upper punch, a first lubricant flow passage through which the lubricant supplied from a lubricant supply device externally provided is fed to the downward spray portion, and a second lubricant flow passage through which the lubricant supplied from the lubricant supply device externally provided is fed to the upward spray portion. A small-diameter region of which an inner diameter is made smaller than that of the first lubricant flow passage is provided at a part of the second lubricant flow passage.

Abstract: A compression molding machine includes a feeder that has a feeder main body, a sealing frame attached to the feeder main body and having a supply port allowing a powdery material to pass therethrough, a first elastic member comprised between the sealing frame and the feeder main body, a sealing member attached to the sealing frame and preventing the powdery material from leaking, and a second elastic member comprised between the sealing member and the sealing frame.

Abstract: An agitating feeder is provided in a compression molding machine that includes at least one die having a die bore, an upper punch and a lower punch retained respectively above and below the die so as to be vertically slidable, and a compression mechanism for compressing and molding a powdery material filled in the die bore by the upper punch and the lower punch. The agitating feeder includes an agitating rotor for rotating to agitate the powdery material, a housing accommodating the agitating rotor, and a gas flow device for flowing gas in the housing.

Abstract: A nozzle structure is mounted in a compression molding machine that compresses using a punch a powder material filled in a die to manufacture a compressively molded product, and sprays a lubricant at least toward a tip of the punch prior to filling the powder material and includes a guide path that guides the lubricant, and a spraying portion that is provided at an end of the guide path so as to communicate therewith and that sprays the lubricant guided along the guide path so as to be substantially aligned with a predetermined straight line intersecting at least in a direction of relative displacement of the punch.

Abstract: A powder compression molding machine includes a downward spray portion that sprays a lubricant toward an inner circumferential surface of a die bore and a tip face of a tip of a lower punch, an upward spray portion that sprays the lubricant toward a tip face of the tip of the upper punch, a first lubricant flow passage through which the lubricant supplied from a lubricant supply device externally provided is fed to the downward spray portion, and a second lubricant flow passage through which the lubricant supplied from the lubricant supply device externally provided is fed to the upward spray portion. A small-diameter region of which an inner diameter is made smaller than that of the first lubricant flow passage is provided at a part of the second lubricant flow passage.

Abstract: A rotary powder compression molding machine configured to compression-mold powder filled in a die bore of a die mounted on a turret between a lower end face of an upper punch and an upper end face of a lower punch, is provided including powder lubricant jet means for jetting powder lubricant, the powder lubricant jet means including: jet nozzles, each of which has a concave surface, faces a respective one of end faces of the upper and lower punches at a respective powder lubricant jet position, and is configured to guide the powder lubricant along the concave surface and jet the powder lubricant in substantially one direction; an air stream providing mechanism configured to jet an air stream to adjacent the lower end face of the upper punch for preventing the powder lubricant jetted from the jet nozzles from scattering upwardly; and a charger device configured to charge the powder lubricant electrostatically upon jetting from the jet nozzles.

Abstract: A nozzle structure is mounted in a compression molding machine that compresses using a punch a powder material filled in a die to manufacture a compressively molded product, and sprays a lubricant at least toward a tip of the punch prior to filling the powder material and includes a guide path that guides the lubricant, and a spraying portion that is provided at an end of the guide path so as to communicate therewith and that sprays the lubricant guided along the guide path so as to be substantially aligned with a predetermined straight line intersecting at least in a direction of relative displacement of the punch.

Abstract: This invention provides a powder compression molding machine including: upper punches and lower punches disposed to face with each other along one central axis; die holes allowing tips of the upper punches and the lower punches to be respectively inserted thereinto, the upper punches and the lower punches being shifted to approach each other with the tips thereof being inserted in the corresponding die holes, so that a powder material filled in the die holes is compressed and molded; and powder lubricant spraying means for spraying a powder lubricant toward the die holes before the powder material is filled therein, wherein the powder lubricant spraying means includes: a downward spray nozzle that sprays the powder lubricant toward the die holes; a powder lubricant retrieving mechanism that retrieves a superfluous powder lubricant out of the powder lubricant sprayed from the powder lubricant spraying means; a charging device that electrostatically charges the powder lubricant sprayed from the downward spray n

Abstract: A rotary powder compression molding equipment arranged to compression molding powder filled in the mortar hole of a mortar fixed to a rotary disc between the lower end face of an upper pestle and the upper end face of a lower pestle, wherein a means for injecting powder lubricant comprises an injection nozzle having a concave surface and injecting powder lubricant L being guided to the concave surface substantially in one direction while facing the end faces of the upper and lower pestles at respective supply positions of powder lubricant, an air flow supply mechanism for injecting air flow to the vicinity of the lower end face of the upper pestle in order to prevent upward scattering of the powder lubricant injected from the injection nozzle, and a charger for charging the powder lubricant when it is injected from the injection nozzle.

Abstract: In a rotary compressive molding machine for powder material wherein powder material filled in a die hole of a die mounted on a rotary table is compressed and molded between a lower end face of the upper punch and an upper end face of the lower punch, a powder lubricant spraying means that sprays powder lubricant comprises a spray nozzle that has a concave face facing to the lower end face of the upper punch or the upper end face of the lower punch at a position where the powder lubricant is sprayed and that sprays the powder lubricant generally toward a direction of the lower end face of the upper punch or the upper end face of the lower punch guided by the concave face, an air current supply mechanism that prevents the powder lubricant sprayed from the spray nozzle from scattering upward by spraying air near the lower end face of the upper punch, and an electrostatic charge device that electrizes the powder lubricant when the powder lubricant is sprayed from the spray nozzle and that electrizes at least the