Medium-density fiber plate powder spray coating proofing furnace

Abstract

The invention relates to a medium-density fiber plate powder spray coating proofing furnace, which consists of a furnace body 1, a suspension type conveyer 3 and infrared ray plain pipes 4, wherein the suspension type conveyer 3 adopts the chain type transmission, a chain is converted to a position above the furnace body 1 after going out from the furnace body 1, the transmission speed of the chain in the furnace body 1 is 0.2 to 4m / minute, more than one refraction plate in inclined arrangement in the advancing direction of the suspension type conveyer 3 is respectively arranged at the back parts of the infrared ray plain pipes 4, and the included angle between the two refraction plates 5 is 45 DEG C to 135 DEG C. When the medium-density fiber plate powder spray coating proofing furnace with the structure provided by the invention is adopted, a chain type transmission proofing plate is adopted, so the area of the occupied ground is small, infrared ray lamp tubes are adopted for heating, the powder dissolution time can be greatly shorted, the synchronism with the production line can be reached, the mode is similar to that of the production line, and the same effect as the production line can be obtained.

Description

technical field [0001] The invention relates to the improvement of a proofing furnace for powder coating of medium density fiberboard. Background technique [0002] Medium-density fiberboard (MDF for short) is made by processing selected wood raw materials into fibers, adding urea-formaldehyde resin and other additives, and making it through a special process with a density of about 0.5-0.88g / cm 3 A kind of man-made board. The powder spraying of MDF is to spray the panel material that people need on the surface of MDF in powder state and then heat it to make the powder melt, flow to level and then solidify, so that people can get the wood grain and tone they need. During the powder coating process of MDF, the heating process determines the final effect of powder coating. The procedure of proofing is that manufacturers and distributors need to compare and confirm the color, smoothness, flatness and touch of the powder produced by the manufacturer after hot-melt leveling an...

AI Technical Summary

Problems solved by technology

However, for MDF itself, the heat conduction is slow, and the powder cannot be melted in the case of uneven heating, which requires a long heating time for the MDF to be heated before the powder can be melted, so that the powder spraying effect of MDF cannot be compared with the spraying effect of the production line. unanimous

In addition, the hot air monomer fixed sampling furnace body currently used in the powder factory can only sample a single piece at a time, and the size of the sample is also limited to the size of the furnace body, so the size of the sample is limited to small samples, and cannot be continuous Proofing, and the different powder melting methods used affect the synchronization of proofing, making it difficult to compare samples after proofing

The MDF produced by the production line is directly heated to melt the powder, while the powder spraying factory uses a proofing furnace heated by hot air, so the effect of the proofed MDF on the color, smoothness, flatness and touch is quite different from that required by the production line. As a result, the manufacturer cannot confirm the formula of the spray powder

If the curing furnace of the production line is used for proofing, because the furnace body of the curing furnace covers a large area, and the furnace body sprays the surface and sides of the MDF, it will cause a large amount of energy consumption for proofing, increase the cost of proofing, and waste proofing resources

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