Subpackage valve used for controlling powder subpackage quality

Abstract

The invention relates to a subpackage valve capable of controlling the powder weight in high precision. The subpackage valve is formed by connecting an upper connection valve seat, a lower connection valve seat, a valve clack, an outer valve core, a main seal ring, an inner valve core, an inner valve core rotating shaft support frame, an outer valve core driving support, a clamp component, a pneumatic actuator and a pneumatic motor, wherein the clamp component is connected with the upper connection valve seat and the lower connection valve seat; and the pneumatic actuator and the pneumatic motor drive the outer valve core to rotate. According to the subpackage valve, the inner valve core and the outer valve core of a valve body are independently controlled by the pneumatic motor and the pneumatic actuator respectively; no powder material accidentally leaks; the rotation orientation of the outer valve core is easily controlled, so that the subpackage precision is favorably improved; the rotation orientation of the inner valve core is easily controlled, the inner valve core is driven by the pneumatic motor, the inner valve core can rotate for multiple turns, the subpackage precision is favorably improved, and the work efficiency of a system is improved; the metering difference of the inner valve core and the outer valve core is small, and the subpackage precision can be obviously improved by the number of turns of rotation of the inner valve core, so that the work efficiency is improved.

Description

technical field [0001] The invention belongs to the field of mechanical valve devices, and in particular relates to a sub-packaging valve for controlling the weight of powder. . Background technique [0002] According to reports, with the earlier age of onset of the population and the diversification of disease types and development, more and more antitumor drugs, hormone drugs, antipsychotic drugs, and biotechnology drugs are being developed and gradually put into actual production. middle. Therefore, the matched isolator is widely used in actual production. Anti-tumor drugs, hormone drugs, biotechnology drugs and other highly active drugs have been identified as high-risk production operations by domestic and foreign experts due to their serious hazards in the production and operation of drugs. In view of this, isolators are equipped in the production process of these highly active drugs in order to protect the drugs, prevent drug leakage and cross-contamination; protec...

AI Technical Summary

Problems solved by technology

The solid powder dispensing valve widely used in the market at present, the main valve and the auxiliary valve core are driven by a pneumatic driver, and there are still the following defects: there are only two stations, and the dispensing accuracy is not high; at the same time, the main valve plate is only Two pieces, it is not easy to control the rotation direction, which affects the accuracy of dispensing; the working position of the auxiliary valve core is not easy to control, and it is easy to produce abnormal powder leakage, which affects the accuracy of dispensing; the measurement difference between the inner and outer valve cores is too large, which is not conducive to improving the measurement accuracy and many more

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