A temperature-controlled barrel for a screw extruder

By employing a spirally wound heating and cooling medium channel and equidistant temperature sensors in the temperature-controlled barrel of a screw extruder, the problems of uneven temperature and slow response in traditional barrels have been solved, achieving precise temperature control and efficient energy utilization, and improving processing quality and system stability.

CN224446805UActive Publication Date: 2026-07-03NANJING JIEYA EXTRUSION EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JIEYA EXTRUSION EQUIP
Filing Date
2025-08-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional screw extruder temperature control barrels suffer from uneven temperature distribution, slow response speed, low energy efficiency, and inability to monitor and adjust in real time, making it difficult to meet the precise temperature control requirements of complex processing technologies.

Method used

A temperature-controlled barrel for a screw extruder is designed, which uses spirally wound heating and cooling medium channels arranged at intervals on the outer side of the inner barrel. Combined with equidistantly distributed temperature sensors and controllers, it can achieve precise control of the barrel's circumferential and axial temperatures. Furthermore, an integrated supply device reduces the medium transmission path to improve response speed and energy utilization efficiency.

Benefits of technology

It achieves rapid response and uniformity of barrel temperature, improves processing accuracy and stability, reduces production costs and energy consumption, and simplifies the structure for easy installation and maintenance.

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Abstract

This utility model relates to the field of screw extruder barrels and discloses a temperature-controlled screw extruder barrel, comprising: an inner barrel, a heating medium supply device, and a cooling medium supply device, wherein the heating medium supply device and the cooling medium supply device are disposed on the outer side of the inner barrel; the outer side of the inner barrel is provided with helically wound heating medium channels and cooling medium channels at intervals, the input end of the heating medium channel is provided with a first input pipe, and the input end of the cooling medium channel is provided with a second input pipe; an outer barrel is disposed outside the inner barrel, a controller is fixed on the outer side of the inner barrel, and temperature sensors are installed on the inner wall of the inner barrel at equal intervals. This utility model achieves precise temperature control through helically spaced heating and cooling channels, and, combined with temperature sensors and a controller, improves response speed and uniformity, simplifies the structure, reduces energy consumption, and solves the problems of lag and unevenness in traditional temperature control.
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