Coater and its oven unit

Abstract

The invention provides a coating machine and a drying oven unit thereof. The drying oven unit comprises a whole frame with an upper layer and a lower layer, a plenum chamber, a circulation draught fan and an air return chamber. The plenum chamber, the circulation draught fan and the air return chamber are arranged on the side face of the whole frame. Hot air is blown out of an upper air chamber and a lower air chamber, dries base materials and then enters the air return chamber through air return openings. One part of the air entering the air return chamber is discharged through an exhaust outlet; the other part of the air entering the air return chamber enters a circulation pipeline after being mixed with fresh air entering the air return chamber through a fresh air opening, and is heated into hot air through a heating system; the hot air is driven by the circulation draught fan to enter the plenum chamber and then enters the upper air chamber and the lower air chamber through air inlets; and circulating air is formed when the process is repeatedly conducted. The speed, temperature and pressure uniformity of a whole circulating air field are greatly improved, no air field dead corners exist, the vertex phenomenon is avoided, the circulating air is smoother, the base materials are evenly dried, the heat energy loss is reduced, cost is saved, and the production efficiency is improved.

Description

technical field [0001] The present invention relates to coater equipment, and more particularly to coaters and oven units therefor. Background technique [0002] Coating machines are widely used in many new industries, such as optical fields, electronics fields, aerospace fields, and protective film adhesive tape fields. Coat the rolled substrate with a layer of glue, paint or ink with specific functions, and dry it After rewinding. [0003] see Figure 1 to Figure 3 , the oven unit 1' of the existing coating machine, the frame 2' and the box body 3' are separately arranged on the structure, the static pressure box 8' is arranged in the middle part of the frame 2', the upper air duct 6' and the lower air duct The air inlet of 7' provides heated air, and the heated air is scattered from the middle of the upper air duct 6' and the lower air duct 7' to both ends respectively, and then blows out to the substrate for drying, and the cooled air flows from the upper air duct 6' a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coating machine and its oven unit, which solves the problem that the existing coating machine oven unit has a certain dead angle in the circulating air field, the air flow is not smooth, and it is easy to cause uneven drying and excessive heat loss. Waste, and the processing parts are more, the problem of inconvenient assembly

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