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A method for improving the surface coating quality of wooden door electrostatic spraying

An electrostatic spraying and surface coating technology, which is applied to the device, coating, spraying device and other directions for coating liquid on the surface, which can solve the problems of reducing the adhesion of the paint film, uneven thickness of the paint film, and unstable paint rate. , to achieve the effect of low cost, improved paint film uniformity and convenient operation

Active Publication Date: 2019-09-17
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for improving the surface coating quality of wooden door electrostatic spraying. The present invention can solve the problem of uneven paint film thickness, unstable paint rate, secondary spraying or topcoat spraying of wooden doors in conventional electrostatic spraying. It is not easy to paint and other problems, and at the same time, the invention does not need any humidification treatment on the surface of the wooden door, so it will not reduce the adhesion of the paint film and improve the quality of electrostatic spraying

Method used

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  • A method for improving the surface coating quality of wooden door electrostatic spraying
  • A method for improving the surface coating quality of wooden door electrostatic spraying
  • A method for improving the surface coating quality of wooden door electrostatic spraying

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Effect test

Embodiment 1

[0035] like figure 1 As shown, the method for improving the surface coating quality of wooden door electrostatic spraying of the present invention includes: 1 wooden door conveying grounding metal guide rail, 2 metal hooks, 3 metal rods, 4 grounding steel plates, 5 wooden doors, 6 electrostatic spray guns;

[0036] Before spraying, the grounding steel plate 4 welded with metal rods 3 on both sides is hung on the wooden door conveying metal guide rail 1 through the metal hook 2 . Insert the metal rod 3 in the mounting holes reserved on both sides of the wooden door 5, and hang on the wooden door conveying metal guide rail 1 through the metal hook 2. The gap between the grounding steel plate 4 and the wooden door 5 is not more than 10mm;

[0037] Three electrostatic spray guns 6 arranged horizontally at equal intervals are arranged on one side of the grounded steel plate 4 (note: the number of electrostatic spray guns on one side of the grounded steel plate is generally between...

Embodiment 2

[0041] like figure 2 As shown, the method for improving the surface coating quality of wooden door electrostatic spraying of the present invention comprises: 1. Wooden door conveys metal rail (grounding), 2. Metal hook, 3. Metal bar, 4. Grounding steel plate, 5. Wooden door, 6. Electrostatic spray gun, 7. base;

[0042] Before spraying, fix the grounding steel plate 4 directly in front of the electrostatic spray gun 6, and realize grounding through the base 7;

[0043] Insert the metal rod 3 in the mounting holes reserved on both sides of the wooden door 5, and hang it on the wooden door conveying metal guide rail 1 through the metal hook 2;

[0044] Three electrostatic spray guns 6 arranged horizontally at equal intervals are arranged on one side of the grounded steel plate 4 (note: the number of electrostatic spray guns on one side of the grounded steel plate is generally between 1 and 3, and there are 3 in this figure). And the joint action of the control system, synchro...

Embodiment 3

[0048] The electrostatic spray gun is placed vertically on the ground and sprays downward in the vertical direction. The large surface of the wooden door to be sprayed is perpendicular to the spraying direction.

[0049]With this spray gun arrangement, the grounded steel plate can be fed and moved synchronously with the wooden door, so that the wooden door is between the electrostatic spray gun and the grounded steel plate during the electrostatic spraying process; the grounded steel plate can also be fixed directly below the electrostatic spray gun, and when the wooden door is fed When moving to the bottom of the electrostatic spray gun, the wooden door is just between the grounded steel plate and the electrostatic spray gun.

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Abstract

The invention discloses a method for improving the quality of an electrostatic surface coating of a wooden door. The method for improving the quality of the electrostatic surface coating of the wooden door comprises the steps that the wooden door is prepared; and spraying is conducted, specifically, a grounding conductive board is adopted to be placed on the back side of the wooden door during spraying, and in the electrostatic spraying process, the wooden door is located between an electrostatic spraying gun and the grounding conductive board. By adoption of the method for improving the quality of the electrostatic surface coating of the wooden door, the problems that in the conventional electrostatic spraying process of the wooden door, the thickness of a coating is nonuniform, the painting rate is instable, and painting is difficult during secondary spraying or finish paint spraying can be solved; and meanwhile, no humidification treatment needs to be conducted on the surface of the wooden door, so that the adhesive force of a paint film is not reduced, and the electrostatic spraying quality is improved.

Description

technical field [0001] The invention belongs to the technical field of wooden door preparation methods, and in particular relates to a method for improving the surface coating quality of wooden doors electrostatically sprayed. Background technique [0002] my country is a big country in the manufacture of wooden doors. In 2015, the output of wooden doors in my country has exceeded 50 million sets, and the output value has exceeded 120 billion yuan. Both output and output value rank first in the world. In the process of the wooden door industry developing in the direction of resource conservation and environmental friendliness, wooden door painting is a very important link. [0003] Electrostatic spraying technology for wood products is favored by wood product companies for its high paint utilization rate, low environmental pollution, high degree of automation, good spraying quality and high efficiency. Spraying has been the first to be applied, and they mostly use Ω-shaped ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/06B05B5/025B05B13/02
Inventor 李博张占宽
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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