JPH034384Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a coating device for plate materials, and more specifically, to an improvement of a coating device for plate materials that can automatically perform separate coatings.

[Conventional technology]

Conventionally, when finishing painting architectural boards, for example, when painting two-tone colors or applying waterproof coating to only the necessary parts on the base coated surface, it was necessary to manually paint the parts or mask the unpainted parts. Automatic painting has been practiced, but in both the former and latter cases, there was a problem in that it was very time-consuming to separately paint parts of the board, etc.

In order to solve this problem, the applicant of the present application previously proposed a coating device for plate materials that can automatically apply separate coatings by transporting the plate material back and forth using a belt conveyor and painting at this turning point. Application No. 59-124106; Japanese Patent Publication No. 61-4567
(see publication).

The coating device for board materials proposed earlier has a screen board erected on the top surface of the board material that is being transported back and forth, and paint is sprayed onto this screen board to cause the paint to flow down along the surface. The structure is such that the coating is applied by flowing it down onto the board, and by adjusting the relative position of the upright position of the screen board and the folding point of the lower board, it becomes possible to automatically apply separate coats as desired. It has many advantages.

[Problems with conventional technology]

However, the plate coating equipment proposed above requires a separate compressor to adjust the amount of paint supplied, and since the paint is in contact with a large amount of air, depending on the type of solvent, it may flow down from the surface of the plate. There were problems such as the inability to reuse excess paint, the high cost of equipment for controlling the amount of paint supplied, and restrictions on the reuse of paint.

[Problem to be solved]

In view of the above-mentioned problems, the purpose of this invention is to provide an improved coating device for plate materials that can adjust the amount of paint supplied, reuse excess paint, and provide a stable painted surface. This was done as a.

[Technology to solve problems]

That is, the plate coating apparatus of this invention includes a guide chute that sends out a plate in a flat state, and a reciprocating system that receives the plate discharged from the guide chute and pushes the plate back to the bottom side of the guide chute in a flat state. A transfer device comprising a movable receiving member and a conveyor provided on the lower surface of the guide chute for taking out and transferring the pushed-back plate material;ッA vertically erected paint sink, an overflow box that supplies paint overflowing from the upper edge of the paint sink so that the paint flows down along the side of the paint sink, and an area above the overflow edge of the overflow box. A paint supply pipe is introduced into the overflow box from a position inside the overflow box.

〔Example〕

Next, this invention will be explained using examples.

FIG. 1 is a side view of an embodiment of this invention, and FIG. 2 is a plan view of FIG. 1.

The plate coating apparatus 1 of this invention includes a guide chute 10 that sends out a plate material A such as a wall board or a flat roofing material in a flat state, and a guide chute 10 that receives the plate material A discharged from the guide chute 10 and coats the bottom surface of the guide chute 10. A cylinder that pushes back the plate material A to the side while keeping it flat,
A transfer device 1' consisting of a receiving member 12 that can be reciprocated by a piston device 11, and a conveyor 13 provided on the lower surface of the guide chute 10, which takes out and conveys the pushed back plate material A, and the guide chute 10. The paint B is made to flow down along the paint sink plate 15 and the side surface 15' of the paint sink plate, which are vertically arranged upwardly between the and the receiving member 12.
An overflow box 16 supplies paint overflow from the upper edge of the paint sink plate 15, and paint B is supplied from a position above the overflow edge 16' of the overflow box 16.
It is composed of a paint supply pipe 17 that supplies paint.

In the above embodiment, overflow box 1
A partition plate 16A is provided inside the tank 6, and the supplied paint B passes under the partition plate 16A and flows to the overflow edge 16'.

In the figure, 20 is a pan that receives the paint B that has flowed down from the surface of the plate material A, and 21 is a pump that feeds the paint B to the overflow box 16 via the paint supply pipe 17. It is possible to receive the following information.

Further, reference numeral 22 in the figure is an air knife, which is provided to remove, by spraying, excess paint on the upper surface of the plate material A transferred by the conveyor 13, and is installed as necessary.

Further, in the above embodiment, the guide chute 10
In this case, the end 10A on the side where the plate material A is sent out is trimmed along the rear edge contour _A2 of the plate material A, and as will be described later, the plate material A falls downward from the guide chute 10 in a flat posture. configured to do so.

[Effect]

Next, the operation of the embodiment of this invention will be explained.

First, the paint B is supplied to the overflow box 16 through the paint supply pipe 17, and the paint B is caused to overflow from the overflow edge 16' and flowed along the paint flow plate 15.
flow down.

At this time, since the paint B is supplied from the paint supply pipe 17 introduced from a position above the overflow edge 16' of the overflow box 16, the water head pressure can be used, and the overflow amount can be easily adjusted. Even if there is a fluctuation in the pumping pressure, the effect on the overflow amount can be alleviated.

The paint B flowing out from the overflow edge 16' is
When the paint falls downward from the paint sink plate 15, it becomes a uniform film.

In this state, the plate material A is fed from the guide chute 10 toward the receiving member 12.

The plate A advances across the film of paint B until it is received by the receiving member 12, and then the guide chute 1
0 while maintaining a horizontal position, and is then pushed back toward the conveyor 13 by the receiving member 12, and thereafter is transported by this conveyor 13 to the next process.

At this time, the coating film of paint B is constantly falling, and the plate material A that crosses this coating film is pushed back by the receiving member 12 at a certain position, so that the plate material A is at the turning point as shown in FIG. The parts are painted separately with P as the boundary, and the painted parts are coated twice.

On the other hand, the paint that falls when the board A does not pass,
Excess paint flowing down from the top of the plate material A is collected in the lower pan 20 and returned to the overflow box 16 via the paint supply pipe 17.

At this time, since the paint B has simply flowed downward from the overflow box 16, there is little deterioration of the paint solvent due to air, and there is no problem even if the paint B is returned to the overflow box 16 again.

Furthermore, since the coating film is regulated by the surface shape of the paint flow board 15, for example, if the shape of the lower side of the paint flow board 15 is an edge along the color separation line, the color separation boundary can be arbitrarily shaped. I can do it.

〔effect〕

As explained above about this invention, it is possible to easily apply different coats to the plate materials A on the assembly line, and it is also possible to freely adjust the amount of paint supplied from large quantities to small quantities, allowing for coating according to the product. It has various practical effects, such as being able to easily make the thickness of the coating film uniform, and also being able to reuse the falling paint, thereby eliminating waste of paint and being economical.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of this invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a surface view of a plate A painted according to an embodiment of this invention.

Claims (1)

[Scope of utility model registration request] A guide chute for sending out the plate material in a flat state, and receiving the plate material discharged from the guide chute, and
a receiving member capable of reciprocating movement to push back the plate material in a flat state toward the lower surface side of the guide chute;
a conveyor provided on the lower surface of the guide chute for taking out and transferring the pushed-back board material; and a paint flow plate erected substantially vertically above the guide chute and the receiving member. and an overflow box that supplies paint overflowing from the upper edge of the paint sink so that the paint flows down along the side surface of the paint sink, and an overflow box that is introduced into the overflow box from a position above the overflow edge of the overflow box. A coating device for plate materials, characterized in that it is composed of a paint supply pipe.