Blackboard face board spraying system

Abstract

The invention discloses a blackboard panel spraying system, which comprises a cleaning device, an air-drying device and a spraying device arranged in sequence; while the cleaning device sprays acid, it also sprinkles sand on the surface of the steel plate; the air-drying device is provided with a scraping curtain and a scraper; the roller group of the spraying device includes ordinary rollers and magnetic rollers arranged at intervals, and a baffle is provided at the spray head. The invention has the characteristics of various cleaning methods, good air-drying effect and spraying effect.

Description

technical field [0001] The invention relates to a blackboard panel spraying system. Background technique [0002] In essence, blackboards have existed since thousands of years ago. In the 19th century, people used black lacquer to coat the surface of the wooden board, including the wooden board not to be eroded, and thus the blackboard in its current form appeared. Over the past two hundred years, the appearance of the blackboard has not changed much, but its production materials are different from the past, from the early wood to cement, and later developed to terrazzo, color-coated steel and composite materials. Nowadays, most of the materials used in the panels of blackboards in the narrow sense are steel plates, and the processing procedures mainly include cleaning, air drying, spraying, heating and cooling. [0003] Existing blackboard panel spraying system mainly comprises cleaning device, air-drying device and spraying device. Among them, the cleaning device mainly...

AI Technical Summary

Problems solved by technology

Due to the large amount of residual acid, it takes a long time for the fan to dry. At the same time, due to the evaporation of a large amount of acid, it will also have an adverse effect on the health of equipment and personnel in the site.

On the other hand, acid will also remain on the lower surface of the board, but the existing air-drying device has not been treated accordingly, resulting in the residual acid will corrode the subsequent conveying rollers and other equipment

In addition, the spraying device lacks a stabilizing mechanism for the steel plate. Since the steel plate is relatively thin, it is easy to shake during transportation. In addition, the force is applied during spraying, and the shaking is even more severe, resulting in poor spraying effect.

[0004] Therefore, the existing blackboard panel spraying system has the problems of single cleaning method, poor air-drying effect and poor spraying effect

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