Lose-in-weigh continuous weighing-metering feeding system

Abstract

The invention discloses a lose-in-weigh continuous weighing-metering feeding system. The lose-in-weigh continuous weighing-metering feeding system comprises a raw material bin II, a raw material bin I, a lose-in-weigh single-screw metering feeding machine, a lose-in-weigh double-screw metering feeding machine, a forcible side feeding machine and a lose-in-weigh liquid metering feeding machine, wherein the lose-in-weigh single-screw metering feeding machine comprises a weighing hopper II, a single-screw spherical feeding body, a single-screw feeding barrel and a weighing sensor II; the lose-in-weigh double-screw metering feeding machine comprises a weighing hopper I, a double-screw spherical feeding body, a double-screw feeding barrel and a weighing sensor I; the forcible side feeding machine comprises a side feeding barrel; and the lose-in-weigh liquid metering feeding machine comprises a liquid raw material bin, a weighing hopper III, a liquid metering pump and a weighing sensor III. The feeding system disclosed by the invention is adaptive to meet many weighing-metering feeding machines with different material states, high in shock resistance, and capable of preventing the 'bridging' phenomenon of powder materials, and ensuring the feeding continuity.

Description

Technical field [0001] The invention relates to a loss-in-weight type continuous weighing metering feeding system. Background technique [0002] In the production of polymer materials and the research and development of new polymer materials, various materials of different proportions are accurately and continuously fed into the extruder, which is useful for producing high-quality polymer materials or developing new polymer materials. The success or failure of the game plays a pivotal role. The material state of polymer materials is divided into solid state and liquid state, solid state is divided into powder state, granular state, small block state, and liquid state is divided into oil agent and water agent. Due to the requirements of the processing technology of polymer materials, some solid materials need to be fed with forced thrust, and most liquid materials need to be fed with high pressure spray. [0003] The loss-in-weight continuous weighing metering feeding system is wi...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the existing loss-in-weight continuous weighing and metering feeding system are: the matching is not perfect, and various metering feeders that meet different material states cannot be adapted in one feeding system according to the requirements of various components of raw materials; Users need to provide raw material bins and pneumatic disc valves by themselves; the anti-interference performance is poor, and the weighing hopper is supported by a single or two load cells. Once mechanical vibration interferes, the weighing hopper will shake and seriously affect the measurement accuracy; maintenance or cleaning It is inconvenient to disassemble and install the metering feeder; for powder or short fiber materials, during the feeding process from the raw material bin to the weighing hopper, due to the poor fluidity of the powder materials or short fiber materials, the feeding process will be prolonged or interrupted. , while feeding, the material in the weighing hopper will produce a "bridging" phenomenon

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