A dustproof mechanism for a powder filling machine

CN224427920UActive Publication Date: 2026-06-30GUANGDONG XIANGMAI BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG XIANGMAI BIOTECHNOLOGY CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing powder filling machines suffer from dust pollution during the filling process, leading to cross-contamination of materials and measurement errors. This is particularly problematic in the pharmaceutical and food industries, where hygiene requirements are high, as it affects filling accuracy and product consistency.

Method used

A dustproof mechanism for a powder filling machine was designed. By setting a negative pressure channel and a negative pressure switch assembly on the turntable, the opening and closing of the negative pressure channel is controlled by using a cylinder to push the slide plate up and down, absorbing the overflowing dust. Combined with a pressure sensor and control device, the effective absorption of dust is achieved.

Benefits of technology

It effectively avoids dust spillage, prevents cross-contamination of materials and metering errors, and improves filling accuracy and product hygiene and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of dust prevention devices, specifically a dust prevention mechanism for a powder filling machine. It includes a hopper, a base, and a turntable rotatably mounted on the base. A sliding plate is vertically slidably mounted on the filling area of ​​the turntable. A cylinder is mounted on the base below the sliding plate, and the cylinder pushes the sliding plate up and down. Containers are placed on the sliding plate. A negative pressure switch assembly and a negative pressure channel are provided on the filling area. The opening of the negative pressure channel is located at the top of the turntable and surrounds the periphery of the filling area. The negative pressure switch assembly is connected to the sliding plate. The cylinder pushes the container on the sliding plate to contact the hopper for filling and pulls the negative pressure switch assembly to open the negative pressure channel for absorbing dust. The turntable has several filling areas, each with a through hole. The sliding plate is vertically slidably mounted within the through hole, which can prevent external dust contamination and internal dust overflow.
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Citation Information

Patent Citations

  • CN222117171U