Drying channel of coating machine

Abstract

The invention provides a drying channel of a coating machine. The drying channel is used for drying a substrate of coated paste and comprises a drying channel body, a transmission device, at least a drying channel tuyere and a hot air fan, wherein the transmission device transmits the substrate to be dried through the drying channel body; the drying channel tuyeres are installed in the drying channel body and are arranged below the substrate along the transmission direction of the substrate; each drying channel tuyere comprises an air outlet and an air inlet; the hot air fan comprises a fan air inlet and a fan air outlet; the fan air outlet is communicated with the air inlet of one drying channel tuyere; the hot air fan conveys hot air to the drying channel tuyeres; and the hot air blown from the air outlets of the drying channel tuyeres is parallel to the transmission direction of the substrate. The drying channel has the following beneficial effects: the air blown from the air outlets of the drying channel tuyeres is parallel to and the same as or opposite to the transmission direction of the substrate; the blown air uniformly passes through the transmitted substrate to avoid nonuniform heating caused by impact, so that the substrate can be dried uniformly from bottom to top, thus improving the yield; and the air faces one direction, thus improving air circulation in the drying channel and avoiding opposite impact of the hot air.

Description

technical field [0001] The invention relates to the fields of operation and transportation, especially the material coating industry, and specifically relates to a drying tunnel of a coating machine. Background technique [0002] Coating machine is a special equipment mainly used for coating production of BOPP sealing adhesive tape. Its production process is generally as follows: firstly, the rolled substrate, such as: paper, cloth, leather, aluminum foil, plastic film, etc., is coated with a layer of glue, paint or ink with specific functions, then dried, and finally rolled. The special high-speed coating head is used in the process, which can effectively reduce the generation of air bubbles, and the coating machine is equipped with a full-speed automatic film splicing mechanism and closed-loop automatic tension control. [0003] Taking lithium batteries as an example, the indispensable process of coating in the production process of lithium batteries directly affects the ...

AI Technical Summary

Problems solved by technology

[0004] The air outlet of the air nozzle 2 of the traditional drying tunnel faces the substrate vertically or obliquely, and the hot air blows directly onto the substrate vertically. After the impact, the wind spreads outwards, and the circulation of the wind is not smooth. Moreover, the temperature at the impact point is high, and the substrate is heated unevenly. , as attached figure 1 In the middle, after the wind is blown out from the air outlet 21, it diverges and flows in all directions, and the hot air blown out by the air nozzles 2 of two adjacent drying tunnels produces a hedge, forming an air hedge zone 7, which affects the overall drying cycle

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