Oily glue coating back surface hot roller preheating coating mechanism

By setting a hot roller between the coating unit and the drying oven to preheat the back of the substrate, the problem of limited drying capacity of traditional ovens is solved, and the coating is fully dried and the production efficiency is improved.

CN224542184UActive Publication Date: 2026-07-24WUXI TIANNIU INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202521816686.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-07-24
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

Traditional ovens have limited drying capacity for oil-based adhesive coatings, resulting in incomplete solvent release from the coating and easy formation of bubbles, which affects coating quality and production efficiency.

Method used

Multiple hot rollers are installed between the coating unit and the drying chamber. The substrate is preheated by contacting the hot rollers with the back side of the substrate. The coating is preheated by conducting heat, which avoids surface drying and bubbling, and increases the air velocity and temperature of the drying chamber.

Benefits of technology

It improves drying efficiency, avoids surface drying and bubbling of the coating, and enhances production efficiency and product quality.

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Abstract

The utility model discloses an oily glue coating back surface hot roller preheating coating mechanism, which is characterized in that a base material is output from a base material unwinding mechanism, is coated by a coating mechanism, is dried by a drying box, and is collected by a finished product winding mechanism; a plurality of hot rollers are arranged between the coating mechanism and the drying box at intervals, and after the base material is output from the coating mechanism, the back face of the base material is wound around the hot rollers to be preheated and conveyed to the drying box. A plurality of hot rollers are designed between the coating mechanism and the drying box, the back surface of a coating base material is contacted with the surfaces of the hot rollers, and heat is conducted and penetrates through the base material to preheat a coating; the coating is preheated from inside to outside, so that the phenomena of surface dryness and bubbles of the adhesive layer are avoided; the air speed and the temperature of the drying box at the front section can be improved, the drying efficiency is obviously improved, the working efficiency of the equipment is further improved, and the product quality is guaranteed.
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