JP2850420B2 - Automatic coating equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic coating apparatus used for automatically coating a vertically flat surface to be coated, such as a coating on a ship outer panel. .

[Prior art] For example, a hull outer panel of a hull constructed in a dock is coated on a bottom panel, and a hull outer panel includes a hull portion or a wave which is always in contact with air. However, it is necessary to apply a coating suitable for the navigation environment conditions to such a water line part.

2. Description of the Related Art Conventionally, an automatic painting apparatus has been used for painting a ship-side outer panel of a hull constructed by a dock, since it is necessary to paint the outer part and the water line part in parallel in a horizontal direction.

[Problems to be Solved by the Invention] However, in the case of the above-mentioned conventional automatic coating apparatus, in order to maintain a constant interval with the ship side outer plate, which is the surface to be coated, a heavy structure and heavy equipment are required. Inevitably, it was very troublesome to set the unit so that it was kept close to the ship's outer panel and kept at a constant interval.

Therefore, the present invention is to make it possible to easily set a vertically oriented surface to be coated and to perform accurate coating.

Means for Solving the Problems In order to solve the above problems, the present invention provides a spray gun for ejecting paint on a guide rail extending in the left-right direction suspended by a suspension device in a lateral posture. A trolley equipped with a swinging device for swinging the spray gun in the left-right direction is installed and traversed by a traversing drive device, and is sucked at the lower part of the guide rail without contacting the surface to be coated. A brush provided with an anti-swing device having a magnet and a guide roller disposed at a position around the magnet and brought into contact with the surface to be coated, and further provided at a lower portion of the carriage so as to make contact with the surface to be coated. Is configured to rotatably support a shaft attached to the front end.

[Operation] When a guide rail suspended by a suspension device is opposed to a vertically flat flat surface to be coated such as a ship-side outer panel,
Since the magnet of the anti-swing device is attracted (sucked) in a non-contact manner, the guide rail can be held at a constant interval with respect to the surface to be coated. Therefore,
When the paint is sprayed from the spray gun while the trolley is traversing along the guide rail, the paint is automatically and linearly applied. Also, at this time, when the bogie is at the stroke end, the spray gun can be swung obliquely outward by the oscillating device, so that the coating film thickness can be prevented from being partially thickened. In addition, since the paint mist flowing down from the paint spraying portion is removed by the brush at the lower part of the truck, it is possible to prevent the coating unevenness due to the paint mist adhesion.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention.
On a guide rail 2 having a C-shaped cross section which extends horizontally in the left-right direction and which is suspended by a suspension device 1 such as a crane, the guide rail 2 rolls along the upper surface, the front surface, and the rear surface of the guide rail 2. The trolley 4 via the guide wheel 3
Are mounted so as to be able to traverse in the left-right direction, and chain sprockets 5 and 6 are rotatably attached to both ends in the guide rail 2, and a chain 7 is endlessly looped between the chain sprockets 5 and 6. And the chain sprocket 5,
A motor 8 as a bogie traversing drive device is connected to one of the six (the chain sprocket 6 in this embodiment), and further, an intermediate portion of the chain 7 is connected to an auxiliary frame 9 provided on the bogie 4, By driving the motor 8, the chain 7 is moved between the chain sprockets 5 and 6 so that the carriage 4 can move freely on the guide rail 2. The lower end of the auxiliary frame 9 extends from the lower end of the bogie 4 to the lower surface of the guide rail 2 through the front surface of the guide rail 2, and the lower end of the guide rail 2
An auxiliary guide wheel 10 adapted to roll along the lower surface of the vehicle is mounted.

On the carriage 4, upper and lower spray guns 12 and 13 are mounted on a rotatable support shaft 11 in a horizontal position and positioned in a hood 24, and the spray guns 12 and 13 are mounted on the support shaft 1.
By turning 1 you can swing right and left,
And a lower end of the support shaft 11 as a oscillating device 14 for oscillating the spray guns 12 and 13 obliquely from the front side to the outside when the carriage 4 reaches both ends of the guide rail 2. Gear 16 that meshes with the rack 15
Is mounted, and a swing cylinder 17 for rotating the gear 16 by pushing and pulling the rack 15 is provided.Furthermore, the meshing position of the rack 15 and the gear 16 is fixed by being fitted into the rear portion of the rack 15 and Positioning pins 18 for holding the spray guns 12 and 13 at the front sideways position are attached to the rod ends of the positioning cylinders 19, and when the carriage 4 is traversing, the positioning pins 18 are inserted into the back of the rack 15 to The paint is sprayed in a state in which 13 is held in the front sideways position. A brush for bringing the auxiliary frame 9 provided on the carriage 4 so as to be located on the front side of the guide rail 2 into contact with the surface to be coated 20.
A shaft 22 having a front end 21 is rotatably supported, and a chain sprocket 23 provided at a rear end of the shaft 22 is engaged with an intermediate portion of the chain 7 passing through the guide rail 2 so that the carriage 4 At this time, the rotational force given to the chain sprocket 23 is transmitted to the shaft 22 to rotate the brush 21 so that the mist of the paint flowing down from the coating location can be removed.

On the back of the guide rail 2, the spray gun
A hose storage hanger 34 for storing a paint hose 33 connected to the hoses 12 and 13 is disposed on a hanger receiver 35 provided along the lower end of the guide rail 2, and the hose storage hanger is provided.
One end of 34 is fixed to the lower end of the trolley 4, and the other end is fixed to one end of the hanger receiver 35.
The hose 33 and the hanger 34 can follow and move together when traversing in the left and right direction along the trajectory. At the position, for example, three sets 25a, 25b, 25c are provided as a pair of proximity sensors, and when the carriage 4 reaches an arbitrarily set stroke end position, the proximity sensor detects the proximity sensor. At the same time as the carriage 4 is stopped, the spray guns 12 and 13 are swung so that the spraying of the paint is stopped.

Further, the guide rail 2 is provided with an anti-sway device 26 for keeping the distance between the guide rail 2 and the surface to be coated 20 constant and preventing the guide rail 2 from shaking during the painting operation, for example, Provided at both left and right ends. The anti-swing device 26 is provided at the front end of a footrest 27 which is provided so as to project back and forth below the guide rail 2.
A support plate 28 attached so as to be parallel to the magnet, a magnet 29 disposed at the center of the support plate 28 so as to be movable in the front-rear direction, and a back surface of the magnet 29 for pushing and pulling the magnet 29 in the front-rear direction. An adjusting cylinder 30 connected to the base and installed on the footrest 27 in the front-rear direction, and a caster 31 which is a guide roller attached to the support plate 28 so as to be located at four corners around the magnet 29, When each caster 31 is brought into contact with the surface 20 to be coated, the magnet 29 is brought close to the surface 20 to be coated so as to be attracted (sucked) in a non-contact state.

In addition, the traversing drive of the carriage 4, the proximity sensors 25a, 25b,
Commands such as the setting of the traverse stroke by 25c, the spraying and stopping of the paint by the spray guns 12, 13 and the swinging of the spray guns 12, 13 are all sent from the control panel 32 disposed on the ground.

A flat surface to be painted placed vertically like the paint on the ship's outer panel
When the coating 20 is performed, the guide rail 2 is hung horizontally by the suspension device 1 so that the guide rail 2 faces the surface 20 to be coated, and each caster 31 of the anti-swing device 26 is brought into contact with the surface 20 to be coated. The magnet 29 is pushed out to the front side of the support plate 28 by the adjusting cylinder 30, and the magnet 29 is attracted to the surface 20 to be coated in a non-contact state with a required gap. As a result, the guide rails 2 are set in parallel to the surface to be coated 20 at regular intervals. Next, the motor 8
, The cart 4 is positioned via the movement of the chain 7 to the installation portion of the proximity sensor 25a on the left side located at the determined stroke end, as shown in FIG. 1, for example.
In this state, one of the spray guns 12 is driven while driving the motor 8 to move the carriage 4 along the guide rail 2.
(Or 13) Spray paint forward and sideways to paint
Spray 20. The trolley 4 reaches the position where the proximity sensor 25a on the right side of the guide rail 2 is installed on the guide rail 2 as shown by a two-dot chain line in FIG. Then, the motor 8 is stopped by detecting the moving position of the carriage 4 by the right proximity sensor 25a, so that the carriage 4 is stopped at the position of the right proximity sensor 25a. At this time, when the paint is ejected from the spray gun 12 and sprayed on the surface to be coated 20 while the carriage 4 is stopped, the coating film thickness at that portion becomes thick and non-uniform. The swinging device 14 swings to prevent the coating film thickness from increasing. The swing of this spray gun 12 is
When the carriage 4 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 detached from the back of the rack 15, and at the same time, the swing cylinder 17 is moved. Is extended and retracted in the required direction, the rack 15 is pushed and pulled, and the support shaft 11 is rotated through the gear 16 by the required angle, so that the spray gun
This is performed by rotating the surface 12 obliquely outward with respect to the surface 20 to be coated. As a result, when the carriage 4 comes to 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 obliquely outward position, and the coating film thickness at one location is changed. Is prevented from becoming thick. In addition, the brush 21 which is in contact with the surface 20 to be coated at a lower position of the paint spraying part with the traversing of the carriage 4.
In addition, the rotational force received from the chain 7
The paint mist that has flowed down from the paint spraying section is removed by the brush 21. Therefore, it is possible to prevent uneven coating due to adhesion of paint mist.

When the carriage 4 comes to the stroke end on the guide rail 2 and stops as described above, the guide rail 2 is then moved by a predetermined distance by operating the suspension device 1, that is, until the painted surface partially wraps. Lower by amount. At this time, since the magnet 29 of the anti-swing device 26 is attracted to the surface to be coated 20 in a non-contact state, the guide rail 2 is supported by the support plate.
It is possible to move freely in the vertical direction via the casters 31 on the front surface of the magnet 28, and it is possible to maintain a stable posture 4 by being prevented from swinging by the attraction force of the magnet 29. When the movement of the guide rail 2 is completed, the swing of the spray gun 12 is released, and at the same time, the motor 8 is restarted and driven to rotate in the opposite direction to the previous one, so that the carriage 4 is moved to the guide rail 2 via the chain 7. The paint is sprayed on the surface to be coated 20 by the spray gun 12 while traversing in the opposite direction. When the carriage 4 comes to the stroke end where the left proximity sensor 25a on the guide rail 2 is installed in this way, the movement position of the carriage 4 is detected by the left proximity sensor 25a as described above. At the same time, the trolley 4 is automatically stopped from moving in the horizontal direction, and at the same time, the spray gun 12 is changed from the front sideways posture to the obliquely outward posture.

Thereafter, as described above, the guide rail 2
And the carriage 4 reciprocate on the guide rail 2 are alternately performed, and the coating on the surface to be coated 20 is performed with a uniform coating film thickness. On the surface 20 to be coated, such as a ship-side outer panel, the paint used for the outer part and the water line part are different from each other. In this case, the other spray gun 13 may be used.

In the above description, when it is desired to change the coating range, the left and right proximity sensors 25b or the left and right proximity sensors 25c are used to set the coating range to one set of proximity sensors 25b.
Or between 25c. The hose 33 connected to the spray guns 12 and 13 is caused to follow the movement of the carriage 4, but is stored in the hose storage hanger 34, and the hanger 34 is received by the hanger receiver 35 and moves. , Are kept safe.

When the above-described series of painting operations is completed and the entire device is to be removed, the adjusting cylinder 30 of the anti-swing device 26 is shortened, and the magnet 29 is released from the surface 20 to be coated, thereby releasing the suction. The operation is performed by operating the suspension device 1.

Note that the present invention is not limited to the above-described embodiment only. In addition to the crane, a hoist, a tow truck, an electric chain block, or the like can be used as the suspension device 1 for suspending the guide rail 2. It goes without saying that various changes can be made without departing from the spirit of the present invention.

[Effects of the Invention] As described above, according to the automatic coating device of the present invention, when the guide rail suspended by the suspension device is opposed to the surface to be coated, the anti-sway device keeps the distance to the surface to be coated constant. It can be set very easily, and sprays paint from the spray gun when the trolley is traversing, and when the trolley reaches the predetermined stroke end position, the spray gun is turned by the swinging device. Because it can be swung diagonally outward, painting is automatically performed in a straight line in the left and right direction, making it possible to achieve uniform coating film thickness, and spraying paint with a brush provided at the bottom of the cart The paint mist that has flowed down from the part can be removed, which prevents coating unevenness due to paint mist adhesion and achieves highly accurate coating. It is effective.

[Brief description of the drawings]

FIG. 1 is a front view showing an outline of an embodiment of the automatic coating apparatus of the present invention, FIG. 2 is an enlarged view taken along the line II-II of FIG. 1, and FIG. 3 is a view taken along the line III-III of FIG. FIG. DESCRIPTION OF SYMBOLS 1 ... Hanging device, 2 ... Guide rail, 4 ... Dolly, 8
…… Motor (traversing drive device), 12,13 …… Spray gun, 14 …… Swing device, 20 …… Coated surface, 21 …… Brush, 22 …… Shaft, 26 …… Sway prevention device, 29… ... magnets, 31 ... casters (guide rollers).

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Kazuhisa Handa 2-1 Showa-cho, Kure-shi, Hiroshima Pref. Ishikawajima-Harima Heavy Industries Co., Ltd. Kure Daiichi Plant (56) References JP-A-63-80870 (JP, A) Japanese Utility Model Showa 48-23647 (JP, U) Japanese Utility Model Showa 52-63177 (JP, U) Japanese Utility Model Showa 61-87560 (JP, U) Japanese Patent Publication 46-32350 (JP, B1) Japanese Patent Publication 44-9587 (JP, B1) (58) Field surveyed (Int. Cl. ⁶ , DB name) B05B 13/00-13/04

Claims (1)

(57) [Claims] 1. A swinging device for installing a spray gun for ejecting paint in a horizontal position on a guide rail extending in the left and right direction suspended by a suspension device and swinging the spray gun in the left and right direction. A trolley equipped with a traverse drive device is mounted so as to be able to traverse freely, and a magnet to be attracted to the surface to be coated in a non-contact manner at the lower part of the guide rail, and a magnet arranged at a position around the magnet on the surface to be coated It is provided with an anti-swing device having a guide roller to be brought into contact, and further, a shaft attached to a front end of a brush to be brought into contact with a surface to be coated is rotatably supported at a lower portion of the carriage. Automatic coating equipment characterized by the following.