Automatic painting device for ships

Abstract

An automatic painting device for ships, comprising a guide rail slide, a spray gun, a paint hose, a solenoid valve, and a control box for controlling the solenoid valve. The spray gun is fixedly connected to the guide rail slide and can move back and forth on the guide rail slide. The tail of the spray gun is connected to the paint hose, and the paint hoses are connected by a solenoid valve. The device is characterized in that the distance between the two ends of the reciprocating movement of the spray gun is less than the range actually required for painting. A gun-swinging mechanism is fixed on the slider of the guide rail slide. The gun-swinging mechanism includes a limit baffle. The spray gun and the limit baffle are connected and fixed, and are rotatably arranged in the gun-swinging mechanism. Gun-swinging limiters are provided at both ends of the reciprocating movement of the spray gun. When the spray gun moves to a position where the limit baffle and the gun-swinging limiter are at the same level, the limit baffle rotates inward, and the spray gun swings the paint outward, and the thrown paint falls into the range required for painting. The spray gun then moves in the opposite direction to perform reciprocating painting. The advantages of the present invention are: uniform overall painting, green and environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to an automatic painting device for ships. Background Art

[0002] Paint spraying produces paint mist and VOCs (volatile organic compounds). Globally, the environmental pollution caused by ship painting is becoming increasingly severe each year. To meet stringent environmental protection requirements, ship painting operations require technical optimization to ensure green and environmentally friendly painting practices. Traditional manual painting methods require scaffolding or the use of overhead cranes, which are dangerous, labor-intensive, and expensive to construct. Consequently, automated painting systems are beginning to be used in the ship painting industry.

[0003] Related devices can refer to a sprayer disclosed in a Chinese utility model patent with patent number 202021424730.1 (authorization announcement number CN213000775U) entitled "A New Type of Ship Sprayer". The device cooperates between a base plate, a support plate, a spray gun, a connecting mechanism, a trigger mechanism, a transmission mechanism, a universal wheel and a control box. When the spray gun is spraying, the operator powers the motor to rotate the screw. During this period, due to the threaded connection between the screw and the support plate and the positioning of the vertical plate on the limit block, the support plate can be reciprocated up and down, and then the spray gun can be reciprocated up and down, which can provide convenience for the spraying operator. Although the sprayer can replace manual reciprocating painting, the reciprocating paint spraying movement will cause the reciprocating two ends to spray repeatedly, resulting in paint accumulation and sagging at both ends, uneven paint spraying, and poor overall spraying quality, which cannot meet the standard film thickness requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic painting device for ships that sprays paint evenly in response to the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an automatic painting device for ships, comprising a guide rail slide, a spray gun, a paint hose, a solenoid valve and a control box for controlling the solenoid valve, the spray gun is fixedly connected to the guide rail slide and can move back and forth on the guide rail slide, the tail of the spray gun is connected to the paint hose, and the paint hoses are connected by a solenoid valve, which is characterized in that: the distance between the two ends of the reciprocating movement of the spray gun is less than the range actually required for painting, a gun-swinging mechanism is fixed on the slider of the guide rail slide, the gun-swinging mechanism includes a limit baffle, the spray gun and the limit baffle are connected and fixed, and are rotatably arranged in the gun-swinging mechanism, and gun-swinging limiters are provided at both ends of the reciprocating movement of the spray gun. When the spray gun moves to the position where the limit baffle and the gun-swinging limiter are at odds, the limit baffle rotates inward, the spray gun swings the paint outward, and the thrown paint falls into the range required for painting, and the spray gun moves in the opposite direction to perform reciprocating painting.

[0006] In order to prevent the diffusion of paint mist and VOCs gas generated during painting, a paint spray cover is fixed under the guide rail slide, and a paint spray groove is provided in the middle of the top of the paint spray cover for reciprocating paint spraying by a spray gun.

[0007] In order to make the paint thrown out by the spray gun fall into the interior of the paint spraying hood, the length of the paint spraying trough is smaller than the length of the paint spraying hood.

[0008] Furthermore, gun swinging limiters are fixed at both ends of the side wall of the paint spray hood close to the guide rail slide. When the spray gun moves to the position where the limit baffle and the gun swinging limiter are in contact, the head of the spray gun is still within the range of the paint spray trough and rotates toward the inside of the paint spray hood, so that the paint is thrown out to the outside, and the thrown paint is within the range of the paint spray hood.

[0009] There are various structures of the gun swing limiter. Preferably, the gun swing limiter includes round steel, a first nut, a first screw, a second nut and a second screw. The round steel is welded and fixed to the paint cover, and the first nut is welded after being bent 90°. The second nut is welded to the upper end of the first screw, and the lower end is fixed through the first nut, and the second screw is fixed through the second nut.

[0010] In order to prevent the gun swing limiter from generating noise and explosion danger when colliding with the limit baffle, a nylon top support is provided on the end of the second screw that contacts the limit baffle.

[0011] In order to ensure that the spray gun is always spraying vertically on the paint surface, the gun-swinging mechanism also includes a gun-swinging base. Two pipe clamps that can slide left and right are provided on the gun-swinging base. After the pipe clamps are aligned, two bearings are fixed in the middle. The bearings fix the spray gun, and the two sides of the limit baffle and the gun-swinging base are connected with springs.

[0012] In order to further prevent the overflow of paint mist and VOCs gas in the paint spray hood and reduce the impact of painting on the environment, a blow pipe is provided on the inner side of the bottom of the paint spray hood, and a 45-degree circular blow hole is opened in the blow pipe obliquely inward.

[0013] In order to recover and filter the paint mist and VOCs gas in the paint hood, the paint hood is fixed to a shelf, and an exhaust fan, a filter box and a connecting pipe are fixed above the shelf. The exhaust fan is connected to the filter box, and the filter box is connected to the paint hood through a connecting pipe. The filter box is filled with filter cotton and activated carbon.

[0014] In order to facilitate the use of the device on ships, the device also includes a walking robot with a permanent magnet and a connecting seat. The upper part of the walking robot is connected to the paint hood through the connecting seat, and the walking is controlled by a control box.

[0015] Compared with the prior art, the advantages of the present invention are: through the cooperation of the gun swing limiter and the limit baffle, when the spray gun moves to the position where the limit baffle and the gun swing limiter are in contact, the limit baffle rotates inward, and the spray gun swings the paint outward, and the thrown paint falls into the required spraying range, so that the paint will not accumulate and sag at both ends, the overall paint spraying is uniform, and can meet the standard film thickness requirements; at the same time, a paint spray cover and a filter box are provided to prevent the paint mist and VOCs gas generated during spraying from diffusing, which is safer for construction workers, green and environmentally friendly, and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural front view of an embodiment of the present invention;

[0017] Figure 2 This is a structural rear view of an embodiment of the present invention;

[0018] Figure 3 A top view of the structure of an embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the paint hood structure in an embodiment of the present invention;

[0020] Figure 5 For the present invention Figure 4 The enlarged diagram of the gun swing limiter at A in the middle;

[0021] Figure 6 Schematic diagram of the spray gun, gun-swinging mechanism and guide rail slide structure in an embodiment of the present invention;

[0022] Figure 7 A cross-sectional view of a gun-swinging mechanism according to an embodiment of the present invention;

[0023] Figure 8 Schematic diagram of a control box in an embodiment of the present invention;

[0024] Figure 9 This is a schematic structural diagram of a connecting base in an embodiment of the present invention;

[0025] Figure 10 This is a schematic structural diagram of the filter box, exhaust fan, and connecting pipe in an embodiment of the present invention;

[0026] Figure 11 is a cross-sectional view of a filter box in an embodiment of the present invention;

[0027] Figure 12 Schematic diagram of the principle of the spray gun swinging in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1-3 As shown in Figures 8-9, an automatic painting device for ships includes a walking robot 14 with a permanent magnet, a connecting base 15, a guide rail slide 1, a spray gun 2, a paint hose 3, a solenoid valve 4, a control box 5 for controlling the solenoid valve 4 and the walking robot 14, and a paint hood 8. The distance between the two ends of the reciprocating movement of the spray gun 2 is smaller than the actual range of paint to be sprayed.

[0030] like Figure 4-5 As shown, a paint hood 8 is fixed below the guide rail slide 1, and a paint trough 81 is provided in the middle of the top of the paint hood 8, which is shorter than the length of the paint hood 8, for the spray gun 2 to spray paint back and forth, thereby preventing the paint mist and VOCs gas generated during the spraying from diffusing. A blow pipe 9 is provided on the inner side below the paint hood 8, and a circular blow hole is provided in the blow pipe 9 at a 45-degree angle. Gun swing limiters 7 are fixed at both ends of the reciprocating movement of the spray gun 2, that is, at both ends of the side wall of the paint hood 8 close to the guide rail slide 1. The gun swinging limiter 7 includes a round steel 71, a first nut 72, a first screw 73, a second nut 74 and a second screw 75. The round steel 71 is welded to the paint cover 8 and is welded with the first nut 72 after being bent 90°. The upper end of the first screw 73 is welded with the second nut 74, and the lower end is fixed by passing through the first nut 72. The second screw 75 is fixed by passing through the second nut 74. The end of the second screw 75 that is against the limit baffle 6 is provided with a nylon top support 76, which can prevent the gun swinging limiter 7 from generating noise and explosion hazard when colliding with the limit baffle 61.

[0031] like Figure 6 As shown, the spray gun 2 is fixedly connected to the guide rail slide 1 and can move back and forth on the guide rail slide 1. The tail of the spray gun 2 is connected to the paint spray hose 3, and the paint spray hoses 3 are connected by a solenoid valve 4. They are used in conjunction with the control box 4 and use remote control technology to start and stop, ensuring that the painting is automated.

[0032] like Figure 7 As shown, a gun-swinging mechanism 6 is fixed on the slider of the guide rail slide 1, and the gun-swinging mechanism 6 includes a limit baffle 61 and a gun-swinging base 62. The spray gun 2 and the limit baffle 61 are connected and fixed, and are rotatably arranged in the gun-swinging mechanism 6. Two pipe clamps 63 that can slide left and right are provided on the gun-swinging base 62. After the pipe clamps 63 are matched, two bearings 64 are fixed in the middle. The bearings 64 fix the spray gun 2. The two sides of the limit baffle 61 and the gun-swinging base 62 are connected by springs 65.

[0033] In this embodiment, when the spray gun 2 moves to the position where the limit baffle 6 and the gun swing limiter 7 are at the top, Figure 12As shown, the head of the spray gun 2 remains within the range of the paint spray tank 81 and rotates toward the interior of the paint spray hood 8, causing the paint to be flung outward, simulating manual painting and causing the paint to be flung inward. The flung paint is within the range of the paint spray hood 8, preventing the paint from accumulating and sagging at the limit. At this time, the springs 65 on both sides are subjected to tension in the opposite direction. When the limit baffle 61 separates from the gun-flinging limiter 7, the springs 65 on both sides return to normal, ensuring that the spray gun 2 always sprays paint perpendicular to the paint surface. When the second spraying is performed, the edge spray gun is pressed to ensure that the paint film thickness meets the design requirements.

[0034] like Figure 10-11 As shown, the paint hood 8 is fixed to the shelf 10, and an exhaust fan 11, a filter box 12 and a connecting pipe 13 are fixed above the shelf 10. The exhaust fan 11 is connected to the filter box 12, and the filter box 12 is connected to the paint hood 8 through the connecting pipe 13. The filter box 12 is equipped with filter cotton 121 and activated carbon 122. When spraying paint, under the action of the exhaust fan 11, the paint mist and VOCs gas in the paint hood 8 are recovered and filtered. The filter cotton 121 absorbs the paint mist and the activated carbon 122 absorbs the VOCs gas, ensuring that the painting operation is environmentally friendly and the painting efficiency is more efficient.

[0035] The working principle of this embodiment is as follows: The ship is hoisted to the painting surface of the ship using the automatic painting device, and the permanent magnet on the walking robot 14 is fixed to the ship's outer plate by adsorption. The walking robot 14 contacts the ship's surface only through the driving wheel and the driven wheel. The permanent magnet and other structures are separated by a 3cm gap from the ship's surface, which is beneficial for protecting the paint. The walking trajectory of the walking robot 1 is designed according to the flat area of ​​the ship's outer plate. The walking robot 1 is controlled by the control box 5, and the guide rail slide 1, exhaust fan 11, blower pipe 9, paint pump and solenoid valve 4 are turned on to realize automatic painting. This brings the high-altitude work to the ground, and changes the close contact to zero contact, which is safe, reliable and highly efficient.

Claims

1. An automatic painting device for ships, comprising a guide rail slide (1), a spray gun (2), a paint spray hose (3), a solenoid valve (4), and a control box (5) for controlling the solenoid valve (4), wherein the spray gun (2) is fixedly connected to the guide rail slide (1) and can reciprocate on the guide rail slide (1), the tail of the spray gun (2) is connected to the paint spray hose (3), and the paint spray hoses (3) are connected by a solenoid valve (4), characterized in that: The distance between the two ends of the reciprocating movement of the spray gun (2) is smaller than the range actually required for spraying paint. A gun-swinging mechanism (6) is fixed on the slider of the guide rail slide (1). The gun-swinging mechanism (6) includes a limit baffle (61). The spray gun (2) and the limit baffle (61) are connected and fixed and rotatably arranged in the gun-swinging mechanism (6). Gun-swinging limiters (7) are provided at the two ends of the reciprocating movement of the spray gun (2). When the spray gun (2) moves to a position where the limit baffle (61) and the gun-swinging limiter (7) are in contact with each other, the limit baffle (61) rotates inward, and the spray gun (2) swings the paint outward, and the thrown paint falls into the range required for spraying paint. The spray gun (2) then moves in the opposite direction to perform reciprocating spraying. A paint spraying cover (8) is fixed below the guide rail slide (1), and a paint spraying groove (81) is provided in the middle of the top of the paint spraying cover (8) for the spray gun (2) to spray paint back and forth; gun swinging limiters (7) are fixed at both ends of the side wall of the paint spraying cover (8) close to the guide rail slide (1), and when the spray gun (2) moves to the position where the limit baffle (61) and the gun swinging limiter (7) are in contact with each other, the head of the spray gun (2) is still within the range of the paint spraying groove (81) and rotates toward the inside of the paint spraying cover (8), so that the paint is thrown out to the outside. The paint is within the range of the paint spraying cover (8); the gun swinging limiter (7) includes a round steel (71), a first nut (72), a first screw (73), a second nut (74) and a second screw (75), the round steel (71) is welded to the paint spraying cover (8), and the first nut (72) is welded after being bent 90 degrees, the upper end of the first screw (73) is welded with the second nut (74), and the lower end passes through the first nut (72) for fixation, and the second screw (75) passes through the second nut (74) for fixation.

2. The automatic painting device for ships according to claim 1, characterized in that: The length of the paint spraying tank (81) is smaller than the length of the paint spraying cover (8).

3. The automatic painting device for ships according to claim 1, characterized in that: One end of the second screw (75) that contacts the limiting baffle (61) is sleeved with a nylon support (76).

4. The automatic painting device for ships according to any one of claims 1 to 3, characterized in that: The gun-swinging mechanism (6) also includes a gun-swinging base (62), and two pipe clamps (63) that can slide left and right are provided on the gun-swinging base (62). After the pipe clamps (63) are aligned, two bearings (64) are fixed in the middle. The bearings (64) fix the spray gun (2). The two sides of the limit baffle (61) and the gun-swinging base (62) are connected by springs (65).

5. The automatic painting device for ships according to claim 1, characterized in that: A blow pipe (9) is provided on the inner side below the spray paint cover (8), and a circular blow hole with a 45-degree angle is provided in the blow pipe (9).

6. The automatic painting device for ships according to claim 1, characterized in that: The paint spray hood (8) is fixed to a shelf (10), an exhaust fan (11), a filter box (12) and a connecting pipe (13) are fixed above the shelf (10), the exhaust fan (11) is connected to the filter box (12), the filter box (12) is connected to the paint spray hood (8) through the connecting pipe (13), and the filter box (12) is equipped with filter cotton (121) and activated carbon (122).

7. The automatic painting device for ships according to claim 1, characterized in that: The device also includes a walking robot (14) with a permanent magnet and a connecting seat (15). The upper portion of the walking robot (14) is connected to the paint spraying hood (8) via the connecting seat (15), and the walking is controlled by a control box (5).

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