Bottom-mounted middle die assembly for tablet press

Abstract

A lower-mounting type middle die assembly for a tablet machine comprises a rotating table, a middle die and a plurality of supporting plates. A middle die mounting hole in the rotating table is a through hole, and a counter bore is formed in the lower end of the through hole. A flange is arranged at the lower end of the middle die. Each supporting plate is in an arc shape, threaded holes are formed in the outward convex sides of the supporting plates, through holes are formed in the inward concave sides of the supporting plates, and the through holes are away from the edges of the inward concave sides of the supporting plates by a certain radial spacing. The supporting plates are sequentially connected end to end to form a circular ring shape. A threaded blind hole is formed in the lower end face of a middle boss of the rotating table, and meanwhile an arc-shaped groove which horizontally extends is formed in the root portion of the inner side of the middle boss. The supporting plates are horizontally and fixedly arranged on the rotating table, and the inward concave sides of all the supporting plates are embedded in the arc-shaped groove in the root portion of the inner side of the middle boss of the rotating table. By the aid of the flange at the lower end of the middle die together with the counter bore in the rotating table and the supporting plates, the firm limiting in the ascending direction and the descending direction can be formed, the middle die moving problem caused by too large friction force is solved, the problems that the middle die is likely to loosen and is disengaged from the rotating table are solved, and the production accident rate is lowered.

Description

technical field [0001] The invention relates to equipment used in the production of tablet medicine, belongs to the technical field of medicine forming equipment, and in particular relates to a middle mold assembly used in a rotary tablet press. Background technique [0002] like figure 1 As shown, it is a structural sectional view when the middle mold of the existing tablet press is installed on the turntable. It can be seen from the figure that the ring-shaped middle mold 4 is fixed from top to bottom in the middle mold installation hole (set on the middle boss of the turntable 1) on the turntable 1, the middle mold installation hole is a stepped through hole, and The aperture of the upper part is larger than that of the lower part. The lower end surface of the middle mold 4 is supported by the shoulder of the stepped through hole, the side wall of the middle mold 4 is provided with a groove, and the radial threaded through hole is arranged corresponding to the middle mo...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a bottom-mounted middle mold assembly for a tablet press, which can firmly limit the upward movement and downward movement of the middle mold in the vertical direction, and will not be affected by the viscosity of the powder to cause failure. It solves the problem that the middle mold is easy to loosen and detached from the turntable, and reduces the production accident rate caused by it

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