JP3226432B2 - How to paint the plate opening - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of coating a wooden plate or the like at the tip of a plate using a flow coater.

[0002]

2. Description of the Related Art Conventionally, there are various coating methods. Among them, a coating method using a flow coater is a method in which a coating material is dropped from a slit of a head in a curtain shape, and an object to be coated is passed thereunder at a constant speed. In this method, the paint flowed down is circulated and used, so that there are advantages such as no paint loss, a high conveyor speed, high paint speed, no paint mist scattering, and a sanitary working environment. The coating method using such a flow coater is in principle exclusively used for flat coating, that is, for coating only the upper surface of the object to be coated.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a flow coater that can be applied at high speed without paint loss, can be coated at high speed, and does not scatter paint mist. It is another object of the present invention to provide a coating method that can uniformly apply the coating.

[0004]

In order to solve the above-mentioned problems, the present invention provides a method of coating a wooden piece at the tip of a plate-like body by passing a plate-like body, which is an object to be coated, placed on a conveyor through a paint curtain. In a coating method using a flow coater for coating the upper surface of the object to be coated, the front edge of the plate-shaped body is passed through the paint curtain at an angle of 45 ° to the upper surface of the plate-shaped body and the front edge of the front edge. Before the painted material dries, the conveyor is reversed and the plate is passed through the paint curtain from the rear edge of the paint to paint the upper surface of the plate and the rear edge of the plate. Is characterized.

[0005] Another method of coating the tip of a plate-shaped object according to the present invention is a flow coater for coating an upper surface of the object to be coated by passing a plate-shaped object, which is an object to be coated, placed on a conveyor through a paint curtain. In the coating method according to the above, the front edge of the plate-shaped body is passed through the paint curtain at a 45 ° angle to paint the upper surface of the plate-shaped body and the front edge of the wood, and then the painted paint is Before drying, the plate is moved 180 ° horizontally.
It is characterized in that the upper surface of the plate-shaped body and the rear (opposite side) of the plate are painted by inverting the plate and passing the plate-like body through the paint curtain from the rear (opposite) of the plate.

[0006]

When the front edge of the plate is passed through the paint curtain at an angle of 45 ° to the paint curtain, the upper surface of the plate and the front edge of the plate are painted. The wood is not painted. Next, before the painted paint is dried, the conveyor is reversed or the plate is turned horizontally, and the plate is passed through the back (opposite side) of the wood edge to the paint curtain and painted. Then, the upper surface of the plate-like body and the rear side (opposite side) of the wood edge are painted. And if the paint on the back side (opposite side) is also painted before the painted paint dries, the paint in the over-applied part will not blend in and form an uneven surface, and it will be uniform as if painted at once Painted.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a principle view of a flow coater, FIG. 2 is a schematic perspective view showing an outline of a coating method according to the present invention, and FIGS. 3 and 4 are schematic plan views showing an outline of a coating method of the present invention. In FIG. 1, a paint curtain 4 is dropped from a slit 3 of a head 2 between left and right conveyors 1a and 1b. The object 5 to be coated is placed under the paint curtain 4 by the conveyors 1a and 1b.
Through. At this time, the paint curtain 4 adheres to the upper surface 6 of the object 5 to be painted. The paint that has not adhered to the work 5 flows down into the tank 7 below, is again supplied to the head 2 by the pump P, and is circulated.

When only the upper surface of the plate-shaped object to be coated is to be painted, the plate-shaped body is placed on a conveyor so that the front edge of the plate-shaped body is parallel to the paint curtain. However, in the present invention, when placing the plate-shaped body 5 which is an object to be coated on the conveyor 1a, the front edge 8 of the plate-shaped body 5
a and 8b are placed so as to enter the paint curtain 4 at an angle of 45 °. In this state, the conveyors 1a, 1
By operating b, the plate-shaped body 5 is passed through the curtain 4 of paint. Then, the upper surface 6 of the plate-like body 5 and the front-side edge 8a,
8b is applied with paint (FIG. 2 (a), FIG. 3)
(A)). The reason why the front edge of the plate-shaped body is passed through the paint curtain at an angle of 45 ° is to uniformly coat both front edge 8a and 8b.

Next, before the painted material is dried, the conveyors 1b and 1a are reversed, and the wooden cut surfaces 8c and 8d on the rear side of the plate 5 are passed through the paint curtain 4 at an angle of 45 °. And the upper surface 6 of the plate-like body 5 and the rear edge 8
2c and 8d are applied (FIGS. 2 (b) and 3 (b)), thus completing the coating of the upper surface 6 of the plate-like body 5 and the four edge faces 8a to 8d. The front side crevice surfaces 8c and 8d are also painted before drying, once they are dried, at the boundary between the upper surface and the rear side crate, or the boundary between the front side crate and the rear side crate. The overcoated portion is formed, and uneven coating is formed on the overcoated portion, so that uniform coating cannot be performed. This is because the paint can be applied evenly in the same manner as the paint.

In order to paint the front-side cut edges 8a and 8b of the plate-like body 5 and then paint the rear-side cut edges 8c and 8d,
The plate 5 is turned 180 ° in the horizontal direction, and the plate 5 is passed from the opposite (rear) wooden edge 8c, 8d at a 45 ° angle to the next paint curtain 4. (FIG. 4).

If the flow rate of the paint curtain such as the viscosity of the paint is kept constant, the horizontality of the conveyor is maintained, and the conveyor speed is kept constant, a product having a uniform and constant painted surface can be obtained. Can be mass-produced.

[0012]

According to the present invention, since it has the above-mentioned structure, a plate-like body can be obtained by using a flow coater while taking advantage of the advantages of no paint loss, high-speed coating, and no paint mist scattering. Can be painted evenly on the wood. In addition, the front edge of the plate-shaped body is used as a paint curtain.
As it was painted at a 45 ° angle,
Can be painted evenly on the front side of the two trees. And then paint
Before the paint is dried, reverse the conveyor, or
The plate is turned 180 degrees in the horizontal direction, and the top of the plate is
Since the rear edge of the wood was painted, the paint on
Same as painted at once without forming uneven surface
It can be painted evenly.

[Brief description of the drawings]

FIG. 1 is a principle diagram of a flow coater.

FIG. 2 is a schematic perspective view showing an outline of a coating method according to the present invention.

FIG. 3 is a schematic plan view showing the outline of the coating method of the present invention.

FIG. 4 is a schematic plan view schematically showing another coating method of the present invention.

[Explanation of symbols]

 1a, 1b, 1c: Conveyor 4: Paint curtain 5: Plate 6: Upper surface 8a , 8b... Front side kerchief 8c, 8d... Rear side (opposite side) cleaver

Claims (2)

(57) [Claims] 1. A coating method using a flow coater for coating a plate-shaped object, which is an object to be coated, placed on a conveyor through a paint curtain to coat an upper surface of the object to be coated. The upper surface of the plate and the front edge of the wood are painted by passing through the paint curtain at an angle of 45 °, and then, before the paint is dried, the conveyor is reversed and the plate is moved to the rear. A method of coating a plate-like body with a flow coater, wherein the upper surface of the plate-like body and the rear side of the plate-like body are painted through a paint curtain from the surface of the plate. 2. A coating method using a flow coater for coating an upper surface of an object to be coated by passing a plate as an object to be coated placed on a conveyor through a paint curtain. Pass the paint at a 45 ° angle to the paint curtain to paint the upper surface of the plate and the front edge of the wood, and then flip the plate horizontally 180 ° before the painted paint dries A plate by a flow coater, characterized in that the plate-shaped body is passed through a curtain of paint from the back (opposite side) of the lip to paint the upper surface of the plate and the back side (opposite side) of the lip. How to paint the mouth of the body.