JP3408694B2 - Adhesive coating equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention applies a film of resin, woven fabric, metal or the like to a vertical surface or a horizontal lower surface of a magnetic structure such as a tank, piping, bridge, ship, building, etc. by adhesive coating. The present invention relates to an adhesive coating device that protects the surface.

[0002]

2. Description of the Related Art For example, in order to protect structures such as tanks, pipes, bridges and ships from corrosion and the like, the structures are painted. A conventional spray coating apparatus used for this coating is shown in FIG.

In FIG. 7, reference numeral 21 is a frame, 22 is a wheel, 23 is a drive device, 24 is a permanent magnet, 25 is a magnet moving device, 26 is a paint tank, 27 is an airless nozzle, and 28.
Is a paint tank, 29 is a control device, 30 is a power supply, 31 is a communication cable, and 100 is a magnetic structure.

In such a spray coating apparatus, the structure 10
The controller 29 controls the magnet moving device 25 so as to attach it to 0 with a predetermined attraction force, adjusts the distance between the permanent magnet 24 and the structure 100, and travels on each surface of the structure 100 at a predetermined speed. The paint is fed from the paint tank 28 to the paint tank 26 through the communication cable 31 while controlling the drive device 23 to rotate the wheels 22 so that the paint is directed from the airless nozzle 27 toward the structure 100. By spraying, the spray coating can be automatically applied to the wall surface, the ceiling surface, and the like of the bottom surface of the structure 100.

However, if each surface of the structure 100 is painted while spraying the paint as described above, the paint, the solvent and the like may be scattered during the painting, and the surroundings may be contaminated. It is necessary to install various kinds of antifouling equipment around the application area, and it takes a lot of time for preparatory work and post work for the painting.

Therefore, as shown in FIG. 8, the composite film 101 having the layer of the hot melt adhesive 101b provided on the inner surface side of the coating film 101a is attached to the structure 100, and the heating body 41 is pressed against the composite film 101. By operating the high frequency electromagnetic induction heating coil 42, the structure 100 is electromagnetically heated to melt the hot-melt adhesive 101b of the composite film 101, and the composite film 101 including the bottom surface of the structure 100 as a wall surface. There is a method of applying adhesive coating on the ceiling surface, etc.

[0007]

However, the method of adhering and coating the composite film 101 to the structure 100 as described above is performed manually, so that not only is work efficiency extremely low, but also high work efficiency is required. When constructing a place, it is necessary to assemble scaffolds and work at high places, which requires a great deal of effort to ensure safety.

From the above, Japanese Patent Laid-Open No. 7-2059
Although Japanese Patent Publication No. 7 proposes an apparatus capable of automatically adhesively coating the composite film as described above on a horizontal plane by high frequency electromagnetic induction heating, the adhesive coating apparatus proposed in the publication is horizontal. Since it can be applied only to the upper surface, the vertical surface such as the wall surface or the ceiling surface of the structure 100 or the horizontal lower surface cannot be adhesively coated.

Therefore, according to the present invention, safety can be easily ensured even on a vertical surface or a horizontal lower surface at a high place, and
It is an object of the present invention to provide an adhesive coating device capable of efficiently performing adhesive coating.

[0010]

In order to achieve the above-mentioned object, an adhesive coating apparatus according to the present invention is an adhesive coating apparatus for adhering a coating film to the surface of a magnetic structure through a hot melt adhesive. A frame that travels and moves on the surface of the structure, a magnet that is provided on the frame and that attracts the structure so as to attach the frame to the structure, and a frame that is provided on the frame Magnet moving means for adjusting the distance between the surface and the magnet, an electromagnetic induction heating coil provided in the frame for electromagnetic induction heating of the structure, and a rear side in the traveling direction of the electromagnetic induction heating coil of the frame. provided, Bei a pressing roller for pressing the coating film in the structure
The pressing roller is the first pressing roller,
It is provided in front of the first pressing roller in the traveling direction, and
The pressing surface of the coating film rather than the first pressing roller
And a second pressing roller having a small product .

[0011] In the adhesive coating apparatus described above, provided on the frame, the said hot coated the coating film of the melt adhesive together when the wound, the pressing roller the coating film with the travel movement structure It is characterized in that it is equipped with a film roll to be sent to and from the body.

[0012]

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of an adhesive coating apparatus according to the present invention will be described with reference to FIGS. In addition,
FIG. 1 is an overall schematic structural diagram of the device, and FIG. 2 is a plan view showing a schematic configuration of the inside of the device.

As shown in FIGS. 1 and 2, a front wheel 2a is provided on the front side of the bottom surface 1a of the frame 1 via a drive device 3a. Rear wheels 2b are provided on the rear side of the bottom surface 1a of the frame 1 via a drive device 3b. A permanent magnet 4 is provided in a central portion of the inside of the frame 1 via a magnet moving device 5 which is a magnet moving means, and the permanent magnet 4 is attached to the bottom surface 1a of the frame 1 by the magnet moving device 5. It can penetrate and move between the inside and the outside of the frame 1.

An electromagnetic induction heating coil 6 is provided on the bottom surface 1a of the frame 1 between the front wheel 2a and the permanent magnet 4. At the central portion of the bottom surface 1a of the frame 1 between the electromagnetic induction heating coil 6 and the permanent magnet 4, a front pressing roller 7a, which is a second pressing roller having a length shorter than the length of the frame 1 in the width direction, is provided. It is provided. Rear wheel 2b
A rear pressing roller 7b, which is a first pressing roller having a length over the entire width direction of the frame 1, is provided on a bottom surface 1a portion of the frame 1 between the permanent magnet 4 and the permanent magnet 4.

A high-frequency transformer 8 is provided inside the frame 1.
The high frequency transformer 8 is connected to the electromagnetic induction heating coil 6 via a cable 9a, while the high frequency transformer 8 is connected to a high frequency power source 10 outside the frame 1 by a cable 9b.
Connected through.

The driving devices 3a and 3b and the magnet moving device 5 are electrically connected to a control device 11 outside the frame 1, and the control device 11 controls the driving devices 3a and 3b and the magnet moving device. The device 5 can be controlled.

In FIG. 1, 100 is a magnetic structure, 101 is a composite film, and the composite film 1
As shown in FIG. 3, 01 is a coating film 101a provided with a layer of the hot melt adhesive 101b.

Such an adhesive coating device is used as follows. After pasting the composite film 101 on the target surface (wall surface, for example) of the structure 100, the high frequency power source 10 is operated, and the electromagnetic induction heating coil 6 is operated via the cable 9b, the high frequency transformer 8 and the cable 9a. The controller 11 is operated to control the magnet moving device 5 so that the magnet 100 is attached to the structure 100 with an attraction force of a predetermined magnitude to adjust the distance between the permanent magnet 4 and the structure 100.
When the driving devices 3a and 3b are controlled so as to travel at a predetermined speed and the rotational speeds of the front wheels 2a and the rear wheels 2b are adjusted to travel on the composite film 101, the induction heating coil 6 causes the structure 100 to move. Of the composite film 101 by induction heating along the traveling direction of the composite film 101.
Is melted along the traveling direction, and the front pressing roller 7a moves the hot melt adhesive 10 along with the traveling.
Coating film 1 is applied only to the central portion in the width direction of the molten portion 1b.
After pressing from 01a onto the structure 100, the rear pressing roller 7b presses the composite film 101 onto the structure 100 by pressing the melted adhesive 101b over the entire length in the width direction of the melted portion, thereby coating the structure 100.

That is, the attraction force of the permanent magnets 4 allows the structure 100 to be mounted and run on the wall surface and the ceiling surface of the structure 100, and the front pressing roller 7a and the rear pressing roller 7b structure the composite film 101 with a predetermined pressing force. Body 10
So that it can be pressed against 0, and only the central portion in the width direction of the hot melt adhesive 101b is pressed by the front pressing roller 7a, and then the hot pressing adhesive 101b is melted by the rear pressing roller 7b over the entire width in the width direction. By pressing, that is, by pressing the composite film 101 in advance with the front pressing roller 7a having a smaller pressing area for the coating film 101a than the rear pressing roller 7b, the hot melt adhesive 101b and the structure 100 are pressed.
The composite film 101 can be adhered to the structure 100 while removing a small amount of air bubbles existing between and.

Therefore, according to such an adhesive coating device, the composite film 1 can be formed even on the wall surface or the ceiling surface of the structure 100.
Since 01 can be reliably adhesively painted, work at high places by workers can be eliminated, work safety can be greatly improved, and work efficiency is greatly improved because there is no need to assemble scaffolds. Can be improved.

A second embodiment of the adhesive coating apparatus according to the present invention will be described with reference to FIGS. In addition, in FIG.
FIG. 5 is an overall schematic structural view of the device, and FIG. 5 is a plan view showing a schematic configuration inside the device. However, for the same members as those in the above-described first embodiment, the same reference numerals as those in the above-described first embodiment are used, and the description thereof will be omitted.

As shown in FIG. 4, a film roll 12 is provided inside the frame 1. Frame 1
A guide roller 13 is provided in front of the front wheel 2a on the bottom surface 1a. Film roll 12 and guide roller 1
A guide plate 14 is provided between the guide plates 14 and 3. The composite film 101 is wound around the film roll 12, and the composite film 101 is moved from the film roll 12 to the guide plate 14 along with the traveling movement.
The guide roller 13 feeds it between the front pressing roller 7a and the structure 100 via the guide roller 13.

That is, in this embodiment, the film roll 12, the guide roller 13, and the guide plate 14 are provided in the above-described embodiment, and the composite film 101 can be attached to the structure 100 along with the traveling movement. I did it.

Therefore, according to such an adhesive coating apparatus, the same effects as those of the adhesive coating apparatus of the first embodiment described above can be obtained, and the structure 100 is provided with the composite film 101. Since the adhesive coating can be performed while sticking, the work safety can be further enhanced and the work efficiency can be further enhanced.

[0026]

EXAMPLE In order to confirm the effect of the adhesive coating apparatus of each of the above-described embodiments, the following confirmation experiment was conducted.

[Experiment 1] <Experimental Method> Using the apparatus of the first embodiment described above, while measuring the temperatures of the hot melt adhesive of the composite film and each layer of the coating film, the composite was prepared under the following conditions. After the film was adhesively coated on the structure, the adhesive state of the composite film was examined.

[0028]   <Experimental conditions> ・ Composite film-1800 made of fiber reinforced epoxy resin (manufactured by Asahi Denka Co., Ltd.)                 Hot melt adhesion to a coating film of size 200x5mm                 Agent (Kanebo NSC's Bondmaster 7310) is 100                 Those applied with a thickness of μm ・ Structure-Material: SS400 steel plate ・ High frequency power-frequency: 20 kHz               Output: 2kW ・ Traveling speed-0.4m / min

<Experimental Results> The temperatures of the coating film and each layer of the hot melt adhesive were measured while the composite film was adhesively coated under the above conditions, and the coating was performed when the hot melt adhesive melted and adhered to the structure. The film had a temperature of about 60 ° C. and did not undergo thermal deterioration. Next, when the composite film after adhesive coating was visually inspected, no large air bubbles were mixed in or wrinkles were observed. Subsequently, as a result of measuring the adhesive force of the composite film, 8
It showed 0 kg / cm ² or more, and had a sufficient size.

Therefore, it was confirmed that the adhesive coating apparatus according to the first embodiment can perform adhesive coating without any problem.

[Experiment 2] <Experimental Method> Using the apparatus of the second embodiment described above, the temperature of each layer of the hot melt adhesive of the composite film and the coating film was measured, and the composite was prepared under the following conditions. After the film was adhesively coated on the structure, the adhesive state of the composite film was examined.

<Experimental conditions> -Composite film-As shown in FIG. 6, a polyethylene terephthalate base film 102aa (thickness: 100
antifouling paint 102ab (made by Nichirin Co., Ltd.)
AF-100) is applied (thickness: 70 μm) to the other surface of the base film 102aa of the coating film 102a to form a hot melt adhesive 102b (Kanebo NSC Co., Ltd.).
Bond master 7310) applied in a thickness of 100 μm-Structure-Same as Experiment 1-High frequency power-Same as Experiment 1-Running speed-0.3 m / min

<Experimental Results> When the temperature of each layer of the coating film and the hot melt adhesive was measured while the composite film was adhesively coated under the above conditions, the hot melt adhesive was heated to about 100 ° C. and melted, Glued to the structure,
On the other hand, the coating film was heated up to only about 70 ° C., and deterioration of the antifouling effect of the antifouling paint after adhesive coating was suppressed. It was confirmed that the antifouling effect of the antifouling paint after adhesive coating was not deteriorated in the antifouling effect confirmation test performed after the adhesive coating. Next, when the composite film after adhesive coating was visually inspected, no large air bubbles were mixed in or wrinkles were observed. Then, the adhesive strength of the composite film (180
Peeling peel strength) 5 to 10 kg
It was / 25 cm and had a sufficient size.

Therefore, it was confirmed that the adhesive coating apparatus according to the second embodiment can be used for adhesive coating without any problem.

[0035]

According to the adhesive coating apparatus of the present invention, it is possible to efficiently perform adhesive coating even on a vertical surface or a horizontal lower surface at a high place while easily ensuring safety.

[Brief description of drawings]

FIG. 1 is an overall schematic structural diagram of a first embodiment of an adhesive coating device according to the present invention.

FIG. 2 is a plan view showing a schematic internal configuration of a first embodiment of an adhesive coating apparatus according to the present invention.

FIG. 3 is an enlarged sectional view taken along the line III in FIG.

FIG. 4 is an overall schematic structural diagram of a second embodiment of an adhesive coating device according to the present invention.

FIG. 5 is a plan view showing a schematic internal configuration of a first embodiment of an adhesive coating apparatus according to the present invention.

FIG. 6 is a cross-sectional view showing a configuration of a composite film used in Experiment 2.

FIG. 7 is an overall schematic structural diagram of a conventional spray coating apparatus.

FIG. 8 is an explanatory diagram of a conventional adhesive coating method.

[Explanation of symbols]

1 frame 2a front wheel 2b rear wheel 3a, 3b drive device 4 permanent magnet 5 Magnet moving device 6 electromagnetic induction heating coil 7a Front pressing roller 7b Rear pressure roller 8 high frequency transformer 9a, 9b cable 10 high frequency power supply 11 Control device 12 film roll 13 Guide roller 14 Guide plate 100 structures 101 composite film 101a paint film 101b hot melt adhesive

Front page continuation (72) Inventor Makio Atsumi 2-8-19, Niihama, Arai-cho, Takasago, Hyogo Prefecture Takahishi Engineering Co., Ltd. (56) Reference JP-A-6-91760 (JP, A) JP-A 62-184974 (JP, A) JP-A-52-32936 (JP, A) Jikhohei 6-1409 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29C 65/00 -65/82

Claims (2)

(57) [Claims] 1. An adhesive coating device for adhering a coating film to the surface of a magnetic structure via a hot melt adhesive, comprising: a frame that travels and moves on the surface of the structure; A magnet that attracts the structure so that the frame is attached to the structure, a magnet moving unit that is provided in the frame and that adjusts a distance between the surface of the structure and the magnet, and the frame is provided in the frame. An electromagnetic induction heating coil that electromagnetically heats the structure, and a pressing roller that is provided on the rear side in the traveling direction of the electromagnetic induction heating coil of the frame and presses the coating film against the structure , The pressing roller is provided on the first pressing roller and on the front side in the traveling direction with respect to the first pressing roller.
And the pressing of the coating film by the first pressing roller.
An adhesive coating device comprising: a second pressing roller having a small pressing area . Wherein provided in said frame, sends the both the coated the coating film of the hot melt adhesive is wound, the paint film with the travel movement between the structure and the press roller The adhesive coating apparatus according to claim 1, further comprising a film roll.