Energy-saving overhead drying air duct device for decorative paper printing machine

By designing structures such as mixing chambers, rotating columns, and blades in the decorative paper printing machine, hot and cold air are fully integrated before entering the drying oven, solving the problem of uneven temperature caused by insufficient integration of hot and cold air, and improving the uniformity of decorative paper drying and the stability of product quality.

CN224465482UActive Publication Date: 2026-07-07
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-09-15
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The lack of sufficient mixing of hot and cold air in the existing drying duct system leads to uneven temperature inside the drying oven, resulting in inconsistent heating of decorative paper during drying, with some areas experiencing overheating or underheating, thus reducing product quality stability.

Method used

An energy-saving ceiling-mounted drying duct device for a decorative paper printing machine was designed. Through structures such as a mixing chamber, rotating column, blades, baffle plate, and air collection port, hot and cold air are fully mixed before entering the drying oven. The hot air generated in the combustion chamber is mixed with the cold air to form a turbulent airflow, ensuring uniform air temperature.

Benefits of technology

It significantly improves the uniformity of air temperature entering the drying oven, ensuring uniform heating during the drying process of decorative paper, reducing local over- or under-drying, improving product quality stability, and reducing the scrap rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to energy -conserving type ceiling drying air duct device of decorative paper printing machine, including the combustion chamber and the right -hand end of combustion chamber is connected with the mixed air storehouse, the front end of mixed air storehouse is opened with the cold air mouth, the inside connection of cold air mouth has the filter plate, the inside left side of mixed air storehouse is rotatably connected with the rotating column, the outside end of rotating column is connected with a plurality of blades, the inside right side of mixed air storehouse is connected with three wind baffle of staggered distribution, the inside right side of mixed air storehouse is connected with the baffle, the inside of baffle is opened with the gas inlet, the hot air of combustion chamber generates blows the blade and drives the rotating column to rotate, the air cylinder guides through the wind baffle, the cold air of cold air mouth is introduced, drives hot air and cold air to mix between a plurality of filter plates, leads out through the gas inlet, the utility model discloses through set up mixed air storehouse, rotating column etc. parts, make hot and cold air fully blend before entering the oven, improve air temperature uniformity, guarantee decorative paper even heating, reduce local drying problem, improve product quality stability, reduce the scrap rate.
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