JPH05337407A - Automatic thermal spraying device - Google Patents

Abstract

PURPOSE:To provide the device which simultaneously, continuously and automatically coats both side wall surfaces and top wall surface of large-sized iron and steel structures, etc. at a high speed. CONSTITUTION:The device body 2 is constituted by successively providing frames 3, 4 which are disposed in parallel by maintaining specified spacings to the top wall surfaces and side wall surfaces of objects A to be thermally sprayed, such as steel towers and bridges. The device body 2 is provided travelably along the objects A to be thermally sprayed and thermal spraying guns 15 are mounted freely movably to the respective frames 3, 4 along the frames 3, 4. The device body 2 and the respective thermal spraying guns 15 are automatically operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic thermal spraying device capable of efficiently coating the upper wall surface or side wall surface of a large steel structure such as a bridge from rust and corrosion. Is.

[0002]

2. Description of the Related Art Conventionally, thermal spraying for rust prevention and corrosion protection on the upper wall surface or the side wall surface of a large-sized steel structure of this type has been performed by hand.

[0003]

Therefore, a large amount of manpower and working time are required, resulting in poor work efficiency and a long working time, during which rust is generated on the non-coated wall surface. However, there is a problem that labor and time are further spent to remove the rust, which is extremely inefficient. Therefore, the present invention has been made in view of such problems, and an object thereof is to provide an automatic thermal spraying device capable of spraying each wall surface of a steel structure very efficiently.

[0004]

In order to achieve the above object, the automatic thermal spraying device of the present invention is arranged parallel to the upper wall surface and side wall surface of the object to be sprayed, such as a steel tower and a bridge, at a constant interval. The apparatus main body is constructed by connecting the respective frames connected to each other, the apparatus main body is provided so as to be able to travel along the sprayed object, and a thermal spray gun is movably mounted on each frame along the frame. The main body and each spray gun are provided so as to operate automatically.

[0005]

The main body of the apparatus runs along the non-sprayed material, and the spray guns mounted on the frames of the main body of the apparatus thus running move along the respective frames, and the spray material sprayed from each spray gun. Automatically and efficiently coats each wall surface of steel structures.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the automatic thermal spraying device according to the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 2, A is a material to be sprayed installed on the floor surface, that is, a bridge having a short sectional shape, and has a U-shaped cross section along the thermal spray material A on both sides thereof on the floor surface. A pair of rails 1 and 1 are laid in parallel.
Reference numeral 2 is an apparatus main body that travels on the rails 1 and 1 along the material A to be sprayed, and is a pair of vertical axis frames 3 and 3 standing upright to the left and right.
And a horizontal axis frame 4 is provided between the upper ends of both vertical axis frames 3 and 3 and these are connected to form a gate shape. Further, the horizontal axis frame 4 and the both vertical axis frames 3 and 3 are arranged in parallel with the upper wall surface and the side wall surface of the object A to be sprayed at a constant interval.

A pair of left and right wheels 5 and 5 are pivotally supported on the lower ends of the pair of vertical frames 3 and 3 so that they are fitted into the rails 1 and 1 to roll. Further, a drive motor 6 is attached to one of the vertical axis frames 3, and the drive motor 6 is attached.
The sprocket 7 is fixed to the shaft of the wheel 5, the sprocket 8 is fixed to the shaft of the wheel 5, and the chain 9 is suspended between the sprockets 7 and 8 to drive the drive motor 6 to drive the main body 2 of the apparatus.
Are allowed to travel along the pair of rails 1, 1. The drive motor 6 operates so as to feed the apparatus main body 2 at a pitch because of thermal spraying.

The horizontal axis frame 4 is composed of a pair of front and rear rail frames 4a having a U-shaped cross section, and a mounting jig 10 is arranged between them. The mounting jig 10 is fitted into the rail frames 4a, 4a on the outer sides of a pair of front and rear mounting plates 11, 11 for mounting rollers 12, 12 rolling along the rail frames 4a, 4a, and at the same time, a lower portion. Auxiliary rollers 13, 13 are attached to the rail frames 4a, 4a, which rotate by contacting the lower surfaces of the rail frames 4a, 4a.

Then, a pair of thermal spray guns 15 and 15 with the injection port 15a directed directly below are fixed to one side of the base frame 14 that is inserted between the mounting plates 11 and 11. The horizontal axis frame 4
Rotating shafts 17 and 17 supported by bearings 16 and 16 are arranged at both ends of the rotating shafts 17, and sprockets 18 and 18 are fixed to both sides of the rotating shafts 17 and 17, respectively. Chains 19 and 19 are wound around the respective sprockets 18 and 18, and both ends thereof are supported by the mounting jig 10. A drive sprocket 20 is fixed to one end of the one rotating shaft 17.
Further, a drive motor 21 with a transmission is arranged on the upper surface of the horizontal shaft frame 4 in the vicinity of the drive sprocket 20, and a chain 24 is provided between the sprocket 23 fixed to the tip of the drive motor shaft 22 and the drive sprocket 20. Suspend. Then, by driving the drive motor 21, the chains 19, 19 and 24 are operated so that the mounting jig 10 can be moved left and right along the horizontal axis frame 4.

Similarly, the left and right ordinate frames 3, 3 are also composed of a pair of front and rear rail frames 3a, 3a having a U-shaped cross section, and a mounting jig 10 is arranged between them. The mounting jig 10 is fitted into the rail frames 3a, 3a outside the pair of front and rear mounting plates 11, 11 and is equipped with rollers 12, 12 rolling along the rail frames 3a, 3a. Auxiliary rollers 13 and 13 are mounted on one side of the rail frames 3a and 3a so as to come into contact with the peripheral side surfaces of the rail frames 3a and rotate.

Then, a pair of thermal spray guns 15 and 15 in which the injection port 15a is horizontally oriented inward are fixed to one side of the base frame 14 which is inserted between the mounting plates 11 and 11. Bearings 16 and 16 are also provided on the upper and lower ends of the vertical shaft frames 3 and 3, respectively.
The rotary shafts 17, 17 supported by
Sprockets 18 and 18 are fixed to both sides of 7 and 17, respectively. Each sprocket 18, 18 has a chain 19, 19
Is wound, and both ends thereof are supported by the mounting jig 10. The drive sprocket 2 is attached to one end of the upper rotary shaft 17.
Stick 0. Further, a drive motor 21 with a transmission is disposed on one side surface of the vertical axis frame 3 in the vicinity of the drive sprocket 20, and a chain is provided between a sprocket 23 provided at the tip of the drive motor shaft 21 and the drive sprocket 20. Two
Suspend 4. Then, the drive motor 21 is driven to operate the chains 19, 19 and 24 so that the mounting jig 10 can be moved up and down along the vertical frames 3 and 3.

The above-mentioned movement of the apparatus main body 2 and movement of the thermal spray guns 15 and 15 are controlled by a sequence program, and all are automatically performed. For example, the pitch feed of the apparatus main body 2 is 10 to 100 mm / sec, and the spray guns 15 and 15 are moved at a maximum speed of 40 m / min.

The automatic thermal spraying device according to the present invention has the above-mentioned structure, and its operation will be described below. The drive motor 6 is operated to feed the device body 2 along the rails 1 and 1 one pitch at a time. During this time, the mounting jig 10 is reciprocated along the horizontal axis frame 4 and the mounting jigs 10, 10 are reciprocated along the vertical axis frames 3 and 3, respectively, so that the spray gun 15 and
The material 15 is sprayed onto the upper wall and the left and right side walls of the object A to be sprayed. By coating simultaneously and continuously in this way, work is efficiently performed.

The apparatus main body 2'shown in FIG. 8 shows another embodiment in which the upper wall of the object to be sprayed A'is inclined to one side, and in this case, along the inclined surface. Horizontal axis frame 4
The device main body 2'is configured by inclining ???. The apparatus main body 2 ′ can also perform the coating work in a similar manner, and for the objects to be sprayed having other shapes, the horizontal axis frame or the vertical axis frame may be configured according to the outer shape.

[0015]

As described above, in the automatic thermal spraying device of the present invention, the device main body is constructed so as to match the object to be sprayed, and is fed by a pitch feed along a rail, and further in a direction perpendicular to the device main body. And a spray gun that moves in the horizontal direction are mounted, and the traveling pitch of this equipment and the movement of each spray gun are automated by the control of a sequence program, and the upper surface or both side surfaces of a large steel structure, etc. are simultaneously Moreover, since coating can be performed continuously at a high speed,
It has an effect that coating can be performed efficiently and speedily without generation of rust, which is seen in conventional manual work.

[Brief description of drawings]

FIG. 1 is a front view showing the outline of an automatic thermal spraying device.

FIG. 2 is a side view showing the outline.

FIG. 3 is an enlarged front view of a part of a horizontal axis frame and a part of a vertical axis frame that are partially cut away.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is an enlarged plan view of a horizontal axis frame.

6 is a cross-sectional view taken along line YY of FIG.

7 is a sectional view taken along line ZZ of FIG.

FIG. 8 is a front view showing the outline of an automatic thermal spraying device according to another embodiment.

[Explanation of symbols]

 A Thermal spraying target 2 Device main body 3,3 Vertical axis frame 4 Horizontal axis frame 15 Thermal spray gun

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuo Tanaka 4-4-4 Takejodai, Sakai City

Claims (1)

[Claims] 1. An apparatus main body is constructed by connecting frames, which are arranged in parallel to the upper wall surface and side wall surface of an object to be sprayed such as a steel tower and a bridge, with a constant gap therebetween, and the apparatus main body is provided with the object to be covered. It is characterized in that it is provided so as to be able to run along the sprayed object, and that a spraying gun is movably attached to each frame along each frame so that the apparatus main body and each spraying gun are automatically moved. Automatic spraying device.