JPS61471A - Apparatus for painting cylindrical structure - Google Patents

Abstract

PURPOSE:To automatically perform the painting of a cylindrical structure, by mounting a painting stand having a grinding painting apparatus and a locating mechanism mounted thereto on a running stand and allowing said running stand to run near a turntable having an object mounted thereon. CONSTITUTION:Objects A to be painted are arranged on four sets of front, rear, left and right revolvable turntables 1 and rails 2 are laid between the turntables 1 while a running stand 3 are mounted on the rails 2 in a freely runnable manner and located so as to be opposed to the axis of each object A. Further, the material conditioning and movable painting part 4 of the object A is mounted on the running stand 3 and an operator operates a control panel 5 and a material supply apparatus 6 to perform location and painting. By this mechanism, painting is automatically performed at a high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating apparatus for cylindrical structures such as high-rise chimneys.

When assembling a cylindrical structure such as a high-rise chimney on site, for example, as shown in Figure 6, the divided rings (αKa') are butted together and vertically welded to form a single ring (b) as shown in Figure 7.
), stack the same single rings (h) and weld the periphery to form a cylindrical structure (c) as shown in FIG. Furthermore, after this cylindrical structure (C) is painted on the ground, it is successively lifted up with a crane, welded in the air, and unpainted parts are painted to complete the construction.

Conventionally, on-site ground painting of the cylindrical structure (c) is carried out by placing a surface plate (-) on the board (d) as shown in Figures 9 and 10.
A cylindrical structure (c) is placed on top of the cylindrical structure (c), and a painting scaffold (f) is erected around it for painting, or a mobile painting method is used as shown in Figs. There is a method of painting by suspending a stand (yl) above the cylindrical structure (c) and rotating it around the structure (c), but since both rely on human power, it is necessary to increase the painting speed. could not be done and required a lot of manpower.

The present invention was proposed to solve these problems, and includes a turntable on which an object to be painted is mounted, a running rail laid along the turntable, a running mount running on the rail, A coating frame mounted on the traveling frame so as to be able to move up and down, a support member for the abrasive and coating equipment mounted on the same traveling frame so as to be able to move forward and backward as well as pivot, and abrasive coating on the support member. The present invention relates to a coating apparatus for a cylindrical structure, characterized in that the coating apparatus includes a positioning mechanism for moving the coating apparatus close to and away from the object to be coated.

Since the coating apparatus according to the present invention is configured as described above, the traveling pedestal is moved along the traveling rail laid along the turntable, and the polishing and coating position for the object to be painted on the turntable is moved. and move the painting stand mounted on the traveling stand up and down, and adjust the forward/backward movement and rotation of the supporting member of the abrasive and painting device mounted on the same stand to position it with respect to the object to be painted. do the
The abrasive and coating device on the support member is brought close to the object to be coated by the positioning mechanism and performs the required abrasive and coating work on the object, and the turn tip is rotated,
This polishing and painting work is performed over the entire circumference of the object to be painted.

Thus, according to the present invention, one of the cylindrical structures
Applying force when the worker approaches the surface to be painted,
Even if there is no such thing, the substrate preparation and painting process can be performed automatically and efficiently, saving labor, shortening the construction period, and reducing construction costs.

The present invention will be described below with reference to the illustrated embodiments.

In Fig. 1, the object to be painted (A), which is a cylindrical structure, is arranged on four sets of rotatable turntables (front, rear, left and right), and a rail (2) is laid between the turntables (1). A traveling frame (3) is movably mounted on the rail (2) and is configured to be able to be positioned so as to coincide with the axis of the object to be painted (A+).

A movable painting unit (4) for preparing the substrate of the object to be painted (A) and for painting metals is mounted on the traveling frame (3).

On the ground, there is a control panel (5) that is operated by Rake to control the equipment, and a material supply device (6) that supplies the abrasive material and air necessary for cleaning and painting. The same device (6)
A cable and a material supply hose (7) are connected between the control panel (5) and the later-described cleaning and painting equipment mounted on the traveling frame (3) and movable painting section (4). , transmitting electrical signals, cleaning, and supplying coating materials.

Figures 2 and 3 show details of the movable painting section (4), and the traveling pedestal (3) on which the painting section (4) is mounted has a traveling motor (8) mounted on the pedestal. By driving, the wheels (9) are driven and rotated via a gear transmission mechanism, and the vehicle travels on the traveling rail (2). 0I is the movable painting part (4)
It is a painting frame that constitutes the base body of the gear 0.0, which is suspended by a wire rope (11) from the upper part of the traveling frame (3), and is driven by the lifting motor 021 on the traveling frame (3).
The coating frame (10) is raised and lowered by driving and rotating the pulley (I4) via the pulley (I4) and winding up or lowering the wire rope 0υ.

The lifting frame (1, 61) of the painting frame (10) is fully equipped with support rollers (17), and when the said frame θ0 is raised and lowered, it rolls along the running path 08 provided on the traveling frame (3). When the outside positioning is completed, the cylinder 0!1 attached to the elevating pedestal 06) is extended, the lock bio corridor is inserted into the traveling pedestal (3), and the above-mentioned Lock the elevating frame (16). In addition, in order to balance the load of the painting frame (1α), a balance weight (2υ is suspended.

A transverse rail (2 rails) is laid on the elevating frame (16),
The same transverse rail (swivel transverse bogie mounted on 23 (c)
However, the drive motor C on the same truck! By driving and rotating the wheels (c) by (a), the wheels (c) are moved along the traversing rails (22).Furthermore, by moving the turning motor (a) provided on the turning traversing trolley, the gears ( 5
), the trolley (c) rotates 180°, and performs cleaning,
Determine the direction of painting. The rotating transverse trolley (c) constitutes a support member for the above-mentioned abrasive and coating equipment, and on the same trolley there are installed the later-described abrasive equipment, painting equipment, painted surface cleaning equipment, and coating film. A thickness measuring device is mounted on the rack.

The cleaning device is equipped with a cleaning side injection nozzle (c) at the tip, and is connected to a support pressing arm (7) supported on the cart e (by means of a bearing (2! lit) and a driving arm (■) It consists of an air cylinder 0υ and a material supply device on the ground (
6) It is configured to perform the cleaning work by supplying the abrasive material.

In addition, the painting equipment includes a painting robot (c) equipped with a painting nozzle 02, a hydraulic unit for controlling the robot, a painting tank and a pump (for preventing paint scattering 7-m), and a distance detection sensor C3η. is configured.

Furthermore, the painted surface cleaning device cleans the object to be painted (
A) is used to remove and clean dust etc. attached to the roll brush (2) and the brush drive motor 01. It is equipped with a roll brush support arm (4υ) at its tip and is supported on the trolley (23) by a bearing (4G), and an air cylinder (42) for pressing the arm.

Furthermore, the coating film thickness measuring device is composed of an air cylinder (44) equipped with a sensor (43) at its tip, which presses the sensor (43) against the coating film thickness measurement point, ) is carried out by the cleaning nozzle pressing air cylinder 6υ of the cleaning device and the support pressing arm.

In addition, in the figure (four are industrial I installed on the elevating frame α0)
J'4fveh) 5(-'uf'f%・6ゝ-Kii71J-=Monitor the lying state.

Since the illustrated embodiment is constructed as described above, the traveling pedestal (3) on which the cleaning and painting pedestal (10) is mounted,
Wheels (9) by driving the traveling motor (8)
is rotated and run on the traveling rail (2) to align the axis of the cleaning/painting frame 00) with the axis of the object to be painted (A) mounted on the turn chisel (1). If there is abrasive work to be done, move further by a distance of Ll shown in Figure 3, align the axis of the object to be painted (A) with the axis of the abrasive injection nozzle, and stop. 1. After positioning, move the traveling frame. (3) To prevent runaway, it is fixed to the rail with a rail clamp device (not shown). Next, the lift motor 0 rotates the pulley (1) in the forward or reverse direction, and the wire rope (IIL pulley a1
The polishing and painting stand α0) is raised and lowered through the polishing and painting position to position it at the polishing position. At this time, the support roller (17) provided on the elevating pedestal 06) moves up and down using the traveling path marked a provided on the traveling pedestal (3) as a guide. When the positioning is completed, the elevating frame α6
) The lock pin holder installed in the cylinder is moved to the base (3)
The lifting position is fixed by engaging with the boss hole provided in the. Next, in order to make the abrasive injection nozzle face the object to be painted (A), if necessary, drive the rotation motor (A)) and drive the gear (5).
) to rotate the abrasive injection nozzle 180°. In this case, the rotating/traversing cart (corporate) must always rotate at the center of the elevating gantry ([6)] to prevent interference with the elevating gantry (1G).

Once the direction of the abrasive injection nozzle (c) is determined, drive the traverse drive motor I24) to rotate the wheel (c) forward or reverse to move the abrasive injection nozzle (281) close to the object to be painted (Al). let

After positioning the traversing frame, the rail is clamped using a clamp device (not shown), and the rotating/traversing carriage (23) is fixed. The polishing work is carried out using the cylinder 01) using the abrasive material injection nozzle Q.
After sliding the support pressing arm (G) to which 8) is attached on the bearing Qω and pressing the abrasive spray nozzle (C) onto the object to be painted (A), the material supply device installed on the ground A polishing material is supplied from (6) through a hose (7), and the object to be coated (A) is rotated by a turntable (11) to start cleaning.

When the cleaning is finished, the rotation of the object (A) is stopped, the supply of the abrasive material is stopped, and the abrasive material injection nozzle (mark 2 is moved from the object to be painted (A) to the air cylinder 01) is supported and pressed. arm 00) and slide it on the bearing (31).Next, in the same way, move the traveling frame (3) onto the traveling rail (2).
) to align the axes of the painting robot (c) and the object to be painted (A), and fix the traveling frame (3).

The painted surface cleaning work is carried out by rotating the roll brush (to) with the drive motor (31), and then sliding the support pressing arm (41) to which the roll brush is attached with the pressing air cylinder (421) over the bearing surface. After pressing the roll brush 2 against the object to be painted (A), the object to be painted is rotated to clean the painted surface. When the cleaning of the painted surface is completed, the roll brush 2 is pressed against the object to be painted (A).
) is stopped, and the roll brush (to) is moved back from the object to be painted (A) by sliding it on the bearing (40) together with the pressing air cylinder (4) supported by the pressing arm (4I). After fixing the robot (C) in its basic position, the distance sensor G'? The turning/traversing cart Q, 1 is advanced in the same manner until the distance reaches L3. When L3 is detected by the distance sensor C37), the traversing is stopped and positioning is performed.

After positioning, the rail is clamped by a rail clamp device (not shown) to fix the rotating/traversing cart (c). After the positioning is completed, the oiler on the ground gives painting control data, sends paint from the paint tank and pump 0 to the painting nozzle c32, and starts painting.

The coating pattern at this time is shown in Figures 4 and 5.2]1
There is a zero. In the case of Figure 4, a certain range, for example, )
After painting, the turning position was determined using Turnchinol (1). ) is repeated in sequence, and in the case of Fig. 5, the turn-chinol (1) is rotated and the paint is applied as shown by Q from the bottom. By repeating the above operations, the surface of the object to be painted (A) is coated.

To measure the paint film thickness, after the paint has dried, use the method described above to position the traveling platform (3) by correcting the distance by 52 minutes, and place the object to be painted (A) and the paint film thickness measurement sensor ( 43, then slide the support arm (30) over the bearing (291) with the cylinder bracket.
After bringing it close to the object to be painted (A),
Measurement is performed by pressing the air cylinder (44) against the object to be painted (A).

When the painting work on one object to be painted (A) is completed, the present device is similarly positioned on another object to be painted and abrasive coating is performed.

Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments. It is.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the coating apparatus for a cylindrical structure according to the present invention, FIG. 2 is a front view with some of its main parts cut away, and FIG. View of arrows 1-1, 4 and 5
The figures are explanatory diagrams showing the painting method using the above-mentioned apparatus, Figures 6, 7, and 8 are perspective views showing the assembly process of a cylindrical structure, and Figures 9 and 10 are respectively conventional painting methods. FIGS. 11 and 12 are a front view and a plan view, respectively, showing another example of a conventional coating device. (1)... Turntable, (21... Traveling rail, (31... Traveling mount, Ql... Painting mount, αe
... Elevating frame, (c) ... Rotating transverse trolley, 0.
・Abrasive material injection nozzle, (to)... Support pressing arm, (
31)...Air cylinder, (c)...Painting robot, (2)...Roll brush, 0υ...Roll brush pressing arm, (4ri...Air cylinder, (43)...Sensor, ( 44)...Air cylinder. Sub-agent Patent attorney Shige Okamoto Three people outside the kiln Fig. 1 Pj No. 4 V Han 5

Claims (1)

[Claims] A turntable on which the object to be painted is mounted, a traveling rail laid along the turntable, a traveling pedestal running on the same rail, a painting pedestal mounted on the traveling pedestal so as to be able to rise and fall, and a pedestal for painting. It is characterized by comprising a support member for an abrasive and coating device mounted on a pedestal so that it can move forward and backward as well as turn freely, and a positioning mechanism that moves the abrasive and coating device on the support member toward and away from the object to be coated. Coating equipment for cylindrical structures.