KR20090090569A - Painting apparatus of a hull - Google Patents

Abstract

An apparatus for painting a hull is provided to enhance the space of spray pattern which is formed sequentially and reduce the frequency of overlap between spray patterns. An apparatus (100) for painting a hull comprises: a first guide (110) which is installed at the side of hull; a first transfer body (120) which is installed at the first guide; a first transfer unit (130) which transfers the first transfer; a second guide (140) which is installed at the first transfer body; a second transfer body (150) in which spray gun is installed ; and a second transfer unit (160) which transfers the second transfer body.

Description

Painting apparatus of a hull}

The present invention relates to a hull coating device that enables to improve the painting speed, area and quality of the coating film while implementing the same painting process as the working conditions and spray patterns painted by the painter.

In general, when a large ship is to be hull-painted in a dry dock, two workers on a vehicle work in pairs, one spraying and the other spraying speed. In line with the above, the sprayer is sprayed by moving the boom up, down, left and right using the joystick of the operation panel installed in the vehicle.

As a related art related to the apparatus for painting the hull as described above, the "Hull shell coating work system and coating method" of the Republic of Korea Patent Application No. 2006-0040946 is a worker who works on the aerial paint spraying of the shell shell in a dry dock Even if it is not carried out one by one, it is to facilitate the painting work according to the section movement of the articulated painting robot mounted on the vertical lifter of the traveling device.

In addition, as a related art related to a robot for painting a block forming a hull, "Painting method by calculating the optimal stroke number of the coating robot" of the Republic of Korea Patent Application No. 2006-0103071 is to perform the painting work in a limited space inside the hull block By calculating the spraying distance of the spray nozzle, the effective pattern, and the moving speed of the spray gun of the painting robot, the minimum stroke number of the spray gun of the painting robot is obtained so that the optimal number of strokes of the painting robot can be performed more quickly and precisely. The method of painting by calculation is presented.

As the prior art as described above, "the hull shell coating work system and the painting work method" as shown in Figure 1, it is repeated in the hull up and down in the hull to perform the spraying work without spaces, first sprayed section and newly Rotating the wrist to smooth the treatment in the sprayed area, thinning the film thickness at both ends, causing the inconvenience of having to match the required film thickness by spraying overlapping the preceding spray area with the current spraying area, making it difficult to paint. In addition, the uniformity of the coating film is determined according to the skill of the operator, thereby improving the quality of coating and decreasing the uniformity.

In particular, when the painting work is repeatedly performed in the hull, the overlapping area of the preceding spray section and the new spray section becomes frequent, which further causes the difficulty of painting work and quality deterioration as described above. there was.

In addition, the conventional method "painting method by calculating the optimal stroke number of the coating robot" is applied to the case of painting in a limited space inside the block forming the hull, it is difficult to apply when painting the outer shell of large ships However, even if applied, the outer shell of the hull is partially repeated, so that the overlapping area of the preceding spray section and the new spray section not only causes excessive problems, but also causes the same problems as the prior art.

The present invention has been made to solve the problems as described above, to reduce the effort and time required for painting work, reduce the frequency of overlap between spray patterns, and to facilitate the quality and management of the coating film, Improves uniformity

The hull coating apparatus according to the present invention is a hull coating apparatus, comprising: a first guide provided in a longitudinal direction on a hull side, a first conveying body provided in a first guide, and a first conveying body along a hull longitudinal direction; A first conveying means for reciprocating conveying, a second guide installed vertically downward from the first conveying body, and installed on the second guide so as to face the hull shell, and a spray gun for spraying paint toward the hull shell. And a second transfer means and a second transfer means for reciprocating the second transfer body in the vertical direction.

The present invention forms the spray pattern by moving the spray gun in the horizontal direction over the entire area of the hull shell requiring painting, and by repeatedly forming such a spray pattern up and down to minimize the amount of movement of the spray gun is required for painting work Reduces effort and time, increases the area of the spray pattern formed continuously by one movement of the spray gun, reduces the frequency of overlap between the spray patterns, facilitates the improvement and management of the coating film, and the areas that are in contact with the spray patterns. By uniformly overlapping, it has the effect of improving the uniformity of the coating film.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 and 3 are a side view and a front view showing a hull coating apparatus according to a first embodiment of the present invention, Figure 4 is a configuration diagram showing a hull coating apparatus according to a first embodiment of the present invention. As shown, the hull coating apparatus 100 according to the first embodiment of the present invention is the first guide 110 which is installed in the longitudinal direction on the side of the hull 10, the first guide 110 is installed in the first guide 110 1 conveying body 120, the 1st conveying means 130 for conveying the 1st conveying body 120, the 2nd guide 140 installed below and perpendicular to the 1st conveying body 120, and 2nd In addition to the guide 140, and the spray gun 151, the second conveying body 150 is installed, and the second conveying means 160 for conveying the second conveying body 150.

The first guide 110 is installed in the longitudinal direction on the side of the hull 10 to guide the horizontal conveyance of the first conveying body 120, in this embodiment is transferred to the deck 11 of the hull 10 After the fixed frame 111 is fixed, and both sides are provided on the fixed frame 111, the first wire 112 is fixed to the first wire 112 is fixed.

The first guide 110 is preferably installed in a section necessary for reciprocating the first conveying member 120 in the area of the center portion plane of the hull 10.

The first conveying body 120 is fixed to the first wire 112 and moves together by the horizontal movement of the first wire 112.

The first conveying means 130 reciprocates the first conveying member 120 along the longitudinal direction of the hull 10. In this embodiment, the first conveying means 130 is installed on the fixed frame 111 to wind the first wire 112. It is a first winding machine, it is preferable that the pair is made of a pair for winding each of the first wire 112, which is supported by the pulley or the like to the fixed frame 111 to selectively transport to the front and rear of the hull (10).

The second guide 140 is installed vertically downward from the first conveying member 120 to move in the horizontal direction together with the first conveying body 120, and guides the second conveying body 150 to be conveyed in the vertical direction. .

The second guide 140 is a second wire in which one side is connected to the first conveying member 120 in this embodiment to fix the second conveying member 150, and balances the second conveying body 150 in a balanced manner. So that many, preferably two.

The second conveying body 150 preferably has a basket shape so that an operator can control the painting work by boarding, spraying the spray gun toward the outer plate 12 of the hull 10 on one side ( 151 is installed.

The second conveying member 150 may be provided with a plurality of spray guns 151 to be positioned up and down in order to increase the coating efficiency by forming a wide spray pattern in one movement, several times repeated spray effect In order to improve the quality of the coating film to obtain a plurality may be installed so that the spray gun 151 is arranged in the horizontal direction.

On the other hand, when a plurality of spray guns 151 are installed to be positioned up and down, any one spray gun 151 is a vertical line of the other spray gun 151 so that the paint sprayed from each spray gun 151 does not interfere with each other It is preferred to be installed out of phase.

The spray gun 151 receives a paint containing a solvent such as a thinner and a curing agent from the outside, and sprays it toward the outer plate 12 of the hull 10 at a predetermined pressure.

The second conveying means 160 reciprocates the second conveying member 150 from the first conveying body 120 in the vertical direction. In the present embodiment, the second conveying means 160 is installed on the first conveying body 120 to provide the second guide 140. It is preferable that it is a 2nd winding machine which winds the 2nd wire of ().

On the other hand, the hull coating apparatus 100 according to the present invention can directly control the first and second transfer means (130,160) and the spray gun 151, the operation is set in advance to increase productivity through the automation of the work It may further include a control unit 170 for controlling each of them to perform the painting operation in order.

As shown in FIG. 6, the control unit 170 transfers the first and second transfers such that the spray patterns A and B formed by the paint spraying of the spray gun 151 are horizontally arranged and arranged in a plurality of vertically. Controlling the means (130,160) and the spray gun (151), controlling the second conveying means (160) at a speed suitable for the spray patterns (A, B) formed by the paint sprayed from the spray gun (151), and Considering that the spray speed is about 150 cm / sec, the second conveying member 150 is conveyed at a relatively high speed.

As shown in FIGS. 6 and 7, the control unit 170 transfers the second conveying member 150 vertically by a distance for overlapping each other with the spray pattern to be formed. Control 160.

The controller 170 may be configured such that the range in which the spray patterns overlap each other (O; shown in FIGS. 6 and 7) corresponds to 10 to 80% of the vertical width W (shown in FIGS. 6 and 7) of the spray pattern. 2 controls the transfer means 160. Therefore, when the range where the spray patterns overlap each other (O; shown in FIGS. 6 and 7) is less than 10% of the vertical width W of the spray pattern, the overlapping degree is insufficient to help uniformize the spray pattern. If it exceeds 80% of the vertical width (W) of the spray pattern to reduce the work efficiency by increasing the time required for painting.

On the other hand, when a plurality of spray guns 151 are installed on the second conveying body 150 up and down, the range (O '; shown in FIG. 7) where the spray patterns formed by the spray guns 151 overlap each other is It is preferable to install the spray guns 151 on the second carrier 150 so that the spray guns 151 correspond to 10 to 80% of the same range that the spray patterns overlap with each other by the reciprocating transfer of the second carrier 150.

In order to form a uniform spray pattern by maintaining a constant distance from the outer plate 12, the spray gun 151 maintains a constant distance from the outer plate 12 because the second conveying member 150 is shaken due to the speed and the wind direction is conveyed. The distance sensor 171, the electromagnet 180, and the compressed air injection means 190 further includes.

The distance sensor 171 is installed on the surface facing the outer plate 12 of the hull 10 in the second conveying body 150, detects the distance to the outer plate 12 and outputs a detection signal to the control unit 170. .

Electromagnet 180 is installed on the surface facing the outer plate 12 of the hull 10 from the second conveying body 150, generates a magnetic force by the supply of power and is controlled by the control unit 170 The gap between the spray gun 151 and the outer plate 12 is reduced by pulling the second conveying member 150 toward the outer plate 12 side of the hull 10 by magnetic force.

Compressed air injection means 190 is installed on the surface facing the outer plate 12 of the hull 10 in the second conveying body 150, receives the compressed air from the external compressed air supply unit 191 the outer plate 12 Controlled by the control unit 170 for discharging the second conveying member 150 away from the hull shell plate side and operating the valve 172 provided on the path from which the compressed air is supplied from the compressed air supply unit 191. do.

The controller 170 receives the detection signal output from the distance sensor 171 and the electromagnet 180 and the compressed air injection means 190 so that the distance between the second carrier 150 and the outer plate 12 is within a predetermined range. To control. At this time, the distance range between the second conveying member 150 and the outer plate 12 is experimentally determined according to the spray pressure of the spray gun 151, the nozzle type, the kind of paint, and the like.

5 is a side view showing the hull coating apparatus according to a second embodiment of the present invention. As shown, the hull coating apparatus 200 according to the present invention is the first guide 210 is installed in the longitudinal direction on the hull 10 side, and the first conveying body 220 is installed on the first guide 210 ), A first conveying means 230 for conveying the first conveying body 220, a second guide 240 installed vertically downward to the first conveying body 220, and a second guide 240. In addition to the installation, the spray gun 251 includes a second conveying member 250 and a second conveying means 260 for conveying the second conveying body 250.

In the hull coating apparatus 200 according to the second embodiment, the first and second conveying bodies 220 and 250 are the same as the first and second conveying bodies 120 and 150 in the first embodiment, and the control unit 170 and the distance. The sensor 171, the electromagnet 180, and the compressed air injection nozzle 190 may further include the same as the first embodiment, and thus only the differences from the first embodiment will be described.

The first guide 210 has a fixed frame 211 fixed to the deck 11 of the hull 10 before and after, both ends are fixed to the fixed frame 211 and the first conveying member 220 is sliding A first rail 212 installed to be capable of

The first conveying means 230 is coupled to the first rack 231 and the first rack 231 provided in the longitudinal direction on the first rail 212 and rotatable to the first conveying body 220. And a first transfer motor 233 installed on the first transfer member 220 to rotate the first pinion 232.

The first transfer motor 233 provides a rotational force to the first pinion 232 using a belt, a speed reducer, etc., so that the first transfer member 220 is rotated by the first pinion 232 to the first rail 212. Along the horizontal direction.

The second guide 240 is a second rail having one end fixed to the first conveying body 220, and a second conveying body 250 is installed to move up and down along the second rail, and the second conveying body 250 is moved. It consists of a plurality of second rails, for example, to guide stably.

The second guide 240 may be provided with a stopper for preventing the second conveying member 250 from being separated at the lower end in order to prevent the second conveying member 250 from falling.

The second conveying means 260 is geared to the second rack 261 and the second rack 261 provided along the longitudinal direction on the second rail which is the second guide 240 and the second conveying body 250 A second pinion 262 installed to be rotatable) and a second transfer motor 263 installed to the second transfer member 250 to rotate the second pinion 262.

The second transfer motor 263 provides a rotational force to the second pinion 262 by using a belt, a reducer, etc., and prevents the second conveying member 250 from falling by rotating the second pinion 262 undesirably. A reducer or gear assembly is used in which the rotational force of the two pinion 262 is not reversed.

The first and second racks 231 and 261 may be formed as separate members to be installed on the first rail 212 and the second rail, or may be integrally formed with the first rail 212 and the second rail.

Referring to the operation of the hull coating apparatus according to the present invention having such a configuration as follows.

First, according to the hull coating apparatus 100 according to the first embodiment of the present invention, the control unit 170 receiving the operator's operation signal is driven by the first conveying means 130, the first conveying body 120 The spray pattern 151 is sprayed over the entire horizontal section of the outer plate 12 of the hull 10 by allowing the spray gun 151 to spray the paint together with the second conveying member 150. Form horizontally. At this time, the controller 170 controls the first transfer means 130 at a speed that matches the spray pattern formed by the paint sprayed from the spray gun 151.

After finishing the paint spraying for the entire horizontal direction in the outer plate 12 of the hull 10, the control unit 170 stops the paint spraying of the spray gun 151, and then drives the second conveying means 160 The second conveying member 150 is transported a predetermined distance in the vertical direction so that the spray gun 151 is conveyed to a position for forming a new spray pattern under the already formed spray pattern, the first conveying means 130 and the spray The spray pattern is formed horizontally in the reverse direction by the driving of the gun 151, and the painting operation is performed by repeating this operation.

On the other hand, the control unit 170 controls the second conveying means 160 to vertically convey the second conveying member 150 by a distance for overlapping the spray pattern to be formed on the already formed spray pattern.

That is, when painting is performed by a single spray gun 151 provided in the second conveying body 150, as shown in Figure 6, the first conveying body by the drive of the first conveying means 130 By horizontally conveying 120, the spray gun 151 moves with the second conveying member 150 in the "1" direction to form a spray pattern "A" and then sprays in the opposite direction "2". In the case where the spray pattern "B" is to be formed while the gun 151 is being transferred, the control unit 170 controls the second spray distance "B" by a distance to have an area "O" overlapping the spray pattern "A" preceding the new spray pattern "B". The second conveying means 160 is controlled to lower the conveying body 150.

In addition, in the case of performing a painting operation with a plurality of spray guns 151 provided in the second conveying body 150, as shown in FIG. 7, by driving of the first conveying means 130. Spray gun 151 while conveying the spray gun 151 installed in the direction of "1" to have the area "O '" overlapping each other with the second conveyance 150 by horizontally conveying the first conveyance 120. ) To form the spray patterns "C" and "D" formed by each. At this time, the spray guns 151 mounted on the second conveying member 150 may be installed to have an area "O" where each spray pattern "C" and "D" overlap each other, and the spray pattern "C". After forming the " D " and the " D " in the horizontal direction, and then forming the spray patterns " E " and " F " The second conveying means 160 is controlled to lower the second conveying member 150 by a distance to have an area " O " overlapping between the preceding and subsequent spray patterns " D " and " E ".

According to the hull coating apparatus 200 according to the second embodiment of the present invention, the first and second conveying means 230 and 260 for conveying the second conveying member 250 in the horizontal and vertical directions together with the spray gun are conveyed. The racks 231 and 261 and the pinions 232 and 262 converting the rotational force of the motors 233 and 262 into linear motions enable precise and stable transfer of the spray gun, thereby improving the quality of the coating.

Therefore, the hull coating apparatus according to the present invention forms the spray pattern by moving the spray gun in the horizontal direction over the entire area of the hull shell requiring painting, and the spray gun is repeatedly formed up and down to increase the amount of movement of the spray gun. By reducing the effort and time required for painting work, by increasing the forming section of the spray pattern continuously formed by one movement, it is easy to increase the quality and management of the coating film, and to overlap the areas that are in contact with the spray patterns. By improving the uniformity of the coating film.

As described above, specific embodiments have been described in the detailed description of the present invention, but it is obvious that the technology of the present invention can be easily modified by those skilled in the art, and such modified embodiments are defined in the claims of the present invention. It will be included in the technical spirit described.

1 is a view showing the coating direction of the hull shell according to the prior art,

2 is a side view showing a hull coating apparatus according to a first embodiment of the present invention,

3 is a front view showing a hull coating apparatus according to a first embodiment of the present invention,

Figure 4 is a block diagram showing a hull coating apparatus according to a first embodiment of the present invention,

5 is a side view showing a hull coating apparatus according to a second embodiment of the present invention,

6 is a view for explaining the painting operation of the hull coating apparatus according to the present invention,

7 is a view for explaining the painting operation according to another embodiment of the hull coating apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

110,210: first guide 111: fixed frame

112: first wire 120220: first conveying body

130,230: first transfer means 140,240: second guide

150,250: second conveying member 151: spray gun

160,260: second transfer means 170: control unit

171: distance sensor 172: valve

180: electromagnet 190: compressed air injection nozzle

191: compressed air supply unit 211: fixed frame

212: first rail 231: first rack

232: first pinion 233: first transfer motor

261: second rack 262: second pinion

263: second transfer motor 10: hull

11: Deck 12: Outboard

Claims (9)

In the painting device of the hull, A first guide provided in the hull side in the longitudinal direction, A first conveying member installed on the first guide, First conveying means for reciprocating the first conveying member in the longitudinal direction of the hull; A second guide installed vertically downward from the first conveying member; A second conveying body installed on the second guide so as to face the hull shell, and having a spray gun for spraying paint toward the hull shell; Second conveying means for reciprocating the second conveying member in a vertical direction Hull coating device comprising a. The method of claim 1, The first guide is provided on both sides of a fixed frame fixed to the front and rear on the deck of the hull, and includes a first wire to which the first conveying body is fixed, The first conveying means is installed in the fixed frame, the first winding machine for winding the first wire Hull coating device characterized in that. The method of claim 1, The first guide includes a first rail fixed at both ends to a fixed frame fixed to the front and rear on the deck of the hull, The first conveying means rotates the first rack provided in the longitudinal direction on the first rail, a first pinion gear-coupled to the first rack and installed on the first conveying member, and the first pinion. Including a first transfer motor installed on the first transfer member Hull coating device characterized in that. The method of claim 1, The second guide is a second wire connected to one side of the first conveying member, the second conveying member is fixed, The second conveying means is installed in the first conveying body, the second winding machine for winding the second wire Hull coating device characterized in that. The method of claim 1, The second guide is a second rail, one end of which is fixed to the first conveying member, The second conveying means includes a second rack provided along the longitudinal direction of the second rail, a second pinion gear-coupled to the second rack and installed on the second conveying member, and the second pinion to rotate. Including a second transfer motor installed on the second transfer member Hull coating device characterized in that. The method of claim 1, Controlling the first conveying means and the spray gun so that the spray gun sprays paint to form a spray pattern horizontally while the second conveying body moves in a horizontal direction, The second conveying member is vertically conveyed so that the spray patterns are arranged vertically, but the second conveying member is vertically conveyed by a distance for overlapping each other with the spray pattern to be formed. Control unit for controlling the conveying means Hull coating device further comprising. The method of claim 6, The control unit, Controlling the second transfer means such that the range where the spray patterns overlap each other corresponds to 10 to 80% of the vertical width of the spray pattern. Hull coating device characterized in that. The method according to claim 6 or 7, A distance sensor installed in the second conveying member and sensing a distance to the hull shell plate and outputting a detection signal; An electromagnet installed on the second conveying member and pulling the second conveying member to the hull shell side by magnetic force; Installed in the second conveying body, further comprising compressed air injection means for discharging the second conveying body from the hull shell side by spraying compressed air to the hull shell, The control unit receives the detection signal output from the distance sensor to control the electromagnet and the compressed air injection means so that the distance between the second conveying member and the hull shell plate falls within a predetermined range. Hull coating device characterized in that. The method of claim 1, The second conveying body, A plurality of spray guns are installed upside down, or a plurality of spray guns are arranged in a horizontal direction. Hull coating device characterized in that.

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