A plastic raw material mixing device capable of automatically adjusting stirring speed

By employing a multi-layered staggered spiral blade and an automatic speed control system driven by a torque sensor in the mixing device, combined with an ultrasonic transducer and a W-shaped double cone structure, the problems of uneven mixing and low efficiency in existing mixing devices have been solved, achieving automatic adjustment of mixing speed and improvement of mixing uniformity.

CN224489624UActive Publication Date: 2026-07-14DONGGUAN JINGWEI PLASTIC MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINGWEI PLASTIC MATERIAL CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing mixing devices have a fixed stirring speed, making it difficult to adjust in real time according to the moisture content and particle size of the raw materials. This results in uneven mixing and low efficiency, and there is a lack of an integrated raw material condition monitoring and feedback mechanism.

Method used

The mixing blades adopt a multi-layer staggered spiral blade structure, combined with a torque sensor and frequency converter to achieve automatic adjustment of the mixing speed. It is equipped with an infrared moisture sensor and particle size detector for real-time monitoring, and combines an ultrasonic transducer and a W-shaped double cone structure to improve the mixing uniformity. Closed-loop temperature control and pneumatic discharge valve ensure operational safety.

Benefits of technology

It enables dynamic adjustment of stirring speed based on the state of raw materials, improving mixing efficiency and uniformity, reducing agglomeration, ensuring suitable temperature for raw materials, and enhancing operational convenience and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224489624U_ABST
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Abstract

This utility model discloses a plastic raw material mixing device with automatically adjustable stirring speed, including a mixing tank, a drive motor, a stirring shaft, stirring blades mounted on the stirring shaft, and an automatic speed control module. The stirring blades adopt a multi-layer staggered spiral structure, and each stirring blade includes a main spiral blade and an auxiliary dispersing disk. The main spiral blade is welded to the lower part of the stirring shaft. The automatic speed control module monitors the torque, moisture content, and particle size of the raw materials in real time, dynamically adjusting the stirring speed to adapt to different raw material states and improve mixing efficiency. The multi-layer staggered spiral blades and the auxiliary dispersing disk with conical through holes work together, combined with ultrasonic transducers to enhance dispersion, significantly improving mixing uniformity and reducing raw material agglomeration. The W-shaped double-cone structure combined with a pneumatic discharge valve facilitates material discharge, and the closed-loop temperature-controlled electric heating plate ensures a suitable temperature for the raw materials. The polytetrafluoroethylene layer extends the service life.
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