A multi-stage continuous drying device for paper sleeve production

By employing a coordinated design of components such as a limiting frame and a circulating pump in the paper tube drying device, a closed drying space and heat circulation system are formed, solving the problems of heat loss and paper tube accumulation and jamming, and achieving a highly efficient paper tube drying process.

CN224455308UActive Publication Date: 2026-07-03HANGZHOU JINFENG PAPER PIPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU JINFENG PAPER PIPE CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing paper tube drying equipment suffers from severe heat loss and is prone to paper tube accumulation and jamming.

Method used

The system employs a combination of components such as a limiting frame, heating element, conveying element, and circulating pump to form a closed drying space and heat circulation system. The top opening is sealed by a top cover, and the circulating pump extracts and recycles hot air. The unloading motor and conveying motor control the conveying speed and position of the paper tube to prevent accumulation.

Benefits of technology

It effectively reduces heat loss, prevents paper tube accumulation and material jamming, and improves drying efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a multi-stage continuous drying device for paper sleeve production, relating to the field of paper sleeve production technology. The multi-stage continuous drying device for paper sleeve production includes a limiting frame, above which is a drying mechanism for drying paper sleeves. The drying mechanism includes a heating component, comprising a heating tube fixedly installed inside the limiting frame, an electric heating plate fixedly installed inside the heating tube, and a guide shroud fixedly installed at the front end of the heating tube. A circulating pump, an air inlet pipe, a distribution pipe, and the limiting shroud form a heat circulation system. The circulating pump stably draws hot air that has undergone one drying cycle within the limiting frame through the air inlet pipe fitted with the limiting shroud, and then transports this hot air to the inside of the hopper through the distribution pipe to preheat the paper sleeves awaiting unloading in the hopper. This allows the hot air, which might otherwise be directly lost, to be reused, significantly reducing heat waste.
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