Air duct structure for POE film transverse stretching equipment oven

By adopting an upper and lower air duct structure in the oven of the POE film transverse stretching equipment, the problems of uneven air velocity and inaccurate temperature control were solved, achieving uniform air velocity and temperature stability during the film stretching process, promoting the volatilization of organic solvents, and improving product quality and production safety.

CN224856214UActive Publication Date: 2026-10-16JIANGSU HUAQIANG PRINTING & DYEING ENGINE CO LTD
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Patent Information

Application Number
CN202522532350.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-10-16
Estimated Expiration
2035-11-28

AI Technical Summary

Technical Problem

The traditional POE film transverse stretching equipment oven has uneven airflow distribution and inaccurate temperature control, which leads to film deformation and unstable performance. In addition, the organic solvents do not evaporate well, affecting product purity and production safety.

Method used

It adopts an upper and lower air duct structure, which are respectively set as a transparent static pressure box and an independent temperature zone. The air velocity is evenly distributed and the temperature is precisely regulated through air holes and regulating air valves. It also provides an organic solvent evaporation channel to ensure the stability of the airflow field.

Benefits of technology

It achieves uniform wind speed and controllable temperature on the membrane surface, improves the film stretching quality and production stability, and enhances product qualification rate and environmental safety.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to POE film production equipment technical field discloses a kind of air duct structure for POE film transverse stretching equipment oven, including upper air duct and lower air duct, respectively arranged in POE film upper and lower. Upper air duct is the structure of permeable static pressure tank, is formed by several square tubes, sealing tank, square tube inner partition plate divides it into upper air chamber and lower air chamber, the ventilation area difference of air hole and air outlet forms static pressure, ensure that wind speed is uniform, and the gap between adjacent square tube can discharge organic solvent waste gas;Lower air duct is divided into multiple independent temperature zones, and each temperature zone is equipped with adjusting air valve to realize air volume, temperature independent adjustment. The utility model can realize film surface wind speed uniform distribution, transverse width temperature accurate adjustable, promote organic solvent volatilization, improve POE film stretching quality and production stability, suitable for the oven system of POE film transverse stretching equipment.
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