An automatic switching device for silo sight glasses

The automatic switching device for the sight glass in the hopper uses a rotary table and a drive motor to quickly switch the sight glass tubes, solving the problem of poor material feeding caused by dust accumulation and improving production efficiency and product quality.

CN224449541UActive Publication Date: 2026-07-03CHANGLE HENGSHEN SYNTHETIC FIBER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGLE HENGSHEN SYNTHETIC FIBER
Filing Date
2025-07-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing material hopper sight glass opening is not cleaned in time due to dust accumulation, which causes the material to flow unevenly, affecting production efficiency and product quality, and requires frequent machine shutdowns for cleaning.

Method used

Design an automatic switching device for silo sight glasses. The device achieves rapid switching of sight glasses tubes through a rotating disc and a drive motor. The controller controls the rotation of the drive motor and rotating disc to connect the conveying pipe to one sight glass tube, while the other sight glass tube is left idle for cleaning, thus avoiding downtime.

Benefits of technology

It enables rapid switching and cleaning of sight glass tubes, improves production efficiency, simplifies operation procedures, avoids downtime for cleaning, and enhances production continuity.

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    Figure CN224449541U_ABST
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Abstract

This utility model provides an automatic sight glass switching device for a silo, comprising a conveying pipe, a sight glass switching device, and a controller. The conveying pipe is located at the bottom of the silo and has a material valve. The sight glass switching device includes a rotating disk, a drive motor, and two sight glass tubes. Each sight glass tube has a window on its side wall, and the window is fitted with transparent glass. The rotating disk has two through holes, and the two sight glass tubes are vertically fixed to the rotating disk and communicate with the through holes respectively. The drive motor is located below the rotating disk and drives the rotating disk to rotate. Either sight glass tube can be connected to the bottom of the conveying pipe. The controller is connected to the drive motor. This utility model is a simple, easy-to-operate, and efficient automatic sight glass switching device for a silo that eliminates the need for machine downtime for cleaning.
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