JPH01107861A - Automatic coater for external wall surface of building - Google Patents

Abstract

PURPOSE:To prevent paint mists from being scattered to the outside of a coating hood by constituting the coating hood wherein a frame having elasticity is fitted to the peripheral edge of an aperture part so that it can be oscillated. CONSTITUTION:The title coater is constituted of both a trestle A which is hung from the roof of a building so that it can be vertically moved and a coater B which is hung so that this can be moved to the right and left directions for the trestle A. Means 6, 7 for moving the coater B right and left, a guide rail 10 for guiding its transfer and a trestle positioning device 50 which is fitted to a guide groove 30 provided to the external wall surface of the building are provided to the trestle A respectively. Further both a moving means A by which a coating hood 2 provided with a spray gun 23 inside is moved to the direction orthogonal for the external wall surface and an oscillating means 24 for turning the hood 2 right and left are provided to the coater B. Further more a frame consisting of an elastic body is fitted to the peripheral edge of an aperture part facing the external wall surface of the hood 2. As a result, paint mists can be prevented from being scattered to the outside of the coating hood.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic painting device for an exterior wall of a building, which automatically paints an exterior wall of a building with a coating hood that follows the complex shape of the exterior wall.

[Conventional technology]

As an example of a conventional automatic painting device for the exterior wall of a building that is equipped with a painting hood for preventing scattering of paint mist, there is a device proposed by the present applicant in Utility Model Application No. 60-095592.

This paint hood is equipped with flat rollers and auxiliary rollers on the upper and lower edges of the painting hood facing the external wall surface, and side rollers on the left and right edges that can automatically advance and retreat according to the shape of the wall surface. Automatic painting is performed by moving the paint mist in the left and right directions along the shape of the wall while keeping it in close contact with the wall to prevent paint mist from scattering.As each of the rollers mentioned above is made of a flexible elastic material, it has good adhesion to the wall. It had an excellent structure and was capable of extremely smooth lateral movement.

[Problem that the invention seeks to solve]

However, although this conventional automatic painting device has the feature of being able to perform automatic painting continuously in the horizontal direction, the rollers are pressed against the painted wall surface and rotate in a bent state. The quality of the painted surface deteriorates significantly, making it difficult to ensure a satisfactory painted surface, and the roller, which is a flexible elastic body, wears out due to repeated use, resulting in insufficient sealing of the gap between the roller and the wall surface. There was a problem that scattering of paint mist could not be sufficiently prevented.

This invention was made in view of these conventional problems, and solves the above problems by making the painting hood swingable, which has an elastic frame attached to the periphery of the opening. It is intended to.

[Means for solving problems]

This invention consists of a pedestal that is suspended from the roof of a building so that it can be raised and lowered, and a coating device that is suspended from the pedestal so that it can be moved left and right, and the pedestal includes a moving means that moves the coating device left and right. A guide rail for guiding the movement and a mount positioning device that engages with a guide groove arranged on the outer wall of the building are respectively provided, and the coating device has a coating hood equipped with a spray gun inside in a direction perpendicular to the outer wall. The exterior wall surface of a building is characterized in that a means for advancing and retracting the painting hood and a swinging means for rotating the painting hood left and right are provided, and a frame made of an elastic body is attached to the periphery of the opening facing the exterior wall surface of the painting hood. This is an automatic painting device.

[Effect]

Since the automatic painting device is configured as described above, during work, this device engages the mount positioning device installed on the mount with the guide groove arranged on the outer wall of the building, suspends it from the roof of the building, and paints. Stop moving up and down when you face the wall you want to move. Next, the painting hood of the painting device suspended from the mount is moved laterally on the guide rail by a moving means so as to face the position where painting of the wall surface is to be started, and furthermore, a moving means is used to move the painting hood closer to the wall surface. to advance in a direction perpendicular to the wall. At this time, if the outer wall surface is made up of a folded surface, for example, when the folded hood is unfolded, the painting hood is rotated from side to side by the swinging means and moved forward while facing the folded wall surface. A frame provided around the periphery of the opening is brought into pressure contact with the wall surface. When the wall is then painted with a spray gun installed in the paint hood, the flexible and elastic frame bends due to pressure contact and adheres closely to the wall, sealing the gap between the wall and the paint hood, allowing the paint mist to spread out. Prevents paint from scattering outside the hood.

In this way, when the painting of one folded surface is completed, the coating hood is moved back by the advance/retreat means, and the coating hood is moved left and right by the swinging means so as to face the next folded surface.
Thereafter, the frame body is moved forward again by the advancing and retreating means to press the frame body against the wall surface which is the next folding surface, and painting is performed.

Repeat the above steps to paint the required wall surface.

〔Example〕

The present invention will be explained below based on the drawings. 1st to 10th
The figure is a diagram showing an embodiment according to the present invention.

First, the structure will be explained. Reference numeral 1 denotes a carrier, which consists of a pedestal A and a coating device B, and is suspended by a roof car C on the roof of a building, as shown in FIG.

Frame A is equipped with a control device for performing work and an air supply device (
(not shown), etc.

Reference numeral 2 denotes the hood of the painting device B, which forms a box body, the surface facing the building wall 29 is open, and inside, a plurality of spray guns 23 for painting the wall can be gripped by the shaft plate 28. It is set in.

2a is a frame made of an elastic body attached to the periphery of the opening. 3 is a hood support device, and a cylinder 2 for swinging the hood so as to directly face the wall surface to be painted.
The hood 2 to which the hood 4 is attached is supported by the hood support beam 26 so as to be movable forward and backward. 4 is a hood advance/retract motor, which is a ball screw 25 provided in the hood support beam 26;
By rotating forward and backward, the hood 2 is moved forward and backward relative to the wall surface 29 via the hood support device 3. Reference numeral 5 denotes a gun swinging motor, which rotates the shaft plate 28 to which the spray gun 23 is attached via the rod 27, and by swinging the spray gun 23, the surface to be coated can be painted with irregularities such as stone cracks. A sufficient coating thickness can be ensured even on surfaces (see Figures 7 to 9).

Reference numeral 6 denotes a hood lateral movement motor, which is provided at both ends of the guide rail 10 of the pedestal A. By moving the cart 40 via a sprocket 6a coaxial with the motor 6 and a chain 7 meshing with the sprocket 6a, The hood 2 is moved laterally via the hood support beam 26 fixed to this truck. Reference numeral 9 denotes a truck roller provided on the truck 40 so as to sandwich the guide rail 10 from above and below.

A cable carrier 8 is provided on the truck 40 to support hoses that supply paint to the hood 2, cables that supply power to each drive system, and the like.

Reference numeral 11 denotes a guide for the carrier 1, which engages with a guide groove 30 vertically arranged on the wall surface 29 of the building.
It is composed of rollers that guide the lifting and lowering of the carrier 1 along the wall surface 29. Reference numeral 12 denotes a rope hook for fixing one end of a hanging rope 13 for suspending the carrier 1. 14 is a paint hose, and 15 is an electric cable, the end of which is supported by the cable carrier 8.

A plurality of distance sensors 16 are provided on a metal frame 17 formed to surround the hood 2 in order to detect the distance between the wall surface 29 and the hood 2.

50 is a carrier positioning device, which is a device for positioning the carrier 1 to a predetermined position and fixing the gantry A to the guide groove 30 after positioning.

FIG. 4 shows a perspective view thereof. Reference numeral 19 denotes a locate actuator, which is provided at the center of the pedestal A in the width direction.

Reference numerals 20 and 20 denote a pair of rods of equal length, each of which has one end attached to the disk surface of the locate actuator 19 so as to be rotatable symmetrically about its center, and the other end fixed to the locate bracket 18 and 18, respectively. . Therefore, when the locate actuator 19 is rotated forward or backward, the distance between the pair of locate brackets 18 becomes wider or narrower. Reference numerals 21 and 21 denote a pair of fixing brackets, which are moved outward in the figure by the drive of the fixing actuator 22, and the tips of the fixing brackets 21 are pressed against the inner wall of the guide groove 30 with a predetermined pressure so that the carrier l
can be fixed to a predetermined position on the wall. Since both the locate bracket 18 and the fixing bracket 21 come into pressure contact with the inner wall of the guide groove 30, hard rubber or the like is attached to their tips to avoid damage.

Air is supplied to the locate actuator 19 and the fixing actuator 22 by a near compressor (not shown) mounted on the carrier 1. In this embodiment, two pairs of locate brackets 18 and two pairs of fixing brackets 21 are provided, as shown in FIG. 4.

Reference numeral 28 denotes shaft plates, and as shown in FIGS. 7 to 9, four shaft plates are installed in the hood 2 in this embodiment, and a plurality of spray guns 23 are attached to each shaft plate.

Reference numeral 24 denotes a hood swinging cylinder, which is attached to the hood support device 3 and operates according to the angle memorized by a control device (not shown) mounted on the carrier 1, as shown in FIG. 10. The hood 2 is swung and rotated so as to directly face the A side or the B side.

Next, the operation will be explained.

Now, the carrier 1 is moving to the roof car C on the rooftop as shown in Figure 6.
suspended from the wall surface 29 and moved up and down along the guide groove 30 of the wall surface 29,
Stops at the painting position. At this time, the gantry positioning device 50
The locate bracket 18 and the fixing bracket 21 are respectively engaged in the guide groove 30 (see FIG. 5). In this state, when the locate actuator 19 is actuated and rotated in the direction of arrow a (FIG. 4), the locate brackets 18 and 18 move in a direction where the distance between them becomes narrower, and their tips touch the inner wall of the guide groove 30. Press at a specified pressure. Since the rods 20 and 20 have the same length and the locate actuator 19 is provided at the center of the pedestal A in the width direction, the center between the guide grooves 30 and 30 coincides with the center of the pedestal A in the width direction. Next, the fixing actuator is activated, and the fixing bracket 21.21 moves in the opposite direction to the locating bracket 18.18, pressing the inner wall of the guide groove 30 with strong pressure. In this state, frame A
is firmly fixed to the wall surface 29.

Next, by the action of the distance sensor 16 provided on the metal frame 17, the distance from the sensor 16 to the target surface is instantaneously measured to determine whether the location is a window, louver, etc. that is excluded from painting, or a wall surface that should be painted. to determine.

Once it is confirmed that the wall surface should be painted, the painting process begins.

Before starting the painting process, the opening of the hood 2 must first be directly opposed to the wall surface to be painted.

For example, as shown in Figure 10, to make it face directly to side A,
The hood swinging cylinder 24 is driven to the state shown in FIG. Next, the hood advancement/retraction motor 4 is driven to advance the hood 2 toward the wall surface, and the frame 2a provided around the four peripheries of the hood opening is brought into contact with the A side. The distance that the hood 2 should move forward at this time is controlled by the detection signal from the distance sensor 16.

Since the frame body 2a is made of a flexible elastic material such as foamed resin, the airtightness between the hood 2 and the wall surface is maintained even if the wall surface has some unevenness, and paint mist does not leak. .

Next, when the spray gun 23 starts painting,
The loft 27 is moved by driving the gun swing motor 5.
The shaft plate 28 is rotated left and right at a fixed angle (approximately 90 degrees in this embodiment) through the shaft plate 28, giving an oscillating motion to the plurality of spray guns 23 attached to the shaft plate 28.

The swing angle can be arbitrarily set by selecting the lengths of the rod 27, cranks 27a, 27b, etc.

Next, the hood 2 is moved laterally on the A side by a combination of the operations of the hood advancement/retraction motor 4 and the hood lateral movement motor 6, and when the painting of the A side at the gantry A stop position is completed, the hood 2 is moved back and The angle with respect to the wall surface is set to the state shown in FIG. 10 (B), and then the hood 2 is made to directly face the surface B using the swinging cylinder 24, and the hood 2 is set to the state shown in FIG. 10 (C), and painting is performed in the same manner as described above.

Thus, the guide groove at the stand A/stop position is 30°30
When the horizontal painting of side A and B, which are the walls in between, is completed,
The carrier 1 is raised or lowered to the next painting position and the same horizontal painting is performed. Repeat the above steps in order to complete the painting.

〔Effect of the invention〕

As explained above, according to the present invention, the following effects can be obtained. (1) As in conventional mist scattering prevention coating using a hood composed of a combination of various rollers,
No significant deterioration of the quality of the painted surface due to the moving rollers occurs. (2) It is possible to maintain the airtightness of the hood against a wall surface with significant irregularities, and to achieve uniformity in painting the irregular surface, which is similar to manual labor. (3) Areas to be excluded from painting, such as windows and louvers, can be identified by a control device using distance sensors, etc., so there is no need to perform curing work in advance as in the past, shortening the process.

Cost reduction can be achieved. (4) Since scattering of paint mist can be prevented, paint loss can be significantly reduced and environmental pollution can be prevented. (5) Since it is equipped with a carrier fixing device, automatic painting is possible in strong wind environments, and there is no need for workers to ride along with the carrier, making it possible to maintain safety and privacy in hotels, condominiums, etc.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment according to the present invention, FIG. 2 is a front view of the embodiment, FIG. 3 is a side view of the embodiment, and FIG. 4 is a perspective view of the gantry positioning device in the embodiment. FIG. 5 is a plan view of FIG. 4, FIG.
The figures are a view in the direction of the Y arrow in FIG. 7, FIG. 9 is a view in the direction of the X arrow in FIG. 7, and FIG. 10 is a schematic view showing the action of the hood swinging means. A... Frame, B... Painting device, 2...
...Painted hood, 2a...Frame body, 10...
... Guide rail, 23 ... Spray gun, 30 ... Guide groove, 50 ... Frame positioning device. Patent Applicant Taisei Corporation Agent Patent Attorney Tetsuya Mori Attorney Yoshiaki Uchi Patent Attorney Tadashi Shimizu

Claims (1)

[Claims] It consists of a pedestal that is suspended from the roof of a building so that it can be raised and lowered, and a coating device that is suspended from the pedestal so that it can be moved left and right, and the pedestal includes a moving means that moves the coating device from side to side, and a means for moving the coating device from side to side. A guide rail to guide the building and a frame positioning device that engages with a guide groove arranged on the outer wall surface of the building are respectively provided, and the painting device moves a painting hood equipped with a spray gun inside in a direction perpendicular to the outer wall surface. An automatic application for the exterior wall of a building, characterized in that it is provided with an advancing/retracting means, a swinging means for rotating the painting hood left and right, and a frame made of an elastic body is attached to the periphery of the opening facing the exterior wall of the painting hood. Painting equipment.