Apparatus for manufacturing tablets

A tablet manufacturing apparatus for manufacturing tablets from a moist powder, said apparatus comprising:

• a hopper containing a supply of the moist powder therein;
• a first table operatively associated with said hopper and including a plurality of groups of filling holes into which the moist powder is successively supplied from said hopper, said first table being mounted for rotation about a first axis, said groups of filling holes being provided in said first table at circumferentially spaced intervals about said first axis;
• a second table being mounted for rotation about a second axis and including a second plurality of groups of mold cavities which are circumferentially spaced from each other about said second axis, said second table being overlaid by at least a part of said first table, one of said groups of mold cavities being coaxially aligned below one of said groups of said filling holes such that said mold cavities of said one of said groups of mold cavities are coaxially aligned below corresponding filling holes of said one of said groups of said filling holes where said part of said first table overlays said second table;
• filling and pressurizing means which include filling pins supported for axial movement into said filling holes along the axis of said filling holes for moving the moist powder from said filling holes into said mold cavities under a pressurized condition where said part of said first table overlays said second table;
• releasing agent coating means for coating a releasing agent on the upper and lower surfaces of the moist powder pressurizingly filled into said mold cavities;
• finish-forming means including upper and lower rods for chamfering the upper and lower surfaces of the moist powder which are coated with said releasing agent, to thereby round off the corners of the mass of the moist powder and to press the moist powder into tablets;
• release means including ejector pins for pressing and releasing said tablets out of said mold cavities;
• and
• drive means for intermittently synchronously rotating said first and second tables about said first axis and said second axis, respectively.

A tablet manufacturing apparatus for manufacturing tablets form a moist powder, said apparatus comprising:

• a hopper containing a supply of the moist powder therein;
• a first table operatively associated with said hopper and including a plurality f groups of filling holes into which groups the moist powder is successively supplied from said hopper, said first table being mounted for rotation about a first axis, said filling holes being provided in said first table at circumferentially spaced intervals about said first axis;
• a second table being mounted for rotation about a second axis and including a plurality of groups of mold cavities which are circumferentially spaced from each other about said second axis, said second table being overlaid by at least a part of said first table such that said mold cavities of said one of said groups of mold cavities are coaxially aligned below corresponding filling holes of said one of said groups of said filling holes where said part of said first table overlays said second table;
• filling and pressurizing means which include filling pins supported for axial movement into said filling holes along the axis of said filling holes for moving the moist powder from said filling holes into said mold cavities under a pressurized condition at the location where said part of said first table overlays said second table;
• finish-forming and pressurizing means which include upper and lower rods for chamfering the upper and lower surfaces, respectively, of the moist powder pressurizingly filled in said mold cavities, to thereby round off the corners of the mass of the moist powder and to press said moist powder into tablets;
• said finish-forming and pressurizing means including film means for providing powder-intercepting films in the form of tape between said upper and lower rods and the upper and lower surfaces of the moist powder during chamfering;
• release means including an ejector-pin operable for releasing said tablets out of said mold cavities, and
• drive means for intermittently synchronously rotating said first and second tables about said first axis and said second axis, respectively.