SU1766536A1 - Device for painting wooden product parts - Google Patents

Abstract

The invention can be used in the furniture and woodworking industries to improve the quality of coating and expand technological capabilities. SUMMARY OF THE INVENTION: The inlet and outlet openings of the painting chamber for passage of a part are provided with quick-release nozzles with holes. The hole profile corresponds to the part profile. Coloring of the part occurs due to the capture of paint with air sucked into the gap between the part and the nozzle. The ink supply pipe is adapted to adjust the distance between it and the part, which allows the number of painted sides to be varied. 1 hp f-ly, 5 ill.

Description

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The invention can be used in the furniture and woodworking industries,

A device for finishing wood moldings is known, comprising a painting chamber with two coaxial openings for entering and exiting a part, connected by a nozzle with a paint container, a fan with pipes to create a vacuum in the painting chamber and an overpressure in the paint container, an adjustment device pressure 1.

In this device, during operation, the level of liquid paint above the top plane of the part, that is, the part is dipped into the paint, as a result of which proters from bubbles of gas entering the paint are formed on the painted surface, which makes it impossible to control the thickness of the coating. the details.

The aim of the invention is to improve the quality of the coating and the expansion of technological capabilities.

This is due to the fact that the level of liquid paint in this device is below the lower surface of the part, and the dyeing is carried out as a result of paint being drawn in by air sucked through the opening between the part and the inlet (outlet) opening. To ensure such a mode of operation, the size of the hole should be well controlled, which is achieved by using removable nozzles on openings, the holes in which correspond to the profile of the part, and the possibility of moving the spray booth in the vertical direction.

Since, in contrast to the known device, the gas circulation system in this device is not closed, to ensure the specified mode of operation

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A valve for controlling the pressure in the paint container and a pressure relief valve in the paint container are provided when the vacuum in the paint booth is below a certain level.

To prevent air from entering the paint and sucking it, the device is equipped with a float.

To be able to paint the part only on three sides, the branch pipe connecting the painting chamber with the capacity of the paint is made with the possibility of adjusting the distance between it and the part.

Figure 1 shows the device, a general view; figure 2 - profiles of removable nozzles; on fig.Z - the scheme of coloring; figure 4 - the same, when painting parts from four sides; figure 5 - the same, when painting parts from three sides.

The device includes a coloring chamber 2 mounted on the base 1 with an inlet 3 and an outlet 4, which are provided with quick-detachable nozzles 5, b with holes 7 whose profile corresponds to the profile of the part 8. The nozzles 5, 6 are mounted on the spray booth 2 by means of quick-detachable locks 9.

Under the painting chamber 2 there is a container for paint 10c with a vertical template 11 for supplying paint material under pressure to the painting chamber.

The fan 12 by means of pipelines 15 creates a vacuum in the painting chamber 2 and excessive pressure in the tank for paint 10. Air does not pressure the paint material directly, but through the float 14 with a hole with which it is freely mounted on the vertical pipe 11.

The vertical nozzle is equipped with a mechanism 15 for adjusting its height. This mechanism can be performed, for example, in the form of a two-armed lever with a fork interacting with a telescopic body 16 of the vertical nozzle 11.

The ink tank 10 has a regulator valve 17 and a pressure relief valve 18 in its cap.

The container with the paint 10, the vertical pipe 11 and other elements of the device are enclosed in the housing 19, in which the painting chamber 2 is also attached.

The housing 19 is capable of vertical movement along the guides 20 of the base 1 with the help of the device 21. On the base 1, a component feed mechanism is mounted, which is made as

an adjustable feed-rate automatic feeder mounted on a stand and a ruler 22, which has a lateral offset (not

shown).

The device works as follows.

In accordance with the profile of the painted parts install nozzles 5, 6.

0 The device 21 and the movement of the clamping ruler 22 achieve a uniform gap between the part to be painted and the walls of the holes 7 of the nozzles.

5 Turn on the fan 12, which creates a vacuum in the spray booth 10. However, due to the fact that there is no workpiece in the openings 7 of the nozzles 5, 6, the size of the created dilution is insufficient and the automatic valve 18 remains open and is connected There is a paint tank with atmosphere. Supply of paint material in the pipe 11 does not occur.

5 The part to be painted is supplied to the spray booth 2, the valve 18 is closed. Air (see fig.Z) creates excess pressure in the tank with paint, and paint material through the vertical pipe 11

0 enters the painting zone in such a way that its upper level is located below the lower surface of the part. The air sucked into the painting chamber captures the paint and moves along the side surfaces of the part into the conical part of the painting chamber, where as the cone expands, the drops of paint slow down and move down to the upper surface of the part.

0 Adjusting valve 17 sets the required vacuum and pressure in the system.

If the distance between the nozzle 11 and the part is sufficiently large, then only individual drops of paint will fall on its lower 5th surface, which makes it possible to paint the product not from four, but only on three sides, for which the upper telescopic part of the nozzle 16

0 down.

Claims (2)

Claim 1. Device for painting wood moldings, including a painting chamber with two coaxial openings 5 for inlet and outlet of the part, connected by a nozzle with a paint container, a fan with pipes, a pressure control device, characterized in that, in order to improve the quality of painting, the coaxial openings are provided with removable nozzles with holes corresponding to the profile of the part; the painting chamber is designed to move in the vertical direction, the pressure control device is designed as a control valve and valve 8 9 15 FIG. 2 pressure relief, paint tank supplied with a float. 2. The device pop. H. distinguishing with the fact that, in order to expand technological capabilities, the nozzle is made with the ability to adjust the distance between it and the part. 5.6 6 Yyyy Fig.Z