Powder coating device for wooden workpiece, powder coating system and powder coating method

Abstract

The invention provides a wood workpiece powder coating device, a powder coating system and a powder coating method. The device comprises a first roller conveyor used for horizontally conveying wood workpieces, a plurality of grounding electrodes, a spraying cavity, powder supply equipment and a controller. The first roller conveyor comprises a conveying frame, rollers arranged on the conveying frame in parallel, and a roller driving mechanism, and gaskets are arranged on the rollers at intervals. The multiple grounding electrodes are arranged between the rollers at intervals. The spraying cavity is located above the first roller conveyor, and the upper portion of the interior of the spraying cavity is provided with spraying equipment. The powder supply equipment is used for providing spraying powder for the spraying equipment. The controller is connected with the grounding electrodes and the spraying equipment so as to control grounding of the grounding electrodes and the spraying operation of the spraying equipment.

Description

technical field [0001] The invention relates to furniture surface treatment technology, in particular to a powder coating device, powder coating system and powder coating method for wooden workpieces used in furniture. Background technique [0002] At present, a considerable part of wooden furniture is painted with paint, but with the increasing pressure of environmental protection, furniture manufacturers have received great restrictions on the use of paint, because the paint contains harmful substances that are harmful to human health. According to the requirements of the Ministry of Environmental Protection in October 2017, by the end of 2020, the total amount of paint used by all furniture manufacturers should be reduced by 60% of the amount of paint used for the entire furniture. [0003] In recent years, with the improvement of people's health awareness, they have a higher awareness of the volatiles in the use of spray-painted furniture, and realize that the long-term ...

AI Technical Summary

Problems solved by technology

The traditional way of hanging and conveying the powder coating line of wooden furniture is to imitate the general metal sheet, but because the furniture wood is a poor conductor, the problems caused by it are also more prominent, mainly focused on: (1) Fan problem

In order to ensure that there are as few holes as possible on the B side of the furniture board, all of them are hung in the form of a single-point metal hook. This will cause several problems: a) Because the metal hook is well grounded, it will be powdered first, causing the metal hook to be damaged. Poor powdering on the position close to the board surface

(2) Curing problem: After the traditional hanging form of single-point or double-point hanging on the board surface, due to the shape of the workpiece, the center of gravity and the hook are not in the same line, causing the board surface to be skewed after hanging, and during the transportation process The workpiece will swing

This distance is difficult to adjust randomly in production, which will cause two problems: a) If it is too far away, the curing will not be complete

b) If it is too close, the powder is easy to overcure, the surface of the board is poorly formed, and there is a risk of damage to the lamp tube

[0006] The above problems have caused various restrictions on the dusting of wooden furniture workpieces, and the production pass rate is very low, which is the main reason why the dusting of wooden furniture cannot be widely promoted at present.

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