JPH0852402A - Long material coating equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a coating device for a long material that minimizes adverse effects on the surrounding environment and enables high-quality coating without uneven coating or dripping of paint. [Structure] A traveling section 10 for moving the apparatus main body in parallel along the length direction of the long material 3, coating rollers 23, 25a, 25b impregnated with a paint applied to the surface of the long material 3, and a coating roller. Is elastically pressed against the coating surface of the long material, and the clamp portions 22, 27a, 2 are provided with a pressure adjusting means for uniformly pressing the rolling surface of the coating roller against the coating surface.
7b, a means for detecting the amount of travel, a pump 42 for supplying the paint to the coating roller, and a paint supply control means for adjusting the timing of sending the paint to the coating roller based on the detected travel amount. It is composed of parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long material coating apparatus for coating a long material such as a rail with high quality and automating the coating process without adversely affecting the surrounding environment.

[0002]

2. Description of the Related Art In recent years, a robot for painting has been introduced into the painting process and has been automated. However, when painting a long material in this kind of painting work, the long material is extremely unidirectional. Due to its long shape, it is painted by hand or painted with a spray gun. There is also known an example in which a coating robot equipped with a spray gun is applied to coating this type of long material.

[0003]

However, in the case of a long material, the coating surface becomes longer in one direction than in the case of coating a flat member having a wide coating surface. Or the paint is liable to drip from the area where the paint is applied too much. In particular, in the case of painting with a spray gun, a booth and a ventilation facility are indispensable because the sprayed mist-like paint is scattered around and adversely affects the surrounding environment. Therefore, the object of the present invention is to solve the problems of the above-mentioned conventional technology, to minimize the adverse effects on the surrounding environment, uneven coating, long material that enables high-quality coating without dripping of paint. To provide a coating device.

[0004]

In order to achieve the above-mentioned object, the present invention provides a traveling portion for moving the apparatus main body in parallel along the length direction of the long material and a surface of the long material. A coating roller impregnated with the coating material to be coated, and a pressure adjusting means for elastically pressing the coating roller against the coating surface of the long material and pressing the rolling surface of the coating roller evenly against the coating surface were provided. A paint supply unit having a clamp part, a means for detecting the amount of travel, a pump for supplying the paint to the roller, and a paint supply control means for adjusting the timing of supplying the paint to the coating roller based on the detected travel amount. It is composed of and.

[0005]

According to the present invention, the coating roller is pressed against the application surface of the long material by the operation of the clamp portion, and the coating roller applies the long material along with the movement of the main body of the coating apparatus along the long material. As the surface rolls, the paint is transferred to the application surface of the long material. At this time, the pressure adjusting means uniformly presses the coating roller so that its rotation axis is parallel to the coating surface, and also absorbs undulations and inclinations of the surface. In addition, since a constant amount of paint is repeatedly supplied to the coating roller at regular intervals, high-quality coating can be performed with a constant coating thickness and the surrounding environment is adversely affected. Can be prevented.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a long material coating apparatus according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a diagram showing an overall outline of a coating process by a coating device 1 applied to coating a rail having a T-shaped cross section as a long material 3.
The coating device 1 rolls the coating roller impregnated with the coating material onto the surface of the long material 3 and moves along the traveling rail 2 to form the long material 3
And the long material 3 supported on the jigs 5 and 5 is painted. The control panel 4 controls the traveling and the coating operation of the coating apparatus 1.

2 and 3 show the construction of the coating apparatus 1 of FIG. 1 in detail, FIG. 2 is a front view of the coating apparatus 1, and FIG. 3 is a side view.

This coating apparatus 1 has a traveling portion 10 for moving the apparatus main body along a long member 3, coating rollers 23, 25a and 25b impregnated with a coating material, and the coating roller 2
It is basically composed of a clamp section for pressing 3, 25a, 25b against the long material 3 and a coating section 12 provided with a paint supply section for supplying paint to the coating roller.

First, a motor 14 is mounted on the traveling unit 10 as a drive source, and by rotating the wheels 13 which are rotatably engaged with the guide rail 2 by the motor 14, the coating apparatus 1 The whole is configured to move. The rollers 15 and 15 contacting the bottom surface of the guide rail 2.
Is supported so as to rotate with the movement of the coating apparatus 1. A rotary encoder 16 is connected to the rotary shaft of the roller 15 and the movement amount of the coating apparatus 1 is detected from the output pulse of the rotary encoder 16. .

A mounting base 20 for the coating unit 12 is provided so as to extend downward from the base 17 of the traveling unit 10 via a guide rod 18. The mounting base 20 is configured to be movable in the vertical direction using an air cylinder 22, and the piston rod of the air cylinder 22 of the first coating roller 23 supported on the lower surface of the mounting base 20 via an arm 21 extends. By doing so, it is configured to be pressed against the coating surface of the upper surface of the long material 3. At this time, the air cylinder 22
The supply air pressure of the first roller 2 can be adjusted by a regulator (not shown), so that the first surface of the first roller 2 can be elastic with respect to the vertical waviness and inclination of the coating surface of the long material 3.
3 can be pressed evenly.

Next, a roller pair consisting of second coating rollers 25a and 25b is rotated around the shaft 26 so that the vertically standing portion of the coating surface of the long material 3 can be coated at one time from both sides. It is movably supported. In this case, opening and closing of the second coating rollers 25a and 25b are driven by rotary cylinders 27a and 27b, respectively, and when the second coating rollers 25a and 25b rotate in the closing direction, both rollers 25a and 25b are closed. The rolling surface is pressed against the long material 3 so as to sandwich it from the side surface. Then, in order to cope with the undulation or inclination of the side surface of the long material 3, the rotary cylinders 27a, 27
As shown in FIG. 4, the roller b and the roller support member 28 are connected by links 30a and 30b connected by a pin 29, and springs 32 are attached to both sides of the links 30a and 30b. . In addition, a pin 33 of one link is connected to the outside of the springs 32, 32 by a link that engages with an elongated hole 34 of the other link, so that the roller support member 38 is allowed to swing. ing. In this embodiment, the coating rollers 23, 25a,
Although a cylindrical type is used for 25b, various shapes can be used according to the shape of the coated surface.

Next, FIG. 5 shows the first coating roller 23 and the second coating roller 23.
It is a figure which shows the structure of the paint supply part 40 which supplies paint to the coating rollers 25a and 25b. The paint is contained in the tank 41, and the paint discharged from the pump 42 is adjusted to an appropriate flow rate by the flow control valve 43 and supplied to the first coating roller 23 and the second coating rollers 25a and 25b, respectively. It As the pump 42, a hydraulic pump controlled by hydraulic pressure is used. The hydraulic oil of the pump 42 is supplied from the hydraulic pressure source 52 to the pump 42 via the electromagnetic valve 44, and the rotation speed of the roller 15 of the traveling unit 10 is the same as that of the roller 15.
The number of output pulses is detected by the rotary encoder 16 connected to the rotating shaft of the counter, and the number of output pulses is counted by the counter 51. The control unit 53 of the control panel 4 energizes the solenoid valve 44 when the counted number of pulses reaches a certain value. Therefore, after traveling a certain distance, the electromagnetic valve 44 opens and the pump operates, so that the first roller 23 and the second roller 2 respectively.
An appropriate amount of paint is supplied to 5a and 25b by adjusting the timing.

The present embodiment is constructed as described above, and its operation will be described below.

First, when the piston rod is extended by the operation of the air cylinder 22, the first coating roller 23 is pressed against the coating surface of the upper surface of the long material 3.
When the rotary cylinders 26a and 26b are activated,
The second rollers 25a and 25b rotate in the closing direction from the left and right side surfaces and press the long material 3 against the coating surface so as to sandwich the long material 3. In this state, when the motor 14 of the traveling unit 10 is rotated and the main body of the coating apparatus travels along the guide rail 2, the coating material impregnated in the coating rollers 23, 26a, 26b is transferred to the upper surface and the left and right surfaces of the long material 3. It is applied as described above.

During this time, the first coating roller 23 is urged by the air cylinder 22 to come into pressure contact with the upper coating surface of the long material 3, and the elasticity is maintained by adjusting the air pressure of the air cylinder 22. However, since they make uniform contact, even if there are undulations in the vertical direction, the undulations are absorbed and the first coating roller 23 can apply a fixed amount of coating material.

On the other hand, the second coating rollers 25a and 25b
Is in contact with the rotary cylinders 27a and 27b, the shaft and the roller supporting member 28 so that the rotary shaft of the roller and the coated surface are always parallel to each other by using the pressure adjusting means composed of the spring and the link shown in FIG. Therefore, uneven coating can be prevented.

In addition, when the coating material is supplied over a certain distance, the pump 42 is operated at a certain timing, and the first coating roller 23 and the second coating roller 25 are respectively supplied.
An appropriate amount is replenished to a and 25b through the flow rate control valve 43. For this reason, not only the paint is insufficient in the middle to cause uneven coating, but also it is possible to eliminate the adverse effect on the surrounding environment without causing the paint to drop on the floor and stain the surroundings due to excessive supply of the paint.

In the above embodiment, the paint supply unit 40
This is an example of a structure in which the coating device is attached to the main body of the coating device. However, the present invention is not limited to this. By configuring, it is possible to use a larger capacity tank.

Further, in general, when a vertical coating surface of a long material is coated, the coating material soaked into the coating roller on the vertical surface gradually accumulates in the portion below the coating roller. As a result, the amount of paint soaked in the upper part of the coating roller is relatively reduced,
If you continue painting as it is, uneven coating will occur.

For this reason, the method of supplying the coating material to the coating roller is as shown in FIGS. 5 to 7, so that it is possible to apply the coating evenly on a vertical coating surface. First, as shown in FIG. 6, a cylinder 62 for raising and lowering the coating roller 60 and a U-shaped support member 63 for rotatably supporting the coating roller 60 are used to raise and lower the support member 63 by the cylinder 62 to perform coating. Roller 6
The position above and below 0 can be switched. In this case, one end of the rotary shaft of the coating roller 60 is rotatably connected about the shaft 64, and the other end of the rotary shaft is supported by either of the support sides 63a and 63b of the support member. , The upper and lower positions can be reversed.

Next, FIG. 7 shows a paint supply system for preventing unevenness of the paint soaked in the paint roller 70. The paint supplied from the paint tank 73 through the supply pipe 72 is the paint roller 70. After soaking in, it gradually accumulates in the lower part. Therefore, the amount of the coating material impregnated in the coating roller can be made uniform by sucking the coating material into the coating material tank 73 through the suction pipes 74 and 75 which are inserted into the lower portion of the coating roller.

Further, as shown in FIG. 8, every time one coating application is completed, the coating roller 70 is sandwiched by using a pair of pressing plates 77 and 78 for the coating roller 70. It is preferable to squeeze out excess paint.

[0023]

As is apparent from the above description, according to the present invention, the running portion for moving the apparatus main body in parallel along the length direction of the long material and the coating on the surface of the long material. A clamp unit including a coating roller impregnated with a coating material, and a pressure adjusting unit that elastically presses the coating roller against a coating surface of a long material and uniformly presses the rolling surface of the coating roller against the coating surface. A paint having a means for detecting the amount of travel, a pump for supplying the paint to the coating roller, and a paint supply control means for adjusting the timing at which the paint is supplied to the coating roller based on the detected travel amount. Since it is composed of a supply part, it is possible to make high-quality paint with no coating unevenness into a long material, and also to prevent the paint from dripping down to the surroundings and to prevent the work environment from being adversely affected. Automation of work It can be achieved to.

[Brief description of drawings]

FIG. 1 is an overall view showing a situation in which a long material is coated by a coating device according to an embodiment of the present invention.

FIG. 2 is a front view of the coating apparatus according to the embodiment.

FIG. 3 is a side view of the coating apparatus according to the embodiment.

FIG. 4 is a front view showing a support structure of a coating roller portion of a coating device.

FIG. 5 is an explanatory diagram showing a configuration of a paint supply unit of the coating device.

FIG. 6 is an explanatory diagram showing a method of supplying paint to a coating roller unit.

FIG. 7 is an explanatory view showing a method of supplying paint to a coating roller portion according to another example.

FIG. 8 is an explanatory view showing a method of supplying paint to a coating roller portion according to another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coating device 2 Traveling rail 3 Long material 4 Control panel 10 Traveling part 12 Coating part 14 Motor 16 Rotary encoder 22 Air cylinder 23 Coating roller 25 Coating roller 27 Rotary cylinder 28 Roller support member 40 Paint supply part 41 Tank 42 Pump 44 Electromagnetic valve

Claims (1)

[Claims] 1. A running portion for moving the apparatus main body in parallel along the length direction of the long material, a coating roller impregnated with a paint applied to the surface of the long material, and the coating roller for the long material. Of the coating roller, which is elastically pressed against the coating surface of the coating roller, and which is provided with a pressure adjusting means that uniformly presses the rolling surface of the coating roller against the coating surface, a means for detecting the running amount, and a coating material for the coating roller. And a paint supply unit having a paint supply control means for adjusting the timing of supplying paint to the coating roller based on the detected running amount.