JPH07289979A - Method for drawing large-scale wall painting - Google Patents

Abstract

PURPOSE:To speedy and accurately carry out the drawing on a large-sized wall face by a method wherein after a picture on the wall face is prepd. by computor processing and it is converted to the right angle coordinate and color data to each coordinate, the position of a coating gun is converted to rectangular coordinates and the color of the data is coated to make a picture. CONSTITUTION:A rail 1 for laterally moving is hanged on the upper edge part on one wall face of a building and the main body 3 of a coating apparatus is hanged freely laterally movably along this rail for laterally moving through a plurality of laterally moving wheels 4. In addition, on the main body 3, a motor 5 for driving laterally moving wheels 4 and a motor 7 for making an arm 6 revolve are provided. Furthermore, a guide sheave 8 is provided on the arm 6 and a wire 11 is wound on this. On the other hand, the wire 11 is wound up on the sheave 10 elevated and lowered by means of a motor 9 provided on the coating apparatus main body 3. Then, the shaded portion B in the revolution radius of the arm 6 is coated by means of the coating gun part 12 hanged on the wire 11. In this instance, the position of the coating gun part 12 is converted into rectangular coordinates and the color of the data is coated in accordance with this position to make a drawing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for drawing a large-scale wall surface on a wall surface of a large-scale building.

[0002]

2. Description of the Related Art In recent years, designs on the walls of large-scale buildings,
There is a request to draw for advertising and other purposes. If the scale was not too large, it was possible to attach photos, posters, etc., which were produced separately, or to use an XY plotter type coating machine (inkjet type, roll-up type shutter can be applied).

However, on the wall surface of a large-scale building, the shape is different for each skeleton, and if it is attempted to be constructed accurately,
Due to problems such as large scale equipment and high cost, the construction itself is difficult and depends on human power.

[0004]

When drawing on a large-scale wall surface by human power, it is necessary to finish while confirming it at a distant position, and it is necessary for a skilled person to take a long time.

It is an object of the present invention to provide a large-scale wall surface drawing method capable of accurately drawing in a short period of time.

[0006]

According to the present invention, a picture for a wall surface is created by computer processing, converted into rectangular coordinates to obtain color data for each coordinate, and the position of the painting gun is three-dimensionally determined. It is characterized in that it is obtained by a position measuring device, converted into rectangular coordinates, and the color of the data is painted according to the position of the painting gun portion to draw.

Further, the coating gun portion is characterized in that it is hung on a hanging wire that can traverse, rotate, and ascend and descend relative to the wall surface.

Further, it is characterized in that the coating is carried out with a shade of a single color or three primary color dots.

[0009]

In the method according to the present invention, the drawing is performed by painting the color for each rectangular coordinate of the wall surface obtained by the computer processing according to each rectangular coordinate for the wall surface of the coating gun portion.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an apparatus embodying the present invention. A traverse rail 1 is attached to the upper edges of the wall surfaces a to d of the building A. On the traverse rail 1, a main body 3 of the coating apparatus, generally designated by reference numeral 2, is suspended movably by a plurality of traverse wheels 4. A traverse wheel drive motor 5 for driving the traverse wheels 4 is provided on the upper left side of the main body 3, and an arm 6 is pivotally attached to the lower central portion. An arm turning motor 7 for turning the arm 6 is provided, and the guide sheaves 8 shown in FIG. It has been turned. A suspension wire lifting motor 9 is provided on the upper right side of the main body 3, and one end of the suspension wire 11 is wound around a sheave 10 driven by the motor 9. A coating gun section 12 is suspended from the lower end of the wire 11.

Therefore, the hatched portion B can be painted by turning the arm 6 while the length of the hanging wire 11 is constant.
The painting gun unit 12 and the motors 5, 7, and 9 are connected to a computer (not shown). In addition, the code | symbol D in a figure is a three-dimensional position measuring device.

Next, the drawing mode will be described mainly with reference to FIG.

First, a computer designs a picture on the wall surfaces a to d (step S1), and the wall surfaces a to d are designed.
Color data at the Cartesian coordinates i, j (FIG. 5) are prepared as shown in the table of FIG. 7 (step S2).

In FIG. 7, i and j indicate the x and y coordinates of FIG. 5, and R (red), G (green) and B (blue) are shown in%. The right column indicates whether or not the coating is completed, and is written in step S7 described later.

At the time of drawing, the current position of the coating gun section 12 is measured in real time by the three-dimensional position measuring device D (step S3), and the positions x, y, z on the wall surfaces a to d of the coating gun section 12 (FIG. 6). ) Is two-dimensionalized to obtain rectangular coordinates i, j (FIG. 5) (step S4).

Then, the data is associated with the color data in step S2 (step S5). If the coating is not completed (NO), the computer determines the data in step S2 according to the position of the coating gun section 12. The obtained color is taken in (step S6), and the desired color is sprayed to perform coating (step S7).

Then, the data that the painting is completed is written (step S8). If YES in step S5 and after step S8 ends, the process returns to step S3. Then perform the following work.

Since the coating gun section 12 is suspended by the suspension wire 11, it makes an arc motion. Therefore, the operations of the above steps S3 to S8 are works at a point (i, j) of this circular arc motion. Therefore, it is possible to correct the excess or deficiency of the color of the wall surface by performing the arc movement several times. Therefore, the main body 3 can be traversed in the x direction and the entire length of the wall surface can be accommodated in the y direction by the payout length of the suspension wire 11.

FIG. 8 shows one mode of spraying according to the present invention. In the figure, red R1% and green G at points i1 and j1.
1%, blue B1%, red R2%, green G at points i2 and j2
2%, blue B2%, red R3%, green G at points i3 and j3
3% and blue B 3% are sprayed. In this way, the entire wall surface may be painted according to the data shown in FIG.

In carrying out the present invention, the main body 3 is stopped at a specific position, the suspension wires are sequentially fed out while swinging the suspension wires, and when the lower end of the wall is reached, the suspension wires are rolled up and the main body is laterally moved. Then, the same coating may be sequentially performed.

As described above, if the color mixture and the x, y coordinates (i, j) are stored in advance, it is possible to easily draw on the wall surface.

[0023]

As described above, according to the present invention, accurate drawing can be performed in a short time without requiring a skilled person.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an apparatus for carrying out the present invention.

FIG. 2 is a front view showing the coating apparatus of FIG.

FIG. 3 is a vertical sectional view showing a guide sheave.

FIG. 4 is an operation flow chart.

FIG. 5 is a diagram illustrating a wall position of a color.

FIG. 6 is a drawing for explaining the wall surface position of the coating gun section.

FIG. 7 is a color data diagram with respect to wall surface positions.

FIG. 8 is a diagram illustrating a three-primary-color coating section.

[Explanation of symbols]

 A ... Building B ... Diagonal area C ... Effective coating area D ... Three-dimensional position measuring device 1 ... Traverse rail 2 ... Painting device 3 ... Main body 4 ... Traverse Wheels 5 ... Traverse wheel drive motor 6 ... Arm 7 ... Arm turning motor 8 ... Guide sheave 9 ... Suspension wire lifting motor 10 ... Sheave 11 ... Suspension wire 12 ... Painting gun section

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Claims (3)

[Claims] 1. A computer process is used to create a picture on a wall surface, which is converted into Cartesian coordinates to obtain color data for each coordinate, and the position of the painting gun is obtained with a three-dimensional position measuring device and converted into Cartesian coordinates. Then, a method for drawing a large-scale wall is characterized in that the drawing is performed by painting the color of the data according to the position of the painting gun section. 2. The drawing method for a large-scale wall surface according to claim 1, wherein the coating gun portion is hung on a hanging wire that can traverse, rotate and move up and down with respect to the wall surface. 3. The method for drawing a large-scale wall surface according to claim 1, wherein the painting is performed with a single color or a shade of three primary color dots.