A double screw extruder for toner production

By designing a twin-screw extruder with detachable barrel and screw sections, the problems of inconvenient cleaning operations and screw replacement in existing technologies have been solved, achieving efficient mixing and product uniformity in toner production.

CN224391841UActive Publication Date: 2026-06-23SUZHOU HENGJIU IMAGING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HENGJIU IMAGING TECH CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing twin-screw extruders are not well-suited for toner production, especially due to the inconvenience of cleaning and screw replacement, which affects the uniformity of toner particles.

Method used

A twin-screw extruder consisting of multiple detachable barrel sections and screw sections was designed. The barrel sections are divided into a feeding zone, a shearing zone, and a discharge zone, each of which can be operated independently. The screw sections are detachable and replaceable, and are equipped with heaters, exhaust channels, and vacuum pumps to achieve temperature control and uniform mixing.

Benefits of technology

It enables convenient cleaning operations and screw replacement, improves the process stability and product uniformity of toner production, and ensures the uniformity of material mixing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double screw extruder for toner production, including hollow material cylinder and the pair of screw of being located in the inside of material cylinder, the material cylinder adopts and is detachably connected from left to right with a plurality of material cylinder section in proper order, and is equipped with heater respectively on the outer peripheral wall of each material cylinder section, each material cylinder section is equipped with the built -in heat exchange channel respectively, and the built -in heat exchange channel of each material cylinder section is connected with the water inlet branch pipe and the water outlet branch pipe respectively, each water inlet branch pipe is connected to the water inlet main pipe respectively, and is equipped with control valve respectively on each water inlet branch pipe, each water outlet branch pipe is connected to the water outlet main pipe respectively, and the water inlet main pipe, water outlet main pipe are connected to circulating water tank respectively, the screw adopts and is detachably connected from left to right with three screw sections in proper order.
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