Abstract: Disclosed is a powdery material filling device with a redundant (i.e., excess or waste) powdery material recovering mechanism. The powdery material filling device may be used in a rotary compression molding machine. In certain aspects, the redundant powdery material recovering mechanism is capable of actively recovering and reusing a redundant (i.e., excess or waste) powdery material even upon production of multi-layer tablets.

Abstract: In order to achieve reduction of a space occupied in a plant for manufacturing pharmaceutical tablets or the like, there is provided a compression molding machine that includes a table, an upper punch and a lower punch, a molded product collection mechanism, a molded product reservoir, and a housing for accommodating a connection end of an air convey path connected to the molded product reservoir. In this configuration, there is no need to additionally provide a dust removing device or a lifter outside the machine.

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: A punch of a compression molding machine is configured to be assembled with no use of any tool and achieves reduction in time necessary for the assembling process. The punch includes a punch tip member, a holder provided, at a distal end thereof, with a projection projecting radially outward, a cap having a disengagement inhibiting portion engaged with the projection of the holder so as to inhibit the projection from inserted thereinto and extracted therefrom in the axial direction, and a rotation inhibiting member engaged with the holder and the cap attached with the punch tip member so as to inhibit axial rotation of the cap relative to the holder.

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 plurality of plate units that are provided between a lower punch retainer and an upper punch retainer. The plate units each include: a plate having a through bore to be filled with a powdery material that is compressed by an upper punch and a lower punch; and a plate attachment member having a mount portion mounted to a vicinity of an upright shaft, a positioning surface positioning the upper surface of the plate, and a plate attaching portion attaching the plate from below to above, such that the upper surface of the plate is positioned at the positioning surface.

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: The powder compression molding machine includes: a case having a frame; a fresh air intake provided to the case; a suction port for drawing in an atmosphere in the case; an internal pressure measure that measures internal pressure in the case; a suction force measure that measures a suction force for drawing in the atmosphere in the case from the suction port; and a suction force control device that controls the suction force for drawing in the atmosphere in the case from the suction port. The internal pressure in the case is controlled by controlling the suction force by the suction force controller based on the internal pressure in the case measured by the internal pressure measure and/or the suction force measured by the suction force measure.

Abstract: A rotary powder compression molding machine according to the invention includes: a flame; a rotary shaft; a turret; a plurality of die; an upper and a lower punches; an upper and a lower rolls; a designator for designating a molding portion constituted of a set of the die and the upper and lower punches corresponding to the die; a position detector for detecting that the molding portion designated by the designator has reached a predetermined position; a separator for separating a designated molded article ejected from the molding portion designated by the designator from collection of molded articles other than the designated molded article based on a position detection signal output from the position detector; and an actuation verifier for verifying actuation of the separator based on movement of the designated molded article.

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: In order to achieve reduction of a space occupied in a plant for manufacturing pharmaceutical tablets or the like, there is provided a compression molding machine that includes a table, an upper punch and a lower punch, a molded product collection mechanism, a molded product reservoir, and a housing for accommodating a connection end of an air convey path connected to the molded product reservoir. In this configuration, there is no need to additionally provide a dust removing device or a lifter outside the machine.

Abstract: A punch of a compression molding machine is configured to be assembled with no use of any tool and achieves reduction in time necessary for the assembling process. The punch includes a punch tip member, a holder provided, at a distal end thereof, with a projection projecting radially outward, a cap having a disengagement inhibiting portion engaged with the projection of the holder so as to inhibit the projection from inserted thereinto and extracted therefrom in the axial direction, and a rotation inhibiting member engaged with the holder and the cap attached with the punch tip member so as to inhibit axial rotation of the cap relative to the holder.

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 according to the invention includes: a flame; a rotary shaft; a turret; a plurality of die; an upper and a lower punches; an upper and a lower rolls; a designator for designating a molding portion constituted of a set of the die and the upper and lower punches corresponding to the die; a position detector for detecting that the molding portion designated by the designator has reached a predetermined position; a separator for separating a designated molded article ejected from the molding portion designated by the designator from collection of molded articles other than the designated molded article based on a position detection signal output from the position detector; and an actuation verifier for verifying actuation of the separator based on movement of the designated molded article.

Abstract: The powder compression molding machine includes: a case having a frame; a fresh air intake provided to the case; a suction port for drawing in an atmosphere in the case; an internal pressure measure that measures internal pressure in the case; a suction force measure that measures a suction force for drawing in the atmosphere in the case from the suction port; and a suction force control device that controls the suction force for drawing in the atmosphere in the case from the suction port. The internal pressure in the case is controlled by controlling the suction force by the suction force controller based on the internal pressure in the case measured by the internal pressure measure and/or the suction force measured by the suction force measure.

Abstract: A control unit for a powder material compression molding machine including a powder material compressor which compresses a powder material filled between compressing members in an adjusted filled amount by making the compressing members approach to each other at a predetermined interval, so as to mold a molded product, and a pressure detector which detects a powder material compressing pressure by the powder material compressor. The control unit including a weight determiner which determines that the weight of filled powder material is normal, a thickness determiner which determines that the thickness of the molded product is abnormal in the case where the pressure detected by the pressure detector falls out of a first predetermined range when the weight determiner determines normality, and a compression controller which controls the powder material compressor when the thickness determiner determines abnormality.

Abstract: The present invention provides a method for manufacturing a molding with a core by using compression molding means having upper and lower double-structured punches; the method comprising the steps of supplying molding material for the core and molding material for the outer layer respectively, the step of compression-molding the molding material for the core and/or the molding material for the outer layer, and the step of compression-molding the whole molding with a core, wherein: the step of supplying the molding material for the outer layer posterior to the step of supplying the molding material for the core is performed until a tip of the lower center punch finally takes a position protruding from a tip of the lower outer punch; and the step of compression-molding the whole molding with a core is performed with the tips of the lower center punch and the lower outer punch aligned with each other.

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.