METHOD FOR BEAUTIFYING BALSA WOOD MODEL AIRCRAFT WITH THERMAL SHRINK COVERING FILM

Abstract

A method for beautifying a balsa wood model aircraft with a thermal shrink covering film, so that the balsa wood model aircraft with a thermal shrink covering film is obtained. This method makes a model aircraft colorful, reduces labor costs, improves the beautifying and painting effect of the model aircraft, and also improves the pneumatic performance of the model aircraft.

Claims

1. A method for beautifying a balsa wood model aircraft with a thermal shrink covering film, the method comprising: placing a covering film on a working platform of a UV flatbed printer, and printing a colored ink on the white covering film using the UV flatbed printer to obtain a covering film printed with a graphic; placing a wooden-structure frame of a model aircraft on a horizontal desktop, and pressing the covering film printed with the graphic onto the wooden-structure frame of the model aircraft using an iron to obtain a treated model aircraft; evenly heating the surface of the covering using an industrial heat gun, and stopping heating when the covering film is evenly shrunk and adhered to the wooden-structure frame of the model aircraft; and dedusting the surface of the covering film, and spraying a layer of varnish on the surface of the covering film, so that the balsa wood model aircraft with a thermal shrink covering film is obtained after the varnish is dried completely.

2. The method of claim 1, wherein in the working platform of the UV flatbed printer comprises a rack and a workbench, wherein the workbench is mounted on the rack.

3. The method of claim 1, wherein the covering film is a paintable polyester film.

4. The method of claim 1, wherein the covering film is white.

5. The method of claim 1, wherein the iron has a temperature ranging from approximately 205-215° C.

6. The method of claim 1, wherein the industrial heat gun has a temperature ranging from approximately 205-215° C.

7. The method of claim 1, wherein the layer of varnish has a thickness of 0.01-0.02 mm.

8. The method of claim 1, wherein the step of evenly heating the surface of the covering using an industrial heat gun is at a position 12 cm thereabove.

9. The method of claim 1, wherein the step of evenly heating the surface of the covering using an industrial heat gun forms an angle of inclination of 50-60 degrees with the horizontal plane.

10. The method of claim 2, wherein the workbench comprises a workbench body and a workbench desktop, the workbench body comprising a cuboid structure having a length of 3120 mm and a width of 1820 mm, wherein the cuboid structure is mounted on the rack.

11. The method of claim 10, wherein the cuboid structure is provided with a rectangular groove having a length of 2740 mm and a width of 1300 mm, wherein the workbench desktop is disposed at the opening of the groove and is flush with the upper plane of the cuboid structure, wherein the workbench desktop and the groove are divided into four rectangular areas through partition plates arranged in the groove, wherein the air intakes are densely distributed in each rectangular area on the workbench desktop, and wherein the air intakes are arranged into a rectangle having a length of 2550 mm and a width of 1240 mm on the workbench desktop.

12. The method of claim 11, wherein the air intakes each have a diameter of 1.5 mm, and wherein a distance between centers of two adjacent air intakes is 20 mm, wherein each rectangular area in the groove is provided with a through hole at the bottom; and wherein the workbench body, the workbench desktop, and the partition plate are integrally formed.

13. The method of claim 11, further comprising one main pipe and two 1.1 KW vacuumizers disposed under the workbench body.

14. The method of claim 12, wherein the main pipe is provided with four air inlet ends and two air outlet ends, wherein the four air inlet ends on the main pipe are each connected to an air suction pipe, and wherein the other ends of the four air suction pipes separately pass through the through hole to be communicated with an area under the workbench desktop, wherein the two air outlet ends on the main pipe are each connected to an air inlet pipe, and wherein the other ends of the two air inlet pipes are connected to air inlet ends of the two vacuumizers respectively;

15. The method of claim 14, wherein the air outlet ends of the two vacuumizers are each connected to an air outlet pipe, and wherein four valves are mounted on a side wall of the rack, to control opening and closing of the four air suction pipes respectively.

16. A system for beautifying a balsa wood model aircraft with a thermal shrink covering film, the system comprising: a UV flatbed printer comprising a working platform comprising a rack and a workbench, and the workbench is mounted on the rack, the workbench comprising a workbench body and a workbench desktop, the workbench desktop is disposed at the opening of the groove and is flush with the upper plane of the cuboid structure, the workbench desktop and the groove are divided into four rectangular areas through partition plates arranged in the groove, the air intakes are densely distributed in each rectangular area on the workbench desktop, wherein each rectangular area in the groove is provided with a through hole at the bottom, and wherein the workbench body, the workbench desktop, and the partition plate are integrally formed; and one main pipe and two 1.1 KW vacuumizers disposed under the workbench body, the main pipe provided with four air inlet ends and two air outlet ends, the four air inlet ends on the main pipe are each connected to an air suction pipe, the other ends of the four air suction pipes separately pass through the through hole to be communicated with an area under the workbench desktop, the two air outlet ends on the main pipe are each connected to an air inlet pipe, and wherein the other ends of the two air inlet pipes are connected to air inlet ends of the two vacuumizers respectively, the air outlet ends of the two vacuumizers are each connected to an air outlet pipe, wherein the four valves are mounted on a side wall of the rack, to control opening and closing of the four air suction pipes respectively.

17. The system of claim 16, wherein the workbench body is of a cuboid structure having a length of 3120 mm and a width of 1820 mm, and is mounted on the rack, wherein the cuboid structure is provided with a rectangular groove having a length of 2740 mm and a width of 1300 mm.

18. The system of claim 16, wherein the air intakes are arranged into a rectangle having a length of 2550 mm and a width of 1240 mm on the workbench desktop, wherein the air intakes each have a diameter of 1.5 mm, and wherein a distance between centers of two adjacent air intakes is 20 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG. 1 is a front view of a working platform of a printer applicable to model aircraft printing according to the utility model;

[0031] FIG. 2 is a top view of the working platform of the printer applicable to model aircraft printing according to the utility model, where L represents length, and W represents width;

[0032] FIG. 3 is a schematic diagram of a connection between an air suction pipe and a through hole of the working platform of the printer applicable to model aircraft printing according to the utility model;

[0033] FIG. 4 is a left view of the working platform of the printer applicable to model aircraft printing according to the utility model; and

[0034] FIG. 5 is a schematic diagram of connections between a main pipe and air inlet pipes as well as air suction pipes of the working platform of the printer applicable to model aircraft printing according to the utility model.

[0035] In the drawings, parts represented by the reference numerals are listed as follows:

[0036] 1: rack; 2: workbench body; 3: workbench desktop; 4: air intake; 5: vacuumizer; 6: air inlet pipe; 7: air outlet pipe; 8: main pipe; 9: valve; 10: air suction pipe.

DETAILED DESCRIPTION OF THE INVENTION

[0037] The principle and features of the present invention are described in the following. The examples are only used for illustrating the present invention, but are not intended to limit the scope of the present invention.

Embodiment 1

[0038] A method for beautifying a balsa wood model aircraft with a thermal shrink covering film includes the following steps:

[0039] 1) A white covering film is placed on a working platform of a UV flatbed printer, and a colored ink is printed on the white covering film using the UV flatbed printer, to obtain a covering film printed with a graphic.

[0040] As shown in FIG. 1 to FIG. 5, the working platform of the UV flatbed printer includes a rack 1 and a workbench, and the workbench is mounted on the rack 1.

[0041] The workbench includes a workbench body 2 and a workbench desktop 3; the workbench body 2 is of a cuboid structure having a length (represented by L in FIG. 2) of 3120 mm and a width (represented by Win FIG. 2) of 1820 mm, and is mounted on the rack 1. The cuboid structure is provided with a rectangular groove having a length of 2740 mm and a width of 1300 mm. The workbench desktop 3 is disposed at the opening of the groove and is flush with the upper plane of the cuboid structure. The workbench desktop 3 and the groove are divided into four rectangular areas through partition plates arranged in the groove. Air intakes 4 are densely distributed in each rectangular area on the workbench desktop 3, and the air intakes 4 are arranged into a rectangle having a length of 2550 mm and a width of 1240 mm on the workbench desktop 3. The air intakes 4 each have a diameter of 1.5 mm, and a distance between centers of two adjacent air intakes 4 is 20 mm. Each rectangular area in the groove is provided with a through hole at the bottom. The workbench body 2, the workbench desktop 3, and the partition plate are integrally formed.

[0042] One main pipe 8 and two 1.1 KW vacuumizers 5 are disposed under the workbench body 2. The main pipe 8 is provided with four air inlet ends and two air outlet ends. The four air inlet ends on the main pipe 8 are each connected to an air suction pipe 10, and the other ends of the four air suction pipes 10 separately pass through the through hole to be communicated with an area under the workbench desktop 3. The two air outlet ends on the main pipe 8 are each connected to an air inlet pipe 6, and the other ends of the two air inlet pipes 6 are connected to air inlet ends of the two vacuumizers 5 respectively. Air outlet ends of the two vacuumizers 5 are each connected to an air outlet pipe 7. Four valves 9 are mounted on a side wall of the rack 1, to control opening and closing of the four air suction pipes 10 respectively.

[0043] 2) A wooden-structure frame of a model aircraft is placed on a horizontal desktop, and the covering film printed with a graphic is pressed onto the wooden-structure frame of the model aircraft using an iron of 205-215° C., to obtain a treated model aircraft.

[0044] 3) The surface of the covering film is evenly heated at a position 12 cm thereabove using an industrial heat gun that forms an angle of inclination of 50-60 degrees with the horizontal plane, and heating is stopped when the covering film is evenly shrunk and adhered to the wooden-structure frame of the model aircraft, wherein the industrial heat gun has a temperature of 205-215° C.

[0045] 4) The surface of the covering film is dedusted, and a layer of super-fast-drying varnish having a thickness of 0.01-0.02 mm is sprayed on the surface of the covering film, so that the balsa wood model aircraft with a thermal shrink covering film is obtained after the varnish is dried completely.

[0046] The model aircraft beautified using this method is light in weight. The existing beautifying process requires stacking of multiple layers of covering films to achieve a beautifying effect, while this method employs ink printing for beautifying, by using only one layer of covering film. In the model aircraft manufacturing industry, the decrease in weight is calculated in grams, and the weight of one square meter of covering film is 100 grams to 300 grams. When the wooden-structure frame of the same model aircraft is printed using this method and the existing beautifying method, this method reduces the weight by 10%.

[0047] In certain embodiments of the invention, the temperature of the iron used to press the covering film is at a range of 120-250° C. In preferred embodiments, the temperature of the iron used to press the covering film is at a range of is 205-215° C.

[0048] In certain embodiments, the temperature of the industrial heat gun has is at a range of 120-250° C. In preferred embodiments, the temperature of the industrial heat gun is at a range of 205-215° C.

[0049] In certain embodiments, the layer of super-fast-drying varnish has a thickness of 0.01-0.02 mm.

[0050] The above descriptions are merely preferred embodiments of the present invention, which are not intended to limit the present invention. Any modification, equivalent replacement, improvement, and so on made without departing from the spirit and principle of the present invention shall be covered in the protection scope of the present invention.