JPH0333384B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides an automatic coating device for building roof surfaces, which is used to automatically clean a building roof surface having a large area and to perform painting after the cleaning work. It is related to.

[Conventional technology] Many factory roofs are covered with folded steel roofing plates, etc., and the surface coating may peel off over many years, making it difficult to repaint the roof surface. is necessary.

Conventionally, when painting the roof of a building, a worker climbs onto the roof, uses a lifeline to perform ground preparation work from the ridge of the roof to the eaves, and then starts painting. was.

[Problems to be solved by the invention] However, conventional manual work by workers is inefficient, and the roofs of large buildings are high and the roof surface has a certain slope. As a result, there was a problem of lack of safety during work.

In addition to the roofs of buildings, for example, painting vertical surfaces such as building walls and tank walls, and painting curved surfaces such as the outer panels of ships, etc., have been mechanized and automatically painted. A device capable of this has been proposed and put into practical use.

However, such automatic painting equipment is applied to objects that have a smooth surface to be painted, and is also applied to objects that have a relatively heavy structure because the painting equipment itself is large and heavy. Therefore, the automatic painting apparatus described above cannot be applied where the surface to be painted is uneven and the object to be painted has a relatively light structure.

Therefore, in the past, automatic painting equipment was used to automatically and efficiently paint the roofs of buildings where the surfaces to be painted were uneven and the objects to be painted were light in structure and could not withstand the loading of heavy objects. No one has tried to do this.

Therefore, the present invention aims to automatically perform painting work on the roof surface of a building without relying on human power.
It allows for uniform painting work while easily moving over roof surfaces with limited payload and extremely uneven surfaces, reducing dangerous work at high places and allowing work to be done safely and efficiently. The object of the present invention is to provide an automatic coating device for the roof of a building that can separate the processing function and the coating function and reduce the weight and dead space when each function is performed.

[Means for Solving the Problems] The present invention mounts a winch and a cable reel on an upper frame having a U-shape in plan view, and also includes a traveling frame rotatably mounted on the lower surface of both ends of the upper frame. Attach a caterpillar equipped with a drive device to each of the running frames, provide a movable trolley for each caterpillar as a magnetic caterpillar, and connect a wire rope from a winch and a cable from a cable reel to the movable trolley. The cleaning carriage is provided with a hood having a built-in cleaning brush at its front end, and is equipped with at least a blower and a cleaning motor that communicate with the hood, and a winch is connected to the movable carriage. Cables from wire ropes and cable reels are connected to support a painting carriage, and the painting carriage is provided with a hood at its front end in which an undercoating gun and a topcoating gun are arranged on the front and back sides, and communicating with the hood. At least a mist collecting blower, an undercoat tank and an undercoat pump, a topcoat tank and a topcoat pump are installed.

[Function] Since the work of performing surface treatment and the painting work are performed separately, first, a keren carriage for base treatment is mounted on a moving trolley, and the moving trolley moves the ridge portion in the direction of the ridge to the desired work location. let The mobile trolley is of a caterpillar type and can distribute the load, and can easily traverse over irregularities on the roof surface.

The keren carriage for surface treatment is transferred from the movable trolley to the roof surface at the working position, and the winch on the movable trolley is unwound to lower the keren carriage along the slope of the roof surface, or by the self-propulsion of the keren carriage, it is moved to the ridge of the roof surface. While reciprocating between the eaves and the eaves, the robot performs surface preparation work such as removing dirt from the roof and peeling off old paint. When the surface preparation work at one work location is completed, the keren carriage is placed on a moving trolley and shifted toward the next work location. Once a series of surface preparations have been completed on the roof surface, a painting carriage is supported by a winch on a mobile cart in place of the keren carriage, and while the painting carriage is moved from the eaves to the ridge, the undercoat and topcoat are simultaneously applied and painted. . Even when the painting work position is shifted in the direction of the ridge, the painting carriage is placed on the movable trolley and moved together with the movable trolley.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

The drawing shows an embodiment of the invention, in which equipment for performing the different functions of preparing the surface of the roof of a building and applying paint is mounted on separate carriages, and the equipment is mounted on separate carriages to provide a sliding surface despite the slope of the roof. The movable cart is designed to be able to move the roof surface in the direction of the ridge without any movement, and the above-mentioned cleaning carriage for surface treatment and the painting carriage for applying paint can be selectively assembled and supported.

The above-mentioned mobile cart constitutes the main part of the automatic painting apparatus of the present invention, and has a U-shaped upper frame 1 made of aluminum alloy in order to reduce weight, and has a built-in winch 2 and a cable reel. 3. It has a built-in control panel 4 (see Figure 6 for both), and has an insertion hole 7 for the wire rope 5 from the winch 2 and an insertion hole 8 for the cable 6 from the cable reel 3 on the front of the central part, and further, Upper frame 1
The inner surfaces of both ends of the cartridge face each other, and a carriage upper limit switch (proximity switch) 9 is mounted on one side.
A mechanical upper limit switch 10 is provided on the opposing surface. Also, upper frame 1
The upper surface of both ends of the upper frame 1 is flat so that each side of the cleaning carriage or the painting carriage can be transferred onto the inner edges 1a, 1b of the upper frame 1 at both ends. Further, on the lower surface of both ends of the upper frame 1, the running frame 11 is mounted with a turning ring 12.
Caterpillars 13 are attached symmetrically to each traveling frame 11 in order to distribute the load and overcome unevenness on the roof surface, and each caterpillar 13 is connected to a traverse motor 14 with a brake. Each caterpillar 13 is made of a magnetic caterpillar, and the metal roof Allows movement towards the ridge while being adsorbed to the surface. Further, each of the front and rear traveling frames 11 is equipped with, for example, ultrasonic switches 15 and 1 as a mechanism for automatically detecting the edge of the roof in the ridge direction and stopping the lateral movement of the truck 1 during reciprocating movement.
Attach 6 in the opposite direction. In addition, in Figure 6, 1
4 is a lock cylinder, and 18 is a turning limit switch, which is designed to detect a turning angle of 90 degrees of the traveling frame 11.

On the other hand, among the coating carriage and the coating carriage supported by the winch 2 of the moving truck via the wire rope 5, the coating carriage has the following construction.

That is, as shown in FIGS. 1 and 4, a mist dust collecting blower 20, a tank 21 for the undercoat paint, and a tank 2 for the top coat paint are installed on the upper surface of the carriage main body 19.
2. An undercoat airless pump 23 connected to the tank 21, a topcoat airless pump 24 connected to the tank 22, a travel motor 25, an air cylinder 26, and a power supply box (not shown) are mounted on the bottom surface. Two shafts 27 and 28 are rotatably supported by bearings at the front and rear ends, and V-groove pulleys 31 and 32 are rotatably supported at both ends of the shafts 27 and 28 via links 29 and 30, respectively. At the same time, sprockets 33 and 34 are attached to both ends of the front shaft 27 and the shaft of the pulley 31, and an endless chain 35 is attached to both sprockets 33 and 34.
As shown in FIG. 6, both ends are double shafts, and an endless chain 37 is also connected between the gear 36 provided midway on the shaft 27 and the output shaft of the travel motor 25, and the inner shaft A clutch 38 is provided between 27 and the outer shaft 27a. Further, a V-belt 39 is applied to the front and rear pulleys 34 and 35 located on the left and right to distribute the load of the carriage, and power is transmitted to the pulley 31 via the shaft 27 and sprockets 33 and 34 by the drive of the travel motor 25. Therefore, the entire carriage can be moved using a caterpillar method. Further, the front and rear links 29 and 30 are integrally connected on both the left and right sides so that they can rotate about the shafts 27 and 28 at the same time. The pulleys 31 and 32 and the V-belt 3 are powered by the driving motor 25.
The caterpillar consisting of 9 can be lifted and lowered. Further, the front end of the carriage body 19 is provided with a skirt 4 for contacting the roof surface 40 so as to be able to seal against the unevenness of the roof surface 40.
A hood 42 is installed which is capable of lifting up the partition wall 4.
3 to form a cavity penetrating in the left and right direction,
At a position near the front end of the partition wall 43, a plurality of primer coating guns 45 are arranged in multiple rows (only one row is shown in the drawing) at appropriate intervals in the left and right direction, so that only the tip of each gun 45 is disposed. It penetrates the partition wall 43 and faces into the hood 42. A plurality of top coat guns 44 are disposed near the rear end of the partition wall 43 in the same manner as the undercoat guns 45, and the spraying direction of both the undercoat guns 45 and the top coat guns 44 can be changed. It is designed so that it can be swung left and right, and its height can be changed so that it can be set at an optimal distance from the part to be painted on the roof surface 40. Furthermore, piping is provided so that the undercoat paint in the tank 21 is supplied to each of the undercoat paint guns 45, and the topcoat paint in the tank 22 is supplied to each topcoat paint gun 44 by airless pumps 23 and 24, respectively. Moreover, the blower 20 and the hood 42
are communicated with each other through a collecting part 46, and the collecting part is equipped with a mist collecting device.This mist collecting device employs a method in which filters are wound one after another, so that the mist collecting surface is visible. To enable long-term use without needing to be replaced even if clogged. Note that there is a caterpillar upper and lower limit switch 47 (see Fig. 6) at the upper and lower limit positions of the caterpillar, and this upper and lower limit switch 47 controls the travel motor 2.
5. It is electrically connected to the clutch 38. 48
An ultrasonic switch is attached to the front end of the carriage body 19 to detect the lower limit position, and is connected to the winch 2 and the travel motor 25.

Furthermore, the Kelen carriage has a configuration as shown in FIG. That is, a cleaning motor 50, a travel motor 51, and a dust collection blower 52 are mounted on the upper surface of the carriage main body 49, and links 55, 56 are installed at both ends of the front and rear shafts 53, 54, as in the case of the painting carriage. The intervening pulleys 57 and 58 are rotatably attached to each other, and V is applied to the pulleys 57 and 58.
A belt 59 is applied, and a chain 62 is applied to sprockets 60 and 61 attached to both ends of the front shaft 53 and the shaft of the pulley 57, and the power of the travel motor 51 is transferred to the shaft 5.
3 so that the whole can be moved using a caterpillar. Further, as in the case of the paint carriage, rotational power is transmitted to the link 62. A hood 64 is installed at the front end of the carriage body 49 and is capable of being lifted up with a skirt 63 that is in sealable contact with the unevenness of the roof surface 40. A cleaning brush 65 is rotatably installed, and the cleaning brush 65 is attached with the brush part changed in direction so as to hit the treated part in a right angle direction, and a power transmission mechanism 66 is connected between the cleaning motor 50 and the shaft of the cleaning brush 65. The cleaning motor 50 rotates the cleaning brush 65 at high speed, and the blower 52 sucks up dust and peeled pieces of old paint generated when the cleaning brush 65 performs surface treatment. The hood 64 and the blower 52 are communicated with each other.

Incidentally, the lifting and lowering of the caterpillar can be detected by limit switches 67 and 68 (see FIG. 7), and the limit switches and the traveling motor 51 are connected.

The painting work on the roof surface 40 is performed separately into base treatment and painting.

First, when performing surface treatment, place the paint cartridge on the moving trolley as shown in Fig. 2 (Fig. 2 shows the state in which the painting carriage is placed), and then move the V-belt 59, link 55, which is the running part, 5
6 is rotated approximately 90 degrees to lift it up. In this state, even if the movable trolley moves along the roof surface in the ridge direction, the cleaning carriage will not interfere with the convex portion of the roof surface 40, so the movable trolley can be moved sideways to the end of the roof surface 40 in the ridge direction where surface treatment is to be performed. let Since there is an ultrasonic switch 15 at the tip of the moving trolley in the transverse direction, the ultrasonic switch 15 is activated at the end of the roof, each of the traversing motors 14 of the traveling frame 11 is stopped, and the moving trolley is moved to the roof surface 4.
0 and is held by the magnetic caterpillar 13 without slipping toward the eaves. The wire rope 5 wound around the winch 2 of the moving truck is tied to the Keren carriage, and the cable 6 wound around the cable reel 3 is connected to the relay terminal box 69 (see Fig. 7) of the Keren carriage. .

Next, when the power is turned on and the start switch is pressed, the caterpillar consisting of the V-belt 59 of the Keren carriage placed on the movable trolley descends and comes into contact with the roof surface 40. Next, the winch 2 of the movable cart is operated to rewind the wire rope 5, and at the same time, the travel motor 51 of the cleaning carriage is driven, and the cleaning motor 50 is also activated. As a result, the cleaning carriage moves on the roof surface 40 from the ridge toward the eaves while self-propelled, and the cleaning brush 65 performs surface preparation work. The reason why the Keren Carriage is self-propelled and connected to the winch 2 of the movable cart with the wire rope 5 is because the slope of the roof 40 is gentle, so if it is not self-propelled, it cannot be simply hung with the wire rope 5. This is because they cannot be moved, and self-propelled vehicles alone lack safety.

When the Keren carriage descends to the eaves of the roof, the ultrasonic switch 48 at the front end detects the eaves, and at the same time as the winch 2 stops operating, the travel motor 51 stops.

Next, the winch 2 is operated in the winding direction, the travel motor 51 is reversed, and the cleaning motor 50 is driven to raise the cleaning carriage. At the position where the Keren carriage reaches its upper limit, the carriage moves to the inner edge 1a, 1 of the moving carriage.
Move to position b and operate upper limit switches 9 and 10. This causes the clutch on the drive shaft of the caterpillar to operate and the caterpillar to link 55,
It is lifted by turning 56 degrees. At the upper limit of the lift, the limit switch 67 is activated and the travel motor 51 and winch 2 are stopped.

Next, the movable cart is moved to the next base treatment area and stopped, and the same work as described above is performed. The roof surface 40 is sequentially treated in the direction of the ridge, and when the end of the roof is reached, the ultrasonic switch 1 of the mobile cart is turned on.
It is detected at 6 and the moving trolley stops.

When the surface treatment of the entire roof surface is completed, the stop switch is pressed to turn off the power, a painting carriage is placed on the movable carriage in place of the coating carriage, and the wire rope 5 and cable 6 are connected.

When painting, as in the case of base treatment,
Turn on the power and press the start switch. The caterpillar stored in the paint carriage on the moving truck descends and comes into contact with the roof surface 40, and at the same time the lower limit switch 47 disengages the clutch 38 and the driving force of the travel motor 25 is transmitted to the caterpillar. When the winch 2 is operated in the unwinding direction, the paint carriage can move by itself toward the eaves while being suspended by the wire rope 5. At the start of painting, the airless pump 23 for undercoat is activated and the airless pump 24 for topcoat is activated to distribute undercoat paint from tank 21 to each undercoat gun 45 and topcoat paint from tank 22 to each topcoat gun 44. , the undercoat paint is ejected from each undercoat paint gun 45 to perform undercoating first. Then, after a certain period of time, the top coating gun 44
The top coat paint is sprayed out from the top coat and the top coat paint is applied on top of the base coat, and the paint is applied by moving from the eaves part to the ridge part while applying the base coat and top coat at the same time.
The undercoat is, for example, an epoxy paint made of epoxy, a curing agent, white tar, and a pigment, and the top coat is a salt rubber paint made of chlorinated rubber and a pigment. When the paint cartridge reaches the eaves, the lower limit is detected by the ultrasonic switch 48, and at the same time, the travel motor 25 and winch 2 are stopped, and the airless pumps 23, 24 are stopped.
will also stop.

Next, the winch 2 is operated in the winding direction and the travel motor 25 is reversed to raise the paint carriage. When the upper limit is reached, the paint cartridge is transferred to the movable cart, the caterpillar is lifted, and the upper limit switch 9, 1 is activated.
At 0, the travel motor 25 and winch 2 stop.
In this state, the movable cart is moved sideways to the next painting area and stopped, and the coating carriage is lowered again while undercoating and topcoating are simultaneously applied. The mist generated during the above-mentioned painting work is collected by a mist collection device. Further, each gun 44, 45 is connected to a partition wall 43.
Since the guns 44 and 45 are located on the outside, it is possible to prevent the guns 44 and 45 from being contaminated. Painting carriages are sequentially placed on a moving cart and moved side by side, and when the painting carriage moves to the eaves and reaches the end of the roof, it is detected by an ultrasonic switch 16 and the traversing motor 14 is temporarily stopped. Next, painting work is carried out automatically from the eaves to the direction of the ridge.

In the coating apparatus of the present invention, the base treatment and painting are performed separately as described above, but two movable trolleys are mounted on one roof surface, one movable trolley supports the Keren carriage, and the other movable trolley It is also possible to support a painting carriage and move it from one end of the roof to the other at the same time while painting following the ground preparation.Also, if the slope of the roof surface 40 is steep, the work can be carried out by suspending the work using a wire rope 5. I will let you do it.

Note that the automatic painting apparatus of the present invention is not limited to the illustrated embodiment; for example, the caterpillar drive mechanism of each carriage may be of a power transmission system other than that shown in the drawings, or the tank 21, 22 and pump 23,2
The arrangement relationship of 4 may also be other than shown.

[Effects of the Invention] As described above, according to the automatic painting device for building roof surfaces of the present invention, the base treatment function and the painting function are separated, and the Keren carriage is equipped with all the equipment that performs the base treatment function and the painting function. A winch is mounted on a movable trolley which is equipped with a separate painting carriage carrying all the equipment and can move across the ridge of the roof in the direction of the ridge, and this winch supports the keren carriage and the painting carriage separately. Moreover, the paint cartridge is designed so that the undercoat and topcoat can be applied at the same time.
The following excellent effects can be achieved.

(i) Building roofs can be painted automatically without manual effort, increasing work efficiency and safety.

(ii) Just by mounting this device on the roof, work can be started immediately, reducing the setup work required for construction work.

(iii) Base preparation is done by simply moving the keren cartridge between the ridge and the eaves, and painting is done simultaneously by moving the roof surface after the base treatment from the eaves to the ridge. Therefore, it is possible to efficiently work on a wide area at once, and the work period can be shortened.

(iv) Since the movable trolley is of a caterpillar type and has a magnetic mechanism, the load is distributed and the load is not concentrated on the roof surface, and there is no possibility of slipping on the slope of the roof surface.

(v) By separating the base treatment function and painting function into separate carriages, the overall weight can be reduced, and the Keren carriage does not have painting equipment that is unnecessary during base treatment work, so it can be used for painting as well. Since sometimes unnecessary surface treatment equipment is not mounted on the painting carriage, dead space can be reduced, and it is also possible to cope with the difference in work speed between surface treatment and painting.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the state in which painting is being performed;
Figure 2 is a perspective view showing how it moves towards the ridge of the roof, Figure 3 is an enlarged view of the moving trolley, Figure 4 is an enlarged view of the painting carriage, Figure 5 is an enlarged view of the Keren carriage, and Figure 6 is an enlarged view of the carrier. The figure is an example diagram showing the basic configuration of the apparatus of the present invention, and FIG. 7 is a diagram showing a Kelen carriage in place of the painting carriage shown in FIG. 6. is a moving trolley, is a painted carriage, is a keren carriage, 1 is an upper frame, 2 is a winch, 3 is a cable reel, 5 is a wire rope, 6
is a cable, 11 is a running frame, 13 is a caterpillar, 14 is a traverse motor, 20 is a mist dust collection blower, 21 is a tank for undercoat, 22 is a tank for topcoat, 23 is an airless pump for undercoat, and 24 is an airless for topcoat. Pump, 25 is a travel motor, 39 is a V-belt, 44 is a topcoat gun, 45 is an undercoat gun, 50 is a cleaning motor, 51 is a travel motor, 52 is a dust collection blower, 59 is a V-belt, 64
indicates a hood, and 65 indicates a cleaning brush.

Claims (1)

[Scope of Claims] 1. A winch and a cable reel are mounted on an upper frame having a U-shape in plan view, and traveling frames are rotatably attached to the lower surface of both ends of the upper frame, and each traveling frame is provided with a winch and a cable reel. , a movable trolley is provided in which a caterpillar equipped with a drive device is assembled, each of the caterpillars serves as a magnetic caterpillar, and a wire rope from a winch and a cable from a cable reel are connected to the movable trolley to support a Keren carriage; An automatic painting device for building roof surfaces, characterized in that the cleaning carriage is provided with a hood having a built-in cleaning brush at its front end, and is equipped with at least a blower and a cleaning motor communicating with the hood. 2 A winch and a cable reel are mounted on an upper frame having a U-shape in plan view, and traveling frames are rotatably attached to the lower surface of both ends of the upper frame, and each traveling frame is equipped with a caterpillar equipped with a drive device. A movable trolley is provided in which each of the caterpillars is used as a magnetic caterpillar, and a wire rope from a winch and a cable from a cable reel are connected to the movable trolley to support a painted carriage, and the painted carriage is
A hood with an undercoat gun and a topcoat gun arranged on the front and rear sides is provided at the front end, and a mist dust collection blower, an undercoat tank and an undercoat pump, a topcoat tank and a topcoat pump are connected to the hood. An automatic painting device for the roof of a building, characterized in that it is equipped with at least one device.