JPH06154672A - Automatic painting device - Google Patents

Abstract

PURPOSE:To automatically paint the surfaces to be coated, such as steel plates, without the aid of human power. CONSTITUTION:A traveling truck 3 which travels laterally and longitudinally between blocks 2 of the device for coating the steel plate imposed on the blocks 2 by positioning its surface to be coated downward is provided with a spray device 4 for injecting a coating material from below to the surface to be coated. A rear body 18 is likewise provided with a coating material supplying device for supplying the coating material. This traveling truck 3 is provided with a controller 6 which controls the traveling of the traveling truck 3 by the control signal transmitted from a signal transmitter and is constituted to operate and stop the coating material supplying device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic coating device.

[0002]

2. Description of the Related Art Although the bottom steel plate and the steel plate on the ship side of a hull constructed inside a dog are each coated with the necessary coating,
Of these, the coating on the bottom of the ship must be done in an upward position inside the dock. Conventionally, the coating applied to the bottom of a hull constructed of dogs is mainly done manually by a worker, and the actual situation is that painting is performed using a brush and a simple coating machine.

[0003]

However, as in the conventional method, it is severe for the operator to keep the upward posture for a long time for painting, and the finishing degree is uneven in the coating thickness. There was a problem that is likely to occur.

An object of the present invention is to provide an automatic coating apparatus capable of coating a steel plate such as a ship bottom with a constant quality regardless of human power.

[0005]

In order to achieve the above object, the present invention provides an apparatus for applying a coating to a steel plate or the like placed on a board with the surface to be coated facing downward. A traveling vehicle that travels back and forth between left and right is provided with a spray device that sprays paint from below onto the surface to be coated and a paint supply device that supplies paint to this spray device, and a control signal transmitted from a transmitter A control device configured to control the traveling of the traveling vehicle and to operate and stop the paint supply device is provided.

[0006]

The controller controls the traveling vehicle in the front, rear, left and right directions by the control signal transmitted from the transmitter, and activates and deactivates the paint supply device. Therefore, the coating of the ship bottom can be performed evenly by only the control by the transmitter.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention used for ship bottom coating will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a side view of an automatic coating device according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view of a front wheel drive device and a front wheel steering device of a traveling vehicle, and FIG. Fig. 5 is a cross-sectional view of the rear wheel drive device and the rear wheel steering device of the traveling vehicle.
1 shows a detailed view of part A of FIG. 1, and FIG. 6 shows a detailed view of part B of FIG.

In FIGS. 1 and 2, reference numeral 1 is a ship bottom, and 2 is a board which is arranged at an appropriate interval in order to horizontally mount the hull.

The automatic coating apparatus according to the present invention has a traveling carriage 3 having a low vehicle height and a traveling carriage 3 which can travel freely under the bottom 1 of the ship.
Further, a spray device 4 provided on the ship bottom 1 to spray paint from below, a paint supply device 5 for supplying paint to the spray device 4, and a wireless device (hereinafter referred to as "transmitter") (Fig. The control device 6 is configured to control the traveling carriage 3 forward and backward and to the left and right by a control signal transmitted from a vehicle (not shown), and to operate and stop the paint supply device 5.

First, the traveling carriage 3 will be described.

As shown in FIG. 1, the traveling carriage 3 has front wheels 7 and rear wheels 8 of the traveling carriage 3 so that the traveling carriage 3 can freely change its direction under the bottom 1 of the board 2. It has a drive device for driving, a steering device for independently steering the front wheels 7 and the rear wheels 8, and a hydraulic lifter 9 for switching the traveling direction without traveling the traveling carriage 3. have.

FIG. 3 shows a steering device and a driving device for the front wheels 7, and FIG. 4 shows a steering device and a driving device for the rear wheels 8.

In FIG. 3, the steering system for the front wheels 7 is such that a front wheel steering shaft 11 is vertically and integrally attached to an upper portion of a front wheel axle frame 10 that rotatably supports the front wheels 7, and the front wheel steering shaft 11 is attached to the front wheels. Attach the steering hydraulic motor 12,
By rotating the front wheel steering hydraulic motor 12 forward and backward, the front wheels 7
The orientation of the can be determined slowly and accurately. The drive device for the front wheels 7 includes a base plate 13 attached to the front wheel axle frame 10 and a front wheel axle 1.
4, a front wheel drive hydraulic motor 15 is attached to drive the motor 4.

In FIG. 4, the steering system for the rear wheels 8 has a rear wheel steering shaft 17 mounted vertically and integrally on the upper portion of a rear wheel axle frame 16 which rotatably supports the rear wheels 8, and a rear carriage 8 of the traveling carriage 3 is mounted. The rear wheel steering hydraulic motor 19 is attached to the loading platform 18, and the rear wheel steering hydraulic motor 19 is connected to the drive sprocket 2
0 is attached to the driven sprocket 21 of the rear wheel steering shaft 17, and a power transmission chain (not shown) is endlessly wound around the drive sprocket 20 and the driven sprocket 21 to form a rear wheel steering hydraulic motor 19. Positive
By the reverse rotation, the steering angle of the rear wheel steering shaft 17 is accurately determined. The drive device for the rear wheels 8 includes a base plate (not shown) attached to the rear wheel axle frame 16, a rear wheel drive hydraulic motor 22 integrally attached to the base plate, and the rear wheel drive hydraulic motor 22 being driven. Sprockets 2
3, the driven sprocket 25 for the rear wheel axle 24 is attached, and the drive sprocket 23 and the driven sprocket 25 are attached.
A power transmission chain (not shown) is endlessly wound around, and the forward / reverse rotation of the rear wheel drive hydraulic motor 22 causes
The rear wheel drive shaft 24 is adapted to rotate in the forward and backward directions.

Therefore, the traveling vehicle 3 according to the present invention can be moved back and forth and right and left by using the front and rear wheel driving hydraulic motors 15 and 22 in combination with the front and rear wheel steering hydraulic motors 12 and 19. Like Further, the hydraulic lifter 9 is operated to be raised, then the front wheel and rear wheel steering hydraulic motors 12 and 19 are rotated in the same turning direction by the same angle, and finally the hydraulic lifter 9 is operated to be lowered. By performing the procedure of operating the rear-wheel drive hydraulic motors 15 and 22, it is possible to accurately perform the left-right parallel movement with respect to the traveling direction.

A hydraulic motor 1 for steering these front and rear wheels
2, 19, control means for substantially controlling the front and rear wheel drive hydraulic motors 15, 22 and the hydraulic lifter 9,
As shown in FIG. 2, it is composed of a hydraulic unit 26 installed at a position near the center of the traveling carriage 3. The hydraulic unit 26 includes a hydraulic pressure generator 27, a hydraulic motors 12, 19 for steering front and rear wheels, hydraulic motors 15, 22 for driving front and rear wheels, a hydraulic lifter 9 in addition to the hydraulic pressure generator 27.
Hydraulic circuit connected to each (not shown)
And these hydraulic circuits are provided with switching of the rotation directions of the front and rear wheel steering hydraulic motors 12 and 19, speed control (speed switching) of the front and rear wheel driving hydraulic motors 15 and 22, and the hydraulic lifter 9. It is composed of an electromagnetic directional control valve (for example, a 4-port 3-position switching solenoid valve) (not shown) that performs expansion / contraction switching. It is needless to say that each of the above hydraulic circuits is provided with a valve (for example, a flow control valve, a relief valve, a check valve, a timer, etc.) necessary for configuring the hydraulic circuit.

Next, the coating device will be described with reference to FIGS.

In FIG. 5, 28 is a fixed beam, and 29 is a traversing beam mounted along the fixed beam 28 so as to be movable in the vehicle width direction.

The fixed beam 28 is formed by welding a U-shaped beam 30 and an H-shaped beam 31 which are cut into a length substantially equal to the width dimension of the loading platform 18 back to back, and the U-shaped beam 30 is welded to the vehicle. After laying along the width direction, it is fixed to the luggage carrier 18 by welding. The fixed beam 28 includes
An angle-shaped first bed 32 for supporting the load of the transverse beam 29 and guiding the transverse beam 29 in the vehicle width direction is attached to the upper surface of the H-shaped beam 31, and the side surface of the spray device 4 is attached. An angle-shaped second for supporting the load and guiding the spray device 4 in the vehicle width direction.
The bed 33 is attached.

The transverse beam 29 is the U-shaped beam 30 described above.
A U-shaped beam body 34 that is wider and is cut to a length equivalent to the width dimension of the loading platform 18, and the beam body 34 is guided to the lower surface of the beam body 34 so as to be movable in the longitudinal direction of the first bed 32. Therefore, it is rotatable about the horizontal axis and the first
The wheel 35 is rotatably engaged with the bed 32. The wheel 35 has a V groove 36 that engages with the first bed 32 on the outer peripheral portion thereof. Specifically, the wheels 35 are rotatably attached to the U-shaped brackets 37 provided on the lower surface of the beam main body 34 at intervals in the longitudinal direction thereof. Further, in the transverse beam 29, a pressing roller 40 formed so as to engage with the lower flange 39 of the H-shaped beam 31 is attached to a bracket 38 attached to the side portion of the transverse beam 29 in order to restrict the lateral deflection thereof. It is installed. Further, the bracket 38 has an H
The pressing bearing 42 is attached so as to abut the lower surface of the upper flange 41 of the shaped beam 31.

Further, at both ends of the transverse beam 29, as shown in FIG.
As shown in, the proximity sensor 43 is attached so that a detection signal is generated when the end of the traverse beam 29 approaches a certain distance with respect to the board 2 and the like. A traverse beam detecting relay switch (not shown) is attached so that the traverse beam 29 is switched at the folding position.

The means for reciprocating the traverse beam 29 is, as shown in FIG. 5 or FIG. 6, a traverse beam drive motor 44 integrally installed on the platform 18 and the traverse beam drive motor 44. A drive sprocket shaft 47 coaxially connected to the motor shaft 45 via a joint 46;
A block for rotatably supporting the drive sprocket shaft 47 on the loading platform 18, and a bearing block portion 49 extending to the left and right of the drive sprocket shaft 47 (see FIG. 6). , A bearing block 48 (see FIG. 6) to which two driven sprocket shafts 50 are mounted in parallel with the drive sprocket shaft 47, and chain connecting brackets 51 integrally provided at both ends of the beam body 34 (see FIG. 5). ), And a power transmission chain 54 which is wound around the drive sprocket 52 of the drive sprocket shaft 47 and the driven sprocket 53 of the driven sprocket shaft 50, and both ends of which are connected to the chain connecting bracket 51, respectively. , By rotating the traverse beam drive motor 44 to the right, the beam body 34 is moved to the right and turned counterclockwise. By rotating the is adapted to be moved a beam body 34 to the left.

As shown in FIGS. 5 and 6, the spray device 4 includes a spray gun 55 for spraying a paint having a constant pressure toward the bottom 1 of the ship, and a paint spraying from the spray gun 55 surrounding the spray gun 55. 56 for restricting the spread of the spray to a constant width and length, a spray base 57 that constitutes the bottom of the cover 56, and a roller device 58 for smoothly moving the spray base 57 along the traverse beam 29. It consists of and.

As shown in FIG. 5, the roller device 58 has roller mounting shafts 59 mounted vertically and vertically on both sides in the moving direction of the spray table 57, and is rotated about each vertical shaft on each roller mounting shaft 59. The guide roller 60 is freely attached, and the guide roller 60 is the wheel 3
Similarly to the No. 5, the V-groove 61 engaging with the second bed 33 is provided on the outer peripheral portion thereof.

The means for reciprocating the spray table 57 is, as shown in FIGS. 5 to 6, a spray table driving motor 62 integrally installed on the cargo bed 18, and a motor for the spray table driving motor 62. A drive sprocket shaft 64 integrally connected to the shaft 63, a bearing block 66 disposed on a side of the drive sprocket shaft 64 and having a driven sprocket shaft 65, and a chain connection attached to both ends of the spray table 57, respectively. Bracket 67 (Fig. 5
) And a drive sprocket 68 of the drive sprocket shaft 64 and a driven sprocket 69 of a driven sprocket shaft 65, and both ends thereof are respectively connected to a chain connecting bracket 67.
0, and the spray table driving motor 62 is rotated to the right to move the spray table 57 to the right, and the spray table driving motor 62 is rotated to the left to rotate the spray table 57. It is designed to move to the left.

The beam main body 34 has a spray table 5 attached thereto.
A spray table detecting relay switch (not shown) is attached to the left and right folding positions of 7 so as to be switched by the traverse beam 29.

As shown in FIG. 2, the paint supply device 5 for supplying the paint of a constant pressure to the spray gun 55, as shown in FIG.
8 and a compressor 72 for sucking the paint from the paint tank 71 by the negative pressure of the pressurized air and atomizing the paint by the negative pressure to supply the paint to the spray gun 55. , A paint supply pipe (not shown) connecting the spray gun 55 and the compressor 72, and a negative pressure pipe (not shown) connecting the paint supply pipe and the paint tank 71.
A negative suction pressure is applied to the negative pressure pipe by the negative pressure of the pressurized air supplied from the paint supply pipe to the paint in the paint tank 71 at the same time as it is atomized and ejected from the spray gun 55.

As shown in FIG. 5, a vibration sensor (ultrasonic sensor) 73 is attached to the spray gun 55 at the base end thereof to detect the vibration of the paint spray supplied to the spray gun 55. There is.

The automatic control device 6 includes a detection value of the vibration sensor 73, a micro switch ON-OFF signal for transverse beam detection, a micro switch ON-OFF signal for spray table detection, an ON-OFF signal of the proximity sensor 43, and a transmitter. An input unit (not shown) that receives a control signal (transmission signal), electrically processes the input signal input from this input unit, and hydraulically operates the hydraulic unit 26, the traverse beam drive motor 44, and the spray table drive motor. 62 and a control section (not shown) for electrically controlling the compressor 72.

The control unit operates the engine type generator 74 and the hydraulic pressure generator mounted on the traveling vehicle 3 by turning on the start switch (not shown) of the transmitter. Then, thereafter, the following control is executed in response to the selection of the manual button (not shown) of the manual mode / automatic coating mode of the transmitter.

Manual mode ... This manual mode is a mode executed when the manual button of the transmitter is turned on. After the manual mode is selected, the control unit operates the hydraulic unit 26, the traverse beam drive motor 44, the spray table drive motor 62, and the compressor 72 by operating various operation switches (not shown) of the transmitter that are enabled. It works as follows.

(Forward control of the traveling vehicle 3) When a forward button (not shown) of the transmitter is turned on, the control section controls the front wheel drive hydraulic motor 15 and the rear wheel drive of the hydraulic circuit of the hydraulic unit 26. The electromagnetic directional control valve of the hydraulic circuit that drives the hydraulic motor 22 is switched to a circuit that rotates the front wheel driving hydraulic motor 15 and the rear wheel driving hydraulic motor 22 forward, respectively, and the traveling carriage 3 is moved forward.

(Reverse Control of Traveling Carriage 3) When a reverse button (not shown) of the transmitter is turned on, the control unit controls the front wheel drive hydraulic motor 15 and the rear wheel drive of the hydraulic circuit of the hydraulic unit 26. The electromagnetic directional control valve of the hydraulic circuit for driving the hydraulic motor 22 is switched to a circuit for rotating the front wheel driving hydraulic motor 15 and the rear wheel driving hydraulic motor 22 backward, respectively, and the traveling carriage 3 is moved backward.

(Right Steering Control of Traveling Vehicle 3) When a right turn button (not shown) of the transmitter is turned on, the control unit causes the front wheel steering hydraulic motor 1 in the hydraulic circuit of the hydraulic unit 26 to operate.
2 and the electromagnetic directional control valve of the hydraulic circuit for driving the rear wheel steering motor 19 are switched to the circuits for rotating the front wheel steering motor 12 and the rear wheel steering hydraulic motor 19 to the right, respectively, so that the traveling vehicle 3 turns right. to enable.

(Left Steering Control of Traveling Vehicle 3) When a left turn button (not shown) of the transmitter is turned on, the control unit causes the front wheel steering hydraulic motor 1 in the hydraulic circuit of the hydraulic unit 26 to operate.
2 and the electromagnetic directional control valve of the hydraulic circuit for driving the rear wheel steering motor 19 is switched to a circuit for rotating the front wheel steering motor 12 and the rear wheel steering hydraulic motor 19 to the right, respectively, so that the traveling carriage 3 can turn left. To

(Control of Lifting of Traveling Vehicle 3) When a lifter lifting button (not shown) of the transmitter is turned on, the control unit causes the electromagnetic circuit of the hydraulic circuit of the hydraulic unit 26 to lift and lower the hydraulic lifter 9. The direction control valve is switched to a circuit for raising the hydraulic lifter 9 to raise the traveling carriage 3 to a predetermined height.

(Descent control of the traveling carriage 3) When a lifter down button (not shown) of the transmitter is turned on, the control section causes the electromagnetic circuit of the hydraulic circuit of the hydraulic unit 26 to move the hydraulic lifter 9 up and down. The directional control valve is switched to a circuit for lowering the hydraulic lifter 9 to land the traveling carriage 3 on the ground.

(Paint control) Coating start button (not shown)
When is turned on, the control unit activates the compressor 72 to eject the paint in the paint tank from the spray gun 55. At this time, when the value detected by the vibration sensor 72 matches the vibration immediately before the paint deficiency, the control unit stops the compressor 72 and controls the switching of the electromagnetic directional control valve to supply the hydraulic pressure to various hydraulic circuits. Cut off.

(Travel control of spray device 4) When the spray traverse button (not shown) is turned on, the control unit
First, the spray table driving motor 62 is rotated clockwise, and the spray table 57 is traversed to the right side until the spray table detecting relay switch on the right side is input. When the spray table detection relay switch on the right side is switched by the spray table 57, the spray table drive motor 62 is rotated in the reverse direction until the spray table 57 is input from the spray table detection relay switch on the left side. Traverse to the left. When the spray table detection relay switch on the left side is switched by the spray table 57, the spray table drive motor 62 is rotated again in the clockwise direction. In this way, the control unit horizontally traverses the spray table until the spray traverse button is switched to OFF.

(Travel control of traverse beam 29) When a traverse beam traverse button (not shown) is turned on, the control section first rotates the spray table drive motor 62 for driving the spray table 57 in the clockwise direction, The spray table 57 is moved to the right until the relay switch for spray table detection on the right side is input. When the spray stand detection relay switch on the right side is switched by the spray stand 57, the controller 6
Stops the spray table drive motor 62 at that position and rotates only the transverse beam drive motor 44 clockwise until the transverse beam detection sensor on the left side is switched to traverse the transverse beam 29 to the right. . When the traverse beam detection sensor on the left side is switched, the control device 6 then causes the spray table drive motor 62 to rotate in the reverse direction until the spray table detection relay switch on the right side receives an input, thereby moving the spray table 57 to the left side. Incline to. After the spray table detection relay switch on the right side again stops the spray table drive motor 62, the transverse beam drive motor 44 is rotated counterclockwise until the transverse beam detection sensor on the right side is switched, and the traverse beam detection motor is rotated. Traverse 29 to the left. As described above, the control unit repeatedly performs control for horizontally traversing the spray table 57 until the traverse beam traverse button is switched to OFF. During this control, the proximity switches at both ends of the beam main body 34 are turned into a board. Two
When such a position is detected, the transverse beam 29 is stopped at that position, and the stop position is stored as the turn-back position.

Automatic painting control mode: This mode is selected after the traveling carriage 3 is positioned at the painting start position of the ship bottom 1 in the manual mode, and is executed by turning on the automatic painting control button (not shown). It is a mode to do.

(Step 1) The control section first sets the electromagnetic directional control valves of the hydraulic circuits for driving the front wheel drive hydraulic motor 15 and the rear wheel drive hydraulic motor 19 in the hydraulic circuit of the hydraulic unit 26 for front wheel drive, respectively. The hydraulic motor 15 and the hydraulic drive motor 19 for driving the rear wheels are switched to a circuit for forward rotation, and the traveling carriage 3 is first advanced by a distance slightly narrower than the spray width of the spray device 4.

(Step 2) After the forward movement, the spray table driving motor 62 is first rotated clockwise, and the spray table 5 is rotated until the relay switch for spray table detection on the right side is input.
Traverse 7 to the right. When the spray table detection relay switch on the right side is switched by the spray table 57, the control device 6 causes the spray table drive motor 6 to move at that position.
After stopping No. 2, the traverse beam drive motor 44 is rotated clockwise until the traverse beam detection sensor on the left side is switched, and the traverse beam 29 is traversed to the right side.

(Step 3) When the right side traverse beam detecting sensor is switched, the control device 6 now
The compressor 72 is started to eject the paint from the paint tank 71 from the spray gun 55, and the spray table drive motor 62 is reversely rotated until the spray table detection relay switch on the left side is switched to traverse the spray table 57 to the left. Let When the left spray table detection relay switch is switched, the control device 6 stops only the spray table drive motor 62 and keeps the compressor 72 activated until the right transverse beam detection sensor is switched. Then, the traverse beam drive motor 44 is rotated counterclockwise to traverse the traverse beam 29 to the left.

Therefore, the bottom of the ship 1 is coated in a strip shape with the paint sprayed from the spray gun 55.

(Step 4) The traveling carriage 3 is moved forward as in Step 1.

(Step 5) After the forward movement, the control device 6 stops the spray table driving motor 62 and restarts the operation of the compressor 72, and switches the traverse beam driving motor 44 to the left traverse beam detecting relay switch. And the transverse beam 29 is traversed to the right. When the traverse beam detection relay switch on the left side is switched, the compressor 72 is operated until the spray table detection relay switch on the right side is switched, and the spray table drive motor 62 is rotated clockwise.

As a result, the coating width applied to the bottom 1 of the ship is increased by the forward distance of the traveling carriage 3.

(Step 6) The traveling carriage 3 is moved forward as in Step 1.

(Step 7) After the forward movement, the control device 6 keeps the spray table drive motor 62 stopped, keeps the compressor 72 activated, and switches the traverse beam drive motor until the traverse beam detection relay switch on the right side is switched. 44
Is rotated counterclockwise to traverse the traversing beam 29 to the left. When the traverse beam detection relay switch on the right side is switched, the compressor 72 is operated while the compressor 72 is operating until the spray table detection relay switch on the left side is switched, and the spray table drive motor 62 is rotated counterclockwise. Rotate.

As a result, the coating work width is further increased by the forward distance of the traveling carriage 3.

(Step 8) Steps 5 to 7 are repeated.

By repeating Step 5 to Step 7, the construction area for painting the ship bottom 1 increases with each forward movement of the traveling carriage 3.

As described above, in the control device according to the present invention, when the value detected by the vibration sensor 73 matches the vibration immediately before the paint deficiency, the compressor 72 is stopped and the electromagnetic directional control valve is switched to control various hydraulic pressures. When the supply of hydraulic pressure to the circuit is cut off, and when the proximity sensors 43 at both ends of the spray stand 57 detect the board 2 or the like, the traverse beam 29 is located at that position.
Is stopped, the stop position is stored as a turn-back position, and the next control is prospered. If the traverse beam 34 is not provided, the proximity sensor 43
It is of course possible to provide the same at both ends of the spray table 57 in the vehicle width direction like the traverse beam 34, but from the viewpoint of improving reliability, the proximity sensors 43 are provided on both the traverse beam 34 and the spray table 57. It may be provided.

Therefore, the automatic coating apparatus according to the present invention, unlike the conventional case, does not use a brush under the bottom 1 of the vessel, but operates a transmitter and only monitors the coating state to achieve high-quality coating without uneven coating. 1 can be applied. Further, by combining this with the traverse of the spray device 4 and the traverse of the traverse beam 34, the coating efficiency is dramatically improved, and further, by providing the proximity sensors 43 at both ends of the traverse beam 34, the traverse beam 34 is made into a board. Etc. to prevent collision,
Achieves automatic painting like sewing between boards. A vibration sensor 73 is attached to the spray gun 55 to detect the vibration of the paint spray supplied to the spray gun 55, and when the detected value matches the vibration immediately before the paint shortage, the compressor 72 is stopped and the spray device 4 The operator is urged to replenish the paint by stopping the traverse of the traverse beam 34 and the forward movement of the traveling carriage 3 to completely eliminate coating defects and coating unevenness due to insufficient paint during automatic coating. In this case, it is of course possible that the operator can grasp the situation immediately by using various lamps and buzzers. Further, the paint supply device 5, the engine power generation device 74, and the hydraulic pressure generation device 27 can all be mounted on the traveling carriage 3 to prevent damage and disconnection of the electric system, hydraulic system, and air system,
The reliability of automatic painting can be maintained for a long time.

Therefore, the automatic coating apparatus according to the present invention can perform high quality coating at low cost.

[0058]

As is clear from the above description, the present invention exhibits the following excellent effects.

(1) According to the first aspect of the present invention, it is possible to perform automatic coating evenly on a surface to be coated such as a steel plate by remote control.

(2) According to the second aspect of the invention, it is possible to eliminate the failure of automatic coating due to the paint being run out.

(3) According to the third aspect of the invention, it is possible to perform automatic painting of a large area at a time in the traveling direction of the traveling carriage.

(4) According to the invention described in claim 4, not only can a wider area be coated, but also automatic coating can be safely performed up to the vicinity of an obstacle such as a board.

[Brief description of drawings]

FIG. 1 is a side view of an automatic coating device according to the present invention.

FIG. 2 is a plan view of an automatic coating device according to the present invention.

FIG. 3 is a cross-sectional view of a front wheel drive device and a front wheel steering device of a traveling vehicle according to the present invention.

FIG. 4 is a cross-sectional view of a rear wheel drive system and a rear wheel steering system of a traveling vehicle according to the present invention.

FIG. 5 is a detailed view of a portion A in FIG.

FIG. 6 is a detailed view of a B part in FIG.

[Explanation of symbols]

 2 Board 3 Traveling trolley 4 Spray device 5 Paint supply device 6 Control device 18 Platform

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Murakami 2-1, Showamachi, Kure City, Hiroshima Prefecture Ishikawajima Harima Heavy Industries Co., Ltd. Kure Daiichi Factory

Claims (4)

[Claims] 1. A device for applying a coating to a steel plate or the like placed on a board with the surface to be coated facing downward, wherein a traveling carriage that travels back and forth between the boards is provided with the surface to be coated. A spray device for spraying paint from below and a paint supply device for supplying paint to the spray device are provided, and the traveling carriage is controlled by the control signal transmitted from the transmitter, and the paint supply device is operated / stopped. An automatic coating device, which is provided with a control device configured to. 2. A sensor is attached to the spray device of the spray device to detect vibration of the paint spray part,
The control device is configured to stop the traveling of the traveling carriage and stop the paint supply of the paint supply device when the detection value of the sensor matches the vibration value immediately before the paint shortage. Automatic painting equipment. 3. The automatic system according to claim 1, wherein the spray device is provided on a bed of the traveling cart so as to traverse in a vehicle width direction, and the control device is configured to traverse the spray device. Coating equipment. 4. The traveling carriage has a traverse rail for extending the traverse distance of the spray device outwardly in the vehicle width direction of the cargo carriage on the carrier, and the traversing rail or a vehicle of the spray device. Proximity sensors are attached to both ends in the width direction to detect obstacles such as the board, and the control device stops the traverse rail at that position when the sensor detects an obstacle such as the board. The automatic coating apparatus according to claim 1 or 2, wherein the stop position is a cross rail or a folding position of the spray device.