JPH03181355A - Automatic coating device - Google Patents

Abstract

PURPOSE:To easily set the automatic coating device on a vertical surface to be coated by opposing a guide rail hung from a hanger on the surface to be coated and holding the device at a fixed distance from the surface by a stabilizer. CONSTITUTION:Spray guns 12 and 13 for ejecting a coating are horizontally set on a guide rail 2 hung from a hanger 1 and extending to the left and right, and a truck 4 provided with an oscillating device 14 for oscillating the guns 12 and 13 to the left and right is horizontally and movably loaded by a traversing device 8. A stabilizer 26 having a magnet 29 for attracting the surface 20 to be coated in a non-contact state and a guide roller 31 arranged around the magnet 29 and contacting with the surface 20 is provided below the guide rail 2. Consequently, the device is easily set on the vertical surface to be coated, and coating is carried out with precision.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic painting device used to automatically paint a vertically flat surface to be painted, such as painting a ship's side skin. .

[Conventional technology] For example, the outer side panels and bottom outer panels of a ship built in a dock are painted, but the side panels are painted on the outer side and waves, which are constantly in contact with the air. It is necessary to apply a coating suitable for the navigational environmental conditions to the waterline area where the water is exposed.

Conventionally, automatic painting equipment has been used to paint the outer side panels of hulls built at docks because it is necessary to paint the outer side and waterline portions horizontally in parallel.

[Problems to be Solved by the Invention] However, in the case of the above-mentioned conventional automatic painting equipment, in order to maintain a constant distance from the ship's side shell, which is the surface to be painted, heavy structures and heavy equipment are required. It was extremely troublesome to set the colander close to the ship's side shell and maintain a constant distance between them.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to enable easy setting on a vertically oriented surface to be painted, and also to perform accurate tz mounting.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a system in which a spray gun that sprays paint is placed in a horizontal position on a guide rail that extends in the left-right direction and is suspended by a hanging device. A trolley equipped with an oscillating device that swings the spray gun in the left and right directions is mounted so that it can traverse freely by a traverse drive device, and the bottom of the guide rail is sucked into the surface to be coated without contacting it. The present invention is configured to include a shaking prevention device having a magnet and a guide roller arranged around the magnet and brought into contact with the surface to be coated.

[Operation] When the guide rail suspended by the suspension device is placed parallel to a vertically flat surface to be painted, such as a ship's side shell, the magnet of the anti-sway device attracts (suctions) the surface without contact. This makes it possible to maintain the guide rail at a constant distance from the surface to be painted.Therefore, if the paint is sprayed from the spray gun while the trolley is moving sideways along the guide rail, the paint will be automatically sprayed in a straight line. Also, at this time, when the trolley reaches its stroke, the spray gun can be swung diagonally outward by the oscillating device, resulting in a thicker paint film in some areas. This can be prevented, and the thickness of the coating film can be made uniform.

[Implementation Example 1] Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention, in which a suspension device 1 such as a crane is used to lift and lower the vehicle onto a guide rail 2 having a C-shaped cross section and extending horizontally in the left-right direction. , a bogie 4 is mounted so as to be able to move laterally in the left and right direction via guide wheels 3 that move along the upper surface, front surface, and rear surface of the guide rail 2;
Chain sprockets 5 and 6 are rotatably attached to both ends of the chain sprocket, and a chain sprocket 7 is endlessly hooked and rotated between the chain sprockets 5 and 6, and one of the chain sprockets 5 and 6 (in this embodiment) Now, a motor 8 as a bogie traverse drive device is connected to the Cheno sprocket 6), and further,
The middle part of the chino 7 is connected to an auxiliary frame 9 provided on the trolley 4, and the motor 8 is driven to move the chino 7 between the chain sprockets 5 and 6, so that the trolley 4 can move freely on the guide rail 2. be able to move to. The auxiliary frame 9 has a lower end extending from the lower end of the truck 4 to the lower surface of the guide rail 2 through the front surface of the guide rail 2. An auxiliary guide wheel 10 is attached, which is adapted to move along.

Further, upper and lower spray guns 12 and 13 are attached in a horizontal position to a support shaft 11 that is rotatably provided on the trolley 4, and are positioned in a hood 24.
is made to be able to freely swing in the left and right directions by rotation of the support shaft 11, and when the trolley 4 reaches both ends of the guide rail 2, the spray guns 12 and 13 are tilted diagonally sideways from the front and sideways to the outside. As a swing device 14 for swinging, a gear 16 that meshes with a rack 15 is attached to the lower end of the support shaft 11, and a swing cylinder 17 that pushes and pulls the rack 15 to rotate the gear 16.
Further, a positioning pin 18 is fitted into the rear surface of the rack 15 to fix the meshing position between the rack 15 and the gear 16 and maintain the forward and horizontal positions of the spray guns 12 and 13. It is attached to the rod end of the cylinder 19, and the positioning pin 18 is inserted into the back side of the rack 15 when the trolley 4 is moving sideways, so that paint can be sprayed while the spray gun 12 and 13 are held in the front sideways position. . Further, the auxiliary frame 9 provided on the trolley 4 so as to be located on the front side of the guide rail 2 rotatably supports a shaft 22 having a brush 21 attached to the front end so as to be brought into contact with the surface 20 to be painted. At the same time, the chenno sprocket 23 provided at the rear end of the shaft 22 is engaged with the midway part of the chenno 7 passing through the guide rail 2, and the rotational force given to the chenno sprocket 23 when the truck 4 is traveling is transferred to the shaft 22. By rotating the brush 21 by transmitting the information to the brush 21, the paint mist flowing down from the painted area can be removed.

A hose storage hanger 34 for storing the paint hose 33 connected to the spray gun 12, 13 is mounted on the back side of the guide rail 2 on a hanger receiver 35 provided along the lower end of the guide rail 2. and fix one end of the hose storage hanger 34 to the lower end of the trolley 4 and the other end to one end of the hanger receiver 35, respectively, when the trolley 4 moves horizontally along the guide rail 2. In order to enable the hose 33 and the hanger 34 to move following the movement of the vehicle, and to change the traverse stroke of the trolley 4, a pair is placed at arbitrarily set stroke end positions on both the left and right ends. For example, 3 proximity sensors
Groups 25a and 25b.

25c@tJJ, and when the trolley 4 reaches the arbitrarily set stroke end position, the horizontal movement of the trolley 4 is stopped by being detected by the proximity sensor, and at the same time, the spray guns 12 and 13 are oscillated. so that the spraying of paint is stopped.

Furthermore, the guide rail 2 maintains a constant distance between the guide rail 2 and the surface to be painted 20 and prevents the guide rail 2 from shaking during painting work. Anti-sway devices 26 are provided, for example, at both left and right ends. The anti-sway device 26 includes a support plate 28 attached to the front end of a leg stand 27 which is provided so as to protrude back and forth at the lower part of the guide rail 2 so as to be parallel to the guide rail 2, and the support plate 28. A magnet 29 disposed in the center of the plate 28 so as to be movable in the front and back direction;
an adjustment cylinder 30 connected to the back side of the magnet 29 and installed facing the leg stand 27 in the front-back direction in order to push and pull it in the front-back direction; and the support plate 30 located at the four corners around the magnet 29. When each caster 31 is brought into contact with the surface to be painted 20, the magnet 29 is brought close to the surface to be painted 20 and adsorbed in a non-contact state.
It's like being forced to do something (sucking bow).

Hey, the lateral drive of the truck 4, the proximity sensor 25a,
The horizontal stroke by 25b and 25c, the spraying of paint by the spray guns 12 and 13 at two constants, and the stop.
All commands for swinging the spray guns 12 and 13 are sent from a control panel 32 located on the ground.

A flat surface to be painted 2, which is placed vertically, such as painting a ship's side shell.
0 is applied by suspending the idle rail 2 horizontally using the hanging device 1, placing the guide rail 2 opposite the surface 20 to be painted, and bringing each caster 31 of the anti-sway device 26 into contact with the surface 20 to be painted. , and the adjustment cylinder 30 pushes out the magnet 29 to the front side of the support plate 28, and the magnet 29 is attracted to the surface to be painted 20 in a non-contact state with a required gap. As a result, the guide rails 2 are set parallel to the surface 20 to be coated at regular intervals. Next, the motor 8 is driven and, for example, as shown in FIG. 1, the trolley 4 is positioned at the location where the proximity sensor 25a is located on the left side, which is located at the determined stroke end, by moving the cheno 70). In this state, the motor 8 is driven to move the trolley 4 sideways along the guide rail 2 while spraying paint from one spray gun 12 (or 13) forward and sideways onto the surface 20 to be painted. The spray gun 12 paints the paint in a straight line in the left and right direction with the required width, and the trolley 4 reaches the position where the right proximity sensor 25a on the guide rail 2 is installed, as shown by the two-dot chain line in FIG. Then, the moving position of trolley 4 is at the right proximity sensor υ
-25a causes the motor 8 to stop, so the trolley 4 is stopped at the position of the right proximity sensor 25a. At this time, paint is ejected from the spray gun 12 while the cart 4 remains stopped, and the paint is sprayed onto the surface to be painted.
If the spray gun 12 is sprayed at 0.0, the coating film thickness in that area will become thick and uneven, so the spray gun 12 will be
This is to prevent the paint film from increasing in thickness by causing the head to swing. The swing of this spray gun 12 is
When the positioning cylinder 19 reaches the position of the right proximity sensor 25a on the guide rail 2, the positioning cylinder 19 is shortened and the positioning pin 18 is removed from the back side of the rack 15, and at the same time, the swing cylinder 17 is moved as required. The rack 15 is pushed and pulled by being expanded and contracted in the direction, and the gear 16
The spray gun 12 is rotated diagonally outward relative to the IB target surface 20 by rotating the support shaft 11 through a required angle. As a result, when the trolley 4 reaches the set stroke end on the guide rail 2 and stops, the spray gun 12 is automatically swung from the front sideways position to the diagonally outward position to reduce the coating film thickness at one location. In addition, as the trolley 4 moves horizontally, the rotational force received from the engine 7 is applied to the brush 21, which is in contact with the surface 20 to be painted at the lower part of the paint spray section. Since the paint mist is transmitted via the nozzle sprocket 23 and the shaft 22, the paint mist flowing down from the spray part is removed by the brush 21.

When the cart 4 reaches the stroke end on the guide rail 2 and stops as described above, the suspension device 1 is operated to move the guide rail 2 a predetermined distance, that is, to the extent that the painted surface partially erodes. Lower by the amount of movement. At this time, the magnet 29 of the anti-sway device 26 is attracted to the surface to be painted 20 in a non-contact manner, so the guide rail 2 can freely move up and down via the casters 31 on the front surface of the support plate 28. Can be moved and the magnet 2
The suction power of 9 prevents it from shaking and maintains a stable posture.1
- can. When the movement of the guide rail 2 is completed, the swinging of the spray gun 12 is released, and at the same time, the motor 8 is restarted and rotated in the opposite direction from the previous time, and the trolley 4 is moved to the guide rail 2 via the chino 7. The paint is sprayed onto the surface 20 to be painted by the spray gun 12 while moving sideways in the opposite direction. In this way, when the cart 4 reaches the stroke end on the guide rail 2 where the left proximity sensor 25a is installed, the movement position of the cart 4 is detected by the left proximity sensor 25a in the same way as described above. The horizontal movement of the truck 4 is automatically stopped, and at the same time, the spray gun 12 is changed from a forward sideways position to an obliquely outward position.

Thereafter, as described above, the lowering of the guide rail 2 by the suspension device 1 and the reciprocating movement of the cart 4 on the guide rail 2 are performed alternately, so that the coating on the surface 20 to be coated is coated with a uniform coating film thickness. It will be done. In addition, for the surface to be painted 20 such as the ship's side shell plate, different paints are used for painting the outer side portion and painting the main line portion, but in this case, the other spray gun 13 may be used.

In the above, if you want to change the painting range, use the left and right proximity sensors 25b or the left and right proximity hinters 25c.
The painting area can be determined by using a pair of proximity sensors 2
It can be changed between 5b and 25c. or,
The hoses 33 connected to the spray guns 12 and 13 are made to follow the movement of the trolley 4, but are stored in the hose storage hanger 34, and the hanger 34 is received by the hanger receiver 35 and moved, so it is safe. is maintained.

When the series of painting operations described above are completed and the entire apparatus is to be removed, the adjustment cylinder 308 of the anti-sway device 26 is shortened, the magnet 29 is moved away from the surface to be painted 20 to release the adsorption, and then the suspension is removed. This is done by operating the lower device 1.

It should be noted that the present invention is not limited to the above embodiments, and the hanging device 1 for hanging the guide rail 2 may include:
It goes without saying that other than the crane, a hoist, a tow truck, an electric chenoblock, etc. can be used, and that various changes can be made without departing from the gist of the invention.

[Effects of the Invention] As described above, according to the automatic painting apparatus of the present invention, when the guide rail suspended by the hanging device is opposed to the surface to be painted,
It is very easy to set up because the anti-sway device can maintain a constant distance from the surface to be painted, and the paint can be sprayed from the spray gun while the cart is moving horizontally, and the cart can maintain the specified stroke. When the end position is reached, the spray gun can be swung diagonally outward by the oscillating device, so that painting is automatically performed in a straight line in the left and right direction, ensuring uniform coating film thickness. It has the excellent effect of being able to achieve highly accurate painting.

[Brief explanation of drawings]

Fig. 1 is a front view showing an outline of an embodiment of the automatic painting equipment of the present invention, Fig. 2 is an enlarged view of Fig. 1, and Fig. 3 is an enlarged view of Fig. 2, Fig. 2. ■It is an arrow view. 1... Suspension device, 2... Kite rail, 4... Dolly, 8... Motor (traverse drive device), 12.13.
... Spray gun, 14... Oscillating device, 20...
Surface to be painted, 26... anti-sway device, 29... magnet, 31... caster (guide roller).

Claims (1)

[Claims] (1) A spray gun that sprays paint is installed in a horizontal position on a guide rail that extends in the left and right directions and is suspended by a hanging device, and is equipped with a swinging device that swings the spray gun in the left and right directions. A trolley is mounted so as to be able to move freely by a traverse drive device, and a magnet is placed at the bottom of the guide rail to attract the surface to be coated without contacting it, and a magnet is placed around the magnet so as to be in contact with the surface to be coated. 1. An automatic painting device comprising: an anti-swaying device having a guide roller that can be rotated.