Micro-amount feeding machine capable of realizing dynamic weighing

Abstract

The invention discloses a micro-amount feeding machine capable of realizing dynamic weighing. The micro-amount feeding machine comprises a base, a feeding machine and a driving unit, wherein the feeding machine and the driving unit are respectively arranged at the two ends of the base; the right lower end of the feeding machine is provided with a weighing sensor, and the left lower end of the feeding machine is provided with a protective bracket; the feeding machine is connected with one end of a coupling unit by a balance arm; the balance arm is supported by a knife-shaped pivot arranged on the base; the other end of the coupling unit is connected with the driving unit; and the lower side of the driving unit is provided with a protective bracket arranged on the base, and the upper side of the driving unit is provided with a balancing weight block. The micro-amount feeding machine disclosed by the invention has the beneficial effects that the real-time weighing difficulty of micro-amount feeding is solved, the minimum feeding amount below 1kg / h in weighing can be realized, the difficulty of small tare weight in the micro-feeding is solved and the weighing accuracy of the micro-amount feeding is improved.

Description

technical field [0001] The invention relates to the technical field of automatic measurement, in particular to a micro-feeding system capable of realizing dynamic weighing. Background technique [0002] In the process of industrial production and scientific experiments, the weighing of micro-feeding materials has always been a difficult problem to solve. Among the existing feeding weighing methods, there are mainly the following: [0003] Impulse weighing: German E+H company and Japan Sankyo Co., Ltd. mainly adopt this technology, and many domestic manufacturers have introduced or adopted this technology. The technology responds quickly and is an instantaneous continuous measurement. The minimum measurable flow rate of this method is tens of Kg / h, which is not suitable for the measurement of micro-feeding materials. [0004] Loss-in-weight weighing: This method is mostly used at home and abroad. For large flow measurement, this method has fast measurement and high precisi...

AI Technical Summary

Problems solved by technology

This method measures the volume flow rate of the material, the density of the material is uncertain, and the mass flow rate of the material cannot be determined.

[0006] For micro feeders, none of the existing technologies can solve the problem of accurately weighing its mass flow rate online in real time, making it impossible to achieve micro-accurate feeding in production practice and experiments

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