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The structure and shape of the die of the tablet press

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The structure and shape of the die of the tablet press

The punching die is a tablet press mold for pressing tablets. The working end faces of up and down punching form the surface shape of tablets. The diameter of the middle die is the diameter of tablets.

Die is an important task of the tablet machine components, usually including a pair of die, in the mold, the impact on three parts, rushed up and down the structure similar to that of the punch diameter are equal, the upper and lower diameter of punch and die die in combination, can free sliding up and down, in the die hole in but can not exist leakage clearance of powder.

According to the structure and shape of the die, it can be divided into circular and special-shaped (including polygons and curves). The shape of the end face of the punch is flat, hypotenuse, shallow concave, deep concave and comprehensive shape, flat and hypotenuse punch is used to suppress flat cylindrical tablets, shallow concave is used to suppress double convex tablets, deep concave is mainly used to suppress coated tablets chip, comprehensive shape is mainly used to suppress special-shaped tablets. In order to identify and take the drug easily, the drug name, dose and vertical and horizontal lines can also be engraved on the end face of the die. The appropriate size of the die should be selected to press different doses of tablets.

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