A letterpress printing drying device

By using a honeycomb aluminum rectifier and air volume regulating valve to distribute the air duct in the letterpress printing drying device, and by using an electric actuator to drive the oscillating blades to form an 'S-shaped' sweeping air path, the problems of ink splatter and uneven drying are solved, thus improving printing quality.

CN224311451UActive Publication Date: 2026-06-02JINHU COUNTY MINGLU IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHU COUNTY MINGLU IND & TRADE CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing letterpress printing drying equipment is prone to ink splattering and uneven airflow distribution when hot air is blown directly, resulting in uneven ink drying.

Method used

The drying area is divided into independent air ducts by using a honeycomb aluminum rectifier and an air volume regulating valve. Local air volume is adjusted by branch air ducts and air volume regulating valves. At the same time, the swing blades driven by electric actuators form an 'S'-shaped sweeping air path to avoid fixed-point airflow impact.

Benefits of technology

It effectively prevents ink splatter, ensures the clarity of printed pattern edges, and achieves uniform hot air coverage, improving the clarity and integrity of printed materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of letterpress printing, and in particular to a letterpress printing drying device, including a printing machine body. A mounting box is welded to the top of the printing machine body, and a flow-diverting component is provided on the top wall of the mounting box. Oscillating blade components are provided on both sides of the mounting box. This utility model divides the drying area into independent air ducts using three sets of partitions. With the addition of branch air ducts and airflow regulating valves, local airflow can be finely adjusted for different printing areas. Reducing the airflow at the edges of the printed pattern effectively prevents ink from splashing due to excessive airflow impact, avoiding blurred edges or ink stains. An electric actuator drives a connecting column, causing a rack to slide back and forth. Through gear and shaft transmission, the oscillating blades achieve an "S-shaped" sweeping airflow. This path breaks the traditional fixed-point airflow impact mode, allowing hot air to dynamically cover the printing surface, avoiding ink accumulation or uneven drying caused by excessive local airflow pressure.
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