JPH1110036A - Manufacture of planar material and its producing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and stably supply liquid paint by controlling a paint injecting quantity from an injecting nozzle by means of the supply quantity of a syringe pump. SOLUTION: Liquid paint to the paint injecting nozzle 9 is executed by using the syringe pump 11, packing paint to a variable storing part 10, rotating a motor 6 by reverse rotation, that is, by the rotary number being proper to CW after that and injecting the paint of the variable storing part 10 to the paint injecting nozzle 9 while moving an inner cylinder 2 in the direction of an arrow (b). In this case, the rotary number of CW in the motor 6 is optionally changed so that the paint injecting quantity is controlled. When the rotary number is small, the paint injecting quantity from the paint injecting nozzle 9 is reduced and a paint result becomes light. When the rotary number is large, the paint result becomes dark. Therefore, the rotary number of the motor 6 is minutely controlled so that light and dark painting can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a plate-like material having a pattern on its surface, which has been painted on the plate-like material using a plurality of paint spray nozzles.

[0002]

2. Description of the Related Art Various kinds of coatings are applied to building materials used for outer wall materials and inner wall materials of buildings in order to enhance commercial value such as design and weather resistance. When applying various types of coating, the amount of paint ejected from the paint ejection nozzle is controlled by a pump or the like.

[0003]

Heretofore, a gear pump or the like has been used as this pump, but it has problems such as clogging of the paint and rapid deterioration of the gear. On the other hand, as a pump system for overcoming this problem, a membrane pump as shown in Japanese Utility Model Laid-Open No. 9-41 is effective, but this membrane pump requires complicated management of replacement liquid and control of liquid supply. There is such a problem. The present invention overcomes these problems, and provides a method and an apparatus for manufacturing a plate-shaped material for manufacturing a plate-shaped material having a pattern on its surface using a pump capable of easily and stably feeding a paint. The purpose is to:

[0004]

In order to achieve the above object, the present invention employs the following constitution. That is, (1) a plurality of paint ejection nozzles or plate-like members are moved to spray paint from the plurality of paint ejection nozzles onto the plate-like material while controlling the amount of paint ejection, and a plate having a pattern on the surface. A method of manufacturing a plate-like material, wherein the amount of paint ejected from the ejection nozzle is controlled by the amount of delivery of a syringe pump. (2) In the manufacturing method of the above (1), the volume of the syringe filled with the paint of the syringe pump is 1.5 times or less the maximum ejection amount of one ejection nozzle for painting the plate-shaped material. A method for manufacturing a plate-like material, wherein a paint is filled in the syringe pump for each plate-like material.

(3) In the manufacturing method of the above (1), the volume of the syringe filled with the paint of the syringe pump is 1.5 times the maximum ejection amount of one ejection nozzle for painting the set number of plate-like materials. A method for manufacturing a plate-shaped material, wherein the volume is as follows, and the paint is filled in the syringe pump for a set number of times, and the paint is continuously discharged for the set number of times.

(4) The method for manufacturing a plate-like material according to any one of the above (1) to (3), wherein the plate-like material is an architectural board or a fabric.

(5) The method of any one of (1) to (4) above, wherein the paint jetting nozzle is an air spray nozzle, an airless spray nozzle, or a combination thereof. Method.

(6) A plurality of paint ejection nozzles or plate-like materials are moved to spray paint from the plurality of paint ejection nozzles onto the plate-like material while controlling the amount of paint ejection, thereby forming a pattern on the surface. An apparatus for manufacturing a plate-shaped material, further comprising a syringe pump for controlling an amount of paint ejected from the ejection nozzle.

(7) A building board painted by the manufacturing method or the manufacturing apparatus according to any one of the above (1) to (6).

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a plurality of paint jetting nozzles and a plate-like material are relatively moved by a conveying means such as a conveyor, and either one of the paint jetting nozzle or the plate-like material is moved. Or both may be moved.

Preferably, the paint spray nozzle is an air spray nozzle, an airless spray nozzle, or a combination thereof. However, the present invention is not limited to these nozzles, and may be any paint ejection nozzle.

Preferably, the paint jet nozzle is an air spray nozzle, an airless spray nozzle, or a combination thereof. However, the present invention is not limited to these nozzles, and may be any paint ejection nozzle.

As the air spray nozzle, for example, a nozzle having a double structure, in which a paint is passed through an inner tube and air for atomization is passed through an outer tube, or the like can be used. With such a structure, the particle size of the atomized droplets can be changed by changing the supply pressure of the air for atomization, so that a paint with higher design quality can be obtained.

Further, as an airless spray nozzle,
For example, a nozzle having a rectangular structure can be used. Such a structure has the advantage that paint clogging is less likely to occur because the corners are at right angles compared to the elliptical shape.

As a combination of an air spray nozzle and an airless spray nozzle, for example, at least two or more spray nozzles are arranged in a plurality in a row at intervals in the transport direction, and the first row is an airless spray nozzle. It is preferable to use a combination such as an air spray nozzle.

The injection nozzle used in the present invention may have a structure in which the mounting position is fixed, but each of them can move up and down, left and right, back and forth independently or in conjunction with each other, or It may be configured to swing in the direction.

The volume of the syringe of the syringe pump is 1.5 times or less the maximum ejection amount of one ejection nozzle for coating the plate material, and it is preferable to fill each plate material with paint. This is because if the paint is kept in the syringe for a long time, sedimentation and separation may occur, which may hinder the painting. That's why.

When the sedimentation and separation of the paint does not occur or hardly occurs, the syringe volume of the syringe pump is set to 1.5 times the maximum ejection amount of one ejection nozzle for the set number of plate-like materials.
It is preferable that the volume of the syringe is twice or less and the volume of the syringe can be changed depending on the set number of plate-like materials that can be continuously discharged.

The material of the syringe is preferably glass, Teflon, metal or the like. When the paint is hard to handle such as curability, it may be a disposable type syringe such as plastic. In short, it is important that the liquid can be filled / discharged without leakage, and a syringe of any material may be used as long as it satisfies this requirement.

The plate-like material of the present invention is a building material such as a plate-like material having irregularities on its surface, such as an outer wall material, an inner wall material, an outer layer material, and an interior material made of wood, stone, metal, cement, ceramic and the like. Is preferred, but non-rigid fabrics, films,
The present invention can also be applied to general industrial materials such as side and top surfaces of an automobile container.

Next, an embodiment of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a schematic diagram showing one embodiment of a syringe pump applicable to the present invention, and FIG. 2 is a schematic diagram showing another embodiment of a syringe pump.

This syringe pump 1 applied to the present invention
1 is an outer cylinder 1 made of a material such as glass or metal;
Inner cylinder 2 made of a material such as Teflon, and inner cylinder 2
And a driving unit for driving the inner cylinder shaft 3 in the direction of arrow a or b comprises a motor 6, a screw shaft 5 and a screw bearing 4, and the inner cylinder shaft 3 And this screw bearing 4 are connected so that the inner cylinder shaft 3 is driven.

Reference numeral 8 denotes a paint tank, and 9 denotes a paint ejection nozzle. Between the paint tank 8 and the paint ejection nozzle 9, paint does not flow backward from the paint ejection nozzle 9 to the paint tank 8. Are provided with two check valves 7. Instead of the two check valves 7, a three-way valve 7 'shown in FIG. 2 may be used. In this case, when the inner cylinder 2 moves in the direction of the arrow a, the paint flows in the direction of c, and when the inner cylinder 2 moves in the direction of the arrow b, the paint flows in the direction of d. Switch valve 7 '.

In FIG. 1, the motor 6 is, for example, a CW
When the screw bearing 4 is rotated in the direction of arrow b, the screw bearing 4 is rotated in the direction of arrow CCW.
Set to move in the direction of
Is rotated by CCW at an appropriate rotational speed, and the inner cylinder 2
The paint is sent from the paint tank 8 while being moved in the direction of, and is filled in the variable stagnation section 10. The amount to be filled is preferably about 1.5 times or less the amount ejected to one sheet material.

The paint is supplied to the paint jet nozzle 9 after the paint is filled into the above-mentioned variable stagnation section 10 and then the motor 6 is fed.
By rotating the inner cylinder 2 in the direction of arrow b while discharging the paint in the variable stagnation section 10 to the paint ejection nozzle while rotating the inner cylinder 2 in the direction of arrow b. In this case, by arbitrarily changing the rotation speed of the CW of the motor 6, it is possible to control the amount of paint sprayed. When the number of revolutions is low, the amount of paint ejected from the paint ejection nozzle 9 decreases, and the coating result becomes light. Conversely, when the number of revolutions is high, the painting result becomes thick. Therefore, the motor 6
By finely controlling the number of revolutions of the, it becomes possible to apply light and shade coating.

FIG. 3 shows an embodiment of a coating apparatus using the syringe pump 11. A nozzle array 12 composed of a plurality of paint ejection nozzles 9 and a plurality of syringe pumps 11
Pump array 13, paint tank 8, and controller 14 for controlling paint discharge amount and discharge timing
And a paint pattern generator 15.

In the embodiment shown in FIG. 3, the nozzle array 12 is installed so that the plurality of paint jetting nozzles 9 are arranged in a direction intersecting the conveying direction of the conveyor 16 and the plate-like material 1 is provided.
7 is conveyed by a conveyor 16 in the direction of arrow e. A sensor (not shown) detects that the plate-like material 17 has approached the nozzle array 12, and based on the detection signal, the controller 14 fills each syringe pump of the pump array 13 with paint according to the pattern from the coating pattern 14. / Dispense command.

The diameter of the outer cylinder 1 and the inner cylinder 2 of the syringe pump 11 is determined by the length of the plate 17 in the direction of conveyance. Since the total amount of the jetting amount increases, the diameters of the outer cylinder 1 and the inner cylinder 2 are increased to increase the maximum volume of the variable stagnation section 10, and conversely, when the length in the transport direction is short, the total amount is small. , Outer cylinder 1,
The diameter of the inner cylinder 3 can be small.

Of course, the method of increasing or decreasing the maximum volume of the variable stagnation section 10 may be not only by changing the diameters of the outer cylinder 1 and the inner cylinder 2 but also by changing the maximum movement distance of FIGS.

For example, if the maximum discharge amount from one paint ejection nozzle 9 is 10 cc on the conveyed plate 17, the maximum volume of the variable stagnation section 10 is 15 cc, which is 1.5 times the maximum discharge amount. The diameter of the outer cylinder 1 and the inner cylinder 2 or the distance between a and b in FIG. According to how to determine the maximum volume of the variable stagnation section 10, the variable stagnation section 10
Need to be filled with paint. Therefore, the variable retention section 1
In the case of a coating material which requires only a short residence time of the coating material at 0 and easily separates and settles, it is preferable because separation and sedimentation can be avoided.

As long as the paint does not easily separate and settle, there is no problem even if the paint is retained in the variable retaining section 10 for a long time. Therefore, the following method may be used.

For example, if the set number of plate-like bodies to be continuously coated is 100, and the maximum amount discharged from one paint jetting nozzle 9 per sheet is 10 cc, the maximum volume of the variable retention section 10 is 10 × 100 × 1.5 = 1500cc is set. In this way, it is possible to save time and labor for filling the paint in the time between the conveyed plate and the next conveyed plate.

If the length of the plate 17 in the transport direction varies, it is necessary to change the diameters of the outer cylinder 1 and the inner cylinder 2 desirably frequently. In this case, a plurality of configurations of the outer cylinder 1, the inner cylinder 2, and the inner cylinder shaft 3 having different diameters may be prepared, and the connection to the screw bearing 4 may be automatically switched appropriately.

As one syringe pump 11 cannot supply paint continuously, it is necessary to provide two syringe pumps 11 side by side as shown in FIG. What is necessary is just to alternately switch the pump switching valve 18 so that one syringe pump fills the paint while the other syringe pump discharges the paint.

[0036]

According to the present invention described above, the paint can be supplied stably and easily without causing problems such as the rapid deterioration of the pump, the alternative liquid supply and the complicated control as in the prior art. Can be liquid. Therefore, highly reliable coating becomes possible.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a syringe pump applicable to the present invention.

FIG. 2 is a schematic view showing another embodiment of the syringe pump.

FIG. 3 is a schematic view showing one embodiment of a coating apparatus using a syringe pump.

FIG. 4 is a schematic view showing still another embodiment of the syringe pump.

[Explanation of symbols]

 1: outer cylinder 2: inner cylinder 3: inner cylinder shaft 4: screw bearing 5: screw shaft 6: motor 7: check valve 7 ': three-way valve 8: paint tank 9: paint spray nozzle 10: variable retention section 11 : Syringe pump 12: Nozzle array 13: Pump array 14: Controller 15: Paint pattern generator 16: Conveyor 17: Plate material

Claims (7)

[Claims] 1. A plate having a pattern on its surface by moving a plurality of paint ejection nozzles or plate-like materials and spraying paint from said plurality of paint ejection nozzles onto said plate-like material while controlling the amount of paint ejection. A method of manufacturing a plate-like material, wherein the amount of paint ejected from the ejection nozzle is controlled by the amount of delivery of a syringe pump. 2. The manufacturing method according to claim 1, wherein a volume of the syringe filled with the paint of the syringe pump is 1.5 times or less of a maximum ejection amount of one ejection nozzle for painting the plate-shaped material. A method for manufacturing a plate-shaped material, wherein a paint is filled in the syringe pump for each plate-shaped material. 3. The manufacturing method according to claim 1, wherein the volume of the syringe filled with the paint of the syringe pump is 1.1 of the maximum ejection amount of one ejection nozzle for painting the set number of plate-like materials.
A method of producing a plate-shaped material, wherein the volume of the plate-shaped material is five times or less, and a predetermined number of the paints are filled in the syringe pump and the predetermined number of the paints are continuously discharged. 4. The method according to claim 1, wherein the plate is a building board or a fabric. 5. The method according to claim 1, wherein the paint jetting nozzle is an air spray nozzle, an airless spray nozzle, or a combination thereof. 6. A plate having a pattern on its surface by moving a plurality of paint ejection nozzles or plate-like members to spray paint from said plurality of paint ejection nozzles onto said plate-like material while controlling the amount of paint ejection. An apparatus for manufacturing a plate-shaped material, comprising a syringe pump for controlling a paint ejection amount from the ejection nozzle. 7. A building board coated by the manufacturing method or the manufacturing apparatus according to claim 1.