Ring segment for a tablet press

Abstract

A rotor for a tablet press including an upper-ram receptacle for the upper rams and a lower-ram guide for the lower rams of the tablet press, as well as a retainer plate having a series of die-bores which are oriented towards the upper and lower rams wherein the retainer plate is composed of at least two ring segments which are adapted to be mounted non-positively and/or positively to the body of the lower-ram guide by means of a fixing device.

The invention claimed is: 
     
       1. A rotor comprising:
 a body, which includes a lower ram guide, the lower ram guide having a plurality of reception bores; 
 an upper ram receptacle, the upper ram receptacle having a plurality of reception bores; 
 a retainer plate, the retainer plate being comprised of at least two ring segments, whrein wherein each ring segment of the retainer plate is releasably pressed against the rotor by a locking wedge; 
 the retainer having a plurality of bores which are aligned with the plurality of reception bores of the upper arm receptacle and the lower ram gide guide. 
 
     
     
       2. The rotor of  claim 1 , wherein the bores of the retainer plate have a contour. 
     
     
       3. The rotor of  claim 1 , wherein each bore of the retainer plate has a predetermined contour. 
     
     
       4. The rotor of  claim 1 , wherein each ring segment is releasably pressed against the body of the rotor. 
     
     
       5. The rotor of  claim 1 , wherein each ring segment is releasably pressed against the upper ram receptacle of the rotor. 
     
     
       6. The rotor of  claim 1 , wherein each ring segment is releasably pressed against the body and the upper ram receptacle of the rotor. 
     
     
       7. The rotor of  claim 1 , wherein each ring segment is releasably pressed against the lower ram guide. 
     
     
       8. The rotor of  claim 1 , wherein the body, lower ram guide and upper ram receptacle are integrally formed. 
     
     
       9. The rotor of  claim 1 , wherein the retainer plate is made of only two ring segments. 
     
     
       10. The rotor of  claim 1 , wherein the retainer plate is made of more than two ring segments. 
     
     
       11. A rotor comprising:
 a body, which includes a lower ram guide, the lower ram guide having a plurality of reception bores; 
 an upper ram receptacle, the upper ram receptacle having a plurality of reception bores; 
 a retainer plate, the retainer plate being comprised of at least two ring segments, wherein each ring segment of the retainer plate is releasably pressed against the rotor by a bolt that abuts against a lower side of the ring segment, the bolt releasably pressing the ring segment against an underside of the body; 
 the retainer plate having a plurality of bores which are aligned with the plurality of reception bores of the upper ram receptacle and the lower ram guide. 
 
     
     
       12. The rotor of  claim 11 , wherein the bores of the retainer plate have a contour. 
     
     
       13. The rotor of  claim 11 , wherein each bore of the retainer plate has a predetermined contour. 
     
     
       14. The rotor of  claim 11 , wherein each ring segment is releasably pressed against the body of the rotor. 
     
     
       15. The rotor of  claim 11 , wherein each ring segment is releasably pressed against the upper ram receptacle of the rotor. 
     
     
       16. The rotor of  claim 11 , wherein each ring segment is releasably pressed against the body and the upper ram receptacle of the rotor. 
     
     
       17. The rotor of  claim 11 , wherein each ring segment is releasably pressed against the lower ram guide. 
     
     
       18. The rotor of  claim 11 , the bolt having a threaded portion, the bolt being seated in a threaded bore by the threaded portion, the threaded bore being defined by a ring, the ring being joined to the rotor. 
     
     
       19. The rotor of  claim 11 , wherein the body, lower ram guide and upper ram receptacle are integrally formed. 
     
     
       20. The rotor of  claim 11 , wherein the retainer plate is made of only two ring segments. 
     
     
       21. A rotor comprising:
 a body, which includes a lower ram guide, the lower ram guide having a plurality of reception bores; 
 an upper ram receptacle, the upper ram receptacle having a plurality of reception bores; 
 a retainer plate, the retainer plate being comprised of at least two ring segments, wherein each ring segment of the retainer plate is releasably pressed against the rotor by a locking wedge; 
 the retainer plate having a plurality of bores which are aligned with the plurality of reception bores of the upper ram receptacle and the lower ram guide. 
 
     
     
       22. A retainer plate for a tablet press, comprising:
 at least two ring segments, each of which is releasably pressable against a rotor of the tablet press by a locking wedge; and   a plurality of bores which are alignable with a plurality of reception bores of an upper ram receptacle of the rotor and a lower ram guide of the rotor.   
     
     
       23. The retainer plate of claim 22, wherein each of the ring segments is releasably pressable against the rotor by a bolt that abuts against a lower side of the ring segment. 
     
     
       24. The retainer plate of claim 22, wherein contours of the bores define a tablet shape for the tablet press. 
     
     
       25. The retainer plate of claim 22, wherein each of the ring segments is releasably pressable against the upper ram receptacle of the rotor. 
     
     
       26. The retainer plate of claim 22, wherein each of the ring segments is releasably pressable against the lower ram guide of the rotor. 
     
     
       27. The retainer plate of claim 22, wherein an inner surface of each of the ring segments has an arcuate shape. 
     
     
       28. The retainer plate of claim 28, wherein an outer surface of each of the ring segments has an arcuate shape. 
     
     
       29. The retainer plate of claim 22, wherein each of the bores is shaped to form a tablet. 
     
     
       30. The retainer plate of claim 22, wherein upper and lower sides of each of the ring segments are plane-parallel. 
     
     
       31. The retainer plate of claim 22, wherein the retainer plate is hard chromium-plated. 
     
     
       32. The retainer plate of claim 22, wherein each of the ring segments is releasably pressable against circumferential and radial surfaces of the rotor. 
     
     
       33. A ring segment for a tablet press, comprising:
 a plurality of bores which are alignable with a plurality of reception bores of an upper ram receptacle of a rotor of the tablet press and a lower ram guide of the rotor;   wherein the ring segment is releasably pressable against the rotor by a locking wedge.   
     
     
       34. The ring segment of claim 33, wherein the ring segment is releasably pressable against the rotor by a bolt that abuts against a lower side of the ring segment. 
     
     
       35. The ring segment of claim 33, wherein contours of the bores define a tablet shape for the tablet press. 
     
     
       36. The ring segment of claim 33, wherein each of the ring segments is releasably pressable against the upper ram receptacle of the rotor. 
     
     
       37. The ring segment of claim 33, wherein each of the ring segments is releasably pressable against the lower ram guide of the rotor. 
     
     
       38. The ring segment of claim 33, wherein an inner surface of each of the ring segments has an arcuate shape. 
     
     
       39. The ring segment of claim 38, wherein an outer surface of each of the ring segments has an arcuate shape. 
     
     
       40. The ring segment of claim 33, wherein each of the bores is shaped to form a tablet. 
     
     
       41. The ring segment of claim 33, wherein upper and lower sides of each of the ring segments are plane-parallel. 
     
     
       42. The ring segment of claim 33, wherein the retainer plate is hard chromium-plated. 
     
     
       43. The ring segment of claim 33, wherein each of the ring segments is releasably pressable against circumferential and radial surfaces of the rotor. 
     
     
       44. A replacement part for a rotor of a tablet press, the rotor having a body that includes a lower ram guide having a plurality of reception bores and an upper ram receptacle having a plurality of reception bores, the replacement part comprising:
 at least one ring segment body, including
 upper and lower surfaces that are plane-parallel, 
 an inner edge surface that is arcuate-shaped and adapted to be releasably pressable against an outer surface of the rotor by a locking wedge, 
 an outer edge surface facing away from the rotor, and 
 a plurality of bores arranged in an arcuate shape between the inner and outer edge surfaces of the ring segment body. 
   
     
     
       45. The replacement part of claim 44, wherein the ring segment body further includes first and second end surfaces that extend radially between the inner and outer edge surfaces of the ring segment body and extend vertically between the upper and lower surfaces of the ring segment body. 
     
     
       46. The replacement part of claim 44, wherein the replacement part includes at least two ring segment bodies. 
     
     
       47. The replacement part of claim 46, wherein each of the ring segment bodies includes first and second end surfaces that extend radially between the inner and outer edge surfaces of the ring segment body and extend vertically between the upper and lower surfaces of the ring segment body. 
     
     
       48. The replacement part of claim 47, wherein the first end surface of a first one of the ring segment bodies is adjacent to, and in contact with, the second end surface of a second one of the ring segment bodies. 
     
     
       49. The replacement part of claim 44, wherein each of the bores is shaped to form a tablet. 
     
     
       50. The replacement part of claim 46, wherein each of the bores is shaped to form a tablet. 
     
     
       51. The replacement part of claim 44, wherein the bores of the ring segment body are configured to align with the reception bores of the lower ram guide and the reception bores of the upper ram receptacle. 
     
     
       52. The replacement part of claim 46, wherein the bores of the ring segment bodies are configured to align with the reception bores of the lower ram guide and the reception bores of the upper ram receptacle. 
     
     
       53. The replacement part of claim 44, wherein the ring segment body is hard chromium-plated. 
     
     
       54. The replacement part of claim 46, wherein the ring segment bodies are hard chromium-plated. 
     
     
       55. The replacement part of claim 44, wherein the outer edge surface of the ring segment body has an arcuate shape. 
     
     
       56. The replacement part of claim 46, wherein the outer edge surface of each of the ring segment bodies has an arcuate shape. 
     
     
       57. The replacement part of claim 44, wherein the ring segment body is releasably pressable against circumferential and radial surfaces of the rotor. 
     
     
       58. The replacement part of claim 44, wherein each of the ring segment bodies is releasably pressable against circumferential and radial surfaces of the rotor. 
     
     
       59. A retainer plate for use with a tablet press of the type having a rotor with an upper ram receptacle and a lower ram guide, the upper ram receptacle having a plurality of reception bores, wherein the improvement comprises:
 the retainer plate is comprised of at least two ring segment, each ring segment having a plurality of bores which are alignable with the plurality of reception bores of the upper ram receptacle, and   wherein each ring segment is releasably pressable against the rotor by a locking wedge.